zebra: Static route does not reach kernel.
A static route like below: ip route 172.16.1.0/30 192.168.101.162 11
does not move properly to a new interface when the
interface used goes down. Zebra reports that it have
moved but kernel isn't informed so the route is lost.
* zebra_rib.c: (nexthop_active_update) if ifindex has changed, then the
route should be considered to have changed.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
diff --git a/zebra/zebra_rib.c b/zebra/zebra_rib.c
index e2108fc..e11afaf 100644
--- a/zebra/zebra_rib.c
+++ b/zebra/zebra_rib.c
@@ -905,7 +905,7 @@
nexthop_active_update (struct route_node *rn, struct rib *rib, int set)
{
struct nexthop *nexthop;
- int prev_active, new_active;
+ int prev_active, prev_index, new_active;
rib->nexthop_active_num = 0;
UNSET_FLAG (rib->flags, ZEBRA_FLAG_CHANGED);
@@ -913,9 +913,11 @@
for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
{
prev_active = CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
+ prev_index = nexthop->ifindex;
if ((new_active = nexthop_active_check (rn, rib, nexthop, set)))
rib->nexthop_active_num++;
- if (prev_active != new_active)
+ if (prev_active != new_active ||
+ prev_index != nexthop->ifindex)
SET_FLAG (rib->flags, ZEBRA_FLAG_CHANGED);
}
return rib->nexthop_active_num;