Hello, is there any problem with the configuration file of this code?

[Cyberbolt]

Unable to redirect Tun traffic to port socks5://127.0.0.1:12345

import os.log
import NetworkExtension

import Tun2SocksKit

class PacketTunnelProvider: NEPacketTunnelProvider {

  override func startTunnel(options: [String : NSObject]?, completionHandler: @escaping (Error?) -> Void) {
    os_log("%{public}@", log: log, type: .error, "调用 startTunnel")

    // 配置虚拟接口
    let settings = NEPacketTunnelNetworkSettings(tunnelRemoteAddress: "192.0.2.2")
    settings.mtu = NSNumber(value: 1500)

    let ipv4Settings = NEIPv4Settings(addresses: ["192.0.2.1"], subnetMasks: ["255.255.255.0"])
    ipv4Settings.includedRoutes = [NEIPv4Route.default()]
    settings.ipv4Settings = ipv4Settings

      // 启动Tun2Socks
    let socks5Config = """
      tunnel:
        mtu: 1500

      socks5:
        port: 12345
        address: 127.0.0.1
        udp: 'udp'

      misc:
        task-stack-size: 20480
        connect-timeout: 5000
        read-write-timeout: 60000
        log-file: stderr
        log-level: debug
        limit-nofile: 65535
      """
    Socks5Tunnel.run(withConfig: socks5Config) { code in
        if code == 0 {
            print("Tun2Socks started successfully")
        } else {
            print("Tun2Socks failed to start, error code: \(code)")
        }
    }

    self.setTunnelNetworkSettings(settings) { error in
        if let error = error {
            completionHandler(error)
            return
        }

        completionHandler(nil)
    }
  }

    override func stopTunnel(with reason: NEProviderStopReason, completionHandler: @escaping () -> Void) {
        completionHandler()
    }
}

How should I change the code? Thanks!

[Cyberbolt]

Could you please provide a sample code for iOS to call NetworkExtension to capture Tun traffic and transfer it to socks5://127.0.0.1:12345 through Tun2SocksKit? Thank you very much for your patient guidance!

[EbrahimTahernejad]

Either switch to the latest version or write the config to a file and provide the path...

You've already opened another issue regarding this and I told you what to do...

[Cyberbolt]

It is the latest version, but it seems that the traffic is not successfully redirected to socks5://127.0.0.1:12345. What is the problem with the code?

[EbrahimTahernejad]

IF IT WAS THE LATEST VERSION YOUR CODE WOULD THROW A COMPILE ERROR.

You're obviously not using the latest version.

The version you're using only accepts config file path as input write the string into a config.yml and pass the path to the library

[Cyberbolt]

Alright, thank you very much. On February 21st, I cloned the repository in advance during your update process, resulting in the source code not being the final version.

[Cyberbolt]

@EbrahimTahernejad Hello, I used the latest version of Tun2SocksKit and it ran successfully, but the traffic was not directed to socks5://127.0.0.1:12345. Could you please take a look at what is wrong with my code?

import os.log
import NetworkExtension

import Tun2SocksKit

class PacketTunnelProvider: NEPacketTunnelProvider {

  override func startTunnel(options: [String : NSObject]?, completionHandler: @escaping (Error?) -> Void) {
    os_log("%{public}@", log: log, type: .error, "调用 startTunnel")

    // 配置虚拟接口
    let settings = NEPacketTunnelNetworkSettings(tunnelRemoteAddress: "192.0.2.2")
    settings.mtu = NSNumber(value: 1500)

    let ipv4Settings = NEIPv4Settings(addresses: ["192.0.2.1"], subnetMasks: ["255.255.255.0"])
    ipv4Settings.includedRoutes = [NEIPv4Route.default()]
    settings.ipv4Settings = ipv4Settings

      // 启动Tun2Socks
    let socks5Config = """
      tunnel:
        mtu: 1500

      socks5:
        port: 12345
        address: 127.0.0.1
        udp: 'udp'

      misc:
        task-stack-size: 20480
        connect-timeout: 5000
        read-write-timeout: 60000
        log-file: stderr
        log-level: debug
        limit-nofile: 65535
      """
    Socks5Tunnel.run(withConfig: .string(content: socks5Config)) { code in
        if code == 0 {
            print("Tun2Socks started successfully")
        } else {
            print("Tun2Socks failed to start, error code: \(code)")
        }
    }

    self.setTunnelNetworkSettings(settings) { error in
        if let error = error {
            completionHandler(error)
            return
        }

        completionHandler(nil)
    }
  }

    override func stopTunnel(with reason: NEProviderStopReason, completionHandler: @escaping () -> Void) {
        completionHandler()
    }
}

[Cyberbolt]

I took a look and there should be a tun_fd parameter. How do I pass it in?

[EbrahimTahernejad]

tun_fd capturing is handled automatically inside Tun2SocksKit, you don't need to pass anything related to it

[EbrahimTahernejad]

Use it like this:

import os.log
import NetworkExtension

import Tun2SocksKit

class PacketTunnelProvider: NEPacketTunnelProvider {

  func getNetworkSettings(with mtu: Int, ipv6: Bool = true) -> NEPacketTunnelNetworkSettings {
    let settings = NEPacketTunnelNetworkSettings(tunnelRemoteAddress: "254.1.1.1")
    settings.mtu = NSNumber(integerLiteral: mtu)
    settings.ipv4Settings = {
        let settings = NEIPv4Settings(addresses: ["198.18.0.1"], subnetMasks: ["255.255.0.0"])
        settings.includedRoutes = [NEIPv4Route.default()]
        return settings
    }()
    settings.ipv6Settings = { [ipv6] () in
        guard ipv6 else {
            return nil
        }
        let settings = NEIPv6Settings(addresses: ["fd6e:a81b:704f:1211::1"], networkPrefixLengths: [64])
        settings.includedRoutes = [NEIPv6Route.default()]
        return settings
    }()
    settings.dnsSettings = NEDNSSettings(servers: ["1.1.1.1", "8.8.8.8"])
    return 
  }

  override func startTunnel(options: [String : NSObject]?, completionHandler: @escaping (Error?) -> Void) {
    os_log("%{public}@", log: log, type: .error, "调用 startTunnel")

      // 启动Tun2Socks
    let socks5Config = """
    tunnel:
      mtu: 1500

    socks5:
      port: 12345
      address: 127.0.0.1
      udp: 'udp'

    misc:
      task-stack-size: 20480
      connect-timeout: 5000
      read-write-timeout: 60000
      log-file: stderr
      log-level: debug
      limit-nofile: 65535
    """

    self.setTunnelNetworkSettings(getNetworkSettings(mtu: 1500, ipv6: false)) { [socks5Config] error in
        if let error = error {
            completionHandler(error)
            return
        }

        Socks5Tunnel.run(withConfig: .string(content: socks5Config)) { code in
            if code == 0 {
                print("Tun2Socks started successfully")
            } else {
                print("Tun2Socks failed to start, error code: \(code)")
            }
        }

        completionHandler(nil)
    }
  }

    override func stopTunnel(with reason: NEProviderStopReason, completionHandler: @escaping () -> Void) {
        completionHandler()
    }
}

[Cyberbolt]

Thank you very much, I have successfully run