diff options
Diffstat (limited to 'net/ipv6/sit.c')
| -rw-r--r-- | net/ipv6/sit.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 19abcc9d6a1..7ee5cb96db3 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -641,11 +641,7 @@ static int ipip_rcv(struct sk_buff *skb) const struct iphdr *iph; struct ip_tunnel *tunnel; - if (iptunnel_pull_header(skb, 0, tpi.proto)) - goto drop; - iph = ip_hdr(skb); - tunnel = ipip6_tunnel_lookup(dev_net(skb->dev), skb->dev, iph->saddr, iph->daddr); if (tunnel != NULL) { @@ -655,6 +651,8 @@ static int ipip_rcv(struct sk_buff *skb) if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) goto drop; + if (iptunnel_pull_header(skb, 0, tpi.proto)) + goto drop; return ip_tunnel_rcv(tunnel, skb, &tpi, log_ecn_error); } @@ -881,6 +879,11 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb, ttl = iph6->hop_limit; tos = INET_ECN_encapsulate(tos, ipv6_get_dsfield(iph6)); + if (likely(!skb->encapsulation)) { + skb_reset_inner_headers(skb); + skb->encapsulation = 1; + } + err = iptunnel_xmit(rt, skb, fl4.saddr, fl4.daddr, IPPROTO_IPV6, tos, ttl, df, !net_eq(tunnel->net, dev_net(dev))); iptunnel_xmit_stats(err, &dev->stats, dev->tstats); |