diff options
Diffstat (limited to 'thirdparty/mbedtls/library/ssl_cli.c')
-rw-r--r-- | thirdparty/mbedtls/library/ssl_cli.c | 94 |
1 files changed, 48 insertions, 46 deletions
diff --git a/thirdparty/mbedtls/library/ssl_cli.c b/thirdparty/mbedtls/library/ssl_cli.c index 72351c9757..b40ddb70b4 100644 --- a/thirdparty/mbedtls/library/ssl_cli.c +++ b/thirdparty/mbedtls/library/ssl_cli.c @@ -21,13 +21,7 @@ #if defined(MBEDTLS_SSL_CLI_C) -#if defined(MBEDTLS_PLATFORM_C) #include "mbedtls/platform.h" -#else -#include <stdlib.h> -#define mbedtls_calloc calloc -#define mbedtls_free free -#endif #include "mbedtls/ssl.h" #include "mbedtls/ssl_internal.h" @@ -174,7 +168,7 @@ static int ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl, *olen = 0; - /* We're always including an TLS_EMPTY_RENEGOTIATION_INFO_SCSV in the + /* We're always including a TLS_EMPTY_RENEGOTIATION_INFO_SCSV in the * initial ClientHello, in which case also adding the renegotiation * info extension is NOT RECOMMENDED as per RFC 5746 Section 3.4. */ if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS ) @@ -1004,9 +998,12 @@ static int ssl_write_client_hello( mbedtls_ssl_context *ssl ) return( MBEDTLS_ERR_SSL_NO_RNG ); } + int renegotiating = 0; #if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) + if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ) + renegotiating = 1; #endif + if( !renegotiating ) { ssl->major_ver = ssl->conf->min_major_ver; ssl->minor_ver = ssl->conf->min_minor_ver; @@ -1092,9 +1089,7 @@ static int ssl_write_client_hello( mbedtls_ssl_context *ssl ) * RFC 5077 section 3.4: "When presenting a ticket, the client MAY * generate and include a Session ID in the TLS ClientHello." */ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) -#endif + if( !renegotiating ) { if( ssl->session_negotiate->ticket != NULL && ssl->session_negotiate->ticket_len != 0 ) @@ -1209,9 +1204,7 @@ static int ssl_write_client_hello( mbedtls_ssl_context *ssl ) /* * Add TLS_EMPTY_RENEGOTIATION_INFO_SCSV */ -#if defined(MBEDTLS_SSL_RENEGOTIATION) - if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE ) -#endif + if( !renegotiating ) { MBEDTLS_SSL_DEBUG_MSG( 3, ( "adding EMPTY_RENEGOTIATION_INFO_SCSV" ) ); MBEDTLS_SSL_CHK_BUF_PTR( p, end, 2 ); @@ -2062,6 +2055,30 @@ static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl ) } #endif /* MBEDTLS_SSL_PROTO_DTLS */ +static int is_compression_bad( mbedtls_ssl_context *ssl, unsigned char comp ) +{ + int bad_comp = 0; + + /* Suppress warnings in some configurations */ + (void) ssl; +#if defined(MBEDTLS_ZLIB_SUPPORT) + /* See comments in ssl_write_client_hello() */ +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + comp != MBEDTLS_SSL_COMPRESS_NULL ) + bad_comp = 1; +#endif + + if( comp != MBEDTLS_SSL_COMPRESS_NULL && + comp != MBEDTLS_SSL_COMPRESS_DEFLATE ) + bad_comp = 1; +#else /* MBEDTLS_ZLIB_SUPPORT */ + if( comp != MBEDTLS_SSL_COMPRESS_NULL ) + bad_comp = 1; +#endif/* MBEDTLS_ZLIB_SUPPORT */ + return bad_comp; +} + MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_parse_server_hello( mbedtls_ssl_context *ssl ) { @@ -2070,9 +2087,6 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl ) size_t ext_len; unsigned char *buf, *ext; unsigned char comp; -#if defined(MBEDTLS_ZLIB_SUPPORT) - int accept_comp; -#endif #if defined(MBEDTLS_SSL_RENEGOTIATION) int renegotiation_info_seen = 0; #endif @@ -2241,20 +2255,7 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl ) */ comp = buf[37 + n]; -#if defined(MBEDTLS_ZLIB_SUPPORT) - /* See comments in ssl_write_client_hello() */ -#if defined(MBEDTLS_SSL_PROTO_DTLS) - if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) - accept_comp = 0; - else -#endif - accept_comp = 1; - - if( comp != MBEDTLS_SSL_COMPRESS_NULL && - ( comp != MBEDTLS_SSL_COMPRESS_DEFLATE || accept_comp == 0 ) ) -#else /* MBEDTLS_ZLIB_SUPPORT */ - if( comp != MBEDTLS_SSL_COMPRESS_NULL ) -#endif/* MBEDTLS_ZLIB_SUPPORT */ + if( is_compression_bad( ssl, comp ) ) { MBEDTLS_SSL_DEBUG_MSG( 1, ( "server hello, bad compression: %d", comp ) ); @@ -2687,7 +2688,7 @@ static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl ) grp_id = ssl->handshake->ecdh_ctx.grp.id; #else grp_id = ssl->handshake->ecdh_ctx.grp_id; -#endif +#endif /* MBEDTLS_ECDH_LEGACY_CONTEXT */ curve_info = mbedtls_ecp_curve_info_from_grp_id( grp_id ); if( curve_info == NULL ) @@ -2700,11 +2701,12 @@ static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_ECP_C) if( mbedtls_ssl_check_curve( ssl, grp_id ) != 0 ) + return( -1 ); #else if( ssl->handshake->ecdh_ctx.grp.nbits < 163 || ssl->handshake->ecdh_ctx.grp.nbits > 521 ) -#endif return( -1 ); +#endif /* MBEDTLS_ECP_C */ MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, MBEDTLS_DEBUG_ECDH_QP ); @@ -2858,8 +2860,8 @@ static int ssl_parse_server_psk_hint( mbedtls_ssl_context *ssl, } /* - * Note: we currently ignore the PKS identity hint, as we only allow one - * PSK to be provisionned on the client. This could be changed later if + * Note: we currently ignore the PSK identity hint, as we only allow one + * PSK to be provisioned on the client. This could be changed later if * someone needs that feature. */ *p += len; @@ -3452,23 +3454,23 @@ start_processing: #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED) if( ssl->handshake->ecrs_enabled ) rs_ctx = &ssl->handshake->ecrs_ctx.pk; -#endif +#endif /* MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED */ if( ( ret = mbedtls_pk_verify_restartable( peer_pk, md_alg, hash, hashlen, p, sig_len, rs_ctx ) ) != 0 ) { #if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED) - if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS ) -#endif - mbedtls_ssl_send_alert_message( - ssl, - MBEDTLS_SSL_ALERT_LEVEL_FATAL, - MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR ); - MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret ); -#if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED) if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS ) - ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS; -#endif + { + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret ); + return( MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS ); + } +#endif /* MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED */ + mbedtls_ssl_send_alert_message( + ssl, + MBEDTLS_SSL_ALERT_LEVEL_FATAL, + MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR ); + MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret ); return( ret ); } |