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veth: sctp: add NETIF_F_SCTP_CRC to device features
[thirdparty/kernel/linux.git] / net / bridge / br_netlink.c
CommitLineData
11dc1f36
SH		 1/*
2 * Bridge netlink control interface
3 *
4 * Authors:
5 * Stephen Hemminger <shemminger@osdl.org>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 */
12
13#include <linux/kernel.h>
5a0e3ad6 14#include <linux/slab.h>
bb900b27 15#include <linux/etherdevice.h>
32fe21c0 16#include <net/rtnetlink.h>
881d966b 17#include <net/net_namespace.h>
b854272b 18#include <net/sock.h>
407af329 19#include <uapi/linux/if_bridge.h>
bb900b27 20
11dc1f36 21#include "br_private.h"
b03b6dd5 22#include "br_private_stp.h"
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);
907b1e6e 105 vg = nbp_vlan_group_rcu(p);
2594e906
NA		 106 } else if (dev->priv_flags & IFF_EBRIDGE) {
107 br = netdev_priv(dev);
907b1e6e 108 vg = br_vlan_group_rcu(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 */
12a0faa3
ND		 138 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */
139 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */
140 + nla_total_size_64bit(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 192 timerval = br_timer_value(&p->message_age_timer);
12a0faa3
ND		 193 if (nla_put_u64_64bit(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval,
194 IFLA_BRPORT_PAD))
61c0a9a8
NA		 195 return -EMSGSIZE;
196 timerval = br_timer_value(&p->forward_delay_timer);
12a0faa3
ND		 197 if (nla_put_u64_64bit(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval,
198 IFLA_BRPORT_PAD))
61c0a9a8
NA		 199 return -EMSGSIZE;
200 timerval = br_timer_value(&p->hold_timer);
12a0faa3
ND		 201 if (nla_put_u64_64bit(skb, IFLA_BRPORT_HOLD_TIMER, timerval,
202 IFLA_BRPORT_PAD))
61c0a9a8
NA		 203 return -EMSGSIZE;
204
5d6ae479
NA		 205#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
206 if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
207 p->multicast_router))
208 return -EMSGSIZE;
209#endif
210
25c71c75 211 return 0;
339bf98f
TG		 212}
213
36cd0ffb
RP		 214static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start,
215 u16 vid_end, u16 flags)
216{
217 struct bridge_vlan_info vinfo;
218
219 if ((vid_end - vid_start) > 0) {
220 /* add range to skb */
221 vinfo.vid = vid_start;
222 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN;
223 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
224 sizeof(vinfo), &vinfo))
225 goto nla_put_failure;
226
36cd0ffb
RP		 227 vinfo.vid = vid_end;
228 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END;
229 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
230 sizeof(vinfo), &vinfo))
231 goto nla_put_failure;
232 } else {
233 vinfo.vid = vid_start;
234 vinfo.flags = flags;
235 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
236 sizeof(vinfo), &vinfo))
237 goto nla_put_failure;
238 }
239
240 return 0;
241
242nla_put_failure:
243 return -EMSGSIZE;
244}
245
246static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb,
77751ee8 247 struct net_bridge_vlan_group *vg)
36cd0ffb 248{
2594e906
NA		 249 struct net_bridge_vlan *v;
250 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 251 u16 flags, pvid;
36cd0ffb
RP		 252 int err = 0;
253
254 /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan
255 * and mark vlan info with begin and end flags
256 * if vlaninfo represents a range
257 */
77751ee8 258 pvid = br_get_pvid(vg);
e9c953ef 259 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
36cd0ffb 260 flags = 0;
2594e906
NA		 261 if (!br_vlan_should_use(v))
262 continue;
263 if (v->vid == pvid)
36cd0ffb
RP		 264 flags |= BRIDGE_VLAN_INFO_PVID;
265
2594e906 266 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 267 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
268
269 if (vid_range_start == 0) {
270 goto initvars;
2594e906 271 } else if ((v->vid - vid_range_end) == 1 &&
36cd0ffb 272 flags == vid_range_flags) {
2594e906 273 vid_range_end = v->vid;
36cd0ffb
RP		 274 continue;
275 } else {
276 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
277 vid_range_end,
278 vid_range_flags);
279 if (err)
280 return err;
281 }
282
283initvars:
2594e906
NA		 284 vid_range_start = v->vid;
285 vid_range_end = v->vid;
36cd0ffb
RP		 286 vid_range_flags = flags;
287 }
288
0fe6de49
RP		 289 if (vid_range_start != 0) {
290 /* Call it once more to send any left over vlans */
291 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
292 vid_range_end,
293 vid_range_flags);
294 if (err)
295 return err;
296 }
36cd0ffb
RP		 297
298 return 0;
299}
300
301static int br_fill_ifvlaninfo(struct sk_buff *skb,
77751ee8 302 struct net_bridge_vlan_group *vg)
36cd0ffb
RP		 303{
304 struct bridge_vlan_info vinfo;
2594e906 305 struct net_bridge_vlan *v;
77751ee8 306 u16 pvid;
36cd0ffb 307
77751ee8 308 pvid = br_get_pvid(vg);
e9c953ef 309 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
2594e906
NA		 310 if (!br_vlan_should_use(v))
311 continue;
312
313 vinfo.vid = v->vid;
36cd0ffb 314 vinfo.flags = 0;
2594e906 315 if (v->vid == pvid)
36cd0ffb
RP		 316 vinfo.flags |= BRIDGE_VLAN_INFO_PVID;
317
2594e906 318 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 319 vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
320
321 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
322 sizeof(vinfo), &vinfo))
323 goto nla_put_failure;
324 }
325
326 return 0;
327
328nla_put_failure:
329 return -EMSGSIZE;
330}
331
11dc1f36
SH		 332/*
333 * Create one netlink message for one interface
334 * Contains port and master info as well as carrier and bridge state.
335 */
6cbdceeb 336static int br_fill_ifinfo(struct sk_buff *skb,
2594e906 337 struct net_bridge_port *port,
6cbdceeb
VY		 338 u32 pid, u32 seq, int event, unsigned int flags,
339 u32 filter_mask, const struct net_device *dev)
11dc1f36 340{
2594e906 341 struct net_bridge *br;
74685962 342 struct ifinfomsg *hdr;
11dc1f36 343 struct nlmsghdr *nlh;
11dc1f36 344 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
11dc1f36 345
6cbdceeb
VY		 346 if (port)
347 br = port->br;
348 else
349 br = netdev_priv(dev);
350
28a16c97 351 br_debug(br, "br_fill_info event %d port %s master %s\n",
352 event, dev->name, br->dev->name);
11dc1f36 353
74685962
TG		 354 nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags);
355 if (nlh == NULL)
26932566 356 return -EMSGSIZE;
11dc1f36 357
74685962
TG		 358 hdr = nlmsg_data(nlh);
359 hdr->ifi_family = AF_BRIDGE;
360 hdr->__ifi_pad = 0;
361 hdr->ifi_type = dev->type;
362 hdr->ifi_index = dev->ifindex;
363 hdr->ifi_flags = dev_get_flags(dev);
364 hdr->ifi_change = 0;
11dc1f36 365
2eb812e6
DM		 366 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
367 nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) ||
368 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
369 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
370 (dev->addr_len &&
371 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
a54acb3a
ND		 372 (dev->ifindex != dev_get_iflink(dev) &&
373 nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
2eb812e6 374 goto nla_put_failure;
25c71c75 375
6cbdceeb 376 if (event == RTM_NEWLINK && port) {
25c71c75 377 struct nlattr *nest
378 = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
379
380 if (nest == NULL || br_port_fill_attrs(skb, port) < 0)
381 goto nla_put_failure;
382 nla_nest_end(skb, nest);
383 }
384
6cbdceeb 385 /* Check if the VID information is requested */
36cd0ffb
RP		 386 if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
387 (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
2594e906 388 struct net_bridge_vlan_group *vg;
36cd0ffb
RP		 389 struct nlattr *af;
390 int err;
6cbdceeb 391
e9c953ef
NA		 392 /* RCU needed because of the VLAN locking rules (rcu || rtnl) */
393 rcu_read_lock();
77751ee8 394 if (port)
e9c953ef 395 vg = nbp_vlan_group_rcu(port);
77751ee8 396 else
e9c953ef 397 vg = br_vlan_group_rcu(br);
6cbdceeb 398
e9c953ef
NA		 399 if (!vg || !vg->num_vlans) {
400 rcu_read_unlock();
6cbdceeb 401 goto done;
e9c953ef 402 }
6cbdceeb 403 af = nla_nest_start(skb, IFLA_AF_SPEC);
e9c953ef
NA		 404 if (!af) {
405 rcu_read_unlock();
6cbdceeb 406 goto nla_put_failure;
e9c953ef 407 }
36cd0ffb 408 if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
77751ee8 409 err = br_fill_ifvlaninfo_compressed(skb, vg);
36cd0ffb 410 else
77751ee8 411 err = br_fill_ifvlaninfo(skb, vg);
e9c953ef 412 rcu_read_unlock();
36cd0ffb
RP		 413 if (err)
414 goto nla_put_failure;
6cbdceeb
VY		 415 nla_nest_end(skb, af);
416 }
417
418done:
053c095a
JB		 419 nlmsg_end(skb, nlh);
420 return 0;
11dc1f36 421
74685962 422nla_put_failure:
26932566
PM		 423 nlmsg_cancel(skb, nlh);
424 return -EMSGSIZE;
11dc1f36
SH		 425}
426
427/*
428 * Notify listeners of a change in port information
429 */
430void br_ifinfo_notify(int event, struct net_bridge_port *port)
431{
407af329 432 struct net *net;
11dc1f36 433 struct sk_buff *skb;
280a306c 434 int err = -ENOBUFS;
fed0a159 435 u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
11dc1f36 436
407af329
VY		 437 if (!port)
438 return;
439
440 net = dev_net(port->dev);
28a16c97 441 br_debug(port->br, "port %u(%s) event %d\n",
95c96174 442 (unsigned int)port->port_no, port->dev->name, event);
28a16c97 443
fed0a159 444 skb = nlmsg_new(br_nlmsg_size(port->dev, filter), GFP_ATOMIC);
280a306c
TG		 445 if (skb == NULL)
446 goto errout;
447
fed0a159 448 err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, port->dev);
26932566
PM		 449 if (err < 0) {
450 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
451 WARN_ON(err == -EMSGSIZE);
452 kfree_skb(skb);
453 goto errout;
454 }
1ce85fe4
PNA		 455 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
456 return;
280a306c 457errout:
87e823b3 458 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
11dc1f36
SH		 459}
460
407af329 461
11dc1f36
SH		 462/*
463 * Dump information about all ports, in response to GETLINK
464 */
e5a55a89 465int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
46c264da 466 struct net_device *dev, u32 filter_mask, int nlflags)
11dc1f36 467{
1fb1754a 468 struct net_bridge_port *port = br_port_get_rtnl(dev);
e5a55a89 469
36cd0ffb
RP		 470 if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
471 !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
1b846f92 472 return 0;
11dc1f36 473
46c264da 474 return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
1b846f92 475 filter_mask, dev);
11dc1f36
SH		 476}
477
bdced7ef
RP		 478static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
479 int cmd, struct bridge_vlan_info *vinfo)
480{
481 int err = 0;
482
483 switch (cmd) {
484 case RTM_SETLINK:
485 if (p) {
2594e906
NA		 486 /* if the MASTER flag is set this will act on the global
487 * per-VLAN entry as well
488 */
bdced7ef
RP		 489 err = nbp_vlan_add(p, vinfo->vid, vinfo->flags);
490 if (err)
491 break;
bdced7ef 492 } else {
2594e906 493 vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY;
bdced7ef
RP		 494 err = br_vlan_add(br, vinfo->vid, vinfo->flags);
495 }
496 break;
497
498 case RTM_DELLINK:
499 if (p) {
500 nbp_vlan_delete(p, vinfo->vid);
501 if (vinfo->flags & BRIDGE_VLAN_INFO_MASTER)
502 br_vlan_delete(p->br, vinfo->vid);
503 } else {
504 br_vlan_delete(br, vinfo->vid);
505 }
506 break;
507 }
508
509 return err;
510}
407af329
VY		 511
512static int br_afspec(struct net_bridge *br,
513 struct net_bridge_port *p,
514 struct nlattr *af_spec,
515 int cmd)
516{
bdced7ef
RP		 517 struct bridge_vlan_info *vinfo_start = NULL;
518 struct bridge_vlan_info *vinfo = NULL;
519 struct nlattr *attr;
407af329 520 int err = 0;
bdced7ef 521 int rem;
407af329 522
bdced7ef
RP		 523 nla_for_each_nested(attr, af_spec, rem) {
524 if (nla_type(attr) != IFLA_BRIDGE_VLAN_INFO)
525 continue;
526 if (nla_len(attr) != sizeof(struct bridge_vlan_info))
527 return -EINVAL;
528 vinfo = nla_data(attr);
462e1ead
NA		 529 if (!vinfo->vid || vinfo->vid >= VLAN_VID_MASK)
530 return -EINVAL;
bdced7ef
RP		 531 if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
532 if (vinfo_start)
533 return -EINVAL;
534 vinfo_start = vinfo;
6623c60d
NA		 535 /* don't allow range of pvids */
536 if (vinfo_start->flags & BRIDGE_VLAN_INFO_PVID)
537 return -EINVAL;
bdced7ef
RP		 538 continue;
539 }
407af329 540
bdced7ef
RP		 541 if (vinfo_start) {
542 struct bridge_vlan_info tmp_vinfo;
543 int v;
407af329 544
bdced7ef
RP		 545 if (!(vinfo->flags & BRIDGE_VLAN_INFO_RANGE_END))
546 return -EINVAL;
407af329 547
bdced7ef
RP		 548 if (vinfo->vid <= vinfo_start->vid)
549 return -EINVAL;
550
551 memcpy(&tmp_vinfo, vinfo_start,
552 sizeof(struct bridge_vlan_info));
407af329 553
bdced7ef
RP		 554 for (v = vinfo_start->vid; v <= vinfo->vid; v++) {
555 tmp_vinfo.vid = v;
556 err = br_vlan_info(br, p, cmd, &tmp_vinfo);
407af329
VY		 557 if (err)
558 break;
bdced7ef
RP		 559 }
560 vinfo_start = NULL;
561 } else {
562 err = br_vlan_info(br, p, cmd, vinfo);
407af329 563 }
bdced7ef
RP		 564 if (err)
565 break;
407af329
VY		 566 }
567
568 return err;
569}
570
3ac636b8 571static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
25c71c75 572 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
573 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
574 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
575 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
a2e01a65 576 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
1007dd1a 577 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
6f705d8c 578 [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 },
9ba18891 579 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
867a5943 580 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
355b9f9d 581 [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 },
786c2077 582 [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },
5d6ae479 583 [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },
25c71c75 584};
585
586/* Change the state of the port and notify spanning tree */
587static int br_set_port_state(struct net_bridge_port *p, u8 state)
588{
589 if (state > BR_STATE_BLOCKING)
590 return -EINVAL;
591
592 /* if kernel STP is running, don't allow changes */
593 if (p->br->stp_enabled == BR_KERNEL_STP)
594 return -EBUSY;
595
576eb625 596 /* if device is not up, change is not allowed
597 * if link is not present, only allowable state is disabled
598 */
25c71c75 599 if (!netif_running(p->dev) ||
576eb625 600 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
25c71c75 601 return -ENETDOWN;
602
775dd692 603 br_set_state(p, state);
25c71c75 604 br_port_state_selection(p->br);
605 return 0;
606}
607
608/* Set/clear or port flags based on attribute */
609static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
610 int attrtype, unsigned long mask)
611{
612 if (tb[attrtype]) {
613 u8 flag = nla_get_u8(tb[attrtype]);
614 if (flag)
615 p->flags |= mask;
616 else
617 p->flags &= ~mask;
618 }
619}
620
621/* Process bridge protocol info on port */
622static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
623{
624 int err;
e028e4b8 625 unsigned long old_flags = p->flags;
25c71c75 626
627 br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
a2e01a65 628 br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
c2d3babf 629 br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
3d84fa98 630 br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
9ba18891 631 br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
867a5943 632 br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
95850116 633 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
842a9ae0 634 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
25c71c75 635
636 if (tb[IFLA_BRPORT_COST]) {
637 err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
638 if (err)
639 return err;
640 }
641
642 if (tb[IFLA_BRPORT_PRIORITY]) {
643 err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
644 if (err)
645 return err;
646 }
647
648 if (tb[IFLA_BRPORT_STATE]) {
649 err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
650 if (err)
651 return err;
652 }
e028e4b8 653
9b0c6e4d
NA		 654 if (tb[IFLA_BRPORT_FLUSH])
655 br_fdb_delete_by_port(p->br, p, 0, 0);
656
5d6ae479
NA		 657#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
658 if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {
659 u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);
660
661 err = br_multicast_set_port_router(p, mcast_router);
662 if (err)
663 return err;
664 }
665#endif
e028e4b8 666 br_port_flags_change(p, old_flags ^ p->flags);
25c71c75 667 return 0;
668}
669
670/* Change state and parameters on port. */
add511b3 671int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
11dc1f36 672{
74685962 673 struct nlattr *protinfo;
407af329 674 struct nlattr *afspec;
11dc1f36 675 struct net_bridge_port *p;
2062cc20 676 struct nlattr *tb[IFLA_BRPORT_MAX + 1];
41c498b9 677 int err = 0;
11dc1f36 678
c60ee67f
H		 679 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO);
680 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329 681 if (!protinfo && !afspec)
25c71c75 682 return 0;
11dc1f36 683
ec1e5610 684 p = br_port_get_rtnl(dev);
407af329 685 /* We want to accept dev as bridge itself if the AF_SPEC
8e3bff96 686 * is set to see if someone is setting vlan info on the bridge
407af329 687 */
7b99a993 688 if (!p && !afspec)
b5ed54e9 689 return -EINVAL;
11dc1f36 690
407af329
VY		 691 if (p && protinfo) {
692 if (protinfo->nla_type & NLA_F_NESTED) {
693 err = nla_parse_nested(tb, IFLA_BRPORT_MAX,
3ac636b8 694 protinfo, br_port_policy);
407af329
VY		 695 if (err)
696 return err;
697
698 spin_lock_bh(&p->br->lock);
699 err = br_setport(p, tb);
700 spin_unlock_bh(&p->br->lock);
701 } else {
8e3bff96 702 /* Binary compatibility with old RSTP */
407af329
VY		 703 if (nla_len(protinfo) < sizeof(u8))
704 return -EINVAL;
705
706 spin_lock_bh(&p->br->lock);
707 err = br_set_port_state(p, nla_get_u8(protinfo));
708 spin_unlock_bh(&p->br->lock);
709 }
25c71c75 710 if (err)
407af329
VY		 711 goto out;
712 }
11dc1f36 713
407af329
VY		 714 if (afspec) {
715 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
716 afspec, RTM_SETLINK);
25c71c75 717 }
b03b6dd5 718
25c71c75 719 if (err == 0)
720 br_ifinfo_notify(RTM_NEWLINK, p);
407af329 721out:
25c71c75 722 return err;
11dc1f36
SH		 723}
724
407af329 725/* Delete port information */
add511b3 726int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
407af329 727{
407af329
VY		 728 struct nlattr *afspec;
729 struct net_bridge_port *p;
8508025c 730 int err = 0;
407af329 731
c60ee67f 732 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329
VY		 733 if (!afspec)
734 return 0;
735
736 p = br_port_get_rtnl(dev);
737 /* We want to accept dev as bridge itself as well */
738 if (!p && !(dev->priv_flags & IFF_EBRIDGE))
739 return -EINVAL;
740
741 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
742 afspec, RTM_DELLINK);
02dba438
RP		 743 if (err == 0)
744 /* Send RTM_NEWLINK because userspace
745 * expects RTM_NEWLINK for vlan dels
746 */
747 br_ifinfo_notify(RTM_NEWLINK, p);
407af329
VY		 748
749 return err;
750}
bb900b27 751static int br_validate(struct nlattr *tb[], struct nlattr *data[])
752{
753 if (tb[IFLA_ADDRESS]) {
754 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
755 return -EINVAL;
756 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
757 return -EADDRNOTAVAIL;
758 }
759
d2d427b3
TM		 760 if (!data)
761 return 0;
762
763#ifdef CONFIG_BRIDGE_VLAN_FILTERING
764 if (data[IFLA_BR_VLAN_PROTOCOL]) {
765 switch (nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])) {
766 case htons(ETH_P_8021Q):
767 case htons(ETH_P_8021AD):
768 break;
769 default:
770 return -EPROTONOSUPPORT;
771 }
772 }
773#endif
774
bb900b27 775 return 0;
776}
777
30313a3d
TM		 778static int br_dev_newlink(struct net *src_net, struct net_device *dev,
779 struct nlattr *tb[], struct nlattr *data[])
780{
781 struct net_bridge *br = netdev_priv(dev);
782
783 if (tb[IFLA_ADDRESS]) {
784 spin_lock_bh(&br->lock);
785 br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
786 spin_unlock_bh(&br->lock);
787 }
788
789 return register_netdevice(dev);
790}
791
3ac636b8
JP		 792static int br_port_slave_changelink(struct net_device *brdev,
793 struct net_device *dev,
794 struct nlattr *tb[],
795 struct nlattr *data[])
796{
963ad948
NA		 797 struct net_bridge *br = netdev_priv(brdev);
798 int ret;
799
3ac636b8
JP		 800 if (!data)
801 return 0;
963ad948
NA		 802
803 spin_lock_bh(&br->lock);
804 ret = br_setport(br_port_get_rtnl(dev), data);
805 spin_unlock_bh(&br->lock);
806
807 return ret;
3ac636b8
JP		 808}
809
ced8283f
JP		 810static int br_port_fill_slave_info(struct sk_buff *skb,
811 const struct net_device *brdev,
812 const struct net_device *dev)
813{
814 return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
815}
816
817static size_t br_port_get_slave_size(const struct net_device *brdev,
818 const struct net_device *dev)
819{
820 return br_port_info_size();
821}
822
13323516
JP		 823static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
824 [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
825 [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
826 [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
af615762
JT		 827 [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
828 [IFLA_BR_STP_STATE] = { .type = NLA_U32 },
829 [IFLA_BR_PRIORITY] = { .type = NLA_U16 },
a7854037 830 [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
d2d427b3 831 [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
7910228b 832 [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
111189ab
NA		 833 [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
834 .len = ETH_ALEN },
a9a6bc70 835 [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
89126327 836 [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
295141d9 837 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
ba062d7c 838 [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
431db3c0 839 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
858079fd 840 [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
79b859f5 841 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
b89e6bab 842 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
7e4df51e
NA		 843 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
844 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
845 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
846 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
847 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
848 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
93870cc0
NA		 849 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 },
850 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 },
851 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 },
0f963b75 852 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 },
6dada9b1 853 [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 },
1080ab95 854 [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 },
13323516
JP		 855};
856
857static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
858 struct nlattr *data[])
859{
860 struct net_bridge *br = netdev_priv(brdev);
861 int err;
862
863 if (!data)
864 return 0;
865
866 if (data[IFLA_BR_FORWARD_DELAY]) {
867 err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
868 if (err)
869 return err;
870 }
871
872 if (data[IFLA_BR_HELLO_TIME]) {
873 err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
874 if (err)
875 return err;
876 }
877
878 if (data[IFLA_BR_MAX_AGE]) {
879 err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
880 if (err)
881 return err;
882 }
883
af615762 884 if (data[IFLA_BR_AGEING_TIME]) {
c62987bb
SF		 885 err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
886 if (err)
887 return err;
af615762
JT		 888 }
889
890 if (data[IFLA_BR_STP_STATE]) {
891 u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
892
893 br_stp_set_enabled(br, stp_enabled);
894 }
895
896 if (data[IFLA_BR_PRIORITY]) {
897 u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]);
898
899 br_stp_set_bridge_priority(br, priority);
900 }
901
a7854037
NA		 902 if (data[IFLA_BR_VLAN_FILTERING]) {
903 u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
904
905 err = __br_vlan_filter_toggle(br, vlan_filter);
906 if (err)
907 return err;
908 }
909
d2d427b3
TM		 910#ifdef CONFIG_BRIDGE_VLAN_FILTERING
911 if (data[IFLA_BR_VLAN_PROTOCOL]) {
912 __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]);
913
914 err = __br_vlan_set_proto(br, vlan_proto);
915 if (err)
916 return err;
917 }
0f963b75
NA		 918
919 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
920 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
921
922 err = __br_vlan_set_default_pvid(br, defpvid);
923 if (err)
924 return err;
925 }
6dada9b1
NA		 926
927 if (data[IFLA_BR_VLAN_STATS_ENABLED]) {
928 __u8 vlan_stats = nla_get_u8(data[IFLA_BR_VLAN_STATS_ENABLED]);
929
930 err = br_vlan_set_stats(br, vlan_stats);
931 if (err)
932 return err;
933 }
d2d427b3
TM		 934#endif
935
7910228b
NA		 936 if (data[IFLA_BR_GROUP_FWD_MASK]) {
937 u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);
938
939 if (fwd_mask & BR_GROUPFWD_RESTRICTED)
940 return -EINVAL;
941 br->group_fwd_mask = fwd_mask;
942 }
943
111189ab
NA		 944 if (data[IFLA_BR_GROUP_ADDR]) {
945 u8 new_addr[ETH_ALEN];
946
947 if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
948 return -EINVAL;
949 memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
950 if (!is_link_local_ether_addr(new_addr))
951 return -EINVAL;
952 if (new_addr[5] == 1 || /* 802.3x Pause address */
953 new_addr[5] == 2 || /* 802.3ad Slow protocols */
954 new_addr[5] == 3) /* 802.1X PAE address */
955 return -EINVAL;
956 spin_lock_bh(&br->lock);
957 memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
958 spin_unlock_bh(&br->lock);
959 br->group_addr_set = true;
960 br_recalculate_fwd_mask(br);
961 }
962
150217c6
NA		 963 if (data[IFLA_BR_FDB_FLUSH])
964 br_fdb_flush(br);
965
a9a6bc70
NA		 966#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
967 if (data[IFLA_BR_MCAST_ROUTER]) {
968 u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]);
969
970 err = br_multicast_set_router(br, multicast_router);
971 if (err)
972 return err;
973 }
89126327
NA		 974
975 if (data[IFLA_BR_MCAST_SNOOPING]) {
976 u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
977
978 err = br_multicast_toggle(br, mcast_snooping);
979 if (err)
980 return err;
981 }
295141d9
NA		 982
983 if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {
984 u8 val;
985
986 val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
987 br->multicast_query_use_ifaddr = !!val;
988 }
ba062d7c
NA		 989
990 if (data[IFLA_BR_MCAST_QUERIER]) {
991 u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
992
993 err = br_multicast_set_querier(br, mcast_querier);
994 if (err)
995 return err;
996 }
431db3c0
NA		 997
998 if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) {
999 u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]);
1000
1001 br->hash_elasticity = val;
1002 }
858079fd
NA		 1003
1004 if (data[IFLA_BR_MCAST_HASH_MAX]) {
1005 u32 hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]);
1006
1007 err = br_multicast_set_hash_max(br, hash_max);
1008 if (err)
1009 return err;
1010 }
79b859f5
NA		 1011
1012 if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
1013 u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
1014
1015 br->multicast_last_member_count = val;
1016 }
b89e6bab
NA		 1017
1018 if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
1019 u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
1020
1021 br->multicast_startup_query_count = val;
1022 }
7e4df51e
NA		 1023
1024 if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
1025 u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
1026
1027 br->multicast_last_member_interval = clock_t_to_jiffies(val);
1028 }
1029
1030 if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
1031 u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
1032
1033 br->multicast_membership_interval = clock_t_to_jiffies(val);
1034 }
1035
1036 if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
1037 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
1038
1039 br->multicast_querier_interval = clock_t_to_jiffies(val);
1040 }
1041
1042 if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
1043 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
1044
1045 br->multicast_query_interval = clock_t_to_jiffies(val);
1046 }
1047
1048 if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
1049 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
1050
1051 br->multicast_query_response_interval = clock_t_to_jiffies(val);
1052 }
1053
1054 if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
1055 u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
1056
1057 br->multicast_startup_query_interval = clock_t_to_jiffies(val);
1058 }
1080ab95
NA		 1059
1060 if (data[IFLA_BR_MCAST_STATS_ENABLED]) {
1061 __u8 mcast_stats;
1062
1063 mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]);
1064 br->multicast_stats_enabled = !!mcast_stats;
1065 }
a9a6bc70 1066#endif
93870cc0
NA		 1067#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1068 if (data[IFLA_BR_NF_CALL_IPTABLES]) {
1069 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]);
1070
1071 br->nf_call_iptables = val ? true : false;
1072 }
1073
1074 if (data[IFLA_BR_NF_CALL_IP6TABLES]) {
1075 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]);
1076
1077 br->nf_call_ip6tables = val ? true : false;
1078 }
1079
1080 if (data[IFLA_BR_NF_CALL_ARPTABLES]) {
1081 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]);
1082
1083 br->nf_call_arptables = val ? true : false;
1084 }
1085#endif
a9a6bc70 1086
13323516
JP		 1087 return 0;
1088}
1089
e5c3ea5c
JP		 1090static size_t br_get_size(const struct net_device *brdev)
1091{
1092 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1093 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1094 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
af615762
JT		 1095 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1096 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1097 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
a7854037 1098 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
d2d427b3
TM		 1099#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1100 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
0f963b75 1101 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
6dada9b1 1102 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */
d2d427b3 1103#endif
7910228b 1104 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
5127c81f 1105 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
7599a220 1106 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
8762ba68 1107 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
684dd248 1108 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
b89e6bab
NA		 1109 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1110 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
12a0faa3
ND		 1111 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1112 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1113 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1114 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
111189ab 1115 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
a9a6bc70
NA		 1116#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1117 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
89126327 1118 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
295141d9 1119 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
ba062d7c 1120 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
1080ab95 1121 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */
b89e6bab
NA		 1122 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1123 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1124 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1125 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
12a0faa3
ND		 1126 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1127 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1128 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1129 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1130 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1131 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
93870cc0
NA		 1132#endif
1133#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1134 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1135 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1136 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
a9a6bc70 1137#endif
e5c3ea5c
JP		 1138 0;
1139}
1140
1141static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1142{
1143 struct net_bridge *br = netdev_priv(brdev);
1144 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1145 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1146 u32 age_time = jiffies_to_clock_t(br->max_age);
af615762
JT		 1147 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1148 u32 stp_enabled = br->stp_enabled;
1149 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
a7854037 1150 u8 vlan_enabled = br_vlan_enabled(br);
4917a154
NA		 1151 u64 clockval;
1152
1153 clockval = br_timer_value(&br->hello_timer);
12a0faa3 1154 if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1155 return -EMSGSIZE;
1156 clockval = br_timer_value(&br->tcn_timer);
12a0faa3 1157 if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1158 return -EMSGSIZE;
1159 clockval = br_timer_value(&br->topology_change_timer);
12a0faa3
ND		 1160 if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval,
1161 IFLA_BR_PAD))
4917a154
NA		 1162 return -EMSGSIZE;
1163 clockval = br_timer_value(&br->gc_timer);
12a0faa3 1164 if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD))
4917a154 1165 return -EMSGSIZE;
e5c3ea5c
JP		 1166
1167 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1168 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
af615762
JT		 1169 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1170 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1171 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
a7854037 1172 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
7910228b 1173 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
4917a154
NA		 1174 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1175 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1176 &br->bridge_id) ||
1177 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1178 &br->designated_root) ||
684dd248 1179 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
ed416309
NA		 1180 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1181 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1182 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
d76bd14e 1183 br->topology_change_detected) ||
111189ab 1184 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr))
e5c3ea5c
JP		 1185 return -EMSGSIZE;
1186
d2d427b3 1187#ifdef CONFIG_BRIDGE_VLAN_FILTERING
0f963b75 1188 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
6dada9b1
NA		 1189 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) ||
1190 nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED, br->vlan_stats_enabled))
d2d427b3
TM		 1191 return -EMSGSIZE;
1192#endif
a9a6bc70 1193#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
89126327 1194 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
295141d9
NA		 1195 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||
1196 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
ba062d7c 1197 br->multicast_query_use_ifaddr) ||
431db3c0 1198 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||
1080ab95
NA		 1199 nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED,
1200 br->multicast_stats_enabled) ||
431db3c0 1201 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,
858079fd 1202 br->hash_elasticity) ||
79b859f5
NA		 1203 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1204 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
b89e6bab
NA		 1205 br->multicast_last_member_count) ||
1206 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
1207 br->multicast_startup_query_count))
a9a6bc70 1208 return -EMSGSIZE;
7e4df51e
NA		 1209
1210 clockval = jiffies_to_clock_t(br->multicast_last_member_interval);
12a0faa3
ND		 1211 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval,
1212 IFLA_BR_PAD))
7e4df51e
NA		 1213 return -EMSGSIZE;
1214 clockval = jiffies_to_clock_t(br->multicast_membership_interval);
12a0faa3
ND		 1215 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval,
1216 IFLA_BR_PAD))
7e4df51e
NA		 1217 return -EMSGSIZE;
1218 clockval = jiffies_to_clock_t(br->multicast_querier_interval);
12a0faa3
ND		 1219 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval,
1220 IFLA_BR_PAD))
7e4df51e
NA		 1221 return -EMSGSIZE;
1222 clockval = jiffies_to_clock_t(br->multicast_query_interval);
12a0faa3
ND		 1223 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval,
1224 IFLA_BR_PAD))
7e4df51e
NA		 1225 return -EMSGSIZE;
1226 clockval = jiffies_to_clock_t(br->multicast_query_response_interval);
12a0faa3
ND		 1227 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval,
1228 IFLA_BR_PAD))
7e4df51e
NA		 1229 return -EMSGSIZE;
1230 clockval = jiffies_to_clock_t(br->multicast_startup_query_interval);
12a0faa3
ND		 1231 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval,
1232 IFLA_BR_PAD))
7e4df51e 1233 return -EMSGSIZE;
a9a6bc70 1234#endif
93870cc0
NA		 1235#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1236 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
1237 br->nf_call_iptables ? 1 : 0) ||
1238 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
1239 br->nf_call_ip6tables ? 1 : 0) ||
1240 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
1241 br->nf_call_arptables ? 1 : 0))
1242 return -EMSGSIZE;
1243#endif
a9a6bc70 1244
e5c3ea5c
JP		 1245 return 0;
1246}
1247
d5ff8c41 1248static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
a60c0903 1249{
d5ff8c41 1250 struct net_bridge_port *p = NULL;
a60c0903
NA		 1251 struct net_bridge_vlan_group *vg;
1252 struct net_bridge_vlan *v;
d5ff8c41 1253 struct net_bridge *br;
a60c0903
NA		 1254 int numvls = 0;
1255
d5ff8c41
NA		 1256 switch (attr) {
1257 case IFLA_STATS_LINK_XSTATS:
1258 br = netdev_priv(dev);
1259 vg = br_vlan_group(br);
1260 break;
1261 case IFLA_STATS_LINK_XSTATS_SLAVE:
1262 p = br_port_get_rtnl(dev);
1263 if (!p)
1264 return 0;
1265 br = p->br;
1266 vg = nbp_vlan_group(p);
1267 break;
1268 default:
1269 return 0;
1270 }
1271
1080ab95
NA		 1272 if (vg) {
1273 /* we need to count all, even placeholder entries */
1274 list_for_each_entry(v, &vg->vlan_list, vlist)
1275 numvls++;
1276 }
a60c0903 1277
a60c0903 1278 return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
1080ab95 1279 nla_total_size(sizeof(struct br_mcast_stats)) +
a60c0903
NA		 1280 nla_total_size(0);
1281}
1282
d5ff8c41
NA		 1283static int br_fill_linkxstats(struct sk_buff *skb,
1284 const struct net_device *dev,
1285 int *prividx, int attr)
80e73cc5 1286{
d5ff8c41
NA		 1287 struct nlattr *nla __maybe_unused;
1288 struct net_bridge_port *p = NULL;
1289 struct net_bridge_vlan_group *vg;
1290 struct net_bridge_vlan *v;
1291 struct net_bridge *br;
1292 struct nlattr *nest;
1293 int vl_idx = 0;
80e73cc5
NA		 1294
1295 switch (attr) {
1296 case IFLA_STATS_LINK_XSTATS:
d5ff8c41
NA		 1297 br = netdev_priv(dev);
1298 vg = br_vlan_group(br);
80e73cc5
NA		 1299 break;
1300 case IFLA_STATS_LINK_XSTATS_SLAVE:
d5ff8c41
NA		 1301 p = br_port_get_rtnl(dev);
1302 if (!p)
1303 return 0;
1304 br = p->br;
1305 vg = nbp_vlan_group(p);
80e73cc5 1306 break;
d5ff8c41
NA		 1307 default:
1308 return -EINVAL;
80e73cc5
NA		 1309 }
1310
a60c0903
NA		 1311 nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE);
1312 if (!nest)
1313 return -EMSGSIZE;
a60c0903 1314
1080ab95
NA		 1315 if (vg) {
1316 list_for_each_entry(v, &vg->vlan_list, vlist) {
1317 struct bridge_vlan_xstats vxi;
1318 struct br_vlan_stats stats;
1319
1320 if (++vl_idx < *prividx)
1321 continue;
1322 memset(&vxi, 0, sizeof(vxi));
1323 vxi.vid = v->vid;
61ba1a2d 1324 vxi.flags = v->flags;
1080ab95
NA		 1325 br_vlan_get_stats(v, &stats);
1326 vxi.rx_bytes = stats.rx_bytes;
1327 vxi.rx_packets = stats.rx_packets;
1328 vxi.tx_bytes = stats.tx_bytes;
1329 vxi.tx_packets = stats.tx_packets;
1330
1331 if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi))
1332 goto nla_put_failure;
1333 }
1334 }
1335
1336#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1337 if (++vl_idx >= *prividx) {
1338 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST,
1339 sizeof(struct br_mcast_stats),
1340 BRIDGE_XSTATS_PAD);
1341 if (!nla)
a60c0903 1342 goto nla_put_failure;
d5ff8c41 1343 br_multicast_get_stats(br, p, nla_data(nla));
a60c0903 1344 }
1080ab95 1345#endif
a60c0903
NA		 1346 nla_nest_end(skb, nest);
1347 *prividx = 0;
1080ab95 1348
a60c0903
NA		 1349 return 0;
1350
1351nla_put_failure:
1352 nla_nest_end(skb, nest);
1353 *prividx = vl_idx;
1354
1355 return -EMSGSIZE;
1356}
fed0a159 1357
207895fd 1358static struct rtnl_af_ops br_af_ops __read_mostly = {
6cbdceeb 1359 .family = AF_BRIDGE,
b1974ed0 1360 .get_link_af_size = br_get_link_af_size_filtered,
6cbdceeb
VY		 1361};
1362
149ddd83 1363struct rtnl_link_ops br_link_ops __read_mostly = {
ced8283f
JP		 1364 .kind = "bridge",
1365 .priv_size = sizeof(struct net_bridge),
1366 .setup = br_dev_setup,
eb4cb851 1367 .maxtype = IFLA_BR_MAX,
13323516 1368 .policy = br_policy,
ced8283f
JP		 1369 .validate = br_validate,
1370 .newlink = br_dev_newlink,
13323516 1371 .changelink = br_changelink,
ced8283f 1372 .dellink = br_dev_delete,
e5c3ea5c
JP		 1373 .get_size = br_get_size,
1374 .fill_info = br_fill_info,
a60c0903
NA		 1375 .fill_linkxstats = br_fill_linkxstats,
1376 .get_linkxstats_size = br_get_linkxstats_size,
3ac636b8
JP		 1377
1378 .slave_maxtype = IFLA_BRPORT_MAX,
1379 .slave_policy = br_port_policy,
1380 .slave_changelink = br_port_slave_changelink,
ced8283f
JP		 1381 .get_slave_size = br_port_get_slave_size,
1382 .fill_slave_info = br_port_fill_slave_info,
bb900b27 1383};
11dc1f36 1384
32fe21c0 1385int __init br_netlink_init(void)
11dc1f36 1386{
3ec8e9f0
VY		 1387 int err;
1388
1389 br_mdb_init();
3678a9d8 1390 rtnl_af_register(&br_af_ops);
3ec8e9f0 1391
6cbdceeb
VY		 1392 err = rtnl_link_register(&br_link_ops);
1393 if (err)
1394 goto out_af;
1395
3ec8e9f0 1396 return 0;
6cbdceeb
VY		 1397
1398out_af:
1399 rtnl_af_unregister(&br_af_ops);
3ec8e9f0
VY		 1400 br_mdb_uninit();
1401 return err;
11dc1f36
SH		 1402}
1403
34666d46 1404void br_netlink_fini(void)
11dc1f36 1405{
3ec8e9f0 1406 br_mdb_uninit();
6cbdceeb 1407 rtnl_af_unregister(&br_af_ops);
bb900b27 1408 rtnl_link_unregister(&br_link_ops);
11dc1f36 1409}
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