text: /*
   * WPA Supplicant - Windows/NDIS driver interface
   * Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
   *
   * This software may be distributed under the terms of the BSD license.
   * See README for more details.
   */
  
  #ifdef __CYGWIN__
  /* Avoid some header file conflicts by not including standard headers for
   * cygwin builds when Packet32.h is included. */
  #include "build_config.h"
  int close(int fd);
  #else /* __CYGWIN__ */
  #include "includes.h"
  #endif /* __CYGWIN__ */
  #ifdef CONFIG_USE_NDISUIO
  #include <winsock2.h>
  #else /* CONFIG_USE_NDISUIO */
  #include "packet32.h"
  #endif /* CONFIG_USE_NDISUIO */
  #ifdef __MINGW32_VERSION
  #include <ddk/ntddndis.h>
  #else /* __MINGW32_VERSION */
  #include <ntddndis.h>
  #endif /* __MINGW32_VERSION */
  
  #ifdef _WIN32_WCE
  #include <winioctl.h>
  #include <nuiouser.h>
  #include <devload.h>
  #endif /* _WIN32_WCE */
  
  #include "common.h"
  #include "driver.h"
  #include "eloop.h"
  #include "common/ieee802_11_defs.h"
  #include "common/ieee802_11_common.h"
  #include "driver_ndis.h"
  
  int wpa_driver_register_event_cb(struct wpa_driver_ndis_data *drv);
  #ifdef CONFIG_NDIS_EVENTS_INTEGRATED
  void wpa_driver_ndis_event_pipe_cb(void *eloop_data, void *user_data);
  #endif /* CONFIG_NDIS_EVENTS_INTEGRATED */
  
  static void wpa_driver_ndis_deinit(void *priv);
  static void wpa_driver_ndis_poll(void *drv);
  static void wpa_driver_ndis_poll_timeout(void *eloop_ctx, void *timeout_ctx);
  static int wpa_driver_ndis_adapter_init(struct wpa_driver_ndis_data *drv);
  static int wpa_driver_ndis_adapter_open(struct wpa_driver_ndis_data *drv);
  static void wpa_driver_ndis_adapter_close(struct wpa_driver_ndis_data *drv);
  
  
  static const u8 pae_group_addr[ETH_ALEN] =
  { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03 };
  
  
  /* FIX: to be removed once this can be compiled with the complete NDIS
   * header files */
  #ifndef OID_802_11_BSSID
  #define OID_802_11_BSSID 			0x0d010101
  #define OID_802_11_SSID 			0x0d010102
  #define OID_802_11_INFRASTRUCTURE_MODE		0x0d010108
  #define OID_802_11_ADD_WEP			0x0D010113
  #define OID_802_11_REMOVE_WEP			0x0D010114
  #define OID_802_11_DISASSOCIATE			0x0D010115
  #define OID_802_11_BSSID_LIST 			0x0d010217
  #define OID_802_11_AUTHENTICATION_MODE		0x0d010118
  #define OID_802_11_PRIVACY_FILTER		0x0d010119
  #define OID_802_11_BSSID_LIST_SCAN 		0x0d01011A
  #define OID_802_11_WEP_STATUS	 		0x0d01011B
  #define OID_802_11_ENCRYPTION_STATUS OID_802_11_WEP_STATUS
  #define OID_802_11_ADD_KEY 			0x0d01011D
  #define OID_802_11_REMOVE_KEY 			0x0d01011E
  #define OID_802_11_ASSOCIATION_INFORMATION	0x0d01011F
  #define OID_802_11_TEST 			0x0d010120
  #define OID_802_11_CAPABILITY 			0x0d010122
  #define OID_802_11_PMKID 			0x0d010123
  
  #define NDIS_802_11_LENGTH_SSID 32
  #define NDIS_802_11_LENGTH_RATES 8
  #define NDIS_802_11_LENGTH_RATES_EX 16
  
  typedef UCHAR NDIS_802_11_MAC_ADDRESS[6];
  
  typedef struct NDIS_802_11_SSID {
  	ULONG SsidLength;
  	UCHAR Ssid[NDIS_802_11_LENGTH_SSID];
  } NDIS_802_11_SSID;
  
  typedef LONG NDIS_802_11_RSSI;
  
  typedef enum NDIS_802_11_NETWORK_TYPE {
  	Ndis802_11FH,
  	Ndis802_11DS,
  	Ndis802_11OFDM5,
  	Ndis802_11OFDM24,
  	Ndis802_11NetworkTypeMax
  } NDIS_802_11_NETWORK_TYPE;
  
  typedef struct NDIS_802_11_CONFIGURATION_FH {
  	ULONG Length;
  	ULONG HopPattern;
  	ULONG HopSet;
  	ULONG DwellTime;
  } NDIS_802_11_CONFIGURATION_FH;
  
  typedef struct NDIS_802_11_CONFIGURATION {
  	ULONG Length;
  	ULONG BeaconPeriod;
  	ULONG ATIMWindow;
  	ULONG DSConfig;
  	NDIS_802_11_CONFIGURATION_FH FHConfig;
  } NDIS_802_11_CONFIGURATION;
  
  typedef enum NDIS_802_11_NETWORK_INFRASTRUCTURE {
  	Ndis802_11IBSS,
  	Ndis802_11Infrastructure,
  	Ndis802_11AutoUnknown,
  	Ndis802_11InfrastructureMax
  } NDIS_802_11_NETWORK_INFRASTRUCTURE;
  
  typedef enum NDIS_802_11_AUTHENTICATION_MODE {
  	Ndis802_11AuthModeOpen,
  	Ndis802_11AuthModeShared,
  	Ndis802_11AuthModeAutoSwitch,
  	Ndis802_11AuthModeWPA,
  	Ndis802_11AuthModeWPAPSK,
  	Ndis802_11AuthModeWPANone,
  	Ndis802_11AuthModeWPA2,
  	Ndis802_11AuthModeWPA2PSK,
  	Ndis802_11AuthModeMax
  } NDIS_802_11_AUTHENTICATION_MODE;
  
  typedef enum NDIS_802_11_WEP_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
  } NDIS_802_11_WEP_STATUS, NDIS_802_11_ENCRYPTION_STATUS;
  
  typedef enum NDIS_802_11_PRIVACY_FILTER {
  	Ndis802_11PrivFilterAcceptAll,
  	Ndis802_11PrivFilter8021xWEP
  } NDIS_802_11_PRIVACY_FILTER;
  
  typedef UCHAR NDIS_802_11_RATES[NDIS_802_11_LENGTH_RATES];
  typedef UCHAR NDIS_802_11_RATES_EX[NDIS_802_11_LENGTH_RATES_EX];
  
  typedef struct NDIS_WLAN_BSSID_EX {
  	ULONG Length;
  	NDIS_802_11_MAC_ADDRESS MacAddress; /* BSSID */
  	UCHAR Reserved[2];
  	NDIS_802_11_SSID Ssid;
  	ULONG Privacy;
  	NDIS_802_11_RSSI Rssi;
  	NDIS_802_11_NETWORK_TYPE NetworkTypeInUse;
  	NDIS_802_11_CONFIGURATION Configuration;
  	NDIS_802_11_NETWORK_INFRASTRUCTURE InfrastructureMode;
  	NDIS_802_11_RATES_EX SupportedRates;
  	ULONG IELength;
  	UCHAR IEs[1];
  } NDIS_WLAN_BSSID_EX;
  
  typedef struct NDIS_802_11_BSSID_LIST_EX {
  	ULONG NumberOfItems;
  	NDIS_WLAN_BSSID_EX Bssid[1];
  } NDIS_802_11_BSSID_LIST_EX;
  
  typedef struct NDIS_802_11_FIXED_IEs {
  	UCHAR Timestamp[8];
  	USHORT BeaconInterval;
  	USHORT Capabilities;
  } NDIS_802_11_FIXED_IEs;
  
  typedef struct NDIS_802_11_WEP {
  	ULONG Length;
  	ULONG KeyIndex;
  	ULONG KeyLength;
  	UCHAR KeyMaterial[1];
  } NDIS_802_11_WEP;
  
  typedef ULONG NDIS_802_11_KEY_INDEX;
  typedef ULONGLONG NDIS_802_11_KEY_RSC;
  
  typedef struct NDIS_802_11_KEY {
  	ULONG Length;
  	ULONG KeyIndex;
  	ULONG KeyLength;
  	NDIS_802_11_MAC_ADDRESS BSSID;
  	NDIS_802_11_KEY_RSC KeyRSC;
  	UCHAR KeyMaterial[1];
  } NDIS_802_11_KEY;
  
  typedef struct NDIS_802_11_REMOVE_KEY {
  	ULONG Length;
  	ULONG KeyIndex;
  	NDIS_802_11_MAC_ADDRESS BSSID;
  } NDIS_802_11_REMOVE_KEY;
  
  typedef struct NDIS_802_11_AI_REQFI {
  	USHORT Capabilities;
  	USHORT ListenInterval;
  	NDIS_802_11_MAC_ADDRESS CurrentAPAddress;
  } NDIS_802_11_AI_REQFI;
  
  typedef struct NDIS_802_11_AI_RESFI {
  	USHORT Capabilities;
  	USHORT StatusCode;
  	USHORT AssociationId;
  } NDIS_802_11_AI_RESFI;
  
  typedef struct NDIS_802_11_ASSOCIATION_INFORMATION {
  	ULONG Length;
  	USHORT AvailableRequestFixedIEs;
  	NDIS_802_11_AI_REQFI RequestFixedIEs;
  	ULONG RequestIELength;
  	ULONG OffsetRequestIEs;
  	USHORT AvailableResponseFixedIEs;
  	NDIS_802_11_AI_RESFI ResponseFixedIEs;
  	ULONG ResponseIELength;
  	ULONG OffsetResponseIEs;
  } NDIS_802_11_ASSOCIATION_INFORMATION;
  
  typedef struct NDIS_802_11_AUTHENTICATION_ENCRYPTION {
  	NDIS_802_11_AUTHENTICATION_MODE AuthModeSupported;
  	NDIS_802_11_ENCRYPTION_STATUS EncryptStatusSupported;
  } NDIS_802_11_AUTHENTICATION_ENCRYPTION;
  
  typedef struct NDIS_802_11_CAPABILITY {
  	ULONG Length;
  	ULONG Version;
  	ULONG NoOfPMKIDs;
  	ULONG NoOfAuthEncryptPairsSupported;
  	NDIS_802_11_AUTHENTICATION_ENCRYPTION
  		AuthenticationEncryptionSupported[1];
  } NDIS_802_11_CAPABILITY;
  
  typedef UCHAR NDIS_802_11_PMKID_VALUE[16];
  
  typedef struct BSSID_INFO {
  	NDIS_802_11_MAC_ADDRESS BSSID;
  	NDIS_802_11_PMKID_VALUE PMKID;
  } BSSID_INFO;
  
  typedef struct NDIS_802_11_PMKID {
  	ULONG Length;
  	ULONG BSSIDInfoCount;
  	BSSID_INFO BSSIDInfo[1];
  } NDIS_802_11_PMKID;
  
  typedef enum NDIS_802_11_STATUS_TYPE {
  	Ndis802_11StatusType_Authentication,
  	Ndis802_11StatusType_PMKID_CandidateList = 2,
  	Ndis802_11StatusTypeMax
  } NDIS_802_11_STATUS_TYPE;
  
  typedef struct NDIS_802_11_STATUS_INDICATION {
  	NDIS_802_11_STATUS_TYPE StatusType;
  } NDIS_802_11_STATUS_INDICATION;
  
  typedef struct PMKID_CANDIDATE {
  	NDIS_802_11_MAC_ADDRESS BSSID;
  	ULONG Flags;
  } PMKID_CANDIDATE;
  
  #define NDIS_802_11_PMKID_CANDIDATE_PREAUTH_ENABLED 0x01
  
  typedef struct NDIS_802_11_PMKID_CANDIDATE_LIST {
  	ULONG Version;
  	ULONG NumCandidates;
  	PMKID_CANDIDATE CandidateList[1];
  } NDIS_802_11_PMKID_CANDIDATE_LIST;
  
  typedef struct NDIS_802_11_AUTHENTICATION_REQUEST {
  	ULONG Length;
  	NDIS_802_11_MAC_ADDRESS Bssid;
  	ULONG Flags;
  } NDIS_802_11_AUTHENTICATION_REQUEST;
  
  #define NDIS_802_11_AUTH_REQUEST_REAUTH			0x01
  #define NDIS_802_11_AUTH_REQUEST_KEYUPDATE		0x02
  #define NDIS_802_11_AUTH_REQUEST_PAIRWISE_ERROR		0x06
  #define NDIS_802_11_AUTH_REQUEST_GROUP_ERROR		0x0E
  
  #endif /* OID_802_11_BSSID */
  
  
  #ifndef OID_802_11_PMKID
  /* Platform SDK for XP did not include WPA2, so add needed definitions */
  
  #define OID_802_11_CAPABILITY 			0x0d010122
  #define OID_802_11_PMKID 			0x0d010123
  
  #define Ndis802_11AuthModeWPA2 6
  #define Ndis802_11AuthModeWPA2PSK 7
  
  #define Ndis802_11StatusType_PMKID_CandidateList 2
  
  typedef struct NDIS_802_11_AUTHENTICATION_ENCRYPTION {
  	NDIS_802_11_AUTHENTICATION_MODE AuthModeSupported;
  	NDIS_802_11_ENCRYPTION_STATUS EncryptStatusSupported;
  } NDIS_802_11_AUTHENTICATION_ENCRYPTION;
  
  typedef struct NDIS_802_11_CAPABILITY {
  	ULONG Length;
  	ULONG Version;
  	ULONG NoOfPMKIDs;
  	ULONG NoOfAuthEncryptPairsSupported;
  	NDIS_802_11_AUTHENTICATION_ENCRYPTION
  		AuthenticationEncryptionSupported[1];
  } NDIS_802_11_CAPABILITY;
  
  typedef UCHAR NDIS_802_11_PMKID_VALUE[16];
  
  typedef struct BSSID_INFO {
  	NDIS_802_11_MAC_ADDRESS BSSID;
  	NDIS_802_11_PMKID_VALUE PMKID;
  } BSSID_INFO;
  
  typedef struct NDIS_802_11_PMKID {
  	ULONG Length;
  	ULONG BSSIDInfoCount;
  	BSSID_INFO BSSIDInfo[1];
  } NDIS_802_11_PMKID;
  
  typedef struct PMKID_CANDIDATE {
  	NDIS_802_11_MAC_ADDRESS BSSID;
  	ULONG Flags;
  } PMKID_CANDIDATE;
  
  #define NDIS_802_11_PMKID_CANDIDATE_PREAUTH_ENABLED 0x01
  
  typedef struct NDIS_802_11_PMKID_CANDIDATE_LIST {
  	ULONG Version;
  	ULONG NumCandidates;
  	PMKID_CANDIDATE CandidateList[1];
  } NDIS_802_11_PMKID_CANDIDATE_LIST;
  
  #endif /* OID_802_11_CAPABILITY */
  
  
  #ifndef OID_DOT11_CURRENT_OPERATION_MODE
  /* Native 802.11 OIDs */
  #define OID_DOT11_NDIS_START 0x0D010300
  #define OID_DOT11_CURRENT_OPERATION_MODE (OID_DOT11_NDIS_START + 8)
  #define OID_DOT11_SCAN_REQUEST (OID_DOT11_NDIS_START + 11)
  
  typedef enum _DOT11_BSS_TYPE {
  	dot11_BSS_type_infrastructure = 1,
  	dot11_BSS_type_independent = 2,
  	dot11_BSS_type_any = 3
  } DOT11_BSS_TYPE, * PDOT11_BSS_TYPE;
  
  typedef UCHAR DOT11_MAC_ADDRESS[6];
  typedef DOT11_MAC_ADDRESS * PDOT11_MAC_ADDRESS;
  
  typedef enum _DOT11_SCAN_TYPE {
  	dot11_scan_type_active = 1,
  	dot11_scan_type_passive = 2,
  	dot11_scan_type_auto = 3,
  	dot11_scan_type_forced = 0x80000000
  } DOT11_SCAN_TYPE, * PDOT11_SCAN_TYPE;
  
  typedef struct _DOT11_SCAN_REQUEST_V2 {
  	DOT11_BSS_TYPE dot11BSSType;
  	DOT11_MAC_ADDRESS dot11BSSID;
  	DOT11_SCAN_TYPE dot11ScanType;
  	BOOLEAN bRestrictedScan;
  	ULONG udot11SSIDsOffset;
  	ULONG uNumOfdot11SSIDs;
  	BOOLEAN bUseRequestIE;
  	ULONG uRequestIDsOffset;
  	ULONG uNumOfRequestIDs;
  	ULONG uPhyTypeInfosOffset;
  	ULONG uNumOfPhyTypeInfos;
  	ULONG uIEsOffset;
  	ULONG uIEsLength;
  	UCHAR ucBuffer[1];
  } DOT11_SCAN_REQUEST_V2, * PDOT11_SCAN_REQUEST_V2;
  
  #endif /* OID_DOT11_CURRENT_OPERATION_MODE */
  
  #ifdef CONFIG_USE_NDISUIO
  #ifndef _WIN32_WCE
  #ifdef __MINGW32_VERSION
  typedef ULONG NDIS_OID;
  #endif /* __MINGW32_VERSION */
  /* from nuiouser.h */
  #define FSCTL_NDISUIO_BASE      FILE_DEVICE_NETWORK
  
  #define _NDISUIO_CTL_CODE(_Function, _Method, _Access) \
  	CTL_CODE(FSCTL_NDISUIO_BASE, _Function, _Method, _Access)
  
  #define IOCTL_NDISUIO_OPEN_DEVICE \
  	_NDISUIO_CTL_CODE(0x200, METHOD_BUFFERED, \
  			  FILE_READ_ACCESS | FILE_WRITE_ACCESS)
  
  #define IOCTL_NDISUIO_QUERY_OID_VALUE \
  	_NDISUIO_CTL_CODE(0x201, METHOD_BUFFERED, \
  			  FILE_READ_ACCESS | FILE_WRITE_ACCESS)
  
  #define IOCTL_NDISUIO_SET_OID_VALUE \
  	_NDISUIO_CTL_CODE(0x205, METHOD_BUFFERED, \
  			  FILE_READ_ACCESS | FILE_WRITE_ACCESS)
  
  #define IOCTL_NDISUIO_SET_ETHER_TYPE \
  	_NDISUIO_CTL_CODE(0x202, METHOD_BUFFERED, \
  			  FILE_READ_ACCESS | FILE_WRITE_ACCESS)
  
  #define IOCTL_NDISUIO_QUERY_BINDING \
  	_NDISUIO_CTL_CODE(0x203, METHOD_BUFFERED, \
  			  FILE_READ_ACCESS | FILE_WRITE_ACCESS)
  
  #define IOCTL_NDISUIO_BIND_WAIT \
  	_NDISUIO_CTL_CODE(0x204, METHOD_BUFFERED, \
  			  FILE_READ_ACCESS | FILE_WRITE_ACCESS)
  
  typedef struct _NDISUIO_QUERY_OID
  {
      NDIS_OID Oid;
      UCHAR Data[sizeof(ULONG)];
  } NDISUIO_QUERY_OID, *PNDISUIO_QUERY_OID;
  
  typedef struct _NDISUIO_SET_OID
  {
      NDIS_OID Oid;
      UCHAR Data[sizeof(ULONG)];
  } NDISUIO_SET_OID, *PNDISUIO_SET_OID;
  
  typedef struct _NDISUIO_QUERY_BINDING
  {
  	ULONG BindingIndex;
  	ULONG DeviceNameOffset;
  	ULONG DeviceNameLength;
  	ULONG DeviceDescrOffset;
  	ULONG DeviceDescrLength;
  } NDISUIO_QUERY_BINDING, *PNDISUIO_QUERY_BINDING;
  #endif /* _WIN32_WCE */
  #endif /* CONFIG_USE_NDISUIO */
  
  
  static int ndis_get_oid(struct wpa_driver_ndis_data *drv, unsigned int oid,
  			char *data, size_t len)
  {
  #ifdef CONFIG_USE_NDISUIO
  	NDISUIO_QUERY_OID *o;
  	size_t buflen = sizeof(*o) + len;
  	DWORD written;
  	int ret;
  	size_t hdrlen;
  
  	o = os_zalloc(buflen);
  	if (o == NULL)
  		return -1;
  	o->Oid = oid;
  #ifdef _WIN32_WCE
  	o->ptcDeviceName = drv->adapter_name;
  #endif /* _WIN32_WCE */
  	if (!DeviceIoControl(drv->ndisuio, IOCTL_NDISUIO_QUERY_OID_VALUE,
  			     o, sizeof(NDISUIO_QUERY_OID), o, buflen, &written,
  			     NULL)) {
  		wpa_printf(MSG_DEBUG, "NDIS: IOCTL_NDISUIO_QUERY_OID_VALUE "
  			   "failed (oid=%08x): %d", oid, (int) GetLastError());
  		os_free(o);
  		return -1;
  	}
  	hdrlen = sizeof(NDISUIO_QUERY_OID) - sizeof(o->Data);
  	if (written < hdrlen) {
  		wpa_printf(MSG_DEBUG, "NDIS: query oid=%08x written (%d); "
  			   "too short", oid, (unsigned int) written);
  		os_free(o);
  		return -1;
  	}
  	written -= hdrlen;
  	if (written > len) {
  		wpa_printf(MSG_DEBUG, "NDIS: query oid=%08x written (%d) > "
  			   "len (%d)",oid, (unsigned int) written, len);
  		os_free(o);
  		return -1;
  	}
  	os_memcpy(data, o->Data, written);
  	ret = written;
  	os_free(o);
  	return ret;
  #else /* CONFIG_USE_NDISUIO */
  	char *buf;
  	PACKET_OID_DATA *o;
  	int ret;
  
  	buf = os_zalloc(sizeof(*o) + len);
  	if (buf == NULL)
  		return -1;
  	o = (PACKET_OID_DATA *) buf;
  	o->Oid = oid;
  	o->Length = len;
  
  	if (!PacketRequest(drv->adapter, FALSE, o)) {
  		wpa_printf(MSG_DEBUG, "%s: oid=0x%x len (%d) failed",
  			   __func__, oid, len);
  		os_free(buf);
  		return -1;
  	}
  	if (o->Length > len) {
  		wpa_printf(MSG_DEBUG, "%s: oid=0x%x Length (%d) > len (%d)",
  			   __func__, oid, (unsigned int) o->Length, len);
  		os_free(buf);
  		return -1;
  	}
  	os_memcpy(data, o->Data, o->Length);
  	ret = o->Length;
  	os_free(buf);
  	return ret;
  #endif /* CONFIG_USE_NDISUIO */
  }
  
  
  static int ndis_set_oid(struct wpa_driver_ndis_data *drv, unsigned int oid,
  			const char *data, size_t len)
  {
  #ifdef CONFIG_USE_NDISUIO
  	NDISUIO_SET_OID *o;
  	size_t buflen, reallen;
  	DWORD written;
  	char txt[50];
  
  	os_snprintf(txt, sizeof(txt), "NDIS: Set OID %08x", oid);
  	wpa_hexdump_key(MSG_MSGDUMP, txt, (const u8 *) data, len);
  
  	buflen = sizeof(*o) + len;
  	reallen = buflen - sizeof(o->Data);
  	o = os_zalloc(buflen);
  	if (o == NULL)
  		return -1;
  	o->Oid = oid;
  #ifdef _WIN32_WCE
  	o->ptcDeviceName = drv->adapter_name;
  #endif /* _WIN32_WCE */
  	if (data)
  		os_memcpy(o->Data, data, len);
  	if (!DeviceIoControl(drv->ndisuio, IOCTL_NDISUIO_SET_OID_VALUE,
  			     o, reallen, NULL, 0, &written, NULL)) {
  		wpa_printf(MSG_DEBUG, "NDIS: IOCTL_NDISUIO_SET_OID_VALUE "
  			   "(oid=%08x) failed: %d", oid, (int) GetLastError());
  		os_free(o);
  		return -1;
  	}
  	os_free(o);
  	return 0;
  #else /* CONFIG_USE_NDISUIO */
  	char *buf;
  	PACKET_OID_DATA *o;
  	char txt[50];
  
  	os_snprintf(txt, sizeof(txt), "NDIS: Set OID %08x", oid);
  	wpa_hexdump_key(MSG_MSGDUMP, txt, (const u8 *) data, len);
  
  	buf = os_zalloc(sizeof(*o) + len);
  	if (buf == NULL)
  		return -1;
  	o = (PACKET_OID_DATA *) buf;
  	o->Oid = oid;
  	o->Length = len;
  	if (data)
  		os_memcpy(o->Data, data, len);
  
  	if (!PacketRequest(drv->adapter, TRUE, o)) {
  		wpa_printf(MSG_DEBUG, "%s: oid=0x%x len (%d) failed",
  			   __func__, oid, len);
  		os_free(buf);
  		return -1;
  	}
  	os_free(buf);
  	return 0;
  #endif /* CONFIG_USE_NDISUIO */
  }
  
  
  static int ndis_set_auth_mode(struct wpa_driver_ndis_data *drv, int mode)
  {
  	u32 auth_mode = mode;
  	if (ndis_set_oid(drv, OID_802_11_AUTHENTICATION_MODE,
  			 (char *) &auth_mode, sizeof(auth_mode)) < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to set "
  			   "OID_802_11_AUTHENTICATION_MODE (%d)",
  			   (int) auth_mode);
  		return -1;
  	}
  	return 0;
  }
  
  
  static int ndis_get_auth_mode(struct wpa_driver_ndis_data *drv)
  {
  	u32 auth_mode;
  	int res;
  	res = ndis_get_oid(drv, OID_802_11_AUTHENTICATION_MODE,
  			   (char *) &auth_mode, sizeof(auth_mode));
  	if (res != sizeof(auth_mode)) {
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to get "
  			   "OID_802_11_AUTHENTICATION_MODE");
  		return -1;
  	}
  	return auth_mode;
  }
  
  
  static int ndis_set_encr_status(struct wpa_driver_ndis_data *drv, int encr)
  {
  	u32 encr_status = encr;
  	if (ndis_set_oid(drv, OID_802_11_ENCRYPTION_STATUS,
  			 (char *) &encr_status, sizeof(encr_status)) < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to set "
  			   "OID_802_11_ENCRYPTION_STATUS (%d)", encr);
  		return -1;
  	}
  	return 0;
  }
  
  
  static int ndis_get_encr_status(struct wpa_driver_ndis_data *drv)
  {
  	u32 encr;
  	int res;
  	res = ndis_get_oid(drv, OID_802_11_ENCRYPTION_STATUS,
  			   (char *) &encr, sizeof(encr));
  	if (res != sizeof(encr)) {
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to get "
  			   "OID_802_11_ENCRYPTION_STATUS");
  		return -1;
  	}
  	return encr;
  }
  
  
  static int wpa_driver_ndis_get_bssid(void *priv, u8 *bssid)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  
  	if (drv->wired) {
  		/*
  		 * Report PAE group address as the "BSSID" for wired
  		 * connection.
  		 */
  		os_memcpy(bssid, pae_group_addr, ETH_ALEN);
  		return 0;
  	}
  
  	return ndis_get_oid(drv, OID_802_11_BSSID, (char *) bssid, ETH_ALEN) <
  		0 ? -1 : 0;
  }
  
  
  static int wpa_driver_ndis_get_ssid(void *priv, u8 *ssid)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	NDIS_802_11_SSID buf;
  	int res;
  
  	res = ndis_get_oid(drv, OID_802_11_SSID, (char *) &buf, sizeof(buf));
  	if (res < 4) {
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to get SSID");
  		if (drv->wired) {
  			wpa_printf(MSG_DEBUG, "NDIS: Allow get_ssid failure "
  				   "with a wired interface");
  			return 0;
  		}
  		return -1;
  	}
  	os_memcpy(ssid, buf.Ssid, buf.SsidLength);
  	return buf.SsidLength;
  }
  
  
  static int wpa_driver_ndis_set_ssid(struct wpa_driver_ndis_data *drv,
  				    const u8 *ssid, size_t ssid_len)
  {
  	NDIS_802_11_SSID buf;
  
  	os_memset(&buf, 0, sizeof(buf));
  	buf.SsidLength = ssid_len;
  	os_memcpy(buf.Ssid, ssid, ssid_len);
  	/*
  	 * Make sure radio is marked enabled here so that scan request will not
  	 * force SSID to be changed to a random one in order to enable radio at
  	 * that point.
  	 */
  	drv->radio_enabled = 1;
  	return ndis_set_oid(drv, OID_802_11_SSID, (char *) &buf, sizeof(buf));
  }
  
  
  /* Disconnect using OID_802_11_DISASSOCIATE. This will also turn the radio off.
   */
  static int wpa_driver_ndis_radio_off(struct wpa_driver_ndis_data *drv)
  {
  	drv->radio_enabled = 0;
  	return ndis_set_oid(drv, OID_802_11_DISASSOCIATE, "    ", 4);
  }
  
  
  /* Disconnect by setting SSID to random (i.e., likely not used). */
  static int wpa_driver_ndis_disconnect(struct wpa_driver_ndis_data *drv)
  {
  	char ssid[SSID_MAX_LEN];
  	int i;
  	for (i = 0; i < SSID_MAX_LEN; i++)
  		ssid[i] = rand() & 0xff;
  	return wpa_driver_ndis_set_ssid(drv, (u8 *) ssid, SSID_MAX_LEN);
  }
  
  
  static int wpa_driver_ndis_deauthenticate(void *priv, const u8 *addr,
  					  int reason_code)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	return wpa_driver_ndis_disconnect(drv);
  }
  
  
  static void wpa_driver_ndis_scan_timeout(void *eloop_ctx, void *timeout_ctx)
  {
  	wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
  	wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
  }
  
  
  static int wpa_driver_ndis_scan_native80211(
  	struct wpa_driver_ndis_data *drv,
  	struct wpa_driver_scan_params *params)
  {
  	DOT11_SCAN_REQUEST_V2 req;
  	int res;
  
  	os_memset(&req, 0, sizeof(req));
  	req.dot11BSSType = dot11_BSS_type_any;
  	os_memset(req.dot11BSSID, 0xff, ETH_ALEN);
  	req.dot11ScanType = dot11_scan_type_auto;
  	res = ndis_set_oid(drv, OID_DOT11_SCAN_REQUEST, (char *) &req,
  			   sizeof(req));
  	eloop_cancel_timeout(wpa_driver_ndis_scan_timeout, drv, drv->ctx);
  	eloop_register_timeout(7, 0, wpa_driver_ndis_scan_timeout, drv,
  			       drv->ctx);
  	return res;
  }
  
  
  static int wpa_driver_ndis_scan(void *priv,
  				struct wpa_driver_scan_params *params)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	int res;
  
  	if (drv->native80211)
  		return wpa_driver_ndis_scan_native80211(drv, params);
  
  	if (!drv->radio_enabled) {
  		wpa_printf(MSG_DEBUG, "NDIS: turning radio on before the first"
  			   " scan");
  		if (wpa_driver_ndis_disconnect(drv) < 0) {
  			wpa_printf(MSG_DEBUG, "NDIS: failed to enable radio");
  		}
  		drv->radio_enabled = 1;
  	}
  
  	res = ndis_set_oid(drv, OID_802_11_BSSID_LIST_SCAN, "    ", 4);
  	eloop_cancel_timeout(wpa_driver_ndis_scan_timeout, drv, drv->ctx);
  	eloop_register_timeout(7, 0, wpa_driver_ndis_scan_timeout, drv,
  			       drv->ctx);
  	return res;
  }
  
  
  static const u8 * wpa_scan_get_ie(const struct wpa_scan_res *res, u8 ie)
  {
  	return get_ie((const u8 *) (res + 1), res->ie_len, ie);
  }
  
  
  static struct wpa_scan_res * wpa_driver_ndis_add_scan_ssid(
  	struct wpa_scan_res *r, NDIS_802_11_SSID *ssid)
  {
  	struct wpa_scan_res *nr;
  	u8 *pos;
  
  	if (wpa_scan_get_ie(r, WLAN_EID_SSID))
  		return r; /* SSID IE already present */
  
  	if (ssid->SsidLength == 0 || ssid->SsidLength > SSID_MAX_LEN)
  		return r; /* No valid SSID inside scan data */
  
  	nr = os_realloc(r, sizeof(*r) + r->ie_len + 2 + ssid->SsidLength);
  	if (nr == NULL)
  		return r;
  
  	pos = ((u8 *) (nr + 1)) + nr->ie_len;
  	*pos++ = WLAN_EID_SSID;
  	*pos++ = ssid->SsidLength;
  	os_memcpy(pos, ssid->Ssid, ssid->SsidLength);
  	nr->ie_len += 2 + ssid->SsidLength;
  
  	return nr;
  }
  
  
  static struct wpa_scan_results * wpa_driver_ndis_get_scan_results(void *priv)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	NDIS_802_11_BSSID_LIST_EX *b;
  	size_t blen, count, i;
  	int len;
  	char *pos;
  	struct wpa_scan_results *results;
  	struct wpa_scan_res *r;
  
  	blen = 65535;
  	b = os_zalloc(blen);
  	if (b == NULL)
  		return NULL;
  	len = ndis_get_oid(drv, OID_802_11_BSSID_LIST, (char *) b, blen);
  	if (len < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: failed to get scan results");
  		os_free(b);
  		return NULL;
  	}
  	count = b->NumberOfItems;
  
  	results = os_zalloc(sizeof(*results));
  	if (results == NULL) {
  		os_free(b);
  		return NULL;
  	}
  	results->res = os_calloc(count, sizeof(struct wpa_scan_res *));
  	if (results->res == NULL) {
  		os_free(results);
  		os_free(b);
  		return NULL;
  	}
  
  	pos = (char *) &b->Bssid[0];
  	for (i = 0; i < count; i++) {
  		NDIS_WLAN_BSSID_EX *bss = (NDIS_WLAN_BSSID_EX *) pos;
  		NDIS_802_11_FIXED_IEs *fixed;
  
  		if (bss->IELength < sizeof(NDIS_802_11_FIXED_IEs)) {
  			wpa_printf(MSG_DEBUG, "NDIS: too small IELength=%d",
  				   (int) bss->IELength);
  			break;
  		}
  		if (((char *) bss->IEs) + bss->IELength  > (char *) b + blen) {
  			/*
  			 * Some NDIS drivers have been reported to include an
  			 * entry with an invalid IELength in scan results and
  			 * this has crashed wpa_supplicant, so validate the
  			 * returned value before using it.
  			 */
  			wpa_printf(MSG_DEBUG, "NDIS: skipped invalid scan "
  				   "result IE (BSSID=" MACSTR ") IELength=%d",
  				   MAC2STR(bss->MacAddress),
  				   (int) bss->IELength);
  			break;
  		}
  
  		r = os_zalloc(sizeof(*r) + bss->IELength -
  			      sizeof(NDIS_802_11_FIXED_IEs));
  		if (r == NULL)
  			break;
  
  		os_memcpy(r->bssid, bss->MacAddress, ETH_ALEN);
  		r->level = (int) bss->Rssi;
  		r->freq = bss->Configuration.DSConfig / 1000;
  		fixed = (NDIS_802_11_FIXED_IEs *) bss->IEs;
  		r->beacon_int = WPA_GET_LE16((u8 *) &fixed->BeaconInterval);
  		r->caps = WPA_GET_LE16((u8 *) &fixed->Capabilities);
  		r->tsf = WPA_GET_LE64(fixed->Timestamp);
  		os_memcpy(r + 1, bss->IEs + sizeof(NDIS_802_11_FIXED_IEs),
  			  bss->IELength - sizeof(NDIS_802_11_FIXED_IEs));
  		r->ie_len = bss->IELength - sizeof(NDIS_802_11_FIXED_IEs);
  		r = wpa_driver_ndis_add_scan_ssid(r, &bss->Ssid);
  
  		results->res[results->num++] = r;
  
  		pos += bss->Length;
  		if (pos > (char *) b + blen)
  			break;
  	}
  
  	os_free(b);
  
  	return results;
  }
  
  
  static int wpa_driver_ndis_remove_key(struct wpa_driver_ndis_data *drv,
  				      int key_idx, const u8 *addr,
  				      const u8 *bssid, int pairwise)
  {
  	NDIS_802_11_REMOVE_KEY rkey;
  	NDIS_802_11_KEY_INDEX index;
  	int res, res2;
  
  	os_memset(&rkey, 0, sizeof(rkey));
  
  	rkey.Length = sizeof(rkey);
  	rkey.KeyIndex = key_idx;
  	if (pairwise)
  		rkey.KeyIndex |= 1 << 30;
  	os_memcpy(rkey.BSSID, bssid, ETH_ALEN);
  
  	res = ndis_set_oid(drv, OID_802_11_REMOVE_KEY, (char *) &rkey,
  			   sizeof(rkey));
  	if (!pairwise) {
  		index = key_idx;
  		res2 = ndis_set_oid(drv, OID_802_11_REMOVE_WEP,
  				    (char *) &index, sizeof(index));
  	} else
  		res2 = 0;
  
  	if (res < 0 && res2 < 0)
  		return -1;
  	return 0;
  }
  
  
  static int wpa_driver_ndis_add_wep(struct wpa_driver_ndis_data *drv,
  				   int pairwise, int key_idx, int set_tx,
  				   const u8 *key, size_t key_len)
  {
  	NDIS_802_11_WEP *wep;
  	size_t len;
  	int res;
  
  	len = 12 + key_len;
  	wep = os_zalloc(len);
  	if (wep == NULL)
  		return -1;
  	wep->Length = len;
  	wep->KeyIndex = key_idx;
  	if (set_tx)
  		wep->KeyIndex |= 1 << 31;
  #if 0 /* Setting bit30 does not seem to work with some NDIS drivers */
  	if (pairwise)
  		wep->KeyIndex |= 1 << 30;
  #endif
  	wep->KeyLength = key_len;
  	os_memcpy(wep->KeyMaterial, key, key_len);
  
  	wpa_hexdump_key(MSG_MSGDUMP, "NDIS: OID_802_11_ADD_WEP",
  			(u8 *) wep, len);
  	res = ndis_set_oid(drv, OID_802_11_ADD_WEP, (char *) wep, len);
  
  	os_free(wep);
  
  	return res;
  }
  
  
  static int wpa_driver_ndis_set_key(const char *ifname, void *priv,
  				   enum wpa_alg alg, const u8 *addr,
  				   int key_idx, int set_tx,
  				   const u8 *seq, size_t seq_len,
  				   const u8 *key, size_t key_len)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	size_t len, i;
  	NDIS_802_11_KEY *nkey;
  	int res, pairwise;
  	u8 bssid[ETH_ALEN];
  
  	if (addr == NULL || is_broadcast_ether_addr(addr)) {
  		/* Group Key */
  		pairwise = 0;
  		if (wpa_driver_ndis_get_bssid(drv, bssid) < 0)
  			os_memset(bssid, 0xff, ETH_ALEN);
  	} else {
  		/* Pairwise Key */
  		pairwise = 1;
  		os_memcpy(bssid, addr, ETH_ALEN);
  	}
  
  	if (alg == WPA_ALG_NONE || key_len == 0) {
  		return wpa_driver_ndis_remove_key(drv, key_idx, addr, bssid,
  						  pairwise);
  	}
  
  	if (alg == WPA_ALG_WEP) {
  		return wpa_driver_ndis_add_wep(drv, pairwise, key_idx, set_tx,
  					       key, key_len);
  	}
  
  	len = 12 + 6 + 6 + 8 + key_len;
  
  	nkey = os_zalloc(len);
  	if (nkey == NULL)
  		return -1;
  
  	nkey->Length = len;
  	nkey->KeyIndex = key_idx;
  	if (set_tx)
  		nkey->KeyIndex |= 1 << 31;
  	if (pairwise)
  		nkey->KeyIndex |= 1 << 30;
  	if (seq && seq_len)
  		nkey->KeyIndex |= 1 << 29;
  	nkey->KeyLength = key_len;
  	os_memcpy(nkey->BSSID, bssid, ETH_ALEN);
  	if (seq && seq_len) {
  		for (i = 0; i < seq_len; i++)
  			nkey->KeyRSC |= (ULONGLONG) seq[i] << (i * 8);
  	}
  	if (alg == WPA_ALG_TKIP && key_len == 32) {
  		os_memcpy(nkey->KeyMaterial, key, 16);
  		os_memcpy(nkey->KeyMaterial + 16, key + 24, 8);
  		os_memcpy(nkey->KeyMaterial + 24, key + 16, 8);
  	} else {
  		os_memcpy(nkey->KeyMaterial, key, key_len);
  	}
  
  	wpa_hexdump_key(MSG_MSGDUMP, "NDIS: OID_802_11_ADD_KEY",
  			(u8 *) nkey, len);
  	res = ndis_set_oid(drv, OID_802_11_ADD_KEY, (char *) nkey, len);
  	os_free(nkey);
  
  	return res;
  }
  
  
  static int
  wpa_driver_ndis_associate(void *priv,
  			  struct wpa_driver_associate_params *params)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	u32 auth_mode, encr, priv_mode, mode;
  	u8 bcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
  
  	drv->mode = params->mode;
  
  	/* Note: Setting OID_802_11_INFRASTRUCTURE_MODE clears current keys,
  	 * so static WEP keys needs to be set again after this. */
  	if (params->mode == IEEE80211_MODE_IBSS) {
  		mode = Ndis802_11IBSS;
  		/* Need to make sure that BSSID polling is enabled for
  		 * IBSS mode. */
  		eloop_cancel_timeout(wpa_driver_ndis_poll_timeout, drv, NULL);
  		eloop_register_timeout(1, 0, wpa_driver_ndis_poll_timeout,
  				       drv, NULL);
  	} else
  		mode = Ndis802_11Infrastructure;
  	if (ndis_set_oid(drv, OID_802_11_INFRASTRUCTURE_MODE,
  			 (char *) &mode, sizeof(mode)) < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to set "
  			   "OID_802_11_INFRASTRUCTURE_MODE (%d)",
  			   (int) mode);
  		/* Try to continue anyway */
  	}
  
  	if (params->key_mgmt_suite == WPA_KEY_MGMT_NONE ||
  	    params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
  		/* Re-set WEP keys if static WEP configuration is used. */
  		int i;
  		for (i = 0; i < 4; i++) {
  			if (!params->wep_key[i])
  				continue;
  			wpa_printf(MSG_DEBUG, "NDIS: Re-setting static WEP "
  				   "key %d", i);
  			wpa_driver_ndis_set_key(drv->ifname, drv, WPA_ALG_WEP,
  						bcast, i,
  						i == params->wep_tx_keyidx,
  						NULL, 0, params->wep_key[i],
  						params->wep_key_len[i]);
  		}
  	}
  
  	if (params->wpa_ie == NULL || params->wpa_ie_len == 0) {
  		if (params->auth_alg & WPA_AUTH_ALG_SHARED) {
  			if (params->auth_alg & WPA_AUTH_ALG_OPEN)
  				auth_mode = Ndis802_11AuthModeAutoSwitch;
  			else
  				auth_mode = Ndis802_11AuthModeShared;
  		} else
  			auth_mode = Ndis802_11AuthModeOpen;
  		priv_mode = Ndis802_11PrivFilterAcceptAll;
  	} else if (params->wpa_ie[0] == WLAN_EID_RSN) {
  		priv_mode = Ndis802_11PrivFilter8021xWEP;
  		if (params->key_mgmt_suite == WPA_KEY_MGMT_PSK)
  			auth_mode = Ndis802_11AuthModeWPA2PSK;
  		else
  			auth_mode = Ndis802_11AuthModeWPA2;
  #ifdef CONFIG_WPS
  	} else if (params->key_mgmt_suite == WPA_KEY_MGMT_WPS) {
  		auth_mode = Ndis802_11AuthModeOpen;
  		priv_mode = Ndis802_11PrivFilterAcceptAll;
  		if (params->wps == WPS_MODE_PRIVACY) {
  			u8 dummy_key[5] = { 0x11, 0x22, 0x33, 0x44, 0x55 };
  			/*
  			 * Some NDIS drivers refuse to associate in open mode
  			 * configuration due to Privacy field mismatch, so use
  			 * a workaround to make the configuration look like
  			 * matching one for WPS provisioning.
  			 */
  			wpa_printf(MSG_DEBUG, "NDIS: Set dummy WEP key as a "
  				   "workaround to allow driver to associate "
  				   "for WPS");
  			wpa_driver_ndis_set_key(drv->ifname, drv, WPA_ALG_WEP,
  						bcast, 0, 1,
  						NULL, 0, dummy_key,
  						sizeof(dummy_key));
  		}
  #endif /* CONFIG_WPS */
  	} else {
  		priv_mode = Ndis802_11PrivFilter8021xWEP;
  		if (params->key_mgmt_suite == WPA_KEY_MGMT_WPA_NONE)
  			auth_mode = Ndis802_11AuthModeWPANone;
  		else if (params->key_mgmt_suite == WPA_KEY_MGMT_PSK)
  			auth_mode = Ndis802_11AuthModeWPAPSK;
  		else
  			auth_mode = Ndis802_11AuthModeWPA;
  	}
  
  	switch (params->pairwise_suite) {
  	case WPA_CIPHER_CCMP:
  		encr = Ndis802_11Encryption3Enabled;
  		break;
  	case WPA_CIPHER_TKIP:
  		encr = Ndis802_11Encryption2Enabled;
  		break;
  	case WPA_CIPHER_WEP40:
  	case WPA_CIPHER_WEP104:
  		encr = Ndis802_11Encryption1Enabled;
  		break;
  	case WPA_CIPHER_NONE:
  #ifdef CONFIG_WPS
  		if (params->wps == WPS_MODE_PRIVACY) {
  			encr = Ndis802_11Encryption1Enabled;
  			break;
  		}
  #endif /* CONFIG_WPS */
  		if (params->group_suite == WPA_CIPHER_CCMP)
  			encr = Ndis802_11Encryption3Enabled;
  		else if (params->group_suite == WPA_CIPHER_TKIP)
  			encr = Ndis802_11Encryption2Enabled;
  		else
  			encr = Ndis802_11EncryptionDisabled;
  		break;
  	default:
  #ifdef CONFIG_WPS
  		if (params->wps == WPS_MODE_PRIVACY) {
  			encr = Ndis802_11Encryption1Enabled;
  			break;
  		}
  #endif /* CONFIG_WPS */
  		encr = Ndis802_11EncryptionDisabled;
  		break;
  	};
  
  	if (ndis_set_oid(drv, OID_802_11_PRIVACY_FILTER,
  			 (char *) &priv_mode, sizeof(priv_mode)) < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to set "
  			   "OID_802_11_PRIVACY_FILTER (%d)",
  			   (int) priv_mode);
  		/* Try to continue anyway */
  	}
  
  	ndis_set_auth_mode(drv, auth_mode);
  	ndis_set_encr_status(drv, encr);
  
  	if (params->bssid) {
  		ndis_set_oid(drv, OID_802_11_BSSID, (char *) params->bssid,
  			     ETH_ALEN);
  		drv->oid_bssid_set = 1;
  	} else if (drv->oid_bssid_set) {
  		ndis_set_oid(drv, OID_802_11_BSSID, "\xff\xff\xff\xff\xff\xff",
  			     ETH_ALEN);
  		drv->oid_bssid_set = 0;
  	}
  
  	return wpa_driver_ndis_set_ssid(drv, params->ssid, params->ssid_len);
  }
  
  
  static int wpa_driver_ndis_set_pmkid(struct wpa_driver_ndis_data *drv)
  {
  	int len, count, i, ret;
  	struct ndis_pmkid_entry *entry;
  	NDIS_802_11_PMKID *p;
  
  	count = 0;
  	entry = drv->pmkid;
  	while (entry) {
  		count++;
  		if (count >= drv->no_of_pmkid)
  			break;
  		entry = entry->next;
  	}
  	len = 8 + count * sizeof(BSSID_INFO);
  	p = os_zalloc(len);
  	if (p == NULL)
  		return -1;
  
  	p->Length = len;
  	p->BSSIDInfoCount = count;
  	entry = drv->pmkid;
  	for (i = 0; i < count; i++) {
  		os_memcpy(&p->BSSIDInfo[i].BSSID, entry->bssid, ETH_ALEN);
  		os_memcpy(&p->BSSIDInfo[i].PMKID, entry->pmkid, 16);
  		entry = entry->next;
  	}
  	wpa_hexdump(MSG_MSGDUMP, "NDIS: OID_802_11_PMKID", (u8 *) p, len);
  	ret = ndis_set_oid(drv, OID_802_11_PMKID, (char *) p, len);
  	os_free(p);
  	return ret;
  }
  
  
  static int wpa_driver_ndis_add_pmkid(void *priv,
  				     struct wpa_pmkid_params *params)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	struct ndis_pmkid_entry *entry, *prev;
  	const u8 *bssid = params->bssid;
  	const u8 *pmkid = params->pmkid;
  
  	if (!bssid || !pmkid)
  		return -1;
  	if (drv->no_of_pmkid == 0)
  		return 0;
  
  	prev = NULL;
  	entry = drv->pmkid;
  	while (entry) {
  		if (os_memcmp(entry->bssid, bssid, ETH_ALEN) == 0)
  			break;
  		prev = entry;
  		entry = entry->next;
  	}
  
  	if (entry) {
  		/* Replace existing entry for this BSSID and move it into the
  		 * beginning of the list. */
  		os_memcpy(entry->pmkid, pmkid, 16);
  		if (prev) {
  			prev->next = entry->next;
  			entry->next = drv->pmkid;
  			drv->pmkid = entry;
  		}
  	} else {
  		entry = os_malloc(sizeof(*entry));
  		if (entry) {
  			os_memcpy(entry->bssid, bssid, ETH_ALEN);
  			os_memcpy(entry->pmkid, pmkid, 16);
  			entry->next = drv->pmkid;
  			drv->pmkid = entry;
  		}
  	}
  
  	return wpa_driver_ndis_set_pmkid(drv);
  }
  
  
  static int wpa_driver_ndis_remove_pmkid(void *priv,
  					struct wpa_pmkid_params *params)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	struct ndis_pmkid_entry *entry, *prev;
  	const u8 *bssid = params->bssid;
  	const u8 *pmkid = params->pmkid;
  
  	if (!bssid || !pmkid)
  		return -1;
  	if (drv->no_of_pmkid == 0)
  		return 0;
  
  	entry = drv->pmkid;
  	prev = NULL;
  	while (entry) {
  		if (os_memcmp(entry->bssid, bssid, ETH_ALEN) == 0 &&
  		    os_memcmp(entry->pmkid, pmkid, 16) == 0) {
  			if (prev)
  				prev->next = entry->next;
  			else
  				drv->pmkid = entry->next;
  			os_free(entry);
  			break;
  		}
  		prev = entry;
  		entry = entry->next;
  	}
  	return wpa_driver_ndis_set_pmkid(drv);
  }
  
  
  static int wpa_driver_ndis_flush_pmkid(void *priv)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	NDIS_802_11_PMKID p;
  	struct ndis_pmkid_entry *pmkid, *prev;
  	int prev_authmode, ret;
  
  	if (drv->no_of_pmkid == 0)
  		return 0;
  
  	pmkid = drv->pmkid;
  	drv->pmkid = NULL;
  	while (pmkid) {
  		prev = pmkid;
  		pmkid = pmkid->next;
  		os_free(prev);
  	}
  
  	/*
  	 * Some drivers may refuse OID_802_11_PMKID if authMode is not set to
  	 * WPA2, so change authMode temporarily, if needed.
  	 */
  	prev_authmode = ndis_get_auth_mode(drv);
  	if (prev_authmode != Ndis802_11AuthModeWPA2)
  		ndis_set_auth_mode(drv, Ndis802_11AuthModeWPA2);
  
  	os_memset(&p, 0, sizeof(p));
  	p.Length = 8;
  	p.BSSIDInfoCount = 0;
  	wpa_hexdump(MSG_MSGDUMP, "NDIS: OID_802_11_PMKID (flush)",
  		    (u8 *) &p, 8);
  	ret = ndis_set_oid(drv, OID_802_11_PMKID, (char *) &p, 8);
  
  	if (prev_authmode != Ndis802_11AuthModeWPA2)
  		ndis_set_auth_mode(drv, prev_authmode);
  
  	return ret;
  }
  
  
  static int wpa_driver_ndis_get_associnfo(struct wpa_driver_ndis_data *drv)
  {
  	char buf[512], *pos;
  	NDIS_802_11_ASSOCIATION_INFORMATION *ai;
  	int len;
  	union wpa_event_data data;
  	NDIS_802_11_BSSID_LIST_EX *b;
  	size_t blen, i;
  
  	len = ndis_get_oid(drv, OID_802_11_ASSOCIATION_INFORMATION, buf,
  			   sizeof(buf));
  	if (len < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: failed to get association "
  			   "information");
  		return -1;
  	}
  	if (len > sizeof(buf)) {
  		/* Some drivers seem to be producing incorrect length for this
  		 * data. Limit the length to the current buffer size to avoid
  		 * crashing in hexdump. The data seems to be otherwise valid,
  		 * so better try to use it. */
  		wpa_printf(MSG_DEBUG, "NDIS: ignored bogus association "
  			   "information length %d", len);
  		len = ndis_get_oid(drv, OID_802_11_ASSOCIATION_INFORMATION,
  				   buf, sizeof(buf));
  		if (len < -1) {
  			wpa_printf(MSG_DEBUG, "NDIS: re-reading association "
  				   "information failed");
  			return -1;
  		}
  		if (len > sizeof(buf)) {
  			wpa_printf(MSG_DEBUG, "NDIS: ignored bogus association"
  				   " information length %d (re-read)", len);
  			len = sizeof(buf);
  		}
  	}
  	wpa_hexdump(MSG_MSGDUMP, "NDIS: association information",
  		    (u8 *) buf, len);
  	if (len < sizeof(*ai)) {
  		wpa_printf(MSG_DEBUG, "NDIS: too short association "
  			   "information");
  		return -1;
  	}
  	ai = (NDIS_802_11_ASSOCIATION_INFORMATION *) buf;
  	wpa_printf(MSG_DEBUG, "NDIS: ReqFixed=0x%x RespFixed=0x%x off_req=%d "
  		   "off_resp=%d len_req=%d len_resp=%d",
  		   ai->AvailableRequestFixedIEs, ai->AvailableResponseFixedIEs,
  		   (int) ai->OffsetRequestIEs, (int) ai->OffsetResponseIEs,
  		   (int) ai->RequestIELength, (int) ai->ResponseIELength);
  
  	if (ai->OffsetRequestIEs + ai->RequestIELength > (unsigned) len ||
  	    ai->OffsetResponseIEs + ai->ResponseIELength > (unsigned) len) {
  		wpa_printf(MSG_DEBUG, "NDIS: association information - "
  			   "IE overflow");
  		return -1;
  	}
  
  	wpa_hexdump(MSG_MSGDUMP, "NDIS: Request IEs",
  		    (u8 *) buf + ai->OffsetRequestIEs, ai->RequestIELength);
  	wpa_hexdump(MSG_MSGDUMP, "NDIS: Response IEs",
  		    (u8 *) buf + ai->OffsetResponseIEs, ai->ResponseIELength);
  
  	os_memset(&data, 0, sizeof(data));
  	data.assoc_info.req_ies = (u8 *) buf + ai->OffsetRequestIEs;
  	data.assoc_info.req_ies_len = ai->RequestIELength;
  	data.assoc_info.resp_ies = (u8 *) buf + ai->OffsetResponseIEs;
  	data.assoc_info.resp_ies_len = ai->ResponseIELength;
  
  	blen = 65535;
  	b = os_zalloc(blen);
  	if (b == NULL)
  		goto skip_scan_results;
  	len = ndis_get_oid(drv, OID_802_11_BSSID_LIST, (char *) b, blen);
  	if (len < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: failed to get scan results");
  		os_free(b);
  		b = NULL;
  		goto skip_scan_results;
  	}
  	wpa_printf(MSG_DEBUG, "NDIS: %d BSSID items to process for AssocInfo",
  		   (unsigned int) b->NumberOfItems);
  
  	pos = (char *) &b->Bssid[0];
  	for (i = 0; i < b->NumberOfItems; i++) {
  		NDIS_WLAN_BSSID_EX *bss = (NDIS_WLAN_BSSID_EX *) pos;
  		if (os_memcmp(drv->bssid, bss->MacAddress, ETH_ALEN) == 0 &&
  		    bss->IELength > sizeof(NDIS_802_11_FIXED_IEs)) {
  			data.assoc_info.beacon_ies =
  				((u8 *) bss->IEs) +
  				sizeof(NDIS_802_11_FIXED_IEs);
  			data.assoc_info.beacon_ies_len =
  				bss->IELength - sizeof(NDIS_802_11_FIXED_IEs);
  			wpa_hexdump(MSG_MSGDUMP, "NDIS: Beacon IEs",
  				    data.assoc_info.beacon_ies,
  				    data.assoc_info.beacon_ies_len);
  			break;
  		}
  		pos += bss->Length;
  		if (pos > (char *) b + blen)
  			break;
  	}
  
  skip_scan_results:
  	wpa_supplicant_event(drv->ctx, EVENT_ASSOCINFO, &data);
  
  	os_free(b);
  
  	return 0;
  }
  
  
  static void wpa_driver_ndis_poll_timeout(void *eloop_ctx, void *timeout_ctx)
  {
  	struct wpa_driver_ndis_data *drv = eloop_ctx;
  	u8 bssid[ETH_ALEN];
  	int poll;
  
  	if (drv->wired)
  		return;
  
  	if (wpa_driver_ndis_get_bssid(drv, bssid)) {
  		/* Disconnected */
  		if (!is_zero_ether_addr(drv->bssid)) {
  			os_memset(drv->bssid, 0, ETH_ALEN);
  			wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
  		}
  	} else {
  		/* Connected */
  		if (os_memcmp(drv->bssid, bssid, ETH_ALEN) != 0) {
  			os_memcpy(drv->bssid, bssid, ETH_ALEN);
  			wpa_driver_ndis_get_associnfo(drv);
  			wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
  		}
  	}
  
  	/* When using integrated NDIS event receiver, we can skip BSSID
  	 * polling when using infrastructure network. However, when using
  	 * IBSS mode, many driver do not seem to generate connection event,
  	 * so we need to enable BSSID polling to figure out when IBSS network
  	 * has been formed.
  	 */
  	poll = drv->mode == IEEE80211_MODE_IBSS;
  #ifndef CONFIG_NDIS_EVENTS_INTEGRATED
  #ifndef _WIN32_WCE
  	poll = 1;
  #endif /* _WIN32_WCE */
  #endif /* CONFIG_NDIS_EVENTS_INTEGRATED */
  
  	if (poll) {
  		eloop_register_timeout(1, 0, wpa_driver_ndis_poll_timeout,
  					drv, NULL);
  	}
  }
  
  
  static void wpa_driver_ndis_poll(void *priv)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	eloop_cancel_timeout(wpa_driver_ndis_poll_timeout, drv, NULL);
  	wpa_driver_ndis_poll_timeout(drv, NULL);
  }
  
  
  /* Called when driver generates Media Connect Event by calling
   * NdisMIndicateStatus() with NDIS_STATUS_MEDIA_CONNECT */
  void wpa_driver_ndis_event_connect(struct wpa_driver_ndis_data *drv)
  {
  	wpa_printf(MSG_DEBUG, "NDIS: Media Connect Event");
  	if (wpa_driver_ndis_get_bssid(drv, drv->bssid) == 0) {
  		wpa_driver_ndis_get_associnfo(drv);
  		wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
  	}
  }
  
  
  /* Called when driver generates Media Disconnect Event by calling
   * NdisMIndicateStatus() with NDIS_STATUS_MEDIA_DISCONNECT */
  void wpa_driver_ndis_event_disconnect(struct wpa_driver_ndis_data *drv)
  {
  	wpa_printf(MSG_DEBUG, "NDIS: Media Disconnect Event");
  	os_memset(drv->bssid, 0, ETH_ALEN);
  	wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
  }
  
  
  static void wpa_driver_ndis_event_auth(struct wpa_driver_ndis_data *drv,
  				       const u8 *data, size_t data_len)
  {
  	NDIS_802_11_AUTHENTICATION_REQUEST *req;
  	int pairwise = 0, group = 0;
  	union wpa_event_data event;
  
  	if (data_len < sizeof(*req)) {
  		wpa_printf(MSG_DEBUG, "NDIS: Too short Authentication Request "
  			   "Event (len=%d)", data_len);
  		return;
  	}
  	req = (NDIS_802_11_AUTHENTICATION_REQUEST *) data;
  
  	wpa_printf(MSG_DEBUG, "NDIS: Authentication Request Event: "
  		   "Bssid " MACSTR " Flags 0x%x",
  		   MAC2STR(req->Bssid), (int) req->Flags);
  
  	if ((req->Flags & NDIS_802_11_AUTH_REQUEST_PAIRWISE_ERROR) ==
  	    NDIS_802_11_AUTH_REQUEST_PAIRWISE_ERROR)
  		pairwise = 1;
  	else if ((req->Flags & NDIS_802_11_AUTH_REQUEST_GROUP_ERROR) ==
  	    NDIS_802_11_AUTH_REQUEST_GROUP_ERROR)
  		group = 1;
  
  	if (pairwise || group) {
  		os_memset(&event, 0, sizeof(event));
  		event.michael_mic_failure.unicast = pairwise;
  		wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE,
  				     &event);
  	}
  }
  
  
  static void wpa_driver_ndis_event_pmkid(struct wpa_driver_ndis_data *drv,
  					const u8 *data, size_t data_len)
  {
  	NDIS_802_11_PMKID_CANDIDATE_LIST *pmkid;
  	size_t i;
  	union wpa_event_data event;
  
  	if (data_len < 8) {
  		wpa_printf(MSG_DEBUG, "NDIS: Too short PMKID Candidate List "
  			   "Event (len=%d)", data_len);
  		return;
  	}
  	pmkid = (NDIS_802_11_PMKID_CANDIDATE_LIST *) data;
  	wpa_printf(MSG_DEBUG, "NDIS: PMKID Candidate List Event - Version %d "
  		   "NumCandidates %d",
  		   (int) pmkid->Version, (int) pmkid->NumCandidates);
  
  	if (pmkid->Version != 1) {
  		wpa_printf(MSG_DEBUG, "NDIS: Unsupported PMKID Candidate List "
  			   "Version %d", (int) pmkid->Version);
  		return;
  	}
  
  	if (data_len < 8 + pmkid->NumCandidates * sizeof(PMKID_CANDIDATE)) {
  		wpa_printf(MSG_DEBUG, "NDIS: PMKID Candidate List underflow");
  		return;
  	}
  
  	os_memset(&event, 0, sizeof(event));
  	for (i = 0; i < pmkid->NumCandidates; i++) {
  		PMKID_CANDIDATE *p = &pmkid->CandidateList[i];
  		wpa_printf(MSG_DEBUG, "NDIS: %d: " MACSTR " Flags 0x%x",
  			   i, MAC2STR(p->BSSID), (int) p->Flags);
  		os_memcpy(event.pmkid_candidate.bssid, p->BSSID, ETH_ALEN);
  		event.pmkid_candidate.index = i;
  		event.pmkid_candidate.preauth =
  			p->Flags & NDIS_802_11_PMKID_CANDIDATE_PREAUTH_ENABLED;
  		wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE,
  				     &event);
  	}
  }
  
  
  /* Called when driver calls NdisMIndicateStatus() with
   * NDIS_STATUS_MEDIA_SPECIFIC_INDICATION */
  void wpa_driver_ndis_event_media_specific(struct wpa_driver_ndis_data *drv,
  					  const u8 *data, size_t data_len)
  {
  	NDIS_802_11_STATUS_INDICATION *status;
  
  	if (data == NULL || data_len < sizeof(*status))
  		return;
  
  	wpa_hexdump(MSG_DEBUG, "NDIS: Media Specific Indication",
  		    data, data_len);
  
  	status = (NDIS_802_11_STATUS_INDICATION *) data;
  	data += sizeof(status);
  	data_len -= sizeof(status);
  
  	switch (status->StatusType) {
  	case Ndis802_11StatusType_Authentication:
  		wpa_driver_ndis_event_auth(drv, data, data_len);
  		break;
  	case Ndis802_11StatusType_PMKID_CandidateList:
  		wpa_driver_ndis_event_pmkid(drv, data, data_len);
  		break;
  	default:
  		wpa_printf(MSG_DEBUG, "NDIS: Unknown StatusType %d",
  			   (int) status->StatusType);
  		break;
  	}
  }
  
  
  /* Called when an adapter is added */
  void wpa_driver_ndis_event_adapter_arrival(struct wpa_driver_ndis_data *drv)
  {
  	union wpa_event_data event;
  	int i;
  
  	wpa_printf(MSG_DEBUG, "NDIS: Notify Adapter Arrival");
  
  	for (i = 0; i < 30; i++) {
  		/* Re-open Packet32/NDISUIO connection */
  		wpa_driver_ndis_adapter_close(drv);
  		if (wpa_driver_ndis_adapter_init(drv) < 0 ||
  		    wpa_driver_ndis_adapter_open(drv) < 0) {
  			wpa_printf(MSG_DEBUG, "NDIS: Driver re-initialization "
  				   "(%d) failed", i);
  			os_sleep(1, 0);
  		} else {
  			wpa_printf(MSG_DEBUG, "NDIS: Driver re-initialized");
  			break;
  		}
  	}
  
  	os_memset(&event, 0, sizeof(event));
  	os_strlcpy(event.interface_status.ifname, drv->ifname,
  		   sizeof(event.interface_status.ifname));
  	event.interface_status.ievent = EVENT_INTERFACE_ADDED;
  	wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
  }
  
  
  /* Called when an adapter is removed */
  void wpa_driver_ndis_event_adapter_removal(struct wpa_driver_ndis_data *drv)
  {
  	union wpa_event_data event;
  
  	wpa_printf(MSG_DEBUG, "NDIS: Notify Adapter Removal");
  	os_memset(&event, 0, sizeof(event));
  	os_strlcpy(event.interface_status.ifname, drv->ifname,
  		   sizeof(event.interface_status.ifname));
  	event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
  	wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
  }
  
  
  static void
  wpa_driver_ndis_get_wpa_capability(struct wpa_driver_ndis_data *drv)
  {
  	wpa_printf(MSG_DEBUG, "NDIS: verifying driver WPA capability");
  
  	if (ndis_set_auth_mode(drv, Ndis802_11AuthModeWPA) == 0 &&
  	    ndis_get_auth_mode(drv) == Ndis802_11AuthModeWPA) {
  		wpa_printf(MSG_DEBUG, "NDIS: WPA key management supported");
  		drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA;
  	}
  
  	if (ndis_set_auth_mode(drv, Ndis802_11AuthModeWPAPSK) == 0 &&
  	    ndis_get_auth_mode(drv) == Ndis802_11AuthModeWPAPSK) {
  		wpa_printf(MSG_DEBUG, "NDIS: WPA-PSK key management "
  			   "supported");
  		drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
  	}
  
  	if (ndis_set_encr_status(drv, Ndis802_11Encryption3Enabled) == 0 &&
  	    ndis_get_encr_status(drv) == Ndis802_11Encryption3KeyAbsent) {
  		wpa_printf(MSG_DEBUG, "NDIS: CCMP encryption supported");
  		drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
  	}
  
  	if (ndis_set_encr_status(drv, Ndis802_11Encryption2Enabled) == 0 &&
  	    ndis_get_encr_status(drv) == Ndis802_11Encryption2KeyAbsent) {
  		wpa_printf(MSG_DEBUG, "NDIS: TKIP encryption supported");
  		drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
  	}
  
  	if (ndis_set_encr_status(drv, Ndis802_11Encryption1Enabled) == 0 &&
  	    ndis_get_encr_status(drv) == Ndis802_11Encryption1KeyAbsent) {
  		wpa_printf(MSG_DEBUG, "NDIS: WEP encryption supported");
  		drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 |
  			WPA_DRIVER_CAPA_ENC_WEP104;
  	}
  
  	if (ndis_set_auth_mode(drv, Ndis802_11AuthModeShared) == 0 &&
  	    ndis_get_auth_mode(drv) == Ndis802_11AuthModeShared) {
  		drv->capa.auth |= WPA_DRIVER_AUTH_SHARED;
  	}
  
  	if (ndis_set_auth_mode(drv, Ndis802_11AuthModeOpen) == 0 &&
  	    ndis_get_auth_mode(drv) == Ndis802_11AuthModeOpen) {
  		drv->capa.auth |= WPA_DRIVER_AUTH_OPEN;
  	}
  
  	ndis_set_encr_status(drv, Ndis802_11EncryptionDisabled);
  
  	/* Could also verify OID_802_11_ADD_KEY error reporting and
  	 * support for OID_802_11_ASSOCIATION_INFORMATION. */
  
  	if (drv->capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA &&
  	    drv->capa.enc & (WPA_DRIVER_CAPA_ENC_TKIP |
  			     WPA_DRIVER_CAPA_ENC_CCMP)) {
  		wpa_printf(MSG_DEBUG, "NDIS: driver supports WPA");
  		drv->has_capability = 1;
  	} else {
  		wpa_printf(MSG_DEBUG, "NDIS: no WPA support found");
  	}
  
  	wpa_printf(MSG_DEBUG, "NDIS: driver capabilities: key_mgmt 0x%x "
  		   "enc 0x%x auth 0x%x",
  		   drv->capa.key_mgmt, drv->capa.enc, drv->capa.auth);
  }
  
  
  static void wpa_driver_ndis_get_capability(struct wpa_driver_ndis_data *drv)
  {
  	char buf[512];
  	int len;
  	size_t i;
  	NDIS_802_11_CAPABILITY *c;
  
  	drv->capa.flags = WPA_DRIVER_FLAGS_DRIVER_IE;
  
  	len = ndis_get_oid(drv, OID_802_11_CAPABILITY, buf, sizeof(buf));
  	if (len < 0) {
  		wpa_driver_ndis_get_wpa_capability(drv);
  		return;
  	}
  
  	wpa_hexdump(MSG_MSGDUMP, "OID_802_11_CAPABILITY", (u8 *) buf, len);
  	c = (NDIS_802_11_CAPABILITY *) buf;
  	if (len < sizeof(*c) || c->Version != 2) {
  		wpa_printf(MSG_DEBUG, "NDIS: unsupported "
  			   "OID_802_11_CAPABILITY data");
  		return;
  	}
  	wpa_printf(MSG_DEBUG, "NDIS: Driver supports OID_802_11_CAPABILITY - "
  		   "NoOfPMKIDs %d NoOfAuthEncrPairs %d",
  		   (int) c->NoOfPMKIDs,
  		   (int) c->NoOfAuthEncryptPairsSupported);
  	drv->has_capability = 1;
  	drv->no_of_pmkid = c->NoOfPMKIDs;
  	for (i = 0; i < c->NoOfAuthEncryptPairsSupported; i++) {
  		NDIS_802_11_AUTHENTICATION_ENCRYPTION *ae;
  		ae = &c->AuthenticationEncryptionSupported[i];
  		if ((char *) (ae + 1) > buf + len) {
  			wpa_printf(MSG_DEBUG, "NDIS: auth/encr pair list "
  				   "overflow");
  			break;
  		}
  		wpa_printf(MSG_MSGDUMP, "NDIS: %d - auth %d encr %d",
  			   i, (int) ae->AuthModeSupported,
  			   (int) ae->EncryptStatusSupported);
  		switch (ae->AuthModeSupported) {
  		case Ndis802_11AuthModeOpen:
  			drv->capa.auth |= WPA_DRIVER_AUTH_OPEN;
  			break;
  		case Ndis802_11AuthModeShared:
  			drv->capa.auth |= WPA_DRIVER_AUTH_SHARED;
  			break;
  		case Ndis802_11AuthModeWPA:
  			drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA;
  			break;
  		case Ndis802_11AuthModeWPAPSK:
  			drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
  			break;
  		case Ndis802_11AuthModeWPA2:
  			drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA2;
  			break;
  		case Ndis802_11AuthModeWPA2PSK:
  			drv->capa.key_mgmt |=
  				WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
  			break;
  		case Ndis802_11AuthModeWPANone:
  			drv->capa.key_mgmt |=
  				WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE;
  			break;
  		default:
  			break;
  		}
  		switch (ae->EncryptStatusSupported) {
  		case Ndis802_11Encryption1Enabled:
  			drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40;
  			drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP104;
  			break;
  		case Ndis802_11Encryption2Enabled:
  			drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
  			break;
  		case Ndis802_11Encryption3Enabled:
  			drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
  			break;
  		default:
  			break;
  		}
  	}
  
  	wpa_printf(MSG_DEBUG, "NDIS: driver capabilities: key_mgmt 0x%x "
  		   "enc 0x%x auth 0x%x",
  		   drv->capa.key_mgmt, drv->capa.enc, drv->capa.auth);
  }
  
  
  static int wpa_driver_ndis_get_capa(void *priv, struct wpa_driver_capa *capa)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	if (!drv->has_capability)
  		return -1;
  	os_memcpy(capa, &drv->capa, sizeof(*capa));
  	return 0;
  }
  
  
  static const char * wpa_driver_ndis_get_ifname(void *priv)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	return drv->ifname;
  }
  
  
  static const u8 * wpa_driver_ndis_get_mac_addr(void *priv)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  	return drv->own_addr;
  }
  
  
  #ifdef _WIN32_WCE
  
  #define NDISUIO_MSG_SIZE (sizeof(NDISUIO_DEVICE_NOTIFICATION) + 512)
  
  static void ndisuio_notification_receive(void *eloop_data, void *user_ctx)
  {
  	struct wpa_driver_ndis_data *drv = eloop_data;
  	NDISUIO_DEVICE_NOTIFICATION *hdr;
  	u8 buf[NDISUIO_MSG_SIZE];
  	DWORD len, flags;
  
  	if (!ReadMsgQueue(drv->event_queue, buf, NDISUIO_MSG_SIZE, &len, 0,
  			  &flags)) {
  		wpa_printf(MSG_DEBUG, "ndisuio_notification_receive: "
  			   "ReadMsgQueue failed: %d", (int) GetLastError());
  		return;
  	}
  
  	if (len < sizeof(NDISUIO_DEVICE_NOTIFICATION)) {
  		wpa_printf(MSG_DEBUG, "ndisuio_notification_receive: "
  			   "Too short message (len=%d)", (int) len);
  		return;
  	}
  
  	hdr = (NDISUIO_DEVICE_NOTIFICATION *) buf;
  	wpa_printf(MSG_DEBUG, "NDIS: Notification received: len=%d type=0x%x",
  		   (int) len, hdr->dwNotificationType);
  
  	switch (hdr->dwNotificationType) {
  #ifdef NDISUIO_NOTIFICATION_ADAPTER_ARRIVAL
  	case NDISUIO_NOTIFICATION_ADAPTER_ARRIVAL:
  		wpa_printf(MSG_DEBUG, "NDIS: ADAPTER_ARRIVAL");
  		wpa_driver_ndis_event_adapter_arrival(drv);
  		break;
  #endif
  #ifdef NDISUIO_NOTIFICATION_ADAPTER_REMOVAL
  	case NDISUIO_NOTIFICATION_ADAPTER_REMOVAL:
  		wpa_printf(MSG_DEBUG, "NDIS: ADAPTER_REMOVAL");
  		wpa_driver_ndis_event_adapter_removal(drv);
  		break;
  #endif
  	case NDISUIO_NOTIFICATION_MEDIA_CONNECT:
  		wpa_printf(MSG_DEBUG, "NDIS: MEDIA_CONNECT");
  		SetEvent(drv->connected_event);
  		wpa_driver_ndis_event_connect(drv);
  		break;
  	case NDISUIO_NOTIFICATION_MEDIA_DISCONNECT:
  		ResetEvent(drv->connected_event);
  		wpa_printf(MSG_DEBUG, "NDIS: MEDIA_DISCONNECT");
  		wpa_driver_ndis_event_disconnect(drv);
  		break;
  	case NDISUIO_NOTIFICATION_MEDIA_SPECIFIC_NOTIFICATION:
  		wpa_printf(MSG_DEBUG, "NDIS: MEDIA_SPECIFIC_NOTIFICATION");
  #if _WIN32_WCE == 420 || _WIN32_WCE == 0x420
  		wpa_driver_ndis_event_media_specific(
  			drv, hdr->pvStatusBuffer, hdr->uiStatusBufferSize);
  #else
  		wpa_driver_ndis_event_media_specific(
  			drv, ((const u8 *) hdr) + hdr->uiOffsetToStatusBuffer,
  			(size_t) hdr->uiStatusBufferSize);
  #endif
  		break;
  	default:
  		wpa_printf(MSG_DEBUG, "NDIS: Unknown notification type 0x%x",
  			   hdr->dwNotificationType);
  		break;
  	}
  }
  
  
  static void ndisuio_notification_deinit(struct wpa_driver_ndis_data *drv)
  {
  	NDISUIO_REQUEST_NOTIFICATION req;
  
  	memset(&req, 0, sizeof(req));
  	req.hMsgQueue = drv->event_queue;
  	req.dwNotificationTypes = 0;
  
  	if (!DeviceIoControl(drv->ndisuio, IOCTL_NDISUIO_REQUEST_NOTIFICATION,
  			     &req, sizeof(req), NULL, 0, NULL, NULL)) {
  		wpa_printf(MSG_INFO, "ndisuio_notification_deinit: "
  			   "IOCTL_NDISUIO_REQUEST_NOTIFICATION failed: %d",
  			   (int) GetLastError());
  	}
  
  	if (!DeviceIoControl(drv->ndisuio, IOCTL_NDISUIO_CANCEL_NOTIFICATION,
  			     NULL, 0, NULL, 0, NULL, NULL)) {
  		wpa_printf(MSG_INFO, "ndisuio_notification_deinit: "
  			   "IOCTL_NDISUIO_CANCEL_NOTIFICATION failed: %d",
  			   (int) GetLastError());
  	}
  
  	if (drv->event_queue) {
  		eloop_unregister_event(drv->event_queue,
  				       sizeof(drv->event_queue));
  		CloseHandle(drv->event_queue);
  		drv->event_queue = NULL;
  	}
  
  	if (drv->connected_event) {
  		CloseHandle(drv->connected_event);
  		drv->connected_event = NULL;
  	}
  }
  
  
  static int ndisuio_notification_init(struct wpa_driver_ndis_data *drv)
  {
  	MSGQUEUEOPTIONS opt;
  	NDISUIO_REQUEST_NOTIFICATION req;
  
  	drv->connected_event =
  		CreateEvent(NULL, TRUE, FALSE, TEXT("WpaSupplicantConnected"));
  	if (drv->connected_event == NULL) {
  		wpa_printf(MSG_INFO, "ndisuio_notification_init: "
  			   "CreateEvent failed: %d",
  			   (int) GetLastError());
  		return -1;
  	}
  
  	memset(&opt, 0, sizeof(opt));
  	opt.dwSize = sizeof(opt);
  	opt.dwMaxMessages = 5;
  	opt.cbMaxMessage = NDISUIO_MSG_SIZE;
  	opt.bReadAccess = TRUE;
  
  	drv->event_queue = CreateMsgQueue(NULL, &opt);
  	if (drv->event_queue == NULL) {
  		wpa_printf(MSG_INFO, "ndisuio_notification_init: "
  			   "CreateMsgQueue failed: %d",
  			   (int) GetLastError());
  		ndisuio_notification_deinit(drv);
  		return -1;
  	}
  
  	memset(&req, 0, sizeof(req));
  	req.hMsgQueue = drv->event_queue;
  	req.dwNotificationTypes =
  #ifdef NDISUIO_NOTIFICATION_ADAPTER_ARRIVAL
  		NDISUIO_NOTIFICATION_ADAPTER_ARRIVAL |
  #endif
  #ifdef NDISUIO_NOTIFICATION_ADAPTER_REMOVAL
  		NDISUIO_NOTIFICATION_ADAPTER_REMOVAL |
  #endif
  		NDISUIO_NOTIFICATION_MEDIA_CONNECT |
  		NDISUIO_NOTIFICATION_MEDIA_DISCONNECT |
  		NDISUIO_NOTIFICATION_MEDIA_SPECIFIC_NOTIFICATION;
  
  	if (!DeviceIoControl(drv->ndisuio, IOCTL_NDISUIO_REQUEST_NOTIFICATION,
  			     &req, sizeof(req), NULL, 0, NULL, NULL)) {
  		wpa_printf(MSG_INFO, "ndisuio_notification_init: "
  			   "IOCTL_NDISUIO_REQUEST_NOTIFICATION failed: %d",
  			   (int) GetLastError());
  		ndisuio_notification_deinit(drv);
  		return -1;
  	}
  
  	eloop_register_event(drv->event_queue, sizeof(drv->event_queue),
  			     ndisuio_notification_receive, drv, NULL);
  
  	return 0;
  }
  #endif /* _WIN32_WCE */
  
  
  static int wpa_driver_ndis_get_names(struct wpa_driver_ndis_data *drv)
  {
  #ifdef CONFIG_USE_NDISUIO
  	NDISUIO_QUERY_BINDING *b;
  	size_t blen = sizeof(*b) + 1024;
  	int i, error, found = 0;
  	DWORD written;
  	char name[256], desc[256], *dpos;
  	WCHAR *pos;
  	size_t j, len, dlen;
  
  	b = os_malloc(blen);
  	if (b == NULL)
  		return -1;
  
  	for (i = 0; ; i++) {
  		os_memset(b, 0, blen);
  		b->BindingIndex = i;
  		if (!DeviceIoControl(drv->ndisuio, IOCTL_NDISUIO_QUERY_BINDING,
  				     b, sizeof(NDISUIO_QUERY_BINDING), b, blen,
  				     &written, NULL)) {
  			error = (int) GetLastError();
  			if (error == ERROR_NO_MORE_ITEMS)
  				break;
  			wpa_printf(MSG_DEBUG, "IOCTL_NDISUIO_QUERY_BINDING "
  				   "failed: %d", error);
  			break;
  		}
  
  		pos = (WCHAR *) ((char *) b + b->DeviceNameOffset);
  		len = b->DeviceNameLength;
  		if (len >= sizeof(name))
  			len = sizeof(name) - 1;
  		for (j = 0; j < len; j++)
  			name[j] = (char) pos[j];
  		name[len] = '\0';
  
  		pos = (WCHAR *) ((char *) b + b->DeviceDescrOffset);
  		len = b->DeviceDescrLength;
  		if (len >= sizeof(desc))
  			len = sizeof(desc) - 1;
  		for (j = 0; j < len; j++)
  			desc[j] = (char) pos[j];
  		desc[len] = '\0';
  
  		wpa_printf(MSG_DEBUG, "NDIS: %d - %s - %s", i, name, desc);
  
  		if (os_strstr(name, drv->ifname)) {
  			wpa_printf(MSG_DEBUG, "NDIS: Interface name match");
  			found = 1;
  			break;
  		}
  
  		if (os_strncmp(desc, drv->ifname, os_strlen(drv->ifname)) == 0)
  		{
  			wpa_printf(MSG_DEBUG, "NDIS: Interface description "
  				   "match");
  			found = 1;
  			break;
  		}
  	}
  
  	if (!found) {
  		wpa_printf(MSG_DEBUG, "NDIS: Could not find interface '%s'",
  			   drv->ifname);
  		os_free(b);
  		return -1;
  	}
  
  	os_strlcpy(drv->ifname,
  		   os_strncmp(name, "\\DEVICE\\", 8) == 0 ? name + 8 : name,
  		   sizeof(drv->ifname));
  #ifdef _WIN32_WCE
  	drv->adapter_name = wpa_strdup_tchar(drv->ifname);
  	if (drv->adapter_name == NULL) {
  		wpa_printf(MSG_ERROR, "NDIS: Failed to allocate memory for "
  			   "adapter name");
  		os_free(b);
  		return -1;
  	}
  #endif /* _WIN32_WCE */
  
  	dpos = os_strstr(desc, " - ");
  	if (dpos)
  		dlen = dpos - desc;
  	else
  		dlen = os_strlen(desc);
  	drv->adapter_desc = dup_binstr(desc, dlen);
  	os_free(b);
  	if (drv->adapter_desc == NULL)
  		return -1;
  
  	wpa_printf(MSG_DEBUG, "NDIS: Adapter description prefix '%s'",
  		   drv->adapter_desc);
  
  	return 0;
  #else /* CONFIG_USE_NDISUIO */
  	PTSTR _names;
  	char *names, *pos, *pos2;
  	ULONG len;
  	BOOLEAN res;
  #define MAX_ADAPTERS 32
  	char *name[MAX_ADAPTERS];
  	char *desc[MAX_ADAPTERS];
  	int num_name, num_desc, i, found_name, found_desc;
  	size_t dlen;
  
  	wpa_printf(MSG_DEBUG, "NDIS: Packet.dll version: %s",
  		   PacketGetVersion());
  
  	len = 8192;
  	_names = os_zalloc(len);
  	if (_names == NULL)
  		return -1;
  
  	res = PacketGetAdapterNames(_names, &len);
  	if (!res && len > 8192) {
  		os_free(_names);
  		_names = os_zalloc(len);
  		if (_names == NULL)
  			return -1;
  		res = PacketGetAdapterNames(_names, &len);
  	}
  
  	if (!res) {
  		wpa_printf(MSG_ERROR, "NDIS: Failed to get adapter list "
  			   "(PacketGetAdapterNames)");
  		os_free(_names);
  		return -1;
  	}
  
  	names = (char *) _names;
  	if (names[0] && names[1] == '\0' && names[2] && names[3] == '\0') {
  		wpa_printf(MSG_DEBUG, "NDIS: Looks like adapter names are in "
  			   "UNICODE");
  		/* Convert to ASCII */
  		pos2 = pos = names;
  		while (pos2 < names + len) {
  			if (pos2[0] == '\0' && pos2[1] == '\0' &&
  			    pos2[2] == '\0' && pos2[3] == '\0') {
  				pos2 += 4;
  				break;
  			}
  			*pos++ = pos2[0];
  			pos2 += 2;
  		}
  		os_memcpy(pos + 2, names, pos - names);
  		pos += 2;
  	} else
  		pos = names;
  
  	num_name = 0;
  	while (pos < names + len) {
  		name[num_name] = pos;
  		while (*pos && pos < names + len)
  			pos++;
  		if (pos + 1 >= names + len) {
  			os_free(names);
  			return -1;
  		}
  		pos++;
  		num_name++;
  		if (num_name >= MAX_ADAPTERS) {
  			wpa_printf(MSG_DEBUG, "NDIS: Too many adapters");
  			os_free(names);
  			return -1;
  		}
  		if (*pos == '\0') {
  			wpa_printf(MSG_DEBUG, "NDIS: %d adapter names found",
  				   num_name);
  			pos++;
  			break;
  		}
  	}
  
  	num_desc = 0;
  	while (pos < names + len) {
  		desc[num_desc] = pos;
  		while (*pos && pos < names + len)
  			pos++;
  		if (pos + 1 >= names + len) {
  			os_free(names);
  			return -1;
  		}
  		pos++;
  		num_desc++;
  		if (num_desc >= MAX_ADAPTERS) {
  			wpa_printf(MSG_DEBUG, "NDIS: Too many adapter "
  				   "descriptions");
  			os_free(names);
  			return -1;
  		}
  		if (*pos == '\0') {
  			wpa_printf(MSG_DEBUG, "NDIS: %d adapter descriptions "
  				   "found", num_name);
  			pos++;
  			break;
  		}
  	}
  
  	/*
  	 * Windows 98 with Packet.dll 3.0 alpha3 does not include adapter
  	 * descriptions. Fill in dummy descriptors to work around this.
  	 */
  	while (num_desc < num_name)
  		desc[num_desc++] = "dummy description";
  
  	if (num_name != num_desc) {
  		wpa_printf(MSG_DEBUG, "NDIS: mismatch in adapter name and "
  			   "description counts (%d != %d)",
  			   num_name, num_desc);
  		os_free(names);
  		return -1;
  	}
  
  	found_name = found_desc = -1;
  	for (i = 0; i < num_name; i++) {
  		wpa_printf(MSG_DEBUG, "NDIS: %d - %s - %s",
  			   i, name[i], desc[i]);
  		if (found_name == -1 && os_strstr(name[i], drv->ifname))
  			found_name = i;
  		if (found_desc == -1 &&
  		    os_strncmp(desc[i], drv->ifname, os_strlen(drv->ifname)) ==
  		    0)
  			found_desc = i;
  	}
  
  	if (found_name < 0 && found_desc >= 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: Matched interface '%s' based on "
  			   "description '%s'",
  			   name[found_desc], desc[found_desc]);
  		found_name = found_desc;
  		os_strlcpy(drv->ifname,
  			   os_strncmp(name[found_desc], "\\Device\\NPF_", 12)
  			   == 0 ? name[found_desc] + 12 : name[found_desc],
  			   sizeof(drv->ifname));
  	}
  
  	if (found_name < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: Could not find interface '%s'",
  			   drv->ifname);
  		os_free(names);
  		return -1;
  	}
  
  	i = found_name;
  	pos = os_strrchr(desc[i], '(');
  	if (pos) {
  		dlen = pos - desc[i];
  		pos--;
  		if (pos > desc[i] && *pos == ' ')
  			dlen--;
  	} else {
  		dlen = os_strlen(desc[i]);
  	}
  	drv->adapter_desc = dup_binstr(desc[i], dlen);
  	os_free(names);
  	if (drv->adapter_desc == NULL)
  		return -1;
  
  	wpa_printf(MSG_DEBUG, "NDIS: Adapter description prefix '%s'",
  		   drv->adapter_desc);
  
  	return 0;
  #endif /* CONFIG_USE_NDISUIO */
  }
  
  
  #if defined(CONFIG_NATIVE_WINDOWS) || defined(__CYGWIN__)
  #ifndef _WIN32_WCE
  /*
   * These structures are undocumented for WinXP; only WinCE version is
   * documented. These would be included wzcsapi.h if it were available. Some
   * changes here have been needed to make the structures match with WinXP SP2.
   * It is unclear whether these work with any other version.
   */
  
  typedef struct {
  	LPWSTR wszGuid;
  } INTF_KEY_ENTRY, *PINTF_KEY_ENTRY;
  
  typedef struct {
  	DWORD dwNumIntfs;
  	PINTF_KEY_ENTRY pIntfs;
  } INTFS_KEY_TABLE, *PINTFS_KEY_TABLE;
  
  typedef struct {
  	DWORD dwDataLen;
  	LPBYTE pData;
  } RAW_DATA, *PRAW_DATA;
  
  typedef struct {
  	LPWSTR wszGuid;
  	LPWSTR wszDescr;
  	ULONG ulMediaState;
  	ULONG ulMediaType;
  	ULONG ulPhysicalMediaType;
  	INT nInfraMode;
  	INT nAuthMode;
  	INT nWepStatus;
  #ifndef _WIN32_WCE
  	u8 pad[2]; /* why is this needed? */
  #endif /* _WIN32_WCE */
  	DWORD dwCtlFlags;
  	DWORD dwCapabilities; /* something added for WinXP SP2(?) */
  	RAW_DATA rdSSID;
  	RAW_DATA rdBSSID;
  	RAW_DATA rdBSSIDList;
  	RAW_DATA rdStSSIDList;
  	RAW_DATA rdCtrlData;
  #ifdef UNDER_CE
  	BOOL bInitialized;
  #endif
  	DWORD nWPAMCastCipher;
  	/* add some extra buffer for later additions since this interface is
  	 * far from stable */
  	u8 later_additions[100];
  } INTF_ENTRY, *PINTF_ENTRY;
  
  #define INTF_ALL 0xffffffff
  #define INTF_ALL_FLAGS 0x0000ffff
  #define INTF_CTLFLAGS 0x00000010
  #define INTFCTL_ENABLED 0x8000
  #endif /* _WIN32_WCE */
  
  
  #ifdef _WIN32_WCE
  static int wpa_driver_ndis_rebind_adapter(struct wpa_driver_ndis_data *drv)
  {
  	HANDLE ndis;
  	TCHAR multi[100];
  	int len;
  
  	len = _tcslen(drv->adapter_name);
  	if (len > 80)
  		return -1;
  
  	ndis = CreateFile(DD_NDIS_DEVICE_NAME, GENERIC_READ | GENERIC_WRITE,
  			  0, NULL, OPEN_EXISTING, 0, NULL);
  	if (ndis == INVALID_HANDLE_VALUE) {
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to open file to NDIS "
  			   "device: %d", (int) GetLastError());
  		return -1;
  	}
  
  	len++;
  	memcpy(multi, drv->adapter_name, len * sizeof(TCHAR));
  	memcpy(&multi[len], TEXT("NDISUIO\0"), 9 * sizeof(TCHAR));
  	len += 9;
  
  	if (!DeviceIoControl(ndis, IOCTL_NDIS_REBIND_ADAPTER,
  			     multi, len * sizeof(TCHAR), NULL, 0, NULL, NULL))
  	{
  		wpa_printf(MSG_DEBUG, "NDIS: IOCTL_NDIS_REBIND_ADAPTER "
  			   "failed: 0x%x", (int) GetLastError());
  		wpa_hexdump_ascii(MSG_DEBUG, "NDIS: rebind multi_sz",
  				  (u8 *) multi, len * sizeof(TCHAR));
  		CloseHandle(ndis);
  		return -1;
  	}
  
  	CloseHandle(ndis);
  
  	wpa_printf(MSG_DEBUG, "NDIS: Requested NDIS rebind of NDISUIO "
  		   "protocol");
  
  	return 0;
  }
  #endif /* _WIN32_WCE */
  
  
  static int wpa_driver_ndis_set_wzc(struct wpa_driver_ndis_data *drv,
  				   int enable)
  {
  #ifdef _WIN32_WCE
  	HKEY hk, hk2;
  	LONG ret;
  	DWORD i, hnd, len;
  	TCHAR keyname[256], devname[256];
  
  #define WZC_DRIVER TEXT("Drivers\\BuiltIn\\ZeroConfig")
  
  	if (enable) {
  		HANDLE h;
  		h = ActivateDeviceEx(WZC_DRIVER, NULL, 0, NULL);
  		if (h == INVALID_HANDLE_VALUE || h == 0) {
  			wpa_printf(MSG_DEBUG, "NDIS: Failed to re-enable WZC "
  				   "- ActivateDeviceEx failed: %d",
  				   (int) GetLastError());
  			return -1;
  		}
  
  		wpa_printf(MSG_DEBUG, "NDIS: WZC re-enabled");
  		return wpa_driver_ndis_rebind_adapter(drv);
  	}
  
  	/*
  	 * Unfortunately, just disabling the WZC for an interface is not enough
  	 * to free NDISUIO for us, so need to disable and unload WZC completely
  	 * for now when using WinCE with NDISUIO. In addition, must request
  	 * NDISUIO protocol to be rebound to the adapter in order to free the
  	 * NDISUIO binding that WZC hold before us.
  	 */
  
  	/* Enumerate HKLM\Drivers\Active\* to find a handle to WZC. */
  	ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE, DEVLOAD_ACTIVE_KEY, 0, 0, &hk);
  	if (ret != ERROR_SUCCESS) {
  		wpa_printf(MSG_DEBUG, "NDIS: RegOpenKeyEx(DEVLOAD_ACTIVE_KEY) "
  			   "failed: %d %d", (int) ret, (int) GetLastError());
  		return -1;
  	}
  
  	for (i = 0; ; i++) {
  		len = sizeof(keyname);
  		ret = RegEnumKeyEx(hk, i, keyname, &len, NULL, NULL, NULL,
  				   NULL);
  		if (ret != ERROR_SUCCESS) {
  			wpa_printf(MSG_DEBUG, "NDIS: Could not find active "
  				   "WZC - assuming it is not running.");
  			RegCloseKey(hk);
  			return -1;
  		}
  
  		ret = RegOpenKeyEx(hk, keyname, 0, 0, &hk2);
  		if (ret != ERROR_SUCCESS) {
  			wpa_printf(MSG_DEBUG, "NDIS: RegOpenKeyEx(active dev) "
  				   "failed: %d %d",
  				   (int) ret, (int) GetLastError());
  			continue;
  		}
  
  		len = sizeof(devname);
  		ret = RegQueryValueEx(hk2, DEVLOAD_DEVKEY_VALNAME, NULL, NULL,
  				      (LPBYTE) devname, &len);
  		if (ret != ERROR_SUCCESS) {
  			wpa_printf(MSG_DEBUG, "NDIS: RegQueryValueEx("
  				   "DEVKEY_VALNAME) failed: %d %d",
  				   (int) ret, (int) GetLastError());
  			RegCloseKey(hk2);
  			continue;
  		}
  
  		if (_tcscmp(devname, WZC_DRIVER) == 0)
  			break;
  
  		RegCloseKey(hk2);
  	}
  
  	RegCloseKey(hk);
  
  	/* Found WZC - get handle to it. */
  	len = sizeof(hnd);
  	ret = RegQueryValueEx(hk2, DEVLOAD_HANDLE_VALNAME, NULL, NULL,
  			      (PUCHAR) &hnd, &len);
  	if (ret != ERROR_SUCCESS) {
  		wpa_printf(MSG_DEBUG, "NDIS: RegQueryValueEx(HANDLE_VALNAME) "
  			   "failed: %d %d", (int) ret, (int) GetLastError());
  		RegCloseKey(hk2);
  		return -1;
  	}
  
  	RegCloseKey(hk2);
  
  	/* Deactivate WZC */
  	if (!DeactivateDevice((HANDLE) hnd)) {
  		wpa_printf(MSG_DEBUG, "NDIS: DeactivateDevice failed: %d",
  			   (int) GetLastError());
  		return -1;
  	}
  
  	wpa_printf(MSG_DEBUG, "NDIS: Disabled WZC temporarily");
  	drv->wzc_disabled = 1;
  	return wpa_driver_ndis_rebind_adapter(drv);
  
  #else /* _WIN32_WCE */
  
  	HMODULE hm;
  	DWORD (WINAPI *wzc_enum_interf)(LPWSTR pSrvAddr,
  					PINTFS_KEY_TABLE pIntfs);
  	DWORD (WINAPI *wzc_query_interf)(LPWSTR pSrvAddr, DWORD dwInFlags,
  					 PINTF_ENTRY pIntf,
  					 LPDWORD pdwOutFlags);
  	DWORD (WINAPI *wzc_set_interf)(LPWSTR pSrvAddr, DWORD dwInFlags,
  				       PINTF_ENTRY pIntf, LPDWORD pdwOutFlags);
  	int ret = -1, j;
  	DWORD res;
  	INTFS_KEY_TABLE guids;
  	INTF_ENTRY intf;
  	char guid[128];
  	WCHAR *pos;
  	DWORD flags, i;
  
  	hm = LoadLibrary(TEXT("wzcsapi.dll"));
  	if (hm == NULL) {
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to load wzcsapi.dll (%u) "
  			   "- WZC probably not running",
  			   (unsigned int) GetLastError());
  		return -1;
  	}
  
  #ifdef _WIN32_WCE
  	wzc_enum_interf = (void *) GetProcAddressA(hm, "WZCEnumInterfaces");
  	wzc_query_interf = (void *) GetProcAddressA(hm, "WZCQueryInterface");
  	wzc_set_interf = (void *) GetProcAddressA(hm, "WZCSetInterface");
  #else /* _WIN32_WCE */
  	wzc_enum_interf = (void *) GetProcAddress(hm, "WZCEnumInterfaces");
  	wzc_query_interf = (void *) GetProcAddress(hm, "WZCQueryInterface");
  	wzc_set_interf = (void *) GetProcAddress(hm, "WZCSetInterface");
  #endif /* _WIN32_WCE */
  
  	if (wzc_enum_interf == NULL || wzc_query_interf == NULL ||
  	    wzc_set_interf == NULL) {
  		wpa_printf(MSG_DEBUG, "NDIS: WZCEnumInterfaces, "
  			   "WZCQueryInterface, or WZCSetInterface not found "
  			   "in wzcsapi.dll");
  		goto fail;
  	}
  
  	os_memset(&guids, 0, sizeof(guids));
  	res = wzc_enum_interf(NULL, &guids);
  	if (res != 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: WZCEnumInterfaces failed: %d; "
  			   "WZC service is apparently not running",
  			   (int) res);
  		goto fail;
  	}
  
  	wpa_printf(MSG_DEBUG, "NDIS: WZCEnumInterfaces: %d interfaces",
  		   (int) guids.dwNumIntfs);
  
  	for (i = 0; i < guids.dwNumIntfs; i++) {
  		pos = guids.pIntfs[i].wszGuid;
  		for (j = 0; j < sizeof(guid); j++) {
  			guid[j] = (char) *pos;
  			if (*pos == 0)
  				break;
  			pos++;
  		}
  		guid[sizeof(guid) - 1] = '\0';
  		wpa_printf(MSG_DEBUG, "NDIS: intfs %d GUID '%s'",
  			   (int) i, guid);
  		if (os_strstr(drv->ifname, guid) == NULL)
  			continue;
  
  		wpa_printf(MSG_DEBUG, "NDIS: Current interface found from "
  			   "WZC");
  		break;
  	}
  
  	if (i >= guids.dwNumIntfs) {
  		wpa_printf(MSG_DEBUG, "NDIS: Current interface not found from "
  			   "WZC");
  		goto fail;
  	}
  
  	os_memset(&intf, 0, sizeof(intf));
  	intf.wszGuid = guids.pIntfs[i].wszGuid;
  	/* Set flags to verify that the structure has not changed. */
  	intf.dwCtlFlags = -1;
  	flags = 0;
  	res = wzc_query_interf(NULL, INTFCTL_ENABLED, &intf, &flags);
  	if (res != 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: Could not query flags for the "
  			   "WZC interface: %d (0x%x)",
  			   (int) res, (int) res);
  		wpa_printf(MSG_DEBUG, "NDIS: GetLastError: %u",
  			   (unsigned int) GetLastError());
  		goto fail;
  	}
  
  	wpa_printf(MSG_DEBUG, "NDIS: WZC interface flags 0x%x dwCtlFlags 0x%x",
  		   (int) flags, (int) intf.dwCtlFlags);
  
  	if (intf.dwCtlFlags == -1) {
  		wpa_printf(MSG_DEBUG, "NDIS: Looks like wzcsapi has changed "
  			   "again - could not disable WZC");
  		wpa_hexdump(MSG_MSGDUMP, "NDIS: intf",
  			    (u8 *) &intf, sizeof(intf));
  		goto fail;
  	}
  
  	if (enable) {
  		if (!(intf.dwCtlFlags & INTFCTL_ENABLED)) {
  			wpa_printf(MSG_DEBUG, "NDIS: Enabling WZC for this "
  				   "interface");
  			intf.dwCtlFlags |= INTFCTL_ENABLED;
  			res = wzc_set_interf(NULL, INTFCTL_ENABLED, &intf,
  					     &flags);
  			if (res != 0) {
  				wpa_printf(MSG_DEBUG, "NDIS: Failed to enable "
  					   "WZC: %d (0x%x)",
  					   (int) res, (int) res);
  				wpa_printf(MSG_DEBUG, "NDIS: GetLastError: %u",
  					   (unsigned int) GetLastError());
  				goto fail;
  			}
  			wpa_printf(MSG_DEBUG, "NDIS: Re-enabled WZC for this "
  				   "interface");
  			drv->wzc_disabled = 0;
  		}
  	} else {
  		if (intf.dwCtlFlags & INTFCTL_ENABLED) {
  			wpa_printf(MSG_DEBUG, "NDIS: Disabling WZC for this "
  				   "interface");
  			intf.dwCtlFlags &= ~INTFCTL_ENABLED;
  			res = wzc_set_interf(NULL, INTFCTL_ENABLED, &intf,
  					     &flags);
  			if (res != 0) {
  				wpa_printf(MSG_DEBUG, "NDIS: Failed to "
  					   "disable WZC: %d (0x%x)",
  					   (int) res, (int) res);
  				wpa_printf(MSG_DEBUG, "NDIS: GetLastError: %u",
  					   (unsigned int) GetLastError());
  				goto fail;
  			}
  			wpa_printf(MSG_DEBUG, "NDIS: Disabled WZC temporarily "
  				   "for this interface");
  			drv->wzc_disabled = 1;
  		} else {
  			wpa_printf(MSG_DEBUG, "NDIS: WZC was not enabled for "
  				   "this interface");
  		}
  	}
  
  	ret = 0;
  
  fail:
  	FreeLibrary(hm);
  
  	return ret;
  #endif /* _WIN32_WCE */
  }
  
  #else /* CONFIG_NATIVE_WINDOWS || __CYGWIN__ */
  
  static int wpa_driver_ndis_set_wzc(struct wpa_driver_ndis_data *drv,
  				   int enable)
  {
  	return 0;
  }
  
  #endif /* CONFIG_NATIVE_WINDOWS || __CYGWIN__ */
  
  
  #ifdef CONFIG_USE_NDISUIO
  /*
   * l2_packet_ndis.c is sharing the same handle to NDISUIO, so we must be able
   * to export this handle. This is somewhat ugly, but there is no better
   * mechanism available to pass data from driver interface to l2_packet wrapper.
   */
  static HANDLE driver_ndis_ndisuio_handle = INVALID_HANDLE_VALUE;
  
  HANDLE driver_ndis_get_ndisuio_handle(void)
  {
  	return driver_ndis_ndisuio_handle;
  }
  #endif /* CONFIG_USE_NDISUIO */
  
  
  static int wpa_driver_ndis_adapter_init(struct wpa_driver_ndis_data *drv)
  {
  #ifdef CONFIG_USE_NDISUIO
  #ifndef _WIN32_WCE
  #define NDISUIO_DEVICE_NAME TEXT("\\\\.\\\\Ndisuio")
  	DWORD written;
  #endif /* _WIN32_WCE */
  	drv->ndisuio = CreateFile(NDISUIO_DEVICE_NAME,
  				  GENERIC_READ | GENERIC_WRITE, 0, NULL,
  				  OPEN_EXISTING,
  				  FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
  				  INVALID_HANDLE_VALUE);
  	if (drv->ndisuio == INVALID_HANDLE_VALUE) {
  		wpa_printf(MSG_ERROR, "NDIS: Failed to open connection to "
  			   "NDISUIO: %d", (int) GetLastError());
  		return -1;
  	}
  	driver_ndis_ndisuio_handle = drv->ndisuio;
  
  #ifndef _WIN32_WCE
  	if (!DeviceIoControl(drv->ndisuio, IOCTL_NDISUIO_BIND_WAIT, NULL, 0,
  			     NULL, 0, &written, NULL)) {
  		wpa_printf(MSG_ERROR, "NDIS: IOCTL_NDISUIO_BIND_WAIT failed: "
  			   "%d", (int) GetLastError());
  		CloseHandle(drv->ndisuio);
  		drv->ndisuio = INVALID_HANDLE_VALUE;
  		return -1;
  	}
  #endif /* _WIN32_WCE */
  
  	return 0;
  #else /* CONFIG_USE_NDISUIO */
  	return 0;
  #endif /* CONFIG_USE_NDISUIO */
  }
  
  
  static int wpa_driver_ndis_adapter_open(struct wpa_driver_ndis_data *drv)
  {
  #ifdef CONFIG_USE_NDISUIO
  	DWORD written;
  #define MAX_NDIS_DEVICE_NAME_LEN 256
  	WCHAR ifname[MAX_NDIS_DEVICE_NAME_LEN];
  	size_t len, i, pos;
  	const char *prefix = "\\DEVICE\\";
  
  #ifdef _WIN32_WCE
  	pos = 0;
  #else /* _WIN32_WCE */
  	pos = 8;
  #endif /* _WIN32_WCE */
  	len = pos + os_strlen(drv->ifname);
  	if (len >= MAX_NDIS_DEVICE_NAME_LEN)
  		return -1;
  	for (i = 0; i < pos; i++)
  		ifname[i] = (WCHAR) prefix[i];
  	for (i = pos; i < len; i++)
  		ifname[i] = (WCHAR) drv->ifname[i - pos];
  	ifname[i] = L'\0';
  
  	if (!DeviceIoControl(drv->ndisuio, IOCTL_NDISUIO_OPEN_DEVICE,
  			     ifname, len * sizeof(WCHAR), NULL, 0, &written,
  			     NULL)) {
  		wpa_printf(MSG_ERROR, "NDIS: IOCTL_NDISUIO_OPEN_DEVICE "
  			   "failed: %d", (int) GetLastError());
  		wpa_hexdump_ascii(MSG_DEBUG, "NDIS: ifname",
  				  (const u8 *) ifname, len * sizeof(WCHAR));
  		CloseHandle(drv->ndisuio);
  		drv->ndisuio = INVALID_HANDLE_VALUE;
  		return -1;
  	}
  
  	wpa_printf(MSG_DEBUG, "NDIS: Opened NDISUIO device successfully");
  
  	return 0;
  #else /* CONFIG_USE_NDISUIO */
  	char ifname[128];
  	os_snprintf(ifname, sizeof(ifname), "\\Device\\NPF_%s", drv->ifname);
  	drv->adapter = PacketOpenAdapter(ifname);
  	if (drv->adapter == NULL) {
  		wpa_printf(MSG_DEBUG, "NDIS: PacketOpenAdapter failed for "
  			   "'%s'", ifname);
  		return -1;
  	}
  	return 0;
  #endif /* CONFIG_USE_NDISUIO */
  }
  
  
  static void wpa_driver_ndis_adapter_close(struct wpa_driver_ndis_data *drv)
  {
  #ifdef CONFIG_USE_NDISUIO
  	driver_ndis_ndisuio_handle = INVALID_HANDLE_VALUE;
  	if (drv->ndisuio != INVALID_HANDLE_VALUE)
  		CloseHandle(drv->ndisuio);
  #else /* CONFIG_USE_NDISUIO */
  	if (drv->adapter)
  		PacketCloseAdapter(drv->adapter);
  #endif /* CONFIG_USE_NDISUIO */
  }
  
  
  static int ndis_add_multicast(struct wpa_driver_ndis_data *drv)
  {
  	if (ndis_set_oid(drv, OID_802_3_MULTICAST_LIST,
  			 (const char *) pae_group_addr, ETH_ALEN) < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to add PAE group address "
  			   "to the multicast list");
  		return -1;
  	}
  
  	return 0;
  }
  
  
  static void * wpa_driver_ndis_init(void *ctx, const char *ifname)
  {
  	struct wpa_driver_ndis_data *drv;
  	u32 mode;
  
  	drv = os_zalloc(sizeof(*drv));
  	if (drv == NULL)
  		return NULL;
  	drv->ctx = ctx;
  	/*
  	 * Compatibility code to strip possible prefix from the GUID. Previous
  	 * versions include \Device\NPF_ prefix for all names, but the internal
  	 * interface name is now only the GUI. Both Packet32 and NDISUIO
  	 * prefixes are supported.
  	 */
  	if (os_strncmp(ifname, "\\Device\\NPF_", 12) == 0)
  		ifname += 12;
  	else if (os_strncmp(ifname, "\\DEVICE\\", 8) == 0)
  		ifname += 8;
  	os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
  
  	if (wpa_driver_ndis_adapter_init(drv) < 0) {
  		os_free(drv);
  		return NULL;
  	}
  
  	if (wpa_driver_ndis_get_names(drv) < 0) {
  		wpa_driver_ndis_adapter_close(drv);
  		os_free(drv);
  		return NULL;
  	}
  
  	wpa_driver_ndis_set_wzc(drv, 0);
  
  	if (wpa_driver_ndis_adapter_open(drv) < 0) {
  		wpa_driver_ndis_adapter_close(drv);
  		os_free(drv);
  		return NULL;
  	}
  
  	if (ndis_get_oid(drv, OID_802_3_CURRENT_ADDRESS,
  			 (char *) drv->own_addr, ETH_ALEN) < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: Get OID_802_3_CURRENT_ADDRESS "
  			   "failed");
  		wpa_driver_ndis_adapter_close(drv);
  		os_free(drv);
  		return NULL;
  	}
  	wpa_driver_ndis_get_capability(drv);
  
  	/* Make sure that the driver does not have any obsolete PMKID entries.
  	 */
  	wpa_driver_ndis_flush_pmkid(drv);
  
  	/*
  	 * Disconnect to make sure that driver re-associates if it was
  	 * connected.
  	 */
  	wpa_driver_ndis_disconnect(drv);
  
  	eloop_register_timeout(1, 0, wpa_driver_ndis_poll_timeout, drv, NULL);
  
  #ifdef CONFIG_NDIS_EVENTS_INTEGRATED
  	drv->events = ndis_events_init(&drv->events_pipe, &drv->event_avail,
  				       drv->ifname, drv->adapter_desc);
  	if (drv->events == NULL) {
  		wpa_driver_ndis_deinit(drv);
  		return NULL;
  	}
  	eloop_register_event(drv->event_avail, sizeof(drv->event_avail),
  			     wpa_driver_ndis_event_pipe_cb, drv, NULL);
  #endif /* CONFIG_NDIS_EVENTS_INTEGRATED */
  
  #ifdef _WIN32_WCE
  	if (ndisuio_notification_init(drv) < 0) {
  		wpa_driver_ndis_deinit(drv);
  		return NULL;
  	}
  #endif /* _WIN32_WCE */
  
  	/* Set mode here in case card was configured for ad-hoc mode
  	 * previously. */
  	mode = Ndis802_11Infrastructure;
  	if (ndis_set_oid(drv, OID_802_11_INFRASTRUCTURE_MODE,
  			 (char *) &mode, sizeof(mode)) < 0) {
  		char buf[8];
  		int res;
  		wpa_printf(MSG_DEBUG, "NDIS: Failed to set "
  			   "OID_802_11_INFRASTRUCTURE_MODE (%d)",
  			   (int) mode);
  		/* Try to continue anyway */
  
  		res = ndis_get_oid(drv, OID_DOT11_CURRENT_OPERATION_MODE, buf,
  				   sizeof(buf));
  		if (res > 0) {
  			wpa_printf(MSG_INFO, "NDIS: The driver seems to use "
  				   "Native 802.11 OIDs. These are not yet "
  				   "fully supported.");
  			drv->native80211 = 1;
  		} else if (!drv->has_capability || drv->capa.enc == 0) {
  			/*
  			 * Note: This will also happen with NDIS 6 drivers with
  			 * Vista.
  			 */
  			wpa_printf(MSG_DEBUG, "NDIS: Driver did not provide "
  				   "any wireless capabilities - assume it is "
  				   "a wired interface");
  			drv->wired = 1;
  			drv->capa.flags |= WPA_DRIVER_FLAGS_WIRED;
  			drv->has_capability = 1;
  			ndis_add_multicast(drv);
  		}
  	}
  
  	return drv;
  }
  
  
  static void wpa_driver_ndis_deinit(void *priv)
  {
  	struct wpa_driver_ndis_data *drv = priv;
  
  #ifdef CONFIG_NDIS_EVENTS_INTEGRATED
  	if (drv->events) {
  		eloop_unregister_event(drv->event_avail,
  				       sizeof(drv->event_avail));
  		ndis_events_deinit(drv->events);
  	}
  #endif /* CONFIG_NDIS_EVENTS_INTEGRATED */
  
  #ifdef _WIN32_WCE
  	ndisuio_notification_deinit(drv);
  #endif /* _WIN32_WCE */
  
  	eloop_cancel_timeout(wpa_driver_ndis_scan_timeout, drv, drv->ctx);
  	eloop_cancel_timeout(wpa_driver_ndis_poll_timeout, drv, NULL);
  	wpa_driver_ndis_flush_pmkid(drv);
  	wpa_driver_ndis_disconnect(drv);
  	if (wpa_driver_ndis_radio_off(drv) < 0) {
  		wpa_printf(MSG_DEBUG, "NDIS: failed to disassociate and turn "
  			   "radio off");
  	}
  
  	wpa_driver_ndis_adapter_close(drv);
  
  	if (drv->wzc_disabled)
  		wpa_driver_ndis_set_wzc(drv, 1);
  
  #ifdef _WIN32_WCE
  	os_free(drv->adapter_name);
  #endif /* _WIN32_WCE */
  	os_free(drv->adapter_desc);
  	os_free(drv);
  }
  
  
  static struct wpa_interface_info *
  wpa_driver_ndis_get_interfaces(void *global_priv)
  {
  	struct wpa_interface_info *iface = NULL, *niface;
  
  #ifdef CONFIG_USE_NDISUIO
  	NDISUIO_QUERY_BINDING *b;
  	size_t blen = sizeof(*b) + 1024;
  	int i, error;
  	DWORD written;
  	char name[256], desc[256];
  	WCHAR *pos;
  	size_t j, len;
  	HANDLE ndisuio;
  
  	ndisuio = CreateFile(NDISUIO_DEVICE_NAME,
  			     GENERIC_READ | GENERIC_WRITE, 0, NULL,
  			     OPEN_EXISTING,
  			     FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
  			     INVALID_HANDLE_VALUE);
  	if (ndisuio == INVALID_HANDLE_VALUE) {
  		wpa_printf(MSG_ERROR, "NDIS: Failed to open connection to "
  			   "NDISUIO: %d", (int) GetLastError());
  		return NULL;
  	}
  
  #ifndef _WIN32_WCE
  	if (!DeviceIoControl(ndisuio, IOCTL_NDISUIO_BIND_WAIT, NULL, 0,
  			     NULL, 0, &written, NULL)) {
  		wpa_printf(MSG_ERROR, "NDIS: IOCTL_NDISUIO_BIND_WAIT failed: "
  			   "%d", (int) GetLastError());
  		CloseHandle(ndisuio);
  		return NULL;
  	}
  #endif /* _WIN32_WCE */
  
  	b = os_malloc(blen);
  	if (b == NULL) {
  		CloseHandle(ndisuio);
  		return NULL;
  	}
  
  	for (i = 0; ; i++) {
  		os_memset(b, 0, blen);
  		b->BindingIndex = i;
  		if (!DeviceIoControl(ndisuio, IOCTL_NDISUIO_QUERY_BINDING,
  				     b, sizeof(NDISUIO_QUERY_BINDING), b, blen,
  				     &written, NULL)) {
  			error = (int) GetLastError();
  			if (error == ERROR_NO_MORE_ITEMS)
  				break;
  			wpa_printf(MSG_DEBUG, "IOCTL_NDISUIO_QUERY_BINDING "
  				   "failed: %d", error);
  			break;
  		}
  
  		pos = (WCHAR *) ((char *) b + b->DeviceNameOffset);
  		len = b->DeviceNameLength;
  		if (len >= sizeof(name))
  			len = sizeof(name) - 1;
  		for (j = 0; j < len; j++)
  			name[j] = (char) pos[j];
  		name[len] = '\0';
  
  		pos = (WCHAR *) ((char *) b + b->DeviceDescrOffset);
  		len = b->DeviceDescrLength;
  		if (len >= sizeof(desc))
  			len = sizeof(desc) - 1;
  		for (j = 0; j < len; j++)
  			desc[j] = (char) pos[j];
  		desc[len] = '\0';
  
  		wpa_printf(MSG_DEBUG, "NDIS: %d - %s - %s", i, name, desc);
  
  		niface = os_zalloc(sizeof(*niface));
  		if (niface == NULL)
  			break;
  		niface->drv_name = "ndis";
  		if (os_strncmp(name, "\\DEVICE\\", 8) == 0)
  			niface->ifname = os_strdup(name + 8);
  		else
  			niface->ifname = os_strdup(name);
  		if (niface->ifname == NULL) {
  			os_free(niface);
  			break;
  		}
  		niface->desc = os_strdup(desc);
  		niface->next = iface;
  		iface = niface;
  	}
  
  	os_free(b);
  	CloseHandle(ndisuio);
  #else /* CONFIG_USE_NDISUIO */
  	PTSTR _names;
  	char *names, *pos, *pos2;
  	ULONG len;
  	BOOLEAN res;
  	char *name[MAX_ADAPTERS];
  	char *desc[MAX_ADAPTERS];
  	int num_name, num_desc, i;
  
  	wpa_printf(MSG_DEBUG, "NDIS: Packet.dll version: %s",
  		   PacketGetVersion());
  
  	len = 8192;
  	_names = os_zalloc(len);
  	if (_names == NULL)
  		return NULL;
  
  	res = PacketGetAdapterNames(_names, &len);
  	if (!res && len > 8192) {
  		os_free(_names);
  		_names = os_zalloc(len);
  		if (_names == NULL)
  			return NULL;
  		res = PacketGetAdapterNames(_names, &len);
  	}
  
  	if (!res) {
  		wpa_printf(MSG_ERROR, "NDIS: Failed to get adapter list "
  			   "(PacketGetAdapterNames)");
  		os_free(_names);
  		return NULL;
  	}
  
  	names = (char *) _names;
  	if (names[0] && names[1] == '\0' && names[2] && names[3] == '\0') {
  		wpa_printf(MSG_DEBUG, "NDIS: Looks like adapter names are in "
  			   "UNICODE");
  		/* Convert to ASCII */
  		pos2 = pos = names;
  		while (pos2 < names + len) {
  			if (pos2[0] == '\0' && pos2[1] == '\0' &&
  			    pos2[2] == '\0' && pos2[3] == '\0') {
  				pos2 += 4;
  				break;
  			}
  			*pos++ = pos2[0];
  			pos2 += 2;
  		}
  		os_memcpy(pos + 2, names, pos - names);
  		pos += 2;
  	} else
  		pos = names;
  
  	num_name = 0;
  	while (pos < names + len) {
  		name[num_name] = pos;
  		while (*pos && pos < names + len)
  			pos++;
  		if (pos + 1 >= names + len) {
  			os_free(names);
  			return NULL;
  		}
  		pos++;
  		num_name++;
  		if (num_name >= MAX_ADAPTERS) {
  			wpa_printf(MSG_DEBUG, "NDIS: Too many adapters");
  			os_free(names);
  			return NULL;
  		}
  		if (*pos == '\0') {
  			wpa_printf(MSG_DEBUG, "NDIS: %d adapter names found",
  				   num_name);
  			pos++;
  			break;
  		}
  	}
  
  	num_desc = 0;
  	while (pos < names + len) {
  		desc[num_desc] = pos;
  		while (*pos && pos < names + len)
  			pos++;
  		if (pos + 1 >= names + len) {
  			os_free(names);
  			return NULL;
  		}
  		pos++;
  		num_desc++;
  		if (num_desc >= MAX_ADAPTERS) {
  			wpa_printf(MSG_DEBUG, "NDIS: Too many adapter "
  				   "descriptions");
  			os_free(names);
  			return NULL;
  		}
  		if (*pos == '\0') {
  			wpa_printf(MSG_DEBUG, "NDIS: %d adapter descriptions "
  				   "found", num_name);
  			pos++;
  			break;
  		}
  	}
  
  	/*
  	 * Windows 98 with Packet.dll 3.0 alpha3 does not include adapter
  	 * descriptions. Fill in dummy descriptors to work around this.
  	 */
  	while (num_desc < num_name)
  		desc[num_desc++] = "dummy description";
  
  	if (num_name != num_desc) {
  		wpa_printf(MSG_DEBUG, "NDIS: mismatch in adapter name and "
  			   "description counts (%d != %d)",
  			   num_name, num_desc);
  		os_free(names);
  		return NULL;
  	}
  
  	for (i = 0; i < num_name; i++) {
  		niface = os_zalloc(sizeof(*niface));
  		if (niface == NULL)
  			break;
  		niface->drv_name = "ndis";
  		if (os_strncmp(name[i], "\\Device\\NPF_", 12) == 0)
  			niface->ifname = os_strdup(name[i] + 12);
  		else
  			niface->ifname = os_strdup(name[i]);
  		if (niface->ifname == NULL) {
  			os_free(niface);
  			break;
  		}
  		niface->desc = os_strdup(desc[i]);
  		niface->next = iface;
  		iface = niface;
  	}
  
  #endif /* CONFIG_USE_NDISUIO */
  
  	return iface;
  }
  
  
  static const char *ndis_drv_name = "ndis";
  static const char *ndis_drv_desc = "Windows NDIS driver";
  
  struct wpa_driver_ops wpa_driver_ndis_ops;
  
  void driver_ndis_init_ops(void)
  {
  	os_memset(&wpa_driver_ndis_ops, 0, sizeof(wpa_driver_ndis_ops));
  	wpa_driver_ndis_ops.name = ndis_drv_name;
  	wpa_driver_ndis_ops.desc = ndis_drv_desc;
  	wpa_driver_ndis_ops.get_bssid = wpa_driver_ndis_get_bssid;
  	wpa_driver_ndis_ops.get_ssid = wpa_driver_ndis_get_ssid;
  	wpa_driver_ndis_ops.set_key = wpa_driver_ndis_set_key;
  	wpa_driver_ndis_ops.init = wpa_driver_ndis_init;
  	wpa_driver_ndis_ops.deinit = wpa_driver_ndis_deinit;
  	wpa_driver_ndis_ops.deauthenticate = wpa_driver_ndis_deauthenticate;
  	wpa_driver_ndis_ops.associate = wpa_driver_ndis_associate;
  	wpa_driver_ndis_ops.add_pmkid = wpa_driver_ndis_add_pmkid;
  	wpa_driver_ndis_ops.remove_pmkid = wpa_driver_ndis_remove_pmkid;
  	wpa_driver_ndis_ops.flush_pmkid = wpa_driver_ndis_flush_pmkid;
  	wpa_driver_ndis_ops.get_capa = wpa_driver_ndis_get_capa;
  	wpa_driver_ndis_ops.poll = wpa_driver_ndis_poll;
  	wpa_driver_ndis_ops.get_ifname = wpa_driver_ndis_get_ifname;
  	wpa_driver_ndis_ops.get_mac_addr = wpa_driver_ndis_get_mac_addr;
  	wpa_driver_ndis_ops.get_scan_results2 =
  		wpa_driver_ndis_get_scan_results;
  	wpa_driver_ndis_ops.get_interfaces = wpa_driver_ndis_get_interfaces;
  	wpa_driver_ndis_ops.scan2 = wpa_driver_ndis_scan;
  }
  