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CodingStyle: add information about trailing whitespace
[linux-2.6/libata-dev.git] / net / mac80211 / ieee80211_ioctl.c
blob5918dd079e12c8442de53ef59ccd6fdfc9257bcd
1 /*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005-2006, Devicescape Software, Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/netdevice.h>
13 #include <linux/types.h>
14 #include <linux/slab.h>
15 #include <linux/skbuff.h>
16 #include <linux/etherdevice.h>
17 #include <linux/if_arp.h>
18 #include <linux/wireless.h>
19 #include <net/iw_handler.h>
20 #include <asm/uaccess.h>
21
22 #include <net/mac80211.h>
23 #include "ieee80211_i.h"
24 #include "hostapd_ioctl.h"
25 #include "ieee80211_rate.h"
26 #include "wpa.h"
27 #include "aes_ccm.h"
28 #include "debugfs_key.h"
29
30 static int ieee80211_regdom = 0x10; /* FCC */
31 module_param(ieee80211_regdom, int, 0444);
32 MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK");
33
34 /*
35 * If firmware is upgraded by the vendor, additional channels can be used based
36 * on the new Japanese regulatory rules. This is indicated by setting
37 * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel
38 * module.
39 */
40 static int ieee80211_japan_5ghz /* = 0 */;
41 module_param(ieee80211_japan_5ghz, int, 0444);
42 MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz");
43
44 static void ieee80211_set_hw_encryption(struct net_device *dev,
45 struct sta_info *sta, u8 addr[ETH_ALEN],
46 struct ieee80211_key *key)
47 {
48 struct ieee80211_key_conf *keyconf = NULL;
49 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
50
51 /* default to sw encryption; this will be cleared by low-level
52 * driver if the hw supports requested encryption */
53 if (key)
54 key->force_sw_encrypt = 1;
55
56 if (key && local->ops->set_key &&
57 (keyconf = ieee80211_key_data2conf(local, key))) {
58 if (local->ops->set_key(local_to_hw(local), SET_KEY, addr,
59 keyconf, sta ? sta->aid : 0)) {
60 key->force_sw_encrypt = 1;
61 key->hw_key_idx = HW_KEY_IDX_INVALID;
62 } else {
63 key->force_sw_encrypt =
64 !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
65 key->hw_key_idx =
66 keyconf->hw_key_idx;
67
68 }
69 }
70 kfree(keyconf);
71 }
72
73
74 static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
75 int idx, int alg, int set_tx_key,
76 const u8 *_key, size_t key_len)
77 {
78 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
79 int ret = 0;
80 struct sta_info *sta;
81 struct ieee80211_key *key, *old_key;
82 int try_hwaccel = 1;
83 struct ieee80211_key_conf *keyconf;
84 struct ieee80211_sub_if_data *sdata;
85
86 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
87
88 if (is_broadcast_ether_addr(sta_addr)) {
89 sta = NULL;
90 if (idx >= NUM_DEFAULT_KEYS) {
91 printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
92 dev->name, idx);
93 return -EINVAL;
94 }
95 key = sdata->keys[idx];
96
97 /* TODO: consider adding hwaccel support for these; at least
98 * Atheros key cache should be able to handle this since AP is
99 * only transmitting frames with default keys. */
100 /* FIX: hw key cache can be used when only one virtual
101 * STA is associated with each AP. If more than one STA
102 * is associated to the same AP, software encryption
103 * must be used. This should be done automatically
104 * based on configured station devices. For the time
105 * being, this can be only set at compile time. */
106 } else {
107 set_tx_key = 0;
108 if (idx != 0) {
109 printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
110 "individual key\n", dev->name);
111 return -EINVAL;
112 }
113
114 sta = sta_info_get(local, sta_addr);
115 if (!sta) {
116 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
117 printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
118 MAC_FMT "\n",
119 dev->name, MAC_ARG(sta_addr));
120 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
121
122 return -ENOENT;
123 }
124
125 key = sta->key;
126 }
127
128 /* FIX:
129 * Cannot configure default hwaccel keys with WEP algorithm, if
130 * any of the virtual interfaces is using static WEP
131 * configuration because hwaccel would otherwise try to decrypt
132 * these frames.
133 *
134 * For now, just disable WEP hwaccel for broadcast when there is
135 * possibility of conflict with default keys. This can maybe later be
136 * optimized by using non-default keys (at least with Atheros ar521x).
137 */
138 if (!sta && alg == ALG_WEP && !local->default_wep_only &&
139 sdata->type != IEEE80211_IF_TYPE_IBSS &&
140 sdata->type != IEEE80211_IF_TYPE_AP) {
141 try_hwaccel = 0;
142 }
143
144 if (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) {
145 /* Software encryption cannot be used with devices that hide
146 * encryption from the host system, so always try to use
147 * hardware acceleration with such devices. */
148 try_hwaccel = 1;
149 }
150
151 if ((local->hw.flags & IEEE80211_HW_NO_TKIP_WMM_HWACCEL) &&
152 alg == ALG_TKIP) {
153 if (sta && (sta->flags & WLAN_STA_WME)) {
154 /* Hardware does not support hwaccel with TKIP when using WMM.
155 */
156 try_hwaccel = 0;
157 }
158 else if (sdata->type == IEEE80211_IF_TYPE_STA) {
159 sta = sta_info_get(local, sdata->u.sta.bssid);
160 if (sta) {
161 if (sta->flags & WLAN_STA_WME) {
162 try_hwaccel = 0;
163 }
164 sta_info_put(sta);
165 sta = NULL;
166 }
167 }
168 }
169
170 if (alg == ALG_NONE) {
171 keyconf = NULL;
172 if (try_hwaccel && key &&
173 key->hw_key_idx != HW_KEY_IDX_INVALID &&
174 local->ops->set_key &&
175 (keyconf = ieee80211_key_data2conf(local, key)) != NULL &&
176 local->ops->set_key(local_to_hw(local), DISABLE_KEY,
177 sta_addr, keyconf, sta ? sta->aid : 0)) {
178 printk(KERN_DEBUG "%s: set_encrypt - low-level disable"
179 " failed\n", dev->name);
180 ret = -EINVAL;
181 }
182 kfree(keyconf);
183
184 if (set_tx_key || sdata->default_key == key) {
185 ieee80211_debugfs_key_remove_default(sdata);
186 sdata->default_key = NULL;
187 }
188 ieee80211_debugfs_key_remove(key);
189 if (sta)
190 sta->key = NULL;
191 else
192 sdata->keys[idx] = NULL;
193 ieee80211_key_free(key);
194 key = NULL;
195 } else {
196 old_key = key;
197 key = ieee80211_key_alloc(sta ? NULL : sdata, idx, key_len,
198 GFP_KERNEL);
199 if (!key) {
200 ret = -ENOMEM;
201 goto err_out;
202 }
203
204 /* default to sw encryption; low-level driver sets these if the
205 * requested encryption is supported */
206 key->hw_key_idx = HW_KEY_IDX_INVALID;
207 key->force_sw_encrypt = 1;
208
209 key->alg = alg;
210 key->keyidx = idx;
211 key->keylen = key_len;
212 memcpy(key->key, _key, key_len);
213 if (set_tx_key)
214 key->default_tx_key = 1;
215
216 if (alg == ALG_CCMP) {
217 /* Initialize AES key state here as an optimization
218 * so that it does not need to be initialized for every
219 * packet. */
220 key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(
221 key->key);
222 if (!key->u.ccmp.tfm) {
223 ret = -ENOMEM;
224 goto err_free;
225 }
226 }
227
228 if (set_tx_key || sdata->default_key == old_key) {
229 ieee80211_debugfs_key_remove_default(sdata);
230 sdata->default_key = NULL;
231 }
232 ieee80211_debugfs_key_remove(old_key);
233 if (sta)
234 sta->key = key;
235 else
236 sdata->keys[idx] = key;
237 ieee80211_key_free(old_key);
238 ieee80211_debugfs_key_add(local, key);
239 if (sta)
240 ieee80211_debugfs_key_sta_link(key, sta);
241
242 if (try_hwaccel &&
243 (alg == ALG_WEP || alg == ALG_TKIP || alg == ALG_CCMP))
244 ieee80211_set_hw_encryption(dev, sta, sta_addr, key);
245 }
246
247 if (set_tx_key || (!sta && !sdata->default_key && key)) {
248 sdata->default_key = key;
249 if (key)
250 ieee80211_debugfs_key_add_default(sdata);
251
252 if (local->ops->set_key_idx &&
253 local->ops->set_key_idx(local_to_hw(local), idx))
254 printk(KERN_DEBUG "%s: failed to set TX key idx for "
255 "low-level driver\n", dev->name);
256 }
257
258 if (sta)
259 sta_info_put(sta);
260
261 return 0;
262
263 err_free:
264 ieee80211_key_free(key);
265 err_out:
266 if (sta)
267 sta_info_put(sta);
268 return ret;
269 }
270
271 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
272 struct iw_request_info *info,
273 struct iw_point *data, char *extra)
274 {
275 struct ieee80211_sub_if_data *sdata;
276 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
277
278 if (local->user_space_mlme)
279 return -EOPNOTSUPP;
280
281 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
282 if (sdata->type == IEEE80211_IF_TYPE_STA ||
283 sdata->type == IEEE80211_IF_TYPE_IBSS) {
284 int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
285 if (ret)
286 return ret;
287 sdata->u.sta.auto_bssid_sel = 0;
288 ieee80211_sta_req_auth(dev, &sdata->u.sta);
289 return 0;
290 }
291
292 if (sdata->type == IEEE80211_IF_TYPE_AP) {
293 kfree(sdata->u.ap.generic_elem);
294 sdata->u.ap.generic_elem = kmalloc(data->length, GFP_KERNEL);
295 if (!sdata->u.ap.generic_elem)
296 return -ENOMEM;
297 memcpy(sdata->u.ap.generic_elem, extra, data->length);
298 sdata->u.ap.generic_elem_len = data->length;
299 return ieee80211_if_config(dev);
300 }
301 return -EOPNOTSUPP;
302 }
303
304 static int ieee80211_ioctl_set_radio_enabled(struct net_device *dev,
305 int val)
306 {
307 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
308 struct ieee80211_conf *conf = &local->hw.conf;
309
310 conf->radio_enabled = val;
311 return ieee80211_hw_config(wdev_priv(dev->ieee80211_ptr));
312 }
313
314 static int ieee80211_ioctl_giwname(struct net_device *dev,
315 struct iw_request_info *info,
316 char *name, char *extra)
317 {
318 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
319
320 switch (local->hw.conf.phymode) {
321 case MODE_IEEE80211A:
322 strcpy(name, "IEEE 802.11a");
323 break;
324 case MODE_IEEE80211B:
325 strcpy(name, "IEEE 802.11b");
326 break;
327 case MODE_IEEE80211G:
328 strcpy(name, "IEEE 802.11g");
329 break;
330 case MODE_ATHEROS_TURBO:
331 strcpy(name, "5GHz Turbo");
332 break;
333 default:
334 strcpy(name, "IEEE 802.11");
335 break;
336 }
337
338 return 0;
339 }
340
341
342 static int ieee80211_ioctl_giwrange(struct net_device *dev,
343 struct iw_request_info *info,
344 struct iw_point *data, char *extra)
345 {
346 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
347 struct iw_range *range = (struct iw_range *) extra;
348 struct ieee80211_hw_mode *mode = NULL;
349 int c = 0;
350
351 data->length = sizeof(struct iw_range);
352 memset(range, 0, sizeof(struct iw_range));
353
354 range->we_version_compiled = WIRELESS_EXT;
355 range->we_version_source = 21;
356 range->retry_capa = IW_RETRY_LIMIT;
357 range->retry_flags = IW_RETRY_LIMIT;
358 range->min_retry = 0;
359 range->max_retry = 255;
360 range->min_rts = 0;
361 range->max_rts = 2347;
362 range->min_frag = 256;
363 range->max_frag = 2346;
364
365 range->encoding_size[0] = 5;
366 range->encoding_size[1] = 13;
367 range->num_encoding_sizes = 2;
368 range->max_encoding_tokens = NUM_DEFAULT_KEYS;
369
370 range->max_qual.qual = local->hw.max_signal;
371 range->max_qual.level = local->hw.max_rssi;
372 range->max_qual.noise = local->hw.max_noise;
373 range->max_qual.updated = local->wstats_flags;
374
375 range->avg_qual.qual = local->hw.max_signal/2;
376 range->avg_qual.level = 0;
377 range->avg_qual.noise = 0;
378 range->avg_qual.updated = local->wstats_flags;
379
380 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
381 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
382
383 list_for_each_entry(mode, &local->modes_list, list) {
384 int i = 0;
385
386 if (!(local->enabled_modes & (1 << mode->mode)) ||
387 (local->hw_modes & local->enabled_modes &
388 (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
389 continue;
390
391 while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) {
392 struct ieee80211_channel *chan = &mode->channels[i];
393
394 if (chan->flag & IEEE80211_CHAN_W_SCAN) {
395 range->freq[c].i = chan->chan;
396 range->freq[c].m = chan->freq * 100000;
397 range->freq[c].e = 1;
398 c++;
399 }
400 i++;
401 }
402 }
403 range->num_channels = c;
404 range->num_frequency = c;
405
406 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
407 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
408 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
409 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
410
411 return 0;
412 }
413
414
415 struct ieee80211_channel_range {
416 short start_freq;
417 short end_freq;
418 unsigned char power_level;
419 unsigned char antenna_max;
420 };
421
422 static const struct ieee80211_channel_range ieee80211_fcc_channels[] = {
423 { 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */,
424 { 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */,
425 { 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */,
426 { 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */,
427 { 0 }
428 };
429
430 static const struct ieee80211_channel_range ieee80211_mkk_channels[] = {
431 { 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */,
432 { 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */,
433 { 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */,
434 { 0 }
435 };
436
437
438 static const struct ieee80211_channel_range *channel_range =
439 ieee80211_fcc_channels;
440
441
442 static void ieee80211_unmask_channel(struct net_device *dev, int mode,
443 struct ieee80211_channel *chan)
444 {
445 int i;
446
447 chan->flag = 0;
448
449 if (ieee80211_regdom == 64 &&
450 (mode == MODE_ATHEROS_TURBO || mode == MODE_ATHEROS_TURBOG)) {
451 /* Do not allow Turbo modes in Japan. */
452 return;
453 }
454
455 for (i = 0; channel_range[i].start_freq; i++) {
456 const struct ieee80211_channel_range *r = &channel_range[i];
457 if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) {
458 if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz &&
459 chan->freq >= 5260 && chan->freq <= 5320) {
460 /*
461 * Skip new channels in Japan since the
462 * firmware was not marked having been upgraded
463 * by the vendor.
464 */
465 continue;
466 }
467
468 if (ieee80211_regdom == 0x10 &&
469 (chan->freq == 5190 || chan->freq == 5210 ||
470 chan->freq == 5230)) {
471 /* Skip MKK channels when in FCC domain. */
472 continue;
473 }
474
475 chan->flag |= IEEE80211_CHAN_W_SCAN |
476 IEEE80211_CHAN_W_ACTIVE_SCAN |
477 IEEE80211_CHAN_W_IBSS;
478 chan->power_level = r->power_level;
479 chan->antenna_max = r->antenna_max;
480
481 if (ieee80211_regdom == 64 &&
482 (chan->freq == 5170 || chan->freq == 5190 ||
483 chan->freq == 5210 || chan->freq == 5230)) {
484 /*
485 * New regulatory rules in Japan have backwards
486 * compatibility with old channels in 5.15-5.25
487 * GHz band, but the station is not allowed to
488 * use active scan on these old channels.
489 */
490 chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN;
491 }
492
493 if (ieee80211_regdom == 64 &&
494 (chan->freq == 5260 || chan->freq == 5280 ||
495 chan->freq == 5300 || chan->freq == 5320)) {
496 /*
497 * IBSS is not allowed on 5.25-5.35 GHz band
498 * due to radar detection requirements.
499 */
500 chan->flag &= ~IEEE80211_CHAN_W_IBSS;
501 }
502
503 break;
504 }
505 }
506 }
507
508
509 static int ieee80211_unmask_channels(struct net_device *dev)
510 {
511 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
512 struct ieee80211_hw_mode *mode;
513 int c;
514
515 list_for_each_entry(mode, &local->modes_list, list) {
516 for (c = 0; c < mode->num_channels; c++) {
517 ieee80211_unmask_channel(dev, mode->mode,
518 &mode->channels[c]);
519 }
520 }
521 return 0;
522 }
523
524
525 int ieee80211_init_client(struct net_device *dev)
526 {
527 if (ieee80211_regdom == 0x40)
528 channel_range = ieee80211_mkk_channels;
529 ieee80211_unmask_channels(dev);
530 return 0;
531 }
532
533
534 static int ieee80211_ioctl_siwmode(struct net_device *dev,
535 struct iw_request_info *info,
536 __u32 *mode, char *extra)
537 {
538 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
539 int type;
540
541 if (sdata->type == IEEE80211_IF_TYPE_VLAN)
542 return -EOPNOTSUPP;
543
544 switch (*mode) {
545 case IW_MODE_INFRA:
546 type = IEEE80211_IF_TYPE_STA;
547 break;
548 case IW_MODE_ADHOC:
549 type = IEEE80211_IF_TYPE_IBSS;
550 break;
551 case IW_MODE_MONITOR:
552 type = IEEE80211_IF_TYPE_MNTR;
553 break;
554 default:
555 return -EINVAL;
556 }
557
558 if (type == sdata->type)
559 return 0;
560 if (netif_running(dev))
561 return -EBUSY;
562
563 ieee80211_if_reinit(dev);
564 ieee80211_if_set_type(dev, type);
565
566 return 0;
567 }
568
569
570 static int ieee80211_ioctl_giwmode(struct net_device *dev,
571 struct iw_request_info *info,
572 __u32 *mode, char *extra)
573 {
574 struct ieee80211_sub_if_data *sdata;
575
576 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
577 switch (sdata->type) {
578 case IEEE80211_IF_TYPE_AP:
579 *mode = IW_MODE_MASTER;
580 break;
581 case IEEE80211_IF_TYPE_STA:
582 *mode = IW_MODE_INFRA;
583 break;
584 case IEEE80211_IF_TYPE_IBSS:
585 *mode = IW_MODE_ADHOC;
586 break;
587 case IEEE80211_IF_TYPE_MNTR:
588 *mode = IW_MODE_MONITOR;
589 break;
590 case IEEE80211_IF_TYPE_WDS:
591 *mode = IW_MODE_REPEAT;
592 break;
593 case IEEE80211_IF_TYPE_VLAN:
594 *mode = IW_MODE_SECOND; /* FIXME */
595 break;
596 default:
597 *mode = IW_MODE_AUTO;
598 break;
599 }
600 return 0;
601 }
602
603 int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
604 {
605 struct ieee80211_hw_mode *mode;
606 int c, set = 0;
607 int ret = -EINVAL;
608
609 list_for_each_entry(mode, &local->modes_list, list) {
610 if (!(local->enabled_modes & (1 << mode->mode)))
611 continue;
612 for (c = 0; c < mode->num_channels; c++) {
613 struct ieee80211_channel *chan = &mode->channels[c];
614 if (chan->flag & IEEE80211_CHAN_W_SCAN &&
615 ((chan->chan == channel) || (chan->freq == freq))) {
616 /* Use next_mode as the mode preference to
617 * resolve non-unique channel numbers. */
618 if (set && mode->mode != local->next_mode)
619 continue;
620
621 local->oper_channel = chan;
622 local->oper_hw_mode = mode;
623 set++;
624 }
625 }
626 }
627
628 if (set) {
629 if (local->sta_scanning)
630 ret = 0;
631 else
632 ret = ieee80211_hw_config(local);
633
634 rate_control_clear(local);
635 }
636
637 return ret;
638 }
639
640 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
641 struct iw_request_info *info,
642 struct iw_freq *freq, char *extra)
643 {
644 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
645 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
646
647 if (sdata->type == IEEE80211_IF_TYPE_STA)
648 sdata->u.sta.auto_channel_sel = 0;
649
650 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
651 if (freq->e == 0) {
652 if (freq->m < 0) {
653 if (sdata->type == IEEE80211_IF_TYPE_STA)
654 sdata->u.sta.auto_channel_sel = 1;
655 return 0;
656 } else
657 return ieee80211_set_channel(local, freq->m, -1);
658 } else {
659 int i, div = 1000000;
660 for (i = 0; i < freq->e; i++)
661 div /= 10;
662 if (div > 0)
663 return ieee80211_set_channel(local, -1, freq->m / div);
664 else
665 return -EINVAL;
666 }
667 }
668
669
670 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
671 struct iw_request_info *info,
672 struct iw_freq *freq, char *extra)
673 {
674 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
675
676 /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
677 * driver for the current channel with firmware-based management */
678
679 freq->m = local->hw.conf.freq;
680 freq->e = 6;
681
682 return 0;
683 }
684
685
686 static int ieee80211_ioctl_siwessid(struct net_device *dev,
687 struct iw_request_info *info,
688 struct iw_point *data, char *ssid)
689 {
690 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
691 struct ieee80211_sub_if_data *sdata;
692 size_t len = data->length;
693
694 /* iwconfig uses nul termination in SSID.. */
695 if (len > 0 && ssid[len - 1] == '\0')
696 len--;
697
698 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
699 if (sdata->type == IEEE80211_IF_TYPE_STA ||
700 sdata->type == IEEE80211_IF_TYPE_IBSS) {
701 int ret;
702 if (local->user_space_mlme) {
703 if (len > IEEE80211_MAX_SSID_LEN)
704 return -EINVAL;
705 memcpy(sdata->u.sta.ssid, ssid, len);
706 sdata->u.sta.ssid_len = len;
707 return 0;
708 }
709 sdata->u.sta.auto_ssid_sel = !data->flags;
710 ret = ieee80211_sta_set_ssid(dev, ssid, len);
711 if (ret)
712 return ret;
713 ieee80211_sta_req_auth(dev, &sdata->u.sta);
714 return 0;
715 }
716
717 if (sdata->type == IEEE80211_IF_TYPE_AP) {
718 memcpy(sdata->u.ap.ssid, ssid, len);
719 memset(sdata->u.ap.ssid + len, 0,
720 IEEE80211_MAX_SSID_LEN - len);
721 sdata->u.ap.ssid_len = len;
722 return ieee80211_if_config(dev);
723 }
724 return -EOPNOTSUPP;
725 }
726
727
728 static int ieee80211_ioctl_giwessid(struct net_device *dev,
729 struct iw_request_info *info,
730 struct iw_point *data, char *ssid)
731 {
732 size_t len;
733
734 struct ieee80211_sub_if_data *sdata;
735 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
736 if (sdata->type == IEEE80211_IF_TYPE_STA ||
737 sdata->type == IEEE80211_IF_TYPE_IBSS) {
738 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
739 if (res == 0) {
740 data->length = len;
741 data->flags = 1;
742 } else
743 data->flags = 0;
744 return res;
745 }
746
747 if (sdata->type == IEEE80211_IF_TYPE_AP) {
748 len = sdata->u.ap.ssid_len;
749 if (len > IW_ESSID_MAX_SIZE)
750 len = IW_ESSID_MAX_SIZE;
751 memcpy(ssid, sdata->u.ap.ssid, len);
752 data->length = len;
753 data->flags = 1;
754 return 0;
755 }
756 return -EOPNOTSUPP;
757 }
758
759
760 static int ieee80211_ioctl_siwap(struct net_device *dev,
761 struct iw_request_info *info,
762 struct sockaddr *ap_addr, char *extra)
763 {
764 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
765 struct ieee80211_sub_if_data *sdata;
766
767 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
768 if (sdata->type == IEEE80211_IF_TYPE_STA ||
769 sdata->type == IEEE80211_IF_TYPE_IBSS) {
770 int ret;
771 if (local->user_space_mlme) {
772 memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
773 ETH_ALEN);
774 return 0;
775 }
776 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data)) {
777 sdata->u.sta.auto_bssid_sel = 1;
778 sdata->u.sta.auto_channel_sel = 1;
779 } else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
780 sdata->u.sta.auto_bssid_sel = 1;
781 else
782 sdata->u.sta.auto_bssid_sel = 0;
783 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
784 if (ret)
785 return ret;
786 ieee80211_sta_req_auth(dev, &sdata->u.sta);
787 return 0;
788 } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
789 if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
790 ETH_ALEN) == 0)
791 return 0;
792 return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
793 }
794
795 return -EOPNOTSUPP;
796 }
797
798
799 static int ieee80211_ioctl_giwap(struct net_device *dev,
800 struct iw_request_info *info,
801 struct sockaddr *ap_addr, char *extra)
802 {
803 struct ieee80211_sub_if_data *sdata;
804
805 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
806 if (sdata->type == IEEE80211_IF_TYPE_STA ||
807 sdata->type == IEEE80211_IF_TYPE_IBSS) {
808 ap_addr->sa_family = ARPHRD_ETHER;
809 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
810 return 0;
811 } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
812 ap_addr->sa_family = ARPHRD_ETHER;
813 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
814 return 0;
815 }
816
817 return -EOPNOTSUPP;
818 }
819
820
821 static int ieee80211_ioctl_siwscan(struct net_device *dev,
822 struct iw_request_info *info,
823 struct iw_point *data, char *extra)
824 {
825 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
826 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
827 u8 *ssid = NULL;
828 size_t ssid_len = 0;
829
830 if (!netif_running(dev))
831 return -ENETDOWN;
832
833 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
834 if (sdata->type == IEEE80211_IF_TYPE_STA ||
835 sdata->type == IEEE80211_IF_TYPE_IBSS) {
836 ssid = sdata->u.sta.ssid;
837 ssid_len = sdata->u.sta.ssid_len;
838 } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
839 ssid = sdata->u.ap.ssid;
840 ssid_len = sdata->u.ap.ssid_len;
841 } else
842 return -EINVAL;
843 }
844 return ieee80211_sta_req_scan(dev, ssid, ssid_len);
845 }
846
847
848 static int ieee80211_ioctl_giwscan(struct net_device *dev,
849 struct iw_request_info *info,
850 struct iw_point *data, char *extra)
851 {
852 int res;
853 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
854 if (local->sta_scanning)
855 return -EAGAIN;
856 res = ieee80211_sta_scan_results(dev, extra, data->length);
857 if (res >= 0) {
858 data->length = res;
859 return 0;
860 }
861 data->length = 0;
862 return res;
863 }
864
865
866 static int ieee80211_ioctl_siwrate(struct net_device *dev,
867 struct iw_request_info *info,
868 struct iw_param *rate, char *extra)
869 {
870 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
871 struct ieee80211_hw_mode *mode;
872 int i;
873 u32 target_rate = rate->value / 100000;
874 struct ieee80211_sub_if_data *sdata;
875
876 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
877 if (!sdata->bss)
878 return -ENODEV;
879 mode = local->oper_hw_mode;
880 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
881 * target_rate = X, rate->fixed = 1 means only rate X
882 * target_rate = X, rate->fixed = 0 means all rates <= X */
883 sdata->bss->max_ratectrl_rateidx = -1;
884 sdata->bss->force_unicast_rateidx = -1;
885 if (rate->value < 0)
886 return 0;
887 for (i=0; i< mode->num_rates; i++) {
888 struct ieee80211_rate *rates = &mode->rates[i];
889 int this_rate = rates->rate;
890
891 if (mode->mode == MODE_ATHEROS_TURBO ||
892 mode->mode == MODE_ATHEROS_TURBOG)
893 this_rate *= 2;
894 if (target_rate == this_rate) {
895 sdata->bss->max_ratectrl_rateidx = i;
896 if (rate->fixed)
897 sdata->bss->force_unicast_rateidx = i;
898 break;
899 }
900 }
901 return 0;
902 }
903
904 static int ieee80211_ioctl_giwrate(struct net_device *dev,
905 struct iw_request_info *info,
906 struct iw_param *rate, char *extra)
907 {
908 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
909 struct sta_info *sta;
910 struct ieee80211_sub_if_data *sdata;
911
912 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
913 if (sdata->type == IEEE80211_IF_TYPE_STA)
914 sta = sta_info_get(local, sdata->u.sta.bssid);
915 else
916 return -EOPNOTSUPP;
917 if (!sta)
918 return -ENODEV;
919 if (sta->txrate < local->oper_hw_mode->num_rates)
920 rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
921 else
922 rate->value = 0;
923 sta_info_put(sta);
924 return 0;
925 }
926
927 static int ieee80211_ioctl_siwrts(struct net_device *dev,
928 struct iw_request_info *info,
929 struct iw_param *rts, char *extra)
930 {
931 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
932
933 if (rts->disabled)
934 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
935 else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
936 return -EINVAL;
937 else
938 local->rts_threshold = rts->value;
939
940 /* If the wlan card performs RTS/CTS in hardware/firmware,
941 * configure it here */
942
943 if (local->ops->set_rts_threshold)
944 local->ops->set_rts_threshold(local_to_hw(local),
945 local->rts_threshold);
946
947 return 0;
948 }
949
950 static int ieee80211_ioctl_giwrts(struct net_device *dev,
951 struct iw_request_info *info,
952 struct iw_param *rts, char *extra)
953 {
954 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
955
956 rts->value = local->rts_threshold;
957 rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
958 rts->fixed = 1;
959
960 return 0;
961 }
962
963
964 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
965 struct iw_request_info *info,
966 struct iw_param *frag, char *extra)
967 {
968 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
969
970 if (frag->disabled)
971 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
972 else if (frag->value < 256 ||
973 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
974 return -EINVAL;
975 else {
976 /* Fragment length must be even, so strip LSB. */
977 local->fragmentation_threshold = frag->value & ~0x1;
978 }
979
980 /* If the wlan card performs fragmentation in hardware/firmware,
981 * configure it here */
982
983 if (local->ops->set_frag_threshold)
984 local->ops->set_frag_threshold(
985 local_to_hw(local),
986 local->fragmentation_threshold);
987
988 return 0;
989 }
990
991 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
992 struct iw_request_info *info,
993 struct iw_param *frag, char *extra)
994 {
995 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
996
997 frag->value = local->fragmentation_threshold;
998 frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
999 frag->fixed = 1;
1000
1001 return 0;
1002 }
1003
1004
1005 static int ieee80211_ioctl_siwretry(struct net_device *dev,
1006 struct iw_request_info *info,
1007 struct iw_param *retry, char *extra)
1008 {
1009 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1010
1011 if (retry->disabled ||
1012 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
1013 return -EINVAL;
1014
1015 if (retry->flags & IW_RETRY_MAX)
1016 local->long_retry_limit = retry->value;
1017 else if (retry->flags & IW_RETRY_MIN)
1018 local->short_retry_limit = retry->value;
1019 else {
1020 local->long_retry_limit = retry->value;
1021 local->short_retry_limit = retry->value;
1022 }
1023
1024 if (local->ops->set_retry_limit) {
1025 return local->ops->set_retry_limit(
1026 local_to_hw(local),
1027 local->short_retry_limit,
1028 local->long_retry_limit);
1029 }
1030
1031 return 0;
1032 }
1033
1034
1035 static int ieee80211_ioctl_giwretry(struct net_device *dev,
1036 struct iw_request_info *info,
1037 struct iw_param *retry, char *extra)
1038 {
1039 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1040
1041 retry->disabled = 0;
1042 if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
1043 /* first return min value, iwconfig will ask max value
1044 * later if needed */
1045 retry->flags |= IW_RETRY_LIMIT;
1046 retry->value = local->short_retry_limit;
1047 if (local->long_retry_limit != local->short_retry_limit)
1048 retry->flags |= IW_RETRY_MIN;
1049 return 0;
1050 }
1051 if (retry->flags & IW_RETRY_MAX) {
1052 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
1053 retry->value = local->long_retry_limit;
1054 }
1055
1056 return 0;
1057 }
1058
1059 static void ieee80211_key_enable_hwaccel(struct ieee80211_local *local,
1060 struct ieee80211_key *key)
1061 {
1062 struct ieee80211_key_conf *keyconf;
1063 u8 addr[ETH_ALEN];
1064
1065 if (!key || key->alg != ALG_WEP || !key->force_sw_encrypt ||
1066 (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
1067 return;
1068
1069 memset(addr, 0xff, ETH_ALEN);
1070 keyconf = ieee80211_key_data2conf(local, key);
1071 if (keyconf && local->ops->set_key &&
1072 local->ops->set_key(local_to_hw(local),
1073 SET_KEY, addr, keyconf, 0) == 0) {
1074 key->force_sw_encrypt =
1075 !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
1076 key->hw_key_idx = keyconf->hw_key_idx;
1077 }
1078 kfree(keyconf);
1079 }
1080
1081
1082 static void ieee80211_key_disable_hwaccel(struct ieee80211_local *local,
1083 struct ieee80211_key *key)
1084 {
1085 struct ieee80211_key_conf *keyconf;
1086 u8 addr[ETH_ALEN];
1087
1088 if (!key || key->alg != ALG_WEP || key->force_sw_encrypt ||
1089 (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
1090 return;
1091
1092 memset(addr, 0xff, ETH_ALEN);
1093 keyconf = ieee80211_key_data2conf(local, key);
1094 if (keyconf && local->ops->set_key)
1095 local->ops->set_key(local_to_hw(local), DISABLE_KEY,
1096 addr, keyconf, 0);
1097 kfree(keyconf);
1098 key->force_sw_encrypt = 1;
1099 }
1100
1101
1102 static int ieee80211_ioctl_default_wep_only(struct ieee80211_local *local,
1103 int value)
1104 {
1105 int i;
1106 struct ieee80211_sub_if_data *sdata;
1107
1108 local->default_wep_only = value;
1109 read_lock(&local->sub_if_lock);
1110 list_for_each_entry(sdata, &local->sub_if_list, list)
1111 for (i = 0; i < NUM_DEFAULT_KEYS; i++)
1112 if (value)
1113 ieee80211_key_enable_hwaccel(local,
1114 sdata->keys[i]);
1115 else
1116 ieee80211_key_disable_hwaccel(local,
1117 sdata->keys[i]);
1118 read_unlock(&local->sub_if_lock);
1119
1120 return 0;
1121 }
1122
1123
1124 void ieee80211_update_default_wep_only(struct ieee80211_local *local)
1125 {
1126 int i = 0;
1127 struct ieee80211_sub_if_data *sdata;
1128
1129 read_lock(&local->sub_if_lock);
1130 list_for_each_entry(sdata, &local->sub_if_list, list) {
1131
1132 if (sdata->dev == local->mdev)
1133 continue;
1134
1135 /* If there is an AP interface then depend on userspace to
1136 set default_wep_only correctly. */
1137 if (sdata->type == IEEE80211_IF_TYPE_AP) {
1138 read_unlock(&local->sub_if_lock);
1139 return;
1140 }
1141
1142 i++;
1143 }
1144
1145 read_unlock(&local->sub_if_lock);
1146
1147 if (i <= 1)
1148 ieee80211_ioctl_default_wep_only(local, 1);
1149 else
1150 ieee80211_ioctl_default_wep_only(local, 0);
1151 }
1152
1153
1154 static int ieee80211_ioctl_prism2_param(struct net_device *dev,
1155 struct iw_request_info *info,
1156 void *wrqu, char *extra)
1157 {
1158 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1159 struct ieee80211_sub_if_data *sdata;
1160 int *i = (int *) extra;
1161 int param = *i;
1162 int value = *(i + 1);
1163 int ret = 0;
1164
1165 if (!capable(CAP_NET_ADMIN))
1166 return -EPERM;
1167
1168 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1169
1170 switch (param) {
1171 case PRISM2_PARAM_IEEE_802_1X:
1172 if (local->ops->set_ieee8021x)
1173 ret = local->ops->set_ieee8021x(local_to_hw(local),
1174 value);
1175 if (ret)
1176 printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) "
1177 "for low-level driver\n", dev->name, value);
1178 else
1179 sdata->ieee802_1x = value;
1180 break;
1181
1182 case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1183 if (sdata->type != IEEE80211_IF_TYPE_AP)
1184 ret = -ENOENT;
1185 else
1186 sdata->use_protection = value;
1187 break;
1188
1189 case PRISM2_PARAM_PREAMBLE:
1190 local->short_preamble = value;
1191 break;
1192
1193 case PRISM2_PARAM_STAT_TIME:
1194 if (!local->stat_time && value) {
1195 local->stat_timer.expires = jiffies + HZ * value / 100;
1196 add_timer(&local->stat_timer);
1197 } else if (local->stat_time && !value) {
1198 del_timer_sync(&local->stat_timer);
1199 }
1200 local->stat_time = value;
1201 break;
1202 case PRISM2_PARAM_SHORT_SLOT_TIME:
1203 if (value)
1204 local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
1205 else
1206 local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME;
1207 if (ieee80211_hw_config(local))
1208 ret = -EINVAL;
1209 break;
1210
1211 case PRISM2_PARAM_NEXT_MODE:
1212 local->next_mode = value;
1213 break;
1214
1215 case PRISM2_PARAM_RADIO_ENABLED:
1216 ret = ieee80211_ioctl_set_radio_enabled(dev, value);
1217 break;
1218
1219 case PRISM2_PARAM_ANTENNA_MODE:
1220 local->hw.conf.antenna_mode = value;
1221 if (ieee80211_hw_config(local))
1222 ret = -EINVAL;
1223 break;
1224
1225 case PRISM2_PARAM_STA_ANTENNA_SEL:
1226 local->sta_antenna_sel = value;
1227 break;
1228
1229 case PRISM2_PARAM_TX_POWER_REDUCTION:
1230 if (value < 0)
1231 ret = -EINVAL;
1232 else
1233 local->hw.conf.tx_power_reduction = value;
1234 break;
1235
1236 case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
1237 local->key_tx_rx_threshold = value;
1238 break;
1239
1240 case PRISM2_PARAM_DEFAULT_WEP_ONLY:
1241 ret = ieee80211_ioctl_default_wep_only(local, value);
1242 break;
1243
1244 case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1245 local->wifi_wme_noack_test = value;
1246 break;
1247
1248 case PRISM2_PARAM_SCAN_FLAGS:
1249 local->scan_flags = value;
1250 break;
1251
1252 case PRISM2_PARAM_MIXED_CELL:
1253 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1254 sdata->type != IEEE80211_IF_TYPE_IBSS)
1255 ret = -EINVAL;
1256 else
1257 sdata->u.sta.mixed_cell = !!value;
1258 break;
1259
1260 case PRISM2_PARAM_HW_MODES:
1261 local->enabled_modes = value;
1262 break;
1263
1264 case PRISM2_PARAM_CREATE_IBSS:
1265 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1266 ret = -EINVAL;
1267 else
1268 sdata->u.sta.create_ibss = !!value;
1269 break;
1270 case PRISM2_PARAM_WMM_ENABLED:
1271 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1272 sdata->type != IEEE80211_IF_TYPE_IBSS)
1273 ret = -EINVAL;
1274 else
1275 sdata->u.sta.wmm_enabled = !!value;
1276 break;
1277 case PRISM2_PARAM_RADAR_DETECT:
1278 local->hw.conf.radar_detect = value;
1279 break;
1280 case PRISM2_PARAM_SPECTRUM_MGMT:
1281 local->hw.conf.spect_mgmt = value;
1282 break;
1283 default:
1284 ret = -EOPNOTSUPP;
1285 break;
1286 }
1287
1288 return ret;
1289 }
1290
1291
1292 static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
1293 struct iw_request_info *info,
1294 void *wrqu, char *extra)
1295 {
1296 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1297 struct ieee80211_sub_if_data *sdata;
1298 int *param = (int *) extra;
1299 int ret = 0;
1300
1301 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1302
1303 switch (*param) {
1304 case PRISM2_PARAM_IEEE_802_1X:
1305 *param = sdata->ieee802_1x;
1306 break;
1307
1308 case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1309 *param = sdata->use_protection;
1310 break;
1311
1312 case PRISM2_PARAM_PREAMBLE:
1313 *param = local->short_preamble;
1314 break;
1315
1316 case PRISM2_PARAM_STAT_TIME:
1317 *param = local->stat_time;
1318 break;
1319 case PRISM2_PARAM_SHORT_SLOT_TIME:
1320 *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
1321 break;
1322
1323 case PRISM2_PARAM_NEXT_MODE:
1324 *param = local->next_mode;
1325 break;
1326
1327 case PRISM2_PARAM_ANTENNA_MODE:
1328 *param = local->hw.conf.antenna_mode;
1329 break;
1330
1331 case PRISM2_PARAM_STA_ANTENNA_SEL:
1332 *param = local->sta_antenna_sel;
1333 break;
1334
1335 case PRISM2_PARAM_TX_POWER_REDUCTION:
1336 *param = local->hw.conf.tx_power_reduction;
1337 break;
1338
1339 case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
1340 *param = local->key_tx_rx_threshold;
1341 break;
1342
1343 case PRISM2_PARAM_DEFAULT_WEP_ONLY:
1344 *param = local->default_wep_only;
1345 break;
1346
1347 case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1348 *param = local->wifi_wme_noack_test;
1349 break;
1350
1351 case PRISM2_PARAM_SCAN_FLAGS:
1352 *param = local->scan_flags;
1353 break;
1354
1355 case PRISM2_PARAM_HW_MODES:
1356 *param = local->enabled_modes;
1357 break;
1358
1359 case PRISM2_PARAM_CREATE_IBSS:
1360 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1361 ret = -EINVAL;
1362 else
1363 *param = !!sdata->u.sta.create_ibss;
1364 break;
1365
1366 case PRISM2_PARAM_MIXED_CELL:
1367 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1368 sdata->type != IEEE80211_IF_TYPE_IBSS)
1369 ret = -EINVAL;
1370 else
1371 *param = !!sdata->u.sta.mixed_cell;
1372 break;
1373 case PRISM2_PARAM_WMM_ENABLED:
1374 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1375 sdata->type != IEEE80211_IF_TYPE_IBSS)
1376 ret = -EINVAL;
1377 else
1378 *param = !!sdata->u.sta.wmm_enabled;
1379 break;
1380 default:
1381 ret = -EOPNOTSUPP;
1382 break;
1383 }
1384
1385 return ret;
1386 }
1387
1388 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
1389 struct iw_request_info *info,
1390 struct iw_point *data, char *extra)
1391 {
1392 struct ieee80211_sub_if_data *sdata;
1393 struct iw_mlme *mlme = (struct iw_mlme *) extra;
1394
1395 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1396 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1397 sdata->type != IEEE80211_IF_TYPE_IBSS)
1398 return -EINVAL;
1399
1400 switch (mlme->cmd) {
1401 case IW_MLME_DEAUTH:
1402 /* TODO: mlme->addr.sa_data */
1403 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
1404 case IW_MLME_DISASSOC:
1405 /* TODO: mlme->addr.sa_data */
1406 return ieee80211_sta_disassociate(dev, mlme->reason_code);
1407 default:
1408 return -EOPNOTSUPP;
1409 }
1410 }
1411
1412
1413 static int ieee80211_ioctl_siwencode(struct net_device *dev,
1414 struct iw_request_info *info,
1415 struct iw_point *erq, char *keybuf)
1416 {
1417 struct ieee80211_sub_if_data *sdata;
1418 int idx, i, alg = ALG_WEP;
1419 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1420
1421 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1422
1423 idx = erq->flags & IW_ENCODE_INDEX;
1424 if (idx == 0) {
1425 if (sdata->default_key)
1426 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1427 if (sdata->default_key == sdata->keys[i]) {
1428 idx = i;
1429 break;
1430 }
1431 }
1432 } else if (idx < 1 || idx > 4)
1433 return -EINVAL;
1434 else
1435 idx--;
1436
1437 if (erq->flags & IW_ENCODE_DISABLED)
1438 alg = ALG_NONE;
1439 else if (erq->length == 0) {
1440 /* No key data - just set the default TX key index */
1441 if (sdata->default_key != sdata->keys[idx]) {
1442 ieee80211_debugfs_key_remove_default(sdata);
1443 sdata->default_key = sdata->keys[idx];
1444 if (sdata->default_key)
1445 ieee80211_debugfs_key_add_default(sdata);
1446 }
1447 return 0;
1448 }
1449
1450 return ieee80211_set_encryption(
1451 dev, bcaddr,
1452 idx, alg,
1453 !sdata->default_key,
1454 keybuf, erq->length);
1455 }
1456
1457
1458 static int ieee80211_ioctl_giwencode(struct net_device *dev,
1459 struct iw_request_info *info,
1460 struct iw_point *erq, char *key)
1461 {
1462 struct ieee80211_sub_if_data *sdata;
1463 int idx, i;
1464
1465 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1466
1467 idx = erq->flags & IW_ENCODE_INDEX;
1468 if (idx < 1 || idx > 4) {
1469 idx = -1;
1470 if (!sdata->default_key)
1471 idx = 0;
1472 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1473 if (sdata->default_key == sdata->keys[i]) {
1474 idx = i;
1475 break;
1476 }
1477 }
1478 if (idx < 0)
1479 return -EINVAL;
1480 } else
1481 idx--;
1482
1483 erq->flags = idx + 1;
1484
1485 if (!sdata->keys[idx]) {
1486 erq->length = 0;
1487 erq->flags |= IW_ENCODE_DISABLED;
1488 return 0;
1489 }
1490
1491 memcpy(key, sdata->keys[idx]->key,
1492 min((int)erq->length, sdata->keys[idx]->keylen));
1493 erq->length = sdata->keys[idx]->keylen;
1494 erq->flags |= IW_ENCODE_ENABLED;
1495
1496 return 0;
1497 }
1498
1499 static int ieee80211_ioctl_siwauth(struct net_device *dev,
1500 struct iw_request_info *info,
1501 struct iw_param *data, char *extra)
1502 {
1503 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1505 int ret = 0;
1506
1507 switch (data->flags & IW_AUTH_INDEX) {
1508 case IW_AUTH_WPA_VERSION:
1509 case IW_AUTH_CIPHER_PAIRWISE:
1510 case IW_AUTH_CIPHER_GROUP:
1511 case IW_AUTH_WPA_ENABLED:
1512 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1513 break;
1514 case IW_AUTH_KEY_MGMT:
1515 if (sdata->type != IEEE80211_IF_TYPE_STA)
1516 ret = -EINVAL;
1517 else {
1518 /*
1519 * TODO: sdata->u.sta.key_mgmt does not match with WE18
1520 * value completely; could consider modifying this to
1521 * be closer to WE18. For now, this value is not really
1522 * used for anything else than Privacy matching, so the
1523 * current code here should be more or less OK.
1524 */
1525 if (data->value & IW_AUTH_KEY_MGMT_802_1X) {
1526 sdata->u.sta.key_mgmt =
1527 IEEE80211_KEY_MGMT_WPA_EAP;
1528 } else if (data->value & IW_AUTH_KEY_MGMT_PSK) {
1529 sdata->u.sta.key_mgmt =
1530 IEEE80211_KEY_MGMT_WPA_PSK;
1531 } else {
1532 sdata->u.sta.key_mgmt =
1533 IEEE80211_KEY_MGMT_NONE;
1534 }
1535 }
1536 break;
1537 case IW_AUTH_80211_AUTH_ALG:
1538 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1539 sdata->type == IEEE80211_IF_TYPE_IBSS)
1540 sdata->u.sta.auth_algs = data->value;
1541 else
1542 ret = -EOPNOTSUPP;
1543 break;
1544 case IW_AUTH_PRIVACY_INVOKED:
1545 if (local->ops->set_privacy_invoked)
1546 ret = local->ops->set_privacy_invoked(
1547 local_to_hw(local), data->value);
1548 break;
1549 default:
1550 ret = -EOPNOTSUPP;
1551 break;
1552 }
1553 return ret;
1554 }
1555
1556 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1557 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
1558 {
1559 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1560 struct iw_statistics *wstats = &local->wstats;
1561 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1562 struct sta_info *sta = NULL;
1563
1564 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1565 sdata->type == IEEE80211_IF_TYPE_IBSS)
1566 sta = sta_info_get(local, sdata->u.sta.bssid);
1567 if (!sta) {
1568 wstats->discard.fragment = 0;
1569 wstats->discard.misc = 0;
1570 wstats->qual.qual = 0;
1571 wstats->qual.level = 0;
1572 wstats->qual.noise = 0;
1573 wstats->qual.updated = IW_QUAL_ALL_INVALID;
1574 } else {
1575 wstats->qual.level = sta->last_rssi;
1576 wstats->qual.qual = sta->last_signal;
1577 wstats->qual.noise = sta->last_noise;
1578 wstats->qual.updated = local->wstats_flags;
1579 sta_info_put(sta);
1580 }
1581 return wstats;
1582 }
1583
1584 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1585 struct iw_request_info *info,
1586 struct iw_param *data, char *extra)
1587 {
1588 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1589 int ret = 0;
1590
1591 switch (data->flags & IW_AUTH_INDEX) {
1592 case IW_AUTH_80211_AUTH_ALG:
1593 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1594 sdata->type == IEEE80211_IF_TYPE_IBSS)
1595 data->value = sdata->u.sta.auth_algs;
1596 else
1597 ret = -EOPNOTSUPP;
1598 break;
1599 default:
1600 ret = -EOPNOTSUPP;
1601 break;
1602 }
1603 return ret;
1604 }
1605
1606
1607 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1608 struct iw_request_info *info,
1609 struct iw_point *erq, char *extra)
1610 {
1611 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1612 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1613 int alg, idx, i;
1614
1615 switch (ext->alg) {
1616 case IW_ENCODE_ALG_NONE:
1617 alg = ALG_NONE;
1618 break;
1619 case IW_ENCODE_ALG_WEP:
1620 alg = ALG_WEP;
1621 break;
1622 case IW_ENCODE_ALG_TKIP:
1623 alg = ALG_TKIP;
1624 break;
1625 case IW_ENCODE_ALG_CCMP:
1626 alg = ALG_CCMP;
1627 break;
1628 default:
1629 return -EOPNOTSUPP;
1630 }
1631
1632 if (erq->flags & IW_ENCODE_DISABLED)
1633 alg = ALG_NONE;
1634
1635 idx = erq->flags & IW_ENCODE_INDEX;
1636 if (idx < 1 || idx > 4) {
1637 idx = -1;
1638 if (!sdata->default_key)
1639 idx = 0;
1640 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1641 if (sdata->default_key == sdata->keys[i]) {
1642 idx = i;
1643 break;
1644 }
1645 }
1646 if (idx < 0)
1647 return -EINVAL;
1648 } else
1649 idx--;
1650
1651 return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1652 ext->ext_flags &
1653 IW_ENCODE_EXT_SET_TX_KEY,
1654 ext->key, ext->key_len);
1655 }
1656
1657
1658 static const struct iw_priv_args ieee80211_ioctl_priv[] = {
1659 { PRISM2_IOCTL_PRISM2_PARAM,
1660 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
1661 { PRISM2_IOCTL_GET_PRISM2_PARAM,
1662 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1663 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
1664 };
1665
1666 /* Structures to export the Wireless Handlers */
1667
1668 static const iw_handler ieee80211_handler[] =
1669 {
1670 (iw_handler) NULL, /* SIOCSIWCOMMIT */
1671 (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
1672 (iw_handler) NULL, /* SIOCSIWNWID */
1673 (iw_handler) NULL, /* SIOCGIWNWID */
1674 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
1675 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
1676 (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
1677 (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
1678 (iw_handler) NULL, /* SIOCSIWSENS */
1679 (iw_handler) NULL, /* SIOCGIWSENS */
1680 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
1681 (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
1682 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
1683 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
1684 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
1685 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
1686 iw_handler_set_spy, /* SIOCSIWSPY */
1687 iw_handler_get_spy, /* SIOCGIWSPY */
1688 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
1689 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
1690 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
1691 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
1692 (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
1693 (iw_handler) NULL, /* SIOCGIWAPLIST */
1694 (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
1695 (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
1696 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
1697 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
1698 (iw_handler) NULL, /* SIOCSIWNICKN */
1699 (iw_handler) NULL, /* SIOCGIWNICKN */
1700 (iw_handler) NULL, /* -- hole -- */
1701 (iw_handler) NULL, /* -- hole -- */
1702 (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
1703 (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
1704 (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
1705 (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
1706 (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
1707 (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
1708 (iw_handler) NULL, /* SIOCSIWTXPOW */
1709 (iw_handler) NULL, /* SIOCGIWTXPOW */
1710 (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
1711 (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
1712 (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
1713 (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
1714 (iw_handler) NULL, /* SIOCSIWPOWER */
1715 (iw_handler) NULL, /* SIOCGIWPOWER */
1716 (iw_handler) NULL, /* -- hole -- */
1717 (iw_handler) NULL, /* -- hole -- */
1718 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
1719 (iw_handler) NULL, /* SIOCGIWGENIE */
1720 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
1721 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
1722 (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
1723 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
1724 (iw_handler) NULL, /* SIOCSIWPMKSA */
1725 (iw_handler) NULL, /* -- hole -- */
1726 };
1727
1728 static const iw_handler ieee80211_private_handler[] =
1729 { /* SIOCIWFIRSTPRIV + */
1730 (iw_handler) ieee80211_ioctl_prism2_param, /* 0 */
1731 (iw_handler) ieee80211_ioctl_get_prism2_param, /* 1 */
1732 };
1733
1734 const struct iw_handler_def ieee80211_iw_handler_def =
1735 {
1736 .num_standard = ARRAY_SIZE(ieee80211_handler),
1737 .num_private = ARRAY_SIZE(ieee80211_private_handler),
1738 .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv),
1739 .standard = (iw_handler *) ieee80211_handler,
1740 .private = (iw_handler *) ieee80211_private_handler,
1741 .private_args = (struct iw_priv_args *) ieee80211_ioctl_priv,
1742 .get_wireless_stats = ieee80211_get_wireless_stats,
1743 };
Linux 2.6 libata-dev (mirror)