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zebra: handle blackholes encountered in recursive resolution

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Signed-off-by: Christian Franke <chris@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This commit is contained in:
Christian Franke 2013-07-05 15:35:38 +00:00 committed by David Lamparter
parent fa713d9ee5
commit 48a53dc71c
1 changed files with 12 additions and 0 deletions
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12
zebra/zebra_rib.c
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@ -472,6 +472,12 @@ nexthop_active_ipv4 (struct rib *rib, struct nexthop *nexthop, int set,
}
else
{
/* If the longest prefix match for the nexthop yields
* a blackhole, mark it as inactive. */
if (CHECK_FLAG (match->flags, ZEBRA_FLAG_BLACKHOLE)
|| CHECK_FLAG (match->flags, ZEBRA_FLAG_REJECT))
return 0;
if (match->type == ZEBRA_ROUTE_CONNECT)
{
/* Directly point connected route. */
@ -587,6 +593,12 @@ nexthop_active_ipv6 (struct rib *rib, struct nexthop *nexthop, int set,
}
else
{
/* If the longest prefix match for the nexthop yields
* a blackhole, mark it as inactive. */
if (CHECK_FLAG (match->flags, ZEBRA_FLAG_BLACKHOLE)
|| CHECK_FLAG (match->flags, ZEBRA_FLAG_REJECT))
return 0;
if (match->type == ZEBRA_ROUTE_CONNECT)
{
/* Directly point connected route. */