4 # Create and populate an XFS filesystem, corrupt a btree directory's data
5 # extent, then see how the kernel and xfs_repair deal with it.
7 #-----------------------------------------------------------------------
8 # Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
10 # This program is free software; you can redistribute it and/or
11 # modify it under the terms of the GNU General Public License as
12 # published by the Free Software Foundation.
14 # This program is distributed in the hope that it would be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write the Free Software Foundation,
21 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #-----------------------------------------------------------------------
26 seqres=$RESULT_DIR/$seq
27 echo "QA output created by $seq"
31 status=1 # failure is the default!
32 trap "_cleanup; exit \$status" 0 1 2 3 15
40 # get standard environment, filters and checks
46 # real QA test starts here
51 test -n "${FORCE_FUZZ}" || _require_scratch_xfs_crc
53 _require_populate_commands
54 _require_xfs_db_blocktrash_z_command
55 test -z "${FUZZ_ARGS}" && FUZZ_ARGS="-n 8 -3"
59 echo "+ create scratch fs"
60 _scratch_mkfs_xfs > /dev/null
62 echo "+ mount fs image"
64 dblksz="$(xfs_info "${SCRATCH_MNT}" | grep naming.*bsize | sed -e 's/^.*bsize=//g' -e 's/\([0-9]*\).*$/\1/g')"
65 nr="$((128 * dblksz / 40))"
66 blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")"
67 leaf_lblk="$((32 * 1073741824 / blksz))"
68 node_lblk="$((64 * 1073741824 / blksz))"
70 echo "+ make some files"
71 __populate_create_dir "${SCRATCH_MNT}/blockdir" "${nr}" true
72 inode="$(stat -c '%i' "${SCRATCH_MNT}/blockdir")"
73 umount "${SCRATCH_MNT}"
76 _scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
79 __populate_check_xfs_dir "${inode}" btree
84 _scratch_xfs_db -x -c "inode ${inode}" -c "dblock ${loff}" -c "stack" | grep -q 'file data block is unmapped' && break
85 _scratch_xfs_db -x -c "inode ${inode}" -c "dblock ${loff}" -c "stack" -c "blocktrash -x 32 -y $((blksz * 8)) -z ${FUZZ_ARGS}" >> $seqres.full
93 rm -rf "${SCRATCH_MNT}/blockdir/00000000" 2> /dev/null && _fail "modified corrupt directory"
94 mkdir "${SCRATCH_MNT}/blockdir/xxxxxxxx" 2> /dev/null && _fail "add to corrupt directory"
95 umount "${SCRATCH_MNT}"
98 _scratch_xfs_repair >> $seqres.full 2>&1
99 _scratch_xfs_repair >> $seqres.full 2>&1
101 echo "+ mount image (2)"
104 echo "+ chattr -R -i"
105 $CHATTR_PROG -R -f -i "${SCRATCH_MNT}/"
107 echo "+ modify dir (2)"
108 mkdir -p "${SCRATCH_MNT}/blockdir"
109 rm -rf "${SCRATCH_MNT}/blockdir/00000000" || _fail "couldn't modify repaired directory"
110 mkdir "${SCRATCH_MNT}/blockdir/xxxxxxxx" || _fail "add to repaired directory"
111 umount "${SCRATCH_MNT}"
113 echo "+ check fs (2)"
114 _scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"