]>
Commit | Line | Data |
---|---|---|
2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * Device handling code | |
4 | * Linux ethernet bridge | |
5 | * | |
6 | * Authors: | |
7 | * Lennert Buytenhek <buytenh@gnu.org> | |
1da177e4 LT |
8 | */ |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/netdevice.h> | |
c06ee961 | 12 | #include <linux/netpoll.h> |
4505a3ef | 13 | #include <linux/etherdevice.h> |
edb5e46f | 14 | #include <linux/ethtool.h> |
c06ee961 | 15 | #include <linux/list.h> |
ea2d9b41 | 16 | #include <linux/netfilter_bridge.h> |
4505a3ef | 17 | |
7c0f6ba6 | 18 | #include <linux/uaccess.h> |
1da177e4 LT |
19 | #include "br_private.h" |
20 | ||
161f65ba VY |
21 | #define COMMON_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA | \ |
22 | NETIF_F_GSO_MASK | NETIF_F_HW_CSUM) | |
23 | ||
1a4ba64d PNA |
24 | const struct nf_br_ops __rcu *nf_br_ops __read_mostly; |
25 | EXPORT_SYMBOL_GPL(nf_br_ops); | |
26 | ||
eeaf61d8 | 27 | /* net device transmit always called with BH disabled */ |
6fef4c0c | 28 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 LT |
29 | { |
30 | struct net_bridge *br = netdev_priv(dev); | |
1da177e4 | 31 | struct net_bridge_fdb_entry *dst; |
c4fcb78c | 32 | struct net_bridge_mdb_entry *mdst; |
8f84985f | 33 | struct pcpu_sw_netstats *brstats = this_cpu_ptr(br->stats); |
1a4ba64d | 34 | const struct nf_br_ops *nf_ops; |
a580c76d | 35 | u8 state = BR_STATE_FORWARDING; |
31a4562d | 36 | const unsigned char *dest; |
78851988 | 37 | u16 vid = 0; |
1da177e4 | 38 | |
c03307ea | 39 | rcu_read_lock(); |
1a4ba64d PNA |
40 | nf_ops = rcu_dereference(nf_br_ops); |
41 | if (nf_ops && nf_ops->br_dev_xmit_hook(skb)) { | |
c03307ea | 42 | rcu_read_unlock(); |
ea2d9b41 BDS |
43 | return NETDEV_TX_OK; |
44 | } | |
ea2d9b41 | 45 | |
406818ff | 46 | u64_stats_update_begin(&brstats->syncp); |
14bb4789 | 47 | brstats->tx_packets++; |
48 | brstats->tx_bytes += skb->len; | |
406818ff | 49 | u64_stats_update_end(&brstats->syncp); |
6088a539 | 50 | |
f1c2eddf | 51 | br_switchdev_frame_unmark(skb); |
14bb4789 | 52 | BR_INPUT_SKB_CB(skb)->brdev = dev; |
3c171f49 | 53 | BR_INPUT_SKB_CB(skb)->frag_max_size = 0; |
1da177e4 | 54 | |
459a98ed | 55 | skb_reset_mac_header(skb); |
1da177e4 LT |
56 | skb_pull(skb, ETH_HLEN); |
57 | ||
a580c76d | 58 | if (!br_allowed_ingress(br, br_vlan_group_rcu(br), skb, &vid, &state)) |
12464bb8 TM |
59 | goto out; |
60 | ||
057658cb | 61 | if (IS_ENABLED(CONFIG_INET) && |
823d81b0 NA |
62 | (eth_hdr(skb)->h_proto == htons(ETH_P_ARP) || |
63 | eth_hdr(skb)->h_proto == htons(ETH_P_RARP)) && | |
c69c2cd4 | 64 | br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED)) { |
057658cb | 65 | br_do_proxy_suppress_arp(skb, br, vid, NULL); |
ed842fae RP |
66 | } else if (IS_ENABLED(CONFIG_IPV6) && |
67 | skb->protocol == htons(ETH_P_IPV6) && | |
c69c2cd4 | 68 | br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED) && |
ed842fae RP |
69 | pskb_may_pull(skb, sizeof(struct ipv6hdr) + |
70 | sizeof(struct nd_msg)) && | |
71 | ipv6_hdr(skb)->nexthdr == IPPROTO_ICMPV6) { | |
72 | struct nd_msg *msg, _msg; | |
73 | ||
74 | msg = br_is_nd_neigh_msg(skb, &_msg); | |
75 | if (msg) | |
76 | br_do_suppress_nd(skb, br, vid, NULL, msg); | |
057658cb RP |
77 | } |
78 | ||
31a4562d | 79 | dest = eth_hdr(skb)->h_dest; |
37b090e6 | 80 | if (is_broadcast_ether_addr(dest)) { |
8addd5e7 | 81 | br_flood(br, skb, BR_PKT_BROADCAST, false, true); |
37b090e6 | 82 | } else if (is_multicast_ether_addr(dest)) { |
91d2c34a | 83 | if (unlikely(netpoll_tx_running(dev))) { |
8addd5e7 | 84 | br_flood(br, skb, BR_PKT_MULTICAST, false, true); |
91d2c34a HX |
85 | goto out; |
86 | } | |
06499098 | 87 | if (br_multicast_rcv(br, NULL, skb, vid)) { |
6d1d1d39 | 88 | kfree_skb(skb); |
c4fcb78c | 89 | goto out; |
6d1d1d39 | 90 | } |
c4fcb78c | 91 | |
fbca58a2 | 92 | mdst = br_mdb_get(br, skb, vid); |
b00589af | 93 | if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) && |
cc0fdd80 | 94 | br_multicast_querier_exists(br, eth_hdr(skb))) |
37b090e6 | 95 | br_multicast_flood(mdst, skb, false, true); |
c4fcb78c | 96 | else |
8addd5e7 | 97 | br_flood(br, skb, BR_PKT_MULTICAST, false, true); |
bfd0aeac | 98 | } else if ((dst = br_fdb_find_rcu(br, dest, vid)) != NULL) { |
37b090e6 NA |
99 | br_forward(dst->dst, skb, false, true); |
100 | } else { | |
8addd5e7 | 101 | br_flood(br, skb, BR_PKT_UNICAST, false, true); |
37b090e6 | 102 | } |
c4fcb78c | 103 | out: |
eeaf61d8 | 104 | rcu_read_unlock(); |
6ed10654 | 105 | return NETDEV_TX_OK; |
1da177e4 LT |
106 | } |
107 | ||
bb900b27 | 108 | static int br_dev_init(struct net_device *dev) |
109 | { | |
110 | struct net_bridge *br = netdev_priv(dev); | |
5be5a2df | 111 | int err; |
bb900b27 | 112 | |
1c213bd2 | 113 | br->stats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
bb900b27 | 114 | if (!br->stats) |
115 | return -ENOMEM; | |
116 | ||
eb793583 NA |
117 | err = br_fdb_hash_init(br); |
118 | if (err) { | |
119 | free_percpu(br->stats); | |
120 | return err; | |
121 | } | |
122 | ||
19e3a9c9 NA |
123 | err = br_mdb_hash_init(br); |
124 | if (err) { | |
125 | free_percpu(br->stats); | |
126 | br_fdb_hash_fini(br); | |
127 | return err; | |
128 | } | |
129 | ||
5be5a2df | 130 | err = br_vlan_init(br); |
1080ab95 | 131 | if (err) { |
5be5a2df | 132 | free_percpu(br->stats); |
19e3a9c9 | 133 | br_mdb_hash_fini(br); |
eb793583 | 134 | br_fdb_hash_fini(br); |
1080ab95 NA |
135 | return err; |
136 | } | |
137 | ||
138 | err = br_multicast_init_stats(br); | |
139 | if (err) { | |
140 | free_percpu(br->stats); | |
141 | br_vlan_flush(br); | |
19e3a9c9 | 142 | br_mdb_hash_fini(br); |
eb793583 | 143 | br_fdb_hash_fini(br); |
1080ab95 | 144 | } |
5be5a2df VY |
145 | |
146 | return err; | |
bb900b27 | 147 | } |
148 | ||
b6fe0440 IS |
149 | static void br_dev_uninit(struct net_device *dev) |
150 | { | |
151 | struct net_bridge *br = netdev_priv(dev); | |
152 | ||
b1b9d366 | 153 | br_multicast_dev_del(br); |
b6fe0440 IS |
154 | br_multicast_uninit_stats(br); |
155 | br_vlan_flush(br); | |
19e3a9c9 | 156 | br_mdb_hash_fini(br); |
eb793583 | 157 | br_fdb_hash_fini(br); |
b6fe0440 IS |
158 | free_percpu(br->stats); |
159 | } | |
160 | ||
1da177e4 LT |
161 | static int br_dev_open(struct net_device *dev) |
162 | { | |
81d35307 | 163 | struct net_bridge *br = netdev_priv(dev); |
1da177e4 | 164 | |
c4d27ef9 | 165 | netdev_update_features(dev); |
81d35307 SH |
166 | netif_start_queue(dev); |
167 | br_stp_enable_bridge(br); | |
3fe2d7c7 | 168 | br_multicast_open(br); |
1da177e4 LT |
169 | |
170 | return 0; | |
171 | } | |
172 | ||
173 | static void br_dev_set_multicast_list(struct net_device *dev) | |
174 | { | |
175 | } | |
176 | ||
2796d0c6 VY |
177 | static void br_dev_change_rx_flags(struct net_device *dev, int change) |
178 | { | |
179 | if (change & IFF_PROMISC) | |
180 | br_manage_promisc(netdev_priv(dev)); | |
181 | } | |
182 | ||
1da177e4 LT |
183 | static int br_dev_stop(struct net_device *dev) |
184 | { | |
3fe2d7c7 HX |
185 | struct net_bridge *br = netdev_priv(dev); |
186 | ||
187 | br_stp_disable_bridge(br); | |
188 | br_multicast_stop(br); | |
1da177e4 LT |
189 | |
190 | netif_stop_queue(dev); | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
bc1f4470 | 195 | static void br_get_stats64(struct net_device *dev, |
196 | struct rtnl_link_stats64 *stats) | |
14bb4789 | 197 | { |
198 | struct net_bridge *br = netdev_priv(dev); | |
8f84985f | 199 | struct pcpu_sw_netstats tmp, sum = { 0 }; |
14bb4789 | 200 | unsigned int cpu; |
201 | ||
202 | for_each_possible_cpu(cpu) { | |
406818ff | 203 | unsigned int start; |
8f84985f | 204 | const struct pcpu_sw_netstats *bstats |
14bb4789 | 205 | = per_cpu_ptr(br->stats, cpu); |
406818ff | 206 | do { |
57a7744e | 207 | start = u64_stats_fetch_begin_irq(&bstats->syncp); |
406818ff | 208 | memcpy(&tmp, bstats, sizeof(tmp)); |
57a7744e | 209 | } while (u64_stats_fetch_retry_irq(&bstats->syncp, start)); |
406818ff ED |
210 | sum.tx_bytes += tmp.tx_bytes; |
211 | sum.tx_packets += tmp.tx_packets; | |
212 | sum.rx_bytes += tmp.rx_bytes; | |
213 | sum.rx_packets += tmp.rx_packets; | |
14bb4789 | 214 | } |
215 | ||
216 | stats->tx_bytes = sum.tx_bytes; | |
217 | stats->tx_packets = sum.tx_packets; | |
218 | stats->rx_bytes = sum.rx_bytes; | |
219 | stats->rx_packets = sum.rx_packets; | |
14bb4789 | 220 | } |
221 | ||
1da177e4 LT |
222 | static int br_change_mtu(struct net_device *dev, int new_mtu) |
223 | { | |
4adf0af6 | 224 | struct net_bridge *br = netdev_priv(dev); |
f40aa233 | 225 | |
1da177e4 | 226 | dev->mtu = new_mtu; |
4adf0af6 | 227 | |
804b854d | 228 | /* this flag will be cleared if the MTU was automatically adjusted */ |
3341d917 | 229 | br_opt_toggle(br, BROPT_MTU_SET_BY_USER, true); |
34666d46 | 230 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
4adf0af6 | 231 | /* remember the MTU in the rtable for PMTU */ |
defb3519 | 232 | dst_metric_set(&br->fake_rtable.dst, RTAX_MTU, new_mtu); |
4adf0af6 SW |
233 | #endif |
234 | ||
1da177e4 LT |
235 | return 0; |
236 | } | |
237 | ||
ffe1d49c | 238 | /* Allow setting mac address to any valid ethernet address. */ |
4505a3ef SH |
239 | static int br_set_mac_address(struct net_device *dev, void *p) |
240 | { | |
241 | struct net_bridge *br = netdev_priv(dev); | |
242 | struct sockaddr *addr = p; | |
ffe1d49c SH |
243 | |
244 | if (!is_valid_ether_addr(addr->sa_data)) | |
7ca1e11a | 245 | return -EADDRNOTAVAIL; |
4505a3ef | 246 | |
c4b4c421 NA |
247 | /* dev_set_mac_addr() can be called by a master device on bridge's |
248 | * NETDEV_UNREGISTER, but since it's being destroyed do nothing | |
249 | */ | |
250 | if (dev->reg_state != NETREG_REGISTERED) | |
251 | return -EBUSY; | |
252 | ||
4505a3ef | 253 | spin_lock_bh(&br->lock); |
9a7b6ef9 | 254 | if (!ether_addr_equal(dev->dev_addr, addr->sa_data)) { |
a3ebb7ef | 255 | /* Mac address will be changed in br_stp_change_bridge_id(). */ |
43598813 | 256 | br_stp_change_bridge_id(br, addr->sa_data); |
257 | } | |
4505a3ef SH |
258 | spin_unlock_bh(&br->lock); |
259 | ||
ffe1d49c | 260 | return 0; |
4505a3ef SH |
261 | } |
262 | ||
edb5e46f SH |
263 | static void br_getinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
264 | { | |
7826d43f JP |
265 | strlcpy(info->driver, "bridge", sizeof(info->driver)); |
266 | strlcpy(info->version, BR_VERSION, sizeof(info->version)); | |
267 | strlcpy(info->fw_version, "N/A", sizeof(info->fw_version)); | |
268 | strlcpy(info->bus_info, "N/A", sizeof(info->bus_info)); | |
edb5e46f SH |
269 | } |
270 | ||
542575fe MS |
271 | static int br_get_link_ksettings(struct net_device *dev, |
272 | struct ethtool_link_ksettings *cmd) | |
273 | { | |
274 | struct net_bridge *br = netdev_priv(dev); | |
275 | struct net_bridge_port *p; | |
276 | ||
277 | cmd->base.duplex = DUPLEX_UNKNOWN; | |
278 | cmd->base.port = PORT_OTHER; | |
279 | cmd->base.speed = SPEED_UNKNOWN; | |
280 | ||
281 | list_for_each_entry(p, &br->port_list, list) { | |
282 | struct ethtool_link_ksettings ecmd; | |
283 | struct net_device *pdev = p->dev; | |
284 | ||
285 | if (!netif_running(pdev) || !netif_oper_up(pdev)) | |
286 | continue; | |
287 | ||
288 | if (__ethtool_get_link_ksettings(pdev, &ecmd)) | |
289 | continue; | |
290 | ||
291 | if (ecmd.base.speed == (__u32)SPEED_UNKNOWN) | |
292 | continue; | |
293 | ||
294 | if (cmd->base.speed == (__u32)SPEED_UNKNOWN || | |
295 | cmd->base.speed < ecmd.base.speed) | |
296 | cmd->base.speed = ecmd.base.speed; | |
297 | } | |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
c8f44aff MM |
302 | static netdev_features_t br_fix_features(struct net_device *dev, |
303 | netdev_features_t features) | |
edb5e46f SH |
304 | { |
305 | struct net_bridge *br = netdev_priv(dev); | |
306 | ||
c4d27ef9 | 307 | return br_features_recompute(br, features); |
361ff8a6 JG |
308 | } |
309 | ||
c06ee961 | 310 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a | 311 | static void br_poll_controller(struct net_device *br_dev) |
c06ee961 | 312 | { |
c06ee961 WC |
313 | } |
314 | ||
91d2c34a | 315 | static void br_netpoll_cleanup(struct net_device *dev) |
c06ee961 | 316 | { |
91d2c34a | 317 | struct net_bridge *br = netdev_priv(dev); |
4e3828c4 | 318 | struct net_bridge_port *p; |
c06ee961 | 319 | |
4e3828c4 | 320 | list_for_each_entry(p, &br->port_list, list) |
91d2c34a | 321 | br_netpoll_disable(p); |
c06ee961 WC |
322 | } |
323 | ||
a8779ec1 | 324 | static int __br_netpoll_enable(struct net_bridge_port *p) |
dbe17307 CW |
325 | { |
326 | struct netpoll *np; | |
327 | int err; | |
328 | ||
a8779ec1 | 329 | np = kzalloc(sizeof(*p->np), GFP_KERNEL); |
dbe17307 CW |
330 | if (!np) |
331 | return -ENOMEM; | |
332 | ||
a8779ec1 | 333 | err = __netpoll_setup(np, p->dev); |
dbe17307 CW |
334 | if (err) { |
335 | kfree(np); | |
336 | return err; | |
337 | } | |
338 | ||
339 | p->np = np; | |
340 | return err; | |
341 | } | |
342 | ||
a8779ec1 | 343 | int br_netpoll_enable(struct net_bridge_port *p) |
dbe17307 CW |
344 | { |
345 | if (!p->br->dev->npinfo) | |
346 | return 0; | |
347 | ||
a8779ec1 | 348 | return __br_netpoll_enable(p); |
dbe17307 CW |
349 | } |
350 | ||
a8779ec1 | 351 | static int br_netpoll_setup(struct net_device *dev, struct netpoll_info *ni) |
c06ee961 | 352 | { |
cfb478da | 353 | struct net_bridge *br = netdev_priv(dev); |
4e3828c4 | 354 | struct net_bridge_port *p; |
91d2c34a | 355 | int err = 0; |
c06ee961 | 356 | |
4e3828c4 | 357 | list_for_each_entry(p, &br->port_list, list) { |
91d2c34a HX |
358 | if (!p->dev) |
359 | continue; | |
a8779ec1 | 360 | err = __br_netpoll_enable(p); |
91d2c34a HX |
361 | if (err) |
362 | goto fail; | |
c06ee961 | 363 | } |
91d2c34a HX |
364 | |
365 | out: | |
366 | return err; | |
367 | ||
368 | fail: | |
369 | br_netpoll_cleanup(dev); | |
370 | goto out; | |
c06ee961 WC |
371 | } |
372 | ||
91d2c34a | 373 | void br_netpoll_disable(struct net_bridge_port *p) |
c06ee961 | 374 | { |
91d2c34a HX |
375 | struct netpoll *np = p->np; |
376 | ||
377 | if (!np) | |
378 | return; | |
379 | ||
380 | p->np = NULL; | |
381 | ||
c9fbd71f | 382 | __netpoll_free(np); |
c06ee961 WC |
383 | } |
384 | ||
385 | #endif | |
386 | ||
33eaf2a6 DA |
387 | static int br_add_slave(struct net_device *dev, struct net_device *slave_dev, |
388 | struct netlink_ext_ack *extack) | |
afc6151a JP |
389 | |
390 | { | |
391 | struct net_bridge *br = netdev_priv(dev); | |
392 | ||
ca752be0 | 393 | return br_add_if(br, slave_dev, extack); |
afc6151a JP |
394 | } |
395 | ||
396 | static int br_del_slave(struct net_device *dev, struct net_device *slave_dev) | |
397 | { | |
398 | struct net_bridge *br = netdev_priv(dev); | |
399 | ||
400 | return br_del_if(br, slave_dev); | |
401 | } | |
402 | ||
a2dbb882 | 403 | static const struct ethtool_ops br_ethtool_ops = { |
542575fe MS |
404 | .get_drvinfo = br_getinfo, |
405 | .get_link = ethtool_op_get_link, | |
406 | .get_link_ksettings = br_get_link_ksettings, | |
edb5e46f SH |
407 | }; |
408 | ||
a2dbb882 SH |
409 | static const struct net_device_ops br_netdev_ops = { |
410 | .ndo_open = br_dev_open, | |
411 | .ndo_stop = br_dev_stop, | |
bb900b27 | 412 | .ndo_init = br_dev_init, |
b6fe0440 | 413 | .ndo_uninit = br_dev_uninit, |
00829823 | 414 | .ndo_start_xmit = br_dev_xmit, |
406818ff | 415 | .ndo_get_stats64 = br_get_stats64, |
00829823 | 416 | .ndo_set_mac_address = br_set_mac_address, |
afc4b13d | 417 | .ndo_set_rx_mode = br_dev_set_multicast_list, |
2796d0c6 | 418 | .ndo_change_rx_flags = br_dev_change_rx_flags, |
00829823 SH |
419 | .ndo_change_mtu = br_change_mtu, |
420 | .ndo_do_ioctl = br_dev_ioctl, | |
c06ee961 | 421 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a | 422 | .ndo_netpoll_setup = br_netpoll_setup, |
c06ee961 WC |
423 | .ndo_netpoll_cleanup = br_netpoll_cleanup, |
424 | .ndo_poll_controller = br_poll_controller, | |
425 | #endif | |
afc6151a JP |
426 | .ndo_add_slave = br_add_slave, |
427 | .ndo_del_slave = br_del_slave, | |
c4d27ef9 | 428 | .ndo_fix_features = br_fix_features, |
77162022 JF |
429 | .ndo_fdb_add = br_fdb_add, |
430 | .ndo_fdb_del = br_fdb_delete, | |
431 | .ndo_fdb_dump = br_fdb_dump, | |
47674562 | 432 | .ndo_fdb_get = br_fdb_get, |
e5a55a89 JF |
433 | .ndo_bridge_getlink = br_getlink, |
434 | .ndo_bridge_setlink = br_setlink, | |
407af329 | 435 | .ndo_bridge_dellink = br_dellink, |
66780530 | 436 | .ndo_features_check = passthru_features_check, |
a2dbb882 SH |
437 | }; |
438 | ||
bb900b27 | 439 | static struct device_type br_type = { |
440 | .name = "bridge", | |
441 | }; | |
442 | ||
1da177e4 LT |
443 | void br_dev_setup(struct net_device *dev) |
444 | { | |
bb900b27 | 445 | struct net_bridge *br = netdev_priv(dev); |
446 | ||
7ce5d222 | 447 | eth_hw_addr_random(dev); |
1da177e4 LT |
448 | ether_setup(dev); |
449 | ||
a2dbb882 | 450 | dev->netdev_ops = &br_netdev_ops; |
cf124db5 | 451 | dev->needs_free_netdev = true; |
7ad24ea4 | 452 | dev->ethtool_ops = &br_ethtool_ops; |
bb900b27 | 453 | SET_NETDEV_DEVTYPE(dev, &br_type); |
ccecb2a4 | 454 | dev->priv_flags = IFF_EBRIDGE | IFF_NO_QUEUE; |
edb5e46f | 455 | |
161f65ba | 456 | dev->features = COMMON_FEATURES | NETIF_F_LLTX | NETIF_F_NETNS_LOCAL | |
1c5abb6c TM |
457 | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX; |
458 | dev->hw_features = COMMON_FEATURES | NETIF_F_HW_VLAN_CTAG_TX | | |
459 | NETIF_F_HW_VLAN_STAG_TX; | |
161f65ba | 460 | dev->vlan_features = COMMON_FEATURES; |
bb900b27 | 461 | |
462 | br->dev = dev; | |
463 | spin_lock_init(&br->lock); | |
464 | INIT_LIST_HEAD(&br->port_list); | |
eb793583 | 465 | INIT_HLIST_HEAD(&br->fdb_list); |
bb900b27 | 466 | spin_lock_init(&br->hash_lock); |
467 | ||
468 | br->bridge_id.prio[0] = 0x80; | |
469 | br->bridge_id.prio[1] = 0x00; | |
470 | ||
05428729 | 471 | ether_addr_copy(br->group_addr, eth_stp_addr); |
bb900b27 | 472 | |
bb900b27 | 473 | br->stp_enabled = BR_NO_STP; |
515853cc | 474 | br->group_fwd_mask = BR_GROUPFWD_DEFAULT; |
f2808d22 | 475 | br->group_fwd_mask_required = BR_GROUPFWD_DEFAULT; |
515853cc | 476 | |
bb900b27 | 477 | br->designated_root = br->bridge_id; |
478 | br->bridge_max_age = br->max_age = 20 * HZ; | |
479 | br->bridge_hello_time = br->hello_time = 2 * HZ; | |
480 | br->bridge_forward_delay = br->forward_delay = 15 * HZ; | |
34d8acd8 | 481 | br->bridge_ageing_time = br->ageing_time = BR_DEFAULT_AGEING_TIME; |
91572088 | 482 | dev->max_mtu = ETH_MAX_MTU; |
bb900b27 | 483 | |
484 | br_netfilter_rtable_init(br); | |
485 | br_stp_timer_init(br); | |
486 | br_multicast_init(br); | |
f7cdee8a | 487 | INIT_DELAYED_WORK(&br->gc_work, br_fdb_cleanup); |
1da177e4 | 488 | } |