mirror of
https://github.com/linux-apfs/apfstests.git
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Dave Chinner
0c1a95d067
Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>
73 lines
1.5 KiB
Bash
Executable File
73 lines
1.5 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2017 Red Hat Inc. All Rights Reserved.
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#
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# FS QA Test 027
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#
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# If underlying upper file is immutable, it should stays
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# untouchable in the overlayfs mount.
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#
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# Kernel commit below fixed it.
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# f2b20f6ee842 vfs: move permission checking into ...
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#
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# This reproducer was originally written by
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# Miklos Szeredi <mszeredi@redhat.com>
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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$CHATTR_PROG -i $upperdir/foo
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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# Modify as appropriate.
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_supported_fs overlay
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_supported_os Linux
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_require_scratch
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_require_chattr i
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# Remove all files from previous tests
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_scratch_mkfs
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# Preparing immutable file
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upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER
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mkdir -p $upperdir
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touch $upperdir/foo
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$CHATTR_PROG +i $upperdir/foo
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# Mounting overlay
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_scratch_mount
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# Touching immutable file in overlay, should fail.
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# Not filtering output here because of errno returned
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# varies among kernel versions:
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# touch: setting times of 'foo': Operation not permitted
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# touch: cannot touch 'foo': Permission denied
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if touch $SCRATCH_MNT/foo > /dev/null 2>&1 ; then
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echo "Test Fail, you can't change an immutable file"
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else
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echo "Silence is golden"
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fi
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# success, all done
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status=0
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exit
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