[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/export.h>
#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;

	/* Use default background scan period */
	wdev->wext.connect.bg_scan_period = -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.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;
}

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;
}
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
bc3b2d7f	8	#include <linux/export.h>
f2129354 JB	9	#include <linux/etherdevice.h>
f2129354 JB	10	#include <linux/if_arp.h>
5a0e3ad6	11	#include <linux/slab.h>
f2129354	12	#include <net/cfg80211.h>
262eb9b2	13	#include <net/cfg80211-wext.h>
0e82ffe3	14	#include "wext-compat.h"
f2129354 JB	15	#include "nl80211.h"
f2129354 JB	16
fffd0934 JB	17	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	18	struct wireless_dev *wdev)
f2129354	19	{
fffd0934	20	struct cfg80211_cached_keys *ck = NULL;
f401a6f7	21	const u8 *prev_bssid = NULL;
fffd0934	22	int err, i;
f2129354	23
667503dd JB	24	ASSERT_RDEV_LOCK(rdev);
	25	ASSERT_WDEV_LOCK(wdev);
	26
f2129354 JB	27	if (!netif_running(wdev->netdev))
	28	return 0;
	29
	30	wdev->wext.connect.ie = wdev->wext.ie;
	31	wdev->wext.connect.ie_len = wdev->wext.ie_len;
f2129354	32
4486ea98 BS	33	/* Use default background scan period */
	34	wdev->wext.connect.bg_scan_period = -1;
	35
fffd0934 JB	36	if (wdev->wext.keys) {
	37	wdev->wext.keys->def = wdev->wext.default_key;
	38	wdev->wext.keys->defmgmt = wdev->wext.default_mgmt_key;
4be3bd8c JB	39	if (wdev->wext.default_key != -1)
4be3bd8c JB	40	wdev->wext.connect.privacy = true;
fffd0934 JB	41	}
	42
	43	if (!wdev->wext.connect.ssid_len)
	44	return 0;
	45
	46	if (wdev->wext.keys) {
	47	ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
	48	if (!ck)
	49	return -ENOMEM;
	50	for (i = 0; i < 6; i++)
	51	ck->params[i].key = ck->data[i];
	52	}
f401a6f7 JB	53
	54	if (wdev->wext.prev_bssid_valid)
	55	prev_bssid = wdev->wext.prev_bssid;
	56
fffd0934	57	err = __cfg80211_connect(rdev, wdev->netdev,
f401a6f7	58	&wdev->wext.connect, ck, prev_bssid);
fffd0934 JB	59	if (err)
fffd0934 JB	60	kfree(ck);
f2129354 JB	61
	62	return err;
	63	}
	64
	65	int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
	66	struct iw_request_info *info,
59bbb6f7	67	struct iw_freq wextfreq, char extra)
f2129354 JB	68	{
	69	struct wireless_dev *wdev = dev->ieee80211_ptr;
	70	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
59bbb6f7 JB	71	struct ieee80211_channel *chan = NULL;
59bbb6f7 JB	72	int err, freq;
f2129354 JB	73
	74	/* call only for station! */
	75	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	76	return -EINVAL;
	77
59bbb6f7 JB	78	freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
	79	if (freq < 0)
	80	return freq;
f2129354	81
59bbb6f7 JB	82	if (freq) {
	83	chan = ieee80211_get_channel(wdev->wiphy, freq);
	84	if (!chan)
	85	return -EINVAL;
	86	if (chan->flags & IEEE80211_CHAN_DISABLED)
	87	return -EINVAL;
	88	}
f2129354	89
667503dd	90	cfg80211_lock_rdev(rdev);
59bbb6f7	91	mutex_lock(&rdev->devlist_mtx);
667503dd JB	92	wdev_lock(wdev);
667503dd JB	93
f2129354 JB	94	if (wdev->sme_state != CFG80211_SME_IDLE) {
f2129354 JB	95	bool event = true;
25e83c49 JB	96
	97	if (wdev->wext.connect.channel == chan) {
	98	err = 0;
	99	goto out;
	100	}
	101
f2129354 JB	102	/* if SSID set, we'll try right again, avoid event */
	103	if (wdev->wext.connect.ssid_len)
	104	event = false;
59bbb6f7 JB	105	err = __cfg80211_disconnect(rdev, dev,
59bbb6f7 JB	106	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	107	if (err)
667503dd	108	goto out;
f2129354 JB	109	}
f2129354 JB	110
667503dd	111
f2129354 JB	112	wdev->wext.connect.channel = chan;
	113
	114	/* SSID is not set, we just want to switch channel */
59bbb6f7	115	if (chan && !wdev->wext.connect.ssid_len) {
f444de05	116	err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
667503dd	117	goto out;
f2129354 JB	118	}
f2129354 JB	119
59bbb6f7	120	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	121	out:
667503dd JB	122	wdev_unlock(wdev);
59bbb6f7	123	mutex_unlock(&rdev->devlist_mtx);
667503dd JB	124	cfg80211_unlock_rdev(rdev);
667503dd JB	125	return err;
f2129354	126	}
f2129354 JB	127
	128	int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
	129	struct iw_request_info *info,
	130	struct iw_freq freq, char extra)
	131	{
	132	struct wireless_dev *wdev = dev->ieee80211_ptr;
	133	struct ieee80211_channel *chan = NULL;
	134
	135	/* call only for station! */
	136	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	137	return -EINVAL;
	138
667503dd	139	wdev_lock(wdev);
f2129354	140	if (wdev->current_bss)
19957bb3	141	chan = wdev->current_bss->pub.channel;
f2129354 JB	142	else if (wdev->wext.connect.channel)
f2129354 JB	143	chan = wdev->wext.connect.channel;
667503dd	144	wdev_unlock(wdev);
f2129354 JB	145
	146	if (chan) {
	147	freq->m = chan->center_freq;
	148	freq->e = 6;
	149	return 0;
	150	}
	151
	152	/* no channel if not joining */
	153	return -EINVAL;
	154	}
f2129354 JB	155
	156	int cfg80211_mgd_wext_siwessid(struct net_device *dev,
	157	struct iw_request_info *info,
	158	struct iw_point data, char ssid)
	159	{
	160	struct wireless_dev *wdev = dev->ieee80211_ptr;
59bbb6f7	161	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
f2129354 JB	162	size_t len = data->length;
	163	int err;
	164
	165	/* call only for station! */
	166	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	167	return -EINVAL;
	168
	169	if (!data->flags)
	170	len = 0;
	171
	172	/* iwconfig uses nul termination in SSID.. */
	173	if (len > 0 && ssid[len - 1] == '\0')
	174	len--;
	175
59bbb6f7 JB	176	cfg80211_lock_rdev(rdev);
59bbb6f7 JB	177	mutex_lock(&rdev->devlist_mtx);
667503dd JB	178	wdev_lock(wdev);
	179
	180	err = 0;
	181
f2129354 JB	182	if (wdev->sme_state != CFG80211_SME_IDLE) {
f2129354 JB	183	bool event = true;
25e83c49 JB	184
	185	if (wdev->wext.connect.ssid && len &&
	186	len == wdev->wext.connect.ssid_len &&
	187	memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
	188	goto out;
	189
f2129354 JB	190	/* if SSID set now, we'll try to connect, avoid event */
	191	if (len)
	192	event = false;
59bbb6f7 JB	193	err = __cfg80211_disconnect(rdev, dev,
59bbb6f7 JB	194	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	195	if (err)
667503dd	196	goto out;
f2129354 JB	197	}
f2129354 JB	198
f401a6f7	199	wdev->wext.prev_bssid_valid = false;
f2129354 JB	200	wdev->wext.connect.ssid = wdev->wext.ssid;
	201	memcpy(wdev->wext.ssid, ssid, len);
	202	wdev->wext.connect.ssid_len = len;
	203
	204	wdev->wext.connect.crypto.control_port = false;
c0692b8f JB	205	wdev->wext.connect.crypto.control_port_ethertype =
c0692b8f JB	206	cpu_to_be16(ETH_P_PAE);
f2129354	207
59bbb6f7	208	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	209	out:
667503dd JB	210	wdev_unlock(wdev);
59bbb6f7 JB	211	mutex_unlock(&rdev->devlist_mtx);
59bbb6f7 JB	212	cfg80211_unlock_rdev(rdev);
667503dd	213	return err;
f2129354	214	}
f2129354 JB	215
	216	int cfg80211_mgd_wext_giwessid(struct net_device *dev,
	217	struct iw_request_info *info,
	218	struct iw_point data, char ssid)
	219	{
	220	struct wireless_dev *wdev = dev->ieee80211_ptr;
	221
	222	/* call only for station! */
	223	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	224	return -EINVAL;
	225
	226	data->flags = 0;
	227
667503dd	228	wdev_lock(wdev);
a42dd7ef ZY	229	if (wdev->current_bss) {
	230	const u8 *ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
	231	WLAN_EID_SSID);
	232	if (ie) {
	233	data->flags = 1;
	234	data->length = ie[1];
	235	memcpy(ssid, ie + 2, data->length);
	236	}
	237	} else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
f2129354 JB	238	data->flags = 1;
	239	data->length = wdev->wext.connect.ssid_len;
	240	memcpy(ssid, wdev->wext.connect.ssid, data->length);
33de4f9d	241	}
667503dd	242	wdev_unlock(wdev);
f2129354 JB	243
	244	return 0;
	245	}
f2129354 JB	246
	247	int cfg80211_mgd_wext_siwap(struct net_device *dev,
	248	struct iw_request_info *info,
	249	struct sockaddr ap_addr, char extra)
	250	{
	251	struct wireless_dev *wdev = dev->ieee80211_ptr;
59bbb6f7	252	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
f2129354 JB	253	u8 *bssid = ap_addr->sa_data;
	254	int err;
	255
	256	/* call only for station! */
	257	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	258	return -EINVAL;
	259
	260	if (ap_addr->sa_family != ARPHRD_ETHER)
	261	return -EINVAL;
	262
	263	/* automatic mode */
	264	if (is_zero_ether_addr(bssid) \|\| is_broadcast_ether_addr(bssid))
	265	bssid = NULL;
	266
59bbb6f7 JB	267	cfg80211_lock_rdev(rdev);
59bbb6f7 JB	268	mutex_lock(&rdev->devlist_mtx);
667503dd JB	269	wdev_lock(wdev);
667503dd JB	270
25e83c49 JB	271	if (wdev->sme_state != CFG80211_SME_IDLE) {
	272	err = 0;
	273	/* both automatic */
	274	if (!bssid && !wdev->wext.connect.bssid)
	275	goto out;
f2129354	276
25e83c49 JB	277	/* fixed already - and no change */
	278	if (wdev->wext.connect.bssid && bssid &&
	279	compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
	280	goto out;
f2129354	281
59bbb6f7 JB	282	err = __cfg80211_disconnect(rdev, dev,
59bbb6f7 JB	283	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	284	if (err)
667503dd	285	goto out;
f2129354 JB	286	}
	287
	288	if (bssid) {
	289	memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
	290	wdev->wext.connect.bssid = wdev->wext.bssid;
	291	} else
	292	wdev->wext.connect.bssid = NULL;
	293
59bbb6f7	294	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	295	out:
667503dd JB	296	wdev_unlock(wdev);
59bbb6f7 JB	297	mutex_unlock(&rdev->devlist_mtx);
59bbb6f7 JB	298	cfg80211_unlock_rdev(rdev);
667503dd	299	return err;
f2129354	300	}
f2129354 JB	301
	302	int cfg80211_mgd_wext_giwap(struct net_device *dev,
	303	struct iw_request_info *info,
	304	struct sockaddr ap_addr, char extra)
	305	{
	306	struct wireless_dev *wdev = dev->ieee80211_ptr;
	307
	308	/* call only for station! */
	309	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	310	return -EINVAL;
	311
	312	ap_addr->sa_family = ARPHRD_ETHER;
	313
667503dd	314	wdev_lock(wdev);
f2129354	315	if (wdev->current_bss)
19957bb3	316	memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
f2129354 JB	317	else
f2129354 JB	318	memset(ap_addr->sa_data, 0, ETH_ALEN);
667503dd	319	wdev_unlock(wdev);
f2129354 JB	320
	321	return 0;
	322	}
f2129354 JB	323
	324	int cfg80211_wext_siwgenie(struct net_device *dev,
	325	struct iw_request_info *info,
	326	struct iw_point data, char extra)
	327	{
	328	struct wireless_dev *wdev = dev->ieee80211_ptr;
	329	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	330	u8 *ie = extra;
	331	int ie_len = data->length, err;
	332
	333	if (wdev->iftype != NL80211_IFTYPE_STATION)
	334	return -EOPNOTSUPP;
	335
	336	if (!ie_len)
	337	ie = NULL;
	338
667503dd JB	339	wdev_lock(wdev);
667503dd JB	340
f2129354	341	/* no change */
667503dd	342	err = 0;
f2129354 JB	343	if (wdev->wext.ie_len == ie_len &&
f2129354 JB	344	memcmp(wdev->wext.ie, ie, ie_len) == 0)
667503dd	345	goto out;
f2129354 JB	346
	347	if (ie_len) {
	348	ie = kmemdup(extra, ie_len, GFP_KERNEL);
667503dd JB	349	if (!ie) {
	350	err = -ENOMEM;
	351	goto out;
	352	}
f2129354 JB	353	} else
	354	ie = NULL;
	355
	356	kfree(wdev->wext.ie);
	357	wdev->wext.ie = ie;
	358	wdev->wext.ie_len = ie_len;
	359
	360	if (wdev->sme_state != CFG80211_SME_IDLE) {
667503dd JB	361	err = __cfg80211_disconnect(rdev, dev,
667503dd JB	362	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	363	if (err)
667503dd	364	goto out;
f2129354 JB	365	}
	366
	367	/* userspace better not think we'll reconnect */
667503dd JB	368	err = 0;
	369	out:
	370	wdev_unlock(wdev);
	371	return err;
f2129354	372	}
f2129354 JB	373
	374	int cfg80211_wext_siwmlme(struct net_device *dev,
	375	struct iw_request_info *info,
	376	struct iw_point data, char extra)
	377	{
	378	struct wireless_dev *wdev = dev->ieee80211_ptr;
	379	struct iw_mlme mlme = (struct iw_mlme )extra;
	380	struct cfg80211_registered_device *rdev;
667503dd	381	int err;
f2129354 JB	382
	383	if (!wdev)
	384	return -EOPNOTSUPP;
	385
	386	rdev = wiphy_to_dev(wdev->wiphy);
	387
	388	if (wdev->iftype != NL80211_IFTYPE_STATION)
	389	return -EINVAL;
	390
	391	if (mlme->addr.sa_family != ARPHRD_ETHER)
	392	return -EINVAL;
	393
667503dd	394	wdev_lock(wdev);
f2129354 JB	395	switch (mlme->cmd) {
	396	case IW_MLME_DEAUTH:
	397	case IW_MLME_DISASSOC:
667503dd JB	398	err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,
	399	true);
	400	break;
f2129354	401	default:
667503dd JB	402	err = -EOPNOTSUPP;
667503dd JB	403	break;
f2129354	404	}
667503dd JB	405	wdev_unlock(wdev);
	406
	407	return err;
f2129354	408	}