mirror of
https://github.com/reactos/reactos.git
synced 2024-09-11 21:34:09 +00:00
224 lines
5.4 KiB
C
224 lines
5.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#define _WINVER 0x501
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#include <windows.h>
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#include <shlwapi.h>
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#include <dbghelp.h>
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HANDLE hCurrentProcess;
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#define MAX_SYMBOL_NAME 1024
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BOOL InitDbgHelp(HANDLE hProcess)
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{
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if (!SymInitialize(hProcess, 0, FALSE))
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return FALSE;
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SymSetOptions(SymGetOptions() | SYMOPT_ALLOW_ABSOLUTE_SYMBOLS);
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SymSetOptions(SymGetOptions() & (~SYMOPT_DEFERRED_LOADS));
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SymSetSearchPath(hProcess, "srv**symbols*http://msdl.microsoft.com/download/symbols");
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return TRUE;
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}
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DWORD64
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GetOffsetFromAdress64(PBYTE pModule, DWORD64 dwAdress, PBOOL pbX64)
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{
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PIMAGE_DOS_HEADER pDosHdr;
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PIMAGE_NT_HEADERS32 pNtHdr32;
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WORD NumberOfSections;
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INT i, nSection;
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DWORD64 dwOffset = 0;
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pDosHdr = (PIMAGE_DOS_HEADER)pModule;
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pNtHdr32 = (PIMAGE_NT_HEADERS32)((UINT_PTR)pModule + pDosHdr->e_lfanew);
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if (pNtHdr32->Signature != IMAGE_NT_SIGNATURE)
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{
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return 0;
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}
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if (pNtHdr32->FileHeader.Machine == IMAGE_FILE_MACHINE_I386)
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{
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PIMAGE_SECTION_HEADER pSectionHdr;
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*pbX64 = FALSE;
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NumberOfSections = pNtHdr32->FileHeader.NumberOfSections;
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pSectionHdr = (PIMAGE_SECTION_HEADER)(pNtHdr32 + 1);
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nSection = 0;
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for (i = 0; i < NumberOfSections; i++)
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{
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if (dwAdress >= pSectionHdr[i].VirtualAddress &&
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pSectionHdr[i].PointerToRawData > pSectionHdr[nSection].PointerToRawData)
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{
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nSection = i;
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}
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}
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dwOffset = pSectionHdr[nSection].PointerToRawData + dwAdress - pSectionHdr[nSection].VirtualAddress;
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return dwOffset;
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}
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else
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{
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*pbX64 = TRUE;
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printf("x64 is unsupported atm\n");
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return 0;
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}
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}
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DWORD64
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GetOffsetFromName(HANDLE hProcess, PSYMBOL_INFO pSym, PBYTE pModule, PCSTR Name, PBOOL pbX64)
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{
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pSym->SizeOfStruct = sizeof(SYMBOL_INFO);
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pSym->MaxNameLen = MAX_SYMBOL_NAME-1;
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if (!SymFromName(hProcess, Name, pSym))
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{
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printf("SymGetSymFromName64() failed: %ld\n", GetLastError());
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return 0;
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}
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printf("looking up adress for %s: 0x%llx\n", Name, pSym->Address);
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return GetOffsetFromAdress64(pModule, pSym->Address - pSym->ModBase, pbX64);
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}
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BOOL CALLBACK EnumSymbolsProc(
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PSYMBOL_INFO pSymInfo,
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ULONG SymbolSize,
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PVOID UserContext)
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{
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printf("%s@%d ", pSymInfo->Name, (UINT)UserContext);
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return TRUE;
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}
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int main(int argc, char* argv[])
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{
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HANDLE hProcess;
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CHAR szModuleFileName[MAX_PATH+1];
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DWORD64 dwModuleBase;
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HANDLE hFile = 0, hMap = 0;
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PBYTE pModule = NULL;
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UINT i;
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BOOL bX64;
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DWORD64 dwW32pServiceTable, dwW32pServiceLimit, dwW32pArgumentTable;
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DWORD dwServiceLimit;
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BYTE *pdwArgs;
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struct
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{
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SYMBOL_INFO Symbol;
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CHAR Name[MAX_SYMBOL_NAME];
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} Sym;
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printf("Win32k Syscall dumper\n");
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printf("Copyright (c) Timo Kreuzer 2007\n");
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hProcess = GetCurrentProcess();
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// try current dir
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GetCurrentDirectory(MAX_PATH, szModuleFileName);
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strcat(szModuleFileName, "\\win32k.sys");
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hFile = CreateFile(szModuleFileName, FILE_READ_DATA, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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if (hFile != INVALID_HANDLE_VALUE)
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{
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goto cont;
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}
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// try system dir
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GetSystemDirectory(szModuleFileName, MAX_PATH);
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strcat(szModuleFileName, "\\win32k.sys");
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hFile = CreateFile(szModuleFileName, FILE_READ_DATA, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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if (hFile == INVALID_HANDLE_VALUE)
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{
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printf("CreateFile() failed: %ld!\n", GetLastError());
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goto cleanup;
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}
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cont:
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printf("Trying to get syscalls from: %s\n", szModuleFileName);
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if (!InitDbgHelp(hProcess))
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{
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printf("SymInitialize() failed\n");
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goto cleanup;
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}
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printf("Loading symbols for %s, please wait...\n", szModuleFileName);
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dwModuleBase = SymLoadModule64(hProcess, 0, szModuleFileName, 0, 0, 0);
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if (dwModuleBase == 0)
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{
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printf("SymLoadModule64() failed: %ld\n", GetLastError());
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goto cleanup;
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}
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hMap = CreateFileMappingA(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
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if (!hMap)
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{
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printf("CreateFileMapping() failed: %ld\n", GetLastError());
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goto cleanup;
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}
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pModule = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0);
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if(!pModule)
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{
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printf("MapViewOfFile() failed: %ld\n", GetLastError());
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goto cleanup;
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}
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dwW32pServiceTable = GetOffsetFromName(hProcess, &Sym.Symbol, pModule, "W32pServiceTable", &bX64);
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dwW32pServiceLimit = GetOffsetFromName(hProcess, &Sym.Symbol, pModule, "W32pServiceLimit", &bX64);
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dwW32pArgumentTable = GetOffsetFromName(hProcess, &Sym.Symbol, pModule, "W32pArgumentTable", &bX64);
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printf("dwW32pServiceTable = %llx\n", dwW32pServiceTable);
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printf("dwW32pServiceLimit = %llx\n", dwW32pServiceLimit);
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printf("dwW32pArgumentTable = %llx\n", dwW32pArgumentTable);
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if (!dwW32pServiceTable || !dwW32pServiceLimit || !dwW32pArgumentTable)
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{
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printf("Couldn't find adress!\n");
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goto cleanup;
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}
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dwServiceLimit = *((DWORD*)(pModule + dwW32pServiceLimit));
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pdwArgs = (BYTE*)(pModule + dwW32pArgumentTable);
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if (!bX64)
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{
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DWORD *pdwEntries32 = (DWORD*)(pModule + dwW32pServiceTable);
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for (i = 0; i < dwServiceLimit; i++)
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{
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printf("0x%x:", i+0x1000);
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SymEnumSymbolsForAddr(hProcess, (DWORD64)pdwEntries32[i], EnumSymbolsProc, (PVOID)(DWORD)pdwArgs[i]);
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printf("\n");
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}
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}
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else
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{
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DWORD64 *pdwEntries64 = (DWORD64*)(pModule + dwW32pServiceTable);
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for (i = 0; i < dwServiceLimit; i++)
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{
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printf("0x%x:", i+0x1000);
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SymEnumSymbolsForAddr(hProcess, (DWORD64)pdwEntries64[i], EnumSymbolsProc, (PVOID)(i+0x1000));
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printf("\n");
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}
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}
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cleanup:
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if (pModule)
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{
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UnmapViewOfFile(pModule);
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}
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if (hMap)
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{
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CloseHandle(hMap);
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}
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if (hFile)
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{
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CloseHandle(hFile);
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}
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return 0;
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}
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