1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Bridge netlink control interface |
4 | * |
5 | * Authors: |
6 | * Stephen Hemminger <shemminger@osdl.org> |
7 | */ |
8 | |
9 | #include <linux/kernel.h> |
10 | #include <linux/slab.h> |
11 | #include <linux/etherdevice.h> |
12 | #include <net/rtnetlink.h> |
13 | #include <net/net_namespace.h> |
14 | #include <net/sock.h> |
15 | #include <uapi/linux/if_bridge.h> |
16 | |
17 | #include "br_private.h" |
18 | #include "br_private_stp.h" |
19 | #include "br_private_cfm.h" |
20 | #include "br_private_tunnel.h" |
21 | #include "br_private_mcast_eht.h" |
22 | |
23 | static int __get_num_vlan_infos(struct net_bridge_vlan_group *vg, |
24 | u32 filter_mask) |
25 | { |
26 | struct net_bridge_vlan *v; |
27 | u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0; |
28 | u16 flags, pvid; |
29 | int num_vlans = 0; |
30 | |
31 | if (!(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) |
32 | return 0; |
33 | |
34 | pvid = br_get_pvid(vg); |
35 | /* Count number of vlan infos */ |
36 | list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { |
37 | flags = 0; |
38 | /* only a context, bridge vlan not activated */ |
39 | if (!br_vlan_should_use(v)) |
40 | continue; |
41 | if (v->vid == pvid) |
42 | flags |= BRIDGE_VLAN_INFO_PVID; |
43 | |
44 | if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED) |
45 | flags |= BRIDGE_VLAN_INFO_UNTAGGED; |
46 | |
47 | if (vid_range_start == 0) { |
48 | goto initvars; |
49 | } else if ((v->vid - vid_range_end) == 1 && |
50 | flags == vid_range_flags) { |
51 | vid_range_end = v->vid; |
52 | continue; |
53 | } else { |
54 | if ((vid_range_end - vid_range_start) > 0) |
55 | num_vlans += 2; |
56 | else |
57 | num_vlans += 1; |
58 | } |
59 | initvars: |
60 | vid_range_start = v->vid; |
61 | vid_range_end = v->vid; |
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 | |
75 | static int br_get_num_vlan_infos(struct net_bridge_vlan_group *vg, |
76 | u32 filter_mask) |
77 | { |
78 | int num_vlans; |
79 | |
80 | if (!vg) |
81 | return 0; |
82 | |
83 | if (filter_mask & RTEXT_FILTER_BRVLAN) |
84 | return vg->num_vlans; |
85 | |
86 | rcu_read_lock(); |
87 | num_vlans = __get_num_vlan_infos(vg, filter_mask); |
88 | rcu_read_unlock(); |
89 | |
90 | return num_vlans; |
91 | } |
92 | |
93 | static size_t br_get_link_af_size_filtered(const struct net_device *dev, |
94 | u32 filter_mask) |
95 | { |
96 | struct net_bridge_vlan_group *vg = NULL; |
97 | struct net_bridge_port *p = NULL; |
98 | struct net_bridge *br = NULL; |
99 | u32 num_cfm_peer_mep_infos; |
100 | u32 num_cfm_mep_infos; |
101 | size_t vinfo_sz = 0; |
102 | int num_vlan_infos; |
103 | |
104 | rcu_read_lock(); |
105 | if (netif_is_bridge_port(dev)) { |
106 | p = br_port_get_check_rcu(dev); |
107 | if (p) |
108 | vg = nbp_vlan_group_rcu(p); |
109 | } else if (netif_is_bridge_master(dev)) { |
110 | br = netdev_priv(dev); |
111 | vg = br_vlan_group_rcu(br); |
112 | } |
113 | num_vlan_infos = br_get_num_vlan_infos(vg, filter_mask); |
114 | rcu_read_unlock(); |
115 | |
116 | if (p && (p->flags & BR_VLAN_TUNNEL)) |
117 | vinfo_sz += br_get_vlan_tunnel_info_size(vg); |
118 | |
119 | /* Each VLAN is returned in bridge_vlan_info along with flags */ |
120 | vinfo_sz += num_vlan_infos * nla_total_size(payload: sizeof(struct bridge_vlan_info)); |
121 | |
122 | if (p && vg && (filter_mask & RTEXT_FILTER_MST)) |
123 | vinfo_sz += br_mst_info_size(vg); |
124 | |
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, count: &num_cfm_mep_infos); |
133 | br_cfm_peer_mep_count(br, count: &num_cfm_peer_mep_infos); |
134 | |
135 | vinfo_sz += nla_total_size(payload: 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(payload: sizeof(u32)) |
141 | /* IFLA_BRIDGE_CFM_MEP_STATUS_OPCODE_UNEXP_SEEN */ |
142 | + nla_total_size(payload: sizeof(u32)) |
143 | /* IFLA_BRIDGE_CFM_MEP_STATUS_VERSION_UNEXP_SEEN */ |
144 | + nla_total_size(payload: sizeof(u32)) |
145 | /* IFLA_BRIDGE_CFM_MEP_STATUS_RX_LEVEL_LOW_SEEN */ |
146 | + nla_total_size(payload: 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(payload: sizeof(u32)) |
151 | /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_PEER_MEPID */ |
152 | + nla_total_size(payload: sizeof(u32)) |
153 | /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_CCM_DEFECT */ |
154 | + nla_total_size(payload: sizeof(u32)) |
155 | /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_RDI */ |
156 | + nla_total_size(payload: sizeof(u32)) |
157 | /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_PORT_TLV_VALUE */ |
158 | + nla_total_size(payload: sizeof(u8)) |
159 | /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_IF_TLV_VALUE */ |
160 | + nla_total_size(payload: sizeof(u8)) |
161 | /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEEN */ |
162 | + nla_total_size(payload: sizeof(u32)) |
163 | /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_TLV_SEEN */ |
164 | + nla_total_size(payload: sizeof(u32)) |
165 | /* IFLA_BRIDGE_CFM_CC_PEER_STATUS_SEQ_UNEXP_SEEN */ |
166 | + nla_total_size(payload: sizeof(u32))); |
167 | |
168 | return vinfo_sz; |
169 | } |
170 | |
171 | static inline size_t br_port_info_size(void) |
172 | { |
173 | return nla_total_size(payload: 1) /* IFLA_BRPORT_STATE */ |
174 | + nla_total_size(payload: 2) /* IFLA_BRPORT_PRIORITY */ |
175 | + nla_total_size(payload: 4) /* IFLA_BRPORT_COST */ |
176 | + nla_total_size(payload: 1) /* IFLA_BRPORT_MODE */ |
177 | + nla_total_size(payload: 1) /* IFLA_BRPORT_GUARD */ |
178 | + nla_total_size(payload: 1) /* IFLA_BRPORT_PROTECT */ |
179 | + nla_total_size(payload: 1) /* IFLA_BRPORT_FAST_LEAVE */ |
180 | + nla_total_size(payload: 1) /* IFLA_BRPORT_MCAST_TO_UCAST */ |
181 | + nla_total_size(payload: 1) /* IFLA_BRPORT_LEARNING */ |
182 | + nla_total_size(payload: 1) /* IFLA_BRPORT_UNICAST_FLOOD */ |
183 | + nla_total_size(payload: 1) /* IFLA_BRPORT_MCAST_FLOOD */ |
184 | + nla_total_size(payload: 1) /* IFLA_BRPORT_BCAST_FLOOD */ |
185 | + nla_total_size(payload: 1) /* IFLA_BRPORT_PROXYARP */ |
186 | + nla_total_size(payload: 1) /* IFLA_BRPORT_PROXYARP_WIFI */ |
187 | + nla_total_size(payload: 1) /* IFLA_BRPORT_VLAN_TUNNEL */ |
188 | + nla_total_size(payload: 1) /* IFLA_BRPORT_NEIGH_SUPPRESS */ |
189 | + nla_total_size(payload: 1) /* IFLA_BRPORT_ISOLATED */ |
190 | + nla_total_size(payload: 1) /* IFLA_BRPORT_LOCKED */ |
191 | + nla_total_size(payload: 1) /* IFLA_BRPORT_MAB */ |
192 | + nla_total_size(payload: 1) /* IFLA_BRPORT_NEIGH_VLAN_SUPPRESS */ |
193 | + nla_total_size(payload: sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */ |
194 | + nla_total_size(payload: sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */ |
195 | + nla_total_size(payload: sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */ |
196 | + nla_total_size(payload: sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */ |
197 | + nla_total_size(payload: sizeof(u16)) /* IFLA_BRPORT_ID */ |
198 | + nla_total_size(payload: sizeof(u16)) /* IFLA_BRPORT_NO */ |
199 | + nla_total_size(payload: sizeof(u8)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */ |
200 | + nla_total_size(payload: sizeof(u8)) /* IFLA_BRPORT_CONFIG_PENDING */ |
201 | + nla_total_size_64bit(payload: sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */ |
202 | + nla_total_size_64bit(payload: sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */ |
203 | + nla_total_size_64bit(payload: sizeof(u64)) /* IFLA_BRPORT_HOLD_TIMER */ |
204 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
205 | + nla_total_size(payload: sizeof(u8)) /* IFLA_BRPORT_MULTICAST_ROUTER */ |
206 | + nla_total_size(payload: sizeof(u32)) /* IFLA_BRPORT_MCAST_N_GROUPS */ |
207 | + nla_total_size(payload: sizeof(u32)) /* IFLA_BRPORT_MCAST_MAX_GROUPS */ |
208 | #endif |
209 | + nla_total_size(payload: sizeof(u16)) /* IFLA_BRPORT_GROUP_FWD_MASK */ |
210 | + nla_total_size(payload: sizeof(u8)) /* IFLA_BRPORT_MRP_RING_OPEN */ |
211 | + nla_total_size(payload: sizeof(u8)) /* IFLA_BRPORT_MRP_IN_OPEN */ |
212 | + nla_total_size(payload: sizeof(u32)) /* IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT */ |
213 | + nla_total_size(payload: sizeof(u32)) /* IFLA_BRPORT_MCAST_EHT_HOSTS_CNT */ |
214 | + nla_total_size(payload: sizeof(u32)) /* IFLA_BRPORT_BACKUP_NHID */ |
215 | + 0; |
216 | } |
217 | |
218 | static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask) |
219 | { |
220 | return NLMSG_ALIGN(sizeof(struct ifinfomsg)) |
221 | + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */ |
222 | + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */ |
223 | + nla_total_size(payload: 4) /* IFLA_MASTER */ |
224 | + nla_total_size(payload: 4) /* IFLA_MTU */ |
225 | + nla_total_size(payload: 4) /* IFLA_LINK */ |
226 | + nla_total_size(payload: 1) /* IFLA_OPERSTATE */ |
227 | + nla_total_size(payload: br_port_info_size()) /* IFLA_PROTINFO */ |
228 | + nla_total_size(payload: br_get_link_af_size_filtered(dev, |
229 | filter_mask)) /* IFLA_AF_SPEC */ |
230 | + nla_total_size(payload: 4); /* IFLA_BRPORT_BACKUP_PORT */ |
231 | } |
232 | |
233 | static int br_port_fill_attrs(struct sk_buff *skb, |
234 | const struct net_bridge_port *p) |
235 | { |
236 | u8 mode = !!(p->flags & BR_HAIRPIN_MODE); |
237 | struct net_bridge_port *backup_p; |
238 | u64 timerval; |
239 | |
240 | if (nla_put_u8(skb, attrtype: IFLA_BRPORT_STATE, value: p->state) || |
241 | nla_put_u16(skb, attrtype: IFLA_BRPORT_PRIORITY, value: p->priority) || |
242 | nla_put_u32(skb, attrtype: IFLA_BRPORT_COST, value: p->path_cost) || |
243 | nla_put_u8(skb, attrtype: IFLA_BRPORT_MODE, value: mode) || |
244 | nla_put_u8(skb, attrtype: IFLA_BRPORT_GUARD, value: !!(p->flags & BR_BPDU_GUARD)) || |
245 | nla_put_u8(skb, attrtype: IFLA_BRPORT_PROTECT, |
246 | value: !!(p->flags & BR_ROOT_BLOCK)) || |
247 | nla_put_u8(skb, attrtype: IFLA_BRPORT_FAST_LEAVE, |
248 | value: !!(p->flags & BR_MULTICAST_FAST_LEAVE)) || |
249 | nla_put_u8(skb, attrtype: IFLA_BRPORT_MCAST_TO_UCAST, |
250 | value: !!(p->flags & BR_MULTICAST_TO_UNICAST)) || |
251 | nla_put_u8(skb, attrtype: IFLA_BRPORT_LEARNING, value: !!(p->flags & BR_LEARNING)) || |
252 | nla_put_u8(skb, attrtype: IFLA_BRPORT_UNICAST_FLOOD, |
253 | value: !!(p->flags & BR_FLOOD)) || |
254 | nla_put_u8(skb, attrtype: IFLA_BRPORT_MCAST_FLOOD, |
255 | value: !!(p->flags & BR_MCAST_FLOOD)) || |
256 | nla_put_u8(skb, attrtype: IFLA_BRPORT_BCAST_FLOOD, |
257 | value: !!(p->flags & BR_BCAST_FLOOD)) || |
258 | nla_put_u8(skb, attrtype: IFLA_BRPORT_PROXYARP, value: !!(p->flags & BR_PROXYARP)) || |
259 | nla_put_u8(skb, attrtype: IFLA_BRPORT_PROXYARP_WIFI, |
260 | value: !!(p->flags & BR_PROXYARP_WIFI)) || |
261 | nla_put(skb, attrtype: IFLA_BRPORT_ROOT_ID, attrlen: sizeof(struct ifla_bridge_id), |
262 | data: &p->designated_root) || |
263 | nla_put(skb, attrtype: IFLA_BRPORT_BRIDGE_ID, attrlen: sizeof(struct ifla_bridge_id), |
264 | data: &p->designated_bridge) || |
265 | nla_put_u16(skb, attrtype: IFLA_BRPORT_DESIGNATED_PORT, value: p->designated_port) || |
266 | nla_put_u16(skb, attrtype: IFLA_BRPORT_DESIGNATED_COST, value: p->designated_cost) || |
267 | nla_put_u16(skb, attrtype: IFLA_BRPORT_ID, value: p->port_id) || |
268 | nla_put_u16(skb, attrtype: IFLA_BRPORT_NO, value: p->port_no) || |
269 | nla_put_u8(skb, attrtype: IFLA_BRPORT_TOPOLOGY_CHANGE_ACK, |
270 | value: p->topology_change_ack) || |
271 | nla_put_u8(skb, attrtype: IFLA_BRPORT_CONFIG_PENDING, value: p->config_pending) || |
272 | nla_put_u8(skb, attrtype: IFLA_BRPORT_VLAN_TUNNEL, value: !!(p->flags & |
273 | BR_VLAN_TUNNEL)) || |
274 | nla_put_u16(skb, attrtype: IFLA_BRPORT_GROUP_FWD_MASK, value: p->group_fwd_mask) || |
275 | nla_put_u8(skb, attrtype: IFLA_BRPORT_NEIGH_SUPPRESS, |
276 | value: !!(p->flags & BR_NEIGH_SUPPRESS)) || |
277 | nla_put_u8(skb, attrtype: IFLA_BRPORT_MRP_RING_OPEN, value: !!(p->flags & |
278 | BR_MRP_LOST_CONT)) || |
279 | nla_put_u8(skb, attrtype: IFLA_BRPORT_MRP_IN_OPEN, |
280 | value: !!(p->flags & BR_MRP_LOST_IN_CONT)) || |
281 | nla_put_u8(skb, attrtype: IFLA_BRPORT_ISOLATED, value: !!(p->flags & BR_ISOLATED)) || |
282 | nla_put_u8(skb, attrtype: IFLA_BRPORT_LOCKED, value: !!(p->flags & BR_PORT_LOCKED)) || |
283 | nla_put_u8(skb, attrtype: IFLA_BRPORT_MAB, value: !!(p->flags & BR_PORT_MAB)) || |
284 | nla_put_u8(skb, attrtype: IFLA_BRPORT_NEIGH_VLAN_SUPPRESS, |
285 | value: !!(p->flags & BR_NEIGH_VLAN_SUPPRESS))) |
286 | return -EMSGSIZE; |
287 | |
288 | timerval = br_timer_value(timer: &p->message_age_timer); |
289 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BRPORT_MESSAGE_AGE_TIMER, value: timerval, |
290 | padattr: IFLA_BRPORT_PAD)) |
291 | return -EMSGSIZE; |
292 | timerval = br_timer_value(timer: &p->forward_delay_timer); |
293 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BRPORT_FORWARD_DELAY_TIMER, value: timerval, |
294 | padattr: IFLA_BRPORT_PAD)) |
295 | return -EMSGSIZE; |
296 | timerval = br_timer_value(timer: &p->hold_timer); |
297 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BRPORT_HOLD_TIMER, value: timerval, |
298 | padattr: IFLA_BRPORT_PAD)) |
299 | return -EMSGSIZE; |
300 | |
301 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
302 | if (nla_put_u8(skb, attrtype: IFLA_BRPORT_MULTICAST_ROUTER, |
303 | value: p->multicast_ctx.multicast_router) || |
304 | nla_put_u32(skb, attrtype: IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT, |
305 | value: p->multicast_eht_hosts_limit) || |
306 | nla_put_u32(skb, attrtype: IFLA_BRPORT_MCAST_EHT_HOSTS_CNT, |
307 | value: p->multicast_eht_hosts_cnt) || |
308 | nla_put_u32(skb, attrtype: IFLA_BRPORT_MCAST_N_GROUPS, |
309 | value: br_multicast_ngroups_get(pmctx: &p->multicast_ctx)) || |
310 | nla_put_u32(skb, attrtype: IFLA_BRPORT_MCAST_MAX_GROUPS, |
311 | value: br_multicast_ngroups_get_max(pmctx: &p->multicast_ctx))) |
312 | return -EMSGSIZE; |
313 | #endif |
314 | |
315 | /* we might be called only with br->lock */ |
316 | rcu_read_lock(); |
317 | backup_p = rcu_dereference(p->backup_port); |
318 | if (backup_p) |
319 | nla_put_u32(skb, attrtype: IFLA_BRPORT_BACKUP_PORT, |
320 | value: backup_p->dev->ifindex); |
321 | rcu_read_unlock(); |
322 | |
323 | if (p->backup_nhid && |
324 | nla_put_u32(skb, attrtype: IFLA_BRPORT_BACKUP_NHID, value: p->backup_nhid)) |
325 | return -EMSGSIZE; |
326 | |
327 | return 0; |
328 | } |
329 | |
330 | static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start, |
331 | u16 vid_end, u16 flags) |
332 | { |
333 | struct bridge_vlan_info vinfo; |
334 | |
335 | if ((vid_end - vid_start) > 0) { |
336 | /* add range to skb */ |
337 | vinfo.vid = vid_start; |
338 | vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN; |
339 | if (nla_put(skb, attrtype: IFLA_BRIDGE_VLAN_INFO, |
340 | attrlen: sizeof(vinfo), data: &vinfo)) |
341 | goto nla_put_failure; |
342 | |
343 | vinfo.vid = vid_end; |
344 | vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END; |
345 | if (nla_put(skb, attrtype: IFLA_BRIDGE_VLAN_INFO, |
346 | attrlen: sizeof(vinfo), data: &vinfo)) |
347 | goto nla_put_failure; |
348 | } else { |
349 | vinfo.vid = vid_start; |
350 | vinfo.flags = flags; |
351 | if (nla_put(skb, attrtype: IFLA_BRIDGE_VLAN_INFO, |
352 | attrlen: sizeof(vinfo), data: &vinfo)) |
353 | goto nla_put_failure; |
354 | } |
355 | |
356 | return 0; |
357 | |
358 | nla_put_failure: |
359 | return -EMSGSIZE; |
360 | } |
361 | |
362 | static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb, |
363 | struct net_bridge_vlan_group *vg) |
364 | { |
365 | struct net_bridge_vlan *v; |
366 | u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0; |
367 | u16 flags, pvid; |
368 | int err = 0; |
369 | |
370 | /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan |
371 | * and mark vlan info with begin and end flags |
372 | * if vlaninfo represents a range |
373 | */ |
374 | pvid = br_get_pvid(vg); |
375 | list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { |
376 | flags = 0; |
377 | if (!br_vlan_should_use(v)) |
378 | continue; |
379 | if (v->vid == pvid) |
380 | flags |= BRIDGE_VLAN_INFO_PVID; |
381 | |
382 | if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED) |
383 | flags |= BRIDGE_VLAN_INFO_UNTAGGED; |
384 | |
385 | if (vid_range_start == 0) { |
386 | goto initvars; |
387 | } else if ((v->vid - vid_range_end) == 1 && |
388 | flags == vid_range_flags) { |
389 | vid_range_end = v->vid; |
390 | continue; |
391 | } else { |
392 | err = br_fill_ifvlaninfo_range(skb, vid_start: vid_range_start, |
393 | vid_end: vid_range_end, |
394 | flags: vid_range_flags); |
395 | if (err) |
396 | return err; |
397 | } |
398 | |
399 | initvars: |
400 | vid_range_start = v->vid; |
401 | vid_range_end = v->vid; |
402 | vid_range_flags = flags; |
403 | } |
404 | |
405 | if (vid_range_start != 0) { |
406 | /* Call it once more to send any left over vlans */ |
407 | err = br_fill_ifvlaninfo_range(skb, vid_start: vid_range_start, |
408 | vid_end: vid_range_end, |
409 | flags: vid_range_flags); |
410 | if (err) |
411 | return err; |
412 | } |
413 | |
414 | return 0; |
415 | } |
416 | |
417 | static int br_fill_ifvlaninfo(struct sk_buff *skb, |
418 | struct net_bridge_vlan_group *vg) |
419 | { |
420 | struct bridge_vlan_info vinfo; |
421 | struct net_bridge_vlan *v; |
422 | u16 pvid; |
423 | |
424 | pvid = br_get_pvid(vg); |
425 | list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { |
426 | if (!br_vlan_should_use(v)) |
427 | continue; |
428 | |
429 | vinfo.vid = v->vid; |
430 | vinfo.flags = 0; |
431 | if (v->vid == pvid) |
432 | vinfo.flags |= BRIDGE_VLAN_INFO_PVID; |
433 | |
434 | if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED) |
435 | vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED; |
436 | |
437 | if (nla_put(skb, attrtype: IFLA_BRIDGE_VLAN_INFO, |
438 | attrlen: sizeof(vinfo), data: &vinfo)) |
439 | goto nla_put_failure; |
440 | } |
441 | |
442 | return 0; |
443 | |
444 | nla_put_failure: |
445 | return -EMSGSIZE; |
446 | } |
447 | |
448 | /* |
449 | * Create one netlink message for one interface |
450 | * Contains port and master info as well as carrier and bridge state. |
451 | */ |
452 | static int br_fill_ifinfo(struct sk_buff *skb, |
453 | const struct net_bridge_port *port, |
454 | u32 pid, u32 seq, int event, unsigned int flags, |
455 | u32 filter_mask, const struct net_device *dev, |
456 | bool getlink) |
457 | { |
458 | u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN; |
459 | struct nlattr *af = NULL; |
460 | struct net_bridge *br; |
461 | struct ifinfomsg *hdr; |
462 | struct nlmsghdr *nlh; |
463 | |
464 | if (port) |
465 | br = port->br; |
466 | else |
467 | br = netdev_priv(dev); |
468 | |
469 | br_debug(br, "br_fill_info event %d port %s master %s\n" , |
470 | event, dev->name, br->dev->name); |
471 | |
472 | nlh = nlmsg_put(skb, portid: pid, seq, type: event, payload: sizeof(*hdr), flags); |
473 | if (nlh == NULL) |
474 | return -EMSGSIZE; |
475 | |
476 | hdr = nlmsg_data(nlh); |
477 | hdr->ifi_family = AF_BRIDGE; |
478 | hdr->__ifi_pad = 0; |
479 | hdr->ifi_type = dev->type; |
480 | hdr->ifi_index = dev->ifindex; |
481 | hdr->ifi_flags = dev_get_flags(dev); |
482 | hdr->ifi_change = 0; |
483 | |
484 | if (nla_put_string(skb, attrtype: IFLA_IFNAME, str: dev->name) || |
485 | nla_put_u32(skb, IFLA_MASTER, value: br->dev->ifindex) || |
486 | nla_put_u32(skb, attrtype: IFLA_MTU, value: dev->mtu) || |
487 | nla_put_u8(skb, attrtype: IFLA_OPERSTATE, value: operstate) || |
488 | (dev->addr_len && |
489 | nla_put(skb, attrtype: IFLA_ADDRESS, attrlen: dev->addr_len, data: dev->dev_addr)) || |
490 | (dev->ifindex != dev_get_iflink(dev) && |
491 | nla_put_u32(skb, attrtype: IFLA_LINK, value: dev_get_iflink(dev)))) |
492 | goto nla_put_failure; |
493 | |
494 | if (event == RTM_NEWLINK && port) { |
495 | struct nlattr *nest; |
496 | |
497 | nest = nla_nest_start(skb, IFLA_PROTINFO); |
498 | if (nest == NULL || br_port_fill_attrs(skb, p: port) < 0) |
499 | goto nla_put_failure; |
500 | nla_nest_end(skb, start: nest); |
501 | } |
502 | |
503 | if (filter_mask & (RTEXT_FILTER_BRVLAN | |
504 | RTEXT_FILTER_BRVLAN_COMPRESSED | |
505 | RTEXT_FILTER_MRP | |
506 | RTEXT_FILTER_CFM_CONFIG | |
507 | RTEXT_FILTER_CFM_STATUS | |
508 | RTEXT_FILTER_MST)) { |
509 | af = nla_nest_start_noflag(skb, attrtype: IFLA_AF_SPEC); |
510 | if (!af) |
511 | goto nla_put_failure; |
512 | } |
513 | |
514 | /* Check if the VID information is requested */ |
515 | if ((filter_mask & RTEXT_FILTER_BRVLAN) || |
516 | (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) { |
517 | struct net_bridge_vlan_group *vg; |
518 | int err; |
519 | |
520 | /* RCU needed because of the VLAN locking rules (rcu || rtnl) */ |
521 | rcu_read_lock(); |
522 | if (port) |
523 | vg = nbp_vlan_group_rcu(p: port); |
524 | else |
525 | vg = br_vlan_group_rcu(br); |
526 | |
527 | if (!vg || !vg->num_vlans) { |
528 | rcu_read_unlock(); |
529 | goto done; |
530 | } |
531 | if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED) |
532 | err = br_fill_ifvlaninfo_compressed(skb, vg); |
533 | else |
534 | err = br_fill_ifvlaninfo(skb, vg); |
535 | |
536 | if (port && (port->flags & BR_VLAN_TUNNEL)) |
537 | err = br_fill_vlan_tunnel_info(skb, vg); |
538 | rcu_read_unlock(); |
539 | if (err) |
540 | goto nla_put_failure; |
541 | } |
542 | |
543 | if (filter_mask & RTEXT_FILTER_MRP) { |
544 | int err; |
545 | |
546 | if (!br_mrp_enabled(br) || port) |
547 | goto done; |
548 | |
549 | rcu_read_lock(); |
550 | err = br_mrp_fill_info(skb, br); |
551 | rcu_read_unlock(); |
552 | |
553 | if (err) |
554 | goto nla_put_failure; |
555 | } |
556 | |
557 | if (filter_mask & (RTEXT_FILTER_CFM_CONFIG | RTEXT_FILTER_CFM_STATUS)) { |
558 | struct nlattr *cfm_nest = NULL; |
559 | int err; |
560 | |
561 | if (!br_cfm_created(br) || port) |
562 | goto done; |
563 | |
564 | cfm_nest = nla_nest_start(skb, attrtype: IFLA_BRIDGE_CFM); |
565 | if (!cfm_nest) |
566 | goto nla_put_failure; |
567 | |
568 | if (filter_mask & RTEXT_FILTER_CFM_CONFIG) { |
569 | rcu_read_lock(); |
570 | err = br_cfm_config_fill_info(skb, br); |
571 | rcu_read_unlock(); |
572 | if (err) |
573 | goto nla_put_failure; |
574 | } |
575 | |
576 | if (filter_mask & RTEXT_FILTER_CFM_STATUS) { |
577 | rcu_read_lock(); |
578 | err = br_cfm_status_fill_info(skb, br, getlink); |
579 | rcu_read_unlock(); |
580 | if (err) |
581 | goto nla_put_failure; |
582 | } |
583 | |
584 | nla_nest_end(skb, start: cfm_nest); |
585 | } |
586 | |
587 | if ((filter_mask & RTEXT_FILTER_MST) && |
588 | br_opt_get(br, opt: BROPT_MST_ENABLED) && port) { |
589 | const struct net_bridge_vlan_group *vg = nbp_vlan_group(p: port); |
590 | struct nlattr *mst_nest; |
591 | int err; |
592 | |
593 | if (!vg || !vg->num_vlans) |
594 | goto done; |
595 | |
596 | mst_nest = nla_nest_start(skb, attrtype: IFLA_BRIDGE_MST); |
597 | if (!mst_nest) |
598 | goto nla_put_failure; |
599 | |
600 | err = br_mst_fill_info(skb, vg); |
601 | if (err) |
602 | goto nla_put_failure; |
603 | |
604 | nla_nest_end(skb, start: mst_nest); |
605 | } |
606 | |
607 | done: |
608 | if (af) { |
609 | if (nlmsg_get_pos(skb) - (void *)af > nla_attr_size(payload: 0)) |
610 | nla_nest_end(skb, start: af); |
611 | else |
612 | nla_nest_cancel(skb, start: af); |
613 | } |
614 | |
615 | nlmsg_end(skb, nlh); |
616 | return 0; |
617 | |
618 | nla_put_failure: |
619 | nlmsg_cancel(skb, nlh); |
620 | return -EMSGSIZE; |
621 | } |
622 | |
623 | void br_info_notify(int event, const struct net_bridge *br, |
624 | const struct net_bridge_port *port, u32 filter) |
625 | { |
626 | struct net_device *dev; |
627 | struct sk_buff *skb; |
628 | int err = -ENOBUFS; |
629 | struct net *net; |
630 | u16 port_no = 0; |
631 | |
632 | if (WARN_ON(!port && !br)) |
633 | return; |
634 | |
635 | if (port) { |
636 | dev = port->dev; |
637 | br = port->br; |
638 | port_no = port->port_no; |
639 | } else { |
640 | dev = br->dev; |
641 | } |
642 | |
643 | net = dev_net(dev); |
644 | br_debug(br, "port %u(%s) event %d\n" , port_no, dev->name, event); |
645 | |
646 | skb = nlmsg_new(payload: br_nlmsg_size(dev, filter_mask: filter), GFP_ATOMIC); |
647 | if (skb == NULL) |
648 | goto errout; |
649 | |
650 | err = br_fill_ifinfo(skb, port, pid: 0, seq: 0, event, flags: 0, filter_mask: filter, dev, getlink: false); |
651 | if (err < 0) { |
652 | /* -EMSGSIZE implies BUG in br_nlmsg_size() */ |
653 | WARN_ON(err == -EMSGSIZE); |
654 | kfree_skb(skb); |
655 | goto errout; |
656 | } |
657 | rtnl_notify(skb, net, pid: 0, RTNLGRP_LINK, NULL, GFP_ATOMIC); |
658 | return; |
659 | errout: |
660 | rtnl_set_sk_err(net, RTNLGRP_LINK, error: err); |
661 | } |
662 | |
663 | /* Notify listeners of a change in bridge or port information */ |
664 | void br_ifinfo_notify(int event, const struct net_bridge *br, |
665 | const struct net_bridge_port *port) |
666 | { |
667 | u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED; |
668 | |
669 | return br_info_notify(event, br, port, filter); |
670 | } |
671 | |
672 | /* |
673 | * Dump information about all ports, in response to GETLINK |
674 | */ |
675 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
676 | struct net_device *dev, u32 filter_mask, int nlflags) |
677 | { |
678 | struct net_bridge_port *port = br_port_get_rtnl(dev); |
679 | |
680 | if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) && |
681 | !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED) && |
682 | !(filter_mask & RTEXT_FILTER_MRP) && |
683 | !(filter_mask & RTEXT_FILTER_CFM_CONFIG) && |
684 | !(filter_mask & RTEXT_FILTER_CFM_STATUS)) |
685 | return 0; |
686 | |
687 | return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, flags: nlflags, |
688 | filter_mask, dev, getlink: true); |
689 | } |
690 | |
691 | static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p, |
692 | int cmd, struct bridge_vlan_info *vinfo, bool *changed, |
693 | struct netlink_ext_ack *extack) |
694 | { |
695 | bool curr_change; |
696 | int err = 0; |
697 | |
698 | switch (cmd) { |
699 | case RTM_SETLINK: |
700 | if (p) { |
701 | /* if the MASTER flag is set this will act on the global |
702 | * per-VLAN entry as well |
703 | */ |
704 | err = nbp_vlan_add(port: p, vid: vinfo->vid, flags: vinfo->flags, |
705 | changed: &curr_change, extack); |
706 | } else { |
707 | vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY; |
708 | err = br_vlan_add(br, vid: vinfo->vid, flags: vinfo->flags, |
709 | changed: &curr_change, extack); |
710 | } |
711 | if (curr_change) |
712 | *changed = true; |
713 | break; |
714 | |
715 | case RTM_DELLINK: |
716 | if (p) { |
717 | if (!nbp_vlan_delete(port: p, vid: vinfo->vid)) |
718 | *changed = true; |
719 | |
720 | if ((vinfo->flags & BRIDGE_VLAN_INFO_MASTER) && |
721 | !br_vlan_delete(br: p->br, vid: vinfo->vid)) |
722 | *changed = true; |
723 | } else if (!br_vlan_delete(br, vid: vinfo->vid)) { |
724 | *changed = true; |
725 | } |
726 | break; |
727 | } |
728 | |
729 | return err; |
730 | } |
731 | |
732 | int br_process_vlan_info(struct net_bridge *br, |
733 | struct net_bridge_port *p, int cmd, |
734 | struct bridge_vlan_info *vinfo_curr, |
735 | struct bridge_vlan_info **vinfo_last, |
736 | bool *changed, |
737 | struct netlink_ext_ack *extack) |
738 | { |
739 | int err, rtm_cmd; |
740 | |
741 | if (!br_vlan_valid_id(vid: vinfo_curr->vid, extack)) |
742 | return -EINVAL; |
743 | |
744 | /* needed for vlan-only NEWVLAN/DELVLAN notifications */ |
745 | rtm_cmd = br_afspec_cmd_to_rtm(cmd); |
746 | |
747 | if (vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { |
748 | if (!br_vlan_valid_range(cur: vinfo_curr, last: *vinfo_last, extack)) |
749 | return -EINVAL; |
750 | *vinfo_last = vinfo_curr; |
751 | return 0; |
752 | } |
753 | |
754 | if (*vinfo_last) { |
755 | struct bridge_vlan_info tmp_vinfo; |
756 | int v, v_change_start = 0; |
757 | |
758 | if (!br_vlan_valid_range(cur: vinfo_curr, last: *vinfo_last, extack)) |
759 | return -EINVAL; |
760 | |
761 | memcpy(&tmp_vinfo, *vinfo_last, |
762 | sizeof(struct bridge_vlan_info)); |
763 | for (v = (*vinfo_last)->vid; v <= vinfo_curr->vid; v++) { |
764 | bool curr_change = false; |
765 | |
766 | tmp_vinfo.vid = v; |
767 | err = br_vlan_info(br, p, cmd, vinfo: &tmp_vinfo, changed: &curr_change, |
768 | extack); |
769 | if (err) |
770 | break; |
771 | if (curr_change) { |
772 | *changed = curr_change; |
773 | if (!v_change_start) |
774 | v_change_start = v; |
775 | } else { |
776 | /* nothing to notify yet */ |
777 | if (!v_change_start) |
778 | continue; |
779 | br_vlan_notify(br, p, vid: v_change_start, |
780 | vid_range: v - 1, cmd: rtm_cmd); |
781 | v_change_start = 0; |
782 | } |
783 | cond_resched(); |
784 | } |
785 | /* v_change_start is set only if the last/whole range changed */ |
786 | if (v_change_start) |
787 | br_vlan_notify(br, p, vid: v_change_start, |
788 | vid_range: v - 1, cmd: rtm_cmd); |
789 | |
790 | *vinfo_last = NULL; |
791 | |
792 | return err; |
793 | } |
794 | |
795 | err = br_vlan_info(br, p, cmd, vinfo: vinfo_curr, changed, extack); |
796 | if (*changed) |
797 | br_vlan_notify(br, p, vid: vinfo_curr->vid, vid_range: 0, cmd: rtm_cmd); |
798 | |
799 | return err; |
800 | } |
801 | |
802 | static int br_afspec(struct net_bridge *br, |
803 | struct net_bridge_port *p, |
804 | struct nlattr *af_spec, |
805 | int cmd, bool *changed, |
806 | struct netlink_ext_ack *extack) |
807 | { |
808 | struct bridge_vlan_info *vinfo_curr = NULL; |
809 | struct bridge_vlan_info *vinfo_last = NULL; |
810 | struct nlattr *attr; |
811 | struct vtunnel_info tinfo_last = {}; |
812 | struct vtunnel_info tinfo_curr = {}; |
813 | int err = 0, rem; |
814 | |
815 | nla_for_each_nested(attr, af_spec, rem) { |
816 | err = 0; |
817 | switch (nla_type(nla: attr)) { |
818 | case IFLA_BRIDGE_VLAN_TUNNEL_INFO: |
819 | if (!p || !(p->flags & BR_VLAN_TUNNEL)) |
820 | return -EINVAL; |
821 | err = br_parse_vlan_tunnel_info(attr, tinfo: &tinfo_curr); |
822 | if (err) |
823 | return err; |
824 | err = br_process_vlan_tunnel_info(br, p, cmd, |
825 | tinfo_curr: &tinfo_curr, |
826 | tinfo_last: &tinfo_last, |
827 | changed); |
828 | if (err) |
829 | return err; |
830 | break; |
831 | case IFLA_BRIDGE_VLAN_INFO: |
832 | if (nla_len(nla: attr) != sizeof(struct bridge_vlan_info)) |
833 | return -EINVAL; |
834 | vinfo_curr = nla_data(nla: attr); |
835 | err = br_process_vlan_info(br, p, cmd, vinfo_curr, |
836 | vinfo_last: &vinfo_last, changed, |
837 | extack); |
838 | if (err) |
839 | return err; |
840 | break; |
841 | case IFLA_BRIDGE_MRP: |
842 | err = br_mrp_parse(br, p, attr, cmd, extack); |
843 | if (err) |
844 | return err; |
845 | break; |
846 | case IFLA_BRIDGE_CFM: |
847 | err = br_cfm_parse(br, p, attr, cmd, extack); |
848 | if (err) |
849 | return err; |
850 | break; |
851 | case IFLA_BRIDGE_MST: |
852 | if (!p) { |
853 | NL_SET_ERR_MSG(extack, |
854 | "MST states can only be set on bridge ports" ); |
855 | return -EINVAL; |
856 | } |
857 | |
858 | if (cmd != RTM_SETLINK) { |
859 | NL_SET_ERR_MSG(extack, |
860 | "MST states can only be set through RTM_SETLINK" ); |
861 | return -EINVAL; |
862 | } |
863 | |
864 | err = br_mst_process(p, mst_attr: attr, extack); |
865 | if (err) |
866 | return err; |
867 | break; |
868 | } |
869 | } |
870 | |
871 | return err; |
872 | } |
873 | |
874 | static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = { |
875 | [IFLA_BRPORT_UNSPEC] = { .strict_start_type = |
876 | IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT + 1 }, |
877 | [IFLA_BRPORT_STATE] = { .type = NLA_U8 }, |
878 | [IFLA_BRPORT_COST] = { .type = NLA_U32 }, |
879 | [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 }, |
880 | [IFLA_BRPORT_MODE] = { .type = NLA_U8 }, |
881 | [IFLA_BRPORT_GUARD] = { .type = NLA_U8 }, |
882 | [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 }, |
883 | [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 }, |
884 | [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 }, |
885 | [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 }, |
886 | [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 }, |
887 | [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 }, |
888 | [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 }, |
889 | [IFLA_BRPORT_MCAST_TO_UCAST] = { .type = NLA_U8 }, |
890 | [IFLA_BRPORT_MCAST_FLOOD] = { .type = NLA_U8 }, |
891 | [IFLA_BRPORT_BCAST_FLOOD] = { .type = NLA_U8 }, |
892 | [IFLA_BRPORT_VLAN_TUNNEL] = { .type = NLA_U8 }, |
893 | [IFLA_BRPORT_GROUP_FWD_MASK] = { .type = NLA_U16 }, |
894 | [IFLA_BRPORT_NEIGH_SUPPRESS] = { .type = NLA_U8 }, |
895 | [IFLA_BRPORT_ISOLATED] = { .type = NLA_U8 }, |
896 | [IFLA_BRPORT_LOCKED] = { .type = NLA_U8 }, |
897 | [IFLA_BRPORT_MAB] = { .type = NLA_U8 }, |
898 | [IFLA_BRPORT_BACKUP_PORT] = { .type = NLA_U32 }, |
899 | [IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT] = { .type = NLA_U32 }, |
900 | [IFLA_BRPORT_MCAST_N_GROUPS] = { .type = NLA_REJECT }, |
901 | [IFLA_BRPORT_MCAST_MAX_GROUPS] = { .type = NLA_U32 }, |
902 | [IFLA_BRPORT_NEIGH_VLAN_SUPPRESS] = NLA_POLICY_MAX(NLA_U8, 1), |
903 | [IFLA_BRPORT_BACKUP_NHID] = { .type = NLA_U32 }, |
904 | }; |
905 | |
906 | /* Change the state of the port and notify spanning tree */ |
907 | static int br_set_port_state(struct net_bridge_port *p, u8 state) |
908 | { |
909 | if (state > BR_STATE_BLOCKING) |
910 | return -EINVAL; |
911 | |
912 | /* if kernel STP is running, don't allow changes */ |
913 | if (p->br->stp_enabled == BR_KERNEL_STP) |
914 | return -EBUSY; |
915 | |
916 | /* if device is not up, change is not allowed |
917 | * if link is not present, only allowable state is disabled |
918 | */ |
919 | if (!netif_running(dev: p->dev) || |
920 | (!netif_oper_up(dev: p->dev) && state != BR_STATE_DISABLED)) |
921 | return -ENETDOWN; |
922 | |
923 | br_set_state(p, state); |
924 | br_port_state_selection(p->br); |
925 | return 0; |
926 | } |
927 | |
928 | /* Set/clear or port flags based on attribute */ |
929 | static void br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[], |
930 | int attrtype, unsigned long mask) |
931 | { |
932 | if (!tb[attrtype]) |
933 | return; |
934 | |
935 | if (nla_get_u8(nla: tb[attrtype])) |
936 | p->flags |= mask; |
937 | else |
938 | p->flags &= ~mask; |
939 | } |
940 | |
941 | /* Process bridge protocol info on port */ |
942 | static int br_setport(struct net_bridge_port *p, struct nlattr *tb[], |
943 | struct netlink_ext_ack *extack) |
944 | { |
945 | unsigned long old_flags, changed_mask; |
946 | bool br_vlan_tunnel_old; |
947 | int err; |
948 | |
949 | old_flags = p->flags; |
950 | br_vlan_tunnel_old = (old_flags & BR_VLAN_TUNNEL) ? true : false; |
951 | |
952 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_MODE, BR_HAIRPIN_MODE); |
953 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_GUARD, BR_BPDU_GUARD); |
954 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_FAST_LEAVE, |
955 | BR_MULTICAST_FAST_LEAVE); |
956 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK); |
957 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_LEARNING, BR_LEARNING); |
958 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD); |
959 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD); |
960 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_MCAST_TO_UCAST, |
961 | BR_MULTICAST_TO_UNICAST); |
962 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD); |
963 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_PROXYARP, BR_PROXYARP); |
964 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI); |
965 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL); |
966 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_NEIGH_SUPPRESS, BR_NEIGH_SUPPRESS); |
967 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_ISOLATED, BR_ISOLATED); |
968 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_LOCKED, BR_PORT_LOCKED); |
969 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_MAB, BR_PORT_MAB); |
970 | br_set_port_flag(p, tb, attrtype: IFLA_BRPORT_NEIGH_VLAN_SUPPRESS, |
971 | BR_NEIGH_VLAN_SUPPRESS); |
972 | |
973 | if ((p->flags & BR_PORT_MAB) && |
974 | (!(p->flags & BR_PORT_LOCKED) || !(p->flags & BR_LEARNING))) { |
975 | NL_SET_ERR_MSG(extack, "Bridge port must be locked and have learning enabled when MAB is enabled" ); |
976 | p->flags = old_flags; |
977 | return -EINVAL; |
978 | } else if (!(p->flags & BR_PORT_MAB) && (old_flags & BR_PORT_MAB)) { |
979 | struct net_bridge_fdb_flush_desc desc = { |
980 | .flags = BIT(BR_FDB_LOCKED), |
981 | .flags_mask = BIT(BR_FDB_LOCKED), |
982 | .port_ifindex = p->dev->ifindex, |
983 | }; |
984 | |
985 | br_fdb_flush(br: p->br, desc: &desc); |
986 | } |
987 | |
988 | changed_mask = old_flags ^ p->flags; |
989 | |
990 | err = br_switchdev_set_port_flag(p, flags: p->flags, mask: changed_mask, extack); |
991 | if (err) { |
992 | p->flags = old_flags; |
993 | return err; |
994 | } |
995 | |
996 | if (br_vlan_tunnel_old && !(p->flags & BR_VLAN_TUNNEL)) |
997 | nbp_vlan_tunnel_info_flush(port: p); |
998 | |
999 | br_port_flags_change(port: p, mask: changed_mask); |
1000 | |
1001 | if (tb[IFLA_BRPORT_COST]) { |
1002 | err = br_stp_set_path_cost(p, path_cost: nla_get_u32(nla: tb[IFLA_BRPORT_COST])); |
1003 | if (err) |
1004 | return err; |
1005 | } |
1006 | |
1007 | if (tb[IFLA_BRPORT_PRIORITY]) { |
1008 | err = br_stp_set_port_priority(p, newprio: nla_get_u16(nla: tb[IFLA_BRPORT_PRIORITY])); |
1009 | if (err) |
1010 | return err; |
1011 | } |
1012 | |
1013 | if (tb[IFLA_BRPORT_STATE]) { |
1014 | err = br_set_port_state(p, state: nla_get_u8(nla: tb[IFLA_BRPORT_STATE])); |
1015 | if (err) |
1016 | return err; |
1017 | } |
1018 | |
1019 | if (tb[IFLA_BRPORT_FLUSH]) |
1020 | br_fdb_delete_by_port(br: p->br, p, vid: 0, do_all: 0); |
1021 | |
1022 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
1023 | if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) { |
1024 | u8 mcast_router = nla_get_u8(nla: tb[IFLA_BRPORT_MULTICAST_ROUTER]); |
1025 | |
1026 | err = br_multicast_set_port_router(pmctx: &p->multicast_ctx, |
1027 | val: mcast_router); |
1028 | if (err) |
1029 | return err; |
1030 | } |
1031 | |
1032 | if (tb[IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT]) { |
1033 | u32 hlimit; |
1034 | |
1035 | hlimit = nla_get_u32(nla: tb[IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT]); |
1036 | err = br_multicast_eht_set_hosts_limit(p, eht_hosts_limit: hlimit); |
1037 | if (err) |
1038 | return err; |
1039 | } |
1040 | |
1041 | if (tb[IFLA_BRPORT_MCAST_MAX_GROUPS]) { |
1042 | u32 max_groups; |
1043 | |
1044 | max_groups = nla_get_u32(nla: tb[IFLA_BRPORT_MCAST_MAX_GROUPS]); |
1045 | br_multicast_ngroups_set_max(pmctx: &p->multicast_ctx, max: max_groups); |
1046 | } |
1047 | #endif |
1048 | |
1049 | if (tb[IFLA_BRPORT_GROUP_FWD_MASK]) { |
1050 | u16 fwd_mask = nla_get_u16(nla: tb[IFLA_BRPORT_GROUP_FWD_MASK]); |
1051 | |
1052 | if (fwd_mask & BR_GROUPFWD_MACPAUSE) |
1053 | return -EINVAL; |
1054 | p->group_fwd_mask = fwd_mask; |
1055 | } |
1056 | |
1057 | if (tb[IFLA_BRPORT_BACKUP_PORT]) { |
1058 | struct net_device *backup_dev = NULL; |
1059 | u32 backup_ifindex; |
1060 | |
1061 | backup_ifindex = nla_get_u32(nla: tb[IFLA_BRPORT_BACKUP_PORT]); |
1062 | if (backup_ifindex) { |
1063 | backup_dev = __dev_get_by_index(net: dev_net(dev: p->dev), |
1064 | ifindex: backup_ifindex); |
1065 | if (!backup_dev) |
1066 | return -ENOENT; |
1067 | } |
1068 | |
1069 | err = nbp_backup_change(p, backup_dev); |
1070 | if (err) |
1071 | return err; |
1072 | } |
1073 | |
1074 | if (tb[IFLA_BRPORT_BACKUP_NHID]) { |
1075 | u32 backup_nhid = nla_get_u32(nla: tb[IFLA_BRPORT_BACKUP_NHID]); |
1076 | |
1077 | WRITE_ONCE(p->backup_nhid, backup_nhid); |
1078 | } |
1079 | |
1080 | return 0; |
1081 | } |
1082 | |
1083 | /* Change state and parameters on port. */ |
1084 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags, |
1085 | struct netlink_ext_ack *extack) |
1086 | { |
1087 | struct net_bridge *br = (struct net_bridge *)netdev_priv(dev); |
1088 | struct nlattr *tb[IFLA_BRPORT_MAX + 1]; |
1089 | struct net_bridge_port *p; |
1090 | struct nlattr *protinfo; |
1091 | struct nlattr *afspec; |
1092 | bool changed = false; |
1093 | int err = 0; |
1094 | |
1095 | protinfo = nlmsg_find_attr(nlh, hdrlen: sizeof(struct ifinfomsg), IFLA_PROTINFO); |
1096 | afspec = nlmsg_find_attr(nlh, hdrlen: sizeof(struct ifinfomsg), attrtype: IFLA_AF_SPEC); |
1097 | if (!protinfo && !afspec) |
1098 | return 0; |
1099 | |
1100 | p = br_port_get_rtnl(dev); |
1101 | /* We want to accept dev as bridge itself if the AF_SPEC |
1102 | * is set to see if someone is setting vlan info on the bridge |
1103 | */ |
1104 | if (!p && !afspec) |
1105 | return -EINVAL; |
1106 | |
1107 | if (p && protinfo) { |
1108 | if (protinfo->nla_type & NLA_F_NESTED) { |
1109 | err = nla_parse_nested_deprecated(tb, IFLA_BRPORT_MAX, |
1110 | nla: protinfo, |
1111 | policy: br_port_policy, |
1112 | NULL); |
1113 | if (err) |
1114 | return err; |
1115 | |
1116 | spin_lock_bh(lock: &p->br->lock); |
1117 | err = br_setport(p, tb, extack); |
1118 | spin_unlock_bh(lock: &p->br->lock); |
1119 | } else { |
1120 | /* Binary compatibility with old RSTP */ |
1121 | if (nla_len(nla: protinfo) < sizeof(u8)) |
1122 | return -EINVAL; |
1123 | |
1124 | spin_lock_bh(lock: &p->br->lock); |
1125 | err = br_set_port_state(p, state: nla_get_u8(nla: protinfo)); |
1126 | spin_unlock_bh(lock: &p->br->lock); |
1127 | } |
1128 | if (err) |
1129 | goto out; |
1130 | changed = true; |
1131 | } |
1132 | |
1133 | if (afspec) |
1134 | err = br_afspec(br, p, af_spec: afspec, RTM_SETLINK, changed: &changed, extack); |
1135 | |
1136 | if (changed) |
1137 | br_ifinfo_notify(RTM_NEWLINK, br, port: p); |
1138 | out: |
1139 | return err; |
1140 | } |
1141 | |
1142 | /* Delete port information */ |
1143 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags) |
1144 | { |
1145 | struct net_bridge *br = (struct net_bridge *)netdev_priv(dev); |
1146 | struct net_bridge_port *p; |
1147 | struct nlattr *afspec; |
1148 | bool changed = false; |
1149 | int err = 0; |
1150 | |
1151 | afspec = nlmsg_find_attr(nlh, hdrlen: sizeof(struct ifinfomsg), attrtype: IFLA_AF_SPEC); |
1152 | if (!afspec) |
1153 | return 0; |
1154 | |
1155 | p = br_port_get_rtnl(dev); |
1156 | /* We want to accept dev as bridge itself as well */ |
1157 | if (!p && !netif_is_bridge_master(dev)) |
1158 | return -EINVAL; |
1159 | |
1160 | err = br_afspec(br, p, af_spec: afspec, RTM_DELLINK, changed: &changed, NULL); |
1161 | if (changed) |
1162 | /* Send RTM_NEWLINK because userspace |
1163 | * expects RTM_NEWLINK for vlan dels |
1164 | */ |
1165 | br_ifinfo_notify(RTM_NEWLINK, br, port: p); |
1166 | |
1167 | return err; |
1168 | } |
1169 | |
1170 | static int br_validate(struct nlattr *tb[], struct nlattr *data[], |
1171 | struct netlink_ext_ack *extack) |
1172 | { |
1173 | if (tb[IFLA_ADDRESS]) { |
1174 | if (nla_len(nla: tb[IFLA_ADDRESS]) != ETH_ALEN) |
1175 | return -EINVAL; |
1176 | if (!is_valid_ether_addr(addr: nla_data(nla: tb[IFLA_ADDRESS]))) |
1177 | return -EADDRNOTAVAIL; |
1178 | } |
1179 | |
1180 | if (!data) |
1181 | return 0; |
1182 | |
1183 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
1184 | if (data[IFLA_BR_VLAN_PROTOCOL] && |
1185 | !eth_type_vlan(ethertype: nla_get_be16(nla: data[IFLA_BR_VLAN_PROTOCOL]))) |
1186 | return -EPROTONOSUPPORT; |
1187 | |
1188 | if (data[IFLA_BR_VLAN_DEFAULT_PVID]) { |
1189 | __u16 defpvid = nla_get_u16(nla: data[IFLA_BR_VLAN_DEFAULT_PVID]); |
1190 | |
1191 | if (defpvid >= VLAN_VID_MASK) |
1192 | return -EINVAL; |
1193 | } |
1194 | #endif |
1195 | |
1196 | return 0; |
1197 | } |
1198 | |
1199 | static int br_port_slave_changelink(struct net_device *brdev, |
1200 | struct net_device *dev, |
1201 | struct nlattr *tb[], |
1202 | struct nlattr *data[], |
1203 | struct netlink_ext_ack *extack) |
1204 | { |
1205 | struct net_bridge *br = netdev_priv(dev: brdev); |
1206 | int ret; |
1207 | |
1208 | if (!data) |
1209 | return 0; |
1210 | |
1211 | spin_lock_bh(lock: &br->lock); |
1212 | ret = br_setport(p: br_port_get_rtnl(dev), tb: data, extack); |
1213 | spin_unlock_bh(lock: &br->lock); |
1214 | |
1215 | return ret; |
1216 | } |
1217 | |
1218 | static int br_port_fill_slave_info(struct sk_buff *skb, |
1219 | const struct net_device *brdev, |
1220 | const struct net_device *dev) |
1221 | { |
1222 | return br_port_fill_attrs(skb, p: br_port_get_rtnl(dev)); |
1223 | } |
1224 | |
1225 | static size_t br_port_get_slave_size(const struct net_device *brdev, |
1226 | const struct net_device *dev) |
1227 | { |
1228 | return br_port_info_size(); |
1229 | } |
1230 | |
1231 | static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = { |
1232 | [IFLA_BR_UNSPEC] = { .strict_start_type = |
1233 | IFLA_BR_FDB_N_LEARNED }, |
1234 | [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 }, |
1235 | [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 }, |
1236 | [IFLA_BR_MAX_AGE] = { .type = NLA_U32 }, |
1237 | [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 }, |
1238 | [IFLA_BR_STP_STATE] = { .type = NLA_U32 }, |
1239 | [IFLA_BR_PRIORITY] = { .type = NLA_U16 }, |
1240 | [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 }, |
1241 | [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 }, |
1242 | [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 }, |
1243 | [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY, |
1244 | .len = ETH_ALEN }, |
1245 | [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 }, |
1246 | [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 }, |
1247 | [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 }, |
1248 | [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 }, |
1249 | [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 }, |
1250 | [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 }, |
1251 | [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 }, |
1252 | [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 }, |
1253 | [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 }, |
1254 | [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 }, |
1255 | [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 }, |
1256 | [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 }, |
1257 | [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 }, |
1258 | [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 }, |
1259 | [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 }, |
1260 | [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 }, |
1261 | [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 }, |
1262 | [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 }, |
1263 | [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 }, |
1264 | [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 }, |
1265 | [IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 }, |
1266 | [IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 }, |
1267 | [IFLA_BR_VLAN_STATS_PER_PORT] = { .type = NLA_U8 }, |
1268 | [IFLA_BR_MULTI_BOOLOPT] = |
1269 | NLA_POLICY_EXACT_LEN(sizeof(struct br_boolopt_multi)), |
1270 | [IFLA_BR_FDB_N_LEARNED] = { .type = NLA_REJECT }, |
1271 | [IFLA_BR_FDB_MAX_LEARNED] = { .type = NLA_U32 }, |
1272 | }; |
1273 | |
1274 | static int br_changelink(struct net_device *brdev, struct nlattr *tb[], |
1275 | struct nlattr *data[], |
1276 | struct netlink_ext_ack *extack) |
1277 | { |
1278 | struct net_bridge *br = netdev_priv(dev: brdev); |
1279 | int err; |
1280 | |
1281 | if (!data) |
1282 | return 0; |
1283 | |
1284 | if (data[IFLA_BR_FORWARD_DELAY]) { |
1285 | err = br_set_forward_delay(br, x: nla_get_u32(nla: data[IFLA_BR_FORWARD_DELAY])); |
1286 | if (err) |
1287 | return err; |
1288 | } |
1289 | |
1290 | if (data[IFLA_BR_HELLO_TIME]) { |
1291 | err = br_set_hello_time(br, x: nla_get_u32(nla: data[IFLA_BR_HELLO_TIME])); |
1292 | if (err) |
1293 | return err; |
1294 | } |
1295 | |
1296 | if (data[IFLA_BR_MAX_AGE]) { |
1297 | err = br_set_max_age(br, x: nla_get_u32(nla: data[IFLA_BR_MAX_AGE])); |
1298 | if (err) |
1299 | return err; |
1300 | } |
1301 | |
1302 | if (data[IFLA_BR_AGEING_TIME]) { |
1303 | err = br_set_ageing_time(br, ageing_time: nla_get_u32(nla: data[IFLA_BR_AGEING_TIME])); |
1304 | if (err) |
1305 | return err; |
1306 | } |
1307 | |
1308 | if (data[IFLA_BR_STP_STATE]) { |
1309 | u32 stp_enabled = nla_get_u32(nla: data[IFLA_BR_STP_STATE]); |
1310 | |
1311 | err = br_stp_set_enabled(br, val: stp_enabled, extack); |
1312 | if (err) |
1313 | return err; |
1314 | } |
1315 | |
1316 | if (data[IFLA_BR_PRIORITY]) { |
1317 | u32 priority = nla_get_u16(nla: data[IFLA_BR_PRIORITY]); |
1318 | |
1319 | br_stp_set_bridge_priority(br, newprio: priority); |
1320 | } |
1321 | |
1322 | if (data[IFLA_BR_VLAN_FILTERING]) { |
1323 | u8 vlan_filter = nla_get_u8(nla: data[IFLA_BR_VLAN_FILTERING]); |
1324 | |
1325 | err = br_vlan_filter_toggle(br, val: vlan_filter, extack); |
1326 | if (err) |
1327 | return err; |
1328 | } |
1329 | |
1330 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
1331 | if (data[IFLA_BR_VLAN_PROTOCOL]) { |
1332 | __be16 vlan_proto = nla_get_be16(nla: data[IFLA_BR_VLAN_PROTOCOL]); |
1333 | |
1334 | err = __br_vlan_set_proto(br, proto: vlan_proto, extack); |
1335 | if (err) |
1336 | return err; |
1337 | } |
1338 | |
1339 | if (data[IFLA_BR_VLAN_DEFAULT_PVID]) { |
1340 | __u16 defpvid = nla_get_u16(nla: data[IFLA_BR_VLAN_DEFAULT_PVID]); |
1341 | |
1342 | err = __br_vlan_set_default_pvid(br, pvid: defpvid, extack); |
1343 | if (err) |
1344 | return err; |
1345 | } |
1346 | |
1347 | if (data[IFLA_BR_VLAN_STATS_ENABLED]) { |
1348 | __u8 vlan_stats = nla_get_u8(nla: data[IFLA_BR_VLAN_STATS_ENABLED]); |
1349 | |
1350 | err = br_vlan_set_stats(br, val: vlan_stats); |
1351 | if (err) |
1352 | return err; |
1353 | } |
1354 | |
1355 | if (data[IFLA_BR_VLAN_STATS_PER_PORT]) { |
1356 | __u8 per_port = nla_get_u8(nla: data[IFLA_BR_VLAN_STATS_PER_PORT]); |
1357 | |
1358 | err = br_vlan_set_stats_per_port(br, val: per_port); |
1359 | if (err) |
1360 | return err; |
1361 | } |
1362 | #endif |
1363 | |
1364 | if (data[IFLA_BR_GROUP_FWD_MASK]) { |
1365 | u16 fwd_mask = nla_get_u16(nla: data[IFLA_BR_GROUP_FWD_MASK]); |
1366 | |
1367 | if (fwd_mask & BR_GROUPFWD_RESTRICTED) |
1368 | return -EINVAL; |
1369 | br->group_fwd_mask = fwd_mask; |
1370 | } |
1371 | |
1372 | if (data[IFLA_BR_GROUP_ADDR]) { |
1373 | u8 new_addr[ETH_ALEN]; |
1374 | |
1375 | if (nla_len(nla: data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN) |
1376 | return -EINVAL; |
1377 | memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN); |
1378 | if (!is_link_local_ether_addr(addr: new_addr)) |
1379 | return -EINVAL; |
1380 | if (new_addr[5] == 1 || /* 802.3x Pause address */ |
1381 | new_addr[5] == 2 || /* 802.3ad Slow protocols */ |
1382 | new_addr[5] == 3) /* 802.1X PAE address */ |
1383 | return -EINVAL; |
1384 | spin_lock_bh(lock: &br->lock); |
1385 | memcpy(br->group_addr, new_addr, sizeof(br->group_addr)); |
1386 | spin_unlock_bh(lock: &br->lock); |
1387 | br_opt_toggle(br, opt: BROPT_GROUP_ADDR_SET, on: true); |
1388 | br_recalculate_fwd_mask(br); |
1389 | } |
1390 | |
1391 | if (data[IFLA_BR_FDB_FLUSH]) { |
1392 | struct net_bridge_fdb_flush_desc desc = { |
1393 | .flags_mask = BIT(BR_FDB_STATIC) |
1394 | }; |
1395 | |
1396 | br_fdb_flush(br, desc: &desc); |
1397 | } |
1398 | |
1399 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
1400 | if (data[IFLA_BR_MCAST_ROUTER]) { |
1401 | u8 multicast_router = nla_get_u8(nla: data[IFLA_BR_MCAST_ROUTER]); |
1402 | |
1403 | err = br_multicast_set_router(brmctx: &br->multicast_ctx, |
1404 | val: multicast_router); |
1405 | if (err) |
1406 | return err; |
1407 | } |
1408 | |
1409 | if (data[IFLA_BR_MCAST_SNOOPING]) { |
1410 | u8 mcast_snooping = nla_get_u8(nla: data[IFLA_BR_MCAST_SNOOPING]); |
1411 | |
1412 | err = br_multicast_toggle(br, val: mcast_snooping, extack); |
1413 | if (err) |
1414 | return err; |
1415 | } |
1416 | |
1417 | if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) { |
1418 | u8 val; |
1419 | |
1420 | val = nla_get_u8(nla: data[IFLA_BR_MCAST_QUERY_USE_IFADDR]); |
1421 | br_opt_toggle(br, opt: BROPT_MULTICAST_QUERY_USE_IFADDR, on: !!val); |
1422 | } |
1423 | |
1424 | if (data[IFLA_BR_MCAST_QUERIER]) { |
1425 | u8 mcast_querier = nla_get_u8(nla: data[IFLA_BR_MCAST_QUERIER]); |
1426 | |
1427 | err = br_multicast_set_querier(brmctx: &br->multicast_ctx, |
1428 | val: mcast_querier); |
1429 | if (err) |
1430 | return err; |
1431 | } |
1432 | |
1433 | if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) |
1434 | br_warn(br, "the hash_elasticity option has been deprecated and is always %u\n" , |
1435 | RHT_ELASTICITY); |
1436 | |
1437 | if (data[IFLA_BR_MCAST_HASH_MAX]) |
1438 | br->hash_max = nla_get_u32(nla: data[IFLA_BR_MCAST_HASH_MAX]); |
1439 | |
1440 | if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) { |
1441 | u32 val = nla_get_u32(nla: data[IFLA_BR_MCAST_LAST_MEMBER_CNT]); |
1442 | |
1443 | br->multicast_ctx.multicast_last_member_count = val; |
1444 | } |
1445 | |
1446 | if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) { |
1447 | u32 val = nla_get_u32(nla: data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]); |
1448 | |
1449 | br->multicast_ctx.multicast_startup_query_count = val; |
1450 | } |
1451 | |
1452 | if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) { |
1453 | u64 val = nla_get_u64(nla: data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]); |
1454 | |
1455 | br->multicast_ctx.multicast_last_member_interval = clock_t_to_jiffies(x: val); |
1456 | } |
1457 | |
1458 | if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) { |
1459 | u64 val = nla_get_u64(nla: data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]); |
1460 | |
1461 | br->multicast_ctx.multicast_membership_interval = clock_t_to_jiffies(x: val); |
1462 | } |
1463 | |
1464 | if (data[IFLA_BR_MCAST_QUERIER_INTVL]) { |
1465 | u64 val = nla_get_u64(nla: data[IFLA_BR_MCAST_QUERIER_INTVL]); |
1466 | |
1467 | br->multicast_ctx.multicast_querier_interval = clock_t_to_jiffies(x: val); |
1468 | } |
1469 | |
1470 | if (data[IFLA_BR_MCAST_QUERY_INTVL]) { |
1471 | u64 val = nla_get_u64(nla: data[IFLA_BR_MCAST_QUERY_INTVL]); |
1472 | |
1473 | br_multicast_set_query_intvl(brmctx: &br->multicast_ctx, val); |
1474 | } |
1475 | |
1476 | if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) { |
1477 | u64 val = nla_get_u64(nla: data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]); |
1478 | |
1479 | br->multicast_ctx.multicast_query_response_interval = clock_t_to_jiffies(x: val); |
1480 | } |
1481 | |
1482 | if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) { |
1483 | u64 val = nla_get_u64(nla: data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]); |
1484 | |
1485 | br_multicast_set_startup_query_intvl(brmctx: &br->multicast_ctx, val); |
1486 | } |
1487 | |
1488 | if (data[IFLA_BR_MCAST_STATS_ENABLED]) { |
1489 | __u8 mcast_stats; |
1490 | |
1491 | mcast_stats = nla_get_u8(nla: data[IFLA_BR_MCAST_STATS_ENABLED]); |
1492 | br_opt_toggle(br, opt: BROPT_MULTICAST_STATS_ENABLED, on: !!mcast_stats); |
1493 | } |
1494 | |
1495 | if (data[IFLA_BR_MCAST_IGMP_VERSION]) { |
1496 | __u8 igmp_version; |
1497 | |
1498 | igmp_version = nla_get_u8(nla: data[IFLA_BR_MCAST_IGMP_VERSION]); |
1499 | err = br_multicast_set_igmp_version(brmctx: &br->multicast_ctx, |
1500 | val: igmp_version); |
1501 | if (err) |
1502 | return err; |
1503 | } |
1504 | |
1505 | #if IS_ENABLED(CONFIG_IPV6) |
1506 | if (data[IFLA_BR_MCAST_MLD_VERSION]) { |
1507 | __u8 mld_version; |
1508 | |
1509 | mld_version = nla_get_u8(nla: data[IFLA_BR_MCAST_MLD_VERSION]); |
1510 | err = br_multicast_set_mld_version(brmctx: &br->multicast_ctx, |
1511 | val: mld_version); |
1512 | if (err) |
1513 | return err; |
1514 | } |
1515 | #endif |
1516 | #endif |
1517 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1518 | if (data[IFLA_BR_NF_CALL_IPTABLES]) { |
1519 | u8 val = nla_get_u8(nla: data[IFLA_BR_NF_CALL_IPTABLES]); |
1520 | |
1521 | br_opt_toggle(br, opt: BROPT_NF_CALL_IPTABLES, on: !!val); |
1522 | } |
1523 | |
1524 | if (data[IFLA_BR_NF_CALL_IP6TABLES]) { |
1525 | u8 val = nla_get_u8(nla: data[IFLA_BR_NF_CALL_IP6TABLES]); |
1526 | |
1527 | br_opt_toggle(br, opt: BROPT_NF_CALL_IP6TABLES, on: !!val); |
1528 | } |
1529 | |
1530 | if (data[IFLA_BR_NF_CALL_ARPTABLES]) { |
1531 | u8 val = nla_get_u8(nla: data[IFLA_BR_NF_CALL_ARPTABLES]); |
1532 | |
1533 | br_opt_toggle(br, opt: BROPT_NF_CALL_ARPTABLES, on: !!val); |
1534 | } |
1535 | #endif |
1536 | |
1537 | if (data[IFLA_BR_MULTI_BOOLOPT]) { |
1538 | struct br_boolopt_multi *bm; |
1539 | |
1540 | bm = nla_data(nla: data[IFLA_BR_MULTI_BOOLOPT]); |
1541 | err = br_boolopt_multi_toggle(br, bm, extack); |
1542 | if (err) |
1543 | return err; |
1544 | } |
1545 | |
1546 | if (data[IFLA_BR_FDB_MAX_LEARNED]) { |
1547 | u32 val = nla_get_u32(nla: data[IFLA_BR_FDB_MAX_LEARNED]); |
1548 | |
1549 | WRITE_ONCE(br->fdb_max_learned, val); |
1550 | } |
1551 | |
1552 | return 0; |
1553 | } |
1554 | |
1555 | static int br_dev_newlink(struct net *src_net, struct net_device *dev, |
1556 | struct nlattr *tb[], struct nlattr *data[], |
1557 | struct netlink_ext_ack *extack) |
1558 | { |
1559 | struct net_bridge *br = netdev_priv(dev); |
1560 | int err; |
1561 | |
1562 | err = register_netdevice(dev); |
1563 | if (err) |
1564 | return err; |
1565 | |
1566 | if (tb[IFLA_ADDRESS]) { |
1567 | spin_lock_bh(lock: &br->lock); |
1568 | br_stp_change_bridge_id(br, a: nla_data(nla: tb[IFLA_ADDRESS])); |
1569 | spin_unlock_bh(lock: &br->lock); |
1570 | } |
1571 | |
1572 | err = br_changelink(brdev: dev, tb, data, extack); |
1573 | if (err) |
1574 | br_dev_delete(dev, NULL); |
1575 | |
1576 | return err; |
1577 | } |
1578 | |
1579 | static size_t br_get_size(const struct net_device *brdev) |
1580 | { |
1581 | return nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */ |
1582 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_HELLO_TIME */ |
1583 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_MAX_AGE */ |
1584 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_AGEING_TIME */ |
1585 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_STP_STATE */ |
1586 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BR_PRIORITY */ |
1587 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */ |
1588 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
1589 | nla_total_size(payload: sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */ |
1590 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */ |
1591 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */ |
1592 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_VLAN_STATS_PER_PORT */ |
1593 | #endif |
1594 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */ |
1595 | nla_total_size(payload: sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */ |
1596 | nla_total_size(payload: sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */ |
1597 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BR_ROOT_PORT */ |
1598 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */ |
1599 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */ |
1600 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */ |
1601 | nla_total_size_64bit(payload: sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */ |
1602 | nla_total_size_64bit(payload: sizeof(u64)) + /* IFLA_BR_TCN_TIMER */ |
1603 | nla_total_size_64bit(payload: sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */ |
1604 | nla_total_size_64bit(payload: sizeof(u64)) + /* IFLA_BR_GC_TIMER */ |
1605 | nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */ |
1606 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_FDB_N_LEARNED */ |
1607 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_FDB_MAX_LEARNED */ |
1608 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
1609 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */ |
1610 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */ |
1611 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */ |
1612 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */ |
1613 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */ |
1614 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */ |
1615 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */ |
1616 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */ |
1617 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */ |
1618 | nla_total_size_64bit(payload: sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */ |
1619 | nla_total_size_64bit(payload: sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */ |
1620 | nla_total_size_64bit(payload: sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */ |
1621 | nla_total_size_64bit(payload: sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */ |
1622 | nla_total_size_64bit(payload: sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */ |
1623 | nla_total_size_64bit(payload: sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */ |
1624 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_MCAST_IGMP_VERSION */ |
1625 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_MCAST_MLD_VERSION */ |
1626 | br_multicast_querier_state_size() + /* IFLA_BR_MCAST_QUERIER_STATE */ |
1627 | #endif |
1628 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1629 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */ |
1630 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */ |
1631 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */ |
1632 | #endif |
1633 | nla_total_size(payload: sizeof(struct br_boolopt_multi)) + /* IFLA_BR_MULTI_BOOLOPT */ |
1634 | 0; |
1635 | } |
1636 | |
1637 | static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev) |
1638 | { |
1639 | struct net_bridge *br = netdev_priv(dev: brdev); |
1640 | u32 forward_delay = jiffies_to_clock_t(x: br->forward_delay); |
1641 | u32 hello_time = jiffies_to_clock_t(x: br->hello_time); |
1642 | u32 age_time = jiffies_to_clock_t(x: br->max_age); |
1643 | u32 ageing_time = jiffies_to_clock_t(x: br->ageing_time); |
1644 | u32 stp_enabled = br->stp_enabled; |
1645 | u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]; |
1646 | u8 vlan_enabled = br_vlan_enabled(dev: br->dev); |
1647 | struct br_boolopt_multi bm; |
1648 | u64 clockval; |
1649 | |
1650 | clockval = br_timer_value(timer: &br->hello_timer); |
1651 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BR_HELLO_TIMER, value: clockval, padattr: IFLA_BR_PAD)) |
1652 | return -EMSGSIZE; |
1653 | clockval = br_timer_value(timer: &br->tcn_timer); |
1654 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BR_TCN_TIMER, value: clockval, padattr: IFLA_BR_PAD)) |
1655 | return -EMSGSIZE; |
1656 | clockval = br_timer_value(timer: &br->topology_change_timer); |
1657 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BR_TOPOLOGY_CHANGE_TIMER, value: clockval, |
1658 | padattr: IFLA_BR_PAD)) |
1659 | return -EMSGSIZE; |
1660 | clockval = br_timer_value(timer: &br->gc_work.timer); |
1661 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BR_GC_TIMER, value: clockval, padattr: IFLA_BR_PAD)) |
1662 | return -EMSGSIZE; |
1663 | |
1664 | br_boolopt_multi_get(br, bm: &bm); |
1665 | if (nla_put_u32(skb, attrtype: IFLA_BR_FORWARD_DELAY, value: forward_delay) || |
1666 | nla_put_u32(skb, attrtype: IFLA_BR_HELLO_TIME, value: hello_time) || |
1667 | nla_put_u32(skb, attrtype: IFLA_BR_MAX_AGE, value: age_time) || |
1668 | nla_put_u32(skb, attrtype: IFLA_BR_AGEING_TIME, value: ageing_time) || |
1669 | nla_put_u32(skb, attrtype: IFLA_BR_STP_STATE, value: stp_enabled) || |
1670 | nla_put_u16(skb, attrtype: IFLA_BR_PRIORITY, value: priority) || |
1671 | nla_put_u8(skb, attrtype: IFLA_BR_VLAN_FILTERING, value: vlan_enabled) || |
1672 | nla_put_u16(skb, attrtype: IFLA_BR_GROUP_FWD_MASK, value: br->group_fwd_mask) || |
1673 | nla_put(skb, attrtype: IFLA_BR_BRIDGE_ID, attrlen: sizeof(struct ifla_bridge_id), |
1674 | data: &br->bridge_id) || |
1675 | nla_put(skb, attrtype: IFLA_BR_ROOT_ID, attrlen: sizeof(struct ifla_bridge_id), |
1676 | data: &br->designated_root) || |
1677 | nla_put_u16(skb, attrtype: IFLA_BR_ROOT_PORT, value: br->root_port) || |
1678 | nla_put_u32(skb, attrtype: IFLA_BR_ROOT_PATH_COST, value: br->root_path_cost) || |
1679 | nla_put_u8(skb, attrtype: IFLA_BR_TOPOLOGY_CHANGE, value: br->topology_change) || |
1680 | nla_put_u8(skb, attrtype: IFLA_BR_TOPOLOGY_CHANGE_DETECTED, |
1681 | value: br->topology_change_detected) || |
1682 | nla_put(skb, attrtype: IFLA_BR_GROUP_ADDR, ETH_ALEN, data: br->group_addr) || |
1683 | nla_put(skb, attrtype: IFLA_BR_MULTI_BOOLOPT, attrlen: sizeof(bm), data: &bm) || |
1684 | nla_put_u32(skb, attrtype: IFLA_BR_FDB_N_LEARNED, |
1685 | value: atomic_read(v: &br->fdb_n_learned)) || |
1686 | nla_put_u32(skb, attrtype: IFLA_BR_FDB_MAX_LEARNED, value: br->fdb_max_learned)) |
1687 | return -EMSGSIZE; |
1688 | |
1689 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
1690 | if (nla_put_be16(skb, attrtype: IFLA_BR_VLAN_PROTOCOL, value: br->vlan_proto) || |
1691 | nla_put_u16(skb, attrtype: IFLA_BR_VLAN_DEFAULT_PVID, value: br->default_pvid) || |
1692 | nla_put_u8(skb, attrtype: IFLA_BR_VLAN_STATS_ENABLED, |
1693 | value: br_opt_get(br, opt: BROPT_VLAN_STATS_ENABLED)) || |
1694 | nla_put_u8(skb, attrtype: IFLA_BR_VLAN_STATS_PER_PORT, |
1695 | value: br_opt_get(br, opt: BROPT_VLAN_STATS_PER_PORT))) |
1696 | return -EMSGSIZE; |
1697 | #endif |
1698 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
1699 | if (nla_put_u8(skb, attrtype: IFLA_BR_MCAST_ROUTER, |
1700 | value: br->multicast_ctx.multicast_router) || |
1701 | nla_put_u8(skb, attrtype: IFLA_BR_MCAST_SNOOPING, |
1702 | value: br_opt_get(br, opt: BROPT_MULTICAST_ENABLED)) || |
1703 | nla_put_u8(skb, attrtype: IFLA_BR_MCAST_QUERY_USE_IFADDR, |
1704 | value: br_opt_get(br, opt: BROPT_MULTICAST_QUERY_USE_IFADDR)) || |
1705 | nla_put_u8(skb, attrtype: IFLA_BR_MCAST_QUERIER, |
1706 | value: br->multicast_ctx.multicast_querier) || |
1707 | nla_put_u8(skb, attrtype: IFLA_BR_MCAST_STATS_ENABLED, |
1708 | value: br_opt_get(br, opt: BROPT_MULTICAST_STATS_ENABLED)) || |
1709 | nla_put_u32(skb, attrtype: IFLA_BR_MCAST_HASH_ELASTICITY, RHT_ELASTICITY) || |
1710 | nla_put_u32(skb, attrtype: IFLA_BR_MCAST_HASH_MAX, value: br->hash_max) || |
1711 | nla_put_u32(skb, attrtype: IFLA_BR_MCAST_LAST_MEMBER_CNT, |
1712 | value: br->multicast_ctx.multicast_last_member_count) || |
1713 | nla_put_u32(skb, attrtype: IFLA_BR_MCAST_STARTUP_QUERY_CNT, |
1714 | value: br->multicast_ctx.multicast_startup_query_count) || |
1715 | nla_put_u8(skb, attrtype: IFLA_BR_MCAST_IGMP_VERSION, |
1716 | value: br->multicast_ctx.multicast_igmp_version) || |
1717 | br_multicast_dump_querier_state(skb, brmctx: &br->multicast_ctx, |
1718 | nest_attr: IFLA_BR_MCAST_QUERIER_STATE)) |
1719 | return -EMSGSIZE; |
1720 | #if IS_ENABLED(CONFIG_IPV6) |
1721 | if (nla_put_u8(skb, attrtype: IFLA_BR_MCAST_MLD_VERSION, |
1722 | value: br->multicast_ctx.multicast_mld_version)) |
1723 | return -EMSGSIZE; |
1724 | #endif |
1725 | clockval = jiffies_to_clock_t(x: br->multicast_ctx.multicast_last_member_interval); |
1726 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BR_MCAST_LAST_MEMBER_INTVL, value: clockval, |
1727 | padattr: IFLA_BR_PAD)) |
1728 | return -EMSGSIZE; |
1729 | clockval = jiffies_to_clock_t(x: br->multicast_ctx.multicast_membership_interval); |
1730 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BR_MCAST_MEMBERSHIP_INTVL, value: clockval, |
1731 | padattr: IFLA_BR_PAD)) |
1732 | return -EMSGSIZE; |
1733 | clockval = jiffies_to_clock_t(x: br->multicast_ctx.multicast_querier_interval); |
1734 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BR_MCAST_QUERIER_INTVL, value: clockval, |
1735 | padattr: IFLA_BR_PAD)) |
1736 | return -EMSGSIZE; |
1737 | clockval = jiffies_to_clock_t(x: br->multicast_ctx.multicast_query_interval); |
1738 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BR_MCAST_QUERY_INTVL, value: clockval, |
1739 | padattr: IFLA_BR_PAD)) |
1740 | return -EMSGSIZE; |
1741 | clockval = jiffies_to_clock_t(x: br->multicast_ctx.multicast_query_response_interval); |
1742 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, value: clockval, |
1743 | padattr: IFLA_BR_PAD)) |
1744 | return -EMSGSIZE; |
1745 | clockval = jiffies_to_clock_t(x: br->multicast_ctx.multicast_startup_query_interval); |
1746 | if (nla_put_u64_64bit(skb, attrtype: IFLA_BR_MCAST_STARTUP_QUERY_INTVL, value: clockval, |
1747 | padattr: IFLA_BR_PAD)) |
1748 | return -EMSGSIZE; |
1749 | #endif |
1750 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1751 | if (nla_put_u8(skb, attrtype: IFLA_BR_NF_CALL_IPTABLES, |
1752 | value: br_opt_get(br, opt: BROPT_NF_CALL_IPTABLES) ? 1 : 0) || |
1753 | nla_put_u8(skb, attrtype: IFLA_BR_NF_CALL_IP6TABLES, |
1754 | value: br_opt_get(br, opt: BROPT_NF_CALL_IP6TABLES) ? 1 : 0) || |
1755 | nla_put_u8(skb, attrtype: IFLA_BR_NF_CALL_ARPTABLES, |
1756 | value: br_opt_get(br, opt: BROPT_NF_CALL_ARPTABLES) ? 1 : 0)) |
1757 | return -EMSGSIZE; |
1758 | #endif |
1759 | |
1760 | return 0; |
1761 | } |
1762 | |
1763 | static size_t br_get_linkxstats_size(const struct net_device *dev, int attr) |
1764 | { |
1765 | struct net_bridge_port *p = NULL; |
1766 | struct net_bridge_vlan_group *vg; |
1767 | struct net_bridge_vlan *v; |
1768 | struct net_bridge *br; |
1769 | int numvls = 0; |
1770 | |
1771 | switch (attr) { |
1772 | case IFLA_STATS_LINK_XSTATS: |
1773 | br = netdev_priv(dev); |
1774 | vg = br_vlan_group(br); |
1775 | break; |
1776 | case IFLA_STATS_LINK_XSTATS_SLAVE: |
1777 | p = br_port_get_rtnl(dev); |
1778 | if (!p) |
1779 | return 0; |
1780 | vg = nbp_vlan_group(p); |
1781 | break; |
1782 | default: |
1783 | return 0; |
1784 | } |
1785 | |
1786 | if (vg) { |
1787 | /* we need to count all, even placeholder entries */ |
1788 | list_for_each_entry(v, &vg->vlan_list, vlist) |
1789 | numvls++; |
1790 | } |
1791 | |
1792 | return numvls * nla_total_size(payload: sizeof(struct bridge_vlan_xstats)) + |
1793 | nla_total_size_64bit(payload: sizeof(struct br_mcast_stats)) + |
1794 | (p ? nla_total_size_64bit(payload: sizeof(p->stp_xstats)) : 0) + |
1795 | nla_total_size(payload: 0); |
1796 | } |
1797 | |
1798 | static int br_fill_linkxstats(struct sk_buff *skb, |
1799 | const struct net_device *dev, |
1800 | int *prividx, int attr) |
1801 | { |
1802 | struct nlattr *nla __maybe_unused; |
1803 | struct net_bridge_port *p = NULL; |
1804 | struct net_bridge_vlan_group *vg; |
1805 | struct net_bridge_vlan *v; |
1806 | struct net_bridge *br; |
1807 | struct nlattr *nest; |
1808 | int vl_idx = 0; |
1809 | |
1810 | switch (attr) { |
1811 | case IFLA_STATS_LINK_XSTATS: |
1812 | br = netdev_priv(dev); |
1813 | vg = br_vlan_group(br); |
1814 | break; |
1815 | case IFLA_STATS_LINK_XSTATS_SLAVE: |
1816 | p = br_port_get_rtnl(dev); |
1817 | if (!p) |
1818 | return 0; |
1819 | br = p->br; |
1820 | vg = nbp_vlan_group(p); |
1821 | break; |
1822 | default: |
1823 | return -EINVAL; |
1824 | } |
1825 | |
1826 | nest = nla_nest_start_noflag(skb, attrtype: LINK_XSTATS_TYPE_BRIDGE); |
1827 | if (!nest) |
1828 | return -EMSGSIZE; |
1829 | |
1830 | if (vg) { |
1831 | u16 pvid; |
1832 | |
1833 | pvid = br_get_pvid(vg); |
1834 | list_for_each_entry(v, &vg->vlan_list, vlist) { |
1835 | struct bridge_vlan_xstats vxi; |
1836 | struct pcpu_sw_netstats stats; |
1837 | |
1838 | if (++vl_idx < *prividx) |
1839 | continue; |
1840 | memset(&vxi, 0, sizeof(vxi)); |
1841 | vxi.vid = v->vid; |
1842 | vxi.flags = v->flags; |
1843 | if (v->vid == pvid) |
1844 | vxi.flags |= BRIDGE_VLAN_INFO_PVID; |
1845 | br_vlan_get_stats(v, stats: &stats); |
1846 | vxi.rx_bytes = u64_stats_read(p: &stats.rx_bytes); |
1847 | vxi.rx_packets = u64_stats_read(p: &stats.rx_packets); |
1848 | vxi.tx_bytes = u64_stats_read(p: &stats.tx_bytes); |
1849 | vxi.tx_packets = u64_stats_read(p: &stats.tx_packets); |
1850 | |
1851 | if (nla_put(skb, attrtype: BRIDGE_XSTATS_VLAN, attrlen: sizeof(vxi), data: &vxi)) |
1852 | goto nla_put_failure; |
1853 | } |
1854 | } |
1855 | |
1856 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
1857 | if (++vl_idx >= *prividx) { |
1858 | nla = nla_reserve_64bit(skb, attrtype: BRIDGE_XSTATS_MCAST, |
1859 | attrlen: sizeof(struct br_mcast_stats), |
1860 | padattr: BRIDGE_XSTATS_PAD); |
1861 | if (!nla) |
1862 | goto nla_put_failure; |
1863 | br_multicast_get_stats(br, p, dest: nla_data(nla)); |
1864 | } |
1865 | #endif |
1866 | |
1867 | if (p) { |
1868 | nla = nla_reserve_64bit(skb, attrtype: BRIDGE_XSTATS_STP, |
1869 | attrlen: sizeof(p->stp_xstats), |
1870 | padattr: BRIDGE_XSTATS_PAD); |
1871 | if (!nla) |
1872 | goto nla_put_failure; |
1873 | |
1874 | spin_lock_bh(lock: &br->lock); |
1875 | memcpy(nla_data(nla), &p->stp_xstats, sizeof(p->stp_xstats)); |
1876 | spin_unlock_bh(lock: &br->lock); |
1877 | } |
1878 | |
1879 | nla_nest_end(skb, start: nest); |
1880 | *prividx = 0; |
1881 | |
1882 | return 0; |
1883 | |
1884 | nla_put_failure: |
1885 | nla_nest_end(skb, start: nest); |
1886 | *prividx = vl_idx; |
1887 | |
1888 | return -EMSGSIZE; |
1889 | } |
1890 | |
1891 | static struct rtnl_af_ops br_af_ops __read_mostly = { |
1892 | .family = AF_BRIDGE, |
1893 | .get_link_af_size = br_get_link_af_size_filtered, |
1894 | }; |
1895 | |
1896 | struct rtnl_link_ops br_link_ops __read_mostly = { |
1897 | .kind = "bridge" , |
1898 | .priv_size = sizeof(struct net_bridge), |
1899 | .setup = br_dev_setup, |
1900 | .maxtype = IFLA_BR_MAX, |
1901 | .policy = br_policy, |
1902 | .validate = br_validate, |
1903 | .newlink = br_dev_newlink, |
1904 | .changelink = br_changelink, |
1905 | .dellink = br_dev_delete, |
1906 | .get_size = br_get_size, |
1907 | .fill_info = br_fill_info, |
1908 | .fill_linkxstats = br_fill_linkxstats, |
1909 | .get_linkxstats_size = br_get_linkxstats_size, |
1910 | |
1911 | .slave_maxtype = IFLA_BRPORT_MAX, |
1912 | .slave_policy = br_port_policy, |
1913 | .slave_changelink = br_port_slave_changelink, |
1914 | .get_slave_size = br_port_get_slave_size, |
1915 | .fill_slave_info = br_port_fill_slave_info, |
1916 | }; |
1917 | |
1918 | int __init br_netlink_init(void) |
1919 | { |
1920 | int err; |
1921 | |
1922 | br_vlan_rtnl_init(); |
1923 | rtnl_af_register(ops: &br_af_ops); |
1924 | |
1925 | err = rtnl_link_register(ops: &br_link_ops); |
1926 | if (err) |
1927 | goto out_af; |
1928 | |
1929 | return 0; |
1930 | |
1931 | out_af: |
1932 | rtnl_af_unregister(ops: &br_af_ops); |
1933 | return err; |
1934 | } |
1935 | |
1936 | void br_netlink_fini(void) |
1937 | { |
1938 | br_vlan_rtnl_uninit(); |
1939 | rtnl_af_unregister(ops: &br_af_ops); |
1940 | rtnl_link_unregister(ops: &br_link_ops); |
1941 | } |
1942 | |