[mirror_ubuntu-bionic-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 <linux/slab.h>
#include <net/cfg80211.h>
#include <net/cfg80211-wext.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;
	const u8 *prev_bssid = 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;

	if (wdev->wext.keys) {
		wdev->wext.keys->def = wdev->wext.default_key;
		wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
		if (wdev->wext.default_key != -1)
			wdev->wext.connect.privacy = true;
	}

	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];
	}

	if (wdev->wext.prev_bssid_valid)
		prev_bssid = wdev->wext.prev_bssid;

	err = __cfg80211_connect(rdev, wdev->netdev,
				 &wdev->wext.connect, ck, prev_bssid);
	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 = cfg80211_set_freq(rdev, wdev, 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.prev_bssid_valid = false;
	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;
	wdev->wext.connect.crypto.control_port_ethertype =
					cpu_to_be16(ETH_P_PAE);

	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);
	}
	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
		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>
5a0e3ad6	10	#include <linux/slab.h>
f2129354	11	#include <net/cfg80211.h>
262eb9b2	12	#include <net/cfg80211-wext.h>
0e82ffe3	13	#include "wext-compat.h"
f2129354 JB	14	#include "nl80211.h"
f2129354 JB	15
fffd0934 JB	16	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	17	struct wireless_dev *wdev)
f2129354	18	{
fffd0934	19	struct cfg80211_cached_keys *ck = NULL;
f401a6f7	20	const u8 *prev_bssid = NULL;
fffd0934	21	int err, i;
f2129354	22
667503dd JB	23	ASSERT_RDEV_LOCK(rdev);
	24	ASSERT_WDEV_LOCK(wdev);
	25
f2129354 JB	26	if (!netif_running(wdev->netdev))
	27	return 0;
	28
	29	wdev->wext.connect.ie = wdev->wext.ie;
	30	wdev->wext.connect.ie_len = wdev->wext.ie_len;
f2129354	31
fffd0934 JB	32	if (wdev->wext.keys) {
	33	wdev->wext.keys->def = wdev->wext.default_key;
	34	wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
4be3bd8c JB	35	if (wdev->wext.default_key != -1)
4be3bd8c JB	36	wdev->wext.connect.privacy = true;
fffd0934 JB	37	}
	38
	39	if (!wdev->wext.connect.ssid_len)
	40	return 0;
	41
	42	if (wdev->wext.keys) {
	43	ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
	44	if (!ck)
	45	return -ENOMEM;
	46	for (i = 0; i < 6; i++)
	47	ck->params[i].key = ck->data[i];
	48	}
f401a6f7 JB	49
	50	if (wdev->wext.prev_bssid_valid)
	51	prev_bssid = wdev->wext.prev_bssid;
	52
fffd0934	53	err = __cfg80211_connect(rdev, wdev->netdev,
f401a6f7	54	&wdev->wext.connect, ck, prev_bssid);
fffd0934 JB	55	if (err)
fffd0934 JB	56	kfree(ck);
f2129354 JB	57
	58	return err;
	59	}
	60
	61	int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
	62	struct iw_request_info *info,
59bbb6f7	63	struct iw_freq wextfreq, char extra)
f2129354 JB	64	{
	65	struct wireless_dev *wdev = dev->ieee80211_ptr;
	66	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
59bbb6f7 JB	67	struct ieee80211_channel *chan = NULL;
59bbb6f7 JB	68	int err, freq;
f2129354 JB	69
	70	/* call only for station! */
	71	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	72	return -EINVAL;
	73
59bbb6f7 JB	74	freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
	75	if (freq < 0)
	76	return freq;
f2129354	77
59bbb6f7 JB	78	if (freq) {
	79	chan = ieee80211_get_channel(wdev->wiphy, freq);
	80	if (!chan)
	81	return -EINVAL;
	82	if (chan->flags & IEEE80211_CHAN_DISABLED)
	83	return -EINVAL;
	84	}
f2129354	85
667503dd	86	cfg80211_lock_rdev(rdev);
59bbb6f7	87	mutex_lock(&rdev->devlist_mtx);
667503dd JB	88	wdev_lock(wdev);
667503dd JB	89
f2129354 JB	90	if (wdev->sme_state != CFG80211_SME_IDLE) {
f2129354 JB	91	bool event = true;
25e83c49 JB	92
	93	if (wdev->wext.connect.channel == chan) {
	94	err = 0;
	95	goto out;
	96	}
	97
f2129354 JB	98	/* if SSID set, we'll try right again, avoid event */
	99	if (wdev->wext.connect.ssid_len)
	100	event = false;
59bbb6f7 JB	101	err = __cfg80211_disconnect(rdev, dev,
59bbb6f7 JB	102	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	103	if (err)
667503dd	104	goto out;
f2129354 JB	105	}
f2129354 JB	106
667503dd	107
f2129354 JB	108	wdev->wext.connect.channel = chan;
	109
	110	/* SSID is not set, we just want to switch channel */
59bbb6f7	111	if (chan && !wdev->wext.connect.ssid_len) {
f444de05	112	err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
667503dd	113	goto out;
f2129354 JB	114	}
f2129354 JB	115
59bbb6f7	116	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	117	out:
667503dd JB	118	wdev_unlock(wdev);
59bbb6f7	119	mutex_unlock(&rdev->devlist_mtx);
667503dd JB	120	cfg80211_unlock_rdev(rdev);
667503dd JB	121	return err;
f2129354	122	}
f2129354 JB	123
	124	int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
	125	struct iw_request_info *info,
	126	struct iw_freq freq, char extra)
	127	{
	128	struct wireless_dev *wdev = dev->ieee80211_ptr;
	129	struct ieee80211_channel *chan = NULL;
	130
	131	/* call only for station! */
	132	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	133	return -EINVAL;
	134
667503dd	135	wdev_lock(wdev);
f2129354	136	if (wdev->current_bss)
19957bb3	137	chan = wdev->current_bss->pub.channel;
f2129354 JB	138	else if (wdev->wext.connect.channel)
f2129354 JB	139	chan = wdev->wext.connect.channel;
667503dd	140	wdev_unlock(wdev);
f2129354 JB	141
	142	if (chan) {
	143	freq->m = chan->center_freq;
	144	freq->e = 6;
	145	return 0;
	146	}
	147
	148	/* no channel if not joining */
	149	return -EINVAL;
	150	}
f2129354 JB	151
	152	int cfg80211_mgd_wext_siwessid(struct net_device *dev,
	153	struct iw_request_info *info,
	154	struct iw_point data, char ssid)
	155	{
	156	struct wireless_dev *wdev = dev->ieee80211_ptr;
59bbb6f7	157	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
f2129354 JB	158	size_t len = data->length;
	159	int err;
	160
	161	/* call only for station! */
	162	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	163	return -EINVAL;
	164
	165	if (!data->flags)
	166	len = 0;
	167
	168	/* iwconfig uses nul termination in SSID.. */
	169	if (len > 0 && ssid[len - 1] == '\0')
	170	len--;
	171
59bbb6f7 JB	172	cfg80211_lock_rdev(rdev);
59bbb6f7 JB	173	mutex_lock(&rdev->devlist_mtx);
667503dd JB	174	wdev_lock(wdev);
	175
	176	err = 0;
	177
f2129354 JB	178	if (wdev->sme_state != CFG80211_SME_IDLE) {
f2129354 JB	179	bool event = true;
25e83c49 JB	180
	181	if (wdev->wext.connect.ssid && len &&
	182	len == wdev->wext.connect.ssid_len &&
	183	memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
	184	goto out;
	185
f2129354 JB	186	/* if SSID set now, we'll try to connect, avoid event */
	187	if (len)
	188	event = false;
59bbb6f7 JB	189	err = __cfg80211_disconnect(rdev, dev,
59bbb6f7 JB	190	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	191	if (err)
667503dd	192	goto out;
f2129354 JB	193	}
f2129354 JB	194
f401a6f7	195	wdev->wext.prev_bssid_valid = false;
f2129354 JB	196	wdev->wext.connect.ssid = wdev->wext.ssid;
	197	memcpy(wdev->wext.ssid, ssid, len);
	198	wdev->wext.connect.ssid_len = len;
	199
	200	wdev->wext.connect.crypto.control_port = false;
c0692b8f JB	201	wdev->wext.connect.crypto.control_port_ethertype =
c0692b8f JB	202	cpu_to_be16(ETH_P_PAE);
f2129354	203
59bbb6f7	204	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	205	out:
667503dd JB	206	wdev_unlock(wdev);
59bbb6f7 JB	207	mutex_unlock(&rdev->devlist_mtx);
59bbb6f7 JB	208	cfg80211_unlock_rdev(rdev);
667503dd	209	return err;
f2129354	210	}
f2129354 JB	211
	212	int cfg80211_mgd_wext_giwessid(struct net_device *dev,
	213	struct iw_request_info *info,
	214	struct iw_point data, char ssid)
	215	{
	216	struct wireless_dev *wdev = dev->ieee80211_ptr;
	217
	218	/* call only for station! */
	219	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	220	return -EINVAL;
	221
	222	data->flags = 0;
	223
667503dd	224	wdev_lock(wdev);
a42dd7ef ZY	225	if (wdev->current_bss) {
	226	const u8 *ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
	227	WLAN_EID_SSID);
	228	if (ie) {
	229	data->flags = 1;
	230	data->length = ie[1];
	231	memcpy(ssid, ie + 2, data->length);
	232	}
	233	} else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
f2129354 JB	234	data->flags = 1;
	235	data->length = wdev->wext.connect.ssid_len;
	236	memcpy(ssid, wdev->wext.connect.ssid, data->length);
33de4f9d	237	}
667503dd	238	wdev_unlock(wdev);
f2129354 JB	239
	240	return 0;
	241	}
f2129354 JB	242
	243	int cfg80211_mgd_wext_siwap(struct net_device *dev,
	244	struct iw_request_info *info,
	245	struct sockaddr ap_addr, char extra)
	246	{
	247	struct wireless_dev *wdev = dev->ieee80211_ptr;
59bbb6f7	248	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
f2129354 JB	249	u8 *bssid = ap_addr->sa_data;
	250	int err;
	251
	252	/* call only for station! */
	253	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	254	return -EINVAL;
	255
	256	if (ap_addr->sa_family != ARPHRD_ETHER)
	257	return -EINVAL;
	258
	259	/* automatic mode */
	260	if (is_zero_ether_addr(bssid) \|\| is_broadcast_ether_addr(bssid))
	261	bssid = NULL;
	262
59bbb6f7 JB	263	cfg80211_lock_rdev(rdev);
59bbb6f7 JB	264	mutex_lock(&rdev->devlist_mtx);
667503dd JB	265	wdev_lock(wdev);
667503dd JB	266
25e83c49 JB	267	if (wdev->sme_state != CFG80211_SME_IDLE) {
	268	err = 0;
	269	/* both automatic */
	270	if (!bssid && !wdev->wext.connect.bssid)
	271	goto out;
f2129354	272
25e83c49 JB	273	/* fixed already - and no change */
	274	if (wdev->wext.connect.bssid && bssid &&
	275	compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
	276	goto out;
f2129354	277
59bbb6f7 JB	278	err = __cfg80211_disconnect(rdev, dev,
59bbb6f7 JB	279	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	280	if (err)
667503dd	281	goto out;
f2129354 JB	282	}
	283
	284	if (bssid) {
	285	memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
	286	wdev->wext.connect.bssid = wdev->wext.bssid;
	287	} else
	288	wdev->wext.connect.bssid = NULL;
	289
59bbb6f7	290	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	291	out:
667503dd JB	292	wdev_unlock(wdev);
59bbb6f7 JB	293	mutex_unlock(&rdev->devlist_mtx);
59bbb6f7 JB	294	cfg80211_unlock_rdev(rdev);
667503dd	295	return err;
f2129354	296	}
f2129354 JB	297
	298	int cfg80211_mgd_wext_giwap(struct net_device *dev,
	299	struct iw_request_info *info,
	300	struct sockaddr ap_addr, char extra)
	301	{
	302	struct wireless_dev *wdev = dev->ieee80211_ptr;
	303
	304	/* call only for station! */
	305	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	306	return -EINVAL;
	307
	308	ap_addr->sa_family = ARPHRD_ETHER;
	309
667503dd	310	wdev_lock(wdev);
f2129354	311	if (wdev->current_bss)
19957bb3	312	memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
f2129354 JB	313	else
f2129354 JB	314	memset(ap_addr->sa_data, 0, ETH_ALEN);
667503dd	315	wdev_unlock(wdev);
f2129354 JB	316
	317	return 0;
	318	}
f2129354 JB	319
	320	int cfg80211_wext_siwgenie(struct net_device *dev,
	321	struct iw_request_info *info,
	322	struct iw_point data, char extra)
	323	{
	324	struct wireless_dev *wdev = dev->ieee80211_ptr;
	325	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	326	u8 *ie = extra;
	327	int ie_len = data->length, err;
	328
	329	if (wdev->iftype != NL80211_IFTYPE_STATION)
	330	return -EOPNOTSUPP;
	331
	332	if (!ie_len)
	333	ie = NULL;
	334
667503dd JB	335	wdev_lock(wdev);
667503dd JB	336
f2129354	337	/* no change */
667503dd	338	err = 0;
f2129354 JB	339	if (wdev->wext.ie_len == ie_len &&
f2129354 JB	340	memcmp(wdev->wext.ie, ie, ie_len) == 0)
667503dd	341	goto out;
f2129354 JB	342
	343	if (ie_len) {
	344	ie = kmemdup(extra, ie_len, GFP_KERNEL);
667503dd JB	345	if (!ie) {
	346	err = -ENOMEM;
	347	goto out;
	348	}
f2129354 JB	349	} else
	350	ie = NULL;
	351
	352	kfree(wdev->wext.ie);
	353	wdev->wext.ie = ie;
	354	wdev->wext.ie_len = ie_len;
	355
	356	if (wdev->sme_state != CFG80211_SME_IDLE) {
667503dd JB	357	err = __cfg80211_disconnect(rdev, dev,
667503dd JB	358	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	359	if (err)
667503dd	360	goto out;
f2129354 JB	361	}
	362
	363	/* userspace better not think we'll reconnect */
667503dd JB	364	err = 0;
	365	out:
	366	wdev_unlock(wdev);
	367	return err;
f2129354 JB	368	}
	369	EXPORT_SYMBOL_GPL(cfg80211_wext_siwgenie);
	370
	371	int cfg80211_wext_siwmlme(struct net_device *dev,
	372	struct iw_request_info *info,
	373	struct iw_point data, char extra)
	374	{
	375	struct wireless_dev *wdev = dev->ieee80211_ptr;
	376	struct iw_mlme mlme = (struct iw_mlme )extra;
	377	struct cfg80211_registered_device *rdev;
667503dd	378	int err;
f2129354 JB	379
	380	if (!wdev)
	381	return -EOPNOTSUPP;
	382
	383	rdev = wiphy_to_dev(wdev->wiphy);
	384
	385	if (wdev->iftype != NL80211_IFTYPE_STATION)
	386	return -EINVAL;
	387
	388	if (mlme->addr.sa_family != ARPHRD_ETHER)
	389	return -EINVAL;
	390
667503dd	391	wdev_lock(wdev);
f2129354 JB	392	switch (mlme->cmd) {
	393	case IW_MLME_DEAUTH:
	394	case IW_MLME_DISASSOC:
667503dd JB	395	err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,
	396	true);
	397	break;
f2129354	398	default:
667503dd JB	399	err = -EOPNOTSUPP;
667503dd JB	400	break;
f2129354	401	}
667503dd JB	402	wdev_unlock(wdev);
	403
	404	return err;
f2129354 JB	405	}
f2129354 JB	406	EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);