void sngisdn_snd_connect(ftdm_channel_t *ftdmchan)
{
CnStEvnt cnStEvnt;
sngisdn_chan_data_t *sngisdn_info = (sngisdn_chan_data_t*) ftdmchan->call_data;
sngisdn_span_data_t *signal_data = (sngisdn_span_data_t*) ftdmchan->span->signal_data;
ftdm_sngisdn_progind_t prog_ind = {SNGISDN_PROGIND_LOC_USER, SNGISDN_PROGIND_DESCR_NETE_ISDN};
if (sngisdn_test_flag(sngisdn_info, FLAG_SENT_CONNECT)) {
return;
}
sngisdn_set_flag(sngisdn_info, FLAG_SENT_CONNECT);
if (!sngisdn_info->suInstId || !sngisdn_info->spInstId) {
ftdm_log_chan(ftdmchan, FTDM_LOG_ERROR, "Sending CONNECT, but no call data, aborting (suId:%d suInstId:%u spInstId:%u)\n", signal_data->cc_id, sngisdn_info->suInstId, sngisdn_info->spInstId);
sngisdn_set_flag(sngisdn_info, FLAG_LOCAL_ABORT);
ftdm_set_state_locked(ftdmchan, FTDM_CHANNEL_STATE_TERMINATING);
return;
}
memset(&cnStEvnt, 0, sizeof(cnStEvnt));
/* Indicate channel ID only in first response */
if (!ftdm_test_flag(sngisdn_info, FLAG_SENT_CHAN_ID)) {
set_chan_id_ie(ftdmchan, &cnStEvnt.chanId);
}
set_prog_ind_ie(ftdmchan, &cnStEvnt.progInd, prog_ind);
set_facility_ie(ftdmchan, &cnStEvnt.facilityStr);
ftdm_log_chan(ftdmchan, FTDM_LOG_INFO, "Sending CONNECT (suId:%d suInstId:%u spInstId:%u dchan:%d ces:%d)\n", signal_data->cc_id, sngisdn_info->suInstId, sngisdn_info->spInstId, sngisdn_dchan(signal_data)->link_id, sngisdn_info->ces);
if (sng_isdn_con_response(signal_data->cc_id, sngisdn_info->suInstId, sngisdn_info->spInstId, &cnStEvnt, sngisdn_dchan(signal_data)->link_id, sngisdn_info->ces)) {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_CRIT, "stack refused CONNECT request\n");
}
return;
}
void sngisdn_process_rel_ind (sngisdn_event_data_t *sngisdn_event)
{
ISDN_FUNC_TRACE_ENTER(__FUNCTION__);
int16_t suId = sngisdn_event->suId;
uint32_t suInstId = sngisdn_event->suInstId;
uint32_t spInstId = sngisdn_event->spInstId;
sngisdn_chan_data_t *sngisdn_info = sngisdn_event->sngisdn_info;
ftdm_channel_t *ftdmchan = sngisdn_info->ftdmchan;
RelEvnt *relEvnt = &sngisdn_event->event.relEvnt;
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "Processing RELEASE/RELEASE COMPLETE (suId:%u suInstId:%u spInstId:%u)\n", suId, suInstId, spInstId);
ftdm_assert(!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_STATE_CHANGE), "State change flag pending\n");
if ((suInstId && (sngisdn_info->glare.suInstId == suInstId)) ||
(spInstId && (sngisdn_info->glare.spInstId == spInstId))) {
/* This hangup is for a glared saved call */
ftdm_clear_flag(sngisdn_info, FLAG_DELAYED_REL);
clear_call_glare_data(sngisdn_info);
ISDN_FUNC_TRACE_EXIT(__FUNCTION__);
return;
}
/* check whether the ftdm channel is in a state to accept a call */
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_HANGUP_COMPLETE:
/* go to DOWN */
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_DOWN);
break;
case FTDM_CHANNEL_STATE_DOWN:
/* do nothing, just drop the message */
break;
case FTDM_CHANNEL_STATE_DIALING:
/* Remote side rejected our SETUP message on outbound call */
if (!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_SIG_UP)) {
sng_isdn_set_avail_rate(ftdmchan->span, SNGISDN_AVAIL_DOWN);
}
/* fall-through */
case FTDM_CHANNEL_STATE_PROGRESS:
case FTDM_CHANNEL_STATE_PROGRESS_MEDIA:
case FTDM_CHANNEL_STATE_UP:
case FTDM_CHANNEL_STATE_RING:
/* If we previously had a glare on this channel,
this RELEASE could be for the previous call. Confirm whether call_data has
not changed while we were waiting for ftdmchan->mutex by comparing suInstId's */
if (((sngisdn_chan_data_t*)ftdmchan->call_data)->suInstId == suInstId ||
((sngisdn_chan_data_t*)ftdmchan->call_data)->spInstId == spInstId) {
if (relEvnt->causeDgn[0].eh.pres && relEvnt->causeDgn[0].causeVal.pres) {
ftdmchan->caller_data.hangup_cause = relEvnt->causeDgn[0].causeVal.val;
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "cause:%d\n", ftdmchan->caller_data.hangup_cause);
} else {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_WARNING, "RELEASE COMPLETE did not have a cause code\n");
ftdmchan->caller_data.hangup_cause = 0;
}
sngisdn_set_flag(sngisdn_info, FLAG_REMOTE_ABORT);
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_TERMINATING);
} else {
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "RELEASE was for previous call (suInstId:%u spInstId:%u)\n", suInstId, spInstId);
}
break;
case FTDM_CHANNEL_STATE_COLLECT:
case FTDM_CHANNEL_STATE_GET_CALLERID:
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_CANCEL);
break;
case FTDM_CHANNEL_STATE_TERMINATING:
if (sngisdn_test_flag(sngisdn_info, FLAG_GLARE) &&
sngisdn_info->glare.suInstId != suInstId) {
/* This release if for the outbound call that we already started clearing */
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "Received RELEASE for local glared call\n");
sngisdn_set_flag(sngisdn_info, FLAG_REMOTE_ABORT);
} else {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_WARNING, "Received release before we could clear local call\n");
/* FS core took too long to respond to the SIG STOP event */
sngisdn_set_flag(sngisdn_info, FLAG_REMOTE_ABORT);
/* set abort flag so that we do not transmit another release complete on this channel once FS core is done */
}
break;
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Received RELEASE in an invalid state (%s)\n",
ftdm_channel_state2str(ftdmchan->state));
break;
}
ISDN_FUNC_TRACE_EXIT(__FUNCTION__);
return;
}
/* Remote side transmit a SETUP */
void sngisdn_process_con_ind (sngisdn_event_data_t *sngisdn_event)
{
ISDN_FUNC_TRACE_ENTER(__FUNCTION__);
int16_t suId = sngisdn_event->suId;
uint32_t suInstId = sngisdn_event->suInstId;
uint32_t spInstId = sngisdn_event->spInstId;
int16_t dChan = sngisdn_event->dChan;
uint8_t ces = sngisdn_event->ces;
sngisdn_chan_data_t *sngisdn_info = sngisdn_event->sngisdn_info;
ftdm_channel_t *ftdmchan = sngisdn_info->ftdmchan;
sngisdn_span_data_t *signal_data = (sngisdn_span_data_t*) ftdmchan->span->signal_data;
ConEvnt *conEvnt = &sngisdn_event->event.conEvnt;
ftdm_assert(!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_STATE_CHANGE), "State change flag pending\n");
ftdm_log_chan(sngisdn_info->ftdmchan, FTDM_LOG_DEBUG, "Processing SETUP (suId:%u suInstId:%u spInstId:%u)\n", suId, suInstId, spInstId);
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_DOWN: /* Proper state to receive a SETUP */
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_INUSE) ||
ftdm_channel_open_chan(ftdmchan) != FTDM_SUCCESS) {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_INFO, "Received SETUP but channel is in USE, saving call for later processing\n");
/* the flag the channel as having a collision */
sngisdn_set_flag(sngisdn_info, FLAG_GLARE);
/* save the SETUP for processing once the channel has gone to DOWN */
memcpy(&sngisdn_info->glare.setup, conEvnt, sizeof(*conEvnt));
sngisdn_info->glare.suId = suId;
sngisdn_info->glare.suInstId = suInstId; /* Do not generate a suInstId now, we will generate when glared call gets extracted */
sngisdn_info->glare.spInstId = spInstId;
sngisdn_info->glare.dChan = dChan;
sngisdn_info->glare.ces = ces;
break;
}
sngisdn_info->suInstId = get_unique_suInstId(suId);
sngisdn_info->spInstId = spInstId;
/* If this is a glared call that was previously saved, we moved
all the info to the current call, so clear the glared saved data */
if (sngisdn_info->glare.spInstId == spInstId) {
clear_call_glare_data(sngisdn_info);
}
ftdm_mutex_lock(g_sngisdn_data.ccs[suId].mutex);
g_sngisdn_data.ccs[suId].active_suInstIds[sngisdn_info->suInstId] = sngisdn_info;
ftdm_mutex_unlock(g_sngisdn_data.ccs[suId].mutex);
ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_OUTBOUND);
if (ftdmchan->span->trunk_type == FTDM_TRUNK_BRI_PTMP &&
signal_data->signalling == SNGISDN_SIGNALING_NET) {
sngisdn_info->ces = ces;
}
/* try to open the channel */
if (ftdm_channel_open_chan(ftdmchan) != FTDM_SUCCESS) {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_CRIT, "Failed to open channel");
sngisdn_set_flag(sngisdn_info, FLAG_LOCAL_REL);
ftdmchan->caller_data.hangup_cause = FTDM_CAUSE_NORMAL_TEMPORARY_FAILURE;
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_CANCEL);
break;
}
#if 0
/* Export ftdmchan variables here if we need to */
ftdm_channel_add_var(ftdmchan, "isdn_specific_var", "1");
ftdm_channel_add_var(ftdmchan, "isdn_crap", "morecrap");
ftdm_channel_add_var(ftdmchan, "isdn_stuff", "s");
ftdm_channel_add_var(ftdmchan, "isdn_d", "asdsadasdasdsad");
#endif
/* Fill in call information */
cpy_calling_num_from_stack(&ftdmchan->caller_data, &conEvnt->cgPtyNmb);
cpy_called_num_from_stack(&ftdmchan->caller_data, &conEvnt->cdPtyNmb);
cpy_calling_name_from_stack(&ftdmchan->caller_data, &conEvnt->display);
if (conEvnt->bearCap[0].eh.pres) {
ftdmchan->caller_data.bearer_layer1 = sngisdn_get_infoTranCap_from_stack(conEvnt->bearCap[0].usrInfoLyr1Prot.val);
ftdmchan->caller_data.bearer_capability = sngisdn_get_infoTranCap_from_stack(conEvnt->bearCap[0].infoTranCap.val);
}
if (signal_data->switchtype == SNGISDN_SWITCH_NI2) {
if (conEvnt->shift11.eh.pres && conEvnt->ni2OctStr.eh.pres) {
if (conEvnt->ni2OctStr.str.len == 4 && conEvnt->ni2OctStr.str.val[0] == 0x37) {
snprintf(ftdmchan->caller_data.aniII, 5, "%.2d", conEvnt->ni2OctStr.str.val[3]);
}
}
if (signal_data->facility == SNGISDN_OPT_TRUE && conEvnt->facilityStr.eh.pres) {
/* Verify whether the Caller Name will come in a subsequent FACILITY message */
uint16_t ret_val;
char retrieved_str[255];
ret_val = sng_isdn_retrieve_facility_caller_name(conEvnt->facilityStr.facilityStr.val, conEvnt->facilityStr.facilityStr.len, retrieved_str);
/*
return values for "sng_isdn_retrieve_facility_information_following":
If there will be no information following, or fails to decode IE, returns -1
If there will be no information following, but current FACILITY IE contains a caller name, returns 0
If there will be information following, returns 1
*/
if (ret_val == 1) {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "Expecting Caller name in FACILITY\n");
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_GET_CALLERID);
/* Launch timer in case we never get a FACILITY msg */
if (signal_data->facility_timeout) {
ftdm_sched_timer(signal_data->sched, "facility_timeout", signal_data->facility_timeout,
sngisdn_facility_timeout, (void*) sngisdn_info, &sngisdn_info->timers[SNGISDN_TIMER_FACILITY]);
}
break;
} else if (ret_val == 0) {
strcpy(ftdmchan->caller_data.cid_name, retrieved_str);
}
}
}
if (signal_data->overlap_dial == SNGISDN_OPT_TRUE && !conEvnt->sndCmplt.eh.pres) {
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_COLLECT);
} else {
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RING);
}
break;
case FTDM_CHANNEL_STATE_TERMINATING:
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_INFO, "Processing SETUP in TERMINATING state, saving SETUP info for later processing\n");
ftdm_assert(!sngisdn_test_flag(sngisdn_info, FLAG_GLARE), "Trying to save GLARE info, but we already had a glare\n");
sngisdn_set_flag(sngisdn_info, FLAG_GLARE);
/* save the SETUP for processing once the channel has gone to DOWN */
memcpy(&sngisdn_info->glare.setup, conEvnt, sizeof(*conEvnt));
sngisdn_info->glare.suId = suId;
sngisdn_info->glare.suInstId = suInstId; /* Do not generate a suInstId now, we will generate when glared call gets extracted */
sngisdn_info->glare.spInstId = spInstId;
sngisdn_info->glare.dChan = dChan;
sngisdn_info->glare.ces = ces;
break;
case FTDM_CHANNEL_STATE_DIALING: /* glare */
if (signal_data->signalling == SNGISDN_SIGNALING_NET) {
/* Save inbound call info so we can send a RELEASE when this channel goes to a different state */
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_WARNING, "Processing SETUP in DIALING state, rejecting inbound call\n");
sngisdn_set_flag(sngisdn_info, FLAG_DELAYED_REL);
sngisdn_info->glare.suId = suId;
sngisdn_info->glare.suInstId = get_unique_suInstId(suId);
sngisdn_info->glare.spInstId = spInstId;
sngisdn_info->glare.dChan = dChan;
sngisdn_info->glare.ces = ces;
ftdmchan->caller_data.hangup_cause = 0x2C; /* Channel requested not available */
ftdm_sched_timer(signal_data->sched, "delayed_release", 1, sngisdn_delayed_release, (void*) sngisdn_info, NULL);
} else {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_INFO, "Processing SETUP in DIALING state, saving SETUP info for later processing\n");
/* the flag the channel as having a collision */
ftdm_assert(!sngisdn_test_flag(sngisdn_info, FLAG_GLARE), "Trying to save GLARE info, but we already had a glare");
sngisdn_set_flag(sngisdn_info, FLAG_GLARE);
/* save the SETUP for processing once the channel has gone to DOWN */
memcpy(&sngisdn_info->glare.setup, conEvnt, sizeof(*conEvnt));
sngisdn_info->glare.suId = suId;
sngisdn_info->glare.suInstId = suInstId; /* Do not generate a suInstId now, we will generate when glared call gets extracted */
sngisdn_info->glare.spInstId = spInstId;
sngisdn_info->glare.dChan = dChan;
sngisdn_info->glare.ces = ces;
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_TERMINATING);
}
break;
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Processing SETUP in an invalid state (%s)\n", ftdm_channel_state2str(ftdmchan->state));
break;
}
ISDN_FUNC_TRACE_EXIT(__FUNCTION__);
return;
}