[GitHub/exynos8895/android_kernel_samsung_universal8895.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"

static int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
				     struct wireless_dev *wdev)
{
	int err;

	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;

	err = 0;
	if (wdev->wext.connect.ssid_len != 0)
		err = __cfg80211_connect(rdev, wdev->netdev,
					 &wdev->wext.connect);

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

	if (wdev->sme_state != CFG80211_SME_IDLE) {
		bool event = true;
		/* 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->wext.connect.ssid && len &&
	    len == wdev->wext.connect.ssid_len &&
	    memcmp(wdev->wext.connect.ssid, ssid, len))
		goto out;

	if (wdev->sme_state != CFG80211_SME_IDLE) {
		bool event = true;
		/* 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->ssid_len) {
		data->flags = 1;
		data->length = wdev->ssid_len;
		memcpy(ssid, wdev->ssid, 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;
}
/* 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);

	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;

	if (wdev->sme_state != CFG80211_SME_IDLE) {
		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
	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,
667503dd JB	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	}
f2129354 JB	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	}
f2129354 JB	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)
f2129354 JB	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 */
f2129354 JB	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
f2129354 JB	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);
667503dd JB	310
f2129354	311	/* no change */
667503dd	312	err = 0;
f2129354 JB	313	if (wdev->wext.ie_len == ie_len &&
f2129354 JB	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,
667503dd JB	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;
667503dd JB	374	break;
f2129354	375	}
667503dd JB	376	wdev_unlock(wdev);
	377
	378	return err;
f2129354 JB	379	}
f2129354 JB	380	EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);