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| author |   Xin Long <lucien.xin@gmail.com> | 2020-09-13 19:51:51 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-09-14 16:49:39 -0700 |
| commit | 681d2cfb790339a3e95b98bc140baf1f816a896a (patch) | |
| tree | 4eb7a4a9a92ba5e9dbcf96ce35b879738bcf6e7c /net/ipv4 | |
| parent | net: sched: only keep the available bits when setting vxlan md->gbp (diff) | |
| download | wireguard-linux-681d2cfb790339a3e95b98bc140baf1f816a896a.tar.xz wireguard-linux-681d2cfb790339a3e95b98bc140baf1f816a896a.zip | |
lwtunnel: only keep the available bits when setting vxlan md->gbp
As we can see from vxlan_build/parse_gbp_hdr(), when processing metadata
on vxlan rx/tx path, only dont_learn/policy_applied/policy_id fields can
be set to or parse from the packet for vxlan gbp option.
So do the mask when set it in lwtunnel, as it does in act_tunnel_key and
cls_flower.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_tunnel_core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c index 75c6013ff9a4..b2ea1a8c5fd6 100644 --- a/net/ipv4/ip_tunnel_core.c +++ b/net/ipv4/ip_tunnel_core.c @@ -554,6 +554,7 @@ static int ip_tun_parse_opts_vxlan(struct nlattr *attr, attr = tb[LWTUNNEL_IP_OPT_VXLAN_GBP]; md->gbp = nla_get_u32(attr); + md->gbp &= VXLAN_GBP_MASK; info->key.tun_flags |= TUNNEL_VXLAN_OPT; } |