[NETFILTER]: x_tables: create per-netns /proc/net/*_tables_*

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 19 insertions, 3 deletions

diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index b91738ab9f4e..bf9bb6e55bb5 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -2238,11 +2238,26 @@ static struct xt_match icmp6_matchstruct __read_mostly = {
         .family         = AF_INET6,
 };
 
+static int __net_init ip6_tables_net_init(struct net *net)
+{
+        return xt_proto_init(net, AF_INET6);
+}
+
+static void __net_exit ip6_tables_net_exit(struct net *net)
+{
+        xt_proto_fini(net, AF_INET6);
+}
+
+static struct pernet_operations ip6_tables_net_ops = {
+        .init = ip6_tables_net_init,
+        .exit = ip6_tables_net_exit,
+};
+
 static int __init ip6_tables_init(void)
 {
         int ret;
 
-        ret = xt_proto_init(AF_INET6);
+        ret = register_pernet_subsys(&ip6_tables_net_ops);
         if (ret < 0)
                 goto err1;
 
@@ -2272,7 +2287,7 @@ err4:
 err3:
         xt_unregister_target(&ip6t_standard_target);
 err2:
-        xt_proto_fini(AF_INET6);
+        unregister_pernet_subsys(&ip6_tables_net_ops);
 err1:
         return ret;
 }
@@ -2284,7 +2299,8 @@ static void __exit ip6_tables_fini(void)
         xt_unregister_match(&icmp6_matchstruct);
         xt_unregister_target(&ip6t_error_target);
         xt_unregister_target(&ip6t_standard_target);
-        xt_proto_fini(AF_INET6);
+
+        unregister_pernet_subsys(&ip6_tables_net_ops);
 }
 
 /*