diff options
Diffstat (limited to 'net/xfrm/xfrm_device.c')
| -rw-r--r-- | net/xfrm/xfrm_device.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c index 50f567a88f45..fa2a506c8163 100644 --- a/net/xfrm/xfrm_device.c +++ b/net/xfrm/xfrm_device.c @@ -46,6 +46,25 @@ static void __xfrm_mode_tunnel_prep(struct xfrm_state *x, struct sk_buff *skb, pskb_pull(skb, skb->mac_len + x->props.header_len); } +static void __xfrm_mode_beet_prep(struct xfrm_state *x, struct sk_buff *skb, + unsigned int hsize) +{ + struct xfrm_offload *xo = xfrm_offload(skb); + int phlen = 0; + + if (xo->flags & XFRM_GSO_SEGMENT) + skb->transport_header = skb->network_header + hsize; + + skb_reset_mac_len(skb); + if (x->sel.family != AF_INET6) { + phlen = IPV4_BEET_PHMAXLEN; + if (x->outer_mode.family == AF_INET6) + phlen += sizeof(struct ipv6hdr) - sizeof(struct iphdr); + } + + pskb_pull(skb, skb->mac_len + hsize + (x->props.header_len - phlen)); +} + /* Adjust pointers into the packet when IPsec is done at layer2 */ static void xfrm_outer_mode_prep(struct xfrm_state *x, struct sk_buff *skb) { @@ -66,9 +85,16 @@ static void xfrm_outer_mode_prep(struct xfrm_state *x, struct sk_buff *skb) return __xfrm_transport_prep(x, skb, sizeof(struct ipv6hdr)); break; + case XFRM_MODE_BEET: + if (x->outer_mode.family == AF_INET) + return __xfrm_mode_beet_prep(x, skb, + sizeof(struct iphdr)); + if (x->outer_mode.family == AF_INET6) + return __xfrm_mode_beet_prep(x, skb, + sizeof(struct ipv6hdr)); + break; case XFRM_MODE_ROUTEOPTIMIZATION: case XFRM_MODE_IN_TRIGGER: - case XFRM_MODE_BEET: break; } } |