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xfrm: Pass flowi_oif or l3mdev as oif to xfrm_dst_lookup 

The commit referenced in the Fixes tag no longer changes the
flow oif to the l3mdev ifindex. A xfrm use case was expecting
the flowi_oif to be the VRF if relevant and the change broke
that test. Update xfrm_bundle_create to pass oif if set and any
potential flowi_l3mdev if oif is not set.

Fixes: 40867d74c3 ("net: Add l3mdev index to flow struct and avoid oif reset for port devices")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
David Ahern 2022-04-01 12:58:37 -06:00 committed by Steffen Klassert
parent 692930cc43
commit 748b82c23e
1 changed files with 3 additions and 1 deletions
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4
net/xfrm/xfrm_policy.c
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@ -2593,12 +2593,14 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
if (xfrm[i]->props.mode != XFRM_MODE_TRANSPORT) {
__u32 mark = 0;
int oif;
if (xfrm[i]->props.smark.v || xfrm[i]->props.smark.m)
mark = xfrm_smark_get(fl->flowi_mark, xfrm[i]);
family = xfrm[i]->props.family;
dst = xfrm_dst_lookup(xfrm[i], tos, fl->flowi_oif,
oif = fl->flowi_oif ? : fl->flowi_l3mdev;
dst = xfrm_dst_lookup(xfrm[i], tos, oif,
&saddr, &daddr, family, mark);
err = PTR_ERR(dst);
if (IS_ERR(dst))