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/***************************************************************************
sua_snm_mgnt.cpp - description
-------------------
begin : Tue Nov 4 2002
copyright : (C) 2002 by Lode Coene
email : lode.coene@siemens.atea.be
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
/*
* $Id: sua_snm_mgnt.cpp,v 1.6 2003/08/28 09:30:20 p82609 Exp $
*
* SUA implementation according to SUA draft issue 14.
*
* Author(s): Lode Coene
*
*
* Copyright (C) 2001 by Siemens Atea, Herentals, Belgium.
*
* Realized in co-operation between Siemens Atea and
* Siemens AG, Munich, Germany.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Contact: gery.verwimp@siemens.atea.be
* lode.coene@siemens.atea.be
*
* The alternative comment
* inspiration : Sabine
* "Due to small parts(Booleans), this code is not suitable for"
* "childeren under 3 years."
*
* Purpose: This code-file defines the SUA management handling functions for
* sending and receiving SignallingNetwork Management(SNM) messages:
* - send a Destination avialeble (DAVA) msg to remote node
* - Receive/process Destination Unavailable(DUNA) msg
* - Receive/process Destination Available(DAVA) msg
* - Receive/process Destination State audit(DAUD) msg
* - Receive/process Network congestion(SCON) msg
* - Receive/process Destination User Part Unavailable(DUPU) msg
* - Receive/process Destination Restricted(DRST) msg
*/
#include "sua_debug.h"
#include "sua_asp_mgnt.h"
#include "sua_database.h"
#include "sua_syntax.h"
#include "sua_logging.h"
#include "sua_tcb.h"
#include <cstdio>
#include <iostream>
#include <string>
using namespace std;
extern db_Sua_DatabaseList sua;
extern tcb_Sua_msgqueue_pool msg_store;
/***********************************************************************/
/* Sending SUA Signalling Network Management msg(SNM) */
/***********************************************************************/
/***********************************************************************/
/* sua_send_DAVA */
/***********************************************************************/
int sua_send_DAVA( unsigned int Sua_assoc_id,
SS7union pc
)
{
Sua_container msg;
Sua_syntax_error_struct error;
int error_value = 0;
int string_size, datalen;
signed int sctp_assoc_id;
short stream_id = 0;
int delivery_type, result;
// init the message
msg.sua_init();
// fill in the main sua header
msg.sua_prim.hdr_msg_class = sua_ssnm;
msg.sua_prim.hdr_msg_type.ssnm = ssnm_dava;
msg.sua_prim.ssnm_parm.aff_pc_pres = TRUE;
msg.sua_prim.ssnm_parm.aff_pc.num_aff_pc = 1;
msg.sua_prim.ssnm_parm.aff_pc.pc[0] = pc.ITU24.pc;
msg.sua_prim.info_pres = FALSE;
// encode the SUA DAVA message
error = msg.sua_encode();
string_size = msg.sua_msg.size();
delivery_type = SCTP_UNORDERED_DELIVERY;
sctp_assoc_id = sua.AssocDB.instance[Sua_assoc_id].SCTP_assoc_id;
/* does association exist? */
if (sctp_assoc_id > 0)
{
// send data to SCTP
char* databuf = new char[msg.sua_msg.length()];
msg.sua_msg.copy(databuf, msg.sua_msg.length());
datalen = msg.sua_msg.length();
/* yes it does, continue, no problem, send the msg */
#ifdef DEBUG
// display byte array
display_byte_array(databuf , msg.sua_msg.length());
#endif
char logstring[100];
sprintf(logstring, "SUA encoded message, ready for being send to SCTP assoc %d", sctp_assoc_id);
event_log("sua_snm_mgnt.c",logstring);
log_byte_array("sua_snm_mgnt.c", databuf,msg.sua_msg.length());
result = sctp_send ( sctp_assoc_id,
stream_id,
(unsigned char *) databuf,
datalen,
SUA_PPI,
SCTP_USE_PRIMARY,
SCTP_NO_CONTEXT,
SCTP_INFINITE_LIFETIME,
delivery_type,
SCTP_BUNDLING_DISABLED
);
error_value = result;
delete databuf;
#ifdef DEBUG
cout << "sua_asp_mgnt.c:result DAVA sctp send = "<< result << "\n";
#endif
}
return(error_value);
}
/***********************************************************************/
/* sua_send_DUNA */
/***********************************************************************/
int sua_send_DUNA( unsigned int Sua_assoc_id,
SS7union pc
)
{
Sua_container msg;
Sua_syntax_error_struct error;
int error_value = 0;
int string_size, datalen;
signed int sctp_assoc_id;
short stream_id = 0;
int delivery_type, result;
// init the message
msg.sua_init();
// fill in the main sua header
msg.sua_prim.hdr_msg_class = sua_ssnm;
msg.sua_prim.hdr_msg_type.ssnm = ssnm_duna;
msg.sua_prim.ssnm_parm.aff_pc_pres = TRUE;
msg.sua_prim.ssnm_parm.aff_pc.num_aff_pc = 1;
msg.sua_prim.ssnm_parm.aff_pc.pc[0] = pc.ITU24.pc;
msg.sua_prim.info_pres = FALSE;
// encode the SUA DAVA message
error = msg.sua_encode();
string_size = msg.sua_msg.size();
delivery_type = SCTP_UNORDERED_DELIVERY;
sctp_assoc_id = sua.AssocDB.instance[Sua_assoc_id].SCTP_assoc_id;
/* does association exist? */
if (sctp_assoc_id > 0)
{
// send data to SCTP
char* databuf = new char[msg.sua_msg.length()];
msg.sua_msg.copy(databuf, msg.sua_msg.length());
datalen = msg.sua_msg.length();
/* yes it does, continue, no problem, send the msg */
#ifdef DEBUG
// display byte array
display_byte_array(databuf , msg.sua_msg.length());
#endif
char logstring[100];
sprintf(logstring, "SUA encoded message, ready for being send to SCTP assoc %d", sctp_assoc_id);
event_log("sua_snm_mgnt.c",logstring);
log_byte_array("sua_snm_mgnt.c", databuf,msg.sua_msg.length());
result = sctp_send ( sctp_assoc_id,
stream_id,
(unsigned char *) databuf,
datalen,
SUA_PPI,
SCTP_USE_PRIMARY,
SCTP_NO_CONTEXT,
SCTP_INFINITE_LIFETIME,
delivery_type,
SCTP_BUNDLING_DISABLED
);
error_value = result;
delete databuf;
#ifdef DEBUG
cout << "sua_asp_mgnt.c:result DUNA sctp send = "<< result << "\n";
#endif
}
return(error_value);
}
/***********************************************************************/
/* sua_send_DAUD */
/***********************************************************************/
unsigned int sua_send_daud()
{
Sua_container msg;
Sua_syntax_error_struct error;
int i, error_value = 0;
int string_size, datalen;
signed int sctp_assoc_id, Sua_assoc_id;
short stream_id = 0;
int delivery_type, result;
SS7union pc;
i = 1;
while ( i <= sua.remote_sua.num_of_instance)
{
/* get pointcode from sua remote list */
pc = sua.remote_sua.instance[i].Dest.pc;
// init the message
msg.sua_init();
// fill in the main sua header
msg.sua_prim.hdr_msg_class = sua_ssnm;
msg.sua_prim.hdr_msg_type.ssnm = ssnm_daud;
msg.sua_prim.ssnm_parm.aff_pc_pres = TRUE;
msg.sua_prim.ssnm_parm.aff_pc.num_aff_pc = 1;
msg.sua_prim.ssnm_parm.aff_pc.pc[0] = pc.ITU24.pc;
msg.sua_prim.info_pres = FALSE;
// encode the SUA DAUD message
error = msg.sua_encode();
string_size = msg.sua_msg.size();
delivery_type = SCTP_UNORDERED_DELIVERY;
Sua_assoc_id = sua.remote_sua.instance[i].SUA_assoc_id;
sctp_assoc_id = sua.AssocDB.instance[Sua_assoc_id].SCTP_assoc_id;
/* does association exist? */
if (sctp_assoc_id > 0)
{
// send data to SCTP
char* databuf = new char[msg.sua_msg.length()];
msg.sua_msg.copy(databuf, msg.sua_msg.length());
datalen = msg.sua_msg.length();
/* yes it does, continue, no problem, send the msg */
#ifdef DEBUG
// display byte array
display_byte_array(databuf , msg.sua_msg.length());
#endif
char logstring[100];
sprintf(logstring, "SUA encoded message, ready for being send to SCTP assoc %d", sctp_assoc_id);
event_log("sua_snm_mgnt.c",logstring);
log_byte_array("sua_snm_mgnt.c", databuf,msg.sua_msg.length());
result = sctp_send ( sctp_assoc_id,
stream_id,
(unsigned char *) databuf,
datalen,
SUA_PPI,
SCTP_USE_PRIMARY,
SCTP_NO_CONTEXT,
SCTP_INFINITE_LIFETIME,
delivery_type,
SCTP_BUNDLING_DISABLED
);
error_value = error_value + result;
delete databuf;
#ifdef DEBUG
cout << "sua_asp_mgnt.c:result DAUD sctp send = "<< result << "\n";
#endif
}
/* go to next remote destination (if possible) */
i++;
}
return(error_value);
}
/***********************************************************************/
/* Receiving SUA Signalling Network Management msg */
/***********************************************************************/
/***********************************************************************/
/* sua_process_DUNA_msg */
/***********************************************************************/
int process_DUNA_msg ( unsigned int sua_assoc_id,
int local_sua_id,
int remote_sua_id,
Sua_container sua_ssnm_msg
)
{
int error_value = 0;
SS7union rec_pc;
int num_rec_pc;
rec_pc.ITU14.family = ITU14bit;
num_rec_pc = sua_ssnm_msg.sua_prim.ssnm_parm.aff_pc.num_aff_pc;
for ( int k = 0; k < num_rec_pc; k++)
{
rec_pc.ITU14.pc = sua_ssnm_msg.sua_prim.ssnm_parm.aff_pc.pc[k];
sua.remote_sua.Dest_Unavailable(rec_pc);
}
#ifdef DEBUG
cout << "sua_snm_mgnt.c:DUNA received, mark internal : no traffic to this destination.\n";
#endif
return(error_value);
}
/***********************************************************************/
/* sua_process_DAVA_msg */
/***********************************************************************/
int process_DAVA_msg ( unsigned int sua_assoc_id,
int local_sua_id,
int remote_sua_id,
Sua_container sua_ssnm_msg
)
{
int error_value = 0;
SS7union rec_pc;
int num_rec_pc;
rec_pc.ITU14.family = ITU14bit;
num_rec_pc = sua_ssnm_msg.sua_prim.ssnm_parm.aff_pc.num_aff_pc;
for ( int k = 0; k < num_rec_pc; k++)
{
rec_pc.ITU14.pc = sua_ssnm_msg.sua_prim.ssnm_parm.aff_pc.pc[k];
sua.remote_sua.Dest_Available(rec_pc);
}
#ifdef DEBUG
cout << "sua_snm_mgnt.c:DAVA received, mark internal: traffic can be send to this destination.\n";
#endif
return(error_value);
}
/***********************************************************************/
/* sua_process_DAUD_msg */
/***********************************************************************/
int process_DAUD_msg ( unsigned int sua_assoc_id,
int local_sua_id,
int remote_sua_id,
Sua_container sua_ssnm_msg
)
{
int error_value = 0;
SS7union rec_pc;
int num_rec_pc;
#ifdef DEBUG
cout << "sua_snm_mgnt.c:DAUD received, send back a DAVA, DUNA or DRST.\n";
#endif
rec_pc.ITU14.family = ITU14bit;
num_rec_pc = sua_ssnm_msg.sua_prim.ssnm_parm.aff_pc.num_aff_pc;
for ( int k = 0; k < num_rec_pc; k++)
{
rec_pc.ITU14.pc = sua_ssnm_msg.sua_prim.ssnm_parm.aff_pc.pc[k];
/* find the local sua with the specific received PC */
if ( !sua.local_sua.found(rec_pc))
{
/* if no local found, go through the remote sua's for */
/* the specific received PC */
if (ssnm_available != sua.remote_sua.get_Dest_status(rec_pc))
{
/* if not found, then pc is not reachable. */
/* let it be known to the requesting side */
error_value = sua_send_DUNA( sua_assoc_id ,
rec_pc
);
}
else
{
/* found the pc and it is accessible/reachable */
/* let it be known to the requesting side */
error_value = sua_send_DAVA( sua_assoc_id ,
rec_pc
);
}
}
else
{
/* found the pc and it is accessible/reachable */
/* let it be known to the requesting side */
error_value = sua_send_DAVA( sua_assoc_id ,
rec_pc
);
}
#ifdef DEBUG
cout << "sua_asp_mgnt.c:result send DUNA/DAVA/DRST = "<< error_value << "\n";
#endif
}
#ifdef DEBUG
cout << "sua_asp_mgnt.c:DAUD completely processed: " << num_rec_pc << " pointcodes\n";
#endif
return(error_value);
}
/***********************************************************************/
/* sua_process_SCON_msg */
/***********************************************************************/
int process_SCON_msg ( unsigned int sua_assoc_id,
int local_sua_id,
int remote_sua_id,
Sua_container sua_asp_msg
)
{
int error_value = 0;
#ifdef DEBUG
cout << "sua_snm_mgnt.c:SCON received, ignore.\n";
#endif
return(error_value);
}
/***********************************************************************/
/* sua_process_DUPU_msg */
/***********************************************************************/
int process_DUPU_msg ( unsigned int sua_assoc_id,
int local_sua_id,
int remote_sua_id,
Sua_container sua_asp_msg
)
{
int error_value = 0;
#ifdef DEBUG
cout << "sua_snm_mgnt.c:DUPU received.\n";
#endif
return(error_value);
}
/***********************************************************************/
/* sua_process_DRST_msg */
/***********************************************************************/
int process_DRST_msg ( unsigned int sua_assoc_id,
int local_sua_id,
int remote_sua_id,
Sua_container sua_asp_msg
)
{
int error_value = 0;
#ifdef DEBUG
cout << "sua_snm_mgnt.c:DRST received.\n";
#endif
return(error_value);
}
//end of module sua_asp_mgnt.c++
|
