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370121e5 JB |
1 | /* |
2 | * This file contains our _wx handlers. Make sure you EXPORT_SYMBOL_GPL them | |
4855d25b | 3 | * |
79859051 JB |
4 | * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net> |
5 | * Joseph Jezak <josejx@gentoo.org> | |
6 | * Larry Finger <Larry.Finger@lwfinger.net> | |
7 | * Danny van Dyk <kugelfang@gentoo.org> | |
8 | * Michael Buesch <mbuesch@freenet.de> | |
4855d25b JB |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of version 2 of the GNU General Public License as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
15 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
17 | * more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
22 | * | |
23 | * The full GNU General Public License is included in this distribution in the | |
24 | * file called COPYING. | |
370121e5 JB |
25 | */ |
26 | ||
27 | #include "ieee80211softmac_priv.h" | |
28 | ||
29 | #include <net/iw_handler.h> | |
818667f7 JB |
30 | /* for is_broadcast_ether_addr and is_zero_ether_addr */ |
31 | #include <linux/etherdevice.h> | |
370121e5 JB |
32 | |
33 | int | |
34 | ieee80211softmac_wx_trigger_scan(struct net_device *net_dev, | |
35 | struct iw_request_info *info, | |
36 | union iwreq_data *data, | |
37 | char *extra) | |
38 | { | |
39 | struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); | |
40 | return ieee80211softmac_start_scan(sm); | |
41 | } | |
42 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_trigger_scan); | |
43 | ||
44 | ||
ba2f8c18 | 45 | /* if we're still scanning, return -EAGAIN so that userspace tools |
46 | * can get the complete scan results, otherwise return 0. */ | |
370121e5 JB |
47 | int |
48 | ieee80211softmac_wx_get_scan_results(struct net_device *net_dev, | |
49 | struct iw_request_info *info, | |
50 | union iwreq_data *data, | |
51 | char *extra) | |
52 | { | |
ba2f8c18 | 53 | unsigned long flags; |
370121e5 | 54 | struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); |
ba2f8c18 | 55 | |
56 | spin_lock_irqsave(&sm->lock, flags); | |
57 | if (sm->scanning) { | |
58 | spin_unlock_irqrestore(&sm->lock, flags); | |
59 | return -EAGAIN; | |
60 | } | |
61 | spin_unlock_irqrestore(&sm->lock, flags); | |
370121e5 JB |
62 | return ieee80211_wx_get_scan(sm->ieee, info, data, extra); |
63 | } | |
64 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_scan_results); | |
65 | ||
66 | int | |
67 | ieee80211softmac_wx_set_essid(struct net_device *net_dev, | |
68 | struct iw_request_info *info, | |
69 | union iwreq_data *data, | |
70 | char *extra) | |
71 | { | |
72 | struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); | |
73 | int length = 0; | |
74 | unsigned long flags; | |
75 | ||
76 | spin_lock_irqsave(&sm->lock, flags); | |
77 | ||
78 | sm->associnfo.static_essid = 0; | |
79 | ||
80 | if (data->essid.flags && data->essid.length && extra /*required?*/) { | |
81 | length = min(data->essid.length - 1, IW_ESSID_MAX_SIZE); | |
82 | if (length) { | |
83 | memcpy(sm->associnfo.req_essid.data, extra, length); | |
84 | sm->associnfo.static_essid = 1; | |
85 | } | |
86 | } | |
370121e5 JB |
87 | |
88 | /* set our requested ESSID length. | |
89 | * If applicable, we have already copied the data in */ | |
90 | sm->associnfo.req_essid.len = length; | |
91 | ||
92 | /* queue lower level code to do work (if necessary) */ | |
5c4df6da | 93 | schedule_work(&sm->associnfo.work); |
370121e5 JB |
94 | |
95 | spin_unlock_irqrestore(&sm->lock, flags); | |
96 | return 0; | |
97 | } | |
98 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_essid); | |
99 | ||
100 | int | |
101 | ieee80211softmac_wx_get_essid(struct net_device *net_dev, | |
102 | struct iw_request_info *info, | |
103 | union iwreq_data *data, | |
104 | char *extra) | |
105 | { | |
106 | struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); | |
107 | unsigned long flags; | |
108 | ||
109 | /* avoid getting inconsistent information */ | |
110 | spin_lock_irqsave(&sm->lock, flags); | |
111 | /* If all fails, return ANY (empty) */ | |
112 | data->essid.length = 0; | |
113 | data->essid.flags = 0; /* active */ | |
114 | ||
115 | /* If we have a statically configured ESSID then return it */ | |
116 | if (sm->associnfo.static_essid) { | |
117 | data->essid.length = sm->associnfo.req_essid.len; | |
118 | data->essid.flags = 1; /* active */ | |
119 | memcpy(extra, sm->associnfo.req_essid.data, sm->associnfo.req_essid.len); | |
120 | } | |
121 | ||
122 | /* If we're associating/associated, return that */ | |
123 | if (sm->associated || sm->associnfo.associating) { | |
124 | data->essid.length = sm->associnfo.associate_essid.len; | |
125 | data->essid.flags = 1; /* active */ | |
126 | memcpy(extra, sm->associnfo.associate_essid.data, sm->associnfo.associate_essid.len); | |
127 | } | |
128 | spin_unlock_irqrestore(&sm->lock, flags); | |
129 | return 0; | |
130 | } | |
131 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_essid); | |
132 | ||
133 | int | |
134 | ieee80211softmac_wx_set_rate(struct net_device *net_dev, | |
135 | struct iw_request_info *info, | |
136 | union iwreq_data *data, | |
137 | char *extra) | |
138 | { | |
139 | struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); | |
140 | struct ieee80211_device *ieee = mac->ieee; | |
141 | unsigned long flags; | |
142 | s32 in_rate = data->bitrate.value; | |
143 | u8 rate; | |
144 | int is_ofdm = 0; | |
145 | int err = -EINVAL; | |
146 | ||
147 | if (in_rate == -1) { | |
2638fed7 DW |
148 | /* FIXME: We don't correctly handle backing down to lower |
149 | rates, so 801.11g devices start off at 11M for now. People | |
150 | can manually change it if they really need to, but 11M is | |
151 | more reliable. Note similar logic in | |
152 | ieee80211softmac_wx_set_rate() */ | |
153 | if (ieee->modulation & IEEE80211_CCK_MODULATION) | |
370121e5 | 154 | in_rate = 11000000; |
2638fed7 DW |
155 | else |
156 | in_rate = 54000000; | |
370121e5 JB |
157 | } |
158 | ||
159 | switch (in_rate) { | |
160 | case 1000000: | |
161 | rate = IEEE80211_CCK_RATE_1MB; | |
162 | break; | |
163 | case 2000000: | |
164 | rate = IEEE80211_CCK_RATE_2MB; | |
165 | break; | |
166 | case 5500000: | |
167 | rate = IEEE80211_CCK_RATE_5MB; | |
168 | break; | |
169 | case 11000000: | |
170 | rate = IEEE80211_CCK_RATE_11MB; | |
171 | break; | |
172 | case 6000000: | |
173 | rate = IEEE80211_OFDM_RATE_6MB; | |
174 | is_ofdm = 1; | |
175 | break; | |
176 | case 9000000: | |
177 | rate = IEEE80211_OFDM_RATE_9MB; | |
178 | is_ofdm = 1; | |
179 | break; | |
180 | case 12000000: | |
181 | rate = IEEE80211_OFDM_RATE_12MB; | |
182 | is_ofdm = 1; | |
183 | break; | |
184 | case 18000000: | |
185 | rate = IEEE80211_OFDM_RATE_18MB; | |
186 | is_ofdm = 1; | |
187 | break; | |
188 | case 24000000: | |
189 | rate = IEEE80211_OFDM_RATE_24MB; | |
190 | is_ofdm = 1; | |
191 | break; | |
192 | case 36000000: | |
193 | rate = IEEE80211_OFDM_RATE_36MB; | |
194 | is_ofdm = 1; | |
195 | break; | |
196 | case 48000000: | |
197 | rate = IEEE80211_OFDM_RATE_48MB; | |
198 | is_ofdm = 1; | |
199 | break; | |
200 | case 54000000: | |
201 | rate = IEEE80211_OFDM_RATE_54MB; | |
202 | is_ofdm = 1; | |
203 | break; | |
204 | default: | |
205 | goto out; | |
206 | } | |
207 | ||
208 | spin_lock_irqsave(&mac->lock, flags); | |
209 | ||
210 | /* Check if correct modulation for this PHY. */ | |
211 | if (is_ofdm && !(ieee->modulation & IEEE80211_OFDM_MODULATION)) | |
212 | goto out_unlock; | |
213 | ||
8462fe3c DD |
214 | mac->txrates.user_rate = rate; |
215 | ieee80211softmac_recalc_txrates(mac); | |
370121e5 JB |
216 | err = 0; |
217 | ||
218 | out_unlock: | |
219 | spin_unlock_irqrestore(&mac->lock, flags); | |
220 | out: | |
221 | return err; | |
222 | } | |
223 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_rate); | |
224 | ||
225 | int | |
226 | ieee80211softmac_wx_get_rate(struct net_device *net_dev, | |
227 | struct iw_request_info *info, | |
228 | union iwreq_data *data, | |
229 | char *extra) | |
230 | { | |
231 | struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); | |
232 | unsigned long flags; | |
233 | int err = -EINVAL; | |
234 | ||
235 | spin_lock_irqsave(&mac->lock, flags); | |
236 | switch (mac->txrates.default_rate) { | |
237 | case IEEE80211_CCK_RATE_1MB: | |
238 | data->bitrate.value = 1000000; | |
239 | break; | |
240 | case IEEE80211_CCK_RATE_2MB: | |
241 | data->bitrate.value = 2000000; | |
242 | break; | |
243 | case IEEE80211_CCK_RATE_5MB: | |
244 | data->bitrate.value = 5500000; | |
245 | break; | |
246 | case IEEE80211_CCK_RATE_11MB: | |
247 | data->bitrate.value = 11000000; | |
248 | break; | |
249 | case IEEE80211_OFDM_RATE_6MB: | |
250 | data->bitrate.value = 6000000; | |
251 | break; | |
252 | case IEEE80211_OFDM_RATE_9MB: | |
253 | data->bitrate.value = 9000000; | |
254 | break; | |
255 | case IEEE80211_OFDM_RATE_12MB: | |
256 | data->bitrate.value = 12000000; | |
257 | break; | |
258 | case IEEE80211_OFDM_RATE_18MB: | |
259 | data->bitrate.value = 18000000; | |
260 | break; | |
261 | case IEEE80211_OFDM_RATE_24MB: | |
262 | data->bitrate.value = 24000000; | |
263 | break; | |
264 | case IEEE80211_OFDM_RATE_36MB: | |
265 | data->bitrate.value = 36000000; | |
266 | break; | |
267 | case IEEE80211_OFDM_RATE_48MB: | |
268 | data->bitrate.value = 48000000; | |
269 | break; | |
270 | case IEEE80211_OFDM_RATE_54MB: | |
271 | data->bitrate.value = 54000000; | |
272 | break; | |
273 | default: | |
274 | assert(0); | |
275 | goto out_unlock; | |
276 | } | |
277 | err = 0; | |
278 | out_unlock: | |
279 | spin_unlock_irqrestore(&mac->lock, flags); | |
280 | ||
281 | return err; | |
282 | } | |
283 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_rate); | |
284 | ||
285 | int | |
286 | ieee80211softmac_wx_get_wap(struct net_device *net_dev, | |
287 | struct iw_request_info *info, | |
288 | union iwreq_data *data, | |
289 | char *extra) | |
290 | { | |
291 | struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); | |
292 | int err = 0; | |
293 | unsigned long flags; | |
294 | ||
295 | spin_lock_irqsave(&mac->lock, flags); | |
296 | if (mac->associnfo.bssvalid) | |
297 | memcpy(data->ap_addr.sa_data, mac->associnfo.bssid, ETH_ALEN); | |
298 | else | |
299 | memset(data->ap_addr.sa_data, 0xff, ETH_ALEN); | |
300 | data->ap_addr.sa_family = ARPHRD_ETHER; | |
301 | spin_unlock_irqrestore(&mac->lock, flags); | |
302 | return err; | |
303 | } | |
304 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_wap); | |
305 | ||
306 | int | |
307 | ieee80211softmac_wx_set_wap(struct net_device *net_dev, | |
308 | struct iw_request_info *info, | |
309 | union iwreq_data *data, | |
310 | char *extra) | |
311 | { | |
312 | struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); | |
370121e5 JB |
313 | unsigned long flags; |
314 | ||
315 | /* sanity check */ | |
316 | if (data->ap_addr.sa_family != ARPHRD_ETHER) { | |
317 | return -EINVAL; | |
318 | } | |
319 | ||
320 | spin_lock_irqsave(&mac->lock, flags); | |
818667f7 JB |
321 | if (is_broadcast_ether_addr(data->ap_addr.sa_data)) { |
322 | /* the bssid we have is not to be fixed any longer, | |
323 | * and we should reassociate to the best AP. */ | |
324 | mac->associnfo.bssfixed = 0; | |
325 | /* force reassociation */ | |
326 | mac->associnfo.bssvalid = 0; | |
327 | if (mac->associated) | |
328 | schedule_work(&mac->associnfo.work); | |
329 | } else if (is_zero_ether_addr(data->ap_addr.sa_data)) { | |
330 | /* the bssid we have is no longer fixed */ | |
331 | mac->associnfo.bssfixed = 0; | |
370121e5 JB |
332 | } else { |
333 | if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) { | |
334 | if (mac->associnfo.associating || mac->associated) { | |
335 | /* bssid unchanged and associated or associating - just return */ | |
336 | goto out; | |
337 | } | |
338 | } else { | |
339 | /* copy new value in data->ap_addr.sa_data to bssid */ | |
340 | memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN); | |
818667f7 JB |
341 | } |
342 | /* tell the other code that this bssid should be used no matter what */ | |
343 | mac->associnfo.bssfixed = 1; | |
370121e5 | 344 | /* queue associate if new bssid or (old one again and not associated) */ |
5c4df6da | 345 | schedule_work(&mac->associnfo.work); |
370121e5 JB |
346 | } |
347 | ||
818667f7 | 348 | out: |
370121e5 JB |
349 | spin_unlock_irqrestore(&mac->lock, flags); |
350 | return 0; | |
351 | } | |
352 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_wap); | |
353 | ||
354 | int | |
355 | ieee80211softmac_wx_set_genie(struct net_device *dev, | |
356 | struct iw_request_info *info, | |
357 | union iwreq_data *wrqu, | |
358 | char *extra) | |
359 | { | |
360 | struct ieee80211softmac_device *mac = ieee80211_priv(dev); | |
361 | unsigned long flags; | |
362 | int err = 0; | |
363 | char *buf; | |
364 | int i; | |
365 | ||
366 | spin_lock_irqsave(&mac->lock, flags); | |
367 | /* bleh. shouldn't be locked for that kmalloc... */ | |
368 | ||
369 | if (wrqu->data.length) { | |
370 | if ((wrqu->data.length < 2) || (extra[1]+2 != wrqu->data.length)) { | |
371 | /* this is an IE, so the length must be | |
372 | * correct. Is it possible though that | |
373 | * more than one IE is passed in? | |
374 | */ | |
375 | err = -EINVAL; | |
376 | goto out; | |
377 | } | |
378 | if (mac->wpa.IEbuflen <= wrqu->data.length) { | |
379 | buf = kmalloc(wrqu->data.length, GFP_ATOMIC); | |
380 | if (!buf) { | |
381 | err = -ENOMEM; | |
382 | goto out; | |
383 | } | |
384 | kfree(mac->wpa.IE); | |
385 | mac->wpa.IE = buf; | |
386 | mac->wpa.IEbuflen = wrqu->data.length; | |
387 | } | |
388 | memcpy(mac->wpa.IE, extra, wrqu->data.length); | |
389 | dprintk(KERN_INFO PFX "generic IE set to "); | |
390 | for (i=0;i<wrqu->data.length;i++) | |
7bd6b918 | 391 | dprintk("%.2x", (u8)mac->wpa.IE[i]); |
370121e5 JB |
392 | dprintk("\n"); |
393 | mac->wpa.IElen = wrqu->data.length; | |
394 | } else { | |
395 | kfree(mac->wpa.IE); | |
396 | mac->wpa.IE = NULL; | |
397 | mac->wpa.IElen = 0; | |
398 | mac->wpa.IEbuflen = 0; | |
399 | } | |
400 | ||
401 | out: | |
402 | spin_unlock_irqrestore(&mac->lock, flags); | |
403 | return err; | |
404 | } | |
405 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_genie); | |
406 | ||
407 | int | |
408 | ieee80211softmac_wx_get_genie(struct net_device *dev, | |
409 | struct iw_request_info *info, | |
410 | union iwreq_data *wrqu, | |
411 | char *extra) | |
412 | { | |
413 | struct ieee80211softmac_device *mac = ieee80211_priv(dev); | |
414 | unsigned long flags; | |
415 | int err = 0; | |
416 | int space = wrqu->data.length; | |
417 | ||
418 | spin_lock_irqsave(&mac->lock, flags); | |
419 | ||
420 | wrqu->data.length = 0; | |
421 | ||
422 | if (mac->wpa.IE && mac->wpa.IElen) { | |
423 | wrqu->data.length = mac->wpa.IElen; | |
424 | if (mac->wpa.IElen <= space) | |
425 | memcpy(extra, mac->wpa.IE, mac->wpa.IElen); | |
426 | else | |
427 | err = -E2BIG; | |
428 | } | |
429 | spin_unlock_irqrestore(&mac->lock, flags); | |
430 | return err; | |
431 | } | |
432 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_genie); | |
433 | ||
9a1771e8 JB |
434 | int |
435 | ieee80211softmac_wx_set_mlme(struct net_device *dev, | |
436 | struct iw_request_info *info, | |
437 | union iwreq_data *wrqu, | |
438 | char *extra) | |
439 | { | |
440 | struct ieee80211softmac_device *mac = ieee80211_priv(dev); | |
441 | struct iw_mlme *mlme = (struct iw_mlme *)extra; | |
442 | u16 reason = cpu_to_le16(mlme->reason_code); | |
443 | struct ieee80211softmac_network *net; | |
444 | ||
445 | if (memcmp(mac->associnfo.bssid, mlme->addr.sa_data, ETH_ALEN)) { | |
446 | printk(KERN_DEBUG PFX "wx_set_mlme: requested operation on net we don't use\n"); | |
447 | return -EINVAL; | |
448 | } | |
449 | ||
450 | switch (mlme->cmd) { | |
451 | case IW_MLME_DEAUTH: | |
452 | net = ieee80211softmac_get_network_by_bssid_locked(mac, mlme->addr.sa_data); | |
453 | if (!net) { | |
454 | printk(KERN_DEBUG PFX "wx_set_mlme: we should know the net here...\n"); | |
455 | return -EINVAL; | |
456 | } | |
457 | return ieee80211softmac_deauth_req(mac, net, reason); | |
458 | case IW_MLME_DISASSOC: | |
6d92f83f | 459 | ieee80211softmac_send_disassoc_req(mac, reason); |
9a1771e8 JB |
460 | return 0; |
461 | default: | |
462 | return -EOPNOTSUPP; | |
463 | } | |
464 | } | |
465 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_mlme); |