diff options
| author | Florian Westphal <fw@strlen.de> | 2016-02-25 10:08:35 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-03-02 20:05:23 +0100 |
| commit | a67dd266adf42a24df31380e9da78390bb4d65ef (patch) | |
| tree | 50c03ebc1b9c80de06e88eb7002efe5facc369af /net/ipv4/netfilter/iptable_nat.c | |
| parent | 5f547391f5f25bb71f27860ad25bd1e4715f0752 (diff) | |
| download | op-kernel-dev-a67dd266adf42a24df31380e9da78390bb4d65ef.zip op-kernel-dev-a67dd266adf42a24df31380e9da78390bb4d65ef.tar.gz | |
netfilter: xtables: prepare for on-demand hook register
This change prepares for upcoming on-demand xtables hook registration.
We change the protoypes of the register/unregister functions.
A followup patch will then add nf_hook_register/unregister calls
to the iptables one.
Once a hook is registered packets will be picked up, so all assignments
of the form
net->ipv4.iptable_$table = new_table
have to be moved to ip(6)t_register_table, else we can see NULL
net->ipv4.iptable_$table later.
This patch doesn't change functionality; without this the actual change
simply gets too big.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/ipv4/netfilter/iptable_nat.c')
| -rw-r--r-- | net/ipv4/netfilter/iptable_nat.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/netfilter/iptable_nat.c b/net/ipv4/netfilter/iptable_nat.c index ae2cd27..e984f1d 100644 --- a/net/ipv4/netfilter/iptable_nat.c +++ b/net/ipv4/netfilter/iptable_nat.c @@ -98,18 +98,20 @@ static struct nf_hook_ops nf_nat_ipv4_ops[] __read_mostly = { static int __net_init iptable_nat_net_init(struct net *net) { struct ipt_replace *repl; + int ret; repl = ipt_alloc_initial_table(&nf_nat_ipv4_table); if (repl == NULL) return -ENOMEM; - net->ipv4.nat_table = ipt_register_table(net, &nf_nat_ipv4_table, repl); + ret = ipt_register_table(net, &nf_nat_ipv4_table, repl, + nf_nat_ipv4_ops, &net->ipv4.nat_table); kfree(repl); - return PTR_ERR_OR_ZERO(net->ipv4.nat_table); + return ret; } static void __net_exit iptable_nat_net_exit(struct net *net) { - ipt_unregister_table(net, net->ipv4.nat_table); + ipt_unregister_table(net, net->ipv4.nat_table, nf_nat_ipv4_ops); } static struct pernet_operations iptable_nat_net_ops = { |
