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| author | Sabrina Dubroca <sd@queasysnail.net> | 2022-08-25 17:16:51 +0200 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2022-08-29 10:20:58 +0200 |
| commit | 26dbd66eab8080be51759e48280da04015221e22 (patch) | |
| tree | ec8ba8141c89f1966ae1eb5f8821fcf567fa2ba0 /net/ipv4/esp4_offload.c | |
| parent | ebe5555c2f34505cdb1ae5c3de8b24e33740b3e0 (diff) | |
| download | linux-26dbd66eab8080be51759e48280da04015221e22.tar.gz | |
esp: choose the correct inner protocol for GSO on inter address family tunnels
Commit 23c7f8d7989e ("net: Fix esp GSO on inter address family
tunnels.") is incomplete. It passes to skb_eth_gso_segment the
protocol for the outer IP version, instead of the inner IP version, so
we end up calling inet_gso_segment on an inner IPv6 packet and
ipv6_gso_segment on an inner IPv4 packet and the packets are dropped.
This patch completes the fix by selecting the correct protocol based
on the inner mode's family.
Fixes: c35fe4106b92 ("xfrm: Add mode handlers for IPsec on layer 2")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/ipv4/esp4_offload.c')
| -rw-r--r-- | net/ipv4/esp4_offload.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv4/esp4_offload.c b/net/ipv4/esp4_offload.c index 935026f4c807..170152772d33 100644 --- a/net/ipv4/esp4_offload.c +++ b/net/ipv4/esp4_offload.c @@ -110,7 +110,10 @@ static struct sk_buff *xfrm4_tunnel_gso_segment(struct xfrm_state *x, struct sk_buff *skb, netdev_features_t features) { - return skb_eth_gso_segment(skb, features, htons(ETH_P_IP)); + __be16 type = x->inner_mode.family == AF_INET6 ? htons(ETH_P_IPV6) + : htons(ETH_P_IP); + + return skb_eth_gso_segment(skb, features, type); } static struct sk_buff *xfrm4_transport_gso_segment(struct xfrm_state *x, |