[linux-block.git] / net / wireless / wext-sme.c

// SPDX-License-Identifier: GPL-2.0
/*
 * cfg80211 wext compat for managed mode.
 *
 * Copyright 2009	Johannes Berg <johannes@sipsolutions.net>
 * Copyright (C) 2009, 2020-2023 Intel Corporation
 */

#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();
	lockdep_assert_wiphy(wdev->wiphy);

	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 < 4; 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_sensitive(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;
	}

	if (wdev->conn) {
		bool event = true;

		if (wdev->wext.connect.channel == chan)
			return 0;

		/* 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)
			return err;
	}

	wdev->wext.connect.channel = chan;
	return cfg80211_mgd_wext_connect(rdev, wdev);
}

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;

	if (wdev->valid_links)
		return -EOPNOTSUPP;

	if (wdev->links[0].client.current_bss)
		chan = wdev->links[0].client.current_bss->pub.channel;
	else if (wdev->wext.connect.channel)
		chan = wdev->wext.connect.channel;

	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--;

	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)
			return 0;

		/* 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)
			return err;
	}

	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);

	return cfg80211_mgd_wext_connect(rdev, wdev);
}

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;
	int ret = 0;

	/* call only for station! */
	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
		return -EINVAL;

	if (wdev->valid_links)
		return -EINVAL;

	data->flags = 0;

	if (wdev->links[0].client.current_bss) {
		const struct element *ssid_elem;

		rcu_read_lock();
		ssid_elem = ieee80211_bss_get_elem(
				&wdev->links[0].client.current_bss->pub,
				WLAN_EID_SSID);
		if (ssid_elem) {
			data->flags = 1;
			data->length = ssid_elem->datalen;
			if (data->length > IW_ESSID_MAX_SIZE)
				ret = -EINVAL;
			else
				memcpy(ssid, ssid_elem->data, 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);
	}

	return ret;
}

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;

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

		/* fixed already - and no change */
		if (wdev->wext.connect.bssid && bssid &&
		    ether_addr_equal(bssid, wdev->wext.connect.bssid))
			return 0;

		err = cfg80211_disconnect(rdev, dev,
					  WLAN_REASON_DEAUTH_LEAVING, false);
		if (err)
			return err;
	}

	if (bssid) {
		memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
		wdev->wext.connect.bssid = wdev->wext.bssid;
	} else
		wdev->wext.connect.bssid = NULL;

	return cfg80211_mgd_wext_connect(rdev, wdev);
}

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;

	if (wdev->valid_links)
		return -EOPNOTSUPP;

	if (wdev->links[0].client.current_bss)
		memcpy(ap_addr->sa_data,
		       wdev->links[0].client.current_bss->pub.bssid,
		       ETH_ALEN);
	else
		eth_zero_addr(ap_addr->sa_data);

	return 0;
}

int cfg80211_wext_siwgenie(struct net_device *dev,
			   struct iw_request_info *info,
			   union iwreq_data *wrqu, char *extra)
{
	struct iw_point *data = &wrqu->data;
	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;

	wiphy_lock(wdev->wiphy);

	/* 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:
	wiphy_unlock(wdev->wiphy);
	return err;
}

int cfg80211_wext_siwmlme(struct net_device *dev,
			  struct iw_request_info *info,
			  union iwreq_data *wrqu, 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;

	wiphy_lock(&rdev->wiphy);
	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;
	}
	wiphy_unlock(&rdev->wiphy);

	return err;
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
f2129354 JB	2	/*
	3	* cfg80211 wext compat for managed mode.
	4	*
	5	* Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
7d2d0ff4	6	* Copyright (C) 2009, 2020-2023 Intel Corporation
f2129354 JB	7	*/
f2129354 JB	8
bc3b2d7f	9	#include <linux/export.h>
f2129354 JB	10	#include <linux/etherdevice.h>
f2129354 JB	11	#include <linux/if_arp.h>
5a0e3ad6	12	#include <linux/slab.h>
f2129354	13	#include <net/cfg80211.h>
262eb9b2	14	#include <net/cfg80211-wext.h>
0e82ffe3	15	#include "wext-compat.h"
f2129354 JB	16	#include "nl80211.h"
f2129354 JB	17
fffd0934 JB	18	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	19	struct wireless_dev *wdev)
f2129354	20	{
fffd0934	21	struct cfg80211_cached_keys *ck = NULL;
f401a6f7	22	const u8 *prev_bssid = NULL;
fffd0934	23	int err, i;
f2129354	24
73fb08e2	25	ASSERT_RTNL();
076fc877	26	lockdep_assert_wiphy(wdev->wiphy);
667503dd	27
f2129354 JB	28	if (!netif_running(wdev->netdev))
	29	return 0;
	30
	31	wdev->wext.connect.ie = wdev->wext.ie;
	32	wdev->wext.connect.ie_len = wdev->wext.ie_len;
f2129354	33
4486ea98 BS	34	/* Use default background scan period */
	35	wdev->wext.connect.bg_scan_period = -1;
	36
fffd0934 JB	37	if (wdev->wext.keys) {
fffd0934 JB	38	wdev->wext.keys->def = wdev->wext.default_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
f1c1f17a	46	if (wdev->wext.keys && wdev->wext.keys->def != -1) {
fffd0934 JB	47	ck = kmemdup(wdev->wext.keys, sizeof(*ck), GFP_KERNEL);
	48	if (!ck)
	49	return -ENOMEM;
585b6e13	50	for (i = 0; i < 4; i++)
fffd0934 JB	51	ck->params[i].key = ck->data[i];
fffd0934 JB	52	}
f401a6f7 JB	53
	54	if (wdev->wext.prev_bssid_valid)
	55	prev_bssid = wdev->wext.prev_bssid;
	56
83739b03 JB	57	err = cfg80211_connect(rdev, wdev->netdev,
83739b03 JB	58	&wdev->wext.connect, ck, prev_bssid);
fffd0934	59	if (err)
453431a5	60	kfree_sensitive(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	{
f2129354 JB	69	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	70	struct cfg80211_registered_device *rdev = wiphy_to_rdev(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
96998e3a	78	freq = cfg80211_wext_freq(wextfreq);
59bbb6f7 JB	79	if (freq < 0)
59bbb6f7 JB	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
ceca7b71	90	if (wdev->conn) {
f2129354	91	bool event = true;
25e83c49	92
076fc877 JB	93	if (wdev->wext.connect.channel == chan)
076fc877 JB	94	return 0;
25e83c49	95
f2129354 JB	96	/* if SSID set, we'll try right again, avoid event */
	97	if (wdev->wext.connect.ssid_len)
	98	event = false;
83739b03 JB	99	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	100	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	101	if (err)
076fc877	102	return err;
f2129354 JB	103	}
	104
	105	wdev->wext.connect.channel = chan;
076fc877	106	return cfg80211_mgd_wext_connect(rdev, wdev);
f2129354	107	}
f2129354 JB	108
	109	int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
	110	struct iw_request_info *info,
	111	struct iw_freq freq, char extra)
	112	{
	113	struct wireless_dev *wdev = dev->ieee80211_ptr;
	114	struct ieee80211_channel *chan = NULL;
	115
	116	/* call only for station! */
	117	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	118	return -EINVAL;
	119
7b0a0e3c JB	120	if (wdev->valid_links)
	121	return -EOPNOTSUPP;
	122
7b0a0e3c JB	123	if (wdev->links[0].client.current_bss)
7b0a0e3c JB	124	chan = wdev->links[0].client.current_bss->pub.channel;
f2129354 JB	125	else if (wdev->wext.connect.channel)
	126	chan = wdev->wext.connect.channel;
	127
	128	if (chan) {
	129	freq->m = chan->center_freq;
	130	freq->e = 6;
	131	return 0;
	132	}
	133
	134	/* no channel if not joining */
	135	return -EINVAL;
	136	}
f2129354 JB	137
	138	int cfg80211_mgd_wext_siwessid(struct net_device *dev,
	139	struct iw_request_info *info,
	140	struct iw_point data, char ssid)
	141	{
	142	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	143	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	144	size_t len = data->length;
	145	int err;
	146
	147	/* call only for station! */
	148	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	149	return -EINVAL;
	150
	151	if (!data->flags)
	152	len = 0;
	153
	154	/* iwconfig uses nul termination in SSID.. */
	155	if (len > 0 && ssid[len - 1] == '\0')
	156	len--;
	157
ceca7b71	158	if (wdev->conn) {
f2129354	159	bool event = true;
25e83c49 JB	160
	161	if (wdev->wext.connect.ssid && len &&
	162	len == wdev->wext.connect.ssid_len &&
	163	memcmp(wdev->wext.connect.ssid, ssid, len) == 0)
076fc877	164	return 0;
25e83c49	165
f2129354 JB	166	/* if SSID set now, we'll try to connect, avoid event */
	167	if (len)
	168	event = false;
83739b03 JB	169	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	170	WLAN_REASON_DEAUTH_LEAVING, event);
f2129354	171	if (err)
076fc877	172	return err;
f2129354 JB	173	}
f2129354 JB	174
f401a6f7	175	wdev->wext.prev_bssid_valid = false;
f2129354 JB	176	wdev->wext.connect.ssid = wdev->wext.ssid;
	177	memcpy(wdev->wext.ssid, ssid, len);
	178	wdev->wext.connect.ssid_len = len;
	179
	180	wdev->wext.connect.crypto.control_port = false;
c0692b8f JB	181	wdev->wext.connect.crypto.control_port_ethertype =
c0692b8f JB	182	cpu_to_be16(ETH_P_PAE);
f2129354	183
076fc877	184	return cfg80211_mgd_wext_connect(rdev, wdev);
f2129354	185	}
f2129354 JB	186
	187	int cfg80211_mgd_wext_giwessid(struct net_device *dev,
	188	struct iw_request_info *info,
	189	struct iw_point data, char ssid)
	190	{
	191	struct wireless_dev *wdev = dev->ieee80211_ptr;
4ac2813c	192	int ret = 0;
f2129354 JB	193
	194	/* call only for station! */
	195	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	196	return -EINVAL;
	197
7b0a0e3c JB	198	if (wdev->valid_links)
	199	return -EINVAL;
	200
f2129354 JB	201	data->flags = 0;
f2129354 JB	202
7b0a0e3c	203	if (wdev->links[0].client.current_bss) {
fb8b53ac	204	const struct element *ssid_elem;
9caf0364 JB	205
9caf0364 JB	206	rcu_read_lock();
7b0a0e3c JB	207	ssid_elem = ieee80211_bss_get_elem(
	208	&wdev->links[0].client.current_bss->pub,
	209	WLAN_EID_SSID);
fb8b53ac	210	if (ssid_elem) {
a42dd7ef	211	data->flags = 1;
fb8b53ac	212	data->length = ssid_elem->datalen;
4ac2813c WD	213	if (data->length > IW_ESSID_MAX_SIZE)
	214	ret = -EINVAL;
	215	else
fb8b53ac	216	memcpy(ssid, ssid_elem->data, data->length);
a42dd7ef	217	}
9caf0364	218	rcu_read_unlock();
a42dd7ef	219	} else if (wdev->wext.connect.ssid && wdev->wext.connect.ssid_len) {
f2129354 JB	220	data->flags = 1;
	221	data->length = wdev->wext.connect.ssid_len;
	222	memcpy(ssid, wdev->wext.connect.ssid, data->length);
33de4f9d	223	}
f2129354	224
4ac2813c	225	return ret;
f2129354	226	}
f2129354 JB	227
	228	int cfg80211_mgd_wext_siwap(struct net_device *dev,
	229	struct iw_request_info *info,
	230	struct sockaddr ap_addr, char extra)
	231	{
	232	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	233	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	234	u8 *bssid = ap_addr->sa_data;
	235	int err;
	236
	237	/* call only for station! */
	238	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
	239	return -EINVAL;
	240
	241	if (ap_addr->sa_family != ARPHRD_ETHER)
	242	return -EINVAL;
	243
	244	/* automatic mode */
	245	if (is_zero_ether_addr(bssid) \|\| is_broadcast_ether_addr(bssid))
	246	bssid = NULL;
	247
ceca7b71	248	if (wdev->conn) {
25e83c49 JB	249	/* both automatic */
25e83c49 JB	250	if (!bssid && !wdev->wext.connect.bssid)
076fc877	251	return 0;
f2129354	252
25e83c49 JB	253	/* fixed already - and no change */
25e83c49 JB	254	if (wdev->wext.connect.bssid && bssid &&
ac422d3c	255	ether_addr_equal(bssid, wdev->wext.connect.bssid))
076fc877	256	return 0;
f2129354	257
83739b03 JB	258	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	259	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	260	if (err)
076fc877	261	return err;
f2129354 JB	262	}
	263
	264	if (bssid) {
	265	memcpy(wdev->wext.bssid, bssid, ETH_ALEN);
	266	wdev->wext.connect.bssid = wdev->wext.bssid;
	267	} else
	268	wdev->wext.connect.bssid = NULL;
	269
076fc877	270	return cfg80211_mgd_wext_connect(rdev, wdev);
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
076fc877	285	if (wdev->valid_links)
7b0a0e3c	286	return -EOPNOTSUPP;
076fc877	287
7b0a0e3c JB	288	if (wdev->links[0].client.current_bss)
	289	memcpy(ap_addr->sa_data,
	290	wdev->links[0].client.current_bss->pub.bssid,
	291	ETH_ALEN);
f2129354	292	else
d2beae10	293	eth_zero_addr(ap_addr->sa_data);
f2129354 JB	294
	295	return 0;
	296	}
f2129354 JB	297
	298	int cfg80211_wext_siwgenie(struct net_device *dev,
	299	struct iw_request_info *info,
02ae6a70	300	union iwreq_data wrqu, char extra)
f2129354	301	{
02ae6a70	302	struct iw_point *data = &wrqu->data;
f2129354	303	struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40	304	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	305	u8 *ie = extra;
	306	int ie_len = data->length, err;
	307
	308	if (wdev->iftype != NL80211_IFTYPE_STATION)
	309	return -EOPNOTSUPP;
	310
	311	if (!ie_len)
	312	ie = NULL;
	313
7d2d0ff4	314	wiphy_lock(wdev->wiphy);
667503dd	315
f2129354	316	/* no change */
667503dd	317	err = 0;
f2129354 JB	318	if (wdev->wext.ie_len == ie_len &&
f2129354 JB	319	memcmp(wdev->wext.ie, ie, ie_len) == 0)
667503dd	320	goto out;
f2129354 JB	321
	322	if (ie_len) {
	323	ie = kmemdup(extra, ie_len, GFP_KERNEL);
667503dd JB	324	if (!ie) {
	325	err = -ENOMEM;
	326	goto out;
	327	}
f2129354 JB	328	} else
	329	ie = NULL;
	330
	331	kfree(wdev->wext.ie);
	332	wdev->wext.ie = ie;
	333	wdev->wext.ie_len = ie_len;
	334
ceca7b71	335	if (wdev->conn) {
83739b03 JB	336	err = cfg80211_disconnect(rdev, dev,
83739b03 JB	337	WLAN_REASON_DEAUTH_LEAVING, false);
f2129354	338	if (err)
667503dd	339	goto out;
f2129354 JB	340	}
	341
	342	/* userspace better not think we'll reconnect */
667503dd JB	343	err = 0;
667503dd JB	344	out:
7d2d0ff4	345	wiphy_unlock(wdev->wiphy);
667503dd	346	return err;
f2129354	347	}
f2129354 JB	348
	349	int cfg80211_wext_siwmlme(struct net_device *dev,
	350	struct iw_request_info *info,
02ae6a70	351	union iwreq_data wrqu, char extra)
f2129354 JB	352	{
	353	struct wireless_dev *wdev = dev->ieee80211_ptr;
	354	struct iw_mlme mlme = (struct iw_mlme )extra;
	355	struct cfg80211_registered_device *rdev;
667503dd	356	int err;
f2129354 JB	357
	358	if (!wdev)
	359	return -EOPNOTSUPP;
	360
f26cbf40	361	rdev = wiphy_to_rdev(wdev->wiphy);
f2129354 JB	362
	363	if (wdev->iftype != NL80211_IFTYPE_STATION)
	364	return -EINVAL;
	365
	366	if (mlme->addr.sa_family != ARPHRD_ETHER)
	367	return -EINVAL;
	368
a05829a7	369	wiphy_lock(&rdev->wiphy);
f2129354 JB	370	switch (mlme->cmd) {
	371	case IW_MLME_DEAUTH:
	372	case IW_MLME_DISASSOC:
83739b03	373	err = cfg80211_disconnect(rdev, dev, mlme->reason_code, true);
667503dd	374	break;
f2129354	375	default:
667503dd JB	376	err = -EOPNOTSUPP;
667503dd JB	377	break;
f2129354	378	}
a05829a7	379	wiphy_unlock(&rdev->wiphy);
667503dd JB	380
667503dd JB	381	return err;
f2129354	382	}