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net: bridge: add neigh_suppress to bridge port policies
[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"
efa5356b 23#include "br_private_tunnel.h"
11dc1f36 24
2594e906 25static int __get_num_vlan_infos(struct net_bridge_vlan_group *vg,
77751ee8 26 u32 filter_mask)
fed0a159 27{
2594e906
NA		 28 struct net_bridge_vlan *v;
29 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 30 u16 flags, pvid;
fed0a159
RP		 31 int num_vlans = 0;
32
fed0a159
RP		 33 if (!(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
34 return 0;
35
77751ee8 36 pvid = br_get_pvid(vg);
2594e906 37 /* Count number of vlan infos */
586c2b57 38 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
fed0a159 39 flags = 0;
2594e906
NA		 40 /* only a context, bridge vlan not activated */
41 if (!br_vlan_should_use(v))
42 continue;
43 if (v->vid == pvid)
fed0a159
RP		 44 flags |= BRIDGE_VLAN_INFO_PVID;
45
2594e906 46 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
fed0a159
RP		 47 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
48
49 if (vid_range_start == 0) {
50 goto initvars;
2594e906 51 } else if ((v->vid - vid_range_end) == 1 &&
fed0a159 52 flags == vid_range_flags) {
2594e906 53 vid_range_end = v->vid;
fed0a159
RP		 54 continue;
55 } else {
56 if ((vid_range_end - vid_range_start) > 0)
57 num_vlans += 2;
58 else
59 num_vlans += 1;
60 }
61initvars:
2594e906
NA		 62 vid_range_start = v->vid;
63 vid_range_end = v->vid;
fed0a159
RP		 64 vid_range_flags = flags;
65 }
66
67 if (vid_range_start != 0) {
68 if ((vid_range_end - vid_range_start) > 0)
69 num_vlans += 2;
70 else
71 num_vlans += 1;
72 }
73
74 return num_vlans;
75}
76
2594e906 77static int br_get_num_vlan_infos(struct net_bridge_vlan_group *vg,
77751ee8 78 u32 filter_mask)
2594e906 79{
586c2b57
NA		 80 int num_vlans;
81
2594e906
NA		 82 if (!vg)
83 return 0;
84
85 if (filter_mask & RTEXT_FILTER_BRVLAN)
86 return vg->num_vlans;
87
586c2b57
NA		 88 rcu_read_lock();
89 num_vlans = __get_num_vlan_infos(vg, filter_mask);
90 rcu_read_unlock();
91
92 return num_vlans;
2594e906
NA		 93}
94
fed0a159
RP		 95static size_t br_get_link_af_size_filtered(const struct net_device *dev,
96 u32 filter_mask)
b7853d73 97{
2594e906 98 struct net_bridge_vlan_group *vg = NULL;
efa5356b 99 struct net_bridge_port *p = NULL;
2594e906 100 struct net_bridge *br;
fed0a159 101 int num_vlan_infos;
efa5356b 102 size_t vinfo_sz = 0;
b7853d73 103
2f56f6be 104 rcu_read_lock();
2594e906
NA		 105 if (br_port_exists(dev)) {
106 p = br_port_get_rcu(dev);
907b1e6e 107 vg = nbp_vlan_group_rcu(p);
2594e906
NA		 108 } else if (dev->priv_flags & IFF_EBRIDGE) {
109 br = netdev_priv(dev);
907b1e6e 110 vg = br_vlan_group_rcu(br);
2594e906 111 }
77751ee8 112 num_vlan_infos = br_get_num_vlan_infos(vg, filter_mask);
2f56f6be 113 rcu_read_unlock();
b7853d73 114
efa5356b
RP		 115 if (p && (p->flags & BR_VLAN_TUNNEL))
116 vinfo_sz += br_get_vlan_tunnel_info_size(vg);
117
b7853d73 118 /* Each VLAN is returned in bridge_vlan_info along with flags */
efa5356b
RP		 119 vinfo_sz += num_vlan_infos * nla_total_size(sizeof(struct bridge_vlan_info));
120
121 return vinfo_sz;
b7853d73
RP		 122}
123
25c71c75 124static inline size_t br_port_info_size(void)
125{
126 return nla_total_size(1) /* IFLA_BRPORT_STATE */
127 + nla_total_size(2) /* IFLA_BRPORT_PRIORITY */
128 + nla_total_size(4) /* IFLA_BRPORT_COST */
129 + nla_total_size(1) /* IFLA_BRPORT_MODE */
a2e01a65 130 + nla_total_size(1) /* IFLA_BRPORT_GUARD */
1007dd1a 131 + nla_total_size(1) /* IFLA_BRPORT_PROTECT */
3da889b6 132 + nla_total_size(1) /* IFLA_BRPORT_FAST_LEAVE */
6db6f0ea 133 + nla_total_size(1) /* IFLA_BRPORT_MCAST_TO_UCAST */
9ba18891 134 + nla_total_size(1) /* IFLA_BRPORT_LEARNING */
867a5943 135 + nla_total_size(1) /* IFLA_BRPORT_UNICAST_FLOOD */
9051247d
TK		 136 + nla_total_size(1) /* IFLA_BRPORT_MCAST_FLOOD */
137 + nla_total_size(1) /* IFLA_BRPORT_BCAST_FLOOD */
355b9f9d 138 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP */
786c2077 139 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP_WIFI */
efa5356b 140 + nla_total_size(1) /* IFLA_BRPORT_VLAN_TUNNEL */
821f1b21 141 + nla_total_size(1) /* IFLA_BRPORT_NEIGH_SUPPRESS */
4ebc7660 142 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
80df9a26 143 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */
96f94e7f
NA		 144 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */
145 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */
42d452c4
NA		 146 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_ID */
147 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_NO */
e08e838a
NA		 148 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */
149 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_CONFIG_PENDING */
12a0faa3
ND		 150 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */
151 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */
152 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_HOLD_TIMER */
5d6ae479
NA		 153#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
154 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MULTICAST_ROUTER */
155#endif
5af48b59 156 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_GROUP_FWD_MASK */
25c71c75 157 + 0;
158}
159
fed0a159 160static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask)
339bf98f
TG		 161{
162 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
25c71c75 163 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
164 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
165 + nla_total_size(4) /* IFLA_MASTER */
166 + nla_total_size(4) /* IFLA_MTU */
167 + nla_total_size(4) /* IFLA_LINK */
168 + nla_total_size(1) /* IFLA_OPERSTATE */
b7853d73 169 + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */
fed0a159
RP		 170 + nla_total_size(br_get_link_af_size_filtered(dev,
171 filter_mask)); /* IFLA_AF_SPEC */
25c71c75 172}
173
174static int br_port_fill_attrs(struct sk_buff *skb,
175 const struct net_bridge_port *p)
176{
177 u8 mode = !!(p->flags & BR_HAIRPIN_MODE);
61c0a9a8 178 u64 timerval;
25c71c75 179
180 if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
181 nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) ||
182 nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) ||
a2e01a65 183 nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
1007dd1a 184 nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
b6cb5ac8
NA		 185 nla_put_u8(skb, IFLA_BRPORT_PROTECT,
186 !!(p->flags & BR_ROOT_BLOCK)) ||
187 nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE,
188 !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||
6db6f0ea
FF		 189 nla_put_u8(skb, IFLA_BRPORT_MCAST_TO_UCAST,
190 !!(p->flags & BR_MULTICAST_TO_UNICAST)) ||
867a5943 191 nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) ||
b6cb5ac8
NA		 192 nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD,
193 !!(p->flags & BR_FLOOD)) ||
194 nla_put_u8(skb, IFLA_BRPORT_MCAST_FLOOD,
195 !!(p->flags & BR_MCAST_FLOOD)) ||
99f906e9
MM		 196 nla_put_u8(skb, IFLA_BRPORT_BCAST_FLOOD,
197 !!(p->flags & BR_BCAST_FLOOD)) ||
842a9ae0
JM		 198 nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) ||
199 nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI,
4ebc7660
NA		 200 !!(p->flags & BR_PROXYARP_WIFI)) ||
201 nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
80df9a26
NA		 202 &p->designated_root) ||
203 nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id),
96f94e7f
NA		 204 &p->designated_bridge) ||
205 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) ||
42d452c4
NA		 206 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost) ||
207 nla_put_u16(skb, IFLA_BRPORT_ID, p->port_id) ||
e08e838a
NA		 208 nla_put_u16(skb, IFLA_BRPORT_NO, p->port_no) ||
209 nla_put_u8(skb, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
210 p->topology_change_ack) ||
efa5356b
RP		 211 nla_put_u8(skb, IFLA_BRPORT_CONFIG_PENDING, p->config_pending) ||
212 nla_put_u8(skb, IFLA_BRPORT_VLAN_TUNNEL, !!(p->flags &
5af48b59 213 BR_VLAN_TUNNEL)) ||
821f1b21
RP		 214 nla_put_u16(skb, IFLA_BRPORT_GROUP_FWD_MASK, p->group_fwd_mask) ||
215 nla_put_u8(skb, IFLA_BRPORT_NEIGH_SUPPRESS,
216 !!(p->flags & BR_NEIGH_SUPPRESS)))
25c71c75 217 return -EMSGSIZE;
218
61c0a9a8 219 timerval = br_timer_value(&p->message_age_timer);
12a0faa3
ND		 220 if (nla_put_u64_64bit(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval,
221 IFLA_BRPORT_PAD))
61c0a9a8
NA		 222 return -EMSGSIZE;
223 timerval = br_timer_value(&p->forward_delay_timer);
12a0faa3
ND		 224 if (nla_put_u64_64bit(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval,
225 IFLA_BRPORT_PAD))
61c0a9a8
NA		 226 return -EMSGSIZE;
227 timerval = br_timer_value(&p->hold_timer);
12a0faa3
ND		 228 if (nla_put_u64_64bit(skb, IFLA_BRPORT_HOLD_TIMER, timerval,
229 IFLA_BRPORT_PAD))
61c0a9a8
NA		 230 return -EMSGSIZE;
231
5d6ae479
NA		 232#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
233 if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
234 p->multicast_router))
235 return -EMSGSIZE;
236#endif
237
25c71c75 238 return 0;
339bf98f
TG		 239}
240
36cd0ffb
RP		 241static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start,
242 u16 vid_end, u16 flags)
243{
244 struct bridge_vlan_info vinfo;
245
246 if ((vid_end - vid_start) > 0) {
247 /* add range to skb */
248 vinfo.vid = vid_start;
249 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN;
250 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
251 sizeof(vinfo), &vinfo))
252 goto nla_put_failure;
253
36cd0ffb
RP		 254 vinfo.vid = vid_end;
255 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END;
256 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
257 sizeof(vinfo), &vinfo))
258 goto nla_put_failure;
259 } else {
260 vinfo.vid = vid_start;
261 vinfo.flags = flags;
262 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
263 sizeof(vinfo), &vinfo))
264 goto nla_put_failure;
265 }
266
267 return 0;
268
269nla_put_failure:
270 return -EMSGSIZE;
271}
272
273static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb,
77751ee8 274 struct net_bridge_vlan_group *vg)
36cd0ffb 275{
2594e906
NA		 276 struct net_bridge_vlan *v;
277 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 278 u16 flags, pvid;
36cd0ffb
RP		 279 int err = 0;
280
281 /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan
282 * and mark vlan info with begin and end flags
283 * if vlaninfo represents a range
284 */
77751ee8 285 pvid = br_get_pvid(vg);
e9c953ef 286 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
36cd0ffb 287 flags = 0;
2594e906
NA		 288 if (!br_vlan_should_use(v))
289 continue;
290 if (v->vid == pvid)
36cd0ffb
RP		 291 flags |= BRIDGE_VLAN_INFO_PVID;
292
2594e906 293 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 294 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
295
296 if (vid_range_start == 0) {
297 goto initvars;
2594e906 298 } else if ((v->vid - vid_range_end) == 1 &&
36cd0ffb 299 flags == vid_range_flags) {
2594e906 300 vid_range_end = v->vid;
36cd0ffb
RP		 301 continue;
302 } else {
303 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
304 vid_range_end,
305 vid_range_flags);
306 if (err)
307 return err;
308 }
309
310initvars:
2594e906
NA		 311 vid_range_start = v->vid;
312 vid_range_end = v->vid;
36cd0ffb
RP		 313 vid_range_flags = flags;
314 }
315
0fe6de49
RP		 316 if (vid_range_start != 0) {
317 /* Call it once more to send any left over vlans */
318 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
319 vid_range_end,
320 vid_range_flags);
321 if (err)
322 return err;
323 }
36cd0ffb
RP		 324
325 return 0;
326}
327
328static int br_fill_ifvlaninfo(struct sk_buff *skb,
77751ee8 329 struct net_bridge_vlan_group *vg)
36cd0ffb
RP		 330{
331 struct bridge_vlan_info vinfo;
2594e906 332 struct net_bridge_vlan *v;
77751ee8 333 u16 pvid;
36cd0ffb 334
77751ee8 335 pvid = br_get_pvid(vg);
e9c953ef 336 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
2594e906
NA		 337 if (!br_vlan_should_use(v))
338 continue;
339
340 vinfo.vid = v->vid;
36cd0ffb 341 vinfo.flags = 0;
2594e906 342 if (v->vid == pvid)
36cd0ffb
RP		 343 vinfo.flags |= BRIDGE_VLAN_INFO_PVID;
344
2594e906 345 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 346 vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
347
348 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
349 sizeof(vinfo), &vinfo))
350 goto nla_put_failure;
351 }
352
353 return 0;
354
355nla_put_failure:
356 return -EMSGSIZE;
357}
358
11dc1f36
SH		 359/*
360 * Create one netlink message for one interface
361 * Contains port and master info as well as carrier and bridge state.
362 */
6cbdceeb 363static int br_fill_ifinfo(struct sk_buff *skb,
2594e906 364 struct net_bridge_port *port,
6cbdceeb
VY		 365 u32 pid, u32 seq, int event, unsigned int flags,
366 u32 filter_mask, const struct net_device *dev)
11dc1f36 367{
2594e906 368 struct net_bridge *br;
74685962 369 struct ifinfomsg *hdr;
11dc1f36 370 struct nlmsghdr *nlh;
11dc1f36 371 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
11dc1f36 372
6cbdceeb
VY		 373 if (port)
374 br = port->br;
375 else
376 br = netdev_priv(dev);
377
28a16c97 378 br_debug(br, "br_fill_info event %d port %s master %s\n",
379 event, dev->name, br->dev->name);
11dc1f36 380
74685962
TG		 381 nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags);
382 if (nlh == NULL)
26932566 383 return -EMSGSIZE;
11dc1f36 384
74685962
TG		 385 hdr = nlmsg_data(nlh);
386 hdr->ifi_family = AF_BRIDGE;
387 hdr->__ifi_pad = 0;
388 hdr->ifi_type = dev->type;
389 hdr->ifi_index = dev->ifindex;
390 hdr->ifi_flags = dev_get_flags(dev);
391 hdr->ifi_change = 0;
11dc1f36 392
2eb812e6
DM		 393 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
394 nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) ||
395 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
396 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
397 (dev->addr_len &&
398 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
a54acb3a
ND		 399 (dev->ifindex != dev_get_iflink(dev) &&
400 nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
2eb812e6 401 goto nla_put_failure;
25c71c75 402
6cbdceeb 403 if (event == RTM_NEWLINK && port) {
25c71c75 404 struct nlattr *nest
405 = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
406
407 if (nest == NULL || br_port_fill_attrs(skb, port) < 0)
408 goto nla_put_failure;
409 nla_nest_end(skb, nest);
410 }
411
6cbdceeb 412 /* Check if the VID information is requested */
36cd0ffb
RP		 413 if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
414 (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
2594e906 415 struct net_bridge_vlan_group *vg;
36cd0ffb
RP		 416 struct nlattr *af;
417 int err;
6cbdceeb 418
e9c953ef
NA		 419 /* RCU needed because of the VLAN locking rules (rcu || rtnl) */
420 rcu_read_lock();
77751ee8 421 if (port)
e9c953ef 422 vg = nbp_vlan_group_rcu(port);
77751ee8 423 else
e9c953ef 424 vg = br_vlan_group_rcu(br);
6cbdceeb 425
e9c953ef
NA		 426 if (!vg || !vg->num_vlans) {
427 rcu_read_unlock();
6cbdceeb 428 goto done;
e9c953ef 429 }
6cbdceeb 430 af = nla_nest_start(skb, IFLA_AF_SPEC);
e9c953ef
NA		 431 if (!af) {
432 rcu_read_unlock();
6cbdceeb 433 goto nla_put_failure;
e9c953ef 434 }
36cd0ffb 435 if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
77751ee8 436 err = br_fill_ifvlaninfo_compressed(skb, vg);
36cd0ffb 437 else
77751ee8 438 err = br_fill_ifvlaninfo(skb, vg);
efa5356b
RP		 439
440 if (port && (port->flags & BR_VLAN_TUNNEL))
441 err = br_fill_vlan_tunnel_info(skb, vg);
e9c953ef 442 rcu_read_unlock();
36cd0ffb
RP		 443 if (err)
444 goto nla_put_failure;
6cbdceeb
VY		 445 nla_nest_end(skb, af);
446 }
447
448done:
053c095a
JB		 449 nlmsg_end(skb, nlh);
450 return 0;
11dc1f36 451
74685962 452nla_put_failure:
26932566
PM		 453 nlmsg_cancel(skb, nlh);
454 return -EMSGSIZE;
11dc1f36
SH		 455}
456
457/*
458 * Notify listeners of a change in port information
459 */
460void br_ifinfo_notify(int event, struct net_bridge_port *port)
461{
407af329 462 struct net *net;
11dc1f36 463 struct sk_buff *skb;
280a306c 464 int err = -ENOBUFS;
fed0a159 465 u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
11dc1f36 466
407af329
VY		 467 if (!port)
468 return;
469
470 net = dev_net(port->dev);
28a16c97 471 br_debug(port->br, "port %u(%s) event %d\n",
95c96174 472 (unsigned int)port->port_no, port->dev->name, event);
28a16c97 473
fed0a159 474 skb = nlmsg_new(br_nlmsg_size(port->dev, filter), GFP_ATOMIC);
280a306c
TG		 475 if (skb == NULL)
476 goto errout;
477
fed0a159 478 err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, port->dev);
26932566
PM		 479 if (err < 0) {
480 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
481 WARN_ON(err == -EMSGSIZE);
482 kfree_skb(skb);
483 goto errout;
484 }
1ce85fe4
PNA		 485 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
486 return;
280a306c 487errout:
87e823b3 488 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
11dc1f36
SH		 489}
490
407af329 491
11dc1f36
SH		 492/*
493 * Dump information about all ports, in response to GETLINK
494 */
e5a55a89 495int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
46c264da 496 struct net_device *dev, u32 filter_mask, int nlflags)
11dc1f36 497{
1fb1754a 498 struct net_bridge_port *port = br_port_get_rtnl(dev);
e5a55a89 499
36cd0ffb
RP		 500 if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
501 !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
1b846f92 502 return 0;
11dc1f36 503
46c264da 504 return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
1b846f92 505 filter_mask, dev);
11dc1f36
SH		 506}
507
bdced7ef 508static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
e19b42a1 509 int cmd, struct bridge_vlan_info *vinfo, bool *changed)
bdced7ef 510{
f418af63 511 bool curr_change;
bdced7ef
RP		 512 int err = 0;
513
514 switch (cmd) {
515 case RTM_SETLINK:
516 if (p) {
2594e906
NA		 517 /* if the MASTER flag is set this will act on the global
518 * per-VLAN entry as well
519 */
f418af63
NA		 520 err = nbp_vlan_add(p, vinfo->vid, vinfo->flags,
521 &curr_change);
bdced7ef 522 } else {
2594e906 523 vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY;
f418af63
NA		 524 err = br_vlan_add(br, vinfo->vid, vinfo->flags,
525 &curr_change);
bdced7ef 526 }
f418af63 527 if (curr_change)
e19b42a1 528 *changed = true;
bdced7ef
RP		 529 break;
530
531 case RTM_DELLINK:
532 if (p) {
e19b42a1
NA		 533 if (!nbp_vlan_delete(p, vinfo->vid))
534 *changed = true;
535
536 if ((vinfo->flags & BRIDGE_VLAN_INFO_MASTER) &&
537 !br_vlan_delete(p->br, vinfo->vid))
538 *changed = true;
539 } else if (!br_vlan_delete(br, vinfo->vid)) {
540 *changed = true;
bdced7ef
RP		 541 }
542 break;
543 }
544
545 return err;
546}
407af329 547
efa5356b
RP		 548static int br_process_vlan_info(struct net_bridge *br,
549 struct net_bridge_port *p, int cmd,
550 struct bridge_vlan_info *vinfo_curr,
e19b42a1
NA		 551 struct bridge_vlan_info **vinfo_last,
552 bool *changed)
efa5356b
RP		 553{
554 if (!vinfo_curr->vid || vinfo_curr->vid >= VLAN_VID_MASK)
555 return -EINVAL;
556
557 if (vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
558 /* check if we are already processing a range */
559 if (*vinfo_last)
560 return -EINVAL;
561 *vinfo_last = vinfo_curr;
562 /* don't allow range of pvids */
563 if ((*vinfo_last)->flags & BRIDGE_VLAN_INFO_PVID)
564 return -EINVAL;
565 return 0;
566 }
567
568 if (*vinfo_last) {
569 struct bridge_vlan_info tmp_vinfo;
570 int v, err;
571
572 if (!(vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_END))
573 return -EINVAL;
574
575 if (vinfo_curr->vid <= (*vinfo_last)->vid)
576 return -EINVAL;
577
578 memcpy(&tmp_vinfo, *vinfo_last,
579 sizeof(struct bridge_vlan_info));
580 for (v = (*vinfo_last)->vid; v <= vinfo_curr->vid; v++) {
581 tmp_vinfo.vid = v;
e19b42a1 582 err = br_vlan_info(br, p, cmd, &tmp_vinfo, changed);
efa5356b
RP		 583 if (err)
584 break;
585 }
586 *vinfo_last = NULL;
587
66c54517 588 return err;
efa5356b
RP		 589 }
590
e19b42a1 591 return br_vlan_info(br, p, cmd, vinfo_curr, changed);
efa5356b
RP		 592}
593
407af329
VY		 594static int br_afspec(struct net_bridge *br,
595 struct net_bridge_port *p,
596 struct nlattr *af_spec,
e19b42a1 597 int cmd, bool *changed)
407af329 598{
efa5356b
RP		 599 struct bridge_vlan_info *vinfo_curr = NULL;
600 struct bridge_vlan_info *vinfo_last = NULL;
bdced7ef 601 struct nlattr *attr;
efa5356b
RP		 602 struct vtunnel_info tinfo_last = {};
603 struct vtunnel_info tinfo_curr = {};
604 int err = 0, rem;
407af329 605
bdced7ef 606 nla_for_each_nested(attr, af_spec, rem) {
efa5356b
RP		 607 err = 0;
608 switch (nla_type(attr)) {
609 case IFLA_BRIDGE_VLAN_TUNNEL_INFO:
1020ce31 610 if (!p || !(p->flags & BR_VLAN_TUNNEL))
bdced7ef 611 return -EINVAL;
efa5356b
RP		 612 err = br_parse_vlan_tunnel_info(attr, &tinfo_curr);
613 if (err)
614 return err;
615 err = br_process_vlan_tunnel_info(br, p, cmd,
616 &tinfo_curr,
e19b42a1
NA		 617 &tinfo_last,
618 changed);
efa5356b
RP		 619 if (err)
620 return err;
621 break;
622 case IFLA_BRIDGE_VLAN_INFO:
623 if (nla_len(attr) != sizeof(struct bridge_vlan_info))
6623c60d 624 return -EINVAL;
efa5356b
RP		 625 vinfo_curr = nla_data(attr);
626 err = br_process_vlan_info(br, p, cmd, vinfo_curr,
e19b42a1 627 &vinfo_last, changed);
efa5356b
RP		 628 if (err)
629 return err;
630 break;
bdced7ef 631 }
407af329
VY		 632 }
633
634 return err;
635}
636
3ac636b8 637static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
25c71c75 638 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
639 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
640 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
641 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
a2e01a65 642 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
1007dd1a 643 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
6f705d8c 644 [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 },
9ba18891 645 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
867a5943 646 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
355b9f9d 647 [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 },
786c2077 648 [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },
5d6ae479 649 [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },
6db6f0ea 650 [IFLA_BRPORT_MCAST_TO_UCAST] = { .type = NLA_U8 },
9051247d
TK		 651 [IFLA_BRPORT_MCAST_FLOOD] = { .type = NLA_U8 },
652 [IFLA_BRPORT_BCAST_FLOOD] = { .type = NLA_U8 },
5af48b59 653 [IFLA_BRPORT_GROUP_FWD_MASK] = { .type = NLA_U16 },
1a3fbd3f 654 [IFLA_BRPORT_NEIGH_SUPPRESS] = { .type = NLA_U8 },
25c71c75 655};
656
657/* Change the state of the port and notify spanning tree */
658static int br_set_port_state(struct net_bridge_port *p, u8 state)
659{
660 if (state > BR_STATE_BLOCKING)
661 return -EINVAL;
662
663 /* if kernel STP is running, don't allow changes */
664 if (p->br->stp_enabled == BR_KERNEL_STP)
665 return -EBUSY;
666
576eb625 667 /* if device is not up, change is not allowed
668 * if link is not present, only allowable state is disabled
669 */
25c71c75 670 if (!netif_running(p->dev) ||
576eb625 671 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
25c71c75 672 return -ENETDOWN;
673
775dd692 674 br_set_state(p, state);
25c71c75 675 br_port_state_selection(p->br);
676 return 0;
677}
678
679/* Set/clear or port flags based on attribute */
3922285d
AS		 680static int br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
681 int attrtype, unsigned long mask)
25c71c75 682{
3922285d
AS		 683 unsigned long flags;
684 int err;
685
686 if (!tb[attrtype])
687 return 0;
688
689 if (nla_get_u8(tb[attrtype]))
690 flags = p->flags | mask;
691 else
692 flags = p->flags & ~mask;
693
694 err = br_switchdev_set_port_flag(p, flags, mask);
695 if (err)
696 return err;
697
698 p->flags = flags;
699 return 0;
25c71c75 700}
701
702/* Process bridge protocol info on port */
703static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
704{
e028e4b8 705 unsigned long old_flags = p->flags;
efa5356b
RP		 706 bool br_vlan_tunnel_old = false;
707 int err;
25c71c75 708
3922285d
AS		 709 err = br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
710 if (err)
711 return err;
712
713 err = br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
714 if (err)
715 return err;
716
717 err = br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
718 if (err)
719 return err;
720
721 err = br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
722 if (err)
723 return err;
724
725 err = br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
726 if (err)
727 return err;
728
729 err = br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
730 if (err)
731 return err;
732
733 err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);
734 if (err)
735 return err;
736
737 err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST, BR_MULTICAST_TO_UNICAST);
738 if (err)
739 return err;
740
741 err = br_set_port_flag(p, tb, IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD);
742 if (err)
743 return err;
744
745 err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
746 if (err)
747 return err;
748
749 err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
750 if (err)
751 return err;
25c71c75 752
efa5356b 753 br_vlan_tunnel_old = (p->flags & BR_VLAN_TUNNEL) ? true : false;
3922285d
AS		 754 err = br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL);
755 if (err)
756 return err;
757
efa5356b
RP		 758 if (br_vlan_tunnel_old && !(p->flags & BR_VLAN_TUNNEL))
759 nbp_vlan_tunnel_info_flush(p);
760
25c71c75 761 if (tb[IFLA_BRPORT_COST]) {
762 err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
763 if (err)
764 return err;
765 }
766
767 if (tb[IFLA_BRPORT_PRIORITY]) {
768 err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
769 if (err)
770 return err;
771 }
772
773 if (tb[IFLA_BRPORT_STATE]) {
774 err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
775 if (err)
776 return err;
777 }
e028e4b8 778
9b0c6e4d
NA		 779 if (tb[IFLA_BRPORT_FLUSH])
780 br_fdb_delete_by_port(p->br, p, 0, 0);
781
5d6ae479
NA		 782#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
783 if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {
784 u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);
785
786 err = br_multicast_set_port_router(p, mcast_router);
787 if (err)
788 return err;
789 }
790#endif
5af48b59
NA		 791
792 if (tb[IFLA_BRPORT_GROUP_FWD_MASK]) {
793 u16 fwd_mask = nla_get_u16(tb[IFLA_BRPORT_GROUP_FWD_MASK]);
794
795 if (fwd_mask & BR_GROUPFWD_MACPAUSE)
796 return -EINVAL;
797 p->group_fwd_mask = fwd_mask;
798 }
799
821f1b21
RP		 800 err = br_set_port_flag(p, tb, IFLA_BRPORT_NEIGH_SUPPRESS,
801 BR_NEIGH_SUPPRESS);
802 if (err)
803 return err;
804
e028e4b8 805 br_port_flags_change(p, old_flags ^ p->flags);
25c71c75 806 return 0;
807}
808
809/* Change state and parameters on port. */
add511b3 810int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
11dc1f36 811{
74685962 812 struct nlattr *protinfo;
407af329 813 struct nlattr *afspec;
11dc1f36 814 struct net_bridge_port *p;
2062cc20 815 struct nlattr *tb[IFLA_BRPORT_MAX + 1];
e19b42a1 816 bool changed = false;
41c498b9 817 int err = 0;
11dc1f36 818
c60ee67f
H		 819 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO);
820 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329 821 if (!protinfo && !afspec)
25c71c75 822 return 0;
11dc1f36 823
ec1e5610 824 p = br_port_get_rtnl(dev);
407af329 825 /* We want to accept dev as bridge itself if the AF_SPEC
8e3bff96 826 * is set to see if someone is setting vlan info on the bridge
407af329 827 */
7b99a993 828 if (!p && !afspec)
b5ed54e9 829 return -EINVAL;
11dc1f36 830
407af329
VY		 831 if (p && protinfo) {
832 if (protinfo->nla_type & NLA_F_NESTED) {
fceb6435
JB		 833 err = nla_parse_nested(tb, IFLA_BRPORT_MAX, protinfo,
834 br_port_policy, NULL);
407af329
VY		 835 if (err)
836 return err;
837
838 spin_lock_bh(&p->br->lock);
839 err = br_setport(p, tb);
840 spin_unlock_bh(&p->br->lock);
841 } else {
8e3bff96 842 /* Binary compatibility with old RSTP */
407af329
VY		 843 if (nla_len(protinfo) < sizeof(u8))
844 return -EINVAL;
845
846 spin_lock_bh(&p->br->lock);
847 err = br_set_port_state(p, nla_get_u8(protinfo));
848 spin_unlock_bh(&p->br->lock);
849 }
25c71c75 850 if (err)
407af329 851 goto out;
e19b42a1 852 changed = true;
407af329 853 }
11dc1f36 854
407af329
VY		 855 if (afspec) {
856 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
e19b42a1 857 afspec, RTM_SETLINK, &changed);
25c71c75 858 }
b03b6dd5 859
e19b42a1 860 if (changed)
25c71c75 861 br_ifinfo_notify(RTM_NEWLINK, p);
407af329 862out:
25c71c75 863 return err;
11dc1f36
SH		 864}
865
407af329 866/* Delete port information */
add511b3 867int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
407af329 868{
407af329
VY		 869 struct nlattr *afspec;
870 struct net_bridge_port *p;
e19b42a1 871 bool changed = false;
8508025c 872 int err = 0;
407af329 873
c60ee67f 874 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329
VY		 875 if (!afspec)
876 return 0;
877
878 p = br_port_get_rtnl(dev);
879 /* We want to accept dev as bridge itself as well */
880 if (!p && !(dev->priv_flags & IFF_EBRIDGE))
881 return -EINVAL;
882
883 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
e19b42a1
NA		 884 afspec, RTM_DELLINK, &changed);
885 if (changed)
02dba438
RP		 886 /* Send RTM_NEWLINK because userspace
887 * expects RTM_NEWLINK for vlan dels
888 */
889 br_ifinfo_notify(RTM_NEWLINK, p);
407af329
VY		 890
891 return err;
892}
a8b8a889
MS		 893
894static int br_validate(struct nlattr *tb[], struct nlattr *data[],
895 struct netlink_ext_ack *extack)
bb900b27 896{
897 if (tb[IFLA_ADDRESS]) {
898 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
899 return -EINVAL;
900 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
901 return -EADDRNOTAVAIL;
902 }
903
d2d427b3
TM		 904 if (!data)
905 return 0;
906
907#ifdef CONFIG_BRIDGE_VLAN_FILTERING
908 if (data[IFLA_BR_VLAN_PROTOCOL]) {
909 switch (nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])) {
910 case htons(ETH_P_8021Q):
911 case htons(ETH_P_8021AD):
912 break;
913 default:
914 return -EPROTONOSUPPORT;
915 }
916 }
a2858602
TJ		 917
918 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
919 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
920
921 if (defpvid >= VLAN_VID_MASK)
922 return -EINVAL;
923 }
d2d427b3
TM		 924#endif
925
bb900b27 926 return 0;
927}
928
3ac636b8
JP		 929static int br_port_slave_changelink(struct net_device *brdev,
930 struct net_device *dev,
931 struct nlattr *tb[],
17dd0ec4
MS		 932 struct nlattr *data[],
933 struct netlink_ext_ack *extack)
3ac636b8 934{
963ad948
NA		 935 struct net_bridge *br = netdev_priv(brdev);
936 int ret;
937
3ac636b8
JP		 938 if (!data)
939 return 0;
963ad948
NA		 940
941 spin_lock_bh(&br->lock);
942 ret = br_setport(br_port_get_rtnl(dev), data);
943 spin_unlock_bh(&br->lock);
944
945 return ret;
3ac636b8
JP		 946}
947
ced8283f
JP		 948static int br_port_fill_slave_info(struct sk_buff *skb,
949 const struct net_device *brdev,
950 const struct net_device *dev)
951{
952 return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
953}
954
955static size_t br_port_get_slave_size(const struct net_device *brdev,
956 const struct net_device *dev)
957{
958 return br_port_info_size();
959}
960
13323516
JP		 961static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
962 [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
963 [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
964 [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
af615762
JT		 965 [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
966 [IFLA_BR_STP_STATE] = { .type = NLA_U32 },
967 [IFLA_BR_PRIORITY] = { .type = NLA_U16 },
a7854037 968 [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
d2d427b3 969 [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
7910228b 970 [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
111189ab
NA		 971 [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
972 .len = ETH_ALEN },
a9a6bc70 973 [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
89126327 974 [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
295141d9 975 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
ba062d7c 976 [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
431db3c0 977 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
858079fd 978 [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
79b859f5 979 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
b89e6bab 980 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
7e4df51e
NA		 981 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
982 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
983 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
984 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
985 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
986 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
93870cc0
NA		 987 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 },
988 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 },
989 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 },
0f963b75 990 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 },
6dada9b1 991 [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 },
1080ab95 992 [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 },
5e923585 993 [IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 },
aa2ae3e7 994 [IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 },
13323516
JP		 995};
996
997static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
ad744b22
MS		 998 struct nlattr *data[],
999 struct netlink_ext_ack *extack)
13323516
JP		 1000{
1001 struct net_bridge *br = netdev_priv(brdev);
1002 int err;
1003
1004 if (!data)
1005 return 0;
1006
1007 if (data[IFLA_BR_FORWARD_DELAY]) {
1008 err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
1009 if (err)
1010 return err;
1011 }
1012
1013 if (data[IFLA_BR_HELLO_TIME]) {
1014 err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
1015 if (err)
1016 return err;
1017 }
1018
1019 if (data[IFLA_BR_MAX_AGE]) {
1020 err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
1021 if (err)
1022 return err;
1023 }
1024
af615762 1025 if (data[IFLA_BR_AGEING_TIME]) {
c62987bb
SF		 1026 err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
1027 if (err)
1028 return err;
af615762
JT		 1029 }
1030
1031 if (data[IFLA_BR_STP_STATE]) {
1032 u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
1033
1034 br_stp_set_enabled(br, stp_enabled);
1035 }
1036
1037 if (data[IFLA_BR_PRIORITY]) {
1038 u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]);
1039
1040 br_stp_set_bridge_priority(br, priority);
1041 }
1042
a7854037
NA		 1043 if (data[IFLA_BR_VLAN_FILTERING]) {
1044 u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
1045
1046 err = __br_vlan_filter_toggle(br, vlan_filter);
1047 if (err)
1048 return err;
1049 }
1050
d2d427b3
TM		 1051#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1052 if (data[IFLA_BR_VLAN_PROTOCOL]) {
1053 __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]);
1054
1055 err = __br_vlan_set_proto(br, vlan_proto);
1056 if (err)
1057 return err;
1058 }
0f963b75
NA		 1059
1060 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
1061 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
1062
1063 err = __br_vlan_set_default_pvid(br, defpvid);
1064 if (err)
1065 return err;
1066 }
6dada9b1
NA		 1067
1068 if (data[IFLA_BR_VLAN_STATS_ENABLED]) {
1069 __u8 vlan_stats = nla_get_u8(data[IFLA_BR_VLAN_STATS_ENABLED]);
1070
1071 err = br_vlan_set_stats(br, vlan_stats);
1072 if (err)
1073 return err;
1074 }
d2d427b3
TM		 1075#endif
1076
7910228b
NA		 1077 if (data[IFLA_BR_GROUP_FWD_MASK]) {
1078 u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);
1079
1080 if (fwd_mask & BR_GROUPFWD_RESTRICTED)
1081 return -EINVAL;
1082 br->group_fwd_mask = fwd_mask;
1083 }
1084
111189ab
NA		 1085 if (data[IFLA_BR_GROUP_ADDR]) {
1086 u8 new_addr[ETH_ALEN];
1087
1088 if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
1089 return -EINVAL;
1090 memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
1091 if (!is_link_local_ether_addr(new_addr))
1092 return -EINVAL;
1093 if (new_addr[5] == 1 || /* 802.3x Pause address */
1094 new_addr[5] == 2 || /* 802.3ad Slow protocols */
1095 new_addr[5] == 3) /* 802.1X PAE address */
1096 return -EINVAL;
1097 spin_lock_bh(&br->lock);
1098 memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
1099 spin_unlock_bh(&br->lock);
1100 br->group_addr_set = true;
1101 br_recalculate_fwd_mask(br);
1102 }
1103
150217c6
NA		 1104 if (data[IFLA_BR_FDB_FLUSH])
1105 br_fdb_flush(br);
1106
a9a6bc70
NA		 1107#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1108 if (data[IFLA_BR_MCAST_ROUTER]) {
1109 u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]);
1110
1111 err = br_multicast_set_router(br, multicast_router);
1112 if (err)
1113 return err;
1114 }
89126327
NA		 1115
1116 if (data[IFLA_BR_MCAST_SNOOPING]) {
1117 u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
1118
1119 err = br_multicast_toggle(br, mcast_snooping);
1120 if (err)
1121 return err;
1122 }
295141d9
NA		 1123
1124 if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {
1125 u8 val;
1126
1127 val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
1128 br->multicast_query_use_ifaddr = !!val;
1129 }
ba062d7c
NA		 1130
1131 if (data[IFLA_BR_MCAST_QUERIER]) {
1132 u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
1133
1134 err = br_multicast_set_querier(br, mcast_querier);
1135 if (err)
1136 return err;
1137 }
431db3c0
NA		 1138
1139 if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) {
1140 u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]);
1141
1142 br->hash_elasticity = val;
1143 }
858079fd
NA		 1144
1145 if (data[IFLA_BR_MCAST_HASH_MAX]) {
1146 u32 hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]);
1147
1148 err = br_multicast_set_hash_max(br, hash_max);
1149 if (err)
1150 return err;
1151 }
79b859f5
NA		 1152
1153 if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
1154 u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
1155
1156 br->multicast_last_member_count = val;
1157 }
b89e6bab
NA		 1158
1159 if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
1160 u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
1161
1162 br->multicast_startup_query_count = val;
1163 }
7e4df51e
NA		 1164
1165 if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
1166 u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
1167
1168 br->multicast_last_member_interval = clock_t_to_jiffies(val);
1169 }
1170
1171 if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
1172 u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
1173
1174 br->multicast_membership_interval = clock_t_to_jiffies(val);
1175 }
1176
1177 if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
1178 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
1179
1180 br->multicast_querier_interval = clock_t_to_jiffies(val);
1181 }
1182
1183 if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
1184 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
1185
1186 br->multicast_query_interval = clock_t_to_jiffies(val);
1187 }
1188
1189 if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
1190 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
1191
1192 br->multicast_query_response_interval = clock_t_to_jiffies(val);
1193 }
1194
1195 if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
1196 u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
1197
1198 br->multicast_startup_query_interval = clock_t_to_jiffies(val);
1199 }
1080ab95
NA		 1200
1201 if (data[IFLA_BR_MCAST_STATS_ENABLED]) {
1202 __u8 mcast_stats;
1203
1204 mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]);
1205 br->multicast_stats_enabled = !!mcast_stats;
1206 }
5e923585
NA		 1207
1208 if (data[IFLA_BR_MCAST_IGMP_VERSION]) {
1209 __u8 igmp_version;
1210
1211 igmp_version = nla_get_u8(data[IFLA_BR_MCAST_IGMP_VERSION]);
1212 err = br_multicast_set_igmp_version(br, igmp_version);
1213 if (err)
1214 return err;
1215 }
aa2ae3e7
NA		 1216
1217#if IS_ENABLED(CONFIG_IPV6)
1218 if (data[IFLA_BR_MCAST_MLD_VERSION]) {
1219 __u8 mld_version;
1220
1221 mld_version = nla_get_u8(data[IFLA_BR_MCAST_MLD_VERSION]);
1222 err = br_multicast_set_mld_version(br, mld_version);
1223 if (err)
1224 return err;
1225 }
1226#endif
a9a6bc70 1227#endif
93870cc0
NA		 1228#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1229 if (data[IFLA_BR_NF_CALL_IPTABLES]) {
1230 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]);
1231
1232 br->nf_call_iptables = val ? true : false;
1233 }
1234
1235 if (data[IFLA_BR_NF_CALL_IP6TABLES]) {
1236 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]);
1237
1238 br->nf_call_ip6tables = val ? true : false;
1239 }
1240
1241 if (data[IFLA_BR_NF_CALL_ARPTABLES]) {
1242 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]);
1243
1244 br->nf_call_arptables = val ? true : false;
1245 }
1246#endif
a9a6bc70 1247
13323516
JP		 1248 return 0;
1249}
1250
b6677449 1251static int br_dev_newlink(struct net *src_net, struct net_device *dev,
7a3f4a18
MS		 1252 struct nlattr *tb[], struct nlattr *data[],
1253 struct netlink_ext_ack *extack)
b6677449
IV		 1254{
1255 struct net_bridge *br = netdev_priv(dev);
1256 int err;
1257
1258 if (tb[IFLA_ADDRESS]) {
1259 spin_lock_bh(&br->lock);
1260 br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
1261 spin_unlock_bh(&br->lock);
1262 }
1263
5b8d5429 1264 err = register_netdevice(dev);
b6677449
IV		 1265 if (err)
1266 return err;
1267
ad744b22 1268 err = br_changelink(dev, tb, data, extack);
5b8d5429
IS		 1269 if (err)
1270 unregister_netdevice(dev);
1271 return err;
b6677449
IV		 1272}
1273
e5c3ea5c
JP		 1274static size_t br_get_size(const struct net_device *brdev)
1275{
1276 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1277 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1278 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
af615762
JT		 1279 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1280 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1281 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
a7854037 1282 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
d2d427b3
TM		 1283#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1284 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
0f963b75 1285 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
6dada9b1 1286 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */
d2d427b3 1287#endif
7910228b 1288 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
5127c81f 1289 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
7599a220 1290 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
8762ba68 1291 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
684dd248 1292 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
b89e6bab
NA		 1293 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1294 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
12a0faa3
ND		 1295 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1296 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1297 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1298 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
111189ab 1299 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
a9a6bc70
NA		 1300#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1301 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
89126327 1302 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
295141d9 1303 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
ba062d7c 1304 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
1080ab95 1305 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */
b89e6bab
NA		 1306 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1307 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1308 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1309 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
12a0faa3
ND		 1310 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1311 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1312 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1313 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1314 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1315 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
5e923585 1316 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_IGMP_VERSION */
aa2ae3e7 1317 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_MLD_VERSION */
93870cc0
NA		 1318#endif
1319#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1320 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1321 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1322 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
a9a6bc70 1323#endif
e5c3ea5c
JP		 1324 0;
1325}
1326
1327static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1328{
1329 struct net_bridge *br = netdev_priv(brdev);
1330 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1331 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1332 u32 age_time = jiffies_to_clock_t(br->max_age);
af615762
JT		 1333 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1334 u32 stp_enabled = br->stp_enabled;
1335 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
1f51445a 1336 u8 vlan_enabled = br_vlan_enabled(br->dev);
4917a154
NA		 1337 u64 clockval;
1338
1339 clockval = br_timer_value(&br->hello_timer);
12a0faa3 1340 if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1341 return -EMSGSIZE;
1342 clockval = br_timer_value(&br->tcn_timer);
12a0faa3 1343 if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1344 return -EMSGSIZE;
1345 clockval = br_timer_value(&br->topology_change_timer);
12a0faa3
ND		 1346 if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval,
1347 IFLA_BR_PAD))
4917a154 1348 return -EMSGSIZE;
f7cdee8a 1349 clockval = br_timer_value(&br->gc_work.timer);
12a0faa3 1350 if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD))
4917a154 1351 return -EMSGSIZE;
e5c3ea5c
JP		 1352
1353 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1354 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
af615762
JT		 1355 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1356 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1357 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
a7854037 1358 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
7910228b 1359 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
4917a154
NA		 1360 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1361 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1362 &br->bridge_id) ||
1363 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1364 &br->designated_root) ||
684dd248 1365 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
ed416309
NA		 1366 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1367 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1368 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
d76bd14e 1369 br->topology_change_detected) ||
111189ab 1370 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr))
e5c3ea5c
JP		 1371 return -EMSGSIZE;
1372
d2d427b3 1373#ifdef CONFIG_BRIDGE_VLAN_FILTERING
0f963b75 1374 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
6dada9b1
NA		 1375 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) ||
1376 nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED, br->vlan_stats_enabled))
d2d427b3
TM		 1377 return -EMSGSIZE;
1378#endif
a9a6bc70 1379#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
89126327 1380 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
295141d9
NA		 1381 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||
1382 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
ba062d7c 1383 br->multicast_query_use_ifaddr) ||
431db3c0 1384 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||
1080ab95
NA		 1385 nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED,
1386 br->multicast_stats_enabled) ||
431db3c0 1387 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,
858079fd 1388 br->hash_elasticity) ||
79b859f5
NA		 1389 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1390 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
b89e6bab
NA		 1391 br->multicast_last_member_count) ||
1392 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
5e923585
NA		 1393 br->multicast_startup_query_count) ||
1394 nla_put_u8(skb, IFLA_BR_MCAST_IGMP_VERSION,
1395 br->multicast_igmp_version))
a9a6bc70 1396 return -EMSGSIZE;
aa2ae3e7
NA		 1397#if IS_ENABLED(CONFIG_IPV6)
1398 if (nla_put_u8(skb, IFLA_BR_MCAST_MLD_VERSION,
1399 br->multicast_mld_version))
1400 return -EMSGSIZE;
1401#endif
7e4df51e 1402 clockval = jiffies_to_clock_t(br->multicast_last_member_interval);
12a0faa3
ND		 1403 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval,
1404 IFLA_BR_PAD))
7e4df51e
NA		 1405 return -EMSGSIZE;
1406 clockval = jiffies_to_clock_t(br->multicast_membership_interval);
12a0faa3
ND		 1407 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval,
1408 IFLA_BR_PAD))
7e4df51e
NA		 1409 return -EMSGSIZE;
1410 clockval = jiffies_to_clock_t(br->multicast_querier_interval);
12a0faa3
ND		 1411 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval,
1412 IFLA_BR_PAD))
7e4df51e
NA		 1413 return -EMSGSIZE;
1414 clockval = jiffies_to_clock_t(br->multicast_query_interval);
12a0faa3
ND		 1415 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval,
1416 IFLA_BR_PAD))
7e4df51e
NA		 1417 return -EMSGSIZE;
1418 clockval = jiffies_to_clock_t(br->multicast_query_response_interval);
12a0faa3
ND		 1419 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval,
1420 IFLA_BR_PAD))
7e4df51e
NA		 1421 return -EMSGSIZE;
1422 clockval = jiffies_to_clock_t(br->multicast_startup_query_interval);
12a0faa3
ND		 1423 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval,
1424 IFLA_BR_PAD))
7e4df51e 1425 return -EMSGSIZE;
a9a6bc70 1426#endif
93870cc0
NA		 1427#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1428 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
1429 br->nf_call_iptables ? 1 : 0) ||
1430 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
1431 br->nf_call_ip6tables ? 1 : 0) ||
1432 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
1433 br->nf_call_arptables ? 1 : 0))
1434 return -EMSGSIZE;
1435#endif
a9a6bc70 1436
e5c3ea5c
JP		 1437 return 0;
1438}
1439
d5ff8c41 1440static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
a60c0903 1441{
d5ff8c41 1442 struct net_bridge_port *p = NULL;
a60c0903
NA		 1443 struct net_bridge_vlan_group *vg;
1444 struct net_bridge_vlan *v;
d5ff8c41 1445 struct net_bridge *br;
a60c0903
NA		 1446 int numvls = 0;
1447
d5ff8c41
NA		 1448 switch (attr) {
1449 case IFLA_STATS_LINK_XSTATS:
1450 br = netdev_priv(dev);
1451 vg = br_vlan_group(br);
1452 break;
1453 case IFLA_STATS_LINK_XSTATS_SLAVE:
1454 p = br_port_get_rtnl(dev);
1455 if (!p)
1456 return 0;
1457 br = p->br;
1458 vg = nbp_vlan_group(p);
1459 break;
1460 default:
1461 return 0;
1462 }
1463
1080ab95
NA		 1464 if (vg) {
1465 /* we need to count all, even placeholder entries */
1466 list_for_each_entry(v, &vg->vlan_list, vlist)
1467 numvls++;
1468 }
a60c0903 1469
a60c0903 1470 return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
1080ab95 1471 nla_total_size(sizeof(struct br_mcast_stats)) +
a60c0903
NA		 1472 nla_total_size(0);
1473}
1474
d5ff8c41
NA		 1475static int br_fill_linkxstats(struct sk_buff *skb,
1476 const struct net_device *dev,
1477 int *prividx, int attr)
80e73cc5 1478{
d5ff8c41
NA		 1479 struct nlattr *nla __maybe_unused;
1480 struct net_bridge_port *p = NULL;
1481 struct net_bridge_vlan_group *vg;
1482 struct net_bridge_vlan *v;
1483 struct net_bridge *br;
1484 struct nlattr *nest;
1485 int vl_idx = 0;
80e73cc5
NA		 1486
1487 switch (attr) {
1488 case IFLA_STATS_LINK_XSTATS:
d5ff8c41
NA		 1489 br = netdev_priv(dev);
1490 vg = br_vlan_group(br);
80e73cc5
NA		 1491 break;
1492 case IFLA_STATS_LINK_XSTATS_SLAVE:
d5ff8c41
NA		 1493 p = br_port_get_rtnl(dev);
1494 if (!p)
1495 return 0;
1496 br = p->br;
1497 vg = nbp_vlan_group(p);
80e73cc5 1498 break;
d5ff8c41
NA		 1499 default:
1500 return -EINVAL;
80e73cc5
NA		 1501 }
1502
a60c0903
NA		 1503 nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE);
1504 if (!nest)
1505 return -EMSGSIZE;
a60c0903 1506
1080ab95 1507 if (vg) {
72f4af4e
NA		 1508 u16 pvid;
1509
1510 pvid = br_get_pvid(vg);
1080ab95
NA		 1511 list_for_each_entry(v, &vg->vlan_list, vlist) {
1512 struct bridge_vlan_xstats vxi;
1513 struct br_vlan_stats stats;
1514
1515 if (++vl_idx < *prividx)
1516 continue;
1517 memset(&vxi, 0, sizeof(vxi));
1518 vxi.vid = v->vid;
61ba1a2d 1519 vxi.flags = v->flags;
72f4af4e
NA		 1520 if (v->vid == pvid)
1521 vxi.flags |= BRIDGE_VLAN_INFO_PVID;
1080ab95
NA		 1522 br_vlan_get_stats(v, &stats);
1523 vxi.rx_bytes = stats.rx_bytes;
1524 vxi.rx_packets = stats.rx_packets;
1525 vxi.tx_bytes = stats.tx_bytes;
1526 vxi.tx_packets = stats.tx_packets;
1527
1528 if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi))
1529 goto nla_put_failure;
1530 }
1531 }
1532
1533#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1534 if (++vl_idx >= *prividx) {
1535 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST,
1536 sizeof(struct br_mcast_stats),
1537 BRIDGE_XSTATS_PAD);
1538 if (!nla)
a60c0903 1539 goto nla_put_failure;
d5ff8c41 1540 br_multicast_get_stats(br, p, nla_data(nla));
a60c0903 1541 }
1080ab95 1542#endif
a60c0903
NA		 1543 nla_nest_end(skb, nest);
1544 *prividx = 0;
1080ab95 1545
a60c0903
NA		 1546 return 0;
1547
1548nla_put_failure:
1549 nla_nest_end(skb, nest);
1550 *prividx = vl_idx;
1551
1552 return -EMSGSIZE;
1553}
fed0a159 1554
207895fd 1555static struct rtnl_af_ops br_af_ops __read_mostly = {
6cbdceeb 1556 .family = AF_BRIDGE,
b1974ed0 1557 .get_link_af_size = br_get_link_af_size_filtered,
6cbdceeb
VY		 1558};
1559
149ddd83 1560struct rtnl_link_ops br_link_ops __read_mostly = {
ced8283f
JP		 1561 .kind = "bridge",
1562 .priv_size = sizeof(struct net_bridge),
1563 .setup = br_dev_setup,
eb4cb851 1564 .maxtype = IFLA_BR_MAX,
13323516 1565 .policy = br_policy,
ced8283f
JP		 1566 .validate = br_validate,
1567 .newlink = br_dev_newlink,
13323516 1568 .changelink = br_changelink,
ced8283f 1569 .dellink = br_dev_delete,
e5c3ea5c
JP		 1570 .get_size = br_get_size,
1571 .fill_info = br_fill_info,
a60c0903
NA		 1572 .fill_linkxstats = br_fill_linkxstats,
1573 .get_linkxstats_size = br_get_linkxstats_size,
3ac636b8
JP		 1574
1575 .slave_maxtype = IFLA_BRPORT_MAX,
1576 .slave_policy = br_port_policy,
1577 .slave_changelink = br_port_slave_changelink,
ced8283f
JP		 1578 .get_slave_size = br_port_get_slave_size,
1579 .fill_slave_info = br_port_fill_slave_info,
bb900b27 1580};
11dc1f36 1581
32fe21c0 1582int __init br_netlink_init(void)
11dc1f36 1583{
3ec8e9f0
VY		 1584 int err;
1585
1586 br_mdb_init();
3678a9d8 1587 rtnl_af_register(&br_af_ops);
3ec8e9f0 1588
6cbdceeb
VY		 1589 err = rtnl_link_register(&br_link_ops);
1590 if (err)
1591 goto out_af;
1592
3ec8e9f0 1593 return 0;
6cbdceeb
VY		 1594
1595out_af:
1596 rtnl_af_unregister(&br_af_ops);
3ec8e9f0
VY		 1597 br_mdb_uninit();
1598 return err;
11dc1f36
SH		 1599}
1600
34666d46 1601void br_netlink_fini(void)
11dc1f36 1602{
3ec8e9f0 1603 br_mdb_uninit();
6cbdceeb 1604 rtnl_af_unregister(&br_af_ops);
bb900b27 1605 rtnl_link_unregister(&br_link_ops);
11dc1f36 1606}
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