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Diffstat (limited to 'net/ipv6/sit.c')
-rw-r--r--net/ipv6/sit.c11
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);