iwmc3200wifi: Add new Intel Wireless Multicomm 802.11 driver

This driver supports Intel's full MAC wireless multicomm 802.11 hardware.
Although the hardware is a 802.11agn device, we currently only support
802.11ag, in managed and ad-hoc mode (no AP mode for now).

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 723 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwmc3200wifi/wext.c b/drivers/net/wireless/iwmc3200wifi/wext.c
new file mode 100644
index 00000000000..584c94d0f39
--- /dev/null
+++ b/drivers/net/wireless/iwmc3200wifi/wext.c
@@ -0,0 +1,723 @@
+/*
+ * Intel Wireless Multicomm 3200 WiFi driver
+ *
+ * Copyright (C) 2009 Intel Corporation <ilw@linux.intel.com>
+ * Samuel Ortiz <samuel.ortiz@intel.com>
+ * Zhu Yi <yi.zhu@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/wireless.h>
+#include <linux/if_arp.h>
+#include <linux/etherdevice.h>
+#include <net/cfg80211.h>
+#include <net/iw_handler.h>
+
+#include "iwm.h"
+#include "umac.h"
+#include "commands.h"
+#include "debug.h"
+
+static struct iw_statistics *iwm_get_wireless_stats(struct net_device *dev)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+	struct iw_statistics *wstats = &iwm->wstats;
+
+	if (!test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) {
+		memset(wstats, 0, sizeof(struct iw_statistics));
+		wstats->qual.updated = IW_QUAL_ALL_INVALID;
+	}
+
+	return wstats;
+}
+
+static int iwm_wext_siwfreq(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_freq *freq, char *extra)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+
+	if (freq->flags == IW_FREQ_AUTO)
+		return 0;
+
+	/* frequency/channel can only be set in IBSS mode */
+	if (iwm->conf.mode != UMAC_MODE_IBSS)
+		return -EOPNOTSUPP;
+
+	return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
+}
+
+static int iwm_wext_giwfreq(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_freq *freq, char *extra)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+
+	if (iwm->conf.mode == UMAC_MODE_IBSS)
+		return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
+
+	freq->e = 0;
+	freq->m = iwm->channel;
+
+	return 0;
+}
+
+static int iwm_wext_siwap(struct net_device *dev, struct iw_request_info *info,
+			  struct sockaddr *ap_addr, char *extra)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+
+	if (iwm->conf.mode == UMAC_MODE_IBSS)
+		return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
+
+	if (!test_bit(IWM_STATUS_READY, &iwm->status))
+		return -EIO;
+
+	if (is_zero_ether_addr(ap_addr->sa_data) ||
+	    is_broadcast_ether_addr(ap_addr->sa_data)) {
+		IWM_DBG_WEXT(iwm, DBG, "clear mandatory bssid %pM\n",
+			     iwm->umac_profile->bssid[0]);
+		memset(&iwm->umac_profile->bssid[0], 0, ETH_ALEN);
+		iwm->umac_profile->bss_num = 0;
+	} else {
+		IWM_DBG_WEXT(iwm, DBG, "add mandatory bssid %pM\n",
+			     ap_addr->sa_data);
+		memcpy(&iwm->umac_profile->bssid[0], ap_addr->sa_data,
+		       ETH_ALEN);
+		iwm->umac_profile->bss_num = 1;
+	}
+
+	if (iwm->umac_profile_active) {
+		if (!memcmp(&iwm->umac_profile->bssid[0], iwm->bssid, ETH_ALEN))
+			return 0;
+
+		iwm_invalidate_mlme_profile(iwm);
+	}
+
+	if (iwm->umac_profile->ssid.ssid_len)
+		return iwm_send_mlme_profile(iwm);
+
+	return 0;
+}
+
+static int iwm_wext_giwap(struct net_device *dev, struct iw_request_info *info,
+			  struct sockaddr *ap_addr, char *extra)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+
+	switch (iwm->conf.mode) {
+	case UMAC_MODE_IBSS:
+		return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
+	case UMAC_MODE_BSS:
+		if (test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) {
+			ap_addr->sa_family = ARPHRD_ETHER;
+			memcpy(&ap_addr->sa_data, iwm->bssid, ETH_ALEN);
+		} else
+			memset(&ap_addr->sa_data, 0, ETH_ALEN);
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int iwm_wext_siwessid(struct net_device *dev,
+			     struct iw_request_info *info,
+			     struct iw_point *data, char *ssid)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+	size_t len = data->length;
+	int ret;
+
+	if (iwm->conf.mode == UMAC_MODE_IBSS)
+		return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
+
+	if (!test_bit(IWM_STATUS_READY, &iwm->status))
+		return -EIO;
+
+	if (len > 0 && ssid[len - 1] == '\0')
+		len--;
+
+	if (iwm->umac_profile_active) {
+		if (iwm->umac_profile->ssid.ssid_len == len &&
+		    !memcmp(iwm->umac_profile->ssid.ssid, ssid, len))
+			return 0;
+
+		ret = iwm_invalidate_mlme_profile(iwm);
+		if (ret < 0) {
+			IWM_ERR(iwm, "Couldn't invalidate profile\n");
+			return ret;
+		}
+	}
+
+	iwm->umac_profile->ssid.ssid_len = len;
+	memcpy(iwm->umac_profile->ssid.ssid, ssid, len);
+
+	return iwm_send_mlme_profile(iwm);
+}
+
+static int iwm_wext_giwessid(struct net_device *dev,
+			     struct iw_request_info *info,
+			     struct iw_point *data, char *ssid)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+
+	if (iwm->conf.mode == UMAC_MODE_IBSS)
+		return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
+
+	if (!test_bit(IWM_STATUS_READY, &iwm->status))
+		return -EIO;
+
+	data->length = iwm->umac_profile->ssid.ssid_len;
+	if (data->length) {
+		memcpy(ssid, iwm->umac_profile->ssid.ssid, data->length);
+		data->flags = 1;
+	} else
+		data->flags = 0;
+
+	return 0;
+}
+
+static struct iwm_key *
+iwm_key_init(struct iwm_priv *iwm, u8 key_idx, bool in_use,
+	     struct iw_encode_ext *ext, u8 alg)
+{
+	struct iwm_key *key = &iwm->keys[key_idx];
+
+	memset(key, 0, sizeof(struct iwm_key));
+	memcpy(key->hdr.mac, ext->addr.sa_data, ETH_ALEN);
+	key->hdr.key_idx = key_idx;
+	if (is_broadcast_ether_addr(ext->addr.sa_data))
+		key->hdr.multicast = 1;
+
+	key->in_use = in_use;
+	key->flags = ext->ext_flags;
+	key->alg = alg;
+	key->key_len = ext->key_len;
+	memcpy(key->key, ext->key, ext->key_len);
+
+	return key;
+}
+
+static int iwm_wext_giwrate(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_param *rate, char *extra)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+
+	rate->value = iwm->rate * 1000000;
+
+	return 0;
+}
+
+static int iwm_wext_siwencode(struct net_device *dev,
+			      struct iw_request_info *info,
+			      struct iw_point *erq, char *key_buf)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+	struct iwm_key *uninitialized_var(key);
+	int idx, i, uninitialized_var(alg), remove = 0, ret;
+
+	IWM_DBG_WEXT(iwm, DBG, "key len: %d\n", erq->length);
+	IWM_DBG_WEXT(iwm, DBG, "flags: 0x%x\n", erq->flags);
+
+	if (!iwm->umac_profile) {
+		IWM_ERR(iwm, "UMAC profile not allocated yet\n");
+		return -ENODEV;
+	}
+
+	if (erq->length == WLAN_KEY_LEN_WEP40) {
+		alg = UMAC_CIPHER_TYPE_WEP_40;
+		iwm->umac_profile->sec.ucast_cipher = UMAC_CIPHER_TYPE_WEP_40;
+		iwm->umac_profile->sec.mcast_cipher = UMAC_CIPHER_TYPE_WEP_40;
+	} else if (erq->length == WLAN_KEY_LEN_WEP104) {
+		alg = UMAC_CIPHER_TYPE_WEP_104;
+		iwm->umac_profile->sec.ucast_cipher = UMAC_CIPHER_TYPE_WEP_104;
+		iwm->umac_profile->sec.mcast_cipher = UMAC_CIPHER_TYPE_WEP_104;
+	}
+
+	if (erq->flags & IW_ENCODE_RESTRICTED)
+		iwm->umac_profile->sec.auth_type = UMAC_AUTH_TYPE_LEGACY_PSK;
+	else
+		iwm->umac_profile->sec.auth_type = UMAC_AUTH_TYPE_OPEN;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (idx == 0) {
+		if (iwm->default_key)
+			for (i = 0; i < IWM_NUM_KEYS; i++) {
+				if (iwm->default_key == &iwm->keys[i]) {
+					idx = i;
+					break;
+				}
+			}
+		else
+			iwm->default_key = &iwm->keys[idx];
+	} else if (idx < 1 || idx > 4) {
+		return -EINVAL;
+	} else
+		idx--;
+
+	if (erq->flags & IW_ENCODE_DISABLED)
+		remove = 1;
+	else if (erq->length == 0) {
+		if (!iwm->keys[idx].in_use)
+			return -EINVAL;
+		iwm->default_key = &iwm->keys[idx];
+	}
+
+	if (erq->length) {
+		key = &iwm->keys[idx];
+		memset(key, 0, sizeof(struct iwm_key));
+		memset(key->hdr.mac, 0xff, ETH_ALEN);
+		key->hdr.key_idx = idx;
+		key->hdr.multicast = 1;
+		key->in_use = !remove;
+		key->alg = alg;
+		key->key_len = erq->length;
+		memcpy(key->key, key_buf, erq->length);
+
+		IWM_DBG_WEXT(iwm, DBG, "Setting key %d, default: %d\n",
+			     idx, !!iwm->default_key);
+	}
+
+	if (remove) {
+		if ((erq->flags & IW_ENCODE_NOKEY) || (erq->length == 0)) {
+			int j;
+			for (j = 0; j < IWM_NUM_KEYS; j++)
+				if (iwm->keys[j].in_use) {
+					struct iwm_key *k = &iwm->keys[j];
+
+					k->in_use = 0;
+					ret = iwm_set_key(iwm, remove, 0, k);
+					if (ret < 0)
+						return ret;
+				}
+
+			iwm->umac_profile->sec.ucast_cipher =
+							UMAC_CIPHER_TYPE_NONE;
+			iwm->umac_profile->sec.mcast_cipher =
+							UMAC_CIPHER_TYPE_NONE;
+			iwm->umac_profile->sec.auth_type =
+							UMAC_AUTH_TYPE_OPEN;
+
+			return 0;
+		} else {
+			key->in_use = 0;
+			return iwm_set_key(iwm, remove, 0, key);
+		}
+	}
+
+	/*
+	 * If we havent set a profile yet, we cant set keys.
+	 * Keys will be pushed after we're associated.
+	 */
+	if (!iwm->umac_profile_active)
+		return 0;
+
+	/*
+	 * If there is a current active profile, but no
+	 * default key, it's not worth trying to associate again.
+	 */
+	if (!iwm->default_key)
+		return 0;
+
+	/*
+	 * Here we have an active profile, but a key setting changed.
+	 * We thus have to invalidate the current profile, and push the
+	 * new one. Keys will be pushed when association takes place.
+	 */
+	ret = iwm_invalidate_mlme_profile(iwm);
+	if (ret < 0) {
+		IWM_ERR(iwm, "Couldn't invalidate profile\n");
+		return ret;
+	}
+
+	return iwm_send_mlme_profile(iwm);
+}
+
+static int iwm_wext_giwencode(struct net_device *dev,
+			      struct iw_request_info *info,
+			      struct iw_point *erq, char *key)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+	int idx, i;
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+	if (idx < 1 || idx > 4) {
+		idx = -1;
+		if (!iwm->default_key) {
+			erq->length = 0;
+			erq->flags |= IW_ENCODE_NOKEY;
+			return 0;
+		} else
+			for (i = 0; i < IWM_NUM_KEYS; i++) {
+				if (iwm->default_key == &iwm->keys[i]) {
+					idx = i;
+					break;
+				}
+			}
+		if (idx < 0)
+			return -EINVAL;
+	} else
+		idx--;
+
+	erq->flags = idx + 1;
+
+	if (!iwm->keys[idx].in_use) {
+		erq->length = 0;
+		erq->flags |= IW_ENCODE_DISABLED;
+		return 0;
+	}
+
+	memcpy(key, iwm->keys[idx].key,
+	       min_t(int, erq->length, iwm->keys[idx].key_len));
+	erq->length = iwm->keys[idx].key_len;
+	erq->flags |= IW_ENCODE_ENABLED;
+
+	if (iwm->umac_profile->mode == UMAC_MODE_BSS) {
+		switch (iwm->umac_profile->sec.auth_type) {
+		case UMAC_AUTH_TYPE_OPEN:
+			erq->flags |= IW_ENCODE_OPEN;
+			break;
+		default:
+			erq->flags |= IW_ENCODE_RESTRICTED;
+			break;
+		}
+	}
+
+	return 0;
+}
+
+static int iwm_set_wpa_version(struct iwm_priv *iwm, u8 wpa_version)
+{
+	if (wpa_version & IW_AUTH_WPA_VERSION_WPA2)
+		iwm->umac_profile->sec.flags = UMAC_SEC_FLG_RSNA_ON_MSK;
+	else if (wpa_version & IW_AUTH_WPA_VERSION_WPA)
+		iwm->umac_profile->sec.flags = UMAC_SEC_FLG_WPA_ON_MSK;
+	else
+		iwm->umac_profile->sec.flags = UMAC_SEC_FLG_LEGACY_PROFILE;
+
+	return 0;
+}
+
+static int iwm_wext_siwpower(struct net_device *dev,
+			     struct iw_request_info *info,
+			     struct iw_param *wrq, char *extra)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+	u32 power_index;
+
+	if (wrq->disabled) {
+		power_index = IWM_POWER_INDEX_MIN;
+		goto set;
+	} else
+		power_index = IWM_POWER_INDEX_DEFAULT;
+
+	switch (wrq->flags & IW_POWER_MODE) {
+	case IW_POWER_ON:
+	case IW_POWER_MODE:
+	case IW_POWER_ALL_R:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+ set:
+	if (power_index == iwm->conf.power_index)
+		return 0;
+
+	iwm->conf.power_index = power_index;
+
+	return iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
+				       CFG_POWER_INDEX, iwm->conf.power_index);
+}
+
+static int iwm_wext_giwpower(struct net_device *dev,
+			     struct iw_request_info *info,
+			     union iwreq_data *wrqu, char *extra)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+
+	wrqu->power.disabled = (iwm->conf.power_index == IWM_POWER_INDEX_MIN);
+
+	return 0;
+}
+
+static int iwm_set_key_mgt(struct iwm_priv *iwm, u8 key_mgt)
+{
+	u8 *auth_type = &iwm->umac_profile->sec.auth_type;
+
+	if (key_mgt == IW_AUTH_KEY_MGMT_802_1X)
+		*auth_type = UMAC_AUTH_TYPE_8021X;
+	else if (key_mgt == IW_AUTH_KEY_MGMT_PSK) {
+		if (iwm->umac_profile->sec.flags &
+		    (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK))
+			*auth_type = UMAC_AUTH_TYPE_RSNA_PSK;
+		else
+			*auth_type = UMAC_AUTH_TYPE_LEGACY_PSK;
+	} else {
+		IWM_ERR(iwm, "Invalid key mgt: 0x%x\n", key_mgt);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int iwm_set_cipher(struct iwm_priv *iwm, u8 cipher, u8 ucast)
+{
+	u8 *profile_cipher = ucast ? &iwm->umac_profile->sec.ucast_cipher :
+		&iwm->umac_profile->sec.mcast_cipher;
+
+	switch (cipher) {
+	case IW_AUTH_CIPHER_NONE:
+		*profile_cipher = UMAC_CIPHER_TYPE_NONE;
+		break;
+	case IW_AUTH_CIPHER_WEP40:
+		*profile_cipher = UMAC_CIPHER_TYPE_WEP_40;
+		break;
+	case IW_AUTH_CIPHER_TKIP:
+		*profile_cipher = UMAC_CIPHER_TYPE_TKIP;
+		break;
+	case IW_AUTH_CIPHER_CCMP:
+		*profile_cipher = UMAC_CIPHER_TYPE_CCMP;
+		break;
+	case IW_AUTH_CIPHER_WEP104:
+		*profile_cipher = UMAC_CIPHER_TYPE_WEP_104;
+		break;
+	default:
+		IWM_ERR(iwm, "Unsupported cipher: 0x%x\n", cipher);
+		return -ENOTSUPP;
+	}
+
+	return 0;
+}
+
+static int iwm_set_auth_alg(struct iwm_priv *iwm, u8 auth_alg)
+{
+	u8 *auth_type = &iwm->umac_profile->sec.auth_type;
+
+	switch (auth_alg) {
+	case IW_AUTH_ALG_OPEN_SYSTEM:
+		*auth_type = UMAC_AUTH_TYPE_OPEN;
+		break;
+	case IW_AUTH_ALG_SHARED_KEY:
+		if (iwm->umac_profile->sec.flags &
+		    (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) {
+			if (*auth_type == UMAC_AUTH_TYPE_8021X)
+				return -EINVAL;
+			*auth_type = UMAC_AUTH_TYPE_RSNA_PSK;
+		} else {
+			*auth_type = UMAC_AUTH_TYPE_LEGACY_PSK;
+		}
+		break;
+	case IW_AUTH_ALG_LEAP:
+	default:
+		IWM_ERR(iwm, "Unsupported auth alg: 0x%x\n", auth_alg);
+		return -ENOTSUPP;
+	}
+
+	return 0;
+}
+
+static int iwm_wext_siwauth(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_param *data, char *extra)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+	int ret;
+
+	if ((data->flags) &
+	    (IW_AUTH_WPA_VERSION | IW_AUTH_KEY_MGMT |
+	     IW_AUTH_WPA_ENABLED | IW_AUTH_80211_AUTH_ALG)) {
+		/* We need to invalidate the current profile */
+		if (iwm->umac_profile_active) {
+			ret = iwm_invalidate_mlme_profile(iwm);
+			if (ret < 0) {
+				IWM_ERR(iwm, "Couldn't invalidate profile\n");
+				return ret;
+			}
+		}
+	}
+
+	switch (data->flags & IW_AUTH_INDEX) {
+	case IW_AUTH_WPA_VERSION:
+		return iwm_set_wpa_version(iwm, data->value);
+		break;
+	case IW_AUTH_CIPHER_PAIRWISE:
+		return iwm_set_cipher(iwm, data->value, 1);
+		break;
+	case IW_AUTH_CIPHER_GROUP:
+		return iwm_set_cipher(iwm, data->value, 0);
+		break;
+	case IW_AUTH_KEY_MGMT:
+		return iwm_set_key_mgt(iwm, data->value);
+		break;
+	case IW_AUTH_80211_AUTH_ALG:
+		return iwm_set_auth_alg(iwm, data->value);
+		break;
+	default:
+		return -ENOTSUPP;
+	}
+
+	return 0;
+}
+
+static int iwm_wext_giwauth(struct net_device *dev,
+			    struct iw_request_info *info,
+			    struct iw_param *data, char *extra)
+{
+	return 0;
+}
+
+static int iwm_wext_siwencodeext(struct net_device *dev,
+				 struct iw_request_info *info,
+				 struct iw_point *erq, char *extra)
+{
+	struct iwm_priv *iwm = ndev_to_iwm(dev);
+	struct iwm_key *key;
+	struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
+	int uninitialized_var(alg), idx, i, remove = 0;
+
+	IWM_DBG_WEXT(iwm, DBG, "alg: 0x%x\n", ext->alg);
+	IWM_DBG_WEXT(iwm, DBG, "key len: %d\n", ext->key_len);
+	IWM_DBG_WEXT(iwm, DBG, "ext_flags: 0x%x\n", ext->ext_flags);
+	IWM_DBG_WEXT(iwm, DBG, "flags: 0x%x\n", erq->flags);
+	IWM_DBG_WEXT(iwm, DBG, "length: 0x%x\n", erq->length);
+
+	switch (ext->alg) {
+	case IW_ENCODE_ALG_NONE:
+		remove = 1;
+		break;
+	case IW_ENCODE_ALG_WEP:
+		if (ext->key_len == WLAN_KEY_LEN_WEP40)
+			alg = UMAC_CIPHER_TYPE_WEP_40;
+		else if (ext->key_len == WLAN_KEY_LEN_WEP104)
+			alg = UMAC_CIPHER_TYPE_WEP_104;
+		else {
+			IWM_ERR(iwm, "Invalid key length: %d\n", ext->key_len);
+			return -EINVAL;
+		}
+
+		break;
+	case IW_ENCODE_ALG_TKIP:
+		alg = UMAC_CIPHER_TYPE_TKIP;
+		break;
+	case IW_ENCODE_ALG_CCMP:
+		alg = UMAC_CIPHER_TYPE_CCMP;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	idx = erq->flags & IW_ENCODE_INDEX;
+
+	if (idx == 0) {
+		if (iwm->default_key)
+			for (i = 0; i < IWM_NUM_KEYS; i++) {
+				if (iwm->default_key == &iwm->keys[i]) {
+					idx = i;
+					break;
+				}
+			}
+	} else if (idx < 1 || idx > 4) {
+		return -EINVAL;
+	} else
+		idx--;
+
+	if (erq->flags & IW_ENCODE_DISABLED)
+		remove = 1;
+	else if ((erq->length == 0) ||
+		 (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
+		iwm->default_key = &iwm->keys[idx];
+		if (iwm->umac_profile_active && ext->alg == IW_ENCODE_ALG_WEP)
+			return iwm_set_tx_key(iwm, idx);
+	}
+
+	key = iwm_key_init(iwm, idx, !remove, ext, alg);
+
+	return iwm_set_key(iwm, remove, !iwm->default_key, key);
+}
+
+static const iw_handler iwm_handlers[] =
+{
+	(iw_handler) NULL,				/* SIOCSIWCOMMIT */
+	(iw_handler) cfg80211_wext_giwname,		/* SIOCGIWNAME */
+	(iw_handler) NULL,				/* SIOCSIWNWID */
+	(iw_handler) NULL,				/* SIOCGIWNWID */
+	(iw_handler) iwm_wext_siwfreq,			/* SIOCSIWFREQ */
+	(iw_handler) iwm_wext_giwfreq,			/* SIOCGIWFREQ */
+	(iw_handler) cfg80211_wext_siwmode,		/* SIOCSIWMODE */
+	(iw_handler) cfg80211_wext_giwmode,		/* SIOCGIWMODE */
+	(iw_handler) NULL,				/* SIOCSIWSENS */
+	(iw_handler) NULL,				/* SIOCGIWSENS */
+	(iw_handler) NULL /* not used */,		/* SIOCSIWRANGE */
+	(iw_handler) cfg80211_wext_giwrange,		/* SIOCGIWRANGE */
+	(iw_handler) NULL /* not used */,		/* SIOCSIWPRIV */
+	(iw_handler) NULL /* kernel code */,		/* SIOCGIWPRIV */
+	(iw_handler) NULL /* not used */,		/* SIOCSIWSTATS */
+	(iw_handler) NULL /* kernel code */,		/* SIOCGIWSTATS */
+	(iw_handler) NULL,				/* SIOCSIWSPY */
+	(iw_handler) NULL,				/* SIOCGIWSPY */
+	(iw_handler) NULL,				/* SIOCSIWTHRSPY */
+	(iw_handler) NULL,				/* SIOCGIWTHRSPY */
+	(iw_handler) iwm_wext_siwap,	                /* SIOCSIWAP */
+	(iw_handler) iwm_wext_giwap,			/* SIOCGIWAP */
+	(iw_handler) NULL,			        /* SIOCSIWMLME */
+	(iw_handler) NULL,				/* SIOCGIWAPLIST */
+	(iw_handler) cfg80211_wext_siwscan,		/* SIOCSIWSCAN */
+	(iw_handler) cfg80211_wext_giwscan,		/* SIOCGIWSCAN */
+	(iw_handler) iwm_wext_siwessid,			/* SIOCSIWESSID */
+	(iw_handler) iwm_wext_giwessid,			/* SIOCGIWESSID */
+	(iw_handler) NULL,				/* SIOCSIWNICKN */
+	(iw_handler) NULL,				/* SIOCGIWNICKN */
+	(iw_handler) NULL,				/* -- hole -- */
+	(iw_handler) NULL,				/* -- hole -- */
+	(iw_handler) NULL,				/* SIOCSIWRATE */
+	(iw_handler) iwm_wext_giwrate,			/* SIOCGIWRATE */
+	(iw_handler) cfg80211_wext_siwrts,		/* SIOCSIWRTS */
+	(iw_handler) cfg80211_wext_giwrts,		/* SIOCGIWRTS */
+	(iw_handler) cfg80211_wext_siwfrag,	        /* SIOCSIWFRAG */
+	(iw_handler) cfg80211_wext_giwfrag,		/* SIOCGIWFRAG */
+	(iw_handler) NULL,				/* SIOCSIWTXPOW */
+	(iw_handler) NULL,				/* SIOCGIWTXPOW */
+	(iw_handler) NULL,				/* SIOCSIWRETRY */
+	(iw_handler) NULL,				/* SIOCGIWRETRY */
+	(iw_handler) iwm_wext_siwencode,		/* SIOCSIWENCODE */
+	(iw_handler) iwm_wext_giwencode,		/* SIOCGIWENCODE */
+	(iw_handler) iwm_wext_siwpower,			/* SIOCSIWPOWER */
+	(iw_handler) iwm_wext_giwpower,			/* SIOCGIWPOWER */
+	(iw_handler) NULL,				/* -- hole -- */
+	(iw_handler) NULL,				/* -- hole -- */
+	(iw_handler) NULL,                              /* SIOCSIWGENIE */
+	(iw_handler) NULL,				/* SIOCGIWGENIE */
+	(iw_handler) iwm_wext_siwauth,			/* SIOCSIWAUTH */
+	(iw_handler) iwm_wext_giwauth,			/* SIOCGIWAUTH */
+	(iw_handler) iwm_wext_siwencodeext,	        /* SIOCSIWENCODEEXT */
+	(iw_handler) NULL,				/* SIOCGIWENCODEEXT */
+	(iw_handler) NULL,				/* SIOCSIWPMKSA */
+	(iw_handler) NULL,				/* -- hole -- */
+};
+
+const struct iw_handler_def iwm_iw_handler_def = {
+	.num_standard	= ARRAY_SIZE(iwm_handlers),
+	.standard	= (iw_handler *) iwm_handlers,
+	.get_wireless_stats = iwm_get_wireless_stats,
+};
+