[deliverable/linux.git] / net / wireless / wext-sme.c

/*
 * cfg80211 wext compat for managed mode.
 *
 * Copyright 2009	Johannes Berg <johannes@sipsolutions.net>
 * Copyright (C) 2009   Intel Corporation. All rights reserved.
 */

#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <net/cfg80211.h>
#include "wext-compat.h"
#include "nl80211.h"

int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
			      struct wireless_dev *wdev)
{
	struct cfg80211_cached_keys *ck = NULL;
	int err, i;

	ASSERT_RDEV_LOCK(rdev);
	ASSERT_WDEV_LOCK(wdev);

	if (!netif_running(wdev->netdev))
		return 0;

	wdev->wext.connect.ie = wdev->wext.ie;
	wdev->wext.connect.ie_len = wdev->wext.ie_len;
	wdev->wext.connect.privacy = wdev->wext.default_key != -1;

	if (wdev->wext.keys) {
		wdev->wext.keys->def = wdev->wext.default_key;
		wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
	}

	if (!wdev->wext.connect.ssid_len)
		return 0;

	if (wdev->wext.keys) {
		ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
		if (!ck)
			return -ENOMEM;
		for (i = 0; i < 6; i++)
			ck->params[i].key = ck->data[i];
	}
	err = __cfg80211_connect(rdev, wdev->netdev,
				 &wdev->wext.connect, ck);
	if (err)
		kfree(ck);

	return err;
}

int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
			      struct iw_request_info *info,
			      struct iw_freq *wextfreq, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	struct ieee80211_channel *chan = NULL;
	int err, freq;

	/* call only for station! */
	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
		return -EINVAL;

	freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
	if (freq < 0)
		return freq;

	if (freq) {
		chan = ieee80211_get_channel(wdev->wiphy, freq);
		if (!chan)
			return -EINVAL;
		if (chan->flags & IEEE80211_CHAN_DISABLED)
			return -EINVAL;
	}

	cfg80211_lock_rdev(rdev);
	mutex_lock(&rdev->devlist_mtx);
	wdev_lock(wdev);

	if (wdev->sme_state != CFG80211_SME_IDLE) {
		bool event = true;

		if (wdev->wext.connect.channel == chan) {
			err = 0;
			goto out;
		}

		/* if SSID set, we'll try right again, avoid event */
		if (wdev->wext.connect.ssid_len)
			event = false;
		err = __cfg80211_disconnect(rdev, dev,
					    WLAN_REASON_DEAUTH_LEAVING, event);
		if (err)
			goto out;
	}


	wdev->wext.connect.channel = chan;

	/* SSID is not set, we just want to switch channel */
	if (chan && !wdev->wext.connect.ssid_len) {
		err = rdev_set_freq(rdev, freq, NL80211_CHAN_NO_HT);
		goto out;
	}

	err = cfg80211_mgd_wext_connect(rdev, wdev);
 out:
	wdev_unlock(wdev);
	mutex_unlock(&rdev->devlist_mtx);
	cfg80211_unlock_rdev(rdev);
	return err;
}

int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
			      struct iw_request_info *info,
			      struct iw_freq *freq, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct ieee80211_channel *chan = NULL;

	/* call only for station! */
	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
		return -EINVAL;

	wdev_lock(wdev);
	if (wdev->current_bss)
		chan = wdev->current_bss->pub.channel;
	else if (wdev->wext.connect.channel)
		chan = wdev->wext.connect.channel;
	wdev_unlock(wdev);

	if (chan) {
		freq->m = chan->center_freq;
		freq->e = 6;
		return 0;
	}

	/* no channel if not joining */
	return -EINVAL;
}

int cfg80211_mgd_wext_siwessid(struct net_device *dev,
			       struct iw_request_info *info,
			       struct iw_point *data, char *ssid)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	size_t len = data->length;
	int err;

	/* call only for station! */
	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
		return -EINVAL;

	if (!data->flags)
		len = 0;

	/* iwconfig uses nul termination in SSID.. */
	if (len > 0 && ssid[len - 1] == '\0')
		len--;

	cfg80211_lock_rdev(rdev);
	mutex_lock(&rdev->devlist_mtx);
	wdev_lock(wdev);

	err = 0;

	if (wdev->sme_state != CFG80211_SME_IDLE) {
		bool event = true;

		if (wdev->wext.connect.ssid && len &&
		    len == wdev->wext.connect.ssid_len &&
		    memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
			goto out;

		/* if SSID set now, we'll try to connect, avoid event */
		if (len)
			event = false;
		err = __cfg80211_disconnect(rdev, dev,
					    WLAN_REASON_DEAUTH_LEAVING, event);
		if (err)
			goto out;
	}

	wdev->wext.connect.ssid = wdev->wext.ssid;
	memcpy(wdev->wext.ssid, ssid, len);
	wdev->wext.connect.ssid_len = len;

	wdev->wext.connect.crypto.control_port = false;

	err = cfg80211_mgd_wext_connect(rdev, wdev);
 out:
	wdev_unlock(wdev);
	mutex_unlock(&rdev->devlist_mtx);
	cfg80211_unlock_rdev(rdev);
	return err;
}

int cfg80211_mgd_wext_giwessid(struct net_device *dev,
			       struct iw_request_info *info,
			       struct iw_point *data, char *ssid)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;

	/* call only for station! */
	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
		return -EINVAL;

	data->flags = 0;

	wdev_lock(wdev);
	if (wdev->current_bss) {
		const u8 *ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
						    WLAN_EID_SSID);
		if (ie) {
			data->flags = 1;
			data->length = ie[1];
			memcpy(ssid, ie + 2, data->length);
		}
	} else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
		data->flags = 1;
		data->length = wdev->wext.connect.ssid_len;
		memcpy(ssid, wdev->wext.connect.ssid, data->length);
	} else
		data->flags = 0;
	wdev_unlock(wdev);

	return 0;
}

int cfg80211_mgd_wext_siwap(struct net_device *dev,
			    struct iw_request_info *info,
			    struct sockaddr *ap_addr, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	u8 *bssid = ap_addr->sa_data;
	int err;

	/* call only for station! */
	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
		return -EINVAL;

	if (ap_addr->sa_family != ARPHRD_ETHER)
		return -EINVAL;

	/* automatic mode */
	if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
		bssid = NULL;

	cfg80211_lock_rdev(rdev);
	mutex_lock(&rdev->devlist_mtx);
	wdev_lock(wdev);

	if (wdev->sme_state != CFG80211_SME_IDLE) {
		err = 0;
		/* both automatic */
		if (!bssid && !wdev->wext.connect.bssid)
			goto out;

		/* fixed already - and no change */
		if (wdev->wext.connect.bssid && bssid &&
		    compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
			goto out;

		err = __cfg80211_disconnect(rdev, dev,
					    WLAN_REASON_DEAUTH_LEAVING, false);
		if (err)
			goto out;
	}

	if (bssid) {
		memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
		wdev->wext.connect.bssid = wdev->wext.bssid;
	} else
		wdev->wext.connect.bssid = NULL;

	err = cfg80211_mgd_wext_connect(rdev, wdev);
 out:
	wdev_unlock(wdev);
	mutex_unlock(&rdev->devlist_mtx);
	cfg80211_unlock_rdev(rdev);
	return err;
}

int cfg80211_mgd_wext_giwap(struct net_device *dev,
			    struct iw_request_info *info,
			    struct sockaddr *ap_addr, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;

	/* call only for station! */
	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
		return -EINVAL;

	ap_addr->sa_family = ARPHRD_ETHER;

	wdev_lock(wdev);
	if (wdev->current_bss)
		memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
	else if (wdev->wext.connect.bssid)
		memcpy(ap_addr->sa_data, wdev->wext.connect.bssid, ETH_ALEN);
	else
		memset(ap_addr->sa_data, 0, ETH_ALEN);
	wdev_unlock(wdev);

	return 0;
}

int cfg80211_wext_siwgenie(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_point *data, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	u8 *ie = extra;
	int ie_len = data->length, err;

	if (wdev->iftype != NL80211_IFTYPE_STATION)
		return -EOPNOTSUPP;

	if (!ie_len)
		ie = NULL;

	wdev_lock(wdev);

	/* no change */
	err = 0;
	if (wdev->wext.ie_len == ie_len &&
	    memcmp(wdev->wext.ie, ie, ie_len) == 0)
		goto out;

	if (ie_len) {
		ie = kmemdup(extra, ie_len, GFP_KERNEL);
		if (!ie) {
			err = -ENOMEM;
			goto out;
		}
	} else
		ie = NULL;

	kfree(wdev->wext.ie);
	wdev->wext.ie = ie;
	wdev->wext.ie_len = ie_len;

	if (wdev->sme_state != CFG80211_SME_IDLE) {
		err = __cfg80211_disconnect(rdev, dev,
					    WLAN_REASON_DEAUTH_LEAVING, false);
		if (err)
			goto out;
	}

	/* userspace better not think we'll reconnect */
	err = 0;
 out:
	wdev_unlock(wdev);
	return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwgenie);

int cfg80211_wext_siwmlme(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_point *data, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct iw_mlme *mlme = (struct iw_mlme *)extra;
	struct cfg80211_registered_device *rdev;
	int err;

	if (!wdev)
		return -EOPNOTSUPP;

	rdev = wiphy_to_dev(wdev->wiphy);

	if (wdev->iftype != NL80211_IFTYPE_STATION)
		return -EINVAL;

	if (mlme->addr.sa_family != ARPHRD_ETHER)
		return -EINVAL;

	wdev_lock(wdev);
	switch (mlme->cmd) {
	case IW_MLME_DEAUTH:
	case IW_MLME_DISASSOC:
		err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,
					    true);
		break;
	default:
		err = -EOPNOTSUPP;
		break;
	}
	wdev_unlock(wdev);

	return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);
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>
0e82ffe3	11	#include "wext-compat.h"
f2129354 JB	12	#include "nl80211.h"
f2129354 JB	13
fffd0934 JB	14	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	15	struct wireless_dev *wdev)
f2129354	16	{
fffd0934 JB	17	struct cfg80211_cached_keys *ck = NULL;
fffd0934 JB	18	int err, i;
f2129354	19
667503dd JB	20	ASSERT_RDEV_LOCK(rdev);
	21	ASSERT_WDEV_LOCK(wdev);
	22
f2129354 JB	23	if (!netif_running(wdev->netdev))
	24	return 0;
	25
	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;
	29
fffd0934 JB	30	if (wdev->wext.keys) {
	31	wdev->wext.keys->def = wdev->wext.default_key;
	32	wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
	33	}
	34
	35	if (!wdev->wext.connect.ssid_len)
	36	return 0;
	37
	38	if (wdev->wext.keys) {
	39	ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
	40	if (!ck)
	41	return -ENOMEM;
	42	for (i = 0; i < 6; i++)
	43	ck->params[i].key = ck->data[i];
	44	}
	45	err = __cfg80211_connect(rdev, wdev->netdev,
	46	&wdev->wext.connect, ck);
	47	if (err)
	48	kfree(ck);
f2129354 JB	49
	50	return err;
	51	}
	52
	53	int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
	54	struct iw_request_info *info,
59bbb6f7	55	struct iw_freq wextfreq, char extra)
f2129354 JB	56	{
	57	struct wireless_dev *wdev = dev->ieee80211_ptr;
	58	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
59bbb6f7 JB	59	struct ieee80211_channel *chan = NULL;
59bbb6f7 JB	60	int err, freq;
f2129354 JB	61
	62	/* call only for station! */
	63	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	64	return -EINVAL;
	65
59bbb6f7 JB	66	freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
	67	if (freq < 0)
	68	return freq;
f2129354	69
59bbb6f7 JB	70	if (freq) {
	71	chan = ieee80211_get_channel(wdev->wiphy, freq);
	72	if (!chan)
	73	return -EINVAL;
	74	if (chan->flags & IEEE80211_CHAN_DISABLED)
	75	return -EINVAL;
	76	}
f2129354	77
667503dd	78	cfg80211_lock_rdev(rdev);
59bbb6f7	79	mutex_lock(&rdev->devlist_mtx);
667503dd JB	80	wdev_lock(wdev);
667503dd JB	81
f2129354 JB	82	if (wdev->sme_state != CFG80211_SME_IDLE) {
f2129354 JB	83	bool event = true;
25e83c49 JB	84
	85	if (wdev->wext.connect.channel == chan) {
	86	err = 0;
	87	goto out;
	88	}
	89
f2129354 JB	90	/* if SSID set, we'll try right again, avoid event */
	91	if (wdev->wext.connect.ssid_len)
	92	event = false;
59bbb6f7 JB	93	err = __cfg80211_disconnect(rdev, dev,
59bbb6f7 JB	94	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	95	if (err)
667503dd	96	goto out;
f2129354 JB	97	}
f2129354 JB	98
667503dd	99
f2129354 JB	100	wdev->wext.connect.channel = chan;
	101
	102	/* SSID is not set, we just want to switch channel */
59bbb6f7 JB	103	if (chan && !wdev->wext.connect.ssid_len) {
59bbb6f7 JB	104	err = rdev_set_freq(rdev, freq, NL80211_CHAN_NO_HT);
667503dd	105	goto out;
f2129354 JB	106	}
f2129354 JB	107
59bbb6f7	108	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	109	out:
667503dd JB	110	wdev_unlock(wdev);
59bbb6f7	111	mutex_unlock(&rdev->devlist_mtx);
667503dd JB	112	cfg80211_unlock_rdev(rdev);
667503dd JB	113	return err;
f2129354	114	}
f2129354 JB	115
	116	int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
	117	struct iw_request_info *info,
	118	struct iw_freq freq, char extra)
	119	{
	120	struct wireless_dev *wdev = dev->ieee80211_ptr;
	121	struct ieee80211_channel *chan = NULL;
	122
	123	/* call only for station! */
	124	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	125	return -EINVAL;
	126
667503dd	127	wdev_lock(wdev);
f2129354	128	if (wdev->current_bss)
19957bb3	129	chan = wdev->current_bss->pub.channel;
f2129354 JB	130	else if (wdev->wext.connect.channel)
f2129354 JB	131	chan = wdev->wext.connect.channel;
667503dd	132	wdev_unlock(wdev);
f2129354 JB	133
	134	if (chan) {
	135	freq->m = chan->center_freq;
	136	freq->e = 6;
	137	return 0;
	138	}
	139
	140	/* no channel if not joining */
	141	return -EINVAL;
	142	}
f2129354 JB	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;
59bbb6f7	149	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
f2129354 JB	150	size_t len = data->length;
	151	int err;
	152
	153	/* call only for station! */
	154	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	155	return -EINVAL;
	156
	157	if (!data->flags)
	158	len = 0;
	159
	160	/* iwconfig uses nul termination in SSID.. */
	161	if (len > 0 && ssid[len - 1] == '\0')
	162	len--;
	163
59bbb6f7 JB	164	cfg80211_lock_rdev(rdev);
59bbb6f7 JB	165	mutex_lock(&rdev->devlist_mtx);
667503dd JB	166	wdev_lock(wdev);
	167
	168	err = 0;
	169
f2129354 JB	170	if (wdev->sme_state != CFG80211_SME_IDLE) {
f2129354 JB	171	bool event = true;
25e83c49 JB	172
	173	if (wdev->wext.connect.ssid && len &&
	174	len == wdev->wext.connect.ssid_len &&
	175	memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
	176	goto out;
	177
f2129354 JB	178	/* if SSID set now, we'll try to connect, avoid event */
	179	if (len)
	180	event = false;
59bbb6f7 JB	181	err = __cfg80211_disconnect(rdev, dev,
59bbb6f7 JB	182	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	183	if (err)
667503dd	184	goto out;
f2129354 JB	185	}
	186
	187	wdev->wext.connect.ssid = wdev->wext.ssid;
	188	memcpy(wdev->wext.ssid, ssid, len);
	189	wdev->wext.connect.ssid_len = len;
	190
	191	wdev->wext.connect.crypto.control_port = false;
	192
59bbb6f7	193	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	194	out:
667503dd JB	195	wdev_unlock(wdev);
59bbb6f7 JB	196	mutex_unlock(&rdev->devlist_mtx);
59bbb6f7 JB	197	cfg80211_unlock_rdev(rdev);
667503dd	198	return err;
f2129354	199	}
f2129354 JB	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);
a42dd7ef ZY	214	if (wdev->current_bss) {
	215	const u8 *ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
	216	WLAN_EID_SSID);
	217	if (ie) {
	218	data->flags = 1;
	219	data->length = ie[1];
	220	memcpy(ssid, ie + 2, data->length);
	221	}
	222	} else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
f2129354 JB	223	data->flags = 1;
	224	data->length = wdev->wext.connect.ssid_len;
	225	memcpy(ssid, wdev->wext.connect.ssid, data->length);
	226	} else
	227	data->flags = 0;
667503dd	228	wdev_unlock(wdev);
f2129354 JB	229
	230	return 0;
	231	}
f2129354 JB	232
	233	int cfg80211_mgd_wext_siwap(struct net_device *dev,
	234	struct iw_request_info *info,
	235	struct sockaddr ap_addr, char extra)
	236	{
	237	struct wireless_dev *wdev = dev->ieee80211_ptr;
59bbb6f7	238	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
f2129354 JB	239	u8 *bssid = ap_addr->sa_data;
	240	int err;
	241
	242	/* call only for station! */
	243	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	244	return -EINVAL;
	245
	246	if (ap_addr->sa_family != ARPHRD_ETHER)
	247	return -EINVAL;
	248
	249	/* automatic mode */
	250	if (is_zero_ether_addr(bssid) \|\| is_broadcast_ether_addr(bssid))
	251	bssid = NULL;
	252
59bbb6f7 JB	253	cfg80211_lock_rdev(rdev);
59bbb6f7 JB	254	mutex_lock(&rdev->devlist_mtx);
667503dd JB	255	wdev_lock(wdev);
667503dd JB	256
25e83c49 JB	257	if (wdev->sme_state != CFG80211_SME_IDLE) {
	258	err = 0;
	259	/* both automatic */
	260	if (!bssid && !wdev->wext.connect.bssid)
	261	goto out;
f2129354	262
25e83c49 JB	263	/* fixed already - and no change */
	264	if (wdev->wext.connect.bssid && bssid &&
	265	compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
	266	goto out;
f2129354	267
59bbb6f7 JB	268	err = __cfg80211_disconnect(rdev, dev,
59bbb6f7 JB	269	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	270	if (err)
667503dd	271	goto out;
f2129354 JB	272	}
	273
	274	if (bssid) {
	275	memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
	276	wdev->wext.connect.bssid = wdev->wext.bssid;
	277	} else
	278	wdev->wext.connect.bssid = NULL;
	279
59bbb6f7	280	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	281	out:
667503dd JB	282	wdev_unlock(wdev);
59bbb6f7 JB	283	mutex_unlock(&rdev->devlist_mtx);
59bbb6f7 JB	284	cfg80211_unlock_rdev(rdev);
667503dd	285	return err;
f2129354	286	}
f2129354 JB	287
	288	int cfg80211_mgd_wext_giwap(struct net_device *dev,
	289	struct iw_request_info *info,
	290	struct sockaddr ap_addr, char extra)
	291	{
	292	struct wireless_dev *wdev = dev->ieee80211_ptr;
	293
	294	/* call only for station! */
	295	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	296	return -EINVAL;
	297
	298	ap_addr->sa_family = ARPHRD_ETHER;
	299
667503dd	300	wdev_lock(wdev);
f2129354	301	if (wdev->current_bss)
19957bb3	302	memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
f2129354 JB	303	else if (wdev->wext.connect.bssid)
	304	memcpy(ap_addr->sa_data, wdev->wext.connect.bssid, ETH_ALEN);
	305	else
	306	memset(ap_addr->sa_data, 0, ETH_ALEN);
667503dd	307	wdev_unlock(wdev);
f2129354 JB	308
	309	return 0;
	310	}
f2129354 JB	311
	312	int cfg80211_wext_siwgenie(struct net_device *dev,
	313	struct iw_request_info *info,
	314	struct iw_point data, char extra)
	315	{
	316	struct wireless_dev *wdev = dev->ieee80211_ptr;
	317	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	318	u8 *ie = extra;
	319	int ie_len = data->length, err;
	320
	321	if (wdev->iftype != NL80211_IFTYPE_STATION)
	322	return -EOPNOTSUPP;
	323
	324	if (!ie_len)
	325	ie = NULL;
	326
667503dd JB	327	wdev_lock(wdev);
667503dd JB	328
f2129354	329	/* no change */
667503dd	330	err = 0;
f2129354 JB	331	if (wdev->wext.ie_len == ie_len &&
f2129354 JB	332	memcmp(wdev->wext.ie, ie, ie_len) == 0)
667503dd	333	goto out;
f2129354 JB	334
	335	if (ie_len) {
	336	ie = kmemdup(extra, ie_len, GFP_KERNEL);
667503dd JB	337	if (!ie) {
	338	err = -ENOMEM;
	339	goto out;
	340	}
f2129354 JB	341	} else
	342	ie = NULL;
	343
	344	kfree(wdev->wext.ie);
	345	wdev->wext.ie = ie;
	346	wdev->wext.ie_len = ie_len;
	347
	348	if (wdev->sme_state != CFG80211_SME_IDLE) {
667503dd JB	349	err = __cfg80211_disconnect(rdev, dev,
667503dd JB	350	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	351	if (err)
667503dd	352	goto out;
f2129354 JB	353	}
	354
	355	/* userspace better not think we'll reconnect */
667503dd JB	356	err = 0;
	357	out:
	358	wdev_unlock(wdev);
	359	return err;
f2129354 JB	360	}
	361	EXPORT_SYMBOL_GPL(cfg80211_wext_siwgenie);
	362
	363	int cfg80211_wext_siwmlme(struct net_device *dev,
	364	struct iw_request_info *info,
	365	struct iw_point data, char extra)
	366	{
	367	struct wireless_dev *wdev = dev->ieee80211_ptr;
	368	struct iw_mlme mlme = (struct iw_mlme )extra;
	369	struct cfg80211_registered_device *rdev;
667503dd	370	int err;
f2129354 JB	371
	372	if (!wdev)
	373	return -EOPNOTSUPP;
	374
	375	rdev = wiphy_to_dev(wdev->wiphy);
	376
	377	if (wdev->iftype != NL80211_IFTYPE_STATION)
	378	return -EINVAL;
	379
	380	if (mlme->addr.sa_family != ARPHRD_ETHER)
	381	return -EINVAL;
	382
667503dd	383	wdev_lock(wdev);
f2129354 JB	384	switch (mlme->cmd) {
	385	case IW_MLME_DEAUTH:
	386	case IW_MLME_DISASSOC:
667503dd JB	387	err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,
	388	true);
	389	break;
f2129354	390	default:
667503dd JB	391	err = -EOPNOTSUPP;
667503dd JB	392	break;
f2129354	393	}
667503dd JB	394	wdev_unlock(wdev);
	395
	396	return err;
f2129354 JB	397	}
f2129354 JB	398	EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);