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Commit | Line | Data |
---|---|---|
55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
4 | * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> | |
5 | */ | |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
10 | #include <linux/mutex.h> | |
11 | #include <linux/list.h> | |
12 | #include <linux/if_ether.h> | |
13 | #include <linux/ieee80211.h> | |
14 | #include <linux/nl80211.h> | |
15 | #include <linux/rtnetlink.h> | |
16 | #include <linux/netlink.h> | |
17 | #include <net/genetlink.h> | |
18 | #include <net/cfg80211.h> | |
19 | #include "core.h" | |
20 | #include "nl80211.h" | |
b2e1b302 | 21 | #include "reg.h" |
55682965 JB |
22 | |
23 | /* the netlink family */ | |
24 | static struct genl_family nl80211_fam = { | |
25 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
26 | .name = "nl80211", /* have users key off the name instead */ | |
27 | .hdrsize = 0, /* no private header */ | |
28 | .version = 1, /* no particular meaning now */ | |
29 | .maxattr = NL80211_ATTR_MAX, | |
30 | }; | |
31 | ||
32 | /* internal helper: get drv and dev */ | |
bba95fef | 33 | static int get_drv_dev_by_info_ifindex(struct nlattr **attrs, |
55682965 JB |
34 | struct cfg80211_registered_device **drv, |
35 | struct net_device **dev) | |
36 | { | |
37 | int ifindex; | |
38 | ||
bba95fef | 39 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
40 | return -EINVAL; |
41 | ||
bba95fef | 42 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
55682965 JB |
43 | *dev = dev_get_by_index(&init_net, ifindex); |
44 | if (!*dev) | |
45 | return -ENODEV; | |
46 | ||
47 | *drv = cfg80211_get_dev_from_ifindex(ifindex); | |
48 | if (IS_ERR(*drv)) { | |
49 | dev_put(*dev); | |
50 | return PTR_ERR(*drv); | |
51 | } | |
52 | ||
53 | return 0; | |
54 | } | |
55 | ||
56 | /* policy for the attributes */ | |
57 | static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { | |
58 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, | |
59 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
60 | .len = BUS_ID_SIZE-1 }, | |
31888487 | 61 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 62 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 63 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
55682965 JB |
64 | |
65 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
66 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
67 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
68 | |
69 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
70 | ||
71 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, | |
72 | .len = WLAN_MAX_KEY_LEN }, | |
73 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
74 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
75 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
ed1b6cc7 JB |
76 | |
77 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
78 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
79 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
80 | .len = IEEE80211_MAX_DATA_LEN }, | |
81 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
82 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
83 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
84 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
85 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
86 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
87 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 88 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 89 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 90 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
91 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
92 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
93 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 94 | |
b2e1b302 LR |
95 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
96 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
97 | ||
9f1ba906 JM |
98 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
99 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
100 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
101 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
102 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 103 | |
93da9cc1 | 104 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
105 | ||
36aedc90 JM |
106 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
107 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
108 | |
109 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
110 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
111 | .len = IEEE80211_MAX_DATA_LEN }, | |
55682965 JB |
112 | }; |
113 | ||
114 | /* message building helper */ | |
115 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
116 | int flags, u8 cmd) | |
117 | { | |
118 | /* since there is no private header just add the generic one */ | |
119 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
120 | } | |
121 | ||
122 | /* netlink command implementations */ | |
123 | ||
124 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
125 | struct cfg80211_registered_device *dev) | |
126 | { | |
127 | void *hdr; | |
ee688b00 JB |
128 | struct nlattr *nl_bands, *nl_band; |
129 | struct nlattr *nl_freqs, *nl_freq; | |
130 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 131 | struct nlattr *nl_modes; |
ee688b00 JB |
132 | enum ieee80211_band band; |
133 | struct ieee80211_channel *chan; | |
134 | struct ieee80211_rate *rate; | |
135 | int i; | |
f59ac048 | 136 | u16 ifmodes = dev->wiphy.interface_modes; |
55682965 JB |
137 | |
138 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
139 | if (!hdr) | |
140 | return -1; | |
141 | ||
142 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx); | |
143 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); | |
ee688b00 | 144 | |
f59ac048 LR |
145 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
146 | if (!nl_modes) | |
147 | goto nla_put_failure; | |
148 | ||
149 | i = 0; | |
150 | while (ifmodes) { | |
151 | if (ifmodes & 1) | |
152 | NLA_PUT_FLAG(msg, i); | |
153 | ifmodes >>= 1; | |
154 | i++; | |
155 | } | |
156 | ||
157 | nla_nest_end(msg, nl_modes); | |
158 | ||
ee688b00 JB |
159 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
160 | if (!nl_bands) | |
161 | goto nla_put_failure; | |
162 | ||
163 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
164 | if (!dev->wiphy.bands[band]) | |
165 | continue; | |
166 | ||
167 | nl_band = nla_nest_start(msg, band); | |
168 | if (!nl_band) | |
169 | goto nla_put_failure; | |
170 | ||
d51626df JB |
171 | /* add HT info */ |
172 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
173 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
174 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
175 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
176 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
177 | dev->wiphy.bands[band]->ht_cap.cap); | |
178 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
179 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
180 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
181 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
182 | } | |
183 | ||
ee688b00 JB |
184 | /* add frequencies */ |
185 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
186 | if (!nl_freqs) | |
187 | goto nla_put_failure; | |
188 | ||
189 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
190 | nl_freq = nla_nest_start(msg, i); | |
191 | if (!nl_freq) | |
192 | goto nla_put_failure; | |
193 | ||
194 | chan = &dev->wiphy.bands[band]->channels[i]; | |
195 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
196 | chan->center_freq); | |
197 | ||
198 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
199 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
200 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
201 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
202 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
203 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
204 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
205 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
206 | ||
bf8c1ac6 JM |
207 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
208 | DBM_TO_MBM(chan->max_power)); | |
e2f367f2 | 209 | |
ee688b00 JB |
210 | nla_nest_end(msg, nl_freq); |
211 | } | |
212 | ||
213 | nla_nest_end(msg, nl_freqs); | |
214 | ||
215 | /* add bitrates */ | |
216 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
217 | if (!nl_rates) | |
218 | goto nla_put_failure; | |
219 | ||
220 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
221 | nl_rate = nla_nest_start(msg, i); | |
222 | if (!nl_rate) | |
223 | goto nla_put_failure; | |
224 | ||
225 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
226 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
227 | rate->bitrate); | |
228 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
229 | NLA_PUT_FLAG(msg, | |
230 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
231 | ||
232 | nla_nest_end(msg, nl_rate); | |
233 | } | |
234 | ||
235 | nla_nest_end(msg, nl_rates); | |
236 | ||
237 | nla_nest_end(msg, nl_band); | |
238 | } | |
239 | nla_nest_end(msg, nl_bands); | |
240 | ||
55682965 JB |
241 | return genlmsg_end(msg, hdr); |
242 | ||
243 | nla_put_failure: | |
bc3ed28c TG |
244 | genlmsg_cancel(msg, hdr); |
245 | return -EMSGSIZE; | |
55682965 JB |
246 | } |
247 | ||
248 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
249 | { | |
250 | int idx = 0; | |
251 | int start = cb->args[0]; | |
252 | struct cfg80211_registered_device *dev; | |
253 | ||
254 | mutex_lock(&cfg80211_drv_mutex); | |
255 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
b4637271 | 256 | if (++idx <= start) |
55682965 JB |
257 | continue; |
258 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
259 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
260 | dev) < 0) { |
261 | idx--; | |
55682965 | 262 | break; |
b4637271 | 263 | } |
55682965 JB |
264 | } |
265 | mutex_unlock(&cfg80211_drv_mutex); | |
266 | ||
267 | cb->args[0] = idx; | |
268 | ||
269 | return skb->len; | |
270 | } | |
271 | ||
272 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
273 | { | |
274 | struct sk_buff *msg; | |
275 | struct cfg80211_registered_device *dev; | |
276 | ||
277 | dev = cfg80211_get_dev_from_info(info); | |
278 | if (IS_ERR(dev)) | |
279 | return PTR_ERR(dev); | |
280 | ||
281 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
282 | if (!msg) | |
283 | goto out_err; | |
284 | ||
285 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
286 | goto out_free; | |
287 | ||
288 | cfg80211_put_dev(dev); | |
289 | ||
290 | return genlmsg_unicast(msg, info->snd_pid); | |
291 | ||
292 | out_free: | |
293 | nlmsg_free(msg); | |
294 | out_err: | |
295 | cfg80211_put_dev(dev); | |
296 | return -ENOBUFS; | |
297 | } | |
298 | ||
31888487 JM |
299 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
300 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
301 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
302 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
303 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
304 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
305 | }; | |
306 | ||
307 | static int parse_txq_params(struct nlattr *tb[], | |
308 | struct ieee80211_txq_params *txq_params) | |
309 | { | |
310 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
311 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
312 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
313 | return -EINVAL; | |
314 | ||
315 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
316 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
317 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
318 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
319 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
320 | ||
321 | return 0; | |
322 | } | |
323 | ||
55682965 JB |
324 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
325 | { | |
326 | struct cfg80211_registered_device *rdev; | |
31888487 JM |
327 | int result = 0, rem_txq_params = 0; |
328 | struct nlattr *nl_txq_params; | |
55682965 JB |
329 | |
330 | rdev = cfg80211_get_dev_from_info(info); | |
331 | if (IS_ERR(rdev)) | |
332 | return PTR_ERR(rdev); | |
333 | ||
31888487 JM |
334 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) { |
335 | result = cfg80211_dev_rename( | |
336 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
337 | if (result) | |
338 | goto bad_res; | |
339 | } | |
340 | ||
341 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
342 | struct ieee80211_txq_params txq_params; | |
343 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
344 | ||
345 | if (!rdev->ops->set_txq_params) { | |
346 | result = -EOPNOTSUPP; | |
347 | goto bad_res; | |
348 | } | |
349 | ||
350 | nla_for_each_nested(nl_txq_params, | |
351 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
352 | rem_txq_params) { | |
353 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
354 | nla_data(nl_txq_params), | |
355 | nla_len(nl_txq_params), | |
356 | txq_params_policy); | |
357 | result = parse_txq_params(tb, &txq_params); | |
358 | if (result) | |
359 | goto bad_res; | |
360 | ||
361 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
362 | &txq_params); | |
363 | if (result) | |
364 | goto bad_res; | |
365 | } | |
366 | } | |
55682965 | 367 | |
72bdcf34 | 368 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
094d05dc | 369 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
72bdcf34 | 370 | struct ieee80211_channel *chan; |
306d6112 | 371 | struct ieee80211_sta_ht_cap *ht_cap; |
72bdcf34 JM |
372 | u32 freq, sec_freq; |
373 | ||
374 | if (!rdev->ops->set_channel) { | |
375 | result = -EOPNOTSUPP; | |
376 | goto bad_res; | |
377 | } | |
378 | ||
306d6112 JB |
379 | result = -EINVAL; |
380 | ||
094d05dc S |
381 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
382 | channel_type = nla_get_u32(info->attrs[ | |
383 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
384 | if (channel_type != NL80211_CHAN_NO_HT && | |
385 | channel_type != NL80211_CHAN_HT20 && | |
386 | channel_type != NL80211_CHAN_HT40PLUS && | |
387 | channel_type != NL80211_CHAN_HT40MINUS) | |
72bdcf34 | 388 | goto bad_res; |
72bdcf34 JM |
389 | } |
390 | ||
391 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
392 | chan = ieee80211_get_channel(&rdev->wiphy, freq); | |
306d6112 JB |
393 | |
394 | /* Primary channel not allowed */ | |
395 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) | |
72bdcf34 | 396 | goto bad_res; |
306d6112 | 397 | |
094d05dc | 398 | if (channel_type == NL80211_CHAN_HT40MINUS) |
72bdcf34 | 399 | sec_freq = freq - 20; |
094d05dc | 400 | else if (channel_type == NL80211_CHAN_HT40PLUS) |
72bdcf34 JM |
401 | sec_freq = freq + 20; |
402 | else | |
403 | sec_freq = 0; | |
404 | ||
306d6112 JB |
405 | ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap; |
406 | ||
407 | /* no HT capabilities */ | |
094d05dc | 408 | if (channel_type != NL80211_CHAN_NO_HT && |
306d6112 JB |
409 | !ht_cap->ht_supported) |
410 | goto bad_res; | |
411 | ||
72bdcf34 JM |
412 | if (sec_freq) { |
413 | struct ieee80211_channel *schan; | |
306d6112 JB |
414 | |
415 | /* no 40 MHz capabilities */ | |
416 | if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) || | |
417 | (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)) | |
418 | goto bad_res; | |
419 | ||
72bdcf34 | 420 | schan = ieee80211_get_channel(&rdev->wiphy, sec_freq); |
306d6112 JB |
421 | |
422 | /* Secondary channel not allowed */ | |
423 | if (!schan || schan->flags & IEEE80211_CHAN_DISABLED) | |
72bdcf34 | 424 | goto bad_res; |
72bdcf34 JM |
425 | } |
426 | ||
427 | result = rdev->ops->set_channel(&rdev->wiphy, chan, | |
094d05dc | 428 | channel_type); |
72bdcf34 JM |
429 | if (result) |
430 | goto bad_res; | |
431 | } | |
432 | ||
433 | ||
306d6112 | 434 | bad_res: |
55682965 JB |
435 | cfg80211_put_dev(rdev); |
436 | return result; | |
437 | } | |
438 | ||
439 | ||
440 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
441 | struct net_device *dev) | |
442 | { | |
443 | void *hdr; | |
444 | ||
445 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
446 | if (!hdr) | |
447 | return -1; | |
448 | ||
449 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
450 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); | |
60719ffd | 451 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
55682965 JB |
452 | return genlmsg_end(msg, hdr); |
453 | ||
454 | nla_put_failure: | |
bc3ed28c TG |
455 | genlmsg_cancel(msg, hdr); |
456 | return -EMSGSIZE; | |
55682965 JB |
457 | } |
458 | ||
459 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
460 | { | |
461 | int wp_idx = 0; | |
462 | int if_idx = 0; | |
463 | int wp_start = cb->args[0]; | |
464 | int if_start = cb->args[1]; | |
465 | struct cfg80211_registered_device *dev; | |
466 | struct wireless_dev *wdev; | |
467 | ||
468 | mutex_lock(&cfg80211_drv_mutex); | |
469 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
bba95fef JB |
470 | if (wp_idx < wp_start) { |
471 | wp_idx++; | |
55682965 | 472 | continue; |
bba95fef | 473 | } |
55682965 JB |
474 | if_idx = 0; |
475 | ||
476 | mutex_lock(&dev->devlist_mtx); | |
477 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
bba95fef JB |
478 | if (if_idx < if_start) { |
479 | if_idx++; | |
55682965 | 480 | continue; |
bba95fef | 481 | } |
55682965 JB |
482 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
483 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
bba95fef JB |
484 | wdev->netdev) < 0) { |
485 | mutex_unlock(&dev->devlist_mtx); | |
486 | goto out; | |
487 | } | |
488 | if_idx++; | |
55682965 JB |
489 | } |
490 | mutex_unlock(&dev->devlist_mtx); | |
bba95fef JB |
491 | |
492 | wp_idx++; | |
55682965 | 493 | } |
bba95fef | 494 | out: |
55682965 JB |
495 | mutex_unlock(&cfg80211_drv_mutex); |
496 | ||
497 | cb->args[0] = wp_idx; | |
498 | cb->args[1] = if_idx; | |
499 | ||
500 | return skb->len; | |
501 | } | |
502 | ||
503 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
504 | { | |
505 | struct sk_buff *msg; | |
506 | struct cfg80211_registered_device *dev; | |
507 | struct net_device *netdev; | |
508 | int err; | |
509 | ||
bba95fef | 510 | err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev); |
55682965 JB |
511 | if (err) |
512 | return err; | |
513 | ||
514 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
515 | if (!msg) | |
516 | goto out_err; | |
517 | ||
518 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) | |
519 | goto out_free; | |
520 | ||
521 | dev_put(netdev); | |
522 | cfg80211_put_dev(dev); | |
523 | ||
524 | return genlmsg_unicast(msg, info->snd_pid); | |
525 | ||
526 | out_free: | |
527 | nlmsg_free(msg); | |
528 | out_err: | |
529 | dev_put(netdev); | |
530 | cfg80211_put_dev(dev); | |
531 | return -ENOBUFS; | |
532 | } | |
533 | ||
66f7ac50 MW |
534 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
535 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
536 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
537 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
538 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
539 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
540 | }; | |
541 | ||
542 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
543 | { | |
544 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
545 | int flag; | |
546 | ||
547 | *mntrflags = 0; | |
548 | ||
549 | if (!nla) | |
550 | return -EINVAL; | |
551 | ||
552 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
553 | nla, mntr_flags_policy)) | |
554 | return -EINVAL; | |
555 | ||
556 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
557 | if (flags[flag]) | |
558 | *mntrflags |= (1<<flag); | |
559 | ||
560 | return 0; | |
561 | } | |
562 | ||
55682965 JB |
563 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
564 | { | |
565 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 566 | struct vif_params params; |
55682965 JB |
567 | int err, ifindex; |
568 | enum nl80211_iftype type; | |
569 | struct net_device *dev; | |
92ffe055 | 570 | u32 _flags, *flags = NULL; |
55682965 | 571 | |
2ec600d6 LCC |
572 | memset(¶ms, 0, sizeof(params)); |
573 | ||
bba95fef | 574 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
55682965 JB |
575 | if (err) |
576 | return err; | |
577 | ifindex = dev->ifindex; | |
723b038d | 578 | type = dev->ieee80211_ptr->iftype; |
55682965 JB |
579 | dev_put(dev); |
580 | ||
723b038d JB |
581 | err = -EINVAL; |
582 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
583 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
584 | if (type > NL80211_IFTYPE_MAX) | |
585 | goto unlock; | |
586 | } | |
587 | ||
f59ac048 LR |
588 | if (!drv->ops->change_virtual_intf || |
589 | !(drv->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
590 | err = -EOPNOTSUPP; |
591 | goto unlock; | |
592 | } | |
593 | ||
92ffe055 JB |
594 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
595 | if (type != NL80211_IFTYPE_MESH_POINT) { | |
596 | err = -EINVAL; | |
597 | goto unlock; | |
598 | } | |
2ec600d6 LCC |
599 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
600 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
601 | } | |
602 | ||
92ffe055 JB |
603 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
604 | if (type != NL80211_IFTYPE_MONITOR) { | |
605 | err = -EINVAL; | |
606 | goto unlock; | |
607 | } | |
608 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
609 | &_flags); | |
610 | if (!err) | |
611 | flags = &_flags; | |
612 | } | |
55682965 | 613 | rtnl_lock(); |
66f7ac50 | 614 | err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, |
92ffe055 | 615 | type, flags, ¶ms); |
60719ffd JB |
616 | |
617 | dev = __dev_get_by_index(&init_net, ifindex); | |
618 | WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type)); | |
619 | ||
55682965 JB |
620 | rtnl_unlock(); |
621 | ||
622 | unlock: | |
623 | cfg80211_put_dev(drv); | |
624 | return err; | |
625 | } | |
626 | ||
627 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
628 | { | |
629 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 630 | struct vif_params params; |
55682965 JB |
631 | int err; |
632 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 633 | u32 flags; |
55682965 | 634 | |
2ec600d6 LCC |
635 | memset(¶ms, 0, sizeof(params)); |
636 | ||
55682965 JB |
637 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
638 | return -EINVAL; | |
639 | ||
640 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
641 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
642 | if (type > NL80211_IFTYPE_MAX) | |
643 | return -EINVAL; | |
644 | } | |
645 | ||
646 | drv = cfg80211_get_dev_from_info(info); | |
647 | if (IS_ERR(drv)) | |
648 | return PTR_ERR(drv); | |
649 | ||
f59ac048 LR |
650 | if (!drv->ops->add_virtual_intf || |
651 | !(drv->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
652 | err = -EOPNOTSUPP; |
653 | goto unlock; | |
654 | } | |
655 | ||
2ec600d6 LCC |
656 | if (type == NL80211_IFTYPE_MESH_POINT && |
657 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
658 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
659 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
660 | } | |
661 | ||
55682965 | 662 | rtnl_lock(); |
66f7ac50 MW |
663 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
664 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
665 | &flags); | |
55682965 | 666 | err = drv->ops->add_virtual_intf(&drv->wiphy, |
66f7ac50 | 667 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 668 | type, err ? NULL : &flags, ¶ms); |
55682965 JB |
669 | rtnl_unlock(); |
670 | ||
2ec600d6 | 671 | |
55682965 JB |
672 | unlock: |
673 | cfg80211_put_dev(drv); | |
674 | return err; | |
675 | } | |
676 | ||
677 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
678 | { | |
679 | struct cfg80211_registered_device *drv; | |
680 | int ifindex, err; | |
681 | struct net_device *dev; | |
682 | ||
bba95fef | 683 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
55682965 JB |
684 | if (err) |
685 | return err; | |
686 | ifindex = dev->ifindex; | |
687 | dev_put(dev); | |
688 | ||
689 | if (!drv->ops->del_virtual_intf) { | |
690 | err = -EOPNOTSUPP; | |
691 | goto out; | |
692 | } | |
693 | ||
694 | rtnl_lock(); | |
695 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); | |
696 | rtnl_unlock(); | |
697 | ||
698 | out: | |
699 | cfg80211_put_dev(drv); | |
700 | return err; | |
701 | } | |
702 | ||
41ade00f JB |
703 | struct get_key_cookie { |
704 | struct sk_buff *msg; | |
705 | int error; | |
706 | }; | |
707 | ||
708 | static void get_key_callback(void *c, struct key_params *params) | |
709 | { | |
710 | struct get_key_cookie *cookie = c; | |
711 | ||
712 | if (params->key) | |
713 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
714 | params->key_len, params->key); | |
715 | ||
716 | if (params->seq) | |
717 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
718 | params->seq_len, params->seq); | |
719 | ||
720 | if (params->cipher) | |
721 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
722 | params->cipher); | |
723 | ||
724 | return; | |
725 | nla_put_failure: | |
726 | cookie->error = 1; | |
727 | } | |
728 | ||
729 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
730 | { | |
731 | struct cfg80211_registered_device *drv; | |
732 | int err; | |
733 | struct net_device *dev; | |
734 | u8 key_idx = 0; | |
735 | u8 *mac_addr = NULL; | |
736 | struct get_key_cookie cookie = { | |
737 | .error = 0, | |
738 | }; | |
739 | void *hdr; | |
740 | struct sk_buff *msg; | |
741 | ||
742 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
743 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
744 | ||
3cfcf6ac | 745 | if (key_idx > 5) |
41ade00f JB |
746 | return -EINVAL; |
747 | ||
748 | if (info->attrs[NL80211_ATTR_MAC]) | |
749 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
750 | ||
bba95fef | 751 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f JB |
752 | if (err) |
753 | return err; | |
754 | ||
755 | if (!drv->ops->get_key) { | |
756 | err = -EOPNOTSUPP; | |
757 | goto out; | |
758 | } | |
759 | ||
760 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
761 | if (!msg) { | |
762 | err = -ENOMEM; | |
763 | goto out; | |
764 | } | |
765 | ||
766 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
767 | NL80211_CMD_NEW_KEY); | |
768 | ||
769 | if (IS_ERR(hdr)) { | |
770 | err = PTR_ERR(hdr); | |
771 | goto out; | |
772 | } | |
773 | ||
774 | cookie.msg = msg; | |
775 | ||
776 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
777 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
778 | if (mac_addr) | |
779 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
780 | ||
781 | rtnl_lock(); | |
782 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, | |
783 | &cookie, get_key_callback); | |
784 | rtnl_unlock(); | |
785 | ||
786 | if (err) | |
787 | goto out; | |
788 | ||
789 | if (cookie.error) | |
790 | goto nla_put_failure; | |
791 | ||
792 | genlmsg_end(msg, hdr); | |
793 | err = genlmsg_unicast(msg, info->snd_pid); | |
794 | goto out; | |
795 | ||
796 | nla_put_failure: | |
797 | err = -ENOBUFS; | |
798 | nlmsg_free(msg); | |
799 | out: | |
800 | cfg80211_put_dev(drv); | |
801 | dev_put(dev); | |
802 | return err; | |
803 | } | |
804 | ||
805 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
806 | { | |
807 | struct cfg80211_registered_device *drv; | |
808 | int err; | |
809 | struct net_device *dev; | |
810 | u8 key_idx; | |
3cfcf6ac JM |
811 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
812 | u8 key_index); | |
41ade00f JB |
813 | |
814 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) | |
815 | return -EINVAL; | |
816 | ||
817 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
818 | ||
3cfcf6ac JM |
819 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) { |
820 | if (key_idx < 4 || key_idx > 5) | |
821 | return -EINVAL; | |
822 | } else if (key_idx > 3) | |
41ade00f JB |
823 | return -EINVAL; |
824 | ||
825 | /* currently only support setting default key */ | |
3cfcf6ac JM |
826 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] && |
827 | !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) | |
41ade00f JB |
828 | return -EINVAL; |
829 | ||
bba95fef | 830 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f JB |
831 | if (err) |
832 | return err; | |
833 | ||
3cfcf6ac JM |
834 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT]) |
835 | func = drv->ops->set_default_key; | |
836 | else | |
837 | func = drv->ops->set_default_mgmt_key; | |
838 | ||
839 | if (!func) { | |
41ade00f JB |
840 | err = -EOPNOTSUPP; |
841 | goto out; | |
842 | } | |
843 | ||
844 | rtnl_lock(); | |
3cfcf6ac | 845 | err = func(&drv->wiphy, dev, key_idx); |
41ade00f JB |
846 | rtnl_unlock(); |
847 | ||
848 | out: | |
849 | cfg80211_put_dev(drv); | |
850 | dev_put(dev); | |
851 | return err; | |
852 | } | |
853 | ||
854 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
855 | { | |
856 | struct cfg80211_registered_device *drv; | |
857 | int err; | |
858 | struct net_device *dev; | |
859 | struct key_params params; | |
860 | u8 key_idx = 0; | |
861 | u8 *mac_addr = NULL; | |
862 | ||
863 | memset(¶ms, 0, sizeof(params)); | |
864 | ||
865 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
866 | return -EINVAL; | |
867 | ||
868 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
869 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
870 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
871 | } | |
872 | ||
873 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
874 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
875 | ||
876 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
877 | ||
878 | if (info->attrs[NL80211_ATTR_MAC]) | |
879 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
880 | ||
3cfcf6ac | 881 | if (key_idx > 5) |
41ade00f JB |
882 | return -EINVAL; |
883 | ||
884 | /* | |
885 | * Disallow pairwise keys with non-zero index unless it's WEP | |
886 | * (because current deployments use pairwise WEP keys with | |
887 | * non-zero indizes but 802.11i clearly specifies to use zero) | |
888 | */ | |
889 | if (mac_addr && key_idx && | |
890 | params.cipher != WLAN_CIPHER_SUITE_WEP40 && | |
891 | params.cipher != WLAN_CIPHER_SUITE_WEP104) | |
892 | return -EINVAL; | |
893 | ||
894 | /* TODO: add definitions for the lengths to linux/ieee80211.h */ | |
895 | switch (params.cipher) { | |
896 | case WLAN_CIPHER_SUITE_WEP40: | |
897 | if (params.key_len != 5) | |
898 | return -EINVAL; | |
899 | break; | |
900 | case WLAN_CIPHER_SUITE_TKIP: | |
901 | if (params.key_len != 32) | |
902 | return -EINVAL; | |
903 | break; | |
904 | case WLAN_CIPHER_SUITE_CCMP: | |
905 | if (params.key_len != 16) | |
906 | return -EINVAL; | |
907 | break; | |
908 | case WLAN_CIPHER_SUITE_WEP104: | |
909 | if (params.key_len != 13) | |
910 | return -EINVAL; | |
911 | break; | |
3cfcf6ac JM |
912 | case WLAN_CIPHER_SUITE_AES_CMAC: |
913 | if (params.key_len != 16) | |
914 | return -EINVAL; | |
915 | break; | |
41ade00f JB |
916 | default: |
917 | return -EINVAL; | |
918 | } | |
919 | ||
bba95fef | 920 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f JB |
921 | if (err) |
922 | return err; | |
923 | ||
924 | if (!drv->ops->add_key) { | |
925 | err = -EOPNOTSUPP; | |
926 | goto out; | |
927 | } | |
928 | ||
929 | rtnl_lock(); | |
930 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); | |
931 | rtnl_unlock(); | |
932 | ||
933 | out: | |
934 | cfg80211_put_dev(drv); | |
935 | dev_put(dev); | |
936 | return err; | |
937 | } | |
938 | ||
939 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
940 | { | |
941 | struct cfg80211_registered_device *drv; | |
942 | int err; | |
943 | struct net_device *dev; | |
944 | u8 key_idx = 0; | |
945 | u8 *mac_addr = NULL; | |
946 | ||
947 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
948 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
949 | ||
3cfcf6ac | 950 | if (key_idx > 5) |
41ade00f JB |
951 | return -EINVAL; |
952 | ||
953 | if (info->attrs[NL80211_ATTR_MAC]) | |
954 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
955 | ||
bba95fef | 956 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f JB |
957 | if (err) |
958 | return err; | |
959 | ||
960 | if (!drv->ops->del_key) { | |
961 | err = -EOPNOTSUPP; | |
962 | goto out; | |
963 | } | |
964 | ||
965 | rtnl_lock(); | |
966 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); | |
967 | rtnl_unlock(); | |
968 | ||
969 | out: | |
970 | cfg80211_put_dev(drv); | |
971 | dev_put(dev); | |
972 | return err; | |
973 | } | |
974 | ||
ed1b6cc7 JB |
975 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
976 | { | |
977 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
978 | struct beacon_parameters *info); | |
979 | struct cfg80211_registered_device *drv; | |
980 | int err; | |
981 | struct net_device *dev; | |
982 | struct beacon_parameters params; | |
983 | int haveinfo = 0; | |
984 | ||
bba95fef | 985 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
ed1b6cc7 JB |
986 | if (err) |
987 | return err; | |
988 | ||
989 | switch (info->genlhdr->cmd) { | |
990 | case NL80211_CMD_NEW_BEACON: | |
991 | /* these are required for NEW_BEACON */ | |
992 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
993 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
994 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
995 | err = -EINVAL; | |
996 | goto out; | |
997 | } | |
998 | ||
999 | call = drv->ops->add_beacon; | |
1000 | break; | |
1001 | case NL80211_CMD_SET_BEACON: | |
1002 | call = drv->ops->set_beacon; | |
1003 | break; | |
1004 | default: | |
1005 | WARN_ON(1); | |
1006 | err = -EOPNOTSUPP; | |
1007 | goto out; | |
1008 | } | |
1009 | ||
1010 | if (!call) { | |
1011 | err = -EOPNOTSUPP; | |
1012 | goto out; | |
1013 | } | |
1014 | ||
1015 | memset(¶ms, 0, sizeof(params)); | |
1016 | ||
1017 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1018 | params.interval = | |
1019 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1020 | haveinfo = 1; | |
1021 | } | |
1022 | ||
1023 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1024 | params.dtim_period = | |
1025 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1026 | haveinfo = 1; | |
1027 | } | |
1028 | ||
1029 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1030 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1031 | params.head_len = | |
1032 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1033 | haveinfo = 1; | |
1034 | } | |
1035 | ||
1036 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1037 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1038 | params.tail_len = | |
1039 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1040 | haveinfo = 1; | |
1041 | } | |
1042 | ||
1043 | if (!haveinfo) { | |
1044 | err = -EINVAL; | |
1045 | goto out; | |
1046 | } | |
1047 | ||
1048 | rtnl_lock(); | |
1049 | err = call(&drv->wiphy, dev, ¶ms); | |
1050 | rtnl_unlock(); | |
1051 | ||
1052 | out: | |
1053 | cfg80211_put_dev(drv); | |
1054 | dev_put(dev); | |
1055 | return err; | |
1056 | } | |
1057 | ||
1058 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1059 | { | |
1060 | struct cfg80211_registered_device *drv; | |
1061 | int err; | |
1062 | struct net_device *dev; | |
1063 | ||
bba95fef | 1064 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
ed1b6cc7 JB |
1065 | if (err) |
1066 | return err; | |
1067 | ||
1068 | if (!drv->ops->del_beacon) { | |
1069 | err = -EOPNOTSUPP; | |
1070 | goto out; | |
1071 | } | |
1072 | ||
1073 | rtnl_lock(); | |
1074 | err = drv->ops->del_beacon(&drv->wiphy, dev); | |
1075 | rtnl_unlock(); | |
1076 | ||
1077 | out: | |
1078 | cfg80211_put_dev(drv); | |
1079 | dev_put(dev); | |
1080 | return err; | |
1081 | } | |
1082 | ||
5727ef1b JB |
1083 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1084 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1085 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1086 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
1087 | }; | |
1088 | ||
1089 | static int parse_station_flags(struct nlattr *nla, u32 *staflags) | |
1090 | { | |
1091 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
1092 | int flag; | |
1093 | ||
1094 | *staflags = 0; | |
1095 | ||
1096 | if (!nla) | |
1097 | return 0; | |
1098 | ||
1099 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1100 | nla, sta_flags_policy)) | |
1101 | return -EINVAL; | |
1102 | ||
1103 | *staflags = STATION_FLAG_CHANGED; | |
1104 | ||
1105 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1106 | if (flags[flag]) | |
1107 | *staflags |= (1<<flag); | |
1108 | ||
1109 | return 0; | |
1110 | } | |
1111 | ||
420e7fab HR |
1112 | static u16 nl80211_calculate_bitrate(struct rate_info *rate) |
1113 | { | |
1114 | int modulation, streams, bitrate; | |
1115 | ||
1116 | if (!(rate->flags & RATE_INFO_FLAGS_MCS)) | |
1117 | return rate->legacy; | |
1118 | ||
1119 | /* the formula below does only work for MCS values smaller than 32 */ | |
1120 | if (rate->mcs >= 32) | |
1121 | return 0; | |
1122 | ||
1123 | modulation = rate->mcs & 7; | |
1124 | streams = (rate->mcs >> 3) + 1; | |
1125 | ||
1126 | bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ? | |
1127 | 13500000 : 6500000; | |
1128 | ||
1129 | if (modulation < 4) | |
1130 | bitrate *= (modulation + 1); | |
1131 | else if (modulation == 4) | |
1132 | bitrate *= (modulation + 2); | |
1133 | else | |
1134 | bitrate *= (modulation + 3); | |
1135 | ||
1136 | bitrate *= streams; | |
1137 | ||
1138 | if (rate->flags & RATE_INFO_FLAGS_SHORT_GI) | |
1139 | bitrate = (bitrate / 9) * 10; | |
1140 | ||
1141 | /* do NOT round down here */ | |
1142 | return (bitrate + 50000) / 100000; | |
1143 | } | |
1144 | ||
fd5b74dc JB |
1145 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1146 | int flags, struct net_device *dev, | |
2ec600d6 | 1147 | u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1148 | { |
1149 | void *hdr; | |
420e7fab HR |
1150 | struct nlattr *sinfoattr, *txrate; |
1151 | u16 bitrate; | |
fd5b74dc JB |
1152 | |
1153 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1154 | if (!hdr) | |
1155 | return -1; | |
1156 | ||
1157 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1158 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1159 | ||
2ec600d6 LCC |
1160 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1161 | if (!sinfoattr) | |
fd5b74dc | 1162 | goto nla_put_failure; |
2ec600d6 LCC |
1163 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1164 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1165 | sinfo->inactive_time); | |
1166 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1167 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1168 | sinfo->rx_bytes); | |
1169 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1170 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1171 | sinfo->tx_bytes); | |
1172 | if (sinfo->filled & STATION_INFO_LLID) | |
1173 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1174 | sinfo->llid); | |
1175 | if (sinfo->filled & STATION_INFO_PLID) | |
1176 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1177 | sinfo->plid); | |
1178 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1179 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1180 | sinfo->plink_state); | |
420e7fab HR |
1181 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1182 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1183 | sinfo->signal); | |
1184 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1185 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1186 | if (!txrate) | |
1187 | goto nla_put_failure; | |
1188 | ||
1189 | /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
1190 | bitrate = nl80211_calculate_bitrate(&sinfo->txrate); | |
1191 | if (bitrate > 0) | |
1192 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1193 | |
420e7fab HR |
1194 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1195 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1196 | sinfo->txrate.mcs); | |
1197 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1198 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1199 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1200 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1201 | ||
1202 | nla_nest_end(msg, txrate); | |
1203 | } | |
2ec600d6 | 1204 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1205 | |
1206 | return genlmsg_end(msg, hdr); | |
1207 | ||
1208 | nla_put_failure: | |
bc3ed28c TG |
1209 | genlmsg_cancel(msg, hdr); |
1210 | return -EMSGSIZE; | |
fd5b74dc JB |
1211 | } |
1212 | ||
2ec600d6 | 1213 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1214 | struct netlink_callback *cb) |
2ec600d6 | 1215 | { |
2ec600d6 LCC |
1216 | struct station_info sinfo; |
1217 | struct cfg80211_registered_device *dev; | |
bba95fef | 1218 | struct net_device *netdev; |
2ec600d6 | 1219 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1220 | int ifidx = cb->args[0]; |
1221 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1222 | int err; |
2ec600d6 | 1223 | |
bba95fef JB |
1224 | if (!ifidx) { |
1225 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1226 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1227 | nl80211_policy); | |
1228 | if (err) | |
1229 | return err; | |
2ec600d6 | 1230 | |
bba95fef JB |
1231 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) |
1232 | return -EINVAL; | |
2ec600d6 | 1233 | |
bba95fef JB |
1234 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); |
1235 | if (!ifidx) | |
1236 | return -EINVAL; | |
2ec600d6 | 1237 | } |
2ec600d6 | 1238 | |
bba95fef JB |
1239 | netdev = dev_get_by_index(&init_net, ifidx); |
1240 | if (!netdev) | |
1241 | return -ENODEV; | |
2ec600d6 | 1242 | |
bba95fef JB |
1243 | dev = cfg80211_get_dev_from_ifindex(ifidx); |
1244 | if (IS_ERR(dev)) { | |
1245 | err = PTR_ERR(dev); | |
1246 | goto out_put_netdev; | |
1247 | } | |
1248 | ||
1249 | if (!dev->ops->dump_station) { | |
1250 | err = -ENOSYS; | |
1251 | goto out_err; | |
1252 | } | |
1253 | ||
1254 | rtnl_lock(); | |
1255 | ||
1256 | while (1) { | |
1257 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1258 | mac_addr, &sinfo); | |
1259 | if (err == -ENOENT) | |
1260 | break; | |
1261 | if (err) | |
1262 | goto out_err_rtnl; | |
1263 | ||
1264 | if (nl80211_send_station(skb, | |
1265 | NETLINK_CB(cb->skb).pid, | |
1266 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1267 | netdev, mac_addr, | |
1268 | &sinfo) < 0) | |
1269 | goto out; | |
1270 | ||
1271 | sta_idx++; | |
1272 | } | |
1273 | ||
1274 | ||
1275 | out: | |
1276 | cb->args[1] = sta_idx; | |
1277 | err = skb->len; | |
1278 | out_err_rtnl: | |
1279 | rtnl_unlock(); | |
1280 | out_err: | |
1281 | cfg80211_put_dev(dev); | |
1282 | out_put_netdev: | |
1283 | dev_put(netdev); | |
1284 | ||
1285 | return err; | |
2ec600d6 | 1286 | } |
fd5b74dc | 1287 | |
5727ef1b JB |
1288 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1289 | { | |
fd5b74dc JB |
1290 | struct cfg80211_registered_device *drv; |
1291 | int err; | |
1292 | struct net_device *dev; | |
2ec600d6 | 1293 | struct station_info sinfo; |
fd5b74dc JB |
1294 | struct sk_buff *msg; |
1295 | u8 *mac_addr = NULL; | |
1296 | ||
2ec600d6 | 1297 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1298 | |
1299 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1300 | return -EINVAL; | |
1301 | ||
1302 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1303 | ||
bba95fef | 1304 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
fd5b74dc JB |
1305 | if (err) |
1306 | return err; | |
1307 | ||
1308 | if (!drv->ops->get_station) { | |
1309 | err = -EOPNOTSUPP; | |
1310 | goto out; | |
1311 | } | |
1312 | ||
1313 | rtnl_lock(); | |
2ec600d6 | 1314 | err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc JB |
1315 | rtnl_unlock(); |
1316 | ||
2ec600d6 LCC |
1317 | if (err) |
1318 | goto out; | |
1319 | ||
fd5b74dc JB |
1320 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
1321 | if (!msg) | |
1322 | goto out; | |
1323 | ||
1324 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1325 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1326 | goto out_free; |
1327 | ||
1328 | err = genlmsg_unicast(msg, info->snd_pid); | |
1329 | goto out; | |
1330 | ||
1331 | out_free: | |
1332 | nlmsg_free(msg); | |
1333 | ||
1334 | out: | |
1335 | cfg80211_put_dev(drv); | |
1336 | dev_put(dev); | |
1337 | return err; | |
5727ef1b JB |
1338 | } |
1339 | ||
1340 | /* | |
1341 | * Get vlan interface making sure it is on the right wiphy. | |
1342 | */ | |
1343 | static int get_vlan(struct nlattr *vlanattr, | |
1344 | struct cfg80211_registered_device *rdev, | |
1345 | struct net_device **vlan) | |
1346 | { | |
1347 | *vlan = NULL; | |
1348 | ||
1349 | if (vlanattr) { | |
1350 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); | |
1351 | if (!*vlan) | |
1352 | return -ENODEV; | |
1353 | if (!(*vlan)->ieee80211_ptr) | |
1354 | return -EINVAL; | |
1355 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1356 | return -EINVAL; | |
1357 | } | |
1358 | return 0; | |
1359 | } | |
1360 | ||
1361 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1362 | { | |
1363 | struct cfg80211_registered_device *drv; | |
1364 | int err; | |
1365 | struct net_device *dev; | |
1366 | struct station_parameters params; | |
1367 | u8 *mac_addr = NULL; | |
1368 | ||
1369 | memset(¶ms, 0, sizeof(params)); | |
1370 | ||
1371 | params.listen_interval = -1; | |
1372 | ||
1373 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1374 | return -EINVAL; | |
1375 | ||
1376 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1377 | return -EINVAL; | |
1378 | ||
1379 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1380 | ||
1381 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1382 | params.supported_rates = | |
1383 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1384 | params.supported_rates_len = | |
1385 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1386 | } | |
1387 | ||
1388 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1389 | params.listen_interval = | |
1390 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1391 | ||
36aedc90 JM |
1392 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1393 | params.ht_capa = | |
1394 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
1395 | ||
5727ef1b JB |
1396 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], |
1397 | ¶ms.station_flags)) | |
1398 | return -EINVAL; | |
1399 | ||
2ec600d6 LCC |
1400 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1401 | params.plink_action = | |
1402 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1403 | ||
bba95fef | 1404 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b JB |
1405 | if (err) |
1406 | return err; | |
1407 | ||
1408 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1409 | if (err) | |
1410 | goto out; | |
1411 | ||
1412 | if (!drv->ops->change_station) { | |
1413 | err = -EOPNOTSUPP; | |
1414 | goto out; | |
1415 | } | |
1416 | ||
1417 | rtnl_lock(); | |
1418 | err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); | |
1419 | rtnl_unlock(); | |
1420 | ||
1421 | out: | |
1422 | if (params.vlan) | |
1423 | dev_put(params.vlan); | |
1424 | cfg80211_put_dev(drv); | |
1425 | dev_put(dev); | |
1426 | return err; | |
1427 | } | |
1428 | ||
1429 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1430 | { | |
1431 | struct cfg80211_registered_device *drv; | |
1432 | int err; | |
1433 | struct net_device *dev; | |
1434 | struct station_parameters params; | |
1435 | u8 *mac_addr = NULL; | |
1436 | ||
1437 | memset(¶ms, 0, sizeof(params)); | |
1438 | ||
1439 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1440 | return -EINVAL; | |
1441 | ||
1442 | if (!info->attrs[NL80211_ATTR_STA_AID]) | |
1443 | return -EINVAL; | |
1444 | ||
1445 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1446 | return -EINVAL; | |
1447 | ||
1448 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1449 | return -EINVAL; | |
1450 | ||
1451 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1452 | params.supported_rates = | |
1453 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1454 | params.supported_rates_len = | |
1455 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1456 | params.listen_interval = | |
1457 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
16f2e85d | 1458 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
36aedc90 JM |
1459 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1460 | params.ht_capa = | |
1461 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b JB |
1462 | |
1463 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1464 | ¶ms.station_flags)) | |
1465 | return -EINVAL; | |
1466 | ||
bba95fef | 1467 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b JB |
1468 | if (err) |
1469 | return err; | |
1470 | ||
1471 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1472 | if (err) | |
1473 | goto out; | |
1474 | ||
1475 | if (!drv->ops->add_station) { | |
1476 | err = -EOPNOTSUPP; | |
1477 | goto out; | |
1478 | } | |
1479 | ||
1480 | rtnl_lock(); | |
1481 | err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); | |
1482 | rtnl_unlock(); | |
1483 | ||
1484 | out: | |
1485 | if (params.vlan) | |
1486 | dev_put(params.vlan); | |
1487 | cfg80211_put_dev(drv); | |
1488 | dev_put(dev); | |
1489 | return err; | |
1490 | } | |
1491 | ||
1492 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
1493 | { | |
1494 | struct cfg80211_registered_device *drv; | |
1495 | int err; | |
1496 | struct net_device *dev; | |
1497 | u8 *mac_addr = NULL; | |
1498 | ||
1499 | if (info->attrs[NL80211_ATTR_MAC]) | |
1500 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1501 | ||
bba95fef | 1502 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b JB |
1503 | if (err) |
1504 | return err; | |
1505 | ||
1506 | if (!drv->ops->del_station) { | |
1507 | err = -EOPNOTSUPP; | |
1508 | goto out; | |
1509 | } | |
1510 | ||
1511 | rtnl_lock(); | |
1512 | err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); | |
1513 | rtnl_unlock(); | |
1514 | ||
1515 | out: | |
1516 | cfg80211_put_dev(drv); | |
1517 | dev_put(dev); | |
1518 | return err; | |
1519 | } | |
1520 | ||
2ec600d6 LCC |
1521 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
1522 | int flags, struct net_device *dev, | |
1523 | u8 *dst, u8 *next_hop, | |
1524 | struct mpath_info *pinfo) | |
1525 | { | |
1526 | void *hdr; | |
1527 | struct nlattr *pinfoattr; | |
1528 | ||
1529 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1530 | if (!hdr) | |
1531 | return -1; | |
1532 | ||
1533 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1534 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
1535 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
1536 | ||
1537 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
1538 | if (!pinfoattr) | |
1539 | goto nla_put_failure; | |
1540 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
1541 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
1542 | pinfo->frame_qlen); | |
1543 | if (pinfo->filled & MPATH_INFO_DSN) | |
1544 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, | |
1545 | pinfo->dsn); | |
1546 | if (pinfo->filled & MPATH_INFO_METRIC) | |
1547 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
1548 | pinfo->metric); | |
1549 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
1550 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
1551 | pinfo->exptime); | |
1552 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
1553 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
1554 | pinfo->flags); | |
1555 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
1556 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
1557 | pinfo->discovery_timeout); | |
1558 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
1559 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
1560 | pinfo->discovery_retries); | |
1561 | ||
1562 | nla_nest_end(msg, pinfoattr); | |
1563 | ||
1564 | return genlmsg_end(msg, hdr); | |
1565 | ||
1566 | nla_put_failure: | |
bc3ed28c TG |
1567 | genlmsg_cancel(msg, hdr); |
1568 | return -EMSGSIZE; | |
2ec600d6 LCC |
1569 | } |
1570 | ||
1571 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 1572 | struct netlink_callback *cb) |
2ec600d6 | 1573 | { |
2ec600d6 LCC |
1574 | struct mpath_info pinfo; |
1575 | struct cfg80211_registered_device *dev; | |
bba95fef | 1576 | struct net_device *netdev; |
2ec600d6 LCC |
1577 | u8 dst[ETH_ALEN]; |
1578 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
1579 | int ifidx = cb->args[0]; |
1580 | int path_idx = cb->args[1]; | |
2ec600d6 | 1581 | int err; |
2ec600d6 | 1582 | |
bba95fef JB |
1583 | if (!ifidx) { |
1584 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1585 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1586 | nl80211_policy); | |
1587 | if (err) | |
1588 | return err; | |
1589 | ||
1590 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
1591 | return -EINVAL; | |
1592 | ||
1593 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
1594 | if (!ifidx) | |
1595 | return -EINVAL; | |
1596 | } | |
1597 | ||
1598 | netdev = dev_get_by_index(&init_net, ifidx); | |
1599 | if (!netdev) | |
1600 | return -ENODEV; | |
1601 | ||
1602 | dev = cfg80211_get_dev_from_ifindex(ifidx); | |
1603 | if (IS_ERR(dev)) { | |
1604 | err = PTR_ERR(dev); | |
1605 | goto out_put_netdev; | |
1606 | } | |
1607 | ||
1608 | if (!dev->ops->dump_mpath) { | |
1609 | err = -ENOSYS; | |
1610 | goto out_err; | |
1611 | } | |
1612 | ||
1613 | rtnl_lock(); | |
1614 | ||
1615 | while (1) { | |
1616 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
1617 | dst, next_hop, &pinfo); | |
1618 | if (err == -ENOENT) | |
2ec600d6 | 1619 | break; |
bba95fef JB |
1620 | if (err) |
1621 | goto out_err_rtnl; | |
2ec600d6 | 1622 | |
bba95fef JB |
1623 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
1624 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1625 | netdev, dst, next_hop, | |
1626 | &pinfo) < 0) | |
1627 | goto out; | |
2ec600d6 | 1628 | |
bba95fef | 1629 | path_idx++; |
2ec600d6 | 1630 | } |
2ec600d6 | 1631 | |
2ec600d6 | 1632 | |
bba95fef JB |
1633 | out: |
1634 | cb->args[1] = path_idx; | |
1635 | err = skb->len; | |
1636 | out_err_rtnl: | |
1637 | rtnl_unlock(); | |
1638 | out_err: | |
1639 | cfg80211_put_dev(dev); | |
1640 | out_put_netdev: | |
1641 | dev_put(netdev); | |
1642 | ||
1643 | return err; | |
2ec600d6 LCC |
1644 | } |
1645 | ||
1646 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
1647 | { | |
1648 | struct cfg80211_registered_device *drv; | |
1649 | int err; | |
1650 | struct net_device *dev; | |
1651 | struct mpath_info pinfo; | |
1652 | struct sk_buff *msg; | |
1653 | u8 *dst = NULL; | |
1654 | u8 next_hop[ETH_ALEN]; | |
1655 | ||
1656 | memset(&pinfo, 0, sizeof(pinfo)); | |
1657 | ||
1658 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1659 | return -EINVAL; | |
1660 | ||
1661 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1662 | ||
bba95fef | 1663 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 LCC |
1664 | if (err) |
1665 | return err; | |
1666 | ||
1667 | if (!drv->ops->get_mpath) { | |
1668 | err = -EOPNOTSUPP; | |
1669 | goto out; | |
1670 | } | |
1671 | ||
1672 | rtnl_lock(); | |
1673 | err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); | |
1674 | rtnl_unlock(); | |
1675 | ||
1676 | if (err) | |
1677 | goto out; | |
1678 | ||
1679 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1680 | if (!msg) | |
1681 | goto out; | |
1682 | ||
1683 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
1684 | dev, dst, next_hop, &pinfo) < 0) | |
1685 | goto out_free; | |
1686 | ||
1687 | err = genlmsg_unicast(msg, info->snd_pid); | |
1688 | goto out; | |
1689 | ||
1690 | out_free: | |
1691 | nlmsg_free(msg); | |
1692 | ||
1693 | out: | |
1694 | cfg80211_put_dev(drv); | |
1695 | dev_put(dev); | |
1696 | return err; | |
1697 | } | |
1698 | ||
1699 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
1700 | { | |
1701 | struct cfg80211_registered_device *drv; | |
1702 | int err; | |
1703 | struct net_device *dev; | |
1704 | u8 *dst = NULL; | |
1705 | u8 *next_hop = NULL; | |
1706 | ||
1707 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1708 | return -EINVAL; | |
1709 | ||
1710 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1711 | return -EINVAL; | |
1712 | ||
1713 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1714 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1715 | ||
bba95fef | 1716 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 LCC |
1717 | if (err) |
1718 | return err; | |
1719 | ||
1720 | if (!drv->ops->change_mpath) { | |
1721 | err = -EOPNOTSUPP; | |
1722 | goto out; | |
1723 | } | |
1724 | ||
1725 | rtnl_lock(); | |
1726 | err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); | |
1727 | rtnl_unlock(); | |
1728 | ||
1729 | out: | |
1730 | cfg80211_put_dev(drv); | |
1731 | dev_put(dev); | |
1732 | return err; | |
1733 | } | |
1734 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
1735 | { | |
1736 | struct cfg80211_registered_device *drv; | |
1737 | int err; | |
1738 | struct net_device *dev; | |
1739 | u8 *dst = NULL; | |
1740 | u8 *next_hop = NULL; | |
1741 | ||
1742 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1743 | return -EINVAL; | |
1744 | ||
1745 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1746 | return -EINVAL; | |
1747 | ||
1748 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1749 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1750 | ||
bba95fef | 1751 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 LCC |
1752 | if (err) |
1753 | return err; | |
1754 | ||
1755 | if (!drv->ops->add_mpath) { | |
1756 | err = -EOPNOTSUPP; | |
1757 | goto out; | |
1758 | } | |
1759 | ||
1760 | rtnl_lock(); | |
1761 | err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); | |
1762 | rtnl_unlock(); | |
1763 | ||
1764 | out: | |
1765 | cfg80211_put_dev(drv); | |
1766 | dev_put(dev); | |
1767 | return err; | |
1768 | } | |
1769 | ||
1770 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
1771 | { | |
1772 | struct cfg80211_registered_device *drv; | |
1773 | int err; | |
1774 | struct net_device *dev; | |
1775 | u8 *dst = NULL; | |
1776 | ||
1777 | if (info->attrs[NL80211_ATTR_MAC]) | |
1778 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1779 | ||
bba95fef | 1780 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 LCC |
1781 | if (err) |
1782 | return err; | |
1783 | ||
1784 | if (!drv->ops->del_mpath) { | |
1785 | err = -EOPNOTSUPP; | |
1786 | goto out; | |
1787 | } | |
1788 | ||
1789 | rtnl_lock(); | |
1790 | err = drv->ops->del_mpath(&drv->wiphy, dev, dst); | |
1791 | rtnl_unlock(); | |
1792 | ||
1793 | out: | |
1794 | cfg80211_put_dev(drv); | |
1795 | dev_put(dev); | |
1796 | return err; | |
1797 | } | |
1798 | ||
9f1ba906 JM |
1799 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
1800 | { | |
1801 | struct cfg80211_registered_device *drv; | |
1802 | int err; | |
1803 | struct net_device *dev; | |
1804 | struct bss_parameters params; | |
1805 | ||
1806 | memset(¶ms, 0, sizeof(params)); | |
1807 | /* default to not changing parameters */ | |
1808 | params.use_cts_prot = -1; | |
1809 | params.use_short_preamble = -1; | |
1810 | params.use_short_slot_time = -1; | |
1811 | ||
1812 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
1813 | params.use_cts_prot = | |
1814 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
1815 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
1816 | params.use_short_preamble = | |
1817 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
1818 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
1819 | params.use_short_slot_time = | |
1820 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
1821 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
1822 | params.basic_rates = | |
1823 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
1824 | params.basic_rates_len = | |
1825 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
1826 | } | |
9f1ba906 JM |
1827 | |
1828 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
1829 | if (err) | |
1830 | return err; | |
1831 | ||
1832 | if (!drv->ops->change_bss) { | |
1833 | err = -EOPNOTSUPP; | |
1834 | goto out; | |
1835 | } | |
1836 | ||
1837 | rtnl_lock(); | |
1838 | err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms); | |
1839 | rtnl_unlock(); | |
1840 | ||
1841 | out: | |
1842 | cfg80211_put_dev(drv); | |
1843 | dev_put(dev); | |
1844 | return err; | |
1845 | } | |
1846 | ||
b2e1b302 LR |
1847 | static const struct nla_policy |
1848 | reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
1849 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
1850 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
1851 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
1852 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
1853 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
1854 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
1855 | }; | |
1856 | ||
1857 | static int parse_reg_rule(struct nlattr *tb[], | |
1858 | struct ieee80211_reg_rule *reg_rule) | |
1859 | { | |
1860 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
1861 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
1862 | ||
1863 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
1864 | return -EINVAL; | |
1865 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
1866 | return -EINVAL; | |
1867 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
1868 | return -EINVAL; | |
1869 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
1870 | return -EINVAL; | |
1871 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
1872 | return -EINVAL; | |
1873 | ||
1874 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
1875 | ||
1876 | freq_range->start_freq_khz = | |
1877 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
1878 | freq_range->end_freq_khz = | |
1879 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
1880 | freq_range->max_bandwidth_khz = | |
1881 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
1882 | ||
1883 | power_rule->max_eirp = | |
1884 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
1885 | ||
1886 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
1887 | power_rule->max_antenna_gain = | |
1888 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
1889 | ||
1890 | return 0; | |
1891 | } | |
1892 | ||
1893 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
1894 | { | |
1895 | int r; | |
1896 | char *data = NULL; | |
1897 | ||
1898 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
1899 | return -EINVAL; | |
1900 | ||
1901 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
1902 | ||
1903 | #ifdef CONFIG_WIRELESS_OLD_REGULATORY | |
1904 | /* We ignore world regdom requests with the old regdom setup */ | |
1905 | if (is_world_regdom(data)) | |
1906 | return -EINVAL; | |
1907 | #endif | |
1908 | mutex_lock(&cfg80211_drv_mutex); | |
3f2355cb | 1909 | r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data, 0, ENVIRON_ANY); |
b2e1b302 | 1910 | mutex_unlock(&cfg80211_drv_mutex); |
d81c2d9c LR |
1911 | /* This means the regulatory domain was already set, however |
1912 | * we don't want to confuse userspace with a "successful error" | |
1913 | * message so lets just treat it as a success */ | |
1914 | if (r == -EALREADY) | |
1915 | r = 0; | |
b2e1b302 LR |
1916 | return r; |
1917 | } | |
1918 | ||
93da9cc1 | 1919 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
1920 | struct genl_info *info) | |
1921 | { | |
1922 | struct cfg80211_registered_device *drv; | |
1923 | struct mesh_config cur_params; | |
1924 | int err; | |
1925 | struct net_device *dev; | |
1926 | void *hdr; | |
1927 | struct nlattr *pinfoattr; | |
1928 | struct sk_buff *msg; | |
1929 | ||
1930 | /* Look up our device */ | |
1931 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
1932 | if (err) | |
1933 | return err; | |
1934 | ||
1935 | /* Get the mesh params */ | |
1936 | rtnl_lock(); | |
1937 | err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params); | |
1938 | rtnl_unlock(); | |
1939 | if (err) | |
1940 | goto out; | |
1941 | ||
1942 | /* Draw up a netlink message to send back */ | |
1943 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1944 | if (!msg) { | |
1945 | err = -ENOBUFS; | |
1946 | goto out; | |
1947 | } | |
1948 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1949 | NL80211_CMD_GET_MESH_PARAMS); | |
1950 | if (!hdr) | |
1951 | goto nla_put_failure; | |
1952 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
1953 | if (!pinfoattr) | |
1954 | goto nla_put_failure; | |
1955 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1956 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
1957 | cur_params.dot11MeshRetryTimeout); | |
1958 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
1959 | cur_params.dot11MeshConfirmTimeout); | |
1960 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
1961 | cur_params.dot11MeshHoldingTimeout); | |
1962 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
1963 | cur_params.dot11MeshMaxPeerLinks); | |
1964 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
1965 | cur_params.dot11MeshMaxRetries); | |
1966 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
1967 | cur_params.dot11MeshTTL); | |
1968 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
1969 | cur_params.auto_open_plinks); | |
1970 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
1971 | cur_params.dot11MeshHWMPmaxPREQretries); | |
1972 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
1973 | cur_params.path_refresh_time); | |
1974 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
1975 | cur_params.min_discovery_timeout); | |
1976 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
1977 | cur_params.dot11MeshHWMPactivePathTimeout); | |
1978 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
1979 | cur_params.dot11MeshHWMPpreqMinInterval); | |
1980 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
1981 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
1982 | nla_nest_end(msg, pinfoattr); | |
1983 | genlmsg_end(msg, hdr); | |
1984 | err = genlmsg_unicast(msg, info->snd_pid); | |
1985 | goto out; | |
1986 | ||
1987 | nla_put_failure: | |
1988 | genlmsg_cancel(msg, hdr); | |
1989 | err = -EMSGSIZE; | |
1990 | out: | |
1991 | /* Cleanup */ | |
1992 | cfg80211_put_dev(drv); | |
1993 | dev_put(dev); | |
1994 | return err; | |
1995 | } | |
1996 | ||
1997 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
1998 | do {\ | |
1999 | if (table[attr_num]) {\ | |
2000 | cfg.param = nla_fn(table[attr_num]); \ | |
2001 | mask |= (1 << (attr_num - 1)); \ | |
2002 | } \ | |
2003 | } while (0);\ | |
2004 | ||
2005 | static struct nla_policy | |
2006 | nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = { | |
2007 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, | |
2008 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2009 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2010 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2011 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2012 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2013 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2014 | ||
2015 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2016 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2017 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2018 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2019 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2020 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2021 | }; | |
2022 | ||
2023 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2024 | { | |
2025 | int err; | |
2026 | u32 mask; | |
2027 | struct cfg80211_registered_device *drv; | |
2028 | struct net_device *dev; | |
2029 | struct mesh_config cfg; | |
2030 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2031 | struct nlattr *parent_attr; | |
2032 | ||
2033 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2034 | if (!parent_attr) | |
2035 | return -EINVAL; | |
2036 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2037 | parent_attr, nl80211_meshconf_params_policy)) | |
2038 | return -EINVAL; | |
2039 | ||
2040 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2041 | if (err) | |
2042 | return err; | |
2043 | ||
2044 | /* This makes sure that there aren't more than 32 mesh config | |
2045 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2046 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2047 | ||
2048 | /* Fill in the params struct */ | |
2049 | mask = 0; | |
2050 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2051 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2052 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2053 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2054 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2055 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2056 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2057 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2058 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2059 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2060 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2061 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2062 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2063 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2064 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2065 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2066 | nla_get_u8); | |
2067 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2068 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2069 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2070 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2071 | nla_get_u16); | |
2072 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2073 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2074 | nla_get_u32); | |
2075 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2076 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2077 | nla_get_u16); | |
2078 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2079 | dot11MeshHWMPnetDiameterTraversalTime, | |
2080 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2081 | nla_get_u16); | |
2082 | ||
2083 | /* Apply changes */ | |
2084 | rtnl_lock(); | |
2085 | err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask); | |
2086 | rtnl_unlock(); | |
2087 | ||
2088 | /* cleanup */ | |
2089 | cfg80211_put_dev(drv); | |
2090 | dev_put(dev); | |
2091 | return err; | |
2092 | } | |
2093 | ||
2094 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2095 | ||
b2e1b302 LR |
2096 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2097 | { | |
2098 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2099 | struct nlattr *nl_reg_rule; | |
2100 | char *alpha2 = NULL; | |
2101 | int rem_reg_rules = 0, r = 0; | |
2102 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2103 | struct ieee80211_regdomain *rd = NULL; | |
2104 | ||
2105 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2106 | return -EINVAL; | |
2107 | ||
2108 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2109 | return -EINVAL; | |
2110 | ||
2111 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2112 | ||
2113 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2114 | rem_reg_rules) { | |
2115 | num_rules++; | |
2116 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
2117 | goto bad_reg; | |
2118 | } | |
2119 | ||
2120 | if (!reg_is_valid_request(alpha2)) | |
2121 | return -EINVAL; | |
2122 | ||
2123 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2124 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2125 | ||
2126 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
2127 | if (!rd) | |
2128 | return -ENOMEM; | |
2129 | ||
2130 | rd->n_reg_rules = num_rules; | |
2131 | rd->alpha2[0] = alpha2[0]; | |
2132 | rd->alpha2[1] = alpha2[1]; | |
2133 | ||
2134 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2135 | rem_reg_rules) { | |
2136 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2137 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2138 | reg_rule_policy); | |
2139 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2140 | if (r) | |
2141 | goto bad_reg; | |
2142 | ||
2143 | rule_idx++; | |
2144 | ||
2145 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) | |
2146 | goto bad_reg; | |
2147 | } | |
2148 | ||
2149 | BUG_ON(rule_idx != num_rules); | |
2150 | ||
2151 | mutex_lock(&cfg80211_drv_mutex); | |
2152 | r = set_regdom(rd); | |
2153 | mutex_unlock(&cfg80211_drv_mutex); | |
b2e1b302 LR |
2154 | return r; |
2155 | ||
d2372b31 | 2156 | bad_reg: |
b2e1b302 LR |
2157 | kfree(rd); |
2158 | return -EINVAL; | |
2159 | } | |
2160 | ||
9aed3cc1 JM |
2161 | static int nl80211_set_mgmt_extra_ie(struct sk_buff *skb, |
2162 | struct genl_info *info) | |
2163 | { | |
2164 | struct cfg80211_registered_device *drv; | |
2165 | int err; | |
2166 | struct net_device *dev; | |
2167 | struct mgmt_extra_ie_params params; | |
2168 | ||
2169 | memset(¶ms, 0, sizeof(params)); | |
2170 | ||
2171 | if (!info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) | |
2172 | return -EINVAL; | |
2173 | params.subtype = nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]); | |
2174 | if (params.subtype > 15) | |
2175 | return -EINVAL; /* FC Subtype field is 4 bits (0..15) */ | |
2176 | ||
2177 | if (info->attrs[NL80211_ATTR_IE]) { | |
2178 | params.ies = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2179 | params.ies_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2180 | } | |
2181 | ||
2182 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2183 | if (err) | |
2184 | return err; | |
2185 | ||
2186 | if (drv->ops->set_mgmt_extra_ie) { | |
2187 | rtnl_lock(); | |
2188 | err = drv->ops->set_mgmt_extra_ie(&drv->wiphy, dev, ¶ms); | |
2189 | rtnl_unlock(); | |
2190 | } else | |
2191 | err = -EOPNOTSUPP; | |
2192 | ||
2193 | cfg80211_put_dev(drv); | |
2194 | dev_put(dev); | |
2195 | return err; | |
2196 | } | |
2197 | ||
55682965 JB |
2198 | static struct genl_ops nl80211_ops[] = { |
2199 | { | |
2200 | .cmd = NL80211_CMD_GET_WIPHY, | |
2201 | .doit = nl80211_get_wiphy, | |
2202 | .dumpit = nl80211_dump_wiphy, | |
2203 | .policy = nl80211_policy, | |
2204 | /* can be retrieved by unprivileged users */ | |
2205 | }, | |
2206 | { | |
2207 | .cmd = NL80211_CMD_SET_WIPHY, | |
2208 | .doit = nl80211_set_wiphy, | |
2209 | .policy = nl80211_policy, | |
2210 | .flags = GENL_ADMIN_PERM, | |
2211 | }, | |
2212 | { | |
2213 | .cmd = NL80211_CMD_GET_INTERFACE, | |
2214 | .doit = nl80211_get_interface, | |
2215 | .dumpit = nl80211_dump_interface, | |
2216 | .policy = nl80211_policy, | |
2217 | /* can be retrieved by unprivileged users */ | |
2218 | }, | |
2219 | { | |
2220 | .cmd = NL80211_CMD_SET_INTERFACE, | |
2221 | .doit = nl80211_set_interface, | |
2222 | .policy = nl80211_policy, | |
2223 | .flags = GENL_ADMIN_PERM, | |
2224 | }, | |
2225 | { | |
2226 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
2227 | .doit = nl80211_new_interface, | |
2228 | .policy = nl80211_policy, | |
2229 | .flags = GENL_ADMIN_PERM, | |
2230 | }, | |
2231 | { | |
2232 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
2233 | .doit = nl80211_del_interface, | |
2234 | .policy = nl80211_policy, | |
41ade00f JB |
2235 | .flags = GENL_ADMIN_PERM, |
2236 | }, | |
2237 | { | |
2238 | .cmd = NL80211_CMD_GET_KEY, | |
2239 | .doit = nl80211_get_key, | |
2240 | .policy = nl80211_policy, | |
2241 | .flags = GENL_ADMIN_PERM, | |
2242 | }, | |
2243 | { | |
2244 | .cmd = NL80211_CMD_SET_KEY, | |
2245 | .doit = nl80211_set_key, | |
2246 | .policy = nl80211_policy, | |
2247 | .flags = GENL_ADMIN_PERM, | |
2248 | }, | |
2249 | { | |
2250 | .cmd = NL80211_CMD_NEW_KEY, | |
2251 | .doit = nl80211_new_key, | |
2252 | .policy = nl80211_policy, | |
2253 | .flags = GENL_ADMIN_PERM, | |
2254 | }, | |
2255 | { | |
2256 | .cmd = NL80211_CMD_DEL_KEY, | |
2257 | .doit = nl80211_del_key, | |
2258 | .policy = nl80211_policy, | |
55682965 JB |
2259 | .flags = GENL_ADMIN_PERM, |
2260 | }, | |
ed1b6cc7 JB |
2261 | { |
2262 | .cmd = NL80211_CMD_SET_BEACON, | |
2263 | .policy = nl80211_policy, | |
2264 | .flags = GENL_ADMIN_PERM, | |
2265 | .doit = nl80211_addset_beacon, | |
2266 | }, | |
2267 | { | |
2268 | .cmd = NL80211_CMD_NEW_BEACON, | |
2269 | .policy = nl80211_policy, | |
2270 | .flags = GENL_ADMIN_PERM, | |
2271 | .doit = nl80211_addset_beacon, | |
2272 | }, | |
2273 | { | |
2274 | .cmd = NL80211_CMD_DEL_BEACON, | |
2275 | .policy = nl80211_policy, | |
2276 | .flags = GENL_ADMIN_PERM, | |
2277 | .doit = nl80211_del_beacon, | |
2278 | }, | |
5727ef1b JB |
2279 | { |
2280 | .cmd = NL80211_CMD_GET_STATION, | |
2281 | .doit = nl80211_get_station, | |
2ec600d6 | 2282 | .dumpit = nl80211_dump_station, |
5727ef1b JB |
2283 | .policy = nl80211_policy, |
2284 | .flags = GENL_ADMIN_PERM, | |
2285 | }, | |
2286 | { | |
2287 | .cmd = NL80211_CMD_SET_STATION, | |
2288 | .doit = nl80211_set_station, | |
2289 | .policy = nl80211_policy, | |
2290 | .flags = GENL_ADMIN_PERM, | |
2291 | }, | |
2292 | { | |
2293 | .cmd = NL80211_CMD_NEW_STATION, | |
2294 | .doit = nl80211_new_station, | |
2295 | .policy = nl80211_policy, | |
2296 | .flags = GENL_ADMIN_PERM, | |
2297 | }, | |
2298 | { | |
2299 | .cmd = NL80211_CMD_DEL_STATION, | |
2300 | .doit = nl80211_del_station, | |
2301 | .policy = nl80211_policy, | |
2ec600d6 LCC |
2302 | .flags = GENL_ADMIN_PERM, |
2303 | }, | |
2304 | { | |
2305 | .cmd = NL80211_CMD_GET_MPATH, | |
2306 | .doit = nl80211_get_mpath, | |
2307 | .dumpit = nl80211_dump_mpath, | |
2308 | .policy = nl80211_policy, | |
2309 | .flags = GENL_ADMIN_PERM, | |
2310 | }, | |
2311 | { | |
2312 | .cmd = NL80211_CMD_SET_MPATH, | |
2313 | .doit = nl80211_set_mpath, | |
2314 | .policy = nl80211_policy, | |
2315 | .flags = GENL_ADMIN_PERM, | |
2316 | }, | |
2317 | { | |
2318 | .cmd = NL80211_CMD_NEW_MPATH, | |
2319 | .doit = nl80211_new_mpath, | |
2320 | .policy = nl80211_policy, | |
2321 | .flags = GENL_ADMIN_PERM, | |
2322 | }, | |
2323 | { | |
2324 | .cmd = NL80211_CMD_DEL_MPATH, | |
2325 | .doit = nl80211_del_mpath, | |
2326 | .policy = nl80211_policy, | |
9f1ba906 JM |
2327 | .flags = GENL_ADMIN_PERM, |
2328 | }, | |
2329 | { | |
2330 | .cmd = NL80211_CMD_SET_BSS, | |
2331 | .doit = nl80211_set_bss, | |
2332 | .policy = nl80211_policy, | |
b2e1b302 LR |
2333 | .flags = GENL_ADMIN_PERM, |
2334 | }, | |
2335 | { | |
2336 | .cmd = NL80211_CMD_SET_REG, | |
2337 | .doit = nl80211_set_reg, | |
2338 | .policy = nl80211_policy, | |
2339 | .flags = GENL_ADMIN_PERM, | |
2340 | }, | |
2341 | { | |
2342 | .cmd = NL80211_CMD_REQ_SET_REG, | |
2343 | .doit = nl80211_req_set_reg, | |
2344 | .policy = nl80211_policy, | |
93da9cc1 | 2345 | .flags = GENL_ADMIN_PERM, |
2346 | }, | |
2347 | { | |
2348 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
2349 | .doit = nl80211_get_mesh_params, | |
2350 | .policy = nl80211_policy, | |
2351 | /* can be retrieved by unprivileged users */ | |
2352 | }, | |
2353 | { | |
2354 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
2355 | .doit = nl80211_set_mesh_params, | |
2356 | .policy = nl80211_policy, | |
9aed3cc1 JM |
2357 | .flags = GENL_ADMIN_PERM, |
2358 | }, | |
2359 | { | |
2360 | .cmd = NL80211_CMD_SET_MGMT_EXTRA_IE, | |
2361 | .doit = nl80211_set_mgmt_extra_ie, | |
2362 | .policy = nl80211_policy, | |
5727ef1b JB |
2363 | .flags = GENL_ADMIN_PERM, |
2364 | }, | |
55682965 JB |
2365 | }; |
2366 | ||
2367 | /* multicast groups */ | |
2368 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
2369 | .name = "config", | |
2370 | }; | |
2371 | ||
2372 | /* notification functions */ | |
2373 | ||
2374 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
2375 | { | |
2376 | struct sk_buff *msg; | |
2377 | ||
2378 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
2379 | if (!msg) | |
2380 | return; | |
2381 | ||
2382 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
2383 | nlmsg_free(msg); | |
2384 | return; | |
2385 | } | |
2386 | ||
2387 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
2388 | } | |
2389 | ||
2390 | /* initialisation/exit functions */ | |
2391 | ||
2392 | int nl80211_init(void) | |
2393 | { | |
2394 | int err, i; | |
2395 | ||
2396 | err = genl_register_family(&nl80211_fam); | |
2397 | if (err) | |
2398 | return err; | |
2399 | ||
2400 | for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { | |
2401 | err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); | |
2402 | if (err) | |
2403 | goto err_out; | |
2404 | } | |
2405 | ||
2406 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); | |
2407 | if (err) | |
2408 | goto err_out; | |
2409 | ||
2410 | return 0; | |
2411 | err_out: | |
2412 | genl_unregister_family(&nl80211_fam); | |
2413 | return err; | |
2414 | } | |
2415 | ||
2416 | void nl80211_exit(void) | |
2417 | { | |
2418 | genl_unregister_family(&nl80211_fam); | |
2419 | } |