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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> | |
30 | ||
31 | ||
32 | int | |
33 | ieee80211softmac_wx_trigger_scan(struct net_device *net_dev, | |
34 | struct iw_request_info *info, | |
35 | union iwreq_data *data, | |
36 | char *extra) | |
37 | { | |
38 | struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); | |
39 | return ieee80211softmac_start_scan(sm); | |
40 | } | |
41 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_trigger_scan); | |
42 | ||
43 | ||
ba2f8c18 | 44 | /* if we're still scanning, return -EAGAIN so that userspace tools |
45 | * can get the complete scan results, otherwise return 0. */ | |
370121e5 JB |
46 | int |
47 | ieee80211softmac_wx_get_scan_results(struct net_device *net_dev, | |
48 | struct iw_request_info *info, | |
49 | union iwreq_data *data, | |
50 | char *extra) | |
51 | { | |
ba2f8c18 | 52 | unsigned long flags; |
370121e5 | 53 | struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); |
ba2f8c18 | 54 | |
55 | spin_lock_irqsave(&sm->lock, flags); | |
56 | if (sm->scanning) { | |
57 | spin_unlock_irqrestore(&sm->lock, flags); | |
58 | return -EAGAIN; | |
59 | } | |
60 | spin_unlock_irqrestore(&sm->lock, flags); | |
370121e5 JB |
61 | return ieee80211_wx_get_scan(sm->ieee, info, data, extra); |
62 | } | |
63 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_scan_results); | |
64 | ||
65 | int | |
66 | ieee80211softmac_wx_set_essid(struct net_device *net_dev, | |
67 | struct iw_request_info *info, | |
68 | union iwreq_data *data, | |
69 | char *extra) | |
70 | { | |
71 | struct ieee80211softmac_device *sm = ieee80211_priv(net_dev); | |
72 | int length = 0; | |
73 | unsigned long flags; | |
74 | ||
75 | spin_lock_irqsave(&sm->lock, flags); | |
76 | ||
77 | sm->associnfo.static_essid = 0; | |
78 | ||
79 | if (data->essid.flags && data->essid.length && extra /*required?*/) { | |
80 | length = min(data->essid.length - 1, IW_ESSID_MAX_SIZE); | |
81 | if (length) { | |
82 | memcpy(sm->associnfo.req_essid.data, extra, length); | |
83 | sm->associnfo.static_essid = 1; | |
84 | } | |
85 | } | |
86 | sm->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT; | |
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 | ||
214 | mac->txrates.default_rate = rate; | |
215 | mac->txrates.default_fallback = lower_rate(mac, rate); | |
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); | |
313 | static const unsigned char any[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; | |
314 | static const unsigned char off[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; | |
315 | unsigned long flags; | |
316 | ||
317 | /* sanity check */ | |
318 | if (data->ap_addr.sa_family != ARPHRD_ETHER) { | |
319 | return -EINVAL; | |
320 | } | |
321 | ||
322 | spin_lock_irqsave(&mac->lock, flags); | |
323 | if (!memcmp(any, data->ap_addr.sa_data, ETH_ALEN) || | |
324 | !memcmp(off, data->ap_addr.sa_data, ETH_ALEN)) { | |
5c4df6da | 325 | schedule_work(&mac->associnfo.work); |
370121e5 JB |
326 | goto out; |
327 | } else { | |
328 | if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) { | |
329 | if (mac->associnfo.associating || mac->associated) { | |
330 | /* bssid unchanged and associated or associating - just return */ | |
331 | goto out; | |
332 | } | |
333 | } else { | |
334 | /* copy new value in data->ap_addr.sa_data to bssid */ | |
335 | memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN); | |
336 | } | |
337 | /* queue associate if new bssid or (old one again and not associated) */ | |
5c4df6da | 338 | schedule_work(&mac->associnfo.work); |
370121e5 JB |
339 | } |
340 | ||
341 | out: | |
342 | spin_unlock_irqrestore(&mac->lock, flags); | |
343 | return 0; | |
344 | } | |
345 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_wap); | |
346 | ||
347 | int | |
348 | ieee80211softmac_wx_set_genie(struct net_device *dev, | |
349 | struct iw_request_info *info, | |
350 | union iwreq_data *wrqu, | |
351 | char *extra) | |
352 | { | |
353 | struct ieee80211softmac_device *mac = ieee80211_priv(dev); | |
354 | unsigned long flags; | |
355 | int err = 0; | |
356 | char *buf; | |
357 | int i; | |
358 | ||
359 | spin_lock_irqsave(&mac->lock, flags); | |
360 | /* bleh. shouldn't be locked for that kmalloc... */ | |
361 | ||
362 | if (wrqu->data.length) { | |
363 | if ((wrqu->data.length < 2) || (extra[1]+2 != wrqu->data.length)) { | |
364 | /* this is an IE, so the length must be | |
365 | * correct. Is it possible though that | |
366 | * more than one IE is passed in? | |
367 | */ | |
368 | err = -EINVAL; | |
369 | goto out; | |
370 | } | |
371 | if (mac->wpa.IEbuflen <= wrqu->data.length) { | |
372 | buf = kmalloc(wrqu->data.length, GFP_ATOMIC); | |
373 | if (!buf) { | |
374 | err = -ENOMEM; | |
375 | goto out; | |
376 | } | |
377 | kfree(mac->wpa.IE); | |
378 | mac->wpa.IE = buf; | |
379 | mac->wpa.IEbuflen = wrqu->data.length; | |
380 | } | |
381 | memcpy(mac->wpa.IE, extra, wrqu->data.length); | |
382 | dprintk(KERN_INFO PFX "generic IE set to "); | |
383 | for (i=0;i<wrqu->data.length;i++) | |
384 | dprintk("%.2x", mac->wpa.IE[i]); | |
385 | dprintk("\n"); | |
386 | mac->wpa.IElen = wrqu->data.length; | |
387 | } else { | |
388 | kfree(mac->wpa.IE); | |
389 | mac->wpa.IE = NULL; | |
390 | mac->wpa.IElen = 0; | |
391 | mac->wpa.IEbuflen = 0; | |
392 | } | |
393 | ||
394 | out: | |
395 | spin_unlock_irqrestore(&mac->lock, flags); | |
396 | return err; | |
397 | } | |
398 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_genie); | |
399 | ||
400 | int | |
401 | ieee80211softmac_wx_get_genie(struct net_device *dev, | |
402 | struct iw_request_info *info, | |
403 | union iwreq_data *wrqu, | |
404 | char *extra) | |
405 | { | |
406 | struct ieee80211softmac_device *mac = ieee80211_priv(dev); | |
407 | unsigned long flags; | |
408 | int err = 0; | |
409 | int space = wrqu->data.length; | |
410 | ||
411 | spin_lock_irqsave(&mac->lock, flags); | |
412 | ||
413 | wrqu->data.length = 0; | |
414 | ||
415 | if (mac->wpa.IE && mac->wpa.IElen) { | |
416 | wrqu->data.length = mac->wpa.IElen; | |
417 | if (mac->wpa.IElen <= space) | |
418 | memcpy(extra, mac->wpa.IE, mac->wpa.IElen); | |
419 | else | |
420 | err = -E2BIG; | |
421 | } | |
422 | spin_unlock_irqrestore(&mac->lock, flags); | |
423 | return err; | |
424 | } | |
425 | EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_genie); | |
426 |