@ohos.net.vpnExtension (VPN 增强管理)

三方VPN管理模块，支持三方VPN的启动和停止功能。

说明： 本模块首批接口从 API version 11 开始支持。后续版本的新增接口，采用上角标单独标记接口的起始版本。

导入模块

import vpnExt from "@ohos.net.vpnExtension";

vpnExt.startVpnExtensionAbility

startVpnExtensionAbility(want: Want): Promise<void>

启动新的三方vpn功能。

系统能力：SystemCapability.Ability.AbilityRuntime.Core

模型约束：此接口仅可在Stage模型下使用。

参数：

返回值：

错误码：

示例： Stage 模型示例：

import common from '@ohos.app.ability.common';
import Want from '@ohos.app.ability.Want';
import vpnExt from '@ohos.net.vpnExtension';

let context = getContext(this) as common.VpnExtensionContext;
let want: Want = {
  deviceId: "",
  bundleName: "com.example.myvpndemo",
  abilityName: "MyVpnExtAbility",
};

@Entry
@Component
struct Index {
  @State message: string = 'Hello World'

  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold).onClick(() => {
          console.info("btn click") })
        Button('Start Extension').onClick(() => {
          vpnExt.startVpnExtensionAbility(want);
        }).width('70%').fontSize(45).margin(16)
        }.width('100%')
    }.height('100%')
  }
}

vpnExt.stopVpnExtensionAbility

stopVpnExtensionAbility(want: Want): Promise<void>

停止同一应用程序中的服务。

系统能力：SystemCapability.Ability.AbilityRuntime.Core

模型约束：此接口仅可在Stage模型下使用。

参数：

返回值：

错误码：

示例： Stage 模型示例：

import common from '@ohos.app.ability.common';
import Want from '@ohos.app.ability.Want';
import vpnExt from '@ohos.net.vpnExtension';

let context = getContext(this) as common.VpnExtensionContext;
let want: Want = {
  deviceId: "",
  bundleName: "com.example.myvpndemo",
  abilityName: "MyVpnExtAbility",
};

@Entry
@Component
struct Index {
  @State message: string = 'Hello World'

  build() {
    Row() {
      Column() {
        Text(this.message)
          .fontSize(50)
          .fontWeight(FontWeight.Bold).onClick(() => {
          console.info("btn click") })
        Button('Start Extension').onClick(() => {
          vpnExt.startVpnExtensionAbility(want);
        }).width('70%').fontSize(45).margin(16)
        Button('Stop Extension').onClick(() => {
          console.info("btn end")
          vpnExt.stopVpnExtensionAbility(want);
        }).width('70%').fontSize(45).margin(16)

        }.width('100%')
    }.height('100%')
  }
}

vpnExt.createVpnConnection

createVpnConnection(context: VpnExtensionContext): VpnConnection

创建一个 三方VPN 连接对象。

系统能力：SystemCapability.Communication.NetManager.Vpn

模型约束：此接口仅可在Stage模型下使用。

参数：

返回值：

错误码：

示例： Stage 模型示例：

import vpnExt from '@ohos.net.vpnExtension';
import common from '@ohos.app.ability.common';
import Want from '@ohos.app.ability.Want';
import VpnExtensionAbility from '@ohos.app.ability.VpnExtensionAbility';

let context: vpnExt.VpnExtensionContext;
export default class MyVpnExtAbility extends VpnExtensionAbility {
  onCreate(want: Want) {
    let VpnConnection : vpnExt.VpnConnection = vpnExt.createVpnConnection(context);
    console.info("vpn createVpnConnection: " + JSON.stringify(VpnConnection));
  }
}

VpnConnection

VPN 连接对象。在调用 VpnConnection 的方法前，需要先通过vpnExt.createVpnConnection创建 VPN 连接对象。

create

create(config: VpnConfig): Promise<number>

使用 config 创建一个 vpn 网络，使用 Promise 方式作为异步方法。

系统能力：SystemCapability.Communication.NetManager.Vpn

参数：

返回值：

错误码：

示例：

import vpnExt from '@ohos.net.vpnExtension';
import Want from '@ohos.app.ability.Want';
import common from '@ohos.app.ability.common';
import VpnExtensionAbility from '@ohos.app.ability.VpnExtensionAbility';
import hilog from '@ohos.hilog';

let context: vpnExt.VpnExtensionContext;
export default class MyVpnExtAbility extends VpnExtensionAbility {
  private tunIp: string = '10.0.0.5';
  private blockedAppName: string = 'com.example.myvpndemo';
  onCreate(want: Want) {
    let VpnConnection : vpnExt.VpnConnection = vpnExt.createVpnConnection(context);
    console.info("vpn createVpnConnection: " + JSON.stringify(VpnConnection));
    this.SetupVpn();
  }
  SetupVpn() {
        class Address {
            address: string;
            family: number;

            constructor(address: string, family: number) {
                this.address = address;
                this.family = family;
            }
        }

        class AddressWithPrefix {
            address: Address;
            prefixLength: number;

            constructor(address: Address, prefixLength: number) {
                this.address = address;
                this.prefixLength = prefixLength;
            }
        }

        class Config {
            addresses: AddressWithPrefix[];
            mtu: number;
            dnsAddresses: string[];
            trustedApplications: string[];
            blockedApplications: string[];

            constructor(
                tunIp: string,
                blockedAppName: string
            ) {
                this.addresses = [
                    new AddressWithPrefix(new Address(tunIp, 1), 24)
                ];
                this.mtu = 1400;
                this.dnsAddresses = ["114.114.114.114"];
                this.trustedApplications = [];
                this.blockedApplications = [blockedAppName];
            }
        }

        let config = new Config(this.tunIp, this.blockedAppName);

        try {
            let VpnConnection : vpnExt.VpnConnection = vpnExt.createVpnConnection(context);
            VpnConnection.create(config).then((data) => {
                hilog.error(0x0000, 'developTag', 'tunfd: %{public}s', JSON.stringify(data) ?? '');
            })
        } catch (error) {
            hilog.error(0x0000, 'developTag', 'vpn setUp fail: %{public}s', JSON.stringify(error) ?? '');
        }
    }
}

protect

protect(socketFd: number): Promise<void>

保护套接字不受 VPN 连接影响，通过该套接字发送的数据将直接基于物理网络收发，因此其流量不会通过 VPN 转发, 使用 Promise 方式作为异步方法。

系统能力：SystemCapability.Communication.NetManager.Vpn

参数：

返回值：

错误码：

示例：

import vpnExt from '@ohos.net.vpnExtension';
import Want from '@ohos.app.ability.Want';
import VpnExtensionAbility from '@ohos.app.ability.VpnExtensionAbility';
import hilog from '@ohos.hilog';

let g_tunnelFd = -1;
let context: vpnExt.VpnExtensionContext;
export default class MyVpnExtAbility extends VpnExtensionAbility {
  private vpnServerIp: string = '192.168.31.13';
  onCreate(want: Want) {
    let VpnConnection : vpnExt.VpnConnection = vpnExt.createVpnConnection(context);
    console.info("vpn createVpnConnection: " + JSON.stringify(VpnConnection));
    this.CreateTunnel();
    this.Protect();
  }
  CreateTunnel() {
      g_tunnelFd = 8888;
  }
  Protect() {
        hilog.info(0x0000, 'developTag', '%{public}s', 'vpn Protect');
        let VpnConnection : vpnExt.VpnConnection = vpnExt.createVpnConnection(context);
        VpnConnection.protect(g_tunnelFd).then(() => {
            hilog.info(0x0000, 'developTag', '%{public}s', 'vpn Protect Success');
        }).catch((err : Error) => {
            hilog.error(0x0000, 'developTag', 'vpn Protect Failed %{public}s', JSON.stringify(err) ?? '');
        })
  }
}

destroy

destroy(): Promise<void>

销毁启动的 VPN 网络，使用 Promise 方式作为异步方法。

系统能力：SystemCapability.Communication.NetManager.Vpn

返回值：

错误码：

示例：

import vpnExt from '@ohos.net.vpnExtension';
import common from '@ohos.app.ability.common';
import Want from '@ohos.app.ability.Want';
import VpnExtensionAbility from '@ohos.app.ability.VpnExtensionAbility';
import { BusinessError } from '@kit.BasicServicesKit';

let context: vpnExt.VpnExtensionContext;
export default class MyVpnExtAbility extends VpnExtensionAbility {
  onCreate(want: Want) {
    let VpnConnection : vpnExt.VpnConnection = vpnExt.createVpnConnection(context);
    console.info("vpn createVpnConnection: " + JSON.stringify(VpnConnection));
    VpnConnection.destroy().then(() => {
      console.info("destroy success.");
    }).catch((error : BusinessError) => {
      console.error("destroy fail" + JSON.stringify(error));
    });
  }
}

VpnConfig

三方VPN配置参数。

系统能力：SystemCapability.Communication.NetManager.Vpn