diff options
Diffstat (limited to 'net/ipv6/xfrm6_mode_tunnel.c')
| -rw-r--r-- | net/ipv6/xfrm6_mode_tunnel.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c index 372855eeaf42..02556e356f87 100644 --- a/net/ipv6/xfrm6_mode_tunnel.c +++ b/net/ipv6/xfrm6_mode_tunnel.c @@ -36,6 +36,9 @@ static int xfrm6_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb) struct ipv6hdr *top_iph; int dsfield; + skb_set_inner_network_header(skb, skb_network_offset(skb)); + skb_set_inner_transport_header(skb, skb_transport_offset(skb)); + skb_set_network_header(skb, -x->props.header_len); skb->mac_header = skb->network_header + offsetof(struct ipv6hdr, nexthdr); @@ -96,11 +99,35 @@ out: return err; } +static struct sk_buff *xfrm6_mode_tunnel_gso_segment(struct xfrm_state *x, + struct sk_buff *skb, + netdev_features_t features) +{ + __skb_push(skb, skb->mac_len); + return skb_mac_gso_segment(skb, features); + +} + +static void xfrm6_mode_tunnel_xmit(struct xfrm_state *x, struct sk_buff *skb) +{ + struct xfrm_offload *xo = xfrm_offload(skb); + + if (xo->flags & XFRM_GSO_SEGMENT) { + skb->network_header = skb->network_header - x->props.header_len; + skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); + } + + skb_reset_mac_len(skb); + pskb_pull(skb, skb->mac_len + x->props.header_len); +} + static struct xfrm_mode xfrm6_tunnel_mode = { .input2 = xfrm6_mode_tunnel_input, .input = xfrm_prepare_input, .output2 = xfrm6_mode_tunnel_output, .output = xfrm6_prepare_output, + .gso_segment = xfrm6_mode_tunnel_gso_segment, + .xmit = xfrm6_mode_tunnel_xmit, .owner = THIS_MODULE, .encap = XFRM_MODE_TUNNEL, .flags = XFRM_MODE_FLAG_TUNNEL, |