sandbox/win/src/process_mitigations_win32k_dispatcher.cc

   1 // Copyright 2014 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 "sandbox/win/src/process_mitigations_win32k_dispatcher.h"
   6 #include "sandbox/win/src/interception.h"
   7 #include "sandbox/win/src/interceptors.h"
   8 #include "sandbox/win/src/ipc_tags.h"
   9 #include "sandbox/win/src/process_mitigations_win32k_interception.h"
  10
  11 namespace sandbox {
  12
  13 ProcessMitigationsWin32KDispatcher::ProcessMitigationsWin32KDispatcher(
  14     PolicyBase* policy_base)
  15     : policy_base_(policy_base) {
  16 }
  17
  18 bool ProcessMitigationsWin32KDispatcher::SetupService(
  19     InterceptionManager* manager, int service) {
  20   if (!(policy_base_->GetProcessMitigations() &
  21         sandbox::MITIGATION_WIN32K_DISABLE)) {
  22     return false;
  23   }
  24
  25   switch (service) {
  26     case IPC_GDI_GDIDLLINITIALIZE_TAG: {
  27       if (!INTERCEPT_EAT(manager, L"gdi32.dll", GdiDllInitialize,
  28                          GDIINITIALIZE_ID, 12)) {
  29         return false;
  30       }
  31       return true;
  32     }
  33
  34     case IPC_GDI_GETSTOCKOBJECT_TAG: {
  35       if (!INTERCEPT_EAT(manager, L"gdi32.dll", GetStockObject,
  36                          GETSTOCKOBJECT_ID, 8)) {
  37         return false;
  38       }
  39       return true;
  40     }
  41
  42     case IPC_USER_REGISTERCLASSW_TAG: {
  43       if (!INTERCEPT_EAT(manager, L"user32.dll", RegisterClassW,
  44                          REGISTERCLASSW_ID, 8)) {
  45         return false;
  46       }
  47       return true;
  48     }
  49
  50     default:
  51       break;
  52   }
  53   return false;
  54 }
  55
  56 }  // namespace sandbox
  57