/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2006 Georgia Tech Research Corporation, INRIA
*
* 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: George F. Riley<riley@ece.gatech.edu>
* Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
*/
#include "node.h"
#include "node-list.h"
#include "net-device.h"
#include "application.h"
#include "ns3/packet.h"
#include "ns3/simulator.h"
#include "ns3/object-vector.h"
#include "ns3/uinteger.h"
#include "ns3/log.h"
#include "ns3/assert.h"
#include "ns3/global-value.h"
#include "ns3/boolean.h"
NS_LOG_COMPONENT_DEFINE ("Node");
namespace ns3{
NS_OBJECT_ENSURE_REGISTERED (Node);
GlobalValue g_checksumEnabled = GlobalValue ("ChecksumEnabled",
"A global switch to enable all checksums for all protocols",
BooleanValue (false),
MakeBooleanChecker ());
TypeId
Node::GetTypeId (void)
{
static TypeId tid = TypeId ("ns3::Node")
.SetParent<Object> ()
.AddConstructor<Node> ()
.AddAttribute ("DeviceList", "The list of devices associated to this Node.",
ObjectVectorValue (),
MakeObjectVectorAccessor (&Node::m_devices),
MakeObjectVectorChecker<NetDevice> ())
.AddAttribute ("ApplicationList", "The list of applications associated to this Node.",
ObjectVectorValue (),
MakeObjectVectorAccessor (&Node::m_applications),
MakeObjectVectorChecker<Application> ())
.AddAttribute ("Id", "The id (unique integer) of this Node.",
TypeId::ATTR_GET, // allow only getting it.
UintegerValue (0),
MakeUintegerAccessor (&Node::m_id),
MakeUintegerChecker<uint32_t> ())
;
return tid;
}
Node::Node()
: m_id(0),
m_sid(0)
{
Construct ();
}
Node::Node(uint32_t sid)
: m_id(0),
m_sid(sid)
{
Construct ();
}
void
Node::Construct (void)
{
m_id = NodeList::Add (this);
}
Node::~Node ()
{}
uint32_t
Node::GetId (void) const
{
return m_id;
}
uint32_t
Node::GetSystemId (void) const
{
return m_sid;
}
uint32_t
Node::AddDevice (Ptr<NetDevice> device)
{
uint32_t index = m_devices.size ();
m_devices.push_back (device);
device->SetNode (this);
device->SetIfIndex(index);
device->SetReceiveCallback (MakeCallback (&Node::NonPromiscReceiveFromDevice, this));
NotifyDeviceAdded (device);
return index;
}
Ptr<NetDevice>
Node::GetDevice (uint32_t index) const
{
NS_ASSERT_MSG (index < m_devices.size (), "Device index " << index <<
" is out of range (only have " << m_devices.size () << " devices).");
return m_devices[index];
}
uint32_t
Node::GetNDevices (void) const
{
return m_devices.size ();
}
uint32_t
Node::AddApplication (Ptr<Application> application)
{
uint32_t index = m_applications.size ();
m_applications.push_back (application);
application->SetNode (this);
return index;
}
Ptr<Application>
Node::GetApplication (uint32_t index) const
{
NS_ASSERT_MSG (index < m_applications.size (), "Application index " << index <<
" is out of range (only have " << m_applications.size () << " applications).");
return m_applications[index];
}
uint32_t
Node::GetNApplications (void) const
{
return m_applications.size ();
}
void
Node::DoDispose()
{
for (std::vector<Ptr<NetDevice> >::iterator i = m_devices.begin ();
i != m_devices.end (); i++)
{
Ptr<NetDevice> device = *i;
device->Dispose ();
*i = 0;
}
m_devices.clear ();
for (std::vector<Ptr<Application> >::iterator i = m_applications.begin ();
i != m_applications.end (); i++)
{
Ptr<Application> application = *i;
application->Dispose ();
*i = 0;
}
m_applications.clear ();
Object::DoDispose ();
}
void
Node::NotifyDeviceAdded (Ptr<NetDevice> device)
{}
void
Node::RegisterProtocolHandler (ProtocolHandler handler,
uint16_t protocolType,
Ptr<NetDevice> device,
bool promiscuous)
{
struct Node::ProtocolHandlerEntry entry;
entry.handler = handler;
entry.protocol = protocolType;
entry.device = device;
entry.promiscuous = promiscuous;
// On demand enable promiscuous mode in netdevices
if (promiscuous)
{
if (device == 0)
{
for (std::vector<Ptr<NetDevice> >::iterator i = m_devices.begin ();
i != m_devices.end (); i++)
{
Ptr<NetDevice> dev = *i;
dev->SetPromiscReceiveCallback (MakeCallback (&Node::PromiscReceiveFromDevice, this));
}
}
else
{
device->SetPromiscReceiveCallback (MakeCallback (&Node::PromiscReceiveFromDevice, this));
}
}
m_handlers.push_back (entry);
}
void
Node::UnregisterProtocolHandler (ProtocolHandler handler)
{
for (ProtocolHandlerList::iterator i = m_handlers.begin ();
i != m_handlers.end (); i++)
{
if (i->handler.IsEqual (handler))
{
m_handlers.erase (i);
break;
}
}
}
bool
Node::ChecksumEnabled (void)
{
BooleanValue val;
g_checksumEnabled.GetValue (val);
return val.Get ();
}
bool
Node::PromiscReceiveFromDevice (Ptr<NetDevice> device, Ptr<const Packet> packet, uint16_t protocol,
const Address &from, const Address &to, NetDevice::PacketType packetType)
{
NS_LOG_FUNCTION(this);
return ReceiveFromDevice (device, packet, protocol, from, to, packetType, true);
}
bool
Node::NonPromiscReceiveFromDevice (Ptr<NetDevice> device, Ptr<const Packet> packet, uint16_t protocol,
const Address &from)
{
NS_LOG_FUNCTION(this);
return ReceiveFromDevice (device, packet, protocol, from, from, NetDevice::PacketType (0), false);
}
bool
Node::ReceiveFromDevice (Ptr<NetDevice> device, Ptr<const Packet> packet, uint16_t protocol,
const Address &from, const Address &to, NetDevice::PacketType packetType, bool promiscuous)
{
NS_LOG_DEBUG("Node " << GetId () << " ReceiveFromDevice: dev "
<< device->GetIfIndex () << " (type=" << device->GetInstanceTypeId ().GetName ()
<< ") Packet UID " << packet->GetUid ());
bool found = false;
for (ProtocolHandlerList::iterator i = m_handlers.begin ();
i != m_handlers.end (); i++)
{
if (i->device == 0 ||
(i->device != 0 && i->device == device))
{
if (i->protocol == 0 ||
i->protocol == protocol)
{
if (promiscuous == i->promiscuous)
{
i->handler (device, packet, protocol, from, to, packetType);
found = true;
}
}
}
}
return found;
}
}//namespace ns3