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> ())
112 std::list<NdiscCache::Entry *> entryList;
119 entryList.push_back (entry);
132 entry->SetIpv6Address (to);
143 if ((*i).second == entry)
184 *os << i->first <<
" dev ";
192 *os << static_cast<int> (
m_device->GetIfIndex ());
195 *os <<
" lladdr " << i->second->GetMacAddress ();
197 if (i->second->IsReachable ())
199 *os <<
" REACHABLE\n";
201 else if (i->second->IsDelay ())
205 else if (i->second->IsIncomplete ())
207 *os <<
" INCOMPLETE\n";
209 else if (i->second->IsProbe ())
213 else if (i->second->IsStale ())
217 else if (i->second->IsPermanent ())
219 *os <<
" PERMANENT\n";
223 NS_FATAL_ERROR (
"Test for possibly unreachable code-- please file a bug report, with a test case, if this is ever hit");
232 m_nudTimer (
Timer::CANCEL_ON_DESTROY),
233 m_lastReachabilityConfirmation (
Seconds (0.0)),
255 if (m_waiting.size () >=
m_ndCache->GetUnresQlen ())
259 m_waiting.pop_front ();
261 m_waiting.push_back (p);
283 if (m_ipv6Address.IsLinkLocal ())
285 addr =
m_ndCache->GetInterface ()->GetLinkLocalAddress ().GetAddress ();
287 else if (!m_ipv6Address.IsAny ())
289 addr =
m_ndCache->GetInterface ()->GetAddressMatchingDestination (m_ipv6Address).GetAddress ();
299 if (m_nsRetransmit < m_ndCache->
m_icmpv6->GetMaxMulticastSolicit ())
305 StartRetransmitTimer ();
310 if (malformedPacket.first == 0)
312 malformedPacket.first = Create<Packet> ();
316 malformedPacket.first->AddHeader (malformedPacket.second);
333 if (m_ipv6Address.IsLinkLocal ())
335 addr =
m_ndCache->GetInterface ()->GetLinkLocalAddress ().GetAddress ();
337 else if (!m_ipv6Address.IsAny ())
339 addr =
m_ndCache->GetInterface ()->GetAddressMatchingDestination (m_ipv6Address).GetAddress ();
354 p.first->AddHeader (p.second);
365 if (m_nsRetransmit < m_ndCache->
m_icmpv6->GetMaxUnicastSolicit ())
371 if (m_ipv6Address.IsLinkLocal ())
373 addr =
m_ndCache->GetInterface ()->GetLinkLocalAddress ().GetAddress ();
375 else if (!m_ipv6Address.IsAny ())
377 addr =
m_ndCache->GetInterface ()->GetAddressMatchingDestination (m_ipv6Address).GetAddress ();
393 p.first->AddHeader (p.second);
409 m_ipv6Address = ipv6Address;
415 return m_lastReachabilityConfirmation;
421 if (m_nudTimer.IsRunning ())
423 m_nudTimer.Cancel ();
428 m_nudTimer.SetDelay (
m_ndCache->m_icmpv6->GetReachableTime ());
429 m_nudTimer.Schedule ();
436 if (m_state == REACHABLE)
439 if (m_nudTimer.IsRunning ())
441 m_nudTimer.Cancel ();
443 m_nudTimer.Schedule ();
450 if (m_nudTimer.IsRunning ())
452 m_nudTimer.Cancel ();
456 m_nudTimer.SetDelay (
m_ndCache->m_icmpv6->GetRetransmissionTime ());
457 m_nudTimer.Schedule ();
463 if (m_nudTimer.IsRunning ())
465 m_nudTimer.Cancel ();
469 m_nudTimer.SetDelay (
m_ndCache->m_icmpv6->GetDelayFirstProbe ());
470 m_nudTimer.Schedule ();
476 if (m_nudTimer.IsRunning ())
478 m_nudTimer.Cancel ();
482 m_nudTimer.SetDelay (
m_ndCache->m_icmpv6->GetRetransmissionTime ());
483 m_nudTimer.Schedule ();
489 m_nudTimer.Cancel ();
496 m_state = INCOMPLETE;
500 m_waiting.push_back (p);
554 return (m_state == STALE);
560 return (m_state == REACHABLE);
566 return (m_state ==
DELAY);
572 return (m_state == INCOMPLETE);
578 return (m_state == PROBE);
584 return (m_state == PERMANENT);
601 os << m_ipv6Address <<
" lladdr " << m_macAddress <<
" state ";
Address GetMacAddress() const
Get the MAC address of this entry.
void FunctionDelayTimeout()
Function called when delay timer timeout.
static TypeId GetTypeId()
Get the type ID.
Simulation virtual time values and global simulation resolution.
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 "...
bool IsReachable() const
Is the entry REACHABLE.
A simple virtual Timer class.
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
virtual NdiscCache::Entry * Add(Ipv6Address to)
Add an entry.
void Print(std::ostream &os) const
Print this entry to the given output stream.
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.
bool IsIncomplete() const
Is the entry INCOMPLETE.
#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.
Time GetLastReachabilityConfirmation() const
Get the time of last reachability confirmation.
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< NetDevice > GetDevice() const
Get the NetDevice associated with this cache.
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.
Ptr< Ipv6Interface > GetInterface() const
Get the Ipv6Interface associated with this cache.
void PrintNdiscCache(Ptr< OutputStreamWrapper > stream)
Print the NDISC cache entries.
#define NS_LOG_LOGIC(msg)
Use NS_LOG to output a message of level LOG_LOGIC.
void StartRetransmitTimer()
Start retransmit timer.
void ClearWaitingPacket()
Clear the waiting packet list.
Entry(NdiscCache *nd)
Constructor.
std::ostream & operator<<(std::ostream &os, const Angles &a)
print a struct Angles to output
bool IsStale() const
Is the entry STALE.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
void StartDelayTimer()
Start delay timer.
bool IsRouter() const
If the entry is a host or a router.
void StartReachableTimer()
Start the reachable timer.
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.
bool IsProbe() const
Is the entry PROBE.
virtual 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...
void MarkIncomplete(Ipv6PayloadHeaderPair p)
Changes the state to this entry to INCOMPLETE.
Cache m_ndCache
A list of Entry.
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 IsDelay() const
Is the entry DELAY.
Ptr< const AttributeAccessor > MakeUintegerAccessor(T1 a1)
Create an AttributeAccessor for a class data member, or a lone class get functor or set method...
bool IsPermanent() const
Is the entry PERMANENT.
a unique identifier for an interface.
void AddWaitingPacket(Ipv6PayloadHeaderPair p)
Add a packet (or replace old value) in the queue.
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 IsAny() const
If the IPv6 address is the "Any" address.
static Ipv6Address MakeSolicitedAddress(Ipv6Address addr)
Make the solicited IPv6 address.
Ptr< NetDevice > m_device
The NetDevice.