Initial revision
diff --git a/isisd/modified/rib.c b/isisd/modified/rib.c
new file mode 100644
index 0000000..39a7690
--- /dev/null
+++ b/isisd/modified/rib.c
@@ -0,0 +1,3321 @@
+/* Routing Information Base.
+ * Copyright (C) 1997, 98, 99, 2001 Kunihiro Ishiguro
+ *
+ * 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 "prefix.h"
+#include "table.h"
+#include "memory.h"
+#include "vty.h"
+#include "str.h"
+#include "command.h"
+#include "linklist.h"
+#include "if.h"
+#include "log.h"
+#include "sockunion.h"
+
+#include "zebra/rib.h"
+#include "zebra/rt.h"
+#include "zebra/zserv.h"
+#include "zebra/redistribute.h"
+#include "zebra/debug.h"
+
+/* Routing information base and static table for IPv4. */
+struct route_table *rib_table_ipv4;
+struct route_table *static_table_ipv4;
+
+/* Routing information base and static table for IPv6. */
+#ifdef HAVE_IPV6
+struct route_table *rib_table_ipv6;
+struct route_table *static_table_ipv6;
+#endif /* HAVE_IPV6 */
+
+/* Default rtm_table for all clients */
+extern int rtm_table_default;
+
+/* Each route type's string and default distance value. */
+struct
+{
+ int key;
+ char c;
+ char *str;
+ int distance;
+} route_info[] =
+{
+ {ZEBRA_ROUTE_SYSTEM, 'X', "system", 0},
+ {ZEBRA_ROUTE_KERNEL, 'K', "kernel", 0},
+ {ZEBRA_ROUTE_CONNECT, 'C', "connected", 0},
+ {ZEBRA_ROUTE_STATIC, 'S', "static", 1},
+ {ZEBRA_ROUTE_RIP, 'R', "rip", 120},
+ {ZEBRA_ROUTE_RIPNG, 'R', "ripng", 120},
+ {ZEBRA_ROUTE_OSPF, 'O', "ospf", 110},
+ {ZEBRA_ROUTE_OSPF6, 'O', "ospf6", 110},
+ {ZEBRA_ROUTE_ISIS, 'I', "isis", 115},
+ {ZEBRA_ROUTE_BGP, 'B', "bgp", 20 /* IBGP is 200. */}
+};
+
+/* Add nexthop to the end of the list. */
+void
+nexthop_add (struct rib *rib, struct nexthop *nexthop)
+{
+ struct nexthop *last;
+
+ for (last = rib->nexthop; last && last->next; last = last->next)
+ ;
+ if (last)
+ last->next = nexthop;
+ else
+ rib->nexthop = nexthop;
+ nexthop->prev = last;
+
+ rib->nexthop_num++;
+}
+
+/* Delete specified nexthop from the list. */
+void
+nexthop_delete (struct rib *rib, struct nexthop *nexthop)
+{
+ if (nexthop->next)
+ nexthop->next->prev = nexthop->prev;
+ if (nexthop->prev)
+ nexthop->prev->next = nexthop->next;
+ else
+ rib->nexthop = nexthop->next;
+ rib->nexthop_num--;
+}
+
+/* Free nexthop. */
+void
+nexthop_free (struct nexthop *nexthop)
+{
+ if (nexthop->type == NEXTHOP_TYPE_IFNAME && nexthop->ifname)
+ free (nexthop->ifname);
+ XFREE (MTYPE_NEXTHOP, nexthop);
+}
+
+struct nexthop *
+nexthop_ifindex_add (struct rib *rib, unsigned int ifindex)
+{
+ struct nexthop *nexthop;
+
+ nexthop = XMALLOC (MTYPE_NEXTHOP, sizeof (struct nexthop));
+ memset (nexthop, 0, sizeof (struct nexthop));
+ nexthop->type = NEXTHOP_TYPE_IFINDEX;
+ nexthop->ifindex = ifindex;
+
+ nexthop_add (rib, nexthop);
+
+ return nexthop;
+}
+
+struct nexthop *
+nexthop_ifname_add (struct rib *rib, char *ifname)
+{
+ struct nexthop *nexthop;
+
+ nexthop = XMALLOC (MTYPE_NEXTHOP, sizeof (struct nexthop));
+ memset (nexthop, 0, sizeof (struct nexthop));
+ nexthop->type = NEXTHOP_TYPE_IFNAME;
+ nexthop->ifname = strdup (ifname);
+
+ nexthop_add (rib, nexthop);
+
+ return nexthop;
+}
+
+struct nexthop *
+nexthop_ipv4_add (struct rib *rib, struct in_addr *ipv4)
+{
+ struct nexthop *nexthop;
+
+ nexthop = XMALLOC (MTYPE_NEXTHOP, sizeof (struct nexthop));
+ memset (nexthop, 0, sizeof (struct nexthop));
+ nexthop->type = NEXTHOP_TYPE_IPV4;
+ nexthop->gate.ipv4 = *ipv4;
+
+ nexthop_add (rib, nexthop);
+
+ return nexthop;
+}
+
+struct nexthop *
+nexthop_ipv4_ifindex_add (struct rib *rib, struct in_addr *ipv4,
+ unsigned int ifindex)
+{
+ struct nexthop *nexthop;
+
+ nexthop = XMALLOC (MTYPE_NEXTHOP, sizeof (struct nexthop));
+ memset (nexthop, 0, sizeof (struct nexthop));
+ nexthop->type = NEXTHOP_TYPE_IPV4_IFINDEX;
+ nexthop->gate.ipv4 = *ipv4;
+ nexthop->ifindex = ifindex;
+
+ nexthop_add (rib, nexthop);
+
+ return nexthop;
+}
+
+#ifdef HAVE_IPV6
+struct nexthop *
+nexthop_ipv6_add (struct rib *rib, struct in6_addr *ipv6)
+{
+ struct nexthop *nexthop;
+
+ nexthop = XMALLOC (MTYPE_NEXTHOP, sizeof (struct nexthop));
+ memset (nexthop, 0, sizeof (struct nexthop));
+ nexthop->type = NEXTHOP_TYPE_IPV6;
+ nexthop->gate.ipv6 = *ipv6;
+
+ nexthop_add (rib, nexthop);
+
+ return nexthop;
+}
+
+struct nexthop *
+nexthop_ipv6_ifname_add (struct rib *rib, struct in6_addr *ipv6,
+ char *ifname)
+{
+ struct nexthop *nexthop;
+
+ nexthop = XMALLOC (MTYPE_NEXTHOP, sizeof (struct nexthop));
+ memset (nexthop, 0, sizeof (struct nexthop));
+ nexthop->type = NEXTHOP_TYPE_IPV6_IFNAME;
+ nexthop->gate.ipv6 = *ipv6;
+ nexthop->ifname = XSTRDUP (0, ifname);
+
+ nexthop_add (rib, nexthop);
+
+ return nexthop;
+}
+
+struct nexthop *
+nexthop_ipv6_ifindex_add (struct rib *rib, struct in6_addr *ipv6,
+ unsigned int ifindex)
+{
+ struct nexthop *nexthop;
+
+ nexthop = XMALLOC (MTYPE_NEXTHOP, sizeof (struct nexthop));
+ memset (nexthop, 0, sizeof (struct nexthop));
+ nexthop->type = NEXTHOP_TYPE_IPV6_IFINDEX;
+ nexthop->gate.ipv6 = *ipv6;
+ nexthop->ifindex = ifindex;
+
+ nexthop_add (rib, nexthop);
+
+ return nexthop;
+}
+#endif /* HAVE_IPV6 */
+
+/* If force flag is not set, do not modify falgs at all for uninstall
+ the route from FIB. */
+int
+nexthop_active_ipv4 (struct rib *rib, struct nexthop *nexthop, int set,
+ struct route_node *top)
+{
+ struct prefix_ipv4 p;
+ struct route_node *rn;
+ struct rib *match;
+ struct nexthop *newhop;
+
+ if (nexthop->type == NEXTHOP_TYPE_IPV4)
+ nexthop->ifindex = 0;
+
+ if (set)
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE);
+
+ /* Make lookup prefix. */
+ memset (&p, 0, sizeof (struct prefix_ipv4));
+ p.family = AF_INET;
+ p.prefixlen = IPV4_MAX_PREFIXLEN;
+ p.prefix = nexthop->gate.ipv4;
+
+ rn = route_node_match (rib_table_ipv4, (struct prefix *) &p);
+ while (rn)
+ {
+ route_unlock_node (rn);
+
+ /* If lookup self prefix return immidiately. */
+ if (rn == top)
+ return 0;
+
+ /* Pick up selected route. */
+ for (match = rn->info; match; match = match->next)
+ if (CHECK_FLAG (match->flags, ZEBRA_FLAG_SELECTED))
+ break;
+
+ /* If there is no selected route or matched route is EGP, go up
+ tree. */
+ if (! match
+ || match->type == ZEBRA_ROUTE_BGP)
+ {
+ do {
+ rn = rn->parent;
+ } while (rn && rn->info == NULL);
+ if (rn)
+ route_lock_node (rn);
+ }
+ else
+ {
+ if (match->type == ZEBRA_ROUTE_CONNECT)
+ {
+ /* Directly point connected route. */
+ newhop = match->nexthop;
+ if (newhop && nexthop->type == NEXTHOP_TYPE_IPV4)
+ nexthop->ifindex = newhop->ifindex;
+
+ return 1;
+ }
+ else if (CHECK_FLAG (rib->flags, ZEBRA_FLAG_INTERNAL))
+ {
+ for (newhop = match->nexthop; newhop; newhop = newhop->next)
+ if (CHECK_FLAG (newhop->flags, NEXTHOP_FLAG_FIB)
+ && ! CHECK_FLAG (newhop->flags, NEXTHOP_FLAG_RECURSIVE))
+ {
+ if (set)
+ {
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE);
+ nexthop->rtype = newhop->type;
+ if (newhop->type == NEXTHOP_TYPE_IPV4 ||
+ newhop->type == NEXTHOP_TYPE_IPV4_IFINDEX)
+ nexthop->rgate.ipv4 = newhop->gate.ipv4;
+ if (newhop->type == NEXTHOP_TYPE_IFINDEX
+ || newhop->type == NEXTHOP_TYPE_IFNAME
+ || newhop->type == NEXTHOP_TYPE_IPV4_IFINDEX)
+ nexthop->rifindex = newhop->ifindex;
+ }
+ return 1;
+ }
+ return 0;
+ }
+ else
+ {
+ return 0;
+ }
+ }
+ }
+ return 0;
+}
+
+#ifdef HAVE_IPV6
+/* If force flag is not set, do not modify falgs at all for uninstall
+ the route from FIB. */
+int
+nexthop_active_ipv6 (struct rib *rib, struct nexthop *nexthop, int set,
+ struct route_node *top)
+{
+ struct prefix_ipv6 p;
+ struct route_node *rn;
+ struct rib *match;
+ struct nexthop *newhop;
+
+ if (nexthop->type == NEXTHOP_TYPE_IPV6)
+ nexthop->ifindex = 0;
+
+ if (set)
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE);
+
+ /* Make lookup prefix. */
+ memset (&p, 0, sizeof (struct prefix_ipv6));
+ p.family = AF_INET6;
+ p.prefixlen = IPV6_MAX_PREFIXLEN;
+ p.prefix = nexthop->gate.ipv6;
+
+ rn = route_node_match (rib_table_ipv6, (struct prefix *) &p);
+ while (rn)
+ {
+ route_unlock_node (rn);
+
+ /* If lookup self prefix return immidiately. */
+ if (rn == top)
+ return 0;
+
+ /* Pick up selected route. */
+ for (match = rn->info; match; match = match->next)
+ if (CHECK_FLAG (match->flags, ZEBRA_FLAG_SELECTED))
+ break;
+
+ /* If there is no selected route or matched route is EGP, go up
+ tree. */
+ if (! match
+ || match->type == ZEBRA_ROUTE_BGP)
+ {
+ do {
+ rn = rn->parent;
+ } while (rn && rn->info == NULL);
+ if (rn)
+ route_lock_node (rn);
+ }
+ else
+ {
+ if (match->type == ZEBRA_ROUTE_CONNECT)
+ {
+ /* Directly point connected route. */
+ newhop = match->nexthop;
+
+ if (newhop && nexthop->type == NEXTHOP_TYPE_IPV6)
+ nexthop->ifindex = newhop->ifindex;
+
+ return 1;
+ }
+ else if (CHECK_FLAG (rib->flags, ZEBRA_FLAG_INTERNAL))
+ {
+ for (newhop = match->nexthop; newhop; newhop = newhop->next)
+ if (CHECK_FLAG (newhop->flags, NEXTHOP_FLAG_FIB)
+ && ! CHECK_FLAG (newhop->flags, NEXTHOP_FLAG_RECURSIVE))
+ {
+ if (set)
+ {
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE);
+ nexthop->rtype = newhop->type;
+ if (newhop->type == NEXTHOP_TYPE_IPV6
+ || newhop->type == NEXTHOP_TYPE_IPV6_IFINDEX
+ || newhop->type == NEXTHOP_TYPE_IPV6_IFNAME)
+ nexthop->rgate.ipv6 = newhop->gate.ipv6;
+ if (newhop->type == NEXTHOP_TYPE_IFINDEX
+ || newhop->type == NEXTHOP_TYPE_IFNAME
+ || newhop->type == NEXTHOP_TYPE_IPV6_IFINDEX
+ || newhop->type == NEXTHOP_TYPE_IPV6_IFNAME)
+ nexthop->rifindex = newhop->ifindex;
+ }
+ return 1;
+ }
+ return 0;
+ }
+ else
+ {
+ return 0;
+ }
+ }
+ }
+ return 0;
+}
+#endif /* HAVE_IPV6 */
+
+struct rib *
+rib_match_ipv4 (struct in_addr addr)
+{
+ struct prefix_ipv4 p;
+ struct route_node *rn;
+ struct rib *match;
+ struct nexthop *newhop;
+
+ memset (&p, 0, sizeof (struct prefix_ipv4));
+ p.family = AF_INET;
+ p.prefixlen = IPV4_MAX_PREFIXLEN;
+ p.prefix = addr;
+
+ rn = route_node_match (rib_table_ipv4, (struct prefix *) &p);
+
+ while (rn)
+ {
+ route_unlock_node (rn);
+
+ /* Pick up selected route. */
+ for (match = rn->info; match; match = match->next)
+ if (CHECK_FLAG (match->flags, ZEBRA_FLAG_SELECTED))
+ break;
+
+ /* If there is no selected route or matched route is EGP, go up
+ tree. */
+ if (! match
+ || match->type == ZEBRA_ROUTE_BGP)
+ {
+ do {
+ rn = rn->parent;
+ } while (rn && rn->info == NULL);
+ if (rn)
+ route_lock_node (rn);
+ }
+ else
+ {
+ if (match->type == ZEBRA_ROUTE_CONNECT)
+ /* Directly point connected route. */
+ return match;
+ else
+ {
+ for (newhop = match->nexthop; newhop; newhop = newhop->next)
+ if (CHECK_FLAG (newhop->flags, NEXTHOP_FLAG_FIB))
+ return match;
+ return NULL;
+ }
+ }
+ }
+ return NULL;
+}
+
+struct rib *
+rib_lookup_ipv4 (struct prefix_ipv4 *p)
+{
+ struct route_node *rn;
+ struct rib *match;
+ struct nexthop *nexthop;
+
+ rn = route_node_lookup (rib_table_ipv4, (struct prefix *) p);
+
+ /* No route for this prefix. */
+ if (! rn)
+ return NULL;
+
+ /* Unlock node. */
+ route_unlock_node (rn);
+
+ /* Pick up selected route. */
+ for (match = rn->info; match; match = match->next)
+ if (CHECK_FLAG (match->flags, ZEBRA_FLAG_SELECTED))
+ break;
+
+ if (! match || match->type == ZEBRA_ROUTE_BGP)
+ return NULL;
+
+ if (match->type == ZEBRA_ROUTE_CONNECT)
+ return match;
+
+ for (nexthop = match->nexthop; nexthop; nexthop = nexthop->next)
+ if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB))
+ return match;
+
+ return NULL;
+}
+
+#ifdef HAVE_IPV6
+struct rib *
+rib_match_ipv6 (struct in6_addr *addr)
+{
+ struct prefix_ipv6 p;
+ struct route_node *rn;
+ struct rib *match;
+ struct nexthop *newhop;
+
+ memset (&p, 0, sizeof (struct prefix_ipv6));
+ p.family = AF_INET6;
+ p.prefixlen = IPV6_MAX_PREFIXLEN;
+ IPV6_ADDR_COPY (&p.prefix, addr);
+
+ rn = route_node_match (rib_table_ipv6, (struct prefix *) &p);
+
+ while (rn)
+ {
+ route_unlock_node (rn);
+
+ /* Pick up selected route. */
+ for (match = rn->info; match; match = match->next)
+ if (CHECK_FLAG (match->flags, ZEBRA_FLAG_SELECTED))
+ break;
+
+ /* If there is no selected route or matched route is EGP, go up
+ tree. */
+ if (! match
+ || match->type == ZEBRA_ROUTE_BGP)
+ {
+ do {
+ rn = rn->parent;
+ } while (rn && rn->info == NULL);
+ if (rn)
+ route_lock_node (rn);
+ }
+ else
+ {
+ if (match->type == ZEBRA_ROUTE_CONNECT)
+ /* Directly point connected route. */
+ return match;
+ else
+ {
+ for (newhop = match->nexthop; newhop; newhop = newhop->next)
+ if (CHECK_FLAG (newhop->flags, NEXTHOP_FLAG_FIB))
+ return match;
+ return NULL;
+ }
+ }
+ }
+ return NULL;
+}
+#endif /* HAVE_IPV6 */
+
+int
+nexthop_active_check (struct route_node *rn, struct rib *rib,
+ struct nexthop *nexthop, int set)
+{
+ struct interface *ifp;
+
+ switch (nexthop->type)
+ {
+ case NEXTHOP_TYPE_IFINDEX:
+ ifp = if_lookup_by_index (nexthop->ifindex);
+ if (ifp && if_is_up (ifp))
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ else
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ break;
+ case NEXTHOP_TYPE_IFNAME:
+ case NEXTHOP_TYPE_IPV6_IFNAME:
+ ifp = if_lookup_by_name (nexthop->ifname);
+ if (ifp && if_is_up (ifp))
+ {
+ if (set)
+ nexthop->ifindex = ifp->ifindex;
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ }
+ else
+ {
+ if (set)
+ nexthop->ifindex = 0;
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ }
+ break;
+ case NEXTHOP_TYPE_IPV4:
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
+ if (nexthop_active_ipv4 (rib, nexthop, set, rn))
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ else
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ break;
+#ifdef HAVE_IPV6
+ case NEXTHOP_TYPE_IPV6:
+ if (nexthop_active_ipv6 (rib, nexthop, set, rn))
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ else
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ break;
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ if (IN6_IS_ADDR_LINKLOCAL (&nexthop->gate.ipv6))
+ {
+ ifp = if_lookup_by_index (nexthop->ifindex);
+ if (ifp && if_is_up (ifp))
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ else
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ }
+ else
+ {
+ if (nexthop_active_ipv6 (rib, nexthop, set, rn))
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ else
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ }
+ break;
+#endif /* HAVE_IPV6 */
+ default:
+ break;
+ }
+ return CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+}
+
+int
+nexthop_active_update (struct route_node *rn, struct rib *rib, int set)
+{
+ struct nexthop *nexthop;
+ int active;
+
+ rib->nexthop_active_num = 0;
+ UNSET_FLAG (rib->flags, ZEBRA_FLAG_CHANGED);
+
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ {
+ active = CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ rib->nexthop_active_num += nexthop_active_check (rn, rib, nexthop, set);
+ if (active != CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
+ SET_FLAG (rib->flags, ZEBRA_FLAG_CHANGED);
+ }
+ return rib->nexthop_active_num;
+}
+
+#define RIB_SYSTEM_ROUTE(R) \
+ ((R)->type == ZEBRA_ROUTE_KERNEL || (R)->type == ZEBRA_ROUTE_CONNECT)
+
+void
+newrib_free (struct rib *rib)
+{
+ struct nexthop *nexthop;
+ struct nexthop *next;
+
+ for (nexthop = rib->nexthop; nexthop; nexthop = next)
+ {
+ next = nexthop->next;
+ nexthop_free (nexthop);
+ }
+ XFREE (MTYPE_RIB, rib);
+}
+
+void
+rib_install_kernel (struct route_node *rn, struct rib *rib)
+{
+ int ret = 0;
+ struct nexthop *nexthop;
+
+ switch (PREFIX_FAMILY (&rn->p))
+ {
+ case AF_INET:
+ ret = kernel_add_ipv4 (&rn->p, rib);
+ break;
+#ifdef HAVE_IPV6
+ case AF_INET6:
+ ret = kernel_add_ipv6 (&rn->p, rib);
+ break;
+#endif /* HAVE_IPV6 */
+ }
+
+ if (ret < 0)
+ {
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
+ }
+}
+
+/* Uninstall the route from kernel. */
+int
+rib_uninstall_kernel (struct route_node *rn, struct rib *rib)
+{
+ int ret = 0;
+ struct nexthop *nexthop;
+
+ switch (PREFIX_FAMILY (&rn->p))
+ {
+ case AF_INET:
+ ret = kernel_delete_ipv4 (&rn->p, rib);
+ break;
+#ifdef HAVE_IPV6
+ case AF_INET6:
+ ret = kernel_delete_ipv6 (&rn->p, rib);
+ break;
+#endif /* HAVE_IPV6 */
+ }
+
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
+
+ return ret;
+}
+
+/* Uninstall the route from kernel. */
+void
+rib_uninstall (struct route_node *rn, struct rib *rib)
+{
+ if (CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED))
+ {
+ redistribute_delete (&rn->p, rib);
+ if (! RIB_SYSTEM_ROUTE (rib))
+ rib_uninstall_kernel (rn, rib);
+ UNSET_FLAG (rib->flags, ZEBRA_FLAG_SELECTED);
+ }
+}
+
+/* Core function for processing routing information base. */
+void
+rib_process (struct route_node *rn, struct rib *del)
+{
+ struct rib *rib;
+ struct rib *next;
+ struct rib *fib = NULL;
+ struct rib *select = NULL;
+
+ for (rib = rn->info; rib; rib = next)
+ {
+ next = rib->next;
+
+ /* Currently installed rib. */
+ if (CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED))
+ fib = rib;
+
+ /* Skip unreachable nexthop. */
+ if (! nexthop_active_update (rn, rib, 0))
+ continue;
+
+ /* Infinit distance. */
+ if (rib->distance == DISTANCE_INFINITY)
+ continue;
+
+ /* Newly selected rib. */
+ if (! select || rib->distance < select->distance
+ || rib->type == ZEBRA_ROUTE_CONNECT)
+ select = rib;
+ }
+
+ /* Deleted route check. */
+ if (del && CHECK_FLAG (del->flags, ZEBRA_FLAG_SELECTED))
+ fib = del;
+
+ /* Same route is selected. */
+ if (select && select == fib)
+ {
+ if (CHECK_FLAG (select->flags, ZEBRA_FLAG_CHANGED))
+ {
+ redistribute_delete (&rn->p, select);
+ if (! RIB_SYSTEM_ROUTE (select))
+ rib_uninstall_kernel (rn, select);
+
+ /* Set real nexthop. */
+ nexthop_active_update (rn, select, 1);
+
+ if (! RIB_SYSTEM_ROUTE (select))
+ rib_install_kernel (rn, select);
+ redistribute_add (&rn->p, select);
+ }
+ return;
+ }
+
+ /* Uninstall old rib from forwarding table. */
+ if (fib)
+ {
+ redistribute_delete (&rn->p, fib);
+ if (! RIB_SYSTEM_ROUTE (fib))
+ rib_uninstall_kernel (rn, fib);
+ UNSET_FLAG (fib->flags, ZEBRA_FLAG_SELECTED);
+
+ /* Set real nexthop. */
+ nexthop_active_update (rn, fib, 1);
+ }
+
+ /* Install new rib into forwarding table. */
+ if (select)
+ {
+ /* Set real nexthop. */
+ nexthop_active_update (rn, select, 1);
+
+ if (! RIB_SYSTEM_ROUTE (select))
+ rib_install_kernel (rn, select);
+ SET_FLAG (select->flags, ZEBRA_FLAG_SELECTED);
+ redistribute_add (&rn->p, select);
+ }
+}
+
+/* Add RIB to head of the route node. */
+void
+rib_addnode (struct route_node *rn, struct rib *rib)
+{
+ struct rib *head;
+
+ head = rn->info;
+ if (head)
+ head->prev = rib;
+ rib->next = head;
+ rn->info = rib;
+}
+
+void
+rib_delnode (struct route_node *rn, struct rib *rib)
+{
+ if (rib->next)
+ rib->next->prev = rib->prev;
+ if (rib->prev)
+ rib->prev->next = rib->next;
+ else
+ rn->info = rib->next;
+}
+
+int
+rib_add_ipv4 (int type, int flags, struct prefix_ipv4 *p,
+ struct in_addr *gate, unsigned int ifindex, int table,
+ u_int32_t metric, u_char distance)
+{
+ struct rib *rib;
+ struct rib *same = NULL;
+ struct route_node *rn;
+ struct nexthop *nexthop;
+
+ /* Make it sure prefixlen is applied to the prefix. */
+ apply_mask_ipv4 (p);
+
+ /* Set default distance by route type. */
+ if (distance == 0)
+ {
+ distance = route_info[type].distance;
+
+ /* iBGP distance is 200. */
+ if (type == ZEBRA_ROUTE_BGP && CHECK_FLAG (flags, ZEBRA_FLAG_IBGP))
+ distance = 200;
+ }
+
+ /* Lookup route node.*/
+ rn = route_node_get (rib_table_ipv4, (struct prefix *) p);
+
+ /* If same type of route are installed, treat it as a implicit
+ withdraw. */
+ for (rib = rn->info; rib; rib = rib->next)
+ {
+ if (rib->type == ZEBRA_ROUTE_CONNECT)
+ {
+ nexthop = rib->nexthop;
+
+ /* Duplicate connected route comes in. */
+ if (rib->type == type
+ && (! table || rib->table == table)
+ && nexthop && nexthop->type == NEXTHOP_TYPE_IFINDEX
+ && nexthop->ifindex == ifindex)
+ {
+ rib->refcnt++;
+ return 0 ;
+ }
+ }
+ else if (rib->type == type
+ && (! table || rib->table == table))
+ {
+ same = rib;
+ rib_delnode (rn, same);
+ route_unlock_node (rn);
+ break;
+ }
+ }
+
+ /* Allocate new rib structure. */
+ rib = XMALLOC (MTYPE_RIB, sizeof (struct rib));
+ memset (rib, 0, sizeof (struct rib));
+ rib->type = type;
+ rib->distance = distance;
+ rib->flags = flags;
+ rib->metric = metric;
+ rib->table = table;
+ rib->nexthop_num = 0;
+ rib->uptime = time (NULL);
+
+ /* Nexthop settings. */
+ if (gate)
+ {
+ if (ifindex)
+ nexthop_ipv4_ifindex_add (rib, gate, ifindex);
+ else
+ nexthop_ipv4_add (rib, gate);
+ }
+ else
+ nexthop_ifindex_add (rib, ifindex);
+
+ /* If this route is kernel route, set FIB flag to the route. */
+ if (type == ZEBRA_ROUTE_KERNEL || type == ZEBRA_ROUTE_CONNECT)
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
+
+ /* Link new rib to node.*/
+ rib_addnode (rn, rib);
+
+ /* Process this route node. */
+ rib_process (rn, same);
+
+ /* Free implicit route.*/
+ if (same)
+ newrib_free (same);
+
+ return 0;
+}
+
+int
+rib_add_ipv4_multipath (struct prefix_ipv4 *p, struct rib *rib)
+{
+ struct route_node *rn;
+ struct rib *same;
+ struct nexthop *nexthop;
+
+ /* Make it sure prefixlen is applied to the prefix. */
+ apply_mask_ipv4 (p);
+
+ /* Set default distance by route type. */
+ if (rib->distance == 0)
+ {
+ rib->distance = route_info[rib->type].distance;
+
+ /* iBGP distance is 200. */
+ if (rib->type == ZEBRA_ROUTE_BGP
+ && CHECK_FLAG (rib->flags, ZEBRA_FLAG_IBGP))
+ rib->distance = 200;
+ }
+
+ /* Lookup route node.*/
+ rn = route_node_get (rib_table_ipv4, (struct prefix *) p);
+
+ /* If same type of route are installed, treat it as a implicit
+ withdraw. */
+ for (same = rn->info; same; same = same->next)
+ {
+ if (same->type == rib->type && same->table == rib->table
+ && same->type != ZEBRA_ROUTE_CONNECT)
+ {
+ rib_delnode (rn, same);
+ route_unlock_node (rn);
+ break;
+ }
+ }
+
+ /* If this route is kernel route, set FIB flag to the route. */
+ if (rib->type == ZEBRA_ROUTE_KERNEL || rib->type == ZEBRA_ROUTE_CONNECT)
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
+
+ /* Link new rib to node.*/
+ rib_addnode (rn, rib);
+
+ /* Process this route node. */
+ rib_process (rn, same);
+
+ /* Free implicit route.*/
+ if (same)
+ newrib_free (same);
+
+ return 0;
+}
+
+int
+rib_delete_ipv4 (int type, int flags, struct prefix_ipv4 *p,
+ struct in_addr *gate, unsigned int ifindex, int table)
+{
+ struct route_node *rn;
+ struct rib *rib;
+ struct rib *fib = NULL;
+ struct rib *same = NULL;
+ struct nexthop *nexthop;
+ char buf1[BUFSIZ];
+ char buf2[BUFSIZ];
+
+ /* Apply mask. */
+ apply_mask_ipv4 (p);
+
+ /* Lookup route node. */
+ rn = route_node_lookup (rib_table_ipv4, (struct prefix *) p);
+ if (! rn)
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ {
+ if (gate)
+ zlog_info ("route %s/%d via %s ifindex %d doesn't exist in rib",
+ inet_ntop (AF_INET, &p->prefix, buf1, BUFSIZ),
+ p->prefixlen,
+ inet_ntop (AF_INET, gate, buf2, BUFSIZ),
+ ifindex);
+ else
+ zlog_info ("route %s/%d ifindex %d doesn't exist in rib",
+ inet_ntop (AF_INET, &p->prefix, buf1, BUFSIZ),
+ p->prefixlen,
+ ifindex);
+ }
+ return ZEBRA_ERR_RTNOEXIST;
+ }
+
+ /* Lookup same type route. */
+ for (rib = rn->info; rib; rib = rib->next)
+ {
+ if (CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED))
+ fib = rib;
+
+ if (rib->type == ZEBRA_ROUTE_CONNECT)
+ {
+ nexthop = rib->nexthop;
+
+ if (rib->type == type
+ && (! table || rib->table == table)
+ && nexthop && nexthop->type == NEXTHOP_TYPE_IFINDEX
+ && nexthop->ifindex == ifindex)
+ {
+ if (rib->refcnt)
+ {
+ rib->refcnt--;
+ route_unlock_node (rn);
+ route_unlock_node (rn);
+ return 0;
+ }
+ same = rib;
+ break;
+ }
+ }
+ else
+ {
+ if (rib->type == type
+ && (!table || rib->table == table))
+ {
+ same = rib;
+ break;
+ }
+ }
+ }
+
+ /* If same type of route can't be found and this message is from
+ kernel. */
+ if (! same)
+ {
+ if (fib && type == ZEBRA_ROUTE_KERNEL)
+ {
+ /* Unset flags. */
+ for (nexthop = fib->nexthop; nexthop; nexthop = nexthop->next)
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
+
+ UNSET_FLAG (fib->flags, ZEBRA_FLAG_SELECTED);
+ }
+ else
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ {
+ if (gate)
+ zlog_info ("route %s/%d via %s ifindex %d type %d doesn't exist in rib",
+ inet_ntop (AF_INET, &p->prefix, buf1, BUFSIZ),
+ p->prefixlen,
+ inet_ntop (AF_INET, gate, buf2, BUFSIZ),
+ ifindex,
+ type);
+ else
+ zlog_info ("route %s/%d ifindex %d type %d doesn't exist in rib",
+ inet_ntop (AF_INET, &p->prefix, buf1, BUFSIZ),
+ p->prefixlen,
+ ifindex,
+ type);
+ }
+ route_unlock_node (rn);
+ return ZEBRA_ERR_RTNOEXIST;
+ }
+ }
+
+ if (same)
+ rib_delnode (rn, same);
+
+ /* Process changes. */
+ rib_process (rn, same);
+
+ if (same)
+ {
+ newrib_free (same);
+ route_unlock_node (rn);
+ }
+
+ route_unlock_node (rn);
+
+ return 0;
+}
+
+/* Delete all added route and close rib. */
+void
+rib_close_ipv4 ()
+{
+ struct route_node *rn;
+ struct rib *rib;
+
+ for (rn = route_top (rib_table_ipv4); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = rib->next)
+ if (! RIB_SYSTEM_ROUTE (rib)
+ && CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED))
+ rib_uninstall_kernel (rn, rib);
+}
+
+/* Install static route into rib. */
+void
+static_ipv4_install (struct prefix_ipv4 *p, struct static_ipv4 *si)
+{
+ struct rib *rib;
+ struct route_node *rn;
+
+ /* Lookup existing route */
+ rn = route_node_get (rib_table_ipv4, (struct prefix *) p);
+ for (rib = rn->info; rib; rib = rib->next)
+ if (rib->type == ZEBRA_ROUTE_STATIC && rib->distance == si->distance)
+ break;
+
+ if (rib)
+ {
+ /* Same distance static route is there. Update it with new
+ nexthop. */
+ rib_uninstall (rn, rib);
+ route_unlock_node (rn);
+
+ switch (si->type)
+ {
+ case STATIC_IPV4_GATEWAY:
+ nexthop_ipv4_add (rib, &si->gate.ipv4);
+ break;
+ case STATIC_IPV4_IFNAME:
+ nexthop_ifname_add (rib, si->gate.ifname);
+ break;
+ }
+ rib_process (rn, NULL);
+ }
+ else
+ {
+ /* This is new static route. */
+ rib = XMALLOC (MTYPE_RIB, sizeof (struct rib));
+ memset (rib, 0, sizeof (struct rib));
+
+ rib->type = ZEBRA_ROUTE_STATIC;
+ rib->distance = si->distance;
+ rib->metric = 0;
+ rib->nexthop_num = 0;
+
+ switch (si->type)
+ {
+ case STATIC_IPV4_GATEWAY:
+ nexthop_ipv4_add (rib, &si->gate.ipv4);
+ break;
+ case STATIC_IPV4_IFNAME:
+ nexthop_ifname_add (rib, si->gate.ifname);
+ break;
+ }
+
+ /* Link this rib to the tree. */
+ rib_addnode (rn, rib);
+
+ /* Process this prefix. */
+ rib_process (rn, NULL);
+ }
+}
+
+int
+static_ipv4_nexthop_same (struct nexthop *nexthop, struct static_ipv4 *si)
+{
+ if (nexthop->type == NEXTHOP_TYPE_IPV4
+ && si->type == STATIC_IPV4_GATEWAY
+ && IPV4_ADDR_SAME (&nexthop->gate.ipv4, &si->gate.ipv4))
+ return 1;
+ if (nexthop->type == NEXTHOP_TYPE_IFNAME
+ && si->type == STATIC_IPV4_IFNAME
+ && strcmp (nexthop->ifname, si->gate.ifname) == 0)
+ return 1;
+ return 0;;
+}
+
+/* Uninstall static route from RIB. */
+void
+static_ipv4_uninstall (struct prefix_ipv4 *p, struct static_ipv4 *si)
+{
+ struct route_node *rn;
+ struct rib *rib;
+ struct nexthop *nexthop;
+
+ /* Lookup existing route with type and distance. */
+ rn = route_node_lookup (rib_table_ipv4, (struct prefix *) p);
+ if (! rn)
+ return;
+
+ for (rib = rn->info; rib; rib = rib->next)
+ if (rib->type == ZEBRA_ROUTE_STATIC && rib->distance == si->distance)
+ break;
+ if (! rib)
+ {
+ route_unlock_node (rn);
+ return;
+ }
+
+ /* Lookup nexthop. */
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ if (static_ipv4_nexthop_same (nexthop, si))
+ break;
+
+ /* Can't find nexthop. */
+ if (! nexthop)
+ {
+ route_unlock_node (rn);
+ return;
+ }
+
+ /* Check nexthop. */
+ if (rib->nexthop_num == 1)
+ {
+ rib_delnode (rn, rib);
+ rib_process (rn, rib);
+ newrib_free (rib);
+ route_unlock_node (rn);
+ }
+ else
+ {
+ rib_uninstall (rn, rib);
+ nexthop_delete (rib, nexthop);
+ nexthop_free (nexthop);
+ rib_process (rn, rib);
+ }
+
+ /* Unlock node. */
+ route_unlock_node (rn);
+}
+
+/* Add static route into static route configuration. */
+int
+static_ipv4_add (struct prefix_ipv4 *p, struct in_addr *gate, char *ifname,
+ u_char distance, int table)
+{
+ u_char type = 0;
+ struct route_node *rn;
+ struct static_ipv4 *si;
+ struct static_ipv4 *pp;
+ struct static_ipv4 *cp;
+
+ /* Lookup static route prefix. */
+ rn = route_node_get (static_table_ipv4, (struct prefix *) p);
+
+ /* Make flags. */
+ if (gate)
+ type = STATIC_IPV4_GATEWAY;
+ if (ifname)
+ type = STATIC_IPV4_IFNAME;
+
+ /* Do nothing if there is a same static route. */
+ for (si = rn->info; si; si = si->next)
+ {
+ if (distance == si->distance
+ && type == si->type
+ && (! gate || IPV4_ADDR_SAME (gate, &si->gate.ipv4))
+ && (! ifname || strcmp (ifname, si->gate.ifname) == 0))
+ {
+ route_unlock_node (rn);
+ return 0;
+ }
+ }
+
+ /* Make new static route structure. */
+ si = XMALLOC (MTYPE_STATIC_IPV4, sizeof (struct static_ipv4));
+ memset (si, 0, sizeof (struct static_ipv4));
+
+ si->type = type;
+ si->distance = distance;
+
+ if (gate)
+ si->gate.ipv4 = *gate;
+ if (ifname)
+ si->gate.ifname = XSTRDUP (0, ifname);
+
+ /* Add new static route information to the tree with sort by
+ distance value and gateway address. */
+ for (pp = NULL, cp = rn->info; cp; pp = cp, cp = cp->next)
+ {
+ if (si->distance < cp->distance)
+ break;
+ if (si->distance > cp->distance)
+ continue;
+ if (si->type == STATIC_IPV4_GATEWAY && cp->type == STATIC_IPV4_GATEWAY)
+ {
+ if (ntohl (si->gate.ipv4.s_addr) < ntohl (cp->gate.ipv4.s_addr))
+ break;
+ if (ntohl (si->gate.ipv4.s_addr) > ntohl (cp->gate.ipv4.s_addr))
+ continue;
+ }
+ }
+
+ /* Make linked list. */
+ if (pp)
+ pp->next = si;
+ else
+ rn->info = si;
+ if (cp)
+ cp->prev = si;
+ si->prev = pp;
+ si->next = cp;
+
+ /* Install into rib. */
+ static_ipv4_install (p, si);
+
+ return 1;
+}
+
+/* Delete static route from static route configuration. */
+int
+static_ipv4_delete (struct prefix_ipv4 *p, struct in_addr *gate, char *ifname,
+ u_char distance, int table)
+{
+ u_char type = 0;
+ struct route_node *rn;
+ struct static_ipv4 *si;
+
+ /* Lookup static route prefix. */
+ rn = route_node_lookup (static_table_ipv4, (struct prefix *) p);
+ if (! rn)
+ return 0;
+
+ /* Make flags. */
+ if (gate)
+ type = STATIC_IPV4_GATEWAY;
+ if (ifname)
+ type = STATIC_IPV4_IFNAME;
+
+ /* Find same static route is the tree */
+ for (si = rn->info; si; si = si->next)
+ if (distance == si->distance
+ && type == si->type
+ && (! gate || IPV4_ADDR_SAME (gate, &si->gate.ipv4))
+ && (! ifname || strcmp (ifname, si->gate.ifname) == 0))
+ break;
+
+ /* Can't find static route. */
+ if (! si)
+ {
+ route_unlock_node (rn);
+ return 0;
+ }
+
+ /* Install into rib. */
+ static_ipv4_uninstall (p, si);
+
+ /* Unlink static route from linked list. */
+ if (si->prev)
+ si->prev->next = si->next;
+ else
+ rn->info = si->next;
+ if (si->next)
+ si->next->prev = si->prev;
+
+ /* Free static route configuration. */
+ XFREE (MTYPE_STATIC_IPV4, si);
+
+ return 1;
+}
+
+/* Write IPv4 static route configuration. */
+int
+static_ipv4_write (struct vty *vty)
+{
+ struct route_node *rn;
+ struct static_ipv4 *si;
+ int write;
+
+ write = 0;
+
+ for (rn = route_top (static_table_ipv4); rn; rn = route_next (rn))
+ for (si = rn->info; si; si = si->next)
+ {
+ vty_out (vty, "ip route %s/%d", inet_ntoa (rn->p.u.prefix4),
+ rn->p.prefixlen);
+
+ switch (si->type)
+ {
+ case STATIC_IPV4_GATEWAY:
+ vty_out (vty, " %s", inet_ntoa (si->gate.ipv4));
+ break;
+ case STATIC_IPV4_IFNAME:
+ vty_out (vty, " %s", si->gate.ifname);
+ break;
+ }
+
+ if (si->distance != ZEBRA_STATIC_DISTANCE_DEFAULT)
+ vty_out (vty, " %d", si->distance);
+ vty_out (vty, "%s", VTY_NEWLINE);
+
+ write = 1;
+ }
+ return write;
+}
+
+/* General fucntion for static route. */
+int
+static_ipv4_func (struct vty *vty, int add_cmd,
+ char *dest_str, char *mask_str, char *gate_str,
+ char *distance_str)
+{
+ int ret;
+ u_char distance;
+ struct prefix_ipv4 p;
+ struct in_addr gate;
+ struct in_addr mask;
+ char *ifname;
+ int table = rtm_table_default;
+
+ ret = str2prefix_ipv4 (dest_str, &p);
+ if (ret <= 0)
+ {
+ vty_out (vty, "%% Malformed address%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ /* Cisco like mask notation. */
+ if (mask_str)
+ {
+ ret = inet_aton (mask_str, &mask);
+ if (ret == 0)
+ {
+ vty_out (vty, "%% Malformed address%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+ p.prefixlen = ip_masklen (mask);
+ }
+
+ /* Apply mask for given prefix. */
+ apply_mask_ipv4 (&p);
+
+ /* Administrative distance. */
+ if (distance_str)
+ distance = atoi (distance_str);
+ else
+ distance = ZEBRA_STATIC_DISTANCE_DEFAULT;
+
+ /* When gateway is A.B.C.D format, gate is treated as nexthop
+ address other case gate is treated as interface name. */
+ ret = inet_aton (gate_str, &gate);
+ if (ret)
+ ifname = NULL;
+ else
+ ifname = gate_str;
+
+ if (add_cmd)
+ static_ipv4_add (&p, ifname ? NULL : &gate, ifname, distance, table);
+ else
+ static_ipv4_delete (&p, ifname ? NULL : &gate, ifname, distance, table);
+
+ return CMD_SUCCESS;
+}
+
+/* Static route configuration. */
+DEFUN (ip_route,
+ ip_route_cmd,
+ "ip route A.B.C.D/M (A.B.C.D|INTERFACE)",
+ IP_STR
+ "Establish static routes\n"
+ "IP destination prefix (e.g. 10.0.0.0/8)\n"
+ "IP gateway address\n"
+ "IP gateway interface name\n")
+{
+ return static_ipv4_func (vty, 1, argv[0], NULL, argv[1], NULL);
+}
+
+DEFUN (ip_route_mask,
+ ip_route_mask_cmd,
+ "ip route A.B.C.D A.B.C.D (A.B.C.D|INTERFACE)",
+ IP_STR
+ "Establish static routes\n"
+ "IP destination prefix\n"
+ "IP destination prefix mask\n"
+ "IP gateway address\n"
+ "IP gateway interface name\n")
+{
+ return static_ipv4_func (vty, 1, argv[0], argv[1], argv[2], NULL);
+}
+
+DEFUN (ip_route_pref,
+ ip_route_pref_cmd,
+ "ip route A.B.C.D/M (A.B.C.D|INTERFACE) <1-255>",
+ IP_STR
+ "Establish static routes\n"
+ "IP destination prefix (e.g. 10.0.0.0/8)\n"
+ "IP gateway address\n"
+ "IP gateway interface name\n"
+ "Distance value for this route\n")
+{
+ return static_ipv4_func (vty, 1, argv[0], NULL, argv[1], argv[2]);
+}
+
+DEFUN (ip_route_mask_pref,
+ ip_route_mask_pref_cmd,
+ "ip route A.B.C.D A.B.C.D (A.B.C.D|INTERFACE) <1-255>",
+ IP_STR
+ "Establish static routes\n"
+ "IP destination prefix\n"
+ "IP destination prefix mask\n"
+ "IP gateway address\n"
+ "IP gateway interface name\n"
+ "Distance value for this route\n")
+{
+ return static_ipv4_func (vty, 1, argv[0], argv[1], argv[2], argv[3]);
+}
+
+DEFUN (no_ip_route,
+ no_ip_route_cmd,
+ "no ip route A.B.C.D/M (A.B.C.D|INTERFACE)",
+ NO_STR
+ IP_STR
+ "Establish static routes\n"
+ "IP destination prefix (e.g. 10.0.0.0/8)\n"
+ "IP gateway address\n"
+ "IP gateway interface name\n")
+{
+ return static_ipv4_func (vty, 0, argv[0], NULL, argv[1], NULL);
+}
+
+DEFUN (no_ip_route_mask,
+ no_ip_route_mask_cmd,
+ "no ip route A.B.C.D A.B.C.D (A.B.C.D|INTERFACE)",
+ NO_STR
+ IP_STR
+ "Establish static routes\n"
+ "IP destination prefix\n"
+ "IP destination prefix mask\n"
+ "IP gateway address\n"
+ "IP gateway interface name\n")
+{
+ return static_ipv4_func (vty, 0, argv[0], argv[1], argv[2], NULL);
+}
+
+DEFUN (no_ip_route_pref,
+ no_ip_route_pref_cmd,
+ "no ip route A.B.C.D/M (A.B.C.D|INTERFACE) <1-255>",
+ NO_STR
+ IP_STR
+ "Establish static routes\n"
+ "IP destination prefix (e.g. 10.0.0.0/8)\n"
+ "IP gateway address\n"
+ "IP gateway interface name\n"
+ "Distance value for this route\n")
+{
+ return static_ipv4_func (vty, 0, argv[0], NULL, argv[1], argv[2]);
+}
+
+DEFUN (no_ip_route_mask_pref,
+ no_ip_route_mask_pref_cmd,
+ "no ip route A.B.C.D A.B.C.D (A.B.C.D|INTERFACE) <1-255>",
+ NO_STR
+ IP_STR
+ "Establish static routes\n"
+ "IP destination prefix\n"
+ "IP destination prefix mask\n"
+ "IP gateway address\n"
+ "IP gateway interface name\n"
+ "Distance value for this route\n")
+{
+ return static_ipv4_func (vty, 0, argv[0], argv[1], argv[2], argv[3]);
+}
+
+/* New RIB. Detailed information for IPv4 route. */
+void
+vty_show_ip_route_detail (struct vty *vty, struct route_node *rn)
+{
+ struct rib *rib;
+ struct nexthop *nexthop;
+
+ for (rib = rn->info; rib; rib = rib->next)
+ {
+ vty_out (vty, "Routing entry for %s/%d%s",
+ inet_ntoa (rn->p.u.prefix4), rn->p.prefixlen,
+ VTY_NEWLINE);
+ vty_out (vty, " Known via \"%s\"", route_info[rib->type].str);
+ vty_out (vty, ", distance %d, metric %d", rib->distance, rib->metric);
+ if (CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED))
+ vty_out (vty, ", best");
+ if (rib->refcnt)
+ vty_out (vty, ", refcnt %ld", rib->refcnt);
+ vty_out (vty, "%s", VTY_NEWLINE);
+
+#define ONE_DAY_SECOND 60*60*24
+#define ONE_WEEK_SECOND 60*60*24*7
+ if (rib->type == ZEBRA_ROUTE_RIP
+ || rib->type == ZEBRA_ROUTE_OSPF
+ || rib->type == ZEBRA_ROUTE_ISIS
+ || rib->type == ZEBRA_ROUTE_BGP)
+ {
+ time_t uptime;
+ struct tm *tm;
+
+ uptime = time (NULL);
+ uptime -= rib->uptime;
+ tm = gmtime (&uptime);
+
+ vty_out (vty, " Last update ");
+
+ if (uptime < ONE_DAY_SECOND)
+ vty_out (vty, "%02d:%02d:%02d",
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ else if (uptime < ONE_WEEK_SECOND)
+ vty_out (vty, "%dd%02dh%02dm",
+ tm->tm_yday, tm->tm_hour, tm->tm_min);
+ else
+ vty_out (vty, "%02dw%dd%02dh",
+ tm->tm_yday/7,
+ tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour);
+ vty_out (vty, " ago%s", VTY_NEWLINE);
+ }
+
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ {
+ vty_out (vty, " %c",
+ CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB) ? '*' : ' ');
+
+ switch (nexthop->type)
+ {
+ case NEXTHOP_TYPE_IPV4:
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
+ vty_out (vty, " %s", inet_ntoa (nexthop->gate.ipv4));
+ if (nexthop->ifindex)
+ vty_out (vty, ", via %s", ifindex2ifname (nexthop->ifindex));
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ vty_out (vty, " directly connected, %s",
+ ifindex2ifname (nexthop->ifindex));
+ break;
+ case NEXTHOP_TYPE_IFNAME:
+ vty_out (vty, " directly connected, %s",
+ nexthop->ifname);
+ break;
+ default:
+ break;
+ }
+ if (! CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
+ vty_out (vty, " inactive");
+
+ if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
+ {
+ vty_out (vty, " (recursive");
+
+ switch (nexthop->rtype)
+ {
+ case NEXTHOP_TYPE_IPV4:
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
+ vty_out (vty, " via %s)", inet_ntoa (nexthop->rgate.ipv4));
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ case NEXTHOP_TYPE_IFNAME:
+ vty_out (vty, " is directly connected, %s)",
+ ifindex2ifname (nexthop->rifindex));
+ break;
+ default:
+ break;
+ }
+ }
+ vty_out (vty, "%s", VTY_NEWLINE);
+ }
+ vty_out (vty, "%s", VTY_NEWLINE);
+ }
+}
+
+void
+vty_show_ip_route (struct vty *vty, struct route_node *rn, struct rib *rib)
+{
+ struct nexthop *nexthop;
+ int len = 0;
+ char buf[BUFSIZ];
+
+ /* Nexthop information. */
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ {
+ if (nexthop == rib->nexthop)
+ {
+ /* Prefix information. */
+ len = vty_out (vty, "%c%c%c %s/%d",
+ route_info[rib->type].c,
+ CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED)
+ ? '>' : ' ',
+ CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)
+ ? '*' : ' ',
+ inet_ntop (AF_INET, &rn->p.u.prefix, buf, BUFSIZ),
+ rn->p.prefixlen);
+
+ /* Distance and metric display. */
+ if (rib->type != ZEBRA_ROUTE_CONNECT
+ && rib->type != ZEBRA_ROUTE_KERNEL)
+ len += vty_out (vty, " [%d/%d]", rib->distance,
+ rib->metric);
+ }
+ else
+ vty_out (vty, " %c%*c",
+ CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)
+ ? '*' : ' ',
+ len - 3, ' ');
+
+ switch (nexthop->type)
+ {
+ case NEXTHOP_TYPE_IPV4:
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
+ vty_out (vty, " via %s", inet_ntoa (nexthop->gate.ipv4));
+ if (nexthop->ifindex)
+ vty_out (vty, ", %s", ifindex2ifname (nexthop->ifindex));
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ vty_out (vty, " is directly connected, %s",
+ ifindex2ifname (nexthop->ifindex));
+ break;
+ case NEXTHOP_TYPE_IFNAME:
+ vty_out (vty, " is directly connected, %s",
+ nexthop->ifname);
+ break;
+ default:
+ break;
+ }
+ if (! CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
+ vty_out (vty, " inactive");
+
+ if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
+ {
+ vty_out (vty, " (recursive");
+
+ switch (nexthop->rtype)
+ {
+ case NEXTHOP_TYPE_IPV4:
+ case NEXTHOP_TYPE_IPV4_IFINDEX:
+ vty_out (vty, " via %s)", inet_ntoa (nexthop->rgate.ipv4));
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ case NEXTHOP_TYPE_IFNAME:
+ vty_out (vty, " is directly connected, %s)",
+ ifindex2ifname (nexthop->rifindex));
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (rib->type == ZEBRA_ROUTE_RIP
+ || rib->type == ZEBRA_ROUTE_OSPF
+ || rib->type == ZEBRA_ROUTE_ISIS
+ || rib->type == ZEBRA_ROUTE_BGP)
+ {
+ time_t uptime;
+ struct tm *tm;
+
+ uptime = time (NULL);
+ uptime -= rib->uptime;
+ tm = gmtime (&uptime);
+
+#define ONE_DAY_SECOND 60*60*24
+#define ONE_WEEK_SECOND 60*60*24*7
+
+ if (uptime < ONE_DAY_SECOND)
+ vty_out (vty, ", %02d:%02d:%02d",
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ else if (uptime < ONE_WEEK_SECOND)
+ vty_out (vty, ", %dd%02dh%02dm",
+ tm->tm_yday, tm->tm_hour, tm->tm_min);
+ else
+ vty_out (vty, ", %02dw%dd%02dh",
+ tm->tm_yday/7,
+ tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour);
+ }
+ vty_out (vty, "%s", VTY_NEWLINE);
+ }
+}
+
+#define SHOW_ROUTE_V4_HEADER "Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF,%s I - IS-IS, %s B - BGP, > - selected route, * - FIB route%s%s"
+
+DEFUN (show_ip_route,
+ show_ip_route_cmd,
+ "show ip route",
+ SHOW_STR
+ IP_STR
+ "IP routing table\n")
+{
+ struct route_node *rn;
+ struct rib *rib;
+ int first = 1;
+
+ /* Show all IPv4 routes. */
+ for (rn = route_top (rib_table_ipv4); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = rib->next)
+ {
+ if (first)
+ {
+ vty_out (vty, SHOW_ROUTE_V4_HEADER, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE);
+ first = 0;
+ }
+ vty_show_ip_route (vty, rn, rib);
+ }
+ return CMD_SUCCESS;
+}
+
+DEFUN (show_ip_route_prefix_longer,
+ show_ip_route_prefix_longer_cmd,
+ "show ip route A.B.C.D/M longer-prefixes",
+ SHOW_STR
+ IP_STR
+ "IP routing table\n"
+ "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
+ "Show route matching the specified Network/Mask pair only\n")
+{
+ struct route_node *rn;
+ struct rib *rib;
+ struct prefix p;
+ int ret;
+ int first = 1;
+
+ ret = str2prefix (argv[0], &p);
+ if (! ret)
+ {
+ vty_out (vty, "%% Malformed Prefix%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ /* Show matched type IPv4 routes. */
+ for (rn = route_top (rib_table_ipv4); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = rib->next)
+ if (prefix_match (&p, &rn->p))
+ {
+ if (first)
+ {
+ vty_out (vty, SHOW_ROUTE_V4_HEADER, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE);
+ first = 0;
+ }
+ vty_show_ip_route (vty, rn, rib);
+ }
+ return CMD_SUCCESS;
+}
+
+DEFUN (show_ip_route_supernets,
+ show_ip_route_supernets_cmd,
+ "show ip route supernets-only",
+ SHOW_STR
+ IP_STR
+ "IP routing table\n"
+ "Show supernet entries only\n")
+{
+ struct route_node *rn;
+ struct rib *rib;
+ u_int32_t addr;
+ int first = 1;
+
+
+ /* Show matched type IPv4 routes. */
+ for (rn = route_top (rib_table_ipv4); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = rib->next)
+ {
+ addr = ntohl (rn->p.u.prefix4.s_addr);
+
+ if ((IN_CLASSC (addr) && rn->p.prefixlen < 24)
+ || (IN_CLASSB (addr) && rn->p.prefixlen < 16)
+ || (IN_CLASSA (addr) && rn->p.prefixlen < 8))
+ {
+ if (first)
+ {
+ vty_out (vty, SHOW_ROUTE_V4_HEADER, VTY_NEWLINE, VTY_NEWLINE,
+ VTY_NEWLINE, VTY_NEWLINE);
+ first = 0;
+ }
+ vty_show_ip_route (vty, rn, rib);
+ }
+ }
+ return CMD_SUCCESS;
+}
+
+
+DEFUN (show_ip_route_protocol,
+ show_ip_route_protocol_cmd,
+ "show ip route (bgp|connected|kernel|ospf|isis|rip|static)",
+ SHOW_STR
+ IP_STR
+ "IP routing table\n"
+ "Border Gateway Protocol (BGP)\n"
+ "Connected\n"
+ "Kernel\n"
+ "Open Shortest Path First (OSPF)\n"
+ "ISO IS-IS (ISIS)\n"
+ "Routing Information Protocol (RIP)\n"
+ "Static routes\n")
+{
+ int type;
+ struct route_node *rn;
+ struct rib *rib;
+ int first = 1;
+
+ if (strncmp (argv[0], "b", 1) == 0)
+ type = ZEBRA_ROUTE_BGP;
+ else if (strncmp (argv[0], "c", 1) == 0)
+ type = ZEBRA_ROUTE_CONNECT;
+ else if (strncmp (argv[0], "k", 1) ==0)
+ type = ZEBRA_ROUTE_KERNEL;
+ else if (strncmp (argv[0], "o", 1) == 0)
+ type = ZEBRA_ROUTE_OSPF;
+ else if (strncmp (argv[0], "i", 1) == 0)
+ type = ZEBRA_ROUTE_ISIS;
+ else if (strncmp (argv[0], "r", 1) == 0)
+ type = ZEBRA_ROUTE_RIP;
+ else if (strncmp (argv[0], "s", 1) == 0)
+ type = ZEBRA_ROUTE_STATIC;
+ else
+ {
+ vty_out (vty, "Unknown route type%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ /* Show matched type IPv4 routes. */
+ for (rn = route_top (rib_table_ipv4); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = rib->next)
+ if (rib->type == type)
+ {
+ if (first)
+ {
+ vty_out (vty, SHOW_ROUTE_V4_HEADER, VTY_NEWLINE, VTY_NEWLINE,
+ VTY_NEWLINE, VTY_NEWLINE);
+ first = 0;
+ }
+ vty_show_ip_route (vty, rn, rib);
+ }
+ return CMD_SUCCESS;
+}
+
+DEFUN (show_ip_route_addr,
+ show_ip_route_addr_cmd,
+ "show ip route A.B.C.D",
+ SHOW_STR
+ IP_STR
+ "IP routing table\n"
+ "Network in the IP routing table to display\n")
+{
+ int ret;
+ struct prefix_ipv4 p;
+ struct route_node *rn;
+
+ ret = str2prefix_ipv4 (argv[0], &p);
+ if (ret <= 0)
+ {
+ vty_out (vty, "Malformed IPv4 address%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ rn = route_node_match (rib_table_ipv4, (struct prefix *) &p);
+ if (! rn)
+ {
+ vty_out (vty, "%% Network not in table%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ vty_show_ip_route_detail (vty, rn);
+
+ route_unlock_node (rn);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN (show_ip_route_prefix,
+ show_ip_route_prefix_cmd,
+ "show ip route A.B.C.D/M",
+ SHOW_STR
+ IP_STR
+ "IP routing table\n"
+ "IP prefix <network>/<length>, e.g., 35.0.0.0/8\n")
+{
+ int ret;
+ struct prefix_ipv4 p;
+ struct route_node *rn;
+
+ ret = str2prefix_ipv4 (argv[0], &p);
+ if (ret <= 0)
+ {
+ vty_out (vty, "Malformed IPv4 address%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ rn = route_node_match (rib_table_ipv4, (struct prefix *) &p);
+ if (! rn || rn->p.prefixlen != p.prefixlen)
+ {
+ vty_out (vty, "%% Network not in table%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ vty_show_ip_route_detail (vty, rn);
+
+ route_unlock_node (rn);
+
+ return CMD_SUCCESS;
+}
+
+#ifdef HAVE_IPV6
+int
+rib_bogus_ipv6 (int type, struct prefix_ipv6 *p,
+ struct in6_addr *gate, unsigned int ifindex, int table)
+{
+ if (type == ZEBRA_ROUTE_CONNECT && IN6_IS_ADDR_UNSPECIFIED (&p->prefix))
+ return 1;
+ if (type == ZEBRA_ROUTE_KERNEL && IN6_IS_ADDR_UNSPECIFIED (&p->prefix)
+ && p->prefixlen == 96 && gate && IN6_IS_ADDR_UNSPECIFIED (gate))
+ {
+ kernel_delete_ipv6_old (p, gate, ifindex, 0, table);
+ return 1;
+ }
+ return 0;
+}
+
+int
+rib_add_ipv6 (int type, int flags, struct prefix_ipv6 *p,
+ struct in6_addr *gate, unsigned int ifindex, int table)
+{
+ struct rib *rib;
+ struct rib *same = NULL;
+ struct route_node *rn;
+ struct nexthop *nexthop;
+
+ int distance;
+ u_int32_t metric = 0;
+
+ /* Make sure mask is applied. */
+ apply_mask_ipv6 (p);
+
+ /* Set default distance by route type. */
+ distance = route_info[type].distance;
+
+ if (type == ZEBRA_ROUTE_BGP && CHECK_FLAG (flags, ZEBRA_FLAG_IBGP))
+ distance = 200;
+
+ /* Make new rib. */
+ if (!table)
+ table = RT_TABLE_MAIN;
+
+ /* Filter bogus route. */
+ if (rib_bogus_ipv6 (type, p, gate, ifindex, table))
+ return 0;
+
+ /* Lookup route node.*/
+ rn = route_node_get (rib_table_ipv6, (struct prefix *) p);
+
+ /* If same type of route are installed, treat it as a implicit
+ withdraw. */
+ for (rib = rn->info; rib; rib = rib->next)
+ {
+ if (rib->type == ZEBRA_ROUTE_CONNECT)
+ {
+ nexthop = rib->nexthop;
+
+ if (rib->type == type
+ && (! table || rib->table == table)
+ && nexthop && nexthop->type == NEXTHOP_TYPE_IFINDEX
+ && nexthop->ifindex == ifindex)
+ {
+ rib->refcnt++;
+ return 0;
+ }
+ }
+ else if (rib->type == type
+ && (! table || (rib->table == table)))
+ {
+ same = rib;
+ rib_delnode (rn, same);
+ route_unlock_node (rn);
+ break;
+ }
+ }
+
+ /* Allocate new rib structure. */
+ rib = XMALLOC (MTYPE_RIB, sizeof (struct rib));
+ memset (rib, 0, sizeof (struct rib));
+ rib->type = type;
+ rib->distance = distance;
+ rib->flags = flags;
+ rib->metric = metric;
+ rib->table = table;
+ rib->nexthop_num = 0;
+ rib->uptime = time (NULL);
+
+ /* Nexthop settings. */
+ if (gate)
+ {
+ if (ifindex)
+ nexthop_ipv6_ifindex_add (rib, gate, ifindex);
+ else
+ nexthop_ipv6_add (rib, gate);
+ }
+ else
+ nexthop_ifindex_add (rib, ifindex);
+
+ /* If this route is kernel route, set FIB flag to the route. */
+ if (type == ZEBRA_ROUTE_KERNEL || type == ZEBRA_ROUTE_CONNECT)
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
+
+ /* Link new rib to node.*/
+ rib_addnode (rn, rib);
+
+ /* Process this route node. */
+ rib_process (rn, same);
+
+ /* Free implicit route.*/
+ if (same)
+ newrib_free (same);
+
+ return 0;
+}
+
+int
+rib_delete_ipv6 (int type, int flags, struct prefix_ipv6 *p,
+ struct in6_addr *gate, unsigned int ifindex, int table)
+{
+ struct route_node *rn;
+ struct rib *rib;
+ struct rib *fib = NULL;
+ struct rib *same = NULL;
+ struct nexthop *nexthop;
+ char buf1[BUFSIZ];
+ char buf2[BUFSIZ];
+
+ /* Apply mask. */
+ apply_mask_ipv6 (p);
+
+ /* Lookup route node. */
+ rn = route_node_lookup (rib_table_ipv6, (struct prefix *) p);
+ if (! rn)
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ {
+ if (gate)
+ zlog_info ("route %s/%d via %s ifindex %d doesn't exist in rib",
+ inet_ntop (AF_INET6, &p->prefix, buf1, BUFSIZ),
+ p->prefixlen,
+ inet_ntop (AF_INET6, gate, buf2, BUFSIZ),
+ ifindex);
+ else
+ zlog_info ("route %s/%d ifindex %d doesn't exist in rib",
+ inet_ntop (AF_INET6, &p->prefix, buf1, BUFSIZ),
+ p->prefixlen,
+ ifindex);
+ }
+ return ZEBRA_ERR_RTNOEXIST;
+ }
+
+ /* Lookup same type route. */
+ for (rib = rn->info; rib; rib = rib->next)
+ {
+ if (CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED))
+ fib = rib;
+
+ if (rib->type == ZEBRA_ROUTE_CONNECT)
+ {
+ nexthop = rib->nexthop;
+
+ if (rib->type == type
+ && (! table || rib->table == table)
+ && nexthop && nexthop->type == NEXTHOP_TYPE_IFINDEX
+ && nexthop->ifindex == ifindex)
+ {
+ if (rib->refcnt)
+ {
+ rib->refcnt--;
+ route_unlock_node (rn);
+ route_unlock_node (rn);
+ return 0;
+ }
+ same = rib;
+ break;
+ }
+ }
+ else
+ {
+ if (rib->type == type
+ && (! table || rib->table == table))
+ {
+ same = rib;
+ break;
+ }
+ }
+ }
+
+ /* If same type of route can't be found and this message is from
+ kernel. */
+ if (! same)
+ {
+ if (fib && type == ZEBRA_ROUTE_KERNEL)
+ {
+ /* Unset flags. */
+ for (nexthop = fib->nexthop; nexthop; nexthop = nexthop->next)
+ UNSET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
+
+ UNSET_FLAG (fib->flags, ZEBRA_FLAG_SELECTED);
+ }
+ else
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ {
+ if (gate)
+ zlog_info ("route %s/%d via %s ifindex %d type %d doesn't exist in rib",
+ inet_ntop (AF_INET6, &p->prefix, buf1, BUFSIZ),
+ p->prefixlen,
+ inet_ntop (AF_INET6, gate, buf2, BUFSIZ),
+ ifindex,
+ type);
+ else
+ zlog_info ("route %s/%d ifindex %d type %d doesn't exist in rib",
+ inet_ntop (AF_INET6, &p->prefix, buf1, BUFSIZ),
+ p->prefixlen,
+ ifindex,
+ type);
+ }
+ route_unlock_node (rn);
+ return ZEBRA_ERR_RTNOEXIST;
+ }
+ }
+
+ if (same)
+ rib_delnode (rn, same);
+
+ /* Process changes. */
+ rib_process (rn, same);
+
+ if (same)
+ {
+ newrib_free (same);
+ route_unlock_node (rn);
+ }
+
+ route_unlock_node (rn);
+
+ return 0;
+}
+
+/* Delete non system routes. */
+void
+rib_close_ipv6 ()
+{
+ struct route_node *rn;
+ struct rib *rib;
+
+ for (rn = route_top (rib_table_ipv6); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = rib->next)
+ if (! RIB_SYSTEM_ROUTE (rib)
+ && CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED))
+ rib_uninstall_kernel (rn, rib);
+}
+
+/* Install static route into rib. */
+void
+static_ipv6_install (struct prefix_ipv6 *p, struct static_ipv6 *si)
+{
+ struct rib *rib;
+ struct route_node *rn;
+
+ /* Lookup existing route */
+ rn = route_node_get (rib_table_ipv6, (struct prefix *) p);
+ for (rib = rn->info; rib; rib = rib->next)
+ if (rib->type == ZEBRA_ROUTE_STATIC && rib->distance == si->distance)
+ break;
+
+ if (rib)
+ {
+ /* Same distance static route is there. Update it with new
+ nexthop. */
+ rib_uninstall (rn, rib);
+ route_unlock_node (rn);
+
+ switch (si->type)
+ {
+ case STATIC_IPV6_GATEWAY:
+ nexthop_ipv6_add (rib, &si->ipv6);
+ break;
+ case STATIC_IPV6_IFNAME:
+ nexthop_ifname_add (rib, si->ifname);
+ break;
+ case STATIC_IPV6_GATEWAY_IFNAME:
+ nexthop_ipv6_ifname_add (rib, &si->ipv6, si->ifname);
+ break;
+ }
+ rib_process (rn, NULL);
+ }
+ else
+ {
+ /* This is new static route. */
+ rib = XMALLOC (MTYPE_RIB, sizeof (struct rib));
+ memset (rib, 0, sizeof (struct rib));
+
+ rib->type = ZEBRA_ROUTE_STATIC;
+ rib->distance = si->distance;
+ rib->metric = 0;
+ rib->nexthop_num = 0;
+
+ switch (si->type)
+ {
+ case STATIC_IPV6_GATEWAY:
+ nexthop_ipv6_add (rib, &si->ipv6);
+ break;
+ case STATIC_IPV6_IFNAME:
+ nexthop_ifname_add (rib, si->ifname);
+ break;
+ case STATIC_IPV6_GATEWAY_IFNAME:
+ nexthop_ipv6_ifname_add (rib, &si->ipv6, si->ifname);
+ break;
+ }
+
+ /* Link this rib to the tree. */
+ rib_addnode (rn, rib);
+
+ /* Process this prefix. */
+ rib_process (rn, NULL);
+ }
+}
+
+int
+static_ipv6_nexthop_same (struct nexthop *nexthop, struct static_ipv6 *si)
+{
+ if (nexthop->type == NEXTHOP_TYPE_IPV6
+ && si->type == STATIC_IPV6_GATEWAY
+ && IPV6_ADDR_SAME (&nexthop->gate.ipv6, &si->ipv6))
+ return 1;
+ if (nexthop->type == NEXTHOP_TYPE_IFNAME
+ && si->type == STATIC_IPV6_IFNAME
+ && strcmp (nexthop->ifname, si->ifname) == 0)
+ return 1;
+ if (nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME
+ && si->type == STATIC_IPV6_GATEWAY_IFNAME
+ && IPV6_ADDR_SAME (&nexthop->gate.ipv6, &si->ipv6)
+ && strcmp (nexthop->ifname, si->ifname) == 0)
+ return 1;
+ return 0;;
+}
+
+void
+static_ipv6_uninstall (struct prefix_ipv6 *p, struct static_ipv6 *si)
+{
+ struct route_node *rn;
+ struct rib *rib;
+ struct nexthop *nexthop;
+
+ /* Lookup existing route with type and distance. */
+ rn = route_node_lookup (rib_table_ipv6, (struct prefix *) p);
+ if (! rn)
+ return;
+
+ for (rib = rn->info; rib; rib = rib->next)
+ if (rib->type == ZEBRA_ROUTE_STATIC && rib->distance == si->distance)
+ break;
+ if (! rib)
+ {
+ route_unlock_node (rn);
+ return;
+ }
+
+ /* Lookup nexthop. */
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ if (static_ipv6_nexthop_same (nexthop, si))
+ break;
+
+ /* Can't find nexthop. */
+ if (! nexthop)
+ {
+ route_unlock_node (rn);
+ return;
+ }
+
+ /* Check nexthop. */
+ if (rib->nexthop_num == 1)
+ {
+ rib_delnode (rn, rib);
+ rib_process (rn, rib);
+ newrib_free (rib);
+ route_unlock_node (rn);
+ }
+ else
+ {
+ rib_uninstall (rn, rib);
+ nexthop_delete (rib, nexthop);
+ nexthop_free (nexthop);
+ rib_process (rn, rib);
+ }
+
+ /* Unlock node. */
+ route_unlock_node (rn);
+}
+
+/* Add static route into static route configuration. */
+int
+static_ipv6_add (struct prefix_ipv6 *p, u_char type, struct in6_addr *gate,
+ char *ifname, u_char distance, int table)
+{
+ struct route_node *rn;
+ struct static_ipv6 *si;
+ struct static_ipv6 *pp;
+ struct static_ipv6 *cp;
+
+ /* Lookup static route prefix. */
+ rn = route_node_get (static_table_ipv6, (struct prefix *) p);
+
+ /* Do nothing if there is a same static route. */
+ for (si = rn->info; si; si = si->next)
+ {
+ if (distance == si->distance
+ && type == si->type
+ && (! gate || IPV6_ADDR_SAME (gate, &si->ipv6))
+ && (! ifname || strcmp (ifname, si->ifname) == 0))
+ {
+ route_unlock_node (rn);
+ return 0;
+ }
+ }
+
+ /* Make new static route structure. */
+ si = XMALLOC (MTYPE_STATIC_IPV6, sizeof (struct static_ipv6));
+ memset (si, 0, sizeof (struct static_ipv6));
+
+ si->type = type;
+ si->distance = distance;
+
+ switch (type)
+ {
+ case STATIC_IPV6_GATEWAY:
+ si->ipv6 = *gate;
+ break;
+ case STATIC_IPV6_IFNAME:
+ si->ifname = XSTRDUP (0, ifname);
+ break;
+ case STATIC_IPV6_GATEWAY_IFNAME:
+ si->ipv6 = *gate;
+ si->ifname = XSTRDUP (0, ifname);
+ break;
+ }
+
+ /* Add new static route information to the tree with sort by
+ distance value and gateway address. */
+ for (pp = NULL, cp = rn->info; cp; pp = cp, cp = cp->next)
+ {
+ if (si->distance < cp->distance)
+ break;
+ if (si->distance > cp->distance)
+ continue;
+ }
+
+ /* Make linked list. */
+ if (pp)
+ pp->next = si;
+ else
+ rn->info = si;
+ if (cp)
+ cp->prev = si;
+ si->prev = pp;
+ si->next = cp;
+
+ /* Install into rib. */
+ static_ipv6_install (p, si);
+
+ return 1;
+}
+
+/* Delete static route from static route configuration. */
+int
+static_ipv6_delete (struct prefix_ipv6 *p, u_char type, struct in6_addr *gate,
+ char *ifname, u_char distance, int table)
+{
+ struct route_node *rn;
+ struct static_ipv6 *si;
+
+ /* Lookup static route prefix. */
+ rn = route_node_lookup (static_table_ipv6, (struct prefix *) p);
+ if (! rn)
+ return 0;
+
+ /* Find same static route is the tree */
+ for (si = rn->info; si; si = si->next)
+ if (distance == si->distance
+ && type == si->type
+ && (! gate || IPV6_ADDR_SAME (gate, &si->ipv6))
+ && (! ifname || strcmp (ifname, si->ifname) == 0))
+ break;
+
+ /* Can't find static route. */
+ if (! si)
+ {
+ route_unlock_node (rn);
+ return 0;
+ }
+
+ /* Install into rib. */
+ static_ipv6_uninstall (p, si);
+
+ /* Unlink static route from linked list. */
+ if (si->prev)
+ si->prev->next = si->next;
+ else
+ rn->info = si->next;
+ if (si->next)
+ si->next->prev = si->prev;
+
+ /* Free static route configuration. */
+ XFREE (MTYPE_STATIC_IPV6, si);
+
+ return 1;
+}
+
+/* General fucntion for IPv6 static route. */
+int
+static_ipv6_func (struct vty *vty, int add_cmd, char *dest_str,
+ char *gate_str, char *ifname, char *distance_str)
+{
+ int ret;
+ u_char distance;
+ struct prefix_ipv6 p;
+ struct in6_addr *gate = NULL;
+ struct in6_addr gate_addr;
+ u_char type = 0;
+ int table = rtm_table_default;
+
+ ret = str2prefix_ipv6 (dest_str, &p);
+ if (ret <= 0)
+ {
+ vty_out (vty, "%% Malformed address%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ /* Apply mask for given prefix. */
+ apply_mask_ipv6 (&p);
+
+ /* Administrative distance. */
+ if (distance_str)
+ distance = atoi (distance_str);
+ else
+ distance = ZEBRA_STATIC_DISTANCE_DEFAULT;
+
+ /* When gateway is valid IPv6 addrees, then gate is treated as
+ nexthop address other case gate is treated as interface name. */
+ ret = inet_pton (AF_INET6, gate_str, &gate_addr);
+
+ if (ifname)
+ {
+ /* When ifname is specified. It must be come with gateway
+ address. */
+ if (ret != 1)
+ {
+ vty_out (vty, "%% Malformed address%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+ type = STATIC_IPV6_GATEWAY_IFNAME;
+ gate = &gate_addr;
+ }
+ else
+ {
+ if (ret == 1)
+ {
+ type = STATIC_IPV6_GATEWAY;
+ gate = &gate_addr;
+ }
+ else
+ {
+ type = STATIC_IPV6_IFNAME;
+ ifname = gate_str;
+ }
+ }
+
+ if (add_cmd)
+ static_ipv6_add (&p, type, gate, ifname, distance, table);
+ else
+ static_ipv6_delete (&p, type, gate, ifname, distance, table);
+
+ return CMD_SUCCESS;
+}
+
+/* Write IPv6 static route configuration. */
+int
+static_ipv6_write (struct vty *vty)
+{
+ struct route_node *rn;
+ struct static_ipv6 *si;
+ int write;
+ char buf[BUFSIZ];
+
+ write = 0;
+
+ for (rn = route_top (static_table_ipv6); rn; rn = route_next (rn))
+ for (si = rn->info; si; si = si->next)
+ {
+ vty_out (vty, "ipv6 route %s/%d",
+ inet_ntop (AF_INET6, &rn->p.u.prefix6, buf, BUFSIZ),
+ rn->p.prefixlen);
+
+ switch (si->type)
+ {
+ case STATIC_IPV6_GATEWAY:
+ vty_out (vty, " %s", inet_ntop (AF_INET6, &si->ipv6, buf, BUFSIZ));
+ break;
+ case STATIC_IPV6_IFNAME:
+ vty_out (vty, " %s", si->ifname);
+ break;
+ case STATIC_IPV6_GATEWAY_IFNAME:
+ vty_out (vty, " %s %s",
+ inet_ntop (AF_INET6, &si->ipv6, buf, BUFSIZ), si->ifname);
+ break;
+ }
+
+ if (si->distance != ZEBRA_STATIC_DISTANCE_DEFAULT)
+ vty_out (vty, " %d", si->distance);
+ vty_out (vty, "%s", VTY_NEWLINE);
+
+ write = 1;
+ }
+ return write;
+}
+
+DEFUN (ipv6_route,
+ ipv6_route_cmd,
+ "ipv6 route X:X::X:X/M (X:X::X:X|INTERFACE)",
+ IP_STR
+ "Establish static routes\n"
+ "IPv6 destination prefix (e.g. 3ffe:506::/32)\n"
+ "IPv6 gateway address\n"
+ "IPv6 gateway interface name\n")
+{
+ return static_ipv6_func (vty, 1, argv[0], argv[1], NULL, NULL);
+}
+
+DEFUN (ipv6_route_ifname,
+ ipv6_route_ifname_cmd,
+ "ipv6 route X:X::X:X/M X:X::X:X INTERFACE",
+ IP_STR
+ "Establish static routes\n"
+ "IPv6 destination prefix (e.g. 3ffe:506::/32)\n"
+ "IPv6 gateway address\n"
+ "IPv6 gateway interface name\n")
+{
+ return static_ipv6_func (vty, 1, argv[0], argv[1], argv[2], NULL);
+}
+
+DEFUN (ipv6_route_pref,
+ ipv6_route_pref_cmd,
+ "ipv6 route X:X::X:X/M (X:X::X:X|INTERFACE) <1-255>",
+ IP_STR
+ "Establish static routes\n"
+ "IPv6 destination prefix (e.g. 3ffe:506::/32)\n"
+ "IPv6 gateway address\n"
+ "IPv6 gateway interface name\n"
+ "Distance value for this prefix\n")
+{
+ return static_ipv6_func (vty, 1, argv[0], argv[1], NULL, argv[2]);
+}
+
+DEFUN (ipv6_route_ifname_pref,
+ ipv6_route_ifname_pref_cmd,
+ "ipv6 route X:X::X:X/M X:X::X:X INTERFACE <1-255>",
+ IP_STR
+ "Establish static routes\n"
+ "IPv6 destination prefix (e.g. 3ffe:506::/32)\n"
+ "IPv6 gateway address\n"
+ "IPv6 gateway interface name\n"
+ "Distance value for this prefix\n")
+{
+ return static_ipv6_func (vty, 1, argv[0], argv[1], argv[2], argv[3]);
+}
+
+DEFUN (no_ipv6_route,
+ no_ipv6_route_cmd,
+ "no ipv6 route X:X::X:X/M (X:X::X:X|INTERFACE)",
+ NO_STR
+ IP_STR
+ "Establish static routes\n"
+ "IPv6 destination prefix (e.g. 3ffe:506::/32)\n"
+ "IPv6 gateway address\n"
+ "IPv6 gateway interface name\n")
+{
+ return static_ipv6_func (vty, 0, argv[0], argv[1], NULL, NULL);
+}
+
+DEFUN (no_ipv6_route_ifname,
+ no_ipv6_route_ifname_cmd,
+ "no ipv6 route X:X::X:X/M X:X::X:X INTERFACE",
+ NO_STR
+ IP_STR
+ "Establish static routes\n"
+ "IPv6 destination prefix (e.g. 3ffe:506::/32)\n"
+ "IPv6 gateway address\n"
+ "IPv6 gateway interface name\n")
+{
+ return static_ipv6_func (vty, 0, argv[0], argv[1], argv[2], NULL);
+}
+
+DEFUN (no_ipv6_route_pref,
+ no_ipv6_route_pref_cmd,
+ "no ipv6 route X:X::X:X/M (X:X::X:X|INTERFACE) <1-255>",
+ NO_STR
+ IP_STR
+ "Establish static routes\n"
+ "IPv6 destination prefix (e.g. 3ffe:506::/32)\n"
+ "IPv6 gateway address\n"
+ "IPv6 gateway interface name\n"
+ "Distance value for this prefix\n")
+{
+ return static_ipv6_func (vty, 0, argv[0], argv[1], NULL, argv[2]);
+}
+
+DEFUN (no_ipv6_route_ifname_pref,
+ no_ipv6_route_ifname_pref_cmd,
+ "no ipv6 route X:X::X:X/M X:X::X:X INTERFACE <1-255>",
+ NO_STR
+ IP_STR
+ "Establish static routes\n"
+ "IPv6 destination prefix (e.g. 3ffe:506::/32)\n"
+ "IPv6 gateway address\n"
+ "IPv6 gateway interface name\n"
+ "Distance value for this prefix\n")
+{
+ return static_ipv6_func (vty, 0, argv[0], argv[1], argv[2], argv[3]);
+}
+
+/* New RIB. Detailed information for IPv4 route. */
+void
+vty_show_ipv6_route_detail (struct vty *vty, struct route_node *rn)
+{
+ struct rib *rib;
+ struct nexthop *nexthop;
+ char buf[BUFSIZ];
+
+ for (rib = rn->info; rib; rib = rib->next)
+ {
+ vty_out (vty, "Routing entry for %s/%d%s",
+ inet_ntop (AF_INET6, &rn->p.u.prefix6, buf, BUFSIZ),
+ rn->p.prefixlen,
+ VTY_NEWLINE);
+ vty_out (vty, " Known via \"%s\"", route_info[rib->type].str);
+ vty_out (vty, ", distance %d, metric %d", rib->distance, rib->metric);
+ if (CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED))
+ vty_out (vty, ", best");
+ if (rib->refcnt)
+ vty_out (vty, ", refcnt %ld", rib->refcnt);
+ vty_out (vty, "%s", VTY_NEWLINE);
+
+#define ONE_DAY_SECOND 60*60*24
+#define ONE_WEEK_SECOND 60*60*24*7
+ if (rib->type == ZEBRA_ROUTE_RIPNG
+ || rib->type == ZEBRA_ROUTE_OSPF6
+ || rib->type == ZEBRA_ROUTE_ISIS
+ || rib->type == ZEBRA_ROUTE_BGP)
+ {
+ time_t uptime;
+ struct tm *tm;
+
+ uptime = time (NULL);
+ uptime -= rib->uptime;
+ tm = gmtime (&uptime);
+
+ vty_out (vty, " Last update ");
+
+ if (uptime < ONE_DAY_SECOND)
+ vty_out (vty, "%02d:%02d:%02d",
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ else if (uptime < ONE_WEEK_SECOND)
+ vty_out (vty, "%dd%02dh%02dm",
+ tm->tm_yday, tm->tm_hour, tm->tm_min);
+ else
+ vty_out (vty, "%02dw%dd%02dh",
+ tm->tm_yday/7,
+ tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour);
+ vty_out (vty, " ago%s", VTY_NEWLINE);
+ }
+
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ {
+ vty_out (vty, " %c",
+ CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB) ? '*' : ' ');
+
+ switch (nexthop->type)
+ {
+ case NEXTHOP_TYPE_IPV6:
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ case NEXTHOP_TYPE_IPV6_IFNAME:
+ vty_out (vty, " %s",
+ inet_ntop (AF_INET6, &nexthop->gate.ipv6, buf, BUFSIZ));
+ if (nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME)
+ vty_out (vty, ", %s", nexthop->ifname);
+ else if (nexthop->ifindex)
+ vty_out (vty, ", via %s", ifindex2ifname (nexthop->ifindex));
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ vty_out (vty, " directly connected, %s",
+ ifindex2ifname (nexthop->ifindex));
+ break;
+ case NEXTHOP_TYPE_IFNAME:
+ vty_out (vty, " directly connected, %s",
+ nexthop->ifname);
+ break;
+ default:
+ break;
+ }
+ if (! CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
+ vty_out (vty, " inactive");
+
+ if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
+ {
+ vty_out (vty, " (recursive");
+
+ switch (nexthop->rtype)
+ {
+ case NEXTHOP_TYPE_IPV6:
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ case NEXTHOP_TYPE_IPV6_IFNAME:
+ vty_out (vty, " via %s)",
+ inet_ntop (AF_INET6, &nexthop->rgate.ipv6,
+ buf, BUFSIZ));
+ if (nexthop->rifindex)
+ vty_out (vty, ", %s", ifindex2ifname (nexthop->rifindex));
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ case NEXTHOP_TYPE_IFNAME:
+ vty_out (vty, " is directly connected, %s)",
+ ifindex2ifname (nexthop->rifindex));
+ break;
+ default:
+ break;
+ }
+ }
+ vty_out (vty, "%s", VTY_NEWLINE);
+ }
+ vty_out (vty, "%s", VTY_NEWLINE);
+ }
+}
+
+void
+vty_show_ipv6_route (struct vty *vty, struct route_node *rn,
+ struct rib *rib)
+{
+ struct nexthop *nexthop;
+ int len = 0;
+ char buf[BUFSIZ];
+
+ /* Nexthop information. */
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ {
+ if (nexthop == rib->nexthop)
+ {
+ /* Prefix information. */
+ len = vty_out (vty, "%c%c%c %s/%d",
+ route_info[rib->type].c,
+ CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED)
+ ? '>' : ' ',
+ CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)
+ ? '*' : ' ',
+ inet_ntop (AF_INET6, &rn->p.u.prefix6, buf, BUFSIZ),
+ rn->p.prefixlen);
+
+ /* Distance and metric display. */
+ if (rib->type != ZEBRA_ROUTE_CONNECT
+ && rib->type != ZEBRA_ROUTE_KERNEL)
+ len += vty_out (vty, " [%d/%d]", rib->distance,
+ rib->metric);
+ }
+ else
+ vty_out (vty, " %c%*c",
+ CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)
+ ? '*' : ' ',
+ len - 3, ' ');
+
+ switch (nexthop->type)
+ {
+ case NEXTHOP_TYPE_IPV6:
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ case NEXTHOP_TYPE_IPV6_IFNAME:
+ vty_out (vty, " via %s",
+ inet_ntop (AF_INET6, &nexthop->gate.ipv6, buf, BUFSIZ));
+ if (nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME)
+ vty_out (vty, ", %s", nexthop->ifname);
+ else if (nexthop->ifindex)
+ vty_out (vty, ", %s", ifindex2ifname (nexthop->ifindex));
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ vty_out (vty, " is directly connected, %s",
+ ifindex2ifname (nexthop->ifindex));
+ break;
+ case NEXTHOP_TYPE_IFNAME:
+ vty_out (vty, " is directly connected, %s",
+ nexthop->ifname);
+ break;
+ default:
+ break;
+ }
+ if (! CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
+ vty_out (vty, " inactive");
+
+ if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
+ {
+ vty_out (vty, " (recursive");
+
+ switch (nexthop->rtype)
+ {
+ case NEXTHOP_TYPE_IPV6:
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ case NEXTHOP_TYPE_IPV6_IFNAME:
+ vty_out (vty, " via %s)",
+ inet_ntop (AF_INET6, &nexthop->rgate.ipv6,
+ buf, BUFSIZ));
+ if (nexthop->rifindex)
+ vty_out (vty, ", %s", ifindex2ifname (nexthop->rifindex));
+ break;
+ case NEXTHOP_TYPE_IFINDEX:
+ case NEXTHOP_TYPE_IFNAME:
+ vty_out (vty, " is directly connected, %s)",
+ ifindex2ifname (nexthop->rifindex));
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (rib->type == ZEBRA_ROUTE_RIPNG
+ || rib->type == ZEBRA_ROUTE_OSPF6
+ || rib->type == ZEBRA_ROUTE_ISIS
+ || rib->type == ZEBRA_ROUTE_BGP)
+ {
+ time_t uptime;
+ struct tm *tm;
+
+ uptime = time (NULL);
+ uptime -= rib->uptime;
+ tm = gmtime (&uptime);
+
+#define ONE_DAY_SECOND 60*60*24
+#define ONE_WEEK_SECOND 60*60*24*7
+
+ if (uptime < ONE_DAY_SECOND)
+ vty_out (vty, ", %02d:%02d:%02d",
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ else if (uptime < ONE_WEEK_SECOND)
+ vty_out (vty, ", %dd%02dh%02dm",
+ tm->tm_yday, tm->tm_hour, tm->tm_min);
+ else
+ vty_out (vty, ", %02dw%dd%02dh",
+ tm->tm_yday/7,
+ tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour);
+ }
+ vty_out (vty, "%s", VTY_NEWLINE);
+ }
+}
+
+#define SHOW_ROUTE_V6_HEADER "Codes: K - kernel route, C - connected, S - static, R - RIPng, O - OSPFv3, I - IS-IS,%s B - BGP, * - FIB route.%s%s"
+
+DEFUN (show_ipv6_route,
+ show_ipv6_route_cmd,
+ "show ipv6 route",
+ SHOW_STR
+ IP_STR
+ "IPv6 routing table\n")
+{
+ struct route_node *rn;
+ struct rib *rib;
+ int first = 1;
+
+ /* Show all IPv6 route. */
+ for (rn = route_top (rib_table_ipv6); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = rib->next)
+ {
+ if (first)
+ {
+ vty_out (vty, SHOW_ROUTE_V6_HEADER, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE);
+ first = 0;
+ }
+ vty_show_ipv6_route (vty, rn, rib);
+ }
+ return CMD_SUCCESS;
+}
+
+DEFUN (show_ipv6_route_prefix_longer,
+ show_ipv6_route_prefix_longer_cmd,
+ "show ipv6 route X:X::X:X/M longer-prefixes",
+ SHOW_STR
+ IP_STR
+ "IPv6 routing table\n"
+ "IPv6 prefix\n"
+ "Show route matching the specified Network/Mask pair only\n")
+{
+ struct route_node *rn;
+ struct rib *rib;
+ struct prefix p;
+ int ret;
+ int first = 1;
+
+ ret = str2prefix (argv[0], &p);
+ if (! ret)
+ {
+ vty_out (vty, "%% Malformed Prefix%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ /* Show matched type IPv6 routes. */
+ for (rn = route_top (rib_table_ipv6); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = rib->next)
+ if (prefix_match (&p, &rn->p))
+ {
+ if (first)
+ {
+ vty_out (vty, SHOW_ROUTE_V6_HEADER, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE);
+ first = 0;
+ }
+ vty_show_ipv6_route (vty, rn, rib);
+ }
+ return CMD_SUCCESS;
+}
+
+DEFUN (show_ipv6_route_protocol,
+ show_ipv6_route_protocol_cmd,
+ "show ipv6 route (bgp|connected|kernel|ospf6|isis|ripng|static)",
+ SHOW_STR
+ IP_STR
+ "IP routing table\n"
+ "Border Gateway Protocol (BGP)\n"
+ "Connected\n"
+ "Kernel\n"
+ "Open Shortest Path First (OSPFv3)\n"
+ "ISO IS-IS (ISIS)\n"
+ "Routing Information Protocol (RIPng)\n"
+ "Static routes\n")
+{
+ int type;
+ struct route_node *rn;
+ struct rib *rib;
+ int first = 1;
+
+ if (strncmp (argv[0], "b", 1) == 0)
+ type = ZEBRA_ROUTE_BGP;
+ else if (strncmp (argv[0], "c", 1) == 0)
+ type = ZEBRA_ROUTE_CONNECT;
+ else if (strncmp (argv[0], "k", 1) ==0)
+ type = ZEBRA_ROUTE_KERNEL;
+ else if (strncmp (argv[0], "o", 1) == 0)
+ type = ZEBRA_ROUTE_OSPF6;
+ else if (strncmp (argv[0], "i", 1) == 0)
+ type = ZEBRA_ROUTE_ISIS;
+ else if (strncmp (argv[0], "r", 1) == 0)
+ type = ZEBRA_ROUTE_RIPNG;
+ else if (strncmp (argv[0], "s", 1) == 0)
+ type = ZEBRA_ROUTE_STATIC;
+ else
+ {
+ vty_out (vty, "Unknown route type%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ /* Show matched type IPv6 routes. */
+ for (rn = route_top (rib_table_ipv6); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = rib->next)
+ if (rib->type == type)
+ {
+ if (first)
+ {
+ vty_out (vty, SHOW_ROUTE_V6_HEADER, VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE);
+ first = 0;
+ }
+ vty_show_ipv6_route (vty, rn, rib);
+ }
+ return CMD_SUCCESS;
+}
+
+
+DEFUN (show_ipv6_route_addr,
+ show_ipv6_route_addr_cmd,
+ "show ipv6 route X:X::X:X",
+ SHOW_STR
+ IP_STR
+ "IPv6 routing table\n"
+ "IPv6 Address\n")
+{
+ int ret;
+ struct prefix_ipv6 p;
+ struct route_node *rn;
+
+ ret = str2prefix_ipv6 (argv[0], &p);
+ if (ret <= 0)
+ {
+ vty_out (vty, "Malformed IPv6 address%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ rn = route_node_match (rib_table_ipv6, (struct prefix *) &p);
+ if (! rn)
+ {
+ vty_out (vty, "%% Network not in table%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ vty_show_ipv6_route_detail (vty, rn);
+
+ route_unlock_node (rn);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN (show_ipv6_route_prefix,
+ show_ipv6_route_prefix_cmd,
+ "show ipv6 route X:X::X:X/M",
+ SHOW_STR
+ IP_STR
+ "IPv6 routing table\n"
+ "IPv6 prefix\n")
+{
+ int ret;
+ struct prefix_ipv6 p;
+ struct route_node *rn;
+
+ ret = str2prefix_ipv6 (argv[0], &p);
+ if (ret <= 0)
+ {
+ vty_out (vty, "Malformed IPv6 prefix%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ rn = route_node_match (rib_table_ipv6, (struct prefix *) &p);
+ if (! rn || rn->p.prefixlen != p.prefixlen)
+ {
+ vty_out (vty, "%% Network not in table%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ vty_show_ipv6_route_detail (vty, rn);
+
+ route_unlock_node (rn);
+
+ return CMD_SUCCESS;
+}
+#endif /* HAVE_IPV6 */
+
+/* RIB update function. */
+void
+rib_update ()
+{
+ struct route_node *rn;
+
+ for (rn = route_top (rib_table_ipv4); rn; rn = route_next (rn))
+ /* Update reachability. */
+ rib_process (rn, NULL);
+
+#ifdef HAVE_IPV6
+ for (rn = route_top (rib_table_ipv6); rn; rn = route_next (rn))
+ rib_process (rn, NULL);
+#endif /* HAVE_IPV6 */
+}
+
+/* Interface goes up. */
+void
+rib_if_up (struct interface *ifp)
+{
+ rib_update ();
+}
+
+/* Interface goes down. */
+void
+rib_if_down (struct interface *ifp)
+{
+ rib_update ();
+}
+
+/* Clean up routines. */
+void
+rib_weed_table (struct route_table *rib_table)
+{
+ struct route_node *rn;
+ struct rib *rib;
+ struct rib *next;
+
+ for (rn = route_top (rib_table); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = next)
+ {
+ next = rib->next;
+
+ if (rib->table != rtm_table_default &&
+ rib->table != RT_TABLE_MAIN)
+ {
+ rib_delnode (rn, rib);
+ newrib_free (rib);
+ route_unlock_node (rn);
+ }
+ }
+}
+
+/* Delete all routes from unmanaged tables. */
+void
+rib_weed_tables ()
+{
+ rib_weed_table (rib_table_ipv4);
+#ifdef HAVE_IPV6
+ rib_weed_table (rib_table_ipv6);
+#endif /* HAVE_IPV6 */
+}
+
+void
+rib_sweep_table (struct route_table *rib_table)
+{
+ struct route_node *rn;
+ struct rib *rib;
+ struct rib *next;
+ int ret = 0;
+
+ for (rn = route_top (rib_table); rn; rn = route_next (rn))
+ for (rib = rn->info; rib; rib = next)
+ {
+ next = rib->next;
+
+ if ((rib->type == ZEBRA_ROUTE_KERNEL) &&
+ CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELFROUTE))
+ {
+ ret = rib_uninstall_kernel (rn, rib);
+
+ if (! ret)
+ {
+ rib_delnode (rn, rib);
+ newrib_free (rib);
+ route_unlock_node (rn);
+ }
+ }
+ }
+}
+
+void
+rib_sweep_route ()
+{
+ rib_sweep_table (rib_table_ipv4);
+#ifdef HAVE_IPV6
+ rib_sweep_table (rib_table_ipv6);
+#endif /* HAVE_IPV6 */
+}
+
+/* Close rib when zebra terminates. */
+void
+rib_close ()
+{
+ rib_close_ipv4 ();
+#ifdef HAVE_IPV6
+ rib_close_ipv6 ();
+#endif /* HAVE_IPV6 */
+}
+
+/* Static ip route configuration write function. */
+int
+config_write_ip (struct vty *vty)
+{
+ int write = 0;
+
+ write += static_ipv4_write (vty);
+#ifdef HAVE_IPV6
+ write += static_ipv6_write (vty);
+#endif /* HAVE_IPV6 */
+
+ return write;
+}
+
+/* IP node for static routes. */
+struct cmd_node ip_node =
+{
+ IP_NODE,
+ "", /* This node has no interface. */
+ 1
+};
+
+/* Routing information base initialize. */
+void
+rib_init ()
+{
+ install_node (&ip_node, config_write_ip);
+
+ rib_table_ipv4 = route_table_init ();
+ static_table_ipv4 = route_table_init ();
+
+ install_element (VIEW_NODE, &show_ip_route_cmd);
+ install_element (VIEW_NODE, &show_ip_route_addr_cmd);
+ install_element (VIEW_NODE, &show_ip_route_prefix_cmd);
+ install_element (VIEW_NODE, &show_ip_route_prefix_longer_cmd);
+ install_element (VIEW_NODE, &show_ip_route_protocol_cmd);
+ install_element (VIEW_NODE, &show_ip_route_supernets_cmd);
+ install_element (ENABLE_NODE, &show_ip_route_cmd);
+ install_element (ENABLE_NODE, &show_ip_route_addr_cmd);
+ install_element (ENABLE_NODE, &show_ip_route_prefix_cmd);
+ install_element (ENABLE_NODE, &show_ip_route_prefix_longer_cmd);
+ install_element (ENABLE_NODE, &show_ip_route_protocol_cmd);
+ install_element (ENABLE_NODE, &show_ip_route_supernets_cmd);
+ install_element (CONFIG_NODE, &ip_route_cmd);
+ install_element (CONFIG_NODE, &ip_route_mask_cmd);
+ install_element (CONFIG_NODE, &no_ip_route_cmd);
+ install_element (CONFIG_NODE, &no_ip_route_mask_cmd);
+ install_element (CONFIG_NODE, &ip_route_pref_cmd);
+ install_element (CONFIG_NODE, &ip_route_mask_pref_cmd);
+ install_element (CONFIG_NODE, &no_ip_route_pref_cmd);
+ install_element (CONFIG_NODE, &no_ip_route_mask_pref_cmd);
+
+#ifdef HAVE_IPV6
+ rib_table_ipv6 = route_table_init ();
+ static_table_ipv6 = route_table_init ();
+
+ install_element (CONFIG_NODE, &ipv6_route_cmd);
+ install_element (CONFIG_NODE, &ipv6_route_ifname_cmd);
+ install_element (CONFIG_NODE, &no_ipv6_route_cmd);
+ install_element (CONFIG_NODE, &no_ipv6_route_ifname_cmd);
+ install_element (CONFIG_NODE, &ipv6_route_pref_cmd);
+ install_element (CONFIG_NODE, &ipv6_route_ifname_pref_cmd);
+ install_element (CONFIG_NODE, &no_ipv6_route_pref_cmd);
+ install_element (CONFIG_NODE, &no_ipv6_route_ifname_pref_cmd);
+ install_element (VIEW_NODE, &show_ipv6_route_cmd);
+ install_element (VIEW_NODE, &show_ipv6_route_protocol_cmd);
+ install_element (VIEW_NODE, &show_ipv6_route_addr_cmd);
+ install_element (VIEW_NODE, &show_ipv6_route_prefix_cmd);
+ install_element (VIEW_NODE, &show_ipv6_route_prefix_longer_cmd);
+ install_element (ENABLE_NODE, &show_ipv6_route_cmd);
+ install_element (ENABLE_NODE, &show_ipv6_route_protocol_cmd);
+ install_element (ENABLE_NODE, &show_ipv6_route_addr_cmd);
+ install_element (ENABLE_NODE, &show_ipv6_route_prefix_cmd);
+ install_element (ENABLE_NODE, &show_ipv6_route_prefix_longer_cmd);
+#endif /* HAVE_IPV6 */
+}