Make function mbedtls_ssl_set_hostname(...) as optional

Now function mbedtls_ssl_set_hostname is compile-time configurable
in config.h with define MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION.
This affects to many x509 API's. See config.h for details.

configs/baremetal.h

@@ -128,6 +128,7 @@
 #define MBEDTLS_X509_ON_DEMAND_PARSING
 #define MBEDTLS_X509_ALWAYS_FLUSH
 #define MBEDTLS_ASN1_PARSE_C
+#define MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 
 /* X.509 CSR writing */
 #define MBEDTLS_X509_CSR_WRITE_C

doxygen/mbedtls.doxyfile

@@ -1624,7 +1624,8 @@ PREDEFINED             = WIN32 \
                          ENABLE_PLUGIN \
                          ENABLE_MANAGEMENT \
                          ENABLE_OCC \
-                         HAVE_GETTIMEOFDAY
+                         HAVE_GETTIMEOFDAY \
+                         DOXYGEN_ONLY
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
 # this tag can be used to specify a list of macro names that should be expanded.

include/mbedtls/config.h

@@ -1978,6 +1978,44 @@
  */
 //#define MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID
 
+/**
+ * \def MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+ *
+ * Remove hostname verification from APIs related to X.509 certificate validation.
+ *
+ * \warning Uncommenting this affects parsing and verification of
+ * X.509 certificate by leaving Common Name and Subject Alternative Name fields out
+ * of parsing and verification.
+ *
+ * Affected API's:
+ *  - mbedtls_ssl_set_hostname() not available.
+ *  - mbedtls_x509_crt_get_subject_alt_names() not available.
+ *  - mbedtls_x509_crt_parse_der(): Subject Alternative Name field
+ *    is not parsed.
+ *  - mbedtls_x509_crt_parse_der_nocopy(): Subject Alternative Name field
+ *    is not parsed.
+ *  - mbedtls_x509_crt_parse(): Subject Alternative Name field
+ *    is not parsed.
+ *  - mbedtls_x509_crt_parse_file(): Subject Alternative Name field
+ *    is not parsed.
+ *  - mbedtls_x509_crt_parse_path(): Subject Alternative Name field
+ *    is not parsed.
+ *  - mbedtls_x509_crt_info(): Subject Alternative Name field
+ *    is not parsed.
+ *  - mbedtls_x509_crt_verify(): param \c cn is omitted from the API.
+ *  - mbedtls_x509_crt_verify_with_profile(): param \c cn is omitted from the API.
+ *  - mbedtls_x509_crt_verify_restartable(): param \c cn is omitted from the API.
+ *  -
+ *
+ *  Affected structs
+ *   - ::mbedtls_x509_crt_frame: subject_alt_raw is defined out.
+ *   - ::mbedtls_x509_crt: subject_alt_names is defined out.
+ *
+ * Uncomment this to save some code and RAM on constrained systems which
+ * don't need hostname verification.
+ */
+//#define MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+
 /**
  * \def MBEDTLS_X509_RSASSA_PSS_SUPPORT
  *

include/mbedtls/ssl.h

@@ -1386,10 +1386,10 @@ struct mbedtls_ssl_context
     /*
      * User settings
      */
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     char *hostname;             /*!< expected peer CN for verification
                                      (and SNI if available)                 */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
+#endif /* MBEDTLS_X509_CRT_PARSE_C && !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 #if defined(MBEDTLS_SSL_ALPN)
     const char *alpn_chosen;    /*!<  negotiated protocol                   */
@@ -2921,7 +2921,7 @@ void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf,
                                   const int *hashes );
 #endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
 
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 /**
  * \brief          Set or reset the hostname to check against the received
  *                 server certificate. It sets the ServerName TLS extension,
@@ -2941,7 +2941,7 @@ void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf,
  *                 On too long input failure, old hostname is unchanged.
  */
 int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname );
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
+#endif /* MBEDTLS_X509_CRT_PARSE_C && !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
 /**

include/mbedtls/x509_crt.h

@@ -96,9 +96,10 @@ typedef struct mbedtls_x509_crt_frame
     mbedtls_x509_buf_raw v3_ext;            /**< The raw data for the extension list in the certificate.
                                              *   Might be useful for manual inspection of extensions that
                                              *   Mbed TLS doesn't yet support.                                  */
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     mbedtls_x509_buf_raw subject_alt_raw;   /**< The raw data for the SubjectAlternativeNames extension.        */
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
     mbedtls_x509_buf_raw ext_key_usage_raw; /**< The raw data for the ExtendedKeyUsage extension.               */
-
 } mbedtls_x509_crt_frame;
 
 /**
@@ -140,7 +141,9 @@ typedef struct mbedtls_x509_crt
     mbedtls_x509_buf subject_id;        /**< Optional X.509 v2/v3 subject unique identifier. */
 #endif /* !MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
     mbedtls_x509_buf v3_ext;            /**< Optional X.509 v3 extensions.  */
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     mbedtls_x509_sequence subject_alt_names;    /**< Optional list of Subject Alternative Names (Only dNSName supported). */
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
     int ext_types;              /**< Bit string containing detected and parsed extensions */
     int ca_istrue;              /**< Optional Basic Constraint extension value: 1 if this certificate belongs to a CA, 0 otherwise. */
@@ -499,7 +502,10 @@ int mbedtls_x509_crt_verify_info( char *buf, size_t size, const char *prefix,
 int mbedtls_x509_crt_verify( mbedtls_x509_crt *crt,
                      mbedtls_x509_crt *trust_ca,
                      mbedtls_x509_crl *ca_crl,
-                     const char *cn, uint32_t *flags,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION) || defined(DOXYGEN_ONLY)
+                     const char *cn,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION || defined(DOXYGEN_ONLY) */
+                     uint32_t *flags,
                      int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
                      void *p_vrfy );
 
@@ -534,7 +540,10 @@ int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt,
                      mbedtls_x509_crt *trust_ca,
                      mbedtls_x509_crl *ca_crl,
                      const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION) || defined(DOXYGEN_ONLY)
+                     const char *cn,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION || defined(DOXYGEN_ONLY) */
+                     uint32_t *flags,
                      int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
                      void *p_vrfy );
 
@@ -564,7 +573,10 @@ int mbedtls_x509_crt_verify_restartable( mbedtls_x509_crt *crt,
                      mbedtls_x509_crt *trust_ca,
                      mbedtls_x509_crl *ca_crl,
                      const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION) || defined(DOXYGEN_ONLY)
+                     const char *cn,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION || defined(DOXYGEN_ONLY) */
+                     uint32_t *flags,
                      int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
                      void *p_vrfy,
                      mbedtls_x509_crt_restart_ctx *rs_ctx );
@@ -747,6 +759,7 @@ int mbedtls_x509_crt_get_subject( mbedtls_x509_crt const *crt,
 int mbedtls_x509_crt_get_issuer( mbedtls_x509_crt const *crt,
                                  mbedtls_x509_name **issuer );
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 /**
  * \brief           Request the subject alternative name of a CRT, presented
  *                  as a dynamically allocated linked list.
@@ -771,6 +784,7 @@ int mbedtls_x509_crt_get_issuer( mbedtls_x509_crt const *crt,
  */
 int mbedtls_x509_crt_get_subject_alt_names( mbedtls_x509_crt const *crt,
                                             mbedtls_x509_sequence **subj_alt );
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 /**
  * \brief           Request the ExtendedKeyUsage extension of a CRT,

library/ssl_cli.c

@@ -51,7 +51,7 @@
 #include "mbedtls/platform_util.h"
 #endif
 
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
+#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 static void ssl_write_hostname_ext( mbedtls_ssl_context *ssl,
                                     unsigned char *buf,
                                     size_t *olen )
@@ -119,7 +119,7 @@ static void ssl_write_hostname_ext( mbedtls_ssl_context *ssl,
 
     *olen = hostname_len + 9;
 }
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
+#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION && !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
 static void ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl,
@@ -1057,7 +1057,7 @@ static int ssl_write_client_hello( mbedtls_ssl_context *ssl )
 
     // First write extensions, then the total length
     //
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
+#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     ssl_write_hostname_ext( ssl, p + 2 + ext_len, &olen );
     ext_len += olen;
 #endif

library/ssl_tls.c

@@ -6910,7 +6910,9 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl,
         chain,
         ca_chain, ca_crl,
         ssl->conf->cert_profile,
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
         ssl->hostname,
+#endif /* MBEDTLS_X509_CRT_PARSE_C && !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
         &ssl->session_negotiate->verify_result,
         ssl->conf->f_vrfy, ssl->conf->p_vrfy, rs_ctx );
 
@@ -8991,7 +8993,7 @@ void mbedtls_ssl_conf_curves( mbedtls_ssl_config *conf,
 #endif /* MBEDTLS_SSL_CONF_SINGLE_EC */
 #endif /* MBEDTLS_ECP_C */
 
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname )
 {
     /* Initialize to suppress unnecessary compiler warning */
@@ -9035,7 +9037,7 @@ int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname )
 
     return( 0 );
 }
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
+#endif /* MBEDTLS_X509_CRT_PARSE_C && !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
 void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf,
@@ -11789,7 +11791,7 @@ void mbedtls_ssl_free( mbedtls_ssl_context *ssl )
         mbedtls_free( ssl->session );
     }
 
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     if( ssl->hostname != NULL )
     {
         mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) );

library/version_features.c

@@ -573,6 +573,9 @@ static const char *features[] = {
 #if defined(MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID)
     "MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID",
 #endif /* MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
+#if defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+    "MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION",
+#endif /* MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
     "MBEDTLS_X509_RSASSA_PSS_SUPPORT",
 #endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */

library/x509.c

@@ -1250,7 +1250,11 @@ int mbedtls_x509_self_test( int verbose )
     if( verbose != 0 )
         mbedtls_printf( "passed\n  X.509 signature verify: ");
 
-    ret = mbedtls_x509_crt_verify( &clicert, &cacert, NULL, NULL, &flags, NULL, NULL );
+    ret = mbedtls_x509_crt_verify( &clicert, &cacert, NULL,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+    NULL,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+    &flags, NULL, NULL );
     if( ret != 0 )
     {
         if( verbose != 0 )

library/x509_crt.c

@@ -102,8 +102,10 @@ static int x509_crt_subject_from_frame( mbedtls_x509_crt_frame const *frame,
                                         mbedtls_x509_name *subject );
 static int x509_crt_issuer_from_frame( mbedtls_x509_crt_frame const *frame,
                                        mbedtls_x509_name *issuer );
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 static int x509_crt_subject_alt_from_frame( mbedtls_x509_crt_frame const *frame,
                                         mbedtls_x509_sequence *subject_alt );
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 static int x509_crt_ext_key_usage_from_frame( mbedtls_x509_crt_frame const *frame,
                                         mbedtls_x509_sequence *ext_key_usage );
 
@@ -333,6 +335,7 @@ static void x509_crt_cache_free( mbedtls_x509_crt_cache *cache )
     memset( cache, 0, sizeof( *cache ) );
 }
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 int mbedtls_x509_crt_get_subject_alt_names( mbedtls_x509_crt const *crt,
                                             mbedtls_x509_sequence **subj_alt )
 {
@@ -355,6 +358,7 @@ int mbedtls_x509_crt_get_subject_alt_names( mbedtls_x509_crt const *crt,
     *subj_alt = seq;
     return( ret );
 }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 int mbedtls_x509_crt_get_ext_key_usage( mbedtls_x509_crt const *crt,
                                         mbedtls_x509_sequence **ext_key_usage )
@@ -613,6 +617,7 @@ static int x509_profile_check_key( const mbedtls_x509_crt_profile *profile,
     return( -1 );
 }
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 /*
  * Return 0 if name matches wildcard, -1 otherwise
  */
@@ -648,6 +653,7 @@ static int x509_check_wildcard( char const *cn,
 
     return( -1 );
 }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 /*
  * Reset (init or clear) a verify_chain
@@ -934,6 +940,7 @@ static int x509_get_ext_key_usage( unsigned char **p,
                                                (void *) &ext_key_usage ) );
 }
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 /*
  * SubjectAltName ::= GeneralNames
  *
@@ -972,6 +979,7 @@ static int x509_get_subject_alt_name( unsigned char *p,
                                                asn1_build_sequence_cb,
                                                (void *) &subject_alt_name ) );
 }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 /*
  * X.509 v3 extensions
@@ -1077,10 +1085,10 @@ static int x509_crt_get_ext_cb( void *ctx,
             break;
 
         case MBEDTLS_X509_EXT_SUBJECT_ALT_NAME:
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
             /* Copy reference to raw subject alt name data. */
             frame->subject_alt_raw.p   = p;
             frame->subject_alt_raw.len = end_ext_octet - p;
-
             ret = mbedtls_asn1_traverse_sequence_of( &p, end_ext_octet,
                                       MBEDTLS_ASN1_TAG_CLASS_MASK,
                                       MBEDTLS_ASN1_CONTEXT_SPECIFIC,
@@ -1089,6 +1097,7 @@ static int x509_crt_get_ext_cb( void *ctx,
                                       NULL, NULL );
             if( ret != 0 )
                 goto err;
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
             break;
 
         case MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE:
@@ -1470,6 +1479,7 @@ static int x509_crt_issuer_from_frame( mbedtls_x509_crt_frame const *frame,
                                    issuer ) );
 }
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 static int x509_crt_subject_alt_from_frame( mbedtls_x509_crt_frame const *frame,
                                             mbedtls_x509_sequence *subject_alt )
 {
@@ -1487,6 +1497,7 @@ static int x509_crt_subject_alt_from_frame( mbedtls_x509_crt_frame const *frame,
         ret += MBEDTLS_ERR_X509_INVALID_EXTENSIONS;
     return( ret );
 }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 static int x509_crt_ext_key_usage_from_frame( mbedtls_x509_crt_frame const *frame,
                                         mbedtls_x509_sequence *ext_key_usage )
@@ -1663,9 +1674,11 @@ static int x509_crt_parse_der_core( mbedtls_x509_crt *crt,
     if( ret != 0 )
         goto exit;
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     ret = x509_crt_subject_alt_from_frame( frame, &crt->subject_alt_names );
     if( ret != 0 )
         goto exit;
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
     ret = x509_crt_ext_key_usage_from_frame( frame, &crt->ext_key_usage );
     if( ret != 0 )
@@ -2104,6 +2117,7 @@ static int x509_crt_get_sig_info( mbedtls_x509_crt_frame const *frame,
 }
 
 #if !defined(MBEDTLS_X509_REMOVE_INFO)
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 static int x509_info_subject_alt_name( char **buf, size_t *size,
                                        const mbedtls_x509_sequence *subject_alt_name )
 {
@@ -2141,6 +2155,7 @@ static int x509_info_subject_alt_name( char **buf, size_t *size,
 
     return( 0 );
 }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 #define PRINT_ITEM(i)                           \
     {                                           \
@@ -2249,7 +2264,11 @@ int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix,
     mbedtls_pk_context pk;
 
     mbedtls_x509_name *issuer = NULL, *subject = NULL;
-    mbedtls_x509_sequence *ext_key_usage = NULL, *subject_alt_names = NULL;
+    mbedtls_x509_sequence *ext_key_usage = NULL;
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+    mbedtls_x509_sequence *subject_alt_names = NULL;
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+
     mbedtls_x509_crt_sig_info sig_info;
 
     p = buf;
@@ -2287,12 +2306,14 @@ int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix,
         goto cleanup;
     }
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     ret = mbedtls_x509_crt_get_subject_alt_names( crt, &subject_alt_names );
     if( ret != 0 )
     {
         ret = MBEDTLS_ERR_X509_FATAL_ERROR;
         goto cleanup;
     }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
     ret = mbedtls_x509_crt_get_ext_key_usage( crt, &ext_key_usage );
     if( ret != 0 )
@@ -2391,6 +2412,7 @@ int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix,
         }
     }
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     if( frame.ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME )
     {
         ret = mbedtls_snprintf( p, n, "\n%ssubject alt name  : ", prefix );
@@ -2400,6 +2422,7 @@ int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix,
                                             subject_alt_names ) ) != 0 )
             return( ret );
     }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
     if( frame.ext_types & MBEDTLS_X509_EXT_NS_CERT_TYPE )
     {
@@ -2441,7 +2464,9 @@ cleanup:
     mbedtls_x509_name_free( issuer );
     mbedtls_x509_name_free( subject );
     mbedtls_x509_sequence_free( ext_key_usage );
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     mbedtls_x509_sequence_free( subject_alt_names );
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
     return( ret );
 }
@@ -3399,6 +3424,7 @@ find_parent:
     }
 }
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
 /*
  * Check for CN match
  */
@@ -3510,6 +3536,7 @@ static int x509_crt_verify_name( const mbedtls_x509_crt *crt,
     *flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH;
     return( ret );
 }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 /*
  * Merge the flags for all certs in the chain, after calling callback
@@ -3546,12 +3573,19 @@ static int x509_crt_merge_flags_with_cb(
 int mbedtls_x509_crt_verify( mbedtls_x509_crt *crt,
                      mbedtls_x509_crt *trust_ca,
                      mbedtls_x509_crl *ca_crl,
-                     const char *cn, uint32_t *flags,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+                     const char *cn,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+                     uint32_t *flags,
                      int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
                      void *p_vrfy )
 {
     return( mbedtls_x509_crt_verify_restartable( crt, trust_ca, ca_crl,
-                &mbedtls_x509_crt_profile_default, cn, flags,
+                &mbedtls_x509_crt_profile_default,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+                cn,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+                flags,
                 f_vrfy, p_vrfy, NULL ) );
 }
 
@@ -3562,12 +3596,19 @@ int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt,
                      mbedtls_x509_crt *trust_ca,
                      mbedtls_x509_crl *ca_crl,
                      const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+                     const char *cn,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+                     uint32_t *flags,
                      int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
                      void *p_vrfy )
 {
     return( mbedtls_x509_crt_verify_restartable( crt, trust_ca, ca_crl,
-                profile, cn, flags, f_vrfy, p_vrfy, NULL ) );
+                profile,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+                cn,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+                flags, f_vrfy, p_vrfy, NULL ) );
 }
 
 /*
@@ -3584,7 +3625,10 @@ int mbedtls_x509_crt_verify_restartable( mbedtls_x509_crt *crt,
                      mbedtls_x509_crt *trust_ca,
                      mbedtls_x509_crl *ca_crl,
                      const mbedtls_x509_crt_profile *profile,
-                     const char *cn, uint32_t *flags,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+                     const char *cn,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+                     uint32_t *flags,
                      int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
                      void *p_vrfy,
                      mbedtls_x509_crt_restart_ctx *rs_ctx )
@@ -3603,6 +3647,7 @@ int mbedtls_x509_crt_verify_restartable( mbedtls_x509_crt *crt,
         goto exit;
     }
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     /* check name if requested */
     if( cn != NULL )
     {
@@ -3610,6 +3655,7 @@ int mbedtls_x509_crt_verify_restartable( mbedtls_x509_crt *crt,
         if( ret != 0 )
             return( ret );
     }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
     {
         mbedtls_pk_context *pk;
@@ -3703,7 +3749,10 @@ void mbedtls_x509_crt_free( mbedtls_x509_crt *crt )
         mbedtls_x509_name_free( cert_cur->issuer.next );
         mbedtls_x509_name_free( cert_cur->subject.next );
         mbedtls_x509_sequence_free( cert_cur->ext_key_usage.next );
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
         mbedtls_x509_sequence_free( cert_cur->subject_alt_names.next );
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+
 #endif /* !MBEDTLS_X509_ON_DEMAND_PARSING */
 
         if( cert_cur->raw.p != NULL && cert_cur->own_buffer )

programs/ssl/dtls_client.c

@@ -222,12 +222,13 @@ int main( int argc, char *argv[] )
         mbedtls_printf( " failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret );
         goto exit;
     }
-
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     if( ( ret = mbedtls_ssl_set_hostname( &ssl, SERVER_NAME ) ) != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n", ret );
         goto exit;
     }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 #if !defined(MBEDTLS_SSL_CONF_RECV) && \
     !defined(MBEDTLS_SSL_CONF_SEND) && \

programs/ssl/mini_client.c

@@ -250,7 +250,7 @@ int main( void )
         goto exit;
     }
 
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     if( mbedtls_ssl_set_hostname( &ssl, HOSTNAME ) != 0 )
     {
         ret = hostname_failed;

programs/ssl/query_config.c

@@ -1570,6 +1570,14 @@ int query_config( const char *config )
     }
 #endif /* MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID */
 
+#if defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+    if( strcmp( "MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION", config ) == 0 )
+    {
+        MACRO_EXPANSION_TO_STR( MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION );
+        return( 0 );
+    }
+#endif /* MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
     if( strcmp( "MBEDTLS_X509_RSASSA_PSS_SUPPORT", config ) == 0 )
     {

programs/ssl/ssl_client1.c

@@ -210,11 +210,13 @@ int main( void )
         goto exit;
     }
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     if( ( ret = mbedtls_ssl_set_hostname( &ssl, SERVER_NAME ) ) != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n", ret );
         goto exit;
     }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 #if !defined(MBEDTLS_SSL_CONF_RECV) &&          \
     !defined(MBEDTLS_SSL_CONF_SEND) &&          \

programs/ssl/ssl_client2.c

@@ -2053,7 +2053,7 @@ int main( int argc, char *argv[] )
         goto exit;
     }
 
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     if( ( ret = mbedtls_ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n",

programs/ssl/ssl_mail_client.c

@@ -662,11 +662,13 @@ int main( int argc, char *argv[] )
         goto exit;
     }
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     if( ( ret = mbedtls_ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n", ret );
         goto exit;
     }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 #if !defined(MBEDTLS_SSL_CONF_RECV) &&          \
     !defined(MBEDTLS_SSL_CONF_SEND) &&          \

programs/x509/cert_app.c

@@ -363,8 +363,11 @@ int main( int argc, char *argv[] )
         {
             mbedtls_printf( "  . Verifying X.509 certificate..." );
 
-            if( ( ret = mbedtls_x509_crt_verify( &crt, &cacert, &cacrl, NULL, &flags,
+            if( ( ret = mbedtls_x509_crt_verify( &crt, &cacert, &cacrl,
-                                         my_verify, NULL ) ) != 0 )
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+                                        NULL,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+                                        &flags, my_verify, NULL ) ) != 0 )
             {
                 char vrfy_buf[512];
 
@@ -453,12 +456,13 @@ int main( int argc, char *argv[] )
             mbedtls_printf( " failed\n  ! mbedtls_ssl_setup returned %d\n\n", ret );
             goto ssl_exit;
         }
-
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
         if( ( ret = mbedtls_ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )
         {
             mbedtls_printf( " failed\n  ! mbedtls_ssl_set_hostname returned %d\n\n", ret );
             goto ssl_exit;
         }
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
 #if !defined(MBEDTLS_SSL_CONF_RECV) &&          \
     !defined(MBEDTLS_SSL_CONF_SEND) &&          \

scripts/config.pl

@@ -41,6 +41,7 @@
 #   MBEDTLS_X509_REMOVE_INFO
 #   MBEDTLS_X509_CRT_REMOVE_TIME
 #   MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID
+#   MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 #   MBEDTLS_ZLIB_SUPPORT
 #   MBEDTLS_PKCS11_C
 #   and any symbol beginning _ALT
@@ -106,6 +107,7 @@ MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
 MBEDTLS_X509_REMOVE_INFO
 MBEDTLS_X509_CRT_REMOVE_TIME
 MBEDTLS_X509_CRT_REMOVE_SUBJECT_ISSUER_ID
+MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 MBEDTLS_ZLIB_SUPPORT
 MBEDTLS_PKCS11_C
 MBEDTLS_NO_UDBL_DIVISION

tests/scripts/all.sh

@@ -1280,6 +1280,20 @@ component_test_no_x509_info () {
     if_build_succeeded tests/ssl-opt.sh
 }
 
+component_test_no_hostname_verification () {
+    msg "build: full + MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION" # ~ 10s
+    scripts/config.pl full
+    scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # too slow for tests
+    scripts/config.pl set MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+    make CFLAGS='-Werror -O1'
+
+    msg "test: full + MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION" # ~ 10s
+    make test
+
+    msg "test: ssl-opt.sh, full + MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION" # ~ 1 min
+    if_build_succeeded tests/ssl-opt.sh
+}
+
 component_build_arm_none_eabi_gcc () {
     msg "build: arm-none-eabi-gcc, make" # ~ 10s
     scripts/config.pl baremetal

tests/ssl-opt.sh

@@ -3925,6 +3925,7 @@ run_test    "SNI: no SNI callback" \
             -c "subject name *: C=NL, O=PolarSSL, CN=localhost"
 
 requires_config_disabled MBEDTLS_X509_REMOVE_INFO
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: matching cert 1" \
             "$P_SRV debug_level=3 \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -3936,6 +3937,7 @@ run_test    "SNI: matching cert 1" \
             -c "subject name *: C=NL, O=PolarSSL, CN=localhost"
 
 requires_config_disabled MBEDTLS_X509_REMOVE_INFO
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: matching cert 2" \
             "$P_SRV debug_level=3 \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -3946,6 +3948,7 @@ run_test    "SNI: matching cert 2" \
             -c "issuer name *: C=NL, O=PolarSSL, CN=PolarSSL Test CA" \
             -c "subject name *: C=NL, O=PolarSSL, CN=polarssl.example"
 
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: no matching cert" \
             "$P_SRV debug_level=3 \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -3971,6 +3974,7 @@ run_test    "SNI: client auth no override: optional" \
             -C "skip write certificate verify" \
             -S "skip parse certificate verify"
 
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: client auth override: none -> optional" \
             "$P_SRV debug_level=3 auth_mode=none \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -3984,6 +3988,7 @@ run_test    "SNI: client auth override: none -> optional" \
             -C "skip write certificate verify" \
             -S "skip parse certificate verify"
 
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: client auth override: optional -> none" \
             "$P_SRV debug_level=3 auth_mode=optional \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -3998,6 +4003,7 @@ run_test    "SNI: client auth override: optional -> none" \
             -s "skip parse certificate verify"
 
 requires_config_disabled MBEDTLS_X509_REMOVE_INFO
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: CA no override" \
             "$P_SRV debug_level=3 auth_mode=optional \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -4017,6 +4023,7 @@ run_test    "SNI: CA no override" \
             -S "The certificate has been revoked (is on a CRL)"
 
 requires_config_disabled MBEDTLS_X509_REMOVE_INFO
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: CA override" \
             "$P_SRV debug_level=3 auth_mode=optional \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -4036,6 +4043,7 @@ run_test    "SNI: CA override" \
             -S "The certificate has been revoked (is on a CRL)"
 
 requires_config_disabled MBEDTLS_X509_REMOVE_INFO
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: CA override with CRL" \
             "$P_SRV debug_level=3 auth_mode=optional \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -4067,6 +4075,7 @@ run_test    "SNI: DTLS, no SNI callback" \
             -c "subject name *: C=NL, O=PolarSSL, CN=localhost"
 
 requires_config_disabled MBEDTLS_X509_REMOVE_INFO
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: DTLS, matching cert 1" \
             "$P_SRV debug_level=3 dtls=1 \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -4078,6 +4087,7 @@ run_test    "SNI: DTLS, matching cert 1" \
             -c "subject name *: C=NL, O=PolarSSL, CN=localhost"
 
 requires_config_disabled MBEDTLS_X509_REMOVE_INFO
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: DTLS, matching cert 2" \
             "$P_SRV debug_level=3 dtls=1 \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -4088,6 +4098,7 @@ run_test    "SNI: DTLS, matching cert 2" \
             -c "issuer name *: C=NL, O=PolarSSL, CN=PolarSSL Test CA" \
             -c "subject name *: C=NL, O=PolarSSL, CN=polarssl.example"
 
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: DTLS, no matching cert" \
             "$P_SRV debug_level=3 dtls=1 \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -4113,6 +4124,7 @@ run_test    "SNI: DTLS, client auth no override: optional" \
             -C "skip write certificate verify" \
             -S "skip parse certificate verify"
 
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: DTLS, client auth override: none -> optional" \
             "$P_SRV debug_level=3 auth_mode=none dtls=1 \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -4126,6 +4138,7 @@ run_test    "SNI: DTLS, client auth override: none -> optional" \
             -C "skip write certificate verify" \
             -S "skip parse certificate verify"
 
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: DTLS, client auth override: optional -> none" \
             "$P_SRV debug_level=3 auth_mode=optional dtls=1 \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -4140,6 +4153,7 @@ run_test    "SNI: DTLS, client auth override: optional -> none" \
             -s "skip parse certificate verify"
 
 requires_config_disabled MBEDTLS_X509_REMOVE_INFO
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: DTLS, CA no override" \
             "$P_SRV debug_level=3 auth_mode=optional dtls=1 \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -4158,6 +4172,7 @@ run_test    "SNI: DTLS, CA no override" \
             -s "! The certificate is not correctly signed by the trusted CA" \
             -S "The certificate has been revoked (is on a CRL)"
 
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: DTLS, CA override" \
             "$P_SRV debug_level=3 auth_mode=optional dtls=1 \
              crt_file=data_files/server5.crt key_file=data_files/server5.key \
@@ -4177,6 +4192,7 @@ run_test    "SNI: DTLS, CA override" \
             -S "The certificate has been revoked (is on a CRL)"
 
 requires_config_disabled MBEDTLS_X509_REMOVE_INFO
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SNI: DTLS, CA override with CRL" \
             "$P_SRV debug_level=3 auth_mode=optional \
              crt_file=data_files/server5.crt key_file=data_files/server5.key dtls=1 \
@@ -6347,6 +6363,7 @@ run_test    "SSL async private: sign, RSA, TLS 1.1" \
 
 requires_config_enabled MBEDTLS_SSL_ASYNC_PRIVATE
 requires_config_disabled MBEDTLS_X509_REMOVE_INFO
+requires_config_disabled MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 run_test    "SSL async private: sign, SNI" \
             "$P_SRV debug_level=3 \
              async_operations=s async_private_delay1=0 async_private_delay2=0 \

tests/suites/test_suite_ssl.function

@@ -402,7 +402,7 @@ void ssl_dtls_replay( data_t * prevs, data_t * new, int ret )
 }
 /* END_CASE */
 
-/* BEGIN_CASE depends_on:MBEDTLS_X509_CRT_PARSE_C */
+/* BEGIN_CASE depends_on:MBEDTLS_X509_CRT_PARSE_C:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 void ssl_set_hostname_twice( char *hostname0, char *hostname1 )
 {
     mbedtls_ssl_context ssl;

tests/suites/test_suite_x509parse.data

@@ -107,13 +107,21 @@ depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C
 x509_cert_info:"data_files/keyUsage.decipherOnly.crt":"cert. version     \: 3\nserial number     \: 9B\:13\:CE\:4C\:A5\:6F\:DE\:52\nissuer name       \: C=GB, L=Cambridge, O=Default Company Ltd\nsubject name      \: C=GB, L=Cambridge, O=Default Company Ltd\nissued  on        \: 2015-05-12 10\:36\:55\nexpires on        \: 2018-05-11 10\:36\:55\nsigned using      \: RSA with SHA1\nRSA key size      \: 1024 bits\nbasic constraints \: CA=false\nkey usage         \: Digital Signature, Non Repudiation, Key Encipherment, Decipher Only\n"
 
 X509 CRT information, Subject Alt Name
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_cert_info:"data_files/cert_example_multi.crt":"cert. version     \: 3\nserial number     \: 11\nissuer name       \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name      \: C=NL, O=PolarSSL, CN=www.example.com\nissued  on        \: 2012-05-10 13\:23\:41\nexpires on        \: 2022-05-11 13\:23\:41\nsigned using      \: RSA with SHA1\nRSA key size      \: 2048 bits\nbasic constraints \: CA=false\nsubject alt name  \: example.com, example.net, *.example.org\n"
 
+X509 CRT information, Subject Alt Name, not expected Subject alt name
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_cert_info:"data_files/cert_example_multi.crt":"cert. version     \: 3\nserial number     \: 11\nissuer name       \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name      \: C=NL, O=PolarSSL, CN=www.example.com\nissued  on        \: 2012-05-10 13\:23\:41\nexpires on        \: 2022-05-11 13\:23\:41\nsigned using      \: RSA with SHA1\nRSA key size      \: 2048 bits\nbasic constraints \: CA=false\n"
+
 X509 CRT information, Subject Alt Name + Key Usage
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_cert_info:"data_files/cert_example_multi_nocn.crt":"cert. version     \: 3\nserial number     \: F7\:C6\:7F\:F8\:E9\:A9\:63\:F9\nissuer name       \: C=NL\nsubject name      \: C=NL\nissued  on        \: 2014-01-22 10\:04\:33\nexpires on        \: 2024-01-22 10\:04\:33\nsigned using      \: RSA with SHA1\nRSA key size      \: 1024 bits\nbasic constraints \: CA=false\nsubject alt name  \: www.shotokan-braunschweig.de, www.massimo-abate.eu\nkey usage         \: Digital Signature, Non Repudiation, Key Encipherment\n"
 
+X509 CRT information, Subject Alt Name + Key Usage, not expected Subject alt name
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_cert_info:"data_files/cert_example_multi_nocn.crt":"cert. version     \: 3\nserial number     \: F7\:C6\:7F\:F8\:E9\:A9\:63\:F9\nissuer name       \: C=NL\nsubject name      \: C=NL\nissued  on        \: 2014-01-22 10\:04\:33\nexpires on        \: 2024-01-22 10\:04\:33\nsigned using      \: RSA with SHA1\nRSA key size      \: 1024 bits\nbasic constraints \: CA=false\nkey usage         \: Digital Signature, Non Repudiation, Key Encipherment\n"
+
 X509 CRT information, Key Usage + Extended Key Usage
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
 x509_cert_info:"data_files/server1.ext_ku.crt":"cert. version     \: 3\nserial number     \: 21\nissuer name       \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name      \: C=NL, O=PolarSSL, CN=PolarSSL Server 1\nissued  on        \: 2014-04-01 14\:44\:43\nexpires on        \: 2024-03-29 14\:44\:43\nsigned using      \: RSA with SHA-256\nRSA key size      \: 2048 bits\nbasic constraints \: CA=false\nkey usage         \: Digital Signature, Non Repudiation, Key Encipherment\next key usage     \: TLS Web Server Authentication\n"
@@ -127,9 +135,13 @@ depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP192R1_ENABLED:
 x509_cert_info:"data_files/server3.crt":"cert. version     \: 3\nserial number     \: 0D\nissuer name       \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name      \: C=NL, O=PolarSSL, CN=localhost\nissued  on        \: 2013-08-09 09\:17\:03\nexpires on        \: 2023-08-07 09\:17\:03\nsigned using      \: RSA with SHA1\nEC key size       \: 192 bits\nbasic constraints \: CA=false\n"
 
 X509 CRT information Bitstring in subject name
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_cert_info:"data_files/bitstring-in-dn.pem":"cert. version     \: 3\nserial number     \: 02\nissuer name       \: CN=Test CA 01, ST=Ecnivorp, C=XX, emailAddress=tca@example.com, O=Test CA Authority\nsubject name      \: C=XX, O=tca, ST=Ecnivorp, OU=TCA, CN=Client, emailAddress=client@example.com, serialNumber=7101012255, uniqueIdentifier=?7101012255\nissued  on        \: 2015-03-11 12\:06\:51\nexpires on        \: 2025-03-08 12\:06\:51\nsigned using      \: RSA with SHA1\nRSA key size      \: 2048 bits\nbasic constraints \: CA=false\nsubject alt name  \: \next key usage     \: TLS Web Client Authentication\n"
 
+X509 CRT information Bitstring in subject name, not expected Subject alt name
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_SHA1_C:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_cert_info:"data_files/bitstring-in-dn.pem":"cert. version     \: 3\nserial number     \: 02\nissuer name       \: CN=Test CA 01, ST=Ecnivorp, C=XX, emailAddress=tca@example.com, O=Test CA Authority\nsubject name      \: C=XX, O=tca, ST=Ecnivorp, OU=TCA, CN=Client, emailAddress=client@example.com, serialNumber=7101012255, uniqueIdentifier=?7101012255\nissued  on        \: 2015-03-11 12\:06\:51\nexpires on        \: 2025-03-08 12\:06\:51\nsigned using      \: RSA with SHA1\nRSA key size      \: 2048 bits\nbasic constraints \: CA=false\next key usage     \: TLS Web Client Authentication\n"
+
 X509 certificate v1 with extension
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3:MBEDTLS_SHA1_C
 x509_cert_info:"data_files/cert_v1_with_ext.crt":"cert. version     \: 1\nserial number     \: BD\:ED\:44\:C7\:D2\:3E\:C2\:A4\nissuer name       \: C=XX, ST=XX, L=XX, O=XX, OU=XX, emailAddress=admin@identity-check.org, CN=identity-check.org\nsubject name      \: C=XX, ST=XX, L=XX, O=XX, OU=XX, emailAddress=admin@identity-check.org, CN=identity-check.org\nissued  on        \: 2013-07-04 16\:17\:02\nexpires on        \: 2014-07-04 16\:17\:02\nsigned using      \: RSA with SHA1\nRSA key size      \: 2048 bits\nsubject alt name  \: identity-check.org, www.identity-check.org\n"
@@ -400,13 +412,21 @@ depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA256_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_S
 x509_verify:"data_files/server6.crt":"data_files/test-ca2.crt":"data_files/crl-future.pem":"localhost":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_REVOKED | MBEDTLS_X509_BADCRL_FUTURE:"compat":"NULL"
 
 X509 CRT verification #3 (Revoked Cert, Future CRL, CN Mismatch)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_HAVE_TIME_DATE
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_HAVE_TIME_DATE:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/server1.crt":"data_files/test-ca.crt":"data_files/crl_expired.pem":"PolarSSL Wrong CN":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_REVOKED | MBEDTLS_X509_BADCRL_EXPIRED | MBEDTLS_X509_BADCERT_CN_MISMATCH:"compat":"NULL"
 
-X509 CRT verification #3a (Revoked Cert, Expired CRL, CN Mismatch)
+X509 CRT verification #3a (Revoked Cert, Future CRL, CN Discard)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA256_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA1_C:MBEDTLS_HAVE_TIME_DATE
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_HAVE_TIME_DATE:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/server1.crt":"data_files/test-ca.crt":"data_files/crl_expired.pem":"PolarSSL Wrong CN":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_REVOKED | MBEDTLS_X509_BADCRL_EXPIRED:"compat":"NULL"
+
+X509 CRT verification #3b (Revoked Cert, Expired CRL, CN Mismatch)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA256_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA1_C:MBEDTLS_HAVE_TIME_DATE:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/server6.crt":"data_files/test-ca2.crt":"data_files/crl-future.pem":"Wrong CN":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_REVOKED | MBEDTLS_X509_BADCRL_FUTURE | MBEDTLS_X509_BADCERT_CN_MISMATCH:"compat":"NULL"
 
+X509 CRT verification #3c (Revoked Cert, Expired CRL, CN Discard)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA256_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA1_C:MBEDTLS_HAVE_TIME_DATE:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/server6.crt":"data_files/test-ca2.crt":"data_files/crl-future.pem":"Wrong CN":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_REVOKED | MBEDTLS_X509_BADCRL_FUTURE:"compat":"NULL"
+
 X509 CRT verification #4 (Valid Cert, Expired CRL)
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_HAVE_TIME_DATE
 x509_verify:"data_files/server2.crt":"data_files/test-ca.crt":"data_files/crl_expired.pem":"NULL":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCRL_EXPIRED:"compat":"NULL"
@@ -436,9 +456,13 @@ depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MB
 x509_verify:"data_files/server1.crt":"data_files/test-ca.crt":"data_files/crl.pem":"PolarSSL Server 1":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_REVOKED:"compat":"NULL"
 
 X509 CRT verification #7 (Revoked Cert, CN Mismatch)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_HAVE_TIME_DATE
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_HAVE_TIME_DATE:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/server1.crt":"data_files/test-ca.crt":"data_files/crl.pem":"PolarSSL Wrong CN":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_REVOKED | MBEDTLS_X509_BADCERT_CN_MISMATCH:"compat":"NULL"
 
+X509 CRT verification #7a (Revoked Cert, CN Discard)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_HAVE_TIME_DATE:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/server1.crt":"data_files/test-ca.crt":"data_files/crl.pem":"PolarSSL Wrong CN":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_REVOKED:"compat":"NULL"
+
 X509 CRT verification #8 (Valid Cert)
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA256_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA1_C
 x509_verify:"data_files/server5.crt":"data_files/test-ca2.crt":"data_files/crl-ec-sha1.pem":"NULL":0:0:"compat":"NULL"
@@ -532,37 +556,65 @@ depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
 x509_verify:"data_files/cert_example_wildcard.crt":"data_files/test-ca.crt":"data_files/crl.pem":"mail.ExAmPlE.com":0:0:"compat":"NULL"
 
 X509 CRT verification #22 (domain not matching wildcard certificate)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/cert_example_wildcard.crt":"data_files/test-ca.crt":"data_files/crl.pem":"mail.example.net":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_CN_MISMATCH:"compat":"NULL"
 
+X509 CRT verification #22a (domain not matching discard)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/cert_example_wildcard.crt":"data_files/test-ca.crt":"data_files/crl.pem":"mail.example.net":0:0:"compat":"NULL"
+
 X509 CRT verification #23 (domain not matching wildcard certificate)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/cert_example_wildcard.crt":"data_files/test-ca.crt":"data_files/crl.pem":"example.com":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_CN_MISMATCH:"compat":"NULL"
 
+X509 CRT verification #23a (domain not matching discard)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/cert_example_wildcard.crt":"data_files/test-ca.crt":"data_files/crl.pem":"example.com":0:0:"compat":"NULL"
+
 X509 CRT verification #24 (domain matching CN of multi certificate)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"www.example.com":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_CN_MISMATCH:"compat":"NULL"
 
+X509 CRT verification #24a (domain matching discard)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"www.example.com":0:0:"compat":"NULL"
+
 X509 CRT verification #25 (domain matching multi certificate)
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
 x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"example.net":0:0:"compat":"NULL"
 
 X509 CRT verification #26 (domain not matching multi certificate)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"www.example.net":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_CN_MISMATCH:"compat":"NULL"
 
+X509 CRT verification #26a (domain not matching discard)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"www.example.net":0:0:"compat":"NULL"
+
 X509 CRT verification #27 (domain not matching multi certificate)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"xample.net":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_CN_MISMATCH:"compat":"NULL"
 
-X509 CRT verification #27 (domain not matching multi certificate)
+X509 CRT verification #27a (domain not matching discard)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"xample.net":0:0:"compat":"NULL"
+
+X509 CRT verification #27c (domain not matching multi certificate)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"bexample.net":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_CN_MISMATCH:"compat":"NULL"
 
+X509 CRT verification #27d (domain not matching discard)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"bexample.net":0:0:"compat":"NULL"
+
 X509 CRT verification #28 (domain not matching wildcard in multi certificate)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"example.org":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_CN_MISMATCH:"compat":"NULL"
 
+X509 CRT verification #28a (domain not matching discard)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"example.org":0:0:"compat":"NULL"
+
 X509 CRT verification #29 (domain matching wildcard in multi certificate)
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
 x509_verify:"data_files/cert_example_multi.crt":"data_files/test-ca.crt":"data_files/crl.pem":"mail.example.org":0:0:"compat":"NULL"
@@ -572,9 +624,13 @@ depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
 x509_verify:"data_files/cert_example_multi_nocn.crt":"data_files/test-ca.crt":"data_files/crl.pem":"www.shotokan-braunschweig.de":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_NOT_TRUSTED:"compat":"NULL"
 
 X509 CRT verification #31 (domain not matching multi certificate without CN)
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify:"data_files/cert_example_multi_nocn.crt":"data_files/test-ca.crt":"data_files/crl.pem":"www.example.net":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_CN_MISMATCH + MBEDTLS_X509_BADCERT_NOT_TRUSTED:"compat":"NULL"
 
+X509 CRT verification #31a (domain not matching discard)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify:"data_files/cert_example_multi_nocn.crt":"data_files/test-ca.crt":"data_files/crl.pem":"www.example.net":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:MBEDTLS_X509_BADCERT_NOT_TRUSTED:"compat":"NULL"
+
 X509 CRT verification #32 (Valid, EC cert, RSA CA)
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP192R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA1_C
 x509_verify:"data_files/server3.crt":"data_files/test-ca.crt":"data_files/crl.pem":"NULL":0:0:"compat":"NULL"
@@ -848,9 +904,13 @@ depends_on:MBEDTLS_SHA256_C:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:
 x509_verify:"data_files/cert_sha256.crt":"data_files/test-ca.crt":"data_files/crl-ec-sha256.pem":"NULL":0:0:"next":"NULL"
 
 X509 CRT verification callback: bad name
-depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_SHA256_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_SHA256_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509_verify_callback:"data_files/server5.crt":"data_files/test-ca2.crt":"globalhost":MBEDTLS_ERR_X509_CERT_VERIFY_FAILED:"depth 1 - serial C1\:43\:E2\:7E\:62\:43\:CC\:E8 - subject C=NL, O=PolarSSL, CN=Polarssl Test EC CA - flags 0x00000000\ndepth 0 - serial 09 - subject C=NL, O=PolarSSL, CN=localhost - flags 0x00000004\n"
 
+X509 CRT verification callback: bad name discard
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_SHA256_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509_verify_callback:"data_files/server5.crt":"data_files/test-ca2.crt":"globalhost":0:"depth 1 - serial C1\:43\:E2\:7E\:62\:43\:CC\:E8 - subject C=NL, O=PolarSSL, CN=Polarssl Test EC CA - flags 0x00000000\ndepth 0 - serial 09 - subject C=NL, O=PolarSSL, CN=localhost - flags 0x00000000\n"
+
 X509 CRT verification callback: trusted EE cert
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_SHA256_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
 x509_verify_callback:"data_files/server5-selfsigned.crt":"data_files/server5-selfsigned.crt":"NULL":0:"depth 0 - serial 53\:A2\:CB\:4B\:12\:4E\:AD\:83\:7D\:A8\:94\:B2 - subject CN=selfsigned, OU=testing, O=PolarSSL, C=NL - flags 0x00000000\n"
@@ -1698,9 +1758,13 @@ depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
 x509parse_crt:"3081b93081a3a0030201018204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374302a300d06092A864886F70D010101050003190030160210ffffffffffffffffffffffffffffffff0202ffffa321301f301d0603551d11041630148208666f6f2e7465737482086261722e74657374300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_X509_INVALID_FORMAT + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH
 
 X509 CRT ASN1 (TBS, valid SubjectID, valid IssuerID, inv v3Ext, SubjectAltName repeated outside Extensions, inv SubjectAltNames tag)
-depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA1_C
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA1_C:!MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
 x509parse_crt:"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":"":MBEDTLS_ERR_X509_INVALID_EXTENSIONS + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
 
+X509 CRT ASN1 (TBS, valid SubjectID, valid IssuerID, inv v3Ext, SubjectAltName repeated outside Extensions, inv SubjectAltNames discarded)
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA1_C:MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION
+x509parse_crt:"308203723082025aa003020102020111300d06092a864886f70d0101050500303b310b3009060355040613024e4c3111300f060355040a1308506f6c617253534c3119301706035504031310506f6c617253534c2054657374204341301e170d3132303531303133323334315a170d3232303531313133323334315a303a310b3009060355040613024e4c3111300f060355040a1308506f6c617253534c311830160603550403130f7777772e6578616d706c652e636f6d30820122300d06092a864886f70d01010105000382010f003082010a0282010100b93c4ac5c8a38e9017a49e52aa7175266180e7c7b56d8cffaab64126b7be11ad5c73160c64114804ffd6e13b05db89bbb39709d51c14dd688739b03d71cbe276d01ad8182d801b54f6e5449af1cbaf612edf490d9d09b7edb1fd3cfd3cfa24cf5dbf7ce453e725b5ea4422e926d3ea20949ee66167ba2e07670b032fa209edf0338f0bce10ef67a4c608dac1edc23fd74add153df95e1c8160463eb5b33d2fa6de471cbc92aeebdf276b1656b7dcecd15557a56eec7525f5b77bdfabd23a5a91987d97170b130aa76b4a8bc14730fb3af84104d5c1dfb81dbf7b01a565a2e01e36b7a65ccc305af8cd6fcdf1196225ca01e3357ffa20f5dcfd69b26a007d17f70203010001a38181307f30090603551d1304023000301d0603551d0e041604147de49c6be6f9717d46d2123dad6b1dfdc2aa784c301f0603551d23041830168014b45ae4a5b3ded252f6b9d5a6950feb3ebcc7fdff30320603551d11042b3029c20b6578616d706c652e636f6d820b6578616d706c652e6e6574820d2a2e6578616d706c652e6f7267300d06092a864886f70d010105050003820101004f09cb7ad5eef5ef620ddc7ba285d68cca95b46bda115b92007513b9ca0bceeafbc31fe23f7f217479e2e6bcda06e52f6ff655c67339cf48bc0d2f0cd27a06c34a4cd9485da0d07389e4d4851d969a0e5799c66f1d21271f8d0529e840ae823968c39707cf3c934c1adf2fa6a455487f7c8c1ac922da24cd9239c68aecb08df5698267cb04eede534196c127dc2ffe33fad30eb8d432a9842853a5f0d189d5a298e71691bb9cc0418e8c58acffe3dd2e7aabb0b97176ad0f2733f7a929d3c076c0bf06407c0ed5a47c8ae2326e16aeda641fb0557cdbddf1a4ba447cb39958d2346e00ea976c143af2101e0aa249107601f4f2c818fdcc6346128b091bf194e6":"cert. version     \: 3\nserial number     \: 11\nissuer name       \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name      \: C=NL, O=PolarSSL, CN=www.example.com\nissued  on        \: 2012-05-10 13\:23\:41\nexpires on        \: 2022-05-11 13\:23\:41\nsigned using      \: RSA with SHA1\nRSA key size      \: 2048 bits\nbasic constraints \: CA=false\n":0
+
 X509 CRT ASN1 (SignatureAlgorithm missing)
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
 x509parse_crt:"3081aa3081a7a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374302a300d06092A864886F70D010101050003190030160210ffffffffffffffffffffffffffffffff0202ffffa100a200a321301f301d0603551d11041630148208666f6f2e7465737482086261722e74657374":"":MBEDTLS_ERR_X509_INVALID_ALG + MBEDTLS_ERR_ASN1_OUT_OF_DATA

tests/suites/test_suite_x509parse.function

@@ -329,7 +329,11 @@ void x509_verify_restart( char *crt_file, char *ca_file,
     cnt_restart = 0;
     do {
         ret = mbedtls_x509_crt_verify_restartable( &crt, &ca, NULL,
-                &mbedtls_x509_crt_profile_default, NULL, &flags,
+                &mbedtls_x509_crt_profile_default,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+                NULL,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+                &flags,
                 NULL, NULL, &rs_ctx );
     } while( ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart );
 
@@ -341,7 +345,11 @@ void x509_verify_restart( char *crt_file, char *ca_file,
 
     /* Do we leak memory when aborting? */
     ret = mbedtls_x509_crt_verify_restartable( &crt, &ca, NULL,
-            &mbedtls_x509_crt_profile_default, NULL, &flags,
+            &mbedtls_x509_crt_profile_default,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+            NULL,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+            &flags,
             NULL, NULL, &rs_ctx );
     TEST_ASSERT( ret == result || ret == MBEDTLS_ERR_ECP_IN_PROGRESS );
 
@@ -364,15 +372,21 @@ void x509_verify( char *crt_file, char *ca_file, char *crl_file,
     uint32_t         flags = 0;
     int         res;
     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *) = NULL;
-    char *      cn_name = NULL;
     const mbedtls_x509_crt_profile *profile;
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+    char *      cn_name = NULL;
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
     mbedtls_x509_crt_init( &crt );
     mbedtls_x509_crt_init( &ca );
     mbedtls_x509_crl_init( &crl );
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     if( strcmp( cn_name_str, "NULL" ) != 0 )
         cn_name = cn_name_str;
+#else
+    (void)cn_name_str;
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
     if( strcmp( profile_str, "" ) == 0 )
         profile = &mbedtls_x509_crt_profile_default;
@@ -400,7 +414,11 @@ void x509_verify( char *crt_file, char *ca_file, char *crl_file,
     TEST_ASSERT( mbedtls_x509_crt_parse_file( &ca, ca_file ) == 0 );
     TEST_ASSERT( mbedtls_x509_crl_parse_file( &crl, crl_file ) == 0 );
 
-    res = mbedtls_x509_crt_verify_with_profile( &crt, &ca, &crl, profile, cn_name, &flags, f_vrfy, NULL );
+    res = mbedtls_x509_crt_verify_with_profile( &crt, &ca, &crl, profile,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+                                                cn_name,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+                                                &flags, f_vrfy, NULL );
 
     TEST_ASSERT( res == ( result ) );
     TEST_ASSERT( flags == (uint32_t)( flags_result ) );
@@ -429,13 +447,19 @@ void x509_verify_callback( char *crt_file, char *ca_file, char *name,
     TEST_ASSERT( mbedtls_x509_crt_parse_file( &crt, crt_file ) == 0 );
     TEST_ASSERT( mbedtls_x509_crt_parse_file( &ca, ca_file ) == 0 );
 
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
     if( strcmp( name, "NULL" ) == 0 )
         name = NULL;
+#else
+    (void)name;
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
 
     ret = mbedtls_x509_crt_verify_with_profile( &crt, &ca, NULL,
                                                 &compat_profile,
-                                                name, &flags,
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
-                                                verify_print, &vrfy_ctx );
+                                                name,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+                                                &flags, verify_print, &vrfy_ctx );
 
     TEST_ASSERT( ret == exp_ret );
     TEST_ASSERT( strcmp( vrfy_ctx.buf, exp_vrfy_out ) == 0 );
@@ -792,8 +816,11 @@ void mbedtls_x509_crt_verify_max( char *ca_file, char *chain_dir, int nb_int,
     TEST_ASSERT( mbedtls_x509_crt_parse_file( &chain, file_buf ) == 0 );
 
     /* Try to verify that chain */
-    ret = mbedtls_x509_crt_verify( &chain, &trusted, NULL, NULL, &flags,
+    ret = mbedtls_x509_crt_verify( &chain, &trusted, NULL,
-                                   NULL, NULL );
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+                                   NULL,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+                                   &flags, NULL, NULL );
     TEST_ASSERT( ret == ret_chk );
     TEST_ASSERT( flags == (uint32_t) flags_chk );
 
@@ -833,7 +860,10 @@ void mbedtls_x509_crt_verify_chain(  char *chain_paths, char *trusted_ca,
         profile = &profile_sha512;
 
     res = mbedtls_x509_crt_verify_with_profile( &chain, &trusted, NULL, profile,
-            NULL, &flags, verify_fatal, &vrfy_fatal_lvls );
+#if !defined(MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION)
+            NULL,
+#endif /* !MBEDTLS_X509_REMOVE_HOSTNAME_VERIFICATION */
+            &flags, verify_fatal, &vrfy_fatal_lvls );
 
     TEST_ASSERT( res == ( result ) );
     TEST_ASSERT( flags == (uint32_t)( flags_result ) );