Alexander Afanasyev | c74a602 | 2011-08-15 20:01:35 -0700 | [diff] [blame] | 1 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */ |
Alexander Afanasyev | ab1d560 | 2011-08-17 19:17:18 -0700 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (c) 2011 University of California, Los Angeles |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation; |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 17 | * |
| 18 | * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu> |
Ilya Moiseenko | 172763c | 2011-10-28 13:21:53 -0700 | [diff] [blame] | 19 | * Ilya Moiseenko <iliamo@cs.ucla.edu> |
Alexander Afanasyev | ab1d560 | 2011-08-17 19:17:18 -0700 | [diff] [blame] | 20 | */ |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 21 | |
Alexander Afanasyev | 0c39537 | 2014-12-20 15:54:02 -0800 | [diff] [blame] | 22 | #include "ndn-l3-protocol.hpp" |
Alexander Afanasyev | 45b92d4 | 2011-08-14 23:11:38 -0700 | [diff] [blame] | 23 | |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 24 | #include "ns3/packet.h" |
Alexander Afanasyev | 45b92d4 | 2011-08-14 23:11:38 -0700 | [diff] [blame] | 25 | #include "ns3/node.h" |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 26 | #include "ns3/log.h" |
| 27 | #include "ns3/callback.h" |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 28 | #include "ns3/uinteger.h" |
| 29 | #include "ns3/trace-source-accessor.h" |
| 30 | #include "ns3/object-vector.h" |
Alexander Afanasyev | cbe92ae | 2011-12-16 13:06:18 -0800 | [diff] [blame] | 31 | #include "ns3/pointer.h" |
Alexander Afanasyev | 4975f73 | 2011-12-20 17:52:19 -0800 | [diff] [blame] | 32 | #include "ns3/simulator.h" |
Alexander Afanasyev | ff8c5d6 | 2012-04-25 15:14:51 -0700 | [diff] [blame] | 33 | #include "ns3/random-variable.h" |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 34 | |
Alexander Afanasyev | 0c39537 | 2014-12-20 15:54:02 -0800 | [diff] [blame] | 35 | #include "ns3/ndn-pit.hpp" |
Alexander Afanasyev | c74a602 | 2011-08-15 20:01:35 -0700 | [diff] [blame] | 36 | |
Alexander Afanasyev | 0c39537 | 2014-12-20 15:54:02 -0800 | [diff] [blame] | 37 | #include "ns3/ndn-face.hpp" |
| 38 | #include "ns3/ndn-forwarding-strategy.hpp" |
Alexander Afanasyev | e3d126f | 2012-07-16 17:07:31 -0700 | [diff] [blame] | 39 | |
Alexander Afanasyev | 0c39537 | 2014-12-20 15:54:02 -0800 | [diff] [blame] | 40 | #include "ndn-net-device-face.hpp" |
Alexander Afanasyev | 52e9aa9 | 2011-11-15 20:23:20 -0800 | [diff] [blame] | 41 | |
Alexander Afanasyev | 56f79ea | 2011-08-17 23:54:27 -0700 | [diff] [blame] | 42 | #include <boost/foreach.hpp> |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 43 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 44 | NS_LOG_COMPONENT_DEFINE("ndn.L3Protocol"); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 45 | |
| 46 | namespace ns3 { |
Alexander Afanasyev | 2b4c947 | 2012-08-09 15:00:38 -0700 | [diff] [blame] | 47 | namespace ndn { |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 48 | |
Alexander Afanasyev | 2b4c947 | 2012-08-09 15:00:38 -0700 | [diff] [blame] | 49 | const uint16_t L3Protocol::ETHERNET_FRAME_TYPE = 0x7777; |
Alexander Afanasyev | 016a5d8 | 2013-07-15 10:41:29 -0700 | [diff] [blame] | 50 | const uint16_t L3Protocol::IP_STACK_PORT = 9695; |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 51 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 52 | NS_OBJECT_ENSURE_REGISTERED(L3Protocol); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 53 | |
Alexander Afanasyev | 06dba7c | 2013-02-21 11:36:26 -0800 | [diff] [blame] | 54 | TypeId |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 55 | L3Protocol::GetTypeId(void) |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 56 | { |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 57 | static TypeId tid = |
| 58 | TypeId("ns3::ndn::L3Protocol") |
| 59 | .SetGroupName("ndn") |
| 60 | .SetParent<Object>() |
| 61 | .AddConstructor<L3Protocol>() |
| 62 | .AddAttribute("FaceList", "List of faces associated with ndn stack", ObjectVectorValue(), |
| 63 | MakeObjectVectorAccessor(&L3Protocol::m_faces), |
| 64 | MakeObjectVectorChecker<Face>()); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 65 | return tid; |
| 66 | } |
| 67 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 68 | L3Protocol::L3Protocol() |
| 69 | : m_faceCounter(0) |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 70 | { |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 71 | NS_LOG_FUNCTION(this); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 72 | } |
| 73 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 74 | L3Protocol::~L3Protocol() |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 75 | { |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 76 | NS_LOG_FUNCTION(this); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 77 | } |
| 78 | |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 79 | /* |
| 80 | * This method is called by AddAgregate and completes the aggregation |
Alexander Afanasyev | 4aac557 | 2012-08-09 10:49:55 -0700 | [diff] [blame] | 81 | * by setting the node in the ndn stack |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 82 | */ |
| 83 | void |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 84 | L3Protocol::NotifyNewAggregate() |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 85 | { |
Alexander Afanasyev | 3a4a0b3 | 2012-06-28 14:14:22 -0700 | [diff] [blame] | 86 | // not really efficient, but this will work only once |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 87 | if (m_node == 0) { |
| 88 | m_node = GetObject<Node>(); |
| 89 | if (m_node != 0) { |
| 90 | NS_ASSERT_MSG(m_forwardingStrategy != 0, |
| 91 | "Forwarding strategy should be aggregated before L3Protocol"); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 92 | } |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 93 | } |
| 94 | if (m_forwardingStrategy == 0) { |
| 95 | m_forwardingStrategy = GetObject<ForwardingStrategy>(); |
| 96 | } |
Alexander Afanasyev | d9fecdd | 2012-06-08 16:22:24 -0700 | [diff] [blame] | 97 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 98 | Object::NotifyNewAggregate(); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 99 | } |
| 100 | |
Alexander Afanasyev | 06dba7c | 2013-02-21 11:36:26 -0800 | [diff] [blame] | 101 | void |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 102 | L3Protocol::DoDispose(void) |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 103 | { |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 104 | NS_LOG_FUNCTION(this); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 105 | |
Alexander Afanasyev | a4e7428 | 2013-07-11 15:23:20 -0700 | [diff] [blame] | 106 | // for (FaceList::iterator i = m_faces.begin (); i != m_faces.end (); ++i) |
| 107 | // { |
| 108 | // *i = 0; |
| 109 | // } |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 110 | m_faces.clear(); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 111 | m_node = 0; |
Alexander Afanasyev | d02a5d6 | 2011-11-21 11:01:51 -0800 | [diff] [blame] | 112 | |
| 113 | // Force delete on objects |
Alexander Afanasyev | 1825285 | 2011-11-21 13:35:31 -0800 | [diff] [blame] | 114 | m_forwardingStrategy = 0; // there is a reference to PIT stored in here |
Alexander Afanasyev | 1825285 | 2011-11-21 13:35:31 -0800 | [diff] [blame] | 115 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 116 | Object::DoDispose(); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 117 | } |
| 118 | |
Alexander Afanasyev | 06dba7c | 2013-02-21 11:36:26 -0800 | [diff] [blame] | 119 | uint32_t |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 120 | L3Protocol::AddFace(const Ptr<Face>& face) |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 121 | { |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 122 | NS_LOG_FUNCTION(this << &face); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 123 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 124 | face->SetId( |
| 125 | m_faceCounter); // sets a unique ID of the face. This ID serves only informational purposes |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 126 | |
Alexander Afanasyev | a67e28c | 2011-08-31 21:16:25 -0700 | [diff] [blame] | 127 | // ask face to register in lower-layer stack |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 128 | face->RegisterProtocolHandlers(MakeCallback(&ForwardingStrategy::OnInterest, |
| 129 | m_forwardingStrategy), |
| 130 | MakeCallback(&ForwardingStrategy::OnData, m_forwardingStrategy)); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 131 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 132 | m_faces.push_back(face); |
Alexander Afanasyev | 09c7deb | 2011-11-23 14:50:10 -0800 | [diff] [blame] | 133 | m_faceCounter++; |
Alexander Afanasyev | f5c0774 | 2012-10-31 13:13:05 -0700 | [diff] [blame] | 134 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 135 | m_forwardingStrategy->AddFace(face); // notify that face is added |
| 136 | return face->GetId(); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 137 | } |
| 138 | |
Alexander Afanasyev | c5a23e2 | 2011-09-07 00:37:36 -0700 | [diff] [blame] | 139 | void |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 140 | L3Protocol::RemoveFace(Ptr<Face> face) |
Alexander Afanasyev | c5a23e2 | 2011-09-07 00:37:36 -0700 | [diff] [blame] | 141 | { |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 142 | NS_LOG_FUNCTION(this << boost::cref(*face)); |
Alexander Afanasyev | c5a23e2 | 2011-09-07 00:37:36 -0700 | [diff] [blame] | 143 | // ask face to register in lower-layer stack |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 144 | face->UnRegisterProtocolHandlers(); |
| 145 | Ptr<Pit> pit = GetObject<Pit>(); |
Alexander Afanasyev | 09c7deb | 2011-11-23 14:50:10 -0800 | [diff] [blame] | 146 | |
| 147 | // just to be on a safe side. Do the process in two steps |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 148 | std::list<Ptr<pit::Entry>> entriesToRemoves; |
| 149 | for (Ptr<pit::Entry> pitEntry = pit->Begin(); pitEntry != 0; pitEntry = pit->Next(pitEntry)) { |
| 150 | pitEntry->RemoveAllReferencesToFace(face); |
Alexander Afanasyev | 06dba7c | 2013-02-21 11:36:26 -0800 | [diff] [blame] | 151 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 152 | // If this face is the only for the associated FIB entry, then FIB entry will be removed soon. |
| 153 | // Thus, we have to remove the whole PIT entry |
| 154 | if (pitEntry->GetFibEntry()->m_faces.size() == 1 |
| 155 | && pitEntry->GetFibEntry()->m_faces.begin()->GetFace() == face) { |
| 156 | entriesToRemoves.push_back(pitEntry); |
Alexander Afanasyev | 30f60e3 | 2012-07-10 14:21:16 -0700 | [diff] [blame] | 157 | } |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 158 | } |
| 159 | BOOST_FOREACH (Ptr<pit::Entry> removedEntry, entriesToRemoves) { |
| 160 | pit->MarkErased(removedEntry); |
| 161 | } |
Alexander Afanasyev | 09c7deb | 2011-11-23 14:50:10 -0800 | [diff] [blame] | 162 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 163 | FaceList::iterator face_it = find(m_faces.begin(), m_faces.end(), face); |
| 164 | if (face_it == m_faces.end()) { |
| 165 | return; |
| 166 | } |
| 167 | m_faces.erase(face_it); |
Alexander Afanasyev | f5c0774 | 2012-10-31 13:13:05 -0700 | [diff] [blame] | 168 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 169 | GetObject<Fib>()->RemoveFromAll(face); |
| 170 | m_forwardingStrategy->RemoveFace(face); // notify that face is removed |
Alexander Afanasyev | c5a23e2 | 2011-09-07 00:37:36 -0700 | [diff] [blame] | 171 | } |
| 172 | |
Alexander Afanasyev | 2b4c947 | 2012-08-09 15:00:38 -0700 | [diff] [blame] | 173 | Ptr<Face> |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 174 | L3Protocol::GetFace(uint32_t index) const |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 175 | { |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 176 | NS_ASSERT(0 <= index && index < m_faces.size()); |
Alexander Afanasyev | aebf5cf | 2012-08-28 17:32:17 -0700 | [diff] [blame] | 177 | return m_faces[index]; |
| 178 | } |
| 179 | |
| 180 | Ptr<Face> |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 181 | L3Protocol::GetFaceById(uint32_t index) const |
Alexander Afanasyev | aebf5cf | 2012-08-28 17:32:17 -0700 | [diff] [blame] | 182 | { |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 183 | BOOST_FOREACH (const Ptr<Face>& face, m_faces) // this function is not supposed to be called |
| 184 | // often, so linear search is fine |
| 185 | { |
| 186 | if (face->GetId() == index) |
| 187 | return face; |
| 188 | } |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 189 | return 0; |
| 190 | } |
| 191 | |
Alexander Afanasyev | 2b4c947 | 2012-08-09 15:00:38 -0700 | [diff] [blame] | 192 | Ptr<Face> |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 193 | L3Protocol::GetFaceByNetDevice(Ptr<NetDevice> netDevice) const |
Alexander Afanasyev | 52e9aa9 | 2011-11-15 20:23:20 -0800 | [diff] [blame] | 194 | { |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 195 | BOOST_FOREACH (const Ptr<Face>& face, m_faces) // this function is not supposed to be called |
| 196 | // often, so linear search is fine |
| 197 | { |
| 198 | Ptr<NetDeviceFace> netDeviceFace = DynamicCast<NetDeviceFace>(face); |
| 199 | if (netDeviceFace == 0) |
| 200 | continue; |
Alexander Afanasyev | 52e9aa9 | 2011-11-15 20:23:20 -0800 | [diff] [blame] | 201 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 202 | if (netDeviceFace->GetNetDevice() == netDevice) |
| 203 | return face; |
| 204 | } |
Alexander Afanasyev | 52e9aa9 | 2011-11-15 20:23:20 -0800 | [diff] [blame] | 205 | return 0; |
| 206 | } |
| 207 | |
Alexander Afanasyev | 06dba7c | 2013-02-21 11:36:26 -0800 | [diff] [blame] | 208 | uint32_t |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 209 | L3Protocol::GetNFaces(void) const |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 210 | { |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 211 | return m_faces.size(); |
Alexander Afanasyev | 08d984e | 2011-08-13 19:20:22 -0700 | [diff] [blame] | 212 | } |
| 213 | |
Alexander Afanasyev | be55cf6 | 2014-12-20 17:51:09 -0800 | [diff] [blame] | 214 | } // namespace ndn |
| 215 | } // namespace ns3 |