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Merge branch 'sparx5-PSFP-support'
[linux-block.git] / net / bridge / br_netlink.c
CommitLineData
2874c5fd 1// SPDX-License-Identifier: GPL-2.0-or-later
11dc1f36
SH		 2/*
3 * Bridge netlink control interface
4 *
5 * Authors:
6 * Stephen Hemminger <shemminger@osdl.org>
11dc1f36
SH		 7 */
8
9#include <linux/kernel.h>
5a0e3ad6 10#include <linux/slab.h>
bb900b27 11#include <linux/etherdevice.h>
32fe21c0 12#include <net/rtnetlink.h>
881d966b 13#include <net/net_namespace.h>
b854272b 14#include <net/sock.h>
407af329 15#include <uapi/linux/if_bridge.h>
bb900b27 16
11dc1f36 17#include "br_private.h"
b03b6dd5 18#include "br_private_stp.h"
5e312fc0 19#include "br_private_cfm.h"
efa5356b 20#include "br_private_tunnel.h"
2dba407f 21#include "br_private_mcast_eht.h"
11dc1f36 22
2594e906 23static int __get_num_vlan_infos(struct net_bridge_vlan_group *vg,
77751ee8 24 u32 filter_mask)
fed0a159 25{
2594e906
NA		 26 struct net_bridge_vlan *v;
27 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 28 u16 flags, pvid;
fed0a159
RP		 29 int num_vlans = 0;
30
fed0a159
RP		 31 if (!(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
32 return 0;
33
77751ee8 34 pvid = br_get_pvid(vg);
2594e906 35 /* Count number of vlan infos */
586c2b57 36 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
fed0a159 37 flags = 0;
2594e906
NA		 38 /* only a context, bridge vlan not activated */
39 if (!br_vlan_should_use(v))
40 continue;
41 if (v->vid == pvid)
fed0a159
RP		 42 flags |= BRIDGE_VLAN_INFO_PVID;
43
2594e906 44 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
fed0a159
RP		 45 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
46
47 if (vid_range_start == 0) {
48 goto initvars;
2594e906 49 } else if ((v->vid - vid_range_end) == 1 &&
fed0a159 50 flags == vid_range_flags) {
2594e906 51 vid_range_end = v->vid;
fed0a159
RP		 52 continue;
53 } else {
54 if ((vid_range_end - vid_range_start) > 0)
55 num_vlans += 2;
56 else
57 num_vlans += 1;
58 }
59initvars:
2594e906
NA		 60 vid_range_start = v->vid;
61 vid_range_end = v->vid;
fed0a159
RP		 62 vid_range_flags = flags;
63 }
64
65 if (vid_range_start != 0) {
66 if ((vid_range_end - vid_range_start) > 0)
67 num_vlans += 2;
68 else
69 num_vlans += 1;
70 }
71
72 return num_vlans;
73}
74
2594e906 75static int br_get_num_vlan_infos(struct net_bridge_vlan_group *vg,
77751ee8 76 u32 filter_mask)
2594e906 77{
586c2b57
NA		 78 int num_vlans;
79
2594e906
NA		 80 if (!vg)
81 return 0;
82
83 if (filter_mask & RTEXT_FILTER_BRVLAN)
84 return vg->num_vlans;
85
586c2b57
NA		 86 rcu_read_lock();
87 num_vlans = __get_num_vlan_infos(vg, filter_mask);
88 rcu_read_unlock();
89
90 return num_vlans;
2594e906
NA		 91}
92
fed0a159
RP		 93static size_t br_get_link_af_size_filtered(const struct net_device *dev,
94 u32 filter_mask)
b7853d73 95{
2594e906 96 struct net_bridge_vlan_group *vg = NULL;
efa5356b 97 struct net_bridge_port *p = NULL;
b6d0425b
HB		 98 struct net_bridge *br = NULL;
99 u32 num_cfm_peer_mep_infos;
100 u32 num_cfm_mep_infos;
efa5356b 101 size_t vinfo_sz = 0;
b6d0425b 102 int num_vlan_infos;
b7853d73 103
2f56f6be 104 rcu_read_lock();
35f861e3 105 if (netif_is_bridge_port(dev)) {
59259ff7
ZZ		 106 p = br_port_get_check_rcu(dev);
107 if (p)
108 vg = nbp_vlan_group_rcu(p);
254ec036 109 } else if (netif_is_bridge_master(dev)) {
2594e906 110 br = netdev_priv(dev);
907b1e6e 111 vg = br_vlan_group_rcu(br);
2594e906 112 }
77751ee8 113 num_vlan_infos = br_get_num_vlan_infos(vg, filter_mask);
2f56f6be 114 rcu_read_unlock();
b7853d73 115
efa5356b
RP		 116 if (p && (p->flags & BR_VLAN_TUNNEL))
117 vinfo_sz += br_get_vlan_tunnel_info_size(vg);
118
b7853d73 119 /* Each VLAN is returned in bridge_vlan_info along with flags */
efa5356b
RP		 120 vinfo_sz += num_vlan_infos * nla_total_size(sizeof(struct bridge_vlan_info));
121
a911ad18 122 if (p && vg && (filter_mask & RTEXT_FILTER_MST))
122c2948
TW		 123 vinfo_sz += br_mst_info_size(vg);
124
b6d0425b
HB		 125 if (!(filter_mask & RTEXT_FILTER_CFM_STATUS))
126 return vinfo_sz;
127
128 if (!br)
129 return vinfo_sz;
130
131 /* CFM status info must be added */
132 br_cfm_mep_count(br, &num_cfm_mep_infos);
133 br_cfm_peer_mep_count(br, &num_cfm_peer_mep_infos);
134
135 vinfo_sz += nla_total_size(0); /* IFLA_BRIDGE_CFM */
136 /* For each status struct the MEP instance (u32) is added */
137 /* MEP instance (u32) + br_cfm_mep_status */
138 vinfo_sz += num_cfm_mep_infos *
139 /*IFLA_BRIDGE_CFM_MEP_STATUS_INSTANCE */
140 (nla_total_size(sizeof(u32))
141 /* IFLA_BRIDGE_CFM_MEP_STATUS_OPCODE_UNEXP_SEEN */
142 + nla_total_size(sizeof(u32))
143 /* IFLA_BRIDGE_CFM_MEP_STATUS_VERSION_UNEXP_SEEN */
144 + nla_total_size(sizeof(u32))
145 /* IFLA_BRIDGE_CFM_MEP_STATUS_RX_LEVEL_LOW_SEEN */
146 + nla_total_size(sizeof(u32)));
147 /* MEP instance (u32) + br_cfm_cc_peer_status */
148 vinfo_sz += num_cfm_peer_mep_infos *
149 /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_INSTANCE */
150 (nla_total_size(sizeof(u32))
151 /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_PEER_MEPID */
152 + nla_total_size(sizeof(u32))
153 /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_CCM_DEFECT */
154 + nla_total_size(sizeof(u32))
155 /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_RDI */
156 + nla_total_size(sizeof(u32))
157 /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_PORT_TLV_VALUE */
158 + nla_total_size(sizeof(u8))
159 /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_IF_TLV_VALUE */
160 + nla_total_size(sizeof(u8))
161 /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEEN */
162 + nla_total_size(sizeof(u32))
163 /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_TLV_SEEN */
164 + nla_total_size(sizeof(u32))
165 /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEQ_UNEXP_SEEN */
166 + nla_total_size(sizeof(u32)));
167
efa5356b 168 return vinfo_sz;
b7853d73
RP		 169}
170
25c71c75 171static inline size_t br_port_info_size(void)
172{
173 return nla_total_size(1) /* IFLA_BRPORT_STATE */
174 + nla_total_size(2) /* IFLA_BRPORT_PRIORITY */
175 + nla_total_size(4) /* IFLA_BRPORT_COST */
176 + nla_total_size(1) /* IFLA_BRPORT_MODE */
a2e01a65 177 + nla_total_size(1) /* IFLA_BRPORT_GUARD */
1007dd1a 178 + nla_total_size(1) /* IFLA_BRPORT_PROTECT */
3da889b6 179 + nla_total_size(1) /* IFLA_BRPORT_FAST_LEAVE */
6db6f0ea 180 + nla_total_size(1) /* IFLA_BRPORT_MCAST_TO_UCAST */
9ba18891 181 + nla_total_size(1) /* IFLA_BRPORT_LEARNING */
867a5943 182 + nla_total_size(1) /* IFLA_BRPORT_UNICAST_FLOOD */
9051247d
TK		 183 + nla_total_size(1) /* IFLA_BRPORT_MCAST_FLOOD */
184 + nla_total_size(1) /* IFLA_BRPORT_BCAST_FLOOD */
355b9f9d 185 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP */
786c2077 186 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP_WIFI */
efa5356b 187 + nla_total_size(1) /* IFLA_BRPORT_VLAN_TUNNEL */
821f1b21 188 + nla_total_size(1) /* IFLA_BRPORT_NEIGH_SUPPRESS */
7d850abd 189 + nla_total_size(1) /* IFLA_BRPORT_ISOLATED */
a21d9a67 190 + nla_total_size(1) /* IFLA_BRPORT_LOCKED */
a35ec8e3 191 + nla_total_size(1) /* IFLA_BRPORT_MAB */
4ebc7660 192 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
80df9a26 193 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */
96f94e7f
NA		 194 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */
195 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */
42d452c4
NA		 196 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_ID */
197 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_NO */
e08e838a
NA		 198 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */
199 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_CONFIG_PENDING */
12a0faa3
ND		 200 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */
201 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */
202 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_HOLD_TIMER */
5d6ae479
NA		 203#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
204 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MULTICAST_ROUTER */
205#endif
5af48b59 206 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_GROUP_FWD_MASK */
3e54442c 207 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MRP_RING_OPEN */
ffb3adba 208 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MRP_IN_OPEN */
2dba407f
NA		 209 + nla_total_size(sizeof(u32)) /* IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT */
210 + nla_total_size(sizeof(u32)) /* IFLA_BRPORT_MCAST_EHT_HOSTS_CNT */
25c71c75 211 + 0;
212}
213
fed0a159 214static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask)
339bf98f
TG		 215{
216 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
25c71c75 217 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
218 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
219 + nla_total_size(4) /* IFLA_MASTER */
220 + nla_total_size(4) /* IFLA_MTU */
221 + nla_total_size(4) /* IFLA_LINK */
222 + nla_total_size(1) /* IFLA_OPERSTATE */
b7853d73 223 + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */
fed0a159 224 + nla_total_size(br_get_link_af_size_filtered(dev,
2756f68c
NA		 225 filter_mask)) /* IFLA_AF_SPEC */
226 + nla_total_size(4); /* IFLA_BRPORT_BACKUP_PORT */
25c71c75 227}
228
229static int br_port_fill_attrs(struct sk_buff *skb,
230 const struct net_bridge_port *p)
231{
232 u8 mode = !!(p->flags & BR_HAIRPIN_MODE);
2756f68c 233 struct net_bridge_port *backup_p;
61c0a9a8 234 u64 timerval;
25c71c75 235
236 if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
237 nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) ||
238 nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) ||
a2e01a65 239 nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
1007dd1a 240 nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
b6cb5ac8
NA		 241 nla_put_u8(skb, IFLA_BRPORT_PROTECT,
242 !!(p->flags & BR_ROOT_BLOCK)) ||
243 nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE,
244 !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||
6db6f0ea
FF		 245 nla_put_u8(skb, IFLA_BRPORT_MCAST_TO_UCAST,
246 !!(p->flags & BR_MULTICAST_TO_UNICAST)) ||
867a5943 247 nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) ||
b6cb5ac8
NA		 248 nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD,
249 !!(p->flags & BR_FLOOD)) ||
250 nla_put_u8(skb, IFLA_BRPORT_MCAST_FLOOD,
251 !!(p->flags & BR_MCAST_FLOOD)) ||
99f906e9
MM		 252 nla_put_u8(skb, IFLA_BRPORT_BCAST_FLOOD,
253 !!(p->flags & BR_BCAST_FLOOD)) ||
842a9ae0
JM		 254 nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) ||
255 nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI,
4ebc7660
NA		 256 !!(p->flags & BR_PROXYARP_WIFI)) ||
257 nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
80df9a26
NA		 258 &p->designated_root) ||
259 nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id),
96f94e7f
NA		 260 &p->designated_bridge) ||
261 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) ||
42d452c4
NA		 262 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost) ||
263 nla_put_u16(skb, IFLA_BRPORT_ID, p->port_id) ||
e08e838a
NA		 264 nla_put_u16(skb, IFLA_BRPORT_NO, p->port_no) ||
265 nla_put_u8(skb, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
266 p->topology_change_ack) ||
efa5356b
RP		 267 nla_put_u8(skb, IFLA_BRPORT_CONFIG_PENDING, p->config_pending) ||
268 nla_put_u8(skb, IFLA_BRPORT_VLAN_TUNNEL, !!(p->flags &
5af48b59 269 BR_VLAN_TUNNEL)) ||
821f1b21
RP		 270 nla_put_u16(skb, IFLA_BRPORT_GROUP_FWD_MASK, p->group_fwd_mask) ||
271 nla_put_u8(skb, IFLA_BRPORT_NEIGH_SUPPRESS,
7d850abd 272 !!(p->flags & BR_NEIGH_SUPPRESS)) ||
3e54442c
HV		 273 nla_put_u8(skb, IFLA_BRPORT_MRP_RING_OPEN, !!(p->flags &
274 BR_MRP_LOST_CONT)) ||
ffb3adba
HV		 275 nla_put_u8(skb, IFLA_BRPORT_MRP_IN_OPEN,
276 !!(p->flags & BR_MRP_LOST_IN_CONT)) ||
a21d9a67 277 nla_put_u8(skb, IFLA_BRPORT_ISOLATED, !!(p->flags & BR_ISOLATED)) ||
a35ec8e3
HS		 278 nla_put_u8(skb, IFLA_BRPORT_LOCKED, !!(p->flags & BR_PORT_LOCKED)) ||
279 nla_put_u8(skb, IFLA_BRPORT_MAB, !!(p->flags & BR_PORT_MAB)))
25c71c75 280 return -EMSGSIZE;
281
61c0a9a8 282 timerval = br_timer_value(&p->message_age_timer);
12a0faa3
ND		 283 if (nla_put_u64_64bit(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval,
284 IFLA_BRPORT_PAD))
61c0a9a8
NA		 285 return -EMSGSIZE;
286 timerval = br_timer_value(&p->forward_delay_timer);
12a0faa3
ND		 287 if (nla_put_u64_64bit(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval,
288 IFLA_BRPORT_PAD))
61c0a9a8
NA		 289 return -EMSGSIZE;
290 timerval = br_timer_value(&p->hold_timer);
12a0faa3
ND		 291 if (nla_put_u64_64bit(skb, IFLA_BRPORT_HOLD_TIMER, timerval,
292 IFLA_BRPORT_PAD))
61c0a9a8
NA		 293 return -EMSGSIZE;
294
5d6ae479
NA		 295#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
296 if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
9632233e 297 p->multicast_ctx.multicast_router) ||
2dba407f
NA		 298 nla_put_u32(skb, IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT,
299 p->multicast_eht_hosts_limit) ||
300 nla_put_u32(skb, IFLA_BRPORT_MCAST_EHT_HOSTS_CNT,
301 p->multicast_eht_hosts_cnt))
5d6ae479
NA		 302 return -EMSGSIZE;
303#endif
304
2756f68c
NA		 305 /* we might be called only with br->lock */
306 rcu_read_lock();
307 backup_p = rcu_dereference(p->backup_port);
308 if (backup_p)
309 nla_put_u32(skb, IFLA_BRPORT_BACKUP_PORT,
310 backup_p->dev->ifindex);
311 rcu_read_unlock();
312
25c71c75 313 return 0;
339bf98f
TG		 314}
315
36cd0ffb
RP		 316static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start,
317 u16 vid_end, u16 flags)
318{
319 struct bridge_vlan_info vinfo;
320
321 if ((vid_end - vid_start) > 0) {
322 /* add range to skb */
323 vinfo.vid = vid_start;
324 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN;
325 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
326 sizeof(vinfo), &vinfo))
327 goto nla_put_failure;
328
36cd0ffb
RP		 329 vinfo.vid = vid_end;
330 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END;
331 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
332 sizeof(vinfo), &vinfo))
333 goto nla_put_failure;
334 } else {
335 vinfo.vid = vid_start;
336 vinfo.flags = flags;
337 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
338 sizeof(vinfo), &vinfo))
339 goto nla_put_failure;
340 }
341
342 return 0;
343
344nla_put_failure:
345 return -EMSGSIZE;
346}
347
348static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb,
77751ee8 349 struct net_bridge_vlan_group *vg)
36cd0ffb 350{
2594e906
NA		 351 struct net_bridge_vlan *v;
352 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 353 u16 flags, pvid;
36cd0ffb
RP		 354 int err = 0;
355
356 /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan
357 * and mark vlan info with begin and end flags
358 * if vlaninfo represents a range
359 */
77751ee8 360 pvid = br_get_pvid(vg);
e9c953ef 361 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
36cd0ffb 362 flags = 0;
2594e906
NA		 363 if (!br_vlan_should_use(v))
364 continue;
365 if (v->vid == pvid)
36cd0ffb
RP		 366 flags |= BRIDGE_VLAN_INFO_PVID;
367
2594e906 368 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 369 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
370
371 if (vid_range_start == 0) {
372 goto initvars;
2594e906 373 } else if ((v->vid - vid_range_end) == 1 &&
36cd0ffb 374 flags == vid_range_flags) {
2594e906 375 vid_range_end = v->vid;
36cd0ffb
RP		 376 continue;
377 } else {
378 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
379 vid_range_end,
380 vid_range_flags);
381 if (err)
382 return err;
383 }
384
385initvars:
2594e906
NA		 386 vid_range_start = v->vid;
387 vid_range_end = v->vid;
36cd0ffb
RP		 388 vid_range_flags = flags;
389 }
390
0fe6de49
RP		 391 if (vid_range_start != 0) {
392 /* Call it once more to send any left over vlans */
393 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
394 vid_range_end,
395 vid_range_flags);
396 if (err)
397 return err;
398 }
36cd0ffb
RP		 399
400 return 0;
401}
402
403static int br_fill_ifvlaninfo(struct sk_buff *skb,
77751ee8 404 struct net_bridge_vlan_group *vg)
36cd0ffb
RP		 405{
406 struct bridge_vlan_info vinfo;
2594e906 407 struct net_bridge_vlan *v;
77751ee8 408 u16 pvid;
36cd0ffb 409
77751ee8 410 pvid = br_get_pvid(vg);
e9c953ef 411 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
2594e906
NA		 412 if (!br_vlan_should_use(v))
413 continue;
414
415 vinfo.vid = v->vid;
36cd0ffb 416 vinfo.flags = 0;
2594e906 417 if (v->vid == pvid)
36cd0ffb
RP		 418 vinfo.flags |= BRIDGE_VLAN_INFO_PVID;
419
2594e906 420 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 421 vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
422
423 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
424 sizeof(vinfo), &vinfo))
425 goto nla_put_failure;
426 }
427
428 return 0;
429
430nla_put_failure:
431 return -EMSGSIZE;
432}
433
11dc1f36
SH		 434/*
435 * Create one netlink message for one interface
436 * Contains port and master info as well as carrier and bridge state.
437 */
6cbdceeb 438static int br_fill_ifinfo(struct sk_buff *skb,
92899063 439 const struct net_bridge_port *port,
6cbdceeb 440 u32 pid, u32 seq, int event, unsigned int flags,
b6d0425b
HB		 441 u32 filter_mask, const struct net_device *dev,
442 bool getlink)
11dc1f36 443{
92899063 444 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
b6c02ef5 445 struct nlattr *af = NULL;
2594e906 446 struct net_bridge *br;
74685962 447 struct ifinfomsg *hdr;
11dc1f36 448 struct nlmsghdr *nlh;
11dc1f36 449
6cbdceeb
VY		 450 if (port)
451 br = port->br;
452 else
453 br = netdev_priv(dev);
454
28a16c97 455 br_debug(br, "br_fill_info event %d port %s master %s\n",
456 event, dev->name, br->dev->name);
11dc1f36 457
74685962
TG		 458 nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags);
459 if (nlh == NULL)
26932566 460 return -EMSGSIZE;
11dc1f36 461
74685962
TG		 462 hdr = nlmsg_data(nlh);
463 hdr->ifi_family = AF_BRIDGE;
464 hdr->__ifi_pad = 0;
465 hdr->ifi_type = dev->type;
466 hdr->ifi_index = dev->ifindex;
467 hdr->ifi_flags = dev_get_flags(dev);
468 hdr->ifi_change = 0;
11dc1f36 469
2eb812e6
DM		 470 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
471 nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) ||
472 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
473 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
474 (dev->addr_len &&
475 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
a54acb3a
ND		 476 (dev->ifindex != dev_get_iflink(dev) &&
477 nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
2eb812e6 478 goto nla_put_failure;
25c71c75 479
6cbdceeb 480 if (event == RTM_NEWLINK && port) {
f78c6032 481 struct nlattr *nest;
25c71c75 482
f78c6032 483 nest = nla_nest_start(skb, IFLA_PROTINFO);
25c71c75 484 if (nest == NULL || br_port_fill_attrs(skb, port) < 0)
485 goto nla_put_failure;
486 nla_nest_end(skb, nest);
487 }
488
b6c02ef5
HB		 489 if (filter_mask & (RTEXT_FILTER_BRVLAN |
490 RTEXT_FILTER_BRVLAN_COMPRESSED |
5e312fc0 491 RTEXT_FILTER_MRP |
e77824d8 492 RTEXT_FILTER_CFM_CONFIG |
122c2948
TW		 493 RTEXT_FILTER_CFM_STATUS |
494 RTEXT_FILTER_MST)) {
b6c02ef5
HB		 495 af = nla_nest_start_noflag(skb, IFLA_AF_SPEC);
496 if (!af)
497 goto nla_put_failure;
498 }
499
6cbdceeb 500 /* Check if the VID information is requested */
36cd0ffb
RP		 501 if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
502 (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
2594e906 503 struct net_bridge_vlan_group *vg;
36cd0ffb 504 int err;
6cbdceeb 505
e9c953ef
NA		 506 /* RCU needed because of the VLAN locking rules (rcu || rtnl) */
507 rcu_read_lock();
77751ee8 508 if (port)
e9c953ef 509 vg = nbp_vlan_group_rcu(port);
77751ee8 510 else
e9c953ef 511 vg = br_vlan_group_rcu(br);
6cbdceeb 512
e9c953ef
NA		 513 if (!vg || !vg->num_vlans) {
514 rcu_read_unlock();
6cbdceeb 515 goto done;
e9c953ef 516 }
36cd0ffb 517 if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
77751ee8 518 err = br_fill_ifvlaninfo_compressed(skb, vg);
36cd0ffb 519 else
77751ee8 520 err = br_fill_ifvlaninfo(skb, vg);
efa5356b
RP		 521
522 if (port && (port->flags & BR_VLAN_TUNNEL))
523 err = br_fill_vlan_tunnel_info(skb, vg);
e9c953ef 524 rcu_read_unlock();
36cd0ffb
RP		 525 if (err)
526 goto nla_put_failure;
36a8e8e2
HV		 527 }
528
529 if (filter_mask & RTEXT_FILTER_MRP) {
36a8e8e2
HV		 530 int err;
531
532 if (!br_mrp_enabled(br) || port)
533 goto done;
534
36a8e8e2
HV		 535 rcu_read_lock();
536 err = br_mrp_fill_info(skb, br);
537 rcu_read_unlock();
538
539 if (err)
540 goto nla_put_failure;
6cbdceeb
VY		 541 }
542
e77824d8 543 if (filter_mask & (RTEXT_FILTER_CFM_CONFIG | RTEXT_FILTER_CFM_STATUS)) {
5e312fc0
HB		 544 struct nlattr *cfm_nest = NULL;
545 int err;
546
547 if (!br_cfm_created(br) || port)
548 goto done;
549
550 cfm_nest = nla_nest_start(skb, IFLA_BRIDGE_CFM);
551 if (!cfm_nest)
552 goto nla_put_failure;
553
554 if (filter_mask & RTEXT_FILTER_CFM_CONFIG) {
555 rcu_read_lock();
556 err = br_cfm_config_fill_info(skb, br);
557 rcu_read_unlock();
558 if (err)
559 goto nla_put_failure;
560 }
561
e77824d8
HB		 562 if (filter_mask & RTEXT_FILTER_CFM_STATUS) {
563 rcu_read_lock();
b6d0425b 564 err = br_cfm_status_fill_info(skb, br, getlink);
e77824d8
HB		 565 rcu_read_unlock();
566 if (err)
567 goto nla_put_failure;
568 }
569
5e312fc0
HB		 570 nla_nest_end(skb, cfm_nest);
571 }
572
122c2948
TW		 573 if ((filter_mask & RTEXT_FILTER_MST) &&
574 br_opt_get(br, BROPT_MST_ENABLED) && port) {
575 const struct net_bridge_vlan_group *vg = nbp_vlan_group(port);
576 struct nlattr *mst_nest;
577 int err;
578
579 if (!vg || !vg->num_vlans)
580 goto done;
581
582 mst_nest = nla_nest_start(skb, IFLA_BRIDGE_MST);
583 if (!mst_nest)
584 goto nla_put_failure;
585
586 err = br_mst_fill_info(skb, vg);
587 if (err)
588 goto nla_put_failure;
589
590 nla_nest_end(skb, mst_nest);
591 }
592
6cbdceeb 593done:
9b134b16
BP		 594 if (af) {
595 if (nlmsg_get_pos(skb) - (void *)af > nla_attr_size(0))
596 nla_nest_end(skb, af);
597 else
598 nla_nest_cancel(skb, af);
599 }
122c2948 600
053c095a
JB		 601 nlmsg_end(skb, nlh);
602 return 0;
11dc1f36 603
74685962 604nla_put_failure:
26932566
PM		 605 nlmsg_cancel(skb, nlh);
606 return -EMSGSIZE;
11dc1f36
SH		 607}
608
b6d0425b
HB		 609void br_info_notify(int event, const struct net_bridge *br,
610 const struct net_bridge_port *port, u32 filter)
11dc1f36 611{
92899063 612 struct net_device *dev;
11dc1f36 613 struct sk_buff *skb;
280a306c 614 int err = -ENOBUFS;
92899063
NA		 615 struct net *net;
616 u16 port_no = 0;
11dc1f36 617
92899063 618 if (WARN_ON(!port && !br))
407af329
VY		 619 return;
620
92899063
NA		 621 if (port) {
622 dev = port->dev;
623 br = port->br;
624 port_no = port->port_no;
625 } else {
626 dev = br->dev;
627 }
628
629 net = dev_net(dev);
630 br_debug(br, "port %u(%s) event %d\n", port_no, dev->name, event);
28a16c97 631
92899063 632 skb = nlmsg_new(br_nlmsg_size(dev, filter), GFP_ATOMIC);
280a306c
TG		 633 if (skb == NULL)
634 goto errout;
635
b6d0425b 636 err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, dev, false);
26932566
PM		 637 if (err < 0) {
638 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
639 WARN_ON(err == -EMSGSIZE);
640 kfree_skb(skb);
641 goto errout;
642 }
1ce85fe4
PNA		 643 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
644 return;
280a306c 645errout:
87e823b3 646 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
11dc1f36
SH		 647}
648
b6d0425b
HB		 649/* Notify listeners of a change in bridge or port information */
650void br_ifinfo_notify(int event, const struct net_bridge *br,
651 const struct net_bridge_port *port)
652{
653 u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
654
655 return br_info_notify(event, br, port, filter);
656}
657
11dc1f36
SH		 658/*
659 * Dump information about all ports, in response to GETLINK
660 */
e5a55a89 661int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
46c264da 662 struct net_device *dev, u32 filter_mask, int nlflags)
11dc1f36 663{
1fb1754a 664 struct net_bridge_port *port = br_port_get_rtnl(dev);
e5a55a89 665
36cd0ffb 666 if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
36a8e8e2 667 !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED) &&
5e312fc0 668 !(filter_mask & RTEXT_FILTER_MRP) &&
e77824d8
HB		 669 !(filter_mask & RTEXT_FILTER_CFM_CONFIG) &&
670 !(filter_mask & RTEXT_FILTER_CFM_STATUS))
1b846f92 671 return 0;
11dc1f36 672
46c264da 673 return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
b6d0425b 674 filter_mask, dev, true);
11dc1f36
SH		 675}
676
bdced7ef 677static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
169327d5
PM		 678 int cmd, struct bridge_vlan_info *vinfo, bool *changed,
679 struct netlink_ext_ack *extack)
bdced7ef 680{
f418af63 681 bool curr_change;
bdced7ef
RP		 682 int err = 0;
683
684 switch (cmd) {
685 case RTM_SETLINK:
686 if (p) {
2594e906
NA		 687 /* if the MASTER flag is set this will act on the global
688 * per-VLAN entry as well
689 */
f418af63 690 err = nbp_vlan_add(p, vinfo->vid, vinfo->flags,
169327d5 691 &curr_change, extack);
bdced7ef 692 } else {
2594e906 693 vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY;
f418af63 694 err = br_vlan_add(br, vinfo->vid, vinfo->flags,
169327d5 695 &curr_change, extack);
bdced7ef 696 }
f418af63 697 if (curr_change)
e19b42a1 698 *changed = true;
bdced7ef
RP		 699 break;
700
701 case RTM_DELLINK:
702 if (p) {
e19b42a1
NA		 703 if (!nbp_vlan_delete(p, vinfo->vid))
704 *changed = true;
705
706 if ((vinfo->flags & BRIDGE_VLAN_INFO_MASTER) &&
707 !br_vlan_delete(p->br, vinfo->vid))
708 *changed = true;
709 } else if (!br_vlan_delete(br, vinfo->vid)) {
710 *changed = true;
bdced7ef
RP		 711 }
712 break;
713 }
714
715 return err;
716}
407af329 717
f26b2965
NA		 718int br_process_vlan_info(struct net_bridge *br,
719 struct net_bridge_port *p, int cmd,
720 struct bridge_vlan_info *vinfo_curr,
721 struct bridge_vlan_info **vinfo_last,
722 bool *changed,
723 struct netlink_ext_ack *extack)
efa5356b 724{
f545923b
NA		 725 int err, rtm_cmd;
726
8f4cc940 727 if (!br_vlan_valid_id(vinfo_curr->vid, extack))
efa5356b
RP		 728 return -EINVAL;
729
f545923b
NA		 730 /* needed for vlan-only NEWVLAN/DELVLAN notifications */
731 rtm_cmd = br_afspec_cmd_to_rtm(cmd);
732
efa5356b 733 if (vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
8f4cc940 734 if (!br_vlan_valid_range(vinfo_curr, *vinfo_last, extack))
efa5356b
RP		 735 return -EINVAL;
736 *vinfo_last = vinfo_curr;
efa5356b
RP		 737 return 0;
738 }
739
740 if (*vinfo_last) {
741 struct bridge_vlan_info tmp_vinfo;
f545923b 742 int v, v_change_start = 0;
efa5356b 743
8f4cc940 744 if (!br_vlan_valid_range(vinfo_curr, *vinfo_last, extack))
efa5356b
RP		 745 return -EINVAL;
746
747 memcpy(&tmp_vinfo, *vinfo_last,
748 sizeof(struct bridge_vlan_info));
749 for (v = (*vinfo_last)->vid; v <= vinfo_curr->vid; v++) {
f545923b
NA		 750 bool curr_change = false;
751
efa5356b 752 tmp_vinfo.vid = v;
f545923b 753 err = br_vlan_info(br, p, cmd, &tmp_vinfo, &curr_change,
169327d5 754 extack);
efa5356b
RP		 755 if (err)
756 break;
f545923b
NA		 757 if (curr_change) {
758 *changed = curr_change;
759 if (!v_change_start)
760 v_change_start = v;
761 } else {
762 /* nothing to notify yet */
763 if (!v_change_start)
764 continue;
765 br_vlan_notify(br, p, v_change_start,
766 v - 1, rtm_cmd);
767 v_change_start = 0;
768 }
7979457b 769 cond_resched();
efa5356b 770 }
f545923b
NA		 771 /* v_change_start is set only if the last/whole range changed */
772 if (v_change_start)
773 br_vlan_notify(br, p, v_change_start,
774 v - 1, rtm_cmd);
775
efa5356b
RP		 776 *vinfo_last = NULL;
777
66c54517 778 return err;
efa5356b
RP		 779 }
780
f545923b
NA		 781 err = br_vlan_info(br, p, cmd, vinfo_curr, changed, extack);
782 if (*changed)
783 br_vlan_notify(br, p, vinfo_curr->vid, 0, rtm_cmd);
784
785 return err;
efa5356b
RP		 786}
787
407af329
VY		 788static int br_afspec(struct net_bridge *br,
789 struct net_bridge_port *p,
790 struct nlattr *af_spec,
169327d5
PM		 791 int cmd, bool *changed,
792 struct netlink_ext_ack *extack)
407af329 793{
efa5356b
RP		 794 struct bridge_vlan_info *vinfo_curr = NULL;
795 struct bridge_vlan_info *vinfo_last = NULL;
bdced7ef 796 struct nlattr *attr;
efa5356b
RP		 797 struct vtunnel_info tinfo_last = {};
798 struct vtunnel_info tinfo_curr = {};
799 int err = 0, rem;
407af329 800
bdced7ef 801 nla_for_each_nested(attr, af_spec, rem) {
efa5356b
RP		 802 err = 0;
803 switch (nla_type(attr)) {
804 case IFLA_BRIDGE_VLAN_TUNNEL_INFO:
1020ce31 805 if (!p || !(p->flags & BR_VLAN_TUNNEL))
bdced7ef 806 return -EINVAL;
efa5356b
RP		 807 err = br_parse_vlan_tunnel_info(attr, &tinfo_curr);
808 if (err)
809 return err;
810 err = br_process_vlan_tunnel_info(br, p, cmd,
811 &tinfo_curr,
e19b42a1
NA		 812 &tinfo_last,
813 changed);
efa5356b
RP		 814 if (err)
815 return err;
816 break;
817 case IFLA_BRIDGE_VLAN_INFO:
818 if (nla_len(attr) != sizeof(struct bridge_vlan_info))
6623c60d 819 return -EINVAL;
efa5356b
RP		 820 vinfo_curr = nla_data(attr);
821 err = br_process_vlan_info(br, p, cmd, vinfo_curr,
169327d5
PM		 822 &vinfo_last, changed,
823 extack);
efa5356b
RP		 824 if (err)
825 return err;
826 break;
65369933
HV		 827 case IFLA_BRIDGE_MRP:
828 err = br_mrp_parse(br, p, attr, cmd, extack);
829 if (err)
830 return err;
831 break;
2be665c3
HB		 832 case IFLA_BRIDGE_CFM:
833 err = br_cfm_parse(br, p, attr, cmd, extack);
834 if (err)
835 return err;
836 break;
122c2948
TW		 837 case IFLA_BRIDGE_MST:
838 if (!p) {
839 NL_SET_ERR_MSG(extack,
840 "MST states can only be set on bridge ports");
841 return -EINVAL;
842 }
843
844 if (cmd != RTM_SETLINK) {
845 NL_SET_ERR_MSG(extack,
846 "MST states can only be set through RTM_SETLINK");
847 return -EINVAL;
848 }
849
850 err = br_mst_process(p, attr, extack);
851 if (err)
852 return err;
853 break;
bdced7ef 854 }
407af329
VY		 855 }
856
857 return err;
858}
859
3ac636b8 860static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
25c71c75 861 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
862 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
863 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
864 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
a2e01a65 865 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
1007dd1a 866 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
6f705d8c 867 [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 },
9ba18891 868 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
867a5943 869 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
355b9f9d 870 [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 },
786c2077 871 [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },
5d6ae479 872 [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },
6db6f0ea 873 [IFLA_BRPORT_MCAST_TO_UCAST] = { .type = NLA_U8 },
9051247d
TK		 874 [IFLA_BRPORT_MCAST_FLOOD] = { .type = NLA_U8 },
875 [IFLA_BRPORT_BCAST_FLOOD] = { .type = NLA_U8 },
fbec443b 876 [IFLA_BRPORT_VLAN_TUNNEL] = { .type = NLA_U8 },
5af48b59 877 [IFLA_BRPORT_GROUP_FWD_MASK] = { .type = NLA_U16 },
1a3fbd3f 878 [IFLA_BRPORT_NEIGH_SUPPRESS] = { .type = NLA_U8 },
7d850abd 879 [IFLA_BRPORT_ISOLATED] = { .type = NLA_U8 },
a21d9a67 880 [IFLA_BRPORT_LOCKED] = { .type = NLA_U8 },
a35ec8e3 881 [IFLA_BRPORT_MAB] = { .type = NLA_U8 },
2756f68c 882 [IFLA_BRPORT_BACKUP_PORT] = { .type = NLA_U32 },
2dba407f 883 [IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT] = { .type = NLA_U32 },
25c71c75 884};
885
886/* Change the state of the port and notify spanning tree */
887static int br_set_port_state(struct net_bridge_port *p, u8 state)
888{
889 if (state > BR_STATE_BLOCKING)
890 return -EINVAL;
891
892 /* if kernel STP is running, don't allow changes */
893 if (p->br->stp_enabled == BR_KERNEL_STP)
894 return -EBUSY;
895
576eb625 896 /* if device is not up, change is not allowed
897 * if link is not present, only allowable state is disabled
898 */
25c71c75 899 if (!netif_running(p->dev) ||
576eb625 900 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
25c71c75 901 return -ENETDOWN;
902
775dd692 903 br_set_state(p, state);
25c71c75 904 br_port_state_selection(p->br);
905 return 0;
906}
907
908/* Set/clear or port flags based on attribute */
304ae3bf
VO		 909static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
910 int attrtype, unsigned long mask)
25c71c75 911{
3922285d 912 if (!tb[attrtype])
304ae3bf 913 return;
3922285d
AS		 914
915 if (nla_get_u8(tb[attrtype]))
304ae3bf 916 p->flags |= mask;
3922285d 917 else
304ae3bf 918 p->flags &= ~mask;
25c71c75 919}
920
921/* Process bridge protocol info on port */
078bbb85
VO		 922static int br_setport(struct net_bridge_port *p, struct nlattr *tb[],
923 struct netlink_ext_ack *extack)
25c71c75 924{
304ae3bf
VO		 925 unsigned long old_flags, changed_mask;
926 bool br_vlan_tunnel_old;
efa5356b 927 int err;
25c71c75 928
304ae3bf
VO		 929 old_flags = p->flags;
930 br_vlan_tunnel_old = (old_flags & BR_VLAN_TUNNEL) ? true : false;
931
932 br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
933 br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
934 br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE,
935 BR_MULTICAST_FAST_LEAVE);
936 br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
937 br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
938 br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
939 br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);
940 br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST,
941 BR_MULTICAST_TO_UNICAST);
942 br_set_port_flag(p, tb, IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD);
943 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
944 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
945 br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL);
946 br_set_port_flag(p, tb, IFLA_BRPORT_NEIGH_SUPPRESS, BR_NEIGH_SUPPRESS);
947 br_set_port_flag(p, tb, IFLA_BRPORT_ISOLATED, BR_ISOLATED);
a21d9a67 948 br_set_port_flag(p, tb, IFLA_BRPORT_LOCKED, BR_PORT_LOCKED);
a35ec8e3
HS		 949 br_set_port_flag(p, tb, IFLA_BRPORT_MAB, BR_PORT_MAB);
950
951 if ((p->flags & BR_PORT_MAB) &&
952 (!(p->flags & BR_PORT_LOCKED) || !(p->flags & BR_LEARNING))) {
953 NL_SET_ERR_MSG(extack, "Bridge port must be locked and have learning enabled when MAB is enabled");
954 p->flags = old_flags;
955 return -EINVAL;
956 } else if (!(p->flags & BR_PORT_MAB) && (old_flags & BR_PORT_MAB)) {
957 struct net_bridge_fdb_flush_desc desc = {
958 .flags = BIT(BR_FDB_LOCKED),
959 .flags_mask = BIT(BR_FDB_LOCKED),
960 .port_ifindex = p->dev->ifindex,
961 };
962
963 br_fdb_flush(p->br, &desc);
964 }
304ae3bf
VO		 965
966 changed_mask = old_flags ^ p->flags;
967
078bbb85 968 err = br_switchdev_set_port_flag(p, p->flags, changed_mask, extack);
304ae3bf
VO		 969 if (err) {
970 p->flags = old_flags;
3922285d 971 return err;
304ae3bf 972 }
3922285d 973
efa5356b
RP		 974 if (br_vlan_tunnel_old && !(p->flags & BR_VLAN_TUNNEL))
975 nbp_vlan_tunnel_info_flush(p);
976
304ae3bf
VO		 977 br_port_flags_change(p, changed_mask);
978
25c71c75 979 if (tb[IFLA_BRPORT_COST]) {
980 err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
981 if (err)
982 return err;
983 }
984
985 if (tb[IFLA_BRPORT_PRIORITY]) {
986 err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
987 if (err)
988 return err;
989 }
990
991 if (tb[IFLA_BRPORT_STATE]) {
992 err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
993 if (err)
994 return err;
995 }
e028e4b8 996
9b0c6e4d
NA		 997 if (tb[IFLA_BRPORT_FLUSH])
998 br_fdb_delete_by_port(p->br, p, 0, 0);
999
5d6ae479
NA		 1000#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1001 if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {
1002 u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);
1003
a53581d5
NA		 1004 err = br_multicast_set_port_router(&p->multicast_ctx,
1005 mcast_router);
5d6ae479
NA		 1006 if (err)
1007 return err;
1008 }
2dba407f
NA		 1009
1010 if (tb[IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT]) {
1011 u32 hlimit;
1012
1013 hlimit = nla_get_u32(tb[IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT]);
1014 err = br_multicast_eht_set_hosts_limit(p, hlimit);
1015 if (err)
1016 return err;
1017 }
5d6ae479 1018#endif
5af48b59
NA		 1019
1020 if (tb[IFLA_BRPORT_GROUP_FWD_MASK]) {
1021 u16 fwd_mask = nla_get_u16(tb[IFLA_BRPORT_GROUP_FWD_MASK]);
1022
1023 if (fwd_mask & BR_GROUPFWD_MACPAUSE)
1024 return -EINVAL;
1025 p->group_fwd_mask = fwd_mask;
1026 }
1027
2756f68c
NA		 1028 if (tb[IFLA_BRPORT_BACKUP_PORT]) {
1029 struct net_device *backup_dev = NULL;
1030 u32 backup_ifindex;
1031
1032 backup_ifindex = nla_get_u32(tb[IFLA_BRPORT_BACKUP_PORT]);
1033 if (backup_ifindex) {
1034 backup_dev = __dev_get_by_index(dev_net(p->dev),
1035 backup_ifindex);
1036 if (!backup_dev)
1037 return -ENOENT;
1038 }
1039
1040 err = nbp_backup_change(p, backup_dev);
1041 if (err)
1042 return err;
1043 }
1044
25c71c75 1045 return 0;
1046}
1047
1048/* Change state and parameters on port. */
2fd527b7
PM		 1049int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags,
1050 struct netlink_ext_ack *extack)
11dc1f36 1051{
92899063
NA		 1052 struct net_bridge *br = (struct net_bridge *)netdev_priv(dev);
1053 struct nlattr *tb[IFLA_BRPORT_MAX + 1];
1054 struct net_bridge_port *p;
74685962 1055 struct nlattr *protinfo;
407af329 1056 struct nlattr *afspec;
e19b42a1 1057 bool changed = false;
41c498b9 1058 int err = 0;
11dc1f36 1059
c60ee67f
H		 1060 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO);
1061 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329 1062 if (!protinfo && !afspec)
25c71c75 1063 return 0;
11dc1f36 1064
ec1e5610 1065 p = br_port_get_rtnl(dev);
407af329 1066 /* We want to accept dev as bridge itself if the AF_SPEC
8e3bff96 1067 * is set to see if someone is setting vlan info on the bridge
407af329 1068 */
7b99a993 1069 if (!p && !afspec)
b5ed54e9 1070 return -EINVAL;
11dc1f36 1071
407af329
VY		 1072 if (p && protinfo) {
1073 if (protinfo->nla_type & NLA_F_NESTED) {
8cb08174
JB		 1074 err = nla_parse_nested_deprecated(tb, IFLA_BRPORT_MAX,
1075 protinfo,
1076 br_port_policy,
1077 NULL);
407af329
VY		 1078 if (err)
1079 return err;
1080
1081 spin_lock_bh(&p->br->lock);
078bbb85 1082 err = br_setport(p, tb, extack);
407af329
VY		 1083 spin_unlock_bh(&p->br->lock);
1084 } else {
8e3bff96 1085 /* Binary compatibility with old RSTP */
407af329
VY		 1086 if (nla_len(protinfo) < sizeof(u8))
1087 return -EINVAL;
1088
1089 spin_lock_bh(&p->br->lock);
1090 err = br_set_port_state(p, nla_get_u8(protinfo));
1091 spin_unlock_bh(&p->br->lock);
1092 }
25c71c75 1093 if (err)
407af329 1094 goto out;
e19b42a1 1095 changed = true;
407af329 1096 }
11dc1f36 1097
92899063 1098 if (afspec)
169327d5 1099 err = br_afspec(br, p, afspec, RTM_SETLINK, &changed, extack);
b03b6dd5 1100
e19b42a1 1101 if (changed)
92899063 1102 br_ifinfo_notify(RTM_NEWLINK, br, p);
407af329 1103out:
25c71c75 1104 return err;
11dc1f36
SH		 1105}
1106
407af329 1107/* Delete port information */
add511b3 1108int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
407af329 1109{
92899063 1110 struct net_bridge *br = (struct net_bridge *)netdev_priv(dev);
407af329 1111 struct net_bridge_port *p;
92899063 1112 struct nlattr *afspec;
e19b42a1 1113 bool changed = false;
8508025c 1114 int err = 0;
407af329 1115
c60ee67f 1116 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329
VY		 1117 if (!afspec)
1118 return 0;
1119
1120 p = br_port_get_rtnl(dev);
1121 /* We want to accept dev as bridge itself as well */
254ec036 1122 if (!p && !netif_is_bridge_master(dev))
407af329
VY		 1123 return -EINVAL;
1124
169327d5 1125 err = br_afspec(br, p, afspec, RTM_DELLINK, &changed, NULL);
e19b42a1 1126 if (changed)
02dba438
RP		 1127 /* Send RTM_NEWLINK because userspace
1128 * expects RTM_NEWLINK for vlan dels
1129 */
92899063 1130 br_ifinfo_notify(RTM_NEWLINK, br, p);
407af329
VY		 1131
1132 return err;
1133}
a8b8a889
MS		 1134
1135static int br_validate(struct nlattr *tb[], struct nlattr *data[],
1136 struct netlink_ext_ack *extack)
bb900b27 1137{
1138 if (tb[IFLA_ADDRESS]) {
1139 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
1140 return -EINVAL;
1141 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
1142 return -EADDRNOTAVAIL;
1143 }
1144
d2d427b3
TM		 1145 if (!data)
1146 return 0;
1147
1148#ifdef CONFIG_BRIDGE_VLAN_FILTERING
a98c0c47
MD		 1149 if (data[IFLA_BR_VLAN_PROTOCOL] &&
1150 !eth_type_vlan(nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])))
1151 return -EPROTONOSUPPORT;
a2858602
TJ		 1152
1153 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
1154 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
1155
1156 if (defpvid >= VLAN_VID_MASK)
1157 return -EINVAL;
1158 }
d2d427b3
TM		 1159#endif
1160
bb900b27 1161 return 0;
1162}
1163
3ac636b8
JP		 1164static int br_port_slave_changelink(struct net_device *brdev,
1165 struct net_device *dev,
1166 struct nlattr *tb[],
17dd0ec4
MS		 1167 struct nlattr *data[],
1168 struct netlink_ext_ack *extack)
3ac636b8 1169{
963ad948
NA		 1170 struct net_bridge *br = netdev_priv(brdev);
1171 int ret;
1172
3ac636b8
JP		 1173 if (!data)
1174 return 0;
963ad948
NA		 1175
1176 spin_lock_bh(&br->lock);
078bbb85 1177 ret = br_setport(br_port_get_rtnl(dev), data, extack);
963ad948
NA		 1178 spin_unlock_bh(&br->lock);
1179
1180 return ret;
3ac636b8
JP		 1181}
1182
ced8283f
JP		 1183static int br_port_fill_slave_info(struct sk_buff *skb,
1184 const struct net_device *brdev,
1185 const struct net_device *dev)
1186{
1187 return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
1188}
1189
1190static size_t br_port_get_slave_size(const struct net_device *brdev,
1191 const struct net_device *dev)
1192{
1193 return br_port_info_size();
1194}
1195
13323516
JP		 1196static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
1197 [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
1198 [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
1199 [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
af615762
JT		 1200 [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
1201 [IFLA_BR_STP_STATE] = { .type = NLA_U32 },
1202 [IFLA_BR_PRIORITY] = { .type = NLA_U16 },
a7854037 1203 [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
d2d427b3 1204 [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
7910228b 1205 [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
111189ab
NA		 1206 [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
1207 .len = ETH_ALEN },
a9a6bc70 1208 [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
89126327 1209 [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
295141d9 1210 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
ba062d7c 1211 [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
431db3c0 1212 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
858079fd 1213 [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
79b859f5 1214 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
b89e6bab 1215 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
7e4df51e
NA		 1216 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
1217 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
1218 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
1219 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
1220 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
1221 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
93870cc0
NA		 1222 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 },
1223 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 },
1224 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 },
0f963b75 1225 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 },
6dada9b1 1226 [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 },
1080ab95 1227 [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 },
5e923585 1228 [IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 },
aa2ae3e7 1229 [IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 },
9163a0fc 1230 [IFLA_BR_VLAN_STATS_PER_PORT] = { .type = NLA_U8 },
8140860c
JB		 1231 [IFLA_BR_MULTI_BOOLOPT] =
1232 NLA_POLICY_EXACT_LEN(sizeof(struct br_boolopt_multi)),
13323516
JP		 1233};
1234
1235static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
ad744b22
MS		 1236 struct nlattr *data[],
1237 struct netlink_ext_ack *extack)
13323516
JP		 1238{
1239 struct net_bridge *br = netdev_priv(brdev);
1240 int err;
1241
1242 if (!data)
1243 return 0;
1244
1245 if (data[IFLA_BR_FORWARD_DELAY]) {
1246 err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
1247 if (err)
1248 return err;
1249 }
1250
1251 if (data[IFLA_BR_HELLO_TIME]) {
1252 err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
1253 if (err)
1254 return err;
1255 }
1256
1257 if (data[IFLA_BR_MAX_AGE]) {
1258 err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
1259 if (err)
1260 return err;
1261 }
1262
af615762 1263 if (data[IFLA_BR_AGEING_TIME]) {
c62987bb
SF		 1264 err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
1265 if (err)
1266 return err;
af615762
JT		 1267 }
1268
1269 if (data[IFLA_BR_STP_STATE]) {
1270 u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
1271
419dba8a
HV		 1272 err = br_stp_set_enabled(br, stp_enabled, extack);
1273 if (err)
1274 return err;
af615762
JT		 1275 }
1276
1277 if (data[IFLA_BR_PRIORITY]) {
1278 u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]);
1279
1280 br_stp_set_bridge_priority(br, priority);
1281 }
1282
a7854037
NA		 1283 if (data[IFLA_BR_VLAN_FILTERING]) {
1284 u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
1285
9e781401 1286 err = br_vlan_filter_toggle(br, vlan_filter, extack);
a7854037
NA		 1287 if (err)
1288 return err;
1289 }
1290
d2d427b3
TM		 1291#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1292 if (data[IFLA_BR_VLAN_PROTOCOL]) {
1293 __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]);
1294
dcbdf135 1295 err = __br_vlan_set_proto(br, vlan_proto, extack);
d2d427b3
TM		 1296 if (err)
1297 return err;
1298 }
0f963b75
NA		 1299
1300 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
1301 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
1302
169327d5 1303 err = __br_vlan_set_default_pvid(br, defpvid, extack);
0f963b75
NA		 1304 if (err)
1305 return err;
1306 }
6dada9b1
NA		 1307
1308 if (data[IFLA_BR_VLAN_STATS_ENABLED]) {
1309 __u8 vlan_stats = nla_get_u8(data[IFLA_BR_VLAN_STATS_ENABLED]);
1310
1311 err = br_vlan_set_stats(br, vlan_stats);
1312 if (err)
1313 return err;
1314 }
9163a0fc
NA		 1315
1316 if (data[IFLA_BR_VLAN_STATS_PER_PORT]) {
1317 __u8 per_port = nla_get_u8(data[IFLA_BR_VLAN_STATS_PER_PORT]);
1318
1319 err = br_vlan_set_stats_per_port(br, per_port);
1320 if (err)
1321 return err;
1322 }
d2d427b3
TM		 1323#endif
1324
7910228b
NA		 1325 if (data[IFLA_BR_GROUP_FWD_MASK]) {
1326 u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);
1327
1328 if (fwd_mask & BR_GROUPFWD_RESTRICTED)
1329 return -EINVAL;
1330 br->group_fwd_mask = fwd_mask;
1331 }
1332
111189ab
NA		 1333 if (data[IFLA_BR_GROUP_ADDR]) {
1334 u8 new_addr[ETH_ALEN];
1335
1336 if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
1337 return -EINVAL;
1338 memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
1339 if (!is_link_local_ether_addr(new_addr))
1340 return -EINVAL;
1341 if (new_addr[5] == 1 || /* 802.3x Pause address */
1342 new_addr[5] == 2 || /* 802.3ad Slow protocols */
1343 new_addr[5] == 3) /* 802.1X PAE address */
1344 return -EINVAL;
1345 spin_lock_bh(&br->lock);
1346 memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
1347 spin_unlock_bh(&br->lock);
be3664a0 1348 br_opt_toggle(br, BROPT_GROUP_ADDR_SET, true);
111189ab
NA		 1349 br_recalculate_fwd_mask(br);
1350 }
1351
1f78ee14
NA		 1352 if (data[IFLA_BR_FDB_FLUSH]) {
1353 struct net_bridge_fdb_flush_desc desc = {
628ac04a 1354 .flags_mask = BIT(BR_FDB_STATIC)
1f78ee14
NA		 1355 };
1356
1357 br_fdb_flush(br, &desc);
1358 }
150217c6 1359
a9a6bc70
NA		 1360#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1361 if (data[IFLA_BR_MCAST_ROUTER]) {
1362 u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]);
1363
a97df080
NA		 1364 err = br_multicast_set_router(&br->multicast_ctx,
1365 multicast_router);
a9a6bc70
NA		 1366 if (err)
1367 return err;
1368 }
89126327
NA		 1369
1370 if (data[IFLA_BR_MCAST_SNOOPING]) {
1371 u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
1372
ae1ea84b
FF		 1373 err = br_multicast_toggle(br, mcast_snooping, extack);
1374 if (err)
1375 return err;
89126327 1376 }
295141d9
NA		 1377
1378 if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {
1379 u8 val;
1380
1381 val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
675779ad 1382 br_opt_toggle(br, BROPT_MULTICAST_QUERY_USE_IFADDR, !!val);
295141d9 1383 }
ba062d7c
NA		 1384
1385 if (data[IFLA_BR_MCAST_QUERIER]) {
1386 u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
1387
62938182
NA		 1388 err = br_multicast_set_querier(&br->multicast_ctx,
1389 mcast_querier);
ba062d7c
NA		 1390 if (err)
1391 return err;
1392 }
431db3c0 1393
cf332bca
NA		 1394 if (data[IFLA_BR_MCAST_HASH_ELASTICITY])
1395 br_warn(br, "the hash_elasticity option has been deprecated and is always %u\n",
1396 RHT_ELASTICITY);
858079fd 1397
19e3a9c9
NA		 1398 if (data[IFLA_BR_MCAST_HASH_MAX])
1399 br->hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]);
79b859f5
NA		 1400
1401 if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
1402 u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
1403
d3d065c0 1404 br->multicast_ctx.multicast_last_member_count = val;
79b859f5 1405 }
b89e6bab
NA		 1406
1407 if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
1408 u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
1409
d3d065c0 1410 br->multicast_ctx.multicast_startup_query_count = val;
b89e6bab 1411 }
7e4df51e
NA		 1412
1413 if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
1414 u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
1415
d3d065c0 1416 br->multicast_ctx.multicast_last_member_interval = clock_t_to_jiffies(val);
7e4df51e
NA		 1417 }
1418
1419 if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
1420 u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
1421
d3d065c0 1422 br->multicast_ctx.multicast_membership_interval = clock_t_to_jiffies(val);
7e4df51e
NA		 1423 }
1424
1425 if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
1426 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
1427
d3d065c0 1428 br->multicast_ctx.multicast_querier_interval = clock_t_to_jiffies(val);
7e4df51e
NA		 1429 }
1430
1431 if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
1432 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
1433
99b40610 1434 br_multicast_set_query_intvl(&br->multicast_ctx, val);
7e4df51e
NA		 1435 }
1436
1437 if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
1438 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
1439
d3d065c0 1440 br->multicast_ctx.multicast_query_response_interval = clock_t_to_jiffies(val);
7e4df51e
NA		 1441 }
1442
1443 if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
1444 u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
1445
f83a112b 1446 br_multicast_set_startup_query_intvl(&br->multicast_ctx, val);
7e4df51e 1447 }
1080ab95
NA		 1448
1449 if (data[IFLA_BR_MCAST_STATS_ENABLED]) {
1450 __u8 mcast_stats;
1451
1452 mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]);
675779ad 1453 br_opt_toggle(br, BROPT_MULTICAST_STATS_ENABLED, !!mcast_stats);
1080ab95 1454 }
5e923585
NA		 1455
1456 if (data[IFLA_BR_MCAST_IGMP_VERSION]) {
1457 __u8 igmp_version;
1458
1459 igmp_version = nla_get_u8(data[IFLA_BR_MCAST_IGMP_VERSION]);
df271cd6
NA		 1460 err = br_multicast_set_igmp_version(&br->multicast_ctx,
1461 igmp_version);
5e923585
NA		 1462 if (err)
1463 return err;
1464 }
aa2ae3e7
NA		 1465
1466#if IS_ENABLED(CONFIG_IPV6)
1467 if (data[IFLA_BR_MCAST_MLD_VERSION]) {
1468 __u8 mld_version;
1469
1470 mld_version = nla_get_u8(data[IFLA_BR_MCAST_MLD_VERSION]);
df271cd6
NA		 1471 err = br_multicast_set_mld_version(&br->multicast_ctx,
1472 mld_version);
aa2ae3e7
NA		 1473 if (err)
1474 return err;
1475 }
1476#endif
a9a6bc70 1477#endif
93870cc0
NA		 1478#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1479 if (data[IFLA_BR_NF_CALL_IPTABLES]) {
1480 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]);
1481
8df3510f 1482 br_opt_toggle(br, BROPT_NF_CALL_IPTABLES, !!val);
93870cc0
NA		 1483 }
1484
1485 if (data[IFLA_BR_NF_CALL_IP6TABLES]) {
1486 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]);
1487
8df3510f 1488 br_opt_toggle(br, BROPT_NF_CALL_IP6TABLES, !!val);
93870cc0
NA		 1489 }
1490
1491 if (data[IFLA_BR_NF_CALL_ARPTABLES]) {
1492 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]);
1493
8df3510f 1494 br_opt_toggle(br, BROPT_NF_CALL_ARPTABLES, !!val);
93870cc0
NA		 1495 }
1496#endif
a9a6bc70 1497
a428afe8
NA		 1498 if (data[IFLA_BR_MULTI_BOOLOPT]) {
1499 struct br_boolopt_multi *bm;
1500
1501 bm = nla_data(data[IFLA_BR_MULTI_BOOLOPT]);
1502 err = br_boolopt_multi_toggle(br, bm, extack);
1503 if (err)
1504 return err;
1505 }
1506
13323516
JP		 1507 return 0;
1508}
1509
b6677449 1510static int br_dev_newlink(struct net *src_net, struct net_device *dev,
7a3f4a18
MS		 1511 struct nlattr *tb[], struct nlattr *data[],
1512 struct netlink_ext_ack *extack)
b6677449
IV		 1513{
1514 struct net_bridge *br = netdev_priv(dev);
1515 int err;
1516
84aeb437
NA		 1517 err = register_netdevice(dev);
1518 if (err)
1519 return err;
1520
b6677449
IV		 1521 if (tb[IFLA_ADDRESS]) {
1522 spin_lock_bh(&br->lock);
1523 br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
1524 spin_unlock_bh(&br->lock);
1525 }
1526
ad744b22 1527 err = br_changelink(dev, tb, data, extack);
5b8d5429 1528 if (err)
84aeb437
NA		 1529 br_dev_delete(dev, NULL);
1530
5b8d5429 1531 return err;
b6677449
IV		 1532}
1533
e5c3ea5c
JP		 1534static size_t br_get_size(const struct net_device *brdev)
1535{
1536 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1537 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1538 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
af615762
JT		 1539 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1540 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1541 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
a7854037 1542 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
d2d427b3
TM		 1543#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1544 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
0f963b75 1545 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
6dada9b1 1546 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */
9163a0fc 1547 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_PER_PORT */
d2d427b3 1548#endif
7910228b 1549 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
5127c81f 1550 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
7599a220 1551 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
8762ba68 1552 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
684dd248 1553 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
b89e6bab
NA		 1554 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1555 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
12a0faa3
ND		 1556 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1557 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1558 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1559 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
111189ab 1560 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
a9a6bc70
NA		 1561#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1562 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
89126327 1563 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
295141d9 1564 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
ba062d7c 1565 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
1080ab95 1566 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */
b89e6bab
NA		 1567 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1568 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1569 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1570 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
12a0faa3
ND		 1571 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1572 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1573 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1574 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1575 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1576 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
5e923585 1577 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_IGMP_VERSION */
aa2ae3e7 1578 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_MLD_VERSION */
c7fa1d9b 1579 br_multicast_querier_state_size() + /* IFLA_BR_MCAST_QUERIER_STATE */
93870cc0
NA		 1580#endif
1581#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1582 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1583 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1584 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
a9a6bc70 1585#endif
a428afe8 1586 nla_total_size(sizeof(struct br_boolopt_multi)) + /* IFLA_BR_MULTI_BOOLOPT */
e5c3ea5c
JP		 1587 0;
1588}
1589
1590static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1591{
1592 struct net_bridge *br = netdev_priv(brdev);
1593 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1594 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1595 u32 age_time = jiffies_to_clock_t(br->max_age);
af615762
JT		 1596 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1597 u32 stp_enabled = br->stp_enabled;
1598 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
1f51445a 1599 u8 vlan_enabled = br_vlan_enabled(br->dev);
a428afe8 1600 struct br_boolopt_multi bm;
4917a154
NA		 1601 u64 clockval;
1602
1603 clockval = br_timer_value(&br->hello_timer);
12a0faa3 1604 if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1605 return -EMSGSIZE;
1606 clockval = br_timer_value(&br->tcn_timer);
12a0faa3 1607 if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1608 return -EMSGSIZE;
1609 clockval = br_timer_value(&br->topology_change_timer);
12a0faa3
ND		 1610 if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval,
1611 IFLA_BR_PAD))
4917a154 1612 return -EMSGSIZE;
f7cdee8a 1613 clockval = br_timer_value(&br->gc_work.timer);
12a0faa3 1614 if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD))
4917a154 1615 return -EMSGSIZE;
e5c3ea5c 1616
a428afe8 1617 br_boolopt_multi_get(br, &bm);
e5c3ea5c
JP		 1618 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1619 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
af615762
JT		 1620 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1621 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1622 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
a7854037 1623 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
7910228b 1624 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
4917a154
NA		 1625 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1626 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1627 &br->bridge_id) ||
1628 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1629 &br->designated_root) ||
684dd248 1630 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
ed416309
NA		 1631 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1632 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1633 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
d76bd14e 1634 br->topology_change_detected) ||
a428afe8
NA		 1635 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr) ||
1636 nla_put(skb, IFLA_BR_MULTI_BOOLOPT, sizeof(bm), &bm))
e5c3ea5c
JP		 1637 return -EMSGSIZE;
1638
d2d427b3 1639#ifdef CONFIG_BRIDGE_VLAN_FILTERING
0f963b75 1640 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
6dada9b1 1641 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) ||
ae75767e 1642 nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED,
9163a0fc
NA		 1643 br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) ||
1644 nla_put_u8(skb, IFLA_BR_VLAN_STATS_PER_PORT,
600bea7d 1645 br_opt_get(br, BROPT_VLAN_STATS_PER_PORT)))
d2d427b3
TM		 1646 return -EMSGSIZE;
1647#endif
a9a6bc70 1648#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
d3d065c0
NA		 1649 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER,
1650 br->multicast_ctx.multicast_router) ||
13cefad2
NA		 1651 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING,
1652 br_opt_get(br, BROPT_MULTICAST_ENABLED)) ||
295141d9 1653 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
675779ad
NA		 1654 br_opt_get(br, BROPT_MULTICAST_QUERY_USE_IFADDR)) ||
1655 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER,
62938182 1656 br->multicast_ctx.multicast_querier) ||
1080ab95 1657 nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED,
675779ad 1658 br_opt_get(br, BROPT_MULTICAST_STATS_ENABLED)) ||
cf332bca 1659 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY, RHT_ELASTICITY) ||
79b859f5
NA		 1660 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1661 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
d3d065c0 1662 br->multicast_ctx.multicast_last_member_count) ||
b89e6bab 1663 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
d3d065c0 1664 br->multicast_ctx.multicast_startup_query_count) ||
5e923585 1665 nla_put_u8(skb, IFLA_BR_MCAST_IGMP_VERSION,
c7fa1d9b
NA		 1666 br->multicast_ctx.multicast_igmp_version) ||
1667 br_multicast_dump_querier_state(skb, &br->multicast_ctx,
1668 IFLA_BR_MCAST_QUERIER_STATE))
a9a6bc70 1669 return -EMSGSIZE;
aa2ae3e7
NA		 1670#if IS_ENABLED(CONFIG_IPV6)
1671 if (nla_put_u8(skb, IFLA_BR_MCAST_MLD_VERSION,
d3d065c0 1672 br->multicast_ctx.multicast_mld_version))
aa2ae3e7
NA		 1673 return -EMSGSIZE;
1674#endif
d3d065c0 1675 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_last_member_interval);
12a0faa3
ND		 1676 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval,
1677 IFLA_BR_PAD))
7e4df51e 1678 return -EMSGSIZE;
d3d065c0 1679 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_membership_interval);
12a0faa3
ND		 1680 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval,
1681 IFLA_BR_PAD))
7e4df51e 1682 return -EMSGSIZE;
d3d065c0 1683 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_querier_interval);
12a0faa3
ND		 1684 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval,
1685 IFLA_BR_PAD))
7e4df51e 1686 return -EMSGSIZE;
d3d065c0 1687 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_query_interval);
12a0faa3
ND		 1688 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval,
1689 IFLA_BR_PAD))
7e4df51e 1690 return -EMSGSIZE;
d3d065c0 1691 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_query_response_interval);
12a0faa3
ND		 1692 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval,
1693 IFLA_BR_PAD))
7e4df51e 1694 return -EMSGSIZE;
d3d065c0 1695 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_startup_query_interval);
12a0faa3
ND		 1696 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval,
1697 IFLA_BR_PAD))
7e4df51e 1698 return -EMSGSIZE;
a9a6bc70 1699#endif
93870cc0
NA		 1700#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1701 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
8df3510f 1702 br_opt_get(br, BROPT_NF_CALL_IPTABLES) ? 1 : 0) ||
93870cc0 1703 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
8df3510f 1704 br_opt_get(br, BROPT_NF_CALL_IP6TABLES) ? 1 : 0) ||
93870cc0 1705 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
8df3510f 1706 br_opt_get(br, BROPT_NF_CALL_ARPTABLES) ? 1 : 0))
93870cc0
NA		 1707 return -EMSGSIZE;
1708#endif
a9a6bc70 1709
e5c3ea5c
JP		 1710 return 0;
1711}
1712
d5ff8c41 1713static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
a60c0903 1714{
d5ff8c41 1715 struct net_bridge_port *p = NULL;
a60c0903
NA		 1716 struct net_bridge_vlan_group *vg;
1717 struct net_bridge_vlan *v;
d5ff8c41 1718 struct net_bridge *br;
a60c0903
NA		 1719 int numvls = 0;
1720
d5ff8c41
NA		 1721 switch (attr) {
1722 case IFLA_STATS_LINK_XSTATS:
1723 br = netdev_priv(dev);
1724 vg = br_vlan_group(br);
1725 break;
1726 case IFLA_STATS_LINK_XSTATS_SLAVE:
1727 p = br_port_get_rtnl(dev);
1728 if (!p)
1729 return 0;
d5ff8c41
NA		 1730 vg = nbp_vlan_group(p);
1731 break;
1732 default:
1733 return 0;
1734 }
1735
1080ab95
NA		 1736 if (vg) {
1737 /* we need to count all, even placeholder entries */
1738 list_for_each_entry(v, &vg->vlan_list, vlist)
1739 numvls++;
1740 }
a60c0903 1741
a60c0903 1742 return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
dbe0b880 1743 nla_total_size_64bit(sizeof(struct br_mcast_stats)) +
0854a051 1744 (p ? nla_total_size_64bit(sizeof(p->stp_xstats)) : 0) +
a60c0903
NA		 1745 nla_total_size(0);
1746}
1747
d5ff8c41
NA		 1748static int br_fill_linkxstats(struct sk_buff *skb,
1749 const struct net_device *dev,
1750 int *prividx, int attr)
80e73cc5 1751{
d5ff8c41
NA		 1752 struct nlattr *nla __maybe_unused;
1753 struct net_bridge_port *p = NULL;
1754 struct net_bridge_vlan_group *vg;
1755 struct net_bridge_vlan *v;
1756 struct net_bridge *br;
1757 struct nlattr *nest;
1758 int vl_idx = 0;
80e73cc5
NA		 1759
1760 switch (attr) {
1761 case IFLA_STATS_LINK_XSTATS:
d5ff8c41
NA		 1762 br = netdev_priv(dev);
1763 vg = br_vlan_group(br);
80e73cc5
NA		 1764 break;
1765 case IFLA_STATS_LINK_XSTATS_SLAVE:
d5ff8c41
NA		 1766 p = br_port_get_rtnl(dev);
1767 if (!p)
1768 return 0;
1769 br = p->br;
1770 vg = nbp_vlan_group(p);
80e73cc5 1771 break;
d5ff8c41
NA		 1772 default:
1773 return -EINVAL;
80e73cc5
NA		 1774 }
1775
ae0be8de 1776 nest = nla_nest_start_noflag(skb, LINK_XSTATS_TYPE_BRIDGE);
a60c0903
NA		 1777 if (!nest)
1778 return -EMSGSIZE;
a60c0903 1779
1080ab95 1780 if (vg) {
72f4af4e
NA		 1781 u16 pvid;
1782
1783 pvid = br_get_pvid(vg);
1080ab95
NA		 1784 list_for_each_entry(v, &vg->vlan_list, vlist) {
1785 struct bridge_vlan_xstats vxi;
281cc284 1786 struct pcpu_sw_netstats stats;
1080ab95
NA		 1787
1788 if (++vl_idx < *prividx)
1789 continue;
1790 memset(&vxi, 0, sizeof(vxi));
1791 vxi.vid = v->vid;
61ba1a2d 1792 vxi.flags = v->flags;
72f4af4e
NA		 1793 if (v->vid == pvid)
1794 vxi.flags |= BRIDGE_VLAN_INFO_PVID;
1080ab95 1795 br_vlan_get_stats(v, &stats);
9962acef
ED		 1796 vxi.rx_bytes = u64_stats_read(&stats.rx_bytes);
1797 vxi.rx_packets = u64_stats_read(&stats.rx_packets);
1798 vxi.tx_bytes = u64_stats_read(&stats.tx_bytes);
1799 vxi.tx_packets = u64_stats_read(&stats.tx_packets);
1080ab95
NA		 1800
1801 if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi))
1802 goto nla_put_failure;
1803 }
1804 }
1805
1806#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1807 if (++vl_idx >= *prividx) {
1808 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST,
1809 sizeof(struct br_mcast_stats),
1810 BRIDGE_XSTATS_PAD);
1811 if (!nla)
a60c0903 1812 goto nla_put_failure;
d5ff8c41 1813 br_multicast_get_stats(br, p, nla_data(nla));
a60c0903 1814 }
1080ab95 1815#endif
de179966
VD		 1816
1817 if (p) {
1818 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_STP,
1819 sizeof(p->stp_xstats),
1820 BRIDGE_XSTATS_PAD);
1821 if (!nla)
1822 goto nla_put_failure;
1823
1824 spin_lock_bh(&br->lock);
1825 memcpy(nla_data(nla), &p->stp_xstats, sizeof(p->stp_xstats));
1826 spin_unlock_bh(&br->lock);
1827 }
1828
a60c0903
NA		 1829 nla_nest_end(skb, nest);
1830 *prividx = 0;
1080ab95 1831
a60c0903
NA		 1832 return 0;
1833
1834nla_put_failure:
1835 nla_nest_end(skb, nest);
1836 *prividx = vl_idx;
1837
1838 return -EMSGSIZE;
1839}
fed0a159 1840
207895fd 1841static struct rtnl_af_ops br_af_ops __read_mostly = {
6cbdceeb 1842 .family = AF_BRIDGE,
b1974ed0 1843 .get_link_af_size = br_get_link_af_size_filtered,
6cbdceeb
VY		 1844};
1845
149ddd83 1846struct rtnl_link_ops br_link_ops __read_mostly = {
ced8283f
JP		 1847 .kind = "bridge",
1848 .priv_size = sizeof(struct net_bridge),
1849 .setup = br_dev_setup,
eb4cb851 1850 .maxtype = IFLA_BR_MAX,
13323516 1851 .policy = br_policy,
ced8283f
JP		 1852 .validate = br_validate,
1853 .newlink = br_dev_newlink,
13323516 1854 .changelink = br_changelink,
ced8283f 1855 .dellink = br_dev_delete,
e5c3ea5c
JP		 1856 .get_size = br_get_size,
1857 .fill_info = br_fill_info,
a60c0903
NA		 1858 .fill_linkxstats = br_fill_linkxstats,
1859 .get_linkxstats_size = br_get_linkxstats_size,
3ac636b8
JP		 1860
1861 .slave_maxtype = IFLA_BRPORT_MAX,
1862 .slave_policy = br_port_policy,
1863 .slave_changelink = br_port_slave_changelink,
ced8283f
JP		 1864 .get_slave_size = br_port_get_slave_size,
1865 .fill_slave_info = br_port_fill_slave_info,
bb900b27 1866};
11dc1f36 1867
32fe21c0 1868int __init br_netlink_init(void)
11dc1f36 1869{
3ec8e9f0
VY		 1870 int err;
1871
1872 br_mdb_init();
8dcea187 1873 br_vlan_rtnl_init();
3678a9d8 1874 rtnl_af_register(&br_af_ops);
3ec8e9f0 1875
6cbdceeb
VY		 1876 err = rtnl_link_register(&br_link_ops);
1877 if (err)
1878 goto out_af;
1879
3ec8e9f0 1880 return 0;
6cbdceeb
VY		 1881
1882out_af:
1883 rtnl_af_unregister(&br_af_ops);
3ec8e9f0
VY		 1884 br_mdb_uninit();
1885 return err;
11dc1f36
SH		 1886}
1887
34666d46 1888void br_netlink_fini(void)
11dc1f36 1889{
3ec8e9f0 1890 br_mdb_uninit();
8dcea187 1891 br_vlan_rtnl_uninit();
6cbdceeb 1892 rtnl_af_unregister(&br_af_ops);
bb900b27 1893 rtnl_link_unregister(&br_link_ops);
11dc1f36 1894}
Linux 6.x block layer and io_uring tree(s)