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|
#!/bin/bash
if [ "$(id -u)" != "0" ]; then
echo "Please run as root" 1>&2
exit 1
fi
rootdir=`dirname $(readlink -f "${BASH_SOURCE[0]}")`
source ${rootdir}/scripts/lib_nbd_img_handling
progname=$(basename $0)
function usage()
{
cat << HEREDOC
Usage:
Mount Image : $progname [--connect] <path to qcow2 image>
Mount Image : $progname [--connect-raw] <path to raw image>
Mount Image : $progname [--disconnect] <nbd device basename>
Mount Image : $progname [-m|--mount] <path to qcow2 image> <mount point>
Mount Image : $progname [-r|--mount-raw] <path to raw image> <mount point>
Umount Image: $progname [-u|--umount] <mount point>
Cleanup NBD : $progname [--cleanup]
arguments:
-h, --help show this help message and exit
-c, --cleanup cleanup orphaned device mappings
-C, --force-cleanup forcefully cleanup orphaned or still connected device mappings
--connect connect qcow2 image
--connect-raw connect raw image
--disconnect disconnect connected qcow2 image
-m, --mount mount qcow2 image
-r, --mount-raw mount raw image
-u, --umount umount image
./$progname --mount --image <your image> --mount-point <your path>
HEREDOC
}
CONNECT=0
DISCONNECT=0
MOUNT=0
RAW_IMAGE=0
UMOUNT=0
IMAGE=""
MOUNTPOINT=""
NBD_BASENAME=""
error_exit() {
echo "$@"
usage
exit
}
# As long as there is at least one more argument, keep looping
while [[ $# -gt 0 ]]; do
key="$1"
case "$key" in
-h|--help)
usage
exit
;;
-c|--cleanup)
lib_nbd_cleanup
exit
;;
-C|--force-cleanup)
lib_force_nbd_cleanup
exit
;;
--connect-raw)
CONNECT=1
RAW_IMAGE=1
;;
--connect)
CONNECT=1
;;
--disconnect)
DISCONNECT=1
;;
-r|--mount-raw)
MOUNT=1
RAW_IMAGE=1
;;
-m|--mount)
MOUNT=1
;;
-u|--umount)
UMOUNT=1
;;
*)
if [ $CONNECT -eq 1 ]; then
if [ -z "$IMAGE" ]; then
IMAGE=$1
else
error_exit "Unknown connect option '$key'"
fi
elif [ $DISCONNECT -eq 1 ]; then
if [ -z "$NBD_BASENAME" ]; then
NBD_BASENAME=$1
else
error_exit "Unknown disconnect option '$key'"
fi
elif [ $MOUNT -eq 1 ]; then
if [ -z "$IMAGE" ]; then
IMAGE=$1
elif [ -z "$MOUNTPOINT" ]; then
MOUNTPOINT=$1
else
error_exit "Unknown mount option '$key'"
fi
elif [ $UMOUNT -eq 1 ]; then
if [ -z "$MOUNTPOINT" ]; then
MOUNTPOINT=$1
else
error_exit "Unknown unmount option '$key'"
fi
else
error_exit "Unknown option '$key'"
fi
;;
esac
# Shift after checking all the cases to get the next option
shift
done
CTR_MOUNTCONN=0
if [ "${MOUNT}" = "1" ]; then
let CTR_MOUNTCONN=${CTR_MOUNTCONN}+1
fi
if [ "${UMOUNT}" = "1" ]; then
let CTR_MOUNTCONN=${CTR_MOUNTCONN}+1
fi
if [ "${CONNECT}" = "1" ]; then
let CTR_MOUNTCONN=${CTR_MOUNTCONN}+1
fi
if [ "${DISCONNECT}" = "1" ]; then
let CTR_MOUNTCONN=${CTR_MOUNTCONN}+1
fi
if [ "${CTR_MOUNTCONN}" -gt 1 ]; then
usage
echo "Concurrent mount/connect options not possible."
exit
fi
if [ "${CONNECT}" = "1" ] && [ -z "${IMAGE}" ]; then
usage
echo "Can not connect to image. Image path missing."
exit
fi
if [ "${DISCONNECT}" = "1" ] && [ -z "${NBD_BASENAME}" ]; then
usage
echo "Can not disconnect nbd device. NBD basename missing."
exit
fi
if [ "${MOUNT}" = "1" ] && ([ -z "${IMAGE}" ] || [ -z "${MOUNTPOINT}" ]); then
usage
echo "Can not mount image. Image path and/or mount point missing."
exit
fi
if [ "${UMOUNT}" = "1" ] && [ -z "${MOUNTPOINT}" ]; then
usage
echo "Can not umount. Mount point parameter missing."
exit
fi
if [ -n "${MOUNTPOINT}" -a ! -d "${MOUNTPOINT}" ]; then
echo "Mountpoint ${MOUNTPOINT} not existing."
exit 1
fi
if [ -n "${IMAGE}" -a ! -f "${IMAGE}" ]; then
echo "Image ${IMAGE} not existing."
exit 1
fi
if [ "${CONNECT}" = "1" ]; then
nbd_dev=
if [ "${RAW_IMAGE}" = "1" ]; then
nbd_dev=$(lib_connect_blkdev2 "${IMAGE}" "raw")
else
nbd_dev=$(lib_connect_blkdev2 "${IMAGE}" "qcow2")
fi
echo ${nbd_dev}
elif [ "${DISCONNECT}" = "1" ]; then
lib_disconnect_blkdev "${NBD_BASENAME}"
elif [ "${MOUNT}" = "1" ]; then
nbd_dev=
if [ "${RAW_IMAGE}" = "1" ]; then
nbd_dev=$(lib_mount_image3 "${IMAGE}" "raw" "${MOUNTPOINT}")
else
nbd_dev=$(lib_mount_image3 "${IMAGE}" "qcow2" "${MOUNTPOINT}")
fi
echo ${nbd_dev}
elif [ "${UMOUNT}" = "1" ]; then
lib_umount_image1 "${MOUNTPOINT}"
fi
|
