4 # If underlying upper file is immutable, it should stays
5 # untouchable in the overlayfs mount.
7 # Kernel commit below fixed it.
8 # f2b20f6ee842 vfs: move permission checking into ...
10 # This reproducer was originally written by
11 # Miklos Szeredi <mszeredi@redhat.com>
13 #-----------------------------------------------------------------------
14 # Copyright (c) 2017 Red Hat Inc. All Rights Reserved.
16 # This program is free software; you can redistribute it and/or
17 # modify it under the terms of the GNU General Public License as
18 # published by the Free Software Foundation.
20 # This program is distributed in the hope that it would be useful,
21 # but WITHOUT ANY WARRANTY; without even the implied warranty of
22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 # GNU General Public License for more details.
25 # You should have received a copy of the GNU General Public License
26 # along with this program; if not, write the Free Software Foundation,
27 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
28 #-----------------------------------------------------------------------
32 seqres=$RESULT_DIR/$seq
33 echo "QA output created by $seq"
37 status=1 # failure is the default!
38 trap "_cleanup; exit \$status" 0 1 2 3 15
43 $CHATTR_PROG -i $upperdir/foo
47 # get standard environment, filters and checks
51 # remove previous $seqres.full before test
54 # real QA test starts here
56 # Modify as appropriate.
62 # Remove all files from previous tests
65 # Preparing immutable file
66 upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER
69 $CHATTR_PROG +i $upperdir/foo
74 # Touching immutable file in overlay, should fail.
75 # Not filtering output here because of errno returned
76 # varies among kernel versions:
77 # touch: setting times of 'foo': Operation not permitted
78 # touch: cannot touch 'foo': Permission denied
79 if touch $SCRATCH_MNT/foo > /dev/null 2>&1 ; then
80 echo "Test Fail, you can't change an immutable file"
82 echo "Silence is golden"