Beispiel #1
0
/************************************************************************
* Function : searchExpired											
*																	
* Parameters:														
*		IN void * arg:
*
* Description:														
*	This function 
*
* Returns: void
*
***************************************************************************/
void
searchExpired( void *arg )
{

    int *id = ( int * )arg;
    int handle = -1;
    struct Handle_Info *ctrlpt_info = NULL;

    //remove search Target from list and call client back
    ListNode *node = NULL;
    SsdpSearchArg *item;
    Upnp_FunPtr ctrlpt_callback;
    void *cookie = NULL;
    int found = 0;

    HandleLock(  );

    //remove search target from search list

    if( GetClientHandleInfo( &handle, &ctrlpt_info ) != HND_CLIENT ) {
        free( id );
        HandleUnlock(  );
        return;
    }

    ctrlpt_callback = ctrlpt_info->Callback;

    node = ListHead( &ctrlpt_info->SsdpSearchList );

    while( node != NULL ) {
        item = ( SsdpSearchArg * ) node->item;
        if( item->timeoutEventId == ( *id ) ) {
            free( item->searchTarget );
            cookie = item->cookie;
            found = 1;
            item->searchTarget = NULL;
            free( item );
            ListDelNode( &ctrlpt_info->SsdpSearchList, node, 0 );
            break;
        }
        node = ListNext( &ctrlpt_info->SsdpSearchList, node );
    }
    HandleUnlock(  );

    if( found ) {
        ctrlpt_callback( UPNP_DISCOVERY_SEARCH_TIMEOUT, NULL, cookie );
    }

    free( id );
}
Beispiel #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);
}
Beispiel #3
0
/************************************************************************
* Function : ssdp_handle_ctrlpt_msg											
*																	
* Parameters:														
*	IN http_message_t* hmsg: SSDP message from the device
*	IN struct sockaddr_in* dest_addr: Address of the device
*	IN xboolean timeout: timeout kept by the control point while sending 
*						search message
*	IN void* cookie: Cookie stored by the control point application. 
*					This cookie will be returned to the control point
*					in the callback 
*																	
* Description:														
*	This function handles the ssdp messages from the devices. These 
*	messages includes the search replies, advertisement of device coming 
*	alive and bye byes.
*
* Returns: void
*
***************************************************************************/
void
ssdp_handle_ctrlpt_msg( IN http_message_t * hmsg,
                        IN struct sockaddr_in *dest_addr,
                        IN xboolean timeout,    // only in search reply

                        IN void *cookie )   // only in search reply
{
    int handle;
    struct Handle_Info *ctrlpt_info = NULL;
    memptr hdr_value;
    xboolean is_byebye;         // byebye or alive
    struct Upnp_Discovery param;
    SsdpEvent event;
    xboolean nt_found,
      usn_found,
      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;
    ResultData *threadData;
    ThreadPoolJob job;

    // we are assuming that there can be only one client supported at a time

    HandleLock(  );

    if( GetClientHandleInfo( &handle, &ctrlpt_info ) != HND_CLIENT ) {
        HandleUnlock(  );
        return;
    }
    // copy
    ctrlpt_callback = ctrlpt_info->Callback;
    ctrlpt_cookie = ctrlpt_info->Cookie;
    HandleUnlock(  );

    // search timeout
    if( timeout ) {
        ctrlpt_callback( UPNP_DISCOVERY_SEARCH_TIMEOUT, NULL, cookie );
        return;
    }

    param.ErrCode = UPNP_E_SUCCESS;

    // MAX-AGE
    param.Expires = -1;         // assume error
    if( httpmsg_find_hdr( hmsg, HDR_CACHE_CONTROL, &hdr_value ) != NULL ) {
        matchstr( hdr_value.buf, hdr_value.length,
                  "%imax-age = %d%0", &param.Expires );
    }

    // DATE
    param.Date[0] = '\0';
    if( httpmsg_find_hdr( hmsg, HDR_DATE, &hdr_value ) != NULL ) {
        linecopylen( param.Date, hdr_value.buf, hdr_value.length );
    }

    // dest addr
    param.DestAddr = dest_addr;

    // EXT
    param.Ext[0] = '\0';
    if( httpmsg_find_hdr( hmsg, HDR_EXT, &hdr_value ) != NULL ) {
        linecopylen( param.Ext, hdr_value.buf, hdr_value.length );
    }
    // LOCATION
    param.Location[0] = '\0';
    if( httpmsg_find_hdr( hmsg, HDR_LOCATION, &hdr_value ) != NULL ) {
        linecopylen( param.Location, hdr_value.buf, hdr_value.length );
    }
    // SERVER / USER-AGENT
    param.Os[0] = '\0';
    if( httpmsg_find_hdr( hmsg, HDR_SERVER, &hdr_value ) != NULL ||
        httpmsg_find_hdr( hmsg, HDR_USER_AGENT, &hdr_value ) != NULL ) {
        linecopylen( param.Os, hdr_value.buf, hdr_value.length );
    }
    // clear everything
    param.DeviceId[0] = '\0';
    param.DeviceType[0] = '\0';
    param.ServiceType[0] = '\0';

    param.ServiceVer[0] = '\0'; // not used; version is in ServiceType

    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 ) {
        strcpy( param.DeviceId, event.UDN );
        strcpy( param.DeviceType, event.DeviceType );
        strcpy( param.ServiceType, 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 ) {
            return;             // error; NTS header not found
        }
        if( memptr_cmp( &hdr_value, "ssdp:alive" ) == 0 ) {
            is_byebye = FALSE;
        } else if( memptr_cmp( &hdr_value, "ssdp:byebye" ) == 0 ) {
            is_byebye = TRUE;
        } else {
            return;             // bad value
        }

        if( is_byebye ) {
            // check device byebye
            if( !nt_found || !usn_found ) {
                return;         // bad byebye
            }
            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 ||
                strlen( param.Location ) == 0 || param.Expires <= 0 ) {
                return;         // bad advertisement
            }

            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 ||
            param.Expires <= 0 ||
            strlen( param.Location ) == 0 || !usn_found || !st_found ) {
            return;             // bad reply
        }
        //check each current search
        HandleLock(  );
        if( GetClientHandleInfo( &handle, &ctrlpt_info ) != HND_CLIENT ) {
            HandleUnlock(  );
            return;
        }
        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;
            matched = 0;
            //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:
                    {
                        int m = min( hdr_value.length,
                                     strlen( searchArg->searchTarget ) );

                        matched = !( strncmp( searchArg->searchTarget,
                                              hdr_value.buf, m ) );
                        break;
                    }
                case SSDP_SERVICE:
                    {
                        int 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 =
                    ( ResultData * ) malloc( sizeof( ResultData ) );
                if( threadData != NULL ) {
                    threadData->param = param;
                    threadData->cookie = searchArg->cookie;
                    threadData->ctrlpt_callback = ctrlpt_callback;
                    TPJobInit( &job, ( start_routine ) send_search_result,
                               threadData );
                    TPJobSetPriority( &job, MED_PRIORITY );
                    TPJobSetFreeFunction( &job, ( free_routine ) free );
                    ThreadPoolAdd( &gRecvThreadPool, &job, NULL );
                }
            }
            node = ListNext( &ctrlpt_info->SsdpSearchList, node );
        }

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