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Merge tag 'vfio-v4.5-rc7' of git://github.com/awilliam/linux-vfio
[deliverable/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 */
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);
e9c953ef 256 list_for_each_entry_rcu(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);
e9c953ef 306 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
2594e906
NA		 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
e9c953ef
NA		 389 /* RCU needed because of the VLAN locking rules (rcu || rtnl) */
390 rcu_read_lock();
77751ee8 391 if (port)
e9c953ef 392 vg = nbp_vlan_group_rcu(port);
77751ee8 393 else
e9c953ef 394 vg = br_vlan_group_rcu(br);
6cbdceeb 395
e9c953ef
NA		 396 if (!vg || !vg->num_vlans) {
397 rcu_read_unlock();
6cbdceeb 398 goto done;
e9c953ef 399 }
6cbdceeb 400 af = nla_nest_start(skb, IFLA_AF_SPEC);
e9c953ef
NA		 401 if (!af) {
402 rcu_read_unlock();
6cbdceeb 403 goto nla_put_failure;
e9c953ef 404 }
36cd0ffb 405 if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
77751ee8 406 err = br_fill_ifvlaninfo_compressed(skb, vg);
36cd0ffb 407 else
77751ee8 408 err = br_fill_ifvlaninfo(skb, vg);
e9c953ef 409 rcu_read_unlock();
36cd0ffb
RP		 410 if (err)
411 goto nla_put_failure;
6cbdceeb
VY		 412 nla_nest_end(skb, af);
413 }
414
415done:
053c095a
JB		 416 nlmsg_end(skb, nlh);
417 return 0;
11dc1f36 418
74685962 419nla_put_failure:
26932566
PM		 420 nlmsg_cancel(skb, nlh);
421 return -EMSGSIZE;
11dc1f36
SH		 422}
423
424/*
425 * Notify listeners of a change in port information
426 */
427void br_ifinfo_notify(int event, struct net_bridge_port *port)
428{
407af329 429 struct net *net;
11dc1f36 430 struct sk_buff *skb;
280a306c 431 int err = -ENOBUFS;
fed0a159 432 u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
11dc1f36 433
407af329
VY		 434 if (!port)
435 return;
436
437 net = dev_net(port->dev);
28a16c97 438 br_debug(port->br, "port %u(%s) event %d\n",
95c96174 439 (unsigned int)port->port_no, port->dev->name, event);
28a16c97 440
fed0a159 441 skb = nlmsg_new(br_nlmsg_size(port->dev, filter), GFP_ATOMIC);
280a306c
TG		 442 if (skb == NULL)
443 goto errout;
444
fed0a159 445 err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, port->dev);
26932566
PM		 446 if (err < 0) {
447 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
448 WARN_ON(err == -EMSGSIZE);
449 kfree_skb(skb);
450 goto errout;
451 }
1ce85fe4
PNA		 452 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
453 return;
280a306c 454errout:
87e823b3 455 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
11dc1f36
SH		 456}
457
407af329 458
11dc1f36
SH		 459/*
460 * Dump information about all ports, in response to GETLINK
461 */
e5a55a89 462int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
46c264da 463 struct net_device *dev, u32 filter_mask, int nlflags)
11dc1f36 464{
1fb1754a 465 struct net_bridge_port *port = br_port_get_rtnl(dev);
e5a55a89 466
36cd0ffb
RP		 467 if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
468 !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
1b846f92 469 return 0;
11dc1f36 470
46c264da 471 return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
1b846f92 472 filter_mask, dev);
11dc1f36
SH		 473}
474
bdced7ef
RP		 475static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
476 int cmd, struct bridge_vlan_info *vinfo)
477{
478 int err = 0;
479
480 switch (cmd) {
481 case RTM_SETLINK:
482 if (p) {
2594e906
NA		 483 /* if the MASTER flag is set this will act on the global
484 * per-VLAN entry as well
485 */
bdced7ef
RP		 486 err = nbp_vlan_add(p, vinfo->vid, vinfo->flags);
487 if (err)
488 break;
bdced7ef 489 } else {
2594e906 490 vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY;
bdced7ef
RP		 491 err = br_vlan_add(br, vinfo->vid, vinfo->flags);
492 }
493 break;
494
495 case RTM_DELLINK:
496 if (p) {
497 nbp_vlan_delete(p, vinfo->vid);
498 if (vinfo->flags & BRIDGE_VLAN_INFO_MASTER)
499 br_vlan_delete(p->br, vinfo->vid);
500 } else {
501 br_vlan_delete(br, vinfo->vid);
502 }
503 break;
504 }
505
506 return err;
507}
407af329
VY		 508
509static int br_afspec(struct net_bridge *br,
510 struct net_bridge_port *p,
511 struct nlattr *af_spec,
512 int cmd)
513{
bdced7ef
RP		 514 struct bridge_vlan_info *vinfo_start = NULL;
515 struct bridge_vlan_info *vinfo = NULL;
516 struct nlattr *attr;
407af329 517 int err = 0;
bdced7ef 518 int rem;
407af329 519
bdced7ef
RP		 520 nla_for_each_nested(attr, af_spec, rem) {
521 if (nla_type(attr) != IFLA_BRIDGE_VLAN_INFO)
522 continue;
523 if (nla_len(attr) != sizeof(struct bridge_vlan_info))
524 return -EINVAL;
525 vinfo = nla_data(attr);
462e1ead
NA		 526 if (!vinfo->vid || vinfo->vid >= VLAN_VID_MASK)
527 return -EINVAL;
bdced7ef
RP		 528 if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
529 if (vinfo_start)
530 return -EINVAL;
531 vinfo_start = vinfo;
6623c60d
NA		 532 /* don't allow range of pvids */
533 if (vinfo_start->flags & BRIDGE_VLAN_INFO_PVID)
534 return -EINVAL;
bdced7ef
RP		 535 continue;
536 }
407af329 537
bdced7ef
RP		 538 if (vinfo_start) {
539 struct bridge_vlan_info tmp_vinfo;
540 int v;
407af329 541
bdced7ef
RP		 542 if (!(vinfo->flags & BRIDGE_VLAN_INFO_RANGE_END))
543 return -EINVAL;
407af329 544
bdced7ef
RP		 545 if (vinfo->vid <= vinfo_start->vid)
546 return -EINVAL;
547
548 memcpy(&tmp_vinfo, vinfo_start,
549 sizeof(struct bridge_vlan_info));
407af329 550
bdced7ef
RP		 551 for (v = vinfo_start->vid; v <= vinfo->vid; v++) {
552 tmp_vinfo.vid = v;
553 err = br_vlan_info(br, p, cmd, &tmp_vinfo);
407af329
VY		 554 if (err)
555 break;
bdced7ef
RP		 556 }
557 vinfo_start = NULL;
558 } else {
559 err = br_vlan_info(br, p, cmd, vinfo);
407af329 560 }
bdced7ef
RP		 561 if (err)
562 break;
407af329
VY		 563 }
564
565 return err;
566}
567
3ac636b8 568static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
25c71c75 569 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
570 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
571 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
572 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
a2e01a65 573 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
1007dd1a 574 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
6f705d8c 575 [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 },
9ba18891 576 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
867a5943 577 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
355b9f9d 578 [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 },
786c2077 579 [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },
5d6ae479 580 [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },
25c71c75 581};
582
583/* Change the state of the port and notify spanning tree */
584static int br_set_port_state(struct net_bridge_port *p, u8 state)
585{
586 if (state > BR_STATE_BLOCKING)
587 return -EINVAL;
588
589 /* if kernel STP is running, don't allow changes */
590 if (p->br->stp_enabled == BR_KERNEL_STP)
591 return -EBUSY;
592
576eb625 593 /* if device is not up, change is not allowed
594 * if link is not present, only allowable state is disabled
595 */
25c71c75 596 if (!netif_running(p->dev) ||
576eb625 597 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
25c71c75 598 return -ENETDOWN;
599
775dd692 600 br_set_state(p, state);
25c71c75 601 br_log_state(p);
602 br_port_state_selection(p->br);
603 return 0;
604}
605
606/* Set/clear or port flags based on attribute */
607static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
608 int attrtype, unsigned long mask)
609{
610 if (tb[attrtype]) {
611 u8 flag = nla_get_u8(tb[attrtype]);
612 if (flag)
613 p->flags |= mask;
614 else
615 p->flags &= ~mask;
616 }
617}
618
619/* Process bridge protocol info on port */
620static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
621{
622 int err;
e028e4b8 623 unsigned long old_flags = p->flags;
25c71c75 624
625 br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
a2e01a65 626 br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
c2d3babf 627 br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
3d84fa98 628 br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
9ba18891 629 br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
867a5943 630 br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
95850116 631 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
842a9ae0 632 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
25c71c75 633
634 if (tb[IFLA_BRPORT_COST]) {
635 err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
636 if (err)
637 return err;
638 }
639
640 if (tb[IFLA_BRPORT_PRIORITY]) {
641 err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
642 if (err)
643 return err;
644 }
645
646 if (tb[IFLA_BRPORT_STATE]) {
647 err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
648 if (err)
649 return err;
650 }
e028e4b8 651
9b0c6e4d
NA		 652 if (tb[IFLA_BRPORT_FLUSH])
653 br_fdb_delete_by_port(p->br, p, 0, 0);
654
5d6ae479
NA		 655#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
656 if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {
657 u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);
658
659 err = br_multicast_set_port_router(p, mcast_router);
660 if (err)
661 return err;
662 }
663#endif
e028e4b8 664 br_port_flags_change(p, old_flags ^ p->flags);
25c71c75 665 return 0;
666}
667
668/* Change state and parameters on port. */
add511b3 669int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
11dc1f36 670{
74685962 671 struct nlattr *protinfo;
407af329 672 struct nlattr *afspec;
11dc1f36 673 struct net_bridge_port *p;
2062cc20 674 struct nlattr *tb[IFLA_BRPORT_MAX + 1];
41c498b9 675 int err = 0;
11dc1f36 676
c60ee67f
H		 677 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO);
678 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329 679 if (!protinfo && !afspec)
25c71c75 680 return 0;
11dc1f36 681
ec1e5610 682 p = br_port_get_rtnl(dev);
407af329 683 /* We want to accept dev as bridge itself if the AF_SPEC
8e3bff96 684 * is set to see if someone is setting vlan info on the bridge
407af329 685 */
7b99a993 686 if (!p && !afspec)
b5ed54e9 687 return -EINVAL;
11dc1f36 688
407af329
VY		 689 if (p && protinfo) {
690 if (protinfo->nla_type & NLA_F_NESTED) {
691 err = nla_parse_nested(tb, IFLA_BRPORT_MAX,
3ac636b8 692 protinfo, br_port_policy);
407af329
VY		 693 if (err)
694 return err;
695
696 spin_lock_bh(&p->br->lock);
697 err = br_setport(p, tb);
698 spin_unlock_bh(&p->br->lock);
699 } else {
8e3bff96 700 /* Binary compatibility with old RSTP */
407af329
VY		 701 if (nla_len(protinfo) < sizeof(u8))
702 return -EINVAL;
703
704 spin_lock_bh(&p->br->lock);
705 err = br_set_port_state(p, nla_get_u8(protinfo));
706 spin_unlock_bh(&p->br->lock);
707 }
25c71c75 708 if (err)
407af329
VY		 709 goto out;
710 }
11dc1f36 711
407af329
VY		 712 if (afspec) {
713 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
714 afspec, RTM_SETLINK);
25c71c75 715 }
b03b6dd5 716
25c71c75 717 if (err == 0)
718 br_ifinfo_notify(RTM_NEWLINK, p);
407af329 719out:
25c71c75 720 return err;
11dc1f36
SH		 721}
722
407af329 723/* Delete port information */
add511b3 724int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
407af329 725{
407af329
VY		 726 struct nlattr *afspec;
727 struct net_bridge_port *p;
8508025c 728 int err = 0;
407af329 729
c60ee67f 730 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329
VY		 731 if (!afspec)
732 return 0;
733
734 p = br_port_get_rtnl(dev);
735 /* We want to accept dev as bridge itself as well */
736 if (!p && !(dev->priv_flags & IFF_EBRIDGE))
737 return -EINVAL;
738
739 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
740 afspec, RTM_DELLINK);
02dba438
RP		 741 if (err == 0)
742 /* Send RTM_NEWLINK because userspace
743 * expects RTM_NEWLINK for vlan dels
744 */
745 br_ifinfo_notify(RTM_NEWLINK, p);
407af329
VY		 746
747 return err;
748}
bb900b27 749static int br_validate(struct nlattr *tb[], struct nlattr *data[])
750{
751 if (tb[IFLA_ADDRESS]) {
752 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
753 return -EINVAL;
754 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
755 return -EADDRNOTAVAIL;
756 }
757
d2d427b3
TM		 758 if (!data)
759 return 0;
760
761#ifdef CONFIG_BRIDGE_VLAN_FILTERING
762 if (data[IFLA_BR_VLAN_PROTOCOL]) {
763 switch (nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])) {
764 case htons(ETH_P_8021Q):
765 case htons(ETH_P_8021AD):
766 break;
767 default:
768 return -EPROTONOSUPPORT;
769 }
770 }
771#endif
772
bb900b27 773 return 0;
774}
775
30313a3d
TM		 776static int br_dev_newlink(struct net *src_net, struct net_device *dev,
777 struct nlattr *tb[], struct nlattr *data[])
778{
779 struct net_bridge *br = netdev_priv(dev);
780
781 if (tb[IFLA_ADDRESS]) {
782 spin_lock_bh(&br->lock);
783 br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
784 spin_unlock_bh(&br->lock);
785 }
786
787 return register_netdevice(dev);
788}
789
3ac636b8
JP		 790static int br_port_slave_changelink(struct net_device *brdev,
791 struct net_device *dev,
792 struct nlattr *tb[],
793 struct nlattr *data[])
794{
963ad948
NA		 795 struct net_bridge *br = netdev_priv(brdev);
796 int ret;
797
3ac636b8
JP		 798 if (!data)
799 return 0;
963ad948
NA		 800
801 spin_lock_bh(&br->lock);
802 ret = br_setport(br_port_get_rtnl(dev), data);
803 spin_unlock_bh(&br->lock);
804
805 return ret;
3ac636b8
JP		 806}
807
ced8283f
JP		 808static int br_port_fill_slave_info(struct sk_buff *skb,
809 const struct net_device *brdev,
810 const struct net_device *dev)
811{
812 return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
813}
814
815static size_t br_port_get_slave_size(const struct net_device *brdev,
816 const struct net_device *dev)
817{
818 return br_port_info_size();
819}
820
13323516
JP		 821static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
822 [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
823 [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
824 [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
af615762
JT		 825 [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
826 [IFLA_BR_STP_STATE] = { .type = NLA_U32 },
827 [IFLA_BR_PRIORITY] = { .type = NLA_U16 },
a7854037 828 [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
d2d427b3 829 [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
7910228b 830 [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
111189ab
NA		 831 [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
832 .len = ETH_ALEN },
a9a6bc70 833 [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
89126327 834 [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
295141d9 835 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
ba062d7c 836 [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
431db3c0 837 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
858079fd 838 [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
79b859f5 839 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
b89e6bab 840 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
7e4df51e
NA		 841 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
842 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
843 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
844 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
845 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
846 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
93870cc0
NA		 847 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 },
848 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 },
849 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 },
0f963b75 850 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 },
13323516
JP		 851};
852
853static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
854 struct nlattr *data[])
855{
856 struct net_bridge *br = netdev_priv(brdev);
857 int err;
858
859 if (!data)
860 return 0;
861
862 if (data[IFLA_BR_FORWARD_DELAY]) {
863 err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
864 if (err)
865 return err;
866 }
867
868 if (data[IFLA_BR_HELLO_TIME]) {
869 err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
870 if (err)
871 return err;
872 }
873
874 if (data[IFLA_BR_MAX_AGE]) {
875 err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
876 if (err)
877 return err;
878 }
879
af615762 880 if (data[IFLA_BR_AGEING_TIME]) {
c62987bb
SF		 881 err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
882 if (err)
883 return err;
af615762
JT		 884 }
885
886 if (data[IFLA_BR_STP_STATE]) {
887 u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
888
889 br_stp_set_enabled(br, stp_enabled);
890 }
891
892 if (data[IFLA_BR_PRIORITY]) {
893 u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]);
894
895 br_stp_set_bridge_priority(br, priority);
896 }
897
a7854037
NA		 898 if (data[IFLA_BR_VLAN_FILTERING]) {
899 u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
900
901 err = __br_vlan_filter_toggle(br, vlan_filter);
902 if (err)
903 return err;
904 }
905
d2d427b3
TM		 906#ifdef CONFIG_BRIDGE_VLAN_FILTERING
907 if (data[IFLA_BR_VLAN_PROTOCOL]) {
908 __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]);
909
910 err = __br_vlan_set_proto(br, vlan_proto);
911 if (err)
912 return err;
913 }
0f963b75
NA		 914
915 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
916 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
917
918 err = __br_vlan_set_default_pvid(br, defpvid);
919 if (err)
920 return err;
921 }
d2d427b3
TM		 922#endif
923
7910228b
NA		 924 if (data[IFLA_BR_GROUP_FWD_MASK]) {
925 u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);
926
927 if (fwd_mask & BR_GROUPFWD_RESTRICTED)
928 return -EINVAL;
929 br->group_fwd_mask = fwd_mask;
930 }
931
111189ab
NA		 932 if (data[IFLA_BR_GROUP_ADDR]) {
933 u8 new_addr[ETH_ALEN];
934
935 if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
936 return -EINVAL;
937 memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
938 if (!is_link_local_ether_addr(new_addr))
939 return -EINVAL;
940 if (new_addr[5] == 1 || /* 802.3x Pause address */
941 new_addr[5] == 2 || /* 802.3ad Slow protocols */
942 new_addr[5] == 3) /* 802.1X PAE address */
943 return -EINVAL;
944 spin_lock_bh(&br->lock);
945 memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
946 spin_unlock_bh(&br->lock);
947 br->group_addr_set = true;
948 br_recalculate_fwd_mask(br);
949 }
950
150217c6
NA		 951 if (data[IFLA_BR_FDB_FLUSH])
952 br_fdb_flush(br);
953
a9a6bc70
NA		 954#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
955 if (data[IFLA_BR_MCAST_ROUTER]) {
956 u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]);
957
958 err = br_multicast_set_router(br, multicast_router);
959 if (err)
960 return err;
961 }
89126327
NA		 962
963 if (data[IFLA_BR_MCAST_SNOOPING]) {
964 u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
965
966 err = br_multicast_toggle(br, mcast_snooping);
967 if (err)
968 return err;
969 }
295141d9
NA		 970
971 if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {
972 u8 val;
973
974 val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
975 br->multicast_query_use_ifaddr = !!val;
976 }
ba062d7c
NA		 977
978 if (data[IFLA_BR_MCAST_QUERIER]) {
979 u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
980
981 err = br_multicast_set_querier(br, mcast_querier);
982 if (err)
983 return err;
984 }
431db3c0
NA		 985
986 if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) {
987 u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]);
988
989 br->hash_elasticity = val;
990 }
858079fd
NA		 991
992 if (data[IFLA_BR_MCAST_HASH_MAX]) {
993 u32 hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]);
994
995 err = br_multicast_set_hash_max(br, hash_max);
996 if (err)
997 return err;
998 }
79b859f5
NA		 999
1000 if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
1001 u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
1002
1003 br->multicast_last_member_count = val;
1004 }
b89e6bab
NA		 1005
1006 if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
1007 u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
1008
1009 br->multicast_startup_query_count = val;
1010 }
7e4df51e
NA		 1011
1012 if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
1013 u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
1014
1015 br->multicast_last_member_interval = clock_t_to_jiffies(val);
1016 }
1017
1018 if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
1019 u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
1020
1021 br->multicast_membership_interval = clock_t_to_jiffies(val);
1022 }
1023
1024 if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
1025 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
1026
1027 br->multicast_querier_interval = clock_t_to_jiffies(val);
1028 }
1029
1030 if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
1031 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
1032
1033 br->multicast_query_interval = clock_t_to_jiffies(val);
1034 }
1035
1036 if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
1037 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
1038
1039 br->multicast_query_response_interval = clock_t_to_jiffies(val);
1040 }
1041
1042 if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
1043 u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
1044
1045 br->multicast_startup_query_interval = clock_t_to_jiffies(val);
1046 }
a9a6bc70 1047#endif
93870cc0
NA		 1048#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1049 if (data[IFLA_BR_NF_CALL_IPTABLES]) {
1050 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]);
1051
1052 br->nf_call_iptables = val ? true : false;
1053 }
1054
1055 if (data[IFLA_BR_NF_CALL_IP6TABLES]) {
1056 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]);
1057
1058 br->nf_call_ip6tables = val ? true : false;
1059 }
1060
1061 if (data[IFLA_BR_NF_CALL_ARPTABLES]) {
1062 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]);
1063
1064 br->nf_call_arptables = val ? true : false;
1065 }
1066#endif
a9a6bc70 1067
13323516
JP		 1068 return 0;
1069}
1070
e5c3ea5c
JP		 1071static size_t br_get_size(const struct net_device *brdev)
1072{
1073 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1074 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1075 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
af615762
JT		 1076 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1077 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1078 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
a7854037 1079 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
d2d427b3
TM		 1080#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1081 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
0f963b75 1082 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
d2d427b3 1083#endif
7910228b 1084 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
5127c81f 1085 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
7599a220 1086 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
8762ba68 1087 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
684dd248 1088 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
b89e6bab
NA		 1089 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1090 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
d76bd14e
NA		 1091 nla_total_size(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1092 nla_total_size(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1093 nla_total_size(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1094 nla_total_size(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
111189ab 1095 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
a9a6bc70
NA		 1096#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1097 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
89126327 1098 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
295141d9 1099 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
ba062d7c 1100 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
b89e6bab
NA		 1101 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1102 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1103 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1104 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
7e4df51e
NA		 1105 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1106 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1107 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1108 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1109 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1110 nla_total_size(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
93870cc0
NA		 1111#endif
1112#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1113 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1114 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1115 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
a9a6bc70 1116#endif
e5c3ea5c
JP		 1117 0;
1118}
1119
1120static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1121{
1122 struct net_bridge *br = netdev_priv(brdev);
1123 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1124 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1125 u32 age_time = jiffies_to_clock_t(br->max_age);
af615762
JT		 1126 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1127 u32 stp_enabled = br->stp_enabled;
1128 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
a7854037 1129 u8 vlan_enabled = br_vlan_enabled(br);
4917a154
NA		 1130 u64 clockval;
1131
1132 clockval = br_timer_value(&br->hello_timer);
1133 if (nla_put_u64(skb, IFLA_BR_HELLO_TIMER, clockval))
1134 return -EMSGSIZE;
1135 clockval = br_timer_value(&br->tcn_timer);
1136 if (nla_put_u64(skb, IFLA_BR_TCN_TIMER, clockval))
1137 return -EMSGSIZE;
1138 clockval = br_timer_value(&br->topology_change_timer);
1139 if (nla_put_u64(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval))
1140 return -EMSGSIZE;
1141 clockval = br_timer_value(&br->gc_timer);
1142 if (nla_put_u64(skb, IFLA_BR_GC_TIMER, clockval))
1143 return -EMSGSIZE;
e5c3ea5c
JP		 1144
1145 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1146 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
af615762
JT		 1147 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1148 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1149 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
a7854037 1150 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
7910228b 1151 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
4917a154
NA		 1152 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1153 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1154 &br->bridge_id) ||
1155 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1156 &br->designated_root) ||
684dd248 1157 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
ed416309
NA		 1158 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1159 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1160 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
d76bd14e 1161 br->topology_change_detected) ||
111189ab 1162 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr))
e5c3ea5c
JP		 1163 return -EMSGSIZE;
1164
d2d427b3 1165#ifdef CONFIG_BRIDGE_VLAN_FILTERING
0f963b75
NA		 1166 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
1167 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid))
d2d427b3
TM		 1168 return -EMSGSIZE;
1169#endif
a9a6bc70 1170#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
89126327 1171 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
295141d9
NA		 1172 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||
1173 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
ba062d7c 1174 br->multicast_query_use_ifaddr) ||
431db3c0
NA		 1175 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||
1176 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,
858079fd 1177 br->hash_elasticity) ||
79b859f5
NA		 1178 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1179 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
b89e6bab
NA		 1180 br->multicast_last_member_count) ||
1181 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
1182 br->multicast_startup_query_count))
a9a6bc70 1183 return -EMSGSIZE;
7e4df51e
NA		 1184
1185 clockval = jiffies_to_clock_t(br->multicast_last_member_interval);
1186 if (nla_put_u64(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval))
1187 return -EMSGSIZE;
1188 clockval = jiffies_to_clock_t(br->multicast_membership_interval);
1189 if (nla_put_u64(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval))
1190 return -EMSGSIZE;
1191 clockval = jiffies_to_clock_t(br->multicast_querier_interval);
1192 if (nla_put_u64(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval))
1193 return -EMSGSIZE;
1194 clockval = jiffies_to_clock_t(br->multicast_query_interval);
1195 if (nla_put_u64(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval))
1196 return -EMSGSIZE;
1197 clockval = jiffies_to_clock_t(br->multicast_query_response_interval);
1198 if (nla_put_u64(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval))
1199 return -EMSGSIZE;
1200 clockval = jiffies_to_clock_t(br->multicast_startup_query_interval);
1201 if (nla_put_u64(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval))
1202 return -EMSGSIZE;
a9a6bc70 1203#endif
93870cc0
NA		 1204#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1205 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
1206 br->nf_call_iptables ? 1 : 0) ||
1207 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
1208 br->nf_call_ip6tables ? 1 : 0) ||
1209 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
1210 br->nf_call_arptables ? 1 : 0))
1211 return -EMSGSIZE;
1212#endif
a9a6bc70 1213
e5c3ea5c
JP		 1214 return 0;
1215}
1216
fed0a159 1217
207895fd 1218static struct rtnl_af_ops br_af_ops __read_mostly = {
6cbdceeb 1219 .family = AF_BRIDGE,
b1974ed0 1220 .get_link_af_size = br_get_link_af_size_filtered,
6cbdceeb
VY		 1221};
1222
149ddd83 1223struct rtnl_link_ops br_link_ops __read_mostly = {
ced8283f
JP		 1224 .kind = "bridge",
1225 .priv_size = sizeof(struct net_bridge),
1226 .setup = br_dev_setup,
eb4cb851 1227 .maxtype = IFLA_BR_MAX,
13323516 1228 .policy = br_policy,
ced8283f
JP		 1229 .validate = br_validate,
1230 .newlink = br_dev_newlink,
13323516 1231 .changelink = br_changelink,
ced8283f 1232 .dellink = br_dev_delete,
e5c3ea5c
JP		 1233 .get_size = br_get_size,
1234 .fill_info = br_fill_info,
3ac636b8
JP		 1235
1236 .slave_maxtype = IFLA_BRPORT_MAX,
1237 .slave_policy = br_port_policy,
1238 .slave_changelink = br_port_slave_changelink,
ced8283f
JP		 1239 .get_slave_size = br_port_get_slave_size,
1240 .fill_slave_info = br_port_fill_slave_info,
bb900b27 1241};
11dc1f36 1242
32fe21c0 1243int __init br_netlink_init(void)
11dc1f36 1244{
3ec8e9f0
VY		 1245 int err;
1246
1247 br_mdb_init();
3678a9d8 1248 rtnl_af_register(&br_af_ops);
3ec8e9f0 1249
6cbdceeb
VY		 1250 err = rtnl_link_register(&br_link_ops);
1251 if (err)
1252 goto out_af;
1253
3ec8e9f0 1254 return 0;
6cbdceeb
VY		 1255
1256out_af:
1257 rtnl_af_unregister(&br_af_ops);
3ec8e9f0
VY		 1258 br_mdb_uninit();
1259 return err;
11dc1f36
SH		 1260}
1261
34666d46 1262void br_netlink_fini(void)
11dc1f36 1263{
3ec8e9f0 1264 br_mdb_uninit();
6cbdceeb 1265 rtnl_af_unregister(&br_af_ops);
bb900b27 1266 rtnl_link_unregister(&br_link_ops);
11dc1f36 1267}
Linux kernel - Deliverables
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