|
|
Q.704 SS7 Layer 3 (Network) implementation on top of SS7 Layer 2
enum Operation { Pause = 0x100, Resume = 0x200, Restart = 0x300, Status = 0x400, } | Operation |
Control primitives
SS7MTP3 (const NamedList& params)
| SS7MTP3 |
Constructor
Parameters:
params | Layer's parameters |
~SS7MTP3 ()
| ~SS7MTP3 |
[virtual]
Destructor
bool initialize (const NamedList* config)
| initialize |
[virtual]
Configure and initialize the MTP3 and all its links
Parameters:
config | Optional configuration parameters override |
Returns: True if MTP3 and at least one link were initialized properly
Reimplemented from SS7Layer3.
int transmitMSU (const SS7MSU& msu, const SS7Label& label, int sls = -1)
| transmitMSU |
[virtual]
Push a Message Signal Unit down the protocol stack
Parameters:
msu | Message data, starting with Service Indicator Octet |
label | Routing label of the MSU used in routing |
sls | Signalling Link Selection, negative to choose best |
Returns: Link the message was successfully queued to, negative for error
Reimplemented from SS7Layer3.
bool operational (int sls = -1)
| operational |
[const virtual]
Check if the network/linkset is fully operational
Parameters:
sls | Signalling Link to check, negative to check if any is operational |
Returns: True if the linkset is enabled and operational
Reimplemented from SS7Layer3.
int inhibited (int sls)
| inhibited |
[const virtual]
Retrieve inhibition flags of a specific link
Parameters:
sls | Signalling Link to check |
Returns: Inhibitions of the specified link, zero if not inhibited
Reimplemented from SS7Layer3.
bool inhibit (int sls, int setFlags, int clrFlags = 0)
| inhibit |
[virtual]
Set and clear inhibition flags on the links
Parameters:
sls | Signalling Link to modify |
setFlags | Flag bits to set ORed together |
clrFlags | Flag bits to clear ORed together (optional) |
Returns: True if inhibition flags were set
Reimplemented from SS7Layer3.
unsigned int congestion (int sls)
| congestion |
[virtual]
Get the current congestion level of a link
Parameters:
sls | Signalling Link to check for congestion, -1 for maximum |
Returns: Congestion level, 0 if not congested, 3 if maximum congestion
Reimplemented from SS7Layer3.
int getSequence (int sls)
| getSequence |
[const virtual]
Get the sequence number of the last MSU received on a link
Parameters:
sls | Signalling Link to retrieve MSU number from |
Returns: Last FSN received, negative if not available
Reimplemented from SS7Layer3.
void recoverMSU (int sls, int sequence)
| recoverMSU |
[virtual]
Remove the MSUs waiting in the transmit queue and return them
Parameters:
sls | Signalling Link to recover MSUs from |
sequence | First sequence number to recover, flush earlier packets |
Reimplemented from SS7Layer3.
bool control (Operation oper, NamedList* params = 0)
| control |
[virtual]
Execute a control operation on the linkset
Parameters:
oper | Operation to execute |
params | Optional parameters for the operation |
Returns: True if the command completed successfully, for query operations also indicates the linkset is enabled and operational
Reimplemented from SignallingComponent.
void attach (SS7Layer2* link)
| attach |
[virtual]
Attach a SS7 Layer 2 (data link) to the network transport. Attach itself to the link
Parameters:
link | Pointer to data link to attach |
Reimplemented from SS7Layer3.
void detach (SS7Layer2* link)
| detach |
[virtual]
Detach a SS7 Layer 2 (data link) from the network transport. Remove the link's L2 user
Parameters:
link | Pointer to data link to detach |
Reimplemented from SignallingComponent.
bool control (NamedList& params)
| control |
[virtual]
Query or modify layer's settings or operational parameters
Parameters:
params | The list of parameters to query or change |
Returns: True if the control operation was executed
Reimplemented from SignallingComponent.
bool allowedTo (SS7PointCode::Type type, unsigned int packedPC)
| allowedTo |
[const virtual]
Check if access to a specific Point Code is allowed from this network
Parameters:
type | Destination point code type |
packedPC | The destination point code |
Returns: True if access to the specified Point Code is allowed
Reimplemented from SS7Layer3.
inline unsigned int linksTotal ()
| linksTotal |
[const]
Get the total number of links attached
Returns: Number of attached data links
inline unsigned int linksChecked ()
| linksChecked |
[const]
Get the number of links that are checked by maintenance
Returns: Number of MTN checked data links
inline unsigned int linksActive ()
| linksActive |
[const]
Get the number of links that are currently operational
Returns: Number of operational data links
inline const ObjList* links ()
| links |
[const]
Get a list of the links held by this linkset
Returns: A list containing the links
void destroyed ()
| destroyed |
[protected virtual]
Detach all links and user. Destroys the object, disposes the memory
Reimplemented from SignallingComponent.
void timerTick (const Time& when)
| timerTick |
[protected virtual]
Periodical timer tick used to perform housekeeping and link checking
Parameters:
when | Time to use as computing base for events and timeouts |
Reimplemented from SignallingComponent.
void linkChecked (int sls, bool remote)
| linkChecked |
[protected virtual]
Callback called from maintenance when valid SLTA or SLTM are received
Parameters:
sls | Link that was checked by maintenance |
remote | True if remote checked the link, false if local success |
Reimplemented from SS7Layer3.
bool responder ()
| responder |
[protected const virtual]
Check if we should answer with SLTA to received SLTM in maintenance()
Returns: True to send a SLTA for each good received SLTM
Reimplemented from SS7Layer3.
bool receivedMSU (const SS7MSU& msu, SS7Layer2* link, int sls)
| receivedMSU |
[protected virtual]
Process a MSU received from the Layer 2 component
Parameters:
msu | Message data, starting with Service Indicator Octet |
link | Data link that delivered the MSU |
sls | Signalling Link the MSU was received from |
Returns: True if the MSU was processed
Reimplemented from SS7Layer3.
bool recoveredMSU (const SS7MSU& msu, SS7Layer2* link, int sls)
| recoveredMSU |
[protected virtual]
Process a MSU recovered from the Layer 2 component after failure
Parameters:
msu | Message data, starting with Service Indicator Octet |
link | Data link from where the MSU was recovered |
sls | Signalling Link the MSU was recovered from |
Returns: True if the MSU was processed
Reimplemented from SS7Layer3.
void notify (SS7Layer2* link)
| notify |
[protected virtual]
Process a notification generated by the attached data link
Parameters:
link | Data link that generated the notification |
Returns: True if notification was processed
Reimplemented from SS7Layer3.
unsigned int countLinks ()
| countLinks |
[protected]
Count the total and active number of links
Returns: Number of active links
Generated by: paulc on bussard on Tue Apr 12 17:15:21 2011, using kdoc 2.0a54. |