1 files changed, 0 insertions, 454 deletions
diff --git a/toolkit/crashreporter/LoadLibraryRemote.cpp b/toolkit/crashreporter/LoadLibraryRemote.cpp
deleted file mode 100644
index f22a6220f..000000000
--- a/toolkit/crashreporter/LoadLibraryRemote.cpp
+++ /dev/null
@@ -1,454 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef __GNUC__
-// disable warnings about pointer <-> DWORD conversions
-#pragma warning( disable : 4311 4312 )
-#endif
-
-#ifdef _WIN64
-#define POINTER_TYPE ULONGLONG
-#else
-#define POINTER_TYPE DWORD
-#endif
-
-#include <windows.h>
-#include <winnt.h>
-#include <stdlib.h>
-#ifdef DEBUG_OUTPUT
-#include <stdio.h>
-#endif
-
-#include "nsWindowsHelpers.h"
-
-typedef const unsigned char* FileView;
-
-template<>
-class nsAutoRefTraits<FileView>
-{
-public:
-  typedef FileView RawRef;
-  static FileView Void()
-  {
-    return nullptr;
-  }
-
-  static void Release(RawRef aView)
-  {
-    if (nullptr != aView)
-      UnmapViewOfFile(aView);
-  }
-};
-
-#ifndef IMAGE_SIZEOF_BASE_RELOCATION
-// Vista SDKs no longer define IMAGE_SIZEOF_BASE_RELOCATION!?
-#define IMAGE_SIZEOF_BASE_RELOCATION (sizeof(IMAGE_BASE_RELOCATION))
-#endif
-
-#include "LoadLibraryRemote.h"
-
-typedef struct {
-  PIMAGE_NT_HEADERS headers;
-  unsigned char *localCodeBase;
-  unsigned char *remoteCodeBase;
-  HMODULE *modules;
-  int numModules;
-} MEMORYMODULE, *PMEMORYMODULE;
-
-typedef BOOL (WINAPI *DllEntryProc)(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpReserved);
-
-#define GET_HEADER_DICTIONARY(module, idx)  &(module)->headers->OptionalHeader.DataDirectory[idx]
-
-#ifdef DEBUG_OUTPUT
-static void
-OutputLastError(const char *msg)
-{
-  char* tmp;
-  char *tmpmsg;
-  FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
-                 nullptr, GetLastError(),
-                 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-                 (LPSTR) &tmp, 0, nullptr);
-  tmpmsg = (char *)LocalAlloc(LPTR, strlen(msg) + strlen(tmp) + 3);
-  sprintf(tmpmsg, "%s: %s", msg, tmp);
-  OutputDebugStringA(tmpmsg);
-  LocalFree(tmpmsg);
-  LocalFree(tmp);
-}
-#endif
-
-static void
-CopySections(const unsigned char *data, PIMAGE_NT_HEADERS old_headers, PMEMORYMODULE module)
-{
-  int i;
-  unsigned char *codeBase = module->localCodeBase;
-  unsigned char *dest;
-  PIMAGE_SECTION_HEADER section = IMAGE_FIRST_SECTION(module->headers);
-  for (i=0; i<module->headers->FileHeader.NumberOfSections; i++, section++) {
-    dest = codeBase + section->VirtualAddress;
-    memset(dest, 0, section->Misc.VirtualSize);
-    if (section->SizeOfRawData) {
-      memcpy(dest, data + section->PointerToRawData, section->SizeOfRawData);
-    }
-    //     section->Misc.PhysicalAddress = (POINTER_TYPE) module->remoteCodeBase + section->VirtualAddress;
-  }
-}
-
-static bool
-CopyRegion(HANDLE hRemoteProcess, void* remoteAddress, void* localAddress, DWORD size, DWORD protect)
-{
-  if (size > 0) {
-    // Copy the data from local->remote and set the memory protection
-    if (!VirtualAllocEx(hRemoteProcess, remoteAddress, size, MEM_COMMIT, PAGE_READWRITE))
-      return false;
-
-    if (!WriteProcessMemory(hRemoteProcess,
-                            remoteAddress,
-                            localAddress,
-                            size,
-                            nullptr)) {
-#ifdef DEBUG_OUTPUT
-      OutputLastError("Error writing remote memory.\n");
-#endif
-      return false;
-    }
-
-    DWORD oldProtect;
-    if (VirtualProtectEx(hRemoteProcess, remoteAddress, size, protect, &oldProtect) == 0) {
-#ifdef DEBUG_OUTPUT
-      OutputLastError("Error protecting memory page");
-#endif
-      return false;
-    }
-  }
-  return true;
-}
-// Protection flags for memory pages (Executable, Readable, Writeable)
-static int ProtectionFlags[2][2][2] = {
-  {
-    // not executable
-    {PAGE_NOACCESS, PAGE_WRITECOPY},
-    {PAGE_READONLY, PAGE_READWRITE},
-  }, {
-    // executable
-    {PAGE_EXECUTE, PAGE_EXECUTE_WRITECOPY},
-    {PAGE_EXECUTE_READ, PAGE_EXECUTE_READWRITE},
-  },
-};
-
-static bool
-FinalizeSections(PMEMORYMODULE module, HANDLE hRemoteProcess)
-{
-#ifdef DEBUG_OUTPUT
-  fprintf(stderr, "Finalizing sections: local base %p, remote base %p\n",
-          module->localCodeBase, module->remoteCodeBase);
-#endif
-
-  int i;
-  int numSections = module->headers->FileHeader.NumberOfSections;
-
-  if (numSections < 1)
-    return false;
-
-  PIMAGE_SECTION_HEADER section = IMAGE_FIRST_SECTION(module->headers);
-
-  // Copy any data before the first section (i.e. the image header)
-  if (!CopyRegion(hRemoteProcess, module->remoteCodeBase, module->localCodeBase, section->VirtualAddress, PAGE_READONLY))
-    return false;
-
-  // loop through all sections and change access flags
-  for (i=0; i<numSections; i++, section++) {
-    DWORD protect, size;
-    int executable = (section->Characteristics & IMAGE_SCN_MEM_EXECUTE) != 0;
-    int readable =   (section->Characteristics & IMAGE_SCN_MEM_READ) != 0;
-    int writeable =  (section->Characteristics & IMAGE_SCN_MEM_WRITE) != 0;
-
-    // determine protection flags based on characteristics
-    protect = ProtectionFlags[executable][readable][writeable];
-    if (section->Characteristics & IMAGE_SCN_MEM_NOT_CACHED) {
-      protect |= PAGE_NOCACHE;
-    }
-
-    void* remoteAddress = module->remoteCodeBase + section->VirtualAddress;
-    void* localAddress = module->localCodeBase + section->VirtualAddress;
-
-    // determine size of region
-    size = section->Misc.VirtualSize;
-#ifdef DEBUG_OUTPUT
-      fprintf(stderr, "Copying section %s to %p, size %x, executable %i readable %i writeable %i\n",
-              section->Name, remoteAddress, size, executable, readable, writeable);
-#endif
-    if (!CopyRegion(hRemoteProcess, remoteAddress, localAddress, size, protect))
-      return false;
-  }
-  return true;
-}
-
-static void
-PerformBaseRelocation(PMEMORYMODULE module, SIZE_T delta)
-{
-  DWORD i;
-  unsigned char *codeBase = module->localCodeBase;
-
-  PIMAGE_DATA_DIRECTORY directory = GET_HEADER_DICTIONARY(module, IMAGE_DIRECTORY_ENTRY_BASERELOC);
-  if (directory->Size > 0) {
-    PIMAGE_BASE_RELOCATION relocation = (PIMAGE_BASE_RELOCATION) (codeBase + directory->VirtualAddress);
-    for (; relocation->VirtualAddress > 0; ) {
-      unsigned char *dest = codeBase + relocation->VirtualAddress;
-      unsigned short *relInfo = (unsigned short *)((unsigned char *)relocation + IMAGE_SIZEOF_BASE_RELOCATION);
-      for (i=0; i<((relocation->SizeOfBlock-IMAGE_SIZEOF_BASE_RELOCATION) / 2); i++, relInfo++) {
-        DWORD *patchAddrHL;
-#ifdef _WIN64
-        ULONGLONG *patchAddr64;
-#endif
-        int type, offset;
-
-        // the upper 4 bits define the type of relocation
-        type = *relInfo >> 12;
-        // the lower 12 bits define the offset
-        offset = *relInfo & 0xfff;
-        
-        switch (type)
-        {
-        case IMAGE_REL_BASED_ABSOLUTE:
-          // skip relocation
-          break;
-
-        case IMAGE_REL_BASED_HIGHLOW:
-          // change complete 32 bit address
-          patchAddrHL = (DWORD *) (dest + offset);
-          *patchAddrHL += delta;
-          break;
-        
-#ifdef _WIN64
-        case IMAGE_REL_BASED_DIR64:
-          patchAddr64 = (ULONGLONG *) (dest + offset);
-          *patchAddr64 += delta;
-          break;
-#endif
-
-        default:
-          //printf("Unknown relocation: %d\n", type);
-          break;
-        }
-      }
-
-      // advance to next relocation block
-      relocation = (PIMAGE_BASE_RELOCATION) (((char *) relocation) + relocation->SizeOfBlock);
-    }
-  }
-}
-
-static int
-BuildImportTable(PMEMORYMODULE module)
-{
-  int result=1;
-  unsigned char *codeBase = module->localCodeBase;
-
-  PIMAGE_DATA_DIRECTORY directory = GET_HEADER_DICTIONARY(module, IMAGE_DIRECTORY_ENTRY_IMPORT);
-  if (directory->Size > 0) {
-    PIMAGE_IMPORT_DESCRIPTOR importDesc = (PIMAGE_IMPORT_DESCRIPTOR) (codeBase + directory->VirtualAddress);
-    PIMAGE_IMPORT_DESCRIPTOR importEnd = (PIMAGE_IMPORT_DESCRIPTOR) (codeBase + directory->VirtualAddress + directory->Size);
-
-    for (; importDesc < importEnd && importDesc->Name; importDesc++) {
-      POINTER_TYPE *thunkRef;
-      FARPROC *funcRef;
-      HMODULE handle = GetModuleHandleA((LPCSTR) (codeBase + importDesc->Name));
-      if (handle == nullptr) {
-#if DEBUG_OUTPUT
-        OutputLastError("Can't load library");
-#endif
-        result = 0;
-        break;
-      }
-
-      module->modules = (HMODULE *)realloc(module->modules, (module->numModules+1)*(sizeof(HMODULE)));
-      if (module->modules == nullptr) {
-        result = 0;
-        break;
-      }
-
-      module->modules[module->numModules++] = handle;
-      if (importDesc->OriginalFirstThunk) {
-        thunkRef = (POINTER_TYPE *) (codeBase + importDesc->OriginalFirstThunk);
-        funcRef = (FARPROC *) (codeBase + importDesc->FirstThunk);
-      } else {
-        // no hint table
-        thunkRef = (POINTER_TYPE *) (codeBase + importDesc->FirstThunk);
-        funcRef = (FARPROC *) (codeBase + importDesc->FirstThunk);
-      }
-      for (; *thunkRef; thunkRef++, funcRef++) {
-        if (IMAGE_SNAP_BY_ORDINAL(*thunkRef)) {
-          *funcRef = (FARPROC)GetProcAddress(handle, (LPCSTR)IMAGE_ORDINAL(*thunkRef));
-        } else {
-          PIMAGE_IMPORT_BY_NAME thunkData = (PIMAGE_IMPORT_BY_NAME) (codeBase + (*thunkRef));
-          *funcRef = (FARPROC)GetProcAddress(handle, (LPCSTR)&thunkData->Name);
-        }
-        if (*funcRef == 0) {
-          result = 0;
-          break;
-        }
-      }
-
-      if (!result) {
-        break;
-      }
-    }
-  }
-
-  return result;
-}
-
-static void* MemoryGetProcAddress(PMEMORYMODULE module, const char *name);
-
-void* LoadRemoteLibraryAndGetAddress(HANDLE hRemoteProcess,
-                                     const WCHAR* library,
-                                     const char* symbol)
-{
-  // Map the DLL into memory
-  nsAutoHandle hLibrary(
-    CreateFile(library, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
-               FILE_ATTRIBUTE_NORMAL, nullptr));
-  if (INVALID_HANDLE_VALUE == hLibrary) {
-#if DEBUG_OUTPUT
-    OutputLastError("Couldn't CreateFile the library.\n");
-#endif
-    return nullptr;
-  }
-
-  nsAutoHandle hMapping(
-    CreateFileMapping(hLibrary, nullptr, PAGE_READONLY, 0, 0, nullptr));
-  if (!hMapping) {
-#if DEBUG_OUTPUT
-    OutputLastError("Couldn't CreateFileMapping.\n");
-#endif
-    return nullptr;
-  }
-
-  nsAutoRef<FileView> data(
-    (const unsigned char*) MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0));
-  if (!data) {
-#if DEBUG_OUTPUT
-    OutputLastError("Couldn't MapViewOfFile.\n");
-#endif
-    return nullptr;
-  }
-
-  SIZE_T locationDelta;
-
-  PIMAGE_DOS_HEADER dos_header = (PIMAGE_DOS_HEADER)data.get();
-  if (dos_header->e_magic != IMAGE_DOS_SIGNATURE) {
-#if DEBUG_OUTPUT
-    OutputDebugStringA("Not a valid executable file.\n");
-#endif
-    return nullptr;
-  }
-
-  PIMAGE_NT_HEADERS old_header = (PIMAGE_NT_HEADERS)(data + dos_header->e_lfanew);
-  if (old_header->Signature != IMAGE_NT_SIGNATURE) {
-#if DEBUG_OUTPUT
-    OutputDebugStringA("No PE header found.\n");
-#endif
-    return nullptr;
-  }
-
-  // reserve memory for image of library in this process and the target process
-  unsigned char* localCode = (unsigned char*) VirtualAlloc(nullptr,
-    old_header->OptionalHeader.SizeOfImage,
-    MEM_RESERVE | MEM_COMMIT,
-    PAGE_READWRITE);
-  if (!localCode) {
-#if DEBUG_OUTPUT
-    OutputLastError("Can't reserve local memory.");
-#endif
-  }
-
-  unsigned char* remoteCode = (unsigned char*) VirtualAllocEx(hRemoteProcess, nullptr,
-    old_header->OptionalHeader.SizeOfImage,
-    MEM_RESERVE,
-    PAGE_EXECUTE_READ);
-  if (!remoteCode) {
-#if DEBUG_OUTPUT
-    OutputLastError("Can't reserve remote memory.");
-#endif
-  }
-
-  MEMORYMODULE result;
-  result.localCodeBase = localCode;
-  result.remoteCodeBase = remoteCode;
-  result.numModules = 0;
-  result.modules = nullptr;
-
-  // copy PE header to code
-  memcpy(localCode, dos_header, dos_header->e_lfanew + old_header->OptionalHeader.SizeOfHeaders);
-  result.headers = reinterpret_cast<PIMAGE_NT_HEADERS>(localCode + dos_header->e_lfanew);
-
-  // update position
-  result.headers->OptionalHeader.ImageBase = (POINTER_TYPE)remoteCode;
-
-  // copy sections from DLL file block to new memory location
-  CopySections(data, old_header, &result);
-
-  // adjust base address of imported data
-  locationDelta = (SIZE_T)(remoteCode - old_header->OptionalHeader.ImageBase);
-  if (locationDelta != 0) {
-    PerformBaseRelocation(&result, locationDelta);
-  }
-
-  // load required dlls and adjust function table of imports
-  if (!BuildImportTable(&result)) {
-    return nullptr;
-  }
-
-  // mark memory pages depending on section headers and release
-  // sections that are marked as "discardable"
-  if (!FinalizeSections(&result, hRemoteProcess)) {
-    return nullptr;
-  }
-
-  return MemoryGetProcAddress(&result, symbol);
-}
-
-static void* MemoryGetProcAddress(PMEMORYMODULE module, const char *name)
-{
-  unsigned char *localCodeBase = module->localCodeBase;
-  int idx=-1;
-  DWORD i, *nameRef;
-  WORD *ordinal;
-  PIMAGE_EXPORT_DIRECTORY exports;
-  PIMAGE_DATA_DIRECTORY directory = GET_HEADER_DICTIONARY(module, IMAGE_DIRECTORY_ENTRY_EXPORT);
-  if (directory->Size == 0) {
-    // no export table found
-    return nullptr;
-  }
-
-  exports = (PIMAGE_EXPORT_DIRECTORY) (localCodeBase + directory->VirtualAddress);
-  if (exports->NumberOfNames == 0 || exports->NumberOfFunctions == 0) {
-    // DLL doesn't export anything
-    return nullptr;
-  }
-
-  // search function name in list of exported names
-  nameRef = (DWORD *) (localCodeBase + exports->AddressOfNames);
-  ordinal = (WORD *) (localCodeBase + exports->AddressOfNameOrdinals);
-  for (i=0; i<exports->NumberOfNames; i++, nameRef++, ordinal++) {
-    if (stricmp(name, (const char *) (localCodeBase + (*nameRef))) == 0) {
-      idx = *ordinal;
-      break;
-    }
-  }
-
-  if (idx == -1) {
-    // exported symbol not found
-    return nullptr;
-  }
-
-  if ((DWORD)idx > exports->NumberOfFunctions) {
-    // name <-> ordinal number don't match
-    return nullptr;
-  }
-
-  // AddressOfFunctions contains the RVAs to the "real" functions
-  return module->remoteCodeBase + (*(DWORD *) (localCodeBase + exports->AddressOfFunctions + (idx*4)));
-}