1 files changed, 86 insertions, 0 deletions
diff --git a/sandbox/src/sync_dispatcher.cc b/sandbox/src/sync_dispatcher.cc
new file mode 100644
index 0000000..025fd96
--- /dev/null
+++ b/sandbox/src/sync_dispatcher.cc
@@ -0,0 +1,86 @@
+// Copyright (c) 2006-2010 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.
+
+#include "sandbox/src/sync_dispatcher.h"
+
+#include "sandbox/src/crosscall_client.h"
+#include "sandbox/src/interception.h"
+#include "sandbox/src/interceptors.h"
+#include "sandbox/src/ipc_tags.h"
+#include "sandbox/src/policy_broker.h"
+#include "sandbox/src/policy_params.h"
+#include "sandbox/src/sandbox.h"
+#include "sandbox/src/sync_interception.h"
+#include "sandbox/src/sync_policy.h"
+
+namespace sandbox {
+
+SyncDispatcher::SyncDispatcher(PolicyBase* policy_base)
+    : policy_base_(policy_base) {
+  static const IPCCall create_params = {
+    {IPC_CREATEEVENT_TAG, WCHAR_TYPE, ULONG_TYPE, ULONG_TYPE},
+    reinterpret_cast<CallbackGeneric>(&SyncDispatcher::CreateEvent)
+  };
+
+  static const IPCCall open_params = {
+    {IPC_OPENEVENT_TAG, WCHAR_TYPE, ULONG_TYPE, ULONG_TYPE},
+    reinterpret_cast<CallbackGeneric>(&SyncDispatcher::OpenEvent)
+  };
+
+  ipc_calls_.push_back(create_params);
+  ipc_calls_.push_back(open_params);
+}
+
+bool SyncDispatcher::SetupService(InterceptionManager* manager,
+                                  int service) {
+  if (IPC_CREATEEVENT_TAG == service)
+      return INTERCEPT_EAT(manager, L"kernel32.dll", CreateEventW,
+                           CREATE_EVENT_ID, 20);
+
+  if (IPC_OPENEVENT_TAG == service)
+    return INTERCEPT_EAT(manager, L"kernel32.dll", OpenEventW,
+                         OPEN_EVENT_ID, 16);
+
+  return false;
+}
+
+bool SyncDispatcher::CreateEvent(IPCInfo* ipc, std::wstring* name,
+                                 DWORD manual_reset, DWORD initial_state) {
+  const wchar_t* event_name = name->c_str();
+  CountedParameterSet<NameBased> params;
+  params[NameBased::NAME] = ParamPickerMake(event_name);
+
+  EvalResult result = policy_base_->EvalPolicy(IPC_CREATEEVENT_TAG,
+                                               params.GetBase());
+  HANDLE handle = NULL;
+  DWORD ret = SyncPolicy::CreateEventAction(result, *ipc->client_info, *name,
+                                            manual_reset, initial_state,
+                                            &handle);
+  // Return operation status on the IPC.
+  ipc->return_info.win32_result = ret;
+  ipc->return_info.handle = handle;
+  return true;
+}
+
+bool SyncDispatcher::OpenEvent(IPCInfo* ipc, std::wstring* name,
+                               DWORD desired_access, DWORD inherit_handle) {
+  const wchar_t* event_name = name->c_str();
+
+  CountedParameterSet<OpenEventParams> params;
+  params[OpenEventParams::NAME] = ParamPickerMake(event_name);
+  params[OpenEventParams::ACCESS] = ParamPickerMake(desired_access);
+
+  EvalResult result = policy_base_->EvalPolicy(IPC_OPENEVENT_TAG,
+                                               params.GetBase());
+  HANDLE handle = NULL;
+  DWORD ret = SyncPolicy::OpenEventAction(result, *ipc->client_info, *name,
+                                          desired_access, inherit_handle,
+                                          &handle);
+  // Return operation status on the IPC.
+  ipc->return_info.win32_result = ret;
+  ipc->return_info.handle = handle;
+  return true;
+}
+
+}  // namespace sandbox