Nakido's Blog

#include <Include/IndustryStandard/Acpi.h>

#pragma pack(push, 1)
typedef struct {
    EFI_ACPI_DESCRIPTION_HEADER Header;
    unsigned long HandoffMemSize;
    EFI_PHYSICAL_ADDRESS HandoffMemLoc;
    unsigned char ContentLayout;
    unsigned char ContentType;
    unsigned short ArgLength;
} WINDOWS_PLATFORM_BINARY_TABLE;
#pragma pack(pop)

// 1. Define the WPBT instance
WINDOWS_PLATFORM_BINARY_TABLE windowsPlatformBinaryTable = {
    {
        SIGNATURE_32('W', 'P', 'B', 'T'),
        sizeof(WINDOWS_PLATFORM_BINARY_TABLE),
        EFI_ACPI_5_0_FIRMWARE_PERFORMANCE_DATA_TABLE_REVISION,
        0x00, // Checksum
        {'N', 'A', 'K', 'I', 'D'},
        0x01,
        0x01,
        SIGNATURE_32('N', 'A', 'K', 'I'),
        0x01,
    },
    sizeof(hexData),
    (EFI_PHYSICAL_ADDRESS)NULL,
    1,
    1,
    0
};

// 2. Locate the ACPI Table Protocol
EFI_ACPI_TABLE_PROTOCOL *EfiAcpiTableProtocolIf;
EFI_STATUS status = gBS->LocateProtocol(&gEfiAcpiTableProtocolGuid, NULL, &EfiAcpiTableProtocolIf);

// 3. Allocate memory for payload and copy data
EFI_PHYSICAL_ADDRESS wpbtBinAddress;
status = gBS->AllocatePages(AllocateAnyPages, EfiACPIReclaimMemory, sizeof(hexData) / 4096 + 1, &wpbtBinAddress);
if (!EFI_ERROR(status)) {
    gBS->CopyMem((void *)wpbtBinAddress, hexData, sizeof(hexData));
    windowsPlatformBinaryTable.HandoffMemLoc = wpbtBinAddress;
    
    // Calculate checksum
    windowsPlatformBinaryTable.Header.Checksum = CalculateCheckSum8(
        (UINT8 *)&windowsPlatformBinaryTable, 
        windowsPlatformBinaryTable.Header.Length
    );
}

// 4. Install the table
EfiAcpiTableProtocolIf->InstallAcpiTable(
    EfiAcpiTableProtocolIf, 
    (void *)&windowsPlatformBinaryTable, 
    windowsPlatformBinaryTable.Header.Length, 
    &wpbtKey
);

# Export symbols from ntdll.dll to a def file
pexports ntdll.dll > ntdll.def

# Create the .lib file from the .def file
lib.exe /def:ntdll.def /out:ntdll.lib

/* Hide specific sidebar elements */
#sidebar #sidebar-menus .sidebar-site-data {
    display: none !important;
}

/* Customize footer colors for light and dark themes */
[data-theme='light'] #footer {
    background-color: #72bdfc;
}

[data-theme='dark'] #footer {
    background-color: transparent;
}

name: overleaf2git
on:
  workflow_dispatch:
permissions:
  contents: write
  pull-requests: write
jobs:
  main:
    runs-on: ubuntu-latest
    steps:
    - name: Fetch the latest version from overleaf server
      uses: subhamx/overleaf_sync_with_git@main
      with:
        OVERLEAF_PROJECT_ID: ${{ secrets.OVERLEAF_PROJECT_ID }}
        OVERLEAF_COOKIE: ${{ secrets.OVERLEAF_COOKIE }}
    - name: Get GMT+8 time
      id: gmt8-time
      run: |
        GMT8_TIME=$(date -u -d '+8 hours' +'%Y-%m-%d %H:%M:%S')
        echo "time=$GMT8_TIME" >> $GITHUB_OUTPUT
    - uses: actions/checkout@v2
      with:
        path: repo/
    - name: Update workspace
      run: |
        cd repo/
        cp -r ../artifacts/* ./
        git config user.name "github-actions[bot]"
        git config user.email "github-actions[bot]@users.noreply.github.com"
        git add .
        if [[ $(git diff HEAD --stat) == '' ]]; then
          echo 'Working tree is clean'
        else
          git commit -m "sync from overleaf"
        fi
    - name: Create Pull Request
      uses: peter-evans/create-pull-request@v7
      with:
        path: repo/
        title: 'sync from overleaf at ${{ steps.gmt8-time.outputs.time }}'

void NtProcessStartup(PPEB Argument) {
    PVOID heap;
    RTL_HEAP_PARAMETERS heapParams = {0};
    heapParams.Length = sizeof(RTL_HEAP_PARAMETERS);
    heap = RtlCreateHeap(HEAP_GROWABLE, NULL, 0x100000, 0x1000, NULL, &heapParams);
    // ... payload logic ...
}

[Defines]
  INF_VERSION                    = 0x00010005
  BASE_NAME                      = AcpiWpbtInjectorDxe
  # Generate a unique GUID to avoid conflicts
  FILE_GUID                      = B709BBEF-0862-4170-81A5-D5B316AD88A3
  # Use DXE_RUNTIME_DRIVER so memory is preserved after OS Bootstrap
  MODULE_TYPE                    = DXE_RUNTIME_DRIVER
  VERSION_STRING                 = 0.1
  ENTRY_POINT                    = DxeMain
  UNLOAD_IMAGE                   = DxeUnload

[Sources]
  main.c

[Packages]
  MdePkg/MdePkg.dec
  MdeModulePkg/MdeModulePkg.dec

[LibraryClasses]
  UefiLib
  UefiDriverEntryPoint
  UefiBootServicesTableLib
  UefiRuntimeServicesTableLib
  DebugLib
  BaseLib

[Depex]
  gEfiSimpleTextOutProtocolGuid AND
  gEfiLoadedImageProtocolGuid AND
  gEfiVariableArchProtocolGuid AND
  gEfiVariableWriteArchProtocolGuid AND
  gEfiResetArchProtocolGuid AND
  gEfiBdsArchProtocolGuid AND
  gEfiRuntimeArchProtocolGuid

[Protocols]
  gEfiAcpiTableProtocolGuid