components/breakpad/app/hard_error_handler_win.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/breakpad/app/hard_error_handler_win.h"
   6
   7 #if defined(_WIN32_WINNT_WIN8) && _MSC_VER < 1700
   8 // The Windows 8 SDK defines FACILITY_VISUALCPP in winerror.h, and in
   9 // delayimp.h previous to VS2012.
  10 #undef FACILITY_VISUALCPP
  11 #endif
  12 #include <DelayIMP.h>
  13 #include <winternl.h>
  14
  15 #include "base/basictypes.h"
  16 #include "base/strings/string_util.h"
  17 #include "components/breakpad/app/breakpad_client.h"
  18
  19 namespace breakpad {
  20
  21 namespace {
  22 const DWORD kExceptionModuleNotFound = VcppException(ERROR_SEVERITY_ERROR,
  23                                                      ERROR_MOD_NOT_FOUND);
  24 const DWORD kExceptionEntryPtNotFound = VcppException(ERROR_SEVERITY_ERROR,
  25                                                       ERROR_PROC_NOT_FOUND);
  26 // This is defined in <ntstatus.h> but we can't include this file here.
  27 const DWORD FACILITY_GRAPHICS_KERNEL = 0x1E;
  28 const DWORD NT_STATUS_ENTRYPOINT_NOT_FOUND = 0xC0000139;
  29 const DWORD NT_STATUS_DLL_NOT_FOUND = 0xC0000135;
  30
  31 // We assume that exception codes are NT_STATUS codes.
  32 DWORD FacilityFromException(DWORD exception_code) {
  33   return (exception_code >> 16) & 0x0FFF;
  34 }
  35
  36 // This is not a generic function. It only works with some |nt_status| values.
  37 // Check the strings here http://msdn.microsoft.com/en-us/library/cc704588.aspx
  38 // before attempting to use this function.
  39 void RaiseHardErrorMsg(long nt_status, const std::string& p1,
  40                                        const std::string& p2) {
  41   // If headless just exit silently.
  42   if (GetBreakpadClient()->IsRunningUnattended())
  43     return;
  44
  45   HMODULE ntdll = ::GetModuleHandleA("NTDLL.DLL");
  46   wchar_t* msg_template = NULL;
  47   size_t count = ::FormatMessage(
  48       FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS |
  49       FORMAT_MESSAGE_FROM_HMODULE,
  50       ntdll,
  51       nt_status,
  52       MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
  53       reinterpret_cast<wchar_t*>(&msg_template),
  54       0,
  55       NULL);
  56
  57   if (!count)
  58     return;
  59   count += p1.size() + p2.size() + 1;
  60   base::string16 message;
  61   ::wsprintf(WriteInto(&message, count), msg_template, p1.c_str(), p2.c_str());
  62   // The MB_SERVICE_NOTIFICATION causes this message to be displayed by
  63   // csrss. This means that we are not creating windows or pumping WM messages
  64   // in this process.
  65   ::MessageBox(NULL, message.c_str(),
  66                L"chrome.exe",
  67                MB_OK | MB_SERVICE_NOTIFICATION);
  68   ::LocalFree(msg_template);
  69 }
  70
  71 void ModuleNotFoundHardError(const EXCEPTION_RECORD* ex_record) {
  72   DelayLoadInfo* dli = reinterpret_cast<DelayLoadInfo*>(
  73       ex_record->ExceptionInformation[0]);
  74   if (!dli->szDll)
  75     return;
  76   RaiseHardErrorMsg(NT_STATUS_DLL_NOT_FOUND, dli->szDll, std::string());
  77 }
  78
  79 void EntryPointNotFoundHardError(const EXCEPTION_RECORD* ex_record) {
  80   DelayLoadInfo* dli = reinterpret_cast<DelayLoadInfo*>(
  81       ex_record->ExceptionInformation[0]);
  82   if (!dli->dlp.fImportByName)
  83     return;
  84   if (!dli->dlp.szProcName)
  85     return;
  86   if (!dli->szDll)
  87     return;
  88   RaiseHardErrorMsg(NT_STATUS_ENTRYPOINT_NOT_FOUND,
  89       dli->dlp.szProcName, dli->szDll);
  90 }
  91
  92 }  // namespace
  93
  94 bool HardErrorHandler(EXCEPTION_POINTERS* ex_info) {
  95   if (!ex_info)
  96     return false;
  97   if (!ex_info->ExceptionRecord)
  98     return false;
  99
 100   long exception = ex_info->ExceptionRecord->ExceptionCode;
 101   if (exception == kExceptionModuleNotFound) {
 102     ModuleNotFoundHardError(ex_info->ExceptionRecord);
 103     return true;
 104   } else if (exception == kExceptionEntryPtNotFound) {
 105     EntryPointNotFoundHardError(ex_info->ExceptionRecord);
 106     return true;
 107   } else if (FacilityFromException(exception) == FACILITY_GRAPHICS_KERNEL) {
 108 #if defined(USE_AURA)
 109     RaiseHardErrorMsg(exception, std::string(), std::string());
 110     return true;
 111 #else
 112     return false;
 113 #endif
 114   }
 115   return false;
 116 }
 117
 118 }  // namespace breakpad