diff options
Diffstat (limited to 'net/ipv6/xfrm6_mode_tunnel.c')
| -rw-r--r-- | net/ipv6/xfrm6_mode_tunnel.c | 31 |
1 files changed, 9 insertions, 22 deletions
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c index d45ce5d44197..f7d0d6612650 100644 --- a/net/ipv6/xfrm6_mode_tunnel.c +++ b/net/ipv6/xfrm6_mode_tunnel.c @@ -25,12 +25,6 @@ static inline void ipip6_ecn_decapsulate(struct sk_buff *skb) IP6_ECN_set_ce(inner_iph); } -static inline void ip6ip_ecn_decapsulate(struct sk_buff *skb) -{ - if (INET_ECN_is_ce(ipv6_get_dsfield(ipv6_hdr(skb)))) - IP_ECN_set_ce(ipip_hdr(skb)); -} - /* Add encapsulation header. * * The top IP header will be constructed per RFC 2401. @@ -68,10 +62,8 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb) { int err = -EINVAL; const unsigned char *old_mac; - const unsigned char *nh = skb_network_header(skb); - if (nh[IP6CB(skb)->nhoff] != IPPROTO_IPV6 && - nh[IP6CB(skb)->nhoff] != IPPROTO_IPIP) + if (XFRM_MODE_SKB_CB(skb)->protocol != IPPROTO_IPV6) goto out; if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) goto out; @@ -80,18 +72,12 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb) (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) goto out; - nh = skb_network_header(skb); - if (nh[IP6CB(skb)->nhoff] == IPPROTO_IPV6) { - if (x->props.flags & XFRM_STATE_DECAP_DSCP) - ipv6_copy_dscp(ipv6_get_dsfield(ipv6_hdr(skb)), - ipipv6_hdr(skb)); - if (!(x->props.flags & XFRM_STATE_NOECN)) - ipip6_ecn_decapsulate(skb); - } else { - if (!(x->props.flags & XFRM_STATE_NOECN)) - ip6ip_ecn_decapsulate(skb); - skb->protocol = htons(ETH_P_IP); - } + if (x->props.flags & XFRM_STATE_DECAP_DSCP) + ipv6_copy_dscp(ipv6_get_dsfield(ipv6_hdr(skb)), + ipipv6_hdr(skb)); + if (!(x->props.flags & XFRM_STATE_NOECN)) + ipip6_ecn_decapsulate(skb); + old_mac = skb_mac_header(skb); skb_set_mac_header(skb, -skb->mac_len); memmove(skb_mac_header(skb), old_mac, skb->mac_len); @@ -103,7 +89,8 @@ out: } static struct xfrm_mode xfrm6_tunnel_mode = { - .input = xfrm6_tunnel_input, + .input2 = xfrm6_tunnel_input, + .input = xfrm_prepare_input, .output2 = xfrm6_tunnel_output, .output = xfrm6_prepare_output, .owner = THIS_MODULE, |