Exemple #1
0
void SSDPResultData_assign(SSDPResultData *q, const SSDPResultData *p)
{
	if (q != p) {
		SSDPResultData_set_Param(q, SSDPResultData_get_Param(p));
		SSDPResultData_set_Cookie(q, SSDPResultData_get_Cookie(p));
		SSDPResultData_set_CtrlptCallback(q, SSDPResultData_get_CtrlptCallback(p));
	}
}
Exemple #2
0
void ssdp_handle_ctrlpt_msg(http_message_t *hmsg, struct sockaddr_storage *dest_addr,
			    int timeout, void *cookie)
{
	int handle;
	struct Handle_Info *ctrlpt_info = NULL;
	memptr hdr_value;
	/* byebye or alive */
	int is_byebye;
	UpnpDiscovery *param = UpnpDiscovery_new();
	int expires;
	int ret;
	SsdpEvent event;
	int nt_found;
	int usn_found;
	int st_found;
	char save_char;
	Upnp_EventType event_type;
	Upnp_FunPtr ctrlpt_callback;
	void *ctrlpt_cookie;
	ListNode *node = NULL;
	SsdpSearchArg *searchArg = NULL;
	int matched = 0;
	SSDPResultData *threadData = NULL;
	ThreadPoolJob job;

	memset(&job, 0, sizeof(job));

	/* we are assuming that there can be only one client supported at a time */
	HandleReadLock();

	if (GetClientHandleInfo(&handle, &ctrlpt_info) != HND_CLIENT) {
		HandleUnlock();
		goto end_ssdp_handle_ctrlpt_msg;
	}
	/* copy */
	ctrlpt_callback = ctrlpt_info->Callback;
	ctrlpt_cookie = ctrlpt_info->Cookie;
	HandleUnlock();
	/* search timeout */
	if (timeout) {
		ctrlpt_callback(UPNP_DISCOVERY_SEARCH_TIMEOUT, NULL, cookie);
		goto end_ssdp_handle_ctrlpt_msg;
	}

	UpnpDiscovery_set_ErrCode(param, UPNP_E_SUCCESS);
	/* MAX-AGE, assume error */
	expires = -1;
	UpnpDiscovery_set_Expires(param, expires);
	if (httpmsg_find_hdr(hmsg, HDR_CACHE_CONTROL, &hdr_value) != NULL) {
		ret = matchstr(hdr_value.buf, hdr_value.length,
			"%imax-age = %d%0", &expires);
		UpnpDiscovery_set_Expires(param, expires);
		if (ret != PARSE_OK)
			goto end_ssdp_handle_ctrlpt_msg;
	}
	/* DATE */
	if (httpmsg_find_hdr(hmsg, HDR_DATE, &hdr_value) != NULL) {
		UpnpDiscovery_strcpy_Date(param, hdr_value.buf);
	}
	/* dest addr */
	UpnpDiscovery_set_DestAddr(param, dest_addr);
	/* EXT */
	if (httpmsg_find_hdr(hmsg, HDR_EXT, &hdr_value) != NULL) {
		UpnpDiscovery_strncpy_Ext(param, hdr_value.buf,
					  hdr_value.length);
	}
	/* LOCATION */
	if (httpmsg_find_hdr(hmsg, HDR_LOCATION, &hdr_value) != NULL) {
		UpnpDiscovery_strncpy_Location(param, hdr_value.buf,
					       hdr_value.length);
	}
	/* SERVER / USER-AGENT */
	if (httpmsg_find_hdr(hmsg, HDR_SERVER, &hdr_value) != NULL ||
	    httpmsg_find_hdr(hmsg, HDR_USER_AGENT, &hdr_value) != NULL) {
		UpnpDiscovery_strncpy_Os(param, hdr_value.buf,
					 hdr_value.length);
	}
	/* clear everything */
	event.UDN[0] = '\0';
	event.DeviceType[0] = '\0';
	event.ServiceType[0] = '\0';
	nt_found = FALSE;
	if (httpmsg_find_hdr(hmsg, HDR_NT, &hdr_value) != NULL) {
		save_char = hdr_value.buf[hdr_value.length];
		hdr_value.buf[hdr_value.length] = '\0';
		nt_found = (ssdp_request_type(hdr_value.buf, &event) == 0);
		hdr_value.buf[hdr_value.length] = save_char;
	}
	usn_found = FALSE;
	if (httpmsg_find_hdr(hmsg, HDR_USN, &hdr_value) != NULL) {
		save_char = hdr_value.buf[hdr_value.length];
		hdr_value.buf[hdr_value.length] = '\0';
		usn_found = (unique_service_name(hdr_value.buf, &event) == 0);
		hdr_value.buf[hdr_value.length] = save_char;
	}
	if (nt_found || usn_found) {
		UpnpDiscovery_strcpy_DeviceID(param, event.UDN);
		UpnpDiscovery_strcpy_DeviceType(param, event.DeviceType);
		UpnpDiscovery_strcpy_ServiceType(param, event.ServiceType);
	}
	/* ADVERT. OR BYEBYE */
	if (hmsg->is_request) {
		/* use NTS hdr to determine advert., or byebye */
		if (httpmsg_find_hdr(hmsg, HDR_NTS, &hdr_value) == NULL) {
			/* error; NTS header not found */
			goto end_ssdp_handle_ctrlpt_msg;
		}
		if (memptr_cmp(&hdr_value, "ssdp:alive") == 0) {
			is_byebye = FALSE;
		} else if (memptr_cmp(&hdr_value, "ssdp:byebye") == 0) {
			is_byebye = TRUE;
		} else {
			/* bad value */
			goto end_ssdp_handle_ctrlpt_msg;
		}
		if (is_byebye) {
			/* check device byebye */
			if (!nt_found || !usn_found) {
				/* bad byebye */
				goto end_ssdp_handle_ctrlpt_msg;
			}
			event_type = UPNP_DISCOVERY_ADVERTISEMENT_BYEBYE;
		} else {
			/* check advertisement.
			 * Expires is valid if positive. This is for testing
			 * only. Expires should be greater than 1800 (30 mins) */
			if (!nt_found ||
			    !usn_found ||
			    UpnpString_get_Length(UpnpDiscovery_get_Location(param)) == 0 ||
			    UpnpDiscovery_get_Expires(param) <= 0) {
				/* bad advertisement */
				goto end_ssdp_handle_ctrlpt_msg;
			}
			event_type = UPNP_DISCOVERY_ADVERTISEMENT_ALIVE;
		}
		/* call callback */
		ctrlpt_callback(event_type, param, ctrlpt_cookie);
	} else {
		/* reply (to a SEARCH) */
		/* only checking to see if there is a valid ST header */
		st_found = FALSE;
		if (httpmsg_find_hdr(hmsg, HDR_ST, &hdr_value) != NULL) {
			save_char = hdr_value.buf[hdr_value.length];
			hdr_value.buf[hdr_value.length] = '\0';
			st_found =
			    ssdp_request_type(hdr_value.buf, &event) == 0;
			hdr_value.buf[hdr_value.length] = save_char;
		}
		if (hmsg->status_code != HTTP_OK ||
		    UpnpDiscovery_get_Expires(param) <= 0 ||
		    UpnpString_get_Length(UpnpDiscovery_get_Location(param)) == 0 ||
		    !usn_found || !st_found) {
			/* bad reply */
			goto end_ssdp_handle_ctrlpt_msg;
		}
		/* check each current search */
		HandleLock();
		if (GetClientHandleInfo(&handle, &ctrlpt_info) != HND_CLIENT) {
			HandleUnlock();
			goto end_ssdp_handle_ctrlpt_msg;
		}
		node = ListHead(&ctrlpt_info->SsdpSearchList);
		/* temporary add null termination */
		/*save_char = hdr_value.buf[ hdr_value.length ]; */
		/*hdr_value.buf[ hdr_value.length ] = '\0'; */
		while (node != NULL) {
			searchArg = node->item;
			/* check for match of ST header and search target */
			switch (searchArg->requestType) {
			case SSDP_ALL:
				matched = 1;
				break;
			case SSDP_ROOTDEVICE:
				matched =
				    (event.RequestType == SSDP_ROOTDEVICE);
				break;
			case SSDP_DEVICEUDN:
				matched = !strncmp(searchArg->searchTarget,
						   hdr_value.buf,
						   hdr_value.length);
				break;
			case SSDP_DEVICETYPE:{
					size_t m = min(hdr_value.length,
						       strlen
						       (searchArg->searchTarget));
					matched =
					    !strncmp(searchArg->searchTarget,
						     hdr_value.buf, m);
					break;
				}
			case SSDP_SERVICE:{
					size_t m = min(hdr_value.length,
						       strlen
						       (searchArg->searchTarget));
					matched =
					    !strncmp(searchArg->searchTarget,
						     hdr_value.buf, m);
					break;
				}
			default:
				matched = 0;
				break;
			}
			if (matched) {
				/* schedule call back */
				threadData = SSDPResultData_new();
				if (threadData != NULL) {
					SSDPResultData_set_Param(threadData,
								 param);
					SSDPResultData_set_Cookie(threadData,
								  searchArg->
								  cookie);
					SSDPResultData_set_CtrlptCallback
					    (threadData, ctrlpt_callback);
					TPJobInit(&job, (start_routine)
						  send_search_result,
						  threadData);
					TPJobSetPriority(&job, MED_PRIORITY);
					TPJobSetFreeFunction(&job,
							     (free_routine)
							     SSDPResultData_delete);
					ThreadPoolAdd(&gRecvThreadPool, &job,
						      NULL);
				}
			}
			node = ListNext(&ctrlpt_info->SsdpSearchList, node);
		}

		HandleUnlock();
		/*ctrlpt_callback( UPNP_DISCOVERY_SEARCH_RESULT, param, cookie ); */
	}

end_ssdp_handle_ctrlpt_msg:
	UpnpDiscovery_delete(param);
}