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Commit | Line | Data |
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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 | * | |
8 | * Copyright 2008 Johannes Berg <johannes@sipsolutions.net> | |
9 | */ | |
10 | ||
11 | #include <linux/wireless.h> | |
12 | #include <linux/nl80211.h> | |
691597cb | 13 | #include <linux/if_arp.h> |
fee52678 | 14 | #include <net/iw_handler.h> |
fee52678 JB |
15 | #include <net/cfg80211.h> |
16 | #include "core.h" | |
17 | ||
18 | int cfg80211_wext_giwname(struct net_device *dev, | |
19 | struct iw_request_info *info, | |
20 | char *name, char *extra) | |
21 | { | |
22 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
23 | struct ieee80211_supported_band *sband; | |
24 | bool is_ht = false, is_a = false, is_b = false, is_g = false; | |
25 | ||
26 | if (!wdev) | |
27 | return -EOPNOTSUPP; | |
28 | ||
29 | sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ]; | |
30 | if (sband) { | |
31 | is_a = true; | |
32 | is_ht |= sband->ht_cap.ht_supported; | |
33 | } | |
34 | ||
35 | sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ]; | |
36 | if (sband) { | |
37 | int i; | |
38 | /* Check for mandatory rates */ | |
39 | for (i = 0; i < sband->n_bitrates; i++) { | |
40 | if (sband->bitrates[i].bitrate == 10) | |
41 | is_b = true; | |
42 | if (sband->bitrates[i].bitrate == 60) | |
43 | is_g = true; | |
44 | } | |
45 | is_ht |= sband->ht_cap.ht_supported; | |
46 | } | |
47 | ||
48 | strcpy(name, "IEEE 802.11"); | |
49 | if (is_a) | |
50 | strcat(name, "a"); | |
51 | if (is_b) | |
52 | strcat(name, "b"); | |
53 | if (is_g) | |
54 | strcat(name, "g"); | |
55 | if (is_ht) | |
56 | strcat(name, "n"); | |
57 | ||
58 | return 0; | |
59 | } | |
ba44cb72 | 60 | EXPORT_SYMBOL_GPL(cfg80211_wext_giwname); |
e60c7744 JB |
61 | |
62 | int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, | |
63 | u32 *mode, char *extra) | |
64 | { | |
65 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
66 | struct cfg80211_registered_device *rdev; | |
67 | struct vif_params vifparams; | |
68 | enum nl80211_iftype type; | |
ac7f9cfa | 69 | int ret; |
e60c7744 JB |
70 | |
71 | if (!wdev) | |
72 | return -EOPNOTSUPP; | |
73 | ||
74 | rdev = wiphy_to_dev(wdev->wiphy); | |
75 | ||
76 | if (!rdev->ops->change_virtual_intf) | |
77 | return -EOPNOTSUPP; | |
78 | ||
79 | /* don't support changing VLANs, you just re-create them */ | |
80 | if (wdev->iftype == NL80211_IFTYPE_AP_VLAN) | |
81 | return -EOPNOTSUPP; | |
82 | ||
83 | switch (*mode) { | |
84 | case IW_MODE_INFRA: | |
85 | type = NL80211_IFTYPE_STATION; | |
86 | break; | |
87 | case IW_MODE_ADHOC: | |
88 | type = NL80211_IFTYPE_ADHOC; | |
89 | break; | |
90 | case IW_MODE_REPEAT: | |
91 | type = NL80211_IFTYPE_WDS; | |
92 | break; | |
93 | case IW_MODE_MONITOR: | |
94 | type = NL80211_IFTYPE_MONITOR; | |
95 | break; | |
96 | default: | |
97 | return -EINVAL; | |
98 | } | |
99 | ||
ac7f9cfa JB |
100 | if (type == wdev->iftype) |
101 | return 0; | |
102 | ||
e60c7744 JB |
103 | memset(&vifparams, 0, sizeof(vifparams)); |
104 | ||
ac7f9cfa JB |
105 | ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev->ifindex, type, |
106 | NULL, &vifparams); | |
107 | WARN_ON(!ret && wdev->iftype != type); | |
108 | ||
109 | return ret; | |
e60c7744 | 110 | } |
ba44cb72 | 111 | EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode); |
e60c7744 JB |
112 | |
113 | int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, | |
114 | u32 *mode, char *extra) | |
115 | { | |
116 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
117 | ||
118 | if (!wdev) | |
119 | return -EOPNOTSUPP; | |
120 | ||
121 | switch (wdev->iftype) { | |
122 | case NL80211_IFTYPE_AP: | |
123 | *mode = IW_MODE_MASTER; | |
124 | break; | |
125 | case NL80211_IFTYPE_STATION: | |
126 | *mode = IW_MODE_INFRA; | |
127 | break; | |
128 | case NL80211_IFTYPE_ADHOC: | |
129 | *mode = IW_MODE_ADHOC; | |
130 | break; | |
131 | case NL80211_IFTYPE_MONITOR: | |
132 | *mode = IW_MODE_MONITOR; | |
133 | break; | |
134 | case NL80211_IFTYPE_WDS: | |
135 | *mode = IW_MODE_REPEAT; | |
136 | break; | |
137 | case NL80211_IFTYPE_AP_VLAN: | |
138 | *mode = IW_MODE_SECOND; /* FIXME */ | |
139 | break; | |
140 | default: | |
141 | *mode = IW_MODE_AUTO; | |
142 | break; | |
143 | } | |
144 | return 0; | |
145 | } | |
ba44cb72 | 146 | EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode); |
4aa188e1 JB |
147 | |
148 | ||
149 | int cfg80211_wext_giwrange(struct net_device *dev, | |
150 | struct iw_request_info *info, | |
151 | struct iw_point *data, char *extra) | |
152 | { | |
153 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
154 | struct iw_range *range = (struct iw_range *) extra; | |
155 | enum ieee80211_band band; | |
156 | int c = 0; | |
157 | ||
158 | if (!wdev) | |
159 | return -EOPNOTSUPP; | |
160 | ||
161 | data->length = sizeof(struct iw_range); | |
162 | memset(range, 0, sizeof(struct iw_range)); | |
163 | ||
164 | range->we_version_compiled = WIRELESS_EXT; | |
165 | range->we_version_source = 21; | |
166 | range->retry_capa = IW_RETRY_LIMIT; | |
167 | range->retry_flags = IW_RETRY_LIMIT; | |
168 | range->min_retry = 0; | |
169 | range->max_retry = 255; | |
170 | range->min_rts = 0; | |
171 | range->max_rts = 2347; | |
172 | range->min_frag = 256; | |
173 | range->max_frag = 2346; | |
174 | ||
175 | range->encoding_size[0] = 5; | |
176 | range->encoding_size[1] = 13; | |
177 | range->num_encoding_sizes = 2; | |
178 | range->max_encoding_tokens = 4; | |
179 | ||
180 | range->max_qual.updated = IW_QUAL_NOISE_INVALID; | |
181 | ||
182 | switch (wdev->wiphy->signal_type) { | |
183 | case CFG80211_SIGNAL_TYPE_NONE: | |
184 | break; | |
185 | case CFG80211_SIGNAL_TYPE_MBM: | |
186 | range->max_qual.level = -110; | |
187 | range->max_qual.qual = 70; | |
188 | range->avg_qual.qual = 35; | |
189 | range->max_qual.updated |= IW_QUAL_DBM; | |
190 | range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; | |
191 | range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; | |
192 | break; | |
193 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
194 | range->max_qual.level = 100; | |
195 | range->max_qual.qual = 100; | |
196 | range->avg_qual.qual = 50; | |
197 | range->max_qual.updated |= IW_QUAL_QUAL_UPDATED; | |
198 | range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED; | |
199 | break; | |
200 | } | |
201 | ||
202 | range->avg_qual.level = range->max_qual.level / 2; | |
203 | range->avg_qual.noise = range->max_qual.noise / 2; | |
204 | range->avg_qual.updated = range->max_qual.updated; | |
205 | ||
206 | range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | | |
207 | IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; | |
208 | ||
4aa188e1 JB |
209 | for (band = 0; band < IEEE80211_NUM_BANDS; band ++) { |
210 | int i; | |
211 | struct ieee80211_supported_band *sband; | |
212 | ||
213 | sband = wdev->wiphy->bands[band]; | |
214 | ||
215 | if (!sband) | |
216 | continue; | |
217 | ||
218 | for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { | |
219 | struct ieee80211_channel *chan = &sband->channels[i]; | |
220 | ||
221 | if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { | |
222 | range->freq[c].i = | |
223 | ieee80211_frequency_to_channel( | |
224 | chan->center_freq); | |
225 | range->freq[c].m = chan->center_freq; | |
226 | range->freq[c].e = 6; | |
227 | c++; | |
228 | } | |
229 | } | |
230 | } | |
231 | range->num_channels = c; | |
232 | range->num_frequency = c; | |
233 | ||
234 | IW_EVENT_CAPA_SET_KERNEL(range->event_capa); | |
235 | IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); | |
236 | IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); | |
237 | ||
238 | range->scan_capa |= IW_SCAN_CAPA_ESSID; | |
239 | ||
240 | return 0; | |
241 | } | |
ba44cb72 | 242 | EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange); |
691597cb JB |
243 | |
244 | int cfg80211_wext_siwmlme(struct net_device *dev, | |
245 | struct iw_request_info *info, | |
246 | struct iw_point *data, char *extra) | |
247 | { | |
248 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
249 | struct iw_mlme *mlme = (struct iw_mlme *)extra; | |
250 | struct cfg80211_registered_device *rdev; | |
251 | union { | |
252 | struct cfg80211_disassoc_request disassoc; | |
253 | struct cfg80211_deauth_request deauth; | |
254 | } cmd; | |
255 | ||
256 | if (!wdev) | |
257 | return -EOPNOTSUPP; | |
258 | ||
259 | rdev = wiphy_to_dev(wdev->wiphy); | |
260 | ||
261 | if (wdev->iftype != NL80211_IFTYPE_STATION) | |
262 | return -EINVAL; | |
263 | ||
264 | if (mlme->addr.sa_family != ARPHRD_ETHER) | |
265 | return -EINVAL; | |
266 | ||
267 | memset(&cmd, 0, sizeof(cmd)); | |
268 | ||
269 | switch (mlme->cmd) { | |
270 | case IW_MLME_DEAUTH: | |
271 | if (!rdev->ops->deauth) | |
272 | return -EOPNOTSUPP; | |
273 | cmd.deauth.peer_addr = mlme->addr.sa_data; | |
274 | cmd.deauth.reason_code = mlme->reason_code; | |
275 | return rdev->ops->deauth(wdev->wiphy, dev, &cmd.deauth); | |
276 | case IW_MLME_DISASSOC: | |
277 | if (!rdev->ops->disassoc) | |
278 | return -EOPNOTSUPP; | |
279 | cmd.disassoc.peer_addr = mlme->addr.sa_data; | |
280 | cmd.disassoc.reason_code = mlme->reason_code; | |
281 | return rdev->ops->disassoc(wdev->wiphy, dev, &cmd.disassoc); | |
282 | default: | |
283 | return -EOPNOTSUPP; | |
284 | } | |
285 | } | |
ba44cb72 | 286 | EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme); |
04a773ad JB |
287 | |
288 | ||
289 | /** | |
290 | * cfg80211_wext_freq - get wext frequency for non-"auto" | |
291 | * @wiphy: the wiphy | |
292 | * @freq: the wext freq encoding | |
293 | * | |
294 | * Returns a channel, %NULL for auto, or an ERR_PTR for errors! | |
295 | */ | |
296 | struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy, | |
297 | struct iw_freq *freq) | |
298 | { | |
0b258582 JB |
299 | struct ieee80211_channel *chan; |
300 | int f; | |
301 | ||
302 | /* | |
303 | * Parse frequency - return NULL for auto and | |
304 | * -EINVAL for impossible things. | |
305 | */ | |
04a773ad JB |
306 | if (freq->e == 0) { |
307 | if (freq->m < 0) | |
308 | return NULL; | |
0b258582 | 309 | f = ieee80211_channel_to_frequency(freq->m); |
04a773ad JB |
310 | } else { |
311 | int i, div = 1000000; | |
312 | for (i = 0; i < freq->e; i++) | |
313 | div /= 10; | |
0b258582 | 314 | if (div <= 0) |
04a773ad | 315 | return ERR_PTR(-EINVAL); |
0b258582 | 316 | f = freq->m / div; |
04a773ad JB |
317 | } |
318 | ||
0b258582 JB |
319 | /* |
320 | * Look up channel struct and return -EINVAL when | |
321 | * it cannot be found. | |
322 | */ | |
323 | chan = ieee80211_get_channel(wiphy, f); | |
324 | if (!chan) | |
325 | return ERR_PTR(-EINVAL); | |
326 | return chan; | |
04a773ad | 327 | } |
ba44cb72 | 328 | EXPORT_SYMBOL_GPL(cfg80211_wext_freq); |
b9a5f8ca JM |
329 | |
330 | int cfg80211_wext_siwrts(struct net_device *dev, | |
331 | struct iw_request_info *info, | |
332 | struct iw_param *rts, char *extra) | |
333 | { | |
334 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
335 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
336 | u32 orts = wdev->wiphy->rts_threshold; | |
337 | int err; | |
338 | ||
339 | if (rts->disabled || !rts->fixed) | |
340 | wdev->wiphy->rts_threshold = (u32) -1; | |
341 | else if (rts->value < 0) | |
342 | return -EINVAL; | |
343 | else | |
344 | wdev->wiphy->rts_threshold = rts->value; | |
345 | ||
346 | err = rdev->ops->set_wiphy_params(wdev->wiphy, | |
347 | WIPHY_PARAM_RTS_THRESHOLD); | |
348 | if (err) | |
349 | wdev->wiphy->rts_threshold = orts; | |
350 | ||
351 | return err; | |
352 | } | |
ba44cb72 | 353 | EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts); |
b9a5f8ca JM |
354 | |
355 | int cfg80211_wext_giwrts(struct net_device *dev, | |
356 | struct iw_request_info *info, | |
357 | struct iw_param *rts, char *extra) | |
358 | { | |
359 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
360 | ||
361 | rts->value = wdev->wiphy->rts_threshold; | |
362 | rts->disabled = rts->value == (u32) -1; | |
363 | rts->fixed = 1; | |
364 | ||
365 | return 0; | |
366 | } | |
ba44cb72 | 367 | EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts); |
b9a5f8ca JM |
368 | |
369 | int cfg80211_wext_siwfrag(struct net_device *dev, | |
370 | struct iw_request_info *info, | |
371 | struct iw_param *frag, char *extra) | |
372 | { | |
373 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
374 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
375 | u32 ofrag = wdev->wiphy->frag_threshold; | |
376 | int err; | |
377 | ||
378 | if (frag->disabled || !frag->fixed) | |
379 | wdev->wiphy->frag_threshold = (u32) -1; | |
380 | else if (frag->value < 256) | |
381 | return -EINVAL; | |
382 | else { | |
383 | /* Fragment length must be even, so strip LSB. */ | |
384 | wdev->wiphy->frag_threshold = frag->value & ~0x1; | |
385 | } | |
386 | ||
387 | err = rdev->ops->set_wiphy_params(wdev->wiphy, | |
388 | WIPHY_PARAM_FRAG_THRESHOLD); | |
389 | if (err) | |
390 | wdev->wiphy->frag_threshold = ofrag; | |
391 | ||
392 | return err; | |
393 | } | |
ba44cb72 | 394 | EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag); |
b9a5f8ca JM |
395 | |
396 | int cfg80211_wext_giwfrag(struct net_device *dev, | |
397 | struct iw_request_info *info, | |
398 | struct iw_param *frag, char *extra) | |
399 | { | |
400 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
401 | ||
402 | frag->value = wdev->wiphy->frag_threshold; | |
403 | frag->disabled = frag->value == (u32) -1; | |
404 | frag->fixed = 1; | |
405 | ||
406 | return 0; | |
407 | } | |
ba44cb72 | 408 | EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag); |
b9a5f8ca JM |
409 | |
410 | int cfg80211_wext_siwretry(struct net_device *dev, | |
411 | struct iw_request_info *info, | |
412 | struct iw_param *retry, char *extra) | |
413 | { | |
414 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
415 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
416 | u32 changed = 0; | |
417 | u8 olong = wdev->wiphy->retry_long; | |
418 | u8 oshort = wdev->wiphy->retry_short; | |
419 | int err; | |
420 | ||
421 | if (retry->disabled || | |
422 | (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) | |
423 | return -EINVAL; | |
424 | ||
425 | if (retry->flags & IW_RETRY_LONG) { | |
426 | wdev->wiphy->retry_long = retry->value; | |
427 | changed |= WIPHY_PARAM_RETRY_LONG; | |
428 | } else if (retry->flags & IW_RETRY_SHORT) { | |
429 | wdev->wiphy->retry_short = retry->value; | |
430 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
431 | } else { | |
432 | wdev->wiphy->retry_short = retry->value; | |
433 | wdev->wiphy->retry_long = retry->value; | |
434 | changed |= WIPHY_PARAM_RETRY_LONG; | |
435 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
436 | } | |
437 | ||
438 | if (!changed) | |
439 | return 0; | |
440 | ||
441 | err = rdev->ops->set_wiphy_params(wdev->wiphy, changed); | |
442 | if (err) { | |
443 | wdev->wiphy->retry_short = oshort; | |
444 | wdev->wiphy->retry_long = olong; | |
445 | } | |
446 | ||
447 | return err; | |
448 | } | |
ba44cb72 | 449 | EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry); |
b9a5f8ca JM |
450 | |
451 | int cfg80211_wext_giwretry(struct net_device *dev, | |
452 | struct iw_request_info *info, | |
453 | struct iw_param *retry, char *extra) | |
454 | { | |
455 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
456 | ||
457 | retry->disabled = 0; | |
458 | ||
459 | if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) { | |
460 | /* | |
461 | * First return short value, iwconfig will ask long value | |
462 | * later if needed | |
463 | */ | |
464 | retry->flags |= IW_RETRY_LIMIT; | |
465 | retry->value = wdev->wiphy->retry_short; | |
466 | if (wdev->wiphy->retry_long != wdev->wiphy->retry_short) | |
467 | retry->flags |= IW_RETRY_LONG; | |
468 | ||
469 | return 0; | |
470 | } | |
471 | ||
472 | if (retry->flags & IW_RETRY_LONG) { | |
473 | retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; | |
474 | retry->value = wdev->wiphy->retry_long; | |
475 | } | |
476 | ||
477 | return 0; | |
478 | } | |
ba44cb72 | 479 | EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry); |