#!/bin/bash # # Copyright (C) 2016 Stanislav Brabec <sbrabec@suse.cz> # # This file is part of util-linux. # # This file is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This file is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # TS_TOPDIR="${0%/*}/../.." TS_DESC="loop overlay" . $TS_TOPDIR/functions.sh ts_init "$*" ts_check_test_command "$TS_CMD_LOSETUP" ts_check_test_command "$TS_CMD_MOUNT" ts_check_test_command "$TS_CMD_UMOUNT" ts_skip_nonroot ts_check_losetup ts_check_prog "mkfs.ext3" ts_check_prog "dd" ts_check_prog "stat" IMG=$(ts_image_init 5) mkfs.ext2 -F "$IMG" &> /dev/null || ts_die "Cannot make extn on $IMG" OFFSET=$(stat -c %s "$IMG") dd if="$IMG" of="$IMG" oflag=append bs=5MiB count=1 conv=notrunc &>/dev/null [ -d "$TS_MOUNTPOINT-1" ] || mkdir -p $TS_MOUNTPOINT-1 [ -d "$TS_MOUNTPOINT-2" ] || mkdir -p $TS_MOUNTPOINT-2 echo "second should fail" >>$TS_OUTPUT $TS_CMD_MOUNT -oloop "$IMG" "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>&1 $TS_CMD_MOUNT -oloop,offset=$OFFSET "$IMG" "$TS_MOUNTPOINT-2" 2>&1 | sed 's/.*://' >>$TS_OUTPUT $TS_CMD_UMOUNT "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>&1 echo "should succeed" >>$TS_OUTPUT $TS_CMD_MOUNT -oloop,sizelimit=$OFFSET "$IMG" "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>&1 $TS_CMD_MOUNT -oloop,offset=$OFFSET "$IMG" "$TS_MOUNTPOINT-2" >> $TS_OUTPUT 2>&1 $TS_CMD_UMOUNT "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>&1 $TS_CMD_UMOUNT "$TS_MOUNTPOINT-2" >> $TS_OUTPUT 2>&1 echo "both should fail" >>$TS_OUTPUT LOOPDEV=$($TS_CMD_LOSETUP --find) $TS_CMD_LOSETUP --offset 1 --sizelimit $OFFSET $LOOPDEV "$IMG" $TS_CMD_MOUNT -oloop,sizelimit=$OFFSET "$IMG" "$TS_MOUNTPOINT-1" 2>&1 | sed 's/.*://' >>$TS_OUTPUT $TS_CMD_MOUNT -oloop,offset=$OFFSET "$IMG" "$TS_MOUNTPOINT-2" 2>&1 | sed 's/.*://' >>$TS_OUTPUT $TS_CMD_LOSETUP --detach $LOOPDEV ts_log "Success" ts_finalize