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> ())
107 std::list<NdiscCache::Entry *> entryList;
113 entryList.push_back (entry);
126 entry->SetIpv6Address (to);
137 if ((*i).second == entry)
178 *os << i->first <<
" dev ";
186 *os << static_cast<int> (
m_device->GetIfIndex ());
189 *os <<
" lladdr " << i->second->GetMacAddress ();
191 if (i->second->IsReachable ())
193 *os <<
" REACHABLE\n";
195 else if (i->second->IsDelay ())
199 else if (i->second->IsIncomplete ())
201 *os <<
" INCOMPLETE\n";
203 else if (i->second->IsProbe ())
207 else if (i->second->IsStale ())
211 else if (i->second->IsPermanent ())
213 *os <<
" PERMANENT\n";
217 NS_FATAL_ERROR (
"Test for possibly unreachable code-- please file a bug report, with a test case, if this is ever hit");
226 m_nudTimer (
Timer::CANCEL_ON_DESTROY),
227 m_lastReachabilityConfirmation (
Seconds (0.0)),
249 if (m_waiting.size () >=
m_ndCache->GetUnresQlen ())
253 m_waiting.pop_front ();
255 m_waiting.push_back (p);
278 if (m_ipv6Address.IsLinkLocal ())
280 addr =
m_ndCache->GetInterface ()->GetLinkLocalAddress ().GetAddress ();;
282 else if (!m_ipv6Address.IsAny ())
284 addr =
m_ndCache->GetInterface ()->GetAddressMatchingDestination (m_ipv6Address).GetAddress ();
294 if (m_nsRetransmit < icmpv6->MAX_MULTICAST_SOLICIT)
300 StartRetransmitTimer ();
305 if (malformedPacket.first == 0)
307 malformedPacket.first = Create<Packet> ();
311 malformedPacket.first->AddHeader (malformedPacket.second);
330 if (m_ipv6Address.IsLinkLocal ())
332 addr =
m_ndCache->GetInterface ()->GetLinkLocalAddress ().GetAddress ();
334 else if (!m_ipv6Address.IsAny ())
336 addr =
m_ndCache->GetInterface ()->GetAddressMatchingDestination (m_ipv6Address).GetAddress ();
351 p.first->AddHeader (p.second);
364 if (m_nsRetransmit < icmpv6->MAX_UNICAST_SOLICIT)
370 if (m_ipv6Address.IsLinkLocal ())
372 addr =
m_ndCache->GetInterface ()->GetLinkLocalAddress ().GetAddress ();
374 else if (!m_ipv6Address.IsAny ())
376 addr =
m_ndCache->GetInterface ()->GetAddressMatchingDestination (m_ipv6Address).GetAddress ();
392 p.first->AddHeader (p.second);
408 m_ipv6Address = ipv6Address;
414 return m_lastReachabilityConfirmation;
420 if (m_nudTimer.IsRunning ())
422 m_nudTimer.Cancel ();
428 m_nudTimer.Schedule ();
435 if (m_state == REACHABLE)
438 if (m_nudTimer.IsRunning ())
440 m_nudTimer.Cancel ();
442 m_nudTimer.Schedule ();
449 if (m_nudTimer.IsRunning ())
451 m_nudTimer.Cancel ();
455 m_nudTimer.Schedule ();
461 if (m_nudTimer.IsRunning ())
463 m_nudTimer.Cancel ();
467 m_nudTimer.Schedule ();
473 if (m_nudTimer.IsRunning ())
475 m_nudTimer.Cancel ();
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.
IPv6 layer implementation.
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file...
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Time MilliSeconds(uint64_t value)
Construct a Time in the indicated unit.
#define NS_FATAL_ERROR(msg)
Report a fatal error with a message and terminate.
virtual void DoDispose(void)
Destructor implementation.
#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.
static const uint32_t REACHABLE_TIME
Neighbor Discovery node constants : reachable time.
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.
static const uint32_t RETRANS_TIMER
Neighbor Discovery node constants : retransmission timer.
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.
void SetDevice(Ptr< NetDevice > device, Ptr< Ipv6Interface > interface)
Set the device and interface.
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.
static const uint8_t DELAY_FIRST_PROBE_TIME
Neighbor Discovery node constants : delay for the first probe.
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.