blob: 6ed2feb51e3c7ae3d0f0fd629d6e147549b5fa54 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Device handling code
3 * Linux ethernet bridge
4 *
5 * Authors:
6 * Lennert Buytenhek <buytenh@gnu.org>
7 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07008 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version
11 * 2 of the License, or (at your option) any later version.
12 */
13
14#include <linux/kernel.h>
15#include <linux/netdevice.h>
WANG Congc06ee962010-05-06 00:48:24 -070016#include <linux/netpoll.h>
Stephen Hemminger4505a3e2005-12-21 18:51:49 -080017#include <linux/etherdevice.h>
Stephen Hemmingeredb5e462005-12-21 19:00:58 -080018#include <linux/ethtool.h>
WANG Congc06ee962010-05-06 00:48:24 -070019#include <linux/list.h>
Bart De Schuymerea2d9b42010-04-15 12:14:51 +020020#include <linux/netfilter_bridge.h>
Stephen Hemminger4505a3e2005-12-21 18:51:49 -080021
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include <asm/uaccess.h>
23#include "br_private.h"
24
Vlad Yasevich161f65b2013-05-22 07:49:34 +000025#define COMMON_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA | \
26 NETIF_F_GSO_MASK | NETIF_F_HW_CSUM)
27
Pablo Neira Ayuso1a4ba642015-03-10 10:27:18 +010028const struct nf_br_ops __rcu *nf_br_ops __read_mostly;
29EXPORT_SYMBOL_GPL(nf_br_ops);
30
stephen hemmingereeaf61d2010-07-27 08:26:30 +000031/* net device transmit always called with BH disabled */
Stephen Hemminger6fef4c02009-08-31 19:50:41 +000032netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -070033{
34 struct net_bridge *br = netdev_priv(dev);
35 const unsigned char *dest = skb->data;
36 struct net_bridge_fdb_entry *dst;
Herbert Xuc4fcb782010-02-27 19:41:48 +000037 struct net_bridge_mdb_entry *mdst;
Li RongQing8f849852014-01-04 13:57:59 +080038 struct pcpu_sw_netstats *brstats = this_cpu_ptr(br->stats);
Pablo Neira Ayuso1a4ba642015-03-10 10:27:18 +010039 const struct nf_br_ops *nf_ops;
Vlad Yasevich78851982013-02-13 12:00:14 +000040 u16 vid = 0;
stephen hemminger14bb4782010-03-02 13:32:09 +000041
Stephen Hemmingerc03307e2012-08-14 08:19:33 -070042 rcu_read_lock();
Pablo Neira Ayuso1a4ba642015-03-10 10:27:18 +010043 nf_ops = rcu_dereference(nf_br_ops);
44 if (nf_ops && nf_ops->br_dev_xmit_hook(skb)) {
Stephen Hemmingerc03307e2012-08-14 08:19:33 -070045 rcu_read_unlock();
Bart De Schuymerea2d9b42010-04-15 12:14:51 +020046 return NETDEV_TX_OK;
47 }
Bart De Schuymerea2d9b42010-04-15 12:14:51 +020048
Eric Dumazet406818f2010-06-23 13:00:48 -070049 u64_stats_update_begin(&brstats->syncp);
stephen hemminger14bb4782010-03-02 13:32:09 +000050 brstats->tx_packets++;
51 brstats->tx_bytes += skb->len;
Eric Dumazet406818f2010-06-23 13:00:48 -070052 u64_stats_update_end(&brstats->syncp);
Linus Torvalds1da177e2005-04-16 15:20:36 -070053
Herbert Xu6088a532010-02-27 19:41:42 +000054 BR_INPUT_SKB_CB(skb)->brdev = dev;
55
Arnaldo Carvalho de Melo459a98e2007-03-19 15:30:44 -070056 skb_reset_mac_header(skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 skb_pull(skb, ETH_HLEN);
58
Toshiaki Makita12464bb2014-03-27 21:46:55 +090059 if (!br_allowed_ingress(br, br_get_vlan_info(br), skb, &vid))
60 goto out;
61
Herbert Xu44661462011-07-05 13:58:33 +000062 if (is_broadcast_ether_addr(dest))
Vlad Yasevich867a5942013-06-05 10:08:01 -040063 br_flood_deliver(br, skb, false);
Herbert Xu44661462011-07-05 13:58:33 +000064 else if (is_multicast_ether_addr(dest)) {
Herbert Xu91d2c342010-06-10 16:12:50 +000065 if (unlikely(netpoll_tx_running(dev))) {
Vlad Yasevich867a5942013-06-05 10:08:01 -040066 br_flood_deliver(br, skb, false);
Herbert Xu91d2c342010-06-10 16:12:50 +000067 goto out;
68 }
Vlad Yasevich06499092013-10-28 15:45:07 -040069 if (br_multicast_rcv(br, NULL, skb, vid)) {
Herbert Xu6d1d1d32010-07-29 01:12:31 +000070 kfree_skb(skb);
Herbert Xuc4fcb782010-02-27 19:41:48 +000071 goto out;
Herbert Xu6d1d1d32010-07-29 01:12:31 +000072 }
Herbert Xuc4fcb782010-02-27 19:41:48 +000073
Cong Wangfbca58a2013-03-07 03:05:33 +000074 mdst = br_mdb_get(br, skb, vid);
Linus Lüssingb00589a2013-08-01 01:06:20 +020075 if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&
Linus Lüssingcc0fdd82013-08-30 17:28:17 +020076 br_multicast_querier_exists(br, eth_hdr(skb)))
Herbert Xuc4fcb782010-02-27 19:41:48 +000077 br_multicast_deliver(mdst, skb);
78 else
Vlad Yasevich867a5942013-06-05 10:08:01 -040079 br_flood_deliver(br, skb, false);
Vlad Yasevich2ba071e2013-02-13 12:00:16 +000080 } else if ((dst = __br_fdb_get(br, dest, vid)) != NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 br_deliver(dst->dst, skb);
82 else
Vlad Yasevich867a5942013-06-05 10:08:01 -040083 br_flood_deliver(br, skb, true);
Linus Torvalds1da177e2005-04-16 15:20:36 -070084
Herbert Xuc4fcb782010-02-27 19:41:48 +000085out:
stephen hemmingereeaf61d2010-07-27 08:26:30 +000086 rcu_read_unlock();
Patrick McHardy6ed10652009-06-23 06:03:08 +000087 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -070088}
89
stephen hemmingerbb900b22011-04-04 14:03:32 +000090static int br_dev_init(struct net_device *dev)
91{
92 struct net_bridge *br = netdev_priv(dev);
Vlad Yasevich5be5a2d2014-10-03 11:29:18 -040093 int err;
stephen hemmingerbb900b22011-04-04 14:03:32 +000094
WANG Cong1c213bd2014-02-13 11:46:28 -080095 br->stats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
stephen hemmingerbb900b22011-04-04 14:03:32 +000096 if (!br->stats)
97 return -ENOMEM;
98
Vlad Yasevich5be5a2d2014-10-03 11:29:18 -040099 err = br_vlan_init(br);
100 if (err)
101 free_percpu(br->stats);
102
103 return err;
stephen hemmingerbb900b22011-04-04 14:03:32 +0000104}
105
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106static int br_dev_open(struct net_device *dev)
107{
Stephen Hemminger81d35302005-05-29 14:15:17 -0700108 struct net_bridge *br = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109
Michał Mirosławc4d27ef2011-04-22 06:31:16 +0000110 netdev_update_features(dev);
Stephen Hemminger81d35302005-05-29 14:15:17 -0700111 netif_start_queue(dev);
112 br_stp_enable_bridge(br);
Herbert Xu3fe2d7c2010-02-28 00:49:38 -0800113 br_multicast_open(br);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114
115 return 0;
116}
117
118static void br_dev_set_multicast_list(struct net_device *dev)
119{
120}
121
Vlad Yasevich2796d0c2014-05-16 09:59:20 -0400122static void br_dev_change_rx_flags(struct net_device *dev, int change)
123{
124 if (change & IFF_PROMISC)
125 br_manage_promisc(netdev_priv(dev));
126}
127
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128static int br_dev_stop(struct net_device *dev)
129{
Herbert Xu3fe2d7c2010-02-28 00:49:38 -0800130 struct net_bridge *br = netdev_priv(dev);
131
132 br_stp_disable_bridge(br);
133 br_multicast_stop(br);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134
135 netif_stop_queue(dev);
136
137 return 0;
138}
139
Eric Dumazet28172732010-07-07 14:58:56 -0700140static struct rtnl_link_stats64 *br_get_stats64(struct net_device *dev,
141 struct rtnl_link_stats64 *stats)
stephen hemminger14bb4782010-03-02 13:32:09 +0000142{
143 struct net_bridge *br = netdev_priv(dev);
Li RongQing8f849852014-01-04 13:57:59 +0800144 struct pcpu_sw_netstats tmp, sum = { 0 };
stephen hemminger14bb4782010-03-02 13:32:09 +0000145 unsigned int cpu;
146
147 for_each_possible_cpu(cpu) {
Eric Dumazet406818f2010-06-23 13:00:48 -0700148 unsigned int start;
Li RongQing8f849852014-01-04 13:57:59 +0800149 const struct pcpu_sw_netstats *bstats
stephen hemminger14bb4782010-03-02 13:32:09 +0000150 = per_cpu_ptr(br->stats, cpu);
Eric Dumazet406818f2010-06-23 13:00:48 -0700151 do {
Eric W. Biederman57a77442014-03-13 21:26:42 -0700152 start = u64_stats_fetch_begin_irq(&bstats->syncp);
Eric Dumazet406818f2010-06-23 13:00:48 -0700153 memcpy(&tmp, bstats, sizeof(tmp));
Eric W. Biederman57a77442014-03-13 21:26:42 -0700154 } while (u64_stats_fetch_retry_irq(&bstats->syncp, start));
Eric Dumazet406818f2010-06-23 13:00:48 -0700155 sum.tx_bytes += tmp.tx_bytes;
156 sum.tx_packets += tmp.tx_packets;
157 sum.rx_bytes += tmp.rx_bytes;
158 sum.rx_packets += tmp.rx_packets;
stephen hemminger14bb4782010-03-02 13:32:09 +0000159 }
160
161 stats->tx_bytes = sum.tx_bytes;
162 stats->tx_packets = sum.tx_packets;
163 stats->rx_bytes = sum.rx_bytes;
164 stats->rx_packets = sum.rx_packets;
165
166 return stats;
167}
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169static int br_change_mtu(struct net_device *dev, int new_mtu)
170{
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700171 struct net_bridge *br = netdev_priv(dev);
172 if (new_mtu < 68 || new_mtu > br_min_mtu(br))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173 return -EINVAL;
174
175 dev->mtu = new_mtu;
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700176
Pablo Neira Ayuso34666d42014-09-18 11:29:03 +0200177#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700178 /* remember the MTU in the rtable for PMTU */
David S. Millerdefb3512010-12-08 21:16:57 -0800179 dst_metric_set(&br->fake_rtable.dst, RTAX_MTU, new_mtu);
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700180#endif
181
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182 return 0;
183}
184
Stephen Hemmingerffe1d492007-04-09 11:49:58 -0700185/* Allow setting mac address to any valid ethernet address. */
Stephen Hemminger4505a3e2005-12-21 18:51:49 -0800186static int br_set_mac_address(struct net_device *dev, void *p)
187{
188 struct net_bridge *br = netdev_priv(dev);
189 struct sockaddr *addr = p;
Stephen Hemmingerffe1d492007-04-09 11:49:58 -0700190
191 if (!is_valid_ether_addr(addr->sa_data))
Danny Kukawka7ca1e112012-02-21 02:07:52 +0000192 return -EADDRNOTAVAIL;
Stephen Hemminger4505a3e2005-12-21 18:51:49 -0800193
194 spin_lock_bh(&br->lock);
Joe Perches9a7b6ef92012-05-08 18:56:49 +0000195 if (!ether_addr_equal(dev->dev_addr, addr->sa_data)) {
Toshiaki Makitaa3ebb7e2014-02-07 16:48:20 +0900196 /* Mac address will be changed in br_stp_change_bridge_id(). */
stephen hemminger43598812011-12-08 07:17:49 +0000197 br_stp_change_bridge_id(br, addr->sa_data);
198 }
Stephen Hemminger4505a3e2005-12-21 18:51:49 -0800199 spin_unlock_bh(&br->lock);
200
Stephen Hemmingerffe1d492007-04-09 11:49:58 -0700201 return 0;
Stephen Hemminger4505a3e2005-12-21 18:51:49 -0800202}
203
Stephen Hemmingeredb5e462005-12-21 19:00:58 -0800204static void br_getinfo(struct net_device *dev, struct ethtool_drvinfo *info)
205{
Jiri Pirko7826d432013-01-06 00:44:26 +0000206 strlcpy(info->driver, "bridge", sizeof(info->driver));
207 strlcpy(info->version, BR_VERSION, sizeof(info->version));
208 strlcpy(info->fw_version, "N/A", sizeof(info->fw_version));
209 strlcpy(info->bus_info, "N/A", sizeof(info->bus_info));
Stephen Hemmingeredb5e462005-12-21 19:00:58 -0800210}
211
Michał Mirosławc8f44af2011-11-15 15:29:55 +0000212static netdev_features_t br_fix_features(struct net_device *dev,
213 netdev_features_t features)
Stephen Hemmingeredb5e462005-12-21 19:00:58 -0800214{
215 struct net_bridge *br = netdev_priv(dev);
216
Michał Mirosławc4d27ef2011-04-22 06:31:16 +0000217 return br_features_recompute(br, features);
Jesse Gross361ff8a2010-10-20 13:56:08 +0000218}
219
WANG Congc06ee962010-05-06 00:48:24 -0700220#ifdef CONFIG_NET_POLL_CONTROLLER
WANG Congc06ee962010-05-06 00:48:24 -0700221static void br_poll_controller(struct net_device *br_dev)
222{
WANG Congc06ee962010-05-06 00:48:24 -0700223}
224
Herbert Xu91d2c342010-06-10 16:12:50 +0000225static void br_netpoll_cleanup(struct net_device *dev)
WANG Congc06ee962010-05-06 00:48:24 -0700226{
stephen hemmingercfb478d2010-05-10 09:31:08 +0000227 struct net_bridge *br = netdev_priv(dev);
Amerigo Wang4e3828c2012-08-10 01:24:44 +0000228 struct net_bridge_port *p;
WANG Congc06ee962010-05-06 00:48:24 -0700229
Amerigo Wang4e3828c2012-08-10 01:24:44 +0000230 list_for_each_entry(p, &br->port_list, list)
Herbert Xu91d2c342010-06-10 16:12:50 +0000231 br_netpoll_disable(p);
WANG Congc06ee962010-05-06 00:48:24 -0700232}
233
Eric W. Biedermana8779ec2014-03-27 15:36:38 -0700234static int __br_netpoll_enable(struct net_bridge_port *p)
stephen hemmingercfb478d2010-05-10 09:31:08 +0000235{
Herbert Xu91d2c342010-06-10 16:12:50 +0000236 struct netpoll *np;
stephen hemminger93d8bf92013-07-24 11:51:41 -0700237 int err;
238
Eric W. Biedermana8779ec2014-03-27 15:36:38 -0700239 np = kzalloc(sizeof(*p->np), GFP_KERNEL);
Herbert Xu91d2c342010-06-10 16:12:50 +0000240 if (!np)
stephen hemminger93d8bf92013-07-24 11:51:41 -0700241 return -ENOMEM;
Herbert Xu91d2c342010-06-10 16:12:50 +0000242
Eric W. Biedermana8779ec2014-03-27 15:36:38 -0700243 err = __netpoll_setup(np, p->dev);
Herbert Xu91d2c342010-06-10 16:12:50 +0000244 if (err) {
245 kfree(np);
stephen hemminger93d8bf92013-07-24 11:51:41 -0700246 return err;
stephen hemmingercfb478d2010-05-10 09:31:08 +0000247 }
Herbert Xu91d2c342010-06-10 16:12:50 +0000248
249 p->np = np;
Herbert Xu91d2c342010-06-10 16:12:50 +0000250 return err;
251}
252
Eric W. Biedermana8779ec2014-03-27 15:36:38 -0700253int br_netpoll_enable(struct net_bridge_port *p)
Cong Wangdbe17302014-02-06 15:00:52 -0800254{
255 if (!p->br->dev->npinfo)
256 return 0;
257
Eric W. Biedermana8779ec2014-03-27 15:36:38 -0700258 return __br_netpoll_enable(p);
Cong Wangdbe17302014-02-06 15:00:52 -0800259}
260
Eric W. Biedermana8779ec2014-03-27 15:36:38 -0700261static int br_netpoll_setup(struct net_device *dev, struct netpoll_info *ni)
Cong Wangdbe17302014-02-06 15:00:52 -0800262{
263 struct net_bridge *br = netdev_priv(dev);
264 struct net_bridge_port *p;
265 int err = 0;
266
267 list_for_each_entry(p, &br->port_list, list) {
268 if (!p->dev)
269 continue;
Eric W. Biedermana8779ec2014-03-27 15:36:38 -0700270 err = __br_netpoll_enable(p);
Cong Wangdbe17302014-02-06 15:00:52 -0800271 if (err)
272 goto fail;
273 }
274
275out:
276 return err;
277
278fail:
279 br_netpoll_cleanup(dev);
280 goto out;
281}
282
Herbert Xu91d2c342010-06-10 16:12:50 +0000283void br_netpoll_disable(struct net_bridge_port *p)
284{
285 struct netpoll *np = p->np;
286
287 if (!np)
288 return;
289
290 p->np = NULL;
291
Neil Horman2cde6ac2013-02-11 10:25:30 +0000292 __netpoll_free_async(np);
WANG Congc06ee962010-05-06 00:48:24 -0700293}
294
295#endif
296
Jiri Pirkoafc61512011-02-13 09:33:42 +0000297static int br_add_slave(struct net_device *dev, struct net_device *slave_dev)
298
299{
300 struct net_bridge *br = netdev_priv(dev);
301
302 return br_add_if(br, slave_dev);
303}
304
305static int br_del_slave(struct net_device *dev, struct net_device *slave_dev)
306{
307 struct net_bridge *br = netdev_priv(dev);
308
309 return br_del_if(br, slave_dev);
310}
311
Stephen Hemmingera2dbb882008-11-19 21:49:00 -0800312static const struct ethtool_ops br_ethtool_ops = {
Stephen Hemmingere4119a42008-08-15 19:51:07 -0700313 .get_drvinfo = br_getinfo,
314 .get_link = ethtool_op_get_link,
Stephen Hemmingeredb5e462005-12-21 19:00:58 -0800315};
316
Stephen Hemmingera2dbb882008-11-19 21:49:00 -0800317static const struct net_device_ops br_netdev_ops = {
318 .ndo_open = br_dev_open,
319 .ndo_stop = br_dev_stop,
stephen hemmingerbb900b22011-04-04 14:03:32 +0000320 .ndo_init = br_dev_init,
Stephen Hemminger00829822008-11-20 20:14:53 -0800321 .ndo_start_xmit = br_dev_xmit,
Eric Dumazet406818f2010-06-23 13:00:48 -0700322 .ndo_get_stats64 = br_get_stats64,
Stephen Hemminger00829822008-11-20 20:14:53 -0800323 .ndo_set_mac_address = br_set_mac_address,
Jiri Pirkoafc4b132011-08-16 06:29:01 +0000324 .ndo_set_rx_mode = br_dev_set_multicast_list,
Vlad Yasevich2796d0c2014-05-16 09:59:20 -0400325 .ndo_change_rx_flags = br_dev_change_rx_flags,
Stephen Hemminger00829822008-11-20 20:14:53 -0800326 .ndo_change_mtu = br_change_mtu,
327 .ndo_do_ioctl = br_dev_ioctl,
WANG Congc06ee962010-05-06 00:48:24 -0700328#ifdef CONFIG_NET_POLL_CONTROLLER
Herbert Xu91d2c342010-06-10 16:12:50 +0000329 .ndo_netpoll_setup = br_netpoll_setup,
WANG Congc06ee962010-05-06 00:48:24 -0700330 .ndo_netpoll_cleanup = br_netpoll_cleanup,
331 .ndo_poll_controller = br_poll_controller,
332#endif
Jiri Pirkoafc61512011-02-13 09:33:42 +0000333 .ndo_add_slave = br_add_slave,
334 .ndo_del_slave = br_del_slave,
Michał Mirosławc4d27ef2011-04-22 06:31:16 +0000335 .ndo_fix_features = br_fix_features,
John Fastabend77162022012-04-15 06:43:56 +0000336 .ndo_fdb_add = br_fdb_add,
337 .ndo_fdb_del = br_fdb_delete,
338 .ndo_fdb_dump = br_fdb_dump,
John Fastabende5a55a82012-10-24 08:12:57 +0000339 .ndo_bridge_getlink = br_getlink,
340 .ndo_bridge_setlink = br_setlink,
Vlad Yasevich407af322013-02-13 12:00:12 +0000341 .ndo_bridge_dellink = br_dellink,
Toshiaki Makita66780532015-07-31 15:03:26 +0900342 .ndo_features_check = passthru_features_check,
Stephen Hemmingera2dbb882008-11-19 21:49:00 -0800343};
344
stephen hemminger14bb4782010-03-02 13:32:09 +0000345static void br_dev_free(struct net_device *dev)
346{
347 struct net_bridge *br = netdev_priv(dev);
348
349 free_percpu(br->stats);
350 free_netdev(dev);
351}
352
stephen hemmingerbb900b22011-04-04 14:03:32 +0000353static struct device_type br_type = {
354 .name = "bridge",
355};
356
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357void br_dev_setup(struct net_device *dev)
358{
stephen hemmingerbb900b22011-04-04 14:03:32 +0000359 struct net_bridge *br = netdev_priv(dev);
360
Danny Kukawka7ce5d222012-02-15 06:45:40 +0000361 eth_hw_addr_random(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 ether_setup(dev);
363
Stephen Hemmingera2dbb882008-11-19 21:49:00 -0800364 dev->netdev_ops = &br_netdev_ops;
stephen hemminger14bb4782010-03-02 13:32:09 +0000365 dev->destructor = br_dev_free;
Wilfried Klaebe7ad24ea2014-05-11 00:12:32 +0000366 dev->ethtool_ops = &br_ethtool_ops;
stephen hemmingerbb900b22011-04-04 14:03:32 +0000367 SET_NETDEV_DEVTYPE(dev, &br_type);
Phil Sutterccecb2a2015-08-18 10:30:37 +0200368 dev->priv_flags = IFF_EBRIDGE | IFF_NO_QUEUE;
Stephen Hemmingeredb5e462005-12-21 19:00:58 -0800369
Vlad Yasevich161f65b2013-05-22 07:49:34 +0000370 dev->features = COMMON_FEATURES | NETIF_F_LLTX | NETIF_F_NETNS_LOCAL |
Toshiaki Makita1c5abb62014-06-10 20:59:22 +0900371 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
372 dev->hw_features = COMMON_FEATURES | NETIF_F_HW_VLAN_CTAG_TX |
373 NETIF_F_HW_VLAN_STAG_TX;
Vlad Yasevich161f65b2013-05-22 07:49:34 +0000374 dev->vlan_features = COMMON_FEATURES;
stephen hemmingerbb900b22011-04-04 14:03:32 +0000375
376 br->dev = dev;
377 spin_lock_init(&br->lock);
378 INIT_LIST_HEAD(&br->port_list);
379 spin_lock_init(&br->hash_lock);
380
381 br->bridge_id.prio[0] = 0x80;
382 br->bridge_id.prio[1] = 0x00;
383
Joe Perchese5a727f2014-02-23 00:05:25 -0800384 ether_addr_copy(br->group_addr, eth_reserved_addr_base);
stephen hemmingerbb900b22011-04-04 14:03:32 +0000385
stephen hemmingerbb900b22011-04-04 14:03:32 +0000386 br->stp_enabled = BR_NO_STP;
stephen hemminger515853c2011-10-03 18:14:46 +0000387 br->group_fwd_mask = BR_GROUPFWD_DEFAULT;
Toshiaki Makitaf2808d22014-06-10 20:59:24 +0900388 br->group_fwd_mask_required = BR_GROUPFWD_DEFAULT;
stephen hemminger515853c2011-10-03 18:14:46 +0000389
stephen hemmingerbb900b22011-04-04 14:03:32 +0000390 br->designated_root = br->bridge_id;
391 br->bridge_max_age = br->max_age = 20 * HZ;
392 br->bridge_hello_time = br->hello_time = 2 * HZ;
393 br->bridge_forward_delay = br->forward_delay = 15 * HZ;
394 br->ageing_time = 300 * HZ;
395
396 br_netfilter_rtable_init(br);
397 br_stp_timer_init(br);
398 br_multicast_init(br);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399}