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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Xiao Yang
ded188b860
On upstream kernel, running some tests which corrupt XFS on purpose
got the mismatched output. e.g. running xfs/087:
------------------------------------------------
+ check fs
+ corrupt image
+ mount image
-+ modify files
-broken: 1
+ repair fs
+ mount image (2)
------------------------------------------------
It is reasonable for corrupted XFS to be caught and rejected by mount
or read/write operation.
Fixes: 0828657542 ("xfs: fix blocktrash fuzzers")
Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
103 lines
2.7 KiB
Bash
Executable File
103 lines
2.7 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. 113
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#
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# Create and populate an XFS filesystem, corrupt a btree directory's data
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# extent, then see how the kernel and xfs_repair deal with it.
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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 $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/attr
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. ./common/populate
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# real QA test starts here
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_supported_fs xfs
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_supported_os Linux
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_require_scratch
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test -n "${FORCE_FUZZ}" || _require_scratch_xfs_crc
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_require_attrs
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_require_populate_commands
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_require_xfs_db_blocktrash_z_command
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test -z "${FUZZ_ARGS}" && FUZZ_ARGS="-n 8 -3"
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rm -f $seqres.full
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echo "+ create scratch fs"
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_scratch_mkfs_xfs > /dev/null
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echo "+ mount fs image"
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_scratch_mount
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dblksz="$($XFS_INFO_PROG "${SCRATCH_MNT}" | grep naming.*bsize | sed -e 's/^.*bsize=//g' -e 's/\([0-9]*\).*$/\1/g')"
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nr="$((128 * dblksz / 40))"
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blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")"
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leaf_lblk="$((32 * 1073741824 / blksz))"
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node_lblk="$((64 * 1073741824 / blksz))"
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echo "+ make some files"
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__populate_create_dir "${SCRATCH_MNT}/blockdir" "${nr}" true
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inode="$(stat -c '%i' "${SCRATCH_MNT}/blockdir")"
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umount "${SCRATCH_MNT}"
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echo "+ check fs"
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_scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
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echo "+ check dir"
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__populate_check_xfs_dir "${inode}" btree
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echo "+ corrupt dir"
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loff=0
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while true; do
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_scratch_xfs_db -x -c "inode ${inode}" -c "dblock ${loff}" -c "stack" | grep -q 'file data block is unmapped' && break
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_scratch_xfs_db -x -c "inode ${inode}" -c "dblock ${loff}" -c "stack" -c "blocktrash -x 32 -y $((blksz * 8)) -z ${FUZZ_ARGS}" >> $seqres.full
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loff="$((loff + 1))"
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done
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echo "+ mount image && modify dir"
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if _try_scratch_mount >> $seqres.full 2>&1; then
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rm -rf "${SCRATCH_MNT}/blockdir/00000000" 2> /dev/null && _fail "modified corrupt directory"
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mkdir "${SCRATCH_MNT}/blockdir/xxxxxxxx" 2> /dev/null && _fail "add to corrupt directory"
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umount "${SCRATCH_MNT}"
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fi
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echo "+ repair fs"
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_scratch_xfs_repair >> $seqres.full 2>&1
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_scratch_xfs_repair >> $seqres.full 2>&1
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echo "+ mount image (2)"
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_scratch_mount
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echo "+ chattr -R -i"
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$CHATTR_PROG -R -f -i "${SCRATCH_MNT}/"
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echo "+ modify dir (2)"
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mkdir -p "${SCRATCH_MNT}/blockdir"
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rm -rf "${SCRATCH_MNT}/blockdir/00000000" || _fail "couldn't modify repaired directory"
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mkdir "${SCRATCH_MNT}/blockdir/xxxxxxxx" || _fail "add to repaired directory"
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umount "${SCRATCH_MNT}"
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echo "+ check fs (2)"
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_scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
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status=0
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exit
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