Commit | Line | Data |
---|---|---|
11dc1f36 SH |
1 | /* |
2 | * Bridge netlink control interface | |
3 | * | |
4 | * Authors: | |
5 | * Stephen Hemminger <shemminger@osdl.org> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version | |
10 | * 2 of the License, or (at your option) any later version. | |
11 | */ | |
12 | ||
13 | #include <linux/kernel.h> | |
5a0e3ad6 | 14 | #include <linux/slab.h> |
bb900b27 | 15 | #include <linux/etherdevice.h> |
32fe21c0 | 16 | #include <net/rtnetlink.h> |
881d966b | 17 | #include <net/net_namespace.h> |
b854272b | 18 | #include <net/sock.h> |
407af329 | 19 | #include <uapi/linux/if_bridge.h> |
bb900b27 | 20 | |
11dc1f36 | 21 | #include "br_private.h" |
b03b6dd5 | 22 | #include "br_private_stp.h" |
efa5356b | 23 | #include "br_private_tunnel.h" |
11dc1f36 | 24 | |
2594e906 | 25 | static int __get_num_vlan_infos(struct net_bridge_vlan_group *vg, |
77751ee8 | 26 | u32 filter_mask) |
fed0a159 | 27 | { |
2594e906 NA |
28 | struct net_bridge_vlan *v; |
29 | u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0; | |
77751ee8 | 30 | u16 flags, pvid; |
fed0a159 RP |
31 | int num_vlans = 0; |
32 | ||
fed0a159 RP |
33 | if (!(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) |
34 | return 0; | |
35 | ||
77751ee8 | 36 | pvid = br_get_pvid(vg); |
2594e906 | 37 | /* Count number of vlan infos */ |
586c2b57 | 38 | list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { |
fed0a159 | 39 | flags = 0; |
2594e906 NA |
40 | /* only a context, bridge vlan not activated */ |
41 | if (!br_vlan_should_use(v)) | |
42 | continue; | |
43 | if (v->vid == pvid) | |
fed0a159 RP |
44 | flags |= BRIDGE_VLAN_INFO_PVID; |
45 | ||
2594e906 | 46 | if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED) |
fed0a159 RP |
47 | flags |= BRIDGE_VLAN_INFO_UNTAGGED; |
48 | ||
49 | if (vid_range_start == 0) { | |
50 | goto initvars; | |
2594e906 | 51 | } else if ((v->vid - vid_range_end) == 1 && |
fed0a159 | 52 | flags == vid_range_flags) { |
2594e906 | 53 | vid_range_end = v->vid; |
fed0a159 RP |
54 | continue; |
55 | } else { | |
56 | if ((vid_range_end - vid_range_start) > 0) | |
57 | num_vlans += 2; | |
58 | else | |
59 | num_vlans += 1; | |
60 | } | |
61 | initvars: | |
2594e906 NA |
62 | vid_range_start = v->vid; |
63 | vid_range_end = v->vid; | |
fed0a159 RP |
64 | vid_range_flags = flags; |
65 | } | |
66 | ||
67 | if (vid_range_start != 0) { | |
68 | if ((vid_range_end - vid_range_start) > 0) | |
69 | num_vlans += 2; | |
70 | else | |
71 | num_vlans += 1; | |
72 | } | |
73 | ||
74 | return num_vlans; | |
75 | } | |
76 | ||
2594e906 | 77 | static int br_get_num_vlan_infos(struct net_bridge_vlan_group *vg, |
77751ee8 | 78 | u32 filter_mask) |
2594e906 | 79 | { |
586c2b57 NA |
80 | int num_vlans; |
81 | ||
2594e906 NA |
82 | if (!vg) |
83 | return 0; | |
84 | ||
85 | if (filter_mask & RTEXT_FILTER_BRVLAN) | |
86 | return vg->num_vlans; | |
87 | ||
586c2b57 NA |
88 | rcu_read_lock(); |
89 | num_vlans = __get_num_vlan_infos(vg, filter_mask); | |
90 | rcu_read_unlock(); | |
91 | ||
92 | return num_vlans; | |
2594e906 NA |
93 | } |
94 | ||
fed0a159 RP |
95 | static size_t br_get_link_af_size_filtered(const struct net_device *dev, |
96 | u32 filter_mask) | |
b7853d73 | 97 | { |
2594e906 | 98 | struct net_bridge_vlan_group *vg = NULL; |
efa5356b | 99 | struct net_bridge_port *p = NULL; |
2594e906 | 100 | struct net_bridge *br; |
fed0a159 | 101 | int num_vlan_infos; |
efa5356b | 102 | size_t vinfo_sz = 0; |
b7853d73 | 103 | |
2f56f6be | 104 | rcu_read_lock(); |
2594e906 NA |
105 | if (br_port_exists(dev)) { |
106 | p = br_port_get_rcu(dev); | |
907b1e6e | 107 | vg = nbp_vlan_group_rcu(p); |
2594e906 NA |
108 | } else if (dev->priv_flags & IFF_EBRIDGE) { |
109 | br = netdev_priv(dev); | |
907b1e6e | 110 | vg = br_vlan_group_rcu(br); |
2594e906 | 111 | } |
77751ee8 | 112 | num_vlan_infos = br_get_num_vlan_infos(vg, filter_mask); |
2f56f6be | 113 | rcu_read_unlock(); |
b7853d73 | 114 | |
efa5356b RP |
115 | if (p && (p->flags & BR_VLAN_TUNNEL)) |
116 | vinfo_sz += br_get_vlan_tunnel_info_size(vg); | |
117 | ||
b7853d73 | 118 | /* Each VLAN is returned in bridge_vlan_info along with flags */ |
efa5356b RP |
119 | vinfo_sz += num_vlan_infos * nla_total_size(sizeof(struct bridge_vlan_info)); |
120 | ||
121 | return vinfo_sz; | |
b7853d73 RP |
122 | } |
123 | ||
25c71c75 | 124 | static inline size_t br_port_info_size(void) |
125 | { | |
126 | return nla_total_size(1) /* IFLA_BRPORT_STATE */ | |
127 | + nla_total_size(2) /* IFLA_BRPORT_PRIORITY */ | |
128 | + nla_total_size(4) /* IFLA_BRPORT_COST */ | |
129 | + nla_total_size(1) /* IFLA_BRPORT_MODE */ | |
a2e01a65 | 130 | + nla_total_size(1) /* IFLA_BRPORT_GUARD */ |
1007dd1a | 131 | + nla_total_size(1) /* IFLA_BRPORT_PROTECT */ |
3da889b6 | 132 | + nla_total_size(1) /* IFLA_BRPORT_FAST_LEAVE */ |
6db6f0ea | 133 | + nla_total_size(1) /* IFLA_BRPORT_MCAST_TO_UCAST */ |
9ba18891 | 134 | + nla_total_size(1) /* IFLA_BRPORT_LEARNING */ |
867a5943 | 135 | + nla_total_size(1) /* IFLA_BRPORT_UNICAST_FLOOD */ |
9051247d TK |
136 | + nla_total_size(1) /* IFLA_BRPORT_MCAST_FLOOD */ |
137 | + nla_total_size(1) /* IFLA_BRPORT_BCAST_FLOOD */ | |
355b9f9d | 138 | + nla_total_size(1) /* IFLA_BRPORT_PROXYARP */ |
786c2077 | 139 | + nla_total_size(1) /* IFLA_BRPORT_PROXYARP_WIFI */ |
efa5356b | 140 | + nla_total_size(1) /* IFLA_BRPORT_VLAN_TUNNEL */ |
821f1b21 | 141 | + nla_total_size(1) /* IFLA_BRPORT_NEIGH_SUPPRESS */ |
4ebc7660 | 142 | + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */ |
80df9a26 | 143 | + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */ |
96f94e7f NA |
144 | + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */ |
145 | + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */ | |
42d452c4 NA |
146 | + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_ID */ |
147 | + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_NO */ | |
e08e838a NA |
148 | + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */ |
149 | + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_CONFIG_PENDING */ | |
12a0faa3 ND |
150 | + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */ |
151 | + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */ | |
152 | + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_HOLD_TIMER */ | |
5d6ae479 NA |
153 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
154 | + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MULTICAST_ROUTER */ | |
155 | #endif | |
5af48b59 | 156 | + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_GROUP_FWD_MASK */ |
25c71c75 | 157 | + 0; |
158 | } | |
159 | ||
fed0a159 | 160 | static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask) |
339bf98f TG |
161 | { |
162 | return NLMSG_ALIGN(sizeof(struct ifinfomsg)) | |
25c71c75 | 163 | + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */ |
164 | + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */ | |
165 | + nla_total_size(4) /* IFLA_MASTER */ | |
166 | + nla_total_size(4) /* IFLA_MTU */ | |
167 | + nla_total_size(4) /* IFLA_LINK */ | |
168 | + nla_total_size(1) /* IFLA_OPERSTATE */ | |
b7853d73 | 169 | + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */ |
fed0a159 RP |
170 | + nla_total_size(br_get_link_af_size_filtered(dev, |
171 | filter_mask)); /* IFLA_AF_SPEC */ | |
25c71c75 | 172 | } |
173 | ||
174 | static int br_port_fill_attrs(struct sk_buff *skb, | |
175 | const struct net_bridge_port *p) | |
176 | { | |
177 | u8 mode = !!(p->flags & BR_HAIRPIN_MODE); | |
61c0a9a8 | 178 | u64 timerval; |
25c71c75 | 179 | |
180 | if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) || | |
181 | nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) || | |
182 | nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) || | |
a2e01a65 | 183 | nla_put_u8(skb, IFLA_BRPORT_MODE, mode) || |
1007dd1a | 184 | nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) || |
b6cb5ac8 NA |
185 | nla_put_u8(skb, IFLA_BRPORT_PROTECT, |
186 | !!(p->flags & BR_ROOT_BLOCK)) || | |
187 | nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, | |
188 | !!(p->flags & BR_MULTICAST_FAST_LEAVE)) || | |
6db6f0ea FF |
189 | nla_put_u8(skb, IFLA_BRPORT_MCAST_TO_UCAST, |
190 | !!(p->flags & BR_MULTICAST_TO_UNICAST)) || | |
867a5943 | 191 | nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) || |
b6cb5ac8 NA |
192 | nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD, |
193 | !!(p->flags & BR_FLOOD)) || | |
194 | nla_put_u8(skb, IFLA_BRPORT_MCAST_FLOOD, | |
195 | !!(p->flags & BR_MCAST_FLOOD)) || | |
99f906e9 MM |
196 | nla_put_u8(skb, IFLA_BRPORT_BCAST_FLOOD, |
197 | !!(p->flags & BR_BCAST_FLOOD)) || | |
842a9ae0 JM |
198 | nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) || |
199 | nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI, | |
4ebc7660 NA |
200 | !!(p->flags & BR_PROXYARP_WIFI)) || |
201 | nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id), | |
80df9a26 NA |
202 | &p->designated_root) || |
203 | nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id), | |
96f94e7f NA |
204 | &p->designated_bridge) || |
205 | nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) || | |
42d452c4 NA |
206 | nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost) || |
207 | nla_put_u16(skb, IFLA_BRPORT_ID, p->port_id) || | |
e08e838a NA |
208 | nla_put_u16(skb, IFLA_BRPORT_NO, p->port_no) || |
209 | nla_put_u8(skb, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK, | |
210 | p->topology_change_ack) || | |
efa5356b RP |
211 | nla_put_u8(skb, IFLA_BRPORT_CONFIG_PENDING, p->config_pending) || |
212 | nla_put_u8(skb, IFLA_BRPORT_VLAN_TUNNEL, !!(p->flags & | |
5af48b59 | 213 | BR_VLAN_TUNNEL)) || |
821f1b21 RP |
214 | nla_put_u16(skb, IFLA_BRPORT_GROUP_FWD_MASK, p->group_fwd_mask) || |
215 | nla_put_u8(skb, IFLA_BRPORT_NEIGH_SUPPRESS, | |
216 | !!(p->flags & BR_NEIGH_SUPPRESS))) | |
25c71c75 | 217 | return -EMSGSIZE; |
218 | ||
61c0a9a8 | 219 | timerval = br_timer_value(&p->message_age_timer); |
12a0faa3 ND |
220 | if (nla_put_u64_64bit(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval, |
221 | IFLA_BRPORT_PAD)) | |
61c0a9a8 NA |
222 | return -EMSGSIZE; |
223 | timerval = br_timer_value(&p->forward_delay_timer); | |
12a0faa3 ND |
224 | if (nla_put_u64_64bit(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval, |
225 | IFLA_BRPORT_PAD)) | |
61c0a9a8 NA |
226 | return -EMSGSIZE; |
227 | timerval = br_timer_value(&p->hold_timer); | |
12a0faa3 ND |
228 | if (nla_put_u64_64bit(skb, IFLA_BRPORT_HOLD_TIMER, timerval, |
229 | IFLA_BRPORT_PAD)) | |
61c0a9a8 NA |
230 | return -EMSGSIZE; |
231 | ||
5d6ae479 NA |
232 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
233 | if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER, | |
234 | p->multicast_router)) | |
235 | return -EMSGSIZE; | |
236 | #endif | |
237 | ||
25c71c75 | 238 | return 0; |
339bf98f TG |
239 | } |
240 | ||
36cd0ffb RP |
241 | static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start, |
242 | u16 vid_end, u16 flags) | |
243 | { | |
244 | struct bridge_vlan_info vinfo; | |
245 | ||
246 | if ((vid_end - vid_start) > 0) { | |
247 | /* add range to skb */ | |
248 | vinfo.vid = vid_start; | |
249 | vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN; | |
250 | if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO, | |
251 | sizeof(vinfo), &vinfo)) | |
252 | goto nla_put_failure; | |
253 | ||
36cd0ffb RP |
254 | vinfo.vid = vid_end; |
255 | vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END; | |
256 | if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO, | |
257 | sizeof(vinfo), &vinfo)) | |
258 | goto nla_put_failure; | |
259 | } else { | |
260 | vinfo.vid = vid_start; | |
261 | vinfo.flags = flags; | |
262 | if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO, | |
263 | sizeof(vinfo), &vinfo)) | |
264 | goto nla_put_failure; | |
265 | } | |
266 | ||
267 | return 0; | |
268 | ||
269 | nla_put_failure: | |
270 | return -EMSGSIZE; | |
271 | } | |
272 | ||
273 | static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb, | |
77751ee8 | 274 | struct net_bridge_vlan_group *vg) |
36cd0ffb | 275 | { |
2594e906 NA |
276 | struct net_bridge_vlan *v; |
277 | u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0; | |
77751ee8 | 278 | u16 flags, pvid; |
36cd0ffb RP |
279 | int err = 0; |
280 | ||
281 | /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan | |
282 | * and mark vlan info with begin and end flags | |
283 | * if vlaninfo represents a range | |
284 | */ | |
77751ee8 | 285 | pvid = br_get_pvid(vg); |
e9c953ef | 286 | list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { |
36cd0ffb | 287 | flags = 0; |
2594e906 NA |
288 | if (!br_vlan_should_use(v)) |
289 | continue; | |
290 | if (v->vid == pvid) | |
36cd0ffb RP |
291 | flags |= BRIDGE_VLAN_INFO_PVID; |
292 | ||
2594e906 | 293 | if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED) |
36cd0ffb RP |
294 | flags |= BRIDGE_VLAN_INFO_UNTAGGED; |
295 | ||
296 | if (vid_range_start == 0) { | |
297 | goto initvars; | |
2594e906 | 298 | } else if ((v->vid - vid_range_end) == 1 && |
36cd0ffb | 299 | flags == vid_range_flags) { |
2594e906 | 300 | vid_range_end = v->vid; |
36cd0ffb RP |
301 | continue; |
302 | } else { | |
303 | err = br_fill_ifvlaninfo_range(skb, vid_range_start, | |
304 | vid_range_end, | |
305 | vid_range_flags); | |
306 | if (err) | |
307 | return err; | |
308 | } | |
309 | ||
310 | initvars: | |
2594e906 NA |
311 | vid_range_start = v->vid; |
312 | vid_range_end = v->vid; | |
36cd0ffb RP |
313 | vid_range_flags = flags; |
314 | } | |
315 | ||
0fe6de49 RP |
316 | if (vid_range_start != 0) { |
317 | /* Call it once more to send any left over vlans */ | |
318 | err = br_fill_ifvlaninfo_range(skb, vid_range_start, | |
319 | vid_range_end, | |
320 | vid_range_flags); | |
321 | if (err) | |
322 | return err; | |
323 | } | |
36cd0ffb RP |
324 | |
325 | return 0; | |
326 | } | |
327 | ||
328 | static int br_fill_ifvlaninfo(struct sk_buff *skb, | |
77751ee8 | 329 | struct net_bridge_vlan_group *vg) |
36cd0ffb RP |
330 | { |
331 | struct bridge_vlan_info vinfo; | |
2594e906 | 332 | struct net_bridge_vlan *v; |
77751ee8 | 333 | u16 pvid; |
36cd0ffb | 334 | |
77751ee8 | 335 | pvid = br_get_pvid(vg); |
e9c953ef | 336 | list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { |
2594e906 NA |
337 | if (!br_vlan_should_use(v)) |
338 | continue; | |
339 | ||
340 | vinfo.vid = v->vid; | |
36cd0ffb | 341 | vinfo.flags = 0; |
2594e906 | 342 | if (v->vid == pvid) |
36cd0ffb RP |
343 | vinfo.flags |= BRIDGE_VLAN_INFO_PVID; |
344 | ||
2594e906 | 345 | if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED) |
36cd0ffb RP |
346 | vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED; |
347 | ||
348 | if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO, | |
349 | sizeof(vinfo), &vinfo)) | |
350 | goto nla_put_failure; | |
351 | } | |
352 | ||
353 | return 0; | |
354 | ||
355 | nla_put_failure: | |
356 | return -EMSGSIZE; | |
357 | } | |
358 | ||
11dc1f36 SH |
359 | /* |
360 | * Create one netlink message for one interface | |
361 | * Contains port and master info as well as carrier and bridge state. | |
362 | */ | |
6cbdceeb | 363 | static int br_fill_ifinfo(struct sk_buff *skb, |
92899063 | 364 | const struct net_bridge_port *port, |
6cbdceeb VY |
365 | u32 pid, u32 seq, int event, unsigned int flags, |
366 | u32 filter_mask, const struct net_device *dev) | |
11dc1f36 | 367 | { |
92899063 | 368 | u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN; |
2594e906 | 369 | struct net_bridge *br; |
74685962 | 370 | struct ifinfomsg *hdr; |
11dc1f36 | 371 | struct nlmsghdr *nlh; |
11dc1f36 | 372 | |
6cbdceeb VY |
373 | if (port) |
374 | br = port->br; | |
375 | else | |
376 | br = netdev_priv(dev); | |
377 | ||
28a16c97 | 378 | br_debug(br, "br_fill_info event %d port %s master %s\n", |
379 | event, dev->name, br->dev->name); | |
11dc1f36 | 380 | |
74685962 TG |
381 | nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags); |
382 | if (nlh == NULL) | |
26932566 | 383 | return -EMSGSIZE; |
11dc1f36 | 384 | |
74685962 TG |
385 | hdr = nlmsg_data(nlh); |
386 | hdr->ifi_family = AF_BRIDGE; | |
387 | hdr->__ifi_pad = 0; | |
388 | hdr->ifi_type = dev->type; | |
389 | hdr->ifi_index = dev->ifindex; | |
390 | hdr->ifi_flags = dev_get_flags(dev); | |
391 | hdr->ifi_change = 0; | |
11dc1f36 | 392 | |
2eb812e6 DM |
393 | if (nla_put_string(skb, IFLA_IFNAME, dev->name) || |
394 | nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) || | |
395 | nla_put_u32(skb, IFLA_MTU, dev->mtu) || | |
396 | nla_put_u8(skb, IFLA_OPERSTATE, operstate) || | |
397 | (dev->addr_len && | |
398 | nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) || | |
a54acb3a ND |
399 | (dev->ifindex != dev_get_iflink(dev) && |
400 | nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev)))) | |
2eb812e6 | 401 | goto nla_put_failure; |
25c71c75 | 402 | |
6cbdceeb | 403 | if (event == RTM_NEWLINK && port) { |
25c71c75 | 404 | struct nlattr *nest |
405 | = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED); | |
406 | ||
407 | if (nest == NULL || br_port_fill_attrs(skb, port) < 0) | |
408 | goto nla_put_failure; | |
409 | nla_nest_end(skb, nest); | |
410 | } | |
411 | ||
6cbdceeb | 412 | /* Check if the VID information is requested */ |
36cd0ffb RP |
413 | if ((filter_mask & RTEXT_FILTER_BRVLAN) || |
414 | (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) { | |
2594e906 | 415 | struct net_bridge_vlan_group *vg; |
36cd0ffb RP |
416 | struct nlattr *af; |
417 | int err; | |
6cbdceeb | 418 | |
e9c953ef NA |
419 | /* RCU needed because of the VLAN locking rules (rcu || rtnl) */ |
420 | rcu_read_lock(); | |
77751ee8 | 421 | if (port) |
e9c953ef | 422 | vg = nbp_vlan_group_rcu(port); |
77751ee8 | 423 | else |
e9c953ef | 424 | vg = br_vlan_group_rcu(br); |
6cbdceeb | 425 | |
e9c953ef NA |
426 | if (!vg || !vg->num_vlans) { |
427 | rcu_read_unlock(); | |
6cbdceeb | 428 | goto done; |
e9c953ef | 429 | } |
6cbdceeb | 430 | af = nla_nest_start(skb, IFLA_AF_SPEC); |
e9c953ef NA |
431 | if (!af) { |
432 | rcu_read_unlock(); | |
6cbdceeb | 433 | goto nla_put_failure; |
e9c953ef | 434 | } |
36cd0ffb | 435 | if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED) |
77751ee8 | 436 | err = br_fill_ifvlaninfo_compressed(skb, vg); |
36cd0ffb | 437 | else |
77751ee8 | 438 | err = br_fill_ifvlaninfo(skb, vg); |
efa5356b RP |
439 | |
440 | if (port && (port->flags & BR_VLAN_TUNNEL)) | |
441 | err = br_fill_vlan_tunnel_info(skb, vg); | |
e9c953ef | 442 | rcu_read_unlock(); |
36cd0ffb RP |
443 | if (err) |
444 | goto nla_put_failure; | |
6cbdceeb VY |
445 | nla_nest_end(skb, af); |
446 | } | |
447 | ||
448 | done: | |
053c095a JB |
449 | nlmsg_end(skb, nlh); |
450 | return 0; | |
11dc1f36 | 451 | |
74685962 | 452 | nla_put_failure: |
26932566 PM |
453 | nlmsg_cancel(skb, nlh); |
454 | return -EMSGSIZE; | |
11dc1f36 SH |
455 | } |
456 | ||
92899063 NA |
457 | /* Notify listeners of a change in bridge or port information */ |
458 | void br_ifinfo_notify(int event, const struct net_bridge *br, | |
459 | const struct net_bridge_port *port) | |
11dc1f36 | 460 | { |
92899063 NA |
461 | u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED; |
462 | struct net_device *dev; | |
11dc1f36 | 463 | struct sk_buff *skb; |
280a306c | 464 | int err = -ENOBUFS; |
92899063 NA |
465 | struct net *net; |
466 | u16 port_no = 0; | |
11dc1f36 | 467 | |
92899063 | 468 | if (WARN_ON(!port && !br)) |
407af329 VY |
469 | return; |
470 | ||
92899063 NA |
471 | if (port) { |
472 | dev = port->dev; | |
473 | br = port->br; | |
474 | port_no = port->port_no; | |
475 | } else { | |
476 | dev = br->dev; | |
477 | } | |
478 | ||
479 | net = dev_net(dev); | |
480 | br_debug(br, "port %u(%s) event %d\n", port_no, dev->name, event); | |
28a16c97 | 481 | |
92899063 | 482 | skb = nlmsg_new(br_nlmsg_size(dev, filter), GFP_ATOMIC); |
280a306c TG |
483 | if (skb == NULL) |
484 | goto errout; | |
485 | ||
92899063 | 486 | err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, dev); |
26932566 PM |
487 | if (err < 0) { |
488 | /* -EMSGSIZE implies BUG in br_nlmsg_size() */ | |
489 | WARN_ON(err == -EMSGSIZE); | |
490 | kfree_skb(skb); | |
491 | goto errout; | |
492 | } | |
1ce85fe4 PNA |
493 | rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC); |
494 | return; | |
280a306c | 495 | errout: |
87e823b3 | 496 | rtnl_set_sk_err(net, RTNLGRP_LINK, err); |
11dc1f36 SH |
497 | } |
498 | ||
499 | /* | |
500 | * Dump information about all ports, in response to GETLINK | |
501 | */ | |
e5a55a89 | 502 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
46c264da | 503 | struct net_device *dev, u32 filter_mask, int nlflags) |
11dc1f36 | 504 | { |
1fb1754a | 505 | struct net_bridge_port *port = br_port_get_rtnl(dev); |
e5a55a89 | 506 | |
36cd0ffb RP |
507 | if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) && |
508 | !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) | |
1b846f92 | 509 | return 0; |
11dc1f36 | 510 | |
46c264da | 511 | return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags, |
1b846f92 | 512 | filter_mask, dev); |
11dc1f36 SH |
513 | } |
514 | ||
bdced7ef | 515 | static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p, |
e19b42a1 | 516 | int cmd, struct bridge_vlan_info *vinfo, bool *changed) |
bdced7ef | 517 | { |
f418af63 | 518 | bool curr_change; |
bdced7ef RP |
519 | int err = 0; |
520 | ||
521 | switch (cmd) { | |
522 | case RTM_SETLINK: | |
523 | if (p) { | |
2594e906 NA |
524 | /* if the MASTER flag is set this will act on the global |
525 | * per-VLAN entry as well | |
526 | */ | |
f418af63 NA |
527 | err = nbp_vlan_add(p, vinfo->vid, vinfo->flags, |
528 | &curr_change); | |
bdced7ef | 529 | } else { |
2594e906 | 530 | vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY; |
f418af63 NA |
531 | err = br_vlan_add(br, vinfo->vid, vinfo->flags, |
532 | &curr_change); | |
bdced7ef | 533 | } |
f418af63 | 534 | if (curr_change) |
e19b42a1 | 535 | *changed = true; |
bdced7ef RP |
536 | break; |
537 | ||
538 | case RTM_DELLINK: | |
539 | if (p) { | |
e19b42a1 NA |
540 | if (!nbp_vlan_delete(p, vinfo->vid)) |
541 | *changed = true; | |
542 | ||
543 | if ((vinfo->flags & BRIDGE_VLAN_INFO_MASTER) && | |
544 | !br_vlan_delete(p->br, vinfo->vid)) | |
545 | *changed = true; | |
546 | } else if (!br_vlan_delete(br, vinfo->vid)) { | |
547 | *changed = true; | |
bdced7ef RP |
548 | } |
549 | break; | |
550 | } | |
551 | ||
552 | return err; | |
553 | } | |
407af329 | 554 | |
efa5356b RP |
555 | static int br_process_vlan_info(struct net_bridge *br, |
556 | struct net_bridge_port *p, int cmd, | |
557 | struct bridge_vlan_info *vinfo_curr, | |
e19b42a1 NA |
558 | struct bridge_vlan_info **vinfo_last, |
559 | bool *changed) | |
efa5356b RP |
560 | { |
561 | if (!vinfo_curr->vid || vinfo_curr->vid >= VLAN_VID_MASK) | |
562 | return -EINVAL; | |
563 | ||
564 | if (vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { | |
565 | /* check if we are already processing a range */ | |
566 | if (*vinfo_last) | |
567 | return -EINVAL; | |
568 | *vinfo_last = vinfo_curr; | |
569 | /* don't allow range of pvids */ | |
570 | if ((*vinfo_last)->flags & BRIDGE_VLAN_INFO_PVID) | |
571 | return -EINVAL; | |
572 | return 0; | |
573 | } | |
574 | ||
575 | if (*vinfo_last) { | |
576 | struct bridge_vlan_info tmp_vinfo; | |
577 | int v, err; | |
578 | ||
579 | if (!(vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_END)) | |
580 | return -EINVAL; | |
581 | ||
582 | if (vinfo_curr->vid <= (*vinfo_last)->vid) | |
583 | return -EINVAL; | |
584 | ||
585 | memcpy(&tmp_vinfo, *vinfo_last, | |
586 | sizeof(struct bridge_vlan_info)); | |
587 | for (v = (*vinfo_last)->vid; v <= vinfo_curr->vid; v++) { | |
588 | tmp_vinfo.vid = v; | |
e19b42a1 | 589 | err = br_vlan_info(br, p, cmd, &tmp_vinfo, changed); |
efa5356b RP |
590 | if (err) |
591 | break; | |
592 | } | |
593 | *vinfo_last = NULL; | |
594 | ||
66c54517 | 595 | return err; |
efa5356b RP |
596 | } |
597 | ||
e19b42a1 | 598 | return br_vlan_info(br, p, cmd, vinfo_curr, changed); |
efa5356b RP |
599 | } |
600 | ||
407af329 VY |
601 | static int br_afspec(struct net_bridge *br, |
602 | struct net_bridge_port *p, | |
603 | struct nlattr *af_spec, | |
e19b42a1 | 604 | int cmd, bool *changed) |
407af329 | 605 | { |
efa5356b RP |
606 | struct bridge_vlan_info *vinfo_curr = NULL; |
607 | struct bridge_vlan_info *vinfo_last = NULL; | |
bdced7ef | 608 | struct nlattr *attr; |
efa5356b RP |
609 | struct vtunnel_info tinfo_last = {}; |
610 | struct vtunnel_info tinfo_curr = {}; | |
611 | int err = 0, rem; | |
407af329 | 612 | |
bdced7ef | 613 | nla_for_each_nested(attr, af_spec, rem) { |
efa5356b RP |
614 | err = 0; |
615 | switch (nla_type(attr)) { | |
616 | case IFLA_BRIDGE_VLAN_TUNNEL_INFO: | |
1020ce31 | 617 | if (!p || !(p->flags & BR_VLAN_TUNNEL)) |
bdced7ef | 618 | return -EINVAL; |
efa5356b RP |
619 | err = br_parse_vlan_tunnel_info(attr, &tinfo_curr); |
620 | if (err) | |
621 | return err; | |
622 | err = br_process_vlan_tunnel_info(br, p, cmd, | |
623 | &tinfo_curr, | |
e19b42a1 NA |
624 | &tinfo_last, |
625 | changed); | |
efa5356b RP |
626 | if (err) |
627 | return err; | |
628 | break; | |
629 | case IFLA_BRIDGE_VLAN_INFO: | |
630 | if (nla_len(attr) != sizeof(struct bridge_vlan_info)) | |
6623c60d | 631 | return -EINVAL; |
efa5356b RP |
632 | vinfo_curr = nla_data(attr); |
633 | err = br_process_vlan_info(br, p, cmd, vinfo_curr, | |
e19b42a1 | 634 | &vinfo_last, changed); |
efa5356b RP |
635 | if (err) |
636 | return err; | |
637 | break; | |
bdced7ef | 638 | } |
407af329 VY |
639 | } |
640 | ||
641 | return err; | |
642 | } | |
643 | ||
3ac636b8 | 644 | static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = { |
25c71c75 | 645 | [IFLA_BRPORT_STATE] = { .type = NLA_U8 }, |
646 | [IFLA_BRPORT_COST] = { .type = NLA_U32 }, | |
647 | [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 }, | |
648 | [IFLA_BRPORT_MODE] = { .type = NLA_U8 }, | |
a2e01a65 | 649 | [IFLA_BRPORT_GUARD] = { .type = NLA_U8 }, |
1007dd1a | 650 | [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 }, |
6f705d8c | 651 | [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 }, |
9ba18891 | 652 | [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 }, |
867a5943 | 653 | [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 }, |
355b9f9d | 654 | [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 }, |
786c2077 | 655 | [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 }, |
5d6ae479 | 656 | [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 }, |
6db6f0ea | 657 | [IFLA_BRPORT_MCAST_TO_UCAST] = { .type = NLA_U8 }, |
9051247d TK |
658 | [IFLA_BRPORT_MCAST_FLOOD] = { .type = NLA_U8 }, |
659 | [IFLA_BRPORT_BCAST_FLOOD] = { .type = NLA_U8 }, | |
fbec443b | 660 | [IFLA_BRPORT_VLAN_TUNNEL] = { .type = NLA_U8 }, |
5af48b59 | 661 | [IFLA_BRPORT_GROUP_FWD_MASK] = { .type = NLA_U16 }, |
1a3fbd3f | 662 | [IFLA_BRPORT_NEIGH_SUPPRESS] = { .type = NLA_U8 }, |
25c71c75 | 663 | }; |
664 | ||
665 | /* Change the state of the port and notify spanning tree */ | |
666 | static int br_set_port_state(struct net_bridge_port *p, u8 state) | |
667 | { | |
668 | if (state > BR_STATE_BLOCKING) | |
669 | return -EINVAL; | |
670 | ||
671 | /* if kernel STP is running, don't allow changes */ | |
672 | if (p->br->stp_enabled == BR_KERNEL_STP) | |
673 | return -EBUSY; | |
674 | ||
576eb625 | 675 | /* if device is not up, change is not allowed |
676 | * if link is not present, only allowable state is disabled | |
677 | */ | |
25c71c75 | 678 | if (!netif_running(p->dev) || |
576eb625 | 679 | (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED)) |
25c71c75 | 680 | return -ENETDOWN; |
681 | ||
775dd692 | 682 | br_set_state(p, state); |
25c71c75 | 683 | br_port_state_selection(p->br); |
684 | return 0; | |
685 | } | |
686 | ||
687 | /* Set/clear or port flags based on attribute */ | |
3922285d AS |
688 | static int br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[], |
689 | int attrtype, unsigned long mask) | |
25c71c75 | 690 | { |
3922285d AS |
691 | unsigned long flags; |
692 | int err; | |
693 | ||
694 | if (!tb[attrtype]) | |
695 | return 0; | |
696 | ||
697 | if (nla_get_u8(tb[attrtype])) | |
698 | flags = p->flags | mask; | |
699 | else | |
700 | flags = p->flags & ~mask; | |
701 | ||
702 | err = br_switchdev_set_port_flag(p, flags, mask); | |
703 | if (err) | |
704 | return err; | |
705 | ||
706 | p->flags = flags; | |
707 | return 0; | |
25c71c75 | 708 | } |
709 | ||
710 | /* Process bridge protocol info on port */ | |
711 | static int br_setport(struct net_bridge_port *p, struct nlattr *tb[]) | |
712 | { | |
e028e4b8 | 713 | unsigned long old_flags = p->flags; |
efa5356b RP |
714 | bool br_vlan_tunnel_old = false; |
715 | int err; | |
25c71c75 | 716 | |
3922285d AS |
717 | err = br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE); |
718 | if (err) | |
719 | return err; | |
720 | ||
721 | err = br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD); | |
722 | if (err) | |
723 | return err; | |
724 | ||
725 | err = br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE); | |
726 | if (err) | |
727 | return err; | |
728 | ||
729 | err = br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK); | |
730 | if (err) | |
731 | return err; | |
732 | ||
733 | err = br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING); | |
734 | if (err) | |
735 | return err; | |
736 | ||
737 | err = br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD); | |
738 | if (err) | |
739 | return err; | |
740 | ||
741 | err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD); | |
742 | if (err) | |
743 | return err; | |
744 | ||
745 | err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST, BR_MULTICAST_TO_UNICAST); | |
746 | if (err) | |
747 | return err; | |
748 | ||
749 | err = br_set_port_flag(p, tb, IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD); | |
750 | if (err) | |
751 | return err; | |
752 | ||
753 | err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP); | |
754 | if (err) | |
755 | return err; | |
756 | ||
757 | err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI); | |
758 | if (err) | |
759 | return err; | |
25c71c75 | 760 | |
efa5356b | 761 | br_vlan_tunnel_old = (p->flags & BR_VLAN_TUNNEL) ? true : false; |
3922285d AS |
762 | err = br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL); |
763 | if (err) | |
764 | return err; | |
765 | ||
efa5356b RP |
766 | if (br_vlan_tunnel_old && !(p->flags & BR_VLAN_TUNNEL)) |
767 | nbp_vlan_tunnel_info_flush(p); | |
768 | ||
25c71c75 | 769 | if (tb[IFLA_BRPORT_COST]) { |
770 | err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST])); | |
771 | if (err) | |
772 | return err; | |
773 | } | |
774 | ||
775 | if (tb[IFLA_BRPORT_PRIORITY]) { | |
776 | err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY])); | |
777 | if (err) | |
778 | return err; | |
779 | } | |
780 | ||
781 | if (tb[IFLA_BRPORT_STATE]) { | |
782 | err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE])); | |
783 | if (err) | |
784 | return err; | |
785 | } | |
e028e4b8 | 786 | |
9b0c6e4d NA |
787 | if (tb[IFLA_BRPORT_FLUSH]) |
788 | br_fdb_delete_by_port(p->br, p, 0, 0); | |
789 | ||
5d6ae479 NA |
790 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
791 | if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) { | |
792 | u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]); | |
793 | ||
794 | err = br_multicast_set_port_router(p, mcast_router); | |
795 | if (err) | |
796 | return err; | |
797 | } | |
798 | #endif | |
5af48b59 NA |
799 | |
800 | if (tb[IFLA_BRPORT_GROUP_FWD_MASK]) { | |
801 | u16 fwd_mask = nla_get_u16(tb[IFLA_BRPORT_GROUP_FWD_MASK]); | |
802 | ||
803 | if (fwd_mask & BR_GROUPFWD_MACPAUSE) | |
804 | return -EINVAL; | |
805 | p->group_fwd_mask = fwd_mask; | |
806 | } | |
807 | ||
821f1b21 RP |
808 | err = br_set_port_flag(p, tb, IFLA_BRPORT_NEIGH_SUPPRESS, |
809 | BR_NEIGH_SUPPRESS); | |
810 | if (err) | |
811 | return err; | |
812 | ||
e028e4b8 | 813 | br_port_flags_change(p, old_flags ^ p->flags); |
25c71c75 | 814 | return 0; |
815 | } | |
816 | ||
817 | /* Change state and parameters on port. */ | |
add511b3 | 818 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags) |
11dc1f36 | 819 | { |
92899063 NA |
820 | struct net_bridge *br = (struct net_bridge *)netdev_priv(dev); |
821 | struct nlattr *tb[IFLA_BRPORT_MAX + 1]; | |
822 | struct net_bridge_port *p; | |
74685962 | 823 | struct nlattr *protinfo; |
407af329 | 824 | struct nlattr *afspec; |
e19b42a1 | 825 | bool changed = false; |
41c498b9 | 826 | int err = 0; |
11dc1f36 | 827 | |
c60ee67f H |
828 | protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO); |
829 | afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); | |
407af329 | 830 | if (!protinfo && !afspec) |
25c71c75 | 831 | return 0; |
11dc1f36 | 832 | |
ec1e5610 | 833 | p = br_port_get_rtnl(dev); |
407af329 | 834 | /* We want to accept dev as bridge itself if the AF_SPEC |
8e3bff96 | 835 | * is set to see if someone is setting vlan info on the bridge |
407af329 | 836 | */ |
7b99a993 | 837 | if (!p && !afspec) |
b5ed54e9 | 838 | return -EINVAL; |
11dc1f36 | 839 | |
407af329 VY |
840 | if (p && protinfo) { |
841 | if (protinfo->nla_type & NLA_F_NESTED) { | |
fceb6435 JB |
842 | err = nla_parse_nested(tb, IFLA_BRPORT_MAX, protinfo, |
843 | br_port_policy, NULL); | |
407af329 VY |
844 | if (err) |
845 | return err; | |
846 | ||
847 | spin_lock_bh(&p->br->lock); | |
848 | err = br_setport(p, tb); | |
849 | spin_unlock_bh(&p->br->lock); | |
850 | } else { | |
8e3bff96 | 851 | /* Binary compatibility with old RSTP */ |
407af329 VY |
852 | if (nla_len(protinfo) < sizeof(u8)) |
853 | return -EINVAL; | |
854 | ||
855 | spin_lock_bh(&p->br->lock); | |
856 | err = br_set_port_state(p, nla_get_u8(protinfo)); | |
857 | spin_unlock_bh(&p->br->lock); | |
858 | } | |
25c71c75 | 859 | if (err) |
407af329 | 860 | goto out; |
e19b42a1 | 861 | changed = true; |
407af329 | 862 | } |
11dc1f36 | 863 | |
92899063 NA |
864 | if (afspec) |
865 | err = br_afspec(br, p, afspec, RTM_SETLINK, &changed); | |
b03b6dd5 | 866 | |
e19b42a1 | 867 | if (changed) |
92899063 | 868 | br_ifinfo_notify(RTM_NEWLINK, br, p); |
407af329 | 869 | out: |
25c71c75 | 870 | return err; |
11dc1f36 SH |
871 | } |
872 | ||
407af329 | 873 | /* Delete port information */ |
add511b3 | 874 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags) |
407af329 | 875 | { |
92899063 | 876 | struct net_bridge *br = (struct net_bridge *)netdev_priv(dev); |
407af329 | 877 | struct net_bridge_port *p; |
92899063 | 878 | struct nlattr *afspec; |
e19b42a1 | 879 | bool changed = false; |
8508025c | 880 | int err = 0; |
407af329 | 881 | |
c60ee67f | 882 | afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); |
407af329 VY |
883 | if (!afspec) |
884 | return 0; | |
885 | ||
886 | p = br_port_get_rtnl(dev); | |
887 | /* We want to accept dev as bridge itself as well */ | |
888 | if (!p && !(dev->priv_flags & IFF_EBRIDGE)) | |
889 | return -EINVAL; | |
890 | ||
92899063 | 891 | err = br_afspec(br, p, afspec, RTM_DELLINK, &changed); |
e19b42a1 | 892 | if (changed) |
02dba438 RP |
893 | /* Send RTM_NEWLINK because userspace |
894 | * expects RTM_NEWLINK for vlan dels | |
895 | */ | |
92899063 | 896 | br_ifinfo_notify(RTM_NEWLINK, br, p); |
407af329 VY |
897 | |
898 | return err; | |
899 | } | |
a8b8a889 MS |
900 | |
901 | static int br_validate(struct nlattr *tb[], struct nlattr *data[], | |
902 | struct netlink_ext_ack *extack) | |
bb900b27 | 903 | { |
904 | if (tb[IFLA_ADDRESS]) { | |
905 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
906 | return -EINVAL; | |
907 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
908 | return -EADDRNOTAVAIL; | |
909 | } | |
910 | ||
d2d427b3 TM |
911 | if (!data) |
912 | return 0; | |
913 | ||
914 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
915 | if (data[IFLA_BR_VLAN_PROTOCOL]) { | |
916 | switch (nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])) { | |
917 | case htons(ETH_P_8021Q): | |
918 | case htons(ETH_P_8021AD): | |
919 | break; | |
920 | default: | |
921 | return -EPROTONOSUPPORT; | |
922 | } | |
923 | } | |
a2858602 TJ |
924 | |
925 | if (data[IFLA_BR_VLAN_DEFAULT_PVID]) { | |
926 | __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]); | |
927 | ||
928 | if (defpvid >= VLAN_VID_MASK) | |
929 | return -EINVAL; | |
930 | } | |
d2d427b3 TM |
931 | #endif |
932 | ||
bb900b27 | 933 | return 0; |
934 | } | |
935 | ||
3ac636b8 JP |
936 | static int br_port_slave_changelink(struct net_device *brdev, |
937 | struct net_device *dev, | |
938 | struct nlattr *tb[], | |
17dd0ec4 MS |
939 | struct nlattr *data[], |
940 | struct netlink_ext_ack *extack) | |
3ac636b8 | 941 | { |
963ad948 NA |
942 | struct net_bridge *br = netdev_priv(brdev); |
943 | int ret; | |
944 | ||
3ac636b8 JP |
945 | if (!data) |
946 | return 0; | |
963ad948 NA |
947 | |
948 | spin_lock_bh(&br->lock); | |
949 | ret = br_setport(br_port_get_rtnl(dev), data); | |
950 | spin_unlock_bh(&br->lock); | |
951 | ||
952 | return ret; | |
3ac636b8 JP |
953 | } |
954 | ||
ced8283f JP |
955 | static int br_port_fill_slave_info(struct sk_buff *skb, |
956 | const struct net_device *brdev, | |
957 | const struct net_device *dev) | |
958 | { | |
959 | return br_port_fill_attrs(skb, br_port_get_rtnl(dev)); | |
960 | } | |
961 | ||
962 | static size_t br_port_get_slave_size(const struct net_device *brdev, | |
963 | const struct net_device *dev) | |
964 | { | |
965 | return br_port_info_size(); | |
966 | } | |
967 | ||
13323516 JP |
968 | static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = { |
969 | [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 }, | |
970 | [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 }, | |
971 | [IFLA_BR_MAX_AGE] = { .type = NLA_U32 }, | |
af615762 JT |
972 | [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 }, |
973 | [IFLA_BR_STP_STATE] = { .type = NLA_U32 }, | |
974 | [IFLA_BR_PRIORITY] = { .type = NLA_U16 }, | |
a7854037 | 975 | [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 }, |
d2d427b3 | 976 | [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 }, |
7910228b | 977 | [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 }, |
111189ab NA |
978 | [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY, |
979 | .len = ETH_ALEN }, | |
a9a6bc70 | 980 | [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 }, |
89126327 | 981 | [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 }, |
295141d9 | 982 | [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 }, |
ba062d7c | 983 | [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 }, |
431db3c0 | 984 | [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 }, |
858079fd | 985 | [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 }, |
79b859f5 | 986 | [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 }, |
b89e6bab | 987 | [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 }, |
7e4df51e NA |
988 | [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 }, |
989 | [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 }, | |
990 | [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 }, | |
991 | [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 }, | |
992 | [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 }, | |
993 | [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 }, | |
93870cc0 NA |
994 | [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 }, |
995 | [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 }, | |
996 | [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 }, | |
0f963b75 | 997 | [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 }, |
6dada9b1 | 998 | [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 }, |
1080ab95 | 999 | [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 }, |
5e923585 | 1000 | [IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 }, |
aa2ae3e7 | 1001 | [IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 }, |
13323516 JP |
1002 | }; |
1003 | ||
1004 | static int br_changelink(struct net_device *brdev, struct nlattr *tb[], | |
ad744b22 MS |
1005 | struct nlattr *data[], |
1006 | struct netlink_ext_ack *extack) | |
13323516 JP |
1007 | { |
1008 | struct net_bridge *br = netdev_priv(brdev); | |
1009 | int err; | |
1010 | ||
1011 | if (!data) | |
1012 | return 0; | |
1013 | ||
1014 | if (data[IFLA_BR_FORWARD_DELAY]) { | |
1015 | err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY])); | |
1016 | if (err) | |
1017 | return err; | |
1018 | } | |
1019 | ||
1020 | if (data[IFLA_BR_HELLO_TIME]) { | |
1021 | err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME])); | |
1022 | if (err) | |
1023 | return err; | |
1024 | } | |
1025 | ||
1026 | if (data[IFLA_BR_MAX_AGE]) { | |
1027 | err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE])); | |
1028 | if (err) | |
1029 | return err; | |
1030 | } | |
1031 | ||
af615762 | 1032 | if (data[IFLA_BR_AGEING_TIME]) { |
c62987bb SF |
1033 | err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME])); |
1034 | if (err) | |
1035 | return err; | |
af615762 JT |
1036 | } |
1037 | ||
1038 | if (data[IFLA_BR_STP_STATE]) { | |
1039 | u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]); | |
1040 | ||
1041 | br_stp_set_enabled(br, stp_enabled); | |
1042 | } | |
1043 | ||
1044 | if (data[IFLA_BR_PRIORITY]) { | |
1045 | u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]); | |
1046 | ||
1047 | br_stp_set_bridge_priority(br, priority); | |
1048 | } | |
1049 | ||
a7854037 NA |
1050 | if (data[IFLA_BR_VLAN_FILTERING]) { |
1051 | u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]); | |
1052 | ||
1053 | err = __br_vlan_filter_toggle(br, vlan_filter); | |
1054 | if (err) | |
1055 | return err; | |
1056 | } | |
1057 | ||
d2d427b3 TM |
1058 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
1059 | if (data[IFLA_BR_VLAN_PROTOCOL]) { | |
1060 | __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]); | |
1061 | ||
1062 | err = __br_vlan_set_proto(br, vlan_proto); | |
1063 | if (err) | |
1064 | return err; | |
1065 | } | |
0f963b75 NA |
1066 | |
1067 | if (data[IFLA_BR_VLAN_DEFAULT_PVID]) { | |
1068 | __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]); | |
1069 | ||
1070 | err = __br_vlan_set_default_pvid(br, defpvid); | |
1071 | if (err) | |
1072 | return err; | |
1073 | } | |
6dada9b1 NA |
1074 | |
1075 | if (data[IFLA_BR_VLAN_STATS_ENABLED]) { | |
1076 | __u8 vlan_stats = nla_get_u8(data[IFLA_BR_VLAN_STATS_ENABLED]); | |
1077 | ||
1078 | err = br_vlan_set_stats(br, vlan_stats); | |
1079 | if (err) | |
1080 | return err; | |
1081 | } | |
d2d427b3 TM |
1082 | #endif |
1083 | ||
7910228b NA |
1084 | if (data[IFLA_BR_GROUP_FWD_MASK]) { |
1085 | u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]); | |
1086 | ||
1087 | if (fwd_mask & BR_GROUPFWD_RESTRICTED) | |
1088 | return -EINVAL; | |
1089 | br->group_fwd_mask = fwd_mask; | |
1090 | } | |
1091 | ||
111189ab NA |
1092 | if (data[IFLA_BR_GROUP_ADDR]) { |
1093 | u8 new_addr[ETH_ALEN]; | |
1094 | ||
1095 | if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN) | |
1096 | return -EINVAL; | |
1097 | memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN); | |
1098 | if (!is_link_local_ether_addr(new_addr)) | |
1099 | return -EINVAL; | |
1100 | if (new_addr[5] == 1 || /* 802.3x Pause address */ | |
1101 | new_addr[5] == 2 || /* 802.3ad Slow protocols */ | |
1102 | new_addr[5] == 3) /* 802.1X PAE address */ | |
1103 | return -EINVAL; | |
1104 | spin_lock_bh(&br->lock); | |
1105 | memcpy(br->group_addr, new_addr, sizeof(br->group_addr)); | |
1106 | spin_unlock_bh(&br->lock); | |
1107 | br->group_addr_set = true; | |
1108 | br_recalculate_fwd_mask(br); | |
1109 | } | |
1110 | ||
150217c6 NA |
1111 | if (data[IFLA_BR_FDB_FLUSH]) |
1112 | br_fdb_flush(br); | |
1113 | ||
a9a6bc70 NA |
1114 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
1115 | if (data[IFLA_BR_MCAST_ROUTER]) { | |
1116 | u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]); | |
1117 | ||
1118 | err = br_multicast_set_router(br, multicast_router); | |
1119 | if (err) | |
1120 | return err; | |
1121 | } | |
89126327 NA |
1122 | |
1123 | if (data[IFLA_BR_MCAST_SNOOPING]) { | |
1124 | u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]); | |
1125 | ||
1126 | err = br_multicast_toggle(br, mcast_snooping); | |
1127 | if (err) | |
1128 | return err; | |
1129 | } | |
295141d9 NA |
1130 | |
1131 | if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) { | |
1132 | u8 val; | |
1133 | ||
1134 | val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]); | |
1135 | br->multicast_query_use_ifaddr = !!val; | |
1136 | } | |
ba062d7c NA |
1137 | |
1138 | if (data[IFLA_BR_MCAST_QUERIER]) { | |
1139 | u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]); | |
1140 | ||
1141 | err = br_multicast_set_querier(br, mcast_querier); | |
1142 | if (err) | |
1143 | return err; | |
1144 | } | |
431db3c0 NA |
1145 | |
1146 | if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) { | |
1147 | u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]); | |
1148 | ||
1149 | br->hash_elasticity = val; | |
1150 | } | |
858079fd NA |
1151 | |
1152 | if (data[IFLA_BR_MCAST_HASH_MAX]) { | |
1153 | u32 hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]); | |
1154 | ||
1155 | err = br_multicast_set_hash_max(br, hash_max); | |
1156 | if (err) | |
1157 | return err; | |
1158 | } | |
79b859f5 NA |
1159 | |
1160 | if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) { | |
1161 | u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]); | |
1162 | ||
1163 | br->multicast_last_member_count = val; | |
1164 | } | |
b89e6bab NA |
1165 | |
1166 | if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) { | |
1167 | u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]); | |
1168 | ||
1169 | br->multicast_startup_query_count = val; | |
1170 | } | |
7e4df51e NA |
1171 | |
1172 | if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) { | |
1173 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]); | |
1174 | ||
1175 | br->multicast_last_member_interval = clock_t_to_jiffies(val); | |
1176 | } | |
1177 | ||
1178 | if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) { | |
1179 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]); | |
1180 | ||
1181 | br->multicast_membership_interval = clock_t_to_jiffies(val); | |
1182 | } | |
1183 | ||
1184 | if (data[IFLA_BR_MCAST_QUERIER_INTVL]) { | |
1185 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]); | |
1186 | ||
1187 | br->multicast_querier_interval = clock_t_to_jiffies(val); | |
1188 | } | |
1189 | ||
1190 | if (data[IFLA_BR_MCAST_QUERY_INTVL]) { | |
1191 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]); | |
1192 | ||
1193 | br->multicast_query_interval = clock_t_to_jiffies(val); | |
1194 | } | |
1195 | ||
1196 | if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) { | |
1197 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]); | |
1198 | ||
1199 | br->multicast_query_response_interval = clock_t_to_jiffies(val); | |
1200 | } | |
1201 | ||
1202 | if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) { | |
1203 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]); | |
1204 | ||
1205 | br->multicast_startup_query_interval = clock_t_to_jiffies(val); | |
1206 | } | |
1080ab95 NA |
1207 | |
1208 | if (data[IFLA_BR_MCAST_STATS_ENABLED]) { | |
1209 | __u8 mcast_stats; | |
1210 | ||
1211 | mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]); | |
1212 | br->multicast_stats_enabled = !!mcast_stats; | |
1213 | } | |
5e923585 NA |
1214 | |
1215 | if (data[IFLA_BR_MCAST_IGMP_VERSION]) { | |
1216 | __u8 igmp_version; | |
1217 | ||
1218 | igmp_version = nla_get_u8(data[IFLA_BR_MCAST_IGMP_VERSION]); | |
1219 | err = br_multicast_set_igmp_version(br, igmp_version); | |
1220 | if (err) | |
1221 | return err; | |
1222 | } | |
aa2ae3e7 NA |
1223 | |
1224 | #if IS_ENABLED(CONFIG_IPV6) | |
1225 | if (data[IFLA_BR_MCAST_MLD_VERSION]) { | |
1226 | __u8 mld_version; | |
1227 | ||
1228 | mld_version = nla_get_u8(data[IFLA_BR_MCAST_MLD_VERSION]); | |
1229 | err = br_multicast_set_mld_version(br, mld_version); | |
1230 | if (err) | |
1231 | return err; | |
1232 | } | |
1233 | #endif | |
a9a6bc70 | 1234 | #endif |
93870cc0 NA |
1235 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1236 | if (data[IFLA_BR_NF_CALL_IPTABLES]) { | |
1237 | u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]); | |
1238 | ||
1239 | br->nf_call_iptables = val ? true : false; | |
1240 | } | |
1241 | ||
1242 | if (data[IFLA_BR_NF_CALL_IP6TABLES]) { | |
1243 | u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]); | |
1244 | ||
1245 | br->nf_call_ip6tables = val ? true : false; | |
1246 | } | |
1247 | ||
1248 | if (data[IFLA_BR_NF_CALL_ARPTABLES]) { | |
1249 | u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]); | |
1250 | ||
1251 | br->nf_call_arptables = val ? true : false; | |
1252 | } | |
1253 | #endif | |
a9a6bc70 | 1254 | |
13323516 JP |
1255 | return 0; |
1256 | } | |
1257 | ||
b6677449 | 1258 | static int br_dev_newlink(struct net *src_net, struct net_device *dev, |
7a3f4a18 MS |
1259 | struct nlattr *tb[], struct nlattr *data[], |
1260 | struct netlink_ext_ack *extack) | |
b6677449 IV |
1261 | { |
1262 | struct net_bridge *br = netdev_priv(dev); | |
1263 | int err; | |
1264 | ||
84aeb437 NA |
1265 | err = register_netdevice(dev); |
1266 | if (err) | |
1267 | return err; | |
1268 | ||
b6677449 IV |
1269 | if (tb[IFLA_ADDRESS]) { |
1270 | spin_lock_bh(&br->lock); | |
1271 | br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS])); | |
1272 | spin_unlock_bh(&br->lock); | |
1273 | } | |
1274 | ||
ad744b22 | 1275 | err = br_changelink(dev, tb, data, extack); |
5b8d5429 | 1276 | if (err) |
84aeb437 NA |
1277 | br_dev_delete(dev, NULL); |
1278 | ||
5b8d5429 | 1279 | return err; |
b6677449 IV |
1280 | } |
1281 | ||
e5c3ea5c JP |
1282 | static size_t br_get_size(const struct net_device *brdev) |
1283 | { | |
1284 | return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */ | |
1285 | nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */ | |
1286 | nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */ | |
af615762 JT |
1287 | nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */ |
1288 | nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */ | |
1289 | nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */ | |
a7854037 | 1290 | nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */ |
d2d427b3 TM |
1291 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
1292 | nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */ | |
0f963b75 | 1293 | nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */ |
6dada9b1 | 1294 | nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */ |
d2d427b3 | 1295 | #endif |
7910228b | 1296 | nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */ |
5127c81f | 1297 | nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */ |
7599a220 | 1298 | nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */ |
8762ba68 | 1299 | nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */ |
684dd248 | 1300 | nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */ |
b89e6bab NA |
1301 | nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */ |
1302 | nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */ | |
12a0faa3 ND |
1303 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */ |
1304 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */ | |
1305 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */ | |
1306 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */ | |
111189ab | 1307 | nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */ |
a9a6bc70 NA |
1308 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
1309 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */ | |
89126327 | 1310 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */ |
295141d9 | 1311 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */ |
ba062d7c | 1312 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */ |
1080ab95 | 1313 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */ |
b89e6bab NA |
1314 | nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */ |
1315 | nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */ | |
1316 | nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */ | |
1317 | nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */ | |
12a0faa3 ND |
1318 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */ |
1319 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */ | |
1320 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */ | |
1321 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */ | |
1322 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */ | |
1323 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */ | |
5e923585 | 1324 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_IGMP_VERSION */ |
aa2ae3e7 | 1325 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_MLD_VERSION */ |
93870cc0 NA |
1326 | #endif |
1327 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) | |
1328 | nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */ | |
1329 | nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */ | |
1330 | nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */ | |
a9a6bc70 | 1331 | #endif |
e5c3ea5c JP |
1332 | 0; |
1333 | } | |
1334 | ||
1335 | static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev) | |
1336 | { | |
1337 | struct net_bridge *br = netdev_priv(brdev); | |
1338 | u32 forward_delay = jiffies_to_clock_t(br->forward_delay); | |
1339 | u32 hello_time = jiffies_to_clock_t(br->hello_time); | |
1340 | u32 age_time = jiffies_to_clock_t(br->max_age); | |
af615762 JT |
1341 | u32 ageing_time = jiffies_to_clock_t(br->ageing_time); |
1342 | u32 stp_enabled = br->stp_enabled; | |
1343 | u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]; | |
1f51445a | 1344 | u8 vlan_enabled = br_vlan_enabled(br->dev); |
4917a154 NA |
1345 | u64 clockval; |
1346 | ||
1347 | clockval = br_timer_value(&br->hello_timer); | |
12a0faa3 | 1348 | if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD)) |
4917a154 NA |
1349 | return -EMSGSIZE; |
1350 | clockval = br_timer_value(&br->tcn_timer); | |
12a0faa3 | 1351 | if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD)) |
4917a154 NA |
1352 | return -EMSGSIZE; |
1353 | clockval = br_timer_value(&br->topology_change_timer); | |
12a0faa3 ND |
1354 | if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval, |
1355 | IFLA_BR_PAD)) | |
4917a154 | 1356 | return -EMSGSIZE; |
f7cdee8a | 1357 | clockval = br_timer_value(&br->gc_work.timer); |
12a0faa3 | 1358 | if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD)) |
4917a154 | 1359 | return -EMSGSIZE; |
e5c3ea5c JP |
1360 | |
1361 | if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) || | |
1362 | nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) || | |
af615762 JT |
1363 | nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) || |
1364 | nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) || | |
1365 | nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) || | |
a7854037 | 1366 | nla_put_u16(skb, IFLA_BR_PRIORITY, priority) || |
7910228b | 1367 | nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) || |
4917a154 NA |
1368 | nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) || |
1369 | nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id), | |
1370 | &br->bridge_id) || | |
1371 | nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id), | |
1372 | &br->designated_root) || | |
684dd248 | 1373 | nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) || |
ed416309 NA |
1374 | nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) || |
1375 | nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) || | |
1376 | nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED, | |
d76bd14e | 1377 | br->topology_change_detected) || |
111189ab | 1378 | nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr)) |
e5c3ea5c JP |
1379 | return -EMSGSIZE; |
1380 | ||
d2d427b3 | 1381 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
0f963b75 | 1382 | if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) || |
6dada9b1 NA |
1383 | nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) || |
1384 | nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED, br->vlan_stats_enabled)) | |
d2d427b3 TM |
1385 | return -EMSGSIZE; |
1386 | #endif | |
a9a6bc70 | 1387 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
89126327 | 1388 | if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) || |
295141d9 NA |
1389 | nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) || |
1390 | nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR, | |
ba062d7c | 1391 | br->multicast_query_use_ifaddr) || |
431db3c0 | 1392 | nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) || |
1080ab95 NA |
1393 | nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED, |
1394 | br->multicast_stats_enabled) || | |
431db3c0 | 1395 | nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY, |
858079fd | 1396 | br->hash_elasticity) || |
79b859f5 NA |
1397 | nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) || |
1398 | nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT, | |
b89e6bab NA |
1399 | br->multicast_last_member_count) || |
1400 | nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT, | |
5e923585 NA |
1401 | br->multicast_startup_query_count) || |
1402 | nla_put_u8(skb, IFLA_BR_MCAST_IGMP_VERSION, | |
1403 | br->multicast_igmp_version)) | |
a9a6bc70 | 1404 | return -EMSGSIZE; |
aa2ae3e7 NA |
1405 | #if IS_ENABLED(CONFIG_IPV6) |
1406 | if (nla_put_u8(skb, IFLA_BR_MCAST_MLD_VERSION, | |
1407 | br->multicast_mld_version)) | |
1408 | return -EMSGSIZE; | |
1409 | #endif | |
7e4df51e | 1410 | clockval = jiffies_to_clock_t(br->multicast_last_member_interval); |
12a0faa3 ND |
1411 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval, |
1412 | IFLA_BR_PAD)) | |
7e4df51e NA |
1413 | return -EMSGSIZE; |
1414 | clockval = jiffies_to_clock_t(br->multicast_membership_interval); | |
12a0faa3 ND |
1415 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval, |
1416 | IFLA_BR_PAD)) | |
7e4df51e NA |
1417 | return -EMSGSIZE; |
1418 | clockval = jiffies_to_clock_t(br->multicast_querier_interval); | |
12a0faa3 ND |
1419 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval, |
1420 | IFLA_BR_PAD)) | |
7e4df51e NA |
1421 | return -EMSGSIZE; |
1422 | clockval = jiffies_to_clock_t(br->multicast_query_interval); | |
12a0faa3 ND |
1423 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval, |
1424 | IFLA_BR_PAD)) | |
7e4df51e NA |
1425 | return -EMSGSIZE; |
1426 | clockval = jiffies_to_clock_t(br->multicast_query_response_interval); | |
12a0faa3 ND |
1427 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval, |
1428 | IFLA_BR_PAD)) | |
7e4df51e NA |
1429 | return -EMSGSIZE; |
1430 | clockval = jiffies_to_clock_t(br->multicast_startup_query_interval); | |
12a0faa3 ND |
1431 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval, |
1432 | IFLA_BR_PAD)) | |
7e4df51e | 1433 | return -EMSGSIZE; |
a9a6bc70 | 1434 | #endif |
93870cc0 NA |
1435 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1436 | if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES, | |
1437 | br->nf_call_iptables ? 1 : 0) || | |
1438 | nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES, | |
1439 | br->nf_call_ip6tables ? 1 : 0) || | |
1440 | nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES, | |
1441 | br->nf_call_arptables ? 1 : 0)) | |
1442 | return -EMSGSIZE; | |
1443 | #endif | |
a9a6bc70 | 1444 | |
e5c3ea5c JP |
1445 | return 0; |
1446 | } | |
1447 | ||
d5ff8c41 | 1448 | static size_t br_get_linkxstats_size(const struct net_device *dev, int attr) |
a60c0903 | 1449 | { |
d5ff8c41 | 1450 | struct net_bridge_port *p = NULL; |
a60c0903 NA |
1451 | struct net_bridge_vlan_group *vg; |
1452 | struct net_bridge_vlan *v; | |
d5ff8c41 | 1453 | struct net_bridge *br; |
a60c0903 NA |
1454 | int numvls = 0; |
1455 | ||
d5ff8c41 NA |
1456 | switch (attr) { |
1457 | case IFLA_STATS_LINK_XSTATS: | |
1458 | br = netdev_priv(dev); | |
1459 | vg = br_vlan_group(br); | |
1460 | break; | |
1461 | case IFLA_STATS_LINK_XSTATS_SLAVE: | |
1462 | p = br_port_get_rtnl(dev); | |
1463 | if (!p) | |
1464 | return 0; | |
1465 | br = p->br; | |
1466 | vg = nbp_vlan_group(p); | |
1467 | break; | |
1468 | default: | |
1469 | return 0; | |
1470 | } | |
1471 | ||
1080ab95 NA |
1472 | if (vg) { |
1473 | /* we need to count all, even placeholder entries */ | |
1474 | list_for_each_entry(v, &vg->vlan_list, vlist) | |
1475 | numvls++; | |
1476 | } | |
a60c0903 | 1477 | |
a60c0903 | 1478 | return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) + |
1080ab95 | 1479 | nla_total_size(sizeof(struct br_mcast_stats)) + |
a60c0903 NA |
1480 | nla_total_size(0); |
1481 | } | |
1482 | ||
d5ff8c41 NA |
1483 | static int br_fill_linkxstats(struct sk_buff *skb, |
1484 | const struct net_device *dev, | |
1485 | int *prividx, int attr) | |
80e73cc5 | 1486 | { |
d5ff8c41 NA |
1487 | struct nlattr *nla __maybe_unused; |
1488 | struct net_bridge_port *p = NULL; | |
1489 | struct net_bridge_vlan_group *vg; | |
1490 | struct net_bridge_vlan *v; | |
1491 | struct net_bridge *br; | |
1492 | struct nlattr *nest; | |
1493 | int vl_idx = 0; | |
80e73cc5 NA |
1494 | |
1495 | switch (attr) { | |
1496 | case IFLA_STATS_LINK_XSTATS: | |
d5ff8c41 NA |
1497 | br = netdev_priv(dev); |
1498 | vg = br_vlan_group(br); | |
80e73cc5 NA |
1499 | break; |
1500 | case IFLA_STATS_LINK_XSTATS_SLAVE: | |
d5ff8c41 NA |
1501 | p = br_port_get_rtnl(dev); |
1502 | if (!p) | |
1503 | return 0; | |
1504 | br = p->br; | |
1505 | vg = nbp_vlan_group(p); | |
80e73cc5 | 1506 | break; |
d5ff8c41 NA |
1507 | default: |
1508 | return -EINVAL; | |
80e73cc5 NA |
1509 | } |
1510 | ||
a60c0903 NA |
1511 | nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE); |
1512 | if (!nest) | |
1513 | return -EMSGSIZE; | |
a60c0903 | 1514 | |
1080ab95 | 1515 | if (vg) { |
72f4af4e NA |
1516 | u16 pvid; |
1517 | ||
1518 | pvid = br_get_pvid(vg); | |
1080ab95 NA |
1519 | list_for_each_entry(v, &vg->vlan_list, vlist) { |
1520 | struct bridge_vlan_xstats vxi; | |
1521 | struct br_vlan_stats stats; | |
1522 | ||
1523 | if (++vl_idx < *prividx) | |
1524 | continue; | |
1525 | memset(&vxi, 0, sizeof(vxi)); | |
1526 | vxi.vid = v->vid; | |
61ba1a2d | 1527 | vxi.flags = v->flags; |
72f4af4e NA |
1528 | if (v->vid == pvid) |
1529 | vxi.flags |= BRIDGE_VLAN_INFO_PVID; | |
1080ab95 NA |
1530 | br_vlan_get_stats(v, &stats); |
1531 | vxi.rx_bytes = stats.rx_bytes; | |
1532 | vxi.rx_packets = stats.rx_packets; | |
1533 | vxi.tx_bytes = stats.tx_bytes; | |
1534 | vxi.tx_packets = stats.tx_packets; | |
1535 | ||
1536 | if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi)) | |
1537 | goto nla_put_failure; | |
1538 | } | |
1539 | } | |
1540 | ||
1541 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
1542 | if (++vl_idx >= *prividx) { | |
1543 | nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST, | |
1544 | sizeof(struct br_mcast_stats), | |
1545 | BRIDGE_XSTATS_PAD); | |
1546 | if (!nla) | |
a60c0903 | 1547 | goto nla_put_failure; |
d5ff8c41 | 1548 | br_multicast_get_stats(br, p, nla_data(nla)); |
a60c0903 | 1549 | } |
1080ab95 | 1550 | #endif |
a60c0903 NA |
1551 | nla_nest_end(skb, nest); |
1552 | *prividx = 0; | |
1080ab95 | 1553 | |
a60c0903 NA |
1554 | return 0; |
1555 | ||
1556 | nla_put_failure: | |
1557 | nla_nest_end(skb, nest); | |
1558 | *prividx = vl_idx; | |
1559 | ||
1560 | return -EMSGSIZE; | |
1561 | } | |
fed0a159 | 1562 | |
207895fd | 1563 | static struct rtnl_af_ops br_af_ops __read_mostly = { |
6cbdceeb | 1564 | .family = AF_BRIDGE, |
b1974ed0 | 1565 | .get_link_af_size = br_get_link_af_size_filtered, |
6cbdceeb VY |
1566 | }; |
1567 | ||
149ddd83 | 1568 | struct rtnl_link_ops br_link_ops __read_mostly = { |
ced8283f JP |
1569 | .kind = "bridge", |
1570 | .priv_size = sizeof(struct net_bridge), | |
1571 | .setup = br_dev_setup, | |
eb4cb851 | 1572 | .maxtype = IFLA_BR_MAX, |
13323516 | 1573 | .policy = br_policy, |
ced8283f JP |
1574 | .validate = br_validate, |
1575 | .newlink = br_dev_newlink, | |
13323516 | 1576 | .changelink = br_changelink, |
ced8283f | 1577 | .dellink = br_dev_delete, |
e5c3ea5c JP |
1578 | .get_size = br_get_size, |
1579 | .fill_info = br_fill_info, | |
a60c0903 NA |
1580 | .fill_linkxstats = br_fill_linkxstats, |
1581 | .get_linkxstats_size = br_get_linkxstats_size, | |
3ac636b8 JP |
1582 | |
1583 | .slave_maxtype = IFLA_BRPORT_MAX, | |
1584 | .slave_policy = br_port_policy, | |
1585 | .slave_changelink = br_port_slave_changelink, | |
ced8283f JP |
1586 | .get_slave_size = br_port_get_slave_size, |
1587 | .fill_slave_info = br_port_fill_slave_info, | |
bb900b27 | 1588 | }; |
11dc1f36 | 1589 | |
32fe21c0 | 1590 | int __init br_netlink_init(void) |
11dc1f36 | 1591 | { |
3ec8e9f0 VY |
1592 | int err; |
1593 | ||
1594 | br_mdb_init(); | |
3678a9d8 | 1595 | rtnl_af_register(&br_af_ops); |
3ec8e9f0 | 1596 | |
6cbdceeb VY |
1597 | err = rtnl_link_register(&br_link_ops); |
1598 | if (err) | |
1599 | goto out_af; | |
1600 | ||
3ec8e9f0 | 1601 | return 0; |
6cbdceeb VY |
1602 | |
1603 | out_af: | |
1604 | rtnl_af_unregister(&br_af_ops); | |
3ec8e9f0 VY |
1605 | br_mdb_uninit(); |
1606 | return err; | |
11dc1f36 SH |
1607 | } |
1608 | ||
34666d46 | 1609 | void br_netlink_fini(void) |
11dc1f36 | 1610 | { |
3ec8e9f0 | 1611 | br_mdb_uninit(); |
6cbdceeb | 1612 | rtnl_af_unregister(&br_af_ops); |
bb900b27 | 1613 | rtnl_link_unregister(&br_link_ops); |
11dc1f36 | 1614 | } |