Commit | Line | Data |
---|---|---|
f2129354 JB |
1 | /* |
2 | * cfg80211 wext compat for managed mode. | |
3 | * | |
4 | * Copyright 2009 Johannes Berg <johannes@sipsolutions.net> | |
5 | * Copyright (C) 2009 Intel Corporation. All rights reserved. | |
6 | */ | |
7 | ||
8 | #include <linux/etherdevice.h> | |
9 | #include <linux/if_arp.h> | |
10 | #include <net/cfg80211.h> | |
11 | #include "nl80211.h" | |
12 | ||
fffd0934 JB |
13 | int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev, |
14 | struct wireless_dev *wdev) | |
f2129354 | 15 | { |
fffd0934 JB |
16 | struct cfg80211_cached_keys *ck = NULL; |
17 | int err, i; | |
f2129354 | 18 | |
667503dd JB |
19 | ASSERT_RDEV_LOCK(rdev); |
20 | ASSERT_WDEV_LOCK(wdev); | |
21 | ||
f2129354 JB |
22 | if (!netif_running(wdev->netdev)) |
23 | return 0; | |
24 | ||
25 | wdev->wext.connect.ie = wdev->wext.ie; | |
26 | wdev->wext.connect.ie_len = wdev->wext.ie_len; | |
27 | wdev->wext.connect.privacy = wdev->wext.default_key != -1; | |
28 | ||
fffd0934 JB |
29 | if (wdev->wext.keys) { |
30 | wdev->wext.keys->def = wdev->wext.default_key; | |
31 | wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key; | |
32 | } | |
33 | ||
34 | if (!wdev->wext.connect.ssid_len) | |
35 | return 0; | |
36 | ||
37 | if (wdev->wext.keys) { | |
38 | ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL); | |
39 | if (!ck) | |
40 | return -ENOMEM; | |
41 | for (i = 0; i < 6; i++) | |
42 | ck->params[i].key = ck->data[i]; | |
43 | } | |
44 | err = __cfg80211_connect(rdev, wdev->netdev, | |
45 | &wdev->wext.connect, ck); | |
46 | if (err) | |
47 | kfree(ck); | |
f2129354 JB |
48 | |
49 | return err; | |
50 | } | |
51 | ||
52 | int cfg80211_mgd_wext_siwfreq(struct net_device *dev, | |
53 | struct iw_request_info *info, | |
54 | struct iw_freq *freq, char *extra) | |
55 | { | |
56 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
57 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
58 | struct ieee80211_channel *chan; | |
59 | int err; | |
60 | ||
61 | /* call only for station! */ | |
62 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) | |
63 | return -EINVAL; | |
64 | ||
65 | chan = cfg80211_wext_freq(wdev->wiphy, freq); | |
66 | if (chan && IS_ERR(chan)) | |
67 | return PTR_ERR(chan); | |
68 | ||
69 | if (chan && (chan->flags & IEEE80211_CHAN_DISABLED)) | |
70 | return -EINVAL; | |
71 | ||
667503dd JB |
72 | cfg80211_lock_rdev(rdev); |
73 | wdev_lock(wdev); | |
74 | ||
f2129354 JB |
75 | if (wdev->sme_state != CFG80211_SME_IDLE) { |
76 | bool event = true; | |
25e83c49 JB |
77 | |
78 | if (wdev->wext.connect.channel == chan) { | |
79 | err = 0; | |
80 | goto out; | |
81 | } | |
82 | ||
f2129354 JB |
83 | /* if SSID set, we'll try right again, avoid event */ |
84 | if (wdev->wext.connect.ssid_len) | |
85 | event = false; | |
667503dd JB |
86 | err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy), |
87 | dev, WLAN_REASON_DEAUTH_LEAVING, | |
88 | event); | |
f2129354 | 89 | if (err) |
667503dd | 90 | goto out; |
f2129354 JB |
91 | } |
92 | ||
667503dd | 93 | |
f2129354 JB |
94 | wdev->wext.connect.channel = chan; |
95 | ||
96 | /* SSID is not set, we just want to switch channel */ | |
97 | if (wdev->wext.connect.ssid_len && chan) { | |
667503dd JB |
98 | err = -EOPNOTSUPP; |
99 | if (rdev->ops->set_channel) | |
100 | err = rdev->ops->set_channel(wdev->wiphy, chan, | |
101 | NL80211_CHAN_NO_HT); | |
102 | goto out; | |
f2129354 JB |
103 | } |
104 | ||
667503dd JB |
105 | err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev); |
106 | out: | |
107 | wdev_unlock(wdev); | |
108 | cfg80211_unlock_rdev(rdev); | |
109 | return err; | |
f2129354 JB |
110 | } |
111 | /* temporary symbol - mark GPL - in the future the handler won't be */ | |
112 | EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwfreq); | |
113 | ||
114 | int cfg80211_mgd_wext_giwfreq(struct net_device *dev, | |
115 | struct iw_request_info *info, | |
116 | struct iw_freq *freq, char *extra) | |
117 | { | |
118 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
119 | struct ieee80211_channel *chan = NULL; | |
120 | ||
121 | /* call only for station! */ | |
122 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) | |
123 | return -EINVAL; | |
124 | ||
667503dd | 125 | wdev_lock(wdev); |
f2129354 | 126 | if (wdev->current_bss) |
19957bb3 | 127 | chan = wdev->current_bss->pub.channel; |
f2129354 JB |
128 | else if (wdev->wext.connect.channel) |
129 | chan = wdev->wext.connect.channel; | |
667503dd | 130 | wdev_unlock(wdev); |
f2129354 JB |
131 | |
132 | if (chan) { | |
133 | freq->m = chan->center_freq; | |
134 | freq->e = 6; | |
135 | return 0; | |
136 | } | |
137 | ||
138 | /* no channel if not joining */ | |
139 | return -EINVAL; | |
140 | } | |
141 | /* temporary symbol - mark GPL - in the future the handler won't be */ | |
142 | EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_giwfreq); | |
143 | ||
144 | int cfg80211_mgd_wext_siwessid(struct net_device *dev, | |
145 | struct iw_request_info *info, | |
146 | struct iw_point *data, char *ssid) | |
147 | { | |
148 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
149 | size_t len = data->length; | |
150 | int err; | |
151 | ||
152 | /* call only for station! */ | |
153 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) | |
154 | return -EINVAL; | |
155 | ||
156 | if (!data->flags) | |
157 | len = 0; | |
158 | ||
159 | /* iwconfig uses nul termination in SSID.. */ | |
160 | if (len > 0 && ssid[len - 1] == '\0') | |
161 | len--; | |
162 | ||
667503dd JB |
163 | cfg80211_lock_rdev(wiphy_to_dev(wdev->wiphy)); |
164 | wdev_lock(wdev); | |
165 | ||
166 | err = 0; | |
167 | ||
f2129354 JB |
168 | if (wdev->sme_state != CFG80211_SME_IDLE) { |
169 | bool event = true; | |
25e83c49 JB |
170 | |
171 | if (wdev->wext.connect.ssid && len && | |
172 | len == wdev->wext.connect.ssid_len && | |
173 | memcmp(wdev->wext.connect.ssid, ssid, len) == 0) | |
174 | goto out; | |
175 | ||
f2129354 JB |
176 | /* if SSID set now, we'll try to connect, avoid event */ |
177 | if (len) | |
178 | event = false; | |
667503dd JB |
179 | err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy), |
180 | dev, WLAN_REASON_DEAUTH_LEAVING, | |
181 | event); | |
f2129354 | 182 | if (err) |
667503dd | 183 | goto out; |
f2129354 JB |
184 | } |
185 | ||
186 | wdev->wext.connect.ssid = wdev->wext.ssid; | |
187 | memcpy(wdev->wext.ssid, ssid, len); | |
188 | wdev->wext.connect.ssid_len = len; | |
189 | ||
190 | wdev->wext.connect.crypto.control_port = false; | |
191 | ||
667503dd JB |
192 | err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev); |
193 | out: | |
194 | wdev_unlock(wdev); | |
195 | cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy)); | |
196 | return err; | |
f2129354 JB |
197 | } |
198 | /* temporary symbol - mark GPL - in the future the handler won't be */ | |
199 | EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwessid); | |
200 | ||
201 | int cfg80211_mgd_wext_giwessid(struct net_device *dev, | |
202 | struct iw_request_info *info, | |
203 | struct iw_point *data, char *ssid) | |
204 | { | |
205 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
206 | ||
207 | /* call only for station! */ | |
208 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) | |
209 | return -EINVAL; | |
210 | ||
211 | data->flags = 0; | |
212 | ||
667503dd | 213 | wdev_lock(wdev); |
908d4369 | 214 | if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) { |
f2129354 JB |
215 | data->flags = 1; |
216 | data->length = wdev->wext.connect.ssid_len; | |
217 | memcpy(ssid, wdev->wext.connect.ssid, data->length); | |
218 | } else | |
219 | data->flags = 0; | |
667503dd | 220 | wdev_unlock(wdev); |
f2129354 JB |
221 | |
222 | return 0; | |
223 | } | |
224 | /* temporary symbol - mark GPL - in the future the handler won't be */ | |
225 | EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_giwessid); | |
226 | ||
227 | int cfg80211_mgd_wext_siwap(struct net_device *dev, | |
228 | struct iw_request_info *info, | |
229 | struct sockaddr *ap_addr, char *extra) | |
230 | { | |
231 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
232 | u8 *bssid = ap_addr->sa_data; | |
233 | int err; | |
234 | ||
235 | /* call only for station! */ | |
236 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) | |
237 | return -EINVAL; | |
238 | ||
239 | if (ap_addr->sa_family != ARPHRD_ETHER) | |
240 | return -EINVAL; | |
241 | ||
242 | /* automatic mode */ | |
243 | if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid)) | |
244 | bssid = NULL; | |
245 | ||
667503dd JB |
246 | cfg80211_lock_rdev(wiphy_to_dev(wdev->wiphy)); |
247 | wdev_lock(wdev); | |
248 | ||
25e83c49 JB |
249 | if (wdev->sme_state != CFG80211_SME_IDLE) { |
250 | err = 0; | |
251 | /* both automatic */ | |
252 | if (!bssid && !wdev->wext.connect.bssid) | |
253 | goto out; | |
f2129354 | 254 | |
25e83c49 JB |
255 | /* fixed already - and no change */ |
256 | if (wdev->wext.connect.bssid && bssid && | |
257 | compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0) | |
258 | goto out; | |
f2129354 | 259 | |
667503dd JB |
260 | err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy), |
261 | dev, WLAN_REASON_DEAUTH_LEAVING, | |
262 | false); | |
f2129354 | 263 | if (err) |
667503dd | 264 | goto out; |
f2129354 JB |
265 | } |
266 | ||
267 | if (bssid) { | |
268 | memcpy(wdev->wext.bssid, bssid, ETH_ALEN); | |
269 | wdev->wext.connect.bssid = wdev->wext.bssid; | |
270 | } else | |
271 | wdev->wext.connect.bssid = NULL; | |
272 | ||
667503dd JB |
273 | err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev); |
274 | out: | |
275 | wdev_unlock(wdev); | |
276 | cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy)); | |
277 | return err; | |
f2129354 JB |
278 | } |
279 | /* temporary symbol - mark GPL - in the future the handler won't be */ | |
280 | EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwap); | |
281 | ||
282 | int cfg80211_mgd_wext_giwap(struct net_device *dev, | |
283 | struct iw_request_info *info, | |
284 | struct sockaddr *ap_addr, char *extra) | |
285 | { | |
286 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
287 | ||
288 | /* call only for station! */ | |
289 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) | |
290 | return -EINVAL; | |
291 | ||
292 | ap_addr->sa_family = ARPHRD_ETHER; | |
293 | ||
667503dd | 294 | wdev_lock(wdev); |
f2129354 | 295 | if (wdev->current_bss) |
19957bb3 | 296 | memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN); |
f2129354 JB |
297 | else if (wdev->wext.connect.bssid) |
298 | memcpy(ap_addr->sa_data, wdev->wext.connect.bssid, ETH_ALEN); | |
299 | else | |
300 | memset(ap_addr->sa_data, 0, ETH_ALEN); | |
667503dd | 301 | wdev_unlock(wdev); |
f2129354 JB |
302 | |
303 | return 0; | |
304 | } | |
305 | /* temporary symbol - mark GPL - in the future the handler won't be */ | |
306 | EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_giwap); | |
307 | ||
308 | int cfg80211_wext_siwgenie(struct net_device *dev, | |
309 | struct iw_request_info *info, | |
310 | struct iw_point *data, char *extra) | |
311 | { | |
312 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
313 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
314 | u8 *ie = extra; | |
315 | int ie_len = data->length, err; | |
316 | ||
317 | if (wdev->iftype != NL80211_IFTYPE_STATION) | |
318 | return -EOPNOTSUPP; | |
319 | ||
320 | if (!ie_len) | |
321 | ie = NULL; | |
322 | ||
667503dd JB |
323 | wdev_lock(wdev); |
324 | ||
f2129354 | 325 | /* no change */ |
667503dd | 326 | err = 0; |
f2129354 JB |
327 | if (wdev->wext.ie_len == ie_len && |
328 | memcmp(wdev->wext.ie, ie, ie_len) == 0) | |
667503dd | 329 | goto out; |
f2129354 JB |
330 | |
331 | if (ie_len) { | |
332 | ie = kmemdup(extra, ie_len, GFP_KERNEL); | |
667503dd JB |
333 | if (!ie) { |
334 | err = -ENOMEM; | |
335 | goto out; | |
336 | } | |
f2129354 JB |
337 | } else |
338 | ie = NULL; | |
339 | ||
340 | kfree(wdev->wext.ie); | |
341 | wdev->wext.ie = ie; | |
342 | wdev->wext.ie_len = ie_len; | |
343 | ||
344 | if (wdev->sme_state != CFG80211_SME_IDLE) { | |
667503dd JB |
345 | err = __cfg80211_disconnect(rdev, dev, |
346 | WLAN_REASON_DEAUTH_LEAVING, false); | |
f2129354 | 347 | if (err) |
667503dd | 348 | goto out; |
f2129354 JB |
349 | } |
350 | ||
351 | /* userspace better not think we'll reconnect */ | |
667503dd JB |
352 | err = 0; |
353 | out: | |
354 | wdev_unlock(wdev); | |
355 | return err; | |
f2129354 JB |
356 | } |
357 | EXPORT_SYMBOL_GPL(cfg80211_wext_siwgenie); | |
358 | ||
359 | int cfg80211_wext_siwmlme(struct net_device *dev, | |
360 | struct iw_request_info *info, | |
361 | struct iw_point *data, char *extra) | |
362 | { | |
363 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
364 | struct iw_mlme *mlme = (struct iw_mlme *)extra; | |
365 | struct cfg80211_registered_device *rdev; | |
667503dd | 366 | int err; |
f2129354 JB |
367 | |
368 | if (!wdev) | |
369 | return -EOPNOTSUPP; | |
370 | ||
371 | rdev = wiphy_to_dev(wdev->wiphy); | |
372 | ||
373 | if (wdev->iftype != NL80211_IFTYPE_STATION) | |
374 | return -EINVAL; | |
375 | ||
376 | if (mlme->addr.sa_family != ARPHRD_ETHER) | |
377 | return -EINVAL; | |
378 | ||
667503dd | 379 | wdev_lock(wdev); |
f2129354 JB |
380 | switch (mlme->cmd) { |
381 | case IW_MLME_DEAUTH: | |
382 | case IW_MLME_DISASSOC: | |
667503dd JB |
383 | err = __cfg80211_disconnect(rdev, dev, mlme->reason_code, |
384 | true); | |
385 | break; | |
f2129354 | 386 | default: |
667503dd JB |
387 | err = -EOPNOTSUPP; |
388 | break; | |
f2129354 | 389 | } |
667503dd JB |
390 | wdev_unlock(wdev); |
391 | ||
392 | return err; | |
f2129354 JB |
393 | } |
394 | EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme); |