[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 *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;
}

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;
	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;
}

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;
}

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;
}

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,
	55	struct iw_freq freq, char extra)
	56	{
	57	struct wireless_dev *wdev = dev->ieee80211_ptr;
	58	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	59	struct ieee80211_channel *chan;
	60	int err;
	61
	62	/* call only for station! */
	63	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	64	return -EINVAL;
	65
	66	chan = cfg80211_wext_freq(wdev->wiphy, freq);
	67	if (chan && IS_ERR(chan))
	68	return PTR_ERR(chan);
	69
	70	if (chan && (chan->flags & IEEE80211_CHAN_DISABLED))
	71	return -EINVAL;
	72
667503dd JB	73	cfg80211_lock_rdev(rdev);
	74	wdev_lock(wdev);
	75
f2129354 JB	76	if (wdev->sme_state != CFG80211_SME_IDLE) {
f2129354 JB	77	bool event = true;
25e83c49 JB	78
	79	if (wdev->wext.connect.channel == chan) {
	80	err = 0;
	81	goto out;
	82	}
	83
f2129354 JB	84	/* if SSID set, we'll try right again, avoid event */
	85	if (wdev->wext.connect.ssid_len)
	86	event = false;
667503dd JB	87	err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
	88	dev, WLAN_REASON_DEAUTH_LEAVING,
	89	event);
f2129354	90	if (err)
667503dd	91	goto out;
f2129354 JB	92	}
f2129354 JB	93
667503dd	94
f2129354 JB	95	wdev->wext.connect.channel = chan;
	96
	97	/* SSID is not set, we just want to switch channel */
	98	if (wdev->wext.connect.ssid_len && chan) {
667503dd JB	99	err = -EOPNOTSUPP;
	100	if (rdev->ops->set_channel)
	101	err = rdev->ops->set_channel(wdev->wiphy, chan,
	102	NL80211_CHAN_NO_HT);
	103	goto out;
f2129354 JB	104	}
f2129354 JB	105
667503dd JB	106	err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
	107	out:
	108	wdev_unlock(wdev);
	109	cfg80211_unlock_rdev(rdev);
	110	return err;
f2129354	111	}
f2129354 JB	112
	113	int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
	114	struct iw_request_info *info,
	115	struct iw_freq freq, char extra)
	116	{
	117	struct wireless_dev *wdev = dev->ieee80211_ptr;
	118	struct ieee80211_channel *chan = NULL;
	119
	120	/* call only for station! */
	121	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	122	return -EINVAL;
	123
667503dd	124	wdev_lock(wdev);
f2129354	125	if (wdev->current_bss)
19957bb3	126	chan = wdev->current_bss->pub.channel;
f2129354 JB	127	else if (wdev->wext.connect.channel)
f2129354 JB	128	chan = wdev->wext.connect.channel;
667503dd	129	wdev_unlock(wdev);
f2129354 JB	130
	131	if (chan) {
	132	freq->m = chan->center_freq;
	133	freq->e = 6;
	134	return 0;
	135	}
	136
	137	/* no channel if not joining */
	138	return -EINVAL;
	139	}
f2129354 JB	140
	141	int cfg80211_mgd_wext_siwessid(struct net_device *dev,
	142	struct iw_request_info *info,
	143	struct iw_point data, char ssid)
	144	{
	145	struct wireless_dev *wdev = dev->ieee80211_ptr;
	146	size_t len = data->length;
	147	int err;
	148
	149	/* call only for station! */
	150	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	151	return -EINVAL;
	152
	153	if (!data->flags)
	154	len = 0;
	155
	156	/* iwconfig uses nul termination in SSID.. */
	157	if (len > 0 && ssid[len - 1] == '\0')
	158	len--;
	159
667503dd JB	160	cfg80211_lock_rdev(wiphy_to_dev(wdev->wiphy));
	161	wdev_lock(wdev);
	162
	163	err = 0;
	164
f2129354 JB	165	if (wdev->sme_state != CFG80211_SME_IDLE) {
f2129354 JB	166	bool event = true;
25e83c49 JB	167
	168	if (wdev->wext.connect.ssid && len &&
	169	len == wdev->wext.connect.ssid_len &&
	170	memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
	171	goto out;
	172
f2129354 JB	173	/* if SSID set now, we'll try to connect, avoid event */
	174	if (len)
	175	event = false;
667503dd JB	176	err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
	177	dev, WLAN_REASON_DEAUTH_LEAVING,
	178	event);
f2129354	179	if (err)
667503dd	180	goto out;
f2129354 JB	181	}
	182
	183	wdev->wext.connect.ssid = wdev->wext.ssid;
	184	memcpy(wdev->wext.ssid, ssid, len);
	185	wdev->wext.connect.ssid_len = len;
	186
	187	wdev->wext.connect.crypto.control_port = false;
	188
667503dd JB	189	err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
	190	out:
	191	wdev_unlock(wdev);
	192	cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy));
	193	return err;
f2129354	194	}
f2129354 JB	195
	196	int cfg80211_mgd_wext_giwessid(struct net_device *dev,
	197	struct iw_request_info *info,
	198	struct iw_point data, char ssid)
	199	{
	200	struct wireless_dev *wdev = dev->ieee80211_ptr;
	201
	202	/* call only for station! */
	203	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	204	return -EINVAL;
	205
	206	data->flags = 0;
	207
667503dd	208	wdev_lock(wdev);
908d4369	209	if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
f2129354 JB	210	data->flags = 1;
	211	data->length = wdev->wext.connect.ssid_len;
	212	memcpy(ssid, wdev->wext.connect.ssid, data->length);
	213	} else
	214	data->flags = 0;
667503dd	215	wdev_unlock(wdev);
f2129354 JB	216
	217	return 0;
	218	}
f2129354 JB	219
	220	int cfg80211_mgd_wext_siwap(struct net_device *dev,
	221	struct iw_request_info *info,
	222	struct sockaddr ap_addr, char extra)
	223	{
	224	struct wireless_dev *wdev = dev->ieee80211_ptr;
	225	u8 *bssid = ap_addr->sa_data;
	226	int err;
	227
	228	/* call only for station! */
	229	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	230	return -EINVAL;
	231
	232	if (ap_addr->sa_family != ARPHRD_ETHER)
	233	return -EINVAL;
	234
	235	/* automatic mode */
	236	if (is_zero_ether_addr(bssid) \|\| is_broadcast_ether_addr(bssid))
	237	bssid = NULL;
	238
667503dd JB	239	cfg80211_lock_rdev(wiphy_to_dev(wdev->wiphy));
	240	wdev_lock(wdev);
	241
25e83c49 JB	242	if (wdev->sme_state != CFG80211_SME_IDLE) {
	243	err = 0;
	244	/* both automatic */
	245	if (!bssid && !wdev->wext.connect.bssid)
	246	goto out;
f2129354	247
25e83c49 JB	248	/* fixed already - and no change */
	249	if (wdev->wext.connect.bssid && bssid &&
	250	compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
	251	goto out;
f2129354	252
667503dd JB	253	err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
	254	dev, WLAN_REASON_DEAUTH_LEAVING,
	255	false);
f2129354	256	if (err)
667503dd	257	goto out;
f2129354 JB	258	}
	259
	260	if (bssid) {
	261	memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
	262	wdev->wext.connect.bssid = wdev->wext.bssid;
	263	} else
	264	wdev->wext.connect.bssid = NULL;
	265
667503dd JB	266	err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
	267	out:
	268	wdev_unlock(wdev);
	269	cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy));
	270	return err;
f2129354	271	}
f2129354 JB	272
	273	int cfg80211_mgd_wext_giwap(struct net_device *dev,
	274	struct iw_request_info *info,
	275	struct sockaddr ap_addr, char extra)
	276	{
	277	struct wireless_dev *wdev = dev->ieee80211_ptr;
	278
	279	/* call only for station! */
	280	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	281	return -EINVAL;
	282
	283	ap_addr->sa_family = ARPHRD_ETHER;
	284
667503dd	285	wdev_lock(wdev);
f2129354	286	if (wdev->current_bss)
19957bb3	287	memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
f2129354 JB	288	else if (wdev->wext.connect.bssid)
	289	memcpy(ap_addr->sa_data, wdev->wext.connect.bssid, ETH_ALEN);
	290	else
	291	memset(ap_addr->sa_data, 0, ETH_ALEN);
667503dd	292	wdev_unlock(wdev);
f2129354 JB	293
	294	return 0;
	295	}
f2129354 JB	296
	297	int cfg80211_wext_siwgenie(struct net_device *dev,
	298	struct iw_request_info *info,
	299	struct iw_point data, char extra)
	300	{
	301	struct wireless_dev *wdev = dev->ieee80211_ptr;
	302	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	303	u8 *ie = extra;
	304	int ie_len = data->length, err;
	305
	306	if (wdev->iftype != NL80211_IFTYPE_STATION)
	307	return -EOPNOTSUPP;
	308
	309	if (!ie_len)
	310	ie = NULL;
	311
667503dd JB	312	wdev_lock(wdev);
667503dd JB	313
f2129354	314	/* no change */
667503dd	315	err = 0;
f2129354 JB	316	if (wdev->wext.ie_len == ie_len &&
f2129354 JB	317	memcmp(wdev->wext.ie, ie, ie_len) == 0)
667503dd	318	goto out;
f2129354 JB	319
	320	if (ie_len) {
	321	ie = kmemdup(extra, ie_len, GFP_KERNEL);
667503dd JB	322	if (!ie) {
	323	err = -ENOMEM;
	324	goto out;
	325	}
f2129354 JB	326	} else
	327	ie = NULL;
	328
	329	kfree(wdev->wext.ie);
	330	wdev->wext.ie = ie;
	331	wdev->wext.ie_len = ie_len;
	332
	333	if (wdev->sme_state != CFG80211_SME_IDLE) {
667503dd JB	334	err = __cfg80211_disconnect(rdev, dev,
667503dd JB	335	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	336	if (err)
667503dd	337	goto out;
f2129354 JB	338	}
	339
	340	/* userspace better not think we'll reconnect */
667503dd JB	341	err = 0;
	342	out:
	343	wdev_unlock(wdev);
	344	return err;
f2129354 JB	345	}
	346	EXPORT_SYMBOL_GPL(cfg80211_wext_siwgenie);
	347
	348	int cfg80211_wext_siwmlme(struct net_device *dev,
	349	struct iw_request_info *info,
	350	struct iw_point data, char extra)
	351	{
	352	struct wireless_dev *wdev = dev->ieee80211_ptr;
	353	struct iw_mlme mlme = (struct iw_mlme )extra;
	354	struct cfg80211_registered_device *rdev;
667503dd	355	int err;
f2129354 JB	356
	357	if (!wdev)
	358	return -EOPNOTSUPP;
	359
	360	rdev = wiphy_to_dev(wdev->wiphy);
	361
	362	if (wdev->iftype != NL80211_IFTYPE_STATION)
	363	return -EINVAL;
	364
	365	if (mlme->addr.sa_family != ARPHRD_ETHER)
	366	return -EINVAL;
	367
667503dd	368	wdev_lock(wdev);
f2129354 JB	369	switch (mlme->cmd) {
	370	case IW_MLME_DEAUTH:
	371	case IW_MLME_DISASSOC:
667503dd JB	372	err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,
	373	true);
	374	break;
f2129354	375	default:
667503dd JB	376	err = -EOPNOTSUPP;
667503dd JB	377	break;
f2129354	378	}
667503dd JB	379	wdev_unlock(wdev);
	380
	381	return err;
f2129354 JB	382	}
f2129354 JB	383	EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);