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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016 Red Hat Inc., All Rights Reserved.
#
# FS QA Test 355
#
# Test clear of suid/sgid on direct write.
#
. ./common/preamble
_begin_fstest auto quick perms
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs generic
_require_test
_require_user
_require_odirect
_require_chown
testfile=$TEST_DIR/$seq.test
rm -f $testfile
do_io()
{
su $qa_user -c "$XFS_IO_PROG -d -c 'pwrite 0 4k' $testfile" \
>>$seqres.full
}
echo "Check that suid/sgid bits are cleared after direct write"
# create testfile and set base ownership & permission
echo "this is a test" >> $testfile
chmod 644 $testfile
chown $qa_user:$qa_user $testfile
echo "== with no exec perm"
chmod ug+s $testfile
echo -n "before: "; stat -c '%A' $testfile
do_io
echo -n "after: "; stat -c '%A' $testfile
echo "== with user exec perm"
chmod ug+s $testfile
chmod u+x $testfile
echo -n "before: "; stat -c '%A' $testfile
do_io
echo -n "after: "; stat -c '%A' $testfile
echo "== with group exec perm"
chmod ug+s $testfile
chmod g+x $testfile
chmod u-x $testfile
echo -n "before: "; stat -c '%A' $testfile
do_io
echo -n "after: "; stat -c '%A' $testfile
echo "== with user+group exec perm"
chmod ug+s $testfile
chmod u+x $testfile
echo -n "before: "; stat -c '%A' $testfile
do_io
echo -n "after: "; stat -c '%A' $testfile
# success, all done
status=0
exit
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