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Merge branch 'mvpp2-various-improvements'
[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 },
25c71c75 654};
655
656/* Change the state of the port and notify spanning tree */
657static int br_set_port_state(struct net_bridge_port *p, u8 state)
658{
659 if (state > BR_STATE_BLOCKING)
660 return -EINVAL;
661
662 /* if kernel STP is running, don't allow changes */
663 if (p->br->stp_enabled == BR_KERNEL_STP)
664 return -EBUSY;
665
576eb625 666 /* if device is not up, change is not allowed
667 * if link is not present, only allowable state is disabled
668 */
25c71c75 669 if (!netif_running(p->dev) ||
576eb625 670 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
25c71c75 671 return -ENETDOWN;
672
775dd692 673 br_set_state(p, state);
25c71c75 674 br_port_state_selection(p->br);
675 return 0;
676}
677
678/* Set/clear or port flags based on attribute */
3922285d
AS		 679static int br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
680 int attrtype, unsigned long mask)
25c71c75 681{
3922285d
AS		 682 unsigned long flags;
683 int err;
684
685 if (!tb[attrtype])
686 return 0;
687
688 if (nla_get_u8(tb[attrtype]))
689 flags = p->flags | mask;
690 else
691 flags = p->flags & ~mask;
692
693 err = br_switchdev_set_port_flag(p, flags, mask);
694 if (err)
695 return err;
696
697 p->flags = flags;
698 return 0;
25c71c75 699}
700
701/* Process bridge protocol info on port */
702static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
703{
e028e4b8 704 unsigned long old_flags = p->flags;
efa5356b
RP		 705 bool br_vlan_tunnel_old = false;
706 int err;
25c71c75 707
3922285d
AS		 708 err = br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
709 if (err)
710 return err;
711
712 err = br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
713 if (err)
714 return err;
715
716 err = br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
717 if (err)
718 return err;
719
720 err = br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
721 if (err)
722 return err;
723
724 err = br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
725 if (err)
726 return err;
727
728 err = br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
729 if (err)
730 return err;
731
732 err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);
733 if (err)
734 return err;
735
736 err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST, BR_MULTICAST_TO_UNICAST);
737 if (err)
738 return err;
739
740 err = br_set_port_flag(p, tb, IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD);
741 if (err)
742 return err;
743
744 err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
745 if (err)
746 return err;
747
748 err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
749 if (err)
750 return err;
25c71c75 751
efa5356b 752 br_vlan_tunnel_old = (p->flags & BR_VLAN_TUNNEL) ? true : false;
3922285d
AS		 753 err = br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL);
754 if (err)
755 return err;
756
efa5356b
RP		 757 if (br_vlan_tunnel_old && !(p->flags & BR_VLAN_TUNNEL))
758 nbp_vlan_tunnel_info_flush(p);
759
25c71c75 760 if (tb[IFLA_BRPORT_COST]) {
761 err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
762 if (err)
763 return err;
764 }
765
766 if (tb[IFLA_BRPORT_PRIORITY]) {
767 err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
768 if (err)
769 return err;
770 }
771
772 if (tb[IFLA_BRPORT_STATE]) {
773 err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
774 if (err)
775 return err;
776 }
e028e4b8 777
9b0c6e4d
NA		 778 if (tb[IFLA_BRPORT_FLUSH])
779 br_fdb_delete_by_port(p->br, p, 0, 0);
780
5d6ae479
NA		 781#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
782 if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {
783 u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);
784
785 err = br_multicast_set_port_router(p, mcast_router);
786 if (err)
787 return err;
788 }
789#endif
5af48b59
NA		 790
791 if (tb[IFLA_BRPORT_GROUP_FWD_MASK]) {
792 u16 fwd_mask = nla_get_u16(tb[IFLA_BRPORT_GROUP_FWD_MASK]);
793
794 if (fwd_mask & BR_GROUPFWD_MACPAUSE)
795 return -EINVAL;
796 p->group_fwd_mask = fwd_mask;
797 }
798
821f1b21
RP		 799 err = br_set_port_flag(p, tb, IFLA_BRPORT_NEIGH_SUPPRESS,
800 BR_NEIGH_SUPPRESS);
801 if (err)
802 return err;
803
e028e4b8 804 br_port_flags_change(p, old_flags ^ p->flags);
25c71c75 805 return 0;
806}
807
808/* Change state and parameters on port. */
add511b3 809int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
11dc1f36 810{
74685962 811 struct nlattr *protinfo;
407af329 812 struct nlattr *afspec;
11dc1f36 813 struct net_bridge_port *p;
2062cc20 814 struct nlattr *tb[IFLA_BRPORT_MAX + 1];
e19b42a1 815 bool changed = false;
41c498b9 816 int err = 0;
11dc1f36 817
c60ee67f
H		 818 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO);
819 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329 820 if (!protinfo && !afspec)
25c71c75 821 return 0;
11dc1f36 822
ec1e5610 823 p = br_port_get_rtnl(dev);
407af329 824 /* We want to accept dev as bridge itself if the AF_SPEC
8e3bff96 825 * is set to see if someone is setting vlan info on the bridge
407af329 826 */
7b99a993 827 if (!p && !afspec)
b5ed54e9 828 return -EINVAL;
11dc1f36 829
407af329
VY		 830 if (p && protinfo) {
831 if (protinfo->nla_type & NLA_F_NESTED) {
fceb6435
JB		 832 err = nla_parse_nested(tb, IFLA_BRPORT_MAX, protinfo,
833 br_port_policy, NULL);
407af329
VY		 834 if (err)
835 return err;
836
837 spin_lock_bh(&p->br->lock);
838 err = br_setport(p, tb);
839 spin_unlock_bh(&p->br->lock);
840 } else {
8e3bff96 841 /* Binary compatibility with old RSTP */
407af329
VY		 842 if (nla_len(protinfo) < sizeof(u8))
843 return -EINVAL;
844
845 spin_lock_bh(&p->br->lock);
846 err = br_set_port_state(p, nla_get_u8(protinfo));
847 spin_unlock_bh(&p->br->lock);
848 }
25c71c75 849 if (err)
407af329 850 goto out;
e19b42a1 851 changed = true;
407af329 852 }
11dc1f36 853
407af329
VY		 854 if (afspec) {
855 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
e19b42a1 856 afspec, RTM_SETLINK, &changed);
25c71c75 857 }
b03b6dd5 858
e19b42a1 859 if (changed)
25c71c75 860 br_ifinfo_notify(RTM_NEWLINK, p);
407af329 861out:
25c71c75 862 return err;
11dc1f36
SH		 863}
864
407af329 865/* Delete port information */
add511b3 866int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
407af329 867{
407af329
VY		 868 struct nlattr *afspec;
869 struct net_bridge_port *p;
e19b42a1 870 bool changed = false;
8508025c 871 int err = 0;
407af329 872
c60ee67f 873 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329
VY		 874 if (!afspec)
875 return 0;
876
877 p = br_port_get_rtnl(dev);
878 /* We want to accept dev as bridge itself as well */
879 if (!p && !(dev->priv_flags & IFF_EBRIDGE))
880 return -EINVAL;
881
882 err = br_afspec((struct net_bridge *)netdev_priv(dev), p,
e19b42a1
NA		 883 afspec, RTM_DELLINK, &changed);
884 if (changed)
02dba438
RP		 885 /* Send RTM_NEWLINK because userspace
886 * expects RTM_NEWLINK for vlan dels
887 */
888 br_ifinfo_notify(RTM_NEWLINK, p);
407af329
VY		 889
890 return err;
891}
a8b8a889
MS		 892
893static int br_validate(struct nlattr *tb[], struct nlattr *data[],
894 struct netlink_ext_ack *extack)
bb900b27 895{
896 if (tb[IFLA_ADDRESS]) {
897 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
898 return -EINVAL;
899 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
900 return -EADDRNOTAVAIL;
901 }
902
d2d427b3
TM		 903 if (!data)
904 return 0;
905
906#ifdef CONFIG_BRIDGE_VLAN_FILTERING
907 if (data[IFLA_BR_VLAN_PROTOCOL]) {
908 switch (nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])) {
909 case htons(ETH_P_8021Q):
910 case htons(ETH_P_8021AD):
911 break;
912 default:
913 return -EPROTONOSUPPORT;
914 }
915 }
a2858602
TJ		 916
917 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
918 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
919
920 if (defpvid >= VLAN_VID_MASK)
921 return -EINVAL;
922 }
d2d427b3
TM		 923#endif
924
bb900b27 925 return 0;
926}
927
3ac636b8
JP		 928static int br_port_slave_changelink(struct net_device *brdev,
929 struct net_device *dev,
930 struct nlattr *tb[],
17dd0ec4
MS		 931 struct nlattr *data[],
932 struct netlink_ext_ack *extack)
3ac636b8 933{
963ad948
NA		 934 struct net_bridge *br = netdev_priv(brdev);
935 int ret;
936
3ac636b8
JP		 937 if (!data)
938 return 0;
963ad948
NA		 939
940 spin_lock_bh(&br->lock);
941 ret = br_setport(br_port_get_rtnl(dev), data);
942 spin_unlock_bh(&br->lock);
943
944 return ret;
3ac636b8
JP		 945}
946
ced8283f
JP		 947static int br_port_fill_slave_info(struct sk_buff *skb,
948 const struct net_device *brdev,
949 const struct net_device *dev)
950{
951 return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
952}
953
954static size_t br_port_get_slave_size(const struct net_device *brdev,
955 const struct net_device *dev)
956{
957 return br_port_info_size();
958}
959
13323516
JP		 960static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
961 [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
962 [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
963 [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
af615762
JT		 964 [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
965 [IFLA_BR_STP_STATE] = { .type = NLA_U32 },
966 [IFLA_BR_PRIORITY] = { .type = NLA_U16 },
a7854037 967 [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
d2d427b3 968 [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
7910228b 969 [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
111189ab
NA		 970 [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
971 .len = ETH_ALEN },
a9a6bc70 972 [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
89126327 973 [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
295141d9 974 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
ba062d7c 975 [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
431db3c0 976 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
858079fd 977 [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
79b859f5 978 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
b89e6bab 979 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
7e4df51e
NA		 980 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
981 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
982 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
983 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
984 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
985 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
93870cc0
NA		 986 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 },
987 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 },
988 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 },
0f963b75 989 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 },
6dada9b1 990 [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 },
1080ab95 991 [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 },
5e923585 992 [IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 },
aa2ae3e7 993 [IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 },
13323516
JP		 994};
995
996static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
ad744b22
MS		 997 struct nlattr *data[],
998 struct netlink_ext_ack *extack)
13323516
JP		 999{
1000 struct net_bridge *br = netdev_priv(brdev);
1001 int err;
1002
1003 if (!data)
1004 return 0;
1005
1006 if (data[IFLA_BR_FORWARD_DELAY]) {
1007 err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
1008 if (err)
1009 return err;
1010 }
1011
1012 if (data[IFLA_BR_HELLO_TIME]) {
1013 err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
1014 if (err)
1015 return err;
1016 }
1017
1018 if (data[IFLA_BR_MAX_AGE]) {
1019 err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
1020 if (err)
1021 return err;
1022 }
1023
af615762 1024 if (data[IFLA_BR_AGEING_TIME]) {
c62987bb
SF		 1025 err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
1026 if (err)
1027 return err;
af615762
JT		 1028 }
1029
1030 if (data[IFLA_BR_STP_STATE]) {
1031 u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
1032
1033 br_stp_set_enabled(br, stp_enabled);
1034 }
1035
1036 if (data[IFLA_BR_PRIORITY]) {
1037 u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]);
1038
1039 br_stp_set_bridge_priority(br, priority);
1040 }
1041
a7854037
NA		 1042 if (data[IFLA_BR_VLAN_FILTERING]) {
1043 u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
1044
1045 err = __br_vlan_filter_toggle(br, vlan_filter);
1046 if (err)
1047 return err;
1048 }
1049
d2d427b3
TM		 1050#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1051 if (data[IFLA_BR_VLAN_PROTOCOL]) {
1052 __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]);
1053
1054 err = __br_vlan_set_proto(br, vlan_proto);
1055 if (err)
1056 return err;
1057 }
0f963b75
NA		 1058
1059 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
1060 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
1061
1062 err = __br_vlan_set_default_pvid(br, defpvid);
1063 if (err)
1064 return err;
1065 }
6dada9b1
NA		 1066
1067 if (data[IFLA_BR_VLAN_STATS_ENABLED]) {
1068 __u8 vlan_stats = nla_get_u8(data[IFLA_BR_VLAN_STATS_ENABLED]);
1069
1070 err = br_vlan_set_stats(br, vlan_stats);
1071 if (err)
1072 return err;
1073 }
d2d427b3
TM		 1074#endif
1075
7910228b
NA		 1076 if (data[IFLA_BR_GROUP_FWD_MASK]) {
1077 u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);
1078
1079 if (fwd_mask & BR_GROUPFWD_RESTRICTED)
1080 return -EINVAL;
1081 br->group_fwd_mask = fwd_mask;
1082 }
1083
111189ab
NA		 1084 if (data[IFLA_BR_GROUP_ADDR]) {
1085 u8 new_addr[ETH_ALEN];
1086
1087 if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
1088 return -EINVAL;
1089 memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
1090 if (!is_link_local_ether_addr(new_addr))
1091 return -EINVAL;
1092 if (new_addr[5] == 1 || /* 802.3x Pause address */
1093 new_addr[5] == 2 || /* 802.3ad Slow protocols */
1094 new_addr[5] == 3) /* 802.1X PAE address */
1095 return -EINVAL;
1096 spin_lock_bh(&br->lock);
1097 memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
1098 spin_unlock_bh(&br->lock);
1099 br->group_addr_set = true;
1100 br_recalculate_fwd_mask(br);
1101 }
1102
150217c6
NA		 1103 if (data[IFLA_BR_FDB_FLUSH])
1104 br_fdb_flush(br);
1105
a9a6bc70
NA		 1106#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1107 if (data[IFLA_BR_MCAST_ROUTER]) {
1108 u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]);
1109
1110 err = br_multicast_set_router(br, multicast_router);
1111 if (err)
1112 return err;
1113 }
89126327
NA		 1114
1115 if (data[IFLA_BR_MCAST_SNOOPING]) {
1116 u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
1117
1118 err = br_multicast_toggle(br, mcast_snooping);
1119 if (err)
1120 return err;
1121 }
295141d9
NA		 1122
1123 if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {
1124 u8 val;
1125
1126 val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
1127 br->multicast_query_use_ifaddr = !!val;
1128 }
ba062d7c
NA		 1129
1130 if (data[IFLA_BR_MCAST_QUERIER]) {
1131 u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
1132
1133 err = br_multicast_set_querier(br, mcast_querier);
1134 if (err)
1135 return err;
1136 }
431db3c0
NA		 1137
1138 if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) {
1139 u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]);
1140
1141 br->hash_elasticity = val;
1142 }
858079fd
NA		 1143
1144 if (data[IFLA_BR_MCAST_HASH_MAX]) {
1145 u32 hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]);
1146
1147 err = br_multicast_set_hash_max(br, hash_max);
1148 if (err)
1149 return err;
1150 }
79b859f5
NA		 1151
1152 if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
1153 u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
1154
1155 br->multicast_last_member_count = val;
1156 }
b89e6bab
NA		 1157
1158 if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
1159 u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
1160
1161 br->multicast_startup_query_count = val;
1162 }
7e4df51e
NA		 1163
1164 if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
1165 u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
1166
1167 br->multicast_last_member_interval = clock_t_to_jiffies(val);
1168 }
1169
1170 if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
1171 u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
1172
1173 br->multicast_membership_interval = clock_t_to_jiffies(val);
1174 }
1175
1176 if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
1177 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
1178
1179 br->multicast_querier_interval = clock_t_to_jiffies(val);
1180 }
1181
1182 if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
1183 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
1184
1185 br->multicast_query_interval = clock_t_to_jiffies(val);
1186 }
1187
1188 if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
1189 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
1190
1191 br->multicast_query_response_interval = clock_t_to_jiffies(val);
1192 }
1193
1194 if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
1195 u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
1196
1197 br->multicast_startup_query_interval = clock_t_to_jiffies(val);
1198 }
1080ab95
NA		 1199
1200 if (data[IFLA_BR_MCAST_STATS_ENABLED]) {
1201 __u8 mcast_stats;
1202
1203 mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]);
1204 br->multicast_stats_enabled = !!mcast_stats;
1205 }
5e923585
NA		 1206
1207 if (data[IFLA_BR_MCAST_IGMP_VERSION]) {
1208 __u8 igmp_version;
1209
1210 igmp_version = nla_get_u8(data[IFLA_BR_MCAST_IGMP_VERSION]);
1211 err = br_multicast_set_igmp_version(br, igmp_version);
1212 if (err)
1213 return err;
1214 }
aa2ae3e7
NA		 1215
1216#if IS_ENABLED(CONFIG_IPV6)
1217 if (data[IFLA_BR_MCAST_MLD_VERSION]) {
1218 __u8 mld_version;
1219
1220 mld_version = nla_get_u8(data[IFLA_BR_MCAST_MLD_VERSION]);
1221 err = br_multicast_set_mld_version(br, mld_version);
1222 if (err)
1223 return err;
1224 }
1225#endif
a9a6bc70 1226#endif
93870cc0
NA		 1227#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1228 if (data[IFLA_BR_NF_CALL_IPTABLES]) {
1229 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]);
1230
1231 br->nf_call_iptables = val ? true : false;
1232 }
1233
1234 if (data[IFLA_BR_NF_CALL_IP6TABLES]) {
1235 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]);
1236
1237 br->nf_call_ip6tables = val ? true : false;
1238 }
1239
1240 if (data[IFLA_BR_NF_CALL_ARPTABLES]) {
1241 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]);
1242
1243 br->nf_call_arptables = val ? true : false;
1244 }
1245#endif
a9a6bc70 1246
13323516
JP		 1247 return 0;
1248}
1249
b6677449 1250static int br_dev_newlink(struct net *src_net, struct net_device *dev,
7a3f4a18
MS		 1251 struct nlattr *tb[], struct nlattr *data[],
1252 struct netlink_ext_ack *extack)
b6677449
IV		 1253{
1254 struct net_bridge *br = netdev_priv(dev);
1255 int err;
1256
1257 if (tb[IFLA_ADDRESS]) {
1258 spin_lock_bh(&br->lock);
1259 br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
1260 spin_unlock_bh(&br->lock);
1261 }
1262
5b8d5429 1263 err = register_netdevice(dev);
b6677449
IV		 1264 if (err)
1265 return err;
1266
ad744b22 1267 err = br_changelink(dev, tb, data, extack);
5b8d5429
IS		 1268 if (err)
1269 unregister_netdevice(dev);
1270 return err;
b6677449
IV		 1271}
1272
e5c3ea5c
JP		 1273static size_t br_get_size(const struct net_device *brdev)
1274{
1275 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1276 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1277 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
af615762
JT		 1278 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1279 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1280 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
a7854037 1281 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
d2d427b3
TM		 1282#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1283 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
0f963b75 1284 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
6dada9b1 1285 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */
d2d427b3 1286#endif
7910228b 1287 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
5127c81f 1288 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
7599a220 1289 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
8762ba68 1290 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
684dd248 1291 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
b89e6bab
NA		 1292 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1293 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
12a0faa3
ND		 1294 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1295 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1296 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1297 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
111189ab 1298 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
a9a6bc70
NA		 1299#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1300 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
89126327 1301 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
295141d9 1302 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
ba062d7c 1303 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
1080ab95 1304 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */
b89e6bab
NA		 1305 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1306 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1307 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1308 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
12a0faa3
ND		 1309 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1310 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1311 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1312 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1313 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1314 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
5e923585 1315 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_IGMP_VERSION */
aa2ae3e7 1316 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_MLD_VERSION */
93870cc0
NA		 1317#endif
1318#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1319 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1320 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1321 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
a9a6bc70 1322#endif
e5c3ea5c
JP		 1323 0;
1324}
1325
1326static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1327{
1328 struct net_bridge *br = netdev_priv(brdev);
1329 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1330 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1331 u32 age_time = jiffies_to_clock_t(br->max_age);
af615762
JT		 1332 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1333 u32 stp_enabled = br->stp_enabled;
1334 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
1f51445a 1335 u8 vlan_enabled = br_vlan_enabled(br->dev);
4917a154
NA		 1336 u64 clockval;
1337
1338 clockval = br_timer_value(&br->hello_timer);
12a0faa3 1339 if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1340 return -EMSGSIZE;
1341 clockval = br_timer_value(&br->tcn_timer);
12a0faa3 1342 if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1343 return -EMSGSIZE;
1344 clockval = br_timer_value(&br->topology_change_timer);
12a0faa3
ND		 1345 if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval,
1346 IFLA_BR_PAD))
4917a154 1347 return -EMSGSIZE;
f7cdee8a 1348 clockval = br_timer_value(&br->gc_work.timer);
12a0faa3 1349 if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD))
4917a154 1350 return -EMSGSIZE;
e5c3ea5c
JP		 1351
1352 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1353 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
af615762
JT		 1354 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1355 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1356 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
a7854037 1357 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
7910228b 1358 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
4917a154
NA		 1359 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1360 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1361 &br->bridge_id) ||
1362 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1363 &br->designated_root) ||
684dd248 1364 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
ed416309
NA		 1365 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1366 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1367 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
d76bd14e 1368 br->topology_change_detected) ||
111189ab 1369 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr))
e5c3ea5c
JP		 1370 return -EMSGSIZE;
1371
d2d427b3 1372#ifdef CONFIG_BRIDGE_VLAN_FILTERING
0f963b75 1373 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
6dada9b1
NA		 1374 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) ||
1375 nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED, br->vlan_stats_enabled))
d2d427b3
TM		 1376 return -EMSGSIZE;
1377#endif
a9a6bc70 1378#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
89126327 1379 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) ||
295141d9
NA		 1380 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||
1381 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
ba062d7c 1382 br->multicast_query_use_ifaddr) ||
431db3c0 1383 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||
1080ab95
NA		 1384 nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED,
1385 br->multicast_stats_enabled) ||
431db3c0 1386 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,
858079fd 1387 br->hash_elasticity) ||
79b859f5
NA		 1388 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1389 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
b89e6bab
NA		 1390 br->multicast_last_member_count) ||
1391 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
5e923585
NA		 1392 br->multicast_startup_query_count) ||
1393 nla_put_u8(skb, IFLA_BR_MCAST_IGMP_VERSION,
1394 br->multicast_igmp_version))
a9a6bc70 1395 return -EMSGSIZE;
aa2ae3e7
NA		 1396#if IS_ENABLED(CONFIG_IPV6)
1397 if (nla_put_u8(skb, IFLA_BR_MCAST_MLD_VERSION,
1398 br->multicast_mld_version))
1399 return -EMSGSIZE;
1400#endif
7e4df51e 1401 clockval = jiffies_to_clock_t(br->multicast_last_member_interval);
12a0faa3
ND		 1402 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval,
1403 IFLA_BR_PAD))
7e4df51e
NA		 1404 return -EMSGSIZE;
1405 clockval = jiffies_to_clock_t(br->multicast_membership_interval);
12a0faa3
ND		 1406 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval,
1407 IFLA_BR_PAD))
7e4df51e
NA		 1408 return -EMSGSIZE;
1409 clockval = jiffies_to_clock_t(br->multicast_querier_interval);
12a0faa3
ND		 1410 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval,
1411 IFLA_BR_PAD))
7e4df51e
NA		 1412 return -EMSGSIZE;
1413 clockval = jiffies_to_clock_t(br->multicast_query_interval);
12a0faa3
ND		 1414 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval,
1415 IFLA_BR_PAD))
7e4df51e
NA		 1416 return -EMSGSIZE;
1417 clockval = jiffies_to_clock_t(br->multicast_query_response_interval);
12a0faa3
ND		 1418 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval,
1419 IFLA_BR_PAD))
7e4df51e
NA		 1420 return -EMSGSIZE;
1421 clockval = jiffies_to_clock_t(br->multicast_startup_query_interval);
12a0faa3
ND		 1422 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval,
1423 IFLA_BR_PAD))
7e4df51e 1424 return -EMSGSIZE;
a9a6bc70 1425#endif
93870cc0
NA		 1426#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1427 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
1428 br->nf_call_iptables ? 1 : 0) ||
1429 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
1430 br->nf_call_ip6tables ? 1 : 0) ||
1431 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
1432 br->nf_call_arptables ? 1 : 0))
1433 return -EMSGSIZE;
1434#endif
a9a6bc70 1435
e5c3ea5c
JP		 1436 return 0;
1437}
1438
d5ff8c41 1439static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
a60c0903 1440{
d5ff8c41 1441 struct net_bridge_port *p = NULL;
a60c0903
NA		 1442 struct net_bridge_vlan_group *vg;
1443 struct net_bridge_vlan *v;
d5ff8c41 1444 struct net_bridge *br;
a60c0903
NA		 1445 int numvls = 0;
1446
d5ff8c41
NA		 1447 switch (attr) {
1448 case IFLA_STATS_LINK_XSTATS:
1449 br = netdev_priv(dev);
1450 vg = br_vlan_group(br);
1451 break;
1452 case IFLA_STATS_LINK_XSTATS_SLAVE:
1453 p = br_port_get_rtnl(dev);
1454 if (!p)
1455 return 0;
1456 br = p->br;
1457 vg = nbp_vlan_group(p);
1458 break;
1459 default:
1460 return 0;
1461 }
1462
1080ab95
NA		 1463 if (vg) {
1464 /* we need to count all, even placeholder entries */
1465 list_for_each_entry(v, &vg->vlan_list, vlist)
1466 numvls++;
1467 }
a60c0903 1468
a60c0903 1469 return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
1080ab95 1470 nla_total_size(sizeof(struct br_mcast_stats)) +
a60c0903
NA		 1471 nla_total_size(0);
1472}
1473
d5ff8c41
NA		 1474static int br_fill_linkxstats(struct sk_buff *skb,
1475 const struct net_device *dev,
1476 int *prividx, int attr)
80e73cc5 1477{
d5ff8c41
NA		 1478 struct nlattr *nla __maybe_unused;
1479 struct net_bridge_port *p = NULL;
1480 struct net_bridge_vlan_group *vg;
1481 struct net_bridge_vlan *v;
1482 struct net_bridge *br;
1483 struct nlattr *nest;
1484 int vl_idx = 0;
80e73cc5
NA		 1485
1486 switch (attr) {
1487 case IFLA_STATS_LINK_XSTATS:
d5ff8c41
NA		 1488 br = netdev_priv(dev);
1489 vg = br_vlan_group(br);
80e73cc5
NA		 1490 break;
1491 case IFLA_STATS_LINK_XSTATS_SLAVE:
d5ff8c41
NA		 1492 p = br_port_get_rtnl(dev);
1493 if (!p)
1494 return 0;
1495 br = p->br;
1496 vg = nbp_vlan_group(p);
80e73cc5 1497 break;
d5ff8c41
NA		 1498 default:
1499 return -EINVAL;
80e73cc5
NA		 1500 }
1501
a60c0903
NA		 1502 nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE);
1503 if (!nest)
1504 return -EMSGSIZE;
a60c0903 1505
1080ab95 1506 if (vg) {
72f4af4e
NA		 1507 u16 pvid;
1508
1509 pvid = br_get_pvid(vg);
1080ab95
NA		 1510 list_for_each_entry(v, &vg->vlan_list, vlist) {
1511 struct bridge_vlan_xstats vxi;
1512 struct br_vlan_stats stats;
1513
1514 if (++vl_idx < *prividx)
1515 continue;
1516 memset(&vxi, 0, sizeof(vxi));
1517 vxi.vid = v->vid;
61ba1a2d 1518 vxi.flags = v->flags;
72f4af4e
NA		 1519 if (v->vid == pvid)
1520 vxi.flags |= BRIDGE_VLAN_INFO_PVID;
1080ab95
NA		 1521 br_vlan_get_stats(v, &stats);
1522 vxi.rx_bytes = stats.rx_bytes;
1523 vxi.rx_packets = stats.rx_packets;
1524 vxi.tx_bytes = stats.tx_bytes;
1525 vxi.tx_packets = stats.tx_packets;
1526
1527 if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi))
1528 goto nla_put_failure;
1529 }
1530 }
1531
1532#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1533 if (++vl_idx >= *prividx) {
1534 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST,
1535 sizeof(struct br_mcast_stats),
1536 BRIDGE_XSTATS_PAD);
1537 if (!nla)
a60c0903 1538 goto nla_put_failure;
d5ff8c41 1539 br_multicast_get_stats(br, p, nla_data(nla));
a60c0903 1540 }
1080ab95 1541#endif
a60c0903
NA		 1542 nla_nest_end(skb, nest);
1543 *prividx = 0;
1080ab95 1544
a60c0903
NA		 1545 return 0;
1546
1547nla_put_failure:
1548 nla_nest_end(skb, nest);
1549 *prividx = vl_idx;
1550
1551 return -EMSGSIZE;
1552}
fed0a159 1553
207895fd 1554static struct rtnl_af_ops br_af_ops __read_mostly = {
6cbdceeb 1555 .family = AF_BRIDGE,
b1974ed0 1556 .get_link_af_size = br_get_link_af_size_filtered,
6cbdceeb
VY		 1557};
1558
149ddd83 1559struct rtnl_link_ops br_link_ops __read_mostly = {
ced8283f
JP		 1560 .kind = "bridge",
1561 .priv_size = sizeof(struct net_bridge),
1562 .setup = br_dev_setup,
eb4cb851 1563 .maxtype = IFLA_BR_MAX,
13323516 1564 .policy = br_policy,
ced8283f
JP		 1565 .validate = br_validate,
1566 .newlink = br_dev_newlink,
13323516 1567 .changelink = br_changelink,
ced8283f 1568 .dellink = br_dev_delete,
e5c3ea5c
JP		 1569 .get_size = br_get_size,
1570 .fill_info = br_fill_info,
a60c0903
NA		 1571 .fill_linkxstats = br_fill_linkxstats,
1572 .get_linkxstats_size = br_get_linkxstats_size,
3ac636b8
JP		 1573
1574 .slave_maxtype = IFLA_BRPORT_MAX,
1575 .slave_policy = br_port_policy,
1576 .slave_changelink = br_port_slave_changelink,
ced8283f
JP		 1577 .get_slave_size = br_port_get_slave_size,
1578 .fill_slave_info = br_port_fill_slave_info,
bb900b27 1579};
11dc1f36 1580
32fe21c0 1581int __init br_netlink_init(void)
11dc1f36 1582{
3ec8e9f0
VY		 1583 int err;
1584
1585 br_mdb_init();
3678a9d8 1586 rtnl_af_register(&br_af_ops);
3ec8e9f0 1587
6cbdceeb
VY		 1588 err = rtnl_link_register(&br_link_ops);
1589 if (err)
1590 goto out_af;
1591
3ec8e9f0 1592 return 0;
6cbdceeb
VY		 1593
1594out_af:
1595 rtnl_af_unregister(&br_af_ops);
3ec8e9f0
VY		 1596 br_mdb_uninit();
1597 return err;
11dc1f36
SH		 1598}
1599
34666d46 1600void br_netlink_fini(void)
11dc1f36 1601{
3ec8e9f0 1602 br_mdb_uninit();
6cbdceeb 1603 rtnl_af_unregister(&br_af_ops);
bb900b27 1604 rtnl_link_unregister(&br_link_ops);
11dc1f36 1605}
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