mbed-os/features/net/FEATURE_IPV6/sal-stack-nanostack/nanostack/multicast_api.h

84 lines
2.9 KiB
C

/*
* Copyright (c) 2014-2015 ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: LicenseRef-PBL
*
* Licensed under the Permissive Binary License, Version 1.0 (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.mbed.com/licenses/PBL-1.0
*
* See the License for the specific language governing permissions and limitations under the License.
*
*/
#ifndef MULTICAST_API_H_
#define MULTICAST_API_H_
/**
* \file multicast_api.h
* \brief Multicast Trickle Forwarding API.
* \section multi-init Init API:
* - multicast_set_parameters(), Set trickle parameters.
* \section multi-cnf Configure API:
* - multicast_add_address(), Add new address to a multicast group and control trickle forwarding.
* - multicast_free_address(), Remove supported multicast address from list.
*
* \section ZigBeeIP Trickle Setups for Multicast Init
*
* | Parameter | VALUE |
* | :---------------: | :---: |
* | imin | 10 |
* | imax | 0 |
* | k | 20 |
* | timer_expirations | 3 |
* | window_expiration | 75 |
*
*/
#include "ns_types.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief Set new parameters for trickle multicast.
*
* \param i_min Minimum trickle timer interval in 50ms resolution: Imin = i_min * 50ms.
* \param i_max Maximum trickle timer interval as a number if doubling the minimum interval.
* \param k Redundancy constant.
* \param timer_expirations Number of trickle timer expirations before terminating the trickle process.
* \param window_expiration The time window for keeping the state after the end of trickle process in 50ms resolution.
* NOTE: If window_expiration value is set too small an infinite retransmission loop may occur when using the trickle multicast.
*/
extern void multicast_set_parameters(uint8_t i_min, uint8_t i_max, uint8_t k, uint8_t timer_expirations, uint16_t window_expiration);
/**
* \brief Add new address to multicast group.
*
* \param address_ptr Pointer to a 16-byte array that includes the address to be added.
* \param use_trickle 0 = no trickle multicast forwarding, all other values = trickle multicast forwarding will be used with this address.
*
* \return 0 General error.
* \return 1 Address updated.
* \return 2 Address added.
* \return 255 Link local not allowed when using multicast.
*
*/
extern uint8_t multicast_add_address(const uint8_t *address_ptr, uint8_t use_trickle);
/**
* \brief Free address from multicast group.
*
* \param address_ptr Pointer to a 16-byte array that includes the address to be removed.
*
* \return 0 will be returned on successful execution, other values indicate an error on removing the address.
*/
extern uint8_t multicast_free_address(uint8_t *address_ptr);
#ifdef __cplusplus
}
#endif
#endif /* MULTICAST_API_H_ */