mirror of
https://github.com/winterknife/EVENSTAR
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winterknife
99 lines
3.3 KiB
C
99 lines
3.3 KiB
C
// ========================================================================
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// File: ReadInterruptDescriptorTable.h
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//
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// Author: winterknife
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//
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// Description: Header file for ReadInterruptDescriptorTable.cpp source file
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//
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// Modifications:
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// 2025-06-23 Created
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// 2025-06-28 Updated
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// ========================================================================
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// ========================================================================
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// Pragmas
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// ========================================================================
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#pragma once
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// ========================================================================
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// Includes
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// ========================================================================
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#include "Common.h"
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// ========================================================================
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// Structures/Enumerations/Unions
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// ========================================================================
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#pragma region STRUCTS_ENUMS_UNIONS
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// Interrupt Descriptor Table Register (IDTR)
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#pragma pack(push, 1)
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typedef struct _IDTR {
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WORD Limit;
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QWORD BaseAddress;
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} IDTR, *PIDTR;
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#pragma pack(pop)
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// Interrupt/Trap Gate
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#pragma warning(push)
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#pragma warning(disable: 4201)
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#pragma pack(push, 1)
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typedef struct _INTERRUPT_TRAP_GATE_DESCRIPTOR {
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WORD OffsetLow; // bits 00 - 15
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WORD SegmentSelector; // bits 16 - 31
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struct {
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WORD IST : 3; // bits 32 - 34 (Interrupt Stack Table)
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WORD Reserved1 : 5; // bits 35 - 39 (0)
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WORD Type : 4; // bits 40 - 43
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WORD Reserved2 : 1; // bit 44 (0)
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WORD DPL : 2; // bits 45 - 46 (Descriptor Privilege Level)
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WORD P : 1; // bit 47 (Segment Present flag)
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};
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WORD OffsetMiddle; // bits 48 - 63
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DWORD OffsetHigh; // bits 64 - 95
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DWORD Reserved3; // bits 96 - 127 (0)
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} INTERRUPT_TRAP_GATE_DESCRIPTOR, *PINTERRUPT_TRAP_GATE_DESCRIPTOR;
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#pragma pack(pop)
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#pragma warning(pop)
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#pragma endregion
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// ========================================================================
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// C routine declarations
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// ========================================================================
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#pragma region DECLARATIONS
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/// @brief Built-in help command for the debugger extension DLL
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/// @param hCurrentProcess Handle for the current process
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/// @param hCurrentThread Handle for the current thread
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/// @param qwCurrentPc Program counter
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/// @param dwProcessor Current processor
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/// @param strArgs Command line arguments
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/// @return None
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extern "C" __declspec(dllexport) VOID __stdcall help(
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_In_ HANDLE hCurrentProcess,
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_In_ HANDLE hCurrentThread,
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_In_ QWORD qwCurrentPc,
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_In_ DWORD dwProcessor,
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_In_z_ PCSTR strArgs
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);
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/// @brief Built-in command to read and parse the gate descriptors in the Interrupt Descriptor Table (IDT)
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/// @param hCurrentProcess Handle for the current process
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/// @param hCurrentThread Handle for the current thread
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/// @param qwCurrentPc Program counter
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/// @param dwProcessor Current processor
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/// @param strArgs Command line arguments
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/// @return None
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extern "C" __declspec(dllexport) VOID __stdcall read_idt(
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_In_ HANDLE hCurrentProcess,
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_In_ HANDLE hCurrentThread,
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_In_ QWORD qwCurrentPc,
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_In_ DWORD dwProcessor,
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_In_z_ PCSTR strArgs
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);
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#pragma endregion |