From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Make sure we actually catch bad names in the kernel.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
tests/xfs/749 | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/xfs/749.out | 4 ++
tests/xfs/group | 1 +
3 files changed, 108 insertions(+)
create mode 100755 tests/xfs/749
create mode 100644 tests/xfs/749.out
diff --git a/tests/xfs/749 b/tests/xfs/749
new file mode 100755
index 00000000..de219979
--- /dev/null
+++ b/tests/xfs/749
@@ -0,0 +1,103 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-newer
+# Copyright (c) 2019, Oracle and/or its affiliates. All Rights Reserved.
+#
+# FS QA Test No. 749
+#
+# See if we catch corrupt directory names or attr names with nulls or slashes
+# in them.
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ umount $mntpt > /dev/null 2>&1
+ test -n "$loopdev" && _destroy_loop_device $loopdev > /dev/null 2>&1
+ rm -r -f $imgfile $mntpt $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_fs xfs
+_supported_os Linux
+_require_test
+
+rm -f $seqres.full
+
+imgfile=$TEST_DIR/img-$seq
+mntpt=$TEST_DIR/mount-$seq
+testdir=$mntpt/testdir
+testfile=$mntpt/testfile
+nullstr="too_many_beans"
+slashstr="are_bad_for_you"
+
+# Format image file
+truncate -s 40m $imgfile
+loopdev=$(_create_loop_device $imgfile)
+$MKFS_XFS_PROG $loopdev >> $seqres.full
+
+# Mount image file
+mkdir -p $mntpt
+mount $loopdev $mntpt
+
+# Create directory entries
+mkdir -p $testdir
+touch $testdir/$nullstr
+touch $testdir/$slashstr
+
+# Create attrs
+touch $testfile
+$ATTR_PROG -s $nullstr -V heh $testfile >> $seqres.full
+$ATTR_PROG -s $slashstr -V heh $testfile >> $seqres.full
+
+# Corrupt the entries
+umount $mntpt
+_destroy_loop_device $loopdev
+cp $imgfile $imgfile.old
+sed -b \
+ -e "s/$nullstr/too_many\x00beans/g" \
+ -e "s/$slashstr/are_bad\/for_you/g" \
+ -i $imgfile
+test "$(md5sum < $imgfile)" != "$(md5sum < $imgfile.old)" ||
+ _fail "sed failed to change the image file?"
+rm -f $imgfile.old
+loopdev=$(_create_loop_device $imgfile)
+mount $loopdev $mntpt
+
+# Try to access the corrupt metadata
+ls $testdir >> $seqres.full 2> $tmp.err
+attr -l $testfile >> $seqres.full 2>> $tmp.err
+cat $tmp.err | _filter_test_dir
+
+# Does scrub complain about this?
+if _supports_xfs_scrub $mntpt $loopdev; then
+ $XFS_SCRUB_PROG -n $mntpt >> $seqres.full 2>&1
+ res=$?
+ test $((res & 1)) -eq 0 && \
+ echo "scrub failed to report corruption ($res)"
+fi
+
+# Does repair complain about this?
+umount $mntpt
+$XFS_REPAIR_PROG -n $loopdev >> $seqres.full 2>&1
+res=$?
+test $res -eq 1 || \
+ echo "repair failed to report corruption ($res)"
+
+_destroy_loop_device $loopdev
+loopdev=
+
+# success, all done
+status=0
+exit
diff --git a/tests/xfs/749.out b/tests/xfs/749.out
new file mode 100644
index 00000000..db704c87
--- /dev/null
+++ b/tests/xfs/749.out
@@ -0,0 +1,4 @@
+QA output created by 749
+ls: cannot access 'TEST_DIR/mount-749/testdir': Structure needs cleaning
+attr_list: Structure needs cleaning
+Could not list "(null)" for TEST_DIR/mount-749/testfile
diff --git a/tests/xfs/group b/tests/xfs/group
index f4ebcd8c..9600cb4e 100644
--- a/tests/xfs/group
+++ b/tests/xfs/group
@@ -507,3 +507,4 @@
509 auto ioctl
510 auto ioctl quick
511 auto quick quota
+749 auto quick fuzzers
