65 lines
2.3 KiB
Bash
Executable file
65 lines
2.3 KiB
Bash
Executable file
#!/bin/bash
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#
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# Copyright (C) 2016 Stanislav Brabec <sbrabec@suse.cz>
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#
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# This file is part of util-linux.
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#
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# This file is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This file is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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TS_TOPDIR="${0%/*}/../.."
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TS_DESC="loop overlay"
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. "$TS_TOPDIR"/functions.sh
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ts_init "$*"
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ts_check_test_command "$TS_CMD_LOSETUP"
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ts_check_test_command "$TS_CMD_MOUNT"
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ts_check_test_command "$TS_CMD_UMOUNT"
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ts_skip_nonroot
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ts_check_losetup
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ts_check_prog "mkfs.ext2"
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ts_check_prog "dd"
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ts_check_prog "stat"
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IMG=$(ts_image_init 5)
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mkfs.ext2 -F "$IMG" &> /dev/null || ts_die "Cannot make extn on $IMG"
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OFFSET=$(stat -c %s "$IMG")
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dd if="$IMG" of="$IMG" oflag=append bs=1024k count=5 conv=notrunc &>/dev/null
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[ -d "$TS_MOUNTPOINT-1" ] || mkdir -p $TS_MOUNTPOINT-1
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[ -d "$TS_MOUNTPOINT-2" ] || mkdir -p $TS_MOUNTPOINT-2
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echo "second should fail" >>$TS_OUTPUT
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$TS_CMD_MOUNT -oloop "$IMG" "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>> $TS_ERRLOG
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$TS_CMD_MOUNT -oloop,offset=$OFFSET "$IMG" "$TS_MOUNTPOINT-2" 2>&1 \
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| sed 's/:.*:/: <target>/; s/for .*/for <source>/' >> $TS_OUTPUT
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$TS_CMD_UMOUNT "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>> $TS_ERRLOG
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echo "should succeed" >>$TS_OUTPUT
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$TS_CMD_MOUNT -oloop,sizelimit=$OFFSET "$IMG" "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>> $TS_ERRLOG
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$TS_CMD_MOUNT -oloop,offset=$OFFSET "$IMG" "$TS_MOUNTPOINT-2" >> $TS_OUTPUT 2>> $TS_ERRLOG
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$TS_CMD_UMOUNT "$TS_MOUNTPOINT-1" >> $TS_OUTPUT 2>> $TS_ERRLOG
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$TS_CMD_UMOUNT "$TS_MOUNTPOINT-2" >> $TS_OUTPUT 2>> $TS_ERRLOG
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echo "both should fail" >>$TS_OUTPUT
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LOOPDEV=$($TS_CMD_LOSETUP --show -f --offset 1 --sizelimit $OFFSET "$IMG")
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$TS_CMD_MOUNT -oloop,sizelimit=$OFFSET "$IMG" "$TS_MOUNTPOINT-1" 2>&1 \
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| sed 's/:.*:/: <target>/; s/for .*/for <source>/' >> $TS_OUTPUT
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$TS_CMD_MOUNT -oloop,offset=$OFFSET "$IMG" "$TS_MOUNTPOINT-2" 2>&1 \
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| sed 's/:.*:/: <target>/; s/for .*/for <source>/' >> $TS_OUTPUT
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$TS_CMD_LOSETUP --detach $LOOPDEV
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ts_log "Success"
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ts_finalize
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