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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2013 University of California, Los Angeles
*
* 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
*
* Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
* : Saran Tarnoi <saran.tarnoi@gmail.com>
*/
#include "ndn-link-control-helper.h"
#include "ns3/assert.h"
#include "ns3/names.h"
#include "ns3/point-to-point-net-device.h"
#include "ns3/point-to-point-channel.h"
#include "ns3/channel.h"
#include "ns3/log.h"
#include "ns3/ndn-l3-protocol.h"
#include "ns3/ndn-net-device-face.h"
NS_LOG_COMPONENT_DEFINE ("ndn.LinkControlHelper");
namespace ns3 {
namespace ndn {
void
LinkControlHelper::FailLink (Ptr<Node> node1, Ptr<Node> node2)
{
NS_LOG_FUNCTION (node1 << node2);
NS_ASSERT (node1 != 0);
NS_ASSERT (node2 != 0);
Ptr<ndn::L3Protocol> ndn1 = node1->GetObject<ndn::L3Protocol> ();
Ptr<ndn::L3Protocol> ndn2 = node2->GetObject<ndn::L3Protocol> ();
NS_ASSERT (ndn1 != 0);
NS_ASSERT (ndn2 != 0);
// iterate over all faces to find the right one
for (uint32_t faceId = 0; faceId < ndn1->GetNFaces (); faceId++)
{
Ptr<ndn::NetDeviceFace> ndFace = ndn1->GetFace (faceId)->GetObject<ndn::NetDeviceFace> ();
if (ndFace == 0) continue;
Ptr<PointToPointNetDevice> nd1 = ndFace->GetNetDevice ()->GetObject<PointToPointNetDevice> ();
if (nd1 == 0) continue;
Ptr<Channel> channel = nd1->GetChannel ();
if (channel == 0) continue;
Ptr<PointToPointChannel> ppChannel = DynamicCast<PointToPointChannel> (channel);
Ptr<NetDevice> nd2 = ppChannel->GetDevice (0);
if (nd2->GetNode () == node1)
nd2 = ppChannel->GetDevice (1);
if (nd2->GetNode () == node2)
{
Ptr<ndn::Face> face1 = ndn1->GetFaceByNetDevice (nd1);
Ptr<ndn::Face> face2 = ndn2->GetFaceByNetDevice (nd2);
face1->SetUp (false);
face2->SetUp (false);
break;
}
}
}
void
LinkControlHelper::FailLinkByName (const std::string &node1, const std::string &node2)
{
FailLink (Names::Find<Node> (node1), Names::Find<Node> (node2));
}
void
LinkControlHelper::UpLink (Ptr<Node> node1, Ptr<Node> node2)
{
NS_LOG_FUNCTION (node1 << node2);
NS_ASSERT (node1 != 0);
NS_ASSERT (node2 != 0);
Ptr<ndn::L3Protocol> ndn1 = node1->GetObject<ndn::L3Protocol> ();
Ptr<ndn::L3Protocol> ndn2 = node2->GetObject<ndn::L3Protocol> ();
NS_ASSERT (ndn1 != 0);
NS_ASSERT (ndn2 != 0);
// iterate over all faces to find the right one
for (uint32_t faceId = 0; faceId < ndn1->GetNFaces (); faceId++)
{
Ptr<ndn::NetDeviceFace> ndFace = ndn1->GetFace (faceId)->GetObject<ndn::NetDeviceFace> ();
if (ndFace == 0) continue;
Ptr<PointToPointNetDevice> nd1 = ndFace->GetNetDevice ()->GetObject<PointToPointNetDevice> ();
if (nd1 == 0) continue;
Ptr<Channel> channel = nd1->GetChannel ();
if (channel == 0) continue;
Ptr<PointToPointChannel> ppChannel = DynamicCast<PointToPointChannel> (channel);
Ptr<NetDevice> nd2 = ppChannel->GetDevice (0);
if (nd2->GetNode () == node1)
nd2 = ppChannel->GetDevice (1);
if (nd2->GetNode () == node2)
{
Ptr<ndn::Face> face1 = ndn1->GetFaceByNetDevice (nd1);
Ptr<ndn::Face> face2 = ndn2->GetFaceByNetDevice (nd2);
face1->SetUp (true);
face2->SetUp (true);
break;
}
}
}
void
LinkControlHelper::UpLinkByName (const std::string &node1, const std::string &node2)
{
UpLink (Names::Find<Node> (node1), Names::Find<Node> (node2));
}
}
}