1# SPDX-License-Identifier: CDDL-1.0 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. $STF_SUITE/tests/functional/zvol/zvol_common.shlib 30 31# 32# Wait for udev to settle, completely. 33# This is quite discomforting, but there's a race condition here 34# (Amazon 2015.09 x86_64 Release (TEST) is good at triggering this) where the 35# kernel tries to remove zvol device nodes while they're open by [blkid], 36# [zvol_id] or other udev related processes. 37# Calling 'udevadm settle' is not enough: wait for those processes "manually". 38# 39function udev_wait 40{ 41 udevadm trigger --action=change 42 udevadm settle 43 for i in {1..3}; do 44 blkid="$(pgrep blkid | wc -l)" 45 zvol_id="$(pgrep zvol_id | wc -l)" 46 [[ "0" == "$zvol_id" && "0" == "$blkid" ]] && return 47 udevadm settle 48 done 49 log_fail "Wait timeout reached for udev_wait" 50} 51 52# 53# Clean up udev status 54# This is also a problem on "Amazon 2015.09 x86_64 Release (TEST)" where udev, 55# sometimes, does not clean up /dev/zvol symlinks correctly for removed ZVOLs. 56# Prune those links manually, then tell udev to forget them. 57# 58function udev_cleanup 59{ 60 log_note "Pruning broken ZVOL symlinks ..." 61 62 udevadm settle 63 # find all dangling links and delete them 64 find -L "${ZVOL_DEVDIR}" -type l -print -delete 65 # purge those links from udev database 66 udevadm info --cleanup-db 67} 68 69# 70# Verify $device exists and is a block device 71# 72function blockdev_exists # device 73{ 74 typeset device="$1" 75 76 # we wait here instead of doing it in a wrapper around 'zfs set snapdev' 77 # because there are other commands (zfs snap, zfs inherit, zfs destroy) 78 # that can affect device nodes 79 for i in {1..3}; do 80 is_linux && udev_wait 81 block_device_wait "$device" 82 is_disk_device "$device" && return 0 83 done 84 log_fail "$device does not exist as a block device" 85} 86 87# 88# Verify $device does not exist 89# 90function blockdev_missing # device 91{ 92 typeset device="$1" 93 94 # we wait here instead of doing it in a wrapper around 'zfs set snapdev' 95 # because there are other commands (zfs snap, zfs inherit, zfs destroy) 96 # that can affect device nodes 97 for i in {1..3}; do 98 is_linux && udev_wait 99 block_device_wait 100 is_disk_device "$device" || return 0 101 done 102 log_fail "$device exists when not expected" 103} 104 105# 106# Verify $property on $dataset is inherited by $parent and is set to $value 107# 108function verify_inherited # property value dataset parent 109{ 110 typeset property="$1" 111 typeset value="$2" 112 typeset dataset="$3" 113 typeset parent="$4" 114 115 typeset val=$(get_prop "$property" "$dataset") 116 typeset src=$(get_source "$property" "$dataset") 117 if [[ "$val" != "$value" || "$src" != "inherited from $parent" ]]; then 118 log_fail "Dataset $dataset did not inherit $property properly:"\ 119 "expected=$value, value=$val, source=$src." 120 fi 121} 122 123# 124# Create a small partition on $device, then verify if we can access it 125# 126function verify_partition # device 127{ 128 typeset device="$1" 129 130 if ! is_disk_device "$device"; then 131 log_fail "$device is not a block device" 132 fi 133 # create a small dummy partition 134 set_partition 0 "" 1m $device 135 # verify we can access the partition on the device 136 devname="$(readlink -f "$device")" 137 if is_linux || is_freebsd; then 138 is_disk_device "${devname}p1" 139 else 140 is_disk_device "${devname}s0" 141 fi 142} 143