[net-next-2.6.git] / net / wireless / wext-compat.c

/*
 * cfg80211 - wext compat code
 *
 * This is temporary code until all wireless functionality is migrated
 * into cfg80211, when that happens all the exports here go away and
 * we directly assign the wireless handlers of wireless interfaces.
 *
 * Copyright 2008	Johannes Berg <johannes@sipsolutions.net>
 */

#include <linux/wireless.h>
#include <linux/nl80211.h>
#include <linux/if_arp.h>
#include <net/iw_handler.h>
#include <net/cfg80211.h>
#include "core.h"

int cfg80211_wext_giwname(struct net_device *dev,
			  struct iw_request_info *info,
			  char *name, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct ieee80211_supported_band *sband;
	bool is_ht = false, is_a = false, is_b = false, is_g = false;

	if (!wdev)
		return -EOPNOTSUPP;

	sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
	if (sband) {
		is_a = true;
		is_ht |= sband->ht_cap.ht_supported;
	}

	sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
	if (sband) {
		int i;
		/* Check for mandatory rates */
		for (i = 0; i < sband->n_bitrates; i++) {
			if (sband->bitrates[i].bitrate == 10)
				is_b = true;
			if (sband->bitrates[i].bitrate == 60)
				is_g = true;
		}
		is_ht |= sband->ht_cap.ht_supported;
	}

	strcpy(name, "IEEE 802.11");
	if (is_a)
		strcat(name, "a");
	if (is_b)
		strcat(name, "b");
	if (is_g)
		strcat(name, "g");
	if (is_ht)
		strcat(name, "n");

	return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);

int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
			  u32 *mode, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct cfg80211_registered_device *rdev;
	struct vif_params vifparams;
	enum nl80211_iftype type;
	int ret;

	if (!wdev)
		return -EOPNOTSUPP;

	rdev = wiphy_to_dev(wdev->wiphy);

	if (!rdev->ops->change_virtual_intf)
		return -EOPNOTSUPP;

	/* don't support changing VLANs, you just re-create them */
	if (wdev->iftype == NL80211_IFTYPE_AP_VLAN)
		return -EOPNOTSUPP;

	switch (*mode) {
	case IW_MODE_INFRA:
		type = NL80211_IFTYPE_STATION;
		break;
	case IW_MODE_ADHOC:
		type = NL80211_IFTYPE_ADHOC;
		break;
	case IW_MODE_REPEAT:
		type = NL80211_IFTYPE_WDS;
		break;
	case IW_MODE_MONITOR:
		type = NL80211_IFTYPE_MONITOR;
		break;
	default:
		return -EINVAL;
	}

	if (type == wdev->iftype)
		return 0;

	memset(&vifparams, 0, sizeof(vifparams));

	ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev->ifindex, type,
					     NULL, &vifparams);
	WARN_ON(!ret && wdev->iftype != type);

	return ret;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);

int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
			  u32 *mode, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;

	if (!wdev)
		return -EOPNOTSUPP;

	switch (wdev->iftype) {
	case NL80211_IFTYPE_AP:
		*mode = IW_MODE_MASTER;
		break;
	case NL80211_IFTYPE_STATION:
		*mode = IW_MODE_INFRA;
		break;
	case NL80211_IFTYPE_ADHOC:
		*mode = IW_MODE_ADHOC;
		break;
	case NL80211_IFTYPE_MONITOR:
		*mode = IW_MODE_MONITOR;
		break;
	case NL80211_IFTYPE_WDS:
		*mode = IW_MODE_REPEAT;
		break;
	case NL80211_IFTYPE_AP_VLAN:
		*mode = IW_MODE_SECOND;		/* FIXME */
		break;
	default:
		*mode = IW_MODE_AUTO;
		break;
	}
	return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);


int cfg80211_wext_giwrange(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_point *data, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct iw_range *range = (struct iw_range *) extra;
	enum ieee80211_band band;
	int c = 0;

	if (!wdev)
		return -EOPNOTSUPP;

	data->length = sizeof(struct iw_range);
	memset(range, 0, sizeof(struct iw_range));

	range->we_version_compiled = WIRELESS_EXT;
	range->we_version_source = 21;
	range->retry_capa = IW_RETRY_LIMIT;
	range->retry_flags = IW_RETRY_LIMIT;
	range->min_retry = 0;
	range->max_retry = 255;
	range->min_rts = 0;
	range->max_rts = 2347;
	range->min_frag = 256;
	range->max_frag = 2346;

	range->encoding_size[0] = 5;
	range->encoding_size[1] = 13;
	range->num_encoding_sizes = 2;
	range->max_encoding_tokens = 4;

	range->max_qual.updated = IW_QUAL_NOISE_INVALID;

	switch (wdev->wiphy->signal_type) {
	case CFG80211_SIGNAL_TYPE_NONE:
		break;
	case CFG80211_SIGNAL_TYPE_MBM:
		range->max_qual.level = -110;
		range->max_qual.qual = 70;
		range->avg_qual.qual = 35;
		range->max_qual.updated |= IW_QUAL_DBM;
		range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
		range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
		break;
	case CFG80211_SIGNAL_TYPE_UNSPEC:
		range->max_qual.level = 100;
		range->max_qual.qual = 100;
		range->avg_qual.qual = 50;
		range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
		range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
		break;
	}

	range->avg_qual.level = range->max_qual.level / 2;
	range->avg_qual.noise = range->max_qual.noise / 2;
	range->avg_qual.updated = range->max_qual.updated;

	range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
			  IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;

	for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
		int i;
		struct ieee80211_supported_band *sband;

		sband = wdev->wiphy->bands[band];

		if (!sband)
			continue;

		for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
			struct ieee80211_channel *chan = &sband->channels[i];

			if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
				range->freq[c].i =
					ieee80211_frequency_to_channel(
						chan->center_freq);
				range->freq[c].m = chan->center_freq;
				range->freq[c].e = 6;
				c++;
			}
		}
	}
	range->num_channels = c;
	range->num_frequency = c;

	IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);

	range->scan_capa |= IW_SCAN_CAPA_ESSID;

	return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);

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;
	union {
		struct cfg80211_disassoc_request disassoc;
		struct cfg80211_deauth_request deauth;
	} cmd;

	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;

	memset(&cmd, 0, sizeof(cmd));

	switch (mlme->cmd) {
	case IW_MLME_DEAUTH:
		if (!rdev->ops->deauth)
			return -EOPNOTSUPP;
		cmd.deauth.peer_addr = mlme->addr.sa_data;
		cmd.deauth.reason_code = mlme->reason_code;
		return rdev->ops->deauth(wdev->wiphy, dev, &cmd.deauth);
	case IW_MLME_DISASSOC:
		if (!rdev->ops->disassoc)
			return -EOPNOTSUPP;
		cmd.disassoc.peer_addr = mlme->addr.sa_data;
		cmd.disassoc.reason_code = mlme->reason_code;
		return rdev->ops->disassoc(wdev->wiphy, dev, &cmd.disassoc);
	default:
		return -EOPNOTSUPP;
	}
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);


/**
 * cfg80211_wext_freq - get wext frequency for non-"auto"
 * @wiphy: the wiphy
 * @freq: the wext freq encoding
 *
 * Returns a channel, %NULL for auto, or an ERR_PTR for errors!
 */
struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
					     struct iw_freq *freq)
{
	struct ieee80211_channel *chan;
	int f;

	/*
	 * Parse frequency - return NULL for auto and
	 * -EINVAL for impossible things.
	 */
	if (freq->e == 0) {
		if (freq->m < 0)
			return NULL;
		f = ieee80211_channel_to_frequency(freq->m);
	} else {
		int i, div = 1000000;
		for (i = 0; i < freq->e; i++)
			div /= 10;
		if (div <= 0)
			return ERR_PTR(-EINVAL);
		f = freq->m / div;
	}

	/*
	 * Look up channel struct and return -EINVAL when
	 * it cannot be found.
	 */
	chan = ieee80211_get_channel(wiphy, f);
	if (!chan)
		return ERR_PTR(-EINVAL);
	return chan;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_freq);

int cfg80211_wext_siwrts(struct net_device *dev,
			 struct iw_request_info *info,
			 struct iw_param *rts, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	u32 orts = wdev->wiphy->rts_threshold;
	int err;

	if (rts->disabled || !rts->fixed)
		wdev->wiphy->rts_threshold = (u32) -1;
	else if (rts->value < 0)
		return -EINVAL;
	else
		wdev->wiphy->rts_threshold = rts->value;

	err = rdev->ops->set_wiphy_params(wdev->wiphy,
					  WIPHY_PARAM_RTS_THRESHOLD);
	if (err)
		wdev->wiphy->rts_threshold = orts;

	return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);

int cfg80211_wext_giwrts(struct net_device *dev,
			 struct iw_request_info *info,
			 struct iw_param *rts, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;

	rts->value = wdev->wiphy->rts_threshold;
	rts->disabled = rts->value == (u32) -1;
	rts->fixed = 1;

	return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);

int cfg80211_wext_siwfrag(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_param *frag, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	u32 ofrag = wdev->wiphy->frag_threshold;
	int err;

	if (frag->disabled || !frag->fixed)
		wdev->wiphy->frag_threshold = (u32) -1;
	else if (frag->value < 256)
		return -EINVAL;
	else {
		/* Fragment length must be even, so strip LSB. */
		wdev->wiphy->frag_threshold = frag->value & ~0x1;
	}

	err = rdev->ops->set_wiphy_params(wdev->wiphy,
					  WIPHY_PARAM_FRAG_THRESHOLD);
	if (err)
		wdev->wiphy->frag_threshold = ofrag;

	return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);

int cfg80211_wext_giwfrag(struct net_device *dev,
			  struct iw_request_info *info,
			  struct iw_param *frag, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;

	frag->value = wdev->wiphy->frag_threshold;
	frag->disabled = frag->value == (u32) -1;
	frag->fixed = 1;

	return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);

int cfg80211_wext_siwretry(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_param *retry, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	u32 changed = 0;
	u8 olong = wdev->wiphy->retry_long;
	u8 oshort = wdev->wiphy->retry_short;
	int err;

	if (retry->disabled ||
	    (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
		return -EINVAL;

	if (retry->flags & IW_RETRY_LONG) {
		wdev->wiphy->retry_long = retry->value;
		changed |= WIPHY_PARAM_RETRY_LONG;
	} else if (retry->flags & IW_RETRY_SHORT) {
		wdev->wiphy->retry_short = retry->value;
		changed |= WIPHY_PARAM_RETRY_SHORT;
	} else {
		wdev->wiphy->retry_short = retry->value;
		wdev->wiphy->retry_long = retry->value;
		changed |= WIPHY_PARAM_RETRY_LONG;
		changed |= WIPHY_PARAM_RETRY_SHORT;
	}

	if (!changed)
		return 0;

	err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
	if (err) {
		wdev->wiphy->retry_short = oshort;
		wdev->wiphy->retry_long = olong;
	}

	return err;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);

int cfg80211_wext_giwretry(struct net_device *dev,
			   struct iw_request_info *info,
			   struct iw_param *retry, char *extra)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;

	retry->disabled = 0;

	if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
		/*
		 * First return short value, iwconfig will ask long value
		 * later if needed
		 */
		retry->flags |= IW_RETRY_LIMIT;
		retry->value = wdev->wiphy->retry_short;
		if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
			retry->flags |= IW_RETRY_LONG;

		return 0;
	}

	if (retry->flags & IW_RETRY_LONG) {
		retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
		retry->value = wdev->wiphy->retry_long;
	}

	return 0;
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
Commit	Line	Data
fee52678 JB	1	/*
	2	* cfg80211 - wext compat code
	3	*
	4	* This is temporary code until all wireless functionality is migrated
	5	* into cfg80211, when that happens all the exports here go away and
	6	* we directly assign the wireless handlers of wireless interfaces.
	7	*
	8	* Copyright 2008 Johannes Berg <johannes@sipsolutions.net>
	9	*/
	10
	11	#include <linux/wireless.h>
	12	#include <linux/nl80211.h>
691597cb	13	#include <linux/if_arp.h>
fee52678	14	#include <net/iw_handler.h>
fee52678 JB	15	#include <net/cfg80211.h>
	16	#include "core.h"
	17
	18	int cfg80211_wext_giwname(struct net_device *dev,
	19	struct iw_request_info *info,
	20	char name, char extra)
	21	{
	22	struct wireless_dev *wdev = dev->ieee80211_ptr;
	23	struct ieee80211_supported_band *sband;
	24	bool is_ht = false, is_a = false, is_b = false, is_g = false;
	25
	26	if (!wdev)
	27	return -EOPNOTSUPP;
	28
	29	sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
	30	if (sband) {
	31	is_a = true;
	32	is_ht \|= sband->ht_cap.ht_supported;
	33	}
	34
	35	sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
	36	if (sband) {
	37	int i;
	38	/* Check for mandatory rates */
	39	for (i = 0; i < sband->n_bitrates; i++) {
	40	if (sband->bitrates[i].bitrate == 10)
	41	is_b = true;
	42	if (sband->bitrates[i].bitrate == 60)
	43	is_g = true;
	44	}
	45	is_ht \|= sband->ht_cap.ht_supported;
	46	}
	47
	48	strcpy(name, "IEEE 802.11");
	49	if (is_a)
	50	strcat(name, "a");
	51	if (is_b)
	52	strcat(name, "b");
	53	if (is_g)
	54	strcat(name, "g");
	55	if (is_ht)
	56	strcat(name, "n");
	57
	58	return 0;
	59	}
ba44cb72	60	EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
e60c7744 JB	61
	62	int cfg80211_wext_siwmode(struct net_device dev, struct iw_request_info info,
	63	u32 mode, char extra)
	64	{
	65	struct wireless_dev *wdev = dev->ieee80211_ptr;
	66	struct cfg80211_registered_device *rdev;
	67	struct vif_params vifparams;
	68	enum nl80211_iftype type;
ac7f9cfa	69	int ret;
e60c7744 JB	70
	71	if (!wdev)
	72	return -EOPNOTSUPP;
	73
	74	rdev = wiphy_to_dev(wdev->wiphy);
	75
	76	if (!rdev->ops->change_virtual_intf)
	77	return -EOPNOTSUPP;
	78
	79	/* don't support changing VLANs, you just re-create them */
	80	if (wdev->iftype == NL80211_IFTYPE_AP_VLAN)
	81	return -EOPNOTSUPP;
	82
	83	switch (*mode) {
	84	case IW_MODE_INFRA:
	85	type = NL80211_IFTYPE_STATION;
	86	break;
	87	case IW_MODE_ADHOC:
	88	type = NL80211_IFTYPE_ADHOC;
	89	break;
	90	case IW_MODE_REPEAT:
	91	type = NL80211_IFTYPE_WDS;
	92	break;
	93	case IW_MODE_MONITOR:
	94	type = NL80211_IFTYPE_MONITOR;
	95	break;
	96	default:
	97	return -EINVAL;
	98	}
	99
ac7f9cfa JB	100	if (type == wdev->iftype)
	101	return 0;
	102
e60c7744 JB	103	memset(&vifparams, 0, sizeof(vifparams));
e60c7744 JB	104
ac7f9cfa JB	105	ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev->ifindex, type,
	106	NULL, &vifparams);
	107	WARN_ON(!ret && wdev->iftype != type);
	108
	109	return ret;
e60c7744	110	}
ba44cb72	111	EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
e60c7744 JB	112
	113	int cfg80211_wext_giwmode(struct net_device dev, struct iw_request_info info,
	114	u32 mode, char extra)
	115	{
	116	struct wireless_dev *wdev = dev->ieee80211_ptr;
	117
	118	if (!wdev)
	119	return -EOPNOTSUPP;
	120
	121	switch (wdev->iftype) {
	122	case NL80211_IFTYPE_AP:
	123	*mode = IW_MODE_MASTER;
	124	break;
	125	case NL80211_IFTYPE_STATION:
	126	*mode = IW_MODE_INFRA;
	127	break;
	128	case NL80211_IFTYPE_ADHOC:
	129	*mode = IW_MODE_ADHOC;
	130	break;
	131	case NL80211_IFTYPE_MONITOR:
	132	*mode = IW_MODE_MONITOR;
	133	break;
	134	case NL80211_IFTYPE_WDS:
	135	*mode = IW_MODE_REPEAT;
	136	break;
	137	case NL80211_IFTYPE_AP_VLAN:
	138	mode = IW_MODE_SECOND; / FIXME */
	139	break;
	140	default:
	141	*mode = IW_MODE_AUTO;
	142	break;
	143	}
	144	return 0;
	145	}
ba44cb72	146	EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
4aa188e1 JB	147
	148
	149	int cfg80211_wext_giwrange(struct net_device *dev,
	150	struct iw_request_info *info,
	151	struct iw_point data, char extra)
	152	{
	153	struct wireless_dev *wdev = dev->ieee80211_ptr;
	154	struct iw_range range = (struct iw_range ) extra;
	155	enum ieee80211_band band;
	156	int c = 0;
	157
	158	if (!wdev)
	159	return -EOPNOTSUPP;
	160
	161	data->length = sizeof(struct iw_range);
	162	memset(range, 0, sizeof(struct iw_range));
	163
	164	range->we_version_compiled = WIRELESS_EXT;
	165	range->we_version_source = 21;
	166	range->retry_capa = IW_RETRY_LIMIT;
	167	range->retry_flags = IW_RETRY_LIMIT;
	168	range->min_retry = 0;
	169	range->max_retry = 255;
	170	range->min_rts = 0;
	171	range->max_rts = 2347;
	172	range->min_frag = 256;
	173	range->max_frag = 2346;
	174
	175	range->encoding_size[0] = 5;
	176	range->encoding_size[1] = 13;
	177	range->num_encoding_sizes = 2;
	178	range->max_encoding_tokens = 4;
	179
	180	range->max_qual.updated = IW_QUAL_NOISE_INVALID;
	181
	182	switch (wdev->wiphy->signal_type) {
	183	case CFG80211_SIGNAL_TYPE_NONE:
	184	break;
	185	case CFG80211_SIGNAL_TYPE_MBM:
	186	range->max_qual.level = -110;
	187	range->max_qual.qual = 70;
	188	range->avg_qual.qual = 35;
	189	range->max_qual.updated \|= IW_QUAL_DBM;
	190	range->max_qual.updated \|= IW_QUAL_QUAL_UPDATED;
	191	range->max_qual.updated \|= IW_QUAL_LEVEL_UPDATED;
	192	break;
	193	case CFG80211_SIGNAL_TYPE_UNSPEC:
	194	range->max_qual.level = 100;
	195	range->max_qual.qual = 100;
	196	range->avg_qual.qual = 50;
	197	range->max_qual.updated \|= IW_QUAL_QUAL_UPDATED;
	198	range->max_qual.updated \|= IW_QUAL_LEVEL_UPDATED;
	199	break;
	200	}
	201
	202	range->avg_qual.level = range->max_qual.level / 2;
	203	range->avg_qual.noise = range->max_qual.noise / 2;
	204	range->avg_qual.updated = range->max_qual.updated;
	205
	206	range->enc_capa = IW_ENC_CAPA_WPA \| IW_ENC_CAPA_WPA2 \|
	207	IW_ENC_CAPA_CIPHER_TKIP \| IW_ENC_CAPA_CIPHER_CCMP;
	208
4aa188e1 JB	209	for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
	210	int i;
	211	struct ieee80211_supported_band *sband;
	212
	213	sband = wdev->wiphy->bands[band];
	214
	215	if (!sband)
	216	continue;
	217
	218	for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
	219	struct ieee80211_channel *chan = &sband->channels[i];
	220
	221	if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
	222	range->freq[c].i =
	223	ieee80211_frequency_to_channel(
	224	chan->center_freq);
	225	range->freq[c].m = chan->center_freq;
	226	range->freq[c].e = 6;
	227	c++;
	228	}
	229	}
	230	}
	231	range->num_channels = c;
	232	range->num_frequency = c;
	233
	234	IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
	235	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
	236	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
	237
	238	range->scan_capa \|= IW_SCAN_CAPA_ESSID;
	239
	240	return 0;
	241	}
ba44cb72	242	EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
691597cb JB	243
	244	int cfg80211_wext_siwmlme(struct net_device *dev,
	245	struct iw_request_info *info,
	246	struct iw_point data, char extra)
	247	{
	248	struct wireless_dev *wdev = dev->ieee80211_ptr;
	249	struct iw_mlme mlme = (struct iw_mlme )extra;
	250	struct cfg80211_registered_device *rdev;
	251	union {
	252	struct cfg80211_disassoc_request disassoc;
	253	struct cfg80211_deauth_request deauth;
	254	} cmd;
	255
	256	if (!wdev)
	257	return -EOPNOTSUPP;
	258
	259	rdev = wiphy_to_dev(wdev->wiphy);
	260
	261	if (wdev->iftype != NL80211_IFTYPE_STATION)
	262	return -EINVAL;
	263
	264	if (mlme->addr.sa_family != ARPHRD_ETHER)
	265	return -EINVAL;
	266
	267	memset(&cmd, 0, sizeof(cmd));
	268
	269	switch (mlme->cmd) {
	270	case IW_MLME_DEAUTH:
	271	if (!rdev->ops->deauth)
	272	return -EOPNOTSUPP;
	273	cmd.deauth.peer_addr = mlme->addr.sa_data;
	274	cmd.deauth.reason_code = mlme->reason_code;
	275	return rdev->ops->deauth(wdev->wiphy, dev, &cmd.deauth);
	276	case IW_MLME_DISASSOC:
	277	if (!rdev->ops->disassoc)
	278	return -EOPNOTSUPP;
	279	cmd.disassoc.peer_addr = mlme->addr.sa_data;
	280	cmd.disassoc.reason_code = mlme->reason_code;
	281	return rdev->ops->disassoc(wdev->wiphy, dev, &cmd.disassoc);
	282	default:
	283	return -EOPNOTSUPP;
	284	}
	285	}
ba44cb72	286	EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);
04a773ad JB	287
	288
	289	/**
	290	* cfg80211_wext_freq - get wext frequency for non-"auto"
	291	* @wiphy: the wiphy
	292	* @freq: the wext freq encoding
	293	*
	294	* Returns a channel, %NULL for auto, or an ERR_PTR for errors!
	295	*/
	296	struct ieee80211_channel cfg80211_wext_freq(struct wiphy wiphy,
	297	struct iw_freq *freq)
	298	{
0b258582 JB	299	struct ieee80211_channel *chan;
	300	int f;
	301
	302	/*
	303	* Parse frequency - return NULL for auto and
	304	* -EINVAL for impossible things.
	305	*/
04a773ad JB	306	if (freq->e == 0) {
	307	if (freq->m < 0)
	308	return NULL;
0b258582	309	f = ieee80211_channel_to_frequency(freq->m);
04a773ad JB	310	} else {
	311	int i, div = 1000000;
	312	for (i = 0; i < freq->e; i++)
	313	div /= 10;
0b258582	314	if (div <= 0)
04a773ad	315	return ERR_PTR(-EINVAL);
0b258582	316	f = freq->m / div;
04a773ad JB	317	}
04a773ad JB	318
0b258582 JB	319	/*
	320	* Look up channel struct and return -EINVAL when
	321	* it cannot be found.
	322	*/
	323	chan = ieee80211_get_channel(wiphy, f);
	324	if (!chan)
	325	return ERR_PTR(-EINVAL);
	326	return chan;
04a773ad	327	}
ba44cb72	328	EXPORT_SYMBOL_GPL(cfg80211_wext_freq);
b9a5f8ca JM	329
	330	int cfg80211_wext_siwrts(struct net_device *dev,
	331	struct iw_request_info *info,
	332	struct iw_param rts, char extra)
	333	{
	334	struct wireless_dev *wdev = dev->ieee80211_ptr;
	335	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	336	u32 orts = wdev->wiphy->rts_threshold;
	337	int err;
	338
	339	if (rts->disabled \|\| !rts->fixed)
	340	wdev->wiphy->rts_threshold = (u32) -1;
	341	else if (rts->value < 0)
	342	return -EINVAL;
	343	else
	344	wdev->wiphy->rts_threshold = rts->value;
	345
	346	err = rdev->ops->set_wiphy_params(wdev->wiphy,
	347	WIPHY_PARAM_RTS_THRESHOLD);
	348	if (err)
	349	wdev->wiphy->rts_threshold = orts;
	350
	351	return err;
	352	}
ba44cb72	353	EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
b9a5f8ca JM	354
	355	int cfg80211_wext_giwrts(struct net_device *dev,
	356	struct iw_request_info *info,
	357	struct iw_param rts, char extra)
	358	{
	359	struct wireless_dev *wdev = dev->ieee80211_ptr;
	360
	361	rts->value = wdev->wiphy->rts_threshold;
	362	rts->disabled = rts->value == (u32) -1;
	363	rts->fixed = 1;
	364
	365	return 0;
	366	}
ba44cb72	367	EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
b9a5f8ca JM	368
	369	int cfg80211_wext_siwfrag(struct net_device *dev,
	370	struct iw_request_info *info,
	371	struct iw_param frag, char extra)
	372	{
	373	struct wireless_dev *wdev = dev->ieee80211_ptr;
	374	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	375	u32 ofrag = wdev->wiphy->frag_threshold;
	376	int err;
	377
	378	if (frag->disabled \|\| !frag->fixed)
	379	wdev->wiphy->frag_threshold = (u32) -1;
	380	else if (frag->value < 256)
	381	return -EINVAL;
	382	else {
	383	/* Fragment length must be even, so strip LSB. */
	384	wdev->wiphy->frag_threshold = frag->value & ~0x1;
	385	}
	386
	387	err = rdev->ops->set_wiphy_params(wdev->wiphy,
	388	WIPHY_PARAM_FRAG_THRESHOLD);
	389	if (err)
	390	wdev->wiphy->frag_threshold = ofrag;
	391
	392	return err;
	393	}
ba44cb72	394	EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
b9a5f8ca JM	395
	396	int cfg80211_wext_giwfrag(struct net_device *dev,
	397	struct iw_request_info *info,
	398	struct iw_param frag, char extra)
	399	{
	400	struct wireless_dev *wdev = dev->ieee80211_ptr;
	401
	402	frag->value = wdev->wiphy->frag_threshold;
	403	frag->disabled = frag->value == (u32) -1;
	404	frag->fixed = 1;
	405
	406	return 0;
	407	}
ba44cb72	408	EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
b9a5f8ca JM	409
	410	int cfg80211_wext_siwretry(struct net_device *dev,
	411	struct iw_request_info *info,
	412	struct iw_param retry, char extra)
	413	{
	414	struct wireless_dev *wdev = dev->ieee80211_ptr;
	415	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
	416	u32 changed = 0;
	417	u8 olong = wdev->wiphy->retry_long;
	418	u8 oshort = wdev->wiphy->retry_short;
	419	int err;
	420
	421	if (retry->disabled \|\|
	422	(retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
	423	return -EINVAL;
	424
	425	if (retry->flags & IW_RETRY_LONG) {
	426	wdev->wiphy->retry_long = retry->value;
	427	changed \|= WIPHY_PARAM_RETRY_LONG;
	428	} else if (retry->flags & IW_RETRY_SHORT) {
	429	wdev->wiphy->retry_short = retry->value;
	430	changed \|= WIPHY_PARAM_RETRY_SHORT;
	431	} else {
	432	wdev->wiphy->retry_short = retry->value;
	433	wdev->wiphy->retry_long = retry->value;
	434	changed \|= WIPHY_PARAM_RETRY_LONG;
	435	changed \|= WIPHY_PARAM_RETRY_SHORT;
	436	}
	437
	438	if (!changed)
	439	return 0;
	440
	441	err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
	442	if (err) {
	443	wdev->wiphy->retry_short = oshort;
	444	wdev->wiphy->retry_long = olong;
	445	}
	446
	447	return err;
	448	}
ba44cb72	449	EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
b9a5f8ca JM	450
	451	int cfg80211_wext_giwretry(struct net_device *dev,
	452	struct iw_request_info *info,
	453	struct iw_param retry, char extra)
	454	{
	455	struct wireless_dev *wdev = dev->ieee80211_ptr;
	456
	457	retry->disabled = 0;
	458
	459	if (retry->flags == 0 \|\| (retry->flags & IW_RETRY_SHORT)) {
	460	/*
	461	* First return short value, iwconfig will ask long value
	462	* later if needed
	463	*/
	464	retry->flags \|= IW_RETRY_LIMIT;
	465	retry->value = wdev->wiphy->retry_short;
	466	if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
	467	retry->flags \|= IW_RETRY_LONG;
	468
	469	return 0;
	470	}
	471
	472	if (retry->flags & IW_RETRY_LONG) {
	473	retry->flags = IW_RETRY_LIMIT \| IW_RETRY_LONG;
	474	retry->value = wdev->wiphy->retry_long;
	475	}
	476
	477	return 0;
	478	}
ba44cb72	479	EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);