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[mod_spandsp] Fix t.38 fax initialization not to add it to the timer thread until after configuration has completed.

This commit is contained in:
Chris Rienzo 2021-02-08 22:25:02 +00:00 committed by Andrey Volk
parent e9e7e051fa
commit 2991b9f91e
1 changed files with 21 additions and 17 deletions
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38
src/mod/applications/mod_spandsp/mod_spandsp_fax.c
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@ -835,12 +835,10 @@ static switch_status_t spanfax_init(pvt_t *pvt, transport_mode_t trans_mode)
case T38_MODE:
{
switch_core_session_message_t msg = { 0 };
switch_mutex_lock(pvt->mutex);
if (pvt->t38_state == NULL) {
pvt->t38_state = (t38_terminal_state_t *) switch_core_session_alloc(pvt->session, sizeof(t38_terminal_state_t));
}
if (pvt->t38_state == NULL) {
switch_mutex_unlock(pvt->mutex);
return SWITCH_STATUS_FALSE;
}
if (pvt->udptl_state == NULL) {
@ -849,7 +847,6 @@ static switch_status_t spanfax_init(pvt_t *pvt, transport_mode_t trans_mode)
if (pvt->udptl_state == NULL) {
t38_terminal_free(pvt->t38_state);
pvt->t38_state = NULL;
switch_mutex_unlock(pvt->mutex);
return SWITCH_STATUS_FALSE;
}
@ -860,7 +857,6 @@ static switch_status_t spanfax_init(pvt_t *pvt, transport_mode_t trans_mode)
memset(t38, 0, sizeof(t38_terminal_state_t));
if (t38_terminal_init(t38, pvt->caller, t38_tx_packet_handler, pvt) == NULL) {
switch_mutex_unlock(pvt->mutex);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot initialize my T.38 structs\n");
return SWITCH_STATUS_FALSE;
}
@ -869,7 +865,6 @@ static switch_status_t spanfax_init(pvt_t *pvt, transport_mode_t trans_mode)
if (udptl_init(pvt->udptl_state, UDPTL_ERROR_CORRECTION_REDUNDANCY, fec_span, fec_entries,
(udptl_rx_packet_handler_t *) t38_core_rx_ifp_packet, (void *) pvt->t38_core) == NULL) {
switch_mutex_unlock(pvt->mutex);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot initialize my UDPTL structs\n");
return SWITCH_STATUS_FALSE;
}
@ -891,13 +886,6 @@ static switch_status_t spanfax_init(pvt_t *pvt, transport_mode_t trans_mode)
span_log_set_level(t38_terminal_get_logging_state(t38), SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
span_log_set_level(t30_get_logging_state(t30), SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
}
switch_mutex_unlock(pvt->mutex);
/* add to timer thread processing */
if (!add_pvt(pvt)) {
switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
}
}
break;
case T38_GATEWAY_MODE:
@ -1700,10 +1688,17 @@ void mod_spandsp_fax_process_fax(switch_core_session_t *session, const char *dat
switch_core_session_message_t msg = { 0 };
pvt->t38_mode = T38_MODE_NEGOTIATED;
switch_channel_set_app_flag_key("T38", channel, CF_APP_T38_NEGOTIATED);
spanfax_init(pvt, T38_MODE);
switch_mutex_lock(pvt->mutex);
configure_t38(pvt);
switch_mutex_unlock(pvt->mutex);
if (spanfax_init(pvt, T38_MODE) == SWITCH_STATUS_SUCCESS) {
configure_t38(pvt);
/* add to timer thread processing */
if (!add_pvt(pvt)) {
switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
}
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot initialize Fax engine for T.38\n");
switch_channel_set_variable(channel, SWITCH_CURRENT_APPLICATION_RESPONSE_VARIABLE, "Cannot initialize Fax engine for T.38");
goto done;
}
/* This will change the rtp stack to udptl mode */
msg.from = __FILE__;
@ -1726,7 +1721,16 @@ void mod_spandsp_fax_process_fax(switch_core_session_t *session, const char *dat
if (negotiate_t38(pvt) == T38_MODE_NEGOTIATED) {
/* is is safe to call this again, it was already called above in AUDIO_MODE */
/* but this is the only way to set up the t38 stuff */
spanfax_init(pvt, T38_MODE);
if (spanfax_init(pvt, T38_MODE) == SWITCH_STATUS_SUCCESS) {
/* add to timer thread processing */
if (!add_pvt(pvt)) {
switch_channel_hangup(channel, SWITCH_CAUSE_DESTINATION_OUT_OF_ORDER);
}
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot initialize Fax engine for T.38\n");
switch_channel_set_variable(channel, SWITCH_CURRENT_APPLICATION_RESPONSE_VARIABLE, "Cannot initialize Fax engine for T.38");
goto done;
}
continue;
}
}