SS7M2UA Class Reference

SIGTRAN MTP2 User Adaptation Layer. More...

#include <yatesig.h>

Inheritance diagram for SS7M2UA:

List of all members.

Public Member Functions
	SS7M2UA (const NamedList &params)
virtual bool	initialize (const NamedList *config)
virtual bool	control (Operation oper, NamedList *params=0)
virtual unsigned int	status () const
virtual bool	transmitMSU (const SS7MSU &msu)
virtual void	recoverMSU (int sequence)
virtual bool	operational () const
virtual int	getSequence ()
virtual void	activeChange (bool active)
int32_t	iid () const
Protected Types
enum	LinkState {   LinkDown, LinkReq, LinkReqEmg, LinkUp,   LinkUpEmg }
Protected Member Functions
virtual void	timerTick (const Time &when)
SS7M2UAClient *	client () const
virtual bool	processMGMT (unsigned char msgType, const DataBlock &msg, int streamId)
virtual bool	processMAUP (unsigned char msgType, const DataBlock &msg, int streamId)
void	postRetrieve ()
Protected Attributes
SignallingTimer	m_retrieve
int32_t	m_iid
int	m_linkState
bool	m_rpo
bool	m_longSeq
Friends
class	SS7M2UAClient

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Detailed Description

SIGTRAN MTP2 User Adaptation Layer.

RFC3331 SS7 Layer 2 implementation over SCTP/IP. M2UA is intended to be used as a Provider-User where real MTP2 runs on a Signalling Gateway and MTP3 runs on an Application Server.

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Constructor & Destructor Documentation

SS7M2UA

(

const NamedList &

params

)

Constructor

Parameters:

params

List of construction parameters

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Member Function Documentation

virtual void activeChange

(

bool

active

)

[virtual]

Traffic activity state change notification

Parameters:

active

True if the ASP is active and traffic is allowed

Implements SIGAdaptUser.

virtual bool control	(	Operation	oper,
		NamedList *	params = 0
	)		[virtual]

Execute a control operation. Operations can change the link status or can query the aligned status.

Parameters:

oper	Operation to execute
params	Optional parameters for the operation

Returns:

True if the command completed successfully, for query operations also indicates the data link is aligned and operational

Reimplemented from SS7Layer2.

virtual int getSequence

(

)

[virtual]

Get the sequence number of the last MSU received, request if not available

Returns:

Last FSN received, negative if not available

Reimplemented from SS7Layer2.

int32_t iid

(

)

const [inline]

Retrieve the numeric Interface Identifier (if any)

Returns:

IID value, -1 if not set

virtual bool initialize

(

const NamedList *

config

)

[virtual]

Configure and initialize M2UA and its transport

Parameters:

config

Optional configuration parameters override

Returns:

True if M2UA and the transport were initialized properly

Reimplemented from SignallingComponent.

virtual bool operational

(

)

const [virtual]

Check if the link is fully operational

Returns:

True if the link is aligned and operational

Implements SS7Layer2.

virtual void recoverMSU

(

int

sequence

)

[virtual]

Remove the MSUs waiting in the transmit queue and return them

Parameters:

sequence

First sequence number to recover, flush earlier packets

Reimplemented from SS7Layer2.

virtual unsigned int status

(

)

const [virtual]

Retrieve the current link status indications

Returns:

Link status indication bits

Reimplemented from SS7Layer2.

virtual void timerTick

(

const Time &

when

)

[protected, virtual]

Periodical timer tick used to perform alignment and housekeeping

Parameters:

when	Time to use as computing base for events and timeouts

Reimplemented from SS7Layer2.

virtual bool transmitMSU

(

const SS7MSU &

msu

)

[virtual]

Push a Message Signal Unit down the protocol stack

Parameters:

msu	Message data, starting with Service Indicator Octet

Returns:

True if message was successfully queued

Implements SS7Layer2.

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The documentation for this class was generated from the following file:

• yatesig.h