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zebra: Fix the RA send failed in netns mode

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In the rtadv_timer(), it always uses the zvrf's socket to send RA
packets. In the vrf-lite mode, it's righ since it uses the default
vrf to send the RA packets. But in the netns mode, it uses socket
in each netns. So the issue only happens in the netns mode because
the zvrf's socket may not be in the same netns as the interface's
netns. In order to compatible with both vrf-lite and netns mode,
the fix uses the if_lookup_by_index() to check whether interfaces
can use the zvrf's socket.

Signed-off-by: LEI BAO <bali.baolei@cn.ibm.com>
This commit is contained in:
LEI BAO 2021-11-05 14:05:36 +08:00
parent 9e89bcd4f4
commit 553dbdbf8e
1 changed files with 1 additions and 1 deletions
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2
zebra/rtadv.c
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@ -494,7 +494,7 @@ static int rtadv_timer(struct thread *thread)
RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id)
FOR_ALL_INTERFACES (vrf, ifp) {
if (if_is_loopback_or_vrf(ifp) || !if_is_operative(ifp)
|| ifp->vrf_id != zvrf->vrf->vrf_id)
|| if_lookup_by_index(ifp->ifindex, zvrf->vrf->vrf_id) == NULL)
continue;
zif = ifp->info;