refactor almost complete

netcon/NetconService.hpp

@@ -0,0 +1,146 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015  ZeroTier, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#include <sys/poll.h>
+#include <string>
+
+#include "../osdep/Phy.hpp"
+#include "NetconEthernetTap.hpp"
+
+#include "Intercept.h"
+#include "LWIPStack.hpp"
+
+#ifndef _NETCON_SERVICE_HPP
+#define _NETCON_SERVICE_HPP
+
+using namespace std;
+
+namespace ZeroTier {
+
+  class NetconEthernetTap;
+
+  // Helper class for passing reference to Phy to LWIP callbacks
+  class Larg
+  {
+  public:
+    NetconEthernetTap *tap;
+    PhySocket *sock;
+    Larg(NetconEthernetTap *_tap, PhySocket *_sock) : tap(_tap), sock(_sock) {}
+  };
+
+  enum NetconConnectionType { RPC, BUFFER };
+
+  // prototypes
+  class NetconClient;
+  class NetconConnection;
+
+  //
+  class NetconConnection
+  {
+  public:
+    int their_fd;
+    unsigned char buf[DEFAULT_READ_BUFFER_SIZE];
+    int idx;
+    NetconConnectionType type;
+    struct tcp_pcb *pcb;
+    PhySocket *sock;
+    NetconClient *owner;
+
+    NetconConnection(NetconConnectionType type, PhySocket *sock) : type(type), sock(sock) {}
+  };
+
+  //
+  class NetconClient
+  {
+  public:
+    vector<NetconConnection*> connections;
+
+    int tid;
+    bool waiting_for_retval;
+    NetconConnection *rpc;
+    NetconConnection* unmapped_conn;
+
+    NetconConnection *addConnection(NetconConnectionType type, PhySocket *sock)
+    {
+      NetconConnection *new_conn = new NetconConnection(type, sock);
+      new_conn->owner = this;
+      return new_conn;
+    }
+
+    // Check data and RPC connections
+    NetconConnection *getConnection(PhySocket *sock)
+    {
+      if(sock && sock == rpc->sock) {
+        return rpc;
+      }
+      for(size_t i=0; i<connections.size(); i++) {
+        if(sock == connections[i]->sock) { return connections[i];}
+      }
+      return NULL;
+    }
+
+    //
+    NetconConnection *getConnectionByTheirFD(int fd)
+    {
+      for(size_t i=0; i<connections.size(); i++) {
+        if(connections[i]->their_fd == fd) { return connections[i]; }
+      }
+      return NULL;
+    }
+
+    //
+    NetconConnection *getConnectionByPCB(struct tcp_pcb *pcb)
+    {
+      for(size_t i=0; i<connections.size(); i++) {
+        if(connections[i]->pcb == pcb) { return connections[i]; }
+      }
+      return NULL;
+    }
+
+    NetconConnection *containsPCB(struct tcp_pcb *pcb)
+    {
+      for(size_t i=0; i<connections.size(); i++) {
+        if(connections[i]->pcb == pcb) { return connections[i]; }
+      }
+      return NULL;
+    }
+
+    void closeConnection(NetconConnection *c)
+    {
+      // close all connections
+      // -- pcb
+      // -- PhySocket
+    }
+
+    void closeClient()
+    {
+
+    }
+  };
+} // namespace ZeroTier
+
+#endif