Subject: Re: [PATCH 14/14] Add new driver 'rndis_wlan' for wireless RNDIS devices.

From: David Brownell <[email-masked]>
Date: Sun, 27 Jan 2008 08:43:14 -0800

On Friday 25 January 2008, Jussi Kivilinna wrote:
> New driver for wireless RNDIS devices. So far only known chip that uses
> wireless RNDIS is Broadcom 4320. Driver detects all RNDIS devices that 
> have RNDIS wireless physical medium. At least following devices are 
> detected:
> 
>   Buffalo WLI-U2-KG125S
>   U.S. Robotics USR5421
>   Belkin F5D7051
>   Linksys WUSB54GSv2
>   Linksys WUSB54GSC
>   Asus WL169gE
>   Eminent EM4045
>   BT Voyager 1055
>   Linksys WUSB54GSv1
>   U.S. Robotics USR5420
>   BUFFALO WLI-USB-G54
> 
> Signed-off-by: Jussi Kivilinna <[email-masked]>

OK by me, but I don't need to be in the loop on this one.
So I'm not really reviewing this code.  Not that I know
much about this wireless stack!

> ---
> 
>  MAINTAINERS                       |    6 
>  drivers/net/wireless/Kconfig      |   28 
>  drivers/net/wireless/Makefile     |    2 
>  drivers/net/wireless/rndis_wlan.c | 2757 +++++++++++++++++++++++++++++++++++++
>  4 files changed, 2793 insertions(+), 0 deletions(-)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 2340cfb..d6773c2 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -4031,6 +4031,12 @@ L:	[email-masked]
>  W:	http://www.linux-projects.org
>  S:	Maintained
>  
> +USB WIRELESS RNDIS DRIVER (rndis_wlan)
> +P:	Jussi Kivilinna
> +M:	[email-masked]
> +L:	[email-masked]
> +S:	Maintained
> +
>  USB ZC0301 DRIVER
>  P:	Luca Risolia
>  M:	[email-masked]
> diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
> index 2c08c0a..962663c 100644
> --- a/drivers/net/wireless/Kconfig
> +++ b/drivers/net/wireless/Kconfig
> @@ -545,6 +545,34 @@ config USB_ZD1201
>  	  To compile this driver as a module, choose M here: the
>  	  module will be called zd1201.
>  
> +config USB_NET_RNDIS_WLAN
> +	tristate "Wireless RNDIS USB support"
> +	depends on USB && WLAN_80211 && EXPERIMENTAL
> +	select USB_USBNET
> +	select USB_NET_CDCETHER
> +	select USB_NET_RNDIS_HOST
> +	select WIRELESS_EXT
> +	---help---
> +	  This is a driver for wireless RNDIS devices.
> +	  These are USB based adapters found in devices such as:
> +
> +	  Buffalo WLI-U2-KG125S
> +	  U.S. Robotics USR5421
> +	  Belkin F5D7051
> +	  Linksys WUSB54GSv2
> +	  Linksys WUSB54GSC
> +	  Asus WL169gE
> +	  Eminent EM4045
> +	  BT Voyager 1055
> +	  Linksys WUSB54GSv1
> +	  U.S. Robotics USR5420
> +	  BUFFALO WLI-USB-G54
> +
> +	  All of these devices are based on Broadcom 4320 chip which is the
> +	  only wireless RNDIS chip known to date.
> +
> +	  If you choose to build a module, it'll be called rndis_wlan.
> +
>  config RTL8187
>  	tristate "Realtek 8187 USB support"
>  	depends on MAC80211 && USB && WLAN_80211 && EXPERIMENTAL
> diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
> index 6f32b53..e3e521e 100644
> --- a/drivers/net/wireless/Makefile
> +++ b/drivers/net/wireless/Makefile
> @@ -44,6 +44,8 @@ obj-$(CONFIG_ZD1211RW)		+= zd1211rw/
>  obj-$(CONFIG_PCMCIA_RAYCS)	+= ray_cs.o
>  obj-$(CONFIG_PCMCIA_WL3501)	+= wl3501_cs.o
>  
> +obj-$(CONFIG_USB_NET_RNDIS_WLAN)	+= rndis_wlan.o
> +
>  obj-$(CONFIG_USB_ZD1201)	+= zd1201.o
>  obj-$(CONFIG_LIBERTAS)		+= libertas/
>  
> diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
> new file mode 100644
> index 0000000..d3ecf89
> --- /dev/null
> +++ b/drivers/net/wireless/rndis_wlan.c
> @@ -0,0 +1,2757 @@
> +/*
> + * Driver for RNDIS based wireless USB devices.
> + *
> + * Copyright (C) 2007 by Bjorge Dijkstra <[email-masked]>
> + * Copyright (C) 2008 by Jussi Kivilinna <[email-masked]>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
> + *
> + *  Portions of this file are based on NDISwrapper project,
> + *  Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
> + *  http://ndiswrapper.sourceforge.net/
> + */
> +
> +// #define	DEBUG			// error path messages, extra info
> +// #define	VERBOSE			// more; success messages
> +
> +#include <linux/module.h>
> +#include <linux/init.h>
> +#include <linux/netdevice.h>
> +#include <linux/etherdevice.h>
> +#include <linux/ethtool.h>
> +#include <linux/workqueue.h>
> +#include <linux/mutex.h>
> +#include <linux/mii.h>
> +#include <linux/usb.h>
> +#include <linux/usb/cdc.h>
> +#include <linux/wireless.h>
> +#include <linux/if_arp.h>
> +#include <linux/ctype.h>
> +#include <linux/spinlock.h>
> +#include <net/iw_handler.h>
> +#include <net/ieee80211.h>
> +#include <linux/usb/usbnet.h>
> +#include <linux/usb/rndis_host.h>
> +
> +
> +/* NOTE: All these are settings for Broadcom chipset */
> +static char modparam_country[4] = "EU";
> +module_param_string(country, modparam_country, 4, 0444);
> +MODULE_PARM_DESC(country, "Country code (ISO 3166-1 alpha-2), default: EU");
> +
> +static int modparam_frameburst = 1;
> +module_param_named(frameburst, modparam_frameburst, int, 0444);
> +MODULE_PARM_DESC(frameburst, "enable frame bursting (default: on)");
> +
> +static int modparam_afterburner = 0;
> +module_param_named(afterburner, modparam_afterburner, int, 0444);
> +MODULE_PARM_DESC(afterburner,
> +	"enable afterburner aka '125 High Speed Mode' (default: off)");
> +
> +static int modparam_power_save = 0;
> +module_param_named(power_save, modparam_power_save, int, 0444);
> +MODULE_PARM_DESC(power_save,
> +	"set power save mode: 0=off, 1=on, 2=fast (default: off)");
> +
> +static int modparam_power_output = 3;
> +module_param_named(power_output, modparam_power_output, int, 0444);
> +MODULE_PARM_DESC(power_output,
> +	"set power output: 0=25%, 1=50%, 2=75%, 3=100% (default: 100%)");
> +
> +static int modparam_roamtrigger = -70;
> +module_param_named(roamtrigger, modparam_roamtrigger, int, 0444);
> +MODULE_PARM_DESC(roamtrigger,
> +	"set roaming dBm trigger: -80=optimize for distance, "
> +				"-60=bandwidth (default: -70)");
> +
> +static int modparam_roamdelta = 1;
> +module_param_named(roamdelta, modparam_roamdelta, int, 0444);
> +MODULE_PARM_DESC(roamdelta,
> +	"set roaming tendency: 0=aggressive, 1=moderate, "
> +				"2=conservative (default: moderate)");
> +
> +static int modparam_workaround_interval = 500;
> +module_param_named(workaround_interval, modparam_workaround_interval,
> +							int, 0444);
> +MODULE_PARM_DESC(workaround_interval,
> +	"set stall workaround interval in msecs (default: 500)");
> +
> +
> +/* various RNDIS OID defs */
> +#define OID_GEN_LINK_SPEED			ccpu2(0x00010107)
> +#define OID_GEN_RNDIS_CONFIG_PARAMETER		ccpu2(0x0001021b)
> +
> +#define OID_GEN_XMIT_OK				ccpu2(0x00020101)
> +#define OID_GEN_RCV_OK				ccpu2(0x00020102)
> +#define OID_GEN_XMIT_ERROR			ccpu2(0x00020103)
> +#define OID_GEN_RCV_ERROR			ccpu2(0x00020104)
> +#define OID_GEN_RCV_NO_BUFFER			ccpu2(0x00020105)
> +
> +#define OID_802_3_PERMANENT_ADDRESS		ccpu2(0x01010101)
> +#define OID_802_3_CURRENT_ADDRESS		ccpu2(0x01010102)
> +#define OID_802_3_MULTICAST_LIST		ccpu2(0x01010103)
> +#define OID_802_3_MAXIMUM_LIST_SIZE		ccpu2(0x01010104)
> +
> +#define OID_802_11_BSSID			ccpu2(0x0d010101)
> +#define OID_802_11_SSID				ccpu2(0x0d010102)
> +#define OID_802_11_INFRASTRUCTURE_MODE		ccpu2(0x0d010108)
> +#define OID_802_11_ADD_WEP			ccpu2(0x0d010113)
> +#define OID_802_11_REMOVE_WEP			ccpu2(0x0d010114)
> +#define OID_802_11_DISASSOCIATE			ccpu2(0x0d010115)
> +#define OID_802_11_AUTHENTICATION_MODE		ccpu2(0x0d010118)
> +#define OID_802_11_PRIVACY_FILTER		ccpu2(0x0d010119)
> +#define OID_802_11_BSSID_LIST_SCAN		ccpu2(0x0d01011a)
> +#define OID_802_11_ENCRYPTION_STATUS		ccpu2(0x0d01011b)
> +#define OID_802_11_ADD_KEY			ccpu2(0x0d01011d)
> +#define OID_802_11_REMOVE_KEY			ccpu2(0x0d01011e)
> +#define OID_802_11_PMKID			ccpu2(0x0d010123)
> +#define OID_802_11_NETWORK_TYPES_SUPPORTED	ccpu2(0x0d010203)
> +#define OID_802_11_NETWORK_TYPE_IN_USE		ccpu2(0x0d010204)
> +#define OID_802_11_TX_POWER_LEVEL		ccpu2(0x0d010205)
> +#define OID_802_11_RSSI				ccpu2(0x0d010206)
> +#define OID_802_11_RSSI_TRIGGER			ccpu2(0x0d010207)
> +#define OID_802_11_FRAGMENTATION_THRESHOLD	ccpu2(0x0d010209)
> +#define OID_802_11_RTS_THRESHOLD		ccpu2(0x0d01020a)
> +#define OID_802_11_SUPPORTED_RATES		ccpu2(0x0d01020e)
> +#define OID_802_11_CONFIGURATION		ccpu2(0x0d010211)
> +#define OID_802_11_BSSID_LIST			ccpu2(0x0d010217)
> +
> +
> +/* Typical noise/maximum signal level values taken from ndiswrapper iw_ndis.h */
> +#define	WL_NOISE	-96	/* typical noise level in dBm */
> +#define	WL_SIGMAX	-32	/* typical maximum signal level in dBm */
> +
> +
> +/* Assume that Broadcom 4320 (only chipset at time of writing known to be
> + * based on wireless rndis) has default txpower of 13dBm.
> + * This value is from Linksys WUSB54GSC User Guide, Appendix F: Specifications.
> + *   13dBm == 19.9mW
> + */
> +#define BCM4320_DEFAULT_TXPOWER 20
> +
> +
> +/* codes for "status" field of completion messages */
> +#define RNDIS_STATUS_ADAPTER_NOT_READY		ccpu2(0xc0010011)
> +#define RNDIS_STATUS_ADAPTER_NOT_OPEN		ccpu2(0xc0010012)
> +
> +
> +/* NDIS data structures. Taken from wpa_supplicant driver_ndis.c
> + * slightly modified for datatype endianess, etc
> + */
> +#define NDIS_802_11_LENGTH_SSID 32
> +#define NDIS_802_11_LENGTH_RATES 8
> +#define NDIS_802_11_LENGTH_RATES_EX 16
> +
> +struct NDIS_802_11_SSID {
> +	__le32 SsidLength;
> +	u8 Ssid[NDIS_802_11_LENGTH_SSID];
> +} __attribute__((packed));
> +
> +enum NDIS_802_11_NETWORK_TYPE {
> +	Ndis802_11FH,
> +	Ndis802_11DS,
> +	Ndis802_11OFDM5,
> +	Ndis802_11OFDM24,
> +	Ndis802_11NetworkTypeMax
> +};
> +
> +struct NDIS_802_11_CONFIGURATION_FH {
> +	__le32 Length;
> +	__le32 HopPattern;
> +	__le32 HopSet;
> +	__le32 DwellTime;
> +} __attribute__((packed));
> +
> +struct NDIS_802_11_CONFIGURATION {
> +	__le32 Length;
> +	__le32 BeaconPeriod;
> +	__le32 ATIMWindow;
> +	__le32 DSConfig;
> +	struct NDIS_802_11_CONFIGURATION_FH FHConfig;
> +} __attribute__((packed));
> +
> +enum NDIS_802_11_NETWORK_INFRASTRUCTURE {
> +	Ndis802_11IBSS,
> +	Ndis802_11Infrastructure,
> +	Ndis802_11AutoUnknown,
> +	Ndis802_11InfrastructureMax
> +};
> +
> +enum NDIS_802_11_AUTHENTICATION_MODE {
> +	Ndis802_11AuthModeOpen,
> +	Ndis802_11AuthModeShared,
> +	Ndis802_11AuthModeAutoSwitch,
> +	Ndis802_11AuthModeWPA,
> +	Ndis802_11AuthModeWPAPSK,
> +	Ndis802_11AuthModeWPANone,
> +	Ndis802_11AuthModeWPA2,
> +	Ndis802_11AuthModeWPA2PSK,
> +	Ndis802_11AuthModeMax
> +};
> +
> +enum NDIS_802_11_ENCRYPTION_STATUS {
> +	Ndis802_11WEPEnabled,
> +	Ndis802_11Encryption1Enabled = Ndis802_11WEPEnabled,
> +	Ndis802_11WEPDisabled,
> +	Ndis802_11EncryptionDisabled = Ndis802_11WEPDisabled,
> +	Ndis802_11WEPKeyAbsent,
> +	Ndis802_11Encryption1KeyAbsent = Ndis802_11WEPKeyAbsent,
> +	Ndis802_11WEPNotSupported,
> +	Ndis802_11EncryptionNotSupported = Ndis802_11WEPNotSupported,
> +	Ndis802_11Encryption2Enabled,
> +	Ndis802_11Encryption2KeyAbsent,
> +	Ndis802_11Encryption3Enabled,
> +	Ndis802_11Encryption3KeyAbsent
> +};
> +
> +enum NDIS_802_11_PRIVACY_FILTER {
> +	Ndis802_11PrivFilterAcceptAll,
> +	Ndis802_11PrivFilter8021xWEP
> +};
> +
> +struct NDIS_WLAN_BSSID_EX {
> +	__le32 Length;
> +	u8 MacAddress[6];
> +	u8 Padding[2];
> +	struct NDIS_802_11_SSID Ssid;
> +	__le32 Privacy;
> +	__le32 Rssi;
> +	enum NDIS_802_11_NETWORK_TYPE NetworkTypeInUse;
> +	struct NDIS_802_11_CONFIGURATION Configuration;
> +	enum NDIS_802_11_NETWORK_INFRASTRUCTURE InfrastructureMode;
> +	u8 SupportedRates[NDIS_802_11_LENGTH_RATES_EX];
> +	__le32 IELength;
> +	u8 IEs[0];
> +} __attribute__((packed));
> +
> +struct NDIS_802_11_BSSID_LIST_EX {
> +	__le32 NumberOfItems;
> +	struct NDIS_WLAN_BSSID_EX Bssid[0];
> +} __attribute__((packed));
> +
> +struct NDIS_802_11_FIXED_IEs {
> +	u8 Timestamp[8];
> +	__le16 BeaconInterval;
> +	__le16 Capabilities;
> +} __attribute__((packed));
> +
> +struct NDIS_802_11_WEP {
> +	__le32 Length;
> +	__le32 KeyIndex;
> +	__le32 KeyLength;
> +	u8 KeyMaterial[32];
> +} __attribute__((packed));
> +
> +struct NDIS_802_11_KEY {
> +	__le32 Length;
> +	__le32 KeyIndex;
> +	__le32 KeyLength;
> +	u8 Bssid[6];
> +	u8 Padding[6];
> +	__le64 KeyRSC;
> +	u8 KeyMaterial[32];
> +} __attribute__((packed));
> +
> +struct NDIS_802_11_REMOVE_KEY {
> +	__le32 Length;
> +	__le32 KeyIndex;
> +	u8 Bssid[6];
> +} __attribute__((packed));
> +
> +struct RNDIS_CONFIG_PARAMETER_INFOBUFFER {
> +	__le32 ParameterNameOffset;
> +	__le32 ParameterNameLength;
> +	__le32 ParameterType;
> +	__le32 ParameterValueOffset;
> +	__le32 ParameterValueLength;
> +} __attribute__((packed));
> +
> +/* these have to match what is in wpa_supplicant */
> +enum { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP } wpa_alg;
> +enum { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP, CIPHER_WEP104 }
> +	wpa_cipher;
> +enum { KEY_MGMT_802_1X, KEY_MGMT_PSK, KEY_MGMT_NONE, KEY_MGMT_802_1X_NO_WPA,
> +	KEY_MGMT_WPA_NONE } wpa_key_mgmt;
> +
> +/*
> + *  private data
> + */
> +#define NET_TYPE_11FB	0
> +
> +#define CAP_MODE_80211A		1
> +#define CAP_MODE_80211B		2
> +#define CAP_MODE_80211G		4
> +#define CAP_MODE_MASK		7
> +#define CAP_SUPPORT_TXPOWER	8
> +
> +#define WORK_CONNECTION_EVENT	(1<<0)
> +#define WORK_SET_MULTICAST_LIST	(1<<1)
> +
> +/* RNDIS device private data */
> +struct rndis_wext_private {
> +	char name[32];
> +
> +	struct usbnet *usbdev;
> +
> +	struct workqueue_struct *workqueue;
> +	struct delayed_work stats_work;
> +	struct work_struct work;
> +	struct mutex command_lock;
> +	spinlock_t stats_lock;
> +	unsigned long work_pending;
> +
> +	struct iw_statistics iwstats;
> +	struct iw_statistics privstats;
> +
> +	int  nick_len;
> +	char nick[32];
> +
> +	int caps;
> +	int multicast_size;
> +
> +	/* module parameters */
> +	char param_country[4];
> +	int  param_frameburst;
> +	int  param_afterburner;
> +	int  param_power_save;
> +	int  param_power_output;
> +	int  param_roamtrigger;
> +	int  param_roamdelta;
> +	u32  param_workaround_interval;
> +
> +	/* hardware state */
> +	int radio_on;
> +	int infra_mode;
> +	struct NDIS_802_11_SSID essid;
> +
> +	/* encryption stuff */
> +	int  encr_tx_key_index;
> +	char encr_keys[4][32];
> +	int  encr_key_len[4];
> +	int  wpa_version;
> +	int  wpa_keymgmt;
> +	int  wpa_authalg;
> +	int  wpa_ie_len;
> +	u8  *wpa_ie;
> +	int  wpa_cipher_pair;
> +	int  wpa_cipher_group;
> +};
> +
> +
> +static const int freq_chan[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
> +				2447, 2452, 2457, 2462, 2467, 2472, 2484 };
> +
> +static const int rates_80211g[8] = { 6, 9, 12, 18, 24, 36, 48, 54 };
> +
> +static const int bcm4320_power_output[4] = { 25, 50, 75, 100 };
> +
> +static const unsigned char zero_bssid[ETH_ALEN] = {0,};
> +static const unsigned char ffff_bssid[ETH_ALEN] = { 0xff, 0xff, 0xff,
> +							0xff, 0xff, 0xff };
> +
> +
> +static struct rndis_wext_private *get_rndis_wext_priv(struct usbnet *dev)
> +{
> +	return (struct rndis_wext_private *)dev->driver_priv;
> +}
> +
> +
> +static u32 get_bcm4320_power(struct rndis_wext_private *priv)
> +{
> +	return BCM4320_DEFAULT_TXPOWER *
> +		bcm4320_power_output[priv->param_power_output] / 100;
> +}
> +
> +
> +/* translate error code */
> +static int rndis_error_status(__le32 rndis_status)
> +{
> +	int ret = -EINVAL;
> +	switch (rndis_status) {
> +	case RNDIS_STATUS_SUCCESS:
> +		ret = 0;
> +		break;
> +	case RNDIS_STATUS_FAILURE:
> +	case RNDIS_STATUS_INVALID_DATA:
> +		ret = -EINVAL;
> +		break;
> +	case RNDIS_STATUS_NOT_SUPPORTED:
> +		ret = -EOPNOTSUPP;
> +		break;
> +	case RNDIS_STATUS_ADAPTER_NOT_READY:
> +	case RNDIS_STATUS_ADAPTER_NOT_OPEN:
> +		ret = -EBUSY;
> +		break;
> +	}
> +	return ret;
> +}
> +
> +
> +static int rndis_query_oid(struct usbnet *dev, __le32 oid, void *data, int *len)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
> +	union {
> +		void			*buf;
> +		struct rndis_msg_hdr	*header;
> +		struct rndis_query	*get;
> +		struct rndis_query_c	*get_c;
> +	} u;
> +	int ret, buflen;
> +
> +	buflen = *len + sizeof(*u.get);
> +	if (buflen < CONTROL_BUFFER_SIZE)
> +		buflen = CONTROL_BUFFER_SIZE;
> +	u.buf = kmalloc(buflen, GFP_KERNEL);
> +	if (!u.buf)
> +		return -ENOMEM;
> +	memset(u.get, 0, sizeof *u.get);
> +	u.get->msg_type = RNDIS_MSG_QUERY;
> +	u.get->msg_len = ccpu2(sizeof *u.get);
> +	u.get->oid = oid;
> +
> +	mutex_lock(&priv->command_lock);
> +	ret = rndis_command(dev, u.header);
> +	mutex_unlock(&priv->command_lock);
> +
> +	if (ret == 0) {
> +		ret = le32_to_cpu(u.get_c->len);
> +		*len = (*len > ret) ? ret : *len;
> +		memcpy(data, u.buf + le32_to_cpu(u.get_c->offset) + 8, *len);
> +		ret = rndis_error_status(u.get_c->status);
> +	}
> +
> +	kfree(u.buf);
> +	return ret;
> +}
> +
> +
> +static int rndis_set_oid(struct usbnet *dev, __le32 oid, void *data, int len)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
> +	union {
> +		void			*buf;
> +		struct rndis_msg_hdr	*header;
> +		struct rndis_set	*set;
> +		struct rndis_set_c	*set_c;
> +	} u;
> +	int ret, buflen;
> +
> +	buflen = len + sizeof(*u.set);
> +	if (buflen < CONTROL_BUFFER_SIZE)
> +		buflen = CONTROL_BUFFER_SIZE;
> +	u.buf = kmalloc(buflen, GFP_KERNEL);
> +	if (!u.buf)
> +		return -ENOMEM;
> +
> +	memset(u.set, 0, sizeof *u.set);
> +	u.set->msg_type = RNDIS_MSG_SET;
> +	u.set->msg_len = cpu_to_le32(sizeof(*u.set) + len);
> +	u.set->oid = oid;
> +	u.set->len = cpu_to_le32(len);
> +	u.set->offset = ccpu2(sizeof(*u.set) - 8);
> +	u.set->handle = ccpu2(0);
> +	memcpy(u.buf + sizeof(*u.set), data, len);
> +
> +	mutex_lock(&priv->command_lock);
> +	ret = rndis_command(dev, u.header);
> +	mutex_unlock(&priv->command_lock);
> +
> +	if (ret == 0)
> +		ret = rndis_error_status(u.set_c->status);
> +
> +	kfree(u.buf);
> +	return ret;
> +}
> +
> +
> +/*
> + * Specs say that we can only set config parameters only soon after device
> + * initialization.
> + *   value_type: 0 = u32, 2 = unicode string
> + */
> +static int rndis_set_config_parameter(struct usbnet *dev, char *param,
> +						int value_type, void *value)
> +{
> +	struct RNDIS_CONFIG_PARAMETER_INFOBUFFER *infobuf;
> +	int value_len, info_len, param_len, ret, i;
> +	__le16 *unibuf;
> +	__le32 *dst_value;
> +
> +	if (value_type == 0)
> +		value_len = sizeof(__le32);
> +	else if (value_type == 2)
> +		value_len = strlen(value) * sizeof(__le16);
> +	else
> +		return -EINVAL;
> +
> +	param_len = strlen(param) * sizeof(__le16);
> +	info_len = sizeof(*infobuf) + param_len + value_len;
> +
> +#ifdef DEBUG
> +	info_len += 12;
> +#endif
> +	infobuf = kmalloc(info_len, GFP_KERNEL);
> +	if (!infobuf)
> +		return -ENOMEM;
> +
> +#ifdef DEBUG
> +	info_len -= 12;
> +	/* extra 12 bytes are for padding (debug output) */
> +	memset(infobuf, 0xCC, info_len + 12);
> +#endif
> +
> +	if (value_type == 2)
> +		devdbg(dev, "setting config parameter: %s, value: %s",
> +						param, (u8 *)value);
> +	else
> +		devdbg(dev, "setting config parameter: %s, value: %d",
> +						param, *(u32 *)value);
> +
> +	infobuf->ParameterNameOffset = cpu_to_le32(sizeof(*infobuf));
> +	infobuf->ParameterNameLength = cpu_to_le32(param_len);
> +	infobuf->ParameterType = cpu_to_le32(value_type);
> +	infobuf->ParameterValueOffset = cpu_to_le32(sizeof(*infobuf) +
> +								param_len);
> +	infobuf->ParameterValueLength = cpu_to_le32(value_len);
> +
> +	/* simple string to unicode string conversion */
> +	unibuf = (void *)infobuf + sizeof(*infobuf);
> +	for (i = 0; i < param_len / sizeof(__le16); i++)
> +		unibuf[i] = cpu_to_le16(param[i]);
> +
> +	if (value_type == 2) {
> +		unibuf = (void *)infobuf + sizeof(*infobuf) + param_len;
> +		for (i = 0; i < value_len / sizeof(__le16); i++)
> +			unibuf[i] = cpu_to_le16(((u8 *)value)[i]);
> +	} else {
> +		dst_value = (void *)infobuf + sizeof(*infobuf) + param_len;
> +		*dst_value = cpu_to_le32(*(u32 *)value);
> +	}
> +
> +#ifdef DEBUG
> +	devdbg(dev, "info buffer (len: %d):", info_len);
> +	for (i = 0; i < info_len; i += 12) {
> +		u32 *tmp = (u32 *)((u8 *)infobuf + i);
> +		devdbg(dev, "%08X:%08X:%08X",
> +			cpu_to_be32(tmp[0]),
> +			cpu_to_be32(tmp[1]),
> +			cpu_to_be32(tmp[2]));
> +	}
> +#endif
> +
> +	ret = rndis_set_oid(dev, OID_GEN_RNDIS_CONFIG_PARAMETER,
> +							infobuf, info_len);
> +	if (ret != 0)
> +		devdbg(dev, "setting rndis config paramater failed, %d.", ret);
> +
> +	kfree(infobuf);
> +	return ret;
> +}
> +
> +static int rndis_set_config_parameter_str(struct usbnet *dev,
> +						char *param, char *value)
> +{
> +	return(rndis_set_config_parameter(dev, param, 2, value));
> +}
> +
> +/*static int rndis_set_config_parameter_u32(struct usbnet *dev,
> +						char *param, u32 value)
> +{
> +	return(rndis_set_config_parameter(dev, param, 0, &value));
> +}*/
> +
> +
> +/*
> + * data conversion functions
> + */
> +static int level_to_qual(int level)
> +{
> +	int qual = 100 * (level - WL_NOISE) / (WL_SIGMAX - WL_NOISE);
> +	return qual >= 0 ? (qual <= 100 ? qual : 100) : 0;
> +}
> +
> +
> +static void dsconfig_to_freq(unsigned int dsconfig, struct iw_freq *freq)
> +{
> +	freq->e = 0;
> +	freq->i = 0;
> +	freq->flags = 0;
> +
> +	/* see comment in wireless.h above the "struct iw_freq"
> +	 * definition for an explanation of this if
> +	 * NOTE: 1000000 is due to the kHz
> +	 */
> +	if (dsconfig > 1000000) {
> +		freq->m = dsconfig / 10;
> +		freq->e = 1;
> +	} else
> +		freq->m = dsconfig;
> +
> +	/* convert from kHz to Hz */
> +	freq->e += 3;
> +}
> +
> +
> +static int freq_to_dsconfig(struct iw_freq *freq, unsigned int *dsconfig)
> +{
> +	if (freq->m < 1000 && freq->e == 0) {
> +		if (freq->m >= 1 &&
> +			freq->m <= (sizeof(freq_chan) / sizeof(freq_chan[0])))
> +			*dsconfig = freq_chan[freq->m - 1] * 1000;
> +		else
> +			return -1;
> +	} else {
> +		int i;
> +		*dsconfig = freq->m;
> +		for (i = freq->e; i > 0; i--)
> +			*dsconfig *= 10;
> +		*dsconfig /= 1000;
> +	}
> +
> +	return 0;
> +}
> +
> +
> +/*
> + * common functions
> + */
> +static int
> +add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index);
> +
> +static int get_essid(struct usbnet *usbdev, struct NDIS_802_11_SSID *ssid)
> +{
> +	int ret, len;
> +
> +	len = sizeof(*ssid);
> +	ret = rndis_query_oid(usbdev, OID_802_11_SSID, ssid, &len);
> +
> +	if (ret != 0)
> +		ssid->SsidLength = 0;
> +
> +#ifdef DEBUG
> +	{
> +		unsigned char tmp[NDIS_802_11_LENGTH_SSID + 1];
> +
> +		memcpy(tmp, ssid->Ssid, le32_to_cpu(ssid->SsidLength));
> +		tmp[le32_to_cpu(ssid->SsidLength)] = 0;
> +		devdbg(usbdev, "get_essid: '%s', ret: %d", tmp, ret);
> +	}
> +#endif
> +	return ret;
> +}
> +
> +
> +static int set_essid(struct usbnet *usbdev, struct NDIS_802_11_SSID *ssid)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	int ret;
> +
> +	ret = rndis_set_oid(usbdev, OID_802_11_SSID, ssid, sizeof(*ssid));
> +	if (ret == 0) {
> +		memcpy(&priv->essid, ssid, sizeof(priv->essid));
> +		priv->radio_on = 1;
> +		devdbg(usbdev, "set_essid: radio_on = 1");
> +	}
> +
> +	return ret;
> +}
> +
> +
> +static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
> +{
> +	int ret, len;
> +
> +	len = ETH_ALEN;
> +	ret = rndis_query_oid(usbdev, OID_802_11_BSSID, bssid, &len);
> +
> +	if (ret != 0)
> +		memset(bssid, 0, ETH_ALEN);
> +
> +	return ret;
> +}
> +
> +
> +static int is_associated(struct usbnet *usbdev)
> +{
> +	u8 bssid[ETH_ALEN];
> +	int ret;
> +
> +	ret = get_bssid(usbdev, bssid);
> +
> +	return(ret == 0 && memcmp(bssid, zero_bssid, ETH_ALEN) != 0);
> +}
> +
> +
> +static int disassociate(struct usbnet *usbdev, int reset_ssid)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	struct NDIS_802_11_SSID ssid;
> +	int i, ret = 0;
> +
> +	if (priv->radio_on) {
> +		ret = rndis_set_oid(usbdev, OID_802_11_DISASSOCIATE, NULL, 0);
> +		if (ret == 0) {
> +			priv->radio_on = 0;
> +			devdbg(usbdev, "disassociate: radio_on = 0");
> +
> +			if (reset_ssid)
> +				msleep(100);
> +		}
> +	}
> +
> +	/* disassociate causes radio to be turned off; if reset_ssid
> +	 * is given, set random ssid to enable radio */
> +	if (reset_ssid) {
> +		ssid.SsidLength = cpu_to_le32(sizeof(ssid.Ssid));
> +		get_random_bytes(&ssid.Ssid[2], sizeof(ssid.Ssid)-2);
> +		ssid.Ssid[0] = 0x1;
> +		ssid.Ssid[1] = 0xff;
> +		for (i = 2; i < sizeof(ssid.Ssid); i++)
> +			ssid.Ssid[i] = 0x1 + (ssid.Ssid[i] * 0xfe / 0xff);
> +		ret = set_essid(usbdev, &ssid);
> +	}
> +	return ret;
> +}
> +
> +
> +static int set_auth_mode(struct usbnet *usbdev, int wpa_version, int authalg)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	__le32 tmp;
> +	int auth_mode, ret;
> +
> +	devdbg(usbdev, "set_auth_mode: wpa_version=0x%x authalg=0x%x "
> +		"keymgmt=0x%x", wpa_version, authalg, priv->wpa_keymgmt);
> +
> +	if (wpa_version & IW_AUTH_WPA_VERSION_WPA2) {
> +		if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
> +			auth_mode = Ndis802_11AuthModeWPA2;
> +		else
> +			auth_mode = Ndis802_11AuthModeWPA2PSK;
> +	} else if (wpa_version & IW_AUTH_WPA_VERSION_WPA) {
> +		if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_802_1X)
> +			auth_mode = Ndis802_11AuthModeWPA;
> +		else if (priv->wpa_keymgmt & IW_AUTH_KEY_MGMT_PSK)
> +			auth_mode = Ndis802_11AuthModeWPAPSK;
> +		else
> +			auth_mode = Ndis802_11AuthModeWPANone;
> +	} else if (authalg & IW_AUTH_ALG_SHARED_KEY) {
> +		if (authalg & IW_AUTH_ALG_OPEN_SYSTEM)
> +			auth_mode = Ndis802_11AuthModeAutoSwitch;
> +		else
> +			auth_mode = Ndis802_11AuthModeShared;
> +	} else
> +		auth_mode = Ndis802_11AuthModeOpen;
> +
> +	tmp = cpu_to_le32(auth_mode);
> +	ret = rndis_set_oid(usbdev, OID_802_11_AUTHENTICATION_MODE, &tmp,
> +								sizeof(tmp));
> +	if (ret != 0) {
> +		devwarn(usbdev, "setting auth mode failed (%08X)", ret);
> +		return ret;
> +	}
> +
> +	priv->wpa_version = wpa_version;
> +	priv->wpa_authalg = authalg;
> +	return 0;
> +}
> +
> +
> +static int set_priv_filter(struct usbnet *usbdev)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	__le32 tmp;
> +
> +	devdbg(usbdev, "set_priv_filter: wpa_version=0x%x", priv->wpa_version);
> +
> +	if (priv->wpa_version & IW_AUTH_WPA_VERSION_WPA2 ||
> +	    priv->wpa_version & IW_AUTH_WPA_VERSION_WPA)
> +		tmp = cpu_to_le32(Ndis802_11PrivFilter8021xWEP);
> +	else
> +		tmp = cpu_to_le32(Ndis802_11PrivFilterAcceptAll);
> +
> +	return rndis_set_oid(usbdev, OID_802_11_PRIVACY_FILTER, &tmp,
> +								sizeof(tmp));
> +}
> +
> +
> +static int set_encr_mode(struct usbnet *usbdev, int pairwise, int groupwise)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	__le32 tmp;
> +	int encr_mode, ret;
> +
> +	devdbg(usbdev, "set_encr_mode: cipher_pair=0x%x cipher_group=0x%x",
> +		pairwise,
> +		groupwise);
> +
> +	if (pairwise & IW_AUTH_CIPHER_CCMP)
> +		encr_mode = Ndis802_11Encryption3Enabled;
> +	else if (pairwise & IW_AUTH_CIPHER_TKIP)
> +		encr_mode = Ndis802_11Encryption2Enabled;
> +	else if (pairwise &
> +		 (IW_AUTH_CIPHER_WEP40 | IW_AUTH_CIPHER_WEP104))
> +		encr_mode = Ndis802_11Encryption1Enabled;
> +	else if (groupwise & IW_AUTH_CIPHER_CCMP)
> +		encr_mode = Ndis802_11Encryption3Enabled;
> +	else if (groupwise & IW_AUTH_CIPHER_TKIP)
> +		encr_mode = Ndis802_11Encryption2Enabled;
> +	else
> +		encr_mode = Ndis802_11EncryptionDisabled;
> +
> +	tmp = cpu_to_le32(encr_mode);
> +	ret = rndis_set_oid(usbdev, OID_802_11_ENCRYPTION_STATUS, &tmp,
> +								sizeof(tmp));
> +	if (ret != 0) {
> +		devwarn(usbdev, "setting encr mode failed (%08X)", ret);
> +		return ret;
> +	}
> +
> +	priv->wpa_cipher_pair = pairwise;
> +	priv->wpa_cipher_group = groupwise;
> +	return 0;
> +}
> +
> +
> +static int set_assoc_params(struct usbnet *usbdev)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +
> +	set_auth_mode(usbdev, priv->wpa_version, priv->wpa_authalg);
> +	set_priv_filter(usbdev);
> +	set_encr_mode(usbdev, priv->wpa_cipher_pair, priv->wpa_cipher_group);
> +
> +	return 0;
> +}
> +
> +
> +static int set_infra_mode(struct usbnet *usbdev, int mode)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	__le32 tmp;
> +	int ret, i;
> +
> +	devdbg(usbdev, "set_infra_mode: infra_mode=0x%x", priv->infra_mode);
> +
> +	tmp = cpu_to_le32(mode);
> +	ret = rndis_set_oid(usbdev, OID_802_11_INFRASTRUCTURE_MODE, &tmp,
> +								sizeof(tmp));
> +	if (ret != 0) {
> +		devwarn(usbdev, "setting infra mode failed (%08X)", ret);
> +		return ret;
> +	}
> +
> +	/* NDIS drivers clear keys when infrastructure mode is
> +	 * changed. But Linux tools assume otherwise. So set the
> +	 * keys */
> +	if (priv->wpa_keymgmt == 0 ||
> +		priv->wpa_keymgmt == IW_AUTH_KEY_MGMT_802_1X) {
> +		for (i = 0; i < 4; i++) {
> +			if (priv->encr_key_len[i] > 0)
> +				add_wep_key(usbdev, priv->encr_keys[i],
> +						priv->encr_key_len[i], i);
> +		}
> +	}
> +
> +	priv->infra_mode = mode;
> +	return 0;
> +}
> +
> +
> +static void set_default_iw_params(struct usbnet *usbdev)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +
> +	priv->wpa_keymgmt = 0;
> +	priv->wpa_version = 0;
> +
> +	set_infra_mode(usbdev, Ndis802_11Infrastructure);
> +	set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
> +				IW_AUTH_ALG_OPEN_SYSTEM);
> +	set_priv_filter(usbdev);
> +	set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
> +}
> +
> +
> +static int deauthenticate(struct usbnet *usbdev)
> +{
> +	int ret;
> +
> +	ret = disassociate(usbdev, 1);
> +	set_default_iw_params(usbdev);
> +	return ret;
> +}
> +
> +
> +/* index must be 0 - N, as per NDIS  */
> +static int add_wep_key(struct usbnet *usbdev, char *key, int key_len, int index)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	struct NDIS_802_11_WEP ndis_key;
> +	int ret;
> +
> +	if (key_len <= 0 || key_len > 32 || index < 0 || index >= 4)
> +		return -EINVAL;
> +
> +	memset(&ndis_key, 0, sizeof(ndis_key));
> +
> +	ndis_key.Length = cpu_to_le32(sizeof(ndis_key));
> +	ndis_key.KeyLength = cpu_to_le32(key_len);
> +	ndis_key.KeyIndex = cpu_to_le32(index);
> +	memcpy(&ndis_key.KeyMaterial, key, key_len);
> +
> +	if (index == priv->encr_tx_key_index) {
> +		ndis_key.KeyIndex |= cpu_to_le32(1 << 31);
> +		ret = set_encr_mode(usbdev, IW_AUTH_CIPHER_WEP104,
> +						IW_AUTH_CIPHER_NONE);
> +		if (ret)
> +			devwarn(usbdev, "encryption couldn't be enabled (%08X)",
> +									ret);
> +	}
> +
> +	ret = rndis_set_oid(usbdev, OID_802_11_ADD_WEP, &ndis_key,
> +							sizeof(ndis_key));
> +	if (ret != 0) {
> +		devwarn(usbdev, "adding encryption key %d failed (%08X)",
> +							index+1, ret);
> +		return ret;
> +	}
> +
> +	priv->encr_key_len[index] = key_len;
> +	memcpy(&priv->encr_keys[index], key, key_len);
> +
> +	return 0;
> +}
> +
> +
> +/* remove_key is for both wep and wpa */
> +static int remove_key(struct usbnet *usbdev, int index, u8 bssid[ETH_ALEN])
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	struct NDIS_802_11_REMOVE_KEY remove_key;
> +	__le32 keyindex;
> +	int ret;
> +
> +	if (priv->encr_key_len[index] == 0)
> +		return 0;
> +
> +	priv->encr_key_len[index] = 0;
> +	memset(&priv->encr_keys[index], 0, sizeof(priv->encr_keys[index]));
> +
> +	if (priv->wpa_cipher_pair == IW_AUTH_CIPHER_TKIP ||
> +	    priv->wpa_cipher_pair == IW_AUTH_CIPHER_CCMP ||
> +	    priv->wpa_cipher_group == IW_AUTH_CIPHER_TKIP ||
> +	    priv->wpa_cipher_group == IW_AUTH_CIPHER_CCMP) {
> +		remove_key.Length = cpu_to_le32(sizeof(remove_key));
> +		remove_key.KeyIndex = cpu_to_le32(index);
> +		if (bssid) {
> +			/* pairwise key */
> +			if (memcmp(bssid, ffff_bssid, ETH_ALEN) != 0)
> +				remove_key.KeyIndex |= cpu_to_le32(1 << 30);
> +			memcpy(remove_key.Bssid, bssid,
> +					sizeof(remove_key.Bssid));
> +		} else
> +			memset(remove_key.Bssid, 0xff,
> +						sizeof(remove_key.Bssid));
> +
> +		ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_KEY, &remove_key,
> +							sizeof(remove_key));
> +		if (ret != 0)
> +			return ret;
> +	} else {
> +		keyindex = cpu_to_le32(index);
> +		ret = rndis_set_oid(usbdev, OID_802_11_REMOVE_WEP, &keyindex,
> +							sizeof(keyindex));
> +		if (ret != 0) {
> +			devwarn(usbdev,
> +				"removing encryption key %d failed (%08X)",
> +				index, ret);
> +			return ret;
> +		}
> +	}
> +
> +	/* if it is transmit key, disable encryption */
> +	if (index == priv->encr_tx_key_index)
> +		set_encr_mode(usbdev, IW_AUTH_CIPHER_NONE, IW_AUTH_CIPHER_NONE);
> +
> +	return 0;
> +}
> +
> +
> +static void set_multicast_list(struct usbnet *usbdev)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	struct dev_mc_list *mclist;
> +	__le32 filter;
> +	int ret, i, size;
> +	char *buf;
> +
> +	filter = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
> +
> +	if (usbdev->net->flags & IFF_PROMISC) {
> +		filter |= RNDIS_PACKET_TYPE_PROMISCUOUS |
> +			RNDIS_PACKET_TYPE_ALL_LOCAL;
> +	} else if (usbdev->net->flags & IFF_ALLMULTI ||
> +		   usbdev->net->mc_count > priv->multicast_size) {
> +		filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
> +	} else if (usbdev->net->mc_count > 0) {
> +		size = min(priv->multicast_size, usbdev->net->mc_count);
> +		buf = kmalloc(size * ETH_ALEN, GFP_KERNEL);
> +		if (!buf) {
> +			devwarn(usbdev,
> +				"couldn't alloc %d bytes of memory",
> +				size * ETH_ALEN);
> +			return;
> +		}
> +
> +		mclist = usbdev->net->mc_list;
> +		for (i = 0; i < size && mclist; mclist = mclist->next) {
> +			if (mclist->dmi_addrlen != ETH_ALEN)
> +				continue;
> +
> +			memcpy(buf + i * ETH_ALEN, mclist->dmi_addr, ETH_ALEN);
> +			i++;
> +		}
> +
> +		ret = rndis_set_oid(usbdev, OID_802_3_MULTICAST_LIST, buf,
> +								i * ETH_ALEN);
> +		if (ret == 0 && i > 0)
> +			filter |= RNDIS_PACKET_TYPE_MULTICAST;
> +		else
> +			filter |= RNDIS_PACKET_TYPE_ALL_MULTICAST;
> +
> +		devdbg(usbdev, "OID_802_3_MULTICAST_LIST(%d, max: %d) -> %d",
> +						i, priv->multicast_size, ret);
> +
> +		kfree(buf);
> +	}
> +
> +	ret = rndis_set_oid(usbdev, OID_GEN_CURRENT_PACKET_FILTER, &filter,
> +							sizeof(filter));
> +	if (ret < 0) {
> +		devwarn(usbdev, "couldn't set packet filter: %08x",
> +							le32_to_cpu(filter));
> +	}
> +
> +	devdbg(usbdev, "OID_GEN_CURRENT_PACKET_FILTER(%08x) -> %d",
> +						le32_to_cpu(filter), ret);
> +}
> +
> +
> +/*
> + * wireless extension handlers
> + */
> +
> +static int rndis_iw_commit(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	/* dummy op */
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_get_range(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct iw_range *range = (struct iw_range *)extra;
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	int len, ret, i, j, num, has_80211g_rates;
> +	u8 rates[8];
> +	__le32 tx_power;
> +
> +	devdbg(usbdev, "SIOCGIWRANGE");
> +
> +	/* clear iw_range struct */
> +	memset(range, 0, sizeof(*range));
> +	wrqu->data.length = sizeof(*range);
> +
> +	range->txpower_capa = IW_TXPOW_MWATT;
> +	range->num_txpower = 1;
> +	if (priv->caps & CAP_SUPPORT_TXPOWER) {
> +		len = sizeof(tx_power);
> +		ret = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
> +						&tx_power, &len);
> +		if (ret == 0 && le32_to_cpu(tx_power) != 0xFF)
> +			range->txpower[0] = le32_to_cpu(tx_power);
> +		else
> +			range->txpower[0] = get_bcm4320_power(priv);
> +	} else
> +		range->txpower[0] = get_bcm4320_power(priv);
> +
> +	len = sizeof(rates);
> +	ret = rndis_query_oid(usbdev, OID_802_11_SUPPORTED_RATES, &rates,
> +								&len);
> +	has_80211g_rates = 0;
> +	if (ret == 0) {
> +		j = 0;
> +		for (i = 0; i < len; i++) {
> +			if (rates[i] == 0)
> +				break;
> +			range->bitrate[j] = (rates[i] & 0x7f) * 500000;
> +			/* check for non 802.11b rates */
> +			if (range->bitrate[j] == 6000000 ||
> +				range->bitrate[j] == 9000000 ||
> +				(range->bitrate[j] >= 12000000 &&
> +				range->bitrate[j] != 22000000))
> +				has_80211g_rates = 1;
> +			j++;
> +		}
> +		range->num_bitrates = j;
> +	} else
> +		range->num_bitrates = 0;
> +
> +	/* fill in 802.11g rates */
> +	if (has_80211g_rates) {
> +		num = range->num_bitrates;
> +		for (i = 0; i < sizeof(rates_80211g); i++) {
> +			for (j = 0; j < num; j++) {
> +				if (range->bitrate[j] ==
> +					rates_80211g[i] * 1000000)
> +					break;
> +			}
> +			if (j == num)
> +				range->bitrate[range->num_bitrates++] =
> +					rates_80211g[i] * 1000000;
> +			if (range->num_bitrates == IW_MAX_BITRATES)
> +				break;
> +		}
> +
> +		/* estimated max real througput in bps */
> +		range->throughput = 54 * 1000 * 1000 / 2;
> +
> +		/* ~35%	more with afterburner */
> +		if (priv->param_afterburner)
> +			range->throughput = range->throughput / 100 * 135;
> +	} else {
> +		/* estimated max real througput in bps */
> +		range->throughput = 11 * 1000 * 1000 / 2;
> +	}
> +
> +	range->num_channels = (sizeof(freq_chan)/sizeof(freq_chan[0]));
> +
> +	for (i = 0; i < (sizeof(freq_chan)/sizeof(freq_chan[0])) &&
> +			i < IW_MAX_FREQUENCIES; i++) {
> +		range->freq[i].i = i + 1;
> +		range->freq[i].m = freq_chan[i] * 100000;
> +		range->freq[i].e = 1;
> +	}
> +	range->num_frequency = i;
> +
> +	range->min_rts = 0;
> +	range->max_rts = 2347;
> +	range->min_frag = 256;
> +	range->max_frag = 2346;
> +
> +	range->max_qual.qual = 100;
> +	range->max_qual.level = 154;
> +	range->max_qual.updated = IW_QUAL_QUAL_UPDATED
> +				| IW_QUAL_LEVEL_UPDATED
> +				| IW_QUAL_NOISE_INVALID;
> +
> +	range->we_version_compiled = WIRELESS_EXT;
> +	range->we_version_source = WIRELESS_EXT;
> +
> +	range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
> +			IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_get_name(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +
> +	strcpy(wrqu->name, priv->name);
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_set_essid(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
> +{
> +	struct NDIS_802_11_SSID ssid;
> +	int length = wrqu->essid.length;
> +	struct usbnet *usbdev = dev->priv;
> +
> +	devdbg(usbdev, "SIOCSIWESSID: [flags:%d,len:%d] '%.32s'",
> +		wrqu->essid.flags, wrqu->essid.length, essid);
> +
> +	if (length > NDIS_802_11_LENGTH_SSID)
> +		length = NDIS_802_11_LENGTH_SSID;
> +
> +	ssid.SsidLength = cpu_to_le32(length);
> +	if (length > 0)
> +		memcpy(ssid.Ssid, essid, length);
> +	else
> +		memset(ssid.Ssid, 0, NDIS_802_11_LENGTH_SSID);
> +
> +	set_assoc_params(usbdev);
> +
> +	if (!wrqu->essid.flags || length == 0)
> +		return disassociate(usbdev, 1);
> +	else
> +		return set_essid(usbdev, &ssid);
> +}
> +
> +
> +static int rndis_iw_get_essid(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *essid)
> +{
> +	struct NDIS_802_11_SSID ssid;
> +	struct usbnet *usbdev = dev->priv;
> +	int ret;
> +
> +	ret = get_essid(usbdev, &ssid);
> +
> +	if (ret == 0 && le32_to_cpu(ssid.SsidLength) > 0) {
> +		wrqu->essid.flags = 1;
> +		wrqu->essid.length = le32_to_cpu(ssid.SsidLength);
> +		memcpy(essid, ssid.Ssid, wrqu->essid.length);
> +		essid[wrqu->essid.length] = 0;
> +	} else {
> +		memset(essid, 0, sizeof(NDIS_802_11_LENGTH_SSID));
> +		wrqu->essid.flags = 0;
> +		wrqu->essid.length = 0;
> +	}
> +	devdbg(usbdev, "SIOCGIWESSID: %s", essid);
> +	return ret;
> +}
> +
> +
> +static int rndis_iw_get_bssid(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	unsigned char bssid[ETH_ALEN];
> +	int ret;
> +	DECLARE_MAC_BUF(mac);
> +
> +	ret = get_bssid(usbdev, bssid);
> +
> +	if (ret == 0)
> +		devdbg(usbdev, "SIOCGIWAP: %s", print_mac(mac, bssid));
> +	else
> +		devdbg(usbdev, "SIOCGIWAP: <not associated>");
> +
> +	wrqu->ap_addr.sa_family = ARPHRD_ETHER;
> +	memcpy(wrqu->ap_addr.sa_data, bssid, ETH_ALEN);
> +
> +	return ret;
> +}
> +
> +
> +static int rndis_iw_set_bssid(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	u8 *bssid = (u8 *)wrqu->ap_addr.sa_data;
> +	DECLARE_MAC_BUF(mac);
> +	int ret;
> +
> +	devdbg(usbdev, "SIOCSIWAP: %s", print_mac(mac, bssid));
> +
> +	ret = rndis_set_oid(usbdev, OID_802_11_BSSID, bssid, ETH_ALEN);
> +
> +	/* user apps may set ap's mac address, which is not required;
> +	 * they may fail to work if this function fails, so return
> +	 * success */
> +	if (ret)
> +		devwarn(usbdev, "setting AP mac address failed (%08X)", ret);
> +
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_set_auth(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct iw_param *p = &wrqu->param;
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	int ret = -ENOTSUPP;
> +
> +	switch (p->flags & IW_AUTH_INDEX) {
> +	case IW_AUTH_WPA_VERSION:
> +		devdbg(usbdev, "SIOCSIWAUTH: WPA_VERSION, %08x", p->value);
> +		priv->wpa_version = p->value;
> +		ret = 0;
> +		break;
> +
> +	case IW_AUTH_CIPHER_PAIRWISE:
> +		devdbg(usbdev, "SIOCSIWAUTH: CIPHER_PAIRWISE, %08x", p->value);
> +		priv->wpa_cipher_pair = p->value;
> +		ret = 0;
> +		break;
> +
> +	case IW_AUTH_CIPHER_GROUP:
> +		devdbg(usbdev, "SIOCSIWAUTH: CIPHER_GROUP, %08x", p->value);
> +		priv->wpa_cipher_group = p->value;
> +		ret = 0;
> +		break;
> +
> +	case IW_AUTH_KEY_MGMT:
> +		devdbg(usbdev, "SIOCSIWAUTH: KEY_MGMT, %08x", p->value);
> +		priv->wpa_keymgmt = p->value;
> +		ret = 0;
> +		break;
> +
> +	case IW_AUTH_TKIP_COUNTERMEASURES:
> +		devdbg(usbdev, "SIOCSIWAUTH: TKIP_COUNTERMEASURES, %08x",
> +								p->value);
> +		ret = 0;
> +		break;
> +
> +	case IW_AUTH_DROP_UNENCRYPTED:
> +		devdbg(usbdev, "SIOCSIWAUTH: DROP_UNENCRYPTED, %08x", p->value);
> +		ret = 0;
> +		break;
> +
> +	case IW_AUTH_80211_AUTH_ALG:
> +		devdbg(usbdev, "SIOCSIWAUTH: 80211_AUTH_ALG, %08x", p->value);
> +		priv->wpa_authalg = p->value;
> +		ret = 0;
> +		break;
> +
> +	case IW_AUTH_WPA_ENABLED:
> +		devdbg(usbdev, "SIOCSIWAUTH: WPA_ENABLED, %08x", p->value);
> +		if (wrqu->param.value)
> +			deauthenticate(usbdev);
> +		ret = 0;
> +		break;
> +
> +	case IW_AUTH_RX_UNENCRYPTED_EAPOL:
> +		devdbg(usbdev, "SIOCSIWAUTH: RX_UNENCRYPTED_EAPOL, %08x",
> +								p->value);
> +		ret = 0;
> +		break;
> +
> +	case IW_AUTH_ROAMING_CONTROL:
> +		devdbg(usbdev, "SIOCSIWAUTH: ROAMING_CONTROL, %08x", p->value);
> +		ret = 0;
> +		break;
> +
> +	case IW_AUTH_PRIVACY_INVOKED:
> +		devdbg(usbdev, "SIOCSIWAUTH: invalid cmd %d",
> +				wrqu->param.flags & IW_AUTH_INDEX);
> +		return -EOPNOTSUPP;
> +
> +	default:
> +		devdbg(usbdev, "SIOCSIWAUTH: UNKNOWN  %08x, %08x",
> +			p->flags & IW_AUTH_INDEX, p->value);
> +	}
> +	return ret;
> +}
> +
> +
> +static int rndis_iw_get_auth(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct iw_param *p = &wrqu->param;
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +
> +	switch (p->flags & IW_AUTH_INDEX) {
> +	case IW_AUTH_WPA_VERSION:
> +		p->value = priv->wpa_version;
> +		break;
> +	case IW_AUTH_CIPHER_PAIRWISE:
> +		p->value = priv->wpa_cipher_pair;
> +		break;
> +	case IW_AUTH_CIPHER_GROUP:
> +		p->value = priv->wpa_cipher_group;
> +		break;
> +	case IW_AUTH_KEY_MGMT:
> +		p->value = priv->wpa_keymgmt;
> +		break;
> +	case IW_AUTH_80211_AUTH_ALG:
> +		p->value = priv->wpa_authalg;
> +		break;
> +	default:
> +		devdbg(usbdev, "SIOCGIWAUTH: invalid cmd %d",
> +				wrqu->param.flags & IW_AUTH_INDEX);
> +		return -EOPNOTSUPP;
> +	}
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_get_mode(struct net_device *dev,
> +				struct iw_request_info *info,
> +				union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +
> +	switch (priv->infra_mode) {
> +	case Ndis802_11IBSS:
> +		wrqu->mode = IW_MODE_ADHOC;
> +		break;
> +	case Ndis802_11Infrastructure:
> +		wrqu->mode = IW_MODE_INFRA;
> +		break;
> +	/*case Ndis802_11AutoUnknown:*/
> +	default:
> +		wrqu->mode = IW_MODE_AUTO;
> +		break;
> +	}
> +	devdbg(usbdev, "SIOCGIWMODE: %08x", wrqu->mode);
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_set_mode(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	int mode;
> +
> +	devdbg(usbdev, "SIOCSIWMODE: %08x", wrqu->mode);
> +
> +	switch (wrqu->mode) {
> +	case IW_MODE_ADHOC:
> +		mode = Ndis802_11IBSS;
> +		break;
> +	case IW_MODE_INFRA:
> +		mode = Ndis802_11Infrastructure;
> +		break;
> +	/*case IW_MODE_AUTO:*/
> +	default:
> +		mode = Ndis802_11AutoUnknown;
> +		break;
> +	}
> +
> +	return set_infra_mode(usbdev, mode);
> +}
> +
> +
> +static int rndis_iw_set_encode(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	int ret, index, key_len;
> +	u8 *key;
> +
> +	index = (wrqu->encoding.flags & IW_ENCODE_INDEX);
> +
> +	/* iwconfig gives index as 1 - N */
> +	if (index > 0)
> +		index--;
> +	else
> +		index = priv->encr_tx_key_index;
> +
> +	if (index < 0 || index >= 4) {
> +		devwarn(usbdev, "encryption index out of range (%u)", index);
> +		return -EINVAL;
> +	}
> +
> +	/* remove key if disabled */
> +	if (wrqu->data.flags & IW_ENCODE_DISABLED) {
> +		if (remove_key(usbdev, index, NULL))
> +			return -EINVAL;
> +		else
> +			return 0;
> +	}
> +
> +	/* global encryption state (for all keys) */
> +	if (wrqu->data.flags & IW_ENCODE_OPEN)
> +		ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
> +						IW_AUTH_ALG_OPEN_SYSTEM);
> +	else /*if (wrqu->data.flags & IW_ENCODE_RESTRICTED)*/
> +		ret = set_auth_mode(usbdev, IW_AUTH_WPA_VERSION_DISABLED,
> +						IW_AUTH_ALG_SHARED_KEY);
> +	if (ret != 0)
> +		return ret;
> +
> +	if (wrqu->data.length > 0) {
> +		key_len = wrqu->data.length;
> +		key = extra;
> +	} else {
> +		/* must be set as tx key */
> +		if (priv->encr_key_len[index] == 0)
> +			return -EINVAL;
> +		key_len = priv->encr_key_len[index];
> +		key = priv->encr_keys[index];
> +		priv->encr_tx_key_index = index;
> +	}
> +
> +	if (add_wep_key(usbdev, key, key_len, index) != 0)
> +		return -EINVAL;
> +
> +	if (index == priv->encr_tx_key_index)
> +		/* ndis drivers want essid to be set after setting encr */
> +		set_essid(usbdev, &priv->essid);
> +
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_set_encode_ext(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	struct NDIS_802_11_KEY ndis_key;
> +	int i, keyidx, ret;
> +	u8 *addr;
> +
> +	keyidx = wrqu->encoding.flags & IW_ENCODE_INDEX;
> +
> +	/* iwconfig gives index as 1 - N */
> +	if (keyidx)
> +		keyidx--;
> +	else
> +		keyidx = priv->encr_tx_key_index;
> +
> +	if (keyidx < 0 || keyidx >= 4)
> +		return -EINVAL;
> +
> +	if (ext->alg == WPA_ALG_WEP) {
> +		if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
> +			priv->encr_tx_key_index = keyidx;
> +		return add_wep_key(usbdev, ext->key, ext->key_len, keyidx);
> +	}
> +
> +	if ((wrqu->encoding.flags & IW_ENCODE_DISABLED) ||
> +	    ext->alg == IW_ENCODE_ALG_NONE || ext->key_len == 0)
> +		return remove_key(usbdev, keyidx, NULL);
> +
> +	if (ext->key_len > sizeof(ndis_key.KeyMaterial))
> +		return -1;
> +
> +	memset(&ndis_key, 0, sizeof(ndis_key));
> +
> +	ndis_key.Length = cpu_to_le32(sizeof(ndis_key) -
> +				sizeof(ndis_key.KeyMaterial) + ext->key_len);
> +	ndis_key.KeyLength = cpu_to_le32(ext->key_len);
> +	ndis_key.KeyIndex = cpu_to_le32(keyidx);
> +
> +	if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
> +		for (i = 0; i < 6; i++)
> +			ndis_key.KeyRSC |=
> +				cpu_to_le64(ext->rx_seq[i] << (i * 8));
> +		ndis_key.KeyIndex |= cpu_to_le32(1 << 29);
> +	}
> +
> +	addr = ext->addr.sa_data;
> +	if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
> +		/* group key */
> +		if (priv->infra_mode == Ndis802_11IBSS)
> +			memset(ndis_key.Bssid, 0xff, ETH_ALEN);
> +		else
> +			get_bssid(usbdev, ndis_key.Bssid);
> +	} else {
> +		/* pairwise key */
> +		ndis_key.KeyIndex |= cpu_to_le32(1 << 30);
> +		memcpy(ndis_key.Bssid, addr, ETH_ALEN);
> +	}
> +
> +	if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
> +		ndis_key.KeyIndex |= cpu_to_le32(1 << 31);
> +
> +	if (ext->alg == IW_ENCODE_ALG_TKIP && ext->key_len == 32) {
> +		/* wpa_supplicant gives us the Michael MIC RX/TX keys in
> +		 * different order than NDIS spec, so swap the order here. */
> +		memcpy(ndis_key.KeyMaterial, ext->key, 16);
> +		memcpy(ndis_key.KeyMaterial + 16, ext->key + 24, 8);
> +		memcpy(ndis_key.KeyMaterial + 24, ext->key + 16, 8);
> +	} else
> +		memcpy(ndis_key.KeyMaterial, ext->key, ext->key_len);
> +
> +	ret = rndis_set_oid(usbdev, OID_802_11_ADD_KEY, &ndis_key,
> +					le32_to_cpu(ndis_key.Length));
> +	devdbg(usbdev, "SIOCSIWENCODEEXT: OID_802_11_ADD_KEY -> %08X", ret);
> +	if (ret != 0)
> +		return ret;
> +
> +	priv->encr_key_len[keyidx] = ext->key_len;
> +	memcpy(&priv->encr_keys[keyidx], ndis_key.KeyMaterial, ext->key_len);
> +	if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)
> +		priv->encr_tx_key_index = keyidx;
> +
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_set_scan(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct iw_param *param = &wrqu->param;
> +	struct usbnet *usbdev = dev->priv;
> +	union iwreq_data evt;
> +	int ret = -EINVAL;
> +	__le32 tmp;
> +
> +	devdbg(usbdev, "SIOCSIWSCAN");
> +
> +	if (param->flags == 0) {
> +		tmp = ccpu2(1);
> +		ret = rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
> +								sizeof(tmp));
> +		evt.data.flags = 0;
> +		evt.data.length = 0;
> +		wireless_send_event(dev, SIOCGIWSCAN, &evt, NULL);
> +	}
> +	return ret;
> +}
> +
> +
> +static char *rndis_translate_scan(struct net_device *dev,
> +    char *cev, char *end_buf, struct NDIS_WLAN_BSSID_EX *bssid)
> +{
> +#ifdef DEBUG
> +	struct usbnet *usbdev = dev->priv;
> +#endif
> +	struct ieee80211_info_element *ie;
> +	char *current_val;
> +	int bssid_len, ie_len, i;
> +	u32 beacon, atim;
> +	struct iw_event iwe;
> +	unsigned char sbuf[32];
> +	DECLARE_MAC_BUF(mac);
> +
> +	bssid_len = le32_to_cpu(bssid->Length);
> +
> +	devdbg(usbdev, "BSSID %s", print_mac(mac, bssid->MacAddress));
> +	iwe.cmd = SIOCGIWAP;
> +	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
> +	memcpy(iwe.u.ap_addr.sa_data, bssid->MacAddress, ETH_ALEN);
> +	cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN);
> +
> +	devdbg(usbdev, "SSID(%d) %s",
> +		le32_to_cpu(bssid->Ssid.SsidLength),
> +		bssid->Ssid.Ssid);
> +	iwe.cmd = SIOCGIWESSID;
> +	iwe.u.essid.length = le32_to_cpu(bssid->Ssid.SsidLength);
> +	iwe.u.essid.flags = 1;
> +	cev = iwe_stream_add_point(cev, end_buf, &iwe,
> +						bssid->Ssid.Ssid);
> +
> +	devdbg(usbdev, "MODE %d",
> +			le32_to_cpu(bssid->InfrastructureMode));
> +	iwe.cmd = SIOCGIWMODE;
> +	switch (le32_to_cpu(bssid->InfrastructureMode)) {
> +	case Ndis802_11IBSS:
> +		iwe.u.mode = IW_MODE_ADHOC;
> +		break;
> +	case Ndis802_11Infrastructure:
> +		iwe.u.mode = IW_MODE_INFRA;
> +		break;
> +	/*case Ndis802_11AutoUnknown:*/
> +	default:
> +		iwe.u.mode = IW_MODE_AUTO;
> +		break;
> +	}
> +	cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN);
> +
> +	devdbg(usbdev, "FREQ %d kHz",
> +		le32_to_cpu(bssid->Configuration.DSConfig));
> +	iwe.cmd = SIOCGIWFREQ;
> +	dsconfig_to_freq(le32_to_cpu(bssid->Configuration.DSConfig),
> +								&iwe.u.freq);
> +	cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN);
> +
> +	devdbg(usbdev, "QUAL %d", le32_to_cpu(bssid->Rssi));
> +	iwe.cmd = IWEVQUAL;
> +	iwe.u.qual.qual  = level_to_qual(le32_to_cpu(bssid->Rssi));
> +	iwe.u.qual.level = le32_to_cpu(bssid->Rssi);
> +	iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED
> +			| IW_QUAL_LEVEL_UPDATED
> +			| IW_QUAL_NOISE_INVALID;
> +	cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN);
> +
> +	devdbg(usbdev, "ENCODE %d", le32_to_cpu(bssid->Privacy));
> +	iwe.cmd = SIOCGIWENCODE;
> +	iwe.u.data.length = 0;
> +	if (le32_to_cpu(bssid->Privacy) == Ndis802_11PrivFilterAcceptAll)
> +		iwe.u.data.flags = IW_ENCODE_DISABLED;
> +	else
> +		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
> +
> +	cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL);
> +
> +	devdbg(usbdev, "RATES:");
> +	current_val = cev + IW_EV_LCP_LEN;
> +	iwe.cmd = SIOCGIWRATE;
> +	for (i = 0; i < sizeof(bssid->SupportedRates); i++) {
> +		if (bssid->SupportedRates[i] & 0x7f) {
> +			iwe.u.bitrate.value =
> +				((bssid->SupportedRates[i] & 0x7f) *
> +				500000);
> +			devdbg(usbdev, " %d", iwe.u.bitrate.value);
> +			current_val = iwe_stream_add_value(cev,
> +				current_val, end_buf, &iwe,
> +				IW_EV_PARAM_LEN);
> +		}
> +	}
> +
> +	if ((current_val - cev) > IW_EV_LCP_LEN)
> +		cev = current_val;
> +
> +	beacon = le32_to_cpu(bssid->Configuration.BeaconPeriod);
> +	devdbg(usbdev, "BCN_INT %d", beacon);
> +	iwe.cmd = IWEVCUSTOM;
> +	snprintf(sbuf, sizeof(sbuf), "bcn_int=%d", beacon);
> +	iwe.u.data.length = strlen(sbuf);
> +	cev = iwe_stream_add_point(cev, end_buf, &iwe, sbuf);
> +
> +	atim = le32_to_cpu(bssid->Configuration.ATIMWindow);
> +	devdbg(usbdev, "ATIM %d", atim);
> +	iwe.cmd = IWEVCUSTOM;
> +	snprintf(sbuf, sizeof(sbuf), "atim=%u", atim);
> +	iwe.u.data.length = strlen(sbuf);
> +	cev = iwe_stream_add_point(cev, end_buf, &iwe, sbuf);
> +
> +	ie = (void *)(bssid->IEs + sizeof(struct NDIS_802_11_FIXED_IEs));
> +	ie_len = min(bssid_len - (int)sizeof(*bssid),
> +					(int)le32_to_cpu(bssid->IELength));
> +	ie_len -= sizeof(struct NDIS_802_11_FIXED_IEs);
> +	while (ie_len >= sizeof(*ie) && sizeof(*ie) + ie->len <= ie_len) {
> +		if ((ie->id == MFIE_TYPE_GENERIC && ie->len >= 4 &&
> +				memcmp(ie->data, "\x00\x50\xf2\x01", 4) == 0) ||
> +				ie->id == MFIE_TYPE_RSN) {
> +			devdbg(usbdev, "IE: WPA%d",
> +					(ie->id == MFIE_TYPE_RSN) ? 2 : 1);
> +			iwe.cmd = IWEVGENIE;
> +			iwe.u.data.length = min(ie->len + 2, MAX_WPA_IE_LEN);
> +			cev = iwe_stream_add_point(cev, end_buf, &iwe,
> +								(u8 *)ie);
> +		}
> +
> +		ie_len -= sizeof(*ie) + ie->len;
> +		ie = (struct ieee80211_info_element *)&ie->data[ie->len];
> +	}
> +
> +	return cev;
> +}
> +
> +
> +static int rndis_iw_get_scan(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	void *buf = NULL;
> +	char *cev = extra;
> +	struct NDIS_802_11_BSSID_LIST_EX *bssid_list;
> +	struct NDIS_WLAN_BSSID_EX *bssid;
> +	int ret = -EINVAL, len, count, bssid_len;
> +
> +	devdbg(usbdev, "SIOCGIWSCAN");
> +
> +	len = CONTROL_BUFFER_SIZE;
> +	buf = kmalloc(len, GFP_KERNEL);
> +	if (!buf) {
> +		ret = -ENOMEM;
> +		goto out;
> +	}
> +
> +	ret = rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
> +
> +	if (ret != 0)
> +		goto out;
> +
> +	bssid_list = buf;
> +	bssid = bssid_list->Bssid;
> +	bssid_len = le32_to_cpu(bssid->Length);
> +	count = le32_to_cpu(bssid_list->NumberOfItems);
> +	devdbg(usbdev, "SIOCGIWSCAN: %d BSSIDs found", count);
> +
> +	while (count && ((void *)bssid + bssid_len) <= (buf + len)) {
> +		cev = rndis_translate_scan(dev, cev, extra + IW_SCAN_MAX_DATA,
> +									bssid);
> +		bssid = (void *)bssid + bssid_len;
> +		bssid_len = le32_to_cpu(bssid->Length);
> +		count--;
> +	}
> +
> +out:
> +	wrqu->data.length = cev - extra;
> +	wrqu->data.flags = 0;
> +	kfree(buf);
> +	return ret;
> +}
> +
> +
> +static int rndis_iw_set_genie(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	int ret = 0;
> +
> +#ifdef DEBUG
> +	int j;
> +	u8 *gie = extra;
> +	for (j = 0; j < wrqu->data.length; j += 8)
> +		devdbg(usbdev,
> +			"SIOCSIWGENIE %04x - "
> +			"%02x %02x %02x %02x %02x %02x %02x %02x", j,
> +			gie[j + 0], gie[j + 1], gie[j + 2], gie[j + 3],
> +			gie[j + 4], gie[j + 5], gie[j + 6], gie[j + 7]);
> +#endif
> +	/* clear existing IEs */
> +	if (priv->wpa_ie_len) {
> +		kfree(priv->wpa_ie);
> +		priv->wpa_ie_len = 0;
> +	}
> +
> +	/* set new IEs */
> +	priv->wpa_ie = kmalloc(wrqu->data.length, GFP_KERNEL);
> +	if (priv->wpa_ie) {
> +		priv->wpa_ie_len = wrqu->data.length;
> +		memcpy(priv->wpa_ie, extra, priv->wpa_ie_len);
> +	} else
> +		ret = -ENOMEM;
> +	return ret;
> +}
> +
> +
> +static int rndis_iw_get_genie(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +
> +	devdbg(usbdev, "SIOCGIWGENIE");
> +
> +	if (priv->wpa_ie_len == 0 || priv->wpa_ie == NULL) {
> +		wrqu->data.length = 0;
> +		return 0;
> +	}
> +
> +	if (wrqu->data.length < priv->wpa_ie_len)
> +		return -E2BIG;
> +
> +	wrqu->data.length = priv->wpa_ie_len;
> +	memcpy(extra, priv->wpa_ie, priv->wpa_ie_len);
> +
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_set_rts(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	__le32 tmp;
> +	devdbg(usbdev, "SIOCSIWRTS");
> +
> +	tmp = cpu_to_le32(wrqu->rts.value);
> +	return rndis_set_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp,
> +								sizeof(tmp));
> +}
> +
> +
> +static int rndis_iw_get_rts(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	__le32 tmp;
> +	int len, ret;
> +
> +	len = sizeof(tmp);
> +	ret = rndis_query_oid(usbdev, OID_802_11_RTS_THRESHOLD, &tmp, &len);
> +	if (ret == 0) {
> +		wrqu->rts.value = le32_to_cpu(tmp);
> +		wrqu->rts.flags = 1;
> +		wrqu->rts.disabled = 0;
> +	}
> +
> +	devdbg(usbdev, "SIOCGIWRTS: %d", wrqu->rts.value);
> +
> +	return ret;
> +}
> +
> +
> +static int rndis_iw_set_frag(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	__le32 tmp;
> +
> +	devdbg(usbdev, "SIOCSIWFRAG");
> +
> +	tmp = cpu_to_le32(wrqu->frag.value);
> +	return rndis_set_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
> +								sizeof(tmp));
> +}
> +
> +
> +static int rndis_iw_get_frag(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	__le32 tmp;
> +	int len, ret;
> +
> +	len = sizeof(tmp);
> +	ret = rndis_query_oid(usbdev, OID_802_11_FRAGMENTATION_THRESHOLD, &tmp,
> +									&len);
> +	if (ret == 0) {
> +		wrqu->frag.value = le32_to_cpu(tmp);
> +		wrqu->frag.flags = 1;
> +		wrqu->frag.disabled = 0;
> +	}
> +	devdbg(usbdev, "SIOCGIWFRAG: %d", wrqu->frag.value);
> +	return ret;
> +}
> +
> +
> +static int rndis_iw_set_nick(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +
> +	devdbg(usbdev, "SIOCSIWNICK");
> +
> +	priv->nick_len = wrqu->data.length;
> +	if (priv->nick_len > 32)
> +		priv->nick_len = 32;
> +
> +	memcpy(priv->nick, extra, priv->nick_len);
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_get_nick(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +
> +	wrqu->data.flags = 1;
> +	wrqu->data.length = priv->nick_len;
> +	memcpy(extra, priv->nick, priv->nick_len);
> +
> +	devdbg(usbdev, "SIOCGIWNICK: '%s'", priv->nick);
> +
> +	return 0;
> +}
> +
> +
> +static int rndis_iw_set_freq(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct NDIS_802_11_CONFIGURATION config;
> +	unsigned int dsconfig;
> +	int len, ret;
> +
> +	/* this OID is valid only when not associated */
> +	if (is_associated(usbdev))
> +		return 0;
> +
> +	dsconfig = 0;
> +	if (freq_to_dsconfig(&wrqu->freq, &dsconfig))
> +		return -EINVAL;
> +
> +	len = sizeof(config);
> +	ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
> +	if (ret != 0) {
> +		devdbg(usbdev, "SIOCSIWFREQ: querying configuration failed");
> +		return 0;
> +	}
> +
> +	config.DSConfig = cpu_to_le32(dsconfig);
> +
> +	devdbg(usbdev, "SIOCSIWFREQ: %d * 10^%d", wrqu->freq.m, wrqu->freq.e);
> +	return rndis_set_oid(usbdev, OID_802_11_CONFIGURATION, &config,
> +								sizeof(config));
> +}
> +
> +
> +static int rndis_iw_get_freq(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct NDIS_802_11_CONFIGURATION config;
> +	int len, ret;
> +
> +	len = sizeof(config);
> +	ret = rndis_query_oid(usbdev, OID_802_11_CONFIGURATION, &config, &len);
> +	if (ret == 0)
> +		dsconfig_to_freq(le32_to_cpu(config.DSConfig), &wrqu->freq);
> +
> +	devdbg(usbdev, "SIOCGIWFREQ: %d", wrqu->freq.m);
> +	return ret;
> +}
> +
> +
> +static int rndis_iw_get_txpower(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	__le32 tx_power;
> +	int ret = 0, len;
> +
> +	if (priv->radio_on) {
> +		if (priv->caps & CAP_SUPPORT_TXPOWER) {
> +			len = sizeof(tx_power);
> +			ret = rndis_query_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
> +							&tx_power, &len);
> +			if (ret != 0)
> +				return ret;
> +		} else
> +			/* fake incase not supported */
> +			tx_power = cpu_to_le32(get_bcm4320_power(priv));
> +
> +		wrqu->txpower.flags = IW_TXPOW_MWATT;
> +		wrqu->txpower.value = le32_to_cpu(tx_power);
> +		wrqu->txpower.disabled = 0;
> +	} else {
> +		wrqu->txpower.flags = IW_TXPOW_MWATT;
> +		wrqu->txpower.value = 0;
> +		wrqu->txpower.disabled = 1;
> +	}
> +
> +	devdbg(usbdev, "SIOCGIWTXPOW: %d", wrqu->txpower.value);
> +
> +	return ret;
> +}
> +
> +
> +static int rndis_iw_set_txpower(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	__le32 tx_power = 0;
> +	int ret = 0;
> +
> +	if (!wrqu->txpower.disabled) {
> +		if (wrqu->txpower.flags == IW_TXPOW_MWATT)
> +			tx_power = cpu_to_le32(wrqu->txpower.value);
> +		else { /* wrqu->txpower.flags == IW_TXPOW_DBM */
> +			if (wrqu->txpower.value > 20)
> +				tx_power = cpu_to_le32(128);
> +			else if (wrqu->txpower.value < -43)
> +				tx_power = cpu_to_le32(127);
> +			else {
> +				signed char tmp;
> +				tmp = wrqu->txpower.value;
> +				tmp = -12 - tmp;
> +				tmp <<= 2;
> +				tx_power = cpu_to_le32((unsigned char)tmp);
> +			}
> +		}
> +	}
> +
> +	devdbg(usbdev, "SIOCSIWTXPOW: %d", le32_to_cpu(tx_power));
> +
> +	if (le32_to_cpu(tx_power) != 0) {
> +		if (priv->caps & CAP_SUPPORT_TXPOWER) {
> +			/* turn radio on first */
> +			if (!priv->radio_on)
> +				disassociate(usbdev, 1);
> +
> +			ret = rndis_set_oid(usbdev, OID_802_11_TX_POWER_LEVEL,
> +						&tx_power, sizeof(tx_power));
> +			if (ret != 0)
> +				ret = -EOPNOTSUPP;
> +			return ret;
> +		} else {
> +			/* txpower unsupported, just turn radio on */
> +			if (!priv->radio_on)
> +				return disassociate(usbdev, 1);
> +			return 0; /* all ready on */
> +		}
> +	}
> +
> +	/* tx_power == 0, turn off radio */
> +	return disassociate(usbdev, 0);
> +}
> +
> +
> +static int rndis_iw_get_rate(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	__le32 tmp;
> +	int ret, len;
> +
> +	len = sizeof(tmp);
> +	ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
> +	if (ret == 0) {
> +		wrqu->bitrate.value = le32_to_cpu(tmp) * 100;
> +		wrqu->bitrate.disabled = 0;
> +		wrqu->bitrate.flags = 1;
> +	}
> +	return ret;
> +}
> +
> +
> +static int rndis_iw_set_mlme(struct net_device *dev,
> +    struct iw_request_info *info, union iwreq_data *wrqu, char *extra)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	struct iw_mlme *mlme = (struct iw_mlme *)extra;
> +	unsigned char bssid[ETH_ALEN];
> +
> +	get_bssid(usbdev, bssid);
> +
> +	if (memcmp(bssid, mlme->addr.sa_data, ETH_ALEN))
> +		return -EINVAL;
> +
> +	switch (mlme->cmd) {
> +	case IW_MLME_DEAUTH:
> +		return deauthenticate(usbdev);
> +	case IW_MLME_DISASSOC:
> +		return disassociate(usbdev, priv->radio_on);
> +	default:
> +		return -EOPNOTSUPP;
> +	}
> +
> +	return 0;
> +}
> +
> +
> +static struct iw_statistics *rndis_get_wireless_stats(struct net_device *dev)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +	unsigned long flags;
> +
> +	spin_lock_irqsave(&priv->stats_lock, flags);
> +	memcpy(&priv->iwstats, &priv->privstats, sizeof(priv->iwstats));
> +	spin_unlock_irqrestore(&priv->stats_lock, flags);
> +
> +	return &priv->iwstats;
> +}
> +
> +
> +#define IW_IOCTL(x) [(x) - SIOCSIWCOMMIT]
> +static const iw_handler rndis_iw_handler[] =
> +{
> +	IW_IOCTL(SIOCSIWCOMMIT)    = rndis_iw_commit,
> +	IW_IOCTL(SIOCGIWNAME)      = rndis_iw_get_name,
> +	IW_IOCTL(SIOCSIWFREQ)      = rndis_iw_set_freq,
> +	IW_IOCTL(SIOCGIWFREQ)      = rndis_iw_get_freq,
> +	IW_IOCTL(SIOCSIWMODE)      = rndis_iw_set_mode,
> +	IW_IOCTL(SIOCGIWMODE)      = rndis_iw_get_mode,
> +	IW_IOCTL(SIOCGIWRANGE)     = rndis_iw_get_range,
> +	IW_IOCTL(SIOCSIWAP)        = rndis_iw_set_bssid,
> +	IW_IOCTL(SIOCGIWAP)        = rndis_iw_get_bssid,
> +	IW_IOCTL(SIOCSIWSCAN)      = rndis_iw_set_scan,
> +	IW_IOCTL(SIOCGIWSCAN)      = rndis_iw_get_scan,
> +	IW_IOCTL(SIOCSIWESSID)     = rndis_iw_set_essid,
> +	IW_IOCTL(SIOCGIWESSID)     = rndis_iw_get_essid,
> +	IW_IOCTL(SIOCSIWNICKN)     = rndis_iw_set_nick,
> +	IW_IOCTL(SIOCGIWNICKN)     = rndis_iw_get_nick,
> +	IW_IOCTL(SIOCGIWRATE)      = rndis_iw_get_rate,
> +	IW_IOCTL(SIOCSIWRTS)       = rndis_iw_set_rts,
> +	IW_IOCTL(SIOCGIWRTS)       = rndis_iw_get_rts,
> +	IW_IOCTL(SIOCSIWFRAG)      = rndis_iw_set_frag,
> +	IW_IOCTL(SIOCGIWFRAG)      = rndis_iw_get_frag,
> +	IW_IOCTL(SIOCSIWTXPOW)     = rndis_iw_set_txpower,
> +	IW_IOCTL(SIOCGIWTXPOW)     = rndis_iw_get_txpower,
> +	IW_IOCTL(SIOCSIWENCODE)    = rndis_iw_set_encode,
> +	IW_IOCTL(SIOCSIWENCODEEXT) = rndis_iw_set_encode_ext,
> +	IW_IOCTL(SIOCSIWAUTH)      = rndis_iw_set_auth,
> +	IW_IOCTL(SIOCGIWAUTH)      = rndis_iw_get_auth,
> +	IW_IOCTL(SIOCSIWGENIE)     = rndis_iw_set_genie,
> +	IW_IOCTL(SIOCGIWGENIE)     = rndis_iw_get_genie,
> +	IW_IOCTL(SIOCSIWMLME)      = rndis_iw_set_mlme,
> +};
> +
> +static const iw_handler rndis_wext_private_handler[] = {
> +};
> +
> +static const struct iw_priv_args rndis_wext_private_args[] = {
> +};
> +
> +
> +static const struct iw_handler_def rndis_iw_handlers = {
> +	.num_standard = ARRAY_SIZE(rndis_iw_handler),
> +	.num_private  = ARRAY_SIZE(rndis_wext_private_handler),
> +	.num_private_args = ARRAY_SIZE(rndis_wext_private_args),
> +	.standard = (iw_handler *)rndis_iw_handler,
> +	.private  = (iw_handler *)rndis_wext_private_handler,
> +	.private_args = (struct iw_priv_args *)rndis_wext_private_args,
> +	.get_wireless_stats = rndis_get_wireless_stats,
> +};
> +
> +
> +static void rndis_wext_worker(struct work_struct *work)
> +{
> +	struct rndis_wext_private *priv =
> +		container_of(work, struct rndis_wext_private, work);
> +	struct usbnet *usbdev = priv->usbdev;
> +	union iwreq_data evt;
> +	unsigned char bssid[ETH_ALEN];
> +	int ret;
> +
> +	if (test_and_clear_bit(WORK_CONNECTION_EVENT, &priv->work_pending)) {
> +		ret = get_bssid(usbdev, bssid);
> +
> +		if (!ret) {
> +			evt.data.flags = 0;
> +			evt.data.length = 0;
> +			memcpy(evt.ap_addr.sa_data, bssid, ETH_ALEN);
> +			wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL);
> +		}
> +	}
> +
> +	if (test_and_clear_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending))
> +		set_multicast_list(usbdev);
> +}
> +
> +static void rndis_wext_set_multicast_list(struct net_device *dev)
> +{
> +	struct usbnet *usbdev = dev->priv;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(usbdev);
> +
> +	set_bit(WORK_SET_MULTICAST_LIST, &priv->work_pending);
> +	queue_work(priv->workqueue, &priv->work);
> +}
> +
> +static void rndis_wext_link_change(struct usbnet *dev, int state)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
> +	union iwreq_data evt;
> +
> +	if (state) {
> +		/* queue work to avoid recursive calls into rndis_command */
> +		set_bit(WORK_CONNECTION_EVENT, &priv->work_pending);
> +		queue_work(priv->workqueue, &priv->work);
> +	} else {
> +		evt.data.flags = 0;
> +		evt.data.length = 0;
> +		memset(evt.ap_addr.sa_data, 0, ETH_ALEN);
> +		wireless_send_event(dev->net, SIOCGIWAP, &evt, NULL);
> +	}
> +}
> +
> +
> +static int rndis_wext_get_caps(struct usbnet *dev)
> +{
> +	struct {
> +		__le32	num_items;
> +		__le32	items[8];
> +	} networks_supported;
> +	int len, retval, i, n;
> +	__le32 tx_power;
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
> +
> +	/* determine if supports setting txpower */
> +	len = sizeof(tx_power);
> +	retval = rndis_query_oid(dev, OID_802_11_TX_POWER_LEVEL, &tx_power,
> +								&len);
> +	if (retval == 0 && le32_to_cpu(tx_power) != 0xFF)
> +		priv->caps |= CAP_SUPPORT_TXPOWER;
> +
> +	/* determine supported modes */
> +	len = sizeof(networks_supported);
> +	retval = rndis_query_oid(dev, OID_802_11_NETWORK_TYPES_SUPPORTED,
> +						&networks_supported, &len);
> +	if (retval >= 0) {
> +		n = le32_to_cpu(networks_supported.num_items);
> +		if (n > 8)
> +			n = 8;
> +		for (i = 0; i < n; i++) {
> +			switch (le32_to_cpu(networks_supported.items[i])) {
> +			case Ndis802_11FH:
> +			case Ndis802_11DS:
> +				priv->caps |= CAP_MODE_80211B;
> +				break;
> +			case Ndis802_11OFDM5:
> +				priv->caps |= CAP_MODE_80211A;
> +				break;
> +			case Ndis802_11OFDM24:
> +				priv->caps |= CAP_MODE_80211G;
> +				break;
> +			}
> +		}
> +		if (priv->caps & CAP_MODE_80211A)
> +			strcat(priv->name, "a");
> +		if (priv->caps & CAP_MODE_80211B)
> +			strcat(priv->name, "b");
> +		if (priv->caps & CAP_MODE_80211G)
> +			strcat(priv->name, "g");
> +	}
> +
> +	return retval;
> +}
> +
> +
> +#define STATS_UPDATE_JIFFIES (HZ)
> +static void rndis_update_wireless_stats(struct work_struct *work)
> +{
> +	struct rndis_wext_private *priv =
> +		container_of(work, struct rndis_wext_private, stats_work.work);
> +	struct usbnet *usbdev = priv->usbdev;
> +	struct iw_statistics iwstats;
> +	__le32 rssi, tmp;
> +	int len, ret, bitrate, j;
> +	unsigned long flags;
> +	int update_jiffies = STATS_UPDATE_JIFFIES;
> +	void *buf;
> +
> +	spin_lock_irqsave(&priv->stats_lock, flags);
> +	memcpy(&iwstats, &priv->privstats, sizeof(iwstats));
> +	spin_unlock_irqrestore(&priv->stats_lock, flags);
> +
> +	/* only update stats when connected */
> +	if (!is_associated(usbdev)) {
> +		iwstats.qual.qual = 0;
> +		iwstats.qual.level = 0;
> +		iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
> +				| IW_QUAL_LEVEL_UPDATED
> +				| IW_QUAL_NOISE_INVALID
> +				| IW_QUAL_QUAL_INVALID
> +				| IW_QUAL_LEVEL_INVALID;
> +		goto end;
> +	}
> +
> +	len = sizeof(rssi);
> +	ret = rndis_query_oid(usbdev, OID_802_11_RSSI, &rssi, &len);
> +
> +	devdbg(usbdev, "stats: OID_802_11_RSSI -> %d, rssi:%d", ret,
> +							le32_to_cpu(rssi));
> +	if (ret == 0) {
> +		memset(&iwstats.qual, 0, sizeof(iwstats.qual));
> +		iwstats.qual.qual  = level_to_qual(le32_to_cpu(rssi));
> +		iwstats.qual.level = le32_to_cpu(rssi);
> +		iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
> +				| IW_QUAL_LEVEL_UPDATED
> +				| IW_QUAL_NOISE_INVALID;
> +	}
> +
> +	memset(&iwstats.discard, 0, sizeof(iwstats.discard));
> +
> +	len = sizeof(tmp);
> +	ret = rndis_query_oid(usbdev, OID_GEN_XMIT_ERROR, &tmp, &len);
> +	if (ret == 0)
> +		iwstats.discard.misc += le32_to_cpu(tmp);
> +
> +	len = sizeof(tmp);
> +	ret = rndis_query_oid(usbdev, OID_GEN_RCV_ERROR, &tmp, &len);
> +	if (ret == 0)
> +		iwstats.discard.misc += le32_to_cpu(tmp);
> +
> +	len = sizeof(tmp);
> +	ret = rndis_query_oid(usbdev, OID_GEN_RCV_NO_BUFFER, &tmp, &len);
> +	if (ret == 0)
> +		iwstats.discard.misc += le32_to_cpu(tmp);
> +
> +	/* Workaround transfer stalls on poor quality links. */
> +	len = sizeof(tmp);
> +	ret = rndis_query_oid(usbdev, OID_GEN_LINK_SPEED, &tmp, &len);
> +	if (ret == 0) {
> +		bitrate = le32_to_cpu(tmp) * 100;
> +		if (bitrate > 11000000)
> +			goto end;
> +
> +		/* Decrease stats worker interval to catch stalls.
> +		 * faster. Faster than 400-500ms causes packet loss,
> +		 * Slower doesn't catch stalls fast enough.
> +		 */
> +		j = msecs_to_jiffies(priv->param_workaround_interval);
> +		if (j > STATS_UPDATE_JIFFIES)
> +			j = STATS_UPDATE_JIFFIES;
> +		else if (j <= 0)
> +			j = 1;
> +		update_jiffies = j;
> +
> +		/* Send scan OID. Use of both OIDs is required to get device
> +		 * working.
> +		 */
> +		tmp = ccpu2(1);
> +		rndis_set_oid(usbdev, OID_802_11_BSSID_LIST_SCAN, &tmp,
> +								sizeof(tmp));
> +
> +		len = CONTROL_BUFFER_SIZE;
> +		buf = kmalloc(len, GFP_KERNEL);
> +		if (!buf)
> +			goto end;
> +
> +		rndis_query_oid(usbdev, OID_802_11_BSSID_LIST, buf, &len);
> +		kfree(buf);
> +	}
> +end:
> +	spin_lock_irqsave(&priv->stats_lock, flags);
> +	memcpy(&priv->privstats, &iwstats, sizeof(iwstats));
> +	spin_unlock_irqrestore(&priv->stats_lock, flags);
> +
> +	if (update_jiffies >= HZ)
> +		update_jiffies = round_jiffies_relative(update_jiffies);
> +	else {
> +		j = round_jiffies_relative(update_jiffies);
> +		if (abs(j - update_jiffies) <= 10)
> +			update_jiffies = j;
> +	}
> +
> +	queue_delayed_work(priv->workqueue, &priv->stats_work, update_jiffies);
> +}
> +
> +
> +static int bcm4320_early_init(struct usbnet *dev)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
> +	char buf[8];
> +
> +	/* Early initialization settings, setting these won't have effect
> +	 * if called after generic_rndis_bind().
> +	 */
> +
> +	priv->param_country[0] = modparam_country[0];
> +	priv->param_country[1] = modparam_country[1];
> +	priv->param_country[2] = 0;
> +	priv->param_frameburst   = modparam_frameburst;
> +	priv->param_afterburner  = modparam_afterburner;
> +	priv->param_power_save   = modparam_power_save;
> +	priv->param_power_output = modparam_power_output;
> +	priv->param_roamtrigger  = modparam_roamtrigger;
> +	priv->param_roamdelta    = modparam_roamdelta;
> +	priv->param_workaround_interval = modparam_workaround_interval;
> +
> +	priv->param_country[0] = toupper(priv->param_country[0]);
> +	priv->param_country[1] = toupper(priv->param_country[1]);
> +	/* doesn't support EU as country code, use FI instead */
> +	if (!strcmp(priv->param_country, "EU"))
> +		strcpy(priv->param_country, "FI");
> +
> +	if (priv->param_power_save < 0)
> +		priv->param_power_save = 0;
> +	else if (priv->param_power_save > 2)
> +		priv->param_power_save = 2;
> +
> +	if (priv->param_roamtrigger < -80)
> +		priv->param_roamtrigger = -80;
> +	else if (priv->param_roamtrigger > -60)
> +		priv->param_roamtrigger = -60;
> +
> +	if (priv->param_roamdelta < 0)
> +		priv->param_roamdelta = 0;
> +	else if (priv->param_roamdelta > 2)
> +		priv->param_roamdelta = 2;
> +
> +	if (priv->param_workaround_interval < 0)
> +		priv->param_workaround_interval = 500;
> +
> +	rndis_set_config_parameter_str(dev, "Country", priv->param_country);
> +	rndis_set_config_parameter_str(dev, "FrameBursting",
> +					priv->param_frameburst ? "1" : "0");
> +	rndis_set_config_parameter_str(dev, "Afterburner",
> +					priv->param_afterburner ? "1" : "0");
> +	sprintf(buf, "%d", priv->param_power_save);
> +	rndis_set_config_parameter_str(dev, "PowerSaveMode", buf);
> +	sprintf(buf, "%d", priv->param_power_output);
> +	rndis_set_config_parameter_str(dev, "PwrOut", buf);
> +	sprintf(buf, "%d", priv->param_roamtrigger);
> +	rndis_set_config_parameter_str(dev, "RoamTrigger", buf);
> +	sprintf(buf, "%d", priv->param_roamdelta);
> +	rndis_set_config_parameter_str(dev, "RoamDelta", buf);
> +
> +	return 0;
> +}
> +
> +
> +static int rndis_wext_bind(struct usbnet *dev, struct usb_interface *intf)
> +{
> +	struct net_device *net = dev->net;
> +	struct rndis_wext_private *priv;
> +	int retval, len;
> +	__le32 tmp;
> +
> +	/* allocate rndis private data */
> +	priv = kmalloc(sizeof(struct rndis_wext_private), GFP_KERNEL);
> +	if (!priv)
> +		return -ENOMEM;
> +
> +	/* These have to be initialized before calling generic_rndis_bind().
> +	 * Otherwise we'll be in big trouble in rndis_wext_early_init().
> +	 */
> +	dev->driver_priv = priv;
> +	memset(priv, 0, sizeof(*priv));
> +	memset(priv->name, 0, sizeof(priv->name));
> +	strcpy(priv->name, "IEEE802.11");
> +	net->wireless_handlers = &rndis_iw_handlers;
> +	priv->usbdev = dev;
> +
> +	mutex_init(&priv->command_lock);
> +	spin_lock_init(&priv->stats_lock);
> +
> +	/* try bind rndis_host */
> +	retval = generic_rndis_bind(dev, intf, FLAG_RNDIS_PHYM_WIRELESS);
> +	if (retval < 0)
> +		goto fail;
> +
> +	/* generic_rndis_bind set packet filter to multicast_all+
> +	 * promisc mode which doesn't work well for our devices (device
> +	 * picks up rssi to closest station instead of to access point).
> +	 *
> +	 * rndis_host wants to avoid all OID as much as possible
> +	 * so do promisc/multicast handling in rndis_wext.
> +	 */
> +	dev->net->set_multicast_list = rndis_wext_set_multicast_list;
> +	tmp = RNDIS_PACKET_TYPE_DIRECTED | RNDIS_PACKET_TYPE_BROADCAST;
> +	retval = rndis_set_oid(dev, OID_GEN_CURRENT_PACKET_FILTER, &tmp,
> +								sizeof(tmp));
> +
> +	len = sizeof(tmp);
> +	retval = rndis_query_oid(dev, OID_802_3_MAXIMUM_LIST_SIZE, &tmp, &len);
> +	priv->multicast_size = le32_to_cpu(tmp);
> +	if (retval < 0 || priv->multicast_size < 0)
> +		priv->multicast_size = 0;
> +	if (priv->multicast_size > 0)
> +		dev->net->flags |= IFF_MULTICAST;
> +	else
> +		dev->net->flags &= ~IFF_MULTICAST;
> +
> +	priv->iwstats.qual.qual = 0;
> +	priv->iwstats.qual.level = 0;
> +	priv->iwstats.qual.updated = IW_QUAL_QUAL_UPDATED
> +					| IW_QUAL_LEVEL_UPDATED
> +					| IW_QUAL_NOISE_INVALID
> +					| IW_QUAL_QUAL_INVALID
> +					| IW_QUAL_LEVEL_INVALID;
> +
> +	rndis_wext_get_caps(dev);
> +	set_default_iw_params(dev);
> +
> +	/* turn radio on */
> +	priv->radio_on = 1;
> +	disassociate(dev, 1);
> +
> +	/* because rndis_command() sleeps we need to use workqueue */
> +	priv->workqueue = create_singlethread_workqueue("rndis_wlan");
> +	INIT_DELAYED_WORK(&priv->stats_work, rndis_update_wireless_stats);
> +	queue_delayed_work(priv->workqueue, &priv->stats_work,
> +		round_jiffies_relative(STATS_UPDATE_JIFFIES));
> +	INIT_WORK(&priv->work, rndis_wext_worker);
> +
> +	return 0;
> +
> +fail:
> +	kfree(priv);
> +	return retval;
> +}
> +
> +
> +static void rndis_wext_unbind(struct usbnet *dev, struct usb_interface *intf)
> +{
> +	struct rndis_wext_private *priv = get_rndis_wext_priv(dev);
> +
> +	/* turn radio off */
> +	disassociate(dev, 0);
> +
> +	cancel_delayed_work_sync(&priv->stats_work);
> +	cancel_work_sync(&priv->work);
> +	flush_workqueue(priv->workqueue);
> +	destroy_workqueue(priv->workqueue);
> +
> +	if (priv && priv->wpa_ie_len)
> +		kfree(priv->wpa_ie);
> +	kfree(priv);
> +
> +	rndis_unbind(dev, intf);
> +}
> +
> +
> +static int rndis_wext_reset(struct usbnet *dev)
> +{
> +	return deauthenticate(dev);
> +}
> +
> +
> +static const struct driver_info	bcm4320b_info = {
> +	.description =	"Wireless RNDIS device, BCM4320b based",
> +	.flags =	FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
> +	.bind =		rndis_wext_bind,
> +	.unbind =	rndis_wext_unbind,
> +	.status =	rndis_status,
> +	.rx_fixup =	rndis_rx_fixup,
> +	.tx_fixup =	rndis_tx_fixup,
> +	.reset =	rndis_wext_reset,
> +	.early_init =	bcm4320_early_init,
> +	.link_change =	rndis_wext_link_change,
> +};
> +
> +static const struct driver_info	bcm4320a_info = {
> +	.description =	"Wireless RNDIS device, BCM4320a based",
> +	.flags =	FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
> +	.bind =		rndis_wext_bind,
> +	.unbind =	rndis_wext_unbind,
> +	.status =	rndis_status,
> +	.rx_fixup =	rndis_rx_fixup,
> +	.tx_fixup =	rndis_tx_fixup,
> +	.reset =	rndis_wext_reset,
> +	.early_init =	bcm4320_early_init,
> +	.link_change =	rndis_wext_link_change,
> +};
> +
> +static const struct driver_info rndis_wext_info = {
> +	.description =	"Wireless RNDIS device",
> +	.flags =	FLAG_WLAN | FLAG_FRAMING_RN | FLAG_NO_SETINT,
> +	.bind =		rndis_wext_bind,
> +	.unbind =	rndis_wext_unbind,
> +	.status =	rndis_status,
> +	.rx_fixup =	rndis_rx_fixup,
> +	.tx_fixup =	rndis_tx_fixup,
> +	.reset =	rndis_wext_reset,
> +	.early_init =	bcm4320_early_init,
> +	.link_change =	rndis_wext_link_change,
> +};
> +
> +/*-------------------------------------------------------------------------*/
> +
> +static const struct usb_device_id products [] = {
> +#define	RNDIS_MASTER_INTERFACE \
> +	.bInterfaceClass	= USB_CLASS_COMM, \
> +	.bInterfaceSubClass	= 2 /* ACM */, \
> +	.bInterfaceProtocol	= 0x0ff
> +
> +/* INF driver for these devices have DriverVer >= 4.xx.xx.xx and many custom
> + * parameters available. Chipset marked as 'BCM4320SKFBG' in NDISwrapper-wiki.
> + */
> +{
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x0411,
> +	.idProduct		= 0x00bc,	/* Buffalo WLI-U2-KG125S */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320b_info,
> +}, {
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x0baf,
> +	.idProduct		= 0x011b,	/* U.S. Robotics USR5421 */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320b_info,
> +}, {
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x050d,
> +	.idProduct		= 0x011b,	/* Belkin F5D7051 */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320b_info,
> +}, {
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x1799,	/* Belkin has two vendor ids */
> +	.idProduct		= 0x011b,	/* Belkin F5D7051 */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320b_info,
> +}, {
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x13b1,
> +	.idProduct		= 0x0014,	/* Linksys WUSB54GSv2 */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320b_info,
> +}, {
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x13b1,
> +	.idProduct		= 0x0026,	/* Linksys WUSB54GSC */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320b_info,
> +}, {
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x0b05,
> +	.idProduct		= 0x1717,	/* Asus WL169gE */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320b_info,
> +}, {
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x0a5c,
> +	.idProduct		= 0xd11b,	/* Eminent EM4045 */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320b_info,
> +}, {
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x1690,
> +	.idProduct		= 0x0715,	/* BT Voyager 1055 */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320b_info,
> +},
> +/* These devices have DriverVer < 4.xx.xx.xx and do not have any custom
> + * parameters available, hardware probably contain older firmware version with
> + * no way of updating. Chipset marked as 'BCM4320????' in NDISwrapper-wiki.
> + */
> +{
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x13b1,
> +	.idProduct		= 0x000e,	/* Linksys WUSB54GSv1 */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320a_info,
> +}, {
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x0baf,
> +	.idProduct		= 0x0111,	/* U.S. Robotics USR5420 */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320a_info,
> +}, {
> +	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
> +			  | USB_DEVICE_ID_MATCH_DEVICE,
> +	.idVendor		= 0x0411,
> +	.idProduct		= 0x004b,	/* BUFFALO WLI-USB-G54 */
> +	RNDIS_MASTER_INTERFACE,
> +	.driver_info		= (unsigned long) &bcm4320a_info,
> +},
> +/* Generic Wireless RNDIS devices that we don't have exact
> + * idVendor/idProduct/chip yet.
> + */
> +{
> +	/* RNDIS is MSFT's un-official variant of CDC ACM */
> +	USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
> +	.driver_info = (unsigned long) &rndis_wext_info,
> +}, {
> +	/* "ActiveSync" is an undocumented variant of RNDIS, used in WM5 */
> +	USB_INTERFACE_INFO(USB_CLASS_MISC, 1, 1),
> +	.driver_info = (unsigned long) &rndis_wext_info,
> +},
> +	{ },		// END
> +};
> +MODULE_DEVICE_TABLE(usb, products);
> +
> +static struct usb_driver rndis_wlan_driver = {
> +	.name =		"rndis_wlan",
> +	.id_table =	products,
> +	.probe =	usbnet_probe,
> +	.disconnect =	usbnet_disconnect,
> +	.suspend =	usbnet_suspend,
> +	.resume =	usbnet_resume,
> +};
> +
> +static int __init rndis_wlan_init(void)
> +{
> +	return usb_register(&rndis_wlan_driver);
> +}
> +module_init(rndis_wlan_init);
> +
> +static void __exit rndis_wlan_exit(void)
> +{
> +	usb_deregister(&rndis_wlan_driver);
> +}
> +module_exit(rndis_wlan_exit);
> +
> +MODULE_AUTHOR("Bjorge Dijkstra");
> +MODULE_AUTHOR("Jussi Kivilinna");
> +MODULE_DESCRIPTION("Driver for RNDIS based USB Wireless adapters");
> +MODULE_LICENSE("GPL");
> +
>