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[CRYPTO] api: Read module pointer before freeing algorithm
[linux-2.6/mini2440.git] / net / mac80211 / ieee80211_ioctl.c
blob352f03bd8a3adcd8104212e1bf731c8961a4af46
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
349 data->length = sizeof(struct iw_range);
350 memset(range, 0, sizeof(struct iw_range));
351
352 range->we_version_compiled = WIRELESS_EXT;
353 range->we_version_source = 21;
354 range->retry_capa = IW_RETRY_LIMIT;
355 range->retry_flags = IW_RETRY_LIMIT;
356 range->min_retry = 0;
357 range->max_retry = 255;
358 range->min_rts = 0;
359 range->max_rts = 2347;
360 range->min_frag = 256;
361 range->max_frag = 2346;
362
363 range->encoding_size[0] = 5;
364 range->encoding_size[1] = 13;
365 range->num_encoding_sizes = 2;
366 range->max_encoding_tokens = NUM_DEFAULT_KEYS;
367
368 range->max_qual.qual = local->hw.max_signal;
369 range->max_qual.level = local->hw.max_rssi;
370 range->max_qual.noise = local->hw.max_noise;
371 range->max_qual.updated = local->wstats_flags;
372
373 range->avg_qual.qual = local->hw.max_signal/2;
374 range->avg_qual.level = 0;
375 range->avg_qual.noise = 0;
376 range->avg_qual.updated = local->wstats_flags;
377
378 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
379 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
380
381 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
382 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
383 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
384 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
385
386 return 0;
387 }
388
389
390 struct ieee80211_channel_range {
391 short start_freq;
392 short end_freq;
393 unsigned char power_level;
394 unsigned char antenna_max;
395 };
396
397 static const struct ieee80211_channel_range ieee80211_fcc_channels[] = {
398 { 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */,
399 { 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */,
400 { 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */,
401 { 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */,
402 { 0 }
403 };
404
405 static const struct ieee80211_channel_range ieee80211_mkk_channels[] = {
406 { 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */,
407 { 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */,
408 { 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */,
409 { 0 }
410 };
411
412
413 static const struct ieee80211_channel_range *channel_range =
414 ieee80211_fcc_channels;
415
416
417 static void ieee80211_unmask_channel(struct net_device *dev, int mode,
418 struct ieee80211_channel *chan)
419 {
420 int i;
421
422 chan->flag = 0;
423
424 if (ieee80211_regdom == 64 &&
425 (mode == MODE_ATHEROS_TURBO || mode == MODE_ATHEROS_TURBOG)) {
426 /* Do not allow Turbo modes in Japan. */
427 return;
428 }
429
430 for (i = 0; channel_range[i].start_freq; i++) {
431 const struct ieee80211_channel_range *r = &channel_range[i];
432 if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) {
433 if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz &&
434 chan->freq >= 5260 && chan->freq <= 5320) {
435 /*
436 * Skip new channels in Japan since the
437 * firmware was not marked having been upgraded
438 * by the vendor.
439 */
440 continue;
441 }
442
443 if (ieee80211_regdom == 0x10 &&
444 (chan->freq == 5190 || chan->freq == 5210 ||
445 chan->freq == 5230)) {
446 /* Skip MKK channels when in FCC domain. */
447 continue;
448 }
449
450 chan->flag |= IEEE80211_CHAN_W_SCAN |
451 IEEE80211_CHAN_W_ACTIVE_SCAN |
452 IEEE80211_CHAN_W_IBSS;
453 chan->power_level = r->power_level;
454 chan->antenna_max = r->antenna_max;
455
456 if (ieee80211_regdom == 64 &&
457 (chan->freq == 5170 || chan->freq == 5190 ||
458 chan->freq == 5210 || chan->freq == 5230)) {
459 /*
460 * New regulatory rules in Japan have backwards
461 * compatibility with old channels in 5.15-5.25
462 * GHz band, but the station is not allowed to
463 * use active scan on these old channels.
464 */
465 chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN;
466 }
467
468 if (ieee80211_regdom == 64 &&
469 (chan->freq == 5260 || chan->freq == 5280 ||
470 chan->freq == 5300 || chan->freq == 5320)) {
471 /*
472 * IBSS is not allowed on 5.25-5.35 GHz band
473 * due to radar detection requirements.
474 */
475 chan->flag &= ~IEEE80211_CHAN_W_IBSS;
476 }
477
478 break;
479 }
480 }
481 }
482
483
484 static int ieee80211_unmask_channels(struct net_device *dev)
485 {
486 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
487 struct ieee80211_hw_mode *mode;
488 int c;
489
490 list_for_each_entry(mode, &local->modes_list, list) {
491 for (c = 0; c < mode->num_channels; c++) {
492 ieee80211_unmask_channel(dev, mode->mode,
493 &mode->channels[c]);
494 }
495 }
496 return 0;
497 }
498
499
500 int ieee80211_init_client(struct net_device *dev)
501 {
502 if (ieee80211_regdom == 0x40)
503 channel_range = ieee80211_mkk_channels;
504 ieee80211_unmask_channels(dev);
505 return 0;
506 }
507
508
509 static int ieee80211_ioctl_siwmode(struct net_device *dev,
510 struct iw_request_info *info,
511 __u32 *mode, char *extra)
512 {
513 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
514 int type;
515
516 if (sdata->type == IEEE80211_IF_TYPE_VLAN)
517 return -EOPNOTSUPP;
518
519 switch (*mode) {
520 case IW_MODE_INFRA:
521 type = IEEE80211_IF_TYPE_STA;
522 break;
523 case IW_MODE_ADHOC:
524 type = IEEE80211_IF_TYPE_IBSS;
525 break;
526 case IW_MODE_MONITOR:
527 type = IEEE80211_IF_TYPE_MNTR;
528 break;
529 default:
530 return -EINVAL;
531 }
532
533 if (type == sdata->type)
534 return 0;
535 if (netif_running(dev))
536 return -EBUSY;
537
538 ieee80211_if_reinit(dev);
539 ieee80211_if_set_type(dev, type);
540
541 return 0;
542 }
543
544
545 static int ieee80211_ioctl_giwmode(struct net_device *dev,
546 struct iw_request_info *info,
547 __u32 *mode, char *extra)
548 {
549 struct ieee80211_sub_if_data *sdata;
550
551 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
552 switch (sdata->type) {
553 case IEEE80211_IF_TYPE_AP:
554 *mode = IW_MODE_MASTER;
555 break;
556 case IEEE80211_IF_TYPE_STA:
557 *mode = IW_MODE_INFRA;
558 break;
559 case IEEE80211_IF_TYPE_IBSS:
560 *mode = IW_MODE_ADHOC;
561 break;
562 case IEEE80211_IF_TYPE_MNTR:
563 *mode = IW_MODE_MONITOR;
564 break;
565 case IEEE80211_IF_TYPE_WDS:
566 *mode = IW_MODE_REPEAT;
567 break;
568 case IEEE80211_IF_TYPE_VLAN:
569 *mode = IW_MODE_SECOND; /* FIXME */
570 break;
571 default:
572 *mode = IW_MODE_AUTO;
573 break;
574 }
575 return 0;
576 }
577
578 int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
579 {
580 struct ieee80211_hw_mode *mode;
581 int c, set = 0;
582 int ret = -EINVAL;
583
584 list_for_each_entry(mode, &local->modes_list, list) {
585 if (!(local->enabled_modes & (1 << mode->mode)))
586 continue;
587 for (c = 0; c < mode->num_channels; c++) {
588 struct ieee80211_channel *chan = &mode->channels[c];
589 if (chan->flag & IEEE80211_CHAN_W_SCAN &&
590 ((chan->chan == channel) || (chan->freq == freq))) {
591 /* Use next_mode as the mode preference to
592 * resolve non-unique channel numbers. */
593 if (set && mode->mode != local->next_mode)
594 continue;
595
596 local->oper_channel = chan;
597 local->oper_hw_mode = mode;
598 set++;
599 }
600 }
601 }
602
603 if (set) {
604 if (local->sta_scanning)
605 ret = 0;
606 else
607 ret = ieee80211_hw_config(local);
608
609 rate_control_clear(local);
610 }
611
612 return ret;
613 }
614
615 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
616 struct iw_request_info *info,
617 struct iw_freq *freq, char *extra)
618 {
619 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
620 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
621
622 if (sdata->type == IEEE80211_IF_TYPE_STA)
623 sdata->u.sta.auto_channel_sel = 0;
624
625 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
626 if (freq->e == 0) {
627 if (freq->m < 0) {
628 if (sdata->type == IEEE80211_IF_TYPE_STA)
629 sdata->u.sta.auto_channel_sel = 1;
630 return 0;
631 } else
632 return ieee80211_set_channel(local, freq->m, -1);
633 } else {
634 int i, div = 1000000;
635 for (i = 0; i < freq->e; i++)
636 div /= 10;
637 if (div > 0)
638 return ieee80211_set_channel(local, -1, freq->m / div);
639 else
640 return -EINVAL;
641 }
642 }
643
644
645 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
646 struct iw_request_info *info,
647 struct iw_freq *freq, char *extra)
648 {
649 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
650
651 /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
652 * driver for the current channel with firmware-based management */
653
654 freq->m = local->hw.conf.freq;
655 freq->e = 6;
656
657 return 0;
658 }
659
660
661 static int ieee80211_ioctl_siwessid(struct net_device *dev,
662 struct iw_request_info *info,
663 struct iw_point *data, char *ssid)
664 {
665 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
666 struct ieee80211_sub_if_data *sdata;
667 size_t len = data->length;
668
669 /* iwconfig uses nul termination in SSID.. */
670 if (len > 0 && ssid[len - 1] == '\0')
671 len--;
672
673 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
674 if (sdata->type == IEEE80211_IF_TYPE_STA ||
675 sdata->type == IEEE80211_IF_TYPE_IBSS) {
676 int ret;
677 if (local->user_space_mlme) {
678 if (len > IEEE80211_MAX_SSID_LEN)
679 return -EINVAL;
680 memcpy(sdata->u.sta.ssid, ssid, len);
681 sdata->u.sta.ssid_len = len;
682 return 0;
683 }
684 sdata->u.sta.auto_ssid_sel = !data->flags;
685 ret = ieee80211_sta_set_ssid(dev, ssid, len);
686 if (ret)
687 return ret;
688 ieee80211_sta_req_auth(dev, &sdata->u.sta);
689 return 0;
690 }
691
692 if (sdata->type == IEEE80211_IF_TYPE_AP) {
693 memcpy(sdata->u.ap.ssid, ssid, len);
694 memset(sdata->u.ap.ssid + len, 0,
695 IEEE80211_MAX_SSID_LEN - len);
696 sdata->u.ap.ssid_len = len;
697 return ieee80211_if_config(dev);
698 }
699 return -EOPNOTSUPP;
700 }
701
702
703 static int ieee80211_ioctl_giwessid(struct net_device *dev,
704 struct iw_request_info *info,
705 struct iw_point *data, char *ssid)
706 {
707 size_t len;
708
709 struct ieee80211_sub_if_data *sdata;
710 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
711 if (sdata->type == IEEE80211_IF_TYPE_STA ||
712 sdata->type == IEEE80211_IF_TYPE_IBSS) {
713 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
714 if (res == 0) {
715 data->length = len;
716 data->flags = 1;
717 } else
718 data->flags = 0;
719 return res;
720 }
721
722 if (sdata->type == IEEE80211_IF_TYPE_AP) {
723 len = sdata->u.ap.ssid_len;
724 if (len > IW_ESSID_MAX_SIZE)
725 len = IW_ESSID_MAX_SIZE;
726 memcpy(ssid, sdata->u.ap.ssid, len);
727 data->length = len;
728 data->flags = 1;
729 return 0;
730 }
731 return -EOPNOTSUPP;
732 }
733
734
735 static int ieee80211_ioctl_siwap(struct net_device *dev,
736 struct iw_request_info *info,
737 struct sockaddr *ap_addr, char *extra)
738 {
739 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
740 struct ieee80211_sub_if_data *sdata;
741
742 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
743 if (sdata->type == IEEE80211_IF_TYPE_STA ||
744 sdata->type == IEEE80211_IF_TYPE_IBSS) {
745 int ret;
746 if (local->user_space_mlme) {
747 memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
748 ETH_ALEN);
749 return 0;
750 }
751 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data)) {
752 sdata->u.sta.auto_bssid_sel = 1;
753 sdata->u.sta.auto_channel_sel = 1;
754 } else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
755 sdata->u.sta.auto_bssid_sel = 1;
756 else
757 sdata->u.sta.auto_bssid_sel = 0;
758 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
759 if (ret)
760 return ret;
761 ieee80211_sta_req_auth(dev, &sdata->u.sta);
762 return 0;
763 } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
764 if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
765 ETH_ALEN) == 0)
766 return 0;
767 return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
768 }
769
770 return -EOPNOTSUPP;
771 }
772
773
774 static int ieee80211_ioctl_giwap(struct net_device *dev,
775 struct iw_request_info *info,
776 struct sockaddr *ap_addr, char *extra)
777 {
778 struct ieee80211_sub_if_data *sdata;
779
780 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
781 if (sdata->type == IEEE80211_IF_TYPE_STA ||
782 sdata->type == IEEE80211_IF_TYPE_IBSS) {
783 ap_addr->sa_family = ARPHRD_ETHER;
784 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
785 return 0;
786 } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
787 ap_addr->sa_family = ARPHRD_ETHER;
788 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
789 return 0;
790 }
791
792 return -EOPNOTSUPP;
793 }
794
795
796 static int ieee80211_ioctl_siwscan(struct net_device *dev,
797 struct iw_request_info *info,
798 struct iw_point *data, char *extra)
799 {
800 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
801 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
802 u8 *ssid = NULL;
803 size_t ssid_len = 0;
804
805 if (!netif_running(dev))
806 return -ENETDOWN;
807
808 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
809 if (sdata->type == IEEE80211_IF_TYPE_STA ||
810 sdata->type == IEEE80211_IF_TYPE_IBSS) {
811 ssid = sdata->u.sta.ssid;
812 ssid_len = sdata->u.sta.ssid_len;
813 } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
814 ssid = sdata->u.ap.ssid;
815 ssid_len = sdata->u.ap.ssid_len;
816 } else
817 return -EINVAL;
818 }
819 return ieee80211_sta_req_scan(dev, ssid, ssid_len);
820 }
821
822
823 static int ieee80211_ioctl_giwscan(struct net_device *dev,
824 struct iw_request_info *info,
825 struct iw_point *data, char *extra)
826 {
827 int res;
828 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
829 if (local->sta_scanning)
830 return -EAGAIN;
831 res = ieee80211_sta_scan_results(dev, extra, data->length);
832 if (res >= 0) {
833 data->length = res;
834 return 0;
835 }
836 data->length = 0;
837 return res;
838 }
839
840
841 static int ieee80211_ioctl_siwrts(struct net_device *dev,
842 struct iw_request_info *info,
843 struct iw_param *rts, char *extra)
844 {
845 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
846
847 if (rts->disabled)
848 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
849 else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
850 return -EINVAL;
851 else
852 local->rts_threshold = rts->value;
853
854 /* If the wlan card performs RTS/CTS in hardware/firmware,
855 * configure it here */
856
857 if (local->ops->set_rts_threshold)
858 local->ops->set_rts_threshold(local_to_hw(local),
859 local->rts_threshold);
860
861 return 0;
862 }
863
864 static int ieee80211_ioctl_giwrts(struct net_device *dev,
865 struct iw_request_info *info,
866 struct iw_param *rts, char *extra)
867 {
868 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
869
870 rts->value = local->rts_threshold;
871 rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
872 rts->fixed = 1;
873
874 return 0;
875 }
876
877
878 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
879 struct iw_request_info *info,
880 struct iw_param *frag, char *extra)
881 {
882 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
883
884 if (frag->disabled)
885 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
886 else if (frag->value < 256 ||
887 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
888 return -EINVAL;
889 else {
890 /* Fragment length must be even, so strip LSB. */
891 local->fragmentation_threshold = frag->value & ~0x1;
892 }
893
894 /* If the wlan card performs fragmentation in hardware/firmware,
895 * configure it here */
896
897 if (local->ops->set_frag_threshold)
898 local->ops->set_frag_threshold(
899 local_to_hw(local),
900 local->fragmentation_threshold);
901
902 return 0;
903 }
904
905 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
906 struct iw_request_info *info,
907 struct iw_param *frag, char *extra)
908 {
909 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
910
911 frag->value = local->fragmentation_threshold;
912 frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
913 frag->fixed = 1;
914
915 return 0;
916 }
917
918
919 static int ieee80211_ioctl_siwretry(struct net_device *dev,
920 struct iw_request_info *info,
921 struct iw_param *retry, char *extra)
922 {
923 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
924
925 if (retry->disabled ||
926 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
927 return -EINVAL;
928
929 if (retry->flags & IW_RETRY_MAX)
930 local->long_retry_limit = retry->value;
931 else if (retry->flags & IW_RETRY_MIN)
932 local->short_retry_limit = retry->value;
933 else {
934 local->long_retry_limit = retry->value;
935 local->short_retry_limit = retry->value;
936 }
937
938 if (local->ops->set_retry_limit) {
939 return local->ops->set_retry_limit(
940 local_to_hw(local),
941 local->short_retry_limit,
942 local->long_retry_limit);
943 }
944
945 return 0;
946 }
947
948
949 static int ieee80211_ioctl_giwretry(struct net_device *dev,
950 struct iw_request_info *info,
951 struct iw_param *retry, char *extra)
952 {
953 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
954
955 retry->disabled = 0;
956 if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
957 /* first return min value, iwconfig will ask max value
958 * later if needed */
959 retry->flags |= IW_RETRY_LIMIT;
960 retry->value = local->short_retry_limit;
961 if (local->long_retry_limit != local->short_retry_limit)
962 retry->flags |= IW_RETRY_MIN;
963 return 0;
964 }
965 if (retry->flags & IW_RETRY_MAX) {
966 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
967 retry->value = local->long_retry_limit;
968 }
969
970 return 0;
971 }
972
973 static int ieee80211_ioctl_clear_keys(struct net_device *dev)
974 {
975 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
976 struct ieee80211_key_conf key;
977 int i;
978 u8 addr[ETH_ALEN];
979 struct ieee80211_key_conf *keyconf;
980 struct ieee80211_sub_if_data *sdata;
981 struct sta_info *sta;
982
983 memset(addr, 0xff, ETH_ALEN);
984 read_lock(&local->sub_if_lock);
985 list_for_each_entry(sdata, &local->sub_if_list, list) {
986 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
987 keyconf = NULL;
988 if (sdata->keys[i] &&
989 !sdata->keys[i]->force_sw_encrypt &&
990 local->ops->set_key &&
991 (keyconf = ieee80211_key_data2conf(local,
992 sdata->keys[i])))
993 local->ops->set_key(local_to_hw(local),
994 DISABLE_KEY, addr,
995 keyconf, 0);
996 kfree(keyconf);
997 ieee80211_key_free(sdata->keys[i]);
998 sdata->keys[i] = NULL;
999 }
1000 sdata->default_key = NULL;
1001 }
1002 read_unlock(&local->sub_if_lock);
1003
1004 spin_lock_bh(&local->sta_lock);
1005 list_for_each_entry(sta, &local->sta_list, list) {
1006 keyconf = NULL;
1007 if (sta->key && !sta->key->force_sw_encrypt &&
1008 local->ops->set_key &&
1009 (keyconf = ieee80211_key_data2conf(local, sta->key)))
1010 local->ops->set_key(local_to_hw(local), DISABLE_KEY,
1011 sta->addr, keyconf, sta->aid);
1012 kfree(keyconf);
1013 ieee80211_key_free(sta->key);
1014 sta->key = NULL;
1015 }
1016 spin_unlock_bh(&local->sta_lock);
1017
1018 memset(&key, 0, sizeof(key));
1019 if (local->ops->set_key &&
1020 local->ops->set_key(local_to_hw(local), REMOVE_ALL_KEYS,
1021 NULL, &key, 0))
1022 printk(KERN_DEBUG "%s: failed to remove hwaccel keys\n",
1023 dev->name);
1024
1025 return 0;
1026 }
1027
1028
1029 static int
1030 ieee80211_ioctl_force_unicast_rate(struct net_device *dev,
1031 struct ieee80211_sub_if_data *sdata,
1032 int rate)
1033 {
1034 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1035 struct ieee80211_hw_mode *mode;
1036 int i;
1037
1038 if (sdata->type != IEEE80211_IF_TYPE_AP)
1039 return -ENOENT;
1040
1041 if (rate == 0) {
1042 sdata->u.ap.force_unicast_rateidx = -1;
1043 return 0;
1044 }
1045
1046 mode = local->oper_hw_mode;
1047 for (i = 0; i < mode->num_rates; i++) {
1048 if (mode->rates[i].rate == rate) {
1049 sdata->u.ap.force_unicast_rateidx = i;
1050 return 0;
1051 }
1052 }
1053 return -EINVAL;
1054 }
1055
1056
1057 static int
1058 ieee80211_ioctl_max_ratectrl_rate(struct net_device *dev,
1059 struct ieee80211_sub_if_data *sdata,
1060 int rate)
1061 {
1062 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1063 struct ieee80211_hw_mode *mode;
1064 int i;
1065
1066 if (sdata->type != IEEE80211_IF_TYPE_AP)
1067 return -ENOENT;
1068
1069 if (rate == 0) {
1070 sdata->u.ap.max_ratectrl_rateidx = -1;
1071 return 0;
1072 }
1073
1074 mode = local->oper_hw_mode;
1075 for (i = 0; i < mode->num_rates; i++) {
1076 if (mode->rates[i].rate == rate) {
1077 sdata->u.ap.max_ratectrl_rateidx = i;
1078 return 0;
1079 }
1080 }
1081 return -EINVAL;
1082 }
1083
1084
1085 static void ieee80211_key_enable_hwaccel(struct ieee80211_local *local,
1086 struct ieee80211_key *key)
1087 {
1088 struct ieee80211_key_conf *keyconf;
1089 u8 addr[ETH_ALEN];
1090
1091 if (!key || key->alg != ALG_WEP || !key->force_sw_encrypt ||
1092 (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
1093 return;
1094
1095 memset(addr, 0xff, ETH_ALEN);
1096 keyconf = ieee80211_key_data2conf(local, key);
1097 if (keyconf && local->ops->set_key &&
1098 local->ops->set_key(local_to_hw(local),
1099 SET_KEY, addr, keyconf, 0) == 0) {
1100 key->force_sw_encrypt =
1101 !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
1102 key->hw_key_idx = keyconf->hw_key_idx;
1103 }
1104 kfree(keyconf);
1105 }
1106
1107
1108 static void ieee80211_key_disable_hwaccel(struct ieee80211_local *local,
1109 struct ieee80211_key *key)
1110 {
1111 struct ieee80211_key_conf *keyconf;
1112 u8 addr[ETH_ALEN];
1113
1114 if (!key || key->alg != ALG_WEP || key->force_sw_encrypt ||
1115 (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
1116 return;
1117
1118 memset(addr, 0xff, ETH_ALEN);
1119 keyconf = ieee80211_key_data2conf(local, key);
1120 if (keyconf && local->ops->set_key)
1121 local->ops->set_key(local_to_hw(local), DISABLE_KEY,
1122 addr, keyconf, 0);
1123 kfree(keyconf);
1124 key->force_sw_encrypt = 1;
1125 }
1126
1127
1128 static int ieee80211_ioctl_default_wep_only(struct ieee80211_local *local,
1129 int value)
1130 {
1131 int i;
1132 struct ieee80211_sub_if_data *sdata;
1133
1134 local->default_wep_only = value;
1135 read_lock(&local->sub_if_lock);
1136 list_for_each_entry(sdata, &local->sub_if_list, list)
1137 for (i = 0; i < NUM_DEFAULT_KEYS; i++)
1138 if (value)
1139 ieee80211_key_enable_hwaccel(local,
1140 sdata->keys[i]);
1141 else
1142 ieee80211_key_disable_hwaccel(local,
1143 sdata->keys[i]);
1144 read_unlock(&local->sub_if_lock);
1145
1146 return 0;
1147 }
1148
1149
1150 void ieee80211_update_default_wep_only(struct ieee80211_local *local)
1151 {
1152 int i = 0;
1153 struct ieee80211_sub_if_data *sdata;
1154
1155 read_lock(&local->sub_if_lock);
1156 list_for_each_entry(sdata, &local->sub_if_list, list) {
1157
1158 if (sdata->dev == local->mdev)
1159 continue;
1160
1161 /* If there is an AP interface then depend on userspace to
1162 set default_wep_only correctly. */
1163 if (sdata->type == IEEE80211_IF_TYPE_AP) {
1164 read_unlock(&local->sub_if_lock);
1165 return;
1166 }
1167
1168 i++;
1169 }
1170
1171 read_unlock(&local->sub_if_lock);
1172
1173 if (i <= 1)
1174 ieee80211_ioctl_default_wep_only(local, 1);
1175 else
1176 ieee80211_ioctl_default_wep_only(local, 0);
1177 }
1178
1179
1180 static int ieee80211_ioctl_prism2_param(struct net_device *dev,
1181 struct iw_request_info *info,
1182 void *wrqu, char *extra)
1183 {
1184 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1185 struct ieee80211_sub_if_data *sdata;
1186 int *i = (int *) extra;
1187 int param = *i;
1188 int value = *(i + 1);
1189 int ret = 0;
1190
1191 if (!capable(CAP_NET_ADMIN))
1192 return -EPERM;
1193
1194 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1195
1196 switch (param) {
1197 case PRISM2_PARAM_IEEE_802_1X:
1198 if (local->ops->set_ieee8021x)
1199 ret = local->ops->set_ieee8021x(local_to_hw(local),
1200 value);
1201 if (ret)
1202 printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) "
1203 "for low-level driver\n", dev->name, value);
1204 else
1205 sdata->ieee802_1x = value;
1206 break;
1207
1208 case PRISM2_PARAM_ANTSEL_TX:
1209 local->hw.conf.antenna_sel_tx = value;
1210 if (ieee80211_hw_config(local))
1211 ret = -EINVAL;
1212 break;
1213
1214 case PRISM2_PARAM_ANTSEL_RX:
1215 local->hw.conf.antenna_sel_rx = value;
1216 if (ieee80211_hw_config(local))
1217 ret = -EINVAL;
1218 break;
1219
1220 case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1221 local->cts_protect_erp_frames = value;
1222 break;
1223
1224 case PRISM2_PARAM_DROP_UNENCRYPTED:
1225 sdata->drop_unencrypted = value;
1226 break;
1227
1228 case PRISM2_PARAM_PREAMBLE:
1229 local->short_preamble = value;
1230 break;
1231
1232 case PRISM2_PARAM_STAT_TIME:
1233 if (!local->stat_time && value) {
1234 local->stat_timer.expires = jiffies + HZ * value / 100;
1235 add_timer(&local->stat_timer);
1236 } else if (local->stat_time && !value) {
1237 del_timer_sync(&local->stat_timer);
1238 }
1239 local->stat_time = value;
1240 break;
1241 case PRISM2_PARAM_SHORT_SLOT_TIME:
1242 if (value)
1243 local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
1244 else
1245 local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME;
1246 if (ieee80211_hw_config(local))
1247 ret = -EINVAL;
1248 break;
1249
1250 case PRISM2_PARAM_NEXT_MODE:
1251 local->next_mode = value;
1252 break;
1253
1254 case PRISM2_PARAM_CLEAR_KEYS:
1255 ret = ieee80211_ioctl_clear_keys(dev);
1256 break;
1257
1258 case PRISM2_PARAM_RADIO_ENABLED:
1259 ret = ieee80211_ioctl_set_radio_enabled(dev, value);
1260 break;
1261
1262 case PRISM2_PARAM_ANTENNA_MODE:
1263 local->hw.conf.antenna_mode = value;
1264 if (ieee80211_hw_config(local))
1265 ret = -EINVAL;
1266 break;
1267
1268 case PRISM2_PARAM_STA_ANTENNA_SEL:
1269 local->sta_antenna_sel = value;
1270 break;
1271
1272 case PRISM2_PARAM_FORCE_UNICAST_RATE:
1273 ret = ieee80211_ioctl_force_unicast_rate(dev, sdata, value);
1274 break;
1275
1276 case PRISM2_PARAM_MAX_RATECTRL_RATE:
1277 ret = ieee80211_ioctl_max_ratectrl_rate(dev, sdata, value);
1278 break;
1279
1280 case PRISM2_PARAM_RATE_CTRL_NUM_UP:
1281 local->rate_ctrl_num_up = value;
1282 break;
1283
1284 case PRISM2_PARAM_RATE_CTRL_NUM_DOWN:
1285 local->rate_ctrl_num_down = value;
1286 break;
1287
1288 case PRISM2_PARAM_TX_POWER_REDUCTION:
1289 if (value < 0)
1290 ret = -EINVAL;
1291 else
1292 local->hw.conf.tx_power_reduction = value;
1293 break;
1294
1295 case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
1296 local->key_tx_rx_threshold = value;
1297 break;
1298
1299 case PRISM2_PARAM_DEFAULT_WEP_ONLY:
1300 ret = ieee80211_ioctl_default_wep_only(local, value);
1301 break;
1302
1303 case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1304 local->wifi_wme_noack_test = value;
1305 break;
1306
1307 case PRISM2_PARAM_SCAN_FLAGS:
1308 local->scan_flags = value;
1309 break;
1310
1311 case PRISM2_PARAM_MIXED_CELL:
1312 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1313 sdata->type != IEEE80211_IF_TYPE_IBSS)
1314 ret = -EINVAL;
1315 else
1316 sdata->u.sta.mixed_cell = !!value;
1317 break;
1318
1319 case PRISM2_PARAM_HW_MODES:
1320 local->enabled_modes = value;
1321 break;
1322
1323 case PRISM2_PARAM_CREATE_IBSS:
1324 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1325 ret = -EINVAL;
1326 else
1327 sdata->u.sta.create_ibss = !!value;
1328 break;
1329 case PRISM2_PARAM_WMM_ENABLED:
1330 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1331 sdata->type != IEEE80211_IF_TYPE_IBSS)
1332 ret = -EINVAL;
1333 else
1334 sdata->u.sta.wmm_enabled = !!value;
1335 break;
1336 case PRISM2_PARAM_RADAR_DETECT:
1337 local->hw.conf.radar_detect = value;
1338 break;
1339 case PRISM2_PARAM_SPECTRUM_MGMT:
1340 local->hw.conf.spect_mgmt = value;
1341 break;
1342 default:
1343 ret = -EOPNOTSUPP;
1344 break;
1345 }
1346
1347 return ret;
1348 }
1349
1350
1351 static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
1352 struct iw_request_info *info,
1353 void *wrqu, char *extra)
1354 {
1355 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1356 struct ieee80211_sub_if_data *sdata;
1357 int *param = (int *) extra;
1358 int ret = 0;
1359
1360 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1361
1362 switch (*param) {
1363 case PRISM2_PARAM_IEEE_802_1X:
1364 *param = sdata->ieee802_1x;
1365 break;
1366
1367 case PRISM2_PARAM_ANTSEL_TX:
1368 *param = local->hw.conf.antenna_sel_tx;
1369 break;
1370
1371 case PRISM2_PARAM_ANTSEL_RX:
1372 *param = local->hw.conf.antenna_sel_rx;
1373 break;
1374
1375 case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1376 *param = local->cts_protect_erp_frames;
1377 break;
1378
1379 case PRISM2_PARAM_DROP_UNENCRYPTED:
1380 *param = sdata->drop_unencrypted;
1381 break;
1382
1383 case PRISM2_PARAM_PREAMBLE:
1384 *param = local->short_preamble;
1385 break;
1386
1387 case PRISM2_PARAM_STAT_TIME:
1388 *param = local->stat_time;
1389 break;
1390 case PRISM2_PARAM_SHORT_SLOT_TIME:
1391 *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
1392 break;
1393
1394 case PRISM2_PARAM_NEXT_MODE:
1395 *param = local->next_mode;
1396 break;
1397
1398 case PRISM2_PARAM_ANTENNA_MODE:
1399 *param = local->hw.conf.antenna_mode;
1400 break;
1401
1402 case PRISM2_PARAM_STA_ANTENNA_SEL:
1403 *param = local->sta_antenna_sel;
1404 break;
1405
1406 case PRISM2_PARAM_RATE_CTRL_NUM_UP:
1407 *param = local->rate_ctrl_num_up;
1408 break;
1409
1410 case PRISM2_PARAM_RATE_CTRL_NUM_DOWN:
1411 *param = local->rate_ctrl_num_down;
1412 break;
1413
1414 case PRISM2_PARAM_TX_POWER_REDUCTION:
1415 *param = local->hw.conf.tx_power_reduction;
1416 break;
1417
1418 case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
1419 *param = local->key_tx_rx_threshold;
1420 break;
1421
1422 case PRISM2_PARAM_DEFAULT_WEP_ONLY:
1423 *param = local->default_wep_only;
1424 break;
1425
1426 case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1427 *param = local->wifi_wme_noack_test;
1428 break;
1429
1430 case PRISM2_PARAM_SCAN_FLAGS:
1431 *param = local->scan_flags;
1432 break;
1433
1434 case PRISM2_PARAM_HW_MODES:
1435 *param = local->enabled_modes;
1436 break;
1437
1438 case PRISM2_PARAM_CREATE_IBSS:
1439 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1440 ret = -EINVAL;
1441 else
1442 *param = !!sdata->u.sta.create_ibss;
1443 break;
1444
1445 case PRISM2_PARAM_MIXED_CELL:
1446 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1447 sdata->type != IEEE80211_IF_TYPE_IBSS)
1448 ret = -EINVAL;
1449 else
1450 *param = !!sdata->u.sta.mixed_cell;
1451 break;
1452 case PRISM2_PARAM_WMM_ENABLED:
1453 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1454 sdata->type != IEEE80211_IF_TYPE_IBSS)
1455 ret = -EINVAL;
1456 else
1457 *param = !!sdata->u.sta.wmm_enabled;
1458 break;
1459 default:
1460 ret = -EOPNOTSUPP;
1461 break;
1462 }
1463
1464 return ret;
1465 }
1466
1467 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
1468 struct iw_request_info *info,
1469 struct iw_point *data, char *extra)
1470 {
1471 struct ieee80211_sub_if_data *sdata;
1472 struct iw_mlme *mlme = (struct iw_mlme *) extra;
1473
1474 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1475 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1476 sdata->type != IEEE80211_IF_TYPE_IBSS)
1477 return -EINVAL;
1478
1479 switch (mlme->cmd) {
1480 case IW_MLME_DEAUTH:
1481 /* TODO: mlme->addr.sa_data */
1482 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
1483 case IW_MLME_DISASSOC:
1484 /* TODO: mlme->addr.sa_data */
1485 return ieee80211_sta_disassociate(dev, mlme->reason_code);
1486 default:
1487 return -EOPNOTSUPP;
1488 }
1489 }
1490
1491
1492 static int ieee80211_ioctl_siwencode(struct net_device *dev,
1493 struct iw_request_info *info,
1494 struct iw_point *erq, char *keybuf)
1495 {
1496 struct ieee80211_sub_if_data *sdata;
1497 int idx, i, alg = ALG_WEP;
1498 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1499
1500 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1501
1502 idx = erq->flags & IW_ENCODE_INDEX;
1503 if (idx == 0) {
1504 if (sdata->default_key)
1505 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1506 if (sdata->default_key == sdata->keys[i]) {
1507 idx = i;
1508 break;
1509 }
1510 }
1511 } else if (idx < 1 || idx > 4)
1512 return -EINVAL;
1513 else
1514 idx--;
1515
1516 if (erq->flags & IW_ENCODE_DISABLED)
1517 alg = ALG_NONE;
1518 else if (erq->length == 0) {
1519 /* No key data - just set the default TX key index */
1520 if (sdata->default_key != sdata->keys[idx]) {
1521 ieee80211_debugfs_key_remove_default(sdata);
1522 sdata->default_key = sdata->keys[idx];
1523 if (sdata->default_key)
1524 ieee80211_debugfs_key_add_default(sdata);
1525 }
1526 return 0;
1527 }
1528
1529 return ieee80211_set_encryption(
1530 dev, bcaddr,
1531 idx, alg,
1532 !sdata->default_key,
1533 keybuf, erq->length);
1534 }
1535
1536
1537 static int ieee80211_ioctl_giwencode(struct net_device *dev,
1538 struct iw_request_info *info,
1539 struct iw_point *erq, char *key)
1540 {
1541 struct ieee80211_sub_if_data *sdata;
1542 int idx, i;
1543
1544 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1545
1546 idx = erq->flags & IW_ENCODE_INDEX;
1547 if (idx < 1 || idx > 4) {
1548 idx = -1;
1549 if (!sdata->default_key)
1550 idx = 0;
1551 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1552 if (sdata->default_key == sdata->keys[i]) {
1553 idx = i;
1554 break;
1555 }
1556 }
1557 if (idx < 0)
1558 return -EINVAL;
1559 } else
1560 idx--;
1561
1562 erq->flags = idx + 1;
1563
1564 if (!sdata->keys[idx]) {
1565 erq->length = 0;
1566 erq->flags |= IW_ENCODE_DISABLED;
1567 return 0;
1568 }
1569
1570 memcpy(key, sdata->keys[idx]->key,
1571 min((int)erq->length, sdata->keys[idx]->keylen));
1572 erq->length = sdata->keys[idx]->keylen;
1573 erq->flags |= IW_ENCODE_ENABLED;
1574
1575 return 0;
1576 }
1577
1578 static int ieee80211_ioctl_siwauth(struct net_device *dev,
1579 struct iw_request_info *info,
1580 struct iw_param *data, char *extra)
1581 {
1582 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1583 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1584 int ret = 0;
1585
1586 switch (data->flags & IW_AUTH_INDEX) {
1587 case IW_AUTH_WPA_VERSION:
1588 case IW_AUTH_CIPHER_PAIRWISE:
1589 case IW_AUTH_CIPHER_GROUP:
1590 case IW_AUTH_WPA_ENABLED:
1591 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1592 break;
1593 case IW_AUTH_KEY_MGMT:
1594 if (sdata->type != IEEE80211_IF_TYPE_STA)
1595 ret = -EINVAL;
1596 else {
1597 /*
1598 * TODO: sdata->u.sta.key_mgmt does not match with WE18
1599 * value completely; could consider modifying this to
1600 * be closer to WE18. For now, this value is not really
1601 * used for anything else than Privacy matching, so the
1602 * current code here should be more or less OK.
1603 */
1604 if (data->value & IW_AUTH_KEY_MGMT_802_1X) {
1605 sdata->u.sta.key_mgmt =
1606 IEEE80211_KEY_MGMT_WPA_EAP;
1607 } else if (data->value & IW_AUTH_KEY_MGMT_PSK) {
1608 sdata->u.sta.key_mgmt =
1609 IEEE80211_KEY_MGMT_WPA_PSK;
1610 } else {
1611 sdata->u.sta.key_mgmt =
1612 IEEE80211_KEY_MGMT_NONE;
1613 }
1614 }
1615 break;
1616 case IW_AUTH_80211_AUTH_ALG:
1617 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1618 sdata->type == IEEE80211_IF_TYPE_IBSS)
1619 sdata->u.sta.auth_algs = data->value;
1620 else
1621 ret = -EOPNOTSUPP;
1622 break;
1623 case IW_AUTH_PRIVACY_INVOKED:
1624 if (local->ops->set_privacy_invoked)
1625 ret = local->ops->set_privacy_invoked(
1626 local_to_hw(local), data->value);
1627 break;
1628 default:
1629 ret = -EOPNOTSUPP;
1630 break;
1631 }
1632 return ret;
1633 }
1634
1635 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1636 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
1637 {
1638 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1639 struct iw_statistics *wstats = &local->wstats;
1640 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1641 struct sta_info *sta = NULL;
1642
1643 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1644 sdata->type == IEEE80211_IF_TYPE_IBSS)
1645 sta = sta_info_get(local, sdata->u.sta.bssid);
1646 if (!sta) {
1647 wstats->discard.fragment = 0;
1648 wstats->discard.misc = 0;
1649 wstats->qual.qual = 0;
1650 wstats->qual.level = 0;
1651 wstats->qual.noise = 0;
1652 wstats->qual.updated = IW_QUAL_ALL_INVALID;
1653 } else {
1654 wstats->qual.level = sta->last_rssi;
1655 wstats->qual.qual = sta->last_signal;
1656 wstats->qual.noise = sta->last_noise;
1657 wstats->qual.updated = local->wstats_flags;
1658 sta_info_put(sta);
1659 }
1660 return wstats;
1661 }
1662
1663 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1664 struct iw_request_info *info,
1665 struct iw_param *data, char *extra)
1666 {
1667 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1668 int ret = 0;
1669
1670 switch (data->flags & IW_AUTH_INDEX) {
1671 case IW_AUTH_80211_AUTH_ALG:
1672 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1673 sdata->type == IEEE80211_IF_TYPE_IBSS)
1674 data->value = sdata->u.sta.auth_algs;
1675 else
1676 ret = -EOPNOTSUPP;
1677 break;
1678 default:
1679 ret = -EOPNOTSUPP;
1680 break;
1681 }
1682 return ret;
1683 }
1684
1685
1686 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1687 struct iw_request_info *info,
1688 struct iw_point *erq, char *extra)
1689 {
1690 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1691 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1692 int alg, idx, i;
1693
1694 switch (ext->alg) {
1695 case IW_ENCODE_ALG_NONE:
1696 alg = ALG_NONE;
1697 break;
1698 case IW_ENCODE_ALG_WEP:
1699 alg = ALG_WEP;
1700 break;
1701 case IW_ENCODE_ALG_TKIP:
1702 alg = ALG_TKIP;
1703 break;
1704 case IW_ENCODE_ALG_CCMP:
1705 alg = ALG_CCMP;
1706 break;
1707 default:
1708 return -EOPNOTSUPP;
1709 }
1710
1711 if (erq->flags & IW_ENCODE_DISABLED)
1712 alg = ALG_NONE;
1713
1714 idx = erq->flags & IW_ENCODE_INDEX;
1715 if (idx < 1 || idx > 4) {
1716 idx = -1;
1717 if (!sdata->default_key)
1718 idx = 0;
1719 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1720 if (sdata->default_key == sdata->keys[i]) {
1721 idx = i;
1722 break;
1723 }
1724 }
1725 if (idx < 0)
1726 return -EINVAL;
1727 } else
1728 idx--;
1729
1730 return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1731 ext->ext_flags &
1732 IW_ENCODE_EXT_SET_TX_KEY,
1733 ext->key, ext->key_len);
1734 }
1735
1736
1737 static const struct iw_priv_args ieee80211_ioctl_priv[] = {
1738 { PRISM2_IOCTL_PRISM2_PARAM,
1739 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
1740 { PRISM2_IOCTL_GET_PRISM2_PARAM,
1741 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1742 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
1743 };
1744
1745 /* Structures to export the Wireless Handlers */
1746
1747 static const iw_handler ieee80211_handler[] =
1748 {
1749 (iw_handler) NULL, /* SIOCSIWCOMMIT */
1750 (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
1751 (iw_handler) NULL, /* SIOCSIWNWID */
1752 (iw_handler) NULL, /* SIOCGIWNWID */
1753 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
1754 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
1755 (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
1756 (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
1757 (iw_handler) NULL, /* SIOCSIWSENS */
1758 (iw_handler) NULL, /* SIOCGIWSENS */
1759 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
1760 (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
1761 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
1762 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
1763 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
1764 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
1765 iw_handler_set_spy, /* SIOCSIWSPY */
1766 iw_handler_get_spy, /* SIOCGIWSPY */
1767 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
1768 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
1769 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
1770 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
1771 (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
1772 (iw_handler) NULL, /* SIOCGIWAPLIST */
1773 (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
1774 (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
1775 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
1776 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
1777 (iw_handler) NULL, /* SIOCSIWNICKN */
1778 (iw_handler) NULL, /* SIOCGIWNICKN */
1779 (iw_handler) NULL, /* -- hole -- */
1780 (iw_handler) NULL, /* -- hole -- */
1781 (iw_handler) NULL, /* SIOCSIWRATE */
1782 (iw_handler) NULL, /* SIOCGIWRATE */
1783 (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
1784 (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
1785 (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
1786 (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
1787 (iw_handler) NULL, /* SIOCSIWTXPOW */
1788 (iw_handler) NULL, /* SIOCGIWTXPOW */
1789 (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
1790 (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
1791 (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
1792 (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
1793 (iw_handler) NULL, /* SIOCSIWPOWER */
1794 (iw_handler) NULL, /* SIOCGIWPOWER */
1795 (iw_handler) NULL, /* -- hole -- */
1796 (iw_handler) NULL, /* -- hole -- */
1797 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
1798 (iw_handler) NULL, /* SIOCGIWGENIE */
1799 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
1800 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
1801 (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
1802 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
1803 (iw_handler) NULL, /* SIOCSIWPMKSA */
1804 (iw_handler) NULL, /* -- hole -- */
1805 };
1806
1807 static const iw_handler ieee80211_private_handler[] =
1808 { /* SIOCIWFIRSTPRIV + */
1809 (iw_handler) ieee80211_ioctl_prism2_param, /* 0 */
1810 (iw_handler) ieee80211_ioctl_get_prism2_param, /* 1 */
1811 };
1812
1813 const struct iw_handler_def ieee80211_iw_handler_def =
1814 {
1815 .num_standard = ARRAY_SIZE(ieee80211_handler),
1816 .num_private = ARRAY_SIZE(ieee80211_private_handler),
1817 .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv),
1818 .standard = (iw_handler *) ieee80211_handler,
1819 .private = (iw_handler *) ieee80211_private_handler,
1820 .private_args = (struct iw_priv_args *) ieee80211_ioctl_priv,
1821 .get_wireless_stats = ieee80211_get_wireless_stats,
1822 };
Support for the Chinese Samsung S3C2440 based development boards