diff options
Diffstat (limited to 'ssl/t1_lib.c')
-rw-r--r-- | ssl/t1_lib.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c index 66119d43f8..d95732ad0e 100644 --- a/ssl/t1_lib.c +++ b/ssl/t1_lib.c @@ -1445,26 +1445,6 @@ unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned cha ret += el; } - /* Add TLS extension Server_Authz_DataFormats to the ClientHello */ - /* 2 bytes for extension type */ - /* 2 bytes for extension length */ - /* 1 byte for the list length */ - /* 1 byte for the list (we only support audit proofs) */ - if (s->ctx->tlsext_authz_server_audit_proof_cb != NULL) - { - const unsigned short ext_len = 2; - const unsigned char list_len = 1; - - if (limit < ret + 6) - return NULL; - - s2n(TLSEXT_TYPE_server_authz, ret); - /* Extension length: 2 bytes */ - s2n(ext_len, ret); - *(ret++) = list_len; - *(ret++) = TLSEXT_AUTHZDATAFORMAT_audit_proof; - } - /* Add custom TLS Extensions to ClientHello */ if (s->ctx->custom_cli_ext_records_count) { @@ -1693,79 +1673,6 @@ unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned cha } #endif - /* If the client supports authz then see whether we have any to offer - * to it. */ - if (s->s3->tlsext_authz_client_types_len) - { - size_t authz_length; - /* By now we already know the new cipher, so we can look ahead - * to see whether the cert we are going to send - * has any authz data attached to it. */ - const unsigned char* authz = ssl_get_authz_data(s, &authz_length); - const unsigned char* const orig_authz = authz; - size_t i; - unsigned authz_count = 0; - - /* The authz data contains a number of the following structures: - * uint8_t authz_type - * uint16_t length - * uint8_t data[length] - * - * First we walk over it to find the number of authz elements. */ - for (i = 0; i < authz_length; i++) - { - unsigned short length; - unsigned char type; - - type = *(authz++); - if (memchr(s->s3->tlsext_authz_client_types, - type, - s->s3->tlsext_authz_client_types_len) != NULL) - authz_count++; - - n2s(authz, length); - /* n2s increments authz by 2 */ - i += 2; - authz += length; - i += length; - } - - if (authz_count) - { - /* Add TLS extension server_authz to the ServerHello message - * 2 bytes for extension type - * 2 bytes for extension length - * 1 byte for the list length - * n bytes for the list */ - const unsigned short ext_len = 1 + authz_count; - - if ((long)(limit - ret - 4 - ext_len) < 0) return NULL; - s2n(TLSEXT_TYPE_server_authz, ret); - s2n(ext_len, ret); - *(ret++) = authz_count; - s->s3->tlsext_authz_promised_to_client = 1; - } - - authz = orig_authz; - for (i = 0; i < authz_length; i++) - { - unsigned short length; - unsigned char type; - - authz_count++; - type = *(authz++); - if (memchr(s->s3->tlsext_authz_client_types, - type, - s->s3->tlsext_authz_client_types_len) != NULL) - *(ret++) = type; - n2s(authz, length); - /* n2s increments authz by 2 */ - i += 2; - authz += length; - i += length; - } - } - /* If custom types were sent in ClientHello, add ServerHello responses */ if (s->s3->tlsext_custom_types_count) { @@ -2511,66 +2418,6 @@ static int ssl_scan_clienthello_tlsext(SSL *s, unsigned char **p, unsigned char al)) return 0; } - - else if (type == TLSEXT_TYPE_server_authz) - { - unsigned char *sdata = data; - unsigned char server_authz_dataformatlist_length; - - if (size == 0) - { - *al = TLS1_AD_DECODE_ERROR; - return 0; - } - - server_authz_dataformatlist_length = *(sdata++); - - if (server_authz_dataformatlist_length != size - 1) - { - *al = TLS1_AD_DECODE_ERROR; - return 0; - } - - /* Successful session resumption uses the same authz - * information as the original session so we ignore this - * in the case of a session resumption. */ - if (!s->hit) - { - if (s->s3->tlsext_authz_client_types != NULL) - OPENSSL_free(s->s3->tlsext_authz_client_types); - s->s3->tlsext_authz_client_types = - OPENSSL_malloc(server_authz_dataformatlist_length); - if (!s->s3->tlsext_authz_client_types) - { - *al = TLS1_AD_INTERNAL_ERROR; - return 0; - } - - s->s3->tlsext_authz_client_types_len = - server_authz_dataformatlist_length; - memcpy(s->s3->tlsext_authz_client_types, - sdata, - server_authz_dataformatlist_length); - - /* Sort the types in order to check for duplicates. */ - qsort(s->s3->tlsext_authz_client_types, - server_authz_dataformatlist_length, - 1 /* element size */, - byte_compare); - - for (i = 0; i < server_authz_dataformatlist_length; i++) - { - if (i > 0 && - s->s3->tlsext_authz_client_types[i] == - s->s3->tlsext_authz_client_types[i-1]) - { - *al = TLS1_AD_DECODE_ERROR; - return 0; - } - } - } - } - /* If this ClientHello extension was unhandled and this is * a nonresumed connection, check whether the extension is a * custom TLS Extension (has a custom_srv_ext_record), and if @@ -2936,46 +2783,6 @@ static int ssl_scan_serverhello_tlsext(SSL *s, unsigned char **p, unsigned char al)) return 0; } - - else if (type == TLSEXT_TYPE_server_authz) - { - /* We only support audit proofs. It's an error to send - * an authz hello extension if the client - * didn't request a proof. */ - unsigned char *sdata = data; - unsigned char server_authz_dataformatlist_length; - - if (!s->ctx->tlsext_authz_server_audit_proof_cb) - { - *al = TLS1_AD_UNSUPPORTED_EXTENSION; - return 0; - } - - if (!size) - { - *al = TLS1_AD_DECODE_ERROR; - return 0; - } - - server_authz_dataformatlist_length = *(sdata++); - if (server_authz_dataformatlist_length != size - 1) - { - *al = TLS1_AD_DECODE_ERROR; - return 0; - } - - /* We only support audit proofs, so a legal ServerHello - * authz list contains exactly one entry. */ - if (server_authz_dataformatlist_length != 1 || - sdata[0] != TLSEXT_AUTHZDATAFORMAT_audit_proof) - { - *al = TLS1_AD_UNSUPPORTED_EXTENSION; - return 0; - } - - s->s3->tlsext_authz_server_promised = 1; - } - /* If this extension type was not otherwise handled, but * matches a custom_cli_ext_record, then send it to the c * callback */ |