1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * cfg80211 - wext compat code |
4 | * |
5 | * This is temporary code until all wireless functionality is migrated |
6 | * into cfg80211, when that happens all the exports here go away and |
7 | * we directly assign the wireless handlers of wireless interfaces. |
8 | * |
9 | * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net> |
10 | * Copyright (C) 2019-2023 Intel Corporation |
11 | */ |
12 | |
13 | #include <linux/export.h> |
14 | #include <linux/wireless.h> |
15 | #include <linux/nl80211.h> |
16 | #include <linux/if_arp.h> |
17 | #include <linux/etherdevice.h> |
18 | #include <linux/slab.h> |
19 | #include <net/iw_handler.h> |
20 | #include <net/cfg80211.h> |
21 | #include <net/cfg80211-wext.h> |
22 | #include "wext-compat.h" |
23 | #include "core.h" |
24 | #include "rdev-ops.h" |
25 | |
26 | int cfg80211_wext_giwname(struct net_device *dev, |
27 | struct iw_request_info *info, |
28 | union iwreq_data *wrqu, char *) |
29 | { |
30 | strcpy(p: wrqu->name, q: "IEEE 802.11" ); |
31 | return 0; |
32 | } |
33 | EXPORT_WEXT_HANDLER(cfg80211_wext_giwname); |
34 | |
35 | int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, |
36 | union iwreq_data *wrqu, char *) |
37 | { |
38 | __u32 *mode = &wrqu->mode; |
39 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
40 | struct cfg80211_registered_device *rdev; |
41 | struct vif_params vifparams; |
42 | enum nl80211_iftype type; |
43 | int ret; |
44 | |
45 | rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
46 | |
47 | switch (*mode) { |
48 | case IW_MODE_INFRA: |
49 | type = NL80211_IFTYPE_STATION; |
50 | break; |
51 | case IW_MODE_ADHOC: |
52 | type = NL80211_IFTYPE_ADHOC; |
53 | break; |
54 | case IW_MODE_MONITOR: |
55 | type = NL80211_IFTYPE_MONITOR; |
56 | break; |
57 | default: |
58 | return -EINVAL; |
59 | } |
60 | |
61 | if (type == wdev->iftype) |
62 | return 0; |
63 | |
64 | memset(&vifparams, 0, sizeof(vifparams)); |
65 | |
66 | wiphy_lock(wiphy: wdev->wiphy); |
67 | ret = cfg80211_change_iface(rdev, dev, ntype: type, params: &vifparams); |
68 | wiphy_unlock(wiphy: wdev->wiphy); |
69 | |
70 | return ret; |
71 | } |
72 | EXPORT_WEXT_HANDLER(cfg80211_wext_siwmode); |
73 | |
74 | int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, |
75 | union iwreq_data *wrqu, char *) |
76 | { |
77 | __u32 *mode = &wrqu->mode; |
78 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
79 | |
80 | if (!wdev) |
81 | return -EOPNOTSUPP; |
82 | |
83 | switch (wdev->iftype) { |
84 | case NL80211_IFTYPE_AP: |
85 | *mode = IW_MODE_MASTER; |
86 | break; |
87 | case NL80211_IFTYPE_STATION: |
88 | *mode = IW_MODE_INFRA; |
89 | break; |
90 | case NL80211_IFTYPE_ADHOC: |
91 | *mode = IW_MODE_ADHOC; |
92 | break; |
93 | case NL80211_IFTYPE_MONITOR: |
94 | *mode = IW_MODE_MONITOR; |
95 | break; |
96 | case NL80211_IFTYPE_WDS: |
97 | *mode = IW_MODE_REPEAT; |
98 | break; |
99 | case NL80211_IFTYPE_AP_VLAN: |
100 | *mode = IW_MODE_SECOND; /* FIXME */ |
101 | break; |
102 | default: |
103 | *mode = IW_MODE_AUTO; |
104 | break; |
105 | } |
106 | return 0; |
107 | } |
108 | EXPORT_WEXT_HANDLER(cfg80211_wext_giwmode); |
109 | |
110 | |
111 | int cfg80211_wext_giwrange(struct net_device *dev, |
112 | struct iw_request_info *info, |
113 | union iwreq_data *wrqu, char *) |
114 | { |
115 | struct iw_point *data = &wrqu->data; |
116 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
117 | struct iw_range *range = (struct iw_range *) extra; |
118 | enum nl80211_band band; |
119 | int i, c = 0; |
120 | |
121 | if (!wdev) |
122 | return -EOPNOTSUPP; |
123 | |
124 | data->length = sizeof(struct iw_range); |
125 | memset(range, 0, sizeof(struct iw_range)); |
126 | |
127 | range->we_version_compiled = WIRELESS_EXT; |
128 | range->we_version_source = 21; |
129 | range->retry_capa = IW_RETRY_LIMIT; |
130 | range->retry_flags = IW_RETRY_LIMIT; |
131 | range->min_retry = 0; |
132 | range->max_retry = 255; |
133 | range->min_rts = 0; |
134 | range->max_rts = 2347; |
135 | range->min_frag = 256; |
136 | range->max_frag = 2346; |
137 | |
138 | range->max_encoding_tokens = 4; |
139 | |
140 | range->max_qual.updated = IW_QUAL_NOISE_INVALID; |
141 | |
142 | switch (wdev->wiphy->signal_type) { |
143 | case CFG80211_SIGNAL_TYPE_NONE: |
144 | break; |
145 | case CFG80211_SIGNAL_TYPE_MBM: |
146 | range->max_qual.level = (u8)-110; |
147 | range->max_qual.qual = 70; |
148 | range->avg_qual.qual = 35; |
149 | range->max_qual.updated |= IW_QUAL_DBM; |
150 | range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; |
151 | range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; |
152 | break; |
153 | case CFG80211_SIGNAL_TYPE_UNSPEC: |
154 | range->max_qual.level = 100; |
155 | range->max_qual.qual = 100; |
156 | range->avg_qual.qual = 50; |
157 | range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; |
158 | range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; |
159 | break; |
160 | } |
161 | |
162 | range->avg_qual.level = range->max_qual.level / 2; |
163 | range->avg_qual.noise = range->max_qual.noise / 2; |
164 | range->avg_qual.updated = range->max_qual.updated; |
165 | |
166 | for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) { |
167 | switch (wdev->wiphy->cipher_suites[i]) { |
168 | case WLAN_CIPHER_SUITE_TKIP: |
169 | range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP | |
170 | IW_ENC_CAPA_WPA); |
171 | break; |
172 | |
173 | case WLAN_CIPHER_SUITE_CCMP: |
174 | range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP | |
175 | IW_ENC_CAPA_WPA2); |
176 | break; |
177 | |
178 | case WLAN_CIPHER_SUITE_WEP40: |
179 | range->encoding_size[range->num_encoding_sizes++] = |
180 | WLAN_KEY_LEN_WEP40; |
181 | break; |
182 | |
183 | case WLAN_CIPHER_SUITE_WEP104: |
184 | range->encoding_size[range->num_encoding_sizes++] = |
185 | WLAN_KEY_LEN_WEP104; |
186 | break; |
187 | } |
188 | } |
189 | |
190 | for (band = 0; band < NUM_NL80211_BANDS; band ++) { |
191 | struct ieee80211_supported_band *sband; |
192 | |
193 | sband = wdev->wiphy->bands[band]; |
194 | |
195 | if (!sband) |
196 | continue; |
197 | |
198 | for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { |
199 | struct ieee80211_channel *chan = &sband->channels[i]; |
200 | |
201 | if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { |
202 | range->freq[c].i = |
203 | ieee80211_frequency_to_channel( |
204 | freq: chan->center_freq); |
205 | range->freq[c].m = chan->center_freq; |
206 | range->freq[c].e = 6; |
207 | c++; |
208 | } |
209 | } |
210 | } |
211 | range->num_channels = c; |
212 | range->num_frequency = c; |
213 | |
214 | IW_EVENT_CAPA_SET_KERNEL(range->event_capa); |
215 | IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); |
216 | IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); |
217 | |
218 | if (wdev->wiphy->max_scan_ssids > 0) |
219 | range->scan_capa |= IW_SCAN_CAPA_ESSID; |
220 | |
221 | return 0; |
222 | } |
223 | EXPORT_WEXT_HANDLER(cfg80211_wext_giwrange); |
224 | |
225 | |
226 | /** |
227 | * cfg80211_wext_freq - get wext frequency for non-"auto" |
228 | * @freq: the wext freq encoding |
229 | * |
230 | * Returns: a frequency, or a negative error code, or 0 for auto. |
231 | */ |
232 | int cfg80211_wext_freq(struct iw_freq *freq) |
233 | { |
234 | /* |
235 | * Parse frequency - return 0 for auto and |
236 | * -EINVAL for impossible things. |
237 | */ |
238 | if (freq->e == 0) { |
239 | enum nl80211_band band = NL80211_BAND_2GHZ; |
240 | if (freq->m < 0) |
241 | return 0; |
242 | if (freq->m > 14) |
243 | band = NL80211_BAND_5GHZ; |
244 | return ieee80211_channel_to_frequency(chan: freq->m, band); |
245 | } else { |
246 | int i, div = 1000000; |
247 | for (i = 0; i < freq->e; i++) |
248 | div /= 10; |
249 | if (div <= 0) |
250 | return -EINVAL; |
251 | return freq->m / div; |
252 | } |
253 | } |
254 | |
255 | int cfg80211_wext_siwrts(struct net_device *dev, |
256 | struct iw_request_info *info, |
257 | union iwreq_data *wrqu, char *) |
258 | { |
259 | struct iw_param *rts = &wrqu->rts; |
260 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
261 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
262 | u32 orts = wdev->wiphy->rts_threshold; |
263 | int err; |
264 | |
265 | wiphy_lock(wiphy: &rdev->wiphy); |
266 | if (rts->disabled || !rts->fixed) { |
267 | wdev->wiphy->rts_threshold = (u32) -1; |
268 | } else if (rts->value < 0) { |
269 | err = -EINVAL; |
270 | goto out; |
271 | } else { |
272 | wdev->wiphy->rts_threshold = rts->value; |
273 | } |
274 | |
275 | err = rdev_set_wiphy_params(rdev, changed: WIPHY_PARAM_RTS_THRESHOLD); |
276 | |
277 | if (err) |
278 | wdev->wiphy->rts_threshold = orts; |
279 | |
280 | out: |
281 | wiphy_unlock(wiphy: &rdev->wiphy); |
282 | return err; |
283 | } |
284 | EXPORT_WEXT_HANDLER(cfg80211_wext_siwrts); |
285 | |
286 | int cfg80211_wext_giwrts(struct net_device *dev, |
287 | struct iw_request_info *info, |
288 | union iwreq_data *wrqu, char *) |
289 | { |
290 | struct iw_param *rts = &wrqu->rts; |
291 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
292 | |
293 | rts->value = wdev->wiphy->rts_threshold; |
294 | rts->disabled = rts->value == (u32) -1; |
295 | rts->fixed = 1; |
296 | |
297 | return 0; |
298 | } |
299 | EXPORT_WEXT_HANDLER(cfg80211_wext_giwrts); |
300 | |
301 | int cfg80211_wext_siwfrag(struct net_device *dev, |
302 | struct iw_request_info *info, |
303 | union iwreq_data *wrqu, char *) |
304 | { |
305 | struct iw_param *frag = &wrqu->frag; |
306 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
307 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
308 | u32 ofrag = wdev->wiphy->frag_threshold; |
309 | int err; |
310 | |
311 | wiphy_lock(wiphy: &rdev->wiphy); |
312 | if (frag->disabled || !frag->fixed) { |
313 | wdev->wiphy->frag_threshold = (u32) -1; |
314 | } else if (frag->value < 256) { |
315 | err = -EINVAL; |
316 | goto out; |
317 | } else { |
318 | /* Fragment length must be even, so strip LSB. */ |
319 | wdev->wiphy->frag_threshold = frag->value & ~0x1; |
320 | } |
321 | |
322 | err = rdev_set_wiphy_params(rdev, changed: WIPHY_PARAM_FRAG_THRESHOLD); |
323 | if (err) |
324 | wdev->wiphy->frag_threshold = ofrag; |
325 | out: |
326 | wiphy_unlock(wiphy: &rdev->wiphy); |
327 | |
328 | return err; |
329 | } |
330 | EXPORT_WEXT_HANDLER(cfg80211_wext_siwfrag); |
331 | |
332 | int cfg80211_wext_giwfrag(struct net_device *dev, |
333 | struct iw_request_info *info, |
334 | union iwreq_data *wrqu, char *) |
335 | { |
336 | struct iw_param *frag = &wrqu->frag; |
337 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
338 | |
339 | frag->value = wdev->wiphy->frag_threshold; |
340 | frag->disabled = frag->value == (u32) -1; |
341 | frag->fixed = 1; |
342 | |
343 | return 0; |
344 | } |
345 | EXPORT_WEXT_HANDLER(cfg80211_wext_giwfrag); |
346 | |
347 | static int cfg80211_wext_siwretry(struct net_device *dev, |
348 | struct iw_request_info *info, |
349 | union iwreq_data *wrqu, char *) |
350 | { |
351 | struct iw_param *retry = &wrqu->retry; |
352 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
353 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
354 | u32 changed = 0; |
355 | u8 olong = wdev->wiphy->retry_long; |
356 | u8 oshort = wdev->wiphy->retry_short; |
357 | int err; |
358 | |
359 | if (retry->disabled || retry->value < 1 || retry->value > 255 || |
360 | (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) |
361 | return -EINVAL; |
362 | |
363 | wiphy_lock(wiphy: &rdev->wiphy); |
364 | if (retry->flags & IW_RETRY_LONG) { |
365 | wdev->wiphy->retry_long = retry->value; |
366 | changed |= WIPHY_PARAM_RETRY_LONG; |
367 | } else if (retry->flags & IW_RETRY_SHORT) { |
368 | wdev->wiphy->retry_short = retry->value; |
369 | changed |= WIPHY_PARAM_RETRY_SHORT; |
370 | } else { |
371 | wdev->wiphy->retry_short = retry->value; |
372 | wdev->wiphy->retry_long = retry->value; |
373 | changed |= WIPHY_PARAM_RETRY_LONG; |
374 | changed |= WIPHY_PARAM_RETRY_SHORT; |
375 | } |
376 | |
377 | err = rdev_set_wiphy_params(rdev, changed); |
378 | if (err) { |
379 | wdev->wiphy->retry_short = oshort; |
380 | wdev->wiphy->retry_long = olong; |
381 | } |
382 | wiphy_unlock(wiphy: &rdev->wiphy); |
383 | |
384 | return err; |
385 | } |
386 | |
387 | int cfg80211_wext_giwretry(struct net_device *dev, |
388 | struct iw_request_info *info, |
389 | union iwreq_data *wrqu, char *) |
390 | { |
391 | struct iw_param *retry = &wrqu->retry; |
392 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
393 | |
394 | retry->disabled = 0; |
395 | |
396 | if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) { |
397 | /* |
398 | * First return short value, iwconfig will ask long value |
399 | * later if needed |
400 | */ |
401 | retry->flags |= IW_RETRY_LIMIT | IW_RETRY_SHORT; |
402 | retry->value = wdev->wiphy->retry_short; |
403 | if (wdev->wiphy->retry_long == wdev->wiphy->retry_short) |
404 | retry->flags |= IW_RETRY_LONG; |
405 | |
406 | return 0; |
407 | } |
408 | |
409 | if (retry->flags & IW_RETRY_LONG) { |
410 | retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; |
411 | retry->value = wdev->wiphy->retry_long; |
412 | } |
413 | |
414 | return 0; |
415 | } |
416 | EXPORT_WEXT_HANDLER(cfg80211_wext_giwretry); |
417 | |
418 | static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, |
419 | struct net_device *dev, bool pairwise, |
420 | const u8 *addr, bool remove, bool tx_key, |
421 | int idx, struct key_params *params) |
422 | { |
423 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
424 | int err, i; |
425 | bool rejoin = false; |
426 | |
427 | if (wdev->valid_links) |
428 | return -EINVAL; |
429 | |
430 | if (pairwise && !addr) |
431 | return -EINVAL; |
432 | |
433 | /* |
434 | * In many cases we won't actually need this, but it's better |
435 | * to do it first in case the allocation fails. Don't use wext. |
436 | */ |
437 | if (!wdev->wext.keys) { |
438 | wdev->wext.keys = kzalloc(size: sizeof(*wdev->wext.keys), |
439 | GFP_KERNEL); |
440 | if (!wdev->wext.keys) |
441 | return -ENOMEM; |
442 | for (i = 0; i < 4; i++) |
443 | wdev->wext.keys->params[i].key = |
444 | wdev->wext.keys->data[i]; |
445 | } |
446 | |
447 | if (wdev->iftype != NL80211_IFTYPE_ADHOC && |
448 | wdev->iftype != NL80211_IFTYPE_STATION) |
449 | return -EOPNOTSUPP; |
450 | |
451 | if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { |
452 | if (!wdev->connected) |
453 | return -ENOLINK; |
454 | |
455 | if (!rdev->ops->set_default_mgmt_key) |
456 | return -EOPNOTSUPP; |
457 | |
458 | if (idx < 4 || idx > 5) |
459 | return -EINVAL; |
460 | } else if (idx < 0 || idx > 3) |
461 | return -EINVAL; |
462 | |
463 | if (remove) { |
464 | err = 0; |
465 | if (wdev->connected || |
466 | (wdev->iftype == NL80211_IFTYPE_ADHOC && |
467 | wdev->u.ibss.current_bss)) { |
468 | /* |
469 | * If removing the current TX key, we will need to |
470 | * join a new IBSS without the privacy bit clear. |
471 | */ |
472 | if (idx == wdev->wext.default_key && |
473 | wdev->iftype == NL80211_IFTYPE_ADHOC) { |
474 | cfg80211_leave_ibss(rdev, dev: wdev->netdev, nowext: true); |
475 | rejoin = true; |
476 | } |
477 | |
478 | if (!pairwise && addr && |
479 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) |
480 | err = -ENOENT; |
481 | else |
482 | err = rdev_del_key(rdev, netdev: dev, link_id: -1, key_index: idx, pairwise, |
483 | mac_addr: addr); |
484 | } |
485 | wdev->wext.connect.privacy = false; |
486 | /* |
487 | * Applications using wireless extensions expect to be |
488 | * able to delete keys that don't exist, so allow that. |
489 | */ |
490 | if (err == -ENOENT) |
491 | err = 0; |
492 | if (!err) { |
493 | if (!addr && idx < 4) { |
494 | memset(wdev->wext.keys->data[idx], 0, |
495 | sizeof(wdev->wext.keys->data[idx])); |
496 | wdev->wext.keys->params[idx].key_len = 0; |
497 | wdev->wext.keys->params[idx].cipher = 0; |
498 | } |
499 | if (idx == wdev->wext.default_key) |
500 | wdev->wext.default_key = -1; |
501 | else if (idx == wdev->wext.default_mgmt_key) |
502 | wdev->wext.default_mgmt_key = -1; |
503 | } |
504 | |
505 | if (!err && rejoin) |
506 | err = cfg80211_ibss_wext_join(rdev, wdev); |
507 | |
508 | return err; |
509 | } |
510 | |
511 | if (addr) |
512 | tx_key = false; |
513 | |
514 | if (cfg80211_validate_key_settings(rdev, params, key_idx: idx, pairwise, mac_addr: addr)) |
515 | return -EINVAL; |
516 | |
517 | err = 0; |
518 | if (wdev->connected || |
519 | (wdev->iftype == NL80211_IFTYPE_ADHOC && |
520 | wdev->u.ibss.current_bss)) |
521 | err = rdev_add_key(rdev, netdev: dev, link_id: -1, key_index: idx, pairwise, mac_addr: addr, params); |
522 | else if (params->cipher != WLAN_CIPHER_SUITE_WEP40 && |
523 | params->cipher != WLAN_CIPHER_SUITE_WEP104) |
524 | return -EINVAL; |
525 | if (err) |
526 | return err; |
527 | |
528 | /* |
529 | * We only need to store WEP keys, since they're the only keys that |
530 | * can be set before a connection is established and persist after |
531 | * disconnecting. |
532 | */ |
533 | if (!addr && (params->cipher == WLAN_CIPHER_SUITE_WEP40 || |
534 | params->cipher == WLAN_CIPHER_SUITE_WEP104)) { |
535 | wdev->wext.keys->params[idx] = *params; |
536 | memcpy(wdev->wext.keys->data[idx], |
537 | params->key, params->key_len); |
538 | wdev->wext.keys->params[idx].key = |
539 | wdev->wext.keys->data[idx]; |
540 | } |
541 | |
542 | if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 || |
543 | params->cipher == WLAN_CIPHER_SUITE_WEP104) && |
544 | (tx_key || (!addr && wdev->wext.default_key == -1))) { |
545 | if (wdev->connected || |
546 | (wdev->iftype == NL80211_IFTYPE_ADHOC && |
547 | wdev->u.ibss.current_bss)) { |
548 | /* |
549 | * If we are getting a new TX key from not having |
550 | * had one before we need to join a new IBSS with |
551 | * the privacy bit set. |
552 | */ |
553 | if (wdev->iftype == NL80211_IFTYPE_ADHOC && |
554 | wdev->wext.default_key == -1) { |
555 | cfg80211_leave_ibss(rdev, dev: wdev->netdev, nowext: true); |
556 | rejoin = true; |
557 | } |
558 | err = rdev_set_default_key(rdev, netdev: dev, link_id: -1, key_index: idx, unicast: true, |
559 | multicast: true); |
560 | } |
561 | if (!err) { |
562 | wdev->wext.default_key = idx; |
563 | if (rejoin) |
564 | err = cfg80211_ibss_wext_join(rdev, wdev); |
565 | } |
566 | return err; |
567 | } |
568 | |
569 | if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC && |
570 | (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) { |
571 | if (wdev->connected || |
572 | (wdev->iftype == NL80211_IFTYPE_ADHOC && |
573 | wdev->u.ibss.current_bss)) |
574 | err = rdev_set_default_mgmt_key(rdev, netdev: dev, link_id: -1, key_index: idx); |
575 | if (!err) |
576 | wdev->wext.default_mgmt_key = idx; |
577 | return err; |
578 | } |
579 | |
580 | return 0; |
581 | } |
582 | |
583 | static int cfg80211_wext_siwencode(struct net_device *dev, |
584 | struct iw_request_info *info, |
585 | union iwreq_data *wrqu, char *keybuf) |
586 | { |
587 | struct iw_point *erq = &wrqu->encoding; |
588 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
589 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
590 | int idx, err; |
591 | bool remove = false; |
592 | struct key_params params; |
593 | |
594 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
595 | wdev->iftype != NL80211_IFTYPE_ADHOC) |
596 | return -EOPNOTSUPP; |
597 | |
598 | /* no use -- only MFP (set_default_mgmt_key) is optional */ |
599 | if (!rdev->ops->del_key || |
600 | !rdev->ops->add_key || |
601 | !rdev->ops->set_default_key) |
602 | return -EOPNOTSUPP; |
603 | |
604 | wiphy_lock(wiphy: &rdev->wiphy); |
605 | if (wdev->valid_links) { |
606 | err = -EOPNOTSUPP; |
607 | goto out; |
608 | } |
609 | |
610 | idx = erq->flags & IW_ENCODE_INDEX; |
611 | if (idx == 0) { |
612 | idx = wdev->wext.default_key; |
613 | if (idx < 0) |
614 | idx = 0; |
615 | } else if (idx < 1 || idx > 4) { |
616 | err = -EINVAL; |
617 | goto out; |
618 | } else { |
619 | idx--; |
620 | } |
621 | |
622 | if (erq->flags & IW_ENCODE_DISABLED) |
623 | remove = true; |
624 | else if (erq->length == 0) { |
625 | /* No key data - just set the default TX key index */ |
626 | err = 0; |
627 | if (wdev->connected || |
628 | (wdev->iftype == NL80211_IFTYPE_ADHOC && |
629 | wdev->u.ibss.current_bss)) |
630 | err = rdev_set_default_key(rdev, netdev: dev, link_id: -1, key_index: idx, unicast: true, |
631 | multicast: true); |
632 | if (!err) |
633 | wdev->wext.default_key = idx; |
634 | goto out; |
635 | } |
636 | |
637 | memset(¶ms, 0, sizeof(params)); |
638 | params.key = keybuf; |
639 | params.key_len = erq->length; |
640 | if (erq->length == 5) { |
641 | params.cipher = WLAN_CIPHER_SUITE_WEP40; |
642 | } else if (erq->length == 13) { |
643 | params.cipher = WLAN_CIPHER_SUITE_WEP104; |
644 | } else if (!remove) { |
645 | err = -EINVAL; |
646 | goto out; |
647 | } |
648 | |
649 | err = cfg80211_set_encryption(rdev, dev, pairwise: false, NULL, remove, |
650 | tx_key: wdev->wext.default_key == -1, |
651 | idx, params: ¶ms); |
652 | out: |
653 | wiphy_unlock(wiphy: &rdev->wiphy); |
654 | |
655 | return err; |
656 | } |
657 | |
658 | static int cfg80211_wext_siwencodeext(struct net_device *dev, |
659 | struct iw_request_info *info, |
660 | union iwreq_data *wrqu, char *) |
661 | { |
662 | struct iw_point *erq = &wrqu->encoding; |
663 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
664 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
665 | struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; |
666 | const u8 *addr; |
667 | int idx; |
668 | bool remove = false; |
669 | struct key_params params; |
670 | u32 cipher; |
671 | int ret; |
672 | |
673 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
674 | wdev->iftype != NL80211_IFTYPE_ADHOC) |
675 | return -EOPNOTSUPP; |
676 | |
677 | /* no use -- only MFP (set_default_mgmt_key) is optional */ |
678 | if (!rdev->ops->del_key || |
679 | !rdev->ops->add_key || |
680 | !rdev->ops->set_default_key) |
681 | return -EOPNOTSUPP; |
682 | |
683 | if (wdev->valid_links) |
684 | return -EOPNOTSUPP; |
685 | |
686 | switch (ext->alg) { |
687 | case IW_ENCODE_ALG_NONE: |
688 | remove = true; |
689 | cipher = 0; |
690 | break; |
691 | case IW_ENCODE_ALG_WEP: |
692 | if (ext->key_len == 5) |
693 | cipher = WLAN_CIPHER_SUITE_WEP40; |
694 | else if (ext->key_len == 13) |
695 | cipher = WLAN_CIPHER_SUITE_WEP104; |
696 | else |
697 | return -EINVAL; |
698 | break; |
699 | case IW_ENCODE_ALG_TKIP: |
700 | cipher = WLAN_CIPHER_SUITE_TKIP; |
701 | break; |
702 | case IW_ENCODE_ALG_CCMP: |
703 | cipher = WLAN_CIPHER_SUITE_CCMP; |
704 | break; |
705 | case IW_ENCODE_ALG_AES_CMAC: |
706 | cipher = WLAN_CIPHER_SUITE_AES_CMAC; |
707 | break; |
708 | default: |
709 | return -EOPNOTSUPP; |
710 | } |
711 | |
712 | if (erq->flags & IW_ENCODE_DISABLED) |
713 | remove = true; |
714 | |
715 | idx = erq->flags & IW_ENCODE_INDEX; |
716 | if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) { |
717 | if (idx < 4 || idx > 5) { |
718 | idx = wdev->wext.default_mgmt_key; |
719 | if (idx < 0) |
720 | return -EINVAL; |
721 | } else |
722 | idx--; |
723 | } else { |
724 | if (idx < 1 || idx > 4) { |
725 | idx = wdev->wext.default_key; |
726 | if (idx < 0) |
727 | return -EINVAL; |
728 | } else |
729 | idx--; |
730 | } |
731 | |
732 | addr = ext->addr.sa_data; |
733 | if (is_broadcast_ether_addr(addr)) |
734 | addr = NULL; |
735 | |
736 | memset(¶ms, 0, sizeof(params)); |
737 | params.key = ext->key; |
738 | params.key_len = ext->key_len; |
739 | params.cipher = cipher; |
740 | |
741 | if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) { |
742 | params.seq = ext->rx_seq; |
743 | params.seq_len = 6; |
744 | } |
745 | |
746 | wiphy_lock(wiphy: wdev->wiphy); |
747 | ret = cfg80211_set_encryption( |
748 | rdev, dev, |
749 | pairwise: !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), |
750 | addr, remove, |
751 | tx_key: ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, |
752 | idx, params: ¶ms); |
753 | wiphy_unlock(wiphy: wdev->wiphy); |
754 | |
755 | return ret; |
756 | } |
757 | |
758 | static int cfg80211_wext_giwencode(struct net_device *dev, |
759 | struct iw_request_info *info, |
760 | union iwreq_data *wrqu, char *keybuf) |
761 | { |
762 | struct iw_point *erq = &wrqu->encoding; |
763 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
764 | int idx; |
765 | |
766 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
767 | wdev->iftype != NL80211_IFTYPE_ADHOC) |
768 | return -EOPNOTSUPP; |
769 | |
770 | idx = erq->flags & IW_ENCODE_INDEX; |
771 | if (idx == 0) { |
772 | idx = wdev->wext.default_key; |
773 | if (idx < 0) |
774 | idx = 0; |
775 | } else if (idx < 1 || idx > 4) |
776 | return -EINVAL; |
777 | else |
778 | idx--; |
779 | |
780 | erq->flags = idx + 1; |
781 | |
782 | if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) { |
783 | erq->flags |= IW_ENCODE_DISABLED; |
784 | erq->length = 0; |
785 | return 0; |
786 | } |
787 | |
788 | erq->length = min_t(size_t, erq->length, |
789 | wdev->wext.keys->params[idx].key_len); |
790 | memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length); |
791 | erq->flags |= IW_ENCODE_ENABLED; |
792 | |
793 | return 0; |
794 | } |
795 | |
796 | static int cfg80211_wext_siwfreq(struct net_device *dev, |
797 | struct iw_request_info *info, |
798 | union iwreq_data *wrqu, char *) |
799 | { |
800 | struct iw_freq *wextfreq = &wrqu->freq; |
801 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
802 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
803 | struct cfg80211_chan_def chandef = { |
804 | .width = NL80211_CHAN_WIDTH_20_NOHT, |
805 | }; |
806 | int freq, ret; |
807 | |
808 | wiphy_lock(wiphy: &rdev->wiphy); |
809 | |
810 | switch (wdev->iftype) { |
811 | case NL80211_IFTYPE_STATION: |
812 | ret = cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); |
813 | break; |
814 | case NL80211_IFTYPE_ADHOC: |
815 | ret = cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); |
816 | break; |
817 | case NL80211_IFTYPE_MONITOR: |
818 | freq = cfg80211_wext_freq(freq: wextfreq); |
819 | if (freq < 0) { |
820 | ret = freq; |
821 | break; |
822 | } |
823 | if (freq == 0) { |
824 | ret = -EINVAL; |
825 | break; |
826 | } |
827 | chandef.center_freq1 = freq; |
828 | chandef.chan = ieee80211_get_channel(wiphy: &rdev->wiphy, freq); |
829 | if (!chandef.chan) { |
830 | ret = -EINVAL; |
831 | break; |
832 | } |
833 | ret = cfg80211_set_monitor_channel(rdev, chandef: &chandef); |
834 | break; |
835 | case NL80211_IFTYPE_MESH_POINT: |
836 | freq = cfg80211_wext_freq(freq: wextfreq); |
837 | if (freq < 0) { |
838 | ret = freq; |
839 | break; |
840 | } |
841 | if (freq == 0) { |
842 | ret = -EINVAL; |
843 | break; |
844 | } |
845 | chandef.center_freq1 = freq; |
846 | chandef.chan = ieee80211_get_channel(wiphy: &rdev->wiphy, freq); |
847 | if (!chandef.chan) { |
848 | ret = -EINVAL; |
849 | break; |
850 | } |
851 | ret = cfg80211_set_mesh_channel(rdev, wdev, chandef: &chandef); |
852 | break; |
853 | default: |
854 | ret = -EOPNOTSUPP; |
855 | break; |
856 | } |
857 | |
858 | wiphy_unlock(wiphy: &rdev->wiphy); |
859 | |
860 | return ret; |
861 | } |
862 | |
863 | static int cfg80211_wext_giwfreq(struct net_device *dev, |
864 | struct iw_request_info *info, |
865 | union iwreq_data *wrqu, char *) |
866 | { |
867 | struct iw_freq *freq = &wrqu->freq; |
868 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
869 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
870 | struct cfg80211_chan_def chandef = {}; |
871 | int ret; |
872 | |
873 | wiphy_lock(wiphy: &rdev->wiphy); |
874 | switch (wdev->iftype) { |
875 | case NL80211_IFTYPE_STATION: |
876 | ret = cfg80211_mgd_wext_giwfreq(dev, info, freq, extra); |
877 | break; |
878 | case NL80211_IFTYPE_ADHOC: |
879 | ret = cfg80211_ibss_wext_giwfreq(dev, info, freq, extra); |
880 | break; |
881 | case NL80211_IFTYPE_MONITOR: |
882 | if (!rdev->ops->get_channel) { |
883 | ret = -EINVAL; |
884 | break; |
885 | } |
886 | |
887 | ret = rdev_get_channel(rdev, wdev, link_id: 0, chandef: &chandef); |
888 | if (ret) |
889 | break; |
890 | freq->m = chandef.chan->center_freq; |
891 | freq->e = 6; |
892 | ret = 0; |
893 | break; |
894 | default: |
895 | ret = -EINVAL; |
896 | break; |
897 | } |
898 | |
899 | wiphy_unlock(wiphy: &rdev->wiphy); |
900 | |
901 | return ret; |
902 | } |
903 | |
904 | static int cfg80211_wext_siwtxpower(struct net_device *dev, |
905 | struct iw_request_info *info, |
906 | union iwreq_data *data, char *) |
907 | { |
908 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
909 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
910 | enum nl80211_tx_power_setting type; |
911 | int dbm = 0; |
912 | int ret; |
913 | |
914 | if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) |
915 | return -EINVAL; |
916 | if (data->txpower.flags & IW_TXPOW_RANGE) |
917 | return -EINVAL; |
918 | |
919 | if (!rdev->ops->set_tx_power) |
920 | return -EOPNOTSUPP; |
921 | |
922 | /* only change when not disabling */ |
923 | if (!data->txpower.disabled) { |
924 | rfkill_set_sw_state(rfkill: rdev->wiphy.rfkill, blocked: false); |
925 | |
926 | if (data->txpower.fixed) { |
927 | /* |
928 | * wext doesn't support negative values, see |
929 | * below where it's for automatic |
930 | */ |
931 | if (data->txpower.value < 0) |
932 | return -EINVAL; |
933 | dbm = data->txpower.value; |
934 | type = NL80211_TX_POWER_FIXED; |
935 | /* TODO: do regulatory check! */ |
936 | } else { |
937 | /* |
938 | * Automatic power level setting, max being the value |
939 | * passed in from userland. |
940 | */ |
941 | if (data->txpower.value < 0) { |
942 | type = NL80211_TX_POWER_AUTOMATIC; |
943 | } else { |
944 | dbm = data->txpower.value; |
945 | type = NL80211_TX_POWER_LIMITED; |
946 | } |
947 | } |
948 | } else { |
949 | if (rfkill_set_sw_state(rfkill: rdev->wiphy.rfkill, blocked: true)) |
950 | schedule_work(work: &rdev->rfkill_block); |
951 | return 0; |
952 | } |
953 | |
954 | wiphy_lock(wiphy: &rdev->wiphy); |
955 | ret = rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm)); |
956 | wiphy_unlock(wiphy: &rdev->wiphy); |
957 | |
958 | return ret; |
959 | } |
960 | |
961 | static int cfg80211_wext_giwtxpower(struct net_device *dev, |
962 | struct iw_request_info *info, |
963 | union iwreq_data *data, char *) |
964 | { |
965 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
966 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
967 | int err, val; |
968 | |
969 | if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) |
970 | return -EINVAL; |
971 | if (data->txpower.flags & IW_TXPOW_RANGE) |
972 | return -EINVAL; |
973 | |
974 | if (!rdev->ops->get_tx_power) |
975 | return -EOPNOTSUPP; |
976 | |
977 | wiphy_lock(wiphy: &rdev->wiphy); |
978 | err = rdev_get_tx_power(rdev, wdev, dbm: &val); |
979 | wiphy_unlock(wiphy: &rdev->wiphy); |
980 | if (err) |
981 | return err; |
982 | |
983 | /* well... oh well */ |
984 | data->txpower.fixed = 1; |
985 | data->txpower.disabled = rfkill_blocked(rfkill: rdev->wiphy.rfkill); |
986 | data->txpower.value = val; |
987 | data->txpower.flags = IW_TXPOW_DBM; |
988 | |
989 | return 0; |
990 | } |
991 | |
992 | static int cfg80211_set_auth_alg(struct wireless_dev *wdev, |
993 | s32 auth_alg) |
994 | { |
995 | int nr_alg = 0; |
996 | |
997 | if (!auth_alg) |
998 | return -EINVAL; |
999 | |
1000 | if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM | |
1001 | IW_AUTH_ALG_SHARED_KEY | |
1002 | IW_AUTH_ALG_LEAP)) |
1003 | return -EINVAL; |
1004 | |
1005 | if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) { |
1006 | nr_alg++; |
1007 | wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
1008 | } |
1009 | |
1010 | if (auth_alg & IW_AUTH_ALG_SHARED_KEY) { |
1011 | nr_alg++; |
1012 | wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY; |
1013 | } |
1014 | |
1015 | if (auth_alg & IW_AUTH_ALG_LEAP) { |
1016 | nr_alg++; |
1017 | wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP; |
1018 | } |
1019 | |
1020 | if (nr_alg > 1) |
1021 | wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; |
1022 | |
1023 | return 0; |
1024 | } |
1025 | |
1026 | static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions) |
1027 | { |
1028 | if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA | |
1029 | IW_AUTH_WPA_VERSION_WPA2| |
1030 | IW_AUTH_WPA_VERSION_DISABLED)) |
1031 | return -EINVAL; |
1032 | |
1033 | if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) && |
1034 | (wpa_versions & (IW_AUTH_WPA_VERSION_WPA| |
1035 | IW_AUTH_WPA_VERSION_WPA2))) |
1036 | return -EINVAL; |
1037 | |
1038 | if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) |
1039 | wdev->wext.connect.crypto.wpa_versions &= |
1040 | ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2); |
1041 | |
1042 | if (wpa_versions & IW_AUTH_WPA_VERSION_WPA) |
1043 | wdev->wext.connect.crypto.wpa_versions |= |
1044 | NL80211_WPA_VERSION_1; |
1045 | |
1046 | if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2) |
1047 | wdev->wext.connect.crypto.wpa_versions |= |
1048 | NL80211_WPA_VERSION_2; |
1049 | |
1050 | return 0; |
1051 | } |
1052 | |
1053 | static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher) |
1054 | { |
1055 | if (cipher & IW_AUTH_CIPHER_WEP40) |
1056 | wdev->wext.connect.crypto.cipher_group = |
1057 | WLAN_CIPHER_SUITE_WEP40; |
1058 | else if (cipher & IW_AUTH_CIPHER_WEP104) |
1059 | wdev->wext.connect.crypto.cipher_group = |
1060 | WLAN_CIPHER_SUITE_WEP104; |
1061 | else if (cipher & IW_AUTH_CIPHER_TKIP) |
1062 | wdev->wext.connect.crypto.cipher_group = |
1063 | WLAN_CIPHER_SUITE_TKIP; |
1064 | else if (cipher & IW_AUTH_CIPHER_CCMP) |
1065 | wdev->wext.connect.crypto.cipher_group = |
1066 | WLAN_CIPHER_SUITE_CCMP; |
1067 | else if (cipher & IW_AUTH_CIPHER_AES_CMAC) |
1068 | wdev->wext.connect.crypto.cipher_group = |
1069 | WLAN_CIPHER_SUITE_AES_CMAC; |
1070 | else if (cipher & IW_AUTH_CIPHER_NONE) |
1071 | wdev->wext.connect.crypto.cipher_group = 0; |
1072 | else |
1073 | return -EINVAL; |
1074 | |
1075 | return 0; |
1076 | } |
1077 | |
1078 | static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher) |
1079 | { |
1080 | int nr_ciphers = 0; |
1081 | u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise; |
1082 | |
1083 | if (cipher & IW_AUTH_CIPHER_WEP40) { |
1084 | ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40; |
1085 | nr_ciphers++; |
1086 | } |
1087 | |
1088 | if (cipher & IW_AUTH_CIPHER_WEP104) { |
1089 | ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104; |
1090 | nr_ciphers++; |
1091 | } |
1092 | |
1093 | if (cipher & IW_AUTH_CIPHER_TKIP) { |
1094 | ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP; |
1095 | nr_ciphers++; |
1096 | } |
1097 | |
1098 | if (cipher & IW_AUTH_CIPHER_CCMP) { |
1099 | ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP; |
1100 | nr_ciphers++; |
1101 | } |
1102 | |
1103 | if (cipher & IW_AUTH_CIPHER_AES_CMAC) { |
1104 | ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC; |
1105 | nr_ciphers++; |
1106 | } |
1107 | |
1108 | BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5); |
1109 | |
1110 | wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers; |
1111 | |
1112 | return 0; |
1113 | } |
1114 | |
1115 | |
1116 | static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) |
1117 | { |
1118 | int nr_akm_suites = 0; |
1119 | |
1120 | if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X | |
1121 | IW_AUTH_KEY_MGMT_PSK)) |
1122 | return -EINVAL; |
1123 | |
1124 | if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) { |
1125 | wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = |
1126 | WLAN_AKM_SUITE_8021X; |
1127 | nr_akm_suites++; |
1128 | } |
1129 | |
1130 | if (key_mgt & IW_AUTH_KEY_MGMT_PSK) { |
1131 | wdev->wext.connect.crypto.akm_suites[nr_akm_suites] = |
1132 | WLAN_AKM_SUITE_PSK; |
1133 | nr_akm_suites++; |
1134 | } |
1135 | |
1136 | wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites; |
1137 | |
1138 | return 0; |
1139 | } |
1140 | |
1141 | static int cfg80211_wext_siwauth(struct net_device *dev, |
1142 | struct iw_request_info *info, |
1143 | union iwreq_data *wrqu, char *) |
1144 | { |
1145 | struct iw_param *data = &wrqu->param; |
1146 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1147 | |
1148 | if (wdev->iftype != NL80211_IFTYPE_STATION) |
1149 | return -EOPNOTSUPP; |
1150 | |
1151 | switch (data->flags & IW_AUTH_INDEX) { |
1152 | case IW_AUTH_PRIVACY_INVOKED: |
1153 | wdev->wext.connect.privacy = data->value; |
1154 | return 0; |
1155 | case IW_AUTH_WPA_VERSION: |
1156 | return cfg80211_set_wpa_version(wdev, wpa_versions: data->value); |
1157 | case IW_AUTH_CIPHER_GROUP: |
1158 | return cfg80211_set_cipher_group(wdev, cipher: data->value); |
1159 | case IW_AUTH_KEY_MGMT: |
1160 | return cfg80211_set_key_mgt(wdev, key_mgt: data->value); |
1161 | case IW_AUTH_CIPHER_PAIRWISE: |
1162 | return cfg80211_set_cipher_pairwise(wdev, cipher: data->value); |
1163 | case IW_AUTH_80211_AUTH_ALG: |
1164 | return cfg80211_set_auth_alg(wdev, auth_alg: data->value); |
1165 | case IW_AUTH_WPA_ENABLED: |
1166 | case IW_AUTH_RX_UNENCRYPTED_EAPOL: |
1167 | case IW_AUTH_DROP_UNENCRYPTED: |
1168 | case IW_AUTH_MFP: |
1169 | return 0; |
1170 | default: |
1171 | return -EOPNOTSUPP; |
1172 | } |
1173 | } |
1174 | |
1175 | static int cfg80211_wext_giwauth(struct net_device *dev, |
1176 | struct iw_request_info *info, |
1177 | union iwreq_data *wrqu, char *) |
1178 | { |
1179 | /* XXX: what do we need? */ |
1180 | |
1181 | return -EOPNOTSUPP; |
1182 | } |
1183 | |
1184 | static int cfg80211_wext_siwpower(struct net_device *dev, |
1185 | struct iw_request_info *info, |
1186 | union iwreq_data *wrqu, char *) |
1187 | { |
1188 | struct iw_param *wrq = &wrqu->power; |
1189 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1190 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
1191 | bool ps; |
1192 | int timeout = wdev->ps_timeout; |
1193 | int err; |
1194 | |
1195 | if (wdev->iftype != NL80211_IFTYPE_STATION) |
1196 | return -EINVAL; |
1197 | |
1198 | if (!rdev->ops->set_power_mgmt) |
1199 | return -EOPNOTSUPP; |
1200 | |
1201 | if (wrq->disabled) { |
1202 | ps = false; |
1203 | } else { |
1204 | switch (wrq->flags & IW_POWER_MODE) { |
1205 | case IW_POWER_ON: /* If not specified */ |
1206 | case IW_POWER_MODE: /* If set all mask */ |
1207 | case IW_POWER_ALL_R: /* If explicitely state all */ |
1208 | ps = true; |
1209 | break; |
1210 | default: /* Otherwise we ignore */ |
1211 | return -EINVAL; |
1212 | } |
1213 | |
1214 | if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT)) |
1215 | return -EINVAL; |
1216 | |
1217 | if (wrq->flags & IW_POWER_TIMEOUT) |
1218 | timeout = wrq->value / 1000; |
1219 | } |
1220 | |
1221 | wiphy_lock(wiphy: &rdev->wiphy); |
1222 | err = rdev_set_power_mgmt(rdev, dev, enabled: ps, timeout); |
1223 | wiphy_unlock(wiphy: &rdev->wiphy); |
1224 | if (err) |
1225 | return err; |
1226 | |
1227 | wdev->ps = ps; |
1228 | wdev->ps_timeout = timeout; |
1229 | |
1230 | return 0; |
1231 | |
1232 | } |
1233 | |
1234 | static int cfg80211_wext_giwpower(struct net_device *dev, |
1235 | struct iw_request_info *info, |
1236 | union iwreq_data *wrqu, char *) |
1237 | { |
1238 | struct iw_param *wrq = &wrqu->power; |
1239 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1240 | |
1241 | wrq->disabled = !wdev->ps; |
1242 | |
1243 | return 0; |
1244 | } |
1245 | |
1246 | static int cfg80211_wext_siwrate(struct net_device *dev, |
1247 | struct iw_request_info *info, |
1248 | union iwreq_data *wrqu, char *) |
1249 | { |
1250 | struct iw_param *rate = &wrqu->bitrate; |
1251 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1252 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
1253 | struct cfg80211_bitrate_mask mask; |
1254 | u32 fixed, maxrate; |
1255 | struct ieee80211_supported_band *sband; |
1256 | int band, ridx, ret; |
1257 | bool match = false; |
1258 | |
1259 | if (!rdev->ops->set_bitrate_mask) |
1260 | return -EOPNOTSUPP; |
1261 | |
1262 | memset(&mask, 0, sizeof(mask)); |
1263 | fixed = 0; |
1264 | maxrate = (u32)-1; |
1265 | |
1266 | if (rate->value < 0) { |
1267 | /* nothing */ |
1268 | } else if (rate->fixed) { |
1269 | fixed = rate->value / 100000; |
1270 | } else { |
1271 | maxrate = rate->value / 100000; |
1272 | } |
1273 | |
1274 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
1275 | sband = wdev->wiphy->bands[band]; |
1276 | if (sband == NULL) |
1277 | continue; |
1278 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { |
1279 | struct ieee80211_rate *srate = &sband->bitrates[ridx]; |
1280 | if (fixed == srate->bitrate) { |
1281 | mask.control[band].legacy = 1 << ridx; |
1282 | match = true; |
1283 | break; |
1284 | } |
1285 | if (srate->bitrate <= maxrate) { |
1286 | mask.control[band].legacy |= 1 << ridx; |
1287 | match = true; |
1288 | } |
1289 | } |
1290 | } |
1291 | |
1292 | if (!match) |
1293 | return -EINVAL; |
1294 | |
1295 | wiphy_lock(wiphy: &rdev->wiphy); |
1296 | if (dev->ieee80211_ptr->valid_links) |
1297 | ret = -EOPNOTSUPP; |
1298 | else |
1299 | ret = rdev_set_bitrate_mask(rdev, dev, link_id: 0, NULL, mask: &mask); |
1300 | wiphy_unlock(wiphy: &rdev->wiphy); |
1301 | |
1302 | return ret; |
1303 | } |
1304 | |
1305 | static int cfg80211_wext_giwrate(struct net_device *dev, |
1306 | struct iw_request_info *info, |
1307 | union iwreq_data *wrqu, char *) |
1308 | { |
1309 | struct iw_param *rate = &wrqu->bitrate; |
1310 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1311 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
1312 | struct station_info sinfo = {}; |
1313 | u8 addr[ETH_ALEN]; |
1314 | int err; |
1315 | |
1316 | if (wdev->iftype != NL80211_IFTYPE_STATION) |
1317 | return -EOPNOTSUPP; |
1318 | |
1319 | if (!rdev->ops->get_station) |
1320 | return -EOPNOTSUPP; |
1321 | |
1322 | err = 0; |
1323 | if (!wdev->valid_links && wdev->links[0].client.current_bss) |
1324 | memcpy(addr, wdev->links[0].client.current_bss->pub.bssid, |
1325 | ETH_ALEN); |
1326 | else |
1327 | err = -EOPNOTSUPP; |
1328 | if (err) |
1329 | return err; |
1330 | |
1331 | wiphy_lock(wiphy: &rdev->wiphy); |
1332 | err = rdev_get_station(rdev, dev, mac: addr, sinfo: &sinfo); |
1333 | wiphy_unlock(wiphy: &rdev->wiphy); |
1334 | if (err) |
1335 | return err; |
1336 | |
1337 | if (!(sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE))) { |
1338 | err = -EOPNOTSUPP; |
1339 | goto free; |
1340 | } |
1341 | |
1342 | rate->value = 100000 * cfg80211_calculate_bitrate(rate: &sinfo.txrate); |
1343 | |
1344 | free: |
1345 | cfg80211_sinfo_release_content(sinfo: &sinfo); |
1346 | return err; |
1347 | } |
1348 | |
1349 | /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ |
1350 | static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) |
1351 | { |
1352 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1353 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
1354 | /* we are under RTNL - globally locked - so can use static structs */ |
1355 | static struct iw_statistics wstats; |
1356 | static struct station_info sinfo = {}; |
1357 | u8 bssid[ETH_ALEN]; |
1358 | int ret; |
1359 | |
1360 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) |
1361 | return NULL; |
1362 | |
1363 | if (!rdev->ops->get_station) |
1364 | return NULL; |
1365 | |
1366 | /* Grab BSSID of current BSS, if any */ |
1367 | wiphy_lock(wiphy: &rdev->wiphy); |
1368 | if (wdev->valid_links || !wdev->links[0].client.current_bss) { |
1369 | wiphy_unlock(wiphy: &rdev->wiphy); |
1370 | return NULL; |
1371 | } |
1372 | memcpy(bssid, wdev->links[0].client.current_bss->pub.bssid, ETH_ALEN); |
1373 | |
1374 | memset(&sinfo, 0, sizeof(sinfo)); |
1375 | |
1376 | ret = rdev_get_station(rdev, dev, mac: bssid, sinfo: &sinfo); |
1377 | wiphy_unlock(wiphy: &rdev->wiphy); |
1378 | |
1379 | if (ret) |
1380 | return NULL; |
1381 | |
1382 | memset(&wstats, 0, sizeof(wstats)); |
1383 | |
1384 | switch (rdev->wiphy.signal_type) { |
1385 | case CFG80211_SIGNAL_TYPE_MBM: |
1386 | if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_SIGNAL)) { |
1387 | int sig = sinfo.signal; |
1388 | wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; |
1389 | wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; |
1390 | wstats.qual.updated |= IW_QUAL_DBM; |
1391 | wstats.qual.level = sig; |
1392 | if (sig < -110) |
1393 | sig = -110; |
1394 | else if (sig > -40) |
1395 | sig = -40; |
1396 | wstats.qual.qual = sig + 110; |
1397 | break; |
1398 | } |
1399 | fallthrough; |
1400 | case CFG80211_SIGNAL_TYPE_UNSPEC: |
1401 | if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_SIGNAL)) { |
1402 | wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; |
1403 | wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; |
1404 | wstats.qual.level = sinfo.signal; |
1405 | wstats.qual.qual = sinfo.signal; |
1406 | break; |
1407 | } |
1408 | fallthrough; |
1409 | default: |
1410 | wstats.qual.updated |= IW_QUAL_LEVEL_INVALID; |
1411 | wstats.qual.updated |= IW_QUAL_QUAL_INVALID; |
1412 | } |
1413 | |
1414 | wstats.qual.updated |= IW_QUAL_NOISE_INVALID; |
1415 | if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_RX_DROP_MISC)) |
1416 | wstats.discard.misc = sinfo.rx_dropped_misc; |
1417 | if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_FAILED)) |
1418 | wstats.discard.retries = sinfo.tx_failed; |
1419 | |
1420 | cfg80211_sinfo_release_content(sinfo: &sinfo); |
1421 | |
1422 | return &wstats; |
1423 | } |
1424 | |
1425 | static int cfg80211_wext_siwap(struct net_device *dev, |
1426 | struct iw_request_info *info, |
1427 | union iwreq_data *wrqu, char *) |
1428 | { |
1429 | struct sockaddr *ap_addr = &wrqu->ap_addr; |
1430 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1431 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
1432 | int ret; |
1433 | |
1434 | wiphy_lock(wiphy: &rdev->wiphy); |
1435 | switch (wdev->iftype) { |
1436 | case NL80211_IFTYPE_ADHOC: |
1437 | ret = cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra); |
1438 | break; |
1439 | case NL80211_IFTYPE_STATION: |
1440 | ret = cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra); |
1441 | break; |
1442 | default: |
1443 | ret = -EOPNOTSUPP; |
1444 | break; |
1445 | } |
1446 | wiphy_unlock(wiphy: &rdev->wiphy); |
1447 | |
1448 | return ret; |
1449 | } |
1450 | |
1451 | static int cfg80211_wext_giwap(struct net_device *dev, |
1452 | struct iw_request_info *info, |
1453 | union iwreq_data *wrqu, char *) |
1454 | { |
1455 | struct sockaddr *ap_addr = &wrqu->ap_addr; |
1456 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1457 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
1458 | int ret; |
1459 | |
1460 | wiphy_lock(wiphy: &rdev->wiphy); |
1461 | switch (wdev->iftype) { |
1462 | case NL80211_IFTYPE_ADHOC: |
1463 | ret = cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra); |
1464 | break; |
1465 | case NL80211_IFTYPE_STATION: |
1466 | ret = cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra); |
1467 | break; |
1468 | default: |
1469 | ret = -EOPNOTSUPP; |
1470 | break; |
1471 | } |
1472 | wiphy_unlock(wiphy: &rdev->wiphy); |
1473 | |
1474 | return ret; |
1475 | } |
1476 | |
1477 | static int cfg80211_wext_siwessid(struct net_device *dev, |
1478 | struct iw_request_info *info, |
1479 | union iwreq_data *wrqu, char *ssid) |
1480 | { |
1481 | struct iw_point *data = &wrqu->data; |
1482 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1483 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
1484 | int ret; |
1485 | |
1486 | wiphy_lock(wiphy: &rdev->wiphy); |
1487 | switch (wdev->iftype) { |
1488 | case NL80211_IFTYPE_ADHOC: |
1489 | ret = cfg80211_ibss_wext_siwessid(dev, info, data, ssid); |
1490 | break; |
1491 | case NL80211_IFTYPE_STATION: |
1492 | ret = cfg80211_mgd_wext_siwessid(dev, info, data, ssid); |
1493 | break; |
1494 | default: |
1495 | ret = -EOPNOTSUPP; |
1496 | break; |
1497 | } |
1498 | wiphy_unlock(wiphy: &rdev->wiphy); |
1499 | |
1500 | return ret; |
1501 | } |
1502 | |
1503 | static int cfg80211_wext_giwessid(struct net_device *dev, |
1504 | struct iw_request_info *info, |
1505 | union iwreq_data *wrqu, char *ssid) |
1506 | { |
1507 | struct iw_point *data = &wrqu->data; |
1508 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1509 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
1510 | int ret; |
1511 | |
1512 | data->flags = 0; |
1513 | data->length = 0; |
1514 | |
1515 | wiphy_lock(wiphy: &rdev->wiphy); |
1516 | switch (wdev->iftype) { |
1517 | case NL80211_IFTYPE_ADHOC: |
1518 | ret = cfg80211_ibss_wext_giwessid(dev, info, data, ssid); |
1519 | break; |
1520 | case NL80211_IFTYPE_STATION: |
1521 | ret = cfg80211_mgd_wext_giwessid(dev, info, data, ssid); |
1522 | break; |
1523 | default: |
1524 | ret = -EOPNOTSUPP; |
1525 | break; |
1526 | } |
1527 | wiphy_unlock(wiphy: &rdev->wiphy); |
1528 | |
1529 | return ret; |
1530 | } |
1531 | |
1532 | static int cfg80211_wext_siwpmksa(struct net_device *dev, |
1533 | struct iw_request_info *info, |
1534 | union iwreq_data *wrqu, char *) |
1535 | { |
1536 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1537 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy: wdev->wiphy); |
1538 | struct cfg80211_pmksa cfg_pmksa; |
1539 | struct iw_pmksa *pmksa = (struct iw_pmksa *)extra; |
1540 | int ret; |
1541 | |
1542 | memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa)); |
1543 | |
1544 | if (wdev->iftype != NL80211_IFTYPE_STATION) |
1545 | return -EINVAL; |
1546 | |
1547 | cfg_pmksa.bssid = pmksa->bssid.sa_data; |
1548 | cfg_pmksa.pmkid = pmksa->pmkid; |
1549 | |
1550 | wiphy_lock(wiphy: &rdev->wiphy); |
1551 | switch (pmksa->cmd) { |
1552 | case IW_PMKSA_ADD: |
1553 | if (!rdev->ops->set_pmksa) { |
1554 | ret = -EOPNOTSUPP; |
1555 | break; |
1556 | } |
1557 | |
1558 | ret = rdev_set_pmksa(rdev, netdev: dev, pmksa: &cfg_pmksa); |
1559 | break; |
1560 | case IW_PMKSA_REMOVE: |
1561 | if (!rdev->ops->del_pmksa) { |
1562 | ret = -EOPNOTSUPP; |
1563 | break; |
1564 | } |
1565 | |
1566 | ret = rdev_del_pmksa(rdev, netdev: dev, pmksa: &cfg_pmksa); |
1567 | break; |
1568 | case IW_PMKSA_FLUSH: |
1569 | if (!rdev->ops->flush_pmksa) { |
1570 | ret = -EOPNOTSUPP; |
1571 | break; |
1572 | } |
1573 | |
1574 | ret = rdev_flush_pmksa(rdev, netdev: dev); |
1575 | break; |
1576 | default: |
1577 | ret = -EOPNOTSUPP; |
1578 | break; |
1579 | } |
1580 | wiphy_unlock(wiphy: &rdev->wiphy); |
1581 | |
1582 | return ret; |
1583 | } |
1584 | |
1585 | static const iw_handler cfg80211_handlers[] = { |
1586 | IW_HANDLER(SIOCGIWNAME, cfg80211_wext_giwname), |
1587 | IW_HANDLER(SIOCSIWFREQ, cfg80211_wext_siwfreq), |
1588 | IW_HANDLER(SIOCGIWFREQ, cfg80211_wext_giwfreq), |
1589 | IW_HANDLER(SIOCSIWMODE, cfg80211_wext_siwmode), |
1590 | IW_HANDLER(SIOCGIWMODE, cfg80211_wext_giwmode), |
1591 | IW_HANDLER(SIOCGIWRANGE, cfg80211_wext_giwrange), |
1592 | IW_HANDLER(SIOCSIWAP, cfg80211_wext_siwap), |
1593 | IW_HANDLER(SIOCGIWAP, cfg80211_wext_giwap), |
1594 | IW_HANDLER(SIOCSIWMLME, cfg80211_wext_siwmlme), |
1595 | IW_HANDLER(SIOCSIWSCAN, cfg80211_wext_siwscan), |
1596 | IW_HANDLER(SIOCGIWSCAN, cfg80211_wext_giwscan), |
1597 | IW_HANDLER(SIOCSIWESSID, cfg80211_wext_siwessid), |
1598 | IW_HANDLER(SIOCGIWESSID, cfg80211_wext_giwessid), |
1599 | IW_HANDLER(SIOCSIWRATE, cfg80211_wext_siwrate), |
1600 | IW_HANDLER(SIOCGIWRATE, cfg80211_wext_giwrate), |
1601 | IW_HANDLER(SIOCSIWRTS, cfg80211_wext_siwrts), |
1602 | IW_HANDLER(SIOCGIWRTS, cfg80211_wext_giwrts), |
1603 | IW_HANDLER(SIOCSIWFRAG, cfg80211_wext_siwfrag), |
1604 | IW_HANDLER(SIOCGIWFRAG, cfg80211_wext_giwfrag), |
1605 | IW_HANDLER(SIOCSIWTXPOW, cfg80211_wext_siwtxpower), |
1606 | IW_HANDLER(SIOCGIWTXPOW, cfg80211_wext_giwtxpower), |
1607 | IW_HANDLER(SIOCSIWRETRY, cfg80211_wext_siwretry), |
1608 | IW_HANDLER(SIOCGIWRETRY, cfg80211_wext_giwretry), |
1609 | IW_HANDLER(SIOCSIWENCODE, cfg80211_wext_siwencode), |
1610 | IW_HANDLER(SIOCGIWENCODE, cfg80211_wext_giwencode), |
1611 | IW_HANDLER(SIOCSIWPOWER, cfg80211_wext_siwpower), |
1612 | IW_HANDLER(SIOCGIWPOWER, cfg80211_wext_giwpower), |
1613 | IW_HANDLER(SIOCSIWGENIE, cfg80211_wext_siwgenie), |
1614 | IW_HANDLER(SIOCSIWAUTH, cfg80211_wext_siwauth), |
1615 | IW_HANDLER(SIOCGIWAUTH, cfg80211_wext_giwauth), |
1616 | IW_HANDLER(SIOCSIWENCODEEXT, cfg80211_wext_siwencodeext), |
1617 | IW_HANDLER(SIOCSIWPMKSA, cfg80211_wext_siwpmksa), |
1618 | }; |
1619 | |
1620 | const struct iw_handler_def cfg80211_wext_handler = { |
1621 | .num_standard = ARRAY_SIZE(cfg80211_handlers), |
1622 | .standard = cfg80211_handlers, |
1623 | .get_wireless_stats = cfg80211_wireless_stats, |
1624 | }; |
1625 | |