New upstream version 0.3.6

[anytun.git] / src / packetSource.h

diff --git a/src/packetSource.h b/src/packetSource.h
index 1957eb8..a6656e3 100644 (file)
--- a/src/packetSource.h
+++ b/src/packetSource.h
@@ -6,19 +6,20 @@
  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
  *  ethernet, ip, arp ...). satp directly includes cryptography and
- *  message authentication based on the methodes used by SRTP.  It is
+ *  message authentication based on the methods used by SRTP.  It is
  *  intended to deliver a generic, scaleable and secure solution for
  *  tunneling and relaying of packets of any protocol.
  *
  *
- *  Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl, 
+ *  Copyright (C) 2007-2014 Markus Grüneis, Othmar Gsenger, Erwin Nindl,
  *                          Christian Pointner <satp@wirdorange.org>
  *
  *  This file is part of Anytun.
  *
  *  Anytun is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 3 as
- *  published by the Free Software Foundation.
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  any later version.
  *
  *  Anytun is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -26,27 +27,44 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with anytun.  If not, see <http://www.gnu.org/licenses/>.
+ *  along with Anytun.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  In addition, as a special exception, the copyright holders give
+ *  permission to link the code of portions of this program with the
+ *  OpenSSL library under certain conditions as described in each
+ *  individual source file, and distribute linked combinations
+ *  including the two.
+ *  You must obey the GNU General Public License in all respects
+ *  for all of the code used other than OpenSSL.  If you modify
+ *  file(s) with this exception, you may extend this exception to your
+ *  version of the file(s), but you are not obligated to do so.  If you
+ *  do not wish to do so, delete this exception statement from your
+ *  version.  If you delete this exception statement from all source
+ *  files in the program, then also delete it here.
  */
 
-#ifndef _PACKET_SOURCE_H_
-#define _PACKET_SOURCE_H_
+#ifndef ANYTUN_packetSource_h_INCLUDED
+#define ANYTUN_packetSource_h_INCLUDED
 
 #include <boost/asio.hpp>
+#include <boost/thread.hpp>
+#include <list>
+#include <queue>
 
 #include "datatypes.h"
 #include "threadUtils.hpp"
 
 // TODO: fix this when other packetSource types are introduced
 typedef boost::asio::ip::udp::endpoint PacketSourceEndpoint;
+typedef boost::asio::ip::udp::resolver::iterator PacketSourceResolverIt;
 
 class PacketSource
 {
 public:
   virtual ~PacketSource() {}
 
-  virtual u_int32_t recv(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint& remote) = 0;
-  virtual void send(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint remote) = 0;
+  virtual uint32_t recv(uint8_t* buf, uint32_t len, PacketSourceEndpoint& remote) = 0;
+  virtual void send(uint8_t* buf, uint32_t len, PacketSourceEndpoint remote) = 0;
 
   void waitUntilReady();
 
@@ -55,22 +73,39 @@ protected:
 };
 
 class UDPPacketSource : public PacketSource
-{  
+{
 public:
   typedef boost::asio::ip::udp proto;
 
   UDPPacketSource(std::string localaddr, std::string port);
+  ~UDPPacketSource();
 
-  u_int32_t recv(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint& remote);
-  void send(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint remote);
+  uint32_t recv(uint8_t* buf, uint32_t len, PacketSourceEndpoint& remote);
+  void send(uint8_t* buf, uint32_t len, PacketSourceEndpoint remote);
 
-  void onResolve(const boost::asio::ip::udp::endpoint& e);
+  void onResolve(PacketSourceResolverIt it);
   void onError(const std::runtime_error& e);
 
 private:
-
   boost::asio::io_service io_service_;
-  proto::socket sock_;
+
+  typedef struct {
+    uint8_t* buf_;
+    uint32_t len_;
+    proto::socket* sock_;
+    Semaphore* sem_;
+  } SocketsElement;
+  std::list<SocketsElement> sockets_;
+
+  void recv_thread(std::list<SocketsElement>::iterator it);
+  typedef struct {
+    uint32_t len_;
+    PacketSourceEndpoint remote_;
+    std::list<SocketsElement>::iterator it_;
+  } ThreadResult;
+  std::queue<ThreadResult> thread_result_queue_;
+  Mutex thread_result_mutex_;
+  Semaphore thread_result_sem_;
 };
 
 #endif