Windows Driver Development | Windows Driver Samples | ObCallback Callback Registration Driver | C++ | control

Sample Code

Windows Driver Samples/ ObCallback Callback Registration Driver/ C++/ control/ main.cpp/

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/*++
 
Module Name:
 
    main.cpp
 
Abstract:
 
    Main module for for ps/Ob sample
 
Notice:
 
    Use this sample code at your own risk; there is no support from Microsoft for the sample code.
    In addition, this sample code is licensed to you under the terms of the Microsoft Public License
    (http://www.microsoft.com/opensource/licenses.mspx)
 
     
--*/
 
#include "pch.h"
#include "common.h"
 
//
// PrintUsage
//
 
void TcPrintUsage()
{
    puts ("Usage:");
    puts ("");
    puts("    ObCallbackTestCtrl.exe -install -name NameofExe -reject NameofExe -uninstall -deprotect [-?]");
    puts("     -install        install driver");
    puts("     -uninstall      uninstall driver");
    puts("     -name NameofExe    protect/filter access to NameofExe");
    puts("     -reject NameofExe    prevents execution of NameofExe");
    puts("     -deprotect      unprotect/unfilter");
}
 
//
// wmain()
//
 
int _cdecl
wmain (
    _In_ int argc,
    _In_reads_(argc) LPCWSTR argv[]
)
{
    int ExitCode = ERROR_SUCCESS;
 
    if (argc > 1)
    {
        const wchar_t * arg = argv[1];
 
        // initialize globals and logging
        if (!TcInitialize()) {
            puts("Initialization failed - program exiting");
            ExitCode = ERROR_FUNCTION_FAILED;
            goto Exit;
        }
 
        if (0 == wcscmp (arg, L"-install")) {
            TcInstallDriver();
        } else
        if (0 == wcscmp (arg, L"-uninstall")) {
            TcUninstallDriver();
        } else
        if ((0 == wcscmp (arg, L"-?")) || (0 == wcscmp (arg, L"-h")) || (0 == wcscmp (arg, L"-help"))) {
            TcPrintUsage();
        } else
        if (0 == wcscmp (arg, L"-deprotect")) {
            TcRemoveProtection();
        } else
        if (0 == wcscmp (arg, L"-name")) {
            TcProcessName (argc, argv, TDProtectName_Protect);
        } else
        if (0 == wcscmp (arg, L"-reject")) {
            TcProcessName (argc, argv, TDProtectName_Reject);
        } else  {
            puts ("Unknown command!");
            TcPrintUsage();
        }
         
    }
    else
    {
        TcPrintUsage();
    }
 
Exit:
 
    if (!TcUnInitialize()) {
        puts("UnInitialization failed");
        ExitCode = ERROR_FUNCTION_FAILED;
    }
 
    return ExitCode;
}
 
 
 
//
// TcRemoveProtection
//
 
BOOL TcRemoveProtection ()
{
    BOOL ReturnValue = FALSE;
 
    LOG_INFO(_T("TcRemoveProtection: Entering"));
 
 
    //
    // Open a handle to the device.
    //
 
    ReturnValue = TcOpenDevice();
    if (ReturnValue != TRUE)
    {
        LOG_INFO_FAILURE (_T("TcOpenDevice failed"));
        goto Exit;
    }
 
 
    //
    // Send the command to the driver
    //
    ReturnValue = TcUnprotectCallback();
    if (ReturnValue != TRUE)
    {
        LOG_INFO_FAILURE (_T("TcUnprotectCallback failed"));
        goto Exit;
    }
 
Exit:
 
    //
    // Close our handle to the device.
    //
 
    ReturnValue = TcCloseDevice();
    if (ReturnValue != TRUE)
    {
        LOG_INFO_FAILURE (_T("TcCloseDevice failed"));
    }
    
 
    LOG_INFO(_T("TcRemoveProtection: Exiting"));
 
    return ReturnValue;
}
 
 
//
// TcProcessName
//
 
BOOL TcProcessName(
    _In_ int argc,
    _In_reads_(argc) LPCWSTR argv[],
    _In_ ULONG ulOperation
)
{
    BOOL ReturnValue = FALSE;
 
    PCWSTR pwProcessName = NULL;
 
    LOG_INFO(L"TcProcessName: Entering");
 
 
    //
    // Parse command line.
    //
    // argv[1] is "-name" so starting from arg #2 that should be the process name to protect
    //
 
    if (argc < 3) {
        LOG_INFO_FAILURE (L"TcProcessName: Too few parameters");
        LOG_INFO_FAILURE (L"TcProcessName: Usage  -name nameofExe  -reject nameofExe");
        ReturnValue = FALSE;
        goto Exit;
    }
 
    pwProcessName = argv[2];
 
    if (!pwProcessName) {
        LOG_INFO_FAILURE (L"TcProcessName: NULL process name to process");
        ReturnValue = FALSE;
        goto Exit;
    }
 
 
    LOG_INFO(L"Ready to copy process name");
    LOG_INFO(L"Name to pass to driver   %ls", pwProcessName);
 
 
    //
    // Open a handle to the device.
    //
 
    ReturnValue = TcOpenDevice();
    if (ReturnValue != TRUE)
    {
        LOG_INFO_FAILURE (L"TcProcessName: TcOpenDevice failed");
        goto Exit;
    }
 
 
    //
    // Send process name to protect and the command to the driver
    //
    ReturnValue = TcProcessNameCallback(pwProcessName, ulOperation);
    if (ReturnValue != TRUE)
    {
        LOG_INFO_FAILURE (L"TcProcessName: TcProcessNameCallback failed");
        goto Exit;
    }
 
Exit:
 
    //
    // Close our handle to the device.
    //
 
    ReturnValue = TcCloseDevice();
    if (ReturnValue != TRUE)
    {
        LOG_INFO_FAILURE (L"TcProtectProcess: TcCloseDevice failed");
    }
    
 
    LOG_INFO(L"TcProtectProcess: Exiting");
 
    return ReturnValue;
}
 
 
 
//
// TcInstallDriver  - installs the kernel driver
//
 
BOOL TcInstallDriver ()
{
    BOOL bRC = TRUE;
 
    LOG_INFO(L"TcInstallDriver: Entering");
    BOOL Result = TcLoadDriver();
 
    if (Result != TRUE)
    {
        LOG_ERROR (L"TcLoadDriver failed, exiting");
        bRC = FALSE;
        goto Exit;
    }
 
Exit:
 
    LOG_INFO(L"TcInstallDriver: Exiting");
    return bRC;
}
 
 
//
// TcUninstallDriver  - uninstalls the kernel driver
//
 
BOOL TcUninstallDriver ()
{
    BOOL bRC = TRUE;
 
    LOG_INFO(L"TcUninstallDriver: Entering");
    BOOL Result = TcUnloadDriver();
 
    if (Result != TRUE)
    {
        LOG_ERROR (L"TcUnloadDriver failed, exiting");
        bRC = FALSE;
        goto Exit;
    }
 
Exit:
 
    LOG_INFO(L"TcUninstallDriver: Exiting");
    return bRC;
}
 
 
//
// TcInitialize
//
 
BOOL bLoggingInitialized = FALSE;
 
BOOL TcInitialize  ()
{
 
    BOOL Result = TcInitializeGlobals();
    if (Result != TRUE)
    {
        LOG_ERROR (L"TcInitializeGlobals failed, exiting");
        return FALSE;
    }
 
    LOG_INFO(L"TcInitialize: Entering");
    return TRUE;
 
}
 
//
// TcUnInitialize
//
 
BOOL TcUnInitialize()
{
    if (TcCleanupSCM() == FALSE){
        LOG_ERROR (L"TcUnInitialize failed cleanup of SCM");
    }
    return TRUE;
}

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Windows Driver Samples/ ObCallback Callback Registration Driver/ C++/ control/ main.cpp/

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