diff options
Diffstat (limited to 'thirdparty/mbedtls/library/ssl_tls.c')
| -rw-r--r-- | thirdparty/mbedtls/library/ssl_tls.c | 5747 |
1 files changed, 2798 insertions, 2949 deletions
diff --git a/thirdparty/mbedtls/library/ssl_tls.c b/thirdparty/mbedtls/library/ssl_tls.c index 70196a4861..494de1b93e 100644 --- a/thirdparty/mbedtls/library/ssl_tls.c +++ b/thirdparty/mbedtls/library/ssl_tls.c @@ -55,93 +55,88 @@ #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) /* Top-level Connection ID API */ -int mbedtls_ssl_conf_cid( mbedtls_ssl_config *conf, - size_t len, - int ignore_other_cid ) +int mbedtls_ssl_conf_cid(mbedtls_ssl_config *conf, + size_t len, + int ignore_other_cid) { - if( len > MBEDTLS_SSL_CID_IN_LEN_MAX ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (len > MBEDTLS_SSL_CID_IN_LEN_MAX) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - if( ignore_other_cid != MBEDTLS_SSL_UNEXPECTED_CID_FAIL && - ignore_other_cid != MBEDTLS_SSL_UNEXPECTED_CID_IGNORE ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ignore_other_cid != MBEDTLS_SSL_UNEXPECTED_CID_FAIL && + ignore_other_cid != MBEDTLS_SSL_UNEXPECTED_CID_IGNORE) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } conf->ignore_unexpected_cid = ignore_other_cid; conf->cid_len = len; - return( 0 ); + return 0; } -int mbedtls_ssl_set_cid( mbedtls_ssl_context *ssl, - int enable, - unsigned char const *own_cid, - size_t own_cid_len ) +int mbedtls_ssl_set_cid(mbedtls_ssl_context *ssl, + int enable, + unsigned char const *own_cid, + size_t own_cid_len) { - if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } ssl->negotiate_cid = enable; - if( enable == MBEDTLS_SSL_CID_DISABLED ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Disable use of CID extension." ) ); - return( 0 ); + if (enable == MBEDTLS_SSL_CID_DISABLED) { + MBEDTLS_SSL_DEBUG_MSG(3, ("Disable use of CID extension.")); + return 0; } - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Enable use of CID extension." ) ); - MBEDTLS_SSL_DEBUG_BUF( 3, "Own CID", own_cid, own_cid_len ); + MBEDTLS_SSL_DEBUG_MSG(3, ("Enable use of CID extension.")); + MBEDTLS_SSL_DEBUG_BUF(3, "Own CID", own_cid, own_cid_len); - if( own_cid_len != ssl->conf->cid_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "CID length %u does not match CID length %u in config", - (unsigned) own_cid_len, - (unsigned) ssl->conf->cid_len ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (own_cid_len != ssl->conf->cid_len) { + MBEDTLS_SSL_DEBUG_MSG(3, ("CID length %u does not match CID length %u in config", + (unsigned) own_cid_len, + (unsigned) ssl->conf->cid_len)); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - memcpy( ssl->own_cid, own_cid, own_cid_len ); + memcpy(ssl->own_cid, own_cid, own_cid_len); /* Truncation is not an issue here because * MBEDTLS_SSL_CID_IN_LEN_MAX at most 255. */ ssl->own_cid_len = (uint8_t) own_cid_len; - return( 0 ); + return 0; } -int mbedtls_ssl_get_peer_cid( mbedtls_ssl_context *ssl, - int *enabled, - unsigned char peer_cid[ MBEDTLS_SSL_CID_OUT_LEN_MAX ], - size_t *peer_cid_len ) +int mbedtls_ssl_get_peer_cid(mbedtls_ssl_context *ssl, + int *enabled, + unsigned char peer_cid[MBEDTLS_SSL_CID_OUT_LEN_MAX], + size_t *peer_cid_len) { *enabled = MBEDTLS_SSL_CID_DISABLED; - if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM || - ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM || + ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } /* We report MBEDTLS_SSL_CID_DISABLED in case the CID extensions * were used, but client and server requested the empty CID. * This is indistinguishable from not using the CID extension * in the first place. */ - if( ssl->transform_in->in_cid_len == 0 && - ssl->transform_in->out_cid_len == 0 ) - { - return( 0 ); + if (ssl->transform_in->in_cid_len == 0 && + ssl->transform_in->out_cid_len == 0) { + return 0; } - if( peer_cid_len != NULL ) - { + if (peer_cid_len != NULL) { *peer_cid_len = ssl->transform_in->out_cid_len; - if( peer_cid != NULL ) - { - memcpy( peer_cid, ssl->transform_in->out_cid, - ssl->transform_in->out_cid_len ); + if (peer_cid != NULL) { + memcpy(peer_cid, ssl->transform_in->out_cid, + ssl->transform_in->out_cid_len); } } *enabled = MBEDTLS_SSL_CID_ENABLED; - return( 0 ); + return 0; } #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ @@ -156,31 +151,30 @@ int mbedtls_ssl_get_peer_cid( mbedtls_ssl_context *ssl, * } MaxFragmentLength; * and we add 0 -> extension unused */ -static unsigned int ssl_mfl_code_to_length( int mfl ) -{ - switch( mfl ) - { - case MBEDTLS_SSL_MAX_FRAG_LEN_NONE: - return ( MBEDTLS_TLS_EXT_ADV_CONTENT_LEN ); - case MBEDTLS_SSL_MAX_FRAG_LEN_512: - return 512; - case MBEDTLS_SSL_MAX_FRAG_LEN_1024: - return 1024; - case MBEDTLS_SSL_MAX_FRAG_LEN_2048: - return 2048; - case MBEDTLS_SSL_MAX_FRAG_LEN_4096: - return 4096; - default: - return ( MBEDTLS_TLS_EXT_ADV_CONTENT_LEN ); +static unsigned int ssl_mfl_code_to_length(int mfl) +{ + switch (mfl) { + case MBEDTLS_SSL_MAX_FRAG_LEN_NONE: + return MBEDTLS_TLS_EXT_ADV_CONTENT_LEN; + case MBEDTLS_SSL_MAX_FRAG_LEN_512: + return 512; + case MBEDTLS_SSL_MAX_FRAG_LEN_1024: + return 1024; + case MBEDTLS_SSL_MAX_FRAG_LEN_2048: + return 2048; + case MBEDTLS_SSL_MAX_FRAG_LEN_4096: + return 4096; + default: + return MBEDTLS_TLS_EXT_ADV_CONTENT_LEN; } } #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ -int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst, - const mbedtls_ssl_session *src ) +int mbedtls_ssl_session_copy(mbedtls_ssl_session *dst, + const mbedtls_ssl_session *src) { - mbedtls_ssl_session_free( dst ); - memcpy( dst, src, sizeof( mbedtls_ssl_session ) ); + mbedtls_ssl_session_free(dst); + memcpy(dst, src, sizeof(mbedtls_ssl_session)); #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) dst->ticket = NULL; @@ -189,34 +183,33 @@ int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst, #if defined(MBEDTLS_X509_CRT_PARSE_C) #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - if( src->peer_cert != NULL ) - { + if (src->peer_cert != NULL) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - dst->peer_cert = mbedtls_calloc( 1, sizeof(mbedtls_x509_crt) ); - if( dst->peer_cert == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + dst->peer_cert = mbedtls_calloc(1, sizeof(mbedtls_x509_crt)); + if (dst->peer_cert == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } - mbedtls_x509_crt_init( dst->peer_cert ); + mbedtls_x509_crt_init(dst->peer_cert); - if( ( ret = mbedtls_x509_crt_parse_der( dst->peer_cert, src->peer_cert->raw.p, - src->peer_cert->raw.len ) ) != 0 ) - { - mbedtls_free( dst->peer_cert ); + if ((ret = mbedtls_x509_crt_parse_der(dst->peer_cert, src->peer_cert->raw.p, + src->peer_cert->raw.len)) != 0) { + mbedtls_free(dst->peer_cert); dst->peer_cert = NULL; - return( ret ); + return ret; } } #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( src->peer_cert_digest != NULL ) - { + if (src->peer_cert_digest != NULL) { dst->peer_cert_digest = - mbedtls_calloc( 1, src->peer_cert_digest_len ); - if( dst->peer_cert_digest == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + mbedtls_calloc(1, src->peer_cert_digest_len); + if (dst->peer_cert_digest == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } - memcpy( dst->peer_cert_digest, src->peer_cert_digest, - src->peer_cert_digest_len ); + memcpy(dst->peer_cert_digest, src->peer_cert_digest, + src->peer_cert_digest_len); dst->peer_cert_digest_type = src->peer_cert_digest_type; dst->peer_cert_digest_len = src->peer_cert_digest_len; } @@ -225,35 +218,36 @@ int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst, #endif /* MBEDTLS_X509_CRT_PARSE_C */ #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) - if( src->ticket != NULL ) - { - dst->ticket = mbedtls_calloc( 1, src->ticket_len ); - if( dst->ticket == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + if (src->ticket != NULL) { + dst->ticket = mbedtls_calloc(1, src->ticket_len); + if (dst->ticket == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } - memcpy( dst->ticket, src->ticket, src->ticket_len ); + memcpy(dst->ticket, src->ticket, src->ticket_len); } #endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ - return( 0 ); + return 0; } #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) MBEDTLS_CHECK_RETURN_CRITICAL -static int resize_buffer( unsigned char **buffer, size_t len_new, size_t *len_old ) +static int resize_buffer(unsigned char **buffer, size_t len_new, size_t *len_old) { - unsigned char* resized_buffer = mbedtls_calloc( 1, len_new ); - if( resized_buffer == NULL ) + unsigned char *resized_buffer = mbedtls_calloc(1, len_new); + if (resized_buffer == NULL) { return -1; + } /* We want to copy len_new bytes when downsizing the buffer, and * len_old bytes when upsizing, so we choose the smaller of two sizes, * to fit one buffer into another. Size checks, ensuring that no data is * lost, are done outside of this function. */ - memcpy( resized_buffer, *buffer, - ( len_new < *len_old ) ? len_new : *len_old ); - mbedtls_platform_zeroize( *buffer, *len_old ); - mbedtls_free( *buffer ); + memcpy(resized_buffer, *buffer, + (len_new < *len_old) ? len_new : *len_old); + mbedtls_platform_zeroize(*buffer, *len_old); + mbedtls_free(*buffer); *buffer = resized_buffer; *len_old = len_new; @@ -261,60 +255,49 @@ static int resize_buffer( unsigned char **buffer, size_t len_new, size_t *len_ol return 0; } -static void handle_buffer_resizing( mbedtls_ssl_context *ssl, int downsizing, - size_t in_buf_new_len, - size_t out_buf_new_len ) +static void handle_buffer_resizing(mbedtls_ssl_context *ssl, int downsizing, + size_t in_buf_new_len, + size_t out_buf_new_len) { int modified = 0; size_t written_in = 0, iv_offset_in = 0, len_offset_in = 0; size_t written_out = 0, iv_offset_out = 0, len_offset_out = 0; - if( ssl->in_buf != NULL ) - { + if (ssl->in_buf != NULL) { written_in = ssl->in_msg - ssl->in_buf; iv_offset_in = ssl->in_iv - ssl->in_buf; len_offset_in = ssl->in_len - ssl->in_buf; - if( downsizing ? + if (downsizing ? ssl->in_buf_len > in_buf_new_len && ssl->in_left < in_buf_new_len : - ssl->in_buf_len < in_buf_new_len ) - { - if( resize_buffer( &ssl->in_buf, in_buf_new_len, &ssl->in_buf_len ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "input buffer resizing failed - out of memory" ) ); - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reallocating in_buf to %" MBEDTLS_PRINTF_SIZET, - in_buf_new_len ) ); + ssl->in_buf_len < in_buf_new_len) { + if (resize_buffer(&ssl->in_buf, in_buf_new_len, &ssl->in_buf_len) != 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("input buffer resizing failed - out of memory")); + } else { + MBEDTLS_SSL_DEBUG_MSG(2, ("Reallocating in_buf to %" MBEDTLS_PRINTF_SIZET, + in_buf_new_len)); modified = 1; } } } - if( ssl->out_buf != NULL ) - { + if (ssl->out_buf != NULL) { written_out = ssl->out_msg - ssl->out_buf; iv_offset_out = ssl->out_iv - ssl->out_buf; len_offset_out = ssl->out_len - ssl->out_buf; - if( downsizing ? + if (downsizing ? ssl->out_buf_len > out_buf_new_len && ssl->out_left < out_buf_new_len : - ssl->out_buf_len < out_buf_new_len ) - { - if( resize_buffer( &ssl->out_buf, out_buf_new_len, &ssl->out_buf_len ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "output buffer resizing failed - out of memory" ) ); - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reallocating out_buf to %" MBEDTLS_PRINTF_SIZET, - out_buf_new_len ) ); + ssl->out_buf_len < out_buf_new_len) { + if (resize_buffer(&ssl->out_buf, out_buf_new_len, &ssl->out_buf_len) != 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("output buffer resizing failed - out of memory")); + } else { + MBEDTLS_SSL_DEBUG_MSG(2, ("Reallocating out_buf to %" MBEDTLS_PRINTF_SIZET, + out_buf_new_len)); modified = 1; } } } - if( modified ) - { + if (modified) { /* Update pointers here to avoid doing it twice. */ - mbedtls_ssl_reset_in_out_pointers( ssl ); + mbedtls_ssl_reset_in_out_pointers(ssl); /* Fields below might not be properly updated with record * splitting or with CID, so they are manually updated here. */ ssl->out_msg = ssl->out_buf + written_out; @@ -333,10 +316,10 @@ static void handle_buffer_resizing( mbedtls_ssl_context *ssl, int downsizing, */ #if defined(MBEDTLS_SSL_PROTO_SSL3) MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl3_prf( const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) +static int ssl3_prf(const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen) { int ret = 0; size_t i; @@ -344,10 +327,10 @@ static int ssl3_prf( const unsigned char *secret, size_t slen, mbedtls_sha1_context sha1; unsigned char padding[16]; unsigned char sha1sum[20]; - ((void)label); + ((void) label); - mbedtls_md5_init( &md5 ); - mbedtls_sha1_init( &sha1 ); + mbedtls_md5_init(&md5); + mbedtls_sha1_init(&sha1); /* * SSLv3: @@ -357,48 +340,56 @@ static int ssl3_prf( const unsigned char *secret, size_t slen, * MD5( secret + SHA1( 'CCC' + secret + random ) ) + * ... */ - for( i = 0; i < dlen / 16; i++ ) - { - memset( padding, (unsigned char) ('A' + i), 1 + i ); + for (i = 0; i < dlen / 16; i++) { + memset(padding, (unsigned char) ('A' + i), 1 + i); - if( ( ret = mbedtls_sha1_starts_ret( &sha1 ) ) != 0 ) + if ((ret = mbedtls_sha1_starts_ret(&sha1)) != 0) { goto exit; - if( ( ret = mbedtls_sha1_update_ret( &sha1, padding, 1 + i ) ) != 0 ) + } + if ((ret = mbedtls_sha1_update_ret(&sha1, padding, 1 + i)) != 0) { goto exit; - if( ( ret = mbedtls_sha1_update_ret( &sha1, secret, slen ) ) != 0 ) + } + if ((ret = mbedtls_sha1_update_ret(&sha1, secret, slen)) != 0) { goto exit; - if( ( ret = mbedtls_sha1_update_ret( &sha1, random, rlen ) ) != 0 ) + } + if ((ret = mbedtls_sha1_update_ret(&sha1, random, rlen)) != 0) { goto exit; - if( ( ret = mbedtls_sha1_finish_ret( &sha1, sha1sum ) ) != 0 ) + } + if ((ret = mbedtls_sha1_finish_ret(&sha1, sha1sum)) != 0) { goto exit; + } - if( ( ret = mbedtls_md5_starts_ret( &md5 ) ) != 0 ) + if ((ret = mbedtls_md5_starts_ret(&md5)) != 0) { goto exit; - if( ( ret = mbedtls_md5_update_ret( &md5, secret, slen ) ) != 0 ) + } + if ((ret = mbedtls_md5_update_ret(&md5, secret, slen)) != 0) { goto exit; - if( ( ret = mbedtls_md5_update_ret( &md5, sha1sum, 20 ) ) != 0 ) + } + if ((ret = mbedtls_md5_update_ret(&md5, sha1sum, 20)) != 0) { goto exit; - if( ( ret = mbedtls_md5_finish_ret( &md5, dstbuf + i * 16 ) ) != 0 ) + } + if ((ret = mbedtls_md5_finish_ret(&md5, dstbuf + i * 16)) != 0) { goto exit; + } } exit: - mbedtls_md5_free( &md5 ); - mbedtls_sha1_free( &sha1 ); + mbedtls_md5_free(&md5); + mbedtls_sha1_free(&sha1); - mbedtls_platform_zeroize( padding, sizeof( padding ) ); - mbedtls_platform_zeroize( sha1sum, sizeof( sha1sum ) ); + mbedtls_platform_zeroize(padding, sizeof(padding)); + mbedtls_platform_zeroize(sha1sum, sizeof(sha1sum)); - return( ret ); + return ret; } #endif /* MBEDTLS_SSL_PROTO_SSL3 */ #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) MBEDTLS_CHECK_RETURN_CRITICAL -static int tls1_prf( const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) +static int tls1_prf(const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen) { size_t nb, hs; size_t i, j, k; @@ -410,204 +401,216 @@ static int tls1_prf( const unsigned char *secret, size_t slen, mbedtls_md_context_t md_ctx; int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - mbedtls_md_init( &md_ctx ); + mbedtls_md_init(&md_ctx); - tmp_len = 20 + strlen( label ) + rlen; - tmp = mbedtls_calloc( 1, tmp_len ); - if( tmp == NULL ) - { + tmp_len = 20 + strlen(label) + rlen; + tmp = mbedtls_calloc(1, tmp_len); + if (tmp == NULL) { ret = MBEDTLS_ERR_SSL_ALLOC_FAILED; goto exit; } - hs = ( slen + 1 ) / 2; + hs = (slen + 1) / 2; S1 = secret; S2 = secret + slen - hs; - nb = strlen( label ); - memcpy( tmp + 20, label, nb ); - memcpy( tmp + 20 + nb, random, rlen ); + nb = strlen(label); + memcpy(tmp + 20, label, nb); + memcpy(tmp + 20 + nb, random, rlen); nb += rlen; /* * First compute P_md5(secret,label+random)[0..dlen] */ - if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_MD5 ) ) == NULL ) - { + if ((md_info = mbedtls_md_info_from_type(MBEDTLS_MD_MD5)) == NULL) { ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR; goto exit; } - if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) - { + if ((ret = mbedtls_md_setup(&md_ctx, md_info, 1)) != 0) { goto exit; } - ret = mbedtls_md_hmac_starts( &md_ctx, S1, hs ); - if( ret != 0 ) + ret = mbedtls_md_hmac_starts(&md_ctx, S1, hs); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_update(&md_ctx, tmp + 20, nb); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_finish( &md_ctx, 4 + tmp ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_finish(&md_ctx, 4 + tmp); + if (ret != 0) { goto exit; + } - for( i = 0; i < dlen; i += 16 ) - { - ret = mbedtls_md_hmac_reset ( &md_ctx ); - if( ret != 0 ) + for (i = 0; i < dlen; i += 16) { + ret = mbedtls_md_hmac_reset(&md_ctx); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 + nb ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_update(&md_ctx, 4 + tmp, 16 + nb); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_finish( &md_ctx, h_i ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_finish(&md_ctx, h_i); + if (ret != 0) { goto exit; + } - ret = mbedtls_md_hmac_reset ( &md_ctx ); - if( ret != 0 ) + ret = mbedtls_md_hmac_reset(&md_ctx); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_update(&md_ctx, 4 + tmp, 16); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_finish( &md_ctx, 4 + tmp ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_finish(&md_ctx, 4 + tmp); + if (ret != 0) { goto exit; + } - k = ( i + 16 > dlen ) ? dlen % 16 : 16; + k = (i + 16 > dlen) ? dlen % 16 : 16; - for( j = 0; j < k; j++ ) + for (j = 0; j < k; j++) { dstbuf[i + j] = h_i[j]; + } } - mbedtls_md_free( &md_ctx ); + mbedtls_md_free(&md_ctx); /* * XOR out with P_sha1(secret,label+random)[0..dlen] */ - if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ) ) == NULL ) - { + if ((md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA1)) == NULL) { ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR; goto exit; } - if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) - { + if ((ret = mbedtls_md_setup(&md_ctx, md_info, 1)) != 0) { goto exit; } - ret = mbedtls_md_hmac_starts( &md_ctx, S2, hs ); - if( ret != 0 ) + ret = mbedtls_md_hmac_starts(&md_ctx, S2, hs); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_update(&md_ctx, tmp + 20, nb); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_finish( &md_ctx, tmp ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_finish(&md_ctx, tmp); + if (ret != 0) { goto exit; + } - for( i = 0; i < dlen; i += 20 ) - { - ret = mbedtls_md_hmac_reset ( &md_ctx ); - if( ret != 0 ) + for (i = 0; i < dlen; i += 20) { + ret = mbedtls_md_hmac_reset(&md_ctx); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_update( &md_ctx, tmp, 20 + nb ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_update(&md_ctx, tmp, 20 + nb); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_finish( &md_ctx, h_i ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_finish(&md_ctx, h_i); + if (ret != 0) { goto exit; + } - ret = mbedtls_md_hmac_reset ( &md_ctx ); - if( ret != 0 ) + ret = mbedtls_md_hmac_reset(&md_ctx); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_update( &md_ctx, tmp, 20 ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_update(&md_ctx, tmp, 20); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_finish( &md_ctx, tmp ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_finish(&md_ctx, tmp); + if (ret != 0) { goto exit; + } - k = ( i + 20 > dlen ) ? dlen % 20 : 20; + k = (i + 20 > dlen) ? dlen % 20 : 20; - for( j = 0; j < k; j++ ) - dstbuf[i + j] = (unsigned char)( dstbuf[i + j] ^ h_i[j] ); + for (j = 0; j < k; j++) { + dstbuf[i + j] = (unsigned char) (dstbuf[i + j] ^ h_i[j]); + } } exit: - mbedtls_md_free( &md_ctx ); + mbedtls_md_free(&md_ctx); - mbedtls_platform_zeroize( tmp, tmp_len ); - mbedtls_platform_zeroize( h_i, sizeof( h_i ) ); + mbedtls_platform_zeroize(tmp, tmp_len); + mbedtls_platform_zeroize(h_i, sizeof(h_i)); - mbedtls_free( tmp ); - return( ret ); + mbedtls_free(tmp); + return ret; } #endif /* MBEDTLS_SSL_PROTO_TLS1) || MBEDTLS_SSL_PROTO_TLS1_1 */ #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_USE_PSA_CRYPTO) -static psa_status_t setup_psa_key_derivation( psa_key_derivation_operation_t* derivation, - psa_key_id_t key, - psa_algorithm_t alg, - const unsigned char* seed, size_t seed_length, - const unsigned char* label, size_t label_length, - size_t capacity ) +static psa_status_t setup_psa_key_derivation(psa_key_derivation_operation_t *derivation, + psa_key_id_t key, + psa_algorithm_t alg, + const unsigned char *seed, size_t seed_length, + const unsigned char *label, size_t label_length, + size_t capacity) { psa_status_t status; - status = psa_key_derivation_setup( derivation, alg ); - if( status != PSA_SUCCESS ) - return( status ); + status = psa_key_derivation_setup(derivation, alg); + if (status != PSA_SUCCESS) { + return status; + } - if( PSA_ALG_IS_TLS12_PRF( alg ) || PSA_ALG_IS_TLS12_PSK_TO_MS( alg ) ) - { - status = psa_key_derivation_input_bytes( derivation, - PSA_KEY_DERIVATION_INPUT_SEED, - seed, seed_length ); - if( status != PSA_SUCCESS ) - return( status ); + if (PSA_ALG_IS_TLS12_PRF(alg) || PSA_ALG_IS_TLS12_PSK_TO_MS(alg)) { + status = psa_key_derivation_input_bytes(derivation, + PSA_KEY_DERIVATION_INPUT_SEED, + seed, seed_length); + if (status != PSA_SUCCESS) { + return status; + } - if( mbedtls_svc_key_id_is_null( key ) ) - { + if (mbedtls_svc_key_id_is_null(key)) { status = psa_key_derivation_input_bytes( derivation, PSA_KEY_DERIVATION_INPUT_SECRET, - NULL, 0 ); - } - else - { + NULL, 0); + } else { status = psa_key_derivation_input_key( - derivation, PSA_KEY_DERIVATION_INPUT_SECRET, key ); + derivation, PSA_KEY_DERIVATION_INPUT_SECRET, key); + } + if (status != PSA_SUCCESS) { + return status; } - if( status != PSA_SUCCESS ) - return( status ); - status = psa_key_derivation_input_bytes( derivation, - PSA_KEY_DERIVATION_INPUT_LABEL, - label, label_length ); - if( status != PSA_SUCCESS ) - return( status ); - } - else - { - return( PSA_ERROR_NOT_SUPPORTED ); + status = psa_key_derivation_input_bytes(derivation, + PSA_KEY_DERIVATION_INPUT_LABEL, + label, label_length); + if (status != PSA_SUCCESS) { + return status; + } + } else { + return PSA_ERROR_NOT_SUPPORTED; } - status = psa_key_derivation_set_capacity( derivation, capacity ); - if( status != PSA_SUCCESS ) - return( status ); + status = psa_key_derivation_set_capacity(derivation, capacity); + if (status != PSA_SUCCESS) { + return status; + } - return( PSA_SUCCESS ); + return PSA_SUCCESS; } MBEDTLS_CHECK_RETURN_CRITICAL -static int tls_prf_generic( mbedtls_md_type_t md_type, - const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) +static int tls_prf_generic(mbedtls_md_type_t md_type, + const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen) { psa_status_t status; psa_algorithm_t alg; @@ -615,10 +618,11 @@ static int tls_prf_generic( mbedtls_md_type_t md_type, psa_key_derivation_operation_t derivation = PSA_KEY_DERIVATION_OPERATION_INIT; - if( md_type == MBEDTLS_MD_SHA384 ) + if (md_type == MBEDTLS_MD_SHA384) { alg = PSA_ALG_TLS12_PRF(PSA_ALG_SHA_384); - else + } else { alg = PSA_ALG_TLS12_PRF(PSA_ALG_SHA_256); + } /* Normally a "secret" should be long enough to be impossible to * find by brute force, and in particular should not be empty. But @@ -627,62 +631,61 @@ static int tls_prf_generic( mbedtls_md_type_t md_type, * Since the key API doesn't allow importing a key of length 0, * keep master_key=0, which setup_psa_key_derivation() understands * to mean a 0-length "secret" input. */ - if( slen != 0 ) - { + if (slen != 0) { psa_key_attributes_t key_attributes = psa_key_attributes_init(); - psa_set_key_usage_flags( &key_attributes, PSA_KEY_USAGE_DERIVE ); - psa_set_key_algorithm( &key_attributes, alg ); - psa_set_key_type( &key_attributes, PSA_KEY_TYPE_DERIVE ); - - status = psa_import_key( &key_attributes, secret, slen, &master_key ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - - status = setup_psa_key_derivation( &derivation, - master_key, alg, - random, rlen, - (unsigned char const *) label, - (size_t) strlen( label ), - dlen ); - if( status != PSA_SUCCESS ) - { - psa_key_derivation_abort( &derivation ); - psa_destroy_key( master_key ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + psa_set_key_usage_flags(&key_attributes, PSA_KEY_USAGE_DERIVE); + psa_set_key_algorithm(&key_attributes, alg); + psa_set_key_type(&key_attributes, PSA_KEY_TYPE_DERIVE); + + status = psa_import_key(&key_attributes, secret, slen, &master_key); + if (status != PSA_SUCCESS) { + return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; + } } - status = psa_key_derivation_output_bytes( &derivation, dstbuf, dlen ); - if( status != PSA_SUCCESS ) - { - psa_key_derivation_abort( &derivation ); - psa_destroy_key( master_key ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + status = setup_psa_key_derivation(&derivation, + master_key, alg, + random, rlen, + (unsigned char const *) label, + (size_t) strlen(label), + dlen); + if (status != PSA_SUCCESS) { + psa_key_derivation_abort(&derivation); + psa_destroy_key(master_key); + return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; } - status = psa_key_derivation_abort( &derivation ); - if( status != PSA_SUCCESS ) - { - psa_destroy_key( master_key ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + status = psa_key_derivation_output_bytes(&derivation, dstbuf, dlen); + if (status != PSA_SUCCESS) { + psa_key_derivation_abort(&derivation); + psa_destroy_key(master_key); + return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; } - if( ! mbedtls_svc_key_id_is_null( master_key ) ) - status = psa_destroy_key( master_key ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + status = psa_key_derivation_abort(&derivation); + if (status != PSA_SUCCESS) { + psa_destroy_key(master_key); + return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; + } + + if (!mbedtls_svc_key_id_is_null(master_key)) { + status = psa_destroy_key(master_key); + } + if (status != PSA_SUCCESS) { + return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; + } - return( 0 ); + return 0; } #else /* MBEDTLS_USE_PSA_CRYPTO */ MBEDTLS_CHECK_RETURN_CRITICAL -static int tls_prf_generic( mbedtls_md_type_t md_type, - const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) +static int tls_prf_generic(mbedtls_md_type_t md_type, + const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen) { size_t nb; size_t i, j, k, md_len; @@ -693,237 +696,240 @@ static int tls_prf_generic( mbedtls_md_type_t md_type, mbedtls_md_context_t md_ctx; int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - mbedtls_md_init( &md_ctx ); + mbedtls_md_init(&md_ctx); - if( ( md_info = mbedtls_md_info_from_type( md_type ) ) == NULL ) - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + if ((md_info = mbedtls_md_info_from_type(md_type)) == NULL) { + return MBEDTLS_ERR_SSL_INTERNAL_ERROR; + } - md_len = mbedtls_md_get_size( md_info ); + md_len = mbedtls_md_get_size(md_info); - tmp_len = md_len + strlen( label ) + rlen; - tmp = mbedtls_calloc( 1, tmp_len ); - if( tmp == NULL ) - { + tmp_len = md_len + strlen(label) + rlen; + tmp = mbedtls_calloc(1, tmp_len); + if (tmp == NULL) { ret = MBEDTLS_ERR_SSL_ALLOC_FAILED; goto exit; } - nb = strlen( label ); - memcpy( tmp + md_len, label, nb ); - memcpy( tmp + md_len + nb, random, rlen ); + nb = strlen(label); + memcpy(tmp + md_len, label, nb); + memcpy(tmp + md_len + nb, random, rlen); nb += rlen; /* * Compute P_<hash>(secret, label + random)[0..dlen] */ - if ( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) + if ((ret = mbedtls_md_setup(&md_ctx, md_info, 1)) != 0) { goto exit; + } - ret = mbedtls_md_hmac_starts( &md_ctx, secret, slen ); - if( ret != 0 ) + ret = mbedtls_md_hmac_starts(&md_ctx, secret, slen); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_update( &md_ctx, tmp + md_len, nb ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_update(&md_ctx, tmp + md_len, nb); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_finish( &md_ctx, tmp ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_finish(&md_ctx, tmp); + if (ret != 0) { goto exit; + } - for( i = 0; i < dlen; i += md_len ) - { - ret = mbedtls_md_hmac_reset ( &md_ctx ); - if( ret != 0 ) + for (i = 0; i < dlen; i += md_len) { + ret = mbedtls_md_hmac_reset(&md_ctx); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_update( &md_ctx, tmp, md_len + nb ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_update(&md_ctx, tmp, md_len + nb); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_finish( &md_ctx, h_i ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_finish(&md_ctx, h_i); + if (ret != 0) { goto exit; + } - ret = mbedtls_md_hmac_reset ( &md_ctx ); - if( ret != 0 ) + ret = mbedtls_md_hmac_reset(&md_ctx); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_update( &md_ctx, tmp, md_len ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_update(&md_ctx, tmp, md_len); + if (ret != 0) { goto exit; - ret = mbedtls_md_hmac_finish( &md_ctx, tmp ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_finish(&md_ctx, tmp); + if (ret != 0) { goto exit; + } - k = ( i + md_len > dlen ) ? dlen % md_len : md_len; + k = (i + md_len > dlen) ? dlen % md_len : md_len; - for( j = 0; j < k; j++ ) + for (j = 0; j < k; j++) { dstbuf[i + j] = h_i[j]; + } } exit: - mbedtls_md_free( &md_ctx ); + mbedtls_md_free(&md_ctx); - if ( tmp != NULL ) - mbedtls_platform_zeroize( tmp, tmp_len ); + if (tmp != NULL) { + mbedtls_platform_zeroize(tmp, tmp_len); + } - mbedtls_platform_zeroize( h_i, sizeof( h_i ) ); + mbedtls_platform_zeroize(h_i, sizeof(h_i)); - mbedtls_free( tmp ); + mbedtls_free(tmp); - return( ret ); + return ret; } #endif /* MBEDTLS_USE_PSA_CRYPTO */ #if defined(MBEDTLS_SHA256_C) MBEDTLS_CHECK_RETURN_CRITICAL -static int tls_prf_sha256( const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) +static int tls_prf_sha256(const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen) { - return( tls_prf_generic( MBEDTLS_MD_SHA256, secret, slen, - label, random, rlen, dstbuf, dlen ) ); + return tls_prf_generic(MBEDTLS_MD_SHA256, secret, slen, + label, random, rlen, dstbuf, dlen); } #endif /* MBEDTLS_SHA256_C */ #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) MBEDTLS_CHECK_RETURN_CRITICAL -static int tls_prf_sha384( const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) +static int tls_prf_sha384(const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen) { - return( tls_prf_generic( MBEDTLS_MD_SHA384, secret, slen, - label, random, rlen, dstbuf, dlen ) ); + return tls_prf_generic(MBEDTLS_MD_SHA384, secret, slen, + label, random, rlen, dstbuf, dlen); } #endif /* MBEDTLS_SHA512_C && !MBEDTLS_SHA512_NO_SHA384 */ #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ -static void ssl_update_checksum_start( mbedtls_ssl_context *, const unsigned char *, size_t ); +static void ssl_update_checksum_start(mbedtls_ssl_context *, const unsigned char *, size_t); #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ defined(MBEDTLS_SSL_PROTO_TLS1_1) -static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *, const unsigned char *, size_t ); +static void ssl_update_checksum_md5sha1(mbedtls_ssl_context *, const unsigned char *, size_t); #endif #if defined(MBEDTLS_SSL_PROTO_SSL3) -static void ssl_calc_verify_ssl( const mbedtls_ssl_context *, unsigned char *, size_t * ); -static void ssl_calc_finished_ssl( mbedtls_ssl_context *, unsigned char *, int ); +static void ssl_calc_verify_ssl(const mbedtls_ssl_context *, unsigned char *, size_t *); +static void ssl_calc_finished_ssl(mbedtls_ssl_context *, unsigned char *, int); #endif #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) -static void ssl_calc_verify_tls( const mbedtls_ssl_context *, unsigned char*, size_t * ); -static void ssl_calc_finished_tls( mbedtls_ssl_context *, unsigned char *, int ); +static void ssl_calc_verify_tls(const mbedtls_ssl_context *, unsigned char *, size_t *); +static void ssl_calc_finished_tls(mbedtls_ssl_context *, unsigned char *, int); #endif #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA256_C) -static void ssl_update_checksum_sha256( mbedtls_ssl_context *, const unsigned char *, size_t ); -static void ssl_calc_verify_tls_sha256( const mbedtls_ssl_context *,unsigned char*, size_t * ); -static void ssl_calc_finished_tls_sha256( mbedtls_ssl_context *,unsigned char *, int ); +static void ssl_update_checksum_sha256(mbedtls_ssl_context *, const unsigned char *, size_t); +static void ssl_calc_verify_tls_sha256(const mbedtls_ssl_context *, unsigned char *, size_t *); +static void ssl_calc_finished_tls_sha256(mbedtls_ssl_context *, unsigned char *, int); #endif #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) -static void ssl_update_checksum_sha384( mbedtls_ssl_context *, const unsigned char *, size_t ); -static void ssl_calc_verify_tls_sha384( const mbedtls_ssl_context *, unsigned char*, size_t * ); -static void ssl_calc_finished_tls_sha384( mbedtls_ssl_context *, unsigned char *, int ); +static void ssl_update_checksum_sha384(mbedtls_ssl_context *, const unsigned char *, size_t); +static void ssl_calc_verify_tls_sha384(const mbedtls_ssl_context *, unsigned char *, size_t *); +static void ssl_calc_finished_tls_sha384(mbedtls_ssl_context *, unsigned char *, int); #endif #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ #if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) && \ defined(MBEDTLS_USE_PSA_CRYPTO) MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl ) +static int ssl_use_opaque_psk(mbedtls_ssl_context const *ssl) { - if( ssl->conf->f_psk != NULL ) - { + if (ssl->conf->f_psk != NULL) { /* If we've used a callback to select the PSK, * the static configuration is irrelevant. */ - if( ! mbedtls_svc_key_id_is_null( ssl->handshake->psk_opaque ) ) - return( 1 ); + if (!mbedtls_svc_key_id_is_null(ssl->handshake->psk_opaque)) { + return 1; + } - return( 0 ); + return 0; } - if( ! mbedtls_svc_key_id_is_null( ssl->conf->psk_opaque ) ) - return( 1 ); + if (!mbedtls_svc_key_id_is_null(ssl->conf->psk_opaque)) { + return 1; + } - return( 0 ); + return 0; } #endif /* MBEDTLS_USE_PSA_CRYPTO && MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ #if defined(MBEDTLS_SSL_EXPORT_KEYS) -static mbedtls_tls_prf_types tls_prf_get_type( mbedtls_ssl_tls_prf_cb *tls_prf ) +static mbedtls_tls_prf_types tls_prf_get_type(mbedtls_ssl_tls_prf_cb *tls_prf) { #if defined(MBEDTLS_SSL_PROTO_SSL3) - if( tls_prf == ssl3_prf ) - { - return( MBEDTLS_SSL_TLS_PRF_SSL3 ); - } - else + if (tls_prf == ssl3_prf) { + return MBEDTLS_SSL_TLS_PRF_SSL3; + } else #endif #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( tls_prf == tls1_prf ) - { - return( MBEDTLS_SSL_TLS_PRF_TLS1 ); - } - else + if (tls_prf == tls1_prf) { + return MBEDTLS_SSL_TLS_PRF_TLS1; + } else #endif #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) - if( tls_prf == tls_prf_sha384 ) - { - return( MBEDTLS_SSL_TLS_PRF_SHA384 ); - } - else + if (tls_prf == tls_prf_sha384) { + return MBEDTLS_SSL_TLS_PRF_SHA384; + } else #endif #if defined(MBEDTLS_SHA256_C) - if( tls_prf == tls_prf_sha256 ) - { - return( MBEDTLS_SSL_TLS_PRF_SHA256 ); - } - else + if (tls_prf == tls_prf_sha256) { + return MBEDTLS_SSL_TLS_PRF_SHA256; + } else #endif #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - return( MBEDTLS_SSL_TLS_PRF_NONE ); + return MBEDTLS_SSL_TLS_PRF_NONE; } #endif /* MBEDTLS_SSL_EXPORT_KEYS */ -int mbedtls_ssl_tls_prf( const mbedtls_tls_prf_types prf, - const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ) +int mbedtls_ssl_tls_prf(const mbedtls_tls_prf_types prf, + const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen) { mbedtls_ssl_tls_prf_cb *tls_prf = NULL; - switch( prf ) - { + switch (prf) { #if defined(MBEDTLS_SSL_PROTO_SSL3) case MBEDTLS_SSL_TLS_PRF_SSL3: tls_prf = ssl3_prf; - break; + break; #endif /* MBEDTLS_SSL_PROTO_SSL3 */ #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) case MBEDTLS_SSL_TLS_PRF_TLS1: tls_prf = tls1_prf; - break; + break; #endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */ #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) case MBEDTLS_SSL_TLS_PRF_SHA384: tls_prf = tls_prf_sha384; - break; + break; #endif /* MBEDTLS_SHA512_C && !MBEDTLS_SHA512_NO_SHA384 */ #if defined(MBEDTLS_SHA256_C) case MBEDTLS_SSL_TLS_PRF_SHA256: tls_prf = tls_prf_sha256; - break; + break; #endif /* MBEDTLS_SHA256_C */ #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - default: - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + default: + return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; } - return( tls_prf( secret, slen, label, random, rlen, dstbuf, dlen ) ); + return tls_prf(secret, slen, label, random, rlen, dstbuf, dlen); } /* Type for the TLS PRF */ @@ -954,28 +960,28 @@ typedef int ssl_tls_prf_t(const unsigned char *, size_t, const char *, * - MBEDTLS_DEBUG_C: ssl->conf->{f,p}_dbg */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_populate_transform( mbedtls_ssl_transform *transform, - int ciphersuite, - const unsigned char master[48], +static int ssl_populate_transform(mbedtls_ssl_transform *transform, + int ciphersuite, + const unsigned char master[48], #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC) #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - int encrypt_then_mac, + int encrypt_then_mac, #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - int trunc_hmac, + int trunc_hmac, #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ #endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */ #if defined(MBEDTLS_ZLIB_SUPPORT) - int compression, + int compression, #endif - ssl_tls_prf_t tls_prf, - const unsigned char randbytes[64], - int minor_ver, - unsigned endpoint, + ssl_tls_prf_t tls_prf, + const unsigned char randbytes[64], + int minor_ver, + unsigned endpoint, #if !defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - const + const #endif - mbedtls_ssl_context *ssl ) + mbedtls_ssl_context *ssl) { int ret = 0; #if defined(MBEDTLS_USE_PSA_CRYPTO) @@ -1012,71 +1018,66 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, transform->minor_ver = minor_ver; #if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION) - memcpy( transform->randbytes, randbytes, sizeof( transform->randbytes ) ); + memcpy(transform->randbytes, randbytes, sizeof(transform->randbytes)); #endif /* * Get various info structures */ - ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( ciphersuite ); - if( ciphersuite_info == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "ciphersuite info for %d not found", - ciphersuite ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + ciphersuite_info = mbedtls_ssl_ciphersuite_from_id(ciphersuite); + if (ciphersuite_info == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("ciphersuite info for %d not found", + ciphersuite)); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - cipher_info = mbedtls_cipher_info_from_type( ciphersuite_info->cipher ); - if( cipher_info == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "cipher info for %u not found", - ciphersuite_info->cipher ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + cipher_info = mbedtls_cipher_info_from_type(ciphersuite_info->cipher); + if (cipher_info == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("cipher info for %u not found", + ciphersuite_info->cipher)); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - md_info = mbedtls_md_info_from_type( ciphersuite_info->mac ); - if( md_info == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "mbedtls_md info for %u not found", - (unsigned) ciphersuite_info->mac ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + md_info = mbedtls_md_info_from_type(ciphersuite_info->mac); + if (md_info == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("mbedtls_md info for %u not found", + (unsigned) ciphersuite_info->mac)); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) /* Copy own and peer's CID if the use of the CID * extension has been negotiated. */ - if( ssl->handshake->cid_in_use == MBEDTLS_SSL_CID_ENABLED ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Copy CIDs into SSL transform" ) ); + if (ssl->handshake->cid_in_use == MBEDTLS_SSL_CID_ENABLED) { + MBEDTLS_SSL_DEBUG_MSG(3, ("Copy CIDs into SSL transform")); transform->in_cid_len = ssl->own_cid_len; - memcpy( transform->in_cid, ssl->own_cid, ssl->own_cid_len ); - MBEDTLS_SSL_DEBUG_BUF( 3, "Incoming CID", transform->in_cid, - transform->in_cid_len ); + memcpy(transform->in_cid, ssl->own_cid, ssl->own_cid_len); + MBEDTLS_SSL_DEBUG_BUF(3, "Incoming CID", transform->in_cid, + transform->in_cid_len); transform->out_cid_len = ssl->handshake->peer_cid_len; - memcpy( transform->out_cid, ssl->handshake->peer_cid, - ssl->handshake->peer_cid_len ); - MBEDTLS_SSL_DEBUG_BUF( 3, "Outgoing CID", transform->out_cid, - transform->out_cid_len ); + memcpy(transform->out_cid, ssl->handshake->peer_cid, + ssl->handshake->peer_cid_len); + MBEDTLS_SSL_DEBUG_BUF(3, "Outgoing CID", transform->out_cid, + transform->out_cid_len); } #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ /* * Compute key block using the PRF */ - ret = tls_prf( master, 48, "key expansion", randbytes, 64, keyblk, 256 ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret ); - return( ret ); + ret = tls_prf(master, 48, "key expansion", randbytes, 64, keyblk, 256); + if (ret != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "prf", ret); + return ret; } - MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite = %s", - mbedtls_ssl_get_ciphersuite_name( ciphersuite ) ) ); - MBEDTLS_SSL_DEBUG_BUF( 3, "master secret", master, 48 ); - MBEDTLS_SSL_DEBUG_BUF( 4, "random bytes", randbytes, 64 ); - MBEDTLS_SSL_DEBUG_BUF( 4, "key block", keyblk, 256 ); + MBEDTLS_SSL_DEBUG_MSG(3, ("ciphersuite = %s", + mbedtls_ssl_get_ciphersuite_name(ciphersuite))); + MBEDTLS_SSL_DEBUG_BUF(3, "master secret", master, 48); + MBEDTLS_SSL_DEBUG_BUF(4, "random bytes", randbytes, 64); + MBEDTLS_SSL_DEBUG_BUF(4, "key block", keyblk, 256); /* * Determine the appropriate key, IV and MAC length. @@ -1087,10 +1088,9 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, #if defined(MBEDTLS_GCM_C) || \ defined(MBEDTLS_CCM_C) || \ defined(MBEDTLS_CHACHAPOLY_C) - if( cipher_info->mode == MBEDTLS_MODE_GCM || + if (cipher_info->mode == MBEDTLS_MODE_GCM || cipher_info->mode == MBEDTLS_MODE_CCM || - cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY ) - { + cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY) { size_t explicit_ivlen; transform->maclen = 0; @@ -1108,39 +1108,35 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, */ transform->ivlen = 12; #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL) - if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_4 ) - { + if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_4) { transform->fixed_ivlen = 12; - } - else + } else #endif /* MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */ { - if( cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY ) + if (cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY) { transform->fixed_ivlen = 12; - else + } else { transform->fixed_ivlen = 4; + } } /* Minimum length of encrypted record */ explicit_ivlen = transform->ivlen - transform->fixed_ivlen; transform->minlen = explicit_ivlen + transform->taglen; - } - else + } else #endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C || MBEDTLS_CHACHAPOLY_C */ #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC) - if( cipher_info->mode == MBEDTLS_MODE_STREAM || - cipher_info->mode == MBEDTLS_MODE_CBC ) - { + if (cipher_info->mode == MBEDTLS_MODE_STREAM || + cipher_info->mode == MBEDTLS_MODE_CBC) { /* Initialize HMAC contexts */ - if( ( ret = mbedtls_md_setup( &transform->md_ctx_enc, md_info, 1 ) ) != 0 || - ( ret = mbedtls_md_setup( &transform->md_ctx_dec, md_info, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret ); + if ((ret = mbedtls_md_setup(&transform->md_ctx_enc, md_info, 1)) != 0 || + (ret = mbedtls_md_setup(&transform->md_ctx_dec, md_info, 1)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_setup", ret); goto end; } /* Get MAC length */ - mac_key_len = mbedtls_md_get_size( md_info ); + mac_key_len = mbedtls_md_get_size(md_info); transform->maclen = mac_key_len; #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) @@ -1149,8 +1145,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, * (rfc 6066 page 13 or rfc 2104 section 4), * so we only need to adjust the length here. */ - if( trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED ) - { + if (trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED) { transform->maclen = MBEDTLS_SSL_TRUNCATED_HMAC_LEN; #if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT) @@ -1166,10 +1161,9 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, transform->ivlen = cipher_info->iv_size; /* Minimum length */ - if( cipher_info->mode == MBEDTLS_MODE_STREAM ) + if (cipher_info->mode == MBEDTLS_MODE_STREAM) { transform->minlen = transform->maclen; - else - { + } else { /* * GenericBlockCipher: * 1. if EtM is in use: one block plus MAC @@ -1177,59 +1171,53 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, * 2. IV except for SSL3 and TLS 1.0 */ #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - if( encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED ) - { + if (encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED) { transform->minlen = transform->maclen - + cipher_info->block_size; - } - else + + cipher_info->block_size; + } else #endif { transform->minlen = transform->maclen - + cipher_info->block_size - - transform->maclen % cipher_info->block_size; + + cipher_info->block_size + - transform->maclen % cipher_info->block_size; } #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) - if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 || - minor_ver == MBEDTLS_SSL_MINOR_VERSION_1 ) + if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 || + minor_ver == MBEDTLS_SSL_MINOR_VERSION_1) { ; /* No need to adjust minlen */ - else + } else #endif #if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_2 || - minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { + if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_2 || + minor_ver == MBEDTLS_SSL_MINOR_VERSION_3) { transform->minlen += transform->ivlen; - } - else + } else #endif { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen")); ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR; goto end; } } - } - else + } else #endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */ { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen")); + return MBEDTLS_ERR_SSL_INTERNAL_ERROR; } - MBEDTLS_SSL_DEBUG_MSG( 3, ( "keylen: %u, minlen: %u, ivlen: %u, maclen: %u", - (unsigned) keylen, - (unsigned) transform->minlen, - (unsigned) transform->ivlen, - (unsigned) transform->maclen ) ); + MBEDTLS_SSL_DEBUG_MSG(3, ("keylen: %u, minlen: %u, ivlen: %u, maclen: %u", + (unsigned) keylen, + (unsigned) transform->minlen, + (unsigned) transform->ivlen, + (unsigned) transform->maclen)); /* * Finally setup the cipher contexts, IVs and MAC secrets. */ #if defined(MBEDTLS_SSL_CLI_C) - if( endpoint == MBEDTLS_SSL_IS_CLIENT ) - { + if (endpoint == MBEDTLS_SSL_IS_CLIENT) { key1 = keyblk + mac_key_len * 2; key2 = keyblk + mac_key_len * 2 + keylen; @@ -1239,17 +1227,15 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, /* * This is not used in TLS v1.1. */ - iv_copy_len = ( transform->fixed_ivlen ) ? - transform->fixed_ivlen : transform->ivlen; - memcpy( transform->iv_enc, key2 + keylen, iv_copy_len ); - memcpy( transform->iv_dec, key2 + keylen + iv_copy_len, - iv_copy_len ); - } - else + iv_copy_len = (transform->fixed_ivlen) ? + transform->fixed_ivlen : transform->ivlen; + memcpy(transform->iv_enc, key2 + keylen, iv_copy_len); + memcpy(transform->iv_dec, key2 + keylen + iv_copy_len, + iv_copy_len); + } else #endif /* MBEDTLS_SSL_CLI_C */ #if defined(MBEDTLS_SSL_SRV_C) - if( endpoint == MBEDTLS_SSL_IS_SERVER ) - { + if (endpoint == MBEDTLS_SSL_IS_SERVER) { key1 = keyblk + mac_key_len * 2 + keylen; key2 = keyblk + mac_key_len * 2; @@ -1259,77 +1245,70 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, /* * This is not used in TLS v1.1. */ - iv_copy_len = ( transform->fixed_ivlen ) ? - transform->fixed_ivlen : transform->ivlen; - memcpy( transform->iv_dec, key1 + keylen, iv_copy_len ); - memcpy( transform->iv_enc, key1 + keylen + iv_copy_len, - iv_copy_len ); - } - else + iv_copy_len = (transform->fixed_ivlen) ? + transform->fixed_ivlen : transform->ivlen; + memcpy(transform->iv_dec, key1 + keylen, iv_copy_len); + memcpy(transform->iv_enc, key1 + keylen + iv_copy_len, + iv_copy_len); + } else #endif /* MBEDTLS_SSL_SRV_C */ { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen")); ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR; goto end; } #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC) #if defined(MBEDTLS_SSL_PROTO_SSL3) - if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - if( mac_key_len > sizeof( transform->mac_enc ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) { + if (mac_key_len > sizeof(transform->mac_enc)) { + MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen")); ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR; goto end; } - memcpy( transform->mac_enc, mac_enc, mac_key_len ); - memcpy( transform->mac_dec, mac_dec, mac_key_len ); - } - else + memcpy(transform->mac_enc, mac_enc, mac_key_len); + memcpy(transform->mac_dec, mac_dec, mac_key_len); + } else #endif /* MBEDTLS_SSL_PROTO_SSL3 */ #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 ) - { + if (minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1) { /* For HMAC-based ciphersuites, initialize the HMAC transforms. For AEAD-based ciphersuites, there is nothing to do here. */ - if( mac_key_len != 0 ) - { - ret = mbedtls_md_hmac_starts( &transform->md_ctx_enc, - mac_enc, mac_key_len ); - if( ret != 0 ) + if (mac_key_len != 0) { + ret = mbedtls_md_hmac_starts(&transform->md_ctx_enc, + mac_enc, mac_key_len); + if (ret != 0) { goto end; - ret = mbedtls_md_hmac_starts( &transform->md_ctx_dec, - mac_dec, mac_key_len ); - if( ret != 0 ) + } + ret = mbedtls_md_hmac_starts(&transform->md_ctx_dec, + mac_dec, mac_key_len); + if (ret != 0) { goto end; + } } - } - else + } else #endif { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen")); ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR; goto end; } #endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */ #if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_init != NULL ) - { + if (mbedtls_ssl_hw_record_init != NULL) { ret = 0; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_init()" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("going for mbedtls_ssl_hw_record_init()")); - if( ( ret = mbedtls_ssl_hw_record_init( ssl, key1, key2, keylen, - transform->iv_enc, transform->iv_dec, - iv_copy_len, - mac_enc, mac_dec, - mac_key_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_init", ret ); + if ((ret = mbedtls_ssl_hw_record_init(ssl, key1, key2, keylen, + transform->iv_enc, transform->iv_dec, + iv_copy_len, + mac_enc, mac_dec, + mac_key_len)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_hw_record_init", ret); ret = MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; goto end; } @@ -1340,23 +1319,21 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, #endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */ #if defined(MBEDTLS_SSL_EXPORT_KEYS) - if( ssl->conf->f_export_keys != NULL ) - { - ssl->conf->f_export_keys( ssl->conf->p_export_keys, - master, keyblk, - mac_key_len, keylen, - iv_copy_len ); + if (ssl->conf->f_export_keys != NULL) { + ssl->conf->f_export_keys(ssl->conf->p_export_keys, + master, keyblk, + mac_key_len, keylen, + iv_copy_len); } - if( ssl->conf->f_export_keys_ext != NULL ) - { - ssl->conf->f_export_keys_ext( ssl->conf->p_export_keys, - master, keyblk, - mac_key_len, keylen, - iv_copy_len, - randbytes + 32, - randbytes, - tls_prf_get_type( tls_prf ) ); + if (ssl->conf->f_export_keys_ext != NULL) { + ssl->conf->f_export_keys_ext(ssl->conf->p_export_keys, + master, keyblk, + mac_key_len, keylen, + iv_copy_len, + randbytes + 32, + randbytes, + tls_prf_get_type(tls_prf)); } #endif @@ -1369,41 +1346,38 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, * the structure field for the IV, which the PSA-based * implementation currently doesn't. */ #if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_enc, - cipher_info, transform->taglen ); - if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup_psa", ret ); + if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_3) { + ret = mbedtls_cipher_setup_psa(&transform->cipher_ctx_enc, + cipher_info, transform->taglen); + if (ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setup_psa", ret); goto end; } - if( ret == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Successfully setup PSA-based encryption cipher context" ) ); + if (ret == 0) { + MBEDTLS_SSL_DEBUG_MSG(3, ("Successfully setup PSA-based encryption cipher context")); psa_fallthrough = 0; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to setup PSA-based cipher context for record encryption - fall through to default setup." ) ); + } else { + MBEDTLS_SSL_DEBUG_MSG(1, + ( + "Failed to setup PSA-based cipher context for record encryption - fall through to default setup.")); psa_fallthrough = 1; } - } - else + } else { psa_fallthrough = 1; + } #else psa_fallthrough = 1; #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - if( psa_fallthrough == 0 ) + if (psa_fallthrough == 0) { do_mbedtls_cipher_setup = 0; + } #endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( do_mbedtls_cipher_setup && - ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_enc, - cipher_info ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret ); + if (do_mbedtls_cipher_setup && + (ret = mbedtls_cipher_setup(&transform->cipher_ctx_enc, + cipher_info)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setup", ret); goto end; } @@ -1415,74 +1389,66 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, * the structure field for the IV, which the PSA-based * implementation currently doesn't. */ #if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { - ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_dec, - cipher_info, transform->taglen ); - if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup_psa", ret ); + if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_3) { + ret = mbedtls_cipher_setup_psa(&transform->cipher_ctx_dec, + cipher_info, transform->taglen); + if (ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setup_psa", ret); goto end; } - if( ret == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Successfully setup PSA-based decryption cipher context" ) ); + if (ret == 0) { + MBEDTLS_SSL_DEBUG_MSG(3, ("Successfully setup PSA-based decryption cipher context")); psa_fallthrough = 0; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to setup PSA-based cipher context for record decryption - fall through to default setup." ) ); + } else { + MBEDTLS_SSL_DEBUG_MSG(1, + ( + "Failed to setup PSA-based cipher context for record decryption - fall through to default setup.")); psa_fallthrough = 1; } - } - else + } else { psa_fallthrough = 1; + } #else psa_fallthrough = 1; #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ - if( psa_fallthrough == 0 ) + if (psa_fallthrough == 0) { do_mbedtls_cipher_setup = 0; + } #endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( do_mbedtls_cipher_setup && - ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_dec, - cipher_info ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret ); + if (do_mbedtls_cipher_setup && + (ret = mbedtls_cipher_setup(&transform->cipher_ctx_dec, + cipher_info)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setup", ret); goto end; } - if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_enc, key1, - cipher_info->key_bitlen, - MBEDTLS_ENCRYPT ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret ); + if ((ret = mbedtls_cipher_setkey(&transform->cipher_ctx_enc, key1, + cipher_info->key_bitlen, + MBEDTLS_ENCRYPT)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setkey", ret); goto end; } - if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_dec, key2, - cipher_info->key_bitlen, - MBEDTLS_DECRYPT ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret ); + if ((ret = mbedtls_cipher_setkey(&transform->cipher_ctx_dec, key2, + cipher_info->key_bitlen, + MBEDTLS_DECRYPT)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_setkey", ret); goto end; } #if defined(MBEDTLS_CIPHER_MODE_CBC) - if( cipher_info->mode == MBEDTLS_MODE_CBC ) - { - if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_enc, - MBEDTLS_PADDING_NONE ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret ); + if (cipher_info->mode == MBEDTLS_MODE_CBC) { + if ((ret = mbedtls_cipher_set_padding_mode(&transform->cipher_ctx_enc, + MBEDTLS_PADDING_NONE)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_set_padding_mode", ret); goto end; } - if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_dec, - MBEDTLS_PADDING_NONE ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret ); + if ((ret = mbedtls_cipher_set_padding_mode(&transform->cipher_ctx_dec, + MBEDTLS_PADDING_NONE)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_set_padding_mode", ret); goto end; } } @@ -1491,18 +1457,16 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, /* Initialize Zlib contexts */ #if defined(MBEDTLS_ZLIB_SUPPORT) - if( compression == MBEDTLS_SSL_COMPRESS_DEFLATE ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Initializing zlib states" ) ); + if (compression == MBEDTLS_SSL_COMPRESS_DEFLATE) { + MBEDTLS_SSL_DEBUG_MSG(3, ("Initializing zlib states")); - memset( &transform->ctx_deflate, 0, sizeof( transform->ctx_deflate ) ); - memset( &transform->ctx_inflate, 0, sizeof( transform->ctx_inflate ) ); + memset(&transform->ctx_deflate, 0, sizeof(transform->ctx_deflate)); + memset(&transform->ctx_inflate, 0, sizeof(transform->ctx_inflate)); - if( deflateInit( &transform->ctx_deflate, - Z_DEFAULT_COMPRESSION ) != Z_OK || - inflateInit( &transform->ctx_inflate ) != Z_OK ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to initialize compression" ) ); + if (deflateInit(&transform->ctx_deflate, + Z_DEFAULT_COMPRESSION) != Z_OK || + inflateInit(&transform->ctx_inflate) != Z_OK) { + MBEDTLS_SSL_DEBUG_MSG(1, ("Failed to initialize compression")); ret = MBEDTLS_ERR_SSL_COMPRESSION_FAILED; goto end; } @@ -1510,8 +1474,8 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform, #endif /* MBEDTLS_ZLIB_SUPPORT */ end: - mbedtls_platform_zeroize( keyblk, sizeof( keyblk ) ); - return( ret ); + mbedtls_platform_zeroize(keyblk, sizeof(keyblk)); + return ret; } /* @@ -1525,59 +1489,51 @@ end: * - the tls_prf, calc_verify and calc_finished members of handshake structure */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_set_handshake_prfs( mbedtls_ssl_handshake_params *handshake, - int minor_ver, - mbedtls_md_type_t hash ) +static int ssl_set_handshake_prfs(mbedtls_ssl_handshake_params *handshake, + int minor_ver, + mbedtls_md_type_t hash) { #if !defined(MBEDTLS_SSL_PROTO_TLS1_2) || \ - !( defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) ) + !(defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)) (void) hash; #endif #if defined(MBEDTLS_SSL_PROTO_SSL3) - if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { + if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) { handshake->tls_prf = ssl3_prf; handshake->calc_verify = ssl_calc_verify_ssl; handshake->calc_finished = ssl_calc_finished_ssl; - } - else + } else #endif #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 ) - { + if (minor_ver < MBEDTLS_SSL_MINOR_VERSION_3) { handshake->tls_prf = tls1_prf; handshake->calc_verify = ssl_calc_verify_tls; handshake->calc_finished = ssl_calc_finished_tls; - } - else + } else #endif #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) - if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 && - hash == MBEDTLS_MD_SHA384 ) - { + if (minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 && + hash == MBEDTLS_MD_SHA384) { handshake->tls_prf = tls_prf_sha384; handshake->calc_verify = ssl_calc_verify_tls_sha384; handshake->calc_finished = ssl_calc_finished_tls_sha384; - } - else + } else #endif #if defined(MBEDTLS_SHA256_C) - if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 ) - { + if (minor_ver == MBEDTLS_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 + } else #endif #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ { - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + return MBEDTLS_ERR_SSL_INTERNAL_ERROR; } - return( 0 ); + return 0; } /* @@ -1595,9 +1551,9 @@ static int ssl_set_handshake_prfs( mbedtls_ssl_handshake_params *handshake, * PSA-PSA: minor_ver, conf */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_compute_master( mbedtls_ssl_handshake_params *handshake, - unsigned char *master, - const mbedtls_ssl_context *ssl ) +static int ssl_compute_master(mbedtls_ssl_handshake_params *handshake, + unsigned char *master, + const mbedtls_ssl_context *ssl) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -1628,35 +1584,32 @@ static int ssl_compute_master( mbedtls_ssl_handshake_params *handshake, #if !defined(MBEDTLS_DEBUG_C) && \ !defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \ !(defined(MBEDTLS_USE_PSA_CRYPTO) && \ - defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)) + defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)) ssl = NULL; /* make sure we don't use it except for those cases */ (void) ssl; #endif - if( handshake->resume != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "no premaster (session resumed)" ) ); - return( 0 ); + if (handshake->resume != 0) { + MBEDTLS_SSL_DEBUG_MSG(3, ("no premaster (session resumed)")); + return 0; } #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) - if( handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED ) - { + if (handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED) { lbl = "extended master secret"; salt = session_hash; - handshake->calc_verify( ssl, session_hash, &salt_len ); + handshake->calc_verify(ssl, session_hash, &salt_len); - MBEDTLS_SSL_DEBUG_BUF( 3, "session hash for extended master secret", - session_hash, salt_len ); + MBEDTLS_SSL_DEBUG_BUF(3, "session hash for extended master secret", + session_hash, salt_len); } #endif /* MBEDTLS_SSL_EXTENDED_MS_ENABLED */ #if defined(MBEDTLS_USE_PSA_CRYPTO) && \ defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) - if( handshake->ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK && + if (handshake->ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK && ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 && - ssl_use_opaque_psk( ssl ) == 1 ) - { + ssl_use_opaque_psk(ssl) == 1) { /* Perform PSK-to-MS expansion in a single step. */ psa_status_t status; psa_algorithm_t alg; @@ -1665,89 +1618,85 @@ static int ssl_compute_master( mbedtls_ssl_handshake_params *handshake, PSA_KEY_DERIVATION_OPERATION_INIT; mbedtls_md_type_t hash_alg = handshake->ciphersuite_info->mac; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "perform PSA-based PSK-to-MS expansion" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("perform PSA-based PSK-to-MS expansion")); - psk = mbedtls_ssl_get_opaque_psk( ssl ); + psk = mbedtls_ssl_get_opaque_psk(ssl); - if( hash_alg == MBEDTLS_MD_SHA384 ) + if (hash_alg == MBEDTLS_MD_SHA384) { alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_384); - else + } else { alg = PSA_ALG_TLS12_PSK_TO_MS(PSA_ALG_SHA_256); + } - status = setup_psa_key_derivation( &derivation, psk, alg, - salt, salt_len, - (unsigned char const *) lbl, - (size_t) strlen( lbl ), - master_secret_len ); - if( status != PSA_SUCCESS ) - { - psa_key_derivation_abort( &derivation ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + status = setup_psa_key_derivation(&derivation, psk, alg, + salt, salt_len, + (unsigned char const *) lbl, + (size_t) strlen(lbl), + master_secret_len); + if (status != PSA_SUCCESS) { + psa_key_derivation_abort(&derivation); + return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; } - status = psa_key_derivation_output_bytes( &derivation, - master, - master_secret_len ); - if( status != PSA_SUCCESS ) - { - psa_key_derivation_abort( &derivation ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + status = psa_key_derivation_output_bytes(&derivation, + master, + master_secret_len); + if (status != PSA_SUCCESS) { + psa_key_derivation_abort(&derivation); + return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; } - status = psa_key_derivation_abort( &derivation ); - if( status != PSA_SUCCESS ) - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); - } - else + status = psa_key_derivation_abort(&derivation); + if (status != PSA_SUCCESS) { + return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; + } + } else #endif { - ret = handshake->tls_prf( handshake->premaster, handshake->pmslen, - lbl, salt, salt_len, - master, - master_secret_len ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret ); - return( ret ); + ret = handshake->tls_prf(handshake->premaster, handshake->pmslen, + lbl, salt, salt_len, + master, + master_secret_len); + if (ret != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "prf", ret); + return ret; } - MBEDTLS_SSL_DEBUG_BUF( 3, "premaster secret", - handshake->premaster, - handshake->pmslen ); + MBEDTLS_SSL_DEBUG_BUF(3, "premaster secret", + handshake->premaster, + handshake->pmslen); - mbedtls_platform_zeroize( handshake->premaster, - sizeof(handshake->premaster) ); + mbedtls_platform_zeroize(handshake->premaster, + sizeof(handshake->premaster)); } - return( 0 ); + return 0; } -int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_derive_keys(mbedtls_ssl_context *ssl) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; const mbedtls_ssl_ciphersuite_t * const ciphersuite_info = ssl->handshake->ciphersuite_info; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> derive keys" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> derive keys")); /* Set PRF, calc_verify and calc_finished function pointers */ - ret = ssl_set_handshake_prfs( ssl->handshake, - ssl->minor_ver, - ciphersuite_info->mac ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_set_handshake_prfs", ret ); - return( ret ); + ret = ssl_set_handshake_prfs(ssl->handshake, + ssl->minor_ver, + ciphersuite_info->mac); + if (ret != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "ssl_set_handshake_prfs", ret); + return ret; } /* Compute master secret if needed */ - ret = ssl_compute_master( ssl->handshake, - ssl->session_negotiate->master, - ssl ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_compute_master", ret ); - return( ret ); + ret = ssl_compute_master(ssl->handshake, + ssl->session_negotiate->master, + ssl); + if (ret != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "ssl_compute_master", ret); + return ret; } /* Swap the client and server random values: @@ -1755,142 +1704,139 @@ int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl ) * - key derivation wants server+client (RFC 5246 6.3) */ { unsigned char tmp[64]; - memcpy( tmp, ssl->handshake->randbytes, 64 ); - memcpy( ssl->handshake->randbytes, tmp + 32, 32 ); - memcpy( ssl->handshake->randbytes + 32, tmp, 32 ); - mbedtls_platform_zeroize( tmp, sizeof( tmp ) ); + memcpy(tmp, ssl->handshake->randbytes, 64); + memcpy(ssl->handshake->randbytes, tmp + 32, 32); + memcpy(ssl->handshake->randbytes + 32, tmp, 32); + mbedtls_platform_zeroize(tmp, sizeof(tmp)); } /* Populate transform structure */ - ret = ssl_populate_transform( ssl->transform_negotiate, - ssl->session_negotiate->ciphersuite, - ssl->session_negotiate->master, + ret = ssl_populate_transform(ssl->transform_negotiate, + ssl->session_negotiate->ciphersuite, + ssl->session_negotiate->master, #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC) #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - ssl->session_negotiate->encrypt_then_mac, + ssl->session_negotiate->encrypt_then_mac, #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */ #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - ssl->session_negotiate->trunc_hmac, + ssl->session_negotiate->trunc_hmac, #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ #endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */ #if defined(MBEDTLS_ZLIB_SUPPORT) - ssl->session_negotiate->compression, -#endif - ssl->handshake->tls_prf, - ssl->handshake->randbytes, - ssl->minor_ver, - ssl->conf->endpoint, - ssl ); - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "ssl_populate_transform", ret ); - return( ret ); + ssl->session_negotiate->compression, +#endif + ssl->handshake->tls_prf, + ssl->handshake->randbytes, + ssl->minor_ver, + ssl->conf->endpoint, + ssl); + if (ret != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "ssl_populate_transform", ret); + return ret; } /* We no longer need Server/ClientHello.random values */ - mbedtls_platform_zeroize( ssl->handshake->randbytes, - sizeof( ssl->handshake->randbytes ) ); + mbedtls_platform_zeroize(ssl->handshake->randbytes, + sizeof(ssl->handshake->randbytes)); /* Allocate compression buffer */ #if defined(MBEDTLS_ZLIB_SUPPORT) - if( ssl->session_negotiate->compression == MBEDTLS_SSL_COMPRESS_DEFLATE && - ssl->compress_buf == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Allocating compression buffer" ) ); - ssl->compress_buf = mbedtls_calloc( 1, MBEDTLS_SSL_COMPRESS_BUFFER_LEN ); - if( ssl->compress_buf == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", - MBEDTLS_SSL_COMPRESS_BUFFER_LEN ) ); - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + if (ssl->session_negotiate->compression == MBEDTLS_SSL_COMPRESS_DEFLATE && + ssl->compress_buf == NULL) { + MBEDTLS_SSL_DEBUG_MSG(3, ("Allocating compression buffer")); + ssl->compress_buf = mbedtls_calloc(1, MBEDTLS_SSL_COMPRESS_BUFFER_LEN); + if (ssl->compress_buf == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("alloc(%d bytes) failed", + MBEDTLS_SSL_COMPRESS_BUFFER_LEN)); + return MBEDTLS_ERR_SSL_ALLOC_FAILED; } } #endif - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= derive keys" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= derive keys")); - return( 0 ); + return 0; } #if defined(MBEDTLS_SSL_PROTO_SSL3) -void ssl_calc_verify_ssl( const mbedtls_ssl_context *ssl, - unsigned char *hash, - size_t *hlen ) +void ssl_calc_verify_ssl(const mbedtls_ssl_context *ssl, + unsigned char *hash, + size_t *hlen) { mbedtls_md5_context md5; mbedtls_sha1_context sha1; unsigned char pad_1[48]; unsigned char pad_2[48]; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify ssl" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc verify ssl")); - mbedtls_md5_init( &md5 ); - mbedtls_sha1_init( &sha1 ); + mbedtls_md5_init(&md5); + mbedtls_sha1_init(&sha1); - mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); - mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); + mbedtls_md5_clone(&md5, &ssl->handshake->fin_md5); + mbedtls_sha1_clone(&sha1, &ssl->handshake->fin_sha1); - memset( pad_1, 0x36, 48 ); - memset( pad_2, 0x5C, 48 ); + memset(pad_1, 0x36, 48); + memset(pad_2, 0x5C, 48); - mbedtls_md5_update_ret( &md5, ssl->session_negotiate->master, 48 ); - mbedtls_md5_update_ret( &md5, pad_1, 48 ); - mbedtls_md5_finish_ret( &md5, hash ); + mbedtls_md5_update_ret(&md5, ssl->session_negotiate->master, 48); + mbedtls_md5_update_ret(&md5, pad_1, 48); + mbedtls_md5_finish_ret(&md5, hash); - mbedtls_md5_starts_ret( &md5 ); - mbedtls_md5_update_ret( &md5, ssl->session_negotiate->master, 48 ); - mbedtls_md5_update_ret( &md5, pad_2, 48 ); - mbedtls_md5_update_ret( &md5, hash, 16 ); - mbedtls_md5_finish_ret( &md5, hash ); + mbedtls_md5_starts_ret(&md5); + mbedtls_md5_update_ret(&md5, ssl->session_negotiate->master, 48); + mbedtls_md5_update_ret(&md5, pad_2, 48); + mbedtls_md5_update_ret(&md5, hash, 16); + mbedtls_md5_finish_ret(&md5, hash); - mbedtls_sha1_update_ret( &sha1, ssl->session_negotiate->master, 48 ); - mbedtls_sha1_update_ret( &sha1, pad_1, 40 ); - mbedtls_sha1_finish_ret( &sha1, hash + 16 ); + mbedtls_sha1_update_ret(&sha1, ssl->session_negotiate->master, 48); + mbedtls_sha1_update_ret(&sha1, pad_1, 40); + mbedtls_sha1_finish_ret(&sha1, hash + 16); - mbedtls_sha1_starts_ret( &sha1 ); - mbedtls_sha1_update_ret( &sha1, ssl->session_negotiate->master, 48 ); - mbedtls_sha1_update_ret( &sha1, pad_2, 40 ); - mbedtls_sha1_update_ret( &sha1, hash + 16, 20 ); - mbedtls_sha1_finish_ret( &sha1, hash + 16 ); + mbedtls_sha1_starts_ret(&sha1); + mbedtls_sha1_update_ret(&sha1, ssl->session_negotiate->master, 48); + mbedtls_sha1_update_ret(&sha1, pad_2, 40); + mbedtls_sha1_update_ret(&sha1, hash + 16, 20); + mbedtls_sha1_finish_ret(&sha1, hash + 16); *hlen = 36; - MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, *hlen ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); + MBEDTLS_SSL_DEBUG_BUF(3, "calculated verify result", hash, *hlen); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc verify")); - mbedtls_md5_free( &md5 ); - mbedtls_sha1_free( &sha1 ); + mbedtls_md5_free(&md5); + mbedtls_sha1_free(&sha1); return; } #endif /* MBEDTLS_SSL_PROTO_SSL3 */ #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) -void ssl_calc_verify_tls( const mbedtls_ssl_context *ssl, - unsigned char *hash, - size_t *hlen ) +void ssl_calc_verify_tls(const mbedtls_ssl_context *ssl, + unsigned char *hash, + size_t *hlen) { mbedtls_md5_context md5; mbedtls_sha1_context sha1; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify tls" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc verify tls")); - mbedtls_md5_init( &md5 ); - mbedtls_sha1_init( &sha1 ); + mbedtls_md5_init(&md5); + mbedtls_sha1_init(&sha1); - mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); - mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); + mbedtls_md5_clone(&md5, &ssl->handshake->fin_md5); + mbedtls_sha1_clone(&sha1, &ssl->handshake->fin_sha1); - mbedtls_md5_finish_ret( &md5, hash ); - mbedtls_sha1_finish_ret( &sha1, hash + 16 ); + mbedtls_md5_finish_ret(&md5, hash); + mbedtls_sha1_finish_ret(&sha1, hash + 16); *hlen = 36; - MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, *hlen ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); + MBEDTLS_SSL_DEBUG_BUF(3, "calculated verify result", hash, *hlen); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc verify")); - mbedtls_md5_free( &md5 ); - mbedtls_sha1_free( &sha1 ); + mbedtls_md5_free(&md5); + mbedtls_sha1_free(&sha1); return; } @@ -1898,98 +1844,94 @@ void ssl_calc_verify_tls( const mbedtls_ssl_context *ssl, #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA256_C) -void ssl_calc_verify_tls_sha256( const mbedtls_ssl_context *ssl, - unsigned char *hash, - size_t *hlen ) +void ssl_calc_verify_tls_sha256(const mbedtls_ssl_context *ssl, + unsigned char *hash, + size_t *hlen) { #if defined(MBEDTLS_USE_PSA_CRYPTO) size_t hash_size; psa_status_t status; psa_hash_operation_t sha256_psa = psa_hash_operation_init(); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> PSA calc verify sha256" ) ); - status = psa_hash_clone( &ssl->handshake->fin_sha256_psa, &sha256_psa ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> PSA calc verify sha256")); + status = psa_hash_clone(&ssl->handshake->fin_sha256_psa, &sha256_psa); + if (status != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash clone failed")); return; } - status = psa_hash_finish( &sha256_psa, hash, 32, &hash_size ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) ); + status = psa_hash_finish(&sha256_psa, hash, 32, &hash_size); + if (status != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash finish failed")); return; } *hlen = 32; - MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated verify result", hash, *hlen ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= PSA calc verify" ) ); + MBEDTLS_SSL_DEBUG_BUF(3, "PSA calculated verify result", hash, *hlen); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= PSA calc verify")); #else mbedtls_sha256_context sha256; - mbedtls_sha256_init( &sha256 ); + mbedtls_sha256_init(&sha256); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha256" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc verify sha256")); - mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 ); - mbedtls_sha256_finish_ret( &sha256, hash ); + mbedtls_sha256_clone(&sha256, &ssl->handshake->fin_sha256); + mbedtls_sha256_finish_ret(&sha256, hash); *hlen = 32; - MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, *hlen ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); + MBEDTLS_SSL_DEBUG_BUF(3, "calculated verify result", hash, *hlen); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc verify")); - mbedtls_sha256_free( &sha256 ); + mbedtls_sha256_free(&sha256); #endif /* MBEDTLS_USE_PSA_CRYPTO */ return; } #endif /* MBEDTLS_SHA256_C */ #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) -void ssl_calc_verify_tls_sha384( const mbedtls_ssl_context *ssl, - unsigned char *hash, - size_t *hlen ) +void ssl_calc_verify_tls_sha384(const mbedtls_ssl_context *ssl, + unsigned char *hash, + size_t *hlen) { #if defined(MBEDTLS_USE_PSA_CRYPTO) size_t hash_size; psa_status_t status; psa_hash_operation_t sha384_psa = psa_hash_operation_init(); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> PSA calc verify sha384" ) ); - status = psa_hash_clone( &ssl->handshake->fin_sha384_psa, &sha384_psa ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> PSA calc verify sha384")); + status = psa_hash_clone(&ssl->handshake->fin_sha384_psa, &sha384_psa); + if (status != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash clone failed")); return; } - status = psa_hash_finish( &sha384_psa, hash, 48, &hash_size ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) ); + status = psa_hash_finish(&sha384_psa, hash, 48, &hash_size); + if (status != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash finish failed")); return; } *hlen = 48; - MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated verify result", hash, *hlen ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= PSA calc verify" ) ); + MBEDTLS_SSL_DEBUG_BUF(3, "PSA calculated verify result", hash, *hlen); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= PSA calc verify")); #else mbedtls_sha512_context sha512; - mbedtls_sha512_init( &sha512 ); + mbedtls_sha512_init(&sha512); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha384" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc verify sha384")); - mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 ); - mbedtls_sha512_finish_ret( &sha512, hash ); + mbedtls_sha512_clone(&sha512, &ssl->handshake->fin_sha512); + mbedtls_sha512_finish_ret(&sha512, hash); *hlen = 48; - MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, *hlen ); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) ); + MBEDTLS_SSL_DEBUG_BUF(3, "calculated verify result", hash, *hlen); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc verify")); - mbedtls_sha512_free( &sha512 ); + mbedtls_sha512_free(&sha512); #endif /* MBEDTLS_USE_PSA_CRYPTO */ return; } @@ -1997,22 +1939,21 @@ void ssl_calc_verify_tls_sha384( const mbedtls_ssl_context *ssl, #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) -int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex ) +int mbedtls_ssl_psk_derive_premaster(mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex) { unsigned char *p = ssl->handshake->premaster; - unsigned char *end = p + sizeof( ssl->handshake->premaster ); + unsigned char *end = p + sizeof(ssl->handshake->premaster); const unsigned char *psk = NULL; size_t psk_len = 0; - if( mbedtls_ssl_get_psk( ssl, &psk, &psk_len ) - == MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED ) - { + if (mbedtls_ssl_get_psk(ssl, &psk, &psk_len) + == MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED) { /* * This should never happen because the existence of a PSK is always * checked before calling this function */ - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen")); + return MBEDTLS_ERR_SSL_INTERNAL_ERROR; } /* @@ -2023,152 +1964,142 @@ int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exch * with "other_secret" depending on the particular key exchange */ #if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) - if( key_ex == MBEDTLS_KEY_EXCHANGE_PSK ) - { - if( end - p < 2 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (key_ex == MBEDTLS_KEY_EXCHANGE_PSK) { + if (end - p < 2) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - MBEDTLS_PUT_UINT16_BE( psk_len, p, 0 ); + MBEDTLS_PUT_UINT16_BE(psk_len, p, 0); p += 2; - if( end < p || (size_t)( end - p ) < psk_len ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (end < p || (size_t) (end - p) < psk_len) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - memset( p, 0, psk_len ); + memset(p, 0, psk_len); p += psk_len; - } - else + } else #endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) - if( key_ex == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) - { + if (key_ex == MBEDTLS_KEY_EXCHANGE_RSA_PSK) { /* * other_secret already set by the ClientKeyExchange message, * and is 48 bytes long */ - if( end - p < 2 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (end - p < 2) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } *p++ = 0; *p++ = 48; p += 48; - } - else + } else #endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) - if( key_ex == MBEDTLS_KEY_EXCHANGE_DHE_PSK ) - { + if (key_ex == MBEDTLS_KEY_EXCHANGE_DHE_PSK) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; size_t len; /* Write length only when we know the actual value */ - if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx, - p + 2, end - ( p + 2 ), &len, - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret ); - return( ret ); + if ((ret = mbedtls_dhm_calc_secret(&ssl->handshake->dhm_ctx, + p + 2, end - (p + 2), &len, + ssl->conf->f_rng, ssl->conf->p_rng)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_dhm_calc_secret", ret); + return ret; } - MBEDTLS_PUT_UINT16_BE( len, p, 0 ); + MBEDTLS_PUT_UINT16_BE(len, p, 0); p += 2 + len; - MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K ); - } - else + MBEDTLS_SSL_DEBUG_MPI(3, "DHM: K ", &ssl->handshake->dhm_ctx.K); + } else #endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) - if( key_ex == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ) - { + if (key_ex == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; size_t zlen; - if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx, &zlen, - p + 2, end - ( p + 2 ), - ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret ); - return( ret ); + if ((ret = mbedtls_ecdh_calc_secret(&ssl->handshake->ecdh_ctx, &zlen, + p + 2, end - (p + 2), + ssl->conf->f_rng, ssl->conf->p_rng)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecdh_calc_secret", ret); + return ret; } - MBEDTLS_PUT_UINT16_BE( zlen, p, 0 ); + MBEDTLS_PUT_UINT16_BE(zlen, p, 0); p += 2 + zlen; - MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, - MBEDTLS_DEBUG_ECDH_Z ); - } - else + MBEDTLS_SSL_DEBUG_ECDH(3, &ssl->handshake->ecdh_ctx, + MBEDTLS_DEBUG_ECDH_Z); + } else #endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */ { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen")); + return MBEDTLS_ERR_SSL_INTERNAL_ERROR; } /* opaque psk<0..2^16-1>; */ - if( end - p < 2 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (end - p < 2) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - MBEDTLS_PUT_UINT16_BE( psk_len, p, 0 ); + MBEDTLS_PUT_UINT16_BE(psk_len, p, 0); p += 2; - if( end < p || (size_t)( end - p ) < psk_len ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (end < p || (size_t) (end - p) < psk_len) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - memcpy( p, psk, psk_len ); + memcpy(p, psk, psk_len); p += psk_len; ssl->handshake->pmslen = p - ssl->handshake->premaster; - return( 0 ); + return 0; } #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */ #if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION) MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_write_hello_request( mbedtls_ssl_context *ssl ); +static int ssl_write_hello_request(mbedtls_ssl_context *ssl); #if defined(MBEDTLS_SSL_PROTO_DTLS) -int mbedtls_ssl_resend_hello_request( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_resend_hello_request(mbedtls_ssl_context *ssl) { /* If renegotiation is not enforced, retransmit until we would reach max * timeout if we were using the usual handshake doubling scheme */ - if( ssl->conf->renego_max_records < 0 ) - { + if (ssl->conf->renego_max_records < 0) { uint32_t ratio = ssl->conf->hs_timeout_max / ssl->conf->hs_timeout_min + 1; unsigned char doublings = 1; - while( ratio != 0 ) - { + while (ratio != 0) { ++doublings; ratio >>= 1; } - if( ++ssl->renego_records_seen > doublings ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "no longer retransmitting hello request" ) ); - return( 0 ); + if (++ssl->renego_records_seen > doublings) { + MBEDTLS_SSL_DEBUG_MSG(2, ("no longer retransmitting hello request")); + return 0; } } - return( ssl_write_hello_request( ssl ) ); + return ssl_write_hello_request(ssl); } #endif #endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */ #if defined(MBEDTLS_X509_CRT_PARSE_C) -static void ssl_clear_peer_cert( mbedtls_ssl_session *session ) +static void ssl_clear_peer_cert(mbedtls_ssl_session *session) { #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - if( session->peer_cert != NULL ) - { - mbedtls_x509_crt_free( session->peer_cert ); - mbedtls_free( session->peer_cert ); + if (session->peer_cert != NULL) { + mbedtls_x509_crt_free(session->peer_cert); + mbedtls_free(session->peer_cert); session->peer_cert = NULL; } #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( session->peer_cert_digest != NULL ) - { + if (session->peer_cert_digest != NULL) { /* Zeroization is not necessary. */ - mbedtls_free( session->peer_cert_digest ); + mbedtls_free(session->peer_cert_digest); session->peer_cert_digest = NULL; session->peer_cert_digest_type = MBEDTLS_MD_NONE; session->peer_cert_digest_len = 0; @@ -2182,46 +2113,44 @@ static void ssl_clear_peer_cert( mbedtls_ssl_session *session ) */ #if !defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) /* No certificate support -> dummy functions */ -int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_write_certificate(mbedtls_ssl_context *ssl) { const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->handshake->ciphersuite_info; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> write certificate")); - if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) ); + if (!mbedtls_ssl_ciphersuite_uses_srv_cert(ciphersuite_info)) { + MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip write certificate")); ssl->state++; - return( 0 ); + return 0; } - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen")); + return MBEDTLS_ERR_SSL_INTERNAL_ERROR; } -int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_parse_certificate(mbedtls_ssl_context *ssl) { const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->handshake->ciphersuite_info; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse certificate")); - if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) ); + if (!mbedtls_ssl_ciphersuite_uses_srv_cert(ciphersuite_info)) { + MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip parse certificate")); ssl->state++; - return( 0 ); + return 0; } - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen")); + return MBEDTLS_ERR_SSL_INTERNAL_ERROR; } #else /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ /* Some certificate support -> implement write and parse */ -int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_write_certificate(mbedtls_ssl_context *ssl) { int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; size_t i, n; @@ -2229,23 +2158,20 @@ int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ) const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->handshake->ciphersuite_info; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> write certificate")); - if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) ); + if (!mbedtls_ssl_ciphersuite_uses_srv_cert(ciphersuite_info)) { + MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip write certificate")); ssl->state++; - return( 0 ); + return 0; } #if defined(MBEDTLS_SSL_CLI_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - { - if( ssl->client_auth == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) ); + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) { + if (ssl->client_auth == 0) { + MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip write certificate")); ssl->state++; - return( 0 ); + return 0; } #if defined(MBEDTLS_SSL_PROTO_SSL3) @@ -2253,32 +2179,29 @@ int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ) * If using SSLv3 and got no cert, send an Alert message * (otherwise an empty Certificate message will be sent). */ - if( mbedtls_ssl_own_cert( ssl ) == NULL && - ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { + if (mbedtls_ssl_own_cert(ssl) == NULL && + ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) { ssl->out_msglen = 2; ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT; ssl->out_msg[0] = MBEDTLS_SSL_ALERT_LEVEL_WARNING; ssl->out_msg[1] = MBEDTLS_SSL_ALERT_MSG_NO_CERT; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "got no certificate to send" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("got no certificate to send")); goto write_msg; } #endif /* MBEDTLS_SSL_PROTO_SSL3 */ } #endif /* MBEDTLS_SSL_CLI_C */ #if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - { - if( mbedtls_ssl_own_cert( ssl ) == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no certificate to send" ) ); - return( MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED ); + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) { + if (mbedtls_ssl_own_cert(ssl) == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("got no certificate to send")); + return MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED; } } #endif - MBEDTLS_SSL_DEBUG_CRT( 3, "own certificate", mbedtls_ssl_own_cert( ssl ) ); + MBEDTLS_SSL_DEBUG_CRT(3, "own certificate", mbedtls_ssl_own_cert(ssl)); /* * 0 . 0 handshake type @@ -2290,30 +2213,28 @@ int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl ) * n+3 . ... upper level cert, etc. */ i = 7; - crt = mbedtls_ssl_own_cert( ssl ); + crt = mbedtls_ssl_own_cert(ssl); - while( crt != NULL ) - { + while (crt != NULL) { n = crt->raw.len; - if( n > MBEDTLS_SSL_OUT_CONTENT_LEN - 3 - i ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate too large, %" MBEDTLS_PRINTF_SIZET - " > %" MBEDTLS_PRINTF_SIZET, - i + 3 + n, (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN ) ); - return( MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE ); + if (n > MBEDTLS_SSL_OUT_CONTENT_LEN - 3 - i) { + MBEDTLS_SSL_DEBUG_MSG(1, ("certificate too large, %" MBEDTLS_PRINTF_SIZET + " > %" MBEDTLS_PRINTF_SIZET, + i + 3 + n, (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN)); + return MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE; } - ssl->out_msg[i ] = MBEDTLS_BYTE_2( n ); - ssl->out_msg[i + 1] = MBEDTLS_BYTE_1( n ); - ssl->out_msg[i + 2] = MBEDTLS_BYTE_0( n ); + ssl->out_msg[i] = MBEDTLS_BYTE_2(n); + ssl->out_msg[i + 1] = MBEDTLS_BYTE_1(n); + ssl->out_msg[i + 2] = MBEDTLS_BYTE_0(n); - i += 3; memcpy( ssl->out_msg + i, crt->raw.p, n ); + i += 3; memcpy(ssl->out_msg + i, crt->raw.p, n); i += n; crt = crt->next; } - ssl->out_msg[4] = MBEDTLS_BYTE_2( i - 7 ); - ssl->out_msg[5] = MBEDTLS_BYTE_1( i - 7 ); - ssl->out_msg[6] = MBEDTLS_BYTE_0( i - 7 ); + ssl->out_msg[4] = MBEDTLS_BYTE_2(i - 7); + ssl->out_msg[5] = MBEDTLS_BYTE_1(i - 7); + ssl->out_msg[6] = MBEDTLS_BYTE_0(i - 7); ssl->out_msglen = i; ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; @@ -2325,40 +2246,41 @@ write_msg: ssl->state++; - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); + if ((ret = mbedtls_ssl_write_handshake_msg(ssl)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_handshake_msg", ret); + return ret; } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= write certificate")); - return( ret ); + return ret; } #if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C) #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl, - unsigned char *crt_buf, - size_t crt_buf_len ) +static int ssl_check_peer_crt_unchanged(mbedtls_ssl_context *ssl, + unsigned char *crt_buf, + size_t crt_buf_len) { mbedtls_x509_crt const * const peer_crt = ssl->session->peer_cert; - if( peer_crt == NULL ) - return( -1 ); + if (peer_crt == NULL) { + return -1; + } - if( peer_crt->raw.len != crt_buf_len ) - return( -1 ); + if (peer_crt->raw.len != crt_buf_len) { + return -1; + } - return( memcmp( peer_crt->raw.p, crt_buf, peer_crt->raw.len ) ); + return memcmp(peer_crt->raw.p, crt_buf, peer_crt->raw.len); } #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl, - unsigned char *crt_buf, - size_t crt_buf_len ) +static int ssl_check_peer_crt_unchanged(mbedtls_ssl_context *ssl, + unsigned char *crt_buf, + size_t crt_buf_len) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; unsigned char const * const peer_cert_digest = @@ -2366,22 +2288,25 @@ static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl, mbedtls_md_type_t const peer_cert_digest_type = ssl->session->peer_cert_digest_type; mbedtls_md_info_t const * const digest_info = - mbedtls_md_info_from_type( peer_cert_digest_type ); + mbedtls_md_info_from_type(peer_cert_digest_type); unsigned char tmp_digest[MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN]; size_t digest_len; - if( peer_cert_digest == NULL || digest_info == NULL ) - return( -1 ); + if (peer_cert_digest == NULL || digest_info == NULL) { + return -1; + } - digest_len = mbedtls_md_get_size( digest_info ); - if( digest_len > MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN ) - return( -1 ); + digest_len = mbedtls_md_get_size(digest_info); + if (digest_len > MBEDTLS_SSL_PEER_CERT_DIGEST_MAX_LEN) { + return -1; + } - ret = mbedtls_md( digest_info, crt_buf, crt_buf_len, tmp_digest ); - if( ret != 0 ) - return( -1 ); + ret = mbedtls_md(digest_info, crt_buf, crt_buf_len, tmp_digest); + if (ret != 0) { + return -1; + } - return( memcmp( tmp_digest, peer_cert_digest, digest_len ) ); + return memcmp(tmp_digest, peer_cert_digest, digest_len); } #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ #endif /* MBEDTLS_SSL_RENEGOTIATION && MBEDTLS_SSL_CLI_C */ @@ -2391,125 +2316,116 @@ static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl, * perform basic checks, but leave actual verification to the caller */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl, - mbedtls_x509_crt *chain ) +static int ssl_parse_certificate_chain(mbedtls_ssl_context *ssl, + mbedtls_x509_crt *chain) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; #if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C) - int crt_cnt=0; + int crt_cnt = 0; #endif size_t i, n; uint8_t alert; - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); - return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE ); + if (ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE) { + MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message")); + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE); + return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE; } - if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE || - ssl->in_hslen < mbedtls_ssl_hs_hdr_len( ssl ) + 3 + 3 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + if (ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE || + ssl->in_hslen < mbedtls_ssl_hs_hdr_len(ssl) + 3 + 3) { + MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message")); + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR); + return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; } - i = mbedtls_ssl_hs_hdr_len( ssl ); + i = mbedtls_ssl_hs_hdr_len(ssl); /* * Same message structure as in mbedtls_ssl_write_certificate() */ - n = ( ssl->in_msg[i+1] << 8 ) | ssl->in_msg[i+2]; + n = (ssl->in_msg[i+1] << 8) | ssl->in_msg[i+2]; - if( ssl->in_msg[i] != 0 || - ssl->in_hslen != n + 3 + mbedtls_ssl_hs_hdr_len( ssl ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + if (ssl->in_msg[i] != 0 || + ssl->in_hslen != n + 3 + mbedtls_ssl_hs_hdr_len(ssl)) { + MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message")); + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR); + return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; } /* Make &ssl->in_msg[i] point to the beginning of the CRT chain. */ i += 3; /* Iterate through and parse the CRTs in the provided chain. */ - while( i < ssl->in_hslen ) - { + while (i < ssl->in_hslen) { /* Check that there's room for the next CRT's length fields. */ - if ( i + 3 > ssl->in_hslen ) { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + if (i + 3 > ssl->in_hslen) { + MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message")); + mbedtls_ssl_send_alert_message(ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR); + return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; } /* In theory, the CRT can be up to 2**24 Bytes, but we don't support * anything beyond 2**16 ~ 64K. */ - if( ssl->in_msg[i] != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + if (ssl->in_msg[i] != 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message")); + mbedtls_ssl_send_alert_message(ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR); + return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; } /* Read length of the next CRT in the chain. */ - n = ( (unsigned int) ssl->in_msg[i + 1] << 8 ) + n = ((unsigned int) ssl->in_msg[i + 1] << 8) | (unsigned int) ssl->in_msg[i + 2]; i += 3; - if( n < 128 || i + n > ssl->in_hslen ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + if (n < 128 || i + n > ssl->in_hslen) { + MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate message")); + mbedtls_ssl_send_alert_message(ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR); + return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; } /* Check if we're handling the first CRT in the chain. */ #if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C) - if( crt_cnt++ == 0 && + if (crt_cnt++ == 0 && ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT && - ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - { + ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS) { /* During client-side renegotiation, check that the server's * end-CRTs hasn't changed compared to the initial handshake, * mitigating the triple handshake attack. On success, reuse * the original end-CRT instead of parsing it again. */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Check that peer CRT hasn't changed during renegotiation" ) ); - if( ssl_check_peer_crt_unchanged( ssl, - &ssl->in_msg[i], - n ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "new server cert during renegotiation" ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED ); - return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ); + MBEDTLS_SSL_DEBUG_MSG(3, ("Check that peer CRT hasn't changed during renegotiation")); + if (ssl_check_peer_crt_unchanged(ssl, + &ssl->in_msg[i], + n) != 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("new server cert during renegotiation")); + mbedtls_ssl_send_alert_message(ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED); + return MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; } /* Now we can safely free the original chain. */ - ssl_clear_peer_cert( ssl->session ); + ssl_clear_peer_cert(ssl->session); } #endif /* MBEDTLS_SSL_RENEGOTIATION && MBEDTLS_SSL_CLI_C */ /* Parse the next certificate in the chain. */ #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - ret = mbedtls_x509_crt_parse_der( chain, ssl->in_msg + i, n ); + ret = mbedtls_x509_crt_parse_der(chain, ssl->in_msg + i, n); #else /* If we don't need to store the CRT chain permanently, parse * it in-place from the input buffer instead of making a copy. */ - ret = mbedtls_x509_crt_parse_der_nocopy( chain, ssl->in_msg + i, n ); + ret = mbedtls_x509_crt_parse_der_nocopy(chain, ssl->in_msg + i, n); #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - switch( ret ) - { + switch (ret) { case 0: /*ok*/ case MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG + MBEDTLS_ERR_OID_NOT_FOUND: /* Ignore certificate with an unknown algorithm: maybe a @@ -2526,57 +2442,55 @@ static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl, default: alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT; - crt_parse_der_failed: - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, alert ); - MBEDTLS_SSL_DEBUG_RET( 1, " mbedtls_x509_crt_parse_der", ret ); - return( ret ); +crt_parse_der_failed: + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, alert); + MBEDTLS_SSL_DEBUG_RET(1, " mbedtls_x509_crt_parse_der", ret); + return ret; } i += n; } - MBEDTLS_SSL_DEBUG_CRT( 3, "peer certificate", chain ); - return( 0 ); + MBEDTLS_SSL_DEBUG_CRT(3, "peer certificate", chain); + return 0; } #if defined(MBEDTLS_SSL_SRV_C) MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl ) +static int ssl_srv_check_client_no_crt_notification(mbedtls_ssl_context *ssl) { - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - return( -1 ); + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) { + return -1; + } #if defined(MBEDTLS_SSL_PROTO_SSL3) /* * Check if the client sent an empty certificate */ - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) - { - if( ssl->in_msglen == 2 && + if (ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) { + if (ssl->in_msglen == 2 && ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT && ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING && - ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_CERT ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "SSLv3 client has no certificate" ) ); - return( 0 ); + ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_CERT) { + MBEDTLS_SSL_DEBUG_MSG(1, ("SSLv3 client has no certificate")); + return 0; } - return( -1 ); + return -1; } #endif /* MBEDTLS_SSL_PROTO_SSL3 */ #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \ defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->in_hslen == 3 + mbedtls_ssl_hs_hdr_len( ssl ) && + if (ssl->in_hslen == 3 + mbedtls_ssl_hs_hdr_len(ssl) && ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE && ssl->in_msg[0] == MBEDTLS_SSL_HS_CERTIFICATE && - memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ), "\0\0\0", 3 ) == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLSv1 client has no certificate" ) ); - return( 0 ); + memcmp(ssl->in_msg + mbedtls_ssl_hs_hdr_len(ssl), "\0\0\0", 3) == 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("TLSv1 client has no certificate")); + return 0; } - return( -1 ); + return -1; #endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \ MBEDTLS_SSL_PROTO_TLS1_2 */ } @@ -2591,40 +2505,40 @@ static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl ) #define SSL_CERTIFICATE_EXPECTED 0 #define SSL_CERTIFICATE_SKIP 1 MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_parse_certificate_coordinate( mbedtls_ssl_context *ssl, - int authmode ) +static int ssl_parse_certificate_coordinate(mbedtls_ssl_context *ssl, + int authmode) { const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->handshake->ciphersuite_info; - if( !mbedtls_ssl_ciphersuite_uses_srv_cert( ciphersuite_info ) ) - return( SSL_CERTIFICATE_SKIP ); + if (!mbedtls_ssl_ciphersuite_uses_srv_cert(ciphersuite_info)) { + return SSL_CERTIFICATE_SKIP; + } #if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - { - if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ) - return( SSL_CERTIFICATE_SKIP ); + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) { + if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK) { + return SSL_CERTIFICATE_SKIP; + } - if( authmode == MBEDTLS_SSL_VERIFY_NONE ) - { + if (authmode == MBEDTLS_SSL_VERIFY_NONE) { ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_SKIP_VERIFY; - return( SSL_CERTIFICATE_SKIP ); + return SSL_CERTIFICATE_SKIP; } } #else ((void) authmode); #endif /* MBEDTLS_SSL_SRV_C */ - return( SSL_CERTIFICATE_EXPECTED ); + return SSL_CERTIFICATE_EXPECTED; } MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, - int authmode, - mbedtls_x509_crt *chain, - void *rs_ctx ) +static int ssl_parse_certificate_verify(mbedtls_ssl_context *ssl, + int authmode, + mbedtls_x509_crt *chain, + void *rs_ctx) { int ret = 0; const mbedtls_ssl_ciphersuite_t *ciphersuite_info = @@ -2634,18 +2548,16 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *); void *p_vrfy; - if( authmode == MBEDTLS_SSL_VERIFY_NONE ) - return( 0 ); + if (authmode == MBEDTLS_SSL_VERIFY_NONE) { + return 0; + } - if( ssl->f_vrfy != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Use context-specific verification callback" ) ); + if (ssl->f_vrfy != NULL) { + MBEDTLS_SSL_DEBUG_MSG(3, ("Use context-specific verification callback")); f_vrfy = ssl->f_vrfy; p_vrfy = ssl->p_vrfy; - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Use configuration-specific verification callback" ) ); + } else { + MBEDTLS_SSL_DEBUG_MSG(3, ("Use configuration-specific verification callback")); f_vrfy = ssl->conf->f_vrfy; p_vrfy = ssl->conf->p_vrfy; } @@ -2654,12 +2566,11 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, * Main check: verify certificate */ #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) - if( ssl->conf->f_ca_cb != NULL ) - { + if (ssl->conf->f_ca_cb != NULL) { ((void) rs_ctx); have_ca_chain = 1; - MBEDTLS_SSL_DEBUG_MSG( 3, ( "use CA callback for X.509 CRT verification" ) ); + MBEDTLS_SSL_DEBUG_MSG(3, ("use CA callback for X.509 CRT verification")); ret = mbedtls_x509_crt_verify_with_ca_cb( chain, ssl->conf->f_ca_cb, @@ -2667,29 +2578,27 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, ssl->conf->cert_profile, ssl->hostname, &ssl->session_negotiate->verify_result, - f_vrfy, p_vrfy ); - } - else + f_vrfy, p_vrfy); + } else #endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */ { mbedtls_x509_crt *ca_chain; mbedtls_x509_crl *ca_crl; #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) - if( ssl->handshake->sni_ca_chain != NULL ) - { + if (ssl->handshake->sni_ca_chain != NULL) { ca_chain = ssl->handshake->sni_ca_chain; ca_crl = ssl->handshake->sni_ca_crl; - } - else + } else #endif { ca_chain = ssl->conf->ca_chain; ca_crl = ssl->conf->ca_crl; } - if( ca_chain != NULL ) + if (ca_chain != NULL) { have_ca_chain = 1; + } ret = mbedtls_x509_crt_verify_restartable( chain, @@ -2697,17 +2606,17 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, ssl->conf->cert_profile, ssl->hostname, &ssl->session_negotiate->verify_result, - f_vrfy, p_vrfy, rs_ctx ); + f_vrfy, p_vrfy, rs_ctx); } - if( ret != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "x509_verify_cert", ret ); + if (ret != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "x509_verify_cert", ret); } #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED) - if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - return( MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS ); + if (ret == MBEDTLS_ERR_ECP_IN_PROGRESS) { + return MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS; + } #endif /* @@ -2721,26 +2630,26 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, /* If certificate uses an EC key, make sure the curve is OK. * This is a public key, so it can't be opaque, so can_do() is a good * enough check to ensure pk_ec() is safe to use here. */ - if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) && - mbedtls_ssl_check_curve( ssl, mbedtls_pk_ec( *pk )->grp.id ) != 0 ) - { + if (mbedtls_pk_can_do(pk, MBEDTLS_PK_ECKEY) && + mbedtls_ssl_check_curve(ssl, mbedtls_pk_ec(*pk)->grp.id) != 0) { ssl->session_negotiate->verify_result |= MBEDTLS_X509_BADCERT_BAD_KEY; - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (EC key curve)" ) ); - if( ret == 0 ) + MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate (EC key curve)")); + if (ret == 0) { ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; + } } } #endif /* MBEDTLS_ECP_C */ - if( mbedtls_ssl_check_cert_usage( chain, - ciphersuite_info, - ! ssl->conf->endpoint, - &ssl->session_negotiate->verify_result ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (usage extensions)" ) ); - if( ret == 0 ) + if (mbedtls_ssl_check_cert_usage(chain, + ciphersuite_info, + !ssl->conf->endpoint, + &ssl->session_negotiate->verify_result) != 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate (usage extensions)")); + if (ret == 0) { ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE; + } } /* mbedtls_x509_crt_verify_with_profile is supposed to report a @@ -2749,122 +2658,115 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl, * of error codes, including those from the user provided f_vrfy * functions, are treated as fatal and lead to a failure of * ssl_parse_certificate even if verification was optional. */ - if( authmode == MBEDTLS_SSL_VERIFY_OPTIONAL && - ( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED || - ret == MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ) ) - { + if (authmode == MBEDTLS_SSL_VERIFY_OPTIONAL && + (ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED || + ret == MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE)) { ret = 0; } - if( have_ca_chain == 0 && authmode == MBEDTLS_SSL_VERIFY_REQUIRED ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no CA chain" ) ); + if (have_ca_chain == 0 && authmode == MBEDTLS_SSL_VERIFY_REQUIRED) { + MBEDTLS_SSL_DEBUG_MSG(1, ("got no CA chain")); ret = MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED; } - if( ret != 0 ) - { + if (ret != 0) { uint8_t alert; /* The certificate may have been rejected for several reasons. Pick one and send the corresponding alert. Which alert to send may be a subject of debate in some cases. */ - if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_OTHER ) + if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_OTHER) { alert = MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_CN_MISMATCH ) + } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_CN_MISMATCH) { alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_KEY_USAGE ) + } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_KEY_USAGE) { alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXT_KEY_USAGE ) + } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXT_KEY_USAGE) { alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NS_CERT_TYPE ) + } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NS_CERT_TYPE) { alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_PK ) + } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_PK) { alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_KEY ) + } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_KEY) { alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXPIRED ) + } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXPIRED) { alert = MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_REVOKED ) + } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_REVOKED) { alert = MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED; - else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NOT_TRUSTED ) + } else if (ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NOT_TRUSTED) { alert = MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA; - else + } else { alert = MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN; - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - alert ); + } + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + alert); } #if defined(MBEDTLS_DEBUG_C) - if( ssl->session_negotiate->verify_result != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "! Certificate verification flags %08x", - (unsigned int) ssl->session_negotiate->verify_result ) ); - } - else - { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Certificate verification flags clear" ) ); + if (ssl->session_negotiate->verify_result != 0) { + MBEDTLS_SSL_DEBUG_MSG(3, ("! Certificate verification flags %08x", + (unsigned int) ssl->session_negotiate->verify_result)); + } else { + MBEDTLS_SSL_DEBUG_MSG(3, ("Certificate verification flags clear")); } #endif /* MBEDTLS_DEBUG_C */ - return( ret ); + return ret; } #if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_remember_peer_crt_digest( mbedtls_ssl_context *ssl, - unsigned char *start, size_t len ) +static int ssl_remember_peer_crt_digest(mbedtls_ssl_context *ssl, + unsigned char *start, size_t len) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; /* Remember digest of the peer's end-CRT. */ ssl->session_negotiate->peer_cert_digest = - mbedtls_calloc( 1, MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN ); - if( ssl->session_negotiate->peer_cert_digest == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", - MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); + mbedtls_calloc(1, MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN); + if (ssl->session_negotiate->peer_cert_digest == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("alloc(%d bytes) failed", + MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN)); + mbedtls_ssl_send_alert_message(ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR); - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + return MBEDTLS_ERR_SSL_ALLOC_FAILED; } - ret = mbedtls_md( mbedtls_md_info_from_type( - MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE ), - start, len, - ssl->session_negotiate->peer_cert_digest ); + ret = mbedtls_md(mbedtls_md_info_from_type( + MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE), + start, len, + ssl->session_negotiate->peer_cert_digest); ssl->session_negotiate->peer_cert_digest_type = MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_TYPE; ssl->session_negotiate->peer_cert_digest_len = MBEDTLS_SSL_PEER_CERT_DIGEST_DFL_LEN; - return( ret ); + return ret; } MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_remember_peer_pubkey( mbedtls_ssl_context *ssl, - unsigned char *start, size_t len ) +static int ssl_remember_peer_pubkey(mbedtls_ssl_context *ssl, + unsigned char *start, size_t len) { unsigned char *end = start + len; int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; /* Make a copy of the peer's raw public key. */ - mbedtls_pk_init( &ssl->handshake->peer_pubkey ); - ret = mbedtls_pk_parse_subpubkey( &start, end, - &ssl->handshake->peer_pubkey ); - if( ret != 0 ) - { + mbedtls_pk_init(&ssl->handshake->peer_pubkey); + ret = mbedtls_pk_parse_subpubkey(&start, end, + &ssl->handshake->peer_pubkey); + if (ret != 0) { /* We should have parsed the public key before. */ - return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); + return MBEDTLS_ERR_SSL_INTERNAL_ERROR; } - return( 0 ); + return 0; } #endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ -int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_parse_certificate(mbedtls_ssl_context *ssl) { int ret = 0; int crt_expected; @@ -2878,40 +2780,37 @@ int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl ) void *rs_ctx = NULL; mbedtls_x509_crt *chain = NULL; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse certificate")); - crt_expected = ssl_parse_certificate_coordinate( ssl, authmode ); - if( crt_expected == SSL_CERTIFICATE_SKIP ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) ); + crt_expected = ssl_parse_certificate_coordinate(ssl, authmode); + if (crt_expected == SSL_CERTIFICATE_SKIP) { + MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip parse certificate")); goto exit; } #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED) - if( ssl->handshake->ecrs_enabled && - ssl->handshake->ecrs_state == ssl_ecrs_crt_verify ) - { + if (ssl->handshake->ecrs_enabled && + ssl->handshake->ecrs_state == ssl_ecrs_crt_verify) { chain = ssl->handshake->ecrs_peer_cert; ssl->handshake->ecrs_peer_cert = NULL; goto crt_verify; } #endif - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { + if ((ret = mbedtls_ssl_read_record(ssl, 1)) != 0) { /* mbedtls_ssl_read_record may have sent an alert already. We let it decide whether to alert. */ - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_read_record", ret); goto exit; } #if defined(MBEDTLS_SSL_SRV_C) - if( ssl_srv_check_client_no_crt_notification( ssl ) == 0 ) - { + if (ssl_srv_check_client_no_crt_notification(ssl) == 0) { ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_MISSING; - if( authmode != MBEDTLS_SSL_VERIFY_OPTIONAL ) + if (authmode != MBEDTLS_SSL_VERIFY_OPTIONAL) { ret = MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE; + } goto exit; } @@ -2919,39 +2818,42 @@ int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl ) /* Clear existing peer CRT structure in case we tried to * reuse a session but it failed, and allocate a new one. */ - ssl_clear_peer_cert( ssl->session_negotiate ); + ssl_clear_peer_cert(ssl->session_negotiate); - chain = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ); - if( chain == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", - sizeof( mbedtls_x509_crt ) ) ); - mbedtls_ssl_send_alert_message( ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); + chain = mbedtls_calloc(1, sizeof(mbedtls_x509_crt)); + if (chain == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", + sizeof(mbedtls_x509_crt))); + mbedtls_ssl_send_alert_message(ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR); ret = MBEDTLS_ERR_SSL_ALLOC_FAILED; goto exit; } - mbedtls_x509_crt_init( chain ); + mbedtls_x509_crt_init(chain); - ret = ssl_parse_certificate_chain( ssl, chain ); - if( ret != 0 ) + ret = ssl_parse_certificate_chain(ssl, chain); + if (ret != 0) { goto exit; + } #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED) - if( ssl->handshake->ecrs_enabled) + if (ssl->handshake->ecrs_enabled) { ssl->handshake->ecrs_state = ssl_ecrs_crt_verify; + } crt_verify: - if( ssl->handshake->ecrs_enabled) + if (ssl->handshake->ecrs_enabled) { rs_ctx = &ssl->handshake->ecrs_ctx; + } #endif - ret = ssl_parse_certificate_verify( ssl, authmode, - chain, rs_ctx ); - if( ret != 0 ) + ret = ssl_parse_certificate_verify(ssl, authmode, + chain, rs_ctx); + if (ret != 0) { goto exit; + } #if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) { @@ -2971,17 +2873,19 @@ crt_verify: /* Free the CRT structures before computing * digest and copying the peer's public key. */ - mbedtls_x509_crt_free( chain ); - mbedtls_free( chain ); + mbedtls_x509_crt_free(chain); + mbedtls_free(chain); chain = NULL; - ret = ssl_remember_peer_crt_digest( ssl, crt_start, crt_len ); - if( ret != 0 ) + ret = ssl_remember_peer_crt_digest(ssl, crt_start, crt_len); + if (ret != 0) { goto exit; + } - ret = ssl_remember_peer_pubkey( ssl, pk_start, pk_len ); - if( ret != 0 ) + ret = ssl_remember_peer_pubkey(ssl, pk_start, pk_len); + if (ret != 0) { goto exit; + } } #else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ /* Pass ownership to session structure. */ @@ -2989,108 +2893,107 @@ crt_verify: chain = NULL; #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= parse certificate")); exit: - if( ret == 0 ) + if (ret == 0) { ssl->state++; + } #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED) - if( ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS ) - { + if (ret == MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) { ssl->handshake->ecrs_peer_cert = chain; chain = NULL; } #endif - if( chain != NULL ) - { - mbedtls_x509_crt_free( chain ); - mbedtls_free( chain ); + if (chain != NULL) { + mbedtls_x509_crt_free(chain); + mbedtls_free(chain); } - return( ret ); + return ret; } #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ -void mbedtls_ssl_optimize_checksum( mbedtls_ssl_context *ssl, - const mbedtls_ssl_ciphersuite_t *ciphersuite_info ) +void mbedtls_ssl_optimize_checksum(mbedtls_ssl_context *ssl, + const mbedtls_ssl_ciphersuite_t *ciphersuite_info) { ((void) ciphersuite_info); #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ defined(MBEDTLS_SSL_PROTO_TLS1_1) - if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 ) + if (ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3) { ssl->handshake->update_checksum = ssl_update_checksum_md5sha1; - else + } else #endif #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) - if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 ) + if (ciphersuite_info->mac == MBEDTLS_MD_SHA384) { ssl->handshake->update_checksum = ssl_update_checksum_sha384; - else + } else #endif #if defined(MBEDTLS_SHA256_C) - if( ciphersuite_info->mac != MBEDTLS_MD_SHA384 ) + if (ciphersuite_info->mac != MBEDTLS_MD_SHA384) { ssl->handshake->update_checksum = ssl_update_checksum_sha256; - else + } else #endif #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); + MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen")); return; } } -void mbedtls_ssl_reset_checksum( mbedtls_ssl_context *ssl ) +void mbedtls_ssl_reset_checksum(mbedtls_ssl_context *ssl) { #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ defined(MBEDTLS_SSL_PROTO_TLS1_1) - mbedtls_md5_starts_ret( &ssl->handshake->fin_md5 ); - mbedtls_sha1_starts_ret( &ssl->handshake->fin_sha1 ); + mbedtls_md5_starts_ret(&ssl->handshake->fin_md5); + mbedtls_sha1_starts_ret(&ssl->handshake->fin_sha1); #endif #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA256_C) #if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_abort( &ssl->handshake->fin_sha256_psa ); - psa_hash_setup( &ssl->handshake->fin_sha256_psa, PSA_ALG_SHA_256 ); + psa_hash_abort(&ssl->handshake->fin_sha256_psa); + psa_hash_setup(&ssl->handshake->fin_sha256_psa, PSA_ALG_SHA_256); #else - mbedtls_sha256_starts_ret( &ssl->handshake->fin_sha256, 0 ); + mbedtls_sha256_starts_ret(&ssl->handshake->fin_sha256, 0); #endif #endif #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) #if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_abort( &ssl->handshake->fin_sha384_psa ); - psa_hash_setup( &ssl->handshake->fin_sha384_psa, PSA_ALG_SHA_384 ); + psa_hash_abort(&ssl->handshake->fin_sha384_psa); + psa_hash_setup(&ssl->handshake->fin_sha384_psa, PSA_ALG_SHA_384); #else - mbedtls_sha512_starts_ret( &ssl->handshake->fin_sha512, 1 ); + mbedtls_sha512_starts_ret(&ssl->handshake->fin_sha512, 1); #endif #endif #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ } -static void ssl_update_checksum_start( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) +static void ssl_update_checksum_start(mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len) { #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ defined(MBEDTLS_SSL_PROTO_TLS1_1) - mbedtls_md5_update_ret( &ssl->handshake->fin_md5 , buf, len ); - mbedtls_sha1_update_ret( &ssl->handshake->fin_sha1, buf, len ); + mbedtls_md5_update_ret(&ssl->handshake->fin_md5, buf, len); + mbedtls_sha1_update_ret(&ssl->handshake->fin_sha1, buf, len); #endif #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA256_C) #if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_update( &ssl->handshake->fin_sha256_psa, buf, len ); + psa_hash_update(&ssl->handshake->fin_sha256_psa, buf, len); #else - mbedtls_sha256_update_ret( &ssl->handshake->fin_sha256, buf, len ); + mbedtls_sha256_update_ret(&ssl->handshake->fin_sha256, buf, len); #endif #endif #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) #if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_update( &ssl->handshake->fin_sha384_psa, buf, len ); + psa_hash_update(&ssl->handshake->fin_sha384_psa, buf, len); #else - mbedtls_sha512_update_ret( &ssl->handshake->fin_sha512, buf, len ); + mbedtls_sha512_update_ret(&ssl->handshake->fin_sha512, buf, len); #endif #endif #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ @@ -3098,35 +3001,35 @@ static void ssl_update_checksum_start( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ defined(MBEDTLS_SSL_PROTO_TLS1_1) -static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) +static void ssl_update_checksum_md5sha1(mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len) { - mbedtls_md5_update_ret( &ssl->handshake->fin_md5 , buf, len ); - mbedtls_sha1_update_ret( &ssl->handshake->fin_sha1, buf, len ); + mbedtls_md5_update_ret(&ssl->handshake->fin_md5, buf, len); + mbedtls_sha1_update_ret(&ssl->handshake->fin_sha1, buf, len); } #endif #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA256_C) -static void ssl_update_checksum_sha256( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) +static void ssl_update_checksum_sha256(mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len) { #if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_update( &ssl->handshake->fin_sha256_psa, buf, len ); + psa_hash_update(&ssl->handshake->fin_sha256_psa, buf, len); #else - mbedtls_sha256_update_ret( &ssl->handshake->fin_sha256, buf, len ); + mbedtls_sha256_update_ret(&ssl->handshake->fin_sha256, buf, len); #endif } #endif #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) -static void ssl_update_checksum_sha384( mbedtls_ssl_context *ssl, - const unsigned char *buf, size_t len ) +static void ssl_update_checksum_sha384(mbedtls_ssl_context *ssl, + const unsigned char *buf, size_t len) { #if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_update( &ssl->handshake->fin_sha384_psa, buf, len ); + psa_hash_update(&ssl->handshake->fin_sha384_psa, buf, len); #else - mbedtls_sha512_update_ret( &ssl->handshake->fin_sha512, buf, len ); + mbedtls_sha512_update_ret(&ssl->handshake->fin_sha512, buf, len); #endif } #endif @@ -3134,7 +3037,7 @@ static void ssl_update_checksum_sha384( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_SSL_PROTO_SSL3) static void ssl_calc_finished_ssl( - mbedtls_ssl_context *ssl, unsigned char *buf, int from ) + mbedtls_ssl_context *ssl, unsigned char *buf, int from) { const char *sender; mbedtls_md5_context md5; @@ -3145,16 +3048,17 @@ static void ssl_calc_finished_ssl( unsigned char sha1sum[20]; mbedtls_ssl_session *session = ssl->session_negotiate; - if( !session ) + if (!session) { session = ssl->session; + } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished ssl" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc finished ssl")); - mbedtls_md5_init( &md5 ); - mbedtls_sha1_init( &sha1 ); + mbedtls_md5_init(&md5); + mbedtls_sha1_init(&sha1); - mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); - mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); + mbedtls_md5_clone(&md5, &ssl->handshake->fin_md5); + mbedtls_sha1_clone(&sha1, &ssl->handshake->fin_sha1); /* * SSLv3: @@ -3166,60 +3070,60 @@ static void ssl_calc_finished_ssl( */ #if !defined(MBEDTLS_MD5_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished md5 state", (unsigned char *) - md5.state, sizeof( md5.state ) ); + MBEDTLS_SSL_DEBUG_BUF(4, "finished md5 state", (unsigned char *) + md5.state, sizeof(md5.state)); #endif #if !defined(MBEDTLS_SHA1_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *) - sha1.state, sizeof( sha1.state ) ); + MBEDTLS_SSL_DEBUG_BUF(4, "finished sha1 state", (unsigned char *) + sha1.state, sizeof(sha1.state)); #endif - sender = ( from == MBEDTLS_SSL_IS_CLIENT ) ? "CLNT" + sender = (from == MBEDTLS_SSL_IS_CLIENT) ? "CLNT" : "SRVR"; - memset( padbuf, 0x36, 48 ); + memset(padbuf, 0x36, 48); - mbedtls_md5_update_ret( &md5, (const unsigned char *) sender, 4 ); - mbedtls_md5_update_ret( &md5, session->master, 48 ); - mbedtls_md5_update_ret( &md5, padbuf, 48 ); - mbedtls_md5_finish_ret( &md5, md5sum ); + mbedtls_md5_update_ret(&md5, (const unsigned char *) sender, 4); + mbedtls_md5_update_ret(&md5, session->master, 48); + mbedtls_md5_update_ret(&md5, padbuf, 48); + mbedtls_md5_finish_ret(&md5, md5sum); - mbedtls_sha1_update_ret( &sha1, (const unsigned char *) sender, 4 ); - mbedtls_sha1_update_ret( &sha1, session->master, 48 ); - mbedtls_sha1_update_ret( &sha1, padbuf, 40 ); - mbedtls_sha1_finish_ret( &sha1, sha1sum ); + mbedtls_sha1_update_ret(&sha1, (const unsigned char *) sender, 4); + mbedtls_sha1_update_ret(&sha1, session->master, 48); + mbedtls_sha1_update_ret(&sha1, padbuf, 40); + mbedtls_sha1_finish_ret(&sha1, sha1sum); - memset( padbuf, 0x5C, 48 ); + memset(padbuf, 0x5C, 48); - mbedtls_md5_starts_ret( &md5 ); - mbedtls_md5_update_ret( &md5, session->master, 48 ); - mbedtls_md5_update_ret( &md5, padbuf, 48 ); - mbedtls_md5_update_ret( &md5, md5sum, 16 ); - mbedtls_md5_finish_ret( &md5, buf ); + mbedtls_md5_starts_ret(&md5); + mbedtls_md5_update_ret(&md5, session->master, 48); + mbedtls_md5_update_ret(&md5, padbuf, 48); + mbedtls_md5_update_ret(&md5, md5sum, 16); + mbedtls_md5_finish_ret(&md5, buf); - mbedtls_sha1_starts_ret( &sha1 ); - mbedtls_sha1_update_ret( &sha1, session->master, 48 ); - mbedtls_sha1_update_ret( &sha1, padbuf , 40 ); - mbedtls_sha1_update_ret( &sha1, sha1sum, 20 ); - mbedtls_sha1_finish_ret( &sha1, buf + 16 ); + mbedtls_sha1_starts_ret(&sha1); + mbedtls_sha1_update_ret(&sha1, session->master, 48); + mbedtls_sha1_update_ret(&sha1, padbuf, 40); + mbedtls_sha1_update_ret(&sha1, sha1sum, 20); + mbedtls_sha1_finish_ret(&sha1, buf + 16); - MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, 36 ); + MBEDTLS_SSL_DEBUG_BUF(3, "calc finished result", buf, 36); - mbedtls_md5_free( &md5 ); - mbedtls_sha1_free( &sha1 ); + mbedtls_md5_free(&md5); + mbedtls_sha1_free(&sha1); - mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) ); - mbedtls_platform_zeroize( md5sum, sizeof( md5sum ) ); - mbedtls_platform_zeroize( sha1sum, sizeof( sha1sum ) ); + mbedtls_platform_zeroize(padbuf, sizeof(padbuf)); + mbedtls_platform_zeroize(md5sum, sizeof(md5sum)); + mbedtls_platform_zeroize(sha1sum, sizeof(sha1sum)); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc finished")); } #endif /* MBEDTLS_SSL_PROTO_SSL3 */ #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) static void ssl_calc_finished_tls( - mbedtls_ssl_context *ssl, unsigned char *buf, int from ) + mbedtls_ssl_context *ssl, unsigned char *buf, int from) { int len = 12; const char *sender; @@ -3228,16 +3132,17 @@ static void ssl_calc_finished_tls( unsigned char padbuf[36]; mbedtls_ssl_session *session = ssl->session_negotiate; - if( !session ) + if (!session) { session = ssl->session; + } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc finished tls")); - mbedtls_md5_init( &md5 ); - mbedtls_sha1_init( &sha1 ); + mbedtls_md5_init(&md5); + mbedtls_sha1_init(&sha1); - mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 ); - mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 ); + mbedtls_md5_clone(&md5, &ssl->handshake->fin_md5); + mbedtls_sha1_clone(&sha1, &ssl->handshake->fin_sha1); /* * TLSv1: @@ -3246,40 +3151,40 @@ static void ssl_calc_finished_tls( */ #if !defined(MBEDTLS_MD5_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished md5 state", (unsigned char *) - md5.state, sizeof( md5.state ) ); + MBEDTLS_SSL_DEBUG_BUF(4, "finished md5 state", (unsigned char *) + md5.state, sizeof(md5.state)); #endif #if !defined(MBEDTLS_SHA1_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *) - sha1.state, sizeof( sha1.state ) ); + MBEDTLS_SSL_DEBUG_BUF(4, "finished sha1 state", (unsigned char *) + sha1.state, sizeof(sha1.state)); #endif - sender = ( from == MBEDTLS_SSL_IS_CLIENT ) + sender = (from == MBEDTLS_SSL_IS_CLIENT) ? "client finished" : "server finished"; - mbedtls_md5_finish_ret( &md5, padbuf ); - mbedtls_sha1_finish_ret( &sha1, padbuf + 16 ); + mbedtls_md5_finish_ret(&md5, padbuf); + mbedtls_sha1_finish_ret(&sha1, padbuf + 16); - ssl->handshake->tls_prf( session->master, 48, sender, - padbuf, 36, buf, len ); + ssl->handshake->tls_prf(session->master, 48, sender, + padbuf, 36, buf, len); - MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len ); + MBEDTLS_SSL_DEBUG_BUF(3, "calc finished result", buf, len); - mbedtls_md5_free( &md5 ); - mbedtls_sha1_free( &sha1 ); + mbedtls_md5_free(&md5); + mbedtls_sha1_free(&sha1); - mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) ); + mbedtls_platform_zeroize(padbuf, sizeof(padbuf)); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc finished")); } #endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */ #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA256_C) static void ssl_calc_finished_tls_sha256( - mbedtls_ssl_context *ssl, unsigned char *buf, int from ) + mbedtls_ssl_context *ssl, unsigned char *buf, int from) { int len = 12; const char *sender; @@ -3293,39 +3198,38 @@ static void ssl_calc_finished_tls_sha256( #endif mbedtls_ssl_session *session = ssl->session_negotiate; - if( !session ) + if (!session) { session = ssl->session; + } - sender = ( from == MBEDTLS_SSL_IS_CLIENT ) + sender = (from == MBEDTLS_SSL_IS_CLIENT) ? "client finished" : "server finished"; #if defined(MBEDTLS_USE_PSA_CRYPTO) sha256_psa = psa_hash_operation_init(); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc PSA finished tls sha256" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc PSA finished tls sha256")); - status = psa_hash_clone( &ssl->handshake->fin_sha256_psa, &sha256_psa ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) ); + status = psa_hash_clone(&ssl->handshake->fin_sha256_psa, &sha256_psa); + if (status != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash clone failed")); return; } - status = psa_hash_finish( &sha256_psa, padbuf, sizeof( padbuf ), &hash_size ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) ); + status = psa_hash_finish(&sha256_psa, padbuf, sizeof(padbuf), &hash_size); + if (status != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash finish failed")); return; } - MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated padbuf", padbuf, 32 ); + MBEDTLS_SSL_DEBUG_BUF(3, "PSA calculated padbuf", padbuf, 32); #else - mbedtls_sha256_init( &sha256 ); + mbedtls_sha256_init(&sha256); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls sha256" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc finished tls sha256")); - mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 ); + mbedtls_sha256_clone(&sha256, &ssl->handshake->fin_sha256); /* * TLSv1.2: @@ -3334,29 +3238,29 @@ static void ssl_calc_finished_tls_sha256( */ #if !defined(MBEDTLS_SHA256_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha2 state", (unsigned char *) - sha256.state, sizeof( sha256.state ) ); + MBEDTLS_SSL_DEBUG_BUF(4, "finished sha2 state", (unsigned char *) + sha256.state, sizeof(sha256.state)); #endif - mbedtls_sha256_finish_ret( &sha256, padbuf ); - mbedtls_sha256_free( &sha256 ); + mbedtls_sha256_finish_ret(&sha256, padbuf); + mbedtls_sha256_free(&sha256); #endif /* MBEDTLS_USE_PSA_CRYPTO */ - ssl->handshake->tls_prf( session->master, 48, sender, - padbuf, 32, buf, len ); + ssl->handshake->tls_prf(session->master, 48, sender, + padbuf, 32, buf, len); - MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len ); + MBEDTLS_SSL_DEBUG_BUF(3, "calc finished result", buf, len); - mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) ); + mbedtls_platform_zeroize(padbuf, sizeof(padbuf)); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc finished")); } #endif /* MBEDTLS_SHA256_C */ #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) static void ssl_calc_finished_tls_sha384( - mbedtls_ssl_context *ssl, unsigned char *buf, int from ) + mbedtls_ssl_context *ssl, unsigned char *buf, int from) { int len = 12; const char *sender; @@ -3370,38 +3274,37 @@ static void ssl_calc_finished_tls_sha384( #endif mbedtls_ssl_session *session = ssl->session_negotiate; - if( !session ) + if (!session) { session = ssl->session; + } - sender = ( from == MBEDTLS_SSL_IS_CLIENT ) + sender = (from == MBEDTLS_SSL_IS_CLIENT) ? "client finished" : "server finished"; #if defined(MBEDTLS_USE_PSA_CRYPTO) sha384_psa = psa_hash_operation_init(); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc PSA finished tls sha384" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc PSA finished tls sha384")); - status = psa_hash_clone( &ssl->handshake->fin_sha384_psa, &sha384_psa ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash clone failed" ) ); + status = psa_hash_clone(&ssl->handshake->fin_sha384_psa, &sha384_psa); + if (status != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash clone failed")); return; } - status = psa_hash_finish( &sha384_psa, padbuf, sizeof( padbuf ), &hash_size ); - if( status != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "PSA hash finish failed" ) ); + status = psa_hash_finish(&sha384_psa, padbuf, sizeof(padbuf), &hash_size); + if (status != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_MSG(2, ("PSA hash finish failed")); return; } - MBEDTLS_SSL_DEBUG_BUF( 3, "PSA calculated padbuf", padbuf, 48 ); + MBEDTLS_SSL_DEBUG_BUF(3, "PSA calculated padbuf", padbuf, 48); #else - mbedtls_sha512_init( &sha512 ); + mbedtls_sha512_init(&sha512); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls sha384" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc finished tls sha384")); - mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 ); + mbedtls_sha512_clone(&sha512, &ssl->handshake->fin_sha512); /* * TLSv1.2: @@ -3410,8 +3313,8 @@ static void ssl_calc_finished_tls_sha384( */ #if !defined(MBEDTLS_SHA512_ALT) - MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha512 state", (unsigned char *) - sha512.state, sizeof( sha512.state ) ); + MBEDTLS_SSL_DEBUG_BUF(4, "finished sha512 state", (unsigned char *) + sha512.state, sizeof(sha512.state)); #endif /* mbedtls_sha512_finish_ret's output parameter is declared as a * 64-byte buffer, but since we're using SHA-384, we know that the @@ -3422,60 +3325,58 @@ static void ssl_calc_finished_tls_sha384( #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wstringop-overflow" #endif - mbedtls_sha512_finish_ret( &sha512, padbuf ); + mbedtls_sha512_finish_ret(&sha512, padbuf); #if defined(__GNUC__) && __GNUC__ >= 11 #pragma GCC diagnostic pop #endif - mbedtls_sha512_free( &sha512 ); + mbedtls_sha512_free(&sha512); #endif - ssl->handshake->tls_prf( session->master, 48, sender, - padbuf, 48, buf, len ); + ssl->handshake->tls_prf(session->master, 48, sender, + padbuf, 48, buf, len); - MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len ); + MBEDTLS_SSL_DEBUG_BUF(3, "calc finished result", buf, len); - mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) ); + mbedtls_platform_zeroize(padbuf, sizeof(padbuf)); - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc finished")); } #endif /* MBEDTLS_SHA512_C && !MBEDTLS_SHA512_NO_SHA384 */ #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ -void mbedtls_ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl ) +void mbedtls_ssl_handshake_wrapup_free_hs_transform(mbedtls_ssl_context *ssl) { - MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup: final free" ) ); + MBEDTLS_SSL_DEBUG_MSG(3, ("=> handshake wrapup: final free")); /* * Free our handshake params */ - mbedtls_ssl_handshake_free( ssl ); - mbedtls_free( ssl->handshake ); + mbedtls_ssl_handshake_free(ssl); + mbedtls_free(ssl->handshake); ssl->handshake = NULL; /* * Free the previous transform and switch in the current one */ - if( ssl->transform ) - { - mbedtls_ssl_transform_free( ssl->transform ); - mbedtls_free( ssl->transform ); + if (ssl->transform) { + mbedtls_ssl_transform_free(ssl->transform); + mbedtls_free(ssl->transform); } ssl->transform = ssl->transform_negotiate; ssl->transform_negotiate = NULL; - MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup: final free" ) ); + MBEDTLS_SSL_DEBUG_MSG(3, ("<= handshake wrapup: final free")); } -void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl ) +void mbedtls_ssl_handshake_wrapup(mbedtls_ssl_context *ssl) { int resume = ssl->handshake->resume; - MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup" ) ); + MBEDTLS_SSL_DEBUG_MSG(3, ("=> handshake wrapup")); #if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - { + if (ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS) { ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_DONE; ssl->renego_records_seen = 0; } @@ -3484,16 +3385,15 @@ void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl ) /* * Free the previous session and switch in the current one */ - if( ssl->session ) - { + if (ssl->session) { #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) /* RFC 7366 3.1: keep the EtM state */ ssl->session_negotiate->encrypt_then_mac = - ssl->session->encrypt_then_mac; + ssl->session->encrypt_then_mac; #endif - mbedtls_ssl_session_free( ssl->session ); - mbedtls_free( ssl->session ); + mbedtls_ssl_session_free(ssl->session); + mbedtls_free(ssl->session); } ssl->session = ssl->session_negotiate; ssl->session_negotiate = NULL; @@ -3501,43 +3401,41 @@ void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl ) /* * Add cache entry */ - if( ssl->conf->f_set_cache != NULL && + if (ssl->conf->f_set_cache != NULL && ssl->session->id_len != 0 && - resume == 0 ) - { - if( ssl->conf->f_set_cache( ssl->conf->p_cache, ssl->session ) != 0 ) - MBEDTLS_SSL_DEBUG_MSG( 1, ( "cache did not store session" ) ); + resume == 0) { + if (ssl->conf->f_set_cache(ssl->conf->p_cache, ssl->session) != 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("cache did not store session")); + } } #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->handshake->flight != NULL ) - { + if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->handshake->flight != NULL) { /* Cancel handshake timer */ - mbedtls_ssl_set_timer( ssl, 0 ); + mbedtls_ssl_set_timer(ssl, 0); /* Keep last flight around in case we need to resend it: * we need the handshake and transform structures for that */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip freeing handshake and transform" ) ); - } - else + MBEDTLS_SSL_DEBUG_MSG(3, ("skip freeing handshake and transform")); + } else #endif - mbedtls_ssl_handshake_wrapup_free_hs_transform( ssl ); + mbedtls_ssl_handshake_wrapup_free_hs_transform(ssl); ssl->state++; - MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup" ) ); + MBEDTLS_SSL_DEBUG_MSG(3, ("<= handshake wrapup")); } -int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_write_finished(mbedtls_ssl_context *ssl) { int ret, hash_len; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write finished" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> write finished")); - mbedtls_ssl_update_out_pointers( ssl, ssl->transform_negotiate ); + mbedtls_ssl_update_out_pointers(ssl, ssl->transform_negotiate); - ssl->handshake->calc_finished( ssl, ssl->out_msg + 4, ssl->conf->endpoint ); + ssl->handshake->calc_finished(ssl, ssl->out_msg + 4, ssl->conf->endpoint); /* * RFC 5246 7.4.9 (Page 63) says 12 is the default length and ciphersuites @@ -3545,11 +3443,11 @@ int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl ) * ciphersuite does this (and this is unlikely to change as activity has * moved to TLS 1.3 now) so we can keep the hardcoded 12 here. */ - hash_len = ( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) ? 36 : 12; + hash_len = (ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) ? 36 : 12; #if defined(MBEDTLS_SSL_RENEGOTIATION) ssl->verify_data_len = hash_len; - memcpy( ssl->own_verify_data, ssl->out_msg + 4, hash_len ); + memcpy(ssl->own_verify_data, ssl->out_msg + 4, hash_len); #endif ssl->out_msglen = 4 + hash_len; @@ -3560,91 +3458,88 @@ int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl ) * In case of session resuming, invert the client and server * ChangeCipherSpec messages order. */ - if( ssl->handshake->resume != 0 ) - { + if (ssl->handshake->resume != 0) { #if defined(MBEDTLS_SSL_CLI_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) { ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP; + } #endif #if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) { ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC; + } #endif - } - else + } else { ssl->state++; + } /* * Switch to our negotiated transform and session parameters for outbound * data. */ - MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for outbound data" ) ); + MBEDTLS_SSL_DEBUG_MSG(3, ("switching to new transform spec for outbound data")); #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { + if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) { unsigned char i; /* Remember current epoch settings for resending */ ssl->handshake->alt_transform_out = ssl->transform_out; - memcpy( ssl->handshake->alt_out_ctr, ssl->cur_out_ctr, 8 ); + memcpy(ssl->handshake->alt_out_ctr, ssl->cur_out_ctr, 8); /* Set sequence_number to zero */ - memset( ssl->cur_out_ctr + 2, 0, 6 ); + memset(ssl->cur_out_ctr + 2, 0, 6); /* Increment epoch */ - for( i = 2; i > 0; i-- ) - if( ++ssl->cur_out_ctr[i - 1] != 0 ) + for (i = 2; i > 0; i--) { + if (++ssl->cur_out_ctr[i - 1] != 0) { break; + } + } /* The loop goes to its end iff the counter is wrapping */ - if( i == 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) ); - return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING ); + if (i == 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("DTLS epoch would wrap")); + return MBEDTLS_ERR_SSL_COUNTER_WRAPPING; } - } - else + } else #endif /* MBEDTLS_SSL_PROTO_DTLS */ - memset( ssl->cur_out_ctr, 0, 8 ); + memset(ssl->cur_out_ctr, 0, 8); ssl->transform_out = ssl->transform_negotiate; ssl->session_out = ssl->session_negotiate; #if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_activate != NULL ) - { - if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + if (mbedtls_ssl_hw_record_activate != NULL) { + if ((ret = mbedtls_ssl_hw_record_activate(ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_hw_record_activate", ret); + return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; } } #endif #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - mbedtls_ssl_send_flight_completed( ssl ); + if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) { + mbedtls_ssl_send_flight_completed(ssl); + } #endif - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); + if ((ret = mbedtls_ssl_write_handshake_msg(ssl)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_handshake_msg", ret); + return ret; } #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret ); - return( ret ); + if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + (ret = mbedtls_ssl_flight_transmit(ssl)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_flight_transmit", ret); + return ret; } #endif - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write finished" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= write finished")); - return( 0 ); + return 0; } #if defined(MBEDTLS_SSL_PROTO_SSL3) @@ -3653,118 +3548,116 @@ int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl ) #define SSL_MAX_HASH_LEN 12 #endif -int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_parse_finished(mbedtls_ssl_context *ssl) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; unsigned int hash_len; unsigned char buf[SSL_MAX_HASH_LEN]; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse finished" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse finished")); /* There is currently no ciphersuite using another length with TLS 1.2 */ #if defined(MBEDTLS_SSL_PROTO_SSL3) - if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) + if (ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0) { hash_len = 36; - else + } else #endif - hash_len = 12; + hash_len = 12; - ssl->handshake->calc_finished( ssl, buf, ssl->conf->endpoint ^ 1 ); + ssl->handshake->calc_finished(ssl, buf, ssl->conf->endpoint ^ 1); - if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret ); + if ((ret = mbedtls_ssl_read_record(ssl, 1)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_read_record", ret); goto exit; } - if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE ); + if (ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE) { + MBEDTLS_SSL_DEBUG_MSG(1, ("bad finished message")); + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE); ret = MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE; goto exit; } - if( ssl->in_msg[0] != MBEDTLS_SSL_HS_FINISHED || - ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + hash_len ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR ); + if (ssl->in_msg[0] != MBEDTLS_SSL_HS_FINISHED || + ssl->in_hslen != mbedtls_ssl_hs_hdr_len(ssl) + hash_len) { + MBEDTLS_SSL_DEBUG_MSG(1, ("bad finished message")); + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR); ret = MBEDTLS_ERR_SSL_BAD_HS_FINISHED; goto exit; } - if( mbedtls_ct_memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ), - buf, hash_len ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) ); - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR ); + if (mbedtls_ct_memcmp(ssl->in_msg + mbedtls_ssl_hs_hdr_len(ssl), + buf, hash_len) != 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("bad finished message")); + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR); ret = MBEDTLS_ERR_SSL_BAD_HS_FINISHED; goto exit; } #if defined(MBEDTLS_SSL_RENEGOTIATION) ssl->verify_data_len = hash_len; - memcpy( ssl->peer_verify_data, buf, hash_len ); + memcpy(ssl->peer_verify_data, buf, hash_len); #endif - if( ssl->handshake->resume != 0 ) - { + if (ssl->handshake->resume != 0) { #if defined(MBEDTLS_SSL_CLI_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) { ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC; + } #endif #if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) { ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP; + } #endif - } - else + } else { ssl->state++; + } #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - mbedtls_ssl_recv_flight_completed( ssl ); + if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) { + mbedtls_ssl_recv_flight_completed(ssl); + } #endif - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse finished" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= parse finished")); exit: - mbedtls_platform_zeroize( buf, hash_len ); - return( ret ); + mbedtls_platform_zeroize(buf, hash_len); + return ret; } -static void ssl_handshake_params_init( mbedtls_ssl_handshake_params *handshake ) +static void ssl_handshake_params_init(mbedtls_ssl_handshake_params *handshake) { - memset( handshake, 0, sizeof( mbedtls_ssl_handshake_params ) ); + memset(handshake, 0, sizeof(mbedtls_ssl_handshake_params)); #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ defined(MBEDTLS_SSL_PROTO_TLS1_1) - mbedtls_md5_init( &handshake->fin_md5 ); - mbedtls_sha1_init( &handshake->fin_sha1 ); - mbedtls_md5_starts_ret( &handshake->fin_md5 ); - mbedtls_sha1_starts_ret( &handshake->fin_sha1 ); + mbedtls_md5_init(&handshake->fin_md5); + mbedtls_sha1_init(&handshake->fin_sha1); + mbedtls_md5_starts_ret(&handshake->fin_md5); + mbedtls_sha1_starts_ret(&handshake->fin_sha1); #endif #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA256_C) #if defined(MBEDTLS_USE_PSA_CRYPTO) handshake->fin_sha256_psa = psa_hash_operation_init(); - psa_hash_setup( &handshake->fin_sha256_psa, PSA_ALG_SHA_256 ); + psa_hash_setup(&handshake->fin_sha256_psa, PSA_ALG_SHA_256); #else - mbedtls_sha256_init( &handshake->fin_sha256 ); - mbedtls_sha256_starts_ret( &handshake->fin_sha256, 0 ); + mbedtls_sha256_init(&handshake->fin_sha256); + mbedtls_sha256_starts_ret(&handshake->fin_sha256, 0); #endif #endif #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) #if defined(MBEDTLS_USE_PSA_CRYPTO) handshake->fin_sha384_psa = psa_hash_operation_init(); - psa_hash_setup( &handshake->fin_sha384_psa, PSA_ALG_SHA_384 ); + psa_hash_setup(&handshake->fin_sha384_psa, PSA_ALG_SHA_384); #else - mbedtls_sha512_init( &handshake->fin_sha512 ); - mbedtls_sha512_starts_ret( &handshake->fin_sha512, 1 ); + mbedtls_sha512_init(&handshake->fin_sha512); + mbedtls_sha512_starts_ret(&handshake->fin_sha512, 1); #endif #endif #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ @@ -3773,17 +3666,17 @@ static void ssl_handshake_params_init( mbedtls_ssl_handshake_params *handshake ) #if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \ defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) - mbedtls_ssl_sig_hash_set_init( &handshake->hash_algs ); + mbedtls_ssl_sig_hash_set_init(&handshake->hash_algs); #endif #if defined(MBEDTLS_DHM_C) - mbedtls_dhm_init( &handshake->dhm_ctx ); + mbedtls_dhm_init(&handshake->dhm_ctx); #endif #if defined(MBEDTLS_ECDH_C) - mbedtls_ecdh_init( &handshake->ecdh_ctx ); + mbedtls_ecdh_init(&handshake->ecdh_ctx); #endif #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - mbedtls_ecjpake_init( &handshake->ecjpake_ctx ); + mbedtls_ecjpake_init(&handshake->ecjpake_ctx); #if defined(MBEDTLS_SSL_CLI_C) handshake->ecjpake_cache = NULL; handshake->ecjpake_cache_len = 0; @@ -3791,7 +3684,7 @@ static void ssl_handshake_params_init( mbedtls_ssl_handshake_params *handshake ) #endif #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED) - mbedtls_x509_crt_restart_init( &handshake->ecrs_ctx ); + mbedtls_x509_crt_restart_init(&handshake->ecrs_ctx); #endif #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) @@ -3800,110 +3693,109 @@ static void ssl_handshake_params_init( mbedtls_ssl_handshake_params *handshake ) #if defined(MBEDTLS_X509_CRT_PARSE_C) && \ !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - mbedtls_pk_init( &handshake->peer_pubkey ); + mbedtls_pk_init(&handshake->peer_pubkey); #endif } -void mbedtls_ssl_transform_init( mbedtls_ssl_transform *transform ) +void mbedtls_ssl_transform_init(mbedtls_ssl_transform *transform) { - memset( transform, 0, sizeof(mbedtls_ssl_transform) ); + memset(transform, 0, sizeof(mbedtls_ssl_transform)); - mbedtls_cipher_init( &transform->cipher_ctx_enc ); - mbedtls_cipher_init( &transform->cipher_ctx_dec ); + mbedtls_cipher_init(&transform->cipher_ctx_enc); + mbedtls_cipher_init(&transform->cipher_ctx_dec); #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC) - mbedtls_md_init( &transform->md_ctx_enc ); - mbedtls_md_init( &transform->md_ctx_dec ); + mbedtls_md_init(&transform->md_ctx_enc); + mbedtls_md_init(&transform->md_ctx_dec); #endif } -void mbedtls_ssl_session_init( mbedtls_ssl_session *session ) +void mbedtls_ssl_session_init(mbedtls_ssl_session *session) { - memset( session, 0, sizeof(mbedtls_ssl_session) ); + memset(session, 0, sizeof(mbedtls_ssl_session)); } MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_handshake_init( mbedtls_ssl_context *ssl ) +static int ssl_handshake_init(mbedtls_ssl_context *ssl) { /* Clear old handshake information if present */ - if( ssl->transform_negotiate ) - mbedtls_ssl_transform_free( ssl->transform_negotiate ); - if( ssl->session_negotiate ) - mbedtls_ssl_session_free( ssl->session_negotiate ); - if( ssl->handshake ) - mbedtls_ssl_handshake_free( ssl ); + if (ssl->transform_negotiate) { + mbedtls_ssl_transform_free(ssl->transform_negotiate); + } + if (ssl->session_negotiate) { + mbedtls_ssl_session_free(ssl->session_negotiate); + } + if (ssl->handshake) { + mbedtls_ssl_handshake_free(ssl); + } /* * Either the pointers are now NULL or cleared properly and can be freed. * Now allocate missing structures. */ - if( ssl->transform_negotiate == NULL ) - { - ssl->transform_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_transform) ); + if (ssl->transform_negotiate == NULL) { + ssl->transform_negotiate = mbedtls_calloc(1, sizeof(mbedtls_ssl_transform)); } - if( ssl->session_negotiate == NULL ) - { - ssl->session_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_session) ); + if (ssl->session_negotiate == NULL) { + ssl->session_negotiate = mbedtls_calloc(1, sizeof(mbedtls_ssl_session)); } - if( ssl->handshake == NULL ) - { - ssl->handshake = mbedtls_calloc( 1, sizeof(mbedtls_ssl_handshake_params) ); + if (ssl->handshake == NULL) { + ssl->handshake = mbedtls_calloc(1, sizeof(mbedtls_ssl_handshake_params)); } #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) /* If the buffers are too small - reallocate */ - handle_buffer_resizing( ssl, 0, MBEDTLS_SSL_IN_BUFFER_LEN, - MBEDTLS_SSL_OUT_BUFFER_LEN ); + handle_buffer_resizing(ssl, 0, MBEDTLS_SSL_IN_BUFFER_LEN, + MBEDTLS_SSL_OUT_BUFFER_LEN); #endif /* All pointers should exist and can be directly freed without issue */ - if( ssl->handshake == NULL || + if (ssl->handshake == NULL || ssl->transform_negotiate == NULL || - ssl->session_negotiate == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc() of ssl sub-contexts failed" ) ); + ssl->session_negotiate == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("alloc() of ssl sub-contexts failed")); - mbedtls_free( ssl->handshake ); - mbedtls_free( ssl->transform_negotiate ); - mbedtls_free( ssl->session_negotiate ); + mbedtls_free(ssl->handshake); + mbedtls_free(ssl->transform_negotiate); + mbedtls_free(ssl->session_negotiate); ssl->handshake = NULL; ssl->transform_negotiate = NULL; ssl->session_negotiate = NULL; - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + return MBEDTLS_ERR_SSL_ALLOC_FAILED; } /* Initialize structures */ - mbedtls_ssl_session_init( ssl->session_negotiate ); - mbedtls_ssl_transform_init( ssl->transform_negotiate ); - ssl_handshake_params_init( ssl->handshake ); + mbedtls_ssl_session_init(ssl->session_negotiate); + mbedtls_ssl_transform_init(ssl->transform_negotiate); + ssl_handshake_params_init(ssl->handshake); #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { + if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) { ssl->handshake->alt_transform_out = ssl->transform_out; - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) { ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING; - else + } else { ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING; + } - mbedtls_ssl_set_timer( ssl, 0 ); + mbedtls_ssl_set_timer(ssl, 0); } #endif - return( 0 ); + return 0; } #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) /* Dummy cookie callbacks for defaults */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_cookie_write_dummy( void *ctx, - unsigned char **p, unsigned char *end, - const unsigned char *cli_id, size_t cli_id_len ) +static int ssl_cookie_write_dummy(void *ctx, + unsigned char **p, unsigned char *end, + const unsigned char *cli_id, size_t cli_id_len) { ((void) ctx); ((void) p); @@ -3911,13 +3803,13 @@ static int ssl_cookie_write_dummy( void *ctx, ((void) cli_id); ((void) cli_id_len); - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; } MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_cookie_check_dummy( void *ctx, - const unsigned char *cookie, size_t cookie_len, - const unsigned char *cli_id, size_t cli_id_len ) +static int ssl_cookie_check_dummy(void *ctx, + const unsigned char *cookie, size_t cookie_len, + const unsigned char *cli_id, size_t cli_id_len) { ((void) ctx); ((void) cookie); @@ -3925,24 +3817,24 @@ static int ssl_cookie_check_dummy( void *ctx, ((void) cli_id); ((void) cli_id_len); - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; } #endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */ /* * Initialize an SSL context */ -void mbedtls_ssl_init( mbedtls_ssl_context *ssl ) +void mbedtls_ssl_init(mbedtls_ssl_context *ssl) { - memset( ssl, 0, sizeof( mbedtls_ssl_context ) ); + memset(ssl, 0, sizeof(mbedtls_ssl_context)); } /* * Setup an SSL context */ -int mbedtls_ssl_setup( mbedtls_ssl_context *ssl, - const mbedtls_ssl_config *conf ) +int mbedtls_ssl_setup(mbedtls_ssl_context *ssl, + const mbedtls_ssl_config *conf) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; size_t in_buf_len = MBEDTLS_SSL_IN_BUFFER_LEN; @@ -3960,10 +3852,9 @@ int mbedtls_ssl_setup( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) ssl->in_buf_len = in_buf_len; #endif - ssl->in_buf = mbedtls_calloc( 1, in_buf_len ); - if( ssl->in_buf == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", in_buf_len ) ); + ssl->in_buf = mbedtls_calloc(1, in_buf_len); + if (ssl->in_buf == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", in_buf_len)); ret = MBEDTLS_ERR_SSL_ALLOC_FAILED; goto error; } @@ -3971,28 +3862,28 @@ int mbedtls_ssl_setup( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) ssl->out_buf_len = out_buf_len; #endif - ssl->out_buf = mbedtls_calloc( 1, out_buf_len ); - if( ssl->out_buf == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", out_buf_len ) ); + ssl->out_buf = mbedtls_calloc(1, out_buf_len); + if (ssl->out_buf == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("alloc(%" MBEDTLS_PRINTF_SIZET " bytes) failed", out_buf_len)); ret = MBEDTLS_ERR_SSL_ALLOC_FAILED; goto error; } - mbedtls_ssl_reset_in_out_pointers( ssl ); + mbedtls_ssl_reset_in_out_pointers(ssl); #if defined(MBEDTLS_SSL_DTLS_SRTP) - memset( &ssl->dtls_srtp_info, 0, sizeof(ssl->dtls_srtp_info) ); + memset(&ssl->dtls_srtp_info, 0, sizeof(ssl->dtls_srtp_info)); #endif - if( ( ret = ssl_handshake_init( ssl ) ) != 0 ) + if ((ret = ssl_handshake_init(ssl)) != 0) { goto error; + } - return( 0 ); + return 0; error: - mbedtls_free( ssl->in_buf ); - mbedtls_free( ssl->out_buf ); + mbedtls_free(ssl->in_buf); + mbedtls_free(ssl->out_buf); ssl->conf = NULL; @@ -4015,7 +3906,7 @@ error: ssl->out_iv = NULL; ssl->out_msg = NULL; - return( ret ); + return ret; } /* @@ -4025,7 +3916,7 @@ error: * If partial is non-zero, keep data in the input buffer and client ID. * (Use when a DTLS client reconnects from the same port.) */ -int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial ) +int mbedtls_ssl_session_reset_int(mbedtls_ssl_context *ssl, int partial) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) @@ -4044,20 +3935,20 @@ int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial ) ssl->state = MBEDTLS_SSL_HELLO_REQUEST; /* Cancel any possibly running timer */ - mbedtls_ssl_set_timer( ssl, 0 ); + mbedtls_ssl_set_timer(ssl, 0); #if defined(MBEDTLS_SSL_RENEGOTIATION) ssl->renego_status = MBEDTLS_SSL_INITIAL_HANDSHAKE; ssl->renego_records_seen = 0; ssl->verify_data_len = 0; - memset( ssl->own_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN ); - memset( ssl->peer_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN ); + memset(ssl->own_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN); + memset(ssl->peer_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN); #endif ssl->secure_renegotiation = MBEDTLS_SSL_LEGACY_RENEGOTIATION; ssl->in_offt = NULL; - mbedtls_ssl_reset_in_out_pointers( ssl ); + mbedtls_ssl_reset_in_out_pointers(ssl); ssl->in_msgtype = 0; ssl->in_msglen = 0; @@ -4066,7 +3957,7 @@ int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial ) ssl->in_epoch = 0; #endif #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) - mbedtls_ssl_dtls_replay_reset( ssl ); + mbedtls_ssl_dtls_replay_reset(ssl); #endif ssl->in_hslen = 0; @@ -4078,11 +3969,12 @@ int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial ) ssl->out_msglen = 0; ssl->out_left = 0; #if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) - if( ssl->split_done != MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED ) + if (ssl->split_done != MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED) { ssl->split_done = 0; + } #endif - memset( ssl->cur_out_ctr, 0, sizeof( ssl->cur_out_ctr ) ); + memset(ssl->cur_out_ctr, 0, sizeof(ssl->cur_out_ctr)); ssl->transform_in = NULL; ssl->transform_out = NULL; @@ -4090,42 +3982,38 @@ int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial ) ssl->session_in = NULL; ssl->session_out = NULL; - memset( ssl->out_buf, 0, out_buf_len ); + memset(ssl->out_buf, 0, out_buf_len); int clear_in_buf = 1; #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C) - if( partial != 0 ) + if (partial != 0) { clear_in_buf = 0; + } #endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */ - if( clear_in_buf ) - { + if (clear_in_buf) { ssl->in_left = 0; - memset( ssl->in_buf, 0, in_buf_len ); + memset(ssl->in_buf, 0, in_buf_len); } #if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_reset != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_reset()" ) ); - if( ( ret = mbedtls_ssl_hw_record_reset( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_reset", ret ); - return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED ); + if (mbedtls_ssl_hw_record_reset != NULL) { + MBEDTLS_SSL_DEBUG_MSG(2, ("going for mbedtls_ssl_hw_record_reset()")); + if ((ret = mbedtls_ssl_hw_record_reset(ssl)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_hw_record_reset", ret); + return MBEDTLS_ERR_SSL_HW_ACCEL_FAILED; } } #endif - if( ssl->transform ) - { - mbedtls_ssl_transform_free( ssl->transform ); - mbedtls_free( ssl->transform ); + if (ssl->transform) { + mbedtls_ssl_transform_free(ssl->transform); + mbedtls_free(ssl->transform); ssl->transform = NULL; } - if( ssl->session ) - { - mbedtls_ssl_session_free( ssl->session ); - mbedtls_free( ssl->session ); + if (ssl->session) { + mbedtls_ssl_session_free(ssl->session); + mbedtls_free(ssl->session); ssl->session = NULL; } @@ -4136,54 +4024,55 @@ int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial ) #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) int free_cli_id = 1; #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) - if( partial != 0 ) + if (partial != 0) { free_cli_id = 0; + } #endif - if( free_cli_id ) - { - mbedtls_free( ssl->cli_id ); + if (free_cli_id) { + mbedtls_free(ssl->cli_id); ssl->cli_id = NULL; ssl->cli_id_len = 0; } #endif - if( ( ret = ssl_handshake_init( ssl ) ) != 0 ) - return( ret ); + if ((ret = ssl_handshake_init(ssl)) != 0) { + return ret; + } - return( 0 ); + return 0; } /* * Reset an initialized and used SSL context for re-use while retaining * all application-set variables, function pointers and data. */ -int mbedtls_ssl_session_reset( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_session_reset(mbedtls_ssl_context *ssl) { - return( mbedtls_ssl_session_reset_int( ssl, 0 ) ); + return mbedtls_ssl_session_reset_int(ssl, 0); } /* * SSL set accessors */ -void mbedtls_ssl_conf_endpoint( mbedtls_ssl_config *conf, int endpoint ) +void mbedtls_ssl_conf_endpoint(mbedtls_ssl_config *conf, int endpoint) { conf->endpoint = endpoint; } -void mbedtls_ssl_conf_transport( mbedtls_ssl_config *conf, int transport ) +void mbedtls_ssl_conf_transport(mbedtls_ssl_config *conf, int transport) { conf->transport = transport; } #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) -void mbedtls_ssl_conf_dtls_anti_replay( mbedtls_ssl_config *conf, char mode ) +void mbedtls_ssl_conf_dtls_anti_replay(mbedtls_ssl_config *conf, char mode) { conf->anti_replay = mode; } #endif #if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) -void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *conf, unsigned limit ) +void mbedtls_ssl_conf_dtls_badmac_limit(mbedtls_ssl_config *conf, unsigned limit) { conf->badmac_limit = limit; } @@ -4191,56 +4080,56 @@ void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *conf, unsigned limi #if defined(MBEDTLS_SSL_PROTO_DTLS) -void mbedtls_ssl_set_datagram_packing( mbedtls_ssl_context *ssl, - unsigned allow_packing ) +void mbedtls_ssl_set_datagram_packing(mbedtls_ssl_context *ssl, + unsigned allow_packing) { ssl->disable_datagram_packing = !allow_packing; } -void mbedtls_ssl_conf_handshake_timeout( mbedtls_ssl_config *conf, - uint32_t min, uint32_t max ) +void mbedtls_ssl_conf_handshake_timeout(mbedtls_ssl_config *conf, + uint32_t min, uint32_t max) { conf->hs_timeout_min = min; conf->hs_timeout_max = max; } #endif -void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *conf, int authmode ) +void mbedtls_ssl_conf_authmode(mbedtls_ssl_config *conf, int authmode) { conf->authmode = authmode; } #if defined(MBEDTLS_X509_CRT_PARSE_C) -void mbedtls_ssl_conf_verify( mbedtls_ssl_config *conf, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ) +void mbedtls_ssl_conf_verify(mbedtls_ssl_config *conf, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy) { conf->f_vrfy = f_vrfy; conf->p_vrfy = p_vrfy; } #endif /* MBEDTLS_X509_CRT_PARSE_C */ -void mbedtls_ssl_conf_rng( mbedtls_ssl_config *conf, - int (*f_rng)(void *, unsigned char *, size_t), - void *p_rng ) +void mbedtls_ssl_conf_rng(mbedtls_ssl_config *conf, + int (*f_rng)(void *, unsigned char *, size_t), + void *p_rng) { conf->f_rng = f_rng; conf->p_rng = p_rng; } -void mbedtls_ssl_conf_dbg( mbedtls_ssl_config *conf, - void (*f_dbg)(void *, int, const char *, int, const char *), - void *p_dbg ) +void mbedtls_ssl_conf_dbg(mbedtls_ssl_config *conf, + void (*f_dbg)(void *, int, const char *, int, const char *), + void *p_dbg) { conf->f_dbg = f_dbg; conf->p_dbg = p_dbg; } -void mbedtls_ssl_set_bio( mbedtls_ssl_context *ssl, - void *p_bio, - mbedtls_ssl_send_t *f_send, - mbedtls_ssl_recv_t *f_recv, - mbedtls_ssl_recv_timeout_t *f_recv_timeout ) +void mbedtls_ssl_set_bio(mbedtls_ssl_context *ssl, + void *p_bio, + mbedtls_ssl_send_t *f_send, + mbedtls_ssl_recv_t *f_recv, + mbedtls_ssl_recv_timeout_t *f_recv_timeout) { ssl->p_bio = p_bio; ssl->f_send = f_send; @@ -4249,35 +4138,35 @@ void mbedtls_ssl_set_bio( mbedtls_ssl_context *ssl, } #if defined(MBEDTLS_SSL_PROTO_DTLS) -void mbedtls_ssl_set_mtu( mbedtls_ssl_context *ssl, uint16_t mtu ) +void mbedtls_ssl_set_mtu(mbedtls_ssl_context *ssl, uint16_t mtu) { ssl->mtu = mtu; } #endif -void mbedtls_ssl_conf_read_timeout( mbedtls_ssl_config *conf, uint32_t timeout ) +void mbedtls_ssl_conf_read_timeout(mbedtls_ssl_config *conf, uint32_t timeout) { conf->read_timeout = timeout; } -void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *ssl, - void *p_timer, - mbedtls_ssl_set_timer_t *f_set_timer, - mbedtls_ssl_get_timer_t *f_get_timer ) +void mbedtls_ssl_set_timer_cb(mbedtls_ssl_context *ssl, + void *p_timer, + mbedtls_ssl_set_timer_t *f_set_timer, + mbedtls_ssl_get_timer_t *f_get_timer) { ssl->p_timer = p_timer; ssl->f_set_timer = f_set_timer; ssl->f_get_timer = f_get_timer; /* Make sure we start with no timer running */ - mbedtls_ssl_set_timer( ssl, 0 ); + mbedtls_ssl_set_timer(ssl, 0); } #if defined(MBEDTLS_SSL_SRV_C) -void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *conf, - void *p_cache, - int (*f_get_cache)(void *, mbedtls_ssl_session *), - int (*f_set_cache)(void *, const mbedtls_ssl_session *) ) +void mbedtls_ssl_conf_session_cache(mbedtls_ssl_config *conf, + void *p_cache, + int (*f_get_cache)(void *, mbedtls_ssl_session *), + int (*f_set_cache)(void *, const mbedtls_ssl_session *)) { conf->p_cache = p_cache; conf->f_get_cache = f_get_cache; @@ -4286,30 +4175,30 @@ void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *conf, #endif /* MBEDTLS_SSL_SRV_C */ #if defined(MBEDTLS_SSL_CLI_C) -int mbedtls_ssl_set_session( mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session ) +int mbedtls_ssl_set_session(mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - if( ssl == NULL || + if (ssl == NULL || session == NULL || ssl->session_negotiate == NULL || - ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - if( ( ret = mbedtls_ssl_session_copy( ssl->session_negotiate, - session ) ) != 0 ) - return( ret ); + if ((ret = mbedtls_ssl_session_copy(ssl->session_negotiate, + session)) != 0) { + return ret; + } ssl->handshake->resume = 1; - return( 0 ); + return 0; } #endif /* MBEDTLS_SSL_CLI_C */ -void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf, - const int *ciphersuites ) +void mbedtls_ssl_conf_ciphersuites(mbedtls_ssl_config *conf, + const int *ciphersuites) { conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = ciphersuites; conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = ciphersuites; @@ -4317,68 +4206,69 @@ void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf, conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = ciphersuites; } -void mbedtls_ssl_conf_ciphersuites_for_version( mbedtls_ssl_config *conf, - const int *ciphersuites, - int major, int minor ) +void mbedtls_ssl_conf_ciphersuites_for_version(mbedtls_ssl_config *conf, + const int *ciphersuites, + int major, int minor) { - if( major != MBEDTLS_SSL_MAJOR_VERSION_3 ) + if (major != MBEDTLS_SSL_MAJOR_VERSION_3) { return; + } - if( minor < MBEDTLS_SSL_MINOR_VERSION_0 || minor > MBEDTLS_SSL_MINOR_VERSION_3 ) + if (minor < MBEDTLS_SSL_MINOR_VERSION_0 || minor > MBEDTLS_SSL_MINOR_VERSION_3) { return; + } conf->ciphersuite_list[minor] = ciphersuites; } #if defined(MBEDTLS_X509_CRT_PARSE_C) -void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf, - const mbedtls_x509_crt_profile *profile ) +void mbedtls_ssl_conf_cert_profile(mbedtls_ssl_config *conf, + const mbedtls_x509_crt_profile *profile) { conf->cert_profile = profile; } /* Append a new keycert entry to a (possibly empty) list */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_append_key_cert( mbedtls_ssl_key_cert **head, - mbedtls_x509_crt *cert, - mbedtls_pk_context *key ) +static int ssl_append_key_cert(mbedtls_ssl_key_cert **head, + mbedtls_x509_crt *cert, + mbedtls_pk_context *key) { mbedtls_ssl_key_cert *new_cert; - new_cert = mbedtls_calloc( 1, sizeof( mbedtls_ssl_key_cert ) ); - if( new_cert == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + new_cert = mbedtls_calloc(1, sizeof(mbedtls_ssl_key_cert)); + if (new_cert == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } new_cert->cert = cert; new_cert->key = key; new_cert->next = NULL; /* Update head is the list was null, else add to the end */ - if( *head == NULL ) - { + if (*head == NULL) { *head = new_cert; - } - else - { + } else { mbedtls_ssl_key_cert *cur = *head; - while( cur->next != NULL ) + while (cur->next != NULL) { cur = cur->next; + } cur->next = new_cert; } - return( 0 ); + return 0; } -int mbedtls_ssl_conf_own_cert( mbedtls_ssl_config *conf, +int mbedtls_ssl_conf_own_cert(mbedtls_ssl_config *conf, mbedtls_x509_crt *own_cert, - mbedtls_pk_context *pk_key ) + mbedtls_pk_context *pk_key) { - return( ssl_append_key_cert( &conf->key_cert, own_cert, pk_key ) ); + return ssl_append_key_cert(&conf->key_cert, own_cert, pk_key); } -void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *conf, +void mbedtls_ssl_conf_ca_chain(mbedtls_ssl_config *conf, mbedtls_x509_crt *ca_chain, - mbedtls_x509_crl *ca_crl ) + mbedtls_x509_crl *ca_crl) { conf->ca_chain = ca_chain; conf->ca_crl = ca_crl; @@ -4392,9 +4282,9 @@ void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *conf, } #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK) -void mbedtls_ssl_conf_ca_cb( mbedtls_ssl_config *conf, - mbedtls_x509_crt_ca_cb_t f_ca_cb, - void *p_ca_cb ) +void mbedtls_ssl_conf_ca_cb(mbedtls_ssl_config *conf, + mbedtls_x509_crt_ca_cb_t f_ca_cb, + void *p_ca_cb) { conf->f_ca_cb = f_ca_cb; conf->p_ca_cb = p_ca_cb; @@ -4408,33 +4298,33 @@ void mbedtls_ssl_conf_ca_cb( mbedtls_ssl_config *conf, #endif /* MBEDTLS_X509_CRT_PARSE_C */ #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) -int mbedtls_ssl_set_hs_own_cert( mbedtls_ssl_context *ssl, - mbedtls_x509_crt *own_cert, - mbedtls_pk_context *pk_key ) +int mbedtls_ssl_set_hs_own_cert(mbedtls_ssl_context *ssl, + mbedtls_x509_crt *own_cert, + mbedtls_pk_context *pk_key) { - return( ssl_append_key_cert( &ssl->handshake->sni_key_cert, - own_cert, pk_key ) ); + return ssl_append_key_cert(&ssl->handshake->sni_key_cert, + own_cert, pk_key); } -void mbedtls_ssl_set_hs_ca_chain( mbedtls_ssl_context *ssl, - mbedtls_x509_crt *ca_chain, - mbedtls_x509_crl *ca_crl ) +void mbedtls_ssl_set_hs_ca_chain(mbedtls_ssl_context *ssl, + mbedtls_x509_crt *ca_chain, + mbedtls_x509_crl *ca_crl) { ssl->handshake->sni_ca_chain = ca_chain; ssl->handshake->sni_ca_crl = ca_crl; } -void mbedtls_ssl_set_hs_authmode( mbedtls_ssl_context *ssl, - int authmode ) +void mbedtls_ssl_set_hs_authmode(mbedtls_ssl_context *ssl, + int authmode) { ssl->handshake->sni_authmode = authmode; } #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ #if defined(MBEDTLS_X509_CRT_PARSE_C) -void mbedtls_ssl_set_verify( mbedtls_ssl_context *ssl, - int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), - void *p_vrfy ) +void mbedtls_ssl_set_verify(mbedtls_ssl_context *ssl, + int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *), + void *p_vrfy) { ssl->f_vrfy = f_vrfy; ssl->p_vrfy = p_vrfy; @@ -4445,36 +4335,37 @@ void mbedtls_ssl_set_verify( mbedtls_ssl_context *ssl, /* * Set EC J-PAKE password for current handshake */ -int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *ssl, - const unsigned char *pw, - size_t pw_len ) +int mbedtls_ssl_set_hs_ecjpake_password(mbedtls_ssl_context *ssl, + const unsigned char *pw, + size_t pw_len) { mbedtls_ecjpake_role role; - if( ssl->handshake == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->handshake == NULL || ssl->conf == NULL) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) { role = MBEDTLS_ECJPAKE_SERVER; - else + } else { role = MBEDTLS_ECJPAKE_CLIENT; + } - return( mbedtls_ecjpake_setup( &ssl->handshake->ecjpake_ctx, - role, - MBEDTLS_MD_SHA256, - MBEDTLS_ECP_DP_SECP256R1, - pw, pw_len ) ); + return mbedtls_ecjpake_setup(&ssl->handshake->ecjpake_ctx, + role, + MBEDTLS_MD_SHA256, + MBEDTLS_ECP_DP_SECP256R1, + pw, pw_len); } #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */ #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) -static void ssl_conf_remove_psk( mbedtls_ssl_config *conf ) +static void ssl_conf_remove_psk(mbedtls_ssl_config *conf) { /* Remove reference to existing PSK, if any. */ #if defined(MBEDTLS_USE_PSA_CRYPTO) - if( ! mbedtls_svc_key_id_is_null( conf->psk_opaque ) ) - { + if (!mbedtls_svc_key_id_is_null(conf->psk_opaque)) { /* The maintenance of the PSK key slot is the * user's responsibility. */ conf->psk_opaque = MBEDTLS_SVC_KEY_ID_INIT; @@ -4485,19 +4376,17 @@ static void ssl_conf_remove_psk( mbedtls_ssl_config *conf ) * configured simultaneously. As a safeguard, * though, `else` is omitted here. */ #endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( conf->psk != NULL ) - { - mbedtls_platform_zeroize( conf->psk, conf->psk_len ); + if (conf->psk != NULL) { + mbedtls_platform_zeroize(conf->psk, conf->psk_len); - mbedtls_free( conf->psk ); + mbedtls_free(conf->psk); conf->psk = NULL; conf->psk_len = 0; } /* Remove reference to PSK identity, if any. */ - if( conf->psk_identity != NULL ) - { - mbedtls_free( conf->psk_identity ); + if (conf->psk_identity != NULL) { + mbedtls_free(conf->psk_identity); conf->psk_identity = NULL; conf->psk_identity_len = 0; } @@ -4508,136 +4397,144 @@ static void ssl_conf_remove_psk( mbedtls_ssl_config *conf ) * to make a copy of it in the SSL config. * On failure, the PSK identity in the config remains unset. */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_conf_set_psk_identity( mbedtls_ssl_config *conf, - unsigned char const *psk_identity, - size_t psk_identity_len ) +static int ssl_conf_set_psk_identity(mbedtls_ssl_config *conf, + unsigned char const *psk_identity, + size_t psk_identity_len) { /* Identity len will be encoded on two bytes */ - if( psk_identity == NULL || - ( psk_identity_len >> 16 ) != 0 || - psk_identity_len > MBEDTLS_SSL_OUT_CONTENT_LEN ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (psk_identity == NULL || + (psk_identity_len >> 16) != 0 || + psk_identity_len > MBEDTLS_SSL_OUT_CONTENT_LEN) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - conf->psk_identity = mbedtls_calloc( 1, psk_identity_len ); - if( conf->psk_identity == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + conf->psk_identity = mbedtls_calloc(1, psk_identity_len); + if (conf->psk_identity == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } conf->psk_identity_len = psk_identity_len; - memcpy( conf->psk_identity, psk_identity, conf->psk_identity_len ); + memcpy(conf->psk_identity, psk_identity, conf->psk_identity_len); - return( 0 ); + return 0; } -int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf, - const unsigned char *psk, size_t psk_len, - const unsigned char *psk_identity, size_t psk_identity_len ) +int mbedtls_ssl_conf_psk(mbedtls_ssl_config *conf, + const unsigned char *psk, size_t psk_len, + const unsigned char *psk_identity, size_t psk_identity_len) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; /* Remove opaque/raw PSK + PSK Identity */ - ssl_conf_remove_psk( conf ); + ssl_conf_remove_psk(conf); /* Check and set raw PSK */ - if( psk == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - if( psk_len == 0 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - if( psk_len > MBEDTLS_PSK_MAX_LEN ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - if( ( conf->psk = mbedtls_calloc( 1, psk_len ) ) == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + if (psk == NULL) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } + if (psk_len == 0) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } + if (psk_len > MBEDTLS_PSK_MAX_LEN) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } + + if ((conf->psk = mbedtls_calloc(1, psk_len)) == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } conf->psk_len = psk_len; - memcpy( conf->psk, psk, conf->psk_len ); + memcpy(conf->psk, psk, conf->psk_len); /* Check and set PSK Identity */ - ret = ssl_conf_set_psk_identity( conf, psk_identity, psk_identity_len ); - if( ret != 0 ) - ssl_conf_remove_psk( conf ); + ret = ssl_conf_set_psk_identity(conf, psk_identity, psk_identity_len); + if (ret != 0) { + ssl_conf_remove_psk(conf); + } - return( ret ); + return ret; } -static void ssl_remove_psk( mbedtls_ssl_context *ssl ) +static void ssl_remove_psk(mbedtls_ssl_context *ssl) { #if defined(MBEDTLS_USE_PSA_CRYPTO) - if( ! mbedtls_svc_key_id_is_null( ssl->handshake->psk_opaque ) ) - { + if (!mbedtls_svc_key_id_is_null(ssl->handshake->psk_opaque)) { ssl->handshake->psk_opaque = MBEDTLS_SVC_KEY_ID_INIT; - } - else + } else #endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( ssl->handshake->psk != NULL ) - { - mbedtls_platform_zeroize( ssl->handshake->psk, - ssl->handshake->psk_len ); - mbedtls_free( ssl->handshake->psk ); + if (ssl->handshake->psk != NULL) { + mbedtls_platform_zeroize(ssl->handshake->psk, + ssl->handshake->psk_len); + mbedtls_free(ssl->handshake->psk); ssl->handshake->psk_len = 0; } } -int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *ssl, - const unsigned char *psk, size_t psk_len ) +int mbedtls_ssl_set_hs_psk(mbedtls_ssl_context *ssl, + const unsigned char *psk, size_t psk_len) { - if( psk == NULL || ssl->handshake == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (psk == NULL || ssl->handshake == NULL) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - if( psk_len > MBEDTLS_PSK_MAX_LEN ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (psk_len > MBEDTLS_PSK_MAX_LEN) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - ssl_remove_psk( ssl ); + ssl_remove_psk(ssl); - if( ( ssl->handshake->psk = mbedtls_calloc( 1, psk_len ) ) == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + if ((ssl->handshake->psk = mbedtls_calloc(1, psk_len)) == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } ssl->handshake->psk_len = psk_len; - memcpy( ssl->handshake->psk, psk, ssl->handshake->psk_len ); + memcpy(ssl->handshake->psk, psk, ssl->handshake->psk_len); - return( 0 ); + return 0; } #if defined(MBEDTLS_USE_PSA_CRYPTO) -int mbedtls_ssl_conf_psk_opaque( mbedtls_ssl_config *conf, - psa_key_id_t psk, - const unsigned char *psk_identity, - size_t psk_identity_len ) +int mbedtls_ssl_conf_psk_opaque(mbedtls_ssl_config *conf, + psa_key_id_t psk, + const unsigned char *psk_identity, + size_t psk_identity_len) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; /* Clear opaque/raw PSK + PSK Identity, if present. */ - ssl_conf_remove_psk( conf ); + ssl_conf_remove_psk(conf); /* Check and set opaque PSK */ - if( mbedtls_svc_key_id_is_null( psk ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (mbedtls_svc_key_id_is_null(psk)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } conf->psk_opaque = psk; /* Check and set PSK Identity */ - ret = ssl_conf_set_psk_identity( conf, psk_identity, - psk_identity_len ); - if( ret != 0 ) - ssl_conf_remove_psk( conf ); + ret = ssl_conf_set_psk_identity(conf, psk_identity, + psk_identity_len); + if (ret != 0) { + ssl_conf_remove_psk(conf); + } - return( ret ); + return ret; } -int mbedtls_ssl_set_hs_psk_opaque( mbedtls_ssl_context *ssl, - psa_key_id_t psk ) +int mbedtls_ssl_set_hs_psk_opaque(mbedtls_ssl_context *ssl, + psa_key_id_t psk) { - if( ( mbedtls_svc_key_id_is_null( psk ) ) || - ( ssl->handshake == NULL ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((mbedtls_svc_key_id_is_null(psk)) || + (ssl->handshake == NULL)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - ssl_remove_psk( ssl ); + ssl_remove_psk(ssl); ssl->handshake->psk_opaque = psk; - return( 0 ); + return 0; } #endif /* MBEDTLS_USE_PSA_CRYPTO */ -void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *conf, - int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, - size_t), - void *p_psk ) +void mbedtls_ssl_conf_psk_cb(mbedtls_ssl_config *conf, + int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, + size_t), + void *p_psk) { conf->f_psk = f_psk; conf->p_psk = p_psk; @@ -4647,58 +4544,55 @@ void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *conf, #if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) #if !defined(MBEDTLS_DEPRECATED_REMOVED) -int mbedtls_ssl_conf_dh_param( mbedtls_ssl_config *conf, const char *dhm_P, const char *dhm_G ) +int mbedtls_ssl_conf_dh_param(mbedtls_ssl_config *conf, const char *dhm_P, const char *dhm_G) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - if( ( ret = mbedtls_mpi_read_string( &conf->dhm_P, 16, dhm_P ) ) != 0 || - ( ret = mbedtls_mpi_read_string( &conf->dhm_G, 16, dhm_G ) ) != 0 ) - { - mbedtls_mpi_free( &conf->dhm_P ); - mbedtls_mpi_free( &conf->dhm_G ); - return( ret ); + if ((ret = mbedtls_mpi_read_string(&conf->dhm_P, 16, dhm_P)) != 0 || + (ret = mbedtls_mpi_read_string(&conf->dhm_G, 16, dhm_G)) != 0) { + mbedtls_mpi_free(&conf->dhm_P); + mbedtls_mpi_free(&conf->dhm_G); + return ret; } - return( 0 ); + return 0; } #endif /* MBEDTLS_DEPRECATED_REMOVED */ -int mbedtls_ssl_conf_dh_param_bin( mbedtls_ssl_config *conf, - const unsigned char *dhm_P, size_t P_len, - const unsigned char *dhm_G, size_t G_len ) +int mbedtls_ssl_conf_dh_param_bin(mbedtls_ssl_config *conf, + const unsigned char *dhm_P, size_t P_len, + const unsigned char *dhm_G, size_t G_len) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - mbedtls_mpi_free( &conf->dhm_P ); - mbedtls_mpi_free( &conf->dhm_G ); + mbedtls_mpi_free(&conf->dhm_P); + mbedtls_mpi_free(&conf->dhm_G); - if( ( ret = mbedtls_mpi_read_binary( &conf->dhm_P, dhm_P, P_len ) ) != 0 || - ( ret = mbedtls_mpi_read_binary( &conf->dhm_G, dhm_G, G_len ) ) != 0 ) - { - mbedtls_mpi_free( &conf->dhm_P ); - mbedtls_mpi_free( &conf->dhm_G ); - return( ret ); + if ((ret = mbedtls_mpi_read_binary(&conf->dhm_P, dhm_P, P_len)) != 0 || + (ret = mbedtls_mpi_read_binary(&conf->dhm_G, dhm_G, G_len)) != 0) { + mbedtls_mpi_free(&conf->dhm_P); + mbedtls_mpi_free(&conf->dhm_G); + return ret; } - return( 0 ); + return 0; } -int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx ) +int mbedtls_ssl_conf_dh_param_ctx(mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - mbedtls_mpi_free( &conf->dhm_P ); - mbedtls_mpi_free( &conf->dhm_G ); + mbedtls_mpi_free(&conf->dhm_P); + mbedtls_mpi_free(&conf->dhm_G); - if( ( ret = mbedtls_mpi_copy( &conf->dhm_P, &dhm_ctx->P ) ) != 0 || - ( ret = mbedtls_mpi_copy( &conf->dhm_G, &dhm_ctx->G ) ) != 0 ) - { - mbedtls_mpi_free( &conf->dhm_P ); - mbedtls_mpi_free( &conf->dhm_G ); - return( ret ); + if ((ret = mbedtls_mpi_copy(&conf->dhm_P, &dhm_ctx->P)) != 0 || + (ret = mbedtls_mpi_copy(&conf->dhm_G, &dhm_ctx->G)) != 0) { + mbedtls_mpi_free(&conf->dhm_P); + mbedtls_mpi_free(&conf->dhm_G); + return ret; } - return( 0 ); + return 0; } #endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_SRV_C */ @@ -4706,8 +4600,8 @@ int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context /* * Set the minimum length for Diffie-Hellman parameters */ -void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *conf, - unsigned int bitlen ) +void mbedtls_ssl_conf_dhm_min_bitlen(mbedtls_ssl_config *conf, + unsigned int bitlen) { conf->dhm_min_bitlen = bitlen; } @@ -4717,8 +4611,8 @@ void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *conf, /* * Set allowed/preferred hashes for handshake signatures */ -void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf, - const int *hashes ) +void mbedtls_ssl_conf_sig_hashes(mbedtls_ssl_config *conf, + const int *hashes) { conf->sig_hashes = hashes; } @@ -4728,64 +4622,61 @@ void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf, /* * Set the allowed elliptic curves */ -void mbedtls_ssl_conf_curves( mbedtls_ssl_config *conf, - const mbedtls_ecp_group_id *curve_list ) +void mbedtls_ssl_conf_curves(mbedtls_ssl_config *conf, + const mbedtls_ecp_group_id *curve_list) { conf->curve_list = curve_list; } #endif /* MBEDTLS_ECP_C */ #if defined(MBEDTLS_X509_CRT_PARSE_C) -int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname ) +int mbedtls_ssl_set_hostname(mbedtls_ssl_context *ssl, const char *hostname) { /* Initialize to suppress unnecessary compiler warning */ size_t hostname_len = 0; /* Check if new hostname is valid before * making any change to current one */ - if( hostname != NULL ) - { - hostname_len = strlen( hostname ); + if (hostname != NULL) { + hostname_len = strlen(hostname); - if( hostname_len > MBEDTLS_SSL_MAX_HOST_NAME_LEN ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (hostname_len > MBEDTLS_SSL_MAX_HOST_NAME_LEN) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } } /* Now it's clear that we will overwrite the old hostname, * so we can free it safely */ - if( ssl->hostname != NULL ) - { - mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) ); - mbedtls_free( ssl->hostname ); + if (ssl->hostname != NULL) { + mbedtls_platform_zeroize(ssl->hostname, strlen(ssl->hostname)); + mbedtls_free(ssl->hostname); } /* Passing NULL as hostname shall clear the old one */ - if( hostname == NULL ) - { + if (hostname == NULL) { ssl->hostname = NULL; - } - else - { - ssl->hostname = mbedtls_calloc( 1, hostname_len + 1 ); - if( ssl->hostname == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + } else { + ssl->hostname = mbedtls_calloc(1, hostname_len + 1); + if (ssl->hostname == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } - memcpy( ssl->hostname, hostname, hostname_len ); + memcpy(ssl->hostname, hostname, hostname_len); ssl->hostname[hostname_len] = '\0'; } - return( 0 ); + return 0; } #endif /* MBEDTLS_X509_CRT_PARSE_C */ #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) -void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf, - int (*f_sni)(void *, mbedtls_ssl_context *, - const unsigned char *, size_t), - void *p_sni ) +void mbedtls_ssl_conf_sni(mbedtls_ssl_config *conf, + int (*f_sni)(void *, mbedtls_ssl_context *, + const unsigned char *, size_t), + void *p_sni) { conf->f_sni = f_sni; conf->p_sni = p_sni; @@ -4793,7 +4684,7 @@ void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf, #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */ #if defined(MBEDTLS_SSL_ALPN) -int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *conf, const char **protos ) +int mbedtls_ssl_conf_alpn_protocols(mbedtls_ssl_config *conf, const char **protos) { size_t cur_len, tot_len; const char **p; @@ -4804,221 +4695,210 @@ int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *conf, const char **prot * We check lengths now rather than later. */ tot_len = 0; - for( p = protos; *p != NULL; p++ ) - { - cur_len = strlen( *p ); + for (p = protos; *p != NULL; p++) { + cur_len = strlen(*p); tot_len += cur_len; - if( ( cur_len == 0 ) || - ( cur_len > MBEDTLS_SSL_MAX_ALPN_NAME_LEN ) || - ( tot_len > MBEDTLS_SSL_MAX_ALPN_LIST_LEN ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((cur_len == 0) || + (cur_len > MBEDTLS_SSL_MAX_ALPN_NAME_LEN) || + (tot_len > MBEDTLS_SSL_MAX_ALPN_LIST_LEN)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } } conf->alpn_list = protos; - return( 0 ); + return 0; } -const char *mbedtls_ssl_get_alpn_protocol( const mbedtls_ssl_context *ssl ) +const char *mbedtls_ssl_get_alpn_protocol(const mbedtls_ssl_context *ssl) { - return( ssl->alpn_chosen ); + return ssl->alpn_chosen; } #endif /* MBEDTLS_SSL_ALPN */ #if defined(MBEDTLS_SSL_DTLS_SRTP) -void mbedtls_ssl_conf_srtp_mki_value_supported( mbedtls_ssl_config *conf, - int support_mki_value ) +void mbedtls_ssl_conf_srtp_mki_value_supported(mbedtls_ssl_config *conf, + int support_mki_value) { conf->dtls_srtp_mki_support = support_mki_value; } -int mbedtls_ssl_dtls_srtp_set_mki_value( mbedtls_ssl_context *ssl, - unsigned char *mki_value, - uint16_t mki_len ) +int mbedtls_ssl_dtls_srtp_set_mki_value(mbedtls_ssl_context *ssl, + unsigned char *mki_value, + uint16_t mki_len) { - if( mki_len > MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (mki_len > MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - if( ssl->conf->dtls_srtp_mki_support == MBEDTLS_SSL_DTLS_SRTP_MKI_UNSUPPORTED ) - { - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + if (ssl->conf->dtls_srtp_mki_support == MBEDTLS_SSL_DTLS_SRTP_MKI_UNSUPPORTED) { + return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; } - memcpy( ssl->dtls_srtp_info.mki_value, mki_value, mki_len ); + memcpy(ssl->dtls_srtp_info.mki_value, mki_value, mki_len); ssl->dtls_srtp_info.mki_len = mki_len; - return( 0 ); + return 0; } -int mbedtls_ssl_conf_dtls_srtp_protection_profiles( mbedtls_ssl_config *conf, - const mbedtls_ssl_srtp_profile *profiles ) +int mbedtls_ssl_conf_dtls_srtp_protection_profiles(mbedtls_ssl_config *conf, + const mbedtls_ssl_srtp_profile *profiles) { const mbedtls_ssl_srtp_profile *p; size_t list_size = 0; /* check the profiles list: all entry must be valid, * its size cannot be more than the total number of supported profiles, currently 4 */ - for( p = profiles; *p != MBEDTLS_TLS_SRTP_UNSET && - list_size <= MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH; - p++ ) - { - if( mbedtls_ssl_check_srtp_profile_value( *p ) != MBEDTLS_TLS_SRTP_UNSET ) - { + for (p = profiles; *p != MBEDTLS_TLS_SRTP_UNSET && + list_size <= MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH; + p++) { + if (mbedtls_ssl_check_srtp_profile_value(*p) != MBEDTLS_TLS_SRTP_UNSET) { list_size++; - } - else - { + } else { /* unsupported value, stop parsing and set the size to an error value */ list_size = MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH + 1; } } - if( list_size > MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH ) - { - conf->dtls_srtp_profile_list = NULL; - conf->dtls_srtp_profile_list_len = 0; - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (list_size > MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH) { + conf->dtls_srtp_profile_list = NULL; + conf->dtls_srtp_profile_list_len = 0; + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } conf->dtls_srtp_profile_list = profiles; conf->dtls_srtp_profile_list_len = list_size; - return( 0 ); + return 0; } -void mbedtls_ssl_get_dtls_srtp_negotiation_result( const mbedtls_ssl_context *ssl, - mbedtls_dtls_srtp_info *dtls_srtp_info ) +void mbedtls_ssl_get_dtls_srtp_negotiation_result(const mbedtls_ssl_context *ssl, + mbedtls_dtls_srtp_info *dtls_srtp_info) { dtls_srtp_info->chosen_dtls_srtp_profile = ssl->dtls_srtp_info.chosen_dtls_srtp_profile; /* do not copy the mki value if there is no chosen profile */ - if( dtls_srtp_info->chosen_dtls_srtp_profile == MBEDTLS_TLS_SRTP_UNSET ) - { + if (dtls_srtp_info->chosen_dtls_srtp_profile == MBEDTLS_TLS_SRTP_UNSET) { dtls_srtp_info->mki_len = 0; - } - else - { + } else { dtls_srtp_info->mki_len = ssl->dtls_srtp_info.mki_len; - memcpy( dtls_srtp_info->mki_value, ssl->dtls_srtp_info.mki_value, - ssl->dtls_srtp_info.mki_len ); + memcpy(dtls_srtp_info->mki_value, ssl->dtls_srtp_info.mki_value, + ssl->dtls_srtp_info.mki_len); } } #endif /* MBEDTLS_SSL_DTLS_SRTP */ -void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *conf, int major, int minor ) +void mbedtls_ssl_conf_max_version(mbedtls_ssl_config *conf, int major, int minor) { conf->max_major_ver = major; conf->max_minor_ver = minor; } -void mbedtls_ssl_conf_min_version( mbedtls_ssl_config *conf, int major, int minor ) +void mbedtls_ssl_conf_min_version(mbedtls_ssl_config *conf, int major, int minor) { conf->min_major_ver = major; conf->min_minor_ver = minor; } #if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C) -void mbedtls_ssl_conf_fallback( mbedtls_ssl_config *conf, char fallback ) +void mbedtls_ssl_conf_fallback(mbedtls_ssl_config *conf, char fallback) { conf->fallback = fallback; } #endif #if defined(MBEDTLS_SSL_SRV_C) -void mbedtls_ssl_conf_cert_req_ca_list( mbedtls_ssl_config *conf, - char cert_req_ca_list ) +void mbedtls_ssl_conf_cert_req_ca_list(mbedtls_ssl_config *conf, + char cert_req_ca_list) { conf->cert_req_ca_list = cert_req_ca_list; } #endif #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) -void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm ) +void mbedtls_ssl_conf_encrypt_then_mac(mbedtls_ssl_config *conf, char etm) { conf->encrypt_then_mac = etm; } #endif #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) -void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems ) +void mbedtls_ssl_conf_extended_master_secret(mbedtls_ssl_config *conf, char ems) { conf->extended_ms = ems; } #endif #if defined(MBEDTLS_ARC4_C) -void mbedtls_ssl_conf_arc4_support( mbedtls_ssl_config *conf, char arc4 ) +void mbedtls_ssl_conf_arc4_support(mbedtls_ssl_config *conf, char arc4) { conf->arc4_disabled = arc4; } #endif #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -int mbedtls_ssl_conf_max_frag_len( mbedtls_ssl_config *conf, unsigned char mfl_code ) +int mbedtls_ssl_conf_max_frag_len(mbedtls_ssl_config *conf, unsigned char mfl_code) { - if( mfl_code >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID || - ssl_mfl_code_to_length( mfl_code ) > MBEDTLS_TLS_EXT_ADV_CONTENT_LEN ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (mfl_code >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID || + ssl_mfl_code_to_length(mfl_code) > MBEDTLS_TLS_EXT_ADV_CONTENT_LEN) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } conf->mfl_code = mfl_code; - return( 0 ); + return 0; } #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) -void mbedtls_ssl_conf_truncated_hmac( mbedtls_ssl_config *conf, int truncate ) +void mbedtls_ssl_conf_truncated_hmac(mbedtls_ssl_config *conf, int truncate) { conf->trunc_hmac = truncate; } #endif /* MBEDTLS_SSL_TRUNCATED_HMAC */ #if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) -void mbedtls_ssl_conf_cbc_record_splitting( mbedtls_ssl_config *conf, char split ) +void mbedtls_ssl_conf_cbc_record_splitting(mbedtls_ssl_config *conf, char split) { conf->cbc_record_splitting = split; } #endif -void mbedtls_ssl_conf_legacy_renegotiation( mbedtls_ssl_config *conf, int allow_legacy ) +void mbedtls_ssl_conf_legacy_renegotiation(mbedtls_ssl_config *conf, int allow_legacy) { conf->allow_legacy_renegotiation = allow_legacy; } #if defined(MBEDTLS_SSL_RENEGOTIATION) -void mbedtls_ssl_conf_renegotiation( mbedtls_ssl_config *conf, int renegotiation ) +void mbedtls_ssl_conf_renegotiation(mbedtls_ssl_config *conf, int renegotiation) { conf->disable_renegotiation = renegotiation; } -void mbedtls_ssl_conf_renegotiation_enforced( mbedtls_ssl_config *conf, int max_records ) +void mbedtls_ssl_conf_renegotiation_enforced(mbedtls_ssl_config *conf, int max_records) { conf->renego_max_records = max_records; } -void mbedtls_ssl_conf_renegotiation_period( mbedtls_ssl_config *conf, - const unsigned char period[8] ) +void mbedtls_ssl_conf_renegotiation_period(mbedtls_ssl_config *conf, + const unsigned char period[8]) { - memcpy( conf->renego_period, period, 8 ); + memcpy(conf->renego_period, period, 8); } #endif /* MBEDTLS_SSL_RENEGOTIATION */ #if defined(MBEDTLS_SSL_SESSION_TICKETS) #if defined(MBEDTLS_SSL_CLI_C) -void mbedtls_ssl_conf_session_tickets( mbedtls_ssl_config *conf, int use_tickets ) +void mbedtls_ssl_conf_session_tickets(mbedtls_ssl_config *conf, int use_tickets) { conf->session_tickets = use_tickets; } #endif #if defined(MBEDTLS_SSL_SRV_C) -void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *conf, - mbedtls_ssl_ticket_write_t *f_ticket_write, - mbedtls_ssl_ticket_parse_t *f_ticket_parse, - void *p_ticket ) +void mbedtls_ssl_conf_session_tickets_cb(mbedtls_ssl_config *conf, + mbedtls_ssl_ticket_write_t *f_ticket_write, + mbedtls_ssl_ticket_parse_t *f_ticket_parse, + void *p_ticket) { conf->f_ticket_write = f_ticket_write; conf->f_ticket_parse = f_ticket_parse; @@ -5028,17 +4908,17 @@ void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *conf, #endif /* MBEDTLS_SSL_SESSION_TICKETS */ #if defined(MBEDTLS_SSL_EXPORT_KEYS) -void mbedtls_ssl_conf_export_keys_cb( mbedtls_ssl_config *conf, - mbedtls_ssl_export_keys_t *f_export_keys, - void *p_export_keys ) +void mbedtls_ssl_conf_export_keys_cb(mbedtls_ssl_config *conf, + mbedtls_ssl_export_keys_t *f_export_keys, + void *p_export_keys) { conf->f_export_keys = f_export_keys; conf->p_export_keys = p_export_keys; } -void mbedtls_ssl_conf_export_keys_ext_cb( mbedtls_ssl_config *conf, - mbedtls_ssl_export_keys_ext_t *f_export_keys_ext, - void *p_export_keys ) +void mbedtls_ssl_conf_export_keys_ext_cb(mbedtls_ssl_config *conf, + mbedtls_ssl_export_keys_ext_t *f_export_keys_ext, + void *p_export_keys) { conf->f_export_keys_ext = f_export_keys_ext; conf->p_export_keys = p_export_keys; @@ -5052,7 +4932,7 @@ void mbedtls_ssl_conf_async_private_cb( mbedtls_ssl_async_decrypt_t *f_async_decrypt, mbedtls_ssl_async_resume_t *f_async_resume, mbedtls_ssl_async_cancel_t *f_async_cancel, - void *async_config_data ) + void *async_config_data) { conf->f_async_sign_start = f_async_sign; conf->f_async_decrypt_start = f_async_decrypt; @@ -5061,178 +4941,176 @@ void mbedtls_ssl_conf_async_private_cb( conf->p_async_config_data = async_config_data; } -void *mbedtls_ssl_conf_get_async_config_data( const mbedtls_ssl_config *conf ) +void *mbedtls_ssl_conf_get_async_config_data(const mbedtls_ssl_config *conf) { - return( conf->p_async_config_data ); + return conf->p_async_config_data; } -void *mbedtls_ssl_get_async_operation_data( const mbedtls_ssl_context *ssl ) +void *mbedtls_ssl_get_async_operation_data(const mbedtls_ssl_context *ssl) { - if( ssl->handshake == NULL ) - return( NULL ); - else - return( ssl->handshake->user_async_ctx ); + if (ssl->handshake == NULL) { + return NULL; + } else { + return ssl->handshake->user_async_ctx; + } } -void mbedtls_ssl_set_async_operation_data( mbedtls_ssl_context *ssl, - void *ctx ) +void mbedtls_ssl_set_async_operation_data(mbedtls_ssl_context *ssl, + void *ctx) { - if( ssl->handshake != NULL ) + if (ssl->handshake != NULL) { ssl->handshake->user_async_ctx = ctx; + } } #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ /* * SSL get accessors */ -uint32_t mbedtls_ssl_get_verify_result( const mbedtls_ssl_context *ssl ) +uint32_t mbedtls_ssl_get_verify_result(const mbedtls_ssl_context *ssl) { - if( ssl->session != NULL ) - return( ssl->session->verify_result ); + if (ssl->session != NULL) { + return ssl->session->verify_result; + } - if( ssl->session_negotiate != NULL ) - return( ssl->session_negotiate->verify_result ); + if (ssl->session_negotiate != NULL) { + return ssl->session_negotiate->verify_result; + } - return( 0xFFFFFFFF ); + return 0xFFFFFFFF; } -const char *mbedtls_ssl_get_ciphersuite( const mbedtls_ssl_context *ssl ) +const char *mbedtls_ssl_get_ciphersuite(const mbedtls_ssl_context *ssl) { - if( ssl == NULL || ssl->session == NULL ) - return( NULL ); + if (ssl == NULL || ssl->session == NULL) { + return NULL; + } - return mbedtls_ssl_get_ciphersuite_name( ssl->session->ciphersuite ); + return mbedtls_ssl_get_ciphersuite_name(ssl->session->ciphersuite); } -const char *mbedtls_ssl_get_version( const mbedtls_ssl_context *ssl ) +const char *mbedtls_ssl_get_version(const mbedtls_ssl_context *ssl) { #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - switch( ssl->minor_ver ) - { + if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) { + switch (ssl->minor_ver) { case MBEDTLS_SSL_MINOR_VERSION_2: - return( "DTLSv1.0" ); + return "DTLSv1.0"; case MBEDTLS_SSL_MINOR_VERSION_3: - return( "DTLSv1.2" ); + return "DTLSv1.2"; default: - return( "unknown (DTLS)" ); + return "unknown (DTLS)"; } } #endif - switch( ssl->minor_ver ) - { + switch (ssl->minor_ver) { case MBEDTLS_SSL_MINOR_VERSION_0: - return( "SSLv3.0" ); + return "SSLv3.0"; case MBEDTLS_SSL_MINOR_VERSION_1: - return( "TLSv1.0" ); + return "TLSv1.0"; case MBEDTLS_SSL_MINOR_VERSION_2: - return( "TLSv1.1" ); + return "TLSv1.1"; case MBEDTLS_SSL_MINOR_VERSION_3: - return( "TLSv1.2" ); + return "TLSv1.2"; default: - return( "unknown" ); + return "unknown"; } } #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) -size_t mbedtls_ssl_get_input_max_frag_len( const mbedtls_ssl_context *ssl ) +size_t mbedtls_ssl_get_input_max_frag_len(const mbedtls_ssl_context *ssl) { size_t max_len = MBEDTLS_SSL_MAX_CONTENT_LEN; size_t read_mfl; /* Use the configured MFL for the client if we're past SERVER_HELLO_DONE */ - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT && - ssl->state >= MBEDTLS_SSL_SERVER_HELLO_DONE ) - { - return ssl_mfl_code_to_length( ssl->conf->mfl_code ); + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT && + ssl->state >= MBEDTLS_SSL_SERVER_HELLO_DONE) { + return ssl_mfl_code_to_length(ssl->conf->mfl_code); } /* Check if a smaller max length was negotiated */ - if( ssl->session_out != NULL ) - { - read_mfl = ssl_mfl_code_to_length( ssl->session_out->mfl_code ); - if( read_mfl < max_len ) - { + if (ssl->session_out != NULL) { + read_mfl = ssl_mfl_code_to_length(ssl->session_out->mfl_code); + if (read_mfl < max_len) { max_len = read_mfl; } } // During a handshake, use the value being negotiated - if( ssl->session_negotiate != NULL ) - { - read_mfl = ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code ); - if( read_mfl < max_len ) - { + if (ssl->session_negotiate != NULL) { + read_mfl = ssl_mfl_code_to_length(ssl->session_negotiate->mfl_code); + if (read_mfl < max_len) { max_len = read_mfl; } } - return( max_len ); + return max_len; } -size_t mbedtls_ssl_get_output_max_frag_len( const mbedtls_ssl_context *ssl ) +size_t mbedtls_ssl_get_output_max_frag_len(const mbedtls_ssl_context *ssl) { size_t max_len; /* * Assume mfl_code is correct since it was checked when set */ - max_len = ssl_mfl_code_to_length( ssl->conf->mfl_code ); + max_len = ssl_mfl_code_to_length(ssl->conf->mfl_code); /* Check if a smaller max length was negotiated */ - if( ssl->session_out != NULL && - ssl_mfl_code_to_length( ssl->session_out->mfl_code ) < max_len ) - { - max_len = ssl_mfl_code_to_length( ssl->session_out->mfl_code ); + if (ssl->session_out != NULL && + ssl_mfl_code_to_length(ssl->session_out->mfl_code) < max_len) { + max_len = ssl_mfl_code_to_length(ssl->session_out->mfl_code); } /* During a handshake, use the value being negotiated */ - if( ssl->session_negotiate != NULL && - ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code ) < max_len ) - { - max_len = ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code ); + if (ssl->session_negotiate != NULL && + ssl_mfl_code_to_length(ssl->session_negotiate->mfl_code) < max_len) { + max_len = ssl_mfl_code_to_length(ssl->session_negotiate->mfl_code); } - return( max_len ); + return max_len; } #if !defined(MBEDTLS_DEPRECATED_REMOVED) -size_t mbedtls_ssl_get_max_frag_len( const mbedtls_ssl_context *ssl ) +size_t mbedtls_ssl_get_max_frag_len(const mbedtls_ssl_context *ssl) { - return mbedtls_ssl_get_output_max_frag_len( ssl ); + return mbedtls_ssl_get_output_max_frag_len(ssl); } #endif /* !MBEDTLS_DEPRECATED_REMOVED */ #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ #if defined(MBEDTLS_SSL_PROTO_DTLS) -size_t mbedtls_ssl_get_current_mtu( const mbedtls_ssl_context *ssl ) +size_t mbedtls_ssl_get_current_mtu(const mbedtls_ssl_context *ssl) { /* Return unlimited mtu for client hello messages to avoid fragmentation. */ - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT && - ( ssl->state == MBEDTLS_SSL_CLIENT_HELLO || - ssl->state == MBEDTLS_SSL_SERVER_HELLO ) ) - return ( 0 ); + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT && + (ssl->state == MBEDTLS_SSL_CLIENT_HELLO || + ssl->state == MBEDTLS_SSL_SERVER_HELLO)) { + return 0; + } - if( ssl->handshake == NULL || ssl->handshake->mtu == 0 ) - return( ssl->mtu ); + if (ssl->handshake == NULL || ssl->handshake->mtu == 0) { + return ssl->mtu; + } - if( ssl->mtu == 0 ) - return( ssl->handshake->mtu ); + if (ssl->mtu == 0) { + return ssl->handshake->mtu; + } - return( ssl->mtu < ssl->handshake->mtu ? - ssl->mtu : ssl->handshake->mtu ); + return ssl->mtu < ssl->handshake->mtu ? + ssl->mtu : ssl->handshake->mtu; } #endif /* MBEDTLS_SSL_PROTO_DTLS */ -int mbedtls_ssl_get_max_out_record_payload( const mbedtls_ssl_context *ssl ) +int mbedtls_ssl_get_max_out_record_payload(const mbedtls_ssl_context *ssl) { size_t max_len = MBEDTLS_SSL_OUT_CONTENT_LEN; @@ -5242,30 +5120,31 @@ int mbedtls_ssl_get_max_out_record_payload( const mbedtls_ssl_context *ssl ) #endif #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) - const size_t mfl = mbedtls_ssl_get_output_max_frag_len( ssl ); + const size_t mfl = mbedtls_ssl_get_output_max_frag_len(ssl); - if( max_len > mfl ) + if (max_len > mfl) { max_len = mfl; + } #endif #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( mbedtls_ssl_get_current_mtu( ssl ) != 0 ) - { - const size_t mtu = mbedtls_ssl_get_current_mtu( ssl ); - const int ret = mbedtls_ssl_get_record_expansion( ssl ); + if (mbedtls_ssl_get_current_mtu(ssl) != 0) { + const size_t mtu = mbedtls_ssl_get_current_mtu(ssl); + const int ret = mbedtls_ssl_get_record_expansion(ssl); const size_t overhead = (size_t) ret; - if( ret < 0 ) - return( ret ); + if (ret < 0) { + return ret; + } - if( mtu <= overhead ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "MTU too low for record expansion" ) ); - return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); + if (mtu <= overhead) { + MBEDTLS_SSL_DEBUG_MSG(1, ("MTU too low for record expansion")); + return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; } - if( max_len > mtu - overhead ) + if (max_len > mtu - overhead) { max_len = mtu - overhead; + } } #endif /* MBEDTLS_SSL_PROTO_DTLS */ @@ -5274,45 +5153,46 @@ int mbedtls_ssl_get_max_out_record_payload( const mbedtls_ssl_context *ssl ) ((void) ssl); #endif - return( (int) max_len ); + return (int) max_len; } #if defined(MBEDTLS_X509_CRT_PARSE_C) -const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert( const mbedtls_ssl_context *ssl ) +const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert(const mbedtls_ssl_context *ssl) { - if( ssl == NULL || ssl->session == NULL ) - return( NULL ); + if (ssl == NULL || ssl->session == NULL) { + return NULL; + } #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - return( ssl->session->peer_cert ); + return ssl->session->peer_cert; #else - return( NULL ); + return NULL; #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ } #endif /* MBEDTLS_X509_CRT_PARSE_C */ #if defined(MBEDTLS_SSL_CLI_C) -int mbedtls_ssl_get_session( const mbedtls_ssl_context *ssl, - mbedtls_ssl_session *dst ) +int mbedtls_ssl_get_session(const mbedtls_ssl_context *ssl, + mbedtls_ssl_session *dst) { - if( ssl == NULL || + if (ssl == NULL || dst == NULL || ssl->session == NULL || - ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - return( mbedtls_ssl_session_copy( dst, ssl->session ) ); + return mbedtls_ssl_session_copy(dst, ssl->session); } #endif /* MBEDTLS_SSL_CLI_C */ -const mbedtls_ssl_session *mbedtls_ssl_get_session_pointer( const mbedtls_ssl_context *ssl ) +const mbedtls_ssl_session *mbedtls_ssl_get_session_pointer(const mbedtls_ssl_context *ssl) { - if( ssl == NULL ) - return( NULL ); + if (ssl == NULL) { + return NULL; + } - return( ssl->session ); + return ssl->session; } /* @@ -5376,21 +5256,23 @@ const mbedtls_ssl_session *mbedtls_ssl_get_session_pointer( const mbedtls_ssl_co #define SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT 6 #define SSL_SERIALIZED_SESSION_CONFIG_BITFLAG \ - ( (uint16_t) ( \ - ( SSL_SERIALIZED_SESSION_CONFIG_TIME << SSL_SERIALIZED_SESSION_CONFIG_TIME_BIT ) | \ - ( SSL_SERIALIZED_SESSION_CONFIG_CRT << SSL_SERIALIZED_SESSION_CONFIG_CRT_BIT ) | \ - ( SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET << SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET_BIT ) | \ - ( SSL_SERIALIZED_SESSION_CONFIG_MFL << SSL_SERIALIZED_SESSION_CONFIG_MFL_BIT ) | \ - ( SSL_SERIALIZED_SESSION_CONFIG_TRUNC_HMAC << SSL_SERIALIZED_SESSION_CONFIG_TRUNC_HMAC_BIT ) | \ - ( SSL_SERIALIZED_SESSION_CONFIG_ETM << SSL_SERIALIZED_SESSION_CONFIG_ETM_BIT ) | \ - ( SSL_SERIALIZED_SESSION_CONFIG_TICKET << SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT ) ) ) + ((uint16_t) ( \ + (SSL_SERIALIZED_SESSION_CONFIG_TIME << SSL_SERIALIZED_SESSION_CONFIG_TIME_BIT) | \ + (SSL_SERIALIZED_SESSION_CONFIG_CRT << SSL_SERIALIZED_SESSION_CONFIG_CRT_BIT) | \ + (SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET << \ + SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET_BIT) | \ + (SSL_SERIALIZED_SESSION_CONFIG_MFL << SSL_SERIALIZED_SESSION_CONFIG_MFL_BIT) | \ + (SSL_SERIALIZED_SESSION_CONFIG_TRUNC_HMAC << \ + SSL_SERIALIZED_SESSION_CONFIG_TRUNC_HMAC_BIT) | \ + (SSL_SERIALIZED_SESSION_CONFIG_ETM << SSL_SERIALIZED_SESSION_CONFIG_ETM_BIT) | \ + (SSL_SERIALIZED_SESSION_CONFIG_TICKET << SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT))) static unsigned char ssl_serialized_session_header[] = { MBEDTLS_VERSION_MAJOR, MBEDTLS_VERSION_MINOR, MBEDTLS_VERSION_PATCH, - MBEDTLS_BYTE_1( SSL_SERIALIZED_SESSION_CONFIG_BITFLAG ), - MBEDTLS_BYTE_0( SSL_SERIALIZED_SESSION_CONFIG_BITFLAG ), + MBEDTLS_BYTE_1(SSL_SERIALIZED_SESSION_CONFIG_BITFLAG), + MBEDTLS_BYTE_0(SSL_SERIALIZED_SESSION_CONFIG_BITFLAG), }; /* @@ -5428,11 +5310,11 @@ static unsigned char ssl_serialized_session_header[] = { * together in one block. */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_session_save( const mbedtls_ssl_session *session, - unsigned char omit_header, - unsigned char *buf, - size_t buf_len, - size_t *olen ) +static int ssl_session_save(const mbedtls_ssl_session *session, + unsigned char omit_header, + unsigned char *buf, + size_t buf_len, + size_t *olen) { unsigned char *p = buf; size_t used = 0; @@ -5446,19 +5328,17 @@ static int ssl_session_save( const mbedtls_ssl_session *session, #endif /* MBEDTLS_X509_CRT_PARSE_C */ - if( !omit_header ) - { + if (!omit_header) { /* * Add version identifier */ - used += sizeof( ssl_serialized_session_header ); + used += sizeof(ssl_serialized_session_header); - if( used <= buf_len ) - { - memcpy( p, ssl_serialized_session_header, - sizeof( ssl_serialized_session_header ) ); - p += sizeof( ssl_serialized_session_header ); + if (used <= buf_len) { + memcpy(p, ssl_serialized_session_header, + sizeof(ssl_serialized_session_header)); + p += sizeof(ssl_serialized_session_header); } } @@ -5468,11 +5348,10 @@ static int ssl_session_save( const mbedtls_ssl_session *session, #if defined(MBEDTLS_HAVE_TIME) used += 8; - if( used <= buf_len ) - { + if (used <= buf_len) { start = (uint64_t) session->start; - MBEDTLS_PUT_UINT64_BE( start, p, 0 ); + MBEDTLS_PUT_UINT64_BE(start, p, 0); p += 8; } #endif /* MBEDTLS_HAVE_TIME */ @@ -5481,27 +5360,26 @@ static int ssl_session_save( const mbedtls_ssl_session *session, * Basic mandatory fields */ used += 2 /* ciphersuite */ - + 1 /* compression */ - + 1 /* id_len */ - + sizeof( session->id ) - + sizeof( session->master ) - + 4; /* verify_result */ - - if( used <= buf_len ) - { - MBEDTLS_PUT_UINT16_BE( session->ciphersuite, p, 0 ); + + 1 /* compression */ + + 1 /* id_len */ + + sizeof(session->id) + + sizeof(session->master) + + 4; /* verify_result */ + + if (used <= buf_len) { + MBEDTLS_PUT_UINT16_BE(session->ciphersuite, p, 0); p += 2; - *p++ = MBEDTLS_BYTE_0( session->compression ); + *p++ = MBEDTLS_BYTE_0(session->compression); - *p++ = MBEDTLS_BYTE_0( session->id_len ); - memcpy( p, session->id, 32 ); + *p++ = MBEDTLS_BYTE_0(session->id_len); + memcpy(p, session->id, 32); p += 32; - memcpy( p, session->master, 48 ); + memcpy(p, session->master, 48); p += 48; - MBEDTLS_PUT_UINT32_BE( session->verify_result, p, 0 ); + MBEDTLS_PUT_UINT32_BE(session->verify_result, p, 0); p += 4; } @@ -5510,43 +5388,37 @@ static int ssl_session_save( const mbedtls_ssl_session *session, */ #if defined(MBEDTLS_X509_CRT_PARSE_C) #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - if( session->peer_cert == NULL ) + if (session->peer_cert == NULL) { cert_len = 0; - else + } else { cert_len = session->peer_cert->raw.len; + } used += 3 + cert_len; - if( used <= buf_len ) - { - *p++ = MBEDTLS_BYTE_2( cert_len ); - *p++ = MBEDTLS_BYTE_1( cert_len ); - *p++ = MBEDTLS_BYTE_0( cert_len ); + if (used <= buf_len) { + *p++ = MBEDTLS_BYTE_2(cert_len); + *p++ = MBEDTLS_BYTE_1(cert_len); + *p++ = MBEDTLS_BYTE_0(cert_len); - if( session->peer_cert != NULL ) - { - memcpy( p, session->peer_cert->raw.p, cert_len ); + if (session->peer_cert != NULL) { + memcpy(p, session->peer_cert->raw.p, cert_len); p += cert_len; } } #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ - if( session->peer_cert_digest != NULL ) - { + if (session->peer_cert_digest != NULL) { used += 1 /* type */ + 1 /* length */ + session->peer_cert_digest_len; - if( used <= buf_len ) - { + if (used <= buf_len) { *p++ = (unsigned char) session->peer_cert_digest_type; *p++ = (unsigned char) session->peer_cert_digest_len; - memcpy( p, session->peer_cert_digest, - session->peer_cert_digest_len ); + memcpy(p, session->peer_cert_digest, + session->peer_cert_digest_len); p += session->peer_cert_digest_len; } - } - else - { + } else { used += 2; - if( used <= buf_len ) - { + if (used <= buf_len) { *p++ = (unsigned char) MBEDTLS_MD_NONE; *p++ = 0; } @@ -5560,19 +5432,17 @@ static int ssl_session_save( const mbedtls_ssl_session *session, #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) used += 3 + session->ticket_len + 4; /* len + ticket + lifetime */ - if( used <= buf_len ) - { - *p++ = MBEDTLS_BYTE_2( session->ticket_len ); - *p++ = MBEDTLS_BYTE_1( session->ticket_len ); - *p++ = MBEDTLS_BYTE_0( session->ticket_len ); + if (used <= buf_len) { + *p++ = MBEDTLS_BYTE_2(session->ticket_len); + *p++ = MBEDTLS_BYTE_1(session->ticket_len); + *p++ = MBEDTLS_BYTE_0(session->ticket_len); - if( session->ticket != NULL ) - { - memcpy( p, session->ticket, session->ticket_len ); + if (session->ticket != NULL) { + memcpy(p, session->ticket, session->ticket_len); p += session->ticket_len; } - MBEDTLS_PUT_UINT32_BE( session->ticket_lifetime, p, 0 ); + MBEDTLS_PUT_UINT32_BE(session->ticket_lifetime, p, 0); p += 4; } #endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ @@ -5583,42 +5453,46 @@ static int ssl_session_save( const mbedtls_ssl_session *session, #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) used += 1; - if( used <= buf_len ) + if (used <= buf_len) { *p++ = session->mfl_code; + } #endif #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) used += 1; - if( used <= buf_len ) - *p++ = (unsigned char)( ( session->trunc_hmac ) & 0xFF ); + if (used <= buf_len) { + *p++ = (unsigned char) ((session->trunc_hmac) & 0xFF); + } #endif #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) used += 1; - if( used <= buf_len ) - *p++ = MBEDTLS_BYTE_0( session->encrypt_then_mac ); + if (used <= buf_len) { + *p++ = MBEDTLS_BYTE_0(session->encrypt_then_mac); + } #endif /* Done */ *olen = used; - if( used > buf_len ) - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + if (used > buf_len) { + return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL; + } - return( 0 ); + return 0; } /* * Public wrapper for ssl_session_save() */ -int mbedtls_ssl_session_save( const mbedtls_ssl_session *session, - unsigned char *buf, - size_t buf_len, - size_t *olen ) +int mbedtls_ssl_session_save(const mbedtls_ssl_session *session, + unsigned char *buf, + size_t buf_len, + size_t *olen) { - return( ssl_session_save( session, 0, buf, buf_len, olen ) ); + return ssl_session_save(session, 0, buf, buf_len, olen); } /* @@ -5628,10 +5502,10 @@ int mbedtls_ssl_session_save( const mbedtls_ssl_session *session, * case of error, and has an extra option omit_header. */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_session_load( mbedtls_ssl_session *session, - unsigned char omit_header, - const unsigned char *buf, - size_t len ) +static int ssl_session_load(mbedtls_ssl_session *session, + unsigned char omit_header, + const unsigned char *buf, + size_t len) { const unsigned char *p = buf; const unsigned char * const end = buf + len; @@ -5644,38 +5518,38 @@ static int ssl_session_load( mbedtls_ssl_session *session, #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ #endif /* MBEDTLS_X509_CRT_PARSE_C */ - if( !omit_header ) - { + if (!omit_header) { /* * Check version identifier */ - if( (size_t)( end - p ) < sizeof( ssl_serialized_session_header ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < sizeof(ssl_serialized_session_header)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - if( memcmp( p, ssl_serialized_session_header, - sizeof( ssl_serialized_session_header ) ) != 0 ) - { - return( MBEDTLS_ERR_SSL_VERSION_MISMATCH ); + if (memcmp(p, ssl_serialized_session_header, + sizeof(ssl_serialized_session_header)) != 0) { + return MBEDTLS_ERR_SSL_VERSION_MISMATCH; } - p += sizeof( ssl_serialized_session_header ); + p += sizeof(ssl_serialized_session_header); } /* * Time */ #if defined(MBEDTLS_HAVE_TIME) - if( 8 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - start = ( (uint64_t) p[0] << 56 ) | - ( (uint64_t) p[1] << 48 ) | - ( (uint64_t) p[2] << 40 ) | - ( (uint64_t) p[3] << 32 ) | - ( (uint64_t) p[4] << 24 ) | - ( (uint64_t) p[5] << 16 ) | - ( (uint64_t) p[6] << 8 ) | - ( (uint64_t) p[7] ); + if (8 > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } + + start = ((uint64_t) p[0] << 56) | + ((uint64_t) p[1] << 48) | + ((uint64_t) p[2] << 40) | + ((uint64_t) p[3] << 32) | + ((uint64_t) p[4] << 24) | + ((uint64_t) p[5] << 16) | + ((uint64_t) p[6] << 8) | + ((uint64_t) p[7]); p += 8; session->start = (time_t) start; @@ -5684,25 +5558,26 @@ static int ssl_session_load( mbedtls_ssl_session *session, /* * Basic mandatory fields */ - if( 2 + 1 + 1 + 32 + 48 + 4 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (2 + 1 + 1 + 32 + 48 + 4 > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - session->ciphersuite = ( p[0] << 8 ) | p[1]; + session->ciphersuite = (p[0] << 8) | p[1]; p += 2; session->compression = *p++; session->id_len = *p++; - memcpy( session->id, p, 32 ); + memcpy(session->id, p, 32); p += 32; - memcpy( session->master, p, 48 ); + memcpy(session->master, p, 48); p += 48; - session->verify_result = ( (uint32_t) p[0] << 24 ) | - ( (uint32_t) p[1] << 16 ) | - ( (uint32_t) p[2] << 8 ) | - ( (uint32_t) p[3] ); + session->verify_result = ((uint32_t) p[0] << 24) | + ((uint32_t) p[1] << 16) | + ((uint32_t) p[2] << 8) | + ((uint32_t) p[3]); p += 4; /* Immediately clear invalid pointer values that have been read, in case @@ -5724,64 +5599,69 @@ static int ssl_session_load( mbedtls_ssl_session *session, #if defined(MBEDTLS_X509_CRT_PARSE_C) #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) /* Deserialize CRT from the end of the ticket. */ - if( 3 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (3 > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - cert_len = ( p[0] << 16 ) | ( p[1] << 8 ) | p[2]; + cert_len = (p[0] << 16) | (p[1] << 8) | p[2]; p += 3; - if( cert_len != 0 ) - { + if (cert_len != 0) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - if( cert_len > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (cert_len > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - session->peer_cert = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ); + session->peer_cert = mbedtls_calloc(1, sizeof(mbedtls_x509_crt)); - if( session->peer_cert == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + if (session->peer_cert == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } - mbedtls_x509_crt_init( session->peer_cert ); + mbedtls_x509_crt_init(session->peer_cert); - if( ( ret = mbedtls_x509_crt_parse_der( session->peer_cert, - p, cert_len ) ) != 0 ) - { - mbedtls_x509_crt_free( session->peer_cert ); - mbedtls_free( session->peer_cert ); + if ((ret = mbedtls_x509_crt_parse_der(session->peer_cert, + p, cert_len)) != 0) { + mbedtls_x509_crt_free(session->peer_cert); + mbedtls_free(session->peer_cert); session->peer_cert = NULL; - return( ret ); + return ret; } p += cert_len; } #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ /* Deserialize CRT digest from the end of the ticket. */ - if( 2 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (2 > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } session->peer_cert_digest_type = (mbedtls_md_type_t) *p++; session->peer_cert_digest_len = (size_t) *p++; - if( session->peer_cert_digest_len != 0 ) - { + if (session->peer_cert_digest_len != 0) { const mbedtls_md_info_t *md_info = - mbedtls_md_info_from_type( session->peer_cert_digest_type ); - if( md_info == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - if( session->peer_cert_digest_len != mbedtls_md_get_size( md_info ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + mbedtls_md_info_from_type(session->peer_cert_digest_type); + if (md_info == NULL) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } + if (session->peer_cert_digest_len != mbedtls_md_get_size(md_info)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - if( session->peer_cert_digest_len > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (session->peer_cert_digest_len > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } session->peer_cert_digest = - mbedtls_calloc( 1, session->peer_cert_digest_len ); - if( session->peer_cert_digest == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + mbedtls_calloc(1, session->peer_cert_digest_len); + if (session->peer_cert_digest == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } - memcpy( session->peer_cert_digest, p, - session->peer_cert_digest_len ); + memcpy(session->peer_cert_digest, p, + session->peer_cert_digest_len); p += session->peer_cert_digest_len; } #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ @@ -5791,32 +5671,35 @@ static int ssl_session_load( mbedtls_ssl_session *session, * Session ticket and associated data */ #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) - if( 3 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (3 > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - session->ticket_len = ( p[0] << 16 ) | ( p[1] << 8 ) | p[2]; + session->ticket_len = (p[0] << 16) | (p[1] << 8) | p[2]; p += 3; - if( session->ticket_len != 0 ) - { - if( session->ticket_len > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (session->ticket_len != 0) { + if (session->ticket_len > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - session->ticket = mbedtls_calloc( 1, session->ticket_len ); - if( session->ticket == NULL ) - return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); + session->ticket = mbedtls_calloc(1, session->ticket_len); + if (session->ticket == NULL) { + return MBEDTLS_ERR_SSL_ALLOC_FAILED; + } - memcpy( session->ticket, p, session->ticket_len ); + memcpy(session->ticket, p, session->ticket_len); p += session->ticket_len; } - if( 4 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (4 > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - session->ticket_lifetime = ( (uint32_t) p[0] << 24 ) | - ( (uint32_t) p[1] << 16 ) | - ( (uint32_t) p[2] << 8 ) | - ( (uint32_t) p[3] ); + session->ticket_lifetime = ((uint32_t) p[0] << 24) | + ((uint32_t) p[1] << 16) | + ((uint32_t) p[2] << 8) | + ((uint32_t) p[3]); p += 4; #endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */ @@ -5824,106 +5707,114 @@ static int ssl_session_load( mbedtls_ssl_session *session, * Misc extension-related info */ #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) - if( 1 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (1 > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } session->mfl_code = *p++; #endif #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - if( 1 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (1 > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } session->trunc_hmac = *p++; #endif #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - if( 1 > (size_t)( end - p ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (1 > (size_t) (end - p)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } session->encrypt_then_mac = *p++; #endif /* Done, should have consumed entire buffer */ - if( p != end ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (p != end) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - return( 0 ); + return 0; } /* * Deserialize session: public wrapper for error cleaning */ -int mbedtls_ssl_session_load( mbedtls_ssl_session *session, - const unsigned char *buf, - size_t len ) +int mbedtls_ssl_session_load(mbedtls_ssl_session *session, + const unsigned char *buf, + size_t len) { - int ret = ssl_session_load( session, 0, buf, len ); + int ret = ssl_session_load(session, 0, buf, len); - if( ret != 0 ) - mbedtls_ssl_session_free( session ); + if (ret != 0) { + mbedtls_ssl_session_free(session); + } - return( ret ); + return ret; } /* * Perform a single step of the SSL handshake */ -int mbedtls_ssl_handshake_step( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_handshake_step(mbedtls_ssl_context *ssl) { int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - if( ssl == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl == NULL || ssl->conf == NULL) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } #if defined(MBEDTLS_SSL_CLI_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) - ret = mbedtls_ssl_handshake_client_step( ssl ); + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) { + ret = mbedtls_ssl_handshake_client_step(ssl); + } #endif #if defined(MBEDTLS_SSL_SRV_C) - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - ret = mbedtls_ssl_handshake_server_step( ssl ); + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) { + ret = mbedtls_ssl_handshake_server_step(ssl); + } #endif - return( ret ); + return ret; } /* * Perform the SSL handshake */ -int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_handshake(mbedtls_ssl_context *ssl) { int ret = 0; /* Sanity checks */ - if( ssl == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl == NULL || ssl->conf == NULL) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ( ssl->f_set_timer == NULL || ssl->f_get_timer == NULL ) ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "You must use " - "mbedtls_ssl_set_timer_cb() for DTLS" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + (ssl->f_set_timer == NULL || ssl->f_get_timer == NULL)) { + MBEDTLS_SSL_DEBUG_MSG(1, ("You must use " + "mbedtls_ssl_set_timer_cb() for DTLS")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } #endif /* MBEDTLS_SSL_PROTO_DTLS */ - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> handshake" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> handshake")); /* Main handshake loop */ - while( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - { - ret = mbedtls_ssl_handshake_step( ssl ); + while (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) { + ret = mbedtls_ssl_handshake_step(ssl); - if( ret != 0 ) + if (ret != 0) { break; + } } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= handshake" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= handshake")); - return( ret ); + return ret; } #if defined(MBEDTLS_SSL_RENEGOTIATION) @@ -5932,25 +5823,24 @@ int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl ) * Write HelloRequest to request renegotiation on server */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_write_hello_request( mbedtls_ssl_context *ssl ) +static int ssl_write_hello_request(mbedtls_ssl_context *ssl) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello request" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> write hello request")); ssl->out_msglen = 4; ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE; ssl->out_msg[0] = MBEDTLS_SSL_HS_HELLO_REQUEST; - if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret ); - return( ret ); + if ((ret = mbedtls_ssl_write_handshake_msg(ssl)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_handshake_msg", ret); + return ret; } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello request" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= write hello request")); - return( 0 ); + return 0; } #endif /* MBEDTLS_SSL_SRV_C */ @@ -5963,67 +5853,69 @@ static int ssl_write_hello_request( mbedtls_ssl_context *ssl ) * If the handshake doesn't complete due to waiting for I/O, it will continue * during the next calls to mbedtls_ssl_renegotiate() or mbedtls_ssl_read() respectively. */ -int mbedtls_ssl_start_renegotiation( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_start_renegotiation(mbedtls_ssl_context *ssl) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> renegotiate" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> renegotiate")); - if( ( ret = ssl_handshake_init( ssl ) ) != 0 ) - return( ret ); + if ((ret = ssl_handshake_init(ssl)) != 0) { + return ret; + } /* RFC 6347 4.2.2: "[...] the HelloRequest will have message_seq = 0 and * the ServerHello will have message_seq = 1" */ #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && - ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ) - { - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) + if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING) { + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) { ssl->handshake->out_msg_seq = 1; - else + } else { ssl->handshake->in_msg_seq = 1; + } } #endif ssl->state = MBEDTLS_SSL_HELLO_REQUEST; ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS; - if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret ); - return( ret ); + if ((ret = mbedtls_ssl_handshake(ssl)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_handshake", ret); + return ret; } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= renegotiate" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= renegotiate")); - return( 0 ); + return 0; } /* * Renegotiate current connection on client, * or request renegotiation on server */ -int mbedtls_ssl_renegotiate( mbedtls_ssl_context *ssl ) +int mbedtls_ssl_renegotiate(mbedtls_ssl_context *ssl) { int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE; - if( ssl == NULL || ssl->conf == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl == NULL || ssl->conf == NULL) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } #if defined(MBEDTLS_SSL_SRV_C) /* On server, just send the request */ - if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER ) - { - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) { + if (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING; /* Did we already try/start sending HelloRequest? */ - if( ssl->out_left != 0 ) - return( mbedtls_ssl_flush_output( ssl ) ); + if (ssl->out_left != 0) { + return mbedtls_ssl_flush_output(ssl); + } - return( ssl_write_hello_request( ssl ) ); + return ssl_write_hello_request(ssl); } #endif /* MBEDTLS_SSL_SRV_C */ @@ -6032,92 +5924,87 @@ int mbedtls_ssl_renegotiate( mbedtls_ssl_context *ssl ) * On client, either start the renegotiation process or, * if already in progress, continue the handshake */ - if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) - { - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS) { + if (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - if( ( ret = mbedtls_ssl_start_renegotiation( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_start_renegotiation", ret ); - return( ret ); + if ((ret = mbedtls_ssl_start_renegotiation(ssl)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_start_renegotiation", ret); + return ret; } - } - else - { - if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret ); - return( ret ); + } else { + if ((ret = mbedtls_ssl_handshake(ssl)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_handshake", ret); + return ret; } } #endif /* MBEDTLS_SSL_CLI_C */ - return( ret ); + return ret; } #endif /* MBEDTLS_SSL_RENEGOTIATION */ #if defined(MBEDTLS_X509_CRT_PARSE_C) -static void ssl_key_cert_free( mbedtls_ssl_key_cert *key_cert ) +static void ssl_key_cert_free(mbedtls_ssl_key_cert *key_cert) { mbedtls_ssl_key_cert *cur = key_cert, *next; - while( cur != NULL ) - { + while (cur != NULL) { next = cur->next; - mbedtls_free( cur ); + mbedtls_free(cur); cur = next; } } #endif /* MBEDTLS_X509_CRT_PARSE_C */ -void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl ) +void mbedtls_ssl_handshake_free(mbedtls_ssl_context *ssl) { mbedtls_ssl_handshake_params *handshake = ssl->handshake; - if( handshake == NULL ) + if (handshake == NULL) { return; + } #if defined(MBEDTLS_SSL_ASYNC_PRIVATE) - if( ssl->conf->f_async_cancel != NULL && handshake->async_in_progress != 0 ) - { - ssl->conf->f_async_cancel( ssl ); + if (ssl->conf->f_async_cancel != NULL && handshake->async_in_progress != 0) { + ssl->conf->f_async_cancel(ssl); handshake->async_in_progress = 0; } #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */ #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ defined(MBEDTLS_SSL_PROTO_TLS1_1) - mbedtls_md5_free( &handshake->fin_md5 ); - mbedtls_sha1_free( &handshake->fin_sha1 ); + mbedtls_md5_free(&handshake->fin_md5); + mbedtls_sha1_free(&handshake->fin_sha1); #endif #if defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_SHA256_C) #if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_abort( &handshake->fin_sha256_psa ); + psa_hash_abort(&handshake->fin_sha256_psa); #else - mbedtls_sha256_free( &handshake->fin_sha256 ); + mbedtls_sha256_free(&handshake->fin_sha256); #endif #endif #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) #if defined(MBEDTLS_USE_PSA_CRYPTO) - psa_hash_abort( &handshake->fin_sha384_psa ); + psa_hash_abort(&handshake->fin_sha384_psa); #else - mbedtls_sha512_free( &handshake->fin_sha512 ); + mbedtls_sha512_free(&handshake->fin_sha512); #endif #endif #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */ #if defined(MBEDTLS_DHM_C) - mbedtls_dhm_free( &handshake->dhm_ctx ); + mbedtls_dhm_free(&handshake->dhm_ctx); #endif #if defined(MBEDTLS_ECDH_C) - mbedtls_ecdh_free( &handshake->ecdh_ctx ); + mbedtls_ecdh_free(&handshake->ecdh_ctx); #endif #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - mbedtls_ecjpake_free( &handshake->ecjpake_ctx ); + mbedtls_ecjpake_free(&handshake->ecjpake_ctx); #if defined(MBEDTLS_SSL_CLI_C) - mbedtls_free( handshake->ecjpake_cache ); + mbedtls_free(handshake->ecjpake_cache); handshake->ecjpake_cache = NULL; handshake->ecjpake_cache_len = 0; #endif @@ -6126,14 +6013,13 @@ void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) /* explicit void pointer cast for buggy MS compiler */ - mbedtls_free( (void *) handshake->curves ); + mbedtls_free((void *) handshake->curves); #endif #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) - if( handshake->psk != NULL ) - { - mbedtls_platform_zeroize( handshake->psk, handshake->psk_len ); - mbedtls_free( handshake->psk ); + if (handshake->psk != NULL) { + mbedtls_platform_zeroize(handshake->psk, handshake->psk_len); + mbedtls_free(handshake->psk); } #endif @@ -6143,71 +6029,69 @@ void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl ) * Free only the linked list wrapper, not the keys themselves * since the belong to the SNI callback */ - if( handshake->sni_key_cert != NULL ) - { + if (handshake->sni_key_cert != NULL) { mbedtls_ssl_key_cert *cur = handshake->sni_key_cert, *next; - while( cur != NULL ) - { + while (cur != NULL) { next = cur->next; - mbedtls_free( cur ); + mbedtls_free(cur); cur = next; } } #endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_SERVER_NAME_INDICATION */ #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED) - mbedtls_x509_crt_restart_free( &handshake->ecrs_ctx ); - if( handshake->ecrs_peer_cert != NULL ) - { - mbedtls_x509_crt_free( handshake->ecrs_peer_cert ); - mbedtls_free( handshake->ecrs_peer_cert ); + mbedtls_x509_crt_restart_free(&handshake->ecrs_ctx); + if (handshake->ecrs_peer_cert != NULL) { + mbedtls_x509_crt_free(handshake->ecrs_peer_cert); + mbedtls_free(handshake->ecrs_peer_cert); } #endif #if defined(MBEDTLS_X509_CRT_PARSE_C) && \ !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) - mbedtls_pk_free( &handshake->peer_pubkey ); + mbedtls_pk_free(&handshake->peer_pubkey); #endif /* MBEDTLS_X509_CRT_PARSE_C && !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ #if defined(MBEDTLS_SSL_PROTO_DTLS) - mbedtls_free( handshake->verify_cookie ); - mbedtls_ssl_flight_free( handshake->flight ); - mbedtls_ssl_buffering_free( ssl ); + mbedtls_free(handshake->verify_cookie); + mbedtls_ssl_flight_free(handshake->flight); + mbedtls_ssl_buffering_free(ssl); #endif #if defined(MBEDTLS_ECDH_C) && \ defined(MBEDTLS_USE_PSA_CRYPTO) - psa_destroy_key( handshake->ecdh_psa_privkey ); + psa_destroy_key(handshake->ecdh_psa_privkey); #endif /* MBEDTLS_ECDH_C && MBEDTLS_USE_PSA_CRYPTO */ - mbedtls_platform_zeroize( handshake, - sizeof( mbedtls_ssl_handshake_params ) ); + mbedtls_platform_zeroize(handshake, + sizeof(mbedtls_ssl_handshake_params)); #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) /* If the buffers are too big - reallocate. Because of the way Mbed TLS * processes datagrams and the fact that a datagram is allowed to have * several records in it, it is possible that the I/O buffers are not * empty at this stage */ - handle_buffer_resizing( ssl, 1, mbedtls_ssl_get_input_buflen( ssl ), - mbedtls_ssl_get_output_buflen( ssl ) ); + handle_buffer_resizing(ssl, 1, mbedtls_ssl_get_input_buflen(ssl), + mbedtls_ssl_get_output_buflen(ssl)); #endif } -void mbedtls_ssl_session_free( mbedtls_ssl_session *session ) +void mbedtls_ssl_session_free(mbedtls_ssl_session *session) { - if( session == NULL ) + if (session == NULL) { return; + } #if defined(MBEDTLS_X509_CRT_PARSE_C) - ssl_clear_peer_cert( session ); + ssl_clear_peer_cert(session); #endif #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C) - mbedtls_free( session->ticket ); + mbedtls_free(session->ticket); #endif - mbedtls_platform_zeroize( session, sizeof( mbedtls_ssl_session ) ); + mbedtls_platform_zeroize(session, sizeof(mbedtls_ssl_session)); } #if defined(MBEDTLS_SSL_CONTEXT_SERIALIZATION) @@ -6242,22 +6126,25 @@ void mbedtls_ssl_session_free( mbedtls_ssl_session *session ) #define SSL_SERIALIZED_CONTEXT_CONFIG_ALPN_BIT 3 #define SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG \ - ( (uint32_t) ( \ - ( SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_CONNECTION_ID << SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_CONNECTION_ID_BIT ) | \ - ( SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_BADMAC_LIMIT << SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_BADMAC_LIMIT_BIT ) | \ - ( SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_ANTI_REPLAY << SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_ANTI_REPLAY_BIT ) | \ - ( SSL_SERIALIZED_CONTEXT_CONFIG_ALPN << SSL_SERIALIZED_CONTEXT_CONFIG_ALPN_BIT ) | \ - 0u ) ) + ((uint32_t) ( \ + (SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_CONNECTION_ID << \ + SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_CONNECTION_ID_BIT) | \ + (SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_BADMAC_LIMIT << \ + SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_BADMAC_LIMIT_BIT) | \ + (SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_ANTI_REPLAY << \ + SSL_SERIALIZED_CONTEXT_CONFIG_DTLS_ANTI_REPLAY_BIT) | \ + (SSL_SERIALIZED_CONTEXT_CONFIG_ALPN << SSL_SERIALIZED_CONTEXT_CONFIG_ALPN_BIT) | \ + 0u)) static unsigned char ssl_serialized_context_header[] = { MBEDTLS_VERSION_MAJOR, MBEDTLS_VERSION_MINOR, MBEDTLS_VERSION_PATCH, - MBEDTLS_BYTE_1( SSL_SERIALIZED_SESSION_CONFIG_BITFLAG ), - MBEDTLS_BYTE_0( SSL_SERIALIZED_SESSION_CONFIG_BITFLAG ), - MBEDTLS_BYTE_2( SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG ), - MBEDTLS_BYTE_1( SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG ), - MBEDTLS_BYTE_0( SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG ), + MBEDTLS_BYTE_1(SSL_SERIALIZED_SESSION_CONFIG_BITFLAG), + MBEDTLS_BYTE_0(SSL_SERIALIZED_SESSION_CONFIG_BITFLAG), + MBEDTLS_BYTE_2(SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG), + MBEDTLS_BYTE_1(SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG), + MBEDTLS_BYTE_0(SSL_SERIALIZED_CONTEXT_CONFIG_BITFLAG), }; /* @@ -6298,10 +6185,10 @@ static unsigned char ssl_serialized_context_header[] = { * 4. value was temporary (eg content of input buffer) * 5. value will be provided by the user again (eg I/O callbacks and context) */ -int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl, - unsigned char *buf, - size_t buf_len, - size_t *olen ) +int mbedtls_ssl_context_save(mbedtls_ssl_context *ssl, + unsigned char *buf, + size_t buf_len, + size_t *olen) { unsigned char *p = buf; size_t used = 0; @@ -6317,94 +6204,84 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl, * (only DTLS) but are currently used to simplify the implementation. */ /* The initial handshake must be over */ - if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Initial handshake isn't over" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) { + MBEDTLS_SSL_DEBUG_MSG(1, ("Initial handshake isn't over")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - if( ssl->handshake != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Handshake isn't completed" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->handshake != NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("Handshake isn't completed")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } /* Double-check that sub-structures are indeed ready */ - if( ssl->transform == NULL || ssl->session == NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Serialised structures aren't ready" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->transform == NULL || ssl->session == NULL) { + MBEDTLS_SSL_DEBUG_MSG(1, ("Serialised structures aren't ready")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } /* There must be no pending incoming or outgoing data */ - if( mbedtls_ssl_check_pending( ssl ) != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "There is pending incoming data" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (mbedtls_ssl_check_pending(ssl) != 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("There is pending incoming data")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - if( ssl->out_left != 0 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "There is pending outgoing data" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->out_left != 0) { + MBEDTLS_SSL_DEBUG_MSG(1, ("There is pending outgoing data")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } /* Protocol must be DTLS, not TLS */ - if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Only DTLS is supported" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM) { + MBEDTLS_SSL_DEBUG_MSG(1, ("Only DTLS is supported")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } /* Version must be 1.2 */ - if( ssl->major_ver != MBEDTLS_SSL_MAJOR_VERSION_3 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Only version 1.2 supported" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->major_ver != MBEDTLS_SSL_MAJOR_VERSION_3) { + MBEDTLS_SSL_DEBUG_MSG(1, ("Only version 1.2 supported")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Only version 1.2 supported" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3) { + MBEDTLS_SSL_DEBUG_MSG(1, ("Only version 1.2 supported")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } /* We must be using an AEAD ciphersuite */ - if( mbedtls_ssl_transform_uses_aead( ssl->transform ) != 1 ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Only AEAD ciphersuites supported" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (mbedtls_ssl_transform_uses_aead(ssl->transform) != 1) { + MBEDTLS_SSL_DEBUG_MSG(1, ("Only AEAD ciphersuites supported")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } /* Renegotiation must not be enabled */ #if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->conf->disable_renegotiation != MBEDTLS_SSL_RENEGOTIATION_DISABLED ) - { - MBEDTLS_SSL_DEBUG_MSG( 1, ( "Renegotiation must not be enabled" ) ); - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->conf->disable_renegotiation != MBEDTLS_SSL_RENEGOTIATION_DISABLED) { + MBEDTLS_SSL_DEBUG_MSG(1, ("Renegotiation must not be enabled")); + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } #endif /* * Version and format identifier */ - used += sizeof( ssl_serialized_context_header ); + used += sizeof(ssl_serialized_context_header); - if( used <= buf_len ) - { - memcpy( p, ssl_serialized_context_header, - sizeof( ssl_serialized_context_header ) ); - p += sizeof( ssl_serialized_context_header ); + if (used <= buf_len) { + memcpy(p, ssl_serialized_context_header, + sizeof(ssl_serialized_context_header)); + p += sizeof(ssl_serialized_context_header); } /* * Session (length + data) */ - ret = ssl_session_save( ssl->session, 1, NULL, 0, &session_len ); - if( ret != MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ) - return( ret ); + ret = ssl_session_save(ssl->session, 1, NULL, 0, &session_len); + if (ret != MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) { + return ret; + } used += 4 + session_len; - if( used <= buf_len ) - { - MBEDTLS_PUT_UINT32_BE( session_len, p, 0 ); + if (used <= buf_len) { + MBEDTLS_PUT_UINT32_BE(session_len, p, 0); p += 4; - ret = ssl_session_save( ssl->session, 1, - p, session_len, &session_len ); - if( ret != 0 ) - return( ret ); + ret = ssl_session_save(ssl->session, 1, + p, session_len, &session_len); + if (ret != 0) { + return ret; + } p += session_len; } @@ -6412,24 +6289,22 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl, /* * Transform */ - used += sizeof( ssl->transform->randbytes ); - if( used <= buf_len ) - { - memcpy( p, ssl->transform->randbytes, - sizeof( ssl->transform->randbytes ) ); - p += sizeof( ssl->transform->randbytes ); + used += sizeof(ssl->transform->randbytes); + if (used <= buf_len) { + memcpy(p, ssl->transform->randbytes, + sizeof(ssl->transform->randbytes)); + p += sizeof(ssl->transform->randbytes); } #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) used += 2 + ssl->transform->in_cid_len + ssl->transform->out_cid_len; - if( used <= buf_len ) - { + if (used <= buf_len) { *p++ = ssl->transform->in_cid_len; - memcpy( p, ssl->transform->in_cid, ssl->transform->in_cid_len ); + memcpy(p, ssl->transform->in_cid, ssl->transform->in_cid_len); p += ssl->transform->in_cid_len; *p++ = ssl->transform->out_cid_len; - memcpy( p, ssl->transform->out_cid, ssl->transform->out_cid_len ); + memcpy(p, ssl->transform->out_cid, ssl->transform->out_cid_len); p += ssl->transform->out_cid_len; } #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ @@ -6439,45 +6314,40 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl, */ #if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) used += 4; - if( used <= buf_len ) - { - MBEDTLS_PUT_UINT32_BE( ssl->badmac_seen, p, 0 ); + if (used <= buf_len) { + MBEDTLS_PUT_UINT32_BE(ssl->badmac_seen, p, 0); p += 4; } #endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */ #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) used += 16; - if( used <= buf_len ) - { - MBEDTLS_PUT_UINT64_BE( ssl->in_window_top, p, 0 ); + if (used <= buf_len) { + MBEDTLS_PUT_UINT64_BE(ssl->in_window_top, p, 0); p += 8; - MBEDTLS_PUT_UINT64_BE( ssl->in_window, p, 0 ); + MBEDTLS_PUT_UINT64_BE(ssl->in_window, p, 0); p += 8; } #endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */ #if defined(MBEDTLS_SSL_PROTO_DTLS) used += 1; - if( used <= buf_len ) - { + if (used <= buf_len) { *p++ = ssl->disable_datagram_packing; } #endif /* MBEDTLS_SSL_PROTO_DTLS */ used += 8; - if( used <= buf_len ) - { - memcpy( p, ssl->cur_out_ctr, 8 ); + if (used <= buf_len) { + memcpy(p, ssl->cur_out_ctr, 8); p += 8; } #if defined(MBEDTLS_SSL_PROTO_DTLS) used += 2; - if( used <= buf_len ) - { - MBEDTLS_PUT_UINT16_BE( ssl->mtu, p, 0 ); + if (used <= buf_len) { + MBEDTLS_PUT_UINT16_BE(ssl->mtu, p, 0); p += 2; } #endif /* MBEDTLS_SSL_PROTO_DTLS */ @@ -6485,17 +6355,15 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_SSL_ALPN) { const uint8_t alpn_len = ssl->alpn_chosen - ? (uint8_t) strlen( ssl->alpn_chosen ) + ? (uint8_t) strlen(ssl->alpn_chosen) : 0; used += 1 + alpn_len; - if( used <= buf_len ) - { + if (used <= buf_len) { *p++ = alpn_len; - if( ssl->alpn_chosen != NULL ) - { - memcpy( p, ssl->alpn_chosen, alpn_len ); + if (ssl->alpn_chosen != NULL) { + memcpy(p, ssl->alpn_chosen, alpn_len); p += alpn_len; } } @@ -6507,12 +6375,13 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl, */ *olen = used; - if( used > buf_len ) - return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL ); + if (used > buf_len) { + return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL; + } - MBEDTLS_SSL_DEBUG_BUF( 4, "saved context", buf, used ); + MBEDTLS_SSL_DEBUG_BUF(4, "saved context", buf, used); - return( mbedtls_ssl_session_reset_int( ssl, 0 ) ); + return mbedtls_ssl_session_reset_int(ssl, 0); } /* @@ -6521,34 +6390,36 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl, */ #if defined(MBEDTLS_SHA256_C) || \ (defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)) -typedef int (*tls_prf_fn)( const unsigned char *secret, size_t slen, - const char *label, - const unsigned char *random, size_t rlen, - unsigned char *dstbuf, size_t dlen ); -static tls_prf_fn ssl_tls12prf_from_cs( int ciphersuite_id ) +typedef int (*tls_prf_fn)(const unsigned char *secret, size_t slen, + const char *label, + const unsigned char *random, size_t rlen, + unsigned char *dstbuf, size_t dlen); +static tls_prf_fn ssl_tls12prf_from_cs(int ciphersuite_id) { const mbedtls_ssl_ciphersuite_t * const ciphersuite_info = - mbedtls_ssl_ciphersuite_from_id( ciphersuite_id ); + mbedtls_ssl_ciphersuite_from_id(ciphersuite_id); - if( ciphersuite_info == NULL ) - return( NULL ); + if (ciphersuite_info == NULL) { + return NULL; + } #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) - if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 ) - return( tls_prf_sha384 ); - else + if (ciphersuite_info->mac == MBEDTLS_MD_SHA384) { + return tls_prf_sha384; + } else #endif #if defined(MBEDTLS_SHA256_C) { - if( ciphersuite_info->mac == MBEDTLS_MD_SHA256 ) - return( tls_prf_sha256 ); + if (ciphersuite_info->mac == MBEDTLS_MD_SHA256) { + return tls_prf_sha256; + } } #endif #if !defined(MBEDTLS_SHA256_C) && \ (!defined(MBEDTLS_SHA512_C) || defined(MBEDTLS_SHA512_NO_SHA384)) (void) ciphersuite_info; #endif - return( NULL ); + return NULL; } #endif /* MBEDTLS_SHA256_C || @@ -6561,9 +6432,9 @@ static tls_prf_fn ssl_tls12prf_from_cs( int ciphersuite_id ) * case of error. */ MBEDTLS_CHECK_RETURN_CRITICAL -static int ssl_context_load( mbedtls_ssl_context *ssl, - const unsigned char *buf, - size_t len ) +static int ssl_context_load(mbedtls_ssl_context *ssl, + const unsigned char *buf, + size_t len) { const unsigned char *p = buf; const unsigned char * const end = buf + len; @@ -6577,17 +6448,16 @@ static int ssl_context_load( mbedtls_ssl_context *ssl, * (Checking session is useful because it won't be NULL if we're * renegotiating, or if the user mistakenly loaded a session first.) */ - if( ssl->state != MBEDTLS_SSL_HELLO_REQUEST || - ssl->session != NULL ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (ssl->state != MBEDTLS_SSL_HELLO_REQUEST || + ssl->session != NULL) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } /* * We can't check that the config matches the initial one, but we can at * least check it matches the requirements for serializing. */ - if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM || + if (ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM || ssl->conf->max_major_ver < MBEDTLS_SSL_MAJOR_VERSION_3 || ssl->conf->min_major_ver > MBEDTLS_SSL_MAJOR_VERSION_3 || ssl->conf->max_minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 || @@ -6595,36 +6465,36 @@ static int ssl_context_load( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_SSL_RENEGOTIATION) ssl->conf->disable_renegotiation != MBEDTLS_SSL_RENEGOTIATION_DISABLED || #endif - 0 ) - { - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + 0) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; } - MBEDTLS_SSL_DEBUG_BUF( 4, "context to load", buf, len ); + MBEDTLS_SSL_DEBUG_BUF(4, "context to load", buf, len); /* * Check version identifier */ - if( (size_t)( end - p ) < sizeof( ssl_serialized_context_header ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < sizeof(ssl_serialized_context_header)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - if( memcmp( p, ssl_serialized_context_header, - sizeof( ssl_serialized_context_header ) ) != 0 ) - { - return( MBEDTLS_ERR_SSL_VERSION_MISMATCH ); + if (memcmp(p, ssl_serialized_context_header, + sizeof(ssl_serialized_context_header)) != 0) { + return MBEDTLS_ERR_SSL_VERSION_MISMATCH; } - p += sizeof( ssl_serialized_context_header ); + p += sizeof(ssl_serialized_context_header); /* * Session */ - if( (size_t)( end - p ) < 4 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < 4) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - session_len = ( (size_t) p[0] << 24 ) | - ( (size_t) p[1] << 16 ) | - ( (size_t) p[2] << 8 ) | - ( (size_t) p[3] ); + session_len = ((size_t) p[0] << 24) | + ((size_t) p[1] << 16) | + ((size_t) p[2] << 8) | + ((size_t) p[3]); p += 4; /* This has been allocated by ssl_handshake_init(), called by @@ -6634,14 +6504,14 @@ static int ssl_context_load( mbedtls_ssl_context *ssl, ssl->session_out = ssl->session; ssl->session_negotiate = NULL; - if( (size_t)( end - p ) < session_len ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < session_len) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - ret = ssl_session_load( ssl->session, 1, p, session_len ); - if( ret != 0 ) - { - mbedtls_ssl_session_free( ssl->session ); - return( ret ); + ret = ssl_session_load(ssl->session, 1, p, session_len); + if (ret != 0) { + mbedtls_ssl_session_free(ssl->session); + return ret; } p += session_len; @@ -6657,57 +6527,63 @@ static int ssl_context_load( mbedtls_ssl_context *ssl, ssl->transform_out = ssl->transform; ssl->transform_negotiate = NULL; - prf_func = ssl_tls12prf_from_cs( ssl->session->ciphersuite ); - if( prf_func == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + prf_func = ssl_tls12prf_from_cs(ssl->session->ciphersuite); + if (prf_func == NULL) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } /* Read random bytes and populate structure */ - if( (size_t)( end - p ) < sizeof( ssl->transform->randbytes ) ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < sizeof(ssl->transform->randbytes)) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - ret = ssl_populate_transform( ssl->transform, - ssl->session->ciphersuite, - ssl->session->master, + ret = ssl_populate_transform(ssl->transform, + ssl->session->ciphersuite, + ssl->session->master, #if defined(MBEDTLS_SSL_SOME_MODES_USE_MAC) #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) - ssl->session->encrypt_then_mac, + ssl->session->encrypt_then_mac, #endif #if defined(MBEDTLS_SSL_TRUNCATED_HMAC) - ssl->session->trunc_hmac, + ssl->session->trunc_hmac, #endif #endif /* MBEDTLS_SSL_SOME_MODES_USE_MAC */ #if defined(MBEDTLS_ZLIB_SUPPORT) - ssl->session->compression, + ssl->session->compression, #endif - prf_func, - p, /* currently pointing to randbytes */ - MBEDTLS_SSL_MINOR_VERSION_3, /* (D)TLS 1.2 is forced */ - ssl->conf->endpoint, - ssl ); - if( ret != 0 ) - return( ret ); + prf_func, + p, /* currently pointing to randbytes */ + MBEDTLS_SSL_MINOR_VERSION_3, /* (D)TLS 1.2 is forced */ + ssl->conf->endpoint, + ssl); + if (ret != 0) { + return ret; + } - p += sizeof( ssl->transform->randbytes ); + p += sizeof(ssl->transform->randbytes); #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) /* Read connection IDs and store them */ - if( (size_t)( end - p ) < 1 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < 1) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } ssl->transform->in_cid_len = *p++; - if( (size_t)( end - p ) < ssl->transform->in_cid_len + 1u ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < ssl->transform->in_cid_len + 1u) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - memcpy( ssl->transform->in_cid, p, ssl->transform->in_cid_len ); + memcpy(ssl->transform->in_cid, p, ssl->transform->in_cid_len); p += ssl->transform->in_cid_len; ssl->transform->out_cid_len = *p++; - if( (size_t)( end - p ) < ssl->transform->out_cid_len ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < ssl->transform->out_cid_len) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - memcpy( ssl->transform->out_cid, p, ssl->transform->out_cid_len ); + memcpy(ssl->transform->out_cid, p, ssl->transform->out_cid_len); p += ssl->transform->out_cid_len; #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */ @@ -6715,59 +6591,64 @@ static int ssl_context_load( mbedtls_ssl_context *ssl, * Saved fields from top-level ssl_context structure */ #if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) - if( (size_t)( end - p ) < 4 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < 4) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - ssl->badmac_seen = ( (uint32_t) p[0] << 24 ) | - ( (uint32_t) p[1] << 16 ) | - ( (uint32_t) p[2] << 8 ) | - ( (uint32_t) p[3] ); + ssl->badmac_seen = ((uint32_t) p[0] << 24) | + ((uint32_t) p[1] << 16) | + ((uint32_t) p[2] << 8) | + ((uint32_t) p[3]); p += 4; #endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */ #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) - if( (size_t)( end - p ) < 16 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); - - ssl->in_window_top = ( (uint64_t) p[0] << 56 ) | - ( (uint64_t) p[1] << 48 ) | - ( (uint64_t) p[2] << 40 ) | - ( (uint64_t) p[3] << 32 ) | - ( (uint64_t) p[4] << 24 ) | - ( (uint64_t) p[5] << 16 ) | - ( (uint64_t) p[6] << 8 ) | - ( (uint64_t) p[7] ); + if ((size_t) (end - p) < 16) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } + + ssl->in_window_top = ((uint64_t) p[0] << 56) | + ((uint64_t) p[1] << 48) | + ((uint64_t) p[2] << 40) | + ((uint64_t) p[3] << 32) | + ((uint64_t) p[4] << 24) | + ((uint64_t) p[5] << 16) | + ((uint64_t) p[6] << 8) | + ((uint64_t) p[7]); p += 8; - ssl->in_window = ( (uint64_t) p[0] << 56 ) | - ( (uint64_t) p[1] << 48 ) | - ( (uint64_t) p[2] << 40 ) | - ( (uint64_t) p[3] << 32 ) | - ( (uint64_t) p[4] << 24 ) | - ( (uint64_t) p[5] << 16 ) | - ( (uint64_t) p[6] << 8 ) | - ( (uint64_t) p[7] ); + ssl->in_window = ((uint64_t) p[0] << 56) | + ((uint64_t) p[1] << 48) | + ((uint64_t) p[2] << 40) | + ((uint64_t) p[3] << 32) | + ((uint64_t) p[4] << 24) | + ((uint64_t) p[5] << 16) | + ((uint64_t) p[6] << 8) | + ((uint64_t) p[7]); p += 8; #endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */ #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( (size_t)( end - p ) < 1 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < 1) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } ssl->disable_datagram_packing = *p++; #endif /* MBEDTLS_SSL_PROTO_DTLS */ - if( (size_t)( end - p ) < 8 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < 8) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - memcpy( ssl->cur_out_ctr, p, 8 ); + memcpy(ssl->cur_out_ctr, p, 8); p += 8; #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( (size_t)( end - p ) < 2 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < 2) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - ssl->mtu = ( p[0] << 8 ) | p[1]; + ssl->mtu = (p[0] << 8) | p[1]; p += 2; #endif /* MBEDTLS_SSL_PROTO_DTLS */ @@ -6776,19 +6657,17 @@ static int ssl_context_load( mbedtls_ssl_context *ssl, uint8_t alpn_len; const char **cur; - if( (size_t)( end - p ) < 1 ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if ((size_t) (end - p) < 1) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } alpn_len = *p++; - if( alpn_len != 0 && ssl->conf->alpn_list != NULL ) - { + if (alpn_len != 0 && ssl->conf->alpn_list != NULL) { /* alpn_chosen should point to an item in the configured list */ - for( cur = ssl->conf->alpn_list; *cur != NULL; cur++ ) - { - if( strlen( *cur ) == alpn_len && - memcmp( p, cur, alpn_len ) == 0 ) - { + for (cur = ssl->conf->alpn_list; *cur != NULL; cur++) { + if (strlen(*cur) == alpn_len && + memcmp(p, cur, alpn_len) == 0) { ssl->alpn_chosen = *cur; break; } @@ -6796,8 +6675,9 @@ static int ssl_context_load( mbedtls_ssl_context *ssl, } /* can only happen on conf mismatch */ - if( alpn_len != 0 && ssl->alpn_chosen == NULL ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (alpn_len != 0 && ssl->alpn_chosen == NULL) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } p += alpn_len; } @@ -6816,7 +6696,7 @@ static int ssl_context_load( mbedtls_ssl_context *ssl, /* Adjust pointers for header fields of outgoing records to * the given transform, accounting for explicit IV and CID. */ - mbedtls_ssl_update_out_pointers( ssl, ssl->transform ); + mbedtls_ssl_update_out_pointers(ssl, ssl->transform); #if defined(MBEDTLS_SSL_PROTO_DTLS) ssl->in_epoch = 1; @@ -6826,137 +6706,131 @@ static int ssl_context_load( mbedtls_ssl_context *ssl, * which we don't want - otherwise we'd end up freeing the wrong transform * by calling mbedtls_ssl_handshake_wrapup_free_hs_transform() * inappropriately. */ - if( ssl->handshake != NULL ) - { - mbedtls_ssl_handshake_free( ssl ); - mbedtls_free( ssl->handshake ); + if (ssl->handshake != NULL) { + mbedtls_ssl_handshake_free(ssl); + mbedtls_free(ssl->handshake); ssl->handshake = NULL; } /* * Done - should have consumed entire buffer */ - if( p != end ) - return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA ); + if (p != end) { + return MBEDTLS_ERR_SSL_BAD_INPUT_DATA; + } - return( 0 ); + return 0; } /* * Deserialize context: public wrapper for error cleaning */ -int mbedtls_ssl_context_load( mbedtls_ssl_context *context, - const unsigned char *buf, - size_t len ) +int mbedtls_ssl_context_load(mbedtls_ssl_context *context, + const unsigned char *buf, + size_t len) { - int ret = ssl_context_load( context, buf, len ); + int ret = ssl_context_load(context, buf, len); - if( ret != 0 ) - mbedtls_ssl_free( context ); + if (ret != 0) { + mbedtls_ssl_free(context); + } - return( ret ); + return ret; } #endif /* MBEDTLS_SSL_CONTEXT_SERIALIZATION */ /* * Free an SSL context */ -void mbedtls_ssl_free( mbedtls_ssl_context *ssl ) +void mbedtls_ssl_free(mbedtls_ssl_context *ssl) { - if( ssl == NULL ) + if (ssl == NULL) { return; + } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> free" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("=> free")); - if( ssl->out_buf != NULL ) - { + if (ssl->out_buf != NULL) { #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) size_t out_buf_len = ssl->out_buf_len; #else size_t out_buf_len = MBEDTLS_SSL_OUT_BUFFER_LEN; #endif - mbedtls_platform_zeroize( ssl->out_buf, out_buf_len ); - mbedtls_free( ssl->out_buf ); + mbedtls_platform_zeroize(ssl->out_buf, out_buf_len); + mbedtls_free(ssl->out_buf); ssl->out_buf = NULL; } - if( ssl->in_buf != NULL ) - { + if (ssl->in_buf != NULL) { #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) size_t in_buf_len = ssl->in_buf_len; #else size_t in_buf_len = MBEDTLS_SSL_IN_BUFFER_LEN; #endif - mbedtls_platform_zeroize( ssl->in_buf, in_buf_len ); - mbedtls_free( ssl->in_buf ); + mbedtls_platform_zeroize(ssl->in_buf, in_buf_len); + mbedtls_free(ssl->in_buf); ssl->in_buf = NULL; } #if defined(MBEDTLS_ZLIB_SUPPORT) - if( ssl->compress_buf != NULL ) - { - mbedtls_platform_zeroize( ssl->compress_buf, MBEDTLS_SSL_COMPRESS_BUFFER_LEN ); - mbedtls_free( ssl->compress_buf ); + if (ssl->compress_buf != NULL) { + mbedtls_platform_zeroize(ssl->compress_buf, MBEDTLS_SSL_COMPRESS_BUFFER_LEN); + mbedtls_free(ssl->compress_buf); } #endif - if( ssl->transform ) - { - mbedtls_ssl_transform_free( ssl->transform ); - mbedtls_free( ssl->transform ); + if (ssl->transform) { + mbedtls_ssl_transform_free(ssl->transform); + mbedtls_free(ssl->transform); } - if( ssl->handshake ) - { - mbedtls_ssl_handshake_free( ssl ); - mbedtls_ssl_transform_free( ssl->transform_negotiate ); - mbedtls_ssl_session_free( ssl->session_negotiate ); + if (ssl->handshake) { + mbedtls_ssl_handshake_free(ssl); + mbedtls_ssl_transform_free(ssl->transform_negotiate); + mbedtls_ssl_session_free(ssl->session_negotiate); - mbedtls_free( ssl->handshake ); - mbedtls_free( ssl->transform_negotiate ); - mbedtls_free( ssl->session_negotiate ); + mbedtls_free(ssl->handshake); + mbedtls_free(ssl->transform_negotiate); + mbedtls_free(ssl->session_negotiate); } - if( ssl->session ) - { - mbedtls_ssl_session_free( ssl->session ); - mbedtls_free( ssl->session ); + if (ssl->session) { + mbedtls_ssl_session_free(ssl->session); + mbedtls_free(ssl->session); } #if defined(MBEDTLS_X509_CRT_PARSE_C) - if( ssl->hostname != NULL ) - { - mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) ); - mbedtls_free( ssl->hostname ); + if (ssl->hostname != NULL) { + mbedtls_platform_zeroize(ssl->hostname, strlen(ssl->hostname)); + mbedtls_free(ssl->hostname); } #endif #if defined(MBEDTLS_SSL_HW_RECORD_ACCEL) - if( mbedtls_ssl_hw_record_finish != NULL ) - { - MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_finish()" ) ); - mbedtls_ssl_hw_record_finish( ssl ); + if (mbedtls_ssl_hw_record_finish != NULL) { + MBEDTLS_SSL_DEBUG_MSG(2, ("going for mbedtls_ssl_hw_record_finish()")); + mbedtls_ssl_hw_record_finish(ssl); } #endif #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C) - mbedtls_free( ssl->cli_id ); + mbedtls_free(ssl->cli_id); #endif - MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= free" ) ); + MBEDTLS_SSL_DEBUG_MSG(2, ("<= free")); /* Actually clear after last debug message */ - mbedtls_platform_zeroize( ssl, sizeof( mbedtls_ssl_context ) ); + mbedtls_platform_zeroize(ssl, sizeof(mbedtls_ssl_context)); } /* * Initialize mbedtls_ssl_config */ -void mbedtls_ssl_config_init( mbedtls_ssl_config *conf ) +void mbedtls_ssl_config_init(mbedtls_ssl_config *conf) { - memset( conf, 0, sizeof( mbedtls_ssl_config ) ); + memset(conf, 0, sizeof(mbedtls_ssl_config)); } #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) @@ -7007,8 +6881,8 @@ static mbedtls_ecp_group_id ssl_preset_suiteb_curves[] = { /* * Load default in mbedtls_ssl_config */ -int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf, - int endpoint, int transport, int preset ) +int mbedtls_ssl_config_defaults(mbedtls_ssl_config *conf, + int endpoint, int transport, int preset) { #if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -7016,15 +6890,14 @@ int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf, /* Use the functions here so that they are covered in tests, * but otherwise access member directly for efficiency */ - mbedtls_ssl_conf_endpoint( conf, endpoint ); - mbedtls_ssl_conf_transport( conf, transport ); + mbedtls_ssl_conf_endpoint(conf, endpoint); + mbedtls_ssl_conf_transport(conf, transport); /* * Things that are common to all presets */ #if defined(MBEDTLS_SSL_CLI_C) - if( endpoint == MBEDTLS_SSL_IS_CLIENT ) - { + if (endpoint == MBEDTLS_SSL_IS_CLIENT) { conf->authmode = MBEDTLS_SSL_VERIFY_REQUIRED; #if defined(MBEDTLS_SSL_SESSION_TICKETS) conf->session_tickets = MBEDTLS_SSL_SESSION_TICKETS_ENABLED; @@ -7068,32 +6941,29 @@ int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf, #if defined(MBEDTLS_SSL_RENEGOTIATION) conf->renego_max_records = MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT; - memset( conf->renego_period, 0x00, 2 ); - memset( conf->renego_period + 2, 0xFF, 6 ); + memset(conf->renego_period, 0x00, 2); + memset(conf->renego_period + 2, 0xFF, 6); #endif #if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C) - if( endpoint == MBEDTLS_SSL_IS_SERVER ) - { - const unsigned char dhm_p[] = - MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN; - const unsigned char dhm_g[] = - MBEDTLS_DHM_RFC3526_MODP_2048_G_BIN; - - if ( ( ret = mbedtls_ssl_conf_dh_param_bin( conf, - dhm_p, sizeof( dhm_p ), - dhm_g, sizeof( dhm_g ) ) ) != 0 ) - { - return( ret ); - } - } + if (endpoint == MBEDTLS_SSL_IS_SERVER) { + const unsigned char dhm_p[] = + MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN; + const unsigned char dhm_g[] = + MBEDTLS_DHM_RFC3526_MODP_2048_G_BIN; + + if ((ret = mbedtls_ssl_conf_dh_param_bin(conf, + dhm_p, sizeof(dhm_p), + dhm_g, sizeof(dhm_g))) != 0) { + return ret; + } + } #endif /* * Preset-specific defaults */ - switch( preset ) - { + switch (preset) { /* * NSA Suite B */ @@ -7104,10 +6974,10 @@ int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf, conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION; conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = - ssl_preset_suiteb_ciphersuites; + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = + ssl_preset_suiteb_ciphersuites; #if defined(MBEDTLS_X509_CRT_PARSE_C) conf->cert_profile = &mbedtls_x509_crt_profile_suiteb; @@ -7126,27 +6996,28 @@ int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf, * Default */ default: - conf->min_major_ver = ( MBEDTLS_SSL_MIN_MAJOR_VERSION > - MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION ) ? - MBEDTLS_SSL_MIN_MAJOR_VERSION : - MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION; - conf->min_minor_ver = ( MBEDTLS_SSL_MIN_MINOR_VERSION > - MBEDTLS_SSL_MIN_VALID_MINOR_VERSION ) ? - MBEDTLS_SSL_MIN_MINOR_VERSION : - MBEDTLS_SSL_MIN_VALID_MINOR_VERSION; + conf->min_major_ver = (MBEDTLS_SSL_MIN_MAJOR_VERSION > + MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION) ? + MBEDTLS_SSL_MIN_MAJOR_VERSION : + MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION; + conf->min_minor_ver = (MBEDTLS_SSL_MIN_MINOR_VERSION > + MBEDTLS_SSL_MIN_VALID_MINOR_VERSION) ? + MBEDTLS_SSL_MIN_MINOR_VERSION : + MBEDTLS_SSL_MIN_VALID_MINOR_VERSION; conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION; conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION; #if defined(MBEDTLS_SSL_PROTO_DTLS) - if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + if (transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) { conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_2; + } #endif conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = - conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = - mbedtls_ssl_list_ciphersuites(); + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = + conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = + mbedtls_ssl_list_ciphersuites(); #if defined(MBEDTLS_X509_CRT_PARSE_C) conf->cert_profile = &mbedtls_x509_crt_profile_default; @@ -7165,89 +7036,88 @@ int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf, #endif } - return( 0 ); + return 0; } /* * Free mbedtls_ssl_config */ -void mbedtls_ssl_config_free( mbedtls_ssl_config *conf ) +void mbedtls_ssl_config_free(mbedtls_ssl_config *conf) { #if defined(MBEDTLS_DHM_C) - mbedtls_mpi_free( &conf->dhm_P ); - mbedtls_mpi_free( &conf->dhm_G ); + mbedtls_mpi_free(&conf->dhm_P); + mbedtls_mpi_free(&conf->dhm_G); #endif #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED) - if( conf->psk != NULL ) - { - mbedtls_platform_zeroize( conf->psk, conf->psk_len ); - mbedtls_free( conf->psk ); + if (conf->psk != NULL) { + mbedtls_platform_zeroize(conf->psk, conf->psk_len); + mbedtls_free(conf->psk); conf->psk = NULL; conf->psk_len = 0; } - if( conf->psk_identity != NULL ) - { - mbedtls_platform_zeroize( conf->psk_identity, conf->psk_identity_len ); - mbedtls_free( conf->psk_identity ); + if (conf->psk_identity != NULL) { + mbedtls_platform_zeroize(conf->psk_identity, conf->psk_identity_len); + mbedtls_free(conf->psk_identity); conf->psk_identity = NULL; conf->psk_identity_len = 0; } #endif #if defined(MBEDTLS_X509_CRT_PARSE_C) - ssl_key_cert_free( conf->key_cert ); + ssl_key_cert_free(conf->key_cert); #endif - mbedtls_platform_zeroize( conf, sizeof( mbedtls_ssl_config ) ); + mbedtls_platform_zeroize(conf, sizeof(mbedtls_ssl_config)); } #if defined(MBEDTLS_PK_C) && \ - ( defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C) ) + (defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C)) /* * Convert between MBEDTLS_PK_XXX and SSL_SIG_XXX */ -unsigned char mbedtls_ssl_sig_from_pk( mbedtls_pk_context *pk ) +unsigned char mbedtls_ssl_sig_from_pk(mbedtls_pk_context *pk) { #if defined(MBEDTLS_RSA_C) - if( mbedtls_pk_can_do( pk, MBEDTLS_PK_RSA ) ) - return( MBEDTLS_SSL_SIG_RSA ); + if (mbedtls_pk_can_do(pk, MBEDTLS_PK_RSA)) { + return MBEDTLS_SSL_SIG_RSA; + } #endif #if defined(MBEDTLS_ECDSA_C) - if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECDSA ) ) - return( MBEDTLS_SSL_SIG_ECDSA ); + if (mbedtls_pk_can_do(pk, MBEDTLS_PK_ECDSA)) { + return MBEDTLS_SSL_SIG_ECDSA; + } #endif - return( MBEDTLS_SSL_SIG_ANON ); + return MBEDTLS_SSL_SIG_ANON; } -unsigned char mbedtls_ssl_sig_from_pk_alg( mbedtls_pk_type_t type ) +unsigned char mbedtls_ssl_sig_from_pk_alg(mbedtls_pk_type_t type) { - switch( type ) { + switch (type) { case MBEDTLS_PK_RSA: - return( MBEDTLS_SSL_SIG_RSA ); + return MBEDTLS_SSL_SIG_RSA; case MBEDTLS_PK_ECDSA: case MBEDTLS_PK_ECKEY: - return( MBEDTLS_SSL_SIG_ECDSA ); + return MBEDTLS_SSL_SIG_ECDSA; default: - return( MBEDTLS_SSL_SIG_ANON ); + return MBEDTLS_SSL_SIG_ANON; } } -mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig ) +mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig(unsigned char sig) { - switch( sig ) - { + switch (sig) { #if defined(MBEDTLS_RSA_C) case MBEDTLS_SSL_SIG_RSA: - return( MBEDTLS_PK_RSA ); + return MBEDTLS_PK_RSA; #endif #if defined(MBEDTLS_ECDSA_C) case MBEDTLS_SSL_SIG_ECDSA: - return( MBEDTLS_PK_ECDSA ); + return MBEDTLS_PK_ECDSA; #endif default: - return( MBEDTLS_PK_NONE ); + return MBEDTLS_PK_NONE; } } #endif /* MBEDTLS_PK_C && ( MBEDTLS_RSA_C || MBEDTLS_ECDSA_C ) */ @@ -7256,35 +7126,35 @@ mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig ) defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) /* Find an entry in a signature-hash set matching a given hash algorithm. */ -mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find( mbedtls_ssl_sig_hash_set_t *set, - mbedtls_pk_type_t sig_alg ) +mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find(mbedtls_ssl_sig_hash_set_t *set, + mbedtls_pk_type_t sig_alg) { - switch( sig_alg ) - { + switch (sig_alg) { case MBEDTLS_PK_RSA: - return( set->rsa ); + return set->rsa; case MBEDTLS_PK_ECDSA: - return( set->ecdsa ); + return set->ecdsa; default: - return( MBEDTLS_MD_NONE ); + return MBEDTLS_MD_NONE; } } /* Add a signature-hash-pair to a signature-hash set */ -void mbedtls_ssl_sig_hash_set_add( mbedtls_ssl_sig_hash_set_t *set, - mbedtls_pk_type_t sig_alg, - mbedtls_md_type_t md_alg ) +void mbedtls_ssl_sig_hash_set_add(mbedtls_ssl_sig_hash_set_t *set, + mbedtls_pk_type_t sig_alg, + mbedtls_md_type_t md_alg) { - switch( sig_alg ) - { + switch (sig_alg) { case MBEDTLS_PK_RSA: - if( set->rsa == MBEDTLS_MD_NONE ) + if (set->rsa == MBEDTLS_MD_NONE) { set->rsa = md_alg; + } break; case MBEDTLS_PK_ECDSA: - if( set->ecdsa == MBEDTLS_MD_NONE ) + if (set->ecdsa == MBEDTLS_MD_NONE) { set->ecdsa = md_alg; + } break; default: @@ -7293,8 +7163,8 @@ void mbedtls_ssl_sig_hash_set_add( mbedtls_ssl_sig_hash_set_t *set, } /* Allow exactly one hash algorithm for each signature. */ -void mbedtls_ssl_sig_hash_set_const_hash( mbedtls_ssl_sig_hash_set_t *set, - mbedtls_md_type_t md_alg ) +void mbedtls_ssl_sig_hash_set_const_hash(mbedtls_ssl_sig_hash_set_t *set, + mbedtls_md_type_t md_alg) { set->rsa = md_alg; set->ecdsa = md_alg; @@ -7306,68 +7176,66 @@ void mbedtls_ssl_sig_hash_set_const_hash( mbedtls_ssl_sig_hash_set_t *set, /* * Convert from MBEDTLS_SSL_HASH_XXX to MBEDTLS_MD_XXX */ -mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash ) +mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash(unsigned char hash) { - switch( hash ) - { + switch (hash) { #if defined(MBEDTLS_MD5_C) case MBEDTLS_SSL_HASH_MD5: - return( MBEDTLS_MD_MD5 ); + return MBEDTLS_MD_MD5; #endif #if defined(MBEDTLS_SHA1_C) case MBEDTLS_SSL_HASH_SHA1: - return( MBEDTLS_MD_SHA1 ); + return MBEDTLS_MD_SHA1; #endif #if defined(MBEDTLS_SHA256_C) case MBEDTLS_SSL_HASH_SHA224: - return( MBEDTLS_MD_SHA224 ); + return MBEDTLS_MD_SHA224; case MBEDTLS_SSL_HASH_SHA256: - return( MBEDTLS_MD_SHA256 ); + return MBEDTLS_MD_SHA256; #endif #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) case MBEDTLS_SSL_HASH_SHA384: - return( MBEDTLS_MD_SHA384 ); + return MBEDTLS_MD_SHA384; #endif #if defined(MBEDTLS_SHA512_C) case MBEDTLS_SSL_HASH_SHA512: - return( MBEDTLS_MD_SHA512 ); + return MBEDTLS_MD_SHA512; #endif default: - return( MBEDTLS_MD_NONE ); + return MBEDTLS_MD_NONE; } } /* * Convert from MBEDTLS_MD_XXX to MBEDTLS_SSL_HASH_XXX */ -unsigned char mbedtls_ssl_hash_from_md_alg( int md ) +unsigned char mbedtls_ssl_hash_from_md_alg(int md) { - switch( md ) - { + switch (md) { #if defined(MBEDTLS_MD5_C) case MBEDTLS_MD_MD5: - return( MBEDTLS_SSL_HASH_MD5 ); + return MBEDTLS_SSL_HASH_MD5; #endif #if defined(MBEDTLS_SHA1_C) case MBEDTLS_MD_SHA1: - return( MBEDTLS_SSL_HASH_SHA1 ); + return MBEDTLS_SSL_HASH_SHA1; #endif #if defined(MBEDTLS_SHA256_C) case MBEDTLS_MD_SHA224: - return( MBEDTLS_SSL_HASH_SHA224 ); + return MBEDTLS_SSL_HASH_SHA224; case MBEDTLS_MD_SHA256: - return( MBEDTLS_SSL_HASH_SHA256 ); + return MBEDTLS_SSL_HASH_SHA256; #endif #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384) case MBEDTLS_MD_SHA384: - return( MBEDTLS_SSL_HASH_SHA384 ); + return MBEDTLS_SSL_HASH_SHA384; #endif #if defined(MBEDTLS_SHA512_C) case MBEDTLS_MD_SHA512: - return( MBEDTLS_SSL_HASH_SHA512 ); + return MBEDTLS_SSL_HASH_SHA512; #endif default: - return( MBEDTLS_SSL_HASH_NONE ); + return MBEDTLS_SSL_HASH_NONE; } } @@ -7376,30 +7244,34 @@ unsigned char mbedtls_ssl_hash_from_md_alg( int md ) * Check if a curve proposed by the peer is in our list. * Return 0 if we're willing to use it, -1 otherwise. */ -int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id ) +int mbedtls_ssl_check_curve(const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id) { const mbedtls_ecp_group_id *gid; - if( ssl->conf->curve_list == NULL ) - return( -1 ); + if (ssl->conf->curve_list == NULL) { + return -1; + } - for( gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++ ) - if( *gid == grp_id ) - return( 0 ); + for (gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++) { + if (*gid == grp_id) { + return 0; + } + } - return( -1 ); + return -1; } /* * Same as mbedtls_ssl_check_curve() but takes a TLS ID for the curve. */ -int mbedtls_ssl_check_curve_tls_id( const mbedtls_ssl_context *ssl, uint16_t tls_id ) +int mbedtls_ssl_check_curve_tls_id(const mbedtls_ssl_context *ssl, uint16_t tls_id) { const mbedtls_ecp_curve_info *curve_info = - mbedtls_ecp_curve_info_from_tls_id( tls_id ); - if( curve_info == NULL ) - return( -1 ); - return( mbedtls_ssl_check_curve( ssl, curve_info->grp_id ) ); + mbedtls_ecp_curve_info_from_tls_id(tls_id); + if (curve_info == NULL) { + return -1; + } + return mbedtls_ssl_check_curve(ssl, curve_info->grp_id); } #endif /* MBEDTLS_ECP_C */ @@ -7408,27 +7280,30 @@ int mbedtls_ssl_check_curve_tls_id( const mbedtls_ssl_context *ssl, uint16_t tls * Check if a hash proposed by the peer is in our list. * Return 0 if we're willing to use it, -1 otherwise. */ -int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl, - mbedtls_md_type_t md ) +int mbedtls_ssl_check_sig_hash(const mbedtls_ssl_context *ssl, + mbedtls_md_type_t md) { const int *cur; - if( ssl->conf->sig_hashes == NULL ) - return( -1 ); + if (ssl->conf->sig_hashes == NULL) { + return -1; + } - for( cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++ ) - if( *cur == (int) md ) - return( 0 ); + for (cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++) { + if (*cur == (int) md) { + return 0; + } + } - return( -1 ); + return -1; } #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */ #if defined(MBEDTLS_X509_CRT_PARSE_C) -int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert, - const mbedtls_ssl_ciphersuite_t *ciphersuite, - int cert_endpoint, - uint32_t *flags ) +int mbedtls_ssl_check_cert_usage(const mbedtls_x509_crt *cert, + const mbedtls_ssl_ciphersuite_t *ciphersuite, + int cert_endpoint, + uint32_t *flags) { int ret = 0; #if defined(MBEDTLS_X509_CHECK_KEY_USAGE) @@ -7447,11 +7322,9 @@ int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert, #endif #if defined(MBEDTLS_X509_CHECK_KEY_USAGE) - if( cert_endpoint == MBEDTLS_SSL_IS_SERVER ) - { + if (cert_endpoint == MBEDTLS_SSL_IS_SERVER) { /* Server part of the key exchange */ - switch( ciphersuite->key_exchange ) - { + switch (ciphersuite->key_exchange) { case MBEDTLS_KEY_EXCHANGE_RSA: case MBEDTLS_KEY_EXCHANGE_RSA_PSK: usage = MBEDTLS_X509_KU_KEY_ENCIPHERMENT; @@ -7476,15 +7349,12 @@ int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert, case MBEDTLS_KEY_EXCHANGE_ECJPAKE: usage = 0; } - } - else - { + } else { /* Client auth: we only implement rsa_sign and mbedtls_ecdsa_sign for now */ usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE; } - if( mbedtls_x509_crt_check_key_usage( cert, usage ) != 0 ) - { + if (mbedtls_x509_crt_check_key_usage(cert, usage) != 0) { *flags |= MBEDTLS_X509_BADCERT_KEY_USAGE; ret = -1; } @@ -7493,36 +7363,32 @@ int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert, #endif /* MBEDTLS_X509_CHECK_KEY_USAGE */ #if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) - if( cert_endpoint == MBEDTLS_SSL_IS_SERVER ) - { + if (cert_endpoint == MBEDTLS_SSL_IS_SERVER) { ext_oid = MBEDTLS_OID_SERVER_AUTH; - ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_SERVER_AUTH ); - } - else - { + ext_len = MBEDTLS_OID_SIZE(MBEDTLS_OID_SERVER_AUTH); + } else { ext_oid = MBEDTLS_OID_CLIENT_AUTH; - ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_CLIENT_AUTH ); + ext_len = MBEDTLS_OID_SIZE(MBEDTLS_OID_CLIENT_AUTH); } - if( mbedtls_x509_crt_check_extended_key_usage( cert, ext_oid, ext_len ) != 0 ) - { + if (mbedtls_x509_crt_check_extended_key_usage(cert, ext_oid, ext_len) != 0) { *flags |= MBEDTLS_X509_BADCERT_EXT_KEY_USAGE; ret = -1; } #endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */ - return( ret ); + return ret; } #endif /* MBEDTLS_X509_CRT_PARSE_C */ -int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md ) +int mbedtls_ssl_set_calc_verify_md(mbedtls_ssl_context *ssl, int md) { #if defined(MBEDTLS_SSL_PROTO_TLS1_2) - if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 ) + if (ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3) { return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH; + } - switch( md ) - { + switch (md) { #if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) #if defined(MBEDTLS_MD5_C) case MBEDTLS_SSL_HASH_MD5: @@ -7559,16 +7425,16 @@ int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md ) #if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \ defined(MBEDTLS_SSL_PROTO_TLS1_1) -int mbedtls_ssl_get_key_exchange_md_ssl_tls( mbedtls_ssl_context *ssl, - unsigned char *output, - unsigned char *data, size_t data_len ) +int mbedtls_ssl_get_key_exchange_md_ssl_tls(mbedtls_ssl_context *ssl, + unsigned char *output, + unsigned char *data, size_t data_len) { int ret = 0; mbedtls_md5_context mbedtls_md5; mbedtls_sha1_context mbedtls_sha1; - mbedtls_md5_init( &mbedtls_md5 ); - mbedtls_sha1_init( &mbedtls_sha1 ); + mbedtls_md5_init(&mbedtls_md5); + mbedtls_sha1_init(&mbedtls_sha1); /* * digitally-signed struct { @@ -7583,61 +7449,54 @@ int mbedtls_ssl_get_key_exchange_md_ssl_tls( mbedtls_ssl_context *ssl, * SHA(ClientHello.random + ServerHello.random * + ServerParams); */ - if( ( ret = mbedtls_md5_starts_ret( &mbedtls_md5 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_starts_ret", ret ); + if ((ret = mbedtls_md5_starts_ret(&mbedtls_md5)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md5_starts_ret", ret); goto exit; } - if( ( ret = mbedtls_md5_update_ret( &mbedtls_md5, - ssl->handshake->randbytes, 64 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_update_ret", ret ); + if ((ret = mbedtls_md5_update_ret(&mbedtls_md5, + ssl->handshake->randbytes, 64)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md5_update_ret", ret); goto exit; } - if( ( ret = mbedtls_md5_update_ret( &mbedtls_md5, data, data_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_update_ret", ret ); + if ((ret = mbedtls_md5_update_ret(&mbedtls_md5, data, data_len)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md5_update_ret", ret); goto exit; } - if( ( ret = mbedtls_md5_finish_ret( &mbedtls_md5, output ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_finish_ret", ret ); + if ((ret = mbedtls_md5_finish_ret(&mbedtls_md5, output)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md5_finish_ret", ret); goto exit; } - if( ( ret = mbedtls_sha1_starts_ret( &mbedtls_sha1 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_starts_ret", ret ); + if ((ret = mbedtls_sha1_starts_ret(&mbedtls_sha1)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_sha1_starts_ret", ret); goto exit; } - if( ( ret = mbedtls_sha1_update_ret( &mbedtls_sha1, - ssl->handshake->randbytes, 64 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_update_ret", ret ); + if ((ret = mbedtls_sha1_update_ret(&mbedtls_sha1, + ssl->handshake->randbytes, 64)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_sha1_update_ret", ret); goto exit; } - if( ( ret = mbedtls_sha1_update_ret( &mbedtls_sha1, data, - data_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_update_ret", ret ); + if ((ret = mbedtls_sha1_update_ret(&mbedtls_sha1, data, + data_len)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_sha1_update_ret", ret); goto exit; } - if( ( ret = mbedtls_sha1_finish_ret( &mbedtls_sha1, - output + 16 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_finish_ret", ret ); + if ((ret = mbedtls_sha1_finish_ret(&mbedtls_sha1, + output + 16)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_sha1_finish_ret", ret); goto exit; } exit: - mbedtls_md5_free( &mbedtls_md5 ); - mbedtls_sha1_free( &mbedtls_sha1 ); + mbedtls_md5_free(&mbedtls_md5); + mbedtls_sha1_free(&mbedtls_sha1); - if( ret != 0 ) - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); + if (ret != 0) { + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR); + } - return( ret ); + return ret; } #endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \ @@ -7647,81 +7506,75 @@ exit: defined(MBEDTLS_SSL_PROTO_TLS1_2) #if defined(MBEDTLS_USE_PSA_CRYPTO) -int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl, - unsigned char *hash, size_t *hashlen, - unsigned char *data, size_t data_len, - mbedtls_md_type_t md_alg ) +int mbedtls_ssl_get_key_exchange_md_tls1_2(mbedtls_ssl_context *ssl, + unsigned char *hash, size_t *hashlen, + unsigned char *data, size_t data_len, + mbedtls_md_type_t md_alg) { psa_status_t status; psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT; - psa_algorithm_t hash_alg = mbedtls_psa_translate_md( md_alg ); + psa_algorithm_t hash_alg = mbedtls_psa_translate_md(md_alg); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Perform PSA-based computation of digest of ServerKeyExchange" ) ); + MBEDTLS_SSL_DEBUG_MSG(3, ("Perform PSA-based computation of digest of ServerKeyExchange")); - if( ( status = psa_hash_setup( &hash_operation, - hash_alg ) ) != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_setup", status ); + if ((status = psa_hash_setup(&hash_operation, + hash_alg)) != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_RET(1, "psa_hash_setup", status); goto exit; } - if( ( status = psa_hash_update( &hash_operation, ssl->handshake->randbytes, - 64 ) ) != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_update", status ); + if ((status = psa_hash_update(&hash_operation, ssl->handshake->randbytes, + 64)) != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_RET(1, "psa_hash_update", status); goto exit; } - if( ( status = psa_hash_update( &hash_operation, - data, data_len ) ) != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_update", status ); + if ((status = psa_hash_update(&hash_operation, + data, data_len)) != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_RET(1, "psa_hash_update", status); goto exit; } - if( ( status = psa_hash_finish( &hash_operation, hash, PSA_HASH_MAX_SIZE, - hashlen ) ) != PSA_SUCCESS ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_finish", status ); - goto exit; + if ((status = psa_hash_finish(&hash_operation, hash, PSA_HASH_MAX_SIZE, + hashlen)) != PSA_SUCCESS) { + MBEDTLS_SSL_DEBUG_RET(1, "psa_hash_finish", status); + goto exit; } exit: - if( status != PSA_SUCCESS ) - { - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); - switch( status ) - { + if (status != PSA_SUCCESS) { + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR); + switch (status) { case PSA_ERROR_NOT_SUPPORTED: - return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE ); + return MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE; case PSA_ERROR_BAD_STATE: /* Intentional fallthrough */ case PSA_ERROR_BUFFER_TOO_SMALL: - return( MBEDTLS_ERR_MD_BAD_INPUT_DATA ); + return MBEDTLS_ERR_MD_BAD_INPUT_DATA; case PSA_ERROR_INSUFFICIENT_MEMORY: - return( MBEDTLS_ERR_MD_ALLOC_FAILED ); + return MBEDTLS_ERR_MD_ALLOC_FAILED; default: - return( MBEDTLS_ERR_MD_HW_ACCEL_FAILED ); + return MBEDTLS_ERR_MD_HW_ACCEL_FAILED; } } - return( 0 ); + return 0; } #else -int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl, - unsigned char *hash, size_t *hashlen, - unsigned char *data, size_t data_len, - mbedtls_md_type_t md_alg ) +int mbedtls_ssl_get_key_exchange_md_tls1_2(mbedtls_ssl_context *ssl, + unsigned char *hash, size_t *hashlen, + unsigned char *data, size_t data_len, + mbedtls_md_type_t md_alg) { int ret = 0; mbedtls_md_context_t ctx; - const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg ); - *hashlen = mbedtls_md_get_size( md_info ); + const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type(md_alg); + *hashlen = mbedtls_md_get_size(md_info); - MBEDTLS_SSL_DEBUG_MSG( 3, ( "Perform mbedtls-based computation of digest of ServerKeyExchange" ) ); + MBEDTLS_SSL_DEBUG_MSG(3, ("Perform mbedtls-based computation of digest of ServerKeyExchange")); - mbedtls_md_init( &ctx ); + mbedtls_md_init(&ctx); /* * digitally-signed struct { @@ -7730,40 +7583,36 @@ int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl, * ServerDHParams params; * }; */ - if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret ); + if ((ret = mbedtls_md_setup(&ctx, md_info, 0)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_setup", ret); goto exit; } - if( ( ret = mbedtls_md_starts( &ctx ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_starts", ret ); + if ((ret = mbedtls_md_starts(&ctx)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_starts", ret); goto exit; } - if( ( ret = mbedtls_md_update( &ctx, ssl->handshake->randbytes, 64 ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_update", ret ); + if ((ret = mbedtls_md_update(&ctx, ssl->handshake->randbytes, 64)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_update", ret); goto exit; } - if( ( ret = mbedtls_md_update( &ctx, data, data_len ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_update", ret ); + if ((ret = mbedtls_md_update(&ctx, data, data_len)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_update", ret); goto exit; } - if( ( ret = mbedtls_md_finish( &ctx, hash ) ) != 0 ) - { - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_finish", ret ); + if ((ret = mbedtls_md_finish(&ctx, hash)) != 0) { + MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_finish", ret); goto exit; } exit: - mbedtls_md_free( &ctx ); + mbedtls_md_free(&ctx); - if( ret != 0 ) - mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); + if (ret != 0) { + mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR); + } - return( ret ); + return ret; } #endif /* MBEDTLS_USE_PSA_CRYPTO */ |