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/*
* Copyright (C) 2014 Freie Universitรคt Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup nhdp
* @{
*
* @file
* @brief Local Information Base interface for NHDP
*
* @author Fabian Nack <nack@inf.fu-berlin.de>
*/
#ifndef LIB_TABLE_H_
#define LIB_TABLE_H_
#include "kernel_types.h"
#include "rfc5444/rfc5444_writer.h"
#include "nhdp_address.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Local Interface Set entry (local interface tuple)
*/
typedef struct lib_entry {
kernel_pid_t if_pid; /**< PID of the interface's handling thread */
nhdp_addr_entry_t *if_addr_list_head; /**< Pointer to head of this interface's addr list */
struct lib_entry *next; /**< Pointer to next list entry */
} lib_entry_t;
/**
* @brief Add an interface to the Local Information Base
*
* This function can also be used to add an additional address to an existing LIB tuple.
*
* @param[in] if_pid PID of the interface
* @param[in] addr The (additional) NHDP address to register for the interface
*
* @return 0 on success
* @return -1 on error
*/
int lib_add_if_addr(kernel_pid_t if_pid, nhdp_addr_t *addr);
/**
* @brief Remove a given interface's Local Information Base entry
*
* @param[in] if_pid PID of the interface that should be removed
*/
void lib_rem_if(kernel_pid_t if_pid);
/**
* @brief Add addresses to the currently constructed HELLO message
*
* @note
* Must not be called from outside the NHDP writer's message creation process.
*
* @param[in] if_pid PID of the interface the message is constructed for
* @param[in] wr The NHDP writer used for message construction
*/
void lib_fill_wr_addresses(kernel_pid_t if_pid, struct rfc5444_writer *wr);
/**
* @brief Check whether a given NHDP address is used as a local address
*
* @param[in] if_pid PID of the interface to check for
* @param[in] addr Pointer to the NHDP address that has to be checked
*
* @return 1 if the given address is assigned to the given interface
* @return 2 if the given address is assigned to any other local interface
* @return 0 otherwise
*/
uint8_t lib_is_reg_addr(kernel_pid_t if_pid, nhdp_addr_t *addr);
#ifdef __cplusplus
}
#endif
#endif /* LIB_TABLE_H_ */
/** @} */
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