added network prefix

1 files changed, 71 insertions, 0 deletions

diff --git a/networkPrefix.cpp b/networkPrefix.cpp
new file mode 100644
index 0000000..b373eec
--- /dev/null
+++ b/networkPrefix.cpp
@@ -0,0 +1,71 @@
+/*
+ *  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 "networkPrefix.h"
+
+void NetworkPrefix::setNetworkPrefixLength(uint8_t length )
+{
+	length_ = length;
+	if (network_address_type_==ipv4)
+	{ 
+		in_addr v4addr;
+		v4addr.s_addr=0xFFFFFFFF;
+		*this &= (NetworkAddress(v4addr)<<length);
+	} else if (network_address_type_==ipv6) {
+		in6_addr v6addr;
+		for(int i=0;i<4;i++)
+			ipv6_address_.s6_addr32[i]=0xFFFFFFFF;
+		*this &= (NetworkAddress(v6addr)<<length);
+	} else if (network_address_type_==ethernet) {
+		//TODO
+	} else {
+		//TODO
+	}
+}
+
+uint8_t NetworkPrefix::getNetworkPrefixLength()
+{
+	return length_;
+}
+
+
+bool NetworkPrefix::operator<(const NetworkPrefix &right) const
+{
+	if (network_address_type_!=right.network_address_type_)
+		return false;
+	if (NetworkAddress::operator<(static_cast<NetworkAddress>(right)))
+		return true;
+	static_cast<NetworkAddress>(right)<static_cast<NetworkAddress>(*this);
+	return (right.length_<length_);
+}
+