2 * cfg80211 wext compat for managed mode.
4 * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
8 #include <linux/etherdevice.h>
9 #include <linux/if_arp.h>
10 #include <net/cfg80211.h>
11 #include "wext-compat.h"
14 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
15 struct wireless_dev *wdev)
17 struct cfg80211_cached_keys *ck = NULL;
20 ASSERT_RDEV_LOCK(rdev);
21 ASSERT_WDEV_LOCK(wdev);
23 if (!netif_running(wdev->netdev))
26 wdev->wext.connect.ie = wdev->wext.ie;
27 wdev->wext.connect.ie_len = wdev->wext.ie_len;
28 wdev->wext.connect.privacy = wdev->wext.default_key != -1;
30 if (wdev->wext.keys) {
31 wdev->wext.keys->def = wdev->wext.default_key;
32 wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
35 if (!wdev->wext.connect.ssid_len)
38 if (wdev->wext.keys) {
39 ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
42 for (i = 0; i < 6; i++)
43 ck->params[i].key = ck->data[i];
45 err = __cfg80211_connect(rdev, wdev->netdev,
46 &wdev->wext.connect, ck);
53 int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
54 struct iw_request_info *info,
55 struct iw_freq *freq, char *extra)
57 struct wireless_dev *wdev = dev->ieee80211_ptr;
58 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
59 struct ieee80211_channel *chan;
62 /* call only for station! */
63 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
66 chan = cfg80211_wext_freq(wdev->wiphy, freq);
67 if (chan && IS_ERR(chan))
70 if (chan && (chan->flags & IEEE80211_CHAN_DISABLED))
73 cfg80211_lock_rdev(rdev);
76 if (wdev->sme_state != CFG80211_SME_IDLE) {
79 if (wdev->wext.connect.channel == chan) {
84 /* if SSID set, we'll try right again, avoid event */
85 if (wdev->wext.connect.ssid_len)
87 err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
88 dev, WLAN_REASON_DEAUTH_LEAVING,
95 wdev->wext.connect.channel = chan;
97 /* SSID is not set, we just want to switch channel */
98 if (wdev->wext.connect.ssid_len && chan) {
100 if (rdev->ops->set_channel)
101 err = rdev->ops->set_channel(wdev->wiphy, chan,
106 err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
109 cfg80211_unlock_rdev(rdev);
113 int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
114 struct iw_request_info *info,
115 struct iw_freq *freq, char *extra)
117 struct wireless_dev *wdev = dev->ieee80211_ptr;
118 struct ieee80211_channel *chan = NULL;
120 /* call only for station! */
121 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
125 if (wdev->current_bss)
126 chan = wdev->current_bss->pub.channel;
127 else if (wdev->wext.connect.channel)
128 chan = wdev->wext.connect.channel;
132 freq->m = chan->center_freq;
137 /* no channel if not joining */
141 int cfg80211_mgd_wext_siwessid(struct net_device *dev,
142 struct iw_request_info *info,
143 struct iw_point *data, char *ssid)
145 struct wireless_dev *wdev = dev->ieee80211_ptr;
146 size_t len = data->length;
149 /* call only for station! */
150 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
156 /* iwconfig uses nul termination in SSID.. */
157 if (len > 0 && ssid[len - 1] == '\0')
160 cfg80211_lock_rdev(wiphy_to_dev(wdev->wiphy));
165 if (wdev->sme_state != CFG80211_SME_IDLE) {
168 if (wdev->wext.connect.ssid && len &&
169 len == wdev->wext.connect.ssid_len &&
170 memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
173 /* if SSID set now, we'll try to connect, avoid event */
176 err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
177 dev, WLAN_REASON_DEAUTH_LEAVING,
183 wdev->wext.connect.ssid = wdev->wext.ssid;
184 memcpy(wdev->wext.ssid, ssid, len);
185 wdev->wext.connect.ssid_len = len;
187 wdev->wext.connect.crypto.control_port = false;
189 err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
192 cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy));
196 int cfg80211_mgd_wext_giwessid(struct net_device *dev,
197 struct iw_request_info *info,
198 struct iw_point *data, char *ssid)
200 struct wireless_dev *wdev = dev->ieee80211_ptr;
202 /* call only for station! */
203 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
209 if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
211 data->length = wdev->wext.connect.ssid_len;
212 memcpy(ssid, wdev->wext.connect.ssid, data->length);
220 int cfg80211_mgd_wext_siwap(struct net_device *dev,
221 struct iw_request_info *info,
222 struct sockaddr *ap_addr, char *extra)
224 struct wireless_dev *wdev = dev->ieee80211_ptr;
225 u8 *bssid = ap_addr->sa_data;
228 /* call only for station! */
229 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
232 if (ap_addr->sa_family != ARPHRD_ETHER)
236 if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
239 cfg80211_lock_rdev(wiphy_to_dev(wdev->wiphy));
242 if (wdev->sme_state != CFG80211_SME_IDLE) {
245 if (!bssid && !wdev->wext.connect.bssid)
248 /* fixed already - and no change */
249 if (wdev->wext.connect.bssid && bssid &&
250 compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
253 err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
254 dev, WLAN_REASON_DEAUTH_LEAVING,
261 memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
262 wdev->wext.connect.bssid = wdev->wext.bssid;
264 wdev->wext.connect.bssid = NULL;
266 err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
269 cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy));
273 int cfg80211_mgd_wext_giwap(struct net_device *dev,
274 struct iw_request_info *info,
275 struct sockaddr *ap_addr, char *extra)
277 struct wireless_dev *wdev = dev->ieee80211_ptr;
279 /* call only for station! */
280 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
283 ap_addr->sa_family = ARPHRD_ETHER;
286 if (wdev->current_bss)
287 memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
288 else if (wdev->wext.connect.bssid)
289 memcpy(ap_addr->sa_data, wdev->wext.connect.bssid, ETH_ALEN);
291 memset(ap_addr->sa_data, 0, ETH_ALEN);
297 int cfg80211_wext_siwgenie(struct net_device *dev,
298 struct iw_request_info *info,
299 struct iw_point *data, char *extra)
301 struct wireless_dev *wdev = dev->ieee80211_ptr;
302 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
304 int ie_len = data->length, err;
306 if (wdev->iftype != NL80211_IFTYPE_STATION)
316 if (wdev->wext.ie_len == ie_len &&
317 memcmp(wdev->wext.ie, ie, ie_len) == 0)
321 ie = kmemdup(extra, ie_len, GFP_KERNEL);
329 kfree(wdev->wext.ie);
331 wdev->wext.ie_len = ie_len;
333 if (wdev->sme_state != CFG80211_SME_IDLE) {
334 err = __cfg80211_disconnect(rdev, dev,
335 WLAN_REASON_DEAUTH_LEAVING, false);
340 /* userspace better not think we'll reconnect */
346 EXPORT_SYMBOL_GPL(cfg80211_wext_siwgenie);
348 int cfg80211_wext_siwmlme(struct net_device *dev,
349 struct iw_request_info *info,
350 struct iw_point *data, char *extra)
352 struct wireless_dev *wdev = dev->ieee80211_ptr;
353 struct iw_mlme *mlme = (struct iw_mlme *)extra;
354 struct cfg80211_registered_device *rdev;
360 rdev = wiphy_to_dev(wdev->wiphy);
362 if (wdev->iftype != NL80211_IFTYPE_STATION)
365 if (mlme->addr.sa_family != ARPHRD_ETHER)
371 case IW_MLME_DISASSOC:
372 err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,
383 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);