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zebra: Static route does not reach kernel.

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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>
This commit is contained in:
Joakim Tjernlund 2009-06-24 19:15:36 +02:00 committed by Paul Jakma
parent 3f4ab7f9e9
commit c3a5606302
1 changed files with 4 additions and 2 deletions
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6
zebra/zebra_rib.c
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@ -905,7 +905,7 @@ static int
nexthop_active_update (struct route_node *rn, struct rib *rib, int set) nexthop_active_update (struct route_node *rn, struct rib *rib, int set)
{ {
struct nexthop *nexthop; struct nexthop *nexthop;
int prev_active, new_active; int prev_active, prev_index, new_active;
rib->nexthop_active_num = 0; rib->nexthop_active_num = 0;
UNSET_FLAG (rib->flags, ZEBRA_FLAG_CHANGED); UNSET_FLAG (rib->flags, ZEBRA_FLAG_CHANGED);
@ -913,9 +913,11 @@ nexthop_active_update (struct route_node *rn, struct rib *rib, int set)
for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
{ {
prev_active = CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE); prev_active = CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
prev_index = nexthop->ifindex;
if ((new_active = nexthop_active_check (rn, rib, nexthop, set))) if ((new_active = nexthop_active_check (rn, rib, nexthop, set)))
rib->nexthop_active_num++; 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); SET_FLAG (rib->flags, ZEBRA_FLAG_CHANGED);
} }
return rib->nexthop_active_num; return rib->nexthop_active_num;