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diff --git a/sandbox/src/filesystem_interception.h b/sandbox/src/filesystem_interception.h
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+++ b/sandbox/src/filesystem_interception.h
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+// Copyright (c) 2006-2008 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/nt_internals.h"
+#include "sandbox/src/sandbox_types.h"
+
+#ifndef SANDBOX_SRC_FILESYSTEM_INTERCEPTION_H__
+#define SANDBOX_SRC_FILESYSTEM_INTERCEPTION_H__
+
+namespace sandbox {
+
+extern "C" {
+
+// Interception of NtCreateFile on the child process.
+SANDBOX_INTERCEPT NTSTATUS WINAPI TargetNtCreateFile(
+    NtCreateFileFunction orig_CreateFile, PHANDLE file,
+    ACCESS_MASK desired_access, POBJECT_ATTRIBUTES object_attributes,
+    PIO_STATUS_BLOCK io_status, PLARGE_INTEGER allocation_size,
+    ULONG file_attributes, ULONG sharing, ULONG disposition, ULONG options,
+    PVOID ea_buffer, ULONG ea_length);
+
+// Interception of NtOpenFile on the child process.
+SANDBOX_INTERCEPT NTSTATUS WINAPI TargetNtOpenFile(
+    NtOpenFileFunction orig_OpenFile, PHANDLE file, ACCESS_MASK desired_access,
+    POBJECT_ATTRIBUTES object_attributes, PIO_STATUS_BLOCK io_status,
+    ULONG sharing, ULONG options);
+
+// Interception of NtQueryAtttributesFile on the child process.
+// It should never be called directly.
+SANDBOX_INTERCEPT NTSTATUS WINAPI TargetNtQueryAttributesFile(
+    NtQueryAttributesFileFunction orig_QueryAttributes,
+    POBJECT_ATTRIBUTES object_attributes,
+    PFILE_BASIC_INFORMATION file_attributes);
+
+// Interception of NtQueryFullAtttributesFile on the child process.
+// It should never be called directly.
+SANDBOX_INTERCEPT NTSTATUS WINAPI TargetNtQueryFullAttributesFile(
+    NtQueryFullAttributesFileFunction orig_QueryAttributes,
+    POBJECT_ATTRIBUTES object_attributes,
+    PFILE_NETWORK_OPEN_INFORMATION file_attributes);
+
+// Interception of NtSetInformationFile on the child process.
+SANDBOX_INTERCEPT NTSTATUS WINAPI TargetNtSetInformationFile(
+    NtSetInformationFileFunction orig_SetInformationFile, HANDLE file,
+    PIO_STATUS_BLOCK io_status, PVOID file_information, ULONG length,
+    FILE_INFORMATION_CLASS file_information_class);
+
+}  // extern "C"
+
+}  // namespace sandbox
+
+#endif  // SANDBOX_SRC_FILESYSTEM_INTERCEPTION_H__