AJ_Status AJ_Authenticate(AJ_BusAttachment* bus) { AJ_Status status = AJ_OK; AJ_SASL_Context sasl; /* * Send initial NUL byte */ bus->sock.tx.writePtr[0] = 0; bus->sock.tx.writePtr += 1; status = bus->sock.tx.send(&bus->sock.tx); if (status != AJ_OK) { AJ_InfoPrintf(("AJ_Authenticate(): status=%s\n", AJ_StatusText(status))); goto ExitConnect; } AJ_SASL_InitContext(&sasl, mechList, AJ_AUTH_RESPONDER, busAuthPwdFunc, FALSE); while (TRUE) { status = AuthAdvance(&sasl, &bus->sock.rx, &bus->sock.tx); if ((status != AJ_OK) || (sasl.state == AJ_SASL_FAILED)) { break; } if (sasl.state == AJ_SASL_AUTHENTICATED) { status = SendHello(bus); break; } } if (status == AJ_OK) { AJ_Message helloResponse; status = AJ_UnmarshalMsg(bus, &helloResponse, 5000); if (status == AJ_OK) { /* * The only error we might get is a timeout */ if (helloResponse.hdr->msgType == AJ_MSG_ERROR) { status = AJ_ERR_TIMEOUT; } else { AJ_Arg arg; status = AJ_UnmarshalArg(&helloResponse, &arg); if (status == AJ_OK) { if (arg.len >= (sizeof(bus->uniqueName) - 1)) { AJ_ErrPrintf(("AJ_Authenticate(): AJ_ERR_RESOURCES\n")); status = AJ_ERR_RESOURCES; } else { memcpy(bus->uniqueName, arg.val.v_string, arg.len); bus->uniqueName[arg.len] = '\0'; } } } AJ_CloseMsg(&helloResponse); // subscribe to the signal NameOwnerChanged and wait for the response status = AJ_BusSetSignalRule(bus, "type='signal',member='NameOwnerChanged',interface='org.freedesktop.DBus'", AJ_BUS_SIGNAL_ALLOW); if (status == AJ_OK) { uint8_t found_reply = FALSE; AJ_Message msg; AJ_Time timer; AJ_InitTimer(&timer); while (found_reply == FALSE && AJ_GetElapsedTime(&timer, TRUE) < 3000) { status = AJ_UnmarshalMsg(bus, &msg, 3000); if (status == AJ_OK) { switch (msg.msgId) { case AJ_REPLY_ID(AJ_METHOD_ADD_MATCH): found_reply = TRUE; break; default: // ignore everything else AJ_BusHandleBusMessage(&msg); break; } AJ_CloseMsg(&msg); } } } } } ExitConnect: if (status != AJ_OK) { AJ_InfoPrintf(("AJ_Authenticate(): status=%s\n", AJ_StatusText(status))); } return status; }
AJ_Status AJ_Connect(AJ_BusAttachment* bus, const char* serviceName, uint32_t timeout) { AJ_Status status; AJ_SASL_Context sasl; AJ_Service service; /* * Clear the bus struct */ memset(bus, 0, sizeof(AJ_BusAttachment)); /* * Clear stale name->GUID mappings */ AJ_GUID_ClearNameMap(); /* * Host-specific network bring-up procedure. This includes establishing a connection to the * network and initializing the I/O buffers. */ status = AJ_Net_Up(); if (status != AJ_OK) { return status; } /* * Discover a daemon or service to connect to */ if (!serviceName) { serviceName = daemonService; } #if AJ_CONNECT_LOCALHOST service.ipv4port = 9955; #if HOST_IS_LITTLE_ENDIAN service.ipv4 = 0x0100007F; // 127.0.0.1 #endif #if HOST_IS_BIG_ENDIAN service.ipv4 = 0x7f000001; // 127.0.0.1 #endif service.addrTypes = AJ_ADDR_IPV4; #elif defined ARDUINO service.ipv4port = 9955; service.ipv4 = 0x6501A8C0; // 192.168.1.101 service.addrTypes = AJ_ADDR_IPV4; status = AJ_Discover(serviceName, &service, timeout); if (status != AJ_OK) { goto ExitConnect; } #elif defined AJ_SERIAL_CONNECTION // don't bother with discovery, we are connected to a daemon. #else status = AJ_Discover(serviceName, &service, timeout); if (status != AJ_OK) { goto ExitConnect; } #endif status = AJ_Net_Connect(&bus->sock, service.ipv4port, service.addrTypes & AJ_ADDR_IPV4, &service.ipv4); if (status != AJ_OK) { goto ExitConnect; } /* * Send initial NUL byte */ bus->sock.tx.writePtr[0] = 0; bus->sock.tx.writePtr += 1; status = bus->sock.tx.send(&bus->sock.tx); if (status != AJ_OK) { goto ExitConnect; } AJ_SASL_InitContext(&sasl, mechList, AJ_AUTH_RESPONDER, busAuthPwdFunc); while (TRUE) { status = AuthAdvance(&sasl, &bus->sock.rx, &bus->sock.tx); if ((status != AJ_OK) || (sasl.state == AJ_SASL_FAILED)) { break; } if (sasl.state == AJ_SASL_AUTHENTICATED) { status = SendHello(bus); break; } } if (status == AJ_OK) { AJ_Message helloResponse; status = AJ_UnmarshalMsg(bus, &helloResponse, 5000); if (status == AJ_OK) { /* * The only error we might get is a timeout */ if (helloResponse.hdr->msgType == AJ_MSG_ERROR) { status = AJ_ERR_TIMEOUT; } else { AJ_Arg arg; status = AJ_UnmarshalArg(&helloResponse, &arg); if (status == AJ_OK) { if (arg.len >= (sizeof(bus->uniqueName) - 1)) { status = AJ_ERR_RESOURCES; } else { memcpy(bus->uniqueName, arg.val.v_string, arg.len); bus->uniqueName[arg.len] = '\0'; } } } AJ_CloseMsg(&helloResponse); } } ExitConnect: if (status != AJ_OK) { AJ_Printf("AllJoyn connect failed %d\n", status); AJ_Disconnect(bus); } return status; }