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
{
struct ip6t_replace repl;
struct ip6t_standard entries[3];
struct ip6t_error term;
-} initial_table __initdata = {
+} initial_table __net_initdata = {
.repl = {
.name = "filter",
.valid_hooks = FILTER_VALID_HOOKS,
.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 = {
.term = IP6T_ERROR_INIT, /* ERROR */
};
-static struct xt_table packet_filter = {
+static const struct xt_table packet_filter = {
.name = "filter",
.valid_hooks = FILTER_VALID_HOOKS,
- .lock = RW_LOCK_UNLOCKED,
.me = THIS_MODULE,
- .af = AF_INET6,
+ .af = NFPROTO_IPV6,
};
/* The work comes in here from netfilter.c. */
static unsigned int
-ip6t_hook(unsigned int hook,
- struct sk_buff **pskb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+ip6t_in_hook(unsigned int hook,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ int (*okfn)(struct sk_buff *))
{
- return ip6t_do_table(pskb, hook, in, out, &packet_filter);
+ return ip6t_do_table(skb, hook, in, out,
+ dev_net(in)->ipv6.ip6table_filter);
}
static unsigned int
ip6t_local_out_hook(unsigned int hook,
- struct sk_buff **pskb,
+ struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
#if 0
/* root is playing with raw sockets. */
- if ((*pskb)->len < sizeof(struct iphdr)
- || ip_hdrlen(*pskb) < sizeof(struct iphdr)) {
+ if (skb->len < sizeof(struct iphdr) ||
+ ip_hdrlen(skb) < sizeof(struct iphdr)) {
if (net_ratelimit())
printk("ip6t_hook: happy cracking.\n");
return NF_ACCEPT;
}
#endif
- return ip6t_do_table(pskb, hook, in, out, &packet_filter);
+ return ip6t_do_table(skb, hook, in, out,
+ dev_net(out)->ipv6.ip6table_filter);
}
-static struct nf_hook_ops ip6t_ops[] = {
+static struct nf_hook_ops ip6t_ops[] __read_mostly = {
{
- .hook = ip6t_hook,
+ .hook = ip6t_in_hook,
.owner = THIS_MODULE,
- .pf = PF_INET6,
- .hooknum = NF_IP6_LOCAL_IN,
+ .pf = NFPROTO_IPV6,
+ .hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP6_PRI_FILTER,
},
{
- .hook = ip6t_hook,
+ .hook = ip6t_in_hook,
.owner = THIS_MODULE,
- .pf = PF_INET6,
- .hooknum = NF_IP6_FORWARD,
+ .pf = NFPROTO_IPV6,
+ .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,
+ .pf = NFPROTO_IPV6,
+ .hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP6_PRI_FILTER,
},
};
static int forward = NF_ACCEPT;
module_param(forward, bool, 0000);
+static int __net_init ip6table_filter_net_init(struct net *net)
+{
+ /* Register table */
+ net->ipv6.ip6table_filter =
+ ip6t_register_table(net, &packet_filter, &initial_table.repl);
+ if (IS_ERR(net->ipv6.ip6table_filter))
+ return PTR_ERR(net->ipv6.ip6table_filter);
+ return 0;
+}
+
+static void __net_exit ip6table_filter_net_exit(struct net *net)
+{
+ ip6t_unregister_table(net->ipv6.ip6table_filter);
+}
+
+static struct pernet_operations ip6table_filter_net_ops = {
+ .init = ip6table_filter_net_init,
+ .exit = ip6table_filter_net_exit,
+};
+
static int __init ip6table_filter_init(void)
{
int ret;
/* Entry 1 is the FORWARD hook */
initial_table.entries[1].target.verdict = -forward - 1;
- /* Register table */
- ret = ip6t_register_table(&packet_filter, &initial_table.repl);
+ ret = register_pernet_subsys(&ip6table_filter_net_ops);
if (ret < 0)
return ret;
return ret;
cleanup_table:
- ip6t_unregister_table(&packet_filter);
+ unregister_pernet_subsys(&ip6table_filter_net_ops);
return ret;
}
static void __exit ip6table_filter_fini(void)
{
nf_unregister_hooks(ip6t_ops, ARRAY_SIZE(ip6t_ops));
- ip6t_unregister_table(&packet_filter);
+ unregister_pernet_subsys(&ip6table_filter_net_ops);
}
module_init(ip6table_filter_init);