Defines the TCP option of kind 2 (maximum segment size) as in RFC 793 More...
#include "tcp-option-rfc793.h"
Public Member Functions | |
TcpOptionMSS () | |
~TcpOptionMSS () override | |
uint32_t | Deserialize (Buffer::Iterator start) override |
Deserialize the Option from a buffer iterator. | |
TypeId | GetInstanceTypeId () const override |
Get the most derived TypeId for this Object. | |
uint8_t | GetKind () const override |
Get the ‘kind’ (as in RFC 793 ) of this option. | |
uint16_t | GetMSS () const |
Get the Maximum Segment Size stored in the Option. | |
uint32_t | GetSerializedSize () const override |
Returns number of bytes required for Option serialization. | |
void | Print (std::ostream &os) const override |
Print the Option contents. | |
void | Serialize (Buffer::Iterator start) const override |
Serialize the Option to a buffer iterator. | |
void | SetMSS (uint16_t mss) |
Set the Maximum Segment Size stored in the Option. | |
Public Member Functions inherited from ns3::TcpOption | |
TcpOption () | |
~TcpOption () override | |
Public Member Functions inherited from ns3::Object | |
Object () | |
Constructor. | |
~Object () override | |
Destructor. | |
void | AggregateObject (Ptr< Object > other) |
Aggregate two Objects together. | |
void | Dispose () |
Dispose of this Object. | |
AggregateIterator | GetAggregateIterator () const |
Get an iterator to the Objects aggregated to this one. | |
template<typename T > | |
Ptr< T > | GetObject () const |
Get a pointer to the requested aggregated Object. | |
template<> | |
Ptr< Object > | GetObject () const |
Specialization of () for objects of type ns3::Object. | |
template<typename T > | |
Ptr< T > | GetObject (TypeId tid) const |
Get a pointer to the requested aggregated Object by TypeId. | |
template<> | |
Ptr< Object > | GetObject (TypeId tid) const |
Specialization of (TypeId tid) for objects of type ns3::Object. | |
void | Initialize () |
Invoke DoInitialize on all Objects aggregated to this one. | |
bool | IsInitialized () const |
Check if the object has been initialized. | |
void | UnidirectionalAggregateObject (Ptr< Object > other) |
Aggregate an Object to another Object. | |
Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter > | |
SimpleRefCount () | |
Default constructor. | |
SimpleRefCount (const SimpleRefCount &o) | |
Copy constructor. | |
uint32_t | GetReferenceCount () const |
Get the reference count of the object. | |
SimpleRefCount & | operator= (const SimpleRefCount &o) |
Assignment operator. | |
void | Ref () const |
Increment the reference count. | |
void | Unref () const |
Decrement the reference count. | |
Public Member Functions inherited from ns3::ObjectBase | |
virtual | ~ObjectBase () |
Virtual destructor. | |
void | GetAttribute (std::string name, AttributeValue &value, bool permissive=false) const |
Get the value of an attribute, raising fatal errors if unsuccessful. | |
bool | GetAttributeFailSafe (std::string name, AttributeValue &value) const |
Get the value of an attribute without raising errors. | |
void | SetAttribute (std::string name, const AttributeValue &value) |
Set a single attribute, raising fatal errors if unsuccessful. | |
bool | SetAttributeFailSafe (std::string name, const AttributeValue &value) |
Set a single attribute without raising errors. | |
bool | TraceConnect (std::string name, std::string context, const CallbackBase &cb) |
Connect a TraceSource to a Callback with a context. | |
bool | TraceConnectWithoutContext (std::string name, const CallbackBase &cb) |
Connect a TraceSource to a Callback without a context. | |
bool | TraceDisconnect (std::string name, std::string context, const CallbackBase &cb) |
Disconnect from a TraceSource a Callback previously connected with a context. | |
bool | TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb) |
Disconnect from a TraceSource a Callback previously connected without a context. | |
Static Public Member Functions | |
static TypeId | GetTypeId () |
Get the type ID. | |
Static Public Member Functions inherited from ns3::TcpOption | |
static Ptr< TcpOption > | CreateOption (uint8_t kind) |
Creates an option. | |
static TypeId | GetTypeId () |
Get the type ID. | |
static bool | IsKindKnown (uint8_t kind) |
Check if the option is implemented. | |
Static Public Member Functions inherited from ns3::Object | |
static TypeId | GetTypeId () |
Register this type. | |
Static Public Member Functions inherited from ns3::ObjectBase | |
static TypeId | GetTypeId () |
Get the type ID. | |
Protected Attributes | |
uint16_t | m_mss |
maximum segment size | |
Additional Inherited Members | |
Public Types inherited from ns3::TcpOption | |
enum | Kind { END = 0 , NOP = 1 , MSS = 2 , WINSCALE = 3 , SACKPERMITTED = 4 , SACK = 5 , TS = 8 , UNKNOWN = 255 } |
The option Kind, as defined in the respective RFCs. More... | |
Protected Member Functions inherited from ns3::Object | |
Object (const Object &o) | |
Copy an Object. | |
virtual void | DoDispose () |
Destructor implementation. | |
virtual void | DoInitialize () |
Initialize() implementation. | |
virtual void | NotifyNewAggregate () |
Notify all Objects aggregated to this one of a new Object being aggregated. | |
Protected Member Functions inherited from ns3::ObjectBase | |
void | ConstructSelf (const AttributeConstructionList &attributes) |
Complete construction of ObjectBase; invoked by derived classes. | |
virtual void | NotifyConstructionCompleted () |
Notifier called once the ObjectBase is fully constructed. | |
Related Symbols inherited from ns3::ObjectBase | |
static TypeId | GetObjectIid () |
Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. | |
Defines the TCP option of kind 2 (maximum segment size) as in RFC 793
Definition at line 69 of file tcp-option-rfc793.h.
ns3::TcpOptionMSS::TcpOptionMSS | ( | ) |
Definition at line 161 of file tcp-option-rfc793.cc.
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override |
Definition at line 167 of file tcp-option-rfc793.cc.
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overridevirtual |
Deserialize the Option from a buffer iterator.
start | the buffer iterator |
Implements ns3::TcpOption.
Definition at line 209 of file tcp-option-rfc793.cc.
References GetKind(), GetSerializedSize(), m_mss, NS_ABORT_IF, NS_LOG_WARN, ns3::Buffer::Iterator::ReadNtohU16(), and ns3::Buffer::Iterator::ReadU8().
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overridevirtual |
Get the most derived TypeId for this Object.
This method is typically implemented by ns3::Object::GetInstanceTypeId but some classes which derive from ns3::ObjectBase directly have to implement it themselves.
Reimplemented from ns3::TcpOption.
Definition at line 182 of file tcp-option-rfc793.cc.
References GetTypeId().
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overridevirtual |
Get the ‘kind’ (as in RFC 793 ) of this option.
Implements ns3::TcpOption.
Definition at line 229 of file tcp-option-rfc793.cc.
References ns3::TcpOption::MSS.
Referenced by Deserialize(), and Serialize().
uint16_t ns3::TcpOptionMSS::GetMSS | ( | ) | const |
Get the Maximum Segment Size stored in the Option.
Definition at line 235 of file tcp-option-rfc793.cc.
References m_mss.
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overridevirtual |
Returns number of bytes required for Option serialization.
Implements ns3::TcpOption.
Definition at line 194 of file tcp-option-rfc793.cc.
Referenced by Deserialize(), and TcpHeaderWithRFC793OptionTestCase::OneOptionAtTime().
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static |
Get the type ID.
Definition at line 172 of file tcp-option-rfc793.cc.
References ns3::TypeId::SetParent().
Referenced by ns3::TcpOption::CreateOption(), and GetInstanceTypeId().
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overridevirtual |
Print the Option contents.
os | the output stream |
Implements ns3::TcpOption.
Definition at line 188 of file tcp-option-rfc793.cc.
References m_mss.
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overridevirtual |
Serialize the Option to a buffer iterator.
start | the buffer iterator |
Implements ns3::TcpOption.
Definition at line 200 of file tcp-option-rfc793.cc.
References GetKind(), m_mss, ns3::Buffer::Iterator::WriteHtonU16(), and ns3::Buffer::Iterator::WriteU8().
void ns3::TcpOptionMSS::SetMSS | ( | uint16_t | mss | ) |
Set the Maximum Segment Size stored in the Option.
mss | The Maximum Segment Size |
Definition at line 241 of file tcp-option-rfc793.cc.
References m_mss.
Referenced by TcpHeaderWithRFC793OptionTestCase::OneOptionAtTime().
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protected |
maximum segment size
Definition at line 101 of file tcp-option-rfc793.h.
Referenced by Deserialize(), GetMSS(), Print(), Serialize(), and SetMSS().