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authorEric W. Biederman <ebiederm@xmission.com>2015-09-15 20:04:18 -0500
committerDavid S. Miller <davem@davemloft.net>2015-09-17 17:18:37 -0700
commit0c4b51f0054ce85c0ec578ab818f0631834573eb (patch)
tree73e729f58fbaf6420e0f390e36aa936ddaa219ef /net/ipv4/ip_input.c
parentnetfilter: Use nf_hook_state.net (diff)
downloadlinux-dev-0c4b51f0054ce85c0ec578ab818f0631834573eb.tar.xz
linux-dev-0c4b51f0054ce85c0ec578ab818f0631834573eb.zip
netfilter: Pass net into okfn
This is immediately motivated by the bridge code that chains functions that call into netfilter. Without passing net into the okfns the bridge code would need to guess about the best expression for the network namespace to process packets in. As net is frequently one of the first things computed in continuation functions after netfilter has done it's job passing in the desired network namespace is in many cases a code simplification. To support this change the function dst_output_okfn is introduced to simplify passing dst_output as an okfn. For the moment dst_output_okfn just silently drops the struct net. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/ipv4/ip_input.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 991d082c7312..7cc9f7bb7fb7 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -188,10 +188,8 @@ bool ip_call_ra_chain(struct sk_buff *skb)
return false;
}
-static int ip_local_deliver_finish(struct sock *sk, struct sk_buff *skb)
+static int ip_local_deliver_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
- struct net *net = dev_net(skb->dev);
-
__skb_pull(skb, skb_network_header_len(skb));
rcu_read_lock();
@@ -311,10 +309,9 @@ drop:
int sysctl_ip_early_demux __read_mostly = 1;
EXPORT_SYMBOL(sysctl_ip_early_demux);
-static int ip_rcv_finish(struct sock *sk, struct sk_buff *skb)
+static int ip_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
const struct iphdr *iph = ip_hdr(skb);
- struct net *net = dev_net(skb->dev);
struct rtable *rt;
if (sysctl_ip_early_demux && !skb_dst(skb) && !skb->sk) {