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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2016 CTERA Networks. All Rights Reserved.
#
# FSQA Test No. 348
#
# Test handling of invalid inode modes
#
# Set all possible file type values for different types of files
# and verify that xfs_repair detects the correct errors.
#
. ./common/preamble
_begin_fstest auto quick fuzzers repair
# Import common functions.
. ./common/filter
. ./common/repair
# real QA test starts here
_supported_fs xfs
_require_scratch
# This test will corrupt fs intentionally, so there will be WARNINGs
# in dmesg as expected
_disable_dmesg_check
_scratch_mkfs >>$seqres.full 2>&1
_scratch_mount
# Create our test files.
testdir=$SCRATCH_MNT/test
mkdir -p $testdir
mkdir $testdir/DIR
echo 123 > $testdir/DATA
touch $testdir/EMPTY
ln -s $testdir/DATA $testdir/SYMLINK
mknod $testdir/CHRDEV c 1 1
mknod $testdir/BLKDEV b 1 1
mknod $testdir/FIFO p
_xfs_has_feature $SCRATCH_MNT ftype && FTYPE_FEATURE=1
# Record test dir inode for xfs_repair filter
inode_filter=$tmp.sed
rm -f $inode_filter
pino=$(ls -id $testdir | awk '{print $1}')
echo "s/inode $pino/PARENT_INO/" >> $inode_filter
echo "s/directory $pino/directory PARENT_INO/" >> $inode_filter
inodes=""
# Record inode numbers for xfs_db commands and xfs_repair filter
for f in DIR DATA EMPTY SYMLINK CHRDEV BLKDEV FIFO; do
ino=$(ls -id $testdir/$f | awk '{print $1}')
inodes="$inodes $ino"
echo "s/inode $ino/${f}_INO/" >> $inode_filter
done
_scratch_unmount
# Possible mode file type values (mode & S_IFMT) >> 12
dtypes="0 1 2 3 4 5 6 7 10 11 12 13 14 15 16 17"
echo "===== Find inode by file type:"
for dt in $dtypes; do
# Set all our test files to dt value
for ino in $inodes; do
_scratch_xfs_db -c "inode $ino" -c "print core.mode" | \
grep -q "0${dt}0...$" && \
(echo "dt=$dt => inode $ino" | sed -f $inode_filter)
done
done
for dt in $dtypes; do
echo
echo "===== Setting dt=$dt to all files:"
# Set all our test files to dt value
for ino in $inodes; do
_scratch_xfs_db -x -c "inode $ino" -c "write core.mode 0${dt}0644"
done
# Repair should detect the inconsistencies
# For invalid dt values, all files would have been junked.
# For valid dt values, one test file is expected to be valid.
# The rest would either have wrong format or non matching dir ftype.
_scratch_xfs_repair -n 2>&1 | tee -a $seqres.full | \
_filter_repair | grep "^would have junked" | sed -f $inode_filter | sort -u
# If ftype feature is enabled, when setting file type to one of the
# special types (i.e. FIFO(1), CHRDEV(2),BLKDEV(6),SOCKET(14)),
# xfs_repair is expected to detect ftype mismatch error. Otherewise,
# xfs_repair is not expected to detect ftype mismatch error.
if [ "$FTYPE_FEATURE" = 1 ] && (echo ':1:2:6:14:' | grep -q ":$dt:"); then
_scratch_xfs_repair -n 2>&1 | grep -q "^would fix ftype mismatch" || \
echo "xfs_repair should fix ftype mismatch"
else
_scratch_xfs_repair -n 2>&1 | grep -q -v "^would fix ftype mismatch" || \
echo "xfs_repair should not fix ftype mismatch"
fi
_scratch_mount
for file in DIR DATA EMPTY SYMLINK CHRDEV BLKDEV FIFO; do
rm -f $tmp.stat.err
ftype=$(stat --printf=%F $testdir/$file 2>$tmp.stat.err)
if [ -s $tmp.stat.err ]; then
cat $tmp.stat.err | _filter_stat
else
echo "stat: '$testdir/$file' is a $ftype"
# Verify that readlink of a file posing as a symlink
# and ls of a file posing as a directory does not blow up.
# NOTE that ls DOES ASSERT with kernel 4.9 and XFS_DEBUG=y
# on malformed directory
if [ -d $testdir/$file ]; then
ls $testdir/$file &> /dev/null
elif [ -h $testdir/$file ]; then
readlink $testdir/$file &> /dev/null
fi
fi | _filter_scratch
done
_scratch_unmount
done
# Repair should detect and junk all test files
_scratch_xfs_repair 2>&1 >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
status=0
exit
|
