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74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
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* Copyright (C) 2014 Martin Landsmann <Martin.Landsmann@HAW-Hamburg.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup net_fib
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* @{
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*
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* @file
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* @brief Types and functions for operating fib tables
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*
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* @author Martin Landsmann <martin.landsmann@haw-hamburg.de>
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*/
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#ifndef FIB_TABLE_H_
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#define FIB_TABLE_H_
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#include <stdint.h>
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#include "kernel_types.h"
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#include "universal_address.h"
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#include "mutex.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief maximum number of handled routing protocols (RP)
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* used to notify the saved kernel_pid_t on unreachable destination
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*/
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#define FIB_MAX_REGISTERED_RP (5)
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/**
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* @brief Container descriptor for a FIB entry
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*/
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typedef struct fib_entry_t {
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/** interface ID */
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kernel_pid_t iface_id;
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/** Lifetime of this entry (an absolute time-point is stored by the FIB) */
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uint64_t lifetime;
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/** Unique identifier for the type of the global address */
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uint32_t global_flags;
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/** Pointer to the shared generic address */
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struct universal_address_container_t *global;
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/** Unique identifier for the type of the next hop address */
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uint32_t next_hop_flags;
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/** Pointer to the shared generic address */
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struct universal_address_container_t *next_hop;
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} fib_entry_t;
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/**
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* @brief Meta information about the FIB table
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*/
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typedef struct {
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fib_entry_t *entries; /**< array holding the FIB entries */
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size_t size; /**< number of entries in this table */
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mutex_t mtx_access; /** access mutex to control exclusive operations on calls */
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size_t notify_rp_pos; /** registered RPs for notifications about unreachable destinations */
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kernel_pid_t notify_rp[FIB_MAX_REGISTERED_RP]; /** the kernel_pid_t for notifying the RPs */
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universal_address_container_t* prefix_rp[FIB_MAX_REGISTERED_RP]; /** prefix handled by the RP */
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} fib_table_t;
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#ifdef __cplusplus
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}
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#endif
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#endif /* FIB_TABLE_H_ */
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/** @} */
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