X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fnetfilter%2Fcore.c;h=292fa28146fb33cfe5beb77e70c95a4f8caa96e2;hb=90b7e1120bb43ffaabb88d28f80a0c2e13167b15;hp=e6d3a69b9e9b29614eb3d7c1a1042a558ce582bc;hpb=4c610979576d8778c401a9b1d247ed14f6cee998;p=linux-2.6

diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index e6d3a69b9e..292fa28146 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -26,10 +26,10 @@
 
 static DEFINE_MUTEX(afinfo_mutex);
 
-struct nf_afinfo *nf_afinfo[NPROTO] __read_mostly;
+const struct nf_afinfo *nf_afinfo[NPROTO] __read_mostly;
 EXPORT_SYMBOL(nf_afinfo);
 
-int nf_register_afinfo(struct nf_afinfo *afinfo)
+int nf_register_afinfo(const struct nf_afinfo *afinfo)
 {
 	int err;
 
@@ -42,7 +42,7 @@ int nf_register_afinfo(struct nf_afinfo *afinfo)
 }
 EXPORT_SYMBOL_GPL(nf_register_afinfo);
 
-void nf_unregister_afinfo(struct nf_afinfo *afinfo)
+void nf_unregister_afinfo(const struct nf_afinfo *afinfo)
 {
 	mutex_lock(&afinfo_mutex);
 	rcu_assign_pointer(nf_afinfo[afinfo->family], NULL);
@@ -51,11 +51,6 @@ void nf_unregister_afinfo(struct nf_afinfo *afinfo)
 }
 EXPORT_SYMBOL_GPL(nf_unregister_afinfo);
 
-/* In this code, we can be waiting indefinitely for userspace to
- * service a packet if a hook returns NF_QUEUE.  We could keep a count
- * of skbuffs queued for userspace, and not deregister a hook unless
- * this is zero, but that sucks.  Now, we simply check when the
- * packets come back: if the hook is gone, the packet is discarded. */
 struct list_head nf_hooks[NPROTO][NF_MAX_HOOKS] __read_mostly;
 EXPORT_SYMBOL(nf_hooks);
 static DEFINE_MUTEX(nf_hook_mutex);
@@ -170,6 +165,14 @@ int nf_hook_slow(int pf, unsigned int hook, struct sk_buff *skb,
 	unsigned int verdict;
 	int ret = 0;
 
+#ifdef CONFIG_NET_NS
+	struct net *net;
+
+	net = indev == NULL ? dev_net(outdev) : dev_net(indev);
+	if (net != &init_net)
+		return 1;
+#endif
+
 	/* We may already have this, but read-locks nest anyway */
 	rcu_read_lock();
 
@@ -183,8 +186,7 @@ next_hook:
 	} else if (verdict == NF_DROP) {
 		kfree_skb(skb);
 		ret = -EPERM;
-	} else if ((verdict & NF_VERDICT_MASK)  == NF_QUEUE) {
-		NFDEBUG("nf_hook: Verdict = QUEUE.\n");
+	} else if ((verdict & NF_VERDICT_MASK) == NF_QUEUE) {
 		if (!nf_queue(skb, elem, pf, hook, indev, outdev, okfn,
 			      verdict >> NF_VERDICT_BITS))
 			goto next_hook;
@@ -278,3 +280,12 @@ void __init netfilter_init(void)
 	if (netfilter_log_init() < 0)
 		panic("cannot initialize nf_log");
 }
+
+#ifdef CONFIG_SYSCTL
+struct ctl_path nf_net_netfilter_sysctl_path[] = {
+	{ .procname = "net", .ctl_name = CTL_NET, },
+	{ .procname = "netfilter", .ctl_name = NET_NETFILTER, },
+	{ }
+};
+EXPORT_SYMBOL_GPL(nf_net_netfilter_sysctl_path);
+#endif /* CONFIG_SYSCTL */