From a7c439d3968e67c426f75fe7d455f214e52f1ab0 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Mon, 28 May 2012 21:04:17 +0000
Subject: [PATCH] netfilter: nf_ct_ipv6: add namespace support
This patch adds namespace support for IPv6 protocol tracker.
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
.../netfilter/nf_conntrack_l3proto_ipv6.c | 88 +++++++++++++------
1 file changed, 59 insertions(+), 29 deletions(-)
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index 7334cbfd60031..fca10da80ea79 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -333,37 +333,75 @@ MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET6));
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Yasuyuki KOZAKAI @USAGI <yasuyuki.kozakai@toshiba.co.jp>");
-static int __init nf_conntrack_l3proto_ipv6_init(void)
+static int ipv6_net_init(struct net *net)
{
int ret = 0;
- need_conntrack();
- nf_defrag_ipv6_enable();
-
- ret = nf_conntrack_l4proto_register(&init_net, &nf_conntrack_l4proto_tcp6);
+ ret = nf_conntrack_l4proto_register(net,
+ &nf_conntrack_l4proto_tcp6);
if (ret < 0) {
- pr_err("nf_conntrack_ipv6: can't register tcp.\n");
- return ret;
+ printk(KERN_ERR "nf_conntrack_l4proto_tcp6: protocol register failed\n");
+ goto out;
}
-
- ret = nf_conntrack_l4proto_register(&init_net, &nf_conntrack_l4proto_udp6);
+ ret = nf_conntrack_l4proto_register(net,
+ &nf_conntrack_l4proto_udp6);
if (ret < 0) {
- pr_err("nf_conntrack_ipv6: can't register udp.\n");
- goto cleanup_tcp;
+ printk(KERN_ERR "nf_conntrack_l4proto_udp6: protocol register failed\n");
+ goto cleanup_tcp6;
}
-
- ret = nf_conntrack_l4proto_register(&init_net, &nf_conntrack_l4proto_icmpv6);
+ ret = nf_conntrack_l4proto_register(net,
+ &nf_conntrack_l4proto_icmpv6);
if (ret < 0) {
- pr_err("nf_conntrack_ipv6: can't register icmpv6.\n");
- goto cleanup_udp;
+ printk(KERN_ERR "nf_conntrack_l4proto_icmp6: protocol register failed\n");
+ goto cleanup_udp6;
}
-
- ret = nf_conntrack_l3proto_register(&init_net, &nf_conntrack_l3proto_ipv6);
+ ret = nf_conntrack_l3proto_register(net,
+ &nf_conntrack_l3proto_ipv6);
if (ret < 0) {
- pr_err("nf_conntrack_ipv6: can't register ipv6\n");
+ printk(KERN_ERR "nf_conntrack_l3proto_ipv6: protocol register failed\n");
goto cleanup_icmpv6;
}
+ return 0;
+ cleanup_icmpv6:
+ nf_conntrack_l4proto_unregister(net,
+ &nf_conntrack_l4proto_icmpv6);
+ cleanup_udp6:
+ nf_conntrack_l4proto_unregister(net,
+ &nf_conntrack_l4proto_udp6);
+ cleanup_tcp6:
+ nf_conntrack_l4proto_unregister(net,
+ &nf_conntrack_l4proto_tcp6);
+ out:
+ return ret;
+}
+static void ipv6_net_exit(struct net *net)
+{
+ nf_conntrack_l3proto_unregister(net,
+ &nf_conntrack_l3proto_ipv6);
+ nf_conntrack_l4proto_unregister(net,
+ &nf_conntrack_l4proto_icmpv6);
+ nf_conntrack_l4proto_unregister(net,
+ &nf_conntrack_l4proto_udp6);
+ nf_conntrack_l4proto_unregister(net,
+ &nf_conntrack_l4proto_tcp6);
+}
+
+static struct pernet_operations ipv6_net_ops = {
+ .init = ipv6_net_init,
+ .exit = ipv6_net_exit,
+};
+
+static int __init nf_conntrack_l3proto_ipv6_init(void)
+{
+ int ret = 0;
+
+ need_conntrack();
+ nf_defrag_ipv6_enable();
+
+ ret = register_pernet_subsys(&ipv6_net_ops);
+ if (ret < 0)
+ goto cleanup_pernet;
ret = nf_register_hooks(ipv6_conntrack_ops,
ARRAY_SIZE(ipv6_conntrack_ops));
if (ret < 0) {
@@ -374,13 +412,8 @@ static int __init nf_conntrack_l3proto_ipv6_init(void)
return ret;
cleanup_ipv6:
- nf_conntrack_l3proto_unregister(&init_net, &nf_conntrack_l3proto_ipv6);
- cleanup_icmpv6:
- nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_icmpv6);
- cleanup_udp:
- nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_udp6);
- cleanup_tcp:
- nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_tcp6);
+ unregister_pernet_subsys(&ipv6_net_ops);
+ cleanup_pernet:
return ret;
}
@@ -388,10 +421,7 @@ static void __exit nf_conntrack_l3proto_ipv6_fini(void)
{
synchronize_net();
nf_unregister_hooks(ipv6_conntrack_ops, ARRAY_SIZE(ipv6_conntrack_ops));
- nf_conntrack_l3proto_unregister(&init_net, &nf_conntrack_l3proto_ipv6);
- nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_icmpv6);
- nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_udp6);
- nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_tcp6);
+ unregister_pernet_subsys(&ipv6_net_ops);
}
module_init(nf_conntrack_l3proto_ipv6_init);
--
2.30.2