void sngisdn_snd_event(sngisdn_span_data_t *signal_data, ftdm_oob_event_t event)
{
sng_l1_event_t l1_event;
if (!signal_data->dchan) {
return;
}
memset(&l1_event, 0, sizeof(l1_event));
switch(event) {
case FTDM_OOB_ALARM_CLEAR:
l1_event.type = SNG_L1EVENT_ALARM_OFF;
sng_isdn_event_ind(signal_data->link_id, &l1_event);
if (!signal_data->dl_request_pending) {
signal_data->dl_request_pending = 1;
ftdm_sched_timer(signal_data->sched, "delayed_dl_req", 8000, sngisdn_delayed_dl_req, (void*) signal_data, NULL);
}
break;
case FTDM_OOB_ALARM_TRAP:
l1_event.type = SNG_L1EVENT_ALARM_ON;
sng_isdn_event_ind(signal_data->link_id, &l1_event);
break;
default:
/* We do not care about the other OOB events for now */
return;
}
return;
}
void sngisdn_set_chan_sig_status(ftdm_channel_t *ftdmchan, ftdm_signaling_status_t status)
{
ftdm_sigmsg_t sig;
sngisdn_span_data_t *signal_data = (sngisdn_span_data_t*)ftdmchan->span->signal_data;
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "Signalling link status changed to %s\n", ftdm_signaling_status2str(status));
memset(&sig, 0, sizeof(sig));
sig.chan_id = ftdmchan->chan_id;
sig.span_id = ftdmchan->span_id;
sig.channel = ftdmchan;
sig.event_id = FTDM_SIGEVENT_SIGSTATUS_CHANGED;
sig.ev_data.sigstatus.status = status;
ftdm_span_send_signal(ftdmchan->span, &sig);
if (FTDM_SPAN_IS_BRI(ftdmchan->span)) {
sngisdn_chan_data_t *sngisdn_info = ftdmchan->call_data;
if (ftdm_test_flag(sngisdn_info, FLAG_ACTIVATING)) {
ftdm_clear_flag(sngisdn_info, FLAG_ACTIVATING);
ftdm_sched_timer(signal_data->sched, "delayed_setup", 1000, sngisdn_delayed_setup, (void*) sngisdn_info, NULL);
}
}
return;
}
int main(int argc, char *argv[])
{
ftdm_status_t status;
custom_data_t data;
ftdm_sched_t *sched;
signal(SIGINT, trap);
ftdm_global_set_default_logger(FTDM_LOG_LEVEL_DEBUG);
ftdm_cpu_monitor_disable();
if (ftdm_global_init() != FTDM_SUCCESS) {
fprintf(stderr, "Error loading FreeTDM\n");
exit(-1);
}
status = ftdm_sched_create(&sched, "testsched");
if (status != FTDM_SUCCESS) {
fprintf(stderr, "Error creating sched\n");
exit(-1);
}
data.sched = sched;
data.counter = 10;
data.beat = 5000;
data.callback = handle_heartbeat;
status = ftdm_sched_timer(sched, "heartbeat", data.beat, data.callback, &data, &data.heartbeat_timer);
if (status != FTDM_SUCCESS) {
fprintf(stderr, "Error creating heartbeat timer\n");
exit(-1);
}
ftdm_sched_free_run(sched);
while (running) {
ftdm_sleep(10);
}
ftdm_global_destroy();
printf("Done, press any key to die!\n");
getchar();
return 0;
}
void handle_heartbeat(void *usrdata)
{
ftdm_status_t status;
custom_data_t *data = usrdata;
printf("beep (elapsed %dms count= %d)\n", data->beat, data->counter);
if (data->beat > 1000) {
data->beat -= 1000;
} else if (data->beat <= 1000 && data->beat > 200) {
data->beat -= 100;
} else if (data->beat <= 200 && data->beat > 100) {
if (!data->counter--) {
data->counter = 5;
data->beat -= 100;
}
} else if (data->beat <= 100 && data->beat > 10) {
if (!data->counter--) {
data->counter = 10;
data->beat -= 10;
if (data->beat == 10) {
data->counter = 200;
}
}
} else {
if (!data->counter--) {
data->counter = 5;
data->beat--;
}
}
if (!data->beat) {
printf("beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeep you're dead!\n");
return;
}
data->heartbeat_timer = NULL;
status = ftdm_sched_timer(data->sched, "heartbeat", data->beat, data->callback, data, &data->heartbeat_timer);
if (status != FTDM_SUCCESS) {
fprintf(stderr, "Error creating heartbeat timer\n");
running = 0;
return;
}
}
void sngisdn_process_sta_cfm (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;
StaEvnt *staEvnt = &sngisdn_event->event.staEvnt;
uint8_t call_state = 0;
if (staEvnt->callSte.eh.pres && staEvnt->callSte.callGlblSte.pres) {
call_state = staEvnt->callSte.callGlblSte.val;
}
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "Processing STATUS CONFIRM (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 (staEvnt->causeDgn[0].eh.pres && staEvnt->causeDgn[0].causeVal.pres) {
if (staEvnt->callSte.eh.pres && staEvnt->callSte.callGlblSte.pres) {
call_state = staEvnt->callSte.callGlblSte.val;
} else {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_WARNING, "Received STATUS without call state\n");
ISDN_FUNC_TRACE_EXIT(__FUNCTION__);
return;
}
switch (staEvnt->causeDgn[0].causeVal.val) {
case FTDM_CAUSE_RESPONSE_TO_STATUS_ENQUIRY:
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "Status Check OK:%d", call_state);
ISDN_FUNC_TRACE_EXIT(__FUNCTION__);
return;
case FTDM_CAUSE_WRONG_CALL_STATE:
ftdm_log_chan(ftdmchan, FTDM_LOG_WARNING, "Message incompatible with call state (call_state:%d channel-state:%s cause:%d) (suId:%u suInstId:%u spInstId:%u)\n", call_state, ftdm_channel_state2str(ftdmchan->state), staEvnt->causeDgn[0].causeVal.val, suId, suInstId, spInstId);
break;
case FTDM_CAUSE_RECOVERY_ON_TIMER_EXPIRE:
ftdm_log_chan(ftdmchan, FTDM_LOG_WARNING, "Recovery on timer expire (call_state:%d channel-state:%s cause:%d) (suId:%u suInstId:%u spInstId:%u)\n", call_state, ftdm_channel_state2str(ftdmchan->state), staEvnt->causeDgn[0].causeVal.val, suId, suInstId, spInstId);
break;
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_WARNING, "STATUS CONFIRM (call_state:%d channel-state:%s cause:%d) (suId:%u suInstId:%u spInstId:%u)\n", call_state, ftdm_channel_state2str(ftdmchan->state), staEvnt->causeDgn[0].causeVal.val, suId, suInstId, spInstId);
break;
}
/* Section 4.3.30 from INT Interface - Service Definition */
ftdmchan->caller_data.hangup_cause = staEvnt->causeDgn[0].causeVal.val;
switch(call_state) {
/* Sere ITU-T Q931 for definition of call states */
case 0: /* Remote switch thinks there are no calls on this channel */
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_COLLECT:
case FTDM_CHANNEL_STATE_DIALING:
case FTDM_CHANNEL_STATE_UP:
sngisdn_set_flag(sngisdn_info, FLAG_REMOTE_ABORT);
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_TERMINATING);
break;
case FTDM_CHANNEL_STATE_TERMINATING:
/* We are in the process of clearing local states,
just make sure we will not send any messages to remote switch */
sngisdn_set_flag(sngisdn_info, FLAG_REMOTE_ABORT);
break;
case FTDM_CHANNEL_STATE_HANGUP:
/* This cannot happen, state_advance always sets
ftdmchan to STATE_HANGUP_COMPLETE when in STATE_HANGUP
and we called check_for_state_change earlier so something is very wrong here!!! */
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_CRIT, "How can we we in FTDM_CHANNEL_STATE_HANGUP after checking for state change?\n");
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_DOWN);
break;
case FTDM_CHANNEL_STATE_HANGUP_COMPLETE:
/* We were waiting for remote switch to send RELEASE COMPLETE
but this will not happen, so just clear local state */
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_DOWN);
break;
case FTDM_CHANNEL_STATE_DOWN:
/* If our local state is down as well, then there is nothing to do */
break;
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Don't know how to handle incompatible state. remote call state:%d our state:%s\n", call_state, ftdm_channel_state2str(ftdmchan->state));
break;
}
break;
case 1:
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_UP:
/* Remote side is still waiting for our CONNECT message */
if (!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_OUTBOUND)) {
ftdm_sched_timer(((sngisdn_span_data_t*)ftdmchan->span->signal_data)->sched, "delayed_connect", 1, sngisdn_delayed_connect, (void*) sngisdn_info, NULL);
break;
}
/* Fall-through */
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Don't know how to handle incompatible state. remote call state:%d our state:%s\n", call_state, ftdm_channel_state2str(ftdmchan->state));
break;
}
break;
case 2: /* overlap sending/receiving */
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_COLLECT:
/* T302 Timeout reached */
/* Send the call to user, and see if they accept it */
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "T302 Timer expired, proceeding with call\n");
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RING);
break;
case FTDM_CHANNEL_STATE_PROGRESS:
case FTDM_CHANNEL_STATE_PROGRESS_MEDIA:
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_WARNING, "Remote switch expecting OVERLAP receive, but we are already PROCEEDING\n");
sngisdn_snd_disconnect(ftdmchan);
break;
case FTDM_CHANNEL_STATE_DOWN:
case FTDM_CHANNEL_STATE_HANGUP_COMPLETE:
/* We hung up locally, but remote switch doesn't know send disconnect again*/
sngisdn_snd_disconnect(ftdmchan);
break;
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Don't know how to handle incompatible state. remote call state:%d our state:%s\n", call_state, ftdm_channel_state2str(ftdmchan->state));
break;
}
break;
case 3:
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_PROGRESS:
/* T310 timer has expired */
ftdmchan->caller_data.hangup_cause = staEvnt->causeDgn[0].causeVal.val;
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "T310 Timer expired, hanging up call\n");
sngisdn_set_flag(sngisdn_info, FLAG_SEND_DISC);
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_TERMINATING);
break;
case FTDM_CHANNEL_STATE_UP:
/* Remote side is still waiting for our CONNECT message */
if (!ftdm_test_flag(ftdmchan, FTDM_CHANNEL_OUTBOUND)) {
ftdm_sched_timer(((sngisdn_span_data_t*)ftdmchan->span->signal_data)->sched, "delayed_connect", 1, sngisdn_delayed_connect, (void*) sngisdn_info, NULL);
break;
}
/* Fall-through */
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Don't know how to handle incompatible state. remote call state:%d our state:%s\n", call_state, ftdm_channel_state2str(ftdmchan->state));
break;
}
break;
case 8: /* Remote switch is in "Connect Request state" */
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_UP:
/* This is ok. We sent a Connect, and we are waiting for a connect ack */
/* Do nothing */
break;
case FTDM_CHANNEL_STATE_HANGUP_COMPLETE:
/* We hung up locally, but remote switch doesn't know send disconnect again*/
sngisdn_snd_disconnect(ftdmchan);
break;
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Don't know how to handle incompatible state. remote call state:%d our state:%s\n", call_state, ftdm_channel_state2str(ftdmchan->state));
break;
}
break;
case 9: /* Remote switch is in "Incoming call proceeding" state */
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_PROGRESS:
case FTDM_CHANNEL_STATE_PROGRESS_MEDIA:
case FTDM_CHANNEL_STATE_GET_CALLERID:
/* Do nothing */
break;
case FTDM_CHANNEL_STATE_UP:
/* Remote switch missed our CONNECT message, re-send */
ftdm_sched_timer(((sngisdn_span_data_t*)ftdmchan->span->signal_data)->sched, "delayed_connect", 1, sngisdn_delayed_connect, (void*) sngisdn_info, NULL);
break;
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Don't know how to handle incompatible state. remote call state:%d our state:%s\n", call_state, ftdm_channel_state2str(ftdmchan->state));
break;
}
break;
case 10: /* Remote switch is in active state */
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_UP:
/* This is ok, they are in active state and we are in active state */
/* Do nothing */
break;
case FTDM_CHANNEL_STATE_HANGUP_COMPLETE:
/* We sent a disconnect message, but remote side missed it ? */
ftdm_sched_timer(((sngisdn_span_data_t*)ftdmchan->span->signal_data)->sched, "delayed_disconnect", 1, sngisdn_delayed_disconnect, (void*) sngisdn_info, NULL);
break;
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Don't know how to handle incompatible state. remote call state:%d our state:%s\n", call_state, ftdm_channel_state2str(ftdmchan->state));
break;
}
break;
case 22:
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_UP:
/* Stack is in the process of clearing the call*/
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_TERMINATING);
break;
case FTDM_CHANNEL_STATE_HANGUP_COMPLETE:
/* Do nothing as we will get a RELEASE COMPLETE */
break;
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Don't know how to handle incompatible state. remote call state:%d our state:%s\n", call_state, ftdm_channel_state2str(ftdmchan->state));
//ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
break;
}
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_CRIT, "Don't know how to handle incompatible state. remote call state:%d our state:%s\n", call_state, ftdm_channel_state2str(ftdmchan->state));
//ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
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;
}
static ftdm_status_t att_courtesy_vru(ftdm_channel_t *ftdmchan, sngisdn_transfer_type_t type, char* args)
{
char dtmf_digits[64];
ftdm_status_t status = FTDM_FAIL;
sngisdn_chan_data_t *sngisdn_info = ftdmchan->call_data;
sngisdn_span_data_t *signal_data = (sngisdn_span_data_t*) ftdmchan->span->signal_data;
char *p = args;
uint8_t forced_answer = 0;
switch (signal_data->switchtype) {
case SNGISDN_SWITCH_5ESS:
case SNGISDN_SWITCH_4ESS:
break;
default:
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_ERROR, "AT&T Courtesy Transfer not supported for switchtype\n");
return FTDM_FAIL;
}
while (!ftdm_strlen_zero(p)) {
if (!isdigit(*p) && *p != 'w' && *p != 'W') {
ftdm_log_chan(ftdmchan, FTDM_LOG_ERROR, "Cannot transfer to non-numeric number:%s\n", args);
return FTDM_FAIL;
}
p++;
}
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "Performing AT&T Courtesy Transfer-VRU%s to %s\n", (type == SNGISDN_TRANSFER_ATT_COURTESY_VRU_DATA) ?"--data" : "", args);
sprintf(dtmf_digits, "*8w%s", args);
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "Sending digits %s\n", dtmf_digits);
switch (ftdmchan->last_state) {
case FTDM_CHANNEL_STATE_PROCEED:
case FTDM_CHANNEL_STATE_PROGRESS:
case FTDM_CHANNEL_STATE_PROGRESS_MEDIA:
/* Call has to be in answered state - so send a CONNECT message if we did not answer this call yet */
forced_answer++;
sngisdn_snd_connect(ftdmchan);
/* fall-through */
case FTDM_CHANNEL_STATE_UP:
memset(&sngisdn_info->transfer_data.tdata.att_courtesy_vru.dtmf_digits, 0, sizeof(sngisdn_info->transfer_data.tdata.att_courtesy_vru.dtmf_digits));
sngisdn_info->transfer_data.type = type;
/* We will be polling the channel for IO so that we can receive the DTMF events,
* Disable user RX otherwise it is a race between who calls channel_read */
ftdm_set_flag(ftdmchan, FTDM_CHANNEL_RX_DISABLED);
ftdm_channel_command(ftdmchan, FTDM_COMMAND_ENABLE_DTMF_DETECT, NULL);
ftdm_channel_command(ftdmchan, FTDM_COMMAND_SEND_DTMF, dtmf_digits);
if (type == SNGISDN_TRANSFER_ATT_COURTESY_VRU_DATA) {
/* We need to save transfer data, so we can send it in the disconnect msg */
const char *val = ftdm_usrmsg_get_var(ftdmchan->usrmsg, "transfer_data");
if (ftdm_strlen_zero(val)) {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_ERROR, "Cannot perform data transfer because transfer_data variable is not set\n");
goto done;
}
if (strlen(val) > COURTESY_TRANSFER_MAX_DATA_SIZE) {
ftdm_log_chan(ftdmchan, FTDM_LOG_ERROR, "Data exceeds max size (len:%"FTDM_SIZE_FMT" max:%d), cannot perform transfer\n", strlen(val), COURTESY_TRANSFER_MAX_DATA_SIZE);
goto done;
}
memcpy(sngisdn_info->transfer_data.tdata.att_courtesy_vru.data, val, strlen(val));
}
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_UP);
if (forced_answer) {
/* Notify the user that we answered the call */
sngisdn_send_signal(sngisdn_info, FTDM_SIGEVENT_UP);
}
if (signal_data->transfer_timeout) {
ftdm_sched_timer(((sngisdn_span_data_t*)ftdmchan->span->signal_data)->sched, "courtesy_transfer_timeout", signal_data->transfer_timeout, att_courtesy_transfer_timeout, (void*) sngisdn_info, &sngisdn_info->timers[SNGISDN_CHAN_TIMER_ATT_TRANSFER]);
}
status = FTDM_SUCCESS;
break;
default:
ftdm_log_chan(ftdmchan, FTDM_LOG_ERROR, "Cannot perform transfer in state %s\n", ftdm_channel_state2str(ftdmchan->state));
break;
}
done:
return status;
}