3 * Linux ethernet bridge
6 * Lennert Buytenhek <buytenh@gnu.org>
8 * $Id: br_device.c,v 1.6 2001/12/24 00:59:55 davem Exp $
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
16 #include <linux/kernel.h>
17 #include <linux/netdevice.h>
18 #include <linux/module.h>
19 #include <asm/uaccess.h>
20 #include "br_private.h"
22 static struct net_device_stats *br_dev_get_stats(struct net_device *dev)
24 struct net_bridge *br;
28 return &br->statistics;
31 static int __br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
33 struct net_bridge *br;
35 struct net_bridge_fdb_entry *dst;
38 br->statistics.tx_packets++;
39 br->statistics.tx_bytes += skb->len;
41 dest = skb->mac.raw = skb->data;
42 skb_pull(skb, ETH_HLEN);
45 br_flood_deliver(br, skb, 0);
49 if ((dst = br_fdb_get(br, dest)) != NULL) {
50 br_deliver(dst->dst, skb);
55 br_flood_deliver(br, skb, 0);
59 int br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
64 ret = __br_dev_xmit(skb, dev);
70 static int br_dev_open(struct net_device *dev)
72 netif_start_queue(dev);
74 br_stp_enable_bridge(dev->priv);
79 static void br_dev_set_multicast_list(struct net_device *dev)
83 static int br_dev_stop(struct net_device *dev)
85 br_stp_disable_bridge(dev->priv);
87 netif_stop_queue(dev);
92 static int br_dev_accept_fastpath(struct net_device *dev, struct dst_entry *dst)
97 void br_dev_setup(struct net_device *dev)
99 memset(dev->dev_addr, 0, ETH_ALEN);
103 dev->do_ioctl = br_dev_ioctl;
104 dev->get_stats = br_dev_get_stats;
105 dev->hard_start_xmit = br_dev_xmit;
106 dev->open = br_dev_open;
107 dev->set_multicast_list = br_dev_set_multicast_list;
108 dev->destructor = free_netdev;
109 SET_MODULE_OWNER(dev);
110 dev->stop = br_dev_stop;
111 dev->accept_fastpath = br_dev_accept_fastpath;
112 dev->tx_queue_len = 0;
113 dev->set_mac_address = NULL;
114 dev->priv_flags = IFF_EBRIDGE;