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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef SANDBOX_SRC_SYNC_POLICY_H__
+#define SANDBOX_SRC_SYNC_POLICY_H__
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "sandbox/src/crosscall_server.h"
+#include "sandbox/src/nt_internals.h"
+#include "sandbox/src/policy_low_level.h"
+#include "sandbox/src/sandbox_policy.h"
+
+namespace sandbox {
+
+enum EvalResult;
+
+// This class centralizes most of the knowledge related to sync policy
+class SyncPolicy {
+ public:
+  // Creates the required low-level policy rules to evaluate a high-level
+  // policy rule for sync calls, in particular open or create actions.
+  // name is the sync object name, semantics is the desired semantics for the
+  // open or create and policy is the policy generator to which the rules are
+  // going to be added.
+  static bool GenerateRules(const wchar_t* name,
+                            TargetPolicy::Semantics semantics,
+                            LowLevelPolicy* policy);
+
+  // Performs the desired policy action on a request.
+  // client_info is the target process that is making the request and
+  // eval_result is the desired policy action to accomplish.
+  static DWORD CreateEventAction(EvalResult eval_result,
+                                 const ClientInfo& client_info,
+                                 const std::wstring &event_name,
+                                 uint32 manual_reset,
+                                 uint32 initial_state,
+                                 HANDLE *handle);
+  static DWORD OpenEventAction(EvalResult eval_result,
+                               const ClientInfo& client_info,
+                               const std::wstring &event_name,
+                               uint32 desired_access,
+                               uint32 inherit_handle,
+                               HANDLE *handle);
+};
+
+}  // namespace sandbox
+
+#endif  // SANDBOX_SRC_SYNC_POLICY_H__