Add sandbox support for Windows process mitigations

BUG=147752
Review URL: https://chromiumcodereview.appspot.com/10690058

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@156315 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 44 insertions, 0 deletions

diff --git a/sandbox/win/src/process_mitigations.h b/sandbox/win/src/process_mitigations.h
new file mode 100644
index 0000000..9039ad6
--- /dev/null
+++ b/sandbox/win/src/process_mitigations.h
@@ -0,0 +1,44 @@
+// 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_WIN_PROCESS_MITIGATIONS_H_
+#define SANDBOX_SRC_WIN_PROCESS_MITIGATIONS_H_
+
+#include <windows.h>
+
+#include "base/basictypes.h"
+#include "sandbox/win/src/security_level.h"
+
+namespace sandbox {
+
+// Sets the mitigation policy for the current process, ignoring any settings
+// that are invalid for the current version of Windows.
+bool ApplyProcessMitigationsToCurrentProcess(MitigationFlags flags);
+
+// Returns the flags that must be enforced after startup for the current OS
+// version.
+MitigationFlags FilterPostStartupProcessMitigations(MitigationFlags flags);
+
+// Converts sandbox flags to the PROC_THREAD_ATTRIBUTE_SECURITY_CAPABILITIES
+// policy flags used by UpdateProcThreadAttribute(). The size field varies
+// between a 32-bit and a 64-bit type based on the exact build and version of
+// Windows, so the returned size must be passed to UpdateProcThreadAttribute().
+void ConvertProcessMitigationsToPolicy(MitigationFlags flags,
+                                       DWORD64* policy_flags, size_t* size);
+
+// Adds mitigations that need to be performed on the suspended target process
+// before execution begins.
+bool ApplyProcessMitigationsToSuspendedProcess(HANDLE process,
+                                               MitigationFlags flags);
+
+// Returns true if all the supplied flags can be set after a process starts.
+bool CanSetProcessMitigationsPostStartup(MitigationFlags flags);
+
+// Returns true if all the supplied flags can be set before a process starts.
+bool CanSetProcessMitigationsPreStartup(MitigationFlags flags);
+
+}  // namespace sandbox
+
+#endif  // SANDBOX_SRC_WIN_PROCESS_MITIGATIONS_H_
+