diff options
Diffstat (limited to 'net/ipv4/ip_input.c')
| -rw-r--r-- | net/ipv4/ip_input.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c index 4ebc6fe..f1395a6 100644 --- a/net/ipv4/ip_input.c +++ b/net/ipv4/ip_input.c @@ -314,6 +314,7 @@ drop: } int sysctl_ip_early_demux __read_mostly = 1; +EXPORT_SYMBOL(sysctl_ip_early_demux); static int ip_rcv_finish(struct sk_buff *skb) { @@ -324,11 +325,12 @@ static int ip_rcv_finish(struct sk_buff *skb) const struct net_protocol *ipprot; int protocol = iph->protocol; - rcu_read_lock(); ipprot = rcu_dereference(inet_protos[protocol]); - if (ipprot && ipprot->early_demux) + if (ipprot && ipprot->early_demux) { ipprot->early_demux(skb); - rcu_read_unlock(); + /* must reload iph, skb->head might have changed */ + iph = ip_hdr(skb); + } } /* @@ -336,8 +338,8 @@ static int ip_rcv_finish(struct sk_buff *skb) * how the packet travels inside Linux networking. */ if (!skb_dst(skb)) { - int err = ip_route_input(skb, iph->daddr, iph->saddr, - iph->tos, skb->dev); + int err = ip_route_input_noref(skb, iph->daddr, iph->saddr, + iph->tos, skb->dev); if (unlikely(err)) { if (err == -EXDEV) NET_INC_STATS_BH(dev_net(skb->dev), |
