@ohos.net.vpn (VPN Management)

The vpn module implements virtual private network (VPN) management, such as starting and stopping a VPN.

NOTE The initial APIs of this module are supported since API version 10. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

import vpn from "@ohos.net.vpn";

vpn.createVpnConnection

createVpnConnection(context: AbilityContext): VpnConnection

Creates a VPN connection.

System API: This is a system API.

System capability: SystemCapability.Communication.NetManager.Vpn

Parameters

Return value

Error codes

For details about the error codes, see VPN Error Codes.

Example Stage model:

import vpn from '@ohos.net.vpn';
import common from '@ohos.app.ability.common';

@Entry
@Component
struct Index {
  private context = getContext(this) as common.UIAbilityContext;
  private VpnConnection: vpn.VpnConnection = vpn.createVpnConnection(this.context);
  functiontest()
  {
    console.info("vpn createVpnConnection: " + JSON.stringify(this.VpnConnection));
  }
  build() {  }
}

VpnConnection

Defines a VPN connection object. Before calling VpnConnection APIs, you need to create a VPN connection object by calling vpn.createVpnConnection.

setUp

setUp(config: VpnConfig, callback: AsyncCallback<number>): void

Creates a VPN based on the specified configuration. This API uses an asynchronous callback to return the result.

System API: This is a system API.

Required permissions: ohos.permission.MANAGE_VPN

System capability: SystemCapability.Communication.NetManager.Vpn

Parameters

Error codes

For details about the error codes, see VPN Error Codes.

Example

import vpn from '@ohos.net.vpn';
import common from '@ohos.app.ability.common';
import { BusinessError } from "@ohos.base";

@Entry
@Component
struct Index {
  private context = getContext(this) as common.UIAbilityContext;
  private VpnConnection: vpn.VpnConnection = vpn.createVpnConnection(this.context);
  SetUp(): void {
    let config: vpn.VpnConfig = {
      addresses: [{
        address: {
          address: "10.0.0.5",
          family: 1
        },
        prefixLength: 24
      }],
      mtu: 1400,
      dnsAddresses: ["114.114.114.114"]
    }
    this.VpnConnection.setUp(config, (error: BusinessError, data: number) => {
      console.info(JSON.stringify(error));
      console.info("tunfd: " + JSON.stringify(data));
    });
  }
  build() { }
}

setUp

setUp(config: VpnConfig): Promise<number>

Creates a VPN based on the specified configuration. This API uses a promise to return the result.

System API: This is a system API.

Required permissions: ohos.permission.MANAGE_VPN

System capability: SystemCapability.Communication.NetManager.Vpn

Parameters

Return value

Error codes

For details about the error codes, see VPN Error Codes.

Example

import vpn from '@ohos.net.vpn';
import common from '@ohos.app.ability.common';
import { BusinessError } from "@ohos.base";

@Entry
@Component
struct Index {
  private context = getContext(this) as common.UIAbilityContext;
  private VpnConnection: vpn.VpnConnection = vpn.createVpnConnection(this.context);
  SetUp(): void {
    let config: vpn.VpnConfig = {
      addresses: [{
        address: {
          address: "10.0.0.5",
          family: 1
        },
        prefixLength: 24
      }],
      mtu: 1400,
      dnsAddresses: ["114.114.114.114"]
    }
    this.VpnConnection.setUp(config).then((data: number) => {
      console.info("setUp success, tunfd: " + JSON.stringify(data));
    }).catch((err: BusinessError) => {
      console.info("setUp fail" + JSON.stringify(err));
    });
  }
  build() { }
}

protect

protect(socketFd: number, callback: AsyncCallback<void>): void

Protects sockets against a VPN connection. The data sent through sockets is directly transmitted over the physical network and therefore the traffic does not traverse through the VPN. This API uses an asynchronous callback to return the result.

System API: This is a system API.

Required permissions: ohos.permission.MANAGE_VPN

System capability: SystemCapability.Communication.NetManager.Vpn

Parameters

Error codes

For details about the error codes, see VPN Error Codes.

Example

import socket from "@ohos.net.socket";
import vpn from '@ohos.net.vpn';
import common from '@ohos.app.ability.common';
import { BusinessError } from "@ohos.base";

@Entry
@Component
struct Index {
  private context = getContext(this) as common.UIAbilityContext;
  private VpnConnection: vpn.VpnConnection = vpn.createVpnConnection(this.context);

  Protect(): void {
    let tcp: socket.TCPSocket = socket.constructTCPSocketInstance();
    let ipAddress: socket.NetAddress = {
      address: "0.0.0.0"
    }
    tcp.bind(ipAddress);
    let addressConnect: socket.TCPConnectOptions = {
      address: {
        address: "192.168.1.11",
        port: 8888
      },
      timeout: 6000
    }
    tcp.connect(addressConnect);
    tcp.getSocketFd().then((tunnelfd: number) => {
      console.info("tunenlfd: " + tunnelfd);
      this.VpnConnection.protect(tunnelfd, (error: BusinessError) => {
        console.info(JSON.stringify(error));
      });
    });
  }
  build() { }
}

protect

protect(socketFd: number): Promise<void>

Protects sockets against a VPN connection. The data sent through sockets is directly transmitted over the physical network and therefore the traffic does not traverse through the VPN. This API uses a promise to return the result.

System API: This is a system API.

Required permissions: ohos.permission.MANAGE_VPN

System capability: SystemCapability.Communication.NetManager.Vpn

Parameters

Return value

Error codes

For details about the error codes, see VPN Error Codes.

Example

import socket from "@ohos.net.socket";
import vpn from '@ohos.net.vpn';
import common from '@ohos.app.ability.common';
import { BusinessError } from "@ohos.base";

@Entry
@Component
struct Index {
  private context = getContext(this) as common.UIAbilityContext;
  private VpnConnection: vpn.VpnConnection = vpn.createVpnConnection(this.context);

  Protect(): void {
    let tcp: socket.TCPSocket = socket.constructTCPSocketInstance();
    let ipAddress: socket.NetAddress = {
      address: "0.0.0.0"
    }
    tcp.bind(ipAddress);
    let addressConnect: socket.TCPConnectOptions = {
      address: {
        address: "192.168.1.11",
        port: 8888
      },
      timeout: 6000
    }
    tcp.connect(addressConnect);
    tcp.getSocketFd().then((tunnelfd: number) => {
      console.info("tunenlfd: " + tunnelfd);
      this.VpnConnection.protect(tunnelfd).then(() => {
        console.info("protect success.");
      }).catch((err: BusinessError) => {
        console.info("protect fail" + JSON.stringify(err));
      });
    });
  }
  build() { }
}

destroy

destroy(callback: AsyncCallback<void>): void

Destroys a VPN. This API uses an asynchronous callback to return the result.

System API: This is a system API.

Required permissions: ohos.permission.MANAGE_VPN

System capability: SystemCapability.Communication.NetManager.Vpn

Parameters

Error codes

For details about the error codes, see VPN Error Codes.

Example

import vpn from '@ohos.net.vpn';
import common from '@ohos.app.ability.common';
import { BusinessError } from "@ohos.base";

@Entry
@Component
struct Index {
  private context = getContext(this) as common.UIAbilityContext;
  private VpnConnection: vpn.VpnConnection = vpn.createVpnConnection(this.context);
  Destroy(): void {
    this.VpnConnection.destroy((error: BusinessError) => {
      console.info(JSON.stringify(error));
    });
  }
  build() { }
}

destroy

destroy(): Promise<void>

Destroys a VPN. This API uses a promise to return the result.

System API: This is a system API.

Required permissions: ohos.permission.MANAGE_VPN

System capability: SystemCapability.Communication.NetManager.Vpn

Return value

Error codes

For details about the error codes, see VPN Error Codes.

Example

import vpn from '@ohos.net.vpn';
import common from '@ohos.app.ability.common';
import { BusinessError } from "@ohos.base";

@Entry
@Component
struct Index {
  private context = getContext(this) as common.UIAbilityContext;
  private VpnConnection: vpn.VpnConnection = vpn.createVpnConnection(this.context);
  Destroy(): void {
    this.VpnConnection.destroy().then(() => {
      console.info("destroy success.");
    }).catch((err: BusinessError) => {
      console.info("destroy fail" + JSON.stringify(err));
    });
  }
  build() { }
}

VpnConfig

Defines the VPN configuration.

System API: This is a system API.

System capability: SystemCapability.Communication.NetManager.Vpn

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