diff options
| author | Jan Engelhardt <jengelh@medozas.de> | 2009-06-13 06:57:10 +0200 |
|---|---|---|
| committer | Jan Engelhardt <jengelh@medozas.de> | 2010-02-10 17:03:53 +0100 |
| commit | 2b21e051472fdb4680076278b2ccf63ebc1cc3bc (patch) | |
| tree | 284c85824fcc2de0016451be071f4dd2b377e9cb /net/ipv4/netfilter/iptable_filter.c | |
| parent | 737535c5cf3524e4bfaa91e22edefd52eccabbce (diff) | |
netfilter: xtables: compact table hook functions (2/2)
The calls to ip6t_do_table only show minimal differences, so it seems
like a good cleanup to merge them to a single one too.
Space saving obtained by both patches: 6807725->6807373
("Total" column from `size -A`.)
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
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 5369833ad56..1bfeaae6f62 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 = { |