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/*
* Copyright (C) 2003 Yasuhiro Ohara
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra 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 GNU Zebra; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef OSPF6_ROUTE_H
#define OSPF6_ROUTE_H
#define OSPF6_MULTI_PATH_LIMIT 4
/* Debug option */
extern unsigned char conf_debug_ospf6_route;
#define OSPF6_DEBUG_ROUTE_TABLE 0x01
#define OSPF6_DEBUG_ROUTE_INTRA 0x02
#define OSPF6_DEBUG_ROUTE_INTER 0x04
#define OSPF6_DEBUG_ROUTE_ON(level) \
(conf_debug_ospf6_route |= (level))
#define OSPF6_DEBUG_ROUTE_OFF(level) \
(conf_debug_ospf6_route &= ~(level))
#define IS_OSPF6_DEBUG_ROUTE(e) \
(conf_debug_ospf6_route & OSPF6_DEBUG_ROUTE_ ## e)
/* Nexthop */
struct ospf6_nexthop
{
/* Interface index */
unsigned int ifindex;
/* IP address, if any */
struct in6_addr address;
};
#define ospf6_nexthop_is_set(x) \
((x)->ifindex || ! IN6_IS_ADDR_UNSPECIFIED (&(x)->address))
#define ospf6_nexthop_is_same(a,b) \
((a)->ifindex == (b)->ifindex && \
IN6_ARE_ADDR_EQUAL (&(a)->address, &(b)->address))
#define ospf6_nexthop_clear(x) \
do { \
(x)->ifindex = 0; \
memset (&(x)->address, 0, sizeof (struct in6_addr)); \
} while (0)
#define ospf6_nexthop_copy(a, b) \
do { \
(a)->ifindex = (b)->ifindex; \
memcpy (&(a)->address, &(b)->address, \
sizeof (struct in6_addr)); \
} while (0)
/* Path */
struct ospf6_ls_origin
{
u_int16_t type;
u_int32_t id;
u_int32_t adv_router;
};
struct ospf6_path
{
/* Link State Origin */
struct ospf6_ls_origin origin;
/* Router bits */
u_char router_bits;
/* Optional Capabilities */
u_char options[3];
/* Prefix Options */
u_char prefix_options;
/* Associated Area */
u_int32_t area_id;
/* Path-type */
u_char type;
u_char subtype; /* only used for redistribute i.e ZEBRA_ROUTE_XXX */
/* Cost */
u_int8_t metric_type;
u_int32_t cost;
u_int32_t cost_e2;
};
#define OSPF6_PATH_TYPE_NONE 0
#define OSPF6_PATH_TYPE_INTRA 1
#define OSPF6_PATH_TYPE_INTER 2
#define OSPF6_PATH_TYPE_EXTERNAL1 3
#define OSPF6_PATH_TYPE_EXTERNAL2 4
#define OSPF6_PATH_TYPE_REDISTRIBUTE 5
#define OSPF6_PATH_TYPE_MAX 6
#include "prefix.h"
#include "table.h"
struct ospf6_route
{
struct route_node *rnode;
struct ospf6_route *prev;
struct ospf6_route *next;
unsigned int lock;
/* Destination Type */
u_char type;
/* Destination ID */
struct prefix prefix;
/* Time */
struct timeval installed;
struct timeval changed;
/* flag */
u_char flag;
/* path */
struct ospf6_path path;
/* nexthop */
struct ospf6_nexthop nexthop[OSPF6_MULTI_PATH_LIMIT];
/* route option */
void *route_option;
/* link state id for advertising */
u_int32_t linkstate_id;
};
#define OSPF6_DEST_TYPE_NONE 0
#define OSPF6_DEST_TYPE_ROUTER 1
#define OSPF6_DEST_TYPE_NETWORK 2
#define OSPF6_DEST_TYPE_DISCARD 3
#define OSPF6_DEST_TYPE_LINKSTATE 4
#define OSPF6_DEST_TYPE_RANGE 5
#define OSPF6_DEST_TYPE_MAX 6
#define OSPF6_ROUTE_CHANGE 0x01
#define OSPF6_ROUTE_ADD 0x02
#define OSPF6_ROUTE_REMOVE 0x04
#define OSPF6_ROUTE_BEST 0x08
#define OSPF6_ROUTE_ACTIVE_SUMMARY 0x10
#define OSPF6_ROUTE_DO_NOT_ADVERTISE 0x20
#define OSPF6_ROUTE_WAS_REMOVED 0x40
struct ospf6_route_table
{
/* patricia tree */
struct route_table *table;
u_int32_t count;
/* hooks */
void (*hook_add) (struct ospf6_route *);
void (*hook_change) (struct ospf6_route *);
void (*hook_remove) (struct ospf6_route *);
};
extern const char *ospf6_dest_type_str[OSPF6_DEST_TYPE_MAX];
extern const char *ospf6_dest_type_substr[OSPF6_DEST_TYPE_MAX];
#define OSPF6_DEST_TYPE_NAME(x) \
(0 < (x) && (x) < OSPF6_DEST_TYPE_MAX ? \
ospf6_dest_type_str[(x)] : ospf6_dest_type_str[0])
#define OSPF6_DEST_TYPE_SUBSTR(x) \
(0 < (x) && (x) < OSPF6_DEST_TYPE_MAX ? \
ospf6_dest_type_substr[(x)] : ospf6_dest_type_substr[0])
extern const char *ospf6_path_type_str[OSPF6_PATH_TYPE_MAX];
extern const char *ospf6_path_type_substr[OSPF6_PATH_TYPE_MAX];
#define OSPF6_PATH_TYPE_NAME(x) \
(0 < (x) && (x) < OSPF6_PATH_TYPE_MAX ? \
ospf6_path_type_str[(x)] : ospf6_path_type_str[0])
#define OSPF6_PATH_TYPE_SUBSTR(x) \
(0 < (x) && (x) < OSPF6_PATH_TYPE_MAX ? \
ospf6_path_type_substr[(x)] : ospf6_path_type_substr[0])
#define OSPF6_ROUTE_ADDRESS_STR "Display the route bestmatches the address\n"
#define OSPF6_ROUTE_PREFIX_STR "Display the route\n"
#define OSPF6_ROUTE_MATCH_STR "Display the route matches the prefix\n"
#define ospf6_route_is_prefix(p, r) \
(memcmp (p, &(r)->prefix, sizeof (struct prefix)) == 0)
#define ospf6_route_is_same(ra, rb) \
(prefix_same (&(ra)->prefix, &(rb)->prefix))
#define ospf6_route_is_same_origin(ra, rb) \
((ra)->path.area_id == (rb)->path.area_id && \
memcmp (&(ra)->path.origin, &(rb)->path.origin, \
sizeof (struct ospf6_ls_origin)) == 0)
#define ospf6_route_is_identical(ra, rb) \
((ra)->type == (rb)->type && \
memcmp (&(ra)->prefix, &(rb)->prefix, sizeof (struct prefix)) == 0 && \
memcmp (&(ra)->path, &(rb)->path, sizeof (struct ospf6_path)) == 0 && \
memcmp (&(ra)->nexthop, &(rb)->nexthop, \
sizeof (struct ospf6_nexthop) * OSPF6_MULTI_PATH_LIMIT) == 0)
#define ospf6_route_is_best(r) (CHECK_FLAG ((r)->flag, OSPF6_ROUTE_BEST))
#define ospf6_linkstate_prefix_adv_router(x) \
(*(u_int32_t *)(&(x)->u.prefix6.s6_addr[0]))
#define ospf6_linkstate_prefix_id(x) \
(*(u_int32_t *)(&(x)->u.prefix6.s6_addr[4]))
#define ADV_ROUTER_IN_PREFIX(x) \
(*(u_int32_t *)(&(x)->u.prefix6.s6_addr[0]))
#define ID_IN_PREFIX(x) \
(*(u_int32_t *)(&(x)->u.prefix6.s6_addr[4]))
/* Function prototype */
void ospf6_linkstate_prefix (u_int32_t adv_router, u_int32_t id,
struct prefix *prefix);
void ospf6_linkstate_prefix2str (struct prefix *prefix, char *buf, int size);
struct ospf6_route *ospf6_route_create ();
void ospf6_route_delete (struct ospf6_route *);
struct ospf6_route *ospf6_route_copy (struct ospf6_route *route);
void ospf6_route_lock (struct ospf6_route *route);
void ospf6_route_unlock (struct ospf6_route *route);
struct ospf6_route *
ospf6_route_lookup (struct prefix *prefix,
struct ospf6_route_table *table);
struct ospf6_route *
ospf6_route_lookup_identical (struct ospf6_route *route,
struct ospf6_route_table *table);
struct ospf6_route *
ospf6_route_lookup_bestmatch (struct prefix *prefix,
struct ospf6_route_table *table);
struct ospf6_route *
ospf6_route_add (struct ospf6_route *route, struct ospf6_route_table *table);
void
ospf6_route_remove (struct ospf6_route *route, struct ospf6_route_table *table);
struct ospf6_route *ospf6_route_head (struct ospf6_route_table *table);
struct ospf6_route *ospf6_route_next (struct ospf6_route *route);
struct ospf6_route *ospf6_route_best_next (struct ospf6_route *route);
struct ospf6_route *ospf6_route_match_head (struct prefix *prefix,
struct ospf6_route_table *table);
struct ospf6_route *ospf6_route_match_next (struct prefix *prefix,
struct ospf6_route *route);
void ospf6_route_remove_all (struct ospf6_route_table *);
struct ospf6_route_table *ospf6_route_table_create ();
void ospf6_route_table_delete (struct ospf6_route_table *);
void ospf6_route_dump (struct ospf6_route_table *table);
void ospf6_route_show (struct vty *vty, struct ospf6_route *route);
void ospf6_route_show_detail (struct vty *vty, struct ospf6_route *route);
int ospf6_route_table_show (struct vty *, int, const char *[],
struct ospf6_route_table *);
int ospf6_linkstate_table_show (struct vty *vty, int argc, const char *argv[],
struct ospf6_route_table *table);
void ospf6_brouter_show_header (struct vty *vty);
void ospf6_brouter_show (struct vty *vty, struct ospf6_route *route);
int config_write_ospf6_debug_route (struct vty *vty);
void install_element_ospf6_debug_route ();
void ospf6_route_init ();
#endif /* OSPF6_ROUTE_H */
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