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/*
The oSIP library implements the Session Initiation Protocol (SIP -rfc3261-)
Copyright (C) 2001,2002,2003 Aymeric MOIZARD jack@atosc.org
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <osip/port.h>
#include <osip/osip.h>
#include "fsm.h"
int
nict_init (nict_t ** nict, osip_t * osip, sip_t * request)
{
route_t *route;
int i;
time_t now;
OSIP_TRACE (osip_trace
(__FILE__, __LINE__, OSIP_INFO2, NULL,
"allocating NICT context\n"));
*nict = (nict_t *) smalloc (sizeof (nict_t));
if (*nict == NULL)
return -1;
now = time (NULL);
#ifndef DISABLE_MEMSET
memset (*nict, 0, sizeof (nict_t));
#else
(*ict)->destination = NULL;
#endif
/* for REQUEST retransmissions */
{
via_t *via;
char *proto;
i = msg_getvia (request, 0, &via); /* get top via */
if (i != 0)
goto ii_error_1;
proto = via_getprotocol (via);
if (proto == NULL)
goto ii_error_1;
#ifndef WIN32
i = strncasecmp (proto, "TCP", 3);
#else
i = _stricmp (proto, "TCP");
#endif
if (i != 0)
{ /* for other reliable protocol than TCP, the timer
must be desactived by the external application */
(*nict)->timer_e_length = DEFAULT_T1;
(*nict)->timer_e_start = now; /* started */
(*nict)->timer_k_length = DEFAULT_T4;
(*nict)->timer_k_start = -1; /* not started */
}
else
{ /* TCP is used: */
(*nict)->timer_e_length = -1; /* E is not ACTIVE */
(*nict)->timer_e_start = -1;
(*nict)->timer_k_length = 0; /* MUST do the transition immediatly */
(*nict)->timer_k_start = -1; /* not started */
}
}
/* for PROXY, the destination MUST be set by the application layer,
this one may not be correct. */
msg_getroute (request, 0, &route);
if (route != NULL)
{
int port = 5060;
if (route->url->port != NULL)
port = satoi (route->url->port);
nict_set_destination ((*nict), sgetcopy (route->url->host), port);
}
else
(*nict)->port = 5060;
(*nict)->timer_f_length = 64 * DEFAULT_T1;
(*nict)->timer_f_start = now; /* started */
/* Oups! a Bug! */
/* (*nict)->port = 5060; */
return 0;
ii_error_1:
sfree (*nict);
return -1;
}
int
nict_free (nict_t * nict)
{
if (nict == NULL)
return -1;
OSIP_TRACE (osip_trace
(__FILE__, __LINE__, OSIP_INFO2, NULL,
"free nict ressource\n"));
sfree (nict->destination);
return 0;
}
int
nict_set_destination (nict_t * nict, char *destination, int port)
{
if (nict == NULL)
return -1;
if (nict->destination != NULL)
sfree (nict->destination);
nict->destination = destination;
nict->port = port;
return 0;
}
sipevent_t *
nict_need_timer_e_event (nict_t * nict, state_t state, int transactionid)
{
time_t now = time (NULL);
if (nict == NULL)
return NULL;
if (state == NICT_PROCEEDING || state == NICT_TRYING)
{
if (nict->timer_e_start == -1)
return NULL;
if ((now - nict->timer_e_start - 1) * 1000 > nict->timer_e_length)
return osip_new_event (TIMEOUT_E, transactionid);
}
return NULL;
}
sipevent_t *
nict_need_timer_f_event (nict_t * nict, state_t state, int transactionid)
{
time_t now = time (NULL);
if (nict == NULL)
return NULL;
if (state == NICT_PROCEEDING || state == NICT_TRYING)
{
if (nict->timer_f_start == -1)
return NULL;
if ((now - nict->timer_f_start - 1) * 1000 > nict->timer_f_length)
return osip_new_event (TIMEOUT_F, transactionid);
}
return NULL;
}
sipevent_t *
nict_need_timer_k_event (nict_t * nict, state_t state, int transactionid)
{
time_t now = time (NULL);
if (nict == NULL)
return NULL;
if (state == NICT_COMPLETED)
{
if (nict->timer_k_start == -1)
return NULL;
if ((now - nict->timer_k_start - 1) * 1000 > nict->timer_k_length)
return osip_new_event (TIMEOUT_K, transactionid);
}
return NULL;
}
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