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 */ |
4ebc7660 | 141 | + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */ |
80df9a26 | 142 | + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */ |
96f94e7f NA |
143 | + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */ |
144 | + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_COST */ | |
42d452c4 NA |
145 | + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_ID */ |
146 | + nla_total_size(sizeof(u16)) /* IFLA_BRPORT_NO */ | |
e08e838a NA |
147 | + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_TOPOLOGY_CHANGE_ACK */ |
148 | + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_CONFIG_PENDING */ | |
12a0faa3 ND |
149 | + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_MESSAGE_AGE_TIMER */ |
150 | + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_FORWARD_DELAY_TIMER */ | |
151 | + nla_total_size_64bit(sizeof(u64)) /* IFLA_BRPORT_HOLD_TIMER */ | |
5d6ae479 NA |
152 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
153 | + nla_total_size(sizeof(u8)) /* IFLA_BRPORT_MULTICAST_ROUTER */ | |
154 | #endif | |
25c71c75 | 155 | + 0; |
156 | } | |
157 | ||
fed0a159 | 158 | static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask) |
339bf98f TG |
159 | { |
160 | return NLMSG_ALIGN(sizeof(struct ifinfomsg)) | |
25c71c75 | 161 | + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */ |
162 | + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */ | |
163 | + nla_total_size(4) /* IFLA_MASTER */ | |
164 | + nla_total_size(4) /* IFLA_MTU */ | |
165 | + nla_total_size(4) /* IFLA_LINK */ | |
166 | + nla_total_size(1) /* IFLA_OPERSTATE */ | |
b7853d73 | 167 | + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */ |
fed0a159 RP |
168 | + nla_total_size(br_get_link_af_size_filtered(dev, |
169 | filter_mask)); /* IFLA_AF_SPEC */ | |
25c71c75 | 170 | } |
171 | ||
172 | static int br_port_fill_attrs(struct sk_buff *skb, | |
173 | const struct net_bridge_port *p) | |
174 | { | |
175 | u8 mode = !!(p->flags & BR_HAIRPIN_MODE); | |
61c0a9a8 | 176 | u64 timerval; |
25c71c75 | 177 | |
178 | if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) || | |
179 | nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) || | |
180 | nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) || | |
a2e01a65 | 181 | nla_put_u8(skb, IFLA_BRPORT_MODE, mode) || |
1007dd1a | 182 | nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) || |
b6cb5ac8 NA |
183 | nla_put_u8(skb, IFLA_BRPORT_PROTECT, |
184 | !!(p->flags & BR_ROOT_BLOCK)) || | |
185 | nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, | |
186 | !!(p->flags & BR_MULTICAST_FAST_LEAVE)) || | |
6db6f0ea FF |
187 | nla_put_u8(skb, IFLA_BRPORT_MCAST_TO_UCAST, |
188 | !!(p->flags & BR_MULTICAST_TO_UNICAST)) || | |
867a5943 | 189 | nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) || |
b6cb5ac8 NA |
190 | nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD, |
191 | !!(p->flags & BR_FLOOD)) || | |
192 | nla_put_u8(skb, IFLA_BRPORT_MCAST_FLOOD, | |
193 | !!(p->flags & BR_MCAST_FLOOD)) || | |
99f906e9 MM |
194 | nla_put_u8(skb, IFLA_BRPORT_BCAST_FLOOD, |
195 | !!(p->flags & BR_BCAST_FLOOD)) || | |
842a9ae0 JM |
196 | nla_put_u8(skb, IFLA_BRPORT_PROXYARP, !!(p->flags & BR_PROXYARP)) || |
197 | nla_put_u8(skb, IFLA_BRPORT_PROXYARP_WIFI, | |
4ebc7660 NA |
198 | !!(p->flags & BR_PROXYARP_WIFI)) || |
199 | nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id), | |
80df9a26 NA |
200 | &p->designated_root) || |
201 | nla_put(skb, IFLA_BRPORT_BRIDGE_ID, sizeof(struct ifla_bridge_id), | |
96f94e7f NA |
202 | &p->designated_bridge) || |
203 | nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_PORT, p->designated_port) || | |
42d452c4 NA |
204 | nla_put_u16(skb, IFLA_BRPORT_DESIGNATED_COST, p->designated_cost) || |
205 | nla_put_u16(skb, IFLA_BRPORT_ID, p->port_id) || | |
e08e838a NA |
206 | nla_put_u16(skb, IFLA_BRPORT_NO, p->port_no) || |
207 | nla_put_u8(skb, IFLA_BRPORT_TOPOLOGY_CHANGE_ACK, | |
208 | p->topology_change_ack) || | |
efa5356b RP |
209 | nla_put_u8(skb, IFLA_BRPORT_CONFIG_PENDING, p->config_pending) || |
210 | nla_put_u8(skb, IFLA_BRPORT_VLAN_TUNNEL, !!(p->flags & | |
211 | BR_VLAN_TUNNEL))) | |
25c71c75 | 212 | return -EMSGSIZE; |
213 | ||
61c0a9a8 | 214 | timerval = br_timer_value(&p->message_age_timer); |
12a0faa3 ND |
215 | if (nla_put_u64_64bit(skb, IFLA_BRPORT_MESSAGE_AGE_TIMER, timerval, |
216 | IFLA_BRPORT_PAD)) | |
61c0a9a8 NA |
217 | return -EMSGSIZE; |
218 | timerval = br_timer_value(&p->forward_delay_timer); | |
12a0faa3 ND |
219 | if (nla_put_u64_64bit(skb, IFLA_BRPORT_FORWARD_DELAY_TIMER, timerval, |
220 | IFLA_BRPORT_PAD)) | |
61c0a9a8 NA |
221 | return -EMSGSIZE; |
222 | timerval = br_timer_value(&p->hold_timer); | |
12a0faa3 ND |
223 | if (nla_put_u64_64bit(skb, IFLA_BRPORT_HOLD_TIMER, timerval, |
224 | IFLA_BRPORT_PAD)) | |
61c0a9a8 NA |
225 | return -EMSGSIZE; |
226 | ||
5d6ae479 NA |
227 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
228 | if (nla_put_u8(skb, IFLA_BRPORT_MULTICAST_ROUTER, | |
229 | p->multicast_router)) | |
230 | return -EMSGSIZE; | |
231 | #endif | |
232 | ||
25c71c75 | 233 | return 0; |
339bf98f TG |
234 | } |
235 | ||
36cd0ffb RP |
236 | static int br_fill_ifvlaninfo_range(struct sk_buff *skb, u16 vid_start, |
237 | u16 vid_end, u16 flags) | |
238 | { | |
239 | struct bridge_vlan_info vinfo; | |
240 | ||
241 | if ((vid_end - vid_start) > 0) { | |
242 | /* add range to skb */ | |
243 | vinfo.vid = vid_start; | |
244 | vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_BEGIN; | |
245 | if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO, | |
246 | sizeof(vinfo), &vinfo)) | |
247 | goto nla_put_failure; | |
248 | ||
36cd0ffb RP |
249 | vinfo.vid = vid_end; |
250 | vinfo.flags = flags | BRIDGE_VLAN_INFO_RANGE_END; | |
251 | if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO, | |
252 | sizeof(vinfo), &vinfo)) | |
253 | goto nla_put_failure; | |
254 | } else { | |
255 | vinfo.vid = vid_start; | |
256 | vinfo.flags = flags; | |
257 | if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO, | |
258 | sizeof(vinfo), &vinfo)) | |
259 | goto nla_put_failure; | |
260 | } | |
261 | ||
262 | return 0; | |
263 | ||
264 | nla_put_failure: | |
265 | return -EMSGSIZE; | |
266 | } | |
267 | ||
268 | static int br_fill_ifvlaninfo_compressed(struct sk_buff *skb, | |
77751ee8 | 269 | struct net_bridge_vlan_group *vg) |
36cd0ffb | 270 | { |
2594e906 NA |
271 | struct net_bridge_vlan *v; |
272 | u16 vid_range_start = 0, vid_range_end = 0, vid_range_flags = 0; | |
77751ee8 | 273 | u16 flags, pvid; |
36cd0ffb RP |
274 | int err = 0; |
275 | ||
276 | /* Pack IFLA_BRIDGE_VLAN_INFO's for every vlan | |
277 | * and mark vlan info with begin and end flags | |
278 | * if vlaninfo represents a range | |
279 | */ | |
77751ee8 | 280 | pvid = br_get_pvid(vg); |
e9c953ef | 281 | list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { |
36cd0ffb | 282 | flags = 0; |
2594e906 NA |
283 | if (!br_vlan_should_use(v)) |
284 | continue; | |
285 | if (v->vid == pvid) | |
36cd0ffb RP |
286 | flags |= BRIDGE_VLAN_INFO_PVID; |
287 | ||
2594e906 | 288 | if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED) |
36cd0ffb RP |
289 | flags |= BRIDGE_VLAN_INFO_UNTAGGED; |
290 | ||
291 | if (vid_range_start == 0) { | |
292 | goto initvars; | |
2594e906 | 293 | } else if ((v->vid - vid_range_end) == 1 && |
36cd0ffb | 294 | flags == vid_range_flags) { |
2594e906 | 295 | vid_range_end = v->vid; |
36cd0ffb RP |
296 | continue; |
297 | } else { | |
298 | err = br_fill_ifvlaninfo_range(skb, vid_range_start, | |
299 | vid_range_end, | |
300 | vid_range_flags); | |
301 | if (err) | |
302 | return err; | |
303 | } | |
304 | ||
305 | initvars: | |
2594e906 NA |
306 | vid_range_start = v->vid; |
307 | vid_range_end = v->vid; | |
36cd0ffb RP |
308 | vid_range_flags = flags; |
309 | } | |
310 | ||
0fe6de49 RP |
311 | if (vid_range_start != 0) { |
312 | /* Call it once more to send any left over vlans */ | |
313 | err = br_fill_ifvlaninfo_range(skb, vid_range_start, | |
314 | vid_range_end, | |
315 | vid_range_flags); | |
316 | if (err) | |
317 | return err; | |
318 | } | |
36cd0ffb RP |
319 | |
320 | return 0; | |
321 | } | |
322 | ||
323 | static int br_fill_ifvlaninfo(struct sk_buff *skb, | |
77751ee8 | 324 | struct net_bridge_vlan_group *vg) |
36cd0ffb RP |
325 | { |
326 | struct bridge_vlan_info vinfo; | |
2594e906 | 327 | struct net_bridge_vlan *v; |
77751ee8 | 328 | u16 pvid; |
36cd0ffb | 329 | |
77751ee8 | 330 | pvid = br_get_pvid(vg); |
e9c953ef | 331 | list_for_each_entry_rcu(v, &vg->vlan_list, vlist) { |
2594e906 NA |
332 | if (!br_vlan_should_use(v)) |
333 | continue; | |
334 | ||
335 | vinfo.vid = v->vid; | |
36cd0ffb | 336 | vinfo.flags = 0; |
2594e906 | 337 | if (v->vid == pvid) |
36cd0ffb RP |
338 | vinfo.flags |= BRIDGE_VLAN_INFO_PVID; |
339 | ||
2594e906 | 340 | if (v->flags & BRIDGE_VLAN_INFO_UNTAGGED) |
36cd0ffb RP |
341 | vinfo.flags |= BRIDGE_VLAN_INFO_UNTAGGED; |
342 | ||
343 | if (nla_put(skb, IFLA_BRIDGE_VLAN_INFO, | |
344 | sizeof(vinfo), &vinfo)) | |
345 | goto nla_put_failure; | |
346 | } | |
347 | ||
348 | return 0; | |
349 | ||
350 | nla_put_failure: | |
351 | return -EMSGSIZE; | |
352 | } | |
353 | ||
11dc1f36 SH |
354 | /* |
355 | * Create one netlink message for one interface | |
356 | * Contains port and master info as well as carrier and bridge state. | |
357 | */ | |
6cbdceeb | 358 | static int br_fill_ifinfo(struct sk_buff *skb, |
2594e906 | 359 | struct net_bridge_port *port, |
6cbdceeb VY |
360 | u32 pid, u32 seq, int event, unsigned int flags, |
361 | u32 filter_mask, const struct net_device *dev) | |
11dc1f36 | 362 | { |
2594e906 | 363 | struct net_bridge *br; |
74685962 | 364 | struct ifinfomsg *hdr; |
11dc1f36 | 365 | struct nlmsghdr *nlh; |
11dc1f36 | 366 | u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN; |
11dc1f36 | 367 | |
6cbdceeb VY |
368 | if (port) |
369 | br = port->br; | |
370 | else | |
371 | br = netdev_priv(dev); | |
372 | ||
28a16c97 | 373 | br_debug(br, "br_fill_info event %d port %s master %s\n", |
374 | event, dev->name, br->dev->name); | |
11dc1f36 | 375 | |
74685962 TG |
376 | nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags); |
377 | if (nlh == NULL) | |
26932566 | 378 | return -EMSGSIZE; |
11dc1f36 | 379 | |
74685962 TG |
380 | hdr = nlmsg_data(nlh); |
381 | hdr->ifi_family = AF_BRIDGE; | |
382 | hdr->__ifi_pad = 0; | |
383 | hdr->ifi_type = dev->type; | |
384 | hdr->ifi_index = dev->ifindex; | |
385 | hdr->ifi_flags = dev_get_flags(dev); | |
386 | hdr->ifi_change = 0; | |
11dc1f36 | 387 | |
2eb812e6 DM |
388 | if (nla_put_string(skb, IFLA_IFNAME, dev->name) || |
389 | nla_put_u32(skb, IFLA_MASTER, br->dev->ifindex) || | |
390 | nla_put_u32(skb, IFLA_MTU, dev->mtu) || | |
391 | nla_put_u8(skb, IFLA_OPERSTATE, operstate) || | |
392 | (dev->addr_len && | |
393 | nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) || | |
a54acb3a ND |
394 | (dev->ifindex != dev_get_iflink(dev) && |
395 | nla_put_u32(skb, IFLA_LINK, dev_get_iflink(dev)))) | |
2eb812e6 | 396 | goto nla_put_failure; |
25c71c75 | 397 | |
6cbdceeb | 398 | if (event == RTM_NEWLINK && port) { |
25c71c75 | 399 | struct nlattr *nest |
400 | = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED); | |
401 | ||
402 | if (nest == NULL || br_port_fill_attrs(skb, port) < 0) | |
403 | goto nla_put_failure; | |
404 | nla_nest_end(skb, nest); | |
405 | } | |
406 | ||
6cbdceeb | 407 | /* Check if the VID information is requested */ |
36cd0ffb RP |
408 | if ((filter_mask & RTEXT_FILTER_BRVLAN) || |
409 | (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) { | |
2594e906 | 410 | struct net_bridge_vlan_group *vg; |
36cd0ffb RP |
411 | struct nlattr *af; |
412 | int err; | |
6cbdceeb | 413 | |
e9c953ef NA |
414 | /* RCU needed because of the VLAN locking rules (rcu || rtnl) */ |
415 | rcu_read_lock(); | |
77751ee8 | 416 | if (port) |
e9c953ef | 417 | vg = nbp_vlan_group_rcu(port); |
77751ee8 | 418 | else |
e9c953ef | 419 | vg = br_vlan_group_rcu(br); |
6cbdceeb | 420 | |
e9c953ef NA |
421 | if (!vg || !vg->num_vlans) { |
422 | rcu_read_unlock(); | |
6cbdceeb | 423 | goto done; |
e9c953ef | 424 | } |
6cbdceeb | 425 | af = nla_nest_start(skb, IFLA_AF_SPEC); |
e9c953ef NA |
426 | if (!af) { |
427 | rcu_read_unlock(); | |
6cbdceeb | 428 | goto nla_put_failure; |
e9c953ef | 429 | } |
36cd0ffb | 430 | if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED) |
77751ee8 | 431 | err = br_fill_ifvlaninfo_compressed(skb, vg); |
36cd0ffb | 432 | else |
77751ee8 | 433 | err = br_fill_ifvlaninfo(skb, vg); |
efa5356b RP |
434 | |
435 | if (port && (port->flags & BR_VLAN_TUNNEL)) | |
436 | err = br_fill_vlan_tunnel_info(skb, vg); | |
e9c953ef | 437 | rcu_read_unlock(); |
36cd0ffb RP |
438 | if (err) |
439 | goto nla_put_failure; | |
6cbdceeb VY |
440 | nla_nest_end(skb, af); |
441 | } | |
442 | ||
443 | done: | |
053c095a JB |
444 | nlmsg_end(skb, nlh); |
445 | return 0; | |
11dc1f36 | 446 | |
74685962 | 447 | nla_put_failure: |
26932566 PM |
448 | nlmsg_cancel(skb, nlh); |
449 | return -EMSGSIZE; | |
11dc1f36 SH |
450 | } |
451 | ||
452 | /* | |
453 | * Notify listeners of a change in port information | |
454 | */ | |
455 | void br_ifinfo_notify(int event, struct net_bridge_port *port) | |
456 | { | |
407af329 | 457 | struct net *net; |
11dc1f36 | 458 | struct sk_buff *skb; |
280a306c | 459 | int err = -ENOBUFS; |
fed0a159 | 460 | u32 filter = RTEXT_FILTER_BRVLAN_COMPRESSED; |
11dc1f36 | 461 | |
407af329 VY |
462 | if (!port) |
463 | return; | |
464 | ||
465 | net = dev_net(port->dev); | |
28a16c97 | 466 | br_debug(port->br, "port %u(%s) event %d\n", |
95c96174 | 467 | (unsigned int)port->port_no, port->dev->name, event); |
28a16c97 | 468 | |
fed0a159 | 469 | skb = nlmsg_new(br_nlmsg_size(port->dev, filter), GFP_ATOMIC); |
280a306c TG |
470 | if (skb == NULL) |
471 | goto errout; | |
472 | ||
fed0a159 | 473 | err = br_fill_ifinfo(skb, port, 0, 0, event, 0, filter, port->dev); |
26932566 PM |
474 | if (err < 0) { |
475 | /* -EMSGSIZE implies BUG in br_nlmsg_size() */ | |
476 | WARN_ON(err == -EMSGSIZE); | |
477 | kfree_skb(skb); | |
478 | goto errout; | |
479 | } | |
1ce85fe4 PNA |
480 | rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC); |
481 | return; | |
280a306c | 482 | errout: |
87e823b3 | 483 | rtnl_set_sk_err(net, RTNLGRP_LINK, err); |
11dc1f36 SH |
484 | } |
485 | ||
407af329 | 486 | |
11dc1f36 SH |
487 | /* |
488 | * Dump information about all ports, in response to GETLINK | |
489 | */ | |
e5a55a89 | 490 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
46c264da | 491 | struct net_device *dev, u32 filter_mask, int nlflags) |
11dc1f36 | 492 | { |
1fb1754a | 493 | struct net_bridge_port *port = br_port_get_rtnl(dev); |
e5a55a89 | 494 | |
36cd0ffb RP |
495 | if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN) && |
496 | !(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) | |
1b846f92 | 497 | return 0; |
11dc1f36 | 498 | |
46c264da | 499 | return br_fill_ifinfo(skb, port, pid, seq, RTM_NEWLINK, nlflags, |
1b846f92 | 500 | filter_mask, dev); |
11dc1f36 SH |
501 | } |
502 | ||
bdced7ef RP |
503 | static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p, |
504 | int cmd, struct bridge_vlan_info *vinfo) | |
505 | { | |
506 | int err = 0; | |
507 | ||
508 | switch (cmd) { | |
509 | case RTM_SETLINK: | |
510 | if (p) { | |
2594e906 NA |
511 | /* if the MASTER flag is set this will act on the global |
512 | * per-VLAN entry as well | |
513 | */ | |
bdced7ef RP |
514 | err = nbp_vlan_add(p, vinfo->vid, vinfo->flags); |
515 | if (err) | |
516 | break; | |
bdced7ef | 517 | } else { |
2594e906 | 518 | vinfo->flags |= BRIDGE_VLAN_INFO_BRENTRY; |
bdced7ef RP |
519 | err = br_vlan_add(br, vinfo->vid, vinfo->flags); |
520 | } | |
521 | break; | |
522 | ||
523 | case RTM_DELLINK: | |
524 | if (p) { | |
525 | nbp_vlan_delete(p, vinfo->vid); | |
526 | if (vinfo->flags & BRIDGE_VLAN_INFO_MASTER) | |
527 | br_vlan_delete(p->br, vinfo->vid); | |
528 | } else { | |
529 | br_vlan_delete(br, vinfo->vid); | |
530 | } | |
531 | break; | |
532 | } | |
533 | ||
534 | return err; | |
535 | } | |
407af329 | 536 | |
efa5356b RP |
537 | static int br_process_vlan_info(struct net_bridge *br, |
538 | struct net_bridge_port *p, int cmd, | |
539 | struct bridge_vlan_info *vinfo_curr, | |
540 | struct bridge_vlan_info **vinfo_last) | |
541 | { | |
542 | if (!vinfo_curr->vid || vinfo_curr->vid >= VLAN_VID_MASK) | |
543 | return -EINVAL; | |
544 | ||
545 | if (vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { | |
546 | /* check if we are already processing a range */ | |
547 | if (*vinfo_last) | |
548 | return -EINVAL; | |
549 | *vinfo_last = vinfo_curr; | |
550 | /* don't allow range of pvids */ | |
551 | if ((*vinfo_last)->flags & BRIDGE_VLAN_INFO_PVID) | |
552 | return -EINVAL; | |
553 | return 0; | |
554 | } | |
555 | ||
556 | if (*vinfo_last) { | |
557 | struct bridge_vlan_info tmp_vinfo; | |
558 | int v, err; | |
559 | ||
560 | if (!(vinfo_curr->flags & BRIDGE_VLAN_INFO_RANGE_END)) | |
561 | return -EINVAL; | |
562 | ||
563 | if (vinfo_curr->vid <= (*vinfo_last)->vid) | |
564 | return -EINVAL; | |
565 | ||
566 | memcpy(&tmp_vinfo, *vinfo_last, | |
567 | sizeof(struct bridge_vlan_info)); | |
568 | for (v = (*vinfo_last)->vid; v <= vinfo_curr->vid; v++) { | |
569 | tmp_vinfo.vid = v; | |
570 | err = br_vlan_info(br, p, cmd, &tmp_vinfo); | |
571 | if (err) | |
572 | break; | |
573 | } | |
574 | *vinfo_last = NULL; | |
575 | ||
576 | return 0; | |
577 | } | |
578 | ||
579 | return br_vlan_info(br, p, cmd, vinfo_curr); | |
580 | } | |
581 | ||
407af329 VY |
582 | static int br_afspec(struct net_bridge *br, |
583 | struct net_bridge_port *p, | |
584 | struct nlattr *af_spec, | |
585 | int cmd) | |
586 | { | |
efa5356b RP |
587 | struct bridge_vlan_info *vinfo_curr = NULL; |
588 | struct bridge_vlan_info *vinfo_last = NULL; | |
bdced7ef | 589 | struct nlattr *attr; |
efa5356b RP |
590 | struct vtunnel_info tinfo_last = {}; |
591 | struct vtunnel_info tinfo_curr = {}; | |
592 | int err = 0, rem; | |
407af329 | 593 | |
bdced7ef | 594 | nla_for_each_nested(attr, af_spec, rem) { |
efa5356b RP |
595 | err = 0; |
596 | switch (nla_type(attr)) { | |
597 | case IFLA_BRIDGE_VLAN_TUNNEL_INFO: | |
1020ce31 | 598 | if (!p || !(p->flags & BR_VLAN_TUNNEL)) |
bdced7ef | 599 | return -EINVAL; |
efa5356b RP |
600 | err = br_parse_vlan_tunnel_info(attr, &tinfo_curr); |
601 | if (err) | |
602 | return err; | |
603 | err = br_process_vlan_tunnel_info(br, p, cmd, | |
604 | &tinfo_curr, | |
605 | &tinfo_last); | |
606 | if (err) | |
607 | return err; | |
608 | break; | |
609 | case IFLA_BRIDGE_VLAN_INFO: | |
610 | if (nla_len(attr) != sizeof(struct bridge_vlan_info)) | |
6623c60d | 611 | return -EINVAL; |
efa5356b RP |
612 | vinfo_curr = nla_data(attr); |
613 | err = br_process_vlan_info(br, p, cmd, vinfo_curr, | |
614 | &vinfo_last); | |
615 | if (err) | |
616 | return err; | |
617 | break; | |
bdced7ef | 618 | } |
407af329 VY |
619 | } |
620 | ||
621 | return err; | |
622 | } | |
623 | ||
3ac636b8 | 624 | static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = { |
25c71c75 | 625 | [IFLA_BRPORT_STATE] = { .type = NLA_U8 }, |
626 | [IFLA_BRPORT_COST] = { .type = NLA_U32 }, | |
627 | [IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 }, | |
628 | [IFLA_BRPORT_MODE] = { .type = NLA_U8 }, | |
a2e01a65 | 629 | [IFLA_BRPORT_GUARD] = { .type = NLA_U8 }, |
1007dd1a | 630 | [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 }, |
6f705d8c | 631 | [IFLA_BRPORT_FAST_LEAVE]= { .type = NLA_U8 }, |
9ba18891 | 632 | [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 }, |
867a5943 | 633 | [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 }, |
355b9f9d | 634 | [IFLA_BRPORT_PROXYARP] = { .type = NLA_U8 }, |
786c2077 | 635 | [IFLA_BRPORT_PROXYARP_WIFI] = { .type = NLA_U8 }, |
5d6ae479 | 636 | [IFLA_BRPORT_MULTICAST_ROUTER] = { .type = NLA_U8 }, |
6db6f0ea | 637 | [IFLA_BRPORT_MCAST_TO_UCAST] = { .type = NLA_U8 }, |
9051247d TK |
638 | [IFLA_BRPORT_MCAST_FLOOD] = { .type = NLA_U8 }, |
639 | [IFLA_BRPORT_BCAST_FLOOD] = { .type = NLA_U8 }, | |
25c71c75 | 640 | }; |
641 | ||
642 | /* Change the state of the port and notify spanning tree */ | |
643 | static int br_set_port_state(struct net_bridge_port *p, u8 state) | |
644 | { | |
645 | if (state > BR_STATE_BLOCKING) | |
646 | return -EINVAL; | |
647 | ||
648 | /* if kernel STP is running, don't allow changes */ | |
649 | if (p->br->stp_enabled == BR_KERNEL_STP) | |
650 | return -EBUSY; | |
651 | ||
576eb625 | 652 | /* if device is not up, change is not allowed |
653 | * if link is not present, only allowable state is disabled | |
654 | */ | |
25c71c75 | 655 | if (!netif_running(p->dev) || |
576eb625 | 656 | (!netif_oper_up(p->dev) && state != BR_STATE_DISABLED)) |
25c71c75 | 657 | return -ENETDOWN; |
658 | ||
775dd692 | 659 | br_set_state(p, state); |
25c71c75 | 660 | br_port_state_selection(p->br); |
661 | return 0; | |
662 | } | |
663 | ||
664 | /* Set/clear or port flags based on attribute */ | |
3922285d AS |
665 | static int br_set_port_flag(struct net_bridge_port *p, struct nlattr *tb[], |
666 | int attrtype, unsigned long mask) | |
25c71c75 | 667 | { |
3922285d AS |
668 | unsigned long flags; |
669 | int err; | |
670 | ||
671 | if (!tb[attrtype]) | |
672 | return 0; | |
673 | ||
674 | if (nla_get_u8(tb[attrtype])) | |
675 | flags = p->flags | mask; | |
676 | else | |
677 | flags = p->flags & ~mask; | |
678 | ||
679 | err = br_switchdev_set_port_flag(p, flags, mask); | |
680 | if (err) | |
681 | return err; | |
682 | ||
683 | p->flags = flags; | |
684 | return 0; | |
25c71c75 | 685 | } |
686 | ||
687 | /* Process bridge protocol info on port */ | |
688 | static int br_setport(struct net_bridge_port *p, struct nlattr *tb[]) | |
689 | { | |
e028e4b8 | 690 | unsigned long old_flags = p->flags; |
efa5356b RP |
691 | bool br_vlan_tunnel_old = false; |
692 | int err; | |
25c71c75 | 693 | |
3922285d AS |
694 | err = br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE); |
695 | if (err) | |
696 | return err; | |
697 | ||
698 | err = br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD); | |
699 | if (err) | |
700 | return err; | |
701 | ||
702 | err = br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE); | |
703 | if (err) | |
704 | return err; | |
705 | ||
706 | err = br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK); | |
707 | if (err) | |
708 | return err; | |
709 | ||
710 | err = br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING); | |
711 | if (err) | |
712 | return err; | |
713 | ||
714 | err = br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD); | |
715 | if (err) | |
716 | return err; | |
717 | ||
718 | err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_FLOOD, BR_MCAST_FLOOD); | |
719 | if (err) | |
720 | return err; | |
721 | ||
722 | err = br_set_port_flag(p, tb, IFLA_BRPORT_MCAST_TO_UCAST, BR_MULTICAST_TO_UNICAST); | |
723 | if (err) | |
724 | return err; | |
725 | ||
726 | err = br_set_port_flag(p, tb, IFLA_BRPORT_BCAST_FLOOD, BR_BCAST_FLOOD); | |
727 | if (err) | |
728 | return err; | |
729 | ||
730 | err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP, BR_PROXYARP); | |
731 | if (err) | |
732 | return err; | |
733 | ||
734 | err = br_set_port_flag(p, tb, IFLA_BRPORT_PROXYARP_WIFI, BR_PROXYARP_WIFI); | |
735 | if (err) | |
736 | return err; | |
25c71c75 | 737 | |
efa5356b | 738 | br_vlan_tunnel_old = (p->flags & BR_VLAN_TUNNEL) ? true : false; |
3922285d AS |
739 | err = br_set_port_flag(p, tb, IFLA_BRPORT_VLAN_TUNNEL, BR_VLAN_TUNNEL); |
740 | if (err) | |
741 | return err; | |
742 | ||
efa5356b RP |
743 | if (br_vlan_tunnel_old && !(p->flags & BR_VLAN_TUNNEL)) |
744 | nbp_vlan_tunnel_info_flush(p); | |
745 | ||
25c71c75 | 746 | if (tb[IFLA_BRPORT_COST]) { |
747 | err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST])); | |
748 | if (err) | |
749 | return err; | |
750 | } | |
751 | ||
752 | if (tb[IFLA_BRPORT_PRIORITY]) { | |
753 | err = br_stp_set_port_priority(p, nla_get_u16(tb[IFLA_BRPORT_PRIORITY])); | |
754 | if (err) | |
755 | return err; | |
756 | } | |
757 | ||
758 | if (tb[IFLA_BRPORT_STATE]) { | |
759 | err = br_set_port_state(p, nla_get_u8(tb[IFLA_BRPORT_STATE])); | |
760 | if (err) | |
761 | return err; | |
762 | } | |
e028e4b8 | 763 | |
9b0c6e4d NA |
764 | if (tb[IFLA_BRPORT_FLUSH]) |
765 | br_fdb_delete_by_port(p->br, p, 0, 0); | |
766 | ||
5d6ae479 NA |
767 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
768 | if (tb[IFLA_BRPORT_MULTICAST_ROUTER]) { | |
769 | u8 mcast_router = nla_get_u8(tb[IFLA_BRPORT_MULTICAST_ROUTER]); | |
770 | ||
771 | err = br_multicast_set_port_router(p, mcast_router); | |
772 | if (err) | |
773 | return err; | |
774 | } | |
775 | #endif | |
e028e4b8 | 776 | br_port_flags_change(p, old_flags ^ p->flags); |
25c71c75 | 777 | return 0; |
778 | } | |
779 | ||
780 | /* Change state and parameters on port. */ | |
add511b3 | 781 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags) |
11dc1f36 | 782 | { |
74685962 | 783 | struct nlattr *protinfo; |
407af329 | 784 | struct nlattr *afspec; |
11dc1f36 | 785 | struct net_bridge_port *p; |
2062cc20 | 786 | struct nlattr *tb[IFLA_BRPORT_MAX + 1]; |
41c498b9 | 787 | int err = 0; |
11dc1f36 | 788 | |
c60ee67f H |
789 | protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_PROTINFO); |
790 | afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); | |
407af329 | 791 | if (!protinfo && !afspec) |
25c71c75 | 792 | return 0; |
11dc1f36 | 793 | |
ec1e5610 | 794 | p = br_port_get_rtnl(dev); |
407af329 | 795 | /* We want to accept dev as bridge itself if the AF_SPEC |
8e3bff96 | 796 | * is set to see if someone is setting vlan info on the bridge |
407af329 | 797 | */ |
7b99a993 | 798 | if (!p && !afspec) |
b5ed54e9 | 799 | return -EINVAL; |
11dc1f36 | 800 | |
407af329 VY |
801 | if (p && protinfo) { |
802 | if (protinfo->nla_type & NLA_F_NESTED) { | |
fceb6435 JB |
803 | err = nla_parse_nested(tb, IFLA_BRPORT_MAX, protinfo, |
804 | br_port_policy, NULL); | |
407af329 VY |
805 | if (err) |
806 | return err; | |
807 | ||
808 | spin_lock_bh(&p->br->lock); | |
809 | err = br_setport(p, tb); | |
810 | spin_unlock_bh(&p->br->lock); | |
811 | } else { | |
8e3bff96 | 812 | /* Binary compatibility with old RSTP */ |
407af329 VY |
813 | if (nla_len(protinfo) < sizeof(u8)) |
814 | return -EINVAL; | |
815 | ||
816 | spin_lock_bh(&p->br->lock); | |
817 | err = br_set_port_state(p, nla_get_u8(protinfo)); | |
818 | spin_unlock_bh(&p->br->lock); | |
819 | } | |
25c71c75 | 820 | if (err) |
407af329 VY |
821 | goto out; |
822 | } | |
11dc1f36 | 823 | |
407af329 VY |
824 | if (afspec) { |
825 | err = br_afspec((struct net_bridge *)netdev_priv(dev), p, | |
826 | afspec, RTM_SETLINK); | |
25c71c75 | 827 | } |
b03b6dd5 | 828 | |
25c71c75 | 829 | if (err == 0) |
830 | br_ifinfo_notify(RTM_NEWLINK, p); | |
407af329 | 831 | out: |
25c71c75 | 832 | return err; |
11dc1f36 SH |
833 | } |
834 | ||
407af329 | 835 | /* Delete port information */ |
add511b3 | 836 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags) |
407af329 | 837 | { |
407af329 VY |
838 | struct nlattr *afspec; |
839 | struct net_bridge_port *p; | |
8508025c | 840 | int err = 0; |
407af329 | 841 | |
c60ee67f | 842 | afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); |
407af329 VY |
843 | if (!afspec) |
844 | return 0; | |
845 | ||
846 | p = br_port_get_rtnl(dev); | |
847 | /* We want to accept dev as bridge itself as well */ | |
848 | if (!p && !(dev->priv_flags & IFF_EBRIDGE)) | |
849 | return -EINVAL; | |
850 | ||
851 | err = br_afspec((struct net_bridge *)netdev_priv(dev), p, | |
852 | afspec, RTM_DELLINK); | |
02dba438 RP |
853 | if (err == 0) |
854 | /* Send RTM_NEWLINK because userspace | |
855 | * expects RTM_NEWLINK for vlan dels | |
856 | */ | |
857 | br_ifinfo_notify(RTM_NEWLINK, p); | |
407af329 VY |
858 | |
859 | return err; | |
860 | } | |
bb900b27 | 861 | static int br_validate(struct nlattr *tb[], struct nlattr *data[]) |
862 | { | |
863 | if (tb[IFLA_ADDRESS]) { | |
864 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
865 | return -EINVAL; | |
866 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
867 | return -EADDRNOTAVAIL; | |
868 | } | |
869 | ||
d2d427b3 TM |
870 | if (!data) |
871 | return 0; | |
872 | ||
873 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
874 | if (data[IFLA_BR_VLAN_PROTOCOL]) { | |
875 | switch (nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL])) { | |
876 | case htons(ETH_P_8021Q): | |
877 | case htons(ETH_P_8021AD): | |
878 | break; | |
879 | default: | |
880 | return -EPROTONOSUPPORT; | |
881 | } | |
882 | } | |
a2858602 TJ |
883 | |
884 | if (data[IFLA_BR_VLAN_DEFAULT_PVID]) { | |
885 | __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]); | |
886 | ||
887 | if (defpvid >= VLAN_VID_MASK) | |
888 | return -EINVAL; | |
889 | } | |
d2d427b3 TM |
890 | #endif |
891 | ||
bb900b27 | 892 | return 0; |
893 | } | |
894 | ||
3ac636b8 JP |
895 | static int br_port_slave_changelink(struct net_device *brdev, |
896 | struct net_device *dev, | |
897 | struct nlattr *tb[], | |
898 | struct nlattr *data[]) | |
899 | { | |
963ad948 NA |
900 | struct net_bridge *br = netdev_priv(brdev); |
901 | int ret; | |
902 | ||
3ac636b8 JP |
903 | if (!data) |
904 | return 0; | |
963ad948 NA |
905 | |
906 | spin_lock_bh(&br->lock); | |
907 | ret = br_setport(br_port_get_rtnl(dev), data); | |
908 | spin_unlock_bh(&br->lock); | |
909 | ||
910 | return ret; | |
3ac636b8 JP |
911 | } |
912 | ||
ced8283f JP |
913 | static int br_port_fill_slave_info(struct sk_buff *skb, |
914 | const struct net_device *brdev, | |
915 | const struct net_device *dev) | |
916 | { | |
917 | return br_port_fill_attrs(skb, br_port_get_rtnl(dev)); | |
918 | } | |
919 | ||
920 | static size_t br_port_get_slave_size(const struct net_device *brdev, | |
921 | const struct net_device *dev) | |
922 | { | |
923 | return br_port_info_size(); | |
924 | } | |
925 | ||
13323516 JP |
926 | static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = { |
927 | [IFLA_BR_FORWARD_DELAY] = { .type = NLA_U32 }, | |
928 | [IFLA_BR_HELLO_TIME] = { .type = NLA_U32 }, | |
929 | [IFLA_BR_MAX_AGE] = { .type = NLA_U32 }, | |
af615762 JT |
930 | [IFLA_BR_AGEING_TIME] = { .type = NLA_U32 }, |
931 | [IFLA_BR_STP_STATE] = { .type = NLA_U32 }, | |
932 | [IFLA_BR_PRIORITY] = { .type = NLA_U16 }, | |
a7854037 | 933 | [IFLA_BR_VLAN_FILTERING] = { .type = NLA_U8 }, |
d2d427b3 | 934 | [IFLA_BR_VLAN_PROTOCOL] = { .type = NLA_U16 }, |
7910228b | 935 | [IFLA_BR_GROUP_FWD_MASK] = { .type = NLA_U16 }, |
111189ab NA |
936 | [IFLA_BR_GROUP_ADDR] = { .type = NLA_BINARY, |
937 | .len = ETH_ALEN }, | |
a9a6bc70 | 938 | [IFLA_BR_MCAST_ROUTER] = { .type = NLA_U8 }, |
89126327 | 939 | [IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 }, |
295141d9 | 940 | [IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 }, |
ba062d7c | 941 | [IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 }, |
431db3c0 | 942 | [IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 }, |
858079fd | 943 | [IFLA_BR_MCAST_HASH_MAX] = { .type = NLA_U32 }, |
79b859f5 | 944 | [IFLA_BR_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 }, |
b89e6bab | 945 | [IFLA_BR_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 }, |
7e4df51e NA |
946 | [IFLA_BR_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 }, |
947 | [IFLA_BR_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 }, | |
948 | [IFLA_BR_MCAST_QUERIER_INTVL] = { .type = NLA_U64 }, | |
949 | [IFLA_BR_MCAST_QUERY_INTVL] = { .type = NLA_U64 }, | |
950 | [IFLA_BR_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 }, | |
951 | [IFLA_BR_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 }, | |
93870cc0 NA |
952 | [IFLA_BR_NF_CALL_IPTABLES] = { .type = NLA_U8 }, |
953 | [IFLA_BR_NF_CALL_IP6TABLES] = { .type = NLA_U8 }, | |
954 | [IFLA_BR_NF_CALL_ARPTABLES] = { .type = NLA_U8 }, | |
0f963b75 | 955 | [IFLA_BR_VLAN_DEFAULT_PVID] = { .type = NLA_U16 }, |
6dada9b1 | 956 | [IFLA_BR_VLAN_STATS_ENABLED] = { .type = NLA_U8 }, |
1080ab95 | 957 | [IFLA_BR_MCAST_STATS_ENABLED] = { .type = NLA_U8 }, |
5e923585 | 958 | [IFLA_BR_MCAST_IGMP_VERSION] = { .type = NLA_U8 }, |
aa2ae3e7 | 959 | [IFLA_BR_MCAST_MLD_VERSION] = { .type = NLA_U8 }, |
13323516 JP |
960 | }; |
961 | ||
962 | static int br_changelink(struct net_device *brdev, struct nlattr *tb[], | |
ad744b22 MS |
963 | struct nlattr *data[], |
964 | struct netlink_ext_ack *extack) | |
13323516 JP |
965 | { |
966 | struct net_bridge *br = netdev_priv(brdev); | |
967 | int err; | |
968 | ||
969 | if (!data) | |
970 | return 0; | |
971 | ||
972 | if (data[IFLA_BR_FORWARD_DELAY]) { | |
973 | err = br_set_forward_delay(br, nla_get_u32(data[IFLA_BR_FORWARD_DELAY])); | |
974 | if (err) | |
975 | return err; | |
976 | } | |
977 | ||
978 | if (data[IFLA_BR_HELLO_TIME]) { | |
979 | err = br_set_hello_time(br, nla_get_u32(data[IFLA_BR_HELLO_TIME])); | |
980 | if (err) | |
981 | return err; | |
982 | } | |
983 | ||
984 | if (data[IFLA_BR_MAX_AGE]) { | |
985 | err = br_set_max_age(br, nla_get_u32(data[IFLA_BR_MAX_AGE])); | |
986 | if (err) | |
987 | return err; | |
988 | } | |
989 | ||
af615762 | 990 | if (data[IFLA_BR_AGEING_TIME]) { |
c62987bb SF |
991 | err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME])); |
992 | if (err) | |
993 | return err; | |
af615762 JT |
994 | } |
995 | ||
996 | if (data[IFLA_BR_STP_STATE]) { | |
997 | u32 stp_enabled = nla_get_u32(data[IFLA_BR_STP_STATE]); | |
998 | ||
999 | br_stp_set_enabled(br, stp_enabled); | |
1000 | } | |
1001 | ||
1002 | if (data[IFLA_BR_PRIORITY]) { | |
1003 | u32 priority = nla_get_u16(data[IFLA_BR_PRIORITY]); | |
1004 | ||
1005 | br_stp_set_bridge_priority(br, priority); | |
1006 | } | |
1007 | ||
a7854037 NA |
1008 | if (data[IFLA_BR_VLAN_FILTERING]) { |
1009 | u8 vlan_filter = nla_get_u8(data[IFLA_BR_VLAN_FILTERING]); | |
1010 | ||
1011 | err = __br_vlan_filter_toggle(br, vlan_filter); | |
1012 | if (err) | |
1013 | return err; | |
1014 | } | |
1015 | ||
d2d427b3 TM |
1016 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
1017 | if (data[IFLA_BR_VLAN_PROTOCOL]) { | |
1018 | __be16 vlan_proto = nla_get_be16(data[IFLA_BR_VLAN_PROTOCOL]); | |
1019 | ||
1020 | err = __br_vlan_set_proto(br, vlan_proto); | |
1021 | if (err) | |
1022 | return err; | |
1023 | } | |
0f963b75 NA |
1024 | |
1025 | if (data[IFLA_BR_VLAN_DEFAULT_PVID]) { | |
1026 | __u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]); | |
1027 | ||
1028 | err = __br_vlan_set_default_pvid(br, defpvid); | |
1029 | if (err) | |
1030 | return err; | |
1031 | } | |
6dada9b1 NA |
1032 | |
1033 | if (data[IFLA_BR_VLAN_STATS_ENABLED]) { | |
1034 | __u8 vlan_stats = nla_get_u8(data[IFLA_BR_VLAN_STATS_ENABLED]); | |
1035 | ||
1036 | err = br_vlan_set_stats(br, vlan_stats); | |
1037 | if (err) | |
1038 | return err; | |
1039 | } | |
d2d427b3 TM |
1040 | #endif |
1041 | ||
7910228b NA |
1042 | if (data[IFLA_BR_GROUP_FWD_MASK]) { |
1043 | u16 fwd_mask = nla_get_u16(data[IFLA_BR_GROUP_FWD_MASK]); | |
1044 | ||
1045 | if (fwd_mask & BR_GROUPFWD_RESTRICTED) | |
1046 | return -EINVAL; | |
1047 | br->group_fwd_mask = fwd_mask; | |
1048 | } | |
1049 | ||
111189ab NA |
1050 | if (data[IFLA_BR_GROUP_ADDR]) { |
1051 | u8 new_addr[ETH_ALEN]; | |
1052 | ||
1053 | if (nla_len(data[IFLA_BR_GROUP_ADDR]) != ETH_ALEN) | |
1054 | return -EINVAL; | |
1055 | memcpy(new_addr, nla_data(data[IFLA_BR_GROUP_ADDR]), ETH_ALEN); | |
1056 | if (!is_link_local_ether_addr(new_addr)) | |
1057 | return -EINVAL; | |
1058 | if (new_addr[5] == 1 || /* 802.3x Pause address */ | |
1059 | new_addr[5] == 2 || /* 802.3ad Slow protocols */ | |
1060 | new_addr[5] == 3) /* 802.1X PAE address */ | |
1061 | return -EINVAL; | |
1062 | spin_lock_bh(&br->lock); | |
1063 | memcpy(br->group_addr, new_addr, sizeof(br->group_addr)); | |
1064 | spin_unlock_bh(&br->lock); | |
1065 | br->group_addr_set = true; | |
1066 | br_recalculate_fwd_mask(br); | |
1067 | } | |
1068 | ||
150217c6 NA |
1069 | if (data[IFLA_BR_FDB_FLUSH]) |
1070 | br_fdb_flush(br); | |
1071 | ||
a9a6bc70 NA |
1072 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
1073 | if (data[IFLA_BR_MCAST_ROUTER]) { | |
1074 | u8 multicast_router = nla_get_u8(data[IFLA_BR_MCAST_ROUTER]); | |
1075 | ||
1076 | err = br_multicast_set_router(br, multicast_router); | |
1077 | if (err) | |
1078 | return err; | |
1079 | } | |
89126327 NA |
1080 | |
1081 | if (data[IFLA_BR_MCAST_SNOOPING]) { | |
1082 | u8 mcast_snooping = nla_get_u8(data[IFLA_BR_MCAST_SNOOPING]); | |
1083 | ||
1084 | err = br_multicast_toggle(br, mcast_snooping); | |
1085 | if (err) | |
1086 | return err; | |
1087 | } | |
295141d9 NA |
1088 | |
1089 | if (data[IFLA_BR_MCAST_QUERY_USE_IFADDR]) { | |
1090 | u8 val; | |
1091 | ||
1092 | val = nla_get_u8(data[IFLA_BR_MCAST_QUERY_USE_IFADDR]); | |
1093 | br->multicast_query_use_ifaddr = !!val; | |
1094 | } | |
ba062d7c NA |
1095 | |
1096 | if (data[IFLA_BR_MCAST_QUERIER]) { | |
1097 | u8 mcast_querier = nla_get_u8(data[IFLA_BR_MCAST_QUERIER]); | |
1098 | ||
1099 | err = br_multicast_set_querier(br, mcast_querier); | |
1100 | if (err) | |
1101 | return err; | |
1102 | } | |
431db3c0 NA |
1103 | |
1104 | if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) { | |
1105 | u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]); | |
1106 | ||
1107 | br->hash_elasticity = val; | |
1108 | } | |
858079fd NA |
1109 | |
1110 | if (data[IFLA_BR_MCAST_HASH_MAX]) { | |
1111 | u32 hash_max = nla_get_u32(data[IFLA_BR_MCAST_HASH_MAX]); | |
1112 | ||
1113 | err = br_multicast_set_hash_max(br, hash_max); | |
1114 | if (err) | |
1115 | return err; | |
1116 | } | |
79b859f5 NA |
1117 | |
1118 | if (data[IFLA_BR_MCAST_LAST_MEMBER_CNT]) { | |
1119 | u32 val = nla_get_u32(data[IFLA_BR_MCAST_LAST_MEMBER_CNT]); | |
1120 | ||
1121 | br->multicast_last_member_count = val; | |
1122 | } | |
b89e6bab NA |
1123 | |
1124 | if (data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]) { | |
1125 | u32 val = nla_get_u32(data[IFLA_BR_MCAST_STARTUP_QUERY_CNT]); | |
1126 | ||
1127 | br->multicast_startup_query_count = val; | |
1128 | } | |
7e4df51e NA |
1129 | |
1130 | if (data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]) { | |
1131 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_LAST_MEMBER_INTVL]); | |
1132 | ||
1133 | br->multicast_last_member_interval = clock_t_to_jiffies(val); | |
1134 | } | |
1135 | ||
1136 | if (data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]) { | |
1137 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_MEMBERSHIP_INTVL]); | |
1138 | ||
1139 | br->multicast_membership_interval = clock_t_to_jiffies(val); | |
1140 | } | |
1141 | ||
1142 | if (data[IFLA_BR_MCAST_QUERIER_INTVL]) { | |
1143 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERIER_INTVL]); | |
1144 | ||
1145 | br->multicast_querier_interval = clock_t_to_jiffies(val); | |
1146 | } | |
1147 | ||
1148 | if (data[IFLA_BR_MCAST_QUERY_INTVL]) { | |
1149 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_INTVL]); | |
1150 | ||
1151 | br->multicast_query_interval = clock_t_to_jiffies(val); | |
1152 | } | |
1153 | ||
1154 | if (data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]) { | |
1155 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_QUERY_RESPONSE_INTVL]); | |
1156 | ||
1157 | br->multicast_query_response_interval = clock_t_to_jiffies(val); | |
1158 | } | |
1159 | ||
1160 | if (data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]) { | |
1161 | u64 val = nla_get_u64(data[IFLA_BR_MCAST_STARTUP_QUERY_INTVL]); | |
1162 | ||
1163 | br->multicast_startup_query_interval = clock_t_to_jiffies(val); | |
1164 | } | |
1080ab95 NA |
1165 | |
1166 | if (data[IFLA_BR_MCAST_STATS_ENABLED]) { | |
1167 | __u8 mcast_stats; | |
1168 | ||
1169 | mcast_stats = nla_get_u8(data[IFLA_BR_MCAST_STATS_ENABLED]); | |
1170 | br->multicast_stats_enabled = !!mcast_stats; | |
1171 | } | |
5e923585 NA |
1172 | |
1173 | if (data[IFLA_BR_MCAST_IGMP_VERSION]) { | |
1174 | __u8 igmp_version; | |
1175 | ||
1176 | igmp_version = nla_get_u8(data[IFLA_BR_MCAST_IGMP_VERSION]); | |
1177 | err = br_multicast_set_igmp_version(br, igmp_version); | |
1178 | if (err) | |
1179 | return err; | |
1180 | } | |
aa2ae3e7 NA |
1181 | |
1182 | #if IS_ENABLED(CONFIG_IPV6) | |
1183 | if (data[IFLA_BR_MCAST_MLD_VERSION]) { | |
1184 | __u8 mld_version; | |
1185 | ||
1186 | mld_version = nla_get_u8(data[IFLA_BR_MCAST_MLD_VERSION]); | |
1187 | err = br_multicast_set_mld_version(br, mld_version); | |
1188 | if (err) | |
1189 | return err; | |
1190 | } | |
1191 | #endif | |
a9a6bc70 | 1192 | #endif |
93870cc0 NA |
1193 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1194 | if (data[IFLA_BR_NF_CALL_IPTABLES]) { | |
1195 | u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IPTABLES]); | |
1196 | ||
1197 | br->nf_call_iptables = val ? true : false; | |
1198 | } | |
1199 | ||
1200 | if (data[IFLA_BR_NF_CALL_IP6TABLES]) { | |
1201 | u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_IP6TABLES]); | |
1202 | ||
1203 | br->nf_call_ip6tables = val ? true : false; | |
1204 | } | |
1205 | ||
1206 | if (data[IFLA_BR_NF_CALL_ARPTABLES]) { | |
1207 | u8 val = nla_get_u8(data[IFLA_BR_NF_CALL_ARPTABLES]); | |
1208 | ||
1209 | br->nf_call_arptables = val ? true : false; | |
1210 | } | |
1211 | #endif | |
a9a6bc70 | 1212 | |
13323516 JP |
1213 | return 0; |
1214 | } | |
1215 | ||
b6677449 | 1216 | static int br_dev_newlink(struct net *src_net, struct net_device *dev, |
7a3f4a18 MS |
1217 | struct nlattr *tb[], struct nlattr *data[], |
1218 | struct netlink_ext_ack *extack) | |
b6677449 IV |
1219 | { |
1220 | struct net_bridge *br = netdev_priv(dev); | |
1221 | int err; | |
1222 | ||
1223 | if (tb[IFLA_ADDRESS]) { | |
1224 | spin_lock_bh(&br->lock); | |
1225 | br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS])); | |
1226 | spin_unlock_bh(&br->lock); | |
1227 | } | |
1228 | ||
5b8d5429 | 1229 | err = register_netdevice(dev); |
b6677449 IV |
1230 | if (err) |
1231 | return err; | |
1232 | ||
ad744b22 | 1233 | err = br_changelink(dev, tb, data, extack); |
5b8d5429 IS |
1234 | if (err) |
1235 | unregister_netdevice(dev); | |
1236 | return err; | |
b6677449 IV |
1237 | } |
1238 | ||
e5c3ea5c JP |
1239 | static size_t br_get_size(const struct net_device *brdev) |
1240 | { | |
1241 | return nla_total_size(sizeof(u32)) + /* IFLA_BR_FORWARD_DELAY */ | |
1242 | nla_total_size(sizeof(u32)) + /* IFLA_BR_HELLO_TIME */ | |
1243 | nla_total_size(sizeof(u32)) + /* IFLA_BR_MAX_AGE */ | |
af615762 JT |
1244 | nla_total_size(sizeof(u32)) + /* IFLA_BR_AGEING_TIME */ |
1245 | nla_total_size(sizeof(u32)) + /* IFLA_BR_STP_STATE */ | |
1246 | nla_total_size(sizeof(u16)) + /* IFLA_BR_PRIORITY */ | |
a7854037 | 1247 | nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_FILTERING */ |
d2d427b3 TM |
1248 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
1249 | nla_total_size(sizeof(__be16)) + /* IFLA_BR_VLAN_PROTOCOL */ | |
0f963b75 | 1250 | nla_total_size(sizeof(u16)) + /* IFLA_BR_VLAN_DEFAULT_PVID */ |
6dada9b1 | 1251 | nla_total_size(sizeof(u8)) + /* IFLA_BR_VLAN_STATS_ENABLED */ |
d2d427b3 | 1252 | #endif |
7910228b | 1253 | nla_total_size(sizeof(u16)) + /* IFLA_BR_GROUP_FWD_MASK */ |
5127c81f | 1254 | nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_ROOT_ID */ |
7599a220 | 1255 | nla_total_size(sizeof(struct ifla_bridge_id)) + /* IFLA_BR_BRIDGE_ID */ |
8762ba68 | 1256 | nla_total_size(sizeof(u16)) + /* IFLA_BR_ROOT_PORT */ |
684dd248 | 1257 | nla_total_size(sizeof(u32)) + /* IFLA_BR_ROOT_PATH_COST */ |
b89e6bab NA |
1258 | nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE */ |
1259 | nla_total_size(sizeof(u8)) + /* IFLA_BR_TOPOLOGY_CHANGE_DETECTED */ | |
12a0faa3 ND |
1260 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_HELLO_TIMER */ |
1261 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TCN_TIMER */ | |
1262 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_TOPOLOGY_CHANGE_TIMER */ | |
1263 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_GC_TIMER */ | |
111189ab | 1264 | nla_total_size(ETH_ALEN) + /* IFLA_BR_GROUP_ADDR */ |
a9a6bc70 NA |
1265 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
1266 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_ROUTER */ | |
89126327 | 1267 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_SNOOPING */ |
295141d9 | 1268 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERY_USE_IFADDR */ |
ba062d7c | 1269 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_QUERIER */ |
1080ab95 | 1270 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_STATS_ENABLED */ |
b89e6bab NA |
1271 | nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_ELASTICITY */ |
1272 | nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_HASH_MAX */ | |
1273 | nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_LAST_MEMBER_CNT */ | |
1274 | nla_total_size(sizeof(u32)) + /* IFLA_BR_MCAST_STARTUP_QUERY_CNT */ | |
12a0faa3 ND |
1275 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_LAST_MEMBER_INTVL */ |
1276 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_MEMBERSHIP_INTVL */ | |
1277 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERIER_INTVL */ | |
1278 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_INTVL */ | |
1279 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_QUERY_RESPONSE_INTVL */ | |
1280 | nla_total_size_64bit(sizeof(u64)) + /* IFLA_BR_MCAST_STARTUP_QUERY_INTVL */ | |
5e923585 | 1281 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_IGMP_VERSION */ |
aa2ae3e7 | 1282 | nla_total_size(sizeof(u8)) + /* IFLA_BR_MCAST_MLD_VERSION */ |
93870cc0 NA |
1283 | #endif |
1284 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) | |
1285 | nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IPTABLES */ | |
1286 | nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_IP6TABLES */ | |
1287 | nla_total_size(sizeof(u8)) + /* IFLA_BR_NF_CALL_ARPTABLES */ | |
a9a6bc70 | 1288 | #endif |
e5c3ea5c JP |
1289 | 0; |
1290 | } | |
1291 | ||
1292 | static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev) | |
1293 | { | |
1294 | struct net_bridge *br = netdev_priv(brdev); | |
1295 | u32 forward_delay = jiffies_to_clock_t(br->forward_delay); | |
1296 | u32 hello_time = jiffies_to_clock_t(br->hello_time); | |
1297 | u32 age_time = jiffies_to_clock_t(br->max_age); | |
af615762 JT |
1298 | u32 ageing_time = jiffies_to_clock_t(br->ageing_time); |
1299 | u32 stp_enabled = br->stp_enabled; | |
1300 | u16 priority = (br->bridge_id.prio[0] << 8) | br->bridge_id.prio[1]; | |
1f51445a | 1301 | u8 vlan_enabled = br_vlan_enabled(br->dev); |
4917a154 NA |
1302 | u64 clockval; |
1303 | ||
1304 | clockval = br_timer_value(&br->hello_timer); | |
12a0faa3 | 1305 | if (nla_put_u64_64bit(skb, IFLA_BR_HELLO_TIMER, clockval, IFLA_BR_PAD)) |
4917a154 NA |
1306 | return -EMSGSIZE; |
1307 | clockval = br_timer_value(&br->tcn_timer); | |
12a0faa3 | 1308 | if (nla_put_u64_64bit(skb, IFLA_BR_TCN_TIMER, clockval, IFLA_BR_PAD)) |
4917a154 NA |
1309 | return -EMSGSIZE; |
1310 | clockval = br_timer_value(&br->topology_change_timer); | |
12a0faa3 ND |
1311 | if (nla_put_u64_64bit(skb, IFLA_BR_TOPOLOGY_CHANGE_TIMER, clockval, |
1312 | IFLA_BR_PAD)) | |
4917a154 | 1313 | return -EMSGSIZE; |
f7cdee8a | 1314 | clockval = br_timer_value(&br->gc_work.timer); |
12a0faa3 | 1315 | if (nla_put_u64_64bit(skb, IFLA_BR_GC_TIMER, clockval, IFLA_BR_PAD)) |
4917a154 | 1316 | return -EMSGSIZE; |
e5c3ea5c JP |
1317 | |
1318 | if (nla_put_u32(skb, IFLA_BR_FORWARD_DELAY, forward_delay) || | |
1319 | nla_put_u32(skb, IFLA_BR_HELLO_TIME, hello_time) || | |
af615762 JT |
1320 | nla_put_u32(skb, IFLA_BR_MAX_AGE, age_time) || |
1321 | nla_put_u32(skb, IFLA_BR_AGEING_TIME, ageing_time) || | |
1322 | nla_put_u32(skb, IFLA_BR_STP_STATE, stp_enabled) || | |
a7854037 | 1323 | nla_put_u16(skb, IFLA_BR_PRIORITY, priority) || |
7910228b | 1324 | nla_put_u8(skb, IFLA_BR_VLAN_FILTERING, vlan_enabled) || |
4917a154 NA |
1325 | nla_put_u16(skb, IFLA_BR_GROUP_FWD_MASK, br->group_fwd_mask) || |
1326 | nla_put(skb, IFLA_BR_BRIDGE_ID, sizeof(struct ifla_bridge_id), | |
1327 | &br->bridge_id) || | |
1328 | nla_put(skb, IFLA_BR_ROOT_ID, sizeof(struct ifla_bridge_id), | |
1329 | &br->designated_root) || | |
684dd248 | 1330 | nla_put_u16(skb, IFLA_BR_ROOT_PORT, br->root_port) || |
ed416309 NA |
1331 | nla_put_u32(skb, IFLA_BR_ROOT_PATH_COST, br->root_path_cost) || |
1332 | nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE, br->topology_change) || | |
1333 | nla_put_u8(skb, IFLA_BR_TOPOLOGY_CHANGE_DETECTED, | |
d76bd14e | 1334 | br->topology_change_detected) || |
111189ab | 1335 | nla_put(skb, IFLA_BR_GROUP_ADDR, ETH_ALEN, br->group_addr)) |
e5c3ea5c JP |
1336 | return -EMSGSIZE; |
1337 | ||
d2d427b3 | 1338 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
0f963b75 | 1339 | if (nla_put_be16(skb, IFLA_BR_VLAN_PROTOCOL, br->vlan_proto) || |
6dada9b1 NA |
1340 | nla_put_u16(skb, IFLA_BR_VLAN_DEFAULT_PVID, br->default_pvid) || |
1341 | nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED, br->vlan_stats_enabled)) | |
d2d427b3 TM |
1342 | return -EMSGSIZE; |
1343 | #endif | |
a9a6bc70 | 1344 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
89126327 | 1345 | if (nla_put_u8(skb, IFLA_BR_MCAST_ROUTER, br->multicast_router) || |
295141d9 NA |
1346 | nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) || |
1347 | nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR, | |
ba062d7c | 1348 | br->multicast_query_use_ifaddr) || |
431db3c0 | 1349 | nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) || |
1080ab95 NA |
1350 | nla_put_u8(skb, IFLA_BR_MCAST_STATS_ENABLED, |
1351 | br->multicast_stats_enabled) || | |
431db3c0 | 1352 | nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY, |
858079fd | 1353 | br->hash_elasticity) || |
79b859f5 NA |
1354 | nla_put_u32(skb, IFLA_BR_MCAST_HASH_MAX, br->hash_max) || |
1355 | nla_put_u32(skb, IFLA_BR_MCAST_LAST_MEMBER_CNT, | |
b89e6bab NA |
1356 | br->multicast_last_member_count) || |
1357 | nla_put_u32(skb, IFLA_BR_MCAST_STARTUP_QUERY_CNT, | |
5e923585 NA |
1358 | br->multicast_startup_query_count) || |
1359 | nla_put_u8(skb, IFLA_BR_MCAST_IGMP_VERSION, | |
1360 | br->multicast_igmp_version)) | |
a9a6bc70 | 1361 | return -EMSGSIZE; |
aa2ae3e7 NA |
1362 | #if IS_ENABLED(CONFIG_IPV6) |
1363 | if (nla_put_u8(skb, IFLA_BR_MCAST_MLD_VERSION, | |
1364 | br->multicast_mld_version)) | |
1365 | return -EMSGSIZE; | |
1366 | #endif | |
7e4df51e | 1367 | clockval = jiffies_to_clock_t(br->multicast_last_member_interval); |
12a0faa3 ND |
1368 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_LAST_MEMBER_INTVL, clockval, |
1369 | IFLA_BR_PAD)) | |
7e4df51e NA |
1370 | return -EMSGSIZE; |
1371 | clockval = jiffies_to_clock_t(br->multicast_membership_interval); | |
12a0faa3 ND |
1372 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_MEMBERSHIP_INTVL, clockval, |
1373 | IFLA_BR_PAD)) | |
7e4df51e NA |
1374 | return -EMSGSIZE; |
1375 | clockval = jiffies_to_clock_t(br->multicast_querier_interval); | |
12a0faa3 ND |
1376 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERIER_INTVL, clockval, |
1377 | IFLA_BR_PAD)) | |
7e4df51e NA |
1378 | return -EMSGSIZE; |
1379 | clockval = jiffies_to_clock_t(br->multicast_query_interval); | |
12a0faa3 ND |
1380 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_INTVL, clockval, |
1381 | IFLA_BR_PAD)) | |
7e4df51e NA |
1382 | return -EMSGSIZE; |
1383 | clockval = jiffies_to_clock_t(br->multicast_query_response_interval); | |
12a0faa3 ND |
1384 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL, clockval, |
1385 | IFLA_BR_PAD)) | |
7e4df51e NA |
1386 | return -EMSGSIZE; |
1387 | clockval = jiffies_to_clock_t(br->multicast_startup_query_interval); | |
12a0faa3 ND |
1388 | if (nla_put_u64_64bit(skb, IFLA_BR_MCAST_STARTUP_QUERY_INTVL, clockval, |
1389 | IFLA_BR_PAD)) | |
7e4df51e | 1390 | return -EMSGSIZE; |
a9a6bc70 | 1391 | #endif |
93870cc0 NA |
1392 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1393 | if (nla_put_u8(skb, IFLA_BR_NF_CALL_IPTABLES, | |
1394 | br->nf_call_iptables ? 1 : 0) || | |
1395 | nla_put_u8(skb, IFLA_BR_NF_CALL_IP6TABLES, | |
1396 | br->nf_call_ip6tables ? 1 : 0) || | |
1397 | nla_put_u8(skb, IFLA_BR_NF_CALL_ARPTABLES, | |
1398 | br->nf_call_arptables ? 1 : 0)) | |
1399 | return -EMSGSIZE; | |
1400 | #endif | |
a9a6bc70 | 1401 | |
e5c3ea5c JP |
1402 | return 0; |
1403 | } | |
1404 | ||
d5ff8c41 | 1405 | static size_t br_get_linkxstats_size(const struct net_device *dev, int attr) |
a60c0903 | 1406 | { |
d5ff8c41 | 1407 | struct net_bridge_port *p = NULL; |
a60c0903 NA |
1408 | struct net_bridge_vlan_group *vg; |
1409 | struct net_bridge_vlan *v; | |
d5ff8c41 | 1410 | struct net_bridge *br; |
a60c0903 NA |
1411 | int numvls = 0; |
1412 | ||
d5ff8c41 NA |
1413 | switch (attr) { |
1414 | case IFLA_STATS_LINK_XSTATS: | |
1415 | br = netdev_priv(dev); | |
1416 | vg = br_vlan_group(br); | |
1417 | break; | |
1418 | case IFLA_STATS_LINK_XSTATS_SLAVE: | |
1419 | p = br_port_get_rtnl(dev); | |
1420 | if (!p) | |
1421 | return 0; | |
1422 | br = p->br; | |
1423 | vg = nbp_vlan_group(p); | |
1424 | break; | |
1425 | default: | |
1426 | return 0; | |
1427 | } | |
1428 | ||
1080ab95 NA |
1429 | if (vg) { |
1430 | /* we need to count all, even placeholder entries */ | |
1431 | list_for_each_entry(v, &vg->vlan_list, vlist) | |
1432 | numvls++; | |
1433 | } | |
a60c0903 | 1434 | |
a60c0903 | 1435 | return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) + |
1080ab95 | 1436 | nla_total_size(sizeof(struct br_mcast_stats)) + |
a60c0903 NA |
1437 | nla_total_size(0); |
1438 | } | |
1439 | ||
d5ff8c41 NA |
1440 | static int br_fill_linkxstats(struct sk_buff *skb, |
1441 | const struct net_device *dev, | |
1442 | int *prividx, int attr) | |
80e73cc5 | 1443 | { |
d5ff8c41 NA |
1444 | struct nlattr *nla __maybe_unused; |
1445 | struct net_bridge_port *p = NULL; | |
1446 | struct net_bridge_vlan_group *vg; | |
1447 | struct net_bridge_vlan *v; | |
1448 | struct net_bridge *br; | |
1449 | struct nlattr *nest; | |
1450 | int vl_idx = 0; | |
80e73cc5 NA |
1451 | |
1452 | switch (attr) { | |
1453 | case IFLA_STATS_LINK_XSTATS: | |
d5ff8c41 NA |
1454 | br = netdev_priv(dev); |
1455 | vg = br_vlan_group(br); | |
80e73cc5 NA |
1456 | break; |
1457 | case IFLA_STATS_LINK_XSTATS_SLAVE: | |
d5ff8c41 NA |
1458 | p = br_port_get_rtnl(dev); |
1459 | if (!p) | |
1460 | return 0; | |
1461 | br = p->br; | |
1462 | vg = nbp_vlan_group(p); | |
80e73cc5 | 1463 | break; |
d5ff8c41 NA |
1464 | default: |
1465 | return -EINVAL; | |
80e73cc5 NA |
1466 | } |
1467 | ||
a60c0903 NA |
1468 | nest = nla_nest_start(skb, LINK_XSTATS_TYPE_BRIDGE); |
1469 | if (!nest) | |
1470 | return -EMSGSIZE; | |
a60c0903 | 1471 | |
1080ab95 | 1472 | if (vg) { |
72f4af4e NA |
1473 | u16 pvid; |
1474 | ||
1475 | pvid = br_get_pvid(vg); | |
1080ab95 NA |
1476 | list_for_each_entry(v, &vg->vlan_list, vlist) { |
1477 | struct bridge_vlan_xstats vxi; | |
1478 | struct br_vlan_stats stats; | |
1479 | ||
1480 | if (++vl_idx < *prividx) | |
1481 | continue; | |
1482 | memset(&vxi, 0, sizeof(vxi)); | |
1483 | vxi.vid = v->vid; | |
61ba1a2d | 1484 | vxi.flags = v->flags; |
72f4af4e NA |
1485 | if (v->vid == pvid) |
1486 | vxi.flags |= BRIDGE_VLAN_INFO_PVID; | |
1080ab95 NA |
1487 | br_vlan_get_stats(v, &stats); |
1488 | vxi.rx_bytes = stats.rx_bytes; | |
1489 | vxi.rx_packets = stats.rx_packets; | |
1490 | vxi.tx_bytes = stats.tx_bytes; | |
1491 | vxi.tx_packets = stats.tx_packets; | |
1492 | ||
1493 | if (nla_put(skb, BRIDGE_XSTATS_VLAN, sizeof(vxi), &vxi)) | |
1494 | goto nla_put_failure; | |
1495 | } | |
1496 | } | |
1497 | ||
1498 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
1499 | if (++vl_idx >= *prividx) { | |
1500 | nla = nla_reserve_64bit(skb, BRIDGE_XSTATS_MCAST, | |
1501 | sizeof(struct br_mcast_stats), | |
1502 | BRIDGE_XSTATS_PAD); | |
1503 | if (!nla) | |
a60c0903 | 1504 | goto nla_put_failure; |
d5ff8c41 | 1505 | br_multicast_get_stats(br, p, nla_data(nla)); |
a60c0903 | 1506 | } |
1080ab95 | 1507 | #endif |
a60c0903 NA |
1508 | nla_nest_end(skb, nest); |
1509 | *prividx = 0; | |
1080ab95 | 1510 | |
a60c0903 NA |
1511 | return 0; |
1512 | ||
1513 | nla_put_failure: | |
1514 | nla_nest_end(skb, nest); | |
1515 | *prividx = vl_idx; | |
1516 | ||
1517 | return -EMSGSIZE; | |
1518 | } | |
fed0a159 | 1519 | |
207895fd | 1520 | static struct rtnl_af_ops br_af_ops __read_mostly = { |
6cbdceeb | 1521 | .family = AF_BRIDGE, |
b1974ed0 | 1522 | .get_link_af_size = br_get_link_af_size_filtered, |
6cbdceeb VY |
1523 | }; |
1524 | ||
149ddd83 | 1525 | struct rtnl_link_ops br_link_ops __read_mostly = { |
ced8283f JP |
1526 | .kind = "bridge", |
1527 | .priv_size = sizeof(struct net_bridge), | |
1528 | .setup = br_dev_setup, | |
eb4cb851 | 1529 | .maxtype = IFLA_BR_MAX, |
13323516 | 1530 | .policy = br_policy, |
ced8283f JP |
1531 | .validate = br_validate, |
1532 | .newlink = br_dev_newlink, | |
13323516 | 1533 | .changelink = br_changelink, |
ced8283f | 1534 | .dellink = br_dev_delete, |
e5c3ea5c JP |
1535 | .get_size = br_get_size, |
1536 | .fill_info = br_fill_info, | |
a60c0903 NA |
1537 | .fill_linkxstats = br_fill_linkxstats, |
1538 | .get_linkxstats_size = br_get_linkxstats_size, | |
3ac636b8 JP |
1539 | |
1540 | .slave_maxtype = IFLA_BRPORT_MAX, | |
1541 | .slave_policy = br_port_policy, | |
1542 | .slave_changelink = br_port_slave_changelink, | |
ced8283f JP |
1543 | .get_slave_size = br_port_get_slave_size, |
1544 | .fill_slave_info = br_port_fill_slave_info, | |
bb900b27 | 1545 | }; |
11dc1f36 | 1546 | |
32fe21c0 | 1547 | int __init br_netlink_init(void) |
11dc1f36 | 1548 | { |
3ec8e9f0 VY |
1549 | int err; |
1550 | ||
1551 | br_mdb_init(); | |
3678a9d8 | 1552 | rtnl_af_register(&br_af_ops); |
3ec8e9f0 | 1553 | |
6cbdceeb VY |
1554 | err = rtnl_link_register(&br_link_ops); |
1555 | if (err) | |
1556 | goto out_af; | |
1557 | ||
3ec8e9f0 | 1558 | return 0; |
6cbdceeb VY |
1559 | |
1560 | out_af: | |
1561 | rtnl_af_unregister(&br_af_ops); | |
3ec8e9f0 VY |
1562 | br_mdb_uninit(); |
1563 | return err; | |
11dc1f36 SH |
1564 | } |
1565 | ||
34666d46 | 1566 | void br_netlink_fini(void) |
11dc1f36 | 1567 | { |
3ec8e9f0 | 1568 | br_mdb_uninit(); |
6cbdceeb | 1569 | rtnl_af_unregister(&br_af_ops); |
bb900b27 | 1570 | rtnl_link_unregister(&br_link_ops); |
11dc1f36 | 1571 | } |