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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); | |
cb74c432 JJ |
73 | struct ieee80211softmac_network *n; |
74 | struct ieee80211softmac_auth_queue_item *authptr; | |
370121e5 JB |
75 | int length = 0; |
76 | unsigned long flags; | |
cb74c432 JJ |
77 | |
78 | /* Check if we're already associating to this or another network | |
79 | * If it's another network, cancel and start over with our new network | |
80 | * If it's our network, ignore the change, we're already doing it! | |
81 | */ | |
82 | if((sm->associnfo.associating || sm->associated) && | |
83 | (data->essid.flags && data->essid.length && extra)) { | |
84 | /* Get the associating network */ | |
85 | n = ieee80211softmac_get_network_by_bssid(sm, sm->associnfo.bssid); | |
86 | if(n && n->essid.len == (data->essid.length - 1) && | |
87 | !memcmp(n->essid.data, extra, n->essid.len)) { | |
88 | dprintk(KERN_INFO PFX "Already associating or associated to "MAC_FMT"\n", | |
89 | MAC_ARG(sm->associnfo.bssid)); | |
90 | return 0; | |
91 | } else { | |
92 | dprintk(KERN_INFO PFX "Canceling existing associate request!\n"); | |
93 | spin_lock_irqsave(&sm->lock,flags); | |
94 | /* Cancel assoc work */ | |
95 | cancel_delayed_work(&sm->associnfo.work); | |
96 | /* We don't have to do this, but it's a little cleaner */ | |
97 | list_for_each_entry(authptr, &sm->auth_queue, list) | |
98 | cancel_delayed_work(&authptr->work); | |
99 | sm->associnfo.bssvalid = 0; | |
100 | sm->associnfo.bssfixed = 0; | |
101 | spin_unlock_irqrestore(&sm->lock,flags); | |
102 | flush_scheduled_work(); | |
103 | } | |
104 | } | |
105 | ||
106 | ||
370121e5 | 107 | spin_lock_irqsave(&sm->lock, flags); |
cb74c432 | 108 | |
370121e5 | 109 | sm->associnfo.static_essid = 0; |
cb74c432 | 110 | sm->associnfo.assoc_wait = 0; |
370121e5 JB |
111 | |
112 | if (data->essid.flags && data->essid.length && extra /*required?*/) { | |
113 | length = min(data->essid.length - 1, IW_ESSID_MAX_SIZE); | |
114 | if (length) { | |
115 | memcpy(sm->associnfo.req_essid.data, extra, length); | |
116 | sm->associnfo.static_essid = 1; | |
117 | } | |
118 | } | |
370121e5 JB |
119 | |
120 | /* set our requested ESSID length. | |
121 | * If applicable, we have already copied the data in */ | |
122 | sm->associnfo.req_essid.len = length; | |
123 | ||
124 | /* queue lower level code to do work (if necessary) */ | |
5c4df6da | 125 | schedule_work(&sm->associnfo.work); |
370121e5 JB |
126 | |
127 | spin_unlock_irqrestore(&sm->lock, flags); | |
128 | return 0; | |
129 | } | |
130 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_essid); | |
131 | ||
132 | int | |
133 | ieee80211softmac_wx_get_essid(struct net_device *net_dev, | |
134 | struct iw_request_info *info, | |
135 | union iwreq_data *data, | |
136 | char *extra) | |
137 | { | |
138 | struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); | |
139 | unsigned long flags; | |
140 | ||
141 | /* avoid getting inconsistent information */ | |
142 | spin_lock_irqsave(&sm->lock, flags); | |
143 | /* If all fails, return ANY (empty) */ | |
144 | data->essid.length = 0; | |
145 | data->essid.flags = 0; /* active */ | |
146 | ||
147 | /* If we have a statically configured ESSID then return it */ | |
148 | if (sm->associnfo.static_essid) { | |
149 | data->essid.length = sm->associnfo.req_essid.len; | |
150 | data->essid.flags = 1; /* active */ | |
151 | memcpy(extra, sm->associnfo.req_essid.data, sm->associnfo.req_essid.len); | |
152 | } | |
153 | ||
154 | /* If we're associating/associated, return that */ | |
155 | if (sm->associated || sm->associnfo.associating) { | |
156 | data->essid.length = sm->associnfo.associate_essid.len; | |
157 | data->essid.flags = 1; /* active */ | |
158 | memcpy(extra, sm->associnfo.associate_essid.data, sm->associnfo.associate_essid.len); | |
159 | } | |
160 | spin_unlock_irqrestore(&sm->lock, flags); | |
161 | return 0; | |
162 | } | |
163 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_essid); | |
164 | ||
165 | int | |
166 | ieee80211softmac_wx_set_rate(struct net_device *net_dev, | |
167 | struct iw_request_info *info, | |
168 | union iwreq_data *data, | |
169 | char *extra) | |
170 | { | |
171 | struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); | |
172 | struct ieee80211_device *ieee = mac->ieee; | |
173 | unsigned long flags; | |
174 | s32 in_rate = data->bitrate.value; | |
175 | u8 rate; | |
176 | int is_ofdm = 0; | |
177 | int err = -EINVAL; | |
178 | ||
179 | if (in_rate == -1) { | |
2638fed7 DW |
180 | /* FIXME: We don't correctly handle backing down to lower |
181 | rates, so 801.11g devices start off at 11M for now. People | |
182 | can manually change it if they really need to, but 11M is | |
183 | more reliable. Note similar logic in | |
184 | ieee80211softmac_wx_set_rate() */ | |
185 | if (ieee->modulation & IEEE80211_CCK_MODULATION) | |
370121e5 | 186 | in_rate = 11000000; |
2638fed7 DW |
187 | else |
188 | in_rate = 54000000; | |
370121e5 JB |
189 | } |
190 | ||
191 | switch (in_rate) { | |
192 | case 1000000: | |
193 | rate = IEEE80211_CCK_RATE_1MB; | |
194 | break; | |
195 | case 2000000: | |
196 | rate = IEEE80211_CCK_RATE_2MB; | |
197 | break; | |
198 | case 5500000: | |
199 | rate = IEEE80211_CCK_RATE_5MB; | |
200 | break; | |
201 | case 11000000: | |
202 | rate = IEEE80211_CCK_RATE_11MB; | |
203 | break; | |
204 | case 6000000: | |
205 | rate = IEEE80211_OFDM_RATE_6MB; | |
206 | is_ofdm = 1; | |
207 | break; | |
208 | case 9000000: | |
209 | rate = IEEE80211_OFDM_RATE_9MB; | |
210 | is_ofdm = 1; | |
211 | break; | |
212 | case 12000000: | |
213 | rate = IEEE80211_OFDM_RATE_12MB; | |
214 | is_ofdm = 1; | |
215 | break; | |
216 | case 18000000: | |
217 | rate = IEEE80211_OFDM_RATE_18MB; | |
218 | is_ofdm = 1; | |
219 | break; | |
220 | case 24000000: | |
221 | rate = IEEE80211_OFDM_RATE_24MB; | |
222 | is_ofdm = 1; | |
223 | break; | |
224 | case 36000000: | |
225 | rate = IEEE80211_OFDM_RATE_36MB; | |
226 | is_ofdm = 1; | |
227 | break; | |
228 | case 48000000: | |
229 | rate = IEEE80211_OFDM_RATE_48MB; | |
230 | is_ofdm = 1; | |
231 | break; | |
232 | case 54000000: | |
233 | rate = IEEE80211_OFDM_RATE_54MB; | |
234 | is_ofdm = 1; | |
235 | break; | |
236 | default: | |
237 | goto out; | |
238 | } | |
239 | ||
240 | spin_lock_irqsave(&mac->lock, flags); | |
241 | ||
242 | /* Check if correct modulation for this PHY. */ | |
243 | if (is_ofdm && !(ieee->modulation & IEEE80211_OFDM_MODULATION)) | |
244 | goto out_unlock; | |
245 | ||
8462fe3c DD |
246 | mac->txrates.user_rate = rate; |
247 | ieee80211softmac_recalc_txrates(mac); | |
370121e5 JB |
248 | err = 0; |
249 | ||
250 | out_unlock: | |
251 | spin_unlock_irqrestore(&mac->lock, flags); | |
252 | out: | |
253 | return err; | |
254 | } | |
255 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_rate); | |
256 | ||
257 | int | |
258 | ieee80211softmac_wx_get_rate(struct net_device *net_dev, | |
259 | struct iw_request_info *info, | |
260 | union iwreq_data *data, | |
261 | char *extra) | |
262 | { | |
263 | struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); | |
264 | unsigned long flags; | |
265 | int err = -EINVAL; | |
266 | ||
267 | spin_lock_irqsave(&mac->lock, flags); | |
268 | switch (mac->txrates.default_rate) { | |
269 | case IEEE80211_CCK_RATE_1MB: | |
270 | data->bitrate.value = 1000000; | |
271 | break; | |
272 | case IEEE80211_CCK_RATE_2MB: | |
273 | data->bitrate.value = 2000000; | |
274 | break; | |
275 | case IEEE80211_CCK_RATE_5MB: | |
276 | data->bitrate.value = 5500000; | |
277 | break; | |
278 | case IEEE80211_CCK_RATE_11MB: | |
279 | data->bitrate.value = 11000000; | |
280 | break; | |
281 | case IEEE80211_OFDM_RATE_6MB: | |
282 | data->bitrate.value = 6000000; | |
283 | break; | |
284 | case IEEE80211_OFDM_RATE_9MB: | |
285 | data->bitrate.value = 9000000; | |
286 | break; | |
287 | case IEEE80211_OFDM_RATE_12MB: | |
288 | data->bitrate.value = 12000000; | |
289 | break; | |
290 | case IEEE80211_OFDM_RATE_18MB: | |
291 | data->bitrate.value = 18000000; | |
292 | break; | |
293 | case IEEE80211_OFDM_RATE_24MB: | |
294 | data->bitrate.value = 24000000; | |
295 | break; | |
296 | case IEEE80211_OFDM_RATE_36MB: | |
297 | data->bitrate.value = 36000000; | |
298 | break; | |
299 | case IEEE80211_OFDM_RATE_48MB: | |
300 | data->bitrate.value = 48000000; | |
301 | break; | |
302 | case IEEE80211_OFDM_RATE_54MB: | |
303 | data->bitrate.value = 54000000; | |
304 | break; | |
305 | default: | |
306 | assert(0); | |
307 | goto out_unlock; | |
308 | } | |
309 | err = 0; | |
310 | out_unlock: | |
311 | spin_unlock_irqrestore(&mac->lock, flags); | |
312 | ||
313 | return err; | |
314 | } | |
315 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_rate); | |
316 | ||
317 | int | |
318 | ieee80211softmac_wx_get_wap(struct net_device *net_dev, | |
319 | struct iw_request_info *info, | |
320 | union iwreq_data *data, | |
321 | char *extra) | |
322 | { | |
323 | struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); | |
324 | int err = 0; | |
325 | unsigned long flags; | |
326 | ||
327 | spin_lock_irqsave(&mac->lock, flags); | |
328 | if (mac->associnfo.bssvalid) | |
329 | memcpy(data->ap_addr.sa_data, mac->associnfo.bssid, ETH_ALEN); | |
330 | else | |
331 | memset(data->ap_addr.sa_data, 0xff, ETH_ALEN); | |
332 | data->ap_addr.sa_family = ARPHRD_ETHER; | |
333 | spin_unlock_irqrestore(&mac->lock, flags); | |
334 | return err; | |
335 | } | |
336 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_wap); | |
337 | ||
338 | int | |
339 | ieee80211softmac_wx_set_wap(struct net_device *net_dev, | |
340 | struct iw_request_info *info, | |
341 | union iwreq_data *data, | |
342 | char *extra) | |
343 | { | |
344 | struct ieee80211softmac_device *mac = ieee80211_priv(net_dev); | |
370121e5 JB |
345 | unsigned long flags; |
346 | ||
347 | /* sanity check */ | |
348 | if (data->ap_addr.sa_family != ARPHRD_ETHER) { | |
349 | return -EINVAL; | |
350 | } | |
351 | ||
352 | spin_lock_irqsave(&mac->lock, flags); | |
818667f7 JB |
353 | if (is_broadcast_ether_addr(data->ap_addr.sa_data)) { |
354 | /* the bssid we have is not to be fixed any longer, | |
355 | * and we should reassociate to the best AP. */ | |
356 | mac->associnfo.bssfixed = 0; | |
357 | /* force reassociation */ | |
358 | mac->associnfo.bssvalid = 0; | |
359 | if (mac->associated) | |
360 | schedule_work(&mac->associnfo.work); | |
361 | } else if (is_zero_ether_addr(data->ap_addr.sa_data)) { | |
362 | /* the bssid we have is no longer fixed */ | |
363 | mac->associnfo.bssfixed = 0; | |
370121e5 JB |
364 | } else { |
365 | if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) { | |
366 | if (mac->associnfo.associating || mac->associated) { | |
367 | /* bssid unchanged and associated or associating - just return */ | |
368 | goto out; | |
369 | } | |
370 | } else { | |
371 | /* copy new value in data->ap_addr.sa_data to bssid */ | |
372 | memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN); | |
818667f7 JB |
373 | } |
374 | /* tell the other code that this bssid should be used no matter what */ | |
375 | mac->associnfo.bssfixed = 1; | |
370121e5 | 376 | /* queue associate if new bssid or (old one again and not associated) */ |
5c4df6da | 377 | schedule_work(&mac->associnfo.work); |
370121e5 JB |
378 | } |
379 | ||
818667f7 | 380 | out: |
370121e5 JB |
381 | spin_unlock_irqrestore(&mac->lock, flags); |
382 | return 0; | |
383 | } | |
384 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_wap); | |
385 | ||
386 | int | |
387 | ieee80211softmac_wx_set_genie(struct net_device *dev, | |
388 | struct iw_request_info *info, | |
389 | union iwreq_data *wrqu, | |
390 | char *extra) | |
391 | { | |
392 | struct ieee80211softmac_device *mac = ieee80211_priv(dev); | |
393 | unsigned long flags; | |
394 | int err = 0; | |
395 | char *buf; | |
396 | int i; | |
397 | ||
398 | spin_lock_irqsave(&mac->lock, flags); | |
399 | /* bleh. shouldn't be locked for that kmalloc... */ | |
400 | ||
401 | if (wrqu->data.length) { | |
402 | if ((wrqu->data.length < 2) || (extra[1]+2 != wrqu->data.length)) { | |
403 | /* this is an IE, so the length must be | |
404 | * correct. Is it possible though that | |
405 | * more than one IE is passed in? | |
406 | */ | |
407 | err = -EINVAL; | |
408 | goto out; | |
409 | } | |
410 | if (mac->wpa.IEbuflen <= wrqu->data.length) { | |
411 | buf = kmalloc(wrqu->data.length, GFP_ATOMIC); | |
412 | if (!buf) { | |
413 | err = -ENOMEM; | |
414 | goto out; | |
415 | } | |
416 | kfree(mac->wpa.IE); | |
417 | mac->wpa.IE = buf; | |
418 | mac->wpa.IEbuflen = wrqu->data.length; | |
419 | } | |
420 | memcpy(mac->wpa.IE, extra, wrqu->data.length); | |
421 | dprintk(KERN_INFO PFX "generic IE set to "); | |
422 | for (i=0;i<wrqu->data.length;i++) | |
7bd6b918 | 423 | dprintk("%.2x", (u8)mac->wpa.IE[i]); |
370121e5 JB |
424 | dprintk("\n"); |
425 | mac->wpa.IElen = wrqu->data.length; | |
426 | } else { | |
427 | kfree(mac->wpa.IE); | |
428 | mac->wpa.IE = NULL; | |
429 | mac->wpa.IElen = 0; | |
430 | mac->wpa.IEbuflen = 0; | |
431 | } | |
432 | ||
433 | out: | |
434 | spin_unlock_irqrestore(&mac->lock, flags); | |
435 | return err; | |
436 | } | |
437 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_genie); | |
438 | ||
439 | int | |
440 | ieee80211softmac_wx_get_genie(struct net_device *dev, | |
441 | struct iw_request_info *info, | |
442 | union iwreq_data *wrqu, | |
443 | char *extra) | |
444 | { | |
445 | struct ieee80211softmac_device *mac = ieee80211_priv(dev); | |
446 | unsigned long flags; | |
447 | int err = 0; | |
448 | int space = wrqu->data.length; | |
449 | ||
450 | spin_lock_irqsave(&mac->lock, flags); | |
451 | ||
452 | wrqu->data.length = 0; | |
453 | ||
454 | if (mac->wpa.IE && mac->wpa.IElen) { | |
455 | wrqu->data.length = mac->wpa.IElen; | |
456 | if (mac->wpa.IElen <= space) | |
457 | memcpy(extra, mac->wpa.IE, mac->wpa.IElen); | |
458 | else | |
459 | err = -E2BIG; | |
460 | } | |
461 | spin_unlock_irqrestore(&mac->lock, flags); | |
462 | return err; | |
463 | } | |
464 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_genie); | |
465 | ||
9a1771e8 JB |
466 | int |
467 | ieee80211softmac_wx_set_mlme(struct net_device *dev, | |
468 | struct iw_request_info *info, | |
469 | union iwreq_data *wrqu, | |
470 | char *extra) | |
471 | { | |
472 | struct ieee80211softmac_device *mac = ieee80211_priv(dev); | |
473 | struct iw_mlme *mlme = (struct iw_mlme *)extra; | |
474 | u16 reason = cpu_to_le16(mlme->reason_code); | |
475 | struct ieee80211softmac_network *net; | |
476 | ||
477 | if (memcmp(mac->associnfo.bssid, mlme->addr.sa_data, ETH_ALEN)) { | |
478 | printk(KERN_DEBUG PFX "wx_set_mlme: requested operation on net we don't use\n"); | |
479 | return -EINVAL; | |
480 | } | |
481 | ||
482 | switch (mlme->cmd) { | |
483 | case IW_MLME_DEAUTH: | |
484 | net = ieee80211softmac_get_network_by_bssid_locked(mac, mlme->addr.sa_data); | |
485 | if (!net) { | |
486 | printk(KERN_DEBUG PFX "wx_set_mlme: we should know the net here...\n"); | |
487 | return -EINVAL; | |
488 | } | |
489 | return ieee80211softmac_deauth_req(mac, net, reason); | |
490 | case IW_MLME_DISASSOC: | |
6d92f83f | 491 | ieee80211softmac_send_disassoc_req(mac, reason); |
9a1771e8 JB |
492 | return 0; |
493 | default: | |
494 | return -EOPNOTSUPP; | |
495 | } | |
496 | } | |
497 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_mlme); |