OPENZAP-176 --resolve

Fix DAHDI/Zaptel incorrect FXO signaling status on module load

libs/freetdm/src/ftmod/ftmod_zt/ftmod_zt.c

@@ -34,6 +34,7 @@
  *
  * Moises Silva <moy@sangoma.com>
  * W McRoberts <fs@whmcr.com>
+ * Puskás Zsolt <errotan@gmail.com>
  *
  */
 
@@ -877,10 +878,13 @@ static FIO_COMMAND_FUNCTION(zt_command)
 static FIO_GET_ALARMS_FUNCTION(zt_get_alarms)
 {
 	struct zt_spaninfo info;
+	zt_params_t params;
 
 	memset(&info, 0, sizeof(info));
 	info.span_no = ftdmchan->physical_span_id;
 
+	memset(&params, 0, sizeof(params));
+
 	if (ioctl(CONTROL_FD, codes.SPANSTAT, &info)) {
 		snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "ioctl failed (%s)", strerror(errno));
 		snprintf(ftdmchan->span->last_error, sizeof(ftdmchan->span->last_error), "ioctl failed (%s)", strerror(errno));
@@ -889,6 +893,27 @@ static FIO_GET_ALARMS_FUNCTION(zt_get_alarms)
 
 	ftdmchan->alarm_flags = info.alarms;
 
+	/* get channel alarms if span has no alarms */
+	if (info.alarms == FTDM_ALARM_NONE) {
+		if (ioctl(ftdmchan->sockfd, codes.GET_PARAMS, &params)) {
+			snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "ioctl failed (%s)", strerror(errno));
+			snprintf(ftdmchan->span->last_error, sizeof(ftdmchan->span->last_error), "ioctl failed (%s)", strerror(errno));
+			return FTDM_FAIL;
+		}
+
+		if (params.chan_alarms > 0) {
+			if (params.chan_alarms == DAHDI_ALARM_YELLOW) {
+				ftdmchan->alarm_flags = FTDM_ALARM_YELLOW;
+			}
+			else if (params.chan_alarms == DAHDI_ALARM_BLUE) {
+				ftdmchan->alarm_flags = FTDM_ALARM_BLUE;
+			}
+			else {
+				ftdmchan->alarm_flags = FTDM_ALARM_RED;
+			}
+		}
+	}
+
 	return FTDM_SUCCESS;
 }
 

libs/freetdm/src/ftmod/ftmod_zt/ftmod_zt.h

@@ -339,6 +339,10 @@ ZT_ABIT = 8
 #define		DAHDI_HDLCRAWMODE	_IOW (DAHDI_CODE, 36, int)				/* Set a clear channel into HDLC w/out FCS checking/calculation mode */
 #define		DAHDI_HDLCFCSMODE	_IOW (DAHDI_CODE, 37, int)				/* Set a clear channel into HDLC w/ FCS mode */
 
+/* Dahdi channel alarms */
+#define		DAHDI_ALARM_YELLOW (1 << 2) /* Yellow Alarm */
+#define		DAHDI_ALARM_BLUE (1 << 4) /* Blue Alarm */
+
 /* Specify a channel on /dev/dahdi/chan -- must be done before any other ioctl's and is only valid on /dev/dahdi/chan */
 #define		DAHDI_SPECIFY		_IOW  (DAHDI_CODE, 38, int)