diff options
| author | Simon L. B. Nielsen <simon@FreeBSD.org> | 2008-08-23 10:51:00 +0000 |
|---|---|---|
| committer | Simon L. B. Nielsen <simon@FreeBSD.org> | 2008-08-23 10:51:00 +0000 |
| commit | c4a78426bef17a0a7c81195c2b2399e7441f14ad (patch) | |
| tree | 596c39f00d5968b1519e8cd7f0546412b14c20f0 /ssl | |
| parent | a0ddfe4e7233d81e88a86217b7653708db2720fa (diff) | |
| download | src-c4a78426bef17a0a7c81195c2b2399e7441f14ad.tar.gz src-c4a78426bef17a0a7c81195c2b2399e7441f14ad.zip | |
Flatten OpenSSL vendor tree.
Notes
Notes:
svn path=/vendor-crypto/openssl/dist/; revision=182044
Diffstat (limited to 'ssl')
| -rw-r--r-- | ssl/Makefile | 970 | ||||
| -rw-r--r-- | ssl/bio_ssl.c | 598 | ||||
| -rw-r--r-- | ssl/d1_both.c | 1191 | ||||
| -rw-r--r-- | ssl/d1_clnt.c | 1143 | ||||
| -rw-r--r-- | ssl/d1_enc.c | 281 | ||||
| -rw-r--r-- | ssl/d1_lib.c | 190 | ||||
| -rw-r--r-- | ssl/d1_meth.c | 77 | ||||
| -rw-r--r-- | ssl/d1_pkt.c | 1772 | ||||
| -rw-r--r-- | ssl/d1_srvr.c | 1130 | ||||
| -rw-r--r-- | ssl/dtls1.h | 211 | ||||
| -rw-r--r-- | ssl/kssl.c | 2203 | ||||
| -rw-r--r-- | ssl/kssl.h | 179 | ||||
| -rw-r--r-- | ssl/kssl_lcl.h | 87 | ||||
| -rw-r--r-- | ssl/s23_clnt.c | 581 | ||||
| -rw-r--r-- | ssl/s23_lib.c | 198 | ||||
| -rw-r--r-- | ssl/s23_meth.c | 88 | ||||
| -rw-r--r-- | ssl/s23_pkt.c | 117 | ||||
| -rw-r--r-- | ssl/s23_srvr.c | 572 | ||||
| -rw-r--r-- | ssl/s2_clnt.c | 1123 | ||||
| -rw-r--r-- | ssl/s2_enc.c | 194 | ||||
| -rw-r--r-- | ssl/s2_lib.c | 478 | ||||
| -rw-r--r-- | ssl/s2_meth.c | 84 | ||||
| -rw-r--r-- | ssl/s2_pkt.c | 737 | ||||
| -rw-r--r-- | ssl/s2_srvr.c | 1143 | ||||
| -rw-r--r-- | ssl/s3_both.c | 622 | ||||
| -rw-r--r-- | ssl/s3_clnt.c | 2458 | ||||
| -rw-r--r-- | ssl/s3_enc.c | 720 | ||||
| -rw-r--r-- | ssl/s3_lib.c | 2406 | ||||
| -rw-r--r-- | ssl/s3_meth.c | 77 | ||||
| -rw-r--r-- | ssl/s3_pkt.c | 1311 | ||||
| -rw-r--r-- | ssl/s3_srvr.c | 2618 | ||||
| -rw-r--r-- | ssl/ssl.h | 1961 | ||||
| -rw-r--r-- | ssl/ssl2.h | 268 | ||||
| -rw-r--r-- | ssl/ssl23.h | 83 | ||||
| -rw-r--r-- | ssl/ssl3.h | 555 | ||||
| -rw-r--r-- | ssl/ssl_algs.c | 131 | ||||
| -rw-r--r-- | ssl/ssl_asn1.c | 398 | ||||
| -rw-r--r-- | ssl/ssl_cert.c | 829 | ||||
| -rw-r--r-- | ssl/ssl_ciph.c | 1365 | ||||
| -rw-r--r-- | ssl/ssl_err.c | 498 | ||||
| -rw-r--r-- | ssl/ssl_err2.c | 70 | ||||
| -rw-r--r-- | ssl/ssl_lib.c | 2590 | ||||
| -rw-r--r-- | ssl/ssl_locl.h | 950 | ||||
| -rw-r--r-- | ssl/ssl_rsa.c | 777 | ||||
| -rw-r--r-- | ssl/ssl_sess.c | 836 | ||||
| -rw-r--r-- | ssl/ssl_stat.c | 502 | ||||
| -rw-r--r-- | ssl/ssl_task.c | 369 | ||||
| -rw-r--r-- | ssl/ssl_txt.c | 188 | ||||
| -rw-r--r-- | ssl/ssltest.c | 2294 | ||||
| -rw-r--r-- | ssl/t1_clnt.c | 79 | ||||
| -rw-r--r-- | ssl/t1_enc.c | 840 | ||||
| -rw-r--r-- | ssl/t1_lib.c | 119 | ||||
| -rw-r--r-- | ssl/t1_meth.c | 76 | ||||
| -rw-r--r-- | ssl/t1_srvr.c | 80 | ||||
| -rw-r--r-- | ssl/tls1.h | 305 |
55 files changed, 41722 insertions, 0 deletions
diff --git a/ssl/Makefile b/ssl/Makefile new file mode 100644 index 000000000000..ca1f0eb82e59 --- /dev/null +++ b/ssl/Makefile @@ -0,0 +1,970 @@ +# +# OpenSSL/ssl/Makefile +# + +DIR= ssl +TOP= .. +CC= cc +INCLUDES= -I../crypto -I$(TOP) -I../include $(KRB5_INCLUDES) +CFLAG=-g +MAKEFILE= Makefile +AR= ar r +# KRB5 stuff +KRB5_INCLUDES= + +CFLAGS= $(INCLUDES) $(CFLAG) + +GENERAL=Makefile README ssl-lib.com install.com +TEST=ssltest.c +APPS= + +LIB=$(TOP)/libssl.a +SHARED_LIB= libssl$(SHLIB_EXT) +LIBSRC= \ + s2_meth.c s2_srvr.c s2_clnt.c s2_lib.c s2_enc.c s2_pkt.c \ + s3_meth.c s3_srvr.c s3_clnt.c s3_lib.c s3_enc.c s3_pkt.c s3_both.c \ + s23_meth.c s23_srvr.c s23_clnt.c s23_lib.c s23_pkt.c \ + t1_meth.c t1_srvr.c t1_clnt.c t1_lib.c t1_enc.c \ + d1_meth.c d1_srvr.c d1_clnt.c d1_lib.c d1_pkt.c \ + d1_both.c d1_enc.c \ + ssl_lib.c ssl_err2.c ssl_cert.c ssl_sess.c \ + ssl_ciph.c ssl_stat.c ssl_rsa.c \ + ssl_asn1.c ssl_txt.c ssl_algs.c \ + bio_ssl.c ssl_err.c kssl.c +LIBOBJ= \ + s2_meth.o s2_srvr.o s2_clnt.o s2_lib.o s2_enc.o s2_pkt.o \ + s3_meth.o s3_srvr.o s3_clnt.o s3_lib.o s3_enc.o s3_pkt.o s3_both.o \ + s23_meth.o s23_srvr.o s23_clnt.o s23_lib.o s23_pkt.o \ + t1_meth.o t1_srvr.o t1_clnt.o t1_lib.o t1_enc.o \ + d1_meth.o d1_srvr.o d1_clnt.o d1_lib.o d1_pkt.o \ + d1_both.o d1_enc.o \ + ssl_lib.o ssl_err2.o ssl_cert.o ssl_sess.o \ + ssl_ciph.o ssl_stat.o ssl_rsa.o \ + ssl_asn1.o ssl_txt.o ssl_algs.o \ + bio_ssl.o ssl_err.o kssl.o + +SRC= $(LIBSRC) + +EXHEADER= ssl.h ssl2.h ssl3.h ssl23.h tls1.h dtls1.h kssl.h +HEADER= $(EXHEADER) ssl_locl.h kssl_lcl.h + +ALL= $(GENERAL) $(SRC) $(HEADER) + +top: + (cd ..; $(MAKE) DIRS=$(DIR) all) + +all: shared + +lib: $(LIBOBJ) + $(AR) $(LIB) $(LIBOBJ) + $(RANLIB) $(LIB) || echo Never mind. + @touch lib + +shared: lib + if [ -n "$(SHARED_LIBS)" ]; then \ + (cd ..; $(MAKE) $(SHARED_LIB)); \ + fi + +files: + $(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO + +links: + @$(PERL) $(TOP)/util/mklink.pl ../include/openssl $(EXHEADER) + @$(PERL) $(TOP)/util/mklink.pl ../test $(TEST) + @$(PERL) $(TOP)/util/mklink.pl ../apps $(APPS) + +install: + @[ -n "$(INSTALLTOP)" ] # should be set by top Makefile... + @headerlist="$(EXHEADER)"; for i in $$headerlist ; \ + do \ + (cp $$i $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i; \ + chmod 644 $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i ); \ + done; + +tags: + ctags $(SRC) + +tests: + +lint: + lint -DLINT $(INCLUDES) $(SRC)>fluff + +depend: + @if [ -z "$(THIS)" ]; then \ + $(MAKE) -f $(TOP)/Makefile reflect THIS=$@; \ + else \ + $(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC); \ + fi + +dclean: + $(PERL) -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new + mv -f Makefile.new $(MAKEFILE) + +clean: + rm -f *.o *.obj lib tags core .pure .nfs* *.old *.bak fluff + +# DO NOT DELETE THIS LINE -- make depend depends on it. + +bio_ssl.o: ../include/openssl/asn1.h ../include/openssl/bio.h +bio_ssl.o: ../include/openssl/bn.h ../include/openssl/buffer.h +bio_ssl.o: ../include/openssl/comp.h ../include/openssl/crypto.h +bio_ssl.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +bio_ssl.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +bio_ssl.o: ../include/openssl/ecdsa.h ../include/openssl/err.h +bio_ssl.o: ../include/openssl/evp.h ../include/openssl/kssl.h +bio_ssl.o: ../include/openssl/lhash.h ../include/openssl/obj_mac.h +bio_ssl.o: ../include/openssl/objects.h ../include/openssl/opensslconf.h +bio_ssl.o: ../include/openssl/opensslv.h ../include/openssl/ossl_typ.h +bio_ssl.o: ../include/openssl/pem.h ../include/openssl/pem2.h +bio_ssl.o: ../include/openssl/pkcs7.h ../include/openssl/pq_compat.h +bio_ssl.o: ../include/openssl/pqueue.h ../include/openssl/safestack.h +bio_ssl.o: ../include/openssl/sha.h ../include/openssl/ssl.h +bio_ssl.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +bio_ssl.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +bio_ssl.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +bio_ssl.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h bio_ssl.c +d1_both.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +d1_both.o: ../include/openssl/bn.h ../include/openssl/buffer.h +d1_both.o: ../include/openssl/comp.h ../include/openssl/crypto.h +d1_both.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +d1_both.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +d1_both.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +d1_both.o: ../include/openssl/err.h ../include/openssl/evp.h +d1_both.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +d1_both.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +d1_both.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +d1_both.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +d1_both.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +d1_both.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +d1_both.o: ../include/openssl/rand.h ../include/openssl/rsa.h +d1_both.o: ../include/openssl/safestack.h ../include/openssl/sha.h +d1_both.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +d1_both.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +d1_both.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +d1_both.o: ../include/openssl/tls1.h ../include/openssl/x509.h +d1_both.o: ../include/openssl/x509_vfy.h d1_both.c ssl_locl.h +d1_clnt.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +d1_clnt.o: ../include/openssl/bn.h ../include/openssl/buffer.h +d1_clnt.o: ../include/openssl/comp.h ../include/openssl/crypto.h +d1_clnt.o: ../include/openssl/dh.h ../include/openssl/dsa.h +d1_clnt.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +d1_clnt.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +d1_clnt.o: ../include/openssl/ecdsa.h ../include/openssl/err.h +d1_clnt.o: ../include/openssl/evp.h ../include/openssl/kssl.h +d1_clnt.o: ../include/openssl/lhash.h ../include/openssl/md5.h +d1_clnt.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +d1_clnt.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +d1_clnt.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +d1_clnt.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +d1_clnt.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +d1_clnt.o: ../include/openssl/rand.h ../include/openssl/rsa.h +d1_clnt.o: ../include/openssl/safestack.h ../include/openssl/sha.h +d1_clnt.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +d1_clnt.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +d1_clnt.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +d1_clnt.o: ../include/openssl/tls1.h ../include/openssl/x509.h +d1_clnt.o: ../include/openssl/x509_vfy.h d1_clnt.c kssl_lcl.h ssl_locl.h +d1_enc.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +d1_enc.o: ../include/openssl/bn.h ../include/openssl/buffer.h +d1_enc.o: ../include/openssl/comp.h ../include/openssl/crypto.h +d1_enc.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +d1_enc.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +d1_enc.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +d1_enc.o: ../include/openssl/err.h ../include/openssl/evp.h +d1_enc.o: ../include/openssl/hmac.h ../include/openssl/kssl.h +d1_enc.o: ../include/openssl/lhash.h ../include/openssl/md5.h +d1_enc.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +d1_enc.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +d1_enc.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +d1_enc.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +d1_enc.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +d1_enc.o: ../include/openssl/rand.h ../include/openssl/rsa.h +d1_enc.o: ../include/openssl/safestack.h ../include/openssl/sha.h +d1_enc.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +d1_enc.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +d1_enc.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +d1_enc.o: ../include/openssl/tls1.h ../include/openssl/x509.h +d1_enc.o: ../include/openssl/x509_vfy.h d1_enc.c ssl_locl.h +d1_lib.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +d1_lib.o: ../include/openssl/bn.h ../include/openssl/buffer.h +d1_lib.o: ../include/openssl/comp.h ../include/openssl/crypto.h +d1_lib.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +d1_lib.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +d1_lib.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +d1_lib.o: ../include/openssl/err.h ../include/openssl/evp.h +d1_lib.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +d1_lib.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +d1_lib.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +d1_lib.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +d1_lib.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +d1_lib.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +d1_lib.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +d1_lib.o: ../include/openssl/sha.h ../include/openssl/ssl.h +d1_lib.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +d1_lib.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +d1_lib.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +d1_lib.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h d1_lib.c +d1_lib.o: ssl_locl.h +d1_meth.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +d1_meth.o: ../include/openssl/bn.h ../include/openssl/buffer.h +d1_meth.o: ../include/openssl/comp.h ../include/openssl/crypto.h +d1_meth.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +d1_meth.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +d1_meth.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +d1_meth.o: ../include/openssl/err.h ../include/openssl/evp.h +d1_meth.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +d1_meth.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +d1_meth.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +d1_meth.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +d1_meth.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +d1_meth.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +d1_meth.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +d1_meth.o: ../include/openssl/sha.h ../include/openssl/ssl.h +d1_meth.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +d1_meth.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +d1_meth.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +d1_meth.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h d1_meth.c +d1_meth.o: ssl_locl.h +d1_pkt.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +d1_pkt.o: ../include/openssl/bn.h ../include/openssl/buffer.h +d1_pkt.o: ../include/openssl/comp.h ../include/openssl/crypto.h +d1_pkt.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +d1_pkt.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +d1_pkt.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +d1_pkt.o: ../include/openssl/err.h ../include/openssl/evp.h +d1_pkt.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +d1_pkt.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +d1_pkt.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +d1_pkt.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +d1_pkt.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +d1_pkt.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +d1_pkt.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +d1_pkt.o: ../include/openssl/sha.h ../include/openssl/ssl.h +d1_pkt.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +d1_pkt.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +d1_pkt.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +d1_pkt.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h d1_pkt.c +d1_pkt.o: ssl_locl.h +d1_srvr.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +d1_srvr.o: ../include/openssl/bn.h ../include/openssl/buffer.h +d1_srvr.o: ../include/openssl/comp.h ../include/openssl/crypto.h +d1_srvr.o: ../include/openssl/dh.h ../include/openssl/dsa.h +d1_srvr.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +d1_srvr.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +d1_srvr.o: ../include/openssl/ecdsa.h ../include/openssl/err.h +d1_srvr.o: ../include/openssl/evp.h ../include/openssl/kssl.h +d1_srvr.o: ../include/openssl/lhash.h ../include/openssl/md5.h +d1_srvr.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +d1_srvr.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +d1_srvr.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +d1_srvr.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +d1_srvr.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +d1_srvr.o: ../include/openssl/rand.h ../include/openssl/rsa.h +d1_srvr.o: ../include/openssl/safestack.h ../include/openssl/sha.h +d1_srvr.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +d1_srvr.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +d1_srvr.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +d1_srvr.o: ../include/openssl/tls1.h ../include/openssl/x509.h +d1_srvr.o: ../include/openssl/x509_vfy.h d1_srvr.c ssl_locl.h +kssl.o: ../include/openssl/asn1.h ../include/openssl/bio.h +kssl.o: ../include/openssl/bn.h ../include/openssl/buffer.h +kssl.o: ../include/openssl/comp.h ../include/openssl/crypto.h +kssl.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +kssl.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +kssl.o: ../include/openssl/ecdsa.h ../include/openssl/evp.h +kssl.o: ../include/openssl/krb5_asn.h ../include/openssl/kssl.h +kssl.o: ../include/openssl/lhash.h ../include/openssl/obj_mac.h +kssl.o: ../include/openssl/objects.h ../include/openssl/opensslconf.h +kssl.o: ../include/openssl/opensslv.h ../include/openssl/ossl_typ.h +kssl.o: ../include/openssl/pem.h ../include/openssl/pem2.h +kssl.o: ../include/openssl/pkcs7.h ../include/openssl/pq_compat.h +kssl.o: ../include/openssl/pqueue.h ../include/openssl/safestack.h +kssl.o: ../include/openssl/sha.h ../include/openssl/ssl.h +kssl.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +kssl.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +kssl.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +kssl.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h kssl.c +s23_clnt.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s23_clnt.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s23_clnt.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s23_clnt.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s23_clnt.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s23_clnt.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s23_clnt.o: ../include/openssl/err.h ../include/openssl/evp.h +s23_clnt.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s23_clnt.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s23_clnt.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s23_clnt.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s23_clnt.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s23_clnt.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s23_clnt.o: ../include/openssl/rand.h ../include/openssl/rsa.h +s23_clnt.o: ../include/openssl/safestack.h ../include/openssl/sha.h +s23_clnt.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +s23_clnt.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +s23_clnt.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +s23_clnt.o: ../include/openssl/tls1.h ../include/openssl/x509.h +s23_clnt.o: ../include/openssl/x509_vfy.h s23_clnt.c ssl_locl.h +s23_lib.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s23_lib.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s23_lib.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s23_lib.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s23_lib.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s23_lib.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s23_lib.o: ../include/openssl/err.h ../include/openssl/evp.h +s23_lib.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s23_lib.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s23_lib.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s23_lib.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s23_lib.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s23_lib.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s23_lib.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +s23_lib.o: ../include/openssl/sha.h ../include/openssl/ssl.h +s23_lib.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +s23_lib.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +s23_lib.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +s23_lib.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h s23_lib.c +s23_lib.o: ssl_locl.h +s23_meth.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s23_meth.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s23_meth.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s23_meth.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s23_meth.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s23_meth.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s23_meth.o: ../include/openssl/err.h ../include/openssl/evp.h +s23_meth.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s23_meth.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s23_meth.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s23_meth.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s23_meth.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s23_meth.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s23_meth.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +s23_meth.o: ../include/openssl/sha.h ../include/openssl/ssl.h +s23_meth.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +s23_meth.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +s23_meth.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +s23_meth.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h s23_meth.c +s23_meth.o: ssl_locl.h +s23_pkt.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s23_pkt.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s23_pkt.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s23_pkt.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s23_pkt.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s23_pkt.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s23_pkt.o: ../include/openssl/err.h ../include/openssl/evp.h +s23_pkt.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s23_pkt.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s23_pkt.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s23_pkt.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s23_pkt.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s23_pkt.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s23_pkt.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +s23_pkt.o: ../include/openssl/sha.h ../include/openssl/ssl.h +s23_pkt.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +s23_pkt.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +s23_pkt.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +s23_pkt.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h s23_pkt.c +s23_pkt.o: ssl_locl.h +s23_srvr.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s23_srvr.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s23_srvr.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s23_srvr.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s23_srvr.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s23_srvr.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s23_srvr.o: ../include/openssl/err.h ../include/openssl/evp.h +s23_srvr.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s23_srvr.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s23_srvr.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s23_srvr.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s23_srvr.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s23_srvr.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s23_srvr.o: ../include/openssl/rand.h ../include/openssl/rsa.h +s23_srvr.o: ../include/openssl/safestack.h ../include/openssl/sha.h +s23_srvr.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +s23_srvr.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +s23_srvr.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +s23_srvr.o: ../include/openssl/tls1.h ../include/openssl/x509.h +s23_srvr.o: ../include/openssl/x509_vfy.h s23_srvr.c ssl_locl.h +s2_clnt.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s2_clnt.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s2_clnt.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s2_clnt.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s2_clnt.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s2_clnt.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s2_clnt.o: ../include/openssl/err.h ../include/openssl/evp.h +s2_clnt.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s2_clnt.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s2_clnt.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s2_clnt.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s2_clnt.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s2_clnt.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s2_clnt.o: ../include/openssl/rand.h ../include/openssl/rsa.h +s2_clnt.o: ../include/openssl/safestack.h ../include/openssl/sha.h +s2_clnt.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +s2_clnt.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +s2_clnt.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +s2_clnt.o: ../include/openssl/tls1.h ../include/openssl/x509.h +s2_clnt.o: ../include/openssl/x509_vfy.h s2_clnt.c ssl_locl.h +s2_enc.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s2_enc.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s2_enc.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s2_enc.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s2_enc.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s2_enc.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s2_enc.o: ../include/openssl/err.h ../include/openssl/evp.h +s2_enc.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s2_enc.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s2_enc.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s2_enc.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s2_enc.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s2_enc.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s2_enc.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +s2_enc.o: ../include/openssl/sha.h ../include/openssl/ssl.h +s2_enc.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +s2_enc.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +s2_enc.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +s2_enc.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h s2_enc.c +s2_enc.o: ssl_locl.h +s2_lib.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s2_lib.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s2_lib.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s2_lib.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s2_lib.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s2_lib.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s2_lib.o: ../include/openssl/err.h ../include/openssl/evp.h +s2_lib.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s2_lib.o: ../include/openssl/md5.h ../include/openssl/obj_mac.h +s2_lib.o: ../include/openssl/objects.h ../include/openssl/opensslconf.h +s2_lib.o: ../include/openssl/opensslv.h ../include/openssl/ossl_typ.h +s2_lib.o: ../include/openssl/pem.h ../include/openssl/pem2.h +s2_lib.o: ../include/openssl/pkcs7.h ../include/openssl/pq_compat.h +s2_lib.o: ../include/openssl/pqueue.h ../include/openssl/rsa.h +s2_lib.o: ../include/openssl/safestack.h ../include/openssl/sha.h +s2_lib.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +s2_lib.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +s2_lib.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +s2_lib.o: ../include/openssl/tls1.h ../include/openssl/x509.h +s2_lib.o: ../include/openssl/x509_vfy.h s2_lib.c ssl_locl.h +s2_meth.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s2_meth.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s2_meth.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s2_meth.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s2_meth.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s2_meth.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s2_meth.o: ../include/openssl/err.h ../include/openssl/evp.h +s2_meth.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s2_meth.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s2_meth.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s2_meth.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s2_meth.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s2_meth.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s2_meth.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +s2_meth.o: ../include/openssl/sha.h ../include/openssl/ssl.h +s2_meth.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +s2_meth.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +s2_meth.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +s2_meth.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h s2_meth.c +s2_meth.o: ssl_locl.h +s2_pkt.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s2_pkt.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s2_pkt.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s2_pkt.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s2_pkt.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s2_pkt.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s2_pkt.o: ../include/openssl/err.h ../include/openssl/evp.h +s2_pkt.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s2_pkt.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s2_pkt.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s2_pkt.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s2_pkt.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s2_pkt.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s2_pkt.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +s2_pkt.o: ../include/openssl/sha.h ../include/openssl/ssl.h +s2_pkt.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +s2_pkt.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +s2_pkt.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +s2_pkt.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h s2_pkt.c +s2_pkt.o: ssl_locl.h +s2_srvr.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s2_srvr.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s2_srvr.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s2_srvr.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s2_srvr.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s2_srvr.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s2_srvr.o: ../include/openssl/err.h ../include/openssl/evp.h +s2_srvr.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s2_srvr.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s2_srvr.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s2_srvr.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s2_srvr.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s2_srvr.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s2_srvr.o: ../include/openssl/rand.h ../include/openssl/rsa.h +s2_srvr.o: ../include/openssl/safestack.h ../include/openssl/sha.h +s2_srvr.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +s2_srvr.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +s2_srvr.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +s2_srvr.o: ../include/openssl/tls1.h ../include/openssl/x509.h +s2_srvr.o: ../include/openssl/x509_vfy.h s2_srvr.c ssl_locl.h +s3_both.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s3_both.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s3_both.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s3_both.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s3_both.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s3_both.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s3_both.o: ../include/openssl/err.h ../include/openssl/evp.h +s3_both.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s3_both.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s3_both.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s3_both.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s3_both.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s3_both.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s3_both.o: ../include/openssl/rand.h ../include/openssl/rsa.h +s3_both.o: ../include/openssl/safestack.h ../include/openssl/sha.h +s3_both.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +s3_both.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +s3_both.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +s3_both.o: ../include/openssl/tls1.h ../include/openssl/x509.h +s3_both.o: ../include/openssl/x509_vfy.h s3_both.c ssl_locl.h +s3_clnt.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s3_clnt.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s3_clnt.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s3_clnt.o: ../include/openssl/dh.h ../include/openssl/dsa.h +s3_clnt.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +s3_clnt.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +s3_clnt.o: ../include/openssl/ecdsa.h ../include/openssl/err.h +s3_clnt.o: ../include/openssl/evp.h ../include/openssl/kssl.h +s3_clnt.o: ../include/openssl/lhash.h ../include/openssl/md5.h +s3_clnt.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s3_clnt.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s3_clnt.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s3_clnt.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s3_clnt.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s3_clnt.o: ../include/openssl/rand.h ../include/openssl/rsa.h +s3_clnt.o: ../include/openssl/safestack.h ../include/openssl/sha.h +s3_clnt.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +s3_clnt.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +s3_clnt.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +s3_clnt.o: ../include/openssl/tls1.h ../include/openssl/x509.h +s3_clnt.o: ../include/openssl/x509_vfy.h kssl_lcl.h s3_clnt.c ssl_locl.h +s3_enc.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s3_enc.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s3_enc.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s3_enc.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s3_enc.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s3_enc.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s3_enc.o: ../include/openssl/err.h ../include/openssl/evp.h +s3_enc.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s3_enc.o: ../include/openssl/md5.h ../include/openssl/obj_mac.h +s3_enc.o: ../include/openssl/objects.h ../include/openssl/opensslconf.h +s3_enc.o: ../include/openssl/opensslv.h ../include/openssl/ossl_typ.h +s3_enc.o: ../include/openssl/pem.h ../include/openssl/pem2.h +s3_enc.o: ../include/openssl/pkcs7.h ../include/openssl/pq_compat.h +s3_enc.o: ../include/openssl/pqueue.h ../include/openssl/rsa.h +s3_enc.o: ../include/openssl/safestack.h ../include/openssl/sha.h +s3_enc.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +s3_enc.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +s3_enc.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +s3_enc.o: ../include/openssl/tls1.h ../include/openssl/x509.h +s3_enc.o: ../include/openssl/x509_vfy.h s3_enc.c ssl_locl.h +s3_lib.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s3_lib.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s3_lib.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s3_lib.o: ../include/openssl/dh.h ../include/openssl/dsa.h +s3_lib.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +s3_lib.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +s3_lib.o: ../include/openssl/ecdsa.h ../include/openssl/err.h +s3_lib.o: ../include/openssl/evp.h ../include/openssl/kssl.h +s3_lib.o: ../include/openssl/lhash.h ../include/openssl/md5.h +s3_lib.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s3_lib.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s3_lib.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s3_lib.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s3_lib.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s3_lib.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +s3_lib.o: ../include/openssl/sha.h ../include/openssl/ssl.h +s3_lib.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +s3_lib.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +s3_lib.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +s3_lib.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h kssl_lcl.h +s3_lib.o: s3_lib.c ssl_locl.h +s3_meth.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s3_meth.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s3_meth.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s3_meth.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s3_meth.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s3_meth.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s3_meth.o: ../include/openssl/err.h ../include/openssl/evp.h +s3_meth.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s3_meth.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s3_meth.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s3_meth.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s3_meth.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s3_meth.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s3_meth.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +s3_meth.o: ../include/openssl/sha.h ../include/openssl/ssl.h +s3_meth.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +s3_meth.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +s3_meth.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +s3_meth.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h s3_meth.c +s3_meth.o: ssl_locl.h +s3_pkt.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s3_pkt.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s3_pkt.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s3_pkt.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +s3_pkt.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +s3_pkt.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +s3_pkt.o: ../include/openssl/err.h ../include/openssl/evp.h +s3_pkt.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s3_pkt.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +s3_pkt.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +s3_pkt.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +s3_pkt.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +s3_pkt.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +s3_pkt.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +s3_pkt.o: ../include/openssl/sha.h ../include/openssl/ssl.h +s3_pkt.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +s3_pkt.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +s3_pkt.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +s3_pkt.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h s3_pkt.c +s3_pkt.o: ssl_locl.h +s3_srvr.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +s3_srvr.o: ../include/openssl/bn.h ../include/openssl/buffer.h +s3_srvr.o: ../include/openssl/comp.h ../include/openssl/crypto.h +s3_srvr.o: ../include/openssl/dh.h ../include/openssl/dsa.h +s3_srvr.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +s3_srvr.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +s3_srvr.o: ../include/openssl/ecdsa.h ../include/openssl/err.h +s3_srvr.o: ../include/openssl/evp.h ../include/openssl/krb5_asn.h +s3_srvr.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +s3_srvr.o: ../include/openssl/md5.h ../include/openssl/obj_mac.h +s3_srvr.o: ../include/openssl/objects.h ../include/openssl/opensslconf.h +s3_srvr.o: ../include/openssl/opensslv.h ../include/openssl/ossl_typ.h +s3_srvr.o: ../include/openssl/pem.h ../include/openssl/pem2.h +s3_srvr.o: ../include/openssl/pkcs7.h ../include/openssl/pq_compat.h +s3_srvr.o: ../include/openssl/pqueue.h ../include/openssl/rand.h +s3_srvr.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +s3_srvr.o: ../include/openssl/sha.h ../include/openssl/ssl.h +s3_srvr.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +s3_srvr.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +s3_srvr.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +s3_srvr.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h kssl_lcl.h +s3_srvr.o: s3_srvr.c ssl_locl.h +ssl_algs.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +ssl_algs.o: ../include/openssl/bn.h ../include/openssl/buffer.h +ssl_algs.o: ../include/openssl/comp.h ../include/openssl/crypto.h +ssl_algs.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +ssl_algs.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +ssl_algs.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +ssl_algs.o: ../include/openssl/err.h ../include/openssl/evp.h +ssl_algs.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +ssl_algs.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +ssl_algs.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +ssl_algs.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +ssl_algs.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +ssl_algs.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +ssl_algs.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +ssl_algs.o: ../include/openssl/sha.h ../include/openssl/ssl.h +ssl_algs.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +ssl_algs.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +ssl_algs.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +ssl_algs.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h ssl_algs.c +ssl_algs.o: ssl_locl.h +ssl_asn1.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/asn1_mac.h +ssl_asn1.o: ../include/openssl/bio.h ../include/openssl/bn.h +ssl_asn1.o: ../include/openssl/buffer.h ../include/openssl/comp.h +ssl_asn1.o: ../include/openssl/crypto.h ../include/openssl/dsa.h +ssl_asn1.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +ssl_asn1.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +ssl_asn1.o: ../include/openssl/ecdsa.h ../include/openssl/err.h +ssl_asn1.o: ../include/openssl/evp.h ../include/openssl/kssl.h +ssl_asn1.o: ../include/openssl/lhash.h ../include/openssl/obj_mac.h +ssl_asn1.o: ../include/openssl/objects.h ../include/openssl/opensslconf.h +ssl_asn1.o: ../include/openssl/opensslv.h ../include/openssl/ossl_typ.h +ssl_asn1.o: ../include/openssl/pem.h ../include/openssl/pem2.h +ssl_asn1.o: ../include/openssl/pkcs7.h ../include/openssl/pq_compat.h +ssl_asn1.o: ../include/openssl/pqueue.h ../include/openssl/rsa.h +ssl_asn1.o: ../include/openssl/safestack.h ../include/openssl/sha.h +ssl_asn1.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +ssl_asn1.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +ssl_asn1.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +ssl_asn1.o: ../include/openssl/tls1.h ../include/openssl/x509.h +ssl_asn1.o: ../include/openssl/x509_vfy.h ssl_asn1.c ssl_locl.h +ssl_cert.o: ../crypto/o_dir.h ../e_os.h ../include/openssl/asn1.h +ssl_cert.o: ../include/openssl/bio.h ../include/openssl/bn.h +ssl_cert.o: ../include/openssl/buffer.h ../include/openssl/comp.h +ssl_cert.o: ../include/openssl/conf.h ../include/openssl/crypto.h +ssl_cert.o: ../include/openssl/dh.h ../include/openssl/dsa.h +ssl_cert.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +ssl_cert.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +ssl_cert.o: ../include/openssl/ecdsa.h ../include/openssl/err.h +ssl_cert.o: ../include/openssl/evp.h ../include/openssl/kssl.h +ssl_cert.o: ../include/openssl/lhash.h ../include/openssl/obj_mac.h +ssl_cert.o: ../include/openssl/objects.h ../include/openssl/opensslconf.h +ssl_cert.o: ../include/openssl/opensslv.h ../include/openssl/ossl_typ.h +ssl_cert.o: ../include/openssl/pem.h ../include/openssl/pem2.h +ssl_cert.o: ../include/openssl/pkcs7.h ../include/openssl/pq_compat.h +ssl_cert.o: ../include/openssl/pqueue.h ../include/openssl/rsa.h +ssl_cert.o: ../include/openssl/safestack.h ../include/openssl/sha.h +ssl_cert.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +ssl_cert.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +ssl_cert.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +ssl_cert.o: ../include/openssl/tls1.h ../include/openssl/x509.h +ssl_cert.o: ../include/openssl/x509_vfy.h ../include/openssl/x509v3.h +ssl_cert.o: ssl_cert.c ssl_locl.h +ssl_ciph.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +ssl_ciph.o: ../include/openssl/bn.h ../include/openssl/buffer.h +ssl_ciph.o: ../include/openssl/comp.h ../include/openssl/crypto.h +ssl_ciph.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +ssl_ciph.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +ssl_ciph.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +ssl_ciph.o: ../include/openssl/err.h ../include/openssl/evp.h +ssl_ciph.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +ssl_ciph.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +ssl_ciph.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +ssl_ciph.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +ssl_ciph.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +ssl_ciph.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +ssl_ciph.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +ssl_ciph.o: ../include/openssl/sha.h ../include/openssl/ssl.h +ssl_ciph.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +ssl_ciph.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +ssl_ciph.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +ssl_ciph.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h ssl_ciph.c +ssl_ciph.o: ssl_locl.h +ssl_err.o: ../include/openssl/asn1.h ../include/openssl/bio.h +ssl_err.o: ../include/openssl/bn.h ../include/openssl/buffer.h +ssl_err.o: ../include/openssl/comp.h ../include/openssl/crypto.h +ssl_err.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +ssl_err.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +ssl_err.o: ../include/openssl/ecdsa.h ../include/openssl/err.h +ssl_err.o: ../include/openssl/evp.h ../include/openssl/kssl.h +ssl_err.o: ../include/openssl/lhash.h ../include/openssl/obj_mac.h +ssl_err.o: ../include/openssl/objects.h ../include/openssl/opensslconf.h +ssl_err.o: ../include/openssl/opensslv.h ../include/openssl/ossl_typ.h +ssl_err.o: ../include/openssl/pem.h ../include/openssl/pem2.h +ssl_err.o: ../include/openssl/pkcs7.h ../include/openssl/pq_compat.h +ssl_err.o: ../include/openssl/pqueue.h ../include/openssl/safestack.h +ssl_err.o: ../include/openssl/sha.h ../include/openssl/ssl.h +ssl_err.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +ssl_err.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +ssl_err.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +ssl_err.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h ssl_err.c +ssl_err2.o: ../include/openssl/asn1.h ../include/openssl/bio.h +ssl_err2.o: ../include/openssl/bn.h ../include/openssl/buffer.h +ssl_err2.o: ../include/openssl/comp.h ../include/openssl/crypto.h +ssl_err2.o: ../include/openssl/dtls1.h ../include/openssl/e_os2.h +ssl_err2.o: ../include/openssl/ec.h ../include/openssl/ecdh.h +ssl_err2.o: ../include/openssl/ecdsa.h ../include/openssl/err.h +ssl_err2.o: ../include/openssl/evp.h ../include/openssl/kssl.h +ssl_err2.o: ../include/openssl/lhash.h ../include/openssl/obj_mac.h +ssl_err2.o: ../include/openssl/objects.h ../include/openssl/opensslconf.h +ssl_err2.o: ../include/openssl/opensslv.h ../include/openssl/ossl_typ.h +ssl_err2.o: ../include/openssl/pem.h ../include/openssl/pem2.h +ssl_err2.o: ../include/openssl/pkcs7.h ../include/openssl/pq_compat.h +ssl_err2.o: ../include/openssl/pqueue.h ../include/openssl/safestack.h +ssl_err2.o: ../include/openssl/sha.h ../include/openssl/ssl.h +ssl_err2.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +ssl_err2.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +ssl_err2.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +ssl_err2.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h ssl_err2.c +ssl_lib.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +ssl_lib.o: ../include/openssl/bn.h ../include/openssl/buffer.h +ssl_lib.o: ../include/openssl/comp.h ../include/openssl/conf.h +ssl_lib.o: ../include/openssl/crypto.h ../include/openssl/dh.h +ssl_lib.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +ssl_lib.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +ssl_lib.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +ssl_lib.o: ../include/openssl/err.h ../include/openssl/evp.h +ssl_lib.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +ssl_lib.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +ssl_lib.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +ssl_lib.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +ssl_lib.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +ssl_lib.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +ssl_lib.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +ssl_lib.o: ../include/openssl/sha.h ../include/openssl/ssl.h +ssl_lib.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +ssl_lib.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +ssl_lib.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +ssl_lib.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h +ssl_lib.o: ../include/openssl/x509v3.h kssl_lcl.h ssl_lib.c ssl_locl.h +ssl_rsa.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +ssl_rsa.o: ../include/openssl/bn.h ../include/openssl/buffer.h +ssl_rsa.o: ../include/openssl/comp.h ../include/openssl/crypto.h +ssl_rsa.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +ssl_rsa.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +ssl_rsa.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +ssl_rsa.o: ../include/openssl/err.h ../include/openssl/evp.h +ssl_rsa.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +ssl_rsa.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +ssl_rsa.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +ssl_rsa.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +ssl_rsa.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +ssl_rsa.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +ssl_rsa.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +ssl_rsa.o: ../include/openssl/sha.h ../include/openssl/ssl.h +ssl_rsa.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +ssl_rsa.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +ssl_rsa.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +ssl_rsa.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h ssl_locl.h +ssl_rsa.o: ssl_rsa.c +ssl_sess.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +ssl_sess.o: ../include/openssl/bn.h ../include/openssl/buffer.h +ssl_sess.o: ../include/openssl/comp.h ../include/openssl/crypto.h +ssl_sess.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +ssl_sess.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +ssl_sess.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +ssl_sess.o: ../include/openssl/err.h ../include/openssl/evp.h +ssl_sess.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +ssl_sess.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +ssl_sess.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +ssl_sess.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +ssl_sess.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +ssl_sess.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +ssl_sess.o: ../include/openssl/rand.h ../include/openssl/rsa.h +ssl_sess.o: ../include/openssl/safestack.h ../include/openssl/sha.h +ssl_sess.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +ssl_sess.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +ssl_sess.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +ssl_sess.o: ../include/openssl/tls1.h ../include/openssl/x509.h +ssl_sess.o: ../include/openssl/x509_vfy.h ssl_locl.h ssl_sess.c +ssl_stat.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +ssl_stat.o: ../include/openssl/bn.h ../include/openssl/buffer.h +ssl_stat.o: ../include/openssl/comp.h ../include/openssl/crypto.h +ssl_stat.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +ssl_stat.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +ssl_stat.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +ssl_stat.o: ../include/openssl/err.h ../include/openssl/evp.h +ssl_stat.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +ssl_stat.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +ssl_stat.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +ssl_stat.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +ssl_stat.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +ssl_stat.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +ssl_stat.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +ssl_stat.o: ../include/openssl/sha.h ../include/openssl/ssl.h +ssl_stat.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +ssl_stat.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +ssl_stat.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +ssl_stat.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h ssl_locl.h +ssl_stat.o: ssl_stat.c +ssl_txt.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +ssl_txt.o: ../include/openssl/bn.h ../include/openssl/buffer.h +ssl_txt.o: ../include/openssl/comp.h ../include/openssl/crypto.h +ssl_txt.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +ssl_txt.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +ssl_txt.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +ssl_txt.o: ../include/openssl/err.h ../include/openssl/evp.h +ssl_txt.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +ssl_txt.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +ssl_txt.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +ssl_txt.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +ssl_txt.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +ssl_txt.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +ssl_txt.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +ssl_txt.o: ../include/openssl/sha.h ../include/openssl/ssl.h +ssl_txt.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +ssl_txt.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +ssl_txt.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +ssl_txt.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h ssl_locl.h +ssl_txt.o: ssl_txt.c +t1_clnt.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +t1_clnt.o: ../include/openssl/bn.h ../include/openssl/buffer.h +t1_clnt.o: ../include/openssl/comp.h ../include/openssl/crypto.h +t1_clnt.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +t1_clnt.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +t1_clnt.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +t1_clnt.o: ../include/openssl/err.h ../include/openssl/evp.h +t1_clnt.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +t1_clnt.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +t1_clnt.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +t1_clnt.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +t1_clnt.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +t1_clnt.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +t1_clnt.o: ../include/openssl/rand.h ../include/openssl/rsa.h +t1_clnt.o: ../include/openssl/safestack.h ../include/openssl/sha.h +t1_clnt.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +t1_clnt.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +t1_clnt.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +t1_clnt.o: ../include/openssl/tls1.h ../include/openssl/x509.h +t1_clnt.o: ../include/openssl/x509_vfy.h ssl_locl.h t1_clnt.c +t1_enc.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +t1_enc.o: ../include/openssl/bn.h ../include/openssl/buffer.h +t1_enc.o: ../include/openssl/comp.h ../include/openssl/crypto.h +t1_enc.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +t1_enc.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +t1_enc.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +t1_enc.o: ../include/openssl/err.h ../include/openssl/evp.h +t1_enc.o: ../include/openssl/hmac.h ../include/openssl/kssl.h +t1_enc.o: ../include/openssl/lhash.h ../include/openssl/md5.h +t1_enc.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +t1_enc.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +t1_enc.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +t1_enc.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +t1_enc.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +t1_enc.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +t1_enc.o: ../include/openssl/sha.h ../include/openssl/ssl.h +t1_enc.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +t1_enc.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +t1_enc.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +t1_enc.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h ssl_locl.h +t1_enc.o: t1_enc.c +t1_lib.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +t1_lib.o: ../include/openssl/bn.h ../include/openssl/buffer.h +t1_lib.o: ../include/openssl/comp.h ../include/openssl/crypto.h +t1_lib.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +t1_lib.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +t1_lib.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +t1_lib.o: ../include/openssl/err.h ../include/openssl/evp.h +t1_lib.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +t1_lib.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +t1_lib.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +t1_lib.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +t1_lib.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +t1_lib.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +t1_lib.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +t1_lib.o: ../include/openssl/sha.h ../include/openssl/ssl.h +t1_lib.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +t1_lib.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +t1_lib.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +t1_lib.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h ssl_locl.h +t1_lib.o: t1_lib.c +t1_meth.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +t1_meth.o: ../include/openssl/bn.h ../include/openssl/buffer.h +t1_meth.o: ../include/openssl/comp.h ../include/openssl/crypto.h +t1_meth.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +t1_meth.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +t1_meth.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +t1_meth.o: ../include/openssl/err.h ../include/openssl/evp.h +t1_meth.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +t1_meth.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +t1_meth.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +t1_meth.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +t1_meth.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +t1_meth.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +t1_meth.o: ../include/openssl/rsa.h ../include/openssl/safestack.h +t1_meth.o: ../include/openssl/sha.h ../include/openssl/ssl.h +t1_meth.o: ../include/openssl/ssl2.h ../include/openssl/ssl23.h +t1_meth.o: ../include/openssl/ssl3.h ../include/openssl/stack.h +t1_meth.o: ../include/openssl/symhacks.h ../include/openssl/tls1.h +t1_meth.o: ../include/openssl/x509.h ../include/openssl/x509_vfy.h ssl_locl.h +t1_meth.o: t1_meth.c +t1_srvr.o: ../e_os.h ../include/openssl/asn1.h ../include/openssl/bio.h +t1_srvr.o: ../include/openssl/bn.h ../include/openssl/buffer.h +t1_srvr.o: ../include/openssl/comp.h ../include/openssl/crypto.h +t1_srvr.o: ../include/openssl/dsa.h ../include/openssl/dtls1.h +t1_srvr.o: ../include/openssl/e_os2.h ../include/openssl/ec.h +t1_srvr.o: ../include/openssl/ecdh.h ../include/openssl/ecdsa.h +t1_srvr.o: ../include/openssl/err.h ../include/openssl/evp.h +t1_srvr.o: ../include/openssl/kssl.h ../include/openssl/lhash.h +t1_srvr.o: ../include/openssl/obj_mac.h ../include/openssl/objects.h +t1_srvr.o: ../include/openssl/opensslconf.h ../include/openssl/opensslv.h +t1_srvr.o: ../include/openssl/ossl_typ.h ../include/openssl/pem.h +t1_srvr.o: ../include/openssl/pem2.h ../include/openssl/pkcs7.h +t1_srvr.o: ../include/openssl/pq_compat.h ../include/openssl/pqueue.h +t1_srvr.o: ../include/openssl/rand.h ../include/openssl/rsa.h +t1_srvr.o: ../include/openssl/safestack.h ../include/openssl/sha.h +t1_srvr.o: ../include/openssl/ssl.h ../include/openssl/ssl2.h +t1_srvr.o: ../include/openssl/ssl23.h ../include/openssl/ssl3.h +t1_srvr.o: ../include/openssl/stack.h ../include/openssl/symhacks.h +t1_srvr.o: ../include/openssl/tls1.h ../include/openssl/x509.h +t1_srvr.o: ../include/openssl/x509_vfy.h ssl_locl.h t1_srvr.c diff --git a/ssl/bio_ssl.c b/ssl/bio_ssl.c new file mode 100644 index 000000000000..420deb7fc966 --- /dev/null +++ b/ssl/bio_ssl.c @@ -0,0 +1,598 @@ +/* ssl/bio_ssl.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <openssl/crypto.h> +#include <openssl/bio.h> +#include <openssl/err.h> +#include <openssl/ssl.h> + +static int ssl_write(BIO *h, const char *buf, int num); +static int ssl_read(BIO *h, char *buf, int size); +static int ssl_puts(BIO *h, const char *str); +static long ssl_ctrl(BIO *h, int cmd, long arg1, void *arg2); +static int ssl_new(BIO *h); +static int ssl_free(BIO *data); +static long ssl_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp); +typedef struct bio_ssl_st + { + SSL *ssl; /* The ssl handle :-) */ + /* re-negotiate every time the total number of bytes is this size */ + int num_renegotiates; + unsigned long renegotiate_count; + unsigned long byte_count; + unsigned long renegotiate_timeout; + unsigned long last_time; + } BIO_SSL; + +static BIO_METHOD methods_sslp= + { + BIO_TYPE_SSL,"ssl", + ssl_write, + ssl_read, + ssl_puts, + NULL, /* ssl_gets, */ + ssl_ctrl, + ssl_new, + ssl_free, + ssl_callback_ctrl, + }; + +BIO_METHOD *BIO_f_ssl(void) + { + return(&methods_sslp); + } + +static int ssl_new(BIO *bi) + { + BIO_SSL *bs; + + bs=(BIO_SSL *)OPENSSL_malloc(sizeof(BIO_SSL)); + if (bs == NULL) + { + BIOerr(BIO_F_SSL_NEW,ERR_R_MALLOC_FAILURE); + return(0); + } + memset(bs,0,sizeof(BIO_SSL)); + bi->init=0; + bi->ptr=(char *)bs; + bi->flags=0; + return(1); + } + +static int ssl_free(BIO *a) + { + BIO_SSL *bs; + + if (a == NULL) return(0); + bs=(BIO_SSL *)a->ptr; + if (bs->ssl != NULL) SSL_shutdown(bs->ssl); + if (a->shutdown) + { + if (a->init && (bs->ssl != NULL)) + SSL_free(bs->ssl); + a->init=0; + a->flags=0; + } + if (a->ptr != NULL) + OPENSSL_free(a->ptr); + return(1); + } + +static int ssl_read(BIO *b, char *out, int outl) + { + int ret=1; + BIO_SSL *sb; + SSL *ssl; + int retry_reason=0; + int r=0; + + if (out == NULL) return(0); + sb=(BIO_SSL *)b->ptr; + ssl=sb->ssl; + + BIO_clear_retry_flags(b); + +#if 0 + if (!SSL_is_init_finished(ssl)) + { +/* ret=SSL_do_handshake(ssl); */ + if (ret > 0) + { + + outflags=(BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY); + ret= -1; + goto end; + } + } +#endif +/* if (ret > 0) */ + ret=SSL_read(ssl,out,outl); + + switch (SSL_get_error(ssl,ret)) + { + case SSL_ERROR_NONE: + if (ret <= 0) break; + if (sb->renegotiate_count > 0) + { + sb->byte_count+=ret; + if (sb->byte_count > sb->renegotiate_count) + { + sb->byte_count=0; + sb->num_renegotiates++; + SSL_renegotiate(ssl); + r=1; + } + } + if ((sb->renegotiate_timeout > 0) && (!r)) + { + unsigned long tm; + + tm=(unsigned long)time(NULL); + if (tm > sb->last_time+sb->renegotiate_timeout) + { + sb->last_time=tm; + sb->num_renegotiates++; + SSL_renegotiate(ssl); + } + } + + break; + case SSL_ERROR_WANT_READ: + BIO_set_retry_read(b); + break; + case SSL_ERROR_WANT_WRITE: + BIO_set_retry_write(b); + break; + case SSL_ERROR_WANT_X509_LOOKUP: + BIO_set_retry_special(b); + retry_reason=BIO_RR_SSL_X509_LOOKUP; + break; + case SSL_ERROR_WANT_ACCEPT: + BIO_set_retry_special(b); + retry_reason=BIO_RR_ACCEPT; + break; + case SSL_ERROR_WANT_CONNECT: + BIO_set_retry_special(b); + retry_reason=BIO_RR_CONNECT; + break; + case SSL_ERROR_SYSCALL: + case SSL_ERROR_SSL: + case SSL_ERROR_ZERO_RETURN: + default: + break; + } + + b->retry_reason=retry_reason; + return(ret); + } + +static int ssl_write(BIO *b, const char *out, int outl) + { + int ret,r=0; + int retry_reason=0; + SSL *ssl; + BIO_SSL *bs; + + if (out == NULL) return(0); + bs=(BIO_SSL *)b->ptr; + ssl=bs->ssl; + + BIO_clear_retry_flags(b); + +/* ret=SSL_do_handshake(ssl); + if (ret > 0) */ + ret=SSL_write(ssl,out,outl); + + switch (SSL_get_error(ssl,ret)) + { + case SSL_ERROR_NONE: + if (ret <= 0) break; + if (bs->renegotiate_count > 0) + { + bs->byte_count+=ret; + if (bs->byte_count > bs->renegotiate_count) + { + bs->byte_count=0; + bs->num_renegotiates++; + SSL_renegotiate(ssl); + r=1; + } + } + if ((bs->renegotiate_timeout > 0) && (!r)) + { + unsigned long tm; + + tm=(unsigned long)time(NULL); + if (tm > bs->last_time+bs->renegotiate_timeout) + { + bs->last_time=tm; + bs->num_renegotiates++; + SSL_renegotiate(ssl); + } + } + break; + case SSL_ERROR_WANT_WRITE: + BIO_set_retry_write(b); + break; + case SSL_ERROR_WANT_READ: + BIO_set_retry_read(b); + break; + case SSL_ERROR_WANT_X509_LOOKUP: + BIO_set_retry_special(b); + retry_reason=BIO_RR_SSL_X509_LOOKUP; + break; + case SSL_ERROR_WANT_CONNECT: + BIO_set_retry_special(b); + retry_reason=BIO_RR_CONNECT; + case SSL_ERROR_SYSCALL: + case SSL_ERROR_SSL: + default: + break; + } + + b->retry_reason=retry_reason; + return(ret); + } + +static long ssl_ctrl(BIO *b, int cmd, long num, void *ptr) + { + SSL **sslp,*ssl; + BIO_SSL *bs; + BIO *dbio,*bio; + long ret=1; + + bs=(BIO_SSL *)b->ptr; + ssl=bs->ssl; + if ((ssl == NULL) && (cmd != BIO_C_SET_SSL)) + return(0); + switch (cmd) + { + case BIO_CTRL_RESET: + SSL_shutdown(ssl); + + if (ssl->handshake_func == ssl->method->ssl_connect) + SSL_set_connect_state(ssl); + else if (ssl->handshake_func == ssl->method->ssl_accept) + SSL_set_accept_state(ssl); + + SSL_clear(ssl); + + if (b->next_bio != NULL) + ret=BIO_ctrl(b->next_bio,cmd,num,ptr); + else if (ssl->rbio != NULL) + ret=BIO_ctrl(ssl->rbio,cmd,num,ptr); + else + ret=1; + break; + case BIO_CTRL_INFO: + ret=0; + break; + case BIO_C_SSL_MODE: + if (num) /* client mode */ + SSL_set_connect_state(ssl); + else + SSL_set_accept_state(ssl); + break; + case BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT: + ret=bs->renegotiate_timeout; + if (num < 60) num=5; + bs->renegotiate_timeout=(unsigned long)num; + bs->last_time=(unsigned long)time(NULL); + break; + case BIO_C_SET_SSL_RENEGOTIATE_BYTES: + ret=bs->renegotiate_count; + if ((long)num >=512) + bs->renegotiate_count=(unsigned long)num; + break; + case BIO_C_GET_SSL_NUM_RENEGOTIATES: + ret=bs->num_renegotiates; + break; + case BIO_C_SET_SSL: + if (ssl != NULL) + ssl_free(b); + b->shutdown=(int)num; + ssl=(SSL *)ptr; + ((BIO_SSL *)b->ptr)->ssl=ssl; + bio=SSL_get_rbio(ssl); + if (bio != NULL) + { + if (b->next_bio != NULL) + BIO_push(bio,b->next_bio); + b->next_bio=bio; + CRYPTO_add(&bio->references,1,CRYPTO_LOCK_BIO); + } + b->init=1; + break; + case BIO_C_GET_SSL: + if (ptr != NULL) + { + sslp=(SSL **)ptr; + *sslp=ssl; + } + else + ret=0; + break; + case BIO_CTRL_GET_CLOSE: + ret=b->shutdown; + break; + case BIO_CTRL_SET_CLOSE: + b->shutdown=(int)num; + break; + case BIO_CTRL_WPENDING: + ret=BIO_ctrl(ssl->wbio,cmd,num,ptr); + break; + case BIO_CTRL_PENDING: + ret=SSL_pending(ssl); + if (ret == 0) + ret=BIO_pending(ssl->rbio); + break; + case BIO_CTRL_FLUSH: + BIO_clear_retry_flags(b); + ret=BIO_ctrl(ssl->wbio,cmd,num,ptr); + BIO_copy_next_retry(b); + break; + case BIO_CTRL_PUSH: + if ((b->next_bio != NULL) && (b->next_bio != ssl->rbio)) + { + SSL_set_bio(ssl,b->next_bio,b->next_bio); + CRYPTO_add(&b->next_bio->references,1,CRYPTO_LOCK_BIO); + } + break; + case BIO_CTRL_POP: + /* ugly bit of a hack */ + if (ssl->rbio != ssl->wbio) /* we are in trouble :-( */ + { + BIO_free_all(ssl->wbio); + } + if (b->next_bio != NULL) + { + CRYPTO_add(&b->next_bio->references,1,CRYPTO_LOCK_BIO); + } + ssl->wbio=NULL; + ssl->rbio=NULL; + break; + case BIO_C_DO_STATE_MACHINE: + BIO_clear_retry_flags(b); + + b->retry_reason=0; + ret=(int)SSL_do_handshake(ssl); + + switch (SSL_get_error(ssl,(int)ret)) + { + case SSL_ERROR_WANT_READ: + BIO_set_flags(b, + BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY); + break; + case SSL_ERROR_WANT_WRITE: + BIO_set_flags(b, + BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY); + break; + case SSL_ERROR_WANT_CONNECT: + BIO_set_flags(b, + BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY); + b->retry_reason=b->next_bio->retry_reason; + break; + default: + break; + } + break; + case BIO_CTRL_DUP: + dbio=(BIO *)ptr; + if (((BIO_SSL *)dbio->ptr)->ssl != NULL) + SSL_free(((BIO_SSL *)dbio->ptr)->ssl); + ((BIO_SSL *)dbio->ptr)->ssl=SSL_dup(ssl); + ((BIO_SSL *)dbio->ptr)->renegotiate_count= + ((BIO_SSL *)b->ptr)->renegotiate_count; + ((BIO_SSL *)dbio->ptr)->byte_count= + ((BIO_SSL *)b->ptr)->byte_count; + ((BIO_SSL *)dbio->ptr)->renegotiate_timeout= + ((BIO_SSL *)b->ptr)->renegotiate_timeout; + ((BIO_SSL *)dbio->ptr)->last_time= + ((BIO_SSL *)b->ptr)->last_time; + ret=(((BIO_SSL *)dbio->ptr)->ssl != NULL); + break; + case BIO_C_GET_FD: + ret=BIO_ctrl(ssl->rbio,cmd,num,ptr); + break; + case BIO_CTRL_SET_CALLBACK: + { +#if 0 /* FIXME: Should this be used? -- Richard Levitte */ + SSLerr(SSL_F_SSL_CTRL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + ret = -1; +#else + ret=0; +#endif + } + break; + case BIO_CTRL_GET_CALLBACK: + { + void (**fptr)(const SSL *xssl,int type,int val); + + fptr=(void (**)(const SSL *xssl,int type,int val))ptr; + *fptr=SSL_get_info_callback(ssl); + } + break; + default: + ret=BIO_ctrl(ssl->rbio,cmd,num,ptr); + break; + } + return(ret); + } + +static long ssl_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp) + { + SSL *ssl; + BIO_SSL *bs; + long ret=1; + + bs=(BIO_SSL *)b->ptr; + ssl=bs->ssl; + switch (cmd) + { + case BIO_CTRL_SET_CALLBACK: + { + /* FIXME: setting this via a completely different prototype + seems like a crap idea */ + SSL_set_info_callback(ssl,(void (*)(const SSL *,int,int))fp); + } + break; + default: + ret=BIO_callback_ctrl(ssl->rbio,cmd,fp); + break; + } + return(ret); + } + +static int ssl_puts(BIO *bp, const char *str) + { + int n,ret; + + n=strlen(str); + ret=BIO_write(bp,str,n); + return(ret); + } + +BIO *BIO_new_buffer_ssl_connect(SSL_CTX *ctx) + { +#ifndef OPENSSL_NO_SOCK + BIO *ret=NULL,*buf=NULL,*ssl=NULL; + + if ((buf=BIO_new(BIO_f_buffer())) == NULL) + return(NULL); + if ((ssl=BIO_new_ssl_connect(ctx)) == NULL) + goto err; + if ((ret=BIO_push(buf,ssl)) == NULL) + goto err; + return(ret); +err: + if (buf != NULL) BIO_free(buf); + if (ssl != NULL) BIO_free(ssl); +#endif + return(NULL); + } + +BIO *BIO_new_ssl_connect(SSL_CTX *ctx) + { + BIO *ret=NULL,*con=NULL,*ssl=NULL; + + if ((con=BIO_new(BIO_s_connect())) == NULL) + return(NULL); + if ((ssl=BIO_new_ssl(ctx,1)) == NULL) + goto err; + if ((ret=BIO_push(ssl,con)) == NULL) + goto err; + return(ret); +err: + if (con != NULL) BIO_free(con); + if (ret != NULL) BIO_free(ret); + return(NULL); + } + +BIO *BIO_new_ssl(SSL_CTX *ctx, int client) + { + BIO *ret; + SSL *ssl; + + if ((ret=BIO_new(BIO_f_ssl())) == NULL) + return(NULL); + if ((ssl=SSL_new(ctx)) == NULL) + { + BIO_free(ret); + return(NULL); + } + if (client) + SSL_set_connect_state(ssl); + else + SSL_set_accept_state(ssl); + + BIO_set_ssl(ret,ssl,BIO_CLOSE); + return(ret); + } + +int BIO_ssl_copy_session_id(BIO *t, BIO *f) + { + t=BIO_find_type(t,BIO_TYPE_SSL); + f=BIO_find_type(f,BIO_TYPE_SSL); + if ((t == NULL) || (f == NULL)) + return(0); + if ( (((BIO_SSL *)t->ptr)->ssl == NULL) || + (((BIO_SSL *)f->ptr)->ssl == NULL)) + return(0); + SSL_copy_session_id(((BIO_SSL *)t->ptr)->ssl,((BIO_SSL *)f->ptr)->ssl); + return(1); + } + +void BIO_ssl_shutdown(BIO *b) + { + SSL *s; + + while (b != NULL) + { + if (b->method->type == BIO_TYPE_SSL) + { + s=((BIO_SSL *)b->ptr)->ssl; + SSL_shutdown(s); + break; + } + b=b->next_bio; + } + } diff --git a/ssl/d1_both.c b/ssl/d1_both.c new file mode 100644 index 000000000000..22bd28a4bb0b --- /dev/null +++ b/ssl/d1_both.c @@ -0,0 +1,1191 @@ +/* ssl/d1_both.c */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <limits.h> +#include <string.h> +#include <stdio.h> +#include "ssl_locl.h" +#include <openssl/buffer.h> +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/evp.h> +#include <openssl/x509.h> + + +/* XDTLS: figure out the right values */ +static unsigned int g_probable_mtu[] = {1500 - 28, 512 - 28, 256 - 28}; + +static unsigned int dtls1_min_mtu(void); +static unsigned int dtls1_guess_mtu(unsigned int curr_mtu); +static void dtls1_fix_message_header(SSL *s, unsigned long frag_off, + unsigned long frag_len); +static unsigned char *dtls1_write_message_header(SSL *s, + unsigned char *p); +static void dtls1_set_message_header_int(SSL *s, unsigned char mt, + unsigned long len, unsigned short seq_num, unsigned long frag_off, + unsigned long frag_len); +static int dtls1_retransmit_buffered_messages(SSL *s); +static long dtls1_get_message_fragment(SSL *s, int st1, int stn, + long max, int *ok); + +static hm_fragment * +dtls1_hm_fragment_new(unsigned long frag_len) + { + hm_fragment *frag = NULL; + unsigned char *buf = NULL; + + frag = (hm_fragment *)OPENSSL_malloc(sizeof(hm_fragment)); + if ( frag == NULL) + return NULL; + + if (frag_len) + { + buf = (unsigned char *)OPENSSL_malloc(frag_len); + if ( buf == NULL) + { + OPENSSL_free(frag); + return NULL; + } + } + + /* zero length fragment gets zero frag->fragment */ + frag->fragment = buf; + + return frag; + } + +static void +dtls1_hm_fragment_free(hm_fragment *frag) + { + if (frag->fragment) OPENSSL_free(frag->fragment); + OPENSSL_free(frag); + } + +/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */ +int dtls1_do_write(SSL *s, int type) + { + int ret; + int curr_mtu; + unsigned int len, frag_off; + + /* AHA! Figure out the MTU, and stick to the right size */ + if ( ! (SSL_get_options(s) & SSL_OP_NO_QUERY_MTU)) + { + s->d1->mtu = + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_QUERY_MTU, 0, NULL); + + /* I've seen the kernel return bogus numbers when it doesn't know + * (initial write), so just make sure we have a reasonable number */ + if ( s->d1->mtu < dtls1_min_mtu()) + { + s->d1->mtu = 0; + s->d1->mtu = dtls1_guess_mtu(s->d1->mtu); + BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SET_MTU, + s->d1->mtu, NULL); + } + } +#if 0 + mtu = s->d1->mtu; + + fprintf(stderr, "using MTU = %d\n", mtu); + + mtu -= (DTLS1_HM_HEADER_LENGTH + DTLS1_RT_HEADER_LENGTH); + + curr_mtu = mtu - BIO_wpending(SSL_get_wbio(s)); + + if ( curr_mtu > 0) + mtu = curr_mtu; + else if ( ( ret = BIO_flush(SSL_get_wbio(s))) <= 0) + return ret; + + if ( BIO_wpending(SSL_get_wbio(s)) + s->init_num >= mtu) + { + ret = BIO_flush(SSL_get_wbio(s)); + if ( ret <= 0) + return ret; + mtu = s->d1->mtu - (DTLS1_HM_HEADER_LENGTH + DTLS1_RT_HEADER_LENGTH); + } + + OPENSSL_assert(mtu > 0); /* should have something reasonable now */ + +#endif + + if ( s->init_off == 0 && type == SSL3_RT_HANDSHAKE) + OPENSSL_assert(s->init_num == + (int)s->d1->w_msg_hdr.msg_len + DTLS1_HM_HEADER_LENGTH); + + frag_off = 0; + while( s->init_num) + { + curr_mtu = s->d1->mtu - BIO_wpending(SSL_get_wbio(s)) - + DTLS1_RT_HEADER_LENGTH; + + if ( curr_mtu <= DTLS1_HM_HEADER_LENGTH) + { + /* grr.. we could get an error if MTU picked was wrong */ + ret = BIO_flush(SSL_get_wbio(s)); + if ( ret <= 0) + return ret; + curr_mtu = s->d1->mtu - DTLS1_RT_HEADER_LENGTH; + } + + if ( s->init_num > curr_mtu) + len = curr_mtu; + else + len = s->init_num; + + + /* XDTLS: this function is too long. split out the CCS part */ + if ( type == SSL3_RT_HANDSHAKE) + { + if ( s->init_off != 0) + { + OPENSSL_assert(s->init_off > DTLS1_HM_HEADER_LENGTH); + s->init_off -= DTLS1_HM_HEADER_LENGTH; + s->init_num += DTLS1_HM_HEADER_LENGTH; + + /* write atleast DTLS1_HM_HEADER_LENGTH bytes */ + if ( len <= DTLS1_HM_HEADER_LENGTH) + len += DTLS1_HM_HEADER_LENGTH; + } + + dtls1_fix_message_header(s, frag_off, + len - DTLS1_HM_HEADER_LENGTH); + + dtls1_write_message_header(s, (unsigned char *)&s->init_buf->data[s->init_off]); + + OPENSSL_assert(len >= DTLS1_HM_HEADER_LENGTH); + } + + ret=dtls1_write_bytes(s,type,&s->init_buf->data[s->init_off], + len); + if (ret < 0) + { + /* might need to update MTU here, but we don't know + * which previous packet caused the failure -- so can't + * really retransmit anything. continue as if everything + * is fine and wait for an alert to handle the + * retransmit + */ + if ( BIO_ctrl(SSL_get_wbio(s), + BIO_CTRL_DGRAM_MTU_EXCEEDED, 0, NULL)) + s->d1->mtu = BIO_ctrl(SSL_get_wbio(s), + BIO_CTRL_DGRAM_QUERY_MTU, 0, NULL); + else + return(-1); + } + else + { + + /* bad if this assert fails, only part of the handshake + * message got sent. but why would this happen? */ + OPENSSL_assert(len == (unsigned int)ret); + + if (type == SSL3_RT_HANDSHAKE && ! s->d1->retransmitting) + { + /* should not be done for 'Hello Request's, but in that case + * we'll ignore the result anyway */ + unsigned char *p = &s->init_buf->data[s->init_off]; + const struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr; + int len; + + if (frag_off == 0 && s->client_version != DTLS1_BAD_VER) + { + /* reconstruct message header is if it + * is being sent in single fragment */ + *p++ = msg_hdr->type; + l2n3(msg_hdr->msg_len,p); + s2n (msg_hdr->seq,p); + l2n3(0,p); + l2n3(msg_hdr->msg_len,p); + p -= DTLS1_HM_HEADER_LENGTH; + len = ret; + } + else + { + p += DTLS1_HM_HEADER_LENGTH; + len = ret - DTLS1_HM_HEADER_LENGTH; + } + + ssl3_finish_mac(s, p, len); + } + + if (ret == s->init_num) + { + if (s->msg_callback) + s->msg_callback(1, s->version, type, s->init_buf->data, + (size_t)(s->init_off + s->init_num), s, + s->msg_callback_arg); + + s->init_off = 0; /* done writing this message */ + s->init_num = 0; + + return(1); + } + s->init_off+=ret; + s->init_num-=ret; + frag_off += (ret -= DTLS1_HM_HEADER_LENGTH); + } + } + return(0); + } + + +/* Obtain handshake message of message type 'mt' (any if mt == -1), + * maximum acceptable body length 'max'. + * Read an entire handshake message. Handshake messages arrive in + * fragments. + */ +long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok) + { + int i, al; + struct hm_header_st *msg_hdr; + + /* s3->tmp is used to store messages that are unexpected, caused + * by the absence of an optional handshake message */ + if (s->s3->tmp.reuse_message) + { + s->s3->tmp.reuse_message=0; + if ((mt >= 0) && (s->s3->tmp.message_type != mt)) + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_DTLS1_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE); + goto f_err; + } + *ok=1; + s->init_msg = s->init_buf->data + DTLS1_HM_HEADER_LENGTH; + s->init_num = (int)s->s3->tmp.message_size; + return s->init_num; + } + + msg_hdr = &s->d1->r_msg_hdr; + do + { + if ( msg_hdr->frag_off == 0) + { + /* s->d1->r_message_header.msg_len = 0; */ + memset(msg_hdr, 0x00, sizeof(struct hm_header_st)); + } + + i = dtls1_get_message_fragment(s, st1, stn, max, ok); + if ( i == DTLS1_HM_BAD_FRAGMENT || + i == DTLS1_HM_FRAGMENT_RETRY) /* bad fragment received */ + continue; + else if ( i <= 0 && !*ok) + return i; + + /* Note that s->init_sum is used as a counter summing + * up fragments' lengths: as soon as they sum up to + * handshake packet length, we assume we have got all + * the fragments. Overlapping fragments would cause + * premature termination, so we don't expect overlaps. + * Well, handling overlaps would require something more + * drastic. Indeed, as it is now there is no way to + * tell if out-of-order fragment from the middle was + * the last. '>=' is the best/least we can do to control + * the potential damage caused by malformed overlaps. */ + if ((unsigned int)s->init_num >= msg_hdr->msg_len) + { + unsigned char *p = s->init_buf->data; + unsigned long msg_len = msg_hdr->msg_len; + + /* reconstruct message header as if it was + * sent in single fragment */ + *(p++) = msg_hdr->type; + l2n3(msg_len,p); + s2n (msg_hdr->seq,p); + l2n3(0,p); + l2n3(msg_len,p); + if (s->client_version != DTLS1_BAD_VER) + p -= DTLS1_HM_HEADER_LENGTH, + msg_len += DTLS1_HM_HEADER_LENGTH; + + ssl3_finish_mac(s, p, msg_len); + if (s->msg_callback) + s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, + p, msg_len, + s, s->msg_callback_arg); + + memset(msg_hdr, 0x00, sizeof(struct hm_header_st)); + + s->d1->handshake_read_seq++; + /* we just read a handshake message from the other side: + * this means that we don't need to retransmit of the + * buffered messages. + * XDTLS: may be able clear out this + * buffer a little sooner (i.e if an out-of-order + * handshake message/record is received at the record + * layer. + * XDTLS: exception is that the server needs to + * know that change cipher spec and finished messages + * have been received by the client before clearing this + * buffer. this can simply be done by waiting for the + * first data segment, but is there a better way? */ + dtls1_clear_record_buffer(s); + + s->init_msg = s->init_buf->data + DTLS1_HM_HEADER_LENGTH; + return s->init_num; + } + else + msg_hdr->frag_off = i; + } while(1) ; + +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); + *ok = 0; + return -1; + } + + +static int dtls1_preprocess_fragment(SSL *s,struct hm_header_st *msg_hdr,int max) + { + size_t frag_off,frag_len,msg_len; + + msg_len = msg_hdr->msg_len; + frag_off = msg_hdr->frag_off; + frag_len = msg_hdr->frag_len; + + /* sanity checking */ + if ( (frag_off+frag_len) > msg_len) + { + SSLerr(SSL_F_DTLS1_PREPROCESS_FRAGMENT,SSL_R_EXCESSIVE_MESSAGE_SIZE); + return SSL_AD_ILLEGAL_PARAMETER; + } + + if ( (frag_off+frag_len) > (unsigned long)max) + { + SSLerr(SSL_F_DTLS1_PREPROCESS_FRAGMENT,SSL_R_EXCESSIVE_MESSAGE_SIZE); + return SSL_AD_ILLEGAL_PARAMETER; + } + + if ( s->d1->r_msg_hdr.frag_off == 0) /* first fragment */ + { + /* msg_len is limited to 2^24, but is effectively checked + * against max above */ + if (!BUF_MEM_grow_clean(s->init_buf,(int)msg_len+DTLS1_HM_HEADER_LENGTH)) + { + SSLerr(SSL_F_DTLS1_PREPROCESS_FRAGMENT,ERR_R_BUF_LIB); + return SSL_AD_INTERNAL_ERROR; + } + + s->s3->tmp.message_size = msg_len; + s->d1->r_msg_hdr.msg_len = msg_len; + s->s3->tmp.message_type = msg_hdr->type; + s->d1->r_msg_hdr.type = msg_hdr->type; + s->d1->r_msg_hdr.seq = msg_hdr->seq; + } + else if (msg_len != s->d1->r_msg_hdr.msg_len) + { + /* They must be playing with us! BTW, failure to enforce + * upper limit would open possibility for buffer overrun. */ + SSLerr(SSL_F_DTLS1_PREPROCESS_FRAGMENT,SSL_R_EXCESSIVE_MESSAGE_SIZE); + return SSL_AD_ILLEGAL_PARAMETER; + } + + return 0; /* no error */ + } + + +static int +dtls1_retrieve_buffered_fragment(SSL *s, long max, int *ok) + { + /* (0) check whether the desired fragment is available + * if so: + * (1) copy over the fragment to s->init_buf->data[] + * (2) update s->init_num + */ + pitem *item; + hm_fragment *frag; + int al; + + *ok = 0; + item = pqueue_peek(s->d1->buffered_messages); + if ( item == NULL) + return 0; + + frag = (hm_fragment *)item->data; + + if ( s->d1->handshake_read_seq == frag->msg_header.seq) + { + pqueue_pop(s->d1->buffered_messages); + + al=dtls1_preprocess_fragment(s,&frag->msg_header,max); + + if (al==0) /* no alert */ + { + unsigned char *p = s->init_buf->data+DTLS1_HM_HEADER_LENGTH; + memcpy(&p[frag->msg_header.frag_off], + frag->fragment,frag->msg_header.frag_len); + } + + dtls1_hm_fragment_free(frag); + pitem_free(item); + + if (al==0) + { + *ok = 1; + return frag->msg_header.frag_len; + } + + ssl3_send_alert(s,SSL3_AL_FATAL,al); + s->init_num = 0; + *ok = 0; + return -1; + } + else + return 0; + } + + +static int +dtls1_process_out_of_seq_message(SSL *s, struct hm_header_st* msg_hdr, int *ok) +{ + int i=-1; + hm_fragment *frag = NULL; + pitem *item = NULL; + PQ_64BIT seq64; + unsigned long frag_len = msg_hdr->frag_len; + + if ((msg_hdr->frag_off+frag_len) > msg_hdr->msg_len) + goto err; + + if (msg_hdr->seq <= s->d1->handshake_read_seq) + { + unsigned char devnull [256]; + + while (frag_len) + { + i = s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE, + devnull, + frag_len>sizeof(devnull)?sizeof(devnull):frag_len,0); + if (i<=0) goto err; + frag_len -= i; + } + } + + frag = dtls1_hm_fragment_new(frag_len); + if ( frag == NULL) + goto err; + + memcpy(&(frag->msg_header), msg_hdr, sizeof(*msg_hdr)); + + if (frag_len) + { + /* read the body of the fragment (header has already been read */ + i = s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE, + frag->fragment,frag_len,0); + if (i<=0 || (unsigned long)i!=frag_len) + goto err; + } + + pq_64bit_init(&seq64); + pq_64bit_assign_word(&seq64, msg_hdr->seq); + + item = pitem_new(seq64, frag); + pq_64bit_free(&seq64); + if ( item == NULL) + goto err; + + pqueue_insert(s->d1->buffered_messages, item); + return DTLS1_HM_FRAGMENT_RETRY; + +err: + if ( frag != NULL) dtls1_hm_fragment_free(frag); + if ( item != NULL) OPENSSL_free(item); + *ok = 0; + return i; + } + + +static long +dtls1_get_message_fragment(SSL *s, int st1, int stn, long max, int *ok) + { + unsigned char wire[DTLS1_HM_HEADER_LENGTH]; + unsigned long l, frag_off, frag_len; + int i,al; + struct hm_header_st msg_hdr; + + /* see if we have the required fragment already */ + if ((frag_len = dtls1_retrieve_buffered_fragment(s,max,ok)) || *ok) + { + if (*ok) s->init_num += frag_len; + return frag_len; + } + + /* read handshake message header */ + i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,wire, + DTLS1_HM_HEADER_LENGTH, 0); + if (i <= 0) /* nbio, or an error */ + { + s->rwstate=SSL_READING; + *ok = 0; + return i; + } + OPENSSL_assert(i == DTLS1_HM_HEADER_LENGTH); + + /* parse the message fragment header */ + dtls1_get_message_header(wire, &msg_hdr); + + /* + * if this is a future (or stale) message it gets buffered + * (or dropped)--no further processing at this time + */ + if ( msg_hdr.seq != s->d1->handshake_read_seq) + return dtls1_process_out_of_seq_message(s, &msg_hdr, ok); + + l = msg_hdr.msg_len; + frag_off = msg_hdr.frag_off; + frag_len = msg_hdr.frag_len; + + if (!s->server && s->d1->r_msg_hdr.frag_off == 0 && + wire[0] == SSL3_MT_HELLO_REQUEST) + { + /* The server may always send 'Hello Request' messages -- + * we are doing a handshake anyway now, so ignore them + * if their format is correct. Does not count for + * 'Finished' MAC. */ + if (wire[1] == 0 && wire[2] == 0 && wire[3] == 0) + { + if (s->msg_callback) + s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, + wire, DTLS1_HM_HEADER_LENGTH, s, + s->msg_callback_arg); + + s->init_num = 0; + return dtls1_get_message_fragment(s, st1, stn, + max, ok); + } + else /* Incorrectly formated Hello request */ + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL_R_UNEXPECTED_MESSAGE); + goto f_err; + } + } + + if ((al=dtls1_preprocess_fragment(s,&msg_hdr,max))) + goto f_err; + + /* XDTLS: ressurect this when restart is in place */ + s->state=stn; + + if ( frag_len > 0) + { + unsigned char *p=s->init_buf->data+DTLS1_HM_HEADER_LENGTH; + + i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE, + &p[frag_off],frag_len,0); + /* XDTLS: fix this--message fragments cannot span multiple packets */ + if (i <= 0) + { + s->rwstate=SSL_READING; + *ok = 0; + return i; + } + } + else + i = 0; + + /* XDTLS: an incorrectly formatted fragment should cause the + * handshake to fail */ + OPENSSL_assert(i == (int)frag_len); + + *ok = 1; + + /* Note that s->init_num is *not* used as current offset in + * s->init_buf->data, but as a counter summing up fragments' + * lengths: as soon as they sum up to handshake packet + * length, we assume we have got all the fragments. */ + s->init_num += frag_len; + return frag_len; + +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); + s->init_num = 0; + + *ok=0; + return(-1); + } + +int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen) + { + unsigned char *p,*d; + int i; + unsigned long l; + + if (s->state == a) + { + d=(unsigned char *)s->init_buf->data; + p= &(d[DTLS1_HM_HEADER_LENGTH]); + + i=s->method->ssl3_enc->final_finish_mac(s, + &(s->s3->finish_dgst1), + &(s->s3->finish_dgst2), + sender,slen,s->s3->tmp.finish_md); + s->s3->tmp.finish_md_len = i; + memcpy(p, s->s3->tmp.finish_md, i); + p+=i; + l=i; + +#ifdef OPENSSL_SYS_WIN16 + /* MSVC 1.5 does not clear the top bytes of the word unless + * I do this. + */ + l&=0xffff; +#endif + + d = dtls1_set_message_header(s, d, SSL3_MT_FINISHED, l, 0, l); + s->init_num=(int)l+DTLS1_HM_HEADER_LENGTH; + s->init_off=0; + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + + s->state=b; + } + + /* SSL3_ST_SEND_xxxxxx_HELLO_B */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); + } + +/* for these 2 messages, we need to + * ssl->enc_read_ctx re-init + * ssl->s3->read_sequence zero + * ssl->s3->read_mac_secret re-init + * ssl->session->read_sym_enc assign + * ssl->session->read_compression assign + * ssl->session->read_hash assign + */ +int dtls1_send_change_cipher_spec(SSL *s, int a, int b) + { + unsigned char *p; + + if (s->state == a) + { + p=(unsigned char *)s->init_buf->data; + *p++=SSL3_MT_CCS; + s->d1->handshake_write_seq = s->d1->next_handshake_write_seq; + s->d1->next_handshake_write_seq++; + s->init_num=DTLS1_CCS_HEADER_LENGTH; + + if (s->client_version == DTLS1_BAD_VER) + { + s2n(s->d1->handshake_write_seq,p); + s->init_num+=2; + } + + s->init_off=0; + + dtls1_set_message_header_int(s, SSL3_MT_CCS, 0, + s->d1->handshake_write_seq, 0, 0); + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 1); + + s->state=b; + } + + /* SSL3_ST_CW_CHANGE_B */ + return(dtls1_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC)); + } + +unsigned long dtls1_output_cert_chain(SSL *s, X509 *x) + { + unsigned char *p; + int n,i; + unsigned long l= 3 + DTLS1_HM_HEADER_LENGTH; + BUF_MEM *buf; + X509_STORE_CTX xs_ctx; + X509_OBJECT obj; + + /* TLSv1 sends a chain with nothing in it, instead of an alert */ + buf=s->init_buf; + if (!BUF_MEM_grow_clean(buf,10)) + { + SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); + return(0); + } + if (x != NULL) + { + if(!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL)) + { + SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB); + return(0); + } + + for (;;) + { + n=i2d_X509(x,NULL); + if (!BUF_MEM_grow_clean(buf,(int)(n+l+3))) + { + SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); + return(0); + } + p=(unsigned char *)&(buf->data[l]); + l2n3(n,p); + i2d_X509(x,&p); + l+=n+3; + if (X509_NAME_cmp(X509_get_subject_name(x), + X509_get_issuer_name(x)) == 0) break; + + i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509, + X509_get_issuer_name(x),&obj); + if (i <= 0) break; + x=obj.data.x509; + /* Count is one too high since the X509_STORE_get uped the + * ref count */ + X509_free(x); + } + + X509_STORE_CTX_cleanup(&xs_ctx); + } + + /* Thawte special :-) */ + if (s->ctx->extra_certs != NULL) + for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++) + { + x=sk_X509_value(s->ctx->extra_certs,i); + n=i2d_X509(x,NULL); + if (!BUF_MEM_grow_clean(buf,(int)(n+l+3))) + { + SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); + return(0); + } + p=(unsigned char *)&(buf->data[l]); + l2n3(n,p); + i2d_X509(x,&p); + l+=n+3; + } + + l-= (3 + DTLS1_HM_HEADER_LENGTH); + + p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH]); + l2n3(l,p); + l+=3; + p=(unsigned char *)&(buf->data[0]); + p = dtls1_set_message_header(s, p, SSL3_MT_CERTIFICATE, l, 0, l); + + l+=DTLS1_HM_HEADER_LENGTH; + return(l); + } + +int dtls1_read_failed(SSL *s, int code) + { + DTLS1_STATE *state; + BIO *bio; + int send_alert = 0; + + if ( code > 0) + { + fprintf( stderr, "invalid state reached %s:%d", __FILE__, __LINE__); + return 1; + } + + bio = SSL_get_rbio(s); + if ( ! BIO_dgram_recv_timedout(bio)) + { + /* not a timeout, none of our business, + let higher layers handle this. in fact it's probably an error */ + return code; + } + + if ( ! SSL_in_init(s)) /* done, no need to send a retransmit */ + { + BIO_set_flags(SSL_get_rbio(s), BIO_FLAGS_READ); + return code; + } + + state = s->d1; + state->timeout.num_alerts++; + if ( state->timeout.num_alerts > DTLS1_TMO_ALERT_COUNT) + { + /* fail the connection, enough alerts have been sent */ + SSLerr(SSL_F_DTLS1_READ_FAILED,SSL_R_READ_TIMEOUT_EXPIRED); + return 0; + } + + state->timeout.read_timeouts++; + if ( state->timeout.read_timeouts > DTLS1_TMO_READ_COUNT) + { + send_alert = 1; + state->timeout.read_timeouts = 1; + } + + +#if 0 /* for now, each alert contains only one record number */ + item = pqueue_peek(state->rcvd_records); + if ( item ) + { + /* send an alert immediately for all the missing records */ + } + else +#endif + +#if 0 /* no more alert sending, just retransmit the last set of messages */ + if ( send_alert) + ssl3_send_alert(s,SSL3_AL_WARNING, + DTLS1_AD_MISSING_HANDSHAKE_MESSAGE); +#endif + + return dtls1_retransmit_buffered_messages(s) ; + } + + +static int +dtls1_retransmit_buffered_messages(SSL *s) + { + pqueue sent = s->d1->sent_messages; + piterator iter; + pitem *item; + hm_fragment *frag; + int found = 0; + + iter = pqueue_iterator(sent); + + for ( item = pqueue_next(&iter); item != NULL; item = pqueue_next(&iter)) + { + frag = (hm_fragment *)item->data; + if ( dtls1_retransmit_message(s, frag->msg_header.seq, 0, &found) <= 0 && + found) + { + fprintf(stderr, "dtls1_retransmit_message() failed\n"); + return -1; + } + } + + return 1; + } + +int +dtls1_buffer_message(SSL *s, int is_ccs) + { + pitem *item; + hm_fragment *frag; + PQ_64BIT seq64; + + /* this function is called immediately after a message has + * been serialized */ + OPENSSL_assert(s->init_off == 0); + + frag = dtls1_hm_fragment_new(s->init_num); + + memcpy(frag->fragment, s->init_buf->data, s->init_num); + + if ( is_ccs) + { + OPENSSL_assert(s->d1->w_msg_hdr.msg_len + + DTLS1_CCS_HEADER_LENGTH <= (unsigned int)s->init_num); + } + else + { + OPENSSL_assert(s->d1->w_msg_hdr.msg_len + + DTLS1_HM_HEADER_LENGTH == (unsigned int)s->init_num); + } + + frag->msg_header.msg_len = s->d1->w_msg_hdr.msg_len; + frag->msg_header.seq = s->d1->w_msg_hdr.seq; + frag->msg_header.type = s->d1->w_msg_hdr.type; + frag->msg_header.frag_off = 0; + frag->msg_header.frag_len = s->d1->w_msg_hdr.msg_len; + frag->msg_header.is_ccs = is_ccs; + + pq_64bit_init(&seq64); + pq_64bit_assign_word(&seq64, frag->msg_header.seq); + + item = pitem_new(seq64, frag); + pq_64bit_free(&seq64); + if ( item == NULL) + { + dtls1_hm_fragment_free(frag); + return 0; + } + +#if 0 + fprintf( stderr, "buffered messge: \ttype = %xx\n", msg_buf->type); + fprintf( stderr, "\t\t\t\t\tlen = %d\n", msg_buf->len); + fprintf( stderr, "\t\t\t\t\tseq_num = %d\n", msg_buf->seq_num); +#endif + + pqueue_insert(s->d1->sent_messages, item); + return 1; + } + +int +dtls1_retransmit_message(SSL *s, unsigned short seq, unsigned long frag_off, + int *found) + { + int ret; + /* XDTLS: for now assuming that read/writes are blocking */ + pitem *item; + hm_fragment *frag ; + unsigned long header_length; + PQ_64BIT seq64; + + /* + OPENSSL_assert(s->init_num == 0); + OPENSSL_assert(s->init_off == 0); + */ + + /* XDTLS: the requested message ought to be found, otherwise error */ + pq_64bit_init(&seq64); + pq_64bit_assign_word(&seq64, seq); + + item = pqueue_find(s->d1->sent_messages, seq64); + pq_64bit_free(&seq64); + if ( item == NULL) + { + fprintf(stderr, "retransmit: message %d non-existant\n", seq); + *found = 0; + return 0; + } + + *found = 1; + frag = (hm_fragment *)item->data; + + if ( frag->msg_header.is_ccs) + header_length = DTLS1_CCS_HEADER_LENGTH; + else + header_length = DTLS1_HM_HEADER_LENGTH; + + memcpy(s->init_buf->data, frag->fragment, + frag->msg_header.msg_len + header_length); + s->init_num = frag->msg_header.msg_len + header_length; + + dtls1_set_message_header_int(s, frag->msg_header.type, + frag->msg_header.msg_len, frag->msg_header.seq, 0, + frag->msg_header.frag_len); + + s->d1->retransmitting = 1; + ret = dtls1_do_write(s, frag->msg_header.is_ccs ? + SSL3_RT_CHANGE_CIPHER_SPEC : SSL3_RT_HANDSHAKE); + s->d1->retransmitting = 0; + + (void)BIO_flush(SSL_get_wbio(s)); + return ret; + } + +/* call this function when the buffered messages are no longer needed */ +void +dtls1_clear_record_buffer(SSL *s) + { + pitem *item; + + for(item = pqueue_pop(s->d1->sent_messages); + item != NULL; item = pqueue_pop(s->d1->sent_messages)) + { + dtls1_hm_fragment_free((hm_fragment *)item->data); + pitem_free(item); + } + } + + +unsigned char * +dtls1_set_message_header(SSL *s, unsigned char *p, unsigned char mt, + unsigned long len, unsigned long frag_off, unsigned long frag_len) + { + if ( frag_off == 0) + { + s->d1->handshake_write_seq = s->d1->next_handshake_write_seq; + s->d1->next_handshake_write_seq++; + } + + dtls1_set_message_header_int(s, mt, len, s->d1->handshake_write_seq, + frag_off, frag_len); + + return p += DTLS1_HM_HEADER_LENGTH; + } + + +/* don't actually do the writing, wait till the MTU has been retrieved */ +static void +dtls1_set_message_header_int(SSL *s, unsigned char mt, + unsigned long len, unsigned short seq_num, unsigned long frag_off, + unsigned long frag_len) + { + struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr; + + msg_hdr->type = mt; + msg_hdr->msg_len = len; + msg_hdr->seq = seq_num; + msg_hdr->frag_off = frag_off; + msg_hdr->frag_len = frag_len; + } + +static void +dtls1_fix_message_header(SSL *s, unsigned long frag_off, + unsigned long frag_len) + { + struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr; + + msg_hdr->frag_off = frag_off; + msg_hdr->frag_len = frag_len; + } + +static unsigned char * +dtls1_write_message_header(SSL *s, unsigned char *p) + { + struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr; + + *p++ = msg_hdr->type; + l2n3(msg_hdr->msg_len, p); + + s2n(msg_hdr->seq, p); + l2n3(msg_hdr->frag_off, p); + l2n3(msg_hdr->frag_len, p); + + return p; + } + +static unsigned int +dtls1_min_mtu(void) + { + return (g_probable_mtu[(sizeof(g_probable_mtu) / + sizeof(g_probable_mtu[0])) - 1]); + } + +static unsigned int +dtls1_guess_mtu(unsigned int curr_mtu) + { + size_t i; + + if ( curr_mtu == 0 ) + return g_probable_mtu[0] ; + + for ( i = 0; i < sizeof(g_probable_mtu)/sizeof(g_probable_mtu[0]); i++) + if ( curr_mtu > g_probable_mtu[i]) + return g_probable_mtu[i]; + + return curr_mtu; + } + +void +dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr) + { + memset(msg_hdr, 0x00, sizeof(struct hm_header_st)); + msg_hdr->type = *(data++); + n2l3(data, msg_hdr->msg_len); + + n2s(data, msg_hdr->seq); + n2l3(data, msg_hdr->frag_off); + n2l3(data, msg_hdr->frag_len); + } + +void +dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr) + { + memset(ccs_hdr, 0x00, sizeof(struct ccs_header_st)); + + ccs_hdr->type = *(data++); + } diff --git a/ssl/d1_clnt.c b/ssl/d1_clnt.c new file mode 100644 index 000000000000..e8b60a45d225 --- /dev/null +++ b/ssl/d1_clnt.c @@ -0,0 +1,1143 @@ +/* ssl/d1_clnt.c */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "ssl_locl.h" +#include "kssl_lcl.h" +#include <openssl/buffer.h> +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/evp.h> +#include <openssl/md5.h> +#ifndef OPENSSL_NO_DH +#include <openssl/dh.h> +#endif + +static SSL_METHOD *dtls1_get_client_method(int ver); +static int dtls1_get_hello_verify(SSL *s); + +static SSL_METHOD *dtls1_get_client_method(int ver) + { + if (ver == DTLS1_VERSION) + return(DTLSv1_client_method()); + else + return(NULL); + } + +IMPLEMENT_dtls1_meth_func(DTLSv1_client_method, + ssl_undefined_function, + dtls1_connect, + dtls1_get_client_method) + +int dtls1_connect(SSL *s) + { + BUF_MEM *buf=NULL; + unsigned long Time=(unsigned long)time(NULL),l; + long num1; + void (*cb)(const SSL *ssl,int type,int val)=NULL; + int ret= -1; + int new_state,state,skip=0;; + + RAND_add(&Time,sizeof(Time),0); + ERR_clear_error(); + clear_sys_error(); + + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); + + for (;;) + { + state=s->state; + + switch(s->state) + { + case SSL_ST_RENEGOTIATE: + s->new_session=1; + s->state=SSL_ST_CONNECT; + s->ctx->stats.sess_connect_renegotiate++; + /* break */ + case SSL_ST_BEFORE: + case SSL_ST_CONNECT: + case SSL_ST_BEFORE|SSL_ST_CONNECT: + case SSL_ST_OK|SSL_ST_CONNECT: + + s->server=0; + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); + + if ((s->version & 0xff00 ) != (DTLS1_VERSION & 0xff00)) + { + SSLerr(SSL_F_DTLS1_CONNECT, ERR_R_INTERNAL_ERROR); + ret = -1; + goto end; + } + + /* s->version=SSL3_VERSION; */ + s->type=SSL_ST_CONNECT; + + if (s->init_buf == NULL) + { + if ((buf=BUF_MEM_new()) == NULL) + { + ret= -1; + goto end; + } + if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH)) + { + ret= -1; + goto end; + } + s->init_buf=buf; + buf=NULL; + } + + if (!ssl3_setup_buffers(s)) { ret= -1; goto end; } + + /* setup buffing BIO */ + if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; } + + /* don't push the buffering BIO quite yet */ + + ssl3_init_finished_mac(s); + + s->state=SSL3_ST_CW_CLNT_HELLO_A; + s->ctx->stats.sess_connect++; + s->init_num=0; + break; + + case SSL3_ST_CW_CLNT_HELLO_A: + case SSL3_ST_CW_CLNT_HELLO_B: + + s->shutdown=0; + ret=dtls1_client_hello(s); + if (ret <= 0) goto end; + + if ( s->d1->send_cookie) + { + s->state=SSL3_ST_CW_FLUSH; + s->s3->tmp.next_state=SSL3_ST_CR_SRVR_HELLO_A; + } + else + s->state=SSL3_ST_CR_SRVR_HELLO_A; + + s->init_num=0; + + /* turn on buffering for the next lot of output */ + if (s->bbio != s->wbio) + s->wbio=BIO_push(s->bbio,s->wbio); + + break; + + case SSL3_ST_CR_SRVR_HELLO_A: + case SSL3_ST_CR_SRVR_HELLO_B: + ret=ssl3_get_server_hello(s); + if (ret <= 0) goto end; + else + { + if (s->hit) + s->state=SSL3_ST_CR_FINISHED_A; + else + s->state=DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A; + } + s->init_num=0; + break; + + case DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A: + case DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B: + + ret = dtls1_get_hello_verify(s); + if ( ret <= 0) + goto end; + if ( s->d1->send_cookie) /* start again, with a cookie */ + s->state=SSL3_ST_CW_CLNT_HELLO_A; + else + s->state = SSL3_ST_CR_CERT_A; + s->init_num = 0; + break; + + case SSL3_ST_CR_CERT_A: + case SSL3_ST_CR_CERT_B: + /* Check if it is anon DH */ + if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) + { + ret=ssl3_get_server_certificate(s); + if (ret <= 0) goto end; + } + else + skip=1; + s->state=SSL3_ST_CR_KEY_EXCH_A; + s->init_num=0; + break; + + case SSL3_ST_CR_KEY_EXCH_A: + case SSL3_ST_CR_KEY_EXCH_B: + ret=ssl3_get_key_exchange(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_CR_CERT_REQ_A; + s->init_num=0; + + /* at this point we check that we have the + * required stuff from the server */ + if (!ssl3_check_cert_and_algorithm(s)) + { + ret= -1; + goto end; + } + break; + + case SSL3_ST_CR_CERT_REQ_A: + case SSL3_ST_CR_CERT_REQ_B: + ret=ssl3_get_certificate_request(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_CR_SRVR_DONE_A; + s->init_num=0; + break; + + case SSL3_ST_CR_SRVR_DONE_A: + case SSL3_ST_CR_SRVR_DONE_B: + ret=ssl3_get_server_done(s); + if (ret <= 0) goto end; + if (s->s3->tmp.cert_req) + s->state=SSL3_ST_CW_CERT_A; + else + s->state=SSL3_ST_CW_KEY_EXCH_A; + s->init_num=0; + + break; + + case SSL3_ST_CW_CERT_A: + case SSL3_ST_CW_CERT_B: + case SSL3_ST_CW_CERT_C: + case SSL3_ST_CW_CERT_D: + ret=dtls1_send_client_certificate(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_CW_KEY_EXCH_A; + s->init_num=0; + break; + + case SSL3_ST_CW_KEY_EXCH_A: + case SSL3_ST_CW_KEY_EXCH_B: + ret=dtls1_send_client_key_exchange(s); + if (ret <= 0) goto end; + l=s->s3->tmp.new_cipher->algorithms; + /* EAY EAY EAY need to check for DH fix cert + * sent back */ + /* For TLS, cert_req is set to 2, so a cert chain + * of nothing is sent, but no verify packet is sent */ + if (s->s3->tmp.cert_req == 1) + { + s->state=SSL3_ST_CW_CERT_VRFY_A; + } + else + { + s->state=SSL3_ST_CW_CHANGE_A; + s->s3->change_cipher_spec=0; + } + + s->init_num=0; + break; + + case SSL3_ST_CW_CERT_VRFY_A: + case SSL3_ST_CW_CERT_VRFY_B: + ret=dtls1_send_client_verify(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_CW_CHANGE_A; + s->init_num=0; + s->s3->change_cipher_spec=0; + break; + + case SSL3_ST_CW_CHANGE_A: + case SSL3_ST_CW_CHANGE_B: + ret=dtls1_send_change_cipher_spec(s, + SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B); + if (ret <= 0) goto end; + s->state=SSL3_ST_CW_FINISHED_A; + s->init_num=0; + + s->session->cipher=s->s3->tmp.new_cipher; +#ifdef OPENSSL_NO_COMP + s->session->compress_meth=0; +#else + if (s->s3->tmp.new_compression == NULL) + s->session->compress_meth=0; + else + s->session->compress_meth= + s->s3->tmp.new_compression->id; +#endif + if (!s->method->ssl3_enc->setup_key_block(s)) + { + ret= -1; + goto end; + } + + if (!s->method->ssl3_enc->change_cipher_state(s, + SSL3_CHANGE_CIPHER_CLIENT_WRITE)) + { + ret= -1; + goto end; + } + + dtls1_reset_seq_numbers(s, SSL3_CC_WRITE); + break; + + case SSL3_ST_CW_FINISHED_A: + case SSL3_ST_CW_FINISHED_B: + ret=dtls1_send_finished(s, + SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B, + s->method->ssl3_enc->client_finished_label, + s->method->ssl3_enc->client_finished_label_len); + if (ret <= 0) goto end; + s->state=SSL3_ST_CW_FLUSH; + + /* clear flags */ + s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER; + if (s->hit) + { + s->s3->tmp.next_state=SSL_ST_OK; + if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED) + { + s->state=SSL_ST_OK; + s->s3->flags|=SSL3_FLAGS_POP_BUFFER; + s->s3->delay_buf_pop_ret=0; + } + } + else + { + s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A; + } + s->init_num=0; + break; + + case SSL3_ST_CR_FINISHED_A: + case SSL3_ST_CR_FINISHED_B: + + ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A, + SSL3_ST_CR_FINISHED_B); + if (ret <= 0) goto end; + + if (s->hit) + s->state=SSL3_ST_CW_CHANGE_A; + else + s->state=SSL_ST_OK; + s->init_num=0; + break; + + case SSL3_ST_CW_FLUSH: + /* number of bytes to be flushed */ + num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL); + if (num1 > 0) + { + s->rwstate=SSL_WRITING; + num1=BIO_flush(s->wbio); + if (num1 <= 0) { ret= -1; goto end; } + s->rwstate=SSL_NOTHING; + } + + s->state=s->s3->tmp.next_state; + break; + + case SSL_ST_OK: + /* clean a few things up */ + ssl3_cleanup_key_block(s); + +#if 0 + if (s->init_buf != NULL) + { + BUF_MEM_free(s->init_buf); + s->init_buf=NULL; + } +#endif + + /* If we are not 'joining' the last two packets, + * remove the buffering now */ + if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER)) + ssl_free_wbio_buffer(s); + /* else do it later in ssl3_write */ + + s->init_num=0; + s->new_session=0; + + ssl_update_cache(s,SSL_SESS_CACHE_CLIENT); + if (s->hit) s->ctx->stats.sess_hit++; + + ret=1; + /* s->server=0; */ + s->handshake_func=dtls1_connect; + s->ctx->stats.sess_connect_good++; + + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1); + + /* done with handshaking */ + s->d1->handshake_read_seq = 0; + goto end; + /* break; */ + + default: + SSLerr(SSL_F_DTLS1_CONNECT,SSL_R_UNKNOWN_STATE); + ret= -1; + goto end; + /* break; */ + } + + /* did we do anything */ + if (!s->s3->tmp.reuse_message && !skip) + { + if (s->debug) + { + if ((ret=BIO_flush(s->wbio)) <= 0) + goto end; + } + + if ((cb != NULL) && (s->state != state)) + { + new_state=s->state; + s->state=state; + cb(s,SSL_CB_CONNECT_LOOP,1); + s->state=new_state; + } + } + skip=0; + } +end: + s->in_handshake--; + if (buf != NULL) + BUF_MEM_free(buf); + if (cb != NULL) + cb(s,SSL_CB_CONNECT_EXIT,ret); + return(ret); + } + +int dtls1_client_hello(SSL *s) + { + unsigned char *buf; + unsigned char *p,*d; + unsigned int i,j; + unsigned long Time,l; + SSL_COMP *comp; + + buf=(unsigned char *)s->init_buf->data; + if (s->state == SSL3_ST_CW_CLNT_HELLO_A) + { + if ((s->session == NULL) || + (s->session->ssl_version != s->version) || + (s->session->not_resumable)) + { + if (!ssl_get_new_session(s,0)) + goto err; + } + /* else use the pre-loaded session */ + + p=s->s3->client_random; + Time=(unsigned long)time(NULL); /* Time */ + l2n(Time,p); + RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time)); + + /* Do the message type and length last */ + d=p= &(buf[DTLS1_HM_HEADER_LENGTH]); + + *(p++)=s->version>>8; + *(p++)=s->version&0xff; + s->client_version=s->version; + + /* Random stuff */ + memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE); + p+=SSL3_RANDOM_SIZE; + + /* Session ID */ + if (s->new_session) + i=0; + else + i=s->session->session_id_length; + *(p++)=i; + if (i != 0) + { + if (i > sizeof s->session->session_id) + { + SSLerr(SSL_F_DTLS1_CLIENT_HELLO, ERR_R_INTERNAL_ERROR); + goto err; + } + memcpy(p,s->session->session_id,i); + p+=i; + } + + /* cookie stuff */ + if ( s->d1->cookie_len > sizeof(s->d1->cookie)) + { + SSLerr(SSL_F_DTLS1_CLIENT_HELLO, ERR_R_INTERNAL_ERROR); + goto err; + } + *(p++) = s->d1->cookie_len; + memcpy(p, s->d1->cookie, s->d1->cookie_len); + p += s->d1->cookie_len; + + /* Ciphers supported */ + i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),0); + if (i == 0) + { + SSLerr(SSL_F_DTLS1_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE); + goto err; + } + s2n(i,p); + p+=i; + + /* COMPRESSION */ + if (s->ctx->comp_methods == NULL) + j=0; + else + j=sk_SSL_COMP_num(s->ctx->comp_methods); + *(p++)=1+j; + for (i=0; i<j; i++) + { + comp=sk_SSL_COMP_value(s->ctx->comp_methods,i); + *(p++)=comp->id; + } + *(p++)=0; /* Add the NULL method */ + + l=(p-d); + d=buf; + + d = dtls1_set_message_header(s, d, SSL3_MT_CLIENT_HELLO, l, 0, l); + + s->state=SSL3_ST_CW_CLNT_HELLO_B; + /* number of bytes to write */ + s->init_num=p-buf; + s->init_off=0; + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + } + + /* SSL3_ST_CW_CLNT_HELLO_B */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); +err: + return(-1); + } + +static int dtls1_get_hello_verify(SSL *s) + { + int n, al, ok = 0; + unsigned char *data; + unsigned int cookie_len; + + n=s->method->ssl_get_message(s, + DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A, + DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B, + -1, + s->max_cert_list, + &ok); + + if (!ok) return((int)n); + + if (s->s3->tmp.message_type != DTLS1_MT_HELLO_VERIFY_REQUEST) + { + s->d1->send_cookie = 0; + s->s3->tmp.reuse_message=1; + return(1); + } + + data = (unsigned char *)s->init_msg; + + if ((data[0] != (s->version>>8)) || (data[1] != (s->version&0xff))) + { + SSLerr(SSL_F_DTLS1_GET_HELLO_VERIFY,SSL_R_WRONG_SSL_VERSION); + s->version=(s->version&0xff00)|data[1]; + al = SSL_AD_PROTOCOL_VERSION; + goto f_err; + } + data+=2; + + cookie_len = *(data++); + if ( cookie_len > sizeof(s->d1->cookie)) + { + al=SSL_AD_ILLEGAL_PARAMETER; + goto f_err; + } + + memcpy(s->d1->cookie, data, cookie_len); + s->d1->cookie_len = cookie_len; + + s->d1->send_cookie = 1; + return 1; + +f_err: + ssl3_send_alert(s, SSL3_AL_FATAL, al); + return -1; + } + +int dtls1_send_client_key_exchange(SSL *s) + { + unsigned char *p,*d; + int n; + unsigned long l; +#ifndef OPENSSL_NO_RSA + unsigned char *q; + EVP_PKEY *pkey=NULL; +#endif +#ifndef OPENSSL_NO_KRB5 + KSSL_ERR kssl_err; +#endif /* OPENSSL_NO_KRB5 */ + + if (s->state == SSL3_ST_CW_KEY_EXCH_A) + { + d=(unsigned char *)s->init_buf->data; + p= &(d[DTLS1_HM_HEADER_LENGTH]); + + l=s->s3->tmp.new_cipher->algorithms; + + /* Fool emacs indentation */ + if (0) {} +#ifndef OPENSSL_NO_RSA + else if (l & SSL_kRSA) + { + RSA *rsa; + unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH]; + + if (s->session->sess_cert->peer_rsa_tmp != NULL) + rsa=s->session->sess_cert->peer_rsa_tmp; + else + { + pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); + if ((pkey == NULL) || + (pkey->type != EVP_PKEY_RSA) || + (pkey->pkey.rsa == NULL)) + { + SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); + goto err; + } + rsa=pkey->pkey.rsa; + EVP_PKEY_free(pkey); + } + + tmp_buf[0]=s->client_version>>8; + tmp_buf[1]=s->client_version&0xff; + if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0) + goto err; + + s->session->master_key_length=sizeof tmp_buf; + + q=p; + /* Fix buf for TLS and beyond */ + if (s->version > SSL3_VERSION) + p+=2; + n=RSA_public_encrypt(sizeof tmp_buf, + tmp_buf,p,rsa,RSA_PKCS1_PADDING); +#ifdef PKCS1_CHECK + if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++; + if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70; +#endif + if (n <= 0) + { + SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT); + goto err; + } + + /* Fix buf for TLS and beyond */ + if (s->version > SSL3_VERSION) + { + s2n(n,q); + n+=2; + } + + s->session->master_key_length= + s->method->ssl3_enc->generate_master_secret(s, + s->session->master_key, + tmp_buf,sizeof tmp_buf); + OPENSSL_cleanse(tmp_buf,sizeof tmp_buf); + } +#endif +#ifndef OPENSSL_NO_KRB5 + else if (l & SSL_kKRB5) + { + krb5_error_code krb5rc; + KSSL_CTX *kssl_ctx = s->kssl_ctx; + /* krb5_data krb5_ap_req; */ + krb5_data *enc_ticket; + krb5_data authenticator, *authp = NULL; + EVP_CIPHER_CTX ciph_ctx; + EVP_CIPHER *enc = NULL; + unsigned char iv[EVP_MAX_IV_LENGTH]; + unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH]; + unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH + + EVP_MAX_IV_LENGTH]; + int padl, outl = sizeof(epms); + + EVP_CIPHER_CTX_init(&ciph_ctx); + +#ifdef KSSL_DEBUG + printf("ssl3_send_client_key_exchange(%lx & %lx)\n", + l, SSL_kKRB5); +#endif /* KSSL_DEBUG */ + + authp = NULL; +#ifdef KRB5SENDAUTH + if (KRB5SENDAUTH) authp = &authenticator; +#endif /* KRB5SENDAUTH */ + + krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp, + &kssl_err); + enc = kssl_map_enc(kssl_ctx->enctype); + if (enc == NULL) + goto err; +#ifdef KSSL_DEBUG + { + printf("kssl_cget_tkt rtn %d\n", krb5rc); + if (krb5rc && kssl_err.text) + printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text); + } +#endif /* KSSL_DEBUG */ + + if (krb5rc) + { + ssl3_send_alert(s,SSL3_AL_FATAL, + SSL_AD_HANDSHAKE_FAILURE); + SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE, + kssl_err.reason); + goto err; + } + + /* 20010406 VRS - Earlier versions used KRB5 AP_REQ + ** in place of RFC 2712 KerberosWrapper, as in: + ** + ** Send ticket (copy to *p, set n = length) + ** n = krb5_ap_req.length; + ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length); + ** if (krb5_ap_req.data) + ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req); + ** + ** Now using real RFC 2712 KerberosWrapper + ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>) + ** Note: 2712 "opaque" types are here replaced + ** with a 2-byte length followed by the value. + ** Example: + ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms + ** Where "xx xx" = length bytes. Shown here with + ** optional authenticator omitted. + */ + + /* KerberosWrapper.Ticket */ + s2n(enc_ticket->length,p); + memcpy(p, enc_ticket->data, enc_ticket->length); + p+= enc_ticket->length; + n = enc_ticket->length + 2; + + /* KerberosWrapper.Authenticator */ + if (authp && authp->length) + { + s2n(authp->length,p); + memcpy(p, authp->data, authp->length); + p+= authp->length; + n+= authp->length + 2; + + free(authp->data); + authp->data = NULL; + authp->length = 0; + } + else + { + s2n(0,p);/* null authenticator length */ + n+=2; + } + + if (RAND_bytes(tmp_buf,sizeof tmp_buf) <= 0) + goto err; + + /* 20010420 VRS. Tried it this way; failed. + ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL); + ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx, + ** kssl_ctx->length); + ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv); + */ + + memset(iv, 0, sizeof iv); /* per RFC 1510 */ + EVP_EncryptInit_ex(&ciph_ctx,enc, NULL, + kssl_ctx->key,iv); + EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf, + sizeof tmp_buf); + EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl); + outl += padl; + if (outl > sizeof epms) + { + SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); + goto err; + } + EVP_CIPHER_CTX_cleanup(&ciph_ctx); + + /* KerberosWrapper.EncryptedPreMasterSecret */ + s2n(outl,p); + memcpy(p, epms, outl); + p+=outl; + n+=outl + 2; + + s->session->master_key_length= + s->method->ssl3_enc->generate_master_secret(s, + s->session->master_key, + tmp_buf, sizeof tmp_buf); + + OPENSSL_cleanse(tmp_buf, sizeof tmp_buf); + OPENSSL_cleanse(epms, outl); + } +#endif +#ifndef OPENSSL_NO_DH + else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) + { + DH *dh_srvr,*dh_clnt; + + if (s->session->sess_cert->peer_dh_tmp != NULL) + dh_srvr=s->session->sess_cert->peer_dh_tmp; + else + { + /* we get them from the cert */ + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); + SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS); + goto err; + } + + /* generate a new random key */ + if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL) + { + SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); + goto err; + } + if (!DH_generate_key(dh_clnt)) + { + SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); + goto err; + } + + /* use the 'p' output buffer for the DH key, but + * make sure to clear it out afterwards */ + + n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt); + + if (n <= 0) + { + SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); + goto err; + } + + /* generate master key from the result */ + s->session->master_key_length= + s->method->ssl3_enc->generate_master_secret(s, + s->session->master_key,p,n); + /* clean up */ + memset(p,0,n); + + /* send off the data */ + n=BN_num_bytes(dh_clnt->pub_key); + s2n(n,p); + BN_bn2bin(dh_clnt->pub_key,p); + n+=2; + + DH_free(dh_clnt); + + /* perhaps clean things up a bit EAY EAY EAY EAY*/ + } +#endif + else + { + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); + SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); + goto err; + } + + d = dtls1_set_message_header(s, d, + SSL3_MT_CLIENT_KEY_EXCHANGE, n, 0, n); + /* + *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE; + l2n3(n,d); + l2n(s->d1->handshake_write_seq,d); + s->d1->handshake_write_seq++; + */ + + s->state=SSL3_ST_CW_KEY_EXCH_B; + /* number of bytes to write */ + s->init_num=n+DTLS1_HM_HEADER_LENGTH; + s->init_off=0; + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + } + + /* SSL3_ST_CW_KEY_EXCH_B */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); +err: + return(-1); + } + +int dtls1_send_client_verify(SSL *s) + { + unsigned char *p,*d; + unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH]; + EVP_PKEY *pkey; +#ifndef OPENSSL_NO_RSA + unsigned u=0; +#endif + unsigned long n; +#ifndef OPENSSL_NO_DSA + int j; +#endif + + if (s->state == SSL3_ST_CW_CERT_VRFY_A) + { + d=(unsigned char *)s->init_buf->data; + p= &(d[DTLS1_HM_HEADER_LENGTH]); + pkey=s->cert->key->privatekey; + + s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2), + &(data[MD5_DIGEST_LENGTH])); + +#ifndef OPENSSL_NO_RSA + if (pkey->type == EVP_PKEY_RSA) + { + s->method->ssl3_enc->cert_verify_mac(s, + &(s->s3->finish_dgst1),&(data[0])); + if (RSA_sign(NID_md5_sha1, data, + MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH, + &(p[2]), &u, pkey->pkey.rsa) <= 0 ) + { + SSLerr(SSL_F_DTLS1_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB); + goto err; + } + s2n(u,p); + n=u+2; + } + else +#endif +#ifndef OPENSSL_NO_DSA + if (pkey->type == EVP_PKEY_DSA) + { + if (!DSA_sign(pkey->save_type, + &(data[MD5_DIGEST_LENGTH]), + SHA_DIGEST_LENGTH,&(p[2]), + (unsigned int *)&j,pkey->pkey.dsa)) + { + SSLerr(SSL_F_DTLS1_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB); + goto err; + } + s2n(j,p); + n=j+2; + } + else +#endif + { + SSLerr(SSL_F_DTLS1_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR); + goto err; + } + + d = dtls1_set_message_header(s, d, + SSL3_MT_CERTIFICATE_VERIFY, n, 0, n) ; + + s->init_num=(int)n+DTLS1_HM_HEADER_LENGTH; + s->init_off=0; + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + + s->state = SSL3_ST_CW_CERT_VRFY_B; + } + + /* s->state = SSL3_ST_CW_CERT_VRFY_B */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); +err: + return(-1); + } + +int dtls1_send_client_certificate(SSL *s) + { + X509 *x509=NULL; + EVP_PKEY *pkey=NULL; + int i; + unsigned long l; + + if (s->state == SSL3_ST_CW_CERT_A) + { + if ((s->cert == NULL) || + (s->cert->key->x509 == NULL) || + (s->cert->key->privatekey == NULL)) + s->state=SSL3_ST_CW_CERT_B; + else + s->state=SSL3_ST_CW_CERT_C; + } + + /* We need to get a client cert */ + if (s->state == SSL3_ST_CW_CERT_B) + { + /* If we get an error, we need to + * ssl->rwstate=SSL_X509_LOOKUP; return(-1); + * We then get retied later */ + i=0; + if (s->ctx->client_cert_cb != NULL) + i=s->ctx->client_cert_cb(s,&(x509),&(pkey)); + if (i < 0) + { + s->rwstate=SSL_X509_LOOKUP; + return(-1); + } + s->rwstate=SSL_NOTHING; + if ((i == 1) && (pkey != NULL) && (x509 != NULL)) + { + s->state=SSL3_ST_CW_CERT_B; + if ( !SSL_use_certificate(s,x509) || + !SSL_use_PrivateKey(s,pkey)) + i=0; + } + else if (i == 1) + { + i=0; + SSLerr(SSL_F_DTLS1_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK); + } + + if (x509 != NULL) X509_free(x509); + if (pkey != NULL) EVP_PKEY_free(pkey); + if (i == 0) + { + if (s->version == SSL3_VERSION) + { + s->s3->tmp.cert_req=0; + ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE); + return(1); + } + else + { + s->s3->tmp.cert_req=2; + } + } + + /* Ok, we have a cert */ + s->state=SSL3_ST_CW_CERT_C; + } + + if (s->state == SSL3_ST_CW_CERT_C) + { + s->state=SSL3_ST_CW_CERT_D; + l=dtls1_output_cert_chain(s, + (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509); + s->init_num=(int)l; + s->init_off=0; + + /* set header called by dtls1_output_cert_chain() */ + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + } + /* SSL3_ST_CW_CERT_D */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); + } + + diff --git a/ssl/d1_enc.c b/ssl/d1_enc.c new file mode 100644 index 000000000000..cbff7495c502 --- /dev/null +++ b/ssl/d1_enc.c @@ -0,0 +1,281 @@ +/* ssl/d1_enc.c */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "ssl_locl.h" +#include <openssl/comp.h> +#include <openssl/evp.h> +#include <openssl/hmac.h> +#include <openssl/md5.h> +#include <openssl/rand.h> + + +int dtls1_enc(SSL *s, int send) + { + SSL3_RECORD *rec; + EVP_CIPHER_CTX *ds; + unsigned long l; + int bs,i,ii,j,k,n=0; + const EVP_CIPHER *enc; + + if (send) + { + if (s->write_hash != NULL) + n=EVP_MD_size(s->write_hash); + ds=s->enc_write_ctx; + rec= &(s->s3->wrec); + if (s->enc_write_ctx == NULL) + enc=NULL; + else + { + enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx); + if ( rec->data != rec->input) + /* we can't write into the input stream */ + fprintf(stderr, "%s:%d: rec->data != rec->input\n", + __FILE__, __LINE__); + else if ( EVP_CIPHER_block_size(ds->cipher) > 1) + { + if (!RAND_bytes(rec->input, EVP_CIPHER_block_size(ds->cipher))) + return -1; + } + } + } + else + { + if (s->read_hash != NULL) + n=EVP_MD_size(s->read_hash); + ds=s->enc_read_ctx; + rec= &(s->s3->rrec); + if (s->enc_read_ctx == NULL) + enc=NULL; + else + enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx); + } + +#ifdef KSSL_DEBUG + printf("dtls1_enc(%d)\n", send); +#endif /* KSSL_DEBUG */ + + if ((s->session == NULL) || (ds == NULL) || + (enc == NULL)) + { + memmove(rec->data,rec->input,rec->length); + rec->input=rec->data; + } + else + { + l=rec->length; + bs=EVP_CIPHER_block_size(ds->cipher); + + if ((bs != 1) && send) + { + i=bs-((int)l%bs); + + /* Add weird padding of upto 256 bytes */ + + /* we need to add 'i' padding bytes of value j */ + j=i-1; + if (s->options & SSL_OP_TLS_BLOCK_PADDING_BUG) + { + if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG) + j++; + } + for (k=(int)l; k<(int)(l+i); k++) + rec->input[k]=j; + l+=i; + rec->length+=i; + } + +#ifdef KSSL_DEBUG + { + unsigned long ui; + printf("EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n", + ds,rec->data,rec->input,l); + printf("\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%d %d], %d iv_len\n", + ds->buf_len, ds->cipher->key_len, + DES_KEY_SZ, DES_SCHEDULE_SZ, + ds->cipher->iv_len); + printf("\t\tIV: "); + for (i=0; i<ds->cipher->iv_len; i++) printf("%02X", ds->iv[i]); + printf("\n"); + printf("\trec->input="); + for (ui=0; ui<l; ui++) printf(" %02x", rec->input[ui]); + printf("\n"); + } +#endif /* KSSL_DEBUG */ + + if (!send) + { + if (l == 0 || l%bs != 0) + { + SSLerr(SSL_F_DTLS1_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG); + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED); + return 0; + } + } + + EVP_Cipher(ds,rec->data,rec->input,l); + +#ifdef KSSL_DEBUG + { + unsigned long i; + printf("\trec->data="); + for (i=0; i<l; i++) + printf(" %02x", rec->data[i]); printf("\n"); + } +#endif /* KSSL_DEBUG */ + + if ((bs != 1) && !send) + { + ii=i=rec->data[l-1]; /* padding_length */ + i++; + if (s->options&SSL_OP_TLS_BLOCK_PADDING_BUG) + { + /* First packet is even in size, so check */ + if ((memcmp(s->s3->read_sequence, + "\0\0\0\0\0\0\0\0",8) == 0) && !(ii & 1)) + s->s3->flags|=TLS1_FLAGS_TLS_PADDING_BUG; + if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG) + i--; + } + /* TLS 1.0 does not bound the number of padding bytes by the block size. + * All of them must have value 'padding_length'. */ + if (i > (int)rec->length) + { + /* Incorrect padding. SSLerr() and ssl3_alert are done + * by caller: we don't want to reveal whether this is + * a decryption error or a MAC verification failure + * (see http://www.openssl.org/~bodo/tls-cbc.txt) + */ + return -1; + } + for (j=(int)(l-i); j<(int)l; j++) + { + if (rec->data[j] != ii) + { + /* Incorrect padding */ + return -1; + } + } + rec->length-=i; + + rec->data += bs; /* skip the implicit IV */ + rec->input += bs; + rec->length -= bs; + } + } + return(1); + } + diff --git a/ssl/d1_lib.c b/ssl/d1_lib.c new file mode 100644 index 000000000000..d07a212facea --- /dev/null +++ b/ssl/d1_lib.c @@ -0,0 +1,190 @@ +/* ssl/d1_lib.c */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include <openssl/objects.h> +#include "ssl_locl.h" + +const char dtls1_version_str[]="DTLSv1" OPENSSL_VERSION_PTEXT; + +SSL3_ENC_METHOD DTLSv1_enc_data={ + dtls1_enc, + tls1_mac, + tls1_setup_key_block, + tls1_generate_master_secret, + tls1_change_cipher_state, + tls1_final_finish_mac, + TLS1_FINISH_MAC_LENGTH, + tls1_cert_verify_mac, + TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE, + TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE, + tls1_alert_code, + }; + +long dtls1_default_timeout(void) + { + /* 2 hours, the 24 hours mentioned in the DTLSv1 spec + * is way too long for http, the cache would over fill */ + return(60*60*2); + } + +IMPLEMENT_dtls1_meth_func(dtlsv1_base_method, + ssl_undefined_function, + ssl_undefined_function, + ssl_bad_method) + +int dtls1_new(SSL *s) + { + DTLS1_STATE *d1; + + if (!ssl3_new(s)) return(0); + if ((d1=OPENSSL_malloc(sizeof *d1)) == NULL) return (0); + memset(d1,0, sizeof *d1); + + /* d1->handshake_epoch=0; */ +#if defined(OPENSSL_SYS_VMS) || defined(VMS_TEST) + d1->bitmap.length=64; +#else + d1->bitmap.length=sizeof(d1->bitmap.map) * 8; +#endif + pq_64bit_init(&(d1->bitmap.map)); + pq_64bit_init(&(d1->bitmap.max_seq_num)); + + pq_64bit_init(&(d1->next_bitmap.map)); + pq_64bit_init(&(d1->next_bitmap.max_seq_num)); + + d1->unprocessed_rcds.q=pqueue_new(); + d1->processed_rcds.q=pqueue_new(); + d1->buffered_messages = pqueue_new(); + d1->sent_messages=pqueue_new(); + + if ( s->server) + { + d1->cookie_len = sizeof(s->d1->cookie); + } + + if( ! d1->unprocessed_rcds.q || ! d1->processed_rcds.q + || ! d1->buffered_messages || ! d1->sent_messages) + { + if ( d1->unprocessed_rcds.q) pqueue_free(d1->unprocessed_rcds.q); + if ( d1->processed_rcds.q) pqueue_free(d1->processed_rcds.q); + if ( d1->buffered_messages) pqueue_free(d1->buffered_messages); + if ( d1->sent_messages) pqueue_free(d1->sent_messages); + OPENSSL_free(d1); + return (0); + } + + s->d1=d1; + s->method->ssl_clear(s); + return(1); + } + +void dtls1_free(SSL *s) + { + pitem *item = NULL; + hm_fragment *frag = NULL; + + ssl3_free(s); + + while( (item = pqueue_pop(s->d1->unprocessed_rcds.q)) != NULL) + { + OPENSSL_free(item->data); + pitem_free(item); + } + pqueue_free(s->d1->unprocessed_rcds.q); + + while( (item = pqueue_pop(s->d1->processed_rcds.q)) != NULL) + { + OPENSSL_free(item->data); + pitem_free(item); + } + pqueue_free(s->d1->processed_rcds.q); + + while( (item = pqueue_pop(s->d1->buffered_messages)) != NULL) + { + frag = (hm_fragment *)item->data; + OPENSSL_free(frag->fragment); + OPENSSL_free(frag); + pitem_free(item); + } + pqueue_free(s->d1->buffered_messages); + + while ( (item = pqueue_pop(s->d1->sent_messages)) != NULL) + { + frag = (hm_fragment *)item->data; + OPENSSL_free(frag->fragment); + OPENSSL_free(frag); + pitem_free(item); + } + pqueue_free(s->d1->sent_messages); + + pq_64bit_free(&(s->d1->bitmap.map)); + pq_64bit_free(&(s->d1->bitmap.max_seq_num)); + + pq_64bit_free(&(s->d1->next_bitmap.map)); + pq_64bit_free(&(s->d1->next_bitmap.max_seq_num)); + + OPENSSL_free(s->d1); + } + +void dtls1_clear(SSL *s) + { + ssl3_clear(s); + s->version=DTLS1_VERSION; + } diff --git a/ssl/d1_meth.c b/ssl/d1_meth.c new file mode 100644 index 000000000000..8a6cf31947ab --- /dev/null +++ b/ssl/d1_meth.c @@ -0,0 +1,77 @@ +/* ssl/d1_meth.h */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include <openssl/objects.h> +#include "ssl_locl.h" + +static SSL_METHOD *dtls1_get_method(int ver); +static SSL_METHOD *dtls1_get_method(int ver) + { + if (ver == DTLS1_VERSION) + return(DTLSv1_method()); + else + return(NULL); + } + +IMPLEMENT_dtls1_meth_func(DTLSv1_method, + dtls1_accept, + dtls1_connect, + dtls1_get_method) + diff --git a/ssl/d1_pkt.c b/ssl/d1_pkt.c new file mode 100644 index 000000000000..8270419a8dce --- /dev/null +++ b/ssl/d1_pkt.c @@ -0,0 +1,1772 @@ +/* ssl/d1_pkt.c */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <errno.h> +#define USE_SOCKETS +#include "ssl_locl.h" +#include <openssl/evp.h> +#include <openssl/buffer.h> +#include <openssl/pqueue.h> + +static int have_handshake_fragment(SSL *s, int type, unsigned char *buf, + int len, int peek); +static int dtls1_record_replay_check(SSL *s, DTLS1_BITMAP *bitmap, + PQ_64BIT *seq_num); +static void dtls1_record_bitmap_update(SSL *s, DTLS1_BITMAP *bitmap); +static DTLS1_BITMAP *dtls1_get_bitmap(SSL *s, SSL3_RECORD *rr, + unsigned int *is_next_epoch); +#if 0 +static int dtls1_record_needs_buffering(SSL *s, SSL3_RECORD *rr, + unsigned short *priority, unsigned long *offset); +#endif +static int dtls1_buffer_record(SSL *s, record_pqueue *q, + PQ_64BIT priority); +static int dtls1_process_record(SSL *s); +#if PQ_64BIT_IS_INTEGER +static PQ_64BIT bytes_to_long_long(unsigned char *bytes, PQ_64BIT *num); +#endif +static void dtls1_clear_timeouts(SSL *s); + +/* copy buffered record into SSL structure */ +static int +dtls1_copy_record(SSL *s, pitem *item) + { + DTLS1_RECORD_DATA *rdata; + + rdata = (DTLS1_RECORD_DATA *)item->data; + + if (s->s3->rbuf.buf != NULL) + OPENSSL_free(s->s3->rbuf.buf); + + s->packet = rdata->packet; + s->packet_length = rdata->packet_length; + memcpy(&(s->s3->rbuf), &(rdata->rbuf), sizeof(SSL3_BUFFER)); + memcpy(&(s->s3->rrec), &(rdata->rrec), sizeof(SSL3_RECORD)); + + return(1); + } + + +static int +dtls1_buffer_record(SSL *s, record_pqueue *queue, PQ_64BIT priority) +{ + DTLS1_RECORD_DATA *rdata; + pitem *item; + + rdata = OPENSSL_malloc(sizeof(DTLS1_RECORD_DATA)); + item = pitem_new(priority, rdata); + if (rdata == NULL || item == NULL) + { + if (rdata != NULL) OPENSSL_free(rdata); + if (item != NULL) pitem_free(item); + + SSLerr(SSL_F_DTLS1_BUFFER_RECORD, ERR_R_INTERNAL_ERROR); + return(0); + } + + rdata->packet = s->packet; + rdata->packet_length = s->packet_length; + memcpy(&(rdata->rbuf), &(s->s3->rbuf), sizeof(SSL3_BUFFER)); + memcpy(&(rdata->rrec), &(s->s3->rrec), sizeof(SSL3_RECORD)); + + item->data = rdata; + + /* insert should not fail, since duplicates are dropped */ + if (pqueue_insert(queue->q, item) == NULL) + { + OPENSSL_free(rdata); + pitem_free(item); + return(0); + } + + s->packet = NULL; + s->packet_length = 0; + memset(&(s->s3->rbuf), 0, sizeof(SSL3_BUFFER)); + memset(&(s->s3->rrec), 0, sizeof(SSL3_RECORD)); + + if (!ssl3_setup_buffers(s)) + { + SSLerr(SSL_F_DTLS1_BUFFER_RECORD, ERR_R_INTERNAL_ERROR); + OPENSSL_free(rdata); + pitem_free(item); + return(0); + } + + return(1); + } + + +static int +dtls1_retrieve_buffered_record(SSL *s, record_pqueue *queue) + { + pitem *item; + + item = pqueue_pop(queue->q); + if (item) + { + dtls1_copy_record(s, item); + + OPENSSL_free(item->data); + pitem_free(item); + + return(1); + } + + return(0); + } + + +/* retrieve a buffered record that belongs to the new epoch, i.e., not processed + * yet */ +#define dtls1_get_unprocessed_record(s) \ + dtls1_retrieve_buffered_record((s), \ + &((s)->d1->unprocessed_rcds)) + +/* retrieve a buffered record that belongs to the current epoch, ie, processed */ +#define dtls1_get_processed_record(s) \ + dtls1_retrieve_buffered_record((s), \ + &((s)->d1->processed_rcds)) + +static int +dtls1_process_buffered_records(SSL *s) + { + pitem *item; + + item = pqueue_peek(s->d1->unprocessed_rcds.q); + if (item) + { + DTLS1_RECORD_DATA *rdata; + rdata = (DTLS1_RECORD_DATA *)item->data; + + /* Check if epoch is current. */ + if (s->d1->unprocessed_rcds.epoch != s->d1->r_epoch) + return(1); /* Nothing to do. */ + + /* Process all the records. */ + while (pqueue_peek(s->d1->unprocessed_rcds.q)) + { + dtls1_get_unprocessed_record(s); + if ( ! dtls1_process_record(s)) + return(0); + dtls1_buffer_record(s, &(s->d1->processed_rcds), + s->s3->rrec.seq_num); + } + } + + /* sync epoch numbers once all the unprocessed records + * have been processed */ + s->d1->processed_rcds.epoch = s->d1->r_epoch; + s->d1->unprocessed_rcds.epoch = s->d1->r_epoch + 1; + + return(1); + } + + +#if 0 + +static int +dtls1_get_buffered_record(SSL *s) + { + pitem *item; + PQ_64BIT priority = + (((PQ_64BIT)s->d1->handshake_read_seq) << 32) | + ((PQ_64BIT)s->d1->r_msg_hdr.frag_off); + + if ( ! SSL_in_init(s)) /* if we're not (re)negotiating, + nothing buffered */ + return 0; + + + item = pqueue_peek(s->d1->rcvd_records); + if (item && item->priority == priority) + { + /* Check if we've received the record of interest. It must be + * a handshake record, since data records as passed up without + * buffering */ + DTLS1_RECORD_DATA *rdata; + item = pqueue_pop(s->d1->rcvd_records); + rdata = (DTLS1_RECORD_DATA *)item->data; + + if (s->s3->rbuf.buf != NULL) + OPENSSL_free(s->s3->rbuf.buf); + + s->packet = rdata->packet; + s->packet_length = rdata->packet_length; + memcpy(&(s->s3->rbuf), &(rdata->rbuf), sizeof(SSL3_BUFFER)); + memcpy(&(s->s3->rrec), &(rdata->rrec), sizeof(SSL3_RECORD)); + + OPENSSL_free(item->data); + pitem_free(item); + + /* s->d1->next_expected_seq_num++; */ + return(1); + } + + return 0; + } + +#endif + +static int +dtls1_process_record(SSL *s) +{ + int i,al; + int clear=0; + int enc_err; + SSL_SESSION *sess; + SSL3_RECORD *rr; + unsigned int mac_size; + unsigned char md[EVP_MAX_MD_SIZE]; + + + rr= &(s->s3->rrec); + sess = s->session; + + /* At this point, s->packet_length == SSL3_RT_HEADER_LNGTH + rr->length, + * and we have that many bytes in s->packet + */ + rr->input= &(s->packet[DTLS1_RT_HEADER_LENGTH]); + + /* ok, we can now read from 's->packet' data into 'rr' + * rr->input points at rr->length bytes, which + * need to be copied into rr->data by either + * the decryption or by the decompression + * When the data is 'copied' into the rr->data buffer, + * rr->input will be pointed at the new buffer */ + + /* We now have - encrypted [ MAC [ compressed [ plain ] ] ] + * rr->length bytes of encrypted compressed stuff. */ + + /* check is not needed I believe */ + if (rr->length > SSL3_RT_MAX_ENCRYPTED_LENGTH) + { + al=SSL_AD_RECORD_OVERFLOW; + SSLerr(SSL_F_DTLS1_PROCESS_RECORD,SSL_R_ENCRYPTED_LENGTH_TOO_LONG); + goto f_err; + } + + /* decrypt in place in 'rr->input' */ + rr->data=rr->input; + + enc_err = s->method->ssl3_enc->enc(s,0); + if (enc_err <= 0) + { + if (enc_err == 0) + /* SSLerr() and ssl3_send_alert() have been called */ + goto err; + + /* otherwise enc_err == -1 */ + goto decryption_failed_or_bad_record_mac; + } + +#ifdef TLS_DEBUG +printf("dec %d\n",rr->length); +{ unsigned int z; for (z=0; z<rr->length; z++) printf("%02X%c",rr->data[z],((z+1)%16)?' ':'\n'); } +printf("\n"); +#endif + + /* r->length is now the compressed data plus mac */ +if ( (sess == NULL) || + (s->enc_read_ctx == NULL) || + (s->read_hash == NULL)) + clear=1; + + if (!clear) + { + mac_size=EVP_MD_size(s->read_hash); + + if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH+mac_size) + { +#if 0 /* OK only for stream ciphers (then rr->length is visible from ciphertext anyway) */ + al=SSL_AD_RECORD_OVERFLOW; + SSLerr(SSL_F_DTLS1_PROCESS_RECORD,SSL_R_PRE_MAC_LENGTH_TOO_LONG); + goto f_err; +#else + goto decryption_failed_or_bad_record_mac; +#endif + } + /* check the MAC for rr->input (it's in mac_size bytes at the tail) */ + if (rr->length < mac_size) + { +#if 0 /* OK only for stream ciphers */ + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_DTLS1_PROCESS_RECORD,SSL_R_LENGTH_TOO_SHORT); + goto f_err; +#else + goto decryption_failed_or_bad_record_mac; +#endif + } + rr->length-=mac_size; + i=s->method->ssl3_enc->mac(s,md,0); + if (memcmp(md,&(rr->data[rr->length]),mac_size) != 0) + { + goto decryption_failed_or_bad_record_mac; + } + } + + /* r->length is now just compressed */ + if (s->expand != NULL) + { + if (rr->length > SSL3_RT_MAX_COMPRESSED_LENGTH) + { + al=SSL_AD_RECORD_OVERFLOW; + SSLerr(SSL_F_DTLS1_PROCESS_RECORD,SSL_R_COMPRESSED_LENGTH_TOO_LONG); + goto f_err; + } + if (!ssl3_do_uncompress(s)) + { + al=SSL_AD_DECOMPRESSION_FAILURE; + SSLerr(SSL_F_DTLS1_PROCESS_RECORD,SSL_R_BAD_DECOMPRESSION); + goto f_err; + } + } + + if (rr->length > SSL3_RT_MAX_PLAIN_LENGTH) + { + al=SSL_AD_RECORD_OVERFLOW; + SSLerr(SSL_F_DTLS1_PROCESS_RECORD,SSL_R_DATA_LENGTH_TOO_LONG); + goto f_err; + } + + rr->off=0; + /* So at this point the following is true + * ssl->s3->rrec.type is the type of record + * ssl->s3->rrec.length == number of bytes in record + * ssl->s3->rrec.off == offset to first valid byte + * ssl->s3->rrec.data == where to take bytes from, increment + * after use :-). + */ + + /* we have pulled in a full packet so zero things */ + s->packet_length=0; + dtls1_record_bitmap_update(s, &(s->d1->bitmap));/* Mark receipt of record. */ + return(1); + +decryption_failed_or_bad_record_mac: + /* Separate 'decryption_failed' alert was introduced with TLS 1.0, + * SSL 3.0 only has 'bad_record_mac'. But unless a decryption + * failure is directly visible from the ciphertext anyway, + * we should not reveal which kind of error occured -- this + * might become visible to an attacker (e.g. via logfile) */ + al=SSL_AD_BAD_RECORD_MAC; + SSLerr(SSL_F_DTLS1_PROCESS_RECORD,SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC); +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); +err: + return(0); +} + + +/* Call this to get a new input record. + * It will return <= 0 if more data is needed, normally due to an error + * or non-blocking IO. + * When it finishes, one packet has been decoded and can be found in + * ssl->s3->rrec.type - is the type of record + * ssl->s3->rrec.data, - data + * ssl->s3->rrec.length, - number of bytes + */ +/* used only by dtls1_read_bytes */ +int dtls1_get_record(SSL *s) + { + int ssl_major,ssl_minor,al; + int i,n; + SSL3_RECORD *rr; + SSL_SESSION *sess; + unsigned char *p; + short version; + DTLS1_BITMAP *bitmap; + unsigned int is_next_epoch; + + rr= &(s->s3->rrec); + sess=s->session; + + /* The epoch may have changed. If so, process all the + * pending records. This is a non-blocking operation. */ + if ( ! dtls1_process_buffered_records(s)) + return 0; + + /* if we're renegotiating, then there may be buffered records */ + if (dtls1_get_processed_record(s)) + return 1; + + /* get something from the wire */ +again: + /* check if we have the header */ + if ( (s->rstate != SSL_ST_READ_BODY) || + (s->packet_length < DTLS1_RT_HEADER_LENGTH)) + { + n=ssl3_read_n(s, DTLS1_RT_HEADER_LENGTH, s->s3->rbuf.len, 0); + /* read timeout is handled by dtls1_read_bytes */ + if (n <= 0) return(n); /* error or non-blocking */ + + OPENSSL_assert(s->packet_length == DTLS1_RT_HEADER_LENGTH); + + s->rstate=SSL_ST_READ_BODY; + + p=s->packet; + + /* Pull apart the header into the DTLS1_RECORD */ + rr->type= *(p++); + ssl_major= *(p++); + ssl_minor= *(p++); + version=(ssl_major<<8)|ssl_minor; + + /* sequence number is 64 bits, with top 2 bytes = epoch */ + n2s(p,rr->epoch); + + memcpy(&(s->s3->read_sequence[2]), p, 6); + p+=6; + + n2s(p,rr->length); + + /* Lets check version */ + if (!s->first_packet) + { + if (version != s->version) + { + SSLerr(SSL_F_DTLS1_GET_RECORD,SSL_R_WRONG_VERSION_NUMBER); + /* Send back error using their + * version number :-) */ + s->version=version; + al=SSL_AD_PROTOCOL_VERSION; + goto f_err; + } + } + + if ((version & 0xff00) != (DTLS1_VERSION & 0xff00)) + { + SSLerr(SSL_F_DTLS1_GET_RECORD,SSL_R_WRONG_VERSION_NUMBER); + goto err; + } + + if (rr->length > SSL3_RT_MAX_ENCRYPTED_LENGTH) + { + al=SSL_AD_RECORD_OVERFLOW; + SSLerr(SSL_F_DTLS1_GET_RECORD,SSL_R_PACKET_LENGTH_TOO_LONG); + goto f_err; + } + + /* now s->rstate == SSL_ST_READ_BODY */ + } + + /* s->rstate == SSL_ST_READ_BODY, get and decode the data */ + + if (rr->length > s->packet_length-DTLS1_RT_HEADER_LENGTH) + { + /* now s->packet_length == DTLS1_RT_HEADER_LENGTH */ + i=rr->length; + n=ssl3_read_n(s,i,i,1); + if (n <= 0) return(n); /* error or non-blocking io */ + + /* this packet contained a partial record, dump it */ + if ( n != i) + { + s->packet_length = 0; + goto again; + } + + /* now n == rr->length, + * and s->packet_length == DTLS1_RT_HEADER_LENGTH + rr->length */ + } + s->rstate=SSL_ST_READ_HEADER; /* set state for later operations */ + + /* match epochs. NULL means the packet is dropped on the floor */ + bitmap = dtls1_get_bitmap(s, rr, &is_next_epoch); + if ( bitmap == NULL) + { + s->packet_length = 0; /* dump this record */ + goto again; /* get another record */ + } + + /* check whether this is a repeat, or aged record */ + if ( ! dtls1_record_replay_check(s, bitmap, &(rr->seq_num))) + { + s->packet_length=0; /* dump this record */ + goto again; /* get another record */ + } + + /* just read a 0 length packet */ + if (rr->length == 0) goto again; + + /* If this record is from the next epoch (either HM or ALERT), buffer it + * since it cannot be processed at this time. + * Records from the next epoch are marked as received even though they are + * not processed, so as to prevent any potential resource DoS attack */ + if (is_next_epoch) + { + dtls1_record_bitmap_update(s, bitmap); + dtls1_buffer_record(s, &(s->d1->unprocessed_rcds), rr->seq_num); + s->packet_length = 0; + goto again; + } + + if ( ! dtls1_process_record(s)) + return(0); + + dtls1_clear_timeouts(s); /* done waiting */ + return(1); + +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); +err: + return(0); + } + +/* Return up to 'len' payload bytes received in 'type' records. + * 'type' is one of the following: + * + * - SSL3_RT_HANDSHAKE (when ssl3_get_message calls us) + * - SSL3_RT_APPLICATION_DATA (when ssl3_read calls us) + * - 0 (during a shutdown, no data has to be returned) + * + * If we don't have stored data to work from, read a SSL/TLS record first + * (possibly multiple records if we still don't have anything to return). + * + * This function must handle any surprises the peer may have for us, such as + * Alert records (e.g. close_notify), ChangeCipherSpec records (not really + * a surprise, but handled as if it were), or renegotiation requests. + * Also if record payloads contain fragments too small to process, we store + * them until there is enough for the respective protocol (the record protocol + * may use arbitrary fragmentation and even interleaving): + * Change cipher spec protocol + * just 1 byte needed, no need for keeping anything stored + * Alert protocol + * 2 bytes needed (AlertLevel, AlertDescription) + * Handshake protocol + * 4 bytes needed (HandshakeType, uint24 length) -- we just have + * to detect unexpected Client Hello and Hello Request messages + * here, anything else is handled by higher layers + * Application data protocol + * none of our business + */ +int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek) + { + int al,i,j,ret; + unsigned int n; + SSL3_RECORD *rr; + void (*cb)(const SSL *ssl,int type2,int val)=NULL; + + if (s->s3->rbuf.buf == NULL) /* Not initialized yet */ + if (!ssl3_setup_buffers(s)) + return(-1); + + /* XXX: check what the second '&& type' is about */ + if ((type && (type != SSL3_RT_APPLICATION_DATA) && + (type != SSL3_RT_HANDSHAKE) && type) || + (peek && (type != SSL3_RT_APPLICATION_DATA))) + { + SSLerr(SSL_F_DTLS1_READ_BYTES, ERR_R_INTERNAL_ERROR); + return -1; + } + + /* check whether there's a handshake message (client hello?) waiting */ + if ( (ret = have_handshake_fragment(s, type, buf, len, peek))) + return ret; + + /* Now s->d1->handshake_fragment_len == 0 if type == SSL3_RT_HANDSHAKE. */ + + if (!s->in_handshake && SSL_in_init(s)) + { + /* type == SSL3_RT_APPLICATION_DATA */ + i=s->handshake_func(s); + if (i < 0) return(i); + if (i == 0) + { + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE); + return(-1); + } + } + +start: + s->rwstate=SSL_NOTHING; + + /* s->s3->rrec.type - is the type of record + * s->s3->rrec.data, - data + * s->s3->rrec.off, - offset into 'data' for next read + * s->s3->rrec.length, - number of bytes. */ + rr = &(s->s3->rrec); + + /* get new packet if necessary */ + if ((rr->length == 0) || (s->rstate == SSL_ST_READ_BODY)) + { + ret=dtls1_get_record(s); + if (ret <= 0) + { + ret = dtls1_read_failed(s, ret); + /* anything other than a timeout is an error */ + if (ret <= 0) + return(ret); + else + goto start; + } + } + + /* we now have a packet which can be read and processed */ + + if (s->s3->change_cipher_spec /* set when we receive ChangeCipherSpec, + * reset by ssl3_get_finished */ + && (rr->type != SSL3_RT_HANDSHAKE)) + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_DATA_BETWEEN_CCS_AND_FINISHED); + goto err; + } + + /* If the other end has shut down, throw anything we read away + * (even in 'peek' mode) */ + if (s->shutdown & SSL_RECEIVED_SHUTDOWN) + { + rr->length=0; + s->rwstate=SSL_NOTHING; + return(0); + } + + + if (type == rr->type) /* SSL3_RT_APPLICATION_DATA or SSL3_RT_HANDSHAKE */ + { + /* make sure that we are not getting application data when we + * are doing a handshake for the first time */ + if (SSL_in_init(s) && (type == SSL3_RT_APPLICATION_DATA) && + (s->enc_read_ctx == NULL)) + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_APP_DATA_IN_HANDSHAKE); + goto f_err; + } + + if (len <= 0) return(len); + + if ((unsigned int)len > rr->length) + n = rr->length; + else + n = (unsigned int)len; + + memcpy(buf,&(rr->data[rr->off]),n); + if (!peek) + { + rr->length-=n; + rr->off+=n; + if (rr->length == 0) + { + s->rstate=SSL_ST_READ_HEADER; + rr->off=0; + } + } + return(n); + } + + + /* If we get here, then type != rr->type; if we have a handshake + * message, then it was unexpected (Hello Request or Client Hello). */ + + /* In case of record types for which we have 'fragment' storage, + * fill that so that we can process the data at a fixed place. + */ + { + unsigned int k, dest_maxlen = 0; + unsigned char *dest = NULL; + unsigned int *dest_len = NULL; + + if (rr->type == SSL3_RT_HANDSHAKE) + { + dest_maxlen = sizeof s->d1->handshake_fragment; + dest = s->d1->handshake_fragment; + dest_len = &s->d1->handshake_fragment_len; + } + else if (rr->type == SSL3_RT_ALERT) + { + dest_maxlen = sizeof(s->d1->alert_fragment); + dest = s->d1->alert_fragment; + dest_len = &s->d1->alert_fragment_len; + } + /* else it's a CCS message, or it's wrong */ + else if (rr->type != SSL3_RT_CHANGE_CIPHER_SPEC) + { + /* Not certain if this is the right error handling */ + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_UNEXPECTED_RECORD); + goto f_err; + } + + + if (dest_maxlen > 0) + { + /* XDTLS: In a pathalogical case, the Client Hello + * may be fragmented--don't always expect dest_maxlen bytes */ + if ( rr->length < dest_maxlen) + { + s->rstate=SSL_ST_READ_HEADER; + rr->length = 0; + goto start; + } + + /* now move 'n' bytes: */ + for ( k = 0; k < dest_maxlen; k++) + { + dest[k] = rr->data[rr->off++]; + rr->length--; + } + *dest_len = dest_maxlen; + } + } + + /* s->d1->handshake_fragment_len == 12 iff rr->type == SSL3_RT_HANDSHAKE; + * s->d1->alert_fragment_len == 7 iff rr->type == SSL3_RT_ALERT. + * (Possibly rr is 'empty' now, i.e. rr->length may be 0.) */ + + /* If we are a client, check for an incoming 'Hello Request': */ + if ((!s->server) && + (s->d1->handshake_fragment_len >= DTLS1_HM_HEADER_LENGTH) && + (s->d1->handshake_fragment[0] == SSL3_MT_HELLO_REQUEST) && + (s->session != NULL) && (s->session->cipher != NULL)) + { + s->d1->handshake_fragment_len = 0; + + if ((s->d1->handshake_fragment[1] != 0) || + (s->d1->handshake_fragment[2] != 0) || + (s->d1->handshake_fragment[3] != 0)) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_BAD_HELLO_REQUEST); + goto err; + } + + /* no need to check sequence number on HELLO REQUEST messages */ + + if (s->msg_callback) + s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, + s->d1->handshake_fragment, 4, s, s->msg_callback_arg); + + if (SSL_is_init_finished(s) && + !(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS) && + !s->s3->renegotiate) + { + ssl3_renegotiate(s); + if (ssl3_renegotiate_check(s)) + { + i=s->handshake_func(s); + if (i < 0) return(i); + if (i == 0) + { + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE); + return(-1); + } + + if (!(s->mode & SSL_MODE_AUTO_RETRY)) + { + if (s->s3->rbuf.left == 0) /* no read-ahead left? */ + { + BIO *bio; + /* In the case where we try to read application data, + * but we trigger an SSL handshake, we return -1 with + * the retry option set. Otherwise renegotiation may + * cause nasty problems in the blocking world */ + s->rwstate=SSL_READING; + bio=SSL_get_rbio(s); + BIO_clear_retry_flags(bio); + BIO_set_retry_read(bio); + return(-1); + } + } + } + } + /* we either finished a handshake or ignored the request, + * now try again to obtain the (application) data we were asked for */ + goto start; + } + + if (s->d1->alert_fragment_len >= DTLS1_AL_HEADER_LENGTH) + { + int alert_level = s->d1->alert_fragment[0]; + int alert_descr = s->d1->alert_fragment[1]; + + s->d1->alert_fragment_len = 0; + + if (s->msg_callback) + s->msg_callback(0, s->version, SSL3_RT_ALERT, + s->d1->alert_fragment, 2, s, s->msg_callback_arg); + + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + if (cb != NULL) + { + j = (alert_level << 8) | alert_descr; + cb(s, SSL_CB_READ_ALERT, j); + } + + if (alert_level == 1) /* warning */ + { + s->s3->warn_alert = alert_descr; + if (alert_descr == SSL_AD_CLOSE_NOTIFY) + { + s->shutdown |= SSL_RECEIVED_SHUTDOWN; + return(0); + } +#if 0 + /* XXX: this is a possible improvement in the future */ + /* now check if it's a missing record */ + if (alert_descr == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE) + { + unsigned short seq; + unsigned int frag_off; + unsigned char *p = &(s->d1->alert_fragment[2]); + + n2s(p, seq); + n2l3(p, frag_off); + + dtls1_retransmit_message(s, seq, frag_off, &found); + if ( ! found && SSL_in_init(s)) + { + /* fprintf( stderr,"in init = %d\n", SSL_in_init(s)); */ + /* requested a message not yet sent, + send an alert ourselves */ + ssl3_send_alert(s,SSL3_AL_WARNING, + DTLS1_AD_MISSING_HANDSHAKE_MESSAGE); + } + } +#endif + } + else if (alert_level == 2) /* fatal */ + { + char tmp[16]; + + s->rwstate=SSL_NOTHING; + s->s3->fatal_alert = alert_descr; + SSLerr(SSL_F_DTLS1_READ_BYTES, SSL_AD_REASON_OFFSET + alert_descr); + BIO_snprintf(tmp,sizeof tmp,"%d",alert_descr); + ERR_add_error_data(2,"SSL alert number ",tmp); + s->shutdown|=SSL_RECEIVED_SHUTDOWN; + SSL_CTX_remove_session(s->ctx,s->session); + return(0); + } + else + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_UNKNOWN_ALERT_TYPE); + goto f_err; + } + + goto start; + } + + if (s->shutdown & SSL_SENT_SHUTDOWN) /* but we have not received a shutdown */ + { + s->rwstate=SSL_NOTHING; + rr->length=0; + return(0); + } + + if (rr->type == SSL3_RT_CHANGE_CIPHER_SPEC) + { + struct ccs_header_st ccs_hdr; + + dtls1_get_ccs_header(rr->data, &ccs_hdr); + + if ( ccs_hdr.seq == s->d1->handshake_read_seq) + { + /* 'Change Cipher Spec' is just a single byte, so we know + * exactly what the record payload has to look like */ + /* XDTLS: check that epoch is consistent */ + if ( (rr->length != DTLS1_CCS_HEADER_LENGTH) || + (rr->off != 0) || (rr->data[0] != SSL3_MT_CCS)) + { + i=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_BAD_CHANGE_CIPHER_SPEC); + goto err; + } + + rr->length=0; + + if (s->msg_callback) + s->msg_callback(0, s->version, SSL3_RT_CHANGE_CIPHER_SPEC, + rr->data, 1, s, s->msg_callback_arg); + + s->s3->change_cipher_spec=1; + if (!ssl3_do_change_cipher_spec(s)) + goto err; + + /* do this whenever CCS is processed */ + dtls1_reset_seq_numbers(s, SSL3_CC_READ); + + /* handshake read seq is reset upon handshake completion */ + s->d1->handshake_read_seq++; + + goto start; + } + else + { + rr->length = 0; + goto start; + } + } + + /* Unexpected handshake message (Client Hello, or protocol violation) */ + if ((s->d1->handshake_fragment_len >= DTLS1_HM_HEADER_LENGTH) && + !s->in_handshake) + { + struct hm_header_st msg_hdr; + + /* this may just be a stale retransmit */ + dtls1_get_message_header(rr->data, &msg_hdr); + if( rr->epoch != s->d1->r_epoch) + { + rr->length = 0; + goto start; + } + + if (((s->state&SSL_ST_MASK) == SSL_ST_OK) && + !(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS)) + { +#if 0 /* worked only because C operator preferences are not as expected (and + * because this is not really needed for clients except for detecting + * protocol violations): */ + s->state=SSL_ST_BEFORE|(s->server) + ?SSL_ST_ACCEPT + :SSL_ST_CONNECT; +#else + s->state = s->server ? SSL_ST_ACCEPT : SSL_ST_CONNECT; +#endif + s->new_session=1; + } + i=s->handshake_func(s); + if (i < 0) return(i); + if (i == 0) + { + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE); + return(-1); + } + + if (!(s->mode & SSL_MODE_AUTO_RETRY)) + { + if (s->s3->rbuf.left == 0) /* no read-ahead left? */ + { + BIO *bio; + /* In the case where we try to read application data, + * but we trigger an SSL handshake, we return -1 with + * the retry option set. Otherwise renegotiation may + * cause nasty problems in the blocking world */ + s->rwstate=SSL_READING; + bio=SSL_get_rbio(s); + BIO_clear_retry_flags(bio); + BIO_set_retry_read(bio); + return(-1); + } + } + goto start; + } + + switch (rr->type) + { + default: +#ifndef OPENSSL_NO_TLS + /* TLS just ignores unknown message types */ + if (s->version == TLS1_VERSION) + { + rr->length = 0; + goto start; + } +#endif + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_UNEXPECTED_RECORD); + goto f_err; + case SSL3_RT_CHANGE_CIPHER_SPEC: + case SSL3_RT_ALERT: + case SSL3_RT_HANDSHAKE: + /* we already handled all of these, with the possible exception + * of SSL3_RT_HANDSHAKE when s->in_handshake is set, but that + * should not happen when type != rr->type */ + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_DTLS1_READ_BYTES,ERR_R_INTERNAL_ERROR); + goto f_err; + case SSL3_RT_APPLICATION_DATA: + /* At this point, we were expecting handshake data, + * but have application data. If the library was + * running inside ssl3_read() (i.e. in_read_app_data + * is set) and it makes sense to read application data + * at this point (session renegotiation not yet started), + * we will indulge it. + */ + if (s->s3->in_read_app_data && + (s->s3->total_renegotiations != 0) && + (( + (s->state & SSL_ST_CONNECT) && + (s->state >= SSL3_ST_CW_CLNT_HELLO_A) && + (s->state <= SSL3_ST_CR_SRVR_HELLO_A) + ) || ( + (s->state & SSL_ST_ACCEPT) && + (s->state <= SSL3_ST_SW_HELLO_REQ_A) && + (s->state >= SSL3_ST_SR_CLNT_HELLO_A) + ) + )) + { + s->s3->in_read_app_data=2; + return(-1); + } + else + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_UNEXPECTED_RECORD); + goto f_err; + } + } + /* not reached */ + +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); +err: + return(-1); + } + +int +dtls1_write_app_data_bytes(SSL *s, int type, const void *buf_, int len) + { + unsigned int n,tot; + int i; + + if (SSL_in_init(s) && !s->in_handshake) + { + i=s->handshake_func(s); + if (i < 0) return(i); + if (i == 0) + { + SSLerr(SSL_F_DTLS1_WRITE_APP_DATA_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE); + return -1; + } + } + + tot = s->s3->wnum; + n = len - tot; + + while( n) + { + /* dtls1_write_bytes sends one record at a time, sized according to + * the currently known MTU */ + i = dtls1_write_bytes(s, type, buf_, len); + if (i <= 0) return i; + + if ((i == (int)n) || + (type == SSL3_RT_APPLICATION_DATA && + (s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE))) + { + /* next chunk of data should get another prepended empty fragment + * in ciphersuites with known-IV weakness: */ + s->s3->empty_fragment_done = 0; + return tot+i; + } + + tot += i; + n-=i; + } + + return tot; + } + + + /* this only happens when a client hello is received and a handshake + * is started. */ +static int +have_handshake_fragment(SSL *s, int type, unsigned char *buf, + int len, int peek) + { + + if ((type == SSL3_RT_HANDSHAKE) && (s->d1->handshake_fragment_len > 0)) + /* (partially) satisfy request from storage */ + { + unsigned char *src = s->d1->handshake_fragment; + unsigned char *dst = buf; + unsigned int k,n; + + /* peek == 0 */ + n = 0; + while ((len > 0) && (s->d1->handshake_fragment_len > 0)) + { + *dst++ = *src++; + len--; s->d1->handshake_fragment_len--; + n++; + } + /* move any remaining fragment bytes: */ + for (k = 0; k < s->d1->handshake_fragment_len; k++) + s->d1->handshake_fragment[k] = *src++; + return n; + } + + return 0; + } + + + + +/* Call this to write data in records of type 'type' + * It will return <= 0 if not all data has been sent or non-blocking IO. + */ +int dtls1_write_bytes(SSL *s, int type, const void *buf_, int len) + { + const unsigned char *buf=buf_; + unsigned int tot,n,nw; + int i; + unsigned int mtu; + + s->rwstate=SSL_NOTHING; + tot=s->s3->wnum; + + n=(len-tot); + + /* handshake layer figures out MTU for itself, but data records + * are also sent through this interface, so need to figure out MTU */ +#if 0 + mtu = BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_GET_MTU, 0, NULL); + mtu += DTLS1_HM_HEADER_LENGTH; /* HM already inserted */ +#endif + mtu = s->d1->mtu; + + if (mtu > SSL3_RT_MAX_PLAIN_LENGTH) + mtu = SSL3_RT_MAX_PLAIN_LENGTH; + + if (n > mtu) + nw=mtu; + else + nw=n; + + i=do_dtls1_write(s, type, &(buf[tot]), nw, 0); + if (i <= 0) + { + s->s3->wnum=tot; + return i; + } + + if ( (int)s->s3->wnum + i == len) + s->s3->wnum = 0; + else + s->s3->wnum += i; + + return tot + i; + } + +int do_dtls1_write(SSL *s, int type, const unsigned char *buf, unsigned int len, int create_empty_fragment) + { + unsigned char *p,*pseq; + int i,mac_size,clear=0; + int prefix_len = 0; + SSL3_RECORD *wr; + SSL3_BUFFER *wb; + SSL_SESSION *sess; + int bs; + + /* first check if there is a SSL3_BUFFER still being written + * out. This will happen with non blocking IO */ + if (s->s3->wbuf.left != 0) + { + OPENSSL_assert(0); /* XDTLS: want to see if we ever get here */ + return(ssl3_write_pending(s,type,buf,len)); + } + + /* If we have an alert to send, lets send it */ + if (s->s3->alert_dispatch) + { + i=s->method->ssl_dispatch_alert(s); + if (i <= 0) + return(i); + /* if it went, fall through and send more stuff */ + } + + if (len == 0 && !create_empty_fragment) + return 0; + + wr= &(s->s3->wrec); + wb= &(s->s3->wbuf); + sess=s->session; + + if ( (sess == NULL) || + (s->enc_write_ctx == NULL) || + (s->write_hash == NULL)) + clear=1; + + if (clear) + mac_size=0; + else + mac_size=EVP_MD_size(s->write_hash); + + /* DTLS implements explicit IV, so no need for empty fragments */ +#if 0 + /* 'create_empty_fragment' is true only when this function calls itself */ + if (!clear && !create_empty_fragment && !s->s3->empty_fragment_done + && SSL_version(s) != DTLS1_VERSION) + { + /* countermeasure against known-IV weakness in CBC ciphersuites + * (see http://www.openssl.org/~bodo/tls-cbc.txt) + */ + + if (s->s3->need_empty_fragments && type == SSL3_RT_APPLICATION_DATA) + { + /* recursive function call with 'create_empty_fragment' set; + * this prepares and buffers the data for an empty fragment + * (these 'prefix_len' bytes are sent out later + * together with the actual payload) */ + prefix_len = s->method->do_ssl_write(s, type, buf, 0, 1); + if (prefix_len <= 0) + goto err; + + if (s->s3->wbuf.len < (size_t)prefix_len + SSL3_RT_MAX_PACKET_SIZE) + { + /* insufficient space */ + SSLerr(SSL_F_DO_DTLS1_WRITE, ERR_R_INTERNAL_ERROR); + goto err; + } + } + + s->s3->empty_fragment_done = 1; + } +#endif + + p = wb->buf + prefix_len; + + /* write the header */ + + *(p++)=type&0xff; + wr->type=type; + + *(p++)=(s->version>>8); + *(p++)=s->version&0xff; + + /* field where we are to write out packet epoch, seq num and len */ + pseq=p; + p+=10; + + /* lets setup the record stuff. */ + + /* Make space for the explicit IV in case of CBC. + * (this is a bit of a boundary violation, but what the heck). + */ + if ( s->enc_write_ctx && + (EVP_CIPHER_mode( s->enc_write_ctx->cipher ) & EVP_CIPH_CBC_MODE)) + bs = EVP_CIPHER_block_size(s->enc_write_ctx->cipher); + else + bs = 0; + + wr->data=p + bs; /* make room for IV in case of CBC */ + wr->length=(int)len; + wr->input=(unsigned char *)buf; + + /* we now 'read' from wr->input, wr->length bytes into + * wr->data */ + + /* first we compress */ + if (s->compress != NULL) + { + if (!ssl3_do_compress(s)) + { + SSLerr(SSL_F_DO_DTLS1_WRITE,SSL_R_COMPRESSION_FAILURE); + goto err; + } + } + else + { + memcpy(wr->data,wr->input,wr->length); + wr->input=wr->data; + } + + /* we should still have the output to wr->data and the input + * from wr->input. Length should be wr->length. + * wr->data still points in the wb->buf */ + + if (mac_size != 0) + { + s->method->ssl3_enc->mac(s,&(p[wr->length + bs]),1); + wr->length+=mac_size; + } + + /* this is true regardless of mac size */ + wr->input=p; + wr->data=p; + + + /* ssl3_enc can only have an error on read */ + wr->length += bs; /* bs != 0 in case of CBC. The enc fn provides + * the randomness */ + s->method->ssl3_enc->enc(s,1); + + /* record length after mac and block padding */ +/* if (type == SSL3_RT_APPLICATION_DATA || + (type == SSL3_RT_ALERT && ! SSL_in_init(s))) */ + + /* there's only one epoch between handshake and app data */ + + s2n(s->d1->w_epoch, pseq); + + /* XDTLS: ?? */ +/* else + s2n(s->d1->handshake_epoch, pseq); */ + + memcpy(pseq, &(s->s3->write_sequence[2]), 6); + pseq+=6; + s2n(wr->length,pseq); + + /* we should now have + * wr->data pointing to the encrypted data, which is + * wr->length long */ + wr->type=type; /* not needed but helps for debugging */ + wr->length+=DTLS1_RT_HEADER_LENGTH; + +#if 0 /* this is now done at the message layer */ + /* buffer the record, making it easy to handle retransmits */ + if ( type == SSL3_RT_HANDSHAKE || type == SSL3_RT_CHANGE_CIPHER_SPEC) + dtls1_buffer_record(s, wr->data, wr->length, + *((PQ_64BIT *)&(s->s3->write_sequence[0]))); +#endif + + ssl3_record_sequence_update(&(s->s3->write_sequence[0])); + + if (create_empty_fragment) + { + /* we are in a recursive call; + * just return the length, don't write out anything here + */ + return wr->length; + } + + /* now let's set up wb */ + wb->left = prefix_len + wr->length; + wb->offset = 0; + + /* memorize arguments so that ssl3_write_pending can detect bad write retries later */ + s->s3->wpend_tot=len; + s->s3->wpend_buf=buf; + s->s3->wpend_type=type; + s->s3->wpend_ret=len; + + /* we now just need to write the buffer */ + return ssl3_write_pending(s,type,buf,len); +err: + return -1; + } + + + +static int dtls1_record_replay_check(SSL *s, DTLS1_BITMAP *bitmap, + PQ_64BIT *seq_num) + { +#if PQ_64BIT_IS_INTEGER + PQ_64BIT mask = 0x0000000000000001L; +#endif + PQ_64BIT rcd_num, tmp; + + pq_64bit_init(&rcd_num); + pq_64bit_init(&tmp); + + /* this is the sequence number for the record just read */ + pq_64bit_bin2num(&rcd_num, s->s3->read_sequence, 8); + + + if (pq_64bit_gt(&rcd_num, &(bitmap->max_seq_num)) || + pq_64bit_eq(&rcd_num, &(bitmap->max_seq_num))) + { + pq_64bit_assign(seq_num, &rcd_num); + pq_64bit_free(&rcd_num); + pq_64bit_free(&tmp); + return 1; /* this record is new */ + } + + pq_64bit_sub(&tmp, &(bitmap->max_seq_num), &rcd_num); + + if ( pq_64bit_get_word(&tmp) > bitmap->length) + { + pq_64bit_free(&rcd_num); + pq_64bit_free(&tmp); + return 0; /* stale, outside the window */ + } + +#if PQ_64BIT_IS_BIGNUM + { + int offset; + pq_64bit_sub(&tmp, &(bitmap->max_seq_num), &rcd_num); + pq_64bit_sub_word(&tmp, 1); + offset = pq_64bit_get_word(&tmp); + if ( pq_64bit_is_bit_set(&(bitmap->map), offset)) + { + pq_64bit_free(&rcd_num); + pq_64bit_free(&tmp); + return 0; + } + } +#else + mask <<= (bitmap->max_seq_num - rcd_num - 1); + if (bitmap->map & mask) + return 0; /* record previously received */ +#endif + + pq_64bit_assign(seq_num, &rcd_num); + pq_64bit_free(&rcd_num); + pq_64bit_free(&tmp); + return 1; + } + + +static void dtls1_record_bitmap_update(SSL *s, DTLS1_BITMAP *bitmap) + { + unsigned int shift; + PQ_64BIT rcd_num; + PQ_64BIT tmp; + PQ_64BIT_CTX *ctx; + + pq_64bit_init(&rcd_num); + pq_64bit_init(&tmp); + + pq_64bit_bin2num(&rcd_num, s->s3->read_sequence, 8); + + /* unfortunate code complexity due to 64-bit manipulation support + * on 32-bit machines */ + if ( pq_64bit_gt(&rcd_num, &(bitmap->max_seq_num)) || + pq_64bit_eq(&rcd_num, &(bitmap->max_seq_num))) + { + pq_64bit_sub(&tmp, &rcd_num, &(bitmap->max_seq_num)); + pq_64bit_add_word(&tmp, 1); + + shift = (unsigned int)pq_64bit_get_word(&tmp); + + pq_64bit_lshift(&(tmp), &(bitmap->map), shift); + pq_64bit_assign(&(bitmap->map), &tmp); + + pq_64bit_set_bit(&(bitmap->map), 0); + pq_64bit_add_word(&rcd_num, 1); + pq_64bit_assign(&(bitmap->max_seq_num), &rcd_num); + + pq_64bit_assign_word(&tmp, 1); + pq_64bit_lshift(&tmp, &tmp, bitmap->length); + ctx = pq_64bit_ctx_new(&ctx); + pq_64bit_mod(&(bitmap->map), &(bitmap->map), &tmp, ctx); + pq_64bit_ctx_free(ctx); + } + else + { + pq_64bit_sub(&tmp, &(bitmap->max_seq_num), &rcd_num); + pq_64bit_sub_word(&tmp, 1); + shift = (unsigned int)pq_64bit_get_word(&tmp); + + pq_64bit_set_bit(&(bitmap->map), shift); + } + + pq_64bit_free(&rcd_num); + pq_64bit_free(&tmp); + } + + +int dtls1_dispatch_alert(SSL *s) + { + int i,j; + void (*cb)(const SSL *ssl,int type,int val)=NULL; + unsigned char buf[2 + 2 + 3]; /* alert level + alert desc + message seq +frag_off */ + unsigned char *ptr = &buf[0]; + + s->s3->alert_dispatch=0; + + memset(buf, 0x00, sizeof(buf)); + *ptr++ = s->s3->send_alert[0]; + *ptr++ = s->s3->send_alert[1]; + + if (s->s3->send_alert[1] == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE) + { + s2n(s->d1->handshake_read_seq, ptr); +#if 0 + if ( s->d1->r_msg_hdr.frag_off == 0) /* waiting for a new msg */ + + else + s2n(s->d1->r_msg_hdr.seq, ptr); /* partial msg read */ +#endif + +#if 0 + fprintf(stderr, "s->d1->handshake_read_seq = %d, s->d1->r_msg_hdr.seq = %d\n",s->d1->handshake_read_seq,s->d1->r_msg_hdr.seq); +#endif + l2n3(s->d1->r_msg_hdr.frag_off, ptr); + } + + i = do_dtls1_write(s, SSL3_RT_ALERT, &buf[0], sizeof(buf), 0); + if (i <= 0) + { + s->s3->alert_dispatch=1; + /* fprintf( stderr, "not done with alert\n" ); */ + } + else + { + if ( s->s3->send_alert[0] == SSL3_AL_FATAL || + s->s3->send_alert[1] == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE) + (void)BIO_flush(s->wbio); + + if (s->msg_callback) + s->msg_callback(1, s->version, SSL3_RT_ALERT, s->s3->send_alert, + 2, s, s->msg_callback_arg); + + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + if (cb != NULL) + { + j=(s->s3->send_alert[0]<<8)|s->s3->send_alert[1]; + cb(s,SSL_CB_WRITE_ALERT,j); + } + } + return(i); + } + + +static DTLS1_BITMAP * +dtls1_get_bitmap(SSL *s, SSL3_RECORD *rr, unsigned int *is_next_epoch) + { + + *is_next_epoch = 0; + + /* In current epoch, accept HM, CCS, DATA, & ALERT */ + if (rr->epoch == s->d1->r_epoch) + return &s->d1->bitmap; + + /* Only HM and ALERT messages can be from the next epoch */ + else if (rr->epoch == (unsigned long)(s->d1->r_epoch + 1) && + (rr->type == SSL3_RT_HANDSHAKE || + rr->type == SSL3_RT_ALERT)) + { + *is_next_epoch = 1; + return &s->d1->next_bitmap; + } + + return NULL; + } + +#if 0 +static int +dtls1_record_needs_buffering(SSL *s, SSL3_RECORD *rr, unsigned short *priority, + unsigned long *offset) + { + + /* alerts are passed up immediately */ + if ( rr->type == SSL3_RT_APPLICATION_DATA || + rr->type == SSL3_RT_ALERT) + return 0; + + /* Only need to buffer if a handshake is underway. + * (this implies that Hello Request and Client Hello are passed up + * immediately) */ + if ( SSL_in_init(s)) + { + unsigned char *data = rr->data; + /* need to extract the HM/CCS sequence number here */ + if ( rr->type == SSL3_RT_HANDSHAKE || + rr->type == SSL3_RT_CHANGE_CIPHER_SPEC) + { + unsigned short seq_num; + struct hm_header_st msg_hdr; + struct ccs_header_st ccs_hdr; + + if ( rr->type == SSL3_RT_HANDSHAKE) + { + dtls1_get_message_header(data, &msg_hdr); + seq_num = msg_hdr.seq; + *offset = msg_hdr.frag_off; + } + else + { + dtls1_get_ccs_header(data, &ccs_hdr); + seq_num = ccs_hdr.seq; + *offset = 0; + } + + /* this is either a record we're waiting for, or a + * retransmit of something we happened to previously + * receive (higher layers will drop the repeat silently */ + if ( seq_num < s->d1->handshake_read_seq) + return 0; + if (rr->type == SSL3_RT_HANDSHAKE && + seq_num == s->d1->handshake_read_seq && + msg_hdr.frag_off < s->d1->r_msg_hdr.frag_off) + return 0; + else if ( seq_num == s->d1->handshake_read_seq && + (rr->type == SSL3_RT_CHANGE_CIPHER_SPEC || + msg_hdr.frag_off == s->d1->r_msg_hdr.frag_off)) + return 0; + else + { + *priority = seq_num; + return 1; + } + } + else /* unknown record type */ + return 0; + } + + return 0; + } +#endif + +void +dtls1_reset_seq_numbers(SSL *s, int rw) + { + unsigned char *seq; + unsigned int seq_bytes = sizeof(s->s3->read_sequence); + + if ( rw & SSL3_CC_READ) + { + seq = s->s3->read_sequence; + s->d1->r_epoch++; + + pq_64bit_assign(&(s->d1->bitmap.map), &(s->d1->next_bitmap.map)); + s->d1->bitmap.length = s->d1->next_bitmap.length; + pq_64bit_assign(&(s->d1->bitmap.max_seq_num), + &(s->d1->next_bitmap.max_seq_num)); + + pq_64bit_free(&(s->d1->next_bitmap.map)); + pq_64bit_free(&(s->d1->next_bitmap.max_seq_num)); + memset(&(s->d1->next_bitmap), 0x00, sizeof(DTLS1_BITMAP)); + pq_64bit_init(&(s->d1->next_bitmap.map)); + pq_64bit_init(&(s->d1->next_bitmap.max_seq_num)); + } + else + { + seq = s->s3->write_sequence; + s->d1->w_epoch++; + } + + memset(seq, 0x00, seq_bytes); + } + +#if PQ_64BIT_IS_INTEGER +static PQ_64BIT +bytes_to_long_long(unsigned char *bytes, PQ_64BIT *num) + { + PQ_64BIT _num; + + _num = (((PQ_64BIT)bytes[0]) << 56) | + (((PQ_64BIT)bytes[1]) << 48) | + (((PQ_64BIT)bytes[2]) << 40) | + (((PQ_64BIT)bytes[3]) << 32) | + (((PQ_64BIT)bytes[4]) << 24) | + (((PQ_64BIT)bytes[5]) << 16) | + (((PQ_64BIT)bytes[6]) << 8) | + (((PQ_64BIT)bytes[7]) ); + + *num = _num ; + return _num; + } +#endif + + +static void +dtls1_clear_timeouts(SSL *s) + { + memset(&(s->d1->timeout), 0x00, sizeof(struct dtls1_timeout_st)); + } diff --git a/ssl/d1_srvr.c b/ssl/d1_srvr.c new file mode 100644 index 000000000000..475e6095fd80 --- /dev/null +++ b/ssl/d1_srvr.c @@ -0,0 +1,1130 @@ +/* ssl/d1_srvr.c */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "ssl_locl.h" +#include <openssl/buffer.h> +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/evp.h> +#include <openssl/x509.h> +#include <openssl/md5.h> +#ifndef OPENSSL_NO_DH +#include <openssl/dh.h> +#endif + +static SSL_METHOD *dtls1_get_server_method(int ver); +static int dtls1_send_hello_verify_request(SSL *s); + +static SSL_METHOD *dtls1_get_server_method(int ver) + { + if (ver == DTLS1_VERSION) + return(DTLSv1_server_method()); + else + return(NULL); + } + +IMPLEMENT_dtls1_meth_func(DTLSv1_server_method, + dtls1_accept, + ssl_undefined_function, + dtls1_get_server_method) + +int dtls1_accept(SSL *s) + { + BUF_MEM *buf; + unsigned long l,Time=(unsigned long)time(NULL); + void (*cb)(const SSL *ssl,int type,int val)=NULL; + long num1; + int ret= -1; + int new_state,state,skip=0; + + RAND_add(&Time,sizeof(Time),0); + ERR_clear_error(); + clear_sys_error(); + + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + /* init things to blank */ + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); + + if (s->cert == NULL) + { + SSLerr(SSL_F_DTLS1_ACCEPT,SSL_R_NO_CERTIFICATE_SET); + return(-1); + } + + for (;;) + { + state=s->state; + + switch (s->state) + { + case SSL_ST_RENEGOTIATE: + s->new_session=1; + /* s->state=SSL_ST_ACCEPT; */ + + case SSL_ST_BEFORE: + case SSL_ST_ACCEPT: + case SSL_ST_BEFORE|SSL_ST_ACCEPT: + case SSL_ST_OK|SSL_ST_ACCEPT: + + s->server=1; + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); + + if ((s->version & 0xff00) != (DTLS1_VERSION & 0xff00)) + { + SSLerr(SSL_F_DTLS1_ACCEPT, ERR_R_INTERNAL_ERROR); + return -1; + } + s->type=SSL_ST_ACCEPT; + + if (s->init_buf == NULL) + { + if ((buf=BUF_MEM_new()) == NULL) + { + ret= -1; + goto end; + } + if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH)) + { + ret= -1; + goto end; + } + s->init_buf=buf; + } + + if (!ssl3_setup_buffers(s)) + { + ret= -1; + goto end; + } + + s->init_num=0; + + if (s->state != SSL_ST_RENEGOTIATE) + { + /* Ok, we now need to push on a buffering BIO so that + * the output is sent in a way that TCP likes :-) + */ + if (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; } + + ssl3_init_finished_mac(s); + s->state=SSL3_ST_SR_CLNT_HELLO_A; + s->ctx->stats.sess_accept++; + } + else + { + /* s->state == SSL_ST_RENEGOTIATE, + * we will just send a HelloRequest */ + s->ctx->stats.sess_accept_renegotiate++; + s->state=SSL3_ST_SW_HELLO_REQ_A; + } + + if ( (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE)) + s->d1->send_cookie = 1; + else + s->d1->send_cookie = 0; + + break; + + case SSL3_ST_SW_HELLO_REQ_A: + case SSL3_ST_SW_HELLO_REQ_B: + + s->shutdown=0; + ret=dtls1_send_hello_request(s); + if (ret <= 0) goto end; + s->s3->tmp.next_state=SSL3_ST_SW_HELLO_REQ_C; + s->state=SSL3_ST_SW_FLUSH; + s->init_num=0; + + ssl3_init_finished_mac(s); + break; + + case SSL3_ST_SW_HELLO_REQ_C: + s->state=SSL_ST_OK; + break; + + case SSL3_ST_SR_CLNT_HELLO_A: + case SSL3_ST_SR_CLNT_HELLO_B: + case SSL3_ST_SR_CLNT_HELLO_C: + + s->shutdown=0; + ret=ssl3_get_client_hello(s); + if (ret <= 0) goto end; + s->new_session = 2; + + if ( s->d1->send_cookie) + s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A; + else + s->state = SSL3_ST_SW_SRVR_HELLO_A; + + s->init_num=0; + break; + + case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A: + case DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B: + + ret = dtls1_send_hello_verify_request(s); + if ( ret <= 0) goto end; + s->d1->send_cookie = 0; + s->state=SSL3_ST_SW_FLUSH; + s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A; + break; + + case SSL3_ST_SW_SRVR_HELLO_A: + case SSL3_ST_SW_SRVR_HELLO_B: + ret=dtls1_send_server_hello(s); + if (ret <= 0) goto end; + + if (s->hit) + s->state=SSL3_ST_SW_CHANGE_A; + else + s->state=SSL3_ST_SW_CERT_A; + s->init_num=0; + break; + + case SSL3_ST_SW_CERT_A: + case SSL3_ST_SW_CERT_B: + /* Check if it is anon DH */ + if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) + { + ret=dtls1_send_server_certificate(s); + if (ret <= 0) goto end; + } + else + skip=1; + s->state=SSL3_ST_SW_KEY_EXCH_A; + s->init_num=0; + break; + + case SSL3_ST_SW_KEY_EXCH_A: + case SSL3_ST_SW_KEY_EXCH_B: + l=s->s3->tmp.new_cipher->algorithms; + + /* clear this, it may get reset by + * send_server_key_exchange */ + if ((s->options & SSL_OP_EPHEMERAL_RSA) +#ifndef OPENSSL_NO_KRB5 + && !(l & SSL_KRB5) +#endif /* OPENSSL_NO_KRB5 */ + ) + /* option SSL_OP_EPHEMERAL_RSA sends temporary RSA key + * even when forbidden by protocol specs + * (handshake may fail as clients are not required to + * be able to handle this) */ + s->s3->tmp.use_rsa_tmp=1; + else + s->s3->tmp.use_rsa_tmp=0; + + /* only send if a DH key exchange, fortezza or + * RSA but we have a sign only certificate */ + if (s->s3->tmp.use_rsa_tmp + || (l & (SSL_DH|SSL_kFZA)) + || ((l & SSL_kRSA) + && (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL + || (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) + && EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher) + ) + ) + ) + ) + { + ret=dtls1_send_server_key_exchange(s); + if (ret <= 0) goto end; + } + else + skip=1; + + s->state=SSL3_ST_SW_CERT_REQ_A; + s->init_num=0; + break; + + case SSL3_ST_SW_CERT_REQ_A: + case SSL3_ST_SW_CERT_REQ_B: + if (/* don't request cert unless asked for it: */ + !(s->verify_mode & SSL_VERIFY_PEER) || + /* if SSL_VERIFY_CLIENT_ONCE is set, + * don't request cert during re-negotiation: */ + ((s->session->peer != NULL) && + (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)) || + /* never request cert in anonymous ciphersuites + * (see section "Certificate request" in SSL 3 drafts + * and in RFC 2246): */ + ((s->s3->tmp.new_cipher->algorithms & SSL_aNULL) && + /* ... except when the application insists on verification + * (against the specs, but s3_clnt.c accepts this for SSL 3) */ + !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) || + /* never request cert in Kerberos ciphersuites */ + (s->s3->tmp.new_cipher->algorithms & SSL_aKRB5)) + { + /* no cert request */ + skip=1; + s->s3->tmp.cert_request=0; + s->state=SSL3_ST_SW_SRVR_DONE_A; + } + else + { + s->s3->tmp.cert_request=1; + ret=dtls1_send_certificate_request(s); + if (ret <= 0) goto end; +#ifndef NETSCAPE_HANG_BUG + s->state=SSL3_ST_SW_SRVR_DONE_A; +#else + s->state=SSL3_ST_SW_FLUSH; + s->s3->tmp.next_state=SSL3_ST_SR_CERT_A; +#endif + s->init_num=0; + } + break; + + case SSL3_ST_SW_SRVR_DONE_A: + case SSL3_ST_SW_SRVR_DONE_B: + ret=dtls1_send_server_done(s); + if (ret <= 0) goto end; + s->s3->tmp.next_state=SSL3_ST_SR_CERT_A; + s->state=SSL3_ST_SW_FLUSH; + s->init_num=0; + break; + + case SSL3_ST_SW_FLUSH: + /* number of bytes to be flushed */ + num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL); + if (num1 > 0) + { + s->rwstate=SSL_WRITING; + num1=BIO_flush(s->wbio); + if (num1 <= 0) { ret= -1; goto end; } + s->rwstate=SSL_NOTHING; + } + + s->state=s->s3->tmp.next_state; + break; + + case SSL3_ST_SR_CERT_A: + case SSL3_ST_SR_CERT_B: + /* Check for second client hello (MS SGC) */ + ret = ssl3_check_client_hello(s); + if (ret <= 0) + goto end; + if (ret == 2) + s->state = SSL3_ST_SR_CLNT_HELLO_C; + else { + /* could be sent for a DH cert, even if we + * have not asked for it :-) */ + ret=ssl3_get_client_certificate(s); + if (ret <= 0) goto end; + s->init_num=0; + s->state=SSL3_ST_SR_KEY_EXCH_A; + } + break; + + case SSL3_ST_SR_KEY_EXCH_A: + case SSL3_ST_SR_KEY_EXCH_B: + ret=ssl3_get_client_key_exchange(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_SR_CERT_VRFY_A; + s->init_num=0; + + /* We need to get hashes here so if there is + * a client cert, it can be verified */ + s->method->ssl3_enc->cert_verify_mac(s, + &(s->s3->finish_dgst1), + &(s->s3->tmp.cert_verify_md[0])); + s->method->ssl3_enc->cert_verify_mac(s, + &(s->s3->finish_dgst2), + &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH])); + + break; + + case SSL3_ST_SR_CERT_VRFY_A: + case SSL3_ST_SR_CERT_VRFY_B: + + /* we should decide if we expected this one */ + ret=ssl3_get_cert_verify(s); + if (ret <= 0) goto end; + + s->state=SSL3_ST_SR_FINISHED_A; + s->init_num=0; + break; + + case SSL3_ST_SR_FINISHED_A: + case SSL3_ST_SR_FINISHED_B: + ret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A, + SSL3_ST_SR_FINISHED_B); + if (ret <= 0) goto end; + if (s->hit) + s->state=SSL_ST_OK; + else + s->state=SSL3_ST_SW_CHANGE_A; + s->init_num=0; + break; + + case SSL3_ST_SW_CHANGE_A: + case SSL3_ST_SW_CHANGE_B: + + s->session->cipher=s->s3->tmp.new_cipher; + if (!s->method->ssl3_enc->setup_key_block(s)) + { ret= -1; goto end; } + + ret=dtls1_send_change_cipher_spec(s, + SSL3_ST_SW_CHANGE_A,SSL3_ST_SW_CHANGE_B); + + if (ret <= 0) goto end; + s->state=SSL3_ST_SW_FINISHED_A; + s->init_num=0; + + if (!s->method->ssl3_enc->change_cipher_state(s, + SSL3_CHANGE_CIPHER_SERVER_WRITE)) + { + ret= -1; + goto end; + } + + dtls1_reset_seq_numbers(s, SSL3_CC_WRITE); + break; + + case SSL3_ST_SW_FINISHED_A: + case SSL3_ST_SW_FINISHED_B: + ret=dtls1_send_finished(s, + SSL3_ST_SW_FINISHED_A,SSL3_ST_SW_FINISHED_B, + s->method->ssl3_enc->server_finished_label, + s->method->ssl3_enc->server_finished_label_len); + if (ret <= 0) goto end; + s->state=SSL3_ST_SW_FLUSH; + if (s->hit) + s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A; + else + s->s3->tmp.next_state=SSL_ST_OK; + s->init_num=0; + break; + + case SSL_ST_OK: + /* clean a few things up */ + ssl3_cleanup_key_block(s); + +#if 0 + BUF_MEM_free(s->init_buf); + s->init_buf=NULL; +#endif + + /* remove buffering on output */ + ssl_free_wbio_buffer(s); + + s->init_num=0; + + if (s->new_session == 2) /* skipped if we just sent a HelloRequest */ + { + /* actually not necessarily a 'new' session unless + * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set */ + + s->new_session=0; + + ssl_update_cache(s,SSL_SESS_CACHE_SERVER); + + s->ctx->stats.sess_accept_good++; + /* s->server=1; */ + s->handshake_func=dtls1_accept; + + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1); + } + + ret = 1; + + /* done handshaking, next message is client hello */ + s->d1->handshake_read_seq = 0; + /* next message is server hello */ + s->d1->handshake_write_seq = 0; + goto end; + /* break; */ + + default: + SSLerr(SSL_F_DTLS1_ACCEPT,SSL_R_UNKNOWN_STATE); + ret= -1; + goto end; + /* break; */ + } + + if (!s->s3->tmp.reuse_message && !skip) + { + if (s->debug) + { + if ((ret=BIO_flush(s->wbio)) <= 0) + goto end; + } + + + if ((cb != NULL) && (s->state != state)) + { + new_state=s->state; + s->state=state; + cb(s,SSL_CB_ACCEPT_LOOP,1); + s->state=new_state; + } + } + skip=0; + } +end: + /* BIO_flush(s->wbio); */ + + s->in_handshake--; + if (cb != NULL) + cb(s,SSL_CB_ACCEPT_EXIT,ret); + return(ret); + } + +int dtls1_send_hello_request(SSL *s) + { + unsigned char *p; + + if (s->state == SSL3_ST_SW_HELLO_REQ_A) + { + p=(unsigned char *)s->init_buf->data; + p = dtls1_set_message_header(s, p, SSL3_MT_HELLO_REQUEST, 0, 0, 0); + + s->state=SSL3_ST_SW_HELLO_REQ_B; + /* number of bytes to write */ + s->init_num=DTLS1_HM_HEADER_LENGTH; + s->init_off=0; + + /* no need to buffer this message, since there are no retransmit + * requests for it */ + } + + /* SSL3_ST_SW_HELLO_REQ_B */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); + } + +int dtls1_send_hello_verify_request(SSL *s) + { + unsigned int msg_len; + unsigned char *msg, *buf, *p; + + if (s->state == DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A) + { + buf = (unsigned char *)s->init_buf->data; + + msg = p = &(buf[DTLS1_HM_HEADER_LENGTH]); + *(p++) = s->version >> 8; + *(p++) = s->version & 0xFF; + + *(p++) = (unsigned char) s->d1->cookie_len; + if ( s->ctx->app_gen_cookie_cb != NULL && + s->ctx->app_gen_cookie_cb(s, s->d1->cookie, + &(s->d1->cookie_len)) == 0) + { + SSLerr(SSL_F_DTLS1_SEND_HELLO_VERIFY_REQUEST,ERR_R_INTERNAL_ERROR); + return 0; + } + /* else the cookie is assumed to have + * been initialized by the application */ + + memcpy(p, s->d1->cookie, s->d1->cookie_len); + p += s->d1->cookie_len; + msg_len = p - msg; + + dtls1_set_message_header(s, buf, + DTLS1_MT_HELLO_VERIFY_REQUEST, msg_len, 0, msg_len); + + s->state=DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B; + /* number of bytes to write */ + s->init_num=p-buf; + s->init_off=0; + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + } + + /* s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); + } + +int dtls1_send_server_hello(SSL *s) + { + unsigned char *buf; + unsigned char *p,*d; + int i; + unsigned int sl; + unsigned long l,Time; + + if (s->state == SSL3_ST_SW_SRVR_HELLO_A) + { + buf=(unsigned char *)s->init_buf->data; + p=s->s3->server_random; + Time=(unsigned long)time(NULL); /* Time */ + l2n(Time,p); + RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time)); + /* Do the message type and length last */ + d=p= &(buf[DTLS1_HM_HEADER_LENGTH]); + + *(p++)=s->version>>8; + *(p++)=s->version&0xff; + + /* Random stuff */ + memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE); + p+=SSL3_RANDOM_SIZE; + + /* now in theory we have 3 options to sending back the + * session id. If it is a re-use, we send back the + * old session-id, if it is a new session, we send + * back the new session-id or we send back a 0 length + * session-id if we want it to be single use. + * Currently I will not implement the '0' length session-id + * 12-Jan-98 - I'll now support the '0' length stuff. + */ + if (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER)) + s->session->session_id_length=0; + + sl=s->session->session_id_length; + if (sl > sizeof s->session->session_id) + { + SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO, ERR_R_INTERNAL_ERROR); + return -1; + } + *(p++)=sl; + memcpy(p,s->session->session_id,sl); + p+=sl; + + /* put the cipher */ + i=ssl3_put_cipher_by_char(s->s3->tmp.new_cipher,p); + p+=i; + + /* put the compression method */ +#ifdef OPENSSL_NO_COMP + *(p++)=0; +#else + if (s->s3->tmp.new_compression == NULL) + *(p++)=0; + else + *(p++)=s->s3->tmp.new_compression->id; +#endif + + /* do the header */ + l=(p-d); + d=buf; + + d = dtls1_set_message_header(s, d, SSL3_MT_SERVER_HELLO, l, 0, l); + + s->state=SSL3_ST_CW_CLNT_HELLO_B; + /* number of bytes to write */ + s->init_num=p-buf; + s->init_off=0; + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + } + + /* SSL3_ST_CW_CLNT_HELLO_B */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); + } + +int dtls1_send_server_done(SSL *s) + { + unsigned char *p; + + if (s->state == SSL3_ST_SW_SRVR_DONE_A) + { + p=(unsigned char *)s->init_buf->data; + + /* do the header */ + p = dtls1_set_message_header(s, p, SSL3_MT_SERVER_DONE, 0, 0, 0); + + s->state=SSL3_ST_SW_SRVR_DONE_B; + /* number of bytes to write */ + s->init_num=DTLS1_HM_HEADER_LENGTH; + s->init_off=0; + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + } + + /* SSL3_ST_CW_CLNT_HELLO_B */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); + } + +int dtls1_send_server_key_exchange(SSL *s) + { +#ifndef OPENSSL_NO_RSA + unsigned char *q; + int j,num; + RSA *rsa; + unsigned char md_buf[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH]; + unsigned int u; +#endif +#ifndef OPENSSL_NO_DH + DH *dh=NULL,*dhp; +#endif + EVP_PKEY *pkey; + unsigned char *p,*d; + int al,i; + unsigned long type; + int n; + CERT *cert; + BIGNUM *r[4]; + int nr[4],kn; + BUF_MEM *buf; + EVP_MD_CTX md_ctx; + + EVP_MD_CTX_init(&md_ctx); + if (s->state == SSL3_ST_SW_KEY_EXCH_A) + { + type=s->s3->tmp.new_cipher->algorithms & SSL_MKEY_MASK; + cert=s->cert; + + buf=s->init_buf; + + r[0]=r[1]=r[2]=r[3]=NULL; + n=0; +#ifndef OPENSSL_NO_RSA + if (type & SSL_kRSA) + { + rsa=cert->rsa_tmp; + if ((rsa == NULL) && (s->cert->rsa_tmp_cb != NULL)) + { + rsa=s->cert->rsa_tmp_cb(s, + SSL_C_IS_EXPORT(s->s3->tmp.new_cipher), + SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)); + if(rsa == NULL) + { + al=SSL_AD_HANDSHAKE_FAILURE; + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_ERROR_GENERATING_TMP_RSA_KEY); + goto f_err; + } + RSA_up_ref(rsa); + cert->rsa_tmp=rsa; + } + if (rsa == NULL) + { + al=SSL_AD_HANDSHAKE_FAILURE; + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_KEY); + goto f_err; + } + r[0]=rsa->n; + r[1]=rsa->e; + s->s3->tmp.use_rsa_tmp=1; + } + else +#endif +#ifndef OPENSSL_NO_DH + if (type & SSL_kEDH) + { + dhp=cert->dh_tmp; + if ((dhp == NULL) && (s->cert->dh_tmp_cb != NULL)) + dhp=s->cert->dh_tmp_cb(s, + SSL_C_IS_EXPORT(s->s3->tmp.new_cipher), + SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)); + if (dhp == NULL) + { + al=SSL_AD_HANDSHAKE_FAILURE; + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY); + goto f_err; + } + + if (s->s3->tmp.dh != NULL) + { + DH_free(dh); + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); + goto err; + } + + if ((dh=DHparams_dup(dhp)) == NULL) + { + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB); + goto err; + } + + s->s3->tmp.dh=dh; + if ((dhp->pub_key == NULL || + dhp->priv_key == NULL || + (s->options & SSL_OP_SINGLE_DH_USE))) + { + if(!DH_generate_key(dh)) + { + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, + ERR_R_DH_LIB); + goto err; + } + } + else + { + dh->pub_key=BN_dup(dhp->pub_key); + dh->priv_key=BN_dup(dhp->priv_key); + if ((dh->pub_key == NULL) || + (dh->priv_key == NULL)) + { + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB); + goto err; + } + } + r[0]=dh->p; + r[1]=dh->g; + r[2]=dh->pub_key; + } + else +#endif + { + al=SSL_AD_HANDSHAKE_FAILURE; + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE); + goto f_err; + } + for (i=0; r[i] != NULL; i++) + { + nr[i]=BN_num_bytes(r[i]); + n+=2+nr[i]; + } + + if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) + { + if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher)) + == NULL) + { + al=SSL_AD_DECODE_ERROR; + goto f_err; + } + kn=EVP_PKEY_size(pkey); + } + else + { + pkey=NULL; + kn=0; + } + + if (!BUF_MEM_grow_clean(buf,n+DTLS1_HM_HEADER_LENGTH+kn)) + { + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_BUF); + goto err; + } + d=(unsigned char *)s->init_buf->data; + p= &(d[DTLS1_HM_HEADER_LENGTH]); + + for (i=0; r[i] != NULL; i++) + { + s2n(nr[i],p); + BN_bn2bin(r[i],p); + p+=nr[i]; + } + + /* not anonymous */ + if (pkey != NULL) + { + /* n is the length of the params, they start at + * &(d[DTLS1_HM_HEADER_LENGTH]) and p points to the space + * at the end. */ +#ifndef OPENSSL_NO_RSA + if (pkey->type == EVP_PKEY_RSA) + { + q=md_buf; + j=0; + for (num=2; num > 0; num--) + { + EVP_DigestInit_ex(&md_ctx,(num == 2) + ?s->ctx->md5:s->ctx->sha1, NULL); + EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); + EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); + EVP_DigestUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n); + EVP_DigestFinal_ex(&md_ctx,q, + (unsigned int *)&i); + q+=i; + j+=i; + } + if (RSA_sign(NID_md5_sha1, md_buf, j, + &(p[2]), &u, pkey->pkey.rsa) <= 0) + { + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_RSA); + goto err; + } + s2n(u,p); + n+=u+2; + } + else +#endif +#if !defined(OPENSSL_NO_DSA) + if (pkey->type == EVP_PKEY_DSA) + { + /* lets do DSS */ + EVP_SignInit_ex(&md_ctx,EVP_dss1(), NULL); + EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); + EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); + EVP_SignUpdate(&md_ctx,&(d[DTLS1_HM_HEADER_LENGTH]),n); + if (!EVP_SignFinal(&md_ctx,&(p[2]), + (unsigned int *)&i,pkey)) + { + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_DSA); + goto err; + } + s2n(i,p); + n+=i+2; + } + else +#endif + { + /* Is this error check actually needed? */ + al=SSL_AD_HANDSHAKE_FAILURE; + SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_PKEY_TYPE); + goto f_err; + } + } + + d = dtls1_set_message_header(s, d, + SSL3_MT_SERVER_KEY_EXCHANGE, n, 0, n); + + /* we should now have things packed up, so lets send + * it off */ + s->init_num=n+DTLS1_HM_HEADER_LENGTH; + s->init_off=0; + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + } + + s->state = SSL3_ST_SW_KEY_EXCH_B; + EVP_MD_CTX_cleanup(&md_ctx); + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); +err: + EVP_MD_CTX_cleanup(&md_ctx); + return(-1); + } + +int dtls1_send_certificate_request(SSL *s) + { + unsigned char *p,*d; + int i,j,nl,off,n; + STACK_OF(X509_NAME) *sk=NULL; + X509_NAME *name; + BUF_MEM *buf; + + if (s->state == SSL3_ST_SW_CERT_REQ_A) + { + buf=s->init_buf; + + d=p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH]); + + /* get the list of acceptable cert types */ + p++; + n=ssl3_get_req_cert_type(s,p); + d[0]=n; + p+=n; + n++; + + off=n; + p+=2; + n+=2; + + sk=SSL_get_client_CA_list(s); + nl=0; + if (sk != NULL) + { + for (i=0; i<sk_X509_NAME_num(sk); i++) + { + name=sk_X509_NAME_value(sk,i); + j=i2d_X509_NAME(name,NULL); + if (!BUF_MEM_grow_clean(buf,DTLS1_HM_HEADER_LENGTH+n+j+2)) + { + SSLerr(SSL_F_DTLS1_SEND_CERTIFICATE_REQUEST,ERR_R_BUF_LIB); + goto err; + } + p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH+n]); + if (!(s->options & SSL_OP_NETSCAPE_CA_DN_BUG)) + { + s2n(j,p); + i2d_X509_NAME(name,&p); + n+=2+j; + nl+=2+j; + } + else + { + d=p; + i2d_X509_NAME(name,&p); + j-=2; s2n(j,d); j+=2; + n+=j; + nl+=j; + } + } + } + /* else no CA names */ + p=(unsigned char *)&(buf->data[DTLS1_HM_HEADER_LENGTH+off]); + s2n(nl,p); + + d=(unsigned char *)buf->data; + *(d++)=SSL3_MT_CERTIFICATE_REQUEST; + l2n3(n,d); + s2n(s->d1->handshake_write_seq,d); + s->d1->handshake_write_seq++; + + /* we should now have things packed up, so lets send + * it off */ + + s->init_num=n+DTLS1_HM_HEADER_LENGTH; + s->init_off=0; +#ifdef NETSCAPE_HANG_BUG +/* XXX: what to do about this? */ + p=(unsigned char *)s->init_buf->data + s->init_num; + + /* do the header */ + *(p++)=SSL3_MT_SERVER_DONE; + *(p++)=0; + *(p++)=0; + *(p++)=0; + s->init_num += 4; +#endif + + /* XDTLS: set message header ? */ + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + + s->state = SSL3_ST_SW_CERT_REQ_B; + } + + /* SSL3_ST_SW_CERT_REQ_B */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); +err: + return(-1); + } + +int dtls1_send_server_certificate(SSL *s) + { + unsigned long l; + X509 *x; + + if (s->state == SSL3_ST_SW_CERT_A) + { + x=ssl_get_server_send_cert(s); + if (x == NULL && + /* VRS: allow null cert if auth == KRB5 */ + (s->s3->tmp.new_cipher->algorithms + & (SSL_MKEY_MASK|SSL_AUTH_MASK)) + != (SSL_aKRB5|SSL_kKRB5)) + { + SSLerr(SSL_F_DTLS1_SEND_SERVER_CERTIFICATE,ERR_R_INTERNAL_ERROR); + return(0); + } + + l=dtls1_output_cert_chain(s,x); + s->state=SSL3_ST_SW_CERT_B; + s->init_num=(int)l; + s->init_off=0; + + /* buffer the message to handle re-xmits */ + dtls1_buffer_message(s, 0); + } + + /* SSL3_ST_SW_CERT_B */ + return(dtls1_do_write(s,SSL3_RT_HANDSHAKE)); + } diff --git a/ssl/dtls1.h b/ssl/dtls1.h new file mode 100644 index 000000000000..a663cf85f282 --- /dev/null +++ b/ssl/dtls1.h @@ -0,0 +1,211 @@ +/* ssl/dtls1.h */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#ifndef HEADER_DTLS1_H +#define HEADER_DTLS1_H + +#include <openssl/buffer.h> +#include <openssl/pqueue.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define DTLS1_VERSION 0xFEFF +#define DTLS1_BAD_VER 0x0100 + +#define DTLS1_AD_MISSING_HANDSHAKE_MESSAGE 110 + +/* lengths of messages */ +#define DTLS1_COOKIE_LENGTH 32 + +#define DTLS1_RT_HEADER_LENGTH 13 + +#define DTLS1_HM_HEADER_LENGTH 12 + +#define DTLS1_HM_BAD_FRAGMENT -2 +#define DTLS1_HM_FRAGMENT_RETRY -3 + +#define DTLS1_CCS_HEADER_LENGTH 1 + +#define DTLS1_AL_HEADER_LENGTH 7 + + +typedef struct dtls1_bitmap_st + { + PQ_64BIT map; + unsigned long length; /* sizeof the bitmap in bits */ + PQ_64BIT max_seq_num; /* max record number seen so far */ + } DTLS1_BITMAP; + +struct hm_header_st + { + unsigned char type; + unsigned long msg_len; + unsigned short seq; + unsigned long frag_off; + unsigned long frag_len; + unsigned int is_ccs; + }; + +struct ccs_header_st + { + unsigned char type; + unsigned short seq; + }; + +struct dtls1_timeout_st + { + /* Number of read timeouts so far */ + unsigned int read_timeouts; + + /* Number of write timeouts so far */ + unsigned int write_timeouts; + + /* Number of alerts received so far */ + unsigned int num_alerts; + }; + +typedef struct record_pqueue_st + { + unsigned short epoch; + pqueue q; + } record_pqueue; + +typedef struct hm_fragment_st + { + struct hm_header_st msg_header; + unsigned char *fragment; + } hm_fragment; + +typedef struct dtls1_state_st + { + unsigned int send_cookie; + unsigned char cookie[DTLS1_COOKIE_LENGTH]; + unsigned char rcvd_cookie[DTLS1_COOKIE_LENGTH]; + unsigned int cookie_len; + + /* + * The current data and handshake epoch. This is initially + * undefined, and starts at zero once the initial handshake is + * completed + */ + unsigned short r_epoch; + unsigned short w_epoch; + + /* records being received in the current epoch */ + DTLS1_BITMAP bitmap; + + /* renegotiation starts a new set of sequence numbers */ + DTLS1_BITMAP next_bitmap; + + /* handshake message numbers */ + unsigned short handshake_write_seq; + unsigned short next_handshake_write_seq; + + unsigned short handshake_read_seq; + + /* Received handshake records (processed and unprocessed) */ + record_pqueue unprocessed_rcds; + record_pqueue processed_rcds; + + /* Buffered handshake messages */ + pqueue buffered_messages; + + /* Buffered (sent) handshake records */ + pqueue sent_messages; + + unsigned int mtu; /* max wire packet size */ + + struct hm_header_st w_msg_hdr; + struct hm_header_st r_msg_hdr; + + struct dtls1_timeout_st timeout; + + /* storage for Alert/Handshake protocol data received but not + * yet processed by ssl3_read_bytes: */ + unsigned char alert_fragment[DTLS1_AL_HEADER_LENGTH]; + unsigned int alert_fragment_len; + unsigned char handshake_fragment[DTLS1_HM_HEADER_LENGTH]; + unsigned int handshake_fragment_len; + + unsigned int retransmitting; + + } DTLS1_STATE; + +typedef struct dtls1_record_data_st + { + unsigned char *packet; + unsigned int packet_length; + SSL3_BUFFER rbuf; + SSL3_RECORD rrec; + } DTLS1_RECORD_DATA; + + +/* Timeout multipliers (timeout slice is defined in apps/timeouts.h */ +#define DTLS1_TMO_READ_COUNT 2 +#define DTLS1_TMO_WRITE_COUNT 2 + +#define DTLS1_TMO_ALERT_COUNT 12 + +#ifdef __cplusplus +} +#endif +#endif + diff --git a/ssl/kssl.c b/ssl/kssl.c new file mode 100644 index 000000000000..106428273078 --- /dev/null +++ b/ssl/kssl.c @@ -0,0 +1,2203 @@ +/* ssl/kssl.c -*- mode: C; c-file-style: "eay" -*- */ +/* Written by Vern Staats <staatsvr@asc.hpc.mil> for the OpenSSL project 2000. + */ +/* ==================================================================== + * Copyright (c) 2000 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + + +/* ssl/kssl.c -- Routines to support (& debug) Kerberos5 auth for openssl +** +** 19990701 VRS Started. +** 200011?? Jeffrey Altman, Richard Levitte +** Generalized for Heimdal, Newer MIT, & Win32. +** Integrated into main OpenSSL 0.9.7 snapshots. +** 20010413 Simon Wilkinson, VRS +** Real RFC2712 KerberosWrapper replaces AP_REQ. +*/ + +#include <openssl/opensslconf.h> + +#define _XOPEN_SOURCE 500 /* glibc2 needs this to declare strptime() */ +#include <time.h> +#if 0 /* experimental */ +#undef _XOPEN_SOURCE /* To avoid clashes with anything else... */ +#endif +#include <string.h> + +#define KRB5_PRIVATE 1 + +#include <openssl/ssl.h> +#include <openssl/evp.h> +#include <openssl/objects.h> +#include <openssl/krb5_asn.h> + +#ifndef OPENSSL_NO_KRB5 + +#ifndef ENOMEM +#define ENOMEM KRB5KRB_ERR_GENERIC +#endif + +/* + * When OpenSSL is built on Windows, we do not want to require that + * the Kerberos DLLs be available in order for the OpenSSL DLLs to + * work. Therefore, all Kerberos routines are loaded at run time + * and we do not link to a .LIB file. + */ + +#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32) +/* + * The purpose of the following pre-processor statements is to provide + * compatibility with different releases of MIT Kerberos for Windows. + * All versions up to 1.2 used macros. But macros do not allow for + * a binary compatible interface for DLLs. Therefore, all macros are + * being replaced by function calls. The following code will allow + * an OpenSSL DLL built on Windows to work whether or not the macro + * or function form of the routines are utilized. + */ +#ifdef krb5_cc_get_principal +#define NO_DEF_KRB5_CCACHE +#undef krb5_cc_get_principal +#endif +#define krb5_cc_get_principal kssl_krb5_cc_get_principal + +#define krb5_free_data_contents kssl_krb5_free_data_contents +#define krb5_free_context kssl_krb5_free_context +#define krb5_auth_con_free kssl_krb5_auth_con_free +#define krb5_free_principal kssl_krb5_free_principal +#define krb5_mk_req_extended kssl_krb5_mk_req_extended +#define krb5_get_credentials kssl_krb5_get_credentials +#define krb5_cc_default kssl_krb5_cc_default +#define krb5_sname_to_principal kssl_krb5_sname_to_principal +#define krb5_init_context kssl_krb5_init_context +#define krb5_free_ticket kssl_krb5_free_ticket +#define krb5_rd_req kssl_krb5_rd_req +#define krb5_kt_default kssl_krb5_kt_default +#define krb5_kt_resolve kssl_krb5_kt_resolve +/* macros in mit 1.2.2 and earlier; functions in mit 1.2.3 and greater */ +#ifndef krb5_kt_close +#define krb5_kt_close kssl_krb5_kt_close +#endif /* krb5_kt_close */ +#ifndef krb5_kt_get_entry +#define krb5_kt_get_entry kssl_krb5_kt_get_entry +#endif /* krb5_kt_get_entry */ +#define krb5_auth_con_init kssl_krb5_auth_con_init + +#define krb5_principal_compare kssl_krb5_principal_compare +#define krb5_decrypt_tkt_part kssl_krb5_decrypt_tkt_part +#define krb5_timeofday kssl_krb5_timeofday +#define krb5_rc_default kssl_krb5_rc_default + +#ifdef krb5_rc_initialize +#undef krb5_rc_initialize +#endif +#define krb5_rc_initialize kssl_krb5_rc_initialize + +#ifdef krb5_rc_get_lifespan +#undef krb5_rc_get_lifespan +#endif +#define krb5_rc_get_lifespan kssl_krb5_rc_get_lifespan + +#ifdef krb5_rc_destroy +#undef krb5_rc_destroy +#endif +#define krb5_rc_destroy kssl_krb5_rc_destroy + +#define valid_cksumtype kssl_valid_cksumtype +#define krb5_checksum_size kssl_krb5_checksum_size +#define krb5_kt_free_entry kssl_krb5_kt_free_entry +#define krb5_auth_con_setrcache kssl_krb5_auth_con_setrcache +#define krb5_auth_con_getrcache kssl_krb5_auth_con_getrcache +#define krb5_get_server_rcache kssl_krb5_get_server_rcache + +/* Prototypes for built in stubs */ +void kssl_krb5_free_data_contents(krb5_context, krb5_data *); +void kssl_krb5_free_principal(krb5_context, krb5_principal ); +krb5_error_code kssl_krb5_kt_resolve(krb5_context, + krb5_const char *, + krb5_keytab *); +krb5_error_code kssl_krb5_kt_default(krb5_context, + krb5_keytab *); +krb5_error_code kssl_krb5_free_ticket(krb5_context, krb5_ticket *); +krb5_error_code kssl_krb5_rd_req(krb5_context, krb5_auth_context *, + krb5_const krb5_data *, + krb5_const_principal, krb5_keytab, + krb5_flags *,krb5_ticket **); + +krb5_boolean kssl_krb5_principal_compare(krb5_context, krb5_const_principal, + krb5_const_principal); +krb5_error_code kssl_krb5_mk_req_extended(krb5_context, + krb5_auth_context *, + krb5_const krb5_flags, + krb5_data *, + krb5_creds *, + krb5_data * ); +krb5_error_code kssl_krb5_init_context(krb5_context *); +void kssl_krb5_free_context(krb5_context); +krb5_error_code kssl_krb5_cc_default(krb5_context,krb5_ccache *); +krb5_error_code kssl_krb5_sname_to_principal(krb5_context, + krb5_const char *, + krb5_const char *, + krb5_int32, + krb5_principal *); +krb5_error_code kssl_krb5_get_credentials(krb5_context, + krb5_const krb5_flags, + krb5_ccache, + krb5_creds *, + krb5_creds * *); +krb5_error_code kssl_krb5_auth_con_init(krb5_context, + krb5_auth_context *); +krb5_error_code kssl_krb5_cc_get_principal(krb5_context context, + krb5_ccache cache, + krb5_principal *principal); +krb5_error_code kssl_krb5_auth_con_free(krb5_context,krb5_auth_context); +size_t kssl_krb5_checksum_size(krb5_context context,krb5_cksumtype ctype); +krb5_boolean kssl_valid_cksumtype(krb5_cksumtype ctype); +krb5_error_code krb5_kt_free_entry(krb5_context,krb5_keytab_entry FAR * ); +krb5_error_code kssl_krb5_auth_con_setrcache(krb5_context, + krb5_auth_context, + krb5_rcache); +krb5_error_code kssl_krb5_get_server_rcache(krb5_context, + krb5_const krb5_data *, + krb5_rcache *); +krb5_error_code kssl_krb5_auth_con_getrcache(krb5_context, + krb5_auth_context, + krb5_rcache *); + +/* Function pointers (almost all Kerberos functions are _stdcall) */ +static void (_stdcall *p_krb5_free_data_contents)(krb5_context, krb5_data *) + =NULL; +static void (_stdcall *p_krb5_free_principal)(krb5_context, krb5_principal ) + =NULL; +static krb5_error_code(_stdcall *p_krb5_kt_resolve) + (krb5_context, krb5_const char *, krb5_keytab *)=NULL; +static krb5_error_code (_stdcall *p_krb5_kt_default)(krb5_context, + krb5_keytab *)=NULL; +static krb5_error_code (_stdcall *p_krb5_free_ticket)(krb5_context, + krb5_ticket *)=NULL; +static krb5_error_code (_stdcall *p_krb5_rd_req)(krb5_context, + krb5_auth_context *, + krb5_const krb5_data *, + krb5_const_principal, + krb5_keytab, krb5_flags *, + krb5_ticket **)=NULL; +static krb5_error_code (_stdcall *p_krb5_mk_req_extended) + (krb5_context, krb5_auth_context *, + krb5_const krb5_flags, krb5_data *, krb5_creds *, + krb5_data * )=NULL; +static krb5_error_code (_stdcall *p_krb5_init_context)(krb5_context *)=NULL; +static void (_stdcall *p_krb5_free_context)(krb5_context)=NULL; +static krb5_error_code (_stdcall *p_krb5_cc_default)(krb5_context, + krb5_ccache *)=NULL; +static krb5_error_code (_stdcall *p_krb5_sname_to_principal) + (krb5_context, krb5_const char *, krb5_const char *, + krb5_int32, krb5_principal *)=NULL; +static krb5_error_code (_stdcall *p_krb5_get_credentials) + (krb5_context, krb5_const krb5_flags, krb5_ccache, + krb5_creds *, krb5_creds **)=NULL; +static krb5_error_code (_stdcall *p_krb5_auth_con_init) + (krb5_context, krb5_auth_context *)=NULL; +static krb5_error_code (_stdcall *p_krb5_cc_get_principal) + (krb5_context context, krb5_ccache cache, + krb5_principal *principal)=NULL; +static krb5_error_code (_stdcall *p_krb5_auth_con_free) + (krb5_context, krb5_auth_context)=NULL; +static krb5_error_code (_stdcall *p_krb5_decrypt_tkt_part) + (krb5_context, krb5_const krb5_keyblock *, + krb5_ticket *)=NULL; +static krb5_error_code (_stdcall *p_krb5_timeofday) + (krb5_context context, krb5_int32 *timeret)=NULL; +static krb5_error_code (_stdcall *p_krb5_rc_default) + (krb5_context context, krb5_rcache *rc)=NULL; +static krb5_error_code (_stdcall *p_krb5_rc_initialize) + (krb5_context context, krb5_rcache rc, + krb5_deltat lifespan)=NULL; +static krb5_error_code (_stdcall *p_krb5_rc_get_lifespan) + (krb5_context context, krb5_rcache rc, + krb5_deltat *lifespan)=NULL; +static krb5_error_code (_stdcall *p_krb5_rc_destroy) + (krb5_context context, krb5_rcache rc)=NULL; +static krb5_boolean (_stdcall *p_krb5_principal_compare) + (krb5_context, krb5_const_principal, krb5_const_principal)=NULL; +static size_t (_stdcall *p_krb5_checksum_size)(krb5_context context,krb5_cksumtype ctype)=NULL; +static krb5_boolean (_stdcall *p_valid_cksumtype)(krb5_cksumtype ctype)=NULL; +static krb5_error_code (_stdcall *p_krb5_kt_free_entry) + (krb5_context,krb5_keytab_entry * )=NULL; +static krb5_error_code (_stdcall * p_krb5_auth_con_setrcache)(krb5_context, + krb5_auth_context, + krb5_rcache)=NULL; +static krb5_error_code (_stdcall * p_krb5_get_server_rcache)(krb5_context, + krb5_const krb5_data *, + krb5_rcache *)=NULL; +static krb5_error_code (* p_krb5_auth_con_getrcache)(krb5_context, + krb5_auth_context, + krb5_rcache *)=NULL; +static krb5_error_code (_stdcall * p_krb5_kt_close)(krb5_context context, + krb5_keytab keytab)=NULL; +static krb5_error_code (_stdcall * p_krb5_kt_get_entry)(krb5_context context, + krb5_keytab keytab, + krb5_const_principal principal, krb5_kvno vno, + krb5_enctype enctype, krb5_keytab_entry *entry)=NULL; +static int krb5_loaded = 0; /* only attempt to initialize func ptrs once */ + +/* Function to Load the Kerberos 5 DLL and initialize function pointers */ +void +load_krb5_dll(void) + { + HANDLE hKRB5_32; + + krb5_loaded++; + hKRB5_32 = LoadLibrary(TEXT("KRB5_32")); + if (!hKRB5_32) + return; + + (FARPROC) p_krb5_free_data_contents = + GetProcAddress( hKRB5_32, "krb5_free_data_contents" ); + (FARPROC) p_krb5_free_context = + GetProcAddress( hKRB5_32, "krb5_free_context" ); + (FARPROC) p_krb5_auth_con_free = + GetProcAddress( hKRB5_32, "krb5_auth_con_free" ); + (FARPROC) p_krb5_free_principal = + GetProcAddress( hKRB5_32, "krb5_free_principal" ); + (FARPROC) p_krb5_mk_req_extended = + GetProcAddress( hKRB5_32, "krb5_mk_req_extended" ); + (FARPROC) p_krb5_get_credentials = + GetProcAddress( hKRB5_32, "krb5_get_credentials" ); + (FARPROC) p_krb5_cc_get_principal = + GetProcAddress( hKRB5_32, "krb5_cc_get_principal" ); + (FARPROC) p_krb5_cc_default = + GetProcAddress( hKRB5_32, "krb5_cc_default" ); + (FARPROC) p_krb5_sname_to_principal = + GetProcAddress( hKRB5_32, "krb5_sname_to_principal" ); + (FARPROC) p_krb5_init_context = + GetProcAddress( hKRB5_32, "krb5_init_context" ); + (FARPROC) p_krb5_free_ticket = + GetProcAddress( hKRB5_32, "krb5_free_ticket" ); + (FARPROC) p_krb5_rd_req = + GetProcAddress( hKRB5_32, "krb5_rd_req" ); + (FARPROC) p_krb5_principal_compare = + GetProcAddress( hKRB5_32, "krb5_principal_compare" ); + (FARPROC) p_krb5_decrypt_tkt_part = + GetProcAddress( hKRB5_32, "krb5_decrypt_tkt_part" ); + (FARPROC) p_krb5_timeofday = + GetProcAddress( hKRB5_32, "krb5_timeofday" ); + (FARPROC) p_krb5_rc_default = + GetProcAddress( hKRB5_32, "krb5_rc_default" ); + (FARPROC) p_krb5_rc_initialize = + GetProcAddress( hKRB5_32, "krb5_rc_initialize" ); + (FARPROC) p_krb5_rc_get_lifespan = + GetProcAddress( hKRB5_32, "krb5_rc_get_lifespan" ); + (FARPROC) p_krb5_rc_destroy = + GetProcAddress( hKRB5_32, "krb5_rc_destroy" ); + (FARPROC) p_krb5_kt_default = + GetProcAddress( hKRB5_32, "krb5_kt_default" ); + (FARPROC) p_krb5_kt_resolve = + GetProcAddress( hKRB5_32, "krb5_kt_resolve" ); + (FARPROC) p_krb5_auth_con_init = + GetProcAddress( hKRB5_32, "krb5_auth_con_init" ); + (FARPROC) p_valid_cksumtype = + GetProcAddress( hKRB5_32, "valid_cksumtype" ); + (FARPROC) p_krb5_checksum_size = + GetProcAddress( hKRB5_32, "krb5_checksum_size" ); + (FARPROC) p_krb5_kt_free_entry = + GetProcAddress( hKRB5_32, "krb5_kt_free_entry" ); + (FARPROC) p_krb5_auth_con_setrcache = + GetProcAddress( hKRB5_32, "krb5_auth_con_setrcache" ); + (FARPROC) p_krb5_get_server_rcache = + GetProcAddress( hKRB5_32, "krb5_get_server_rcache" ); + (FARPROC) p_krb5_auth_con_getrcache = + GetProcAddress( hKRB5_32, "krb5_auth_con_getrcache" ); + (FARPROC) p_krb5_kt_close = + GetProcAddress( hKRB5_32, "krb5_kt_close" ); + (FARPROC) p_krb5_kt_get_entry = + GetProcAddress( hKRB5_32, "krb5_kt_get_entry" ); + } + +/* Stubs for each function to be dynamicly loaded */ +void +kssl_krb5_free_data_contents(krb5_context CO, krb5_data * data) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_free_data_contents ) + p_krb5_free_data_contents(CO,data); + } + +krb5_error_code +kssl_krb5_mk_req_extended (krb5_context CO, + krb5_auth_context * pACO, + krb5_const krb5_flags F, + krb5_data * pD1, + krb5_creds * pC, + krb5_data * pD2) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_mk_req_extended ) + return(p_krb5_mk_req_extended(CO,pACO,F,pD1,pC,pD2)); + else + return KRB5KRB_ERR_GENERIC; + } +krb5_error_code +kssl_krb5_auth_con_init(krb5_context CO, + krb5_auth_context * pACO) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_auth_con_init ) + return(p_krb5_auth_con_init(CO,pACO)); + else + return KRB5KRB_ERR_GENERIC; + } +krb5_error_code +kssl_krb5_auth_con_free (krb5_context CO, + krb5_auth_context ACO) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_auth_con_free ) + return(p_krb5_auth_con_free(CO,ACO)); + else + return KRB5KRB_ERR_GENERIC; + } +krb5_error_code +kssl_krb5_get_credentials(krb5_context CO, + krb5_const krb5_flags F, + krb5_ccache CC, + krb5_creds * pCR, + krb5_creds ** ppCR) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_get_credentials ) + return(p_krb5_get_credentials(CO,F,CC,pCR,ppCR)); + else + return KRB5KRB_ERR_GENERIC; + } +krb5_error_code +kssl_krb5_sname_to_principal(krb5_context CO, + krb5_const char * pC1, + krb5_const char * pC2, + krb5_int32 I, + krb5_principal * pPR) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_sname_to_principal ) + return(p_krb5_sname_to_principal(CO,pC1,pC2,I,pPR)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +kssl_krb5_cc_default(krb5_context CO, + krb5_ccache * pCC) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_cc_default ) + return(p_krb5_cc_default(CO,pCC)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +kssl_krb5_init_context(krb5_context * pCO) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_init_context ) + return(p_krb5_init_context(pCO)); + else + return KRB5KRB_ERR_GENERIC; + } + +void +kssl_krb5_free_context(krb5_context CO) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_free_context ) + p_krb5_free_context(CO); + } + +void +kssl_krb5_free_principal(krb5_context c, krb5_principal p) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_free_principal ) + p_krb5_free_principal(c,p); + } + +krb5_error_code +kssl_krb5_kt_resolve(krb5_context con, + krb5_const char * sz, + krb5_keytab * kt) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_kt_resolve ) + return(p_krb5_kt_resolve(con,sz,kt)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +kssl_krb5_kt_default(krb5_context con, + krb5_keytab * kt) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_kt_default ) + return(p_krb5_kt_default(con,kt)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +kssl_krb5_free_ticket(krb5_context con, + krb5_ticket * kt) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_free_ticket ) + return(p_krb5_free_ticket(con,kt)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +kssl_krb5_rd_req(krb5_context con, krb5_auth_context * pacon, + krb5_const krb5_data * data, + krb5_const_principal princ, krb5_keytab keytab, + krb5_flags * flags, krb5_ticket ** pptkt) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_rd_req ) + return(p_krb5_rd_req(con,pacon,data,princ,keytab,flags,pptkt)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_boolean +krb5_principal_compare(krb5_context con, krb5_const_principal princ1, + krb5_const_principal princ2) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_principal_compare ) + return(p_krb5_principal_compare(con,princ1,princ2)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +krb5_decrypt_tkt_part(krb5_context con, krb5_const krb5_keyblock *keys, + krb5_ticket *ticket) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_decrypt_tkt_part ) + return(p_krb5_decrypt_tkt_part(con,keys,ticket)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +krb5_timeofday(krb5_context con, krb5_int32 *timeret) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_timeofday ) + return(p_krb5_timeofday(con,timeret)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +krb5_rc_default(krb5_context con, krb5_rcache *rc) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_rc_default ) + return(p_krb5_rc_default(con,rc)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +krb5_rc_initialize(krb5_context con, krb5_rcache rc, krb5_deltat lifespan) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_rc_initialize ) + return(p_krb5_rc_initialize(con, rc, lifespan)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +krb5_rc_get_lifespan(krb5_context con, krb5_rcache rc, krb5_deltat *lifespanp) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_rc_get_lifespan ) + return(p_krb5_rc_get_lifespan(con, rc, lifespanp)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +krb5_rc_destroy(krb5_context con, krb5_rcache rc) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_rc_destroy ) + return(p_krb5_rc_destroy(con, rc)); + else + return KRB5KRB_ERR_GENERIC; + } + +size_t +krb5_checksum_size(krb5_context context,krb5_cksumtype ctype) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_checksum_size ) + return(p_krb5_checksum_size(context, ctype)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_boolean +valid_cksumtype(krb5_cksumtype ctype) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_valid_cksumtype ) + return(p_valid_cksumtype(ctype)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +krb5_kt_free_entry(krb5_context con,krb5_keytab_entry * entry) + { + if (!krb5_loaded) + load_krb5_dll(); + + if ( p_krb5_kt_free_entry ) + return(p_krb5_kt_free_entry(con,entry)); + else + return KRB5KRB_ERR_GENERIC; + } + +/* Structure definitions */ +#ifndef NO_DEF_KRB5_CCACHE +#ifndef krb5_x +#define krb5_x(ptr,args) ((ptr)?((*(ptr)) args):(abort(),1)) +#define krb5_xc(ptr,args) ((ptr)?((*(ptr)) args):(abort(),(char*)0)) +#endif + +typedef krb5_pointer krb5_cc_cursor; /* cursor for sequential lookup */ + +typedef struct _krb5_ccache + { + krb5_magic magic; + struct _krb5_cc_ops FAR *ops; + krb5_pointer data; + } *krb5_ccache; + +typedef struct _krb5_cc_ops + { + krb5_magic magic; + char *prefix; + char * (KRB5_CALLCONV *get_name) + (krb5_context, krb5_ccache); + krb5_error_code (KRB5_CALLCONV *resolve) + (krb5_context, krb5_ccache *, const char *); + krb5_error_code (KRB5_CALLCONV *gen_new) + (krb5_context, krb5_ccache *); + krb5_error_code (KRB5_CALLCONV *init) + (krb5_context, krb5_ccache, krb5_principal); + krb5_error_code (KRB5_CALLCONV *destroy) + (krb5_context, krb5_ccache); + krb5_error_code (KRB5_CALLCONV *close) + (krb5_context, krb5_ccache); + krb5_error_code (KRB5_CALLCONV *store) + (krb5_context, krb5_ccache, krb5_creds *); + krb5_error_code (KRB5_CALLCONV *retrieve) + (krb5_context, krb5_ccache, + krb5_flags, krb5_creds *, krb5_creds *); + krb5_error_code (KRB5_CALLCONV *get_princ) + (krb5_context, krb5_ccache, krb5_principal *); + krb5_error_code (KRB5_CALLCONV *get_first) + (krb5_context, krb5_ccache, krb5_cc_cursor *); + krb5_error_code (KRB5_CALLCONV *get_next) + (krb5_context, krb5_ccache, + krb5_cc_cursor *, krb5_creds *); + krb5_error_code (KRB5_CALLCONV *end_get) + (krb5_context, krb5_ccache, krb5_cc_cursor *); + krb5_error_code (KRB5_CALLCONV *remove_cred) + (krb5_context, krb5_ccache, + krb5_flags, krb5_creds *); + krb5_error_code (KRB5_CALLCONV *set_flags) + (krb5_context, krb5_ccache, krb5_flags); + } krb5_cc_ops; +#endif /* NO_DEF_KRB5_CCACHE */ + +krb5_error_code +kssl_krb5_cc_get_principal + (krb5_context context, krb5_ccache cache, + krb5_principal *principal) + { + if ( p_krb5_cc_get_principal ) + return(p_krb5_cc_get_principal(context,cache,principal)); + else + return(krb5_x + ((cache)->ops->get_princ,(context, cache, principal))); + } + +krb5_error_code +kssl_krb5_auth_con_setrcache(krb5_context con, krb5_auth_context acon, + krb5_rcache rcache) + { + if ( p_krb5_auth_con_setrcache ) + return(p_krb5_auth_con_setrcache(con,acon,rcache)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +kssl_krb5_get_server_rcache(krb5_context con, krb5_const krb5_data * data, + krb5_rcache * rcache) + { + if ( p_krb5_get_server_rcache ) + return(p_krb5_get_server_rcache(con,data,rcache)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +kssl_krb5_auth_con_getrcache(krb5_context con, krb5_auth_context acon, + krb5_rcache * prcache) + { + if ( p_krb5_auth_con_getrcache ) + return(p_krb5_auth_con_getrcache(con,acon, prcache)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +kssl_krb5_kt_close(krb5_context context, krb5_keytab keytab) + { + if ( p_krb5_kt_close ) + return(p_krb5_kt_close(context,keytab)); + else + return KRB5KRB_ERR_GENERIC; + } + +krb5_error_code +kssl_krb5_kt_get_entry(krb5_context context, krb5_keytab keytab, + krb5_const_principal principal, krb5_kvno vno, + krb5_enctype enctype, krb5_keytab_entry *entry) + { + if ( p_krb5_kt_get_entry ) + return(p_krb5_kt_get_entry(context,keytab,principal,vno,enctype,entry)); + else + return KRB5KRB_ERR_GENERIC; + } +#endif /* OPENSSL_SYS_WINDOWS || OPENSSL_SYS_WIN32 */ + + +/* memory allocation functions for non-temporary storage + * (e.g. stuff that gets saved into the kssl context) */ +static void* kssl_calloc(size_t nmemb, size_t size) +{ + void* p; + + p=OPENSSL_malloc(nmemb*size); + if (p){ + memset(p, 0, nmemb*size); + } + return p; +} + +#define kssl_malloc(size) OPENSSL_malloc((size)) +#define kssl_realloc(ptr, size) OPENSSL_realloc(ptr, size) +#define kssl_free(ptr) OPENSSL_free((ptr)) + + +char +*kstring(char *string) + { + static char *null = "[NULL]"; + + return ((string == NULL)? null: string); + } + +/* Given KRB5 enctype (basically DES or 3DES), +** return closest match openssl EVP_ encryption algorithm. +** Return NULL for unknown or problematic (krb5_dk_encrypt) enctypes. +** Assume ENCTYPE_*_RAW (krb5_raw_encrypt) are OK. +*/ +const EVP_CIPHER * +kssl_map_enc(krb5_enctype enctype) + { + switch (enctype) + { + case ENCTYPE_DES_HMAC_SHA1: /* EVP_des_cbc(); */ + case ENCTYPE_DES_CBC_CRC: + case ENCTYPE_DES_CBC_MD4: + case ENCTYPE_DES_CBC_MD5: + case ENCTYPE_DES_CBC_RAW: + return EVP_des_cbc(); + break; + case ENCTYPE_DES3_CBC_SHA1: /* EVP_des_ede3_cbc(); */ + case ENCTYPE_DES3_CBC_SHA: + case ENCTYPE_DES3_CBC_RAW: + return EVP_des_ede3_cbc(); + break; + default: return NULL; + break; + } + } + + +/* Return true:1 if p "looks like" the start of the real authenticator +** described in kssl_skip_confound() below. The ASN.1 pattern is +** "62 xx 30 yy" (APPLICATION-2, SEQUENCE), where xx-yy =~ 2, and +** xx and yy are possibly multi-byte length fields. +*/ +int kssl_test_confound(unsigned char *p) + { + int len = 2; + int xx = 0, yy = 0; + + if (*p++ != 0x62) return 0; + if (*p > 0x82) return 0; + switch(*p) { + case 0x82: p++; xx = (*p++ << 8); xx += *p++; break; + case 0x81: p++; xx = *p++; break; + case 0x80: return 0; + default: xx = *p++; break; + } + if (*p++ != 0x30) return 0; + if (*p > 0x82) return 0; + switch(*p) { + case 0x82: p++; len+=2; yy = (*p++ << 8); yy += *p++; break; + case 0x81: p++; len++; yy = *p++; break; + case 0x80: return 0; + default: yy = *p++; break; + } + + return (xx - len == yy)? 1: 0; + } + +/* Allocate, fill, and return cksumlens array of checksum lengths. +** This array holds just the unique elements from the krb5_cksumarray[]. +** array[n] == 0 signals end of data. +** +** The krb5_cksumarray[] was an internal variable that has since been +** replaced by a more general method for storing the data. It should +** not be used. Instead we use real API calls and make a guess for +** what the highest assigned CKSUMTYPE_ constant is. As of 1.2.2 +** it is 0x000c (CKSUMTYPE_HMAC_SHA1_DES3). So we will use 0x0010. +*/ +size_t *populate_cksumlens(void) + { + int i, j, n; + static size_t *cklens = NULL; + +#ifdef KRB5_MIT_OLD11 + n = krb5_max_cksum; +#else + n = 0x0010; +#endif /* KRB5_MIT_OLD11 */ + +#ifdef KRB5CHECKAUTH + if (!cklens && !(cklens = (size_t *) calloc(sizeof(int),n+1))) return NULL; + + for (i=0; i < n; i++) { + if (!valid_cksumtype(i)) continue; /* array has holes */ + for (j=0; j < n; j++) { + if (cklens[j] == 0) { + cklens[j] = krb5_checksum_size(NULL,i); + break; /* krb5 elem was new: add */ + } + if (cklens[j] == krb5_checksum_size(NULL,i)) { + break; /* ignore duplicate elements */ + } + } + } +#endif /* KRB5CHECKAUTH */ + + return cklens; + } + +/* Return pointer to start of real authenticator within authenticator, or +** return NULL on error. +** Decrypted authenticator looks like this: +** [0 or 8 byte confounder] [4-24 byte checksum] [real authent'r] +** This hackery wouldn't be necessary if MIT KRB5 1.0.6 had the +** krb5_auth_con_getcksumtype() function advertised in its krb5.h. +*/ +unsigned char *kssl_skip_confound(krb5_enctype etype, unsigned char *a) + { + int i, conlen; + size_t cklen; + static size_t *cksumlens = NULL; + unsigned char *test_auth; + + conlen = (etype)? 8: 0; + + if (!cksumlens && !(cksumlens = populate_cksumlens())) return NULL; + for (i=0; (cklen = cksumlens[i]) != 0; i++) + { + test_auth = a + conlen + cklen; + if (kssl_test_confound(test_auth)) return test_auth; + } + + return NULL; + } + + +/* Set kssl_err error info when reason text is a simple string +** kssl_err = struct { int reason; char text[KSSL_ERR_MAX+1]; } +*/ +void +kssl_err_set(KSSL_ERR *kssl_err, int reason, char *text) + { + if (kssl_err == NULL) return; + + kssl_err->reason = reason; + BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, text); + return; + } + + +/* Display contents of krb5_data struct, for debugging +*/ +void +print_krb5_data(char *label, krb5_data *kdata) + { + int i; + + printf("%s[%d] ", label, kdata->length); + for (i=0; i < (int)kdata->length; i++) + { + if (0 && isprint((int) kdata->data[i])) + printf( "%c ", kdata->data[i]); + else + printf( "%02x ", (unsigned char) kdata->data[i]); + } + printf("\n"); + } + + +/* Display contents of krb5_authdata struct, for debugging +*/ +void +print_krb5_authdata(char *label, krb5_authdata **adata) + { + if (adata == NULL) + { + printf("%s, authdata==0\n", label); + return; + } + printf("%s [%p]\n", label, (void *)adata); +#if 0 + { + int i; + printf("%s[at%d:%d] ", label, adata->ad_type, adata->length); + for (i=0; i < adata->length; i++) + { + printf((isprint(adata->contents[i]))? "%c ": "%02x", + adata->contents[i]); + } + printf("\n"); + } +#endif + } + + +/* Display contents of krb5_keyblock struct, for debugging +*/ +void +print_krb5_keyblock(char *label, krb5_keyblock *keyblk) + { + int i; + + if (keyblk == NULL) + { + printf("%s, keyblk==0\n", label); + return; + } +#ifdef KRB5_HEIMDAL + printf("%s\n\t[et%d:%d]: ", label, keyblk->keytype, + keyblk->keyvalue->length); + for (i=0; i < (int)keyblk->keyvalue->length; i++) + { + printf("%02x",(unsigned char *)(keyblk->keyvalue->contents)[i]); + } + printf("\n"); +#else + printf("%s\n\t[et%d:%d]: ", label, keyblk->enctype, keyblk->length); + for (i=0; i < (int)keyblk->length; i++) + { + printf("%02x",keyblk->contents[i]); + } + printf("\n"); +#endif + } + + +/* Display contents of krb5_principal_data struct, for debugging +** (krb5_principal is typedef'd == krb5_principal_data *) +*/ +void +print_krb5_princ(char *label, krb5_principal_data *princ) + { + int i, ui, uj; + + printf("%s principal Realm: ", label); + if (princ == NULL) return; + for (ui=0; ui < (int)princ->realm.length; ui++) putchar(princ->realm.data[ui]); + printf(" (nametype %d) has %d strings:\n", princ->type,princ->length); + for (i=0; i < (int)princ->length; i++) + { + printf("\t%d [%d]: ", i, princ->data[i].length); + for (uj=0; uj < (int)princ->data[i].length; uj++) { + putchar(princ->data[i].data[uj]); + } + printf("\n"); + } + return; + } + + +/* Given krb5 service (typically "kssl") and hostname in kssl_ctx, +** Return encrypted Kerberos ticket for service @ hostname. +** If authenp is non-NULL, also return encrypted authenticator, +** whose data should be freed by caller. +** (Originally was: Create Kerberos AP_REQ message for SSL Client.) +** +** 19990628 VRS Started; Returns Kerberos AP_REQ message. +** 20010409 VRS Modified for RFC2712; Returns enc tkt. +** 20010606 VRS May also return optional authenticator. +*/ +krb5_error_code +kssl_cget_tkt( /* UPDATE */ KSSL_CTX *kssl_ctx, + /* OUT */ krb5_data **enc_ticketp, + /* UPDATE */ krb5_data *authenp, + /* OUT */ KSSL_ERR *kssl_err) + { + krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC; + krb5_context krb5context = NULL; + krb5_auth_context krb5auth_context = NULL; + krb5_ccache krb5ccdef = NULL; + krb5_creds krb5creds, *krb5credsp = NULL; + krb5_data krb5_app_req; + + kssl_err_set(kssl_err, 0, ""); + memset((char *)&krb5creds, 0, sizeof(krb5creds)); + + if (!kssl_ctx) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "No kssl_ctx defined.\n"); + goto err; + } + else if (!kssl_ctx->service_host) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "kssl_ctx service_host undefined.\n"); + goto err; + } + + if ((krb5rc = krb5_init_context(&krb5context)) != 0) + { + BIO_snprintf(kssl_err->text,KSSL_ERR_MAX, + "krb5_init_context() fails: %d\n", krb5rc); + kssl_err->reason = SSL_R_KRB5_C_INIT; + goto err; + } + + if ((krb5rc = krb5_sname_to_principal(krb5context, + kssl_ctx->service_host, + (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC, + KRB5_NT_SRV_HST, &krb5creds.server)) != 0) + { + BIO_snprintf(kssl_err->text,KSSL_ERR_MAX, + "krb5_sname_to_principal() fails for %s/%s\n", + kssl_ctx->service_host, + (kssl_ctx->service_name)? kssl_ctx->service_name: + KRB5SVC); + kssl_err->reason = SSL_R_KRB5_C_INIT; + goto err; + } + + if ((krb5rc = krb5_cc_default(krb5context, &krb5ccdef)) != 0) + { + kssl_err_set(kssl_err, SSL_R_KRB5_C_CC_PRINC, + "krb5_cc_default fails.\n"); + goto err; + } + + if ((krb5rc = krb5_cc_get_principal(krb5context, krb5ccdef, + &krb5creds.client)) != 0) + { + kssl_err_set(kssl_err, SSL_R_KRB5_C_CC_PRINC, + "krb5_cc_get_principal() fails.\n"); + goto err; + } + + if ((krb5rc = krb5_get_credentials(krb5context, 0, krb5ccdef, + &krb5creds, &krb5credsp)) != 0) + { + kssl_err_set(kssl_err, SSL_R_KRB5_C_GET_CRED, + "krb5_get_credentials() fails.\n"); + goto err; + } + + *enc_ticketp = &krb5credsp->ticket; +#ifdef KRB5_HEIMDAL + kssl_ctx->enctype = krb5credsp->session.keytype; +#else + kssl_ctx->enctype = krb5credsp->keyblock.enctype; +#endif + + krb5rc = KRB5KRB_ERR_GENERIC; + /* caller should free data of krb5_app_req */ + /* 20010406 VRS deleted for real KerberosWrapper + ** 20010605 VRS reinstated to offer Authenticator to KerberosWrapper + */ + krb5_app_req.length = 0; + if (authenp) + { + krb5_data krb5in_data; + const unsigned char *p; + long arlen; + KRB5_APREQBODY *ap_req; + + authenp->length = 0; + krb5in_data.data = NULL; + krb5in_data.length = 0; + if ((krb5rc = krb5_mk_req_extended(krb5context, + &krb5auth_context, 0, &krb5in_data, krb5credsp, + &krb5_app_req)) != 0) + { + kssl_err_set(kssl_err, SSL_R_KRB5_C_MK_REQ, + "krb5_mk_req_extended() fails.\n"); + goto err; + } + + arlen = krb5_app_req.length; + p = (unsigned char *)krb5_app_req.data; + ap_req = (KRB5_APREQBODY *) d2i_KRB5_APREQ(NULL, &p, arlen); + if (ap_req) + { + authenp->length = i2d_KRB5_ENCDATA( + ap_req->authenticator, NULL); + if (authenp->length && + (authenp->data = malloc(authenp->length))) + { + unsigned char *adp = (unsigned char *)authenp->data; + authenp->length = i2d_KRB5_ENCDATA( + ap_req->authenticator, &adp); + } + } + + if (ap_req) KRB5_APREQ_free((KRB5_APREQ *) ap_req); + if (krb5_app_req.length) + kssl_krb5_free_data_contents(krb5context,&krb5_app_req); + } +#ifdef KRB5_HEIMDAL + if (kssl_ctx_setkey(kssl_ctx, &krb5credsp->session)) + { + kssl_err_set(kssl_err, SSL_R_KRB5_C_INIT, + "kssl_ctx_setkey() fails.\n"); + } +#else + if (kssl_ctx_setkey(kssl_ctx, &krb5credsp->keyblock)) + { + kssl_err_set(kssl_err, SSL_R_KRB5_C_INIT, + "kssl_ctx_setkey() fails.\n"); + } +#endif + else krb5rc = 0; + + err: +#ifdef KSSL_DEBUG + kssl_ctx_show(kssl_ctx); +#endif /* KSSL_DEBUG */ + + if (krb5creds.client) krb5_free_principal(krb5context, + krb5creds.client); + if (krb5creds.server) krb5_free_principal(krb5context, + krb5creds.server); + if (krb5auth_context) krb5_auth_con_free(krb5context, + krb5auth_context); + if (krb5context) krb5_free_context(krb5context); + return (krb5rc); + } + + +/* Given d2i_-decoded asn1ticket, allocate and return a new krb5_ticket. +** Return Kerberos error code and kssl_err struct on error. +** Allocates krb5_ticket and krb5_principal; caller should free these. +** +** 20010410 VRS Implemented krb5_decode_ticket() as +** old_krb5_decode_ticket(). Missing from MIT1.0.6. +** 20010615 VRS Re-cast as openssl/asn1 d2i_*() functions. +** Re-used some of the old krb5_decode_ticket() +** code here. This tkt should alloc/free just +** like the real thing. +*/ +krb5_error_code +kssl_TKT2tkt( /* IN */ krb5_context krb5context, + /* IN */ KRB5_TKTBODY *asn1ticket, + /* OUT */ krb5_ticket **krb5ticket, + /* OUT */ KSSL_ERR *kssl_err ) + { + krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC; + krb5_ticket *new5ticket = NULL; + ASN1_GENERALSTRING *gstr_svc, *gstr_host; + + *krb5ticket = NULL; + + if (asn1ticket == NULL || asn1ticket->realm == NULL || + asn1ticket->sname == NULL || + sk_ASN1_GENERALSTRING_num(asn1ticket->sname->namestring) < 2) + { + BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, + "Null field in asn1ticket.\n"); + kssl_err->reason = SSL_R_KRB5_S_RD_REQ; + return KRB5KRB_ERR_GENERIC; + } + + if ((new5ticket = (krb5_ticket *) calloc(1, sizeof(krb5_ticket)))==NULL) + { + BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, + "Unable to allocate new krb5_ticket.\n"); + kssl_err->reason = SSL_R_KRB5_S_RD_REQ; + return ENOMEM; /* or KRB5KRB_ERR_GENERIC; */ + } + + gstr_svc = sk_ASN1_GENERALSTRING_value(asn1ticket->sname->namestring, 0); + gstr_host = sk_ASN1_GENERALSTRING_value(asn1ticket->sname->namestring, 1); + + if ((krb5rc = kssl_build_principal_2(krb5context, + &new5ticket->server, + asn1ticket->realm->length, (char *)asn1ticket->realm->data, + gstr_svc->length, (char *)gstr_svc->data, + gstr_host->length, (char *)gstr_host->data)) != 0) + { + free(new5ticket); + BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, + "Error building ticket server principal.\n"); + kssl_err->reason = SSL_R_KRB5_S_RD_REQ; + return krb5rc; /* or KRB5KRB_ERR_GENERIC; */ + } + + krb5_princ_type(krb5context, new5ticket->server) = + asn1ticket->sname->nametype->data[0]; + new5ticket->enc_part.enctype = asn1ticket->encdata->etype->data[0]; + new5ticket->enc_part.kvno = asn1ticket->encdata->kvno->data[0]; + new5ticket->enc_part.ciphertext.length = + asn1ticket->encdata->cipher->length; + if ((new5ticket->enc_part.ciphertext.data = + calloc(1, asn1ticket->encdata->cipher->length)) == NULL) + { + free(new5ticket); + BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, + "Error allocating cipher in krb5ticket.\n"); + kssl_err->reason = SSL_R_KRB5_S_RD_REQ; + return KRB5KRB_ERR_GENERIC; + } + else + { + memcpy(new5ticket->enc_part.ciphertext.data, + asn1ticket->encdata->cipher->data, + asn1ticket->encdata->cipher->length); + } + + *krb5ticket = new5ticket; + return 0; + } + + +/* Given krb5 service name in KSSL_CTX *kssl_ctx (typically "kssl"), +** and krb5 AP_REQ message & message length, +** Return Kerberos session key and client principle +** to SSL Server in KSSL_CTX *kssl_ctx. +** +** 19990702 VRS Started. +*/ +krb5_error_code +kssl_sget_tkt( /* UPDATE */ KSSL_CTX *kssl_ctx, + /* IN */ krb5_data *indata, + /* OUT */ krb5_ticket_times *ttimes, + /* OUT */ KSSL_ERR *kssl_err ) + { + krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC; + static krb5_context krb5context = NULL; + static krb5_auth_context krb5auth_context = NULL; + krb5_ticket *krb5ticket = NULL; + KRB5_TKTBODY *asn1ticket = NULL; + const unsigned char *p; + krb5_keytab krb5keytab = NULL; + krb5_keytab_entry kt_entry; + krb5_principal krb5server; + krb5_rcache rcache = NULL; + + kssl_err_set(kssl_err, 0, ""); + + if (!kssl_ctx) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "No kssl_ctx defined.\n"); + goto err; + } + +#ifdef KSSL_DEBUG + printf("in kssl_sget_tkt(%s)\n", kstring(kssl_ctx->service_name)); +#endif /* KSSL_DEBUG */ + + if (!krb5context && (krb5rc = krb5_init_context(&krb5context))) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "krb5_init_context() fails.\n"); + goto err; + } + if (krb5auth_context && + (krb5rc = krb5_auth_con_free(krb5context, krb5auth_context))) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "krb5_auth_con_free() fails.\n"); + goto err; + } + else krb5auth_context = NULL; + if (!krb5auth_context && + (krb5rc = krb5_auth_con_init(krb5context, &krb5auth_context))) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "krb5_auth_con_init() fails.\n"); + goto err; + } + + + if ((krb5rc = krb5_auth_con_getrcache(krb5context, krb5auth_context, + &rcache))) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "krb5_auth_con_getrcache() fails.\n"); + goto err; + } + + if ((krb5rc = krb5_sname_to_principal(krb5context, NULL, + (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC, + KRB5_NT_SRV_HST, &krb5server)) != 0) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "krb5_sname_to_principal() fails.\n"); + goto err; + } + + if (rcache == NULL) + { + if ((krb5rc = krb5_get_server_rcache(krb5context, + krb5_princ_component(krb5context, krb5server, 0), + &rcache))) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "krb5_get_server_rcache() fails.\n"); + goto err; + } + } + + if ((krb5rc = krb5_auth_con_setrcache(krb5context, krb5auth_context, rcache))) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "krb5_auth_con_setrcache() fails.\n"); + goto err; + } + + + /* kssl_ctx->keytab_file == NULL ==> use Kerberos default + */ + if (kssl_ctx->keytab_file) + { + krb5rc = krb5_kt_resolve(krb5context, kssl_ctx->keytab_file, + &krb5keytab); + if (krb5rc) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "krb5_kt_resolve() fails.\n"); + goto err; + } + } + else + { + krb5rc = krb5_kt_default(krb5context,&krb5keytab); + if (krb5rc) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "krb5_kt_default() fails.\n"); + goto err; + } + } + + /* Actual Kerberos5 krb5_recvauth() has initial conversation here + ** o check KRB5_SENDAUTH_BADAUTHVERS + ** unless KRB5_RECVAUTH_SKIP_VERSION + ** o check KRB5_SENDAUTH_BADAPPLVERS + ** o send "0" msg if all OK + */ + + /* 20010411 was using AP_REQ instead of true KerberosWrapper + ** + ** if ((krb5rc = krb5_rd_req(krb5context, &krb5auth_context, + ** &krb5in_data, krb5server, krb5keytab, + ** &ap_option, &krb5ticket)) != 0) { Error } + */ + + p = (unsigned char *)indata->data; + if ((asn1ticket = (KRB5_TKTBODY *) d2i_KRB5_TICKET(NULL, &p, + (long) indata->length)) == NULL) + { + BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, + "d2i_KRB5_TICKET() ASN.1 decode failure.\n"); + kssl_err->reason = SSL_R_KRB5_S_RD_REQ; + goto err; + } + + /* Was: krb5rc = krb5_decode_ticket(krb5in_data,&krb5ticket)) != 0) */ + if ((krb5rc = kssl_TKT2tkt(krb5context, asn1ticket, &krb5ticket, + kssl_err)) != 0) + { + BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, + "Error converting ASN.1 ticket to krb5_ticket.\n"); + kssl_err->reason = SSL_R_KRB5_S_RD_REQ; + goto err; + } + + if (! krb5_principal_compare(krb5context, krb5server, + krb5ticket->server)) { + krb5rc = KRB5_PRINC_NOMATCH; + BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, + "server principal != ticket principal\n"); + kssl_err->reason = SSL_R_KRB5_S_RD_REQ; + goto err; + } + if ((krb5rc = krb5_kt_get_entry(krb5context, krb5keytab, + krb5ticket->server, krb5ticket->enc_part.kvno, + krb5ticket->enc_part.enctype, &kt_entry)) != 0) { + BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, + "krb5_kt_get_entry() fails with %x.\n", krb5rc); + kssl_err->reason = SSL_R_KRB5_S_RD_REQ; + goto err; + } + if ((krb5rc = krb5_decrypt_tkt_part(krb5context, &kt_entry.key, + krb5ticket)) != 0) { + BIO_snprintf(kssl_err->text, KSSL_ERR_MAX, + "krb5_decrypt_tkt_part() failed.\n"); + kssl_err->reason = SSL_R_KRB5_S_RD_REQ; + goto err; + } + else { + krb5_kt_free_entry(krb5context, &kt_entry); +#ifdef KSSL_DEBUG + { + int i; krb5_address **paddr = krb5ticket->enc_part2->caddrs; + printf("Decrypted ticket fields:\n"); + printf("\tflags: %X, transit-type: %X", + krb5ticket->enc_part2->flags, + krb5ticket->enc_part2->transited.tr_type); + print_krb5_data("\ttransit-data: ", + &(krb5ticket->enc_part2->transited.tr_contents)); + printf("\tcaddrs: %p, authdata: %p\n", + krb5ticket->enc_part2->caddrs, + krb5ticket->enc_part2->authorization_data); + if (paddr) + { + printf("\tcaddrs:\n"); + for (i=0; paddr[i] != NULL; i++) + { + krb5_data d; + d.length=paddr[i]->length; + d.data=paddr[i]->contents; + print_krb5_data("\t\tIP: ", &d); + } + } + printf("\tstart/auth/end times: %d / %d / %d\n", + krb5ticket->enc_part2->times.starttime, + krb5ticket->enc_part2->times.authtime, + krb5ticket->enc_part2->times.endtime); + } +#endif /* KSSL_DEBUG */ + } + + krb5rc = KRB5_NO_TKT_SUPPLIED; + if (!krb5ticket || !krb5ticket->enc_part2 || + !krb5ticket->enc_part2->client || + !krb5ticket->enc_part2->client->data || + !krb5ticket->enc_part2->session) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET, + "bad ticket from krb5_rd_req.\n"); + } + else if (kssl_ctx_setprinc(kssl_ctx, KSSL_CLIENT, + &krb5ticket->enc_part2->client->realm, + krb5ticket->enc_part2->client->data, + krb5ticket->enc_part2->client->length)) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET, + "kssl_ctx_setprinc() fails.\n"); + } + else if (kssl_ctx_setkey(kssl_ctx, krb5ticket->enc_part2->session)) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET, + "kssl_ctx_setkey() fails.\n"); + } + else if (krb5ticket->enc_part2->flags & TKT_FLG_INVALID) + { + krb5rc = KRB5KRB_AP_ERR_TKT_INVALID; + kssl_err_set(kssl_err, SSL_R_KRB5_S_BAD_TICKET, + "invalid ticket from krb5_rd_req.\n"); + } + else krb5rc = 0; + + kssl_ctx->enctype = krb5ticket->enc_part.enctype; + ttimes->authtime = krb5ticket->enc_part2->times.authtime; + ttimes->starttime = krb5ticket->enc_part2->times.starttime; + ttimes->endtime = krb5ticket->enc_part2->times.endtime; + ttimes->renew_till = krb5ticket->enc_part2->times.renew_till; + + err: +#ifdef KSSL_DEBUG + kssl_ctx_show(kssl_ctx); +#endif /* KSSL_DEBUG */ + + if (asn1ticket) KRB5_TICKET_free((KRB5_TICKET *) asn1ticket); + if (krb5keytab) krb5_kt_close(krb5context, krb5keytab); + if (krb5ticket) krb5_free_ticket(krb5context, krb5ticket); + if (krb5server) krb5_free_principal(krb5context, krb5server); + return (krb5rc); + } + + +/* Allocate & return a new kssl_ctx struct. +*/ +KSSL_CTX * +kssl_ctx_new(void) + { + return ((KSSL_CTX *) kssl_calloc(1, sizeof(KSSL_CTX))); + } + + +/* Frees a kssl_ctx struct and any allocated memory it holds. +** Returns NULL. +*/ +KSSL_CTX * +kssl_ctx_free(KSSL_CTX *kssl_ctx) + { + if (kssl_ctx == NULL) return kssl_ctx; + + if (kssl_ctx->key) OPENSSL_cleanse(kssl_ctx->key, + kssl_ctx->length); + if (kssl_ctx->key) kssl_free(kssl_ctx->key); + if (kssl_ctx->client_princ) kssl_free(kssl_ctx->client_princ); + if (kssl_ctx->service_host) kssl_free(kssl_ctx->service_host); + if (kssl_ctx->service_name) kssl_free(kssl_ctx->service_name); + if (kssl_ctx->keytab_file) kssl_free(kssl_ctx->keytab_file); + + kssl_free(kssl_ctx); + return (KSSL_CTX *) NULL; + } + + +/* Given an array of (krb5_data *) entity (and optional realm), +** set the plain (char *) client_princ or service_host member +** of the kssl_ctx struct. +*/ +krb5_error_code +kssl_ctx_setprinc(KSSL_CTX *kssl_ctx, int which, + krb5_data *realm, krb5_data *entity, int nentities) + { + char **princ; + int length; + int i; + + if (kssl_ctx == NULL || entity == NULL) return KSSL_CTX_ERR; + + switch (which) + { + case KSSL_CLIENT: princ = &kssl_ctx->client_princ; break; + case KSSL_SERVER: princ = &kssl_ctx->service_host; break; + default: return KSSL_CTX_ERR; break; + } + if (*princ) kssl_free(*princ); + + /* Add up all the entity->lengths */ + length = 0; + for (i=0; i < nentities; i++) + { + length += entity[i].length; + } + /* Add in space for the '/' character(s) (if any) */ + length += nentities-1; + /* Space for the ('@'+realm+NULL | NULL) */ + length += ((realm)? realm->length + 2: 1); + + if ((*princ = kssl_calloc(1, length)) == NULL) + return KSSL_CTX_ERR; + else + { + for (i = 0; i < nentities; i++) + { + strncat(*princ, entity[i].data, entity[i].length); + if (i < nentities-1) + { + strcat (*princ, "/"); + } + } + if (realm) + { + strcat (*princ, "@"); + (void) strncat(*princ, realm->data, realm->length); + } + } + + return KSSL_CTX_OK; + } + + +/* Set one of the plain (char *) string members of the kssl_ctx struct. +** Default values should be: +** which == KSSL_SERVICE => "khost" (KRB5SVC) +** which == KSSL_KEYTAB => "/etc/krb5.keytab" (KRB5KEYTAB) +*/ +krb5_error_code +kssl_ctx_setstring(KSSL_CTX *kssl_ctx, int which, char *text) + { + char **string; + + if (!kssl_ctx) return KSSL_CTX_ERR; + + switch (which) + { + case KSSL_SERVICE: string = &kssl_ctx->service_name; break; + case KSSL_SERVER: string = &kssl_ctx->service_host; break; + case KSSL_CLIENT: string = &kssl_ctx->client_princ; break; + case KSSL_KEYTAB: string = &kssl_ctx->keytab_file; break; + default: return KSSL_CTX_ERR; break; + } + if (*string) kssl_free(*string); + + if (!text) + { + *string = '\0'; + return KSSL_CTX_OK; + } + + if ((*string = kssl_calloc(1, strlen(text) + 1)) == NULL) + return KSSL_CTX_ERR; + else + strcpy(*string, text); + + return KSSL_CTX_OK; + } + + +/* Copy the Kerberos session key from a (krb5_keyblock *) to a kssl_ctx +** struct. Clear kssl_ctx->key if Kerberos session key is NULL. +*/ +krb5_error_code +kssl_ctx_setkey(KSSL_CTX *kssl_ctx, krb5_keyblock *session) + { + int length; + krb5_enctype enctype; + krb5_octet FAR *contents = NULL; + + if (!kssl_ctx) return KSSL_CTX_ERR; + + if (kssl_ctx->key) + { + OPENSSL_cleanse(kssl_ctx->key, kssl_ctx->length); + kssl_free(kssl_ctx->key); + } + + if (session) + { + +#ifdef KRB5_HEIMDAL + length = session->keyvalue->length; + enctype = session->keytype; + contents = session->keyvalue->contents; +#else + length = session->length; + enctype = session->enctype; + contents = session->contents; +#endif + kssl_ctx->enctype = enctype; + kssl_ctx->length = length; + } + else + { + kssl_ctx->enctype = ENCTYPE_UNKNOWN; + kssl_ctx->length = 0; + return KSSL_CTX_OK; + } + + if ((kssl_ctx->key = + (krb5_octet FAR *) kssl_calloc(1, kssl_ctx->length)) == NULL) + { + kssl_ctx->length = 0; + return KSSL_CTX_ERR; + } + else + memcpy(kssl_ctx->key, contents, length); + + return KSSL_CTX_OK; + } + + +/* Display contents of kssl_ctx struct +*/ +void +kssl_ctx_show(KSSL_CTX *kssl_ctx) + { + int i; + + printf("kssl_ctx: "); + if (kssl_ctx == NULL) + { + printf("NULL\n"); + return; + } + else + printf("%p\n", (void *)kssl_ctx); + + printf("\tservice:\t%s\n", + (kssl_ctx->service_name)? kssl_ctx->service_name: "NULL"); + printf("\tclient:\t%s\n", + (kssl_ctx->client_princ)? kssl_ctx->client_princ: "NULL"); + printf("\tserver:\t%s\n", + (kssl_ctx->service_host)? kssl_ctx->service_host: "NULL"); + printf("\tkeytab:\t%s\n", + (kssl_ctx->keytab_file)? kssl_ctx->keytab_file: "NULL"); + printf("\tkey [%d:%d]:\t", + kssl_ctx->enctype, kssl_ctx->length); + + for (i=0; i < kssl_ctx->length && kssl_ctx->key; i++) + { + printf("%02x", kssl_ctx->key[i]); + } + printf("\n"); + return; + } + + int + kssl_keytab_is_available(KSSL_CTX *kssl_ctx) +{ + krb5_context krb5context = NULL; + krb5_keytab krb5keytab = NULL; + krb5_keytab_entry entry; + krb5_principal princ = NULL; + krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC; + int rc = 0; + + if ((krb5rc = krb5_init_context(&krb5context))) + return(0); + + /* kssl_ctx->keytab_file == NULL ==> use Kerberos default + */ + if (kssl_ctx->keytab_file) + { + krb5rc = krb5_kt_resolve(krb5context, kssl_ctx->keytab_file, + &krb5keytab); + if (krb5rc) + goto exit; + } + else + { + krb5rc = krb5_kt_default(krb5context,&krb5keytab); + if (krb5rc) + goto exit; + } + + /* the host key we are looking for */ + krb5rc = krb5_sname_to_principal(krb5context, NULL, + kssl_ctx->service_name ? kssl_ctx->service_name: KRB5SVC, + KRB5_NT_SRV_HST, &princ); + + krb5rc = krb5_kt_get_entry(krb5context, krb5keytab, + princ, + 0 /* IGNORE_VNO */, + 0 /* IGNORE_ENCTYPE */, + &entry); + if ( krb5rc == KRB5_KT_NOTFOUND ) { + rc = 1; + goto exit; + } else if ( krb5rc ) + goto exit; + + krb5_kt_free_entry(krb5context, &entry); + rc = 1; + + exit: + if (krb5keytab) krb5_kt_close(krb5context, krb5keytab); + if (princ) krb5_free_principal(krb5context, princ); + if (krb5context) krb5_free_context(krb5context); + return(rc); +} + +int +kssl_tgt_is_available(KSSL_CTX *kssl_ctx) + { + krb5_error_code krb5rc = KRB5KRB_ERR_GENERIC; + krb5_context krb5context = NULL; + krb5_ccache krb5ccdef = NULL; + krb5_creds krb5creds, *krb5credsp = NULL; + int rc = 0; + + memset((char *)&krb5creds, 0, sizeof(krb5creds)); + + if (!kssl_ctx) + return(0); + + if (!kssl_ctx->service_host) + return(0); + + if ((krb5rc = krb5_init_context(&krb5context)) != 0) + goto err; + + if ((krb5rc = krb5_sname_to_principal(krb5context, + kssl_ctx->service_host, + (kssl_ctx->service_name)? kssl_ctx->service_name: KRB5SVC, + KRB5_NT_SRV_HST, &krb5creds.server)) != 0) + goto err; + + if ((krb5rc = krb5_cc_default(krb5context, &krb5ccdef)) != 0) + goto err; + + if ((krb5rc = krb5_cc_get_principal(krb5context, krb5ccdef, + &krb5creds.client)) != 0) + goto err; + + if ((krb5rc = krb5_get_credentials(krb5context, 0, krb5ccdef, + &krb5creds, &krb5credsp)) != 0) + goto err; + + rc = 1; + + err: +#ifdef KSSL_DEBUG + kssl_ctx_show(kssl_ctx); +#endif /* KSSL_DEBUG */ + + if (krb5creds.client) krb5_free_principal(krb5context, krb5creds.client); + if (krb5creds.server) krb5_free_principal(krb5context, krb5creds.server); + if (krb5context) krb5_free_context(krb5context); + return(rc); + } + +#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_WIN32) +void kssl_krb5_free_data_contents(krb5_context context, krb5_data *data) + { +#ifdef KRB5_HEIMDAL + data->length = 0; + if (data->data) + free(data->data); +#elif defined(KRB5_MIT_OLD11) + if (data->data) { + krb5_xfree(data->data); + data->data = 0; + } +#else + krb5_free_data_contents(NULL, data); +#endif + } +#endif /* !OPENSSL_SYS_WINDOWS && !OPENSSL_SYS_WIN32 */ + + +/* Given pointers to KerberosTime and struct tm structs, convert the +** KerberosTime string to struct tm. Note that KerberosTime is a +** ASN1_GENERALIZEDTIME value, constrained to GMT with no fractional +** seconds as defined in RFC 1510. +** Return pointer to the (partially) filled in struct tm on success, +** return NULL on failure. +*/ +struct tm *k_gmtime(ASN1_GENERALIZEDTIME *gtime, struct tm *k_tm) + { + char c, *p; + + if (!k_tm) return NULL; + if (gtime == NULL || gtime->length < 14) return NULL; + if (gtime->data == NULL) return NULL; + + p = (char *)>ime->data[14]; + + c = *p; *p = '\0'; p -= 2; k_tm->tm_sec = atoi(p); *(p+2) = c; + c = *p; *p = '\0'; p -= 2; k_tm->tm_min = atoi(p); *(p+2) = c; + c = *p; *p = '\0'; p -= 2; k_tm->tm_hour = atoi(p); *(p+2) = c; + c = *p; *p = '\0'; p -= 2; k_tm->tm_mday = atoi(p); *(p+2) = c; + c = *p; *p = '\0'; p -= 2; k_tm->tm_mon = atoi(p)-1; *(p+2) = c; + c = *p; *p = '\0'; p -= 4; k_tm->tm_year = atoi(p)-1900; *(p+4) = c; + + return k_tm; + } + + +/* Helper function for kssl_validate_times(). +** We need context->clockskew, but krb5_context is an opaque struct. +** So we try to sneek the clockskew out through the replay cache. +** If that fails just return a likely default (300 seconds). +*/ +krb5_deltat get_rc_clockskew(krb5_context context) + { + krb5_rcache rc; + krb5_deltat clockskew; + + if (krb5_rc_default(context, &rc)) return KSSL_CLOCKSKEW; + if (krb5_rc_initialize(context, rc, 0)) return KSSL_CLOCKSKEW; + if (krb5_rc_get_lifespan(context, rc, &clockskew)) { + clockskew = KSSL_CLOCKSKEW; + } + (void) krb5_rc_destroy(context, rc); + return clockskew; + } + + +/* kssl_validate_times() combines (and more importantly exposes) +** the MIT KRB5 internal function krb5_validate_times() and the +** in_clock_skew() macro. The authenticator client time is checked +** to be within clockskew secs of the current time and the current +** time is checked to be within the ticket start and expire times. +** Either check may be omitted by supplying a NULL value. +** Returns 0 for valid times, SSL_R_KRB5* error codes otherwise. +** See Also: (Kerberos source)/krb5/lib/krb5/krb/valid_times.c +** 20010420 VRS +*/ +krb5_error_code kssl_validate_times( krb5_timestamp atime, + krb5_ticket_times *ttimes) + { + krb5_deltat skew; + krb5_timestamp start, now; + krb5_error_code rc; + krb5_context context; + + if ((rc = krb5_init_context(&context))) return SSL_R_KRB5_S_BAD_TICKET; + skew = get_rc_clockskew(context); + if ((rc = krb5_timeofday(context,&now))) return SSL_R_KRB5_S_BAD_TICKET; + krb5_free_context(context); + + if (atime && labs(atime - now) >= skew) return SSL_R_KRB5_S_TKT_SKEW; + + if (! ttimes) return 0; + + start = (ttimes->starttime != 0)? ttimes->starttime: ttimes->authtime; + if (start - now > skew) return SSL_R_KRB5_S_TKT_NYV; + if ((now - ttimes->endtime) > skew) return SSL_R_KRB5_S_TKT_EXPIRED; + +#ifdef KSSL_DEBUG + printf("kssl_validate_times: %d |<- | %d - %d | < %d ->| %d\n", + start, atime, now, skew, ttimes->endtime); +#endif /* KSSL_DEBUG */ + + return 0; + } + + +/* Decode and decrypt given DER-encoded authenticator, then pass +** authenticator ctime back in *atimep (or 0 if time unavailable). +** Returns krb5_error_code and kssl_err on error. A NULL +** authenticator (authentp->length == 0) is not considered an error. +** Note that kssl_check_authent() makes use of the KRB5 session key; +** you must call kssl_sget_tkt() to get the key before calling this routine. +*/ +krb5_error_code kssl_check_authent( + /* IN */ KSSL_CTX *kssl_ctx, + /* IN */ krb5_data *authentp, + /* OUT */ krb5_timestamp *atimep, + /* OUT */ KSSL_ERR *kssl_err ) + { + krb5_error_code krb5rc = 0; + KRB5_ENCDATA *dec_authent = NULL; + KRB5_AUTHENTBODY *auth = NULL; + krb5_enctype enctype; + EVP_CIPHER_CTX ciph_ctx; + const EVP_CIPHER *enc = NULL; + unsigned char iv[EVP_MAX_IV_LENGTH]; + const unsigned char *p; + unsigned char *unenc_authent; + int outl, unencbufsize; + struct tm tm_time, *tm_l, *tm_g; + time_t now, tl, tg, tr, tz_offset; + + EVP_CIPHER_CTX_init(&ciph_ctx); + *atimep = 0; + kssl_err_set(kssl_err, 0, ""); + +#ifndef KRB5CHECKAUTH + authentp = NULL; +#else +#if KRB5CHECKAUTH == 0 + authentp = NULL; +#endif +#endif /* KRB5CHECKAUTH */ + + if (authentp == NULL || authentp->length == 0) return 0; + +#ifdef KSSL_DEBUG + { + unsigned int ui; + printf("kssl_check_authent: authenticator[%d]:\n",authentp->length); + p = authentp->data; + for (ui=0; ui < authentp->length; ui++) printf("%02x ",p[ui]); + printf("\n"); + } +#endif /* KSSL_DEBUG */ + + unencbufsize = 2 * authentp->length; + if ((unenc_authent = calloc(1, unencbufsize)) == NULL) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "Unable to allocate authenticator buffer.\n"); + krb5rc = KRB5KRB_ERR_GENERIC; + goto err; + } + + p = (unsigned char *)authentp->data; + if ((dec_authent = d2i_KRB5_ENCDATA(NULL, &p, + (long) authentp->length)) == NULL) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "Error decoding authenticator.\n"); + krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY; + goto err; + } + + enctype = dec_authent->etype->data[0]; /* should = kssl_ctx->enctype */ +#if !defined(KRB5_MIT_OLD11) + switch ( enctype ) { + case ENCTYPE_DES3_CBC_SHA1: /* EVP_des_ede3_cbc(); */ + case ENCTYPE_DES3_CBC_SHA: + case ENCTYPE_DES3_CBC_RAW: + krb5rc = 0; /* Skip, can't handle derived keys */ + goto err; + } +#endif + enc = kssl_map_enc(enctype); + memset(iv, 0, sizeof iv); /* per RFC 1510 */ + + if (enc == NULL) + { + /* Disable kssl_check_authent for ENCTYPE_DES3_CBC_SHA1. + ** This enctype indicates the authenticator was encrypted + ** using key-usage derived keys which openssl cannot decrypt. + */ + goto err; + } + + if (!EVP_CipherInit(&ciph_ctx,enc,kssl_ctx->key,iv,0)) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "EVP_CipherInit error decrypting authenticator.\n"); + krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY; + goto err; + } + outl = dec_authent->cipher->length; + if (!EVP_Cipher(&ciph_ctx,unenc_authent,dec_authent->cipher->data,outl)) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "EVP_Cipher error decrypting authenticator.\n"); + krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY; + goto err; + } + EVP_CIPHER_CTX_cleanup(&ciph_ctx); + +#ifdef KSSL_DEBUG + printf("kssl_check_authent: decrypted authenticator[%d] =\n", outl); + for (padl=0; padl < outl; padl++) printf("%02x ",unenc_authent[padl]); + printf("\n"); +#endif /* KSSL_DEBUG */ + + if ((p = kssl_skip_confound(enctype, unenc_authent)) == NULL) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "confounded by authenticator.\n"); + krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY; + goto err; + } + outl -= p - unenc_authent; + + if ((auth = (KRB5_AUTHENTBODY *) d2i_KRB5_AUTHENT(NULL, &p, + (long) outl))==NULL) + { + kssl_err_set(kssl_err, SSL_R_KRB5_S_INIT, + "Error decoding authenticator body.\n"); + krb5rc = KRB5KRB_AP_ERR_BAD_INTEGRITY; + goto err; + } + + memset(&tm_time,0,sizeof(struct tm)); + if (k_gmtime(auth->ctime, &tm_time) && + ((tr = mktime(&tm_time)) != (time_t)(-1))) + { + now = time(&now); + tm_l = localtime(&now); tl = mktime(tm_l); + tm_g = gmtime(&now); tg = mktime(tm_g); + tz_offset = tg - tl; + + *atimep = tr - tz_offset; + } + +#ifdef KSSL_DEBUG + printf("kssl_check_authent: returns %d for client time ", *atimep); + if (auth && auth->ctime && auth->ctime->length && auth->ctime->data) + printf("%.*s\n", auth->ctime->length, auth->ctime->data); + else printf("NULL\n"); +#endif /* KSSL_DEBUG */ + + err: + if (auth) KRB5_AUTHENT_free((KRB5_AUTHENT *) auth); + if (dec_authent) KRB5_ENCDATA_free(dec_authent); + if (unenc_authent) free(unenc_authent); + EVP_CIPHER_CTX_cleanup(&ciph_ctx); + return krb5rc; + } + + +/* Replaces krb5_build_principal_ext(), with varargs length == 2 (svc, host), +** because I dont't know how to stub varargs. +** Returns krb5_error_code == ENOMEM on alloc error, otherwise +** passes back newly constructed principal, which should be freed by caller. +*/ +krb5_error_code kssl_build_principal_2( + /* UPDATE */ krb5_context context, + /* OUT */ krb5_principal *princ, + /* IN */ int rlen, const char *realm, + /* IN */ int slen, const char *svc, + /* IN */ int hlen, const char *host) + { + krb5_data *p_data = NULL; + krb5_principal new_p = NULL; + char *new_r = NULL; + + if ((p_data = (krb5_data *) calloc(2, sizeof(krb5_data))) == NULL || + (new_p = (krb5_principal) calloc(1, sizeof(krb5_principal_data))) + == NULL) goto err; + new_p->length = 2; + new_p->data = p_data; + + if ((new_r = calloc(1, rlen + 1)) == NULL) goto err; + memcpy(new_r, realm, rlen); + krb5_princ_set_realm_length(context, new_p, rlen); + krb5_princ_set_realm_data(context, new_p, new_r); + + if ((new_p->data[0].data = calloc(1, slen + 1)) == NULL) goto err; + memcpy(new_p->data[0].data, svc, slen); + new_p->data[0].length = slen; + + if ((new_p->data[1].data = calloc(1, hlen + 1)) == NULL) goto err; + memcpy(new_p->data[1].data, host, hlen); + new_p->data[1].length = hlen; + + krb5_princ_type(context, new_p) = KRB5_NT_UNKNOWN; + *princ = new_p; + return 0; + + err: + if (new_p && new_p[0].data) free(new_p[0].data); + if (new_p && new_p[1].data) free(new_p[1].data); + if (new_p) free(new_p); + if (new_r) free(new_r); + return ENOMEM; + } + + +#else /* !OPENSSL_NO_KRB5 */ + +#if defined(PEDANTIC) || defined(OPENSSL_SYS_VMS) +static int dummy=(int)&dummy; +#endif + +#endif /* !OPENSSL_NO_KRB5 */ + diff --git a/ssl/kssl.h b/ssl/kssl.h new file mode 100644 index 000000000000..a3d20e1ccbdc --- /dev/null +++ b/ssl/kssl.h @@ -0,0 +1,179 @@ +/* ssl/kssl.h -*- mode: C; c-file-style: "eay" -*- */ +/* Written by Vern Staats <staatsvr@asc.hpc.mil> for the OpenSSL project 2000. + * project 2000. + */ +/* ==================================================================== + * Copyright (c) 2000 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +/* +** 19990701 VRS Started. +*/ + +#ifndef KSSL_H +#define KSSL_H + +#include <openssl/opensslconf.h> + +#ifndef OPENSSL_NO_KRB5 + +#include <stdio.h> +#include <ctype.h> +#include <krb5.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* +** Depending on which KRB5 implementation used, some types from +** the other may be missing. Resolve that here and now +*/ +#ifdef KRB5_HEIMDAL +typedef unsigned char krb5_octet; +#define FAR +#else + +#ifndef FAR +#define FAR +#endif + +#endif + +/* Uncomment this to debug kssl problems or +** to trace usage of the Kerberos session key +** +** #define KSSL_DEBUG +*/ + +#ifndef KRB5SVC +#define KRB5SVC "host" +#endif + +#ifndef KRB5KEYTAB +#define KRB5KEYTAB "/etc/krb5.keytab" +#endif + +#ifndef KRB5SENDAUTH +#define KRB5SENDAUTH 1 +#endif + +#ifndef KRB5CHECKAUTH +#define KRB5CHECKAUTH 1 +#endif + +#ifndef KSSL_CLOCKSKEW +#define KSSL_CLOCKSKEW 300; +#endif + +#define KSSL_ERR_MAX 255 +typedef struct kssl_err_st { + int reason; + char text[KSSL_ERR_MAX+1]; + } KSSL_ERR; + + +/* Context for passing +** (1) Kerberos session key to SSL, and +** (2) Config data between application and SSL lib +*/ +typedef struct kssl_ctx_st + { + /* used by: disposition: */ + char *service_name; /* C,S default ok (kssl) */ + char *service_host; /* C input, REQUIRED */ + char *client_princ; /* S output from krb5 ticket */ + char *keytab_file; /* S NULL (/etc/krb5.keytab) */ + char *cred_cache; /* C NULL (default) */ + krb5_enctype enctype; + int length; + krb5_octet FAR *key; + } KSSL_CTX; + +#define KSSL_CLIENT 1 +#define KSSL_SERVER 2 +#define KSSL_SERVICE 3 +#define KSSL_KEYTAB 4 + +#define KSSL_CTX_OK 0 +#define KSSL_CTX_ERR 1 +#define KSSL_NOMEM 2 + +/* Public (for use by applications that use OpenSSL with Kerberos 5 support */ +krb5_error_code kssl_ctx_setstring(KSSL_CTX *kssl_ctx, int which, char *text); +KSSL_CTX *kssl_ctx_new(void); +KSSL_CTX *kssl_ctx_free(KSSL_CTX *kssl_ctx); +void kssl_ctx_show(KSSL_CTX *kssl_ctx); +krb5_error_code kssl_ctx_setprinc(KSSL_CTX *kssl_ctx, int which, + krb5_data *realm, krb5_data *entity, int nentities); +krb5_error_code kssl_cget_tkt(KSSL_CTX *kssl_ctx, krb5_data **enc_tktp, + krb5_data *authenp, KSSL_ERR *kssl_err); +krb5_error_code kssl_sget_tkt(KSSL_CTX *kssl_ctx, krb5_data *indata, + krb5_ticket_times *ttimes, KSSL_ERR *kssl_err); +krb5_error_code kssl_ctx_setkey(KSSL_CTX *kssl_ctx, krb5_keyblock *session); +void kssl_err_set(KSSL_ERR *kssl_err, int reason, char *text); +void kssl_krb5_free_data_contents(krb5_context context, krb5_data *data); +krb5_error_code kssl_build_principal_2(krb5_context context, + krb5_principal *princ, int rlen, const char *realm, + int slen, const char *svc, int hlen, const char *host); +krb5_error_code kssl_validate_times(krb5_timestamp atime, + krb5_ticket_times *ttimes); +krb5_error_code kssl_check_authent(KSSL_CTX *kssl_ctx, krb5_data *authentp, + krb5_timestamp *atimep, KSSL_ERR *kssl_err); +unsigned char *kssl_skip_confound(krb5_enctype enctype, unsigned char *authn); + +#ifdef __cplusplus +} +#endif +#endif /* OPENSSL_NO_KRB5 */ +#endif /* KSSL_H */ diff --git a/ssl/kssl_lcl.h b/ssl/kssl_lcl.h new file mode 100644 index 000000000000..4cd8dd2d7fe4 --- /dev/null +++ b/ssl/kssl_lcl.h @@ -0,0 +1,87 @@ +/* ssl/kssl.h -*- mode: C; c-file-style: "eay" -*- */ +/* Written by Vern Staats <staatsvr@asc.hpc.mil> for the OpenSSL project 2000. + * project 2000. + */ +/* ==================================================================== + * Copyright (c) 2000 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#ifndef KSSL_LCL_H +#define KSSL_LCL_H + +#include <openssl/kssl.h> + +#ifndef OPENSSL_NO_KRB5 + +#ifdef __cplusplus +extern "C" { +#endif + +/* Private (internal to OpenSSL) */ +void print_krb5_data(char *label, krb5_data *kdata); +void print_krb5_authdata(char *label, krb5_authdata **adata); +void print_krb5_keyblock(char *label, krb5_keyblock *keyblk); + +char *kstring(char *string); +char *knumber(int len, krb5_octet *contents); + +EVP_CIPHER *kssl_map_enc(krb5_enctype enctype); + +int kssl_keytab_is_available(KSSL_CTX *kssl_ctx); +int kssl_tgt_is_available(KSSL_CTX *kssl_ctx); + +#ifdef __cplusplus +} +#endif +#endif /* OPENSSL_NO_KRB5 */ +#endif /* KSSL_LCL_H */ diff --git a/ssl/s23_clnt.c b/ssl/s23_clnt.c new file mode 100644 index 000000000000..769dabdbb83c --- /dev/null +++ b/ssl/s23_clnt.c @@ -0,0 +1,581 @@ +/* ssl/s23_clnt.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "ssl_locl.h" +#include <openssl/buffer.h> +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/evp.h> + +static SSL_METHOD *ssl23_get_client_method(int ver); +static int ssl23_client_hello(SSL *s); +static int ssl23_get_server_hello(SSL *s); +static SSL_METHOD *ssl23_get_client_method(int ver) + { +#ifndef OPENSSL_NO_SSL2 + if (ver == SSL2_VERSION) + return(SSLv2_client_method()); +#endif + if (ver == SSL3_VERSION) + return(SSLv3_client_method()); + else if (ver == TLS1_VERSION) + return(TLSv1_client_method()); + else + return(NULL); + } + +IMPLEMENT_ssl23_meth_func(SSLv23_client_method, + ssl_undefined_function, + ssl23_connect, + ssl23_get_client_method) + +int ssl23_connect(SSL *s) + { + BUF_MEM *buf=NULL; + unsigned long Time=(unsigned long)time(NULL); + void (*cb)(const SSL *ssl,int type,int val)=NULL; + int ret= -1; + int new_state,state; + + RAND_add(&Time,sizeof(Time),0); + ERR_clear_error(); + clear_sys_error(); + + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); + + for (;;) + { + state=s->state; + + switch(s->state) + { + case SSL_ST_BEFORE: + case SSL_ST_CONNECT: + case SSL_ST_BEFORE|SSL_ST_CONNECT: + case SSL_ST_OK|SSL_ST_CONNECT: + + if (s->session != NULL) + { + SSLerr(SSL_F_SSL23_CONNECT,SSL_R_SSL23_DOING_SESSION_ID_REUSE); + ret= -1; + goto end; + } + s->server=0; + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); + + /* s->version=TLS1_VERSION; */ + s->type=SSL_ST_CONNECT; + + if (s->init_buf == NULL) + { + if ((buf=BUF_MEM_new()) == NULL) + { + ret= -1; + goto end; + } + if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH)) + { + ret= -1; + goto end; + } + s->init_buf=buf; + buf=NULL; + } + + if (!ssl3_setup_buffers(s)) { ret= -1; goto end; } + + ssl3_init_finished_mac(s); + + s->state=SSL23_ST_CW_CLNT_HELLO_A; + s->ctx->stats.sess_connect++; + s->init_num=0; + break; + + case SSL23_ST_CW_CLNT_HELLO_A: + case SSL23_ST_CW_CLNT_HELLO_B: + + s->shutdown=0; + ret=ssl23_client_hello(s); + if (ret <= 0) goto end; + s->state=SSL23_ST_CR_SRVR_HELLO_A; + s->init_num=0; + + break; + + case SSL23_ST_CR_SRVR_HELLO_A: + case SSL23_ST_CR_SRVR_HELLO_B: + ret=ssl23_get_server_hello(s); + if (ret >= 0) cb=NULL; + goto end; + /* break; */ + + default: + SSLerr(SSL_F_SSL23_CONNECT,SSL_R_UNKNOWN_STATE); + ret= -1; + goto end; + /* break; */ + } + + if (s->debug) { (void)BIO_flush(s->wbio); } + + if ((cb != NULL) && (s->state != state)) + { + new_state=s->state; + s->state=state; + cb(s,SSL_CB_CONNECT_LOOP,1); + s->state=new_state; + } + } +end: + s->in_handshake--; + if (buf != NULL) + BUF_MEM_free(buf); + if (cb != NULL) + cb(s,SSL_CB_CONNECT_EXIT,ret); + return(ret); + } + + +static int ssl23_client_hello(SSL *s) + { + unsigned char *buf; + unsigned char *p,*d; + int i,j,ch_len; + unsigned long Time,l; + int ssl2_compat; + int version = 0, version_major, version_minor; + SSL_COMP *comp; + int ret; + + ssl2_compat = (s->options & SSL_OP_NO_SSLv2) ? 0 : 1; + + if (!(s->options & SSL_OP_NO_TLSv1)) + { + version = TLS1_VERSION; + } + else if (!(s->options & SSL_OP_NO_SSLv3)) + { + version = SSL3_VERSION; + } + else if (!(s->options & SSL_OP_NO_SSLv2)) + { + version = SSL2_VERSION; + } + + buf=(unsigned char *)s->init_buf->data; + if (s->state == SSL23_ST_CW_CLNT_HELLO_A) + { +#if 0 + /* don't reuse session-id's */ + if (!ssl_get_new_session(s,0)) + { + return(-1); + } +#endif + + p=s->s3->client_random; + Time=(unsigned long)time(NULL); /* Time */ + l2n(Time,p); + if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0) + return -1; + + if (version == TLS1_VERSION) + { + version_major = TLS1_VERSION_MAJOR; + version_minor = TLS1_VERSION_MINOR; + } + else if (version == SSL3_VERSION) + { + version_major = SSL3_VERSION_MAJOR; + version_minor = SSL3_VERSION_MINOR; + } + else if (version == SSL2_VERSION) + { + version_major = SSL2_VERSION_MAJOR; + version_minor = SSL2_VERSION_MINOR; + } + else + { + SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_PROTOCOLS_AVAILABLE); + return(-1); + } + + s->client_version = version; + + if (ssl2_compat) + { + /* create SSL 2.0 compatible Client Hello */ + + /* two byte record header will be written last */ + d = &(buf[2]); + p = d + 9; /* leave space for message type, version, individual length fields */ + + *(d++) = SSL2_MT_CLIENT_HELLO; + *(d++) = version_major; + *(d++) = version_minor; + + /* Ciphers supported */ + i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),p,0); + if (i == 0) + { + /* no ciphers */ + SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE); + return -1; + } + s2n(i,d); + p+=i; + + /* put in the session-id length (zero since there is no reuse) */ +#if 0 + s->session->session_id_length=0; +#endif + s2n(0,d); + + if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG) + ch_len=SSL2_CHALLENGE_LENGTH; + else + ch_len=SSL2_MAX_CHALLENGE_LENGTH; + + /* write out sslv2 challenge */ + if (SSL3_RANDOM_SIZE < ch_len) + i=SSL3_RANDOM_SIZE; + else + i=ch_len; + s2n(i,d); + memset(&(s->s3->client_random[0]),0,SSL3_RANDOM_SIZE); + if (RAND_pseudo_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i) <= 0) + return -1; + + memcpy(p,&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i); + p+=i; + + i= p- &(buf[2]); + buf[0]=((i>>8)&0xff)|0x80; + buf[1]=(i&0xff); + + /* number of bytes to write */ + s->init_num=i+2; + s->init_off=0; + + ssl3_finish_mac(s,&(buf[2]),i); + } + else + { + /* create Client Hello in SSL 3.0/TLS 1.0 format */ + + /* do the record header (5 bytes) and handshake message header (4 bytes) last */ + d = p = &(buf[9]); + + *(p++) = version_major; + *(p++) = version_minor; + + /* Random stuff */ + memcpy(p, s->s3->client_random, SSL3_RANDOM_SIZE); + p += SSL3_RANDOM_SIZE; + + /* Session ID (zero since there is no reuse) */ + *(p++) = 0; + + /* Ciphers supported (using SSL 3.0/TLS 1.0 format) */ + i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),ssl3_put_cipher_by_char); + if (i == 0) + { + SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE); + return -1; + } + s2n(i,p); + p+=i; + + /* COMPRESSION */ + if (s->ctx->comp_methods == NULL) + j=0; + else + j=sk_SSL_COMP_num(s->ctx->comp_methods); + *(p++)=1+j; + for (i=0; i<j; i++) + { + comp=sk_SSL_COMP_value(s->ctx->comp_methods,i); + *(p++)=comp->id; + } + *(p++)=0; /* Add the NULL method */ + + l = p-d; + *p = 42; + + /* fill in 4-byte handshake header */ + d=&(buf[5]); + *(d++)=SSL3_MT_CLIENT_HELLO; + l2n3(l,d); + + l += 4; + + if (l > SSL3_RT_MAX_PLAIN_LENGTH) + { + SSLerr(SSL_F_SSL23_CLIENT_HELLO,ERR_R_INTERNAL_ERROR); + return -1; + } + + /* fill in 5-byte record header */ + d=buf; + *(d++) = SSL3_RT_HANDSHAKE; + *(d++) = version_major; + *(d++) = version_minor; /* arguably we should send the *lowest* suported version here + * (indicating, e.g., TLS 1.0 in "SSL 3.0 format") */ + s2n((int)l,d); + + /* number of bytes to write */ + s->init_num=p-buf; + s->init_off=0; + + ssl3_finish_mac(s,&(buf[5]), s->init_num - 5); + } + + s->state=SSL23_ST_CW_CLNT_HELLO_B; + s->init_off=0; + } + + /* SSL3_ST_CW_CLNT_HELLO_B */ + ret = ssl23_write_bytes(s); + + if ((ret >= 2) && s->msg_callback) + { + /* Client Hello has been sent; tell msg_callback */ + + if (ssl2_compat) + s->msg_callback(1, SSL2_VERSION, 0, s->init_buf->data+2, ret-2, s, s->msg_callback_arg); + else + s->msg_callback(1, version, SSL3_RT_HANDSHAKE, s->init_buf->data+5, ret-5, s, s->msg_callback_arg); + } + + return ret; + } + +static int ssl23_get_server_hello(SSL *s) + { + char buf[8]; + unsigned char *p; + int i; + int n; + + n=ssl23_read_bytes(s,7); + + if (n != 7) return(n); + p=s->packet; + + memcpy(buf,p,n); + + if ((p[0] & 0x80) && (p[2] == SSL2_MT_SERVER_HELLO) && + (p[5] == 0x00) && (p[6] == 0x02)) + { +#ifdef OPENSSL_NO_SSL2 + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL); + goto err; +#else + /* we are talking sslv2 */ + /* we need to clean up the SSLv3 setup and put in the + * sslv2 stuff. */ + int ch_len; + + if (s->options & SSL_OP_NO_SSLv2) + { + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL); + goto err; + } + if (s->s2 == NULL) + { + if (!ssl2_new(s)) + goto err; + } + else + ssl2_clear(s); + + if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG) + ch_len=SSL2_CHALLENGE_LENGTH; + else + ch_len=SSL2_MAX_CHALLENGE_LENGTH; + + /* write out sslv2 challenge */ + i=(SSL3_RANDOM_SIZE < ch_len) + ?SSL3_RANDOM_SIZE:ch_len; + s->s2->challenge_length=i; + memcpy(s->s2->challenge, + &(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i); + + if (s->s3 != NULL) ssl3_free(s); + + if (!BUF_MEM_grow_clean(s->init_buf, + SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) + { + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,ERR_R_BUF_LIB); + goto err; + } + + s->state=SSL2_ST_GET_SERVER_HELLO_A; + if (!(s->client_version == SSL2_VERSION)) + /* use special padding (SSL 3.0 draft/RFC 2246, App. E.2) */ + s->s2->ssl2_rollback=1; + + /* setup the 5 bytes we have read so we get them from + * the sslv2 buffer */ + s->rstate=SSL_ST_READ_HEADER; + s->packet_length=n; + s->packet= &(s->s2->rbuf[0]); + memcpy(s->packet,buf,n); + s->s2->rbuf_left=n; + s->s2->rbuf_offs=0; + + /* we have already written one */ + s->s2->write_sequence=1; + + s->method=SSLv2_client_method(); + s->handshake_func=s->method->ssl_connect; +#endif + } + else if ((p[0] == SSL3_RT_HANDSHAKE) && + (p[1] == SSL3_VERSION_MAJOR) && + ((p[2] == SSL3_VERSION_MINOR) || + (p[2] == TLS1_VERSION_MINOR)) && + (p[5] == SSL3_MT_SERVER_HELLO)) + { + /* we have sslv3 or tls1 */ + + if (!ssl_init_wbio_buffer(s,1)) goto err; + + /* we are in this state */ + s->state=SSL3_ST_CR_SRVR_HELLO_A; + + /* put the 5 bytes we have read into the input buffer + * for SSLv3 */ + s->rstate=SSL_ST_READ_HEADER; + s->packet_length=n; + s->packet= &(s->s3->rbuf.buf[0]); + memcpy(s->packet,buf,n); + s->s3->rbuf.left=n; + s->s3->rbuf.offset=0; + + if ((p[2] == SSL3_VERSION_MINOR) && + !(s->options & SSL_OP_NO_SSLv3)) + { + s->version=SSL3_VERSION; + s->method=SSLv3_client_method(); + } + else if ((p[2] == TLS1_VERSION_MINOR) && + !(s->options & SSL_OP_NO_TLSv1)) + { + s->version=TLS1_VERSION; + s->method=TLSv1_client_method(); + } + else + { + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL); + goto err; + } + + s->handshake_func=s->method->ssl_connect; + } + else if ((p[0] == SSL3_RT_ALERT) && + (p[1] == SSL3_VERSION_MAJOR) && + ((p[2] == SSL3_VERSION_MINOR) || + (p[2] == TLS1_VERSION_MINOR)) && + (p[3] == 0) && + (p[4] == 2)) + { + void (*cb)(const SSL *ssl,int type,int val)=NULL; + int j; + + /* An alert */ + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + i=p[5]; + if (cb != NULL) + { + j=(i<<8)|p[6]; + cb(s,SSL_CB_READ_ALERT,j); + } + + s->rwstate=SSL_NOTHING; + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_AD_REASON_OFFSET+p[6]); + goto err; + } + else + { + SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNKNOWN_PROTOCOL); + goto err; + } + s->init_num=0; + + /* Since, if we are sending a ssl23 client hello, we are not + * reusing a session-id */ + if (!ssl_get_new_session(s,0)) + goto err; + + return(SSL_connect(s)); +err: + return(-1); + } + diff --git a/ssl/s23_lib.c b/ssl/s23_lib.c new file mode 100644 index 000000000000..fc2981308d55 --- /dev/null +++ b/ssl/s23_lib.c @@ -0,0 +1,198 @@ +/* ssl/s23_lib.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <openssl/objects.h> +#include "ssl_locl.h" + +long ssl23_default_timeout(void) + { + return(300); + } + +IMPLEMENT_ssl23_meth_func(sslv23_base_method, + ssl_undefined_function, + ssl_undefined_function, + ssl_bad_method) + +int ssl23_num_ciphers(void) + { + return(ssl3_num_ciphers() +#ifndef OPENSSL_NO_SSL2 + + ssl2_num_ciphers() +#endif + ); + } + +SSL_CIPHER *ssl23_get_cipher(unsigned int u) + { + unsigned int uu=ssl3_num_ciphers(); + + if (u < uu) + return(ssl3_get_cipher(u)); + else +#ifndef OPENSSL_NO_SSL2 + return(ssl2_get_cipher(u-uu)); +#else + return(NULL); +#endif + } + +/* This function needs to check if the ciphers required are actually + * available */ +SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p) + { + SSL_CIPHER c,*cp; + unsigned long id; + int n; + + n=ssl3_num_ciphers(); + id=0x03000000|((unsigned long)p[0]<<16L)| + ((unsigned long)p[1]<<8L)|(unsigned long)p[2]; + c.id=id; + cp=ssl3_get_cipher_by_char(p); +#ifndef OPENSSL_NO_SSL2 + if (cp == NULL) + cp=ssl2_get_cipher_by_char(p); +#endif + return(cp); + } + +int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p) + { + long l; + + /* We can write SSLv2 and SSLv3 ciphers */ + if (p != NULL) + { + l=c->id; + p[0]=((unsigned char)(l>>16L))&0xFF; + p[1]=((unsigned char)(l>> 8L))&0xFF; + p[2]=((unsigned char)(l ))&0xFF; + } + return(3); + } + +int ssl23_read(SSL *s, void *buf, int len) + { + int n; + + clear_sys_error(); + if (SSL_in_init(s) && (!s->in_handshake)) + { + n=s->handshake_func(s); + if (n < 0) return(n); + if (n == 0) + { + SSLerr(SSL_F_SSL23_READ,SSL_R_SSL_HANDSHAKE_FAILURE); + return(-1); + } + return(SSL_read(s,buf,len)); + } + else + { + ssl_undefined_function(s); + return(-1); + } + } + +int ssl23_peek(SSL *s, void *buf, int len) + { + int n; + + clear_sys_error(); + if (SSL_in_init(s) && (!s->in_handshake)) + { + n=s->handshake_func(s); + if (n < 0) return(n); + if (n == 0) + { + SSLerr(SSL_F_SSL23_PEEK,SSL_R_SSL_HANDSHAKE_FAILURE); + return(-1); + } + return(SSL_peek(s,buf,len)); + } + else + { + ssl_undefined_function(s); + return(-1); + } + } + +int ssl23_write(SSL *s, const void *buf, int len) + { + int n; + + clear_sys_error(); + if (SSL_in_init(s) && (!s->in_handshake)) + { + n=s->handshake_func(s); + if (n < 0) return(n); + if (n == 0) + { + SSLerr(SSL_F_SSL23_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE); + return(-1); + } + return(SSL_write(s,buf,len)); + } + else + { + ssl_undefined_function(s); + return(-1); + } + } diff --git a/ssl/s23_meth.c b/ssl/s23_meth.c new file mode 100644 index 000000000000..950d9aab3d9e --- /dev/null +++ b/ssl/s23_meth.c @@ -0,0 +1,88 @@ +/* ssl/s23_meth.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <openssl/objects.h> +#include "ssl_locl.h" + +static SSL_METHOD *ssl23_get_method(int ver); +static SSL_METHOD *ssl23_get_method(int ver) + { +#ifndef OPENSSL_NO_SSL2 + if (ver == SSL2_VERSION) + return(SSLv2_method()); + else +#endif +#ifndef OPENSSL_NO_SSL3 + if (ver == SSL3_VERSION) + return(SSLv3_method()); + else +#endif +#ifndef OPENSSL_NO_TLS1 + if (ver == TLS1_VERSION) + return(TLSv1_method()); + else +#endif + return(NULL); + } + +IMPLEMENT_ssl23_meth_func(SSLv23_method, + ssl23_accept, + ssl23_connect, + ssl23_get_method) + diff --git a/ssl/s23_pkt.c b/ssl/s23_pkt.c new file mode 100644 index 000000000000..4ca6a1b25845 --- /dev/null +++ b/ssl/s23_pkt.c @@ -0,0 +1,117 @@ +/* ssl/s23_pkt.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <errno.h> +#define USE_SOCKETS +#include "ssl_locl.h" +#include <openssl/evp.h> +#include <openssl/buffer.h> + +int ssl23_write_bytes(SSL *s) + { + int i,num,tot; + char *buf; + + buf=s->init_buf->data; + tot=s->init_off; + num=s->init_num; + for (;;) + { + s->rwstate=SSL_WRITING; + i=BIO_write(s->wbio,&(buf[tot]),num); + if (i <= 0) + { + s->init_off=tot; + s->init_num=num; + return(i); + } + s->rwstate=SSL_NOTHING; + if (i == num) return(tot+i); + + num-=i; + tot+=i; + } + } + +/* return regularly only when we have read (at least) 'n' bytes */ +int ssl23_read_bytes(SSL *s, int n) + { + unsigned char *p; + int j; + + if (s->packet_length < (unsigned int)n) + { + p=s->packet; + + for (;;) + { + s->rwstate=SSL_READING; + j=BIO_read(s->rbio,(char *)&(p[s->packet_length]), + n-s->packet_length); + if (j <= 0) + return(j); + s->rwstate=SSL_NOTHING; + s->packet_length+=j; + if (s->packet_length >= (unsigned int)n) + return(s->packet_length); + } + } + return(n); + } + diff --git a/ssl/s23_srvr.c b/ssl/s23_srvr.c new file mode 100644 index 000000000000..6637bb954906 --- /dev/null +++ b/ssl/s23_srvr.c @@ -0,0 +1,572 @@ +/* ssl/s23_srvr.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include "ssl_locl.h" +#include <openssl/buffer.h> +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/evp.h> + +static SSL_METHOD *ssl23_get_server_method(int ver); +int ssl23_get_client_hello(SSL *s); +static SSL_METHOD *ssl23_get_server_method(int ver) + { +#ifndef OPENSSL_NO_SSL2 + if (ver == SSL2_VERSION) + return(SSLv2_server_method()); +#endif + if (ver == SSL3_VERSION) + return(SSLv3_server_method()); + else if (ver == TLS1_VERSION) + return(TLSv1_server_method()); + else + return(NULL); + } + +IMPLEMENT_ssl23_meth_func(SSLv23_server_method, + ssl23_accept, + ssl_undefined_function, + ssl23_get_server_method) + +int ssl23_accept(SSL *s) + { + BUF_MEM *buf; + unsigned long Time=(unsigned long)time(NULL); + void (*cb)(const SSL *ssl,int type,int val)=NULL; + int ret= -1; + int new_state,state; + + RAND_add(&Time,sizeof(Time),0); + ERR_clear_error(); + clear_sys_error(); + + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); + + for (;;) + { + state=s->state; + + switch(s->state) + { + case SSL_ST_BEFORE: + case SSL_ST_ACCEPT: + case SSL_ST_BEFORE|SSL_ST_ACCEPT: + case SSL_ST_OK|SSL_ST_ACCEPT: + + s->server=1; + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); + + /* s->version=SSL3_VERSION; */ + s->type=SSL_ST_ACCEPT; + + if (s->init_buf == NULL) + { + if ((buf=BUF_MEM_new()) == NULL) + { + ret= -1; + goto end; + } + if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH)) + { + ret= -1; + goto end; + } + s->init_buf=buf; + } + + ssl3_init_finished_mac(s); + + s->state=SSL23_ST_SR_CLNT_HELLO_A; + s->ctx->stats.sess_accept++; + s->init_num=0; + break; + + case SSL23_ST_SR_CLNT_HELLO_A: + case SSL23_ST_SR_CLNT_HELLO_B: + + s->shutdown=0; + ret=ssl23_get_client_hello(s); + if (ret >= 0) cb=NULL; + goto end; + /* break; */ + + default: + SSLerr(SSL_F_SSL23_ACCEPT,SSL_R_UNKNOWN_STATE); + ret= -1; + goto end; + /* break; */ + } + + if ((cb != NULL) && (s->state != state)) + { + new_state=s->state; + s->state=state; + cb(s,SSL_CB_ACCEPT_LOOP,1); + s->state=new_state; + } + } +end: + s->in_handshake--; + if (cb != NULL) + cb(s,SSL_CB_ACCEPT_EXIT,ret); + return(ret); + } + + +int ssl23_get_client_hello(SSL *s) + { + char buf_space[11]; /* Request this many bytes in initial read. + * We can detect SSL 3.0/TLS 1.0 Client Hellos + * ('type == 3') correctly only when the following + * is in a single record, which is not guaranteed by + * the protocol specification: + * Byte Content + * 0 type \ + * 1/2 version > record header + * 3/4 length / + * 5 msg_type \ + * 6-8 length > Client Hello message + * 9/10 client_version / + */ + char *buf= &(buf_space[0]); + unsigned char *p,*d,*d_len,*dd; + unsigned int i; + unsigned int csl,sil,cl; + int n=0,j; + int type=0; + int v[2]; + + if (s->state == SSL23_ST_SR_CLNT_HELLO_A) + { + /* read the initial header */ + v[0]=v[1]=0; + + if (!ssl3_setup_buffers(s)) goto err; + + n=ssl23_read_bytes(s, sizeof buf_space); + if (n != sizeof buf_space) return(n); /* n == -1 || n == 0 */ + + p=s->packet; + + memcpy(buf,p,n); + + if ((p[0] & 0x80) && (p[2] == SSL2_MT_CLIENT_HELLO)) + { + /* + * SSLv2 header + */ + if ((p[3] == 0x00) && (p[4] == 0x02)) + { + v[0]=p[3]; v[1]=p[4]; + /* SSLv2 */ + if (!(s->options & SSL_OP_NO_SSLv2)) + type=1; + } + else if (p[3] == SSL3_VERSION_MAJOR) + { + v[0]=p[3]; v[1]=p[4]; + /* SSLv3/TLSv1 */ + if (p[4] >= TLS1_VERSION_MINOR) + { + if (!(s->options & SSL_OP_NO_TLSv1)) + { + s->version=TLS1_VERSION; + /* type=2; */ /* done later to survive restarts */ + s->state=SSL23_ST_SR_CLNT_HELLO_B; + } + else if (!(s->options & SSL_OP_NO_SSLv3)) + { + s->version=SSL3_VERSION; + /* type=2; */ + s->state=SSL23_ST_SR_CLNT_HELLO_B; + } + else if (!(s->options & SSL_OP_NO_SSLv2)) + { + type=1; + } + } + else if (!(s->options & SSL_OP_NO_SSLv3)) + { + s->version=SSL3_VERSION; + /* type=2; */ + s->state=SSL23_ST_SR_CLNT_HELLO_B; + } + else if (!(s->options & SSL_OP_NO_SSLv2)) + type=1; + + } + } + else if ((p[0] == SSL3_RT_HANDSHAKE) && + (p[1] == SSL3_VERSION_MAJOR) && + (p[5] == SSL3_MT_CLIENT_HELLO) && + ((p[3] == 0 && p[4] < 5 /* silly record length? */) + || (p[9] == p[1]))) + { + /* + * SSLv3 or tls1 header + */ + + v[0]=p[1]; /* major version (= SSL3_VERSION_MAJOR) */ + /* We must look at client_version inside the Client Hello message + * to get the correct minor version. + * However if we have only a pathologically small fragment of the + * Client Hello message, this would be difficult, and we'd have + * to read more records to find out. + * No known SSL 3.0 client fragments ClientHello like this, + * so we simply assume TLS 1.0 to avoid protocol version downgrade + * attacks. */ + if (p[3] == 0 && p[4] < 6) + { +#if 0 + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_RECORD_TOO_SMALL); + goto err; +#else + v[1] = TLS1_VERSION_MINOR; +#endif + } + else + v[1]=p[10]; /* minor version according to client_version */ + if (v[1] >= TLS1_VERSION_MINOR) + { + if (!(s->options & SSL_OP_NO_TLSv1)) + { + s->version=TLS1_VERSION; + type=3; + } + else if (!(s->options & SSL_OP_NO_SSLv3)) + { + s->version=SSL3_VERSION; + type=3; + } + } + else + { + /* client requests SSL 3.0 */ + if (!(s->options & SSL_OP_NO_SSLv3)) + { + s->version=SSL3_VERSION; + type=3; + } + else if (!(s->options & SSL_OP_NO_TLSv1)) + { + /* we won't be able to use TLS of course, + * but this will send an appropriate alert */ + s->version=TLS1_VERSION; + type=3; + } + } + } + else if ((strncmp("GET ", (char *)p,4) == 0) || + (strncmp("POST ",(char *)p,5) == 0) || + (strncmp("HEAD ",(char *)p,5) == 0) || + (strncmp("PUT ", (char *)p,4) == 0)) + { + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_HTTP_REQUEST); + goto err; + } + else if (strncmp("CONNECT",(char *)p,7) == 0) + { + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_HTTPS_PROXY_REQUEST); + goto err; + } + } + + if (s->state == SSL23_ST_SR_CLNT_HELLO_B) + { + /* we have SSLv3/TLSv1 in an SSLv2 header + * (other cases skip this state) */ + + type=2; + p=s->packet; + v[0] = p[3]; /* == SSL3_VERSION_MAJOR */ + v[1] = p[4]; + + n=((p[0]&0x7f)<<8)|p[1]; + if (n > (1024*4)) + { + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_RECORD_TOO_LARGE); + goto err; + } + + j=ssl23_read_bytes(s,n+2); + if (j <= 0) return(j); + + ssl3_finish_mac(s, s->packet+2, s->packet_length-2); + if (s->msg_callback) + s->msg_callback(0, SSL2_VERSION, 0, s->packet+2, s->packet_length-2, s, s->msg_callback_arg); /* CLIENT-HELLO */ + + p=s->packet; + p+=5; + n2s(p,csl); + n2s(p,sil); + n2s(p,cl); + d=(unsigned char *)s->init_buf->data; + if ((csl+sil+cl+11) != s->packet_length) + { + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_RECORD_LENGTH_MISMATCH); + goto err; + } + + /* record header: msg_type ... */ + *(d++) = SSL3_MT_CLIENT_HELLO; + /* ... and length (actual value will be written later) */ + d_len = d; + d += 3; + + /* client_version */ + *(d++) = SSL3_VERSION_MAJOR; /* == v[0] */ + *(d++) = v[1]; + + /* lets populate the random area */ + /* get the challenge_length */ + i=(cl > SSL3_RANDOM_SIZE)?SSL3_RANDOM_SIZE:cl; + memset(d,0,SSL3_RANDOM_SIZE); + memcpy(&(d[SSL3_RANDOM_SIZE-i]),&(p[csl+sil]),i); + d+=SSL3_RANDOM_SIZE; + + /* no session-id reuse */ + *(d++)=0; + + /* ciphers */ + j=0; + dd=d; + d+=2; + for (i=0; i<csl; i+=3) + { + if (p[i] != 0) continue; + *(d++)=p[i+1]; + *(d++)=p[i+2]; + j+=2; + } + s2n(j,dd); + + /* COMPRESSION */ + *(d++)=1; + *(d++)=0; + + i = (d-(unsigned char *)s->init_buf->data) - 4; + l2n3((long)i, d_len); + + /* get the data reused from the init_buf */ + s->s3->tmp.reuse_message=1; + s->s3->tmp.message_type=SSL3_MT_CLIENT_HELLO; + s->s3->tmp.message_size=i; + } + + /* imaginary new state (for program structure): */ + /* s->state = SSL23_SR_CLNT_HELLO_C */ + + if (type == 1) + { +#ifdef OPENSSL_NO_SSL2 + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_UNSUPPORTED_PROTOCOL); + goto err; +#else + /* we are talking sslv2 */ + /* we need to clean up the SSLv3/TLSv1 setup and put in the + * sslv2 stuff. */ + + if (s->s2 == NULL) + { + if (!ssl2_new(s)) + goto err; + } + else + ssl2_clear(s); + + if (s->s3 != NULL) ssl3_free(s); + + if (!BUF_MEM_grow_clean(s->init_buf, + SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) + { + goto err; + } + + s->state=SSL2_ST_GET_CLIENT_HELLO_A; + if (s->options & SSL_OP_NO_TLSv1 && s->options & SSL_OP_NO_SSLv3) + s->s2->ssl2_rollback=0; + else + /* reject SSL 2.0 session if client supports SSL 3.0 or TLS 1.0 + * (SSL 3.0 draft/RFC 2246, App. E.2) */ + s->s2->ssl2_rollback=1; + + /* setup the n bytes we have read so we get them from + * the sslv2 buffer */ + s->rstate=SSL_ST_READ_HEADER; + s->packet_length=n; + s->packet= &(s->s2->rbuf[0]); + memcpy(s->packet,buf,n); + s->s2->rbuf_left=n; + s->s2->rbuf_offs=0; + + s->method=SSLv2_server_method(); + s->handshake_func=s->method->ssl_accept; +#endif + } + + if ((type == 2) || (type == 3)) + { + /* we have SSLv3/TLSv1 (type 2: SSL2 style, type 3: SSL3/TLS style) */ + + if (!ssl_init_wbio_buffer(s,1)) goto err; + + /* we are in this state */ + s->state=SSL3_ST_SR_CLNT_HELLO_A; + + if (type == 3) + { + /* put the 'n' bytes we have read into the input buffer + * for SSLv3 */ + s->rstate=SSL_ST_READ_HEADER; + s->packet_length=n; + s->packet= &(s->s3->rbuf.buf[0]); + memcpy(s->packet,buf,n); + s->s3->rbuf.left=n; + s->s3->rbuf.offset=0; + } + else + { + s->packet_length=0; + s->s3->rbuf.left=0; + s->s3->rbuf.offset=0; + } + + if (s->version == TLS1_VERSION) + s->method = TLSv1_server_method(); + else + s->method = SSLv3_server_method(); +#if 0 /* ssl3_get_client_hello does this */ + s->client_version=(v[0]<<8)|v[1]; +#endif + s->handshake_func=s->method->ssl_accept; + } + + if ((type < 1) || (type > 3)) + { + /* bad, very bad */ + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_UNKNOWN_PROTOCOL); + goto err; + } + s->init_num=0; + + if (buf != buf_space) OPENSSL_free(buf); + return(SSL_accept(s)); +err: + if (buf != buf_space) OPENSSL_free(buf); + return(-1); + } diff --git a/ssl/s2_clnt.c b/ssl/s2_clnt.c new file mode 100644 index 000000000000..ce60de630a7a --- /dev/null +++ b/ssl/s2_clnt.c @@ -0,0 +1,1123 @@ +/* ssl/s2_clnt.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "ssl_locl.h" +#ifndef OPENSSL_NO_SSL2 +#include <stdio.h> +#include <openssl/rand.h> +#include <openssl/buffer.h> +#include <openssl/objects.h> +#include <openssl/evp.h> + +static SSL_METHOD *ssl2_get_client_method(int ver); +static int get_server_finished(SSL *s); +static int get_server_verify(SSL *s); +static int get_server_hello(SSL *s); +static int client_hello(SSL *s); +static int client_master_key(SSL *s); +static int client_finished(SSL *s); +static int client_certificate(SSL *s); +static int ssl_rsa_public_encrypt(SESS_CERT *sc, int len, unsigned char *from, + unsigned char *to,int padding); +#define BREAK break + +static SSL_METHOD *ssl2_get_client_method(int ver) + { + if (ver == SSL2_VERSION) + return(SSLv2_client_method()); + else + return(NULL); + } + +IMPLEMENT_ssl2_meth_func(SSLv2_client_method, + ssl_undefined_function, + ssl2_connect, + ssl2_get_client_method) + +int ssl2_connect(SSL *s) + { + unsigned long l=(unsigned long)time(NULL); + BUF_MEM *buf=NULL; + int ret= -1; + void (*cb)(const SSL *ssl,int type,int val)=NULL; + int new_state,state; + + RAND_add(&l,sizeof(l),0); + ERR_clear_error(); + clear_sys_error(); + + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + /* init things to blank */ + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); + + for (;;) + { + state=s->state; + + switch (s->state) + { + case SSL_ST_BEFORE: + case SSL_ST_CONNECT: + case SSL_ST_BEFORE|SSL_ST_CONNECT: + case SSL_ST_OK|SSL_ST_CONNECT: + + s->server=0; + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); + + s->version=SSL2_VERSION; + s->type=SSL_ST_CONNECT; + + buf=s->init_buf; + if ((buf == NULL) && ((buf=BUF_MEM_new()) == NULL)) + { + ret= -1; + goto end; + } + if (!BUF_MEM_grow(buf, + SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) + { + if (buf == s->init_buf) + buf=NULL; + ret= -1; + goto end; + } + s->init_buf=buf; + buf=NULL; + s->init_num=0; + s->state=SSL2_ST_SEND_CLIENT_HELLO_A; + s->ctx->stats.sess_connect++; + s->handshake_func=ssl2_connect; + BREAK; + + case SSL2_ST_SEND_CLIENT_HELLO_A: + case SSL2_ST_SEND_CLIENT_HELLO_B: + s->shutdown=0; + ret=client_hello(s); + if (ret <= 0) goto end; + s->init_num=0; + s->state=SSL2_ST_GET_SERVER_HELLO_A; + BREAK; + + case SSL2_ST_GET_SERVER_HELLO_A: + case SSL2_ST_GET_SERVER_HELLO_B: + ret=get_server_hello(s); + if (ret <= 0) goto end; + s->init_num=0; + if (!s->hit) /* new session */ + { + s->state=SSL2_ST_SEND_CLIENT_MASTER_KEY_A; + BREAK; + } + else + { + s->state=SSL2_ST_CLIENT_START_ENCRYPTION; + break; + } + + case SSL2_ST_SEND_CLIENT_MASTER_KEY_A: + case SSL2_ST_SEND_CLIENT_MASTER_KEY_B: + ret=client_master_key(s); + if (ret <= 0) goto end; + s->init_num=0; + s->state=SSL2_ST_CLIENT_START_ENCRYPTION; + break; + + case SSL2_ST_CLIENT_START_ENCRYPTION: + /* Ok, we now have all the stuff needed to + * start encrypting, so lets fire it up :-) */ + if (!ssl2_enc_init(s,1)) + { + ret= -1; + goto end; + } + s->s2->clear_text=0; + s->state=SSL2_ST_SEND_CLIENT_FINISHED_A; + break; + + case SSL2_ST_SEND_CLIENT_FINISHED_A: + case SSL2_ST_SEND_CLIENT_FINISHED_B: + ret=client_finished(s); + if (ret <= 0) goto end; + s->init_num=0; + s->state=SSL2_ST_GET_SERVER_VERIFY_A; + break; + + case SSL2_ST_GET_SERVER_VERIFY_A: + case SSL2_ST_GET_SERVER_VERIFY_B: + ret=get_server_verify(s); + if (ret <= 0) goto end; + s->init_num=0; + s->state=SSL2_ST_GET_SERVER_FINISHED_A; + break; + + case SSL2_ST_GET_SERVER_FINISHED_A: + case SSL2_ST_GET_SERVER_FINISHED_B: + ret=get_server_finished(s); + if (ret <= 0) goto end; + break; + + case SSL2_ST_SEND_CLIENT_CERTIFICATE_A: + case SSL2_ST_SEND_CLIENT_CERTIFICATE_B: + case SSL2_ST_SEND_CLIENT_CERTIFICATE_C: + case SSL2_ST_SEND_CLIENT_CERTIFICATE_D: + case SSL2_ST_X509_GET_CLIENT_CERTIFICATE: + ret=client_certificate(s); + if (ret <= 0) goto end; + s->init_num=0; + s->state=SSL2_ST_GET_SERVER_FINISHED_A; + break; + + case SSL_ST_OK: + if (s->init_buf != NULL) + { + BUF_MEM_free(s->init_buf); + s->init_buf=NULL; + } + s->init_num=0; + /* ERR_clear_error();*/ + + /* If we want to cache session-ids in the client + * and we successfully add the session-id to the + * cache, and there is a callback, then pass it out. + * 26/11/96 - eay - only add if not a re-used session. + */ + + ssl_update_cache(s,SSL_SESS_CACHE_CLIENT); + if (s->hit) s->ctx->stats.sess_hit++; + + ret=1; + /* s->server=0; */ + s->ctx->stats.sess_connect_good++; + + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1); + + goto end; + /* break; */ + default: + SSLerr(SSL_F_SSL2_CONNECT,SSL_R_UNKNOWN_STATE); + return(-1); + /* break; */ + } + + if ((cb != NULL) && (s->state != state)) + { + new_state=s->state; + s->state=state; + cb(s,SSL_CB_CONNECT_LOOP,1); + s->state=new_state; + } + } +end: + s->in_handshake--; + if (buf != NULL) + BUF_MEM_free(buf); + if (cb != NULL) + cb(s,SSL_CB_CONNECT_EXIT,ret); + return(ret); + } + +static int get_server_hello(SSL *s) + { + unsigned char *buf; + unsigned char *p; + int i,j; + unsigned long len; + STACK_OF(SSL_CIPHER) *sk=NULL,*cl, *prio, *allow; + + buf=(unsigned char *)s->init_buf->data; + p=buf; + if (s->state == SSL2_ST_GET_SERVER_HELLO_A) + { + i=ssl2_read(s,(char *)&(buf[s->init_num]),11-s->init_num); + if (i < (11-s->init_num)) + return(ssl2_part_read(s,SSL_F_GET_SERVER_HELLO,i)); + s->init_num = 11; + + if (*(p++) != SSL2_MT_SERVER_HELLO) + { + if (p[-1] != SSL2_MT_ERROR) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_SERVER_HELLO, + SSL_R_READ_WRONG_PACKET_TYPE); + } + else + SSLerr(SSL_F_GET_SERVER_HELLO, + SSL_R_PEER_ERROR); + return(-1); + } +#ifdef __APPLE_CC__ + /* The Rhapsody 5.5 (a.k.a. MacOS X) compiler bug + * workaround. <appro@fy.chalmers.se> */ + s->hit=(i=*(p++))?1:0; +#else + s->hit=(*(p++))?1:0; +#endif + s->s2->tmp.cert_type= *(p++); + n2s(p,i); + if (i < s->version) s->version=i; + n2s(p,i); s->s2->tmp.cert_length=i; + n2s(p,i); s->s2->tmp.csl=i; + n2s(p,i); s->s2->tmp.conn_id_length=i; + s->state=SSL2_ST_GET_SERVER_HELLO_B; + } + + /* SSL2_ST_GET_SERVER_HELLO_B */ + len = 11 + (unsigned long)s->s2->tmp.cert_length + (unsigned long)s->s2->tmp.csl + (unsigned long)s->s2->tmp.conn_id_length; + if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) + { + SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_MESSAGE_TOO_LONG); + return -1; + } + j = (int)len - s->init_num; + i = ssl2_read(s,(char *)&(buf[s->init_num]),j); + if (i != j) return(ssl2_part_read(s,SSL_F_GET_SERVER_HELLO,i)); + if (s->msg_callback) + s->msg_callback(0, s->version, 0, buf, (size_t)len, s, s->msg_callback_arg); /* SERVER-HELLO */ + + /* things are looking good */ + + p = buf + 11; + if (s->hit) + { + if (s->s2->tmp.cert_length != 0) + { + SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CERT_LENGTH_NOT_ZERO); + return(-1); + } + if (s->s2->tmp.cert_type != 0) + { + if (!(s->options & + SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG)) + { + SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CERT_TYPE_NOT_ZERO); + return(-1); + } + } + if (s->s2->tmp.csl != 0) + { + SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CIPHER_LIST_NOT_ZERO); + return(-1); + } + } + else + { +#ifdef undef + /* very bad */ + memset(s->session->session_id,0, + SSL_MAX_SSL_SESSION_ID_LENGTH_IN_BYTES); + s->session->session_id_length=0; + */ +#endif + + /* we need to do this in case we were trying to reuse a + * client session but others are already reusing it. + * If this was a new 'blank' session ID, the session-id + * length will still be 0 */ + if (s->session->session_id_length > 0) + { + if (!ssl_get_new_session(s,0)) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + return(-1); + } + } + + if (ssl2_set_certificate(s,s->s2->tmp.cert_type, + s->s2->tmp.cert_length,p) <= 0) + { + ssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE); + return(-1); + } + p+=s->s2->tmp.cert_length; + + if (s->s2->tmp.csl == 0) + { + ssl2_return_error(s,SSL2_PE_NO_CIPHER); + SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_NO_CIPHER_LIST); + return(-1); + } + + /* We have just received a list of ciphers back from the + * server. We need to get the ones that match, then select + * the one we want the most :-). */ + + /* load the ciphers */ + sk=ssl_bytes_to_cipher_list(s,p,s->s2->tmp.csl, + &s->session->ciphers); + p+=s->s2->tmp.csl; + if (sk == NULL) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_SERVER_HELLO,ERR_R_MALLOC_FAILURE); + return(-1); + } + + sk_SSL_CIPHER_set_cmp_func(sk,ssl_cipher_ptr_id_cmp); + + /* get the array of ciphers we will accept */ + cl=SSL_get_ciphers(s); + sk_SSL_CIPHER_set_cmp_func(cl,ssl_cipher_ptr_id_cmp); + + /* + * If server preference flag set, choose the first + * (highest priority) cipher the server sends, otherwise + * client preference has priority. + */ + if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) + { + prio = sk; + allow = cl; + } + else + { + prio = cl; + allow = sk; + } + /* In theory we could have ciphers sent back that we + * don't want to use but that does not matter since we + * will check against the list we originally sent and + * for performance reasons we should not bother to match + * the two lists up just to check. */ + for (i=0; i<sk_SSL_CIPHER_num(prio); i++) + { + if (sk_SSL_CIPHER_find(allow, + sk_SSL_CIPHER_value(prio,i)) >= 0) + break; + } + + if (i >= sk_SSL_CIPHER_num(prio)) + { + ssl2_return_error(s,SSL2_PE_NO_CIPHER); + SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_NO_CIPHER_MATCH); + return(-1); + } + s->session->cipher=sk_SSL_CIPHER_value(prio,i); + + + if (s->session->peer != NULL) /* can't happen*/ + { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR); + return(-1); + } + + s->session->peer = s->session->sess_cert->peer_key->x509; + /* peer_key->x509 has been set by ssl2_set_certificate. */ + CRYPTO_add(&s->session->peer->references, 1, CRYPTO_LOCK_X509); + } + + if (s->session->sess_cert == NULL + || s->session->peer != s->session->sess_cert->peer_key->x509) + /* can't happen */ + { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR); + return(-1); + } + + s->s2->conn_id_length=s->s2->tmp.conn_id_length; + if (s->s2->conn_id_length > sizeof s->s2->conn_id) + { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_SSL2_CONNECTION_ID_TOO_LONG); + return -1; + } + memcpy(s->s2->conn_id,p,s->s2->tmp.conn_id_length); + return(1); + } + +static int client_hello(SSL *s) + { + unsigned char *buf; + unsigned char *p,*d; +/* CIPHER **cipher;*/ + int i,n,j; + + buf=(unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_SEND_CLIENT_HELLO_A) + { + if ((s->session == NULL) || + (s->session->ssl_version != s->version)) + { + if (!ssl_get_new_session(s,0)) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + return(-1); + } + } + /* else use the pre-loaded session */ + + p=buf; /* header */ + d=p+9; /* data section */ + *(p++)=SSL2_MT_CLIENT_HELLO; /* type */ + s2n(SSL2_VERSION,p); /* version */ + n=j=0; + + n=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),d,0); + d+=n; + + if (n == 0) + { + SSLerr(SSL_F_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE); + return(-1); + } + + s2n(n,p); /* cipher spec num bytes */ + + if ((s->session->session_id_length > 0) && + (s->session->session_id_length <= + SSL2_MAX_SSL_SESSION_ID_LENGTH)) + { + i=s->session->session_id_length; + s2n(i,p); /* session id length */ + memcpy(d,s->session->session_id,(unsigned int)i); + d+=i; + } + else + { + s2n(0,p); + } + + s->s2->challenge_length=SSL2_CHALLENGE_LENGTH; + s2n(SSL2_CHALLENGE_LENGTH,p); /* challenge length */ + /*challenge id data*/ + if (RAND_pseudo_bytes(s->s2->challenge,SSL2_CHALLENGE_LENGTH) <= 0) + return -1; + memcpy(d,s->s2->challenge,SSL2_CHALLENGE_LENGTH); + d+=SSL2_CHALLENGE_LENGTH; + + s->state=SSL2_ST_SEND_CLIENT_HELLO_B; + s->init_num=d-buf; + s->init_off=0; + } + /* SSL2_ST_SEND_CLIENT_HELLO_B */ + return(ssl2_do_write(s)); + } + +static int client_master_key(SSL *s) + { + unsigned char *buf; + unsigned char *p,*d; + int clear,enc,karg,i; + SSL_SESSION *sess; + const EVP_CIPHER *c; + const EVP_MD *md; + + buf=(unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_SEND_CLIENT_MASTER_KEY_A) + { + + if (!ssl_cipher_get_evp(s->session,&c,&md,NULL)) + { + ssl2_return_error(s,SSL2_PE_NO_CIPHER); + SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS); + return(-1); + } + sess=s->session; + p=buf; + d=p+10; + *(p++)=SSL2_MT_CLIENT_MASTER_KEY;/* type */ + + i=ssl_put_cipher_by_char(s,sess->cipher,p); + p+=i; + + /* make key_arg data */ + i=EVP_CIPHER_iv_length(c); + sess->key_arg_length=i; + if (i > SSL_MAX_KEY_ARG_LENGTH) + { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR); + return -1; + } + if (i > 0) + if (RAND_pseudo_bytes(sess->key_arg,i) <= 0) + return -1; + + /* make a master key */ + i=EVP_CIPHER_key_length(c); + sess->master_key_length=i; + if (i > 0) + { + if (i > (int)sizeof(sess->master_key)) + { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR); + return -1; + } + if (RAND_bytes(sess->master_key,i) <= 0) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + return(-1); + } + } + + if (sess->cipher->algorithm2 & SSL2_CF_8_BYTE_ENC) + enc=8; + else if (SSL_C_IS_EXPORT(sess->cipher)) + enc=5; + else + enc=i; + + if ((int)i < enc) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_CIPHER_TABLE_SRC_ERROR); + return(-1); + } + clear=i-enc; + s2n(clear,p); + memcpy(d,sess->master_key,(unsigned int)clear); + d+=clear; + + enc=ssl_rsa_public_encrypt(sess->sess_cert,enc, + &(sess->master_key[clear]),d, + (s->s2->ssl2_rollback)?RSA_SSLV23_PADDING:RSA_PKCS1_PADDING); + if (enc <= 0) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_PUBLIC_KEY_ENCRYPT_ERROR); + return(-1); + } +#ifdef PKCS1_CHECK + if (s->options & SSL_OP_PKCS1_CHECK_1) d[1]++; + if (s->options & SSL_OP_PKCS1_CHECK_2) + sess->master_key[clear]++; +#endif + s2n(enc,p); + d+=enc; + karg=sess->key_arg_length; + s2n(karg,p); /* key arg size */ + if (karg > (int)sizeof(sess->key_arg)) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR); + return -1; + } + memcpy(d,sess->key_arg,(unsigned int)karg); + d+=karg; + + s->state=SSL2_ST_SEND_CLIENT_MASTER_KEY_B; + s->init_num=d-buf; + s->init_off=0; + } + + /* SSL2_ST_SEND_CLIENT_MASTER_KEY_B */ + return(ssl2_do_write(s)); + } + +static int client_finished(SSL *s) + { + unsigned char *p; + + if (s->state == SSL2_ST_SEND_CLIENT_FINISHED_A) + { + p=(unsigned char *)s->init_buf->data; + *(p++)=SSL2_MT_CLIENT_FINISHED; + if (s->s2->conn_id_length > sizeof s->s2->conn_id) + { + SSLerr(SSL_F_CLIENT_FINISHED, ERR_R_INTERNAL_ERROR); + return -1; + } + memcpy(p,s->s2->conn_id,(unsigned int)s->s2->conn_id_length); + + s->state=SSL2_ST_SEND_CLIENT_FINISHED_B; + s->init_num=s->s2->conn_id_length+1; + s->init_off=0; + } + return(ssl2_do_write(s)); + } + +/* read the data and then respond */ +static int client_certificate(SSL *s) + { + unsigned char *buf; + unsigned char *p,*d; + int i; + unsigned int n; + int cert_ch_len; + unsigned char *cert_ch; + + buf=(unsigned char *)s->init_buf->data; + + /* We have a cert associated with the SSL, so attach it to + * the session if it does not have one */ + + if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_A) + { + i=ssl2_read(s,(char *)&(buf[s->init_num]), + SSL2_MAX_CERT_CHALLENGE_LENGTH+2-s->init_num); + if (i<(SSL2_MIN_CERT_CHALLENGE_LENGTH+2-s->init_num)) + return(ssl2_part_read(s,SSL_F_CLIENT_CERTIFICATE,i)); + s->init_num += i; + if (s->msg_callback) + s->msg_callback(0, s->version, 0, buf, (size_t)s->init_num, s, s->msg_callback_arg); /* REQUEST-CERTIFICATE */ + + /* type=buf[0]; */ + /* type eq x509 */ + if (buf[1] != SSL2_AT_MD5_WITH_RSA_ENCRYPTION) + { + ssl2_return_error(s,SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE); + SSLerr(SSL_F_CLIENT_CERTIFICATE,SSL_R_BAD_AUTHENTICATION_TYPE); + return(-1); + } + + if ((s->cert == NULL) || + (s->cert->key->x509 == NULL) || + (s->cert->key->privatekey == NULL)) + { + s->state=SSL2_ST_X509_GET_CLIENT_CERTIFICATE; + } + else + s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_C; + } + + cert_ch = buf + 2; + cert_ch_len = s->init_num - 2; + + if (s->state == SSL2_ST_X509_GET_CLIENT_CERTIFICATE) + { + X509 *x509=NULL; + EVP_PKEY *pkey=NULL; + + /* If we get an error we need to + * ssl->rwstate=SSL_X509_LOOKUP; + * return(error); + * We should then be retried when things are ok and we + * can get a cert or not */ + + i=0; + if (s->ctx->client_cert_cb != NULL) + { + i=s->ctx->client_cert_cb(s,&(x509),&(pkey)); + } + + if (i < 0) + { + s->rwstate=SSL_X509_LOOKUP; + return(-1); + } + s->rwstate=SSL_NOTHING; + + if ((i == 1) && (pkey != NULL) && (x509 != NULL)) + { + s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_C; + if ( !SSL_use_certificate(s,x509) || + !SSL_use_PrivateKey(s,pkey)) + { + i=0; + } + X509_free(x509); + EVP_PKEY_free(pkey); + } + else if (i == 1) + { + if (x509 != NULL) X509_free(x509); + if (pkey != NULL) EVP_PKEY_free(pkey); + SSLerr(SSL_F_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK); + i=0; + } + + if (i == 0) + { + /* We have no client certificate to respond with + * so send the correct error message back */ + s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_B; + p=buf; + *(p++)=SSL2_MT_ERROR; + s2n(SSL2_PE_NO_CERTIFICATE,p); + s->init_off=0; + s->init_num=3; + /* Write is done at the end */ + } + } + + if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_B) + { + return(ssl2_do_write(s)); + } + + if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_C) + { + EVP_MD_CTX ctx; + + /* ok, now we calculate the checksum + * do it first so we can reuse buf :-) */ + p=buf; + EVP_MD_CTX_init(&ctx); + EVP_SignInit_ex(&ctx,s->ctx->rsa_md5, NULL); + EVP_SignUpdate(&ctx,s->s2->key_material, + s->s2->key_material_length); + EVP_SignUpdate(&ctx,cert_ch,(unsigned int)cert_ch_len); + n=i2d_X509(s->session->sess_cert->peer_key->x509,&p); + EVP_SignUpdate(&ctx,buf,(unsigned int)n); + + p=buf; + d=p+6; + *(p++)=SSL2_MT_CLIENT_CERTIFICATE; + *(p++)=SSL2_CT_X509_CERTIFICATE; + n=i2d_X509(s->cert->key->x509,&d); + s2n(n,p); + + if (!EVP_SignFinal(&ctx,d,&n,s->cert->key->privatekey)) + { + /* this is not good. If things have failed it + * means there so something wrong with the key. + * We will continue with a 0 length signature + */ + } + EVP_MD_CTX_cleanup(&ctx); + s2n(n,p); + d+=n; + + s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_D; + s->init_num=d-buf; + s->init_off=0; + } + /* if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_D) */ + return(ssl2_do_write(s)); + } + +static int get_server_verify(SSL *s) + { + unsigned char *p; + int i, n, len; + + p=(unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_GET_SERVER_VERIFY_A) + { + i=ssl2_read(s,(char *)&(p[s->init_num]),1-s->init_num); + if (i < (1-s->init_num)) + return(ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i)); + s->init_num += i; + + s->state= SSL2_ST_GET_SERVER_VERIFY_B; + if (*p != SSL2_MT_SERVER_VERIFY) + { + if (p[0] != SSL2_MT_ERROR) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_SERVER_VERIFY, + SSL_R_READ_WRONG_PACKET_TYPE); + } + else + { + SSLerr(SSL_F_GET_SERVER_VERIFY,SSL_R_PEER_ERROR); + /* try to read the error message */ + i=ssl2_read(s,(char *)&(p[s->init_num]),3-s->init_num); + return ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i); + } + return(-1); + } + } + + p=(unsigned char *)s->init_buf->data; + len = 1 + s->s2->challenge_length; + n = len - s->init_num; + i = ssl2_read(s,(char *)&(p[s->init_num]),n); + if (i < n) + return(ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i)); + if (s->msg_callback) + s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); /* SERVER-VERIFY */ + p += 1; + + if (memcmp(p,s->s2->challenge,s->s2->challenge_length) != 0) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_SERVER_VERIFY,SSL_R_CHALLENGE_IS_DIFFERENT); + return(-1); + } + return(1); + } + +static int get_server_finished(SSL *s) + { + unsigned char *buf; + unsigned char *p; + int i, n, len; + + buf=(unsigned char *)s->init_buf->data; + p=buf; + if (s->state == SSL2_ST_GET_SERVER_FINISHED_A) + { + i=ssl2_read(s,(char *)&(buf[s->init_num]),1-s->init_num); + if (i < (1-s->init_num)) + return(ssl2_part_read(s,SSL_F_GET_SERVER_FINISHED,i)); + s->init_num += i; + + if (*p == SSL2_MT_REQUEST_CERTIFICATE) + { + s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_A; + return(1); + } + else if (*p != SSL2_MT_SERVER_FINISHED) + { + if (p[0] != SSL2_MT_ERROR) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_READ_WRONG_PACKET_TYPE); + } + else + { + SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_PEER_ERROR); + /* try to read the error message */ + i=ssl2_read(s,(char *)&(p[s->init_num]),3-s->init_num); + return ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i); + } + return(-1); + } + s->state=SSL2_ST_GET_SERVER_FINISHED_B; + } + + len = 1 + SSL2_SSL_SESSION_ID_LENGTH; + n = len - s->init_num; + i = ssl2_read(s,(char *)&(buf[s->init_num]), n); + if (i < n) /* XXX could be shorter than SSL2_SSL_SESSION_ID_LENGTH, that's the maximum */ + return(ssl2_part_read(s,SSL_F_GET_SERVER_FINISHED,i)); + s->init_num += i; + if (s->msg_callback) + s->msg_callback(0, s->version, 0, buf, (size_t)s->init_num, s, s->msg_callback_arg); /* SERVER-FINISHED */ + + if (!s->hit) /* new session */ + { + /* new session-id */ + /* Make sure we were not trying to re-use an old SSL_SESSION + * or bad things can happen */ + /* ZZZZZZZZZZZZZ */ + s->session->session_id_length=SSL2_SSL_SESSION_ID_LENGTH; + memcpy(s->session->session_id,p+1,SSL2_SSL_SESSION_ID_LENGTH); + } + else + { + if (!(s->options & SSL_OP_MICROSOFT_SESS_ID_BUG)) + { + if ((s->session->session_id_length > sizeof s->session->session_id) + || (0 != memcmp(buf + 1, s->session->session_id, + (unsigned int)s->session->session_id_length))) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_SSL_SESSION_ID_IS_DIFFERENT); + return(-1); + } + } + } + s->state = SSL_ST_OK; + return(1); + } + +/* loads in the certificate from the server */ +int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data) + { + STACK_OF(X509) *sk=NULL; + EVP_PKEY *pkey=NULL; + SESS_CERT *sc=NULL; + int i; + X509 *x509=NULL; + int ret=0; + + x509=d2i_X509(NULL,&data,(long)len); + if (x509 == NULL) + { + SSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_X509_LIB); + goto err; + } + + if ((sk=sk_X509_new_null()) == NULL || !sk_X509_push(sk,x509)) + { + SSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_MALLOC_FAILURE); + goto err; + } + + i=ssl_verify_cert_chain(s,sk); + + if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)) + { + SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED); + goto err; + } + ERR_clear_error(); /* but we keep s->verify_result */ + s->session->verify_result = s->verify_result; + + /* server's cert for this session */ + sc=ssl_sess_cert_new(); + if (sc == NULL) + { + ret= -1; + goto err; + } + if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert); + s->session->sess_cert=sc; + + sc->peer_pkeys[SSL_PKEY_RSA_ENC].x509=x509; + sc->peer_key= &(sc->peer_pkeys[SSL_PKEY_RSA_ENC]); + + pkey=X509_get_pubkey(x509); + x509=NULL; + if (pkey == NULL) + { + SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_UNABLE_TO_EXTRACT_PUBLIC_KEY); + goto err; + } + if (pkey->type != EVP_PKEY_RSA) + { + SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_PUBLIC_KEY_NOT_RSA); + goto err; + } + + if (!ssl_set_peer_cert_type(sc,SSL2_CT_X509_CERTIFICATE)) + goto err; + ret=1; +err: + sk_X509_free(sk); + X509_free(x509); + EVP_PKEY_free(pkey); + return(ret); + } + +static int ssl_rsa_public_encrypt(SESS_CERT *sc, int len, unsigned char *from, + unsigned char *to, int padding) + { + EVP_PKEY *pkey=NULL; + int i= -1; + + if ((sc == NULL) || (sc->peer_key->x509 == NULL) || + ((pkey=X509_get_pubkey(sc->peer_key->x509)) == NULL)) + { + SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,SSL_R_NO_PUBLICKEY); + return(-1); + } + if (pkey->type != EVP_PKEY_RSA) + { + SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,SSL_R_PUBLIC_KEY_IS_NOT_RSA); + goto end; + } + + /* we have the public key */ + i=RSA_public_encrypt(len,from,to,pkey->pkey.rsa,padding); + if (i < 0) + SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,ERR_R_RSA_LIB); +end: + EVP_PKEY_free(pkey); + return(i); + } +#else /* !OPENSSL_NO_SSL2 */ + +# if PEDANTIC +static void *dummy=&dummy; +# endif + +#endif diff --git a/ssl/s2_enc.c b/ssl/s2_enc.c new file mode 100644 index 000000000000..1f62acd5b1e6 --- /dev/null +++ b/ssl/s2_enc.c @@ -0,0 +1,194 @@ +/* ssl/s2_enc.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include "ssl_locl.h" +#ifndef OPENSSL_NO_SSL2 +#include <stdio.h> + +int ssl2_enc_init(SSL *s, int client) + { + /* Max number of bytes needed */ + EVP_CIPHER_CTX *rs,*ws; + const EVP_CIPHER *c; + const EVP_MD *md; + int num; + + if (!ssl_cipher_get_evp(s->session,&c,&md,NULL)) + { + ssl2_return_error(s,SSL2_PE_NO_CIPHER); + SSLerr(SSL_F_SSL2_ENC_INIT,SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS); + return(0); + } + + s->read_hash=md; + s->write_hash=md; + + if ((s->enc_read_ctx == NULL) && + ((s->enc_read_ctx=(EVP_CIPHER_CTX *) + OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)) + goto err; + + /* make sure it's intialized in case the malloc for enc_write_ctx fails + * and we exit with an error */ + rs= s->enc_read_ctx; + EVP_CIPHER_CTX_init(rs); + + if ((s->enc_write_ctx == NULL) && + ((s->enc_write_ctx=(EVP_CIPHER_CTX *) + OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)) + goto err; + + ws= s->enc_write_ctx; + EVP_CIPHER_CTX_init(ws); + + num=c->key_len; + s->s2->key_material_length=num*2; + OPENSSL_assert(s->s2->key_material_length <= sizeof s->s2->key_material); + + if (ssl2_generate_key_material(s) <= 0) + return 0; + + OPENSSL_assert(c->iv_len <= (int)sizeof(s->session->key_arg)); + EVP_EncryptInit_ex(ws,c,NULL,&(s->s2->key_material[(client)?num:0]), + s->session->key_arg); + EVP_DecryptInit_ex(rs,c,NULL,&(s->s2->key_material[(client)?0:num]), + s->session->key_arg); + s->s2->read_key= &(s->s2->key_material[(client)?0:num]); + s->s2->write_key= &(s->s2->key_material[(client)?num:0]); + return(1); +err: + SSLerr(SSL_F_SSL2_ENC_INIT,ERR_R_MALLOC_FAILURE); + return(0); + } + +/* read/writes from s->s2->mac_data using length for encrypt and + * decrypt. It sets s->s2->padding and s->[rw]length + * if we are encrypting */ +void ssl2_enc(SSL *s, int send) + { + EVP_CIPHER_CTX *ds; + unsigned long l; + int bs; + + if (send) + { + ds=s->enc_write_ctx; + l=s->s2->wlength; + } + else + { + ds=s->enc_read_ctx; + l=s->s2->rlength; + } + + /* check for NULL cipher */ + if (ds == NULL) return; + + + bs=ds->cipher->block_size; + /* This should be using (bs-1) and bs instead of 7 and 8, but + * what the hell. */ + if (bs == 8) + l=(l+7)/8*8; + + EVP_Cipher(ds,s->s2->mac_data,s->s2->mac_data,l); + } + +void ssl2_mac(SSL *s, unsigned char *md, int send) + { + EVP_MD_CTX c; + unsigned char sequence[4],*p,*sec,*act; + unsigned long seq; + unsigned int len; + + if (send) + { + seq=s->s2->write_sequence; + sec=s->s2->write_key; + len=s->s2->wact_data_length; + act=s->s2->wact_data; + } + else + { + seq=s->s2->read_sequence; + sec=s->s2->read_key; + len=s->s2->ract_data_length; + act=s->s2->ract_data; + } + + p= &(sequence[0]); + l2n(seq,p); + + /* There has to be a MAC algorithm. */ + EVP_MD_CTX_init(&c); + EVP_DigestInit_ex(&c, s->read_hash, NULL); + EVP_DigestUpdate(&c,sec, + EVP_CIPHER_CTX_key_length(s->enc_read_ctx)); + EVP_DigestUpdate(&c,act,len); + /* the above line also does the pad data */ + EVP_DigestUpdate(&c,sequence,4); + EVP_DigestFinal_ex(&c,md,NULL); + EVP_MD_CTX_cleanup(&c); + } +#else /* !OPENSSL_NO_SSL2 */ + +# if PEDANTIC +static void *dummy=&dummy; +# endif + +#endif diff --git a/ssl/s2_lib.c b/ssl/s2_lib.c new file mode 100644 index 000000000000..10751b22baf8 --- /dev/null +++ b/ssl/s2_lib.c @@ -0,0 +1,478 @@ +/* ssl/s2_lib.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include "ssl_locl.h" +#ifndef OPENSSL_NO_SSL2 +#include <stdio.h> +#include <openssl/objects.h> +#include <openssl/evp.h> +#include <openssl/md5.h> + +const char ssl2_version_str[]="SSLv2" OPENSSL_VERSION_PTEXT; + +#define SSL2_NUM_CIPHERS (sizeof(ssl2_ciphers)/sizeof(SSL_CIPHER)) + +/* list of available SSLv2 ciphers (sorted by id) */ +OPENSSL_GLOBAL SSL_CIPHER ssl2_ciphers[]={ +/* NULL_WITH_MD5 v3 */ +#if 0 + { + 1, + SSL2_TXT_NULL_WITH_MD5, + SSL2_CK_NULL_WITH_MD5, + SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_MD5|SSL_SSLV2, + SSL_EXPORT|SSL_EXP40|SSL_STRONG_NONE, + 0, + 0, + 0, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +#endif +/* RC4_128_WITH_MD5 */ + { + 1, + SSL2_TXT_RC4_128_WITH_MD5, + SSL2_CK_RC4_128_WITH_MD5, + SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2, + SSL_NOT_EXP|SSL_MEDIUM, + 0, + 128, + 128, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +/* RC4_128_EXPORT40_WITH_MD5 */ + { + 1, + SSL2_TXT_RC4_128_EXPORT40_WITH_MD5, + SSL2_CK_RC4_128_EXPORT40_WITH_MD5, + SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2, + SSL_EXPORT|SSL_EXP40, + SSL2_CF_5_BYTE_ENC, + 40, + 128, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +/* RC2_128_CBC_WITH_MD5 */ + { + 1, + SSL2_TXT_RC2_128_CBC_WITH_MD5, + SSL2_CK_RC2_128_CBC_WITH_MD5, + SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_SSLV2, + SSL_NOT_EXP|SSL_MEDIUM, + 0, + 128, + 128, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +/* RC2_128_CBC_EXPORT40_WITH_MD5 */ + { + 1, + SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5, + SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5, + SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_SSLV2, + SSL_EXPORT|SSL_EXP40, + SSL2_CF_5_BYTE_ENC, + 40, + 128, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +/* IDEA_128_CBC_WITH_MD5 */ +#ifndef OPENSSL_NO_IDEA + { + 1, + SSL2_TXT_IDEA_128_CBC_WITH_MD5, + SSL2_CK_IDEA_128_CBC_WITH_MD5, + SSL_kRSA|SSL_aRSA|SSL_IDEA|SSL_MD5|SSL_SSLV2, + SSL_NOT_EXP|SSL_MEDIUM, + 0, + 128, + 128, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +#endif +/* DES_64_CBC_WITH_MD5 */ + { + 1, + SSL2_TXT_DES_64_CBC_WITH_MD5, + SSL2_CK_DES_64_CBC_WITH_MD5, + SSL_kRSA|SSL_aRSA|SSL_DES|SSL_MD5|SSL_SSLV2, + SSL_NOT_EXP|SSL_LOW, + 0, + 56, + 56, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +/* DES_192_EDE3_CBC_WITH_MD5 */ + { + 1, + SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5, + SSL2_CK_DES_192_EDE3_CBC_WITH_MD5, + SSL_kRSA|SSL_aRSA|SSL_3DES|SSL_MD5|SSL_SSLV2, + SSL_NOT_EXP|SSL_HIGH, + 0, + 168, + 168, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +/* RC4_64_WITH_MD5 */ +#if 0 + { + 1, + SSL2_TXT_RC4_64_WITH_MD5, + SSL2_CK_RC4_64_WITH_MD5, + SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2, + SSL_NOT_EXP|SSL_LOW, + SSL2_CF_8_BYTE_ENC, + 64, + 64, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +#endif +/* NULL SSLeay (testing) */ +#if 0 + { + 0, + SSL2_TXT_NULL, + SSL2_CK_NULL, + 0, + SSL_STRONG_NONE, + 0, + 0, + 0, + SSL_ALL_CIPHERS, + SSL_ALL_STRENGTHS, + }, +#endif + +/* end of list :-) */ + }; + +long ssl2_default_timeout(void) + { + return(300); + } + +IMPLEMENT_ssl2_meth_func(sslv2_base_method, + ssl_undefined_function, + ssl_undefined_function, + ssl_bad_method) + +int ssl2_num_ciphers(void) + { + return(SSL2_NUM_CIPHERS); + } + +SSL_CIPHER *ssl2_get_cipher(unsigned int u) + { + if (u < SSL2_NUM_CIPHERS) + return(&(ssl2_ciphers[SSL2_NUM_CIPHERS-1-u])); + else + return(NULL); + } + +int ssl2_pending(const SSL *s) + { + return SSL_in_init(s) ? 0 : s->s2->ract_data_length; + } + +int ssl2_new(SSL *s) + { + SSL2_STATE *s2; + + if ((s2=OPENSSL_malloc(sizeof *s2)) == NULL) goto err; + memset(s2,0,sizeof *s2); + +#if SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER + 3 > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER + 2 +# error "assertion failed" +#endif + + if ((s2->rbuf=OPENSSL_malloc( + SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err; + /* wbuf needs one byte more because when using two-byte headers, + * we leave the first byte unused in do_ssl_write (s2_pkt.c) */ + if ((s2->wbuf=OPENSSL_malloc( + SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+3)) == NULL) goto err; + s->s2=s2; + + ssl2_clear(s); + return(1); +err: + if (s2 != NULL) + { + if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf); + if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf); + OPENSSL_free(s2); + } + return(0); + } + +void ssl2_free(SSL *s) + { + SSL2_STATE *s2; + + if(s == NULL) + return; + + s2=s->s2; + if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf); + if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf); + OPENSSL_cleanse(s2,sizeof *s2); + OPENSSL_free(s2); + s->s2=NULL; + } + +void ssl2_clear(SSL *s) + { + SSL2_STATE *s2; + unsigned char *rbuf,*wbuf; + + s2=s->s2; + + rbuf=s2->rbuf; + wbuf=s2->wbuf; + + memset(s2,0,sizeof *s2); + + s2->rbuf=rbuf; + s2->wbuf=wbuf; + s2->clear_text=1; + s->packet=s2->rbuf; + s->version=SSL2_VERSION; + s->packet_length=0; + } + +long ssl2_ctrl(SSL *s, int cmd, long larg, void *parg) + { + int ret=0; + + switch(cmd) + { + case SSL_CTRL_GET_SESSION_REUSED: + ret=s->hit; + break; + default: + break; + } + return(ret); + } + +long ssl2_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) + { + return(0); + } + +long ssl2_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) + { + return(0); + } + +long ssl2_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) + { + return(0); + } + +/* This function needs to check if the ciphers required are actually + * available */ +SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p) + { + SSL_CIPHER c,*cp; + unsigned long id; + + id=0x02000000L|((unsigned long)p[0]<<16L)| + ((unsigned long)p[1]<<8L)|(unsigned long)p[2]; + c.id=id; + cp = (SSL_CIPHER *)OBJ_bsearch((char *)&c, + (char *)ssl2_ciphers, + SSL2_NUM_CIPHERS,sizeof(SSL_CIPHER), + FP_ICC ssl_cipher_id_cmp); + if ((cp == NULL) || (cp->valid == 0)) + return NULL; + else + return cp; + } + +int ssl2_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p) + { + long l; + + if (p != NULL) + { + l=c->id; + if ((l & 0xff000000) != 0x02000000) return(0); + p[0]=((unsigned char)(l>>16L))&0xFF; + p[1]=((unsigned char)(l>> 8L))&0xFF; + p[2]=((unsigned char)(l ))&0xFF; + } + return(3); + } + +int ssl2_generate_key_material(SSL *s) + { + unsigned int i; + EVP_MD_CTX ctx; + unsigned char *km; + unsigned char c='0'; + const EVP_MD *md5; + + md5 = EVP_md5(); + +#ifdef CHARSET_EBCDIC + c = os_toascii['0']; /* Must be an ASCII '0', not EBCDIC '0', + see SSLv2 docu */ +#endif + EVP_MD_CTX_init(&ctx); + km=s->s2->key_material; + + if (s->session->master_key_length < 0 || + s->session->master_key_length > (int)sizeof(s->session->master_key)) + { + SSLerr(SSL_F_SSL2_GENERATE_KEY_MATERIAL, ERR_R_INTERNAL_ERROR); + return 0; + } + + for (i=0; i<s->s2->key_material_length; i += EVP_MD_size(md5)) + { + if (((km - s->s2->key_material) + EVP_MD_size(md5)) > + (int)sizeof(s->s2->key_material)) + { + /* EVP_DigestFinal_ex() below would write beyond buffer */ + SSLerr(SSL_F_SSL2_GENERATE_KEY_MATERIAL, ERR_R_INTERNAL_ERROR); + return 0; + } + + EVP_DigestInit_ex(&ctx, md5, NULL); + + OPENSSL_assert(s->session->master_key_length >= 0 + && s->session->master_key_length + < (int)sizeof(s->session->master_key)); + EVP_DigestUpdate(&ctx,s->session->master_key,s->session->master_key_length); + EVP_DigestUpdate(&ctx,&c,1); + c++; + EVP_DigestUpdate(&ctx,s->s2->challenge,s->s2->challenge_length); + EVP_DigestUpdate(&ctx,s->s2->conn_id,s->s2->conn_id_length); + EVP_DigestFinal_ex(&ctx,km,NULL); + km += EVP_MD_size(md5); + } + + EVP_MD_CTX_cleanup(&ctx); + return 1; + } + +void ssl2_return_error(SSL *s, int err) + { + if (!s->error) + { + s->error=3; + s->error_code=err; + + ssl2_write_error(s); + } + } + + +void ssl2_write_error(SSL *s) + { + unsigned char buf[3]; + int i,error; + + buf[0]=SSL2_MT_ERROR; + buf[1]=(s->error_code>>8)&0xff; + buf[2]=(s->error_code)&0xff; + +/* state=s->rwstate;*/ + + error=s->error; /* number of bytes left to write */ + s->error=0; + OPENSSL_assert(error >= 0 && error <= (int)sizeof(buf)); + i=ssl2_write(s,&(buf[3-error]),error); + +/* if (i == error) s->rwstate=state; */ + + if (i < 0) + s->error=error; + else + { + s->error=error-i; + + if (s->error == 0) + if (s->msg_callback) + s->msg_callback(1, s->version, 0, buf, 3, s, s->msg_callback_arg); /* ERROR */ + } + } + +int ssl2_shutdown(SSL *s) + { + s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN); + return(1); + } +#else /* !OPENSSL_NO_SSL2 */ + +# if PEDANTIC +static void *dummy=&dummy; +# endif + +#endif diff --git a/ssl/s2_meth.c b/ssl/s2_meth.c new file mode 100644 index 000000000000..a35e435b7137 --- /dev/null +++ b/ssl/s2_meth.c @@ -0,0 +1,84 @@ +/* ssl/s2_meth.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include "ssl_locl.h" +#ifndef OPENSSL_NO_SSL2 +#include <stdio.h> +#include <openssl/objects.h> + +static SSL_METHOD *ssl2_get_method(int ver); +static SSL_METHOD *ssl2_get_method(int ver) + { + if (ver == SSL2_VERSION) + return(SSLv2_method()); + else + return(NULL); + } + +IMPLEMENT_ssl2_meth_func(SSLv2_method, + ssl2_accept, + ssl2_connect, + ssl2_get_method) + +#else /* !OPENSSL_NO_SSL2 */ + +# if PEDANTIC +static void *dummy=&dummy; +# endif + +#endif diff --git a/ssl/s2_pkt.c b/ssl/s2_pkt.c new file mode 100644 index 000000000000..a10929a757f9 --- /dev/null +++ b/ssl/s2_pkt.c @@ -0,0 +1,737 @@ +/* ssl/s2_pkt.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "ssl_locl.h" +#ifndef OPENSSL_NO_SSL2 +#include <stdio.h> +#include <errno.h> +#define USE_SOCKETS + +static int read_n(SSL *s,unsigned int n,unsigned int max,unsigned int extend); +static int do_ssl_write(SSL *s, const unsigned char *buf, unsigned int len); +static int write_pending(SSL *s, const unsigned char *buf, unsigned int len); +static int ssl_mt_error(int n); + + +/* SSL 2.0 imlementation for SSL_read/SSL_peek - + * This routine will return 0 to len bytes, decrypted etc if required. + */ +static int ssl2_read_internal(SSL *s, void *buf, int len, int peek) + { + int n; + unsigned char mac[MAX_MAC_SIZE]; + unsigned char *p; + int i; + unsigned int mac_size; + + ssl2_read_again: + if (SSL_in_init(s) && !s->in_handshake) + { + n=s->handshake_func(s); + if (n < 0) return(n); + if (n == 0) + { + SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_SSL_HANDSHAKE_FAILURE); + return(-1); + } + } + + clear_sys_error(); + s->rwstate=SSL_NOTHING; + if (len <= 0) return(len); + + if (s->s2->ract_data_length != 0) /* read from buffer */ + { + if (len > s->s2->ract_data_length) + n=s->s2->ract_data_length; + else + n=len; + + memcpy(buf,s->s2->ract_data,(unsigned int)n); + if (!peek) + { + s->s2->ract_data_length-=n; + s->s2->ract_data+=n; + if (s->s2->ract_data_length == 0) + s->rstate=SSL_ST_READ_HEADER; + } + + return(n); + } + + /* s->s2->ract_data_length == 0 + * + * Fill the buffer, then goto ssl2_read_again. + */ + + if (s->rstate == SSL_ST_READ_HEADER) + { + if (s->first_packet) + { + n=read_n(s,5,SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2,0); + if (n <= 0) return(n); /* error or non-blocking */ + s->first_packet=0; + p=s->packet; + if (!((p[0] & 0x80) && ( + (p[2] == SSL2_MT_CLIENT_HELLO) || + (p[2] == SSL2_MT_SERVER_HELLO)))) + { + SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_NON_SSLV2_INITIAL_PACKET); + return(-1); + } + } + else + { + n=read_n(s,2,SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2,0); + if (n <= 0) return(n); /* error or non-blocking */ + } + /* part read stuff */ + + s->rstate=SSL_ST_READ_BODY; + p=s->packet; + /* Do header */ + /*s->s2->padding=0;*/ + s->s2->escape=0; + s->s2->rlength=(((unsigned int)p[0])<<8)|((unsigned int)p[1]); + if ((p[0] & TWO_BYTE_BIT)) /* Two byte header? */ + { + s->s2->three_byte_header=0; + s->s2->rlength&=TWO_BYTE_MASK; + } + else + { + s->s2->three_byte_header=1; + s->s2->rlength&=THREE_BYTE_MASK; + + /* security >s2->escape */ + s->s2->escape=((p[0] & SEC_ESC_BIT))?1:0; + } + } + + if (s->rstate == SSL_ST_READ_BODY) + { + n=s->s2->rlength+2+s->s2->three_byte_header; + if (n > (int)s->packet_length) + { + n-=s->packet_length; + i=read_n(s,(unsigned int)n,(unsigned int)n,1); + if (i <= 0) return(i); /* ERROR */ + } + + p= &(s->packet[2]); + s->rstate=SSL_ST_READ_HEADER; + if (s->s2->three_byte_header) + s->s2->padding= *(p++); + else s->s2->padding=0; + + /* Data portion */ + if (s->s2->clear_text) + { + mac_size = 0; + s->s2->mac_data=p; + s->s2->ract_data=p; + if (s->s2->padding) + { + SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_ILLEGAL_PADDING); + return(-1); + } + } + else + { + mac_size=EVP_MD_size(s->read_hash); + OPENSSL_assert(mac_size <= MAX_MAC_SIZE); + s->s2->mac_data=p; + s->s2->ract_data= &p[mac_size]; + if (s->s2->padding + mac_size > s->s2->rlength) + { + SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_ILLEGAL_PADDING); + return(-1); + } + } + + s->s2->ract_data_length=s->s2->rlength; + /* added a check for length > max_size in case + * encryption was not turned on yet due to an error */ + if ((!s->s2->clear_text) && + (s->s2->rlength >= mac_size)) + { + ssl2_enc(s,0); + s->s2->ract_data_length-=mac_size; + ssl2_mac(s,mac,0); + s->s2->ract_data_length-=s->s2->padding; + if ( (memcmp(mac,s->s2->mac_data, + (unsigned int)mac_size) != 0) || + (s->s2->rlength%EVP_CIPHER_CTX_block_size(s->enc_read_ctx) != 0)) + { + SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_BAD_MAC_DECODE); + return(-1); + } + } + INC32(s->s2->read_sequence); /* expect next number */ + /* s->s2->ract_data is now available for processing */ + + /* Possibly the packet that we just read had 0 actual data bytes. + * (SSLeay/OpenSSL itself never sends such packets; see ssl2_write.) + * In this case, returning 0 would be interpreted by the caller + * as indicating EOF, so it's not a good idea. Instead, we just + * continue reading; thus ssl2_read_internal may have to process + * multiple packets before it can return. + * + * [Note that using select() for blocking sockets *never* guarantees + * that the next SSL_read will not block -- the available + * data may contain incomplete packets, and except for SSL 2, + * renegotiation can confuse things even more.] */ + + goto ssl2_read_again; /* This should really be + * "return ssl2_read(s,buf,len)", + * but that would allow for + * denial-of-service attacks if a + * C compiler is used that does not + * recognize end-recursion. */ + } + else + { + SSLerr(SSL_F_SSL2_READ_INTERNAL,SSL_R_BAD_STATE); + return(-1); + } + } + +int ssl2_read(SSL *s, void *buf, int len) + { + return ssl2_read_internal(s, buf, len, 0); + } + +int ssl2_peek(SSL *s, void *buf, int len) + { + return ssl2_read_internal(s, buf, len, 1); + } + +static int read_n(SSL *s, unsigned int n, unsigned int max, + unsigned int extend) + { + int i,off,newb; + + /* if there is stuff still in the buffer from a previous read, + * and there is more than we want, take some. */ + if (s->s2->rbuf_left >= (int)n) + { + if (extend) + s->packet_length+=n; + else + { + s->packet= &(s->s2->rbuf[s->s2->rbuf_offs]); + s->packet_length=n; + } + s->s2->rbuf_left-=n; + s->s2->rbuf_offs+=n; + return(n); + } + + if (!s->read_ahead) max=n; + if (max > (unsigned int)(SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) + max=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2; + + + /* Else we want more than we have. + * First, if there is some left or we want to extend */ + off=0; + if ((s->s2->rbuf_left != 0) || ((s->packet_length != 0) && extend)) + { + newb=s->s2->rbuf_left; + if (extend) + { + off=s->packet_length; + if (s->packet != s->s2->rbuf) + memcpy(s->s2->rbuf,s->packet, + (unsigned int)newb+off); + } + else if (s->s2->rbuf_offs != 0) + { + memcpy(s->s2->rbuf,&(s->s2->rbuf[s->s2->rbuf_offs]), + (unsigned int)newb); + s->s2->rbuf_offs=0; + } + s->s2->rbuf_left=0; + } + else + newb=0; + + /* off is the offset to start writing too. + * r->s2->rbuf_offs is the 'unread data', now 0. + * newb is the number of new bytes so far + */ + s->packet=s->s2->rbuf; + while (newb < (int)n) + { + clear_sys_error(); + if (s->rbio != NULL) + { + s->rwstate=SSL_READING; + i=BIO_read(s->rbio,(char *)&(s->s2->rbuf[off+newb]), + max-newb); + } + else + { + SSLerr(SSL_F_READ_N,SSL_R_READ_BIO_NOT_SET); + i= -1; + } +#ifdef PKT_DEBUG + if (s->debug & 0x01) sleep(1); +#endif + if (i <= 0) + { + s->s2->rbuf_left+=newb; + return(i); + } + newb+=i; + } + + /* record unread data */ + if (newb > (int)n) + { + s->s2->rbuf_offs=n+off; + s->s2->rbuf_left=newb-n; + } + else + { + s->s2->rbuf_offs=0; + s->s2->rbuf_left=0; + } + if (extend) + s->packet_length+=n; + else + s->packet_length=n; + s->rwstate=SSL_NOTHING; + return(n); + } + +int ssl2_write(SSL *s, const void *_buf, int len) + { + const unsigned char *buf=_buf; + unsigned int n,tot; + int i; + + if (SSL_in_init(s) && !s->in_handshake) + { + i=s->handshake_func(s); + if (i < 0) return(i); + if (i == 0) + { + SSLerr(SSL_F_SSL2_WRITE,SSL_R_SSL_HANDSHAKE_FAILURE); + return(-1); + } + } + + if (s->error) + { + ssl2_write_error(s); + if (s->error) + return(-1); + } + + clear_sys_error(); + s->rwstate=SSL_NOTHING; + if (len <= 0) return(len); + + tot=s->s2->wnum; + s->s2->wnum=0; + + n=(len-tot); + for (;;) + { + i=do_ssl_write(s,&(buf[tot]),n); + if (i <= 0) + { + s->s2->wnum=tot; + return(i); + } + if ((i == (int)n) || + (s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE)) + { + return(tot+i); + } + + n-=i; + tot+=i; + } + } + +static int write_pending(SSL *s, const unsigned char *buf, unsigned int len) + { + int i; + + /* s->s2->wpend_len != 0 MUST be true. */ + + /* check that they have given us the same buffer to + * write */ + if ((s->s2->wpend_tot > (int)len) || + ((s->s2->wpend_buf != buf) && + !(s->mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER))) + { + SSLerr(SSL_F_WRITE_PENDING,SSL_R_BAD_WRITE_RETRY); + return(-1); + } + + for (;;) + { + clear_sys_error(); + if (s->wbio != NULL) + { + s->rwstate=SSL_WRITING; + i=BIO_write(s->wbio, + (char *)&(s->s2->write_ptr[s->s2->wpend_off]), + (unsigned int)s->s2->wpend_len); + } + else + { + SSLerr(SSL_F_WRITE_PENDING,SSL_R_WRITE_BIO_NOT_SET); + i= -1; + } +#ifdef PKT_DEBUG + if (s->debug & 0x01) sleep(1); +#endif + if (i == s->s2->wpend_len) + { + s->s2->wpend_len=0; + s->rwstate=SSL_NOTHING; + return(s->s2->wpend_ret); + } + else if (i <= 0) + return(i); + s->s2->wpend_off+=i; + s->s2->wpend_len-=i; + } + } + +static int do_ssl_write(SSL *s, const unsigned char *buf, unsigned int len) + { + unsigned int j,k,olen,p,mac_size,bs; + register unsigned char *pp; + + olen=len; + + /* first check if there is data from an encryption waiting to + * be sent - it must be sent because the other end is waiting. + * This will happen with non-blocking IO. We print it and then + * return. + */ + if (s->s2->wpend_len != 0) return(write_pending(s,buf,len)); + + /* set mac_size to mac size */ + if (s->s2->clear_text) + mac_size=0; + else + mac_size=EVP_MD_size(s->write_hash); + + /* lets set the pad p */ + if (s->s2->clear_text) + { + if (len > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER) + len=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER; + p=0; + s->s2->three_byte_header=0; + /* len=len; */ + } + else + { + bs=EVP_CIPHER_CTX_block_size(s->enc_read_ctx); + j=len+mac_size; + /* Two-byte headers allow for a larger record length than + * three-byte headers, but we can't use them if we need + * padding or if we have to set the escape bit. */ + if ((j > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) && + (!s->s2->escape)) + { + if (j > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER) + j=SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER; + /* set k to the max number of bytes with 2 + * byte header */ + k=j-(j%bs); + /* how many data bytes? */ + len=k-mac_size; + s->s2->three_byte_header=0; + p=0; + } + else if ((bs <= 1) && (!s->s2->escape)) + { + /* j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER, thus + * j < SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER */ + s->s2->three_byte_header=0; + p=0; + } + else /* we may have to use a 3 byte header */ + { + /* If s->s2->escape is not set, then + * j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER, and thus + * j < SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER. */ + p=(j%bs); + p=(p == 0)?0:(bs-p); + if (s->s2->escape) + { + s->s2->three_byte_header=1; + if (j > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) + j=SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER; + } + else + s->s2->three_byte_header=(p == 0)?0:1; + } + } + + /* Now + * j <= SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER + * holds, and if s->s2->three_byte_header is set, then even + * j <= SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER. + */ + + /* mac_size is the number of MAC bytes + * len is the number of data bytes we are going to send + * p is the number of padding bytes + * (if it is a two-byte header, then p == 0) */ + + s->s2->wlength=len; + s->s2->padding=p; + s->s2->mac_data= &(s->s2->wbuf[3]); + s->s2->wact_data= &(s->s2->wbuf[3+mac_size]); + /* we copy the data into s->s2->wbuf */ + memcpy(s->s2->wact_data,buf,len); + if (p) + memset(&(s->s2->wact_data[len]),0,p); /* arbitrary padding */ + + if (!s->s2->clear_text) + { + s->s2->wact_data_length=len+p; + ssl2_mac(s,s->s2->mac_data,1); + s->s2->wlength+=p+mac_size; + ssl2_enc(s,1); + } + + /* package up the header */ + s->s2->wpend_len=s->s2->wlength; + if (s->s2->three_byte_header) /* 3 byte header */ + { + pp=s->s2->mac_data; + pp-=3; + pp[0]=(s->s2->wlength>>8)&(THREE_BYTE_MASK>>8); + if (s->s2->escape) pp[0]|=SEC_ESC_BIT; + pp[1]=s->s2->wlength&0xff; + pp[2]=s->s2->padding; + s->s2->wpend_len+=3; + } + else + { + pp=s->s2->mac_data; + pp-=2; + pp[0]=((s->s2->wlength>>8)&(TWO_BYTE_MASK>>8))|TWO_BYTE_BIT; + pp[1]=s->s2->wlength&0xff; + s->s2->wpend_len+=2; + } + s->s2->write_ptr=pp; + + INC32(s->s2->write_sequence); /* expect next number */ + + /* lets try to actually write the data */ + s->s2->wpend_tot=olen; + s->s2->wpend_buf=buf; + + s->s2->wpend_ret=len; + + s->s2->wpend_off=0; + return(write_pending(s,buf,olen)); + } + +int ssl2_part_read(SSL *s, unsigned long f, int i) + { + unsigned char *p; + int j; + + if (i < 0) + { + /* ssl2_return_error(s); */ + /* for non-blocking io, + * this is not necessarily fatal */ + return(i); + } + else + { + s->init_num+=i; + + /* Check for error. While there are recoverable errors, + * this function is not called when those must be expected; + * any error detected here is fatal. */ + if (s->init_num >= 3) + { + p=(unsigned char *)s->init_buf->data; + if (p[0] == SSL2_MT_ERROR) + { + j=(p[1]<<8)|p[2]; + SSLerr((int)f,ssl_mt_error(j)); + s->init_num -= 3; + if (s->init_num > 0) + memmove(p, p+3, s->init_num); + } + } + + /* If it's not an error message, we have some error anyway -- + * the message was shorter than expected. This too is treated + * as fatal (at least if SSL_get_error is asked for its opinion). */ + return(0); + } + } + +int ssl2_do_write(SSL *s) + { + int ret; + + ret=ssl2_write(s,&s->init_buf->data[s->init_off],s->init_num); + if (ret == s->init_num) + { + if (s->msg_callback) + s->msg_callback(1, s->version, 0, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg); + return(1); + } + if (ret < 0) + return(-1); + s->init_off+=ret; + s->init_num-=ret; + return(0); + } + +static int ssl_mt_error(int n) + { + int ret; + + switch (n) + { + case SSL2_PE_NO_CIPHER: + ret=SSL_R_PEER_ERROR_NO_CIPHER; + break; + case SSL2_PE_NO_CERTIFICATE: + ret=SSL_R_PEER_ERROR_NO_CERTIFICATE; + break; + case SSL2_PE_BAD_CERTIFICATE: + ret=SSL_R_PEER_ERROR_CERTIFICATE; + break; + case SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE: + ret=SSL_R_PEER_ERROR_UNSUPPORTED_CERTIFICATE_TYPE; + break; + default: + ret=SSL_R_UNKNOWN_REMOTE_ERROR_TYPE; + break; + } + return(ret); + } +#else /* !OPENSSL_NO_SSL2 */ + +# if PEDANTIC +static void *dummy=&dummy; +# endif + +#endif diff --git a/ssl/s2_srvr.c b/ssl/s2_srvr.c new file mode 100644 index 000000000000..27d71a2e0952 --- /dev/null +++ b/ssl/s2_srvr.c @@ -0,0 +1,1143 @@ +/* ssl/s2_srvr.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "ssl_locl.h" +#ifndef OPENSSL_NO_SSL2 +#include <stdio.h> +#include <openssl/bio.h> +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/evp.h> + +static SSL_METHOD *ssl2_get_server_method(int ver); +static int get_client_master_key(SSL *s); +static int get_client_hello(SSL *s); +static int server_hello(SSL *s); +static int get_client_finished(SSL *s); +static int server_verify(SSL *s); +static int server_finish(SSL *s); +static int request_certificate(SSL *s); +static int ssl_rsa_private_decrypt(CERT *c, int len, unsigned char *from, + unsigned char *to,int padding); +#define BREAK break + +static SSL_METHOD *ssl2_get_server_method(int ver) + { + if (ver == SSL2_VERSION) + return(SSLv2_server_method()); + else + return(NULL); + } + +IMPLEMENT_ssl2_meth_func(SSLv2_server_method, + ssl2_accept, + ssl_undefined_function, + ssl2_get_server_method) + +int ssl2_accept(SSL *s) + { + unsigned long l=(unsigned long)time(NULL); + BUF_MEM *buf=NULL; + int ret= -1; + long num1; + void (*cb)(const SSL *ssl,int type,int val)=NULL; + int new_state,state; + + RAND_add(&l,sizeof(l),0); + ERR_clear_error(); + clear_sys_error(); + + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + /* init things to blank */ + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); + + if (s->cert == NULL) + { + SSLerr(SSL_F_SSL2_ACCEPT,SSL_R_NO_CERTIFICATE_SET); + return(-1); + } + + clear_sys_error(); + for (;;) + { + state=s->state; + + switch (s->state) + { + case SSL_ST_BEFORE: + case SSL_ST_ACCEPT: + case SSL_ST_BEFORE|SSL_ST_ACCEPT: + case SSL_ST_OK|SSL_ST_ACCEPT: + + s->server=1; + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); + + s->version=SSL2_VERSION; + s->type=SSL_ST_ACCEPT; + + buf=s->init_buf; + if ((buf == NULL) && ((buf=BUF_MEM_new()) == NULL)) + { ret= -1; goto end; } + if (!BUF_MEM_grow(buf,(int) + SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) + { ret= -1; goto end; } + s->init_buf=buf; + s->init_num=0; + s->ctx->stats.sess_accept++; + s->handshake_func=ssl2_accept; + s->state=SSL2_ST_GET_CLIENT_HELLO_A; + BREAK; + + case SSL2_ST_GET_CLIENT_HELLO_A: + case SSL2_ST_GET_CLIENT_HELLO_B: + case SSL2_ST_GET_CLIENT_HELLO_C: + s->shutdown=0; + ret=get_client_hello(s); + if (ret <= 0) goto end; + s->init_num=0; + s->state=SSL2_ST_SEND_SERVER_HELLO_A; + BREAK; + + case SSL2_ST_SEND_SERVER_HELLO_A: + case SSL2_ST_SEND_SERVER_HELLO_B: + ret=server_hello(s); + if (ret <= 0) goto end; + s->init_num=0; + if (!s->hit) + { + s->state=SSL2_ST_GET_CLIENT_MASTER_KEY_A; + BREAK; + } + else + { + s->state=SSL2_ST_SERVER_START_ENCRYPTION; + BREAK; + } + case SSL2_ST_GET_CLIENT_MASTER_KEY_A: + case SSL2_ST_GET_CLIENT_MASTER_KEY_B: + ret=get_client_master_key(s); + if (ret <= 0) goto end; + s->init_num=0; + s->state=SSL2_ST_SERVER_START_ENCRYPTION; + BREAK; + + case SSL2_ST_SERVER_START_ENCRYPTION: + /* Ok we how have sent all the stuff needed to + * start encrypting, the next packet back will + * be encrypted. */ + if (!ssl2_enc_init(s,0)) + { ret= -1; goto end; } + s->s2->clear_text=0; + s->state=SSL2_ST_SEND_SERVER_VERIFY_A; + BREAK; + + case SSL2_ST_SEND_SERVER_VERIFY_A: + case SSL2_ST_SEND_SERVER_VERIFY_B: + ret=server_verify(s); + if (ret <= 0) goto end; + s->init_num=0; + if (s->hit) + { + /* If we are in here, we have been + * buffering the output, so we need to + * flush it and remove buffering from + * future traffic */ + s->state=SSL2_ST_SEND_SERVER_VERIFY_C; + BREAK; + } + else + { + s->state=SSL2_ST_GET_CLIENT_FINISHED_A; + break; + } + + case SSL2_ST_SEND_SERVER_VERIFY_C: + /* get the number of bytes to write */ + num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL); + if (num1 != 0) + { + s->rwstate=SSL_WRITING; + num1=BIO_flush(s->wbio); + if (num1 <= 0) { ret= -1; goto end; } + s->rwstate=SSL_NOTHING; + } + + /* flushed and now remove buffering */ + s->wbio=BIO_pop(s->wbio); + + s->state=SSL2_ST_GET_CLIENT_FINISHED_A; + BREAK; + + case SSL2_ST_GET_CLIENT_FINISHED_A: + case SSL2_ST_GET_CLIENT_FINISHED_B: + ret=get_client_finished(s); + if (ret <= 0) + goto end; + s->init_num=0; + s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_A; + BREAK; + + case SSL2_ST_SEND_REQUEST_CERTIFICATE_A: + case SSL2_ST_SEND_REQUEST_CERTIFICATE_B: + case SSL2_ST_SEND_REQUEST_CERTIFICATE_C: + case SSL2_ST_SEND_REQUEST_CERTIFICATE_D: + /* don't do a 'request certificate' if we + * don't want to, or we already have one, and + * we only want to do it once. */ + if (!(s->verify_mode & SSL_VERIFY_PEER) || + ((s->session->peer != NULL) && + (s->verify_mode & SSL_VERIFY_CLIENT_ONCE))) + { + s->state=SSL2_ST_SEND_SERVER_FINISHED_A; + break; + } + else + { + ret=request_certificate(s); + if (ret <= 0) goto end; + s->init_num=0; + s->state=SSL2_ST_SEND_SERVER_FINISHED_A; + } + BREAK; + + case SSL2_ST_SEND_SERVER_FINISHED_A: + case SSL2_ST_SEND_SERVER_FINISHED_B: + ret=server_finish(s); + if (ret <= 0) goto end; + s->init_num=0; + s->state=SSL_ST_OK; + break; + + case SSL_ST_OK: + BUF_MEM_free(s->init_buf); + ssl_free_wbio_buffer(s); + s->init_buf=NULL; + s->init_num=0; + /* ERR_clear_error();*/ + + ssl_update_cache(s,SSL_SESS_CACHE_SERVER); + + s->ctx->stats.sess_accept_good++; + /* s->server=1; */ + ret=1; + + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1); + + goto end; + /* BREAK; */ + + default: + SSLerr(SSL_F_SSL2_ACCEPT,SSL_R_UNKNOWN_STATE); + ret= -1; + goto end; + /* BREAK; */ + } + + if ((cb != NULL) && (s->state != state)) + { + new_state=s->state; + s->state=state; + cb(s,SSL_CB_ACCEPT_LOOP,1); + s->state=new_state; + } + } +end: + s->in_handshake--; + if (cb != NULL) + cb(s,SSL_CB_ACCEPT_EXIT,ret); + return(ret); + } + +static int get_client_master_key(SSL *s) + { + int is_export,i,n,keya,ek; + unsigned long len; + unsigned char *p; + SSL_CIPHER *cp; + const EVP_CIPHER *c; + const EVP_MD *md; + + p=(unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_GET_CLIENT_MASTER_KEY_A) + { + i=ssl2_read(s,(char *)&(p[s->init_num]),10-s->init_num); + + if (i < (10-s->init_num)) + return(ssl2_part_read(s,SSL_F_GET_CLIENT_MASTER_KEY,i)); + s->init_num = 10; + + if (*(p++) != SSL2_MT_CLIENT_MASTER_KEY) + { + if (p[-1] != SSL2_MT_ERROR) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_READ_WRONG_PACKET_TYPE); + } + else + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_PEER_ERROR); + return(-1); + } + + cp=ssl2_get_cipher_by_char(p); + if (cp == NULL) + { + ssl2_return_error(s,SSL2_PE_NO_CIPHER); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_NO_CIPHER_MATCH); + return(-1); + } + s->session->cipher= cp; + + p+=3; + n2s(p,i); s->s2->tmp.clear=i; + n2s(p,i); s->s2->tmp.enc=i; + n2s(p,i); s->session->key_arg_length=i; + if(s->session->key_arg_length > SSL_MAX_KEY_ARG_LENGTH) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_KEY_ARG_TOO_LONG); + return -1; + } + s->state=SSL2_ST_GET_CLIENT_MASTER_KEY_B; + } + + /* SSL2_ST_GET_CLIENT_MASTER_KEY_B */ + p=(unsigned char *)s->init_buf->data; + if (s->init_buf->length < SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR); + return -1; + } + keya=s->session->key_arg_length; + len = 10 + (unsigned long)s->s2->tmp.clear + (unsigned long)s->s2->tmp.enc + (unsigned long)keya; + if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_MESSAGE_TOO_LONG); + return -1; + } + n = (int)len - s->init_num; + i = ssl2_read(s,(char *)&(p[s->init_num]),n); + if (i != n) return(ssl2_part_read(s,SSL_F_GET_CLIENT_MASTER_KEY,i)); + if (s->msg_callback) + s->msg_callback(0, s->version, 0, p, (size_t)len, s, s->msg_callback_arg); /* CLIENT-MASTER-KEY */ + p += 10; + + memcpy(s->session->key_arg,&(p[s->s2->tmp.clear+s->s2->tmp.enc]), + (unsigned int)keya); + + if (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_NO_PRIVATEKEY); + return(-1); + } + i=ssl_rsa_private_decrypt(s->cert,s->s2->tmp.enc, + &(p[s->s2->tmp.clear]),&(p[s->s2->tmp.clear]), + (s->s2->ssl2_rollback)?RSA_SSLV23_PADDING:RSA_PKCS1_PADDING); + + is_export=SSL_C_IS_EXPORT(s->session->cipher); + + if (!ssl_cipher_get_evp(s->session,&c,&md,NULL)) + { + ssl2_return_error(s,SSL2_PE_NO_CIPHER); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS); + return(0); + } + + if (s->session->cipher->algorithm2 & SSL2_CF_8_BYTE_ENC) + { + is_export=1; + ek=8; + } + else + ek=5; + + /* bad decrypt */ +#if 1 + /* If a bad decrypt, continue with protocol but with a + * random master secret (Bleichenbacher attack) */ + if ((i < 0) || + ((!is_export && (i != EVP_CIPHER_key_length(c))) + || (is_export && ((i != ek) || (s->s2->tmp.clear+(unsigned int)i != + (unsigned int)EVP_CIPHER_key_length(c)))))) + { + ERR_clear_error(); + if (is_export) + i=ek; + else + i=EVP_CIPHER_key_length(c); + if (RAND_pseudo_bytes(p,i) <= 0) + return 0; + } +#else + if (i < 0) + { + error=1; + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_BAD_RSA_DECRYPT); + } + /* incorrect number of key bytes for non export cipher */ + else if ((!is_export && (i != EVP_CIPHER_key_length(c))) + || (is_export && ((i != ek) || (s->s2->tmp.clear+i != + EVP_CIPHER_key_length(c))))) + { + error=1; + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_WRONG_NUMBER_OF_KEY_BITS); + } + if (error) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + return(-1); + } +#endif + + if (is_export) i+=s->s2->tmp.clear; + + if (i > SSL_MAX_MASTER_KEY_LENGTH) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR); + return -1; + } + s->session->master_key_length=i; + memcpy(s->session->master_key,p,(unsigned int)i); + return(1); + } + +static int get_client_hello(SSL *s) + { + int i,n; + unsigned long len; + unsigned char *p; + STACK_OF(SSL_CIPHER) *cs; /* a stack of SSL_CIPHERS */ + STACK_OF(SSL_CIPHER) *cl; /* the ones we want to use */ + STACK_OF(SSL_CIPHER) *prio, *allow; + int z; + + /* This is a bit of a hack to check for the correct packet + * type the first time round. */ + if (s->state == SSL2_ST_GET_CLIENT_HELLO_A) + { + s->first_packet=1; + s->state=SSL2_ST_GET_CLIENT_HELLO_B; + } + + p=(unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_GET_CLIENT_HELLO_B) + { + i=ssl2_read(s,(char *)&(p[s->init_num]),9-s->init_num); + if (i < (9-s->init_num)) + return(ssl2_part_read(s,SSL_F_GET_CLIENT_HELLO,i)); + s->init_num = 9; + + if (*(p++) != SSL2_MT_CLIENT_HELLO) + { + if (p[-1] != SSL2_MT_ERROR) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_READ_WRONG_PACKET_TYPE); + } + else + SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_PEER_ERROR); + return(-1); + } + n2s(p,i); + if (i < s->version) s->version=i; + n2s(p,i); s->s2->tmp.cipher_spec_length=i; + n2s(p,i); s->s2->tmp.session_id_length=i; + n2s(p,i); s->s2->challenge_length=i; + if ( (i < SSL2_MIN_CHALLENGE_LENGTH) || + (i > SSL2_MAX_CHALLENGE_LENGTH)) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_INVALID_CHALLENGE_LENGTH); + return(-1); + } + s->state=SSL2_ST_GET_CLIENT_HELLO_C; + } + + /* SSL2_ST_GET_CLIENT_HELLO_C */ + p=(unsigned char *)s->init_buf->data; + len = 9 + (unsigned long)s->s2->tmp.cipher_spec_length + (unsigned long)s->s2->challenge_length + (unsigned long)s->s2->tmp.session_id_length; + if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_MESSAGE_TOO_LONG); + return -1; + } + n = (int)len - s->init_num; + i = ssl2_read(s,(char *)&(p[s->init_num]),n); + if (i != n) return(ssl2_part_read(s,SSL_F_GET_CLIENT_HELLO,i)); + if (s->msg_callback) + s->msg_callback(0, s->version, 0, p, (size_t)len, s, s->msg_callback_arg); /* CLIENT-HELLO */ + p += 9; + + /* get session-id before cipher stuff so we can get out session + * structure if it is cached */ + /* session-id */ + if ((s->s2->tmp.session_id_length != 0) && + (s->s2->tmp.session_id_length != SSL2_SSL_SESSION_ID_LENGTH)) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_BAD_SSL_SESSION_ID_LENGTH); + return(-1); + } + + if (s->s2->tmp.session_id_length == 0) + { + if (!ssl_get_new_session(s,1)) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + return(-1); + } + } + else + { + i=ssl_get_prev_session(s,&(p[s->s2->tmp.cipher_spec_length]), + s->s2->tmp.session_id_length); + if (i == 1) + { /* previous session */ + s->hit=1; + } + else if (i == -1) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + return(-1); + } + else + { + if (s->cert == NULL) + { + ssl2_return_error(s,SSL2_PE_NO_CERTIFICATE); + SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_NO_CERTIFICATE_SET); + return(-1); + } + + if (!ssl_get_new_session(s,1)) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + return(-1); + } + } + } + + if (!s->hit) + { + cs=ssl_bytes_to_cipher_list(s,p,s->s2->tmp.cipher_spec_length, + &s->session->ciphers); + if (cs == NULL) goto mem_err; + + cl=SSL_get_ciphers(s); + + if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) + { + prio=sk_SSL_CIPHER_dup(cl); + if (prio == NULL) goto mem_err; + allow = cs; + } + else + { + prio = cs; + allow = cl; + } + for (z=0; z<sk_SSL_CIPHER_num(prio); z++) + { + if (sk_SSL_CIPHER_find(allow,sk_SSL_CIPHER_value(prio,z)) < 0) + { + sk_SSL_CIPHER_delete(prio,z); + z--; + } + } + if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) + { + sk_SSL_CIPHER_free(s->session->ciphers); + s->session->ciphers = prio; + } + /* s->session->ciphers should now have a list of + * ciphers that are on both the client and server. + * This list is ordered by the order the client sent + * the ciphers or in the order of the server's preference + * if SSL_OP_CIPHER_SERVER_PREFERENCE was set. + */ + } + p+=s->s2->tmp.cipher_spec_length; + /* done cipher selection */ + + /* session id extracted already */ + p+=s->s2->tmp.session_id_length; + + /* challenge */ + if (s->s2->challenge_length > sizeof s->s2->challenge) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_HELLO, ERR_R_INTERNAL_ERROR); + return -1; + } + memcpy(s->s2->challenge,p,(unsigned int)s->s2->challenge_length); + return(1); +mem_err: + SSLerr(SSL_F_GET_CLIENT_HELLO,ERR_R_MALLOC_FAILURE); + return(0); + } + +static int server_hello(SSL *s) + { + unsigned char *p,*d; + int n,hit; + STACK_OF(SSL_CIPHER) *sk; + + p=(unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_SEND_SERVER_HELLO_A) + { + d=p+11; + *(p++)=SSL2_MT_SERVER_HELLO; /* type */ + hit=s->hit; + *(p++)=(unsigned char)hit; +#if 1 + if (!hit) + { + if (s->session->sess_cert != NULL) + /* This can't really happen because get_client_hello + * has called ssl_get_new_session, which does not set + * sess_cert. */ + ssl_sess_cert_free(s->session->sess_cert); + s->session->sess_cert = ssl_sess_cert_new(); + if (s->session->sess_cert == NULL) + { + SSLerr(SSL_F_SERVER_HELLO, ERR_R_MALLOC_FAILURE); + return(-1); + } + } + /* If 'hit' is set, then s->sess_cert may be non-NULL or NULL, + * depending on whether it survived in the internal cache + * or was retrieved from an external cache. + * If it is NULL, we cannot put any useful data in it anyway, + * so we don't touch it. + */ + +#else /* That's what used to be done when cert_st and sess_cert_st were + * the same. */ + if (!hit) + { /* else add cert to session */ + CRYPTO_add(&s->cert->references,1,CRYPTO_LOCK_SSL_CERT); + if (s->session->sess_cert != NULL) + ssl_cert_free(s->session->sess_cert); + s->session->sess_cert=s->cert; + } + else /* We have a session id-cache hit, if the + * session-id has no certificate listed against + * the 'cert' structure, grab the 'old' one + * listed against the SSL connection */ + { + if (s->session->sess_cert == NULL) + { + CRYPTO_add(&s->cert->references,1, + CRYPTO_LOCK_SSL_CERT); + s->session->sess_cert=s->cert; + } + } +#endif + + if (s->cert == NULL) + { + ssl2_return_error(s,SSL2_PE_NO_CERTIFICATE); + SSLerr(SSL_F_SERVER_HELLO,SSL_R_NO_CERTIFICATE_SPECIFIED); + return(-1); + } + + if (hit) + { + *(p++)=0; /* no certificate type */ + s2n(s->version,p); /* version */ + s2n(0,p); /* cert len */ + s2n(0,p); /* ciphers len */ + } + else + { + /* EAY EAY */ + /* put certificate type */ + *(p++)=SSL2_CT_X509_CERTIFICATE; + s2n(s->version,p); /* version */ + n=i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,NULL); + s2n(n,p); /* certificate length */ + i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,&d); + n=0; + + /* lets send out the ciphers we like in the + * prefered order */ + sk= s->session->ciphers; + n=ssl_cipher_list_to_bytes(s,s->session->ciphers,d,0); + d+=n; + s2n(n,p); /* add cipher length */ + } + + /* make and send conn_id */ + s2n(SSL2_CONNECTION_ID_LENGTH,p); /* add conn_id length */ + s->s2->conn_id_length=SSL2_CONNECTION_ID_LENGTH; + if (RAND_pseudo_bytes(s->s2->conn_id,(int)s->s2->conn_id_length) <= 0) + return -1; + memcpy(d,s->s2->conn_id,SSL2_CONNECTION_ID_LENGTH); + d+=SSL2_CONNECTION_ID_LENGTH; + + s->state=SSL2_ST_SEND_SERVER_HELLO_B; + s->init_num=d-(unsigned char *)s->init_buf->data; + s->init_off=0; + } + /* SSL2_ST_SEND_SERVER_HELLO_B */ + /* If we are using TCP/IP, the performance is bad if we do 2 + * writes without a read between them. This occurs when + * Session-id reuse is used, so I will put in a buffering module + */ + if (s->hit) + { + if (!ssl_init_wbio_buffer(s,1)) return(-1); + } + + return(ssl2_do_write(s)); + } + +static int get_client_finished(SSL *s) + { + unsigned char *p; + int i, n; + unsigned long len; + + p=(unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_GET_CLIENT_FINISHED_A) + { + i=ssl2_read(s,(char *)&(p[s->init_num]),1-s->init_num); + if (i < 1-s->init_num) + return(ssl2_part_read(s,SSL_F_GET_CLIENT_FINISHED,i)); + s->init_num += i; + + if (*p != SSL2_MT_CLIENT_FINISHED) + { + if (*p != SSL2_MT_ERROR) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_FINISHED,SSL_R_READ_WRONG_PACKET_TYPE); + } + else + { + SSLerr(SSL_F_GET_CLIENT_FINISHED,SSL_R_PEER_ERROR); + /* try to read the error message */ + i=ssl2_read(s,(char *)&(p[s->init_num]),3-s->init_num); + return ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i); + } + return(-1); + } + s->state=SSL2_ST_GET_CLIENT_FINISHED_B; + } + + /* SSL2_ST_GET_CLIENT_FINISHED_B */ + if (s->s2->conn_id_length > sizeof s->s2->conn_id) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_FINISHED, ERR_R_INTERNAL_ERROR); + return -1; + } + len = 1 + (unsigned long)s->s2->conn_id_length; + n = (int)len - s->init_num; + i = ssl2_read(s,(char *)&(p[s->init_num]),n); + if (i < n) + { + return(ssl2_part_read(s,SSL_F_GET_CLIENT_FINISHED,i)); + } + if (s->msg_callback) + s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); /* CLIENT-FINISHED */ + p += 1; + if (memcmp(p,s->s2->conn_id,s->s2->conn_id_length) != 0) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_FINISHED,SSL_R_CONNECTION_ID_IS_DIFFERENT); + return(-1); + } + return(1); + } + +static int server_verify(SSL *s) + { + unsigned char *p; + + if (s->state == SSL2_ST_SEND_SERVER_VERIFY_A) + { + p=(unsigned char *)s->init_buf->data; + *(p++)=SSL2_MT_SERVER_VERIFY; + if (s->s2->challenge_length > sizeof s->s2->challenge) + { + SSLerr(SSL_F_SERVER_VERIFY, ERR_R_INTERNAL_ERROR); + return -1; + } + memcpy(p,s->s2->challenge,(unsigned int)s->s2->challenge_length); + /* p+=s->s2->challenge_length; */ + + s->state=SSL2_ST_SEND_SERVER_VERIFY_B; + s->init_num=s->s2->challenge_length+1; + s->init_off=0; + } + return(ssl2_do_write(s)); + } + +static int server_finish(SSL *s) + { + unsigned char *p; + + if (s->state == SSL2_ST_SEND_SERVER_FINISHED_A) + { + p=(unsigned char *)s->init_buf->data; + *(p++)=SSL2_MT_SERVER_FINISHED; + + if (s->session->session_id_length > sizeof s->session->session_id) + { + SSLerr(SSL_F_SERVER_FINISH, ERR_R_INTERNAL_ERROR); + return -1; + } + memcpy(p,s->session->session_id, (unsigned int)s->session->session_id_length); + /* p+=s->session->session_id_length; */ + + s->state=SSL2_ST_SEND_SERVER_FINISHED_B; + s->init_num=s->session->session_id_length+1; + s->init_off=0; + } + + /* SSL2_ST_SEND_SERVER_FINISHED_B */ + return(ssl2_do_write(s)); + } + +/* send the request and check the response */ +static int request_certificate(SSL *s) + { + const unsigned char *cp; + unsigned char *p,*p2,*buf2; + unsigned char *ccd; + int i,j,ctype,ret= -1; + unsigned long len; + X509 *x509=NULL; + STACK_OF(X509) *sk=NULL; + + ccd=s->s2->tmp.ccl; + if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_A) + { + p=(unsigned char *)s->init_buf->data; + *(p++)=SSL2_MT_REQUEST_CERTIFICATE; + *(p++)=SSL2_AT_MD5_WITH_RSA_ENCRYPTION; + if (RAND_pseudo_bytes(ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH) <= 0) + return -1; + memcpy(p,ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH); + + s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_B; + s->init_num=SSL2_MIN_CERT_CHALLENGE_LENGTH+2; + s->init_off=0; + } + + if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_B) + { + i=ssl2_do_write(s); + if (i <= 0) + { + ret=i; + goto end; + } + + s->init_num=0; + s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_C; + } + + if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_C) + { + p=(unsigned char *)s->init_buf->data; + i=ssl2_read(s,(char *)&(p[s->init_num]),6-s->init_num); /* try to read 6 octets ... */ + if (i < 3-s->init_num) /* ... but don't call ssl2_part_read now if we got at least 3 + * (probably NO-CERTIFICATE-ERROR) */ + { + ret=ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE,i); + goto end; + } + s->init_num += i; + + if ((s->init_num >= 3) && (p[0] == SSL2_MT_ERROR)) + { + n2s(p,i); + if (i != SSL2_PE_NO_CERTIFICATE) + { + /* not the error message we expected -- let ssl2_part_read handle it */ + s->init_num -= 3; + ret = ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE, 3); + goto end; + } + + if (s->msg_callback) + s->msg_callback(0, s->version, 0, p, 3, s, s->msg_callback_arg); /* ERROR */ + + /* this is the one place where we can recover from an SSL 2.0 error */ + + if (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT) + { + ssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE); + SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE); + goto end; + } + ret=1; + goto end; + } + if ((*(p++) != SSL2_MT_CLIENT_CERTIFICATE) || (s->init_num < 6)) + { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_SHORT_READ); + goto end; + } + if (s->init_num != 6) + { + SSLerr(SSL_F_REQUEST_CERTIFICATE, ERR_R_INTERNAL_ERROR); + goto end; + } + + /* ok we have a response */ + /* certificate type, there is only one right now. */ + ctype= *(p++); + if (ctype != SSL2_AT_MD5_WITH_RSA_ENCRYPTION) + { + ssl2_return_error(s,SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE); + SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_BAD_RESPONSE_ARGUMENT); + goto end; + } + n2s(p,i); s->s2->tmp.clen=i; + n2s(p,i); s->s2->tmp.rlen=i; + s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_D; + } + + /* SSL2_ST_SEND_REQUEST_CERTIFICATE_D */ + p=(unsigned char *)s->init_buf->data; + len = 6 + (unsigned long)s->s2->tmp.clen + (unsigned long)s->s2->tmp.rlen; + if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) + { + SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_MESSAGE_TOO_LONG); + goto end; + } + j = (int)len - s->init_num; + i = ssl2_read(s,(char *)&(p[s->init_num]),j); + if (i < j) + { + ret=ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE,i); + goto end; + } + if (s->msg_callback) + s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); /* CLIENT-CERTIFICATE */ + p += 6; + + cp = p; + x509=(X509 *)d2i_X509(NULL,&cp,(long)s->s2->tmp.clen); + if (x509 == NULL) + { + SSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_X509_LIB); + goto msg_end; + } + + if (((sk=sk_X509_new_null()) == NULL) || (!sk_X509_push(sk,x509))) + { + SSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_MALLOC_FAILURE); + goto msg_end; + } + + i=ssl_verify_cert_chain(s,sk); + + if (i) /* we like the packet, now check the chksum */ + { + EVP_MD_CTX ctx; + EVP_PKEY *pkey=NULL; + + EVP_MD_CTX_init(&ctx); + EVP_VerifyInit_ex(&ctx,s->ctx->rsa_md5, NULL); + EVP_VerifyUpdate(&ctx,s->s2->key_material, + s->s2->key_material_length); + EVP_VerifyUpdate(&ctx,ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH); + + i=i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,NULL); + buf2=OPENSSL_malloc((unsigned int)i); + if (buf2 == NULL) + { + SSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_MALLOC_FAILURE); + goto msg_end; + } + p2=buf2; + i=i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,&p2); + EVP_VerifyUpdate(&ctx,buf2,(unsigned int)i); + OPENSSL_free(buf2); + + pkey=X509_get_pubkey(x509); + if (pkey == NULL) goto end; + i=EVP_VerifyFinal(&ctx,cp,s->s2->tmp.rlen,pkey); + EVP_PKEY_free(pkey); + EVP_MD_CTX_cleanup(&ctx); + + if (i) + { + if (s->session->peer != NULL) + X509_free(s->session->peer); + s->session->peer=x509; + CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509); + s->session->verify_result = s->verify_result; + ret=1; + goto end; + } + else + { + SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_BAD_CHECKSUM); + goto msg_end; + } + } + else + { +msg_end: + ssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE); + } +end: + sk_X509_free(sk); + X509_free(x509); + return(ret); + } + +static int ssl_rsa_private_decrypt(CERT *c, int len, unsigned char *from, + unsigned char *to, int padding) + { + RSA *rsa; + int i; + + if ((c == NULL) || (c->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL)) + { + SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT,SSL_R_NO_PRIVATEKEY); + return(-1); + } + if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey->type != EVP_PKEY_RSA) + { + SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT,SSL_R_PUBLIC_KEY_IS_NOT_RSA); + return(-1); + } + rsa=c->pkeys[SSL_PKEY_RSA_ENC].privatekey->pkey.rsa; + + /* we have the public key */ + i=RSA_private_decrypt(len,from,to,rsa,padding); + if (i < 0) + SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT,ERR_R_RSA_LIB); + return(i); + } +#else /* !OPENSSL_NO_SSL2 */ + +# if PEDANTIC +static void *dummy=&dummy; +# endif + +#endif diff --git a/ssl/s3_both.c b/ssl/s3_both.c new file mode 100644 index 000000000000..2ecfbb77cb17 --- /dev/null +++ b/ssl/s3_both.c @@ -0,0 +1,622 @@ +/* ssl/s3_both.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * ECC cipher suite support in OpenSSL originally developed by + * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. + */ + +#include <limits.h> +#include <string.h> +#include <stdio.h> +#include "ssl_locl.h" +#include <openssl/buffer.h> +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/evp.h> +#include <openssl/x509.h> + +/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */ +int ssl3_do_write(SSL *s, int type) + { + int ret; + + ret=ssl3_write_bytes(s,type,&s->init_buf->data[s->init_off], + s->init_num); + if (ret < 0) return(-1); + if (type == SSL3_RT_HANDSHAKE) + /* should not be done for 'Hello Request's, but in that case + * we'll ignore the result anyway */ + ssl3_finish_mac(s,(unsigned char *)&s->init_buf->data[s->init_off],ret); + + if (ret == s->init_num) + { + if (s->msg_callback) + s->msg_callback(1, s->version, type, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg); + return(1); + } + s->init_off+=ret; + s->init_num-=ret; + return(0); + } + +int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen) + { + unsigned char *p,*d; + int i; + unsigned long l; + + if (s->state == a) + { + d=(unsigned char *)s->init_buf->data; + p= &(d[4]); + + i=s->method->ssl3_enc->final_finish_mac(s, + &(s->s3->finish_dgst1), + &(s->s3->finish_dgst2), + sender,slen,s->s3->tmp.finish_md); + s->s3->tmp.finish_md_len = i; + memcpy(p, s->s3->tmp.finish_md, i); + p+=i; + l=i; + +#ifdef OPENSSL_SYS_WIN16 + /* MSVC 1.5 does not clear the top bytes of the word unless + * I do this. + */ + l&=0xffff; +#endif + + *(d++)=SSL3_MT_FINISHED; + l2n3(l,d); + s->init_num=(int)l+4; + s->init_off=0; + + s->state=b; + } + + /* SSL3_ST_SEND_xxxxxx_HELLO_B */ + return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); + } + +int ssl3_get_finished(SSL *s, int a, int b) + { + int al,i,ok; + long n; + unsigned char *p; + + /* the mac has already been generated when we received the + * change cipher spec message and is in s->s3->tmp.peer_finish_md + */ + + n=s->method->ssl_get_message(s, + a, + b, + SSL3_MT_FINISHED, + 64, /* should actually be 36+4 :-) */ + &ok); + + if (!ok) return((int)n); + + /* If this occurs, we have missed a message */ + if (!s->s3->change_cipher_spec) + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS); + goto f_err; + } + s->s3->change_cipher_spec=0; + + p = (unsigned char *)s->init_msg; + i = s->s3->tmp.peer_finish_md_len; + + if (i != n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH); + goto f_err; + } + + if (memcmp(p, s->s3->tmp.peer_finish_md, i) != 0) + { + al=SSL_AD_DECRYPT_ERROR; + SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED); + goto f_err; + } + + return(1); +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); + return(0); + } + +/* for these 2 messages, we need to + * ssl->enc_read_ctx re-init + * ssl->s3->read_sequence zero + * ssl->s3->read_mac_secret re-init + * ssl->session->read_sym_enc assign + * ssl->session->read_compression assign + * ssl->session->read_hash assign + */ +int ssl3_send_change_cipher_spec(SSL *s, int a, int b) + { + unsigned char *p; + + if (s->state == a) + { + p=(unsigned char *)s->init_buf->data; + *p=SSL3_MT_CCS; + s->init_num=1; + s->init_off=0; + + s->state=b; + } + + /* SSL3_ST_CW_CHANGE_B */ + return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC)); + } + +unsigned long ssl3_output_cert_chain(SSL *s, X509 *x) + { + unsigned char *p; + int n,i; + unsigned long l=7; + BUF_MEM *buf; + X509_STORE_CTX xs_ctx; + X509_OBJECT obj; + + int no_chain; + + if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || s->ctx->extra_certs) + no_chain = 1; + else + no_chain = 0; + + /* TLSv1 sends a chain with nothing in it, instead of an alert */ + buf=s->init_buf; + if (!BUF_MEM_grow_clean(buf,10)) + { + SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); + return(0); + } + if (x != NULL) + { + if(!no_chain && !X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL)) + { + SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB); + return(0); + } + + for (;;) + { + n=i2d_X509(x,NULL); + if (!BUF_MEM_grow_clean(buf,(int)(n+l+3))) + { + SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); + return(0); + } + p=(unsigned char *)&(buf->data[l]); + l2n3(n,p); + i2d_X509(x,&p); + l+=n+3; + + if (no_chain) + break; + + if (X509_NAME_cmp(X509_get_subject_name(x), + X509_get_issuer_name(x)) == 0) break; + + i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509, + X509_get_issuer_name(x),&obj); + if (i <= 0) break; + x=obj.data.x509; + /* Count is one too high since the X509_STORE_get uped the + * ref count */ + X509_free(x); + } + if (!no_chain) + X509_STORE_CTX_cleanup(&xs_ctx); + } + + /* Thawte special :-) */ + if (s->ctx->extra_certs != NULL) + for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++) + { + x=sk_X509_value(s->ctx->extra_certs,i); + n=i2d_X509(x,NULL); + if (!BUF_MEM_grow_clean(buf,(int)(n+l+3))) + { + SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB); + return(0); + } + p=(unsigned char *)&(buf->data[l]); + l2n3(n,p); + i2d_X509(x,&p); + l+=n+3; + } + + l-=7; + p=(unsigned char *)&(buf->data[4]); + l2n3(l,p); + l+=3; + p=(unsigned char *)&(buf->data[0]); + *(p++)=SSL3_MT_CERTIFICATE; + l2n3(l,p); + l+=4; + return(l); + } + +/* Obtain handshake message of message type 'mt' (any if mt == -1), + * maximum acceptable body length 'max'. + * The first four bytes (msg_type and length) are read in state 'st1', + * the body is read in state 'stn'. + */ +long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok) + { + unsigned char *p; + unsigned long l; + long n; + int i,al; + + if (s->s3->tmp.reuse_message) + { + s->s3->tmp.reuse_message=0; + if ((mt >= 0) && (s->s3->tmp.message_type != mt)) + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE); + goto f_err; + } + *ok=1; + s->init_msg = s->init_buf->data + 4; + s->init_num = (int)s->s3->tmp.message_size; + return s->init_num; + } + + p=(unsigned char *)s->init_buf->data; + + if (s->state == st1) /* s->init_num < 4 */ + { + int skip_message; + + do + { + while (s->init_num < 4) + { + i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE, + &p[s->init_num],4 - s->init_num, 0); + if (i <= 0) + { + s->rwstate=SSL_READING; + *ok = 0; + return i; + } + s->init_num+=i; + } + + skip_message = 0; + if (!s->server) + if (p[0] == SSL3_MT_HELLO_REQUEST) + /* The server may always send 'Hello Request' messages -- + * we are doing a handshake anyway now, so ignore them + * if their format is correct. Does not count for + * 'Finished' MAC. */ + if (p[1] == 0 && p[2] == 0 &&p[3] == 0) + { + s->init_num = 0; + skip_message = 1; + + if (s->msg_callback) + s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, p, 4, s, s->msg_callback_arg); + } + } + while (skip_message); + + /* s->init_num == 4 */ + + if ((mt >= 0) && (*p != mt)) + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE); + goto f_err; + } + if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) && + (st1 == SSL3_ST_SR_CERT_A) && + (stn == SSL3_ST_SR_CERT_B)) + { + /* At this point we have got an MS SGC second client + * hello (maybe we should always allow the client to + * start a new handshake?). We need to restart the mac. + * Don't increment {num,total}_renegotiations because + * we have not completed the handshake. */ + ssl3_init_finished_mac(s); + } + + s->s3->tmp.message_type= *(p++); + + n2l3(p,l); + if (l > (unsigned long)max) + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE); + goto f_err; + } + if (l > (INT_MAX-4)) /* BUF_MEM_grow takes an 'int' parameter */ + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE); + goto f_err; + } + if (l && !BUF_MEM_grow_clean(s->init_buf,(int)l+4)) + { + SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB); + goto err; + } + s->s3->tmp.message_size=l; + s->state=stn; + + s->init_msg = s->init_buf->data + 4; + s->init_num = 0; + } + + /* next state (stn) */ + p = s->init_msg; + n = s->s3->tmp.message_size - s->init_num; + while (n > 0) + { + i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0); + if (i <= 0) + { + s->rwstate=SSL_READING; + *ok = 0; + return i; + } + s->init_num += i; + n -= i; + } + ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4); + if (s->msg_callback) + s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, (size_t)s->init_num + 4, s, s->msg_callback_arg); + *ok=1; + return s->init_num; +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); +err: + *ok=0; + return(-1); + } + +int ssl_cert_type(X509 *x, EVP_PKEY *pkey) + { + EVP_PKEY *pk; + int ret= -1,i; + + if (pkey == NULL) + pk=X509_get_pubkey(x); + else + pk=pkey; + if (pk == NULL) goto err; + + i=pk->type; + if (i == EVP_PKEY_RSA) + { + ret=SSL_PKEY_RSA_ENC; + } + else if (i == EVP_PKEY_DSA) + { + ret=SSL_PKEY_DSA_SIGN; + } +#ifndef OPENSSL_NO_EC + else if (i == EVP_PKEY_EC) + { + ret = SSL_PKEY_ECC; + } +#endif + +err: + if(!pkey) EVP_PKEY_free(pk); + return(ret); + } + +int ssl_verify_alarm_type(long type) + { + int al; + + switch(type) + { + case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: + case X509_V_ERR_UNABLE_TO_GET_CRL: + case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER: + al=SSL_AD_UNKNOWN_CA; + break; + case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE: + case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE: + case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY: + case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: + case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: + case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD: + case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD: + case X509_V_ERR_CERT_NOT_YET_VALID: + case X509_V_ERR_CRL_NOT_YET_VALID: + case X509_V_ERR_CERT_UNTRUSTED: + case X509_V_ERR_CERT_REJECTED: + al=SSL_AD_BAD_CERTIFICATE; + break; + case X509_V_ERR_CERT_SIGNATURE_FAILURE: + case X509_V_ERR_CRL_SIGNATURE_FAILURE: + al=SSL_AD_DECRYPT_ERROR; + break; + case X509_V_ERR_CERT_HAS_EXPIRED: + case X509_V_ERR_CRL_HAS_EXPIRED: + al=SSL_AD_CERTIFICATE_EXPIRED; + break; + case X509_V_ERR_CERT_REVOKED: + al=SSL_AD_CERTIFICATE_REVOKED; + break; + case X509_V_ERR_OUT_OF_MEM: + al=SSL_AD_INTERNAL_ERROR; + break; + case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: + case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN: + case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY: + case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE: + case X509_V_ERR_CERT_CHAIN_TOO_LONG: + case X509_V_ERR_PATH_LENGTH_EXCEEDED: + case X509_V_ERR_INVALID_CA: + al=SSL_AD_UNKNOWN_CA; + break; + case X509_V_ERR_APPLICATION_VERIFICATION: + al=SSL_AD_HANDSHAKE_FAILURE; + break; + case X509_V_ERR_INVALID_PURPOSE: + al=SSL_AD_UNSUPPORTED_CERTIFICATE; + break; + default: + al=SSL_AD_CERTIFICATE_UNKNOWN; + break; + } + return(al); + } + +int ssl3_setup_buffers(SSL *s) + { + unsigned char *p; + unsigned int extra; + size_t len; + + if (s->s3->rbuf.buf == NULL) + { + if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER) + extra=SSL3_RT_MAX_EXTRA; + else + extra=0; + len = SSL3_RT_MAX_PACKET_SIZE + extra; + if ((p=OPENSSL_malloc(len)) == NULL) + goto err; + s->s3->rbuf.buf = p; + s->s3->rbuf.len = len; + } + + if (s->s3->wbuf.buf == NULL) + { + len = SSL3_RT_MAX_PACKET_SIZE; + len += SSL3_RT_HEADER_LENGTH + 256; /* extra space for empty fragment */ + if ((p=OPENSSL_malloc(len)) == NULL) + goto err; + s->s3->wbuf.buf = p; + s->s3->wbuf.len = len; + } + s->packet= &(s->s3->rbuf.buf[0]); + return(1); +err: + SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE); + return(0); + } diff --git a/ssl/s3_clnt.c b/ssl/s3_clnt.c new file mode 100644 index 000000000000..278be82294cd --- /dev/null +++ b/ssl/s3_clnt.c @@ -0,0 +1,2458 @@ +/* ssl/s3_clnt.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * + * Portions of the attached software ("Contribution") are developed by + * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. + * + * The Contribution is licensed pursuant to the OpenSSL open source + * license provided above. + * + * ECC cipher suite support in OpenSSL originally written by + * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories. + * + */ + +#include <stdio.h> +#include "ssl_locl.h" +#include "kssl_lcl.h" +#include <openssl/buffer.h> +#include <openssl/rand.h> +#include <openssl/objects.h> +#include <openssl/evp.h> +#include <openssl/md5.h> +#ifndef OPENSSL_NO_DH +#include <openssl/dh.h> +#endif +#include <openssl/bn.h> + +static SSL_METHOD *ssl3_get_client_method(int ver); +static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b); + +#ifndef OPENSSL_NO_ECDH +static int curve_id2nid(int curve_id); +int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs); +#endif + +static SSL_METHOD *ssl3_get_client_method(int ver) + { + if (ver == SSL3_VERSION) + return(SSLv3_client_method()); + else + return(NULL); + } + +IMPLEMENT_ssl3_meth_func(SSLv3_client_method, + ssl_undefined_function, + ssl3_connect, + ssl3_get_client_method) + +int ssl3_connect(SSL *s) + { + BUF_MEM *buf=NULL; + unsigned long Time=(unsigned long)time(NULL),l; + long num1; + void (*cb)(const SSL *ssl,int type,int val)=NULL; + int ret= -1; + int new_state,state,skip=0;; + + RAND_add(&Time,sizeof(Time),0); + ERR_clear_error(); + clear_sys_error(); + + if (s->info_callback != NULL) + cb=s->info_callback; + else if (s->ctx->info_callback != NULL) + cb=s->ctx->info_callback; + + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); + + for (;;) + { + state=s->state; + + switch(s->state) + { + case SSL_ST_RENEGOTIATE: + s->new_session=1; + s->state=SSL_ST_CONNECT; + s->ctx->stats.sess_connect_renegotiate++; + /* break */ + case SSL_ST_BEFORE: + case SSL_ST_CONNECT: + case SSL_ST_BEFORE|SSL_ST_CONNECT: + case SSL_ST_OK|SSL_ST_CONNECT: + + s->server=0; + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); + + if ((s->version & 0xff00 ) != 0x0300) + { + SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR); + ret = -1; + goto end; + } + + /* s->version=SSL3_VERSION; */ + s->type=SSL_ST_CONNECT; + + if (s->init_buf == NULL) + { + if ((buf=BUF_MEM_new()) == NULL) + { + ret= -1; + goto end; + } + if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH)) + { + ret= -1; + goto end; + } + s->init_buf=buf; + buf=NULL; + } + + if (!ssl3_setup_buffers(s)) { ret= -1; goto end; } + + /* setup buffing BIO */ + if (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; } + + /* don't push the buffering BIO quite yet */ + + ssl3_init_finished_mac(s); + + s->state=SSL3_ST_CW_CLNT_HELLO_A; + s->ctx->stats.sess_connect++; + s->init_num=0; + break; + + case SSL3_ST_CW_CLNT_HELLO_A: + case SSL3_ST_CW_CLNT_HELLO_B: + + s->shutdown=0; + ret=ssl3_client_hello(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_CR_SRVR_HELLO_A; + s->init_num=0; + + /* turn on buffering for the next lot of output */ + if (s->bbio != s->wbio) + s->wbio=BIO_push(s->bbio,s->wbio); + + break; + + case SSL3_ST_CR_SRVR_HELLO_A: + case SSL3_ST_CR_SRVR_HELLO_B: + ret=ssl3_get_server_hello(s); + if (ret <= 0) goto end; + if (s->hit) + s->state=SSL3_ST_CR_FINISHED_A; + else + s->state=SSL3_ST_CR_CERT_A; + s->init_num=0; + break; + + case SSL3_ST_CR_CERT_A: + case SSL3_ST_CR_CERT_B: + /* Check if it is anon DH/ECDH */ + if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)) + { + ret=ssl3_get_server_certificate(s); + if (ret <= 0) goto end; + } + else + skip=1; + s->state=SSL3_ST_CR_KEY_EXCH_A; + s->init_num=0; + break; + + case SSL3_ST_CR_KEY_EXCH_A: + case SSL3_ST_CR_KEY_EXCH_B: + ret=ssl3_get_key_exchange(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_CR_CERT_REQ_A; + s->init_num=0; + + /* at this point we check that we have the + * required stuff from the server */ + if (!ssl3_check_cert_and_algorithm(s)) + { + ret= -1; + goto end; + } + break; + + case SSL3_ST_CR_CERT_REQ_A: + case SSL3_ST_CR_CERT_REQ_B: + ret=ssl3_get_certificate_request(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_CR_SRVR_DONE_A; + s->init_num=0; + break; + + case SSL3_ST_CR_SRVR_DONE_A: + case SSL3_ST_CR_SRVR_DONE_B: + ret=ssl3_get_server_done(s); + if (ret <= 0) goto end; + if (s->s3->tmp.cert_req) + s->state=SSL3_ST_CW_CERT_A; + else + s->state=SSL3_ST_CW_KEY_EXCH_A; + s->init_num=0; + + break; + + case SSL3_ST_CW_CERT_A: + case SSL3_ST_CW_CERT_B: + case SSL3_ST_CW_CERT_C: + case SSL3_ST_CW_CERT_D: + ret=ssl3_send_client_certificate(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_CW_KEY_EXCH_A; + s->init_num=0; + break; + + case SSL3_ST_CW_KEY_EXCH_A: + case SSL3_ST_CW_KEY_EXCH_B: + ret=ssl3_send_client_key_exchange(s); + if (ret <= 0) goto end; + l=s->s3->tmp.new_cipher->algorithms; + /* EAY EAY EAY need to check for DH fix cert + * sent back */ + /* For TLS, cert_req is set to 2, so a cert chain + * of nothing is sent, but no verify packet is sent */ + /* XXX: For now, we do not support client + * authentication in ECDH cipher suites with + * ECDH (rather than ECDSA) certificates. + * We need to skip the certificate verify + * message when client's ECDH public key is sent + * inside the client certificate. + */ + if (s->s3->tmp.cert_req == 1) + { + s->state=SSL3_ST_CW_CERT_VRFY_A; + } + else + { + s->state=SSL3_ST_CW_CHANGE_A; + s->s3->change_cipher_spec=0; + } + + s->init_num=0; + break; + + case SSL3_ST_CW_CERT_VRFY_A: + case SSL3_ST_CW_CERT_VRFY_B: + ret=ssl3_send_client_verify(s); + if (ret <= 0) goto end; + s->state=SSL3_ST_CW_CHANGE_A; + s->init_num=0; + s->s3->change_cipher_spec=0; + break; + + case SSL3_ST_CW_CHANGE_A: + case SSL3_ST_CW_CHANGE_B: + ret=ssl3_send_change_cipher_spec(s, + SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B); + if (ret <= 0) goto end; + s->state=SSL3_ST_CW_FINISHED_A; + s->init_num=0; + + s->session->cipher=s->s3->tmp.new_cipher; +#ifdef OPENSSL_NO_COMP + s->session->compress_meth=0; +#else + if (s->s3->tmp.new_compression == NULL) + s->session->compress_meth=0; + else + s->session->compress_meth= + s->s3->tmp.new_compression->id; +#endif + if (!s->method->ssl3_enc->setup_key_block(s)) + { + ret= -1; + goto end; + } + + if (!s->method->ssl3_enc->change_cipher_state(s, + SSL3_CHANGE_CIPHER_CLIENT_WRITE)) + { + ret= -1; + goto end; + } + + break; + + case SSL3_ST_CW_FINISHED_A: + case SSL3_ST_CW_FINISHED_B: + ret=ssl3_send_finished(s, + SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B, + s->method->ssl3_enc->client_finished_label, + s->method->ssl3_enc->client_finished_label_len); + if (ret <= 0) goto end; + s->state=SSL3_ST_CW_FLUSH; + + /* clear flags */ + s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER; + if (s->hit) + { + s->s3->tmp.next_state=SSL_ST_OK; + if (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED) + { + s->state=SSL_ST_OK; + s->s3->flags|=SSL3_FLAGS_POP_BUFFER; + s->s3->delay_buf_pop_ret=0; + } + } + else + { + s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A; + } + s->init_num=0; + break; + + case SSL3_ST_CR_FINISHED_A: + case SSL3_ST_CR_FINISHED_B: + + ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A, + SSL3_ST_CR_FINISHED_B); + if (ret <= 0) goto end; + + if (s->hit) + s->state=SSL3_ST_CW_CHANGE_A; + else + s->state=SSL_ST_OK; + s->init_num=0; + break; + + case SSL3_ST_CW_FLUSH: + /* number of bytes to be flushed */ + num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL); + if (num1 > 0) + { + s->rwstate=SSL_WRITING; + num1=BIO_flush(s->wbio); + if (num1 <= 0) { ret= -1; goto end; } + s->rwstate=SSL_NOTHING; + } + + s->state=s->s3->tmp.next_state; + break; + + case SSL_ST_OK: + /* clean a few things up */ + ssl3_cleanup_key_block(s); + + if (s->init_buf != NULL) + { + BUF_MEM_free(s->init_buf); + s->init_buf=NULL; + } + + /* If we are not 'joining' the last two packets, + * remove the buffering now */ + if (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER)) + ssl_free_wbio_buffer(s); + /* else do it later in ssl3_write */ + + s->init_num=0; + s->new_session=0; + + ssl_update_cache(s,SSL_SESS_CACHE_CLIENT); + if (s->hit) s->ctx->stats.sess_hit++; + + ret=1; + /* s->server=0; */ + s->handshake_func=ssl3_connect; + s->ctx->stats.sess_connect_good++; + + if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1); + + goto end; + /* break; */ + + default: + SSLerr(SSL_F_SSL3_CONNECT,SSL_R_UNKNOWN_STATE); + ret= -1; + goto end; + /* break; */ + } + + /* did we do anything */ + if (!s->s3->tmp.reuse_message && !skip) + { + if (s->debug) + { + if ((ret=BIO_flush(s->wbio)) <= 0) + goto end; + } + + if ((cb != NULL) && (s->state != state)) + { + new_state=s->state; + s->state=state; + cb(s,SSL_CB_CONNECT_LOOP,1); + s->state=new_state; + } + } + skip=0; + } +end: + s->in_handshake--; + if (buf != NULL) + BUF_MEM_free(buf); + if (cb != NULL) + cb(s,SSL_CB_CONNECT_EXIT,ret); + return(ret); + } + + +int ssl3_client_hello(SSL *s) + { + unsigned char *buf; + unsigned char *p,*d; + int i; + unsigned long Time,l; +#ifndef OPENSSL_NO_COMP + int j; + SSL_COMP *comp; +#endif + + buf=(unsigned char *)s->init_buf->data; + if (s->state == SSL3_ST_CW_CLNT_HELLO_A) + { + if ((s->session == NULL) || + (s->session->ssl_version != s->version) || + (s->session->not_resumable)) + { + if (!ssl_get_new_session(s,0)) + goto err; + } + /* else use the pre-loaded session */ + + p=s->s3->client_random; + Time=(unsigned long)time(NULL); /* Time */ + l2n(Time,p); + if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0) + goto err; + + /* Do the message type and length last */ + d=p= &(buf[4]); + + *(p++)=s->version>>8; + *(p++)=s->version&0xff; + s->client_version=s->version; + + /* Random stuff */ + memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE); + p+=SSL3_RANDOM_SIZE; + + /* Session ID */ + if (s->new_session) + i=0; + else + i=s->session->session_id_length; + *(p++)=i; + if (i != 0) + { + if (i > (int)sizeof(s->session->session_id)) + { + SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR); + goto err; + } + memcpy(p,s->session->session_id,i); + p+=i; + } + + /* Ciphers supported */ + i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),0); + if (i == 0) + { + SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE); + goto err; + } + s2n(i,p); + p+=i; + + /* COMPRESSION */ +#ifdef OPENSSL_NO_COMP + *(p++)=1; +#else + if (s->ctx->comp_methods == NULL) + j=0; + else + j=sk_SSL_COMP_num(s->ctx->comp_methods); + *(p++)=1+j; + for (i=0; i<j; i++) + { + comp=sk_SSL_COMP_value(s->ctx->comp_methods,i); + *(p++)=comp->id; + } +#endif + *(p++)=0; /* Add the NULL method */ + + l=(p-d); + d=buf; + *(d++)=SSL3_MT_CLIENT_HELLO; + l2n3(l,d); + + s->state=SSL3_ST_CW_CLNT_HELLO_B; + /* number of bytes to write */ + s->init_num=p-buf; + s->init_off=0; + } + + /* SSL3_ST_CW_CLNT_HELLO_B */ + return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); +err: + return(-1); + } + +int ssl3_get_server_hello(SSL *s) + { + STACK_OF(SSL_CIPHER) *sk; + SSL_CIPHER *c; + unsigned char *p,*d; + int i,al,ok; + unsigned int j; + long n; +#ifndef OPENSSL_NO_COMP + SSL_COMP *comp; +#endif + + n=s->method->ssl_get_message(s, + SSL3_ST_CR_SRVR_HELLO_A, + SSL3_ST_CR_SRVR_HELLO_B, + -1, + 300, /* ?? */ + &ok); + + if (!ok) return((int)n); + + if ( SSL_version(s) == DTLS1_VERSION) + { + if ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST) + { + if ( s->d1->send_cookie == 0) + { + s->s3->tmp.reuse_message = 1; + return 1; + } + else /* already sent a cookie */ + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE); + goto f_err; + } + } + } + + if ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO) + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE); + goto f_err; + } + + d=p=(unsigned char *)s->init_msg; + + if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff))) + { + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION); + s->version=(s->version&0xff00)|p[1]; + al=SSL_AD_PROTOCOL_VERSION; + goto f_err; + } + p+=2; + + /* load the server hello data */ + /* load the server random */ + memcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE); + p+=SSL3_RANDOM_SIZE; + + /* get the session-id */ + j= *(p++); + + if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE)) + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG); + goto f_err; + } + + if (j != 0 && j == s->session->session_id_length + && memcmp(p,s->session->session_id,j) == 0) + { + if(s->sid_ctx_length != s->session->sid_ctx_length + || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length)) + { + /* actually a client application bug */ + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT); + goto f_err; + } + s->hit=1; + } + else /* a miss or crap from the other end */ + { + /* If we were trying for session-id reuse, make a new + * SSL_SESSION so we don't stuff up other people */ + s->hit=0; + if (s->session->session_id_length > 0) + { + if (!ssl_get_new_session(s,0)) + { + al=SSL_AD_INTERNAL_ERROR; + goto f_err; + } + } + s->session->session_id_length=j; + memcpy(s->session->session_id,p,j); /* j could be 0 */ + } + p+=j; + c=ssl_get_cipher_by_char(s,p); + if (c == NULL) + { + /* unknown cipher */ + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED); + goto f_err; + } + p+=ssl_put_cipher_by_char(s,NULL,NULL); + + sk=ssl_get_ciphers_by_id(s); + i=sk_SSL_CIPHER_find(sk,c); + if (i < 0) + { + /* we did not say we would use this cipher */ + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED); + goto f_err; + } + + /* Depending on the session caching (internal/external), the cipher + and/or cipher_id values may not be set. Make sure that + cipher_id is set and use it for comparison. */ + if (s->session->cipher) + s->session->cipher_id = s->session->cipher->id; + if (s->hit && (s->session->cipher_id != c->id)) + { + if (!(s->options & + SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG)) + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED); + goto f_err; + } + } + s->s3->tmp.new_cipher=c; + + /* lets get the compression algorithm */ + /* COMPRESSION */ +#ifdef OPENSSL_NO_COMP + if (*(p++) != 0) + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM); + goto f_err; + } +#else + j= *(p++); + if (j == 0) + comp=NULL; + else + comp=ssl3_comp_find(s->ctx->comp_methods,j); + + if ((j != 0) && (comp == NULL)) + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM); + goto f_err; + } + else + { + s->s3->tmp.new_compression=comp; + } +#endif + + if (p != (d+n)) + { + /* wrong packet length */ + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH); + goto err; + } + + return(1); +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); +err: + return(-1); + } + +int ssl3_get_server_certificate(SSL *s) + { + int al,i,ok,ret= -1; + unsigned long n,nc,llen,l; + X509 *x=NULL; + const unsigned char *q,*p; + unsigned char *d; + STACK_OF(X509) *sk=NULL; + SESS_CERT *sc; + EVP_PKEY *pkey=NULL; + int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */ + + n=s->method->ssl_get_message(s, + SSL3_ST_CR_CERT_A, + SSL3_ST_CR_CERT_B, + -1, + s->max_cert_list, + &ok); + + if (!ok) return((int)n); + + if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE) + { + s->s3->tmp.reuse_message=1; + return(1); + } + + if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE) + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE); + goto f_err; + } + p=d=(unsigned char *)s->init_msg; + + if ((sk=sk_X509_new_null()) == NULL) + { + SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE); + goto err; + } + + n2l3(p,llen); + if (llen+3 != n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH); + goto f_err; + } + for (nc=0; nc<llen; ) + { + n2l3(p,l); + if ((l+nc+3) > llen) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH); + goto f_err; + } + + q=p; + x=d2i_X509(NULL,&q,l); + if (x == NULL) + { + al=SSL_AD_BAD_CERTIFICATE; + SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB); + goto f_err; + } + if (q != (p+l)) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH); + goto f_err; + } + if (!sk_X509_push(sk,x)) + { + SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE); + goto err; + } + x=NULL; + nc+=l+3; + p=q; + } + + i=ssl_verify_cert_chain(s,sk); + if ((s->verify_mode != SSL_VERIFY_NONE) && (!i) +#ifndef OPENSSL_NO_KRB5 + && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK)) + != (SSL_aKRB5|SSL_kKRB5) +#endif /* OPENSSL_NO_KRB5 */ + ) + { + al=ssl_verify_alarm_type(s->verify_result); + SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED); + goto f_err; + } + ERR_clear_error(); /* but we keep s->verify_result */ + + sc=ssl_sess_cert_new(); + if (sc == NULL) goto err; + + if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert); + s->session->sess_cert=sc; + + sc->cert_chain=sk; + /* Inconsistency alert: cert_chain does include the peer's + * certificate, which we don't include in s3_srvr.c */ + x=sk_X509_value(sk,0); + sk=NULL; + /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/ + + pkey=X509_get_pubkey(x); + + /* VRS: allow null cert if auth == KRB5 */ + need_cert = ((s->s3->tmp.new_cipher->algorithms + & (SSL_MKEY_MASK|SSL_AUTH_MASK)) + == (SSL_aKRB5|SSL_kKRB5))? 0: 1; + +#ifdef KSSL_DEBUG + printf("pkey,x = %p, %p\n", pkey,x); + printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey)); + printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name, + s->s3->tmp.new_cipher->algorithms, need_cert); +#endif /* KSSL_DEBUG */ + + if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey))) + { + x=NULL; + al=SSL3_AL_FATAL; + SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, + SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS); + goto f_err; + } + + i=ssl_cert_type(x,pkey); + if (need_cert && i < 0) + { + x=NULL; + al=SSL3_AL_FATAL; + SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE, + SSL_R_UNKNOWN_CERTIFICATE_TYPE); + goto f_err; + } + + if (need_cert) + { + sc->peer_cert_type=i; + CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509); + /* Why would the following ever happen? + * We just created sc a couple of lines ago. */ + if (sc->peer_pkeys[i].x509 != NULL) + X509_free(sc->peer_pkeys[i].x509); + sc->peer_pkeys[i].x509=x; + sc->peer_key= &(sc->peer_pkeys[i]); + + if (s->session->peer != NULL) + X509_free(s->session->peer); + CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509); + s->session->peer=x; + } + else + { + sc->peer_cert_type=i; + sc->peer_key= NULL; + + if (s->session->peer != NULL) + X509_free(s->session->peer); + s->session->peer=NULL; + } + s->session->verify_result = s->verify_result; + + x=NULL; + ret=1; + + if (0) + { +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); + } +err: + EVP_PKEY_free(pkey); + X509_free(x); + sk_X509_pop_free(sk,X509_free); + return(ret); + } + +int ssl3_get_key_exchange(SSL *s) + { +#ifndef OPENSSL_NO_RSA + unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2]; +#endif + EVP_MD_CTX md_ctx; + unsigned char *param,*p; + int al,i,j,param_len,ok; + long n,alg; + EVP_PKEY *pkey=NULL; +#ifndef OPENSSL_NO_RSA + RSA *rsa=NULL; +#endif +#ifndef OPENSSL_NO_DH + DH *dh=NULL; +#endif +#ifndef OPENSSL_NO_ECDH + EC_KEY *ecdh = NULL; + BN_CTX *bn_ctx = NULL; + EC_POINT *srvr_ecpoint = NULL; + int curve_nid = 0; + int encoded_pt_len = 0; +#endif + + /* use same message size as in ssl3_get_certificate_request() + * as ServerKeyExchange message may be skipped */ + n=s->method->ssl_get_message(s, + SSL3_ST_CR_KEY_EXCH_A, + SSL3_ST_CR_KEY_EXCH_B, + -1, + s->max_cert_list, + &ok); + + if (!ok) return((int)n); + + if (s->s3->tmp.message_type != SSL3_MT_SERVER_KEY_EXCHANGE) + { + s->s3->tmp.reuse_message=1; + return(1); + } + + param=p=(unsigned char *)s->init_msg; + + if (s->session->sess_cert != NULL) + { +#ifndef OPENSSL_NO_RSA + if (s->session->sess_cert->peer_rsa_tmp != NULL) + { + RSA_free(s->session->sess_cert->peer_rsa_tmp); + s->session->sess_cert->peer_rsa_tmp=NULL; + } +#endif +#ifndef OPENSSL_NO_DH + if (s->session->sess_cert->peer_dh_tmp) + { + DH_free(s->session->sess_cert->peer_dh_tmp); + s->session->sess_cert->peer_dh_tmp=NULL; + } +#endif +#ifndef OPENSSL_NO_ECDH + if (s->session->sess_cert->peer_ecdh_tmp) + { + EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp); + s->session->sess_cert->peer_ecdh_tmp=NULL; + } +#endif + } + else + { + s->session->sess_cert=ssl_sess_cert_new(); + } + + param_len=0; + alg=s->s3->tmp.new_cipher->algorithms; + EVP_MD_CTX_init(&md_ctx); + +#ifndef OPENSSL_NO_RSA + if (alg & SSL_kRSA) + { + if ((rsa=RSA_new()) == NULL) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE); + goto err; + } + n2s(p,i); + param_len=i+2; + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_MODULUS_LENGTH); + goto f_err; + } + if (!(rsa->n=BN_bin2bn(p,i,rsa->n))) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); + goto err; + } + p+=i; + + n2s(p,i); + param_len+=i+2; + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_E_LENGTH); + goto f_err; + } + if (!(rsa->e=BN_bin2bn(p,i,rsa->e))) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); + goto err; + } + p+=i; + n-=param_len; + + /* this should be because we are using an export cipher */ + if (alg & SSL_aRSA) + pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); + else + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); + goto err; + } + s->session->sess_cert->peer_rsa_tmp=rsa; + rsa=NULL; + } +#else /* OPENSSL_NO_RSA */ + if (0) + ; +#endif +#ifndef OPENSSL_NO_DH + else if (alg & SSL_kEDH) + { + if ((dh=DH_new()) == NULL) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_DH_LIB); + goto err; + } + n2s(p,i); + param_len=i+2; + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_P_LENGTH); + goto f_err; + } + if (!(dh->p=BN_bin2bn(p,i,NULL))) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); + goto err; + } + p+=i; + + n2s(p,i); + param_len+=i+2; + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_G_LENGTH); + goto f_err; + } + if (!(dh->g=BN_bin2bn(p,i,NULL))) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); + goto err; + } + p+=i; + + n2s(p,i); + param_len+=i+2; + if (param_len > n) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_DH_PUB_KEY_LENGTH); + goto f_err; + } + if (!(dh->pub_key=BN_bin2bn(p,i,NULL))) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_BN_LIB); + goto err; + } + p+=i; + n-=param_len; + +#ifndef OPENSSL_NO_RSA + if (alg & SSL_aRSA) + pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); +#else + if (0) + ; +#endif +#ifndef OPENSSL_NO_DSA + else if (alg & SSL_aDSS) + pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509); +#endif + /* else anonymous DH, so no certificate or pkey. */ + + s->session->sess_cert->peer_dh_tmp=dh; + dh=NULL; + } + else if ((alg & SSL_kDHr) || (alg & SSL_kDHd)) + { + al=SSL_AD_ILLEGAL_PARAMETER; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER); + goto f_err; + } +#endif /* !OPENSSL_NO_DH */ + +#ifndef OPENSSL_NO_ECDH + else if (alg & SSL_kECDHE) + { + EC_GROUP *ngroup; + const EC_GROUP *group; + + if ((ecdh=EC_KEY_new()) == NULL) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE); + goto err; + } + + /* Extract elliptic curve parameters and the + * server's ephemeral ECDH public key. + * Keep accumulating lengths of various components in + * param_len and make sure it never exceeds n. + */ + + /* XXX: For now we only support named (not generic) curves + * and the ECParameters in this case is just three bytes. + */ + param_len=3; + if ((param_len > n) || + (*p != NAMED_CURVE_TYPE) || + ((curve_nid = curve_id2nid(*(p + 2))) == 0)) + { + al=SSL_AD_INTERNAL_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS); + goto f_err; + } + + ngroup = EC_GROUP_new_by_curve_name(curve_nid); + if (ngroup == NULL) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB); + goto err; + } + if (EC_KEY_set_group(ecdh, ngroup) == 0) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB); + goto err; + } + EC_GROUP_free(ngroup); + + group = EC_KEY_get0_group(ecdh); + + if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && + (EC_GROUP_get_degree(group) > 163)) + { + al=SSL_AD_EXPORT_RESTRICTION; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER); + goto f_err; + } + + p+=3; + + /* Next, get the encoded ECPoint */ + if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) || + ((bn_ctx = BN_CTX_new()) == NULL)) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE); + goto err; + } + + encoded_pt_len = *p; /* length of encoded point */ + p+=1; + param_len += (1 + encoded_pt_len); + if ((param_len > n) || + (EC_POINT_oct2point(group, srvr_ecpoint, + p, encoded_pt_len, bn_ctx) == 0)) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT); + goto f_err; + } + + n-=param_len; + p+=encoded_pt_len; + + /* The ECC/TLS specification does not mention + * the use of DSA to sign ECParameters in the server + * key exchange message. We do support RSA and ECDSA. + */ + if (0) ; +#ifndef OPENSSL_NO_RSA + else if (alg & SSL_aRSA) + pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); +#endif +#ifndef OPENSSL_NO_ECDSA + else if (alg & SSL_aECDSA) + pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509); +#endif + /* else anonymous ECDH, so no certificate or pkey. */ + EC_KEY_set_public_key(ecdh, srvr_ecpoint); + s->session->sess_cert->peer_ecdh_tmp=ecdh; + ecdh=NULL; + BN_CTX_free(bn_ctx); + EC_POINT_free(srvr_ecpoint); + srvr_ecpoint = NULL; + } + else if (alg & SSL_kECDH) + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE); + goto f_err; + } +#endif /* !OPENSSL_NO_ECDH */ + if (alg & SSL_aFZA) + { + al=SSL_AD_HANDSHAKE_FAILURE; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER); + goto f_err; + } + + + /* p points to the next byte, there are 'n' bytes left */ + + /* if it was signed, check the signature */ + if (pkey != NULL) + { + n2s(p,i); + n-=2; + j=EVP_PKEY_size(pkey); + + if ((i != n) || (n > j) || (n <= 0)) + { + /* wrong packet length */ + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_WRONG_SIGNATURE_LENGTH); + goto f_err; + } + +#ifndef OPENSSL_NO_RSA + if (pkey->type == EVP_PKEY_RSA) + { + int num; + + j=0; + q=md_buf; + for (num=2; num > 0; num--) + { + EVP_DigestInit_ex(&md_ctx,(num == 2) + ?s->ctx->md5:s->ctx->sha1, NULL); + EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); + EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); + EVP_DigestUpdate(&md_ctx,param,param_len); + EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i); + q+=i; + j+=i; + } + i=RSA_verify(NID_md5_sha1, md_buf, j, p, n, + pkey->pkey.rsa); + if (i < 0) + { + al=SSL_AD_DECRYPT_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT); + goto f_err; + } + if (i == 0) + { + /* bad signature */ + al=SSL_AD_DECRYPT_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE); + goto f_err; + } + } + else +#endif +#ifndef OPENSSL_NO_DSA + if (pkey->type == EVP_PKEY_DSA) + { + /* lets do DSS */ + EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), NULL); + EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); + EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); + EVP_VerifyUpdate(&md_ctx,param,param_len); + if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey)) + { + /* bad signature */ + al=SSL_AD_DECRYPT_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE); + goto f_err; + } + } + else +#endif +#ifndef OPENSSL_NO_ECDSA + if (pkey->type == EVP_PKEY_EC) + { + /* let's do ECDSA */ + EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL); + EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE); + EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE); + EVP_VerifyUpdate(&md_ctx,param,param_len); + if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey)) + { + /* bad signature */ + al=SSL_AD_DECRYPT_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE); + goto f_err; + } + } + else +#endif + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); + goto err; + } + } + else + { + /* still data left over */ + if (!(alg & SSL_aNULL)) + { + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); + goto err; + } + if (n != 0) + { + al=SSL_AD_DECODE_ERROR; + SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_EXTRA_DATA_IN_MESSAGE); + goto f_err; + } + } + EVP_PKEY_free(pkey); + EVP_MD_CTX_cleanup(&md_ctx); + return(1); +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,al); +err: + EVP_PKEY_free(pkey); +#ifndef OPENSSL_NO_RSA + if (rsa != NULL) + RSA_free(rsa); +#endif +#ifndef OPENSSL_NO_DH + if (dh != NULL) + DH_free(dh); +#endif +#ifndef OPENSSL_NO_ECDH + BN_CTX_free(bn_ctx); + EC_POINT_free(srvr_ecpoint); + if (ecdh != NULL) + EC_KEY_free(ecdh); +#endif + EVP_MD_CTX_cleanup(&md_ctx); + return(-1); + } + +int ssl3_get_certificate_request(SSL *s) + { + int ok,ret=0; + unsigned long n,nc,l; + unsigned int llen,ctype_num,i; + X509_NAME *xn=NULL; + const unsigned char *p,*q; + unsigned char *d; + STACK_OF(X509_NAME) *ca_sk=NULL; + + n=s->method->ssl_get_message(s, + SSL3_ST_CR_CERT_REQ_A, + SSL3_ST_CR_CERT_REQ_B, + -1, + s->max_cert_list, + &ok); + + if (!ok) return((int)n); + + s->s3->tmp.cert_req=0; + + if (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE) + { + s->s3->tmp.reuse_message=1; + return(1); + } + + if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_REQUEST) + { + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE); + SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_WRONG_MESSAGE_TYPE); + goto err; + } + + /* TLS does not like anon-DH with client cert */ + if (s->version > SSL3_VERSION) + { + l=s->s3->tmp.new_cipher->algorithms; + if (l & SSL_aNULL) + { + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE); + SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER); + goto err; + } + } + + p=d=(unsigned char *)s->init_msg; + + if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL) + { + SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE); + goto err; + } + + /* get the certificate types */ + ctype_num= *(p++); + if (ctype_num > SSL3_CT_NUMBER) + ctype_num=SSL3_CT_NUMBER; + for (i=0; i<ctype_num; i++) + s->s3->tmp.ctype[i]= p[i]; + p+=ctype_num; + + /* get the CA RDNs */ + n2s(p,llen); +#if 0 +{ +FILE *out; +out=fopen("/tmp/vsign.der","w"); +fwrite(p,1,llen,out); +fclose(out); +} +#endif + + if ((llen+ctype_num+2+1) != n) + { + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); + SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_LENGTH_MISMATCH); + goto err; + } + + for (nc=0; nc<llen; ) + { + n2s(p,l); + if ((l+nc+2) > llen) + { + if ((s->options & SSL_OP_NETSCAPE_CA_DN_BUG)) + goto cont; /* netscape bugs */ + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); + SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_TOO_LONG); + goto err; + } + + q=p; + + if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL) + { + /* If netscape tolerance is on, ignore errors */ + if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG) + goto cont; + else + { + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); + SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_ASN1_LIB); + goto err; + } + } + + if (q != (p+l)) + { + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); + SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,SSL_R_CA_DN_LENGTH_MISMATCH); + goto err; + } + if (!sk_X509_NAME_push(ca_sk,xn)) + { + SSLerr(SSL_F_SSL3_GET_CERTIFICATE_REQUEST,ERR_R_MALLOC_FAILURE); + goto err; + } + + p+=l; + nc+=l+2; + } + + if (0) + { +cont: + ERR_clear_error(); + } + + /* we should setup a certificate to return.... */ + s->s3->tmp.cert_req=1; + s->s3->tmp.ctype_num=ctype_num; + if (s->s3->tmp.ca_names != NULL) + sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free); + s->s3->tmp.ca_names=ca_sk; + ca_sk=NULL; + + ret=1; +err: + if (ca_sk != NULL) sk_X509_NAME_pop_free(ca_sk,X509_NAME_free); + return(ret); + } + +static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b) + { + return(X509_NAME_cmp(*a,*b)); + } + +int ssl3_get_server_done(SSL *s) + { + int ok,ret=0; + long n; + + n=s->method->ssl_get_message(s, + SSL3_ST_CR_SRVR_DONE_A, + SSL3_ST_CR_SRVR_DONE_B, + SSL3_MT_SERVER_DONE, + 30, /* should be very small, like 0 :-) */ + &ok); + + if (!ok) return((int)n); + if (n > 0) + { + /* should contain no data */ + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR); + SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH); + return -1; + } + ret=1; + return(ret); + } + + +int ssl3_send_client_key_exchange(SSL *s) + { + unsigned char *p,*d; + int n; + unsigned long l; +#ifndef OPENSSL_NO_RSA + unsigned char *q; + EVP_PKEY *pkey=NULL; +#endif +#ifndef OPENSSL_NO_KRB5 + KSSL_ERR kssl_err; +#endif /* OPENSSL_NO_KRB5 */ +#ifndef OPENSSL_NO_ECDH + EC_KEY *clnt_ecdh = NULL; + const EC_POINT *srvr_ecpoint = NULL; + EVP_PKEY *srvr_pub_pkey = NULL; + unsigned char *encodedPoint = NULL; + int encoded_pt_len = 0; + BN_CTX * bn_ctx = NULL; +#endif + + if (s->state == SSL3_ST_CW_KEY_EXCH_A) + { + d=(unsigned char *)s->init_buf->data; + p= &(d[4]); + + l=s->s3->tmp.new_cipher->algorithms; + + /* Fool emacs indentation */ + if (0) {} +#ifndef OPENSSL_NO_RSA + else if (l & SSL_kRSA) + { + RSA *rsa; + unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH]; + + if (s->session->sess_cert->peer_rsa_tmp != NULL) + rsa=s->session->sess_cert->peer_rsa_tmp; + else + { + pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509); + if ((pkey == NULL) || + (pkey->type != EVP_PKEY_RSA) || + (pkey->pkey.rsa == NULL)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR); + goto err; + } + rsa=pkey->pkey.rsa; + EVP_PKEY_free(pkey); + } + + tmp_buf[0]=s->client_version>>8; + tmp_buf[1]=s->client_version&0xff; + if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0) + goto err; + + s->session->master_key_length=sizeof tmp_buf; + + q=p; + /* Fix buf for TLS and beyond */ + if (s->version > SSL3_VERSION) + p+=2; + n=RSA_public_encrypt(sizeof tmp_buf, + tmp_buf,p,rsa,RSA_PKCS1_PADDING); +#ifdef PKCS1_CHECK + if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++; + if (s->options & SSL_OP_PKCS1_CHECK_2) tmp_buf[0]=0x70; +#endif + if (n <= 0) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_ENCRYPT); + goto err; + } + + /* Fix buf for TLS and beyond */ + if (s->version > SSL3_VERSION) + { + s2n(n,q); + n+=2; + } + + s->session->master_key_length= + s->method->ssl3_enc->generate_master_secret(s, + s->session->master_key, + tmp_buf,sizeof tmp_buf); + OPENSSL_cleanse(tmp_buf,sizeof tmp_buf); + } +#endif +#ifndef OPENSSL_NO_KRB5 + else if (l & SSL_kKRB5) + { + krb5_error_code krb5rc; + KSSL_CTX *kssl_ctx = s->kssl_ctx; + /* krb5_data krb5_ap_req; */ + krb5_data *enc_ticket; + krb5_data authenticator, *authp = NULL; + EVP_CIPHER_CTX ciph_ctx; + EVP_CIPHER *enc = NULL; + unsigned char iv[EVP_MAX_IV_LENGTH]; + unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH]; + unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH + + EVP_MAX_IV_LENGTH]; + int padl, outl = sizeof(epms); + + EVP_CIPHER_CTX_init(&ciph_ctx); + +#ifdef KSSL_DEBUG + printf("ssl3_send_client_key_exchange(%lx & %lx)\n", + l, SSL_kKRB5); +#endif /* KSSL_DEBUG */ + + authp = NULL; +#ifdef KRB5SENDAUTH + if (KRB5SENDAUTH) authp = &authenticator; +#endif /* KRB5SENDAUTH */ + + krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp, + &kssl_err); + enc = kssl_map_enc(kssl_ctx->enctype); + if (enc == NULL) + goto err; +#ifdef KSSL_DEBUG + { + printf("kssl_cget_tkt rtn %d\n", krb5rc); + if (krb5rc && kssl_err.text) + printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text); + } +#endif /* KSSL_DEBUG */ + + if (krb5rc) + { + ssl3_send_alert(s,SSL3_AL_FATAL, + SSL_AD_HANDSHAKE_FAILURE); + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + kssl_err.reason); + goto err; + } + + /* 20010406 VRS - Earlier versions used KRB5 AP_REQ + ** in place of RFC 2712 KerberosWrapper, as in: + ** + ** Send ticket (copy to *p, set n = length) + ** n = krb5_ap_req.length; + ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length); + ** if (krb5_ap_req.data) + ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req); + ** + ** Now using real RFC 2712 KerberosWrapper + ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>) + ** Note: 2712 "opaque" types are here replaced + ** with a 2-byte length followed by the value. + ** Example: + ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms + ** Where "xx xx" = length bytes. Shown here with + ** optional authenticator omitted. + */ + + /* KerberosWrapper.Ticket */ + s2n(enc_ticket->length,p); + memcpy(p, enc_ticket->data, enc_ticket->length); + p+= enc_ticket->length; + n = enc_ticket->length + 2; + + /* KerberosWrapper.Authenticator */ + if (authp && authp->length) + { + s2n(authp->length,p); + memcpy(p, authp->data, authp->length); + p+= authp->length; + n+= authp->length + 2; + + free(authp->data); + authp->data = NULL; + authp->length = 0; + } + else + { + s2n(0,p);/* null authenticator length */ + n+=2; + } + + tmp_buf[0]=s->client_version>>8; + tmp_buf[1]=s->client_version&0xff; + if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0) + goto err; + + /* 20010420 VRS. Tried it this way; failed. + ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL); + ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx, + ** kssl_ctx->length); + ** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv); + */ + + memset(iv, 0, sizeof iv); /* per RFC 1510 */ + EVP_EncryptInit_ex(&ciph_ctx,enc, NULL, + kssl_ctx->key,iv); + EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf, + sizeof tmp_buf); + EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl); + outl += padl; + if (outl > sizeof epms) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); + goto err; + } + EVP_CIPHER_CTX_cleanup(&ciph_ctx); + + /* KerberosWrapper.EncryptedPreMasterSecret */ + s2n(outl,p); + memcpy(p, epms, outl); + p+=outl; + n+=outl + 2; + + s->session->master_key_length= + s->method->ssl3_enc->generate_master_secret(s, + s->session->master_key, + tmp_buf, sizeof tmp_buf); + + OPENSSL_cleanse(tmp_buf, sizeof tmp_buf); + OPENSSL_cleanse(epms, outl); + } +#endif +#ifndef OPENSSL_NO_DH + else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) + { + DH *dh_srvr,*dh_clnt; + + if (s->session->sess_cert->peer_dh_tmp != NULL) + dh_srvr=s->session->sess_cert->peer_dh_tmp; + else + { + /* we get them from the cert */ + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_DH_PARAMETERS); + goto err; + } + + /* generate a new random key */ + if ((dh_clnt=DHparams_dup(dh_srvr)) == NULL) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); + goto err; + } + if (!DH_generate_key(dh_clnt)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); + goto err; + } + + /* use the 'p' output buffer for the DH key, but + * make sure to clear it out afterwards */ + + n=DH_compute_key(p,dh_srvr->pub_key,dh_clnt); + + if (n <= 0) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB); + goto err; + } + + /* generate master key from the result */ + s->session->master_key_length= + s->method->ssl3_enc->generate_master_secret(s, + s->session->master_key,p,n); + /* clean up */ + memset(p,0,n); + + /* send off the data */ + n=BN_num_bytes(dh_clnt->pub_key); + s2n(n,p); + BN_bn2bin(dh_clnt->pub_key,p); + n+=2; + + DH_free(dh_clnt); + + /* perhaps clean things up a bit EAY EAY EAY EAY*/ + } +#endif + +#ifndef OPENSSL_NO_ECDH + else if ((l & SSL_kECDH) || (l & SSL_kECDHE)) + { + const EC_GROUP *srvr_group = NULL; + EC_KEY *tkey; + int ecdh_clnt_cert = 0; + int field_size = 0; + + /* Did we send out the client's + * ECDH share for use in premaster + * computation as part of client certificate? + * If so, set ecdh_clnt_cert to 1. + */ + if ((l & SSL_kECDH) && (s->cert != NULL)) + { + /* XXX: For now, we do not support client + * authentication using ECDH certificates. + * To add such support, one needs to add + * code that checks for appropriate + * conditions and sets ecdh_clnt_cert to 1. + * For example, the cert have an ECC + * key on the same curve as the server's + * and the key should be authorized for + * key agreement. + * + * One also needs to add code in ssl3_connect + * to skip sending the certificate verify + * message. + * + * if ((s->cert->key->privatekey != NULL) && + * (s->cert->key->privatekey->type == + * EVP_PKEY_EC) && ...) + * ecdh_clnt_cert = 1; + */ + } + + if (s->session->sess_cert->peer_ecdh_tmp != NULL) + { + tkey = s->session->sess_cert->peer_ecdh_tmp; + } + else + { + /* Get the Server Public Key from Cert */ + srvr_pub_pkey = X509_get_pubkey(s->session-> \ + sess_cert->peer_pkeys[SSL_PKEY_ECC].x509); + if ((srvr_pub_pkey == NULL) || + (srvr_pub_pkey->type != EVP_PKEY_EC) || + (srvr_pub_pkey->pkey.ec == NULL)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_INTERNAL_ERROR); + goto err; + } + + tkey = srvr_pub_pkey->pkey.ec; + } + + srvr_group = EC_KEY_get0_group(tkey); + srvr_ecpoint = EC_KEY_get0_public_key(tkey); + + if ((srvr_group == NULL) || (srvr_ecpoint == NULL)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_INTERNAL_ERROR); + goto err; + } + + if ((clnt_ecdh=EC_KEY_new()) == NULL) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!EC_KEY_set_group(clnt_ecdh, srvr_group)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB); + goto err; + } + if (ecdh_clnt_cert) + { + /* Reuse key info from our certificate + * We only need our private key to perform + * the ECDH computation. + */ + const BIGNUM *priv_key; + tkey = s->cert->key->privatekey->pkey.ec; + priv_key = EC_KEY_get0_private_key(tkey); + if (priv_key == NULL) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE); + goto err; + } + if (!EC_KEY_set_private_key(clnt_ecdh, priv_key)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB); + goto err; + } + } + else + { + /* Generate a new ECDH key pair */ + if (!(EC_KEY_generate_key(clnt_ecdh))) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB); + goto err; + } + } + + /* use the 'p' output buffer for the ECDH key, but + * make sure to clear it out afterwards + */ + + field_size = EC_GROUP_get_degree(srvr_group); + if (field_size <= 0) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_ECDH_LIB); + goto err; + } + n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL); + if (n <= 0) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_ECDH_LIB); + goto err; + } + + /* generate master key from the result */ + s->session->master_key_length = s->method->ssl3_enc \ + -> generate_master_secret(s, + s->session->master_key, + p, n); + + memset(p, 0, n); /* clean up */ + + if (ecdh_clnt_cert) + { + /* Send empty client key exch message */ + n = 0; + } + else + { + /* First check the size of encoding and + * allocate memory accordingly. + */ + encoded_pt_len = + EC_POINT_point2oct(srvr_group, + EC_KEY_get0_public_key(clnt_ecdh), + POINT_CONVERSION_UNCOMPRESSED, + NULL, 0, NULL); + + encodedPoint = (unsigned char *) + OPENSSL_malloc(encoded_pt_len * + sizeof(unsigned char)); + bn_ctx = BN_CTX_new(); + if ((encodedPoint == NULL) || + (bn_ctx == NULL)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE); + goto err; + } + + /* Encode the public key */ + n = EC_POINT_point2oct(srvr_group, + EC_KEY_get0_public_key(clnt_ecdh), + POINT_CONVERSION_UNCOMPRESSED, + encodedPoint, encoded_pt_len, bn_ctx); + + *p = n; /* length of encoded point */ + /* Encoded point will be copied here */ + p += 1; + /* copy the point */ + memcpy((unsigned char *)p, encodedPoint, n); + /* increment n to account for length field */ + n += 1; + } + + /* Free allocated memory */ + BN_CTX_free(bn_ctx); + if (encodedPoint != NULL) OPENSSL_free(encodedPoint); + if (clnt_ecdh != NULL) + EC_KEY_free(clnt_ecdh); + EVP_PKEY_free(srvr_pub_pkey); + } +#endif /* !OPENSSL_NO_ECDH */ + else + { + ssl3_send_alert(s, SSL3_AL_FATAL, + SSL_AD_HANDSHAKE_FAILURE); + SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, + ERR_R_INTERNAL_ERROR); + goto err; + } + + *(d++)=SSL3_MT_CLIENT_KEY_EXCHANGE; + l2n3(n,d); + + s->state=SSL3_ST_CW_KEY_EXCH_B; + /* number of bytes to write */ + s->init_num=n+4; + s->init_off=0; + } + + /* SSL3_ST_CW_KEY_EXCH_B */ + return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); +err: +#ifndef OPENSSL_NO_ECDH + BN_CTX_free(bn_ctx); + if (encodedPoint != NULL) OPENSSL_free(encodedPoint); + if (clnt_ecdh != NULL) + EC_KEY_free(clnt_ecdh); + EVP_PKEY_free(srvr_pub_pkey); +#endif + return(-1); + } + +int ssl3_send_client_verify(SSL *s) + { + unsigned char *p,*d; + unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH]; + EVP_PKEY *pkey; +#ifndef OPENSSL_NO_RSA + unsigned u=0; +#endif + unsigned long n; +#if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA) + int j; +#endif + + if (s->state == SSL3_ST_CW_CERT_VRFY_A) + { + d=(unsigned char *)s->init_buf->data; + p= &(d[4]); + pkey=s->cert->key->privatekey; + + s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2), + &(data[MD5_DIGEST_LENGTH])); + +#ifndef OPENSSL_NO_RSA + if (pkey->type == EVP_PKEY_RSA) + { + s->method->ssl3_enc->cert_verify_mac(s, + &(s->s3->finish_dgst1),&(data[0])); + if (RSA_sign(NID_md5_sha1, data, + MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH, + &(p[2]), &u, pkey->pkey.rsa) <= 0 ) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB); + goto err; + } + s2n(u,p); + n=u+2; + } + else +#endif +#ifndef OPENSSL_NO_DSA + if (pkey->type == EVP_PKEY_DSA) + { + if (!DSA_sign(pkey->save_type, + &(data[MD5_DIGEST_LENGTH]), + SHA_DIGEST_LENGTH,&(p[2]), + (unsigned int *)&j,pkey->pkey.dsa)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_DSA_LIB); + goto err; + } + s2n(j,p); + n=j+2; + } + else +#endif +#ifndef OPENSSL_NO_ECDSA + if (pkey->type == EVP_PKEY_EC) + { + if (!ECDSA_sign(pkey->save_type, + &(data[MD5_DIGEST_LENGTH]), + SHA_DIGEST_LENGTH,&(p[2]), + (unsigned int *)&j,pkey->pkey.ec)) + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY, + ERR_R_ECDSA_LIB); + goto err; + } + s2n(j,p); + n=j+2; + } + else +#endif + { + SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR); + goto err; + } + *(d++)=SSL3_MT_CERTIFICATE_VERIFY; + l2n3(n,d); + + s->state=SSL3_ST_CW_CERT_VRFY_B; + s->init_num=(int)n+4; + s->init_off=0; + } + return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); +err: + return(-1); + } + +int ssl3_send_client_certificate(SSL *s) + { + X509 *x509=NULL; + EVP_PKEY *pkey=NULL; + int i; + unsigned long l; + + if (s->state == SSL3_ST_CW_CERT_A) + { + if ((s->cert == NULL) || + (s->cert->key->x509 == NULL) || + (s->cert->key->privatekey == NULL)) + s->state=SSL3_ST_CW_CERT_B; + else + s->state=SSL3_ST_CW_CERT_C; + } + + /* We need to get a client cert */ + if (s->state == SSL3_ST_CW_CERT_B) + { + /* If we get an error, we need to + * ssl->rwstate=SSL_X509_LOOKUP; return(-1); + * We then get retied later */ + i=0; + if (s->ctx->client_cert_cb != NULL) + i=s->ctx->client_cert_cb(s,&(x509),&(pkey)); + if (i < 0) + { + s->rwstate=SSL_X509_LOOKUP; + return(-1); + } + s->rwstate=SSL_NOTHING; + if ((i == 1) && (pkey != NULL) && (x509 != NULL)) + { + s->state=SSL3_ST_CW_CERT_B; + if ( !SSL_use_certificate(s,x509) || + !SSL_use_PrivateKey(s,pkey)) + i=0; + } + else if (i == 1) + { + i=0; + SSLerr(SSL_F_SSL3_SEND_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK); + } + + if (x509 != NULL) X509_free(x509); + if (pkey != NULL) EVP_PKEY_free(pkey); + if (i == 0) + { + if (s->version == SSL3_VERSION) + { + s->s3->tmp.cert_req=0; + ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_NO_CERTIFICATE); + return(1); + } + else + { + s->s3->tmp.cert_req=2; + } + } + + /* Ok, we have a cert */ + s->state=SSL3_ST_CW_CERT_C; + } + + if (s->state == SSL3_ST_CW_CERT_C) + { + s->state=SSL3_ST_CW_CERT_D; + l=ssl3_output_cert_chain(s, + (s->s3->tmp.cert_req == 2)?NULL:s->cert->key->x509); + s->init_num=(int)l; + s->init_off=0; + } + /* SSL3_ST_CW_CERT_D */ + return(ssl3_do_write(s,SSL3_RT_HANDSHAKE)); + } + +#define has_bits(i,m) (((i)&(m)) == (m)) + +int ssl3_check_cert_and_algorithm(SSL *s) + { + int i,idx; + long algs; + EVP_PKEY *pkey=NULL; + SESS_CERT *sc; +#ifndef OPENSSL_NO_RSA + RSA *rsa; +#endif +#ifndef OPENSSL_NO_DH + DH *dh; +#endif + + sc=s->session->sess_cert; + + if (sc == NULL) + { + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR); + goto err; + } + + algs=s->s3->tmp.new_cipher->algorithms; + + /* we don't have a certificate */ + if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5)) + return(1); + +#ifndef OPENSSL_NO_RSA + rsa=s->session->sess_cert->peer_rsa_tmp; +#endif +#ifndef OPENSSL_NO_DH + dh=s->session->sess_cert->peer_dh_tmp; +#endif + + /* This is the passed certificate */ + + idx=sc->peer_cert_type; +#ifndef OPENSSL_NO_ECDH + if (idx == SSL_PKEY_ECC) + { + if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509, + s->s3->tmp.new_cipher) == 0) + { /* check failed */ + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT); + goto f_err; + } + else + { + return 1; + } + } +#endif + pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509); + i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey); + EVP_PKEY_free(pkey); + + + /* Check that we have a certificate if we require one */ + if ((algs & SSL_aRSA) && !has_bits(i,EVP_PK_RSA|EVP_PKT_SIGN)) + { + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT); + goto f_err; + } +#ifndef OPENSSL_NO_DSA + else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN)) + { + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT); + goto f_err; + } +#endif +#ifndef OPENSSL_NO_RSA + if ((algs & SSL_kRSA) && + !(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL))) + { + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_ENCRYPTING_CERT); + goto f_err; + } +#endif +#ifndef OPENSSL_NO_DH + if ((algs & SSL_kEDH) && + !(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL))) + { + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_KEY); + goto f_err; + } + else if ((algs & SSL_kDHr) && !has_bits(i,EVP_PK_DH|EVP_PKS_RSA)) + { + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT); + goto f_err; + } +#ifndef OPENSSL_NO_DSA + else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA)) + { + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT); + goto f_err; + } +#endif +#endif + + if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP)) + { +#ifndef OPENSSL_NO_RSA + if (algs & SSL_kRSA) + { + if (rsa == NULL + || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) + { + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY); + goto f_err; + } + } + else +#endif +#ifndef OPENSSL_NO_DH + if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd)) + { + if (dh == NULL + || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)) + { + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY); + goto f_err; + } + } + else +#endif + { + SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE); + goto f_err; + } + } + return(1); +f_err: + ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); +err: + return(0); + } + + +#ifndef OPENSSL_NO_ECDH +/* This is the complement of nid2curve_id in s3_srvr.c. */ +static int curve_id2nid(int curve_id) +{ + /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001) + * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */ + static int nid_list[26] = + { + 0, + NID_sect163k1, /* sect163k1 (1) */ + NID_sect163r1, /* sect163r1 (2) */ + NID_sect163r2, /* sect163r2 (3) */ + NID_sect193r1, /* sect193r1 (4) */ + NID_sect193r2, /* sect193r2 (5) */ + NID_sect233k1, /* sect233k1 (6) */ + NID_sect233r1, /* sect233r1 (7) */ + NID_sect239k1, /* sect239k1 (8) */ + NID_sect283k1, /* sect283k1 (9) */ + NID_sect283r1, /* sect283r1 (10) */ + NID_sect409k1, /* sect409k1 (11) */ + NID_sect409r1, /* sect409r1 (12) */ + NID_sect571k1, /* sect571k1 (13) */ + NID_sect571r1, /* sect571r1 (14) */ + NID_secp160k1, /* secp160k1 (15) */ + NID_secp160r1, /* secp160r1 (16) */ + NID_secp160r2, /* secp160r2 (17) */ + NID_secp192k1, /* secp192k1 (18) */ + NID_X9_62_prime192v1, /* secp192r1 (19) */ + NID_secp224k1, /* secp224k1 (20) */ + NID_secp224r1, /* secp224r1 (21) */ + NID_secp256k1, /* secp256k1 (22) */ + NID_X9_62_prime256v1, /* secp256r1 (23) */ + NID_secp384r1, /* secp384r1 (24) */ + NID_secp521r1 /* secp521r1 (25) */ + }; + + if ((curve_id < 1) || (curve_id > 25)) return 0; + + return nid_list[curve_id]; +} +#endif diff --git a/ssl/s3_enc.c b/ssl/s3_enc.c new file mode 100644 index 000000000000..2859351b001f --- /dev/null +++ b/ssl/s3_enc.c @@ -0,0 +1,720 @@ +/* ssl/s3_enc.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE O |