mirror of
https://git.proxmox.com/git/mirror_frr
synced 2025-10-31 16:56:31 +00:00
d7c0a89a3a
The following types are nonstandard: - u_char - u_short - u_int - u_long - u_int8_t - u_int16_t - u_int32_t Replace them with the C99 standard types: - uint8_t - unsigned short - unsigned int - unsigned long - uint8_t - uint16_t - uint32_t Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
128 lines
4.4 KiB
C
128 lines
4.4 KiB
C
/*
|
|
* IS-IS Rout(e)ing protocol - isis_adjacency.h
|
|
* IS-IS adjacency handling
|
|
*
|
|
* Copyright (C) 2001,2002 Sampo Saaristo
|
|
* Tampere University of Technology
|
|
* Institute of Communications Engineering
|
|
*
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public Licenseas published by the Free
|
|
* Software Foundation; either version 2 of the License, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; see the file COPYING; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _ZEBRA_ISIS_ADJACENCY_H
|
|
#define _ZEBRA_ISIS_ADJACENCY_H
|
|
|
|
#include "isisd/isis_tlvs.h"
|
|
|
|
enum isis_adj_usage {
|
|
ISIS_ADJ_NONE,
|
|
ISIS_ADJ_LEVEL1,
|
|
ISIS_ADJ_LEVEL2,
|
|
ISIS_ADJ_LEVEL1AND2
|
|
};
|
|
|
|
enum isis_system_type {
|
|
ISIS_SYSTYPE_UNKNOWN,
|
|
ISIS_SYSTYPE_ES,
|
|
ISIS_SYSTYPE_IS,
|
|
ISIS_SYSTYPE_L1_IS,
|
|
ISIS_SYSTYPE_L2_IS
|
|
};
|
|
|
|
enum isis_adj_state {
|
|
ISIS_ADJ_UNKNOWN,
|
|
ISIS_ADJ_INITIALIZING,
|
|
ISIS_ADJ_UP,
|
|
ISIS_ADJ_DOWN
|
|
};
|
|
|
|
/*
|
|
* we use the following codes to give an indication _why_
|
|
* a specific adjacency is up or down
|
|
*/
|
|
enum isis_adj_updown_reason {
|
|
ISIS_ADJ_REASON_SEENSELF,
|
|
ISIS_ADJ_REASON_AREA_MISMATCH,
|
|
ISIS_ADJ_REASON_HOLDTIMER_EXPIRED,
|
|
ISIS_ADJ_REASON_AUTH_FAILED,
|
|
ISIS_ADJ_REASON_CHECKSUM_FAILED
|
|
};
|
|
|
|
#define DIS_RECORDS 8 /* keep the last 8 DIS state changes on record */
|
|
|
|
struct isis_dis_record {
|
|
int dis; /* is our neighbor the DIS ? */
|
|
time_t last_dis_change; /* timestamp for last dis change */
|
|
};
|
|
|
|
struct isis_adjacency {
|
|
uint8_t snpa[ETH_ALEN]; /* NeighbourSNPAAddress */
|
|
uint8_t sysid[ISIS_SYS_ID_LEN]; /* neighbourSystemIdentifier */
|
|
uint8_t lanid[ISIS_SYS_ID_LEN + 1]; /* LAN id on bcast circuits */
|
|
int dischanges[ISIS_LEVELS]; /* how many DIS changes ? */
|
|
/* an array of N levels for M records */
|
|
struct isis_dis_record dis_record[DIS_RECORDS * ISIS_LEVELS];
|
|
enum isis_adj_state adj_state; /* adjacencyState */
|
|
enum isis_adj_usage adj_usage; /* adjacencyUsage */
|
|
struct area_addr *area_addresses; /* areaAdressesOfNeighbour */
|
|
unsigned int area_address_count;
|
|
struct nlpids nlpids; /* protocols spoken ... */
|
|
struct in_addr *ipv4_addresses;
|
|
unsigned int ipv4_address_count;
|
|
struct in_addr router_address;
|
|
struct in6_addr *ipv6_addresses;
|
|
unsigned int ipv6_address_count;
|
|
struct in6_addr router_address6;
|
|
uint8_t prio[ISIS_LEVELS]; /* priorityOfNeighbour for DIS */
|
|
int circuit_t; /* from hello PDU hdr */
|
|
int level; /* level (1 or 2) */
|
|
enum isis_system_type sys_type; /* neighbourSystemType */
|
|
uint16_t hold_time; /* entryRemainingTime */
|
|
uint32_t last_upd;
|
|
uint32_t last_flap; /* last time the adj flapped */
|
|
enum isis_threeway_state threeway_state;
|
|
uint32_t ext_circuit_id;
|
|
int flaps; /* number of adjacency flaps */
|
|
struct thread *t_expire; /* expire after hold_time */
|
|
struct isis_circuit *circuit; /* back pointer */
|
|
uint16_t *mt_set; /* Topologies this adjacency is valid for */
|
|
unsigned int mt_count; /* Number of entries in mt_set */
|
|
};
|
|
|
|
struct isis_threeway_adj;
|
|
|
|
struct isis_adjacency *isis_adj_lookup(const uint8_t *sysid,
|
|
struct list *adjdb);
|
|
struct isis_adjacency *isis_adj_lookup_snpa(const uint8_t *ssnpa,
|
|
struct list *adjdb);
|
|
struct isis_adjacency *isis_new_adj(const uint8_t *id, const uint8_t *snpa,
|
|
int level, struct isis_circuit *circuit);
|
|
void isis_delete_adj(void *adj);
|
|
void isis_adj_process_threeway(struct isis_adjacency *adj,
|
|
struct isis_threeway_adj *tw_adj,
|
|
enum isis_adj_usage adj_usage);
|
|
void isis_adj_state_change(struct isis_adjacency *adj,
|
|
enum isis_adj_state state, const char *reason);
|
|
void isis_adj_print(struct isis_adjacency *adj);
|
|
int isis_adj_expire(struct thread *thread);
|
|
void isis_adj_print_vty(struct isis_adjacency *adj, struct vty *vty,
|
|
char detail);
|
|
void isis_adj_build_neigh_list(struct list *adjdb, struct list *list);
|
|
void isis_adj_build_up_list(struct list *adjdb, struct list *list);
|
|
int isis_adj_usage2levels(enum isis_adj_usage usage);
|
|
|
|
#endif /* ISIS_ADJACENCY_H */
|