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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.
- */
- #include <zebra.h>
- #include "log.h"
- #include "memory.h"
- #include "prefix.h"
- #include "table.h"
- #include "vty.h"
- #include "command.h"
- #include "linklist.h"
- #include "ospf6_proto.h"
- #include "ospf6_lsa.h"
- #include "ospf6_lsdb.h"
- #include "ospf6_route.h"
- #include "ospf6_top.h"
- #include "ospf6_area.h"
- #include "ospf6_interface.h"
- #include "ospf6d.h"
- unsigned char conf_debug_ospf6_route = 0;
- static char *
- ospf6_route_table_name (struct ospf6_route_table *table)
- {
- static char name[32];
- switch (table->scope_type)
- {
- case OSPF6_SCOPE_TYPE_GLOBAL:
- {
- switch (table->table_type)
- {
- case OSPF6_TABLE_TYPE_ROUTES:
- snprintf (name, sizeof (name), "global route table");
- break;
- case OSPF6_TABLE_TYPE_BORDER_ROUTERS:
- snprintf (name, sizeof (name), "global brouter table");
- break;
- case OSPF6_TABLE_TYPE_EXTERNAL_ROUTES:
- snprintf (name, sizeof (name), "global external table");
- break;
- default:
- snprintf (name, sizeof (name), "global unknown table");
- break;
- }
- }
- break;
- case OSPF6_SCOPE_TYPE_AREA:
- {
- struct ospf6_area *oa = (struct ospf6_area *) table->scope;
- switch (table->table_type)
- {
- case OSPF6_TABLE_TYPE_SPF_RESULTS:
- snprintf (name, sizeof (name),
- "area %s spf table", oa->name);
- break;
- case OSPF6_TABLE_TYPE_ROUTES:
- snprintf (name, sizeof (name),
- "area %s route table", oa->name);
- break;
- case OSPF6_TABLE_TYPE_PREFIX_RANGES:
- snprintf (name, sizeof (name),
- "area %s range table", oa->name);
- break;
- case OSPF6_TABLE_TYPE_SUMMARY_PREFIXES:
- snprintf (name, sizeof (name),
- "area %s summary prefix table", oa->name);
- break;
- case OSPF6_TABLE_TYPE_SUMMARY_ROUTERS:
- snprintf (name, sizeof (name),
- "area %s summary router table", oa->name);
- break;
- default:
- snprintf (name, sizeof (name),
- "area %s unknown table", oa->name);
- break;
- }
- }
- break;
- case OSPF6_SCOPE_TYPE_INTERFACE:
- {
- struct ospf6_interface *oi = (struct ospf6_interface *) table->scope;
- switch (table->table_type)
- {
- case OSPF6_TABLE_TYPE_CONNECTED_ROUTES:
- snprintf (name, sizeof (name), "interface %s connected table",
- oi->interface->name);
- break;
- default:
- snprintf (name, sizeof (name), "interface %s unknown table",
- oi->interface->name);
- break;
- }
- }
- break;
- default:
- {
- switch (table->table_type)
- {
- case OSPF6_TABLE_TYPE_SPF_RESULTS:
- snprintf (name, sizeof (name), "temporary spf table");
- break;
- default:
- snprintf (name, sizeof (name), "temporary unknown table");
- break;
- }
- }
- break;
- }
- return name;
- }
- void
- ospf6_linkstate_prefix (u_int32_t adv_router, u_int32_t id,
- struct prefix *prefix)
- {
- memset (prefix, 0, sizeof (struct prefix));
- prefix->family = AF_INET6;
- prefix->prefixlen = 64;
- memcpy (&prefix->u.prefix6.s6_addr[0], &adv_router, 4);
- memcpy (&prefix->u.prefix6.s6_addr[4], &id, 4);
- }
- void
- ospf6_linkstate_prefix2str (struct prefix *prefix, char *buf, int size)
- {
- u_int32_t adv_router, id;
- char adv_router_str[16], id_str[16];
- memcpy (&adv_router, &prefix->u.prefix6.s6_addr[0], 4);
- memcpy (&id, &prefix->u.prefix6.s6_addr[4], 4);
- inet_ntop (AF_INET, &adv_router, adv_router_str, sizeof (adv_router_str));
- inet_ntop (AF_INET, &id, id_str, sizeof (id_str));
- if (ntohl (id))
- snprintf (buf, size, "%s Net-ID: %s", adv_router_str, id_str);
- else
- snprintf (buf, size, "%s", adv_router_str);
- }
- /* Global strings for logging */
- const char *ospf6_dest_type_str[OSPF6_DEST_TYPE_MAX] =
- { "Unknown", "Router", "Network", "Discard", "Linkstate", "AddressRange", };
- const char *ospf6_dest_type_substr[OSPF6_DEST_TYPE_MAX] =
- { "?", "R", "N", "D", "L", "A", };
- const char *ospf6_path_type_str[OSPF6_PATH_TYPE_MAX] =
- { "Unknown", "Intra-Area", "Inter-Area", "External-1", "External-2", };
- const char *ospf6_path_type_substr[OSPF6_PATH_TYPE_MAX] =
- { "??", "IA", "IE", "E1", "E2", };
- struct ospf6_route *
- ospf6_route_create (void)
- {
- struct ospf6_route *route;
- route = XCALLOC (MTYPE_OSPF6_ROUTE, sizeof (struct ospf6_route));
- return route;
- }
- void
- ospf6_route_delete (struct ospf6_route *route)
- {
- XFREE (MTYPE_OSPF6_ROUTE, route);
- }
- struct ospf6_route *
- ospf6_route_copy (struct ospf6_route *route)
- {
- struct ospf6_route *new;
- new = ospf6_route_create ();
- memcpy (new, route, sizeof (struct ospf6_route));
- new->rnode = NULL;
- new->prev = NULL;
- new->next = NULL;
- new->table = NULL;
- new->lock = 0;
- return new;
- }
- void
- ospf6_route_lock (struct ospf6_route *route)
- {
- route->lock++;
- }
- void
- ospf6_route_unlock (struct ospf6_route *route)
- {
- assert (route->lock > 0);
- route->lock--;
- if (route->lock == 0)
- {
- /* Can't detach from the table until here
- because ospf6_route_next () will use
- the 'route->table' pointer for logging */
- route->table = NULL;
- ospf6_route_delete (route);
- }
- }
- /* Route compare function. If ra is more preferred, it returns
- less than 0. If rb is more preferred returns greater than 0.
- Otherwise (neither one is preferred), returns 0 */
- static int
- ospf6_route_cmp (struct ospf6_route *ra, struct ospf6_route *rb)
- {
- assert (ospf6_route_is_same (ra, rb));
- assert (OSPF6_PATH_TYPE_NONE < ra->path.type &&
- ra->path.type < OSPF6_PATH_TYPE_MAX);
- assert (OSPF6_PATH_TYPE_NONE < rb->path.type &&
- rb->path.type < OSPF6_PATH_TYPE_MAX);
- if (ra->type != rb->type)
- return (ra->type - rb->type);
- if (ra->path.area_id != rb->path.area_id)
- return (ntohl (ra->path.area_id) - ntohl (rb->path.area_id));
- if (ra->path.type != rb->path.type)
- return (ra->path.type - rb->path.type);
- if (ra->path.type == OSPF6_PATH_TYPE_EXTERNAL2)
- {
- if (ra->path.cost_e2 != rb->path.cost_e2)
- return (ra->path.cost_e2 - rb->path.cost_e2);
- }
- else
- {
- if (ra->path.cost != rb->path.cost)
- return (ra->path.cost - rb->path.cost);
- }
- return 0;
- }
- struct ospf6_route *
- ospf6_route_lookup (struct prefix *prefix,
- struct ospf6_route_table *table)
- {
- struct route_node *node;
- struct ospf6_route *route;
- node = route_node_lookup (table->table, prefix);
- if (node == NULL)
- return NULL;
- route = (struct ospf6_route *) node->info;
- return route;
- }
- struct ospf6_route *
- ospf6_route_lookup_identical (struct ospf6_route *route,
- struct ospf6_route_table *table)
- {
- struct ospf6_route *target;
- for (target = ospf6_route_lookup (&route->prefix, table);
- target; target = target->next)
- {
- if (ospf6_route_is_identical (target, route))
- return target;
- }
- return NULL;
- }
- struct ospf6_route *
- ospf6_route_lookup_bestmatch (struct prefix *prefix,
- struct ospf6_route_table *table)
- {
- struct route_node *node;
- struct ospf6_route *route;
- node = route_node_match (table->table, prefix);
- if (node == NULL)
- return NULL;
- route_unlock_node (node);
- route = (struct ospf6_route *) node->info;
- return route;
- }
- #ifndef NDEBUG
- static void
- route_table_assert (struct ospf6_route_table *table)
- {
- struct ospf6_route *prev, *r, *next;
- char buf[64];
- unsigned int link_error = 0, num = 0;
-
- r = ospf6_route_head (table);
- prev = NULL;
- while (r)
- {
- if (r->prev != prev)
- link_error++;
-
- next = ospf6_route_next (r);
-
- if (r->next != next)
- link_error++;
-
- prev = r;
- r = next;
- }
-
- for (r = ospf6_route_head (table); r; r = ospf6_route_next (r))
- num++;
-
- if (link_error == 0 && num == table->count)
- return;
- zlog_err ("PANIC !!");
- zlog_err ("Something has gone wrong with ospf6_route_table[%p]", table);
- zlog_debug ("table count = %d, real number = %d", table->count, num);
- zlog_debug ("DUMP START");
- for (r = ospf6_route_head (table); r; r = ospf6_route_next (r))
- {
- prefix2str (&r->prefix, buf, sizeof (buf));
- zlog_info ("%p<-[%p]->%p : %s", r->prev, r, r->next, buf);
- }
- zlog_debug ("DUMP END");
- assert (link_error == 0 && num == table->count);
- }
- #define ospf6_route_table_assert(t) (route_table_assert (t))
- #else
- #define ospf6_route_table_assert(t) ((void) 0)
- #endif /*NDEBUG*/
- struct ospf6_route *
- ospf6_route_add (struct ospf6_route *route,
- struct ospf6_route_table *table)
- {
- struct route_node *node, *nextnode, *prevnode;
- struct ospf6_route *current = NULL;
- struct ospf6_route *prev = NULL, *old = NULL, *next = NULL;
- char buf[64];
- struct timeval now;
- assert (route->rnode == NULL);
- assert (route->lock == 0);
- assert (route->next == NULL);
- assert (route->prev == NULL);
- if (route->type == OSPF6_DEST_TYPE_LINKSTATE)
- ospf6_linkstate_prefix2str (&route->prefix, buf, sizeof (buf));
- else
- prefix2str (&route->prefix, buf, sizeof (buf));
- if (IS_OSPF6_DEBUG_ROUTE (MEMORY))
- zlog_debug ("%s %p: route add %p: %s", ospf6_route_table_name (table),
- table, route, buf);
- else if (IS_OSPF6_DEBUG_ROUTE (TABLE))
- zlog_debug ("%s: route add: %s", ospf6_route_table_name (table), buf);
- gettimeofday (&now, NULL);
- node = route_node_get (table->table, &route->prefix);
- route->rnode = node;
- /* find place to insert */
- for (current = node->info; current; current = current->next)
- {
- if (! ospf6_route_is_same (current, route))
- next = current;
- else if (current->type != route->type)
- prev = current;
- else if (ospf6_route_is_same_origin (current, route))
- old = current;
- else if (ospf6_route_cmp (current, route) > 0)
- next = current;
- else
- prev = current;
- if (old || next)
- break;
- }
- if (old)
- {
- /* if route does not actually change, return unchanged */
- if (ospf6_route_is_identical (old, route))
- {
- if (IS_OSPF6_DEBUG_ROUTE (MEMORY))
- zlog_debug ("%s %p: route add %p: needless update of %p",
- ospf6_route_table_name (table), table, route, old);
- else if (IS_OSPF6_DEBUG_ROUTE (TABLE))
- zlog_debug ("%s: route add: needless update",
- ospf6_route_table_name (table));
- ospf6_route_delete (route);
- SET_FLAG (old->flag, OSPF6_ROUTE_ADD);
- ospf6_route_table_assert (table);
- return old;
- }
- if (IS_OSPF6_DEBUG_ROUTE (MEMORY))
- zlog_debug ("%s %p: route add %p: update of %p",
- ospf6_route_table_name (table), table, route, old);
- else if (IS_OSPF6_DEBUG_ROUTE (TABLE))
- zlog_debug ("%s: route add: update",
- ospf6_route_table_name (table));
- /* replace old one if exists */
- if (node->info == old)
- {
- node->info = route;
- SET_FLAG (route->flag, OSPF6_ROUTE_BEST);
- }
- if (old->prev)
- old->prev->next = route;
- route->prev = old->prev;
- if (old->next)
- old->next->prev = route;
- route->next = old->next;
- route->installed = old->installed;
- route->changed = now;
- assert (route->table == NULL);
- route->table = table;
- ospf6_route_unlock (old); /* will be deleted later */
- ospf6_route_lock (route);
- SET_FLAG (route->flag, OSPF6_ROUTE_CHANGE);
- ospf6_route_table_assert (table);
- if (table->hook_add)
- (*table->hook_add) (route);
- return route;
- }
- /* insert if previous or next node found */
- if (prev || next)
- {
- if (IS_OSPF6_DEBUG_ROUTE (MEMORY))
- zlog_debug ("%s %p: route add %p: another path: prev %p, next %p",
- ospf6_route_table_name (table), table, route, prev, next);
- else if (IS_OSPF6_DEBUG_ROUTE (TABLE))
- zlog_debug ("%s: route add: another path found",
- ospf6_route_table_name (table));
- if (prev == NULL)
- prev = next->prev;
- if (next == NULL)
- next = prev->next;
- if (prev)
- prev->next = route;
- route->prev = prev;
- if (next)
- next->prev = route;
- route->next = next;
- if (node->info == next)
- {
- assert (next->rnode == node);
- node->info = route;
- UNSET_FLAG (next->flag, OSPF6_ROUTE_BEST);
- SET_FLAG (route->flag, OSPF6_ROUTE_BEST);
- if (IS_OSPF6_DEBUG_ROUTE (MEMORY))
- zlog_info ("%s %p: route add %p: replacing previous best: %p",
- ospf6_route_table_name (table), table, route, next);
- }
- route->installed = now;
- route->changed = now;
- assert (route->table == NULL);
- route->table = table;
- ospf6_route_lock (route);
- table->count++;
- ospf6_route_table_assert (table);
- SET_FLAG (route->flag, OSPF6_ROUTE_ADD);
- if (table->hook_add)
- (*table->hook_add) (route);
- return route;
- }
- /* Else, this is the brand new route regarding to the prefix */
- if (IS_OSPF6_DEBUG_ROUTE (MEMORY))
- zlog_debug ("%s %p: route add %p: brand new route",
- ospf6_route_table_name (table), table, route);
- else if (IS_OSPF6_DEBUG_ROUTE (TABLE))
- zlog_debug ("%s: route add: brand new route",
- ospf6_route_table_name (table));
- assert (node->info == NULL);
- node->info = route;
- SET_FLAG (route->flag, OSPF6_ROUTE_BEST);
- ospf6_route_lock (route);
- route->installed = now;
- route->changed = now;
- assert (route->table == NULL);
- route->table = table;
- /* lookup real existing next route */
- nextnode = node;
- route_lock_node (nextnode);
- do {
- nextnode = route_next (nextnode);
- } while (nextnode && nextnode->info == NULL);
- /* set next link */
- if (nextnode == NULL)
- route->next = NULL;
- else
- {
- route_unlock_node (nextnode);
- next = nextnode->info;
- route->next = next;
- next->prev = route;
- }
- /* lookup real existing prev route */
- prevnode = node;
- route_lock_node (prevnode);
- do {
- prevnode = route_prev (prevnode);
- } while (prevnode && prevnode->info == NULL);
- /* set prev link */
- if (prevnode == NULL)
- route->prev = NULL;
- else
- {
- route_unlock_node (prevnode);
- prev = prevnode->info;
- while (prev->next && ospf6_route_is_same (prev, prev->next))
- prev = prev->next;
- route->prev = prev;
- prev->next = route;
- }
- table->count++;
- ospf6_route_table_assert (table);
- SET_FLAG (route->flag, OSPF6_ROUTE_ADD);
- if (table->hook_add)
- (*table->hook_add) (route);
- return route;
- }
- void
- ospf6_route_remove (struct ospf6_route *route,
- struct ospf6_route_table *table)
- {
- struct route_node *node;
- struct ospf6_route *current;
- char buf[64];
- if (route->type == OSPF6_DEST_TYPE_LINKSTATE)
- ospf6_linkstate_prefix2str (&route->prefix, buf, sizeof (buf));
- else
- prefix2str (&route->prefix, buf, sizeof (buf));
- if (IS_OSPF6_DEBUG_ROUTE (MEMORY))
- zlog_debug ("%s %p: route remove %p: %s",
- ospf6_route_table_name (table), table, route, buf);
- else if (IS_OSPF6_DEBUG_ROUTE (TABLE))
- zlog_debug ("%s: route remove: %s", ospf6_route_table_name (table), buf);
- node = route_node_lookup (table->table, &route->prefix);
- assert (node);
- /* find the route to remove, making sure that the route pointer
- is from the route table. */
- current = node->info;
- while (current && ospf6_route_is_same (current, route))
- {
- if (current == route)
- break;
- current = current->next;
- }
- assert (current == route);
- /* adjust doubly linked list */
- if (route->prev)
- route->prev->next = route->next;
- if (route->next)
- route->next->prev = route->prev;
- if (node->info == route)
- {
- if (route->next && ospf6_route_is_same (route->next, route))
- {
- node->info = route->next;
- SET_FLAG (route->next->flag, OSPF6_ROUTE_BEST);
- }
- else
- node->info = NULL; /* should unlock route_node here ? */
- }
- table->count--;
- ospf6_route_table_assert (table);
- SET_FLAG (route->flag, OSPF6_ROUTE_WAS_REMOVED);
- if (table->hook_remove)
- (*table->hook_remove) (route);
- ospf6_route_unlock (route);
- }
- struct ospf6_route *
- ospf6_route_head (struct ospf6_route_table *table)
- {
- struct route_node *node;
- struct ospf6_route *route;
- node = route_top (table->table);
- if (node == NULL)
- return NULL;
- /* skip to the real existing entry */
- while (node && node->info == NULL)
- node = route_next (node);
- if (node == NULL)
- return NULL;
- route_unlock_node (node);
- assert (node->info);
- route = (struct ospf6_route *) node->info;
- assert (route->prev == NULL);
- assert (route->table == table);
- ospf6_route_lock (route);
- if (IS_OSPF6_DEBUG_ROUTE (MEMORY))
- zlog_info ("%s %p: route head: %p<-[%p]->%p",
- ospf6_route_table_name (table), table,
- route->prev, route, route->next);
- return route;
- }
- struct ospf6_route *
- ospf6_route_next (struct ospf6_route *route)
- {
- struct ospf6_route *next = route->next;
- if (IS_OSPF6_DEBUG_ROUTE (MEMORY))
- zlog_info ("%s %p: route next: %p<-[%p]->%p",
- ospf6_route_table_name (route->table), route->table,
- route->prev, route, route->next);
- ospf6_route_unlock (route);
- if (next)
- ospf6_route_lock (next);
- return next;
- }
- struct ospf6_route *
- ospf6_route_best_next (struct ospf6_route *route)
- {
- struct route_node *rnode;
- struct ospf6_route *next;
- rnode = route->rnode;
- route_lock_node (rnode);
- rnode = route_next (rnode);
- while (rnode && rnode->info == NULL)
- rnode = route_next (rnode);
- if (rnode == NULL)
- return NULL;
- route_unlock_node (rnode);
- assert (rnode->info);
- next = (struct ospf6_route *) rnode->info;
- ospf6_route_unlock (route);
- ospf6_route_lock (next);
- return next;
- }
- /* Macro version of check_bit (). */
- #define CHECK_BIT(X,P) ((((u_char *)(X))[(P) / 8]) >> (7 - ((P) % 8)) & 1)
- struct ospf6_route *
- ospf6_route_match_head (struct prefix *prefix,
- struct ospf6_route_table *table)
- {
- struct route_node *node;
- struct ospf6_route *route;
- /* Walk down tree. */
- node = table->table->top;
- while (node && node->p.prefixlen < prefix->prefixlen &&
- prefix_match (&node->p, prefix))
- node = node->link[CHECK_BIT(&prefix->u.prefix, node->p.prefixlen)];
- if (node)
- route_lock_node (node);
- while (node && node->info == NULL)
- node = route_next (node);
- if (node == NULL)
- return NULL;
- route_unlock_node (node);
- if (! prefix_match (prefix, &node->p))
- return NULL;
- route = node->info;
- ospf6_route_lock (route);
- return route;
- }
- struct ospf6_route *
- ospf6_route_match_next (struct prefix *prefix,
- struct ospf6_route *route)
- {
- struct ospf6_route *next;
- next = ospf6_route_next (route);
- if (next && ! prefix_match (prefix, &next->prefix))
- {
- ospf6_route_unlock (next);
- next = NULL;
- }
- return next;
- }
- void
- ospf6_route_remove_all (struct ospf6_route_table *table)
- {
- struct ospf6_route *route;
- for (route = ospf6_route_head (table); route;
- route = ospf6_route_next (route))
- ospf6_route_remove (route, table);
- }
- struct ospf6_route_table *
- ospf6_route_table_create (int s, int t)
- {
- struct ospf6_route_table *new;
- new = XCALLOC (MTYPE_OSPF6_ROUTE, sizeof (struct ospf6_route_table));
- new->table = route_table_init ();
- new->scope_type = s;
- new->table_type = t;
- return new;
- }
- void
- ospf6_route_table_delete (struct ospf6_route_table *table)
- {
- ospf6_route_remove_all (table);
- route_table_finish (table->table);
- XFREE (MTYPE_OSPF6_ROUTE, table);
- }
- /* VTY commands */
- void
- ospf6_route_show (struct vty *vty, struct ospf6_route *route)
- {
- int i;
- char destination[64], nexthop[64];
- char duration[16], ifname[IFNAMSIZ];
- struct timeval now, res;
- gettimeofday (&now, (struct timezone *) NULL);
- timersub (&now, &route->changed, &res);
- timerstring (&res, duration, sizeof (duration));
- /* destination */
- if (route->type == OSPF6_DEST_TYPE_LINKSTATE)
- ospf6_linkstate_prefix2str (&route->prefix, destination,
- sizeof (destination));
- else if (route->type == OSPF6_DEST_TYPE_ROUTER)
- inet_ntop (route->prefix.family, &route->prefix.u.prefix,
- destination, sizeof (destination));
- else
- prefix2str (&route->prefix, destination, sizeof (destination));
- /* nexthop */
- inet_ntop (AF_INET6, &route->nexthop[0].address, nexthop,
- sizeof (nexthop));
- if (! if_indextoname (route->nexthop[0].ifindex, ifname))
- snprintf (ifname, sizeof (ifname), "%d", route->nexthop[0].ifindex);
- vty_out (vty, "%c%1s %2s %-30s %-25s %6.*s %s%s",
- (ospf6_route_is_best (route) ? '*' : ' '),
- OSPF6_DEST_TYPE_SUBSTR (route->type),
- OSPF6_PATH_TYPE_SUBSTR (route->path.type),
- destination, nexthop, IFNAMSIZ, ifname, duration, VNL);
- for (i = 1; ospf6_nexthop_is_set (&route->nexthop[i]) &&
- i < OSPF6_MULTI_PATH_LIMIT; i++)
- {
- /* nexthop */
- inet_ntop (AF_INET6, &route->nexthop[i].address, nexthop,
- sizeof (nexthop));
- if (! if_indextoname (route->nexthop[i].ifindex, ifname))
- snprintf (ifname, sizeof (ifname), "%d", route->nexthop[i].ifindex);
- vty_out (vty, "%c%1s %2s %-30s %-25s %6.*s %s%s",
- ' ', "", "", "", nexthop, IFNAMSIZ, ifname, "", VNL);
- }
- }
- void
- ospf6_route_show_detail (struct vty *vty, struct ospf6_route *route)
- {
- char destination[64], nexthop[64], ifname[IFNAMSIZ];
- char area_id[16], id[16], adv_router[16], capa[16], options[16];
- struct timeval now, res;
- char duration[16];
- int i;
- gettimeofday (&now, (struct timezone *) NULL);
- /* destination */
- if (route->type == OSPF6_DEST_TYPE_LINKSTATE)
- ospf6_linkstate_prefix2str (&route->prefix, destination,
- sizeof (destination));
- else if (route->type == OSPF6_DEST_TYPE_ROUTER)
- inet_ntop (route->prefix.family, &route->prefix.u.prefix,
- destination, sizeof (destination));
- else
- prefix2str (&route->prefix, destination, sizeof (destination));
- vty_out (vty, "Destination: %s%s", destination, VNL);
- /* destination type */
- vty_out (vty, "Destination type: %s%s",
- OSPF6_DEST_TYPE_NAME (route->type),
- VNL);
- /* Time */
- timersub (&now, &route->installed, &res);
- timerstring (&res, duration, sizeof (duration));
- vty_out (vty, "Installed Time: %s ago%s", duration, VNL);
- timersub (&now, &route->changed, &res);
- timerstring (&res, duration, sizeof (duration));
- vty_out (vty, " Changed Time: %s ago%s", duration, VNL);
- /* Debugging info */
- vty_out (vty, "Lock: %d Flags: %s%s%s%s%s", route->lock,
- (CHECK_FLAG (route->flag, OSPF6_ROUTE_BEST) ? "B" : "-"),
- (CHECK_FLAG (route->flag, OSPF6_ROUTE_ADD) ? "A" : "-"),
- (CHECK_FLAG (route->flag, OSPF6_ROUTE_REMOVE) ? "R" : "-"),
- (CHECK_FLAG (route->flag, OSPF6_ROUTE_CHANGE) ? "C" : "-"),
- VNL);
- vty_out (vty, "Memory: prev: %p this: %p next: %p%s",
- route->prev, route, route->next, VNL);
- /* Path section */
- /* Area-ID */
- inet_ntop (AF_INET, &route->path.area_id, area_id, sizeof (area_id));
- vty_out (vty, "Associated Area: %s%s", area_id, VNL);
- /* Path type */
- vty_out (vty, "Path Type: %s%s",
- OSPF6_PATH_TYPE_NAME (route->path.type), VNL);
- /* LS Origin */
- inet_ntop (AF_INET, &route->path.origin.id, id, sizeof (id));
- inet_ntop (AF_INET, &route->path.origin.adv_router, adv_router,
- sizeof (adv_router));
- vty_out (vty, "LS Origin: %s Id: %s Adv: %s%s",
- ospf6_lstype_name (route->path.origin.type),
- id, adv_router, VNL);
- /* Options */
- ospf6_options_printbuf (route->path.options, options, sizeof (options));
- vty_out (vty, "Options: %s%s", options, VNL);
- /* Router Bits */
- ospf6_capability_printbuf (route->path.router_bits, capa, sizeof (capa));
- vty_out (vty, "Router Bits: %s%s", capa, VNL);
- /* Prefix Options */
- vty_out (vty, "Prefix Options: xxx%s", VNL);
- /* Metrics */
- vty_out (vty, "Metric Type: %d%s", route->path.metric_type,
- VNL);
- vty_out (vty, "Metric: %d (%d)%s",
- route->path.cost, route->path.cost_e2, VNL);
- /* Nexthops */
- vty_out (vty, "Nexthop:%s", VNL);
- for (i = 0; ospf6_nexthop_is_set (&route->nexthop[i]) &&
- i < OSPF6_MULTI_PATH_LIMIT; i++)
- {
- /* nexthop */
- inet_ntop (AF_INET6, &route->nexthop[i].address, nexthop,
- sizeof (nexthop));
- if (! if_indextoname (route->nexthop[i].ifindex, ifname))
- snprintf (ifname, sizeof (ifname), "%d", route->nexthop[i].ifindex);
- vty_out (vty, " %s %.*s%s", nexthop, IFNAMSIZ, ifname, VNL);
- }
- vty_out (vty, "%s", VNL);
- }
- static void
- ospf6_route_show_table_summary (struct vty *vty,
- struct ospf6_route_table *table)
- {
- struct ospf6_route *route, *prev = NULL;
- int i, pathtype[OSPF6_PATH_TYPE_MAX];
- unsigned int number = 0;
- int nhinval = 0, ecmp = 0;
- int alternative = 0, destination = 0;
- for (i = 0; i < OSPF6_PATH_TYPE_MAX; i++)
- pathtype[i] = 0;
- for (route = ospf6_route_head (table); route;
- route = ospf6_route_next (route))
- {
- if (prev == NULL || ! ospf6_route_is_same (prev, route))
- destination++;
- else
- alternative++;
- if (! ospf6_nexthop_is_set (&route->nexthop[0]))
- nhinval++;
- else if (ospf6_nexthop_is_set (&route->nexthop[1]))
- ecmp++;
- pathtype[route->path.type]++;
- number++;
- prev = route;
- }
- assert (number == table->count);
- vty_out (vty, "Number of OSPFv3 routes: %d%s", number, VNL);
- vty_out (vty, "Number of Destination: %d%s", destination, VNL);
- vty_out (vty, "Number of Alternative routes: %d%s", alternative, VNL);
- vty_out (vty, "Number of Equal Cost Multi Path: %d%s", ecmp, VNL);
- for (i = OSPF6_PATH_TYPE_INTRA; i <= OSPF6_PATH_TYPE_EXTERNAL2; i++)
- {
- vty_out (vty, "Number of %s routes: %d%s",
- OSPF6_PATH_TYPE_NAME (i), pathtype[i], VNL);
- }
- }
- static void
- ospf6_route_show_table_prefix (struct vty *vty,
- struct prefix *prefix,
- struct ospf6_route_table *table)
- {
- struct ospf6_route *route;
- route = ospf6_route_lookup (prefix, table);
- if (route == NULL)
- return;
- ospf6_route_lock (route);
- while (route && ospf6_route_is_prefix (prefix, route))
- {
- /* Specifying a prefix will always display details */
- ospf6_route_show_detail (vty, route);
- route = ospf6_route_next (route);
- }
- if (route)
- ospf6_route_unlock (route);
- }
- static void
- ospf6_route_show_table_address (struct vty *vty,
- struct prefix *prefix,
- struct ospf6_route_table *table)
- {
- struct ospf6_route *route;
- route = ospf6_route_lookup_bestmatch (prefix, table);
- if (route == NULL)
- return;
- prefix = &route->prefix;
- ospf6_route_lock (route);
- while (route && ospf6_route_is_prefix (prefix, route))
- {
- /* Specifying a prefix will always display details */
- ospf6_route_show_detail (vty, route);
- route = ospf6_route_next (route);
- }
- if (route)
- ospf6_route_unlock (route);
- }
- static void
- ospf6_route_show_table_match (struct vty *vty, int detail,
- struct prefix *prefix,
- struct ospf6_route_table *table)
- {
- struct ospf6_route *route;
- assert (prefix->family);
- route = ospf6_route_match_head (prefix, table);
- while (route)
- {
- if (detail)
- ospf6_route_show_detail (vty, route);
- else
- ospf6_route_show (vty, route);
- route = ospf6_route_match_next (prefix, route);
- }
- }
- static void
- ospf6_route_show_table_type (struct vty *vty, int detail, u_char type,
- struct ospf6_route_table *table)
- {
- struct ospf6_route *route;
- route = ospf6_route_head (table);
- while (route)
- {
- if (route->path.type == type)
- {
- if (detail)
- ospf6_route_show_detail (vty, route);
- else
- ospf6_route_show (vty, route);
- }
- route = ospf6_route_next (route);
- }
- }
- static void
- ospf6_route_show_table (struct vty *vty, int detail,
- struct ospf6_route_table *table)
- {
- struct ospf6_route *route;
- route = ospf6_route_head (table);
- while (route)
- {
- if (detail)
- ospf6_route_show_detail (vty, route);
- else
- ospf6_route_show (vty, route);
- route = ospf6_route_next (route);
- }
- }
- int
- ospf6_route_table_show (struct vty *vty, int argc, const char *argv[],
- struct ospf6_route_table *table)
- {
- int summary = 0;
- int match = 0;
- int detail = 0;
- int slash = 0;
- int isprefix = 0;
- int i, ret;
- struct prefix prefix;
- u_char type = 0;
- memset (&prefix, 0, sizeof (struct prefix));
- for (i = 0; i < argc; i++)
- {
- if (! strcmp (argv[i], "summary"))
- {
- summary++;
- continue;
- }
- if (! strcmp (argv[i], "intra-area"))
- {
- type = OSPF6_PATH_TYPE_INTRA;
- continue;
- }
- if (! strcmp (argv[i], "inter-area"))
- {
- type = OSPF6_PATH_TYPE_INTER;
- continue;
- }
- if (! strcmp (argv[i], "external-1"))
- {
- type = OSPF6_PATH_TYPE_EXTERNAL1;
- continue;
- }
- if (! strcmp (argv[i], "external-2"))
- {
- type = OSPF6_PATH_TYPE_EXTERNAL2;
- continue;
- }
- if (! strcmp (argv[i], "detail"))
- {
- detail++;
- continue;
- }
- if (! strcmp (argv[i], "match"))
- {
- match++;
- continue;
- }
- ret = str2prefix (argv[i], &prefix);
- if (ret == 1 && prefix.family == AF_INET6)
- {
- isprefix++;
- if (strchr (argv[i], '/'))
- slash++;
- continue;
- }
- vty_out (vty, "Malformed argument: %s%s", argv[i], VNL);
- return CMD_SUCCESS;
- }
- /* Give summary of this route table */
- if (summary)
- {
- ospf6_route_show_table_summary (vty, table);
- return CMD_SUCCESS;
- }
- /* Give exact prefix-match route */
- if (isprefix && ! match)
- {
- /* If exact address, give best matching route */
- if (! slash)
- ospf6_route_show_table_address (vty, &prefix, table);
- else
- ospf6_route_show_table_prefix (vty, &prefix, table);
- return CMD_SUCCESS;
- }
- if (match)
- ospf6_route_show_table_match (vty, detail, &prefix, table);
- else if (type)
- ospf6_route_show_table_type (vty, detail, type, table);
- else
- ospf6_route_show_table (vty, detail, table);
- return CMD_SUCCESS;
- }
- static void
- ospf6_linkstate_show_header (struct vty *vty)
- {
- vty_out (vty, "%-7s %-15s %-15s %-8s %-14s %s%s",
- "Type", "Router-ID", "Net-ID", "Rtr-Bits", "Options", "Cost", VNL);
- }
- static void
- ospf6_linkstate_show (struct vty *vty, struct ospf6_route *route)
- {
- u_int32_t router, id;
- char routername[16], idname[16], rbits[16], options[16];
- router = ospf6_linkstate_prefix_adv_router (&route->prefix);
- inet_ntop (AF_INET, &router, routername, sizeof (routername));
- id = ospf6_linkstate_prefix_id (&route->prefix);
- inet_ntop (AF_INET, &id, idname, sizeof (idname));
- ospf6_capability_printbuf (route->path.router_bits, rbits, sizeof (rbits));
- ospf6_options_printbuf (route->path.options, options, sizeof (options));
- if (ntohl (id))
- vty_out (vty, "%-7s %-15s %-15s %-8s %-14s %lu%s",
- "Network", routername, idname, rbits, options,
- (unsigned long) route->path.cost, VNL);
- else
- vty_out (vty, "%-7s %-15s %-15s %-8s %-14s %lu%s",
- "Router", routername, idname, rbits, options,
- (unsigned long) route->path.cost, VNL);
- }
- static void
- ospf6_linkstate_show_table_exact (struct vty *vty,
- struct prefix *prefix,
- struct ospf6_route_table *table)
- {
- struct ospf6_route *route;
- route = ospf6_route_lookup (prefix, table);
- if (route == NULL)
- return;
- ospf6_route_lock (route);
- while (route && ospf6_route_is_prefix (prefix, route))
- {
- /* Specifying a prefix will always display details */
- ospf6_route_show_detail (vty, route);
- route = ospf6_route_next (route);
- }
- if (route)
- ospf6_route_unlock (route);
- }
- static void
- ospf6_linkstate_show_table (struct vty *vty, int detail,
- struct ospf6_route_table *table)
- {
- struct ospf6_route *route;
- if (! detail)
- ospf6_linkstate_show_header (vty);
- route = ospf6_route_head (table);
- while (route)
- {
- if (detail)
- ospf6_route_show_detail (vty, route);
- else
- ospf6_linkstate_show (vty, route);
- route = ospf6_route_next (route);
- }
- }
- int
- ospf6_linkstate_table_show (struct vty *vty, int argc, const char *argv[],
- struct ospf6_route_table *table)
- {
- int detail = 0;
- int is_id = 0;
- int is_router = 0;
- int i, ret;
- struct prefix router, id, prefix;
- memset (&router, 0, sizeof (struct prefix));
- memset (&id, 0, sizeof (struct prefix));
- memset (&prefix, 0, sizeof (struct prefix));
- for (i = 0; i < argc; i++)
- {
- if (! strcmp (argv[i], "detail"))
- {
- detail++;
- continue;
- }
- if (! is_router)
- {
- ret = str2prefix (argv[i], &router);
- if (ret == 1 && router.family == AF_INET)
- {
- is_router++;
- continue;
- }
- vty_out (vty, "Malformed argument: %s%s", argv[i], VNL);
- return CMD_SUCCESS;
- }
- if (! is_id)
- {
- ret = str2prefix (argv[i], &id);
- if (ret == 1 && id.family == AF_INET)
- {
- is_id++;
- continue;
- }
- vty_out (vty, "Malformed argument: %s%s", argv[i], VNL);
- return CMD_SUCCESS;
- }
- vty_out (vty, "Malformed argument: %s%s", argv[i], VNL);
- return CMD_SUCCESS;
- }
- if (is_router)
- ospf6_linkstate_prefix (router.u.prefix4.s_addr,
- id.u.prefix4.s_addr, &prefix);
- if (prefix.family)
- ospf6_linkstate_show_table_exact (vty, &prefix, table);
- else
- ospf6_linkstate_show_table (vty, detail, table);
- return CMD_SUCCESS;
- }
- void
- ospf6_brouter_show_header (struct vty *vty)
- {
- vty_out (vty, "%-15s %-8s %-14s %-10s %-15s%s",
- "Router-ID", "Rtr-Bits", "Options", "Path-Type", "Area", VNL);
- }
- void
- ospf6_brouter_show (struct vty *vty, struct ospf6_route *route)
- {
- u_int32_t adv_router;
- char adv[16], rbits[16], options[16], area[16];
- adv_router = ospf6_linkstate_prefix_adv_router (&route->prefix);
- inet_ntop (AF_INET, &adv_router, adv, sizeof (adv));
- ospf6_capability_printbuf (route->path.router_bits, rbits, sizeof (rbits));
- ospf6_options_printbuf (route->path.options, options, sizeof (options));
- inet_ntop (AF_INET, &route->path.area_id, area, sizeof (area));
- /* vty_out (vty, "%-15s %-8s %-14s %-10s %-15s%s",
- "Router-ID", "Rtr-Bits", "Options", "Path-Type", "Area", VNL); */
- vty_out (vty, "%-15s %-8s %-14s %-10s %-15s%s",
- adv, rbits, options, OSPF6_PATH_TYPE_NAME (route->path.type),
- area, VNL);
- }
- DEFUN (debug_ospf6_route,
- debug_ospf6_route_cmd,
- "debug ospf6 route (table|intra-area|inter-area)",
- DEBUG_STR
- OSPF6_STR
- "Debug route table calculation\n"
- "Debug detail\n"
- "Debug intra-area route calculation\n"
- "Debug inter-area route calculation\n"
- )
- {
- unsigned char level = 0;
- if (! strncmp (argv[0], "table", 5))
- level = OSPF6_DEBUG_ROUTE_TABLE;
- else if (! strncmp (argv[0], "intra", 5))
- level = OSPF6_DEBUG_ROUTE_INTRA;
- else if (! strncmp (argv[0], "inter", 5))
- level = OSPF6_DEBUG_ROUTE_INTER;
- OSPF6_DEBUG_ROUTE_ON (level);
- return CMD_SUCCESS;
- }
- DEFUN (no_debug_ospf6_route,
- no_debug_ospf6_route_cmd,
- "no debug ospf6 route (table|intra-area|inter-area)",
- NO_STR
- DEBUG_STR
- OSPF6_STR
- "Debug route table calculation\n"
- "Debug intra-area route calculation\n")
- {
- unsigned char level = 0;
- if (! strncmp (argv[0], "table", 5))
- level = OSPF6_DEBUG_ROUTE_TABLE;
- else if (! strncmp (argv[0], "intra", 5))
- level = OSPF6_DEBUG_ROUTE_INTRA;
- else if (! strncmp (argv[0], "inter", 5))
- level = OSPF6_DEBUG_ROUTE_INTER;
- OSPF6_DEBUG_ROUTE_OFF (level);
- return CMD_SUCCESS;
- }
- int
- config_write_ospf6_debug_route (struct vty *vty)
- {
- if (IS_OSPF6_DEBUG_ROUTE (TABLE))
- vty_out (vty, "debug ospf6 route table%s", VNL);
- if (IS_OSPF6_DEBUG_ROUTE (INTRA))
- vty_out (vty, "debug ospf6 route intra-area%s", VNL);
- if (IS_OSPF6_DEBUG_ROUTE (INTER))
- vty_out (vty, "debug ospf6 route inter-area%s", VNL);
- return 0;
- }
- void
- install_element_ospf6_debug_route (void)
- {
- install_element (ENABLE_NODE, &debug_ospf6_route_cmd);
- install_element (ENABLE_NODE, &no_debug_ospf6_route_cmd);
- install_element (CONFIG_NODE, &debug_ospf6_route_cmd);
- install_element (CONFIG_NODE, &no_debug_ospf6_route_cmd);
- }
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