29#include "ns3/assert.h"
30#include "ns3/boolean.h"
33#include "ns3/nstime.h"
34#include "ns3/object-map.h"
35#include "ns3/packet.h"
36#include "ns3/simulator.h"
40#include <unordered_map>
52#undef NS_LOG_APPEND_CONTEXT
53#define NS_LOG_APPEND_CONTEXT \
56 std::clog << " [node " << m_node->GetId() << "] "; \
66 TypeId(
"ns3::TcpL4Protocol")
68 .SetGroupName(
"Internet")
70 .AddAttribute(
"RttEstimatorType",
71 "Type of RttEstimator objects.",
75 .AddAttribute(
"SocketType",
76 "Socket type of TCP objects.",
80 .AddAttribute(
"RecoveryType",
81 "Recovery type of TCP objects.",
85 .AddAttribute(
"SocketList",
86 "A container of sockets associated to this protocol. "
87 "The underlying type is an unordered map, the attribute name "
88 "is kept for backward compatibility.",
124 if (node && (ipv4 || ipv6))
128 tcpFactory->SetTcp(
this);
129 node->AggregateObject(tcpFactory);
195 congestionAlgorithmFactory.
SetTypeId(congestionTypeId);
196 recoveryAlgorithmFactory.
SetTypeId(recoveryTypeId);
204 socket->SetTcp(
this);
206 socket->SetCongestionControlAlgorithm(algo);
207 socket->SetRecoveryAlgorithm(recovery);
254 NS_LOG_FUNCTION(
this << boundNetDevice << localAddress << localPort << peerAddress << peerPort);
255 return m_endPoints->
Allocate(boundNetDevice, localAddress, localPort, peerAddress, peerPort);
300 NS_LOG_FUNCTION(
this << boundNetDevice << localAddress << localPort << peerAddress << peerPort);
319 const uint8_t payload[8])
321 NS_LOG_FUNCTION(
this << icmpSource << (uint16_t)icmpTtl << (uint16_t)icmpType
322 << (uint16_t)icmpCode << icmpInfo << payloadSource << payloadDestination);
325 src = payload[0] << 8;
327 dst = payload[2] << 8;
331 if (endPoint !=
nullptr)
333 endPoint->
ForwardIcmp(icmpSource, icmpTtl, icmpType, icmpCode, icmpInfo);
337 NS_LOG_DEBUG(
"no endpoint found source=" << payloadSource
338 <<
", destination=" << payloadDestination
339 <<
", src=" << src <<
", dst=" << dst);
351 const uint8_t payload[8])
353 NS_LOG_FUNCTION(
this << icmpSource << (uint16_t)icmpTtl << (uint16_t)icmpType
354 << (uint16_t)icmpCode << icmpInfo << payloadSource << payloadDestination);
357 src = payload[0] << 8;
359 dst = payload[2] << 8;
364 if (endPoint !=
nullptr)
366 endPoint->
ForwardIcmp(icmpSource, icmpTtl, icmpType, icmpCode, icmpInfo);
370 NS_LOG_DEBUG(
"no endpoint found source=" << payloadSource
371 <<
", destination=" << payloadDestination
372 <<
", src=" << src <<
", dst=" << dst);
382 NS_LOG_FUNCTION(
this << packet << incomingTcpHeader << source << destination);
390 packet->PeekHeader(incomingTcpHeader);
392 NS_LOG_LOGIC(
"TcpL4Protocol " <<
this <<
" receiving seq "
396 <<
" data size " << packet->GetSize());
412 NS_LOG_FUNCTION(
this << incomingHeader << incomingSAddr << incomingDAddr);
440 SendPacket(rstPacket, outgoingTcpHeader, incomingDAddr, incomingSAddr);
449 NS_LOG_FUNCTION(
this << packet << incomingIpHeader << incomingInterface);
461 return checksumControl;
471 if (endPoints.empty())
475 NS_LOG_LOGIC(
" No Ipv4 endpoints matched on TcpL4Protocol, trying Ipv6 " <<
this);
485 return (this->
Receive(packet, ipv6Header, fakeInterface));
490 <<
" received a packet but"
491 " no endpoints matched."
494 <<
" source IP: " << incomingIpHeader.
GetSource()
504 NS_ASSERT_MSG(endPoints.size() == 1,
"Demux returned more than one endpoint");
506 <<
" received a packet and"
507 " now forwarding it up to endpoint/socket");
510 ->ForwardUp(packet, incomingIpHeader, incomingTcpHeader.
GetSourcePort(), incomingInterface);
537 return checksumControl;
546 if (endPoints.empty())
550 <<
" received a packet but"
551 " no endpoints matched."
554 <<
" source IP: " << incomingIpHeader.
GetSource()
564 NS_ASSERT_MSG(endPoints.size() == 1,
"Demux returned more than one endpoint");
566 <<
" received a packet and"
567 " now forwarding it up to endpoint/socket");
570 ->ForwardUp(packet, incomingIpHeader, incomingTcpHeader.
GetSourcePort(), interface);
586 << packet->GetSize());
598 packet->AddHeader(outgoingHeader);
609 if (ipv4->GetRoutingProtocol())
611 route = ipv4->GetRoutingProtocol()->RouteOutput(packet, header, oif, errno_);
622 NS_FATAL_ERROR(
"Trying to use Tcp on a node without an Ipv4 interface");
637 << packet->GetSize());
657 packet->AddHeader(outgoingHeader);
668 if (ipv6->GetRoutingProtocol())
670 route = ipv6->GetRoutingProtocol()->RouteOutput(packet, header, oif, errno_);
681 NS_FATAL_ERROR(
"Trying to use Tcp on a node without an Ipv6 interface");
746 if (socketItem.second == socket)
761 if (socketItem.second == socket)
763 socketItem.second =
nullptr;
a polymophic address class
void Nullify()
Discard the implementation, set it to null.
bool IsNull() const
Check for null implementation.
static Inet6SocketAddress ConvertFrom(const Address &addr)
Convert the address to a InetSocketAddress.
static bool IsMatchingType(const Address &addr)
If the address match.
Ipv6Address GetIpv6() const
Get the IPv6 address.
static bool IsMatchingType(const Address &address)
Ipv4Address GetIpv4() const
static InetSocketAddress ConvertFrom(const Address &address)
Returns an InetSocketAddress which corresponds to the input Address.
L4 Protocol abstract base class.
Ipv4 addresses are stored in host order in this class.
static Ipv4Address ConvertFrom(const Address &address)
static bool IsMatchingType(const Address &address)
Demultiplexes packets to various transport layer endpoints.
Ipv4EndPoint * SimpleLookup(Ipv4Address daddr, uint16_t dport, Ipv4Address saddr, uint16_t sport)
simple lookup for a match with all the parameters.
EndPoints Lookup(Ipv4Address daddr, uint16_t dport, Ipv4Address saddr, uint16_t sport, Ptr< Ipv4Interface > incomingInterface)
lookup for a match with all the parameters.
void DeAllocate(Ipv4EndPoint *endPoint)
Remove a end point.
Ipv4EndPoint * Allocate()
Allocate a Ipv4EndPoint.
std::list< Ipv4EndPoint * > EndPoints
Container of the IPv4 endpoints.
A representation of an internet endpoint/connection.
void ForwardIcmp(Ipv4Address icmpSource, uint8_t icmpTtl, uint8_t icmpType, uint8_t icmpCode, uint32_t icmpInfo)
Forward the ICMP packet to the upper level.
Access to the IPv4 forwarding table, interfaces, and configuration.
virtual void Send(Ptr< Packet > packet, Ipv4Address source, Ipv4Address destination, uint8_t protocol, Ptr< Ipv4Route > route)=0
Describes an IPv6 address.
bool IsIpv4MappedAddress() const
If the address is an IPv4-mapped address.
static Ipv6Address ConvertFrom(const Address &address)
Convert the Address object into an Ipv6Address ones.
Ipv4Address GetIpv4MappedAddress() const
Return the Ipv4 address.
static bool IsMatchingType(const Address &address)
If the Address matches the type.
static Ipv6Address MakeIpv4MappedAddress(Ipv4Address addr)
Make the Ipv4-mapped IPv6 address.
Demultiplexer for end points.
EndPoints Lookup(Ipv6Address dst, uint16_t dport, Ipv6Address src, uint16_t sport, Ptr< Ipv6Interface > incomingInterface)
lookup for a match with all the parameters.
Ipv6EndPoint * Allocate()
Allocate a Ipv6EndPoint.
Ipv6EndPoint * SimpleLookup(Ipv6Address dst, uint16_t dport, Ipv6Address src, uint16_t sport)
Simple lookup for a four-tuple match.
void DeAllocate(Ipv6EndPoint *endPoint)
Remove a end point.
std::list< Ipv6EndPoint * > EndPoints
Container of the IPv6 endpoints.
A representation of an IPv6 endpoint/connection.
void ForwardIcmp(Ipv6Address src, uint8_t ttl, uint8_t type, uint8_t code, uint32_t info)
Forward the ICMP packet to the upper level.
Access to the IPv6 forwarding table, interfaces, and configuration.
virtual void Send(Ptr< Packet > packet, Ipv6Address source, Ipv6Address destination, uint8_t protocol, Ptr< Ipv6Route > route)=0
Higher-level layers call this method to send a packet down the stack to the MAC and PHY layers.
IPv6 layer implementation.
static bool ChecksumEnabled()
Instantiate subclasses of ns3::Object.
Ptr< Object > Create() const
Create an Object instance of the configured TypeId.
void SetTypeId(TypeId tid)
Set the TypeId of the Objects to be created by this factory.
virtual void NotifyNewAggregate()
Notify all Objects aggregated to this one of a new Object being aggregated.
Ptr< T > GetObject() const
Get a pointer to the requested aggregated Object.
virtual void DoDispose()
Destructor implementation.
Smart pointer class similar to boost::intrusive_ptr.
Base class for all RTT Estimators.
static TypeId GetTypeId()
Get the type ID.
SocketErrno
Enumeration of the possible errors returned by a socket.
Congestion control abstract class.
static TypeId GetTypeId()
Get the type ID.
TCP socket creation and multiplexing/demultiplexing.
void SetNode(Ptr< Node > node)
Set node associated with this stack.
void SendPacketV4(Ptr< Packet > pkt, const TcpHeader &outgoing, const Ipv4Address &saddr, const Ipv4Address &daddr, Ptr< NetDevice > oif=nullptr) const
Send a packet via TCP (IPv4)
void NoEndPointsFound(const TcpHeader &incomingHeader, const Address &incomingSAddr, const Address &incomingDAddr)
Check if RST packet should be sent, and in case, send it.
bool RemoveSocket(Ptr< TcpSocketBase > socket)
Remove a socket from the internal list.
TypeId m_congestionTypeId
The socket TypeId.
IpL4Protocol::RxStatus PacketReceived(Ptr< Packet > packet, TcpHeader &incomingTcpHeader, const Address &source, const Address &destination)
Get the tcp header of the incoming packet and checks its checksum if needed.
TypeId m_recoveryTypeId
The recovery TypeId.
IpL4Protocol::DownTargetCallback m_downTarget
Callback to send packets over IPv4.
void SetDownTarget6(IpL4Protocol::DownTargetCallback6 cb) override
This method allows a caller to set the current down target callback set for this L4 protocol (IPv6 ca...
void DoDispose() override
Destructor implementation.
Ipv4EndPointDemux * m_endPoints
A list of IPv4 end points.
Ipv6EndPointDemux * m_endPoints6
A list of IPv6 end points.
Ptr< Node > m_node
the node this stack is associated with
static TypeId GetTypeId()
Get the type ID.
void NotifyNewAggregate() override
Setup socket factory and callbacks when aggregated to a node.
Ipv6EndPoint * Allocate6()
Allocate an IPv6 Endpoint.
void DeAllocate(Ipv4EndPoint *endPoint)
Remove an IPv4 Endpoint.
void ReceiveIcmp(Ipv4Address icmpSource, uint8_t icmpTtl, uint8_t icmpType, uint8_t icmpCode, uint32_t icmpInfo, Ipv4Address payloadSource, Ipv4Address payloadDestination, const uint8_t payload[8]) override
Called from lower-level layers to send the ICMP packet up in the stack.
IpL4Protocol::DownTargetCallback GetDownTarget() const override
This method allows a caller to get the current down target callback set for this L4 protocol (IPv4 ca...
static const uint8_t PROT_NUMBER
protocol number (0x6)
~TcpL4Protocol() override
std::unordered_map< uint64_t, Ptr< TcpSocketBase > > m_sockets
Unordered map of socket IDs and corresponding sockets.
void SetDownTarget(IpL4Protocol::DownTargetCallback cb) override
This method allows a caller to set the current down target callback set for this L4 protocol (IPv4 ca...
Ptr< Socket > CreateSocket()
Create a TCP socket using the TypeId set by SocketType attribute.
void SendPacketV6(Ptr< Packet > pkt, const TcpHeader &outgoing, const Ipv6Address &saddr, const Ipv6Address &daddr, Ptr< NetDevice > oif=nullptr) const
Send a packet via TCP (IPv6)
uint64_t m_socketIndex
index of the next socket to be created
IpL4Protocol::DownTargetCallback6 GetDownTarget6() const override
This method allows a caller to get the current down target callback set for this L4 protocol (IPv6 ca...
void SendPacket(Ptr< Packet > pkt, const TcpHeader &outgoing, const Address &saddr, const Address &daddr, Ptr< NetDevice > oif=nullptr) const
Send a packet via TCP (IP-agnostic)
void AddSocket(Ptr< TcpSocketBase > socket)
Make a socket fully operational.
IpL4Protocol::DownTargetCallback6 m_downTarget6
Callback to send packets over IPv6.
IpL4Protocol::RxStatus Receive(Ptr< Packet > p, const Ipv4Header &incomingIpHeader, Ptr< Ipv4Interface > incomingInterface) override
Called from lower-level layers to send the packet up in the stack.
Ipv4EndPoint * Allocate()
Allocate an IPv4 Endpoint.
int GetProtocolNumber() const override
Returns the protocol number of this protocol.
TypeId m_rttTypeId
The RTT Estimator TypeId.
static TypeId GetTypeId()
Get the type ID.
a unique identifier for an interface.
TypeId SetParent(TypeId tid)
Set the parent TypeId.
std::string GetName() const
Get the name.
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file,...
#define NS_ASSERT_MSG(condition, message)
At runtime, in debugging builds, if this condition is not true, the program prints the message to out...
#define NS_FATAL_ERROR(msg)
Report a fatal error with a message and terminate.
#define NS_LOG_ERROR(msg)
Use NS_LOG to output a message of level LOG_ERROR.
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
#define NS_LOG_LOGIC(msg)
Use NS_LOG to output a message of level LOG_LOGIC.
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Ptr< T > CreateObject(Args &&... args)
Create an object by type, with varying number of constructor parameters.
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Ptr< T > Create(Ts &&... args)
Create class instances by constructors with varying numbers of arguments and return them by Ptr.
SequenceNumber< uint32_t, int32_t > SequenceNumber32
32 bit Sequence number.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Callback< R, Args... > MakeCallback(R(T::*memPtr)(Args...), OBJ objPtr)
Build Callbacks for class method members which take varying numbers of arguments and potentially retu...
ObjectPtrContainerValue ObjectMapValue
ObjectMapValue is an alias for ObjectPtrContainerValue.
Ptr< const AttributeChecker > MakeTypeIdChecker()
Ptr< const AttributeAccessor > MakeObjectMapAccessor(U T::*memberVariable)
MakeAccessorHelper implementation for ObjectVector.
Ptr< const AttributeChecker > MakeObjectMapChecker()
Ptr< const AttributeAccessor > MakeTypeIdAccessor(T1 a1)