2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
7 # Create and populate an XFS filesystem, corrupt a block xattr, then see
8 # how the kernel and xfs_repair deal with it.
11 seqres=$RESULT_DIR/$seq
12 echo "QA output created by $seq"
16 status=1 # failure is the default!
17 trap "_cleanup; exit \$status" 0 1 2 3 15
25 # get standard environment, filters and checks
31 # real QA test starts here
36 test -n "${FORCE_FUZZ}" || _require_scratch_xfs_crc
38 _require_populate_commands
39 _require_xfs_db_blocktrash_z_command
40 test -z "${FUZZ_ARGS}" && FUZZ_ARGS="-n 8 -3"
44 echo "+ create scratch fs"
45 _scratch_mkfs_xfs > /dev/null
47 echo "+ mount fs image"
49 blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")"
51 leaf_lblk="$((32 * 1073741824 / blksz))"
52 node_lblk="$((64 * 1073741824 / blksz))"
54 echo "+ make some files"
55 touch "${SCRATCH_MNT}/attrfile"
56 seq 0 "${nr}" | while read d; do
57 setfattr -n "user.x$(printf "%.08d" "$d")" -v "0000000000000000" "${SCRATCH_MNT}/attrfile"
59 inode="$(stat -c '%i' "${SCRATCH_MNT}/attrfile")"
60 umount "${SCRATCH_MNT}"
63 _scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
66 _scratch_xfs_db -x -c "inode ${inode}" -c "bmap" >> $seqres.full
67 _scratch_xfs_db -x -c "inode ${inode}" -c "ablock 0" -c "stack" | grep -q 'file attr block is unmapped' && _fail "failed to create a block xattr (data)"
68 _scratch_xfs_db -x -c "inode ${inode}" -c "ablock ${leaf_lblk}" -c "stack" | grep -q 'file attr block is unmapped' || _fail "failed to create a block xattr (leaf)"
69 _scratch_xfs_db -x -c "inode ${inode}" -c "ablock ${node_lblk}" -c "stack" | grep -q 'file attr block is unmapped' || _fail "failed to create a block xattr (free)"
71 echo "+ corrupt xattr"
72 _scratch_xfs_db -x -c "inode ${inode}" -c 'ablock 0' -c "stack" -c "blocktrash -x 32 -y $((blksz * 8)) -z ${FUZZ_ARGS}" >> $seqres.full
74 echo "+ mount image && modify xattr"
75 if _try_scratch_mount >> $seqres.full 2>&1; then
77 setfattr -x "user.x00000000" "${SCRATCH_MNT}/attrfile" 2> /dev/null && _fail "modified corrupt xattr"
78 umount "${SCRATCH_MNT}"
82 _scratch_xfs_repair >> $seqres.full 2>&1
83 _scratch_xfs_repair >> $seqres.full 2>&1
85 echo "+ mount image (2)"
89 $CHATTR_PROG -R -f -i "${SCRATCH_MNT}/"
91 echo "+ modify xattr (2)"
92 getfattr "${SCRATCH_MNT}/attrfile" -n "user.x00000000" > /dev/null 2>&1 && (setfattr -x "user.x00000000" "${SCRATCH_MNT}/attrfile" || _fail "remove corrupt xattr")
93 setfattr -n "user.x00000000" -v 'x0x0x0x0' "${SCRATCH_MNT}/attrfile" || _fail "add corrupt xattr"
94 umount "${SCRATCH_MNT}"
97 _scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"