diff options
Diffstat (limited to 'library/x509_crt.c')
| -rw-r--r-- | library/x509_crt.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/library/x509_crt.c b/library/x509_crt.c index 8fd8b86..2627224 100644 --- a/library/x509_crt.c +++ b/library/x509_crt.c @@ -3008,6 +3008,25 @@ static int x509_crt_check_cn( const mbedtls_x509_buf *name, } /* + * Check for SAN match, see RFC 5280 Section 4.2.1.6 + */ +static int x509_crt_check_san( const mbedtls_x509_buf *name, + const char *cn, size_t cn_len ) +{ + const unsigned char san_type = (unsigned char) name->tag & + MBEDTLS_ASN1_TAG_VALUE_MASK; + + /* dNSName */ + if( san_type == MBEDTLS_X509_SAN_DNS_NAME ) + return( x509_crt_check_cn( name, cn, cn_len ) ); + + /* (We may handle other types here later.) */ + + /* Unrecognized type */ + return( -1 ); +} + +/* * Verify the requested CN - only call this if cn is not NULL! */ static void x509_crt_verify_name( const mbedtls_x509_crt *crt, @@ -3022,7 +3041,7 @@ static void x509_crt_verify_name( const mbedtls_x509_crt *crt, { for( cur = &crt->subject_alt_names; cur != NULL; cur = cur->next ) { - if( x509_crt_check_cn( &cur->buf, cn, cn_len ) == 0 ) + if( x509_crt_check_san( &cur->buf, cn, cn_len ) == 0 ) break; } |