[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/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_RTNL();
	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;
		if (wdev->wext.default_key != -1)
			wdev->wext.connect.privacy = true;
	}

	if (!wdev->wext.connect.ssid_len)
		return 0;

	if (wdev->wext.keys && wdev->wext.keys->def != -1) {
		ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
		if (!ck)
			return -ENOMEM;
		for (i = 0; i < CFG80211_MAX_WEP_KEYS; 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)
		kzfree(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_rdev(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(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;
	}

	wdev_lock(wdev);

	if (wdev->conn) {
		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;
	err = cfg80211_mgd_wext_connect(rdev, wdev);
 out:
	wdev_unlock(wdev);
	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_rdev(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--;

	wdev_lock(wdev);

	err = 0;

	if (wdev->conn) {
		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);
	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;

		rcu_read_lock();
		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);
		}
		rcu_read_unlock();
	} 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_rdev(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;

	wdev_lock(wdev);

	if (wdev->conn) {
		err = 0;
		/* both automatic */
		if (!bssid && !wdev->wext.connect.bssid)
			goto out;

		/* fixed already - and no change */
		if (wdev->wext.connect.bssid && bssid &&
		    ether_addr_equal(bssid, wdev->wext.connect.bssid))
			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);
	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
		eth_zero_addr(ap_addr->sa_data);
	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_rdev(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->conn) {
		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_rdev(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
73fb08e2	24	ASSERT_RTNL();
667503dd JB	25	ASSERT_WDEV_LOCK(wdev);
667503dd JB	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) {
fffd0934 JB	37	wdev->wext.keys->def = wdev->wext.default_key;
4be3bd8c JB	38	if (wdev->wext.default_key != -1)
4be3bd8c JB	39	wdev->wext.connect.privacy = true;
fffd0934 JB	40	}
	41
	42	if (!wdev->wext.connect.ssid_len)
	43	return 0;
	44
f1c1f17a	45	if (wdev->wext.keys && wdev->wext.keys->def != -1) {
fffd0934 JB	46	ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
	47	if (!ck)
	48	return -ENOMEM;
b8676221	49	for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++)
fffd0934 JB	50	ck->params[i].key = ck->data[i];
fffd0934 JB	51	}
f401a6f7 JB	52
	53	if (wdev->wext.prev_bssid_valid)
	54	prev_bssid = wdev->wext.prev_bssid;
	55
83739b03 JB	56	err = cfg80211_connect(rdev, wdev->netdev,
83739b03 JB	57	&wdev->wext.connect, ck, prev_bssid);
fffd0934	58	if (err)
b47f610b	59	kzfree(ck);
f2129354 JB	60
	61	return err;
	62	}
	63
	64	int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
	65	struct iw_request_info *info,
59bbb6f7	66	struct iw_freq wextfreq, char extra)
f2129354 JB	67	{
f2129354 JB	68	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	69	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
59bbb6f7 JB	70	struct ieee80211_channel *chan = NULL;
59bbb6f7 JB	71	int err, freq;
f2129354 JB	72
	73	/* call only for station! */
	74	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	75	return -EINVAL;
	76
96998e3a	77	freq = cfg80211_wext_freq(wextfreq);
59bbb6f7 JB	78	if (freq < 0)
59bbb6f7 JB	79	return freq;
f2129354	80
59bbb6f7 JB	81	if (freq) {
	82	chan = ieee80211_get_channel(wdev->wiphy, freq);
	83	if (!chan)
	84	return -EINVAL;
	85	if (chan->flags & IEEE80211_CHAN_DISABLED)
	86	return -EINVAL;
	87	}
f2129354	88
667503dd JB	89	wdev_lock(wdev);
667503dd JB	90
ceca7b71	91	if (wdev->conn) {
f2129354	92	bool event = true;
25e83c49 JB	93
	94	if (wdev->wext.connect.channel == chan) {
	95	err = 0;
	96	goto out;
	97	}
	98
f2129354 JB	99	/* if SSID set, we'll try right again, avoid event */
	100	if (wdev->wext.connect.ssid_len)
	101	event = false;
83739b03 JB	102	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	103	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	104	if (err)
667503dd	105	goto out;
f2129354 JB	106	}
	107
	108	wdev->wext.connect.channel = chan;
59bbb6f7	109	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	110	out:
667503dd JB	111	wdev_unlock(wdev);
667503dd	112	return err;
f2129354	113	}
f2129354 JB	114
	115	int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
	116	struct iw_request_info *info,
	117	struct iw_freq freq, char extra)
	118	{
	119	struct wireless_dev *wdev = dev->ieee80211_ptr;
	120	struct ieee80211_channel *chan = NULL;
	121
	122	/* call only for station! */
	123	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	124	return -EINVAL;
	125
667503dd	126	wdev_lock(wdev);
f2129354	127	if (wdev->current_bss)
19957bb3	128	chan = wdev->current_bss->pub.channel;
f2129354 JB	129	else if (wdev->wext.connect.channel)
f2129354 JB	130	chan = wdev->wext.connect.channel;
667503dd	131	wdev_unlock(wdev);
f2129354 JB	132
	133	if (chan) {
	134	freq->m = chan->center_freq;
	135	freq->e = 6;
	136	return 0;
	137	}
	138
	139	/* no channel if not joining */
	140	return -EINVAL;
	141	}
f2129354 JB	142
	143	int cfg80211_mgd_wext_siwessid(struct net_device *dev,
	144	struct iw_request_info *info,
	145	struct iw_point data, char ssid)
	146	{
	147	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	148	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	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	wdev_lock(wdev);
	164
	165	err = 0;
	166
ceca7b71	167	if (wdev->conn) {
f2129354	168	bool event = true;
25e83c49 JB	169
	170	if (wdev->wext.connect.ssid && len &&
	171	len == wdev->wext.connect.ssid_len &&
	172	memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
	173	goto out;
	174
f2129354 JB	175	/* if SSID set now, we'll try to connect, avoid event */
	176	if (len)
	177	event = false;
83739b03 JB	178	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	179	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	180	if (err)
667503dd	181	goto out;
f2129354 JB	182	}
f2129354 JB	183
f401a6f7	184	wdev->wext.prev_bssid_valid = false;
f2129354 JB	185	wdev->wext.connect.ssid = wdev->wext.ssid;
	186	memcpy(wdev->wext.ssid, ssid, len);
	187	wdev->wext.connect.ssid_len = len;
	188
	189	wdev->wext.connect.crypto.control_port = false;
c0692b8f JB	190	wdev->wext.connect.crypto.control_port_ethertype =
c0692b8f JB	191	cpu_to_be16(ETH_P_PAE);
f2129354	192
59bbb6f7	193	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	194	out:
667503dd JB	195	wdev_unlock(wdev);
667503dd	196	return err;
f2129354	197	}
f2129354 JB	198
	199	int cfg80211_mgd_wext_giwessid(struct net_device *dev,
	200	struct iw_request_info *info,
	201	struct iw_point data, char ssid)
	202	{
	203	struct wireless_dev *wdev = dev->ieee80211_ptr;
	204
	205	/* call only for station! */
	206	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	207	return -EINVAL;
	208
	209	data->flags = 0;
	210
667503dd	211	wdev_lock(wdev);
a42dd7ef	212	if (wdev->current_bss) {
9caf0364 JB	213	const u8 *ie;
	214
	215	rcu_read_lock();
	216	ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
	217	WLAN_EID_SSID);
a42dd7ef ZY	218	if (ie) {
	219	data->flags = 1;
	220	data->length = ie[1];
	221	memcpy(ssid, ie + 2, data->length);
	222	}
9caf0364	223	rcu_read_unlock();
a42dd7ef	224	} else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
f2129354 JB	225	data->flags = 1;
	226	data->length = wdev->wext.connect.ssid_len;
	227	memcpy(ssid, wdev->wext.connect.ssid, data->length);
33de4f9d	228	}
667503dd	229	wdev_unlock(wdev);
f2129354 JB	230
	231	return 0;
	232	}
f2129354 JB	233
	234	int cfg80211_mgd_wext_siwap(struct net_device *dev,
	235	struct iw_request_info *info,
	236	struct sockaddr ap_addr, char extra)
	237	{
	238	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	239	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	240	u8 *bssid = ap_addr->sa_data;
	241	int err;
	242
	243	/* call only for station! */
	244	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	245	return -EINVAL;
	246
	247	if (ap_addr->sa_family != ARPHRD_ETHER)
	248	return -EINVAL;
	249
	250	/* automatic mode */
	251	if (is_zero_ether_addr(bssid) \|\| is_broadcast_ether_addr(bssid))
	252	bssid = NULL;
	253
667503dd JB	254	wdev_lock(wdev);
667503dd JB	255
ceca7b71	256	if (wdev->conn) {
25e83c49 JB	257	err = 0;
	258	/* both automatic */
	259	if (!bssid && !wdev->wext.connect.bssid)
	260	goto out;
f2129354	261
25e83c49 JB	262	/* fixed already - and no change */
25e83c49 JB	263	if (wdev->wext.connect.bssid && bssid &&
ac422d3c	264	ether_addr_equal(bssid, wdev->wext.connect.bssid))
25e83c49	265	goto out;
f2129354	266
83739b03 JB	267	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	268	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	269	if (err)
667503dd	270	goto out;
f2129354 JB	271	}
	272
	273	if (bssid) {
	274	memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
	275	wdev->wext.connect.bssid = wdev->wext.bssid;
	276	} else
	277	wdev->wext.connect.bssid = NULL;
	278
59bbb6f7	279	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	280	out:
667503dd JB	281	wdev_unlock(wdev);
667503dd	282	return err;
f2129354	283	}
f2129354 JB	284
	285	int cfg80211_mgd_wext_giwap(struct net_device *dev,
	286	struct iw_request_info *info,
	287	struct sockaddr ap_addr, char extra)
	288	{
	289	struct wireless_dev *wdev = dev->ieee80211_ptr;
	290
	291	/* call only for station! */
	292	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	293	return -EINVAL;
	294
	295	ap_addr->sa_family = ARPHRD_ETHER;
	296
667503dd	297	wdev_lock(wdev);
f2129354	298	if (wdev->current_bss)
19957bb3	299	memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
f2129354	300	else
d2beae10	301	eth_zero_addr(ap_addr->sa_data);
667503dd	302	wdev_unlock(wdev);
f2129354 JB	303
	304	return 0;
	305	}
f2129354 JB	306
	307	int cfg80211_wext_siwgenie(struct net_device *dev,
	308	struct iw_request_info *info,
	309	struct iw_point data, char extra)
	310	{
	311	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	312	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	313	u8 *ie = extra;
	314	int ie_len = data->length, err;
	315
	316	if (wdev->iftype != NL80211_IFTYPE_STATION)
	317	return -EOPNOTSUPP;
	318
	319	if (!ie_len)
	320	ie = NULL;
	321
667503dd JB	322	wdev_lock(wdev);
667503dd JB	323
f2129354	324	/* no change */
667503dd	325	err = 0;
f2129354 JB	326	if (wdev->wext.ie_len == ie_len &&
f2129354 JB	327	memcmp(wdev->wext.ie, ie, ie_len) == 0)
667503dd	328	goto out;
f2129354 JB	329
	330	if (ie_len) {
	331	ie = kmemdup(extra, ie_len, GFP_KERNEL);
667503dd JB	332	if (!ie) {
	333	err = -ENOMEM;
	334	goto out;
	335	}
f2129354 JB	336	} else
	337	ie = NULL;
	338
	339	kfree(wdev->wext.ie);
	340	wdev->wext.ie = ie;
	341	wdev->wext.ie_len = ie_len;
	342
ceca7b71	343	if (wdev->conn) {
83739b03 JB	344	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	345	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	346	if (err)
667503dd	347	goto out;
f2129354 JB	348	}
	349
	350	/* userspace better not think we'll reconnect */
667503dd JB	351	err = 0;
	352	out:
	353	wdev_unlock(wdev);
	354	return err;
f2129354	355	}
f2129354 JB	356
	357	int cfg80211_wext_siwmlme(struct net_device *dev,
	358	struct iw_request_info *info,
	359	struct iw_point data, char extra)
	360	{
	361	struct wireless_dev *wdev = dev->ieee80211_ptr;
	362	struct iw_mlme mlme = (struct iw_mlme )extra;
	363	struct cfg80211_registered_device *rdev;
667503dd	364	int err;
f2129354 JB	365
	366	if (!wdev)
	367	return -EOPNOTSUPP;
	368
f26cbf40	369	rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	370
	371	if (wdev->iftype != NL80211_IFTYPE_STATION)
	372	return -EINVAL;
	373
	374	if (mlme->addr.sa_family != ARPHRD_ETHER)
	375	return -EINVAL;
	376
667503dd	377	wdev_lock(wdev);
f2129354 JB	378	switch (mlme->cmd) {
	379	case IW_MLME_DEAUTH:
	380	case IW_MLME_DISASSOC:
83739b03	381	err = cfg80211_disconnect(rdev, dev, mlme->reason_code, true);
667503dd	382	break;
f2129354	383	default:
667503dd JB	384	err = -EOPNOTSUPP;
667503dd JB	385	break;
f2129354	386	}
667503dd JB	387	wdev_unlock(wdev);
	388
	389	return err;
f2129354	390	}