Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2 individually
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 033c9fa..06eeb71 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -158,6 +158,7 @@
/*
* Key material generation
*/
+#if defined(POLARSSL_SSL_PROTO_SSL3)
static int ssl3_prf( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@@ -202,7 +203,9 @@
return( 0 );
}
+#endif /* POLARSSL_SSL_PROTO_SSL3 */
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1)
static int tls1_prf( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@@ -263,7 +266,10 @@
return( 0 );
}
+#endif /* POLARSSL_SSL_PROTO_TLS1) || POLARSSL_SSL_PROTO_TLS1_1 */
+#if defined(POLARSSL_SSL_PROTO_TLS1_2)
+#if defined(POLARSSL_SHA256_C)
static int tls_prf_sha256( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@@ -303,6 +309,7 @@
return( 0 );
}
+#endif /* POLARSSL_SHA256_C */
#if defined(POLARSSL_SHA512_C)
static int tls_prf_sha384( const unsigned char *secret, size_t slen,
@@ -344,25 +351,39 @@
return( 0 );
}
-#endif
+#endif /* POLARSSL_SHA512_C */
+#endif /* POLARSSL_SSL_PROTO_TLS1_2 */
static void ssl_update_checksum_start(ssl_context *, const unsigned char *, size_t);
+
+#if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_1)
static void ssl_update_checksum_md5sha1(ssl_context *, const unsigned char *, size_t);
-static void ssl_update_checksum_sha256(ssl_context *, const unsigned char *, size_t);
+#endif
+#if defined(POLARSSL_SSL_PROTO_SSL3)
static void ssl_calc_verify_ssl(ssl_context *,unsigned char *);
-static void ssl_calc_verify_tls(ssl_context *,unsigned char *);
-static void ssl_calc_verify_tls_sha256(ssl_context *,unsigned char *);
-
static void ssl_calc_finished_ssl(ssl_context *,unsigned char *,int);
+#endif
+
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1)
+static void ssl_calc_verify_tls(ssl_context *,unsigned char *);
static void ssl_calc_finished_tls(ssl_context *,unsigned char *,int);
+#endif
+
+#if defined(POLARSSL_SSL_PROTO_TLS1_2)
+#if defined(POLARSSL_SHA256_C)
+static void ssl_update_checksum_sha256(ssl_context *, const unsigned char *, size_t);
+static void ssl_calc_verify_tls_sha256(ssl_context *,unsigned char *);
static void ssl_calc_finished_tls_sha256(ssl_context *,unsigned char *,int);
+#endif
#if defined(POLARSSL_SHA512_C)
static void ssl_update_checksum_sha384(ssl_context *, const unsigned char *, size_t);
static void ssl_calc_verify_tls_sha384(ssl_context *,unsigned char *);
static void ssl_calc_finished_tls_sha384(ssl_context *,unsigned char *,int);
#endif
+#endif
int ssl_derive_keys( ssl_context *ssl )
{
@@ -375,7 +396,6 @@
unsigned int iv_copy_len;
const cipher_info_t *cipher_info;
const md_info_t *md_info;
- int ret;
ssl_session *session = ssl->session_negotiate;
ssl_transform *transform = ssl->transform_negotiate;
@@ -402,33 +422,47 @@
/*
* Set appropriate PRF function and other SSL / TLS / TLS1.2 functions
*/
+#if defined(POLARSSL_SSL_PROTO_SSL3)
if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
{
handshake->tls_prf = ssl3_prf;
handshake->calc_verify = ssl_calc_verify_ssl;
handshake->calc_finished = ssl_calc_finished_ssl;
}
- else if( ssl->minor_ver < SSL_MINOR_VERSION_3 )
+ else
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1)
+ if( ssl->minor_ver < SSL_MINOR_VERSION_3 )
{
handshake->tls_prf = tls1_prf;
handshake->calc_verify = ssl_calc_verify_tls;
handshake->calc_finished = ssl_calc_finished_tls;
}
+ else
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1_2)
#if defined(POLARSSL_SHA512_C)
- else if( transform->ciphersuite_info->mac ==
- POLARSSL_MD_SHA384 )
+ if( ssl->minor_ver == SSL_MINOR_VERSION_3 &&
+ transform->ciphersuite_info->mac == POLARSSL_MD_SHA384 )
{
handshake->tls_prf = tls_prf_sha384;
handshake->calc_verify = ssl_calc_verify_tls_sha384;
handshake->calc_finished = ssl_calc_finished_tls_sha384;
}
-#endif
else
+#endif
+#if defined(POLARSSL_SHA256_C)
+ if( ssl->minor_ver == SSL_MINOR_VERSION_3 )
{
handshake->tls_prf = tls_prf_sha256;
handshake->calc_verify = ssl_calc_verify_tls_sha256;
handshake->calc_finished = ssl_calc_finished_tls_sha256;
}
+ else
+#endif
+#endif
+ /* Should never happen */
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
/*
* SSLv3:
@@ -437,7 +471,7 @@
* MD5( premaster + SHA1( 'BB' + premaster + randbytes ) ) +
* MD5( premaster + SHA1( 'CCC' + premaster + randbytes ) )
*
- * TLSv1:
+ * TLSv1+:
* master = PRF( premaster, "master secret", randbytes )[0..47]
*/
if( handshake->resume == 0 )
@@ -502,6 +536,8 @@
{
if( md_info->type != POLARSSL_MD_NONE )
{
+ int ret;
+
if( ( ret = md_init_ctx( &transform->md_ctx_enc, md_info ) ) != 0 )
{
SSL_DEBUG_RET( 1, "md_init_ctx", ret );
@@ -583,16 +619,25 @@
iv_copy_len );
}
+#if defined(POLARSSL_SSL_PROTO_SSL3)
if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
{
memcpy( transform->mac_enc, mac_enc, transform->maclen );
memcpy( transform->mac_dec, mac_dec, transform->maclen );
}
else
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_2)
+ if( ssl->minor_ver >= SSL_MINOR_VERSION_1 )
{
md_hmac_starts( &transform->md_ctx_enc, mac_enc, transform->maclen );
md_hmac_starts( &transform->md_ctx_dec, mac_dec, transform->maclen );
}
+ else
+#endif
+ /* Should never happen */
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
#if defined(POLARSSL_SSL_HW_RECORD_ACCEL)
if( ssl_hw_record_init != NULL)
@@ -701,6 +746,7 @@
return( 0 );
}
+#if defined(POLARSSL_SSL_PROTO_SSL3)
void ssl_calc_verify_ssl( ssl_context *ssl, unsigned char hash[36] )
{
md5_context md5;
@@ -741,7 +787,9 @@
return;
}
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1)
void ssl_calc_verify_tls( ssl_context *ssl, unsigned char hash[36] )
{
md5_context md5;
@@ -760,7 +808,10 @@
return;
}
+#endif /* POLARSSL_SSL_PROTO_TLS1 || POLARSSL_SSL_PROTO_TLS1_1 */
+#if defined(POLARSSL_SSL_PROTO_TLS1_2)
+#if defined(POLARSSL_SHA256_C)
void ssl_calc_verify_tls_sha256( ssl_context *ssl, unsigned char hash[32] )
{
sha256_context sha256;
@@ -775,6 +826,7 @@
return;
}
+#endif /* POLARSSL_SHA256_C */
#if defined(POLARSSL_SHA512_C)
void ssl_calc_verify_tls_sha384( ssl_context *ssl, unsigned char hash[48] )
@@ -791,8 +843,10 @@
return;
}
-#endif
+#endif /* POLARSSL_SHA512_C */
+#endif /* POLARSSL_SSL_PROTO_TLS1_2 */
+#if defined(POLARSSL_SSL_PROTO_SSL3)
/*
* SSLv3.0 MAC functions
*/
@@ -833,6 +887,7 @@
md_update( md_ctx, buf + len, md_size );
md_finish( md_ctx, buf + len );
}
+#endif /* POLARSSL_SSL_PROTO_SSL3 */
/*
* Encryption/decryption functions
@@ -846,6 +901,7 @@
/*
* Add MAC then encrypt
*/
+#if defined(POLARSSL_SSL_PROTO_SSL3)
if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
{
ssl_mac( &ssl->transform_out->md_ctx_enc,
@@ -854,6 +910,10 @@
ssl->out_ctr, ssl->out_msgtype );
}
else
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_2)
+ if( ssl->minor_ver >= SSL_MINOR_VERSION_1 )
{
md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_ctr, 13 );
md_hmac_update( &ssl->transform_out->md_ctx_enc,
@@ -862,6 +922,10 @@
ssl->out_msg + ssl->out_msglen );
md_hmac_reset( &ssl->transform_out->md_ctx_enc );
}
+ else
+#endif
+ /* Should never happen */
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
SSL_DEBUG_BUF( 4, "computed mac",
ssl->out_msg + ssl->out_msglen, ssl->transform_out->maclen );
@@ -977,6 +1041,7 @@
enc_msglen = ssl->out_msglen;
enc_msg = ssl->out_msg;
+#if defined(POLARSSL_SSL_PROTO_TLS1_1) || defined(POLARSSL_SSL_PROTO_TLS1_2)
/*
* Prepend per-record IV for block cipher in TLS v1.1 and up as per
* Method 1 (6.2.3.2. in RFC4346 and RFC5246)
@@ -1001,6 +1066,7 @@
enc_msglen = ssl->out_msglen;
ssl->out_msglen += ssl->transform_out->ivlen;
}
+#endif /* POLARSSL_SSL_PROTO_TLS1_1 || POLARSSL_SSL_PROTO_TLS1_2 */
SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
"including %d bytes of IV and %d bytes of padding",
@@ -1165,8 +1231,10 @@
return( POLARSSL_ERR_SSL_INVALID_MAC );
}
+#if defined(POLARSSL_SSL_PROTO_TLS1_1) || defined(POLARSSL_SSL_PROTO_TLS1_2)
if( ssl->minor_ver >= SSL_MINOR_VERSION_2 )
minlen += ssl->transform_in->ivlen;
+#endif
if( ssl->in_msglen < minlen + ssl->transform_in->ivlen ||
ssl->in_msglen < minlen + ssl->transform_in->maclen + 1 )
@@ -1180,6 +1248,7 @@
dec_msg = ssl->in_msg;
dec_msg_result = ssl->in_msg;
+#if defined(POLARSSL_SSL_PROTO_TLS1_1) || defined(POLARSSL_SSL_PROTO_TLS1_2)
/*
* Initialize for prepended IV for block cipher in TLS v1.1 and up
*/
@@ -1191,6 +1260,7 @@
for( i = 0; i < ssl->transform_in->ivlen; i++ )
ssl->transform_in->iv_dec[i] = ssl->in_iv[i];
}
+#endif /* POLARSSL_SSL_PROTO_TLS1_1 || POLARSSL_SSL_PROTO_TLS1_2 */
switch( ssl->transform_in->ciphersuite_info->cipher )
{
@@ -1242,6 +1312,7 @@
correct = 0;
}
+#if defined(POLARSSL_SSL_PROTO_SSL3)
if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
{
if( padlen > ssl->transform_in->ivlen )
@@ -1255,6 +1326,10 @@
}
}
else
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_2)
+ if( ssl->minor_ver > SSL_MINOR_VERSION_0 )
{
/*
* TLSv1+: always check the padding up to the first failure
@@ -1278,6 +1353,11 @@
#endif
padlen &= correct * 0x1FF;
}
+ else
+#endif /* POLARSSL_SSL_PROTO_TLS1 || POLARSSL_SSL_PROTO_TLS1_1 || \
+ POLARSSL_SSL_PROTO_TLS1_2 */
+ /* Should never happen */
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
}
SSL_DEBUG_BUF( 4, "raw buffer after decryption",
@@ -1293,6 +1373,7 @@
memcpy( tmp, ssl->in_msg + ssl->in_msglen, ssl->transform_in->maclen );
+#if defined(POLARSSL_SSL_PROTO_SSL3)
if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
{
ssl_mac( &ssl->transform_in->md_ctx_dec,
@@ -1301,6 +1382,10 @@
ssl->in_ctr, ssl->in_msgtype );
}
else
+#endif /* POLARSSL_SSL_PROTO_SSL3 */
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_2)
+ if( ssl->minor_ver > SSL_MINOR_VERSION_0 )
{
/*
* Process MAC and always update for padlen afterwards to make
@@ -1331,6 +1416,11 @@
md_hmac_reset( &ssl->transform_in->md_ctx_dec );
}
+ else
+#endif /* POLARSSL_SSL_PROTO_TLS1 || POLARSSL_SSL_PROTO_TLS1_1 || \
+ POLARSSL_SSL_PROTO_TLS1_2 */
+ /* Should never happen */
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
SSL_DEBUG_BUF( 4, "message mac", tmp, ssl->transform_in->maclen );
SSL_DEBUG_BUF( 4, "computed mac", ssl->in_msg + ssl->in_msglen,
@@ -1742,13 +1832,17 @@
return( POLARSSL_ERR_SSL_INVALID_RECORD );
}
+#if defined(POLARSSL_SSL_PROTO_SSL3)
if( ssl->minor_ver == SSL_MINOR_VERSION_0 &&
ssl->in_msglen > ssl->transform_in->minlen + SSL_MAX_CONTENT_LEN )
{
SSL_DEBUG_MSG( 1, ( "bad message length" ) );
return( POLARSSL_ERR_SSL_INVALID_RECORD );
}
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_2)
/*
* TLS encrypted messages can have up to 256 bytes of padding
*/
@@ -1758,6 +1852,7 @@
SSL_DEBUG_MSG( 1, ( "bad message length" ) );
return( POLARSSL_ERR_SSL_INVALID_RECORD );
}
+#endif
}
/*
@@ -2014,6 +2109,7 @@
return( 0 );
}
+#if defined(POLARSSL_SSL_PROTO_SSL3)
/*
* If using SSLv3 and got no cert, send an Alert message
* (otherwise an empty Certificate message will be sent).
@@ -2029,6 +2125,7 @@
SSL_DEBUG_MSG( 2, ( "got no certificate to send" ) );
goto write_msg;
}
+#endif /* POLARSSL_SSL_PROTO_SSL3 */
}
else /* SSL_IS_SERVER */
{
@@ -2079,7 +2176,9 @@
ssl->out_msgtype = SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = SSL_HS_CERTIFICATE;
+#if defined(POLARSSL_SSL_PROTO_SSL3)
write_msg:
+#endif
ssl->state++;
@@ -2127,6 +2226,7 @@
ssl->state++;
+#if defined(POLARSSL_SSL_PROTO_SSL3)
/*
* Check if the client sent an empty certificate
*/
@@ -2147,7 +2247,10 @@
return( POLARSSL_ERR_SSL_NO_CLIENT_CERTIFICATE );
}
}
+#endif /* POLARSSL_SSL_PROTO_SSL3 */
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_2)
if( ssl->endpoint == SSL_IS_SERVER &&
ssl->minor_ver != SSL_MINOR_VERSION_0 )
{
@@ -2165,6 +2268,8 @@
return( 0 );
}
}
+#endif /* POLARSSL_SSL_PROTO_TLS1 || POLARSSL_SSL_PROTO_TLS1_1 || \
+ POLARSSL_SSL_PROTO_TLS1_2 */
if( ssl->in_msgtype != SSL_MSG_HANDSHAKE )
{
@@ -2317,45 +2422,66 @@
void ssl_optimize_checksum( ssl_context *ssl,
const ssl_ciphersuite_t *ciphersuite_info )
{
-#if !defined(POLARSSL_SHA512_C)
((void) ciphersuite_info);
-#endif
+#if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_1)
if( ssl->minor_ver < SSL_MINOR_VERSION_3 )
ssl->handshake->update_checksum = ssl_update_checksum_md5sha1;
-#if defined(POLARSSL_SHA512_C)
- else if( ciphersuite_info->mac == POLARSSL_MD_SHA384 )
- {
- ssl->handshake->update_checksum = ssl_update_checksum_sha384;
- }
-#endif
else
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1_2)
+#if defined(POLARSSL_SHA512_C)
+ if( ciphersuite_info->mac == POLARSSL_MD_SHA384 )
+ ssl->handshake->update_checksum = ssl_update_checksum_sha384;
+ else
+#endif
+#if defined(POLARSSL_SHA256_C)
+ if( ciphersuite_info->mac != POLARSSL_MD_SHA384 )
ssl->handshake->update_checksum = ssl_update_checksum_sha256;
+ else
+#endif
+#endif /* POLARSSL_SSL_PROTO_TLS1_2 */
+ /* Should never happen */
+ return;
}
static void ssl_update_checksum_start( ssl_context *ssl,
const unsigned char *buf, size_t len )
{
+#if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_1)
md5_update( &ssl->handshake->fin_md5 , buf, len );
sha1_update( &ssl->handshake->fin_sha1, buf, len );
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1_2)
+#if defined(POLARSSL_SHA256_C)
sha256_update( &ssl->handshake->fin_sha256, buf, len );
+#endif
#if defined(POLARSSL_SHA512_C)
sha512_update( &ssl->handshake->fin_sha512, buf, len );
#endif
+#endif /* POLARSSL_SSL_PROTO_TLS1_2 */
}
+#if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_1)
static void ssl_update_checksum_md5sha1( ssl_context *ssl,
const unsigned char *buf, size_t len )
{
md5_update( &ssl->handshake->fin_md5 , buf, len );
sha1_update( &ssl->handshake->fin_sha1, buf, len );
}
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1_2)
+#if defined(POLARSSL_SHA256_C)
static void ssl_update_checksum_sha256( ssl_context *ssl,
const unsigned char *buf, size_t len )
{
sha256_update( &ssl->handshake->fin_sha256, buf, len );
}
+#endif
#if defined(POLARSSL_SHA512_C)
static void ssl_update_checksum_sha384( ssl_context *ssl,
@@ -2364,7 +2490,9 @@
sha512_update( &ssl->handshake->fin_sha512, buf, len );
}
#endif
+#endif /* POLARSSL_SSL_PROTO_TLS1_2 */
+#if defined(POLARSSL_SSL_PROTO_SSL3)
static void ssl_calc_finished_ssl(
ssl_context *ssl, unsigned char *buf, int from )
{
@@ -2444,7 +2572,9 @@
SSL_DEBUG_MSG( 2, ( "<= calc finished" ) );
}
+#endif /* POLARSSL_SSL_PROTO_SSL3 */
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1)
static void ssl_calc_finished_tls(
ssl_context *ssl, unsigned char *buf, int from )
{
@@ -2498,7 +2628,10 @@
SSL_DEBUG_MSG( 2, ( "<= calc finished" ) );
}
+#endif /* POLARSSL_SSL_PROTO_TLS1 || POLARSSL_SSL_PROTO_TLS1_1 */
+#if defined(POLARSSL_SSL_PROTO_TLS1_2)
+#if defined(POLARSSL_SHA256_C)
static void ssl_calc_finished_tls_sha256(
ssl_context *ssl, unsigned char *buf, int from )
{
@@ -2543,6 +2676,7 @@
SSL_DEBUG_MSG( 2, ( "<= calc finished" ) );
}
+#endif /* POLARSSL_SHA256_C */
#if defined(POLARSSL_SHA512_C)
static void ssl_calc_finished_tls_sha384(
@@ -2589,7 +2723,8 @@
SSL_DEBUG_MSG( 2, ( "<= calc finished" ) );
}
-#endif
+#endif /* POLARSSL_SHA512_C */
+#endif /* POLARSSL_SSL_PROTO_TLS1_2 */
void ssl_handshake_wrapup( ssl_context *ssl )
{
@@ -2828,12 +2963,19 @@
memset( ssl->transform_negotiate, 0, sizeof(ssl_transform) );
memset( ssl->session_negotiate, 0, sizeof(ssl_session) );
+#if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_1)
md5_starts( &ssl->handshake->fin_md5 );
sha1_starts( &ssl->handshake->fin_sha1 );
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1_2)
+#if defined(POLARSSL_SHA256_C)
sha256_starts( &ssl->handshake->fin_sha256, 0 );
+#endif
#if defined(POLARSSL_SHA512_C)
sha512_starts( &ssl->handshake->fin_sha512, 1 );
#endif
+#endif /* POLARSSL_SSL_PROTO_TLS1_2 */
ssl->handshake->update_checksum = ssl_update_checksum_start;
ssl->handshake->sig_alg = SSL_HASH_SHA1;
@@ -2864,10 +3006,10 @@
ssl->rsa_key_len = ssl_rsa_key_len;
#endif
- ssl->min_major_ver = SSL_MAJOR_VERSION_3;
- ssl->min_minor_ver = SSL_MINOR_VERSION_0;
- ssl->max_major_ver = SSL_MAJOR_VERSION_3;
- ssl->max_minor_ver = SSL_MINOR_VERSION_3;
+ ssl->min_major_ver = SSL_MIN_MAJOR_VERSION;
+ ssl->min_minor_ver = SSL_MIN_MINOR_VERSION;
+ ssl->max_major_ver = SSL_MAX_MAJOR_VERSION;
+ ssl->max_minor_ver = SSL_MAX_MINOR_VERSION;
ssl_set_ciphersuites( ssl, ssl_list_ciphersuites() );
@@ -3248,14 +3390,22 @@
void ssl_set_max_version( ssl_context *ssl, int major, int minor )
{
- ssl->max_major_ver = major;
- ssl->max_minor_ver = minor;
+ if( major >= SSL_MIN_MAJOR_VERSION && major <= SSL_MAX_MAJOR_VERSION &&
+ minor >= SSL_MIN_MINOR_VERSION && minor <= SSL_MAX_MINOR_VERSION )
+ {
+ ssl->max_major_ver = major;
+ ssl->max_minor_ver = minor;
+ }
}
void ssl_set_min_version( ssl_context *ssl, int major, int minor )
{
- ssl->min_major_ver = major;
- ssl->min_minor_ver = minor;
+ if( major >= SSL_MIN_MAJOR_VERSION && major <= SSL_MAX_MAJOR_VERSION &&
+ minor >= SSL_MIN_MINOR_VERSION && minor <= SSL_MAX_MINOR_VERSION )
+ {
+ ssl->min_major_ver = major;
+ ssl->min_minor_ver = minor;
+ }
}
#if defined(POLARSSL_SSL_MAX_FRAGMENT_LENGTH)
@@ -3516,6 +3666,7 @@
{
SSL_DEBUG_MSG( 3, ( "ignoring renegotiation, sending alert" ) );
+#if defined(POLARSSL_SSL_PROTO_SSL3)
if( ssl->minor_ver == SSL_MINOR_VERSION_0 )
{
/*
@@ -3525,6 +3676,10 @@
return( ret );
}
else
+#endif
+#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
+ defined(POLARSSL_SSL_PROTO_TLS1_2)
+ if( ssl->minor_ver >= SSL_MINOR_VERSION_1 )
{
if( ( ret = ssl_send_alert_message( ssl,
SSL_ALERT_LEVEL_WARNING,
@@ -3533,6 +3688,10 @@
return( ret );
}
}
+ else
+#endif
+ /* Should never happen */
+ return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
}
else
{