2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
7 # Create and populate an XFS filesystem, fuzz the metadata, then see how
8 # the kernel reacts, how xfs_repair fares in fixing the mess, and then
9 # try more kernel accesses to see if it really fixed things.
12 seqres=$RESULT_DIR/$seq
13 echo "QA output created by $seq"
17 status=1 # failure is the default!
18 trap "_cleanup; exit \$status" 0 1 2 3 15
26 # get standard environment, filters and checks
33 # real QA test starts here
37 #_require_xfs_crc # checksum not required, but you probably want it anyway...
38 #_require_xfs_mkfs_crc
40 _require_populate_commands
45 FSCK_LOG="${tmp}-fuzz-${fsck_pass}.log"
46 echo "++ fsck pass ${fsck_pass}" > "${FSCK_LOG}"
47 _scratch_xfs_repair >> "${FSCK_LOG}" 2>&1
49 if [ "${res}" -eq 0 ]; then
50 echo "++ allegedly fixed, reverify" >> "${FSCK_LOG}"
51 _scratch_xfs_repair -n >> "${FSCK_LOG}" 2>&1
54 echo "++ fsck returns ${res}" >> "${FSCK_LOG}"
55 if [ "${res}" -eq 0 ]; then
56 echo "++ fsck thinks we are done" >> "${FSCK_LOG}"
59 elif [ "${res}" -eq 2 ]; then
61 echo "+++ replaying log" >> "${FSCK_LOG}"
62 _try_scratch_mount >> "${FSCK_LOG}" 2>&1
64 echo "+++ mount returns ${res}" >> "${FSCK_LOG}"
65 if [ "${res}" -gt 0 ]; then
66 echo "+++ zeroing log" >> "${FSCK_LOG}"
67 _scratch_xfs_repair -L >> "${FSCK_LOG}" 2>&1
68 echo "+++ returns $?" >> "${FSCK_LOG}"
70 umount "${SCRATCH_MNT}" >> "${FSCK_LOG}" 2>&1
72 elif [ "${fsck_pass}" -eq "${FSCK_PASSES}" ]; then
73 echo "++ fsck did not fix in ${FSCK_PASSES} passes." >> "${FSCK_LOG}"
78 if [ "${fsck_pass}" -gt 1 ]; then
79 cmp -s "${tmp}-fuzz-$((fsck_pass - 1)).log" "${FSCK_LOG}"
81 echo "++ fsck makes no progress"
89 # This test will corrupt fs intentionally, so there will be WARNINGs
90 # in dmesg as expected
93 echo "See interesting results in $seqres.full" | sed -e "s,$RESULT_DIR,RESULT_DIR,g"
95 test -z "${FUZZ_ARGS}" && FUZZ_ARGS="-3 -n 32"
96 test -z "${FSCK_PASSES}" && FSCK_PASSES=10
99 echo "fuzzing xfs with FUZZ_ARGS=$FUZZ_ARGS and FSCK_PASSES=$FSCK_PASSES" > $seqres.full
101 echo "+ create scratch fs" >> $seqres.full
102 _scratch_mkfs_xfs >> $seqres.full 2>&1
104 echo "+ populate fs image" >> $seqres.full
105 _scratch_populate >> $seqres.full
107 echo "+ check fs" >> $seqres.full
108 _scratch_xfs_repair >> $seqres.full 2>&1 || _fail "should pass initial fsck"
110 echo "++ corrupt image" >> $seqres.full
111 _scratch_xfs_db -x -c blockget -c "blocktrash ${FUZZ_ARGS}" >> $seqres.full 2>&1
113 echo "++ mount image" >> $seqres.full
114 _try_scratch_mount >> $seqres.full 2>&1
116 echo "+++ test scratch" >> $seqres.full
117 _scratch_fuzz_test >> $seqres.full 2>&1
119 echo "+++ modify scratch" >> $seqres.full
120 _scratch_fuzz_modify >> $seqres.full 2>&1
122 echo "++ umount" >> $seqres.full
123 umount "${SCRATCH_MNT}"
125 # repair in a loop...
126 for p in $(seq 1 "${FSCK_PASSES}"); do
127 scratch_repair "$p" >> $seqres.full 2>&1 && break
129 echo "+ fsck loop returns ${fsck_loop_ret}" >> $seqres.full
131 echo "++ check fs for round 2" >> $seqres.full
132 _scratch_xfs_repair >> $seqres.full 2>&1
134 ROUND2_LOG="${tmp}-round2-${fsck_pass}.log"
135 echo "++ mount image (2)" >> $ROUND2_LOG
136 _try_scratch_mount >> $ROUND2_LOG 2>&1
138 echo "++ chattr -R -i" >> $ROUND2_LOG
139 $CHATTR_PROG -R -f -i "${SCRATCH_MNT}/" > /dev/null 2>> $ROUND2_LOG
141 echo "+++ test scratch" >> $ROUND2_LOG
142 _scratch_fuzz_test >> $ROUND2_LOG 2>&1
144 echo "+++ modify scratch" >> $ROUND2_LOG
145 _scratch_fuzz_modify >> $ROUND2_LOG 2>&1
147 echo "++ umount" >> $ROUND2_LOG
148 umount "${SCRATCH_MNT}" >> $ROUND2_LOG 2>&1
150 cat "$ROUND2_LOG" >> $seqres.full
152 echo "++ check fs (2)" >> $seqres.full
153 _scratch_xfs_repair >> $seqres.full 2>&1
155 egrep -q '(did not fix|makes no progress)' $seqres.full && echo "xfs_repair failed" | tee -a $seqres.full
156 if [ "$(wc -l < "$ROUND2_LOG")" -ne 8 ]; then
157 echo "xfs_repair did not fix everything" | tee -a $seqres.full
159 echo "finished fuzzing" | tee -a "$seqres.full"