Fix issue 8348: unfork pe_image.h / pe_image.cc

Moved versions of those files from sandbox/src/ to base/ (overwrite versions in
base/ to avoid 64-bit warning).
Removed 'sandbox' namespace, adapted other files as necessary.

BUG=8348
TEST=none
Original review URL: http://codereview.chromium.org/179039
Patch by rsteiner

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@25611 0039d316-1c4b-4281-b951-d872f2087c98

11 files changed, 9 insertions, 1014 deletions

diff --git a/sandbox/src/eat_resolver.cc b/sandbox/src/eat_resolver.cc
index acf4ce3..89d8c94 100644
--- a/sandbox/src/eat_resolver.cc
+++ b/sandbox/src/eat_resolver.cc
@@ -4,7 +4,7 @@
 
 #include "sandbox/src/eat_resolver.h"
 
-#include "sandbox/src/pe_image.h"
+#include "base/pe_image.h"
 #include "sandbox/src/sandbox_nt_util.h"
 
 namespace sandbox {
diff --git a/sandbox/src/interception.cc b/sandbox/src/interception.cc
index fcb38ff..f75fa3a 100644
--- a/sandbox/src/interception.cc
+++ b/sandbox/src/interception.cc
@@ -10,9 +10,9 @@
 #include "sandbox/src/interception.h"
 
 #include "base/logging.h"
+#include "base/pe_image.h"
 #include "base/scoped_ptr.h"
 #include "sandbox/src/interception_internal.h"
-#include "sandbox/src/pe_image.h"
 #include "sandbox/src/sandbox.h"
 #include "sandbox/src/sandbox_utils.h"
 #include "sandbox/src/service_resolver.h"
diff --git a/sandbox/src/pe_image.cc b/sandbox/src/pe_image.cc
deleted file mode 100644
index 75c22b9..0000000
--- a/sandbox/src/pe_image.cc
+++ /dev/null
@@ -1,543 +0,0 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// This file implements PEImage, a generic class to manipulate PE files.
-// This file was adapted from GreenBorder's Code.
-
-#include "sandbox/src/pe_image.h"
-
-namespace sandbox {
-
-// Structure to perform imports enumerations.
-struct EnumAllImportsStorage {
-  sandbox::PEImage::EnumImportsFunction callback;
-  PVOID cookie;
-};
-
-// Callback used to enumerate imports. See EnumImportChunksFunction.
-bool ProcessImportChunk(const PEImage &image, LPCSTR module,
-                        PIMAGE_THUNK_DATA name_table,
-                        PIMAGE_THUNK_DATA iat, PVOID cookie) {
-  EnumAllImportsStorage &storage = *reinterpret_cast<EnumAllImportsStorage*>(
-                                       cookie);
-
-  return image.EnumOneImportChunk(storage.callback, module, name_table, iat,
-                                  storage.cookie);
-}
-
-// Callback used to enumerate delay imports. See EnumDelayImportChunksFunction.
-bool ProcessDelayImportChunk(const PEImage &image,
-                             PImgDelayDescr delay_descriptor,
-                             LPCSTR module, PIMAGE_THUNK_DATA name_table,
-                             PIMAGE_THUNK_DATA iat, PIMAGE_THUNK_DATA bound_iat,
-                             PIMAGE_THUNK_DATA unload_iat, PVOID cookie) {
-  EnumAllImportsStorage &storage = *reinterpret_cast<EnumAllImportsStorage*>(
-                                       cookie);
-
-  return image.EnumOneDelayImportChunk(storage.callback, delay_descriptor,
-                                       module, name_table, iat, bound_iat,
-                                       unload_iat, storage.cookie);
-}
-
-}  // namespace
-
-namespace sandbox {
-
-void PEImage::set_module(HMODULE module) {
-  module_ = module;
-}
-
-PIMAGE_DOS_HEADER PEImage::GetDosHeader() const {
-  return reinterpret_cast<PIMAGE_DOS_HEADER>(module_);
-}
-
-PIMAGE_NT_HEADERS PEImage::GetNTHeaders() const {
-  PIMAGE_DOS_HEADER dos_header = GetDosHeader();
-
-  return reinterpret_cast<PIMAGE_NT_HEADERS>(
-      reinterpret_cast<char*>(dos_header) + dos_header->e_lfanew);
-}
-
-PIMAGE_SECTION_HEADER PEImage::GetSectionHeader(UINT section) const {
-  PIMAGE_NT_HEADERS nt_headers = GetNTHeaders();
-  PIMAGE_SECTION_HEADER first_section = IMAGE_FIRST_SECTION(nt_headers);
-
-  if (section < nt_headers->FileHeader.NumberOfSections)
-    return first_section + section;
-  else
-    return NULL;
-}
-
-WORD PEImage::GetNumSections() const {
-  return GetNTHeaders()->FileHeader.NumberOfSections;
-}
-
-DWORD PEImage::GetImageDirectoryEntrySize(UINT directory) const {
-  PIMAGE_NT_HEADERS nt_headers = GetNTHeaders();
-
-  return nt_headers->OptionalHeader.DataDirectory[directory].Size;
-}
-
-PVOID PEImage::GetImageDirectoryEntryAddr(UINT directory) const {
-  PIMAGE_NT_HEADERS nt_headers = GetNTHeaders();
-
-  return RVAToAddr(
-      nt_headers->OptionalHeader.DataDirectory[directory].VirtualAddress);
-}
-
-PIMAGE_SECTION_HEADER PEImage::GetImageSectionFromAddr(PVOID address) const {
-  PBYTE target = reinterpret_cast<PBYTE>(address);
-  PIMAGE_SECTION_HEADER section;
-
-  for (UINT i = 0; NULL != (section = GetSectionHeader(i)); i++) {
-    // Don't use the virtual RVAToAddr.
-    PBYTE start = reinterpret_cast<PBYTE>(
-                      PEImage::RVAToAddr(section->VirtualAddress));
-
-    DWORD size = section->Misc.VirtualSize;
-
-    if ((start <= target) && (start + size > target))
-      return section;
-  }
-
-  return NULL;
-}
-
-PIMAGE_SECTION_HEADER PEImage::GetImageSectionHeaderByName(
-    LPCSTR section_name) const {
-  if (NULL == section_name)
-    return NULL;
-
-  PIMAGE_SECTION_HEADER ret = NULL;
-  int num_sections = GetNumSections();
-
-  for (int i = 0; i < num_sections; i++) {
-    PIMAGE_SECTION_HEADER section = GetSectionHeader(i);
-    if (0 == _strnicmp(reinterpret_cast<LPCSTR>(section->Name), section_name,
-                       sizeof(section->Name))) {
-      ret = section;
-      break;
-    }
-  }
-
-  return ret;
-}
-
-PDWORD PEImage::GetExportEntry(LPCSTR name) const {
-  PIMAGE_EXPORT_DIRECTORY exports = GetExportDirectory();
-
-  if (NULL == exports)
-    return NULL;
-
-  WORD ordinal = 0;
-  if (!GetProcOrdinal(name, &ordinal))
-    return NULL;
-
-  PDWORD functions = reinterpret_cast<PDWORD>(
-                         RVAToAddr(exports->AddressOfFunctions));
-
-  return functions + ordinal - exports->Base;
-}
-
-FARPROC PEImage::GetProcAddress(LPCSTR function_name) const {
-  PDWORD export_entry = GetExportEntry(function_name);
-  if (NULL == export_entry)
-    return NULL;
-
-  PBYTE function = reinterpret_cast<PBYTE>(RVAToAddr(*export_entry));
-
-  PBYTE exports = reinterpret_cast<PBYTE>(
-      GetImageDirectoryEntryAddr(IMAGE_DIRECTORY_ENTRY_EXPORT));
-  DWORD size = GetImageDirectoryEntrySize(IMAGE_DIRECTORY_ENTRY_EXPORT);
-
-  // Check for forwarded exports as a special case.
-  if (exports <= function && exports + size > function)
-#pragma warning(push)
-#pragma warning(disable: 4312)
-    // This cast generates a warning because it is 32 bit specific.
-    return reinterpret_cast<FARPROC>(0xFFFFFFFF);
-#pragma warning(pop)
-
-  return reinterpret_cast<FARPROC>(function);
-}
-
-bool PEImage::GetProcOrdinal(LPCSTR function_name, WORD *ordinal) const {
-  if (NULL == ordinal)
-    return false;
-
-  PIMAGE_EXPORT_DIRECTORY exports = GetExportDirectory();
-
-  if (NULL == exports)
-    return false;
-
-  if (IsOrdinal(function_name)) {
-    *ordinal = ToOrdinal(function_name);
-  } else {
-    PDWORD names = reinterpret_cast<PDWORD>(RVAToAddr(exports->AddressOfNames));
-    PDWORD lower = names;
-    PDWORD upper = names + exports->NumberOfNames;
-    int cmp = -1;
-
-    // Binary Search for the name.
-    while (lower != upper) {
-      PDWORD middle = lower + (upper - lower) / 2;
-      LPCSTR name = reinterpret_cast<LPCSTR>(RVAToAddr(*middle));
-
-      cmp = strcmp(function_name, name);
-
-      if (cmp == 0) {
-        lower = middle;
-        break;
-      }
-
-      if (cmp > 0)
-        lower = middle + 1;
-      else
-        upper = middle;
-    }
-
-    if (cmp != 0)
-      return false;
-
-
-    PWORD ordinals = reinterpret_cast<PWORD>(
-                         RVAToAddr(exports->AddressOfNameOrdinals));
-
-    *ordinal = ordinals[lower - names] + static_cast<WORD>(exports->Base);
-  }
-
-  return true;
-}
-
-bool PEImage::EnumSections(EnumSectionsFunction callback, PVOID cookie) const {
-  PIMAGE_NT_HEADERS nt_headers = GetNTHeaders();
-  UINT num_sections = nt_headers->FileHeader.NumberOfSections;
-  PIMAGE_SECTION_HEADER section = GetSectionHeader(0);
-
-  for (UINT i = 0; i < num_sections; i++, section++) {
-    PVOID section_start = RVAToAddr(section->VirtualAddress);
-    DWORD size = section->Misc.VirtualSize;
-
-    if (!callback(*this, section, section_start, size, cookie))
-      return false;
-  }
-
-  return true;
-}
-
-bool PEImage::EnumExports(EnumExportsFunction callback, PVOID cookie) const {
-  PVOID directory = GetImageDirectoryEntryAddr(IMAGE_DIRECTORY_ENTRY_EXPORT);
-  DWORD size = GetImageDirectoryEntrySize(IMAGE_DIRECTORY_ENTRY_EXPORT);
-
-  // Check if there are any exports at all.
-  if (NULL == directory || 0 == size)
-    return true;
-
-  PIMAGE_EXPORT_DIRECTORY exports = reinterpret_cast<PIMAGE_EXPORT_DIRECTORY>(
-                                        directory);
-  UINT ordinal_base = exports->Base;
-  UINT num_funcs = exports->NumberOfFunctions;
-  UINT num_names = exports->NumberOfNames;
-  PDWORD functions  = reinterpret_cast<PDWORD>(RVAToAddr(
-                          exports->AddressOfFunctions));
-  PDWORD names = reinterpret_cast<PDWORD>(RVAToAddr(exports->AddressOfNames));
-  PWORD ordinals = reinterpret_cast<PWORD>(RVAToAddr(
-                       exports->AddressOfNameOrdinals));
-
-  for (UINT count = 0; count < num_funcs; count++) {
-    PVOID func = RVAToAddr(functions[count]);
-    if (NULL == func)
-      continue;
-
-    // Check for a name.
-    LPCSTR name = NULL;
-    UINT hint;
-    for (hint = 0; hint < num_names; hint++) {
-      if (ordinals[hint] == count) {
-        name = reinterpret_cast<LPCSTR>(RVAToAddr(names[hint]));
-        break;
-      }
-    }
-
-    if (name == NULL)
-      hint = 0;
-
-    // Check for forwarded exports.
-    LPCSTR forward = NULL;
-    if (reinterpret_cast<char*>(func) >= reinterpret_cast<char*>(directory) &&
-        reinterpret_cast<char*>(func) <= reinterpret_cast<char*>(directory) +
-            size) {
-      forward = reinterpret_cast<LPCSTR>(func);
-      func = 0;
-    }
-
-    if (!callback(*this, ordinal_base + count, hint, name, func, forward,
-                  cookie))
-      return false;
-  }
-
-  return true;
-}
-
-bool PEImage::EnumRelocs(EnumRelocsFunction callback, PVOID cookie) const {
-  PVOID directory = GetImageDirectoryEntryAddr(IMAGE_DIRECTORY_ENTRY_BASERELOC);
-  DWORD size = GetImageDirectoryEntrySize(IMAGE_DIRECTORY_ENTRY_BASERELOC);
-  PIMAGE_BASE_RELOCATION base = reinterpret_cast<PIMAGE_BASE_RELOCATION>(
-      directory);
-
-  if (directory == NULL || size < sizeof(IMAGE_BASE_RELOCATION))
-    return true;
-
-  while (base->SizeOfBlock) {
-    PWORD reloc = reinterpret_cast<PWORD>(base + 1);
-    UINT num_relocs = (base->SizeOfBlock - sizeof(IMAGE_BASE_RELOCATION)) /
-        sizeof(WORD);
-
-    for (UINT i = 0; i < num_relocs; i++, reloc++) {
-      WORD type = *reloc >> 12;
-      PVOID address = RVAToAddr(base->VirtualAddress + (*reloc & 0x0FFF));
-
-      if (!callback(*this, type, address, cookie))
-        return false;
-    }
-
-    base = reinterpret_cast<PIMAGE_BASE_RELOCATION>(
-               reinterpret_cast<char*>(base) + base->SizeOfBlock);
-  }
-
-  return true;
-}
-
-bool PEImage::EnumImportChunks(EnumImportChunksFunction callback,
-                               PVOID cookie) const {
-  DWORD size = GetImageDirectoryEntrySize(IMAGE_DIRECTORY_ENTRY_IMPORT);
-  PIMAGE_IMPORT_DESCRIPTOR import = GetFirstImportChunk();
-
-  if (import == NULL || size < sizeof(IMAGE_IMPORT_DESCRIPTOR))
-    return true;
-
-  for (; import->FirstThunk; import++) {
-    LPCSTR module_name = reinterpret_cast<LPCSTR>(RVAToAddr(import->Name));
-    PIMAGE_THUNK_DATA name_table = reinterpret_cast<PIMAGE_THUNK_DATA>(
-                                       RVAToAddr(import->OriginalFirstThunk));
-    PIMAGE_THUNK_DATA iat = reinterpret_cast<PIMAGE_THUNK_DATA>(
-                                RVAToAddr(import->FirstThunk));
-
-    if (!callback(*this, module_name, name_table, iat, cookie))
-      return false;
-  }
-
-  return true;
-}
-
-bool PEImage::EnumOneImportChunk(EnumImportsFunction callback,
-                                 LPCSTR module_name,
-                                 PIMAGE_THUNK_DATA name_table,
-                                 PIMAGE_THUNK_DATA iat, PVOID cookie) const {
-  if (NULL == name_table)
-    return false;
-
-  for (; name_table && name_table->u1.Ordinal; name_table++, iat++) {
-    LPCSTR name = NULL;
-    WORD ordinal = 0;
-    WORD hint = 0;
-
-    if (IMAGE_SNAP_BY_ORDINAL(name_table->u1.Ordinal)) {
-      ordinal = static_cast<WORD>(IMAGE_ORDINAL32(name_table->u1.Ordinal));
-    } else {
-      PIMAGE_IMPORT_BY_NAME import = reinterpret_cast<PIMAGE_IMPORT_BY_NAME>(
-          RVAToAddr(name_table->u1.ForwarderString));
-
-      hint = import->Hint;
-      name = reinterpret_cast<LPCSTR>(&import->Name);
-    }
-
-    if (!callback(*this, module_name, ordinal, name, hint, iat, cookie))
-      return false;
-  }
-
-  return true;
-}
-
-bool PEImage::EnumAllImports(EnumImportsFunction callback, PVOID cookie) const {
-  EnumAllImportsStorage temp = { callback, cookie };
-  return EnumImportChunks(ProcessImportChunk, &temp);
-}
-
-bool PEImage::EnumDelayImportChunks(EnumDelayImportChunksFunction callback,
-                                    PVOID cookie) const {
-  PVOID directory = GetImageDirectoryEntryAddr(
-                        IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT);
-  DWORD size = GetImageDirectoryEntrySize(IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT);
-  PImgDelayDescr delay_descriptor = reinterpret_cast<PImgDelayDescr>(directory);
-
-  if (directory == NULL || size == 0)
-    return true;
-
-  for (; delay_descriptor->rvaHmod; delay_descriptor++) {
-    PIMAGE_THUNK_DATA name_table;
-    PIMAGE_THUNK_DATA iat;
-    PIMAGE_THUNK_DATA bound_iat;    // address of the optional bound IAT
-    PIMAGE_THUNK_DATA unload_iat;   // address of optional copy of original IAT
-    LPCSTR module_name;
-
-    // check if VC7-style imports, using RVAs instead of
-    // VC6-style addresses.
-    bool rvas = (delay_descriptor->grAttrs & dlattrRva) != 0;
-
-    if (rvas) {
-      module_name = reinterpret_cast<LPCSTR>(
-                        RVAToAddr(delay_descriptor->rvaDLLName));
-      name_table = reinterpret_cast<PIMAGE_THUNK_DATA>(
-                       RVAToAddr(delay_descriptor->rvaINT));
-      iat = reinterpret_cast<PIMAGE_THUNK_DATA>(
-                RVAToAddr(delay_descriptor->rvaIAT));
-      bound_iat = reinterpret_cast<PIMAGE_THUNK_DATA>(
-                      RVAToAddr(delay_descriptor->rvaBoundIAT));
-      unload_iat = reinterpret_cast<PIMAGE_THUNK_DATA>(
-                       RVAToAddr(delay_descriptor->rvaUnloadIAT));
-    } else {
-#pragma warning(push)
-#pragma warning(disable: 4312)
-      // These casts generate warnings because they are 32 bit specific.
-      module_name = reinterpret_cast<LPCSTR>(delay_descriptor->rvaDLLName);
-      name_table = reinterpret_cast<PIMAGE_THUNK_DATA>(
-                       delay_descriptor->rvaINT);
-      iat = reinterpret_cast<PIMAGE_THUNK_DATA>(delay_descriptor->rvaIAT);
-      bound_iat = reinterpret_cast<PIMAGE_THUNK_DATA>(
-                      delay_descriptor->rvaBoundIAT);
-      unload_iat = reinterpret_cast<PIMAGE_THUNK_DATA>(
-                       delay_descriptor->rvaUnloadIAT);
-#pragma warning(pop)
-    }
-
-    if (!callback(*this, delay_descriptor, module_name, name_table, iat,
-                  bound_iat, unload_iat, cookie))
-      return false;
-  }
-
-  return true;
-}
-
-bool PEImage::EnumOneDelayImportChunk(EnumImportsFunction callback,
-                                      PImgDelayDescr delay_descriptor,
-                                      LPCSTR module_name,
-                                      PIMAGE_THUNK_DATA name_table,
-                                      PIMAGE_THUNK_DATA iat,
-                                      PIMAGE_THUNK_DATA bound_iat,
-                                      PIMAGE_THUNK_DATA unload_iat,
-                                      PVOID cookie) const {
-  UNREFERENCED_PARAMETER(bound_iat);
-  UNREFERENCED_PARAMETER(unload_iat);
-
-  for (; name_table->u1.Ordinal; name_table++, iat++) {
-    LPCSTR name = NULL;
-    WORD ordinal = 0;
-    WORD hint = 0;
-
-    if (IMAGE_SNAP_BY_ORDINAL(name_table->u1.Ordinal)) {
-      ordinal = static_cast<WORD>(IMAGE_ORDINAL32(name_table->u1.Ordinal));
-    } else {
-      PIMAGE_IMPORT_BY_NAME import;
-      bool rvas = (delay_descriptor->grAttrs & dlattrRva) != 0;
-
-      if (rvas) {
-        import = reinterpret_cast<PIMAGE_IMPORT_BY_NAME>(
-                     RVAToAddr(name_table->u1.ForwarderString));
-      } else {
-#pragma warning(push)
-#pragma warning(disable: 4312)
-        // This cast generates a warning because it is 32 bit specific.
-        import = reinterpret_cast<PIMAGE_IMPORT_BY_NAME>(
-                     name_table->u1.ForwarderString);
-#pragma warning(pop)
-      }
-
-      hint = import->Hint;
-      name = reinterpret_cast<LPCSTR>(&import->Name);
-    }
-
-    if (!callback(*this, module_name, ordinal, name, hint, iat, cookie))
-      return false;
-  }
-
-  return true;
-}
-
-bool PEImage::EnumAllDelayImports(EnumImportsFunction callback,
-                                  PVOID cookie) const {
-  EnumAllImportsStorage temp = { callback, cookie };
-  return EnumDelayImportChunks(ProcessDelayImportChunk, &temp);
-}
-
-bool PEImage::VerifyMagic() const {
-  PIMAGE_DOS_HEADER dos_header = GetDosHeader();
-
-  if (dos_header->e_magic != IMAGE_DOS_SIGNATURE)
-    return false;
-
-  PIMAGE_NT_HEADERS nt_headers = GetNTHeaders();
-
-  if (nt_headers->Signature != IMAGE_NT_SIGNATURE)
-    return false;
-
-  if (nt_headers->FileHeader.SizeOfOptionalHeader !=
-      sizeof(IMAGE_OPTIONAL_HEADER))
-    return false;
-
-  if (nt_headers->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR_MAGIC)
-    return false;
-
-  return true;
-}
-
-bool PEImage::ImageRVAToOnDiskOffset(DWORD rva, DWORD *on_disk_offset) const {
-  LPVOID address = RVAToAddr(rva);
-  return ImageAddrToOnDiskOffset(address, on_disk_offset);
-}
-
-bool PEImage::ImageAddrToOnDiskOffset(LPVOID address,
-                                      DWORD *on_disk_offset) const {
-  if (NULL == address)
-    return false;
-
-  // Get the section that this address belongs to.
-  PIMAGE_SECTION_HEADER section_header = GetImageSectionFromAddr(address);
-  if (NULL == section_header)
-    return false;
-
-#pragma warning(push)
-#pragma warning(disable: 4311)
-  // These casts generate warnings because they are 32 bit specific.
-  // Don't follow the virtual RVAToAddr, use the one on the base.
-  DWORD offset_within_section = reinterpret_cast<DWORD>(address) -
-                                    reinterpret_cast<DWORD>(PEImage::RVAToAddr(
-                                        section_header->VirtualAddress));
-#pragma warning(pop)
-
-  *on_disk_offset = section_header->PointerToRawData + offset_within_section;
-  return true;
-}
-
-PVOID PEImage::RVAToAddr(DWORD rva) const {
-  if (rva == 0)
-    return NULL;
-
-  return reinterpret_cast<char*>(module_) + rva;
-}
-
-PVOID PEImageAsData::RVAToAddr(DWORD rva) const {
-  if (rva == 0)
-    return NULL;
-
-  PVOID in_memory = PEImage::RVAToAddr(rva);
-  DWORD dummy;
-
-  if (!ImageAddrToOnDiskOffset(in_memory, &dummy))
-    return NULL;
-
-  return in_memory;
-}
-
-}  // namespace sandbox
diff --git a/sandbox/src/pe_image.h b/sandbox/src/pe_image.h
deleted file mode 100644
index fd36578..0000000
--- a/sandbox/src/pe_image.h
+++ /dev/null
@@ -1,261 +0,0 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// This file was adapted from GreenBorder's Code.
-// To understand what this class is about (for other than well known functions
-// as GetProcAddress), a good starting point is "An In-Depth Look into the
-// Win32 Portable Executable File Format" by Matt Pietrek:
-// http://msdn.microsoft.com/msdnmag/issues/02/02/PE/default.aspx
-
-#ifndef SANDBOX_SRC_PE_IMAGE_H__
-#define SANDBOX_SRC_PE_IMAGE_H__
-
-#include <windows.h>
-#include <DelayIMP.h>
-
-namespace sandbox {
-
-// This class is a wrapper for the Portable Executable File Format (PE).
-// It's main purpose is to provide an easy way to work with imports and exports
-// from a file, mapped in memory as image.
-class PEImage {
- public:
-  // Callback to enumerate sections.
-  // cookie is the value passed to the enumerate method.
-  // Returns true to continue the enumeration.
-  typedef bool (*EnumSectionsFunction)(const PEImage &image,
-                                       PIMAGE_SECTION_HEADER header,
-                                       PVOID section_start, DWORD section_size,
-                                       PVOID cookie);
-
-  // Callback to enumerate exports.
-  // function is the actual address of the symbol. If forward is not null, it
-  // contains the dll and symbol to forward this export to. cookie is the value
-  // passed to the enumerate method.
-  // Returns true to continue the enumeration.
-  typedef bool (*EnumExportsFunction)(const PEImage &image, DWORD ordinal,
-                                      DWORD hint, LPCSTR name, PVOID function,
-                                      LPCSTR forward, PVOID cookie);
-
-  // Callback to enumerate import blocks.
-  // name_table and iat point to the imports name table and address table for
-  // this block. cookie is the value passed to the enumerate method.
-  // Returns true to continue the enumeration.
-  typedef bool (*EnumImportChunksFunction)(const PEImage &image, LPCSTR module,
-                                           PIMAGE_THUNK_DATA name_table,
-                                           PIMAGE_THUNK_DATA iat, PVOID cookie);
-
-  // Callback to enumerate imports.
-  // module is the dll that exports this symbol. cookie is the value passed to
-  // the enumerate method.
-  // Returns true to continue the enumeration.
-  typedef bool (*EnumImportsFunction)(const PEImage &image, LPCSTR module,
-                                      DWORD ordinal, LPCSTR name, DWORD hint,
-                                      PIMAGE_THUNK_DATA iat, PVOID cookie);
-
-  // Callback to enumerate dalayed import blocks.
-  // module is the dll that exports this block of symbols. cookie is the value
-  // passed to the enumerate method.
-  // Returns true to continue the enumeration.
-  typedef bool (*EnumDelayImportChunksFunction)(const PEImage &image,
-                                                PImgDelayDescr delay_descriptor,
-                                                LPCSTR module,
-                                                PIMAGE_THUNK_DATA name_table,
-                                                PIMAGE_THUNK_DATA iat,
-                                                PIMAGE_THUNK_DATA bound_iat,
-                                                PIMAGE_THUNK_DATA unload_iat,
-                                                PVOID cookie);
-
-  // Callback to enumerate relocations.
-  // cookie is the value passed to the enumerate method.
-  // Returns true to continue the enumeration.
-  typedef bool (*EnumRelocsFunction)(const PEImage &image, WORD type,
-                                     PVOID address, PVOID cookie);
-
-  explicit PEImage(HMODULE module) : module_(module) {}
-  explicit PEImage(const void* module) {
-    module_ = reinterpret_cast<HMODULE>(const_cast<void*>(module));
-  }
-
-  // Gets the HMODULE for this object.
-  HMODULE module() const;
-
-  // Sets this object's HMODULE.
-  void set_module(HMODULE module);
-
-  // Checks if this symbol is actually an ordinal.
-  static bool IsOrdinal(LPCSTR name);
-
-  // Converts a named symbol to the corresponding ordinal.
-  static WORD ToOrdinal(LPCSTR name);
-
-  // Returns the DOS_HEADER for this PE.
-  PIMAGE_DOS_HEADER GetDosHeader() const;
-
-  // Returns the NT_HEADER for this PE.
-  PIMAGE_NT_HEADERS GetNTHeaders() const;
-
-  // Returns number of sections of this PE.
-  WORD GetNumSections() const;
-
-  // Returns the header for a given section.
-  // returns NULL if there is no such section.
-  PIMAGE_SECTION_HEADER GetSectionHeader(UINT section) const;
-
-  // Returns the size of a given directory entry.
-  DWORD GetImageDirectoryEntrySize(UINT directory) const;
-
-  // Returns the address of a given directory entry.
-  PVOID GetImageDirectoryEntryAddr(UINT directory) const;
-
-  // Returns the section header for a given address.
-  // Use: s = image.GetImageSectionFromAddr(a);
-  // Post: 's' is the section header of the section that contains 'a'
-  //       or NULL if there is no such section.
-  PIMAGE_SECTION_HEADER GetImageSectionFromAddr(PVOID address) const;
-
-  // Returns the section header for a given section.
-  PIMAGE_SECTION_HEADER GetImageSectionHeaderByName(LPCSTR section_name) const;
-
-  // Returns the first block of imports.
-  PIMAGE_IMPORT_DESCRIPTOR GetFirstImportChunk() const;
-
-  // Returns the exports directory.
-  PIMAGE_EXPORT_DIRECTORY GetExportDirectory() const;
-
-  // Returns a given export entry.
-  // Use: e = image.GetExportEntry(f);
-  // Pre: 'f' is either a zero terminated string or ordinal
-  // Post: 'e' is a pointer to the export directory entry
-  //       that contains 'f's export RVA, or NULL if 'f'
-  //       is not exported from this image
-  PDWORD GetExportEntry(LPCSTR name) const;
-
-  // Returns the address for a given exported symbol.
-  // Use: p = image.GetProcAddress(f);
-  // Pre: 'f' is either a zero terminated string or ordinal.
-  // Post: if 'f' is a non-forwarded export from image, 'p' is
-  //       the exported function. If 'f' is a forwarded export
-  //       then p is the special value 0xFFFFFFFF. In this case
-  //       RVAToAddr(*GetExportEntry) can be used to resolve
-  //       the string that describes the forward.
-  FARPROC GetProcAddress(LPCSTR function_name) const;
-
-  // Retrieves the ordinal for a given exported symbol.
-  // Returns true if the symbol was found.
-  bool GetProcOrdinal(LPCSTR function_name, WORD *ordinal) const;
-
-  // Enumerates PE sections.
-  // cookie is a generic cookie to pass to the callback.
-  // Returns true on success.
-  bool EnumSections(EnumSectionsFunction callback, PVOID cookie) const;
-
-  // Enumerates PE exports.
-  // cookie is a generic cookie to pass to the callback.
-  // Returns true on success.
-  bool EnumExports(EnumExportsFunction callback, PVOID cookie) const;
-
-  // Enumerates PE imports.
-  // cookie is a generic cookie to pass to the callback.
-  // Returns true on success.
-  bool EnumAllImports(EnumImportsFunction callback, PVOID cookie) const;
-
-  // Enumerates PE import blocks.
-  // cookie is a generic cookie to pass to the callback.
-  // Returns true on success.
-  bool EnumImportChunks(EnumImportChunksFunction callback, PVOID cookie) const;
-
-  // Enumerates the imports from a single PE import block.
-  // cookie is a generic cookie to pass to the callback.
-  // Returns true on success.
-  bool EnumOneImportChunk(EnumImportsFunction callback, LPCSTR module_name,
-                          PIMAGE_THUNK_DATA name_table, PIMAGE_THUNK_DATA iat,
-                          PVOID cookie) const;
-
-
-  // Enumerates PE delay imports.
-  // cookie is a generic cookie to pass to the callback.
-  // Returns true on success.
-  bool EnumAllDelayImports(EnumImportsFunction callback, PVOID cookie) const;
-
-  // Enumerates PE delay import blocks.
-  // cookie is a generic cookie to pass to the callback.
-  // Returns true on success.
-  bool EnumDelayImportChunks(EnumDelayImportChunksFunction callback,
-                             PVOID cookie) const;
-
-  // Enumerates imports from a single PE delay import block.
-  // cookie is a generic cookie to pass to the callback.
-  // Returns true on success.
-  bool EnumOneDelayImportChunk(EnumImportsFunction callback,
-                               PImgDelayDescr delay_descriptor,
-                               LPCSTR module_name,
-                               PIMAGE_THUNK_DATA name_table,
-                               PIMAGE_THUNK_DATA iat,
-                               PIMAGE_THUNK_DATA bound_iat,
-                               PIMAGE_THUNK_DATA unload_iat,
-                               PVOID cookie) const;
-
-  // Enumerates PE relocation entries.
-  // cookie is a generic cookie to pass to the callback.
-  // Returns true on success.
-  bool EnumRelocs(EnumRelocsFunction callback, PVOID cookie) const;
-
-  // Verifies the magic values on the PE file.
-  // Returns true if all values are correct.
-  bool VerifyMagic() const;
-
-  // Converts an rva value to the appropriate address.
-  virtual PVOID RVAToAddr(DWORD rva) const;
-
-  // Converts an rva value to an offset on disk.
-  // Returns true on success.
-  bool ImageRVAToOnDiskOffset(DWORD rva, DWORD *on_disk_offset) const;
-
-  // Converts an address to an offset on disk.
-  // Returns true on success.
-  bool ImageAddrToOnDiskOffset(LPVOID address, DWORD *on_disk_offset) const;
-
- private:
-  HMODULE module_;
-};
-
-// This class is an extension to the PEImage class that allows working with PE
-// files mapped as data instead of as image file.
-class PEImageAsData : public PEImage {
- public:
-  explicit PEImageAsData(HMODULE hModule) : PEImage(hModule) {}
-
-  virtual PVOID RVAToAddr(DWORD rva) const;
-};
-
-inline bool PEImage::IsOrdinal(LPCSTR name) {
-#pragma warning(push)
-#pragma warning(disable: 4311)
-  // This cast generates a warning because it is 32 bit specific.
-  return reinterpret_cast<DWORD>(name) <= 0xFFFF;
-#pragma warning(pop)
-}
-
-inline WORD PEImage::ToOrdinal(LPCSTR name) {
-  return reinterpret_cast<WORD>(name);
-}
-
-inline HMODULE PEImage::module() const {
-  return module_;
-}
-
-inline PIMAGE_IMPORT_DESCRIPTOR PEImage::GetFirstImportChunk() const {
-  return reinterpret_cast<PIMAGE_IMPORT_DESCRIPTOR>(
-             GetImageDirectoryEntryAddr(IMAGE_DIRECTORY_ENTRY_IMPORT));
-}
-
-inline PIMAGE_EXPORT_DIRECTORY PEImage::GetExportDirectory() const {
-  return reinterpret_cast<PIMAGE_EXPORT_DIRECTORY>(
-             GetImageDirectoryEntryAddr(IMAGE_DIRECTORY_ENTRY_EXPORT));
-}
-
-}  // namespace sandbox
-
-#endif  // SANDBOX_SRC_PE_IMAGE_H__
diff --git a/sandbox/src/pe_image_unittest.cc b/sandbox/src/pe_image_unittest.cc
deleted file mode 100644
index 9f0ea09..0000000
--- a/sandbox/src/pe_image_unittest.cc
+++ /dev/null
@@ -1,201 +0,0 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// This file contains unit tests for PEImage.
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "sandbox/src/pe_image.h"
-
-// Just counts the number of invocations.
-bool ExportsCallback(const sandbox::PEImage &image,
-                     DWORD ordinal,
-                     DWORD hint,
-                     LPCSTR name,
-                     PVOID function,
-                     LPCSTR forward,
-                     PVOID cookie) {
-  int* count = reinterpret_cast<int*>(cookie);
-  (*count)++;
-  return true;
-}
-
-// Just counts the number of invocations.
-bool ImportsCallback(const sandbox::PEImage &image,
-                     LPCSTR module,
-                     DWORD ordinal,
-                     LPCSTR name,
-                     DWORD hint,
-                     PIMAGE_THUNK_DATA iat,
-                     PVOID cookie) {
-  int* count = reinterpret_cast<int*>(cookie);
-  (*count)++;
-  return true;
-}
-
-// Just counts the number of invocations.
-bool SectionsCallback(const sandbox::PEImage &image,
-                       PIMAGE_SECTION_HEADER header,
-                       PVOID section_start,
-                       DWORD section_size,
-                       PVOID cookie) {
-  int* count = reinterpret_cast<int*>(cookie);
-  (*count)++;
-  return true;
-}
-
-// Just counts the number of invocations.
-bool RelocsCallback(const sandbox::PEImage &image,
-                    WORD type,
-                    PVOID address,
-                    PVOID cookie) {
-  int* count = reinterpret_cast<int*>(cookie);
-  (*count)++;
-  return true;
-}
-
-// Just counts the number of invocations.
-bool ImportChunksCallback(const sandbox::PEImage &image,
-                          LPCSTR module,
-                          PIMAGE_THUNK_DATA name_table,
-                          PIMAGE_THUNK_DATA iat,
-                          PVOID cookie) {
-  int* count = reinterpret_cast<int*>(cookie);
-  (*count)++;
-  return true;
-}
-
-// Just counts the number of invocations.
-bool DelayImportChunksCallback(const sandbox::PEImage &image,
-                               PImgDelayDescr delay_descriptor,
-                               LPCSTR module,
-                               PIMAGE_THUNK_DATA name_table,
-                               PIMAGE_THUNK_DATA iat,
-                               PIMAGE_THUNK_DATA bound_iat,
-                               PIMAGE_THUNK_DATA unload_iat,
-                               PVOID cookie) {
-  int* count = reinterpret_cast<int*>(cookie);
-  (*count)++;
-  return true;
-}
-
-// We'll be using some known values for the tests.
-enum Value {
-  sections = 0,
-  imports_dlls,
-  delay_dlls,
-  exports,
-  imports,
-  delay_imports,
-  relocs
-};
-
-// Retrieves the expected value from advapi32.dll based on the OS.
-int GetExpectedValue(Value value, DWORD os) {
-  const int xp_delay_dlls = 2;
-  const int xp_exports = 675;
-  const int xp_imports = 422;
-  const int xp_delay_imports = 8;
-  const int xp_relocs = 9180;
-  const int vista_delay_dlls = 4;
-  const int vista_exports = 799;
-  const int vista_imports = 476;
-  const int vista_delay_imports = 24;
-  const int vista_relocs = 10188;
-  const int w2k_delay_dlls = 0;
-  const int w2k_exports = 566;
-  const int w2k_imports = 357;
-  const int w2k_delay_imports = 0;
-  const int w2k_relocs = 7388;
-
-  // Contains the expected value, for each enumerated property (Value), and the
-  // OS version: [Value][os_version]
-  const int expected[][3] = {
-    {4, 4, 4},
-    {3, 3, 3},
-    {w2k_delay_dlls, xp_delay_dlls, vista_delay_dlls},
-    {w2k_exports, xp_exports, vista_exports},
-    {w2k_imports, xp_imports, vista_imports},
-    {w2k_delay_imports, xp_delay_imports, vista_delay_imports},
-    {w2k_relocs, xp_relocs, vista_relocs}
-  };
-
-  if (value > relocs)
-    return 0;
-  if (50 == os)
-    os = 0;  // 5.0
-  else if (51 == os || 52 == os)
-    os = 1;
-  else if (os >= 60)
-    os = 2;  // 6.x
-  else
-    return 0;
-
-  return expected[value][os];
-}
-
-// Tests that we are able to enumerate stuff from a PE file, and that
-// the actual number of items found is within the expected range.
-TEST(PEImageTest, EnumeratesPE) {
-  HMODULE module = LoadLibrary(L"advapi32.dll");
-  ASSERT_TRUE(NULL != module);
-
-  sandbox::PEImage pe(module);
-  int count = 0;
-  EXPECT_TRUE(pe.VerifyMagic());
-
-  DWORD os = pe.GetNTHeaders()->OptionalHeader.MajorOperatingSystemVersion;
-  os = os * 10 + pe.GetNTHeaders()->OptionalHeader.MinorOperatingSystemVersion;
-
-  pe.EnumSections(SectionsCallback, &count);
-  EXPECT_EQ(GetExpectedValue(sections, os), count);
-
-  count = 0;
-  pe.EnumImportChunks(ImportChunksCallback, &count);
-  EXPECT_EQ(GetExpectedValue(imports_dlls, os), count);
-
-  count = 0;
-  pe.EnumDelayImportChunks(DelayImportChunksCallback, &count);
-  EXPECT_EQ(GetExpectedValue(delay_dlls, os), count);
-
-  count = 0;
-  pe.EnumExports(ExportsCallback, &count);
-  EXPECT_GT(count, GetExpectedValue(exports, os) - 20);
-  EXPECT_LT(count, GetExpectedValue(exports, os) + 100);
-
-  count = 0;
-  pe.EnumAllImports(ImportsCallback, &count);
-  EXPECT_GT(count, GetExpectedValue(imports, os) - 20);
-  EXPECT_LT(count, GetExpectedValue(imports, os) + 100);
-
-  count = 0;
-  pe.EnumAllDelayImports(ImportsCallback, &count);
-  EXPECT_GT(count, GetExpectedValue(delay_imports, os) - 2);
-  EXPECT_LT(count, GetExpectedValue(delay_imports, os) + 8);
-
-  count = 0;
-  pe.EnumRelocs(RelocsCallback, &count);
-  EXPECT_GT(count, GetExpectedValue(relocs, os) - 150);
-  EXPECT_LT(count, GetExpectedValue(relocs, os) + 1500);
-
-  FreeLibrary(module);
-}
-
-// Tests that we can locate an specific exported symbol, by name and by ordinal.
-TEST(PEImageTest, RetrievesExports) {
-  HMODULE module = LoadLibrary(L"advapi32.dll");
-  ASSERT_TRUE(NULL != module);
-
-  sandbox::PEImage pe(module);
-  WORD ordinal;
-
-  EXPECT_TRUE(pe.GetProcOrdinal("RegEnumKeyExW", &ordinal));
-
-  FARPROC address1 = pe.GetProcAddress("RegEnumKeyExW");
-  FARPROC address2 = pe.GetProcAddress(reinterpret_cast<char*>(ordinal));
-  EXPECT_TRUE(address1 != NULL);
-  EXPECT_TRUE(address2 != NULL);
-  EXPECT_TRUE(address1 == address2);
-
-  FreeLibrary(module);
-}
diff --git a/sandbox/src/policy_broker.cc b/sandbox/src/policy_broker.cc
index 3ef65dd..e3b5023 100644
--- a/sandbox/src/policy_broker.cc
+++ b/sandbox/src/policy_broker.cc
@@ -7,9 +7,9 @@
 #include "sandbox/src/policy_broker.h"
 
 #include "base/logging.h"
+#include "base/pe_image.h"
 #include "base/win_util.h"
 #include "sandbox/src/interception.h"
-#include "sandbox/src/pe_image.h"
 #include "sandbox/src/policy_target.h"
 #include "sandbox/src/process_thread_interception.h"
 #include "sandbox/src/sandbox.h"
diff --git a/sandbox/src/resolver.cc b/sandbox/src/resolver.cc
index ee8bd10..c2a8136 100644
--- a/sandbox/src/resolver.cc
+++ b/sandbox/src/resolver.cc
@@ -4,7 +4,7 @@
 
 #include "sandbox/src/resolver.h"
 
-#include "sandbox/src/pe_image.h"
+#include "base/pe_image.h"
 #include "sandbox/src/sandbox_nt_util.h"
 
 namespace {
diff --git a/sandbox/src/sandbox_nt_util.cc b/sandbox/src/sandbox_nt_util.cc
index e8a56a7..188974e 100644
--- a/sandbox/src/sandbox_nt_util.cc
+++ b/sandbox/src/sandbox_nt_util.cc
@@ -4,7 +4,7 @@
 
 #include "sandbox/src/sandbox_nt_util.h"
 
-#include "sandbox/src/pe_image.h"
+#include "base/pe_image.h"
 #include "sandbox/src/sandbox_factory.h"
 #include "sandbox/src/target_services.h"
 
diff --git a/sandbox/src/service_resolver.cc b/sandbox/src/service_resolver.cc
index 5b8683c..2fae55a 100644
--- a/sandbox/src/service_resolver.cc
+++ b/sandbox/src/service_resolver.cc
@@ -5,8 +5,8 @@
 #include "sandbox/src/service_resolver.h"
 
 #include "base/logging.h"
+#include "base/pe_image.h"
 #include "base/scoped_ptr.h"
-#include "sandbox/src/pe_image.h"
 #include "sandbox/src/sandbox_types.h"
 #include "sandbox/src/sandbox_utils.h"
 
diff --git a/sandbox/src/sidestep_resolver.cc b/sandbox/src/sidestep_resolver.cc
index 4d14a51..74409a8 100644
--- a/sandbox/src/sidestep_resolver.cc
+++ b/sandbox/src/sidestep_resolver.cc
@@ -4,7 +4,7 @@
 
 #include "sandbox/src/sidestep_resolver.h"
 
-#include "sandbox/src/pe_image.h"
+#include "base/pe_image.h"
 #include "sandbox/src/sandbox_nt_util.h"
 #include "sandbox/src/sidestep/preamble_patcher.h"
 
diff --git a/sandbox/src/target_process.cc b/sandbox/src/target_process.cc
index 5bd0a8c..d3ae80d 100644
--- a/sandbox/src/target_process.cc
+++ b/sandbox/src/target_process.cc
@@ -5,10 +5,10 @@
 #include "sandbox/src/target_process.h"
 
 #include "base/basictypes.h"
+#include "base/pe_image.h"
 #include "base/scoped_ptr.h"
 #include "sandbox/src/crosscall_server.h"
 #include "sandbox/src/crosscall_client.h"
-#include "sandbox/src/pe_image.h"
 #include "sandbox/src/policy_low_level.h"
 #include "sandbox/src/sandbox_types.h"
 #include "sandbox/src/sharedmem_ipc_server.h"
@@ -54,7 +54,7 @@ void* GetBaseAddress(const wchar_t* exe_name, void* entry_point) {
   if (NULL == exe)
     return exe;
 
-  sandbox::PEImage pe(exe);
+  PEImage pe(exe);
   if (!pe.VerifyMagic()) {
     ::FreeLibrary(exe);
     return exe;