smack: use pernet operations for hook registration
It will allow us to remove the old netfilter hook api in the near future.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
diff --git a/security/smack/smack_netfilter.c b/security/smack/smack_netfilter.c
index 205b785..cdeb0f3 100644
--- a/security/smack/smack_netfilter.c
+++ b/security/smack/smack_netfilter.c
@@ -18,6 +18,7 @@
#include <linux/netfilter_ipv6.h>
#include <linux/netdevice.h>
#include <net/inet_sock.h>
+#include <net/net_namespace.h>
#include "smack.h"
#if IS_ENABLED(CONFIG_IPV6)
@@ -74,20 +75,29 @@ static struct nf_hook_ops smack_nf_ops[] = {
#endif /* IPV6 */
};
+static int __net_init smack_nf_register(struct net *net)
+{
+ return nf_register_net_hooks(net, smack_nf_ops,
+ ARRAY_SIZE(smack_nf_ops));
+}
+
+static void __net_exit smack_nf_unregister(struct net *net)
+{
+ nf_unregister_net_hooks(net, smack_nf_ops, ARRAY_SIZE(smack_nf_ops));
+}
+
+static struct pernet_operations smack_net_ops = {
+ .init = smack_nf_register,
+ .exit = smack_nf_unregister,
+};
+
static int __init smack_nf_ip_init(void)
{
- int err;
-
if (smack_enabled == 0)
return 0;
printk(KERN_DEBUG "Smack: Registering netfilter hooks\n");
-
- err = nf_register_hooks(smack_nf_ops, ARRAY_SIZE(smack_nf_ops));
- if (err)
- pr_info("Smack: nf_register_hooks: error %d\n", err);
-
- return 0;
+ return register_pernet_subsys(&smack_net_ops);
}
__initcall(smack_nf_ip_init);