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Merge tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
[mirror_ubuntu-artful-kernel.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 */
355b9f9d 136 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP */
786c2077 137 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP_WIFI */
efa5356b 138 + nla_total_size(1) /* IFLA_BRPORT_VLAN_TUNNEL */
4ebc7660 139 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
80df9a26 140 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */
96f94e7f
NA		 141 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */
142 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */
42d452c4
NA		 143 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_ID */
144 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_NO */
e08e838a
NA		 145 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */
146 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_CONFIG_PENDING */
12a0faa3
ND		 147 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */
148 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */
149 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_HOLD_TIMER */
5d6ae479
NA		 150#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
151 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MULTICAST_ROUTER */
152#endif
25c71c75 153 + 0;
154}
155
fed0a159 156static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask)
339bf98f
TG		 157{
158 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
25c71c75 159 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
160 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
161 + nla_total_size(4) /* IFLA_MASTER */
162 + nla_total_size(4) /* IFLA_MTU */
163 + nla_total_size(4) /* IFLA_LINK */
164 + nla_total_size(1) /* IFLA_OPERSTATE */
b7853d73 165 + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */
fed0a159
RP		 166 + nla_total_size(br_get_link_af_size_filtered(dev,
167 filter_mask)); /* IFLA_AF_SPEC */
25c71c75 168}
169
170static int br_port_fill_attrs(struct sk_buff *skb,
171 const struct net_bridge_port *p)
172{
173 u8 mode = !!(p->flags & BR_HAIRPIN_MODE);
61c0a9a8 174 u64 timerval;
25c71c75 175
176 if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
177 nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) ||
178 nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) ||
a2e01a65 179 nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
1007dd1a 180 nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
b6cb5ac8
NA		 181 nla_put_u8(skb, IFLA_BRPORT_PROTECT,
182 !!(p->flags & BR_ROOT_BLOCK)) ||
183 nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE,
184 !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||
6db6f0ea
FF		 185 nla_put_u8(skb, IFLA_BRPORT_MCAST_TO_UCAST,
186 !!(p->flags & BR_MULTICAST_TO_UNICAST)) ||
867a5943 187 nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) ||
b6cb5ac8
NA		 188 nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD,
189 !!(p->flags & BR_FLOOD)) ||
190 nla_put_u8(skb, IFLA_BRPORT_MCAST_FLOOD,
191 !!(p->flags & BR_MCAST_FLOOD)) ||
99f906e9
MM		 192 nla_put_u8(skb, IFLA_BRPORT_BCAST_FLOOD,
193 !!(p->flags & BR_BCAST_FLOOD)) ||
842a9ae0
JM		 194 nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) ||
195 nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI,
4ebc7660
NA		 196 !!(p->flags & BR_PROXYARP_WIFI)) ||
197 nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
80df9a26
NA		 198 &p->designated_root) ||
199 nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id),
96f94e7f
NA		 200 &p->designated_bridge) ||
201 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) ||
42d452c4
NA		 202 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost) ||
203 nla_put_u16(skb, IFLA_BRPORT_ID, p->port_id) ||
e08e838a
NA		 204 nla_put_u16(skb, IFLA_BRPORT_NO, p->port_no) ||
205 nla_put_u8(skb, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
206 p->topology_change_ack) ||
efa5356b
RP		 207 nla_put_u8(skb, IFLA_BRPORT_CONFIG_PENDING, p->config_pending) ||
208 nla_put_u8(skb, IFLA_BRPORT_VLAN_TUNNEL, !!(p->flags &
209 BR_VLAN_TUNNEL)))
25c71c75 210 return -EMSGSIZE;
211
61c0a9a8 212 timerval = br_timer_value(&p->message_age_timer);
12a0faa3
ND		 213 if (nla_put_u64_64bit(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval,
214 IFLA_BRPORT_PAD))
61c0a9a8
NA		 215 return -EMSGSIZE;
216 timerval = br_timer_value(&p->forward_delay_timer);
12a0faa3
ND		 217 if (nla_put_u64_64bit(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval,
218 IFLA_BRPORT_PAD))
61c0a9a8
NA		 219 return -EMSGSIZE;
220 timerval = br_timer_value(&p->hold_timer);
12a0faa3
ND		 221 if (nla_put_u64_64bit(skb, IFLA_BRPORT_HOLD_TIMER, timerval,
222 IFLA_BRPORT_PAD))
61c0a9a8
NA		 223 return -EMSGSIZE;
224
5d6ae479
NA		 225#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
226 if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
227 p->multicast_router))
228 return -EMSGSIZE;
229#endif
230
25c71c75 231 return 0;
339bf98f
TG		 232}
233
36cd0ffb
RP		 234static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start,
235 u16 vid_end, u16 flags)
236{
237 struct bridge_vlan_info vinfo;
238
239 if ((vid_end - vid_start) > 0) {
240 /* add range to skb */
241 vinfo.vid = vid_start;
242 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN;
243 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
244 sizeof(vinfo), &vinfo))
245 goto nla_put_failure;
246
36cd0ffb
RP		 247 vinfo.vid = vid_end;
248 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END;
249 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
250 sizeof(vinfo), &vinfo))
251 goto nla_put_failure;
252 } else {
253 vinfo.vid = vid_start;
254 vinfo.flags = flags;
255 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
256 sizeof(vinfo), &vinfo))
257 goto nla_put_failure;
258 }
259
260 return 0;
261
262nla_put_failure:
263 return -EMSGSIZE;
264}
265
266static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb,
77751ee8 267 struct net_bridge_vlan_group *vg)
36cd0ffb 268{
2594e906
NA		 269 struct net_bridge_vlan *v;
270 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 271 u16 flags, pvid;
36cd0ffb
RP		 272 int err = 0;
273
274 /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan
275 * and mark vlan info with begin and end flags
276 * if vlaninfo represents a range
277 */
77751ee8 278 pvid = br_get_pvid(vg);
e9c953ef 279 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
36cd0ffb 280 flags = 0;
2594e906
NA		 281 if (!br_vlan_should_use(v))
282 continue;
283 if (v->vid == pvid)
36cd0ffb
RP		 284 flags |= BRIDGE_VLAN_INFO_PVID;
285
2594e906 286 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 287 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
288
289 if (vid_range_start == 0) {
290 goto initvars;
2594e906 291 } else if ((v->vid - vid_range_end) == 1 &&
36cd0ffb 292 flags == vid_range_flags) {
2594e906 293 vid_range_end = v->vid;
36cd0ffb
RP		 294 continue;
295 } else {
296 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
297 vid_range_end,
298 vid_range_flags);
299 if (err)
300 return err;
301 }
302
303initvars:
2594e906
NA		 304 vid_range_start = v->vid;
305 vid_range_end = v->vid;
36cd0ffb
RP		 306 vid_range_flags = flags;
307 }
308
0fe6de49
RP		 309 if (vid_range_start != 0) {
310 /* Call it once more to send any left over vlans */
311 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
312 vid_range_end,
313 vid_range_flags);
314 if (err)
315 return err;
316 }
36cd0ffb
RP		 317
318 return 0;
319}
320
321static int br_fill_ifvlaninfo(struct sk_buff *skb,
77751ee8 322 struct net_bridge_vlan_group *vg)
36cd0ffb
RP		 323{
324 struct bridge_vlan_info vinfo;
2594e906 325 struct net_bridge_vlan *v;
77751ee8 326 u16 pvid;
36cd0ffb 327
77751ee8 328 pvid = br_get_pvid(vg);
e9c953ef 329 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
2594e906
NA		 330 if (!br_vlan_should_use(v))
331 continue;
332
333 vinfo.vid = v->vid;
36cd0ffb 334 vinfo.flags = 0;
2594e906 335 if (v->vid == pvid)
36cd0ffb
RP		 336 vinfo.flags |= BRIDGE_VLAN_INFO_PVID;
337
2594e906 338 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 339 vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
340
341 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
342 sizeof(vinfo), &vinfo))
343 goto nla_put_failure;
344 }
345
346 return 0;
347
348nla_put_failure:
349 return -EMSGSIZE;
350}
351
11dc1f36
SH		 352/*
353 * Create one netlink message for one interface
354 * Contains port and master info as well as carrier and bridge state.
355 */
6cbdceeb 356static int br_fill_ifinfo(struct sk_buff *skb,
2594e906 357 struct net_bridge_port *port,
6cbdceeb
VY		 358 u32 pid, u32 seq, int event, unsigned int flags,
359 u32 filter_mask, const struct net_device *dev)
11dc1f36 360{
2594e906 361 struct net_bridge *br;
74685962 362 struct ifinfomsg *hdr;
11dc1f36 363 struct nlmsghdr *nlh;
11dc1f36 364 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
11dc1f36 365
6cbdceeb
VY		 366 if (port)
367 br = port->br;
368 else
369 br = netdev_priv(dev);
370
28a16c97 371 br_debug(br, "br_fill_info event %d port %s master %s\n",
372 event, dev->name, br->dev->name);
11dc1f36 373
74685962
TG		 374 nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags);
375 if (nlh == NULL)
26932566 376 return -EMSGSIZE;
11dc1f36 377
74685962
TG		 378 hdr = nlmsg_data(nlh);
379 hdr->ifi_family = AF_BRIDGE;
380 hdr->__ifi_pad = 0;
381 hdr->ifi_type = dev->type;
382 hdr->ifi_index = dev->ifindex;
383 hdr->ifi_flags = dev_get_flags(dev);
384 hdr->ifi_change = 0;
11dc1f36 385
2eb812e6
DM		 386 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
387 nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) ||
388 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
389 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
390 (dev->addr_len &&
391 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
a54acb3a
ND		 392 (dev->ifindex != dev_get_iflink(dev) &&
393 nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
2eb812e6 394 goto nla_put_failure;
25c71c75 395
6cbdceeb 396 if (event == RTM_NEWLINK && port) {
25c71c75 397 struct nlattr *nest
398 = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
399
400 if (nest == NULL || br_port_fill_attrs(skb, port) < 0)
401 goto nla_put_failure;
402 nla_nest_end(skb, nest);
403 }
404
6cbdceeb 405 /* Check if the VID information is requested */
36cd0ffb
RP		 406 if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
407 (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
2594e906 408 struct net_bridge_vlan_group *vg;
36cd0ffb
RP		 409 struct nlattr *af;
410 int err;
6cbdceeb 411
e9c953ef
NA		 412 /* RCU needed because of the VLAN locking rules (rcu || rtnl) */
413 rcu_read_lock();
77751ee8 414 if (port)
e9c953ef 415 vg = nbp_vlan_group_rcu(port);
77751ee8 416 else
e9c953ef 417 vg = br_vlan_group_rcu(br);
6cbdceeb 418
e9c953ef
NA		 419 if (!vg || !vg->num_vlans) {
420 rcu_read_unlock();
6cbdceeb 421 goto done;
e9c953ef 422 }
6cbdceeb 423 af = nla_nest_start(skb, IFLA_AF_SPEC);
e9c953ef
NA		 424 if (!af) {
425 rcu_read_unlock();
6cbdceeb 426 goto nla_put_failure;
e9c953ef 427 }
36cd0ffb 428 if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
77751ee8 429 err = br_fill_ifvlaninfo_compressed(skb, vg);
36cd0ffb 430 else
77751ee8 431 err = br_fill_ifvlaninfo(skb, vg);
efa5356b
RP		 432
433 if (port && (port->flags & BR_VLAN_TUNNEL))
434 err = br_fill_vlan_tunnel_info(skb, vg);
e9c953ef 435 rcu_read_unlock();
36cd0ffb
RP		 436 if (err)
437 goto nla_put_failure;
6cbdceeb
VY		 438 nla_nest_end(skb, af);
439 }
440
441done:
053c095a
JB		 442 nlmsg_end(skb, nlh);
443 return 0;
11dc1f36 444
74685962 445nla_put_failure:
26932566
PM		 446 nlmsg_cancel(skb, nlh);
447 return -EMSGSIZE;
11dc1f36
SH		 448}
449
450/*
451 * Notify listeners of a change in port information
452 */
453void br_ifinfo_notify(int event, struct net_bridge_port *port)
454{
407af329 455 struct net *net;
11dc1f36 456 struct sk_buff *skb;
280a306c 457 int err = -ENOBUFS;
fed0a159 458 u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
11dc1f36 459
407af329
VY		 460 if (!port)
461 return;
462
463 net = dev_net(port->dev);
28a16c97 464 br_debug(port->br, "port %u(%s) event %d\n",
95c96174 465 (unsigned int)port->port_no, port->dev->name, event);
28a16c97 466
fed0a159 467 skb = nlmsg_new(br_nlmsg_size(port->dev, filter), GFP_ATOMIC);
280a306c
TG		 468 if (skb == NULL)
469 goto errout;
470
fed0a159 471 err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, port->dev);
26932566
PM		 472 if (err < 0) {
473 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
474 WARN_ON(err == -EMSGSIZE);
475 kfree_skb(skb);
476 goto errout;
477 }
1ce85fe4
PNA		 478 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
479 return;
280a306c 480errout:
87e823b3 481 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
11dc1f36
SH		 482}
483
407af329 484
11dc1f36
SH		 485/*
486 * Dump information about all ports, in response to GETLINK
487 */
e5a55a89 488int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
46c264da 489 struct net_device *dev, u32 filter_mask, int nlflags)
11dc1f36 490{
1fb1754a 491 struct net_bridge_port *port = br_port_get_rtnl(dev);
e5a55a89 492
36cd0ffb
RP		 493 if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
494 !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
1b846f92 495 return 0;
11dc1f36 496
46c264da 497 return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
1b846f92 498 filter_mask, dev);
11dc1f36
SH		 499}
500
bdced7ef
RP		 501static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
502 int cmd, struct bridge_vlan_info *vinfo)
503{
504 int err = 0;
505
506 switch (cmd) {
507 case RTM_SETLINK:
508 if (p) {
2594e906
NA		 509 /* if the MASTER flag is set this will act on the global
510 * per-VLAN entry as well
511 */
bdced7ef
RP		 512 err = nbp_vlan_add(p, vinfo->vid, vinfo->flags);
513 if (err)
514 break;
bdced7ef 515 } else {
2594e906 516 vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY;
bdced7ef
RP		 517 err = br_vlan_add(br, vinfo->vid, vinfo->flags);
518 }
519 break;
520
521 case RTM_DELLINK:
522 if (p) {
523 nbp_vlan_delete(p, vinfo->vid);
524 if (vinfo->flags & BRIDGE_VLAN_INFO_MASTER)
525 br_vlan_delete(p->br, vinfo->vid);
526 } else {
527 br_vlan_delete(br, vinfo->vid);
528 }
529 break;
530 }
531
532 return err;
533}
407af329 534
efa5356b
RP		 535static int br_process_vlan_info(struct net_bridge *br,
536 struct net_bridge_port *p, int cmd,
537 struct bridge_vlan_info *vinfo_curr,
538 struct bridge_vlan_info **vinfo_last)
539{
540 if (!vinfo_curr->vid || vinfo_curr->vid >= VLAN_VID_MASK)
541 return -EINVAL;
542
543 if (vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
544 /* check if we are already processing a range */
545 if (*vinfo_last)
546 return -EINVAL;
547 *vinfo_last = vinfo_curr;
548 /* don't allow range of pvids */
549 if ((*vinfo_last)->flags & BRIDGE_VLAN_INFO_PVID)
550 return -EINVAL;
551 return 0;
552 }
553
554 if (*vinfo_last) {
555 struct bridge_vlan_info tmp_vinfo;
556 int v, err;
557
558 if (!(vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_END))
559 return -EINVAL;
560
561 if (vinfo_curr->vid <= (*vinfo_last)->vid)
562 return -EINVAL;
563
564 memcpy(&tmp_vinfo, *vinfo_last,
565 sizeof(struct bridge_vlan_info));
566 for (v = (*vinfo_last)->vid; v <= vinfo_curr->vid; v++) {
567 tmp_vinfo.vid = v;
568 err = br_vlan_info(br, p, cmd, &tmp_vinfo);
569 if (err)
570 break;
571 }
572 *vinfo_last = NULL;
573
574 return 0;
575 }
576
577 return br_vlan_info(br, p, cmd, vinfo_curr);
578}
579
407af329
VY		 580static int br_afspec(struct net_bridge *br,
581 struct net_bridge_port *p,
582 struct nlattr *af_spec,
583 int cmd)
584{
efa5356b
RP		 585 struct bridge_vlan_info *vinfo_curr = NULL;
586 struct bridge_vlan_info *vinfo_last = NULL;
bdced7ef 587 struct nlattr *attr;
efa5356b
RP		 588 struct vtunnel_info tinfo_last = {};
589 struct vtunnel_info tinfo_curr = {};
590 int err = 0, rem;
407af329 591
bdced7ef 592 nla_for_each_nested(attr, af_spec, rem) {
efa5356b
RP		 593 err = 0;
594 switch (nla_type(attr)) {
595 case IFLA_BRIDGE_VLAN_TUNNEL_INFO:
596 if (!(p->flags & BR_VLAN_TUNNEL))
bdced7ef 597 return -EINVAL;
efa5356b
RP		 598 err = br_parse_vlan_tunnel_info(attr, &tinfo_curr);
599 if (err)
600 return err;
601 err = br_process_vlan_tunnel_info(br, p, cmd,
602 &tinfo_curr,
603 &tinfo_last);
604 if (err)
605 return err;
606 break;
607 case IFLA_BRIDGE_VLAN_INFO:
608 if (nla_len(attr) != sizeof(struct bridge_vlan_info))
6623c60d 609 return -EINVAL;
efa5356b
RP		 610 vinfo_curr = nla_data(attr);
611 err = br_process_vlan_info(br, p, cmd, vinfo_curr,
612 &vinfo_last);
613 if (err)
614 return err;
615 break;
bdced7ef 616 }
407af329
VY		 617 }
618
619 return err;
620}
621
3ac636b8 622static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
25c71c75 623 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
624 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
625 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
626 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
a2e01a65 627 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
1007dd1a 628 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
6f705d8c 629 [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 },
9ba18891 630 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
867a5943 631 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
355b9f9d 632 [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 },
786c2077 633 [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },
5d6ae479 634 [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },
6db6f0ea 635 [IFLA_BRPORT_MCAST_TO_UCAST] = { .type = NLA_U8 },
25c71c75 636};
637
638/* Change the state of the port and notify spanning tree */
639static int br_set_port_state(struct net_bridge_port *p, u8 state)
640{
641 if (state > BR_STATE_BLOCKING)
642 return -EINVAL;
643
644 /* if kernel STP is running, don't allow changes */
645 if (p->br->stp_enabled == BR_KERNEL_STP)
646 return -EBUSY;
647
576eb625 648 /* if device is not up, change is not allowed
649 * if link is not present, only allowable state is disabled
650 */
25c71c75 651 if (!netif_running(p->dev) ||
576eb625 652 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
25c71c75 653 return -ENETDOWN;
654
775dd692 655 br_set_state(p, state);
25c71c75 656 br_port_state_selection(p->br);
657 return 0;
658}
659
660/* Set/clear or port flags based on attribute */
661static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
662 int attrtype, unsigned long mask)
663{
664 if (tb[attrtype]) {
665 u8 flag = nla_get_u8(tb[attrtype]);
666 if (flag)
667 p->flags |= mask;
668 else
669 p->flags &= ~mask;
670 }
671}
672
673/* Process bridge protocol info on port */
674static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
675{
e028e4b8 676 unsigned long old_flags = p->flags;
efa5356b
RP		 677 bool br_vlan_tunnel_old = false;
678 int err;
25c71c75 679
680 br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
a2e01a65 681 br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
c2d3babf 682 br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
3d84fa98 683 br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
9ba18891 684 br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
867a5943 685 br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
b6cb5ac8 686 br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);
6db6f0ea 687 br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST, BR_MULTICAST_TO_UNICAST);
99f906e9 688 br_set_port_flag(p, tb, IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD);
95850116 689 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
842a9ae0 690 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
25c71c75 691
efa5356b
RP		 692 br_vlan_tunnel_old = (p->flags & BR_VLAN_TUNNEL) ? true : false;
693 br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL);
694 if (br_vlan_tunnel_old && !(p->flags & BR_VLAN_TUNNEL))
695 nbp_vlan_tunnel_info_flush(p);
696
25c71c75 697 if (tb[IFLA_BRPORT_COST]) {
698 err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
699 if (err)
700 return err;
701 }
702
703 if (tb[IFLA_BRPORT_PRIORITY]) {
704 err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
705 if (err)
706 return err;
707 }
708
709 if (tb[IFLA_BRPORT_STATE]) {
710 err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
711 if (err)
712 return err;
713 }
e028e4b8 714
9b0c6e4d
NA		 715 if (tb[IFLA_BRPORT_FLUSH])
716 br_fdb_delete_by_port(p->br, p, 0, 0);
717
5d6ae479
NA		 718#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
719 if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {
720 u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);
721
722 err = br_multicast_set_port_router(p, mcast_router);
723 if (err)
724 return err;
725 }
726#endif
e028e4b8 727 br_port_flags_change(p, old_flags ^ p->flags);
25c71c75 728 return 0;
729}
730
731/* Change state and parameters on port. */
add511b3 732int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
11dc1f36 733{
74685962 734 struct nlattr *protinfo;
407af329 735 struct nlattr *afspec;
11dc1f36 736 struct net_bridge_port *p;
2062cc20 737 struct nlattr *tb[IFLA_BRPORT_MAX + 1];
41c498b9 738 int err = 0;
11dc1f36 739
c60ee67f
H		 740 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO);
741 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329 742 if (!protinfo && !afspec)
25c71c75 743 return 0;
11dc1f36 744
ec1e5610 745 p = br_port_get_rtnl(dev);
407af329 746 /* We want to accept dev as bridge itself if the AF_SPEC
8e3bff96 747 * is set to see if someone is setting vlan info on the bridge
407af329 748 */
7b99a993 749 if (!p && !afspec)
b5ed54e9 750 return -EINVAL;
11dc1f36 751
407af329
VY		 752 if (p && protinfo) {
753 if (protinfo->nla_type & NLA_F_NESTED) {
fceb6435
JB		 754 err = nla_parse_nested(tb, IFLA_BRPORT_MAX, protinfo,
755 br_port_policy, NULL);
407af329
VY		 756 if (err)
757 return err;
758
759 spin_lock_bh(&p->br->lock);
760 err = br_setport(p, tb);
761 spin_unlock_bh(&p->br->lock);
762 } else {
8e3bff96 763 /* Binary compatibility with old RSTP */
407af329
VY		 764 if (nla_len(protinfo) < sizeof(u8))
765 return -EINVAL;
766
767 spin_lock_bh(&p->br->lock);
768 err = br_set_port_state(p, nla_get_u8(protinfo));
769 spin_unlock_bh(&p->br->lock);
770 }
25c71c75 771 if (err)
407af329
VY		 772 goto out;
773 }
11dc1f36 774
407af329
VY		 775 if (afspec) {
776 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
777 afspec, RTM_SETLINK);
25c71c75 778 }
b03b6dd5 779
25c71c75 780 if (err == 0)
781 br_ifinfo_notify(RTM_NEWLINK, p);
407af329 782out:
25c71c75 783 return err;
11dc1f36
SH		 784}
785
407af329 786/* Delete port information */
add511b3 787int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
407af329 788{
407af329
VY		 789 struct nlattr *afspec;
790 struct net_bridge_port *p;
8508025c 791 int err = 0;
407af329 792
c60ee67f 793 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329
VY		 794 if (!afspec)
795 return 0;
796
797 p = br_port_get_rtnl(dev);
798 /* We want to accept dev as bridge itself as well */
799 if (!p && !(dev->priv_flags & IFF_EBRIDGE))
800 return -EINVAL;
801
802 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
803 afspec, RTM_DELLINK);
02dba438
RP		 804 if (err == 0)
805 /* Send RTM_NEWLINK because userspace
806 * expects RTM_NEWLINK for vlan dels
807 */
808 br_ifinfo_notify(RTM_NEWLINK, p);
407af329
VY		 809
810 return err;
811}
bb900b27 812static int br_validate(struct nlattr *tb[], struct nlattr *data[])
813{
814 if (tb[IFLA_ADDRESS]) {
815 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
816 return -EINVAL;
817 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
818 return -EADDRNOTAVAIL;
819 }
820
d2d427b3
TM		 821 if (!data)
822 return 0;
823
824#ifdef CONFIG_BRIDGE_VLAN_FILTERING
825 if (data[IFLA_BR_VLAN_PROTOCOL]) {
826 switch (nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])) {
827 case htons(ETH_P_8021Q):
828 case htons(ETH_P_8021AD):
829 break;
830 default:
831 return -EPROTONOSUPPORT;
832 }
833 }
834#endif
835
bb900b27 836 return 0;
837}
838
3ac636b8
JP		 839static int br_port_slave_changelink(struct net_device *brdev,
840 struct net_device *dev,
841 struct nlattr *tb[],
842 struct nlattr *data[])
843{
963ad948
NA		 844 struct net_bridge *br = netdev_priv(brdev);
845 int ret;
846
3ac636b8
JP		 847 if (!data)
848 return 0;
963ad948
NA		 849
850 spin_lock_bh(&br->lock);
851 ret = br_setport(br_port_get_rtnl(dev), data);
852 spin_unlock_bh(&br->lock);
853
854 return ret;
3ac636b8
JP		 855}
856
ced8283f
JP		 857static int br_port_fill_slave_info(struct sk_buff *skb,
858 const struct net_device *brdev,
859 const struct net_device *dev)
860{
861 return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
862}
863
864static size_t br_port_get_slave_size(const struct net_device *brdev,
865 const struct net_device *dev)
866{
867 return br_port_info_size();
868}
869
13323516
JP		 870static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
871 [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
872 [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
873 [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
af615762
JT		 874 [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
875 [IFLA_BR_STP_STATE] = { .type = NLA_U32 },
876 [IFLA_BR_PRIORITY] = { .type = NLA_U16 },
a7854037 877 [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
d2d427b3 878 [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
7910228b 879 [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
111189ab
NA		 880 [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
881 .len = ETH_ALEN },
a9a6bc70 882 [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
89126327 883 [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
295141d9 884 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
ba062d7c 885 [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
431db3c0 886 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
858079fd 887 [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
79b859f5 888 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
b89e6bab 889 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
7e4df51e
NA		 890 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
891 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
892 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
893 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
894 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
895 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
93870cc0
NA		 896 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 },
897 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 },
898 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 },
0f963b75 899 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 },
6dada9b1 900 [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 },
1080ab95 901 [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 },
5e923585 902 [IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 },
aa2ae3e7 903 [IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 },
13323516
JP		 904};
905
906static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
907 struct nlattr *data[])
908{
909 struct net_bridge *br = netdev_priv(brdev);
910 int err;
911
912 if (!data)
913 return 0;
914
915 if (data[IFLA_BR_FORWARD_DELAY]) {
916 err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
917 if (err)
918 return err;
919 }
920
921 if (data[IFLA_BR_HELLO_TIME]) {
922 err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
923 if (err)
924 return err;
925 }
926
927 if (data[IFLA_BR_MAX_AGE]) {
928 err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
929 if (err)
930 return err;
931 }
932
af615762 933 if (data[IFLA_BR_AGEING_TIME]) {
c62987bb
SF		 934 err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
935 if (err)
936 return err;
af615762
JT		 937 }
938
939 if (data[IFLA_BR_STP_STATE]) {
940 u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
941
942 br_stp_set_enabled(br, stp_enabled);
943 }
944
945 if (data[IFLA_BR_PRIORITY]) {
946 u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]);
947
948 br_stp_set_bridge_priority(br, priority);
949 }
950
a7854037
NA		 951 if (data[IFLA_BR_VLAN_FILTERING]) {
952 u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
953
954 err = __br_vlan_filter_toggle(br, vlan_filter);
955 if (err)
956 return err;
957 }
958
d2d427b3
TM		 959#ifdef CONFIG_BRIDGE_VLAN_FILTERING
960 if (data[IFLA_BR_VLAN_PROTOCOL]) {
961 __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]);
962
963 err = __br_vlan_set_proto(br, vlan_proto);
964 if (err)
965 return err;
966 }
0f963b75
NA		 967
968 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
969 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
970
971 err = __br_vlan_set_default_pvid(br, defpvid);
972 if (err)
973 return err;
974 }
6dada9b1
NA		 975
976 if (data[IFLA_BR_VLAN_STATS_ENABLED]) {
977 __u8 vlan_stats = nla_get_u8(data[IFLA_BR_VLAN_STATS_ENABLED]);
978
979 err = br_vlan_set_stats(br, vlan_stats);
980 if (err)
981 return err;
982 }
d2d427b3
TM		 983#endif
984
7910228b
NA		 985 if (data[IFLA_BR_GROUP_FWD_MASK]) {
986 u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);
987
988 if (fwd_mask & BR_GROUPFWD_RESTRICTED)
989 return -EINVAL;
990 br->group_fwd_mask = fwd_mask;
991 }
992
111189ab
NA		 993 if (data[IFLA_BR_GROUP_ADDR]) {
994 u8 new_addr[ETH_ALEN];
995
996 if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
997 return -EINVAL;
998 memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
999 if (!is_link_local_ether_addr(new_addr))
1000 return -EINVAL;
1001 if (new_addr[5] == 1 || /* 802.3x Pause address */
1002 new_addr[5] == 2 || /* 802.3ad Slow protocols */
1003 new_addr[5] == 3) /* 802.1X PAE address */
1004 return -EINVAL;
1005 spin_lock_bh(&br->lock);
1006 memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
1007 spin_unlock_bh(&br->lock);
1008 br->group_addr_set = true;
1009 br_recalculate_fwd_mask(br);
1010 }
1011
150217c6
NA		 1012 if (data[IFLA_BR_FDB_FLUSH])
1013 br_fdb_flush(br);
1014
a9a6bc70
NA		 1015#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1016 if (data[IFLA_BR_MCAST_ROUTER]) {
1017 u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]);
1018
1019 err = br_multicast_set_router(br, multicast_router);
1020 if (err)
1021 return err;
1022 }
89126327
NA		 1023
1024 if (data[IFLA_BR_MCAST_SNOOPING]) {
1025 u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
1026
1027 err = br_multicast_toggle(br, mcast_snooping);
1028 if (err)
1029 return err;
1030 }
295141d9
NA		 1031
1032 if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {
1033 u8 val;
1034
1035 val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
1036 br->multicast_query_use_ifaddr = !!val;
1037 }
ba062d7c
NA		 1038
1039 if (data[IFLA_BR_MCAST_QUERIER]) {
1040 u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
1041
1042 err = br_multicast_set_querier(br, mcast_querier);
1043 if (err)
1044 return err;
1045 }
431db3c0
NA		 1046
1047 if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) {
1048 u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]);
1049
1050 br->hash_elasticity = val;
1051 }
858079fd
NA		 1052
1053 if (data[IFLA_BR_MCAST_HASH_MAX]) {
1054 u32 hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]);
1055
1056 err = br_multicast_set_hash_max(br, hash_max);
1057 if (err)
1058 return err;
1059 }
79b859f5
NA		 1060
1061 if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
1062 u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
1063
1064 br->multicast_last_member_count = val;
1065 }
b89e6bab
NA		 1066
1067 if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
1068 u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
1069
1070 br->multicast_startup_query_count = val;
1071 }
7e4df51e
NA		 1072
1073 if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
1074 u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
1075
1076 br->multicast_last_member_interval = clock_t_to_jiffies(val);
1077 }
1078
1079 if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
1080 u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
1081
1082 br->multicast_membership_interval = clock_t_to_jiffies(val);
1083 }
1084
1085 if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
1086 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
1087
1088 br->multicast_querier_interval = clock_t_to_jiffies(val);
1089 }
1090
1091 if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
1092 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
1093
1094 br->multicast_query_interval = clock_t_to_jiffies(val);
1095 }
1096
1097 if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
1098 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
1099
1100 br->multicast_query_response_interval = clock_t_to_jiffies(val);
1101 }
1102
1103 if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
1104 u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
1105
1106 br->multicast_startup_query_interval = clock_t_to_jiffies(val);
1107 }
1080ab95
NA		 1108
1109 if (data[IFLA_BR_MCAST_STATS_ENABLED]) {
1110 __u8 mcast_stats;
1111
1112 mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]);
1113 br->multicast_stats_enabled = !!mcast_stats;
1114 }
5e923585
NA		 1115
1116 if (data[IFLA_BR_MCAST_IGMP_VERSION]) {
1117 __u8 igmp_version;
1118
1119 igmp_version = nla_get_u8(data[IFLA_BR_MCAST_IGMP_VERSION]);
1120 err = br_multicast_set_igmp_version(br, igmp_version);
1121 if (err)
1122 return err;
1123 }
aa2ae3e7
NA		 1124
1125#if IS_ENABLED(CONFIG_IPV6)
1126 if (data[IFLA_BR_MCAST_MLD_VERSION]) {
1127 __u8 mld_version;
1128
1129 mld_version = nla_get_u8(data[IFLA_BR_MCAST_MLD_VERSION]);
1130 err = br_multicast_set_mld_version(br, mld_version);
1131 if (err)
1132 return err;
1133 }
1134#endif
a9a6bc70 1135#endif
93870cc0
NA		 1136#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1137 if (data[IFLA_BR_NF_CALL_IPTABLES]) {
1138 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]);
1139
1140 br->nf_call_iptables = val ? true : false;
1141 }
1142
1143 if (data[IFLA_BR_NF_CALL_IP6TABLES]) {
1144 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]);
1145
1146 br->nf_call_ip6tables = val ? true : false;
1147 }
1148
1149 if (data[IFLA_BR_NF_CALL_ARPTABLES]) {
1150 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]);
1151
1152 br->nf_call_arptables = val ? true : false;
1153 }
1154#endif
a9a6bc70 1155
13323516
JP		 1156 return 0;
1157}
1158
b6677449
IV		 1159static int br_dev_newlink(struct net *src_net, struct net_device *dev,
1160 struct nlattr *tb[], struct nlattr *data[])
1161{
1162 struct net_bridge *br = netdev_priv(dev);
1163 int err;
1164
1165 if (tb[IFLA_ADDRESS]) {
1166 spin_lock_bh(&br->lock);
1167 br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
1168 spin_unlock_bh(&br->lock);
1169 }
1170
5b8d5429 1171 err = register_netdevice(dev);
b6677449
IV		 1172 if (err)
1173 return err;
1174
5b8d5429
IS		 1175 err = br_changelink(dev, tb, data);
1176 if (err)
1177 unregister_netdevice(dev);
1178 return err;
b6677449
IV		 1179}
1180
e5c3ea5c
JP		 1181static size_t br_get_size(const struct net_device *brdev)
1182{
1183 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1184 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1185 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
af615762
JT		 1186 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1187 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1188 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
a7854037 1189 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
d2d427b3
TM		 1190#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1191 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
0f963b75 1192 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
6dada9b1 1193 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */
d2d427b3 1194#endif
7910228b 1195 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
5127c81f 1196 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
7599a220 1197 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
8762ba68 1198 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
684dd248 1199 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
b89e6bab
NA		 1200 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1201 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
12a0faa3
ND		 1202 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1203 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1204 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1205 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
111189ab 1206 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
a9a6bc70
NA		 1207#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1208 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
89126327 1209 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
295141d9 1210 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
ba062d7c 1211 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
1080ab95 1212 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */
b89e6bab
NA		 1213 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1214 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1215 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1216 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
12a0faa3
ND		 1217 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1218 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1219 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1220 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1221 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1222 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
5e923585 1223 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_IGMP_VERSION */
aa2ae3e7 1224 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_MLD_VERSION */
93870cc0
NA		 1225#endif
1226#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1227 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1228 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1229 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
a9a6bc70 1230#endif
e5c3ea5c
JP		 1231 0;
1232}
1233
1234static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1235{
1236 struct net_bridge *br = netdev_priv(brdev);
1237 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1238 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1239 u32 age_time = jiffies_to_clock_t(br->max_age);
af615762
JT		 1240 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1241 u32 stp_enabled = br->stp_enabled;
1242 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
a7854037 1243 u8 vlan_enabled = br_vlan_enabled(br);
4917a154
NA		 1244 u64 clockval;
1245
1246 clockval = br_timer_value(&br->hello_timer);
12a0faa3 1247 if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1248 return -EMSGSIZE;
1249 clockval = br_timer_value(&br->tcn_timer);
12a0faa3 1250 if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1251 return -EMSGSIZE;
1252 clockval = br_timer_value(&br->topology_change_timer);
12a0faa3
ND		 1253 if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval,
1254 IFLA_BR_PAD))
4917a154 1255 return -EMSGSIZE;
f7cdee8a 1256 clockval = br_timer_value(&br->gc_work.timer);
12a0faa3 1257 if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD))
4917a154 1258 return -EMSGSIZE;
e5c3ea5c
JP		 1259
1260 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1261 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
af615762
JT		 1262 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1263 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1264 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
a7854037 1265 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
7910228b 1266 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
4917a154
NA		 1267 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1268 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1269 &br->bridge_id) ||
1270 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1271 &br->designated_root) ||
684dd248 1272 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
ed416309
NA		 1273 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1274 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1275 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
d76bd14e 1276 br->topology_change_detected) ||
111189ab 1277 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr))
e5c3ea5c
JP		 1278 return -EMSGSIZE;
1279
d2d427b3 1280#ifdef CONFIG_BRIDGE_VLAN_FILTERING
0f963b75 1281 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
6dada9b1
NA		 1282 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) ||
1283 nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED, br->vlan_stats_enabled))
d2d427b3
TM		 1284 return -EMSGSIZE;
1285#endif
a9a6bc70 1286#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
89126327 1287 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
295141d9
NA		 1288 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||
1289 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
ba062d7c 1290 br->multicast_query_use_ifaddr) ||
431db3c0 1291 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||
1080ab95
NA		 1292 nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED,
1293 br->multicast_stats_enabled) ||
431db3c0 1294 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,
858079fd 1295 br->hash_elasticity) ||
79b859f5
NA		 1296 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1297 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
b89e6bab
NA		 1298 br->multicast_last_member_count) ||
1299 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
5e923585
NA		 1300 br->multicast_startup_query_count) ||
1301 nla_put_u8(skb, IFLA_BR_MCAST_IGMP_VERSION,
1302 br->multicast_igmp_version))
a9a6bc70 1303 return -EMSGSIZE;
aa2ae3e7
NA		 1304#if IS_ENABLED(CONFIG_IPV6)
1305 if (nla_put_u8(skb, IFLA_BR_MCAST_MLD_VERSION,
1306 br->multicast_mld_version))
1307 return -EMSGSIZE;
1308#endif
7e4df51e 1309 clockval = jiffies_to_clock_t(br->multicast_last_member_interval);
12a0faa3
ND		 1310 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval,
1311 IFLA_BR_PAD))
7e4df51e
NA		 1312 return -EMSGSIZE;
1313 clockval = jiffies_to_clock_t(br->multicast_membership_interval);
12a0faa3
ND		 1314 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval,
1315 IFLA_BR_PAD))
7e4df51e
NA		 1316 return -EMSGSIZE;
1317 clockval = jiffies_to_clock_t(br->multicast_querier_interval);
12a0faa3
ND		 1318 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval,
1319 IFLA_BR_PAD))
7e4df51e
NA		 1320 return -EMSGSIZE;
1321 clockval = jiffies_to_clock_t(br->multicast_query_interval);
12a0faa3
ND		 1322 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval,
1323 IFLA_BR_PAD))
7e4df51e
NA		 1324 return -EMSGSIZE;
1325 clockval = jiffies_to_clock_t(br->multicast_query_response_interval);
12a0faa3
ND		 1326 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval,
1327 IFLA_BR_PAD))
7e4df51e
NA		 1328 return -EMSGSIZE;
1329 clockval = jiffies_to_clock_t(br->multicast_startup_query_interval);
12a0faa3
ND		 1330 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval,
1331 IFLA_BR_PAD))
7e4df51e 1332 return -EMSGSIZE;
a9a6bc70 1333#endif
93870cc0
NA		 1334#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1335 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
1336 br->nf_call_iptables ? 1 : 0) ||
1337 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
1338 br->nf_call_ip6tables ? 1 : 0) ||
1339 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
1340 br->nf_call_arptables ? 1 : 0))
1341 return -EMSGSIZE;
1342#endif
a9a6bc70 1343
e5c3ea5c
JP		 1344 return 0;
1345}
1346
d5ff8c41 1347static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
a60c0903 1348{
d5ff8c41 1349 struct net_bridge_port *p = NULL;
a60c0903
NA		 1350 struct net_bridge_vlan_group *vg;
1351 struct net_bridge_vlan *v;
d5ff8c41 1352 struct net_bridge *br;
a60c0903
NA		 1353 int numvls = 0;
1354
d5ff8c41
NA		 1355 switch (attr) {
1356 case IFLA_STATS_LINK_XSTATS:
1357 br = netdev_priv(dev);
1358 vg = br_vlan_group(br);
1359 break;
1360 case IFLA_STATS_LINK_XSTATS_SLAVE:
1361 p = br_port_get_rtnl(dev);
1362 if (!p)
1363 return 0;
1364 br = p->br;
1365 vg = nbp_vlan_group(p);
1366 break;
1367 default:
1368 return 0;
1369 }
1370
1080ab95
NA		 1371 if (vg) {
1372 /* we need to count all, even placeholder entries */
1373 list_for_each_entry(v, &vg->vlan_list, vlist)
1374 numvls++;
1375 }
a60c0903 1376
a60c0903 1377 return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
1080ab95 1378 nla_total_size(sizeof(struct br_mcast_stats)) +
a60c0903
NA		 1379 nla_total_size(0);
1380}
1381
d5ff8c41
NA		 1382static int br_fill_linkxstats(struct sk_buff *skb,
1383 const struct net_device *dev,
1384 int *prividx, int attr)
80e73cc5 1385{
d5ff8c41
NA		 1386 struct nlattr *nla __maybe_unused;
1387 struct net_bridge_port *p = NULL;
1388 struct net_bridge_vlan_group *vg;
1389 struct net_bridge_vlan *v;
1390 struct net_bridge *br;
1391 struct nlattr *nest;
1392 int vl_idx = 0;
80e73cc5
NA		 1393
1394 switch (attr) {
1395 case IFLA_STATS_LINK_XSTATS:
d5ff8c41
NA		 1396 br = netdev_priv(dev);
1397 vg = br_vlan_group(br);
80e73cc5
NA		 1398 break;
1399 case IFLA_STATS_LINK_XSTATS_SLAVE:
d5ff8c41
NA		 1400 p = br_port_get_rtnl(dev);
1401 if (!p)
1402 return 0;
1403 br = p->br;
1404 vg = nbp_vlan_group(p);
80e73cc5 1405 break;
d5ff8c41
NA		 1406 default:
1407 return -EINVAL;
80e73cc5
NA		 1408 }
1409
a60c0903
NA		 1410 nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE);
1411 if (!nest)
1412 return -EMSGSIZE;
a60c0903 1413
1080ab95 1414 if (vg) {
72f4af4e
NA		 1415 u16 pvid;
1416
1417 pvid = br_get_pvid(vg);
1080ab95
NA		 1418 list_for_each_entry(v, &vg->vlan_list, vlist) {
1419 struct bridge_vlan_xstats vxi;
1420 struct br_vlan_stats stats;
1421
1422 if (++vl_idx < *prividx)
1423 continue;
1424 memset(&vxi, 0, sizeof(vxi));
1425 vxi.vid = v->vid;
61ba1a2d 1426 vxi.flags = v->flags;
72f4af4e
NA		 1427 if (v->vid == pvid)
1428 vxi.flags |= BRIDGE_VLAN_INFO_PVID;
1080ab95
NA		 1429 br_vlan_get_stats(v, &stats);
1430 vxi.rx_bytes = stats.rx_bytes;
1431 vxi.rx_packets = stats.rx_packets;
1432 vxi.tx_bytes = stats.tx_bytes;
1433 vxi.tx_packets = stats.tx_packets;
1434
1435 if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi))
1436 goto nla_put_failure;
1437 }
1438 }
1439
1440#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1441 if (++vl_idx >= *prividx) {
1442 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST,
1443 sizeof(struct br_mcast_stats),
1444 BRIDGE_XSTATS_PAD);
1445 if (!nla)
a60c0903 1446 goto nla_put_failure;
d5ff8c41 1447 br_multicast_get_stats(br, p, nla_data(nla));
a60c0903 1448 }
1080ab95 1449#endif
a60c0903
NA		 1450 nla_nest_end(skb, nest);
1451 *prividx = 0;
1080ab95 1452
a60c0903
NA		 1453 return 0;
1454
1455nla_put_failure:
1456 nla_nest_end(skb, nest);
1457 *prividx = vl_idx;
1458
1459 return -EMSGSIZE;
1460}
fed0a159 1461
207895fd 1462static struct rtnl_af_ops br_af_ops __read_mostly = {
6cbdceeb 1463 .family = AF_BRIDGE,
b1974ed0 1464 .get_link_af_size = br_get_link_af_size_filtered,
6cbdceeb
VY		 1465};
1466
149ddd83 1467struct rtnl_link_ops br_link_ops __read_mostly = {
ced8283f
JP		 1468 .kind = "bridge",
1469 .priv_size = sizeof(struct net_bridge),
1470 .setup = br_dev_setup,
eb4cb851 1471 .maxtype = IFLA_BR_MAX,
13323516 1472 .policy = br_policy,
ced8283f
JP		 1473 .validate = br_validate,
1474 .newlink = br_dev_newlink,
13323516 1475 .changelink = br_changelink,
ced8283f 1476 .dellink = br_dev_delete,
e5c3ea5c
JP		 1477 .get_size = br_get_size,
1478 .fill_info = br_fill_info,
a60c0903
NA		 1479 .fill_linkxstats = br_fill_linkxstats,
1480 .get_linkxstats_size = br_get_linkxstats_size,
3ac636b8
JP		 1481
1482 .slave_maxtype = IFLA_BRPORT_MAX,
1483 .slave_policy = br_port_policy,
1484 .slave_changelink = br_port_slave_changelink,
ced8283f
JP		 1485 .get_slave_size = br_port_get_slave_size,
1486 .fill_slave_info = br_port_fill_slave_info,
bb900b27 1487};
11dc1f36 1488
32fe21c0 1489int __init br_netlink_init(void)
11dc1f36 1490{
3ec8e9f0
VY		 1491 int err;
1492
1493 br_mdb_init();
3678a9d8 1494 rtnl_af_register(&br_af_ops);
3ec8e9f0 1495
6cbdceeb
VY		 1496 err = rtnl_link_register(&br_link_ops);
1497 if (err)
1498 goto out_af;
1499
3ec8e9f0 1500 return 0;
6cbdceeb
VY		 1501
1502out_af:
1503 rtnl_af_unregister(&br_af_ops);
3ec8e9f0
VY		 1504 br_mdb_uninit();
1505 return err;
11dc1f36
SH		 1506}
1507
34666d46 1508void br_netlink_fini(void)
11dc1f36 1509{
3ec8e9f0 1510 br_mdb_uninit();
6cbdceeb 1511 rtnl_af_unregister(&br_af_ops);
bb900b27 1512 rtnl_link_unregister(&br_link_ops);
11dc1f36 1513}
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