34 #if !defined(POLARSSL_CONFIG_FILE)
37 #include POLARSSL_CONFIG_FILE
40 #if defined(POLARSSL_SSL_TLS_C)
45 #if defined(POLARSSL_X509_CRT_PARSE_C) && \
46 defined(POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
50 #if defined(POLARSSL_PLATFORM_C)
53 #define polarssl_malloc malloc
54 #define polarssl_free free
59 #if defined(_MSC_VER) && !defined strcasecmp && !defined(EFIX64) && \
61 #define strcasecmp _stricmp
65 static void polarssl_zeroize(
void *v,
size_t n ) {
66 volatile unsigned char *p = v;
while( n-- ) *p++ = 0;
69 #if defined(POLARSSL_SSL_MAX_FRAGMENT_LENGTH)
93 #if defined(POLARSSL_X509_CRT_PARSE_C)
114 #if defined(POLARSSL_SSL_SESSION_TICKETS)
128 #if defined(POLARSSL_SSL_HW_RECORD_ACCEL)
130 const unsigned char *key_enc,
const unsigned char *key_dec,
132 const unsigned char *iv_enc,
const unsigned char *iv_dec,
134 const unsigned char *mac_enc,
const unsigned char *mac_dec,
135 size_t maclen ) = NULL;
136 int (*ssl_hw_record_activate)(
ssl_context *ssl,
int direction) = NULL;
137 int (*ssl_hw_record_reset)(
ssl_context *ssl ) = NULL;
138 int (*ssl_hw_record_write)(
ssl_context *ssl ) = NULL;
139 int (*ssl_hw_record_read)(
ssl_context *ssl ) = NULL;
140 int (*ssl_hw_record_finish)(
ssl_context *ssl ) = NULL;
146 #if defined(POLARSSL_SSL_PROTO_SSL3)
147 static int ssl3_prf(
const unsigned char *secret,
size_t slen,
149 const unsigned char *random,
size_t rlen,
150 unsigned char *dstbuf,
size_t dlen )
155 unsigned char padding[16];
156 unsigned char sha1sum[20];
170 for( i = 0; i < dlen / 16; i++ )
172 memset( padding, (
unsigned char) (
'A' + i), 1 + i );
189 polarssl_zeroize( padding,
sizeof( padding ) );
190 polarssl_zeroize( sha1sum,
sizeof( sha1sum ) );
196 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1)
197 static int tls1_prf(
const unsigned char *secret,
size_t slen,
199 const unsigned char *random,
size_t rlen,
200 unsigned char *dstbuf,
size_t dlen )
204 const unsigned char *S1, *S2;
205 unsigned char tmp[128];
206 unsigned char h_i[20];
208 if(
sizeof( tmp ) < 20 + strlen( label ) + rlen )
211 hs = ( slen + 1 ) / 2;
213 S2 = secret + slen - hs;
215 nb = strlen( label );
216 memcpy( tmp + 20, label, nb );
217 memcpy( tmp + 20 + nb, random, rlen );
223 md5_hmac( S1, hs, tmp + 20, nb, 4 + tmp );
225 for( i = 0; i < dlen; i += 16 )
227 md5_hmac( S1, hs, 4 + tmp, 16 + nb, h_i );
228 md5_hmac( S1, hs, 4 + tmp, 16, 4 + tmp );
230 k = ( i + 16 > dlen ) ? dlen % 16 : 16;
232 for( j = 0; j < k; j++ )
233 dstbuf[i + j] = h_i[j];
241 for( i = 0; i < dlen; i += 20 )
246 k = ( i + 20 > dlen ) ? dlen % 20 : 20;
248 for( j = 0; j < k; j++ )
249 dstbuf[i + j] = (
unsigned char)( dstbuf[i + j] ^ h_i[j] );
252 polarssl_zeroize( tmp,
sizeof( tmp ) );
253 polarssl_zeroize( h_i,
sizeof( h_i ) );
259 #if defined(POLARSSL_SSL_PROTO_TLS1_2)
260 #if defined(POLARSSL_SHA256_C)
261 static int tls_prf_sha256(
const unsigned char *secret,
size_t slen,
263 const unsigned char *random,
size_t rlen,
264 unsigned char *dstbuf,
size_t dlen )
268 unsigned char tmp[128];
269 unsigned char h_i[32];
271 if(
sizeof( tmp ) < 32 + strlen( label ) + rlen )
274 nb = strlen( label );
275 memcpy( tmp + 32, label, nb );
276 memcpy( tmp + 32 + nb, random, rlen );
284 for( i = 0; i < dlen; i += 32 )
289 k = ( i + 32 > dlen ) ? dlen % 32 : 32;
291 for( j = 0; j < k; j++ )
292 dstbuf[i + j] = h_i[j];
295 polarssl_zeroize( tmp,
sizeof( tmp ) );
296 polarssl_zeroize( h_i,
sizeof( h_i ) );
302 #if defined(POLARSSL_SHA512_C)
303 static int tls_prf_sha384(
const unsigned char *secret,
size_t slen,
305 const unsigned char *random,
size_t rlen,
306 unsigned char *dstbuf,
size_t dlen )
310 unsigned char tmp[128];
311 unsigned char h_i[48];
313 if(
sizeof( tmp ) < 48 + strlen( label ) + rlen )
316 nb = strlen( label );
317 memcpy( tmp + 48, label, nb );
318 memcpy( tmp + 48 + nb, random, rlen );
326 for( i = 0; i < dlen; i += 48 )
331 k = ( i + 48 > dlen ) ? dlen % 48 : 48;
333 for( j = 0; j < k; j++ )
334 dstbuf[i + j] = h_i[j];
337 polarssl_zeroize( tmp,
sizeof( tmp ) );
338 polarssl_zeroize( h_i,
sizeof( h_i ) );
345 static void ssl_update_checksum_start(
ssl_context *,
const unsigned char *,
size_t );
347 #if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1) || \
348 defined(POLARSSL_SSL_PROTO_TLS1_1)
349 static void ssl_update_checksum_md5sha1(
ssl_context *,
const unsigned char *,
size_t );
352 #if defined(POLARSSL_SSL_PROTO_SSL3)
353 static void ssl_calc_verify_ssl(
ssl_context *,
unsigned char * );
354 static void ssl_calc_finished_ssl(
ssl_context *,
unsigned char *,
int );
357 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1)
358 static void ssl_calc_verify_tls(
ssl_context *,
unsigned char * );
359 static void ssl_calc_finished_tls(
ssl_context *,
unsigned char *,
int );
362 #if defined(POLARSSL_SSL_PROTO_TLS1_2)
363 #if defined(POLARSSL_SHA256_C)
364 static void ssl_update_checksum_sha256(
ssl_context *,
const unsigned char *,
size_t );
365 static void ssl_calc_verify_tls_sha256(
ssl_context *,
unsigned char * );
366 static void ssl_calc_finished_tls_sha256(
ssl_context *,
unsigned char *,
int );
369 #if defined(POLARSSL_SHA512_C)
370 static void ssl_update_checksum_sha384(
ssl_context *,
const unsigned char *,
size_t );
371 static void ssl_calc_verify_tls_sha384(
ssl_context *,
unsigned char * );
372 static void ssl_calc_finished_tls_sha384(
ssl_context *,
unsigned char *,
int );
379 unsigned char tmp[64];
380 unsigned char keyblk[256];
383 unsigned char *mac_enc;
384 unsigned char *mac_dec;
396 if( cipher_info == NULL )
404 if( md_info == NULL )
414 #if defined(POLARSSL_SSL_PROTO_SSL3)
423 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1)
432 #if defined(POLARSSL_SSL_PROTO_TLS1_2)
433 #if defined(POLARSSL_SHA512_C)
437 handshake->
tls_prf = tls_prf_sha384;
438 handshake->
calc_verify = ssl_calc_verify_tls_sha384;
443 #if defined(POLARSSL_SHA256_C)
446 handshake->
tls_prf = tls_prf_sha256;
447 handshake->
calc_verify = ssl_calc_verify_tls_sha256;
468 if( handshake->
resume == 0 )
486 memcpy( handshake->
randbytes, tmp + 32, 32 );
487 memcpy( handshake->
randbytes + 32, tmp, 32 );
488 polarssl_zeroize( tmp,
sizeof( tmp ) );
524 transform->
ivlen = 12;
547 #if defined(POLARSSL_SSL_TRUNCATED_HMAC)
574 #if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1)
580 #if defined(POLARSSL_SSL_PROTO_TLS1_1) || defined(POLARSSL_SSL_PROTO_TLS1_2)
595 SSL_DEBUG_MSG( 3, (
"keylen: %d, minlen: %d, ivlen: %d, maclen: %d",
604 key1 = keyblk + transform->
maclen * 2;
605 key2 = keyblk + transform->
maclen * 2 + transform->
keylen;
608 mac_dec = keyblk + transform->
maclen;
615 memcpy( transform->
iv_enc, key2 + transform->
keylen, iv_copy_len );
616 memcpy( transform->
iv_dec, key2 + transform->
keylen + iv_copy_len,
621 key1 = keyblk + transform->
maclen * 2 + transform->
keylen;
622 key2 = keyblk + transform->
maclen * 2;
624 mac_enc = keyblk + transform->
maclen;
632 memcpy( transform->
iv_dec, key1 + transform->
keylen, iv_copy_len );
633 memcpy( transform->
iv_enc, key1 + transform->
keylen + iv_copy_len,
637 #if defined(POLARSSL_SSL_PROTO_SSL3)
651 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
652 defined(POLARSSL_SSL_PROTO_TLS1_2)
665 #if defined(POLARSSL_SSL_HW_RECORD_ACCEL)
666 if( ssl_hw_record_init != NULL )
672 if( ( ret = ssl_hw_record_init( ssl, key1, key2, transform->
keylen,
676 transform->
maclen ) ) != 0 )
685 cipher_info ) ) != 0 )
692 cipher_info ) ) != 0 )
714 #if defined(POLARSSL_CIPHER_MODE_CBC)
733 polarssl_zeroize( keyblk,
sizeof( keyblk ) );
735 #if defined(POLARSSL_ZLIB_SUPPORT)
740 if( ssl->compress_buf == NULL )
744 if( ssl->compress_buf == NULL )
754 memset( &transform->ctx_deflate, 0,
sizeof( transform->ctx_deflate ) );
755 memset( &transform->ctx_inflate, 0,
sizeof( transform->ctx_inflate ) );
757 if( deflateInit( &transform->ctx_deflate,
758 Z_DEFAULT_COMPRESSION ) != Z_OK ||
759 inflateInit( &transform->ctx_inflate ) != Z_OK )
772 #if defined(POLARSSL_SSL_PROTO_SSL3)
773 void ssl_calc_verify_ssl(
ssl_context *ssl,
unsigned char hash[36] )
777 unsigned char pad_1[48];
778 unsigned char pad_2[48];
785 memset( pad_1, 0x36, 48 );
786 memset( pad_2, 0x5C, 48 );
818 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1)
819 void ssl_calc_verify_tls(
ssl_context *ssl,
unsigned char hash[36] )
842 #if defined(POLARSSL_SSL_PROTO_TLS1_2)
843 #if defined(POLARSSL_SHA256_C)
844 void ssl_calc_verify_tls_sha256(
ssl_context *ssl,
unsigned char hash[32] )
862 #if defined(POLARSSL_SHA512_C)
863 void ssl_calc_verify_tls_sha384(
ssl_context *ssl,
unsigned char hash[48] )
882 #if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
895 #if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED)
898 if( end - p < 2 + (
int) ssl->
psk_len )
901 *(p++) = (
unsigned char)( ssl->
psk_len >> 8 );
902 *(p++) = (
unsigned char)( ssl->
psk_len );
907 #if defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED)
920 #if defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED)
924 size_t len = end - ( p + 2 );
934 *(p++) = (
unsigned char)( len >> 8 );
935 *(p++) = (
unsigned char)( len );
942 #if defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
949 p + 2, end - ( p + 2 ),
956 *(p++) = (
unsigned char)( zlen >> 8 );
957 *(p++) = (
unsigned char)( zlen );
970 if( end - p < 2 + (
int) ssl->
psk_len )
973 *(p++) = (
unsigned char)( ssl->
psk_len >> 8 );
974 *(p++) = (
unsigned char)( ssl->
psk_len );
984 #if defined(POLARSSL_SSL_PROTO_SSL3)
988 static void ssl_mac(
md_context_t *md_ctx,
unsigned char *secret,
989 unsigned char *buf,
size_t len,
990 unsigned char *ctr,
int type )
992 unsigned char header[11];
993 unsigned char padding[48];
1004 memcpy( header, ctr, 8 );
1005 header[ 8] = (
unsigned char) type;
1006 header[ 9] = (
unsigned char)( len >> 8 );
1007 header[10] = (
unsigned char)( len );
1009 memset( padding, 0x36, padlen );
1017 memset( padding, 0x5C, padlen );
1021 md_update( md_ctx, buf + len, md_size );
1040 #if defined(POLARSSL_ARC4_C) || defined(POLARSSL_CIPHER_NULL_CIPHER) || \
1041 ( defined(POLARSSL_CIPHER_MODE_CBC) && \
1042 ( defined(POLARSSL_AES_C) || defined(POLARSSL_CAMELLIA_C) ) )
1046 #if defined(POLARSSL_SSL_PROTO_SSL3)
1056 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
1057 defined(POLARSSL_SSL_PROTO_TLS1_2)
1085 #if defined(POLARSSL_ARC4_C) || defined(POLARSSL_CIPHER_NULL_CIPHER)
1092 "including %d bytes of padding",
1102 ssl->
out_msg, &olen ) ) != 0 )
1116 #if defined(POLARSSL_GCM_C) || defined(POLARSSL_CCM_C)
1121 size_t enc_msglen, olen;
1122 unsigned char *enc_msg;
1123 unsigned char add_data[13];
1127 memcpy( add_data, ssl->
out_ctr, 8 );
1131 add_data[11] = ( ssl->
out_msglen >> 8 ) & 0xFF;
1162 "including %d bytes of padding",
1175 enc_msg, enc_msglen,
1177 enc_msg + enc_msglen, taglen ) ) != 0 )
1183 if( olen != enc_msglen )
1191 SSL_DEBUG_BUF( 4,
"after encrypt: tag", enc_msg + enc_msglen, taglen );
1195 #if defined(POLARSSL_CIPHER_MODE_CBC) && \
1196 ( defined(POLARSSL_AES_C) || defined(POLARSSL_CAMELLIA_C) )
1200 unsigned char *enc_msg;
1201 size_t enc_msglen, padlen, olen = 0;
1208 for( i = 0; i <= padlen; i++ )
1216 #if defined(POLARSSL_SSL_PROTO_TLS1_1) || defined(POLARSSL_SSL_PROTO_TLS1_2)
1244 "including %d bytes of IV and %d bytes of padding",
1254 enc_msg, enc_msglen,
1255 enc_msg, &olen ) ) != 0 )
1261 if( enc_msglen != olen )
1267 #if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1)
1287 for( i = 8; i > 0; i-- )
1288 if( ++ssl->
out_ctr[i - 1] != 0 )
1294 SSL_DEBUG_MSG( 1, (
"outgoing message counter would wrap" ) );
1303 #define POLARSSL_SSL_MAX_MAC_SIZE 48
1310 #if defined(POLARSSL_ARC4_C) || defined(POLARSSL_CIPHER_NULL_CIPHER) || \
1311 ( defined(POLARSSL_CIPHER_MODE_CBC) && \
1312 ( defined(POLARSSL_AES_C) || defined(POLARSSL_CAMELLIA_C) ) )
1313 size_t padlen = 0, correct = 1;
1325 #if defined(POLARSSL_ARC4_C) || defined(POLARSSL_CIPHER_NULL_CIPHER)
1337 ssl->
in_msg, &olen ) ) != 0 )
1351 #if defined(POLARSSL_GCM_C) || defined(POLARSSL_CCM_C)
1356 size_t dec_msglen, olen;
1357 unsigned char *dec_msg;
1358 unsigned char *dec_msg_result;
1359 unsigned char add_data[13];
1365 if( ssl->
in_msglen < explicit_iv_len + taglen )
1369 explicit_iv_len, taglen ) );
1372 dec_msglen = ssl->
in_msglen - explicit_iv_len - taglen;
1375 dec_msg_result = ssl->
in_msg;
1378 memcpy( add_data, ssl->
in_ctr, 8 );
1382 add_data[11] = ( ssl->
in_msglen >> 8 ) & 0xFF;
1394 SSL_DEBUG_BUF( 4,
"TAG used", dec_msg + dec_msglen, taglen );
1403 dec_msg, dec_msglen,
1404 dec_msg_result, &olen,
1405 dec_msg + dec_msglen, taglen ) ) != 0 )
1415 if( olen != dec_msglen )
1423 #if defined(POLARSSL_CIPHER_MODE_CBC) && \
1424 ( defined(POLARSSL_AES_C) || defined(POLARSSL_CAMELLIA_C) )
1431 unsigned char *dec_msg;
1432 unsigned char *dec_msg_result;
1447 #if defined(POLARSSL_SSL_PROTO_TLS1_1) || defined(POLARSSL_SSL_PROTO_TLS1_2)
1455 SSL_DEBUG_MSG( 1, (
"msglen (%d) < max( ivlen(%d), maclen (%d) "
1464 dec_msg_result = ssl->
in_msg;
1466 #if defined(POLARSSL_SSL_PROTO_TLS1_1) || defined(POLARSSL_SSL_PROTO_TLS1_2)
1483 dec_msg, dec_msglen,
1484 dec_msg_result, &olen ) ) != 0 )
1490 if( dec_msglen != olen )
1496 #if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1)
1512 #if defined(POLARSSL_SSL_DEBUG_ALL)
1513 SSL_DEBUG_MSG( 1, (
"msglen (%d) < maclen (%d) + padlen (%d)",
1520 #if defined(POLARSSL_SSL_PROTO_SSL3)
1525 #if defined(POLARSSL_SSL_DEBUG_ALL)
1527 "should be no more than %d",
1535 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
1536 defined(POLARSSL_SSL_PROTO_TLS1_2)
1543 size_t pad_count = 0, real_count = 1;
1544 size_t padding_idx = ssl->
in_msglen - padlen - 1;
1556 correct &= ( ssl->
in_msglen >= padlen + 1 );
1560 padding_idx *= correct;
1562 for( i = 1; i <= 256; i++ )
1564 real_count &= ( i <= padlen );
1565 pad_count += real_count *
1566 ( ssl->
in_msg[padding_idx + i] == padlen - 1 );
1569 correct &= ( pad_count == padlen );
1571 #if defined(POLARSSL_SSL_DEBUG_ALL)
1572 if( padlen > 0 && correct == 0 )
1575 padlen &= correct * 0x1FF;
1599 #if defined(POLARSSL_ARC4_C) || defined(POLARSSL_CIPHER_NULL_CIPHER) || \
1600 ( defined(POLARSSL_CIPHER_MODE_CBC) && \
1601 ( defined(POLARSSL_AES_C) || defined(POLARSSL_CAMELLIA_C) ) )
1605 unsigned char tmp[POLARSSL_SSL_MAX_MAC_SIZE];
1614 #if defined(POLARSSL_SSL_PROTO_SSL3)
1624 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
1625 defined(POLARSSL_SSL_PROTO_TLS1_2)
1641 size_t j, extra_run = 0;
1642 extra_run = ( 13 + ssl->
in_msglen + padlen + 8 ) / 64 -
1645 extra_run &= correct * 0xFF;
1652 for( j = 0; j < extra_run; j++ )
1672 #if defined(POLARSSL_SSL_DEBUG_ALL)
1697 "messages, possible DoS attack" ) );
1704 for( i = 8; i > 0; i-- )
1705 if( ++ssl->
in_ctr[i - 1] != 0 )
1711 SSL_DEBUG_MSG( 1, (
"incoming message counter would wrap" ) );
1720 #if defined(POLARSSL_ZLIB_SUPPORT)
1727 unsigned char *msg_post = ssl->
out_msg;
1729 unsigned char *msg_pre = ssl->compress_buf;
1736 memcpy( msg_pre, ssl->
out_msg, len_pre );
1749 ret = deflate( &ssl->
transform_out->ctx_deflate, Z_SYNC_FLUSH );
1752 SSL_DEBUG_MSG( 1, (
"failed to perform compression (%d)", ret ) );
1773 unsigned char *msg_post = ssl->
in_msg;
1775 unsigned char *msg_pre = ssl->compress_buf;
1782 memcpy( msg_pre, ssl->
in_msg, len_pre );
1795 ret = inflate( &ssl->
transform_in->ctx_inflate, Z_SYNC_FLUSH );
1798 SSL_DEBUG_MSG( 1, (
"failed to perform decompression (%d)", ret ) );
1833 while( ssl->
in_left < nb_want )
1899 ssl->
out_msg[1] = (
unsigned char)( ( len - 4 ) >> 16 );
1900 ssl->
out_msg[2] = (
unsigned char)( ( len - 4 ) >> 8 );
1901 ssl->
out_msg[3] = (
unsigned char)( ( len - 4 ) );
1907 #if defined(POLARSSL_ZLIB_SUPPORT)
1911 if( ( ret = ssl_compress_buf( ssl ) ) != 0 )
1921 #if defined(POLARSSL_SSL_HW_RECORD_ACCEL)
1922 if( ssl_hw_record_write != NULL )
1926 ret = ssl_hw_record_write( ssl );
1942 ssl->
out_hdr[3] = (
unsigned char)( len >> 8 );
1943 ssl->
out_hdr[4] = (
unsigned char)( len );
1947 if( ( ret = ssl_encrypt_buf( ssl ) ) != 0 )
1954 ssl->
out_hdr[3] = (
unsigned char)( len >> 8 );
1955 ssl->
out_hdr[4] = (
unsigned char)( len );
1961 "version = [%d:%d], msglen = %d",
2001 " %d, type = %d, hslen = %d",
2037 "version = [%d:%d], msglen = %d",
2080 #if defined(POLARSSL_SSL_PROTO_SSL3)
2089 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
2090 defined(POLARSSL_SSL_PROTO_TLS1_2)
2116 #if defined(POLARSSL_SSL_HW_RECORD_ACCEL)
2117 if( ssl_hw_record_read != NULL )
2121 ret = ssl_hw_record_read( ssl );
2134 if( ( ret = ssl_decrypt_buf( ssl ) ) != 0 )
2136 #if defined(POLARSSL_SSL_ALERT_MESSAGES)
2158 #if defined(POLARSSL_ZLIB_SUPPORT)
2162 if( ( ret = ssl_decompress_buf( ssl ) ) != 0 )
2196 " %d, type = %d, hslen = %d",
2263 unsigned char level,
2264 unsigned char message )
2289 #if !defined(POLARSSL_KEY_EXCHANGE_RSA_ENABLED) && \
2290 !defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED) && \
2291 !defined(POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED) && \
2292 !defined(POLARSSL_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \
2293 !defined(POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) && \
2294 !defined(POLARSSL_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \
2295 !defined(POLARSSL_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
2361 #if defined(POLARSSL_SSL_PROTO_SSL3)
2402 while( crt != NULL )
2412 ssl->
out_msg[i ] = (
unsigned char)( n >> 16 );
2413 ssl->
out_msg[i + 1] = (
unsigned char)( n >> 8 );
2414 ssl->
out_msg[i + 2] = (
unsigned char)( n );
2416 i += 3; memcpy( ssl->
out_msg + i, crt->
raw.
p, n );
2417 i += n; crt = crt->
next;
2420 ssl->
out_msg[4] = (
unsigned char)( ( i - 7 ) >> 16 );
2421 ssl->
out_msg[5] = (
unsigned char)( ( i - 7 ) >> 8 );
2422 ssl->
out_msg[6] = (
unsigned char)( ( i - 7 ) );
2428 #if defined(POLARSSL_SSL_PROTO_SSL3)
2480 #if defined(POLARSSL_SSL_PROTO_SSL3)
2503 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
2504 defined(POLARSSL_SSL_PROTO_TLS1_2)
2511 memcmp( ssl->
in_msg + 4,
"\0\0\0", 3 ) == 0 )
2567 while( i < ssl->in_hslen )
2569 if( ssl->
in_msg[i] != 0 )
2575 n = ( (
unsigned int) ssl->
in_msg[i + 1] << 8 )
2576 | (
unsigned int) ssl->
in_msg[i + 2];
2579 if( n < 128 || i + n > ssl->
in_hslen )
2607 SSL_DEBUG_MSG( 1, (
"new server cert during renegotiation" ) );
2617 SSL_DEBUG_MSG( 1, (
"server cert changed during renegotiation" ) );
2647 #if defined(POLARSSL_SSL_SET_CURVES)
2653 ! ssl_curve_is_acceptable( ssl,
pk_ec( *pk )->grp.id ) )
2666 SSL_DEBUG_MSG( 1, (
"bad certificate (usage extensions)" ) );
2744 ((void) ciphersuite_info);
2746 #if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1) || \
2747 defined(POLARSSL_SSL_PROTO_TLS1_1)
2752 #if defined(POLARSSL_SSL_PROTO_TLS1_2)
2753 #if defined(POLARSSL_SHA512_C)
2758 #if defined(POLARSSL_SHA256_C)
2770 static void ssl_update_checksum_start(
ssl_context *ssl,
2771 const unsigned char *buf,
size_t len )
2773 #if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1) || \
2774 defined(POLARSSL_SSL_PROTO_TLS1_1)
2778 #if defined(POLARSSL_SSL_PROTO_TLS1_2)
2779 #if defined(POLARSSL_SHA256_C)
2782 #if defined(POLARSSL_SHA512_C)
2788 #if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1) || \
2789 defined(POLARSSL_SSL_PROTO_TLS1_1)
2790 static void ssl_update_checksum_md5sha1(
ssl_context *ssl,
2791 const unsigned char *buf,
size_t len )
2798 #if defined(POLARSSL_SSL_PROTO_TLS1_2)
2799 #if defined(POLARSSL_SHA256_C)
2800 static void ssl_update_checksum_sha256(
ssl_context *ssl,
2801 const unsigned char *buf,
size_t len )
2807 #if defined(POLARSSL_SHA512_C)
2808 static void ssl_update_checksum_sha384(
ssl_context *ssl,
2809 const unsigned char *buf,
size_t len )
2816 #if defined(POLARSSL_SSL_PROTO_SSL3)
2817 static void ssl_calc_finished_ssl(
2824 unsigned char padbuf[48];
2825 unsigned char md5sum[16];
2826 unsigned char sha1sum[20];
2846 #if !defined(POLARSSL_MD5_ALT)
2851 #if !defined(POLARSSL_SHA1_ALT)
2859 memset( padbuf, 0x36, 48 );
2861 md5_update( &md5, (
const unsigned char *) sender, 4 );
2866 sha1_update( &sha1, (
const unsigned char *) sender, 4 );
2871 memset( padbuf, 0x5C, 48 );
2890 polarssl_zeroize( padbuf,
sizeof( padbuf ) );
2891 polarssl_zeroize( md5sum,
sizeof( md5sum ) );
2892 polarssl_zeroize( sha1sum,
sizeof( sha1sum ) );
2898 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1)
2899 static void ssl_calc_finished_tls(
2906 unsigned char padbuf[36];
2923 #if !defined(POLARSSL_MD5_ALT)
2928 #if !defined(POLARSSL_SHA1_ALT)
2935 :
"server finished";
2941 padbuf, 36, buf, len );
2948 polarssl_zeroize( padbuf,
sizeof( padbuf ) );
2954 #if defined(POLARSSL_SSL_PROTO_TLS1_2)
2955 #if defined(POLARSSL_SHA256_C)
2956 static void ssl_calc_finished_tls_sha256(
2962 unsigned char padbuf[32];
2978 #if !defined(POLARSSL_SHA256_ALT)
2985 :
"server finished";
2990 padbuf, 32, buf, len );
2996 polarssl_zeroize( padbuf,
sizeof( padbuf ) );
3002 #if defined(POLARSSL_SHA512_C)
3003 static void ssl_calc_finished_tls_sha384(
3009 unsigned char padbuf[48];
3025 #if !defined(POLARSSL_SHA512_ALT)
3026 SSL_DEBUG_BUF( 4,
"finished sha512 state", (
unsigned char *)
3032 :
"server finished";
3037 padbuf, 48, buf, len );
3043 polarssl_zeroize( padbuf,
sizeof( padbuf ) );
3151 SSL_DEBUG_MSG( 3, (
"switching to new transform spec for outbound data" ) );
3156 #if defined(POLARSSL_SSL_HW_RECORD_ACCEL)
3157 if( ssl_hw_record_activate != NULL )
3159 if( ( ret = ssl_hw_record_activate( ssl, SSL_CHANNEL_OUTBOUND ) ) != 0 )
3181 unsigned int hash_len;
3182 unsigned char buf[36];
3192 SSL_DEBUG_MSG( 3, (
"switching to new transform spec for inbound data" ) );
3195 memset( ssl->
in_ctr, 0, 8 );
3208 #if defined(POLARSSL_SSL_HW_RECORD_ACCEL)
3209 if( ssl_hw_record_activate != NULL )
3211 if( ( ret = ssl_hw_record_activate( ssl, SSL_CHANNEL_INBOUND ) ) != 0 )
3270 #if defined(POLARSSL_SSL_PROTO_SSL3) || defined(POLARSSL_SSL_PROTO_TLS1) || \
3271 defined(POLARSSL_SSL_PROTO_TLS1_1)
3277 #if defined(POLARSSL_SSL_PROTO_TLS1_2)
3278 #if defined(POLARSSL_SHA256_C)
3282 #if defined(POLARSSL_SHA512_C)
3291 #if defined(POLARSSL_DHM_C)
3294 #if defined(POLARSSL_ECDH_C)
3352 SSL_DEBUG_MSG( 1, (
"malloc() of ssl sub-contexts failed" ) );
3368 ssl_handshake_params_init( ssl->
handshake );
3370 #if defined(POLARSSL_X509_CRT_PARSE_C)
3399 #if defined(POLARSSL_DHM_C)
3418 if( ssl->
in_ctr == NULL )
3440 #if defined(POLARSSL_SSL_SESSION_TICKETS)
3444 #if defined(POLARSSL_SSL_SET_CURVES)
3448 if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
3494 #if defined(POLARSSL_SSL_HW_RECORD_ACCEL)
3495 if( ssl_hw_record_reset != NULL )
3498 if( ( ret = ssl_hw_record_reset( ssl ) ) != 0 )
3520 #if defined(POLARSSL_SSL_ALPN)
3524 if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
3530 #if defined(POLARSSL_SSL_SESSION_TICKETS)
3542 static int ssl_ticket_keys_init(
ssl_context *ssl )
3546 unsigned char buf[16];
3560 ssl_ticket_keys_free( tkeys );
3565 if( ( ret = ssl->
f_rng( ssl->
p_rng, buf, 16 ) ) != 0 ||
3569 ssl_ticket_keys_free( tkeys );
3576 ssl_ticket_keys_free( tkeys );
3594 #if defined(POLARSSL_SSL_SESSION_TICKETS)
3605 #if defined(POLARSSL_X509_CRT_PARSE_C)
3607 int (*f_vrfy)(
void *,
x509_crt *,
int,
int *),
3616 int (*f_rng)(
void *,
unsigned char *,
size_t),
3624 void (*f_dbg)(
void *,
int,
const char *),
3632 int (*f_recv)(
void *,
unsigned char *,
size_t),
void *p_recv,
3633 int (*f_send)(
void *,
const unsigned char *,
size_t),
void *p_send )
3642 int (*f_get_cache)(
void *,
ssl_session *),
void *p_get_cache,
3643 int (*f_set_cache)(
void *,
const ssl_session *),
void *p_set_cache )
3680 const int *ciphersuites,
3681 int major,
int minor )
3692 #if defined(POLARSSL_X509_CRT_PARSE_C)
3699 if( key_cert == NULL )
3714 while( last->
next != NULL )
3716 last->
next = key_cert;
3723 x509_crl *ca_crl,
const char *peer_cn )
3735 if( key_cert == NULL )
3738 key_cert->
cert = own_cert;
3739 key_cert->
key = pk_key;
3744 #if defined(POLARSSL_RSA_C)
3751 if( key_cert == NULL )
3755 if( key_cert->
key == NULL )
3767 key_cert->
cert = own_cert;
3783 if( key_cert == NULL )
3787 if( key_cert->
key == NULL )
3793 rsa_decrypt, rsa_sign, rsa_key_len ) ) != 0 )
3796 key_cert->
cert = own_cert;
3803 #if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
3805 const unsigned char *psk_identity,
size_t psk_identity_len )
3807 if( psk == NULL || psk_identity == NULL )
3813 if( ssl->
psk != NULL )
3836 int (*f_psk)(
void *,
ssl_context *,
const unsigned char *,
3845 #if defined(POLARSSL_DHM_C)
3885 #if defined(POLARSSL_SSL_SET_CURVES)
3891 ssl->curve_list = curve_list;
3895 #if defined(POLARSSL_SSL_SERVER_NAME_INDICATION)
3898 if( hostname == NULL )
3911 memcpy( ssl->
hostname, (
const unsigned char *) hostname,
3921 const unsigned char *,
size_t),
3929 #if defined(POLARSSL_SSL_ALPN)
3932 size_t cur_len, tot_len;
3940 for( p = protos; *p != NULL; p++ )
3942 cur_len = strlen( *p );
3945 if( cur_len == 0 || cur_len > 255 || tot_len > 65535 )
3980 #if defined(POLARSSL_SSL_MAX_FRAGMENT_LENGTH)
3995 #if defined(POLARSSL_SSL_TRUNCATED_HMAC)
4022 #if defined(POLARSSL_SSL_SESSION_TICKETS)
4030 if( ssl->
f_rng == NULL )
4033 return( ssl_ticket_keys_init( ssl ) );
4057 if( ssl == NULL || ssl->
session == NULL )
4068 return(
"SSLv3.0" );
4071 return(
"TLSv1.0" );
4074 return(
"TLSv1.1" );
4077 return(
"TLSv1.2" );
4082 return(
"unknown" );
4085 #if defined(POLARSSL_X509_CRT_PARSE_C)
4088 if( ssl == NULL || ssl->
session == NULL )
4105 return( ssl_session_copy( dst, ssl->
session ) );
4115 #if defined(POLARSSL_SSL_CLI_C)
4120 #if defined(POLARSSL_SSL_SRV_C)
4150 #if defined(POLARSSL_SSL_SRV_C)
4154 static int ssl_write_hello_request(
ssl_context *ssl )
4185 static int ssl_start_renegotiation(
ssl_context *ssl )
4191 if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
4216 #if defined(POLARSSL_SSL_SRV_C)
4229 return( ssl_write_hello_request( ssl ) );
4233 #if defined(POLARSSL_SSL_CLI_C)
4243 if( ( ret = ssl_start_renegotiation( ssl ) ) != 0 )
4267 int ret, record_read = 0;
4324 SSL_DEBUG_MSG( 1, (
"handshake received (not HelloRequest)" ) );
4333 SSL_DEBUG_MSG( 3, (
"ignoring renegotiation, sending alert" ) );
4335 #if defined(POLARSSL_SSL_PROTO_SSL3)
4346 #if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
4347 defined(POLARSSL_SSL_PROTO_TLS1_2)
4367 ret = ssl_start_renegotiation( ssl );
4392 "but not honored by client" ) );
4400 SSL_DEBUG_MSG( 2, (
"ignoring non-fatal non-closure alert" ) );
4416 memcpy( buf, ssl->
in_offt, n );
4451 #if defined(POLARSSL_SSL_MAX_FRAGMENT_LENGTH)
4455 max_len = mfl_code_to_length[ssl->
mfl_code];
4467 n = ( len < max_len) ? len : max_len;
4481 memcpy( ssl->
out_msg, buf, n );
4525 if( transform == NULL )
4528 #if defined(POLARSSL_ZLIB_SUPPORT)
4529 deflateEnd( &transform->ctx_deflate );
4530 inflateEnd( &transform->ctx_inflate );
4542 #if defined(POLARSSL_X509_CRT_PARSE_C)
4543 static void ssl_key_cert_free(
ssl_key_cert *key_cert )
4547 while( cur != NULL )
4565 if( handshake == NULL )
4568 #if defined(POLARSSL_DHM_C)
4571 #if defined(POLARSSL_ECDH_C)
4575 #if defined(POLARSSL_ECDH_C) || defined(POLARSSL_ECDSA_C)
4580 #if defined(POLARSSL_X509_CRT_PARSE_C) && \
4581 defined(POLARSSL_SSL_SERVER_NAME_INDICATION)
4590 while( cur != NULL )
4604 if( session == NULL )
4607 #if defined(POLARSSL_X509_CRT_PARSE_C)
4615 #if defined(POLARSSL_SSL_SESSION_TICKETS)
4619 polarssl_zeroize( session,
sizeof(
ssl_session ) );
4638 if( ssl->
in_ctr != NULL )
4644 #if defined(POLARSSL_ZLIB_SUPPORT)
4645 if( ssl->compress_buf != NULL )
4652 #if defined(POLARSSL_DHM_C)
4680 #if defined(POLARSSL_SSL_SESSION_TICKETS)
4688 #if defined(POLARSSL_SSL_SERVER_NAME_INDICATION)
4697 #if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
4698 if( ssl->
psk != NULL )
4709 #if defined(POLARSSL_X509_CRT_PARSE_C)
4710 ssl_key_cert_free( ssl->
key_cert );
4713 #if defined(POLARSSL_SSL_HW_RECORD_ACCEL)
4714 if( ssl_hw_record_finish != NULL )
4717 ssl_hw_record_finish( ssl );
4727 #if defined(POLARSSL_PK_C)
4733 #if defined(POLARSSL_RSA_C)
4737 #if defined(POLARSSL_ECDSA_C)
4748 #if defined(POLARSSL_RSA_C)
4752 #if defined(POLARSSL_ECDSA_C)
4769 #if defined(POLARSSL_MD5_C)
4773 #if defined(POLARSSL_SHA1_C)
4777 #if defined(POLARSSL_SHA256_C)
4783 #if defined(POLARSSL_SHA512_C)
4794 #if defined(POLARSSL_SSL_SET_CURVES)
4804 if( *gid == grp_id )
4811 #if defined(POLARSSL_X509_CRT_PARSE_C)
4816 #if defined(POLARSSL_X509_CHECK_KEY_USAGE)
4819 #if defined(POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
4820 const char *ext_oid;
4824 #if !defined(POLARSSL_X509_CHECK_KEY_USAGE) && \
4825 !defined(POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
4827 ((void) cert_endpoint);
4830 #if defined(POLARSSL_X509_CHECK_KEY_USAGE)
4869 ((void) ciphersuite);
4872 #if defined(POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)