[mirror_ubuntu-zesty-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;

	/*
	 * SSID is not set, we just want to switch monitor channel,
	 * this is really just backward compatibility, if the SSID
	 * is set then we use the channel to select the BSS to use
	 * to connect to instead. If we were connected on another
	 * channel we disconnected above and reconnect below.
	 */
	if (chan && !wdev->wext.connect.ssid_len) {
		struct cfg80211_chan_def chandef = {
			.width = NL80211_CHAN_WIDTH_20_NOHT,
			.center_freq1 = freq,
		};

		chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
		if (chandef.chan)
			err = cfg80211_set_monitor_channel(rdev, &chandef);
		else
			err = -EINVAL;
		goto out;
	}

	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	}
f2129354 JB	107
667503dd	108
f2129354 JB	109	wdev->wext.connect.channel = chan;
f2129354 JB	110
e8c9bd5b JB	111	/*
	112	* SSID is not set, we just want to switch monitor channel,
	113	* this is really just backward compatibility, if the SSID
	114	* is set then we use the channel to select the BSS to use
	115	* to connect to instead. If we were connected on another
	116	* channel we disconnected above and reconnect below.
	117	*/
59bbb6f7	118	if (chan && !wdev->wext.connect.ssid_len) {
683b6d3b	119	struct cfg80211_chan_def chandef = {
3d9d1d66 JB	120	.width = NL80211_CHAN_WIDTH_20_NOHT,
3d9d1d66 JB	121	.center_freq1 = freq,
683b6d3b JB	122	};
	123
	124	chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
	125	if (chandef.chan)
	126	err = cfg80211_set_monitor_channel(rdev, &chandef);
	127	else
	128	err = -EINVAL;
667503dd	129	goto out;
f2129354 JB	130	}
f2129354 JB	131
59bbb6f7	132	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	133	out:
667503dd JB	134	wdev_unlock(wdev);
667503dd	135	return err;
f2129354	136	}
f2129354 JB	137
	138	int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
	139	struct iw_request_info *info,
	140	struct iw_freq freq, char extra)
	141	{
	142	struct wireless_dev *wdev = dev->ieee80211_ptr;
	143	struct ieee80211_channel *chan = NULL;
	144
	145	/* call only for station! */
	146	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	147	return -EINVAL;
	148
667503dd	149	wdev_lock(wdev);
f2129354	150	if (wdev->current_bss)
19957bb3	151	chan = wdev->current_bss->pub.channel;
f2129354 JB	152	else if (wdev->wext.connect.channel)
f2129354 JB	153	chan = wdev->wext.connect.channel;
667503dd	154	wdev_unlock(wdev);
f2129354 JB	155
	156	if (chan) {
	157	freq->m = chan->center_freq;
	158	freq->e = 6;
	159	return 0;
	160	}
	161
	162	/* no channel if not joining */
	163	return -EINVAL;
	164	}
f2129354 JB	165
	166	int cfg80211_mgd_wext_siwessid(struct net_device *dev,
	167	struct iw_request_info *info,
	168	struct iw_point data, char ssid)
	169	{
	170	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	171	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	172	size_t len = data->length;
	173	int err;
	174
	175	/* call only for station! */
	176	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	177	return -EINVAL;
	178
	179	if (!data->flags)
	180	len = 0;
	181
	182	/* iwconfig uses nul termination in SSID.. */
	183	if (len > 0 && ssid[len - 1] == '\0')
	184	len--;
	185
667503dd JB	186	wdev_lock(wdev);
	187
	188	err = 0;
	189
ceca7b71	190	if (wdev->conn) {
f2129354	191	bool event = true;
25e83c49 JB	192
	193	if (wdev->wext.connect.ssid && len &&
	194	len == wdev->wext.connect.ssid_len &&
	195	memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
	196	goto out;
	197
f2129354 JB	198	/* if SSID set now, we'll try to connect, avoid event */
	199	if (len)
	200	event = false;
83739b03 JB	201	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	202	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	203	if (err)
667503dd	204	goto out;
f2129354 JB	205	}
f2129354 JB	206
f401a6f7	207	wdev->wext.prev_bssid_valid = false;
f2129354 JB	208	wdev->wext.connect.ssid = wdev->wext.ssid;
	209	memcpy(wdev->wext.ssid, ssid, len);
	210	wdev->wext.connect.ssid_len = len;
	211
	212	wdev->wext.connect.crypto.control_port = false;
c0692b8f JB	213	wdev->wext.connect.crypto.control_port_ethertype =
c0692b8f JB	214	cpu_to_be16(ETH_P_PAE);
f2129354	215
59bbb6f7	216	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	217	out:
667503dd JB	218	wdev_unlock(wdev);
667503dd	219	return err;
f2129354	220	}
f2129354 JB	221
	222	int cfg80211_mgd_wext_giwessid(struct net_device *dev,
	223	struct iw_request_info *info,
	224	struct iw_point data, char ssid)
	225	{
	226	struct wireless_dev *wdev = dev->ieee80211_ptr;
	227
	228	/* call only for station! */
	229	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	230	return -EINVAL;
	231
	232	data->flags = 0;
	233
667503dd	234	wdev_lock(wdev);
a42dd7ef	235	if (wdev->current_bss) {
9caf0364 JB	236	const u8 *ie;
	237
	238	rcu_read_lock();
	239	ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
	240	WLAN_EID_SSID);
a42dd7ef ZY	241	if (ie) {
	242	data->flags = 1;
	243	data->length = ie[1];
	244	memcpy(ssid, ie + 2, data->length);
	245	}
9caf0364	246	rcu_read_unlock();
a42dd7ef	247	} else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
f2129354 JB	248	data->flags = 1;
	249	data->length = wdev->wext.connect.ssid_len;
	250	memcpy(ssid, wdev->wext.connect.ssid, data->length);
33de4f9d	251	}
667503dd	252	wdev_unlock(wdev);
f2129354 JB	253
	254	return 0;
	255	}
f2129354 JB	256
	257	int cfg80211_mgd_wext_siwap(struct net_device *dev,
	258	struct iw_request_info *info,
	259	struct sockaddr ap_addr, char extra)
	260	{
	261	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	262	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	263	u8 *bssid = ap_addr->sa_data;
	264	int err;
	265
	266	/* call only for station! */
	267	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	268	return -EINVAL;
	269
	270	if (ap_addr->sa_family != ARPHRD_ETHER)
	271	return -EINVAL;
	272
	273	/* automatic mode */
	274	if (is_zero_ether_addr(bssid) \|\| is_broadcast_ether_addr(bssid))
	275	bssid = NULL;
	276
667503dd JB	277	wdev_lock(wdev);
667503dd JB	278
ceca7b71	279	if (wdev->conn) {
25e83c49 JB	280	err = 0;
	281	/* both automatic */
	282	if (!bssid && !wdev->wext.connect.bssid)
	283	goto out;
f2129354	284
25e83c49 JB	285	/* fixed already - and no change */
25e83c49 JB	286	if (wdev->wext.connect.bssid && bssid &&
ac422d3c	287	ether_addr_equal(bssid, wdev->wext.connect.bssid))
25e83c49	288	goto out;
f2129354	289
83739b03 JB	290	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	291	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	292	if (err)
667503dd	293	goto out;
f2129354 JB	294	}
	295
	296	if (bssid) {
	297	memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
	298	wdev->wext.connect.bssid = wdev->wext.bssid;
	299	} else
	300	wdev->wext.connect.bssid = NULL;
	301
59bbb6f7	302	err = cfg80211_mgd_wext_connect(rdev, wdev);
667503dd JB	303	out:
667503dd JB	304	wdev_unlock(wdev);
667503dd	305	return err;
f2129354	306	}
f2129354 JB	307
	308	int cfg80211_mgd_wext_giwap(struct net_device *dev,
	309	struct iw_request_info *info,
	310	struct sockaddr ap_addr, char extra)
	311	{
	312	struct wireless_dev *wdev = dev->ieee80211_ptr;
	313
	314	/* call only for station! */
	315	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	316	return -EINVAL;
	317
	318	ap_addr->sa_family = ARPHRD_ETHER;
	319
667503dd	320	wdev_lock(wdev);
f2129354	321	if (wdev->current_bss)
19957bb3	322	memcpy(ap_addr->sa_data, wdev->current_bss->pub.bssid, ETH_ALEN);
f2129354	323	else
d2beae10	324	eth_zero_addr(ap_addr->sa_data);
667503dd	325	wdev_unlock(wdev);
f2129354 JB	326
	327	return 0;
	328	}
f2129354 JB	329
	330	int cfg80211_wext_siwgenie(struct net_device *dev,
	331	struct iw_request_info *info,
	332	struct iw_point data, char extra)
	333	{
	334	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	335	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	336	u8 *ie = extra;
	337	int ie_len = data->length, err;
	338
	339	if (wdev->iftype != NL80211_IFTYPE_STATION)
	340	return -EOPNOTSUPP;
	341
	342	if (!ie_len)
	343	ie = NULL;
	344
667503dd JB	345	wdev_lock(wdev);
667503dd JB	346
f2129354	347	/* no change */
667503dd	348	err = 0;
f2129354 JB	349	if (wdev->wext.ie_len == ie_len &&
f2129354 JB	350	memcmp(wdev->wext.ie, ie, ie_len) == 0)
667503dd	351	goto out;
f2129354 JB	352
	353	if (ie_len) {
	354	ie = kmemdup(extra, ie_len, GFP_KERNEL);
667503dd JB	355	if (!ie) {
	356	err = -ENOMEM;
	357	goto out;
	358	}
f2129354 JB	359	} else
	360	ie = NULL;
	361
	362	kfree(wdev->wext.ie);
	363	wdev->wext.ie = ie;
	364	wdev->wext.ie_len = ie_len;
	365
ceca7b71	366	if (wdev->conn) {
83739b03 JB	367	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	368	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	369	if (err)
667503dd	370	goto out;
f2129354 JB	371	}
	372
	373	/* userspace better not think we'll reconnect */
667503dd JB	374	err = 0;
	375	out:
	376	wdev_unlock(wdev);
	377	return err;
f2129354	378	}
f2129354 JB	379
	380	int cfg80211_wext_siwmlme(struct net_device *dev,
	381	struct iw_request_info *info,
	382	struct iw_point data, char extra)
	383	{
	384	struct wireless_dev *wdev = dev->ieee80211_ptr;
	385	struct iw_mlme mlme = (struct iw_mlme )extra;
	386	struct cfg80211_registered_device *rdev;
667503dd	387	int err;
f2129354 JB	388
	389	if (!wdev)
	390	return -EOPNOTSUPP;
	391
f26cbf40	392	rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	393
	394	if (wdev->iftype != NL80211_IFTYPE_STATION)
	395	return -EINVAL;
	396
	397	if (mlme->addr.sa_family != ARPHRD_ETHER)
	398	return -EINVAL;
	399
667503dd	400	wdev_lock(wdev);
f2129354 JB	401	switch (mlme->cmd) {
	402	case IW_MLME_DEAUTH:
	403	case IW_MLME_DISASSOC:
83739b03	404	err = cfg80211_disconnect(rdev, dev, mlme->reason_code, true);
667503dd	405	break;
f2129354	406	default:
667503dd JB	407	err = -EOPNOTSUPP;
667503dd JB	408	break;
f2129354	409	}
667503dd JB	410	wdev_unlock(wdev);
	411
	412	return err;
f2129354	413	}