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    Subject[PATCH 5.6 064/167] vrf: Fix IPv6 with qdisc and xfrm
    Date
    From: David Ahern <dsahern@gmail.com>

    [ 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: 35402e313663 ("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>
    ---
    drivers/net/vrf.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    --- a/drivers/net/vrf.c
    +++ b/drivers/net/vrf.c
    @@ -188,8 +188,8 @@ static netdev_tx_t vrf_process_v6_outbou
    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);

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