X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv4%2Fnetfilter%2Farptable_filter.c;h=d7c472faa53b9666449b66dda6629137b1ae1970;hb=9ea0cb2601c4747dff758a9a7a5a4a433ad527f3;hp=d0d379c7df9abdbbde9165b5fc11ec2e7f969b6b;hpb=e02a4cabfcb9a999b74a2e2e6f13ffcb7ff2d606;p=linux-2.6-omap-h63xx.git

diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index d0d379c7df9..4e9c496a30c 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/net/ipv4/netfilter/arptable_filter.c
@@ -15,128 +15,34 @@ MODULE_DESCRIPTION("arptables filter table");
 #define FILTER_VALID_HOOKS ((1 << NF_ARP_IN) | (1 << NF_ARP_OUT) | \
 			   (1 << NF_ARP_FORWARD))
 
-/* Standard entry. */
-struct arpt_standard
-{
-	struct arpt_entry entry;
-	struct arpt_standard_target target;
-};
-
-struct arpt_error_target
-{
-	struct arpt_entry_target target;
-	char errorname[ARPT_FUNCTION_MAXNAMELEN];
-};
-
-struct arpt_error
-{
-	struct arpt_entry entry;
-	struct arpt_error_target target;
-};
-
 static struct
 {
 	struct arpt_replace repl;
 	struct arpt_standard entries[3];
 	struct arpt_error term;
-} initial_table __initdata
-= { { "filter", FILTER_VALID_HOOKS, 4,
-      sizeof(struct arpt_standard) * 3 + sizeof(struct arpt_error),
-      { [NF_ARP_IN] = 0,
-	[NF_ARP_OUT] = sizeof(struct arpt_standard),
-	[NF_ARP_FORWARD] = 2 * sizeof(struct arpt_standard), },
-      { [NF_ARP_IN] = 0,
-	[NF_ARP_OUT] = sizeof(struct arpt_standard),
-	[NF_ARP_FORWARD] = 2 * sizeof(struct arpt_standard), },
-      0, NULL, { } },
-    {
-	    /* ARP_IN */
-	    {
-		    {
-			    {
-				    { 0 }, { 0 }, { 0 }, { 0 },
-				    0, 0,
-				    { { 0, }, { 0, } },
-				    { { 0, }, { 0, } },
-				    0, 0,
-				    0, 0,
-				    0, 0,
-				    "", "", { 0 }, { 0 },
-				    0, 0
-			    },
-			    sizeof(struct arpt_entry),
-			    sizeof(struct arpt_standard),
-			    0,
-			    { 0, 0 }, { } },
-		    { { { { ARPT_ALIGN(sizeof(struct arpt_standard_target)), "" } }, { } },
-		      -NF_ACCEPT - 1 }
-	    },
-	    /* ARP_OUT */
-	    {
-		    {
-			    {
-				    { 0 }, { 0 }, { 0 }, { 0 },
-				    0, 0,
-				    { { 0, }, { 0, } },
-				    { { 0, }, { 0, } },
-				    0, 0,
-				    0, 0,
-				    0, 0,
-				    "", "", { 0 }, { 0 },
-				    0, 0
-			    },
-			    sizeof(struct arpt_entry),
-			    sizeof(struct arpt_standard),
-			    0,
-			    { 0, 0 }, { } },
-		    { { { { ARPT_ALIGN(sizeof(struct arpt_standard_target)), "" } }, { } },
-		      -NF_ACCEPT - 1 }
-	    },
-	    /* ARP_FORWARD */
-	    {
-		    {
-			    {
-				    { 0 }, { 0 }, { 0 }, { 0 },
-				    0, 0,
-				    { { 0, }, { 0, } },
-				    { { 0, }, { 0, } },
-				    0, 0,
-				    0, 0,
-				    0, 0,
-				    "", "", { 0 }, { 0 },
-				    0, 0
-			    },
-			    sizeof(struct arpt_entry),
-			    sizeof(struct arpt_standard),
-			    0,
-			    { 0, 0 }, { } },
-		    { { { { ARPT_ALIGN(sizeof(struct arpt_standard_target)), "" } }, { } },
-		      -NF_ACCEPT - 1 }
-	    }
-    },
-    /* ERROR */
-    {
-	    {
-		    {
-			    { 0 }, { 0 }, { 0 }, { 0 },
-			    0, 0,
-			    { { 0, }, { 0, } },
-			    { { 0, }, { 0, } },
-			    0, 0,
-			    0, 0,
-			    0, 0,
-			    "", "", { 0 }, { 0 },
-			    0, 0
-		    },
-		    sizeof(struct arpt_entry),
-		    sizeof(struct arpt_error),
-		    0,
-		    { 0, 0 }, { } },
-	    { { { { ARPT_ALIGN(sizeof(struct arpt_error_target)), ARPT_ERROR_TARGET } },
-		{ } },
-	      "ERROR"
-	    }
-    }
+} initial_table __net_initdata = {
+	.repl = {
+		.name = "filter",
+		.valid_hooks = FILTER_VALID_HOOKS,
+		.num_entries = 4,
+		.size = sizeof(struct arpt_standard) * 3 + sizeof(struct arpt_error),
+		.hook_entry = {
+			[NF_ARP_IN] = 0,
+			[NF_ARP_OUT] = sizeof(struct arpt_standard),
+			[NF_ARP_FORWARD] = 2 * sizeof(struct arpt_standard),
+		},
+		.underflow = {
+			[NF_ARP_IN] = 0,
+			[NF_ARP_OUT] = sizeof(struct arpt_standard),
+			[NF_ARP_FORWARD] = 2 * sizeof(struct arpt_standard),
+		},
+	},
+	.entries = {
+		ARPT_STANDARD_INIT(NF_ACCEPT),	/* ARP_IN */
+		ARPT_STANDARD_INIT(NF_ACCEPT),	/* ARP_OUT */
+		ARPT_STANDARD_INIT(NF_ACCEPT),	/* ARP_FORWARD */
+	},
+	.term = ARPT_ERROR_INIT,
 };
 
 static struct arpt_table packet_filter = {
@@ -150,15 +56,15 @@ static struct arpt_table packet_filter = {
 
 /* The work comes in here from netfilter.c */
 static unsigned int arpt_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 *))
 {
-	return arpt_do_table(pskb, hook, in, out, &packet_filter, NULL);
+	return arpt_do_table(skb, hook, in, out, init_net.ipv4.arptable_filter);
 }
 
-static struct nf_hook_ops arpt_ops[] = {
+static struct nf_hook_ops arpt_ops[] __read_mostly = {
 	{
 		.hook		= arpt_hook,
 		.owner		= THIS_MODULE,
@@ -179,36 +85,48 @@ static struct nf_hook_ops arpt_ops[] = {
 	},
 };
 
+static int __net_init arptable_filter_net_init(struct net *net)
+{
+	/* Register table */
+	net->ipv4.arptable_filter =
+		arpt_register_table(net, &packet_filter, &initial_table.repl);
+	if (IS_ERR(net->ipv4.arptable_filter))
+		return PTR_ERR(net->ipv4.arptable_filter);
+	return 0;
+}
+
+static void __net_exit arptable_filter_net_exit(struct net *net)
+{
+	arpt_unregister_table(net->ipv4.arptable_filter);
+}
+
+static struct pernet_operations arptable_filter_net_ops = {
+	.init = arptable_filter_net_init,
+	.exit = arptable_filter_net_exit,
+};
+
 static int __init arptable_filter_init(void)
 {
-	int ret, i;
+	int ret;
 
-	/* Register table */
-	ret = arpt_register_table(&packet_filter, &initial_table.repl);
+	ret = register_pernet_subsys(&arptable_filter_net_ops);
 	if (ret < 0)
 		return ret;
 
-	for (i = 0; i < ARRAY_SIZE(arpt_ops); i++)
-		if ((ret = nf_register_hook(&arpt_ops[i])) < 0)
-			goto cleanup_hooks;
+	ret = nf_register_hooks(arpt_ops, ARRAY_SIZE(arpt_ops));
+	if (ret < 0)
+		goto cleanup_table;
 	return ret;
 
-cleanup_hooks:
-	while (--i >= 0)
-		nf_unregister_hook(&arpt_ops[i]);
-
-	arpt_unregister_table(&packet_filter);
+cleanup_table:
+	unregister_pernet_subsys(&arptable_filter_net_ops);
 	return ret;
 }
 
 static void __exit arptable_filter_fini(void)
 {
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(arpt_ops); i++)
-		nf_unregister_hook(&arpt_ops[i]);
-
-	arpt_unregister_table(&packet_filter);
+	nf_unregister_hooks(arpt_ops, ARRAY_SIZE(arpt_ops));
+	unregister_pernet_subsys(&arptable_filter_net_ops);
 }
 
 module_init(arptable_filter_init);