Smart iSCSI Mounter v0.96

- The status function now lists active connections.
- Active iSCSI connections are now tested for when mounting/un-mounting
targets.
- The force flag is now required to override mounting/un-mounting
exceptions.

iscsi_vms.sh

@@ -9,6 +9,7 @@ MONITOR_PROC_CNT=7
 
 # Do not modify
 _MONITOR_PROC_CNT=$(pgrep -f $MONITOR_PROC | wc -l)
+_ISCSI_CON_CNT=$(iscsiadm -m session | wc -l)
 _FLAG_FORCE=0
 
 show_usage (){
@@ -32,6 +33,10 @@ check_dir (){
 		echo ""
 		echo "Directory is un-mounted from:" $MOUNT_DIR
 	fi
+
+	echo ""
+	echo "The below iSCSI connection(s) is/are open:"
+	echo "$(iscsiadm -m session)"
 }
 
 check_proc_status (){
@@ -46,6 +51,14 @@ check_proc_status (){
 
 mount_func (){
 	echo "[Attempting to mount iSCSI volume]"
+
+	if [[ ${_ISCSI_CON_CNT} -gt 0 ]] && [[ $_FLAG_FORCE -eq 0 ]]
+	then
+		echo "WARNING: You're already connected to an iSCSI target."
+		echo "Use the -f (--force) flag to bypass this warning."
+		exit 2;
+	fi
+
 	iscsiadm --mode node --targetname $IQN --portal $PORTAL_IP --login
 	sleep 3
 	mount /dev/disk/by-uuid/$DISK_UUID $MOUNT_DIR -o noauto,noperm
@@ -59,6 +72,13 @@ umount_func (){
 		check_proc_status
 	fi
 
+	if [[ ${_ISCSI_CON_CNT} -eq 0 ]] && [[ $_FLAG_FORCE -eq 0 ]]
+	then
+		echo "WARNING: You're not currently connected to an iSCSI target."
+		echo "Use the -f (--force) flag to bypass this warning."
+		exit 2;
+	fi
+
 	umount -l $MOUNT_DIR
 	sleep 3
 	iscsiadm --mode node --targetname $IQN --portal $PORTAL_IP --logout
@@ -95,7 +115,7 @@ while (( "$#" )); do
 			check_dir
 			;;
 		-r|--release)
-			echo "Smart iSCSI Mounter v0.95"
+			echo "Smart iSCSI Mounter v0.96"
 			;;
 		-*)
 			show_usage