ftdm_status_t sngisdn_att_transfer_process_dtmf(ftdm_channel_t *ftdmchan, const char* dtmf)
{
ftdm_status_t status = FTDM_SUCCESS;
sngisdn_chan_data_t *sngisdn_info = ftdmchan->call_data;
sngisdn_span_data_t *signal_data = (sngisdn_span_data_t*) ftdmchan->span->signal_data;
char *dtmf_digits = sngisdn_info->transfer_data.tdata.att_courtesy_vru.dtmf_digits;
ftdm_size_t dtmf_digits_len = strlen(dtmf_digits);
dtmf_digits_len += sprintf(&dtmf_digits[dtmf_digits_len], "%s", dtmf);
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "Transfer response digits:%s\n", dtmf_digits);
if (dtmf_digits_len == 3) {
if (!strcmp(dtmf_digits, SNGISDN_ATT_TRANSFER_RESPONSE_CP_DROP_OFF)) {
sngisdn_info->transfer_data.response = FTDM_TRANSFER_RESPONSE_CP_DROP_OFF;
} else if (!strcmp(dtmf_digits, SNGISDN_ATT_TRANSFER_RESPONSE_LIMITS_EXCEEDED)) {
sngisdn_info->transfer_data.response = FTDM_TRANSFER_RESPONSE_LIMITS_EXCEEDED;
} else if (!strcmp(dtmf_digits, SNGISDN_ATT_TRANSFER_RESPONSE_OK)) {
sngisdn_info->transfer_data.response = FTDM_TRANSFER_RESPONSE_OK;
} else if (!strcmp(dtmf_digits, SNGISDN_ATT_TRANSFER_RESPONSE_INVALID_NUM)) {
sngisdn_info->transfer_data.response = FTDM_TRANSFER_RESPONSE_INVALID_NUM;
} else if (!strcmp(dtmf_digits, SNGISDN_ATT_TRANSFER_RESPONSE_INVALID_COMMAND)) {
sngisdn_info->transfer_data.response = FTDM_TRANSFER_RESPONSE_INVALID_COMMAND;
} else {
sngisdn_info->transfer_data.response = FTDM_TRANSFER_RESPONSE_INVALID;
}
if (signal_data->transfer_timeout) {
ftdm_sched_cancel_timer(signal_data->sched, sngisdn_info->timers[SNGISDN_CHAN_TIMER_ATT_TRANSFER]);
}
if (sngisdn_info->transfer_data.response == FTDM_TRANSFER_RESPONSE_OK &&
sngisdn_info->transfer_data.type == SNGISDN_TRANSFER_ATT_COURTESY_VRU_DATA) {
sngisdn_set_flag(sngisdn_info, FLAG_SEND_DISC);
ftdmchan->caller_data.hangup_cause = FTDM_CAUSE_NORMAL_CLEARING;
sngisdn_snd_disconnect(ftdmchan);
}
/* Network side will send disconnect in case of NO-DATA Transfer */
att_courtesy_transfer_complete(sngisdn_info, sngisdn_info->transfer_data.response);
}
if (signal_data->att_remove_dtmf != SNGISDN_OPT_FALSE) {
/* If we return FTDM_BREAK, dtmf event is not queue'ed to user */
status = FTDM_BREAK;
}
return status;
}
void sngisdn_delayed_disconnect(void* p_sngisdn_info)
{
sngisdn_chan_data_t *sngisdn_info = (sngisdn_chan_data_t*)p_sngisdn_info;
ftdm_channel_t *ftdmchan = sngisdn_info->ftdmchan;
sngisdn_span_data_t *signal_data = (sngisdn_span_data_t*) ftdmchan->span->signal_data;
ftdm_mutex_lock(ftdmchan->mutex);
if (ftdmchan->caller_data.hangup_cause == IN_CCNORTTODEST || ftdmchan->state != FTDM_CHANNEL_STATE_DOWN) {
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "Sending delayed DISCONNECT (suId:%d suInstId:%u spInstId:%u)\n",
signal_data->cc_id, sngisdn_info->glare.spInstId, sngisdn_info->glare.suInstId);
sngisdn_snd_disconnect(ftdmchan);
if (ftdmchan->caller_data.hangup_cause == IN_CCNORTTODEST) {
ftdm_channel_t *close_chan = ftdmchan;
ftdm_channel_close(&close_chan);
}
}
ftdm_mutex_unlock(ftdmchan->mutex);
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;
}
