--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-dpd.cc Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,50 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+
+#include "aodv-dpd.h"
+
+namespace ns3
+{
+namespace aodv
+{
+
+bool
+DuplicatePacketDetection::IsDuplicate (Ptr<const Packet> p, const Ipv4Header & header)
+{
+ return m_idCache.IsDuplicate (header.GetSource (), p->GetUid() );
+}
+void
+DuplicatePacketDetection::SetLifetime (Time lifetime)
+{
+ m_idCache.SetLifetime(lifetime);
+}
+
+Time
+DuplicatePacketDetection::GetLifetime () const
+{
+ return m_idCache.GetLifeTime();
+}
+
+
+}
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-dpd.h Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,62 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+
+#ifndef DUPLICATEPACKETDETECTION_H_
+#define DUPLICATEPACKETDETECTION_H_
+
+#include "aodv-id-cache.h"
+#include "ns3/nstime.h"
+#include "ns3/packet.h"
+#include "ns3/ipv4-header.h"
+
+namespace ns3
+{
+namespace aodv
+{
+/**
+ * \ingroup aodv
+ *
+ * \brief Helper class used to remember already seen packets and detect duplicates.
+ *
+ * Currently duplicate detection is based on uinique packet ID given by Packet::GetUid ()
+ * This approach is known to be weak and should be changed.
+ */
+class DuplicatePacketDetection
+{
+public:
+ /// C-tor
+ DuplicatePacketDetection (Time lifetime) : m_idCache(lifetime) {}
+ /// Check that the packet is duplicated. If not, save information about this packet.
+ bool IsDuplicate (Ptr<const Packet> p, const Ipv4Header & header);
+ /// Set duplicate records lifetimes
+ void SetLifetime (Time lifetime);
+ /// Get duplicate records lifetimes
+ Time GetLifetime () const;
+private:
+ /// Impl
+ IdCache m_idCache;
+};
+
+}
+}
+
+#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-id-cache.cc Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,131 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+#include "aodv-id-cache.h"
+#include "ns3/test.h"
+#include <algorithm>
+
+namespace ns3
+{
+namespace aodv
+{
+bool
+IdCache::IsDuplicate (Ipv4Address addr, uint32_t id)
+{
+ Purge ();
+ for (std::vector<UniqueId>::const_iterator i = m_idCache.begin ();
+ i != m_idCache.end (); ++i)
+ if (i->m_context == addr && i->m_id == id)
+ return true;
+ struct UniqueId uniqueId =
+ { addr, id, m_lifetime + Simulator::Now () };
+ m_idCache.push_back (uniqueId);
+ return false;
+}
+void
+IdCache::Purge ()
+{
+ m_idCache.erase (remove_if (m_idCache.begin (), m_idCache.end (),
+ IsExpired ()), m_idCache.end ());
+}
+
+uint32_t
+IdCache::GetSize ()
+{
+ Purge ();
+ return m_idCache.size ();
+}
+
+//-----------------------------------------------------------------------------
+// Tests
+//-----------------------------------------------------------------------------
+/// Unit test for id cache
+struct IdCacheTest : public TestCase
+{
+ IdCacheTest () : TestCase ("Id Cache"), cache (Seconds(10))
+ {}
+ virtual bool DoRun();
+ void CheckTimeout1 ();
+ void CheckTimeout2 ();
+ void CheckTimeout3 ();
+
+ IdCache cache;
+};
+
+bool
+IdCacheTest::DoRun ()
+{
+ NS_TEST_EXPECT_MSG_EQ (cache.GetLifeTime(), Seconds(10), "Lifetime");
+ NS_TEST_EXPECT_MSG_EQ (cache.IsDuplicate (Ipv4Address ("1.2.3.4"), 3), false, "Unknown ID & address");
+ NS_TEST_EXPECT_MSG_EQ (cache.IsDuplicate (Ipv4Address ("1.2.3.4"), 4), false, "Unknown ID");
+ NS_TEST_EXPECT_MSG_EQ (cache.IsDuplicate (Ipv4Address ("4.3.2.1"), 3), false, "Unknown address");
+ NS_TEST_EXPECT_MSG_EQ (cache.IsDuplicate (Ipv4Address ("1.2.3.4"), 3), true, "Known address & ID");
+ cache.SetLifetime(Seconds(15));
+ NS_TEST_EXPECT_MSG_EQ (cache.GetLifeTime(), Seconds(15), "New lifetime");
+ cache.IsDuplicate (Ipv4Address ("1.1.1.1"), 4);
+ cache.IsDuplicate (Ipv4Address ("1.1.1.1"), 4);
+ cache.IsDuplicate (Ipv4Address ("2.2.2.2"), 5);
+ cache.IsDuplicate (Ipv4Address ("3.3.3.3"), 6);
+ NS_TEST_EXPECT_MSG_EQ (cache.GetSize (), 6, "trivial");
+
+ Simulator::Schedule (Seconds(5), &IdCacheTest::CheckTimeout1, this);
+ Simulator::Schedule (Seconds(11), &IdCacheTest::CheckTimeout2, this);
+ Simulator::Schedule (Seconds(30), &IdCacheTest::CheckTimeout3, this);
+ Simulator::Run ();
+ Simulator::Destroy ();
+
+ return GetErrorStatus ();
+}
+
+void
+IdCacheTest::CheckTimeout1 ()
+{
+ NS_TEST_EXPECT_MSG_EQ (cache.GetSize (), 6, "Nothing expire");
+}
+
+void
+IdCacheTest::CheckTimeout2 ()
+{
+ NS_TEST_EXPECT_MSG_EQ (cache.GetSize (), 3, "3 records left");
+}
+
+void
+IdCacheTest::CheckTimeout3 ()
+{
+ NS_TEST_EXPECT_MSG_EQ (cache.GetSize (), 0, "All records expire");
+}
+//-----------------------------------------------------------------------------
+class IdCacheTestSuite : public TestSuite
+{
+public:
+ IdCacheTestSuite () : TestSuite ("routing-id-cache", UNIT)
+ {
+ AddTestCase (new IdCacheTest);
+ }
+} g_idCacheTestSuite;
+
+}}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-id-cache.h Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,86 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+
+#ifndef IDCACHE_H_
+#define IDCACHE_H_
+
+#include "ns3/ipv4-address.h"
+#include "ns3/simulator.h"
+#include <vector>
+
+namespace ns3
+{
+namespace aodv
+{
+/**
+ * \ingroup aodv
+ *
+ * \brief Unique packets identification cache used for simple duplicate detection.
+ */
+class IdCache
+{
+public:
+ /// c-tor
+ IdCache (Time lifetime): m_lifetime (lifetime) {}
+ /// Check that entry (addr, id) exists in cache. Add entry, if it doesn't exist.
+ bool IsDuplicate (Ipv4Address addr, uint32_t id);
+ /// Remove all expired entries
+ void Purge ();
+ /// Return number of entries in cache
+ uint32_t GetSize ();
+ /// Set lifetime for future added entries.
+ void SetLifetime (Time lifetime) { m_lifetime = lifetime; }
+ /// Return lifetime for existing entries in cache
+ Time GetLifeTime () const { return m_lifetime; }
+private:
+ /// Unique packet ID
+ struct UniqueId
+ {
+ /// ID is supposed to be unique in single address context (e.g. sender address)
+ Ipv4Address m_context;
+ /// The id
+ uint32_t m_id;
+ /// When record will expire
+ Time m_expire;
+ };
+ struct IsExpired
+ {
+ bool operator() (const struct UniqueId & u) const
+ {
+ return (u.m_expire < Simulator::Now ());
+ }
+ };
+ /// Already seen IDs
+ std::vector<UniqueId> m_idCache;
+ /// Default lifetime for ID records
+ Time m_lifetime;
+};
+
+}
+}
+#endif /* IDCACHE_H_ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-neighbor.cc Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,173 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+
+#include "aodv-neighbor.h"
+#include "ns3/log.h"
+#include <algorithm>
+
+NS_LOG_COMPONENT_DEFINE ("AodvNeighbors");
+
+namespace ns3
+{
+namespace aodv
+{
+Neighbors::Neighbors (Time delay) :
+ m_ntimer (Timer::CANCEL_ON_DESTROY)
+{
+ m_ntimer.SetDelay(delay);
+ m_ntimer.SetFunction(&Neighbors::Purge, this);
+ m_txErrorCallback = MakeCallback (& Neighbors::ProcessTxError, this);
+}
+
+bool
+Neighbors::IsNeighbor (Ipv4Address addr)
+{
+ Purge ();
+ for (std::vector<Neighbor>::const_iterator i = m_nb.begin ();
+ i != m_nb.end (); ++i)
+ {
+ if (i->m_neighborAddress == addr)
+ return true;
+ }
+ return false;
+}
+
+Time
+Neighbors::GetExpireTime (Ipv4Address addr)
+{
+ Purge ();
+ for (std::vector<Neighbor>::const_iterator i = m_nb.begin (); i
+ != m_nb.end (); ++i)
+ {
+ if (i->m_neighborAddress == addr)
+ return (i->m_expireTime - Simulator::Now ());
+ }
+ return Seconds (0);
+}
+
+void
+Neighbors::Update (Ipv4Address addr, Time expire)
+{
+ for (std::vector<Neighbor>::iterator i = m_nb.begin (); i != m_nb.end (); ++i)
+ if (i->m_neighborAddress == addr)
+ {
+ i->m_expireTime
+ = std::max (expire + Simulator::Now (), i->m_expireTime);
+ if (i->m_hardwareAddress == Mac48Address ())
+ i->m_hardwareAddress = LookupMacAddress (i->m_neighborAddress);
+ return;
+ }
+
+ NS_LOG_LOGIC ("Open link to " << addr);
+ Neighbor neighbor (addr, LookupMacAddress (addr), expire + Simulator::Now ());
+ m_nb.push_back (neighbor);
+ Purge ();
+}
+
+struct CloseNeighbor
+{
+ bool operator() (const Neighbors::Neighbor & nb) const
+ {
+ return ((nb.m_expireTime < Simulator::Now ()) || nb.close);
+ }
+};
+
+void
+Neighbors::Purge ()
+{
+ if (m_nb.empty ())
+ return;
+
+ CloseNeighbor pred;
+ if (!m_handleLinkFailure.IsNull ())
+ {
+ for (std::vector<Neighbor>::iterator j = m_nb.begin (); j != m_nb.end (); ++j)
+ {
+ if (pred (*j))
+ {
+ NS_LOG_LOGIC ("Close link to " << j->m_neighborAddress);
+ m_handleLinkFailure (j->m_neighborAddress);
+ }
+ }
+ }
+ m_nb.erase (std::remove_if (m_nb.begin (), m_nb.end (), pred), m_nb.end ());
+ m_ntimer.Cancel ();
+ m_ntimer.Schedule ();
+}
+
+void
+Neighbors::ScheduleTimer ()
+{
+ m_ntimer.Cancel ();
+ m_ntimer.Schedule ();
+}
+
+void
+Neighbors::AddArpCache (Ptr<ArpCache> a)
+{
+ m_arp.push_back (a);
+}
+
+void
+Neighbors::DelArpCache (Ptr<ArpCache> a)
+{
+ m_arp.erase (std::remove (m_arp.begin (), m_arp.end (), a), m_arp.end ());
+}
+
+Mac48Address
+Neighbors::LookupMacAddress (Ipv4Address addr)
+{
+ Mac48Address hwaddr;
+ for (std::vector<Ptr<ArpCache> >::const_iterator i = m_arp.begin ();
+ i != m_arp.end (); ++i)
+ {
+ ArpCache::Entry * entry = (*i)->Lookup (addr);
+ if (entry != 0 && entry->IsAlive () && !entry->IsExpired ())
+ {
+ hwaddr = Mac48Address::ConvertFrom (entry->GetMacAddress ());
+ break;
+ }
+ }
+ return hwaddr;
+}
+
+void
+Neighbors::ProcessTxError (WifiMacHeader const & hdr)
+{
+ Mac48Address addr = hdr.GetAddr1 ();
+
+ for (std::vector<Neighbor>::iterator i = m_nb.begin (); i != m_nb.end (); ++i)
+ {
+ if (i->m_hardwareAddress == addr)
+ i->close = true;
+ }
+ Purge ();
+}
+}
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-neighbor.h Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,114 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+
+#ifndef AODVNEIGHBOR_H
+#define AODVNEIGHBOR_H
+
+#include "ns3/simulator.h"
+#include "ns3/timer.h"
+#include "ns3/ipv4-address.h"
+#include "ns3/callback.h"
+#include "ns3/wifi-mac-header.h"
+#include "ns3/arp-cache.h"
+#include <vector>
+
+namespace ns3
+{
+namespace aodv
+{
+class RoutingProtocol;
+/**
+ * \ingroup aodv
+ * \brief maintain list of active neighbors
+ */
+class Neighbors
+{
+public:
+ /// c-tor
+ Neighbors (Time delay);
+ /// Neighbor description
+ struct Neighbor
+ {
+ Ipv4Address m_neighborAddress;
+ Mac48Address m_hardwareAddress;
+ Time m_expireTime;
+ bool close;
+
+ Neighbor (Ipv4Address ip, Mac48Address mac, Time t) :
+ m_neighborAddress (ip), m_hardwareAddress (mac), m_expireTime (t),
+ close (false)
+ {
+ }
+ };
+ /// Return expire time for neighbor node with address addr, if exists, else return 0.
+ Time GetExpireTime (Ipv4Address addr);
+ /// Check that node with address addr is neighbor
+ bool IsNeighbor (Ipv4Address addr);
+ /// Update expire time for entry with address addr, if it exists, else add new entry
+ void Update (Ipv4Address addr, Time expire);
+ /// Remove all expired entries
+ void Purge ();
+ /// Schedule m_ntimer.
+ void ScheduleTimer ();
+ /// Remove all entries
+ void Clear () { m_nb.clear (); }
+
+ /// Add ARP cache to be used to allow layer 2 notifications processing
+ void AddArpCache (Ptr<ArpCache>);
+ /// Don't use given ARP cache any more (interface is down)
+ void DelArpCache (Ptr<ArpCache>);
+ /// Get callback to ProcessTxError
+ Callback<void, WifiMacHeader const &> GetTxErrorCallback () const { return m_txErrorCallback; }
+
+ ///\name Handle link failure callback
+ //\{
+ void SetCallback (Callback<void, Ipv4Address> cb) { m_handleLinkFailure = cb;}
+ Callback<void, Ipv4Address> GetCallback () const { return m_handleLinkFailure; }
+ //\}
+private:
+ /// link failure callback
+ Callback<void, Ipv4Address> m_handleLinkFailure;
+ /// TX error callback
+ Callback<void, WifiMacHeader const &> m_txErrorCallback;
+ /// Timer for neighbor's list. Schedule Purge().
+ Timer m_ntimer;
+ /// vector of entries
+ std::vector<Neighbor> m_nb;
+ /// list of ARP cached to be used for layer 2 notifications processing
+ std::vector<Ptr<ArpCache> > m_arp;
+
+ /// Find MAC address by IP using list of ARP caches
+ Mac48Address LookupMacAddress (Ipv4Address);
+ /// Process layer 2 TX error notification
+ void ProcessTxError (WifiMacHeader const &);
+};
+
+}
+}
+
+#endif /* AODVNEIGHBOR_H */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-packet.cc Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,580 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+#include "aodv-packet.h"
+#include "ns3/address-utils.h"
+#include "ns3/packet.h"
+
+namespace ns3
+{
+namespace aodv
+{
+
+TypeHeader::TypeHeader (MessageType t) :
+ m_type (t), m_valid (true)
+{
+}
+
+TypeId
+TypeHeader::GetInstanceTypeId () const
+{
+ return TypeId ();
+}
+
+uint32_t
+TypeHeader::GetSerializedSize () const
+{
+ return 1;
+}
+
+void
+TypeHeader::Serialize (Buffer::Iterator i) const
+{
+ i.WriteU8 ((uint8_t) m_type);
+}
+
+uint32_t
+TypeHeader::Deserialize (Buffer::Iterator start)
+{
+ Buffer::Iterator i = start;
+ uint8_t type = i.ReadU8 ();
+ m_valid = true;
+ switch (type)
+ {
+ case AODVTYPE_RREQ:
+ case AODVTYPE_RREP:
+ case AODVTYPE_RERR:
+ case AODVTYPE_RREP_ACK:
+ {
+ m_type = (MessageType) type;
+ break;
+ }
+ default:
+ m_valid = false;
+ }
+ uint32_t dist = i.GetDistanceFrom (start);
+ NS_ASSERT (dist == GetSerializedSize ());
+ return dist;
+}
+
+void
+TypeHeader::Print (std::ostream &os) const
+{
+ switch (m_type)
+ {
+ case AODVTYPE_RREQ:
+ {
+ os << "RREQ" << "\n";
+ break;
+ }
+ case AODVTYPE_RREP:
+ {
+ os << "RREP" << "\n";
+ break;
+ }
+ case AODVTYPE_RERR:
+ {
+ os << "RERR" << "\n";
+ break;
+ }
+ case AODVTYPE_RREP_ACK:
+ {
+ os << "RREP_ACK" << "\n";
+ break;
+ }
+ default:
+ os << "UNKNOWN_TYPE";
+ }
+}
+
+bool
+TypeHeader::operator== (TypeHeader const & o) const
+{
+ return (m_type == o.m_type && m_valid == o.m_valid);
+}
+
+std::ostream &
+operator<< (std::ostream & os, TypeHeader const & h)
+{
+ h.Print (os);
+ return os;
+}
+
+//-----------------------------------------------------------------------------
+// RREQ
+//-----------------------------------------------------------------------------
+RreqHeader::RreqHeader (uint8_t flags, uint8_t reserved, uint8_t hopCount, uint32_t requestID, Ipv4Address dst,
+ uint32_t dstSeqNo, Ipv4Address origin, uint32_t originSeqNo) :
+ m_flags (flags), m_reserved (reserved), m_hopCount (hopCount), m_requestID (requestID), m_dst(dst),
+ m_dstSeqNo (dstSeqNo), m_origin(origin), m_originSeqNo (originSeqNo)
+{
+}
+
+TypeId
+RreqHeader::GetInstanceTypeId () const
+{
+ return TypeId ();
+}
+
+uint32_t
+RreqHeader::GetSerializedSize () const
+{
+ return 23;
+}
+
+void
+RreqHeader::Serialize (Buffer::Iterator i) const
+{
+ i.WriteU8 (m_flags);
+ i.WriteU8 (m_reserved);
+ i.WriteU8 (m_hopCount);
+ i.WriteHtonU32 (m_requestID);
+ WriteTo (i, m_dst);
+ i.WriteHtonU32 (m_dstSeqNo);
+ WriteTo (i, m_origin);
+ i.WriteHtonU32 (m_originSeqNo);
+}
+
+uint32_t
+RreqHeader::Deserialize (Buffer::Iterator start)
+{
+ Buffer::Iterator i = start;
+ m_flags = i.ReadU8 ();
+ m_reserved = i.ReadU8 ();
+ m_hopCount = i.ReadU8 ();
+ m_requestID = i.ReadNtohU32 ();
+ ReadFrom (i, m_dst);
+ m_dstSeqNo = i.ReadNtohU32 ();
+ ReadFrom (i, m_origin);
+ m_originSeqNo = i.ReadNtohU32 ();
+
+ uint32_t dist = i.GetDistanceFrom (start);
+ NS_ASSERT (dist == GetSerializedSize ());
+ return dist;
+}
+
+void
+RreqHeader::Print (std::ostream &os) const
+{
+ os << "RREQ ID " << m_requestID << "\n" << "destination: ipv4 " << m_dst
+ << " " << "sequence number " << m_dstSeqNo << "\n" << "source: ipv4 "
+ << m_origin << " " << "sequence number " << m_originSeqNo << "\n"
+ << "flags:\n" << "Gratuitous RREP " << (*this).GetGratiousRrep () << "\n"
+ << "Destination only " << (*this).GetDestinationOnly () << "\n"
+ << "Unknown sequence number " << (*this).GetUnknownSeqno () << "\n";
+}
+
+std::ostream &
+operator<< (std::ostream & os, RreqHeader const & h)
+{
+ h.Print (os);
+ return os;
+}
+
+void
+RreqHeader::SetGratiousRrep (bool f)
+{
+ if (f)
+ m_flags |= (1 << 5);
+ else
+ m_flags &= ~(1 << 5);
+}
+
+bool
+RreqHeader::GetGratiousRrep () const
+{
+ return (m_flags & (1 << 5));
+}
+
+void
+RreqHeader::SetDestinationOnly (bool f)
+{
+ if (f)
+ m_flags |= (1 << 4);
+ else
+ m_flags &= ~(1 << 4);
+}
+
+bool
+RreqHeader::GetDestinationOnly () const
+{
+ return (m_flags & (1 << 4));
+}
+
+void
+RreqHeader::SetUnknownSeqno (bool f)
+{
+ if (f)
+ m_flags |= (1 << 3);
+ else
+ m_flags &= ~(1 << 3);
+}
+
+bool
+RreqHeader::GetUnknownSeqno () const
+{
+ return (m_flags & (1 << 3));
+}
+
+bool
+RreqHeader::operator== (RreqHeader const & o) const
+{
+ return (m_flags == o.m_flags && m_reserved == o.m_reserved &&
+ m_hopCount == o.m_hopCount && m_requestID == o.m_requestID &&
+ m_dst == o.m_dst && m_dstSeqNo == o.m_dstSeqNo &&
+ m_origin == o.m_origin && m_originSeqNo == o.m_originSeqNo);
+}
+
+//-----------------------------------------------------------------------------
+// RREP
+//-----------------------------------------------------------------------------
+
+RrepHeader::RrepHeader (uint8_t prefixSize, uint8_t hopCount, Ipv4Address dst,
+ uint32_t dstSeqNo, Ipv4Address origin, Time lifeTime) :
+ m_flags (0), m_prefixSize (prefixSize), m_hopCount (hopCount),
+ m_dst (dst), m_dstSeqNo (dstSeqNo), m_origin (origin)
+{
+ m_lifeTime = uint32_t (lifeTime.GetMilliSeconds ());
+}
+
+TypeId
+RrepHeader::GetInstanceTypeId () const
+{
+ return TypeId ();
+}
+
+uint32_t
+RrepHeader::GetSerializedSize () const
+{
+ return 19;
+}
+
+void
+RrepHeader::Serialize (Buffer::Iterator i) const
+{
+ i.WriteU8 (m_flags);
+ i.WriteU8 (m_prefixSize);
+ i.WriteU8 (m_hopCount);
+ WriteTo (i, m_dst);
+ i.WriteHtonU32 (m_dstSeqNo);
+ WriteTo (i, m_origin);
+ i.WriteHtonU32 (m_lifeTime);
+}
+
+uint32_t
+RrepHeader::Deserialize (Buffer::Iterator start)
+{
+ Buffer::Iterator i = start;
+
+ m_flags = i.ReadU8 ();
+ m_prefixSize = i.ReadU8 ();
+ m_hopCount = i.ReadU8 ();
+ ReadFrom (i, m_dst);
+ m_dstSeqNo = i.ReadNtohU32 ();
+ ReadFrom (i, m_origin);
+ m_lifeTime = i.ReadNtohU32 ();
+
+ uint32_t dist = i.GetDistanceFrom (start);
+ NS_ASSERT (dist == GetSerializedSize ());
+ return dist;
+}
+
+void
+RrepHeader::Print (std::ostream &os) const
+{
+ os << "destination: ipv4 " << m_dst << "sequence number " << m_dstSeqNo;
+ if (m_prefixSize != 0)
+ os << "prefix size " << m_prefixSize << "\n";
+ else
+ os << "\n";
+ os << "source ipv4 " << m_origin << "\n" << "life time " << m_lifeTime
+ << "\n" << "acknowledgment required flag " << (*this).GetAckRequired ()
+ << "\n";
+}
+
+void
+RrepHeader::SetLifeTime (Time t)
+{
+ m_lifeTime = t.GetMilliSeconds ();
+}
+
+Time
+RrepHeader::GetLifeTime () const
+{
+ Time t (MilliSeconds (m_lifeTime));
+ return t;
+}
+
+void
+RrepHeader::SetAckRequired (bool f)
+{
+ if (f)
+ m_flags |= (1 << 6);
+ else
+ m_flags &= ~(1 << 6);
+}
+
+bool
+RrepHeader::GetAckRequired () const
+{
+ return (m_flags & (1 << 6));
+}
+
+void
+RrepHeader::SetPrefixSize (uint8_t sz)
+{
+ m_prefixSize = sz;
+}
+
+uint8_t
+RrepHeader::GetPrefixSize () const
+{
+ return m_prefixSize;
+}
+
+bool
+RrepHeader::operator== (RrepHeader const & o) const
+{
+ return (m_flags == o.m_flags && m_prefixSize == o.m_prefixSize &&
+ m_hopCount == o.m_hopCount && m_dst == o.m_dst && m_dstSeqNo == o.m_dstSeqNo &&
+ m_origin == o.m_origin && m_lifeTime == o.m_lifeTime);
+}
+
+void
+RrepHeader::SetHello (Ipv4Address origin, uint32_t srcSeqNo, Time lifetime)
+{
+ m_flags = 0;
+ m_prefixSize = 0;
+ m_hopCount = 0;
+ m_dst = origin;
+ m_dstSeqNo = srcSeqNo;
+ m_origin = origin;
+ m_lifeTime = lifetime.GetMilliSeconds ();
+}
+
+std::ostream &
+operator<< (std::ostream & os, RrepHeader const & h)
+{
+ h.Print (os);
+ return os;
+}
+
+//-----------------------------------------------------------------------------
+// RREP-ACK
+//-----------------------------------------------------------------------------
+
+RrepAckHeader::RrepAckHeader () :
+ m_reserved (0)
+{
+}
+
+TypeId
+RrepAckHeader::GetInstanceTypeId () const
+{
+ return TypeId ();
+}
+
+uint32_t
+RrepAckHeader::GetSerializedSize () const
+{
+ return 1;
+}
+
+void
+RrepAckHeader::Serialize (Buffer::Iterator i ) const
+{
+ i.WriteU8 (m_reserved);
+}
+
+uint32_t
+RrepAckHeader::Deserialize (Buffer::Iterator start )
+{
+ Buffer::Iterator i = start;
+ m_reserved = i.ReadU8 ();
+ uint32_t dist = i.GetDistanceFrom (start);
+ NS_ASSERT (dist == GetSerializedSize ());
+ return dist;
+}
+
+void
+RrepAckHeader::Print (std::ostream &os ) const
+{
+}
+
+bool
+RrepAckHeader::operator== (RrepAckHeader const & o ) const
+{
+ return m_reserved == o.m_reserved;
+}
+
+std::ostream &
+operator<< (std::ostream & os, RrepAckHeader const & h )
+{
+ h.Print (os);
+ return os;
+}
+
+//-----------------------------------------------------------------------------
+// RERR
+//-----------------------------------------------------------------------------
+RerrHeader::RerrHeader () :
+ m_flag (0), m_reserved (0)
+{
+}
+
+TypeId
+RerrHeader::GetInstanceTypeId () const
+{
+ return TypeId ();
+}
+
+uint32_t
+RerrHeader::GetSerializedSize () const
+{
+ return (3 + 8 * GetDestCount ());
+}
+
+void
+RerrHeader::Serialize (Buffer::Iterator i ) const
+{
+ i.WriteU8 (m_flag);
+ i.WriteU8 (m_reserved);
+ i.WriteU8 (GetDestCount ());
+ std::map<Ipv4Address, uint32_t>::const_iterator j;
+ for (j = m_unreachableDstSeqNo.begin (); j != m_unreachableDstSeqNo.end (); ++j)
+ {
+ WriteTo (i, (*j).first);
+ i.WriteHtonU32 ((*j).second);
+ }
+}
+
+uint32_t
+RerrHeader::Deserialize (Buffer::Iterator start )
+{
+ Buffer::Iterator i = start;
+ m_flag = i.ReadU8 ();
+ m_reserved = i.ReadU8 ();
+ uint8_t dest = i.ReadU8 ();
+ m_unreachableDstSeqNo.clear ();
+ Ipv4Address address;
+ uint32_t seqNo;
+ for (uint8_t k = 0; k < dest; ++k)
+ {
+ ReadFrom (i, address);
+ seqNo = i.ReadNtohU32 ();
+ m_unreachableDstSeqNo.insert (std::make_pair (address, seqNo));
+ }
+
+ uint32_t dist = i.GetDistanceFrom (start);
+ NS_ASSERT (dist == GetSerializedSize ());
+ return dist;
+}
+
+void
+RerrHeader::Print (std::ostream &os ) const
+{
+ os << "Unreachable destination (ipv4 address, seq. number):\n";
+ std::map<Ipv4Address, uint32_t>::const_iterator j;
+ for (j = m_unreachableDstSeqNo.begin (); j != m_unreachableDstSeqNo.end (); ++j)
+ {
+ os << (*j).first << ", " << (*j).second << "\n";
+ }
+ os << "No delete flag " << (*this).GetNoDelete () << "\n";
+}
+
+void
+RerrHeader::SetNoDelete (bool f )
+{
+ if (f)
+ m_flag |= (1 << 0);
+ else
+ m_flag &= ~(1 << 0);
+}
+
+bool
+RerrHeader::GetNoDelete () const
+{
+ return (m_flag & (1 << 0));
+}
+
+bool
+RerrHeader::AddUnDestination (Ipv4Address dst, uint32_t seqNo )
+{
+ if (m_unreachableDstSeqNo.find (dst) != m_unreachableDstSeqNo.end ())
+ return true;
+
+ NS_ASSERT (GetDestCount() < 255); // can't support more than 255 destinations in single RERR
+ m_unreachableDstSeqNo.insert (std::make_pair (dst, seqNo));
+ return true;
+}
+
+bool
+RerrHeader::RemoveUnDestination (std::pair<Ipv4Address, uint32_t> & un )
+{
+ if (m_unreachableDstSeqNo.empty ())
+ return false;
+ std::map<Ipv4Address, uint32_t>::iterator i = m_unreachableDstSeqNo.begin ();
+ un = *i;
+ m_unreachableDstSeqNo.erase (i);
+ return true;
+}
+
+void
+RerrHeader::Clear ()
+{
+ m_unreachableDstSeqNo.clear ();
+ m_flag = 0;
+ m_reserved = 0;
+}
+
+bool
+RerrHeader::operator== (RerrHeader const & o ) const
+{
+ if (m_flag != o.m_flag || m_reserved != o.m_reserved || GetDestCount () != o.GetDestCount ())
+ return false;
+
+ std::map<Ipv4Address, uint32_t>::const_iterator j = m_unreachableDstSeqNo.begin ();
+ std::map<Ipv4Address, uint32_t>::const_iterator k = o.m_unreachableDstSeqNo.begin ();
+ for (uint8_t i = 0; i < GetDestCount (); ++i)
+ {
+ if ((j->first != k->first) || (j->second != k->second))
+ return false;
+
+ j++;
+ k++;
+ }
+ return true;
+}
+
+std::ostream &
+operator<< (std::ostream & os, RerrHeader const & h )
+{
+ h.Print (os);
+ return os;
+}
+}
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-packet.h Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,330 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+#ifndef AODVPACKET_H
+#define AODVPACKET_H
+
+#include <iostream>
+#include "ns3/header.h"
+#include "ns3/enum.h"
+#include "ns3/ipv4-address.h"
+#include <map>
+#include "ns3/nstime.h"
+
+namespace ns3 {
+namespace aodv {
+
+enum MessageType
+{
+ AODVTYPE_RREQ = 1, //!< AODVTYPE_RREQ
+ AODVTYPE_RREP = 2, //!< AODVTYPE_RREP
+ AODVTYPE_RERR = 3, //!< AODVTYPE_RERR
+ AODVTYPE_RREP_ACK = 4 //!< AODVTYPE_RREP_ACK
+};
+
+/**
+* \ingroup aodv
+* \brief AODV types
+*/
+class TypeHeader : public Header
+{
+public:
+ /// c-tor
+ TypeHeader (MessageType t);
+
+ ///\name Header serialization/deserialization
+ //\{
+ TypeId GetInstanceTypeId () const;
+ uint32_t GetSerializedSize () const;
+ void Serialize (Buffer::Iterator start) const;
+ uint32_t Deserialize (Buffer::Iterator start);
+ void Print (std::ostream &os) const;
+ //\}
+
+ /// Return type
+ MessageType Get () const { return m_type; }
+ /// Check that type if valid
+ bool IsValid () const { return m_valid; }
+ bool operator== (TypeHeader const & o) const;
+private:
+ MessageType m_type;
+ bool m_valid;
+};
+
+std::ostream & operator<< (std::ostream & os, TypeHeader const & h);
+
+/**
+* \ingroup aodv
+* \brief Route Request (RREQ) Message Format
+ \verbatim
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type |J|R|G|D|U| Reserved | Hop Count |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | RREQ ID |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Destination IP Address |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Destination Sequence Number |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Originator IP Address |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Originator Sequence Number |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ \endverbatim
+*/
+class RreqHeader : public Header
+{
+public:
+ /// c-tor
+ RreqHeader (uint8_t flags = 0, uint8_t reserved = 0, uint8_t hopCount = 0,
+ uint32_t requestID = 0, Ipv4Address dst = Ipv4Address (),
+ uint32_t dstSeqNo = 0, Ipv4Address origin = Ipv4Address (),
+ uint32_t originSeqNo = 0);
+
+ ///\name Header serialization/deserialization
+ //\{
+ TypeId GetInstanceTypeId () const;
+ uint32_t GetSerializedSize () const;
+ void Serialize (Buffer::Iterator start) const;
+ uint32_t Deserialize (Buffer::Iterator start);
+ void Print (std::ostream &os) const;
+ //\}
+
+ ///\name Fields
+ //\{
+ void SetHopCount (uint8_t count) { m_hopCount = count; }
+ uint8_t GetHopCount () const { return m_hopCount; }
+ void SetId (uint32_t id) { m_requestID = id; }
+ uint8_t GetId () const { return m_requestID; }
+ void SetDst (Ipv4Address a) { m_dst = a; }
+ Ipv4Address GetDst () const { return m_dst; }
+ void SetDstSeqno (uint32_t s) { m_dstSeqNo = s; }
+ uint32_t GetDstSeqno () const { return m_dstSeqNo; }
+ void SetOrigin (Ipv4Address a) { m_origin = a; }
+ Ipv4Address GetOrigin () const { return m_origin; }
+ void SetOriginSeqno (uint32_t s) { m_originSeqNo = s; }
+ uint32_t GetOriginSeqno () const { return m_originSeqNo; }
+ //\}
+
+ ///\name Flags
+ //\{
+ void SetGratiousRrep (bool f);
+ bool GetGratiousRrep () const;
+ void SetDestinationOnly (bool f);
+ bool GetDestinationOnly () const;
+ void SetUnknownSeqno (bool f);
+ bool GetUnknownSeqno () const;
+ //\}
+
+ bool operator== (RreqHeader const & o) const;
+private:
+ uint8_t m_flags; ///< |J|R|G|D|U| bit flags, see RFC
+ uint8_t m_reserved; ///< Not used
+ uint8_t m_hopCount; ///< Hop Count
+ uint32_t m_requestID; ///< RREQ ID
+ Ipv4Address m_dst; ///< Destination IP Address
+ uint32_t m_dstSeqNo; ///< Destination Sequence Number
+ Ipv4Address m_origin; ///< Originator IP Address
+ uint32_t m_originSeqNo; ///< Source Sequence Number
+};
+
+std::ostream & operator<< (std::ostream & os, RreqHeader const &);
+
+/**
+* \ingroup aodv
+* \brief Route Reply (RREP) Message Format
+ \verbatim
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type |R|A| Reserved |Prefix Sz| Hop Count |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Destination IP address |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Destination Sequence Number |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Originator IP address |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Lifetime |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ \endverbatim
+*/
+class RrepHeader : public Header
+{
+public:
+ /// c-tor
+ RrepHeader (uint8_t prefixSize = 0, uint8_t hopCount = 0, Ipv4Address dst =
+ Ipv4Address (), uint32_t dstSeqNo = 0, Ipv4Address origin =
+ Ipv4Address (), Time lifetime = MilliSeconds (0));
+ ///\name Header serialization/deserialization
+ //\{
+ TypeId GetInstanceTypeId () const;
+ uint32_t GetSerializedSize () const;
+ void Serialize (Buffer::Iterator start) const;
+ uint32_t Deserialize (Buffer::Iterator start);
+ void Print (std::ostream &os) const;
+ //\}
+
+ ///\name Fields
+ //\{
+ void SetHopCount (uint8_t count) { m_hopCount = count; }
+ uint8_t GetHopCount () const { return m_hopCount; }
+ void SetDst (Ipv4Address a) { m_dst = a; }
+ Ipv4Address GetDst () const { return m_dst; }
+ void SetDstSeqno (uint32_t s) { m_dstSeqNo = s; }
+ uint32_t GetDstSeqno () const { return m_dstSeqNo; }
+ void SetOrigin (Ipv4Address a) { m_origin = a; }
+ Ipv4Address GetOrigin () const { return m_origin; }
+ void SetLifeTime (Time t);
+ Time GetLifeTime () const;
+ //\}
+
+ ///\name Flags
+ //\{
+ void SetAckRequired (bool f);
+ bool GetAckRequired () const;
+ void SetPrefixSize (uint8_t sz);
+ uint8_t GetPrefixSize () const;
+ //\}
+
+ /// Configure RREP to be a Hello message
+ void SetHello (Ipv4Address src, uint32_t srcSeqNo, Time lifetime);
+
+ bool operator== (RrepHeader const & o) const;
+private:
+ uint8_t m_flags; ///< A - acknowledgment required flag
+ uint8_t m_prefixSize; ///< Prefix Size
+ uint8_t m_hopCount; ///< Hop Count
+ Ipv4Address m_dst; ///< Destination IP Address
+ uint32_t m_dstSeqNo; ///< Destination Sequence Number
+ Ipv4Address m_origin; ///< Source IP Address
+ uint32_t m_lifeTime; ///< Lifetime (in milliseconds)
+};
+
+std::ostream & operator<< (std::ostream & os, RrepHeader const &);
+
+/**
+* \ingroup aodv
+* \brief Route Reply Acknowledgment (RREP-ACK) Message Format
+ \verbatim
+ 0 1
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Reserved |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ \endverbatim
+*/
+class RrepAckHeader : public Header
+{
+public:
+ /// c-tor
+ RrepAckHeader ();
+
+ ///\name Header serialization/deserialization
+ //\{
+ TypeId GetInstanceTypeId () const;
+ uint32_t GetSerializedSize () const;
+ void Serialize (Buffer::Iterator start) const;
+ uint32_t Deserialize (Buffer::Iterator start);
+ void Print (std::ostream &os) const;
+ //\}
+
+ bool operator== (RrepAckHeader const & o) const;
+private:
+ uint8_t m_reserved;
+};
+std::ostream & operator<< (std::ostream & os, RrepAckHeader const &);
+
+
+/**
+* \ingroup aodv
+* \brief Route Error (RERR) Message Format
+ \verbatim
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type |N| Reserved | DestCount |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Unreachable Destination IP Address (1) |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Unreachable Destination Sequence Number (1) |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-|
+ | Additional Unreachable Destination IP Addresses (if needed) |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ |Additional Unreachable Destination Sequence Numbers (if needed)|
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ \endverbatim
+*/
+class RerrHeader : public Header
+{
+public:
+ /// c-tor
+ RerrHeader ();
+
+ ///\name Header serialization/deserialization
+ //\{
+ TypeId GetInstanceTypeId () const;
+ uint32_t GetSerializedSize () const;
+ void Serialize (Buffer::Iterator i) const;
+ uint32_t Deserialize (Buffer::Iterator start);
+ void Print (std::ostream &os) const;
+ //\}
+
+ ///\name No delete flag
+ //\{
+ void SetNoDelete (bool f);
+ bool GetNoDelete () const;
+ //\}
+
+ /**
+ * Add unreachable node address and its sequence number in RERR header
+ *\return false if we already added maximum possible number of unreachable destinations
+ */
+ bool AddUnDestination (Ipv4Address dst, uint32_t seqNo);
+ /** Delete pair (address + sequence number) from REER header, if the number of unreachable destinations > 0
+ * \return true on success
+ */
+ bool RemoveUnDestination (std::pair<Ipv4Address, uint32_t> & un);
+ /// Clear header
+ void Clear();
+ /// Return number of unreachable destinations in RERR message
+ uint8_t GetDestCount () const { return (uint8_t)m_unreachableDstSeqNo.size(); }
+ bool operator== (RerrHeader const & o) const;
+private:
+ uint8_t m_flag; ///< No delete flag
+ uint8_t m_reserved; ///< Not used
+
+ /// List of Unreachable destination: IP addresses and sequence numbers
+ std::map<Ipv4Address, uint32_t> m_unreachableDstSeqNo;
+};
+
+std::ostream & operator<< (std::ostream & os, RerrHeader const &);
+}
+}
+#endif /* AODVPACKET_H */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-routing-protocol.cc Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,1498 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+#include "aodv-routing-protocol.h"
+#include "ns3/log.h"
+#include "ns3/random-variable.h"
+#include "ns3/inet-socket-address.h"
+#include "ns3/trace-source-accessor.h"
+#include "ns3/udp-socket-factory.h"
+#include "ns3/wifi-net-device.h"
+#include "ns3/adhoc-wifi-mac.h"
+#include <algorithm>
+
+NS_LOG_COMPONENT_DEFINE ("AodvRoutingProtocol");
+
+namespace ns3
+{
+namespace aodv
+{
+NS_OBJECT_ENSURE_REGISTERED (RoutingProtocol);
+
+/// UDP Port for AODV control traffic
+const uint32_t RoutingProtocol::AODV_PORT = 654;
+
+RoutingProtocol::RoutingProtocol () :
+ RreqRetries (2),
+ RreqRateLimit (10),
+ ActiveRouteTimeout (Seconds (3)),
+ NetDiameter (35),
+ NodeTraversalTime (MilliSeconds (40)),
+ NetTraversalTime (Scalar (2 * NetDiameter) * NodeTraversalTime),
+ PathDiscoveryTime ( Scalar (2) * NetTraversalTime),
+ MyRouteTimeout (Scalar (2) * std::max (PathDiscoveryTime, ActiveRouteTimeout)),
+ HelloInterval(Seconds (1)),
+ AllowedHelloLoss (2),
+ DeletePeriod (Scalar(5) * std::max(ActiveRouteTimeout, HelloInterval)),
+ NextHopWait (NodeTraversalTime + MilliSeconds (10)),
+ TimeoutBuffer (2),
+ BlackListTimeout(Scalar (RreqRetries) * NetTraversalTime),
+ MaxQueueLen (64),
+ MaxQueueTime (Seconds(30)),
+ DestinationOnly (false),
+ GratuitousReply (true),
+ EnableHello (true),
+ m_routingTable (DeletePeriod),
+ m_queue (MaxQueueLen, MaxQueueTime),
+ m_requestId (0),
+ m_seqNo (0),
+ m_rreqIdCache (PathDiscoveryTime),
+ m_dpd (PathDiscoveryTime),
+ m_nb(HelloInterval),
+ m_rreqCount (0),
+ m_htimer (Timer::CANCEL_ON_DESTROY),
+ m_rreqRateLimitTimer (Timer::CANCEL_ON_DESTROY)
+{
+ if (EnableHello)
+ {
+ m_nb.SetCallback (MakeCallback (&RoutingProtocol::SendRerrWhenBreaksLinkToNextHop, this));
+ }
+}
+
+TypeId
+RoutingProtocol::GetTypeId (void)
+{
+ static TypeId tid = TypeId ("ns3::aodv::RoutingProtocol")
+ .SetParent<Ipv4RoutingProtocol> ()
+ .AddConstructor<RoutingProtocol> ()
+ .AddAttribute ("HelloInterval", "HELLO messages emission interval.",
+ TimeValue (Seconds (1)),
+ MakeTimeAccessor (&RoutingProtocol::HelloInterval),
+ MakeTimeChecker ())
+ .AddAttribute ("RreqRetries", "Maximum number of retransmissions of RREQ to discover a route",
+ UintegerValue (2),
+ MakeUintegerAccessor (&RoutingProtocol::RreqRetries),
+ MakeUintegerChecker<uint32_t> ())
+ .AddAttribute ("RreqRateLimit", "Maximum number of RREQ per second.",
+ UintegerValue (10),
+ MakeUintegerAccessor (&RoutingProtocol::RreqRateLimit),
+ MakeUintegerChecker<uint32_t> ())
+ .AddAttribute ("NodeTraversalTime", "Conservative estimate of the average one hop traversal time for packets and should include "
+ "queuing delays, interrupt processing times and transfer times.",
+ TimeValue (MilliSeconds (40)),
+ MakeTimeAccessor (&RoutingProtocol::NodeTraversalTime),
+ MakeTimeChecker ())
+ .AddAttribute ("NextHopWait", "Period of our waiting for the neighbour's RREP_ACK = 10 ms + NodeTraversalTime",
+ TimeValue (MilliSeconds (50)),
+ MakeTimeAccessor (&RoutingProtocol::NextHopWait),
+ MakeTimeChecker ())
+ .AddAttribute ("ActiveRouteTimeout", "Period of time during which the route is considered to be valid",
+ TimeValue (Seconds (3)),
+ MakeTimeAccessor (&RoutingProtocol::ActiveRouteTimeout),
+ MakeTimeChecker ())
+ .AddAttribute ("MyRouteTimeout", "Value of lifetime field in RREP generating by this node = 2 * max(ActiveRouteTimeout, PathDiscoveryTime)",
+ TimeValue (Seconds (11.2)),
+ MakeTimeAccessor (&RoutingProtocol::MyRouteTimeout),
+ MakeTimeChecker ())
+ .AddAttribute ("BlackListTimeout", "Time for which the node is put into the blacklist = RreqRetries * NetTraversalTime",
+ TimeValue (Seconds (5.6)),
+ MakeTimeAccessor (&RoutingProtocol::BlackListTimeout),
+ MakeTimeChecker ())
+ .AddAttribute ("DeletePeriod", "DeletePeriod is intended to provide an upper bound on the time for which an upstream node A "
+ "can have a neighbor B as an active next hop for destination D, while B has invalidated the route to D."
+ " = 5 * max (HelloInterval, ActiveRouteTimeout)",
+ TimeValue (Seconds (15)),
+ MakeTimeAccessor (&RoutingProtocol::DeletePeriod),
+ MakeTimeChecker ())
+ .AddAttribute ("TimeoutBuffer", "Its purpose is to provide a buffer for the timeout so that if the RREP is delayed"
+ " due to congestion, a timeout is less likely to occur while the RREP is still en route back to the source.",
+ UintegerValue (2),
+ MakeUintegerAccessor (&RoutingProtocol::TimeoutBuffer),
+ MakeUintegerChecker<uint16_t> ())
+ .AddAttribute ("NetDiameter", "Net diameter measures the maximum possible number of hops between two nodes in the network",
+ UintegerValue (35),
+ MakeUintegerAccessor (&RoutingProtocol::NetDiameter),
+ MakeUintegerChecker<uint32_t> ())
+ .AddAttribute ("NetTraversalTime", "Estimate of the average net traversal time = 2 * NodeTraversalTime * NetDiameter",
+ TimeValue (Seconds (2.8)),
+ MakeTimeAccessor (&RoutingProtocol::NetTraversalTime),
+ MakeTimeChecker ())
+ .AddAttribute ("PathDiscoveryTime", "Estimate of maximum time needed to find route in network = 2 * NetTraversalTime",
+ TimeValue (Seconds (5.6)),
+ MakeTimeAccessor (&RoutingProtocol::PathDiscoveryTime),
+ MakeTimeChecker ())
+ .AddAttribute ("MaxQueueLen", "Maximum number of packets that we allow a routing protocol to buffer.",
+ UintegerValue (64),
+ MakeUintegerAccessor (&RoutingProtocol::MaxQueueLen),
+ MakeUintegerChecker<uint32_t> ())
+ .AddAttribute ("MaxQueueTime", "Maximum time packets can be queued (in seconds)",
+ TimeValue (Seconds (30)),
+ MakeTimeAccessor (&RoutingProtocol::MaxQueueTime),
+ MakeTimeChecker ())
+ .AddAttribute ("AllowedHelloLoss", "Number of hello messages which may be loss for valid link.",
+ UintegerValue (2),
+ MakeUintegerAccessor (&RoutingProtocol::AllowedHelloLoss),
+ MakeUintegerChecker<uint16_t> ())
+ .AddAttribute ("GratuitousReply", "Indicates whether a gratuitous RREP should be unicast to the node originated route discovery.",
+ BooleanValue (true),
+ MakeBooleanAccessor (&RoutingProtocol::SetGratuitousReplyFlag,
+ &RoutingProtocol::GetGratuitousReplyFlag),
+ MakeBooleanChecker ())
+ .AddAttribute ("DestinationOnly", "Indicates only the destination may respond to this RREQ.",
+ BooleanValue (false),
+ MakeBooleanAccessor (&RoutingProtocol::SetDesinationOnlyFlag,
+ &RoutingProtocol::GetDesinationOnlyFlag),
+ MakeBooleanChecker ())
+ .AddAttribute ("EnableHello", "Indicates whether a hello messages enable.",
+ BooleanValue (true),
+ MakeBooleanAccessor (&RoutingProtocol::SetHelloEnable,
+ &RoutingProtocol::GetHelloEnable),
+ MakeBooleanChecker ())
+ .AddAttribute ("EnableBroadcast", "Indicates whether a broadcast data packets forwarding enable.",
+ BooleanValue (true),
+ MakeBooleanAccessor (&RoutingProtocol::SetBroadcastEnable,
+ &RoutingProtocol::GetBroadcastEnable),
+ MakeBooleanChecker ())
+ ;
+ return tid;
+}
+
+RoutingProtocol::~RoutingProtocol ()
+{
+}
+
+void
+RoutingProtocol::DoDispose ()
+{
+ m_ipv4 = 0;
+ for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::iterator iter =
+ m_socketAddresses.begin (); iter != m_socketAddresses.end (); iter++)
+ {
+ iter->first->Close ();
+ }
+ m_socketAddresses.clear ();
+ Ipv4RoutingProtocol::DoDispose ();
+}
+
+void
+RoutingProtocol::Start ()
+{
+ m_scb = MakeCallback (&RoutingProtocol::Send, this);
+ m_ecb = MakeCallback (&RoutingProtocol::Drop, this);
+
+ if (EnableHello)
+ {
+ m_nb.ScheduleTimer ();
+ }
+ m_rreqRateLimitTimer.SetFunction (&RoutingProtocol::RreqRateLimitTimerExpire,
+ this);
+ m_rreqRateLimitTimer.Schedule (Seconds (1));
+}
+
+Ptr<Ipv4Route>
+RoutingProtocol::RouteOutput (Ptr<Packet> p, const Ipv4Header &header,
+ uint32_t oif, Socket::SocketErrno &sockerr)
+{
+ NS_LOG_FUNCTION (this << header.GetDestination ());
+ if (m_socketAddresses.empty ())
+ {
+ sockerr = Socket::ERROR_NOROUTETOHOST;
+ NS_LOG_LOGIC ("No aodv interfaces");
+ Ptr<Ipv4Route> route;
+ return route;
+ }
+ sockerr = Socket::ERROR_NOTERROR;
+ Ptr<Ipv4Route> route;
+ Ipv4Address dst = header.GetDestination ();
+ RoutingTableEntry rt;
+ if (m_routingTable.LookupRoute (dst, rt))
+ {
+ if (rt.GetFlag () == VALID)
+ {
+ route = rt.GetRoute ();
+ NS_ASSERT (route != 0);
+ NS_LOG_LOGIC("exist route to " << route->GetDestination() << " from interface " << route->GetSource());
+ UpdateRouteLifeTime (dst, ActiveRouteTimeout);
+ UpdateRouteLifeTime (route->GetGateway (), ActiveRouteTimeout);
+ }
+ else
+ {
+ bool result = true;
+ // May be null pointer (e.g. tcp-socket give null pointer)
+ if (p != Ptr<Packet> ())
+ {
+ QueueEntry newEntry (p, header, m_scb, m_ecb);
+ result = m_queue.Enqueue (newEntry);
+ if (result)
+ NS_LOG_LOGIC ("Add packet " << p->GetUid() << " to queue");
+
+ }
+ if ((rt.GetFlag () == INVALID) && result)
+ {
+ SendRequest (dst);
+ }
+ }
+ }
+ else
+ {
+ bool result = true;
+ if (p != Ptr<Packet> ())
+ {
+ QueueEntry newEntry (p, header, m_scb, m_ecb);
+ // Some protocols may ask route several times for a single packet.
+ result = m_queue.Enqueue (newEntry);
+ if (result)
+ NS_LOG_LOGIC ("Add packet " << p->GetUid() << " to queue. Protocol " << (uint16_t) header.GetProtocol ());
+ }
+ if (result)
+ SendRequest (dst);
+ }
+ return route;
+}
+
+bool
+RoutingProtocol::RouteInput (Ptr<const Packet> p, const Ipv4Header &header,
+ Ptr<const NetDevice> idev, UnicastForwardCallback ucb,
+ MulticastForwardCallback mcb, LocalDeliverCallback lcb, ErrorCallback ecb)
+{
+ NS_LOG_FUNCTION (this << p->GetUid() << header.GetDestination() << idev->GetAddress());
+ if (m_socketAddresses.empty ())
+ {
+ NS_LOG_LOGIC ("No aodv interfaces");
+ return false;
+ }
+ NS_ASSERT (m_ipv4 != 0);
+ // Check if input device supports IP
+ NS_ASSERT (m_ipv4->GetInterfaceForDevice (idev) >= 0);
+ int32_t iif = m_ipv4->GetInterfaceForDevice (idev);
+
+ Ipv4Address dst = header.GetDestination ();
+ Ipv4Address origin = header.GetSource ();
+
+ if (IsMyOwnAddress (origin))
+ return true;
+
+ // Local delivery to AODV interfaces
+ for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
+ m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
+ {
+ Ipv4InterfaceAddress iface = j->second;
+ if (m_ipv4->GetInterfaceForAddress (iface.GetLocal ()) == iif)
+ if (dst == iface.GetBroadcast ())
+ {
+ if (!EnableBroadcast)
+ {
+ return true;
+ }
+ if (m_dpd.IsDuplicate (p, header))
+ {
+ NS_LOG_DEBUG ("Duplicated packet " << p->GetUid () << " from " << origin << ". Drop.");
+ return true;
+ }
+ UpdateRouteLifeTime (origin, ActiveRouteTimeout);
+ NS_LOG_LOGIC ("Broadcast local delivery to " << iface.GetLocal ());
+ Ptr<Packet> packet = p->Copy ();
+ lcb (p, header, iif);
+ if (header.GetTtl () > 1)
+ {
+ NS_LOG_LOGIC ("Forward broadcast. TTL " << (uint16_t) header.GetTtl ());
+ RoutingTableEntry toBroadcast;
+ if (m_routingTable.LookupRoute (dst, toBroadcast))
+ {
+ Ptr<Ipv4Route> route = toBroadcast.GetRoute ();
+ ucb (route, packet, header);
+ }
+ else
+ {
+ NS_LOG_DEBUG ("No route to forward broadcast. Drop packet " << p->GetUid ());
+ }
+ }
+ else
+ {
+ NS_LOG_DEBUG ("TTL exceeded. Drop packet " << p->GetUid ());
+ }
+ return true;
+ }
+ }
+ for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
+ m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
+ {
+ Ipv4InterfaceAddress iface = j->second;
+ if (dst == iface.GetLocal ())
+ {
+ UpdateRouteLifeTime (origin, ActiveRouteTimeout);
+ RoutingTableEntry toOrigin;
+ if (m_routingTable.LookupRoute (origin, toOrigin))
+ {
+ UpdateRouteLifeTime (toOrigin.GetNextHop (), ActiveRouteTimeout);
+ m_nb.Update (toOrigin.GetNextHop (), ActiveRouteTimeout);
+ }
+ NS_LOG_LOGIC ("Unicast local delivery to " << iface.GetLocal ());
+ lcb (p, header, iif);
+ return true;
+ }
+ }
+
+ // Forwarding
+ return Forwarding (p, header, ucb, ecb);
+}
+
+bool
+RoutingProtocol::Forwarding (Ptr<const Packet> p, const Ipv4Header & header,
+ UnicastForwardCallback ucb, ErrorCallback ecb)
+{
+ Ipv4Address dst = header.GetDestination ();
+ Ipv4Address origin = header.GetSource ();
+ m_routingTable.Purge ();
+ RoutingTableEntry toDst;
+ if (m_routingTable.LookupRoute (dst, toDst))
+ {
+ if (toDst.GetFlag () == VALID)
+ {
+ Ptr<Ipv4Route> route = toDst.GetRoute ();
+ NS_LOG_LOGIC (route->GetSource()<<" forwarding to " << dst << " from " << origin << " packet " << p->GetUid ());
+
+ /*
+ * Each time a route is used to forward a data packet, its Active Route
+ * Lifetime field of the source, destination and the next hop on the
+ * path to the destination is updated to be no less than the current
+ * time plus ActiveRouteTimeout.
+ */
+ UpdateRouteLifeTime (origin, ActiveRouteTimeout);
+ UpdateRouteLifeTime (dst, ActiveRouteTimeout);
+ UpdateRouteLifeTime (route->GetGateway (), ActiveRouteTimeout);
+ /*
+ * Since the route between each originator and destination pair is expected to be symmetric, the
+ * Active Route Lifetime for the previous hop, along the reverse path back to the IP source, is also updated
+ * to be no less than the current time plus ActiveRouteTimeout
+ */
+ RoutingTableEntry toOrigin;
+ m_routingTable.LookupRoute (origin, toOrigin);
+ UpdateRouteLifeTime (toOrigin.GetNextHop (), ActiveRouteTimeout);
+
+ m_nb.Update (route->GetGateway (), ActiveRouteTimeout);
+ m_nb.Update (toOrigin.GetNextHop (), ActiveRouteTimeout);
+
+ ucb (route, p, header);
+ return true;
+ }
+ else
+ {
+ if (toDst.GetValidSeqNo ())
+ {
+ SendRerrWhenNoRouteToForward (dst, toDst.GetSeqNo (), origin);
+ NS_LOG_DEBUG ("Drop packet " << p->GetUid () << " because no route to forward it.");
+ return false;
+ }
+ }
+ }
+ NS_LOG_LOGIC ("route not found to "<< dst << ". Send RERR message.");
+ NS_LOG_DEBUG ("Drop packet " << p->GetUid () << " because no route to forward it.");
+ SendRerrWhenNoRouteToForward (dst, 0, origin);
+ return false;
+}
+
+void
+RoutingProtocol::SetIpv4 (Ptr<Ipv4> ipv4)
+{
+ NS_ASSERT (ipv4 != 0);
+ NS_ASSERT (m_ipv4 == 0);
+
+ if (EnableHello)
+ {
+ m_htimer.SetFunction (&RoutingProtocol::HelloTimerExpire, this);
+ m_htimer.Schedule (MilliSeconds (UniformVariable ().GetInteger (0, 100)));
+ }
+
+ m_ipv4 = ipv4;
+ Simulator::ScheduleNow (&RoutingProtocol::Start, this);
+}
+
+void
+RoutingProtocol::NotifyInterfaceUp (uint32_t i)
+{
+ NS_LOG_FUNCTION (this << m_ipv4->GetAddress (i, 0).GetLocal ());
+ Ptr<Ipv4L3Protocol> l3 = m_ipv4->GetObject<Ipv4L3Protocol> ();
+ if (l3->GetNAddresses (i) > 1)
+ {
+ NS_LOG_WARN ("AODV does not work with more then one address per each interface.");
+ }
+ Ipv4InterfaceAddress iface = l3->GetAddress (i, 0);
+ if (iface.GetLocal () == Ipv4Address ("127.0.0.1"))
+ return;
+
+ // Create a socket to listen only on this interface
+ Ptr<Socket> socket = Socket::CreateSocket (GetObject<Node> (),
+ UdpSocketFactory::GetTypeId ());
+ NS_ASSERT (socket != 0);
+ socket->SetRecvCallback (MakeCallback (&RoutingProtocol::RecvAodv, this));
+ socket->Bind (InetSocketAddress (iface.GetLocal (), AODV_PORT));
+ socket->Connect (InetSocketAddress (iface.GetBroadcast (), AODV_PORT));
+ socket->SetAttribute ("IpTtl", UintegerValue (1));
+ m_socketAddresses.insert (std::make_pair (socket, iface));
+
+ // Add local broadcast record to the routing table
+ Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (iface.GetLocal ()));
+ RoutingTableEntry rt (/*device=*/dev, /*dst=*/iface.GetBroadcast (), /*know seqno=*/true, /*seqno=*/0, /*iface=*/iface,
+ /*hops=*/1, /*next hop=*/iface.GetBroadcast (), /*lifetime=*/Simulator::GetMaximumSimulationTime ());
+ m_routingTable.AddRoute (rt);
+
+ // Allow neighbor manager use this interface for layer 2 feedback if possible
+ Ptr<WifiNetDevice> wifi = dev->GetObject<WifiNetDevice> ();
+ if (wifi == 0)
+ return;
+ Ptr<WifiMac> mac = wifi->GetMac ();
+ if (mac == 0)
+ return;
+
+ mac->TraceConnectWithoutContext ("TxErrHeader", m_nb.GetTxErrorCallback ());
+ m_nb.AddArpCache (l3->GetInterface (i)->GetArpCache ());
+}
+
+void
+RoutingProtocol::NotifyInterfaceDown (uint32_t i)
+{
+ NS_LOG_FUNCTION (this << m_ipv4->GetAddress (i, 0).GetLocal ());
+
+ // Disable layer 2 link state monitoring (if possible)
+ Ptr<Ipv4L3Protocol> l3 = m_ipv4->GetObject<Ipv4L3Protocol> ();
+ Ptr<NetDevice> dev = l3->GetNetDevice (i);
+ Ptr<WifiNetDevice> wifi = dev->GetObject<WifiNetDevice> ();
+ if (wifi != 0)
+ {
+ Ptr<WifiMac> mac = wifi->GetMac ()->GetObject<AdhocWifiMac> ();
+ if (mac != 0)
+ {
+ mac->TraceDisconnectWithoutContext ("TxErrHeader",
+ m_nb.GetTxErrorCallback ());
+ m_nb.DelArpCache (l3->GetInterface (i)->GetArpCache ());
+ }
+ }
+
+ // Close socket
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (m_ipv4->GetAddress (i, 0));
+ NS_ASSERT (socket);
+ socket->Close ();
+ m_socketAddresses.erase (socket);
+ if (m_socketAddresses.empty ())
+ {
+ NS_LOG_LOGIC ("No aodv interfaces");
+ m_htimer.Cancel ();
+ m_nb.Clear ();
+ m_routingTable.Clear ();
+ return;
+ }
+ m_routingTable.DeleteAllRoutesFromInterface (m_ipv4->GetAddress (i, 0));
+}
+
+void
+RoutingProtocol::NotifyAddAddress (uint32_t i, Ipv4InterfaceAddress address)
+{
+ NS_LOG_FUNCTION (this << " interface " << i << " address " << address);
+ Ptr<Ipv4L3Protocol> l3 = m_ipv4->GetObject<Ipv4L3Protocol> ();
+ if (!l3->IsUp (i))
+ return;
+ if (l3->GetNAddresses (i) == 1)
+ {
+ Ipv4InterfaceAddress iface = l3->GetAddress (i, 0);
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (iface);
+ if (!socket)
+ {
+ if (iface.GetLocal () == Ipv4Address ("127.0.0.1"))
+ return;
+ // Create a socket to listen only on this interface
+ Ptr<Socket> socket = Socket::CreateSocket (GetObject<Node> (),
+ UdpSocketFactory::GetTypeId ());
+ NS_ASSERT (socket != 0);
+ socket->SetRecvCallback (MakeCallback (&RoutingProtocol::RecvAodv,this));
+ socket->Bind (InetSocketAddress (iface.GetLocal (), AODV_PORT));
+ socket->Connect (InetSocketAddress (iface.GetBroadcast (), AODV_PORT));
+ m_socketAddresses.insert (std::make_pair (socket, iface));
+
+ // Add local broadcast record to the routing table
+ Ptr<NetDevice> dev = m_ipv4->GetNetDevice (
+ m_ipv4->GetInterfaceForAddress (iface.GetLocal ()));
+ RoutingTableEntry rt (/*device=*/dev, /*dst=*/iface.GetBroadcast (), /*know seqno=*/true,
+ /*seqno=*/0, /*iface=*/iface, /*hops=*/1,
+ /*next hop=*/iface.GetBroadcast (), /*lifetime=*/Simulator::GetMaximumSimulationTime ());
+ m_routingTable.AddRoute (rt);
+ }
+ }
+ else
+ {
+ NS_LOG_LOGIC ("AODV does not work with more then one address per each interface. Ignore added address");
+ }
+}
+
+void
+RoutingProtocol::NotifyRemoveAddress (uint32_t i, Ipv4InterfaceAddress address)
+{
+ NS_LOG_FUNCTION (this);
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (address);
+ if (socket)
+ {
+ m_routingTable.DeleteAllRoutesFromInterface (address);
+ m_socketAddresses.erase (socket);
+ Ptr<Ipv4L3Protocol> l3 = m_ipv4->GetObject<Ipv4L3Protocol> ();
+ if (l3->GetNAddresses (i))
+ {
+ Ipv4InterfaceAddress iface = l3->GetAddress (i, 0);
+ // Create a socket to listen only on this interface
+ Ptr<Socket> socket = Socket::CreateSocket (GetObject<Node> (),
+ UdpSocketFactory::GetTypeId ());
+ NS_ASSERT (socket != 0);
+ socket->SetRecvCallback (MakeCallback (&RoutingProtocol::RecvAodv, this));
+ socket->Bind (InetSocketAddress (iface.GetLocal (), AODV_PORT));
+ socket->Connect (InetSocketAddress (iface.GetBroadcast (), AODV_PORT));
+ m_socketAddresses.insert (std::make_pair (socket, iface));
+
+ // Add local broadcast record to the routing table
+ Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (iface.GetLocal ()));
+ RoutingTableEntry rt (/*device=*/dev, /*dst=*/iface.GetBroadcast (), /*know seqno=*/true, /*seqno=*/0, /*iface=*/iface,
+ /*hops=*/1, /*next hop=*/iface.GetBroadcast (), /*lifetime=*/Simulator::GetMaximumSimulationTime ());
+ m_routingTable.AddRoute (rt);
+ }
+ if (m_socketAddresses.empty ())
+ {
+ NS_LOG_LOGIC ("No aodv interfaces");
+ m_htimer.Cancel ();
+ m_nb.Clear ();
+ m_routingTable.Clear ();
+ return;
+ }
+ }
+ else
+ {
+ NS_LOG_LOGIC ("Remove address not participating in AODV operation");
+ }
+}
+
+bool
+RoutingProtocol::IsMyOwnAddress (Ipv4Address src)
+{
+ for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
+ m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
+ {
+ Ipv4InterfaceAddress iface = j->second;
+ if (src == iface.GetLocal ())
+ {
+ return true;
+ }
+ }
+ return false;
+}
+
+void
+RoutingProtocol::SendRequest (Ipv4Address dst)
+{
+ NS_LOG_FUNCTION ( this << dst);
+ // A node SHOULD NOT originate more than RREQ_RATELIMIT RREQ messages per second.
+ if (m_rreqCount == RreqRateLimit)
+ {
+ Simulator::Schedule (m_rreqRateLimitTimer.GetDelayLeft () + MicroSeconds (100),
+ &RoutingProtocol::SendRequest, this, dst);
+ return;
+ }
+ else
+ m_rreqCount++;
+ // Create RREQ header
+ RreqHeader rreqHeader;
+ rreqHeader.SetDst (dst);
+
+ RoutingTableEntry rt;
+ if (m_routingTable.LookupRoute (dst, rt))
+ {
+ rreqHeader.SetHopCount (rt.GetHop ());
+ if (rt.GetValidSeqNo ())
+ rreqHeader.SetDstSeqno (rt.GetSeqNo ());
+ else
+ rreqHeader.SetUnknownSeqno (true);
+ rt.SetFlag (IN_SEARCH);
+ m_routingTable.AddRoute (rt);
+ }
+ else
+ {
+ rreqHeader.SetUnknownSeqno (true);
+ RoutingTableEntry newEntry;
+ newEntry.SetFlag (IN_SEARCH);
+ m_routingTable.AddRoute (newEntry);
+ }
+
+ if (GratuitousReply)
+ rreqHeader.SetGratiousRrep (true);
+ if (DestinationOnly)
+ rreqHeader.SetDestinationOnly (true);
+
+ m_seqNo++;
+ rreqHeader.SetOriginSeqno (m_seqNo);
+ m_requestId++;
+ rreqHeader.SetId (m_requestId);
+ rreqHeader.SetHopCount (0);
+
+ // Send RREQ as subnet directed broadcast from each interface used by aodv
+ for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
+ m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
+ {
+ Ptr<Socket> socket = j->first;
+ Ipv4InterfaceAddress iface = j->second;
+
+ rreqHeader.SetOrigin (iface.GetLocal ());
+ m_rreqIdCache.IsDuplicate (iface.GetLocal (), m_requestId);
+
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (rreqHeader);
+ TypeHeader tHeader (AODVTYPE_RREQ);
+ packet->AddHeader (tHeader);
+ socket->Send (packet);
+ }
+ ScheduleRreqRetry (dst);
+ if (EnableHello)
+ {
+ m_htimer.Cancel ();
+ m_htimer.Schedule (HelloInterval - Scalar (0.01) * MilliSeconds (UniformVariable ().GetInteger (0, 10)));
+ }
+}
+
+void
+RoutingProtocol::ScheduleRreqRetry (Ipv4Address dst)
+{
+ if (m_addressReqTimer.find (dst) == m_addressReqTimer.end ())
+ {
+ Timer timer (Timer::CANCEL_ON_DESTROY);
+ m_addressReqTimer[dst] = timer;
+ }
+ m_addressReqTimer[dst].SetFunction (&RoutingProtocol::RouteRequestTimerExpire, this);
+ m_addressReqTimer[dst].Remove ();
+ m_addressReqTimer[dst].SetArguments (dst);
+ RoutingTableEntry rt;
+ m_routingTable.LookupRoute (dst, rt);
+ rt.IncrementRreqCnt ();
+ m_routingTable.Update (rt);
+ m_addressReqTimer[dst].Schedule (Scalar (rt.GetRreqCnt ()) * NetTraversalTime);
+}
+
+void
+RoutingProtocol::RecvAodv (Ptr<Socket> socket)
+{
+ NS_LOG_FUNCTION (this);
+ Address sourceAddress;
+ Ptr<Packet> packet = socket->RecvFrom (sourceAddress);
+ InetSocketAddress inetSourceAddr = InetSocketAddress::ConvertFrom (sourceAddress);
+ Ipv4Address sender = inetSourceAddr.GetIpv4 ();
+ Ipv4Address receiver = m_socketAddresses[socket].GetLocal ();
+ NS_LOG_DEBUG ("AODV node " << this << " received a AODV packet from " << sender << " to " << receiver);
+
+ UpdateRouteToNeighbor (sender, receiver);
+ TypeHeader tHeader (AODVTYPE_RREQ);
+ packet->RemoveHeader (tHeader);
+ if (!tHeader.IsValid ())
+ {
+ NS_LOG_DEBUG ("AODV message " << packet->GetUid() << " with unknown type received: " << tHeader.Get() << ". Drop");
+ return; // drop
+ }
+ switch (tHeader.Get ())
+ {
+ case AODVTYPE_RREQ:
+ {
+ RecvRequest (packet, receiver, sender);
+ break;
+ }
+ case AODVTYPE_RREP:
+ {
+ RecvReply (packet, receiver, sender);
+ break;
+ }
+ case AODVTYPE_RERR:
+ {
+ RecvError (packet, sender);
+ break;
+ }
+ case AODVTYPE_RREP_ACK:
+ {
+ RecvReplyAck (sender);
+ break;
+ }
+ }
+}
+
+bool
+RoutingProtocol::UpdateRouteLifeTime (Ipv4Address addr, Time lifetime)
+{
+ RoutingTableEntry rt;
+ if (m_routingTable.LookupRoute (addr, rt))
+ {
+ rt.SetFlag (VALID);
+ rt.SetRreqCnt (0);
+ rt.SetLifeTime (std::max (lifetime, rt.GetLifeTime ()));
+ m_routingTable.Update (rt);
+ return true;
+ }
+ return false;
+}
+
+void
+RoutingProtocol::UpdateRouteToNeighbor (Ipv4Address sender, Ipv4Address receiver)
+{
+ NS_LOG_FUNCTION (this << "sender " << sender << " receiver " << receiver);
+ RoutingTableEntry toNeighbor;
+ if (!m_routingTable.LookupRoute (sender, toNeighbor))
+ {
+ Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver));
+ RoutingTableEntry newEntry (/*device=*/dev, /*dst=*/sender, /*know seqno=*/false, /*seqno=*/0,
+ /*iface=*/m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0),
+ /*hops=*/1, /*next hop=*/sender, /*lifetime=*/ActiveRouteTimeout);
+ m_routingTable.AddRoute (newEntry);
+ }
+ else
+ {
+ Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver));
+ RoutingTableEntry newEntry (/*device=*/dev, /*dst=*/sender, /*know seqno=*/false, /*seqno=*/0,
+ /*iface=*/m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0),
+ /*hops=*/1, /*next hop=*/sender, /*lifetime=*/std::max (ActiveRouteTimeout, toNeighbor.GetLifeTime ()));
+ m_routingTable.Update (newEntry);
+ }
+}
+
+void
+RoutingProtocol::RecvRequest (Ptr<Packet> p, Ipv4Address receiver, Ipv4Address src)
+{
+ NS_LOG_FUNCTION (this);
+ RreqHeader rreqHeader;
+ p->RemoveHeader (rreqHeader);
+
+ // A node ignores all RREQs received from any node in its blacklist
+ RoutingTableEntry toPrev;
+ if (m_routingTable.LookupRoute (src, toPrev))
+ {
+ if (toPrev.IsUnidirectional ())
+ return;
+ }
+
+ uint32_t id = rreqHeader.GetId ();
+ Ipv4Address origin = rreqHeader.GetOrigin ();
+
+ /*
+ * Node checks to determine whether it has received a RREQ with the same Originator IP Address and RREQ ID.
+ * If such a RREQ has been received, the node silently discards the newly received RREQ.
+ */
+ if (m_rreqIdCache.IsDuplicate (origin, id))
+ {
+ return;
+ }
+
+ // Increment RREQ hop count
+ uint8_t hop = rreqHeader.GetHopCount () + 1;
+ rreqHeader.SetHopCount (hop);
+
+ /*
+ * When the reverse route is created or updated, the following actions on the route are also carried out:
+ * 1. the Originator Sequence Number from the RREQ is compared to the corresponding destination sequence number
+ * in the route table entry and copied if greater than the existing value there
+ * 2. the valid sequence number field is set to true;
+ * 3. the next hop in the routing table becomes the node from which the RREQ was received
+ * 4. the hop count is copied from the Hop Count in the RREQ message;
+ * 5. the Lifetime is set to be the maximum of (ExistingLifetime, MinimalLifetime), where
+ * MinimalLifetime = current time + 2*NetTraversalTime - 2*HopCount*NodeTraversalTime
+ */
+ RoutingTableEntry toOrigin;
+ if (!m_routingTable.LookupRoute (origin, toOrigin))
+ {
+ Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver));
+ RoutingTableEntry newEntry (/*device=*/dev, /*dst=*/origin, /*validSeno=*/true, /*seqNo=*/rreqHeader.GetOriginSeqno (),
+ /*iface=*/m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0), /*hops=*/hop,
+ /*nextHop*/src, /*timeLife=*/Scalar (2) * NetTraversalTime - Scalar (2 * hop) * NodeTraversalTime);
+ m_routingTable.AddRoute (newEntry);
+ }
+ else
+ {
+ if (toOrigin.GetValidSeqNo ())
+ {
+ if (int32_t (rreqHeader.GetOriginSeqno ()) - int32_t (toOrigin.GetSeqNo ()) > 0)
+ toOrigin.SetSeqNo (rreqHeader.GetOriginSeqno ());
+ }
+ else
+ toOrigin.SetSeqNo (rreqHeader.GetOriginSeqno ());
+ toOrigin.SetValidSeqNo (true);
+ toOrigin.SetNextHop (src);
+ toOrigin.SetOutputDevice (m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver)));
+ toOrigin.SetInterface (m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0));
+ toOrigin.SetHop (hop);
+ toOrigin.SetLifeTime (std::max (Scalar (2) * NetTraversalTime - Scalar (2 * hop) * NodeTraversalTime, toOrigin.GetLifeTime ()));
+ m_routingTable.Update (toOrigin);
+ }
+ NS_LOG_LOGIC (receiver << " receive RREQ to destination " << rreqHeader.GetDst ());
+
+ // A node generates a RREP if either:
+ // (i) it is itself the destination,
+ if (IsMyOwnAddress (rreqHeader.GetDst ()))
+ {
+ m_routingTable.LookupRoute (origin, toOrigin);
+ SendReply (rreqHeader, toOrigin);
+ return;
+ }
+ /*
+ * (ii) or it has an active route to the destination, the destination sequence number in the node's existing route table entry for the destination
+ * is valid and greater than or equal to the Destination Sequence Number of the RREQ, and the "destination only" flag is NOT set.
+ */
+ RoutingTableEntry toDst;
+ Ipv4Address dst = rreqHeader.GetDst ();
+ if (m_routingTable.LookupRoute (dst, toDst))
+ {
+ /*
+ * The Destination Sequence number for the requested destination is set to the maximum of the corresponding value
+ * received in the RREQ message, and the destination sequence value currently maintained by the node for the requested destination.
+ * However, the forwarding node MUST NOT modify its maintained value for the destination sequence number, even if the value
+ * received in the incoming RREQ is larger than the value currently maintained by the forwarding node.
+ */
+ if (rreqHeader.GetUnknownSeqno () || ( (int32_t (toDst.GetSeqNo ()) - int32_t (rreqHeader.GetDstSeqno ()) > 0)
+ && toDst.GetValidSeqNo () ))
+ {
+ if (!rreqHeader.GetDestinationOnly () && toDst.GetFlag() == VALID)
+ {
+ m_routingTable.LookupRoute (origin, toOrigin);
+ SendReplyByIntermediateNode (toDst, toOrigin, rreqHeader.GetGratiousRrep ());
+ return;
+ }
+ rreqHeader.SetDstSeqno (toDst.GetSeqNo ());
+ rreqHeader.SetUnknownSeqno (false);
+ }
+ }
+
+ for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
+ m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
+ {
+ Ptr<Socket> socket = j->first;
+ Ipv4InterfaceAddress iface = j->second;
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (rreqHeader);
+ TypeHeader tHeader (AODVTYPE_RREQ);
+ packet->AddHeader (tHeader);
+ socket->Send (packet);
+ }
+
+ if (EnableHello)
+ {
+ m_htimer.Cancel ();
+ m_htimer.Schedule (HelloInterval - Scalar(0.1)*MilliSeconds(UniformVariable().GetInteger (0, 10)));
+ }
+}
+
+void
+RoutingProtocol::SendReply (RreqHeader const & rreqHeader, RoutingTableEntry const & toOrigin)
+{
+ NS_LOG_FUNCTION (this << toOrigin.GetDestination ());
+ /*
+ * Destination node MUST increment its own sequence number by one if the sequence number in the RREQ packet is equal to that
+ * incremented value. Otherwise, the destination does not change its sequence number before generating the RREP message.
+ */
+ if (!rreqHeader.GetUnknownSeqno () && (rreqHeader.GetDstSeqno () == m_seqNo + 1))
+ m_seqNo++;
+ RrepHeader rrepHeader ( /*prefixSize=*/0, /*hops=*/0, /*dst=*/rreqHeader.GetDst (),
+ /*dstSeqNo=*/m_seqNo, /*origin=*/toOrigin.GetDestination (), /*lifeTime=*/MyRouteTimeout);
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (rrepHeader);
+ TypeHeader tHeader (AODVTYPE_RREP);
+ packet->AddHeader (tHeader);
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (toOrigin.GetInterface ());
+ NS_ASSERT (socket);
+ socket->SendTo (packet, 0, InetSocketAddress (toOrigin.GetNextHop (), AODV_PORT));
+}
+
+void
+RoutingProtocol::SendReplyByIntermediateNode (RoutingTableEntry & toDst, RoutingTableEntry & toOrigin, bool gratRep)
+{
+ NS_LOG_FUNCTION(this);
+ RrepHeader rrepHeader (/*prefix size=*/0, /*hops=*/toDst.GetHop (), /*dst=*/toDst.GetDestination (), /*dst seqno=*/toDst.GetSeqNo (),
+ /*origin=*/toOrigin.GetDestination (), /*lifetime=*/toDst.GetLifeTime ());
+ /* If the node we received a RREQ for is a neighbor we are
+ * probably facing a unidirectional link... Better request a RREP-ack
+ */
+ if (toDst.GetHop () == 1)
+ {
+ rrepHeader.SetAckRequired (true);
+ RoutingTableEntry toNextHop;
+ m_routingTable.LookupRoute (toOrigin.GetNextHop (), toNextHop);
+ toNextHop.m_ackTimer.SetFunction (&RoutingProtocol::AckTimerExpire, this);
+ toNextHop.m_ackTimer.SetArguments (toNextHop.GetDestination (), BlackListTimeout);
+ toNextHop.m_ackTimer.SetDelay (NextHopWait);
+ }
+ toDst.InsertPrecursor (toOrigin.GetNextHop ());
+ toOrigin.InsertPrecursor (toDst.GetNextHop ());
+ m_routingTable.Update (toDst);
+ m_routingTable.Update (toOrigin);
+
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (rrepHeader);
+ TypeHeader tHeader (AODVTYPE_RREP);
+ packet->AddHeader (tHeader);
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (toOrigin.GetInterface ());
+ NS_ASSERT (socket);
+ socket->SendTo (packet, 0, InetSocketAddress (toOrigin.GetNextHop (), AODV_PORT));
+
+ // Generating gratuitous RREPs
+ if (gratRep)
+ {
+ RrepHeader gratRepHeader (/*prefix size=*/0, /*hops=*/toOrigin.GetHop (), /*dst=*/toOrigin.GetDestination (),
+ /*dst seqno=*/toOrigin.GetSeqNo (), /*origin=*/toDst.GetDestination (),
+ /*lifetime=*/toOrigin.GetLifeTime ());
+ Ptr<Packet> packetToDst = Create<Packet> ();
+ packetToDst->AddHeader (gratRepHeader);
+ TypeHeader type (AODVTYPE_RREP);
+ packetToDst->AddHeader (type);
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (toDst.GetInterface ());
+ NS_ASSERT (socket);
+ NS_LOG_LOGIC ("Send gratuitous RREP " << packet->GetUid());
+ socket->SendTo (packetToDst, 0, InetSocketAddress (toDst.GetNextHop (), AODV_PORT));
+ }
+}
+
+void
+RoutingProtocol::SendReplyAck (Ipv4Address neighbor)
+{
+ NS_LOG_FUNCTION (this << " to " << neighbor);
+ RrepAckHeader h;
+ TypeHeader typeHeader (AODVTYPE_RREP_ACK);
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (h);
+ packet->AddHeader (typeHeader);
+ RoutingTableEntry toNeighbor;
+ m_routingTable.LookupRoute (neighbor, toNeighbor);
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (toNeighbor.GetInterface ());
+ NS_ASSERT (socket);
+ socket->SendTo (packet, 0, InetSocketAddress (neighbor, AODV_PORT));
+}
+
+void
+RoutingProtocol::RecvReply (Ptr<Packet> p, Ipv4Address receiver, Ipv4Address sender)
+{
+ NS_LOG_FUNCTION(this << " src " << sender);
+ RrepHeader rrepHeader;
+ p->RemoveHeader (rrepHeader);
+ Ipv4Address dst = rrepHeader.GetDst ();
+ NS_LOG_LOGIC("RREP destination " << dst << " RREP origin " << rrepHeader.GetOrigin());
+
+ uint8_t hop = rrepHeader.GetHopCount () + 1;
+ rrepHeader.SetHopCount (hop);
+
+ // If RREP is Hello message
+ if (dst == rrepHeader.GetOrigin ())
+ {
+ ProcessHello (rrepHeader, receiver);
+ return;
+ }
+
+ /*
+ * If the route table entry to the destination is created or updated, then the following actions occur:
+ * - the route is marked as active,
+ * - the destination sequence number is marked as valid,
+ * - the next hop in the route entry is assigned to be the node from which the RREP is received,
+ * which is indicated by the source IP address field in the IP header,
+ * - the hop count is set to the value of the hop count from RREP message + 1
+ * - the expiry time is set to the current time plus the value of the Lifetime in the RREP message,
+ * - and the destination sequence number is the Destination Sequence Number in the RREP message.
+ */
+ Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver));
+ RoutingTableEntry newEntry (/*device=*/dev, /*dst=*/dst, /*validSeqNo=*/true, /*seqno=*/rrepHeader.GetDstSeqno (),
+ /*iface=*/m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0),/*hop=*/hop,
+ /*nextHop=*/sender, /*lifeTime=*/rrepHeader.GetLifeTime ());
+ RoutingTableEntry toDst;
+ if (m_routingTable.LookupRoute (dst, toDst))
+ {
+ /*
+ * The existing entry is updated only in the following circumstances:
+ * (i) the sequence number in the routing table is marked as invalid in route table entry.
+ */
+ if (!toDst.GetValidSeqNo ())
+ {
+ m_routingTable.Update (newEntry);
+ }
+ // (ii)the Destination Sequence Number in the RREP is greater than the node's copy of the destination sequence number and the known value is valid,
+ else if ((int32_t (rrepHeader.GetDstSeqno ()) - int32_t (toDst.GetSeqNo ())) > 0)
+ {
+ m_routingTable.Update (newEntry);
+ }
+ else
+ {
+ // (iii) the sequence numbers are the same, but the route is marked as inactive.
+ if ((rrepHeader.GetDstSeqno () == toDst.GetSeqNo ()) && (toDst.GetFlag () != VALID))
+ {
+ m_routingTable.Update (newEntry);
+ }
+ // (iv) the sequence numbers are the same, and the New Hop Count is smaller than the hop count in route table entry.
+ else if ((rrepHeader.GetDstSeqno () == toDst.GetSeqNo ()) && (hop < toDst.GetHop ()))
+ {
+ m_routingTable.Update (newEntry);
+ }
+ }
+ }
+ else
+ {
+ // The forward route for this destination is created if it does not already exist.
+ NS_LOG_LOGIC ("add new route");
+ m_routingTable.AddRoute (newEntry);
+ }
+ // Acknowledge receipt of the RREP by sending a RREP-ACK message back
+ if (rrepHeader.GetAckRequired ())
+ {
+ SendReplyAck (sender);
+ rrepHeader.SetAckRequired (false);
+ }
+ NS_LOG_LOGIC ("receiver " << receiver << " origin " << rrepHeader.GetOrigin ());
+ if (IsMyOwnAddress (rrepHeader.GetOrigin ()))
+ {
+ if (toDst.GetFlag () == IN_SEARCH)
+ {
+ m_routingTable.Update (newEntry);
+ m_addressReqTimer[dst].Remove ();
+ m_addressReqTimer.erase (dst);
+ }
+ SendPacketFromQueue (rrepHeader.GetDst (), newEntry.GetRoute ());
+ return;
+ }
+
+ RoutingTableEntry toOrigin;
+ if (!m_routingTable.LookupRoute (rrepHeader.GetOrigin (), toOrigin))
+ {
+ return; // Impossible! drop.
+ }
+ toOrigin.SetLifeTime (std::max (ActiveRouteTimeout, toOrigin.GetLifeTime ()));
+ m_routingTable.Update (toOrigin);
+
+ // Update information about precursors
+ m_routingTable.LookupRoute (rrepHeader.GetDst (), toDst);
+ toDst.InsertPrecursor (toOrigin.GetNextHop ());
+ m_routingTable.Update (toDst);
+
+ RoutingTableEntry toNextHopToDst;
+ m_routingTable.LookupRoute (toDst.GetNextHop (), toNextHopToDst);
+ toNextHopToDst.InsertPrecursor (toOrigin.GetNextHop ());
+ m_routingTable.Update (toNextHopToDst);
+
+ toOrigin.InsertPrecursor (toDst.GetNextHop ());
+ m_routingTable.Update (toOrigin);
+
+ RoutingTableEntry toNextHopToOrigin;
+ m_routingTable.LookupRoute (toOrigin.GetNextHop (), toNextHopToOrigin);
+ toNextHopToOrigin.InsertPrecursor (toDst.GetNextHop ());
+ m_routingTable.Update (toNextHopToOrigin);
+
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (rrepHeader);
+ TypeHeader tHeader (AODVTYPE_RREP);
+ packet->AddHeader (tHeader);
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (toOrigin.GetInterface ());
+ NS_ASSERT (socket);
+ socket->SendTo (packet, 0, InetSocketAddress (toOrigin.GetNextHop (), AODV_PORT));
+}
+
+void
+RoutingProtocol::RecvReplyAck (Ipv4Address neighbor)
+{
+ NS_LOG_FUNCTION (this);
+ RoutingTableEntry rt;
+ if(m_routingTable.LookupRoute(neighbor, rt))
+ {
+ rt.m_ackTimer.Cancel ();
+ rt.SetFlag (VALID);
+ m_routingTable.Update(rt);
+ }
+}
+
+void
+RoutingProtocol::ProcessHello (RrepHeader const & rrepHeader, Ipv4Address receiver )
+{
+ NS_LOG_FUNCTION(this << "from " << rrepHeader.GetDst ());
+ /*
+ * Whenever a node receives a Hello message from a neighbor, the node
+ * SHOULD make sure that it has an active route to the neighbor, and
+ * create one if necessary.
+ */
+ RoutingTableEntry toNeighbor;
+ if (!m_routingTable.LookupRoute (rrepHeader.GetDst (), toNeighbor))
+ {
+ Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver));
+ RoutingTableEntry newEntry (/*device=*/dev, /*dst=*/rrepHeader.GetDst (), /*validSeqNo=*/true, /*seqno=*/rrepHeader.GetDstSeqno (),
+ /*iface=*/m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0),
+ /*hop=*/1, /*nextHop=*/rrepHeader.GetDst (), /*lifeTime=*/rrepHeader.GetLifeTime ());
+ m_routingTable.AddRoute (newEntry);
+ }
+ else
+ {
+ toNeighbor.SetLifeTime (std::max (Scalar (AllowedHelloLoss) * HelloInterval, toNeighbor.GetLifeTime ()));
+ toNeighbor.SetSeqNo (rrepHeader.GetDstSeqno ());
+ toNeighbor.SetValidSeqNo (true);
+ toNeighbor.SetFlag (VALID);
+ toNeighbor.SetOutputDevice (m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver)));
+ toNeighbor.SetInterface (m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0));
+ m_routingTable.Update (toNeighbor);
+ }
+ if (EnableHello)
+ {
+ m_nb.Update (rrepHeader.GetDst (), Scalar (AllowedHelloLoss) * HelloInterval);
+ }
+}
+
+void
+RoutingProtocol::RecvError (Ptr<Packet> p, Ipv4Address src )
+{
+ NS_LOG_FUNCTION (this << " from " << src);
+ RerrHeader rerrHeader;
+ p->RemoveHeader (rerrHeader);
+ std::map<Ipv4Address, uint32_t> dstWithNextHopSrc;
+ std::map<Ipv4Address, uint32_t> unreachable;
+ m_routingTable.GetListOfDestinationWithNextHop (src, dstWithNextHopSrc);
+ std::pair<Ipv4Address, uint32_t> un;
+ while (rerrHeader.RemoveUnDestination (un))
+ {
+ if (m_nb.IsNeighbor (un.first))
+ SendRerrWhenBreaksLinkToNextHop (un.first);
+ else
+ {
+ for (std::map<Ipv4Address, uint32_t>::const_iterator i =
+ dstWithNextHopSrc.begin (); i != dstWithNextHopSrc.end (); ++i)
+ {
+ if (i->first == un.first)
+ {
+ Ipv4Address dst = un.first;
+ unreachable.insert (un);
+ }
+ }
+ }
+ }
+
+ std::vector<Ipv4Address> precursors;
+ for (std::map<Ipv4Address, uint32_t>::const_iterator i = unreachable.begin ();
+ i != unreachable.end ();)
+ {
+ if (!rerrHeader.AddUnDestination (i->first, i->second))
+ {
+ TypeHeader typeHeader (AODVTYPE_RERR);
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (rerrHeader);
+ packet->AddHeader (typeHeader);
+ SendRerrMessage (packet, precursors);
+ rerrHeader.Clear ();
+ }
+ else
+ {
+ RoutingTableEntry toDst;
+ m_routingTable.LookupRoute (i->first, toDst);
+ toDst.GetPrecursors (precursors);
+ ++i;
+ }
+ }
+ if (rerrHeader.GetDestCount () != 0)
+ {
+ TypeHeader typeHeader (AODVTYPE_RERR);
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (rerrHeader);
+ packet->AddHeader (typeHeader);
+ SendRerrMessage (packet, precursors);
+ }
+ m_routingTable.InvalidateRoutesWithDst (unreachable);
+}
+
+void
+RoutingProtocol::RouteRequestTimerExpire (Ipv4Address dst)
+{
+ NS_LOG_LOGIC(this);
+ RoutingTableEntry toDst;
+ m_routingTable.LookupRoute (dst, toDst);
+ if (toDst.GetFlag () == VALID)
+ {
+ SendPacketFromQueue (dst, toDst.GetRoute ());
+ NS_LOG_LOGIC ("route to " << dst << " found");
+ return;
+ }
+ /*
+ * If a route discovery has been attempted RreqRetries times at the maximum TTL without
+ * receiving any RREP, all data packets destined for the corresponding destination SHOULD be
+ * dropped from the buffer and a Destination Unreachable message SHOULD be delivered to the application.
+ */
+ if (toDst.GetRreqCnt () == RreqRetries)
+ {
+ NS_LOG_LOGIC("route discovery to " << dst << " has been attempted RreqRetries times");
+ m_addressReqTimer.erase (dst);
+ m_routingTable.DeleteRoute (dst);
+ NS_LOG_DEBUG ("Route not found. Drop packet with dst " << dst);
+ m_queue.DropPacketWithDst (dst);
+ return;
+ }
+
+ if (toDst.GetFlag () == IN_SEARCH)
+ {
+ NS_LOG_LOGIC ("Send new RREQ to " << dst << " ttl " << NetDiameter);
+ SendRequest (dst);
+ }
+ else
+ {
+ NS_LOG_DEBUG ("Route down. Stop search. Drop packet with destination " << dst);
+ m_addressReqTimer.erase(dst);
+ m_routingTable.DeleteRoute(dst);
+ m_queue.DropPacketWithDst(dst);
+ }
+}
+
+void
+RoutingProtocol::HelloTimerExpire ()
+{
+ NS_LOG_FUNCTION(this);
+ SendHello ();
+ m_htimer.Cancel ();
+ Time t = Scalar(0.01)*MilliSeconds(UniformVariable().GetInteger (0, 100));
+ m_htimer.Schedule (HelloInterval - t);
+}
+
+void
+RoutingProtocol::RreqRateLimitTimerExpire ()
+{
+ m_rreqCount = 0;
+ m_rreqRateLimitTimer.Schedule (Seconds (1));
+}
+
+void
+RoutingProtocol::AckTimerExpire (Ipv4Address neighbor, Time blacklistTimeout)
+{
+ NS_LOG_FUNCTION(this);
+ m_routingTable.MarkLinkAsUnidirectional (neighbor, blacklistTimeout);
+}
+
+void
+RoutingProtocol::SendHello ()
+{
+ NS_LOG_FUNCTION(this);
+ /* Broadcast a RREP with TTL = 1 with the RREP message fields set as follows:
+ * Destination IP Address The node's IP address.
+ * Destination Sequence Number The node's latest sequence number.
+ * Hop Count 0
+ * Lifetime AllowedHelloLoss * HelloInterval
+ */
+ for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j = m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
+ {
+ Ptr<Socket> socket = j->first;
+ Ipv4InterfaceAddress iface = j->second;
+ RrepHeader helloHeader (/*prefix size=*/0, /*hops=*/0, /*dst=*/iface.GetLocal (), /*dst seqno=*/m_seqNo,
+ /*origin=*/iface.GetLocal (),/*lifetime=*/Scalar (AllowedHelloLoss) * HelloInterval);
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (helloHeader);
+ TypeHeader tHeader (AODVTYPE_RREP);
+ packet->AddHeader (tHeader);
+ socket->Send (packet);
+ }
+}
+
+void
+RoutingProtocol::SendPacketFromQueue (Ipv4Address dst, Ptr<Ipv4Route> route)
+{
+ NS_LOG_FUNCTION(this);
+ QueueEntry queueEntry;
+ while (m_queue.Dequeue (dst, queueEntry))
+ {
+ UnicastForwardCallback ucb = queueEntry.GetUnicastForwardCallback ();
+ ucb (route, queueEntry.GetPacket (), queueEntry.GetIpv4Header ());
+ }
+}
+
+void
+RoutingProtocol::Send (Ptr<Ipv4Route> route, Ptr<const Packet> packet,
+ const Ipv4Header & header)
+{
+ NS_LOG_FUNCTION (this << packet->GetUid() << (uint16_t) header.GetProtocol());
+ Ptr<Ipv4L3Protocol> l3 = m_ipv4->GetObject<Ipv4L3Protocol> ();
+ NS_ASSERT(l3 != 0);
+ Ptr<Packet> p = packet->Copy ();
+ l3->Send (p, route->GetSource (), header.GetDestination (),
+ header.GetProtocol (), route);
+}
+
+void
+RoutingProtocol::SendRerrWhenBreaksLinkToNextHop (Ipv4Address nextHop)
+{
+ NS_LOG_FUNCTION (this << nextHop);
+ RerrHeader rerrHeader;
+ std::vector<Ipv4Address> precursors;
+ std::map<Ipv4Address, uint32_t> unreachable;
+
+ RoutingTableEntry toNextHop;
+ if (!m_routingTable.LookupRoute (nextHop, toNextHop))
+ return;
+ toNextHop.GetPrecursors (precursors);
+ rerrHeader.AddUnDestination (nextHop, toNextHop.GetSeqNo ());
+ m_routingTable.GetListOfDestinationWithNextHop (nextHop, unreachable);
+ for (std::map<Ipv4Address, uint32_t>::const_iterator i = unreachable.begin (); i
+ != unreachable.end ();)
+ {
+ if (!rerrHeader.AddUnDestination (i->first, i->second))
+ {
+ NS_LOG_LOGIC ("Send RERR message with maximum size.");
+ TypeHeader typeHeader (AODVTYPE_RERR);
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (rerrHeader);
+ packet->AddHeader (typeHeader);
+ SendRerrMessage (packet, precursors);
+ rerrHeader.Clear ();
+ }
+ else
+ {
+ RoutingTableEntry toDst;
+ m_routingTable.LookupRoute (i->first, toDst);
+ toDst.GetPrecursors (precursors);
+ ++i;
+ }
+ }
+ if (rerrHeader.GetDestCount () != 0)
+ {
+ TypeHeader typeHeader (AODVTYPE_RERR);
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (rerrHeader);
+ packet->AddHeader (typeHeader);
+ SendRerrMessage (packet, precursors);
+ }
+ unreachable.insert (std::make_pair (nextHop, toNextHop.GetSeqNo ()));
+ m_routingTable.InvalidateRoutesWithDst (unreachable);
+}
+
+void
+RoutingProtocol::SendRerrWhenNoRouteToForward (Ipv4Address dst,
+ uint32_t dstSeqNo, Ipv4Address origin)
+{
+ NS_LOG_FUNCTION (this);
+ RerrHeader rerrHeader;
+ rerrHeader.AddUnDestination (dst, dstSeqNo);
+ RoutingTableEntry toOrigin;
+ Ptr<Packet> packet = Create<Packet> ();
+ packet->AddHeader (rerrHeader);
+ packet->AddHeader (TypeHeader (AODVTYPE_RERR));
+ if (m_routingTable.LookupRoute (origin, toOrigin))
+ {
+ if (toOrigin.GetFlag () == VALID)
+ {
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (
+ toOrigin.GetInterface ());
+ NS_ASSERT (socket);
+ NS_LOG_LOGIC ("Unicast RERR to the source of the data transmission");
+ socket->SendTo (packet, 0, InetSocketAddress (toOrigin.GetNextHop (), AODV_PORT));
+ }
+
+ }
+ else
+ {
+ for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator i =
+ m_socketAddresses.begin (); i != m_socketAddresses.end (); ++i)
+ {
+ Ptr<Socket> socket = i->first;
+ Ipv4InterfaceAddress iface = i->second;
+ NS_ASSERT (socket);
+ NS_LOG_LOGIC ("Broadcast RERR message from interface " << iface.GetLocal());
+ socket->Send (packet);
+ }
+ }
+}
+
+void
+RoutingProtocol::SendRerrMessage (Ptr<Packet> packet, std::vector<Ipv4Address> precursors)
+{
+ NS_LOG_FUNCTION(this);
+
+ if (precursors.empty ())
+ {
+ NS_LOG_LOGIC ("No precursors");
+ return;
+ }
+ // If there is only one precursor, RERR SHOULD be unicast toward that precursor
+ if (precursors.size () == 1)
+ {
+ RoutingTableEntry toPrecursor;
+ if (!m_routingTable.LookupRoute (precursors.front (), toPrecursor))
+ return;
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (toPrecursor.GetInterface ());
+ NS_ASSERT (socket);
+ if (toPrecursor.GetFlag () == VALID)
+ {
+ NS_LOG_LOGIC ("one precursor => unicast RERR to " << toPrecursor.GetDestination() << " from " << toPrecursor.GetInterface ().GetLocal ());
+ socket->SendTo (packet, 0, InetSocketAddress (precursors.front (), AODV_PORT));
+ }
+ else
+ NS_LOG_LOGIC ("One precursor, but no valid route to this precursor");
+ return;
+ }
+
+ // Should only transmit RERR on those interfaces which have precursor nodes for the broken route
+ std::vector<Ipv4InterfaceAddress> ifaces;
+ RoutingTableEntry toPrecursor;
+ for (std::vector<Ipv4Address>::const_iterator i = precursors.begin (); i
+ != precursors.end (); ++i)
+ {
+ if (!m_routingTable.LookupRoute (*i, toPrecursor))
+ break;
+ bool result = true;
+ for (std::vector<Ipv4InterfaceAddress>::const_iterator i =
+ ifaces.begin (); i != ifaces.end (); ++i)
+ {
+ if (*i == toPrecursor.GetInterface ())
+ {
+ result = false;
+ break;
+ }
+ }
+ if (result)
+ ifaces.push_back (toPrecursor.GetInterface ());
+ }
+
+ for (std::vector<Ipv4InterfaceAddress>::const_iterator i = ifaces.begin (); i != ifaces.end (); ++i)
+ {
+ Ptr<Socket> socket = FindSocketWithInterfaceAddress (*i);
+ NS_ASSERT (socket);
+ NS_LOG_LOGIC ("Broadcast RERR message from interface " << i->GetLocal());
+ socket->Send (packet);
+ }
+
+}
+
+Ptr<Socket>
+RoutingProtocol::FindSocketWithInterfaceAddress (Ipv4InterfaceAddress addr ) const
+{
+ for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
+ m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
+ {
+ Ptr<Socket> socket = j->first;
+ Ipv4InterfaceAddress iface = j->second;
+ if (iface == addr)
+ return socket;
+ }
+ Ptr<Socket> socket;
+ return socket;
+}
+
+void
+RoutingProtocol::Drop(Ptr<const Packet> packet, const Ipv4Header & header, Socket::SocketErrno err)
+{
+ NS_LOG_DEBUG (this <<" drop own packet " << packet->GetUid() << " to " << header.GetDestination () << " from queue. Error " << err);
+}
+
+}
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-routing-protocol.h Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,253 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+#ifndef AODVROUTINGPROTOCOL_H
+#define AODVROUTINGPROTOCOL_H
+
+#include "aodv-rtable.h"
+#include "aodv-rqueue.h"
+#include "aodv-packet.h"
+#include "aodv-neighbor.h"
+#include "aodv-dpd.h"
+#include "ns3/node.h"
+#include "ns3/ipv4-routing-protocol.h"
+#include "ns3/ipv4-interface.h"
+#include "ns3/ipv4-l3-protocol.h"
+#include <map>
+
+namespace ns3
+{
+namespace aodv
+{
+/**
+ * \ingroup aodv
+ *
+ * \brief AODV routing protocol
+ */
+class RoutingProtocol : public Ipv4RoutingProtocol
+{
+public:
+ static TypeId GetTypeId (void);
+ static const uint32_t AODV_PORT;
+
+ /// c-tor
+ RoutingProtocol ();
+ virtual ~RoutingProtocol();
+ virtual void DoDispose ();
+
+ ///\name From Ipv4RoutingProtocol
+ //\{
+ Ptr<Ipv4Route> RouteOutput (Ptr<Packet> p, const Ipv4Header &header, uint32_t oif, Socket::SocketErrno &sockerr);
+ bool RouteInput (Ptr<const Packet> p, const Ipv4Header &header, Ptr<const NetDevice> idev,
+ UnicastForwardCallback ucb, MulticastForwardCallback mcb,
+ LocalDeliverCallback lcb, ErrorCallback ecb);
+ virtual void NotifyInterfaceUp (uint32_t interface);
+ virtual void NotifyInterfaceDown (uint32_t interface);
+ virtual void NotifyAddAddress (uint32_t interface, Ipv4InterfaceAddress address);
+ virtual void NotifyRemoveAddress (uint32_t interface, Ipv4InterfaceAddress address);
+ virtual void SetIpv4 (Ptr<Ipv4> ipv4);
+ //\}
+
+ ///\name Handle protocol parameters
+ //\{
+ bool GetDesinationOnlyFlag () const { return DestinationOnly; }
+ void SetDesinationOnlyFlag (bool f) { DestinationOnly = f; }
+ bool GetGratuitousReplyFlag () const { return GratuitousReply; }
+ void SetGratuitousReplyFlag (bool f) { GratuitousReply = f; }
+ void SetHelloEnable (bool f) { EnableHello = f; }
+ bool GetHelloEnable () const { return EnableHello; }
+ void SetBroadcastEnable (bool f) { EnableBroadcast = f; }
+ bool GetBroadcastEnable () const { return EnableBroadcast; }
+ //\}
+private:
+ ///\name Protocol parameters.
+ //\{
+ uint32_t RreqRetries; ///< Maximum number of retransmissions of RREQ with TTL = NetDiameter to discover a route
+ uint16_t RreqRateLimit; ///< Maximum number of RREQ per second.
+ Time ActiveRouteTimeout; ///< Period of time during which the route is considered to be valid.
+ uint32_t NetDiameter; ///< Net diameter measures the maximum possible number of hops between two nodes in the network
+ /**
+ * NodeTraversalTime is a conservative estimate of the average one hop traversal time for packets
+ * and should include queuing delays, interrupt processing times and transfer times.
+ */
+ Time NodeTraversalTime;
+ Time NetTraversalTime; ///< Estimate of the average net traversal time.
+ Time PathDiscoveryTime; ///< Estimate of maximum time needed to find route in network.
+ Time MyRouteTimeout; ///< Value of lifetime field in RREP generating by this node.
+ /**
+ * Every HelloInterval the node checks whether it has sent a broadcast within the last HelloInterval.
+ * If it has not, it MAY broadcast a Hello message
+ */
+ Time HelloInterval;
+ uint32_t AllowedHelloLoss; ///< Number of hello messages which may be loss for valid link
+ /**
+ * DeletePeriod is intended to provide an upper bound on the time for which an upstream node A
+ * can have a neighbor B as an active next hop for destination D, while B has invalidated the route to D.
+ */
+ Time DeletePeriod;
+ Time NextHopWait; ///< Period of our waiting for the neighbour's RREP_ACK
+ /**
+ * The TimeoutBuffer is configurable. Its purpose is to provide a buffer for the timeout so that if the RREP is delayed
+ * due to congestion, a timeout is less likely to occur while the RREP is still en route back to the source.
+ */
+ uint16_t TimeoutBuffer;
+ Time BlackListTimeout; ///< Time for which the node is put into the blacklist
+ uint32_t MaxQueueLen; ///< The maximum number of packets that we allow a routing protocol to buffer.
+ Time MaxQueueTime; ///< The maximum period of time that a routing protocol is allowed to buffer a packet for.
+ bool DestinationOnly; ///< Indicates only the destination may respond to this RREQ.
+ bool GratuitousReply; ///< Indicates whether a gratuitous RREP should be unicast to the node originated route discovery.
+ bool EnableHello; ///< Indicates whether a hello messages enable
+ bool EnableBroadcast; ///< Indicates whether a a broadcast data packets forwarding enable
+ //\}
+
+ /// IP protocol
+ Ptr<Ipv4> m_ipv4;
+ /// Raw socket per each IP interface, map socket -> iface address (IP + mask)
+ std::map< Ptr<Socket>, Ipv4InterfaceAddress > m_socketAddresses;
+
+ /// Routing table
+ RoutingTable m_routingTable;
+ /// A "drop-front" queue used by the routing layer to buffer packets to which it does not have a route.
+ RequestQueue m_queue;
+ /// Broadcast ID
+ uint32_t m_requestId;
+ /// Request sequence number
+ uint32_t m_seqNo;
+ /// Handle duplicated RREQ
+ IdCache m_rreqIdCache;
+ /// Handle duplicated broadcast/multicast packets
+ DuplicatePacketDetection m_dpd;
+ /// Handle neighbors
+ Neighbors m_nb;
+ /// Number of RREQs used for RREQ rate control
+ uint16_t m_rreqCount;
+
+ /// Unicast callback for own packets
+ UnicastForwardCallback m_scb;
+ /// Error callback for own packets
+ ErrorCallback m_ecb;
+
+private:
+ /// Start protocol operation
+ void Start ();
+ /// If route exists and valid, forward packet.
+ bool Forwarding (Ptr<const Packet> p, const Ipv4Header & header, UnicastForwardCallback ucb, ErrorCallback ecb);
+ /**
+ * To reduce congestion in a network, repeated attempts by a source node at route discovery
+ * for a single destination MUST utilize a binary exponential backoff.
+ */
+ void ScheduleRreqRetry (Ipv4Address dst);
+ /**
+ * Set lifetime field in routing table entry to the maximum of existing lifetime and lt, if the entry exists
+ * \param addr - destination address
+ * \param lt - proposed time for lifetime field in routing table entry for destination with address addr.
+ * \return true if route to destination address addr exist
+ */
+ bool UpdateRouteLifeTime (Ipv4Address addr, Time lt);
+ /**
+ * Update neighbor record.
+ * \param receiver is supposed to be my interface
+ * \param sender is supposed to be IP address of my neighbor.
+ */
+ void UpdateRouteToNeighbor (Ipv4Address sender, Ipv4Address receiver);
+ /// Check that packet is send from own interface
+ bool IsMyOwnAddress (Ipv4Address src);
+ /// Find socket with local interface address iface
+ Ptr<Socket> FindSocketWithInterfaceAddress (Ipv4InterfaceAddress iface) const;
+ /// Process hello message
+ void ProcessHello (RrepHeader const & rrepHeader, Ipv4Address receiverIfaceAddr);
+
+ ///\name Receive control packets
+ //\{
+ /// Receive and process control packet
+ void RecvAodv (Ptr<Socket> socket);
+ /// Receive RREQ
+ void RecvRequest (Ptr<Packet> p, Ipv4Address receiver, Ipv4Address src);
+ /// Receive RREP
+ void RecvReply (Ptr<Packet> p, Ipv4Address my ,Ipv4Address src);
+ /// Receive RREP_ACK
+ void RecvReplyAck (Ipv4Address neighbor);
+ /// Receive RERR from node with address src
+ void RecvError (Ptr<Packet> p, Ipv4Address src);
+ //\}
+
+ ///\name Send
+ //\{
+ /// Forward packet from route request queue
+ void SendPacketFromQueue (Ipv4Address dst, Ptr<Ipv4Route> route);
+ /// Aux. send helper
+ void Send (Ptr<Ipv4Route>, Ptr<const Packet>, const Ipv4Header &);
+ /// Send hello
+ void SendHello ();
+ /// Send RREQ
+ void SendRequest (Ipv4Address dst);
+ /// Send RREP
+ void SendReply (RreqHeader const & rreqHeader, RoutingTableEntry const & toOrigin);
+ /** Send RREP by intermediate node
+ * \param toDst routing table entry to destination
+ * \param toOrigin routing table entry to originator
+ * \param gratRep indicates whether a gratuitous RREP should be unicast to destination
+ */
+ void SendReplyByIntermediateNode (RoutingTableEntry & toDst, RoutingTableEntry & toOrigin, bool gratRep);
+ /// Send RREP_ACK
+ void SendReplyAck (Ipv4Address neighbor);
+ /// Initiate RERR
+ void SendRerrWhenBreaksLinkToNextHop (Ipv4Address nextHop);
+ /// Forward RERR
+ void SendRerrMessage(Ptr<Packet> packet, std::vector<Ipv4Address> precursors);
+ /**
+ * Send RERR message when no route to forward input packet. Unicast if there is reverse route to originating node, broadcast otherwise.
+ * \param dst - destination node IP address
+ * \param dstSeqNo - destination node sequence number
+ * \param origin - originating node IP address
+ */
+ void SendRerrWhenNoRouteToForward (Ipv4Address dst, uint32_t dstSeqNo, Ipv4Address origin);
+ //\}
+
+ /// Notify that packet is dropped for some reason
+ void Drop(Ptr<const Packet>, const Ipv4Header &, Socket::SocketErrno);
+
+ /// Hello timer
+ Timer m_htimer;
+ /// Schedule next send of hello message
+ void HelloTimerExpire ();
+ /// RREQ rate limit timer
+ Timer m_rreqRateLimitTimer;
+ /// Reset RREQ count and schedule RREQ rate limit timer with delay 1 sec.
+ void RreqRateLimitTimerExpire ();
+ /// Map IP address + RREQ timer.
+ std::map<Ipv4Address, Timer> m_addressReqTimer;
+ /// Handle route discovery process
+ void RouteRequestTimerExpire (Ipv4Address dst);
+ /// Mark link to neighbor node as unidirectional for blacklistTimeout
+ void AckTimerExpire (Ipv4Address neighbor, Time blacklistTimeout);
+
+};
+
+}
+}
+#endif /* AODVROUTINGPROTOCOL_H */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-rqueue.cc Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,151 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+#include "aodv-rqueue.h"
+#include <algorithm>
+#include <functional>
+#include "ns3/ipv4-route.h"
+#include "ns3/socket.h"
+#include "ns3/log.h"
+
+NS_LOG_COMPONENT_DEFINE ("AodvRequestQueue");
+
+namespace ns3
+{
+namespace aodv
+{
+uint32_t
+RequestQueue::GetSize ()
+{
+ Purge ();
+ return m_queue.size ();
+}
+
+bool
+RequestQueue::Enqueue (QueueEntry & entry)
+{
+ Purge ();
+ for (std::vector<QueueEntry>::const_iterator i = m_queue.begin (); i
+ != m_queue.end (); ++i)
+ {
+ if ((i->GetPacket ()->GetUid () == entry.GetPacket ()->GetUid ())
+ && (i->GetIpv4Header ().GetDestination ()
+ == entry.GetIpv4Header ().GetDestination ()))
+ return false;
+ }
+ entry.SetExpireTime (m_queueTimeout);
+ if (m_queue.size () == m_maxLen)
+ {
+ Drop (m_queue.front (), "Drop the most aged packet"); // Drop the most aged packet
+ m_queue.erase (m_queue.begin ());
+ }
+ m_queue.push_back (entry);
+ return true;
+}
+
+void
+RequestQueue::DropPacketWithDst (Ipv4Address dst)
+{
+ NS_LOG_FUNCTION (this << dst);
+ Purge ();
+ const Ipv4Address addr = dst;
+ for (std::vector<QueueEntry>::iterator i = m_queue.begin (); i
+ != m_queue.end (); ++i)
+ {
+ if (IsEqual (*i, dst))
+ {
+ Drop (*i, "DropPacketWithDst ");
+ }
+ }
+ m_queue.erase (std::remove_if (m_queue.begin (), m_queue.end (),
+ std::bind2nd (std::ptr_fun (RequestQueue::IsEqual), dst)), m_queue.end ());
+}
+
+bool
+RequestQueue::Dequeue (Ipv4Address dst, QueueEntry & entry)
+{
+ Purge ();
+ for (std::vector<QueueEntry>::iterator i = m_queue.begin (); i != m_queue.end (); ++i)
+ {
+ if (i->GetIpv4Header ().GetDestination () == dst)
+ {
+ entry = *i;
+ m_queue.erase (i);
+ return true;
+ }
+ }
+ return false;
+}
+
+bool
+RequestQueue::Find (Ipv4Address dst)
+{
+ for (std::vector<QueueEntry>::const_iterator i = m_queue.begin (); i
+ != m_queue.end (); ++i)
+ {
+ if (i->GetIpv4Header ().GetDestination () == dst)
+ return true;
+ }
+ return false;
+}
+
+struct IsExpired
+{
+ bool
+ operator() (QueueEntry const & e) const
+ {
+ return (e.GetExpireTime () < Seconds (0));
+ }
+};
+
+void
+RequestQueue::Purge ()
+{
+ IsExpired pred;
+ for (std::vector<QueueEntry>::iterator i = m_queue.begin (); i
+ != m_queue.end (); ++i)
+ {
+ if (pred (*i))
+ {
+ Drop (*i, "Drop outdated packet ");
+ }
+ }
+ m_queue.erase (std::remove_if (m_queue.begin (), m_queue.end (), pred),
+ m_queue.end ());
+}
+
+void
+RequestQueue::Drop (QueueEntry en, std::string reason)
+{
+ NS_LOG_LOGIC (reason << en.GetPacket ()->GetUid () << " " << en.GetIpv4Header ().GetDestination ());
+ en.GetErrorCallback () (en.GetPacket (), en.GetIpv4Header (),
+ Socket::ERROR_NOROUTETOHOST);
+ return;
+}
+
+}
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-rqueue.h Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,137 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+#ifndef AODV_RQUEUE_H
+#define AODV_RQUEUE_H
+
+#include <vector>
+#include "ns3/ipv4-routing-protocol.h"
+#include "ns3/simulator.h"
+
+
+namespace ns3 {
+namespace aodv {
+
+/**
+ * \ingroup aodv
+ * \brief AODV Queue Entry
+ */
+class QueueEntry
+{
+public:
+ typedef Ipv4RoutingProtocol::UnicastForwardCallback UnicastForwardCallback;
+ typedef Ipv4RoutingProtocol::ErrorCallback ErrorCallback;
+ /// c-tor
+ QueueEntry (Ptr<const Packet> pa = 0, Ipv4Header const & h = Ipv4Header (),
+ UnicastForwardCallback ucb = UnicastForwardCallback (),
+ ErrorCallback ecb = ErrorCallback (), Time exp = Simulator::Now ()) :
+ m_packet (pa), m_header (h), m_ucb (ucb), m_ecb (ecb),
+ m_expire (exp + Simulator::Now ())
+ {}
+
+ /**
+ * Compare queue entries
+ * \return true if equal
+ */
+ bool operator== (QueueEntry const & o) const
+ {
+ return ((m_packet == o.m_packet) && (m_header.GetDestination () == o.m_header.GetDestination ()) && (m_expire == o.m_expire));
+ }
+ ///\name Fields
+ //\{
+ UnicastForwardCallback GetUnicastForwardCallback () const { return m_ucb; }
+ void SetUnicastForwardCallback (UnicastForwardCallback ucb) { m_ucb = ucb; }
+ ErrorCallback GetErrorCallback () const { return m_ecb; }
+ void SetErrorCallback (ErrorCallback ecb) { m_ecb = ecb; }
+ Ptr<const Packet> GetPacket () const { return m_packet; }
+ void SetPacket (Ptr<const Packet> p) { m_packet = p; }
+ Ipv4Header GetIpv4Header() const { return m_header; }
+ void SetIpv4Header (Ipv4Header h) { m_header = h; }
+ void SetExpireTime (Time exp) { m_expire = exp + Simulator::Now(); }
+ Time GetExpireTime () const { return m_expire - Simulator::Now(); }
+ //\}
+private:
+ /// Data packet
+ Ptr<const Packet> m_packet;
+ /// IP header
+ Ipv4Header m_header;
+ /// Unicast forward callback
+ UnicastForwardCallback m_ucb;
+ /// Error callback
+ ErrorCallback m_ecb;
+ /// Expire time for queue entry
+ Time m_expire;
+};
+/**
+ * \ingroup aodv
+ * \brief AODV route request queue
+ *
+ * Since AODV is an on demand routing we queue requests while looking for route.
+ */
+class RequestQueue
+{
+public:
+ /// Default c-tor
+ RequestQueue (uint32_t maxLen, Time routeToQueueTimeout) :
+ m_maxLen (maxLen), m_queueTimeout (routeToQueueTimeout)
+ {
+ }
+ /// Push entry in queue, if there is no entry with the same packet and destination address in queue.
+ bool Enqueue (QueueEntry & entry);
+ /// Return first found (the earliest) entry for given destination
+ bool Dequeue (Ipv4Address dst, QueueEntry & entry);
+ /// Remove all packets with destination IP address dst
+ void DropPacketWithDst (Ipv4Address dst);
+ /// Finds whether a packet with destination dst exists in the queue
+ bool Find (Ipv4Address dst);
+ /// Number of entries
+ uint32_t GetSize ();
+ ///\name Fields
+ //\{
+ uint32_t GetMaxQueueLen () const { return m_maxLen; }
+ void SetMaxQueueLen (uint32_t len) { m_maxLen = len; }
+ Time GetQueueTimeout () const { return m_queueTimeout; }
+ void SetQueueTimeout (Time t) { m_queueTimeout = t; }
+ //\}
+
+private:
+ std::vector<QueueEntry> m_queue;
+ /// Remove all expired entries
+ void Purge ();
+ /// Notify that packet is dropped from queue by timeout
+ void Drop (QueueEntry en, std::string reason);
+ /// The maximum number of packets that we allow a routing protocol to buffer.
+ uint32_t m_maxLen;
+ /// The maximum period of time that a routing protocol is allowed to buffer a packet for, seconds.
+ Time m_queueTimeout;
+ static bool IsEqual (QueueEntry en, const Ipv4Address dst) { return (en.GetIpv4Header ().GetDestination () == dst); }
+};
+
+
+}}
+
+#endif /* AODV_RQUEUE_H */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-rtable.cc Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,347 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+#include "aodv-rtable.h"
+#include <algorithm>
+#include "ns3/simulator.h"
+#include "ns3/log.h"
+
+NS_LOG_COMPONENT_DEFINE ("AodvRoutingTable");
+
+namespace ns3
+{
+namespace aodv
+{
+
+/*
+ The Routing Table
+ */
+
+RoutingTableEntry::RoutingTableEntry (Ptr<NetDevice> dev, Ipv4Address dst, bool vSeqNo, u_int32_t seqNo,
+ Ipv4InterfaceAddress iface, u_int16_t hops, Ipv4Address nextHop, Time lifetime) :
+ m_ackTimer (Timer::CANCEL_ON_DESTROY),
+ m_validSeqNo (vSeqNo), m_seqNo (seqNo), m_hops (hops),
+ m_lifeTime (lifetime + Simulator::Now ()), m_iface (iface), m_flag (VALID),
+ m_reqCount (0), m_blackListState (false), m_blackListTimeout (Simulator::Now ())
+{
+ m_ipv4Route = Create<Ipv4Route> ();
+ m_ipv4Route->SetDestination (dst);
+ m_ipv4Route->SetGateway (nextHop);
+ m_ipv4Route->SetSource (m_iface.GetLocal ());
+ m_ipv4Route->SetOutputDevice (dev);
+}
+
+RoutingTableEntry::~RoutingTableEntry ()
+{
+}
+
+bool
+RoutingTableEntry::InsertPrecursor (Ipv4Address id)
+{
+ if (!LookupPrecursor (id))
+ {
+ m_precursorList.push_back (id);
+ return true;
+ }
+ else
+ return false;
+}
+
+bool
+RoutingTableEntry::LookupPrecursor (Ipv4Address id)
+{
+ for (std::vector<Ipv4Address>::const_iterator i = m_precursorList.begin (); i
+ != m_precursorList.end (); ++i)
+ {
+ if (*i == id)
+ return true;
+ }
+ return false;
+}
+
+bool
+RoutingTableEntry::DeletePrecursor (Ipv4Address id)
+{
+ std::vector<Ipv4Address>::iterator i = std::remove (m_precursorList.begin (),
+ m_precursorList.end (), id);
+ if (i == m_precursorList.end ())
+ return false;
+ else
+ m_precursorList.erase (i, m_precursorList.end ());
+ return true;
+}
+
+void
+RoutingTableEntry::DeleteAllPrecursors ()
+{
+ m_precursorList.clear ();
+}
+
+bool
+RoutingTableEntry::IsPrecursorListEmpty () const
+{
+ return m_precursorList.empty ();
+}
+
+void
+RoutingTableEntry::GetPrecursors (std::vector<Ipv4Address> & prec) const
+{
+ if (IsPrecursorListEmpty ())
+ return;
+ for (std::vector<Ipv4Address>::const_iterator i = m_precursorList.begin (); i
+ != m_precursorList.end (); ++i)
+ {
+ bool result = true;
+ for (std::vector<Ipv4Address>::const_iterator j = prec.begin (); j
+ != prec.end (); ++j)
+ {
+ if (*j == *i)
+ result = false;
+ }
+ if (result)
+ prec.push_back (*i);
+ }
+}
+
+void
+RoutingTableEntry::Invalidate (Time badLinkLifetime)
+{
+ if (m_flag == INVALID)
+ return;
+ m_flag = INVALID;
+ m_reqCount = 0;
+ m_lifeTime = badLinkLifetime + Simulator::Now ();
+}
+
+void
+RoutingTableEntry::Print (std::ostream & os) const
+{
+ os << m_ipv4Route->GetDestination () << "\t" << m_ipv4Route->GetGateway ()
+ << "\t" << m_iface.GetLocal () << "\t";
+ switch (m_flag)
+ {
+ case VALID:
+ {
+ os << "UP";
+ break;
+ }
+ case INVALID:
+ {
+ os << "DOWN";
+ break;
+ }
+ case IN_SEARCH:
+ {
+ os << "IN_SEARCH";
+ break;
+ }
+ }
+ os << "\t" << (m_lifeTime - Simulator::Now ()).GetSeconds () << "\t"
+ << m_hops << "\n";
+}
+
+/*
+ The Routing Table
+ */
+
+RoutingTable::RoutingTable (Time t) :
+ m_badLinkLifetime (t)
+{
+}
+
+bool
+RoutingTable::LookupRoute (Ipv4Address id, RoutingTableEntry & rt)
+{
+ Purge ();
+ if (m_ipv4AddressEntry.empty ())
+ return false;
+ std::map<Ipv4Address, RoutingTableEntry>::const_iterator i =
+ m_ipv4AddressEntry.find (id);
+ if (i == m_ipv4AddressEntry.end ())
+ return false;
+ rt = i->second;
+ return true;
+}
+
+bool
+RoutingTable::DeleteRoute (Ipv4Address dst)
+{
+ Purge ();
+ if (m_ipv4AddressEntry.erase (dst) != 0)
+ return true;
+ return false;
+}
+
+bool
+RoutingTable::AddRoute (RoutingTableEntry & rt)
+{
+ if (rt.GetFlag () != IN_SEARCH)
+ rt.SetRreqCnt (0);
+ std::pair<std::map<Ipv4Address, RoutingTableEntry>::iterator, bool> result =
+ m_ipv4AddressEntry.insert (std::make_pair (rt.GetDestination (), rt));
+ return result.second;
+}
+
+bool
+RoutingTable::Update (RoutingTableEntry & rt)
+{
+ std::map<Ipv4Address, RoutingTableEntry>::iterator i =
+ m_ipv4AddressEntry.find (rt.GetDestination ());
+ if (i == m_ipv4AddressEntry.end ())
+ return false;
+ i->second = rt;
+ if (i->second.GetFlag () != IN_SEARCH)
+ i->second.SetRreqCnt (0);
+ return true;
+}
+
+bool
+RoutingTable::SetEntryState (Ipv4Address id, RouteFlags state)
+{
+ std::map<Ipv4Address, RoutingTableEntry>::iterator i =
+ m_ipv4AddressEntry.find (id);
+ if (i == m_ipv4AddressEntry.end ())
+ return false;
+ i->second.SetFlag (state);
+ i->second.SetRreqCnt (0);
+ return true;
+}
+
+void
+RoutingTable::GetListOfDestinationWithNextHop (Ipv4Address nextHop, std::map<Ipv4Address, uint32_t> & unreachable )
+{
+ Purge ();
+ unreachable.clear ();
+ for (std::map<Ipv4Address, RoutingTableEntry>::const_iterator i =
+ m_ipv4AddressEntry.begin (); i != m_ipv4AddressEntry.end (); ++i)
+ {
+ if (i->second.GetNextHop () == nextHop)
+ {
+ unreachable.insert (std::make_pair (i->first, i->second.GetSeqNo ()));
+ }
+ }
+}
+
+void
+RoutingTable::InvalidateRoutesWithDst (const std::map<Ipv4Address, uint32_t> & unreachable)
+{
+ Purge ();
+ for (std::map<Ipv4Address, RoutingTableEntry>::iterator i =
+ m_ipv4AddressEntry.begin (); i != m_ipv4AddressEntry.end (); ++i)
+ {
+ for (std::map<Ipv4Address, uint32_t>::const_iterator j =
+ unreachable.begin (); j != unreachable.end (); ++j)
+ {
+ if ((i->first == j->first) && (i->second.GetFlag () == VALID))
+ {
+ NS_LOG_LOGIC ("Invalidate route with destination address " << i->first);
+ i->second.Invalidate (m_badLinkLifetime);
+ }
+ }
+ }
+}
+
+void
+RoutingTable::DeleteAllRoutesFromInterface (Ipv4InterfaceAddress iface)
+{
+ if (m_ipv4AddressEntry.empty ())
+ return;
+ for (std::map<Ipv4Address, RoutingTableEntry>::iterator i =
+ m_ipv4AddressEntry.begin (); i != m_ipv4AddressEntry.end ();)
+ {
+ if (i->second.GetInterface () == iface)
+ {
+ std::map<Ipv4Address, RoutingTableEntry>::iterator tmp = i;
+ ++i;
+ m_ipv4AddressEntry.erase (tmp);
+ }
+ else
+ ++i;
+ }
+}
+
+void
+RoutingTable::Purge ()
+{
+ if (m_ipv4AddressEntry.empty ())
+ return;
+ for (std::map<Ipv4Address, RoutingTableEntry>::iterator i =
+ m_ipv4AddressEntry.begin (); i != m_ipv4AddressEntry.end ();)
+ {
+ if (i->second.GetLifeTime () < Seconds (0))
+ {
+ if (i->second.GetFlag () == INVALID)
+ {
+ std::map<Ipv4Address, RoutingTableEntry>::iterator tmp = i;
+ ++i;
+ m_ipv4AddressEntry.erase (tmp);
+ }
+ else if (i->second.GetFlag () == VALID)
+ {
+ NS_LOG_LOGIC ("Invalidate route with destination address " << i->first);
+ i->second.Invalidate (m_badLinkLifetime);
+ ++i;
+ }
+ else
+ ++i;
+ }
+ else
+ {
+ ++i;
+ }
+ }
+}
+
+bool
+RoutingTable::MarkLinkAsUnidirectional (Ipv4Address neighbor, Time blacklistTimeout)
+{
+ std::map<Ipv4Address, RoutingTableEntry>::iterator i =
+ m_ipv4AddressEntry.find (neighbor);
+ if (i == m_ipv4AddressEntry.end ())
+ return false;
+ i->second.SetUnidirectional (true);
+ i->second.SetBalcklistTimeout (blacklistTimeout);
+ i->second.SetRreqCnt (0);
+ return true;
+}
+
+void
+RoutingTable::Print (std::ostream &os)
+{
+ Purge ();
+ os << "\nAODV Routing table\n"
+ << "Destination\tGateway\t\tInterface\tFlag\tExpire\tHops\n";
+ for (std::map<Ipv4Address, RoutingTableEntry>::const_iterator i =
+ m_ipv4AddressEntry.begin (); i != m_ipv4AddressEntry.end (); ++i)
+ {
+ i->second.Print (os);
+ }
+ os << "\n";
+}
+
+}
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-rtable.h Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,252 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+#ifndef AODV_RTABLE_H
+#define AODV_RTABLE_H
+
+#include <cassert>
+#include <map>
+#include <sys/types.h>
+#include "ns3/ipv4.h"
+#include "ns3/ipv4-route.h"
+#include "ns3/timer.h"
+#include "ns3/net-device.h"
+
+namespace ns3 {
+namespace aodv {
+
+/**
+ * \ingroup aodv
+ * \brief Route record states
+ */
+enum RouteFlags
+{
+ VALID = 0, //!< VALID
+ INVALID = 1, //!< INVALID
+ IN_SEARCH = 2, //!< IN_SEARCH
+};
+
+/**
+ * \ingroup aodv
+ * \brief Routing table entry
+ */
+class RoutingTableEntry
+{
+public:
+ /// c-to
+ RoutingTableEntry (Ptr<NetDevice> dev = 0,Ipv4Address dst = Ipv4Address(), bool vSeqNo = false, u_int32_t m_seqNo = 0,
+ Ipv4InterfaceAddress iface = Ipv4InterfaceAddress(), u_int16_t hops = 0,
+ Ipv4Address nextHop = Ipv4Address(), Time lifetime = Simulator::Now());
+
+ ~RoutingTableEntry ();
+
+ ///\name Precursors management
+ //\{
+ /**
+ * Insert precursor in precursor list if it doesn't yet exist in the list
+ * \param id precursor address
+ * \return true on success
+ */
+ bool InsertPrecursor (Ipv4Address id);
+ /**
+ * Lookup precursor by address
+ * \param id precursor address
+ * \return true on success
+ */
+ bool LookupPrecursor (Ipv4Address id);
+ /**
+ * \brief Delete precursor
+ * \param id precursor address
+ * \return true on success
+ */
+ bool DeletePrecursor (Ipv4Address id);
+ /// Delete all precursors
+ void DeleteAllPrecursors ();
+ /**
+ * Check that precursor list empty
+ * \return true if precursor list empty
+ */
+ bool IsPrecursorListEmpty () const;
+ /**
+ * Inserts precursors in vector prec if they does not yet exist in vector
+ */
+ void GetPrecursors (std::vector<Ipv4Address> & prec) const;
+ //\}
+
+ /// Mark entry as "down" (i.e. disable it)
+ void Invalidate (Time badLinkLifetime);
+ ///\name Fields
+ //\{
+ Ipv4Address GetDestination () const { return m_ipv4Route->GetDestination(); }
+ Ptr<Ipv4Route> GetRoute () const { return m_ipv4Route; }
+ void SetRoute (Ptr<Ipv4Route> r) { m_ipv4Route = r; }
+ void SetNextHop (Ipv4Address nextHop) { m_ipv4Route->SetGateway(nextHop); }
+ Ipv4Address GetNextHop () const { return m_ipv4Route->GetGateway(); }
+ void SetOutputDevice (Ptr<NetDevice> dev) { m_ipv4Route->SetOutputDevice(dev); }
+ Ptr<NetDevice> GetOutputDevice () const { return m_ipv4Route->GetOutputDevice(); }
+ Ipv4InterfaceAddress GetInterface () const { return m_iface;}
+ void SetInterface (Ipv4InterfaceAddress iface) { m_iface = iface; }
+ void SetValidSeqNo (bool s) { m_validSeqNo = s; }
+ bool GetValidSeqNo () const { return m_validSeqNo; }
+ void SetSeqNo (uint32_t sn) { m_seqNo = sn; }
+ uint32_t GetSeqNo () const { return m_seqNo; }
+ void SetHop (uint16_t hop) { m_hops = hop; }
+ uint16_t GetHop () const {return m_hops; }
+ void SetLifeTime (Time lt) { m_lifeTime = lt + Simulator::Now(); }
+ Time GetLifeTime () const { return m_lifeTime - Simulator::Now(); }
+ void SetFlag (RouteFlags flag) { m_flag = flag; }
+ RouteFlags GetFlag () const { return m_flag; }
+ void SetRreqCnt (uint8_t n) { m_reqCount = n; }
+ uint8_t GetRreqCnt () const { return m_reqCount; }
+ void IncrementRreqCnt () { m_reqCount++; }
+ void SetUnidirectional (bool u) { m_blackListState = u; }
+ bool IsUnidirectional () const { return m_blackListState; }
+ void SetBalcklistTimeout (Time t) { m_blackListTimeout = t; }
+ Time GetBlacklistTimeout () const { return m_blackListTimeout; }
+ /// RREP_ACK timer
+ Timer m_ackTimer;
+ //\}
+
+ /**
+ * \brief Compare destination address
+ * \return true if equal
+ */
+ bool operator== (Ipv4Address const dst) const
+ {
+ return (m_ipv4Route->GetDestination () == dst);
+ }
+ void Print(std::ostream & os) const;
+
+private:
+ /// Valid Destination Sequence Number flag
+ bool m_validSeqNo;
+ /// Destination Sequence Number, if m_validSeqNo = true
+ uint32_t m_seqNo;
+ /// Hop Count (number of hops needed to reach destination)
+ uint16_t m_hops;
+ /**
+ * \brief Expiration or deletion time of the route
+ * Lifetime field in the routing table plays dual role --
+ * for an active route it is the expiration time, and for an invalid route
+ * it is the deletion time.
+ */
+ Time m_lifeTime;
+ /** Ip route, include
+ * - destination address
+ * - source address
+ * - next hop address (gateway)
+ * - output device
+ */
+ Ptr<Ipv4Route> m_ipv4Route;
+ /// Output interface address
+ Ipv4InterfaceAddress m_iface;
+ /// Routing flags: valid, invalid or in search
+ RouteFlags m_flag;
+
+ /// List of precursors
+ std::vector<Ipv4Address> m_precursorList;
+ /// When I can send another request
+ Time m_routeRequestTimout;
+ /// Number of route requests
+ uint8_t m_reqCount;
+ /// Indicate if this entry is in "blacklist"
+ bool m_blackListState;
+ /// Time for which the node is put into the blacklist
+ Time m_blackListTimeout;
+};
+
+/**
+ * \ingroup aodv
+ * \brief The Routing table used by AODV protocol
+ */
+class RoutingTable
+{
+public:
+ /// c-tor
+ RoutingTable (Time t);
+ ///\name Handle life time of invalid route
+ //\{
+ Time GetBadLinkLifetime () const { return m_badLinkLifetime; }
+ void SetBadLinkLifetime (Time t) { m_badLinkLifetime = t; }
+ //\}
+ /**
+ * Add routing table entry if it doesn't yet exist in routing table
+ * \param r routing table entry
+ * \return true in success
+ */
+ bool AddRoute (RoutingTableEntry & r);
+ /**
+ * Delete routing table entry with destination address dst, if it exists.
+ * \param dst destination address
+ * \return true on success
+ */
+ bool DeleteRoute (Ipv4Address dst);
+ /**
+ * Lookup routing table entry with destination address dst
+ * \param dst destination address
+ * \param rt entry with destination address dst, if exists
+ * \return true on success
+ */
+ bool LookupRoute (Ipv4Address dst, RoutingTableEntry & rt);
+ /// Update routing table
+ bool Update (RoutingTableEntry & rt);
+ /// Set routing table entry flags
+ bool SetEntryState (Ipv4Address dst, RouteFlags state);
+ /// Lookup routing entries with next hop Address dst and not empty list of precursors.
+ void GetListOfDestinationWithNextHop (Ipv4Address nextHop, std::map<Ipv4Address, uint32_t> & unreachable);
+ /**
+ * Update routing entries with this destinations as follows:
+ * 1. The destination sequence number of this routing entry, if it
+ * exists and is valid, is incremented.
+ * 2. The entry is invalidated by marking the route entry as invalid
+ * 3. The Lifetime field is updated to current time plus DELETE_PERIOD.
+ */
+ void InvalidateRoutesWithDst (std::map<Ipv4Address, uint32_t> const & unreachable);
+ /// Delete all route from interface with address iface
+ void DeleteAllRoutesFromInterface (Ipv4InterfaceAddress iface);
+ /// Delete all entries from routing table
+ void Clear () { m_ipv4AddressEntry.clear (); }
+ /// Delete all outdated entries and invalidate valid entry if Lifetime is expired
+ void Purge ();
+ /** Mark entry as unidirectional (e.g. add this neighbor to "blacklist" for blacklistTimeout period)
+ * \param neighbor - neighbor address link to which assumed to be unidirectional
+ * \param blacklistTimeout - time for which the neighboring node is put into the blacklist
+ * \return true on success
+ */
+ bool MarkLinkAsUnidirectional(Ipv4Address neighbor, Time blacklistTimeout);
+ /// Print routing table
+ void Print(std::ostream &os);
+
+private:
+ std::map<Ipv4Address, RoutingTableEntry> m_ipv4AddressEntry;
+ /// Deletion time for invalid routes
+ Time m_badLinkLifetime;
+};
+
+}}
+
+#endif /* AODV_RTABLE_H */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv-test-suite.cc Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,554 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Authors: Pavel Boyko <boyko@iitp.ru>
+ */
+#include "ns3/test.h"
+#include "aodv-neighbor.h"
+#include "aodv-packet.h"
+#include "aodv-rqueue.h"
+#include "aodv-rtable.h"
+#include "ns3/ipv4-route.h"
+
+namespace ns3
+{
+namespace aodv
+{
+
+/// Unit test for neighbors
+struct NeighborTest : public TestCase
+{
+ NeighborTest () : TestCase ("Neighbor"), neighbor (0) { }
+ virtual bool DoRun ();
+ void Handler (Ipv4Address addr);
+ void CheckTimeout1 ();
+ void CheckTimeout2 ();
+ void CheckTimeout3 ();
+ Neighbors * neighbor;
+};
+
+void
+NeighborTest::Handler (Ipv4Address addr)
+{
+}
+
+void
+NeighborTest::CheckTimeout1 ()
+{
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.2.3.4")), true, "Neighbor exists");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.1.1.1")), true, "Neighbor exists");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("2.2.2.2")), true, "Neighbor exists");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("3.3.3.3")), true, "Neighbor exists");
+}
+void
+NeighborTest::CheckTimeout2 ()
+{
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.2.3.4")), false, "Neighbor doesn't exist");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.1.1.1")), false, "Neighbor doesn't exist");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("2.2.2.2")), false, "Neighbor doesn't exist");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("3.3.3.3")), true, "Neighbor exists");
+}
+void
+NeighborTest::CheckTimeout3 ()
+{
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.2.3.4")), false, "Neighbor doesn't exist");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.1.1.1")), false, "Neighbor doesn't exist");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("2.2.2.2")), false, "Neighbor doesn't exist");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("3.3.3.3")), false, "Neighbor doesn't exist");
+}
+
+bool
+NeighborTest::DoRun ()
+{
+ Neighbors nb (Seconds (1));
+ neighbor = &nb;
+ neighbor->SetCallback (MakeCallback (&NeighborTest::Handler, this));
+ neighbor->Update (Ipv4Address ("1.2.3.4"), Seconds (1));
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.2.3.4")), true, "Neighbor exists");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("4.3.2.1")), false, "Neighbor doesn't exist");
+ neighbor->Update (Ipv4Address ("1.2.3.4"), Seconds (10));
+ NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.2.3.4")), true, "Neighbor exists");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->GetExpireTime (Ipv4Address ("1.2.3.4")), Seconds (10), "Known expire time");
+ NS_TEST_EXPECT_MSG_EQ (neighbor->GetExpireTime (Ipv4Address ("4.3.2.1")), Seconds (0), "Known expire time");
+ neighbor->Update (Ipv4Address ("1.1.1.1"), Seconds (5));
+ neighbor->Update (Ipv4Address ("2.2.2.2"), Seconds (10));
+ neighbor->Update (Ipv4Address ("3.3.3.3"), Seconds (20));
+
+ Simulator::Schedule (Seconds (2), &NeighborTest::CheckTimeout1, this);
+ Simulator::Schedule (Seconds (15), &NeighborTest::CheckTimeout2, this);
+ Simulator::Schedule (Seconds (30), &NeighborTest::CheckTimeout3, this);
+ Simulator::Run ();
+ Simulator::Destroy ();
+
+ return GetErrorStatus ();
+}
+//-----------------------------------------------------------------------------
+struct TypeHeaderTest : public TestCase
+{
+ TypeHeaderTest () : TestCase ("AODV TypeHeader")
+ {
+ }
+ virtual bool DoRun ()
+ {
+ TypeHeader h (AODVTYPE_RREQ);
+ NS_TEST_EXPECT_MSG_EQ (h.IsValid (), true, "Default header is valid");
+ NS_TEST_EXPECT_MSG_EQ (h.Get (), AODVTYPE_RREQ, "Default header is RREQ");
+
+ Ptr<Packet> p = Create<Packet> ();
+ p->AddHeader (h);
+ TypeHeader h2 (AODVTYPE_RREP);
+ uint32_t bytes = p->RemoveHeader (h2);
+ NS_TEST_EXPECT_MSG_EQ (bytes, 1, "Type header is 1 byte long");
+ NS_TEST_EXPECT_MSG_EQ (h, h2, "Round trip serialization works");
+ return GetErrorStatus ();
+ }
+};
+//-----------------------------------------------------------------------------
+/// Unit test for RREQ
+struct RreqHeaderTest : public TestCase
+{
+ RreqHeaderTest () : TestCase ("AODV RREQ")
+ {
+ }
+ virtual bool DoRun ()
+ {
+ RreqHeader h (/*flags*/0, /*reserved*/0, /*hopCount*/6, /*requestID*/1, /*dst*/Ipv4Address ("1.2.3.4"),
+ /*dstSeqNo*/40, /*origin*/Ipv4Address ("4.3.2.1"), /*originSeqNo*/10);
+ NS_TEST_EXPECT_MSG_EQ (h.GetGratiousRrep (), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetDestinationOnly (), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetHopCount (), 6, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetId (), 1, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetDst (), Ipv4Address ("1.2.3.4"), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetDstSeqno (), 40, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetOrigin (), Ipv4Address ("4.3.2.1"), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetOriginSeqno (), 10, "trivial");
+
+ h.SetGratiousRrep (true);
+ NS_TEST_EXPECT_MSG_EQ (h.GetGratiousRrep (), true, "trivial");
+ h.SetDestinationOnly (true);
+ NS_TEST_EXPECT_MSG_EQ (h.GetDestinationOnly (), true, "trivial");
+ h.SetUnknownSeqno (true);
+ NS_TEST_EXPECT_MSG_EQ (h.GetUnknownSeqno (), true, "trivial");
+ h.SetDst (Ipv4Address ("1.1.1.1"));
+ NS_TEST_EXPECT_MSG_EQ (h.GetDst (), Ipv4Address ("1.1.1.1"), "trivial");
+ h.SetDstSeqno (5);
+ NS_TEST_EXPECT_MSG_EQ (h.GetDstSeqno (), 5, "trivial");
+ h.SetHopCount (7);
+ NS_TEST_EXPECT_MSG_EQ (h.GetHopCount (), 7, "trivial");
+ h.SetId (55);
+ NS_TEST_EXPECT_MSG_EQ (h.GetId (), 55, "trivial");
+ h.SetOrigin (Ipv4Address ("4.4.4.4"));
+ NS_TEST_EXPECT_MSG_EQ (h.GetOrigin (), Ipv4Address ("4.4.4.4"), "trivial");
+ h.SetOriginSeqno (23);
+ NS_TEST_EXPECT_MSG_EQ (h.GetOriginSeqno (), 23, "trivial");
+
+ Ptr<Packet> p = Create<Packet> ();
+ p->AddHeader (h);
+ RreqHeader h2;
+ uint32_t bytes = p->RemoveHeader (h2);
+ NS_TEST_EXPECT_MSG_EQ (bytes, 23, "RREP is 23 bytes long");
+ NS_TEST_EXPECT_MSG_EQ (h, h2, "Round trip serialization works");
+
+ return GetErrorStatus ();
+ }
+};
+//-----------------------------------------------------------------------------
+/// Unit test for RREP
+struct RrepHeaderTest : public TestCase
+{
+ RrepHeaderTest () : TestCase ("AODV RREP") {}
+ virtual bool DoRun ()
+ {
+ RrepHeader h (/*prefixSize*/0, /*hopCount*/12, /*dst*/Ipv4Address ("1.2.3.4"), /*dstSeqNo*/2,
+ /*origin*/Ipv4Address ("4.3.2.1"), /*lifetime*/Seconds (3));
+ NS_TEST_EXPECT_MSG_EQ (h.GetPrefixSize (), 0, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetHopCount (), 12, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetDst (), Ipv4Address ("1.2.3.4"), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetDstSeqno (), 2, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetOrigin (), Ipv4Address ("4.3.2.1"), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetLifeTime (), Seconds (3), "trivial");
+ h.SetDst (Ipv4Address ("1.1.1.1"));
+ NS_TEST_EXPECT_MSG_EQ (h.GetDst (), Ipv4Address ("1.1.1.1"), "trivial");
+ h.SetDstSeqno (123);
+ NS_TEST_EXPECT_MSG_EQ (h.GetDstSeqno (), 123, "trivial");
+ h.SetOrigin (Ipv4Address ("4.4.4.4"));
+ NS_TEST_EXPECT_MSG_EQ (h.GetOrigin (), Ipv4Address ("4.4.4.4"), "trivial");
+ h.SetLifeTime (MilliSeconds (1200));
+ NS_TEST_EXPECT_MSG_EQ (h.GetLifeTime (), MilliSeconds (1200), "trivial");
+ h.SetAckRequired (true);
+ NS_TEST_EXPECT_MSG_EQ (h.GetAckRequired (), true, "trivial");
+ h.SetAckRequired (false);
+ NS_TEST_EXPECT_MSG_EQ (h.GetAckRequired (), false, "trivial");
+ h.SetPrefixSize (2);
+ NS_TEST_EXPECT_MSG_EQ (h.GetPrefixSize (), 2, "trivial");
+ h.SetHopCount (15);
+ NS_TEST_EXPECT_MSG_EQ (h.GetHopCount (), 15, "trivial");
+
+ h.SetHello (Ipv4Address ("10.0.0.2"), 9, Seconds (15));
+ NS_TEST_EXPECT_MSG_EQ (h.GetDst (), h.GetOrigin (), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetDstSeqno (), 9, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetLifeTime (), Seconds (15), "trivial");
+
+ Ptr<Packet> p = Create<Packet> ();
+ p->AddHeader (h);
+ RrepHeader h2;
+ uint32_t bytes = p->RemoveHeader (h2);
+ NS_TEST_EXPECT_MSG_EQ (bytes, 19, "RREP is 19 bytes long");
+ NS_TEST_EXPECT_MSG_EQ (h, h2, "Round trip serialization works");
+ return GetErrorStatus ();
+ }
+};
+//-----------------------------------------------------------------------------
+/// Unit test for RREP-ACK
+struct RrepAckHeaderTest : public TestCase
+{
+ RrepAckHeaderTest () : TestCase ("AODV RREP-ACK")
+ {
+ }
+ virtual bool DoRun()
+ {
+ RrepAckHeader h;
+ Ptr<Packet> p = Create<Packet> ();
+ p->AddHeader (h);
+ RrepAckHeader h2;
+ uint32_t bytes = p->RemoveHeader(h2);
+ NS_TEST_EXPECT_MSG_EQ (bytes, 1, "ACK is 1 byte long");
+ NS_TEST_EXPECT_MSG_EQ (h, h2, "Round trip serialization works");
+ return GetErrorStatus ();
+ }
+};
+//-----------------------------------------------------------------------------
+/// Unit test for RERR
+struct RerrHeaderTest : public TestCase
+{
+ RerrHeaderTest () : TestCase ("AODV RERR")
+ {
+ }
+ virtual bool DoRun()
+ {
+ RerrHeader h;
+ h.SetNoDelete(true);
+ NS_TEST_EXPECT_MSG_EQ(h.GetNoDelete(), true, "trivial");
+ Ipv4Address dst = Ipv4Address("1.2.3.4");
+ NS_TEST_EXPECT_MSG_EQ(h.AddUnDestination(dst, 12), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ(h.GetDestCount(), 1, "trivial");
+ NS_TEST_EXPECT_MSG_EQ(h.AddUnDestination(dst, 13), true, "trivial");
+ Ipv4Address dst2 = Ipv4Address("4.3.2.1");
+ NS_TEST_EXPECT_MSG_EQ(h.AddUnDestination(dst2, 12), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ(h.GetDestCount(), 2, "trivial");
+
+ Ptr<Packet> p = Create<Packet> ();
+ p->AddHeader (h);
+ RerrHeader h2;
+ uint32_t bytes = p->RemoveHeader(h2);
+ NS_TEST_EXPECT_MSG_EQ (bytes, h.GetSerializedSize(), "(De)Serialized size match");
+ NS_TEST_EXPECT_MSG_EQ (h, h2, "Round trip serialization works");
+ return GetErrorStatus ();
+ }
+};
+//-----------------------------------------------------------------------------
+/// Unit test for AODV routing table entry
+struct QueueEntryTest : public TestCase
+{
+ QueueEntryTest () : TestCase ("QueueEntry") {}
+ void Unicast (Ptr<Ipv4Route> route, Ptr<const Packet> packet, const Ipv4Header & header) {}
+ void Error (Ptr<const Packet>, const Ipv4Header &, Socket::SocketErrno) {}
+ void Unicast2 (Ptr<Ipv4Route> route, Ptr<const Packet> packet, const Ipv4Header & header) {}
+ void Error2 (Ptr<const Packet>, const Ipv4Header &, Socket::SocketErrno) {}
+ virtual bool DoRun()
+ {
+ Ptr<const Packet> packet = Create<Packet> ();
+ Ipv4Header h;
+ h.SetDestination (Ipv4Address ("1.2.3.4"));
+ h.SetSource (Ipv4Address ("4.3.2.1"));
+ Ipv4RoutingProtocol::UnicastForwardCallback ucb = MakeCallback (&QueueEntryTest::Unicast, this);
+ Ipv4RoutingProtocol::ErrorCallback ecb = MakeCallback (&QueueEntryTest::Error, this);
+ QueueEntry entry (packet, h, ucb, ecb, Seconds (1));
+ NS_TEST_EXPECT_MSG_EQ (h.GetDestination (), entry.GetIpv4Header ().GetDestination (), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (h.GetSource (), entry.GetIpv4Header ().GetSource (), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (ucb.IsEqual(entry.GetUnicastForwardCallback ()), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (ecb.IsEqual(entry.GetErrorCallback ()), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (entry.GetExpireTime (), Seconds (1), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (entry.GetPacket (), packet, "trivial");
+ entry.SetExpireTime (Seconds (3));
+ NS_TEST_EXPECT_MSG_EQ (entry.GetExpireTime (), Seconds (3), "trivial");
+ Ipv4Header h2;
+ h2.SetDestination(Ipv4Address ("1.1.1.1"));
+ entry.SetIpv4Header (h2);
+ NS_TEST_EXPECT_MSG_EQ (entry.GetIpv4Header ().GetDestination (), Ipv4Address ("1.1.1.1"), "trivial");
+ Ipv4RoutingProtocol::UnicastForwardCallback ucb2 = MakeCallback (&QueueEntryTest::Unicast2, this);
+ Ipv4RoutingProtocol::ErrorCallback ecb2 = MakeCallback (&QueueEntryTest::Error2, this);
+ entry.SetErrorCallback (ecb2);
+ NS_TEST_EXPECT_MSG_EQ (ecb2.IsEqual (entry.GetErrorCallback ()), true, "trivial");
+ entry.SetUnicastForwardCallback (ucb2);
+ NS_TEST_EXPECT_MSG_EQ (ucb2.IsEqual (entry.GetUnicastForwardCallback ()), true, "trivial");
+
+ return GetErrorStatus();
+ }
+};
+//-----------------------------------------------------------------------------
+/// Unit test for RequestQueue
+struct AodvRqueueTest : public TestCase
+{
+ AodvRqueueTest () : TestCase ("Rqueue"), q (64, Seconds (30)) {}
+ virtual bool DoRun ();
+ void Unicast (Ptr<Ipv4Route> route, Ptr<const Packet> packet, const Ipv4Header & header) {}
+ void Error (Ptr<const Packet>, const Ipv4Header &, Socket::SocketErrno) {}
+ void CheckSizeLimit ();
+ void CheckTimeout ();
+
+ RequestQueue q;
+};
+
+bool
+AodvRqueueTest::DoRun ()
+{
+ NS_TEST_EXPECT_MSG_EQ (q.GetMaxQueueLen (), 64, "trivial");
+ q.SetMaxQueueLen (32);
+ NS_TEST_EXPECT_MSG_EQ (q.GetMaxQueueLen (), 32, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (q.GetQueueTimeout (), Seconds (30), "trivial");
+ q.SetQueueTimeout (Seconds(10));
+ NS_TEST_EXPECT_MSG_EQ (q.GetQueueTimeout (), Seconds (10), "trivial");
+
+ Ptr<const Packet> packet = Create<Packet> ();
+ Ipv4Header h;
+ h.SetDestination (Ipv4Address ("1.2.3.4"));
+ h.SetSource (Ipv4Address ("4.3.2.1"));
+ Ipv4RoutingProtocol::UnicastForwardCallback ucb = MakeCallback (&AodvRqueueTest::Unicast, this);
+ Ipv4RoutingProtocol::ErrorCallback ecb = MakeCallback (&AodvRqueueTest::Error, this);
+ QueueEntry e1 (packet, h, ucb, ecb, Seconds (1));
+ q.Enqueue (e1);
+ q.Enqueue (e1);
+ q.Enqueue (e1);
+ NS_TEST_EXPECT_MSG_EQ (q.Find (Ipv4Address ("1.2.3.4")), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (q.Find (Ipv4Address ("1.1.1.1")), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 1, "trivial");
+ q.DropPacketWithDst (Ipv4Address ("1.2.3.4"));
+ NS_TEST_EXPECT_MSG_EQ (q.Find (Ipv4Address ("1.2.3.4")), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 0, "trivial");
+
+ h.SetDestination (Ipv4Address ("2.2.2.2"));
+ QueueEntry e2 (packet, h, ucb, ecb, Seconds (1));
+ q.Enqueue (e1);
+ q.Enqueue (e2);
+ Ptr<Packet> packet2 = Create<Packet> ();
+ QueueEntry e3 (packet2, h, ucb, ecb, Seconds (1));
+ NS_TEST_EXPECT_MSG_EQ (q.Dequeue (Ipv4Address("3.3.3.3"), e3), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (q.Dequeue (Ipv4Address ("2.2.2.2"), e3), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (q.Find (Ipv4Address ("2.2.2.2")), false, "trivial");
+ q.Enqueue (e2);
+ q.Enqueue (e3);
+ NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 2, "trivial");
+ Ptr<Packet> packet4 = Create<Packet> ();
+ h.SetDestination (Ipv4Address ("1.2.3.4"));
+ QueueEntry e4 (packet4, h, ucb, ecb, Seconds (20));
+ q.Enqueue (e4);
+ NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 3, "trivial");
+ q.DropPacketWithDst (Ipv4Address ("1.2.3.4"));
+ NS_TEST_EXPECT_MSG_EQ (q.GetSize(), 1, "trivial");
+
+ CheckSizeLimit ();
+
+ Ipv4Header header2;
+ Ipv4Address dst2 ("1.2.3.4");
+ header2.SetDestination (dst2);
+
+ Simulator::Schedule (q.GetQueueTimeout () + Seconds (1), &AodvRqueueTest::CheckTimeout, this);
+
+ Simulator::Run ();
+ Simulator::Destroy ();
+
+ return GetErrorStatus ();
+}
+
+void
+AodvRqueueTest::CheckSizeLimit ()
+{
+ Ptr<Packet> packet = Create<Packet> ();
+ Ipv4Header header;
+ Ipv4RoutingProtocol::UnicastForwardCallback ucb = MakeCallback (&AodvRqueueTest::Unicast, this);
+ Ipv4RoutingProtocol::ErrorCallback ecb = MakeCallback (&AodvRqueueTest::Error, this);
+ QueueEntry e1 (packet, header, ucb, ecb, Seconds (1));
+
+ for (uint32_t i = 0; i < q.GetMaxQueueLen (); ++i)
+ q.Enqueue (e1);
+ NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 2, "trivial");
+
+ for (uint32_t i = 0; i < q.GetMaxQueueLen (); ++i)
+ q.Enqueue (e1);
+ NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 2, "trivial");
+}
+
+void
+AodvRqueueTest::CheckTimeout ()
+{
+ NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 0, "Must be empty now");
+}
+//-----------------------------------------------------------------------------
+/// Unit test for AODV routing table entry
+struct AodvRtableEntryTest : public TestCase
+{
+ AodvRtableEntryTest () : TestCase ("RtableEntry") {}
+ virtual bool DoRun()
+ {
+ Ptr<NetDevice> dev;
+ Ipv4InterfaceAddress iface;
+ RoutingTableEntry rt (/*output device*/dev, /*dst*/Ipv4Address("1.2.3.4"), /*validSeqNo*/true, /*seqNo*/10,
+ /*interface*/iface, /*hop*/5, /*next hop*/Ipv4Address("3.3.3.3"), /*lifetime*/Seconds(10));
+ NS_TEST_EXPECT_MSG_EQ (rt.GetOutputDevice (), dev, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetDestination (), Ipv4Address ("1.2.3.4"), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetValidSeqNo (), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetSeqNo (), 10, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetInterface (), iface, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetHop (), 5, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetNextHop (), Ipv4Address ("3.3.3.3"), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetLifeTime (), Seconds (10), "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetFlag (), VALID, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetRreqCnt (), 0, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.IsPrecursorListEmpty (), true, "trivial");
+
+ Ptr<NetDevice> dev2;
+ Ipv4InterfaceAddress iface2;
+ rt.SetOutputDevice (dev2);
+ NS_TEST_EXPECT_MSG_EQ (rt.GetOutputDevice (), dev2, "trivial");
+ rt.SetInterface (iface2);
+ NS_TEST_EXPECT_MSG_EQ (rt.GetInterface (), iface2, "trivial");
+ rt.SetValidSeqNo (false);
+ NS_TEST_EXPECT_MSG_EQ (rt.GetValidSeqNo (), false, "trivial");
+ rt.SetFlag (INVALID);
+ NS_TEST_EXPECT_MSG_EQ (rt.GetFlag (), INVALID, "trivial");
+ rt.SetFlag (IN_SEARCH);
+ NS_TEST_EXPECT_MSG_EQ (rt.GetFlag (), IN_SEARCH, "trivial");
+ rt.SetHop (12);
+ NS_TEST_EXPECT_MSG_EQ (rt.GetHop (), 12, "trivial");
+ rt.SetLifeTime (Seconds (1));
+ NS_TEST_EXPECT_MSG_EQ (rt.GetLifeTime (), Seconds (1), "trivial");
+ rt.SetNextHop (Ipv4Address ("1.1.1.1"));
+ NS_TEST_EXPECT_MSG_EQ (rt.GetNextHop (), Ipv4Address ("1.1.1.1"), "trivial");
+ rt.SetUnidirectional (true);
+ NS_TEST_EXPECT_MSG_EQ (rt.IsUnidirectional (), true, "trivial");
+ rt.SetBalcklistTimeout (Seconds (7));
+ NS_TEST_EXPECT_MSG_EQ (rt.GetBlacklistTimeout (), Seconds (7), "trivial");
+ rt.SetRreqCnt (2);
+ NS_TEST_EXPECT_MSG_EQ (rt.GetRreqCnt (), 2, "trivial");
+ rt.IncrementRreqCnt ();
+ NS_TEST_EXPECT_MSG_EQ (rt.GetRreqCnt (), 3, "trivial");
+ rt.Invalidate (Seconds (13));
+ NS_TEST_EXPECT_MSG_EQ (rt.GetFlag (), INVALID, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetLifeTime (), Seconds (13), "trivial");
+ rt.SetLifeTime (Seconds (0.1));
+ NS_TEST_EXPECT_MSG_EQ (rt.GetLifeTime (), Seconds (0.1), "trivial");
+ Ptr<Ipv4Route> route = rt.GetRoute ();
+ NS_TEST_EXPECT_MSG_EQ (route->GetDestination (), Ipv4Address ("1.2.3.4"), "trivial");
+
+ NS_TEST_EXPECT_MSG_EQ (rt.InsertPrecursor (Ipv4Address ("10.0.0.1")), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.IsPrecursorListEmpty (), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.InsertPrecursor (Ipv4Address ("10.0.0.2")), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.InsertPrecursor (Ipv4Address ("10.0.0.2")), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.LookupPrecursor (Ipv4Address ("10.0.0.3")), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.LookupPrecursor (Ipv4Address ("10.0.0.1")), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.DeletePrecursor (Ipv4Address ("10.0.0.2")), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.LookupPrecursor (Ipv4Address ("10.0.0.2")), false, "trivial");
+ std::vector<Ipv4Address> prec;
+ rt.GetPrecursors (prec);
+ NS_TEST_EXPECT_MSG_EQ (prec.size (), 1, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.InsertPrecursor (Ipv4Address ("10.0.0.4")), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.DeletePrecursor (Ipv4Address ("10.0.0.5")), false, "trivial");
+ rt.GetPrecursors (prec);
+ NS_TEST_EXPECT_MSG_EQ (prec.size (), 2, "trivial");
+ rt.DeleteAllPrecursors ();
+ NS_TEST_EXPECT_MSG_EQ (rt.IsPrecursorListEmpty (), true, "trivial");
+ rt.GetPrecursors (prec);
+ NS_TEST_EXPECT_MSG_EQ (prec.size (), 2, "trivial");
+
+ return GetErrorStatus ();
+ }
+};
+//-----------------------------------------------------------------------------
+/// Unit test for AODV routing table
+struct AodvRtableTest : public TestCase
+{
+ AodvRtableTest () : TestCase ("Rtable") {}
+ virtual bool DoRun()
+ {
+ RoutingTable rtable (Seconds (2));
+ NS_TEST_EXPECT_MSG_EQ (rtable.GetBadLinkLifetime (), Seconds (2), "trivial");
+ rtable.SetBadLinkLifetime (Seconds (1));
+ NS_TEST_EXPECT_MSG_EQ (rtable.GetBadLinkLifetime (), Seconds (1), "trivial");
+ Ptr<NetDevice> dev;
+ Ipv4InterfaceAddress iface;
+ RoutingTableEntry rt (/*output device*/dev, /*dst*/Ipv4Address("1.2.3.4"), /*validSeqNo*/true, /*seqNo*/10,
+ /*interface*/iface, /*hop*/5, /*next hop*/Ipv4Address("1.1.1.1"), /*lifetime*/Seconds(10));
+ NS_TEST_EXPECT_MSG_EQ (rtable.AddRoute (rt), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.AddRoute (rt), false, "trivial");
+ RoutingTableEntry rt2 (/*output device*/dev, /*dst*/Ipv4Address("4.3.2.1"), /*validSeqNo*/false, /*seqNo*/0,
+ /*interface*/iface, /*hop*/15, /*next hop*/Ipv4Address("1.1.1.1"), /*lifetime*/Seconds(1));
+ NS_TEST_EXPECT_MSG_EQ (rtable.AddRoute (rt2), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.LookupRoute (rt2.GetDestination (), rt), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt2.GetDestination (), rt.GetDestination (), "trivial");
+ rt.SetHop (20);
+ rt.InsertPrecursor (Ipv4Address ("10.0.0.3"));
+ NS_TEST_EXPECT_MSG_EQ (rtable.Update (rt), true, "trivial");
+ RoutingTableEntry rt3;
+ NS_TEST_EXPECT_MSG_EQ (rtable.LookupRoute (Ipv4Address ("10.0.0.1"), rt), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.Update (rt3), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.SetEntryState (Ipv4Address ("10.0.0.1"), INVALID), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.SetEntryState (Ipv4Address ("1.2.3.4"), IN_SEARCH), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.DeleteRoute (Ipv4Address ("5.5.5.5")), false, "trivial");
+ RoutingTableEntry rt4 (/*output device*/dev, /*dst*/Ipv4Address ("5.5.5.5"), /*validSeqNo*/false, /*seqNo*/0,
+ /*interface*/iface, /*hop*/15, /*next hop*/Ipv4Address ("1.1.1.1"), /*lifetime*/Seconds (-10));
+ NS_TEST_EXPECT_MSG_EQ (rtable.AddRoute (rt4), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.SetEntryState (Ipv4Address ("5.5.5.5"), INVALID), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.LookupRoute (Ipv4Address ("5.5.5.5"), rt), false, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.MarkLinkAsUnidirectional (Ipv4Address ("1.2.3.4"), Seconds (2)), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.LookupRoute (Ipv4Address ("1.2.3.4"), rt), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.IsUnidirectional (), true, "trivial");
+ rt.SetLifeTime (Seconds (-5));
+ NS_TEST_EXPECT_MSG_EQ (rtable.Update (rt), true, "trivial");
+ std::map<Ipv4Address, uint32_t> unreachable;
+ rtable.GetListOfDestinationWithNextHop (Ipv4Address ("1.1.1.1"), unreachable);
+ NS_TEST_EXPECT_MSG_EQ (unreachable.size (), 2, "trivial");
+ unreachable.insert (std::make_pair (Ipv4Address ("4.3.2.1"), 3));
+ rtable.InvalidateRoutesWithDst (unreachable);
+ NS_TEST_EXPECT_MSG_EQ (rtable.LookupRoute (Ipv4Address ("4.3.2.1"), rt), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rt.GetFlag (), INVALID, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.DeleteRoute (Ipv4Address ("1.2.3.4")), true, "trivial");
+ NS_TEST_EXPECT_MSG_EQ (rtable.DeleteRoute (Ipv4Address ("1.2.3.4")), false, "trivial");
+
+ return GetErrorStatus ();
+ }
+};
+//-----------------------------------------------------------------------------
+class AodvTestSuite : public TestSuite
+{
+public:
+ AodvTestSuite () : TestSuite ("routing-aodv", UNIT)
+ {
+ AddTestCase (new NeighborTest);
+ AddTestCase (new TypeHeaderTest);
+ AddTestCase (new RreqHeaderTest);
+ AddTestCase (new RrepHeaderTest);
+ AddTestCase (new RrepAckHeaderTest);
+ AddTestCase (new RerrHeaderTest);
+ AddTestCase (new QueueEntryTest);
+ AddTestCase (new AodvRqueueTest);
+ AddTestCase (new AodvRtableEntryTest);
+ AddTestCase (new AodvRtableTest);
+ }
+} g_aodvTestSuite;
+
+}}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/aodv.h Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,86 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Based on
+ * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
+ * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
+ *
+ * AODV-UU implementation by Erik Nordström of Uppsala University
+ * http://core.it.uu.se/core/index.php/AODV-UU
+ *
+ * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
+ * Pavel Boyko <boyko@iitp.ru>
+ */
+
+#ifndef AODV_H
+#define AODV_H
+
+/**
+ * \ingroup routing
+ * \defgroup aodv AODV
+ *
+ * This model implements the base specification of the Ad hoc on demand distance vector (AODV)
+ * protocol. Implementation is based on RFC3561.
+ *
+ * Class aodv::RoutingProtocol implements all functionality of service packet exchange and inherits Ipv4RoutingProtocol.
+ * Base class defines two virtual functions for packet routing and forwarding. The first one,
+ * RouteOutput(), is used for locally originated packets, and the second one, RouteInput(), is used for forwarding
+ * and/or delivering received packets.
+ *
+ * Protocol operation depends on the many adjustable parameters. Parameters for this functionality are attributes of
+ * aodv::RoutingProtocol. We support parameters, with their default values, from RFC and parameters that enable/disable
+ * protocol features, such as broadcasting HELLO messages, broadcasting data packets and so on.
+ *
+ * AODV discovers routes on demand. Therefore, our AODV model buffer all packets, while a route request packet (RREQ)
+ * is disseminated. We implement a packet queue in aodv-rqueue.cc. Smart pointer to packet, Ipv4RoutingProtocol::ErrorCallback,
+ * Ipv4RoutingProtocol::UnicastForwardCallback and IP header are stored in this queue. The packet queue implements garbage collection of old
+ * packets and a queue size limit.
+ *
+ * Routing table implementation support garbage collection of old entries and state machine, defined in standard.
+ * It implements as a STL map container. The key is a destination IP address.
+ *
+ * Some moments of protocol operation aren't described in RFC. This moments generally concern cooperation of different OSI model layers.
+ * We use following heuristics:
+ *
+ * 1) This AODV implementation can detect the presence of unidirectional links and avoid them if necessary.
+ * If the node we received a RREQ for is a neighbor we are probably facing a unidirectional link...
+ * This heuristic is taken from AODV-UU implementation and can be disabled.
+ *
+ * 2) Protocol operation strongly depends on broken link detection mechanism. We implements two such heuristics.
+ * First, this implementation support HELLO messages. However HELLO messages are not a good way to do neighbor sensing
+ * in a wireless environment (at least not over 802.11). Therefore, you may experience bad performance when running over wireless.
+ * There are several reasons for this:
+ * -# HELLO messages are broadcasted. In 802.11, broadcasting is done at a lower bit rate than unicasting,
+ * thus HELLO messages travel further than data.
+ * -# HELLO messages are small, thus less prone to bit errors than data transmissions.
+ * -# Broadcast transmissions are not guaranteed to be bidirectional, unlike unicast transmissions.
+ * Second, we use layer 2 feedback when possible. Link considered to be broken, if frame transmission results in a transmission
+ * failure for all retries. This mechanism meant for active links and work much more faster, than first method.
+ * Layer 2 feedback implementation relies on TxErrHeader trace source, currently it is supported in AdhocWifiMac only.
+ *
+ * 3) Duplicate packet detection. We use special class DuplicatePacketDetection for this purpose.
+ *
+ * Following optional protocol optimizations aren't implemented:
+ * - Expanding ring search.
+ * - Local link repair.
+ * - RREP, RREQ and HELLO message extensions.
+ * This techniques require direct access to IP header, which contradict assertion from AODV RFC that AODV works over UDP. Our model use UDP
+ * for simplicity, but this disable us to implement protocol optimizations. We don't use low layer raw socket, because they are not portable.
+ *
+ */
+
+#endif /* AODV_H */
Binary file src/routing/aodv/test/aodv-chain-regression-test-0-0.pcap has changed
Binary file src/routing/aodv/test/aodv-chain-regression-test-1-0.pcap has changed
Binary file src/routing/aodv/test/aodv-chain-regression-test-2-0.pcap has changed
Binary file src/routing/aodv/test/aodv-chain-regression-test-3-0.pcap has changed
Binary file src/routing/aodv/test/aodv-chain-regression-test-4-0.pcap has changed
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/test/aodv-regression.cc Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,171 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Authors: Pavel Boyko <boyko@iitp.ru>
+ */
+
+#include "aodv-regression.h"
+
+#include "ns3/mesh-helper.h"
+#include "ns3/simulator.h"
+#include "ns3/random-variable.h"
+#include "ns3/mobility-helper.h"
+#include "ns3/double.h"
+#include "ns3/uinteger.h"
+#include "ns3/string.h"
+#include "ns3/boolean.h"
+#include "ns3/yans-wifi-helper.h"
+#include "ns3/internet-stack-helper.h"
+#include "ns3/ipv4-address-helper.h"
+#include "ns3/abort.h"
+#include "ns3/udp-echo-helper.h"
+#include "ns3/mobility-model.h"
+#include "ns3/pcap-file.h"
+#include "ns3/aodv-helper.h"
+#include "ns3/v4ping-helper.h"
+#include "ns3/nqos-wifi-mac-helper.h"
+#include <sstream>
+
+/// Set to true to rewrite reference traces, leave false to run regression tests
+const bool WRITE_VECTORS = false;
+
+namespace ns3 {
+namespace aodv {
+//-----------------------------------------------------------------------------
+// Test suite
+//-----------------------------------------------------------------------------
+class AodvRegressionTestSuite : public TestSuite
+{
+public:
+ AodvRegressionTestSuite () : TestSuite ("routing-aodv-regression", SYSTEM)
+ {
+ AddTestCase (new ChainRegressionTest);
+ }
+} g_aodvRegressionTestSuite;
+
+
+//-----------------------------------------------------------------------------
+// ChainRegressionTest
+//-----------------------------------------------------------------------------
+/// Unique PCAP files prefix for this test
+const char * const ChainRegressionTest::PREFIX = "aodv-chain-regression-test";
+
+ChainRegressionTest::ChainRegressionTest () : TestCase ("AODV chain regression test"),
+ m_nodes (0),
+ m_time (Seconds (10)),
+ m_size (5),
+ m_step (120)
+{
+}
+
+ChainRegressionTest::~ChainRegressionTest ()
+{
+ delete m_nodes;
+}
+
+bool
+ChainRegressionTest::DoRun ()
+{
+ SeedManager::SetSeed(12345);
+ CreateNodes ();
+ CreateDevices ();
+
+ // At m_time / 3 move central node away and see what will happen
+ Ptr<Node> node = m_nodes->Get (m_size / 2);
+ Ptr<MobilityModel> mob = node->GetObject<MobilityModel> ();
+ Simulator::Schedule (m_time / Scalar(3.0), &MobilityModel::SetPosition, mob, Vector (1e5, 1e5, 1e5));
+
+ Simulator::Stop (m_time);
+ Simulator::Run ();
+ Simulator::Destroy ();
+
+ if (!WRITE_VECTORS) CheckResults ();
+
+ delete m_nodes, m_nodes = 0;
+ return GetErrorStatus ();
+}
+
+void
+ChainRegressionTest::CreateNodes ()
+{
+ m_nodes = new NodeContainer;
+ m_nodes->Create (m_size);
+ MobilityHelper mobility;
+ mobility.SetPositionAllocator ("ns3::GridPositionAllocator",
+ "MinX", DoubleValue (0.0),
+ "MinY", DoubleValue (0.0),
+ "DeltaX", DoubleValue (m_step),
+ "DeltaY", DoubleValue (0),
+ "GridWidth", UintegerValue (m_size),
+ "LayoutType", StringValue ("RowFirst"));
+ mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+ mobility.Install (*m_nodes);
+}
+
+void
+ChainRegressionTest::CreateDevices ()
+{
+ // 1. Setup WiFi
+ NqosWifiMacHelper wifiMac = NqosWifiMacHelper::Default ();
+ wifiMac.SetType ("ns3::AdhocWifiMac");
+ YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default ();
+ YansWifiChannelHelper wifiChannel = YansWifiChannelHelper::Default ();
+ wifiPhy.SetChannel (wifiChannel.Create ());
+ WifiHelper wifi = WifiHelper::Default ();
+ wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager", "DataMode", StringValue ("wifia-6mbs"), "RtsCtsThreshold", StringValue ("2200"));
+ NetDeviceContainer devices = wifi.Install (wifiPhy, wifiMac, *m_nodes);
+
+ // 2. Setup TCP/IP & AODV
+ AodvHelper aodv; // Use default parameters here
+ InternetStackHelper internetStack;
+ internetStack.SetRoutingHelper (aodv);
+ internetStack.Install (*m_nodes);
+ Ipv4AddressHelper address;
+ address.SetBase ("10.1.1.0", "255.255.255.0");
+ Ipv4InterfaceContainer interfaces = address.Assign (devices);
+
+ // 3. Setup ping
+ V4PingHelper ping (interfaces.GetAddress (m_size - 1));
+ ping.SetAttribute ("Verbose", BooleanValue (false)); // don't need verbose ping in regression test
+ ApplicationContainer p = ping.Install (m_nodes->Get (0));
+ p.Start (Seconds (0));
+ p.Stop (m_time);
+
+ // 4. write PCAP
+ std::string prefix = (WRITE_VECTORS ? NS_TEST_SOURCEDIR : GetTempDir ()) + PREFIX;
+ wifiPhy.EnablePcapAll (prefix);
+}
+
+void
+ChainRegressionTest::CheckResults ()
+{
+ for (uint32_t i = 0; i < m_size; ++i)
+ {
+ std::ostringstream os1, os2;
+ // File naming conventions are hard-coded here.
+ os1 << NS_TEST_SOURCEDIR << PREFIX << "-" << i << "-0.pcap";
+ os2 << GetTempDir () << PREFIX << "-" << i << "-0.pcap";
+
+ uint32_t sec(0), usec(0);
+ bool diff = PcapFile::Diff (os1.str(), os2.str(), sec, usec);
+ NS_TEST_EXPECT_MSG_EQ (diff, false, "PCAP traces " << os1.str() << " and " << os2.str()
+ << " differ starting from " << sec << " s " << usec << " us");
+ }
+}
+
+}
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/test/aodv-regression.h Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,184 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 IITP RAS
+ *
+ * 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
+ *
+ * Authors: Pavel Boyko <boyko@iitp.ru>
+ */
+
+#ifndef AODVREGRESSION_H_
+#define AODVREGRESSION_H_
+
+#include "ns3/test.h"
+#include "ns3/nstime.h"
+#include "ns3/node-container.h"
+
+namespace ns3 {
+namespace aodv {
+
+/**
+ * \ingroup aodv
+ *
+ * \brief AODV chain regression test
+ *
+ * This script creates 1-dimensional grid topology and then ping last node from the first one:
+ *
+ * [10.1.1.1] <-- step --> [10.1.1.2] <-- step --> [10.1.1.3] <-- step --> [10.1.1.4] <-- step --> [10.1.1.5]
+ *
+ * Each node can hear only his right and his left neighbor, if they exist. When one third of total time expired,
+ * central node moves away. After this, node 3 doesn't hear any packets from other nodes and nobody hears his packets.
+ * We want to demonstrate in this script
+ * 1) route establishing
+ * 2) broken link detection both from layer 2 information and hello messages.
+ *
+ * \verbatim
+ Expected packets time diagram.
+ 1 2 3 4 5
+ <------|------>| | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, U=1, hop=0, ID=1, org_seqno=1) src = 10.1.1.1
+ |<------|------>| | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, U=1, hop=1, ID=1, org_seqno=1) src = 10.1.1.2
+ | |<------|------>| | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, U=1, hop=2, ID=1, org_seqno=1) src = 10.1.1.3
+ | | |<------|------>| RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, U=1, hop=3, ID=1, org_seqno=1) src = 10.1.1.4
+ | | | |<------|------> ARP request. Who has 10.1.1.4? Tell 10.1.1.5
+ | | | |======>| ARP reply
+ | | | |<======| RREP (orig 10.1.1.1, dst 10.1.1.5, hop=0, dst_seqno=0) src=10.1.1.5
+ | | |<------|------>| ARP request. Who has 10.1.1.3? Tell 10.1.1.4
+ | | |======>| | ARP reply
+ | | |<======| | RREP (orig 10.1.1.1, dst 10.1.1.5, hop=1, dst_seqno=0) src=10.1.1.4
+ | |<------|------>| | ARP request. Who has 10.1.1.2? Tell 10.1.1.3
+ | |======>| | | ARP reply
+ | |<======| | | RREP (orig 10.1.1.1, dst 10.1.1.5, hop=2, dst_seqno=0) src=10.1.1.3
+ |<------|------>| | | ARP request. Who has 10.1.1.1? Tell 10.1.1.2
+ |======>| | | | ARP reply
+ |<======| | | | RREP (orig 10.1.1.1, dst 10.1.1.5, hop=3, dst_seqno=0) src=10.1.1.2
+ <-------|------>| | | | ARP request. Who has 10.1.1.2? Tell 10.1.1.1
+ |<======| | | |
+ |======>| | | | ICMP (ping) request 0 from 10.1.1.1 to 10.1.1.5; src=10.1.1.1 next_hop=10.1.1.2
+ |<------|------>| | | ARP request. Who has 10.1.1.3? Tell 10.1.1.2
+ | |<======| | | ARP reply
+ | |======>| | | ICMP (ping) request 0 from 10.1.1.1 to 10.1.1.5; src=10.1.1.2 next_hop=10.1.1.3
+ | |<------|------>| | ARP request. Who has 10.1.1.4? Tell 10.1.1.3
+ | | |<======| | ARP reply
+ | | |======>| | ICMP (ping) request 0 from 10.1.1.1 to 10.1.1.5; src=10.1.1.3 next_hop=10.1.1.4
+ | | |<------|------>| ARP request. Who has 10.1.1.5? Tell 10.1.1.4
+ | | | |<======| ARP reply
+ | | | |======>| ICMP (ping) request 0; src=10.1.1.4 next_hop=10.1.1.5
+ | | | |<======| ICMP (ping) reply 0; src=10.1.1.5 next_hop=10.1.1.4
+ | | |<======| | ICMP (ping) reply 0; src=10.1.1.4 next_hop=10.1.1.3
+ | |<======| | | ICMP (ping) reply 0; src=10.1.1.3 next_hop=10.1.1.2
+ |<======| | | | ICMP (ping) reply 0; src=10.1.1.2 next_hop=10.1.1.1
+ | | | |<------|------> Hello
+ |<------|------>| | | Hello
+ <------|------>| | | | Hello
+ | |<------|------>| | Hello
+ |======>| | | | ICMP (ping) request 1; src=10.1.1.1 next_hop=10.1.1.2
+ | | |<------|------>| Hello
+ | |======>| | | ICMP (ping) request 1; src=10.1.1.2 next_hop=10.1.1.3
+ | | |======>| | ICMP (ping) request 1; src=10.1.1.3 next_hop=10.1.1.4
+ | | | |======>| ICMP (ping) request 1; src=10.1.1.4 next_hop=10.1.1.5
+ | | | |<======| ICMP (ping) reply 1; src=10.1.1.5 next_hop=10.1.1.4
+ | | |<======| | ICMP (ping) reply 1; src=10.1.1.4 next_hop=10.1.1.3
+ | |<======| | | ICMP (ping) reply 11; src=10.1.1.3 next_hop=10.1.1.2
+ |<======| | | | ICMP (ping) reply 1; src=10.1.1.2 next_hop=10.1.1.1
+ | | | |<------|------> Hello
+ |<------|------>| | | Hello
+ <------|------>| | | | Hello
+ | | |<------|------>| Hello
+ | |<------|------>| | Hello
+ |======>| | | | ICMP (ping) request 2; src=10.1.1.1 next_hop=10.1.1.2
+ | |======>| | | ICMP (ping) request 2; src=10.1.1.2 next_hop=10.1.1.3
+ | | |======>| | ICMP (ping) request 2; src=10.1.1.3 next_hop=10.1.1.4
+ | | | |======>| ICMP (ping) request 2; src=10.1.1.4 next_hop=10.1.1.5
+ | | | |<======| ICMP (ping) reply 2; src=10.1.1.5 next_hop=10.1.1.4
+ | | |<======| | ICMP (ping) reply 2; src=10.1.1.4 next_hop=10.1.1.3
+ | |<======| | | ICMP (ping) reply 2; src=10.1.1.3 next_hop=10.1.1.2
+ |<======| | | | ICMP (ping) reply 2; src=10.1.1.2 next_hop=10.1.1.1
+ | | | |<------|------> Hello
+ <------|------>| | | | Hello
+ | |<------|------>| | Hello
+ |<------|------>| | | Hello
+ | | |<------|------>| Hello
+ |======>| | | | ICMP (ping) request 3; src=10.1.1.1 next_hop=10.1.1.2
+ | |======>| | | ICMP (ping) request 3; src=10.1.1.2 next_hop=10.1.1.3
+ | | |======>| | ICMP (ping) request 3; src=10.1.1.3 next_hop=10.1.1.4
+ | | | |======>| ICMP (ping) request 3; src=10.1.1.4 next_hop=10.1.1.5
+ | | | |<======| ICMP (ping) reply 3; src=10.1.1.5 next_hop=10.1.1.4
+ | | |<======| | ICMP (ping) reply 3; src=10.1.1.4 next_hop=10.1.1.3
+ | |<======| | | ICMP (ping) reply 3; src=10.1.1.3 next_hop=10.1.1.2
+ |<======| | | | ICMP (ping) reply 3; src=10.1.1.2 next_hop=10.1.1.1
+ | | | |<------|------> Hello
+ <------|------>| | | | Hello
+ |<------|--> | | | Hello |
+ | | <--|--> | | Hello |Node 3 move away => nobody hear his packets and node 3 doesn't hear anything !
+ | | | <--|------>| Hello |
+ |======>| | | | ICMP (ping) request 4; src=10.1.1.1 next_hop=10.1.1.2
+ | |==> | | | ICMP (ping) request 4; src=10.1.1.2 next_hop=10.1.1.3. 7 retries.
+ |<======| | | | RERR (unreachable dst 10.1.1.3 & 10.1.1.5) src=10.1.1.2
+ | | | |<------|------> Hello
+ <------|------>| | | | Hello
+ |<------|--> | | | Hello
+ | | <--|--> | | Hello
+ | | | <--|------>| Hello
+ <------|------>| | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=0, ID=2, org_seqno=2) src = 10.1.1.1
+ |<------|--> | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=1, ID=2, org_seqno=1) src = 10.1.1.2
+ | | | |<------|------> Hello
+ | | | <--|------>| Hello
+ | | <--|--> | | Hello
+ <------|------>| | | | Hello
+ <------|------>| | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=0, ID=3, org_seqno=3) src = 10.1.1.1
+ |<------|--> | | | Hello
+ |<------|--> | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=1, ID=3, org_seqno=3) src = 10.1.1.2
+ | | | |======>| RERR (unreachable dst 10.1.1.1 & 10.1.1.3) src=10.1.1.4
+ | | | |<------|------> Hello
+ | | | <--|------>| Hello
+ | | <--|--> | | Hello
+ |<------|--> | | | Hello
+ <------|------>| | | | Hello
+ <------|------>| | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=0, ID=4, org_seqno=4) src = 10.1.1.1
+ |<------|--> | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=1, ID=4, org_seqno=4) src = 10.1.1.2
+
+..................................................................
+ * \endverbatim
+ */
+class ChainRegressionTest : public TestCase
+{
+public:
+ ChainRegressionTest ();
+ ~ChainRegressionTest ();
+private:
+ /// Unique PCAP files prefix for this test
+ static const char * const PREFIX;
+ /// XXX It is important to have pointers here
+ NodeContainer * m_nodes;
+
+ /// Total simulation time
+ const Time m_time;
+ /// Chain size
+ const uint32_t m_size;
+ /// Chain step, meters
+ const double m_step;
+
+ /// Create test topology
+ void CreateNodes ();
+ /// Create devices, install TCP/IP stack and applications
+ void CreateDevices ();
+ /// Compare traces with reference ones
+ void CheckResults ();
+ /// Go
+ bool DoRun ();
+};
+
+}
+}
+#endif /* AODVREGRESSION_H_ */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/waf Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,1 @@
+exec "`dirname "$0"`"/../../../../waf "$@"
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/routing/aodv/wscript Wed Nov 18 13:01:17 2009 +0300
@@ -0,0 +1,29 @@
+## -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
+
+def build(bld):
+ module = bld.create_ns3_module('aodv', ['internet-stack', 'contrib'])
+ module.includes = '.'
+ module.source = [
+ 'aodv-id-cache.cc',
+ 'aodv-dpd.cc',
+ 'aodv-rtable.cc',
+ 'aodv-rqueue.cc',
+ 'aodv-packet.cc',
+ 'aodv-neighbor.cc',
+ 'aodv-routing-protocol.cc',
+ 'aodv-test-suite.cc',
+ 'test/aodv-regression.cc',
+ ]
+
+ headers = bld.new_task_gen('ns3header')
+ headers.module = 'aodv'
+ headers.source = [
+ 'aodv-id-cache.h',
+ 'aodv-dpd.h',
+ 'aodv-rtable.h',
+ 'aodv-rqueue.h',
+ 'aodv-packet.h',
+ 'aodv-neighbor.h',
+ 'aodv-routing-protocol.h',
+ ]
+
--- a/src/routing/manet/aodv/aodv-dpd.cc Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,50 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-
-#include "aodv-dpd.h"
-
-namespace ns3
-{
-namespace aodv
-{
-
-bool
-DuplicatePacketDetection::IsDuplicate (Ptr<const Packet> p, const Ipv4Header & header)
-{
- return m_idCache.IsDuplicate (header.GetSource (), p->GetUid() );
-}
-void
-DuplicatePacketDetection::SetLifetime (Time lifetime)
-{
- m_idCache.SetLifetime(lifetime);
-}
-
-Time
-DuplicatePacketDetection::GetLifetime () const
-{
- return m_idCache.GetLifeTime();
-}
-
-
-}
-}
-
--- a/src/routing/manet/aodv/aodv-dpd.h Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,62 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-
-#ifndef DUPLICATEPACKETDETECTION_H_
-#define DUPLICATEPACKETDETECTION_H_
-
-#include "aodv-id-cache.h"
-#include "ns3/nstime.h"
-#include "ns3/packet.h"
-#include "ns3/ipv4-header.h"
-
-namespace ns3
-{
-namespace aodv
-{
-/**
- * \ingroup aodv
- *
- * \brief Helper class used to remember already seen packets and detect duplicates.
- *
- * Currently duplicate detection is based on uinique packet ID given by Packet::GetUid ()
- * This approach is known to be weak and should be changed.
- */
-class DuplicatePacketDetection
-{
-public:
- /// C-tor
- DuplicatePacketDetection (Time lifetime) : m_idCache(lifetime) {}
- /// Check that the packet is duplicated. If not, save information about this packet.
- bool IsDuplicate (Ptr<const Packet> p, const Ipv4Header & header);
- /// Set duplicate records lifetimes
- void SetLifetime (Time lifetime);
- /// Get duplicate records lifetimes
- Time GetLifetime () const;
-private:
- /// Impl
- IdCache m_idCache;
-};
-
-}
-}
-
-#endif
--- a/src/routing/manet/aodv/aodv-id-cache.cc Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,131 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-#include "aodv-id-cache.h"
-#include "ns3/test.h"
-#include <algorithm>
-
-namespace ns3
-{
-namespace aodv
-{
-bool
-IdCache::IsDuplicate (Ipv4Address addr, uint32_t id)
-{
- Purge ();
- for (std::vector<UniqueId>::const_iterator i = m_idCache.begin ();
- i != m_idCache.end (); ++i)
- if (i->m_context == addr && i->m_id == id)
- return true;
- struct UniqueId uniqueId =
- { addr, id, m_lifetime + Simulator::Now () };
- m_idCache.push_back (uniqueId);
- return false;
-}
-void
-IdCache::Purge ()
-{
- m_idCache.erase (remove_if (m_idCache.begin (), m_idCache.end (),
- IsExpired ()), m_idCache.end ());
-}
-
-uint32_t
-IdCache::GetSize ()
-{
- Purge ();
- return m_idCache.size ();
-}
-
-//-----------------------------------------------------------------------------
-// Tests
-//-----------------------------------------------------------------------------
-/// Unit test for id cache
-struct IdCacheTest : public TestCase
-{
- IdCacheTest () : TestCase ("Id Cache"), cache (Seconds(10))
- {}
- virtual bool DoRun();
- void CheckTimeout1 ();
- void CheckTimeout2 ();
- void CheckTimeout3 ();
-
- IdCache cache;
-};
-
-bool
-IdCacheTest::DoRun ()
-{
- NS_TEST_EXPECT_MSG_EQ (cache.GetLifeTime(), Seconds(10), "Lifetime");
- NS_TEST_EXPECT_MSG_EQ (cache.IsDuplicate (Ipv4Address ("1.2.3.4"), 3), false, "Unknown ID & address");
- NS_TEST_EXPECT_MSG_EQ (cache.IsDuplicate (Ipv4Address ("1.2.3.4"), 4), false, "Unknown ID");
- NS_TEST_EXPECT_MSG_EQ (cache.IsDuplicate (Ipv4Address ("4.3.2.1"), 3), false, "Unknown address");
- NS_TEST_EXPECT_MSG_EQ (cache.IsDuplicate (Ipv4Address ("1.2.3.4"), 3), true, "Known address & ID");
- cache.SetLifetime(Seconds(15));
- NS_TEST_EXPECT_MSG_EQ (cache.GetLifeTime(), Seconds(15), "New lifetime");
- cache.IsDuplicate (Ipv4Address ("1.1.1.1"), 4);
- cache.IsDuplicate (Ipv4Address ("1.1.1.1"), 4);
- cache.IsDuplicate (Ipv4Address ("2.2.2.2"), 5);
- cache.IsDuplicate (Ipv4Address ("3.3.3.3"), 6);
- NS_TEST_EXPECT_MSG_EQ (cache.GetSize (), 6, "trivial");
-
- Simulator::Schedule (Seconds(5), &IdCacheTest::CheckTimeout1, this);
- Simulator::Schedule (Seconds(11), &IdCacheTest::CheckTimeout2, this);
- Simulator::Schedule (Seconds(30), &IdCacheTest::CheckTimeout3, this);
- Simulator::Run ();
- Simulator::Destroy ();
-
- return GetErrorStatus ();
-}
-
-void
-IdCacheTest::CheckTimeout1 ()
-{
- NS_TEST_EXPECT_MSG_EQ (cache.GetSize (), 6, "Nothing expire");
-}
-
-void
-IdCacheTest::CheckTimeout2 ()
-{
- NS_TEST_EXPECT_MSG_EQ (cache.GetSize (), 3, "3 records left");
-}
-
-void
-IdCacheTest::CheckTimeout3 ()
-{
- NS_TEST_EXPECT_MSG_EQ (cache.GetSize (), 0, "All records expire");
-}
-//-----------------------------------------------------------------------------
-class IdCacheTestSuite : public TestSuite
-{
-public:
- IdCacheTestSuite () : TestSuite ("routing-id-cache", UNIT)
- {
- AddTestCase (new IdCacheTest);
- }
-} g_idCacheTestSuite;
-
-}}
--- a/src/routing/manet/aodv/aodv-id-cache.h Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,86 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-
-#ifndef IDCACHE_H_
-#define IDCACHE_H_
-
-#include "ns3/ipv4-address.h"
-#include "ns3/simulator.h"
-#include <vector>
-
-namespace ns3
-{
-namespace aodv
-{
-/**
- * \ingroup aodv
- *
- * \brief Unique packets identification cache used for simple duplicate detection.
- */
-class IdCache
-{
-public:
- /// c-tor
- IdCache (Time lifetime): m_lifetime (lifetime) {}
- /// Check that entry (addr, id) exists in cache. Add entry, if it doesn't exist.
- bool IsDuplicate (Ipv4Address addr, uint32_t id);
- /// Remove all expired entries
- void Purge ();
- /// Return number of entries in cache
- uint32_t GetSize ();
- /// Set lifetime for future added entries.
- void SetLifetime (Time lifetime) { m_lifetime = lifetime; }
- /// Return lifetime for existing entries in cache
- Time GetLifeTime () const { return m_lifetime; }
-private:
- /// Unique packet ID
- struct UniqueId
- {
- /// ID is supposed to be unique in single address context (e.g. sender address)
- Ipv4Address m_context;
- /// The id
- uint32_t m_id;
- /// When record will expire
- Time m_expire;
- };
- struct IsExpired
- {
- bool operator() (const struct UniqueId & u) const
- {
- return (u.m_expire < Simulator::Now ());
- }
- };
- /// Already seen IDs
- std::vector<UniqueId> m_idCache;
- /// Default lifetime for ID records
- Time m_lifetime;
-};
-
-}
-}
-#endif /* IDCACHE_H_ */
--- a/src/routing/manet/aodv/aodv-neighbor.cc Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,173 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-
-#include "aodv-neighbor.h"
-#include "ns3/log.h"
-#include <algorithm>
-
-NS_LOG_COMPONENT_DEFINE ("AodvNeighbors");
-
-namespace ns3
-{
-namespace aodv
-{
-Neighbors::Neighbors (Time delay) :
- m_ntimer (Timer::CANCEL_ON_DESTROY)
-{
- m_ntimer.SetDelay(delay);
- m_ntimer.SetFunction(&Neighbors::Purge, this);
- m_txErrorCallback = MakeCallback (& Neighbors::ProcessTxError, this);
-}
-
-bool
-Neighbors::IsNeighbor (Ipv4Address addr)
-{
- Purge ();
- for (std::vector<Neighbor>::const_iterator i = m_nb.begin ();
- i != m_nb.end (); ++i)
- {
- if (i->m_neighborAddress == addr)
- return true;
- }
- return false;
-}
-
-Time
-Neighbors::GetExpireTime (Ipv4Address addr)
-{
- Purge ();
- for (std::vector<Neighbor>::const_iterator i = m_nb.begin (); i
- != m_nb.end (); ++i)
- {
- if (i->m_neighborAddress == addr)
- return (i->m_expireTime - Simulator::Now ());
- }
- return Seconds (0);
-}
-
-void
-Neighbors::Update (Ipv4Address addr, Time expire)
-{
- for (std::vector<Neighbor>::iterator i = m_nb.begin (); i != m_nb.end (); ++i)
- if (i->m_neighborAddress == addr)
- {
- i->m_expireTime
- = std::max (expire + Simulator::Now (), i->m_expireTime);
- if (i->m_hardwareAddress == Mac48Address ())
- i->m_hardwareAddress = LookupMacAddress (i->m_neighborAddress);
- return;
- }
-
- NS_LOG_LOGIC ("Open link to " << addr);
- Neighbor neighbor (addr, LookupMacAddress (addr), expire + Simulator::Now ());
- m_nb.push_back (neighbor);
- Purge ();
-}
-
-struct CloseNeighbor
-{
- bool operator() (const Neighbors::Neighbor & nb) const
- {
- return ((nb.m_expireTime < Simulator::Now ()) || nb.close);
- }
-};
-
-void
-Neighbors::Purge ()
-{
- if (m_nb.empty ())
- return;
-
- CloseNeighbor pred;
- if (!m_handleLinkFailure.IsNull ())
- {
- for (std::vector<Neighbor>::iterator j = m_nb.begin (); j != m_nb.end (); ++j)
- {
- if (pred (*j))
- {
- NS_LOG_LOGIC ("Close link to " << j->m_neighborAddress);
- m_handleLinkFailure (j->m_neighborAddress);
- }
- }
- }
- m_nb.erase (std::remove_if (m_nb.begin (), m_nb.end (), pred), m_nb.end ());
- m_ntimer.Cancel ();
- m_ntimer.Schedule ();
-}
-
-void
-Neighbors::ScheduleTimer ()
-{
- m_ntimer.Cancel ();
- m_ntimer.Schedule ();
-}
-
-void
-Neighbors::AddArpCache (Ptr<ArpCache> a)
-{
- m_arp.push_back (a);
-}
-
-void
-Neighbors::DelArpCache (Ptr<ArpCache> a)
-{
- m_arp.erase (std::remove (m_arp.begin (), m_arp.end (), a), m_arp.end ());
-}
-
-Mac48Address
-Neighbors::LookupMacAddress (Ipv4Address addr)
-{
- Mac48Address hwaddr;
- for (std::vector<Ptr<ArpCache> >::const_iterator i = m_arp.begin ();
- i != m_arp.end (); ++i)
- {
- ArpCache::Entry * entry = (*i)->Lookup (addr);
- if (entry != 0 && entry->IsAlive () && !entry->IsExpired ())
- {
- hwaddr = Mac48Address::ConvertFrom (entry->GetMacAddress ());
- break;
- }
- }
- return hwaddr;
-}
-
-void
-Neighbors::ProcessTxError (WifiMacHeader const & hdr)
-{
- Mac48Address addr = hdr.GetAddr1 ();
-
- for (std::vector<Neighbor>::iterator i = m_nb.begin (); i != m_nb.end (); ++i)
- {
- if (i->m_hardwareAddress == addr)
- i->close = true;
- }
- Purge ();
-}
-}
-}
-
--- a/src/routing/manet/aodv/aodv-neighbor.h Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,114 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-
-#ifndef AODVNEIGHBOR_H
-#define AODVNEIGHBOR_H
-
-#include "ns3/simulator.h"
-#include "ns3/timer.h"
-#include "ns3/ipv4-address.h"
-#include "ns3/callback.h"
-#include "ns3/wifi-mac-header.h"
-#include "ns3/arp-cache.h"
-#include <vector>
-
-namespace ns3
-{
-namespace aodv
-{
-class RoutingProtocol;
-/**
- * \ingroup aodv
- * \brief maintain list of active neighbors
- */
-class Neighbors
-{
-public:
- /// c-tor
- Neighbors (Time delay);
- /// Neighbor description
- struct Neighbor
- {
- Ipv4Address m_neighborAddress;
- Mac48Address m_hardwareAddress;
- Time m_expireTime;
- bool close;
-
- Neighbor (Ipv4Address ip, Mac48Address mac, Time t) :
- m_neighborAddress (ip), m_hardwareAddress (mac), m_expireTime (t),
- close (false)
- {
- }
- };
- /// Return expire time for neighbor node with address addr, if exists, else return 0.
- Time GetExpireTime (Ipv4Address addr);
- /// Check that node with address addr is neighbor
- bool IsNeighbor (Ipv4Address addr);
- /// Update expire time for entry with address addr, if it exists, else add new entry
- void Update (Ipv4Address addr, Time expire);
- /// Remove all expired entries
- void Purge ();
- /// Schedule m_ntimer.
- void ScheduleTimer ();
- /// Remove all entries
- void Clear () { m_nb.clear (); }
-
- /// Add ARP cache to be used to allow layer 2 notifications processing
- void AddArpCache (Ptr<ArpCache>);
- /// Don't use given ARP cache any more (interface is down)
- void DelArpCache (Ptr<ArpCache>);
- /// Get callback to ProcessTxError
- Callback<void, WifiMacHeader const &> GetTxErrorCallback () const { return m_txErrorCallback; }
-
- ///\name Handle link failure callback
- //\{
- void SetCallback (Callback<void, Ipv4Address> cb) { m_handleLinkFailure = cb;}
- Callback<void, Ipv4Address> GetCallback () const { return m_handleLinkFailure; }
- //\}
-private:
- /// link failure callback
- Callback<void, Ipv4Address> m_handleLinkFailure;
- /// TX error callback
- Callback<void, WifiMacHeader const &> m_txErrorCallback;
- /// Timer for neighbor's list. Schedule Purge().
- Timer m_ntimer;
- /// vector of entries
- std::vector<Neighbor> m_nb;
- /// list of ARP cached to be used for layer 2 notifications processing
- std::vector<Ptr<ArpCache> > m_arp;
-
- /// Find MAC address by IP using list of ARP caches
- Mac48Address LookupMacAddress (Ipv4Address);
- /// Process layer 2 TX error notification
- void ProcessTxError (WifiMacHeader const &);
-};
-
-}
-}
-
-#endif /* AODVNEIGHBOR_H */
--- a/src/routing/manet/aodv/aodv-packet.cc Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,580 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-#include "aodv-packet.h"
-#include "ns3/address-utils.h"
-#include "ns3/packet.h"
-
-namespace ns3
-{
-namespace aodv
-{
-
-TypeHeader::TypeHeader (MessageType t) :
- m_type (t), m_valid (true)
-{
-}
-
-TypeId
-TypeHeader::GetInstanceTypeId () const
-{
- return TypeId ();
-}
-
-uint32_t
-TypeHeader::GetSerializedSize () const
-{
- return 1;
-}
-
-void
-TypeHeader::Serialize (Buffer::Iterator i) const
-{
- i.WriteU8 ((uint8_t) m_type);
-}
-
-uint32_t
-TypeHeader::Deserialize (Buffer::Iterator start)
-{
- Buffer::Iterator i = start;
- uint8_t type = i.ReadU8 ();
- m_valid = true;
- switch (type)
- {
- case AODVTYPE_RREQ:
- case AODVTYPE_RREP:
- case AODVTYPE_RERR:
- case AODVTYPE_RREP_ACK:
- {
- m_type = (MessageType) type;
- break;
- }
- default:
- m_valid = false;
- }
- uint32_t dist = i.GetDistanceFrom (start);
- NS_ASSERT (dist == GetSerializedSize ());
- return dist;
-}
-
-void
-TypeHeader::Print (std::ostream &os) const
-{
- switch (m_type)
- {
- case AODVTYPE_RREQ:
- {
- os << "RREQ" << "\n";
- break;
- }
- case AODVTYPE_RREP:
- {
- os << "RREP" << "\n";
- break;
- }
- case AODVTYPE_RERR:
- {
- os << "RERR" << "\n";
- break;
- }
- case AODVTYPE_RREP_ACK:
- {
- os << "RREP_ACK" << "\n";
- break;
- }
- default:
- os << "UNKNOWN_TYPE";
- }
-}
-
-bool
-TypeHeader::operator== (TypeHeader const & o) const
-{
- return (m_type == o.m_type && m_valid == o.m_valid);
-}
-
-std::ostream &
-operator<< (std::ostream & os, TypeHeader const & h)
-{
- h.Print (os);
- return os;
-}
-
-//-----------------------------------------------------------------------------
-// RREQ
-//-----------------------------------------------------------------------------
-RreqHeader::RreqHeader (uint8_t flags, uint8_t reserved, uint8_t hopCount, uint32_t requestID, Ipv4Address dst,
- uint32_t dstSeqNo, Ipv4Address origin, uint32_t originSeqNo) :
- m_flags (flags), m_reserved (reserved), m_hopCount (hopCount), m_requestID (requestID), m_dst(dst),
- m_dstSeqNo (dstSeqNo), m_origin(origin), m_originSeqNo (originSeqNo)
-{
-}
-
-TypeId
-RreqHeader::GetInstanceTypeId () const
-{
- return TypeId ();
-}
-
-uint32_t
-RreqHeader::GetSerializedSize () const
-{
- return 23;
-}
-
-void
-RreqHeader::Serialize (Buffer::Iterator i) const
-{
- i.WriteU8 (m_flags);
- i.WriteU8 (m_reserved);
- i.WriteU8 (m_hopCount);
- i.WriteHtonU32 (m_requestID);
- WriteTo (i, m_dst);
- i.WriteHtonU32 (m_dstSeqNo);
- WriteTo (i, m_origin);
- i.WriteHtonU32 (m_originSeqNo);
-}
-
-uint32_t
-RreqHeader::Deserialize (Buffer::Iterator start)
-{
- Buffer::Iterator i = start;
- m_flags = i.ReadU8 ();
- m_reserved = i.ReadU8 ();
- m_hopCount = i.ReadU8 ();
- m_requestID = i.ReadNtohU32 ();
- ReadFrom (i, m_dst);
- m_dstSeqNo = i.ReadNtohU32 ();
- ReadFrom (i, m_origin);
- m_originSeqNo = i.ReadNtohU32 ();
-
- uint32_t dist = i.GetDistanceFrom (start);
- NS_ASSERT (dist == GetSerializedSize ());
- return dist;
-}
-
-void
-RreqHeader::Print (std::ostream &os) const
-{
- os << "RREQ ID " << m_requestID << "\n" << "destination: ipv4 " << m_dst
- << " " << "sequence number " << m_dstSeqNo << "\n" << "source: ipv4 "
- << m_origin << " " << "sequence number " << m_originSeqNo << "\n"
- << "flags:\n" << "Gratuitous RREP " << (*this).GetGratiousRrep () << "\n"
- << "Destination only " << (*this).GetDestinationOnly () << "\n"
- << "Unknown sequence number " << (*this).GetUnknownSeqno () << "\n";
-}
-
-std::ostream &
-operator<< (std::ostream & os, RreqHeader const & h)
-{
- h.Print (os);
- return os;
-}
-
-void
-RreqHeader::SetGratiousRrep (bool f)
-{
- if (f)
- m_flags |= (1 << 5);
- else
- m_flags &= ~(1 << 5);
-}
-
-bool
-RreqHeader::GetGratiousRrep () const
-{
- return (m_flags & (1 << 5));
-}
-
-void
-RreqHeader::SetDestinationOnly (bool f)
-{
- if (f)
- m_flags |= (1 << 4);
- else
- m_flags &= ~(1 << 4);
-}
-
-bool
-RreqHeader::GetDestinationOnly () const
-{
- return (m_flags & (1 << 4));
-}
-
-void
-RreqHeader::SetUnknownSeqno (bool f)
-{
- if (f)
- m_flags |= (1 << 3);
- else
- m_flags &= ~(1 << 3);
-}
-
-bool
-RreqHeader::GetUnknownSeqno () const
-{
- return (m_flags & (1 << 3));
-}
-
-bool
-RreqHeader::operator== (RreqHeader const & o) const
-{
- return (m_flags == o.m_flags && m_reserved == o.m_reserved &&
- m_hopCount == o.m_hopCount && m_requestID == o.m_requestID &&
- m_dst == o.m_dst && m_dstSeqNo == o.m_dstSeqNo &&
- m_origin == o.m_origin && m_originSeqNo == o.m_originSeqNo);
-}
-
-//-----------------------------------------------------------------------------
-// RREP
-//-----------------------------------------------------------------------------
-
-RrepHeader::RrepHeader (uint8_t prefixSize, uint8_t hopCount, Ipv4Address dst,
- uint32_t dstSeqNo, Ipv4Address origin, Time lifeTime) :
- m_flags (0), m_prefixSize (prefixSize), m_hopCount (hopCount),
- m_dst (dst), m_dstSeqNo (dstSeqNo), m_origin (origin)
-{
- m_lifeTime = uint32_t (lifeTime.GetMilliSeconds ());
-}
-
-TypeId
-RrepHeader::GetInstanceTypeId () const
-{
- return TypeId ();
-}
-
-uint32_t
-RrepHeader::GetSerializedSize () const
-{
- return 19;
-}
-
-void
-RrepHeader::Serialize (Buffer::Iterator i) const
-{
- i.WriteU8 (m_flags);
- i.WriteU8 (m_prefixSize);
- i.WriteU8 (m_hopCount);
- WriteTo (i, m_dst);
- i.WriteHtonU32 (m_dstSeqNo);
- WriteTo (i, m_origin);
- i.WriteHtonU32 (m_lifeTime);
-}
-
-uint32_t
-RrepHeader::Deserialize (Buffer::Iterator start)
-{
- Buffer::Iterator i = start;
-
- m_flags = i.ReadU8 ();
- m_prefixSize = i.ReadU8 ();
- m_hopCount = i.ReadU8 ();
- ReadFrom (i, m_dst);
- m_dstSeqNo = i.ReadNtohU32 ();
- ReadFrom (i, m_origin);
- m_lifeTime = i.ReadNtohU32 ();
-
- uint32_t dist = i.GetDistanceFrom (start);
- NS_ASSERT (dist == GetSerializedSize ());
- return dist;
-}
-
-void
-RrepHeader::Print (std::ostream &os) const
-{
- os << "destination: ipv4 " << m_dst << "sequence number " << m_dstSeqNo;
- if (m_prefixSize != 0)
- os << "prefix size " << m_prefixSize << "\n";
- else
- os << "\n";
- os << "source ipv4 " << m_origin << "\n" << "life time " << m_lifeTime
- << "\n" << "acknowledgment required flag " << (*this).GetAckRequired ()
- << "\n";
-}
-
-void
-RrepHeader::SetLifeTime (Time t)
-{
- m_lifeTime = t.GetMilliSeconds ();
-}
-
-Time
-RrepHeader::GetLifeTime () const
-{
- Time t (MilliSeconds (m_lifeTime));
- return t;
-}
-
-void
-RrepHeader::SetAckRequired (bool f)
-{
- if (f)
- m_flags |= (1 << 6);
- else
- m_flags &= ~(1 << 6);
-}
-
-bool
-RrepHeader::GetAckRequired () const
-{
- return (m_flags & (1 << 6));
-}
-
-void
-RrepHeader::SetPrefixSize (uint8_t sz)
-{
- m_prefixSize = sz;
-}
-
-uint8_t
-RrepHeader::GetPrefixSize () const
-{
- return m_prefixSize;
-}
-
-bool
-RrepHeader::operator== (RrepHeader const & o) const
-{
- return (m_flags == o.m_flags && m_prefixSize == o.m_prefixSize &&
- m_hopCount == o.m_hopCount && m_dst == o.m_dst && m_dstSeqNo == o.m_dstSeqNo &&
- m_origin == o.m_origin && m_lifeTime == o.m_lifeTime);
-}
-
-void
-RrepHeader::SetHello (Ipv4Address origin, uint32_t srcSeqNo, Time lifetime)
-{
- m_flags = 0;
- m_prefixSize = 0;
- m_hopCount = 0;
- m_dst = origin;
- m_dstSeqNo = srcSeqNo;
- m_origin = origin;
- m_lifeTime = lifetime.GetMilliSeconds ();
-}
-
-std::ostream &
-operator<< (std::ostream & os, RrepHeader const & h)
-{
- h.Print (os);
- return os;
-}
-
-//-----------------------------------------------------------------------------
-// RREP-ACK
-//-----------------------------------------------------------------------------
-
-RrepAckHeader::RrepAckHeader () :
- m_reserved (0)
-{
-}
-
-TypeId
-RrepAckHeader::GetInstanceTypeId () const
-{
- return TypeId ();
-}
-
-uint32_t
-RrepAckHeader::GetSerializedSize () const
-{
- return 1;
-}
-
-void
-RrepAckHeader::Serialize (Buffer::Iterator i ) const
-{
- i.WriteU8 (m_reserved);
-}
-
-uint32_t
-RrepAckHeader::Deserialize (Buffer::Iterator start )
-{
- Buffer::Iterator i = start;
- m_reserved = i.ReadU8 ();
- uint32_t dist = i.GetDistanceFrom (start);
- NS_ASSERT (dist == GetSerializedSize ());
- return dist;
-}
-
-void
-RrepAckHeader::Print (std::ostream &os ) const
-{
-}
-
-bool
-RrepAckHeader::operator== (RrepAckHeader const & o ) const
-{
- return m_reserved == o.m_reserved;
-}
-
-std::ostream &
-operator<< (std::ostream & os, RrepAckHeader const & h )
-{
- h.Print (os);
- return os;
-}
-
-//-----------------------------------------------------------------------------
-// RERR
-//-----------------------------------------------------------------------------
-RerrHeader::RerrHeader () :
- m_flag (0), m_reserved (0)
-{
-}
-
-TypeId
-RerrHeader::GetInstanceTypeId () const
-{
- return TypeId ();
-}
-
-uint32_t
-RerrHeader::GetSerializedSize () const
-{
- return (3 + 8 * GetDestCount ());
-}
-
-void
-RerrHeader::Serialize (Buffer::Iterator i ) const
-{
- i.WriteU8 (m_flag);
- i.WriteU8 (m_reserved);
- i.WriteU8 (GetDestCount ());
- std::map<Ipv4Address, uint32_t>::const_iterator j;
- for (j = m_unreachableDstSeqNo.begin (); j != m_unreachableDstSeqNo.end (); ++j)
- {
- WriteTo (i, (*j).first);
- i.WriteHtonU32 ((*j).second);
- }
-}
-
-uint32_t
-RerrHeader::Deserialize (Buffer::Iterator start )
-{
- Buffer::Iterator i = start;
- m_flag = i.ReadU8 ();
- m_reserved = i.ReadU8 ();
- uint8_t dest = i.ReadU8 ();
- m_unreachableDstSeqNo.clear ();
- Ipv4Address address;
- uint32_t seqNo;
- for (uint8_t k = 0; k < dest; ++k)
- {
- ReadFrom (i, address);
- seqNo = i.ReadNtohU32 ();
- m_unreachableDstSeqNo.insert (std::make_pair (address, seqNo));
- }
-
- uint32_t dist = i.GetDistanceFrom (start);
- NS_ASSERT (dist == GetSerializedSize ());
- return dist;
-}
-
-void
-RerrHeader::Print (std::ostream &os ) const
-{
- os << "Unreachable destination (ipv4 address, seq. number):\n";
- std::map<Ipv4Address, uint32_t>::const_iterator j;
- for (j = m_unreachableDstSeqNo.begin (); j != m_unreachableDstSeqNo.end (); ++j)
- {
- os << (*j).first << ", " << (*j).second << "\n";
- }
- os << "No delete flag " << (*this).GetNoDelete () << "\n";
-}
-
-void
-RerrHeader::SetNoDelete (bool f )
-{
- if (f)
- m_flag |= (1 << 0);
- else
- m_flag &= ~(1 << 0);
-}
-
-bool
-RerrHeader::GetNoDelete () const
-{
- return (m_flag & (1 << 0));
-}
-
-bool
-RerrHeader::AddUnDestination (Ipv4Address dst, uint32_t seqNo )
-{
- if (m_unreachableDstSeqNo.find (dst) != m_unreachableDstSeqNo.end ())
- return true;
-
- NS_ASSERT (GetDestCount() < 255); // can't support more than 255 destinations in single RERR
- m_unreachableDstSeqNo.insert (std::make_pair (dst, seqNo));
- return true;
-}
-
-bool
-RerrHeader::RemoveUnDestination (std::pair<Ipv4Address, uint32_t> & un )
-{
- if (m_unreachableDstSeqNo.empty ())
- return false;
- std::map<Ipv4Address, uint32_t>::iterator i = m_unreachableDstSeqNo.begin ();
- un = *i;
- m_unreachableDstSeqNo.erase (i);
- return true;
-}
-
-void
-RerrHeader::Clear ()
-{
- m_unreachableDstSeqNo.clear ();
- m_flag = 0;
- m_reserved = 0;
-}
-
-bool
-RerrHeader::operator== (RerrHeader const & o ) const
-{
- if (m_flag != o.m_flag || m_reserved != o.m_reserved || GetDestCount () != o.GetDestCount ())
- return false;
-
- std::map<Ipv4Address, uint32_t>::const_iterator j = m_unreachableDstSeqNo.begin ();
- std::map<Ipv4Address, uint32_t>::const_iterator k = o.m_unreachableDstSeqNo.begin ();
- for (uint8_t i = 0; i < GetDestCount (); ++i)
- {
- if ((j->first != k->first) || (j->second != k->second))
- return false;
-
- j++;
- k++;
- }
- return true;
-}
-
-std::ostream &
-operator<< (std::ostream & os, RerrHeader const & h )
-{
- h.Print (os);
- return os;
-}
-}
-}
--- a/src/routing/manet/aodv/aodv-packet.h Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,330 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-#ifndef AODVPACKET_H
-#define AODVPACKET_H
-
-#include <iostream>
-#include "ns3/header.h"
-#include "ns3/enum.h"
-#include "ns3/ipv4-address.h"
-#include <map>
-#include "ns3/nstime.h"
-
-namespace ns3 {
-namespace aodv {
-
-enum MessageType
-{
- AODVTYPE_RREQ = 1, //!< AODVTYPE_RREQ
- AODVTYPE_RREP = 2, //!< AODVTYPE_RREP
- AODVTYPE_RERR = 3, //!< AODVTYPE_RERR
- AODVTYPE_RREP_ACK = 4 //!< AODVTYPE_RREP_ACK
-};
-
-/**
-* \ingroup aodv
-* \brief AODV types
-*/
-class TypeHeader : public Header
-{
-public:
- /// c-tor
- TypeHeader (MessageType t);
-
- ///\name Header serialization/deserialization
- //\{
- TypeId GetInstanceTypeId () const;
- uint32_t GetSerializedSize () const;
- void Serialize (Buffer::Iterator start) const;
- uint32_t Deserialize (Buffer::Iterator start);
- void Print (std::ostream &os) const;
- //\}
-
- /// Return type
- MessageType Get () const { return m_type; }
- /// Check that type if valid
- bool IsValid () const { return m_valid; }
- bool operator== (TypeHeader const & o) const;
-private:
- MessageType m_type;
- bool m_valid;
-};
-
-std::ostream & operator<< (std::ostream & os, TypeHeader const & h);
-
-/**
-* \ingroup aodv
-* \brief Route Request (RREQ) Message Format
- \verbatim
- 0 1 2 3
- 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Type |J|R|G|D|U| Reserved | Hop Count |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | RREQ ID |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Destination IP Address |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Destination Sequence Number |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Originator IP Address |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Originator Sequence Number |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- \endverbatim
-*/
-class RreqHeader : public Header
-{
-public:
- /// c-tor
- RreqHeader (uint8_t flags = 0, uint8_t reserved = 0, uint8_t hopCount = 0,
- uint32_t requestID = 0, Ipv4Address dst = Ipv4Address (),
- uint32_t dstSeqNo = 0, Ipv4Address origin = Ipv4Address (),
- uint32_t originSeqNo = 0);
-
- ///\name Header serialization/deserialization
- //\{
- TypeId GetInstanceTypeId () const;
- uint32_t GetSerializedSize () const;
- void Serialize (Buffer::Iterator start) const;
- uint32_t Deserialize (Buffer::Iterator start);
- void Print (std::ostream &os) const;
- //\}
-
- ///\name Fields
- //\{
- void SetHopCount (uint8_t count) { m_hopCount = count; }
- uint8_t GetHopCount () const { return m_hopCount; }
- void SetId (uint32_t id) { m_requestID = id; }
- uint8_t GetId () const { return m_requestID; }
- void SetDst (Ipv4Address a) { m_dst = a; }
- Ipv4Address GetDst () const { return m_dst; }
- void SetDstSeqno (uint32_t s) { m_dstSeqNo = s; }
- uint32_t GetDstSeqno () const { return m_dstSeqNo; }
- void SetOrigin (Ipv4Address a) { m_origin = a; }
- Ipv4Address GetOrigin () const { return m_origin; }
- void SetOriginSeqno (uint32_t s) { m_originSeqNo = s; }
- uint32_t GetOriginSeqno () const { return m_originSeqNo; }
- //\}
-
- ///\name Flags
- //\{
- void SetGratiousRrep (bool f);
- bool GetGratiousRrep () const;
- void SetDestinationOnly (bool f);
- bool GetDestinationOnly () const;
- void SetUnknownSeqno (bool f);
- bool GetUnknownSeqno () const;
- //\}
-
- bool operator== (RreqHeader const & o) const;
-private:
- uint8_t m_flags; ///< |J|R|G|D|U| bit flags, see RFC
- uint8_t m_reserved; ///< Not used
- uint8_t m_hopCount; ///< Hop Count
- uint32_t m_requestID; ///< RREQ ID
- Ipv4Address m_dst; ///< Destination IP Address
- uint32_t m_dstSeqNo; ///< Destination Sequence Number
- Ipv4Address m_origin; ///< Originator IP Address
- uint32_t m_originSeqNo; ///< Source Sequence Number
-};
-
-std::ostream & operator<< (std::ostream & os, RreqHeader const &);
-
-/**
-* \ingroup aodv
-* \brief Route Reply (RREP) Message Format
- \verbatim
- 0 1 2 3
- 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Type |R|A| Reserved |Prefix Sz| Hop Count |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Destination IP address |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Destination Sequence Number |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Originator IP address |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Lifetime |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- \endverbatim
-*/
-class RrepHeader : public Header
-{
-public:
- /// c-tor
- RrepHeader (uint8_t prefixSize = 0, uint8_t hopCount = 0, Ipv4Address dst =
- Ipv4Address (), uint32_t dstSeqNo = 0, Ipv4Address origin =
- Ipv4Address (), Time lifetime = MilliSeconds (0));
- ///\name Header serialization/deserialization
- //\{
- TypeId GetInstanceTypeId () const;
- uint32_t GetSerializedSize () const;
- void Serialize (Buffer::Iterator start) const;
- uint32_t Deserialize (Buffer::Iterator start);
- void Print (std::ostream &os) const;
- //\}
-
- ///\name Fields
- //\{
- void SetHopCount (uint8_t count) { m_hopCount = count; }
- uint8_t GetHopCount () const { return m_hopCount; }
- void SetDst (Ipv4Address a) { m_dst = a; }
- Ipv4Address GetDst () const { return m_dst; }
- void SetDstSeqno (uint32_t s) { m_dstSeqNo = s; }
- uint32_t GetDstSeqno () const { return m_dstSeqNo; }
- void SetOrigin (Ipv4Address a) { m_origin = a; }
- Ipv4Address GetOrigin () const { return m_origin; }
- void SetLifeTime (Time t);
- Time GetLifeTime () const;
- //\}
-
- ///\name Flags
- //\{
- void SetAckRequired (bool f);
- bool GetAckRequired () const;
- void SetPrefixSize (uint8_t sz);
- uint8_t GetPrefixSize () const;
- //\}
-
- /// Configure RREP to be a Hello message
- void SetHello (Ipv4Address src, uint32_t srcSeqNo, Time lifetime);
-
- bool operator== (RrepHeader const & o) const;
-private:
- uint8_t m_flags; ///< A - acknowledgment required flag
- uint8_t m_prefixSize; ///< Prefix Size
- uint8_t m_hopCount; ///< Hop Count
- Ipv4Address m_dst; ///< Destination IP Address
- uint32_t m_dstSeqNo; ///< Destination Sequence Number
- Ipv4Address m_origin; ///< Source IP Address
- uint32_t m_lifeTime; ///< Lifetime (in milliseconds)
-};
-
-std::ostream & operator<< (std::ostream & os, RrepHeader const &);
-
-/**
-* \ingroup aodv
-* \brief Route Reply Acknowledgment (RREP-ACK) Message Format
- \verbatim
- 0 1
- 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Type | Reserved |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- \endverbatim
-*/
-class RrepAckHeader : public Header
-{
-public:
- /// c-tor
- RrepAckHeader ();
-
- ///\name Header serialization/deserialization
- //\{
- TypeId GetInstanceTypeId () const;
- uint32_t GetSerializedSize () const;
- void Serialize (Buffer::Iterator start) const;
- uint32_t Deserialize (Buffer::Iterator start);
- void Print (std::ostream &os) const;
- //\}
-
- bool operator== (RrepAckHeader const & o) const;
-private:
- uint8_t m_reserved;
-};
-std::ostream & operator<< (std::ostream & os, RrepAckHeader const &);
-
-
-/**
-* \ingroup aodv
-* \brief Route Error (RERR) Message Format
- \verbatim
- 0 1 2 3
- 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Type |N| Reserved | DestCount |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Unreachable Destination IP Address (1) |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- | Unreachable Destination Sequence Number (1) |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-|
- | Additional Unreachable Destination IP Addresses (if needed) |
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- |Additional Unreachable Destination Sequence Numbers (if needed)|
- +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- \endverbatim
-*/
-class RerrHeader : public Header
-{
-public:
- /// c-tor
- RerrHeader ();
-
- ///\name Header serialization/deserialization
- //\{
- TypeId GetInstanceTypeId () const;
- uint32_t GetSerializedSize () const;
- void Serialize (Buffer::Iterator i) const;
- uint32_t Deserialize (Buffer::Iterator start);
- void Print (std::ostream &os) const;
- //\}
-
- ///\name No delete flag
- //\{
- void SetNoDelete (bool f);
- bool GetNoDelete () const;
- //\}
-
- /**
- * Add unreachable node address and its sequence number in RERR header
- *\return false if we already added maximum possible number of unreachable destinations
- */
- bool AddUnDestination (Ipv4Address dst, uint32_t seqNo);
- /** Delete pair (address + sequence number) from REER header, if the number of unreachable destinations > 0
- * \return true on success
- */
- bool RemoveUnDestination (std::pair<Ipv4Address, uint32_t> & un);
- /// Clear header
- void Clear();
- /// Return number of unreachable destinations in RERR message
- uint8_t GetDestCount () const { return (uint8_t)m_unreachableDstSeqNo.size(); }
- bool operator== (RerrHeader const & o) const;
-private:
- uint8_t m_flag; ///< No delete flag
- uint8_t m_reserved; ///< Not used
-
- /// List of Unreachable destination: IP addresses and sequence numbers
- std::map<Ipv4Address, uint32_t> m_unreachableDstSeqNo;
-};
-
-std::ostream & operator<< (std::ostream & os, RerrHeader const &);
-}
-}
-#endif /* AODVPACKET_H */
--- a/src/routing/manet/aodv/aodv-routing-protocol.cc Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1498 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-#include "aodv-routing-protocol.h"
-#include "ns3/log.h"
-#include "ns3/random-variable.h"
-#include "ns3/inet-socket-address.h"
-#include "ns3/trace-source-accessor.h"
-#include "ns3/udp-socket-factory.h"
-#include "ns3/wifi-net-device.h"
-#include "ns3/adhoc-wifi-mac.h"
-#include <algorithm>
-
-NS_LOG_COMPONENT_DEFINE ("AodvRoutingProtocol");
-
-namespace ns3
-{
-namespace aodv
-{
-NS_OBJECT_ENSURE_REGISTERED (RoutingProtocol);
-
-/// UDP Port for AODV control traffic
-const uint32_t RoutingProtocol::AODV_PORT = 654;
-
-RoutingProtocol::RoutingProtocol () :
- RreqRetries (2),
- RreqRateLimit (10),
- ActiveRouteTimeout (Seconds (3)),
- NetDiameter (35),
- NodeTraversalTime (MilliSeconds (40)),
- NetTraversalTime (Scalar (2 * NetDiameter) * NodeTraversalTime),
- PathDiscoveryTime ( Scalar (2) * NetTraversalTime),
- MyRouteTimeout (Scalar (2) * std::max (PathDiscoveryTime, ActiveRouteTimeout)),
- HelloInterval(Seconds (1)),
- AllowedHelloLoss (2),
- DeletePeriod (Scalar(5) * std::max(ActiveRouteTimeout, HelloInterval)),
- NextHopWait (NodeTraversalTime + MilliSeconds (10)),
- TimeoutBuffer (2),
- BlackListTimeout(Scalar (RreqRetries) * NetTraversalTime),
- MaxQueueLen (64),
- MaxQueueTime (Seconds(30)),
- DestinationOnly (false),
- GratuitousReply (true),
- EnableHello (true),
- m_routingTable (DeletePeriod),
- m_queue (MaxQueueLen, MaxQueueTime),
- m_requestId (0),
- m_seqNo (0),
- m_rreqIdCache (PathDiscoveryTime),
- m_dpd (PathDiscoveryTime),
- m_nb(HelloInterval),
- m_rreqCount (0),
- m_htimer (Timer::CANCEL_ON_DESTROY),
- m_rreqRateLimitTimer (Timer::CANCEL_ON_DESTROY)
-{
- if (EnableHello)
- {
- m_nb.SetCallback (MakeCallback (&RoutingProtocol::SendRerrWhenBreaksLinkToNextHop, this));
- }
-}
-
-TypeId
-RoutingProtocol::GetTypeId (void)
-{
- static TypeId tid = TypeId ("ns3::aodv::RoutingProtocol")
- .SetParent<Ipv4RoutingProtocol> ()
- .AddConstructor<RoutingProtocol> ()
- .AddAttribute ("HelloInterval", "HELLO messages emission interval.",
- TimeValue (Seconds (1)),
- MakeTimeAccessor (&RoutingProtocol::HelloInterval),
- MakeTimeChecker ())
- .AddAttribute ("RreqRetries", "Maximum number of retransmissions of RREQ to discover a route",
- UintegerValue (2),
- MakeUintegerAccessor (&RoutingProtocol::RreqRetries),
- MakeUintegerChecker<uint32_t> ())
- .AddAttribute ("RreqRateLimit", "Maximum number of RREQ per second.",
- UintegerValue (10),
- MakeUintegerAccessor (&RoutingProtocol::RreqRateLimit),
- MakeUintegerChecker<uint32_t> ())
- .AddAttribute ("NodeTraversalTime", "Conservative estimate of the average one hop traversal time for packets and should include "
- "queuing delays, interrupt processing times and transfer times.",
- TimeValue (MilliSeconds (40)),
- MakeTimeAccessor (&RoutingProtocol::NodeTraversalTime),
- MakeTimeChecker ())
- .AddAttribute ("NextHopWait", "Period of our waiting for the neighbour's RREP_ACK = 10 ms + NodeTraversalTime",
- TimeValue (MilliSeconds (50)),
- MakeTimeAccessor (&RoutingProtocol::NextHopWait),
- MakeTimeChecker ())
- .AddAttribute ("ActiveRouteTimeout", "Period of time during which the route is considered to be valid",
- TimeValue (Seconds (3)),
- MakeTimeAccessor (&RoutingProtocol::ActiveRouteTimeout),
- MakeTimeChecker ())
- .AddAttribute ("MyRouteTimeout", "Value of lifetime field in RREP generating by this node = 2 * max(ActiveRouteTimeout, PathDiscoveryTime)",
- TimeValue (Seconds (11.2)),
- MakeTimeAccessor (&RoutingProtocol::MyRouteTimeout),
- MakeTimeChecker ())
- .AddAttribute ("BlackListTimeout", "Time for which the node is put into the blacklist = RreqRetries * NetTraversalTime",
- TimeValue (Seconds (5.6)),
- MakeTimeAccessor (&RoutingProtocol::BlackListTimeout),
- MakeTimeChecker ())
- .AddAttribute ("DeletePeriod", "DeletePeriod is intended to provide an upper bound on the time for which an upstream node A "
- "can have a neighbor B as an active next hop for destination D, while B has invalidated the route to D."
- " = 5 * max (HelloInterval, ActiveRouteTimeout)",
- TimeValue (Seconds (15)),
- MakeTimeAccessor (&RoutingProtocol::DeletePeriod),
- MakeTimeChecker ())
- .AddAttribute ("TimeoutBuffer", "Its purpose is to provide a buffer for the timeout so that if the RREP is delayed"
- " due to congestion, a timeout is less likely to occur while the RREP is still en route back to the source.",
- UintegerValue (2),
- MakeUintegerAccessor (&RoutingProtocol::TimeoutBuffer),
- MakeUintegerChecker<uint16_t> ())
- .AddAttribute ("NetDiameter", "Net diameter measures the maximum possible number of hops between two nodes in the network",
- UintegerValue (35),
- MakeUintegerAccessor (&RoutingProtocol::NetDiameter),
- MakeUintegerChecker<uint32_t> ())
- .AddAttribute ("NetTraversalTime", "Estimate of the average net traversal time = 2 * NodeTraversalTime * NetDiameter",
- TimeValue (Seconds (2.8)),
- MakeTimeAccessor (&RoutingProtocol::NetTraversalTime),
- MakeTimeChecker ())
- .AddAttribute ("PathDiscoveryTime", "Estimate of maximum time needed to find route in network = 2 * NetTraversalTime",
- TimeValue (Seconds (5.6)),
- MakeTimeAccessor (&RoutingProtocol::PathDiscoveryTime),
- MakeTimeChecker ())
- .AddAttribute ("MaxQueueLen", "Maximum number of packets that we allow a routing protocol to buffer.",
- UintegerValue (64),
- MakeUintegerAccessor (&RoutingProtocol::MaxQueueLen),
- MakeUintegerChecker<uint32_t> ())
- .AddAttribute ("MaxQueueTime", "Maximum time packets can be queued (in seconds)",
- TimeValue (Seconds (30)),
- MakeTimeAccessor (&RoutingProtocol::MaxQueueTime),
- MakeTimeChecker ())
- .AddAttribute ("AllowedHelloLoss", "Number of hello messages which may be loss for valid link.",
- UintegerValue (2),
- MakeUintegerAccessor (&RoutingProtocol::AllowedHelloLoss),
- MakeUintegerChecker<uint16_t> ())
- .AddAttribute ("GratuitousReply", "Indicates whether a gratuitous RREP should be unicast to the node originated route discovery.",
- BooleanValue (true),
- MakeBooleanAccessor (&RoutingProtocol::SetGratuitousReplyFlag,
- &RoutingProtocol::GetGratuitousReplyFlag),
- MakeBooleanChecker ())
- .AddAttribute ("DestinationOnly", "Indicates only the destination may respond to this RREQ.",
- BooleanValue (false),
- MakeBooleanAccessor (&RoutingProtocol::SetDesinationOnlyFlag,
- &RoutingProtocol::GetDesinationOnlyFlag),
- MakeBooleanChecker ())
- .AddAttribute ("EnableHello", "Indicates whether a hello messages enable.",
- BooleanValue (true),
- MakeBooleanAccessor (&RoutingProtocol::SetHelloEnable,
- &RoutingProtocol::GetHelloEnable),
- MakeBooleanChecker ())
- .AddAttribute ("EnableBroadcast", "Indicates whether a broadcast data packets forwarding enable.",
- BooleanValue (true),
- MakeBooleanAccessor (&RoutingProtocol::SetBroadcastEnable,
- &RoutingProtocol::GetBroadcastEnable),
- MakeBooleanChecker ())
- ;
- return tid;
-}
-
-RoutingProtocol::~RoutingProtocol ()
-{
-}
-
-void
-RoutingProtocol::DoDispose ()
-{
- m_ipv4 = 0;
- for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::iterator iter =
- m_socketAddresses.begin (); iter != m_socketAddresses.end (); iter++)
- {
- iter->first->Close ();
- }
- m_socketAddresses.clear ();
- Ipv4RoutingProtocol::DoDispose ();
-}
-
-void
-RoutingProtocol::Start ()
-{
- m_scb = MakeCallback (&RoutingProtocol::Send, this);
- m_ecb = MakeCallback (&RoutingProtocol::Drop, this);
-
- if (EnableHello)
- {
- m_nb.ScheduleTimer ();
- }
- m_rreqRateLimitTimer.SetFunction (&RoutingProtocol::RreqRateLimitTimerExpire,
- this);
- m_rreqRateLimitTimer.Schedule (Seconds (1));
-}
-
-Ptr<Ipv4Route>
-RoutingProtocol::RouteOutput (Ptr<Packet> p, const Ipv4Header &header,
- uint32_t oif, Socket::SocketErrno &sockerr)
-{
- NS_LOG_FUNCTION (this << header.GetDestination ());
- if (m_socketAddresses.empty ())
- {
- sockerr = Socket::ERROR_NOROUTETOHOST;
- NS_LOG_LOGIC ("No aodv interfaces");
- Ptr<Ipv4Route> route;
- return route;
- }
- sockerr = Socket::ERROR_NOTERROR;
- Ptr<Ipv4Route> route;
- Ipv4Address dst = header.GetDestination ();
- RoutingTableEntry rt;
- if (m_routingTable.LookupRoute (dst, rt))
- {
- if (rt.GetFlag () == VALID)
- {
- route = rt.GetRoute ();
- NS_ASSERT (route != 0);
- NS_LOG_LOGIC("exist route to " << route->GetDestination() << " from interface " << route->GetSource());
- UpdateRouteLifeTime (dst, ActiveRouteTimeout);
- UpdateRouteLifeTime (route->GetGateway (), ActiveRouteTimeout);
- }
- else
- {
- bool result = true;
- // May be null pointer (e.g. tcp-socket give null pointer)
- if (p != Ptr<Packet> ())
- {
- QueueEntry newEntry (p, header, m_scb, m_ecb);
- result = m_queue.Enqueue (newEntry);
- if (result)
- NS_LOG_LOGIC ("Add packet " << p->GetUid() << " to queue");
-
- }
- if ((rt.GetFlag () == INVALID) && result)
- {
- SendRequest (dst);
- }
- }
- }
- else
- {
- bool result = true;
- if (p != Ptr<Packet> ())
- {
- QueueEntry newEntry (p, header, m_scb, m_ecb);
- // Some protocols may ask route several times for a single packet.
- result = m_queue.Enqueue (newEntry);
- if (result)
- NS_LOG_LOGIC ("Add packet " << p->GetUid() << " to queue. Protocol " << (uint16_t) header.GetProtocol ());
- }
- if (result)
- SendRequest (dst);
- }
- return route;
-}
-
-bool
-RoutingProtocol::RouteInput (Ptr<const Packet> p, const Ipv4Header &header,
- Ptr<const NetDevice> idev, UnicastForwardCallback ucb,
- MulticastForwardCallback mcb, LocalDeliverCallback lcb, ErrorCallback ecb)
-{
- NS_LOG_FUNCTION (this << p->GetUid() << header.GetDestination() << idev->GetAddress());
- if (m_socketAddresses.empty ())
- {
- NS_LOG_LOGIC ("No aodv interfaces");
- return false;
- }
- NS_ASSERT (m_ipv4 != 0);
- // Check if input device supports IP
- NS_ASSERT (m_ipv4->GetInterfaceForDevice (idev) >= 0);
- int32_t iif = m_ipv4->GetInterfaceForDevice (idev);
-
- Ipv4Address dst = header.GetDestination ();
- Ipv4Address origin = header.GetSource ();
-
- if (IsMyOwnAddress (origin))
- return true;
-
- // Local delivery to AODV interfaces
- for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
- m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
- {
- Ipv4InterfaceAddress iface = j->second;
- if (m_ipv4->GetInterfaceForAddress (iface.GetLocal ()) == iif)
- if (dst == iface.GetBroadcast ())
- {
- if (!EnableBroadcast)
- {
- return true;
- }
- if (m_dpd.IsDuplicate (p, header))
- {
- NS_LOG_DEBUG ("Duplicated packet " << p->GetUid () << " from " << origin << ". Drop.");
- return true;
- }
- UpdateRouteLifeTime (origin, ActiveRouteTimeout);
- NS_LOG_LOGIC ("Broadcast local delivery to " << iface.GetLocal ());
- Ptr<Packet> packet = p->Copy ();
- lcb (p, header, iif);
- if (header.GetTtl () > 1)
- {
- NS_LOG_LOGIC ("Forward broadcast. TTL " << (uint16_t) header.GetTtl ());
- RoutingTableEntry toBroadcast;
- if (m_routingTable.LookupRoute (dst, toBroadcast))
- {
- Ptr<Ipv4Route> route = toBroadcast.GetRoute ();
- ucb (route, packet, header);
- }
- else
- {
- NS_LOG_DEBUG ("No route to forward broadcast. Drop packet " << p->GetUid ());
- }
- }
- else
- {
- NS_LOG_DEBUG ("TTL exceeded. Drop packet " << p->GetUid ());
- }
- return true;
- }
- }
- for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
- m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
- {
- Ipv4InterfaceAddress iface = j->second;
- if (dst == iface.GetLocal ())
- {
- UpdateRouteLifeTime (origin, ActiveRouteTimeout);
- RoutingTableEntry toOrigin;
- if (m_routingTable.LookupRoute (origin, toOrigin))
- {
- UpdateRouteLifeTime (toOrigin.GetNextHop (), ActiveRouteTimeout);
- m_nb.Update (toOrigin.GetNextHop (), ActiveRouteTimeout);
- }
- NS_LOG_LOGIC ("Unicast local delivery to " << iface.GetLocal ());
- lcb (p, header, iif);
- return true;
- }
- }
-
- // Forwarding
- return Forwarding (p, header, ucb, ecb);
-}
-
-bool
-RoutingProtocol::Forwarding (Ptr<const Packet> p, const Ipv4Header & header,
- UnicastForwardCallback ucb, ErrorCallback ecb)
-{
- Ipv4Address dst = header.GetDestination ();
- Ipv4Address origin = header.GetSource ();
- m_routingTable.Purge ();
- RoutingTableEntry toDst;
- if (m_routingTable.LookupRoute (dst, toDst))
- {
- if (toDst.GetFlag () == VALID)
- {
- Ptr<Ipv4Route> route = toDst.GetRoute ();
- NS_LOG_LOGIC (route->GetSource()<<" forwarding to " << dst << " from " << origin << " packet " << p->GetUid ());
-
- /*
- * Each time a route is used to forward a data packet, its Active Route
- * Lifetime field of the source, destination and the next hop on the
- * path to the destination is updated to be no less than the current
- * time plus ActiveRouteTimeout.
- */
- UpdateRouteLifeTime (origin, ActiveRouteTimeout);
- UpdateRouteLifeTime (dst, ActiveRouteTimeout);
- UpdateRouteLifeTime (route->GetGateway (), ActiveRouteTimeout);
- /*
- * Since the route between each originator and destination pair is expected to be symmetric, the
- * Active Route Lifetime for the previous hop, along the reverse path back to the IP source, is also updated
- * to be no less than the current time plus ActiveRouteTimeout
- */
- RoutingTableEntry toOrigin;
- m_routingTable.LookupRoute (origin, toOrigin);
- UpdateRouteLifeTime (toOrigin.GetNextHop (), ActiveRouteTimeout);
-
- m_nb.Update (route->GetGateway (), ActiveRouteTimeout);
- m_nb.Update (toOrigin.GetNextHop (), ActiveRouteTimeout);
-
- ucb (route, p, header);
- return true;
- }
- else
- {
- if (toDst.GetValidSeqNo ())
- {
- SendRerrWhenNoRouteToForward (dst, toDst.GetSeqNo (), origin);
- NS_LOG_DEBUG ("Drop packet " << p->GetUid () << " because no route to forward it.");
- return false;
- }
- }
- }
- NS_LOG_LOGIC ("route not found to "<< dst << ". Send RERR message.");
- NS_LOG_DEBUG ("Drop packet " << p->GetUid () << " because no route to forward it.");
- SendRerrWhenNoRouteToForward (dst, 0, origin);
- return false;
-}
-
-void
-RoutingProtocol::SetIpv4 (Ptr<Ipv4> ipv4)
-{
- NS_ASSERT (ipv4 != 0);
- NS_ASSERT (m_ipv4 == 0);
-
- if (EnableHello)
- {
- m_htimer.SetFunction (&RoutingProtocol::HelloTimerExpire, this);
- m_htimer.Schedule (MilliSeconds (UniformVariable ().GetInteger (0, 100)));
- }
-
- m_ipv4 = ipv4;
- Simulator::ScheduleNow (&RoutingProtocol::Start, this);
-}
-
-void
-RoutingProtocol::NotifyInterfaceUp (uint32_t i)
-{
- NS_LOG_FUNCTION (this << m_ipv4->GetAddress (i, 0).GetLocal ());
- Ptr<Ipv4L3Protocol> l3 = m_ipv4->GetObject<Ipv4L3Protocol> ();
- if (l3->GetNAddresses (i) > 1)
- {
- NS_LOG_WARN ("AODV does not work with more then one address per each interface.");
- }
- Ipv4InterfaceAddress iface = l3->GetAddress (i, 0);
- if (iface.GetLocal () == Ipv4Address ("127.0.0.1"))
- return;
-
- // Create a socket to listen only on this interface
- Ptr<Socket> socket = Socket::CreateSocket (GetObject<Node> (),
- UdpSocketFactory::GetTypeId ());
- NS_ASSERT (socket != 0);
- socket->SetRecvCallback (MakeCallback (&RoutingProtocol::RecvAodv, this));
- socket->Bind (InetSocketAddress (iface.GetLocal (), AODV_PORT));
- socket->Connect (InetSocketAddress (iface.GetBroadcast (), AODV_PORT));
- socket->SetAttribute ("IpTtl", UintegerValue (1));
- m_socketAddresses.insert (std::make_pair (socket, iface));
-
- // Add local broadcast record to the routing table
- Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (iface.GetLocal ()));
- RoutingTableEntry rt (/*device=*/dev, /*dst=*/iface.GetBroadcast (), /*know seqno=*/true, /*seqno=*/0, /*iface=*/iface,
- /*hops=*/1, /*next hop=*/iface.GetBroadcast (), /*lifetime=*/Simulator::GetMaximumSimulationTime ());
- m_routingTable.AddRoute (rt);
-
- // Allow neighbor manager use this interface for layer 2 feedback if possible
- Ptr<WifiNetDevice> wifi = dev->GetObject<WifiNetDevice> ();
- if (wifi == 0)
- return;
- Ptr<WifiMac> mac = wifi->GetMac ();
- if (mac == 0)
- return;
-
- mac->TraceConnectWithoutContext ("TxErrHeader", m_nb.GetTxErrorCallback ());
- m_nb.AddArpCache (l3->GetInterface (i)->GetArpCache ());
-}
-
-void
-RoutingProtocol::NotifyInterfaceDown (uint32_t i)
-{
- NS_LOG_FUNCTION (this << m_ipv4->GetAddress (i, 0).GetLocal ());
-
- // Disable layer 2 link state monitoring (if possible)
- Ptr<Ipv4L3Protocol> l3 = m_ipv4->GetObject<Ipv4L3Protocol> ();
- Ptr<NetDevice> dev = l3->GetNetDevice (i);
- Ptr<WifiNetDevice> wifi = dev->GetObject<WifiNetDevice> ();
- if (wifi != 0)
- {
- Ptr<WifiMac> mac = wifi->GetMac ()->GetObject<AdhocWifiMac> ();
- if (mac != 0)
- {
- mac->TraceDisconnectWithoutContext ("TxErrHeader",
- m_nb.GetTxErrorCallback ());
- m_nb.DelArpCache (l3->GetInterface (i)->GetArpCache ());
- }
- }
-
- // Close socket
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (m_ipv4->GetAddress (i, 0));
- NS_ASSERT (socket);
- socket->Close ();
- m_socketAddresses.erase (socket);
- if (m_socketAddresses.empty ())
- {
- NS_LOG_LOGIC ("No aodv interfaces");
- m_htimer.Cancel ();
- m_nb.Clear ();
- m_routingTable.Clear ();
- return;
- }
- m_routingTable.DeleteAllRoutesFromInterface (m_ipv4->GetAddress (i, 0));
-}
-
-void
-RoutingProtocol::NotifyAddAddress (uint32_t i, Ipv4InterfaceAddress address)
-{
- NS_LOG_FUNCTION (this << " interface " << i << " address " << address);
- Ptr<Ipv4L3Protocol> l3 = m_ipv4->GetObject<Ipv4L3Protocol> ();
- if (!l3->IsUp (i))
- return;
- if (l3->GetNAddresses (i) == 1)
- {
- Ipv4InterfaceAddress iface = l3->GetAddress (i, 0);
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (iface);
- if (!socket)
- {
- if (iface.GetLocal () == Ipv4Address ("127.0.0.1"))
- return;
- // Create a socket to listen only on this interface
- Ptr<Socket> socket = Socket::CreateSocket (GetObject<Node> (),
- UdpSocketFactory::GetTypeId ());
- NS_ASSERT (socket != 0);
- socket->SetRecvCallback (MakeCallback (&RoutingProtocol::RecvAodv,this));
- socket->Bind (InetSocketAddress (iface.GetLocal (), AODV_PORT));
- socket->Connect (InetSocketAddress (iface.GetBroadcast (), AODV_PORT));
- m_socketAddresses.insert (std::make_pair (socket, iface));
-
- // Add local broadcast record to the routing table
- Ptr<NetDevice> dev = m_ipv4->GetNetDevice (
- m_ipv4->GetInterfaceForAddress (iface.GetLocal ()));
- RoutingTableEntry rt (/*device=*/dev, /*dst=*/iface.GetBroadcast (), /*know seqno=*/true,
- /*seqno=*/0, /*iface=*/iface, /*hops=*/1,
- /*next hop=*/iface.GetBroadcast (), /*lifetime=*/Simulator::GetMaximumSimulationTime ());
- m_routingTable.AddRoute (rt);
- }
- }
- else
- {
- NS_LOG_LOGIC ("AODV does not work with more then one address per each interface. Ignore added address");
- }
-}
-
-void
-RoutingProtocol::NotifyRemoveAddress (uint32_t i, Ipv4InterfaceAddress address)
-{
- NS_LOG_FUNCTION (this);
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (address);
- if (socket)
- {
- m_routingTable.DeleteAllRoutesFromInterface (address);
- m_socketAddresses.erase (socket);
- Ptr<Ipv4L3Protocol> l3 = m_ipv4->GetObject<Ipv4L3Protocol> ();
- if (l3->GetNAddresses (i))
- {
- Ipv4InterfaceAddress iface = l3->GetAddress (i, 0);
- // Create a socket to listen only on this interface
- Ptr<Socket> socket = Socket::CreateSocket (GetObject<Node> (),
- UdpSocketFactory::GetTypeId ());
- NS_ASSERT (socket != 0);
- socket->SetRecvCallback (MakeCallback (&RoutingProtocol::RecvAodv, this));
- socket->Bind (InetSocketAddress (iface.GetLocal (), AODV_PORT));
- socket->Connect (InetSocketAddress (iface.GetBroadcast (), AODV_PORT));
- m_socketAddresses.insert (std::make_pair (socket, iface));
-
- // Add local broadcast record to the routing table
- Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (iface.GetLocal ()));
- RoutingTableEntry rt (/*device=*/dev, /*dst=*/iface.GetBroadcast (), /*know seqno=*/true, /*seqno=*/0, /*iface=*/iface,
- /*hops=*/1, /*next hop=*/iface.GetBroadcast (), /*lifetime=*/Simulator::GetMaximumSimulationTime ());
- m_routingTable.AddRoute (rt);
- }
- if (m_socketAddresses.empty ())
- {
- NS_LOG_LOGIC ("No aodv interfaces");
- m_htimer.Cancel ();
- m_nb.Clear ();
- m_routingTable.Clear ();
- return;
- }
- }
- else
- {
- NS_LOG_LOGIC ("Remove address not participating in AODV operation");
- }
-}
-
-bool
-RoutingProtocol::IsMyOwnAddress (Ipv4Address src)
-{
- for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
- m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
- {
- Ipv4InterfaceAddress iface = j->second;
- if (src == iface.GetLocal ())
- {
- return true;
- }
- }
- return false;
-}
-
-void
-RoutingProtocol::SendRequest (Ipv4Address dst)
-{
- NS_LOG_FUNCTION ( this << dst);
- // A node SHOULD NOT originate more than RREQ_RATELIMIT RREQ messages per second.
- if (m_rreqCount == RreqRateLimit)
- {
- Simulator::Schedule (m_rreqRateLimitTimer.GetDelayLeft () + MicroSeconds (100),
- &RoutingProtocol::SendRequest, this, dst);
- return;
- }
- else
- m_rreqCount++;
- // Create RREQ header
- RreqHeader rreqHeader;
- rreqHeader.SetDst (dst);
-
- RoutingTableEntry rt;
- if (m_routingTable.LookupRoute (dst, rt))
- {
- rreqHeader.SetHopCount (rt.GetHop ());
- if (rt.GetValidSeqNo ())
- rreqHeader.SetDstSeqno (rt.GetSeqNo ());
- else
- rreqHeader.SetUnknownSeqno (true);
- rt.SetFlag (IN_SEARCH);
- m_routingTable.AddRoute (rt);
- }
- else
- {
- rreqHeader.SetUnknownSeqno (true);
- RoutingTableEntry newEntry;
- newEntry.SetFlag (IN_SEARCH);
- m_routingTable.AddRoute (newEntry);
- }
-
- if (GratuitousReply)
- rreqHeader.SetGratiousRrep (true);
- if (DestinationOnly)
- rreqHeader.SetDestinationOnly (true);
-
- m_seqNo++;
- rreqHeader.SetOriginSeqno (m_seqNo);
- m_requestId++;
- rreqHeader.SetId (m_requestId);
- rreqHeader.SetHopCount (0);
-
- // Send RREQ as subnet directed broadcast from each interface used by aodv
- for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
- m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
- {
- Ptr<Socket> socket = j->first;
- Ipv4InterfaceAddress iface = j->second;
-
- rreqHeader.SetOrigin (iface.GetLocal ());
- m_rreqIdCache.IsDuplicate (iface.GetLocal (), m_requestId);
-
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (rreqHeader);
- TypeHeader tHeader (AODVTYPE_RREQ);
- packet->AddHeader (tHeader);
- socket->Send (packet);
- }
- ScheduleRreqRetry (dst);
- if (EnableHello)
- {
- m_htimer.Cancel ();
- m_htimer.Schedule (HelloInterval - Scalar (0.01) * MilliSeconds (UniformVariable ().GetInteger (0, 10)));
- }
-}
-
-void
-RoutingProtocol::ScheduleRreqRetry (Ipv4Address dst)
-{
- if (m_addressReqTimer.find (dst) == m_addressReqTimer.end ())
- {
- Timer timer (Timer::CANCEL_ON_DESTROY);
- m_addressReqTimer[dst] = timer;
- }
- m_addressReqTimer[dst].SetFunction (&RoutingProtocol::RouteRequestTimerExpire, this);
- m_addressReqTimer[dst].Remove ();
- m_addressReqTimer[dst].SetArguments (dst);
- RoutingTableEntry rt;
- m_routingTable.LookupRoute (dst, rt);
- rt.IncrementRreqCnt ();
- m_routingTable.Update (rt);
- m_addressReqTimer[dst].Schedule (Scalar (rt.GetRreqCnt ()) * NetTraversalTime);
-}
-
-void
-RoutingProtocol::RecvAodv (Ptr<Socket> socket)
-{
- NS_LOG_FUNCTION (this);
- Address sourceAddress;
- Ptr<Packet> packet = socket->RecvFrom (sourceAddress);
- InetSocketAddress inetSourceAddr = InetSocketAddress::ConvertFrom (sourceAddress);
- Ipv4Address sender = inetSourceAddr.GetIpv4 ();
- Ipv4Address receiver = m_socketAddresses[socket].GetLocal ();
- NS_LOG_DEBUG ("AODV node " << this << " received a AODV packet from " << sender << " to " << receiver);
-
- UpdateRouteToNeighbor (sender, receiver);
- TypeHeader tHeader (AODVTYPE_RREQ);
- packet->RemoveHeader (tHeader);
- if (!tHeader.IsValid ())
- {
- NS_LOG_DEBUG ("AODV message " << packet->GetUid() << " with unknown type received: " << tHeader.Get() << ". Drop");
- return; // drop
- }
- switch (tHeader.Get ())
- {
- case AODVTYPE_RREQ:
- {
- RecvRequest (packet, receiver, sender);
- break;
- }
- case AODVTYPE_RREP:
- {
- RecvReply (packet, receiver, sender);
- break;
- }
- case AODVTYPE_RERR:
- {
- RecvError (packet, sender);
- break;
- }
- case AODVTYPE_RREP_ACK:
- {
- RecvReplyAck (sender);
- break;
- }
- }
-}
-
-bool
-RoutingProtocol::UpdateRouteLifeTime (Ipv4Address addr, Time lifetime)
-{
- RoutingTableEntry rt;
- if (m_routingTable.LookupRoute (addr, rt))
- {
- rt.SetFlag (VALID);
- rt.SetRreqCnt (0);
- rt.SetLifeTime (std::max (lifetime, rt.GetLifeTime ()));
- m_routingTable.Update (rt);
- return true;
- }
- return false;
-}
-
-void
-RoutingProtocol::UpdateRouteToNeighbor (Ipv4Address sender, Ipv4Address receiver)
-{
- NS_LOG_FUNCTION (this << "sender " << sender << " receiver " << receiver);
- RoutingTableEntry toNeighbor;
- if (!m_routingTable.LookupRoute (sender, toNeighbor))
- {
- Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver));
- RoutingTableEntry newEntry (/*device=*/dev, /*dst=*/sender, /*know seqno=*/false, /*seqno=*/0,
- /*iface=*/m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0),
- /*hops=*/1, /*next hop=*/sender, /*lifetime=*/ActiveRouteTimeout);
- m_routingTable.AddRoute (newEntry);
- }
- else
- {
- Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver));
- RoutingTableEntry newEntry (/*device=*/dev, /*dst=*/sender, /*know seqno=*/false, /*seqno=*/0,
- /*iface=*/m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0),
- /*hops=*/1, /*next hop=*/sender, /*lifetime=*/std::max (ActiveRouteTimeout, toNeighbor.GetLifeTime ()));
- m_routingTable.Update (newEntry);
- }
-}
-
-void
-RoutingProtocol::RecvRequest (Ptr<Packet> p, Ipv4Address receiver, Ipv4Address src)
-{
- NS_LOG_FUNCTION (this);
- RreqHeader rreqHeader;
- p->RemoveHeader (rreqHeader);
-
- // A node ignores all RREQs received from any node in its blacklist
- RoutingTableEntry toPrev;
- if (m_routingTable.LookupRoute (src, toPrev))
- {
- if (toPrev.IsUnidirectional ())
- return;
- }
-
- uint32_t id = rreqHeader.GetId ();
- Ipv4Address origin = rreqHeader.GetOrigin ();
-
- /*
- * Node checks to determine whether it has received a RREQ with the same Originator IP Address and RREQ ID.
- * If such a RREQ has been received, the node silently discards the newly received RREQ.
- */
- if (m_rreqIdCache.IsDuplicate (origin, id))
- {
- return;
- }
-
- // Increment RREQ hop count
- uint8_t hop = rreqHeader.GetHopCount () + 1;
- rreqHeader.SetHopCount (hop);
-
- /*
- * When the reverse route is created or updated, the following actions on the route are also carried out:
- * 1. the Originator Sequence Number from the RREQ is compared to the corresponding destination sequence number
- * in the route table entry and copied if greater than the existing value there
- * 2. the valid sequence number field is set to true;
- * 3. the next hop in the routing table becomes the node from which the RREQ was received
- * 4. the hop count is copied from the Hop Count in the RREQ message;
- * 5. the Lifetime is set to be the maximum of (ExistingLifetime, MinimalLifetime), where
- * MinimalLifetime = current time + 2*NetTraversalTime - 2*HopCount*NodeTraversalTime
- */
- RoutingTableEntry toOrigin;
- if (!m_routingTable.LookupRoute (origin, toOrigin))
- {
- Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver));
- RoutingTableEntry newEntry (/*device=*/dev, /*dst=*/origin, /*validSeno=*/true, /*seqNo=*/rreqHeader.GetOriginSeqno (),
- /*iface=*/m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0), /*hops=*/hop,
- /*nextHop*/src, /*timeLife=*/Scalar (2) * NetTraversalTime - Scalar (2 * hop) * NodeTraversalTime);
- m_routingTable.AddRoute (newEntry);
- }
- else
- {
- if (toOrigin.GetValidSeqNo ())
- {
- if (int32_t (rreqHeader.GetOriginSeqno ()) - int32_t (toOrigin.GetSeqNo ()) > 0)
- toOrigin.SetSeqNo (rreqHeader.GetOriginSeqno ());
- }
- else
- toOrigin.SetSeqNo (rreqHeader.GetOriginSeqno ());
- toOrigin.SetValidSeqNo (true);
- toOrigin.SetNextHop (src);
- toOrigin.SetOutputDevice (m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver)));
- toOrigin.SetInterface (m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0));
- toOrigin.SetHop (hop);
- toOrigin.SetLifeTime (std::max (Scalar (2) * NetTraversalTime - Scalar (2 * hop) * NodeTraversalTime, toOrigin.GetLifeTime ()));
- m_routingTable.Update (toOrigin);
- }
- NS_LOG_LOGIC (receiver << " receive RREQ to destination " << rreqHeader.GetDst ());
-
- // A node generates a RREP if either:
- // (i) it is itself the destination,
- if (IsMyOwnAddress (rreqHeader.GetDst ()))
- {
- m_routingTable.LookupRoute (origin, toOrigin);
- SendReply (rreqHeader, toOrigin);
- return;
- }
- /*
- * (ii) or it has an active route to the destination, the destination sequence number in the node's existing route table entry for the destination
- * is valid and greater than or equal to the Destination Sequence Number of the RREQ, and the "destination only" flag is NOT set.
- */
- RoutingTableEntry toDst;
- Ipv4Address dst = rreqHeader.GetDst ();
- if (m_routingTable.LookupRoute (dst, toDst))
- {
- /*
- * The Destination Sequence number for the requested destination is set to the maximum of the corresponding value
- * received in the RREQ message, and the destination sequence value currently maintained by the node for the requested destination.
- * However, the forwarding node MUST NOT modify its maintained value for the destination sequence number, even if the value
- * received in the incoming RREQ is larger than the value currently maintained by the forwarding node.
- */
- if (rreqHeader.GetUnknownSeqno () || ( (int32_t (toDst.GetSeqNo ()) - int32_t (rreqHeader.GetDstSeqno ()) > 0)
- && toDst.GetValidSeqNo () ))
- {
- if (!rreqHeader.GetDestinationOnly () && toDst.GetFlag() == VALID)
- {
- m_routingTable.LookupRoute (origin, toOrigin);
- SendReplyByIntermediateNode (toDst, toOrigin, rreqHeader.GetGratiousRrep ());
- return;
- }
- rreqHeader.SetDstSeqno (toDst.GetSeqNo ());
- rreqHeader.SetUnknownSeqno (false);
- }
- }
-
- for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
- m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
- {
- Ptr<Socket> socket = j->first;
- Ipv4InterfaceAddress iface = j->second;
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (rreqHeader);
- TypeHeader tHeader (AODVTYPE_RREQ);
- packet->AddHeader (tHeader);
- socket->Send (packet);
- }
-
- if (EnableHello)
- {
- m_htimer.Cancel ();
- m_htimer.Schedule (HelloInterval - Scalar(0.1)*MilliSeconds(UniformVariable().GetInteger (0, 10)));
- }
-}
-
-void
-RoutingProtocol::SendReply (RreqHeader const & rreqHeader, RoutingTableEntry const & toOrigin)
-{
- NS_LOG_FUNCTION (this << toOrigin.GetDestination ());
- /*
- * Destination node MUST increment its own sequence number by one if the sequence number in the RREQ packet is equal to that
- * incremented value. Otherwise, the destination does not change its sequence number before generating the RREP message.
- */
- if (!rreqHeader.GetUnknownSeqno () && (rreqHeader.GetDstSeqno () == m_seqNo + 1))
- m_seqNo++;
- RrepHeader rrepHeader ( /*prefixSize=*/0, /*hops=*/0, /*dst=*/rreqHeader.GetDst (),
- /*dstSeqNo=*/m_seqNo, /*origin=*/toOrigin.GetDestination (), /*lifeTime=*/MyRouteTimeout);
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (rrepHeader);
- TypeHeader tHeader (AODVTYPE_RREP);
- packet->AddHeader (tHeader);
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (toOrigin.GetInterface ());
- NS_ASSERT (socket);
- socket->SendTo (packet, 0, InetSocketAddress (toOrigin.GetNextHop (), AODV_PORT));
-}
-
-void
-RoutingProtocol::SendReplyByIntermediateNode (RoutingTableEntry & toDst, RoutingTableEntry & toOrigin, bool gratRep)
-{
- NS_LOG_FUNCTION(this);
- RrepHeader rrepHeader (/*prefix size=*/0, /*hops=*/toDst.GetHop (), /*dst=*/toDst.GetDestination (), /*dst seqno=*/toDst.GetSeqNo (),
- /*origin=*/toOrigin.GetDestination (), /*lifetime=*/toDst.GetLifeTime ());
- /* If the node we received a RREQ for is a neighbor we are
- * probably facing a unidirectional link... Better request a RREP-ack
- */
- if (toDst.GetHop () == 1)
- {
- rrepHeader.SetAckRequired (true);
- RoutingTableEntry toNextHop;
- m_routingTable.LookupRoute (toOrigin.GetNextHop (), toNextHop);
- toNextHop.m_ackTimer.SetFunction (&RoutingProtocol::AckTimerExpire, this);
- toNextHop.m_ackTimer.SetArguments (toNextHop.GetDestination (), BlackListTimeout);
- toNextHop.m_ackTimer.SetDelay (NextHopWait);
- }
- toDst.InsertPrecursor (toOrigin.GetNextHop ());
- toOrigin.InsertPrecursor (toDst.GetNextHop ());
- m_routingTable.Update (toDst);
- m_routingTable.Update (toOrigin);
-
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (rrepHeader);
- TypeHeader tHeader (AODVTYPE_RREP);
- packet->AddHeader (tHeader);
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (toOrigin.GetInterface ());
- NS_ASSERT (socket);
- socket->SendTo (packet, 0, InetSocketAddress (toOrigin.GetNextHop (), AODV_PORT));
-
- // Generating gratuitous RREPs
- if (gratRep)
- {
- RrepHeader gratRepHeader (/*prefix size=*/0, /*hops=*/toOrigin.GetHop (), /*dst=*/toOrigin.GetDestination (),
- /*dst seqno=*/toOrigin.GetSeqNo (), /*origin=*/toDst.GetDestination (),
- /*lifetime=*/toOrigin.GetLifeTime ());
- Ptr<Packet> packetToDst = Create<Packet> ();
- packetToDst->AddHeader (gratRepHeader);
- TypeHeader type (AODVTYPE_RREP);
- packetToDst->AddHeader (type);
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (toDst.GetInterface ());
- NS_ASSERT (socket);
- NS_LOG_LOGIC ("Send gratuitous RREP " << packet->GetUid());
- socket->SendTo (packetToDst, 0, InetSocketAddress (toDst.GetNextHop (), AODV_PORT));
- }
-}
-
-void
-RoutingProtocol::SendReplyAck (Ipv4Address neighbor)
-{
- NS_LOG_FUNCTION (this << " to " << neighbor);
- RrepAckHeader h;
- TypeHeader typeHeader (AODVTYPE_RREP_ACK);
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (h);
- packet->AddHeader (typeHeader);
- RoutingTableEntry toNeighbor;
- m_routingTable.LookupRoute (neighbor, toNeighbor);
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (toNeighbor.GetInterface ());
- NS_ASSERT (socket);
- socket->SendTo (packet, 0, InetSocketAddress (neighbor, AODV_PORT));
-}
-
-void
-RoutingProtocol::RecvReply (Ptr<Packet> p, Ipv4Address receiver, Ipv4Address sender)
-{
- NS_LOG_FUNCTION(this << " src " << sender);
- RrepHeader rrepHeader;
- p->RemoveHeader (rrepHeader);
- Ipv4Address dst = rrepHeader.GetDst ();
- NS_LOG_LOGIC("RREP destination " << dst << " RREP origin " << rrepHeader.GetOrigin());
-
- uint8_t hop = rrepHeader.GetHopCount () + 1;
- rrepHeader.SetHopCount (hop);
-
- // If RREP is Hello message
- if (dst == rrepHeader.GetOrigin ())
- {
- ProcessHello (rrepHeader, receiver);
- return;
- }
-
- /*
- * If the route table entry to the destination is created or updated, then the following actions occur:
- * - the route is marked as active,
- * - the destination sequence number is marked as valid,
- * - the next hop in the route entry is assigned to be the node from which the RREP is received,
- * which is indicated by the source IP address field in the IP header,
- * - the hop count is set to the value of the hop count from RREP message + 1
- * - the expiry time is set to the current time plus the value of the Lifetime in the RREP message,
- * - and the destination sequence number is the Destination Sequence Number in the RREP message.
- */
- Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver));
- RoutingTableEntry newEntry (/*device=*/dev, /*dst=*/dst, /*validSeqNo=*/true, /*seqno=*/rrepHeader.GetDstSeqno (),
- /*iface=*/m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0),/*hop=*/hop,
- /*nextHop=*/sender, /*lifeTime=*/rrepHeader.GetLifeTime ());
- RoutingTableEntry toDst;
- if (m_routingTable.LookupRoute (dst, toDst))
- {
- /*
- * The existing entry is updated only in the following circumstances:
- * (i) the sequence number in the routing table is marked as invalid in route table entry.
- */
- if (!toDst.GetValidSeqNo ())
- {
- m_routingTable.Update (newEntry);
- }
- // (ii)the Destination Sequence Number in the RREP is greater than the node's copy of the destination sequence number and the known value is valid,
- else if ((int32_t (rrepHeader.GetDstSeqno ()) - int32_t (toDst.GetSeqNo ())) > 0)
- {
- m_routingTable.Update (newEntry);
- }
- else
- {
- // (iii) the sequence numbers are the same, but the route is marked as inactive.
- if ((rrepHeader.GetDstSeqno () == toDst.GetSeqNo ()) && (toDst.GetFlag () != VALID))
- {
- m_routingTable.Update (newEntry);
- }
- // (iv) the sequence numbers are the same, and the New Hop Count is smaller than the hop count in route table entry.
- else if ((rrepHeader.GetDstSeqno () == toDst.GetSeqNo ()) && (hop < toDst.GetHop ()))
- {
- m_routingTable.Update (newEntry);
- }
- }
- }
- else
- {
- // The forward route for this destination is created if it does not already exist.
- NS_LOG_LOGIC ("add new route");
- m_routingTable.AddRoute (newEntry);
- }
- // Acknowledge receipt of the RREP by sending a RREP-ACK message back
- if (rrepHeader.GetAckRequired ())
- {
- SendReplyAck (sender);
- rrepHeader.SetAckRequired (false);
- }
- NS_LOG_LOGIC ("receiver " << receiver << " origin " << rrepHeader.GetOrigin ());
- if (IsMyOwnAddress (rrepHeader.GetOrigin ()))
- {
- if (toDst.GetFlag () == IN_SEARCH)
- {
- m_routingTable.Update (newEntry);
- m_addressReqTimer[dst].Remove ();
- m_addressReqTimer.erase (dst);
- }
- SendPacketFromQueue (rrepHeader.GetDst (), newEntry.GetRoute ());
- return;
- }
-
- RoutingTableEntry toOrigin;
- if (!m_routingTable.LookupRoute (rrepHeader.GetOrigin (), toOrigin))
- {
- return; // Impossible! drop.
- }
- toOrigin.SetLifeTime (std::max (ActiveRouteTimeout, toOrigin.GetLifeTime ()));
- m_routingTable.Update (toOrigin);
-
- // Update information about precursors
- m_routingTable.LookupRoute (rrepHeader.GetDst (), toDst);
- toDst.InsertPrecursor (toOrigin.GetNextHop ());
- m_routingTable.Update (toDst);
-
- RoutingTableEntry toNextHopToDst;
- m_routingTable.LookupRoute (toDst.GetNextHop (), toNextHopToDst);
- toNextHopToDst.InsertPrecursor (toOrigin.GetNextHop ());
- m_routingTable.Update (toNextHopToDst);
-
- toOrigin.InsertPrecursor (toDst.GetNextHop ());
- m_routingTable.Update (toOrigin);
-
- RoutingTableEntry toNextHopToOrigin;
- m_routingTable.LookupRoute (toOrigin.GetNextHop (), toNextHopToOrigin);
- toNextHopToOrigin.InsertPrecursor (toDst.GetNextHop ());
- m_routingTable.Update (toNextHopToOrigin);
-
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (rrepHeader);
- TypeHeader tHeader (AODVTYPE_RREP);
- packet->AddHeader (tHeader);
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (toOrigin.GetInterface ());
- NS_ASSERT (socket);
- socket->SendTo (packet, 0, InetSocketAddress (toOrigin.GetNextHop (), AODV_PORT));
-}
-
-void
-RoutingProtocol::RecvReplyAck (Ipv4Address neighbor)
-{
- NS_LOG_FUNCTION (this);
- RoutingTableEntry rt;
- if(m_routingTable.LookupRoute(neighbor, rt))
- {
- rt.m_ackTimer.Cancel ();
- rt.SetFlag (VALID);
- m_routingTable.Update(rt);
- }
-}
-
-void
-RoutingProtocol::ProcessHello (RrepHeader const & rrepHeader, Ipv4Address receiver )
-{
- NS_LOG_FUNCTION(this << "from " << rrepHeader.GetDst ());
- /*
- * Whenever a node receives a Hello message from a neighbor, the node
- * SHOULD make sure that it has an active route to the neighbor, and
- * create one if necessary.
- */
- RoutingTableEntry toNeighbor;
- if (!m_routingTable.LookupRoute (rrepHeader.GetDst (), toNeighbor))
- {
- Ptr<NetDevice> dev = m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver));
- RoutingTableEntry newEntry (/*device=*/dev, /*dst=*/rrepHeader.GetDst (), /*validSeqNo=*/true, /*seqno=*/rrepHeader.GetDstSeqno (),
- /*iface=*/m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0),
- /*hop=*/1, /*nextHop=*/rrepHeader.GetDst (), /*lifeTime=*/rrepHeader.GetLifeTime ());
- m_routingTable.AddRoute (newEntry);
- }
- else
- {
- toNeighbor.SetLifeTime (std::max (Scalar (AllowedHelloLoss) * HelloInterval, toNeighbor.GetLifeTime ()));
- toNeighbor.SetSeqNo (rrepHeader.GetDstSeqno ());
- toNeighbor.SetValidSeqNo (true);
- toNeighbor.SetFlag (VALID);
- toNeighbor.SetOutputDevice (m_ipv4->GetNetDevice (m_ipv4->GetInterfaceForAddress (receiver)));
- toNeighbor.SetInterface (m_ipv4->GetAddress (m_ipv4->GetInterfaceForAddress (receiver), 0));
- m_routingTable.Update (toNeighbor);
- }
- if (EnableHello)
- {
- m_nb.Update (rrepHeader.GetDst (), Scalar (AllowedHelloLoss) * HelloInterval);
- }
-}
-
-void
-RoutingProtocol::RecvError (Ptr<Packet> p, Ipv4Address src )
-{
- NS_LOG_FUNCTION (this << " from " << src);
- RerrHeader rerrHeader;
- p->RemoveHeader (rerrHeader);
- std::map<Ipv4Address, uint32_t> dstWithNextHopSrc;
- std::map<Ipv4Address, uint32_t> unreachable;
- m_routingTable.GetListOfDestinationWithNextHop (src, dstWithNextHopSrc);
- std::pair<Ipv4Address, uint32_t> un;
- while (rerrHeader.RemoveUnDestination (un))
- {
- if (m_nb.IsNeighbor (un.first))
- SendRerrWhenBreaksLinkToNextHop (un.first);
- else
- {
- for (std::map<Ipv4Address, uint32_t>::const_iterator i =
- dstWithNextHopSrc.begin (); i != dstWithNextHopSrc.end (); ++i)
- {
- if (i->first == un.first)
- {
- Ipv4Address dst = un.first;
- unreachable.insert (un);
- }
- }
- }
- }
-
- std::vector<Ipv4Address> precursors;
- for (std::map<Ipv4Address, uint32_t>::const_iterator i = unreachable.begin ();
- i != unreachable.end ();)
- {
- if (!rerrHeader.AddUnDestination (i->first, i->second))
- {
- TypeHeader typeHeader (AODVTYPE_RERR);
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (rerrHeader);
- packet->AddHeader (typeHeader);
- SendRerrMessage (packet, precursors);
- rerrHeader.Clear ();
- }
- else
- {
- RoutingTableEntry toDst;
- m_routingTable.LookupRoute (i->first, toDst);
- toDst.GetPrecursors (precursors);
- ++i;
- }
- }
- if (rerrHeader.GetDestCount () != 0)
- {
- TypeHeader typeHeader (AODVTYPE_RERR);
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (rerrHeader);
- packet->AddHeader (typeHeader);
- SendRerrMessage (packet, precursors);
- }
- m_routingTable.InvalidateRoutesWithDst (unreachable);
-}
-
-void
-RoutingProtocol::RouteRequestTimerExpire (Ipv4Address dst)
-{
- NS_LOG_LOGIC(this);
- RoutingTableEntry toDst;
- m_routingTable.LookupRoute (dst, toDst);
- if (toDst.GetFlag () == VALID)
- {
- SendPacketFromQueue (dst, toDst.GetRoute ());
- NS_LOG_LOGIC ("route to " << dst << " found");
- return;
- }
- /*
- * If a route discovery has been attempted RreqRetries times at the maximum TTL without
- * receiving any RREP, all data packets destined for the corresponding destination SHOULD be
- * dropped from the buffer and a Destination Unreachable message SHOULD be delivered to the application.
- */
- if (toDst.GetRreqCnt () == RreqRetries)
- {
- NS_LOG_LOGIC("route discovery to " << dst << " has been attempted RreqRetries times");
- m_addressReqTimer.erase (dst);
- m_routingTable.DeleteRoute (dst);
- NS_LOG_DEBUG ("Route not found. Drop packet with dst " << dst);
- m_queue.DropPacketWithDst (dst);
- return;
- }
-
- if (toDst.GetFlag () == IN_SEARCH)
- {
- NS_LOG_LOGIC ("Send new RREQ to " << dst << " ttl " << NetDiameter);
- SendRequest (dst);
- }
- else
- {
- NS_LOG_DEBUG ("Route down. Stop search. Drop packet with destination " << dst);
- m_addressReqTimer.erase(dst);
- m_routingTable.DeleteRoute(dst);
- m_queue.DropPacketWithDst(dst);
- }
-}
-
-void
-RoutingProtocol::HelloTimerExpire ()
-{
- NS_LOG_FUNCTION(this);
- SendHello ();
- m_htimer.Cancel ();
- Time t = Scalar(0.01)*MilliSeconds(UniformVariable().GetInteger (0, 100));
- m_htimer.Schedule (HelloInterval - t);
-}
-
-void
-RoutingProtocol::RreqRateLimitTimerExpire ()
-{
- m_rreqCount = 0;
- m_rreqRateLimitTimer.Schedule (Seconds (1));
-}
-
-void
-RoutingProtocol::AckTimerExpire (Ipv4Address neighbor, Time blacklistTimeout)
-{
- NS_LOG_FUNCTION(this);
- m_routingTable.MarkLinkAsUnidirectional (neighbor, blacklistTimeout);
-}
-
-void
-RoutingProtocol::SendHello ()
-{
- NS_LOG_FUNCTION(this);
- /* Broadcast a RREP with TTL = 1 with the RREP message fields set as follows:
- * Destination IP Address The node's IP address.
- * Destination Sequence Number The node's latest sequence number.
- * Hop Count 0
- * Lifetime AllowedHelloLoss * HelloInterval
- */
- for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j = m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
- {
- Ptr<Socket> socket = j->first;
- Ipv4InterfaceAddress iface = j->second;
- RrepHeader helloHeader (/*prefix size=*/0, /*hops=*/0, /*dst=*/iface.GetLocal (), /*dst seqno=*/m_seqNo,
- /*origin=*/iface.GetLocal (),/*lifetime=*/Scalar (AllowedHelloLoss) * HelloInterval);
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (helloHeader);
- TypeHeader tHeader (AODVTYPE_RREP);
- packet->AddHeader (tHeader);
- socket->Send (packet);
- }
-}
-
-void
-RoutingProtocol::SendPacketFromQueue (Ipv4Address dst, Ptr<Ipv4Route> route)
-{
- NS_LOG_FUNCTION(this);
- QueueEntry queueEntry;
- while (m_queue.Dequeue (dst, queueEntry))
- {
- UnicastForwardCallback ucb = queueEntry.GetUnicastForwardCallback ();
- ucb (route, queueEntry.GetPacket (), queueEntry.GetIpv4Header ());
- }
-}
-
-void
-RoutingProtocol::Send (Ptr<Ipv4Route> route, Ptr<const Packet> packet,
- const Ipv4Header & header)
-{
- NS_LOG_FUNCTION (this << packet->GetUid() << (uint16_t) header.GetProtocol());
- Ptr<Ipv4L3Protocol> l3 = m_ipv4->GetObject<Ipv4L3Protocol> ();
- NS_ASSERT(l3 != 0);
- Ptr<Packet> p = packet->Copy ();
- l3->Send (p, route->GetSource (), header.GetDestination (),
- header.GetProtocol (), route);
-}
-
-void
-RoutingProtocol::SendRerrWhenBreaksLinkToNextHop (Ipv4Address nextHop)
-{
- NS_LOG_FUNCTION (this << nextHop);
- RerrHeader rerrHeader;
- std::vector<Ipv4Address> precursors;
- std::map<Ipv4Address, uint32_t> unreachable;
-
- RoutingTableEntry toNextHop;
- if (!m_routingTable.LookupRoute (nextHop, toNextHop))
- return;
- toNextHop.GetPrecursors (precursors);
- rerrHeader.AddUnDestination (nextHop, toNextHop.GetSeqNo ());
- m_routingTable.GetListOfDestinationWithNextHop (nextHop, unreachable);
- for (std::map<Ipv4Address, uint32_t>::const_iterator i = unreachable.begin (); i
- != unreachable.end ();)
- {
- if (!rerrHeader.AddUnDestination (i->first, i->second))
- {
- NS_LOG_LOGIC ("Send RERR message with maximum size.");
- TypeHeader typeHeader (AODVTYPE_RERR);
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (rerrHeader);
- packet->AddHeader (typeHeader);
- SendRerrMessage (packet, precursors);
- rerrHeader.Clear ();
- }
- else
- {
- RoutingTableEntry toDst;
- m_routingTable.LookupRoute (i->first, toDst);
- toDst.GetPrecursors (precursors);
- ++i;
- }
- }
- if (rerrHeader.GetDestCount () != 0)
- {
- TypeHeader typeHeader (AODVTYPE_RERR);
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (rerrHeader);
- packet->AddHeader (typeHeader);
- SendRerrMessage (packet, precursors);
- }
- unreachable.insert (std::make_pair (nextHop, toNextHop.GetSeqNo ()));
- m_routingTable.InvalidateRoutesWithDst (unreachable);
-}
-
-void
-RoutingProtocol::SendRerrWhenNoRouteToForward (Ipv4Address dst,
- uint32_t dstSeqNo, Ipv4Address origin)
-{
- NS_LOG_FUNCTION (this);
- RerrHeader rerrHeader;
- rerrHeader.AddUnDestination (dst, dstSeqNo);
- RoutingTableEntry toOrigin;
- Ptr<Packet> packet = Create<Packet> ();
- packet->AddHeader (rerrHeader);
- packet->AddHeader (TypeHeader (AODVTYPE_RERR));
- if (m_routingTable.LookupRoute (origin, toOrigin))
- {
- if (toOrigin.GetFlag () == VALID)
- {
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (
- toOrigin.GetInterface ());
- NS_ASSERT (socket);
- NS_LOG_LOGIC ("Unicast RERR to the source of the data transmission");
- socket->SendTo (packet, 0, InetSocketAddress (toOrigin.GetNextHop (), AODV_PORT));
- }
-
- }
- else
- {
- for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator i =
- m_socketAddresses.begin (); i != m_socketAddresses.end (); ++i)
- {
- Ptr<Socket> socket = i->first;
- Ipv4InterfaceAddress iface = i->second;
- NS_ASSERT (socket);
- NS_LOG_LOGIC ("Broadcast RERR message from interface " << iface.GetLocal());
- socket->Send (packet);
- }
- }
-}
-
-void
-RoutingProtocol::SendRerrMessage (Ptr<Packet> packet, std::vector<Ipv4Address> precursors)
-{
- NS_LOG_FUNCTION(this);
-
- if (precursors.empty ())
- {
- NS_LOG_LOGIC ("No precursors");
- return;
- }
- // If there is only one precursor, RERR SHOULD be unicast toward that precursor
- if (precursors.size () == 1)
- {
- RoutingTableEntry toPrecursor;
- if (!m_routingTable.LookupRoute (precursors.front (), toPrecursor))
- return;
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (toPrecursor.GetInterface ());
- NS_ASSERT (socket);
- if (toPrecursor.GetFlag () == VALID)
- {
- NS_LOG_LOGIC ("one precursor => unicast RERR to " << toPrecursor.GetDestination() << " from " << toPrecursor.GetInterface ().GetLocal ());
- socket->SendTo (packet, 0, InetSocketAddress (precursors.front (), AODV_PORT));
- }
- else
- NS_LOG_LOGIC ("One precursor, but no valid route to this precursor");
- return;
- }
-
- // Should only transmit RERR on those interfaces which have precursor nodes for the broken route
- std::vector<Ipv4InterfaceAddress> ifaces;
- RoutingTableEntry toPrecursor;
- for (std::vector<Ipv4Address>::const_iterator i = precursors.begin (); i
- != precursors.end (); ++i)
- {
- if (!m_routingTable.LookupRoute (*i, toPrecursor))
- break;
- bool result = true;
- for (std::vector<Ipv4InterfaceAddress>::const_iterator i =
- ifaces.begin (); i != ifaces.end (); ++i)
- {
- if (*i == toPrecursor.GetInterface ())
- {
- result = false;
- break;
- }
- }
- if (result)
- ifaces.push_back (toPrecursor.GetInterface ());
- }
-
- for (std::vector<Ipv4InterfaceAddress>::const_iterator i = ifaces.begin (); i != ifaces.end (); ++i)
- {
- Ptr<Socket> socket = FindSocketWithInterfaceAddress (*i);
- NS_ASSERT (socket);
- NS_LOG_LOGIC ("Broadcast RERR message from interface " << i->GetLocal());
- socket->Send (packet);
- }
-
-}
-
-Ptr<Socket>
-RoutingProtocol::FindSocketWithInterfaceAddress (Ipv4InterfaceAddress addr ) const
-{
- for (std::map<Ptr<Socket> , Ipv4InterfaceAddress>::const_iterator j =
- m_socketAddresses.begin (); j != m_socketAddresses.end (); ++j)
- {
- Ptr<Socket> socket = j->first;
- Ipv4InterfaceAddress iface = j->second;
- if (iface == addr)
- return socket;
- }
- Ptr<Socket> socket;
- return socket;
-}
-
-void
-RoutingProtocol::Drop(Ptr<const Packet> packet, const Ipv4Header & header, Socket::SocketErrno err)
-{
- NS_LOG_DEBUG (this <<" drop own packet " << packet->GetUid() << " to " << header.GetDestination () << " from queue. Error " << err);
-}
-
-}
-}
--- a/src/routing/manet/aodv/aodv-routing-protocol.h Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,253 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-#ifndef AODVROUTINGPROTOCOL_H
-#define AODVROUTINGPROTOCOL_H
-
-#include "aodv-rtable.h"
-#include "aodv-rqueue.h"
-#include "aodv-packet.h"
-#include "aodv-neighbor.h"
-#include "aodv-dpd.h"
-#include "ns3/node.h"
-#include "ns3/ipv4-routing-protocol.h"
-#include "ns3/ipv4-interface.h"
-#include "ns3/ipv4-l3-protocol.h"
-#include <map>
-
-namespace ns3
-{
-namespace aodv
-{
-/**
- * \ingroup aodv
- *
- * \brief AODV routing protocol
- */
-class RoutingProtocol : public Ipv4RoutingProtocol
-{
-public:
- static TypeId GetTypeId (void);
- static const uint32_t AODV_PORT;
-
- /// c-tor
- RoutingProtocol ();
- virtual ~RoutingProtocol();
- virtual void DoDispose ();
-
- ///\name From Ipv4RoutingProtocol
- //\{
- Ptr<Ipv4Route> RouteOutput (Ptr<Packet> p, const Ipv4Header &header, uint32_t oif, Socket::SocketErrno &sockerr);
- bool RouteInput (Ptr<const Packet> p, const Ipv4Header &header, Ptr<const NetDevice> idev,
- UnicastForwardCallback ucb, MulticastForwardCallback mcb,
- LocalDeliverCallback lcb, ErrorCallback ecb);
- virtual void NotifyInterfaceUp (uint32_t interface);
- virtual void NotifyInterfaceDown (uint32_t interface);
- virtual void NotifyAddAddress (uint32_t interface, Ipv4InterfaceAddress address);
- virtual void NotifyRemoveAddress (uint32_t interface, Ipv4InterfaceAddress address);
- virtual void SetIpv4 (Ptr<Ipv4> ipv4);
- //\}
-
- ///\name Handle protocol parameters
- //\{
- bool GetDesinationOnlyFlag () const { return DestinationOnly; }
- void SetDesinationOnlyFlag (bool f) { DestinationOnly = f; }
- bool GetGratuitousReplyFlag () const { return GratuitousReply; }
- void SetGratuitousReplyFlag (bool f) { GratuitousReply = f; }
- void SetHelloEnable (bool f) { EnableHello = f; }
- bool GetHelloEnable () const { return EnableHello; }
- void SetBroadcastEnable (bool f) { EnableBroadcast = f; }
- bool GetBroadcastEnable () const { return EnableBroadcast; }
- //\}
-private:
- ///\name Protocol parameters.
- //\{
- uint32_t RreqRetries; ///< Maximum number of retransmissions of RREQ with TTL = NetDiameter to discover a route
- uint16_t RreqRateLimit; ///< Maximum number of RREQ per second.
- Time ActiveRouteTimeout; ///< Period of time during which the route is considered to be valid.
- uint32_t NetDiameter; ///< Net diameter measures the maximum possible number of hops between two nodes in the network
- /**
- * NodeTraversalTime is a conservative estimate of the average one hop traversal time for packets
- * and should include queuing delays, interrupt processing times and transfer times.
- */
- Time NodeTraversalTime;
- Time NetTraversalTime; ///< Estimate of the average net traversal time.
- Time PathDiscoveryTime; ///< Estimate of maximum time needed to find route in network.
- Time MyRouteTimeout; ///< Value of lifetime field in RREP generating by this node.
- /**
- * Every HelloInterval the node checks whether it has sent a broadcast within the last HelloInterval.
- * If it has not, it MAY broadcast a Hello message
- */
- Time HelloInterval;
- uint32_t AllowedHelloLoss; ///< Number of hello messages which may be loss for valid link
- /**
- * DeletePeriod is intended to provide an upper bound on the time for which an upstream node A
- * can have a neighbor B as an active next hop for destination D, while B has invalidated the route to D.
- */
- Time DeletePeriod;
- Time NextHopWait; ///< Period of our waiting for the neighbour's RREP_ACK
- /**
- * The TimeoutBuffer is configurable. Its purpose is to provide a buffer for the timeout so that if the RREP is delayed
- * due to congestion, a timeout is less likely to occur while the RREP is still en route back to the source.
- */
- uint16_t TimeoutBuffer;
- Time BlackListTimeout; ///< Time for which the node is put into the blacklist
- uint32_t MaxQueueLen; ///< The maximum number of packets that we allow a routing protocol to buffer.
- Time MaxQueueTime; ///< The maximum period of time that a routing protocol is allowed to buffer a packet for.
- bool DestinationOnly; ///< Indicates only the destination may respond to this RREQ.
- bool GratuitousReply; ///< Indicates whether a gratuitous RREP should be unicast to the node originated route discovery.
- bool EnableHello; ///< Indicates whether a hello messages enable
- bool EnableBroadcast; ///< Indicates whether a a broadcast data packets forwarding enable
- //\}
-
- /// IP protocol
- Ptr<Ipv4> m_ipv4;
- /// Raw socket per each IP interface, map socket -> iface address (IP + mask)
- std::map< Ptr<Socket>, Ipv4InterfaceAddress > m_socketAddresses;
-
- /// Routing table
- RoutingTable m_routingTable;
- /// A "drop-front" queue used by the routing layer to buffer packets to which it does not have a route.
- RequestQueue m_queue;
- /// Broadcast ID
- uint32_t m_requestId;
- /// Request sequence number
- uint32_t m_seqNo;
- /// Handle duplicated RREQ
- IdCache m_rreqIdCache;
- /// Handle duplicated broadcast/multicast packets
- DuplicatePacketDetection m_dpd;
- /// Handle neighbors
- Neighbors m_nb;
- /// Number of RREQs used for RREQ rate control
- uint16_t m_rreqCount;
-
- /// Unicast callback for own packets
- UnicastForwardCallback m_scb;
- /// Error callback for own packets
- ErrorCallback m_ecb;
-
-private:
- /// Start protocol operation
- void Start ();
- /// If route exists and valid, forward packet.
- bool Forwarding (Ptr<const Packet> p, const Ipv4Header & header, UnicastForwardCallback ucb, ErrorCallback ecb);
- /**
- * To reduce congestion in a network, repeated attempts by a source node at route discovery
- * for a single destination MUST utilize a binary exponential backoff.
- */
- void ScheduleRreqRetry (Ipv4Address dst);
- /**
- * Set lifetime field in routing table entry to the maximum of existing lifetime and lt, if the entry exists
- * \param addr - destination address
- * \param lt - proposed time for lifetime field in routing table entry for destination with address addr.
- * \return true if route to destination address addr exist
- */
- bool UpdateRouteLifeTime (Ipv4Address addr, Time lt);
- /**
- * Update neighbor record.
- * \param receiver is supposed to be my interface
- * \param sender is supposed to be IP address of my neighbor.
- */
- void UpdateRouteToNeighbor (Ipv4Address sender, Ipv4Address receiver);
- /// Check that packet is send from own interface
- bool IsMyOwnAddress (Ipv4Address src);
- /// Find socket with local interface address iface
- Ptr<Socket> FindSocketWithInterfaceAddress (Ipv4InterfaceAddress iface) const;
- /// Process hello message
- void ProcessHello (RrepHeader const & rrepHeader, Ipv4Address receiverIfaceAddr);
-
- ///\name Receive control packets
- //\{
- /// Receive and process control packet
- void RecvAodv (Ptr<Socket> socket);
- /// Receive RREQ
- void RecvRequest (Ptr<Packet> p, Ipv4Address receiver, Ipv4Address src);
- /// Receive RREP
- void RecvReply (Ptr<Packet> p, Ipv4Address my ,Ipv4Address src);
- /// Receive RREP_ACK
- void RecvReplyAck (Ipv4Address neighbor);
- /// Receive RERR from node with address src
- void RecvError (Ptr<Packet> p, Ipv4Address src);
- //\}
-
- ///\name Send
- //\{
- /// Forward packet from route request queue
- void SendPacketFromQueue (Ipv4Address dst, Ptr<Ipv4Route> route);
- /// Aux. send helper
- void Send (Ptr<Ipv4Route>, Ptr<const Packet>, const Ipv4Header &);
- /// Send hello
- void SendHello ();
- /// Send RREQ
- void SendRequest (Ipv4Address dst);
- /// Send RREP
- void SendReply (RreqHeader const & rreqHeader, RoutingTableEntry const & toOrigin);
- /** Send RREP by intermediate node
- * \param toDst routing table entry to destination
- * \param toOrigin routing table entry to originator
- * \param gratRep indicates whether a gratuitous RREP should be unicast to destination
- */
- void SendReplyByIntermediateNode (RoutingTableEntry & toDst, RoutingTableEntry & toOrigin, bool gratRep);
- /// Send RREP_ACK
- void SendReplyAck (Ipv4Address neighbor);
- /// Initiate RERR
- void SendRerrWhenBreaksLinkToNextHop (Ipv4Address nextHop);
- /// Forward RERR
- void SendRerrMessage(Ptr<Packet> packet, std::vector<Ipv4Address> precursors);
- /**
- * Send RERR message when no route to forward input packet. Unicast if there is reverse route to originating node, broadcast otherwise.
- * \param dst - destination node IP address
- * \param dstSeqNo - destination node sequence number
- * \param origin - originating node IP address
- */
- void SendRerrWhenNoRouteToForward (Ipv4Address dst, uint32_t dstSeqNo, Ipv4Address origin);
- //\}
-
- /// Notify that packet is dropped for some reason
- void Drop(Ptr<const Packet>, const Ipv4Header &, Socket::SocketErrno);
-
- /// Hello timer
- Timer m_htimer;
- /// Schedule next send of hello message
- void HelloTimerExpire ();
- /// RREQ rate limit timer
- Timer m_rreqRateLimitTimer;
- /// Reset RREQ count and schedule RREQ rate limit timer with delay 1 sec.
- void RreqRateLimitTimerExpire ();
- /// Map IP address + RREQ timer.
- std::map<Ipv4Address, Timer> m_addressReqTimer;
- /// Handle route discovery process
- void RouteRequestTimerExpire (Ipv4Address dst);
- /// Mark link to neighbor node as unidirectional for blacklistTimeout
- void AckTimerExpire (Ipv4Address neighbor, Time blacklistTimeout);
-
-};
-
-}
-}
-#endif /* AODVROUTINGPROTOCOL_H */
--- a/src/routing/manet/aodv/aodv-rqueue.cc Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,151 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-#include "aodv-rqueue.h"
-#include <algorithm>
-#include <functional>
-#include "ns3/ipv4-route.h"
-#include "ns3/socket.h"
-#include "ns3/log.h"
-
-NS_LOG_COMPONENT_DEFINE ("AodvRequestQueue");
-
-namespace ns3
-{
-namespace aodv
-{
-uint32_t
-RequestQueue::GetSize ()
-{
- Purge ();
- return m_queue.size ();
-}
-
-bool
-RequestQueue::Enqueue (QueueEntry & entry)
-{
- Purge ();
- for (std::vector<QueueEntry>::const_iterator i = m_queue.begin (); i
- != m_queue.end (); ++i)
- {
- if ((i->GetPacket ()->GetUid () == entry.GetPacket ()->GetUid ())
- && (i->GetIpv4Header ().GetDestination ()
- == entry.GetIpv4Header ().GetDestination ()))
- return false;
- }
- entry.SetExpireTime (m_queueTimeout);
- if (m_queue.size () == m_maxLen)
- {
- Drop (m_queue.front (), "Drop the most aged packet"); // Drop the most aged packet
- m_queue.erase (m_queue.begin ());
- }
- m_queue.push_back (entry);
- return true;
-}
-
-void
-RequestQueue::DropPacketWithDst (Ipv4Address dst)
-{
- NS_LOG_FUNCTION (this << dst);
- Purge ();
- const Ipv4Address addr = dst;
- for (std::vector<QueueEntry>::iterator i = m_queue.begin (); i
- != m_queue.end (); ++i)
- {
- if (IsEqual (*i, dst))
- {
- Drop (*i, "DropPacketWithDst ");
- }
- }
- m_queue.erase (std::remove_if (m_queue.begin (), m_queue.end (),
- std::bind2nd (std::ptr_fun (RequestQueue::IsEqual), dst)), m_queue.end ());
-}
-
-bool
-RequestQueue::Dequeue (Ipv4Address dst, QueueEntry & entry)
-{
- Purge ();
- for (std::vector<QueueEntry>::iterator i = m_queue.begin (); i != m_queue.end (); ++i)
- {
- if (i->GetIpv4Header ().GetDestination () == dst)
- {
- entry = *i;
- m_queue.erase (i);
- return true;
- }
- }
- return false;
-}
-
-bool
-RequestQueue::Find (Ipv4Address dst)
-{
- for (std::vector<QueueEntry>::const_iterator i = m_queue.begin (); i
- != m_queue.end (); ++i)
- {
- if (i->GetIpv4Header ().GetDestination () == dst)
- return true;
- }
- return false;
-}
-
-struct IsExpired
-{
- bool
- operator() (QueueEntry const & e) const
- {
- return (e.GetExpireTime () < Seconds (0));
- }
-};
-
-void
-RequestQueue::Purge ()
-{
- IsExpired pred;
- for (std::vector<QueueEntry>::iterator i = m_queue.begin (); i
- != m_queue.end (); ++i)
- {
- if (pred (*i))
- {
- Drop (*i, "Drop outdated packet ");
- }
- }
- m_queue.erase (std::remove_if (m_queue.begin (), m_queue.end (), pred),
- m_queue.end ());
-}
-
-void
-RequestQueue::Drop (QueueEntry en, std::string reason)
-{
- NS_LOG_LOGIC (reason << en.GetPacket ()->GetUid () << " " << en.GetIpv4Header ().GetDestination ());
- en.GetErrorCallback () (en.GetPacket (), en.GetIpv4Header (),
- Socket::ERROR_NOROUTETOHOST);
- return;
-}
-
-}
-}
--- a/src/routing/manet/aodv/aodv-rqueue.h Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,137 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-#ifndef AODV_RQUEUE_H
-#define AODV_RQUEUE_H
-
-#include <vector>
-#include "ns3/ipv4-routing-protocol.h"
-#include "ns3/simulator.h"
-
-
-namespace ns3 {
-namespace aodv {
-
-/**
- * \ingroup aodv
- * \brief AODV Queue Entry
- */
-class QueueEntry
-{
-public:
- typedef Ipv4RoutingProtocol::UnicastForwardCallback UnicastForwardCallback;
- typedef Ipv4RoutingProtocol::ErrorCallback ErrorCallback;
- /// c-tor
- QueueEntry (Ptr<const Packet> pa = 0, Ipv4Header const & h = Ipv4Header (),
- UnicastForwardCallback ucb = UnicastForwardCallback (),
- ErrorCallback ecb = ErrorCallback (), Time exp = Simulator::Now ()) :
- m_packet (pa), m_header (h), m_ucb (ucb), m_ecb (ecb),
- m_expire (exp + Simulator::Now ())
- {}
-
- /**
- * Compare queue entries
- * \return true if equal
- */
- bool operator== (QueueEntry const & o) const
- {
- return ((m_packet == o.m_packet) && (m_header.GetDestination () == o.m_header.GetDestination ()) && (m_expire == o.m_expire));
- }
- ///\name Fields
- //\{
- UnicastForwardCallback GetUnicastForwardCallback () const { return m_ucb; }
- void SetUnicastForwardCallback (UnicastForwardCallback ucb) { m_ucb = ucb; }
- ErrorCallback GetErrorCallback () const { return m_ecb; }
- void SetErrorCallback (ErrorCallback ecb) { m_ecb = ecb; }
- Ptr<const Packet> GetPacket () const { return m_packet; }
- void SetPacket (Ptr<const Packet> p) { m_packet = p; }
- Ipv4Header GetIpv4Header() const { return m_header; }
- void SetIpv4Header (Ipv4Header h) { m_header = h; }
- void SetExpireTime (Time exp) { m_expire = exp + Simulator::Now(); }
- Time GetExpireTime () const { return m_expire - Simulator::Now(); }
- //\}
-private:
- /// Data packet
- Ptr<const Packet> m_packet;
- /// IP header
- Ipv4Header m_header;
- /// Unicast forward callback
- UnicastForwardCallback m_ucb;
- /// Error callback
- ErrorCallback m_ecb;
- /// Expire time for queue entry
- Time m_expire;
-};
-/**
- * \ingroup aodv
- * \brief AODV route request queue
- *
- * Since AODV is an on demand routing we queue requests while looking for route.
- */
-class RequestQueue
-{
-public:
- /// Default c-tor
- RequestQueue (uint32_t maxLen, Time routeToQueueTimeout) :
- m_maxLen (maxLen), m_queueTimeout (routeToQueueTimeout)
- {
- }
- /// Push entry in queue, if there is no entry with the same packet and destination address in queue.
- bool Enqueue (QueueEntry & entry);
- /// Return first found (the earliest) entry for given destination
- bool Dequeue (Ipv4Address dst, QueueEntry & entry);
- /// Remove all packets with destination IP address dst
- void DropPacketWithDst (Ipv4Address dst);
- /// Finds whether a packet with destination dst exists in the queue
- bool Find (Ipv4Address dst);
- /// Number of entries
- uint32_t GetSize ();
- ///\name Fields
- //\{
- uint32_t GetMaxQueueLen () const { return m_maxLen; }
- void SetMaxQueueLen (uint32_t len) { m_maxLen = len; }
- Time GetQueueTimeout () const { return m_queueTimeout; }
- void SetQueueTimeout (Time t) { m_queueTimeout = t; }
- //\}
-
-private:
- std::vector<QueueEntry> m_queue;
- /// Remove all expired entries
- void Purge ();
- /// Notify that packet is dropped from queue by timeout
- void Drop (QueueEntry en, std::string reason);
- /// The maximum number of packets that we allow a routing protocol to buffer.
- uint32_t m_maxLen;
- /// The maximum period of time that a routing protocol is allowed to buffer a packet for, seconds.
- Time m_queueTimeout;
- static bool IsEqual (QueueEntry en, const Ipv4Address dst) { return (en.GetIpv4Header ().GetDestination () == dst); }
-};
-
-
-}}
-
-#endif /* AODV_RQUEUE_H */
--- a/src/routing/manet/aodv/aodv-rtable.cc Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,347 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-#include "aodv-rtable.h"
-#include <algorithm>
-#include "ns3/simulator.h"
-#include "ns3/log.h"
-
-NS_LOG_COMPONENT_DEFINE ("AodvRoutingTable");
-
-namespace ns3
-{
-namespace aodv
-{
-
-/*
- The Routing Table
- */
-
-RoutingTableEntry::RoutingTableEntry (Ptr<NetDevice> dev, Ipv4Address dst, bool vSeqNo, u_int32_t seqNo,
- Ipv4InterfaceAddress iface, u_int16_t hops, Ipv4Address nextHop, Time lifetime) :
- m_ackTimer (Timer::CANCEL_ON_DESTROY),
- m_validSeqNo (vSeqNo), m_seqNo (seqNo), m_hops (hops),
- m_lifeTime (lifetime + Simulator::Now ()), m_iface (iface), m_flag (VALID),
- m_reqCount (0), m_blackListState (false), m_blackListTimeout (Simulator::Now ())
-{
- m_ipv4Route = Create<Ipv4Route> ();
- m_ipv4Route->SetDestination (dst);
- m_ipv4Route->SetGateway (nextHop);
- m_ipv4Route->SetSource (m_iface.GetLocal ());
- m_ipv4Route->SetOutputDevice (dev);
-}
-
-RoutingTableEntry::~RoutingTableEntry ()
-{
-}
-
-bool
-RoutingTableEntry::InsertPrecursor (Ipv4Address id)
-{
- if (!LookupPrecursor (id))
- {
- m_precursorList.push_back (id);
- return true;
- }
- else
- return false;
-}
-
-bool
-RoutingTableEntry::LookupPrecursor (Ipv4Address id)
-{
- for (std::vector<Ipv4Address>::const_iterator i = m_precursorList.begin (); i
- != m_precursorList.end (); ++i)
- {
- if (*i == id)
- return true;
- }
- return false;
-}
-
-bool
-RoutingTableEntry::DeletePrecursor (Ipv4Address id)
-{
- std::vector<Ipv4Address>::iterator i = std::remove (m_precursorList.begin (),
- m_precursorList.end (), id);
- if (i == m_precursorList.end ())
- return false;
- else
- m_precursorList.erase (i, m_precursorList.end ());
- return true;
-}
-
-void
-RoutingTableEntry::DeleteAllPrecursors ()
-{
- m_precursorList.clear ();
-}
-
-bool
-RoutingTableEntry::IsPrecursorListEmpty () const
-{
- return m_precursorList.empty ();
-}
-
-void
-RoutingTableEntry::GetPrecursors (std::vector<Ipv4Address> & prec) const
-{
- if (IsPrecursorListEmpty ())
- return;
- for (std::vector<Ipv4Address>::const_iterator i = m_precursorList.begin (); i
- != m_precursorList.end (); ++i)
- {
- bool result = true;
- for (std::vector<Ipv4Address>::const_iterator j = prec.begin (); j
- != prec.end (); ++j)
- {
- if (*j == *i)
- result = false;
- }
- if (result)
- prec.push_back (*i);
- }
-}
-
-void
-RoutingTableEntry::Invalidate (Time badLinkLifetime)
-{
- if (m_flag == INVALID)
- return;
- m_flag = INVALID;
- m_reqCount = 0;
- m_lifeTime = badLinkLifetime + Simulator::Now ();
-}
-
-void
-RoutingTableEntry::Print (std::ostream & os) const
-{
- os << m_ipv4Route->GetDestination () << "\t" << m_ipv4Route->GetGateway ()
- << "\t" << m_iface.GetLocal () << "\t";
- switch (m_flag)
- {
- case VALID:
- {
- os << "UP";
- break;
- }
- case INVALID:
- {
- os << "DOWN";
- break;
- }
- case IN_SEARCH:
- {
- os << "IN_SEARCH";
- break;
- }
- }
- os << "\t" << (m_lifeTime - Simulator::Now ()).GetSeconds () << "\t"
- << m_hops << "\n";
-}
-
-/*
- The Routing Table
- */
-
-RoutingTable::RoutingTable (Time t) :
- m_badLinkLifetime (t)
-{
-}
-
-bool
-RoutingTable::LookupRoute (Ipv4Address id, RoutingTableEntry & rt)
-{
- Purge ();
- if (m_ipv4AddressEntry.empty ())
- return false;
- std::map<Ipv4Address, RoutingTableEntry>::const_iterator i =
- m_ipv4AddressEntry.find (id);
- if (i == m_ipv4AddressEntry.end ())
- return false;
- rt = i->second;
- return true;
-}
-
-bool
-RoutingTable::DeleteRoute (Ipv4Address dst)
-{
- Purge ();
- if (m_ipv4AddressEntry.erase (dst) != 0)
- return true;
- return false;
-}
-
-bool
-RoutingTable::AddRoute (RoutingTableEntry & rt)
-{
- if (rt.GetFlag () != IN_SEARCH)
- rt.SetRreqCnt (0);
- std::pair<std::map<Ipv4Address, RoutingTableEntry>::iterator, bool> result =
- m_ipv4AddressEntry.insert (std::make_pair (rt.GetDestination (), rt));
- return result.second;
-}
-
-bool
-RoutingTable::Update (RoutingTableEntry & rt)
-{
- std::map<Ipv4Address, RoutingTableEntry>::iterator i =
- m_ipv4AddressEntry.find (rt.GetDestination ());
- if (i == m_ipv4AddressEntry.end ())
- return false;
- i->second = rt;
- if (i->second.GetFlag () != IN_SEARCH)
- i->second.SetRreqCnt (0);
- return true;
-}
-
-bool
-RoutingTable::SetEntryState (Ipv4Address id, RouteFlags state)
-{
- std::map<Ipv4Address, RoutingTableEntry>::iterator i =
- m_ipv4AddressEntry.find (id);
- if (i == m_ipv4AddressEntry.end ())
- return false;
- i->second.SetFlag (state);
- i->second.SetRreqCnt (0);
- return true;
-}
-
-void
-RoutingTable::GetListOfDestinationWithNextHop (Ipv4Address nextHop, std::map<Ipv4Address, uint32_t> & unreachable )
-{
- Purge ();
- unreachable.clear ();
- for (std::map<Ipv4Address, RoutingTableEntry>::const_iterator i =
- m_ipv4AddressEntry.begin (); i != m_ipv4AddressEntry.end (); ++i)
- {
- if (i->second.GetNextHop () == nextHop)
- {
- unreachable.insert (std::make_pair (i->first, i->second.GetSeqNo ()));
- }
- }
-}
-
-void
-RoutingTable::InvalidateRoutesWithDst (const std::map<Ipv4Address, uint32_t> & unreachable)
-{
- Purge ();
- for (std::map<Ipv4Address, RoutingTableEntry>::iterator i =
- m_ipv4AddressEntry.begin (); i != m_ipv4AddressEntry.end (); ++i)
- {
- for (std::map<Ipv4Address, uint32_t>::const_iterator j =
- unreachable.begin (); j != unreachable.end (); ++j)
- {
- if ((i->first == j->first) && (i->second.GetFlag () == VALID))
- {
- NS_LOG_LOGIC ("Invalidate route with destination address " << i->first);
- i->second.Invalidate (m_badLinkLifetime);
- }
- }
- }
-}
-
-void
-RoutingTable::DeleteAllRoutesFromInterface (Ipv4InterfaceAddress iface)
-{
- if (m_ipv4AddressEntry.empty ())
- return;
- for (std::map<Ipv4Address, RoutingTableEntry>::iterator i =
- m_ipv4AddressEntry.begin (); i != m_ipv4AddressEntry.end ();)
- {
- if (i->second.GetInterface () == iface)
- {
- std::map<Ipv4Address, RoutingTableEntry>::iterator tmp = i;
- ++i;
- m_ipv4AddressEntry.erase (tmp);
- }
- else
- ++i;
- }
-}
-
-void
-RoutingTable::Purge ()
-{
- if (m_ipv4AddressEntry.empty ())
- return;
- for (std::map<Ipv4Address, RoutingTableEntry>::iterator i =
- m_ipv4AddressEntry.begin (); i != m_ipv4AddressEntry.end ();)
- {
- if (i->second.GetLifeTime () < Seconds (0))
- {
- if (i->second.GetFlag () == INVALID)
- {
- std::map<Ipv4Address, RoutingTableEntry>::iterator tmp = i;
- ++i;
- m_ipv4AddressEntry.erase (tmp);
- }
- else if (i->second.GetFlag () == VALID)
- {
- NS_LOG_LOGIC ("Invalidate route with destination address " << i->first);
- i->second.Invalidate (m_badLinkLifetime);
- ++i;
- }
- else
- ++i;
- }
- else
- {
- ++i;
- }
- }
-}
-
-bool
-RoutingTable::MarkLinkAsUnidirectional (Ipv4Address neighbor, Time blacklistTimeout)
-{
- std::map<Ipv4Address, RoutingTableEntry>::iterator i =
- m_ipv4AddressEntry.find (neighbor);
- if (i == m_ipv4AddressEntry.end ())
- return false;
- i->second.SetUnidirectional (true);
- i->second.SetBalcklistTimeout (blacklistTimeout);
- i->second.SetRreqCnt (0);
- return true;
-}
-
-void
-RoutingTable::Print (std::ostream &os)
-{
- Purge ();
- os << "\nAODV Routing table\n"
- << "Destination\tGateway\t\tInterface\tFlag\tExpire\tHops\n";
- for (std::map<Ipv4Address, RoutingTableEntry>::const_iterator i =
- m_ipv4AddressEntry.begin (); i != m_ipv4AddressEntry.end (); ++i)
- {
- i->second.Print (os);
- }
- os << "\n";
-}
-
-}
-}
--- a/src/routing/manet/aodv/aodv-rtable.h Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,252 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-#ifndef AODV_RTABLE_H
-#define AODV_RTABLE_H
-
-#include <cassert>
-#include <map>
-#include <sys/types.h>
-#include "ns3/ipv4.h"
-#include "ns3/ipv4-route.h"
-#include "ns3/timer.h"
-#include "ns3/net-device.h"
-
-namespace ns3 {
-namespace aodv {
-
-/**
- * \ingroup aodv
- * \brief Route record states
- */
-enum RouteFlags
-{
- VALID = 0, //!< VALID
- INVALID = 1, //!< INVALID
- IN_SEARCH = 2, //!< IN_SEARCH
-};
-
-/**
- * \ingroup aodv
- * \brief Routing table entry
- */
-class RoutingTableEntry
-{
-public:
- /// c-to
- RoutingTableEntry (Ptr<NetDevice> dev = 0,Ipv4Address dst = Ipv4Address(), bool vSeqNo = false, u_int32_t m_seqNo = 0,
- Ipv4InterfaceAddress iface = Ipv4InterfaceAddress(), u_int16_t hops = 0,
- Ipv4Address nextHop = Ipv4Address(), Time lifetime = Simulator::Now());
-
- ~RoutingTableEntry ();
-
- ///\name Precursors management
- //\{
- /**
- * Insert precursor in precursor list if it doesn't yet exist in the list
- * \param id precursor address
- * \return true on success
- */
- bool InsertPrecursor (Ipv4Address id);
- /**
- * Lookup precursor by address
- * \param id precursor address
- * \return true on success
- */
- bool LookupPrecursor (Ipv4Address id);
- /**
- * \brief Delete precursor
- * \param id precursor address
- * \return true on success
- */
- bool DeletePrecursor (Ipv4Address id);
- /// Delete all precursors
- void DeleteAllPrecursors ();
- /**
- * Check that precursor list empty
- * \return true if precursor list empty
- */
- bool IsPrecursorListEmpty () const;
- /**
- * Inserts precursors in vector prec if they does not yet exist in vector
- */
- void GetPrecursors (std::vector<Ipv4Address> & prec) const;
- //\}
-
- /// Mark entry as "down" (i.e. disable it)
- void Invalidate (Time badLinkLifetime);
- ///\name Fields
- //\{
- Ipv4Address GetDestination () const { return m_ipv4Route->GetDestination(); }
- Ptr<Ipv4Route> GetRoute () const { return m_ipv4Route; }
- void SetRoute (Ptr<Ipv4Route> r) { m_ipv4Route = r; }
- void SetNextHop (Ipv4Address nextHop) { m_ipv4Route->SetGateway(nextHop); }
- Ipv4Address GetNextHop () const { return m_ipv4Route->GetGateway(); }
- void SetOutputDevice (Ptr<NetDevice> dev) { m_ipv4Route->SetOutputDevice(dev); }
- Ptr<NetDevice> GetOutputDevice () const { return m_ipv4Route->GetOutputDevice(); }
- Ipv4InterfaceAddress GetInterface () const { return m_iface;}
- void SetInterface (Ipv4InterfaceAddress iface) { m_iface = iface; }
- void SetValidSeqNo (bool s) { m_validSeqNo = s; }
- bool GetValidSeqNo () const { return m_validSeqNo; }
- void SetSeqNo (uint32_t sn) { m_seqNo = sn; }
- uint32_t GetSeqNo () const { return m_seqNo; }
- void SetHop (uint16_t hop) { m_hops = hop; }
- uint16_t GetHop () const {return m_hops; }
- void SetLifeTime (Time lt) { m_lifeTime = lt + Simulator::Now(); }
- Time GetLifeTime () const { return m_lifeTime - Simulator::Now(); }
- void SetFlag (RouteFlags flag) { m_flag = flag; }
- RouteFlags GetFlag () const { return m_flag; }
- void SetRreqCnt (uint8_t n) { m_reqCount = n; }
- uint8_t GetRreqCnt () const { return m_reqCount; }
- void IncrementRreqCnt () { m_reqCount++; }
- void SetUnidirectional (bool u) { m_blackListState = u; }
- bool IsUnidirectional () const { return m_blackListState; }
- void SetBalcklistTimeout (Time t) { m_blackListTimeout = t; }
- Time GetBlacklistTimeout () const { return m_blackListTimeout; }
- /// RREP_ACK timer
- Timer m_ackTimer;
- //\}
-
- /**
- * \brief Compare destination address
- * \return true if equal
- */
- bool operator== (Ipv4Address const dst) const
- {
- return (m_ipv4Route->GetDestination () == dst);
- }
- void Print(std::ostream & os) const;
-
-private:
- /// Valid Destination Sequence Number flag
- bool m_validSeqNo;
- /// Destination Sequence Number, if m_validSeqNo = true
- uint32_t m_seqNo;
- /// Hop Count (number of hops needed to reach destination)
- uint16_t m_hops;
- /**
- * \brief Expiration or deletion time of the route
- * Lifetime field in the routing table plays dual role --
- * for an active route it is the expiration time, and for an invalid route
- * it is the deletion time.
- */
- Time m_lifeTime;
- /** Ip route, include
- * - destination address
- * - source address
- * - next hop address (gateway)
- * - output device
- */
- Ptr<Ipv4Route> m_ipv4Route;
- /// Output interface address
- Ipv4InterfaceAddress m_iface;
- /// Routing flags: valid, invalid or in search
- RouteFlags m_flag;
-
- /// List of precursors
- std::vector<Ipv4Address> m_precursorList;
- /// When I can send another request
- Time m_routeRequestTimout;
- /// Number of route requests
- uint8_t m_reqCount;
- /// Indicate if this entry is in "blacklist"
- bool m_blackListState;
- /// Time for which the node is put into the blacklist
- Time m_blackListTimeout;
-};
-
-/**
- * \ingroup aodv
- * \brief The Routing table used by AODV protocol
- */
-class RoutingTable
-{
-public:
- /// c-tor
- RoutingTable (Time t);
- ///\name Handle life time of invalid route
- //\{
- Time GetBadLinkLifetime () const { return m_badLinkLifetime; }
- void SetBadLinkLifetime (Time t) { m_badLinkLifetime = t; }
- //\}
- /**
- * Add routing table entry if it doesn't yet exist in routing table
- * \param r routing table entry
- * \return true in success
- */
- bool AddRoute (RoutingTableEntry & r);
- /**
- * Delete routing table entry with destination address dst, if it exists.
- * \param dst destination address
- * \return true on success
- */
- bool DeleteRoute (Ipv4Address dst);
- /**
- * Lookup routing table entry with destination address dst
- * \param dst destination address
- * \param rt entry with destination address dst, if exists
- * \return true on success
- */
- bool LookupRoute (Ipv4Address dst, RoutingTableEntry & rt);
- /// Update routing table
- bool Update (RoutingTableEntry & rt);
- /// Set routing table entry flags
- bool SetEntryState (Ipv4Address dst, RouteFlags state);
- /// Lookup routing entries with next hop Address dst and not empty list of precursors.
- void GetListOfDestinationWithNextHop (Ipv4Address nextHop, std::map<Ipv4Address, uint32_t> & unreachable);
- /**
- * Update routing entries with this destinations as follows:
- * 1. The destination sequence number of this routing entry, if it
- * exists and is valid, is incremented.
- * 2. The entry is invalidated by marking the route entry as invalid
- * 3. The Lifetime field is updated to current time plus DELETE_PERIOD.
- */
- void InvalidateRoutesWithDst (std::map<Ipv4Address, uint32_t> const & unreachable);
- /// Delete all route from interface with address iface
- void DeleteAllRoutesFromInterface (Ipv4InterfaceAddress iface);
- /// Delete all entries from routing table
- void Clear () { m_ipv4AddressEntry.clear (); }
- /// Delete all outdated entries and invalidate valid entry if Lifetime is expired
- void Purge ();
- /** Mark entry as unidirectional (e.g. add this neighbor to "blacklist" for blacklistTimeout period)
- * \param neighbor - neighbor address link to which assumed to be unidirectional
- * \param blacklistTimeout - time for which the neighboring node is put into the blacklist
- * \return true on success
- */
- bool MarkLinkAsUnidirectional(Ipv4Address neighbor, Time blacklistTimeout);
- /// Print routing table
- void Print(std::ostream &os);
-
-private:
- std::map<Ipv4Address, RoutingTableEntry> m_ipv4AddressEntry;
- /// Deletion time for invalid routes
- Time m_badLinkLifetime;
-};
-
-}}
-
-#endif /* AODV_RTABLE_H */
--- a/src/routing/manet/aodv/aodv-test-suite.cc Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,554 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Authors: Pavel Boyko <boyko@iitp.ru>
- */
-#include "ns3/test.h"
-#include "aodv-neighbor.h"
-#include "aodv-packet.h"
-#include "aodv-rqueue.h"
-#include "aodv-rtable.h"
-#include "ns3/ipv4-route.h"
-
-namespace ns3
-{
-namespace aodv
-{
-
-/// Unit test for neighbors
-struct NeighborTest : public TestCase
-{
- NeighborTest () : TestCase ("Neighbor"), neighbor (0) { }
- virtual bool DoRun ();
- void Handler (Ipv4Address addr);
- void CheckTimeout1 ();
- void CheckTimeout2 ();
- void CheckTimeout3 ();
- Neighbors * neighbor;
-};
-
-void
-NeighborTest::Handler (Ipv4Address addr)
-{
-}
-
-void
-NeighborTest::CheckTimeout1 ()
-{
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.2.3.4")), true, "Neighbor exists");
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.1.1.1")), true, "Neighbor exists");
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("2.2.2.2")), true, "Neighbor exists");
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("3.3.3.3")), true, "Neighbor exists");
-}
-void
-NeighborTest::CheckTimeout2 ()
-{
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.2.3.4")), false, "Neighbor doesn't exist");
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.1.1.1")), false, "Neighbor doesn't exist");
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("2.2.2.2")), false, "Neighbor doesn't exist");
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("3.3.3.3")), true, "Neighbor exists");
-}
-void
-NeighborTest::CheckTimeout3 ()
-{
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.2.3.4")), false, "Neighbor doesn't exist");
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.1.1.1")), false, "Neighbor doesn't exist");
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("2.2.2.2")), false, "Neighbor doesn't exist");
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("3.3.3.3")), false, "Neighbor doesn't exist");
-}
-
-bool
-NeighborTest::DoRun ()
-{
- Neighbors nb (Seconds (1));
- neighbor = &nb;
- neighbor->SetCallback (MakeCallback (&NeighborTest::Handler, this));
- neighbor->Update (Ipv4Address ("1.2.3.4"), Seconds (1));
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.2.3.4")), true, "Neighbor exists");
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("4.3.2.1")), false, "Neighbor doesn't exist");
- neighbor->Update (Ipv4Address ("1.2.3.4"), Seconds (10));
- NS_TEST_EXPECT_MSG_EQ (neighbor->IsNeighbor (Ipv4Address ("1.2.3.4")), true, "Neighbor exists");
- NS_TEST_EXPECT_MSG_EQ (neighbor->GetExpireTime (Ipv4Address ("1.2.3.4")), Seconds (10), "Known expire time");
- NS_TEST_EXPECT_MSG_EQ (neighbor->GetExpireTime (Ipv4Address ("4.3.2.1")), Seconds (0), "Known expire time");
- neighbor->Update (Ipv4Address ("1.1.1.1"), Seconds (5));
- neighbor->Update (Ipv4Address ("2.2.2.2"), Seconds (10));
- neighbor->Update (Ipv4Address ("3.3.3.3"), Seconds (20));
-
- Simulator::Schedule (Seconds (2), &NeighborTest::CheckTimeout1, this);
- Simulator::Schedule (Seconds (15), &NeighborTest::CheckTimeout2, this);
- Simulator::Schedule (Seconds (30), &NeighborTest::CheckTimeout3, this);
- Simulator::Run ();
- Simulator::Destroy ();
-
- return GetErrorStatus ();
-}
-//-----------------------------------------------------------------------------
-struct TypeHeaderTest : public TestCase
-{
- TypeHeaderTest () : TestCase ("AODV TypeHeader")
- {
- }
- virtual bool DoRun ()
- {
- TypeHeader h (AODVTYPE_RREQ);
- NS_TEST_EXPECT_MSG_EQ (h.IsValid (), true, "Default header is valid");
- NS_TEST_EXPECT_MSG_EQ (h.Get (), AODVTYPE_RREQ, "Default header is RREQ");
-
- Ptr<Packet> p = Create<Packet> ();
- p->AddHeader (h);
- TypeHeader h2 (AODVTYPE_RREP);
- uint32_t bytes = p->RemoveHeader (h2);
- NS_TEST_EXPECT_MSG_EQ (bytes, 1, "Type header is 1 byte long");
- NS_TEST_EXPECT_MSG_EQ (h, h2, "Round trip serialization works");
- return GetErrorStatus ();
- }
-};
-//-----------------------------------------------------------------------------
-/// Unit test for RREQ
-struct RreqHeaderTest : public TestCase
-{
- RreqHeaderTest () : TestCase ("AODV RREQ")
- {
- }
- virtual bool DoRun ()
- {
- RreqHeader h (/*flags*/0, /*reserved*/0, /*hopCount*/6, /*requestID*/1, /*dst*/Ipv4Address ("1.2.3.4"),
- /*dstSeqNo*/40, /*origin*/Ipv4Address ("4.3.2.1"), /*originSeqNo*/10);
- NS_TEST_EXPECT_MSG_EQ (h.GetGratiousRrep (), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetDestinationOnly (), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetHopCount (), 6, "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetId (), 1, "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetDst (), Ipv4Address ("1.2.3.4"), "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetDstSeqno (), 40, "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetOrigin (), Ipv4Address ("4.3.2.1"), "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetOriginSeqno (), 10, "trivial");
-
- h.SetGratiousRrep (true);
- NS_TEST_EXPECT_MSG_EQ (h.GetGratiousRrep (), true, "trivial");
- h.SetDestinationOnly (true);
- NS_TEST_EXPECT_MSG_EQ (h.GetDestinationOnly (), true, "trivial");
- h.SetUnknownSeqno (true);
- NS_TEST_EXPECT_MSG_EQ (h.GetUnknownSeqno (), true, "trivial");
- h.SetDst (Ipv4Address ("1.1.1.1"));
- NS_TEST_EXPECT_MSG_EQ (h.GetDst (), Ipv4Address ("1.1.1.1"), "trivial");
- h.SetDstSeqno (5);
- NS_TEST_EXPECT_MSG_EQ (h.GetDstSeqno (), 5, "trivial");
- h.SetHopCount (7);
- NS_TEST_EXPECT_MSG_EQ (h.GetHopCount (), 7, "trivial");
- h.SetId (55);
- NS_TEST_EXPECT_MSG_EQ (h.GetId (), 55, "trivial");
- h.SetOrigin (Ipv4Address ("4.4.4.4"));
- NS_TEST_EXPECT_MSG_EQ (h.GetOrigin (), Ipv4Address ("4.4.4.4"), "trivial");
- h.SetOriginSeqno (23);
- NS_TEST_EXPECT_MSG_EQ (h.GetOriginSeqno (), 23, "trivial");
-
- Ptr<Packet> p = Create<Packet> ();
- p->AddHeader (h);
- RreqHeader h2;
- uint32_t bytes = p->RemoveHeader (h2);
- NS_TEST_EXPECT_MSG_EQ (bytes, 23, "RREP is 23 bytes long");
- NS_TEST_EXPECT_MSG_EQ (h, h2, "Round trip serialization works");
-
- return GetErrorStatus ();
- }
-};
-//-----------------------------------------------------------------------------
-/// Unit test for RREP
-struct RrepHeaderTest : public TestCase
-{
- RrepHeaderTest () : TestCase ("AODV RREP") {}
- virtual bool DoRun ()
- {
- RrepHeader h (/*prefixSize*/0, /*hopCount*/12, /*dst*/Ipv4Address ("1.2.3.4"), /*dstSeqNo*/2,
- /*origin*/Ipv4Address ("4.3.2.1"), /*lifetime*/Seconds (3));
- NS_TEST_EXPECT_MSG_EQ (h.GetPrefixSize (), 0, "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetHopCount (), 12, "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetDst (), Ipv4Address ("1.2.3.4"), "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetDstSeqno (), 2, "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetOrigin (), Ipv4Address ("4.3.2.1"), "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetLifeTime (), Seconds (3), "trivial");
- h.SetDst (Ipv4Address ("1.1.1.1"));
- NS_TEST_EXPECT_MSG_EQ (h.GetDst (), Ipv4Address ("1.1.1.1"), "trivial");
- h.SetDstSeqno (123);
- NS_TEST_EXPECT_MSG_EQ (h.GetDstSeqno (), 123, "trivial");
- h.SetOrigin (Ipv4Address ("4.4.4.4"));
- NS_TEST_EXPECT_MSG_EQ (h.GetOrigin (), Ipv4Address ("4.4.4.4"), "trivial");
- h.SetLifeTime (MilliSeconds (1200));
- NS_TEST_EXPECT_MSG_EQ (h.GetLifeTime (), MilliSeconds (1200), "trivial");
- h.SetAckRequired (true);
- NS_TEST_EXPECT_MSG_EQ (h.GetAckRequired (), true, "trivial");
- h.SetAckRequired (false);
- NS_TEST_EXPECT_MSG_EQ (h.GetAckRequired (), false, "trivial");
- h.SetPrefixSize (2);
- NS_TEST_EXPECT_MSG_EQ (h.GetPrefixSize (), 2, "trivial");
- h.SetHopCount (15);
- NS_TEST_EXPECT_MSG_EQ (h.GetHopCount (), 15, "trivial");
-
- h.SetHello (Ipv4Address ("10.0.0.2"), 9, Seconds (15));
- NS_TEST_EXPECT_MSG_EQ (h.GetDst (), h.GetOrigin (), "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetDstSeqno (), 9, "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetLifeTime (), Seconds (15), "trivial");
-
- Ptr<Packet> p = Create<Packet> ();
- p->AddHeader (h);
- RrepHeader h2;
- uint32_t bytes = p->RemoveHeader (h2);
- NS_TEST_EXPECT_MSG_EQ (bytes, 19, "RREP is 19 bytes long");
- NS_TEST_EXPECT_MSG_EQ (h, h2, "Round trip serialization works");
- return GetErrorStatus ();
- }
-};
-//-----------------------------------------------------------------------------
-/// Unit test for RREP-ACK
-struct RrepAckHeaderTest : public TestCase
-{
- RrepAckHeaderTest () : TestCase ("AODV RREP-ACK")
- {
- }
- virtual bool DoRun()
- {
- RrepAckHeader h;
- Ptr<Packet> p = Create<Packet> ();
- p->AddHeader (h);
- RrepAckHeader h2;
- uint32_t bytes = p->RemoveHeader(h2);
- NS_TEST_EXPECT_MSG_EQ (bytes, 1, "ACK is 1 byte long");
- NS_TEST_EXPECT_MSG_EQ (h, h2, "Round trip serialization works");
- return GetErrorStatus ();
- }
-};
-//-----------------------------------------------------------------------------
-/// Unit test for RERR
-struct RerrHeaderTest : public TestCase
-{
- RerrHeaderTest () : TestCase ("AODV RERR")
- {
- }
- virtual bool DoRun()
- {
- RerrHeader h;
- h.SetNoDelete(true);
- NS_TEST_EXPECT_MSG_EQ(h.GetNoDelete(), true, "trivial");
- Ipv4Address dst = Ipv4Address("1.2.3.4");
- NS_TEST_EXPECT_MSG_EQ(h.AddUnDestination(dst, 12), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ(h.GetDestCount(), 1, "trivial");
- NS_TEST_EXPECT_MSG_EQ(h.AddUnDestination(dst, 13), true, "trivial");
- Ipv4Address dst2 = Ipv4Address("4.3.2.1");
- NS_TEST_EXPECT_MSG_EQ(h.AddUnDestination(dst2, 12), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ(h.GetDestCount(), 2, "trivial");
-
- Ptr<Packet> p = Create<Packet> ();
- p->AddHeader (h);
- RerrHeader h2;
- uint32_t bytes = p->RemoveHeader(h2);
- NS_TEST_EXPECT_MSG_EQ (bytes, h.GetSerializedSize(), "(De)Serialized size match");
- NS_TEST_EXPECT_MSG_EQ (h, h2, "Round trip serialization works");
- return GetErrorStatus ();
- }
-};
-//-----------------------------------------------------------------------------
-/// Unit test for AODV routing table entry
-struct QueueEntryTest : public TestCase
-{
- QueueEntryTest () : TestCase ("QueueEntry") {}
- void Unicast (Ptr<Ipv4Route> route, Ptr<const Packet> packet, const Ipv4Header & header) {}
- void Error (Ptr<const Packet>, const Ipv4Header &, Socket::SocketErrno) {}
- void Unicast2 (Ptr<Ipv4Route> route, Ptr<const Packet> packet, const Ipv4Header & header) {}
- void Error2 (Ptr<const Packet>, const Ipv4Header &, Socket::SocketErrno) {}
- virtual bool DoRun()
- {
- Ptr<const Packet> packet = Create<Packet> ();
- Ipv4Header h;
- h.SetDestination (Ipv4Address ("1.2.3.4"));
- h.SetSource (Ipv4Address ("4.3.2.1"));
- Ipv4RoutingProtocol::UnicastForwardCallback ucb = MakeCallback (&QueueEntryTest::Unicast, this);
- Ipv4RoutingProtocol::ErrorCallback ecb = MakeCallback (&QueueEntryTest::Error, this);
- QueueEntry entry (packet, h, ucb, ecb, Seconds (1));
- NS_TEST_EXPECT_MSG_EQ (h.GetDestination (), entry.GetIpv4Header ().GetDestination (), "trivial");
- NS_TEST_EXPECT_MSG_EQ (h.GetSource (), entry.GetIpv4Header ().GetSource (), "trivial");
- NS_TEST_EXPECT_MSG_EQ (ucb.IsEqual(entry.GetUnicastForwardCallback ()), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (ecb.IsEqual(entry.GetErrorCallback ()), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (entry.GetExpireTime (), Seconds (1), "trivial");
- NS_TEST_EXPECT_MSG_EQ (entry.GetPacket (), packet, "trivial");
- entry.SetExpireTime (Seconds (3));
- NS_TEST_EXPECT_MSG_EQ (entry.GetExpireTime (), Seconds (3), "trivial");
- Ipv4Header h2;
- h2.SetDestination(Ipv4Address ("1.1.1.1"));
- entry.SetIpv4Header (h2);
- NS_TEST_EXPECT_MSG_EQ (entry.GetIpv4Header ().GetDestination (), Ipv4Address ("1.1.1.1"), "trivial");
- Ipv4RoutingProtocol::UnicastForwardCallback ucb2 = MakeCallback (&QueueEntryTest::Unicast2, this);
- Ipv4RoutingProtocol::ErrorCallback ecb2 = MakeCallback (&QueueEntryTest::Error2, this);
- entry.SetErrorCallback (ecb2);
- NS_TEST_EXPECT_MSG_EQ (ecb2.IsEqual (entry.GetErrorCallback ()), true, "trivial");
- entry.SetUnicastForwardCallback (ucb2);
- NS_TEST_EXPECT_MSG_EQ (ucb2.IsEqual (entry.GetUnicastForwardCallback ()), true, "trivial");
-
- return GetErrorStatus();
- }
-};
-//-----------------------------------------------------------------------------
-/// Unit test for RequestQueue
-struct AodvRqueueTest : public TestCase
-{
- AodvRqueueTest () : TestCase ("Rqueue"), q (64, Seconds (30)) {}
- virtual bool DoRun ();
- void Unicast (Ptr<Ipv4Route> route, Ptr<const Packet> packet, const Ipv4Header & header) {}
- void Error (Ptr<const Packet>, const Ipv4Header &, Socket::SocketErrno) {}
- void CheckSizeLimit ();
- void CheckTimeout ();
-
- RequestQueue q;
-};
-
-bool
-AodvRqueueTest::DoRun ()
-{
- NS_TEST_EXPECT_MSG_EQ (q.GetMaxQueueLen (), 64, "trivial");
- q.SetMaxQueueLen (32);
- NS_TEST_EXPECT_MSG_EQ (q.GetMaxQueueLen (), 32, "trivial");
- NS_TEST_EXPECT_MSG_EQ (q.GetQueueTimeout (), Seconds (30), "trivial");
- q.SetQueueTimeout (Seconds(10));
- NS_TEST_EXPECT_MSG_EQ (q.GetQueueTimeout (), Seconds (10), "trivial");
-
- Ptr<const Packet> packet = Create<Packet> ();
- Ipv4Header h;
- h.SetDestination (Ipv4Address ("1.2.3.4"));
- h.SetSource (Ipv4Address ("4.3.2.1"));
- Ipv4RoutingProtocol::UnicastForwardCallback ucb = MakeCallback (&AodvRqueueTest::Unicast, this);
- Ipv4RoutingProtocol::ErrorCallback ecb = MakeCallback (&AodvRqueueTest::Error, this);
- QueueEntry e1 (packet, h, ucb, ecb, Seconds (1));
- q.Enqueue (e1);
- q.Enqueue (e1);
- q.Enqueue (e1);
- NS_TEST_EXPECT_MSG_EQ (q.Find (Ipv4Address ("1.2.3.4")), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (q.Find (Ipv4Address ("1.1.1.1")), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 1, "trivial");
- q.DropPacketWithDst (Ipv4Address ("1.2.3.4"));
- NS_TEST_EXPECT_MSG_EQ (q.Find (Ipv4Address ("1.2.3.4")), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 0, "trivial");
-
- h.SetDestination (Ipv4Address ("2.2.2.2"));
- QueueEntry e2 (packet, h, ucb, ecb, Seconds (1));
- q.Enqueue (e1);
- q.Enqueue (e2);
- Ptr<Packet> packet2 = Create<Packet> ();
- QueueEntry e3 (packet2, h, ucb, ecb, Seconds (1));
- NS_TEST_EXPECT_MSG_EQ (q.Dequeue (Ipv4Address("3.3.3.3"), e3), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (q.Dequeue (Ipv4Address ("2.2.2.2"), e3), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (q.Find (Ipv4Address ("2.2.2.2")), false, "trivial");
- q.Enqueue (e2);
- q.Enqueue (e3);
- NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 2, "trivial");
- Ptr<Packet> packet4 = Create<Packet> ();
- h.SetDestination (Ipv4Address ("1.2.3.4"));
- QueueEntry e4 (packet4, h, ucb, ecb, Seconds (20));
- q.Enqueue (e4);
- NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 3, "trivial");
- q.DropPacketWithDst (Ipv4Address ("1.2.3.4"));
- NS_TEST_EXPECT_MSG_EQ (q.GetSize(), 1, "trivial");
-
- CheckSizeLimit ();
-
- Ipv4Header header2;
- Ipv4Address dst2 ("1.2.3.4");
- header2.SetDestination (dst2);
-
- Simulator::Schedule (q.GetQueueTimeout () + Seconds (1), &AodvRqueueTest::CheckTimeout, this);
-
- Simulator::Run ();
- Simulator::Destroy ();
-
- return GetErrorStatus ();
-}
-
-void
-AodvRqueueTest::CheckSizeLimit ()
-{
- Ptr<Packet> packet = Create<Packet> ();
- Ipv4Header header;
- Ipv4RoutingProtocol::UnicastForwardCallback ucb = MakeCallback (&AodvRqueueTest::Unicast, this);
- Ipv4RoutingProtocol::ErrorCallback ecb = MakeCallback (&AodvRqueueTest::Error, this);
- QueueEntry e1 (packet, header, ucb, ecb, Seconds (1));
-
- for (uint32_t i = 0; i < q.GetMaxQueueLen (); ++i)
- q.Enqueue (e1);
- NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 2, "trivial");
-
- for (uint32_t i = 0; i < q.GetMaxQueueLen (); ++i)
- q.Enqueue (e1);
- NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 2, "trivial");
-}
-
-void
-AodvRqueueTest::CheckTimeout ()
-{
- NS_TEST_EXPECT_MSG_EQ (q.GetSize (), 0, "Must be empty now");
-}
-//-----------------------------------------------------------------------------
-/// Unit test for AODV routing table entry
-struct AodvRtableEntryTest : public TestCase
-{
- AodvRtableEntryTest () : TestCase ("RtableEntry") {}
- virtual bool DoRun()
- {
- Ptr<NetDevice> dev;
- Ipv4InterfaceAddress iface;
- RoutingTableEntry rt (/*output device*/dev, /*dst*/Ipv4Address("1.2.3.4"), /*validSeqNo*/true, /*seqNo*/10,
- /*interface*/iface, /*hop*/5, /*next hop*/Ipv4Address("3.3.3.3"), /*lifetime*/Seconds(10));
- NS_TEST_EXPECT_MSG_EQ (rt.GetOutputDevice (), dev, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetDestination (), Ipv4Address ("1.2.3.4"), "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetValidSeqNo (), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetSeqNo (), 10, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetInterface (), iface, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetHop (), 5, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetNextHop (), Ipv4Address ("3.3.3.3"), "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetLifeTime (), Seconds (10), "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetFlag (), VALID, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetRreqCnt (), 0, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.IsPrecursorListEmpty (), true, "trivial");
-
- Ptr<NetDevice> dev2;
- Ipv4InterfaceAddress iface2;
- rt.SetOutputDevice (dev2);
- NS_TEST_EXPECT_MSG_EQ (rt.GetOutputDevice (), dev2, "trivial");
- rt.SetInterface (iface2);
- NS_TEST_EXPECT_MSG_EQ (rt.GetInterface (), iface2, "trivial");
- rt.SetValidSeqNo (false);
- NS_TEST_EXPECT_MSG_EQ (rt.GetValidSeqNo (), false, "trivial");
- rt.SetFlag (INVALID);
- NS_TEST_EXPECT_MSG_EQ (rt.GetFlag (), INVALID, "trivial");
- rt.SetFlag (IN_SEARCH);
- NS_TEST_EXPECT_MSG_EQ (rt.GetFlag (), IN_SEARCH, "trivial");
- rt.SetHop (12);
- NS_TEST_EXPECT_MSG_EQ (rt.GetHop (), 12, "trivial");
- rt.SetLifeTime (Seconds (1));
- NS_TEST_EXPECT_MSG_EQ (rt.GetLifeTime (), Seconds (1), "trivial");
- rt.SetNextHop (Ipv4Address ("1.1.1.1"));
- NS_TEST_EXPECT_MSG_EQ (rt.GetNextHop (), Ipv4Address ("1.1.1.1"), "trivial");
- rt.SetUnidirectional (true);
- NS_TEST_EXPECT_MSG_EQ (rt.IsUnidirectional (), true, "trivial");
- rt.SetBalcklistTimeout (Seconds (7));
- NS_TEST_EXPECT_MSG_EQ (rt.GetBlacklistTimeout (), Seconds (7), "trivial");
- rt.SetRreqCnt (2);
- NS_TEST_EXPECT_MSG_EQ (rt.GetRreqCnt (), 2, "trivial");
- rt.IncrementRreqCnt ();
- NS_TEST_EXPECT_MSG_EQ (rt.GetRreqCnt (), 3, "trivial");
- rt.Invalidate (Seconds (13));
- NS_TEST_EXPECT_MSG_EQ (rt.GetFlag (), INVALID, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetLifeTime (), Seconds (13), "trivial");
- rt.SetLifeTime (Seconds (0.1));
- NS_TEST_EXPECT_MSG_EQ (rt.GetLifeTime (), Seconds (0.1), "trivial");
- Ptr<Ipv4Route> route = rt.GetRoute ();
- NS_TEST_EXPECT_MSG_EQ (route->GetDestination (), Ipv4Address ("1.2.3.4"), "trivial");
-
- NS_TEST_EXPECT_MSG_EQ (rt.InsertPrecursor (Ipv4Address ("10.0.0.1")), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.IsPrecursorListEmpty (), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.InsertPrecursor (Ipv4Address ("10.0.0.2")), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.InsertPrecursor (Ipv4Address ("10.0.0.2")), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.LookupPrecursor (Ipv4Address ("10.0.0.3")), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.LookupPrecursor (Ipv4Address ("10.0.0.1")), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.DeletePrecursor (Ipv4Address ("10.0.0.2")), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.LookupPrecursor (Ipv4Address ("10.0.0.2")), false, "trivial");
- std::vector<Ipv4Address> prec;
- rt.GetPrecursors (prec);
- NS_TEST_EXPECT_MSG_EQ (prec.size (), 1, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.InsertPrecursor (Ipv4Address ("10.0.0.4")), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.DeletePrecursor (Ipv4Address ("10.0.0.5")), false, "trivial");
- rt.GetPrecursors (prec);
- NS_TEST_EXPECT_MSG_EQ (prec.size (), 2, "trivial");
- rt.DeleteAllPrecursors ();
- NS_TEST_EXPECT_MSG_EQ (rt.IsPrecursorListEmpty (), true, "trivial");
- rt.GetPrecursors (prec);
- NS_TEST_EXPECT_MSG_EQ (prec.size (), 2, "trivial");
-
- return GetErrorStatus ();
- }
-};
-//-----------------------------------------------------------------------------
-/// Unit test for AODV routing table
-struct AodvRtableTest : public TestCase
-{
- AodvRtableTest () : TestCase ("Rtable") {}
- virtual bool DoRun()
- {
- RoutingTable rtable (Seconds (2));
- NS_TEST_EXPECT_MSG_EQ (rtable.GetBadLinkLifetime (), Seconds (2), "trivial");
- rtable.SetBadLinkLifetime (Seconds (1));
- NS_TEST_EXPECT_MSG_EQ (rtable.GetBadLinkLifetime (), Seconds (1), "trivial");
- Ptr<NetDevice> dev;
- Ipv4InterfaceAddress iface;
- RoutingTableEntry rt (/*output device*/dev, /*dst*/Ipv4Address("1.2.3.4"), /*validSeqNo*/true, /*seqNo*/10,
- /*interface*/iface, /*hop*/5, /*next hop*/Ipv4Address("1.1.1.1"), /*lifetime*/Seconds(10));
- NS_TEST_EXPECT_MSG_EQ (rtable.AddRoute (rt), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.AddRoute (rt), false, "trivial");
- RoutingTableEntry rt2 (/*output device*/dev, /*dst*/Ipv4Address("4.3.2.1"), /*validSeqNo*/false, /*seqNo*/0,
- /*interface*/iface, /*hop*/15, /*next hop*/Ipv4Address("1.1.1.1"), /*lifetime*/Seconds(1));
- NS_TEST_EXPECT_MSG_EQ (rtable.AddRoute (rt2), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.LookupRoute (rt2.GetDestination (), rt), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt2.GetDestination (), rt.GetDestination (), "trivial");
- rt.SetHop (20);
- rt.InsertPrecursor (Ipv4Address ("10.0.0.3"));
- NS_TEST_EXPECT_MSG_EQ (rtable.Update (rt), true, "trivial");
- RoutingTableEntry rt3;
- NS_TEST_EXPECT_MSG_EQ (rtable.LookupRoute (Ipv4Address ("10.0.0.1"), rt), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.Update (rt3), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.SetEntryState (Ipv4Address ("10.0.0.1"), INVALID), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.SetEntryState (Ipv4Address ("1.2.3.4"), IN_SEARCH), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.DeleteRoute (Ipv4Address ("5.5.5.5")), false, "trivial");
- RoutingTableEntry rt4 (/*output device*/dev, /*dst*/Ipv4Address ("5.5.5.5"), /*validSeqNo*/false, /*seqNo*/0,
- /*interface*/iface, /*hop*/15, /*next hop*/Ipv4Address ("1.1.1.1"), /*lifetime*/Seconds (-10));
- NS_TEST_EXPECT_MSG_EQ (rtable.AddRoute (rt4), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.SetEntryState (Ipv4Address ("5.5.5.5"), INVALID), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.LookupRoute (Ipv4Address ("5.5.5.5"), rt), false, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.MarkLinkAsUnidirectional (Ipv4Address ("1.2.3.4"), Seconds (2)), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.LookupRoute (Ipv4Address ("1.2.3.4"), rt), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.IsUnidirectional (), true, "trivial");
- rt.SetLifeTime (Seconds (-5));
- NS_TEST_EXPECT_MSG_EQ (rtable.Update (rt), true, "trivial");
- std::map<Ipv4Address, uint32_t> unreachable;
- rtable.GetListOfDestinationWithNextHop (Ipv4Address ("1.1.1.1"), unreachable);
- NS_TEST_EXPECT_MSG_EQ (unreachable.size (), 2, "trivial");
- unreachable.insert (std::make_pair (Ipv4Address ("4.3.2.1"), 3));
- rtable.InvalidateRoutesWithDst (unreachable);
- NS_TEST_EXPECT_MSG_EQ (rtable.LookupRoute (Ipv4Address ("4.3.2.1"), rt), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rt.GetFlag (), INVALID, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.DeleteRoute (Ipv4Address ("1.2.3.4")), true, "trivial");
- NS_TEST_EXPECT_MSG_EQ (rtable.DeleteRoute (Ipv4Address ("1.2.3.4")), false, "trivial");
-
- return GetErrorStatus ();
- }
-};
-//-----------------------------------------------------------------------------
-class AodvTestSuite : public TestSuite
-{
-public:
- AodvTestSuite () : TestSuite ("routing-aodv", UNIT)
- {
- AddTestCase (new NeighborTest);
- AddTestCase (new TypeHeaderTest);
- AddTestCase (new RreqHeaderTest);
- AddTestCase (new RrepHeaderTest);
- AddTestCase (new RrepAckHeaderTest);
- AddTestCase (new RerrHeaderTest);
- AddTestCase (new QueueEntryTest);
- AddTestCase (new AodvRqueueTest);
- AddTestCase (new AodvRtableEntryTest);
- AddTestCase (new AodvRtableTest);
- }
-} g_aodvTestSuite;
-
-}}
--- a/src/routing/manet/aodv/aodv.h Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,86 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Based on
- * NS-2 AODV model developed by the CMU/MONARCH group and optimized and
- * tuned by Samir Das and Mahesh Marina, University of Cincinnati;
- *
- * AODV-UU implementation by Erik Nordström of Uppsala University
- * http://core.it.uu.se/core/index.php/AODV-UU
- *
- * Authors: Elena Buchatskaia <borovkovaes@iitp.ru>
- * Pavel Boyko <boyko@iitp.ru>
- */
-
-#ifndef AODV_H
-#define AODV_H
-
-/**
- * \ingroup routing
- * \defgroup aodv AODV
- *
- * This model implements the base specification of the Ad hoc on demand distance vector (AODV)
- * protocol. Implementation is based on RFC3561.
- *
- * Class aodv::RoutingProtocol implements all functionality of service packet exchange and inherits Ipv4RoutingProtocol.
- * Base class defines two virtual functions for packet routing and forwarding. The first one,
- * RouteOutput(), is used for locally originated packets, and the second one, RouteInput(), is used for forwarding
- * and/or delivering received packets.
- *
- * Protocol operation depends on the many adjustable parameters. Parameters for this functionality are attributes of
- * aodv::RoutingProtocol. We support parameters, with their default values, from RFC and parameters that enable/disable
- * protocol features, such as broadcasting HELLO messages, broadcasting data packets and so on.
- *
- * AODV discovers routes on demand. Therefore, our AODV model buffer all packets, while a route request packet (RREQ)
- * is disseminated. We implement a packet queue in aodv-rqueue.cc. Smart pointer to packet, Ipv4RoutingProtocol::ErrorCallback,
- * Ipv4RoutingProtocol::UnicastForwardCallback and IP header are stored in this queue. The packet queue implements garbage collection of old
- * packets and a queue size limit.
- *
- * Routing table implementation support garbage collection of old entries and state machine, defined in standard.
- * It implements as a STL map container. The key is a destination IP address.
- *
- * Some moments of protocol operation aren't described in RFC. This moments generally concern cooperation of different OSI model layers.
- * We use following heuristics:
- *
- * 1) This AODV implementation can detect the presence of unidirectional links and avoid them if necessary.
- * If the node we received a RREQ for is a neighbor we are probably facing a unidirectional link...
- * This heuristic is taken from AODV-UU implementation and can be disabled.
- *
- * 2) Protocol operation strongly depends on broken link detection mechanism. We implements two such heuristics.
- * First, this implementation support HELLO messages. However HELLO messages are not a good way to do neighbor sensing
- * in a wireless environment (at least not over 802.11). Therefore, you may experience bad performance when running over wireless.
- * There are several reasons for this:
- * -# HELLO messages are broadcasted. In 802.11, broadcasting is done at a lower bit rate than unicasting,
- * thus HELLO messages travel further than data.
- * -# HELLO messages are small, thus less prone to bit errors than data transmissions.
- * -# Broadcast transmissions are not guaranteed to be bidirectional, unlike unicast transmissions.
- * Second, we use layer 2 feedback when possible. Link considered to be broken, if frame transmission results in a transmission
- * failure for all retries. This mechanism meant for active links and work much more faster, than first method.
- * Layer 2 feedback implementation relies on TxErrHeader trace source, currently it is supported in AdhocWifiMac only.
- *
- * 3) Duplicate packet detection. We use special class DuplicatePacketDetection for this purpose.
- *
- * Following optional protocol optimizations aren't implemented:
- * - Expanding ring search.
- * - Local link repair.
- * - RREP, RREQ and HELLO message extensions.
- * This techniques require direct access to IP header, which contradict assertion from AODV RFC that AODV works over UDP. Our model use UDP
- * for simplicity, but this disable us to implement protocol optimizations. We don't use low layer raw socket, because they are not portable.
- *
- */
-
-#endif /* AODV_H */
Binary file src/routing/manet/aodv/test/aodv-chain-regression-test-0-0.pcap has changed
Binary file src/routing/manet/aodv/test/aodv-chain-regression-test-1-0.pcap has changed
Binary file src/routing/manet/aodv/test/aodv-chain-regression-test-2-0.pcap has changed
Binary file src/routing/manet/aodv/test/aodv-chain-regression-test-3-0.pcap has changed
Binary file src/routing/manet/aodv/test/aodv-chain-regression-test-4-0.pcap has changed
--- a/src/routing/manet/aodv/test/aodv-regression.cc Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,171 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Authors: Pavel Boyko <boyko@iitp.ru>
- */
-
-#include "aodv-regression.h"
-
-#include "ns3/mesh-helper.h"
-#include "ns3/simulator.h"
-#include "ns3/random-variable.h"
-#include "ns3/mobility-helper.h"
-#include "ns3/double.h"
-#include "ns3/uinteger.h"
-#include "ns3/string.h"
-#include "ns3/boolean.h"
-#include "ns3/yans-wifi-helper.h"
-#include "ns3/internet-stack-helper.h"
-#include "ns3/ipv4-address-helper.h"
-#include "ns3/abort.h"
-#include "ns3/udp-echo-helper.h"
-#include "ns3/mobility-model.h"
-#include "ns3/pcap-file.h"
-#include "ns3/aodv-helper.h"
-#include "ns3/v4ping-helper.h"
-#include "ns3/nqos-wifi-mac-helper.h"
-#include <sstream>
-
-/// Set to true to rewrite reference traces, leave false to run regression tests
-const bool WRITE_VECTORS = false;
-
-namespace ns3 {
-namespace aodv {
-//-----------------------------------------------------------------------------
-// Test suite
-//-----------------------------------------------------------------------------
-class AodvRegressionTestSuite : public TestSuite
-{
-public:
- AodvRegressionTestSuite () : TestSuite ("routing-aodv-regression", SYSTEM)
- {
- AddTestCase (new ChainRegressionTest);
- }
-} g_aodvRegressionTestSuite;
-
-
-//-----------------------------------------------------------------------------
-// ChainRegressionTest
-//-----------------------------------------------------------------------------
-/// Unique PCAP files prefix for this test
-const char * const ChainRegressionTest::PREFIX = "aodv-chain-regression-test";
-
-ChainRegressionTest::ChainRegressionTest () : TestCase ("AODV chain regression test"),
- m_nodes (0),
- m_time (Seconds (10)),
- m_size (5),
- m_step (120)
-{
-}
-
-ChainRegressionTest::~ChainRegressionTest ()
-{
- delete m_nodes;
-}
-
-bool
-ChainRegressionTest::DoRun ()
-{
- SeedManager::SetSeed(12345);
- CreateNodes ();
- CreateDevices ();
-
- // At m_time / 3 move central node away and see what will happen
- Ptr<Node> node = m_nodes->Get (m_size / 2);
- Ptr<MobilityModel> mob = node->GetObject<MobilityModel> ();
- Simulator::Schedule (m_time / Scalar(3.0), &MobilityModel::SetPosition, mob, Vector (1e5, 1e5, 1e5));
-
- Simulator::Stop (m_time);
- Simulator::Run ();
- Simulator::Destroy ();
-
- if (!WRITE_VECTORS) CheckResults ();
-
- delete m_nodes, m_nodes = 0;
- return GetErrorStatus ();
-}
-
-void
-ChainRegressionTest::CreateNodes ()
-{
- m_nodes = new NodeContainer;
- m_nodes->Create (m_size);
- MobilityHelper mobility;
- mobility.SetPositionAllocator ("ns3::GridPositionAllocator",
- "MinX", DoubleValue (0.0),
- "MinY", DoubleValue (0.0),
- "DeltaX", DoubleValue (m_step),
- "DeltaY", DoubleValue (0),
- "GridWidth", UintegerValue (m_size),
- "LayoutType", StringValue ("RowFirst"));
- mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
- mobility.Install (*m_nodes);
-}
-
-void
-ChainRegressionTest::CreateDevices ()
-{
- // 1. Setup WiFi
- NqosWifiMacHelper wifiMac = NqosWifiMacHelper::Default ();
- wifiMac.SetType ("ns3::AdhocWifiMac");
- YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default ();
- YansWifiChannelHelper wifiChannel = YansWifiChannelHelper::Default ();
- wifiPhy.SetChannel (wifiChannel.Create ());
- WifiHelper wifi = WifiHelper::Default ();
- wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager", "DataMode", StringValue ("wifia-6mbs"), "RtsCtsThreshold", StringValue ("2200"));
- NetDeviceContainer devices = wifi.Install (wifiPhy, wifiMac, *m_nodes);
-
- // 2. Setup TCP/IP & AODV
- AodvHelper aodv; // Use default parameters here
- InternetStackHelper internetStack;
- internetStack.SetRoutingHelper (aodv);
- internetStack.Install (*m_nodes);
- Ipv4AddressHelper address;
- address.SetBase ("10.1.1.0", "255.255.255.0");
- Ipv4InterfaceContainer interfaces = address.Assign (devices);
-
- // 3. Setup ping
- V4PingHelper ping (interfaces.GetAddress (m_size - 1));
- ping.SetAttribute ("Verbose", BooleanValue (false)); // don't need verbose ping in regression test
- ApplicationContainer p = ping.Install (m_nodes->Get (0));
- p.Start (Seconds (0));
- p.Stop (m_time);
-
- // 4. write PCAP
- std::string prefix = (WRITE_VECTORS ? NS_TEST_SOURCEDIR : GetTempDir ()) + PREFIX;
- wifiPhy.EnablePcapAll (prefix);
-}
-
-void
-ChainRegressionTest::CheckResults ()
-{
- for (uint32_t i = 0; i < m_size; ++i)
- {
- std::ostringstream os1, os2;
- // File naming conventions are hard-coded here.
- os1 << NS_TEST_SOURCEDIR << PREFIX << "-" << i << "-0.pcap";
- os2 << GetTempDir () << PREFIX << "-" << i << "-0.pcap";
-
- uint32_t sec(0), usec(0);
- bool diff = PcapFile::Diff (os1.str(), os2.str(), sec, usec);
- NS_TEST_EXPECT_MSG_EQ (diff, false, "PCAP traces " << os1.str() << " and " << os2.str()
- << " differ starting from " << sec << " s " << usec << " us");
- }
-}
-
-}
-}
--- a/src/routing/manet/aodv/test/aodv-regression.h Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,184 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2009 IITP RAS
- *
- * 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
- *
- * Authors: Pavel Boyko <boyko@iitp.ru>
- */
-
-#ifndef AODVREGRESSION_H_
-#define AODVREGRESSION_H_
-
-#include "ns3/test.h"
-#include "ns3/nstime.h"
-#include "ns3/node-container.h"
-
-namespace ns3 {
-namespace aodv {
-
-/**
- * \ingroup aodv
- *
- * \brief AODV chain regression test
- *
- * This script creates 1-dimensional grid topology and then ping last node from the first one:
- *
- * [10.1.1.1] <-- step --> [10.1.1.2] <-- step --> [10.1.1.3] <-- step --> [10.1.1.4] <-- step --> [10.1.1.5]
- *
- * Each node can hear only his right and his left neighbor, if they exist. When one third of total time expired,
- * central node moves away. After this, node 3 doesn't hear any packets from other nodes and nobody hears his packets.
- * We want to demonstrate in this script
- * 1) route establishing
- * 2) broken link detection both from layer 2 information and hello messages.
- *
- * \verbatim
- Expected packets time diagram.
- 1 2 3 4 5
- <------|------>| | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, U=1, hop=0, ID=1, org_seqno=1) src = 10.1.1.1
- |<------|------>| | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, U=1, hop=1, ID=1, org_seqno=1) src = 10.1.1.2
- | |<------|------>| | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, U=1, hop=2, ID=1, org_seqno=1) src = 10.1.1.3
- | | |<------|------>| RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, U=1, hop=3, ID=1, org_seqno=1) src = 10.1.1.4
- | | | |<------|------> ARP request. Who has 10.1.1.4? Tell 10.1.1.5
- | | | |======>| ARP reply
- | | | |<======| RREP (orig 10.1.1.1, dst 10.1.1.5, hop=0, dst_seqno=0) src=10.1.1.5
- | | |<------|------>| ARP request. Who has 10.1.1.3? Tell 10.1.1.4
- | | |======>| | ARP reply
- | | |<======| | RREP (orig 10.1.1.1, dst 10.1.1.5, hop=1, dst_seqno=0) src=10.1.1.4
- | |<------|------>| | ARP request. Who has 10.1.1.2? Tell 10.1.1.3
- | |======>| | | ARP reply
- | |<======| | | RREP (orig 10.1.1.1, dst 10.1.1.5, hop=2, dst_seqno=0) src=10.1.1.3
- |<------|------>| | | ARP request. Who has 10.1.1.1? Tell 10.1.1.2
- |======>| | | | ARP reply
- |<======| | | | RREP (orig 10.1.1.1, dst 10.1.1.5, hop=3, dst_seqno=0) src=10.1.1.2
- <-------|------>| | | | ARP request. Who has 10.1.1.2? Tell 10.1.1.1
- |<======| | | |
- |======>| | | | ICMP (ping) request 0 from 10.1.1.1 to 10.1.1.5; src=10.1.1.1 next_hop=10.1.1.2
- |<------|------>| | | ARP request. Who has 10.1.1.3? Tell 10.1.1.2
- | |<======| | | ARP reply
- | |======>| | | ICMP (ping) request 0 from 10.1.1.1 to 10.1.1.5; src=10.1.1.2 next_hop=10.1.1.3
- | |<------|------>| | ARP request. Who has 10.1.1.4? Tell 10.1.1.3
- | | |<======| | ARP reply
- | | |======>| | ICMP (ping) request 0 from 10.1.1.1 to 10.1.1.5; src=10.1.1.3 next_hop=10.1.1.4
- | | |<------|------>| ARP request. Who has 10.1.1.5? Tell 10.1.1.4
- | | | |<======| ARP reply
- | | | |======>| ICMP (ping) request 0; src=10.1.1.4 next_hop=10.1.1.5
- | | | |<======| ICMP (ping) reply 0; src=10.1.1.5 next_hop=10.1.1.4
- | | |<======| | ICMP (ping) reply 0; src=10.1.1.4 next_hop=10.1.1.3
- | |<======| | | ICMP (ping) reply 0; src=10.1.1.3 next_hop=10.1.1.2
- |<======| | | | ICMP (ping) reply 0; src=10.1.1.2 next_hop=10.1.1.1
- | | | |<------|------> Hello
- |<------|------>| | | Hello
- <------|------>| | | | Hello
- | |<------|------>| | Hello
- |======>| | | | ICMP (ping) request 1; src=10.1.1.1 next_hop=10.1.1.2
- | | |<------|------>| Hello
- | |======>| | | ICMP (ping) request 1; src=10.1.1.2 next_hop=10.1.1.3
- | | |======>| | ICMP (ping) request 1; src=10.1.1.3 next_hop=10.1.1.4
- | | | |======>| ICMP (ping) request 1; src=10.1.1.4 next_hop=10.1.1.5
- | | | |<======| ICMP (ping) reply 1; src=10.1.1.5 next_hop=10.1.1.4
- | | |<======| | ICMP (ping) reply 1; src=10.1.1.4 next_hop=10.1.1.3
- | |<======| | | ICMP (ping) reply 11; src=10.1.1.3 next_hop=10.1.1.2
- |<======| | | | ICMP (ping) reply 1; src=10.1.1.2 next_hop=10.1.1.1
- | | | |<------|------> Hello
- |<------|------>| | | Hello
- <------|------>| | | | Hello
- | | |<------|------>| Hello
- | |<------|------>| | Hello
- |======>| | | | ICMP (ping) request 2; src=10.1.1.1 next_hop=10.1.1.2
- | |======>| | | ICMP (ping) request 2; src=10.1.1.2 next_hop=10.1.1.3
- | | |======>| | ICMP (ping) request 2; src=10.1.1.3 next_hop=10.1.1.4
- | | | |======>| ICMP (ping) request 2; src=10.1.1.4 next_hop=10.1.1.5
- | | | |<======| ICMP (ping) reply 2; src=10.1.1.5 next_hop=10.1.1.4
- | | |<======| | ICMP (ping) reply 2; src=10.1.1.4 next_hop=10.1.1.3
- | |<======| | | ICMP (ping) reply 2; src=10.1.1.3 next_hop=10.1.1.2
- |<======| | | | ICMP (ping) reply 2; src=10.1.1.2 next_hop=10.1.1.1
- | | | |<------|------> Hello
- <------|------>| | | | Hello
- | |<------|------>| | Hello
- |<------|------>| | | Hello
- | | |<------|------>| Hello
- |======>| | | | ICMP (ping) request 3; src=10.1.1.1 next_hop=10.1.1.2
- | |======>| | | ICMP (ping) request 3; src=10.1.1.2 next_hop=10.1.1.3
- | | |======>| | ICMP (ping) request 3; src=10.1.1.3 next_hop=10.1.1.4
- | | | |======>| ICMP (ping) request 3; src=10.1.1.4 next_hop=10.1.1.5
- | | | |<======| ICMP (ping) reply 3; src=10.1.1.5 next_hop=10.1.1.4
- | | |<======| | ICMP (ping) reply 3; src=10.1.1.4 next_hop=10.1.1.3
- | |<======| | | ICMP (ping) reply 3; src=10.1.1.3 next_hop=10.1.1.2
- |<======| | | | ICMP (ping) reply 3; src=10.1.1.2 next_hop=10.1.1.1
- | | | |<------|------> Hello
- <------|------>| | | | Hello
- |<------|--> | | | Hello |
- | | <--|--> | | Hello |Node 3 move away => nobody hear his packets and node 3 doesn't hear anything !
- | | | <--|------>| Hello |
- |======>| | | | ICMP (ping) request 4; src=10.1.1.1 next_hop=10.1.1.2
- | |==> | | | ICMP (ping) request 4; src=10.1.1.2 next_hop=10.1.1.3. 7 retries.
- |<======| | | | RERR (unreachable dst 10.1.1.3 & 10.1.1.5) src=10.1.1.2
- | | | |<------|------> Hello
- <------|------>| | | | Hello
- |<------|--> | | | Hello
- | | <--|--> | | Hello
- | | | <--|------>| Hello
- <------|------>| | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=0, ID=2, org_seqno=2) src = 10.1.1.1
- |<------|--> | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=1, ID=2, org_seqno=1) src = 10.1.1.2
- | | | |<------|------> Hello
- | | | <--|------>| Hello
- | | <--|--> | | Hello
- <------|------>| | | | Hello
- <------|------>| | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=0, ID=3, org_seqno=3) src = 10.1.1.1
- |<------|--> | | | Hello
- |<------|--> | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=1, ID=3, org_seqno=3) src = 10.1.1.2
- | | | |======>| RERR (unreachable dst 10.1.1.1 & 10.1.1.3) src=10.1.1.4
- | | | |<------|------> Hello
- | | | <--|------>| Hello
- | | <--|--> | | Hello
- |<------|--> | | | Hello
- <------|------>| | | | Hello
- <------|------>| | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=0, ID=4, org_seqno=4) src = 10.1.1.1
- |<------|--> | | | RREQ (orig 10.1.1.1, dst 10.1.1.5, G=1, hop=1, ID=4, org_seqno=4) src = 10.1.1.2
-
-..................................................................
- * \endverbatim
- */
-class ChainRegressionTest : public TestCase
-{
-public:
- ChainRegressionTest ();
- ~ChainRegressionTest ();
-private:
- /// Unique PCAP files prefix for this test
- static const char * const PREFIX;
- /// XXX It is important to have pointers here
- NodeContainer * m_nodes;
-
- /// Total simulation time
- const Time m_time;
- /// Chain size
- const uint32_t m_size;
- /// Chain step, meters
- const double m_step;
-
- /// Create test topology
- void CreateNodes ();
- /// Create devices, install TCP/IP stack and applications
- void CreateDevices ();
- /// Compare traces with reference ones
- void CheckResults ();
- /// Go
- bool DoRun ();
-};
-
-}
-}
-#endif /* AODVREGRESSION_H_ */
--- a/src/routing/manet/aodv/waf Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-exec "`dirname "$0"`"/../../../../waf "$@"
--- a/src/routing/manet/aodv/wscript Wed Nov 18 12:58:00 2009 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,29 +0,0 @@
-## -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
-
-def build(bld):
- module = bld.create_ns3_module('aodv', ['internet-stack', 'contrib'])
- module.includes = '.'
- module.source = [
- 'aodv-id-cache.cc',
- 'aodv-dpd.cc',
- 'aodv-rtable.cc',
- 'aodv-rqueue.cc',
- 'aodv-packet.cc',
- 'aodv-neighbor.cc',
- 'aodv-routing-protocol.cc',
- 'aodv-test-suite.cc',
- 'test/aodv-regression.cc',
- ]
-
- headers = bld.new_task_gen('ns3header')
- headers.module = 'aodv'
- headers.source = [
- 'aodv-id-cache.h',
- 'aodv-dpd.h',
- 'aodv-rtable.h',
- 'aodv-rqueue.h',
- 'aodv-packet.h',
- 'aodv-neighbor.h',
- 'aodv-routing-protocol.h',
- ]
-
--- a/src/wscript Wed Nov 18 12:58:00 2009 +0300
+++ b/src/wscript Wed Nov 18 13:01:17 2009 +0300
@@ -32,7 +32,7 @@
'routing/global-routing',
'routing/static-routing',
'routing/list-routing',
- 'routing/manet/aodv',
+ 'routing/aodv',
'mobility',
'devices/wifi',
'helper',