Allow configuring own CID fields through mbedtls_ssl_get_peer_cid()
@@ -121,18 +121,33 @@ static void ssl_update_in_pointers( mbedtls_ssl_context *ssl,
#if defined(MBEDTLS_SSL_CID)
/* Top-level Connection ID API */
-/* WARNING: This implementation is a stub and doesn't do anything!
- * It is included solely to allow review and coding against
- * the new Connection CID API. */
+/* WARNING: The CID feature isn't fully implemented yet
+ * and will not be used. */
int mbedtls_ssl_set_cid( mbedtls_ssl_context *ssl,
int enable,
unsigned char const *own_cid,
size_t own_cid_len )
{
- ((void) ssl);
- ((void) enable);
- ((void) own_cid);
- ((void) own_cid_len);
+ ssl->negotiate_cid = enable;
+ if( enable == MBEDTLS_SSL_CID_DISABLED )
+ {
+ MBEDTLS_SSL_DEBUG_MSG( 3, ( "Disable use of CID extension." ) );
+ return( 0 );
+ }
+ MBEDTLS_SSL_DEBUG_MSG( 3, ( "Enable use of CID extension." ) );
+
+ if( own_cid_len > MBEDTLS_SSL_CID_IN_LEN_MAX )
+ {
+ MBEDTLS_SSL_DEBUG_MSG( 3, ( "CID too large: Maximum %u, actual %u",
+ (unsigned) MBEDTLS_SSL_CID_IN_LEN_MAX,
+ (unsigned) own_cid_len ) );
+ return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+ }
+
+ memcpy( ssl->own_cid, own_cid, own_cid_len );
+ ssl->own_cid_len = own_cid_len;
+
+ MBEDTLS_SSL_DEBUG_BUF( 3, "Own CID", own_cid, own_cid_len );
return( 0 );
}
