diff options
Diffstat (limited to 'net/ipv6/xfrm6_mode_transport.c')
| -rw-r--r-- | net/ipv6/xfrm6_mode_transport.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c index 4439ee44c8b0..7a92c0f31912 100644 --- a/net/ipv6/xfrm6_mode_transport.c +++ b/net/ipv6/xfrm6_mode_transport.c @@ -13,6 +13,7 @@ #include <net/dst.h> #include <net/ipv6.h> #include <net/xfrm.h> +#include <net/protocol.h> /* Add encapsulation header. * @@ -26,6 +27,7 @@ static int xfrm6_transport_output(struct xfrm_state *x, struct sk_buff *skb) int hdr_len; iph = ipv6_hdr(skb); + skb_set_inner_transport_header(skb, skb_transport_offset(skb)); hdr_len = x->type->hdr_offset(x, skb, &prevhdr); skb_set_mac_header(skb, (prevhdr - x->props.header_len) - skb->data); @@ -61,9 +63,41 @@ static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb) return 0; } +static struct sk_buff *xfrm4_transport_gso_segment(struct xfrm_state *x, + struct sk_buff *skb, + netdev_features_t features) +{ + const struct net_offload *ops; + struct sk_buff *segs = ERR_PTR(-EINVAL); + struct xfrm_offload *xo = xfrm_offload(skb); + + skb->transport_header += x->props.header_len; + ops = rcu_dereference(inet6_offloads[xo->proto]); + if (likely(ops && ops->callbacks.gso_segment)) + segs = ops->callbacks.gso_segment(skb, features); + + return segs; +} + +static void xfrm6_transport_xmit(struct xfrm_state *x, struct sk_buff *skb) +{ + struct xfrm_offload *xo = xfrm_offload(skb); + + skb_reset_mac_len(skb); + pskb_pull(skb, skb->mac_len + sizeof(struct ipv6hdr) + x->props.header_len); + + if (xo->flags & XFRM_GSO_SEGMENT) { + skb_reset_transport_header(skb); + skb->transport_header -= x->props.header_len; + } +} + + static struct xfrm_mode xfrm6_transport_mode = { .input = xfrm6_transport_input, .output = xfrm6_transport_output, + .gso_segment = xfrm4_transport_gso_segment, + .xmit = xfrm6_transport_xmit, .owner = THIS_MODULE, .encap = XFRM_MODE_TRANSPORT, }; |