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Merge branch 'vrf-ipv6'
[mirror_ubuntu-zesty-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"
11dc1f36 23
2594e906 24static int __get_num_vlan_infos(struct net_bridge_vlan_group *vg,
77751ee8 25 u32 filter_mask)
fed0a159 26{
2594e906
NA		 27 struct net_bridge_vlan *v;
28 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 29 u16 flags, pvid;
fed0a159
RP		 30 int num_vlans = 0;
31
fed0a159
RP		 32 if (!(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
33 return 0;
34
77751ee8 35 pvid = br_get_pvid(vg);
2594e906 36 /* Count number of vlan infos */
586c2b57 37 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
fed0a159 38 flags = 0;
2594e906
NA		 39 /* only a context, bridge vlan not activated */
40 if (!br_vlan_should_use(v))
41 continue;
42 if (v->vid == pvid)
fed0a159
RP		 43 flags |= BRIDGE_VLAN_INFO_PVID;
44
2594e906 45 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
fed0a159
RP		 46 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
47
48 if (vid_range_start == 0) {
49 goto initvars;
2594e906 50 } else if ((v->vid - vid_range_end) == 1 &&
fed0a159 51 flags == vid_range_flags) {
2594e906 52 vid_range_end = v->vid;
fed0a159
RP		 53 continue;
54 } else {
55 if ((vid_range_end - vid_range_start) > 0)
56 num_vlans += 2;
57 else
58 num_vlans += 1;
59 }
60initvars:
2594e906
NA		 61 vid_range_start = v->vid;
62 vid_range_end = v->vid;
fed0a159
RP		 63 vid_range_flags = flags;
64 }
65
66 if (vid_range_start != 0) {
67 if ((vid_range_end - vid_range_start) > 0)
68 num_vlans += 2;
69 else
70 num_vlans += 1;
71 }
72
73 return num_vlans;
74}
75
2594e906 76static int br_get_num_vlan_infos(struct net_bridge_vlan_group *vg,
77751ee8 77 u32 filter_mask)
2594e906 78{
586c2b57
NA		 79 int num_vlans;
80
2594e906
NA		 81 if (!vg)
82 return 0;
83
84 if (filter_mask & RTEXT_FILTER_BRVLAN)
85 return vg->num_vlans;
86
586c2b57
NA		 87 rcu_read_lock();
88 num_vlans = __get_num_vlan_infos(vg, filter_mask);
89 rcu_read_unlock();
90
91 return num_vlans;
2594e906
NA		 92}
93
fed0a159
RP		 94static size_t br_get_link_af_size_filtered(const struct net_device *dev,
95 u32 filter_mask)
b7853d73 96{
2594e906
NA		 97 struct net_bridge_vlan_group *vg = NULL;
98 struct net_bridge_port *p;
99 struct net_bridge *br;
fed0a159 100 int num_vlan_infos;
b7853d73 101
2f56f6be 102 rcu_read_lock();
2594e906
NA		 103 if (br_port_exists(dev)) {
104 p = br_port_get_rcu(dev);
105 vg = nbp_vlan_group(p);
2594e906
NA		 106 } else if (dev->priv_flags & IFF_EBRIDGE) {
107 br = netdev_priv(dev);
108 vg = br_vlan_group(br);
2594e906 109 }
77751ee8 110 num_vlan_infos = br_get_num_vlan_infos(vg, filter_mask);
2f56f6be 111 rcu_read_unlock();
b7853d73
RP		 112
113 /* Each VLAN is returned in bridge_vlan_info along with flags */
fed0a159 114 return num_vlan_infos * nla_total_size(sizeof(struct bridge_vlan_info));
b7853d73
RP		 115}
116
25c71c75 117static inline size_t br_port_info_size(void)
118{
119 return nla_total_size(1) /* IFLA_BRPORT_STATE */
120 + nla_total_size(2) /* IFLA_BRPORT_PRIORITY */
121 + nla_total_size(4) /* IFLA_BRPORT_COST */
122 + nla_total_size(1) /* IFLA_BRPORT_MODE */
a2e01a65 123 + nla_total_size(1) /* IFLA_BRPORT_GUARD */
1007dd1a 124 + nla_total_size(1) /* IFLA_BRPORT_PROTECT */
3da889b6 125 + nla_total_size(1) /* IFLA_BRPORT_FAST_LEAVE */
9ba18891 126 + nla_total_size(1) /* IFLA_BRPORT_LEARNING */
867a5943 127 + nla_total_size(1) /* IFLA_BRPORT_UNICAST_FLOOD */
355b9f9d 128 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP */
786c2077 129 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP_WIFI */
4ebc7660 130 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
80df9a26 131 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */
96f94e7f
NA		 132 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */
133 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */
42d452c4
NA		 134 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_ID */
135 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_NO */
e08e838a
NA		 136 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */
137 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_CONFIG_PENDING */
61c0a9a8
NA		 138 + nla_total_size(sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */
139 + nla_total_size(sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */
140 + nla_total_size(sizeof(u64)) /* IFLA_BRPORT_HOLD_TIMER */
5d6ae479
NA		 141#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
142 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MULTICAST_ROUTER */
143#endif
25c71c75 144 + 0;
145}
146
fed0a159 147static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask)
339bf98f
TG		 148{
149 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
25c71c75 150 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
151 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
152 + nla_total_size(4) /* IFLA_MASTER */
153 + nla_total_size(4) /* IFLA_MTU */
154 + nla_total_size(4) /* IFLA_LINK */
155 + nla_total_size(1) /* IFLA_OPERSTATE */
b7853d73 156 + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */
fed0a159
RP		 157 + nla_total_size(br_get_link_af_size_filtered(dev,
158 filter_mask)); /* IFLA_AF_SPEC */
25c71c75 159}
160
161static int br_port_fill_attrs(struct sk_buff *skb,
162 const struct net_bridge_port *p)
163{
164 u8 mode = !!(p->flags & BR_HAIRPIN_MODE);
61c0a9a8 165 u64 timerval;
25c71c75 166
167 if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
168 nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) ||
169 nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) ||
a2e01a65 170 nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
1007dd1a 171 nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
c2d3babf 172 nla_put_u8(skb, IFLA_BRPORT_PROTECT, !!(p->flags & BR_ROOT_BLOCK)) ||
9ba18891 173 nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||
867a5943 174 nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) ||
95850116 175 nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD, !!(p->flags & BR_FLOOD)) ||
842a9ae0
JM		 176 nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) ||
177 nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI,
4ebc7660
NA		 178 !!(p->flags & BR_PROXYARP_WIFI)) ||
179 nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
80df9a26
NA		 180 &p->designated_root) ||
181 nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id),
96f94e7f
NA		 182 &p->designated_bridge) ||
183 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) ||
42d452c4
NA		 184 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost) ||
185 nla_put_u16(skb, IFLA_BRPORT_ID, p->port_id) ||
e08e838a
NA		 186 nla_put_u16(skb, IFLA_BRPORT_NO, p->port_no) ||
187 nla_put_u8(skb, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
188 p->topology_change_ack) ||
189 nla_put_u8(skb, IFLA_BRPORT_CONFIG_PENDING, p->config_pending))
25c71c75 190 return -EMSGSIZE;
191
61c0a9a8
NA		 192 timerval = br_timer_value(&p->message_age_timer);
193 if (nla_put_u64(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval))
194 return -EMSGSIZE;
195 timerval = br_timer_value(&p->forward_delay_timer);
196 if (nla_put_u64(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval))
197 return -EMSGSIZE;
198 timerval = br_timer_value(&p->hold_timer);
199 if (nla_put_u64(skb, IFLA_BRPORT_HOLD_TIMER, timerval))
200 return -EMSGSIZE;
201
5d6ae479
NA		 202#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
203 if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
204 p->multicast_router))
205 return -EMSGSIZE;
206#endif
207
25c71c75 208 return 0;
339bf98f
TG		 209}
210
36cd0ffb
RP		 211static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start,
212 u16 vid_end, u16 flags)
213{
214 struct bridge_vlan_info vinfo;
215
216 if ((vid_end - vid_start) > 0) {
217 /* add range to skb */
218 vinfo.vid = vid_start;
219 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN;
220 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
221 sizeof(vinfo), &vinfo))
222 goto nla_put_failure;
223
36cd0ffb
RP		 224 vinfo.vid = vid_end;
225 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END;
226 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
227 sizeof(vinfo), &vinfo))
228 goto nla_put_failure;
229 } else {
230 vinfo.vid = vid_start;
231 vinfo.flags = flags;
232 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
233 sizeof(vinfo), &vinfo))
234 goto nla_put_failure;
235 }
236
237 return 0;
238
239nla_put_failure:
240 return -EMSGSIZE;
241}
242
243static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb,
77751ee8 244 struct net_bridge_vlan_group *vg)
36cd0ffb 245{
2594e906
NA		 246 struct net_bridge_vlan *v;
247 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 248 u16 flags, pvid;
36cd0ffb
RP		 249 int err = 0;
250
251 /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan
252 * and mark vlan info with begin and end flags
253 * if vlaninfo represents a range
254 */
77751ee8 255 pvid = br_get_pvid(vg);
2594e906 256 list_for_each_entry(v, &vg->vlan_list, vlist) {
36cd0ffb 257 flags = 0;
2594e906
NA		 258 if (!br_vlan_should_use(v))
259 continue;
260 if (v->vid == pvid)
36cd0ffb
RP		 261 flags |= BRIDGE_VLAN_INFO_PVID;
262
2594e906 263 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 264 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
265
266 if (vid_range_start == 0) {
267 goto initvars;
2594e906 268 } else if ((v->vid - vid_range_end) == 1 &&
36cd0ffb 269 flags == vid_range_flags) {
2594e906 270 vid_range_end = v->vid;
36cd0ffb
RP		 271 continue;
272 } else {
273 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
274 vid_range_end,
275 vid_range_flags);
276 if (err)
277 return err;
278 }
279
280initvars:
2594e906
NA		 281 vid_range_start = v->vid;
282 vid_range_end = v->vid;
36cd0ffb
RP		 283 vid_range_flags = flags;
284 }
285
0fe6de49
RP		 286 if (vid_range_start != 0) {
287 /* Call it once more to send any left over vlans */
288 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
289 vid_range_end,
290 vid_range_flags);
291 if (err)
292 return err;
293 }
36cd0ffb
RP		 294
295 return 0;
296}
297
298static int br_fill_ifvlaninfo(struct sk_buff *skb,
77751ee8 299 struct net_bridge_vlan_group *vg)
36cd0ffb
RP		 300{
301 struct bridge_vlan_info vinfo;
2594e906 302 struct net_bridge_vlan *v;
77751ee8 303 u16 pvid;
36cd0ffb 304
77751ee8 305 pvid = br_get_pvid(vg);
2594e906
NA		 306 list_for_each_entry(v, &vg->vlan_list, vlist) {
307 if (!br_vlan_should_use(v))
308 continue;
309
310 vinfo.vid = v->vid;
36cd0ffb 311 vinfo.flags = 0;
2594e906 312 if (v->vid == pvid)
36cd0ffb
RP		 313 vinfo.flags |= BRIDGE_VLAN_INFO_PVID;
314
2594e906 315 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 316 vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
317
318 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
319 sizeof(vinfo), &vinfo))
320 goto nla_put_failure;
321 }
322
323 return 0;
324
325nla_put_failure:
326 return -EMSGSIZE;
327}
328
11dc1f36
SH		 329/*
330 * Create one netlink message for one interface
331 * Contains port and master info as well as carrier and bridge state.
332 */
6cbdceeb 333static int br_fill_ifinfo(struct sk_buff *skb,
2594e906 334 struct net_bridge_port *port,
6cbdceeb
VY		 335 u32 pid, u32 seq, int event, unsigned int flags,
336 u32 filter_mask, const struct net_device *dev)
11dc1f36 337{
2594e906 338 struct net_bridge *br;
74685962 339 struct ifinfomsg *hdr;
11dc1f36 340 struct nlmsghdr *nlh;
11dc1f36 341 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
11dc1f36 342
6cbdceeb
VY		 343 if (port)
344 br = port->br;
345 else
346 br = netdev_priv(dev);
347
28a16c97 348 br_debug(br, "br_fill_info event %d port %s master %s\n",
349 event, dev->name, br->dev->name);
11dc1f36 350
74685962
TG		 351 nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags);
352 if (nlh == NULL)
26932566 353 return -EMSGSIZE;
11dc1f36 354
74685962
TG		 355 hdr = nlmsg_data(nlh);
356 hdr->ifi_family = AF_BRIDGE;
357 hdr->__ifi_pad = 0;
358 hdr->ifi_type = dev->type;
359 hdr->ifi_index = dev->ifindex;
360 hdr->ifi_flags = dev_get_flags(dev);
361 hdr->ifi_change = 0;
11dc1f36 362
2eb812e6
DM		 363 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
364 nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) ||
365 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
366 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
367 (dev->addr_len &&
368 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
a54acb3a
ND		 369 (dev->ifindex != dev_get_iflink(dev) &&
370 nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
2eb812e6 371 goto nla_put_failure;
25c71c75 372
6cbdceeb 373 if (event == RTM_NEWLINK && port) {
25c71c75 374 struct nlattr *nest
375 = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
376
377 if (nest == NULL || br_port_fill_attrs(skb, port) < 0)
378 goto nla_put_failure;
379 nla_nest_end(skb, nest);
380 }
381
6cbdceeb 382 /* Check if the VID information is requested */
36cd0ffb
RP		 383 if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
384 (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
2594e906 385 struct net_bridge_vlan_group *vg;
36cd0ffb
RP		 386 struct nlattr *af;
387 int err;
6cbdceeb 388
77751ee8 389 if (port)
2594e906 390 vg = nbp_vlan_group(port);
77751ee8 391 else
2594e906 392 vg = br_vlan_group(br);
6cbdceeb 393
2594e906 394 if (!vg || !vg->num_vlans)
6cbdceeb
VY		 395 goto done;
396
397 af = nla_nest_start(skb, IFLA_AF_SPEC);
398 if (!af)
399 goto nla_put_failure;
400
36cd0ffb 401 if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
77751ee8 402 err = br_fill_ifvlaninfo_compressed(skb, vg);
36cd0ffb 403 else
77751ee8 404 err = br_fill_ifvlaninfo(skb, vg);
36cd0ffb
RP		 405 if (err)
406 goto nla_put_failure;
6cbdceeb
VY		 407 nla_nest_end(skb, af);
408 }
409
410done:
053c095a
JB		 411 nlmsg_end(skb, nlh);
412 return 0;
11dc1f36 413
74685962 414nla_put_failure:
26932566
PM		 415 nlmsg_cancel(skb, nlh);
416 return -EMSGSIZE;
11dc1f36
SH		 417}
418
419/*
420 * Notify listeners of a change in port information
421 */
422void br_ifinfo_notify(int event, struct net_bridge_port *port)
423{
407af329 424 struct net *net;
11dc1f36 425 struct sk_buff *skb;
280a306c 426 int err = -ENOBUFS;
fed0a159 427 u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
11dc1f36 428
407af329
VY		 429 if (!port)
430 return;
431
432 net = dev_net(port->dev);
28a16c97 433 br_debug(port->br, "port %u(%s) event %d\n",
95c96174 434 (unsigned int)port->port_no, port->dev->name, event);
28a16c97 435
fed0a159 436 skb = nlmsg_new(br_nlmsg_size(port->dev, filter), GFP_ATOMIC);
280a306c
TG		 437 if (skb == NULL)
438 goto errout;
439
fed0a159 440 err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, port->dev);
26932566
PM		 441 if (err < 0) {
442 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
443 WARN_ON(err == -EMSGSIZE);
444 kfree_skb(skb);
445 goto errout;
446 }
1ce85fe4
PNA		 447 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
448 return;
280a306c 449errout:
87e823b3 450 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
11dc1f36
SH		 451}
452
407af329 453
11dc1f36
SH		 454/*
455 * Dump information about all ports, in response to GETLINK
456 */
e5a55a89 457int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
46c264da 458 struct net_device *dev, u32 filter_mask, int nlflags)
11dc1f36 459{
1fb1754a 460 struct net_bridge_port *port = br_port_get_rtnl(dev);
e5a55a89 461
36cd0ffb
RP		 462 if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
463 !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
1b846f92 464 return 0;
11dc1f36 465
46c264da 466 return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
1b846f92 467 filter_mask, dev);
11dc1f36
SH		 468}
469
bdced7ef
RP		 470static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
471 int cmd, struct bridge_vlan_info *vinfo)
472{
473 int err = 0;
474
475 switch (cmd) {
476 case RTM_SETLINK:
477 if (p) {
2594e906
NA		 478 /* if the MASTER flag is set this will act on the global
479 * per-VLAN entry as well
480 */
bdced7ef
RP		 481 err = nbp_vlan_add(p, vinfo->vid, vinfo->flags);
482 if (err)
483 break;
bdced7ef 484 } else {
2594e906 485 vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY;
bdced7ef
RP		 486 err = br_vlan_add(br, vinfo->vid, vinfo->flags);
487 }
488 break;
489
490 case RTM_DELLINK:
491 if (p) {
492 nbp_vlan_delete(p, vinfo->vid);
493 if (vinfo->flags & BRIDGE_VLAN_INFO_MASTER)
494 br_vlan_delete(p->br, vinfo->vid);
495 } else {
496 br_vlan_delete(br, vinfo->vid);
497 }
498 break;
499 }
500
501 return err;
502}
407af329
VY		 503
504static int br_afspec(struct net_bridge *br,
505 struct net_bridge_port *p,
506 struct nlattr *af_spec,
507 int cmd)
508{
bdced7ef
RP		 509 struct bridge_vlan_info *vinfo_start = NULL;
510 struct bridge_vlan_info *vinfo = NULL;
511 struct nlattr *attr;
407af329 512 int err = 0;
bdced7ef 513 int rem;
407af329 514
bdced7ef
RP		 515 nla_for_each_nested(attr, af_spec, rem) {
516 if (nla_type(attr) != IFLA_BRIDGE_VLAN_INFO)
517 continue;
518 if (nla_len(attr) != sizeof(struct bridge_vlan_info))
519 return -EINVAL;
520 vinfo = nla_data(attr);
462e1ead
NA		 521 if (!vinfo->vid || vinfo->vid >= VLAN_VID_MASK)
522 return -EINVAL;
bdced7ef
RP		 523 if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
524 if (vinfo_start)
525 return -EINVAL;
526 vinfo_start = vinfo;
6623c60d
NA		 527 /* don't allow range of pvids */
528 if (vinfo_start->flags & BRIDGE_VLAN_INFO_PVID)
529 return -EINVAL;
bdced7ef
RP		 530 continue;
531 }
407af329 532
bdced7ef
RP		 533 if (vinfo_start) {
534 struct bridge_vlan_info tmp_vinfo;
535 int v;
407af329 536
bdced7ef
RP		 537 if (!(vinfo->flags & BRIDGE_VLAN_INFO_RANGE_END))
538 return -EINVAL;
407af329 539
bdced7ef
RP		 540 if (vinfo->vid <= vinfo_start->vid)
541 return -EINVAL;
542
543 memcpy(&tmp_vinfo, vinfo_start,
544 sizeof(struct bridge_vlan_info));
407af329 545
bdced7ef
RP		 546 for (v = vinfo_start->vid; v <= vinfo->vid; v++) {
547 tmp_vinfo.vid = v;
548 err = br_vlan_info(br, p, cmd, &tmp_vinfo);
407af329
VY		 549 if (err)
550 break;
bdced7ef
RP		 551 }
552 vinfo_start = NULL;
553 } else {
554 err = br_vlan_info(br, p, cmd, vinfo);
407af329 555 }
bdced7ef
RP		 556 if (err)
557 break;
407af329
VY		 558 }
559
560 return err;
561}
562
3ac636b8 563static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
25c71c75 564 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
565 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
566 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
567 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
a2e01a65 568 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
1007dd1a 569 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
6f705d8c 570 [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 },
9ba18891 571 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
867a5943 572 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
355b9f9d 573 [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 },
786c2077 574 [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },
5d6ae479 575 [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },
25c71c75 576};
577
578/* Change the state of the port and notify spanning tree */
579static int br_set_port_state(struct net_bridge_port *p, u8 state)
580{
581 if (state > BR_STATE_BLOCKING)
582 return -EINVAL;
583
584 /* if kernel STP is running, don't allow changes */
585 if (p->br->stp_enabled == BR_KERNEL_STP)
586 return -EBUSY;
587
576eb625 588 /* if device is not up, change is not allowed
589 * if link is not present, only allowable state is disabled
590 */
25c71c75 591 if (!netif_running(p->dev) ||
576eb625 592 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
25c71c75 593 return -ENETDOWN;
594
775dd692 595 br_set_state(p, state);
25c71c75 596 br_log_state(p);
597 br_port_state_selection(p->br);
598 return 0;
599}
600
601/* Set/clear or port flags based on attribute */
602static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
603 int attrtype, unsigned long mask)
604{
605 if (tb[attrtype]) {
606 u8 flag = nla_get_u8(tb[attrtype]);
607 if (flag)
608 p->flags |= mask;
609 else
610 p->flags &= ~mask;
611 }
612}
613
614/* Process bridge protocol info on port */
615static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
616{
617 int err;
e028e4b8 618 unsigned long old_flags = p->flags;
25c71c75 619
620 br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
a2e01a65 621 br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
c2d3babf 622 br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
3d84fa98 623 br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
9ba18891 624 br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
867a5943 625 br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
95850116 626 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
842a9ae0 627 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
25c71c75 628
629 if (tb[IFLA_BRPORT_COST]) {
630 err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
631 if (err)
632 return err;
633 }
634
635 if (tb[IFLA_BRPORT_PRIORITY]) {
636 err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
637 if (err)
638 return err;
639 }
640
641 if (tb[IFLA_BRPORT_STATE]) {
642 err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
643 if (err)
644 return err;
645 }
e028e4b8 646
9b0c6e4d
NA		 647 if (tb[IFLA_BRPORT_FLUSH])
648 br_fdb_delete_by_port(p->br, p, 0, 0);
649
5d6ae479
NA		 650#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
651 if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {
652 u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);
653
654 err = br_multicast_set_port_router(p, mcast_router);
655 if (err)
656 return err;
657 }
658#endif
e028e4b8 659 br_port_flags_change(p, old_flags ^ p->flags);
25c71c75 660 return 0;
661}
662
663/* Change state and parameters on port. */
add511b3 664int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
11dc1f36 665{
74685962 666 struct nlattr *protinfo;
407af329 667 struct nlattr *afspec;
11dc1f36 668 struct net_bridge_port *p;
2062cc20 669 struct nlattr *tb[IFLA_BRPORT_MAX + 1];
41c498b9 670 int err = 0;
11dc1f36 671
c60ee67f
H		 672 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO);
673 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329 674 if (!protinfo && !afspec)
25c71c75 675 return 0;
11dc1f36 676
ec1e5610 677 p = br_port_get_rtnl(dev);
407af329 678 /* We want to accept dev as bridge itself if the AF_SPEC
8e3bff96 679 * is set to see if someone is setting vlan info on the bridge
407af329 680 */
7b99a993 681 if (!p && !afspec)
b5ed54e9 682 return -EINVAL;
11dc1f36 683
407af329
VY		 684 if (p && protinfo) {
685 if (protinfo->nla_type & NLA_F_NESTED) {
686 err = nla_parse_nested(tb, IFLA_BRPORT_MAX,
3ac636b8 687 protinfo, br_port_policy);
407af329
VY		 688 if (err)
689 return err;
690
691 spin_lock_bh(&p->br->lock);
692 err = br_setport(p, tb);
693 spin_unlock_bh(&p->br->lock);
694 } else {
8e3bff96 695 /* Binary compatibility with old RSTP */
407af329
VY		 696 if (nla_len(protinfo) < sizeof(u8))
697 return -EINVAL;
698
699 spin_lock_bh(&p->br->lock);
700 err = br_set_port_state(p, nla_get_u8(protinfo));
701 spin_unlock_bh(&p->br->lock);
702 }
25c71c75 703 if (err)
407af329
VY		 704 goto out;
705 }
11dc1f36 706
407af329
VY		 707 if (afspec) {
708 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
709 afspec, RTM_SETLINK);
25c71c75 710 }
b03b6dd5 711
25c71c75 712 if (err == 0)
713 br_ifinfo_notify(RTM_NEWLINK, p);
407af329 714out:
25c71c75 715 return err;
11dc1f36
SH		 716}
717
407af329 718/* Delete port information */
add511b3 719int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
407af329 720{
407af329
VY		 721 struct nlattr *afspec;
722 struct net_bridge_port *p;
8508025c 723 int err = 0;
407af329 724
c60ee67f 725 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329
VY		 726 if (!afspec)
727 return 0;
728
729 p = br_port_get_rtnl(dev);
730 /* We want to accept dev as bridge itself as well */
731 if (!p && !(dev->priv_flags & IFF_EBRIDGE))
732 return -EINVAL;
733
734 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
735 afspec, RTM_DELLINK);
02dba438
RP		 736 if (err == 0)
737 /* Send RTM_NEWLINK because userspace
738 * expects RTM_NEWLINK for vlan dels
739 */
740 br_ifinfo_notify(RTM_NEWLINK, p);
407af329
VY		 741
742 return err;
743}
bb900b27 744static int br_validate(struct nlattr *tb[], struct nlattr *data[])
745{
746 if (tb[IFLA_ADDRESS]) {
747 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
748 return -EINVAL;
749 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
750 return -EADDRNOTAVAIL;
751 }
752
d2d427b3
TM		 753 if (!data)
754 return 0;
755
756#ifdef CONFIG_BRIDGE_VLAN_FILTERING
757 if (data[IFLA_BR_VLAN_PROTOCOL]) {
758 switch (nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])) {
759 case htons(ETH_P_8021Q):
760 case htons(ETH_P_8021AD):
761 break;
762 default:
763 return -EPROTONOSUPPORT;
764 }
765 }
766#endif
767
bb900b27 768 return 0;
769}
770
30313a3d
TM		 771static int br_dev_newlink(struct net *src_net, struct net_device *dev,
772 struct nlattr *tb[], struct nlattr *data[])
773{
774 struct net_bridge *br = netdev_priv(dev);
775
776 if (tb[IFLA_ADDRESS]) {
777 spin_lock_bh(&br->lock);
778 br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
779 spin_unlock_bh(&br->lock);
780 }
781
782 return register_netdevice(dev);
783}
784
3ac636b8
JP		 785static int br_port_slave_changelink(struct net_device *brdev,
786 struct net_device *dev,
787 struct nlattr *tb[],
788 struct nlattr *data[])
789{
963ad948
NA		 790 struct net_bridge *br = netdev_priv(brdev);
791 int ret;
792
3ac636b8
JP		 793 if (!data)
794 return 0;
963ad948
NA		 795
796 spin_lock_bh(&br->lock);
797 ret = br_setport(br_port_get_rtnl(dev), data);
798 spin_unlock_bh(&br->lock);
799
800 return ret;
3ac636b8
JP		 801}
802
ced8283f
JP		 803static int br_port_fill_slave_info(struct sk_buff *skb,
804 const struct net_device *brdev,
805 const struct net_device *dev)
806{
807 return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
808}
809
810static size_t br_port_get_slave_size(const struct net_device *brdev,
811 const struct net_device *dev)
812{
813 return br_port_info_size();
814}
815
13323516
JP		 816static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
817 [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
818 [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
819 [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
af615762
JT		 820 [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
821 [IFLA_BR_STP_STATE] = { .type = NLA_U32 },
822 [IFLA_BR_PRIORITY] = { .type = NLA_U16 },
a7854037 823 [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
d2d427b3 824 [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
7910228b 825 [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
111189ab
NA		 826 [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
827 .len = ETH_ALEN },
a9a6bc70 828 [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
89126327 829 [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
295141d9 830 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
ba062d7c 831 [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
431db3c0 832 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
858079fd 833 [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
79b859f5 834 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
b89e6bab 835 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
7e4df51e
NA		 836 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
837 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
838 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
839 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
840 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
841 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
93870cc0
NA		 842 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 },
843 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 },
844 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 },
0f963b75 845 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 },
13323516
JP		 846};
847
848static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
849 struct nlattr *data[])
850{
851 struct net_bridge *br = netdev_priv(brdev);
852 int err;
853
854 if (!data)
855 return 0;
856
857 if (data[IFLA_BR_FORWARD_DELAY]) {
858 err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
859 if (err)
860 return err;
861 }
862
863 if (data[IFLA_BR_HELLO_TIME]) {
864 err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
865 if (err)
866 return err;
867 }
868
869 if (data[IFLA_BR_MAX_AGE]) {
870 err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
871 if (err)
872 return err;
873 }
874
af615762 875 if (data[IFLA_BR_AGEING_TIME]) {
c62987bb
SF		 876 err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
877 if (err)
878 return err;
af615762
JT		 879 }
880
881 if (data[IFLA_BR_STP_STATE]) {
882 u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
883
884 br_stp_set_enabled(br, stp_enabled);
885 }
886
887 if (data[IFLA_BR_PRIORITY]) {
888 u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]);
889
890 br_stp_set_bridge_priority(br, priority);
891 }
892
a7854037
NA		 893 if (data[IFLA_BR_VLAN_FILTERING]) {
894 u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
895
896 err = __br_vlan_filter_toggle(br, vlan_filter);
897 if (err)
898 return err;
899 }
900
d2d427b3
TM		 901#ifdef CONFIG_BRIDGE_VLAN_FILTERING
902 if (data[IFLA_BR_VLAN_PROTOCOL]) {
903 __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]);
904
905 err = __br_vlan_set_proto(br, vlan_proto);
906 if (err)
907 return err;
908 }
0f963b75
NA		 909
910 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
911 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
912
913 err = __br_vlan_set_default_pvid(br, defpvid);
914 if (err)
915 return err;
916 }
d2d427b3
TM		 917#endif
918
7910228b
NA		 919 if (data[IFLA_BR_GROUP_FWD_MASK]) {
920 u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);
921
922 if (fwd_mask & BR_GROUPFWD_RESTRICTED)
923 return -EINVAL;
924 br->group_fwd_mask = fwd_mask;
925 }
926
111189ab
NA		 927 if (data[IFLA_BR_GROUP_ADDR]) {
928 u8 new_addr[ETH_ALEN];
929
930 if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
931 return -EINVAL;
932 memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
933 if (!is_link_local_ether_addr(new_addr))
934 return -EINVAL;
935 if (new_addr[5] == 1 || /* 802.3x Pause address */
936 new_addr[5] == 2 || /* 802.3ad Slow protocols */
937 new_addr[5] == 3) /* 802.1X PAE address */
938 return -EINVAL;
939 spin_lock_bh(&br->lock);
940 memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
941 spin_unlock_bh(&br->lock);
942 br->group_addr_set = true;
943 br_recalculate_fwd_mask(br);
944 }
945
150217c6
NA		 946 if (data[IFLA_BR_FDB_FLUSH])
947 br_fdb_flush(br);
948
a9a6bc70
NA		 949#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
950 if (data[IFLA_BR_MCAST_ROUTER]) {
951 u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]);
952
953 err = br_multicast_set_router(br, multicast_router);
954 if (err)
955 return err;
956 }
89126327
NA		 957
958 if (data[IFLA_BR_MCAST_SNOOPING]) {
959 u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
960
961 err = br_multicast_toggle(br, mcast_snooping);
962 if (err)
963 return err;
964 }
295141d9
NA		 965
966 if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {
967 u8 val;
968
969 val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
970 br->multicast_query_use_ifaddr = !!val;
971 }
ba062d7c
NA		 972
973 if (data[IFLA_BR_MCAST_QUERIER]) {
974 u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
975
976 err = br_multicast_set_querier(br, mcast_querier);
977 if (err)
978 return err;
979 }
431db3c0
NA		 980
981 if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) {
982 u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]);
983
984 br->hash_elasticity = val;
985 }
858079fd
NA		 986
987 if (data[IFLA_BR_MCAST_HASH_MAX]) {
988 u32 hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]);
989
990 err = br_multicast_set_hash_max(br, hash_max);
991 if (err)
992 return err;
993 }
79b859f5
NA		 994
995 if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
996 u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
997
998 br->multicast_last_member_count = val;
999 }
b89e6bab
NA		 1000
1001 if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
1002 u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
1003
1004 br->multicast_startup_query_count = val;
1005 }
7e4df51e
NA		 1006
1007 if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
1008 u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
1009
1010 br->multicast_last_member_interval = clock_t_to_jiffies(val);
1011 }
1012
1013 if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
1014 u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
1015
1016 br->multicast_membership_interval = clock_t_to_jiffies(val);
1017 }
1018
1019 if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
1020 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
1021
1022 br->multicast_querier_interval = clock_t_to_jiffies(val);
1023 }
1024
1025 if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
1026 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
1027
1028 br->multicast_query_interval = clock_t_to_jiffies(val);
1029 }
1030
1031 if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
1032 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
1033
1034 br->multicast_query_response_interval = clock_t_to_jiffies(val);
1035 }
1036
1037 if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
1038 u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
1039
1040 br->multicast_startup_query_interval = clock_t_to_jiffies(val);
1041 }
a9a6bc70 1042#endif
93870cc0
NA		 1043#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1044 if (data[IFLA_BR_NF_CALL_IPTABLES]) {
1045 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]);
1046
1047 br->nf_call_iptables = val ? true : false;
1048 }
1049
1050 if (data[IFLA_BR_NF_CALL_IP6TABLES]) {
1051 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]);
1052
1053 br->nf_call_ip6tables = val ? true : false;
1054 }
1055
1056 if (data[IFLA_BR_NF_CALL_ARPTABLES]) {
1057 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]);
1058
1059 br->nf_call_arptables = val ? true : false;
1060 }
1061#endif
a9a6bc70 1062
13323516
JP		 1063 return 0;
1064}
1065
e5c3ea5c
JP		 1066static size_t br_get_size(const struct net_device *brdev)
1067{
1068 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1069 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1070 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
af615762
JT		 1071 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1072 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1073 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
a7854037 1074 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
d2d427b3
TM		 1075#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1076 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
0f963b75 1077 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
d2d427b3 1078#endif
7910228b 1079 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
5127c81f 1080 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
7599a220 1081 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
8762ba68 1082 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
684dd248 1083 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
b89e6bab
NA		 1084 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1085 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
d76bd14e
NA		 1086 nla_total_size(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1087 nla_total_size(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1088 nla_total_size(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1089 nla_total_size(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
111189ab 1090 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
a9a6bc70
NA		 1091#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1092 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
89126327 1093 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
295141d9 1094 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
ba062d7c 1095 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
b89e6bab
NA		 1096 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1097 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1098 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1099 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
7e4df51e
NA		 1100 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1101 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1102 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1103 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1104 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1105 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
93870cc0
NA		 1106#endif
1107#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1108 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1109 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1110 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
a9a6bc70 1111#endif
e5c3ea5c
JP		 1112 0;
1113}
1114
1115static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1116{
1117 struct net_bridge *br = netdev_priv(brdev);
1118 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1119 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1120 u32 age_time = jiffies_to_clock_t(br->max_age);
af615762
JT		 1121 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1122 u32 stp_enabled = br->stp_enabled;
1123 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
a7854037 1124 u8 vlan_enabled = br_vlan_enabled(br);
4917a154
NA		 1125 u64 clockval;
1126
1127 clockval = br_timer_value(&br->hello_timer);
1128 if (nla_put_u64(skb, IFLA_BR_HELLO_TIMER, clockval))
1129 return -EMSGSIZE;
1130 clockval = br_timer_value(&br->tcn_timer);
1131 if (nla_put_u64(skb, IFLA_BR_TCN_TIMER, clockval))
1132 return -EMSGSIZE;
1133 clockval = br_timer_value(&br->topology_change_timer);
1134 if (nla_put_u64(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval))
1135 return -EMSGSIZE;
1136 clockval = br_timer_value(&br->gc_timer);
1137 if (nla_put_u64(skb, IFLA_BR_GC_TIMER, clockval))
1138 return -EMSGSIZE;
e5c3ea5c
JP		 1139
1140 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1141 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
af615762
JT		 1142 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1143 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1144 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
a7854037 1145 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
7910228b 1146 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
4917a154
NA		 1147 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1148 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1149 &br->bridge_id) ||
1150 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1151 &br->designated_root) ||
684dd248 1152 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
ed416309
NA		 1153 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1154 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1155 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
d76bd14e 1156 br->topology_change_detected) ||
111189ab 1157 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr))
e5c3ea5c
JP		 1158 return -EMSGSIZE;
1159
d2d427b3 1160#ifdef CONFIG_BRIDGE_VLAN_FILTERING
0f963b75
NA		 1161 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
1162 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid))
d2d427b3
TM		 1163 return -EMSGSIZE;
1164#endif
a9a6bc70 1165#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
89126327 1166 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
295141d9
NA		 1167 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||
1168 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
ba062d7c 1169 br->multicast_query_use_ifaddr) ||
431db3c0
NA		 1170 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||
1171 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,
858079fd 1172 br->hash_elasticity) ||
79b859f5
NA		 1173 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1174 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
b89e6bab
NA		 1175 br->multicast_last_member_count) ||
1176 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
1177 br->multicast_startup_query_count))
a9a6bc70 1178 return -EMSGSIZE;
7e4df51e
NA		 1179
1180 clockval = jiffies_to_clock_t(br->multicast_last_member_interval);
1181 if (nla_put_u64(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval))
1182 return -EMSGSIZE;
1183 clockval = jiffies_to_clock_t(br->multicast_membership_interval);
1184 if (nla_put_u64(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval))
1185 return -EMSGSIZE;
1186 clockval = jiffies_to_clock_t(br->multicast_querier_interval);
1187 if (nla_put_u64(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval))
1188 return -EMSGSIZE;
1189 clockval = jiffies_to_clock_t(br->multicast_query_interval);
1190 if (nla_put_u64(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval))
1191 return -EMSGSIZE;
1192 clockval = jiffies_to_clock_t(br->multicast_query_response_interval);
1193 if (nla_put_u64(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval))
1194 return -EMSGSIZE;
1195 clockval = jiffies_to_clock_t(br->multicast_startup_query_interval);
1196 if (nla_put_u64(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval))
1197 return -EMSGSIZE;
a9a6bc70 1198#endif
93870cc0
NA		 1199#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1200 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
1201 br->nf_call_iptables ? 1 : 0) ||
1202 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
1203 br->nf_call_ip6tables ? 1 : 0) ||
1204 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
1205 br->nf_call_arptables ? 1 : 0))
1206 return -EMSGSIZE;
1207#endif
a9a6bc70 1208
e5c3ea5c
JP		 1209 return 0;
1210}
1211
fed0a159
RP		 1212static size_t br_get_link_af_size(const struct net_device *dev)
1213{
2594e906
NA		 1214 struct net_bridge_port *p;
1215 struct net_bridge *br;
1216 int num_vlans = 0;
fed0a159 1217
2594e906
NA		 1218 if (br_port_exists(dev)) {
1219 p = br_port_get_rtnl(dev);
1220 num_vlans = br_get_num_vlan_infos(nbp_vlan_group(p),
77751ee8 1221 RTEXT_FILTER_BRVLAN);
2594e906
NA		 1222 } else if (dev->priv_flags & IFF_EBRIDGE) {
1223 br = netdev_priv(dev);
1224 num_vlans = br_get_num_vlan_infos(br_vlan_group(br),
77751ee8 1225 RTEXT_FILTER_BRVLAN);
2594e906 1226 }
fed0a159
RP		 1227
1228 /* Each VLAN is returned in bridge_vlan_info along with flags */
2594e906 1229 return num_vlans * nla_total_size(sizeof(struct bridge_vlan_info));
fed0a159
RP		 1230}
1231
207895fd 1232static struct rtnl_af_ops br_af_ops __read_mostly = {
6cbdceeb
VY		 1233 .family = AF_BRIDGE,
1234 .get_link_af_size = br_get_link_af_size,
1235};
1236
149ddd83 1237struct rtnl_link_ops br_link_ops __read_mostly = {
ced8283f
JP		 1238 .kind = "bridge",
1239 .priv_size = sizeof(struct net_bridge),
1240 .setup = br_dev_setup,
eb4cb851 1241 .maxtype = IFLA_BR_MAX,
13323516 1242 .policy = br_policy,
ced8283f
JP		 1243 .validate = br_validate,
1244 .newlink = br_dev_newlink,
13323516 1245 .changelink = br_changelink,
ced8283f 1246 .dellink = br_dev_delete,
e5c3ea5c
JP		 1247 .get_size = br_get_size,
1248 .fill_info = br_fill_info,
3ac636b8
JP		 1249
1250 .slave_maxtype = IFLA_BRPORT_MAX,
1251 .slave_policy = br_port_policy,
1252 .slave_changelink = br_port_slave_changelink,
ced8283f
JP		 1253 .get_slave_size = br_port_get_slave_size,
1254 .fill_slave_info = br_port_fill_slave_info,
bb900b27 1255};
11dc1f36 1256
32fe21c0 1257int __init br_netlink_init(void)
11dc1f36 1258{
3ec8e9f0
VY		 1259 int err;
1260
1261 br_mdb_init();
3678a9d8 1262 rtnl_af_register(&br_af_ops);
3ec8e9f0 1263
6cbdceeb
VY		 1264 err = rtnl_link_register(&br_link_ops);
1265 if (err)
1266 goto out_af;
1267
3ec8e9f0 1268 return 0;
6cbdceeb
VY		 1269
1270out_af:
1271 rtnl_af_unregister(&br_af_ops);
3ec8e9f0
VY		 1272 br_mdb_uninit();
1273 return err;
11dc1f36
SH		 1274}
1275
34666d46 1276void br_netlink_fini(void)
11dc1f36 1277{
3ec8e9f0 1278 br_mdb_uninit();
6cbdceeb 1279 rtnl_af_unregister(&br_af_ops);
bb900b27 1280 rtnl_link_unregister(&br_link_ops);
11dc1f36 1281}
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