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ripd: considering a interface with 2 or more IP

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This commit fixes these three issues:

1) rinfo is used for rip packet sending not tmp_rinfo
2) With RIP_SPLIT_HORIZON and an interface with more than 1 ip addresses
we will not send the routes out an interface that they originate on
3) With RIP_SPLIT_HORIZON_POISONED_REVERSE and an interface with
more than 1 ip address we will not send out ipA with a metric of 16
and ipb with a metric of 1.  Both will be 16 now.

Signed-off-by: lyq140 <34637052+lyq140@users.noreply.github.com>
This commit is contained in:
lyq140 2018-03-21 07:46:36 -04:00 committed by Donald Sharp
parent 1af416bc25
commit 9920df072a
1 changed files with 27 additions and 9 deletions
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36
ripd/ripd.c
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@ -2186,6 +2186,7 @@ void rip_output_process(struct connected *ifc, struct sockaddr_in *to,
*/
int suppress = 0;
struct rip_info *tmp_rinfo = NULL;
struct connected *tmp_ifc = NULL;
for (ALL_LIST_ELEMENTS_RO(list, listnode,
tmp_rinfo))
@ -2197,10 +2198,17 @@ void rip_output_process(struct connected *ifc, struct sockaddr_in *to,
}
if (!suppress
&& rinfo->type == ZEBRA_ROUTE_CONNECT
&& prefix_match((struct prefix *)p,
ifc->address))
suppress = 1;
&& rinfo->type == ZEBRA_ROUTE_CONNECT) {
for (ALL_LIST_ELEMENTS_RO(
ifc->ifp->connected,
listnode, tmp_ifc))
if (prefix_match(
(struct prefix *)p,
tmp_ifc->address)) {
suppress = 1;
break;
}
}
if (suppress)
continue;
@ -2311,19 +2319,29 @@ void rip_output_process(struct connected *ifc, struct sockaddr_in *to,
* configured on the same interface).
*/
struct rip_info *tmp_rinfo = NULL;
struct connected *tmp_ifc = NULL;
for (ALL_LIST_ELEMENTS_RO(list, listnode,
tmp_rinfo))
if (tmp_rinfo->type == ZEBRA_ROUTE_RIP
&& tmp_rinfo->nh.ifindex
== ifc->ifp->ifindex)
tmp_rinfo->metric_out =
rinfo->metric_out =
RIP_METRIC_INFINITY;
if (rinfo->type == ZEBRA_ROUTE_CONNECT
&& prefix_match((struct prefix *)p,
ifc->address))
rinfo->metric_out = RIP_METRIC_INFINITY;
if (rinfo->metric_out != RIP_METRIC_INFINITY
&& rinfo->type == ZEBRA_ROUTE_CONNECT) {
for (ALL_LIST_ELEMENTS_RO(
ifc->ifp->connected,
listnode, tmp_ifc))
if (prefix_match(
(struct prefix *)p,
tmp_ifc->address)) {
rinfo->metric_out =
RIP_METRIC_INFINITY;
break;
}
}
}
/* Prepare preamble, auth headers, if needs be */