unity and native osx bundles and frameworks build from the same project now
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Joseph Henry
282
integrations/Unity3D/Assets/ZeroTier.cs
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282
integrations/Unity3D/Assets/ZeroTier.cs
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/*
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* ZeroTier One - Network Virtualization Everywhere
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* Copyright (C) 2011-2015 ZeroTier, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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using UnityEngine;
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using UnityEngine.UI;
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using System;
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using System.Collections;
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using System.Runtime.InteropServices;
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using System.Threading;
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using UnityEngine.Networking;
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using System.Net.Sockets;
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using System.Net;
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using System.IO;
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public class ZeroTierNetworkInterface {
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// ZeroTier background thread
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private Thread ztThread;
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// Interop structures
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[System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential, CharSet=System.Runtime.InteropServices.CharSet.Ansi)]
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public struct sockaddr {
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/// u_short->unsigned short
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public ushort sa_family;
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/// char[14]
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[System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst=14)]
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public string sa_data;
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}
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// Virtual network interace config
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private int MaxPacketSize;
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private string rpc_path = "/does/this/work";
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[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
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public delegate void MyDelegate(string str);
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static void CallBackFunction(string str) {
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Debug.Log("Native ZT Plugin: " + str);
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}
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// ZeroTier service / debug initialization
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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public static extern void SetDebugFunction( IntPtr fp );
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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private static extern int unity_start_service(string path);
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// Connection calls
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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private static extern int zt_socket(int family, int type, int protocol);
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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unsafe private static extern int zt_bind(int sockfd, System.IntPtr addr, int addrlen);
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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unsafe private static extern int zt_connect(int sockfd, System.IntPtr addr, int addrlen);
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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private static extern int zt_accept(int sockfd);
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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private static extern int zt_listen(int sockfd, int backlog);
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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private static extern int zt_close(int sockfd);
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// RX / TX
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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unsafe private static extern int zt_recv(int sockfd, System.IntPtr buf, int len);
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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unsafe private static extern int zt_send(int sockfd, System.IntPtr buf, int len);
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// ZT Thread controls
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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private static extern bool zt_is_running();
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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private static extern void zt_terminate();
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// ZT Network controls
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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private static extern bool zt_join_network(string nwid);
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[DllImport ("ZeroTierSDK_Unity3D_OSX")]
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private static extern void zt_leave_network(string nwid);
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// Thread which starts the ZeroTier service
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// The ZeroTier service may spin off a SOCKS5 proxy server
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// if -DUSE_SOCKS_PROXY is set when building the bundle
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private void zt_service_thread()
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{
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MyDelegate callback_delegate = new MyDelegate( CallBackFunction );
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// Convert callback_delegate into a function pointer that can be
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// used in unmanaged code.
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IntPtr intptr_delegate =
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Marshal.GetFunctionPointerForDelegate(callback_delegate);
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// Call the API passing along the function pointer.
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SetDebugFunction( intptr_delegate );
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unity_start_service (rpc_path);
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}
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// Start the ZeroTier service
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private void Init()
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{
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// TODO: Handle exceptions from unmanaged code
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ztThread = new Thread(() => {
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try {
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zt_service_thread();
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} catch(Exception e) {
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Debug.Log(e.Message.ToString());
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}
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});
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ztThread.IsBackground = true; // Allow the thread to be aborted safely
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ztThread.Start();
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}
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// Initialize the ZeroTier service with a given path
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public ZeroTierNetworkInterface(string path)
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{
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rpc_path = path;
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Init();
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}
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// Initialize the ZeroTier service
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public ZeroTierNetworkInterface()
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{
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Init();
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}
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// Initialize the ZeroTier service
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// Use the GlobalConfig to set things like the max packet size
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public ZeroTierNetworkInterface(GlobalConfig gConfig)
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{
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MaxPacketSize = gConfig.MaxPacketSize; // TODO: Do something with this!
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Init();
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}
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// Joins a ZeroTier virtual network
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public void JoinNetwork(string nwid)
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{
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zt_join_network(nwid);
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}
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// Leaves a ZeroTier virtual network
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public void LeaveNetwork(string nwid)
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{
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zt_leave_network(nwid);
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}
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// Creates a ZeroTier Socket and binds on the port provided
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// A client instance can now connect to this "host"
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public int AddHost(int port)
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{
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int sockfd = zt_socket ((int)AddressFamily.InterNetwork, (int)SocketType.Stream, (int)ProtocolType.Unspecified);
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if (sockfd < 0) {
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return -1;
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}
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GCHandle sockaddr_ptr = ZeroTierUtils.Generate_unmananged_sockaddr("0.0.0.0" + ":" + port);
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IntPtr pSockAddr = sockaddr_ptr.AddrOfPinnedObject ();
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int addrlen = Marshal.SizeOf (pSockAddr);
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return zt_bind (sockfd, pSockAddr, addrlen);
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}
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// hostId - host socket ID for this connection
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public int Connect(int hostId, string address, int port, out byte error)
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{
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int sockfd = zt_socket ((int)AddressFamily.InterNetwork, (int)SocketType.Stream, (int)ProtocolType.Unspecified);
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Debug.Log ("sockfd = " + sockfd);
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if (sockfd < 0) {
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error = (byte)sockfd;
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return -1;
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}
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GCHandle sockaddr_ptr = ZeroTierUtils.Generate_unmananged_sockaddr(address + ":" + port);
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IntPtr pSockAddr = sockaddr_ptr.AddrOfPinnedObject ();
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int addrlen = Marshal.SizeOf (pSockAddr);
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error = (byte)zt_connect (sockfd, pSockAddr, addrlen);
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return sockfd;
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}
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// Returns whether the ZeroTier service is currently running
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public bool IsRunning()
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{
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return zt_is_running ();
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}
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// Terminates the ZeroTier service
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public void Terminate()
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{
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zt_terminate ();
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}
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// Shutdown a given connection
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public int Disconnect(int fd)
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{
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return zt_close (fd);
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}
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// Sends data out over the network
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public int Send(int fd, char[] buf, int len, out byte error)
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{
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int bytes_written = 0;
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error = 0;
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GCHandle buf_handle = GCHandle.Alloc (buf, GCHandleType.Pinned);
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IntPtr pBufPtr = buf_handle.AddrOfPinnedObject ();
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//int len = Marshal.SizeOf (pBufPtr);
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if((bytes_written = zt_send (fd, pBufPtr, len)) < 0) {
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error = (byte)bytes_written;
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}
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return bytes_written;
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}
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// Structure used to house arrays meant to be sent to unmanaged memory and passed to the
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// ZeroTier service
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public struct UnityArrayInput
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{
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public IntPtr array;
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}
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/*
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// Sends data out over the network
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public int Send(int fd, char[] buf, int len, out byte error)
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{
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//char[] buffer = new char[1024];
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UnityArrayInput data = new UnityArrayInput ();
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data.array = Marshal.AllocHGlobal (Marshal.SizeOf (typeof(char))*buf.Length);
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//data.len = buf.Length;
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int bytes_written = 0;
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error = 0;
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try
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{
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Marshal.Copy(buf, 0, data.array, buf.Length);
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Debug.Log(buf.Length);
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// ZT API call
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if((bytes_written = zt_send (fd, data.array, buf.Length)) < 0) {
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error = (byte)bytes_written;
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}
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return bytes_written;
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}
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finally
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{
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Marshal.FreeHGlobal (data.array);
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}
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return 0;
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}
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*/
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// Checks for data to RX
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public int OnReceive(int fd, byte[] buf, int len)
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{
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return 0;
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//return zt_read(fd, buf, len);
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}
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}
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