openflow build environment setup

openflow/include/click/iptable.hh

@@ -0,0 +1,38 @@
+// -*- c-basic-offset: 2; related-file-name: "../../lib/iptable.cc" -*-
+#ifndef CLICK_IPTABLE_HH
+#define CLICK_IPTABLE_HH
+#include <click/glue.hh>
+#include <click/vector.hh>
+#include <click/ipaddress.hh>
+CLICK_DECLS
+
+// IP routing table.
+// Lookup by longest prefix.
+// Each entry contains a gateway and an output index.
+
+class IPTable { public:
+
+  IPTable();
+  ~IPTable();
+
+  bool lookup(IPAddress dst, IPAddress &gw, int &index) const;
+
+  void add(IPAddress dst, IPAddress mask, IPAddress gw, int index);
+  void del(IPAddress dst, IPAddress mask);
+  void clear()				{ _v.clear(); }
+
+ private:
+
+  struct Entry {
+    IPAddress dst;
+    IPAddress mask;
+    IPAddress gw;
+    int index;
+    bool valid() const			{ return mask || !dst; }
+  };
+  Vector<Entry> _v;
+
+};
+
+CLICK_ENDDECLS
+#endif