[NETFILTER]: Add helper functions for mass hook registration/unregistration
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 1ceb1a6..645d621 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -63,6 +63,34 @@
}
EXPORT_SYMBOL(nf_unregister_hook);
+int nf_register_hooks(struct nf_hook_ops *reg, unsigned int n)
+{
+ unsigned int i;
+ int err = 0;
+
+ for (i = 0; i < n; i++) {
+ err = nf_register_hook(®[i]);
+ if (err)
+ goto err;
+ }
+ return err;
+
+err:
+ if (i > 0)
+ nf_unregister_hooks(reg, i);
+ return err;
+}
+EXPORT_SYMBOL(nf_register_hooks);
+
+void nf_unregister_hooks(struct nf_hook_ops *reg, unsigned int n)
+{
+ unsigned int i;
+
+ for (i = 0; i < n; i++)
+ nf_unregister_hook(®[i]);
+}
+EXPORT_SYMBOL(nf_unregister_hooks);
+
unsigned int nf_iterate(struct list_head *head,
struct sk_buff **skb,
int hook,