Add a sandbox API for broker handle duplication

sandbox/src/handle_policy.h

+// Copyright (c) 2012 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.
+
+#ifndef SANDBOX_SRC_HANDLE_POLICY_H__
+#define SANDBOX_SRC_HANDLE_POLICY_H__
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "sandbox/src/crosscall_server.h"
+#include "sandbox/src/nt_internals.h"

[rvargas (doing something else), 2012/03/27 00:35:33]

remove

[jschuh, 2012/03/27 01:36:19]

Done.

+#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 handle policy

[rvargas (doing something else), 2012/03/27 00:35:33]

nit: Period at the end. 

[jschuh, 2012/03/27 01:36:19]

Done.

+class HandlePolicy {
+ public:
+  // Creates the required low-level policy rules to evaluate a high-level
+  // policy rule for handles, in particular open or create actions.

[rvargas (doing something else), 2012/03/27 00:35:33]

open and create?

[jschuh, 2012/03/27 01:36:19]

Done.

+  static bool GenerateRules(const wchar_t* name,

[rvargas (doing something else), 2012/03/27 00:35:33]

Somewhere there should be stated that this name is just the type, not the object
name.

[jschuh, 2012/03/27 01:36:19]

Changed the variable to type_name.

+                            TargetPolicy::Semantics semantics,
+                            LowLevelPolicy* policy);
+
+  // Processes a 'TargetPolicy::DuplicateHandle()' request from the target.
+  static DWORD DuplicateHandleProxyAction(EvalResult eval_result,
+                                          const ClientInfo& client_info,
+                                          HANDLE source_handle,
+                                          DWORD target_process_id,
+                                          HANDLE* target_handle,
+                                          DWORD desired_access,
+                                          BOOL inherit_handle,
+                                          DWORD options);
+};
+
+}  // namespace sandbox
+
+#endif  // SANDBOX_SRC_HANDLE_POLICY_H__
+