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path: root/net/ipv4/netfilter/iptable_raw.c
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Diffstat (limited to 'net/ipv4/netfilter/iptable_raw.c')
-rw-r--r--net/ipv4/netfilter/iptable_raw.c50
1 files changed, 20 insertions, 30 deletions
diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c
index 69697eb4bfc6..ca5e5b21587c 100644
--- a/net/ipv4/netfilter/iptable_raw.c
+++ b/net/ipv4/netfilter/iptable_raw.c
@@ -12,8 +12,6 @@
#define RAW_VALID_HOOKS ((1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_OUT))
-static int __net_init iptable_raw_table_init(struct net *net);
-
static bool raw_before_defrag __read_mostly;
MODULE_PARM_DESC(raw_before_defrag, "Enable raw table before defrag");
module_param(raw_before_defrag, bool, 0000);
@@ -24,7 +22,6 @@ static const struct xt_table packet_raw = {
.me = THIS_MODULE,
.af = NFPROTO_IPV4,
.priority = NF_IP_PRI_RAW,
- .table_init = iptable_raw_table_init,
};
static const struct xt_table packet_raw_before_defrag = {
@@ -33,20 +30,11 @@ static const struct xt_table packet_raw_before_defrag = {
.me = THIS_MODULE,
.af = NFPROTO_IPV4,
.priority = NF_IP_PRI_RAW_BEFORE_DEFRAG,
- .table_init = iptable_raw_table_init,
};
-/* The work comes in here from netfilter.c. */
-static unsigned int
-iptable_raw_hook(void *priv, struct sk_buff *skb,
- const struct nf_hook_state *state)
-{
- return ipt_do_table(skb, state, state->net->ipv4.iptable_raw);
-}
-
static struct nf_hook_ops *rawtable_ops __read_mostly;
-static int __net_init iptable_raw_table_init(struct net *net)
+static int iptable_raw_table_init(struct net *net)
{
struct ipt_replace *repl;
const struct xt_table *table = &packet_raw;
@@ -55,27 +43,26 @@ static int __net_init iptable_raw_table_init(struct net *net)
if (raw_before_defrag)
table = &packet_raw_before_defrag;
- if (net->ipv4.iptable_raw)
- return 0;
-
repl = ipt_alloc_initial_table(table);
if (repl == NULL)
return -ENOMEM;
- ret = ipt_register_table(net, table, repl, rawtable_ops,
- &net->ipv4.iptable_raw);
+ ret = ipt_register_table(net, table, repl, rawtable_ops);
kfree(repl);
return ret;
}
+static void __net_exit iptable_raw_net_pre_exit(struct net *net)
+{
+ ipt_unregister_table_pre_exit(net, "raw");
+}
+
static void __net_exit iptable_raw_net_exit(struct net *net)
{
- if (!net->ipv4.iptable_raw)
- return;
- ipt_unregister_table(net, net->ipv4.iptable_raw, rawtable_ops);
- net->ipv4.iptable_raw = NULL;
+ ipt_unregister_table_exit(net, "raw");
}
static struct pernet_operations iptable_raw_net_ops = {
+ .pre_exit = iptable_raw_net_pre_exit,
.exit = iptable_raw_net_exit,
};
@@ -90,22 +77,24 @@ static int __init iptable_raw_init(void)
pr_info("Enabling raw table before defrag\n");
}
- rawtable_ops = xt_hook_ops_alloc(table, iptable_raw_hook);
- if (IS_ERR(rawtable_ops))
+ ret = xt_register_template(table,
+ iptable_raw_table_init);
+ if (ret < 0)
+ return ret;
+
+ rawtable_ops = xt_hook_ops_alloc(table, ipt_do_table);
+ if (IS_ERR(rawtable_ops)) {
+ xt_unregister_template(table);
return PTR_ERR(rawtable_ops);
+ }
ret = register_pernet_subsys(&iptable_raw_net_ops);
if (ret < 0) {
+ xt_unregister_template(table);
kfree(rawtable_ops);
return ret;
}
- ret = iptable_raw_table_init(&init_net);
- if (ret) {
- unregister_pernet_subsys(&iptable_raw_net_ops);
- kfree(rawtable_ops);
- }
-
return ret;
}
@@ -113,6 +102,7 @@ static void __exit iptable_raw_fini(void)
{
unregister_pernet_subsys(&iptable_raw_net_ops);
kfree(rawtable_ops);
+ xt_unregister_template(&packet_raw);
}
module_init(iptable_raw_init);