mbed-os/nanostack/ns_mdns_api.h

103 lines
3.2 KiB
C

/*
* Copyright (c) 2017-2018, Arm Limited and affiliates.
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _NS_MDNS_API_H_
#define _NS_MDNS_API_H_
/**
* \file ns_mdns_api.h
* \brief Nanostack mDNS-SD API.
*/
/*!
* \struct ns_mdns_t
* \brief Structure for Nanostack mDNS instance
*/
typedef struct ns_mdns *ns_mdns_t; /**< Instance */
/*!
* \struct ns_mdns_service_t
* \brief Structure for Nanostack mDNS service instance
*/
typedef struct ns_mdns_service *ns_mdns_service_t; /**< Service instance */
/*!
* \struct ns_mdns_service_param_t
* \brief Structure for mDNS service parameters
*/
typedef struct ns_mdns_service_param {
const char *service_type; /**< Null-terminated string owned by the caller */
uint16_t service_port; /**< Service Port number */
const uint8_t *(*service_get_txt)(void); /**< Call-back function, which returns a pointer to the service TXT record (null-terminated).
If the service does not provide any TXT record, this parameter must be set to NULL. */
} ns_mdns_service_param_t;
/**
* \brief Start mDNS server
*
* \param server_name NULL terminated string, max length 63 characters
*
* \param ttl time-to-live value in seconds, if set to 0 default value is used
*
* \param ttl_ip time-to-live in hop count, if set to 0 default value is used
*
* \param interface_id ID of the network interface where mDNS will operate
*
* \return mDNS server instace or NULL in case of failure..
*/
ns_mdns_t ns_mdns_server_start(const char *server_name, uint32_t ttl, uint32_t ttl_ip, int8_t interface_id);
/**
* \brief Stop mDNS server
*
* \param ns_mdns_instance Server instance received from ns_mdns_server_start
*
*/
void ns_mdns_server_stop(ns_mdns_t ns_mdns_instance);
/**
* \brief Register service to mDNS server
*
* \param ns_mdns_instance Server instance received from ns_mdns_server_start
*
* \param service Parameters for service
*
* \return mDNS Service descriptor or NULL in case of failure.
*
*/
ns_mdns_service_t ns_mdns_service_register(ns_mdns_t ns_mdns_instance, ns_mdns_service_param_t *service);
/**
* \brief Unregister service from mDNS server
*
* \param service_desc mDNS Service descriptor received from call to ns_mdns_service_register.
*/
void ns_mdns_service_unregister(ns_mdns_service_t service_desc);
/**
* \brief Send mDNS announcement. Application should call this method once application
* advertised parameters has changed.
*
* \param ns_mdns_instance Server instance received from ns_mdns_server_start
*/
void ns_mdns_announcement_send(ns_mdns_t ns_mdns_instance);
#endif /* _NS_MDNS_API_H_ */