mirror of
https://github.com/reactos/reactos.git
synced 2024-08-17 08:58:30 +00:00
236 lines
5.4 KiB
C
236 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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#define SYMOPT_ALLOW_ABSOLUTE_SYMBOLS 0x00000800
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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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BOOL bX64;
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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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PVOID
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ImageSymToVa(HANDLE hProcess, PSYMBOL_INFO pSym, PBYTE pModule, PCSTR Name)
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{
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PIMAGE_NT_HEADERS NtHeaders;
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PVOID p;
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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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#if defined(__GNUC__) && \
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(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__ < 40400)
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printf("looking up adress for %s: 0x%llx\n", Name, pSym->Address);
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#else
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printf("looking up adress for %s: 0x%I64x\n", Name, pSym->Address);
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#endif
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NtHeaders = ImageNtHeader(pModule);
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p = ImageRvaToVa(NtHeaders, pModule, pSym->Address - pSym->ModBase, NULL);
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return p;
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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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if ((UINT)UserContext == -1)
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{
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printf("%s ", pSymInfo->Name);
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}
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else
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{
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if (!bX64)
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{
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printf("%s@%d ", pSymInfo->Name, (UINT)UserContext);
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}
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else
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{
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printf("%s <+ %d> ", pSymInfo->Name, (UINT)UserContext);
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}
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}
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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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PVOID pW32pServiceTable, pW32pServiceLimit;
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PBYTE pW32pArgumentTable;
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PVOID pfnSimpleCall;
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DWORD dwServiceLimit;
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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 2007-08\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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bX64 = (ImageNtHeader(pModule)->FileHeader.Machine != IMAGE_FILE_MACHINE_I386);
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pW32pServiceTable = ImageSymToVa(hProcess, &Sym.Symbol, pModule, "W32pServiceTable");
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pW32pServiceLimit = ImageSymToVa(hProcess, &Sym.Symbol, pModule, "W32pServiceLimit");
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pW32pArgumentTable = ImageSymToVa(hProcess, &Sym.Symbol, pModule, "W32pArgumentTable");
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// printf("pW32pServiceTable = %p\n", pW32pServiceTable);
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// printf("pW32pServiceLimit = %p\n", pW32pServiceLimit);
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// printf("pW32pArgumentTable = %p\n", pW32pArgumentTable);
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if (!pW32pServiceTable || !pW32pServiceLimit || !pW32pArgumentTable)
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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*)pW32pServiceLimit);
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if (!bX64)
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{
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DWORD *pdwEntries32 = (DWORD*)pW32pServiceTable;
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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)pW32pArgumentTable[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*)pW32pServiceTable;
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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)(DWORD)pW32pArgumentTable[i]);
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printf("\n");
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}
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}
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/* Dump apfnSimpleCall */
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printf("\nDumping apfnSimpleCall:\n");
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pfnSimpleCall = (PVOID*)ImageSymToVa(hProcess, &Sym.Symbol, pModule, "apfnSimpleCall");
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i = 0;
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if (bX64)
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{
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DWORD64 *pfnSC64 = (DWORD64*)pfnSimpleCall;
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while (pfnSC64[i] != 0)
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{
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printf("0x%x:", i);
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SymEnumSymbolsForAddr(hProcess, (DWORD64)pfnSC64[i], EnumSymbolsProc, (PVOID)-1);
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printf("\n");
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i++;
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}
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}
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else
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{
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DWORD *pfnSC32 = (DWORD*)pfnSimpleCall;
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while (pfnSC32[i] != 0)
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{
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printf("0x%x:", i);
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SymEnumSymbolsForAddr(hProcess, (DWORD64)pfnSC32[i], EnumSymbolsProc, (PVOID)-1);
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printf("\n");
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i++;
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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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