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|
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
#
# FS QA Test No. 117
#
# Create and populate an XFS filesystem, corrupt an inode, then see how
# the kernel and xfs_repair deal with it.
#
. ./common/preamble
_begin_fstest fuzzers
# Override the default cleanup function.
_cleanup()
{
cd /
#rm -f $tmp.*
}
# Import common functions.
. ./common/filter
. ./common/attr
. ./common/populate
# real QA test starts here
_supported_fs xfs
_require_scratch
test -n "${FORCE_FUZZ}" || _require_scratch_xfs_crc
_require_attrs
_require_populate_commands
_require_xfs_db_blocktrash_z_command
test -z "${FUZZ_ARGS}" && FUZZ_ARGS="-n 8 -3"
victimdir="${SCRATCH_MNT}/scratchdir"
echo "+ create scratch fs"
_scratch_mkfs_xfs > /dev/null
echo "+ mount fs image"
_scratch_mount
blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")"
echo "+ make some files"
mkdir -p "$victimdir"
rootdir="$(stat -c '%i' "$SCRATCH_MNT")"
rootchunk=$(( rootdir / 64 ))
# First we create some dummy file so that the victim files don't get created
# in the same inode chunk as the root directory, because a corrupt inode in
# the root chunk causes mount to fail.
for ((i = 0; i < 256; i++)); do
fname="$SCRATCH_MNT/dummy.$i"
touch "$fname"
ino="$(stat -c '%i' "$fname")"
ichunk=$(( ino / 64 ))
test "$ichunk" -gt "$rootchunk" && break
done
# Now create some victim files
inos=()
for ((i = 0; i < 64; i++)); do
fname="$victimdir/test.$i"
touch "$fname"
inos+=("$(stat -c '%i' "$fname")")
done
echo "First victim inode is: " >> $seqres.full
stat -c '%i' "$fname" >> $seqres.full
umount "${SCRATCH_MNT}"
echo "+ check fs"
_scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
echo "+ corrupt image"
for ino in "${inos[@]}"; do
_scratch_xfs_db -x -c "inode ${ino}" -c "stack" -c "blocktrash -x 32 -y $((blksz * 8)) -z ${FUZZ_ARGS}" >> $seqres.full 2>&1
done
echo "+ mount image && modify files"
broken=1
if _try_scratch_mount >> $seqres.full 2>&1; then
for ((i = 0; i < 64; i++)); do
fname="$victimdir/test.$i"
stat "$fname" &>> $seqres.full
test $? -eq 0 && broken=0
touch "$fname" &>> $seqres.full
test $? -eq 0 && broken=0
done
umount "${SCRATCH_MNT}"
fi
echo "broken: ${broken}"
echo "+ repair fs"
_repair_scratch_fs >> $seqres.full 2>&1
echo "+ mount image (2)"
_scratch_mount
echo "+ chattr -R -i"
$CHATTR_PROG -R -f -i "${SCRATCH_MNT}/"
echo "+ modify files (2)"
broken=0
for x in `seq 1 64`; do
test -e "${TESTFILE}.${x}" || continue
echo "test ${x}" >> $seqres.full
stat "${TESTFILE}.${x}" >> $seqres.full 2>&1
test $? -ne 0 && broken=1
touch "${TESTFILE}.${x}" >> $seqres.full 2>&1
test $? -ne 0 && broken=1
echo "${x}: broken=${broken}" >> $seqres.full
done
echo "broken: ${broken}"
umount "${SCRATCH_MNT}"
echo "+ check fs (2)"
_scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
status=0
exit
|
