/*
 * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import type { AsyncCallback } from './basic';

/**
 * @namespace dlpPermission
 * @syscap SystemCapability.Security.DlpPermissionService
 * @since 9
 */
declare namespace dlpPermission {
  /**
   * Enumerates for DLP file action types.
   *
   * @enum { number } ActionFlags
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 10
   */
  export enum ActionFlags {
    ACTION_INVALID = 0X00000000,
    /**
     * Indicates the view action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_VIEW = 0x00000001,

    /**
     * Indicates the save action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_SAVE = 0x00000002,

    /**
     * Indicates the save as action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_SAVE_AS = 0x00000004,

    /**
     * Indicates the edit action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_EDIT = 0x00000008,

    /**
     * Indicates the screen capture action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_SCREEN_CAPTURE = 0x00000010,

    /**
     * Indicates the screen share action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_SCREEN_SHARE = 0x00000020,

    /**
     * Indicates the screen record action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_SCREEN_RECORD = 0x00000040,

    /**
     * Indicates the copy action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_COPY = 0x00000080,

    /**
     * Indicates the print action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_PRINT = 0x00000100,

    /**
     * Indicates the export action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_EXPORT = 0x00000200,

    /**
     * Indicates the permission change action to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    ACTION_PERMISSION_CHANGE = 0x00000400
  }

  export enum AuthPermType {
    /**
     * Read only access to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    READ_ONLY = 1,

    /**
     * Content edit access to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    CONTENT_EDIT = 2,

    /**
     * Full control access to DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    FULL_CONTROL = 3,

    /**
     * default permission used for initializing.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    DEFAULT_PERM = 4,
  }

  /**
   * Describes the network registration state.
   *
   * @interface DLPPermissionInfo
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 10
   */
  export interface DLPPermissionInfo {
    /**
     * Indicates the permission type of DLP file.
     *
     * @type { AuthPermType }
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    access: AuthPermType;

    /**
     * Indicates the permitted action type of DLP file.
     *
     * @type { ActionFlags }
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 10
     */
    flags: ActionFlags;
  }


  /**
   * Query access to DLP file from dlp permission service.
   *
   * @returns { Promise<DLPPermissionInfo> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return The access to a DLP file.
   */
  function queryFileAccess(): Promise<DLPPermissionInfo>;

  /**
   * Query access to DLP file from dlp permission service.
   *
   * @param { AsyncCallback<DLPPermissionInfo> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return The access to a DLP file.
   */
  function queryFileAccess(callback: AsyncCallback<DLPPermissionInfo>): void;

  /**
   * Whether current application is in DLP sandbox.
   *
   * @returns { Promise<boolean> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return whether or not.
   */
  function isInSandbox(): Promise<boolean>;

  /**
   * Whether current application is in DLP sandbox.
   *
   * @param { AsyncCallback<boolean> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return whether or not.
   */
  function isInSandbox(callback: AsyncCallback<boolean>): void;

  /**
   * Get current system sandbox policy.
   *
   * @returns { Promise<boolean> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return whether or not.
   */
  function getDlpGatheringPolicy(): Promise<boolean>;

  /**
   * Get current system sandbox policy.
   *
   * @param { AsyncCallback<boolean> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return whether or not.
   */
  function getDlpGatheringPolicy(callback: AsyncCallback<boolean>): void;

  /**
   * Set Document Retention Status by dorUri.
   *
   * @param { Array<string> } docUris
   * @param { AsyncCallback<boolean> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return whether or not.
   */
  function setRetentionState(docUris: Array<string>, callback: AsyncCallback<boolean>): void;

  /**
   *  Set Document Retention Status by dorUri.
   *
   * @param { Array<string> } docUris
   * @returns { Promise<boolean> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return whether or not.
   */
  function setRetentionState(docUris: Array<string>): Promise<boolean>;

  /**
   * Set Document Non-Retention Status by dorUri.
   *
   * @param { Array<string> } docUris
   * @param { AsyncCallback<boolean> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return whether or not.
   */
  function setNonRetentionState(docUris: Array<string>, callback: AsyncCallback<boolean>): void;

  /**
   *  Set Document Non-Retention Status by dorUri.
   *
   * @param { Array<string> } docUris
   * @returns { Promise<boolean> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return whether or not.
   */
  function setNonRetentionState(docUris: Array<string>): Promise<boolean>;

  export interface RetentionSandboxInfo {
    /**
     * appIndex
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    appIndex: number;

    /**
     * bundleName
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    bundleName: string;

    /**
     * Document uri list
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    docUris: Array<string>;
  }

  /**
   *  get Document uri list.
   *
   * @param { string } bundleName
   * @param { AsyncCallback<Array<RetentionSandboxInfo>> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return Document uri list.
   */
  function getRetentionSandboxList(bundleName: string, callback: AsyncCallback<Array<RetentionSandboxInfo>>): void;

  /**
   *  get Document uri list.
   *
   * @param { string } bundleName
   * @returns { Promise<Array<RetentionSandboxInfo>> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return Document uri list.
   */
  function getRetentionSandboxList(bundleName?: string): Promise<Array<RetentionSandboxInfo>>;

  /**
   * Get support DLP file type.
   *
   * @returns { Promise<Array<string>> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return The list of supported DLP file type.
   */
  function getDlpSupportFileType(): Promise<Array<string>>;

  /**
   * Get support DLP file type.
   *
   * @param { AsyncCallback<Array<string>> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @since 9
   * @return The list of supported DLP file type.
   */
  function getDlpSupportFileType(callback: AsyncCallback<Array<string>>): void;

  /**
   * Install an application in DLP sandbox.
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {string} bundleName Indicates the bundle name of the application.
   * @param {AuthPermType} access Indicates the access to DLP file.
   * @param {number} userId Indicates the user ID.
   * @param { string } uri
   * @returns { Promise<number> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return the appIndex installed application.
   */
  function installDlpSandbox(bundleName: string, access: AuthPermType, userId: number, uri: string): Promise<number>;

  /**
   * Install an application in DLP sandbox.
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {string} bundleName Indicates the bundle name of the application.
   * @param {AuthPermType} access Indicates the access to DLP file.
   * @param {number} userId Indicates the user ID.
   * @param { string } uri
   * @param { AsyncCallback<number> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return the appIndex installed application.
   */
  function installDlpSandbox(
    bundleName: string,
    access: AuthPermType,
    userId: number,
    uri: string,
    callback: AsyncCallback<number>
  ): void;

  /**
   * Uninstall an application in DLP sandbox.
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {string} bundleName Indicates the bundle name of the application.
   * @param {number} userId Indicates the user ID.
   * @param {number} appIndex Indicates the index of dlp sandbox.
   * @returns { Promise<void> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return -
   */
  function uninstallDlpSandbox(bundleName: string, userId: number, appIndex: number): Promise<void>;

  /**
   * Uninstall an application in DLP sandbox.
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {string} bundleName Indicates the bundle name of the application.
   * @param {number} userId Indicates the user ID.
   * @param {number} appIndex Indicates the index of dlp sandbox.
   * @param { AsyncCallback<void> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return -
   */
  function uninstallDlpSandbox(
    bundleName: string,
    userId: number,
    appIndex: number,
    callback: AsyncCallback<void>
  ): void;

  /**
   * register to the death of dlp permission service.
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {'serviceDie'} type Type of the death event of service.
   * @param { Callback<void> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return -
   */
  function on(type: 'serviceDie', callback: Callback<void>): void;

  /**
   * Listen the state of DLP sandbox.
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @typedef DlpSandboxStateParam
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   */
  export interface DlpSandboxStateParam {
    bundleName: string;
    userId: number;
    appIndex: number;
  }

  /**
   * Subscribe the event reported when dlp sandbox uninstall.
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {'uninstallDlpSandbox'} type Type of the uninstall sandbox event.
   * @param {Callback<DlpSandboxStateParam>} listener Indicates the listenner of dlp sandbox state.
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return -
   */
  function on(type: 'uninstallDlpSandbox', listener: Callback<DlpSandboxStateParam>): void;

  /**
   * Unsubscribe the event reported when dlp sandbox uninstall.
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {'uninstallDlpSandbox'} type Type of the uninstall sandbox event.
   * @param {Callback<DlpSandboxStateParam>} listener Indicates the listenner of dlp sandbox state.
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return -
   */
  function off(type: 'uninstallDlpSandbox', listener?: Callback<DlpSandboxStateParam>): boolean;

  export enum AccountType {
    /**
     * Cloud account type, type of the account for granting permissions to the DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    CLOUD_ACCOUNT = 1,

    /**
     * Domain account type, type of the account for granting permissions to the DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    DOMAIN_ACCOUNT = 2,

    /**
     * Application account type, type of the account for granting permissions to the DLP file.
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    APPLICATION_ACCOUNT = 3
  }

  export interface AuthUser {
    /**
     * Access authorized account
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    authAccount: string;

    /**
     * Access authorized type
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    authPerm: AuthPermType;

    /**
     * Permission expiry time
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    permExpiryTime: number;

    /**
     * Access authorized account type
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    authAccountType: AccountType;
  }

  export interface DlpProperty {
    /**
     * Dlp file owner account
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    ownerAccount: string;

    /**
     * Dlp file owner accountId
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    ownerAccountId: string;

    /**
     * Dlp file authorized user list
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    authUsers?: Array<AuthUser>;

    /**
     * Dlp file authorizer contact information
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    contractAccount: string;

    /**
     * Access authorized account type
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    ownerAccountType: AccountType;

    /**
     * Offline Access support
     * @since 9
     */
    offlineAccess: boolean;

    /**
     * Everyone Access support
     * @since 9
     */
    supportEveryone: boolean;

    /**
     * Everyone's Access permission
     * @since 9
     */
    everyonePerm: AuthPermType;
  }

  export interface DlpFile {
    /**
     * Dlp file property
     *
     * @syscap SystemCapability.Security.DlpPermissionService
     * @since 9
     */
    dlpProperty: DlpProperty;

    /**
     * add the link file of origin dlp file, the link file is implemented through the fuse file system.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {string} linkFileName Indicates the name of link file.
     * @returns { Promise<void> }
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    addDlpLinkFile(linkFileName: string): Promise<void>;

    /**
     * add the link file of origin dlp file, the link file is implemented through the fuse file system.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {string} linkFileName Indicates the name of link file.
     * @param { AsyncCallback<void> } callback
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    addDlpLinkFile(linkFileName: string, callback: AsyncCallback<void>): void;

    /**
     * stop the link file of origin dlp file, the link file is implemented through the fuse file system.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {string} linkFileName Indicates the name of link file.
     * @returns { Promise<void> }
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    stopDlpLinkFile(linkFileName: string): Promise<void>;

    /**
     * stop the link file of origin dlp file, the link file is implemented through the fuse file system.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {string} linkFileName Indicates the name of link file.
     * @param { AsyncCallback<void> } callback
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    stopDlpLinkFile(linkFileName: string, callback: AsyncCallback<void>): void;
    /**
     * stop the link file of origin dlp file, the link file is implemented through the fuse file system.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {string} linkFileName Indicates the name of link file.
     * @returns { Promise<void> }
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    restartDlpLinkFile(linkFileName: string): Promise<void>;

    /**
     * stop the link file of origin dlp file, the link file is implemented through the fuse file system.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {string} linkFileName Indicates the name of link file.
     * @param { AsyncCallback<void> } callback
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    restartDlpLinkFile(linkFileName: string, callback: AsyncCallback<void>): void;

    /**
     * stop the link file of origin dlp file, the link file is implemented through the fuse file system.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {string} linkFileName Indicates the name of link file.
     * @returns { Promise<void> }
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    replaceDlpLinkFile(linkFileName: string): Promise<void>;

    /**
     * stop the link file of origin dlp file, the link file is implemented through the fuse file system.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {string} linkFileName Indicates the name of link file.
     * @param { AsyncCallback<void> } callback
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    replaceDlpLinkFile(linkFileName: string, callback: AsyncCallback<void>): void;
    /**
     * delete the link file of origin dlp file, the link file is implemented through the fuse file system.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {string} linkFileName Indicates the name of link file.
     * @returns { Promise<void> }
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    deleteDlpLinkFile(linkFileName: string): Promise<void>;

    /**
     * delete the link file of origin dlp file, the link file is implemented through the fuse file system.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {string} linkFileName Indicates the name of link file.
     * @param { AsyncCallback<void> } callback
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    deleteDlpLinkFile(linkFileName: string, callback: AsyncCallback<void>): void;

    /**
     * recover the origin plain file from dlp file.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {number} plainFd Indicates the file descriptor of the origin plain file.
     * @returns { Promise<void> }
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    recoverDlpFile(plainFd: number): Promise<void>;

    /**
     * recover the origin plain file from dlp file.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param {number} plainFd Indicates the file descriptor of the origin plain file.
     * @param { AsyncCallback<void> } callback
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    recoverDlpFile(plainFd: number, callback: AsyncCallback<void>): void;

    /**
     * close the dlp file, when the object never be used.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @returns { Promise<void> }
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    closeDlpFile(): Promise<void>;

    /**
     * close the dlp file, when the object never be used.
     *
     * @permission ohos.permission.ACCESS_DLP_FILE
     * @param { AsyncCallback<void> } callback
     * @syscap SystemCapability.Security.DlpPermissionService
     * @systemapi Hide this for inner system use.
     * @since 9
     * @return -
     */
    closeDlpFile(callback: AsyncCallback<void>): void;
  }

  /**
   * generate the dlp file
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {number} plainTextFd  Indicates the file descriptor of the origin plain file.
   * @param {number} cipherTextFd  Indicates the file descriptor of the dlp file.
   * @param {DlpProperty} property Indicates the property of the dlp file.
   * @returns { Promise<DlpFile> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return dlpFile object
   */
  function generateDlpFile(plainTextFd: number, cipherTextFd: number, property: DlpProperty): Promise<DlpFile>;

  /**
   * generate the dlp file
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {number} plainTextFd  Indicates the file descriptor of the origin plain file.
   * @param {number} cipherTextFd Indicates the file descriptor of the dlp file.
   * @param {DlpProperty} property  Indicates the property of the dlp file.
   * @param { AsyncCallback<DlpFile> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return dlpFile object
   */
  function generateDlpFile(
    plainTextFd: number,
    cipherTextFd: number,
    property: DlpProperty,
    callback: AsyncCallback<DlpFile>
  ): void;

  /**
   * open the dlp file, and parse it.
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {number} cipherTextFd Indicates the file descriptor of the dlp file.
   * @returns { Promise<DlpFile> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return dlpFile object
   */
  function openDlpFile(cipherTextFd: number): Promise<DlpFile>;

  /**
   * open the dlp file, and parse it.
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {number} cipherTextFd Indicates the file descriptor of the dlp file.
   * @param { AsyncCallback<DlpFile> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return dlpFile object
   */
  function openDlpFile(cipherTextFd: number, callback: AsyncCallback<DlpFile>): void;

  /**
   * check whether is dlp file
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {number} cipherTextFd Indicates the file descriptor of the dlp file.
   * @returns { Promise<boolean> }
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return boolean
   */
  function isDlpFile(cipherTextFd: number): Promise<boolean>;

  /**
   * check whether is dlp file
   *
   * @permission ohos.permission.ACCESS_DLP_FILE
   * @param {number} cipherTextFd Indicates the file descriptor of the dlp file.
   * @param { AsyncCallback<boolean> } callback
   * @syscap SystemCapability.Security.DlpPermissionService
   * @systemapi Hide this for inner system use.
   * @since 9
   * @return boolean
   */
  function isDlpFile(cipherTextFd: number, callback: AsyncCallback<boolean>): void;
}
export default dlpPermission;