static void sendError(UA_SecureChannel *channel, const UA_ByteString *msg, size_t pos, UA_UInt32 requestId, UA_StatusCode error) { UA_RequestHeader p; if(UA_RequestHeader_decodeBinary(msg, &pos, &p) != UA_STATUSCODE_GOOD) return; UA_ResponseHeader r; UA_ResponseHeader_init(&r); init_response_header(&p, &r); r.serviceResult = error; UA_SecureChannel_sendBinaryMessage(channel, requestId, &r, &UA_TYPES[UA_TYPES_SERVICEFAULT]); UA_RequestHeader_deleteMembers(&p); UA_ResponseHeader_deleteMembers(&r); }
static void processMSG(UA_Connection *connection, UA_Server *server, const UA_ByteString *msg, size_t *pos) { /* Read in the securechannel */ UA_UInt32 secureChannelId; UA_StatusCode retval = UA_UInt32_decodeBinary(msg, pos, &secureChannelId); if(retval != UA_STATUSCODE_GOOD) return; /* the anonymous channel is used e.g. to allow getEndpoints without a channel */ UA_SecureChannel *clientChannel = connection->channel; UA_SecureChannel anonymousChannel; if(!clientChannel) { UA_SecureChannel_init(&anonymousChannel); anonymousChannel.connection = connection; clientChannel = &anonymousChannel; #ifdef EXTENSION_STATELESS anonymousChannel.session = &anonymousSession; #endif } /* Read the security header */ UA_UInt32 tokenId; UA_SequenceHeader sequenceHeader; retval = UA_UInt32_decodeBinary(msg, pos, &tokenId); retval |= UA_SequenceHeader_decodeBinary(msg, pos, &sequenceHeader); if(retval != UA_STATUSCODE_GOOD) return; /* Read the request type */ UA_NodeId requestType; if(UA_NodeId_decodeBinary(msg, pos, &requestType) != UA_STATUSCODE_GOOD) return; if(requestType.identifierType != UA_NODEIDTYPE_NUMERIC) { UA_NodeId_deleteMembers(&requestType); return; } switch(requestType.identifier.numeric - UA_ENCODINGOFFSET_BINARY) { case UA_NS0ID_GETENDPOINTSREQUEST: { UA_GetEndpointsRequest p; UA_GetEndpointsResponse r; if(UA_GetEndpointsRequest_decodeBinary(msg, pos, &p)) return; UA_GetEndpointsResponse_init(&r); init_response_header(&p.requestHeader, &r.responseHeader); Service_GetEndpoints(server, &p, &r); UA_GetEndpointsRequest_deleteMembers(&p); UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r, &UA_TYPES[UA_TYPES_GETENDPOINTSRESPONSE]); UA_GetEndpointsResponse_deleteMembers(&r); break; } case UA_NS0ID_FINDSERVERSREQUEST: { UA_FindServersRequest p; UA_FindServersResponse r; if(UA_FindServersRequest_decodeBinary(msg, pos, &p)) return; UA_FindServersResponse_init(&r); init_response_header(&p.requestHeader, &r.responseHeader); Service_FindServers(server, &p, &r); UA_FindServersRequest_deleteMembers(&p); UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r, &UA_TYPES[UA_TYPES_FINDSERVERSRESPONSE]); UA_FindServersResponse_deleteMembers(&r); break; } case UA_NS0ID_CREATESESSIONREQUEST: { UA_CreateSessionRequest p; UA_CreateSessionResponse r; if(UA_CreateSessionRequest_decodeBinary(msg, pos, &p)) return; UA_CreateSessionResponse_init(&r); init_response_header(&p.requestHeader, &r.responseHeader); Service_CreateSession(server, clientChannel, &p, &r); UA_CreateSessionRequest_deleteMembers(&p); UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r, &UA_TYPES[UA_TYPES_CREATESESSIONRESPONSE]); UA_CreateSessionResponse_deleteMembers(&r); break; } case UA_NS0ID_ACTIVATESESSIONREQUEST: { UA_ActivateSessionRequest p; UA_ActivateSessionResponse r; if(UA_ActivateSessionRequest_decodeBinary(msg, pos, &p)) return; UA_ActivateSessionResponse_init(&r); init_response_header(&p.requestHeader, &r.responseHeader); Service_ActivateSession(server, clientChannel, &p, &r); UA_ActivateSessionRequest_deleteMembers(&p); UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r, &UA_TYPES[UA_TYPES_ACTIVATESESSIONRESPONSE]); UA_ActivateSessionResponse_deleteMembers(&r); break; } case UA_NS0ID_CLOSESESSIONREQUEST: INVOKE_SERVICE(CloseSession, UA_TYPES_CLOSESESSIONRESPONSE); break; case UA_NS0ID_READREQUEST: INVOKE_SERVICE(Read, UA_TYPES_READRESPONSE); break; case UA_NS0ID_WRITEREQUEST: INVOKE_SERVICE(Write, UA_TYPES_WRITERESPONSE); break; case UA_NS0ID_BROWSEREQUEST: INVOKE_SERVICE(Browse, UA_TYPES_BROWSERESPONSE); break; case UA_NS0ID_BROWSENEXTREQUEST: INVOKE_SERVICE(BrowseNext, UA_TYPES_BROWSENEXTRESPONSE); break; case UA_NS0ID_ADDREFERENCESREQUEST: INVOKE_SERVICE(AddReferences, UA_TYPES_ADDREFERENCESRESPONSE); break; case UA_NS0ID_REGISTERNODESREQUEST: INVOKE_SERVICE(RegisterNodes, UA_TYPES_REGISTERNODESRESPONSE); break; case UA_NS0ID_UNREGISTERNODESREQUEST: INVOKE_SERVICE(UnregisterNodes, UA_TYPES_UNREGISTERNODESRESPONSE); break; case UA_NS0ID_TRANSLATEBROWSEPATHSTONODEIDSREQUEST: INVOKE_SERVICE(TranslateBrowsePathsToNodeIds, UA_TYPES_TRANSLATEBROWSEPATHSTONODEIDSRESPONSE); break; default: { if(requestType.namespaceIndex == 0 && requestType.identifier.numeric==787) UA_LOG_INFO(server->logger, UA_LOGCATEGORY_COMMUNICATION, "Client requested a subscription that are not supported, the message will be skipped"); else UA_LOG_INFO(server->logger, UA_LOGCATEGORY_COMMUNICATION, "Unknown request: NodeId(ns=%d, i=%d)", requestType.namespaceIndex, requestType.identifier.numeric); UA_RequestHeader p; UA_ResponseHeader r; if(UA_RequestHeader_decodeBinary(msg, pos, &p) != UA_STATUSCODE_GOOD) return; UA_ResponseHeader_init(&r); init_response_header(&p, &r); r.serviceResult = UA_STATUSCODE_BADSERVICEUNSUPPORTED; #ifdef EXTENSION_STATELESS if(retval != UA_STATUSCODE_GOOD) r.serviceResult = retval; #endif UA_RequestHeader_deleteMembers(&p); UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r, &UA_TYPES[UA_TYPES_RESPONSEHEADER]); break; } } }