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Merge pull request #8060 from donaldsharp/ospf_vrf_baloney

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ospfd:  Prevent duplicate packet read in certain vrf situations
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Mark Stapp 2021-02-11 11:58:15 -05:00 committed by GitHub
commit f43e9ec02f
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1 changed files with 10 additions and 0 deletions
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ospfd/ospf_packet.c
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@ -2987,6 +2987,16 @@ static enum ospf_read_return_enum ospf_read_helper(struct ospf *ospf)
} }
} }
if (ospf->vrf_id == VRF_DEFAULT && ospf->vrf_id != ifp->vrf_id) {
/*
* We may have a situation where l3mdev_accept == 1
* let's just kindly drop the packet and move on.
* ospf really really really does not like when
* we receive the same packet multiple times.
*/
return OSPF_READ_CONTINUE;
}
/* Self-originated packet should be discarded silently. */ /* Self-originated packet should be discarded silently. */
if (ospf_if_lookup_by_local_addr(ospf, NULL, iph->ip_src)) { if (ospf_if_lookup_by_local_addr(ospf, NULL, iph->ip_src)) {
if (IS_DEBUG_OSPF_PACKET(0, RECV)) { if (IS_DEBUG_OSPF_PACKET(0, RECV)) {