From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 net/bridge/netfilter/ebtable_broute.c | 86 +++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 net/bridge/netfilter/ebtable_broute.c

(limited to 'net/bridge/netfilter/ebtable_broute.c')

diff --git a/net/bridge/netfilter/ebtable_broute.c b/net/bridge/netfilter/ebtable_broute.c
new file mode 100644
index 0000000..1767c94
--- /dev/null
+++ b/net/bridge/netfilter/ebtable_broute.c
@@ -0,0 +1,86 @@
+/*
+ *  ebtable_broute
+ *
+ *	Authors:
+ *	Bart De Schuymer <bdschuym@pandora.be>
+ *
+ *  April, 2002
+ *
+ *  This table lets you choose between routing and bridging for frames
+ *  entering on a bridge enslaved nic. This table is traversed before any
+ *  other ebtables table. See net/bridge/br_input.c.
+ */
+
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/module.h>
+#include <linux/if_bridge.h>
+
+/* EBT_ACCEPT means the frame will be bridged
+ * EBT_DROP means the frame will be routed
+ */
+static struct ebt_entries initial_chain = {
+	.name		= "BROUTING",
+	.policy		= EBT_ACCEPT,
+};
+
+static struct ebt_replace initial_table =
+{
+	.name		= "broute",
+	.valid_hooks	= 1 << NF_BR_BROUTING,
+	.entries_size	= sizeof(struct ebt_entries),
+	.hook_entry	= {
+		[NF_BR_BROUTING]	= &initial_chain,
+	},
+	.entries	= (char *)&initial_chain,
+};
+
+static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
+{
+	if (valid_hooks & ~(1 << NF_BR_BROUTING))
+		return -EINVAL;
+	return 0;
+}
+
+static struct ebt_table broute_table =
+{
+	.name		= "broute",
+	.table		= &initial_table,
+	.valid_hooks	= 1 << NF_BR_BROUTING,
+	.lock		= RW_LOCK_UNLOCKED,
+	.check		= check,
+	.me		= THIS_MODULE,
+};
+
+static int ebt_broute(struct sk_buff **pskb)
+{
+	int ret;
+
+	ret = ebt_do_table(NF_BR_BROUTING, pskb, (*pskb)->dev, NULL,
+	   &broute_table);
+	if (ret == NF_DROP)
+		return 1; /* route it */
+	return 0; /* bridge it */
+}
+
+static int __init init(void)
+{
+	int ret;
+
+	ret = ebt_register_table(&broute_table);
+	if (ret < 0)
+		return ret;
+	/* see br_input.c */
+	br_should_route_hook = ebt_broute;
+	return ret;
+}
+
+static void __exit fini(void)
+{
+	br_should_route_hook = NULL;
+	synchronize_net();
+	ebt_unregister_table(&broute_table);
+}
+
+module_init(init);
+module_exit(fini);
+MODULE_LICENSE("GPL");
-- 
cgit v1.1