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Commit | Line | Data |
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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> | |
55682965 JB |
10 | #include <linux/list.h> |
11 | #include <linux/if_ether.h> | |
12 | #include <linux/ieee80211.h> | |
13 | #include <linux/nl80211.h> | |
14 | #include <linux/rtnetlink.h> | |
15 | #include <linux/netlink.h> | |
2a519311 | 16 | #include <linux/etherdevice.h> |
55682965 JB |
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 }, | |
2a519311 JB |
112 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
113 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
114 | |
115 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
116 | .len = IEEE80211_MAX_SSID_LEN }, | |
117 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
118 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
55682965 JB |
119 | }; |
120 | ||
f4a11bb0 JB |
121 | /* IE validation */ |
122 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
123 | { | |
124 | const u8 *pos; | |
125 | int len; | |
126 | ||
127 | if (!attr) | |
128 | return true; | |
129 | ||
130 | pos = nla_data(attr); | |
131 | len = nla_len(attr); | |
132 | ||
133 | while (len) { | |
134 | u8 elemlen; | |
135 | ||
136 | if (len < 2) | |
137 | return false; | |
138 | len -= 2; | |
139 | ||
140 | elemlen = pos[1]; | |
141 | if (elemlen > len) | |
142 | return false; | |
143 | ||
144 | len -= elemlen; | |
145 | pos += 2 + elemlen; | |
146 | } | |
147 | ||
148 | return true; | |
149 | } | |
150 | ||
55682965 JB |
151 | /* message building helper */ |
152 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
153 | int flags, u8 cmd) | |
154 | { | |
155 | /* since there is no private header just add the generic one */ | |
156 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
157 | } | |
158 | ||
5dab3b8a LR |
159 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
160 | struct ieee80211_channel *chan) | |
161 | { | |
162 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
163 | chan->center_freq); | |
164 | ||
165 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
166 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
167 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
168 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
169 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
170 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
171 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
172 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
173 | ||
174 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
175 | DBM_TO_MBM(chan->max_power)); | |
176 | ||
177 | return 0; | |
178 | ||
179 | nla_put_failure: | |
180 | return -ENOBUFS; | |
181 | } | |
182 | ||
55682965 JB |
183 | /* netlink command implementations */ |
184 | ||
185 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
186 | struct cfg80211_registered_device *dev) | |
187 | { | |
188 | void *hdr; | |
ee688b00 JB |
189 | struct nlattr *nl_bands, *nl_band; |
190 | struct nlattr *nl_freqs, *nl_freq; | |
191 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 192 | struct nlattr *nl_modes; |
8fdc621d | 193 | struct nlattr *nl_cmds; |
ee688b00 JB |
194 | enum ieee80211_band band; |
195 | struct ieee80211_channel *chan; | |
196 | struct ieee80211_rate *rate; | |
197 | int i; | |
f59ac048 | 198 | u16 ifmodes = dev->wiphy.interface_modes; |
55682965 JB |
199 | |
200 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
201 | if (!hdr) | |
202 | return -1; | |
203 | ||
b5850a7a | 204 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 205 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
2a519311 JB |
206 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
207 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
208 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
209 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 210 | |
f59ac048 LR |
211 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
212 | if (!nl_modes) | |
213 | goto nla_put_failure; | |
214 | ||
215 | i = 0; | |
216 | while (ifmodes) { | |
217 | if (ifmodes & 1) | |
218 | NLA_PUT_FLAG(msg, i); | |
219 | ifmodes >>= 1; | |
220 | i++; | |
221 | } | |
222 | ||
223 | nla_nest_end(msg, nl_modes); | |
224 | ||
ee688b00 JB |
225 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
226 | if (!nl_bands) | |
227 | goto nla_put_failure; | |
228 | ||
229 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
230 | if (!dev->wiphy.bands[band]) | |
231 | continue; | |
232 | ||
233 | nl_band = nla_nest_start(msg, band); | |
234 | if (!nl_band) | |
235 | goto nla_put_failure; | |
236 | ||
d51626df JB |
237 | /* add HT info */ |
238 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
239 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
240 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
241 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
242 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
243 | dev->wiphy.bands[band]->ht_cap.cap); | |
244 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
245 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
246 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
247 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
248 | } | |
249 | ||
ee688b00 JB |
250 | /* add frequencies */ |
251 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
252 | if (!nl_freqs) | |
253 | goto nla_put_failure; | |
254 | ||
255 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
256 | nl_freq = nla_nest_start(msg, i); | |
257 | if (!nl_freq) | |
258 | goto nla_put_failure; | |
259 | ||
260 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
261 | |
262 | if (nl80211_msg_put_channel(msg, chan)) | |
263 | goto nla_put_failure; | |
e2f367f2 | 264 | |
ee688b00 JB |
265 | nla_nest_end(msg, nl_freq); |
266 | } | |
267 | ||
268 | nla_nest_end(msg, nl_freqs); | |
269 | ||
270 | /* add bitrates */ | |
271 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
272 | if (!nl_rates) | |
273 | goto nla_put_failure; | |
274 | ||
275 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
276 | nl_rate = nla_nest_start(msg, i); | |
277 | if (!nl_rate) | |
278 | goto nla_put_failure; | |
279 | ||
280 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
281 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
282 | rate->bitrate); | |
283 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
284 | NLA_PUT_FLAG(msg, | |
285 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
286 | ||
287 | nla_nest_end(msg, nl_rate); | |
288 | } | |
289 | ||
290 | nla_nest_end(msg, nl_rates); | |
291 | ||
292 | nla_nest_end(msg, nl_band); | |
293 | } | |
294 | nla_nest_end(msg, nl_bands); | |
295 | ||
8fdc621d JB |
296 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
297 | if (!nl_cmds) | |
298 | goto nla_put_failure; | |
299 | ||
300 | i = 0; | |
301 | #define CMD(op, n) \ | |
302 | do { \ | |
303 | if (dev->ops->op) { \ | |
304 | i++; \ | |
305 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
306 | } \ | |
307 | } while (0) | |
308 | ||
309 | CMD(add_virtual_intf, NEW_INTERFACE); | |
310 | CMD(change_virtual_intf, SET_INTERFACE); | |
311 | CMD(add_key, NEW_KEY); | |
312 | CMD(add_beacon, NEW_BEACON); | |
313 | CMD(add_station, NEW_STATION); | |
314 | CMD(add_mpath, NEW_MPATH); | |
315 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
316 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
317 | CMD(auth, AUTHENTICATE); |
318 | CMD(assoc, ASSOCIATE); | |
319 | CMD(deauth, DEAUTHENTICATE); | |
320 | CMD(disassoc, DISASSOCIATE); | |
8fdc621d JB |
321 | |
322 | #undef CMD | |
323 | nla_nest_end(msg, nl_cmds); | |
324 | ||
55682965 JB |
325 | return genlmsg_end(msg, hdr); |
326 | ||
327 | nla_put_failure: | |
bc3ed28c TG |
328 | genlmsg_cancel(msg, hdr); |
329 | return -EMSGSIZE; | |
55682965 JB |
330 | } |
331 | ||
332 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
333 | { | |
334 | int idx = 0; | |
335 | int start = cb->args[0]; | |
336 | struct cfg80211_registered_device *dev; | |
337 | ||
a1794390 | 338 | mutex_lock(&cfg80211_mutex); |
55682965 | 339 | list_for_each_entry(dev, &cfg80211_drv_list, list) { |
b4637271 | 340 | if (++idx <= start) |
55682965 JB |
341 | continue; |
342 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
343 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
344 | dev) < 0) { |
345 | idx--; | |
55682965 | 346 | break; |
b4637271 | 347 | } |
55682965 | 348 | } |
a1794390 | 349 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
350 | |
351 | cb->args[0] = idx; | |
352 | ||
353 | return skb->len; | |
354 | } | |
355 | ||
356 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
357 | { | |
358 | struct sk_buff *msg; | |
359 | struct cfg80211_registered_device *dev; | |
360 | ||
361 | dev = cfg80211_get_dev_from_info(info); | |
362 | if (IS_ERR(dev)) | |
363 | return PTR_ERR(dev); | |
364 | ||
365 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
366 | if (!msg) | |
367 | goto out_err; | |
368 | ||
369 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
370 | goto out_free; | |
371 | ||
372 | cfg80211_put_dev(dev); | |
373 | ||
374 | return genlmsg_unicast(msg, info->snd_pid); | |
375 | ||
376 | out_free: | |
377 | nlmsg_free(msg); | |
378 | out_err: | |
379 | cfg80211_put_dev(dev); | |
380 | return -ENOBUFS; | |
381 | } | |
382 | ||
31888487 JM |
383 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
384 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
385 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
386 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
387 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
388 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
389 | }; | |
390 | ||
391 | static int parse_txq_params(struct nlattr *tb[], | |
392 | struct ieee80211_txq_params *txq_params) | |
393 | { | |
394 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
395 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
396 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
397 | return -EINVAL; | |
398 | ||
399 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
400 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
401 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
402 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
403 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
55682965 JB |
408 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
409 | { | |
410 | struct cfg80211_registered_device *rdev; | |
31888487 JM |
411 | int result = 0, rem_txq_params = 0; |
412 | struct nlattr *nl_txq_params; | |
55682965 | 413 | |
4bbf4d56 | 414 | rtnl_lock(); |
55682965 | 415 | |
4bbf4d56 JB |
416 | mutex_lock(&cfg80211_mutex); |
417 | ||
418 | rdev = __cfg80211_drv_from_info(info); | |
419 | if (IS_ERR(rdev)) { | |
420 | result = PTR_ERR(rdev); | |
421 | goto unlock; | |
422 | } | |
423 | ||
424 | mutex_lock(&rdev->mtx); | |
425 | ||
426 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
427 | result = cfg80211_dev_rename( |
428 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
429 | |
430 | mutex_unlock(&cfg80211_mutex); | |
431 | ||
432 | if (result) | |
433 | goto bad_res; | |
31888487 JM |
434 | |
435 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
436 | struct ieee80211_txq_params txq_params; | |
437 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
438 | ||
439 | if (!rdev->ops->set_txq_params) { | |
440 | result = -EOPNOTSUPP; | |
441 | goto bad_res; | |
442 | } | |
443 | ||
444 | nla_for_each_nested(nl_txq_params, | |
445 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
446 | rem_txq_params) { | |
447 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
448 | nla_data(nl_txq_params), | |
449 | nla_len(nl_txq_params), | |
450 | txq_params_policy); | |
451 | result = parse_txq_params(tb, &txq_params); | |
452 | if (result) | |
453 | goto bad_res; | |
454 | ||
455 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
456 | &txq_params); | |
457 | if (result) | |
458 | goto bad_res; | |
459 | } | |
460 | } | |
55682965 | 461 | |
72bdcf34 | 462 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
094d05dc | 463 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
72bdcf34 | 464 | struct ieee80211_channel *chan; |
306d6112 | 465 | struct ieee80211_sta_ht_cap *ht_cap; |
72bdcf34 JM |
466 | u32 freq, sec_freq; |
467 | ||
468 | if (!rdev->ops->set_channel) { | |
469 | result = -EOPNOTSUPP; | |
470 | goto bad_res; | |
471 | } | |
472 | ||
306d6112 JB |
473 | result = -EINVAL; |
474 | ||
094d05dc S |
475 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
476 | channel_type = nla_get_u32(info->attrs[ | |
477 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
478 | if (channel_type != NL80211_CHAN_NO_HT && | |
479 | channel_type != NL80211_CHAN_HT20 && | |
480 | channel_type != NL80211_CHAN_HT40PLUS && | |
481 | channel_type != NL80211_CHAN_HT40MINUS) | |
72bdcf34 | 482 | goto bad_res; |
72bdcf34 JM |
483 | } |
484 | ||
485 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
486 | chan = ieee80211_get_channel(&rdev->wiphy, freq); | |
306d6112 JB |
487 | |
488 | /* Primary channel not allowed */ | |
489 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) | |
72bdcf34 | 490 | goto bad_res; |
306d6112 | 491 | |
094d05dc | 492 | if (channel_type == NL80211_CHAN_HT40MINUS) |
72bdcf34 | 493 | sec_freq = freq - 20; |
094d05dc | 494 | else if (channel_type == NL80211_CHAN_HT40PLUS) |
72bdcf34 JM |
495 | sec_freq = freq + 20; |
496 | else | |
497 | sec_freq = 0; | |
498 | ||
306d6112 JB |
499 | ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap; |
500 | ||
501 | /* no HT capabilities */ | |
094d05dc | 502 | if (channel_type != NL80211_CHAN_NO_HT && |
306d6112 JB |
503 | !ht_cap->ht_supported) |
504 | goto bad_res; | |
505 | ||
72bdcf34 JM |
506 | if (sec_freq) { |
507 | struct ieee80211_channel *schan; | |
306d6112 JB |
508 | |
509 | /* no 40 MHz capabilities */ | |
510 | if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) || | |
511 | (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)) | |
512 | goto bad_res; | |
513 | ||
72bdcf34 | 514 | schan = ieee80211_get_channel(&rdev->wiphy, sec_freq); |
306d6112 JB |
515 | |
516 | /* Secondary channel not allowed */ | |
517 | if (!schan || schan->flags & IEEE80211_CHAN_DISABLED) | |
72bdcf34 | 518 | goto bad_res; |
72bdcf34 JM |
519 | } |
520 | ||
521 | result = rdev->ops->set_channel(&rdev->wiphy, chan, | |
094d05dc | 522 | channel_type); |
72bdcf34 JM |
523 | if (result) |
524 | goto bad_res; | |
525 | } | |
526 | ||
527 | ||
306d6112 | 528 | bad_res: |
4bbf4d56 JB |
529 | mutex_unlock(&rdev->mtx); |
530 | unlock: | |
531 | rtnl_unlock(); | |
55682965 JB |
532 | return result; |
533 | } | |
534 | ||
535 | ||
536 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
537 | struct net_device *dev) | |
538 | { | |
539 | void *hdr; | |
540 | ||
541 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
542 | if (!hdr) | |
543 | return -1; | |
544 | ||
545 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
546 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); | |
60719ffd | 547 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
55682965 JB |
548 | return genlmsg_end(msg, hdr); |
549 | ||
550 | nla_put_failure: | |
bc3ed28c TG |
551 | genlmsg_cancel(msg, hdr); |
552 | return -EMSGSIZE; | |
55682965 JB |
553 | } |
554 | ||
555 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
556 | { | |
557 | int wp_idx = 0; | |
558 | int if_idx = 0; | |
559 | int wp_start = cb->args[0]; | |
560 | int if_start = cb->args[1]; | |
561 | struct cfg80211_registered_device *dev; | |
562 | struct wireless_dev *wdev; | |
563 | ||
a1794390 | 564 | mutex_lock(&cfg80211_mutex); |
55682965 | 565 | list_for_each_entry(dev, &cfg80211_drv_list, list) { |
bba95fef JB |
566 | if (wp_idx < wp_start) { |
567 | wp_idx++; | |
55682965 | 568 | continue; |
bba95fef | 569 | } |
55682965 JB |
570 | if_idx = 0; |
571 | ||
572 | mutex_lock(&dev->devlist_mtx); | |
573 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
bba95fef JB |
574 | if (if_idx < if_start) { |
575 | if_idx++; | |
55682965 | 576 | continue; |
bba95fef | 577 | } |
55682965 JB |
578 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
579 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
bba95fef JB |
580 | wdev->netdev) < 0) { |
581 | mutex_unlock(&dev->devlist_mtx); | |
582 | goto out; | |
583 | } | |
584 | if_idx++; | |
55682965 JB |
585 | } |
586 | mutex_unlock(&dev->devlist_mtx); | |
bba95fef JB |
587 | |
588 | wp_idx++; | |
55682965 | 589 | } |
bba95fef | 590 | out: |
a1794390 | 591 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
592 | |
593 | cb->args[0] = wp_idx; | |
594 | cb->args[1] = if_idx; | |
595 | ||
596 | return skb->len; | |
597 | } | |
598 | ||
599 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
600 | { | |
601 | struct sk_buff *msg; | |
602 | struct cfg80211_registered_device *dev; | |
603 | struct net_device *netdev; | |
604 | int err; | |
605 | ||
bba95fef | 606 | err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev); |
55682965 JB |
607 | if (err) |
608 | return err; | |
609 | ||
610 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
611 | if (!msg) | |
612 | goto out_err; | |
613 | ||
614 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) | |
615 | goto out_free; | |
616 | ||
617 | dev_put(netdev); | |
618 | cfg80211_put_dev(dev); | |
619 | ||
620 | return genlmsg_unicast(msg, info->snd_pid); | |
621 | ||
622 | out_free: | |
623 | nlmsg_free(msg); | |
624 | out_err: | |
625 | dev_put(netdev); | |
626 | cfg80211_put_dev(dev); | |
627 | return -ENOBUFS; | |
628 | } | |
629 | ||
66f7ac50 MW |
630 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
631 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
632 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
633 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
634 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
635 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
636 | }; | |
637 | ||
638 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
639 | { | |
640 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
641 | int flag; | |
642 | ||
643 | *mntrflags = 0; | |
644 | ||
645 | if (!nla) | |
646 | return -EINVAL; | |
647 | ||
648 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
649 | nla, mntr_flags_policy)) | |
650 | return -EINVAL; | |
651 | ||
652 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
653 | if (flags[flag]) | |
654 | *mntrflags |= (1<<flag); | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
55682965 JB |
659 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
660 | { | |
661 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 662 | struct vif_params params; |
55682965 JB |
663 | int err, ifindex; |
664 | enum nl80211_iftype type; | |
665 | struct net_device *dev; | |
92ffe055 | 666 | u32 _flags, *flags = NULL; |
ac7f9cfa | 667 | bool change = false; |
55682965 | 668 | |
2ec600d6 LCC |
669 | memset(¶ms, 0, sizeof(params)); |
670 | ||
3b85875a JB |
671 | rtnl_lock(); |
672 | ||
bba95fef | 673 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
55682965 | 674 | if (err) |
3b85875a JB |
675 | goto unlock_rtnl; |
676 | ||
55682965 | 677 | ifindex = dev->ifindex; |
723b038d | 678 | type = dev->ieee80211_ptr->iftype; |
55682965 JB |
679 | dev_put(dev); |
680 | ||
723b038d | 681 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa JB |
682 | enum nl80211_iftype ntype; |
683 | ||
684 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
685 | if (type != ntype) | |
686 | change = true; | |
687 | type = ntype; | |
688 | if (type > NL80211_IFTYPE_MAX) { | |
689 | err = -EINVAL; | |
723b038d | 690 | goto unlock; |
ac7f9cfa | 691 | } |
723b038d JB |
692 | } |
693 | ||
f59ac048 LR |
694 | if (!drv->ops->change_virtual_intf || |
695 | !(drv->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
696 | err = -EOPNOTSUPP; |
697 | goto unlock; | |
698 | } | |
699 | ||
92ffe055 JB |
700 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
701 | if (type != NL80211_IFTYPE_MESH_POINT) { | |
702 | err = -EINVAL; | |
703 | goto unlock; | |
704 | } | |
2ec600d6 LCC |
705 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
706 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 707 | change = true; |
2ec600d6 LCC |
708 | } |
709 | ||
92ffe055 JB |
710 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
711 | if (type != NL80211_IFTYPE_MONITOR) { | |
712 | err = -EINVAL; | |
713 | goto unlock; | |
714 | } | |
715 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
716 | &_flags); | |
ac7f9cfa JB |
717 | if (err) |
718 | goto unlock; | |
719 | ||
720 | flags = &_flags; | |
721 | change = true; | |
92ffe055 | 722 | } |
3b85875a | 723 | |
ac7f9cfa JB |
724 | if (change) |
725 | err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, | |
726 | type, flags, ¶ms); | |
727 | else | |
728 | err = 0; | |
60719ffd JB |
729 | |
730 | dev = __dev_get_by_index(&init_net, ifindex); | |
731 | WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type)); | |
732 | ||
55682965 JB |
733 | unlock: |
734 | cfg80211_put_dev(drv); | |
3b85875a JB |
735 | unlock_rtnl: |
736 | rtnl_unlock(); | |
55682965 JB |
737 | return err; |
738 | } | |
739 | ||
740 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
741 | { | |
742 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 743 | struct vif_params params; |
55682965 JB |
744 | int err; |
745 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 746 | u32 flags; |
55682965 | 747 | |
2ec600d6 LCC |
748 | memset(¶ms, 0, sizeof(params)); |
749 | ||
55682965 JB |
750 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
751 | return -EINVAL; | |
752 | ||
753 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
754 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
755 | if (type > NL80211_IFTYPE_MAX) | |
756 | return -EINVAL; | |
757 | } | |
758 | ||
3b85875a JB |
759 | rtnl_lock(); |
760 | ||
55682965 | 761 | drv = cfg80211_get_dev_from_info(info); |
3b85875a JB |
762 | if (IS_ERR(drv)) { |
763 | err = PTR_ERR(drv); | |
764 | goto unlock_rtnl; | |
765 | } | |
55682965 | 766 | |
f59ac048 LR |
767 | if (!drv->ops->add_virtual_intf || |
768 | !(drv->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
769 | err = -EOPNOTSUPP; |
770 | goto unlock; | |
771 | } | |
772 | ||
2ec600d6 LCC |
773 | if (type == NL80211_IFTYPE_MESH_POINT && |
774 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
775 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
776 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
777 | } | |
778 | ||
66f7ac50 MW |
779 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
780 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
781 | &flags); | |
55682965 | 782 | err = drv->ops->add_virtual_intf(&drv->wiphy, |
66f7ac50 | 783 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 784 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 785 | |
55682965 JB |
786 | unlock: |
787 | cfg80211_put_dev(drv); | |
3b85875a JB |
788 | unlock_rtnl: |
789 | rtnl_unlock(); | |
55682965 JB |
790 | return err; |
791 | } | |
792 | ||
793 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
794 | { | |
795 | struct cfg80211_registered_device *drv; | |
796 | int ifindex, err; | |
797 | struct net_device *dev; | |
798 | ||
3b85875a JB |
799 | rtnl_lock(); |
800 | ||
bba95fef | 801 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
55682965 | 802 | if (err) |
3b85875a | 803 | goto unlock_rtnl; |
55682965 JB |
804 | ifindex = dev->ifindex; |
805 | dev_put(dev); | |
806 | ||
807 | if (!drv->ops->del_virtual_intf) { | |
808 | err = -EOPNOTSUPP; | |
809 | goto out; | |
810 | } | |
811 | ||
55682965 | 812 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); |
55682965 JB |
813 | |
814 | out: | |
815 | cfg80211_put_dev(drv); | |
3b85875a JB |
816 | unlock_rtnl: |
817 | rtnl_unlock(); | |
55682965 JB |
818 | return err; |
819 | } | |
820 | ||
41ade00f JB |
821 | struct get_key_cookie { |
822 | struct sk_buff *msg; | |
823 | int error; | |
824 | }; | |
825 | ||
826 | static void get_key_callback(void *c, struct key_params *params) | |
827 | { | |
828 | struct get_key_cookie *cookie = c; | |
829 | ||
830 | if (params->key) | |
831 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
832 | params->key_len, params->key); | |
833 | ||
834 | if (params->seq) | |
835 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
836 | params->seq_len, params->seq); | |
837 | ||
838 | if (params->cipher) | |
839 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
840 | params->cipher); | |
841 | ||
842 | return; | |
843 | nla_put_failure: | |
844 | cookie->error = 1; | |
845 | } | |
846 | ||
847 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
848 | { | |
849 | struct cfg80211_registered_device *drv; | |
850 | int err; | |
851 | struct net_device *dev; | |
852 | u8 key_idx = 0; | |
853 | u8 *mac_addr = NULL; | |
854 | struct get_key_cookie cookie = { | |
855 | .error = 0, | |
856 | }; | |
857 | void *hdr; | |
858 | struct sk_buff *msg; | |
859 | ||
860 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
861 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
862 | ||
3cfcf6ac | 863 | if (key_idx > 5) |
41ade00f JB |
864 | return -EINVAL; |
865 | ||
866 | if (info->attrs[NL80211_ATTR_MAC]) | |
867 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
868 | ||
3b85875a JB |
869 | rtnl_lock(); |
870 | ||
bba95fef | 871 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 872 | if (err) |
3b85875a | 873 | goto unlock_rtnl; |
41ade00f JB |
874 | |
875 | if (!drv->ops->get_key) { | |
876 | err = -EOPNOTSUPP; | |
877 | goto out; | |
878 | } | |
879 | ||
880 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
881 | if (!msg) { | |
882 | err = -ENOMEM; | |
883 | goto out; | |
884 | } | |
885 | ||
886 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
887 | NL80211_CMD_NEW_KEY); | |
888 | ||
889 | if (IS_ERR(hdr)) { | |
890 | err = PTR_ERR(hdr); | |
891 | goto out; | |
892 | } | |
893 | ||
894 | cookie.msg = msg; | |
895 | ||
896 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
897 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
898 | if (mac_addr) | |
899 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
900 | ||
41ade00f JB |
901 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, |
902 | &cookie, get_key_callback); | |
41ade00f JB |
903 | |
904 | if (err) | |
905 | goto out; | |
906 | ||
907 | if (cookie.error) | |
908 | goto nla_put_failure; | |
909 | ||
910 | genlmsg_end(msg, hdr); | |
911 | err = genlmsg_unicast(msg, info->snd_pid); | |
912 | goto out; | |
913 | ||
914 | nla_put_failure: | |
915 | err = -ENOBUFS; | |
916 | nlmsg_free(msg); | |
917 | out: | |
918 | cfg80211_put_dev(drv); | |
919 | dev_put(dev); | |
3b85875a JB |
920 | unlock_rtnl: |
921 | rtnl_unlock(); | |
922 | ||
41ade00f JB |
923 | return err; |
924 | } | |
925 | ||
926 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
927 | { | |
928 | struct cfg80211_registered_device *drv; | |
929 | int err; | |
930 | struct net_device *dev; | |
931 | u8 key_idx; | |
3cfcf6ac JM |
932 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
933 | u8 key_index); | |
41ade00f JB |
934 | |
935 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) | |
936 | return -EINVAL; | |
937 | ||
938 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
939 | ||
3cfcf6ac JM |
940 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) { |
941 | if (key_idx < 4 || key_idx > 5) | |
942 | return -EINVAL; | |
943 | } else if (key_idx > 3) | |
41ade00f JB |
944 | return -EINVAL; |
945 | ||
946 | /* currently only support setting default key */ | |
3cfcf6ac JM |
947 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] && |
948 | !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) | |
41ade00f JB |
949 | return -EINVAL; |
950 | ||
3b85875a JB |
951 | rtnl_lock(); |
952 | ||
bba95fef | 953 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 954 | if (err) |
3b85875a | 955 | goto unlock_rtnl; |
41ade00f | 956 | |
3cfcf6ac JM |
957 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT]) |
958 | func = drv->ops->set_default_key; | |
959 | else | |
960 | func = drv->ops->set_default_mgmt_key; | |
961 | ||
962 | if (!func) { | |
41ade00f JB |
963 | err = -EOPNOTSUPP; |
964 | goto out; | |
965 | } | |
966 | ||
3cfcf6ac | 967 | err = func(&drv->wiphy, dev, key_idx); |
41ade00f JB |
968 | |
969 | out: | |
970 | cfg80211_put_dev(drv); | |
971 | dev_put(dev); | |
3b85875a JB |
972 | |
973 | unlock_rtnl: | |
974 | rtnl_unlock(); | |
975 | ||
41ade00f JB |
976 | return err; |
977 | } | |
978 | ||
979 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
980 | { | |
981 | struct cfg80211_registered_device *drv; | |
982 | int err; | |
983 | struct net_device *dev; | |
984 | struct key_params params; | |
985 | u8 key_idx = 0; | |
986 | u8 *mac_addr = NULL; | |
987 | ||
988 | memset(¶ms, 0, sizeof(params)); | |
989 | ||
990 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
991 | return -EINVAL; | |
992 | ||
993 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
994 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
995 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
996 | } | |
997 | ||
998 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
999 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1000 | ||
1001 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
1002 | ||
1003 | if (info->attrs[NL80211_ATTR_MAC]) | |
1004 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1005 | ||
3cfcf6ac | 1006 | if (key_idx > 5) |
41ade00f JB |
1007 | return -EINVAL; |
1008 | ||
1009 | /* | |
1010 | * Disallow pairwise keys with non-zero index unless it's WEP | |
1011 | * (because current deployments use pairwise WEP keys with | |
1012 | * non-zero indizes but 802.11i clearly specifies to use zero) | |
1013 | */ | |
1014 | if (mac_addr && key_idx && | |
1015 | params.cipher != WLAN_CIPHER_SUITE_WEP40 && | |
1016 | params.cipher != WLAN_CIPHER_SUITE_WEP104) | |
1017 | return -EINVAL; | |
1018 | ||
1019 | /* TODO: add definitions for the lengths to linux/ieee80211.h */ | |
1020 | switch (params.cipher) { | |
1021 | case WLAN_CIPHER_SUITE_WEP40: | |
1022 | if (params.key_len != 5) | |
1023 | return -EINVAL; | |
1024 | break; | |
1025 | case WLAN_CIPHER_SUITE_TKIP: | |
1026 | if (params.key_len != 32) | |
1027 | return -EINVAL; | |
1028 | break; | |
1029 | case WLAN_CIPHER_SUITE_CCMP: | |
1030 | if (params.key_len != 16) | |
1031 | return -EINVAL; | |
1032 | break; | |
1033 | case WLAN_CIPHER_SUITE_WEP104: | |
1034 | if (params.key_len != 13) | |
1035 | return -EINVAL; | |
1036 | break; | |
3cfcf6ac JM |
1037 | case WLAN_CIPHER_SUITE_AES_CMAC: |
1038 | if (params.key_len != 16) | |
1039 | return -EINVAL; | |
1040 | break; | |
41ade00f JB |
1041 | default: |
1042 | return -EINVAL; | |
1043 | } | |
1044 | ||
3b85875a JB |
1045 | rtnl_lock(); |
1046 | ||
bba95fef | 1047 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 1048 | if (err) |
3b85875a | 1049 | goto unlock_rtnl; |
41ade00f JB |
1050 | |
1051 | if (!drv->ops->add_key) { | |
1052 | err = -EOPNOTSUPP; | |
1053 | goto out; | |
1054 | } | |
1055 | ||
41ade00f | 1056 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); |
41ade00f JB |
1057 | |
1058 | out: | |
1059 | cfg80211_put_dev(drv); | |
1060 | dev_put(dev); | |
3b85875a JB |
1061 | unlock_rtnl: |
1062 | rtnl_unlock(); | |
1063 | ||
41ade00f JB |
1064 | return err; |
1065 | } | |
1066 | ||
1067 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1068 | { | |
1069 | struct cfg80211_registered_device *drv; | |
1070 | int err; | |
1071 | struct net_device *dev; | |
1072 | u8 key_idx = 0; | |
1073 | u8 *mac_addr = NULL; | |
1074 | ||
1075 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1076 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1077 | ||
3cfcf6ac | 1078 | if (key_idx > 5) |
41ade00f JB |
1079 | return -EINVAL; |
1080 | ||
1081 | if (info->attrs[NL80211_ATTR_MAC]) | |
1082 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1083 | ||
3b85875a JB |
1084 | rtnl_lock(); |
1085 | ||
bba95fef | 1086 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 1087 | if (err) |
3b85875a | 1088 | goto unlock_rtnl; |
41ade00f JB |
1089 | |
1090 | if (!drv->ops->del_key) { | |
1091 | err = -EOPNOTSUPP; | |
1092 | goto out; | |
1093 | } | |
1094 | ||
41ade00f | 1095 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); |
41ade00f JB |
1096 | |
1097 | out: | |
1098 | cfg80211_put_dev(drv); | |
1099 | dev_put(dev); | |
3b85875a JB |
1100 | |
1101 | unlock_rtnl: | |
1102 | rtnl_unlock(); | |
1103 | ||
41ade00f JB |
1104 | return err; |
1105 | } | |
1106 | ||
ed1b6cc7 JB |
1107 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1108 | { | |
1109 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1110 | struct beacon_parameters *info); | |
1111 | struct cfg80211_registered_device *drv; | |
1112 | int err; | |
1113 | struct net_device *dev; | |
1114 | struct beacon_parameters params; | |
1115 | int haveinfo = 0; | |
1116 | ||
f4a11bb0 JB |
1117 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1118 | return -EINVAL; | |
1119 | ||
3b85875a JB |
1120 | rtnl_lock(); |
1121 | ||
bba95fef | 1122 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
ed1b6cc7 | 1123 | if (err) |
3b85875a | 1124 | goto unlock_rtnl; |
ed1b6cc7 | 1125 | |
eec60b03 JM |
1126 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1127 | err = -EOPNOTSUPP; | |
1128 | goto out; | |
1129 | } | |
1130 | ||
ed1b6cc7 JB |
1131 | switch (info->genlhdr->cmd) { |
1132 | case NL80211_CMD_NEW_BEACON: | |
1133 | /* these are required for NEW_BEACON */ | |
1134 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1135 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
1136 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1137 | err = -EINVAL; | |
1138 | goto out; | |
1139 | } | |
1140 | ||
1141 | call = drv->ops->add_beacon; | |
1142 | break; | |
1143 | case NL80211_CMD_SET_BEACON: | |
1144 | call = drv->ops->set_beacon; | |
1145 | break; | |
1146 | default: | |
1147 | WARN_ON(1); | |
1148 | err = -EOPNOTSUPP; | |
1149 | goto out; | |
1150 | } | |
1151 | ||
1152 | if (!call) { | |
1153 | err = -EOPNOTSUPP; | |
1154 | goto out; | |
1155 | } | |
1156 | ||
1157 | memset(¶ms, 0, sizeof(params)); | |
1158 | ||
1159 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1160 | params.interval = | |
1161 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1162 | haveinfo = 1; | |
1163 | } | |
1164 | ||
1165 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1166 | params.dtim_period = | |
1167 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1168 | haveinfo = 1; | |
1169 | } | |
1170 | ||
1171 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1172 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1173 | params.head_len = | |
1174 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1175 | haveinfo = 1; | |
1176 | } | |
1177 | ||
1178 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1179 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1180 | params.tail_len = | |
1181 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1182 | haveinfo = 1; | |
1183 | } | |
1184 | ||
1185 | if (!haveinfo) { | |
1186 | err = -EINVAL; | |
1187 | goto out; | |
1188 | } | |
1189 | ||
ed1b6cc7 | 1190 | err = call(&drv->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1191 | |
1192 | out: | |
1193 | cfg80211_put_dev(drv); | |
1194 | dev_put(dev); | |
3b85875a JB |
1195 | unlock_rtnl: |
1196 | rtnl_unlock(); | |
1197 | ||
ed1b6cc7 JB |
1198 | return err; |
1199 | } | |
1200 | ||
1201 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1202 | { | |
1203 | struct cfg80211_registered_device *drv; | |
1204 | int err; | |
1205 | struct net_device *dev; | |
1206 | ||
3b85875a JB |
1207 | rtnl_lock(); |
1208 | ||
bba95fef | 1209 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
ed1b6cc7 | 1210 | if (err) |
3b85875a | 1211 | goto unlock_rtnl; |
ed1b6cc7 JB |
1212 | |
1213 | if (!drv->ops->del_beacon) { | |
1214 | err = -EOPNOTSUPP; | |
1215 | goto out; | |
1216 | } | |
1217 | ||
eec60b03 JM |
1218 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1219 | err = -EOPNOTSUPP; | |
1220 | goto out; | |
1221 | } | |
ed1b6cc7 | 1222 | err = drv->ops->del_beacon(&drv->wiphy, dev); |
ed1b6cc7 JB |
1223 | |
1224 | out: | |
1225 | cfg80211_put_dev(drv); | |
1226 | dev_put(dev); | |
3b85875a JB |
1227 | unlock_rtnl: |
1228 | rtnl_unlock(); | |
1229 | ||
ed1b6cc7 JB |
1230 | return err; |
1231 | } | |
1232 | ||
5727ef1b JB |
1233 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1234 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1235 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1236 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
1237 | }; | |
1238 | ||
1239 | static int parse_station_flags(struct nlattr *nla, u32 *staflags) | |
1240 | { | |
1241 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
1242 | int flag; | |
1243 | ||
1244 | *staflags = 0; | |
1245 | ||
1246 | if (!nla) | |
1247 | return 0; | |
1248 | ||
1249 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1250 | nla, sta_flags_policy)) | |
1251 | return -EINVAL; | |
1252 | ||
1253 | *staflags = STATION_FLAG_CHANGED; | |
1254 | ||
1255 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1256 | if (flags[flag]) | |
1257 | *staflags |= (1<<flag); | |
1258 | ||
1259 | return 0; | |
1260 | } | |
1261 | ||
420e7fab HR |
1262 | static u16 nl80211_calculate_bitrate(struct rate_info *rate) |
1263 | { | |
1264 | int modulation, streams, bitrate; | |
1265 | ||
1266 | if (!(rate->flags & RATE_INFO_FLAGS_MCS)) | |
1267 | return rate->legacy; | |
1268 | ||
1269 | /* the formula below does only work for MCS values smaller than 32 */ | |
1270 | if (rate->mcs >= 32) | |
1271 | return 0; | |
1272 | ||
1273 | modulation = rate->mcs & 7; | |
1274 | streams = (rate->mcs >> 3) + 1; | |
1275 | ||
1276 | bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ? | |
1277 | 13500000 : 6500000; | |
1278 | ||
1279 | if (modulation < 4) | |
1280 | bitrate *= (modulation + 1); | |
1281 | else if (modulation == 4) | |
1282 | bitrate *= (modulation + 2); | |
1283 | else | |
1284 | bitrate *= (modulation + 3); | |
1285 | ||
1286 | bitrate *= streams; | |
1287 | ||
1288 | if (rate->flags & RATE_INFO_FLAGS_SHORT_GI) | |
1289 | bitrate = (bitrate / 9) * 10; | |
1290 | ||
1291 | /* do NOT round down here */ | |
1292 | return (bitrate + 50000) / 100000; | |
1293 | } | |
1294 | ||
fd5b74dc JB |
1295 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1296 | int flags, struct net_device *dev, | |
2ec600d6 | 1297 | u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1298 | { |
1299 | void *hdr; | |
420e7fab HR |
1300 | struct nlattr *sinfoattr, *txrate; |
1301 | u16 bitrate; | |
fd5b74dc JB |
1302 | |
1303 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1304 | if (!hdr) | |
1305 | return -1; | |
1306 | ||
1307 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1308 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1309 | ||
2ec600d6 LCC |
1310 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1311 | if (!sinfoattr) | |
fd5b74dc | 1312 | goto nla_put_failure; |
2ec600d6 LCC |
1313 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1314 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1315 | sinfo->inactive_time); | |
1316 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1317 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1318 | sinfo->rx_bytes); | |
1319 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1320 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1321 | sinfo->tx_bytes); | |
1322 | if (sinfo->filled & STATION_INFO_LLID) | |
1323 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1324 | sinfo->llid); | |
1325 | if (sinfo->filled & STATION_INFO_PLID) | |
1326 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1327 | sinfo->plid); | |
1328 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1329 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1330 | sinfo->plink_state); | |
420e7fab HR |
1331 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1332 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1333 | sinfo->signal); | |
1334 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1335 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1336 | if (!txrate) | |
1337 | goto nla_put_failure; | |
1338 | ||
1339 | /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
1340 | bitrate = nl80211_calculate_bitrate(&sinfo->txrate); | |
1341 | if (bitrate > 0) | |
1342 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1343 | |
420e7fab HR |
1344 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1345 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1346 | sinfo->txrate.mcs); | |
1347 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1348 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1349 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1350 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1351 | ||
1352 | nla_nest_end(msg, txrate); | |
1353 | } | |
98c8a60a JM |
1354 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1355 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1356 | sinfo->rx_packets); | |
1357 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1358 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1359 | sinfo->tx_packets); | |
2ec600d6 | 1360 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1361 | |
1362 | return genlmsg_end(msg, hdr); | |
1363 | ||
1364 | nla_put_failure: | |
bc3ed28c TG |
1365 | genlmsg_cancel(msg, hdr); |
1366 | return -EMSGSIZE; | |
fd5b74dc JB |
1367 | } |
1368 | ||
2ec600d6 | 1369 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1370 | struct netlink_callback *cb) |
2ec600d6 | 1371 | { |
2ec600d6 LCC |
1372 | struct station_info sinfo; |
1373 | struct cfg80211_registered_device *dev; | |
bba95fef | 1374 | struct net_device *netdev; |
2ec600d6 | 1375 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1376 | int ifidx = cb->args[0]; |
1377 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1378 | int err; |
2ec600d6 | 1379 | |
bba95fef JB |
1380 | if (!ifidx) { |
1381 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1382 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1383 | nl80211_policy); | |
1384 | if (err) | |
1385 | return err; | |
2ec600d6 | 1386 | |
bba95fef JB |
1387 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) |
1388 | return -EINVAL; | |
2ec600d6 | 1389 | |
bba95fef JB |
1390 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); |
1391 | if (!ifidx) | |
1392 | return -EINVAL; | |
2ec600d6 | 1393 | } |
2ec600d6 | 1394 | |
3b85875a JB |
1395 | rtnl_lock(); |
1396 | ||
1397 | netdev = __dev_get_by_index(&init_net, ifidx); | |
1398 | if (!netdev) { | |
1399 | err = -ENODEV; | |
1400 | goto out_rtnl; | |
1401 | } | |
2ec600d6 | 1402 | |
bba95fef JB |
1403 | dev = cfg80211_get_dev_from_ifindex(ifidx); |
1404 | if (IS_ERR(dev)) { | |
1405 | err = PTR_ERR(dev); | |
3b85875a | 1406 | goto out_rtnl; |
bba95fef JB |
1407 | } |
1408 | ||
1409 | if (!dev->ops->dump_station) { | |
eec60b03 | 1410 | err = -EOPNOTSUPP; |
bba95fef JB |
1411 | goto out_err; |
1412 | } | |
1413 | ||
bba95fef JB |
1414 | while (1) { |
1415 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1416 | mac_addr, &sinfo); | |
1417 | if (err == -ENOENT) | |
1418 | break; | |
1419 | if (err) | |
3b85875a | 1420 | goto out_err; |
bba95fef JB |
1421 | |
1422 | if (nl80211_send_station(skb, | |
1423 | NETLINK_CB(cb->skb).pid, | |
1424 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1425 | netdev, mac_addr, | |
1426 | &sinfo) < 0) | |
1427 | goto out; | |
1428 | ||
1429 | sta_idx++; | |
1430 | } | |
1431 | ||
1432 | ||
1433 | out: | |
1434 | cb->args[1] = sta_idx; | |
1435 | err = skb->len; | |
bba95fef JB |
1436 | out_err: |
1437 | cfg80211_put_dev(dev); | |
3b85875a JB |
1438 | out_rtnl: |
1439 | rtnl_unlock(); | |
bba95fef JB |
1440 | |
1441 | return err; | |
2ec600d6 | 1442 | } |
fd5b74dc | 1443 | |
5727ef1b JB |
1444 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1445 | { | |
fd5b74dc JB |
1446 | struct cfg80211_registered_device *drv; |
1447 | int err; | |
1448 | struct net_device *dev; | |
2ec600d6 | 1449 | struct station_info sinfo; |
fd5b74dc JB |
1450 | struct sk_buff *msg; |
1451 | u8 *mac_addr = NULL; | |
1452 | ||
2ec600d6 | 1453 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1454 | |
1455 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1456 | return -EINVAL; | |
1457 | ||
1458 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1459 | ||
3b85875a JB |
1460 | rtnl_lock(); |
1461 | ||
bba95fef | 1462 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
fd5b74dc | 1463 | if (err) |
3b85875a | 1464 | goto out_rtnl; |
fd5b74dc JB |
1465 | |
1466 | if (!drv->ops->get_station) { | |
1467 | err = -EOPNOTSUPP; | |
1468 | goto out; | |
1469 | } | |
1470 | ||
2ec600d6 | 1471 | err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); |
2ec600d6 LCC |
1472 | if (err) |
1473 | goto out; | |
1474 | ||
fd5b74dc JB |
1475 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
1476 | if (!msg) | |
1477 | goto out; | |
1478 | ||
1479 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1480 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1481 | goto out_free; |
1482 | ||
1483 | err = genlmsg_unicast(msg, info->snd_pid); | |
1484 | goto out; | |
1485 | ||
1486 | out_free: | |
1487 | nlmsg_free(msg); | |
fd5b74dc JB |
1488 | out: |
1489 | cfg80211_put_dev(drv); | |
1490 | dev_put(dev); | |
3b85875a JB |
1491 | out_rtnl: |
1492 | rtnl_unlock(); | |
1493 | ||
fd5b74dc | 1494 | return err; |
5727ef1b JB |
1495 | } |
1496 | ||
1497 | /* | |
1498 | * Get vlan interface making sure it is on the right wiphy. | |
1499 | */ | |
1500 | static int get_vlan(struct nlattr *vlanattr, | |
1501 | struct cfg80211_registered_device *rdev, | |
1502 | struct net_device **vlan) | |
1503 | { | |
1504 | *vlan = NULL; | |
1505 | ||
1506 | if (vlanattr) { | |
1507 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); | |
1508 | if (!*vlan) | |
1509 | return -ENODEV; | |
1510 | if (!(*vlan)->ieee80211_ptr) | |
1511 | return -EINVAL; | |
1512 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1513 | return -EINVAL; | |
1514 | } | |
1515 | return 0; | |
1516 | } | |
1517 | ||
1518 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1519 | { | |
1520 | struct cfg80211_registered_device *drv; | |
1521 | int err; | |
1522 | struct net_device *dev; | |
1523 | struct station_parameters params; | |
1524 | u8 *mac_addr = NULL; | |
1525 | ||
1526 | memset(¶ms, 0, sizeof(params)); | |
1527 | ||
1528 | params.listen_interval = -1; | |
1529 | ||
1530 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1531 | return -EINVAL; | |
1532 | ||
1533 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1534 | return -EINVAL; | |
1535 | ||
1536 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1537 | ||
1538 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1539 | params.supported_rates = | |
1540 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1541 | params.supported_rates_len = | |
1542 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1543 | } | |
1544 | ||
1545 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1546 | params.listen_interval = | |
1547 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1548 | ||
36aedc90 JM |
1549 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1550 | params.ht_capa = | |
1551 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
1552 | ||
5727ef1b JB |
1553 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], |
1554 | ¶ms.station_flags)) | |
1555 | return -EINVAL; | |
1556 | ||
2ec600d6 LCC |
1557 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1558 | params.plink_action = | |
1559 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1560 | ||
3b85875a JB |
1561 | rtnl_lock(); |
1562 | ||
bba95fef | 1563 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1564 | if (err) |
3b85875a | 1565 | goto out_rtnl; |
5727ef1b JB |
1566 | |
1567 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1568 | if (err) | |
1569 | goto out; | |
1570 | ||
1571 | if (!drv->ops->change_station) { | |
1572 | err = -EOPNOTSUPP; | |
1573 | goto out; | |
1574 | } | |
1575 | ||
5727ef1b | 1576 | err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1577 | |
1578 | out: | |
1579 | if (params.vlan) | |
1580 | dev_put(params.vlan); | |
1581 | cfg80211_put_dev(drv); | |
1582 | dev_put(dev); | |
3b85875a JB |
1583 | out_rtnl: |
1584 | rtnl_unlock(); | |
1585 | ||
5727ef1b JB |
1586 | return err; |
1587 | } | |
1588 | ||
1589 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1590 | { | |
1591 | struct cfg80211_registered_device *drv; | |
1592 | int err; | |
1593 | struct net_device *dev; | |
1594 | struct station_parameters params; | |
1595 | u8 *mac_addr = NULL; | |
1596 | ||
1597 | memset(¶ms, 0, sizeof(params)); | |
1598 | ||
1599 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1600 | return -EINVAL; | |
1601 | ||
1602 | if (!info->attrs[NL80211_ATTR_STA_AID]) | |
1603 | return -EINVAL; | |
1604 | ||
1605 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1606 | return -EINVAL; | |
1607 | ||
1608 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1609 | return -EINVAL; | |
1610 | ||
1611 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1612 | params.supported_rates = | |
1613 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1614 | params.supported_rates_len = | |
1615 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1616 | params.listen_interval = | |
1617 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
16f2e85d | 1618 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
36aedc90 JM |
1619 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1620 | params.ht_capa = | |
1621 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b JB |
1622 | |
1623 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1624 | ¶ms.station_flags)) | |
1625 | return -EINVAL; | |
1626 | ||
3b85875a JB |
1627 | rtnl_lock(); |
1628 | ||
bba95fef | 1629 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1630 | if (err) |
3b85875a | 1631 | goto out_rtnl; |
5727ef1b JB |
1632 | |
1633 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1634 | if (err) | |
1635 | goto out; | |
1636 | ||
1637 | if (!drv->ops->add_station) { | |
1638 | err = -EOPNOTSUPP; | |
1639 | goto out; | |
1640 | } | |
1641 | ||
35a8efe1 JM |
1642 | if (!netif_running(dev)) { |
1643 | err = -ENETDOWN; | |
1644 | goto out; | |
1645 | } | |
1646 | ||
5727ef1b | 1647 | err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1648 | |
1649 | out: | |
1650 | if (params.vlan) | |
1651 | dev_put(params.vlan); | |
1652 | cfg80211_put_dev(drv); | |
1653 | dev_put(dev); | |
3b85875a JB |
1654 | out_rtnl: |
1655 | rtnl_unlock(); | |
1656 | ||
5727ef1b JB |
1657 | return err; |
1658 | } | |
1659 | ||
1660 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
1661 | { | |
1662 | struct cfg80211_registered_device *drv; | |
1663 | int err; | |
1664 | struct net_device *dev; | |
1665 | u8 *mac_addr = NULL; | |
1666 | ||
1667 | if (info->attrs[NL80211_ATTR_MAC]) | |
1668 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1669 | ||
3b85875a JB |
1670 | rtnl_lock(); |
1671 | ||
bba95fef | 1672 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1673 | if (err) |
3b85875a | 1674 | goto out_rtnl; |
5727ef1b JB |
1675 | |
1676 | if (!drv->ops->del_station) { | |
1677 | err = -EOPNOTSUPP; | |
1678 | goto out; | |
1679 | } | |
1680 | ||
5727ef1b | 1681 | err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); |
5727ef1b JB |
1682 | |
1683 | out: | |
1684 | cfg80211_put_dev(drv); | |
1685 | dev_put(dev); | |
3b85875a JB |
1686 | out_rtnl: |
1687 | rtnl_unlock(); | |
1688 | ||
5727ef1b JB |
1689 | return err; |
1690 | } | |
1691 | ||
2ec600d6 LCC |
1692 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
1693 | int flags, struct net_device *dev, | |
1694 | u8 *dst, u8 *next_hop, | |
1695 | struct mpath_info *pinfo) | |
1696 | { | |
1697 | void *hdr; | |
1698 | struct nlattr *pinfoattr; | |
1699 | ||
1700 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1701 | if (!hdr) | |
1702 | return -1; | |
1703 | ||
1704 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1705 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
1706 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
1707 | ||
1708 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
1709 | if (!pinfoattr) | |
1710 | goto nla_put_failure; | |
1711 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
1712 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
1713 | pinfo->frame_qlen); | |
1714 | if (pinfo->filled & MPATH_INFO_DSN) | |
1715 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, | |
1716 | pinfo->dsn); | |
1717 | if (pinfo->filled & MPATH_INFO_METRIC) | |
1718 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
1719 | pinfo->metric); | |
1720 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
1721 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
1722 | pinfo->exptime); | |
1723 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
1724 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
1725 | pinfo->flags); | |
1726 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
1727 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
1728 | pinfo->discovery_timeout); | |
1729 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
1730 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
1731 | pinfo->discovery_retries); | |
1732 | ||
1733 | nla_nest_end(msg, pinfoattr); | |
1734 | ||
1735 | return genlmsg_end(msg, hdr); | |
1736 | ||
1737 | nla_put_failure: | |
bc3ed28c TG |
1738 | genlmsg_cancel(msg, hdr); |
1739 | return -EMSGSIZE; | |
2ec600d6 LCC |
1740 | } |
1741 | ||
1742 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 1743 | struct netlink_callback *cb) |
2ec600d6 | 1744 | { |
2ec600d6 LCC |
1745 | struct mpath_info pinfo; |
1746 | struct cfg80211_registered_device *dev; | |
bba95fef | 1747 | struct net_device *netdev; |
2ec600d6 LCC |
1748 | u8 dst[ETH_ALEN]; |
1749 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
1750 | int ifidx = cb->args[0]; |
1751 | int path_idx = cb->args[1]; | |
2ec600d6 | 1752 | int err; |
2ec600d6 | 1753 | |
bba95fef JB |
1754 | if (!ifidx) { |
1755 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1756 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1757 | nl80211_policy); | |
1758 | if (err) | |
1759 | return err; | |
1760 | ||
1761 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
1762 | return -EINVAL; | |
1763 | ||
1764 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
1765 | if (!ifidx) | |
1766 | return -EINVAL; | |
1767 | } | |
1768 | ||
3b85875a JB |
1769 | rtnl_lock(); |
1770 | ||
1771 | netdev = __dev_get_by_index(&init_net, ifidx); | |
1772 | if (!netdev) { | |
1773 | err = -ENODEV; | |
1774 | goto out_rtnl; | |
1775 | } | |
bba95fef JB |
1776 | |
1777 | dev = cfg80211_get_dev_from_ifindex(ifidx); | |
1778 | if (IS_ERR(dev)) { | |
1779 | err = PTR_ERR(dev); | |
3b85875a | 1780 | goto out_rtnl; |
bba95fef JB |
1781 | } |
1782 | ||
1783 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 1784 | err = -EOPNOTSUPP; |
bba95fef JB |
1785 | goto out_err; |
1786 | } | |
1787 | ||
eec60b03 JM |
1788 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1789 | err = -EOPNOTSUPP; | |
1790 | goto out; | |
1791 | } | |
1792 | ||
bba95fef JB |
1793 | while (1) { |
1794 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
1795 | dst, next_hop, &pinfo); | |
1796 | if (err == -ENOENT) | |
2ec600d6 | 1797 | break; |
bba95fef | 1798 | if (err) |
3b85875a | 1799 | goto out_err; |
2ec600d6 | 1800 | |
bba95fef JB |
1801 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
1802 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1803 | netdev, dst, next_hop, | |
1804 | &pinfo) < 0) | |
1805 | goto out; | |
2ec600d6 | 1806 | |
bba95fef | 1807 | path_idx++; |
2ec600d6 | 1808 | } |
2ec600d6 | 1809 | |
2ec600d6 | 1810 | |
bba95fef JB |
1811 | out: |
1812 | cb->args[1] = path_idx; | |
1813 | err = skb->len; | |
bba95fef JB |
1814 | out_err: |
1815 | cfg80211_put_dev(dev); | |
3b85875a JB |
1816 | out_rtnl: |
1817 | rtnl_unlock(); | |
bba95fef JB |
1818 | |
1819 | return err; | |
2ec600d6 LCC |
1820 | } |
1821 | ||
1822 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
1823 | { | |
1824 | struct cfg80211_registered_device *drv; | |
1825 | int err; | |
1826 | struct net_device *dev; | |
1827 | struct mpath_info pinfo; | |
1828 | struct sk_buff *msg; | |
1829 | u8 *dst = NULL; | |
1830 | u8 next_hop[ETH_ALEN]; | |
1831 | ||
1832 | memset(&pinfo, 0, sizeof(pinfo)); | |
1833 | ||
1834 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1835 | return -EINVAL; | |
1836 | ||
1837 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1838 | ||
3b85875a JB |
1839 | rtnl_lock(); |
1840 | ||
bba95fef | 1841 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1842 | if (err) |
3b85875a | 1843 | goto out_rtnl; |
2ec600d6 LCC |
1844 | |
1845 | if (!drv->ops->get_mpath) { | |
1846 | err = -EOPNOTSUPP; | |
1847 | goto out; | |
1848 | } | |
1849 | ||
eec60b03 JM |
1850 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1851 | err = -EOPNOTSUPP; | |
1852 | goto out; | |
1853 | } | |
1854 | ||
2ec600d6 | 1855 | err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 LCC |
1856 | if (err) |
1857 | goto out; | |
1858 | ||
1859 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1860 | if (!msg) | |
1861 | goto out; | |
1862 | ||
1863 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
1864 | dev, dst, next_hop, &pinfo) < 0) | |
1865 | goto out_free; | |
1866 | ||
1867 | err = genlmsg_unicast(msg, info->snd_pid); | |
1868 | goto out; | |
1869 | ||
1870 | out_free: | |
1871 | nlmsg_free(msg); | |
2ec600d6 LCC |
1872 | out: |
1873 | cfg80211_put_dev(drv); | |
1874 | dev_put(dev); | |
3b85875a JB |
1875 | out_rtnl: |
1876 | rtnl_unlock(); | |
1877 | ||
2ec600d6 LCC |
1878 | return err; |
1879 | } | |
1880 | ||
1881 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
1882 | { | |
1883 | struct cfg80211_registered_device *drv; | |
1884 | int err; | |
1885 | struct net_device *dev; | |
1886 | u8 *dst = NULL; | |
1887 | u8 *next_hop = NULL; | |
1888 | ||
1889 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1890 | return -EINVAL; | |
1891 | ||
1892 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1893 | return -EINVAL; | |
1894 | ||
1895 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1896 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1897 | ||
3b85875a JB |
1898 | rtnl_lock(); |
1899 | ||
bba95fef | 1900 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1901 | if (err) |
3b85875a | 1902 | goto out_rtnl; |
2ec600d6 LCC |
1903 | |
1904 | if (!drv->ops->change_mpath) { | |
1905 | err = -EOPNOTSUPP; | |
1906 | goto out; | |
1907 | } | |
1908 | ||
eec60b03 JM |
1909 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1910 | err = -EOPNOTSUPP; | |
1911 | goto out; | |
1912 | } | |
1913 | ||
35a8efe1 JM |
1914 | if (!netif_running(dev)) { |
1915 | err = -ENETDOWN; | |
1916 | goto out; | |
1917 | } | |
1918 | ||
2ec600d6 | 1919 | err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
1920 | |
1921 | out: | |
1922 | cfg80211_put_dev(drv); | |
1923 | dev_put(dev); | |
3b85875a JB |
1924 | out_rtnl: |
1925 | rtnl_unlock(); | |
1926 | ||
2ec600d6 LCC |
1927 | return err; |
1928 | } | |
1929 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
1930 | { | |
1931 | struct cfg80211_registered_device *drv; | |
1932 | int err; | |
1933 | struct net_device *dev; | |
1934 | u8 *dst = NULL; | |
1935 | u8 *next_hop = NULL; | |
1936 | ||
1937 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1938 | return -EINVAL; | |
1939 | ||
1940 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1941 | return -EINVAL; | |
1942 | ||
1943 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1944 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1945 | ||
3b85875a JB |
1946 | rtnl_lock(); |
1947 | ||
bba95fef | 1948 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1949 | if (err) |
3b85875a | 1950 | goto out_rtnl; |
2ec600d6 LCC |
1951 | |
1952 | if (!drv->ops->add_mpath) { | |
1953 | err = -EOPNOTSUPP; | |
1954 | goto out; | |
1955 | } | |
1956 | ||
eec60b03 JM |
1957 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1958 | err = -EOPNOTSUPP; | |
1959 | goto out; | |
1960 | } | |
1961 | ||
35a8efe1 JM |
1962 | if (!netif_running(dev)) { |
1963 | err = -ENETDOWN; | |
1964 | goto out; | |
1965 | } | |
1966 | ||
2ec600d6 | 1967 | err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
1968 | |
1969 | out: | |
1970 | cfg80211_put_dev(drv); | |
1971 | dev_put(dev); | |
3b85875a JB |
1972 | out_rtnl: |
1973 | rtnl_unlock(); | |
1974 | ||
2ec600d6 LCC |
1975 | return err; |
1976 | } | |
1977 | ||
1978 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
1979 | { | |
1980 | struct cfg80211_registered_device *drv; | |
1981 | int err; | |
1982 | struct net_device *dev; | |
1983 | u8 *dst = NULL; | |
1984 | ||
1985 | if (info->attrs[NL80211_ATTR_MAC]) | |
1986 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1987 | ||
3b85875a JB |
1988 | rtnl_lock(); |
1989 | ||
bba95fef | 1990 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1991 | if (err) |
3b85875a | 1992 | goto out_rtnl; |
2ec600d6 LCC |
1993 | |
1994 | if (!drv->ops->del_mpath) { | |
1995 | err = -EOPNOTSUPP; | |
1996 | goto out; | |
1997 | } | |
1998 | ||
2ec600d6 | 1999 | err = drv->ops->del_mpath(&drv->wiphy, dev, dst); |
2ec600d6 LCC |
2000 | |
2001 | out: | |
2002 | cfg80211_put_dev(drv); | |
2003 | dev_put(dev); | |
3b85875a JB |
2004 | out_rtnl: |
2005 | rtnl_unlock(); | |
2006 | ||
2ec600d6 LCC |
2007 | return err; |
2008 | } | |
2009 | ||
9f1ba906 JM |
2010 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2011 | { | |
2012 | struct cfg80211_registered_device *drv; | |
2013 | int err; | |
2014 | struct net_device *dev; | |
2015 | struct bss_parameters params; | |
2016 | ||
2017 | memset(¶ms, 0, sizeof(params)); | |
2018 | /* default to not changing parameters */ | |
2019 | params.use_cts_prot = -1; | |
2020 | params.use_short_preamble = -1; | |
2021 | params.use_short_slot_time = -1; | |
2022 | ||
2023 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2024 | params.use_cts_prot = | |
2025 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2026 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2027 | params.use_short_preamble = | |
2028 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2029 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2030 | params.use_short_slot_time = | |
2031 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2032 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2033 | params.basic_rates = | |
2034 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2035 | params.basic_rates_len = | |
2036 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2037 | } | |
9f1ba906 | 2038 | |
3b85875a JB |
2039 | rtnl_lock(); |
2040 | ||
9f1ba906 JM |
2041 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2042 | if (err) | |
3b85875a | 2043 | goto out_rtnl; |
9f1ba906 JM |
2044 | |
2045 | if (!drv->ops->change_bss) { | |
2046 | err = -EOPNOTSUPP; | |
2047 | goto out; | |
2048 | } | |
2049 | ||
eec60b03 JM |
2050 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
2051 | err = -EOPNOTSUPP; | |
2052 | goto out; | |
2053 | } | |
2054 | ||
9f1ba906 | 2055 | err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms); |
9f1ba906 JM |
2056 | |
2057 | out: | |
2058 | cfg80211_put_dev(drv); | |
2059 | dev_put(dev); | |
3b85875a JB |
2060 | out_rtnl: |
2061 | rtnl_unlock(); | |
2062 | ||
9f1ba906 JM |
2063 | return err; |
2064 | } | |
2065 | ||
b2e1b302 LR |
2066 | static const struct nla_policy |
2067 | reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
2068 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
2069 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2070 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2071 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2072 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2073 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2074 | }; | |
2075 | ||
2076 | static int parse_reg_rule(struct nlattr *tb[], | |
2077 | struct ieee80211_reg_rule *reg_rule) | |
2078 | { | |
2079 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2080 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2081 | ||
2082 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2083 | return -EINVAL; | |
2084 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2085 | return -EINVAL; | |
2086 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2087 | return -EINVAL; | |
2088 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2089 | return -EINVAL; | |
2090 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2091 | return -EINVAL; | |
2092 | ||
2093 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2094 | ||
2095 | freq_range->start_freq_khz = | |
2096 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2097 | freq_range->end_freq_khz = | |
2098 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2099 | freq_range->max_bandwidth_khz = | |
2100 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2101 | ||
2102 | power_rule->max_eirp = | |
2103 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2104 | ||
2105 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2106 | power_rule->max_antenna_gain = | |
2107 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2108 | ||
2109 | return 0; | |
2110 | } | |
2111 | ||
2112 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2113 | { | |
2114 | int r; | |
2115 | char *data = NULL; | |
2116 | ||
80778f18 LR |
2117 | /* |
2118 | * You should only get this when cfg80211 hasn't yet initialized | |
2119 | * completely when built-in to the kernel right between the time | |
2120 | * window between nl80211_init() and regulatory_init(), if that is | |
2121 | * even possible. | |
2122 | */ | |
2123 | mutex_lock(&cfg80211_mutex); | |
2124 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2125 | mutex_unlock(&cfg80211_mutex); |
2126 | return -EINPROGRESS; | |
80778f18 | 2127 | } |
fe33eb39 | 2128 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2129 | |
fe33eb39 LR |
2130 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2131 | return -EINVAL; | |
b2e1b302 LR |
2132 | |
2133 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2134 | ||
2135 | #ifdef CONFIG_WIRELESS_OLD_REGULATORY | |
2136 | /* We ignore world regdom requests with the old regdom setup */ | |
fe33eb39 LR |
2137 | if (is_world_regdom(data)) |
2138 | return -EINVAL; | |
b2e1b302 | 2139 | #endif |
fe33eb39 LR |
2140 | |
2141 | r = regulatory_hint_user(data); | |
2142 | ||
b2e1b302 LR |
2143 | return r; |
2144 | } | |
2145 | ||
93da9cc1 | 2146 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2147 | struct genl_info *info) | |
2148 | { | |
2149 | struct cfg80211_registered_device *drv; | |
2150 | struct mesh_config cur_params; | |
2151 | int err; | |
2152 | struct net_device *dev; | |
2153 | void *hdr; | |
2154 | struct nlattr *pinfoattr; | |
2155 | struct sk_buff *msg; | |
2156 | ||
3b85875a JB |
2157 | rtnl_lock(); |
2158 | ||
93da9cc1 | 2159 | /* Look up our device */ |
2160 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2161 | if (err) | |
3b85875a | 2162 | goto out_rtnl; |
93da9cc1 | 2163 | |
f3f92586 JM |
2164 | if (!drv->ops->get_mesh_params) { |
2165 | err = -EOPNOTSUPP; | |
2166 | goto out; | |
2167 | } | |
2168 | ||
93da9cc1 | 2169 | /* Get the mesh params */ |
93da9cc1 | 2170 | err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params); |
93da9cc1 | 2171 | if (err) |
2172 | goto out; | |
2173 | ||
2174 | /* Draw up a netlink message to send back */ | |
2175 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
2176 | if (!msg) { | |
2177 | err = -ENOBUFS; | |
2178 | goto out; | |
2179 | } | |
2180 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2181 | NL80211_CMD_GET_MESH_PARAMS); | |
2182 | if (!hdr) | |
2183 | goto nla_put_failure; | |
2184 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2185 | if (!pinfoattr) | |
2186 | goto nla_put_failure; | |
2187 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2188 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2189 | cur_params.dot11MeshRetryTimeout); | |
2190 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2191 | cur_params.dot11MeshConfirmTimeout); | |
2192 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2193 | cur_params.dot11MeshHoldingTimeout); | |
2194 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2195 | cur_params.dot11MeshMaxPeerLinks); | |
2196 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2197 | cur_params.dot11MeshMaxRetries); | |
2198 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2199 | cur_params.dot11MeshTTL); | |
2200 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2201 | cur_params.auto_open_plinks); | |
2202 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2203 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2204 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2205 | cur_params.path_refresh_time); | |
2206 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2207 | cur_params.min_discovery_timeout); | |
2208 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2209 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2210 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2211 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2212 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2213 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
2214 | nla_nest_end(msg, pinfoattr); | |
2215 | genlmsg_end(msg, hdr); | |
2216 | err = genlmsg_unicast(msg, info->snd_pid); | |
2217 | goto out; | |
2218 | ||
3b85875a | 2219 | nla_put_failure: |
93da9cc1 | 2220 | genlmsg_cancel(msg, hdr); |
2221 | err = -EMSGSIZE; | |
3b85875a | 2222 | out: |
93da9cc1 | 2223 | /* Cleanup */ |
2224 | cfg80211_put_dev(drv); | |
2225 | dev_put(dev); | |
3b85875a JB |
2226 | out_rtnl: |
2227 | rtnl_unlock(); | |
2228 | ||
93da9cc1 | 2229 | return err; |
2230 | } | |
2231 | ||
2232 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2233 | do {\ | |
2234 | if (table[attr_num]) {\ | |
2235 | cfg.param = nla_fn(table[attr_num]); \ | |
2236 | mask |= (1 << (attr_num - 1)); \ | |
2237 | } \ | |
2238 | } while (0);\ | |
2239 | ||
2240 | static struct nla_policy | |
2241 | nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = { | |
2242 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, | |
2243 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2244 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2245 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2246 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2247 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2248 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2249 | ||
2250 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2251 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2252 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2253 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2254 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2255 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2256 | }; | |
2257 | ||
2258 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2259 | { | |
2260 | int err; | |
2261 | u32 mask; | |
2262 | struct cfg80211_registered_device *drv; | |
2263 | struct net_device *dev; | |
2264 | struct mesh_config cfg; | |
2265 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2266 | struct nlattr *parent_attr; | |
2267 | ||
2268 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2269 | if (!parent_attr) | |
2270 | return -EINVAL; | |
2271 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2272 | parent_attr, nl80211_meshconf_params_policy)) | |
2273 | return -EINVAL; | |
2274 | ||
3b85875a JB |
2275 | rtnl_lock(); |
2276 | ||
93da9cc1 | 2277 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2278 | if (err) | |
3b85875a | 2279 | goto out_rtnl; |
93da9cc1 | 2280 | |
f3f92586 JM |
2281 | if (!drv->ops->set_mesh_params) { |
2282 | err = -EOPNOTSUPP; | |
2283 | goto out; | |
2284 | } | |
2285 | ||
93da9cc1 | 2286 | /* This makes sure that there aren't more than 32 mesh config |
2287 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2288 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2289 | ||
2290 | /* Fill in the params struct */ | |
2291 | mask = 0; | |
2292 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2293 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2294 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2295 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2296 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2297 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2298 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2299 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2300 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2301 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2302 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2303 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2304 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2305 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2306 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2307 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2308 | nla_get_u8); | |
2309 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2310 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2311 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2312 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2313 | nla_get_u16); | |
2314 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2315 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2316 | nla_get_u32); | |
2317 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2318 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2319 | nla_get_u16); | |
2320 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2321 | dot11MeshHWMPnetDiameterTraversalTime, | |
2322 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2323 | nla_get_u16); | |
2324 | ||
2325 | /* Apply changes */ | |
93da9cc1 | 2326 | err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask); |
93da9cc1 | 2327 | |
f3f92586 | 2328 | out: |
93da9cc1 | 2329 | /* cleanup */ |
2330 | cfg80211_put_dev(drv); | |
2331 | dev_put(dev); | |
3b85875a JB |
2332 | out_rtnl: |
2333 | rtnl_unlock(); | |
2334 | ||
93da9cc1 | 2335 | return err; |
2336 | } | |
2337 | ||
2338 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2339 | ||
f130347c LR |
2340 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2341 | { | |
2342 | struct sk_buff *msg; | |
2343 | void *hdr = NULL; | |
2344 | struct nlattr *nl_reg_rules; | |
2345 | unsigned int i; | |
2346 | int err = -EINVAL; | |
2347 | ||
a1794390 | 2348 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2349 | |
2350 | if (!cfg80211_regdomain) | |
2351 | goto out; | |
2352 | ||
2353 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
2354 | if (!msg) { | |
2355 | err = -ENOBUFS; | |
2356 | goto out; | |
2357 | } | |
2358 | ||
2359 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2360 | NL80211_CMD_GET_REG); | |
2361 | if (!hdr) | |
2362 | goto nla_put_failure; | |
2363 | ||
2364 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2365 | cfg80211_regdomain->alpha2); | |
2366 | ||
2367 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2368 | if (!nl_reg_rules) | |
2369 | goto nla_put_failure; | |
2370 | ||
2371 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2372 | struct nlattr *nl_reg_rule; | |
2373 | const struct ieee80211_reg_rule *reg_rule; | |
2374 | const struct ieee80211_freq_range *freq_range; | |
2375 | const struct ieee80211_power_rule *power_rule; | |
2376 | ||
2377 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2378 | freq_range = ®_rule->freq_range; | |
2379 | power_rule = ®_rule->power_rule; | |
2380 | ||
2381 | nl_reg_rule = nla_nest_start(msg, i); | |
2382 | if (!nl_reg_rule) | |
2383 | goto nla_put_failure; | |
2384 | ||
2385 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2386 | reg_rule->flags); | |
2387 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2388 | freq_range->start_freq_khz); | |
2389 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2390 | freq_range->end_freq_khz); | |
2391 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2392 | freq_range->max_bandwidth_khz); | |
2393 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2394 | power_rule->max_antenna_gain); | |
2395 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2396 | power_rule->max_eirp); | |
2397 | ||
2398 | nla_nest_end(msg, nl_reg_rule); | |
2399 | } | |
2400 | ||
2401 | nla_nest_end(msg, nl_reg_rules); | |
2402 | ||
2403 | genlmsg_end(msg, hdr); | |
2404 | err = genlmsg_unicast(msg, info->snd_pid); | |
2405 | goto out; | |
2406 | ||
2407 | nla_put_failure: | |
2408 | genlmsg_cancel(msg, hdr); | |
2409 | err = -EMSGSIZE; | |
2410 | out: | |
a1794390 | 2411 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2412 | return err; |
2413 | } | |
2414 | ||
b2e1b302 LR |
2415 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2416 | { | |
2417 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2418 | struct nlattr *nl_reg_rule; | |
2419 | char *alpha2 = NULL; | |
2420 | int rem_reg_rules = 0, r = 0; | |
2421 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2422 | struct ieee80211_regdomain *rd = NULL; | |
2423 | ||
2424 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2425 | return -EINVAL; | |
2426 | ||
2427 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2428 | return -EINVAL; | |
2429 | ||
2430 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2431 | ||
2432 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2433 | rem_reg_rules) { | |
2434 | num_rules++; | |
2435 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
2436 | goto bad_reg; | |
2437 | } | |
2438 | ||
2439 | if (!reg_is_valid_request(alpha2)) | |
2440 | return -EINVAL; | |
2441 | ||
2442 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2443 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2444 | ||
2445 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
2446 | if (!rd) | |
2447 | return -ENOMEM; | |
2448 | ||
2449 | rd->n_reg_rules = num_rules; | |
2450 | rd->alpha2[0] = alpha2[0]; | |
2451 | rd->alpha2[1] = alpha2[1]; | |
2452 | ||
2453 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2454 | rem_reg_rules) { | |
2455 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2456 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2457 | reg_rule_policy); | |
2458 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2459 | if (r) | |
2460 | goto bad_reg; | |
2461 | ||
2462 | rule_idx++; | |
2463 | ||
2464 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) | |
2465 | goto bad_reg; | |
2466 | } | |
2467 | ||
2468 | BUG_ON(rule_idx != num_rules); | |
2469 | ||
a1794390 | 2470 | mutex_lock(&cfg80211_mutex); |
b2e1b302 | 2471 | r = set_regdom(rd); |
a1794390 | 2472 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 LR |
2473 | return r; |
2474 | ||
d2372b31 | 2475 | bad_reg: |
b2e1b302 LR |
2476 | kfree(rd); |
2477 | return -EINVAL; | |
2478 | } | |
2479 | ||
2a519311 JB |
2480 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2481 | { | |
2482 | struct cfg80211_registered_device *drv; | |
2483 | struct net_device *dev; | |
2484 | struct cfg80211_scan_request *request; | |
2485 | struct cfg80211_ssid *ssid; | |
2486 | struct ieee80211_channel *channel; | |
2487 | struct nlattr *attr; | |
2488 | struct wiphy *wiphy; | |
2489 | int err, tmp, n_ssids = 0, n_channels = 0, i; | |
2490 | enum ieee80211_band band; | |
70692ad2 | 2491 | size_t ie_len; |
2a519311 | 2492 | |
f4a11bb0 JB |
2493 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2494 | return -EINVAL; | |
2495 | ||
3b85875a JB |
2496 | rtnl_lock(); |
2497 | ||
2a519311 JB |
2498 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2499 | if (err) | |
3b85875a | 2500 | goto out_rtnl; |
2a519311 JB |
2501 | |
2502 | wiphy = &drv->wiphy; | |
2503 | ||
2504 | if (!drv->ops->scan) { | |
2505 | err = -EOPNOTSUPP; | |
2506 | goto out; | |
2507 | } | |
2508 | ||
35a8efe1 JM |
2509 | if (!netif_running(dev)) { |
2510 | err = -ENETDOWN; | |
2511 | goto out; | |
2512 | } | |
2513 | ||
2a519311 JB |
2514 | if (drv->scan_req) { |
2515 | err = -EBUSY; | |
3b85875a | 2516 | goto out; |
2a519311 JB |
2517 | } |
2518 | ||
2519 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
2520 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) | |
2521 | n_channels++; | |
2522 | if (!n_channels) { | |
2523 | err = -EINVAL; | |
3b85875a | 2524 | goto out; |
2a519311 JB |
2525 | } |
2526 | } else { | |
2527 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) | |
2528 | if (wiphy->bands[band]) | |
2529 | n_channels += wiphy->bands[band]->n_channels; | |
2530 | } | |
2531 | ||
2532 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2533 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2534 | n_ssids++; | |
2535 | ||
2536 | if (n_ssids > wiphy->max_scan_ssids) { | |
2537 | err = -EINVAL; | |
3b85875a | 2538 | goto out; |
2a519311 JB |
2539 | } |
2540 | ||
70692ad2 JM |
2541 | if (info->attrs[NL80211_ATTR_IE]) |
2542 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2543 | else | |
2544 | ie_len = 0; | |
2545 | ||
18a83659 JB |
2546 | if (ie_len > wiphy->max_scan_ie_len) { |
2547 | err = -EINVAL; | |
2548 | goto out; | |
2549 | } | |
2550 | ||
2a519311 JB |
2551 | request = kzalloc(sizeof(*request) |
2552 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
2553 | + sizeof(channel) * n_channels |
2554 | + ie_len, GFP_KERNEL); | |
2a519311 JB |
2555 | if (!request) { |
2556 | err = -ENOMEM; | |
3b85875a | 2557 | goto out; |
2a519311 JB |
2558 | } |
2559 | ||
2560 | request->channels = (void *)((char *)request + sizeof(*request)); | |
2561 | request->n_channels = n_channels; | |
2562 | if (n_ssids) | |
2563 | request->ssids = (void *)(request->channels + n_channels); | |
2564 | request->n_ssids = n_ssids; | |
70692ad2 JM |
2565 | if (ie_len) { |
2566 | if (request->ssids) | |
2567 | request->ie = (void *)(request->ssids + n_ssids); | |
2568 | else | |
2569 | request->ie = (void *)(request->channels + n_channels); | |
2570 | } | |
2a519311 JB |
2571 | |
2572 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
2573 | /* user specified, bail out if channel not found */ | |
2574 | request->n_channels = n_channels; | |
2575 | i = 0; | |
2576 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { | |
2577 | request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
2578 | if (!request->channels[i]) { | |
2579 | err = -EINVAL; | |
2580 | goto out_free; | |
2581 | } | |
2582 | i++; | |
2583 | } | |
2584 | } else { | |
2585 | /* all channels */ | |
2586 | i = 0; | |
2587 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
2588 | int j; | |
2589 | if (!wiphy->bands[band]) | |
2590 | continue; | |
2591 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
2592 | request->channels[i] = &wiphy->bands[band]->channels[j]; | |
2593 | i++; | |
2594 | } | |
2595 | } | |
2596 | } | |
2597 | ||
2598 | i = 0; | |
2599 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
2600 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
2601 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
2602 | err = -EINVAL; | |
2603 | goto out_free; | |
2604 | } | |
2605 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
2606 | request->ssids[i].ssid_len = nla_len(attr); | |
2607 | i++; | |
2608 | } | |
2609 | } | |
2610 | ||
70692ad2 JM |
2611 | if (info->attrs[NL80211_ATTR_IE]) { |
2612 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
2613 | memcpy((void *)request->ie, |
2614 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
2615 | request->ie_len); |
2616 | } | |
2617 | ||
2a519311 JB |
2618 | request->ifidx = dev->ifindex; |
2619 | request->wiphy = &drv->wiphy; | |
2620 | ||
2621 | drv->scan_req = request; | |
2622 | err = drv->ops->scan(&drv->wiphy, dev, request); | |
2623 | ||
2624 | out_free: | |
2625 | if (err) { | |
2626 | drv->scan_req = NULL; | |
2627 | kfree(request); | |
2628 | } | |
2a519311 JB |
2629 | out: |
2630 | cfg80211_put_dev(drv); | |
2631 | dev_put(dev); | |
3b85875a JB |
2632 | out_rtnl: |
2633 | rtnl_unlock(); | |
2634 | ||
2a519311 JB |
2635 | return err; |
2636 | } | |
2637 | ||
2638 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
2639 | struct cfg80211_registered_device *rdev, | |
2640 | struct net_device *dev, | |
2641 | struct cfg80211_bss *res) | |
2642 | { | |
2643 | void *hdr; | |
2644 | struct nlattr *bss; | |
2645 | ||
2646 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
2647 | NL80211_CMD_NEW_SCAN_RESULTS); | |
2648 | if (!hdr) | |
2649 | return -1; | |
2650 | ||
2651 | NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION, | |
2652 | rdev->bss_generation); | |
2653 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2654 | ||
2655 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
2656 | if (!bss) | |
2657 | goto nla_put_failure; | |
2658 | if (!is_zero_ether_addr(res->bssid)) | |
2659 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
2660 | if (res->information_elements && res->len_information_elements) | |
2661 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
2662 | res->len_information_elements, | |
2663 | res->information_elements); | |
2664 | if (res->tsf) | |
2665 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
2666 | if (res->beacon_interval) | |
2667 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
2668 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
2669 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
2670 | ||
77965c97 | 2671 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
2672 | case CFG80211_SIGNAL_TYPE_MBM: |
2673 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
2674 | break; | |
2675 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
2676 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
2677 | break; | |
2678 | default: | |
2679 | break; | |
2680 | } | |
2681 | ||
2682 | nla_nest_end(msg, bss); | |
2683 | ||
2684 | return genlmsg_end(msg, hdr); | |
2685 | ||
2686 | nla_put_failure: | |
2687 | genlmsg_cancel(msg, hdr); | |
2688 | return -EMSGSIZE; | |
2689 | } | |
2690 | ||
2691 | static int nl80211_dump_scan(struct sk_buff *skb, | |
2692 | struct netlink_callback *cb) | |
2693 | { | |
2694 | struct cfg80211_registered_device *dev; | |
2695 | struct net_device *netdev; | |
2696 | struct cfg80211_internal_bss *scan; | |
2697 | int ifidx = cb->args[0]; | |
2698 | int start = cb->args[1], idx = 0; | |
2699 | int err; | |
2700 | ||
2701 | if (!ifidx) { | |
2702 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
2703 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
2704 | nl80211_policy); | |
2705 | if (err) | |
2706 | return err; | |
2707 | ||
2708 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
2709 | return -EINVAL; | |
2710 | ||
2711 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
2712 | if (!ifidx) | |
2713 | return -EINVAL; | |
2714 | cb->args[0] = ifidx; | |
2715 | } | |
2716 | ||
2717 | netdev = dev_get_by_index(&init_net, ifidx); | |
2718 | if (!netdev) | |
2719 | return -ENODEV; | |
2720 | ||
2721 | dev = cfg80211_get_dev_from_ifindex(ifidx); | |
2722 | if (IS_ERR(dev)) { | |
2723 | err = PTR_ERR(dev); | |
2724 | goto out_put_netdev; | |
2725 | } | |
2726 | ||
2727 | spin_lock_bh(&dev->bss_lock); | |
2728 | cfg80211_bss_expire(dev); | |
2729 | ||
2730 | list_for_each_entry(scan, &dev->bss_list, list) { | |
2731 | if (++idx <= start) | |
2732 | continue; | |
2733 | if (nl80211_send_bss(skb, | |
2734 | NETLINK_CB(cb->skb).pid, | |
2735 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2736 | dev, netdev, &scan->pub) < 0) { | |
2737 | idx--; | |
2738 | goto out; | |
2739 | } | |
2740 | } | |
2741 | ||
2742 | out: | |
2743 | spin_unlock_bh(&dev->bss_lock); | |
2744 | ||
2745 | cb->args[1] = idx; | |
2746 | err = skb->len; | |
2747 | cfg80211_put_dev(dev); | |
2748 | out_put_netdev: | |
2749 | dev_put(netdev); | |
2750 | ||
2751 | return err; | |
2752 | } | |
2753 | ||
255e737e JM |
2754 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
2755 | { | |
2756 | return auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM || | |
2757 | auth_type == NL80211_AUTHTYPE_SHARED_KEY || | |
2758 | auth_type == NL80211_AUTHTYPE_FT || | |
2759 | auth_type == NL80211_AUTHTYPE_NETWORK_EAP; | |
2760 | } | |
2761 | ||
636a5d36 JM |
2762 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
2763 | { | |
2764 | struct cfg80211_registered_device *drv; | |
2765 | struct net_device *dev; | |
2766 | struct cfg80211_auth_request req; | |
2767 | struct wiphy *wiphy; | |
2768 | int err; | |
2769 | ||
f4a11bb0 JB |
2770 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2771 | return -EINVAL; | |
2772 | ||
2773 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2774 | return -EINVAL; | |
2775 | ||
1778092e JM |
2776 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
2777 | return -EINVAL; | |
2778 | ||
636a5d36 JM |
2779 | rtnl_lock(); |
2780 | ||
2781 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2782 | if (err) | |
2783 | goto unlock_rtnl; | |
2784 | ||
2785 | if (!drv->ops->auth) { | |
2786 | err = -EOPNOTSUPP; | |
2787 | goto out; | |
2788 | } | |
2789 | ||
eec60b03 JM |
2790 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2791 | err = -EOPNOTSUPP; | |
2792 | goto out; | |
2793 | } | |
2794 | ||
35a8efe1 JM |
2795 | if (!netif_running(dev)) { |
2796 | err = -ENETDOWN; | |
2797 | goto out; | |
2798 | } | |
2799 | ||
636a5d36 JM |
2800 | wiphy = &drv->wiphy; |
2801 | memset(&req, 0, sizeof(req)); | |
2802 | ||
2803 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2804 | ||
2805 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
2806 | req.chan = ieee80211_get_channel( | |
2807 | wiphy, | |
2808 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
2809 | if (!req.chan) { | |
2810 | err = -EINVAL; | |
2811 | goto out; | |
2812 | } | |
2813 | } | |
2814 | ||
2815 | if (info->attrs[NL80211_ATTR_SSID]) { | |
2816 | req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
2817 | req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2818 | } | |
2819 | ||
2820 | if (info->attrs[NL80211_ATTR_IE]) { | |
2821 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2822 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2823 | } | |
2824 | ||
1778092e JM |
2825 | req.auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
2826 | if (!nl80211_valid_auth_type(req.auth_type)) { | |
2827 | err = -EINVAL; | |
2828 | goto out; | |
636a5d36 JM |
2829 | } |
2830 | ||
2831 | err = drv->ops->auth(&drv->wiphy, dev, &req); | |
2832 | ||
2833 | out: | |
2834 | cfg80211_put_dev(drv); | |
2835 | dev_put(dev); | |
2836 | unlock_rtnl: | |
2837 | rtnl_unlock(); | |
2838 | return err; | |
2839 | } | |
2840 | ||
2841 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) | |
2842 | { | |
2843 | struct cfg80211_registered_device *drv; | |
2844 | struct net_device *dev; | |
2845 | struct cfg80211_assoc_request req; | |
2846 | struct wiphy *wiphy; | |
2847 | int err; | |
2848 | ||
f4a11bb0 JB |
2849 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2850 | return -EINVAL; | |
2851 | ||
2852 | if (!info->attrs[NL80211_ATTR_MAC] || | |
2853 | !info->attrs[NL80211_ATTR_SSID]) | |
2854 | return -EINVAL; | |
2855 | ||
636a5d36 JM |
2856 | rtnl_lock(); |
2857 | ||
2858 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2859 | if (err) | |
2860 | goto unlock_rtnl; | |
2861 | ||
2862 | if (!drv->ops->assoc) { | |
2863 | err = -EOPNOTSUPP; | |
2864 | goto out; | |
2865 | } | |
2866 | ||
eec60b03 JM |
2867 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2868 | err = -EOPNOTSUPP; | |
2869 | goto out; | |
2870 | } | |
2871 | ||
35a8efe1 JM |
2872 | if (!netif_running(dev)) { |
2873 | err = -ENETDOWN; | |
2874 | goto out; | |
2875 | } | |
2876 | ||
636a5d36 JM |
2877 | wiphy = &drv->wiphy; |
2878 | memset(&req, 0, sizeof(req)); | |
2879 | ||
2880 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2881 | ||
2882 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
2883 | req.chan = ieee80211_get_channel( | |
2884 | wiphy, | |
2885 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
2886 | if (!req.chan) { | |
2887 | err = -EINVAL; | |
2888 | goto out; | |
2889 | } | |
2890 | } | |
2891 | ||
636a5d36 JM |
2892 | req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
2893 | req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2894 | ||
2895 | if (info->attrs[NL80211_ATTR_IE]) { | |
2896 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2897 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2898 | } | |
2899 | ||
2900 | err = drv->ops->assoc(&drv->wiphy, dev, &req); | |
2901 | ||
2902 | out: | |
2903 | cfg80211_put_dev(drv); | |
2904 | dev_put(dev); | |
2905 | unlock_rtnl: | |
2906 | rtnl_unlock(); | |
2907 | return err; | |
2908 | } | |
2909 | ||
2910 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
2911 | { | |
2912 | struct cfg80211_registered_device *drv; | |
2913 | struct net_device *dev; | |
2914 | struct cfg80211_deauth_request req; | |
2915 | struct wiphy *wiphy; | |
2916 | int err; | |
2917 | ||
f4a11bb0 JB |
2918 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2919 | return -EINVAL; | |
2920 | ||
2921 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2922 | return -EINVAL; | |
2923 | ||
2924 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
2925 | return -EINVAL; | |
2926 | ||
636a5d36 JM |
2927 | rtnl_lock(); |
2928 | ||
2929 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2930 | if (err) | |
2931 | goto unlock_rtnl; | |
2932 | ||
2933 | if (!drv->ops->deauth) { | |
2934 | err = -EOPNOTSUPP; | |
2935 | goto out; | |
2936 | } | |
2937 | ||
eec60b03 JM |
2938 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2939 | err = -EOPNOTSUPP; | |
2940 | goto out; | |
2941 | } | |
2942 | ||
35a8efe1 JM |
2943 | if (!netif_running(dev)) { |
2944 | err = -ENETDOWN; | |
2945 | goto out; | |
2946 | } | |
2947 | ||
636a5d36 JM |
2948 | wiphy = &drv->wiphy; |
2949 | memset(&req, 0, sizeof(req)); | |
2950 | ||
2951 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2952 | ||
f4a11bb0 JB |
2953 | req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
2954 | if (req.reason_code == 0) { | |
2955 | /* Reason Code 0 is reserved */ | |
2956 | err = -EINVAL; | |
2957 | goto out; | |
255e737e | 2958 | } |
636a5d36 JM |
2959 | |
2960 | if (info->attrs[NL80211_ATTR_IE]) { | |
2961 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2962 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2963 | } | |
2964 | ||
2965 | err = drv->ops->deauth(&drv->wiphy, dev, &req); | |
2966 | ||
2967 | out: | |
2968 | cfg80211_put_dev(drv); | |
2969 | dev_put(dev); | |
2970 | unlock_rtnl: | |
2971 | rtnl_unlock(); | |
2972 | return err; | |
2973 | } | |
2974 | ||
2975 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
2976 | { | |
2977 | struct cfg80211_registered_device *drv; | |
2978 | struct net_device *dev; | |
2979 | struct cfg80211_disassoc_request req; | |
2980 | struct wiphy *wiphy; | |
2981 | int err; | |
2982 | ||
f4a11bb0 JB |
2983 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2984 | return -EINVAL; | |
2985 | ||
2986 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2987 | return -EINVAL; | |
2988 | ||
2989 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
2990 | return -EINVAL; | |
2991 | ||
636a5d36 JM |
2992 | rtnl_lock(); |
2993 | ||
2994 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2995 | if (err) | |
2996 | goto unlock_rtnl; | |
2997 | ||
2998 | if (!drv->ops->disassoc) { | |
2999 | err = -EOPNOTSUPP; | |
3000 | goto out; | |
3001 | } | |
3002 | ||
eec60b03 JM |
3003 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3004 | err = -EOPNOTSUPP; | |
3005 | goto out; | |
3006 | } | |
3007 | ||
35a8efe1 JM |
3008 | if (!netif_running(dev)) { |
3009 | err = -ENETDOWN; | |
3010 | goto out; | |
3011 | } | |
3012 | ||
636a5d36 JM |
3013 | wiphy = &drv->wiphy; |
3014 | memset(&req, 0, sizeof(req)); | |
3015 | ||
3016 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3017 | ||
f4a11bb0 JB |
3018 | req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3019 | if (req.reason_code == 0) { | |
3020 | /* Reason Code 0 is reserved */ | |
3021 | err = -EINVAL; | |
3022 | goto out; | |
255e737e | 3023 | } |
636a5d36 JM |
3024 | |
3025 | if (info->attrs[NL80211_ATTR_IE]) { | |
3026 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3027 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3028 | } | |
3029 | ||
3030 | err = drv->ops->disassoc(&drv->wiphy, dev, &req); | |
3031 | ||
3032 | out: | |
3033 | cfg80211_put_dev(drv); | |
3034 | dev_put(dev); | |
3035 | unlock_rtnl: | |
3036 | rtnl_unlock(); | |
3037 | return err; | |
3038 | } | |
3039 | ||
55682965 JB |
3040 | static struct genl_ops nl80211_ops[] = { |
3041 | { | |
3042 | .cmd = NL80211_CMD_GET_WIPHY, | |
3043 | .doit = nl80211_get_wiphy, | |
3044 | .dumpit = nl80211_dump_wiphy, | |
3045 | .policy = nl80211_policy, | |
3046 | /* can be retrieved by unprivileged users */ | |
3047 | }, | |
3048 | { | |
3049 | .cmd = NL80211_CMD_SET_WIPHY, | |
3050 | .doit = nl80211_set_wiphy, | |
3051 | .policy = nl80211_policy, | |
3052 | .flags = GENL_ADMIN_PERM, | |
3053 | }, | |
3054 | { | |
3055 | .cmd = NL80211_CMD_GET_INTERFACE, | |
3056 | .doit = nl80211_get_interface, | |
3057 | .dumpit = nl80211_dump_interface, | |
3058 | .policy = nl80211_policy, | |
3059 | /* can be retrieved by unprivileged users */ | |
3060 | }, | |
3061 | { | |
3062 | .cmd = NL80211_CMD_SET_INTERFACE, | |
3063 | .doit = nl80211_set_interface, | |
3064 | .policy = nl80211_policy, | |
3065 | .flags = GENL_ADMIN_PERM, | |
3066 | }, | |
3067 | { | |
3068 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
3069 | .doit = nl80211_new_interface, | |
3070 | .policy = nl80211_policy, | |
3071 | .flags = GENL_ADMIN_PERM, | |
3072 | }, | |
3073 | { | |
3074 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
3075 | .doit = nl80211_del_interface, | |
3076 | .policy = nl80211_policy, | |
41ade00f JB |
3077 | .flags = GENL_ADMIN_PERM, |
3078 | }, | |
3079 | { | |
3080 | .cmd = NL80211_CMD_GET_KEY, | |
3081 | .doit = nl80211_get_key, | |
3082 | .policy = nl80211_policy, | |
3083 | .flags = GENL_ADMIN_PERM, | |
3084 | }, | |
3085 | { | |
3086 | .cmd = NL80211_CMD_SET_KEY, | |
3087 | .doit = nl80211_set_key, | |
3088 | .policy = nl80211_policy, | |
3089 | .flags = GENL_ADMIN_PERM, | |
3090 | }, | |
3091 | { | |
3092 | .cmd = NL80211_CMD_NEW_KEY, | |
3093 | .doit = nl80211_new_key, | |
3094 | .policy = nl80211_policy, | |
3095 | .flags = GENL_ADMIN_PERM, | |
3096 | }, | |
3097 | { | |
3098 | .cmd = NL80211_CMD_DEL_KEY, | |
3099 | .doit = nl80211_del_key, | |
3100 | .policy = nl80211_policy, | |
55682965 JB |
3101 | .flags = GENL_ADMIN_PERM, |
3102 | }, | |
ed1b6cc7 JB |
3103 | { |
3104 | .cmd = NL80211_CMD_SET_BEACON, | |
3105 | .policy = nl80211_policy, | |
3106 | .flags = GENL_ADMIN_PERM, | |
3107 | .doit = nl80211_addset_beacon, | |
3108 | }, | |
3109 | { | |
3110 | .cmd = NL80211_CMD_NEW_BEACON, | |
3111 | .policy = nl80211_policy, | |
3112 | .flags = GENL_ADMIN_PERM, | |
3113 | .doit = nl80211_addset_beacon, | |
3114 | }, | |
3115 | { | |
3116 | .cmd = NL80211_CMD_DEL_BEACON, | |
3117 | .policy = nl80211_policy, | |
3118 | .flags = GENL_ADMIN_PERM, | |
3119 | .doit = nl80211_del_beacon, | |
3120 | }, | |
5727ef1b JB |
3121 | { |
3122 | .cmd = NL80211_CMD_GET_STATION, | |
3123 | .doit = nl80211_get_station, | |
2ec600d6 | 3124 | .dumpit = nl80211_dump_station, |
5727ef1b | 3125 | .policy = nl80211_policy, |
5727ef1b JB |
3126 | }, |
3127 | { | |
3128 | .cmd = NL80211_CMD_SET_STATION, | |
3129 | .doit = nl80211_set_station, | |
3130 | .policy = nl80211_policy, | |
3131 | .flags = GENL_ADMIN_PERM, | |
3132 | }, | |
3133 | { | |
3134 | .cmd = NL80211_CMD_NEW_STATION, | |
3135 | .doit = nl80211_new_station, | |
3136 | .policy = nl80211_policy, | |
3137 | .flags = GENL_ADMIN_PERM, | |
3138 | }, | |
3139 | { | |
3140 | .cmd = NL80211_CMD_DEL_STATION, | |
3141 | .doit = nl80211_del_station, | |
3142 | .policy = nl80211_policy, | |
2ec600d6 LCC |
3143 | .flags = GENL_ADMIN_PERM, |
3144 | }, | |
3145 | { | |
3146 | .cmd = NL80211_CMD_GET_MPATH, | |
3147 | .doit = nl80211_get_mpath, | |
3148 | .dumpit = nl80211_dump_mpath, | |
3149 | .policy = nl80211_policy, | |
3150 | .flags = GENL_ADMIN_PERM, | |
3151 | }, | |
3152 | { | |
3153 | .cmd = NL80211_CMD_SET_MPATH, | |
3154 | .doit = nl80211_set_mpath, | |
3155 | .policy = nl80211_policy, | |
3156 | .flags = GENL_ADMIN_PERM, | |
3157 | }, | |
3158 | { | |
3159 | .cmd = NL80211_CMD_NEW_MPATH, | |
3160 | .doit = nl80211_new_mpath, | |
3161 | .policy = nl80211_policy, | |
3162 | .flags = GENL_ADMIN_PERM, | |
3163 | }, | |
3164 | { | |
3165 | .cmd = NL80211_CMD_DEL_MPATH, | |
3166 | .doit = nl80211_del_mpath, | |
3167 | .policy = nl80211_policy, | |
9f1ba906 JM |
3168 | .flags = GENL_ADMIN_PERM, |
3169 | }, | |
3170 | { | |
3171 | .cmd = NL80211_CMD_SET_BSS, | |
3172 | .doit = nl80211_set_bss, | |
3173 | .policy = nl80211_policy, | |
b2e1b302 LR |
3174 | .flags = GENL_ADMIN_PERM, |
3175 | }, | |
f130347c LR |
3176 | { |
3177 | .cmd = NL80211_CMD_GET_REG, | |
3178 | .doit = nl80211_get_reg, | |
3179 | .policy = nl80211_policy, | |
3180 | /* can be retrieved by unprivileged users */ | |
3181 | }, | |
b2e1b302 LR |
3182 | { |
3183 | .cmd = NL80211_CMD_SET_REG, | |
3184 | .doit = nl80211_set_reg, | |
3185 | .policy = nl80211_policy, | |
3186 | .flags = GENL_ADMIN_PERM, | |
3187 | }, | |
3188 | { | |
3189 | .cmd = NL80211_CMD_REQ_SET_REG, | |
3190 | .doit = nl80211_req_set_reg, | |
3191 | .policy = nl80211_policy, | |
93da9cc1 | 3192 | .flags = GENL_ADMIN_PERM, |
3193 | }, | |
3194 | { | |
3195 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
3196 | .doit = nl80211_get_mesh_params, | |
3197 | .policy = nl80211_policy, | |
3198 | /* can be retrieved by unprivileged users */ | |
3199 | }, | |
3200 | { | |
3201 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
3202 | .doit = nl80211_set_mesh_params, | |
3203 | .policy = nl80211_policy, | |
9aed3cc1 JM |
3204 | .flags = GENL_ADMIN_PERM, |
3205 | }, | |
2a519311 JB |
3206 | { |
3207 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
3208 | .doit = nl80211_trigger_scan, | |
3209 | .policy = nl80211_policy, | |
3210 | .flags = GENL_ADMIN_PERM, | |
3211 | }, | |
3212 | { | |
3213 | .cmd = NL80211_CMD_GET_SCAN, | |
3214 | .policy = nl80211_policy, | |
3215 | .dumpit = nl80211_dump_scan, | |
3216 | }, | |
636a5d36 JM |
3217 | { |
3218 | .cmd = NL80211_CMD_AUTHENTICATE, | |
3219 | .doit = nl80211_authenticate, | |
3220 | .policy = nl80211_policy, | |
3221 | .flags = GENL_ADMIN_PERM, | |
3222 | }, | |
3223 | { | |
3224 | .cmd = NL80211_CMD_ASSOCIATE, | |
3225 | .doit = nl80211_associate, | |
3226 | .policy = nl80211_policy, | |
3227 | .flags = GENL_ADMIN_PERM, | |
3228 | }, | |
3229 | { | |
3230 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
3231 | .doit = nl80211_deauthenticate, | |
3232 | .policy = nl80211_policy, | |
3233 | .flags = GENL_ADMIN_PERM, | |
3234 | }, | |
3235 | { | |
3236 | .cmd = NL80211_CMD_DISASSOCIATE, | |
3237 | .doit = nl80211_disassociate, | |
3238 | .policy = nl80211_policy, | |
3239 | .flags = GENL_ADMIN_PERM, | |
3240 | }, | |
55682965 | 3241 | }; |
6039f6d2 JM |
3242 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
3243 | .name = "mlme", | |
3244 | }; | |
55682965 JB |
3245 | |
3246 | /* multicast groups */ | |
3247 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
3248 | .name = "config", | |
3249 | }; | |
2a519311 JB |
3250 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
3251 | .name = "scan", | |
3252 | }; | |
73d54c9e LR |
3253 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
3254 | .name = "regulatory", | |
3255 | }; | |
55682965 JB |
3256 | |
3257 | /* notification functions */ | |
3258 | ||
3259 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
3260 | { | |
3261 | struct sk_buff *msg; | |
3262 | ||
3263 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3264 | if (!msg) | |
3265 | return; | |
3266 | ||
3267 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
3268 | nlmsg_free(msg); | |
3269 | return; | |
3270 | } | |
3271 | ||
3272 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
3273 | } | |
3274 | ||
2a519311 JB |
3275 | static int nl80211_send_scan_donemsg(struct sk_buff *msg, |
3276 | struct cfg80211_registered_device *rdev, | |
3277 | struct net_device *netdev, | |
3278 | u32 pid, u32 seq, int flags, | |
3279 | u32 cmd) | |
3280 | { | |
3281 | void *hdr; | |
3282 | ||
3283 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
3284 | if (!hdr) | |
3285 | return -1; | |
3286 | ||
b5850a7a | 3287 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
3288 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
3289 | ||
3290 | /* XXX: we should probably bounce back the request? */ | |
3291 | ||
3292 | return genlmsg_end(msg, hdr); | |
3293 | ||
3294 | nla_put_failure: | |
3295 | genlmsg_cancel(msg, hdr); | |
3296 | return -EMSGSIZE; | |
3297 | } | |
3298 | ||
3299 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, | |
3300 | struct net_device *netdev) | |
3301 | { | |
3302 | struct sk_buff *msg; | |
3303 | ||
3304 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3305 | if (!msg) | |
3306 | return; | |
3307 | ||
3308 | if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0, | |
3309 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
3310 | nlmsg_free(msg); | |
3311 | return; | |
3312 | } | |
3313 | ||
3314 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
3315 | } | |
3316 | ||
3317 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
3318 | struct net_device *netdev) | |
3319 | { | |
3320 | struct sk_buff *msg; | |
3321 | ||
3322 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3323 | if (!msg) | |
3324 | return; | |
3325 | ||
3326 | if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0, | |
3327 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
3328 | nlmsg_free(msg); | |
3329 | return; | |
3330 | } | |
3331 | ||
3332 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
3333 | } | |
3334 | ||
73d54c9e LR |
3335 | /* |
3336 | * This can happen on global regulatory changes or device specific settings | |
3337 | * based on custom world regulatory domains. | |
3338 | */ | |
3339 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
3340 | { | |
3341 | struct sk_buff *msg; | |
3342 | void *hdr; | |
3343 | ||
3344 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3345 | if (!msg) | |
3346 | return; | |
3347 | ||
3348 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
3349 | if (!hdr) { | |
3350 | nlmsg_free(msg); | |
3351 | return; | |
3352 | } | |
3353 | ||
3354 | /* Userspace can always count this one always being set */ | |
3355 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
3356 | ||
3357 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
3358 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3359 | NL80211_REGDOM_TYPE_WORLD); | |
3360 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
3361 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3362 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
3363 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
3364 | request->intersect) | |
3365 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3366 | NL80211_REGDOM_TYPE_INTERSECTION); | |
3367 | else { | |
3368 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3369 | NL80211_REGDOM_TYPE_COUNTRY); | |
3370 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
3371 | } | |
3372 | ||
3373 | if (wiphy_idx_valid(request->wiphy_idx)) | |
3374 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
3375 | ||
3376 | if (genlmsg_end(msg, hdr) < 0) { | |
3377 | nlmsg_free(msg); | |
3378 | return; | |
3379 | } | |
3380 | ||
3381 | genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL); | |
3382 | ||
3383 | return; | |
3384 | ||
3385 | nla_put_failure: | |
3386 | genlmsg_cancel(msg, hdr); | |
3387 | nlmsg_free(msg); | |
3388 | } | |
3389 | ||
6039f6d2 JM |
3390 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
3391 | struct net_device *netdev, | |
3392 | const u8 *buf, size_t len, | |
3393 | enum nl80211_commands cmd) | |
3394 | { | |
3395 | struct sk_buff *msg; | |
3396 | void *hdr; | |
3397 | ||
d91c01c7 | 3398 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); |
6039f6d2 JM |
3399 | if (!msg) |
3400 | return; | |
3401 | ||
3402 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
3403 | if (!hdr) { | |
3404 | nlmsg_free(msg); | |
3405 | return; | |
3406 | } | |
3407 | ||
3408 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3409 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
3410 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
3411 | ||
3412 | if (genlmsg_end(msg, hdr) < 0) { | |
3413 | nlmsg_free(msg); | |
3414 | return; | |
3415 | } | |
3416 | ||
d91c01c7 | 3417 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC); |
6039f6d2 JM |
3418 | return; |
3419 | ||
3420 | nla_put_failure: | |
3421 | genlmsg_cancel(msg, hdr); | |
3422 | nlmsg_free(msg); | |
3423 | } | |
3424 | ||
3425 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
3426 | struct net_device *netdev, const u8 *buf, size_t len) | |
3427 | { | |
3428 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
3429 | NL80211_CMD_AUTHENTICATE); | |
3430 | } | |
3431 | ||
3432 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
3433 | struct net_device *netdev, const u8 *buf, | |
3434 | size_t len) | |
3435 | { | |
3436 | nl80211_send_mlme_event(rdev, netdev, buf, len, NL80211_CMD_ASSOCIATE); | |
3437 | } | |
3438 | ||
53b46b84 JM |
3439 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
3440 | struct net_device *netdev, const u8 *buf, size_t len) | |
6039f6d2 JM |
3441 | { |
3442 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
3443 | NL80211_CMD_DEAUTHENTICATE); | |
3444 | } | |
3445 | ||
53b46b84 JM |
3446 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
3447 | struct net_device *netdev, const u8 *buf, | |
3448 | size_t len) | |
6039f6d2 JM |
3449 | { |
3450 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
3451 | NL80211_CMD_DISASSOCIATE); | |
3452 | } | |
3453 | ||
a3b8b056 JM |
3454 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
3455 | struct net_device *netdev, const u8 *addr, | |
3456 | enum nl80211_key_type key_type, int key_id, | |
3457 | const u8 *tsc) | |
3458 | { | |
3459 | struct sk_buff *msg; | |
3460 | void *hdr; | |
3461 | ||
3462 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3463 | if (!msg) | |
3464 | return; | |
3465 | ||
3466 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
3467 | if (!hdr) { | |
3468 | nlmsg_free(msg); | |
3469 | return; | |
3470 | } | |
3471 | ||
3472 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3473 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
3474 | if (addr) | |
3475 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
3476 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
3477 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
3478 | if (tsc) | |
3479 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
3480 | ||
3481 | if (genlmsg_end(msg, hdr) < 0) { | |
3482 | nlmsg_free(msg); | |
3483 | return; | |
3484 | } | |
3485 | ||
3486 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
3487 | return; | |
3488 | ||
3489 | nla_put_failure: | |
3490 | genlmsg_cancel(msg, hdr); | |
3491 | nlmsg_free(msg); | |
3492 | } | |
3493 | ||
55682965 JB |
3494 | /* initialisation/exit functions */ |
3495 | ||
3496 | int nl80211_init(void) | |
3497 | { | |
3498 | int err, i; | |
3499 | ||
3500 | err = genl_register_family(&nl80211_fam); | |
3501 | if (err) | |
3502 | return err; | |
3503 | ||
3504 | for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { | |
3505 | err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); | |
3506 | if (err) | |
3507 | goto err_out; | |
3508 | } | |
3509 | ||
3510 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); | |
3511 | if (err) | |
3512 | goto err_out; | |
3513 | ||
2a519311 JB |
3514 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
3515 | if (err) | |
3516 | goto err_out; | |
3517 | ||
73d54c9e LR |
3518 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
3519 | if (err) | |
3520 | goto err_out; | |
3521 | ||
6039f6d2 JM |
3522 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
3523 | if (err) | |
3524 | goto err_out; | |
3525 | ||
55682965 JB |
3526 | return 0; |
3527 | err_out: | |
3528 | genl_unregister_family(&nl80211_fam); | |
3529 | return err; | |
3530 | } | |
3531 | ||
3532 | void nl80211_exit(void) | |
3533 | { | |
3534 | genl_unregister_family(&nl80211_fam); | |
3535 | } |