Method forwardedTcpip

lib/protocol/Protocol.js:1550–1586

(chan, initWindow, maxPacket, cfg)

  }
  // 'ssh-connection' service-specific
  forwardedTcpip(chan, initWindow, maxPacket, cfg) {
    if (!this._server)
      throw new Error('Server-only method called in client mode');

    const boundAddrLen = Buffer.byteLength(cfg.boundAddr);
    const remoteAddrLen = Buffer.byteLength(cfg.remoteAddr);
    let p = this._packetRW.write.allocStart;
    const packet = this._packetRW.write.alloc(
      1 + 4 + 15 + 4 + 4 + 4 + 4 + boundAddrLen + 4 + 4 + remoteAddrLen + 4
    );

    packet[p] = MESSAGE.CHANNEL_OPEN;

    writeUInt32BE(packet, 15, ++p);
    packet.utf8Write('forwarded-tcpip', p += 4, 15);

    writeUInt32BE(packet, chan, p += 15);

    writeUInt32BE(packet, initWindow, p += 4);

    writeUInt32BE(packet, maxPacket, p += 4);

    writeUInt32BE(packet, boundAddrLen, p += 4);
    packet.utf8Write(cfg.boundAddr, p += 4, boundAddrLen);

    writeUInt32BE(packet, cfg.boundPort, p += boundAddrLen);

    writeUInt32BE(packet, remoteAddrLen, p += 4);
    packet.utf8Write(cfg.remoteAddr, p += 4, remoteAddrLen);

    writeUInt32BE(packet, cfg.remotePort, p += remoteAddrLen);

    this._debug && this._debug(
      `Outbound: Sending CHANNEL_OPEN (r:${chan}, forwarded-tcpip)`
    );
    sendPacket(this, this._packetRW.write.finalize(packet));
  }
  x11(chan, initWindow, maxPacket, cfg) {
    if (!this._server)
      throw new Error('Server-only method called in client mode');