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lib: don't crash on iface add for unknown vrf

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If Zebra sends us an interface add notification with a garbage VRF we
crash on an assert(vrf_get(vrf_id, NULL)); let's not

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
This commit is contained in:
Quentin Young 2020-03-01 17:44:12 -05:00
parent b98edbccf8
commit 229d0d4edc
1 changed files with 7 additions and 0 deletions
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7
lib/zclient.c
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@ -1763,6 +1763,13 @@ static int zclient_interface_add(struct zclient *zclient, vrf_id_t vrf_id)
STREAM_GET(ifname_tmp, s, INTERFACE_NAMSIZ); STREAM_GET(ifname_tmp, s, INTERFACE_NAMSIZ);
/* Lookup/create interface by name. */ /* Lookup/create interface by name. */
if (!vrf_get(vrf_id, NULL)) {
zlog_debug(
"Rx'd interface add from Zebra, but VRF %u does not exist",
vrf_id);
return -1;
}
ifp = if_get_by_name(ifname_tmp, vrf_id); ifp = if_get_by_name(ifname_tmp, vrf_id);
zebra_interface_if_set_value(s, ifp); zebra_interface_if_set_value(s, ifp);