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vrf: Fix IPv6 with qdisc and xfrm

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[ Upstream commit a53c102872ad6e34e1518e25899dc9498c27f8b1 ]

When a qdisc is attached to the VRF device, the packet goes down the ndo
xmit function which is setup to send the packet back to the VRF driver
which does a lookup to send the packet out. The lookup in the VRF driver
is not considering xfrm policies. Change it to use ip6_dst_lookup_flow
rather than ip6_route_output.

Fixes: 35402e3136 ("net: Add IPv6 support to VRF device")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Ahern 2020-04-21 17:48:27 -06:00 • committed by Greg Kroah-Hartman
commit 07856b2108
1 changed files with 2 additions and 2 deletions
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4
drivers/net/vrf.c
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@ -188,8 +188,8 @@ static netdev_tx_t vrf_process_v6_outbound(struct sk_buff *skb,
fl6.flowi6_proto = iph->nexthdr;
fl6.flowi6_flags = FLOWI_FLAG_SKIP_NH_OIF;
dst = ip6_route_output(net, NULL, &fl6);
if (dst == dst_null)
dst = ip6_dst_lookup_flow(net, NULL, &fl6, NULL);
if (IS_ERR(dst) || dst == dst_null)
goto err;
skb_dst_drop(skb);