summaryrefslogtreecommitdiffstats
path: root/ospf6d/ospf6_route.c
diff options
context:
space:
mode:
Diffstat (limited to 'ospf6d/ospf6_route.c')
-rw-r--r--ospf6d/ospf6_route.c1130
1 files changed, 1130 insertions, 0 deletions
diff --git a/ospf6d/ospf6_route.c b/ospf6d/ospf6_route.c
new file mode 100644
index 00000000..c35efa6e
--- /dev/null
+++ b/ospf6d/ospf6_route.c
@@ -0,0 +1,1130 @@
+/*
+ * Copyright (C) 1999 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 "ospf6d.h"
+
+char *
+dtype_name[OSPF6_DEST_TYPE_MAX] =
+{
+ "Unknown", "Router", "Network", "Discard"
+};
+#define DTYPE_NAME(x) \
+ (0 < (x) && (x) < sizeof (dtype_name) ? \
+ dtype_name[(x)] : dtype_name[0])
+
+char *
+dtype_abname[OSPF6_DEST_TYPE_MAX] =
+{
+ "?", "R", "N", "D"
+};
+#define DTYPE_ABNAME(x) \
+ (0 < (x) && (x) < sizeof (dtype_abname) ? \
+ dtype_abname[(x)] : dtype_abname[0])
+
+char *
+ptype_name[OSPF6_PATH_TYPE_MAX] =
+{
+ "Unknown", "Intra", "Inter", "External-1", "External-2",
+ "System", "Kernel", "Connect", "Static", "RIP", "RIPng",
+ "OSPF", "OSPF6", "BGP"
+};
+#define PTYPE_NAME(x) \
+ (0 < (x) && (x) < sizeof (ptype_name) ? \
+ ptype_name[(x)] : ptype_name[0])
+
+char *
+ptype_abname[OSPF6_PATH_TYPE_MAX] =
+{
+ "??", "Ia", "Ie", "E1", "E2",
+ "-X", "-K", "-C", "-S", "-R", "-R",
+ "-O", "-O", "-B"
+};
+#define PTYPE_ABNAME(x) \
+ (0 < (x) && (x) < sizeof (ptype_abname) ? \
+ ptype_abname[(x)] : ptype_abname[0])
+
+
+
+int
+ospf6_path_cmp (void *arg1, void *arg2)
+{
+ struct ospf6_path_node *pn1 = arg1;
+ struct ospf6_path_node *pn2 = arg2;
+ struct ospf6_path *p1 = &pn1->path;
+ struct ospf6_path *p2 = &pn2->path;
+
+ if (p1->type < p2->type)
+ return -1;
+ else if (p1->type > p2->type)
+ return 1;
+
+ if (p1->type == OSPF6_PATH_TYPE_EXTERNAL2)
+ {
+ if (p1->cost_e2 < p2->cost_e2)
+ return -1;
+ else if (p1->cost_e2 > p2->cost_e2)
+ return 1;
+ }
+
+ if (p1->cost < p2->cost)
+ return -1;
+ else if (p1->cost > p2->cost)
+ return 1;
+
+ /* if from the same source, recognize as identical
+ (and treat this as update) */
+ if (! memcmp (&p1->origin, &p2->origin, sizeof (struct ls_origin)) &&
+ p1->area_id == p2->area_id)
+ return 0;
+
+ /* else, always prefer left */
+ return -1;
+}
+
+int
+ospf6_nexthop_cmp (void *arg1, void *arg2)
+{
+ int i, ret = 0;
+ struct ospf6_nexthop_node *nn1 = arg1;
+ struct ospf6_nexthop_node *nn2 = arg2;
+ struct ospf6_nexthop *n1 = &nn1->nexthop;
+ struct ospf6_nexthop *n2 = &nn2->nexthop;
+
+ if (memcmp (n1, n2, sizeof (struct ospf6_nexthop)) == 0)
+ return 0;
+
+ for (i = 0; i < sizeof (struct in6_addr); i++)
+ {
+ if (nn1->nexthop.address.s6_addr[i] != nn2->nexthop.address.s6_addr[i])
+ {
+ ret = nn1->nexthop.address.s6_addr[i] -
+ nn2->nexthop.address.s6_addr[i];
+ break;
+ }
+ }
+
+ if (ret == 0)
+ ret = -1;
+
+ return ret;
+}
+
+static void
+ospf6_route_request (struct ospf6_route_req *request,
+ struct ospf6_route_node *rn,
+ struct ospf6_path_node *pn,
+ struct ospf6_nexthop_node *nn)
+{
+ assert (request);
+ assert (rn && pn && nn);
+
+ request->route_node = rn->route_node;
+
+ linklist_head (rn->path_list, &request->path_lnode);
+ while (request->path_lnode.data != pn)
+ {
+ //assert (! linklist_end (&request->path_lnode));
+ if (linklist_end (&request->path_lnode))
+ {
+ struct linklist_node node;
+
+ zlog_info ("rn: %p, pn: %p", rn, pn);
+ zlog_info ("origin: %hx %x %x bits: %x opt: %x%x%x popt: %x area: %x type: %d cost %d %d %d",
+ pn->path.origin.type, pn->path.origin.id, pn->path.origin.adv_router, (int)pn->path.router_bits, (int)pn->path.capability[0],
+ (int)pn->path.capability[1], (int)pn->path.capability[2],
+ (int)pn->path.prefix_options, pn->path.area_id,
+ pn->path.type, pn->path.metric_type, pn->path.cost, pn->path.cost_e2);
+
+ for (linklist_head (rn->path_list, &node); ! linklist_end (&node);
+ linklist_next (&node))
+ {
+ struct ospf6_path_node *pn2 = node.data;
+
+ zlog_info (" %p: path data with pn(%p): %s", pn2, pn,
+ (memcmp (&pn->path, &pn2->path,
+ sizeof (struct ospf6_path)) ?
+ "different" : "same"));
+
+ zlog_info (" origin: %hx %x %x bits: %x opt: %x%x%x popt: %x area: %x type: %d cost %d %d %d",
+ pn2->path.origin.type, pn2->path.origin.id, pn2->path.origin.adv_router, (int)pn2->path.router_bits, (int)pn2->path.capability[0],
+ (int)pn2->path.capability[1], (int)pn2->path.capability[2],
+ (int)pn2->path.prefix_options, pn2->path.area_id,
+ pn2->path.type, pn2->path.metric_type, pn2->path.cost, pn2->path.cost_e2);
+
+ if (! memcmp (&pn->path, &pn2->path, sizeof (struct ospf6_path)))
+ {
+ pn = pn2;
+ request->nexthop_lnode.data = pn2;
+ }
+ }
+ break;
+ }
+ linklist_next (&request->path_lnode);
+ }
+ assert (request->path_lnode.data == pn);
+
+ linklist_head (pn->nexthop_list, &request->nexthop_lnode);
+ while (request->nexthop_lnode.data != nn)
+ {
+ assert (! linklist_end (&request->nexthop_lnode));
+ linklist_next (&request->nexthop_lnode);
+ }
+ assert (request->nexthop_lnode.data == nn);
+
+ request->table = rn->table;
+ request->count = rn->count;
+ request->route_id = rn->route_id;
+ memcpy (&request->route, &rn->route, sizeof (struct ospf6_route));
+ memcpy (&request->path, &pn->path, sizeof (struct ospf6_path));
+ memcpy (&request->nexthop, &nn->nexthop, sizeof (struct ospf6_nexthop));
+}
+
+int
+ospf6_route_count (struct ospf6_route_req *request)
+{
+ return request->count;
+}
+
+int
+ospf6_route_lookup (struct ospf6_route_req *request,
+ struct prefix *prefix,
+ struct ospf6_route_table *table)
+{
+ struct route_node *node;
+ struct ospf6_route_node *rn = NULL;
+ struct ospf6_path_node *pn = NULL;
+ struct ospf6_nexthop_node *nn = NULL;
+ struct linklist_node lnode;
+
+ if (request)
+ memset ((void *) request, 0, sizeof (struct ospf6_route_req));
+
+ node = route_node_lookup (table->table, prefix);
+ if (! node)
+ return 0;
+
+ rn = (struct ospf6_route_node *) node->info;
+ if (! rn)
+ return 0;
+
+ if (request)
+ {
+ linklist_head (rn->path_list, &lnode);
+ pn = lnode.data;
+ linklist_head (pn->nexthop_list, &lnode);
+ nn = lnode.data;
+
+ ospf6_route_request (request, rn, pn, nn);
+ }
+
+ return 1;
+}
+
+void
+ospf6_route_head (struct ospf6_route_req *request,
+ struct ospf6_route_table *table)
+{
+ struct route_node *node;
+ struct ospf6_route_node *rn = NULL;
+ struct ospf6_path_node *pn = NULL;
+ struct ospf6_nexthop_node *nn = NULL;
+ struct linklist_node lnode;
+
+ if (request)
+ memset (request, 0, sizeof (struct ospf6_route_req));
+
+ node = route_top (table->table);
+ if (! node)
+ return;
+
+ while (node && node->info == NULL)
+ node = route_next (node);
+ if (! node)
+ return;
+
+ rn = (struct ospf6_route_node *) node->info;
+ linklist_head (rn->path_list, &lnode);
+ pn = lnode.data;
+ linklist_head (pn->nexthop_list, &lnode);
+ nn = lnode.data;
+
+ ospf6_route_request (request, rn, pn, nn);
+}
+
+int
+ospf6_route_end (struct ospf6_route_req *request)
+{
+ if (request->route_node == NULL &&
+ linklist_end (&request->path_lnode) &&
+ linklist_end (&request->nexthop_lnode) &&
+ request->nexthop.ifindex == 0 &&
+ IN6_IS_ADDR_UNSPECIFIED (&request->nexthop.address))
+ return 1;
+ return 0;
+}
+
+void
+ospf6_route_next (struct ospf6_route_req *request)
+{
+ struct ospf6_route_node *route_node = NULL;
+ struct ospf6_path_node *path_node = NULL;
+ struct ospf6_nexthop_node *nexthop_node = NULL;
+
+ linklist_next (&request->nexthop_lnode);
+ if (linklist_end (&request->nexthop_lnode))
+ {
+ linklist_next (&request->path_lnode);
+ if (linklist_end (&request->path_lnode))
+ {
+ request->route_node = route_next (request->route_node);
+ while (request->route_node && request->route_node->info == NULL)
+ request->route_node = route_next (request->route_node);
+ if (request->route_node)
+ {
+ route_node = request->route_node->info;
+ if (route_node)
+ linklist_head (route_node->path_list, &request->path_lnode);
+ }
+ }
+
+ path_node = request->path_lnode.data;
+ if (path_node)
+ linklist_head (path_node->nexthop_list, &request->nexthop_lnode);
+ }
+
+ nexthop_node = request->nexthop_lnode.data;
+
+ if (nexthop_node == NULL)
+ {
+ assert (path_node == NULL);
+ assert (route_node == NULL);
+
+ memset (&request->route, 0, sizeof (struct ospf6_route));
+ memset (&request->path, 0, sizeof (struct ospf6_path));
+ memset (&request->nexthop, 0, sizeof (struct ospf6_nexthop));
+ }
+ else
+ {
+ path_node = request->path_lnode.data;
+ route_node = request->route_node->info;
+
+ assert (path_node != NULL);
+ assert (route_node != NULL);
+
+ memcpy (&request->route, &route_node->route,
+ sizeof (struct ospf6_route));
+ memcpy (&request->path, &path_node->path,
+ sizeof (struct ospf6_path));
+ memcpy (&request->nexthop, &nexthop_node->nexthop,
+ sizeof (struct ospf6_nexthop));
+ }
+}
+
+#define ADD 0
+#define CHANGE 1
+#define REMOVE 2
+
+void
+ospf6_route_hook_call (int type,
+ struct ospf6_route_req *request,
+ struct ospf6_route_table *table)
+{
+ struct linklist_node node;
+ void (*func) (struct ospf6_route_req *);
+
+ for (linklist_head (table->hook_list[type], &node);
+ ! linklist_end (&node);
+ linklist_next (&node))
+ {
+ func = node.data;
+ (*func) (request);
+ }
+}
+
+void
+ospf6_route_hook_register (void (*add) (struct ospf6_route_req *),
+ void (*change) (struct ospf6_route_req *),
+ void (*remove) (struct ospf6_route_req *),
+ struct ospf6_route_table *table)
+{
+ linklist_add (add, table->hook_list[ADD]);
+ linklist_add (change, table->hook_list[CHANGE]);
+ linklist_add (remove, table->hook_list[REMOVE]);
+}
+
+void
+ospf6_route_hook_unregister (void (*add) (struct ospf6_route_req *),
+ void (*change) (struct ospf6_route_req *),
+ void (*remove) (struct ospf6_route_req *),
+ struct ospf6_route_table *table)
+{
+ linklist_remove (add, table->hook_list[ADD]);
+ linklist_remove (change, table->hook_list[CHANGE]);
+ linklist_remove (remove, table->hook_list[REMOVE]);
+}
+
+
+int
+prefix_ls2str (struct prefix *p, char *str, int size)
+{
+ char id[BUFSIZ], adv_router[BUFSIZ];
+ struct prefix_ls *pl = (struct prefix_ls *) p;
+
+ inet_ntop (AF_INET, &pl->id, id, BUFSIZ);
+ inet_ntop (AF_INET, &pl->adv_router, adv_router, BUFSIZ);
+ snprintf (str, size, "%s-%s", adv_router, id);
+ return 0;
+}
+
+void
+ospf6_route_log_request (char *what, char *where,
+ struct ospf6_route_req *request)
+{
+ char prefix[64];
+ char area_id[16];
+ char type[16], id[16], adv[16];
+ char address[64], ifname[IFNAMSIZ];
+
+ if (request->route.prefix.family != AF_INET &&
+ request->route.prefix.family != AF_INET6)
+ prefix_ls2str (&request->route.prefix, prefix, sizeof (prefix));
+ else
+ prefix2str (&request->route.prefix, prefix, sizeof (prefix));
+
+ inet_ntop (AF_INET, &request->path.area_id, area_id, sizeof (area_id));
+
+ ospf6_lsa_type_string (request->path.origin.type, type, sizeof (type));
+ inet_ntop (AF_INET, &request->path.origin.id, id, sizeof (id));
+ inet_ntop (AF_INET, &request->path.origin.adv_router, adv, sizeof (adv));
+
+ inet_ntop (AF_INET6, &request->nexthop.address, address, sizeof (address));
+
+ zlog_info ("ROUTE: %s %s %s %s %s",
+ what, DTYPE_ABNAME (request->route.type), prefix,
+ ((strcmp ("Add", what) == 0) ? "to" : "from"), where);
+ zlog_info ("ROUTE: Area: %s type: %s cost: %lu (E2: %lu)",
+ area_id, PTYPE_NAME (request->path.type),
+ (u_long) request->path.cost, (u_long) request->path.cost_e2);
+ zlog_info ("ROUTE: Origin: Type: %s", type);
+ zlog_info ("ROUTE: Origin: Id: %s Adv: %s", id, adv);
+ zlog_info ("ROUTE: Nexthop: %s", address);
+ zlog_info ("ROUTE: Nexthop: Ifindex: %u (%s)",
+ request->nexthop.ifindex,
+ if_indextoname (request->nexthop.ifindex, ifname));
+}
+
+struct ospf6_path_node *
+ospf6_route_find_path_node (struct ospf6_route_req *request,
+ struct ospf6_route_node *rn)
+{
+ struct linklist_node node;
+
+ for (linklist_head (rn->path_list, &node); ! linklist_end (&node);
+ linklist_next (&node))
+ {
+ struct ospf6_path_node *path_node = node.data;
+
+ if (path_node->path.area_id == request->path.area_id &&
+ path_node->path.origin.type == request->path.origin.type &&
+ path_node->path.origin.id == request->path.origin.id &&
+ path_node->path.origin.adv_router == request->path.origin.adv_router)
+ return path_node;
+ }
+
+#if 0
+ zlog_info ("req path : area: %#x origin: type: %d, id: %d, adv_router: %#x",
+ request->path.area_id, request->path.origin.type,
+ request->path.origin.id, request->path.origin.adv_router);
+ for (linklist_head (rn->path_list, &node); ! linklist_end (&node);
+ linklist_next (&node))
+ {
+ struct ospf6_path_node *path_node = node.data;
+ zlog_info (" path : area: %#x origin: type: %d, id: %d, adv_router: %#x",
+ path_node->path.area_id, path_node->path.origin.type,
+ path_node->path.origin.id, path_node->path.origin.adv_router);
+ }
+#endif
+
+ return NULL;
+}
+
+struct ospf6_nexthop_node *
+ospf6_route_find_nexthop_node (struct ospf6_route_req *request,
+ struct ospf6_path_node *pn)
+{
+ struct linklist_node node;
+ for (linklist_head (pn->nexthop_list, &node); ! linklist_end (&node);
+ linklist_next (&node))
+ {
+ struct ospf6_nexthop_node *nexthop_node = node.data;
+
+ if (! memcmp (&nexthop_node->nexthop, &request->nexthop,
+ sizeof (struct ospf6_nexthop)))
+ return nexthop_node;
+ }
+ return NULL;
+}
+
+void
+ospf6_route_add (struct ospf6_route_req *request,
+ struct ospf6_route_table *table)
+{
+ struct ospf6_route_node *rn;
+ struct ospf6_path_node *pn;
+ struct ospf6_nexthop_node *nn;
+ struct route_node *route_node;
+
+ struct ospf6_route_req route;
+
+ int route_change = 0;
+ int path_change = 0;
+ int nexthop_change = 0;
+
+ /* find the requested route */
+ route_node = route_node_get (table->table, &request->route.prefix);
+ rn = (struct ospf6_route_node *) route_node->info;
+
+ if (rn)
+ {
+ if (memcmp (&rn->route, &request->route, sizeof (struct ospf6_route)))
+ {
+ memcpy (&rn->route, &request->route, sizeof (struct ospf6_route));
+ route_change++;
+ }
+ }
+ else
+ {
+ rn = XCALLOC (MTYPE_OSPF6_ROUTE, sizeof (struct ospf6_route_node));
+ rn->table = table;
+ rn->route_node = route_node;
+ rn->route_id = table->route_id++;
+ rn->path_list = linklist_create ();
+ rn->path_list->cmp = ospf6_path_cmp;
+ memcpy (&rn->route, &request->route, sizeof (struct ospf6_route));
+ route_node->info = rn;
+ }
+
+ /* find the same path */
+ pn = ospf6_route_find_path_node (request, rn);
+
+ if (pn)
+ {
+ if (memcmp (&pn->path, &request->path, sizeof (struct ospf6_path)))
+ {
+ memcpy (&pn->path, &request->path, sizeof (struct ospf6_path));
+ path_change++;
+ }
+ }
+ else
+ {
+ pn = XCALLOC (MTYPE_OSPF6_ROUTE, sizeof (struct ospf6_path_node));
+ pn->route_node = rn;
+ pn->nexthop_list = linklist_create ();
+ pn->nexthop_list->cmp = ospf6_nexthop_cmp;
+ memcpy (&pn->path, &request->path, sizeof (struct ospf6_path));
+ linklist_add (pn, rn->path_list);
+ }
+
+ /* find the same nexthop */
+ nn = ospf6_route_find_nexthop_node (request, pn);
+
+ if (nn)
+ {
+ if (memcmp (&nn->nexthop, &request->nexthop,
+ sizeof (struct ospf6_nexthop)))
+ {
+ memcpy (&nn->nexthop, &request->nexthop,
+ sizeof (struct ospf6_nexthop));
+ nexthop_change++;
+ gettimeofday (&nn->installed, (struct timezone *) NULL);
+ }
+ }
+ else
+ {
+ nn = XCALLOC (MTYPE_OSPF6_ROUTE, sizeof (struct ospf6_nexthop_node));
+ nn->path_node = pn;
+ memcpy (&nn->nexthop, &request->nexthop, sizeof (struct ospf6_nexthop));
+ linklist_add (nn, pn->nexthop_list);
+ rn->count++;
+ gettimeofday (&nn->installed, (struct timezone *) NULL);
+ }
+
+ SET_FLAG (nn->flag, OSPF6_ROUTE_FLAG_ADD);
+ if (route_change)
+ SET_FLAG (nn->flag, OSPF6_ROUTE_FLAG_ROUTE_CHANGE);
+ if (path_change)
+ SET_FLAG (nn->flag, OSPF6_ROUTE_FLAG_PATH_CHANGE);
+ if (nexthop_change)
+ SET_FLAG (nn->flag, OSPF6_ROUTE_FLAG_CHANGE);
+
+ if (table->freeze)
+ return;
+
+ if (IS_OSPF6_DUMP_ROUTE)
+ {
+ ospf6_route_log_request ("Add", table->name, request);
+
+ if (CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_ROUTE_CHANGE))
+ zlog_info ("ROUTE: route attribute change");
+ if (CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_PATH_CHANGE))
+ zlog_info ("ROUTE: path attribute change");
+ if (CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_CHANGE))
+ zlog_info ("ROUTE: nexthop attribute change");
+ }
+
+ if (CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_ROUTE_CHANGE) ||
+ CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_PATH_CHANGE))
+ SET_FLAG (nn->flag, OSPF6_ROUTE_FLAG_CHANGE);
+
+ /* Call hooks */
+ ospf6_route_request (&route, rn, pn, nn);
+ if (CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_ADD))
+ ospf6_route_hook_call (ADD, &route, table);
+ else if (CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_CHANGE))
+ ospf6_route_hook_call (CHANGE, &route, table);
+
+ if (table->hook_add &&
+ CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_ADD))
+ (*table->hook_add) (&route);
+ else if (table->hook_change &&
+ CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_CHANGE))
+ (*table->hook_change) (&route);
+
+ /* clear flag */
+ nn->flag = 0;
+}
+
+void
+ospf6_route_remove (struct ospf6_route_req *request,
+ struct ospf6_route_table *table)
+{
+ struct ospf6_route_node *rn;
+ struct ospf6_path_node *pn;
+ struct ospf6_nexthop_node *nn;
+ struct route_node *route_node;
+ struct ospf6_route_req route;
+
+ /* find the requested route */
+ route_node = route_node_get (table->table, &request->route.prefix);
+ rn = (struct ospf6_route_node *) route_node->info;
+
+ if (! rn)
+ {
+ if (IS_OSPF6_DUMP_ROUTE)
+ {
+ ospf6_route_log_request ("Remove", table->name, request);
+ zlog_info ("ROUTE: Can't remove: No such route");
+ }
+ return;
+ }
+
+ pn = ospf6_route_find_path_node (request, rn);
+ if (! pn)
+ {
+ if (IS_OSPF6_DUMP_ROUTE)
+ {
+ ospf6_route_log_request ("Remove", table->name, request);
+ zlog_info ("ROUTE: Can't remove: No such path");
+ }
+ return;
+ }
+
+ if (pn->path.area_id != request->path.area_id ||
+ pn->path.origin.type != request->path.origin.type ||
+ pn->path.origin.id != request->path.origin.id ||
+ pn->path.origin.adv_router != request->path.origin.adv_router)
+ {
+ if (IS_OSPF6_DUMP_ROUTE)
+ {
+ ospf6_route_log_request ("Remove", table->name, request);
+ zlog_info ("ROUTE: Can't remove: Path differ");
+ {
+ char *s, *e, *c;
+ char line[512], *p;
+
+ p = line;
+ s = (char *) &pn->path;
+ e = s + sizeof (struct ospf6_path);
+ for (c = s; c < e; c++)
+ {
+ if ((c - s) % 4 == 0)
+ snprintf (p++, line + sizeof (line) - p, " ");
+ snprintf (p, line + sizeof (line) - p, "%02x", *c);
+ p += 2;
+ }
+ zlog_info ("ROUTE: path: %s", line);
+
+ p = line;
+ s = (char *) &request->path;
+ e = s + sizeof (struct ospf6_path);
+ for (c = s; c < e; c++)
+ {
+ if ((c - s) % 4 == 0)
+ snprintf (p++, line + sizeof (line) - p, " ");
+ snprintf (p, line + sizeof (line) - p, "%02x", *c);
+ p += 2;
+ }
+ zlog_info ("ROUTE: req : %s", line);
+
+ }
+ }
+ return;
+ }
+
+ nn = ospf6_route_find_nexthop_node (request, pn);
+ if (! nn)
+ {
+ if (IS_OSPF6_DUMP_ROUTE)
+ {
+ ospf6_route_log_request ("Remove", table->name, request);
+ zlog_info ("ROUTE: Can't remove: No such nexthop");
+ }
+ return;
+ }
+
+ if (memcmp (&nn->nexthop, &request->nexthop, sizeof (struct ospf6_nexthop)))
+ {
+ if (IS_OSPF6_DUMP_ROUTE)
+ {
+ ospf6_route_log_request ("Remove", table->name, request);
+ zlog_info ("ROUTE: Can't remove: Nexthop differ");
+ }
+ return;
+ }
+
+ SET_FLAG (nn->flag, OSPF6_ROUTE_FLAG_REMOVE);
+
+ if (table->freeze)
+ return;
+
+ if (IS_OSPF6_DUMP_ROUTE)
+ ospf6_route_log_request ("Remove", table->name, request);
+
+ ospf6_route_request (&route, rn, pn, nn);
+ ospf6_route_hook_call (REMOVE, &route, table);
+ if (table->hook_remove)
+ (*table->hook_remove) (&route);
+
+ /* clear flag */
+ nn->flag = 0;
+
+ /* remove nexthop */
+ linklist_remove (nn, pn->nexthop_list);
+ rn->count--;
+ XFREE (MTYPE_OSPF6_ROUTE, nn);
+
+ /* remove path if there's no nexthop for the path */
+ if (pn->nexthop_list->count != 0)
+ return;
+ linklist_remove (pn, rn->path_list);
+ linklist_delete (pn->nexthop_list);
+ XFREE (MTYPE_OSPF6_ROUTE, pn);
+
+ /* remove route if there's no path for the route */
+ if (rn->path_list->count != 0)
+ return;
+ route_node->info = NULL;
+ linklist_delete (rn->path_list);
+ XFREE (MTYPE_OSPF6_ROUTE, rn);
+}
+
+void
+ospf6_route_remove_all (struct ospf6_route_table *table)
+{
+ struct ospf6_route_req request;
+
+ for (ospf6_route_head (&request, table); ! ospf6_route_end (&request);
+ ospf6_route_next (&request))
+ ospf6_route_remove (&request, table);
+}
+
+
+struct ospf6_route_table *
+ospf6_route_table_create (char *name)
+{
+ int i;
+ struct ospf6_route_table *new;
+
+ new = XCALLOC (MTYPE_OSPF6_ROUTE, sizeof (struct ospf6_route_table));
+ snprintf (new->name, sizeof (new->name), "%s", name);
+
+ new->table = route_table_init ();
+ for (i = 0; i < 3; i++)
+ new->hook_list[i] = linklist_create ();
+
+ return new;
+}
+
+void
+ospf6_route_table_delete (struct ospf6_route_table *table)
+{
+ int i;
+
+ ospf6_route_remove_all (table);
+ route_table_finish (table->table);
+ for (i = 0; i < 3; i++)
+ linklist_delete (table->hook_list[i]);
+ XFREE (MTYPE_OSPF6_ROUTE, table);
+}
+
+void
+ospf6_route_table_freeze (struct ospf6_route_table *route_table)
+{
+ if (IS_OSPF6_DUMP_ROUTE)
+ zlog_info ("ROUTE: Table freeze: %s", route_table->name);
+ assert (route_table->freeze == 0);
+ route_table->freeze = 1;
+}
+
+void
+ospf6_route_table_thaw (struct ospf6_route_table *route_table)
+{
+ struct route_node *node;
+ struct linklist_node pnode;
+ struct linklist_node nnode;
+
+ struct ospf6_route_node *rn;
+ struct ospf6_path_node *pn;
+ struct ospf6_nexthop_node *nn;
+
+ struct ospf6_route_req request;
+
+ if (IS_OSPF6_DUMP_ROUTE)
+ zlog_info ("ROUTE: Table thaw: %s", route_table->name);
+
+ assert (route_table->freeze == 1);
+ route_table->freeze = 0;
+
+ for (node = route_top (route_table->table); node;
+ node = route_next (node))
+ {
+ rn = node->info;
+ if (! rn)
+ continue;
+
+ for (linklist_head (rn->path_list, &pnode);
+ ! linklist_end (&pnode);
+ linklist_next (&pnode))
+ {
+ pn = pnode.data;
+
+ for (linklist_head (pn->nexthop_list, &nnode);
+ ! linklist_end (&nnode);
+ linklist_next (&nnode))
+ {
+ nn = nnode.data;
+
+ /* if the add and remove flag set without change flag,
+ do nothing with this route */
+ if (! CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_CHANGE) &&
+ CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_ADD) &&
+ CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_REMOVE))
+ {
+ nn->flag = 0;
+ continue;
+ }
+
+ memset (&request, 0, sizeof (request));
+ memcpy (&request.route, &rn->route, sizeof (rn->route));
+ memcpy (&request.path, &pn->path, sizeof (pn->path));
+ memcpy (&request.nexthop, &nn->nexthop, sizeof (nn->nexthop));
+
+ if (CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_ADD) ||
+ CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_CHANGE))
+ ospf6_route_add (&request, route_table);
+ else if (CHECK_FLAG (nn->flag, OSPF6_ROUTE_FLAG_REMOVE))
+ ospf6_route_remove (&request, route_table);
+ }
+ }
+ }
+}
+
+
+/* VTY commands */
+
+void
+ospf6_route_show (struct vty *vty, struct ospf6_route_node *rn)
+{
+ struct linklist_node pnode;
+ struct linklist_node nnode;
+ struct ospf6_path_node *pn;
+ struct ospf6_nexthop_node *nn;
+
+ struct timeval now, res;
+ char duration[16];
+
+ u_int pc = 0;
+ u_int nc = 0;
+#define HEAD (pc == 0 && nc == 0)
+
+ char prefix[64], nexthop[64], ifname[IFNAMSIZ];
+
+ gettimeofday (&now, (struct timezone *) NULL);
+
+ /* destination */
+ if (rn->route.prefix.family == AF_INET ||
+ rn->route.prefix.family == AF_INET6)
+ prefix2str (&rn->route.prefix, prefix, sizeof (prefix));
+ else
+ prefix_ls2str (&rn->route.prefix, prefix, sizeof (prefix));
+
+ for (linklist_head (rn->path_list, &pnode); ! linklist_end (&pnode);
+ linklist_next (&pnode))
+ {
+ pn = pnode.data;
+
+ for (linklist_head (pn->nexthop_list, &nnode); ! linklist_end (&nnode);
+ linklist_next (&nnode))
+ {
+ nn = nnode.data;
+
+ inet_ntop (AF_INET6, &nn->nexthop.address, nexthop,
+ sizeof (nexthop));
+ if (! if_indextoname (nn->nexthop.ifindex, ifname))
+ snprintf (ifname, sizeof (ifname), "%d", nn->nexthop.ifindex);
+
+ ospf6_timeval_sub (&now, &nn->installed, &res);
+ ospf6_timeval_string_summary (&res, duration, sizeof (duration));
+
+ vty_out (vty, "%c%1s %2s %-30s %-25s %6s %s%s",
+ (HEAD ? '*' : ' '),
+ DTYPE_ABNAME (rn->route.type),
+ PTYPE_ABNAME (pn->path.type),
+ prefix, nexthop, ifname, duration, VTY_NEWLINE);
+
+ nc++;
+ }
+ pc++;
+ }
+}
+
+void
+ospf6_route_show_detail (struct vty *vty, struct ospf6_route_node *rn)
+{
+ struct linklist_node pnode;
+ struct linklist_node nnode;
+ struct ospf6_path_node *pn;
+ struct ospf6_nexthop_node *nn;
+
+ u_int pc = 0;
+ u_int nc = 0;
+
+ char prefix[64], nexthop[64], ifname[IFNAMSIZ];
+ char area_id[16], type[16], id[16], adv[16];
+ char capa[64];
+
+ /* destination */
+ if (rn->route.prefix.family == AF_INET ||
+ rn->route.prefix.family == AF_INET6)
+ prefix2str (&rn->route.prefix, prefix, sizeof (prefix));
+ else
+ prefix_ls2str (&rn->route.prefix, prefix, sizeof (prefix));
+
+ vty_out (vty, "%s%s%s", VTY_NEWLINE, prefix, VTY_NEWLINE);
+ vty_out (vty, " Destination Type: %s%s",
+ DTYPE_NAME (rn->route.type), VTY_NEWLINE);
+
+ for (linklist_head (rn->path_list, &pnode); ! linklist_end (&pnode);
+ linklist_next (&pnode))
+ {
+ pn = pnode.data;
+
+ inet_ntop (AF_INET, &pn->path.area_id, area_id, sizeof (area_id));
+ ospf6_lsa_type_string (pn->path.origin.type, type, sizeof (type));
+ inet_ntop (AF_INET, &pn->path.origin.id, id, sizeof (id));
+ inet_ntop (AF_INET, &pn->path.origin.adv_router, adv, sizeof (adv));
+ ospf6_options_string (pn->path.capability, capa, sizeof (capa));
+
+ vty_out (vty, " Path:%s", VTY_NEWLINE);
+ vty_out (vty, " Associated Area: %s%s", area_id, VTY_NEWLINE);
+ vty_out (vty, " LS Origin: %s ID: %s Adv: %s%s",
+ type, id, adv, VTY_NEWLINE);
+ vty_out (vty, " Path Type: %s%s",
+ PTYPE_NAME (pn->path.type), VTY_NEWLINE);
+ vty_out (vty, " Metric Type: %d%s",
+ pn->path.metric_type, VTY_NEWLINE);
+ vty_out (vty, " Cost: Type-1: %lu Type-2: %lu%s",
+ (u_long) pn->path.cost, (u_long) pn->path.cost_e2,
+ VTY_NEWLINE);
+ vty_out (vty, " Router Bits: %s|%s|%s|%s%s",
+ (CHECK_FLAG (pn->path.router_bits, OSPF6_ROUTER_LSA_BIT_W) ?
+ "W" : "-"),
+ (CHECK_FLAG (pn->path.router_bits, OSPF6_ROUTER_LSA_BIT_V) ?
+ "V" : "-"),
+ (CHECK_FLAG (pn->path.router_bits, OSPF6_ROUTER_LSA_BIT_E) ?
+ "E" : "-"),
+ (CHECK_FLAG (pn->path.router_bits, OSPF6_ROUTER_LSA_BIT_B) ?
+ "B" : "-"), VTY_NEWLINE);
+ vty_out (vty, " Optional Capabilities: %s%s", capa, VTY_NEWLINE);
+ vty_out (vty, " Prefix Options: %s%s", "xxx", VTY_NEWLINE);
+ vty_out (vty, " Next Hops:%s", VTY_NEWLINE);
+
+ for (linklist_head (pn->nexthop_list, &nnode); ! linklist_end (&nnode);
+ linklist_next (&nnode))
+ {
+ nn = nnode.data;
+
+ inet_ntop (AF_INET6, &nn->nexthop.address, nexthop,
+ sizeof (nexthop));
+ if (! if_indextoname (nn->nexthop.ifindex, ifname))
+ snprintf (ifname, sizeof (ifname), "%d", nn->nexthop.ifindex);
+
+ vty_out (vty, " %c%s%%%s%s",
+ (HEAD ? '*' : ' '), nexthop, ifname, VTY_NEWLINE);
+
+ nc++;
+ }
+ pc++;
+ }
+ vty_out (vty, "%s", VTY_NEWLINE);
+}
+
+int
+ospf6_route_table_show (struct vty *vty, int argc, char **argv,
+ struct ospf6_route_table *table)
+{
+ int i, ret;
+ unsigned long ret_ul;
+ char *endptr;
+ struct prefix prefix;
+ int detail = 0;
+ int arg_ipv6 = 0;
+ int arg_ipv4 = 0;
+ int arg_digit = 0;
+ struct prefix_ipv6 *p6 = (struct prefix_ipv6 *) &prefix;
+ struct prefix_ls *pl = (struct prefix_ls *) &prefix;
+ struct route_node *node;
+
+ u_int route_count = 0;
+ u_int path_count = 0;
+ u_int route_redundant = 0;
+
+ memset (&prefix, 0, sizeof (struct prefix));
+
+ for (i = 0; i < argc; i++)
+ {
+ if (! strcmp (argv[i], "detail"))
+ {
+ detail++;
+ break;
+ }
+
+ if (! arg_ipv6 && ! arg_ipv4 && ! arg_digit)
+ {
+
+ if ((ret = inet_pton (AF_INET6, argv[i], &p6->prefix)) == 1)
+ {
+ p6->family = AF_INET6;
+ p6->prefixlen = 128;
+ arg_ipv6++;
+ continue;
+ }
+ else if ((ret = inet_pton (AF_INET, argv[i], &pl->adv_router)) == 1)
+ {
+ pl->family = AF_UNSPEC;
+ pl->prefixlen = 64; /* xxx */
+ arg_ipv4++;
+ continue;
+ }
+ else
+ {
+ ret_ul = strtoul (argv[i], &endptr, 10);
+ if (*endptr == '\0')
+ {
+ pl->adv_router.s_addr = htonl (ret_ul);
+ pl->family = AF_UNSPEC;
+ pl->prefixlen = 64; /* xxx */
+ arg_digit++;
+ continue;
+ }
+ else
+ {
+ vty_out (vty, "Malformed argument: %s%s",
+ argv[i], VTY_NEWLINE);
+ return CMD_SUCCESS;
+ }
+ }
+ }
+
+ if (arg_ipv4 || arg_digit)
+ {
+ if ((ret = inet_pton (AF_INET, argv[i], &pl->id)) == 1)
+ {
+ arg_ipv4++;
+ }
+ else
+ {
+ ret_ul = strtoul (argv[i], &endptr, 10);
+ if (*endptr == '\0')
+ {
+ pl->id.s_addr = htonl (ret_ul);
+ arg_digit++;
+ }
+ else
+ {
+ vty_out (vty, "Malformed argument: %s%s",
+ argv[i], VTY_NEWLINE);
+ return CMD_SUCCESS;
+ }
+ }
+ }
+ }
+
+ if (arg_ipv4 || arg_ipv6 || arg_digit)
+ {
+ node = route_node_match (table->table, &prefix);
+ if (node && node->info)
+ ospf6_route_show_detail (vty, node->info);
+ return CMD_SUCCESS;
+ }
+
+ if (! detail)
+ {
+ vty_out (vty, "%s%c%1s %2s %-30s %-25s %6s%s", VTY_NEWLINE,
+ ' ', " ", " ", "Destination", "Gateway", "I/F", VTY_NEWLINE);
+ vty_out (vty, "---------------------------%s", VTY_NEWLINE);
+ }
+
+ for (node = route_top (table->table); node; node = route_next (node))
+ {
+ struct ospf6_route_node *route = node->info;
+
+ if (! route)
+ continue;
+
+ if (detail)
+ ospf6_route_show_detail (vty, route);
+ else
+ ospf6_route_show (vty, route);
+
+ route_count++;
+ path_count += route->path_list->count;
+ if (route->path_list->count > 1)
+ route_redundant++;
+ }
+
+ vty_out (vty, "===========%s", VTY_NEWLINE);
+ vty_out (vty, "Route: %d Path: %d Redundant: %d%s",
+ route_count, path_count, route_redundant, VTY_NEWLINE);
+
+ return CMD_SUCCESS;
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-13 20:12:35 +0000