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vxlan: don't collect metadata if remote checksum is wrong

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call vxlan_remcsum() before md filling in vxlan_rcv()

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Fabian Frederick
2020-09-25 15:16:02 +02:00
committed by David S. Miller
parent 7470558240
commit 2ae2904b5b
1 changed files with 4 additions and 3 deletions
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drivers/net/vxlan.c
+4 -3
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@@ -1875,6 +1875,10 @@ static int vxlan_rcv(struct sock *sk, struct sk_buff *skb)
!net_eq(vxlan->net, dev_net(vxlan->dev)))) !net_eq(vxlan->net, dev_net(vxlan->dev))))
goto drop; goto drop;
if (vs->flags & VXLAN_F_REMCSUM_RX)
if (!vxlan_remcsum(&unparsed, skb, vs->flags))
goto drop;
if (vxlan_collect_metadata(vs)) { if (vxlan_collect_metadata(vs)) {
struct metadata_dst *tun_dst; struct metadata_dst *tun_dst;
@@ -1891,9 +1895,6 @@ static int vxlan_rcv(struct sock *sk, struct sk_buff *skb)
memset(md, 0, sizeof(*md)); memset(md, 0, sizeof(*md));
} }
if (vs->flags & VXLAN_F_REMCSUM_RX)
if (!vxlan_remcsum(&unparsed, skb, vs->flags))
goto drop;
if (vs->flags & VXLAN_F_GBP) if (vs->flags & VXLAN_F_GBP)
vxlan_parse_gbp_hdr(&unparsed, skb, vs->flags, md); vxlan_parse_gbp_hdr(&unparsed, skb, vs->flags, md);
/* Note that GBP and GPE can never be active together. This is /* Note that GBP and GPE can never be active together. This is