diff options
Diffstat (limited to 'net/ipv4/netfilter/iptable_filter.c')
| -rw-r--r-- | net/ipv4/netfilter/iptable_filter.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/net/ipv4/netfilter/iptable_filter.c b/net/ipv4/netfilter/iptable_filter.c index 5369833ad56a..1bfeaae6f624 100644 --- a/net/ipv4/netfilter/iptable_filter.c +++ b/net/ipv4/netfilter/iptable_filter.c @@ -65,19 +65,16 @@ iptable_filter_hook(unsigned int hook, struct sk_buff *skb, const struct net_device *in, const struct net_device *out, int (*okfn)(struct sk_buff *)) { - if (hook == NF_INET_LOCAL_OUT) { - if (skb->len < sizeof(struct iphdr) || - ip_hdrlen(skb) < sizeof(struct iphdr)) - /* root is playing with raw sockets. */ - return NF_ACCEPT; - - return ipt_do_table(skb, hook, in, out, - dev_net(out)->ipv4.iptable_filter); - } + const struct net *net; + + if (hook == NF_INET_LOCAL_OUT && + (skb->len < sizeof(struct iphdr) || + ip_hdrlen(skb) < sizeof(struct iphdr))) + /* root is playing with raw sockets. */ + return NF_ACCEPT; - /* LOCAL_IN/FORWARD: */ - return ipt_do_table(skb, hook, in, out, - dev_net(in)->ipv4.iptable_filter); + net = dev_net((in != NULL) ? in : out); + return ipt_do_table(skb, hook, in, out, net->ipv4.iptable_filter); } static struct nf_hook_ops ipt_ops[] __read_mostly = { |