content_decryption_module_ext.h

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// Copyright 2017 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 CDM_CONTENT_DECRYPTION_MODULE_EXT_H_

#define CDM_CONTENT_DECRYPTION_MODULE_EXT_H_

#if defined(_WIN32)

#include <windows.h>

#endif

#include "content_decryption_module_export.h"

#if defined(_MSC_VER)

typedef unsigned int uint32_t;

#else

#include <stdint.h>

#endif

namespace cdm {

#if defined(_WIN32)

typedef wchar_t FilePathCharType;

typedef HANDLE PlatformFile;

const PlatformFile kInvalidPlatformFile = INVALID_HANDLE_VALUE;

#else

typedef char FilePathCharType;

typedef int PlatformFile;

const PlatformFile kInvalidPlatformFile = -1;

#endif  // defined(_WIN32)

struct HostFile {

  HostFile(const FilePathCharType* file_path,

           PlatformFile file,

           PlatformFile sig_file)

      : file_path(file_path), file(file), sig_file(sig_file) {}

  // File that is part of the host of the CDM.

  const FilePathCharType* file_path = nullptr;

  PlatformFile file = kInvalidPlatformFile;

  // Signature file for |file|.

  PlatformFile sig_file = kInvalidPlatformFile;

};

}  // namespace cdm

extern "C" {

// Functions in this file are dynamically retrieved by their versioned function

// names. Increment the version number for any backward incompatible API

// changes.

// Verifies CDM host. All files in |host_files| are opened in read-only mode.

//

// Returns false and closes all files if there is an immediate failure.

// Otherwise returns true as soon as possible and processes the files

// asynchronously. All files MUST be closed by the CDM after this one-time

// processing is finished.

CDM_API bool VerifyCdmHost_0(const cdm::HostFile* host_files,

                             uint32_t num_files);

#endif  // CDM_CONTENT_DECRYPTION_MODULE_EXT_H_