[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>
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 11eea39..b2c62cc 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -357,8 +357,8 @@
const char *name);
extern void xt_table_unlock(struct xt_table *t);
-extern int xt_proto_init(int af);
-extern void xt_proto_fini(int af);
+extern int xt_proto_init(struct net *net, int af);
+extern void xt_proto_fini(struct net *net, int af);
extern struct xt_table_info *xt_alloc_table_info(unsigned int size);
extern void xt_free_table_info(struct xt_table_info *info);
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 3608675..a7591ce 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -1822,11 +1822,26 @@
.owner = THIS_MODULE,
};
+static int __net_init arp_tables_net_init(struct net *net)
+{
+ return xt_proto_init(net, NF_ARP);
+}
+
+static void __net_exit arp_tables_net_exit(struct net *net)
+{
+ xt_proto_fini(net, NF_ARP);
+}
+
+static struct pernet_operations arp_tables_net_ops = {
+ .init = arp_tables_net_init,
+ .exit = arp_tables_net_exit,
+};
+
static int __init arp_tables_init(void)
{
int ret;
- ret = xt_proto_init(NF_ARP);
+ ret = register_pernet_subsys(&arp_tables_net_ops);
if (ret < 0)
goto err1;
@@ -1851,7 +1866,7 @@
err3:
xt_unregister_target(&arpt_standard_target);
err2:
- xt_proto_fini(NF_ARP);
+ unregister_pernet_subsys(&arp_tables_net_ops);
err1:
return ret;
}
@@ -1861,7 +1876,7 @@
nf_unregister_sockopt(&arpt_sockopts);
xt_unregister_target(&arpt_error_target);
xt_unregister_target(&arpt_standard_target);
- xt_proto_fini(NF_ARP);
+ unregister_pernet_subsys(&arp_tables_net_ops);
}
EXPORT_SYMBOL(arpt_register_table);
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index a73afa1..600737f 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -2213,11 +2213,26 @@
.family = AF_INET,
};
+static int __net_init ip_tables_net_init(struct net *net)
+{
+ return xt_proto_init(net, AF_INET);
+}
+
+static void __net_exit ip_tables_net_exit(struct net *net)
+{
+ xt_proto_fini(net, AF_INET);
+}
+
+static struct pernet_operations ip_tables_net_ops = {
+ .init = ip_tables_net_init,
+ .exit = ip_tables_net_exit,
+};
+
static int __init ip_tables_init(void)
{
int ret;
- ret = xt_proto_init(AF_INET);
+ ret = register_pernet_subsys(&ip_tables_net_ops);
if (ret < 0)
goto err1;
@@ -2247,7 +2262,7 @@
err3:
xt_unregister_target(&ipt_standard_target);
err2:
- xt_proto_fini(AF_INET);
+ unregister_pernet_subsys(&ip_tables_net_ops);
err1:
return ret;
}
@@ -2260,7 +2275,7 @@
xt_unregister_target(&ipt_error_target);
xt_unregister_target(&ipt_standard_target);
- xt_proto_fini(AF_INET);
+ unregister_pernet_subsys(&ip_tables_net_ops);
}
EXPORT_SYMBOL(ipt_register_table);
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index b91738a..bf9bb6e 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -2238,11 +2238,26 @@
.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 @@
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 @@
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);
}
/*
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 12ed64c..a679208 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -922,7 +922,7 @@
#endif /* CONFIG_PROC_FS */
-int xt_proto_init(int af)
+int xt_proto_init(struct net *net, int af)
{
#ifdef CONFIG_PROC_FS
char buf[XT_FUNCTION_MAXNAMELEN];
@@ -936,7 +936,7 @@
#ifdef CONFIG_PROC_FS
strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TABLES, sizeof(buf));
- proc = proc_net_fops_create(&init_net, buf, 0440, &xt_table_ops);
+ proc = proc_net_fops_create(net, buf, 0440, &xt_table_ops);
if (!proc)
goto out;
proc->data = (void *)(unsigned long)af;
@@ -944,14 +944,14 @@
strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_MATCHES, sizeof(buf));
- proc = proc_net_fops_create(&init_net, buf, 0440, &xt_match_ops);
+ proc = proc_net_fops_create(net, buf, 0440, &xt_match_ops);
if (!proc)
goto out_remove_tables;
proc->data = (void *)(unsigned long)af;
strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TARGETS, sizeof(buf));
- proc = proc_net_fops_create(&init_net, buf, 0440, &xt_target_ops);
+ proc = proc_net_fops_create(net, buf, 0440, &xt_target_ops);
if (!proc)
goto out_remove_matches;
proc->data = (void *)(unsigned long)af;
@@ -963,34 +963,34 @@
out_remove_matches:
strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_MATCHES, sizeof(buf));
- proc_net_remove(&init_net, buf);
+ proc_net_remove(net, buf);
out_remove_tables:
strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TABLES, sizeof(buf));
- proc_net_remove(&init_net, buf);
+ proc_net_remove(net, buf);
out:
return -1;
#endif
}
EXPORT_SYMBOL_GPL(xt_proto_init);
-void xt_proto_fini(int af)
+void xt_proto_fini(struct net *net, int af)
{
#ifdef CONFIG_PROC_FS
char buf[XT_FUNCTION_MAXNAMELEN];
strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TABLES, sizeof(buf));
- proc_net_remove(&init_net, buf);
+ proc_net_remove(net, buf);
strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TARGETS, sizeof(buf));
- proc_net_remove(&init_net, buf);
+ proc_net_remove(net, buf);
strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_MATCHES, sizeof(buf));
- proc_net_remove(&init_net, buf);
+ proc_net_remove(net, buf);
#endif /*CONFIG_PROC_FS*/
}
EXPORT_SYMBOL_GPL(xt_proto_fini);