added options for window size, cypher, auth algo

added seqWindow class
replaced some pointers with references

1 files changed, 64 insertions, 0 deletions

diff --git a/seqWindow.h b/seqWindow.h
new file mode 100644
index 0000000..9fb88dd
--- /dev/null
+++ b/seqWindow.h
@@ -0,0 +1,64 @@
+/*
+ *  anytun
+ *
+ *  The secure anycast tunneling protocol (satp) defines a protocol used
+ *  for communication between any combination of unicast and anycast
+ *  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
+ *  intended to deliver a generic, scaleable and secure solution for
+ *  tunneling and relaying of packets of any protocol.
+ *
+ *
+ *  Copyright (C) 2007 anytun.org <satp@wirdorange.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
+ *
+ *  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 (see the file COPYING included with this
+ *  distribution); if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _SEQ_WINDOW_H_
+#define _SEQ_WINDOW_H_
+
+#include <map>
+#include <queue>
+
+#include "threadUtils.hpp"
+#include "datatypes.h"
+
+class SeqWindow
+{
+public:
+  typedef std::queue<seq_nr_t> SeqQueue;
+  typedef std::map<sender_id_t, SeqQueue> SenderMap;
+
+  SeqWindow(window_size_t w);
+  ~SeqWindow();
+
+  SeqQueue::size_type getLength(sender_id_t sender);
+  bool hasSeqNr(sender_id_t sender, seq_nr_t seq);
+  void addSeqNr(sender_id_t sender, seq_nr_t seq);
+  void clear(sender_id_t sender);
+  void clear();
+
+private:
+  SeqWindow(const SeqWindow &s);
+  void operator=(const SeqWindow &s);
+
+  window_size_t window_size_;
+  Mutex mutex_;
+  SenderMap sender;
+};
+
+#endif