[NETFILTER]: ip6_tables: netns preparation

[linux-2.6-omap-h63xx.git] / net / ipv6 / netfilter / ip6table_filter.c

diff --git a/net/ipv6/netfilter/ip6table_filter.c b/net/ipv6/netfilter/ip6table_filter.c
index 1d26b202bf3017bd9abc6fc403b9dea09559d3f5..d0bf71d40cc582179ddc321759f8dfd3602e730f 100644 (file)
--- a/net/ipv6/netfilter/ip6table_filter.c
+++ b/net/ipv6/netfilter/ip6table_filter.c
@@ -17,7 +17,9 @@ MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
 MODULE_DESCRIPTION("ip6tables filter table");
 
-#define FILTER_VALID_HOOKS ((1 << NF_IP6_LOCAL_IN) | (1 << NF_IP6_FORWARD) | (1 << NF_IP6_LOCAL_OUT))
+#define FILTER_VALID_HOOKS ((1 << NF_INET_LOCAL_IN) | \
+                           (1 << NF_INET_FORWARD) | \
+                           (1 << NF_INET_LOCAL_OUT))
 
 static struct
 {
@@ -31,14 +33,14 @@ static struct
                .num_entries = 4,
                .size = sizeof(struct ip6t_standard) * 3 + sizeof(struct ip6t_error),
                .hook_entry = {
-                       [NF_IP6_LOCAL_IN] = 0,
-                       [NF_IP6_FORWARD] = sizeof(struct ip6t_standard),
-                       [NF_IP6_LOCAL_OUT] = sizeof(struct ip6t_standard) * 2
+                       [NF_INET_LOCAL_IN] = 0,
+                       [NF_INET_FORWARD] = sizeof(struct ip6t_standard),
+                       [NF_INET_LOCAL_OUT] = sizeof(struct ip6t_standard) * 2
                },
                .underflow = {
-                       [NF_IP6_LOCAL_IN] = 0,
-                       [NF_IP6_FORWARD] = sizeof(struct ip6t_standard),
-                       [NF_IP6_LOCAL_OUT] = sizeof(struct ip6t_standard) * 2
+                       [NF_INET_LOCAL_IN] = 0,
+                       [NF_INET_FORWARD] = sizeof(struct ip6t_standard),
+                       [NF_INET_LOCAL_OUT] = sizeof(struct ip6t_standard) * 2
                },
        },
        .entries = {
@@ -49,13 +51,14 @@ static struct
        .term = IP6T_ERROR_INIT,                /* ERROR */
 };
 
-static struct xt_table packet_filter = {
+static struct xt_table __packet_filter = {
        .name           = "filter",
        .valid_hooks    = FILTER_VALID_HOOKS,
        .lock           = RW_LOCK_UNLOCKED,
        .me             = THIS_MODULE,
        .af             = AF_INET6,
 };
+static struct xt_table *packet_filter;
 
 /* The work comes in here from netfilter.c. */
 static unsigned int
@@ -65,7 +68,7 @@ ip6t_hook(unsigned int hook,
         const struct net_device *out,
         int (*okfn)(struct sk_buff *))
 {
-       return ip6t_do_table(skb, hook, in, out, &packet_filter);
+       return ip6t_do_table(skb, hook, in, out, packet_filter);
 }
 
 static unsigned int
@@ -85,29 +88,29 @@ ip6t_local_out_hook(unsigned int hook,
        }
 #endif
 
-       return ip6t_do_table(skb, hook, in, out, &packet_filter);
+       return ip6t_do_table(skb, hook, in, out, packet_filter);
 }
 
-static struct nf_hook_ops ip6t_ops[] = {
+static struct nf_hook_ops ip6t_ops[] __read_mostly = {
        {
                .hook           = ip6t_hook,
                .owner          = THIS_MODULE,
                .pf             = PF_INET6,
-               .hooknum        = NF_IP6_LOCAL_IN,
+               .hooknum        = NF_INET_LOCAL_IN,
                .priority       = NF_IP6_PRI_FILTER,
        },
        {
                .hook           = ip6t_hook,
                .owner          = THIS_MODULE,
                .pf             = PF_INET6,
-               .hooknum        = NF_IP6_FORWARD,
+               .hooknum        = NF_INET_FORWARD,
                .priority       = NF_IP6_PRI_FILTER,
        },
        {
                .hook           = ip6t_local_out_hook,
                .owner          = THIS_MODULE,
                .pf             = PF_INET6,
-               .hooknum        = NF_IP6_LOCAL_OUT,
+               .hooknum        = NF_INET_LOCAL_OUT,
                .priority       = NF_IP6_PRI_FILTER,
        },
 };
@@ -129,9 +132,9 @@ static int __init ip6table_filter_init(void)
        initial_table.entries[1].target.verdict = -forward - 1;
 
        /* Register table */
-       ret = ip6t_register_table(&packet_filter, &initial_table.repl);
-       if (ret < 0)
-               return ret;
+       packet_filter = ip6t_register_table(&init_net, &__packet_filter, &initial_table.repl);
+       if (IS_ERR(packet_filter))
+               return PTR_ERR(packet_filter);
 
        /* Register hooks */
        ret = nf_register_hooks(ip6t_ops, ARRAY_SIZE(ip6t_ops));
@@ -141,14 +144,14 @@ static int __init ip6table_filter_init(void)
        return ret;
 
  cleanup_table:
-       ip6t_unregister_table(&packet_filter);
+       ip6t_unregister_table(packet_filter);
        return ret;
 }
 
 static void __exit ip6table_filter_fini(void)
 {
        nf_unregister_hooks(ip6t_ops, ARRAY_SIZE(ip6t_ops));
-       ip6t_unregister_table(&packet_filter);
+       ip6t_unregister_table(packet_filter);
 }
 
 module_init(ip6table_filter_init);