From fffd213c8cba2135afda493d797c41c10354770e Mon Sep 17 00:00:00 2001
From: Othmar Gsenger <otti@anytun.org>
Date: Sat, 12 Apr 2008 11:38:42 +0000
Subject: big svn cleanup

---
 src/seqWindow.cpp | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 src/seqWindow.cpp

(limited to 'src/seqWindow.cpp')

diff --git a/src/seqWindow.cpp b/src/seqWindow.cpp
new file mode 100644
index 0000000..cf4cf1c
--- /dev/null
+++ b/src/seqWindow.cpp
@@ -0,0 +1,93 @@
+/*
+ *  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
+ */
+
+#include "threadUtils.hpp"
+#include "datatypes.h"
+
+#include "seqWindow.h"
+
+SeqWindow::SeqWindow(window_size_t w) : window_size_(w)
+{
+}
+
+SeqWindow::~SeqWindow()
+{
+}
+
+SeqWindow::SeqDeque::size_type SeqWindow::getLength(sender_id_t sender)
+{
+  Lock lock(mutex_);
+  SenderMap::const_iterator s = sender_.find(sender);
+  if(s == sender_.end())
+    return 0;
+
+  return s->second.size();
+}
+
+bool SeqWindow::hasSeqNr(sender_id_t sender, seq_nr_t seq)
+{
+  Lock lock(mutex_);
+  if (!window_size_)
+    return false;
+  SenderMap::const_iterator s = sender_.find(sender);
+  if(s == sender_.end())
+    return false;
+
+  SeqDeque::const_iterator it;
+  for(it = s->second.begin(); it != s->second.end(); it++)
+    if(*it == seq)
+      return true;
+  
+  return false;
+}
+
+void SeqWindow::addSeqNr(sender_id_t sender, seq_nr_t seq)
+{
+  Lock lock(mutex_);
+  if (!window_size_)
+    return;
+  if(sender_[sender].size() >= window_size_)
+    sender_[sender].pop_front();
+  sender_[sender].push_back(seq);
+}
+
+void SeqWindow::clear(sender_id_t sender)
+{
+  Lock lock(mutex_);
+  sender_[sender].clear();
+  sender_.erase(sender);
+}
+
+void SeqWindow::clear()
+{
+  Lock lock(mutex_);
+  sender_.clear();
+}
+
-- 
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