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bridge: modify bridge and port to have often accessed fields in one cache line
[linux-2.6-block.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)) ||
842a9ae0
JM		 192 nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) ||
193 nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI,
4ebc7660
NA		 194 !!(p->flags & BR_PROXYARP_WIFI)) ||
195 nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
80df9a26
NA		 196 &p->designated_root) ||
197 nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id),
96f94e7f
NA		 198 &p->designated_bridge) ||
199 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) ||
42d452c4
NA		 200 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost) ||
201 nla_put_u16(skb, IFLA_BRPORT_ID, p->port_id) ||
e08e838a
NA		 202 nla_put_u16(skb, IFLA_BRPORT_NO, p->port_no) ||
203 nla_put_u8(skb, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
204 p->topology_change_ack) ||
efa5356b
RP		 205 nla_put_u8(skb, IFLA_BRPORT_CONFIG_PENDING, p->config_pending) ||
206 nla_put_u8(skb, IFLA_BRPORT_VLAN_TUNNEL, !!(p->flags &
207 BR_VLAN_TUNNEL)))
25c71c75 208 return -EMSGSIZE;
209
61c0a9a8 210 timerval = br_timer_value(&p->message_age_timer);
12a0faa3
ND		 211 if (nla_put_u64_64bit(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval,
212 IFLA_BRPORT_PAD))
61c0a9a8
NA		 213 return -EMSGSIZE;
214 timerval = br_timer_value(&p->forward_delay_timer);
12a0faa3
ND		 215 if (nla_put_u64_64bit(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval,
216 IFLA_BRPORT_PAD))
61c0a9a8
NA		 217 return -EMSGSIZE;
218 timerval = br_timer_value(&p->hold_timer);
12a0faa3
ND		 219 if (nla_put_u64_64bit(skb, IFLA_BRPORT_HOLD_TIMER, timerval,
220 IFLA_BRPORT_PAD))
61c0a9a8
NA		 221 return -EMSGSIZE;
222
5d6ae479
NA		 223#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
224 if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
225 p->multicast_router))
226 return -EMSGSIZE;
227#endif
228
25c71c75 229 return 0;
339bf98f
TG		 230}
231
36cd0ffb
RP		 232static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start,
233 u16 vid_end, u16 flags)
234{
235 struct bridge_vlan_info vinfo;
236
237 if ((vid_end - vid_start) > 0) {
238 /* add range to skb */
239 vinfo.vid = vid_start;
240 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN;
241 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
242 sizeof(vinfo), &vinfo))
243 goto nla_put_failure;
244
36cd0ffb
RP		 245 vinfo.vid = vid_end;
246 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END;
247 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
248 sizeof(vinfo), &vinfo))
249 goto nla_put_failure;
250 } else {
251 vinfo.vid = vid_start;
252 vinfo.flags = flags;
253 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
254 sizeof(vinfo), &vinfo))
255 goto nla_put_failure;
256 }
257
258 return 0;
259
260nla_put_failure:
261 return -EMSGSIZE;
262}
263
264static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb,
77751ee8 265 struct net_bridge_vlan_group *vg)
36cd0ffb 266{
2594e906
NA		 267 struct net_bridge_vlan *v;
268 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 269 u16 flags, pvid;
36cd0ffb
RP		 270 int err = 0;
271
272 /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan
273 * and mark vlan info with begin and end flags
274 * if vlaninfo represents a range
275 */
77751ee8 276 pvid = br_get_pvid(vg);
e9c953ef 277 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
36cd0ffb 278 flags = 0;
2594e906
NA		 279 if (!br_vlan_should_use(v))
280 continue;
281 if (v->vid == pvid)
36cd0ffb
RP		 282 flags |= BRIDGE_VLAN_INFO_PVID;
283
2594e906 284 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 285 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
286
287 if (vid_range_start == 0) {
288 goto initvars;
2594e906 289 } else if ((v->vid - vid_range_end) == 1 &&
36cd0ffb 290 flags == vid_range_flags) {
2594e906 291 vid_range_end = v->vid;
36cd0ffb
RP		 292 continue;
293 } else {
294 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
295 vid_range_end,
296 vid_range_flags);
297 if (err)
298 return err;
299 }
300
301initvars:
2594e906
NA		 302 vid_range_start = v->vid;
303 vid_range_end = v->vid;
36cd0ffb
RP		 304 vid_range_flags = flags;
305 }
306
0fe6de49
RP		 307 if (vid_range_start != 0) {
308 /* Call it once more to send any left over vlans */
309 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
310 vid_range_end,
311 vid_range_flags);
312 if (err)
313 return err;
314 }
36cd0ffb
RP		 315
316 return 0;
317}
318
319static int br_fill_ifvlaninfo(struct sk_buff *skb,
77751ee8 320 struct net_bridge_vlan_group *vg)
36cd0ffb
RP		 321{
322 struct bridge_vlan_info vinfo;
2594e906 323 struct net_bridge_vlan *v;
77751ee8 324 u16 pvid;
36cd0ffb 325
77751ee8 326 pvid = br_get_pvid(vg);
e9c953ef 327 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
2594e906
NA		 328 if (!br_vlan_should_use(v))
329 continue;
330
331 vinfo.vid = v->vid;
36cd0ffb 332 vinfo.flags = 0;
2594e906 333 if (v->vid == pvid)
36cd0ffb
RP		 334 vinfo.flags |= BRIDGE_VLAN_INFO_PVID;
335
2594e906 336 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 337 vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
338
339 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
340 sizeof(vinfo), &vinfo))
341 goto nla_put_failure;
342 }
343
344 return 0;
345
346nla_put_failure:
347 return -EMSGSIZE;
348}
349
11dc1f36
SH		 350/*
351 * Create one netlink message for one interface
352 * Contains port and master info as well as carrier and bridge state.
353 */
6cbdceeb 354static int br_fill_ifinfo(struct sk_buff *skb,
2594e906 355 struct net_bridge_port *port,
6cbdceeb
VY		 356 u32 pid, u32 seq, int event, unsigned int flags,
357 u32 filter_mask, const struct net_device *dev)
11dc1f36 358{
2594e906 359 struct net_bridge *br;
74685962 360 struct ifinfomsg *hdr;
11dc1f36 361 struct nlmsghdr *nlh;
11dc1f36 362 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
11dc1f36 363
6cbdceeb
VY		 364 if (port)
365 br = port->br;
366 else
367 br = netdev_priv(dev);
368
28a16c97 369 br_debug(br, "br_fill_info event %d port %s master %s\n",
370 event, dev->name, br->dev->name);
11dc1f36 371
74685962
TG		 372 nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags);
373 if (nlh == NULL)
26932566 374 return -EMSGSIZE;
11dc1f36 375
74685962
TG		 376 hdr = nlmsg_data(nlh);
377 hdr->ifi_family = AF_BRIDGE;
378 hdr->__ifi_pad = 0;
379 hdr->ifi_type = dev->type;
380 hdr->ifi_index = dev->ifindex;
381 hdr->ifi_flags = dev_get_flags(dev);
382 hdr->ifi_change = 0;
11dc1f36 383
2eb812e6
DM		 384 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
385 nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) ||
386 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
387 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
388 (dev->addr_len &&
389 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
a54acb3a
ND		 390 (dev->ifindex != dev_get_iflink(dev) &&
391 nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
2eb812e6 392 goto nla_put_failure;
25c71c75 393
6cbdceeb 394 if (event == RTM_NEWLINK && port) {
25c71c75 395 struct nlattr *nest
396 = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
397
398 if (nest == NULL || br_port_fill_attrs(skb, port) < 0)
399 goto nla_put_failure;
400 nla_nest_end(skb, nest);
401 }
402
6cbdceeb 403 /* Check if the VID information is requested */
36cd0ffb
RP		 404 if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
405 (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
2594e906 406 struct net_bridge_vlan_group *vg;
36cd0ffb
RP		 407 struct nlattr *af;
408 int err;
6cbdceeb 409
e9c953ef
NA		 410 /* RCU needed because of the VLAN locking rules (rcu || rtnl) */
411 rcu_read_lock();
77751ee8 412 if (port)
e9c953ef 413 vg = nbp_vlan_group_rcu(port);
77751ee8 414 else
e9c953ef 415 vg = br_vlan_group_rcu(br);
6cbdceeb 416
e9c953ef
NA		 417 if (!vg || !vg->num_vlans) {
418 rcu_read_unlock();
6cbdceeb 419 goto done;
e9c953ef 420 }
6cbdceeb 421 af = nla_nest_start(skb, IFLA_AF_SPEC);
e9c953ef
NA		 422 if (!af) {
423 rcu_read_unlock();
6cbdceeb 424 goto nla_put_failure;
e9c953ef 425 }
36cd0ffb 426 if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
77751ee8 427 err = br_fill_ifvlaninfo_compressed(skb, vg);
36cd0ffb 428 else
77751ee8 429 err = br_fill_ifvlaninfo(skb, vg);
efa5356b
RP		 430
431 if (port && (port->flags & BR_VLAN_TUNNEL))
432 err = br_fill_vlan_tunnel_info(skb, vg);
e9c953ef 433 rcu_read_unlock();
36cd0ffb
RP		 434 if (err)
435 goto nla_put_failure;
6cbdceeb
VY		 436 nla_nest_end(skb, af);
437 }
438
439done:
053c095a
JB		 440 nlmsg_end(skb, nlh);
441 return 0;
11dc1f36 442
74685962 443nla_put_failure:
26932566
PM		 444 nlmsg_cancel(skb, nlh);
445 return -EMSGSIZE;
11dc1f36
SH		 446}
447
448/*
449 * Notify listeners of a change in port information
450 */
451void br_ifinfo_notify(int event, struct net_bridge_port *port)
452{
407af329 453 struct net *net;
11dc1f36 454 struct sk_buff *skb;
280a306c 455 int err = -ENOBUFS;
fed0a159 456 u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
11dc1f36 457
407af329
VY		 458 if (!port)
459 return;
460
461 net = dev_net(port->dev);
28a16c97 462 br_debug(port->br, "port %u(%s) event %d\n",
95c96174 463 (unsigned int)port->port_no, port->dev->name, event);
28a16c97 464
fed0a159 465 skb = nlmsg_new(br_nlmsg_size(port->dev, filter), GFP_ATOMIC);
280a306c
TG		 466 if (skb == NULL)
467 goto errout;
468
fed0a159 469 err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, port->dev);
26932566
PM		 470 if (err < 0) {
471 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
472 WARN_ON(err == -EMSGSIZE);
473 kfree_skb(skb);
474 goto errout;
475 }
1ce85fe4
PNA		 476 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
477 return;
280a306c 478errout:
87e823b3 479 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
11dc1f36
SH		 480}
481
407af329 482
11dc1f36
SH		 483/*
484 * Dump information about all ports, in response to GETLINK
485 */
e5a55a89 486int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
46c264da 487 struct net_device *dev, u32 filter_mask, int nlflags)
11dc1f36 488{
1fb1754a 489 struct net_bridge_port *port = br_port_get_rtnl(dev);
e5a55a89 490
36cd0ffb
RP		 491 if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
492 !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
1b846f92 493 return 0;
11dc1f36 494
46c264da 495 return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
1b846f92 496 filter_mask, dev);
11dc1f36
SH		 497}
498
bdced7ef
RP		 499static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
500 int cmd, struct bridge_vlan_info *vinfo)
501{
502 int err = 0;
503
504 switch (cmd) {
505 case RTM_SETLINK:
506 if (p) {
2594e906
NA		 507 /* if the MASTER flag is set this will act on the global
508 * per-VLAN entry as well
509 */
bdced7ef
RP		 510 err = nbp_vlan_add(p, vinfo->vid, vinfo->flags);
511 if (err)
512 break;
bdced7ef 513 } else {
2594e906 514 vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY;
bdced7ef
RP		 515 err = br_vlan_add(br, vinfo->vid, vinfo->flags);
516 }
517 break;
518
519 case RTM_DELLINK:
520 if (p) {
521 nbp_vlan_delete(p, vinfo->vid);
522 if (vinfo->flags & BRIDGE_VLAN_INFO_MASTER)
523 br_vlan_delete(p->br, vinfo->vid);
524 } else {
525 br_vlan_delete(br, vinfo->vid);
526 }
527 break;
528 }
529
530 return err;
531}
407af329 532
efa5356b
RP		 533static int br_process_vlan_info(struct net_bridge *br,
534 struct net_bridge_port *p, int cmd,
535 struct bridge_vlan_info *vinfo_curr,
536 struct bridge_vlan_info **vinfo_last)
537{
538 if (!vinfo_curr->vid || vinfo_curr->vid >= VLAN_VID_MASK)
539 return -EINVAL;
540
541 if (vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
542 /* check if we are already processing a range */
543 if (*vinfo_last)
544 return -EINVAL;
545 *vinfo_last = vinfo_curr;
546 /* don't allow range of pvids */
547 if ((*vinfo_last)->flags & BRIDGE_VLAN_INFO_PVID)
548 return -EINVAL;
549 return 0;
550 }
551
552 if (*vinfo_last) {
553 struct bridge_vlan_info tmp_vinfo;
554 int v, err;
555
556 if (!(vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_END))
557 return -EINVAL;
558
559 if (vinfo_curr->vid <= (*vinfo_last)->vid)
560 return -EINVAL;
561
562 memcpy(&tmp_vinfo, *vinfo_last,
563 sizeof(struct bridge_vlan_info));
564 for (v = (*vinfo_last)->vid; v <= vinfo_curr->vid; v++) {
565 tmp_vinfo.vid = v;
566 err = br_vlan_info(br, p, cmd, &tmp_vinfo);
567 if (err)
568 break;
569 }
570 *vinfo_last = NULL;
571
572 return 0;
573 }
574
575 return br_vlan_info(br, p, cmd, vinfo_curr);
576}
577
407af329
VY		 578static int br_afspec(struct net_bridge *br,
579 struct net_bridge_port *p,
580 struct nlattr *af_spec,
581 int cmd)
582{
efa5356b
RP		 583 struct bridge_vlan_info *vinfo_curr = NULL;
584 struct bridge_vlan_info *vinfo_last = NULL;
bdced7ef 585 struct nlattr *attr;
efa5356b
RP		 586 struct vtunnel_info tinfo_last = {};
587 struct vtunnel_info tinfo_curr = {};
588 int err = 0, rem;
407af329 589
bdced7ef 590 nla_for_each_nested(attr, af_spec, rem) {
efa5356b
RP		 591 err = 0;
592 switch (nla_type(attr)) {
593 case IFLA_BRIDGE_VLAN_TUNNEL_INFO:
594 if (!(p->flags & BR_VLAN_TUNNEL))
bdced7ef 595 return -EINVAL;
efa5356b
RP		 596 err = br_parse_vlan_tunnel_info(attr, &tinfo_curr);
597 if (err)
598 return err;
599 err = br_process_vlan_tunnel_info(br, p, cmd,
600 &tinfo_curr,
601 &tinfo_last);
602 if (err)
603 return err;
604 break;
605 case IFLA_BRIDGE_VLAN_INFO:
606 if (nla_len(attr) != sizeof(struct bridge_vlan_info))
6623c60d 607 return -EINVAL;
efa5356b
RP		 608 vinfo_curr = nla_data(attr);
609 err = br_process_vlan_info(br, p, cmd, vinfo_curr,
610 &vinfo_last);
611 if (err)
612 return err;
613 break;
bdced7ef 614 }
407af329 615
bdced7ef 616 if (err)
efa5356b 617 return err;
407af329
VY		 618 }
619
620 return err;
621}
622
3ac636b8 623static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
25c71c75 624 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
625 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
626 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
627 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
a2e01a65 628 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
1007dd1a 629 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
6f705d8c 630 [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 },
9ba18891 631 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
867a5943 632 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
355b9f9d 633 [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 },
786c2077 634 [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },
5d6ae479 635 [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },
6db6f0ea 636 [IFLA_BRPORT_MCAST_TO_UCAST] = { .type = NLA_U8 },
25c71c75 637};
638
639/* Change the state of the port and notify spanning tree */
640static int br_set_port_state(struct net_bridge_port *p, u8 state)
641{
642 if (state > BR_STATE_BLOCKING)
643 return -EINVAL;
644
645 /* if kernel STP is running, don't allow changes */
646 if (p->br->stp_enabled == BR_KERNEL_STP)
647 return -EBUSY;
648
576eb625 649 /* if device is not up, change is not allowed
650 * if link is not present, only allowable state is disabled
651 */
25c71c75 652 if (!netif_running(p->dev) ||
576eb625 653 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
25c71c75 654 return -ENETDOWN;
655
775dd692 656 br_set_state(p, state);
25c71c75 657 br_port_state_selection(p->br);
658 return 0;
659}
660
661/* Set/clear or port flags based on attribute */
662static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
663 int attrtype, unsigned long mask)
664{
665 if (tb[attrtype]) {
666 u8 flag = nla_get_u8(tb[attrtype]);
667 if (flag)
668 p->flags |= mask;
669 else
670 p->flags &= ~mask;
671 }
672}
673
674/* Process bridge protocol info on port */
675static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
676{
e028e4b8 677 unsigned long old_flags = p->flags;
efa5356b
RP		 678 bool br_vlan_tunnel_old = false;
679 int err;
25c71c75 680
681 br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
a2e01a65 682 br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
c2d3babf 683 br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
3d84fa98 684 br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
9ba18891 685 br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
867a5943 686 br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
b6cb5ac8 687 br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);
6db6f0ea 688 br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST, BR_MULTICAST_TO_UNICAST);
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) {
754 err = nla_parse_nested(tb, IFLA_BRPORT_MAX,
3ac636b8 755 protinfo, br_port_policy);
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
1171 err = br_changelink(dev, tb, data);
1172 if (err)
1173 return err;
1174
1175 return register_netdevice(dev);
1176}
1177
e5c3ea5c
JP		 1178static size_t br_get_size(const struct net_device *brdev)
1179{
1180 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1181 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1182 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
af615762
JT		 1183 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1184 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1185 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
a7854037 1186 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
d2d427b3
TM		 1187#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1188 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
0f963b75 1189 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
6dada9b1 1190 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */
d2d427b3 1191#endif
7910228b 1192 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
5127c81f 1193 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
7599a220 1194 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
8762ba68 1195 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
684dd248 1196 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
b89e6bab
NA		 1197 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1198 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
12a0faa3
ND		 1199 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1200 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1201 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1202 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
111189ab 1203 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
a9a6bc70
NA		 1204#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1205 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
89126327 1206 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
295141d9 1207 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
ba062d7c 1208 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
1080ab95 1209 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */
b89e6bab
NA		 1210 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1211 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1212 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1213 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
12a0faa3
ND		 1214 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1215 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1216 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1217 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1218 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1219 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
5e923585 1220 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_IGMP_VERSION */
aa2ae3e7 1221 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_MLD_VERSION */
93870cc0
NA		 1222#endif
1223#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1224 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1225 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1226 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
a9a6bc70 1227#endif
e5c3ea5c
JP		 1228 0;
1229}
1230
1231static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1232{
1233 struct net_bridge *br = netdev_priv(brdev);
1234 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1235 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1236 u32 age_time = jiffies_to_clock_t(br->max_age);
af615762
JT		 1237 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1238 u32 stp_enabled = br->stp_enabled;
1239 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
a7854037 1240 u8 vlan_enabled = br_vlan_enabled(br);
4917a154
NA		 1241 u64 clockval;
1242
1243 clockval = br_timer_value(&br->hello_timer);
12a0faa3 1244 if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1245 return -EMSGSIZE;
1246 clockval = br_timer_value(&br->tcn_timer);
12a0faa3 1247 if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1248 return -EMSGSIZE;
1249 clockval = br_timer_value(&br->topology_change_timer);
12a0faa3
ND		 1250 if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval,
1251 IFLA_BR_PAD))
4917a154
NA		 1252 return -EMSGSIZE;
1253 clockval = br_timer_value(&br->gc_timer);
12a0faa3 1254 if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD))
4917a154 1255 return -EMSGSIZE;
e5c3ea5c
JP		 1256
1257 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1258 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
af615762
JT		 1259 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1260 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1261 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
a7854037 1262 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
7910228b 1263 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
4917a154
NA		 1264 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1265 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1266 &br->bridge_id) ||
1267 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1268 &br->designated_root) ||
684dd248 1269 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
ed416309
NA		 1270 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1271 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1272 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
d76bd14e 1273 br->topology_change_detected) ||
111189ab 1274 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr))
e5c3ea5c
JP		 1275 return -EMSGSIZE;
1276
d2d427b3 1277#ifdef CONFIG_BRIDGE_VLAN_FILTERING
0f963b75 1278 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
6dada9b1
NA		 1279 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) ||
1280 nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED, br->vlan_stats_enabled))
d2d427b3
TM		 1281 return -EMSGSIZE;
1282#endif
a9a6bc70 1283#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
89126327 1284 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
295141d9
NA		 1285 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||
1286 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
ba062d7c 1287 br->multicast_query_use_ifaddr) ||
431db3c0 1288 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||
1080ab95
NA		 1289 nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED,
1290 br->multicast_stats_enabled) ||
431db3c0 1291 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,
858079fd 1292 br->hash_elasticity) ||
79b859f5
NA		 1293 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1294 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
b89e6bab
NA		 1295 br->multicast_last_member_count) ||
1296 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
5e923585
NA		 1297 br->multicast_startup_query_count) ||
1298 nla_put_u8(skb, IFLA_BR_MCAST_IGMP_VERSION,
1299 br->multicast_igmp_version))
a9a6bc70 1300 return -EMSGSIZE;
aa2ae3e7
NA		 1301#if IS_ENABLED(CONFIG_IPV6)
1302 if (nla_put_u8(skb, IFLA_BR_MCAST_MLD_VERSION,
1303 br->multicast_mld_version))
1304 return -EMSGSIZE;
1305#endif
7e4df51e 1306 clockval = jiffies_to_clock_t(br->multicast_last_member_interval);
12a0faa3
ND		 1307 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval,
1308 IFLA_BR_PAD))
7e4df51e
NA		 1309 return -EMSGSIZE;
1310 clockval = jiffies_to_clock_t(br->multicast_membership_interval);
12a0faa3
ND		 1311 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval,
1312 IFLA_BR_PAD))
7e4df51e
NA		 1313 return -EMSGSIZE;
1314 clockval = jiffies_to_clock_t(br->multicast_querier_interval);
12a0faa3
ND		 1315 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval,
1316 IFLA_BR_PAD))
7e4df51e
NA		 1317 return -EMSGSIZE;
1318 clockval = jiffies_to_clock_t(br->multicast_query_interval);
12a0faa3
ND		 1319 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval,
1320 IFLA_BR_PAD))
7e4df51e
NA		 1321 return -EMSGSIZE;
1322 clockval = jiffies_to_clock_t(br->multicast_query_response_interval);
12a0faa3
ND		 1323 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval,
1324 IFLA_BR_PAD))
7e4df51e
NA		 1325 return -EMSGSIZE;
1326 clockval = jiffies_to_clock_t(br->multicast_startup_query_interval);
12a0faa3
ND		 1327 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval,
1328 IFLA_BR_PAD))
7e4df51e 1329 return -EMSGSIZE;
a9a6bc70 1330#endif
93870cc0
NA		 1331#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1332 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
1333 br->nf_call_iptables ? 1 : 0) ||
1334 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
1335 br->nf_call_ip6tables ? 1 : 0) ||
1336 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
1337 br->nf_call_arptables ? 1 : 0))
1338 return -EMSGSIZE;
1339#endif
a9a6bc70 1340
e5c3ea5c
JP		 1341 return 0;
1342}
1343
d5ff8c41 1344static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
a60c0903 1345{
d5ff8c41 1346 struct net_bridge_port *p = NULL;
a60c0903
NA		 1347 struct net_bridge_vlan_group *vg;
1348 struct net_bridge_vlan *v;
d5ff8c41 1349 struct net_bridge *br;
a60c0903
NA		 1350 int numvls = 0;
1351
d5ff8c41
NA		 1352 switch (attr) {
1353 case IFLA_STATS_LINK_XSTATS:
1354 br = netdev_priv(dev);
1355 vg = br_vlan_group(br);
1356 break;
1357 case IFLA_STATS_LINK_XSTATS_SLAVE:
1358 p = br_port_get_rtnl(dev);
1359 if (!p)
1360 return 0;
1361 br = p->br;
1362 vg = nbp_vlan_group(p);
1363 break;
1364 default:
1365 return 0;
1366 }
1367
1080ab95
NA		 1368 if (vg) {
1369 /* we need to count all, even placeholder entries */
1370 list_for_each_entry(v, &vg->vlan_list, vlist)
1371 numvls++;
1372 }
a60c0903 1373
a60c0903 1374 return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
1080ab95 1375 nla_total_size(sizeof(struct br_mcast_stats)) +
a60c0903
NA		 1376 nla_total_size(0);
1377}
1378
d5ff8c41
NA		 1379static int br_fill_linkxstats(struct sk_buff *skb,
1380 const struct net_device *dev,
1381 int *prividx, int attr)
80e73cc5 1382{
d5ff8c41
NA		 1383 struct nlattr *nla __maybe_unused;
1384 struct net_bridge_port *p = NULL;
1385 struct net_bridge_vlan_group *vg;
1386 struct net_bridge_vlan *v;
1387 struct net_bridge *br;
1388 struct nlattr *nest;
1389 int vl_idx = 0;
80e73cc5
NA		 1390
1391 switch (attr) {
1392 case IFLA_STATS_LINK_XSTATS:
d5ff8c41
NA		 1393 br = netdev_priv(dev);
1394 vg = br_vlan_group(br);
80e73cc5
NA		 1395 break;
1396 case IFLA_STATS_LINK_XSTATS_SLAVE:
d5ff8c41
NA		 1397 p = br_port_get_rtnl(dev);
1398 if (!p)
1399 return 0;
1400 br = p->br;
1401 vg = nbp_vlan_group(p);
80e73cc5 1402 break;
d5ff8c41
NA		 1403 default:
1404 return -EINVAL;
80e73cc5
NA		 1405 }
1406
a60c0903
NA		 1407 nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE);
1408 if (!nest)
1409 return -EMSGSIZE;
a60c0903 1410
1080ab95 1411 if (vg) {
72f4af4e
NA		 1412 u16 pvid;
1413
1414 pvid = br_get_pvid(vg);
1080ab95
NA		 1415 list_for_each_entry(v, &vg->vlan_list, vlist) {
1416 struct bridge_vlan_xstats vxi;
1417 struct br_vlan_stats stats;
1418
1419 if (++vl_idx < *prividx)
1420 continue;
1421 memset(&vxi, 0, sizeof(vxi));
1422 vxi.vid = v->vid;
61ba1a2d 1423 vxi.flags = v->flags;
72f4af4e
NA		 1424 if (v->vid == pvid)
1425 vxi.flags |= BRIDGE_VLAN_INFO_PVID;
1080ab95
NA		 1426 br_vlan_get_stats(v, &stats);
1427 vxi.rx_bytes = stats.rx_bytes;
1428 vxi.rx_packets = stats.rx_packets;
1429 vxi.tx_bytes = stats.tx_bytes;
1430 vxi.tx_packets = stats.tx_packets;
1431
1432 if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi))
1433 goto nla_put_failure;
1434 }
1435 }
1436
1437#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1438 if (++vl_idx >= *prividx) {
1439 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST,
1440 sizeof(struct br_mcast_stats),
1441 BRIDGE_XSTATS_PAD);
1442 if (!nla)
a60c0903 1443 goto nla_put_failure;
d5ff8c41 1444 br_multicast_get_stats(br, p, nla_data(nla));
a60c0903 1445 }
1080ab95 1446#endif
a60c0903
NA		 1447 nla_nest_end(skb, nest);
1448 *prividx = 0;
1080ab95 1449
a60c0903
NA		 1450 return 0;
1451
1452nla_put_failure:
1453 nla_nest_end(skb, nest);
1454 *prividx = vl_idx;
1455
1456 return -EMSGSIZE;
1457}
fed0a159 1458
207895fd 1459static struct rtnl_af_ops br_af_ops __read_mostly = {
6cbdceeb 1460 .family = AF_BRIDGE,
b1974ed0 1461 .get_link_af_size = br_get_link_af_size_filtered,
6cbdceeb
VY		 1462};
1463
149ddd83 1464struct rtnl_link_ops br_link_ops __read_mostly = {
ced8283f
JP		 1465 .kind = "bridge",
1466 .priv_size = sizeof(struct net_bridge),
1467 .setup = br_dev_setup,
eb4cb851 1468 .maxtype = IFLA_BR_MAX,
13323516 1469 .policy = br_policy,
ced8283f
JP		 1470 .validate = br_validate,
1471 .newlink = br_dev_newlink,
13323516 1472 .changelink = br_changelink,
ced8283f 1473 .dellink = br_dev_delete,
e5c3ea5c
JP		 1474 .get_size = br_get_size,
1475 .fill_info = br_fill_info,
a60c0903
NA		 1476 .fill_linkxstats = br_fill_linkxstats,
1477 .get_linkxstats_size = br_get_linkxstats_size,
3ac636b8
JP		 1478
1479 .slave_maxtype = IFLA_BRPORT_MAX,
1480 .slave_policy = br_port_policy,
1481 .slave_changelink = br_port_slave_changelink,
ced8283f
JP		 1482 .get_slave_size = br_port_get_slave_size,
1483 .fill_slave_info = br_port_fill_slave_info,
bb900b27 1484};
11dc1f36 1485
32fe21c0 1486int __init br_netlink_init(void)
11dc1f36 1487{
3ec8e9f0
VY		 1488 int err;
1489
1490 br_mdb_init();
3678a9d8 1491 rtnl_af_register(&br_af_ops);
3ec8e9f0 1492
6cbdceeb
VY		 1493 err = rtnl_link_register(&br_link_ops);
1494 if (err)
1495 goto out_af;
1496
3ec8e9f0 1497 return 0;
6cbdceeb
VY		 1498
1499out_af:
1500 rtnl_af_unregister(&br_af_ops);
3ec8e9f0
VY		 1501 br_mdb_uninit();
1502 return err;
11dc1f36
SH		 1503}
1504
34666d46 1505void br_netlink_fini(void)
11dc1f36 1506{
3ec8e9f0 1507 br_mdb_uninit();
6cbdceeb 1508 rtnl_af_unregister(&br_af_ops);
bb900b27 1509 rtnl_link_unregister(&br_link_ops);
11dc1f36 1510}
Linux 6.x block layer and io_uring tree(s)