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net: macb: add fixed-link node support
[thirdparty/linux.git] / net / bridge / br_netlink.c
CommitLineData
11dc1f36
SH		 1/*
2 * Bridge netlink control interface
3 *
4 * Authors:
5 * Stephen Hemminger <shemminger@osdl.org>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 */
12
13#include <linux/kernel.h>
5a0e3ad6 14#include <linux/slab.h>
bb900b27 15#include <linux/etherdevice.h>
32fe21c0 16#include <net/rtnetlink.h>
881d966b 17#include <net/net_namespace.h>
b854272b 18#include <net/sock.h>
407af329 19#include <uapi/linux/if_bridge.h>
bb900b27 20
11dc1f36 21#include "br_private.h"
b03b6dd5 22#include "br_private_stp.h"
efa5356b 23#include "br_private_tunnel.h"
11dc1f36 24
2594e906 25static int __get_num_vlan_infos(struct net_bridge_vlan_group *vg,
77751ee8 26 u32 filter_mask)
fed0a159 27{
2594e906
NA		 28 struct net_bridge_vlan *v;
29 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 30 u16 flags, pvid;
fed0a159
RP		 31 int num_vlans = 0;
32
fed0a159
RP		 33 if (!(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
34 return 0;
35
77751ee8 36 pvid = br_get_pvid(vg);
2594e906 37 /* Count number of vlan infos */
586c2b57 38 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
fed0a159 39 flags = 0;
2594e906
NA		 40 /* only a context, bridge vlan not activated */
41 if (!br_vlan_should_use(v))
42 continue;
43 if (v->vid == pvid)
fed0a159
RP		 44 flags |= BRIDGE_VLAN_INFO_PVID;
45
2594e906 46 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
fed0a159
RP		 47 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
48
49 if (vid_range_start == 0) {
50 goto initvars;
2594e906 51 } else if ((v->vid - vid_range_end) == 1 &&
fed0a159 52 flags == vid_range_flags) {
2594e906 53 vid_range_end = v->vid;
fed0a159
RP		 54 continue;
55 } else {
56 if ((vid_range_end - vid_range_start) > 0)
57 num_vlans += 2;
58 else
59 num_vlans += 1;
60 }
61initvars:
2594e906
NA		 62 vid_range_start = v->vid;
63 vid_range_end = v->vid;
fed0a159
RP		 64 vid_range_flags = flags;
65 }
66
67 if (vid_range_start != 0) {
68 if ((vid_range_end - vid_range_start) > 0)
69 num_vlans += 2;
70 else
71 num_vlans += 1;
72 }
73
74 return num_vlans;
75}
76
2594e906 77static int br_get_num_vlan_infos(struct net_bridge_vlan_group *vg,
77751ee8 78 u32 filter_mask)
2594e906 79{
586c2b57
NA		 80 int num_vlans;
81
2594e906
NA		 82 if (!vg)
83 return 0;
84
85 if (filter_mask & RTEXT_FILTER_BRVLAN)
86 return vg->num_vlans;
87
586c2b57
NA		 88 rcu_read_lock();
89 num_vlans = __get_num_vlan_infos(vg, filter_mask);
90 rcu_read_unlock();
91
92 return num_vlans;
2594e906
NA		 93}
94
fed0a159
RP		 95static size_t br_get_link_af_size_filtered(const struct net_device *dev,
96 u32 filter_mask)
b7853d73 97{
2594e906 98 struct net_bridge_vlan_group *vg = NULL;
efa5356b 99 struct net_bridge_port *p = NULL;
2594e906 100 struct net_bridge *br;
fed0a159 101 int num_vlan_infos;
efa5356b 102 size_t vinfo_sz = 0;
b7853d73 103
2f56f6be 104 rcu_read_lock();
2594e906
NA		 105 if (br_port_exists(dev)) {
106 p = br_port_get_rcu(dev);
907b1e6e 107 vg = nbp_vlan_group_rcu(p);
2594e906
NA		 108 } else if (dev->priv_flags & IFF_EBRIDGE) {
109 br = netdev_priv(dev);
907b1e6e 110 vg = br_vlan_group_rcu(br);
2594e906 111 }
77751ee8 112 num_vlan_infos = br_get_num_vlan_infos(vg, filter_mask);
2f56f6be 113 rcu_read_unlock();
b7853d73 114
efa5356b
RP		 115 if (p && (p->flags & BR_VLAN_TUNNEL))
116 vinfo_sz += br_get_vlan_tunnel_info_size(vg);
117
b7853d73 118 /* Each VLAN is returned in bridge_vlan_info along with flags */
efa5356b
RP		 119 vinfo_sz += num_vlan_infos * nla_total_size(sizeof(struct bridge_vlan_info));
120
121 return vinfo_sz;
b7853d73
RP		 122}
123
25c71c75 124static inline size_t br_port_info_size(void)
125{
126 return nla_total_size(1) /* IFLA_BRPORT_STATE */
127 + nla_total_size(2) /* IFLA_BRPORT_PRIORITY */
128 + nla_total_size(4) /* IFLA_BRPORT_COST */
129 + nla_total_size(1) /* IFLA_BRPORT_MODE */
a2e01a65 130 + nla_total_size(1) /* IFLA_BRPORT_GUARD */
1007dd1a 131 + nla_total_size(1) /* IFLA_BRPORT_PROTECT */
3da889b6 132 + nla_total_size(1) /* IFLA_BRPORT_FAST_LEAVE */
6db6f0ea 133 + nla_total_size(1) /* IFLA_BRPORT_MCAST_TO_UCAST */
9ba18891 134 + nla_total_size(1) /* IFLA_BRPORT_LEARNING */
867a5943 135 + nla_total_size(1) /* IFLA_BRPORT_UNICAST_FLOOD */
9051247d
TK		 136 + nla_total_size(1) /* IFLA_BRPORT_MCAST_FLOOD */
137 + nla_total_size(1) /* IFLA_BRPORT_BCAST_FLOOD */
355b9f9d 138 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP */
786c2077 139 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP_WIFI */
efa5356b 140 + nla_total_size(1) /* IFLA_BRPORT_VLAN_TUNNEL */
4ebc7660 141 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
80df9a26 142 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */
96f94e7f
NA		 143 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */
144 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */
42d452c4
NA		 145 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_ID */
146 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_NO */
e08e838a
NA		 147 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */
148 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_CONFIG_PENDING */
12a0faa3
ND		 149 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */
150 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */
151 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_HOLD_TIMER */
5d6ae479
NA		 152#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
153 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MULTICAST_ROUTER */
154#endif
25c71c75 155 + 0;
156}
157
fed0a159 158static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask)
339bf98f
TG		 159{
160 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
25c71c75 161 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
162 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
163 + nla_total_size(4) /* IFLA_MASTER */
164 + nla_total_size(4) /* IFLA_MTU */
165 + nla_total_size(4) /* IFLA_LINK */
166 + nla_total_size(1) /* IFLA_OPERSTATE */
b7853d73 167 + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */
fed0a159
RP		 168 + nla_total_size(br_get_link_af_size_filtered(dev,
169 filter_mask)); /* IFLA_AF_SPEC */
25c71c75 170}
171
172static int br_port_fill_attrs(struct sk_buff *skb,
173 const struct net_bridge_port *p)
174{
175 u8 mode = !!(p->flags & BR_HAIRPIN_MODE);
61c0a9a8 176 u64 timerval;
25c71c75 177
178 if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
179 nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) ||
180 nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) ||
a2e01a65 181 nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
1007dd1a 182 nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
b6cb5ac8
NA		 183 nla_put_u8(skb, IFLA_BRPORT_PROTECT,
184 !!(p->flags & BR_ROOT_BLOCK)) ||
185 nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE,
186 !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||
6db6f0ea
FF		 187 nla_put_u8(skb, IFLA_BRPORT_MCAST_TO_UCAST,
188 !!(p->flags & BR_MULTICAST_TO_UNICAST)) ||
867a5943 189 nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) ||
b6cb5ac8
NA		 190 nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD,
191 !!(p->flags & BR_FLOOD)) ||
192 nla_put_u8(skb, IFLA_BRPORT_MCAST_FLOOD,
193 !!(p->flags & BR_MCAST_FLOOD)) ||
99f906e9
MM		 194 nla_put_u8(skb, IFLA_BRPORT_BCAST_FLOOD,
195 !!(p->flags & BR_BCAST_FLOOD)) ||
842a9ae0
JM		 196 nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) ||
197 nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI,
4ebc7660
NA		 198 !!(p->flags & BR_PROXYARP_WIFI)) ||
199 nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
80df9a26
NA		 200 &p->designated_root) ||
201 nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id),
96f94e7f
NA		 202 &p->designated_bridge) ||
203 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) ||
42d452c4
NA		 204 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost) ||
205 nla_put_u16(skb, IFLA_BRPORT_ID, p->port_id) ||
e08e838a
NA		 206 nla_put_u16(skb, IFLA_BRPORT_NO, p->port_no) ||
207 nla_put_u8(skb, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
208 p->topology_change_ack) ||
efa5356b
RP		 209 nla_put_u8(skb, IFLA_BRPORT_CONFIG_PENDING, p->config_pending) ||
210 nla_put_u8(skb, IFLA_BRPORT_VLAN_TUNNEL, !!(p->flags &
211 BR_VLAN_TUNNEL)))
25c71c75 212 return -EMSGSIZE;
213
61c0a9a8 214 timerval = br_timer_value(&p->message_age_timer);
12a0faa3
ND		 215 if (nla_put_u64_64bit(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval,
216 IFLA_BRPORT_PAD))
61c0a9a8
NA		 217 return -EMSGSIZE;
218 timerval = br_timer_value(&p->forward_delay_timer);
12a0faa3
ND		 219 if (nla_put_u64_64bit(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval,
220 IFLA_BRPORT_PAD))
61c0a9a8
NA		 221 return -EMSGSIZE;
222 timerval = br_timer_value(&p->hold_timer);
12a0faa3
ND		 223 if (nla_put_u64_64bit(skb, IFLA_BRPORT_HOLD_TIMER, timerval,
224 IFLA_BRPORT_PAD))
61c0a9a8
NA		 225 return -EMSGSIZE;
226
5d6ae479
NA		 227#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
228 if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
229 p->multicast_router))
230 return -EMSGSIZE;
231#endif
232
25c71c75 233 return 0;
339bf98f
TG		 234}
235
36cd0ffb
RP		 236static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start,
237 u16 vid_end, u16 flags)
238{
239 struct bridge_vlan_info vinfo;
240
241 if ((vid_end - vid_start) > 0) {
242 /* add range to skb */
243 vinfo.vid = vid_start;
244 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN;
245 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
246 sizeof(vinfo), &vinfo))
247 goto nla_put_failure;
248
36cd0ffb
RP		 249 vinfo.vid = vid_end;
250 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END;
251 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
252 sizeof(vinfo), &vinfo))
253 goto nla_put_failure;
254 } else {
255 vinfo.vid = vid_start;
256 vinfo.flags = flags;
257 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
258 sizeof(vinfo), &vinfo))
259 goto nla_put_failure;
260 }
261
262 return 0;
263
264nla_put_failure:
265 return -EMSGSIZE;
266}
267
268static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb,
77751ee8 269 struct net_bridge_vlan_group *vg)
36cd0ffb 270{
2594e906
NA		 271 struct net_bridge_vlan *v;
272 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 273 u16 flags, pvid;
36cd0ffb
RP		 274 int err = 0;
275
276 /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan
277 * and mark vlan info with begin and end flags
278 * if vlaninfo represents a range
279 */
77751ee8 280 pvid = br_get_pvid(vg);
e9c953ef 281 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
36cd0ffb 282 flags = 0;
2594e906
NA		 283 if (!br_vlan_should_use(v))
284 continue;
285 if (v->vid == pvid)
36cd0ffb
RP		 286 flags |= BRIDGE_VLAN_INFO_PVID;
287
2594e906 288 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 289 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
290
291 if (vid_range_start == 0) {
292 goto initvars;
2594e906 293 } else if ((v->vid - vid_range_end) == 1 &&
36cd0ffb 294 flags == vid_range_flags) {
2594e906 295 vid_range_end = v->vid;
36cd0ffb
RP		 296 continue;
297 } else {
298 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
299 vid_range_end,
300 vid_range_flags);
301 if (err)
302 return err;
303 }
304
305initvars:
2594e906
NA		 306 vid_range_start = v->vid;
307 vid_range_end = v->vid;
36cd0ffb
RP		 308 vid_range_flags = flags;
309 }
310
0fe6de49
RP		 311 if (vid_range_start != 0) {
312 /* Call it once more to send any left over vlans */
313 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
314 vid_range_end,
315 vid_range_flags);
316 if (err)
317 return err;
318 }
36cd0ffb
RP		 319
320 return 0;
321}
322
323static int br_fill_ifvlaninfo(struct sk_buff *skb,
77751ee8 324 struct net_bridge_vlan_group *vg)
36cd0ffb
RP		 325{
326 struct bridge_vlan_info vinfo;
2594e906 327 struct net_bridge_vlan *v;
77751ee8 328 u16 pvid;
36cd0ffb 329
77751ee8 330 pvid = br_get_pvid(vg);
e9c953ef 331 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
2594e906
NA		 332 if (!br_vlan_should_use(v))
333 continue;
334
335 vinfo.vid = v->vid;
36cd0ffb 336 vinfo.flags = 0;
2594e906 337 if (v->vid == pvid)
36cd0ffb
RP		 338 vinfo.flags |= BRIDGE_VLAN_INFO_PVID;
339
2594e906 340 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 341 vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
342
343 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
344 sizeof(vinfo), &vinfo))
345 goto nla_put_failure;
346 }
347
348 return 0;
349
350nla_put_failure:
351 return -EMSGSIZE;
352}
353
11dc1f36
SH		 354/*
355 * Create one netlink message for one interface
356 * Contains port and master info as well as carrier and bridge state.
357 */
6cbdceeb 358static int br_fill_ifinfo(struct sk_buff *skb,
2594e906 359 struct net_bridge_port *port,
6cbdceeb
VY		 360 u32 pid, u32 seq, int event, unsigned int flags,
361 u32 filter_mask, const struct net_device *dev)
11dc1f36 362{
2594e906 363 struct net_bridge *br;
74685962 364 struct ifinfomsg *hdr;
11dc1f36 365 struct nlmsghdr *nlh;
11dc1f36 366 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
11dc1f36 367
6cbdceeb
VY		 368 if (port)
369 br = port->br;
370 else
371 br = netdev_priv(dev);
372
28a16c97 373 br_debug(br, "br_fill_info event %d port %s master %s\n",
374 event, dev->name, br->dev->name);
11dc1f36 375
74685962
TG		 376 nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags);
377 if (nlh == NULL)
26932566 378 return -EMSGSIZE;
11dc1f36 379
74685962
TG		 380 hdr = nlmsg_data(nlh);
381 hdr->ifi_family = AF_BRIDGE;
382 hdr->__ifi_pad = 0;
383 hdr->ifi_type = dev->type;
384 hdr->ifi_index = dev->ifindex;
385 hdr->ifi_flags = dev_get_flags(dev);
386 hdr->ifi_change = 0;
11dc1f36 387
2eb812e6
DM		 388 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
389 nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) ||
390 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
391 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
392 (dev->addr_len &&
393 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
a54acb3a
ND		 394 (dev->ifindex != dev_get_iflink(dev) &&
395 nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
2eb812e6 396 goto nla_put_failure;
25c71c75 397
6cbdceeb 398 if (event == RTM_NEWLINK && port) {
25c71c75 399 struct nlattr *nest
400 = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
401
402 if (nest == NULL || br_port_fill_attrs(skb, port) < 0)
403 goto nla_put_failure;
404 nla_nest_end(skb, nest);
405 }
406
6cbdceeb 407 /* Check if the VID information is requested */
36cd0ffb
RP		 408 if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
409 (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
2594e906 410 struct net_bridge_vlan_group *vg;
36cd0ffb
RP		 411 struct nlattr *af;
412 int err;
6cbdceeb 413
e9c953ef
NA		 414 /* RCU needed because of the VLAN locking rules (rcu || rtnl) */
415 rcu_read_lock();
77751ee8 416 if (port)
e9c953ef 417 vg = nbp_vlan_group_rcu(port);
77751ee8 418 else
e9c953ef 419 vg = br_vlan_group_rcu(br);
6cbdceeb 420
e9c953ef
NA		 421 if (!vg || !vg->num_vlans) {
422 rcu_read_unlock();
6cbdceeb 423 goto done;
e9c953ef 424 }
6cbdceeb 425 af = nla_nest_start(skb, IFLA_AF_SPEC);
e9c953ef
NA		 426 if (!af) {
427 rcu_read_unlock();
6cbdceeb 428 goto nla_put_failure;
e9c953ef 429 }
36cd0ffb 430 if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
77751ee8 431 err = br_fill_ifvlaninfo_compressed(skb, vg);
36cd0ffb 432 else
77751ee8 433 err = br_fill_ifvlaninfo(skb, vg);
efa5356b
RP		 434
435 if (port && (port->flags & BR_VLAN_TUNNEL))
436 err = br_fill_vlan_tunnel_info(skb, vg);
e9c953ef 437 rcu_read_unlock();
36cd0ffb
RP		 438 if (err)
439 goto nla_put_failure;
6cbdceeb
VY		 440 nla_nest_end(skb, af);
441 }
442
443done:
053c095a
JB		 444 nlmsg_end(skb, nlh);
445 return 0;
11dc1f36 446
74685962 447nla_put_failure:
26932566
PM		 448 nlmsg_cancel(skb, nlh);
449 return -EMSGSIZE;
11dc1f36
SH		 450}
451
452/*
453 * Notify listeners of a change in port information
454 */
455void br_ifinfo_notify(int event, struct net_bridge_port *port)
456{
407af329 457 struct net *net;
11dc1f36 458 struct sk_buff *skb;
280a306c 459 int err = -ENOBUFS;
fed0a159 460 u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
11dc1f36 461
407af329
VY		 462 if (!port)
463 return;
464
465 net = dev_net(port->dev);
28a16c97 466 br_debug(port->br, "port %u(%s) event %d\n",
95c96174 467 (unsigned int)port->port_no, port->dev->name, event);
28a16c97 468
fed0a159 469 skb = nlmsg_new(br_nlmsg_size(port->dev, filter), GFP_ATOMIC);
280a306c
TG		 470 if (skb == NULL)
471 goto errout;
472
fed0a159 473 err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, port->dev);
26932566
PM		 474 if (err < 0) {
475 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
476 WARN_ON(err == -EMSGSIZE);
477 kfree_skb(skb);
478 goto errout;
479 }
1ce85fe4
PNA		 480 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
481 return;
280a306c 482errout:
87e823b3 483 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
11dc1f36
SH		 484}
485
407af329 486
11dc1f36
SH		 487/*
488 * Dump information about all ports, in response to GETLINK
489 */
e5a55a89 490int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
46c264da 491 struct net_device *dev, u32 filter_mask, int nlflags)
11dc1f36 492{
1fb1754a 493 struct net_bridge_port *port = br_port_get_rtnl(dev);
e5a55a89 494
36cd0ffb
RP		 495 if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
496 !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
1b846f92 497 return 0;
11dc1f36 498
46c264da 499 return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
1b846f92 500 filter_mask, dev);
11dc1f36
SH		 501}
502
bdced7ef
RP		 503static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
504 int cmd, struct bridge_vlan_info *vinfo)
505{
506 int err = 0;
507
508 switch (cmd) {
509 case RTM_SETLINK:
510 if (p) {
2594e906
NA		 511 /* if the MASTER flag is set this will act on the global
512 * per-VLAN entry as well
513 */
bdced7ef
RP		 514 err = nbp_vlan_add(p, vinfo->vid, vinfo->flags);
515 if (err)
516 break;
bdced7ef 517 } else {
2594e906 518 vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY;
bdced7ef
RP		 519 err = br_vlan_add(br, vinfo->vid, vinfo->flags);
520 }
521 break;
522
523 case RTM_DELLINK:
524 if (p) {
525 nbp_vlan_delete(p, vinfo->vid);
526 if (vinfo->flags & BRIDGE_VLAN_INFO_MASTER)
527 br_vlan_delete(p->br, vinfo->vid);
528 } else {
529 br_vlan_delete(br, vinfo->vid);
530 }
531 break;
532 }
533
534 return err;
535}
407af329 536
efa5356b
RP		 537static int br_process_vlan_info(struct net_bridge *br,
538 struct net_bridge_port *p, int cmd,
539 struct bridge_vlan_info *vinfo_curr,
540 struct bridge_vlan_info **vinfo_last)
541{
542 if (!vinfo_curr->vid || vinfo_curr->vid >= VLAN_VID_MASK)
543 return -EINVAL;
544
545 if (vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
546 /* check if we are already processing a range */
547 if (*vinfo_last)
548 return -EINVAL;
549 *vinfo_last = vinfo_curr;
550 /* don't allow range of pvids */
551 if ((*vinfo_last)->flags & BRIDGE_VLAN_INFO_PVID)
552 return -EINVAL;
553 return 0;
554 }
555
556 if (*vinfo_last) {
557 struct bridge_vlan_info tmp_vinfo;
558 int v, err;
559
560 if (!(vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_END))
561 return -EINVAL;
562
563 if (vinfo_curr->vid <= (*vinfo_last)->vid)
564 return -EINVAL;
565
566 memcpy(&tmp_vinfo, *vinfo_last,
567 sizeof(struct bridge_vlan_info));
568 for (v = (*vinfo_last)->vid; v <= vinfo_curr->vid; v++) {
569 tmp_vinfo.vid = v;
570 err = br_vlan_info(br, p, cmd, &tmp_vinfo);
571 if (err)
572 break;
573 }
574 *vinfo_last = NULL;
575
576 return 0;
577 }
578
579 return br_vlan_info(br, p, cmd, vinfo_curr);
580}
581
407af329
VY		 582static int br_afspec(struct net_bridge *br,
583 struct net_bridge_port *p,
584 struct nlattr *af_spec,
585 int cmd)
586{
efa5356b
RP		 587 struct bridge_vlan_info *vinfo_curr = NULL;
588 struct bridge_vlan_info *vinfo_last = NULL;
bdced7ef 589 struct nlattr *attr;
efa5356b
RP		 590 struct vtunnel_info tinfo_last = {};
591 struct vtunnel_info tinfo_curr = {};
592 int err = 0, rem;
407af329 593
bdced7ef 594 nla_for_each_nested(attr, af_spec, rem) {
efa5356b
RP		 595 err = 0;
596 switch (nla_type(attr)) {
597 case IFLA_BRIDGE_VLAN_TUNNEL_INFO:
1020ce31 598 if (!p || !(p->flags & BR_VLAN_TUNNEL))
bdced7ef 599 return -EINVAL;
efa5356b
RP		 600 err = br_parse_vlan_tunnel_info(attr, &tinfo_curr);
601 if (err)
602 return err;
603 err = br_process_vlan_tunnel_info(br, p, cmd,
604 &tinfo_curr,
605 &tinfo_last);
606 if (err)
607 return err;
608 break;
609 case IFLA_BRIDGE_VLAN_INFO:
610 if (nla_len(attr) != sizeof(struct bridge_vlan_info))
6623c60d 611 return -EINVAL;
efa5356b
RP		 612 vinfo_curr = nla_data(attr);
613 err = br_process_vlan_info(br, p, cmd, vinfo_curr,
614 &vinfo_last);
615 if (err)
616 return err;
617 break;
bdced7ef 618 }
407af329
VY		 619 }
620
621 return err;
622}
623
3ac636b8 624static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
25c71c75 625 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
626 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
627 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
628 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
a2e01a65 629 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
1007dd1a 630 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
6f705d8c 631 [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 },
9ba18891 632 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
867a5943 633 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
355b9f9d 634 [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 },
786c2077 635 [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },
5d6ae479 636 [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },
6db6f0ea 637 [IFLA_BRPORT_MCAST_TO_UCAST] = { .type = NLA_U8 },
9051247d
TK		 638 [IFLA_BRPORT_MCAST_FLOOD] = { .type = NLA_U8 },
639 [IFLA_BRPORT_BCAST_FLOOD] = { .type = NLA_U8 },
25c71c75 640};
641
642/* Change the state of the port and notify spanning tree */
643static int br_set_port_state(struct net_bridge_port *p, u8 state)
644{
645 if (state > BR_STATE_BLOCKING)
646 return -EINVAL;
647
648 /* if kernel STP is running, don't allow changes */
649 if (p->br->stp_enabled == BR_KERNEL_STP)
650 return -EBUSY;
651
576eb625 652 /* if device is not up, change is not allowed
653 * if link is not present, only allowable state is disabled
654 */
25c71c75 655 if (!netif_running(p->dev) ||
576eb625 656 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
25c71c75 657 return -ENETDOWN;
658
775dd692 659 br_set_state(p, state);
25c71c75 660 br_port_state_selection(p->br);
661 return 0;
662}
663
664/* Set/clear or port flags based on attribute */
3922285d
AS		 665static int br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
666 int attrtype, unsigned long mask)
25c71c75 667{
3922285d
AS		 668 unsigned long flags;
669 int err;
670
671 if (!tb[attrtype])
672 return 0;
673
674 if (nla_get_u8(tb[attrtype]))
675 flags = p->flags | mask;
676 else
677 flags = p->flags & ~mask;
678
679 err = br_switchdev_set_port_flag(p, flags, mask);
680 if (err)
681 return err;
682
683 p->flags = flags;
684 return 0;
25c71c75 685}
686
687/* Process bridge protocol info on port */
688static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
689{
e028e4b8 690 unsigned long old_flags = p->flags;
efa5356b
RP		 691 bool br_vlan_tunnel_old = false;
692 int err;
25c71c75 693
3922285d
AS		 694 err = br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
695 if (err)
696 return err;
697
698 err = br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
699 if (err)
700 return err;
701
702 err = br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
703 if (err)
704 return err;
705
706 err = br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
707 if (err)
708 return err;
709
710 err = br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
711 if (err)
712 return err;
713
714 err = br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
715 if (err)
716 return err;
717
718 err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);
719 if (err)
720 return err;
721
722 err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST, BR_MULTICAST_TO_UNICAST);
723 if (err)
724 return err;
725
726 err = br_set_port_flag(p, tb, IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD);
727 if (err)
728 return err;
729
730 err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
731 if (err)
732 return err;
733
734 err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
735 if (err)
736 return err;
25c71c75 737
efa5356b 738 br_vlan_tunnel_old = (p->flags & BR_VLAN_TUNNEL) ? true : false;
3922285d
AS		 739 err = br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL);
740 if (err)
741 return err;
742
efa5356b
RP		 743 if (br_vlan_tunnel_old && !(p->flags & BR_VLAN_TUNNEL))
744 nbp_vlan_tunnel_info_flush(p);
745
25c71c75 746 if (tb[IFLA_BRPORT_COST]) {
747 err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
748 if (err)
749 return err;
750 }
751
752 if (tb[IFLA_BRPORT_PRIORITY]) {
753 err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
754 if (err)
755 return err;
756 }
757
758 if (tb[IFLA_BRPORT_STATE]) {
759 err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
760 if (err)
761 return err;
762 }
e028e4b8 763
9b0c6e4d
NA		 764 if (tb[IFLA_BRPORT_FLUSH])
765 br_fdb_delete_by_port(p->br, p, 0, 0);
766
5d6ae479
NA		 767#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
768 if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {
769 u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);
770
771 err = br_multicast_set_port_router(p, mcast_router);
772 if (err)
773 return err;
774 }
775#endif
e028e4b8 776 br_port_flags_change(p, old_flags ^ p->flags);
25c71c75 777 return 0;
778}
779
780/* Change state and parameters on port. */
add511b3 781int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
11dc1f36 782{
74685962 783 struct nlattr *protinfo;
407af329 784 struct nlattr *afspec;
11dc1f36 785 struct net_bridge_port *p;
2062cc20 786 struct nlattr *tb[IFLA_BRPORT_MAX + 1];
41c498b9 787 int err = 0;
11dc1f36 788
c60ee67f
H		 789 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO);
790 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329 791 if (!protinfo && !afspec)
25c71c75 792 return 0;
11dc1f36 793
ec1e5610 794 p = br_port_get_rtnl(dev);
407af329 795 /* We want to accept dev as bridge itself if the AF_SPEC
8e3bff96 796 * is set to see if someone is setting vlan info on the bridge
407af329 797 */
7b99a993 798 if (!p && !afspec)
b5ed54e9 799 return -EINVAL;
11dc1f36 800
407af329
VY		 801 if (p && protinfo) {
802 if (protinfo->nla_type & NLA_F_NESTED) {
fceb6435
JB		 803 err = nla_parse_nested(tb, IFLA_BRPORT_MAX, protinfo,
804 br_port_policy, NULL);
407af329
VY		 805 if (err)
806 return err;
807
808 spin_lock_bh(&p->br->lock);
809 err = br_setport(p, tb);
810 spin_unlock_bh(&p->br->lock);
811 } else {
8e3bff96 812 /* Binary compatibility with old RSTP */
407af329
VY		 813 if (nla_len(protinfo) < sizeof(u8))
814 return -EINVAL;
815
816 spin_lock_bh(&p->br->lock);
817 err = br_set_port_state(p, nla_get_u8(protinfo));
818 spin_unlock_bh(&p->br->lock);
819 }
25c71c75 820 if (err)
407af329
VY		 821 goto out;
822 }
11dc1f36 823
407af329
VY		 824 if (afspec) {
825 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
826 afspec, RTM_SETLINK);
25c71c75 827 }
b03b6dd5 828
25c71c75 829 if (err == 0)
830 br_ifinfo_notify(RTM_NEWLINK, p);
407af329 831out:
25c71c75 832 return err;
11dc1f36
SH		 833}
834
407af329 835/* Delete port information */
add511b3 836int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
407af329 837{
407af329
VY		 838 struct nlattr *afspec;
839 struct net_bridge_port *p;
8508025c 840 int err = 0;
407af329 841
c60ee67f 842 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329
VY		 843 if (!afspec)
844 return 0;
845
846 p = br_port_get_rtnl(dev);
847 /* We want to accept dev as bridge itself as well */
848 if (!p && !(dev->priv_flags & IFF_EBRIDGE))
849 return -EINVAL;
850
851 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
852 afspec, RTM_DELLINK);
02dba438
RP		 853 if (err == 0)
854 /* Send RTM_NEWLINK because userspace
855 * expects RTM_NEWLINK for vlan dels
856 */
857 br_ifinfo_notify(RTM_NEWLINK, p);
407af329
VY		 858
859 return err;
860}
bb900b27 861static int br_validate(struct nlattr *tb[], struct nlattr *data[])
862{
863 if (tb[IFLA_ADDRESS]) {
864 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
865 return -EINVAL;
866 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
867 return -EADDRNOTAVAIL;
868 }
869
d2d427b3
TM		 870 if (!data)
871 return 0;
872
873#ifdef CONFIG_BRIDGE_VLAN_FILTERING
874 if (data[IFLA_BR_VLAN_PROTOCOL]) {
875 switch (nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])) {
876 case htons(ETH_P_8021Q):
877 case htons(ETH_P_8021AD):
878 break;
879 default:
880 return -EPROTONOSUPPORT;
881 }
882 }
a2858602
TJ		 883
884 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
885 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
886
887 if (defpvid >= VLAN_VID_MASK)
888 return -EINVAL;
889 }
d2d427b3
TM		 890#endif
891
bb900b27 892 return 0;
893}
894
3ac636b8
JP		 895static int br_port_slave_changelink(struct net_device *brdev,
896 struct net_device *dev,
897 struct nlattr *tb[],
898 struct nlattr *data[])
899{
963ad948
NA		 900 struct net_bridge *br = netdev_priv(brdev);
901 int ret;
902
3ac636b8
JP		 903 if (!data)
904 return 0;
963ad948
NA		 905
906 spin_lock_bh(&br->lock);
907 ret = br_setport(br_port_get_rtnl(dev), data);
908 spin_unlock_bh(&br->lock);
909
910 return ret;
3ac636b8
JP		 911}
912
ced8283f
JP		 913static int br_port_fill_slave_info(struct sk_buff *skb,
914 const struct net_device *brdev,
915 const struct net_device *dev)
916{
917 return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
918}
919
920static size_t br_port_get_slave_size(const struct net_device *brdev,
921 const struct net_device *dev)
922{
923 return br_port_info_size();
924}
925
13323516
JP		 926static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
927 [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
928 [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
929 [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
af615762
JT		 930 [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
931 [IFLA_BR_STP_STATE] = { .type = NLA_U32 },
932 [IFLA_BR_PRIORITY] = { .type = NLA_U16 },
a7854037 933 [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
d2d427b3 934 [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
7910228b 935 [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
111189ab
NA		 936 [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
937 .len = ETH_ALEN },
a9a6bc70 938 [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
89126327 939 [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
295141d9 940 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
ba062d7c 941 [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
431db3c0 942 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
858079fd 943 [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
79b859f5 944 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
b89e6bab 945 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
7e4df51e
NA		 946 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
947 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
948 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
949 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
950 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
951 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
93870cc0
NA		 952 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 },
953 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 },
954 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 },
0f963b75 955 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 },
6dada9b1 956 [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 },
1080ab95 957 [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 },
5e923585 958 [IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 },
aa2ae3e7 959 [IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 },
13323516
JP		 960};
961
962static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
963 struct nlattr *data[])
964{
965 struct net_bridge *br = netdev_priv(brdev);
966 int err;
967
968 if (!data)
969 return 0;
970
971 if (data[IFLA_BR_FORWARD_DELAY]) {
972 err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
973 if (err)
974 return err;
975 }
976
977 if (data[IFLA_BR_HELLO_TIME]) {
978 err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
979 if (err)
980 return err;
981 }
982
983 if (data[IFLA_BR_MAX_AGE]) {
984 err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
985 if (err)
986 return err;
987 }
988
af615762 989 if (data[IFLA_BR_AGEING_TIME]) {
c62987bb
SF		 990 err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
991 if (err)
992 return err;
af615762
JT		 993 }
994
995 if (data[IFLA_BR_STP_STATE]) {
996 u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
997
998 br_stp_set_enabled(br, stp_enabled);
999 }
1000
1001 if (data[IFLA_BR_PRIORITY]) {
1002 u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]);
1003
1004 br_stp_set_bridge_priority(br, priority);
1005 }
1006
a7854037
NA		 1007 if (data[IFLA_BR_VLAN_FILTERING]) {
1008 u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
1009
1010 err = __br_vlan_filter_toggle(br, vlan_filter);
1011 if (err)
1012 return err;
1013 }
1014
d2d427b3
TM		 1015#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1016 if (data[IFLA_BR_VLAN_PROTOCOL]) {
1017 __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]);
1018
1019 err = __br_vlan_set_proto(br, vlan_proto);
1020 if (err)
1021 return err;
1022 }
0f963b75
NA		 1023
1024 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
1025 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
1026
1027 err = __br_vlan_set_default_pvid(br, defpvid);
1028 if (err)
1029 return err;
1030 }
6dada9b1
NA		 1031
1032 if (data[IFLA_BR_VLAN_STATS_ENABLED]) {
1033 __u8 vlan_stats = nla_get_u8(data[IFLA_BR_VLAN_STATS_ENABLED]);
1034
1035 err = br_vlan_set_stats(br, vlan_stats);
1036 if (err)
1037 return err;
1038 }
d2d427b3
TM		 1039#endif
1040
7910228b
NA		 1041 if (data[IFLA_BR_GROUP_FWD_MASK]) {
1042 u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);
1043
1044 if (fwd_mask & BR_GROUPFWD_RESTRICTED)
1045 return -EINVAL;
1046 br->group_fwd_mask = fwd_mask;
1047 }
1048
111189ab
NA		 1049 if (data[IFLA_BR_GROUP_ADDR]) {
1050 u8 new_addr[ETH_ALEN];
1051
1052 if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
1053 return -EINVAL;
1054 memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
1055 if (!is_link_local_ether_addr(new_addr))
1056 return -EINVAL;
1057 if (new_addr[5] == 1 || /* 802.3x Pause address */
1058 new_addr[5] == 2 || /* 802.3ad Slow protocols */
1059 new_addr[5] == 3) /* 802.1X PAE address */
1060 return -EINVAL;
1061 spin_lock_bh(&br->lock);
1062 memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
1063 spin_unlock_bh(&br->lock);
1064 br->group_addr_set = true;
1065 br_recalculate_fwd_mask(br);
1066 }
1067
150217c6
NA		 1068 if (data[IFLA_BR_FDB_FLUSH])
1069 br_fdb_flush(br);
1070
a9a6bc70
NA		 1071#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1072 if (data[IFLA_BR_MCAST_ROUTER]) {
1073 u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]);
1074
1075 err = br_multicast_set_router(br, multicast_router);
1076 if (err)
1077 return err;
1078 }
89126327
NA		 1079
1080 if (data[IFLA_BR_MCAST_SNOOPING]) {
1081 u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
1082
1083 err = br_multicast_toggle(br, mcast_snooping);
1084 if (err)
1085 return err;
1086 }
295141d9
NA		 1087
1088 if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {
1089 u8 val;
1090
1091 val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
1092 br->multicast_query_use_ifaddr = !!val;
1093 }
ba062d7c
NA		 1094
1095 if (data[IFLA_BR_MCAST_QUERIER]) {
1096 u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
1097
1098 err = br_multicast_set_querier(br, mcast_querier);
1099 if (err)
1100 return err;
1101 }
431db3c0
NA		 1102
1103 if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) {
1104 u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]);
1105
1106 br->hash_elasticity = val;
1107 }
858079fd
NA		 1108
1109 if (data[IFLA_BR_MCAST_HASH_MAX]) {
1110 u32 hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]);
1111
1112 err = br_multicast_set_hash_max(br, hash_max);
1113 if (err)
1114 return err;
1115 }
79b859f5
NA		 1116
1117 if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
1118 u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
1119
1120 br->multicast_last_member_count = val;
1121 }
b89e6bab
NA		 1122
1123 if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
1124 u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
1125
1126 br->multicast_startup_query_count = val;
1127 }
7e4df51e
NA		 1128
1129 if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
1130 u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
1131
1132 br->multicast_last_member_interval = clock_t_to_jiffies(val);
1133 }
1134
1135 if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
1136 u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
1137
1138 br->multicast_membership_interval = clock_t_to_jiffies(val);
1139 }
1140
1141 if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
1142 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
1143
1144 br->multicast_querier_interval = clock_t_to_jiffies(val);
1145 }
1146
1147 if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
1148 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
1149
1150 br->multicast_query_interval = clock_t_to_jiffies(val);
1151 }
1152
1153 if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
1154 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
1155
1156 br->multicast_query_response_interval = clock_t_to_jiffies(val);
1157 }
1158
1159 if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
1160 u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
1161
1162 br->multicast_startup_query_interval = clock_t_to_jiffies(val);
1163 }
1080ab95
NA		 1164
1165 if (data[IFLA_BR_MCAST_STATS_ENABLED]) {
1166 __u8 mcast_stats;
1167
1168 mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]);
1169 br->multicast_stats_enabled = !!mcast_stats;
1170 }
5e923585
NA		 1171
1172 if (data[IFLA_BR_MCAST_IGMP_VERSION]) {
1173 __u8 igmp_version;
1174
1175 igmp_version = nla_get_u8(data[IFLA_BR_MCAST_IGMP_VERSION]);
1176 err = br_multicast_set_igmp_version(br, igmp_version);
1177 if (err)
1178 return err;
1179 }
aa2ae3e7
NA		 1180
1181#if IS_ENABLED(CONFIG_IPV6)
1182 if (data[IFLA_BR_MCAST_MLD_VERSION]) {
1183 __u8 mld_version;
1184
1185 mld_version = nla_get_u8(data[IFLA_BR_MCAST_MLD_VERSION]);
1186 err = br_multicast_set_mld_version(br, mld_version);
1187 if (err)
1188 return err;
1189 }
1190#endif
a9a6bc70 1191#endif
93870cc0
NA		 1192#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1193 if (data[IFLA_BR_NF_CALL_IPTABLES]) {
1194 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]);
1195
1196 br->nf_call_iptables = val ? true : false;
1197 }
1198
1199 if (data[IFLA_BR_NF_CALL_IP6TABLES]) {
1200 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]);
1201
1202 br->nf_call_ip6tables = val ? true : false;
1203 }
1204
1205 if (data[IFLA_BR_NF_CALL_ARPTABLES]) {
1206 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]);
1207
1208 br->nf_call_arptables = val ? true : false;
1209 }
1210#endif
a9a6bc70 1211
13323516
JP		 1212 return 0;
1213}
1214
b6677449
IV		 1215static int br_dev_newlink(struct net *src_net, struct net_device *dev,
1216 struct nlattr *tb[], struct nlattr *data[])
1217{
1218 struct net_bridge *br = netdev_priv(dev);
1219 int err;
1220
1221 if (tb[IFLA_ADDRESS]) {
1222 spin_lock_bh(&br->lock);
1223 br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
1224 spin_unlock_bh(&br->lock);
1225 }
1226
5b8d5429 1227 err = register_netdevice(dev);
b6677449
IV		 1228 if (err)
1229 return err;
1230
5b8d5429
IS		 1231 err = br_changelink(dev, tb, data);
1232 if (err)
1233 unregister_netdevice(dev);
1234 return err;
b6677449
IV		 1235}
1236
e5c3ea5c
JP		 1237static size_t br_get_size(const struct net_device *brdev)
1238{
1239 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1240 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1241 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
af615762
JT		 1242 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1243 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1244 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
a7854037 1245 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
d2d427b3
TM		 1246#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1247 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
0f963b75 1248 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
6dada9b1 1249 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */
d2d427b3 1250#endif
7910228b 1251 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
5127c81f 1252 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
7599a220 1253 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
8762ba68 1254 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
684dd248 1255 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
b89e6bab
NA		 1256 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1257 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
12a0faa3
ND		 1258 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1259 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1260 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1261 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
111189ab 1262 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
a9a6bc70
NA		 1263#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1264 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
89126327 1265 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
295141d9 1266 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
ba062d7c 1267 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
1080ab95 1268 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */
b89e6bab
NA		 1269 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1270 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1271 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1272 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
12a0faa3
ND		 1273 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1274 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1275 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1276 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1277 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1278 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
5e923585 1279 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_IGMP_VERSION */
aa2ae3e7 1280 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_MLD_VERSION */
93870cc0
NA		 1281#endif
1282#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1283 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1284 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1285 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
a9a6bc70 1286#endif
e5c3ea5c
JP		 1287 0;
1288}
1289
1290static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1291{
1292 struct net_bridge *br = netdev_priv(brdev);
1293 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1294 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1295 u32 age_time = jiffies_to_clock_t(br->max_age);
af615762
JT		 1296 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1297 u32 stp_enabled = br->stp_enabled;
1298 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
1f51445a 1299 u8 vlan_enabled = br_vlan_enabled(br->dev);
4917a154
NA		 1300 u64 clockval;
1301
1302 clockval = br_timer_value(&br->hello_timer);
12a0faa3 1303 if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1304 return -EMSGSIZE;
1305 clockval = br_timer_value(&br->tcn_timer);
12a0faa3 1306 if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1307 return -EMSGSIZE;
1308 clockval = br_timer_value(&br->topology_change_timer);
12a0faa3
ND		 1309 if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval,
1310 IFLA_BR_PAD))
4917a154 1311 return -EMSGSIZE;
f7cdee8a 1312 clockval = br_timer_value(&br->gc_work.timer);
12a0faa3 1313 if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD))
4917a154 1314 return -EMSGSIZE;
e5c3ea5c
JP		 1315
1316 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1317 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
af615762
JT		 1318 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1319 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1320 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
a7854037 1321 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
7910228b 1322 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
4917a154
NA		 1323 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1324 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1325 &br->bridge_id) ||
1326 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1327 &br->designated_root) ||
684dd248 1328 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
ed416309
NA		 1329 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1330 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1331 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
d76bd14e 1332 br->topology_change_detected) ||
111189ab 1333 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr))
e5c3ea5c
JP		 1334 return -EMSGSIZE;
1335
d2d427b3 1336#ifdef CONFIG_BRIDGE_VLAN_FILTERING
0f963b75 1337 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
6dada9b1
NA		 1338 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) ||
1339 nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED, br->vlan_stats_enabled))
d2d427b3
TM		 1340 return -EMSGSIZE;
1341#endif
a9a6bc70 1342#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
89126327 1343 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
295141d9
NA		 1344 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||
1345 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
ba062d7c 1346 br->multicast_query_use_ifaddr) ||
431db3c0 1347 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||
1080ab95
NA		 1348 nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED,
1349 br->multicast_stats_enabled) ||
431db3c0 1350 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,
858079fd 1351 br->hash_elasticity) ||
79b859f5
NA		 1352 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1353 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
b89e6bab
NA		 1354 br->multicast_last_member_count) ||
1355 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
5e923585
NA		 1356 br->multicast_startup_query_count) ||
1357 nla_put_u8(skb, IFLA_BR_MCAST_IGMP_VERSION,
1358 br->multicast_igmp_version))
a9a6bc70 1359 return -EMSGSIZE;
aa2ae3e7
NA		 1360#if IS_ENABLED(CONFIG_IPV6)
1361 if (nla_put_u8(skb, IFLA_BR_MCAST_MLD_VERSION,
1362 br->multicast_mld_version))
1363 return -EMSGSIZE;
1364#endif
7e4df51e 1365 clockval = jiffies_to_clock_t(br->multicast_last_member_interval);
12a0faa3
ND		 1366 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval,
1367 IFLA_BR_PAD))
7e4df51e
NA		 1368 return -EMSGSIZE;
1369 clockval = jiffies_to_clock_t(br->multicast_membership_interval);
12a0faa3
ND		 1370 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval,
1371 IFLA_BR_PAD))
7e4df51e
NA		 1372 return -EMSGSIZE;
1373 clockval = jiffies_to_clock_t(br->multicast_querier_interval);
12a0faa3
ND		 1374 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval,
1375 IFLA_BR_PAD))
7e4df51e
NA		 1376 return -EMSGSIZE;
1377 clockval = jiffies_to_clock_t(br->multicast_query_interval);
12a0faa3
ND		 1378 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval,
1379 IFLA_BR_PAD))
7e4df51e
NA		 1380 return -EMSGSIZE;
1381 clockval = jiffies_to_clock_t(br->multicast_query_response_interval);
12a0faa3
ND		 1382 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval,
1383 IFLA_BR_PAD))
7e4df51e
NA		 1384 return -EMSGSIZE;
1385 clockval = jiffies_to_clock_t(br->multicast_startup_query_interval);
12a0faa3
ND		 1386 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval,
1387 IFLA_BR_PAD))
7e4df51e 1388 return -EMSGSIZE;
a9a6bc70 1389#endif
93870cc0
NA		 1390#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1391 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
1392 br->nf_call_iptables ? 1 : 0) ||
1393 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
1394 br->nf_call_ip6tables ? 1 : 0) ||
1395 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
1396 br->nf_call_arptables ? 1 : 0))
1397 return -EMSGSIZE;
1398#endif
a9a6bc70 1399
e5c3ea5c
JP		 1400 return 0;
1401}
1402
d5ff8c41 1403static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
a60c0903 1404{
d5ff8c41 1405 struct net_bridge_port *p = NULL;
a60c0903
NA		 1406 struct net_bridge_vlan_group *vg;
1407 struct net_bridge_vlan *v;
d5ff8c41 1408 struct net_bridge *br;
a60c0903
NA		 1409 int numvls = 0;
1410
d5ff8c41
NA		 1411 switch (attr) {
1412 case IFLA_STATS_LINK_XSTATS:
1413 br = netdev_priv(dev);
1414 vg = br_vlan_group(br);
1415 break;
1416 case IFLA_STATS_LINK_XSTATS_SLAVE:
1417 p = br_port_get_rtnl(dev);
1418 if (!p)
1419 return 0;
1420 br = p->br;
1421 vg = nbp_vlan_group(p);
1422 break;
1423 default:
1424 return 0;
1425 }
1426
1080ab95
NA		 1427 if (vg) {
1428 /* we need to count all, even placeholder entries */
1429 list_for_each_entry(v, &vg->vlan_list, vlist)
1430 numvls++;
1431 }
a60c0903 1432
a60c0903 1433 return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
1080ab95 1434 nla_total_size(sizeof(struct br_mcast_stats)) +
a60c0903
NA		 1435 nla_total_size(0);
1436}
1437
d5ff8c41
NA		 1438static int br_fill_linkxstats(struct sk_buff *skb,
1439 const struct net_device *dev,
1440 int *prividx, int attr)
80e73cc5 1441{
d5ff8c41
NA		 1442 struct nlattr *nla __maybe_unused;
1443 struct net_bridge_port *p = NULL;
1444 struct net_bridge_vlan_group *vg;
1445 struct net_bridge_vlan *v;
1446 struct net_bridge *br;
1447 struct nlattr *nest;
1448 int vl_idx = 0;
80e73cc5
NA		 1449
1450 switch (attr) {
1451 case IFLA_STATS_LINK_XSTATS:
d5ff8c41
NA		 1452 br = netdev_priv(dev);
1453 vg = br_vlan_group(br);
80e73cc5
NA		 1454 break;
1455 case IFLA_STATS_LINK_XSTATS_SLAVE:
d5ff8c41
NA		 1456 p = br_port_get_rtnl(dev);
1457 if (!p)
1458 return 0;
1459 br = p->br;
1460 vg = nbp_vlan_group(p);
80e73cc5 1461 break;
d5ff8c41
NA		 1462 default:
1463 return -EINVAL;
80e73cc5
NA		 1464 }
1465
a60c0903
NA		 1466 nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE);
1467 if (!nest)
1468 return -EMSGSIZE;
a60c0903 1469
1080ab95 1470 if (vg) {
72f4af4e
NA		 1471 u16 pvid;
1472
1473 pvid = br_get_pvid(vg);
1080ab95
NA		 1474 list_for_each_entry(v, &vg->vlan_list, vlist) {
1475 struct bridge_vlan_xstats vxi;
1476 struct br_vlan_stats stats;
1477
1478 if (++vl_idx < *prividx)
1479 continue;
1480 memset(&vxi, 0, sizeof(vxi));
1481 vxi.vid = v->vid;
61ba1a2d 1482 vxi.flags = v->flags;
72f4af4e
NA		 1483 if (v->vid == pvid)
1484 vxi.flags |= BRIDGE_VLAN_INFO_PVID;
1080ab95
NA		 1485 br_vlan_get_stats(v, &stats);
1486 vxi.rx_bytes = stats.rx_bytes;
1487 vxi.rx_packets = stats.rx_packets;
1488 vxi.tx_bytes = stats.tx_bytes;
1489 vxi.tx_packets = stats.tx_packets;
1490
1491 if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi))
1492 goto nla_put_failure;
1493 }
1494 }
1495
1496#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1497 if (++vl_idx >= *prividx) {
1498 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST,
1499 sizeof(struct br_mcast_stats),
1500 BRIDGE_XSTATS_PAD);
1501 if (!nla)
a60c0903 1502 goto nla_put_failure;
d5ff8c41 1503 br_multicast_get_stats(br, p, nla_data(nla));
a60c0903 1504 }
1080ab95 1505#endif
a60c0903
NA		 1506 nla_nest_end(skb, nest);
1507 *prividx = 0;
1080ab95 1508
a60c0903
NA		 1509 return 0;
1510
1511nla_put_failure:
1512 nla_nest_end(skb, nest);
1513 *prividx = vl_idx;
1514
1515 return -EMSGSIZE;
1516}
fed0a159 1517
207895fd 1518static struct rtnl_af_ops br_af_ops __read_mostly = {
6cbdceeb 1519 .family = AF_BRIDGE,
b1974ed0 1520 .get_link_af_size = br_get_link_af_size_filtered,
6cbdceeb
VY		 1521};
1522
149ddd83 1523struct rtnl_link_ops br_link_ops __read_mostly = {
ced8283f
JP		 1524 .kind = "bridge",
1525 .priv_size = sizeof(struct net_bridge),
1526 .setup = br_dev_setup,
eb4cb851 1527 .maxtype = IFLA_BR_MAX,
13323516 1528 .policy = br_policy,
ced8283f
JP		 1529 .validate = br_validate,
1530 .newlink = br_dev_newlink,
13323516 1531 .changelink = br_changelink,
ced8283f 1532 .dellink = br_dev_delete,
e5c3ea5c
JP		 1533 .get_size = br_get_size,
1534 .fill_info = br_fill_info,
a60c0903
NA		 1535 .fill_linkxstats = br_fill_linkxstats,
1536 .get_linkxstats_size = br_get_linkxstats_size,
3ac636b8
JP		 1537
1538 .slave_maxtype = IFLA_BRPORT_MAX,
1539 .slave_policy = br_port_policy,
1540 .slave_changelink = br_port_slave_changelink,
ced8283f
JP		 1541 .get_slave_size = br_port_get_slave_size,
1542 .fill_slave_info = br_port_fill_slave_info,
bb900b27 1543};
11dc1f36 1544
32fe21c0 1545int __init br_netlink_init(void)
11dc1f36 1546{
3ec8e9f0
VY		 1547 int err;
1548
1549 br_mdb_init();
3678a9d8 1550 rtnl_af_register(&br_af_ops);
3ec8e9f0 1551
6cbdceeb
VY		 1552 err = rtnl_link_register(&br_link_ops);
1553 if (err)
1554 goto out_af;
1555
3ec8e9f0 1556 return 0;
6cbdceeb
VY		 1557
1558out_af:
1559 rtnl_af_unregister(&br_af_ops);
3ec8e9f0
VY		 1560 br_mdb_uninit();
1561 return err;
11dc1f36
SH		 1562}
1563
34666d46 1564void br_netlink_fini(void)
11dc1f36 1565{
3ec8e9f0 1566 br_mdb_uninit();
6cbdceeb 1567 rtnl_af_unregister(&br_af_ops);
bb900b27 1568 rtnl_link_unregister(&br_link_ops);
11dc1f36 1569}
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