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authorpaul <paul>2004-05-03 20:00:17 +0000
committerpaul <paul>2004-05-03 20:00:17 +0000
commita87552cdf2a54b34b0578102642e20f8e11fa754 (patch)
treec9885fbfda55ca50b83764704efd83475bfd3abe /ripd
parentc53174045b26d0a87c68d276aeca0aaca9f464ae (diff)
2004-05-03 Paul Jakma <paul@dishone.st>
* ripd.c: (rip_rte_process) fix typo in merge of previous patch and run function through indent.
Diffstat (limited to 'ripd')
-rw-r--r--ripd/ChangeLog9
-rw-r--r--ripd/ripd.c343
2 files changed, 178 insertions, 174 deletions
diff --git a/ripd/ChangeLog b/ripd/ChangeLog
index 13c34b58..9f4e1bad 100644
--- a/ripd/ChangeLog
+++ b/ripd/ChangeLog
@@ -1,7 +1,12 @@
+2004-05-03 Paul Jakma <paul@dishone.st>
+
+ * ripd.c: (rip_rte_process) fix typo in merge of previous patch
+ and run function through indent.
+
2004-03-19 Jean-Yves Simon <lethalwp@tiscali.be>
- * ripd.c: make ripd also check on administrative distance of his
- own links to update routes.
+ * ripd.c: (rip_rte_process) make ripd also check on
+ administrative distance of his own links to update routes.
2004-03-18 sowmini.varadhan@sun.com
diff --git a/ripd/ripd.c b/ripd/ripd.c
index dd9427c5..d520af0e 100644
--- a/ripd/ripd.c
+++ b/ripd/ripd.c
@@ -381,8 +381,7 @@ rip_nexthop_check (struct in_addr *addr)
/* RIP add route to routing table. */
void
rip_rte_process (struct rte *rte, struct sockaddr_in *from,
- struct interface *ifp)
-
+ struct interface *ifp)
{
int ret;
struct prefix_ipv4 p;
@@ -418,29 +417,29 @@ rip_rte_process (struct rte *rte, struct sockaddr_in *from,
memset (&newinfo, 0, sizeof (newinfo));
newinfo.type = ZEBRA_ROUTE_RIP;
newinfo.sub_type = RIP_ROUTE_RTE;
- newinfo.nexthop= rte->nexthop;
- newinfo.from = from->sin_addr;
- newinfo.ifindex= ifp->ifindex;
+ newinfo.nexthop = rte->nexthop;
+ newinfo.from = from->sin_addr;
+ newinfo.ifindex = ifp->ifindex;
newinfo.metric = rte->metric;
newinfo.metric_out = rte->metric; /* XXX */
- newinfo.tag = ntohs(rte->tag); /* XXX */
+ newinfo.tag = ntohs (rte->tag); /* XXX */
/* The object should be of the type of rip_info */
- ret = route_map_apply (ri->routemap[RIP_FILTER_IN],
- (struct prefix *)&p, RMAP_RIP, &newinfo);
+ ret = route_map_apply (ri->routemap[RIP_FILTER_IN],
+ (struct prefix *) &p, RMAP_RIP, &newinfo);
if (ret == RMAP_DENYMATCH)
- {
- if (IS_RIP_DEBUG_PACKET)
- zlog_info ("RIP %s/%d is filtered by route-map in",
- inet_ntoa (p.prefix), p.prefixlen);
- return;
- }
+ {
+ if (IS_RIP_DEBUG_PACKET)
+ zlog_info ("RIP %s/%d is filtered by route-map in",
+ inet_ntoa (p.prefix), p.prefixlen);
+ return;
+ }
/* Get back the object */
- rte->nexthop = newinfo.nexthop_out;
- rte->tag = htons(newinfo.tag_out); /* XXX */
- rte->metric = newinfo.metric_out; /* XXX: the routemap uses the metric_out field */
+ rte->nexthop = newinfo.nexthop_out;
+ 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
@@ -452,7 +451,7 @@ rip_rte_process (struct rte *rte, struct sockaddr_in *from,
/* If offset-list does not modify the metric use interface's
metric. */
- if (! ret)
+ if (!ret)
rte->metric += ifp->metric;
if (rte->metric > RIP_METRIC_INFINITY)
@@ -468,7 +467,7 @@ rip_rte_process (struct rte *rte, struct sockaddr_in *from,
if (rip_nexthop_check (nexthop) < 0)
{
if (IS_RIP_DEBUG_PACKET)
- zlog_info ("Nexthop address %s is myself", inet_ntoa (*nexthop));
+ zlog_info ("Nexthop address %s is myself", inet_ntoa (*nexthop));
return;
}
@@ -482,191 +481,191 @@ rip_rte_process (struct rte *rte, struct sockaddr_in *from,
{
/* Redistributed route check. */
if (rinfo->type != ZEBRA_ROUTE_RIP
- && rinfo->metric != RIP_METRIC_INFINITY)
- return;
+ && rinfo->metric != RIP_METRIC_INFINITY)
+ return;
/* Local static route. */
if (rinfo->type == ZEBRA_ROUTE_RIP
- && ((rinfo->sub_type == RIP_ROUTE_STATIC) ||
- (rinfo->sub_type == RIP_ROUTE_DEFAULT))
- && rinfo->metric != RIP_METRIC_INFINITY)
- return;
+ && ((rinfo->sub_type == RIP_ROUTE_STATIC) ||
+ (rinfo->sub_type == RIP_ROUTE_DEFAULT))
+ && rinfo->metric != RIP_METRIC_INFINITY)
+ return;
}
-
- if (! rinfo)
+
+ if (!rinfo)
{
/* Now, check to see whether there is already an explicit route
- for the destination prefix. If there is no such route, add
- this route to the routing table, unless the metric is
- infinity (there is no point in adding a route which
- unusable). */
+ for the destination prefix. If there is no such route, add
+ this route to the routing table, unless the metric is
+ infinity (there is no point in adding a route which
+ unusable). */
if (rte->metric != RIP_METRIC_INFINITY)
- {
- rinfo = rip_info_new ();
-
- /* - Setting the destination prefix and length to those in
- the RTE. */
- rinfo->rp = rp;
-
- /* - Setting the metric to the newly calculated metric (as
- described above). */
- rinfo->metric = rte->metric;
- rinfo->tag = ntohs (rte->tag);
-
- /* - Set the next hop address to be the address of the router
- from which the datagram came or the next hop address
- specified by a next hop RTE. */
- IPV4_ADDR_COPY (&rinfo->nexthop, nexthop);
- IPV4_ADDR_COPY (&rinfo->from, &from->sin_addr);
- rinfo->ifindex = ifp->ifindex;
-
- /* - Initialize the timeout for the route. If the
- garbage-collection timer is running for this route, stop it
- (see section 2.3 for a discussion of the timers). */
- rip_timeout_update (rinfo);
-
- /* - Set the route change flag. */
- rinfo->flags |= RIP_RTF_CHANGED;
-
- /* - Signal the output process to trigger an update (see section
- 2.5). */
- rip_event (RIP_TRIGGERED_UPDATE, 0);
-
- /* Finally, route goes into the kernel. */
- rinfo->type = ZEBRA_ROUTE_RIP;
- rinfo->sub_type = RIP_ROUTE_RTE;
-
- /* Set distance value. */
- rinfo->distance = rip_distance_apply (rinfo);
-
- rp->info = rinfo;
- rip_zebra_ipv4_add (&p, &rinfo->nexthop, rinfo->metric,
- rinfo->distance);
- rinfo->flags |= RIP_RTF_FIB;
- }
+ {
+ rinfo = rip_info_new ();
+
+ /* - Setting the destination prefix and length to those in
+ the RTE. */
+ rinfo->rp = rp;
+
+ /* - Setting the metric to the newly calculated metric (as
+ described above). */
+ rinfo->metric = rte->metric;
+ rinfo->tag = ntohs (rte->tag);
+
+ /* - Set the next hop address to be the address of the router
+ from which the datagram came or the next hop address
+ specified by a next hop RTE. */
+ IPV4_ADDR_COPY (&rinfo->nexthop, nexthop);
+ IPV4_ADDR_COPY (&rinfo->from, &from->sin_addr);
+ rinfo->ifindex = ifp->ifindex;
+
+ /* - Initialize the timeout for the route. If the
+ garbage-collection timer is running for this route, stop it
+ (see section 2.3 for a discussion of the timers). */
+ rip_timeout_update (rinfo);
+
+ /* - Set the route change flag. */
+ rinfo->flags |= RIP_RTF_CHANGED;
+
+ /* - Signal the output process to trigger an update (see section
+ 2.5). */
+ rip_event (RIP_TRIGGERED_UPDATE, 0);
+
+ /* Finally, route goes into the kernel. */
+ rinfo->type = ZEBRA_ROUTE_RIP;
+ rinfo->sub_type = RIP_ROUTE_RTE;
+
+ /* Set distance value. */
+ rinfo->distance = rip_distance_apply (rinfo);
+
+ rp->info = rinfo;
+ rip_zebra_ipv4_add (&p, &rinfo->nexthop, rinfo->metric,
+ rinfo->distance);
+ rinfo->flags |= RIP_RTF_FIB;
+ }
}
else
{
/* Route is there but we are not sure the route is RIP or not. */
rinfo = rp->info;
-
+
/* If there is an existing route, compare the next hop address
- to the address of the router from which the datagram came.
- If this datagram is from the same router as the existing
- route, reinitialize the timeout. */
+ to the address of the router from which the datagram came.
+ If this datagram is from the same router as the existing
+ route, reinitialize the timeout. */
same = (IPV4_ADDR_SAME (&rinfo->from, &from->sin_addr)
- && (rinfo->ifindex == ifp->ifindex));
+ && (rinfo->ifindex == ifp->ifindex));
if (same)
- rip_timeout_update (rinfo);
+ rip_timeout_update (rinfo);
/* Fill in a minimaly temporary rip_info structure, for a future
rip_distance_apply() use) */
- memset (&rinfo,0,sizeof(rinfotmp));
+ memset (&rinfotmp, 0, sizeof (rinfotmp));
IPV4_ADDR_COPY (&rinfotmp.from, &from->sin_addr);
- rinfotmp.rp=rinfo->rp;
+ rinfotmp.rp = rinfo->rp;
/* Next, compare the metrics. If the datagram is from the same
- router as the existing route, and the new metric is different
- than the old one; or, if the new metric is lower than the old
- one, or if the tag has been changed; or if there is a route
- with a lower administrave distance; or an update of the
- distance on the actual route; do the following actions: */
- if (( same && rinfo->metric != rte->metric )
- || ( rte->metric < rinfo->metric )
- || ( (same)
- && (rinfo->metric == rte->metric)
- && ntohs(rte->tag) != rinfo->tag )
- || ( rinfo->distance > rip_distance_apply (&rinfotmp) )
- || ( (rinfo->distance != rip_distance_apply (rinfo)) && same ))
- {
- /* - Adopt the route from the datagram. That is, put the
- new metric in, and adjust the next hop address (if
- necessary). */
- oldmetric = rinfo->metric;
- rinfo->metric = rte->metric;
- rinfo->tag = ntohs (rte->tag);
- IPV4_ADDR_COPY (&rinfo->from, &from->sin_addr);
- rinfo->ifindex = ifp->ifindex;
- rinfo->distance = rip_distance_apply (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. */
-
- if (oldmetric == RIP_METRIC_INFINITY &&
- rinfo->metric < RIP_METRIC_INFINITY)
- {
- rinfo->type = ZEBRA_ROUTE_RIP;
- rinfo->sub_type = RIP_ROUTE_RTE;
+ router as the existing route, and the new metric is different
+ than the old one; or, if the new metric is lower than the old
+ one, or if the tag has been changed; or if there is a route
+ with a lower administrave distance; or an update of the
+ distance on the actual route; do the following actions: */
+ if ((same && rinfo->metric != rte->metric)
+ || (rte->metric < rinfo->metric)
+ || ((same)
+ && (rinfo->metric == rte->metric)
+ && ntohs (rte->tag) != rinfo->tag)
+ || (rinfo->distance > rip_distance_apply (&rinfotmp))
+ || ((rinfo->distance != rip_distance_apply (rinfo)) && same))
+ {
+ /* - Adopt the route from the datagram. That is, put the
+ new metric in, and adjust the next hop address (if
+ necessary). */
+ oldmetric = rinfo->metric;
+ rinfo->metric = rte->metric;
+ rinfo->tag = ntohs (rte->tag);
+ IPV4_ADDR_COPY (&rinfo->from, &from->sin_addr);
+ rinfo->ifindex = ifp->ifindex;
+ rinfo->distance = rip_distance_apply (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. */
+
+ if (oldmetric == RIP_METRIC_INFINITY &&
+ rinfo->metric < RIP_METRIC_INFINITY)
+ {
+ rinfo->type = ZEBRA_ROUTE_RIP;
+ rinfo->sub_type = RIP_ROUTE_RTE;
- RIP_TIMER_OFF (rinfo->t_garbage_collect);
+ RIP_TIMER_OFF (rinfo->t_garbage_collect);
- if (! IPV4_ADDR_SAME (&rinfo->nexthop, nexthop))
- IPV4_ADDR_COPY (&rinfo->nexthop, nexthop);
+ if (!IPV4_ADDR_SAME (&rinfo->nexthop, nexthop))
+ IPV4_ADDR_COPY (&rinfo->nexthop, nexthop);
- rip_zebra_ipv4_add (&p, nexthop, rinfo->metric,
- rinfo->distance);
- rinfo->flags |= RIP_RTF_FIB;
- }
+ rip_zebra_ipv4_add (&p, nexthop, rinfo->metric,
+ rinfo->distance);
+ rinfo->flags |= RIP_RTF_FIB;
+ }
- /* Update nexthop and/or metric value. */
- if (oldmetric != RIP_METRIC_INFINITY)
- {
- rip_zebra_ipv4_delete (&p, &rinfo->nexthop, oldmetric);
- rip_zebra_ipv4_add (&p, nexthop, rinfo->metric,
- rinfo->distance);
- rinfo->flags |= RIP_RTF_FIB;
+ /* Update nexthop and/or metric value. */
+ if (oldmetric != RIP_METRIC_INFINITY)
+ {
+ rip_zebra_ipv4_delete (&p, &rinfo->nexthop, oldmetric);
+ rip_zebra_ipv4_add (&p, nexthop, rinfo->metric,
+ rinfo->distance);
+ rinfo->flags |= RIP_RTF_FIB;
- if (! IPV4_ADDR_SAME (&rinfo->nexthop, nexthop))
- IPV4_ADDR_COPY (&rinfo->nexthop, nexthop);
- }
+ if (!IPV4_ADDR_SAME (&rinfo->nexthop, nexthop))
+ IPV4_ADDR_COPY (&rinfo->nexthop, nexthop);
+ }
- /* - Set the route change flag and signal the output process
- to trigger an update. */
- rinfo->flags |= RIP_RTF_CHANGED;
- rip_event (RIP_TRIGGERED_UPDATE, 0);
+ /* - Set the route change flag and signal the output process
+ to trigger an update. */
+ rinfo->flags |= RIP_RTF_CHANGED;
+ rip_event (RIP_TRIGGERED_UPDATE, 0);
- /* - If the new metric is infinity, start the deletion
- process (described above); */
- if (rinfo->metric == RIP_METRIC_INFINITY)
- {
- /* If the new metric is infinity, the deletion process
- begins for the route, which is no longer used for
- routing packets. Note that the deletion process is
- started only when the metric is first set to
- infinity. If the metric was already infinity, then a
- new deletion process is not started. */
- if (oldmetric != RIP_METRIC_INFINITY)
- {
- /* - The garbage-collection timer is set for 120 seconds. */
- RIP_TIMER_ON (rinfo->t_garbage_collect,
- rip_garbage_collect, rip->garbage_time);
- RIP_TIMER_OFF (rinfo->t_timeout);
-
- /* - The metric for the route is set to 16
- (infinity). This causes the route to be removed
- from service.*/
- rip_zebra_ipv4_delete (&p, &rinfo->nexthop, oldmetric);
- rinfo->flags &= ~RIP_RTF_FIB;
-
- /* - The route change flag is to indicate that this
- entry has been changed. */
- /* - The output process is signalled to trigger a
+ /* - If the new metric is infinity, start the deletion
+ process (described above); */
+ if (rinfo->metric == RIP_METRIC_INFINITY)
+ {
+ /* If the new metric is infinity, the deletion process
+ begins for the route, which is no longer used for
+ routing packets. Note that the deletion process is
+ started only when the metric is first set to
+ infinity. If the metric was already infinity, then a
+ new deletion process is not started. */
+ if (oldmetric != RIP_METRIC_INFINITY)
+ {
+ /* - The garbage-collection timer is set for 120 seconds. */
+ RIP_TIMER_ON (rinfo->t_garbage_collect,
+ rip_garbage_collect, rip->garbage_time);
+ RIP_TIMER_OFF (rinfo->t_timeout);
+
+ /* - The metric for the route is set to 16
+ (infinity). This causes the route to be removed
+ from service. */
+ rip_zebra_ipv4_delete (&p, &rinfo->nexthop, oldmetric);
+ rinfo->flags &= ~RIP_RTF_FIB;
+
+ /* - The route change flag is to indicate that this
+ entry has been changed. */
+ /* - The output process is signalled to trigger a
response. */
- ; /* Above processes are already done previously. */
- }
- }
- else
- {
- /* otherwise, re-initialize the timeout. */
- rip_timeout_update (rinfo);
- }
- }
+ ; /* Above processes are already done previously. */
+ }
+ }
+ else
+ {
+ /* otherwise, re-initialize the timeout. */
+ rip_timeout_update (rinfo);
+ }
+ }
/* Unlock tempolary lock of the route. */
route_unlock_node (rp);
}