1#!/bin/ksh -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or https://opensource.org/licenses/CDDL-1.0.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2017, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
25#
26
27. $STF_SUITE/include/libtest.shlib
28. $STF_SUITE/tests/functional/cli_root/zfs_set/zfs_set_common.kshlib
29. $STF_SUITE/tests/functional/zvol/zvol_common.shlib
30. $STF_SUITE/tests/functional/zvol/zvol_misc/zvol_misc_common.kshlib
31
32#
33# DESCRIPTION:
34# Verify that ZFS volume property "snapdev" works as intended.
35#
36# STRATEGY:
37# 1. Verify "snapdev" property does not accept invalid values
38# 2. Verify "snapdev" adds and removes device nodes when updated
39# 3. Verify "snapdev" is inherited correctly
40#
41
42verify_runnable "global"
43
44function cleanup
45{
46	datasetexists $VOLFS && destroy_dataset $VOLFS -r
47	datasetexists $ZVOL && destroy_dataset $ZVOL -r
48	log_must zfs inherit snapdev $TESTPOOL
49	block_device_wait
50	is_linux && udev_cleanup
51}
52
53log_assert "Verify that ZFS volume property 'snapdev' works as expected."
54log_onexit cleanup
55
56VOLFS="$TESTPOOL/volfs"
57ZVOL="$TESTPOOL/vol"
58SNAP="$ZVOL@snap"
59SNAPDEV="${ZVOL_DEVDIR}/$SNAP"
60SUBZVOL="$VOLFS/subvol"
61SUBSNAP="$SUBZVOL@snap"
62SUBSNAPDEV="${ZVOL_DEVDIR}/$SUBSNAP"
63
64log_must zfs create -o mountpoint=none $VOLFS
65log_must zfs create -V $VOLSIZE -s $ZVOL
66log_must zfs create -V $VOLSIZE -s $SUBZVOL
67
68# 1. Verify "snapdev" property does not accept invalid values
69typeset badvals=("off" "on" "1" "nope" "-")
70for badval in ${badvals[@]}
71do
72	log_mustnot zfs set snapdev="$badval" $ZVOL
73done
74
75# 2. Verify "snapdev" adds and removes device nodes when updated
76# 2.1 First create a snapshot then change snapdev property
77log_must zfs snapshot $SNAP
78log_must zfs set snapdev=visible $ZVOL
79blockdev_exists $SNAPDEV
80log_must zfs set snapdev=hidden $ZVOL
81blockdev_missing $SNAPDEV
82log_must zfs destroy $SNAP
83# 2.2 First set snapdev property then create a snapshot
84log_must zfs set snapdev=visible $ZVOL
85log_must zfs snapshot $SNAP
86blockdev_exists $SNAPDEV
87log_must zfs destroy $SNAP
88blockdev_missing $SNAPDEV
89# 2.3 Verify setting to the same value multiple times does not lead to issues
90log_must zfs snapshot $SNAP
91log_must zfs set snapdev=visible $ZVOL
92blockdev_exists $SNAPDEV
93log_must zfs set snapdev=visible $ZVOL
94blockdev_exists $SNAPDEV
95log_must zfs set snapdev=hidden $ZVOL
96blockdev_missing $SNAPDEV
97log_must zfs set snapdev=hidden $ZVOL
98blockdev_missing $SNAPDEV
99log_must zfs destroy $SNAP
100
101# 3. Verify "snapdev" is inherited correctly
102# 3.1 Check snapdev=visible case
103log_must zfs snapshot $SNAP
104log_must zfs inherit snapdev $ZVOL
105log_must zfs set snapdev=visible $TESTPOOL
106verify_inherited 'snapdev' 'visible' $ZVOL $TESTPOOL
107blockdev_exists $SNAPDEV
108# 3.2 Check snapdev=hidden case
109log_must zfs set snapdev=hidden $TESTPOOL
110verify_inherited 'snapdev' 'hidden' $ZVOL $TESTPOOL
111blockdev_missing $SNAPDEV
112# 3.3 Check inheritance on multiple levels
113log_must zfs snapshot $SUBSNAP
114log_must zfs inherit snapdev $SUBZVOL
115log_must zfs set snapdev=hidden $VOLFS
116log_must zfs set snapdev=visible $TESTPOOL
117verify_inherited 'snapdev' 'hidden' $SUBZVOL $VOLFS
118blockdev_missing $SUBSNAPDEV
119blockdev_exists $SNAPDEV
120
121log_pass "ZFS volume property 'snapdev' works as expected"
122