[deliverable/linux.git] / net / ieee80211 / softmac / ieee80211softmac_wx.c

/*
 * This file contains our _wx handlers. Make sure you EXPORT_SYMBOL_GPL them
 */

#include "ieee80211softmac_priv.h"

#include <net/iw_handler.h>


int
ieee80211softmac_wx_trigger_scan(struct net_device *net_dev,
				 struct iw_request_info *info,
				 union iwreq_data *data,
				 char *extra)
{
	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
	return ieee80211softmac_start_scan(sm);
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_trigger_scan);


int
ieee80211softmac_wx_get_scan_results(struct net_device *net_dev,
				     struct iw_request_info *info,
				     union iwreq_data *data,
				     char *extra)
{
	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
	return ieee80211_wx_get_scan(sm->ieee, info, data, extra);
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_scan_results);

int
ieee80211softmac_wx_set_essid(struct net_device *net_dev,
			      struct iw_request_info *info,
			      union iwreq_data *data,
			      char *extra)
{
	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
	int length = 0;
	unsigned long flags;
	
	spin_lock_irqsave(&sm->lock, flags);
	
	sm->associnfo.static_essid = 0;

	if (data->essid.flags && data->essid.length && extra /*required?*/) {
		length = min(data->essid.length - 1, IW_ESSID_MAX_SIZE);
		if (length) {
			memcpy(sm->associnfo.req_essid.data, extra, length);
			sm->associnfo.static_essid = 1;
		}
	}
	sm->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;

	/* set our requested ESSID length.
	 * If applicable, we have already copied the data in */
	sm->associnfo.req_essid.len = length;

	/* queue lower level code to do work (if necessary) */
	schedule_work(&sm->associnfo.work);

	spin_unlock_irqrestore(&sm->lock, flags);
	return 0;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_essid);

int
ieee80211softmac_wx_get_essid(struct net_device *net_dev,
			      struct iw_request_info *info,
			      union iwreq_data *data,
			      char *extra)
{
	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
	unsigned long flags;

	/* avoid getting inconsistent information */
	spin_lock_irqsave(&sm->lock, flags);
	/* If all fails, return ANY (empty) */
	data->essid.length = 0;
	data->essid.flags = 0;  /* active */
	
	/* If we have a statically configured ESSID then return it */
	if (sm->associnfo.static_essid) {
		data->essid.length = sm->associnfo.req_essid.len;
		data->essid.flags = 1;  /* active */
		memcpy(extra, sm->associnfo.req_essid.data, sm->associnfo.req_essid.len);
	}
	
	/* If we're associating/associated, return that */
	if (sm->associated || sm->associnfo.associating) {
		data->essid.length = sm->associnfo.associate_essid.len;
		data->essid.flags = 1;  /* active */
		memcpy(extra, sm->associnfo.associate_essid.data, sm->associnfo.associate_essid.len);
	}
	spin_unlock_irqrestore(&sm->lock, flags);
	return 0;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_essid);

int
ieee80211softmac_wx_set_rate(struct net_device *net_dev,
			     struct iw_request_info *info,
			     union iwreq_data *data,
			     char *extra)
{
	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
	struct ieee80211_device *ieee = mac->ieee;
	unsigned long flags;
	s32 in_rate = data->bitrate.value;
	u8 rate;
	int is_ofdm = 0;
	int err = -EINVAL;

	if (in_rate == -1) {
		/* automatic detect */
		if (ieee->modulation & IEEE80211_OFDM_MODULATION)
			in_rate = 54000000;
		else
			in_rate = 11000000;
	}

	switch (in_rate) {
	case 1000000:
		rate = IEEE80211_CCK_RATE_1MB;
		break;
	case 2000000:
		rate = IEEE80211_CCK_RATE_2MB;
		break;
	case 5500000:
		rate = IEEE80211_CCK_RATE_5MB;
		break;
	case 11000000:
		rate = IEEE80211_CCK_RATE_11MB;
		break;
	case 6000000:
		rate = IEEE80211_OFDM_RATE_6MB;
		is_ofdm = 1;
		break;
	case 9000000:
		rate = IEEE80211_OFDM_RATE_9MB;
		is_ofdm = 1;
		break;
	case 12000000:
		rate = IEEE80211_OFDM_RATE_12MB;
		is_ofdm = 1;
		break;
	case 18000000:
		rate = IEEE80211_OFDM_RATE_18MB;
		is_ofdm = 1;
		break;
	case 24000000:
		rate = IEEE80211_OFDM_RATE_24MB;
		is_ofdm = 1;
		break;
	case 36000000:
		rate = IEEE80211_OFDM_RATE_36MB;
		is_ofdm = 1;
		break;
	case 48000000:
		rate = IEEE80211_OFDM_RATE_48MB;
		is_ofdm = 1;
		break;
	case 54000000:
		rate = IEEE80211_OFDM_RATE_54MB;
		is_ofdm = 1;
		break;
	default:
		goto out;
	}

	spin_lock_irqsave(&mac->lock, flags);

	/* Check if correct modulation for this PHY. */
	if (is_ofdm && !(ieee->modulation & IEEE80211_OFDM_MODULATION))
		goto out_unlock;

	mac->txrates.default_rate = rate;
	mac->txrates.default_fallback = lower_rate(mac, rate);
	err = 0;

out_unlock:	
	spin_unlock_irqrestore(&mac->lock, flags);
out:
	return err;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_rate);

int
ieee80211softmac_wx_get_rate(struct net_device *net_dev,
			     struct iw_request_info *info,
			     union iwreq_data *data,
			     char *extra)
{
	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
	unsigned long flags;
	int err = -EINVAL;

	spin_lock_irqsave(&mac->lock, flags);
	switch (mac->txrates.default_rate) {
	case IEEE80211_CCK_RATE_1MB:
		data->bitrate.value = 1000000;
		break;
	case IEEE80211_CCK_RATE_2MB:
		data->bitrate.value = 2000000;
		break;
	case IEEE80211_CCK_RATE_5MB:
		data->bitrate.value = 5500000;
		break;
	case IEEE80211_CCK_RATE_11MB:
		data->bitrate.value = 11000000;
		break;
	case IEEE80211_OFDM_RATE_6MB:
		data->bitrate.value = 6000000;
		break;
	case IEEE80211_OFDM_RATE_9MB:
		data->bitrate.value = 9000000;
		break;
	case IEEE80211_OFDM_RATE_12MB:
		data->bitrate.value = 12000000;
		break;
	case IEEE80211_OFDM_RATE_18MB:
		data->bitrate.value = 18000000;
		break;
	case IEEE80211_OFDM_RATE_24MB:
		data->bitrate.value = 24000000;
		break;
	case IEEE80211_OFDM_RATE_36MB:
		data->bitrate.value = 36000000;
		break;
	case IEEE80211_OFDM_RATE_48MB:
		data->bitrate.value = 48000000;
		break;
	case IEEE80211_OFDM_RATE_54MB:
		data->bitrate.value = 54000000;
		break;
	default:
		assert(0);
		goto out_unlock;
	}
	err = 0;
out_unlock:
	spin_unlock_irqrestore(&mac->lock, flags);

	return err;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_rate);

int
ieee80211softmac_wx_get_wap(struct net_device *net_dev,
			    struct iw_request_info *info,
			    union iwreq_data *data,
			    char *extra)
{
	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
	int err = 0;
	unsigned long flags;

	spin_lock_irqsave(&mac->lock, flags);
	if (mac->associnfo.bssvalid)
		memcpy(data->ap_addr.sa_data, mac->associnfo.bssid, ETH_ALEN);
	else
		memset(data->ap_addr.sa_data, 0xff, ETH_ALEN);
	data->ap_addr.sa_family = ARPHRD_ETHER;
	spin_unlock_irqrestore(&mac->lock, flags);
	return err;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_wap);

int
ieee80211softmac_wx_set_wap(struct net_device *net_dev,
			    struct iw_request_info *info,
			    union iwreq_data *data,
			    char *extra)
{
	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
	static const unsigned char any[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
	static const unsigned char off[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
	unsigned long flags;

	/* sanity check */
	if (data->ap_addr.sa_family != ARPHRD_ETHER) {
		return -EINVAL;
	}

	spin_lock_irqsave(&mac->lock, flags);
	if (!memcmp(any, data->ap_addr.sa_data, ETH_ALEN) ||
	    !memcmp(off, data->ap_addr.sa_data, ETH_ALEN)) {
		schedule_work(&mac->associnfo.work);
		goto out;
        } else {
		if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) {
			if (mac->associnfo.associating || mac->associated) {
			/* bssid unchanged and associated or associating - just return */
				goto out;
			}
		} else {
			/* copy new value in data->ap_addr.sa_data to bssid */
			memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN);
		}	
		/* queue associate if new bssid or (old one again and not associated) */
		schedule_work(&mac->associnfo.work);
        }

out:
	spin_unlock_irqrestore(&mac->lock, flags);
	return 0;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_wap);

int
ieee80211softmac_wx_set_genie(struct net_device *dev,
			      struct iw_request_info *info,
			      union iwreq_data *wrqu,
			      char *extra)
{
	struct ieee80211softmac_device *mac = ieee80211_priv(dev);
	unsigned long flags;
	int err = 0;
	char *buf;
	int i;
	
	spin_lock_irqsave(&mac->lock, flags);
	/* bleh. shouldn't be locked for that kmalloc... */

	if (wrqu->data.length) {
		if ((wrqu->data.length < 2) || (extra[1]+2 != wrqu->data.length)) {
			/* this is an IE, so the length must be
			 * correct. Is it possible though that
			 * more than one IE is passed in?
			 */
			err = -EINVAL;
			goto out;
		}
		if (mac->wpa.IEbuflen <= wrqu->data.length) {
			buf = kmalloc(wrqu->data.length, GFP_ATOMIC);
			if (!buf) {
				err = -ENOMEM;
				goto out;
			}
			kfree(mac->wpa.IE);
			mac->wpa.IE = buf;
			mac->wpa.IEbuflen = wrqu->data.length;
		}
		memcpy(mac->wpa.IE, extra, wrqu->data.length);
		dprintk(KERN_INFO PFX "generic IE set to ");
		for (i=0;i<wrqu->data.length;i++)
			dprintk("%.2x", mac->wpa.IE[i]);
		dprintk("\n");
		mac->wpa.IElen = wrqu->data.length;
	} else {
		kfree(mac->wpa.IE);
		mac->wpa.IE = NULL;
		mac->wpa.IElen = 0;
		mac->wpa.IEbuflen = 0;
	}

 out:	
	spin_unlock_irqrestore(&mac->lock, flags);
	return err;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_genie);

int
ieee80211softmac_wx_get_genie(struct net_device *dev,
			      struct iw_request_info *info,
			      union iwreq_data *wrqu,
			      char *extra)
{
	struct ieee80211softmac_device *mac = ieee80211_priv(dev);
	unsigned long flags;
	int err = 0;
	int space = wrqu->data.length;
	
	spin_lock_irqsave(&mac->lock, flags);
	
	wrqu->data.length = 0;
	
	if (mac->wpa.IE && mac->wpa.IElen) {
		wrqu->data.length = mac->wpa.IElen;
		if (mac->wpa.IElen <= space)
			memcpy(extra, mac->wpa.IE, mac->wpa.IElen);
		else
			err = -E2BIG;
	}
	spin_unlock_irqrestore(&mac->lock, flags);
	return err;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_genie);
Commit	Line	Data
370121e5 JB	1	/*
	2	* This file contains our _wx handlers. Make sure you EXPORT_SYMBOL_GPL them
	3	*/
	4
	5	#include "ieee80211softmac_priv.h"
	6
	7	#include <net/iw_handler.h>
	8
	9
	10	int
	11	ieee80211softmac_wx_trigger_scan(struct net_device *net_dev,
	12	struct iw_request_info *info,
	13	union iwreq_data *data,
	14	char *extra)
	15	{
	16	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
	17	return ieee80211softmac_start_scan(sm);
	18	}
	19	EXPORT_SYMBOL_GPL(ieee80211softmac_wx_trigger_scan);
	20
	21
	22	int
	23	ieee80211softmac_wx_get_scan_results(struct net_device *net_dev,
	24	struct iw_request_info *info,
	25	union iwreq_data *data,
	26	char *extra)
	27	{
	28	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
	29	return ieee80211_wx_get_scan(sm->ieee, info, data, extra);
	30	}
	31	EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_scan_results);
	32
	33	int
	34	ieee80211softmac_wx_set_essid(struct net_device *net_dev,
	35	struct iw_request_info *info,
	36	union iwreq_data *data,
	37	char *extra)
	38	{
	39	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
	40	int length = 0;
	41	unsigned long flags;
	42
	43	spin_lock_irqsave(&sm->lock, flags);
	44
	45	sm->associnfo.static_essid = 0;
	46
	47	if (data->essid.flags && data->essid.length && extra /required?/) {
	48	length = min(data->essid.length - 1, IW_ESSID_MAX_SIZE);
	49	if (length) {
	50	memcpy(sm->associnfo.req_essid.data, extra, length);
	51	sm->associnfo.static_essid = 1;
	52	}
	53	}
	54	sm->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
	55
	56	/* set our requested ESSID length.
	57	* If applicable, we have already copied the data in */
	58	sm->associnfo.req_essid.len = length;
	59
	60	/* queue lower level code to do work (if necessary) */
5c4df6da	61	schedule_work(&sm->associnfo.work);
370121e5 JB	62
	63	spin_unlock_irqrestore(&sm->lock, flags);
	64	return 0;
	65	}
	66	EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_essid);
	67
	68	int
	69	ieee80211softmac_wx_get_essid(struct net_device *net_dev,
	70	struct iw_request_info *info,
	71	union iwreq_data *data,
	72	char *extra)
	73	{
	74	struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
	75	unsigned long flags;
	76
	77	/* avoid getting inconsistent information */
	78	spin_lock_irqsave(&sm->lock, flags);
	79	/* If all fails, return ANY (empty) */
	80	data->essid.length = 0;
	81	data->essid.flags = 0; /* active */
	82
	83	/* If we have a statically configured ESSID then return it */
	84	if (sm->associnfo.static_essid) {
	85	data->essid.length = sm->associnfo.req_essid.len;
	86	data->essid.flags = 1; /* active */
	87	memcpy(extra, sm->associnfo.req_essid.data, sm->associnfo.req_essid.len);
	88	}
	89
	90	/* If we're associating/associated, return that */
	91	if (sm->associated \|\| sm->associnfo.associating) {
	92	data->essid.length = sm->associnfo.associate_essid.len;
	93	data->essid.flags = 1; /* active */
	94	memcpy(extra, sm->associnfo.associate_essid.data, sm->associnfo.associate_essid.len);
	95	}
	96	spin_unlock_irqrestore(&sm->lock, flags);
	97	return 0;
	98	}
	99	EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_essid);
	100
	101	int
	102	ieee80211softmac_wx_set_rate(struct net_device *net_dev,
	103	struct iw_request_info *info,
	104	union iwreq_data *data,
	105	char *extra)
	106	{
	107	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
	108	struct ieee80211_device *ieee = mac->ieee;
	109	unsigned long flags;
	110	s32 in_rate = data->bitrate.value;
	111	u8 rate;
	112	int is_ofdm = 0;
	113	int err = -EINVAL;
	114
	115	if (in_rate == -1) {
	116	/* automatic detect */
	117	if (ieee->modulation & IEEE80211_OFDM_MODULATION)
	118	in_rate = 54000000;
	119	else
	120	in_rate = 11000000;
	121	}
	122
	123	switch (in_rate) {
	124	case 1000000:
	125	rate = IEEE80211_CCK_RATE_1MB;
126	break;
127	case 2000000:
128	rate = IEEE80211_CCK_RATE_2MB;
129	break;
130	case 5500000:
131	rate = IEEE80211_CCK_RATE_5MB;
132	break;
133	case 11000000:
134	rate = IEEE80211_CCK_RATE_11MB;
135	break;
136	case 6000000:
137	rate = IEEE80211_OFDM_RATE_6MB;
138	is_ofdm = 1;
139	break;
140	case 9000000:
141	rate = IEEE80211_OFDM_RATE_9MB;
142	is_ofdm = 1;
143	break;
144	case 12000000:
145	rate = IEEE80211_OFDM_RATE_12MB;
146	is_ofdm = 1;
147	break;
148	case 18000000:
149	rate = IEEE80211_OFDM_RATE_18MB;
150	is_ofdm = 1;
151	break;
152	case 24000000:
153	rate = IEEE80211_OFDM_RATE_24MB;
154	is_ofdm = 1;
155	break;
156	case 36000000:
157	rate = IEEE80211_OFDM_RATE_36MB;
158	is_ofdm = 1;
159	break;
160	case 48000000:
161	rate = IEEE80211_OFDM_RATE_48MB;
162	is_ofdm = 1;
163	break;
164	case 54000000:
165	rate = IEEE80211_OFDM_RATE_54MB;
166	is_ofdm = 1;
167	break;
168	default:
169	goto out;
170	}
171
172	spin_lock_irqsave(&mac->lock, flags);
173
174	/* Check if correct modulation for this PHY. */
175	if (is_ofdm && !(ieee->modulation & IEEE80211_OFDM_MODULATION))
176	goto out_unlock;
177
178	mac->txrates.default_rate = rate;
179	mac->txrates.default_fallback = lower_rate(mac, rate);
180	err = 0;
181
182	out_unlock:
183	spin_unlock_irqrestore(&mac->lock, flags);
184	out:
185	return err;
186	}
187	EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_rate);
188
189	int
190	ieee80211softmac_wx_get_rate(struct net_device *net_dev,
191	struct iw_request_info *info,
192	union iwreq_data *data,
193	char *extra)
194	{
195	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
196	unsigned long flags;
197	int err = -EINVAL;
198
199	spin_lock_irqsave(&mac->lock, flags);
200	switch (mac->txrates.default_rate) {
201	case IEEE80211_CCK_RATE_1MB:
202	data->bitrate.value = 1000000;
203	break;
204	case IEEE80211_CCK_RATE_2MB:
205	data->bitrate.value = 2000000;
206	break;
207	case IEEE80211_CCK_RATE_5MB:
208	data->bitrate.value = 5500000;
209	break;
210	case IEEE80211_CCK_RATE_11MB:
211	data->bitrate.value = 11000000;
212	break;
213	case IEEE80211_OFDM_RATE_6MB:
214	data->bitrate.value = 6000000;
215	break;
216	case IEEE80211_OFDM_RATE_9MB:
217	data->bitrate.value = 9000000;
218	break;
219	case IEEE80211_OFDM_RATE_12MB:
220	data->bitrate.value = 12000000;
221	break;
222	case IEEE80211_OFDM_RATE_18MB:
223	data->bitrate.value = 18000000;
224	break;
225	case IEEE80211_OFDM_RATE_24MB:
226	data->bitrate.value = 24000000;
227	break;
228	case IEEE80211_OFDM_RATE_36MB:
229	data->bitrate.value = 36000000;
230	break;
231	case IEEE80211_OFDM_RATE_48MB:
232	data->bitrate.value = 48000000;
233	break;
234	case IEEE80211_OFDM_RATE_54MB:
235	data->bitrate.value = 54000000;
236	break;
237	default:
238	assert(0);
239	goto out_unlock;
240	}
241	err = 0;
242	out_unlock:
243	spin_unlock_irqrestore(&mac->lock, flags);
244
245	return err;
246	}
247	EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_rate);
248
249	int
250	ieee80211softmac_wx_get_wap(struct net_device *net_dev,
251	struct iw_request_info *info,
252	union iwreq_data *data,
253	char *extra)
254	{
255	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
256	int err = 0;
257	unsigned long flags;
258
259	spin_lock_irqsave(&mac->lock, flags);
260	if (mac->associnfo.bssvalid)
261	memcpy(data->ap_addr.sa_data, mac->associnfo.bssid, ETH_ALEN);
262	else
263	memset(data->ap_addr.sa_data, 0xff, ETH_ALEN);
264	data->ap_addr.sa_family = ARPHRD_ETHER;
265	spin_unlock_irqrestore(&mac->lock, flags);
266	return err;
267	}
268	EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_wap);
269
270	int
271	ieee80211softmac_wx_set_wap(struct net_device *net_dev,
272	struct iw_request_info *info,
273	union iwreq_data *data,
274	char *extra)
275	{
276	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
277	static const unsigned char any[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
278	static const unsigned char off[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
279	unsigned long flags;
280
281	/* sanity check */
282	if (data->ap_addr.sa_family != ARPHRD_ETHER) {
283	return -EINVAL;
284	}
285
286	spin_lock_irqsave(&mac->lock, flags);
287	if (!memcmp(any, data->ap_addr.sa_data, ETH_ALEN) \|\|
288	!memcmp(off, data->ap_addr.sa_data, ETH_ALEN)) {
5c4df6da	289	schedule_work(&mac->associnfo.work);
370121e5 JB	290	goto out;
	291	} else {
	292	if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) {
	293	if (mac->associnfo.associating \|\| mac->associated) {
	294	/* bssid unchanged and associated or associating - just return */
	295	goto out;
	296	}
	297	} else {
	298	/* copy new value in data->ap_addr.sa_data to bssid */
	299	memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN);
	300	}
	301	/* queue associate if new bssid or (old one again and not associated) */
5c4df6da	302	schedule_work(&mac->associnfo.work);
370121e5 JB	303	}
	304
	305	out:
	306	spin_unlock_irqrestore(&mac->lock, flags);
	307	return 0;
	308	}
	309	EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_wap);
	310
	311	int
	312	ieee80211softmac_wx_set_genie(struct net_device *dev,
	313	struct iw_request_info *info,
	314	union iwreq_data *wrqu,
	315	char *extra)
	316	{
	317	struct ieee80211softmac_device *mac = ieee80211_priv(dev);
	318	unsigned long flags;
	319	int err = 0;
	320	char *buf;
	321	int i;
	322
	323	spin_lock_irqsave(&mac->lock, flags);
	324	/* bleh. shouldn't be locked for that kmalloc... */
	325
	326	if (wrqu->data.length) {
	327	if ((wrqu->data.length < 2) \|\| (extra[1]+2 != wrqu->data.length)) {
	328	/* this is an IE, so the length must be
	329	* correct. Is it possible though that
	330	* more than one IE is passed in?
	331	*/
	332	err = -EINVAL;
	333	goto out;
	334	}
	335	if (mac->wpa.IEbuflen <= wrqu->data.length) {
	336	buf = kmalloc(wrqu->data.length, GFP_ATOMIC);
	337	if (!buf) {
	338	err = -ENOMEM;
	339	goto out;
	340	}
	341	kfree(mac->wpa.IE);
	342	mac->wpa.IE = buf;
	343	mac->wpa.IEbuflen = wrqu->data.length;
	344	}
	345	memcpy(mac->wpa.IE, extra, wrqu->data.length);
	346	dprintk(KERN_INFO PFX "generic IE set to ");
	347	for (i=0;i<wrqu->data.length;i++)
	348	dprintk("%.2x", mac->wpa.IE[i]);
	349	dprintk("\n");
	350	mac->wpa.IElen = wrqu->data.length;
	351	} else {
	352	kfree(mac->wpa.IE);
	353	mac->wpa.IE = NULL;
	354	mac->wpa.IElen = 0;
	355	mac->wpa.IEbuflen = 0;
	356	}
	357
	358	out:
	359	spin_unlock_irqrestore(&mac->lock, flags);
	360	return err;
	361	}
	362	EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_genie);
	363
	364	int
	365	ieee80211softmac_wx_get_genie(struct net_device *dev,
	366	struct iw_request_info *info,
367	union iwreq_data *wrqu,
368	char *extra)
369	{
370	struct ieee80211softmac_device *mac = ieee80211_priv(dev);
371	unsigned long flags;
372	int err = 0;
373	int space = wrqu->data.length;
374
375	spin_lock_irqsave(&mac->lock, flags);
376
377	wrqu->data.length = 0;
378
379	if (mac->wpa.IE && mac->wpa.IElen) {
380	wrqu->data.length = mac->wpa.IElen;
381	if (mac->wpa.IElen <= space)
382	memcpy(extra, mac->wpa.IE, mac->wpa.IElen);
383	else
384	err = -E2BIG;
385	}
386	spin_unlock_irqrestore(&mac->lock, flags);
387	return err;
388	}
389	EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_genie);
390