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dm: dm-zoned: use __bio_add_page for adding single metadata page
[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 */
160656d7 192 + nla_total_size(1) /* IFLA_BRPORT_NEIGH_VLAN_SUPPRESS */
4ebc7660 193 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
80df9a26 194 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */
96f94e7f
NA		 195 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */
196 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */
42d452c4
NA		 197 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_ID */
198 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_NO */
e08e838a
NA		 199 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */
200 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_CONFIG_PENDING */
12a0faa3
ND		 201 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */
202 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */
203 + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_HOLD_TIMER */
5d6ae479
NA		 204#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
205 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MULTICAST_ROUTER */
a1aee20d
PM		 206 + nla_total_size(sizeof(u32)) /* IFLA_BRPORT_MCAST_N_GROUPS */
207 + nla_total_size(sizeof(u32)) /* IFLA_BRPORT_MCAST_MAX_GROUPS */
5d6ae479 208#endif
5af48b59 209 + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_GROUP_FWD_MASK */
3e54442c 210 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MRP_RING_OPEN */
ffb3adba 211 + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MRP_IN_OPEN */
2dba407f
NA		 212 + nla_total_size(sizeof(u32)) /* IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT */
213 + nla_total_size(sizeof(u32)) /* IFLA_BRPORT_MCAST_EHT_HOSTS_CNT */
25c71c75 214 + 0;
215}
216
fed0a159 217static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask)
339bf98f
TG		 218{
219 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
25c71c75 220 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
221 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
222 + nla_total_size(4) /* IFLA_MASTER */
223 + nla_total_size(4) /* IFLA_MTU */
224 + nla_total_size(4) /* IFLA_LINK */
225 + nla_total_size(1) /* IFLA_OPERSTATE */
b7853d73 226 + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */
fed0a159 227 + nla_total_size(br_get_link_af_size_filtered(dev,
2756f68c
NA		 228 filter_mask)) /* IFLA_AF_SPEC */
229 + nla_total_size(4); /* IFLA_BRPORT_BACKUP_PORT */
25c71c75 230}
231
232static int br_port_fill_attrs(struct sk_buff *skb,
233 const struct net_bridge_port *p)
234{
235 u8 mode = !!(p->flags & BR_HAIRPIN_MODE);
2756f68c 236 struct net_bridge_port *backup_p;
61c0a9a8 237 u64 timerval;
25c71c75 238
239 if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
240 nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) ||
241 nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) ||
a2e01a65 242 nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
1007dd1a 243 nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
b6cb5ac8
NA		 244 nla_put_u8(skb, IFLA_BRPORT_PROTECT,
245 !!(p->flags & BR_ROOT_BLOCK)) ||
246 nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE,
247 !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||
6db6f0ea
FF		 248 nla_put_u8(skb, IFLA_BRPORT_MCAST_TO_UCAST,
249 !!(p->flags & BR_MULTICAST_TO_UNICAST)) ||
867a5943 250 nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) ||
b6cb5ac8
NA		 251 nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD,
252 !!(p->flags & BR_FLOOD)) ||
253 nla_put_u8(skb, IFLA_BRPORT_MCAST_FLOOD,
254 !!(p->flags & BR_MCAST_FLOOD)) ||
99f906e9
MM		 255 nla_put_u8(skb, IFLA_BRPORT_BCAST_FLOOD,
256 !!(p->flags & BR_BCAST_FLOOD)) ||
842a9ae0
JM		 257 nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) ||
258 nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI,
4ebc7660
NA		 259 !!(p->flags & BR_PROXYARP_WIFI)) ||
260 nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
80df9a26
NA		 261 &p->designated_root) ||
262 nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id),
96f94e7f
NA		 263 &p->designated_bridge) ||
264 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) ||
42d452c4
NA		 265 nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost) ||
266 nla_put_u16(skb, IFLA_BRPORT_ID, p->port_id) ||
e08e838a
NA		 267 nla_put_u16(skb, IFLA_BRPORT_NO, p->port_no) ||
268 nla_put_u8(skb, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
269 p->topology_change_ack) ||
efa5356b
RP		 270 nla_put_u8(skb, IFLA_BRPORT_CONFIG_PENDING, p->config_pending) ||
271 nla_put_u8(skb, IFLA_BRPORT_VLAN_TUNNEL, !!(p->flags &
5af48b59 272 BR_VLAN_TUNNEL)) ||
821f1b21
RP		 273 nla_put_u16(skb, IFLA_BRPORT_GROUP_FWD_MASK, p->group_fwd_mask) ||
274 nla_put_u8(skb, IFLA_BRPORT_NEIGH_SUPPRESS,
7d850abd 275 !!(p->flags & BR_NEIGH_SUPPRESS)) ||
3e54442c
HV		 276 nla_put_u8(skb, IFLA_BRPORT_MRP_RING_OPEN, !!(p->flags &
277 BR_MRP_LOST_CONT)) ||
ffb3adba
HV		 278 nla_put_u8(skb, IFLA_BRPORT_MRP_IN_OPEN,
279 !!(p->flags & BR_MRP_LOST_IN_CONT)) ||
a21d9a67 280 nla_put_u8(skb, IFLA_BRPORT_ISOLATED, !!(p->flags & BR_ISOLATED)) ||
a35ec8e3 281 nla_put_u8(skb, IFLA_BRPORT_LOCKED, !!(p->flags & BR_PORT_LOCKED)) ||
160656d7
IS		 282 nla_put_u8(skb, IFLA_BRPORT_MAB, !!(p->flags & BR_PORT_MAB)) ||
283 nla_put_u8(skb, IFLA_BRPORT_NEIGH_VLAN_SUPPRESS,
284 !!(p->flags & BR_NEIGH_VLAN_SUPPRESS)))
25c71c75 285 return -EMSGSIZE;
286
61c0a9a8 287 timerval = br_timer_value(&p->message_age_timer);
12a0faa3
ND		 288 if (nla_put_u64_64bit(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval,
289 IFLA_BRPORT_PAD))
61c0a9a8
NA		 290 return -EMSGSIZE;
291 timerval = br_timer_value(&p->forward_delay_timer);
12a0faa3
ND		 292 if (nla_put_u64_64bit(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval,
293 IFLA_BRPORT_PAD))
61c0a9a8
NA		 294 return -EMSGSIZE;
295 timerval = br_timer_value(&p->hold_timer);
12a0faa3
ND		 296 if (nla_put_u64_64bit(skb, IFLA_BRPORT_HOLD_TIMER, timerval,
297 IFLA_BRPORT_PAD))
61c0a9a8
NA		 298 return -EMSGSIZE;
299
5d6ae479
NA		 300#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
301 if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER,
9632233e 302 p->multicast_ctx.multicast_router) ||
2dba407f
NA		 303 nla_put_u32(skb, IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT,
304 p->multicast_eht_hosts_limit) ||
305 nla_put_u32(skb, IFLA_BRPORT_MCAST_EHT_HOSTS_CNT,
a1aee20d
PM		 306 p->multicast_eht_hosts_cnt) ||
307 nla_put_u32(skb, IFLA_BRPORT_MCAST_N_GROUPS,
308 br_multicast_ngroups_get(&p->multicast_ctx)) ||
309 nla_put_u32(skb, IFLA_BRPORT_MCAST_MAX_GROUPS,
310 br_multicast_ngroups_get_max(&p->multicast_ctx)))
5d6ae479
NA		 311 return -EMSGSIZE;
312#endif
313
2756f68c
NA		 314 /* we might be called only with br->lock */
315 rcu_read_lock();
316 backup_p = rcu_dereference(p->backup_port);
317 if (backup_p)
318 nla_put_u32(skb, IFLA_BRPORT_BACKUP_PORT,
319 backup_p->dev->ifindex);
320 rcu_read_unlock();
321
25c71c75 322 return 0;
339bf98f
TG		 323}
324
36cd0ffb
RP		 325static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start,
326 u16 vid_end, u16 flags)
327{
328 struct bridge_vlan_info vinfo;
329
330 if ((vid_end - vid_start) > 0) {
331 /* add range to skb */
332 vinfo.vid = vid_start;
333 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN;
334 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
335 sizeof(vinfo), &vinfo))
336 goto nla_put_failure;
337
36cd0ffb
RP		 338 vinfo.vid = vid_end;
339 vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END;
340 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
341 sizeof(vinfo), &vinfo))
342 goto nla_put_failure;
343 } else {
344 vinfo.vid = vid_start;
345 vinfo.flags = flags;
346 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
347 sizeof(vinfo), &vinfo))
348 goto nla_put_failure;
349 }
350
351 return 0;
352
353nla_put_failure:
354 return -EMSGSIZE;
355}
356
357static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb,
77751ee8 358 struct net_bridge_vlan_group *vg)
36cd0ffb 359{
2594e906
NA		 360 struct net_bridge_vlan *v;
361 u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0;
77751ee8 362 u16 flags, pvid;
36cd0ffb
RP		 363 int err = 0;
364
365 /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan
366 * and mark vlan info with begin and end flags
367 * if vlaninfo represents a range
368 */
77751ee8 369 pvid = br_get_pvid(vg);
e9c953ef 370 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
36cd0ffb 371 flags = 0;
2594e906
NA		 372 if (!br_vlan_should_use(v))
373 continue;
374 if (v->vid == pvid)
36cd0ffb
RP		 375 flags |= BRIDGE_VLAN_INFO_PVID;
376
2594e906 377 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 378 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
379
380 if (vid_range_start == 0) {
381 goto initvars;
2594e906 382 } else if ((v->vid - vid_range_end) == 1 &&
36cd0ffb 383 flags == vid_range_flags) {
2594e906 384 vid_range_end = v->vid;
36cd0ffb
RP		 385 continue;
386 } else {
387 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
388 vid_range_end,
389 vid_range_flags);
390 if (err)
391 return err;
392 }
393
394initvars:
2594e906
NA		 395 vid_range_start = v->vid;
396 vid_range_end = v->vid;
36cd0ffb
RP		 397 vid_range_flags = flags;
398 }
399
0fe6de49
RP		 400 if (vid_range_start != 0) {
401 /* Call it once more to send any left over vlans */
402 err = br_fill_ifvlaninfo_range(skb, vid_range_start,
403 vid_range_end,
404 vid_range_flags);
405 if (err)
406 return err;
407 }
36cd0ffb
RP		 408
409 return 0;
410}
411
412static int br_fill_ifvlaninfo(struct sk_buff *skb,
77751ee8 413 struct net_bridge_vlan_group *vg)
36cd0ffb
RP		 414{
415 struct bridge_vlan_info vinfo;
2594e906 416 struct net_bridge_vlan *v;
77751ee8 417 u16 pvid;
36cd0ffb 418
77751ee8 419 pvid = br_get_pvid(vg);
e9c953ef 420 list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {
2594e906
NA		 421 if (!br_vlan_should_use(v))
422 continue;
423
424 vinfo.vid = v->vid;
36cd0ffb 425 vinfo.flags = 0;
2594e906 426 if (v->vid == pvid)
36cd0ffb
RP		 427 vinfo.flags |= BRIDGE_VLAN_INFO_PVID;
428
2594e906 429 if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED)
36cd0ffb
RP		 430 vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED;
431
432 if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO,
433 sizeof(vinfo), &vinfo))
434 goto nla_put_failure;
435 }
436
437 return 0;
438
439nla_put_failure:
440 return -EMSGSIZE;
441}
442
11dc1f36
SH		 443/*
444 * Create one netlink message for one interface
445 * Contains port and master info as well as carrier and bridge state.
446 */
6cbdceeb 447static int br_fill_ifinfo(struct sk_buff *skb,
92899063 448 const struct net_bridge_port *port,
6cbdceeb 449 u32 pid, u32 seq, int event, unsigned int flags,
b6d0425b
HB		 450 u32 filter_mask, const struct net_device *dev,
451 bool getlink)
11dc1f36 452{
92899063 453 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
b6c02ef5 454 struct nlattr *af = NULL;
2594e906 455 struct net_bridge *br;
74685962 456 struct ifinfomsg *hdr;
11dc1f36 457 struct nlmsghdr *nlh;
11dc1f36 458
6cbdceeb
VY		 459 if (port)
460 br = port->br;
461 else
462 br = netdev_priv(dev);
463
28a16c97 464 br_debug(br, "br_fill_info event %d port %s master %s\n",
465 event, dev->name, br->dev->name);
11dc1f36 466
74685962
TG		 467 nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags);
468 if (nlh == NULL)
26932566 469 return -EMSGSIZE;
11dc1f36 470
74685962
TG		 471 hdr = nlmsg_data(nlh);
472 hdr->ifi_family = AF_BRIDGE;
473 hdr->__ifi_pad = 0;
474 hdr->ifi_type = dev->type;
475 hdr->ifi_index = dev->ifindex;
476 hdr->ifi_flags = dev_get_flags(dev);
477 hdr->ifi_change = 0;
11dc1f36 478
2eb812e6
DM		 479 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
480 nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) ||
481 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
482 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
483 (dev->addr_len &&
484 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
a54acb3a
ND		 485 (dev->ifindex != dev_get_iflink(dev) &&
486 nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev))))
2eb812e6 487 goto nla_put_failure;
25c71c75 488
6cbdceeb 489 if (event == RTM_NEWLINK && port) {
f78c6032 490 struct nlattr *nest;
25c71c75 491
f78c6032 492 nest = nla_nest_start(skb, IFLA_PROTINFO);
25c71c75 493 if (nest == NULL || br_port_fill_attrs(skb, port) < 0)
494 goto nla_put_failure;
495 nla_nest_end(skb, nest);
496 }
497
b6c02ef5
HB		 498 if (filter_mask & (RTEXT_FILTER_BRVLAN |
499 RTEXT_FILTER_BRVLAN_COMPRESSED |
5e312fc0 500 RTEXT_FILTER_MRP |
e77824d8 501 RTEXT_FILTER_CFM_CONFIG |
122c2948
TW		 502 RTEXT_FILTER_CFM_STATUS |
503 RTEXT_FILTER_MST)) {
b6c02ef5
HB		 504 af = nla_nest_start_noflag(skb, IFLA_AF_SPEC);
505 if (!af)
506 goto nla_put_failure;
507 }
508
6cbdceeb 509 /* Check if the VID information is requested */
36cd0ffb
RP		 510 if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
511 (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
2594e906 512 struct net_bridge_vlan_group *vg;
36cd0ffb 513 int err;
6cbdceeb 514
e9c953ef
NA		 515 /* RCU needed because of the VLAN locking rules (rcu || rtnl) */
516 rcu_read_lock();
77751ee8 517 if (port)
e9c953ef 518 vg = nbp_vlan_group_rcu(port);
77751ee8 519 else
e9c953ef 520 vg = br_vlan_group_rcu(br);
6cbdceeb 521
e9c953ef
NA		 522 if (!vg || !vg->num_vlans) {
523 rcu_read_unlock();
6cbdceeb 524 goto done;
e9c953ef 525 }
36cd0ffb 526 if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
77751ee8 527 err = br_fill_ifvlaninfo_compressed(skb, vg);
36cd0ffb 528 else
77751ee8 529 err = br_fill_ifvlaninfo(skb, vg);
efa5356b
RP		 530
531 if (port && (port->flags & BR_VLAN_TUNNEL))
532 err = br_fill_vlan_tunnel_info(skb, vg);
e9c953ef 533 rcu_read_unlock();
36cd0ffb
RP		 534 if (err)
535 goto nla_put_failure;
36a8e8e2
HV		 536 }
537
538 if (filter_mask & RTEXT_FILTER_MRP) {
36a8e8e2
HV		 539 int err;
540
541 if (!br_mrp_enabled(br) || port)
542 goto done;
543
36a8e8e2
HV		 544 rcu_read_lock();
545 err = br_mrp_fill_info(skb, br);
546 rcu_read_unlock();
547
548 if (err)
549 goto nla_put_failure;
6cbdceeb
VY		 550 }
551
e77824d8 552 if (filter_mask & (RTEXT_FILTER_CFM_CONFIG | RTEXT_FILTER_CFM_STATUS)) {
5e312fc0
HB		 553 struct nlattr *cfm_nest = NULL;
554 int err;
555
556 if (!br_cfm_created(br) || port)
557 goto done;
558
559 cfm_nest = nla_nest_start(skb, IFLA_BRIDGE_CFM);
560 if (!cfm_nest)
561 goto nla_put_failure;
562
563 if (filter_mask & RTEXT_FILTER_CFM_CONFIG) {
564 rcu_read_lock();
565 err = br_cfm_config_fill_info(skb, br);
566 rcu_read_unlock();
567 if (err)
568 goto nla_put_failure;
569 }
570
e77824d8
HB		 571 if (filter_mask & RTEXT_FILTER_CFM_STATUS) {
572 rcu_read_lock();
b6d0425b 573 err = br_cfm_status_fill_info(skb, br, getlink);
e77824d8
HB		 574 rcu_read_unlock();
575 if (err)
576 goto nla_put_failure;
577 }
578
5e312fc0
HB		 579 nla_nest_end(skb, cfm_nest);
580 }
581
122c2948
TW		 582 if ((filter_mask & RTEXT_FILTER_MST) &&
583 br_opt_get(br, BROPT_MST_ENABLED) && port) {
584 const struct net_bridge_vlan_group *vg = nbp_vlan_group(port);
585 struct nlattr *mst_nest;
586 int err;
587
588 if (!vg || !vg->num_vlans)
589 goto done;
590
591 mst_nest = nla_nest_start(skb, IFLA_BRIDGE_MST);
592 if (!mst_nest)
593 goto nla_put_failure;
594
595 err = br_mst_fill_info(skb, vg);
596 if (err)
597 goto nla_put_failure;
598
599 nla_nest_end(skb, mst_nest);
600 }
601
6cbdceeb 602done:
9b134b16
BP		 603 if (af) {
604 if (nlmsg_get_pos(skb) - (void *)af > nla_attr_size(0))
605 nla_nest_end(skb, af);
606 else
607 nla_nest_cancel(skb, af);
608 }
122c2948 609
053c095a
JB		 610 nlmsg_end(skb, nlh);
611 return 0;
11dc1f36 612
74685962 613nla_put_failure:
26932566
PM		 614 nlmsg_cancel(skb, nlh);
615 return -EMSGSIZE;
11dc1f36
SH		 616}
617
b6d0425b
HB		 618void br_info_notify(int event, const struct net_bridge *br,
619 const struct net_bridge_port *port, u32 filter)
11dc1f36 620{
92899063 621 struct net_device *dev;
11dc1f36 622 struct sk_buff *skb;
280a306c 623 int err = -ENOBUFS;
92899063
NA		 624 struct net *net;
625 u16 port_no = 0;
11dc1f36 626
92899063 627 if (WARN_ON(!port && !br))
407af329
VY		 628 return;
629
92899063
NA		 630 if (port) {
631 dev = port->dev;
632 br = port->br;
633 port_no = port->port_no;
634 } else {
635 dev = br->dev;
636 }
637
638 net = dev_net(dev);
639 br_debug(br, "port %u(%s) event %d\n", port_no, dev->name, event);
28a16c97 640
92899063 641 skb = nlmsg_new(br_nlmsg_size(dev, filter), GFP_ATOMIC);
280a306c
TG		 642 if (skb == NULL)
643 goto errout;
644
b6d0425b 645 err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, dev, false);
26932566
PM		 646 if (err < 0) {
647 /* -EMSGSIZE implies BUG in br_nlmsg_size() */
648 WARN_ON(err == -EMSGSIZE);
649 kfree_skb(skb);
650 goto errout;
651 }
1ce85fe4
PNA		 652 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
653 return;
280a306c 654errout:
87e823b3 655 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
11dc1f36
SH		 656}
657
b6d0425b
HB		 658/* Notify listeners of a change in bridge or port information */
659void br_ifinfo_notify(int event, const struct net_bridge *br,
660 const struct net_bridge_port *port)
661{
662 u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED;
663
664 return br_info_notify(event, br, port, filter);
665}
666
11dc1f36
SH		 667/*
668 * Dump information about all ports, in response to GETLINK
669 */
e5a55a89 670int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
46c264da 671 struct net_device *dev, u32 filter_mask, int nlflags)
11dc1f36 672{
1fb1754a 673 struct net_bridge_port *port = br_port_get_rtnl(dev);
e5a55a89 674
36cd0ffb 675 if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) &&
36a8e8e2 676 !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED) &&
5e312fc0 677 !(filter_mask & RTEXT_FILTER_MRP) &&
e77824d8
HB		 678 !(filter_mask & RTEXT_FILTER_CFM_CONFIG) &&
679 !(filter_mask & RTEXT_FILTER_CFM_STATUS))
1b846f92 680 return 0;
11dc1f36 681
46c264da 682 return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags,
b6d0425b 683 filter_mask, dev, true);
11dc1f36
SH		 684}
685
bdced7ef 686static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
169327d5
PM		 687 int cmd, struct bridge_vlan_info *vinfo, bool *changed,
688 struct netlink_ext_ack *extack)
bdced7ef 689{
f418af63 690 bool curr_change;
bdced7ef
RP		 691 int err = 0;
692
693 switch (cmd) {
694 case RTM_SETLINK:
695 if (p) {
2594e906
NA		 696 /* if the MASTER flag is set this will act on the global
697 * per-VLAN entry as well
698 */
f418af63 699 err = nbp_vlan_add(p, vinfo->vid, vinfo->flags,
169327d5 700 &curr_change, extack);
bdced7ef 701 } else {
2594e906 702 vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY;
f418af63 703 err = br_vlan_add(br, vinfo->vid, vinfo->flags,
169327d5 704 &curr_change, extack);
bdced7ef 705 }
f418af63 706 if (curr_change)
e19b42a1 707 *changed = true;
bdced7ef
RP		 708 break;
709
710 case RTM_DELLINK:
711 if (p) {
e19b42a1
NA		 712 if (!nbp_vlan_delete(p, vinfo->vid))
713 *changed = true;
714
715 if ((vinfo->flags & BRIDGE_VLAN_INFO_MASTER) &&
716 !br_vlan_delete(p->br, vinfo->vid))
717 *changed = true;
718 } else if (!br_vlan_delete(br, vinfo->vid)) {
719 *changed = true;
bdced7ef
RP		 720 }
721 break;
722 }
723
724 return err;
725}
407af329 726
f26b2965
NA		 727int br_process_vlan_info(struct net_bridge *br,
728 struct net_bridge_port *p, int cmd,
729 struct bridge_vlan_info *vinfo_curr,
730 struct bridge_vlan_info **vinfo_last,
731 bool *changed,
732 struct netlink_ext_ack *extack)
efa5356b 733{
f545923b
NA		 734 int err, rtm_cmd;
735
8f4cc940 736 if (!br_vlan_valid_id(vinfo_curr->vid, extack))
efa5356b
RP		 737 return -EINVAL;
738
f545923b
NA		 739 /* needed for vlan-only NEWVLAN/DELVLAN notifications */
740 rtm_cmd = br_afspec_cmd_to_rtm(cmd);
741
efa5356b 742 if (vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
8f4cc940 743 if (!br_vlan_valid_range(vinfo_curr, *vinfo_last, extack))
efa5356b
RP		 744 return -EINVAL;
745 *vinfo_last = vinfo_curr;
efa5356b
RP		 746 return 0;
747 }
748
749 if (*vinfo_last) {
750 struct bridge_vlan_info tmp_vinfo;
f545923b 751 int v, v_change_start = 0;
efa5356b 752
8f4cc940 753 if (!br_vlan_valid_range(vinfo_curr, *vinfo_last, extack))
efa5356b
RP		 754 return -EINVAL;
755
756 memcpy(&tmp_vinfo, *vinfo_last,
757 sizeof(struct bridge_vlan_info));
758 for (v = (*vinfo_last)->vid; v <= vinfo_curr->vid; v++) {
f545923b
NA		 759 bool curr_change = false;
760
efa5356b 761 tmp_vinfo.vid = v;
f545923b 762 err = br_vlan_info(br, p, cmd, &tmp_vinfo, &curr_change,
169327d5 763 extack);
efa5356b
RP		 764 if (err)
765 break;
f545923b
NA		 766 if (curr_change) {
767 *changed = curr_change;
768 if (!v_change_start)
769 v_change_start = v;
770 } else {
771 /* nothing to notify yet */
772 if (!v_change_start)
773 continue;
774 br_vlan_notify(br, p, v_change_start,
775 v - 1, rtm_cmd);
776 v_change_start = 0;
777 }
7979457b 778 cond_resched();
efa5356b 779 }
f545923b
NA		 780 /* v_change_start is set only if the last/whole range changed */
781 if (v_change_start)
782 br_vlan_notify(br, p, v_change_start,
783 v - 1, rtm_cmd);
784
efa5356b
RP		 785 *vinfo_last = NULL;
786
66c54517 787 return err;
efa5356b
RP		 788 }
789
f545923b
NA		 790 err = br_vlan_info(br, p, cmd, vinfo_curr, changed, extack);
791 if (*changed)
792 br_vlan_notify(br, p, vinfo_curr->vid, 0, rtm_cmd);
793
794 return err;
efa5356b
RP		 795}
796
407af329
VY		 797static int br_afspec(struct net_bridge *br,
798 struct net_bridge_port *p,
799 struct nlattr *af_spec,
169327d5
PM		 800 int cmd, bool *changed,
801 struct netlink_ext_ack *extack)
407af329 802{
efa5356b
RP		 803 struct bridge_vlan_info *vinfo_curr = NULL;
804 struct bridge_vlan_info *vinfo_last = NULL;
bdced7ef 805 struct nlattr *attr;
efa5356b
RP		 806 struct vtunnel_info tinfo_last = {};
807 struct vtunnel_info tinfo_curr = {};
808 int err = 0, rem;
407af329 809
bdced7ef 810 nla_for_each_nested(attr, af_spec, rem) {
efa5356b
RP		 811 err = 0;
812 switch (nla_type(attr)) {
813 case IFLA_BRIDGE_VLAN_TUNNEL_INFO:
1020ce31 814 if (!p || !(p->flags & BR_VLAN_TUNNEL))
bdced7ef 815 return -EINVAL;
efa5356b
RP		 816 err = br_parse_vlan_tunnel_info(attr, &tinfo_curr);
817 if (err)
818 return err;
819 err = br_process_vlan_tunnel_info(br, p, cmd,
820 &tinfo_curr,
e19b42a1
NA		 821 &tinfo_last,
822 changed);
efa5356b
RP		 823 if (err)
824 return err;
825 break;
826 case IFLA_BRIDGE_VLAN_INFO:
827 if (nla_len(attr) != sizeof(struct bridge_vlan_info))
6623c60d 828 return -EINVAL;
efa5356b
RP		 829 vinfo_curr = nla_data(attr);
830 err = br_process_vlan_info(br, p, cmd, vinfo_curr,
169327d5
PM		 831 &vinfo_last, changed,
832 extack);
efa5356b
RP		 833 if (err)
834 return err;
835 break;
65369933
HV		 836 case IFLA_BRIDGE_MRP:
837 err = br_mrp_parse(br, p, attr, cmd, extack);
838 if (err)
839 return err;
840 break;
2be665c3
HB		 841 case IFLA_BRIDGE_CFM:
842 err = br_cfm_parse(br, p, attr, cmd, extack);
843 if (err)
844 return err;
845 break;
122c2948
TW		 846 case IFLA_BRIDGE_MST:
847 if (!p) {
848 NL_SET_ERR_MSG(extack,
849 "MST states can only be set on bridge ports");
850 return -EINVAL;
851 }
852
853 if (cmd != RTM_SETLINK) {
854 NL_SET_ERR_MSG(extack,
855 "MST states can only be set through RTM_SETLINK");
856 return -EINVAL;
857 }
858
859 err = br_mst_process(p, attr, extack);
860 if (err)
861 return err;
862 break;
bdced7ef 863 }
407af329
VY		 864 }
865
866 return err;
867}
868
3ac636b8 869static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
c00041cf
PM		 870 [IFLA_BRPORT_UNSPEC] = { .strict_start_type =
871 IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT + 1 },
25c71c75 872 [IFLA_BRPORT_STATE] = { .type = NLA_U8 },
873 [IFLA_BRPORT_COST] = { .type = NLA_U32 },
874 [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
875 [IFLA_BRPORT_MODE] = { .type = NLA_U8 },
a2e01a65 876 [IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
1007dd1a 877 [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
6f705d8c 878 [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 },
9ba18891 879 [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
867a5943 880 [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
355b9f9d 881 [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 },
786c2077 882 [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 },
5d6ae479 883 [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 },
6db6f0ea 884 [IFLA_BRPORT_MCAST_TO_UCAST] = { .type = NLA_U8 },
9051247d
TK		 885 [IFLA_BRPORT_MCAST_FLOOD] = { .type = NLA_U8 },
886 [IFLA_BRPORT_BCAST_FLOOD] = { .type = NLA_U8 },
fbec443b 887 [IFLA_BRPORT_VLAN_TUNNEL] = { .type = NLA_U8 },
5af48b59 888 [IFLA_BRPORT_GROUP_FWD_MASK] = { .type = NLA_U16 },
1a3fbd3f 889 [IFLA_BRPORT_NEIGH_SUPPRESS] = { .type = NLA_U8 },
7d850abd 890 [IFLA_BRPORT_ISOLATED] = { .type = NLA_U8 },
a21d9a67 891 [IFLA_BRPORT_LOCKED] = { .type = NLA_U8 },
a35ec8e3 892 [IFLA_BRPORT_MAB] = { .type = NLA_U8 },
2756f68c 893 [IFLA_BRPORT_BACKUP_PORT] = { .type = NLA_U32 },
2dba407f 894 [IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT] = { .type = NLA_U32 },
a1aee20d
PM		 895 [IFLA_BRPORT_MCAST_N_GROUPS] = { .type = NLA_REJECT },
896 [IFLA_BRPORT_MCAST_MAX_GROUPS] = { .type = NLA_U32 },
160656d7 897 [IFLA_BRPORT_NEIGH_VLAN_SUPPRESS] = NLA_POLICY_MAX(NLA_U8, 1),
25c71c75 898};
899
900/* Change the state of the port and notify spanning tree */
901static int br_set_port_state(struct net_bridge_port *p, u8 state)
902{
903 if (state > BR_STATE_BLOCKING)
904 return -EINVAL;
905
906 /* if kernel STP is running, don't allow changes */
907 if (p->br->stp_enabled == BR_KERNEL_STP)
908 return -EBUSY;
909
576eb625 910 /* if device is not up, change is not allowed
911 * if link is not present, only allowable state is disabled
912 */
25c71c75 913 if (!netif_running(p->dev) ||
576eb625 914 (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED))
25c71c75 915 return -ENETDOWN;
916
775dd692 917 br_set_state(p, state);
25c71c75 918 br_port_state_selection(p->br);
919 return 0;
920}
921
922/* Set/clear or port flags based on attribute */
304ae3bf
VO		 923static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[],
924 int attrtype, unsigned long mask)
25c71c75 925{
3922285d 926 if (!tb[attrtype])
304ae3bf 927 return;
3922285d
AS		 928
929 if (nla_get_u8(tb[attrtype]))
304ae3bf 930 p->flags |= mask;
3922285d 931 else
304ae3bf 932 p->flags &= ~mask;
25c71c75 933}
934
935/* Process bridge protocol info on port */
078bbb85
VO		 936static int br_setport(struct net_bridge_port *p, struct nlattr *tb[],
937 struct netlink_ext_ack *extack)
25c71c75 938{
304ae3bf
VO		 939 unsigned long old_flags, changed_mask;
940 bool br_vlan_tunnel_old;
efa5356b 941 int err;
25c71c75 942
304ae3bf
VO		 943 old_flags = p->flags;
944 br_vlan_tunnel_old = (old_flags & BR_VLAN_TUNNEL) ? true : false;
945
946 br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE);
947 br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
948 br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE,
949 BR_MULTICAST_FAST_LEAVE);
950 br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
951 br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
952 br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
953 br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD);
954 br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST,
955 BR_MULTICAST_TO_UNICAST);
956 br_set_port_flag(p, tb, IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD);
957 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP);
958 br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI);
959 br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL);
960 br_set_port_flag(p, tb, IFLA_BRPORT_NEIGH_SUPPRESS, BR_NEIGH_SUPPRESS);
961 br_set_port_flag(p, tb, IFLA_BRPORT_ISOLATED, BR_ISOLATED);
a21d9a67 962 br_set_port_flag(p, tb, IFLA_BRPORT_LOCKED, BR_PORT_LOCKED);
a35ec8e3 963 br_set_port_flag(p, tb, IFLA_BRPORT_MAB, BR_PORT_MAB);
160656d7
IS		 964 br_set_port_flag(p, tb, IFLA_BRPORT_NEIGH_VLAN_SUPPRESS,
965 BR_NEIGH_VLAN_SUPPRESS);
a35ec8e3
HS		 966
967 if ((p->flags & BR_PORT_MAB) &&
968 (!(p->flags & BR_PORT_LOCKED) || !(p->flags & BR_LEARNING))) {
969 NL_SET_ERR_MSG(extack, "Bridge port must be locked and have learning enabled when MAB is enabled");
970 p->flags = old_flags;
971 return -EINVAL;
972 } else if (!(p->flags & BR_PORT_MAB) && (old_flags & BR_PORT_MAB)) {
973 struct net_bridge_fdb_flush_desc desc = {
974 .flags = BIT(BR_FDB_LOCKED),
975 .flags_mask = BIT(BR_FDB_LOCKED),
976 .port_ifindex = p->dev->ifindex,
977 };
978
979 br_fdb_flush(p->br, &desc);
980 }
304ae3bf
VO		 981
982 changed_mask = old_flags ^ p->flags;
983
078bbb85 984 err = br_switchdev_set_port_flag(p, p->flags, changed_mask, extack);
304ae3bf
VO		 985 if (err) {
986 p->flags = old_flags;
3922285d 987 return err;
304ae3bf 988 }
3922285d 989
efa5356b
RP		 990 if (br_vlan_tunnel_old && !(p->flags & BR_VLAN_TUNNEL))
991 nbp_vlan_tunnel_info_flush(p);
992
304ae3bf
VO		 993 br_port_flags_change(p, changed_mask);
994
25c71c75 995 if (tb[IFLA_BRPORT_COST]) {
996 err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
997 if (err)
998 return err;
999 }
1000
1001 if (tb[IFLA_BRPORT_PRIORITY]) {
1002 err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY]));
1003 if (err)
1004 return err;
1005 }
1006
1007 if (tb[IFLA_BRPORT_STATE]) {
1008 err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE]));
1009 if (err)
1010 return err;
1011 }
e028e4b8 1012
9b0c6e4d
NA		 1013 if (tb[IFLA_BRPORT_FLUSH])
1014 br_fdb_delete_by_port(p->br, p, 0, 0);
1015
5d6ae479
NA		 1016#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1017 if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) {
1018 u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]);
1019
a53581d5
NA		 1020 err = br_multicast_set_port_router(&p->multicast_ctx,
1021 mcast_router);
5d6ae479
NA		 1022 if (err)
1023 return err;
1024 }
2dba407f
NA		 1025
1026 if (tb[IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT]) {
1027 u32 hlimit;
1028
1029 hlimit = nla_get_u32(tb[IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT]);
1030 err = br_multicast_eht_set_hosts_limit(p, hlimit);
1031 if (err)
1032 return err;
1033 }
a1aee20d
PM		 1034
1035 if (tb[IFLA_BRPORT_MCAST_MAX_GROUPS]) {
1036 u32 max_groups;
1037
1038 max_groups = nla_get_u32(tb[IFLA_BRPORT_MCAST_MAX_GROUPS]);
1039 br_multicast_ngroups_set_max(&p->multicast_ctx, max_groups);
1040 }
5d6ae479 1041#endif
5af48b59
NA		 1042
1043 if (tb[IFLA_BRPORT_GROUP_FWD_MASK]) {
1044 u16 fwd_mask = nla_get_u16(tb[IFLA_BRPORT_GROUP_FWD_MASK]);
1045
1046 if (fwd_mask & BR_GROUPFWD_MACPAUSE)
1047 return -EINVAL;
1048 p->group_fwd_mask = fwd_mask;
1049 }
1050
2756f68c
NA		 1051 if (tb[IFLA_BRPORT_BACKUP_PORT]) {
1052 struct net_device *backup_dev = NULL;
1053 u32 backup_ifindex;
1054
1055 backup_ifindex = nla_get_u32(tb[IFLA_BRPORT_BACKUP_PORT]);
1056 if (backup_ifindex) {
1057 backup_dev = __dev_get_by_index(dev_net(p->dev),
1058 backup_ifindex);
1059 if (!backup_dev)
1060 return -ENOENT;
1061 }
1062
1063 err = nbp_backup_change(p, backup_dev);
1064 if (err)
1065 return err;
1066 }
1067
25c71c75 1068 return 0;
1069}
1070
1071/* Change state and parameters on port. */
2fd527b7
PM		 1072int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags,
1073 struct netlink_ext_ack *extack)
11dc1f36 1074{
92899063
NA		 1075 struct net_bridge *br = (struct net_bridge *)netdev_priv(dev);
1076 struct nlattr *tb[IFLA_BRPORT_MAX + 1];
1077 struct net_bridge_port *p;
74685962 1078 struct nlattr *protinfo;
407af329 1079 struct nlattr *afspec;
e19b42a1 1080 bool changed = false;
41c498b9 1081 int err = 0;
11dc1f36 1082
c60ee67f
H		 1083 protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO);
1084 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329 1085 if (!protinfo && !afspec)
25c71c75 1086 return 0;
11dc1f36 1087
ec1e5610 1088 p = br_port_get_rtnl(dev);
407af329 1089 /* We want to accept dev as bridge itself if the AF_SPEC
8e3bff96 1090 * is set to see if someone is setting vlan info on the bridge
407af329 1091 */
7b99a993 1092 if (!p && !afspec)
b5ed54e9 1093 return -EINVAL;
11dc1f36 1094
407af329
VY		 1095 if (p && protinfo) {
1096 if (protinfo->nla_type & NLA_F_NESTED) {
8cb08174
JB		 1097 err = nla_parse_nested_deprecated(tb, IFLA_BRPORT_MAX,
1098 protinfo,
1099 br_port_policy,
1100 NULL);
407af329
VY		 1101 if (err)
1102 return err;
1103
1104 spin_lock_bh(&p->br->lock);
078bbb85 1105 err = br_setport(p, tb, extack);
407af329
VY		 1106 spin_unlock_bh(&p->br->lock);
1107 } else {
8e3bff96 1108 /* Binary compatibility with old RSTP */
407af329
VY		 1109 if (nla_len(protinfo) < sizeof(u8))
1110 return -EINVAL;
1111
1112 spin_lock_bh(&p->br->lock);
1113 err = br_set_port_state(p, nla_get_u8(protinfo));
1114 spin_unlock_bh(&p->br->lock);
1115 }
25c71c75 1116 if (err)
407af329 1117 goto out;
e19b42a1 1118 changed = true;
407af329 1119 }
11dc1f36 1120
92899063 1121 if (afspec)
169327d5 1122 err = br_afspec(br, p, afspec, RTM_SETLINK, &changed, extack);
b03b6dd5 1123
e19b42a1 1124 if (changed)
92899063 1125 br_ifinfo_notify(RTM_NEWLINK, br, p);
407af329 1126out:
25c71c75 1127 return err;
11dc1f36
SH		 1128}
1129
407af329 1130/* Delete port information */
add511b3 1131int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags)
407af329 1132{
92899063 1133 struct net_bridge *br = (struct net_bridge *)netdev_priv(dev);
407af329 1134 struct net_bridge_port *p;
92899063 1135 struct nlattr *afspec;
e19b42a1 1136 bool changed = false;
8508025c 1137 int err = 0;
407af329 1138
c60ee67f 1139 afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
407af329
VY		 1140 if (!afspec)
1141 return 0;
1142
1143 p = br_port_get_rtnl(dev);
1144 /* We want to accept dev as bridge itself as well */
254ec036 1145 if (!p && !netif_is_bridge_master(dev))
407af329
VY		 1146 return -EINVAL;
1147
169327d5 1148 err = br_afspec(br, p, afspec, RTM_DELLINK, &changed, NULL);
e19b42a1 1149 if (changed)
02dba438
RP		 1150 /* Send RTM_NEWLINK because userspace
1151 * expects RTM_NEWLINK for vlan dels
1152 */
92899063 1153 br_ifinfo_notify(RTM_NEWLINK, br, p);
407af329
VY		 1154
1155 return err;
1156}
a8b8a889
MS		 1157
1158static int br_validate(struct nlattr *tb[], struct nlattr *data[],
1159 struct netlink_ext_ack *extack)
bb900b27 1160{
1161 if (tb[IFLA_ADDRESS]) {
1162 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
1163 return -EINVAL;
1164 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
1165 return -EADDRNOTAVAIL;
1166 }
1167
d2d427b3
TM		 1168 if (!data)
1169 return 0;
1170
1171#ifdef CONFIG_BRIDGE_VLAN_FILTERING
a98c0c47
MD		 1172 if (data[IFLA_BR_VLAN_PROTOCOL] &&
1173 !eth_type_vlan(nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])))
1174 return -EPROTONOSUPPORT;
a2858602
TJ		 1175
1176 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
1177 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
1178
1179 if (defpvid >= VLAN_VID_MASK)
1180 return -EINVAL;
1181 }
d2d427b3
TM		 1182#endif
1183
bb900b27 1184 return 0;
1185}
1186
3ac636b8
JP		 1187static int br_port_slave_changelink(struct net_device *brdev,
1188 struct net_device *dev,
1189 struct nlattr *tb[],
17dd0ec4
MS		 1190 struct nlattr *data[],
1191 struct netlink_ext_ack *extack)
3ac636b8 1192{
963ad948
NA		 1193 struct net_bridge *br = netdev_priv(brdev);
1194 int ret;
1195
3ac636b8
JP		 1196 if (!data)
1197 return 0;
963ad948
NA		 1198
1199 spin_lock_bh(&br->lock);
078bbb85 1200 ret = br_setport(br_port_get_rtnl(dev), data, extack);
963ad948
NA		 1201 spin_unlock_bh(&br->lock);
1202
1203 return ret;
3ac636b8
JP		 1204}
1205
ced8283f
JP		 1206static int br_port_fill_slave_info(struct sk_buff *skb,
1207 const struct net_device *brdev,
1208 const struct net_device *dev)
1209{
1210 return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
1211}
1212
1213static size_t br_port_get_slave_size(const struct net_device *brdev,
1214 const struct net_device *dev)
1215{
1216 return br_port_info_size();
1217}
1218
13323516
JP		 1219static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = {
1220 [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 },
1221 [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 },
1222 [IFLA_BR_MAX_AGE] = { .type = NLA_U32 },
af615762
JT		 1223 [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 },
1224 [IFLA_BR_STP_STATE] = { .type = NLA_U32 },
1225 [IFLA_BR_PRIORITY] = { .type = NLA_U16 },
a7854037 1226 [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 },
d2d427b3 1227 [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 },
7910228b 1228 [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 },
111189ab
NA		 1229 [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY,
1230 .len = ETH_ALEN },
a9a6bc70 1231 [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 },
89126327 1232 [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },
295141d9 1233 [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },
ba062d7c 1234 [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },
431db3c0 1235 [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },
858079fd 1236 [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 },
79b859f5 1237 [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
b89e6bab 1238 [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
7e4df51e
NA		 1239 [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
1240 [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
1241 [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
1242 [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
1243 [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
1244 [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
93870cc0
NA		 1245 [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 },
1246 [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 },
1247 [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 },
0f963b75 1248 [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 },
6dada9b1 1249 [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 },
1080ab95 1250 [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 },
5e923585 1251 [IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 },
aa2ae3e7 1252 [IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 },
9163a0fc 1253 [IFLA_BR_VLAN_STATS_PER_PORT] = { .type = NLA_U8 },
8140860c
JB		 1254 [IFLA_BR_MULTI_BOOLOPT] =
1255 NLA_POLICY_EXACT_LEN(sizeof(struct br_boolopt_multi)),
13323516
JP		 1256};
1257
1258static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
ad744b22
MS		 1259 struct nlattr *data[],
1260 struct netlink_ext_ack *extack)
13323516
JP		 1261{
1262 struct net_bridge *br = netdev_priv(brdev);
1263 int err;
1264
1265 if (!data)
1266 return 0;
1267
1268 if (data[IFLA_BR_FORWARD_DELAY]) {
1269 err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY]));
1270 if (err)
1271 return err;
1272 }
1273
1274 if (data[IFLA_BR_HELLO_TIME]) {
1275 err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME]));
1276 if (err)
1277 return err;
1278 }
1279
1280 if (data[IFLA_BR_MAX_AGE]) {
1281 err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE]));
1282 if (err)
1283 return err;
1284 }
1285
af615762 1286 if (data[IFLA_BR_AGEING_TIME]) {
c62987bb
SF		 1287 err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
1288 if (err)
1289 return err;
af615762
JT		 1290 }
1291
1292 if (data[IFLA_BR_STP_STATE]) {
1293 u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]);
1294
419dba8a
HV		 1295 err = br_stp_set_enabled(br, stp_enabled, extack);
1296 if (err)
1297 return err;
af615762
JT		 1298 }
1299
1300 if (data[IFLA_BR_PRIORITY]) {
1301 u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]);
1302
1303 br_stp_set_bridge_priority(br, priority);
1304 }
1305
a7854037
NA		 1306 if (data[IFLA_BR_VLAN_FILTERING]) {
1307 u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]);
1308
9e781401 1309 err = br_vlan_filter_toggle(br, vlan_filter, extack);
a7854037
NA		 1310 if (err)
1311 return err;
1312 }
1313
d2d427b3
TM		 1314#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1315 if (data[IFLA_BR_VLAN_PROTOCOL]) {
1316 __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]);
1317
dcbdf135 1318 err = __br_vlan_set_proto(br, vlan_proto, extack);
d2d427b3
TM		 1319 if (err)
1320 return err;
1321 }
0f963b75
NA		 1322
1323 if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
1324 __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
1325
169327d5 1326 err = __br_vlan_set_default_pvid(br, defpvid, extack);
0f963b75
NA		 1327 if (err)
1328 return err;
1329 }
6dada9b1
NA		 1330
1331 if (data[IFLA_BR_VLAN_STATS_ENABLED]) {
1332 __u8 vlan_stats = nla_get_u8(data[IFLA_BR_VLAN_STATS_ENABLED]);
1333
1334 err = br_vlan_set_stats(br, vlan_stats);
1335 if (err)
1336 return err;
1337 }
9163a0fc
NA		 1338
1339 if (data[IFLA_BR_VLAN_STATS_PER_PORT]) {
1340 __u8 per_port = nla_get_u8(data[IFLA_BR_VLAN_STATS_PER_PORT]);
1341
1342 err = br_vlan_set_stats_per_port(br, per_port);
1343 if (err)
1344 return err;
1345 }
d2d427b3
TM		 1346#endif
1347
7910228b
NA		 1348 if (data[IFLA_BR_GROUP_FWD_MASK]) {
1349 u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]);
1350
1351 if (fwd_mask & BR_GROUPFWD_RESTRICTED)
1352 return -EINVAL;
1353 br->group_fwd_mask = fwd_mask;
1354 }
1355
111189ab
NA		 1356 if (data[IFLA_BR_GROUP_ADDR]) {
1357 u8 new_addr[ETH_ALEN];
1358
1359 if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN)
1360 return -EINVAL;
1361 memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN);
1362 if (!is_link_local_ether_addr(new_addr))
1363 return -EINVAL;
1364 if (new_addr[5] == 1 || /* 802.3x Pause address */
1365 new_addr[5] == 2 || /* 802.3ad Slow protocols */
1366 new_addr[5] == 3) /* 802.1X PAE address */
1367 return -EINVAL;
1368 spin_lock_bh(&br->lock);
1369 memcpy(br->group_addr, new_addr, sizeof(br->group_addr));
1370 spin_unlock_bh(&br->lock);
be3664a0 1371 br_opt_toggle(br, BROPT_GROUP_ADDR_SET, true);
111189ab
NA		 1372 br_recalculate_fwd_mask(br);
1373 }
1374
1f78ee14
NA		 1375 if (data[IFLA_BR_FDB_FLUSH]) {
1376 struct net_bridge_fdb_flush_desc desc = {
628ac04a 1377 .flags_mask = BIT(BR_FDB_STATIC)
1f78ee14
NA		 1378 };
1379
1380 br_fdb_flush(br, &desc);
1381 }
150217c6 1382
a9a6bc70
NA		 1383#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1384 if (data[IFLA_BR_MCAST_ROUTER]) {
1385 u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]);
1386
a97df080
NA		 1387 err = br_multicast_set_router(&br->multicast_ctx,
1388 multicast_router);
a9a6bc70
NA		 1389 if (err)
1390 return err;
1391 }
89126327
NA		 1392
1393 if (data[IFLA_BR_MCAST_SNOOPING]) {
1394 u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]);
1395
ae1ea84b
FF		 1396 err = br_multicast_toggle(br, mcast_snooping, extack);
1397 if (err)
1398 return err;
89126327 1399 }
295141d9
NA		 1400
1401 if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) {
1402 u8 val;
1403
1404 val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]);
675779ad 1405 br_opt_toggle(br, BROPT_MULTICAST_QUERY_USE_IFADDR, !!val);
295141d9 1406 }
ba062d7c
NA		 1407
1408 if (data[IFLA_BR_MCAST_QUERIER]) {
1409 u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]);
1410
62938182
NA		 1411 err = br_multicast_set_querier(&br->multicast_ctx,
1412 mcast_querier);
ba062d7c
NA		 1413 if (err)
1414 return err;
1415 }
431db3c0 1416
cf332bca
NA		 1417 if (data[IFLA_BR_MCAST_HASH_ELASTICITY])
1418 br_warn(br, "the hash_elasticity option has been deprecated and is always %u\n",
1419 RHT_ELASTICITY);
858079fd 1420
19e3a9c9
NA		 1421 if (data[IFLA_BR_MCAST_HASH_MAX])
1422 br->hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]);
79b859f5
NA		 1423
1424 if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) {
1425 u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]);
1426
d3d065c0 1427 br->multicast_ctx.multicast_last_member_count = val;
79b859f5 1428 }
b89e6bab
NA		 1429
1430 if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) {
1431 u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]);
1432
d3d065c0 1433 br->multicast_ctx.multicast_startup_query_count = val;
b89e6bab 1434 }
7e4df51e
NA		 1435
1436 if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) {
1437 u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]);
1438
d3d065c0 1439 br->multicast_ctx.multicast_last_member_interval = clock_t_to_jiffies(val);
7e4df51e
NA		 1440 }
1441
1442 if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) {
1443 u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]);
1444
d3d065c0 1445 br->multicast_ctx.multicast_membership_interval = clock_t_to_jiffies(val);
7e4df51e
NA		 1446 }
1447
1448 if (data[IFLA_BR_MCAST_QUERIER_INTVL]) {
1449 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]);
1450
d3d065c0 1451 br->multicast_ctx.multicast_querier_interval = clock_t_to_jiffies(val);
7e4df51e
NA		 1452 }
1453
1454 if (data[IFLA_BR_MCAST_QUERY_INTVL]) {
1455 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]);
1456
99b40610 1457 br_multicast_set_query_intvl(&br->multicast_ctx, val);
7e4df51e
NA		 1458 }
1459
1460 if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) {
1461 u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]);
1462
d3d065c0 1463 br->multicast_ctx.multicast_query_response_interval = clock_t_to_jiffies(val);
7e4df51e
NA		 1464 }
1465
1466 if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) {
1467 u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]);
1468
f83a112b 1469 br_multicast_set_startup_query_intvl(&br->multicast_ctx, val);
7e4df51e 1470 }
1080ab95
NA		 1471
1472 if (data[IFLA_BR_MCAST_STATS_ENABLED]) {
1473 __u8 mcast_stats;
1474
1475 mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]);
675779ad 1476 br_opt_toggle(br, BROPT_MULTICAST_STATS_ENABLED, !!mcast_stats);
1080ab95 1477 }
5e923585
NA		 1478
1479 if (data[IFLA_BR_MCAST_IGMP_VERSION]) {
1480 __u8 igmp_version;
1481
1482 igmp_version = nla_get_u8(data[IFLA_BR_MCAST_IGMP_VERSION]);
df271cd6
NA		 1483 err = br_multicast_set_igmp_version(&br->multicast_ctx,
1484 igmp_version);
5e923585
NA		 1485 if (err)
1486 return err;
1487 }
aa2ae3e7
NA		 1488
1489#if IS_ENABLED(CONFIG_IPV6)
1490 if (data[IFLA_BR_MCAST_MLD_VERSION]) {
1491 __u8 mld_version;
1492
1493 mld_version = nla_get_u8(data[IFLA_BR_MCAST_MLD_VERSION]);
df271cd6
NA		 1494 err = br_multicast_set_mld_version(&br->multicast_ctx,
1495 mld_version);
aa2ae3e7
NA		 1496 if (err)
1497 return err;
1498 }
1499#endif
a9a6bc70 1500#endif
93870cc0
NA		 1501#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1502 if (data[IFLA_BR_NF_CALL_IPTABLES]) {
1503 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]);
1504
8df3510f 1505 br_opt_toggle(br, BROPT_NF_CALL_IPTABLES, !!val);
93870cc0
NA		 1506 }
1507
1508 if (data[IFLA_BR_NF_CALL_IP6TABLES]) {
1509 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]);
1510
8df3510f 1511 br_opt_toggle(br, BROPT_NF_CALL_IP6TABLES, !!val);
93870cc0
NA		 1512 }
1513
1514 if (data[IFLA_BR_NF_CALL_ARPTABLES]) {
1515 u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]);
1516
8df3510f 1517 br_opt_toggle(br, BROPT_NF_CALL_ARPTABLES, !!val);
93870cc0
NA		 1518 }
1519#endif
a9a6bc70 1520
a428afe8
NA		 1521 if (data[IFLA_BR_MULTI_BOOLOPT]) {
1522 struct br_boolopt_multi *bm;
1523
1524 bm = nla_data(data[IFLA_BR_MULTI_BOOLOPT]);
1525 err = br_boolopt_multi_toggle(br, bm, extack);
1526 if (err)
1527 return err;
1528 }
1529
13323516
JP		 1530 return 0;
1531}
1532
b6677449 1533static int br_dev_newlink(struct net *src_net, struct net_device *dev,
7a3f4a18
MS		 1534 struct nlattr *tb[], struct nlattr *data[],
1535 struct netlink_ext_ack *extack)
b6677449
IV		 1536{
1537 struct net_bridge *br = netdev_priv(dev);
1538 int err;
1539
84aeb437
NA		 1540 err = register_netdevice(dev);
1541 if (err)
1542 return err;
1543
b6677449
IV		 1544 if (tb[IFLA_ADDRESS]) {
1545 spin_lock_bh(&br->lock);
1546 br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
1547 spin_unlock_bh(&br->lock);
1548 }
1549
ad744b22 1550 err = br_changelink(dev, tb, data, extack);
5b8d5429 1551 if (err)
84aeb437
NA		 1552 br_dev_delete(dev, NULL);
1553
5b8d5429 1554 return err;
b6677449
IV		 1555}
1556
e5c3ea5c
JP		 1557static size_t br_get_size(const struct net_device *brdev)
1558{
1559 return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */
1560 nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */
1561 nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */
af615762
JT		 1562 nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */
1563 nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */
1564 nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */
a7854037 1565 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */
d2d427b3
TM		 1566#ifdef CONFIG_BRIDGE_VLAN_FILTERING
1567 nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */
0f963b75 1568 nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */
6dada9b1 1569 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */
9163a0fc 1570 nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_PER_PORT */
d2d427b3 1571#endif
7910228b 1572 nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */
5127c81f 1573 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */
7599a220 1574 nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */
8762ba68 1575 nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */
684dd248 1576 nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */
b89e6bab
NA		 1577 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */
1578 nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */
12a0faa3
ND		 1579 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */
1580 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */
1581 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */
1582 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */
111189ab 1583 nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */
a9a6bc70
NA		 1584#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1585 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */
89126327 1586 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */
295141d9 1587 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */
ba062d7c 1588 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */
1080ab95 1589 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */
b89e6bab
NA		 1590 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */
1591 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */
1592 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */
1593 nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */
12a0faa3
ND		 1594 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */
1595 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */
1596 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */
1597 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */
1598 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */
1599 nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */
5e923585 1600 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_IGMP_VERSION */
aa2ae3e7 1601 nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_MLD_VERSION */
c7fa1d9b 1602 br_multicast_querier_state_size() + /* IFLA_BR_MCAST_QUERIER_STATE */
93870cc0
NA		 1603#endif
1604#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1605 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */
1606 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */
1607 nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */
a9a6bc70 1608#endif
a428afe8 1609 nla_total_size(sizeof(struct br_boolopt_multi)) + /* IFLA_BR_MULTI_BOOLOPT */
e5c3ea5c
JP		 1610 0;
1611}
1612
1613static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
1614{
1615 struct net_bridge *br = netdev_priv(brdev);
1616 u32 forward_delay = jiffies_to_clock_t(br->forward_delay);
1617 u32 hello_time = jiffies_to_clock_t(br->hello_time);
1618 u32 age_time = jiffies_to_clock_t(br->max_age);
af615762
JT		 1619 u32 ageing_time = jiffies_to_clock_t(br->ageing_time);
1620 u32 stp_enabled = br->stp_enabled;
1621 u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1];
1f51445a 1622 u8 vlan_enabled = br_vlan_enabled(br->dev);
a428afe8 1623 struct br_boolopt_multi bm;
4917a154
NA		 1624 u64 clockval;
1625
1626 clockval = br_timer_value(&br->hello_timer);
12a0faa3 1627 if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1628 return -EMSGSIZE;
1629 clockval = br_timer_value(&br->tcn_timer);
12a0faa3 1630 if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD))
4917a154
NA		 1631 return -EMSGSIZE;
1632 clockval = br_timer_value(&br->topology_change_timer);
12a0faa3
ND		 1633 if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval,
1634 IFLA_BR_PAD))
4917a154 1635 return -EMSGSIZE;
f7cdee8a 1636 clockval = br_timer_value(&br->gc_work.timer);
12a0faa3 1637 if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD))
4917a154 1638 return -EMSGSIZE;
e5c3ea5c 1639
a428afe8 1640 br_boolopt_multi_get(br, &bm);
e5c3ea5c
JP		 1641 if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) ||
1642 nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) ||
af615762
JT		 1643 nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) ||
1644 nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) ||
1645 nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) ||
a7854037 1646 nla_put_u16(skb, IFLA_BR_PRIORITY, priority) ||
7910228b 1647 nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) ||
4917a154
NA		 1648 nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) ||
1649 nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id),
1650 &br->bridge_id) ||
1651 nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id),
1652 &br->designated_root) ||
684dd248 1653 nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) ||
ed416309
NA		 1654 nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) ||
1655 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) ||
1656 nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
d76bd14e 1657 br->topology_change_detected) ||
a428afe8
NA		 1658 nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr) ||
1659 nla_put(skb, IFLA_BR_MULTI_BOOLOPT, sizeof(bm), &bm))
e5c3ea5c
JP		 1660 return -EMSGSIZE;
1661
d2d427b3 1662#ifdef CONFIG_BRIDGE_VLAN_FILTERING
0f963b75 1663 if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) ||
6dada9b1 1664 nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) ||
ae75767e 1665 nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED,
9163a0fc
NA		 1666 br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) ||
1667 nla_put_u8(skb, IFLA_BR_VLAN_STATS_PER_PORT,
600bea7d 1668 br_opt_get(br, BROPT_VLAN_STATS_PER_PORT)))
d2d427b3
TM		 1669 return -EMSGSIZE;
1670#endif
a9a6bc70 1671#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
d3d065c0
NA		 1672 if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER,
1673 br->multicast_ctx.multicast_router) ||
13cefad2
NA		 1674 nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING,
1675 br_opt_get(br, BROPT_MULTICAST_ENABLED)) ||
295141d9 1676 nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,
675779ad
NA		 1677 br_opt_get(br, BROPT_MULTICAST_QUERY_USE_IFADDR)) ||
1678 nla_put_u8(skb, IFLA_BR_MCAST_QUERIER,
62938182 1679 br->multicast_ctx.multicast_querier) ||
1080ab95 1680 nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED,
675779ad 1681 br_opt_get(br, BROPT_MULTICAST_STATS_ENABLED)) ||
cf332bca 1682 nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY, RHT_ELASTICITY) ||
79b859f5
NA		 1683 nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) ||
1684 nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT,
d3d065c0 1685 br->multicast_ctx.multicast_last_member_count) ||
b89e6bab 1686 nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT,
d3d065c0 1687 br->multicast_ctx.multicast_startup_query_count) ||
5e923585 1688 nla_put_u8(skb, IFLA_BR_MCAST_IGMP_VERSION,
c7fa1d9b
NA		 1689 br->multicast_ctx.multicast_igmp_version) ||
1690 br_multicast_dump_querier_state(skb, &br->multicast_ctx,
1691 IFLA_BR_MCAST_QUERIER_STATE))
a9a6bc70 1692 return -EMSGSIZE;
aa2ae3e7
NA		 1693#if IS_ENABLED(CONFIG_IPV6)
1694 if (nla_put_u8(skb, IFLA_BR_MCAST_MLD_VERSION,
d3d065c0 1695 br->multicast_ctx.multicast_mld_version))
aa2ae3e7
NA		 1696 return -EMSGSIZE;
1697#endif
d3d065c0 1698 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_last_member_interval);
12a0faa3
ND		 1699 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval,
1700 IFLA_BR_PAD))
7e4df51e 1701 return -EMSGSIZE;
d3d065c0 1702 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_membership_interval);
12a0faa3
ND		 1703 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval,
1704 IFLA_BR_PAD))
7e4df51e 1705 return -EMSGSIZE;
d3d065c0 1706 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_querier_interval);
12a0faa3
ND		 1707 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval,
1708 IFLA_BR_PAD))
7e4df51e 1709 return -EMSGSIZE;
d3d065c0 1710 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_query_interval);
12a0faa3
ND		 1711 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval,
1712 IFLA_BR_PAD))
7e4df51e 1713 return -EMSGSIZE;
d3d065c0 1714 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_query_response_interval);
12a0faa3
ND		 1715 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval,
1716 IFLA_BR_PAD))
7e4df51e 1717 return -EMSGSIZE;
d3d065c0 1718 clockval = jiffies_to_clock_t(br->multicast_ctx.multicast_startup_query_interval);
12a0faa3
ND		 1719 if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval,
1720 IFLA_BR_PAD))
7e4df51e 1721 return -EMSGSIZE;
a9a6bc70 1722#endif
93870cc0
NA		 1723#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
1724 if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES,
8df3510f 1725 br_opt_get(br, BROPT_NF_CALL_IPTABLES) ? 1 : 0) ||
93870cc0 1726 nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES,
8df3510f 1727 br_opt_get(br, BROPT_NF_CALL_IP6TABLES) ? 1 : 0) ||
93870cc0 1728 nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES,
8df3510f 1729 br_opt_get(br, BROPT_NF_CALL_ARPTABLES) ? 1 : 0))
93870cc0
NA		 1730 return -EMSGSIZE;
1731#endif
a9a6bc70 1732
e5c3ea5c
JP		 1733 return 0;
1734}
1735
d5ff8c41 1736static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
a60c0903 1737{
d5ff8c41 1738 struct net_bridge_port *p = NULL;
a60c0903
NA		 1739 struct net_bridge_vlan_group *vg;
1740 struct net_bridge_vlan *v;
d5ff8c41 1741 struct net_bridge *br;
a60c0903
NA		 1742 int numvls = 0;
1743
d5ff8c41
NA		 1744 switch (attr) {
1745 case IFLA_STATS_LINK_XSTATS:
1746 br = netdev_priv(dev);
1747 vg = br_vlan_group(br);
1748 break;
1749 case IFLA_STATS_LINK_XSTATS_SLAVE:
1750 p = br_port_get_rtnl(dev);
1751 if (!p)
1752 return 0;
d5ff8c41
NA		 1753 vg = nbp_vlan_group(p);
1754 break;
1755 default:
1756 return 0;
1757 }
1758
1080ab95
NA		 1759 if (vg) {
1760 /* we need to count all, even placeholder entries */
1761 list_for_each_entry(v, &vg->vlan_list, vlist)
1762 numvls++;
1763 }
a60c0903 1764
a60c0903 1765 return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
dbe0b880 1766 nla_total_size_64bit(sizeof(struct br_mcast_stats)) +
0854a051 1767 (p ? nla_total_size_64bit(sizeof(p->stp_xstats)) : 0) +
a60c0903
NA		 1768 nla_total_size(0);
1769}
1770
d5ff8c41
NA		 1771static int br_fill_linkxstats(struct sk_buff *skb,
1772 const struct net_device *dev,
1773 int *prividx, int attr)
80e73cc5 1774{
d5ff8c41
NA		 1775 struct nlattr *nla __maybe_unused;
1776 struct net_bridge_port *p = NULL;
1777 struct net_bridge_vlan_group *vg;
1778 struct net_bridge_vlan *v;
1779 struct net_bridge *br;
1780 struct nlattr *nest;
1781 int vl_idx = 0;
80e73cc5
NA		 1782
1783 switch (attr) {
1784 case IFLA_STATS_LINK_XSTATS:
d5ff8c41
NA		 1785 br = netdev_priv(dev);
1786 vg = br_vlan_group(br);
80e73cc5
NA		 1787 break;
1788 case IFLA_STATS_LINK_XSTATS_SLAVE:
d5ff8c41
NA		 1789 p = br_port_get_rtnl(dev);
1790 if (!p)
1791 return 0;
1792 br = p->br;
1793 vg = nbp_vlan_group(p);
80e73cc5 1794 break;
d5ff8c41
NA		 1795 default:
1796 return -EINVAL;
80e73cc5
NA		 1797 }
1798
ae0be8de 1799 nest = nla_nest_start_noflag(skb, LINK_XSTATS_TYPE_BRIDGE);
a60c0903
NA		 1800 if (!nest)
1801 return -EMSGSIZE;
a60c0903 1802
1080ab95 1803 if (vg) {
72f4af4e
NA		 1804 u16 pvid;
1805
1806 pvid = br_get_pvid(vg);
1080ab95
NA		 1807 list_for_each_entry(v, &vg->vlan_list, vlist) {
1808 struct bridge_vlan_xstats vxi;
281cc284 1809 struct pcpu_sw_netstats stats;
1080ab95
NA		 1810
1811 if (++vl_idx < *prividx)
1812 continue;
1813 memset(&vxi, 0, sizeof(vxi));
1814 vxi.vid = v->vid;
61ba1a2d 1815 vxi.flags = v->flags;
72f4af4e
NA		 1816 if (v->vid == pvid)
1817 vxi.flags |= BRIDGE_VLAN_INFO_PVID;
1080ab95 1818 br_vlan_get_stats(v, &stats);
9962acef
ED		 1819 vxi.rx_bytes = u64_stats_read(&stats.rx_bytes);
1820 vxi.rx_packets = u64_stats_read(&stats.rx_packets);
1821 vxi.tx_bytes = u64_stats_read(&stats.tx_bytes);
1822 vxi.tx_packets = u64_stats_read(&stats.tx_packets);
1080ab95
NA		 1823
1824 if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi))
1825 goto nla_put_failure;
1826 }
1827 }
1828
1829#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
1830 if (++vl_idx >= *prividx) {
1831 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST,
1832 sizeof(struct br_mcast_stats),
1833 BRIDGE_XSTATS_PAD);
1834 if (!nla)
a60c0903 1835 goto nla_put_failure;
d5ff8c41 1836 br_multicast_get_stats(br, p, nla_data(nla));
a60c0903 1837 }
1080ab95 1838#endif
de179966
VD		 1839
1840 if (p) {
1841 nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_STP,
1842 sizeof(p->stp_xstats),
1843 BRIDGE_XSTATS_PAD);
1844 if (!nla)
1845 goto nla_put_failure;
1846
1847 spin_lock_bh(&br->lock);
1848 memcpy(nla_data(nla), &p->stp_xstats, sizeof(p->stp_xstats));
1849 spin_unlock_bh(&br->lock);
1850 }
1851
a60c0903
NA		 1852 nla_nest_end(skb, nest);
1853 *prividx = 0;
1080ab95 1854
a60c0903
NA		 1855 return 0;
1856
1857nla_put_failure:
1858 nla_nest_end(skb, nest);
1859 *prividx = vl_idx;
1860
1861 return -EMSGSIZE;
1862}
fed0a159 1863
207895fd 1864static struct rtnl_af_ops br_af_ops __read_mostly = {
6cbdceeb 1865 .family = AF_BRIDGE,
b1974ed0 1866 .get_link_af_size = br_get_link_af_size_filtered,
6cbdceeb
VY		 1867};
1868
149ddd83 1869struct rtnl_link_ops br_link_ops __read_mostly = {
ced8283f
JP		 1870 .kind = "bridge",
1871 .priv_size = sizeof(struct net_bridge),
1872 .setup = br_dev_setup,
eb4cb851 1873 .maxtype = IFLA_BR_MAX,
13323516 1874 .policy = br_policy,
ced8283f
JP		 1875 .validate = br_validate,
1876 .newlink = br_dev_newlink,
13323516 1877 .changelink = br_changelink,
ced8283f 1878 .dellink = br_dev_delete,
e5c3ea5c
JP		 1879 .get_size = br_get_size,
1880 .fill_info = br_fill_info,
a60c0903
NA		 1881 .fill_linkxstats = br_fill_linkxstats,
1882 .get_linkxstats_size = br_get_linkxstats_size,
3ac636b8
JP		 1883
1884 .slave_maxtype = IFLA_BRPORT_MAX,
1885 .slave_policy = br_port_policy,
1886 .slave_changelink = br_port_slave_changelink,
ced8283f
JP		 1887 .get_slave_size = br_port_get_slave_size,
1888 .fill_slave_info = br_port_fill_slave_info,
bb900b27 1889};
11dc1f36 1890
32fe21c0 1891int __init br_netlink_init(void)
11dc1f36 1892{
3ec8e9f0
VY		 1893 int err;
1894
8dcea187 1895 br_vlan_rtnl_init();
3678a9d8 1896 rtnl_af_register(&br_af_ops);
3ec8e9f0 1897
6cbdceeb
VY		 1898 err = rtnl_link_register(&br_link_ops);
1899 if (err)
1900 goto out_af;
1901
3ec8e9f0 1902 return 0;
6cbdceeb
VY		 1903
1904out_af:
1905 rtnl_af_unregister(&br_af_ops);
3ec8e9f0 1906 return err;
11dc1f36
SH		 1907}
1908
34666d46 1909void br_netlink_fini(void)
11dc1f36 1910{
8dcea187 1911 br_vlan_rtnl_uninit();
6cbdceeb 1912 rtnl_af_unregister(&br_af_ops);
bb900b27 1913 rtnl_link_unregister(&br_link_ops);
11dc1f36 1914}
Linux 6.x block layer and io_uring tree(s)