ssl_test_lib: move common functions and variables
Move from ssl_*2.c to ssl_test_lib.c:
* Functions that have exactly identical definitions in the two
programs, and that don't reference the global variable opt which
has a different type in the client and in the server. Also declare
these functions in ssl_test_lib.h.
Move from ssl_*2.c to ssl_test_common_source.c:
* Functions that have exactly identical definitions in the two
programs, but access fields of the global variable opt which
has a different structure type in the client and in the server.
* The array ssl_sig_hashes_for_test, because its type is incomplete.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/programs/ssl/ssl_test_common_source.c b/programs/ssl/ssl_test_common_source.c
index 78b9331..d9e3607 100644
--- a/programs/ssl/ssl_test_common_source.c
+++ b/programs/ssl/ssl_test_common_source.c
@@ -23,3 +23,283 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
+
+#if defined(MBEDTLS_SSL_EXPORT_KEYS)
+int eap_tls_key_derivation( void *p_expkey,
+ const unsigned char *ms,
+ const unsigned char *kb,
+ size_t maclen,
+ size_t keylen,
+ size_t ivlen,
+ const unsigned char client_random[32],
+ const unsigned char server_random[32],
+ mbedtls_tls_prf_types tls_prf_type )
+{
+ eap_tls_keys *keys = (eap_tls_keys *)p_expkey;
+
+ ( ( void ) kb );
+ memcpy( keys->master_secret, ms, sizeof( keys->master_secret ) );
+ memcpy( keys->randbytes, client_random, 32 );
+ memcpy( keys->randbytes + 32, server_random, 32 );
+ keys->tls_prf_type = tls_prf_type;
+
+ if( opt.debug_level > 2 )
+ {
+ mbedtls_printf("exported maclen is %u\n", (unsigned)maclen);
+ mbedtls_printf("exported keylen is %u\n", (unsigned)keylen);
+ mbedtls_printf("exported ivlen is %u\n", (unsigned)ivlen);
+ }
+ return( 0 );
+}
+
+int nss_keylog_export( void *p_expkey,
+ const unsigned char *ms,
+ const unsigned char *kb,
+ size_t maclen,
+ size_t keylen,
+ size_t ivlen,
+ const unsigned char client_random[32],
+ const unsigned char server_random[32],
+ mbedtls_tls_prf_types tls_prf_type )
+{
+ char nss_keylog_line[ 200 ];
+ size_t const client_random_len = 32;
+ size_t const master_secret_len = 48;
+ size_t len = 0;
+ size_t j;
+ int ret = 0;
+
+ ((void) p_expkey);
+ ((void) kb);
+ ((void) maclen);
+ ((void) keylen);
+ ((void) ivlen);
+ ((void) server_random);
+ ((void) tls_prf_type);
+
+ len += sprintf( nss_keylog_line + len,
+ "%s", "CLIENT_RANDOM " );
+
+ for( j = 0; j < client_random_len; j++ )
+ {
+ len += sprintf( nss_keylog_line + len,
+ "%02x", client_random[j] );
+ }
+
+ len += sprintf( nss_keylog_line + len, " " );
+
+ for( j = 0; j < master_secret_len; j++ )
+ {
+ len += sprintf( nss_keylog_line + len,
+ "%02x", ms[j] );
+ }
+
+ len += sprintf( nss_keylog_line + len, "\n" );
+ nss_keylog_line[ len ] = '\0';
+
+ mbedtls_printf( "\n" );
+ mbedtls_printf( "---------------- NSS KEYLOG -----------------\n" );
+ mbedtls_printf( "%s", nss_keylog_line );
+ mbedtls_printf( "---------------------------------------------\n" );
+
+ if( opt.nss_keylog_file != NULL )
+ {
+ FILE *f;
+
+ if( ( f = fopen( opt.nss_keylog_file, "a" ) ) == NULL )
+ {
+ ret = -1;
+ goto exit;
+ }
+
+ if( fwrite( nss_keylog_line, 1, len, f ) != len )
+ {
+ ret = -1;
+ fclose( f );
+ goto exit;
+ }
+
+ fclose( f );
+ }
+
+exit:
+ mbedtls_platform_zeroize( nss_keylog_line,
+ sizeof( nss_keylog_line ) );
+ return( ret );
+}
+
+#if defined( MBEDTLS_SSL_DTLS_SRTP )
+int dtls_srtp_key_derivation( void *p_expkey,
+ const unsigned char *ms,
+ const unsigned char *kb,
+ size_t maclen,
+ size_t keylen,
+ size_t ivlen,
+ const unsigned char client_random[32],
+ const unsigned char server_random[32],
+ mbedtls_tls_prf_types tls_prf_type )
+{
+ dtls_srtp_keys *keys = (dtls_srtp_keys *)p_expkey;
+
+ ( ( void ) kb );
+ memcpy( keys->master_secret, ms, sizeof( keys->master_secret ) );
+ memcpy( keys->randbytes, client_random, 32 );
+ memcpy( keys->randbytes + 32, server_random, 32 );
+ keys->tls_prf_type = tls_prf_type;
+
+ if( opt.debug_level > 2 )
+ {
+ mbedtls_printf( "exported maclen is %u\n", (unsigned) maclen );
+ mbedtls_printf( "exported keylen is %u\n", (unsigned) keylen );
+ mbedtls_printf( "exported ivlen is %u\n", (unsigned) ivlen );
+ }
+ return( 0 );
+}
+#endif /* MBEDTLS_SSL_DTLS_SRTP */
+
+#endif /* MBEDTLS_SSL_EXPORT_KEYS */
+
+#if defined(MBEDTLS_SSL_RECORD_CHECKING)
+int ssl_check_record( mbedtls_ssl_context const *ssl,
+ unsigned char const *buf, size_t len )
+{
+ int ret;
+ unsigned char *tmp_buf;
+
+ /* Record checking may modify the input buffer,
+ * so make a copy. */
+ tmp_buf = mbedtls_calloc( 1, len );
+ if( tmp_buf == NULL )
+ return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+ memcpy( tmp_buf, buf, len );
+
+ ret = mbedtls_ssl_check_record( ssl, tmp_buf, len );
+ if( ret != MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE )
+ {
+ int ret_repeated;
+
+ /* Test-only: Make sure that mbedtls_ssl_check_record()
+ * doesn't alter state. */
+ memcpy( tmp_buf, buf, len ); /* Restore buffer */
+ ret_repeated = mbedtls_ssl_check_record( ssl, tmp_buf, len );
+ if( ret != ret_repeated )
+ {
+ mbedtls_printf( "mbedtls_ssl_check_record() returned inconsistent results.\n" );
+ return( -1 );
+ }
+
+ switch( ret )
+ {
+ case 0:
+ break;
+
+ case MBEDTLS_ERR_SSL_INVALID_RECORD:
+ if( opt.debug_level > 1 )
+ mbedtls_printf( "mbedtls_ssl_check_record() detected invalid record.\n" );
+ break;
+
+ case MBEDTLS_ERR_SSL_INVALID_MAC:
+ if( opt.debug_level > 1 )
+ mbedtls_printf( "mbedtls_ssl_check_record() detected unauthentic record.\n" );
+ break;
+
+ case MBEDTLS_ERR_SSL_UNEXPECTED_RECORD:
+ if( opt.debug_level > 1 )
+ mbedtls_printf( "mbedtls_ssl_check_record() detected unexpected record.\n" );
+ break;
+
+ default:
+ mbedtls_printf( "mbedtls_ssl_check_record() failed fatally with -%#04x.\n", (unsigned int) -ret );
+ return( -1 );
+ }
+
+ /* Regardless of the outcome, forward the record to the stack. */
+ }
+
+ mbedtls_free( tmp_buf );
+
+ return( 0 );
+}
+#endif /* MBEDTLS_SSL_RECORD_CHECKING */
+
+int recv_cb( void *ctx, unsigned char *buf, size_t len )
+{
+ io_ctx_t *io_ctx = (io_ctx_t*) ctx;
+ size_t recv_len;
+ int ret;
+
+ if( opt.nbio == 2 )
+ ret = delayed_recv( io_ctx->net, buf, len );
+ else
+ ret = mbedtls_net_recv( io_ctx->net, buf, len );
+ if( ret < 0 )
+ return( ret );
+ recv_len = (size_t) ret;
+
+ if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
+ {
+ /* Here's the place to do any datagram/record checking
+ * in between receiving the packet from the underlying
+ * transport and passing it on to the TLS stack. */
+#if defined(MBEDTLS_SSL_RECORD_CHECKING)
+ if( ssl_check_record( io_ctx->ssl, buf, recv_len ) != 0 )
+ return( -1 );
+#endif /* MBEDTLS_SSL_RECORD_CHECKING */
+ }
+
+ return( (int) recv_len );
+}
+
+int recv_timeout_cb( void *ctx, unsigned char *buf, size_t len,
+ uint32_t timeout )
+{
+ io_ctx_t *io_ctx = (io_ctx_t*) ctx;
+ int ret;
+ size_t recv_len;
+
+ ret = mbedtls_net_recv_timeout( io_ctx->net, buf, len, timeout );
+ if( ret < 0 )
+ return( ret );
+ recv_len = (size_t) ret;
+
+ if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
+ {
+ /* Here's the place to do any datagram/record checking
+ * in between receiving the packet from the underlying
+ * transport and passing it on to the TLS stack. */
+#if defined(MBEDTLS_SSL_RECORD_CHECKING)
+ if( ssl_check_record( io_ctx->ssl, buf, recv_len ) != 0 )
+ return( -1 );
+#endif /* MBEDTLS_SSL_RECORD_CHECKING */
+ }
+
+ return( (int) recv_len );
+}
+
+int send_cb( void *ctx, unsigned char const *buf, size_t len )
+{
+ io_ctx_t *io_ctx = (io_ctx_t*) ctx;
+
+ if( opt.nbio == 2 )
+ return( delayed_send( io_ctx->net, buf, len ) );
+
+ return( mbedtls_net_send( io_ctx->net, buf, len ) );
+}
+
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+int ssl_sig_hashes_for_test[] = {
+#if defined(MBEDTLS_SHA512_C)
+ MBEDTLS_MD_SHA512,
+ MBEDTLS_MD_SHA384,
+#endif
+#if defined(MBEDTLS_SHA256_C)
+ MBEDTLS_MD_SHA256,
+ MBEDTLS_MD_SHA224,
+#endif
+#if defined(MBEDTLS_SHA1_C)
+ /* Allow SHA-1 as we use it extensively in tests. */
+ MBEDTLS_MD_SHA1,
+#endif
+ MBEDTLS_MD_NONE
+};
+#endif /* MBEDTLS_X509_CRT_PARSE_C */