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-rw-r--r--ripngd/ripngd.c1200
1 files changed, 875 insertions, 325 deletions
diff --git a/ripngd/ripngd.c b/ripngd/ripngd.c
index e7cefaf0..a4d119dc 100644
--- a/ripngd/ripngd.c
+++ b/ripngd/ripngd.c
@@ -21,9 +21,6 @@
#include <zebra.h>
-/* For struct udphdr. */
-#include <netinet/udp.h>
-
#include "prefix.h"
#include "filter.h"
#include "log.h"
@@ -42,8 +39,7 @@
#include "ripngd/ripngd.h"
#include "ripngd/ripng_route.h"
#include "ripngd/ripng_debug.h"
-
-#define min(a, b) ((a) < (b) ? (a) : (b))
+#include "ripngd/ripng_nexthop.h"
/* RIPng structure which includes many parameters related to RIPng
protocol. If ripng couldn't active or ripng doesn't configured,
@@ -54,13 +50,11 @@ enum
{
ripng_all_route,
ripng_changed_route,
- ripng_split_horizon,
- ripng_no_split_horizon
};
/* Prototypes. */
void
-ripng_output_process (struct interface *, struct sockaddr_in6 *, int, int);
+ripng_output_process (struct interface *, struct sockaddr_in6 *, int);
int
ripng_triggered_update (struct thread *);
@@ -87,6 +81,12 @@ inet6_ntop (struct in6_addr *p)
return buf;
}
+int
+ripng_route_rte (struct ripng_info *rinfo)
+{
+ return (rinfo->type == ZEBRA_ROUTE_RIPNG && rinfo->sub_type == RIPNG_ROUTE_RTE);
+}
+
/* Allocate new ripng information. */
struct ripng_info *
ripng_info_new ()
@@ -175,12 +175,12 @@ ripng_send_packet (caddr_t buf, int bufsize, struct sockaddr_in6 *to,
struct in6_pktinfo *pkt;
struct sockaddr_in6 addr;
-#ifdef DEBUG
- if (to)
- zlog_info ("DEBUG RIPng: send to %s", inet6_ntop (&to->sin6_addr));
- zlog_info ("DEBUG RIPng: send if %s", ifp->name);
- zlog_info ("DEBUG RIPng: send packet size %d", bufsize);
-#endif /* DEBUG */
+ if (IS_RIPNG_DEBUG_SEND) {
+ if (to)
+ zlog_info ("send to %s", inet6_ntop (&to->sin6_addr));
+ zlog_info (" send interface %s", ifp->name);
+ zlog_info (" send packet size %d", bufsize);
+ }
memset (&addr, 0, sizeof (struct sockaddr_in6));
addr.sin6_family = AF_INET6;
@@ -222,8 +222,13 @@ ripng_send_packet (caddr_t buf, int bufsize, struct sockaddr_in6 *to,
ret = sendmsg (ripng->sock, &msg, 0);
- if (ret < 0)
- zlog_warn ("RIPng send fail on %s: %s", ifp->name, strerror (errno));
+ if (ret < 0) {
+ if (to)
+ zlog_err ("RIPng send fail on %s to %s: %s", ifp->name,
+ inet6_ntop (&to->sin6_addr), strerror (errno));
+ else
+ zlog_err ("RIPng send fail on %s: %s", ifp->name, strerror (errno));
+ }
return ret;
}
@@ -420,14 +425,6 @@ ripng_garbage_collect (struct thread *t)
/* Get route_node pointer. */
rp = rinfo->rp;
- /* Delete this route from the kernel. */
- ripng_zebra_ipv6_delete ((struct prefix_ipv6 *)&rp->p,
- &rinfo->nexthop, rinfo->ifindex);
- rinfo->flags &= ~RIPNG_RTF_FIB;
-
- /* Aggregate count decrement. */
- ripng_aggregate_decrement (rp, rinfo);
-
/* Unlock route_node. */
rp->info = NULL;
route_unlock_node (rp);
@@ -455,9 +452,16 @@ ripng_timeout (struct thread *t)
RIPNG_TIMER_ON (rinfo->t_garbage_collect, ripng_garbage_collect,
ripng->garbage_time);
+ /* Delete this route from the kernel. */
+ ripng_zebra_ipv6_delete ((struct prefix_ipv6 *)&rp->p, &rinfo->nexthop,
+ rinfo->ifindex);
/* - The metric for the route is set to 16 (infinity). This causes
the route to be removed from service. */
rinfo->metric = RIPNG_METRIC_INFINITY;
+ rinfo->flags &= ~RIPNG_RTF_FIB;
+
+ /* Aggregate count decrement. */
+ ripng_aggregate_decrement (rp, rinfo);
/* - The route change flag is to indicate that this entry has been
changed. */
@@ -479,12 +483,154 @@ ripng_timeout_update (struct ripng_info *rinfo)
}
}
+int
+ripng_incoming_filter (struct prefix_ipv6 *p, struct ripng_interface *ri)
+{
+ struct distribute *dist;
+ struct access_list *alist;
+ struct prefix_list *plist;
+
+ /* Input distribute-list filtering. */
+ if (ri->list[RIPNG_FILTER_IN])
+ {
+ if (access_list_apply (ri->list[RIPNG_FILTER_IN],
+ (struct prefix *) p) == FILTER_DENY)
+ {
+ if (IS_RIPNG_DEBUG_PACKET)
+ zlog_info ("%s/%d filtered by distribute in",
+ inet6_ntop (&p->prefix), p->prefixlen);
+ return -1;
+ }
+ }
+ if (ri->prefix[RIPNG_FILTER_IN])
+ {
+ if (prefix_list_apply (ri->prefix[RIPNG_FILTER_IN],
+ (struct prefix *) p) == PREFIX_DENY)
+ {
+ if (IS_RIPNG_DEBUG_PACKET)
+ zlog_info ("%s/%d filtered by prefix-list in",
+ inet6_ntop (&p->prefix), p->prefixlen);
+ return -1;
+ }
+ }
+
+ /* All interface filter check. */
+ dist = distribute_lookup (NULL);
+ if (dist)
+ {
+ if (dist->list[DISTRIBUTE_IN])
+ {
+ alist = access_list_lookup (AFI_IP6, dist->list[DISTRIBUTE_IN]);
+
+ if (alist)
+ {
+ if (access_list_apply (alist,
+ (struct prefix *) p) == FILTER_DENY)
+ {
+ if (IS_RIPNG_DEBUG_PACKET)
+ zlog_info ("%s/%d filtered by distribute in",
+ inet6_ntop (&p->prefix), p->prefixlen);
+ return -1;
+ }
+ }
+ }
+ if (dist->prefix[DISTRIBUTE_IN])
+ {
+ plist = prefix_list_lookup (AFI_IP6, dist->prefix[DISTRIBUTE_IN]);
+
+ if (plist)
+ {
+ if (prefix_list_apply (plist,
+ (struct prefix *) p) == PREFIX_DENY)
+ {
+ if (IS_RIPNG_DEBUG_PACKET)
+ zlog_info ("%s/%d filtered by prefix-list in",
+ inet6_ntop (&p->prefix), p->prefixlen);
+ return -1;
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+int
+ripng_outgoing_filter (struct prefix_ipv6 *p, struct ripng_interface *ri)
+{
+ struct distribute *dist;
+ struct access_list *alist;
+ struct prefix_list *plist;
+
+ if (ri->list[RIPNG_FILTER_OUT])
+ {
+ if (access_list_apply (ri->list[RIPNG_FILTER_OUT],
+ (struct prefix *) p) == FILTER_DENY)
+ {
+ if (IS_RIPNG_DEBUG_PACKET)
+ zlog_info ("%s/%d is filtered by distribute out",
+ inet6_ntop (&p->prefix), p->prefixlen);
+ return -1;
+ }
+ }
+ if (ri->prefix[RIPNG_FILTER_OUT])
+ {
+ if (prefix_list_apply (ri->prefix[RIPNG_FILTER_OUT],
+ (struct prefix *) p) == PREFIX_DENY)
+ {
+ if (IS_RIPNG_DEBUG_PACKET)
+ zlog_info ("%s/%d is filtered by prefix-list out",
+ inet6_ntop (&p->prefix), p->prefixlen);
+ return -1;
+ }
+ }
+
+ /* All interface filter check. */
+ dist = distribute_lookup (NULL);
+ if (dist)
+ {
+ if (dist->list[DISTRIBUTE_OUT])
+ {
+ alist = access_list_lookup (AFI_IP6, dist->list[DISTRIBUTE_OUT]);
+
+ if (alist)
+ {
+ if (access_list_apply (alist,
+ (struct prefix *) p) == FILTER_DENY)
+ {
+ if (IS_RIPNG_DEBUG_PACKET)
+ zlog_info ("%s/%d filtered by distribute out",
+ inet6_ntop (&p->prefix), p->prefixlen);
+ return -1;
+ }
+ }
+ }
+ if (dist->prefix[DISTRIBUTE_OUT])
+ {
+ plist = prefix_list_lookup (AFI_IP6, dist->prefix[DISTRIBUTE_OUT]);
+
+ if (plist)
+ {
+ if (prefix_list_apply (plist,
+ (struct prefix *) p) == PREFIX_DENY)
+ {
+ if (IS_RIPNG_DEBUG_PACKET)
+ zlog_info ("%s/%d filtered by prefix-list out",
+ inet6_ntop (&p->prefix), p->prefixlen);
+ return -1;
+ }
+ }
+ }
+ }
+ return 0;
+}
+
/* Process RIPng route according to RFC2080. */
void
ripng_route_process (struct rte *rte, struct sockaddr_in6 *from,
struct ripng_nexthop *ripng_nexthop,
struct interface *ifp)
{
+ int ret;
struct prefix_ipv6 p;
struct route_node *rp;
struct ripng_info *rinfo;
@@ -508,26 +654,9 @@ ripng_route_process (struct rte *rte, struct sockaddr_in6 *from,
/* Apply input filters. */
ri = ifp->info;
- if (ri->list[RIPNG_FILTER_IN])
- {
- if (access_list_apply (ri->list[RIPNG_FILTER_IN], &p) == FILTER_DENY)
- {
- if (IS_RIPNG_DEBUG_PACKET)
- zlog_info ("RIPng %s/%d is filtered by distribute in",
- inet6_ntop (&p.prefix), p.prefixlen);
- return;
- }
- }
- if (ri->prefix[RIPNG_FILTER_IN])
- {
- if (prefix_list_apply (ri->prefix[RIPNG_FILTER_IN], &p) == PREFIX_DENY)
- {
- if (IS_RIPNG_DEBUG_PACKET)
- zlog_info ("RIPng %s/%d is filtered by prefix-list in",
- inet6_ntop (&p.prefix), p.prefixlen);
- return;
- }
- }
+ ret = ripng_incoming_filter (&p, ri);
+ if (ret < 0)
+ return;
/* Modify entry. */
if (ri->routemap[RIPNG_FILTER_IN])
@@ -536,7 +665,17 @@ ripng_route_process (struct rte *rte, struct sockaddr_in6 *from,
struct ripng_info newinfo;
memset (&newinfo, 0, sizeof (struct ripng_info));
+ newinfo.type = ZEBRA_ROUTE_RIPNG;
+ newinfo.sub_type = RIPNG_ROUTE_RTE;
+ if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS)
+ newinfo.nexthop = ripng_nexthop->address;
+ else
+ newinfo.nexthop = from->sin6_addr;
+ newinfo.from = from->sin6_addr;
+ newinfo.ifindex = ifp->ifindex;
newinfo.metric = rte->metric;
+ newinfo.metric_out = rte->metric; /* XXX */
+ newinfo.tag = ntohs(rte->tag); /* XXX */
ret = route_map_apply (ri->routemap[RIPNG_FILTER_IN],
(struct prefix *)&p, RMAP_RIPNG, &newinfo);
@@ -549,9 +688,45 @@ ripng_route_process (struct rte *rte, struct sockaddr_in6 *from,
return;
}
- rte->metric = newinfo.metric;
+ /* Get back the object */
+ if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS) {
+ if (! IPV6_ADDR_SAME(&newinfo.nexthop, &ripng_nexthop->address) ) {
+ /* the nexthop get changed by the routemap */
+ if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop))
+ ripng_nexthop->address = newinfo.nexthop;
+ else
+ ripng_nexthop->address = in6addr_any;
+ }
+ } else {
+ if (! IPV6_ADDR_SAME(&newinfo.nexthop, &from->sin6_addr) ) {
+ /* the nexthop get changed by the routemap */
+ if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop)) {
+ ripng_nexthop->flag = RIPNG_NEXTHOP_ADDRESS;
+ ripng_nexthop->address = newinfo.nexthop;
+ }
+ }
+ }
+ rte->tag = htons(newinfo.tag_out); /* XXX */
+ rte->metric = newinfo.metric_out; /* XXX: the routemap uses the metric_out field */
}
+ /* Once the entry has been validated, update the metric by
+ * adding the cost of the network on wich the message
+ * arrived. If the result is greater than infinity, use infinity
+ * (RFC2453 Sec. 3.9.2)
+ **/
+
+ /* Zebra ripngd can handle offset-list in. */
+ ret = ripng_offset_list_apply_in (&p, ifp, &rte->metric);
+
+ /* If offset-list does not modify the metric use interface's
+ * one. */
+ if (! ret)
+ rte->metric += ifp->metric;
+
+ if (rte->metric > RIPNG_METRIC_INFINITY)
+ rte->metric = RIPNG_METRIC_INFINITY;
+
/* Set nexthop pointer. */
if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS)
nexthop = &ripng_nexthop->address;
@@ -561,6 +736,23 @@ ripng_route_process (struct rte *rte, struct sockaddr_in6 *from,
/* Lookup RIPng routing table. */
rp = route_node_get (ripng->table, (struct prefix *) &p);
+ /* Sanity check */
+ rinfo = rp->info;
+ if (rinfo)
+ {
+ /* Redistributed route check. */
+ if (rinfo->type != ZEBRA_ROUTE_RIPNG
+ && rinfo->metric != RIPNG_METRIC_INFINITY)
+ return;
+
+ /* Local static route. */
+ if (rinfo->type == ZEBRA_ROUTE_RIPNG
+ && ((rinfo->sub_type == RIPNG_ROUTE_STATIC) ||
+ (rinfo->sub_type == RIPNG_ROUTE_DEFAULT))
+ && rinfo->metric != RIPNG_METRIC_INFINITY)
+ return;
+ }
+
if (rp->info == NULL)
{
/* Now, check to see whether there is already an explicit route
@@ -638,17 +830,45 @@ ripng_route_process (struct rte *rte, struct sockaddr_in6 *from,
oldmetric = rinfo->metric;
rinfo->metric = rte->metric;
rinfo->tag = ntohs (rte->tag);
+ IPV6_ADDR_COPY (&rinfo->from, &from->sin6_addr);
+ rinfo->ifindex = ifp->ifindex;
- if (! IN6_ARE_ADDR_EQUAL (&rinfo->nexthop, nexthop))
+ /* Should a new route to this network be established
+ while the garbage-collection timer is running, the
+ new route will replace the one that is about to be
+ deleted. In this case the garbage-collection timer
+ must be cleared. */
+
+ if (oldmetric == RIPNG_METRIC_INFINITY &&
+ rinfo->metric < RIPNG_METRIC_INFINITY)
+ {
+ rinfo->type = ZEBRA_ROUTE_RIPNG;
+ rinfo->sub_type = RIPNG_ROUTE_RTE;
+
+ RIPNG_TIMER_OFF (rinfo->t_garbage_collect);
+
+ if (! IPV6_ADDR_SAME (&rinfo->nexthop, nexthop))
+ IPV6_ADDR_COPY (&rinfo->nexthop, nexthop);
+
+ ripng_zebra_ipv6_add (&p, nexthop, ifp->ifindex);
+ rinfo->flags |= RIPNG_RTF_FIB;
+
+ /* The aggregation counter needs to be updated because
+ the prefixes, which are into the gc, have been
+ removed from the aggregator (see ripng_timout). */
+ ripng_aggregate_increment (rp, rinfo);
+ }
+
+ /* Update nexthop and/or metric value. */
+ if (oldmetric != RIPNG_METRIC_INFINITY)
{
ripng_zebra_ipv6_delete (&p, &rinfo->nexthop, rinfo->ifindex);
ripng_zebra_ipv6_add (&p, nexthop, ifp->ifindex);
rinfo->flags |= RIPNG_RTF_FIB;
- IPV6_ADDR_COPY (&rinfo->nexthop, nexthop);
+ if (! IPV6_ADDR_SAME (&rinfo->nexthop, nexthop))
+ IPV6_ADDR_COPY (&rinfo->nexthop, nexthop);
}
- IPV6_ADDR_COPY (&rinfo->from, &from->sin6_addr);
- rinfo->ifindex = ifp->ifindex;
/* - Set the route change flag and signal the output process
to trigger an update. */
@@ -675,6 +895,12 @@ ripng_route_process (struct rte *rte, struct sockaddr_in6 *from,
/* - The metric for the route is set to 16
(infinity). This causes the route to be removed
from service.*/
+ ripng_zebra_ipv6_delete (&p, &rinfo->nexthop, rinfo->ifindex);
+ rinfo->flags &= ~RIPNG_RTF_FIB;
+
+ /* Aggregate count decrement. */
+ ripng_aggregate_decrement (rp, rinfo);
+
/* - The route change flag is to indicate that this
entry has been changed. */
/* - The output process is signalled to trigger a
@@ -686,13 +912,6 @@ ripng_route_process (struct rte *rte, struct sockaddr_in6 *from,
{
/* otherwise, re-initialize the timeout. */
ripng_timeout_update (rinfo);
-
- /* Should a new route to this network be established
- while the garbage-collection timer is running, the
- new route will replace the one that is about to be
- deleted. In this case the garbage-collection timer
- must be cleared. */
- RIPNG_TIMER_OFF (rinfo->t_garbage_collect);
}
}
/* Unlock tempolary lock of the route. */
@@ -703,7 +922,7 @@ ripng_route_process (struct rte *rte, struct sockaddr_in6 *from,
/* Add redistributed route to RIPng table. */
void
ripng_redistribute_add (int type, int sub_type, struct prefix_ipv6 *p,
- unsigned int ifindex)
+ unsigned int ifindex, struct in6_addr *nexthop)
{
struct route_node *rp;
struct ripng_info *rinfo;
@@ -713,30 +932,89 @@ ripng_redistribute_add (int type, int sub_type, struct prefix_ipv6 *p,
return;
if (IN6_IS_ADDR_LOOPBACK (&p->prefix))
return;
+#if defined (MUSICA) || defined (LINUX)
+ /* XXX As long as the RIPng redistribution is applied to all the connected
+ * routes, one needs to filter the ::/96 prefixes.
+ * However it could be a wanted case, it will be removed soon.
+ */
+ if ((IN6_IS_ADDR_V4COMPAT(&p->prefix)) ||
+ (IN6_IS_ADDR_UNSPECIFIED (&p->prefix) && (p->prefixlen == 96)))
+ return;
+#endif /* MUSICA or LINUX */
rp = route_node_get (ripng->table, (struct prefix *) p);
rinfo = rp->info;
if (rinfo)
{
+ if (rinfo->type == ZEBRA_ROUTE_CONNECT
+ && rinfo->sub_type == RIPNG_ROUTE_INTERFACE
+ && rinfo->metric != RIPNG_METRIC_INFINITY) {
+ route_unlock_node (rp);
+ return;
+ }
+
+ /* Manually configured RIPng route check.
+ * They have the precedence on all the other entries.
+ **/
+ if (rinfo->type == ZEBRA_ROUTE_RIPNG
+ && ((rinfo->sub_type == RIPNG_ROUTE_STATIC) ||
+ (rinfo->sub_type == RIPNG_ROUTE_DEFAULT)) ) {
+ if (type != ZEBRA_ROUTE_RIPNG || ((sub_type != RIPNG_ROUTE_STATIC) &&
+ (sub_type != RIPNG_ROUTE_DEFAULT))) {
+ route_unlock_node (rp);
+ return;
+ }
+ }
+
RIPNG_TIMER_OFF (rinfo->t_timeout);
RIPNG_TIMER_OFF (rinfo->t_garbage_collect);
+
+ /* Tells the other daemons about the deletion of
+ * this RIPng route
+ **/
+ if (ripng_route_rte (rinfo))
+ ripng_zebra_ipv6_delete ((struct prefix_ipv6 *)&rp->p, &rinfo->nexthop,
+ rinfo->metric);
+
+ rp->info = NULL;
+ ripng_info_free (rinfo);
+
route_unlock_node (rp);
+
}
- else
- {
- rinfo = ripng_info_new ();
- ripng_aggregate_increment (rp, rinfo);
- }
+
+ rinfo = ripng_info_new ();
rinfo->type = type;
rinfo->sub_type = sub_type;
rinfo->ifindex = ifindex;
rinfo->metric = 1;
- rinfo->flags |= RIPNG_RTF_FIB;
-
rinfo->rp = rp;
+
+ if (nexthop && IN6_IS_ADDR_LINKLOCAL(nexthop))
+ rinfo->nexthop = *nexthop;
+
+ rinfo->flags |= RIPNG_RTF_FIB;
rp->info = rinfo;
+
+ /* Aggregate check. */
+ ripng_aggregate_increment (rp, rinfo);
+
+ rinfo->flags |= RIPNG_RTF_CHANGED;
+
+ if (IS_RIPNG_DEBUG_EVENT) {
+ if (!nexthop)
+ zlog_info ("Redistribute new prefix %s/%d on the interface %s",
+ inet6_ntop(&p->prefix), p->prefixlen,
+ ifindex2ifname(ifindex));
+ else
+ zlog_info ("Redistribute new prefix %s/%d with nexthop %s on the interface %s",
+ inet6_ntop(&p->prefix), p->prefixlen, inet6_ntop(nexthop),
+ ifindex2ifname(ifindex));
+ }
+
+ ripng_event (RIPNG_TRIGGERED_UPDATE, 0);
}
/* Delete redistributed route to RIPng table. */
@@ -751,6 +1029,15 @@ ripng_redistribute_delete (int type, int sub_type, struct prefix_ipv6 *p,
return;
if (IN6_IS_ADDR_LOOPBACK (&p->prefix))
return;
+#if defined (MUSICA) || defined (LINUX)
+ /* XXX As long as the RIPng redistribution is applied to all the connected
+ * routes, one needs to filter the ::/96 prefixes.
+ * However it could be a wanted case, it will be removed soon.
+ */
+ if ((IN6_IS_ADDR_V4COMPAT(&p->prefix)) ||
+ (IN6_IS_ADDR_UNSPECIFIED (&p->prefix) && (p->prefixlen == 96)))
+ return;
+#endif /* MUSICA or LINUX */
rp = route_node_lookup (ripng->table, (struct prefix *) p);
@@ -763,18 +1050,24 @@ ripng_redistribute_delete (int type, int sub_type, struct prefix_ipv6 *p,
&& rinfo->sub_type == sub_type
&& rinfo->ifindex == ifindex)
{
- rp->info = NULL;
-
+ /* Perform poisoned reverse. */
+ rinfo->metric = RIPNG_METRIC_INFINITY;
+ RIPNG_TIMER_ON (rinfo->t_garbage_collect,
+ ripng_garbage_collect, ripng->garbage_time);
RIPNG_TIMER_OFF (rinfo->t_timeout);
- RIPNG_TIMER_OFF (rinfo->t_garbage_collect);
+
+ /* Aggregate count decrement. */
+ ripng_aggregate_decrement (rp, rinfo);
+
+ rinfo->flags |= RIPNG_RTF_CHANGED;
- ripng_info_free (rinfo);
+ if (IS_RIPNG_DEBUG_EVENT)
+ zlog_info ("Poisone %s/%d on the interface %s with an infinity metric [delete]",
+ inet6_ntop(&p->prefix), p->prefixlen,
+ ifindex2ifname(ifindex));
- route_unlock_node (rp);
+ ripng_event (RIPNG_TRIGGERED_UPDATE, 0);
}
-
- /* For unlock route_node_lookup (). */
- route_unlock_node (rp);
}
}
@@ -785,19 +1078,35 @@ ripng_redistribute_withdraw (int type)
struct route_node *rp;
struct ripng_info *rinfo;
+ if (!ripng)
+ return;
+
for (rp = route_top (ripng->table); rp; rp = route_next (rp))
if ((rinfo = rp->info) != NULL)
{
- if (rinfo->type == type)
+ if ((rinfo->type == type)
+ && (rinfo->sub_type != RIPNG_ROUTE_INTERFACE))
{
- rp->info = NULL;
-
+ /* Perform poisoned reverse. */
+ rinfo->metric = RIPNG_METRIC_INFINITY;
+ RIPNG_TIMER_ON (rinfo->t_garbage_collect,
+ ripng_garbage_collect, ripng->garbage_time);
RIPNG_TIMER_OFF (rinfo->t_timeout);
- RIPNG_TIMER_OFF (rinfo->t_garbage_collect);
- ripng_info_free (rinfo);
+ /* Aggregate count decrement. */
+ ripng_aggregate_decrement (rp, rinfo);
+
+ rinfo->flags |= RIPNG_RTF_CHANGED;
+
+ if (IS_RIPNG_DEBUG_EVENT) {
+ struct prefix_ipv6 *p = (struct prefix_ipv6 *) &rp->p;
- route_unlock_node (rp);
+ zlog_info ("Poisone %s/%d on the interface %s [withdraw]",
+ inet6_ntop(&p->prefix), p->prefixlen,
+ ifindex2ifname(rinfo->ifindex));
+ }
+
+ ripng_event (RIPNG_TRIGGERED_UPDATE, 0);
}
}
}
@@ -818,6 +1127,7 @@ ripng_response_process (struct ripng_packet *packet, int size,
{
zlog_warn ("RIPng packet comes from non RIPng port %d from %s",
ntohs (from->sin6_port), inet6_ntop (&from->sin6_addr));
+ ripng_peer_bad_packet (from);
return;
}
@@ -828,6 +1138,7 @@ ripng_response_process (struct ripng_packet *packet, int size,
{
zlog_warn ("RIPng packet comes from non link local address %s",
inet6_ntop (&from->sin6_addr));
+ ripng_peer_bad_packet (from);
return;
}
@@ -840,6 +1151,7 @@ ripng_response_process (struct ripng_packet *packet, int size,
{
zlog_warn ("RIPng packet comes from my own link local address %s",
inet6_ntop (&from->sin6_addr));
+ ripng_peer_bad_packet (from);
return;
}
@@ -851,9 +1163,13 @@ ripng_response_process (struct ripng_packet *packet, int size,
{
zlog_warn ("RIPng packet comes with non 255 hop count %d from %s",
hoplimit, inet6_ntop (&from->sin6_addr));
+ ripng_peer_bad_packet (from);
return;
}
+ /* Update RIPng peer. */
+ ripng_peer_update (from, packet->version);
+
/* Reset nexthop. */
memset (&nexthop, 0, sizeof (struct ripng_nexthop));
nexthop.flag = RIPNG_NEXTHOP_UNSPEC;
@@ -881,18 +1197,21 @@ ripng_response_process (struct ripng_packet *packet, int size,
{
zlog_warn ("Destination prefix is a multicast address %s/%d [%d]",
inet6_ntop (&rte->addr), rte->prefixlen, rte->metric);
+ ripng_peer_bad_route (from);
continue;
}
if (IN6_IS_ADDR_LINKLOCAL (&rte->addr))
{
zlog_warn ("Destination prefix is a link-local address %s/%d [%d]",
inet6_ntop (&rte->addr), rte->prefixlen, rte->metric);
+ ripng_peer_bad_route (from);
continue;
}
if (IN6_IS_ADDR_LOOPBACK (&rte->addr))
{
zlog_warn ("Destination prefix is a loopback address %s/%d [%d]",
inet6_ntop (&rte->addr), rte->prefixlen, rte->metric);
+ ripng_peer_bad_route (from);
continue;
}
@@ -903,6 +1222,7 @@ ripng_response_process (struct ripng_packet *packet, int size,
zlog_warn ("Invalid prefix length %s/%d from %s%%%s",
inet6_ntop (&rte->addr), rte->prefixlen,
inet6_ntop (&from->sin6_addr), ifp->name);
+ ripng_peer_bad_route (from);
continue;
}
@@ -911,13 +1231,13 @@ ripng_response_process (struct ripng_packet *packet, int size,
{
zlog_warn ("Invalid metric %d from %s%%%s", rte->metric,
inet6_ntop (&from->sin6_addr), ifp->name);
+ ripng_peer_bad_route (from);
continue;
}
- /* Metric calculation. */
- rte->metric += ifp->metric;
- if (rte->metric > RIPNG_METRIC_INFINITY)
- rte->metric = RIPNG_METRIC_INFINITY;
+ /* Vincent: XXX Should we compute the direclty reachable nexthop
+ * for our RIPng network ?
+ **/
/* Routing table updates. */
ripng_route_process (rte, from, &nexthop, ifp);
@@ -936,6 +1256,10 @@ ripng_request_process (struct ripng_packet *packet,int size,
struct ripng_info *rinfo;
struct ripng_interface *ri;
+ /* Does not reponse to the requests on the loopback interfaces */
+ if (if_is_loopback (ifp))
+ return;
+
/* Check RIPng process is enabled on this interface. */
ri = ifp->info;
if (! ri->running)
@@ -945,6 +1269,9 @@ ripng_request_process (struct ripng_packet *packet,int size,
if (ri->passive)
return;
+ /* RIPng peer update. */
+ ripng_peer_update (from, packet->version);
+
lim = ((caddr_t) packet) + size;
rte = packet->rte;
@@ -965,7 +1292,7 @@ ripng_request_process (struct ripng_packet *packet,int size,
rte->metric == RIPNG_METRIC_INFINITY)
{
/* All route with split horizon */
- ripng_output_process (ifp, from, ripng_all_route, ripng_split_horizon);
+ ripng_output_process (ifp, from, ripng_all_route);
}
else
{
@@ -1044,6 +1371,7 @@ ripng_read (struct thread *thread)
{
zlog_warn ("RIPng invalid packet size %d from %s", len,
inet6_ntop (&from.sin6_addr));
+ ripng_peer_bad_packet (&from);
return 0;
}
@@ -1072,6 +1400,7 @@ ripng_read (struct thread *thread)
{
zlog_warn ("RIPng packet version %d doesn't fit to my version %d",
packet->version, ripng->version);
+ ripng_peer_bad_packet (&from);
return 0;
}
@@ -1086,6 +1415,7 @@ ripng_read (struct thread *thread)
break;
default:
zlog_warn ("Invalid RIPng command %d", packet->command);
+ ripng_peer_bad_packet (&from);
break;
}
return 0;
@@ -1148,7 +1478,7 @@ ripng_update (struct thread *t)
}
#endif /* RIPNG_ADVANCED */
- ripng_output_process (ifp, NULL, ripng_all_route, ripng_split_horizon);
+ ripng_output_process (ifp, NULL, ripng_all_route);
}
/* Triggered updates may be suppressed if a regular update is due by
@@ -1221,8 +1551,7 @@ ripng_triggered_update (struct thread *t)
if (ri->passive)
continue;
- ripng_output_process (ifp, NULL, ripng_changed_route,
- ripng_split_horizon);
+ ripng_output_process (ifp, NULL, ripng_changed_route);
}
/* Once all of the triggered updates have been generated, the route
@@ -1245,7 +1574,7 @@ ripng_triggered_update (struct thread *t)
the routing table entry in the stream. */
int
ripng_write_rte (int num, struct stream *s, struct prefix_ipv6 *p,
- u_int16_t tag, u_char metric)
+ struct in6_addr *nexthop, u_int16_t tag, u_char metric)
{
/* RIPng packet header. */
if (num == 0)
@@ -1256,9 +1585,15 @@ ripng_write_rte (int num, struct stream *s, struct prefix_ipv6 *p,
}
/* Write routing table entry. */
- stream_write (s, (caddr_t) &p->prefix, sizeof (struct in6_addr));
+ if (!nexthop)
+ stream_write (s, (caddr_t) &p->prefix, sizeof (struct in6_addr));
+ else
+ stream_write (s, (caddr_t) nexthop, sizeof (struct in6_addr));
stream_putw (s, tag);
- stream_putc (s, p->prefixlen);
+ if (p)
+ stream_putc (s, p->prefixlen);
+ else
+ stream_putc (s, 0);
stream_putc (s, metric);
return ++num;
@@ -1267,56 +1602,53 @@ ripng_write_rte (int num, struct stream *s, struct prefix_ipv6 *p,
/* Send RESPONSE message to specified destination. */
void
ripng_output_process (struct interface *ifp, struct sockaddr_in6 *to,
- int route_type, int split_horizon)
+ int route_type)
{
int ret;
- struct stream *s;
struct route_node *rp;
struct ripng_info *rinfo;
struct ripng_interface *ri;
struct ripng_aggregate *aggregate;
struct prefix_ipv6 *p;
- int num;
- int mtu;
- int rtemax;
- u_char metric;
- u_char metric_set;
-
- if (IS_RIPNG_DEBUG_EVENT)
- zlog_info ("RIPng update routes on interface %s", ifp->name);
-
- /* Output stream get from ripng structre. XXX this should be
- interface structure. */
- s = ripng->obuf;
-
- /* Reset stream and RTE counter. */
- stream_reset (s);
- num = 0;
-
- mtu = ifp->mtu;
- if (mtu < 0)
- mtu = IFMINMTU;
+ struct list * ripng_rte_list;
- rtemax = (min (mtu, RIPNG_MAX_PACKET_SIZE) -
- IPV6_HDRLEN -
- sizeof (struct udphdr) -
- sizeof (struct ripng_packet) +
- sizeof (struct rte)) / sizeof (struct rte);
+ if (IS_RIPNG_DEBUG_EVENT) {
+ if (to)
+ zlog_info ("RIPng update routes to neighbor %s",
+ inet6_ntop(&to->sin6_addr));
+ else
+ zlog_info ("RIPng update routes on interface %s", ifp->name);
+ }
-#ifdef DEBUG
- zlog_info ("DEBUG RIPng: ifmtu is %d", ifp->mtu);
- zlog_info ("DEBUG RIPng: rtemax is %d", rtemax);
-#endif /* DEBUG */
-
/* Get RIPng interface. */
ri = ifp->info;
-
+
+ ripng_rte_list = ripng_rte_new();
+
for (rp = route_top (ripng->table); rp; rp = route_next (rp))
{
if ((rinfo = rp->info) != NULL && rinfo->suppress == 0)
{
+ /* If no route-map are applied, the RTE will be these following
+ * informations.
+ */
p = (struct prefix_ipv6 *) &rp->p;
- metric = rinfo->metric;
+ rinfo->metric_out = rinfo->metric;
+ rinfo->tag_out = rinfo->tag;
+ memset(&rinfo->nexthop_out, 0, sizeof(rinfo->nexthop_out));
+ /* In order to avoid some local loops,
+ * if the RIPng route has a nexthop via this interface, keep the nexthop,
+ * otherwise set it to 0. The nexthop should not be propagated
+ * beyond the local broadcast/multicast area in order
+ * to avoid an IGP multi-level recursive look-up.
+ */
+ if (rinfo->ifindex == ifp->ifindex)
+ rinfo->nexthop_out = rinfo->nexthop;
+
+ /* Apply output filters. */
+ ret = ripng_outgoing_filter (p, ri);
+ if (ret < 0)
+ continue;
/* Changed route only output. */
if (route_type == ripng_changed_route &&
@@ -1324,164 +1656,130 @@ ripng_output_process (struct interface *ifp, struct sockaddr_in6 *to,
continue;
/* Split horizon. */
- if (split_horizon == ripng_split_horizon &&
- rinfo->ifindex == ifp->ifindex)
- continue;
-
- /* Apply output filters.*/
- if (ri->list[RIPNG_FILTER_OUT])
- {
- if (access_list_apply (ri->list[RIPNG_FILTER_OUT],
- (struct prefix *) p) == FILTER_DENY)
- {
- if (IS_RIPNG_DEBUG_PACKET)
- zlog_info ("RIPng %s/%d is filtered by distribute out",
- inet6_ntop (&p->prefix), p->prefixlen);
- continue;
- }
- }
- if (ri->prefix[RIPNG_FILTER_OUT])
- {
- if (prefix_list_apply (ri->prefix[RIPNG_FILTER_OUT],
- (struct prefix *) p) == PREFIX_DENY)
- {
- if (IS_RIPNG_DEBUG_PACKET)
- zlog_info ("RIPng %s/%d is filtered by prefix-list out",
- inet6_ntop (&p->prefix), p->prefixlen);
- continue;
- }
- }
+ if (ri->split_horizon == RIPNG_SPLIT_HORIZON)
+ {
+ /* We perform split horizon for RIPng routes. */
+ if ((rinfo->type == ZEBRA_ROUTE_RIPNG) &&
+ rinfo->ifindex == ifp->ifindex)
+ continue;
+ }
/* Preparation for route-map. */
- metric_set = 0;
+ rinfo->metric_set = 0;
+ /* nexthop_out,
+ * metric_out
+ * and tag_out are already initialized.
+ */
- /* Route-map */
+ /* Interface route-map */
if (ri->routemap[RIPNG_FILTER_OUT])
{
int ret;
- struct ripng_info newinfo;
-
- memset (&newinfo, 0, sizeof (struct ripng_info));
- newinfo.metric = metric;
ret = route_map_apply (ri->routemap[RIPNG_FILTER_OUT],
(struct prefix *) p, RMAP_RIPNG,
- &newinfo);
+ rinfo);
if (ret == RMAP_DENYMATCH)
{
if (IS_RIPNG_DEBUG_PACKET)
zlog_info ("RIPng %s/%d is filtered by route-map out",
inet6_ntop (&p->prefix), p->prefixlen);
- return;
+ continue;
}
- metric = newinfo.metric;
- metric_set = newinfo.metric_set;
}
- /* When the interface route-map does not set metric */
- if (! metric_set)
+ /* Redistribute route-map. */
+ if (ripng->route_map[rinfo->type].name)
{
- /* and the redistribute route-map is set. */
- if (ripng->route_map[rinfo->type].name)
+ int ret;
+
+ ret = route_map_apply (ripng->route_map[rinfo->type].map,
+ (struct prefix *) p, RMAP_RIPNG,
+ &rinfo);
+
+ if (ret == RMAP_DENYMATCH)
{
- int ret;
- struct ripng_info newinfo;
-
- memset (&newinfo, 0, sizeof (struct ripng_info));
- newinfo.metric = metric;
-
- ret = route_map_apply (ripng->route_map[rinfo->type].map,
- (struct prefix *) p, RMAP_RIPNG,
- &newinfo);
-
- if (ret == RMAP_DENYMATCH)
- {
- if (IS_RIPNG_DEBUG_PACKET)
- zlog_info ("RIPng %s/%d is filtered by route-map",
- inet6_ntop (&p->prefix), p->prefixlen);
- continue;
- }
-
- metric = newinfo.metric;
- metric_set = newinfo.metric_set;
+ if (IS_RIPNG_DEBUG_PACKET)
+ zlog_info ("RIPng %s/%d is filtered by route-map",
+ inet6_ntop (&p->prefix), p->prefixlen);
+ continue;
}
+ }
- /* When the redistribute route-map does not set metric. */
- if (! metric_set)
+ /* When the route-map does not set metric. */
+ if (! rinfo->metric_set)
+ {
+ /* If the redistribute metric is set. */
+ if (ripng->route_map[rinfo->type].metric_config
+ && rinfo->metric != RIPNG_METRIC_INFINITY)
+ {
+ rinfo->metric_out = ripng->route_map[rinfo->type].metric;
+ }
+ else
{
- /* If the redistribute metric is set. */
- if (ripng->route_map[rinfo->type].metric_config
+ /* If the route is not connected or localy generated
+ one, use default-metric value */
+ if (rinfo->type != ZEBRA_ROUTE_RIPNG
+ && rinfo->type != ZEBRA_ROUTE_CONNECT
&& rinfo->metric != RIPNG_METRIC_INFINITY)
- {
- metric = ripng->route_map[rinfo->type].metric;
- }
- else
- {
- /* If the route is not connected or localy generated
- one, use default-metric value */
- if (rinfo->type != ZEBRA_ROUTE_RIPNG
- && rinfo->type != ZEBRA_ROUTE_CONNECT
- && rinfo->metric != RIPNG_METRIC_INFINITY)
- metric = ripng->default_metric;
- }
+ rinfo->metric_out = ripng->default_metric;
}
}
- /* Write RTE to the stream. */
- num = ripng_write_rte (num, s, p, rinfo->tag, metric);
- if (num == rtemax)
- {
- ret = ripng_send_packet (STREAM_DATA (s), stream_get_endp (s),
- to, ifp);
-
- if (ret >= 0 && IS_RIPNG_DEBUG_SEND)
- ripng_packet_dump ((struct ripng_packet *)STREAM_DATA (s),
- stream_get_endp(s), "SEND");
- num = 0;
- stream_reset (s);
- }
+ /* Apply offset-list */
+ if (rinfo->metric_out != RIPNG_METRIC_INFINITY)
+ ripng_offset_list_apply_out (p, ifp, &rinfo->metric_out);
+
+ if (rinfo->metric_out > RIPNG_METRIC_INFINITY)
+ rinfo->metric_out = RIPNG_METRIC_INFINITY;
+
+ /* Perform split-horizon with poisoned reverse
+ * for RIPng routes.
+ **/
+ if (ri->split_horizon == RIPNG_SPLIT_HORIZON_POISONED_REVERSE) {
+ if ((rinfo->type == ZEBRA_ROUTE_RIPNG) &&
+ rinfo->ifindex == ifp->ifindex)
+ rinfo->metric_out = RIPNG_METRIC_INFINITY;
+ }
+
+ /* Add RTE to the list */
+ ripng_rte_add(ripng_rte_list, p, rinfo, NULL);
}
+
+ /* Process the aggregated RTE entry */
if ((aggregate = rp->aggregate) != NULL &&
aggregate->count > 0 &&
aggregate->suppress == 0)
{
+ /* If no route-map are applied, the RTE will be these following
+ * informations.
+ */
p = (struct prefix_ipv6 *) &rp->p;
- metric = aggregate->metric;
+ aggregate->metric_set = 0;
+ aggregate->metric_out = aggregate->metric;
+ aggregate->tag_out = aggregate->tag;
+ memset(&aggregate->nexthop_out, 0, sizeof(aggregate->nexthop_out));
/* Apply output filters.*/
- if (ri->list[RIPNG_FILTER_OUT])
- {
- if (access_list_apply (ri->list[RIPNG_FILTER_OUT],
- (struct prefix *) p) == FILTER_DENY)
- {
- if (IS_RIPNG_DEBUG_PACKET)
- zlog_info ("RIPng %s/%d is filtered by distribute out",
- inet6_ntop (&p->prefix), p->prefixlen);
- continue;
- }
- }
- if (ri->prefix[RIPNG_FILTER_OUT])
- {
- if (prefix_list_apply (ri->prefix[RIPNG_FILTER_OUT],
- (struct prefix *) p) == PREFIX_DENY)
- {
- if (IS_RIPNG_DEBUG_PACKET)
- zlog_info ("RIPng %s/%d is filtered by prefix-list out",
- inet6_ntop (&p->prefix), p->prefixlen);
- continue;
- }
- }
+ ret = ripng_outgoing_filter (p, ri);
+ if (ret < 0)
+ continue;
- /* Route-map */
+ /* Interface route-map */
if (ri->routemap[RIPNG_FILTER_OUT])
{
int ret;
struct ripng_info newinfo;
+ /* let's cast the aggregate structure to ripng_info */
memset (&newinfo, 0, sizeof (struct ripng_info));
- newinfo.metric = metric;
+ /* the nexthop is :: */
+ newinfo.metric = aggregate->metric;
+ newinfo.metric_out = aggregate->metric_out;
+ newinfo.tag = aggregate->tag;
+ newinfo.tag_out = aggregate->tag_out;
ret = route_map_apply (ri->routemap[RIPNG_FILTER_OUT],
(struct prefix *) p, RMAP_RIPNG,
@@ -1492,45 +1790,40 @@ ripng_output_process (struct interface *ifp, struct sockaddr_in6 *to,
if (IS_RIPNG_DEBUG_PACKET)
zlog_info ("RIPng %s/%d is filtered by route-map out",
inet6_ntop (&p->prefix), p->prefixlen);
- return;
+ continue;
}
- metric = newinfo.metric;
+ aggregate->metric_out = newinfo.metric_out;
+ aggregate->tag_out = newinfo.tag_out;
+ if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop_out))
+ aggregate->nexthop_out = newinfo.nexthop_out;
}
+ /* There is no redistribute routemap for the aggregated RTE */
+
/* Changed route only output. */
+ /* XXX, vincent, in order to increase time convergence,
+ * it should be announced if a child has changed.
+ */
if (route_type == ripng_changed_route)
continue;
- /* Write RTE to the stream. */
- num = ripng_write_rte (num, s, p, aggregate->tag, metric);
- if (num == rtemax)
- {
- ret = ripng_send_packet (STREAM_DATA (s), stream_get_endp (s),
- to, ifp);
-
- if (ret >= 0 && IS_RIPNG_DEBUG_SEND)
- ripng_packet_dump ((struct ripng_packet *)STREAM_DATA (s),
- stream_get_endp(s), "SEND");
- num = 0;
- stream_reset (s);
- }
+ /* Apply offset-list */
+ if (aggregate->metric_out != RIPNG_METRIC_INFINITY)
+ ripng_offset_list_apply_out (p, ifp, &aggregate->metric_out);
+
+ if (aggregate->metric_out > RIPNG_METRIC_INFINITY)
+ aggregate->metric_out = RIPNG_METRIC_INFINITY;
+
+ /* Add RTE to the list */
+ ripng_rte_add(ripng_rte_list, p, NULL, aggregate);
}
}
-
- /* If unwritten RTE exist, flush it. */
- if (num != 0)
- {
- ret = ripng_send_packet (STREAM_DATA (s), stream_get_endp (s),
- to, ifp);
- if (ret >= 0 && IS_RIPNG_DEBUG_SEND)
- ripng_packet_dump ((struct ripng_packet *)STREAM_DATA (s),
- stream_get_endp (s), "SEND");
- num = 0;
- stream_reset (s);
- }
+ /* Flush the list */
+ ripng_rte_send(ripng_rte_list, ifp, to);
+ ripng_rte_free(ripng_rte_list);
}
/* Create new RIPng instance and set it to global variable. */
@@ -1541,7 +1834,7 @@ ripng_create ()
assert (ripng == NULL);
/* Allocaste RIPng instance. */
- ripng = XMALLOC (0, sizeof (struct ripng));
+ ripng = XMALLOC (MTYPE_RIPNG, sizeof (struct ripng));
memset (ripng, 0, sizeof (struct ripng));
/* Default version and timer values. */
@@ -1572,13 +1865,21 @@ ripng_create ()
return 0;
}
-/* Sned RIPng request to the interface. */
+/* Send RIPng request to the interface. */
int
ripng_request (struct interface *ifp)
{
struct rte *rte;
struct ripng_packet ripng_packet;
+ /* In default ripd doesn't send RIP_REQUEST to the loopback interface. */
+ if (if_is_loopback(ifp))
+ return 0;
+
+ /* If interface is down, don't send RIP packet. */
+ if (! if_is_up (ifp))
+ return 0;
+
if (IS_RIPNG_DEBUG_EVENT)
zlog_info ("RIPng send request to %s", ifp->name);
@@ -1592,22 +1893,6 @@ ripng_request (struct interface *ifp)
NULL, ifp);
}
-/* Clean up installed RIPng routes. */
-void
-ripng_terminate ()
-{
- struct route_node *rp;
- struct ripng_info *rinfo;
-
- for (rp = route_top (ripng->table); rp; rp = route_next (rp))
- if ((rinfo = rp->info) != NULL)
- {
- if (rinfo->type == ZEBRA_ROUTE_RIPNG &&
- rinfo->sub_type == RIPNG_ROUTE_RTE)
- ripng_zebra_ipv6_delete ((struct prefix_ipv6 *)&rp->p,
- &rinfo->nexthop, rinfo->ifindex);
- }
-}
int
ripng_update_jitter (int time)
@@ -1618,7 +1903,6 @@ ripng_update_jitter (int time)
void
ripng_event (enum ripng_event event, int sock)
{
- int ripng_request_all (struct thread *);
int jitter = 0;
switch (event)
@@ -1672,14 +1956,6 @@ struct
{ ZEBRA_ROUTE_BGP, "B", "bgp", 70},
};
-/* For messages. */
-struct message ripng_route_info[] =
-{
- { RIPNG_ROUTE_RTE, " "},
- { RIPNG_ROUTE_STATIC, "S"},
- { RIPNG_ROUTE_AGGREGATE, "a"}
-};
-
/* Print out routes update time. */
static void
ripng_vty_out_uptime (struct vty *vty, struct ripng_info *rinfo)
@@ -1709,6 +1985,40 @@ ripng_vty_out_uptime (struct vty *vty, struct ripng_info *rinfo)
}
}
+char *
+ripng_route_subtype_print (struct ripng_info *rinfo)
+{
+ static char str[3];
+ memset(str, 0, 3);
+
+ if (rinfo->suppress)
+ strcat(str, "S");
+
+ switch (rinfo->sub_type)
+ {
+ case RIPNG_ROUTE_RTE:
+ strcat(str, "n");
+ break;
+ case RIPNG_ROUTE_STATIC:
+ strcat(str, "s");
+ break;
+ case RIPNG_ROUTE_DEFAULT:
+ strcat(str, "d");
+ break;
+ case RIPNG_ROUTE_REDISTRIBUTE:
+ strcat(str, "r");
+ break;
+ case RIPNG_ROUTE_INTERFACE:
+ strcat(str, "i");
+ break;
+ default:
+ strcat(str, "?");
+ break;
+ }
+
+ return str;
+}
+
DEFUN (show_ipv6_ripng,
show_ipv6_ripng_cmd,
"show ipv6 ripng",
@@ -1722,10 +2032,16 @@ DEFUN (show_ipv6_ripng,
struct prefix_ipv6 *p;
int len;
+ if (! ripng)
+ return CMD_SUCCESS;
+
/* Header of display. */
- vty_out (vty, "%sCodes: R - RIPng%s%s"
- " Network "
- "Next Hop If Met Tag Time%s", VTY_NEWLINE,
+ vty_out (vty, "Codes: R - RIPng, C - connected, S - Static, O - OSPF, B - BGP%s"
+ "Sub-codes:%s"
+ " (n) - normal, (s) - static, (d) - default, (r) - redistribute,%s"
+ " (i) - interface, (a/S) - aggregated/Suppressed%s%s"
+ " Network Next Hop Via Metric Tag Time%s",
+ VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE,
VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE);
for (rp = route_top (ripng->table); rp; rp = route_next (rp))
@@ -1735,20 +2051,18 @@ DEFUN (show_ipv6_ripng,
p = (struct prefix_ipv6 *) &rp->p;
#ifdef DEBUG
- len = vty_out (vty, "Ra %d/%d %s/%d ",
+ len = vty_out (vty, "R(a) %d/%d %s/%d ",
aggregate->count, aggregate->suppress,
inet6_ntop (&p->prefix), p->prefixlen);
#else
- len = vty_out (vty, "Ra %s/%d ",
+ len = vty_out (vty, "R(a) %s/%d ",
inet6_ntop (&p->prefix), p->prefixlen);
#endif /* DEBUG */
+ vty_out (vty, "%s", VTY_NEWLINE);
+ vty_out (vty, "%*s", 18, " ");
- len = 37 - len;
- if (len > 0)
- vty_out (vty, "%*s", len, " ");
-
- vty_out (vty, "%*s", 26, " ");
- vty_out (vty, "%4d %3d%s", aggregate->metric,
+ vty_out (vty, "%*s", 28, " ");
+ vty_out (vty, "self %2d %3d%s", aggregate->metric,
aggregate->tag,
VTY_NEWLINE);
}
@@ -1758,32 +2072,54 @@ DEFUN (show_ipv6_ripng,
p = (struct prefix_ipv6 *) &rp->p;
#ifdef DEBUG
- len = vty_out (vty, "%s%s 0/%d %s/%d ",
+ len = vty_out (vty, "%s(%s) 0/%d %s/%d ",
route_info[rinfo->type].str,
- rinfo->suppress ? "s" : " ",
+ ripng_route_subtype_print(rinfo),
rinfo->suppress,
inet6_ntop (&p->prefix), p->prefixlen);
#else
- len = vty_out (vty, "%s%s %s/%d ",
+ len = vty_out (vty, "%s(%s) %s/%d ",
route_info[rinfo->type].str,
- rinfo->suppress ? "s" : " ",
+ ripng_route_subtype_print(rinfo),
inet6_ntop (&p->prefix), p->prefixlen);
#endif /* DEBUG */
- len = 37 - len;
+ vty_out (vty, "%s", VTY_NEWLINE);
+ vty_out (vty, "%*s", 18, " ");
+ len = vty_out (vty, "%s", inet6_ntop (&rinfo->nexthop));
+
+ len = 28 - len;
if (len > 0)
- vty_out (vty, "%*s", len, " ");
+ len = vty_out (vty, "%*s", len, " ");
- len = vty_out (vty, "%s", inet6_ntop (&rinfo->nexthop));
+ /* from */
+ if ((rinfo->type == ZEBRA_ROUTE_RIPNG) &&
+ (rinfo->sub_type == RIPNG_ROUTE_RTE))
+ {
+ len = vty_out (vty, "%s", ifindex2ifname(rinfo->ifindex));
+ } else if (rinfo->metric == RIPNG_METRIC_INFINITY)
+ {
+ len = vty_out (vty, "kill");
+ } else
+ len = vty_out (vty, "self");
- len = 26 - len;
+ len = 9 - len;
if (len > 0)
vty_out (vty, "%*s", len, " ");
- vty_out (vty, "%2d %2d %3d ",
- rinfo->ifindex, rinfo->metric, rinfo->tag);
+ vty_out (vty, " %2d %3d ",
+ rinfo->metric, rinfo->tag);
- if (rinfo->sub_type == RIPNG_ROUTE_RTE)
+ /* time */
+ if ((rinfo->type == ZEBRA_ROUTE_RIPNG) &&
+ (rinfo->sub_type == RIPNG_ROUTE_RTE))
+ {
+ /* RTE from remote RIP routers */
ripng_vty_out_uptime (vty, rinfo);
+ } else if (rinfo->metric == RIPNG_METRIC_INFINITY)
+ {
+ /* poisonous reversed routes (gc) */
+ ripng_vty_out_uptime (vty, rinfo);
+ }
vty_out (vty, "%s", VTY_NEWLINE);
}
@@ -1792,6 +2128,88 @@ DEFUN (show_ipv6_ripng,
return CMD_SUCCESS;
}
+/* Return next event time. */
+static int
+ripng_next_thread_timer (struct thread *thread)
+{
+ struct timeval timer_now;
+
+ gettimeofday (&timer_now, NULL);
+
+ return thread->u.sands.tv_sec - timer_now.tv_sec;
+}
+
+DEFUN (show_ipv6_ripng_status,
+ show_ipv6_ripng_status_cmd,
+ "show ipv6 ripng status",
+ SHOW_STR
+ IP_STR
+ "Show RIPng routes\n"
+ "IPv6 routing protocol process parameters and statistics\n")
+{
+ listnode node;
+ int ripng_network_write (struct vty *, int);
+ void ripng_redistribute_write (struct vty *, int);
+
+ if (! ripng)
+ return CMD_SUCCESS;
+
+ vty_out (vty, "Routing Protocol is \"RIPng\"%s", VTY_NEWLINE);
+ vty_out (vty, " Sending updates every %ld seconds with +/-50%%,",
+ ripng->update_time);
+ vty_out (vty, " next due in %d seconds%s",
+ ripng_next_thread_timer (ripng->t_update),
+ VTY_NEWLINE);
+ vty_out (vty, " Timeout after %ld seconds,", ripng->timeout_time);
+ vty_out (vty, " garbage collect after %ld seconds%s", ripng->garbage_time,
+ VTY_NEWLINE);
+
+ /* Filtering status show. */
+ config_show_distribute (vty);
+
+ /* Default metric information. */
+ vty_out (vty, " Default redistribution metric is %d%s",
+ ripng->default_metric, VTY_NEWLINE);
+
+ /* Redistribute information. */
+ vty_out (vty, " Redistributing:");
+ ripng_redistribute_write (vty, 0);
+ vty_out (vty, "%s", VTY_NEWLINE);
+
+ vty_out (vty, " Default version control: send version %d,", ripng->version);
+ vty_out (vty, " receive version %d %s", ripng->version,
+ VTY_NEWLINE);
+
+ vty_out (vty, " Interface Send Recv%s", VTY_NEWLINE);
+
+ for (node = listhead (iflist); node; node = nextnode (node))
+ {
+ struct ripng_interface *ri;
+ struct interface *ifp;
+
+ ifp = getdata (node);
+ ri = ifp->info;
+
+ if (ri->enable_network || ri->enable_interface)
+ {
+
+ vty_out (vty, " %-17s%-3d %-3d%s", ifp->name,
+ ripng->version,
+ ripng->version,
+ VTY_NEWLINE);
+ }
+ }
+
+ vty_out (vty, " Routing for Networks:%s", VTY_NEWLINE);
+ ripng_network_write (vty, 0);
+
+ vty_out (vty, " Routing Information Sources:%s", VTY_NEWLINE);
+ vty_out (vty, " Gateway BadPackets BadRoutes Distance Last Update%s", VTY_NEWLINE);
+ ripng_peer_display (vty);
+
+ return CMD_SUCCESS;
+}
+
DEFUN (router_ripng,
router_ripng_cmd,
"router ripng",
@@ -1817,6 +2235,18 @@ DEFUN (router_ripng,
return CMD_SUCCESS;
}
+DEFUN (no_router_ripng,
+ no_router_ripng_cmd,
+ "no router ripng",
+ NO_STR
+ "Enable a routing process\n"
+ "Make RIPng instance command\n")
+{
+ if(ripng)
+ ripng_clean();
+ return CMD_SUCCESS;
+}
+
DEFUN (ripng_route,
ripng_route_cmd,
"route IPV6ADDR",
@@ -1844,7 +2274,7 @@ DEFUN (ripng_route,
}
rp->info = (void *)1;
- ripng_redistribute_add (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_STATIC, &p, 0);
+ ripng_redistribute_add (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_STATIC, &p, 0, NULL);
return CMD_SUCCESS;
}
@@ -2150,6 +2580,15 @@ DEFUN (no_ripng_timers,
return CMD_SUCCESS;
}
+ALIAS (no_ripng_timers,
+ no_ripng_timers_val_cmd,
+ "no timers basic <0-65535> <0-65535> <0-65535>",
+ NO_STR
+ "RIPng timers setup\n"
+ "Basic timer\n"
+ "Routing table update timer value in second. Default is 30.\n"
+ "Routing information timeout timer. Default is 180.\n"
+ "Garbage collection timer. Default is 120.\n")
DEFUN (show_ipv6_protocols, show_ipv6_protocols_cmd,
"show ipv6 protocols",
@@ -2186,10 +2625,12 @@ DEFUN (ripng_default_information_originate,
{
struct prefix_ipv6 p;
- ripng->default_information = 1;
+ if (! ripng ->default_information) {
+ ripng->default_information = 1;
- str2prefix_ipv6 ("::/0", &p);
- ripng_redistribute_add (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_STATIC, &p, 0);
+ str2prefix_ipv6 ("::/0", &p);
+ ripng_redistribute_add (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_DEFAULT, &p, 0, NULL);
+ }
return CMD_SUCCESS;
}
@@ -2203,10 +2644,12 @@ DEFUN (no_ripng_default_information_originate,
{
struct prefix_ipv6 p;
- ripng->default_information = 0;
+ if (ripng->default_information) {
+ ripng->default_information = 0;
- str2prefix_ipv6 ("::/0", &p);
- ripng_redistribute_delete (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_STATIC, &p, 0);
+ str2prefix_ipv6 ("::/0", &p);
+ ripng_redistribute_delete (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_DEFAULT, &p, 0);
+ }
return CMD_SUCCESS;
}
@@ -2215,8 +2658,8 @@ DEFUN (no_ripng_default_information_originate,
int
ripng_config_write (struct vty *vty)
{
- int ripng_network_write (struct vty *);
- void ripng_redistribute_write (struct vty *);
+ int ripng_network_write (struct vty *, int);
+ void ripng_redistribute_write (struct vty *, int);
int write = 0;
struct route_node *rp;
@@ -2229,14 +2672,17 @@ ripng_config_write (struct vty *vty)
if (ripng->default_information)
vty_out (vty, " default-information originate%s", VTY_NEWLINE);
- ripng_network_write (vty);
+ ripng_network_write (vty, 1);
/* RIPng default metric configuration */
if (ripng->default_metric != RIPNG_DEFAULT_METRIC_DEFAULT)
vty_out (vty, " default-metric %d%s",
ripng->default_metric, VTY_NEWLINE);
- ripng_redistribute_write (vty);
+ ripng_redistribute_write (vty, 1);
+
+ /* RIP offset-list configuration. */
+ config_write_ripng_offset_list (vty);
/* RIPng aggregate routes. */
for (rp = route_top (ripng->aggregate); rp; rp = route_next (rp))
@@ -2355,6 +2801,7 @@ ripng_distribute_update (struct distribute *dist)
else
ri->prefix[RIPNG_FILTER_OUT] = NULL;
}
+
void
ripng_distribute_update_interface (struct interface *ifp)
{
@@ -2378,6 +2825,103 @@ ripng_distribute_update_all ()
ripng_distribute_update_interface (ifp);
}
}
+
+/* delete all the added ripng routes. */
+void
+ripng_clean()
+{
+ int i;
+ struct route_node *rp;
+ struct ripng_info *rinfo;
+
+ if (ripng) {
+ /* Clear RIPng routes */
+ for (rp = route_top (ripng->table); rp; rp = route_next (rp)) {
+ if ((rinfo = rp->info) != NULL) {
+ if ((rinfo->type == ZEBRA_ROUTE_RIPNG) &&
+ (rinfo->sub_type == RIPNG_ROUTE_RTE))
+ ripng_zebra_ipv6_delete ((struct prefix_ipv6 *)&rp->p,
+ &rinfo->nexthop, rinfo->metric);
+
+ RIPNG_TIMER_OFF (rinfo->t_timeout);
+ RIPNG_TIMER_OFF (rinfo->t_garbage_collect);
+
+ rp->info = NULL;
+ route_unlock_node (rp);
+
+ ripng_info_free(rinfo);
+ }
+ }
+
+ /* Cancel the RIPng timers */
+ RIPNG_TIMER_OFF (ripng->t_update);
+ RIPNG_TIMER_OFF (ripng->t_triggered_update);
+ RIPNG_TIMER_OFF (ripng->t_triggered_interval);
+
+ /* Cancel the read thread */
+ if (ripng->t_read) {
+ thread_cancel (ripng->t_read);
+ ripng->t_read = NULL;
+ }
+
+ /* Close the RIPng socket */
+ if (ripng->sock >= 0) {
+ close(ripng->sock);
+ ripng->sock = -1;
+ }
+
+ /* Static RIPng route configuration. */
+ for (rp = route_top (ripng->route); rp; rp = route_next (rp))
+ if (rp->info) {
+ rp->info = NULL;
+ route_unlock_node (rp);
+ }
+
+ /* RIPng aggregated prefixes */
+ for (rp = route_top (ripng->aggregate); rp; rp = route_next (rp))
+ if (rp->info) {
+ rp->info = NULL;
+ route_unlock_node (rp);
+ }
+
+ for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
+ if (ripng->route_map[i].name)
+ free (ripng->route_map[i].name);
+
+ XFREE (MTYPE_ROUTE_TABLE, ripng->table);
+ XFREE (MTYPE_ROUTE_TABLE, ripng->route);
+ XFREE (MTYPE_ROUTE_TABLE, ripng->aggregate);
+
+ XFREE (MTYPE_RIPNG, ripng);
+ ripng = NULL;
+ } /* if (ripng) */
+
+ ripng_clean_network();
+ ripng_passive_interface_clean ();
+ ripng_offset_clean ();
+ ripng_interface_clean ();
+ ripng_redistribute_clean ();
+}
+
+/* Reset all values to the default settings. */
+void
+ripng_reset ()
+{
+ /* Call ripd related reset functions. */
+ ripng_debug_reset ();
+ ripng_route_map_reset ();
+
+ /* Call library reset functions. */
+ vty_reset ();
+ access_list_reset ();
+ prefix_list_reset ();
+
+ distribute_list_reset ();
+
+ ripng_interface_reset ();
+
+ ripng_zclient_reset ();
+}
void
ripng_if_rmap_update (struct if_rmap *if_rmap)
@@ -2468,10 +3012,13 @@ ripng_init ()
/* Install ripng commands. */
install_element (VIEW_NODE, &show_ipv6_ripng_cmd);
+ install_element (VIEW_NODE, &show_ipv6_ripng_status_cmd);
install_element (ENABLE_NODE, &show_ipv6_ripng_cmd);
+ install_element (ENABLE_NODE, &show_ipv6_ripng_status_cmd);
install_element (CONFIG_NODE, &router_ripng_cmd);
+ install_element (CONFIG_NODE, &no_router_ripng_cmd);
install_default (RIPNG_NODE);
install_element (RIPNG_NODE, &ripng_route_cmd);
@@ -2485,6 +3032,7 @@ ripng_init ()
install_element (RIPNG_NODE, &ripng_timers_cmd);
install_element (RIPNG_NODE, &no_ripng_timers_cmd);
+ install_element (RIPNG_NODE, &no_ripng_timers_val_cmd);
#if 0
install_element (RIPNG_NODE, &ripng_update_timer_cmd);
install_element (RIPNG_NODE, &no_ripng_update_timer_cmd);
@@ -2517,6 +3065,8 @@ ripng_init ()
/* Route-map for interface. */
ripng_route_map_init ();
+ ripng_offset_init ();
+
route_map_add_hook (ripng_routemap_update);
route_map_delete_hook (ripng_routemap_update);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 23:17:37 +0000