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-rw-r--r--ssl/d1_srvr.c2958
1 files changed, 1476 insertions, 1482 deletions
diff --git a/ssl/d1_srvr.c b/ssl/d1_srvr.c
index da4c21e06a1c..c4ec9fe10845 100644
--- a/ssl/d1_srvr.c
+++ b/ssl/d1_srvr.c
@@ -1,7 +1,7 @@
/* ssl/d1_srvr.c */
-/*
+/*
* DTLS implementation written by Nagendra Modadugu
- * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
+ * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
*/
/* ====================================================================
* Copyright (c) 1999-2007 The OpenSSL Project. All rights reserved.
@@ -11,7 +11,7 @@
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
@@ -62,21 +62,21 @@
* 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:
@@ -91,10 +91,10 @@
* 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
+ * 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
@@ -106,7 +106,7 @@
* 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
@@ -123,1624 +123,1618 @@
#include <openssl/md5.h>
#include <openssl/bn.h>
#ifndef OPENSSL_NO_DH
-#include <openssl/dh.h>
+# include <openssl/dh.h>
#endif
static const SSL_METHOD *dtls1_get_server_method(int ver);
static int dtls1_send_hello_verify_request(SSL *s);
static const SSL_METHOD *dtls1_get_server_method(int ver)
- {
- if (ver == DTLS1_VERSION)
- return(DTLSv1_server_method());
- else
- return(NULL);
- }
+{
+ 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)
+ dtls1_accept,
+ ssl_undefined_function, dtls1_get_server_method)
int dtls1_accept(SSL *s)
- {
- BUF_MEM *buf;
- unsigned long Time=(unsigned long)time(NULL);
- void (*cb)(const SSL *ssl,int type,int val)=NULL;
- unsigned long alg_k;
- int ret= -1;
- int new_state,state,skip=0;
- int listen;
+{
+ BUF_MEM *buf;
+ unsigned long Time = (unsigned long)time(NULL);
+ void (*cb) (const SSL *ssl, int type, int val) = NULL;
+ unsigned long alg_k;
+ int ret = -1;
+ int new_state, state, skip = 0;
+ int listen;
#ifndef OPENSSL_NO_SCTP
- unsigned char sctpauthkey[64];
- char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];
+ unsigned char sctpauthkey[64];
+ char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];
#endif
- RAND_add(&Time,sizeof(Time),0);
- ERR_clear_error();
- clear_sys_error();
+ 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;
- if (s->info_callback != NULL)
- cb=s->info_callback;
- else if (s->ctx->info_callback != NULL)
- cb=s->ctx->info_callback;
-
- listen = s->d1->listen;
+ listen = s->d1->listen;
- /* init things to blank */
- s->in_handshake++;
- if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
+ /* init things to blank */
+ s->in_handshake++;
+ if (!SSL_in_init(s) || SSL_in_before(s))
+ SSL_clear(s);
- s->d1->listen = listen;
+ s->d1->listen = listen;
#ifndef OPENSSL_NO_SCTP
- /* Notify SCTP BIO socket to enter handshake
- * mode and prevent stream identifier other
- * than 0. Will be ignored if no SCTP is used.
- */
- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);
+ /*
+ * Notify SCTP BIO socket to enter handshake mode and prevent stream
+ * identifier other than 0. Will be ignored if no SCTP is used.
+ */
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE,
+ s->in_handshake, NULL);
#endif
- if (s->cert == NULL)
- {
- SSLerr(SSL_F_DTLS1_ACCEPT,SSL_R_NO_CERTIFICATE_SET);
- return(-1);
- }
-
+ if (s->cert == NULL) {
+ SSLerr(SSL_F_DTLS1_ACCEPT, SSL_R_NO_CERTIFICATE_SET);
+ return (-1);
+ }
#ifndef OPENSSL_NO_HEARTBEATS
- /* If we're awaiting a HeartbeatResponse, pretend we
- * already got and don't await it anymore, because
- * Heartbeats don't make sense during handshakes anyway.
- */
- if (s->tlsext_hb_pending)
- {
- dtls1_stop_timer(s);
- s->tlsext_hb_pending = 0;
- s->tlsext_hb_seq++;
- }
+ /*
+ * If we're awaiting a HeartbeatResponse, pretend we already got and
+ * don't await it anymore, because Heartbeats don't make sense during
+ * handshakes anyway.
+ */
+ if (s->tlsext_hb_pending) {
+ dtls1_stop_timer(s);
+ s->tlsext_hb_pending = 0;
+ s->tlsext_hb_seq++;
+ }
#endif
- for (;;)
- {
- state=s->state;
-
- switch (s->state)
- {
- case SSL_ST_RENEGOTIATE:
- s->renegotiate=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))
- {
- BUF_MEM_free(buf);
- ret= -1;
- goto end;
- }
- s->init_buf=buf;
- }
-
- if (!ssl3_setup_buffers(s))
- {
- ret= -1;
- goto end;
- }
-
- s->init_num=0;
- s->d1->change_cipher_spec_ok = 0;
- /* Should have been reset by ssl3_get_finished, too. */
- s->s3->change_cipher_spec = 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 :-)
- * ...but not with SCTP :-)
- */
+ for (;;) {
+ state = s->state;
+
+ switch (s->state) {
+ case SSL_ST_RENEGOTIATE:
+ s->renegotiate = 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)) {
+ BUF_MEM_free(buf);
+ ret = -1;
+ goto end;
+ }
+ s->init_buf = buf;
+ }
+
+ if (!ssl3_setup_buffers(s)) {
+ ret = -1;
+ goto end;
+ }
+
+ s->init_num = 0;
+ s->d1->change_cipher_spec_ok = 0;
+ /*
+ * Should have been reset by ssl3_get_finished, too.
+ */
+ s->s3->change_cipher_spec = 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 :-) ...but not with
+ * SCTP :-)
+ */
#ifndef OPENSSL_NO_SCTP
- if (!BIO_dgram_is_sctp(SSL_get_wbio(s)))
+ if (!BIO_dgram_is_sctp(SSL_get_wbio(s)))
#endif
- 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;
- }
-
- break;
-
- case SSL3_ST_SW_HELLO_REQ_A:
- case SSL3_ST_SW_HELLO_REQ_B:
-
- s->shutdown=0;
- dtls1_clear_record_buffer(s);
- dtls1_start_timer(s);
- ret=dtls1_send_hello_request(s);
- if (ret <= 0) goto end;
- s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A;
- 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;
- dtls1_stop_timer(s);
-
- if (ret == 1 && (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE))
- s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A;
- else
- s->state = SSL3_ST_SW_SRVR_HELLO_A;
-
- s->init_num=0;
-
- /* Reflect ClientHello sequence to remain stateless while listening */
- if (listen)
- {
- memcpy(s->s3->write_sequence, s->s3->read_sequence, sizeof(s->s3->write_sequence));
- }
-
- /* If we're just listening, stop here */
- if (listen && s->state == SSL3_ST_SW_SRVR_HELLO_A)
- {
- ret = 2;
- s->d1->listen = 0;
- /* Set expected sequence numbers
- * to continue the handshake.
- */
- s->d1->handshake_read_seq = 2;
- s->d1->handshake_write_seq = 1;
- s->d1->next_handshake_write_seq = 1;
- goto end;
- }
-
- 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->state=SSL3_ST_SW_FLUSH;
- s->s3->tmp.next_state=SSL3_ST_SR_CLNT_HELLO_A;
-
- /* HelloVerifyRequest resets Finished MAC */
- if (s->version != DTLS1_BAD_VER)
- ssl3_init_finished_mac(s);
- break;
-
+ 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;
+ }
+
+ break;
+
+ case SSL3_ST_SW_HELLO_REQ_A:
+ case SSL3_ST_SW_HELLO_REQ_B:
+
+ s->shutdown = 0;
+ dtls1_clear_record_buffer(s);
+ dtls1_start_timer(s);
+ ret = dtls1_send_hello_request(s);
+ if (ret <= 0)
+ goto end;
+ s->s3->tmp.next_state = SSL3_ST_SR_CLNT_HELLO_A;
+ 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;
+ dtls1_stop_timer(s);
+
+ if (ret == 1 && (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE))
+ s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A;
+ else
+ s->state = SSL3_ST_SW_SRVR_HELLO_A;
+
+ s->init_num = 0;
+
+ /*
+ * Reflect ClientHello sequence to remain stateless while
+ * listening
+ */
+ if (listen) {
+ memcpy(s->s3->write_sequence, s->s3->read_sequence,
+ sizeof(s->s3->write_sequence));
+ }
+
+ /* If we're just listening, stop here */
+ if (listen && s->state == SSL3_ST_SW_SRVR_HELLO_A) {
+ ret = 2;
+ s->d1->listen = 0;
+ /*
+ * Set expected sequence numbers to continue the handshake.
+ */
+ s->d1->handshake_read_seq = 2;
+ s->d1->handshake_write_seq = 1;
+ s->d1->next_handshake_write_seq = 1;
+ goto end;
+ }
+
+ 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->state = SSL3_ST_SW_FLUSH;
+ s->s3->tmp.next_state = SSL3_ST_SR_CLNT_HELLO_A;
+
+ /* HelloVerifyRequest resets Finished MAC */
+ if (s->version != DTLS1_BAD_VER)
+ ssl3_init_finished_mac(s);
+ break;
+
#ifndef OPENSSL_NO_SCTP
- case DTLS1_SCTP_ST_SR_READ_SOCK:
-
- if (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s)))
- {
- s->s3->in_read_app_data=2;
- s->rwstate=SSL_READING;
- BIO_clear_retry_flags(SSL_get_rbio(s));
- BIO_set_retry_read(SSL_get_rbio(s));
- ret = -1;
- goto end;
- }
-
- s->state=SSL3_ST_SR_FINISHED_A;
- break;
-
- case DTLS1_SCTP_ST_SW_WRITE_SOCK:
- ret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s));
- if (ret < 0) goto end;
-
- if (ret == 0)
- {
- if (s->d1->next_state != SSL_ST_OK)
- {
- s->s3->in_read_app_data=2;
- s->rwstate=SSL_READING;
- BIO_clear_retry_flags(SSL_get_rbio(s));
- BIO_set_retry_read(SSL_get_rbio(s));
- ret = -1;
- goto end;
- }
- }
-
- s->state=s->d1->next_state;
- break;
+ case DTLS1_SCTP_ST_SR_READ_SOCK:
+
+ if (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s))) {
+ s->s3->in_read_app_data = 2;
+ s->rwstate = SSL_READING;
+ BIO_clear_retry_flags(SSL_get_rbio(s));
+ BIO_set_retry_read(SSL_get_rbio(s));
+ ret = -1;
+ goto end;
+ }
+
+ s->state = SSL3_ST_SR_FINISHED_A;
+ break;
+
+ case DTLS1_SCTP_ST_SW_WRITE_SOCK:
+ ret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s));
+ if (ret < 0)
+ goto end;
+
+ if (ret == 0) {
+ if (s->d1->next_state != SSL_ST_OK) {
+ s->s3->in_read_app_data = 2;
+ s->rwstate = SSL_READING;
+ BIO_clear_retry_flags(SSL_get_rbio(s));
+ BIO_set_retry_read(SSL_get_rbio(s));
+ ret = -1;
+ goto end;
+ }
+ }
+
+ s->state = s->d1->next_state;
+ break;
#endif
- case SSL3_ST_SW_SRVR_HELLO_A:
- case SSL3_ST_SW_SRVR_HELLO_B:
- s->renegotiate = 2;
- dtls1_start_timer(s);
- ret=dtls1_send_server_hello(s);
- if (ret <= 0) goto end;
+ case SSL3_ST_SW_SRVR_HELLO_A:
+ case SSL3_ST_SW_SRVR_HELLO_B:
+ s->renegotiate = 2;
+ dtls1_start_timer(s);
+ ret = dtls1_send_server_hello(s);
+ if (ret <= 0)
+ goto end;
- if (s->hit)
- {
+ if (s->hit) {
#ifndef OPENSSL_NO_SCTP
- /* Add new shared key for SCTP-Auth,
- * will be ignored if no SCTP used.
- */
- snprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
- DTLS1_SCTP_AUTH_LABEL);
-
- SSL_export_keying_material(s, sctpauthkey,
- sizeof(sctpauthkey), labelbuffer,
- sizeof(labelbuffer), NULL, 0, 0);
-
- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
+ /*
+ * Add new shared key for SCTP-Auth, will be ignored if no
+ * SCTP used.
+ */
+ snprintf((char *)labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
+ DTLS1_SCTP_AUTH_LABEL);
+
+ SSL_export_keying_material(s, sctpauthkey,
+ sizeof(sctpauthkey), labelbuffer,
+ sizeof(labelbuffer), NULL, 0, 0);
+
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
sizeof(sctpauthkey), sctpauthkey);
#endif
#ifndef OPENSSL_NO_TLSEXT
- if (s->tlsext_ticket_expected)
- s->state=SSL3_ST_SW_SESSION_TICKET_A;
- else
- s->state=SSL3_ST_SW_CHANGE_A;
+ if (s->tlsext_ticket_expected)
+ s->state = SSL3_ST_SW_SESSION_TICKET_A;
+ else
+ s->state = SSL3_ST_SW_CHANGE_A;
#else
- s->state=SSL3_ST_SW_CHANGE_A;
+ s->state = SSL3_ST_SW_CHANGE_A;
#endif
- }
- 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 or normal PSK */
- if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)
- && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))
- {
- dtls1_start_timer(s);
- ret=dtls1_send_server_certificate(s);
- if (ret <= 0) goto end;
+ } 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 or normal PSK */
+ if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)
+ && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) {
+ dtls1_start_timer(s);
+ ret = dtls1_send_server_certificate(s);
+ if (ret <= 0)
+ goto end;
#ifndef OPENSSL_NO_TLSEXT
- if (s->tlsext_status_expected)
- s->state=SSL3_ST_SW_CERT_STATUS_A;
- else
- s->state=SSL3_ST_SW_KEY_EXCH_A;
- }
- else
- {
- skip = 1;
- s->state=SSL3_ST_SW_KEY_EXCH_A;
- }
+ if (s->tlsext_status_expected)
+ s->state = SSL3_ST_SW_CERT_STATUS_A;
+ else
+ s->state = SSL3_ST_SW_KEY_EXCH_A;
+ } else {
+ skip = 1;
+ s->state = SSL3_ST_SW_KEY_EXCH_A;
+ }
#else
- }
- else
- skip=1;
+ } else
+ skip = 1;
- s->state=SSL3_ST_SW_KEY_EXCH_A;
+ s->state = SSL3_ST_SW_KEY_EXCH_A;
#endif
- s->init_num=0;
- break;
-
- case SSL3_ST_SW_KEY_EXCH_A:
- case SSL3_ST_SW_KEY_EXCH_B:
- alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
-
- /*
- * clear this, it may get reset by
- * send_server_key_exchange
- */
- s->s3->tmp.use_rsa_tmp=0;
-
- /* only send if a DH key exchange or
- * RSA but we have a sign only certificate */
- if (0
- /* PSK: send ServerKeyExchange if PSK identity
- * hint if provided */
+ s->init_num = 0;
+ break;
+
+ case SSL3_ST_SW_KEY_EXCH_A:
+ case SSL3_ST_SW_KEY_EXCH_B:
+ alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
+
+ /*
+ * clear this, it may get reset by
+ * send_server_key_exchange
+ */
+ s->s3->tmp.use_rsa_tmp = 0;
+
+ /*
+ * only send if a DH key exchange or RSA but we have a sign only
+ * certificate
+ */
+ if (0
+ /*
+ * PSK: send ServerKeyExchange if PSK identity hint if
+ * provided
+ */
#ifndef OPENSSL_NO_PSK
- || ((alg_k & SSL_kPSK) && s->ctx->psk_identity_hint)
+ || ((alg_k & SSL_kPSK) && s->ctx->psk_identity_hint)
#endif
- || (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
- || (alg_k & SSL_kEECDH)
- || ((alg_k & 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)
- )
- )
- )
- )
- {
- dtls1_start_timer(s);
- 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->algorithm_auth & 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->algorithm_auth & SSL_aKRB5)
- /* With normal PSK Certificates and
- * Certificate Requests are omitted */
- || (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))
- {
- /* no cert request */
- skip=1;
- s->s3->tmp.cert_request=0;
- s->state=SSL3_ST_SW_SRVR_DONE_A;
+ || (alg_k & (SSL_kEDH | SSL_kDHr | SSL_kDHd))
+ || (alg_k & SSL_kEECDH)
+ || ((alg_k & 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)
+ )
+ )
+ )
+ ) {
+ dtls1_start_timer(s);
+ 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->algorithm_auth & 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->algorithm_auth & SSL_aKRB5)
+ /*
+ * With normal PSK Certificates and Certificate Requests
+ * are omitted
+ */
+ || (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) {
+ /* no cert request */
+ skip = 1;
+ s->s3->tmp.cert_request = 0;
+ s->state = SSL3_ST_SW_SRVR_DONE_A;
#ifndef OPENSSL_NO_SCTP
- if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
- {
- s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A;
- s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
- }
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s))) {
+ s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A;
+ s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
+ }
#endif
- }
- else
- {
- s->s3->tmp.cert_request=1;
- dtls1_start_timer(s);
- ret=dtls1_send_certificate_request(s);
- if (ret <= 0) goto end;
+ } else {
+ s->s3->tmp.cert_request = 1;
+ dtls1_start_timer(s);
+ ret = dtls1_send_certificate_request(s);
+ if (ret <= 0)
+ goto end;
#ifndef NETSCAPE_HANG_BUG
- s->state=SSL3_ST_SW_SRVR_DONE_A;
-#ifndef OPENSSL_NO_SCTP
- if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
- {
- s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A;
- s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
- }
-#endif
+ s->state = SSL3_ST_SW_SRVR_DONE_A;
+# ifndef OPENSSL_NO_SCTP
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s))) {
+ s->d1->next_state = SSL3_ST_SW_SRVR_DONE_A;
+ s->state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
+ }
+# endif
#else
- s->state=SSL3_ST_SW_FLUSH;
- s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;
-#ifndef OPENSSL_NO_SCTP
- if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
- {
- s->d1->next_state = s->s3->tmp.next_state;
- s->s3->tmp.next_state=DTLS1_SCTP_ST_SW_WRITE_SOCK;
- }
-#endif
+ s->state = SSL3_ST_SW_FLUSH;
+ s->s3->tmp.next_state = SSL3_ST_SR_CERT_A;
+# ifndef OPENSSL_NO_SCTP
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s))) {
+ s->d1->next_state = s->s3->tmp.next_state;
+ s->s3->tmp.next_state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
+ }
+# endif
#endif
- s->init_num=0;
- }
- break;
-
- case SSL3_ST_SW_SRVR_DONE_A:
- case SSL3_ST_SW_SRVR_DONE_B:
- dtls1_start_timer(s);
- 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:
- s->rwstate=SSL_WRITING;
- if (BIO_flush(s->wbio) <= 0)
- {
- /* If the write error was fatal, stop trying */
- if (!BIO_should_retry(s->wbio))
- {
- s->rwstate=SSL_NOTHING;
- s->state=s->s3->tmp.next_state;
- }
-
- 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)
- {
- dtls1_stop_timer(s);
- s->state = SSL3_ST_SR_CLNT_HELLO_C;
- }
- else {
- if (s->s3->tmp.cert_request)
- {
- 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->init_num = 0;
+ }
+ break;
+
+ case SSL3_ST_SW_SRVR_DONE_A:
+ case SSL3_ST_SW_SRVR_DONE_B:
+ dtls1_start_timer(s);
+ 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:
+ s->rwstate = SSL_WRITING;
+ if (BIO_flush(s->wbio) <= 0) {
+ /*
+ * If the write error was fatal, stop trying
+ */
+ if (!BIO_should_retry(s->wbio)) {
+ s->rwstate = SSL_NOTHING;
+ s->state = s->s3->tmp.next_state;
+ }
+
+ 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) {
+ dtls1_stop_timer(s);
+ s->state = SSL3_ST_SR_CLNT_HELLO_C;
+ } else {
+ if (s->s3->tmp.cert_request) {
+ 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;
#ifndef OPENSSL_NO_SCTP
- /* Add new shared key for SCTP-Auth,
- * will be ignored if no SCTP used.
- */
- snprintf((char *) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
- DTLS1_SCTP_AUTH_LABEL);
-
- SSL_export_keying_material(s, sctpauthkey,
- sizeof(sctpauthkey), labelbuffer,
- sizeof(labelbuffer), NULL, 0, 0);
-
- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
- sizeof(sctpauthkey), sctpauthkey);
+ /*
+ * Add new shared key for SCTP-Auth, will be ignored if no SCTP
+ * used.
+ */
+ snprintf((char *)labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
+ DTLS1_SCTP_AUTH_LABEL);
+
+ SSL_export_keying_material(s, sctpauthkey,
+ sizeof(sctpauthkey), labelbuffer,
+ sizeof(labelbuffer), NULL, 0, 0);
+
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
+ sizeof(sctpauthkey), sctpauthkey);
#endif
- s->state=SSL3_ST_SR_CERT_VRFY_A;
- s->init_num=0;
-
- if (ret == 2)
- {
- /* For the ECDH ciphersuites when
- * the client sends its ECDH pub key in
- * a certificate, the CertificateVerify
- * message is not sent.
- */
- s->state=SSL3_ST_SR_FINISHED_A;
- s->init_num = 0;
- }
- else
- {
- 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,
- NID_md5,
- &(s->s3->tmp.cert_verify_md[0]));
- s->method->ssl3_enc->cert_verify_mac(s,
- NID_sha1,
- &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]));
- }
- break;
-
- case SSL3_ST_SR_CERT_VRFY_A:
- case SSL3_ST_SR_CERT_VRFY_B:
- /*
- * This *should* be the first time we enable CCS, but be
- * extra careful about surrounding code changes. We need
- * to set this here because we don't know if we're
- * expecting a CertificateVerify or not.
- */
- if (!s->s3->change_cipher_spec)
- s->d1->change_cipher_spec_ok = 1;
- /* we should decide if we expected this one */
- ret=ssl3_get_cert_verify(s);
- if (ret <= 0) goto end;
+ s->state = SSL3_ST_SR_CERT_VRFY_A;
+ s->init_num = 0;
+
+ if (ret == 2) {
+ /*
+ * For the ECDH ciphersuites when the client sends its ECDH
+ * pub key in a certificate, the CertificateVerify message is
+ * not sent.
+ */
+ s->state = SSL3_ST_SR_FINISHED_A;
+ s->init_num = 0;
+ } else {
+ 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,
+ NID_md5,
+ &(s->s3->
+ tmp.cert_verify_md
+ [0]));
+ s->method->ssl3_enc->cert_verify_mac(s, NID_sha1,
+ &(s->s3->
+ tmp.cert_verify_md
+ [MD5_DIGEST_LENGTH]));
+ }
+ break;
+
+ case SSL3_ST_SR_CERT_VRFY_A:
+ case SSL3_ST_SR_CERT_VRFY_B:
+ /*
+ * This *should* be the first time we enable CCS, but be
+ * extra careful about surrounding code changes. We need
+ * to set this here because we don't know if we're
+ * expecting a CertificateVerify or not.
+ */
+ if (!s->s3->change_cipher_spec)
+ s->d1->change_cipher_spec_ok = 1;
+ /* we should decide if we expected this one */
+ ret = ssl3_get_cert_verify(s);
+ if (ret <= 0)
+ goto end;
#ifndef OPENSSL_NO_SCTP
- if (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&
- state == SSL_ST_RENEGOTIATE)
- s->state=DTLS1_SCTP_ST_SR_READ_SOCK;
- else
-#endif
- s->state=SSL3_ST_SR_FINISHED_A;
- s->init_num=0;
- break;
-
- case SSL3_ST_SR_FINISHED_A:
- case SSL3_ST_SR_FINISHED_B:
- /*
- * Enable CCS for resumed handshakes.
- * In a full handshake, we end up here through
- * SSL3_ST_SR_CERT_VRFY_B, so change_cipher_spec_ok was
- * already set. Receiving a CCS clears the flag, so make
- * sure not to re-enable it to ban duplicates.
- * s->s3->change_cipher_spec is set when a CCS is
- * processed in d1_pkt.c, and remains set until
- * the client's Finished message is read.
- */
- if (!s->s3->change_cipher_spec)
- s->d1->change_cipher_spec_ok = 1;
- ret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A,
- SSL3_ST_SR_FINISHED_B);
- if (ret <= 0) goto end;
- dtls1_stop_timer(s);
- if (s->hit)
- s->state=SSL_ST_OK;
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&
+ state == SSL_ST_RENEGOTIATE)
+ s->state = DTLS1_SCTP_ST_SR_READ_SOCK;
+ else
+#endif
+ s->state = SSL3_ST_SR_FINISHED_A;
+ s->init_num = 0;
+ break;
+
+ case SSL3_ST_SR_FINISHED_A:
+ case SSL3_ST_SR_FINISHED_B:
+ /*
+ * Enable CCS for resumed handshakes.
+ * In a full handshake, we end up here through
+ * SSL3_ST_SR_CERT_VRFY_B, so change_cipher_spec_ok was
+ * already set. Receiving a CCS clears the flag, so make
+ * sure not to re-enable it to ban duplicates.
+ * s->s3->change_cipher_spec is set when a CCS is
+ * processed in d1_pkt.c, and remains set until
+ * the client's Finished message is read.
+ */
+ if (!s->s3->change_cipher_spec)
+ s->d1->change_cipher_spec_ok = 1;
+ ret = ssl3_get_finished(s, SSL3_ST_SR_FINISHED_A,
+ SSL3_ST_SR_FINISHED_B);
+ if (ret <= 0)
+ goto end;
+ dtls1_stop_timer(s);
+ if (s->hit)
+ s->state = SSL_ST_OK;
#ifndef OPENSSL_NO_TLSEXT
- else if (s->tlsext_ticket_expected)
- s->state=SSL3_ST_SW_SESSION_TICKET_A;
+ else if (s->tlsext_ticket_expected)
+ s->state = SSL3_ST_SW_SESSION_TICKET_A;
#endif
- else
- s->state=SSL3_ST_SW_CHANGE_A;
- s->init_num=0;
- break;
+ else
+ s->state = SSL3_ST_SW_CHANGE_A;
+ s->init_num = 0;
+ break;
#ifndef OPENSSL_NO_TLSEXT
- case SSL3_ST_SW_SESSION_TICKET_A:
- case SSL3_ST_SW_SESSION_TICKET_B:
- ret=dtls1_send_newsession_ticket(s);
- if (ret <= 0) goto end;
- s->state=SSL3_ST_SW_CHANGE_A;
- s->init_num=0;
- break;
-
- case SSL3_ST_SW_CERT_STATUS_A:
- case SSL3_ST_SW_CERT_STATUS_B:
- ret=ssl3_send_cert_status(s);
- if (ret <= 0) goto end;
- s->state=SSL3_ST_SW_KEY_EXCH_A;
- s->init_num=0;
- break;
+ case SSL3_ST_SW_SESSION_TICKET_A:
+ case SSL3_ST_SW_SESSION_TICKET_B:
+ ret = dtls1_send_newsession_ticket(s);
+ if (ret <= 0)
+ goto end;
+ s->state = SSL3_ST_SW_CHANGE_A;
+ s->init_num = 0;
+ break;
+
+ case SSL3_ST_SW_CERT_STATUS_A:
+ case SSL3_ST_SW_CERT_STATUS_B:
+ ret = ssl3_send_cert_status(s);
+ if (ret <= 0)
+ goto end;
+ s->state = SSL3_ST_SW_KEY_EXCH_A;
+ s->init_num = 0;
+ break;
#endif
- case SSL3_ST_SW_CHANGE_A:
- case SSL3_ST_SW_CHANGE_B:
+ 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; }
+ 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);
+ ret = dtls1_send_change_cipher_spec(s,
+ SSL3_ST_SW_CHANGE_A,
+ SSL3_ST_SW_CHANGE_B);
- if (ret <= 0) goto end;
+ if (ret <= 0)
+ goto end;
#ifndef OPENSSL_NO_SCTP
- if (!s->hit)
- {
- /* Change to new shared key of SCTP-Auth,
- * will be ignored if no SCTP used.
- */
- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL);
- }
+ if (!s->hit) {
+ /*
+ * Change to new shared key of SCTP-Auth, will be ignored if
+ * no SCTP used.
+ */
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY,
+ 0, NULL);
+ }
#endif
- 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;
+ 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;
#ifndef OPENSSL_NO_SCTP
- /* Change to new shared key of SCTP-Auth,
- * will be ignored if no SCTP used.
- */
- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL);
+ /*
+ * Change to new shared key of SCTP-Auth, will be ignored if
+ * no SCTP used.
+ */
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY,
+ 0, NULL);
#endif
- }
- else
- {
- s->s3->tmp.next_state=SSL_ST_OK;
+ } else {
+ s->s3->tmp.next_state = SSL_ST_OK;
#ifndef OPENSSL_NO_SCTP
- if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
- {
- s->d1->next_state = s->s3->tmp.next_state;
- s->s3->tmp.next_state=DTLS1_SCTP_ST_SW_WRITE_SOCK;
- }
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s))) {
+ s->d1->next_state = s->s3->tmp.next_state;
+ s->s3->tmp.next_state = DTLS1_SCTP_ST_SW_WRITE_SOCK;
+ }
#endif
- }
- s->init_num=0;
- break;
+ }
+ s->init_num = 0;
+ break;
- case SSL_ST_OK:
- /* clean a few things up */
- ssl3_cleanup_key_block(s);
+ 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;
+ 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->renegotiate == 2) /* skipped if we just sent a HelloRequest */
- {
- s->renegotiate=0;
- 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;
- s->d1->next_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--;
+ /* remove buffering on output */
+ ssl_free_wbio_buffer(s);
+
+ s->init_num = 0;
+
+ if (s->renegotiate == 2) { /* skipped if we just sent a
+ * HelloRequest */
+ s->renegotiate = 0;
+ 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;
+ s->d1->next_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--;
#ifndef OPENSSL_NO_SCTP
- /* Notify SCTP BIO socket to leave handshake
- * mode and prevent stream identifier other
- * than 0. Will be ignored if no SCTP is used.
- */
- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);
+ /*
+ * Notify SCTP BIO socket to leave handshake mode and prevent stream
+ * identifier other than 0. Will be ignored if no SCTP is used.
+ */
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE,
+ s->in_handshake, NULL);
#endif
- if (cb != NULL)
- cb(s,SSL_CB_ACCEPT_EXIT,ret);
- return(ret);
- }
+ if (cb != NULL)
+ cb(s, SSL_CB_ACCEPT_EXIT, ret);
+ return (ret);
+}
int dtls1_send_hello_request(SSL *s)
- {
- unsigned char *p;
+{
+ 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);
+ 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;
+ 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 */
- }
+ /*
+ * 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));
- }
+ /* 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;
-
- 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;
- }
-
- *(p++) = (unsigned char) s->d1->cookie_len;
- 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;
- }
-
- /* s->state = DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B */
- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));
- }
+{
+ 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;
+
+ 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;
+ }
+
+ *(p++) = (unsigned char)s->d1->cookie_len;
+ 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;
+ }
+
+ /* 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;
-
- if (s->state == SSL3_ST_SW_SRVR_HELLO_A)
- {
- buf=(unsigned char *)s->init_buf->data;
- p=s->s3->server_random;
- ssl_fill_hello_random(s, 1, p, SSL3_RANDOM_SIZE);
- /* 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 */
- if (s->s3->tmp.new_cipher == NULL)
- return -1;
- i=ssl3_put_cipher_by_char(s->s3->tmp.new_cipher,p);
- p+=i;
-
- /* put the compression method */
+{
+ unsigned char *buf;
+ unsigned char *p, *d;
+ int i;
+ unsigned int sl;
+ unsigned long l;
+
+ if (s->state == SSL3_ST_SW_SRVR_HELLO_A) {
+ buf = (unsigned char *)s->init_buf->data;
+ p = s->s3->server_random;
+ ssl_fill_hello_random(s, 1, p, SSL3_RANDOM_SIZE);
+ /* 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 */
+ if (s->s3->tmp.new_cipher == NULL)
+ return -1;
+ i = ssl3_put_cipher_by_char(s->s3->tmp.new_cipher, p);
+ p += i;
+
+ /* put the compression method */
#ifdef OPENSSL_NO_COMP
- *(p++)=0;
+ *(p++) = 0;
#else
- if (s->s3->tmp.new_compression == NULL)
- *(p++)=0;
- else
- *(p++)=s->s3->tmp.new_compression->id;
+ if (s->s3->tmp.new_compression == NULL)
+ *(p++) = 0;
+ else
+ *(p++) = s->s3->tmp.new_compression->id;
#endif
#ifndef OPENSSL_NO_TLSEXT
- if (ssl_prepare_serverhello_tlsext(s) <= 0)
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO,SSL_R_SERVERHELLO_TLSEXT);
- return -1;
- }
- if ((p = ssl_add_serverhello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO,ERR_R_INTERNAL_ERROR);
- return -1;
- }
+ if (ssl_prepare_serverhello_tlsext(s) <= 0) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO, SSL_R_SERVERHELLO_TLSEXT);
+ return -1;
+ }
+ if ((p =
+ ssl_add_serverhello_tlsext(s, p,
+ buf + SSL3_RT_MAX_PLAIN_LENGTH)) ==
+ NULL) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
+ return -1;
+ }
#endif
- /* do the header */
- l=(p-d);
- d=buf;
+ /* do the header */
+ l = (p - d);
+ d = buf;
- d = dtls1_set_message_header(s, d, SSL3_MT_SERVER_HELLO, l, 0, l);
+ d = dtls1_set_message_header(s, d, SSL3_MT_SERVER_HELLO, l, 0, l);
- s->state=SSL3_ST_SW_SRVR_HELLO_B;
- /* number of bytes to write */
- s->init_num=p-buf;
- s->init_off=0;
+ s->state = SSL3_ST_SW_SRVR_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);
- }
+ /* buffer the message to handle re-xmits */
+ dtls1_buffer_message(s, 0);
+ }
- /* SSL3_ST_SW_SRVR_HELLO_B */
- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));
- }
+ /* SSL3_ST_SW_SRVR_HELLO_B */
+ return (dtls1_do_write(s, SSL3_RT_HANDSHAKE));
+}
int dtls1_send_server_done(SSL *s)
- {
- unsigned char *p;
+{
+ unsigned char *p;
- if (s->state == SSL3_ST_SW_SRVR_DONE_A)
- {
- p=(unsigned char *)s->init_buf->data;
+ 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);
+ /* 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;
+ 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);
- }
+ /* buffer the message to handle re-xmits */
+ dtls1_buffer_message(s, 0);
+ }
- /* SSL3_ST_SW_SRVR_DONE_B */
- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));
- }
+ /* SSL3_ST_SW_SRVR_DONE_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;
+ 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;
+ DH *dh = NULL, *dhp;
#endif
#ifndef OPENSSL_NO_ECDH
- EC_KEY *ecdh=NULL, *ecdhp;
- unsigned char *encodedPoint = NULL;
- int encodedlen = 0;
- int curve_id = 0;
- BN_CTX *bn_ctx = NULL;
+ EC_KEY *ecdh = NULL, *ecdhp;
+ unsigned char *encodedPoint = NULL;
+ int encodedlen = 0;
+ int curve_id = 0;
+ BN_CTX *bn_ctx = NULL;
#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->algorithm_mkey;
- cert=s->cert;
-
- buf=s->init_buf;
-
- r[0]=r[1]=r[2]=r[3]=NULL;
- n=0;
+ 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->algorithm_mkey;
+ 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
+ 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
+ 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
#ifndef OPENSSL_NO_ECDH
- if (type & SSL_kEECDH)
- {
- const EC_GROUP *group;
-
- ecdhp=cert->ecdh_tmp;
- if ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL))
- {
- ecdhp=s->cert->ecdh_tmp_cb(s,
- SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
- SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
- }
- if (ecdhp == NULL)
- {
- al=SSL_AD_HANDSHAKE_FAILURE;
- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY);
- goto f_err;
- }
-
- if (s->s3->tmp.ecdh != NULL)
- {
- EC_KEY_free(s->s3->tmp.ecdh);
- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
- goto err;
- }
-
- /* Duplicate the ECDH structure. */
- if (ecdhp == NULL)
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
- goto err;
- }
- if ((ecdh = EC_KEY_dup(ecdhp)) == NULL)
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
- goto err;
- }
-
- s->s3->tmp.ecdh=ecdh;
- if ((EC_KEY_get0_public_key(ecdh) == NULL) ||
- (EC_KEY_get0_private_key(ecdh) == NULL) ||
- (s->options & SSL_OP_SINGLE_ECDH_USE))
- {
- if(!EC_KEY_generate_key(ecdh))
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
- goto err;
- }
- }
-
- if (((group = EC_KEY_get0_group(ecdh)) == NULL) ||
- (EC_KEY_get0_public_key(ecdh) == NULL) ||
- (EC_KEY_get0_private_key(ecdh) == NULL))
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
- goto err;
- }
-
- if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
- (EC_GROUP_get_degree(group) > 163))
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
- goto err;
- }
-
- /* XXX: For now, we only support ephemeral ECDH
- * keys over named (not generic) curves. For
- * supported named curves, curve_id is non-zero.
- */
- if ((curve_id =
- tls1_ec_nid2curve_id(EC_GROUP_get_curve_name(group)))
- == 0)
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNSUPPORTED_ELLIPTIC_CURVE);
- goto err;
- }
-
- /* Encode the public key.
- * First check the size of encoding and
- * allocate memory accordingly.
- */
- encodedlen = EC_POINT_point2oct(group,
- EC_KEY_get0_public_key(ecdh),
- POINT_CONVERSION_UNCOMPRESSED,
- NULL, 0, NULL);
-
- encodedPoint = (unsigned char *)
- OPENSSL_malloc(encodedlen*sizeof(unsigned char));
- bn_ctx = BN_CTX_new();
- if ((encodedPoint == NULL) || (bn_ctx == NULL))
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
-
- encodedlen = EC_POINT_point2oct(group,
- EC_KEY_get0_public_key(ecdh),
- POINT_CONVERSION_UNCOMPRESSED,
- encodedPoint, encodedlen, bn_ctx);
-
- if (encodedlen == 0)
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
- goto err;
- }
-
- BN_CTX_free(bn_ctx); bn_ctx=NULL;
-
- /* XXX: For now, we only support named (not
- * generic) curves in ECDH ephemeral key exchanges.
- * In this situation, we need four additional bytes
- * to encode the entire ServerECDHParams
- * structure.
- */
- n = 4 + encodedlen;
-
- /* We'll generate the serverKeyExchange message
- * explicitly so we can set these to NULLs
- */
- r[0]=NULL;
- r[1]=NULL;
- r[2]=NULL;
- r[3]=NULL;
- }
- else
-#endif /* !OPENSSL_NO_ECDH */
+ if (type & SSL_kEECDH) {
+ const EC_GROUP *group;
+
+ ecdhp = cert->ecdh_tmp;
+ if ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL)) {
+ ecdhp = s->cert->ecdh_tmp_cb(s,
+ SSL_C_IS_EXPORT(s->s3->
+ tmp.new_cipher),
+ SSL_C_EXPORT_PKEYLENGTH(s->
+ s3->tmp.new_cipher));
+ }
+ if (ecdhp == NULL) {
+ al = SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,
+ SSL_R_MISSING_TMP_ECDH_KEY);
+ goto f_err;
+ }
+
+ if (s->s3->tmp.ecdh != NULL) {
+ EC_KEY_free(s->s3->tmp.ecdh);
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ /* Duplicate the ECDH structure. */
+ if (ecdhp == NULL) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_ECDH_LIB);
+ goto err;
+ }
+ if ((ecdh = EC_KEY_dup(ecdhp)) == NULL) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_ECDH_LIB);
+ goto err;
+ }
+
+ s->s3->tmp.ecdh = ecdh;
+ if ((EC_KEY_get0_public_key(ecdh) == NULL) ||
+ (EC_KEY_get0_private_key(ecdh) == NULL) ||
+ (s->options & SSL_OP_SINGLE_ECDH_USE)) {
+ if (!EC_KEY_generate_key(ecdh)) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,
+ ERR_R_ECDH_LIB);
+ goto err;
+ }
+ }
+
+ if (((group = EC_KEY_get0_group(ecdh)) == NULL) ||
+ (EC_KEY_get0_public_key(ecdh) == NULL) ||
+ (EC_KEY_get0_private_key(ecdh) == NULL)) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_ECDH_LIB);
+ goto err;
+ }
+
+ if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
+ (EC_GROUP_get_degree(group) > 163)) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,
+ SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
+ goto err;
+ }
+
+ /*
+ * XXX: For now, we only support ephemeral ECDH keys over named
+ * (not generic) curves. For supported named curves, curve_id is
+ * non-zero.
+ */
+ if ((curve_id =
+ tls1_ec_nid2curve_id(EC_GROUP_get_curve_name(group)))
+ == 0) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,
+ SSL_R_UNSUPPORTED_ELLIPTIC_CURVE);
+ goto err;
+ }
+
+ /*
+ * Encode the public key. First check the size of encoding and
+ * allocate memory accordingly.
+ */
+ encodedlen = EC_POINT_point2oct(group,
+ EC_KEY_get0_public_key(ecdh),
+ POINT_CONVERSION_UNCOMPRESSED,
+ NULL, 0, NULL);
+
+ encodedPoint = (unsigned char *)
+ OPENSSL_malloc(encodedlen * sizeof(unsigned char));
+ bn_ctx = BN_CTX_new();
+ if ((encodedPoint == NULL) || (bn_ctx == NULL)) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ encodedlen = EC_POINT_point2oct(group,
+ EC_KEY_get0_public_key(ecdh),
+ POINT_CONVERSION_UNCOMPRESSED,
+ encodedPoint, encodedlen, bn_ctx);
+
+ if (encodedlen == 0) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_KEY_EXCHANGE, ERR_R_ECDH_LIB);
+ goto err;
+ }
+
+ BN_CTX_free(bn_ctx);
+ bn_ctx = NULL;
+
+ /*
+ * XXX: For now, we only support named (not generic) curves in
+ * ECDH ephemeral key exchanges. In this situation, we need four
+ * additional bytes to encode the entire ServerECDHParams
+ * structure.
+ */
+ n = 4 + encodedlen;
+
+ /*
+ * We'll generate the serverKeyExchange message explicitly so we
+ * can set these to NULLs
+ */
+ r[0] = NULL;
+ r[1] = NULL;
+ r[2] = NULL;
+ r[3] = NULL;
+ } else
+#endif /* !OPENSSL_NO_ECDH */
#ifndef OPENSSL_NO_PSK
- if (type & SSL_kPSK)
- {
- /* reserve size for record length and PSK identity hint*/
- n+=2+strlen(s->ctx->psk_identity_hint);
- }
- else
-#endif /* !OPENSSL_NO_PSK */
- {
- 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->algorithm_auth & SSL_aNULL)
- && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))
- {
- if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher, NULL))
- == 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];
- }
+ if (type & SSL_kPSK) {
+ /*
+ * reserve size for record length and PSK identity hint
+ */
+ n += 2 + strlen(s->ctx->psk_identity_hint);
+ } else
+#endif /* !OPENSSL_NO_PSK */
+ {
+ 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->algorithm_auth & SSL_aNULL)
+ && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) {
+ if ((pkey = ssl_get_sign_pkey(s, s->s3->tmp.new_cipher, NULL))
+ == 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];
+ }
#ifndef OPENSSL_NO_ECDH
- if (type & SSL_kEECDH)
- {
- /* XXX: For now, we only support named (not generic) curves.
- * In this situation, the serverKeyExchange message has:
- * [1 byte CurveType], [2 byte CurveName]
- * [1 byte length of encoded point], followed by
- * the actual encoded point itself
- */
- *p = NAMED_CURVE_TYPE;
- p += 1;
- *p = 0;
- p += 1;
- *p = curve_id;
- p += 1;
- *p = encodedlen;
- p += 1;
- memcpy((unsigned char*)p,
- (unsigned char *)encodedPoint,
- encodedlen);
- OPENSSL_free(encodedPoint);
- encodedPoint = NULL;
- p += encodedlen;
- }
+ if (type & SSL_kEECDH) {
+ /*
+ * XXX: For now, we only support named (not generic) curves. In
+ * this situation, the serverKeyExchange message has: [1 byte
+ * CurveType], [2 byte CurveName] [1 byte length of encoded
+ * point], followed by the actual encoded point itself
+ */
+ *p = NAMED_CURVE_TYPE;
+ p += 1;
+ *p = 0;
+ p += 1;
+ *p = curve_id;
+ p += 1;
+ *p = encodedlen;
+ p += 1;
+ memcpy((unsigned char *)p,
+ (unsigned char *)encodedPoint, encodedlen);
+ OPENSSL_free(encodedPoint);
+ encodedPoint = NULL;
+ p += encodedlen;
+ }
#endif
#ifndef OPENSSL_NO_PSK
- if (type & SSL_kPSK)
- {
- /* copy PSK identity hint */
- s2n(strlen(s->ctx->psk_identity_hint), p);
- strncpy((char *)p, s->ctx->psk_identity_hint, strlen(s->ctx->psk_identity_hint));
- p+=strlen(s->ctx->psk_identity_hint);
- }
+ if (type & SSL_kPSK) {
+ /* copy PSK identity hint */
+ s2n(strlen(s->ctx->psk_identity_hint), p);
+ strncpy((char *)p, s->ctx->psk_identity_hint,
+ strlen(s->ctx->psk_identity_hint));
+ p += strlen(s->ctx->psk_identity_hint);
+ }
#endif
- /* 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. */
+ /* 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
+ 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
+ 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
#if !defined(OPENSSL_NO_ECDSA)
- if (pkey->type == EVP_PKEY_EC)
- {
- /* let's do ECDSA */
- EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), 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_ECDSA);
- goto err;
- }
- s2n(i,p);
- n+=i+2;
- }
- else
+ if (pkey->type == EVP_PKEY_EC) {
+ /* let's do ECDSA */
+ EVP_SignInit_ex(&md_ctx, EVP_ecdsa(), 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_ECDSA);
+ 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:
+ {
+ /* 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:
#ifndef OPENSSL_NO_ECDH
- if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
- BN_CTX_free(bn_ctx);
+ if (encodedPoint != NULL)
+ OPENSSL_free(encodedPoint);
+ BN_CTX_free(bn_ctx);
#endif
- EVP_MD_CTX_cleanup(&md_ctx);
- return(-1);
- }
+ 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;
- unsigned int msg_len;
-
- 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;
+{
+ unsigned char *p, *d;
+ int i, j, nl, off, n;
+ STACK_OF(X509_NAME) *sk = NULL;
+ X509_NAME *name;
+ BUF_MEM *buf;
+ unsigned int msg_len;
+
+ 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;
+ 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 ? */
- msg_len = s->init_num - DTLS1_HM_HEADER_LENGTH;
- dtls1_set_message_header(s, (void *)s->init_buf->data,
- SSL3_MT_CERTIFICATE_REQUEST, msg_len, 0, msg_len);
+ /* XDTLS: set message header ? */
+ msg_len = s->init_num - DTLS1_HM_HEADER_LENGTH;
+ dtls1_set_message_header(s, (void *)s->init_buf->data,
+ SSL3_MT_CERTIFICATE_REQUEST, msg_len, 0,
+ msg_len);
- /* buffer the message to handle re-xmits */
- dtls1_buffer_message(s, 0);
+ /* buffer the message to handle re-xmits */
+ dtls1_buffer_message(s, 0);
- s->state = SSL3_ST_SW_CERT_REQ_B;
- }
+ 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);
- }
+ /* 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 */
- if ((s->s3->tmp.new_cipher->algorithm_mkey != SSL_kKRB5) ||
- (s->s3->tmp.new_cipher->algorithm_auth != SSL_aKRB5))
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_CERTIFICATE,ERR_R_INTERNAL_ERROR);
- return(0);
- }
- }
-
- l=dtls1_output_cert_chain(s,x);
- if (!l)
- {
- SSLerr(SSL_F_DTLS1_SEND_SERVER_CERTIFICATE,ERR_R_INTERNAL_ERROR);
- return(0);
- }
- 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));
- }
+{
+ 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 */
+ if ((s->s3->tmp.new_cipher->algorithm_mkey != SSL_kKRB5) ||
+ (s->s3->tmp.new_cipher->algorithm_auth != SSL_aKRB5)) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_CERTIFICATE,
+ ERR_R_INTERNAL_ERROR);
+ return (0);
+ }
+ }
+
+ l = dtls1_output_cert_chain(s, x);
+ if (!l) {
+ SSLerr(SSL_F_DTLS1_SEND_SERVER_CERTIFICATE, ERR_R_INTERNAL_ERROR);
+ return (0);
+ }
+ 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));
+}
#ifndef OPENSSL_NO_TLSEXT
int dtls1_send_newsession_ticket(SSL *s)
- {
- if (s->state == SSL3_ST_SW_SESSION_TICKET_A)
- {
- unsigned char *p, *senc, *macstart;
- int len, slen;
- unsigned int hlen, msg_len;
- EVP_CIPHER_CTX ctx;
- HMAC_CTX hctx;
- SSL_CTX *tctx = s->initial_ctx;
- unsigned char iv[EVP_MAX_IV_LENGTH];
- unsigned char key_name[16];
-
- /* get session encoding length */
- slen = i2d_SSL_SESSION(s->session, NULL);
- /* Some length values are 16 bits, so forget it if session is
- * too long
- */
- if (slen > 0xFF00)
- return -1;
- /* Grow buffer if need be: the length calculation is as
- * follows 12 (DTLS handshake message header) +
- * 4 (ticket lifetime hint) + 2 (ticket length) +
- * 16 (key name) + max_iv_len (iv length) +
- * session_length + max_enc_block_size (max encrypted session
- * length) + max_md_size (HMAC).
- */
- if (!BUF_MEM_grow(s->init_buf,
- DTLS1_HM_HEADER_LENGTH + 22 + EVP_MAX_IV_LENGTH +
- EVP_MAX_BLOCK_LENGTH + EVP_MAX_MD_SIZE + slen))
- return -1;
- senc = OPENSSL_malloc(slen);
- if (!senc)
- return -1;
- p = senc;
- i2d_SSL_SESSION(s->session, &p);
-
- p=(unsigned char *)&(s->init_buf->data[DTLS1_HM_HEADER_LENGTH]);
- EVP_CIPHER_CTX_init(&ctx);
- HMAC_CTX_init(&hctx);
- /* Initialize HMAC and cipher contexts. If callback present
- * it does all the work otherwise use generated values
- * from parent ctx.
- */
- if (tctx->tlsext_ticket_key_cb)
- {
- if (tctx->tlsext_ticket_key_cb(s, key_name, iv, &ctx,
- &hctx, 1) < 0)
- {
- OPENSSL_free(senc);
- return -1;
- }
- }
- else
- {
- RAND_pseudo_bytes(iv, 16);
- EVP_EncryptInit_ex(&ctx, EVP_aes_128_cbc(), NULL,
- tctx->tlsext_tick_aes_key, iv);
- HMAC_Init_ex(&hctx, tctx->tlsext_tick_hmac_key, 16,
- tlsext_tick_md(), NULL);
- memcpy(key_name, tctx->tlsext_tick_key_name, 16);
- }
- l2n(s->session->tlsext_tick_lifetime_hint, p);
- /* Skip ticket length for now */
- p += 2;
- /* Output key name */
- macstart = p;
- memcpy(p, key_name, 16);
- p += 16;
- /* output IV */
- memcpy(p, iv, EVP_CIPHER_CTX_iv_length(&ctx));
- p += EVP_CIPHER_CTX_iv_length(&ctx);
- /* Encrypt session data */
- EVP_EncryptUpdate(&ctx, p, &len, senc, slen);
- p += len;
- EVP_EncryptFinal(&ctx, p, &len);
- p += len;
- EVP_CIPHER_CTX_cleanup(&ctx);
-
- HMAC_Update(&hctx, macstart, p - macstart);
- HMAC_Final(&hctx, p, &hlen);
- HMAC_CTX_cleanup(&hctx);
-
- p += hlen;
- /* Now write out lengths: p points to end of data written */
- /* Total length */
- len = p - (unsigned char *)(s->init_buf->data);
- /* Ticket length */
- p=(unsigned char *)&(s->init_buf->data[DTLS1_HM_HEADER_LENGTH]) + 4;
- s2n(len - DTLS1_HM_HEADER_LENGTH - 6, p);
-
- /* number of bytes to write */
- s->init_num= len;
- s->state=SSL3_ST_SW_SESSION_TICKET_B;
- s->init_off=0;
- OPENSSL_free(senc);
-
- /* XDTLS: set message header ? */
- msg_len = s->init_num - DTLS1_HM_HEADER_LENGTH;
- dtls1_set_message_header(s, (void *)s->init_buf->data,
- SSL3_MT_NEWSESSION_TICKET, msg_len, 0, msg_len);
-
- /* buffer the message to handle re-xmits */
- dtls1_buffer_message(s, 0);
- }
-
- /* SSL3_ST_SW_SESSION_TICKET_B */
- return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));
- }
+{
+ if (s->state == SSL3_ST_SW_SESSION_TICKET_A) {
+ unsigned char *p, *senc, *macstart;
+ int len, slen;
+ unsigned int hlen, msg_len;
+ EVP_CIPHER_CTX ctx;
+ HMAC_CTX hctx;
+ SSL_CTX *tctx = s->initial_ctx;
+ unsigned char iv[EVP_MAX_IV_LENGTH];
+ unsigned char key_name[16];
+
+ /* get session encoding length */
+ slen = i2d_SSL_SESSION(s->session, NULL);
+ /*
+ * Some length values are 16 bits, so forget it if session is too
+ * long
+ */
+ if (slen > 0xFF00)
+ return -1;
+ /*
+ * Grow buffer if need be: the length calculation is as follows 12
+ * (DTLS handshake message header) + 4 (ticket lifetime hint) + 2
+ * (ticket length) + 16 (key name) + max_iv_len (iv length) +
+ * session_length + max_enc_block_size (max encrypted session length)
+ * + max_md_size (HMAC).
+ */
+ if (!BUF_MEM_grow(s->init_buf,
+ DTLS1_HM_HEADER_LENGTH + 22 + EVP_MAX_IV_LENGTH +
+ EVP_MAX_BLOCK_LENGTH + EVP_MAX_MD_SIZE + slen))
+ return -1;
+ senc = OPENSSL_malloc(slen);
+ if (!senc)
+ return -1;
+ p = senc;
+ i2d_SSL_SESSION(s->session, &p);
+
+ p = (unsigned char *)&(s->init_buf->data[DTLS1_HM_HEADER_LENGTH]);
+ EVP_CIPHER_CTX_init(&ctx);
+ HMAC_CTX_init(&hctx);
+ /*
+ * Initialize HMAC and cipher contexts. If callback present it does
+ * all the work otherwise use generated values from parent ctx.
+ */
+ if (tctx->tlsext_ticket_key_cb) {
+ if (tctx->tlsext_ticket_key_cb(s, key_name, iv, &ctx,
+ &hctx, 1) < 0) {
+ OPENSSL_free(senc);
+ return -1;
+ }
+ } else {
+ RAND_pseudo_bytes(iv, 16);
+ EVP_EncryptInit_ex(&ctx, EVP_aes_128_cbc(), NULL,
+ tctx->tlsext_tick_aes_key, iv);
+ HMAC_Init_ex(&hctx, tctx->tlsext_tick_hmac_key, 16,
+ tlsext_tick_md(), NULL);
+ memcpy(key_name, tctx->tlsext_tick_key_name, 16);
+ }
+ l2n(s->session->tlsext_tick_lifetime_hint, p);
+ /* Skip ticket length for now */
+ p += 2;
+ /* Output key name */
+ macstart = p;
+ memcpy(p, key_name, 16);
+ p += 16;
+ /* output IV */
+ memcpy(p, iv, EVP_CIPHER_CTX_iv_length(&ctx));
+ p += EVP_CIPHER_CTX_iv_length(&ctx);
+ /* Encrypt session data */
+ EVP_EncryptUpdate(&ctx, p, &len, senc, slen);
+ p += len;
+ EVP_EncryptFinal(&ctx, p, &len);
+ p += len;
+ EVP_CIPHER_CTX_cleanup(&ctx);
+
+ HMAC_Update(&hctx, macstart, p - macstart);
+ HMAC_Final(&hctx, p, &hlen);
+ HMAC_CTX_cleanup(&hctx);
+
+ p += hlen;
+ /* Now write out lengths: p points to end of data written */
+ /* Total length */
+ len = p - (unsigned char *)(s->init_buf->data);
+ /* Ticket length */
+ p = (unsigned char *)&(s->init_buf->data[DTLS1_HM_HEADER_LENGTH]) + 4;
+ s2n(len - DTLS1_HM_HEADER_LENGTH - 6, p);
+
+ /* number of bytes to write */
+ s->init_num = len;
+ s->state = SSL3_ST_SW_SESSION_TICKET_B;
+ s->init_off = 0;
+ OPENSSL_free(senc);
+
+ /* XDTLS: set message header ? */
+ msg_len = s->init_num - DTLS1_HM_HEADER_LENGTH;
+ dtls1_set_message_header(s, (void *)s->init_buf->data,
+ SSL3_MT_NEWSESSION_TICKET, msg_len, 0,
+ msg_len);
+
+ /* buffer the message to handle re-xmits */
+ dtls1_buffer_message(s, 0);
+ }
+
+ /* SSL3_ST_SW_SESSION_TICKET_B */
+ return (dtls1_do_write(s, SSL3_RT_HANDSHAKE));
+}
#endif