mirror of
https://github.com/linux-apfs/apfstests.git
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Dave Chinner
0c1a95d067
Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>
81 lines
1.9 KiB
Bash
Executable File
81 lines
1.9 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
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#
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# FS QA Test No. 019
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#
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# Create and populate an ext4 filesystem, corrupt a big symlink, then
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# see how the kernel and e2fsck deal with it. (They won't)
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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#rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/attr
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# real QA test starts here
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_supported_fs ext4
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_supported_os Linux
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_require_scratch
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test -n "${FORCE_FUZZ}" || _require_scratch_ext4_crc
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_require_attrs
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rm -f $seqres.full
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TESTDIR="${SCRATCH_MNT}/scratchdir"
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TESTFILE="${TESTDIR}/testfile"
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echo "+ create scratch fs"
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_scratch_mkfs_ext4 -O journal > /dev/null 2>&1
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echo "+ mount fs image"
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_scratch_mount
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blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")"
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test "${blksz}" -gt 4096 && blksz=4096
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echo "+ make some files"
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echo "file contents: moo" > "${SCRATCH_MNT}/x"
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str="$(perl -e "print './' x $(( (blksz / 2) - 16));")x"
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(cd $SCRATCH_MNT; ln -s "${str}" "long_symlink")
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cat "${SCRATCH_MNT}/long_symlink"
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umount "${SCRATCH_MNT}"
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echo "+ check fs"
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e2fsck -fn "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "fsck should not fail"
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echo "+ corrupt image"
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debugfs -w -R 'zap -f /long_symlink -p 0x62 0' "${SCRATCH_DEV}" 2> /dev/null
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echo "+ mount image"
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_scratch_mount 2> /dev/null
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cat "${SCRATCH_MNT}/long_symlink" 2>/dev/null && _fail "symlink should be broken"
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umount "${SCRATCH_MNT}"
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echo "+ repair fs"
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e2fsck -fy "${SCRATCH_DEV}" >> $seqres.full 2>&1
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echo "+ mount image (2)"
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_scratch_mount
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cat "${SCRATCH_MNT}/long_symlink" 2>/dev/null && _fail "symlink should be broken"
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umount "${SCRATCH_MNT}"
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echo "+ check fs (2)"
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e2fsck -fn "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "fsck should not fail"
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status=0
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exit
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