22 #include "ns3/uinteger.h"
24 #include "ns3/names.h"
42 .SetGroupName (
"Internet")
43 .AddAttribute (
"UnresolvedQueueSize",
44 "Size of the queue for packets pending an NA reply.",
47 MakeUintegerChecker<uint32_t> ())
109 std::list<NdiscCache::Entry *> entryList;
115 entryList.push_back (entry);
128 entry->SetIpv6Address (to);
139 if ((*i).second == entry)
180 *os << i->first <<
" dev ";
188 *os << static_cast<int> (
m_device->GetIfIndex ());
191 *os <<
" lladdr " << i->second->GetMacAddress ();
193 if (i->second->IsReachable ())
195 *os <<
" REACHABLE\n";
197 else if (i->second->IsDelay ())
201 else if (i->second->IsIncomplete ())
203 *os <<
" INCOMPLETE\n";
205 else if (i->second->IsProbe ())
209 else if (i->second->IsStale ())
213 else if (i->second->IsPermanent ())
215 *os <<
" PERMANENT\n";
219 NS_FATAL_ERROR (
"Test for possibly unreachable code-- please file a bug report, with a test case, if this is ever hit");
228 m_nudTimer (
Timer::CANCEL_ON_DESTROY),
229 m_lastReachabilityConfirmation (
Seconds (0.0)),
251 if (m_waiting.size () >=
m_ndCache->GetUnresQlen ())
255 m_waiting.pop_front ();
257 m_waiting.push_back (p);
279 if (m_ipv6Address.IsLinkLocal ())
281 addr =
m_ndCache->GetInterface ()->GetLinkLocalAddress ().GetAddress ();;
283 else if (!m_ipv6Address.IsAny ())
285 addr =
m_ndCache->GetInterface ()->GetAddressMatchingDestination (m_ipv6Address).GetAddress ();
295 if (m_nsRetransmit < m_ndCache->
m_icmpv6->GetMaxMulticastSolicit ())
301 StartRetransmitTimer ();
306 if (malformedPacket.first == 0)
308 malformedPacket.first = Create<Packet> ();
312 malformedPacket.first->AddHeader (malformedPacket.second);
329 if (m_ipv6Address.IsLinkLocal ())
331 addr =
m_ndCache->GetInterface ()->GetLinkLocalAddress ().GetAddress ();
333 else if (!m_ipv6Address.IsAny ())
335 addr =
m_ndCache->GetInterface ()->GetAddressMatchingDestination (m_ipv6Address).GetAddress ();
350 p.first->AddHeader (p.second);
361 if (m_nsRetransmit < m_ndCache->
m_icmpv6->GetMaxUnicastSolicit ())
367 if (m_ipv6Address.IsLinkLocal ())
369 addr =
m_ndCache->GetInterface ()->GetLinkLocalAddress ().GetAddress ();
371 else if (!m_ipv6Address.IsAny ())
373 addr =
m_ndCache->GetInterface ()->GetAddressMatchingDestination (m_ipv6Address).GetAddress ();
389 p.first->AddHeader (p.second);
405 m_ipv6Address = ipv6Address;
411 return m_lastReachabilityConfirmation;
417 if (m_nudTimer.IsRunning ())
419 m_nudTimer.Cancel ();
424 m_nudTimer.SetDelay (
m_ndCache->m_icmpv6->GetReachableTime ());
425 m_nudTimer.Schedule ();
432 if (m_state == REACHABLE)
435 if (m_nudTimer.IsRunning ())
437 m_nudTimer.Cancel ();
439 m_nudTimer.Schedule ();
446 if (m_nudTimer.IsRunning ())
448 m_nudTimer.Cancel ();
452 m_nudTimer.SetDelay (
m_ndCache->m_icmpv6->GetRetransmissionTime ());
453 m_nudTimer.Schedule ();
459 if (m_nudTimer.IsRunning ())
461 m_nudTimer.Cancel ();
465 m_nudTimer.SetDelay (
m_ndCache->m_icmpv6->GetDelayFirstProbe ());
466 m_nudTimer.Schedule ();
472 if (m_nudTimer.IsRunning ())
474 m_nudTimer.Cancel ();
478 m_nudTimer.SetDelay (
m_ndCache->m_icmpv6->GetRetransmissionTime ());
479 m_nudTimer.Schedule ();
485 m_nudTimer.Cancel ();
492 m_state = INCOMPLETE;
496 m_waiting.push_back (p);
550 return (m_state == STALE);
556 return (m_state == REACHABLE);
562 return (m_state ==
DELAY);
568 return (m_state == INCOMPLETE);
574 return (m_state == PROBE);
580 return (m_state == PERMANENT);
bool IsAny() const
If the IPv6 address is the "Any" address.
void FunctionDelayTimeout()
Function called when delay timer timeout.
static TypeId GetTypeId()
Get the type ID.
Simulation virtual time values and global simulation resolution.
Time GetLastReachabilityConfirmation() const
Get the time of last reachability confirmation.
Smart pointer class similar to boost::intrusive_ptr.
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by "...
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Address GetMacAddress() const
Get the MAC address of this entry.
NdiscCache::Entry * Add(Ipv6Address to)
Add an entry.
void SetUnresQlen(uint32_t unresQlen)
Set the max number of waiting packet.
void StopNudTimer()
Stop NUD timer and reset the NUD retransmission counter.
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file...
Ptr< Icmpv6L4Protocol > m_icmpv6
the icmpv6 L4 protocol for this cache.
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
#define NS_FATAL_ERROR(msg)
Report a fatal error with a message and terminate.
virtual void DoDispose(void)
Destructor implementation.
void SetDevice(Ptr< NetDevice > device, Ptr< Ipv6Interface > interface, Ptr< Icmpv6L4Protocol > icmpv6)
Set the device and interface.
#define NS_LOG_FUNCTION_NOARGS()
Output the name of the function.
void MarkPermanent()
Change the state to this entry to PERMANENT.
a polymophic address class
uint32_t GetUnresQlen()
Get the max number of waiting packet.
Ptr< Ipv6Interface > GetInterface() const
Get the Ipv6Interface associated with this cache.
bool IsDelay() const
Is the entry DELAY.
Ptr< Ipv6Interface > m_interface
the interface.
void FunctionRetransmitTimeout()
Function called when retransmit timer timeout.
void MarkReachable()
Changes the state to this entry to REACHABLE.
void Flush()
Flush the cache.
Hold an unsigned integer type.
#define DELAY(time)
Gets the delay between a given time and the current time.
IPv6 Neighbor Discovery cache.
void PrintNdiscCache(Ptr< OutputStreamWrapper > stream)
Print the NDISC cache entries.
void StartRetransmitTimer()
Start retransmit timer.
void ClearWaitingPacket()
Clear the waiting packet list.
Entry(NdiscCache *nd)
Constructor.
bool IsProbe() const
Is the entry PROBE.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
void StartDelayTimer()
Start delay timer.
void StartReachableTimer()
Start the reachable timer.
bool IsIncomplete() const
Is the entry INCOMPLETE.
void FunctionReachableTimeout()
Function called when reachable timer timeout.
void StartProbeTimer()
Start probe timer.
static Time Now(void)
Return the current simulation virtual time.
static const uint32_t DEFAULT_UNRES_QLEN
Default value for unres qlen.
void Remove(NdiscCache::Entry *entry)
Delete an entry.
void FunctionProbeTimeout()
Function called when probe timer timeout.
uint32_t m_unresQlen
Max number of packet stored in m_waiting.
void UpdateReachableTimer()
Update the reachable timer.
std::list< NdiscCache::Entry * > LookupInverse(Address dst)
Lookup in the cache for a MAC address.
void SetMacAddress(Address mac)
Set the MAC address of this entry.
Describes an IPv6 address.
NdiscCache::Entry * Lookup(Ipv6Address dst)
Lookup in the cache.
void MarkStale()
Changes the state to this entry to STALE.
void DoDispose()
Dispose this object.
void SetIpv6Address(Ipv6Address ipv6Address)
Set the IPv6 address.
void MarkDelay()
Change the state to this entry to DELAY.
Time Seconds(double value)
Construct a Time in the indicated unit.
static std::string FindName(Ptr< Object > object)
Given a pointer to an object, look to see if that object has a name associated with it and...
bool IsRouter() const
If the entry is a host or a router.
void MarkIncomplete(Ipv6PayloadHeaderPair p)
Changes the state to this entry to INCOMPLETE.
Cache m_ndCache
A list of Entry.
bool IsPermanent() const
Is the entry PERMANENT.
A record that holds information about a NdiscCache entry.
void SetRouter(bool router)
Set the node type.
A base class which provides memory management and object aggregation.
sgi::hash_map< Ipv6Address, NdiscCache::Entry *, Ipv6AddressHash >::iterator CacheI
Neighbor Discovery Cache container iterator.
std::pair< Ptr< Packet >, Ipv6Header > Ipv6PayloadHeaderPair
Pair of a packet and an Ipv4 header.
bool IsReachable() const
Is the entry REACHABLE.
Ptr< const AttributeAccessor > MakeUintegerAccessor(T1 a1)
Create an AttributeAccessor for a class data member, or a lone class get functor or set method...
a unique identifier for an interface.
void AddWaitingPacket(Ipv6PayloadHeaderPair p)
Add a packet (or replace old value) in the queue.
Ptr< NetDevice > GetDevice() const
Get the NetDevice associated with this cache.
TypeId SetParent(TypeId tid)
Set the parent TypeId.
void MarkProbe()
Changes the state to this entry to PROBE.
static const uint16_t PROT_NUMBER
The protocol number for IPv6 (0x86DD).
std::ostream * GetStream(void)
Return a pointer to an ostream previously set in the wrapper.
bool IsStale() const
Is the entry STALE.
static Ipv6Address MakeSolicitedAddress(Ipv6Address addr)
Make the solicited IPv6 address.
Ptr< NetDevice > m_device
The NetDevice.