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Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
[linux-2.6-block.git] / net / wireless / wext-compat.c
CommitLineData
fee52678
JB		 1/*
2 * cfg80211 - wext compat code
3 *
4 * This is temporary code until all wireless functionality is migrated
5 * into cfg80211, when that happens all the exports here go away and
6 * we directly assign the wireless handlers of wireless interfaces.
7 *
08645126 8 * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net>
fee52678
JB		 9 */
10
bc3b2d7f 11#include <linux/export.h>
fee52678
JB		 12#include <linux/wireless.h>
13#include <linux/nl80211.h>
691597cb 14#include <linux/if_arp.h>
08645126 15#include <linux/etherdevice.h>
5a0e3ad6 16#include <linux/slab.h>
fee52678 17#include <net/iw_handler.h>
fee52678 18#include <net/cfg80211.h>
262eb9b2 19#include <net/cfg80211-wext.h>
0e82ffe3 20#include "wext-compat.h"
fee52678 21#include "core.h"
e35e4d28 22#include "rdev-ops.h"
fee52678
JB		 23
24int cfg80211_wext_giwname(struct net_device *dev,
25 struct iw_request_info *info,
26 char *name, char *extra)
27{
fee52678 28 strcpy(name, "IEEE 802.11");
fee52678
JB		 29 return 0;
30}
2afe38d1 31EXPORT_WEXT_HANDLER(cfg80211_wext_giwname);
e60c7744
JB		 32
33int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
34 u32 *mode, char *extra)
35{
36 struct wireless_dev *wdev = dev->ieee80211_ptr;
37 struct cfg80211_registered_device *rdev;
38 struct vif_params vifparams;
39 enum nl80211_iftype type;
40
f26cbf40 41 rdev = wiphy_to_rdev(wdev->wiphy);
e60c7744 42
e60c7744
JB		 43 switch (*mode) {
44 case IW_MODE_INFRA:
45 type = NL80211_IFTYPE_STATION;
46 break;
47 case IW_MODE_ADHOC:
48 type = NL80211_IFTYPE_ADHOC;
49 break;
50 case IW_MODE_REPEAT:
51 type = NL80211_IFTYPE_WDS;
52 break;
53 case IW_MODE_MONITOR:
54 type = NL80211_IFTYPE_MONITOR;
55 break;
56 default:
57 return -EINVAL;
58 }
59
ac7f9cfa
JB		 60 if (type == wdev->iftype)
61 return 0;
62
e60c7744
JB		 63 memset(&vifparams, 0, sizeof(vifparams));
64
5fe231e8 65 return cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
e60c7744 66}
2afe38d1 67EXPORT_WEXT_HANDLER(cfg80211_wext_siwmode);
e60c7744
JB		 68
69int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
70 u32 *mode, char *extra)
71{
72 struct wireless_dev *wdev = dev->ieee80211_ptr;
73
74 if (!wdev)
75 return -EOPNOTSUPP;
76
77 switch (wdev->iftype) {
78 case NL80211_IFTYPE_AP:
79 *mode = IW_MODE_MASTER;
80 break;
81 case NL80211_IFTYPE_STATION:
82 *mode = IW_MODE_INFRA;
83 break;
84 case NL80211_IFTYPE_ADHOC:
85 *mode = IW_MODE_ADHOC;
86 break;
87 case NL80211_IFTYPE_MONITOR:
88 *mode = IW_MODE_MONITOR;
89 break;
90 case NL80211_IFTYPE_WDS:
91 *mode = IW_MODE_REPEAT;
92 break;
93 case NL80211_IFTYPE_AP_VLAN:
94 *mode = IW_MODE_SECOND; /* FIXME */
95 break;
96 default:
97 *mode = IW_MODE_AUTO;
98 break;
99 }
100 return 0;
101}
2afe38d1 102EXPORT_WEXT_HANDLER(cfg80211_wext_giwmode);
4aa188e1
JB		 103
104
105int cfg80211_wext_giwrange(struct net_device *dev,
106 struct iw_request_info *info,
107 struct iw_point *data, char *extra)
108{
109 struct wireless_dev *wdev = dev->ieee80211_ptr;
110 struct iw_range *range = (struct iw_range *) extra;
57fbcce3 111 enum nl80211_band band;
9834c079 112 int i, c = 0;
4aa188e1
JB		 113
114 if (!wdev)
115 return -EOPNOTSUPP;
116
117 data->length = sizeof(struct iw_range);
118 memset(range, 0, sizeof(struct iw_range));
119
120 range->we_version_compiled = WIRELESS_EXT;
121 range->we_version_source = 21;
122 range->retry_capa = IW_RETRY_LIMIT;
123 range->retry_flags = IW_RETRY_LIMIT;
124 range->min_retry = 0;
125 range->max_retry = 255;
126 range->min_rts = 0;
127 range->max_rts = 2347;
128 range->min_frag = 256;
129 range->max_frag = 2346;
130
4aa188e1
JB		 131 range->max_encoding_tokens = 4;
132
133 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
134
135 switch (wdev->wiphy->signal_type) {
136 case CFG80211_SIGNAL_TYPE_NONE:
137 break;
138 case CFG80211_SIGNAL_TYPE_MBM:
e7d83ed8 139 range->max_qual.level = (u8)-110;
4aa188e1
JB		 140 range->max_qual.qual = 70;
141 range->avg_qual.qual = 35;
142 range->max_qual.updated |= IW_QUAL_DBM;
143 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
144 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
145 break;
146 case CFG80211_SIGNAL_TYPE_UNSPEC:
147 range->max_qual.level = 100;
148 range->max_qual.qual = 100;
149 range->avg_qual.qual = 50;
150 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
151 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
152 break;
153 }
154
155 range->avg_qual.level = range->max_qual.level / 2;
156 range->avg_qual.noise = range->max_qual.noise / 2;
157 range->avg_qual.updated = range->max_qual.updated;
158
9834c079
JB		 159 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
160 switch (wdev->wiphy->cipher_suites[i]) {
3daf0975 161 case WLAN_CIPHER_SUITE_TKIP:
27bea66c
DK		 162 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
163 IW_ENC_CAPA_WPA);
3daf0975
DK		 164 break;
165
166 case WLAN_CIPHER_SUITE_CCMP:
27bea66c
DK		 167 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
168 IW_ENC_CAPA_WPA2);
3daf0975 169 break;
2ab658f9
DK		 170
171 case WLAN_CIPHER_SUITE_WEP40:
172 range->encoding_size[range->num_encoding_sizes++] =
173 WLAN_KEY_LEN_WEP40;
174 break;
175
176 case WLAN_CIPHER_SUITE_WEP104:
177 range->encoding_size[range->num_encoding_sizes++] =
178 WLAN_KEY_LEN_WEP104;
179 break;
3daf0975
DK		 180 }
181 }
4aa188e1 182
57fbcce3 183 for (band = 0; band < NUM_NL80211_BANDS; band ++) {
4aa188e1
JB		 184 struct ieee80211_supported_band *sband;
185
186 sband = wdev->wiphy->bands[band];
187
188 if (!sband)
189 continue;
190
191 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
192 struct ieee80211_channel *chan = &sband->channels[i];
193
194 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
195 range->freq[c].i =
196 ieee80211_frequency_to_channel(
197 chan->center_freq);
198 range->freq[c].m = chan->center_freq;
199 range->freq[c].e = 6;
200 c++;
201 }
202 }
203 }
204 range->num_channels = c;
205 range->num_frequency = c;
206
207 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
208 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
209 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
210
51cd4aab
DK		 211 if (wdev->wiphy->max_scan_ssids > 0)
212 range->scan_capa |= IW_SCAN_CAPA_ESSID;
4aa188e1
JB		 213
214 return 0;
215}
2afe38d1 216EXPORT_WEXT_HANDLER(cfg80211_wext_giwrange);
691597cb 217
04a773ad
JB		 218
219/**
220 * cfg80211_wext_freq - get wext frequency for non-"auto"
96998e3a 221 * @dev: the net device
04a773ad
JB		 222 * @freq: the wext freq encoding
223 *
59bbb6f7 224 * Returns a frequency, or a negative error code, or 0 for auto.
04a773ad 225 */
96998e3a 226int cfg80211_wext_freq(struct iw_freq *freq)
04a773ad 227{
0b258582 228 /*
59bbb6f7 229 * Parse frequency - return 0 for auto and
0b258582
JB		 230 * -EINVAL for impossible things.
231 */
04a773ad 232 if (freq->e == 0) {
57fbcce3 233 enum nl80211_band band = NL80211_BAND_2GHZ;
04a773ad 234 if (freq->m < 0)
59bbb6f7 235 return 0;
59eb21a6 236 if (freq->m > 14)
57fbcce3 237 band = NL80211_BAND_5GHZ;
59eb21a6 238 return ieee80211_channel_to_frequency(freq->m, band);
04a773ad
JB		 239 } else {
240 int i, div = 1000000;
241 for (i = 0; i < freq->e; i++)
242 div /= 10;
0b258582 243 if (div <= 0)
59bbb6f7
JB		 244 return -EINVAL;
245 return freq->m / div;
04a773ad 246 }
04a773ad 247}
b9a5f8ca
JM		 248
249int cfg80211_wext_siwrts(struct net_device *dev,
250 struct iw_request_info *info,
251 struct iw_param *rts, char *extra)
252{
253 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 254 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
b9a5f8ca
JM		 255 u32 orts = wdev->wiphy->rts_threshold;
256 int err;
257
258 if (rts->disabled || !rts->fixed)
259 wdev->wiphy->rts_threshold = (u32) -1;
260 else if (rts->value < 0)
261 return -EINVAL;
262 else
263 wdev->wiphy->rts_threshold = rts->value;
264
e35e4d28 265 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
b9a5f8ca
JM		 266 if (err)
267 wdev->wiphy->rts_threshold = orts;
268
269 return err;
270}
2afe38d1 271EXPORT_WEXT_HANDLER(cfg80211_wext_siwrts);
b9a5f8ca
JM		 272
273int cfg80211_wext_giwrts(struct net_device *dev,
274 struct iw_request_info *info,
275 struct iw_param *rts, char *extra)
276{
277 struct wireless_dev *wdev = dev->ieee80211_ptr;
278
279 rts->value = wdev->wiphy->rts_threshold;
280 rts->disabled = rts->value == (u32) -1;
281 rts->fixed = 1;
282
283 return 0;
284}
2afe38d1 285EXPORT_WEXT_HANDLER(cfg80211_wext_giwrts);
b9a5f8ca
JM		 286
287int cfg80211_wext_siwfrag(struct net_device *dev,
288 struct iw_request_info *info,
289 struct iw_param *frag, char *extra)
290{
291 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 292 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
b9a5f8ca
JM		 293 u32 ofrag = wdev->wiphy->frag_threshold;
294 int err;
295
296 if (frag->disabled || !frag->fixed)
297 wdev->wiphy->frag_threshold = (u32) -1;
298 else if (frag->value < 256)
299 return -EINVAL;
300 else {
301 /* Fragment length must be even, so strip LSB. */
302 wdev->wiphy->frag_threshold = frag->value & ~0x1;
303 }
304
e35e4d28 305 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD);
b9a5f8ca
JM		 306 if (err)
307 wdev->wiphy->frag_threshold = ofrag;
308
309 return err;
310}
2afe38d1 311EXPORT_WEXT_HANDLER(cfg80211_wext_siwfrag);
b9a5f8ca
JM		 312
313int cfg80211_wext_giwfrag(struct net_device *dev,
314 struct iw_request_info *info,
315 struct iw_param *frag, char *extra)
316{
317 struct wireless_dev *wdev = dev->ieee80211_ptr;
318
319 frag->value = wdev->wiphy->frag_threshold;
320 frag->disabled = frag->value == (u32) -1;
321 frag->fixed = 1;
322
323 return 0;
324}
2afe38d1 325EXPORT_WEXT_HANDLER(cfg80211_wext_giwfrag);
b9a5f8ca 326
04b0c5c6
JB		 327static int cfg80211_wext_siwretry(struct net_device *dev,
328 struct iw_request_info *info,
329 struct iw_param *retry, char *extra)
b9a5f8ca
JM		 330{
331 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 332 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
b9a5f8ca
JM		 333 u32 changed = 0;
334 u8 olong = wdev->wiphy->retry_long;
335 u8 oshort = wdev->wiphy->retry_short;
336 int err;
337
f5aa0d21 338 if (retry->disabled || retry->value < 1 || retry->value > 255 ||
b9a5f8ca
JM		 339 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
340 return -EINVAL;
341
342 if (retry->flags & IW_RETRY_LONG) {
343 wdev->wiphy->retry_long = retry->value;
344 changed |= WIPHY_PARAM_RETRY_LONG;
345 } else if (retry->flags & IW_RETRY_SHORT) {
346 wdev->wiphy->retry_short = retry->value;
347 changed |= WIPHY_PARAM_RETRY_SHORT;
348 } else {
349 wdev->wiphy->retry_short = retry->value;
350 wdev->wiphy->retry_long = retry->value;
351 changed |= WIPHY_PARAM_RETRY_LONG;
352 changed |= WIPHY_PARAM_RETRY_SHORT;
353 }
354
355 if (!changed)
356 return 0;
357
e35e4d28 358 err = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 359 if (err) {
360 wdev->wiphy->retry_short = oshort;
361 wdev->wiphy->retry_long = olong;
362 }
363
364 return err;
365}
b9a5f8ca
JM		 366
367int cfg80211_wext_giwretry(struct net_device *dev,
368 struct iw_request_info *info,
369 struct iw_param *retry, char *extra)
370{
371 struct wireless_dev *wdev = dev->ieee80211_ptr;
372
373 retry->disabled = 0;
374
375 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
376 /*
377 * First return short value, iwconfig will ask long value
378 * later if needed
379 */
60a4fe0a 380 retry->flags |= IW_RETRY_LIMIT | IW_RETRY_SHORT;
b9a5f8ca 381 retry->value = wdev->wiphy->retry_short;
60a4fe0a 382 if (wdev->wiphy->retry_long == wdev->wiphy->retry_short)
b9a5f8ca
JM		 383 retry->flags |= IW_RETRY_LONG;
384
385 return 0;
386 }
387
388 if (retry->flags & IW_RETRY_LONG) {
389 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
390 retry->value = wdev->wiphy->retry_long;
391 }
392
393 return 0;
394}
2afe38d1 395EXPORT_WEXT_HANDLER(cfg80211_wext_giwretry);
08645126 396
fffd0934 397static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
e31b8213
JB		 398 struct net_device *dev, bool pairwise,
399 const u8 *addr, bool remove, bool tx_key,
400 int idx, struct key_params *params)
08645126
JB		 401{
402 struct wireless_dev *wdev = dev->ieee80211_ptr;
fffd0934 403 int err, i;
98d3a7ca 404 bool rejoin = false;
fffd0934 405
e31b8213
JB		 406 if (pairwise && !addr)
407 return -EINVAL;
408
fffd0934
JB		 409 if (!wdev->wext.keys) {
410 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
411 GFP_KERNEL);
412 if (!wdev->wext.keys)
413 return -ENOMEM;
414 for (i = 0; i < 6; i++)
415 wdev->wext.keys->params[i].key =
416 wdev->wext.keys->data[i];
417 }
418
419 if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
420 wdev->iftype != NL80211_IFTYPE_STATION)
421 return -EOPNOTSUPP;
08645126
JB		 422
423 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
fffd0934
JB		 424 if (!wdev->current_bss)
425 return -ENOLINK;
426
08645126
JB		 427 if (!rdev->ops->set_default_mgmt_key)
428 return -EOPNOTSUPP;
429
430 if (idx < 4 || idx > 5)
431 return -EINVAL;
432 } else if (idx < 0 || idx > 3)
433 return -EINVAL;
434
435 if (remove) {
fffd0934 436 err = 0;
98d3a7ca
JB		 437 if (wdev->current_bss) {
438 /*
439 * If removing the current TX key, we will need to
440 * join a new IBSS without the privacy bit clear.
441 */
442 if (idx == wdev->wext.default_key &&
443 wdev->iftype == NL80211_IFTYPE_ADHOC) {
444 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
445 rejoin = true;
446 }
e31b8213
JB		 447
448 if (!pairwise && addr &&
449 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
450 err = -ENOENT;
451 else
e35e4d28
HG		 452 err = rdev_del_key(rdev, dev, idx, pairwise,
453 addr);
98d3a7ca 454 }
d55fb891 455 wdev->wext.connect.privacy = false;
98d3a7ca
JB		 456 /*
457 * Applications using wireless extensions expect to be
458 * able to delete keys that don't exist, so allow that.
459 */
460 if (err == -ENOENT)
461 err = 0;
08645126 462 if (!err) {
fffd0934 463 if (!addr) {
538c9eb8
JB		 464 memset(wdev->wext.keys->data[idx], 0,
465 sizeof(wdev->wext.keys->data[idx]));
fffd0934
JB		 466 wdev->wext.keys->params[idx].key_len = 0;
467 wdev->wext.keys->params[idx].cipher = 0;
468 }
08645126
JB		 469 if (idx == wdev->wext.default_key)
470 wdev->wext.default_key = -1;
471 else if (idx == wdev->wext.default_mgmt_key)
472 wdev->wext.default_mgmt_key = -1;
473 }
98d3a7ca
JB		 474
475 if (!err && rejoin)
476 err = cfg80211_ibss_wext_join(rdev, wdev);
e3da574a 477
08645126 478 return err;
fffd0934 479 }
08645126 480
fffd0934
JB		 481 if (addr)
482 tx_key = false;
483
e31b8213 484 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
fffd0934 485 return -EINVAL;
08645126 486
fffd0934
JB		 487 err = 0;
488 if (wdev->current_bss)
e35e4d28 489 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params);
fffd0934
JB		 490 if (err)
491 return err;
492
493 if (!addr) {
494 wdev->wext.keys->params[idx] = *params;
495 memcpy(wdev->wext.keys->data[idx],
496 params->key, params->key_len);
497 wdev->wext.keys->params[idx].key =
498 wdev->wext.keys->data[idx];
499 }
08645126 500
1f00fca5
ZY		 501 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
502 params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
fffd0934 503 (tx_key || (!addr && wdev->wext.default_key == -1))) {
98d3a7ca
JB		 504 if (wdev->current_bss) {
505 /*
506 * If we are getting a new TX key from not having
507 * had one before we need to join a new IBSS with
508 * the privacy bit set.
509 */
510 if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
511 wdev->wext.default_key == -1) {
512 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
513 rejoin = true;
514 }
e35e4d28 515 err = rdev_set_default_key(rdev, dev, idx, true, true);
98d3a7ca
JB		 516 }
517 if (!err) {
fffd0934 518 wdev->wext.default_key = idx;
98d3a7ca
JB		 519 if (rejoin)
520 err = cfg80211_ibss_wext_join(rdev, wdev);
521 }
fffd0934
JB		 522 return err;
523 }
08645126 524
fffd0934
JB		 525 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
526 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
527 if (wdev->current_bss)
e35e4d28 528 err = rdev_set_default_mgmt_key(rdev, dev, idx);
fffd0934
JB		 529 if (!err)
530 wdev->wext.default_mgmt_key = idx;
531 return err;
08645126 532 }
fffd0934
JB		 533
534 return 0;
535}
536
537static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
e31b8213
JB		 538 struct net_device *dev, bool pairwise,
539 const u8 *addr, bool remove, bool tx_key,
540 int idx, struct key_params *params)
fffd0934
JB		 541{
542 int err;
543
544 wdev_lock(dev->ieee80211_ptr);
e31b8213
JB		 545 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
546 remove, tx_key, idx, params);
fffd0934
JB		 547 wdev_unlock(dev->ieee80211_ptr);
548
549 return err;
08645126
JB		 550}
551
04b0c5c6
JB		 552static int cfg80211_wext_siwencode(struct net_device *dev,
553 struct iw_request_info *info,
554 struct iw_point *erq, char *keybuf)
08645126
JB		 555{
556 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 557 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
08645126
JB		 558 int idx, err;
559 bool remove = false;
560 struct key_params params;
561
fffd0934
JB		 562 if (wdev->iftype != NL80211_IFTYPE_STATION &&
563 wdev->iftype != NL80211_IFTYPE_ADHOC)
564 return -EOPNOTSUPP;
565
08645126
JB		 566 /* no use -- only MFP (set_default_mgmt_key) is optional */
567 if (!rdev->ops->del_key ||
568 !rdev->ops->add_key ||
569 !rdev->ops->set_default_key)
570 return -EOPNOTSUPP;
571
572 idx = erq->flags & IW_ENCODE_INDEX;
573 if (idx == 0) {
574 idx = wdev->wext.default_key;
575 if (idx < 0)
576 idx = 0;
577 } else if (idx < 1 || idx > 4)
578 return -EINVAL;
579 else
580 idx--;
581
582 if (erq->flags & IW_ENCODE_DISABLED)
583 remove = true;
584 else if (erq->length == 0) {
585 /* No key data - just set the default TX key index */
fffd0934
JB		 586 err = 0;
587 wdev_lock(wdev);
588 if (wdev->current_bss)
e35e4d28
HG		 589 err = rdev_set_default_key(rdev, dev, idx, true,
590 true);
08645126
JB		 591 if (!err)
592 wdev->wext.default_key = idx;
fffd0934 593 wdev_unlock(wdev);
08645126
JB		 594 return err;
595 }
596
597 memset(&params, 0, sizeof(params));
598 params.key = keybuf;
599 params.key_len = erq->length;
600 if (erq->length == 5)
601 params.cipher = WLAN_CIPHER_SUITE_WEP40;
602 else if (erq->length == 13)
603 params.cipher = WLAN_CIPHER_SUITE_WEP104;
604 else if (!remove)
605 return -EINVAL;
606
e31b8213 607 return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
08645126
JB		 608 wdev->wext.default_key == -1,
609 idx, &params);
610}
08645126 611
04b0c5c6
JB		 612static int cfg80211_wext_siwencodeext(struct net_device *dev,
613 struct iw_request_info *info,
614 struct iw_point *erq, char *extra)
08645126
JB		 615{
616 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 617 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
08645126
JB		 618 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
619 const u8 *addr;
620 int idx;
621 bool remove = false;
622 struct key_params params;
623 u32 cipher;
624
fffd0934
JB		 625 if (wdev->iftype != NL80211_IFTYPE_STATION &&
626 wdev->iftype != NL80211_IFTYPE_ADHOC)
627 return -EOPNOTSUPP;
628
08645126
JB		 629 /* no use -- only MFP (set_default_mgmt_key) is optional */
630 if (!rdev->ops->del_key ||
631 !rdev->ops->add_key ||
632 !rdev->ops->set_default_key)
633 return -EOPNOTSUPP;
634
635 switch (ext->alg) {
636 case IW_ENCODE_ALG_NONE:
637 remove = true;
638 cipher = 0;
639 break;
640 case IW_ENCODE_ALG_WEP:
641 if (ext->key_len == 5)
642 cipher = WLAN_CIPHER_SUITE_WEP40;
643 else if (ext->key_len == 13)
644 cipher = WLAN_CIPHER_SUITE_WEP104;
645 else
646 return -EINVAL;
647 break;
648 case IW_ENCODE_ALG_TKIP:
649 cipher = WLAN_CIPHER_SUITE_TKIP;
650 break;
651 case IW_ENCODE_ALG_CCMP:
652 cipher = WLAN_CIPHER_SUITE_CCMP;
653 break;
654 case IW_ENCODE_ALG_AES_CMAC:
655 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
656 break;
657 default:
658 return -EOPNOTSUPP;
659 }
660
661 if (erq->flags & IW_ENCODE_DISABLED)
662 remove = true;
663
664 idx = erq->flags & IW_ENCODE_INDEX;
665 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
666 if (idx < 4 || idx > 5) {
667 idx = wdev->wext.default_mgmt_key;
668 if (idx < 0)
669 return -EINVAL;
670 } else
671 idx--;
672 } else {
673 if (idx < 1 || idx > 4) {
674 idx = wdev->wext.default_key;
675 if (idx < 0)
676 return -EINVAL;
677 } else
678 idx--;
679 }
680
681 addr = ext->addr.sa_data;
682 if (is_broadcast_ether_addr(addr))
683 addr = NULL;
684
685 memset(&params, 0, sizeof(params));
686 params.key = ext->key;
687 params.key_len = ext->key_len;
688 params.cipher = cipher;
689
faa8fdc8
JM		 690 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
691 params.seq = ext->rx_seq;
692 params.seq_len = 6;
693 }
694
08645126 695 return cfg80211_set_encryption(
e31b8213
JB		 696 rdev, dev,
697 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
698 addr, remove,
08645126
JB		 699 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
700 idx, &params);
701}
08645126 702
04b0c5c6
JB		 703static int cfg80211_wext_giwencode(struct net_device *dev,
704 struct iw_request_info *info,
705 struct iw_point *erq, char *keybuf)
08645126
JB		 706{
707 struct wireless_dev *wdev = dev->ieee80211_ptr;
fffd0934 708 int idx;
08645126 709
fffd0934
JB		 710 if (wdev->iftype != NL80211_IFTYPE_STATION &&
711 wdev->iftype != NL80211_IFTYPE_ADHOC)
08645126
JB		 712 return -EOPNOTSUPP;
713
714 idx = erq->flags & IW_ENCODE_INDEX;
715 if (idx == 0) {
716 idx = wdev->wext.default_key;
717 if (idx < 0)
718 idx = 0;
719 } else if (idx < 1 || idx > 4)
720 return -EINVAL;
721 else
722 idx--;
723
724 erq->flags = idx + 1;
725
fffd0934 726 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
08645126
JB		 727 erq->flags |= IW_ENCODE_DISABLED;
728 erq->length = 0;
729 return 0;
730 }
731
fffd0934
JB		 732 erq->length = min_t(size_t, erq->length,
733 wdev->wext.keys->params[idx].key_len);
734 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
735 erq->flags |= IW_ENCODE_ENABLED;
736
737 return 0;
08645126 738}
7643a2c3 739
04b0c5c6
JB		 740static int cfg80211_wext_siwfreq(struct net_device *dev,
741 struct iw_request_info *info,
742 struct iw_freq *wextfreq, char *extra)
0e82ffe3
JB		 743{
744 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 745 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
683b6d3b 746 struct cfg80211_chan_def chandef = {
3d9d1d66 747 .width = NL80211_CHAN_WIDTH_20_NOHT,
683b6d3b 748 };
5fe231e8 749 int freq;
0e82ffe3
JB		 750
751 switch (wdev->iftype) {
752 case NL80211_IFTYPE_STATION:
59bbb6f7 753 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
0e82ffe3 754 case NL80211_IFTYPE_ADHOC:
59bbb6f7 755 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
f444de05 756 case NL80211_IFTYPE_MONITOR:
96998e3a 757 freq = cfg80211_wext_freq(wextfreq);
59bbb6f7
JB		 758 if (freq < 0)
759 return freq;
760 if (freq == 0)
0e82ffe3 761 return -EINVAL;
3d9d1d66 762 chandef.center_freq1 = freq;
683b6d3b
JB		 763 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
764 if (!chandef.chan)
765 return -EINVAL;
5fe231e8 766 return cfg80211_set_monitor_channel(rdev, &chandef);
cc1d2806 767 case NL80211_IFTYPE_MESH_POINT:
96998e3a 768 freq = cfg80211_wext_freq(wextfreq);
cc1d2806
JB		 769 if (freq < 0)
770 return freq;
771 if (freq == 0)
772 return -EINVAL;
3d9d1d66 773 chandef.center_freq1 = freq;
683b6d3b
JB		 774 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
775 if (!chandef.chan)
776 return -EINVAL;
5fe231e8 777 return cfg80211_set_mesh_channel(rdev, wdev, &chandef);
f444de05
JB		 778 default:
779 return -EOPNOTSUPP;
0e82ffe3
JB		 780 }
781}
0e82ffe3 782
04b0c5c6
JB		 783static int cfg80211_wext_giwfreq(struct net_device *dev,
784 struct iw_request_info *info,
785 struct iw_freq *freq, char *extra)
0e82ffe3
JB		 786{
787 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 788 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
683b6d3b
JB		 789 struct cfg80211_chan_def chandef;
790 int ret;
0e82ffe3
JB		 791
792 switch (wdev->iftype) {
793 case NL80211_IFTYPE_STATION:
794 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
795 case NL80211_IFTYPE_ADHOC:
796 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
e999882a 797 case NL80211_IFTYPE_MONITOR:
5b7ccaf3 798 if (!rdev->ops->get_channel)
e999882a
JB		 799 return -EINVAL;
800
683b6d3b
JB		 801 ret = rdev_get_channel(rdev, wdev, &chandef);
802 if (ret)
803 return ret;
804 freq->m = chandef.chan->center_freq;
e999882a
JB		 805 freq->e = 6;
806 return 0;
0e82ffe3 807 default:
e8c9bd5b 808 return -EINVAL;
0e82ffe3
JB		 809 }
810}
0e82ffe3 811
04b0c5c6
JB		 812static int cfg80211_wext_siwtxpower(struct net_device *dev,
813 struct iw_request_info *info,
814 union iwreq_data *data, char *extra)
7643a2c3
JB		 815{
816 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 817 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
fa61cf70 818 enum nl80211_tx_power_setting type;
7643a2c3
JB		 819 int dbm = 0;
820
821 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
822 return -EINVAL;
823 if (data->txpower.flags & IW_TXPOW_RANGE)
824 return -EINVAL;
825
826 if (!rdev->ops->set_tx_power)
827 return -EOPNOTSUPP;
828
829 /* only change when not disabling */
830 if (!data->txpower.disabled) {
1f87f7d3
JB		 831 rfkill_set_sw_state(rdev->rfkill, false);
832
7643a2c3
JB		 833 if (data->txpower.fixed) {
834 /*
835 * wext doesn't support negative values, see
836 * below where it's for automatic
837 */
838 if (data->txpower.value < 0)
839 return -EINVAL;
840 dbm = data->txpower.value;
fa61cf70 841 type = NL80211_TX_POWER_FIXED;
7643a2c3
JB		 842 /* TODO: do regulatory check! */
843 } else {
844 /*
845 * Automatic power level setting, max being the value
846 * passed in from userland.
847 */
848 if (data->txpower.value < 0) {
fa61cf70 849 type = NL80211_TX_POWER_AUTOMATIC;
7643a2c3
JB		 850 } else {
851 dbm = data->txpower.value;
fa61cf70 852 type = NL80211_TX_POWER_LIMITED;
7643a2c3
JB		 853 }
854 }
855 } else {
1f87f7d3
JB		 856 rfkill_set_sw_state(rdev->rfkill, true);
857 schedule_work(&rdev->rfkill_sync);
858 return 0;
7643a2c3
JB		 859 }
860
c8442118 861 return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
7643a2c3 862}
7643a2c3 863
04b0c5c6
JB		 864static int cfg80211_wext_giwtxpower(struct net_device *dev,
865 struct iw_request_info *info,
866 union iwreq_data *data, char *extra)
7643a2c3
JB		 867{
868 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 869 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7643a2c3
JB		 870 int err, val;
871
872 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
873 return -EINVAL;
874 if (data->txpower.flags & IW_TXPOW_RANGE)
875 return -EINVAL;
876
877 if (!rdev->ops->get_tx_power)
878 return -EOPNOTSUPP;
879
c8442118 880 err = rdev_get_tx_power(rdev, wdev, &val);
1f87f7d3 881 if (err)
7643a2c3
JB		 882 return err;
883
884 /* well... oh well */
885 data->txpower.fixed = 1;
1f87f7d3 886 data->txpower.disabled = rfkill_blocked(rdev->rfkill);
7643a2c3
JB		 887 data->txpower.value = val;
888 data->txpower.flags = IW_TXPOW_DBM;
889
890 return 0;
891}
f2129354
JB		 892
893static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
894 s32 auth_alg)
895{
896 int nr_alg = 0;
897
898 if (!auth_alg)
899 return -EINVAL;
900
901 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
902 IW_AUTH_ALG_SHARED_KEY |
903 IW_AUTH_ALG_LEAP))
904 return -EINVAL;
905
906 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
907 nr_alg++;
908 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
909 }
910
911 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
912 nr_alg++;
913 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
914 }
915
916 if (auth_alg & IW_AUTH_ALG_LEAP) {
917 nr_alg++;
918 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
919 }
920
921 if (nr_alg > 1)
922 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
923
924 return 0;
925}
926
927static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
928{
f2129354 929 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
323d566e
GS		 930 IW_AUTH_WPA_VERSION_WPA2|
931 IW_AUTH_WPA_VERSION_DISABLED))
f2129354
JB		 932 return -EINVAL;
933
323d566e
GS		 934 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
935 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
936 IW_AUTH_WPA_VERSION_WPA2)))
937 return -EINVAL;
938
939 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
940 wdev->wext.connect.crypto.wpa_versions &=
941 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
942
f2129354
JB		 943 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
944 wdev->wext.connect.crypto.wpa_versions |=
945 NL80211_WPA_VERSION_1;
946
947 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
948 wdev->wext.connect.crypto.wpa_versions |=
949 NL80211_WPA_VERSION_2;
950
951 return 0;
952}
953
4f5dadce 954static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
f2129354 955{
f2129354
JB		 956 if (cipher & IW_AUTH_CIPHER_WEP40)
957 wdev->wext.connect.crypto.cipher_group =
958 WLAN_CIPHER_SUITE_WEP40;
959 else if (cipher & IW_AUTH_CIPHER_WEP104)
960 wdev->wext.connect.crypto.cipher_group =
961 WLAN_CIPHER_SUITE_WEP104;
962 else if (cipher & IW_AUTH_CIPHER_TKIP)
963 wdev->wext.connect.crypto.cipher_group =
964 WLAN_CIPHER_SUITE_TKIP;
965 else if (cipher & IW_AUTH_CIPHER_CCMP)
966 wdev->wext.connect.crypto.cipher_group =
967 WLAN_CIPHER_SUITE_CCMP;
968 else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
969 wdev->wext.connect.crypto.cipher_group =
970 WLAN_CIPHER_SUITE_AES_CMAC;
c5f8289c
JM		 971 else if (cipher & IW_AUTH_CIPHER_NONE)
972 wdev->wext.connect.crypto.cipher_group = 0;
f2129354
JB		 973 else
974 return -EINVAL;
975
976 return 0;
977}
978
4f5dadce 979static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
f2129354
JB		 980{
981 int nr_ciphers = 0;
982 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
983
984 if (cipher & IW_AUTH_CIPHER_WEP40) {
985 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
986 nr_ciphers++;
987 }
988
989 if (cipher & IW_AUTH_CIPHER_WEP104) {
990 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
991 nr_ciphers++;
992 }
993
994 if (cipher & IW_AUTH_CIPHER_TKIP) {
995 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
996 nr_ciphers++;
997 }
998
999 if (cipher & IW_AUTH_CIPHER_CCMP) {
1000 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1001 nr_ciphers++;
1002 }
1003
1004 if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1005 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1006 nr_ciphers++;
1007 }
1008
1009 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1010
1011 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1012
1013 return 0;
1014}
1015
1016
4f5dadce 1017static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
f2129354
JB		 1018{
1019 int nr_akm_suites = 0;
1020
1021 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1022 IW_AUTH_KEY_MGMT_PSK))
1023 return -EINVAL;
1024
1025 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1026 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1027 WLAN_AKM_SUITE_8021X;
1028 nr_akm_suites++;
1029 }
1030
1031 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1032 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1033 WLAN_AKM_SUITE_PSK;
1034 nr_akm_suites++;
1035 }
1036
1037 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1038
1039 return 0;
1040}
1041
04b0c5c6
JB		 1042static int cfg80211_wext_siwauth(struct net_device *dev,
1043 struct iw_request_info *info,
1044 struct iw_param *data, char *extra)
f2129354
JB		 1045{
1046 struct wireless_dev *wdev = dev->ieee80211_ptr;
1047
1048 if (wdev->iftype != NL80211_IFTYPE_STATION)
1049 return -EOPNOTSUPP;
1050
1051 switch (data->flags & IW_AUTH_INDEX) {
1052 case IW_AUTH_PRIVACY_INVOKED:
1053 wdev->wext.connect.privacy = data->value;
1054 return 0;
1055 case IW_AUTH_WPA_VERSION:
1056 return cfg80211_set_wpa_version(wdev, data->value);
1057 case IW_AUTH_CIPHER_GROUP:
1058 return cfg80211_set_cipher_group(wdev, data->value);
1059 case IW_AUTH_KEY_MGMT:
1060 return cfg80211_set_key_mgt(wdev, data->value);
1061 case IW_AUTH_CIPHER_PAIRWISE:
1062 return cfg80211_set_cipher_pairwise(wdev, data->value);
1063 case IW_AUTH_80211_AUTH_ALG:
1064 return cfg80211_set_auth_alg(wdev, data->value);
1065 case IW_AUTH_WPA_ENABLED:
1066 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1067 case IW_AUTH_DROP_UNENCRYPTED:
1068 case IW_AUTH_MFP:
1069 return 0;
1070 default:
1071 return -EOPNOTSUPP;
1072 }
1073}
f2129354 1074
04b0c5c6
JB		 1075static int cfg80211_wext_giwauth(struct net_device *dev,
1076 struct iw_request_info *info,
1077 struct iw_param *data, char *extra)
f2129354
JB		 1078{
1079 /* XXX: what do we need? */
1080
1081 return -EOPNOTSUPP;
1082}
bc92afd9 1083
04b0c5c6
JB		 1084static int cfg80211_wext_siwpower(struct net_device *dev,
1085 struct iw_request_info *info,
1086 struct iw_param *wrq, char *extra)
bc92afd9
JB		 1087{
1088 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 1089 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
ffb9eb3d
KV		 1090 bool ps = wdev->ps;
1091 int timeout = wdev->ps_timeout;
bc92afd9
JB		 1092 int err;
1093
1094 if (wdev->iftype != NL80211_IFTYPE_STATION)
1095 return -EINVAL;
1096
1097 if (!rdev->ops->set_power_mgmt)
1098 return -EOPNOTSUPP;
1099
1100 if (wrq->disabled) {
1101 ps = false;
1102 } else {
1103 switch (wrq->flags & IW_POWER_MODE) {
1104 case IW_POWER_ON: /* If not specified */
1105 case IW_POWER_MODE: /* If set all mask */
1106 case IW_POWER_ALL_R: /* If explicitely state all */
1107 ps = true;
1108 break;
1109 default: /* Otherwise we ignore */
1110 return -EINVAL;
1111 }
1112
1113 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1114 return -EINVAL;
1115
1116 if (wrq->flags & IW_POWER_TIMEOUT)
1117 timeout = wrq->value / 1000;
1118 }
1119
e35e4d28 1120 err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
bc92afd9
JB		 1121 if (err)
1122 return err;
1123
ffb9eb3d
KV		 1124 wdev->ps = ps;
1125 wdev->ps_timeout = timeout;
bc92afd9
JB		 1126
1127 return 0;
1128
1129}
bc92afd9 1130
04b0c5c6
JB		 1131static int cfg80211_wext_giwpower(struct net_device *dev,
1132 struct iw_request_info *info,
1133 struct iw_param *wrq, char *extra)
bc92afd9
JB		 1134{
1135 struct wireless_dev *wdev = dev->ieee80211_ptr;
1136
ffb9eb3d 1137 wrq->disabled = !wdev->ps;
bc92afd9
JB		 1138
1139 return 0;
1140}
ab737a4f 1141
562e4822
JB		 1142static int cfg80211_wds_wext_siwap(struct net_device *dev,
1143 struct iw_request_info *info,
1144 struct sockaddr *addr, char *extra)
ab737a4f
JB		 1145{
1146 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 1147 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
ab737a4f
JB		 1148 int err;
1149
1150 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1151 return -EINVAL;
1152
1153 if (addr->sa_family != ARPHRD_ETHER)
1154 return -EINVAL;
1155
1156 if (netif_running(dev))
1157 return -EBUSY;
1158
1159 if (!rdev->ops->set_wds_peer)
1160 return -EOPNOTSUPP;
1161
e35e4d28 1162 err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data);
ab737a4f
JB		 1163 if (err)
1164 return err;
1165
1166 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1167
1168 return 0;
1169}
ab737a4f 1170
562e4822
JB		 1171static int cfg80211_wds_wext_giwap(struct net_device *dev,
1172 struct iw_request_info *info,
1173 struct sockaddr *addr, char *extra)
ab737a4f
JB		 1174{
1175 struct wireless_dev *wdev = dev->ieee80211_ptr;
1176
1177 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1178 return -EINVAL;
1179
1180 addr->sa_family = ARPHRD_ETHER;
1181 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1182
1183 return 0;
1184}
9930380f 1185
04b0c5c6
JB		 1186static int cfg80211_wext_siwrate(struct net_device *dev,
1187 struct iw_request_info *info,
1188 struct iw_param *rate, char *extra)
9930380f
JB		 1189{
1190 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 1191 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
9930380f 1192 struct cfg80211_bitrate_mask mask;
37eb0b16
JM		 1193 u32 fixed, maxrate;
1194 struct ieee80211_supported_band *sband;
1195 int band, ridx;
1196 bool match = false;
9930380f
JB		 1197
1198 if (!rdev->ops->set_bitrate_mask)
1199 return -EOPNOTSUPP;
1200
37eb0b16
JM		 1201 memset(&mask, 0, sizeof(mask));
1202 fixed = 0;
54233261 1203 maxrate = (u32)-1;
9930380f
JB		 1204
1205 if (rate->value < 0) {
1206 /* nothing */
1207 } else if (rate->fixed) {
37eb0b16 1208 fixed = rate->value / 100000;
9930380f 1209 } else {
37eb0b16
JM		 1210 maxrate = rate->value / 100000;
1211 }
1212
57fbcce3 1213 for (band = 0; band < NUM_NL80211_BANDS; band++) {
37eb0b16
JM		 1214 sband = wdev->wiphy->bands[band];
1215 if (sband == NULL)
1216 continue;
1217 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1218 struct ieee80211_rate *srate = &sband->bitrates[ridx];
1219 if (fixed == srate->bitrate) {
1220 mask.control[band].legacy = 1 << ridx;
1221 match = true;
1222 break;
1223 }
1224 if (srate->bitrate <= maxrate) {
1225 mask.control[band].legacy |= 1 << ridx;
1226 match = true;
1227 }
1228 }
9930380f
JB		 1229 }
1230
37eb0b16
JM		 1231 if (!match)
1232 return -EINVAL;
1233
e35e4d28 1234 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
9930380f 1235}
9930380f 1236
04b0c5c6
JB		 1237static int cfg80211_wext_giwrate(struct net_device *dev,
1238 struct iw_request_info *info,
1239 struct iw_param *rate, char *extra)
9930380f
JB		 1240{
1241 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 1242 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
9930380f
JB		 1243 /* we are under RTNL - globally locked - so can use a static struct */
1244 static struct station_info sinfo;
a71d62db 1245 u8 addr[ETH_ALEN];
9930380f
JB		 1246 int err;
1247
1248 if (wdev->iftype != NL80211_IFTYPE_STATION)
1249 return -EOPNOTSUPP;
1250
1251 if (!rdev->ops->get_station)
1252 return -EOPNOTSUPP;
1253
a71d62db
JB		 1254 err = 0;
1255 wdev_lock(wdev);
6c230c02 1256 if (wdev->current_bss)
a71d62db 1257 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
6c230c02 1258 else
a71d62db
JB		 1259 err = -EOPNOTSUPP;
1260 wdev_unlock(wdev);
1261 if (err)
1262 return err;
9930380f 1263
e35e4d28 1264 err = rdev_get_station(rdev, dev, addr, &sinfo);
9930380f
JB		 1265 if (err)
1266 return err;
1267
319090bf 1268 if (!(sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE)))
9930380f
JB		 1269 return -EOPNOTSUPP;
1270
254416aa 1271 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
9930380f
JB		 1272
1273 return 0;
1274}
8990646d
JB		 1275
1276/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
04b0c5c6 1277static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
8990646d
JB		 1278{
1279 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 1280 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
8990646d
JB		 1281 /* we are under RTNL - globally locked - so can use static structs */
1282 static struct iw_statistics wstats;
1283 static struct station_info sinfo;
c56c5714 1284 u8 bssid[ETH_ALEN];
8990646d
JB		 1285
1286 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1287 return NULL;
1288
1289 if (!rdev->ops->get_station)
1290 return NULL;
1291
c56c5714
JB		 1292 /* Grab BSSID of current BSS, if any */
1293 wdev_lock(wdev);
1294 if (!wdev->current_bss) {
1295 wdev_unlock(wdev);
8990646d 1296 return NULL;
c56c5714
JB		 1297 }
1298 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1299 wdev_unlock(wdev);
8990646d 1300
9c5a18a3
JB		 1301 memset(&sinfo, 0, sizeof(sinfo));
1302
e35e4d28 1303 if (rdev_get_station(rdev, dev, bssid, &sinfo))
8990646d
JB		 1304 return NULL;
1305
1306 memset(&wstats, 0, sizeof(wstats));
1307
1308 switch (rdev->wiphy.signal_type) {
1309 case CFG80211_SIGNAL_TYPE_MBM:
319090bf 1310 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) {
8990646d
JB		 1311 int sig = sinfo.signal;
1312 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1313 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1314 wstats.qual.updated |= IW_QUAL_DBM;
1315 wstats.qual.level = sig;
1316 if (sig < -110)
1317 sig = -110;
1318 else if (sig > -40)
1319 sig = -40;
1320 wstats.qual.qual = sig + 110;
1321 break;
1322 }
1323 case CFG80211_SIGNAL_TYPE_UNSPEC:
319090bf 1324 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) {
8990646d
JB		 1325 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1326 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1327 wstats.qual.level = sinfo.signal;
1328 wstats.qual.qual = sinfo.signal;
1329 break;
1330 }
1331 default:
1332 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1333 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1334 }
1335
1336 wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
319090bf 1337 if (sinfo.filled & BIT(NL80211_STA_INFO_RX_DROP_MISC))
5a5c731a 1338 wstats.discard.misc = sinfo.rx_dropped_misc;
319090bf 1339 if (sinfo.filled & BIT(NL80211_STA_INFO_TX_FAILED))
5a5c731a 1340 wstats.discard.retries = sinfo.tx_failed;
8990646d
JB		 1341
1342 return &wstats;
1343}
562e4822 1344
04b0c5c6
JB		 1345static int cfg80211_wext_siwap(struct net_device *dev,
1346 struct iw_request_info *info,
1347 struct sockaddr *ap_addr, char *extra)
562e4822
JB		 1348{
1349 struct wireless_dev *wdev = dev->ieee80211_ptr;
1350
1351 switch (wdev->iftype) {
1352 case NL80211_IFTYPE_ADHOC:
1353 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1354 case NL80211_IFTYPE_STATION:
1355 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1356 case NL80211_IFTYPE_WDS:
1357 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1358 default:
1359 return -EOPNOTSUPP;
1360 }
1361}
562e4822 1362
04b0c5c6
JB		 1363static int cfg80211_wext_giwap(struct net_device *dev,
1364 struct iw_request_info *info,
1365 struct sockaddr *ap_addr, char *extra)
562e4822
JB		 1366{
1367 struct wireless_dev *wdev = dev->ieee80211_ptr;
1368
1369 switch (wdev->iftype) {
1370 case NL80211_IFTYPE_ADHOC:
1371 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1372 case NL80211_IFTYPE_STATION:
1373 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1374 case NL80211_IFTYPE_WDS:
1375 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1376 default:
1377 return -EOPNOTSUPP;
1378 }
1379}
1f9298f9 1380
04b0c5c6
JB		 1381static int cfg80211_wext_siwessid(struct net_device *dev,
1382 struct iw_request_info *info,
1383 struct iw_point *data, char *ssid)
1f9298f9
JB		 1384{
1385 struct wireless_dev *wdev = dev->ieee80211_ptr;
1386
1387 switch (wdev->iftype) {
1388 case NL80211_IFTYPE_ADHOC:
1389 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1390 case NL80211_IFTYPE_STATION:
1391 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1392 default:
1393 return -EOPNOTSUPP;
1394 }
1395}
1f9298f9 1396
04b0c5c6
JB		 1397static int cfg80211_wext_giwessid(struct net_device *dev,
1398 struct iw_request_info *info,
1399 struct iw_point *data, char *ssid)
1f9298f9
JB		 1400{
1401 struct wireless_dev *wdev = dev->ieee80211_ptr;
1402
42da2f94
JB		 1403 data->flags = 0;
1404 data->length = 0;
1405
1f9298f9
JB		 1406 switch (wdev->iftype) {
1407 case NL80211_IFTYPE_ADHOC:
1408 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1409 case NL80211_IFTYPE_STATION:
1410 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1411 default:
1412 return -EOPNOTSUPP;
1413 }
1414}
a9a11622 1415
04b0c5c6
JB		 1416static int cfg80211_wext_siwpmksa(struct net_device *dev,
1417 struct iw_request_info *info,
1418 struct iw_point *data, char *extra)
2944b2c2
SO		 1419{
1420 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 1421 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
2944b2c2
SO		 1422 struct cfg80211_pmksa cfg_pmksa;
1423 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1424
1425 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1426
1427 if (wdev->iftype != NL80211_IFTYPE_STATION)
1428 return -EINVAL;
1429
1430 cfg_pmksa.bssid = pmksa->bssid.sa_data;
1431 cfg_pmksa.pmkid = pmksa->pmkid;
1432
1433 switch (pmksa->cmd) {
1434 case IW_PMKSA_ADD:
1435 if (!rdev->ops->set_pmksa)
1436 return -EOPNOTSUPP;
1437
e35e4d28 1438 return rdev_set_pmksa(rdev, dev, &cfg_pmksa);
2944b2c2
SO		 1439
1440 case IW_PMKSA_REMOVE:
1441 if (!rdev->ops->del_pmksa)
1442 return -EOPNOTSUPP;
1443
e35e4d28 1444 return rdev_del_pmksa(rdev, dev, &cfg_pmksa);
2944b2c2
SO		 1445
1446 case IW_PMKSA_FLUSH:
1447 if (!rdev->ops->flush_pmksa)
1448 return -EOPNOTSUPP;
1449
e35e4d28 1450 return rdev_flush_pmksa(rdev, dev);
2944b2c2
SO		 1451
1452 default:
1453 return -EOPNOTSUPP;
1454 }
1455}
1456
a9a11622
JB		 1457static const iw_handler cfg80211_handlers[] = {
1458 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname,
1459 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq,
1460 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq,
1461 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode,
1462 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode,
1463 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange,
1464 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap,
1465 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap,
1466 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme,
1467 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan,
1468 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan,
1469 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid,
1470 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid,
1471 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate,
1472 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate,
1473 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts,
1474 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts,
1475 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag,
1476 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag,
1477 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower,
1478 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower,
1479 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry,
1480 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry,
1481 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode,
1482 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode,
1483 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower,
1484 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower,
1485 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie,
1486 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth,
1487 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth,
1488 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
2944b2c2 1489 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa,
a9a11622
JB		 1490};
1491
1492const struct iw_handler_def cfg80211_wext_handler = {
1493 .num_standard = ARRAY_SIZE(cfg80211_handlers),
1494 .standard = cfg80211_handlers,
1495 .get_wireless_stats = cfg80211_wireless_stats,
1496};
Linux 6.x block layer and io_uring tree(s)