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