From 0fbddcb83a4a3f79da8ba01d593f4064f0ce26ac Mon Sep 17 00:00:00 2001
From: Othmar Gsenger <otti@anytun.org>
Date: Wed, 27 Feb 2008 21:25:34 +0000
Subject: added mux support and routing table

---
 anytun.cpp         |  7 ++++---
 networkAddress.cpp |  2 ++
 networkPrefix.cpp  |  4 ++++
 networkPrefix.h    |  1 +
 routingTable.cpp   | 34 ++++++++++++++++++++++++----------
 routingTable.h     |  1 +
 6 files changed, 36 insertions(+), 13 deletions(-)

diff --git a/anytun.cpp b/anytun.cpp
index a408019..023160d 100644
--- a/anytun.cpp
+++ b/anytun.cpp
@@ -94,8 +94,9 @@ void createConnection(const std::string & remote_host, u_int16_t remote_port, Co
   kd->init(Buffer(key, sizeof(key)), Buffer(salt, sizeof(salt)));
   cLog.msg(Log::PRIO_NOTICE) << "added connection remote host " << remote_host << ":" << remote_port;
 	ConnectionParam connparam ( (*kd),  (*seq), seq_nr_, remote_host,  remote_port);
- 	cl.addConnection(connparam,0);
-  SyncCommand sc (cl,0);
+ 	cl.addConnection(connparam,gOpt.getMux());
+	gRoutingTable.addRoute(NetworkPrefix(NetworkAddress()),gOpt.getMux());
+  SyncCommand sc (cl,gOpt.getMux());
 	queue.push(sc);
 }
 
@@ -154,7 +155,7 @@ void* sender(void* p)
     if(param->cl.empty())
       continue;
 
-		gRoutingTable.getRoute(NetworkAddress());
+		mux = gRoutingTable.getRoute(NetworkAddress());
     ConnectionMap::iterator cit = param->cl.getConnection(mux);
 		if(cit==param->cl.getEnd())
 			continue;
diff --git a/networkAddress.cpp b/networkAddress.cpp
index 3db7238..d87f5ba 100644
--- a/networkAddress.cpp
+++ b/networkAddress.cpp
@@ -36,6 +36,8 @@
 
 NetworkAddress::NetworkAddress()
 {
+	network_address_type_=ipv4;
+	ipv4_address_.s_addr=0;
 }
 
 NetworkAddress::NetworkAddress(const NetworkAddress & ref) : mutex_(),ipv4_address_(ref.ipv4_address_),ipv6_address_(ref.ipv6_address_),ethernet_address_(ref.ethernet_address_),network_address_type_(ref.network_address_type_)
diff --git a/networkPrefix.cpp b/networkPrefix.cpp
index b373eec..5d7ac49 100644
--- a/networkPrefix.cpp
+++ b/networkPrefix.cpp
@@ -33,6 +33,10 @@
 
 #include "networkPrefix.h"
 
+NetworkPrefix::NetworkPrefix(const NetworkAddress & src): NetworkAddress(src),length_(0)
+{
+}
+
 void NetworkPrefix::setNetworkPrefixLength(uint8_t length )
 {
 	length_ = length;
diff --git a/networkPrefix.h b/networkPrefix.h
index 93ce386..e11f6e7 100644
--- a/networkPrefix.h
+++ b/networkPrefix.h
@@ -39,6 +39,7 @@
 class NetworkPrefix : public NetworkAddress
 {
 public:
+	NetworkPrefix(const NetworkAddress &);
 	void setNetworkPrefixLength(uint8_t length );
 	uint8_t getNetworkPrefixLength();
   bool operator<(const NetworkPrefix &s) const;
diff --git a/routingTable.cpp b/routingTable.cpp
index a6e0917..29302fb 100644
--- a/routingTable.cpp
+++ b/routingTable.cpp
@@ -27,7 +27,7 @@
  *  distribution); if not, write to the Free Software Foundation, Inc.,
  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
-
+#include "networkPrefix.h"
 #include "threadUtils.hpp"
 #include "datatypes.h"
 
@@ -56,22 +56,36 @@ RoutingTable::~RoutingTable()
 {
 } 
 
-void RoutingTable::addRoute(const NetworkPrefix & ,u_int16_t )
+void RoutingTable::addRoute(const NetworkPrefix & pref,u_int16_t mux )
 {
   Lock lock(mutex_);
+	
+	
+  std::pair<RoutingMap::iterator, bool> ret = routes_.insert(RoutingMap::value_type(pref,mux));
+  if(!ret.second)
+  {
+    routes_.erase(ret.first);
+    routes_.insert(RoutingMap::value_type(pref,mux));
+  }
+}
+
 
-//  std::pair<ConnectionMap::iterator, bool> ret = connections_.insert(ConnectionMap::value_type(mux, conn));
-//  if(!ret.second)
-//  {
-//    connections_.erase(ret.first);
-//    connections_.insert(ConnectionMap::value_type(mux, conn));
-//  }
+void RoutingTable::delRoute(const NetworkPrefix & pref )
+{
+  Lock lock(mutex_);
+	
+  routes_.erase(routes_.find(pref));	
 }
 
-u_int16_t  RoutingTable::getRoute(const NetworkAddress &)
+u_int16_t  RoutingTable::getRoute(const NetworkAddress & addr)
 {
 	Lock lock(mutex_);
-	RoutingMap::iterator it = routes_.begin();
+	NetworkPrefix prefix(addr);
+	prefix.setNetworkPrefixLength(32);
+	RoutingMap::iterator it = routes_.lower_bound(prefix);
+	it--;
+	if (it!=routes_.end())
+		return it->second;
 	return 0;
 }
 
diff --git a/routingTable.h b/routingTable.h
index b406b65..f4f89c3 100644
--- a/routingTable.h
+++ b/routingTable.h
@@ -48,6 +48,7 @@ public:
 	RoutingTable();
 	~RoutingTable();
 	void addRoute(const NetworkPrefix & ,u_int16_t);
+	void delRoute(const NetworkPrefix & );
 	u_int16_t getRoute(const NetworkAddress &);
 	bool empty();
 	void clear();
-- 
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