beginnings of static routing

src/routing/static-router.cc

@@ -0,0 +1,38 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "ns3/debug.h"
+#include "static-router.h"
+
+NS_DEBUG_COMPONENT_DEFINE ("StaticRouter");
+
+namespace ns3 {
+
+const InterfaceId StaticRouter::iid = 
+  MakeInterfaceId ("StaticRouter", Object::iid);
+
+StaticRouter::StaticRouter ()
+{
+  SetInterfaceId (StaticRouter::iid);
+  NS_DEBUG("StaticRouter::StaticRouter ()");
+}
+
+StaticRouter::~StaticRouter ()
+{
+  NS_DEBUG("StaticRouter::~StaticRouter ()");
+}
+
+} // namespace ns3

src/routing/static-router.h

@@ -0,0 +1,85 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef STATIC_ROUTER_H
+#define STATIC_ROUTER_H
+
+#include <stdint.h>
+#include "ns3/object.h"
+#include "ns3/ptr.h"
+#include "ns3/ipv4-address.h"
+
+namespace ns3 {
+
+//  
+// Roughly equivalent to a static incarnation of the OSPF link state header
+// combined with a single Router-LSA Link Record.  Since it's static, there's
+// no need for age or sequence number.
+//
+
+class StaticRouterLinkRecord
+{
+public:
+  IpV4Address   m_originator;           // Router ID of this router
+
+  enum LinkType {
+    PointToPoint = 1,
+    TransitNetwork,
+    StubNetwork,
+    VirtualLink
+  };
+
+  LinkType      m_linkType;             // What kind of link this is
+
+  Ipv4Address   m_linkId;               // Neighbor's router ID
+
+  union {
+    uint32_t    m_interfaceIndex;       // For unnumbered links
+    uint32_t    m_networkMask;          // For Stub Network (self)
+  } u;
+
+  uint32_t      m_metric;               // Abstract cost of sending packets
+};
+
+//  
+// An interface aggregated to a node that provides static routing information
+// to a global route manager.  The presence of the interface indicates that
+// the node is a router.  The interface is the mechanism by which the router
+// advertises its connections to neighboring routers.  We're basically 
+// allowing the route manager to query for link state advertisements.
+//
+
+class StaticRouter : public Object
+{
+public:
+  static const InterfaceId iid;
+  StaticRouter ();
+
+  void SetRouterId (IpV4Address routerId);
+
+  uint32_t GetNumLinkRecords (void);
+  bool GetLinkRecord (uint32_t n, StaticRouterLinkRecord &lsa);
+
+protected:
+  virtual ~StaticRouter ();
+
+  IpV4Address   m_routerId;             // Router ID of this router
+
+private:
+};
+
+} // namespace ns3
+
+#endif /* STATIC_ROUTER_H */