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-rw-r--r--ssl/s2_lib.c769
1 files changed, 389 insertions, 380 deletions
diff --git a/ssl/s2_lib.c b/ssl/s2_lib.c
index c63be3052b28..7e3674a685fb 100644
--- a/ssl/s2_lib.c
+++ b/ssl/s2_lib.c
@@ -5,21 +5,21 @@
* 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:
@@ -34,10 +34,10 @@
* 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
@@ -49,7 +49,7 @@
* 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
@@ -63,7 +63,7 @@
* 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
@@ -111,448 +111,457 @@
#include "ssl_locl.h"
#ifndef OPENSSL_NO_SSL2
-#include <stdio.h>
-#include <openssl/objects.h>
-#include <openssl/evp.h>
-#include <openssl/md5.h>
+# include <stdio.h>
+# include <openssl/objects.h>
+# include <openssl/evp.h>
+# include <openssl/md5.h>
-const char ssl2_version_str[]="SSLv2" OPENSSL_VERSION_PTEXT;
+const char ssl2_version_str[] = "SSLv2" OPENSSL_VERSION_PTEXT;
-#define SSL2_NUM_CIPHERS (sizeof(ssl2_ciphers)/sizeof(SSL_CIPHER))
+# define SSL2_NUM_CIPHERS (sizeof(ssl2_ciphers)/sizeof(SSL_CIPHER))
/* list of available SSLv2 ciphers (sorted by id) */
-OPENSSL_GLOBAL const SSL_CIPHER ssl2_ciphers[]={
-#if 0
+OPENSSL_GLOBAL const SSL_CIPHER ssl2_ciphers[] = {
+# if 0
/* NULL_WITH_MD5 v3 */
- {
- 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,
- },
-#endif
+ {
+ 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,
+ },
+# 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,
- },
+ {
+ 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,
+ },
/* 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,
- },
+ {
+ 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,
+ },
/* 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,
- },
+ {
+ 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,
+ },
/* 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,
- },
-
-#ifndef OPENSSL_NO_IDEA
+ {
+ 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,
+ },
+
+# ifndef OPENSSL_NO_IDEA
/* IDEA_128_CBC_WITH_MD5 */
- {
- 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,
- },
-#endif
+ {
+ 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,
+ },
+# 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,
- },
+ {
+ 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,
+ },
/* 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,
- 112,
- 168,
- },
-
-#if 0
+ {
+ 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,
+ 112,
+ 168,
+ },
+
+# if 0
/* RC4_64_WITH_MD5 */
- {
- 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,
- },
-#endif
+ {
+ 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,
+ },
+# endif
-#if 0
+# if 0
/* NULL SSLeay (testing) */
- {
- 0,
- SSL2_TXT_NULL,
- SSL2_CK_NULL,
- 0,
- 0,
- 0,
- 0,
- SSL_SSLV2,
- SSL_STRONG_NONE,
- 0,
- 0,
- 0,
- },
-#endif
+ {
+ 0,
+ SSL2_TXT_NULL,
+ SSL2_CK_NULL,
+ 0,
+ 0,
+ 0,
+ 0,
+ SSL_SSLV2,
+ SSL_STRONG_NONE,
+ 0,
+ 0,
+ 0,
+ },
+# endif
/* end of list :-) */
- };
+};
long ssl2_default_timeout(void)
- {
- return(300);
- }
+{
+ return (300);
+}
int ssl2_num_ciphers(void)
- {
- return(SSL2_NUM_CIPHERS);
- }
+{
+ return (SSL2_NUM_CIPHERS);
+}
const SSL_CIPHER *ssl2_get_cipher(unsigned int u)
- {
- if (u < SSL2_NUM_CIPHERS)
- return(&(ssl2_ciphers[SSL2_NUM_CIPHERS-1-u]));
- else
- return(NULL);
- }
+{
+ 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;
- }
+{
+ return SSL_in_init(s) ? 0 : s->s2->ract_data_length;
+}
int ssl2_new(SSL *s)
- {
- SSL2_STATE *s2;
+{
+ SSL2_STATE *s2;
- if ((s2=OPENSSL_malloc(sizeof *s2)) == NULL) goto err;
- memset(s2,0,sizeof *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
+# if SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER + 3 > SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER + 2
# error "assertion failed"
-#endif
+# 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);
- }
+ 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;
- }
+{
+ 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;
+{
+ SSL2_STATE *s2;
+ unsigned char *rbuf, *wbuf;
- s2=s->s2;
+ s2 = s->s2;
- rbuf=s2->rbuf;
- wbuf=s2->wbuf;
+ rbuf = s2->rbuf;
+ wbuf = s2->wbuf;
- memset(s2,0,sizeof *s2);
+ 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;
- }
+ 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;
- case SSL_CTRL_CHECK_PROTO_VERSION:
- return ssl3_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, larg, parg);
- default:
- break;
- }
- return(ret);
- }
-
-long ssl2_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
- {
- return(0);
- }
+{
+ int ret = 0;
+
+ switch (cmd) {
+ case SSL_CTRL_GET_SESSION_REUSED:
+ ret = s->hit;
+ break;
+ case SSL_CTRL_CHECK_PROTO_VERSION:
+ return ssl3_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, larg, parg);
+ 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 */
+{
+ 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
+ */
const SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p)
- {
- SSL_CIPHER c;
- const SSL_CIPHER *cp;
- unsigned long id;
-
- id=0x02000000L|((unsigned long)p[0]<<16L)|
- ((unsigned long)p[1]<<8L)|(unsigned long)p[2];
- c.id=id;
- cp = OBJ_bsearch_ssl_cipher_id(&c, ssl2_ciphers, SSL2_NUM_CIPHERS);
- if ((cp == NULL) || (cp->valid == 0))
- return NULL;
- else
- return cp;
- }
+{
+ SSL_CIPHER c;
+ const SSL_CIPHER *cp;
+ unsigned long id;
+
+ id = 0x02000000L | ((unsigned long)p[0] << 16L) |
+ ((unsigned long)p[1] << 8L) | (unsigned long)p[2];
+ c.id = id;
+ cp = OBJ_bsearch_ssl_cipher_id(&c, ssl2_ciphers, SSL2_NUM_CIPHERS);
+ 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 && l != SSL3_CK_FALLBACK_SCSV) return(0);
- p[0]=((unsigned char)(l>>16L))&0xFF;
- p[1]=((unsigned char)(l>> 8L))&0xFF;
- p[2]=((unsigned char)(l ))&0xFF;
- }
- return(3);
- }
+{
+ long l;
+
+ if (p != NULL) {
+ l = c->id;
+ if ((l & 0xff000000) != 0x02000000 && l != SSL3_CK_FALLBACK_SCSV)
+ 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;
- int md_size;
-
- 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;
- }
- md_size = EVP_MD_size(md5);
- if (md_size < 0)
- return 0;
- for (i=0; i<s->s2->key_material_length; i += md_size)
- {
- if (((km - s->s2->key_material) + md_size) >
- (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 += md_size;
- }
-
- EVP_MD_CTX_cleanup(&ctx);
- return 1;
- }
+{
+ unsigned int i;
+ EVP_MD_CTX ctx;
+ unsigned char *km;
+ unsigned char c = '0';
+ const EVP_MD *md5;
+ int md_size;
+
+ 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;
+ }
+ md_size = EVP_MD_size(md5);
+ if (md_size < 0)
+ return 0;
+ for (i = 0; i < s->s2->key_material_length; i += md_size) {
+ if (((km - s->s2->key_material) + md_size) >
+ (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 += md_size;
+ }
+
+ 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);
- }
- }
+{
+ 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;
+{
+ 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;
+ buf[0] = SSL2_MT_ERROR;
+ buf[1] = (s->error_code >> 8) & 0xff;
+ buf[2] = (s->error_code) & 0xff;
-/* state=s->rwstate;*/
+/* 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);
+ 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 == error) s->rwstate=state; */
- if (i < 0)
- s->error=error;
- else
- {
- s->error=error-i;
+ 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 */
- }
- }
+ if (s->error == 0)
+ if (s->msg_callback) {
+ /* ERROR */
+ s->msg_callback(1, s->version, 0, buf, 3, s,
+ s->msg_callback_arg);
+ }
+ }
+}
int ssl2_shutdown(SSL *s)
- {
- s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
- return(1);
- }
-#else /* !OPENSSL_NO_SSL2 */
+{
+ s->shutdown = (SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
+ return (1);
+}
+#else /* !OPENSSL_NO_SSL2 */
# if PEDANTIC
-static void *dummy=&dummy;
+static void *dummy = &dummy;
# endif
#endif