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/export.h>
9 #include <linux/etherdevice.h>
10 #include <linux/if_arp.h>
11 #include <linux/slab.h>
12 #include <net/cfg80211.h>
13 #include <net/cfg80211-wext.h>
14 #include "wext-compat.h"
17 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
18 struct wireless_dev *wdev)
20 struct cfg80211_cached_keys *ck = NULL;
21 const u8 *prev_bssid = NULL;
24 ASSERT_RDEV_LOCK(rdev);
25 ASSERT_WDEV_LOCK(wdev);
27 if (!netif_running(wdev->netdev))
30 wdev->wext.connect.ie = wdev->wext.ie;
31 wdev->wext.connect.ie_len = wdev->wext.ie_len;
33 /* Use default background scan period */
34 wdev->wext.connect.bg_scan_period = -1;
36 if (wdev->wext.keys) {
37 wdev->wext.keys->def = wdev->wext.default_key;
38 wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
39 if (wdev->wext.default_key != -1)
40 wdev->wext.connect.privacy = true;
43 if (!wdev->wext.connect.ssid_len)
46 if (wdev->wext.keys) {
47 ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
50 for (i = 0; i < 6; i++)
51 ck->params[i].key = ck->data[i];
54 if (wdev->wext.prev_bssid_valid)
55 prev_bssid = wdev->wext.prev_bssid;
57 err = __cfg80211_connect(rdev, wdev->netdev,
58 &wdev->wext.connect, ck, prev_bssid);
65 int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
66 struct iw_request_info *info,
67 struct iw_freq *wextfreq, char *extra)
69 struct wireless_dev *wdev = dev->ieee80211_ptr;
70 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
71 struct ieee80211_channel *chan = NULL;
74 /* call only for station! */
75 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
78 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
83 chan = ieee80211_get_channel(wdev->wiphy, freq);
86 if (chan->flags & IEEE80211_CHAN_DISABLED)
90 cfg80211_lock_rdev(rdev);
91 mutex_lock(&rdev->devlist_mtx);
94 if (wdev->sme_state != CFG80211_SME_IDLE) {
97 if (wdev->wext.connect.channel == chan) {
102 /* if SSID set, we'll try right again, avoid event */
103 if (wdev->wext.connect.ssid_len)
105 err = __cfg80211_disconnect(rdev, dev,
106 WLAN_REASON_DEAUTH_LEAVING, event);
112 wdev->wext.connect.channel = chan;
114 /* SSID is not set, we just want to switch channel */
115 if (chan && !wdev->wext.connect.ssid_len) {
116 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
120 err = cfg80211_mgd_wext_connect(rdev, wdev);
123 mutex_unlock(&rdev->devlist_mtx);
124 cfg80211_unlock_rdev(rdev);
128 int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
129 struct iw_request_info *info,
130 struct iw_freq *freq, char *extra)
132 struct wireless_dev *wdev = dev->ieee80211_ptr;
133 struct ieee80211_channel *chan = NULL;
135 /* call only for station! */
136 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
140 if (wdev->current_bss)
141 chan = wdev->current_bss->pub.channel;
142 else if (wdev->wext.connect.channel)
143 chan = wdev->wext.connect.channel;
147 freq->m = chan->center_freq;
152 /* no channel if not joining */
156 int cfg80211_mgd_wext_siwessid(struct net_device *dev,
157 struct iw_request_info *info,
158 struct iw_point *data, char *ssid)
160 struct wireless_dev *wdev = dev->ieee80211_ptr;
161 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
162 size_t len = data->length;
165 /* call only for station! */
166 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
172 /* iwconfig uses nul termination in SSID.. */
173 if (len > 0 && ssid[len - 1] == '\0')
176 cfg80211_lock_rdev(rdev);
177 mutex_lock(&rdev->devlist_mtx);
182 if (wdev->sme_state != CFG80211_SME_IDLE) {
185 if (wdev->wext.connect.ssid && len &&
186 len == wdev->wext.connect.ssid_len &&
187 memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
190 /* if SSID set now, we'll try to connect, avoid event */
193 err = __cfg80211_disconnect(rdev, dev,
194 WLAN_REASON_DEAUTH_LEAVING, event);
199 wdev->wext.prev_bssid_valid = false;
200 wdev->wext.connect.ssid = wdev->wext.ssid;
201 memcpy(wdev->wext.ssid, ssid, len);
202 wdev->wext.connect.ssid_len = len;
204 wdev->wext.connect.crypto.control_port = false;
205 wdev->wext.connect.crypto.control_port_ethertype =
206 cpu_to_be16(ETH_P_PAE);
208 err = cfg80211_mgd_wext_connect(rdev, wdev);
211 mutex_unlock(&rdev->devlist_mtx);
212 cfg80211_unlock_rdev(rdev);
216 int cfg80211_mgd_wext_giwessid(struct net_device *dev,
217 struct iw_request_info *info,
218 struct iw_point *data, char *ssid)
220 struct wireless_dev *wdev = dev->ieee80211_ptr;
222 /* call only for station! */
223 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
229 if (wdev->current_bss) {
230 const u8 *ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
234 data->length = ie[1];
235 memcpy(ssid, ie + 2, data->length);
237 } else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
239 data->length = wdev->wext.connect.ssid_len;
240 memcpy(ssid, wdev->wext.connect.ssid, data->length);
247 int cfg80211_mgd_wext_siwap(struct net_device *dev,
248 struct iw_request_info *info,
249 struct sockaddr *ap_addr, char *extra)
251 struct wireless_dev *wdev = dev->ieee80211_ptr;
252 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
253 u8 *bssid = ap_addr->sa_data;
256 /* call only for station! */
257 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
260 if (ap_addr->sa_family != ARPHRD_ETHER)
264 if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
267 cfg80211_lock_rdev(rdev);
268 mutex_lock(&rdev->devlist_mtx);
271 if (wdev->sme_state != CFG80211_SME_IDLE) {
274 if (!bssid && !wdev->wext.connect.bssid)
277 /* fixed already - and no change */
278 if (wdev->wext.connect.bssid && bssid &&
279 ether_addr_equal(bssid, wdev->wext.connect.bssid))
282 err = __cfg80211_disconnect(rdev, dev,
283 WLAN_REASON_DEAUTH_LEAVING, false);
289 memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
290 wdev->wext.connect.bssid = wdev->wext.bssid;
292 wdev->wext.connect.bssid = NULL;
294 err = cfg80211_mgd_wext_connect(rdev, wdev);
297 mutex_unlock(&rdev->devlist_mtx);
298 cfg80211_unlock_rdev(rdev);
302 int cfg80211_mgd_wext_giwap(struct net_device *dev,
303 struct iw_request_info *info,
304 struct sockaddr *ap_addr, char *extra)
306 struct wireless_dev *wdev = dev->ieee80211_ptr;
308 /* call only for station! */
309 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
312 ap_addr->sa_family = ARPHRD_ETHER;
315 if (wdev->current_bss)
316 memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
318 memset(ap_addr->sa_data, 0, ETH_ALEN);
324 int cfg80211_wext_siwgenie(struct net_device *dev,
325 struct iw_request_info *info,
326 struct iw_point *data, char *extra)
328 struct wireless_dev *wdev = dev->ieee80211_ptr;
329 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
331 int ie_len = data->length, err;
333 if (wdev->iftype != NL80211_IFTYPE_STATION)
343 if (wdev->wext.ie_len == ie_len &&
344 memcmp(wdev->wext.ie, ie, ie_len) == 0)
348 ie = kmemdup(extra, ie_len, GFP_KERNEL);
356 kfree(wdev->wext.ie);
358 wdev->wext.ie_len = ie_len;
360 if (wdev->sme_state != CFG80211_SME_IDLE) {
361 err = __cfg80211_disconnect(rdev, dev,
362 WLAN_REASON_DEAUTH_LEAVING, false);
367 /* userspace better not think we'll reconnect */
374 int cfg80211_wext_siwmlme(struct net_device *dev,
375 struct iw_request_info *info,
376 struct iw_point *data, char *extra)
378 struct wireless_dev *wdev = dev->ieee80211_ptr;
379 struct iw_mlme *mlme = (struct iw_mlme *)extra;
380 struct cfg80211_registered_device *rdev;
386 rdev = wiphy_to_dev(wdev->wiphy);
388 if (wdev->iftype != NL80211_IFTYPE_STATION)
391 if (mlme->addr.sa_family != ARPHRD_ETHER)
397 case IW_MLME_DISASSOC:
398 err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,