[mirror_ubuntu-artful-kernel.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 "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 *freq, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	struct ieee80211_channel *chan;
	int err;

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

	chan = cfg80211_wext_freq(wdev->wiphy, freq);
	if (chan && IS_ERR(chan))
		return PTR_ERR(chan);

	if (chan && (chan->flags & IEEE80211_CHAN_DISABLED))
		return -EINVAL;

	cfg80211_lock_rdev(rdev);
	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(wiphy_to_dev(wdev->wiphy),
					    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 (wdev->wext.connect.ssid_len && chan) {
		err = -EOPNOTSUPP;
		if (rdev->ops->set_channel)
			err = rdev->ops->set_channel(wdev->wiphy, chan,
						     NL80211_CHAN_NO_HT);
		goto out;
	}

	err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
 out:
	wdev_unlock(wdev);
	cfg80211_unlock_rdev(rdev);
	return err;
}
/* temporary symbol - mark GPL - in the future the handler won't be */
EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwfreq);

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;
}
/* temporary symbol - mark GPL - in the future the handler won't be */
EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_giwfreq);

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;
	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(wiphy_to_dev(wdev->wiphy));
	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(wiphy_to_dev(wdev->wiphy),
					    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(wiphy_to_dev(wdev->wiphy), wdev);
 out:
	wdev_unlock(wdev);
	cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy));
	return err;
}
/* temporary symbol - mark GPL - in the future the handler won't be */
EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwessid);

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->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;
}
/* temporary symbol - mark GPL - in the future the handler won't be */
EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_giwessid);

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;
	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(wiphy_to_dev(wdev->wiphy));
	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(wiphy_to_dev(wdev->wiphy),
					    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(wiphy_to_dev(wdev->wiphy), wdev);
 out:
	wdev_unlock(wdev);
	cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy));
	return err;
}
/* temporary symbol - mark GPL - in the future the handler won't be */
EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_siwap);

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;
}
/* temporary symbol - mark GPL - in the future the handler won't be */
EXPORT_SYMBOL_GPL(cfg80211_mgd_wext_giwap);

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>
	11	#include "nl80211.h"
	12
fffd0934 JB	13	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	14	struct wireless_dev *wdev)
f2129354	15	{
fffd0934 JB	16	struct cfg80211_cached_keys *ck = NULL;
fffd0934 JB	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) {
f2129354 JB	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	}
f2129354 JB	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	}
f2129354 JB	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)
f2129354 JB	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) {
f2129354 JB	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);
667503dd JB	324
f2129354	325	/* no change */
667503dd	326	err = 0;
f2129354 JB	327	if (wdev->wext.ie_len == ie_len &&
f2129354 JB	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,
667503dd JB	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;
667503dd JB	388	break;
f2129354	389	}
667503dd JB	390	wdev_unlock(wdev);
	391
	392	return err;
f2129354 JB	393	}
f2129354 JB	394	EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);