Leaked source code of windows server 2003
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

1102 lines
29 KiB

//
// UIOTEST.C
//
// Test program for tunmp.sys
//
// usage: UIOTEST [options] <devicename>
//
// options:
// -e: Enumerate devices
// -r: Read
// -w: Write (default)
// -l <length>: length of each packet (default: %d)\n", PacketLength
// -n <count>: number of packets (defaults to infinity)
// -m <MAC address> (defaults to local MAC)
//
#include <windows.h>
#include <winioctl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <ctype.h>
#include <malloc.h>
#include <winerror.h>
#include <winsock.h>
#include <ntddndis.h>
#include "tunuser.h"
#include "nuiouser.h"
#include <ndisguid.h>
#include <wmium.h>
#ifndef NDIS_STATUS
#define NDIS_STATUS ULONG
#endif
#if DBG
#define DEBUGP(stmt) printf stmt
#else
#define DEBUGP(stmt)
#endif
#define PRINTF(stmt) printf stmt
#ifndef MAC_ADDR_LEN
#define MAC_ADDR_LEN 6
#endif
#define MAX_NDIS_DEVICE_NAME_LEN 256
#define MAX_ADAPTER_NAME_LENGTH 512
#define DEVICE_PREFIX L"\\Device\\"
//DEFINE_GUID(GUID_NDIS_NOTIFY_DEVICE_POWER_ON, 0x5f81cfd0, 0xf046, 0x4342, 0xaf, 0x61, 0x89, 0x5a, 0xce, 0xda, 0xef, 0xd9);
//DEFINE_GUID(GUID_NDIS_NOTIFY_DEVICE_POWER_OFF, 0x81bc8189, 0xb026, 0x46ab, 0xb9, 0x64, 0xf1, 0x82, 0xe3, 0x42, 0x93, 0x4e);
//#include <initguid.h>
//DEFINE_GUID(GUID_NDIS_NOTIFY_DEVICE_POWER_ON_X, 0x5f81cfd0, 0xf046, 0x4342, 0xaf, 0x61, 0x89, 0x5a, 0xce, 0xda, 0xef, 0xd9);
//DEFINE_GUID(GUID_NDIS_NOTIFY_DEVICE_POWER_OFF_X, 0x81bc8189, 0xb026, 0x46ab, 0xb9, 0x64, 0xf1, 0x82, 0xe3, 0x42, 0x93, 0x4e);
LPGUID WmiEvent[] = {
(LPGUID) &GUID_NDIS_NOTIFY_ADAPTER_ARRIVAL,
(LPGUID) &GUID_NDIS_NOTIFY_ADAPTER_REMOVAL,
(LPGUID) &GUID_NDIS_NOTIFY_DEVICE_POWER_ON,
(LPGUID) &GUID_NDIS_NOTIFY_DEVICE_POWER_OFF
};
CHAR NdisuioDevice[] = "\\\\.\\\\Ndisuio";
CHAR * pNdisuioDevice = &NdisuioDevice[0];
CHAR TunDevice[] = "\\\\.\\\\Tun0";
CHAR * pTunDevice = &TunDevice[0];
BOOLEAN DoEnumerate = FALSE;
BOOLEAN DoReads = FALSE;
INT NumberOfPackets = -1;
ULONG PacketLength = 100;
UCHAR SrcMacAddr[MAC_ADDR_LEN];
UCHAR DstMacAddr[MAC_ADDR_LEN];
BOOLEAN bDstMacSpecified = FALSE;
CHAR * pNdisDeviceName = "JUNK";
USHORT EthType = 0x8e88;
HANDLE UioDeviceHandle, TunDeviceHandle;
BOOLEAN UioDeviceClosed = FALSE;
BOOLEAN TunDeviceClosed = FALSE;
VOID CALLBACK
UioIoCompletion(
DWORD dwErrorCode, // completion code
DWORD dwNumberOfBytesTransfered, // number of bytes transferred
LPOVERLAPPED lpOverlapped // I/O information buffer
);
VOID CALLBACK
TunIoCompletion(
DWORD dwErrorCode, // completion code
DWORD dwNumberOfBytesTransfered, // number of bytes transferred
LPOVERLAPPED lpOverlapped // I/O information buffer
);
/*
typedef struct _OVERLAPPED {
ULONG_PTR Internal;
ULONG_PTR InternalHigh;
DWORD Offset;
DWORD OffsetHigh;
HANDLE hEvent;
} OVERLAPPED;
*/
DWORD
__inline
EnableWmiEvent(
IN LPGUID EventGuid,
IN BOOLEAN Enable
);
VOID
__inline
DeregisterWmiEventNotification(
VOID
);
DWORD
__inline
RegisterWmiEventNotification(
VOID
);
VOID
WINAPI
WmiEventNotification(
IN PWNODE_HEADER Event,
IN UINT_PTR Context
);
typedef enum _TEST_IO_TYPE
{
TestIoTypeRead,
TestIoTypeWrite
} TEST_IO_TYPE;
typedef struct _TEST_IO_COMPLETION
{
OVERLAPPED OverLappedIo;
TEST_IO_TYPE Type;
PVOID Buffer;
} TEST_IO_COMPLETION, *PTEST_IO_COMPLETION;
TEST_IO_COMPLETION UioOverlappedIo[5];
TEST_IO_COMPLETION TunOverlappedIo[5];
PVOID ReadUioBuffer[5], ReadTunBuffer[5];
#include <pshpack1.h>
typedef struct _ETH_HEADER
{
UCHAR DstAddr[MAC_ADDR_LEN];
UCHAR SrcAddr[MAC_ADDR_LEN];
USHORT EthType;
} ETH_HEADER, *PETH_HEADER;
#include <poppack.h>
VOID
PrintUsage()
{
PRINTF(("usage: TUNTEST [options] <devicename>\n"));
PRINTF(("options:\n"));
PRINTF((" -e: Enumerate devices\n"));
PRINTF((" -r: Read\n"));
PRINTF((" -w: Write (default)\n"));
PRINTF((" -l <length>: length of each packet (default: %d)\n", PacketLength));
PRINTF((" -n <count>: number of packets (defaults to infinity)\n"));
PRINTF((" -m <MAC address> (defaults to local MAC)\n"));
}
BOOL
GetOptions(
INT argc,
CHAR *argv[]
)
{
BOOL bOkay;
INT i, j, increment;
CHAR *pOption;
ULONG DstMacAddrUlong[MAC_ADDR_LEN];
bOkay = TRUE;
do
{
if (argc < 2)
{
PRINTF(("Missing <devicename> argument\n"));
bOkay = FALSE;
break;
}
i = 1;
while (i < argc)
{
increment = 1;
pOption = argv[i];
if ((*pOption == '-') || (*pOption == '/'))
{
pOption++;
if (*pOption == '\0')
{
DEBUGP(("Badly formed option\n"));
return (FALSE);
}
}
else
{
break;
}
switch (*pOption)
{
case 'e':
DoEnumerate = TRUE;
break;
case 'r':
DoReads = TRUE;
break;
case 'w':
DoReads = FALSE;
break;
case 'l':
if (i+1 < argc-1)
{
sscanf(argv[i+1], "%d", &PacketLength);
DEBUGP((" Option: PacketLength = %d\n", PacketLength));
increment = 2;
}
else
{
PRINTF(("Option l needs PacketLength parameter\n"));
return (FALSE);
}
break;
case 'n':
if (i+1 < argc-1)
{
sscanf(argv[i+1], "%d", &NumberOfPackets);
DEBUGP((" Option: NumberOfPackets = %d\n", NumberOfPackets));
increment = 2;
}
else
{
PRINTF(("Option n needs NumberOfPackets parameter\n"));
return (FALSE);
}
break;
case 'm':
if (i+1 < argc-1)
{
sscanf(argv[i+1], "%2x:%2x:%2x:%2x:%2x:%2x",
&DstMacAddrUlong[0],
&DstMacAddrUlong[1],
&DstMacAddrUlong[2],
&DstMacAddrUlong[3],
&DstMacAddrUlong[4],
&DstMacAddrUlong[5]);
for (j = 0; j < MAC_ADDR_LEN; j++)
{
DstMacAddr[j] = (UCHAR)DstMacAddrUlong[j];
}
DEBUGP((" Option: Dest MAC Addr: %02x:%02x:%02x:%02x:%02x:%02x\n",
DstMacAddr[0],
DstMacAddr[1],
DstMacAddr[2],
DstMacAddr[3],
DstMacAddr[4],
DstMacAddr[5]));
bDstMacSpecified = TRUE;
increment = 2;
}
else
{
PRINTF(("Option m needs MAC address parameter\n"));
return (FALSE);
}
break;
case '?':
return (FALSE);
default:
PRINTF(("Unknown option %c\n", *pOption));
return (FALSE);
}
i+= increment;
}
pNdisDeviceName = argv[argc-1];
break;
}
while (FALSE);
return (bOkay);
}
HANDLE
OpenHandle(
CHAR *pDeviceName,
BOOLEAN fWaitForBind
)
{
DWORD DesiredAccess;
DWORD ShareMode;
LPSECURITY_ATTRIBUTES lpSecurityAttributes = NULL;
DWORD CreationDistribution;
DWORD FlagsAndAttributes;
HANDLE TemplateFile;
HANDLE Handle;
DWORD BytesReturned;
DesiredAccess = GENERIC_READ|GENERIC_WRITE;
ShareMode = 0;
CreationDistribution = OPEN_EXISTING;
FlagsAndAttributes = FILE_FLAG_OVERLAPPED;
TemplateFile = (HANDLE)INVALID_HANDLE_VALUE;
Handle = CreateFile(
pDeviceName,
DesiredAccess,
ShareMode,
lpSecurityAttributes,
CreationDistribution,
FlagsAndAttributes,
TemplateFile
);
if ((Handle != INVALID_HANDLE_VALUE) && fWaitForBind)
{
//
// Wait for the driver to finish binding.
//
if (!DeviceIoControl(
Handle,
IOCTL_NDISUIO_BIND_WAIT,
NULL,
0,
NULL,
0,
&BytesReturned,
NULL))
{
DEBUGP(("IOCTL_NDISIO_BIND_WAIT failed, error %x\n", GetLastError()));
CloseHandle(Handle);
Handle = INVALID_HANDLE_VALUE;
}
}
return (Handle);
}
BOOL
OpenNdisDevice(
HANDLE Handle,
CHAR *pDeviceName
)
{
WCHAR wNdisDeviceName[MAX_NDIS_DEVICE_NAME_LEN];
INT wNameLength;
INT NameLength = strlen(pDeviceName);
DWORD BytesReturned;
INT i;
//
// Convert to unicode string - non-localized...
//
wNameLength = 0;
for (i = 0; i < NameLength && i < MAX_NDIS_DEVICE_NAME_LEN-1; i++)
{
wNdisDeviceName[i] = (WCHAR)pDeviceName[i];
wNameLength++;
}
wNdisDeviceName[i] = L'\0';
DEBUGP(("Trying to access NDIS Device: %ws\n", wNdisDeviceName));
return (DeviceIoControl(
Handle,
IOCTL_NDISUIO_OPEN_DEVICE,
(LPVOID)&wNdisDeviceName[0],
wNameLength*sizeof(WCHAR),
NULL,
0,
&BytesReturned,
NULL));
}
BOOL
GetSrcMac(
HANDLE Handle,
PUCHAR pSrcMacAddr
)
{
DWORD BytesReturned;
BOOLEAN bSuccess;
UCHAR QueryBuffer[sizeof(NDISUIO_QUERY_OID) + MAC_ADDR_LEN];
PNDISUIO_QUERY_OID pQueryOid;
DEBUGP(("Trying to get src mac address\n"));
pQueryOid = (PNDISUIO_QUERY_OID)&QueryBuffer[0];
pQueryOid->Oid = OID_802_3_CURRENT_ADDRESS;
bSuccess = (BOOLEAN)DeviceIoControl(
Handle,
IOCTL_NDISUIO_QUERY_OID_VALUE,
(LPVOID)&QueryBuffer[0],
sizeof(QueryBuffer),
(LPVOID)&QueryBuffer[0],
sizeof(QueryBuffer),
&BytesReturned,
NULL);
if (bSuccess)
{
DEBUGP(("GetSrcMac: IoControl success, BytesReturned = %d\n",
BytesReturned));
memcpy(pSrcMacAddr, pQueryOid->Data, MAC_ADDR_LEN);
}
else
{
DEBUGP(("GetSrcMac: IoControl failed: %d\n", GetLastError()));
}
return (bSuccess);
}
BOOL
SetPacketFilter(
HANDLE Handle,
ULONG FilterValue
)
{
BOOLEAN bSuccess;
UCHAR SetBuffer[sizeof(NDISUIO_SET_OID)];
PNDISUIO_SET_OID pSetOid;
DWORD BytesReturned;
DEBUGP(("Trying to set packet filter to %x\n", FilterValue));
pSetOid = (PNDISUIO_SET_OID)&SetBuffer[0];
pSetOid->Oid = OID_GEN_CURRENT_PACKET_FILTER;
memcpy(&pSetOid->Data[0], &FilterValue, sizeof(FilterValue));
bSuccess = (BOOLEAN)DeviceIoControl(
Handle,
IOCTL_NDISUIO_SET_OID_VALUE,
(LPVOID)&SetBuffer[0],
sizeof(SetBuffer),
(LPVOID)&SetBuffer[0],
0,
&BytesReturned,
NULL);
if (bSuccess)
{
DEBUGP(("SetPacketFilter: IoControl success\n"));
}
else
{
DEBUGP(("SetPacketFilter: IoControl failed %x\n", GetLastError()));
}
return (bSuccess);
}
VOID
EnumerateDevices(
HANDLE Handle
)
{
CHAR Buf[1024];
DWORD BufLength = sizeof(Buf);
DWORD BytesWritten;
DWORD i;
PNDISUIO_QUERY_BINDING pQueryBinding;
pQueryBinding = (PNDISUIO_QUERY_BINDING)Buf;
i = 0;
for (pQueryBinding->BindingIndex = i;
/* NOTHING */;
pQueryBinding->BindingIndex = ++i)
{
if (DeviceIoControl(
Handle,
IOCTL_NDISUIO_QUERY_BINDING,
pQueryBinding,
sizeof(NDISUIO_QUERY_BINDING),
Buf,
BufLength,
&BytesWritten,
NULL))
{
PRINTF(("%2d. %ws\n - %ws\n",
pQueryBinding->BindingIndex,
(PUCHAR)pQueryBinding + pQueryBinding->DeviceNameOffset,
(PUCHAR)pQueryBinding + pQueryBinding->DeviceDescrOffset));
memset(Buf, 0, BufLength);
}
else
{
ULONG rc = GetLastError();
if (rc != ERROR_NO_MORE_ITEMS)
{
PRINTF(("EnumerateDevices: terminated abnormally, error %d\n", rc));
}
break;
}
}
}
VOID __cdecl
main(
INT argc,
CHAR *argv[]
)
{
ULONG FilterValue;
UINT i;
DWORD BytesWritten, BytesRead;
DWORD ErrorCode;
BOOLEAN bSuccess;
//
// test wmi
//
{
if ((ErrorCode = RegisterWmiEventNotification()) != NO_ERROR)
{
printf("error %d calling RegisterWmiEventNotification.\n", ErrorCode);
return;
}
while (_fgetchar() != 'q')
{
Sleep(1000);
}
DeregisterWmiEventNotification();
return;
}
UioDeviceHandle = TunDeviceHandle = INVALID_HANDLE_VALUE;
do
{
for (i = 0; i < 5; i++)
{
ReadUioBuffer[i] = ReadTunBuffer[i] = NULL;
}
if (!GetOptions(argc, argv))
{
PrintUsage();
break;
}
UioDeviceHandle = OpenHandle(pNdisuioDevice, TRUE);
if (UioDeviceHandle == INVALID_HANDLE_VALUE)
{
PRINTF(("Failed to open %s\n", pNdisuioDevice));
break;
}
if (DoEnumerate)
{
EnumerateDevices(UioDeviceHandle);
break;
}
TunDeviceHandle = OpenHandle(TunDevice, FALSE);
if (TunDeviceHandle == INVALID_HANDLE_VALUE)
{
PRINTF(("Failed to open %s\n", pTunDevice));
break;
}
{
WCHAR wTunMiniportName[MAX_NDIS_DEVICE_NAME_LEN];
UCHAR MiniportName[MAX_NDIS_DEVICE_NAME_LEN];
INT wNameLength;
DWORD BytesReturned;
memset((LPVOID)wTunMiniportName, 0, MAX_NDIS_DEVICE_NAME_LEN);
if (DeviceIoControl(
TunDeviceHandle,
IOCTL_TUN_GET_MINIPORT_NAME,
NULL,
0,
(LPVOID)&wTunMiniportName[0],
MAX_NDIS_DEVICE_NAME_LEN,
&BytesReturned,
NULL))
{
printf("Tun Miniport Name: %ws\n", (PUCHAR)wTunMiniportName + sizeof(USHORT));
/*
NameLength = *(PUSHORT)wTunMiniportName;
for (i = 0; i < NameLength && i < MAX_NDIS_DEVICE_NAME_LEN-1; i++)
{
wNdisDeviceName[i] = (WCHAR)pDeviceName[i];
wNameLength++;
}
wNdisDeviceName[i] = L'\0';
*/
}
else
{
printf("failed to get the miniport name.\n");
}
}
if (!OpenNdisDevice(UioDeviceHandle, pNdisDeviceName))
{
PRINTF(("Failed to access %s\n", pNdisDeviceName));
break;
}
DEBUGP(("Opened device %s successfully!\n", pNdisDeviceName));
if (!GetSrcMac(UioDeviceHandle, SrcMacAddr))
{
PRINTF(("Failed to obtain local MAC address\n"));
break;
}
FilterValue = NDIS_PACKET_TYPE_DIRECTED |
NDIS_PACKET_TYPE_BROADCAST |
NDIS_PACKET_TYPE_ALL_MULTICAST;
DEBUGP(("Got local MAC: %02x:%02x:%02x:%02x:%02x:%02x\n",
SrcMacAddr[0],
SrcMacAddr[1],
SrcMacAddr[2],
SrcMacAddr[3],
SrcMacAddr[4],
SrcMacAddr[5]));
if (!bDstMacSpecified)
{
memcpy(DstMacAddr, SrcMacAddr, MAC_ADDR_LEN);
}
if (!SetPacketFilter(UioDeviceHandle, FilterValue))
{
PRINTF(("Failed to set packet filter\n"));
break;
}
for (i = 0; i < 5; i++)
{
if ((ReadUioBuffer[i] = malloc(1512)) == NULL)
{
PRINTF(("Failed to allocate memory for reading Uio device.\n"));
break;
}
memset((PUCHAR)&UioOverlappedIo[i], 0, sizeof (TEST_IO_COMPLETION));
UioOverlappedIo[i].Buffer = ReadUioBuffer[i];
UioOverlappedIo[i].Type = TestIoTypeRead;
if ((ReadTunBuffer[i] = malloc(1512)) == NULL)
{
PRINTF(("Failed to allocate memory for reading Tun device.\n"));
break;
}
memset((PUCHAR)&TunOverlappedIo[i], 0, sizeof (TEST_IO_COMPLETION));
TunOverlappedIo[i].Buffer = ReadTunBuffer[i];
TunOverlappedIo[i].Type = TestIoTypeRead;
}
if (i < 5)
{
break;
}
if (!BindIoCompletionCallback(
UioDeviceHandle,
UioIoCompletion,
0))
{
break;
}
if (!BindIoCompletionCallback(
TunDeviceHandle,
TunIoCompletion,
0))
{
break;
}
for (i = 0; i < 5; i++)
{
//
// post reads from ndis uio
//
bSuccess = (BOOLEAN)ReadFile(
UioDeviceHandle,
(LPVOID)UioOverlappedIo[i].Buffer,
1500,
&BytesRead,
&UioOverlappedIo[i].OverLappedIo);
bSuccess = (BOOLEAN)ReadFile(
TunDeviceHandle,
(LPVOID)TunOverlappedIo[i].Buffer,
1500,
&BytesRead,
&TunOverlappedIo[i].OverLappedIo);
}
}
while (FALSE);
while (_fgetchar() != 'q')
{
Sleep(1000);
}
if (UioDeviceHandle != INVALID_HANDLE_VALUE)
{
CancelIo(UioDeviceHandle);
UioDeviceClosed = TRUE;
Sleep(1000);
CloseHandle(UioDeviceHandle);
}
if (TunDeviceHandle != INVALID_HANDLE_VALUE)
{
CancelIo(TunDeviceHandle);
TunDeviceClosed = TRUE;
Sleep(1000);
CloseHandle(TunDeviceHandle);
}
for (i = 0; i < 5; i++)
{
if (ReadTunBuffer[i])
free(ReadTunBuffer[i]);
if (ReadUioBuffer[i])
free(ReadUioBuffer[i]);
}
}
VOID CALLBACK
UioIoCompletion(
DWORD dwErrorCode, // completion code
DWORD dwNumberOfBytesTransfered, // number of bytes transferred
LPOVERLAPPED lpOverlapped // I/O information buffer
)
{
PTEST_IO_COMPLETION pTestIoComp = (PTEST_IO_COMPLETION)lpOverlapped;
DWORD BytesWritten, BytesRead;
BOOLEAN bSuccess;
if (UioDeviceClosed || TunDeviceClosed)
return;
//
// determine if this was a read or write
//
if (pTestIoComp->Type == TestIoTypeRead)
{
if (dwErrorCode == 0)
{
//
// a read to uio device got completed. post a write to
// Tun device with the same data.
//
pTestIoComp->Type = TestIoTypeWrite;
bSuccess = (BOOLEAN)WriteFile(
TunDeviceHandle,
pTestIoComp->Buffer,
dwNumberOfBytesTransfered,
&BytesWritten,
lpOverlapped);
}
else
{
//
// post another read
//
bSuccess = (BOOLEAN)ReadFile(
UioDeviceHandle,
(LPVOID)pTestIoComp->Buffer,
1500,
&BytesRead,
lpOverlapped);
}
}
else
{
//
// a write to uio device just got completed.
// post a read to Tun device.
//
pTestIoComp->Type = TestIoTypeRead;
bSuccess = (BOOLEAN)ReadFile(
TunDeviceHandle,
(LPVOID)pTestIoComp->Buffer,
1500,
&BytesRead,
lpOverlapped);
}
}
VOID CALLBACK
TunIoCompletion(
DWORD dwErrorCode, // completion code
DWORD dwNumberOfBytesTransfered, // number of bytes transferred
LPOVERLAPPED lpOverlapped // I/O information buffer
)
{
PTEST_IO_COMPLETION pTestIoComp = (PTEST_IO_COMPLETION)lpOverlapped;
DWORD BytesWritten, BytesRead;
BOOLEAN bSuccess;
if (UioDeviceClosed || TunDeviceClosed)
return;
//
// determine if this was a read or write
//
if (pTestIoComp->Type == TestIoTypeRead)
{
if (dwErrorCode == 0)
{
//
// a read to Tun device got completed. post a write to
// uio device with the same data.
//
pTestIoComp->Type = TestIoTypeWrite;
bSuccess = (BOOLEAN)WriteFile(
UioDeviceHandle,
pTestIoComp->Buffer,
dwNumberOfBytesTransfered,
&BytesWritten,
lpOverlapped);
}
else
{
//
// post another read
//
bSuccess = (BOOLEAN)ReadFile(
TunDeviceHandle,
(LPVOID)pTestIoComp->Buffer,
1500,
&BytesRead,
lpOverlapped);
}
}
else
{
//
// a write to Tun device just got completed.
// post a read to Uio device.
//
pTestIoComp->Type = TestIoTypeRead;
bSuccess = (BOOLEAN)ReadFile(
UioDeviceHandle,
(LPVOID)pTestIoComp->Buffer,
1500,
&BytesRead,
lpOverlapped);
}
}
DWORD
__inline
EnableWmiEvent(
IN LPGUID EventGuid,
IN BOOLEAN Enable
)
{
return WmiNotificationRegistrationW(
EventGuid, // Event Type.
Enable, // Enable or Disable.
WmiEventNotification, // Callback.
0, // Context.
NOTIFICATION_CALLBACK_DIRECT); // Notification Flags.
}
VOID
__inline
DeregisterWmiEventNotification(
VOID
)
{
int i;
for (i = 0; i < (sizeof(WmiEvent) / sizeof(LPGUID)); i++) {
(VOID) EnableWmiEvent(WmiEvent[i], FALSE);
}
}
DWORD
__inline
RegisterWmiEventNotification(
VOID
)
{
DWORD Error;
int i;
for (i = 0; i < (sizeof(WmiEvent) / sizeof(LPGUID)); i++) {
Error = EnableWmiEvent(WmiEvent[i], TRUE);
if (Error != NO_ERROR) {
goto Bail;
}
}
return NO_ERROR;
Bail:
DeregisterWmiEventNotification();
return Error;
}
VOID
WINAPI
WmiEventNotification(
IN PWNODE_HEADER Event,
IN UINT_PTR Context
)
/*++
Routine Description:
Process a WMI event (specifically adapter arrival or removal).
Arguments:
Event - Supplies event specific information.
Context - Supplies the context registered.
Return Value:
None.
--*/
{
PWNODE_SINGLE_INSTANCE Instance = (PWNODE_SINGLE_INSTANCE) Event;
USHORT AdapterNameLength;
WCHAR AdapterName[MAX_ADAPTER_NAME_LENGTH], *AdapterGuid;
USHORT AdapterInstanceNameLength;
WCHAR AdapterInstanceName[MAX_ADAPTER_NAME_LENGTH];
if (Instance == NULL) {
return;
}
//
// WNODE_SINGLE_INSTANCE is organized thus...
// +-----------------------------------------------------------+
// |<--- DataBlockOffset --->| AdapterNameLength | AdapterName |
// +-----------------------------------------------------------+
//
// AdapterName is defined as "\DEVICE\"AdapterGuid
//
AdapterNameLength =
*((PUSHORT) (((PUCHAR) Instance) + Instance->DataBlockOffset));
RtlCopyMemory(
AdapterName,
((PUCHAR) Instance) + Instance->DataBlockOffset + sizeof(USHORT),
AdapterNameLength);
AdapterName[AdapterNameLength / sizeof(WCHAR)] = L'\0';
AdapterGuid = AdapterName + wcslen(DEVICE_PREFIX);
AdapterInstanceNameLength =
*((PUSHORT) (((PUCHAR) Instance) + Instance->OffsetInstanceName));
RtlCopyMemory(
AdapterInstanceName,
((PUCHAR) Instance) + Instance->OffsetInstanceName + sizeof(USHORT),
AdapterInstanceNameLength);
if (AdapterInstanceNameLength < MAX_ADAPTER_NAME_LENGTH - 1)
{
AdapterInstanceName[AdapterInstanceNameLength / sizeof(WCHAR)] = L'\0';
}
else
{
AdapterInstanceName[MAX_ADAPTER_NAME_LENGTH - 1] = L'\0';
}
if (memcmp(
&(Event->Guid),
&GUID_NDIS_NOTIFY_ADAPTER_ARRIVAL,
sizeof(GUID)) == 0) {
//
// Adapter arrival.
//
printf("adapter arrival. %ws\n", AdapterGuid);
}
if (memcmp(
&(Event->Guid),
&GUID_NDIS_NOTIFY_ADAPTER_REMOVAL,
sizeof(GUID)) == 0) {
//
// Adapter removal.
//
printf("adapter removal. %ws\n", AdapterGuid);
}
if (memcmp(
&(Event->Guid),
(PVOID)&GUID_NDIS_NOTIFY_DEVICE_POWER_ON,
sizeof(GUID)) == 0) {
//
// Adapter powered on
//
printf("adapter powered on. %ws\n", AdapterInstanceName );
}
if (memcmp(
&(Event->Guid),
(PVOID)&GUID_NDIS_NOTIFY_DEVICE_POWER_OFF,
sizeof(GUID)) == 0) {
//
// Adapter powered off
//
printf("adapter powered off. %ws\n", AdapterInstanceName );
}
}