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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2016 Google, Inc. All Rights Reserved.
#
# FS QA Test generic/395
#
# Test setting and getting encryption policies.
#
. ./common/preamble
_begin_fstest auto quick encrypt
# Import common functions.
. ./common/filter
. ./common/encrypt
# real QA test starts here
_supported_fs generic
_require_scratch_encryption
_require_xfs_io_command "get_encpolicy"
_require_user
_scratch_mkfs_encrypted &>> $seqres.full
_scratch_mount
# Should be able to set an encryption policy on an empty directory
empty_dir=$SCRATCH_MNT/empty_dir
echo -e "\n*** Setting encryption policy on empty directory ***"
mkdir $empty_dir
_get_encpolicy $empty_dir |& _filter_scratch
_set_encpolicy $empty_dir 0000111122223333
_get_encpolicy $empty_dir | _filter_scratch
# Should be able to set the same policy again, but not a different one.
echo -e "\n*** Setting encryption policy again ***"
_set_encpolicy $empty_dir 0000111122223333
_get_encpolicy $empty_dir | _filter_scratch
_set_encpolicy $empty_dir 4444555566667777 |& _filter_scratch
_get_encpolicy $empty_dir | _filter_scratch
# Should *not* be able to set an encryption policy on a nonempty directory
nonempty_dir=$SCRATCH_MNT/nonempty_dir
echo -e "\n*** Setting encryption policy on nonempty directory ***"
mkdir $nonempty_dir
touch $nonempty_dir/file
_set_encpolicy $nonempty_dir |& _filter_scratch
_get_encpolicy $nonempty_dir |& _filter_scratch
# Should *not* be able to set an encryption policy on a nondirectory file, even
# an empty one. Regression test for 002ced4be642: "fscrypto: only allow setting
# encryption policy on directories".
nondirectory=$SCRATCH_MNT/nondirectory
echo -e "\n*** Setting encryption policy on nondirectory ***"
touch $nondirectory
_set_encpolicy $nondirectory |& _filter_scratch
_get_encpolicy $nondirectory |& _filter_scratch
# Should *not* be able to set an encryption policy on another user's directory.
# Regression test for 163ae1c6ad62: "fscrypto: add authorization check for
# setting encryption policy".
unauthorized_dir=$SCRATCH_MNT/unauthorized_dir
echo -e "\n*** Setting encryption policy on another user's directory ***"
mkdir $unauthorized_dir
_user_do_set_encpolicy $unauthorized_dir |& _filter_scratch
_get_encpolicy $unauthorized_dir |& _filter_scratch
# Should *not* be able to set an encryption policy on a directory on a
# filesystem mounted readonly. Regression test for ba63f23d69a3: "fscrypto:
# require write access to mount to set encryption policy". Test both a regular
# readonly filesystem and a readonly bind mount of a read-write filesystem.
echo -e "\n*** Setting encryption policy on readonly filesystem ***"
mkdir $SCRATCH_MNT/ro_dir $SCRATCH_MNT/ro_bind_mnt
_scratch_remount ro
_set_encpolicy $SCRATCH_MNT/ro_dir |& _filter_scratch
_get_encpolicy $SCRATCH_MNT/ro_dir |& _filter_scratch
_scratch_remount rw
mount --bind $SCRATCH_MNT $SCRATCH_MNT/ro_bind_mnt
mount -o remount,ro,bind $SCRATCH_MNT/ro_bind_mnt
_set_encpolicy $SCRATCH_MNT/ro_bind_mnt/ro_dir |& _filter_scratch
_get_encpolicy $SCRATCH_MNT/ro_bind_mnt/ro_dir |& _filter_scratch
umount $SCRATCH_MNT/ro_bind_mnt
# success, all done
status=0
exit
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