mirror_zfs/tests/zfs-tests/include/libtest.shlib
George Wilson c15d36c674
Remove dependency on sharetab file and refactor sharing logic
== Motivation and Context

The current implementation of 'sharenfs' and 'sharesmb' relies on
the use of the sharetab file. The use of this file is os-specific
and not required by linux or freebsd. Currently the code must
maintain updates to this file which adds complexity and presents
a significant performance impact when sharing many datasets. In
addition, concurrently running 'zfs sharenfs' command results in
missing entries in the sharetab file leading to unexpected failures.

== Description

This change removes the sharetab logic from the linux and freebsd
implementation of 'sharenfs' and 'sharesmb'. It still preserves an
os-specific library which contains the logic required for sharing
NFS or SMB. The following entry points exist in the vastly simplified
libshare library:

- sa_enable_share -- shares a dataset but may not commit the change
- sa_disable_share -- unshares a dataset but may not commit the change
- sa_is_shared -- determine if a dataset is shared
- sa_commit_share -- notify NFS/SMB subsystem to commit the shares
- sa_validate_shareopts -- determine if sharing options are valid

The sa_commit_share entry point is provided as a performance enhancement
and is not required. The sa_enable_share/sa_disable_share may commit
the share as part of the implementation. Libshare provides a framework
for both NFS and SMB but some operating systems may not fully support
these protocols or all features of the protocol.

NFS Operation:
For linux, libshare updates /etc/exports.d/zfs.exports to add
and remove shares and then commits the changes by invoking
'exportfs -r'. This file, is automatically read by the kernel NFS
implementation which makes for better integration with the NFS systemd
service. For FreeBSD, libshare updates /etc/zfs/exports to add and
remove shares and then commits the changes by sending a SIGHUP to
mountd.

SMB Operation:
For linux, libshare adds and removes files in /var/lib/samba/usershares
by calling the 'net' command directly. There is no need to commit the
changes. FreeBSD does not support SMB.

== Performance Results

To test sharing performance we created a pool with an increasing number
of datasets and invoked various zfs actions that would enable and
disable sharing. The performance testing was limited to NFS sharing.
The following tests were performed on an 8 vCPU system with 128GB and
a pool comprised of 4 50GB SSDs:

Scale testing:
- Share all filesystems in parallel -- zfs sharenfs=on <dataset> &
- Unshare all filesystems in parallel -- zfs sharenfs=off <dataset> &

Functional testing:
- share each filesystem serially -- zfs share -a
- unshare each filesystem serially -- zfs unshare -a
- reset sharenfs property and unshare -- zfs inherit -r sharenfs <pool>

For 'zfs sharenfs=on' scale testing we saw an average reduction in time
of 89.43% and for 'zfs sharenfs=off' we saw an average reduction in time
of 83.36%.

Functional testing also shows a huge improvement:
- zfs share -- 97.97% reduction in time
- zfs unshare -- 96.47% reduction in time
- zfs inhert -r sharenfs -- 99.01% reduction in time

Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Bryant G. Ly <bryangly@gmail.com>
Signed-off-by: George Wilson <gwilson@delphix.com>
External-Issue: DLPX-68690
Closes #1603
Closes #7692
Closes #7943
Closes #10300
2020-07-13 09:19:18 -07:00

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#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright (c) 2009, Sun Microsystems Inc. All rights reserved.
# Copyright (c) 2012, 2020, Delphix. All rights reserved.
# Copyright (c) 2017, Tim Chase. All rights reserved.
# Copyright (c) 2017, Nexenta Systems Inc. All rights reserved.
# Copyright (c) 2017, Lawrence Livermore National Security LLC.
# Copyright (c) 2017, Datto Inc. All rights reserved.
# Copyright (c) 2017, Open-E Inc. All rights reserved.
# Use is subject to license terms.
#
. ${STF_TOOLS}/include/logapi.shlib
. ${STF_SUITE}/include/math.shlib
. ${STF_SUITE}/include/blkdev.shlib
. ${STF_SUITE}/include/tunables.cfg
#
# Apply constrained path when available. This is required since the
# PATH may have been modified by sudo's secure_path behavior.
#
if [ -n "$STF_PATH" ]; then
PATH="$STF_PATH"
fi
#
# Generic dot version comparison function
#
# Returns success when version $1 is greater than or equal to $2.
#
function compare_version_gte
{
if [[ "$(printf "$1\n$2" | sort -V | tail -n1)" == "$1" ]]; then
return 0
else
return 1
fi
}
# Linux kernel version comparison function
#
# $1 Linux version ("4.10", "2.6.32") or blank for installed Linux version
#
# Used for comparison: if [ $(linux_version) -ge $(linux_version "2.6.32") ]
#
function linux_version
{
typeset ver="$1"
[[ -z "$ver" ]] && ver=$(uname -r | grep -Eo "^[0-9]+\.[0-9]+\.[0-9]+")
typeset version=$(echo $ver | cut -d '.' -f 1)
typeset major=$(echo $ver | cut -d '.' -f 2)
typeset minor=$(echo $ver | cut -d '.' -f 3)
[[ -z "$version" ]] && version=0
[[ -z "$major" ]] && major=0
[[ -z "$minor" ]] && minor=0
echo $((version * 10000 + major * 100 + minor))
}
# Determine if this is a Linux test system
#
# Return 0 if platform Linux, 1 if otherwise
function is_linux
{
if [[ $(uname -o) == "GNU/Linux" ]]; then
return 0
else
return 1
fi
}
# Determine if this is an illumos test system
#
# Return 0 if platform illumos, 1 if otherwise
function is_illumos
{
if [[ $(uname -o) == "illumos" ]]; then
return 0
else
return 1
fi
}
# Determine if this is a FreeBSD test system
#
# Return 0 if platform FreeBSD, 1 if otherwise
function is_freebsd
{
if [[ $(uname -o) == "FreeBSD" ]]; then
return 0
else
return 1
fi
}
# Determine if this is a DilOS test system
#
# Return 0 if platform DilOS, 1 if otherwise
function is_dilos
{
typeset ID=""
[[ -f /etc/os-release ]] && . /etc/os-release
if [[ $ID == "dilos" ]]; then
return 0
else
return 1
fi
}
# Determine if this is a 32-bit system
#
# Return 0 if platform is 32-bit, 1 if otherwise
function is_32bit
{
if [[ $(getconf LONG_BIT) == "32" ]]; then
return 0
else
return 1
fi
}
# Determine if kmemleak is enabled
#
# Return 0 if kmemleak is enabled, 1 if otherwise
function is_kmemleak
{
if is_linux && [[ -e /sys/kernel/debug/kmemleak ]]; then
return 0
else
return 1
fi
}
# Determine whether a dataset is mounted
#
# $1 dataset name
# $2 filesystem type; optional - defaulted to zfs
#
# Return 0 if dataset is mounted; 1 if unmounted; 2 on error
function ismounted
{
typeset fstype=$2
[[ -z $fstype ]] && fstype=zfs
typeset out dir name ret
case $fstype in
zfs)
if [[ "$1" == "/"* ]] ; then
for out in $(zfs mount | awk '{print $2}'); do
[[ $1 == $out ]] && return 0
done
else
for out in $(zfs mount | awk '{print $1}'); do
[[ $1 == $out ]] && return 0
done
fi
;;
ufs|nfs)
if is_freebsd; then
mount -pt $fstype | while read dev dir _t _flags; do
[[ "$1" == "$dev" || "$1" == "$dir" ]] && return 0
done
else
out=$(df -F $fstype $1 2>/dev/null)
ret=$?
(($ret != 0)) && return $ret
dir=${out%%\(*}
dir=${dir%% *}
name=${out##*\(}
name=${name%%\)*}
name=${name%% *}
[[ "$1" == "$dir" || "$1" == "$name" ]] && return 0
fi
;;
ext*)
out=$(df -t $fstype $1 2>/dev/null)
return $?
;;
zvol)
if [[ -L "$ZVOL_DEVDIR/$1" ]]; then
link=$(readlink -f $ZVOL_DEVDIR/$1)
[[ -n "$link" ]] && \
mount | grep -q "^$link" && \
return 0
fi
;;
esac
return 1
}
# Return 0 if a dataset is mounted; 1 otherwise
#
# $1 dataset name
# $2 filesystem type; optional - defaulted to zfs
function mounted
{
ismounted $1 $2
(($? == 0)) && return 0
return 1
}
# Return 0 if a dataset is unmounted; 1 otherwise
#
# $1 dataset name
# $2 filesystem type; optional - defaulted to zfs
function unmounted
{
ismounted $1 $2
(($? == 1)) && return 0
return 1
}
# split line on ","
#
# $1 - line to split
function splitline
{
echo $1 | sed "s/,/ /g"
}
function default_setup
{
default_setup_noexit "$@"
log_pass
}
function default_setup_no_mountpoint
{
default_setup_noexit "$1" "$2" "$3" "yes"
log_pass
}
#
# Given a list of disks, setup storage pools and datasets.
#
function default_setup_noexit
{
typeset disklist=$1
typeset container=$2
typeset volume=$3
typeset no_mountpoint=$4
log_note begin default_setup_noexit
if is_global_zone; then
if poolexists $TESTPOOL ; then
destroy_pool $TESTPOOL
fi
[[ -d /$TESTPOOL ]] && rm -rf /$TESTPOOL
log_must zpool create -f $TESTPOOL $disklist
else
reexport_pool
fi
rm -rf $TESTDIR || log_unresolved Could not remove $TESTDIR
mkdir -p $TESTDIR || log_unresolved Could not create $TESTDIR
log_must zfs create $TESTPOOL/$TESTFS
if [[ -z $no_mountpoint ]]; then
log_must zfs set mountpoint=$TESTDIR $TESTPOOL/$TESTFS
fi
if [[ -n $container ]]; then
rm -rf $TESTDIR1 || \
log_unresolved Could not remove $TESTDIR1
mkdir -p $TESTDIR1 || \
log_unresolved Could not create $TESTDIR1
log_must zfs create $TESTPOOL/$TESTCTR
log_must zfs set canmount=off $TESTPOOL/$TESTCTR
log_must zfs create $TESTPOOL/$TESTCTR/$TESTFS1
if [[ -z $no_mountpoint ]]; then
log_must zfs set mountpoint=$TESTDIR1 \
$TESTPOOL/$TESTCTR/$TESTFS1
fi
fi
if [[ -n $volume ]]; then
if is_global_zone ; then
log_must zfs create -V $VOLSIZE $TESTPOOL/$TESTVOL
block_device_wait
else
log_must zfs create $TESTPOOL/$TESTVOL
fi
fi
}
#
# Given a list of disks, setup a storage pool, file system and
# a container.
#
function default_container_setup
{
typeset disklist=$1
default_setup "$disklist" "true"
}
#
# Given a list of disks, setup a storage pool,file system
# and a volume.
#
function default_volume_setup
{
typeset disklist=$1
default_setup "$disklist" "" "true"
}
#
# Given a list of disks, setup a storage pool,file system,
# a container and a volume.
#
function default_container_volume_setup
{
typeset disklist=$1
default_setup "$disklist" "true" "true"
}
#
# Create a snapshot on a filesystem or volume. Defaultly create a snapshot on
# filesystem
#
# $1 Existing filesystem or volume name. Default, $TESTPOOL/$TESTFS
# $2 snapshot name. Default, $TESTSNAP
#
function create_snapshot
{
typeset fs_vol=${1:-$TESTPOOL/$TESTFS}
typeset snap=${2:-$TESTSNAP}
[[ -z $fs_vol ]] && log_fail "Filesystem or volume's name is undefined."
[[ -z $snap ]] && log_fail "Snapshot's name is undefined."
if snapexists $fs_vol@$snap; then
log_fail "$fs_vol@$snap already exists."
fi
datasetexists $fs_vol || \
log_fail "$fs_vol must exist."
log_must zfs snapshot $fs_vol@$snap
}
#
# Create a clone from a snapshot, default clone name is $TESTCLONE.
#
# $1 Existing snapshot, $TESTPOOL/$TESTFS@$TESTSNAP is default.
# $2 Clone name, $TESTPOOL/$TESTCLONE is default.
#
function create_clone # snapshot clone
{
typeset snap=${1:-$TESTPOOL/$TESTFS@$TESTSNAP}
typeset clone=${2:-$TESTPOOL/$TESTCLONE}
[[ -z $snap ]] && \
log_fail "Snapshot name is undefined."
[[ -z $clone ]] && \
log_fail "Clone name is undefined."
log_must zfs clone $snap $clone
}
#
# Create a bookmark of the given snapshot. Defaultly create a bookmark on
# filesystem.
#
# $1 Existing filesystem or volume name. Default, $TESTFS
# $2 Existing snapshot name. Default, $TESTSNAP
# $3 bookmark name. Default, $TESTBKMARK
#
function create_bookmark
{
typeset fs_vol=${1:-$TESTFS}
typeset snap=${2:-$TESTSNAP}
typeset bkmark=${3:-$TESTBKMARK}
[[ -z $fs_vol ]] && log_fail "Filesystem or volume's name is undefined."
[[ -z $snap ]] && log_fail "Snapshot's name is undefined."
[[ -z $bkmark ]] && log_fail "Bookmark's name is undefined."
if bkmarkexists $fs_vol#$bkmark; then
log_fail "$fs_vol#$bkmark already exists."
fi
datasetexists $fs_vol || \
log_fail "$fs_vol must exist."
snapexists $fs_vol@$snap || \
log_fail "$fs_vol@$snap must exist."
log_must zfs bookmark $fs_vol@$snap $fs_vol#$bkmark
}
#
# Create a temporary clone result of an interrupted resumable 'zfs receive'
# $1 Destination filesystem name. Must not exist, will be created as the result
# of this function along with its %recv temporary clone
# $2 Source filesystem name. Must not exist, will be created and destroyed
#
function create_recv_clone
{
typeset recvfs="$1"
typeset sendfs="${2:-$TESTPOOL/create_recv_clone}"
typeset snap="$sendfs@snap1"
typeset incr="$sendfs@snap2"
typeset mountpoint="$TESTDIR/create_recv_clone"
typeset sendfile="$TESTDIR/create_recv_clone.zsnap"
[[ -z $recvfs ]] && log_fail "Recv filesystem's name is undefined."
datasetexists $recvfs && log_fail "Recv filesystem must not exist."
datasetexists $sendfs && log_fail "Send filesystem must not exist."
log_must zfs create -o mountpoint="$mountpoint" $sendfs
log_must zfs snapshot $snap
log_must eval "zfs send $snap | zfs recv -u $recvfs"
log_must mkfile 1m "$mountpoint/data"
log_must zfs snapshot $incr
log_must eval "zfs send -i $snap $incr | dd bs=10K count=1 \
iflag=fullblock > $sendfile"
log_mustnot eval "zfs recv -su $recvfs < $sendfile"
destroy_dataset "$sendfs" "-r"
log_must rm -f "$sendfile"
if [[ $(get_prop 'inconsistent' "$recvfs/%recv") -ne 1 ]]; then
log_fail "Error creating temporary $recvfs/%recv clone"
fi
}
function default_mirror_setup
{
default_mirror_setup_noexit $1 $2 $3
log_pass
}
#
# Given a pair of disks, set up a storage pool and dataset for the mirror
# @parameters: $1 the primary side of the mirror
# $2 the secondary side of the mirror
# @uses: ZPOOL ZFS TESTPOOL TESTFS
function default_mirror_setup_noexit
{
readonly func="default_mirror_setup_noexit"
typeset primary=$1
typeset secondary=$2
[[ -z $primary ]] && \
log_fail "$func: No parameters passed"
[[ -z $secondary ]] && \
log_fail "$func: No secondary partition passed"
[[ -d /$TESTPOOL ]] && rm -rf /$TESTPOOL
log_must zpool create -f $TESTPOOL mirror $@
log_must zfs create $TESTPOOL/$TESTFS
log_must zfs set mountpoint=$TESTDIR $TESTPOOL/$TESTFS
}
#
# create a number of mirrors.
# We create a number($1) of 2 way mirrors using the pairs of disks named
# on the command line. These mirrors are *not* mounted
# @parameters: $1 the number of mirrors to create
# $... the devices to use to create the mirrors on
# @uses: ZPOOL ZFS TESTPOOL
function setup_mirrors
{
typeset -i nmirrors=$1
shift
while ((nmirrors > 0)); do
log_must test -n "$1" -a -n "$2"
[[ -d /$TESTPOOL$nmirrors ]] && rm -rf /$TESTPOOL$nmirrors
log_must zpool create -f $TESTPOOL$nmirrors mirror $1 $2
shift 2
((nmirrors = nmirrors - 1))
done
}
#
# create a number of raidz pools.
# We create a number($1) of 2 raidz pools using the pairs of disks named
# on the command line. These pools are *not* mounted
# @parameters: $1 the number of pools to create
# $... the devices to use to create the pools on
# @uses: ZPOOL ZFS TESTPOOL
function setup_raidzs
{
typeset -i nraidzs=$1
shift
while ((nraidzs > 0)); do
log_must test -n "$1" -a -n "$2"
[[ -d /$TESTPOOL$nraidzs ]] && rm -rf /$TESTPOOL$nraidzs
log_must zpool create -f $TESTPOOL$nraidzs raidz $1 $2
shift 2
((nraidzs = nraidzs - 1))
done
}
#
# Destroy the configured testpool mirrors.
# the mirrors are of the form ${TESTPOOL}{number}
# @uses: ZPOOL ZFS TESTPOOL
function destroy_mirrors
{
default_cleanup_noexit
log_pass
}
#
# Given a minimum of two disks, set up a storage pool and dataset for the raid-z
# $1 the list of disks
#
function default_raidz_setup
{
typeset disklist="$*"
disks=(${disklist[*]})
if [[ ${#disks[*]} -lt 2 ]]; then
log_fail "A raid-z requires a minimum of two disks."
fi
[[ -d /$TESTPOOL ]] && rm -rf /$TESTPOOL
log_must zpool create -f $TESTPOOL raidz $disklist
log_must zfs create $TESTPOOL/$TESTFS
log_must zfs set mountpoint=$TESTDIR $TESTPOOL/$TESTFS
log_pass
}
#
# Common function used to cleanup storage pools and datasets.
#
# Invoked at the start of the test suite to ensure the system
# is in a known state, and also at the end of each set of
# sub-tests to ensure errors from one set of tests doesn't
# impact the execution of the next set.
function default_cleanup
{
default_cleanup_noexit
log_pass
}
#
# Utility function used to list all available pool names.
#
# NOTE: $KEEP is a variable containing pool names, separated by a newline
# character, that must be excluded from the returned list.
#
function get_all_pools
{
zpool list -H -o name | grep -Fvx "$KEEP" | grep -v "$NO_POOLS"
}
function default_cleanup_noexit
{
typeset pool=""
#
# Destroying the pool will also destroy any
# filesystems it contains.
#
if is_global_zone; then
zfs unmount -a > /dev/null 2>&1
ALL_POOLS=$(get_all_pools)
# Here, we loop through the pools we're allowed to
# destroy, only destroying them if it's safe to do
# so.
while [ ! -z ${ALL_POOLS} ]
do
for pool in ${ALL_POOLS}
do
if safe_to_destroy_pool $pool ;
then
destroy_pool $pool
fi
done
ALL_POOLS=$(get_all_pools)
done
zfs mount -a
else
typeset fs=""
for fs in $(zfs list -H -o name \
| grep "^$ZONE_POOL/$ZONE_CTR[01234]/"); do
destroy_dataset "$fs" "-Rf"
done
# Need cleanup here to avoid garbage dir left.
for fs in $(zfs list -H -o name); do
[[ $fs == /$ZONE_POOL ]] && continue
[[ -d $fs ]] && log_must rm -rf $fs/*
done
#
# Reset the $ZONE_POOL/$ZONE_CTR[01234] file systems property to
# the default value
#
for fs in $(zfs list -H -o name); do
if [[ $fs == $ZONE_POOL/$ZONE_CTR[01234] ]]; then
log_must zfs set reservation=none $fs
log_must zfs set recordsize=128K $fs
log_must zfs set mountpoint=/$fs $fs
typeset enc=""
enc=$(get_prop encryption $fs)
if [[ $? -ne 0 ]] || [[ -z "$enc" ]] || \
[[ "$enc" == "off" ]]; then
log_must zfs set checksum=on $fs
fi
log_must zfs set compression=off $fs
log_must zfs set atime=on $fs
log_must zfs set devices=off $fs
log_must zfs set exec=on $fs
log_must zfs set setuid=on $fs
log_must zfs set readonly=off $fs
log_must zfs set snapdir=hidden $fs
log_must zfs set aclmode=groupmask $fs
log_must zfs set aclinherit=secure $fs
fi
done
fi
[[ -d $TESTDIR ]] && \
log_must rm -rf $TESTDIR
disk1=${DISKS%% *}
if is_mpath_device $disk1; then
delete_partitions
fi
rm -f $TEST_BASE_DIR/{err,out}
}
#
# Common function used to cleanup storage pools, file systems
# and containers.
#
function default_container_cleanup
{
if ! is_global_zone; then
reexport_pool
fi
ismounted $TESTPOOL/$TESTCTR/$TESTFS1
[[ $? -eq 0 ]] && \
log_must zfs unmount $TESTPOOL/$TESTCTR/$TESTFS1
destroy_dataset "$TESTPOOL/$TESTCTR/$TESTFS1" "-R"
destroy_dataset "$TESTPOOL/$TESTCTR" "-Rf"
[[ -e $TESTDIR1 ]] && \
log_must rm -rf $TESTDIR1 > /dev/null 2>&1
default_cleanup
}
#
# Common function used to cleanup snapshot of file system or volume. Default to
# delete the file system's snapshot
#
# $1 snapshot name
#
function destroy_snapshot
{
typeset snap=${1:-$TESTPOOL/$TESTFS@$TESTSNAP}
if ! snapexists $snap; then
log_fail "'$snap' does not exist."
fi
#
# For the sake of the value which come from 'get_prop' is not equal
# to the really mountpoint when the snapshot is unmounted. So, firstly
# check and make sure this snapshot's been mounted in current system.
#
typeset mtpt=""
if ismounted $snap; then
mtpt=$(get_prop mountpoint $snap)
(($? != 0)) && \
log_fail "get_prop mountpoint $snap failed."
fi
destroy_dataset "$snap"
[[ $mtpt != "" && -d $mtpt ]] && \
log_must rm -rf $mtpt
}
#
# Common function used to cleanup clone.
#
# $1 clone name
#
function destroy_clone
{
typeset clone=${1:-$TESTPOOL/$TESTCLONE}
if ! datasetexists $clone; then
log_fail "'$clone' does not existed."
fi
# With the same reason in destroy_snapshot
typeset mtpt=""
if ismounted $clone; then
mtpt=$(get_prop mountpoint $clone)
(($? != 0)) && \
log_fail "get_prop mountpoint $clone failed."
fi
destroy_dataset "$clone"
[[ $mtpt != "" && -d $mtpt ]] && \
log_must rm -rf $mtpt
}
#
# Common function used to cleanup bookmark of file system or volume. Default
# to delete the file system's bookmark.
#
# $1 bookmark name
#
function destroy_bookmark
{
typeset bkmark=${1:-$TESTPOOL/$TESTFS#$TESTBKMARK}
if ! bkmarkexists $bkmark; then
log_fail "'$bkmarkp' does not existed."
fi
destroy_dataset "$bkmark"
}
# Return 0 if a snapshot exists; $? otherwise
#
# $1 - snapshot name
function snapexists
{
zfs list -H -t snapshot "$1" > /dev/null 2>&1
return $?
}
#
# Return 0 if a bookmark exists; $? otherwise
#
# $1 - bookmark name
#
function bkmarkexists
{
zfs list -H -t bookmark "$1" > /dev/null 2>&1
return $?
}
#
# Return 0 if a hold exists; $? otherwise
#
# $1 - hold tag
# $2 - snapshot name
#
function holdexists
{
zfs holds "$2" | awk '{ print $2 }' | grep "$1" > /dev/null 2>&1
return $?
}
#
# Set a property to a certain value on a dataset.
# Sets a property of the dataset to the value as passed in.
# @param:
# $1 dataset who's property is being set
# $2 property to set
# $3 value to set property to
# @return:
# 0 if the property could be set.
# non-zero otherwise.
# @use: ZFS
#
function dataset_setprop
{
typeset fn=dataset_setprop
if (($# < 3)); then
log_note "$fn: Insufficient parameters (need 3, had $#)"
return 1
fi
typeset output=
output=$(zfs set $2=$3 $1 2>&1)
typeset rv=$?
if ((rv != 0)); then
log_note "Setting property on $1 failed."
log_note "property $2=$3"
log_note "Return Code: $rv"
log_note "Output: $output"
return $rv
fi
return 0
}
#
# Assign suite defined dataset properties.
# This function is used to apply the suite's defined default set of
# properties to a dataset.
# @parameters: $1 dataset to use
# @uses: ZFS COMPRESSION_PROP CHECKSUM_PROP
# @returns:
# 0 if the dataset has been altered.
# 1 if no pool name was passed in.
# 2 if the dataset could not be found.
# 3 if the dataset could not have it's properties set.
#
function dataset_set_defaultproperties
{
typeset dataset="$1"
[[ -z $dataset ]] && return 1
typeset confset=
typeset -i found=0
for confset in $(zfs list); do
if [[ $dataset = $confset ]]; then
found=1
break
fi
done
[[ $found -eq 0 ]] && return 2
if [[ -n $COMPRESSION_PROP ]]; then
dataset_setprop $dataset compression $COMPRESSION_PROP || \
return 3
log_note "Compression set to '$COMPRESSION_PROP' on $dataset"
fi
if [[ -n $CHECKSUM_PROP ]]; then
dataset_setprop $dataset checksum $CHECKSUM_PROP || \
return 3
log_note "Checksum set to '$CHECKSUM_PROP' on $dataset"
fi
return 0
}
#
# Check a numeric assertion
# @parameter: $@ the assertion to check
# @output: big loud notice if assertion failed
# @use: log_fail
#
function assert
{
(($@)) || log_fail "$@"
}
#
# Function to format partition size of a disk
# Given a disk cxtxdx reduces all partitions
# to 0 size
#
function zero_partitions #<whole_disk_name>
{
typeset diskname=$1
typeset i
if is_freebsd; then
gpart destroy -F $diskname
elif is_linux; then
DSK=$DEV_DSKDIR/$diskname
DSK=$(echo $DSK | sed -e "s|//|/|g")
log_must parted $DSK -s -- mklabel gpt
blockdev --rereadpt $DSK 2>/dev/null
block_device_wait
else
for i in 0 1 3 4 5 6 7
do
log_must set_partition $i "" 0mb $diskname
done
fi
return 0
}
#
# Given a slice, size and disk, this function
# formats the slice to the specified size.
# Size should be specified with units as per
# the `format` command requirements eg. 100mb 3gb
#
# NOTE: This entire interface is problematic for the Linux parted utility
# which requires the end of the partition to be specified. It would be
# best to retire this interface and replace it with something more flexible.
# At the moment a best effort is made.
#
# arguments: <slice_num> <slice_start> <size_plus_units> <whole_disk_name>
function set_partition
{
typeset -i slicenum=$1
typeset start=$2
typeset size=$3
typeset disk=${4#$DEV_DSKDIR/}
disk=${disk#$DEV_RDSKDIR/}
case "$(uname)" in
Linux)
if [[ -z $size || -z $disk ]]; then
log_fail "The size or disk name is unspecified."
fi
disk=$DEV_DSKDIR/$disk
typeset size_mb=${size%%[mMgG]}
size_mb=${size_mb%%[mMgG][bB]}
if [[ ${size:1:1} == 'g' ]]; then
((size_mb = size_mb * 1024))
fi
# Create GPT partition table when setting slice 0 or
# when the device doesn't already contain a GPT label.
parted $disk -s -- print 1 >/dev/null
typeset ret_val=$?
if [[ $slicenum -eq 0 || $ret_val -ne 0 ]]; then
parted $disk -s -- mklabel gpt
if [[ $? -ne 0 ]]; then
log_note "Failed to create GPT partition table on $disk"
return 1
fi
fi
# When no start is given align on the first cylinder.
if [[ -z "$start" ]]; then
start=1
fi
# Determine the cylinder size for the device and using
# that calculate the end offset in cylinders.
typeset -i cly_size_kb=0
cly_size_kb=$(parted -m $disk -s -- \
unit cyl print | head -3 | tail -1 | \
awk -F '[:k.]' '{print $4}')
((end = (size_mb * 1024 / cly_size_kb) + start))
parted $disk -s -- \
mkpart part$slicenum ${start}cyl ${end}cyl
typeset ret_val=$?
if [[ $ret_val -ne 0 ]]; then
log_note "Failed to create partition $slicenum on $disk"
return 1
fi
blockdev --rereadpt $disk 2>/dev/null
block_device_wait $disk
;;
FreeBSD)
if [[ -z $size || -z $disk ]]; then
log_fail "The size or disk name is unspecified."
fi
disk=$DEV_DSKDIR/$disk
if [[ $slicenum -eq 0 ]] || ! gpart show $disk >/dev/null 2>&1; then
gpart destroy -F $disk >/dev/null 2>&1
gpart create -s GPT $disk
if [[ $? -ne 0 ]]; then
log_note "Failed to create GPT partition table on $disk"
return 1
fi
fi
typeset index=$((slicenum + 1))
if [[ -n $start ]]; then
start="-b $start"
fi
gpart add -t freebsd-zfs $start -s $size -i $index $disk
if [[ $ret_val -ne 0 ]]; then
log_note "Failed to create partition $slicenum on $disk"
return 1
fi
block_device_wait $disk
;;
*)
if [[ -z $slicenum || -z $size || -z $disk ]]; then
log_fail "The slice, size or disk name is unspecified."
fi
typeset format_file=/var/tmp/format_in.$$
echo "partition" >$format_file
echo "$slicenum" >> $format_file
echo "" >> $format_file
echo "" >> $format_file
echo "$start" >> $format_file
echo "$size" >> $format_file
echo "label" >> $format_file
echo "" >> $format_file
echo "q" >> $format_file
echo "q" >> $format_file
format -e -s -d $disk -f $format_file
typeset ret_val=$?
rm -f $format_file
;;
esac
if [[ $ret_val -ne 0 ]]; then
log_note "Unable to format $disk slice $slicenum to $size"
return 1
fi
return 0
}
#
# Delete all partitions on all disks - this is specifically for the use of multipath
# devices which currently can only be used in the test suite as raw/un-partitioned
# devices (ie a zpool cannot be created on a whole mpath device that has partitions)
#
function delete_partitions
{
typeset disk
if [[ -z $DISKSARRAY ]]; then
DISKSARRAY=$DISKS
fi
if is_linux; then
typeset -i part
for disk in $DISKSARRAY; do
for (( part = 1; part < MAX_PARTITIONS; part++ )); do
typeset partition=${disk}${SLICE_PREFIX}${part}
parted $DEV_DSKDIR/$disk -s rm $part > /dev/null 2>&1
if lsblk | grep -qF ${partition}; then
log_fail "Partition ${partition} not deleted"
else
log_note "Partition ${partition} deleted"
fi
done
done
elif is_freebsd; then
for disk in $DISKSARRAY; do
if gpart destroy -F $disk; then
log_note "Partitions for ${disk} deleted"
else
log_fail "Partitions for ${disk} not deleted"
fi
done
fi
}
#
# Get the end cyl of the given slice
#
function get_endslice #<disk> <slice>
{
typeset disk=$1
typeset slice=$2
if [[ -z $disk || -z $slice ]] ; then
log_fail "The disk name or slice number is unspecified."
fi
case "$(uname)" in
Linux)
endcyl=$(parted -s $DEV_DSKDIR/$disk -- unit cyl print | \
grep "part${slice}" | \
awk '{print $3}' | \
sed 's,cyl,,')
((endcyl = (endcyl + 1)))
;;
FreeBSD)
disk=${disk#/dev/zvol/}
disk=${disk%p*}
slice=$((slice + 1))
endcyl=$(gpart show $disk | \
awk -v slice=$slice '$3 == slice { print $1 + $2 }')
;;
*)
disk=${disk#/dev/dsk/}
disk=${disk#/dev/rdsk/}
disk=${disk%s*}
typeset -i ratio=0
ratio=$(prtvtoc /dev/rdsk/${disk}s2 | \
grep "sectors\/cylinder" | \
awk '{print $2}')
if ((ratio == 0)); then
return
fi
typeset -i endcyl=$(prtvtoc -h /dev/rdsk/${disk}s2 |
nawk -v token="$slice" '{if ($1==token) print $6}')
((endcyl = (endcyl + 1) / ratio))
;;
esac
echo $endcyl
}
#
# Given a size,disk and total slice number, this function formats the
# disk slices from 0 to the total slice number with the same specified
# size.
#
function partition_disk #<slice_size> <whole_disk_name> <total_slices>
{
typeset -i i=0
typeset slice_size=$1
typeset disk_name=$2
typeset total_slices=$3
typeset cyl
zero_partitions $disk_name
while ((i < $total_slices)); do
if ! is_linux; then
if ((i == 2)); then
((i = i + 1))
continue
fi
fi
log_must set_partition $i "$cyl" $slice_size $disk_name
cyl=$(get_endslice $disk_name $i)
((i = i+1))
done
}
#
# This function continues to write to a filenum number of files into dirnum
# number of directories until either file_write returns an error or the
# maximum number of files per directory have been written.
#
# Usage:
# fill_fs [destdir] [dirnum] [filenum] [bytes] [num_writes] [data]
#
# Return value: 0 on success
# non 0 on error
#
# Where :
# destdir: is the directory where everything is to be created under
# dirnum: the maximum number of subdirectories to use, -1 no limit
# filenum: the maximum number of files per subdirectory
# bytes: number of bytes to write
# num_writes: number of types to write out bytes
# data: the data that will be written
#
# E.g.
# fill_fs /testdir 20 25 1024 256 0
#
# Note: bytes * num_writes equals the size of the testfile
#
function fill_fs # destdir dirnum filenum bytes num_writes data
{
typeset destdir=${1:-$TESTDIR}
typeset -i dirnum=${2:-50}
typeset -i filenum=${3:-50}
typeset -i bytes=${4:-8192}
typeset -i num_writes=${5:-10240}
typeset data=${6:-0}
mkdir -p $destdir/{1..$dirnum}
for f in $destdir/{1..$dirnum}/$TESTFILE{1..$filenum}; do
file_write -o create -f $f -b $bytes -c $num_writes -d $data \
|| return $?
done
return 0
}
#
# Simple function to get the specified property. If unable to
# get the property then exits.
#
# Note property is in 'parsable' format (-p)
#
function get_prop # property dataset
{
typeset prop_val
typeset prop=$1
typeset dataset=$2
prop_val=$(zfs get -pH -o value $prop $dataset 2>/dev/null)
if [[ $? -ne 0 ]]; then
log_note "Unable to get $prop property for dataset " \
"$dataset"
return 1
fi
echo "$prop_val"
return 0
}
#
# Simple function to get the specified property of pool. If unable to
# get the property then exits.
#
# Note property is in 'parsable' format (-p)
#
function get_pool_prop # property pool
{
typeset prop_val
typeset prop=$1
typeset pool=$2
if poolexists $pool ; then
prop_val=$(zpool get -pH $prop $pool 2>/dev/null | tail -1 | \
awk '{print $3}')
if [[ $? -ne 0 ]]; then
log_note "Unable to get $prop property for pool " \
"$pool"
return 1
fi
else
log_note "Pool $pool not exists."
return 1
fi
echo "$prop_val"
return 0
}
# Return 0 if a pool exists; $? otherwise
#
# $1 - pool name
function poolexists
{
typeset pool=$1
if [[ -z $pool ]]; then
log_note "No pool name given."
return 1
fi
zpool get name "$pool" > /dev/null 2>&1
return $?
}
# Return 0 if all the specified datasets exist; $? otherwise
#
# $1-n dataset name
function datasetexists
{
if (($# == 0)); then
log_note "No dataset name given."
return 1
fi
while (($# > 0)); do
zfs get name $1 > /dev/null 2>&1 || \
return $?
shift
done
return 0
}
# return 0 if none of the specified datasets exists, otherwise return 1.
#
# $1-n dataset name
function datasetnonexists
{
if (($# == 0)); then
log_note "No dataset name given."
return 1
fi
while (($# > 0)); do
zfs list -H -t filesystem,snapshot,volume $1 > /dev/null 2>&1 \
&& return 1
shift
done
return 0
}
function is_shared_freebsd
{
typeset fs=$1
pgrep -q mountd && showmount -E | grep -qx $fs
}
function is_shared_illumos
{
typeset fs=$1
typeset mtpt
for mtpt in `share | awk '{print $2}'` ; do
if [[ $mtpt == $fs ]] ; then
return 0
fi
done
typeset stat=$(svcs -H -o STA nfs/server:default)
if [[ $stat != "ON" ]]; then
log_note "Current nfs/server status: $stat"
fi
return 1
}
function is_shared_linux
{
typeset fs=$1
typeset mtpt
for mtpt in `share | awk '{print $1}'` ; do
if [[ $mtpt == $fs ]] ; then
return 0
fi
done
return 1
}
#
# Given a mountpoint, or a dataset name, determine if it is shared via NFS.
#
# Returns 0 if shared, 1 otherwise.
#
function is_shared
{
typeset fs=$1
typeset mtpt
if [[ $fs != "/"* ]] ; then
if datasetnonexists "$fs" ; then
return 1
else
mtpt=$(get_prop mountpoint "$fs")
case $mtpt in
none|legacy|-) return 1
;;
*) fs=$mtpt
;;
esac
fi
fi
case $(uname) in
FreeBSD) is_shared_freebsd "$fs" ;;
Linux) is_shared_linux "$fs" ;;
*) is_shared_illumos "$fs" ;;
esac
}
function is_exported_illumos
{
typeset fs=$1
typeset mtpt
for mtpt in `awk '{print $1}' /etc/dfs/sharetab` ; do
if [[ $mtpt == $fs ]] ; then
return 0
fi
done
return 1
}
function is_exported_freebsd
{
typeset fs=$1
typeset mtpt
for mtpt in `awk '{print $1}' /etc/zfs/exports` ; do
if [[ $mtpt == $fs ]] ; then
return 0
fi
done
return 1
}
function is_exported_linux
{
typeset fs=$1
typeset mtpt
for mtpt in `awk '{print $1}' /etc/exports.d/zfs.exports` ; do
if [[ $mtpt == $fs ]] ; then
return 0
fi
done
return 1
}
#
# Given a mountpoint, or a dataset name, determine if it is exported via
# the os-specific NFS exports file.
#
# Returns 0 if exported, 1 otherwise.
#
function is_exported
{
typeset fs=$1
typeset mtpt
if [[ $fs != "/"* ]] ; then
if datasetnonexists "$fs" ; then
return 1
else
mtpt=$(get_prop mountpoint "$fs")
case $mtpt in
none|legacy|-) return 1
;;
*) fs=$mtpt
;;
esac
fi
fi
case $(uname) in
FreeBSD) is_exported_freebsd "$fs" ;;
Linux) is_exported_linux "$fs" ;;
*) is_exported_illumos "$fs" ;;
esac
}
#
# Given a dataset name determine if it is shared via SMB.
#
# Returns 0 if shared, 1 otherwise.
#
function is_shared_smb
{
typeset fs=$1
typeset mtpt
if datasetnonexists "$fs" ; then
return 1
else
fs=$(echo $fs | sed 's@/@_@g')
fi
if is_linux; then
for mtpt in `net usershare list | awk '{print $1}'` ; do
if [[ $mtpt == $fs ]] ; then
return 0
fi
done
return 1
else
log_note "Currently unsupported by the test framework"
return 1
fi
}
#
# Given a mountpoint, determine if it is not shared via NFS.
#
# Returns 0 if not shared, 1 otherwise.
#
function not_shared
{
typeset fs=$1
is_shared $fs
if (($? == 0)); then
return 1
fi
return 0
}
#
# Given a dataset determine if it is not shared via SMB.
#
# Returns 0 if not shared, 1 otherwise.
#
function not_shared_smb
{
typeset fs=$1
is_shared_smb $fs
if (($? == 0)); then
return 1
fi
return 0
}
#
# Helper function to unshare a mountpoint.
#
function unshare_fs #fs
{
typeset fs=$1
is_shared $fs || is_shared_smb $fs
if (($? == 0)); then
zfs unshare $fs || log_fail "zfs unshare $fs failed"
fi
return 0
}
#
# Helper function to share a NFS mountpoint.
#
function share_nfs #fs
{
typeset fs=$1
if is_linux; then
is_shared $fs
if (($? != 0)); then
log_must share "*:$fs"
fi
else
is_shared $fs
if (($? != 0)); then
log_must share -F nfs $fs
fi
fi
return 0
}
#
# Helper function to unshare a NFS mountpoint.
#
function unshare_nfs #fs
{
typeset fs=$1
if is_linux; then
is_shared $fs
if (($? == 0)); then
log_must unshare -u "*:$fs"
fi
else
is_shared $fs
if (($? == 0)); then
log_must unshare -F nfs $fs
fi
fi
return 0
}
#
# Helper function to show NFS shares.
#
function showshares_nfs
{
if is_linux; then
share -v
else
share -F nfs
fi
return 0
}
#
# Helper function to show SMB shares.
#
function showshares_smb
{
if is_linux; then
net usershare list
else
share -F smb
fi
return 0
}
function check_nfs
{
if is_linux; then
share -s
elif is_freebsd; then
showmount -e
else
log_unsupported "Unknown platform"
fi
if [[ $? -ne 0 ]]; then
log_unsupported "The NFS utilities are not installed"
fi
}
#
# Check NFS server status and trigger it online.
#
function setup_nfs_server
{
# Cannot share directory in non-global zone.
#
if ! is_global_zone; then
log_note "Cannot trigger NFS server by sharing in LZ."
return
fi
if is_linux; then
#
# Re-synchronize /var/lib/nfs/etab with /etc/exports and
# /etc/exports.d./* to provide a clean test environment.
#
log_must share -r
log_note "NFS server must be started prior to running ZTS."
return
elif is_freebsd; then
kill -s HUP $(cat /var/run/mountd.pid)
log_note "NFS server must be started prior to running ZTS."
return
fi
typeset nfs_fmri="svc:/network/nfs/server:default"
if [[ $(svcs -Ho STA $nfs_fmri) != "ON" ]]; then
#
# Only really sharing operation can enable NFS server
# to online permanently.
#
typeset dummy=/tmp/dummy
if [[ -d $dummy ]]; then
log_must rm -rf $dummy
fi
log_must mkdir $dummy
log_must share $dummy
#
# Waiting for fmri's status to be the final status.
# Otherwise, in transition, an asterisk (*) is appended for
# instances, unshare will reverse status to 'DIS' again.
#
# Waiting for 1's at least.
#
log_must sleep 1
timeout=10
while [[ timeout -ne 0 && $(svcs -Ho STA $nfs_fmri) == *'*' ]]
do
log_must sleep 1
((timeout -= 1))
done
log_must unshare $dummy
log_must rm -rf $dummy
fi
log_note "Current NFS status: '$(svcs -Ho STA,FMRI $nfs_fmri)'"
}
#
# To verify whether calling process is in global zone
#
# Return 0 if in global zone, 1 in non-global zone
#
function is_global_zone
{
if is_linux || is_freebsd; then
return 0
else
typeset cur_zone=$(zonename 2>/dev/null)
if [[ $cur_zone != "global" ]]; then
return 1
fi
return 0
fi
}
#
# Verify whether test is permitted to run from
# global zone, local zone, or both
#
# $1 zone limit, could be "global", "local", or "both"(no limit)
#
# Return 0 if permitted, otherwise exit with log_unsupported
#
function verify_runnable # zone limit
{
typeset limit=$1
[[ -z $limit ]] && return 0
if is_global_zone ; then
case $limit in
global|both)
;;
local) log_unsupported "Test is unable to run from "\
"global zone."
;;
*) log_note "Warning: unknown limit $limit - " \
"use both."
;;
esac
else
case $limit in
local|both)
;;
global) log_unsupported "Test is unable to run from "\
"local zone."
;;
*) log_note "Warning: unknown limit $limit - " \
"use both."
;;
esac
reexport_pool
fi
return 0
}
# Return 0 if create successfully or the pool exists; $? otherwise
# Note: In local zones, this function should return 0 silently.
#
# $1 - pool name
# $2-n - [keyword] devs_list
function create_pool #pool devs_list
{
typeset pool=${1%%/*}
shift
if [[ -z $pool ]]; then
log_note "Missing pool name."
return 1
fi
if poolexists $pool ; then
destroy_pool $pool
fi
if is_global_zone ; then
[[ -d /$pool ]] && rm -rf /$pool
log_must zpool create -f $pool $@
fi
return 0
}
# Return 0 if destroy successfully or the pool exists; $? otherwise
# Note: In local zones, this function should return 0 silently.
#
# $1 - pool name
# Destroy pool with the given parameters.
function destroy_pool #pool
{
typeset pool=${1%%/*}
typeset mtpt
if [[ -z $pool ]]; then
log_note "No pool name given."
return 1
fi
if is_global_zone ; then
if poolexists "$pool" ; then
mtpt=$(get_prop mountpoint "$pool")
# At times, syseventd/udev activity can cause attempts
# to destroy a pool to fail with EBUSY. We retry a few
# times allowing failures before requiring the destroy
# to succeed.
log_must_busy zpool destroy -f $pool
[[ -d $mtpt ]] && \
log_must rm -rf $mtpt
else
log_note "Pool does not exist. ($pool)"
return 1
fi
fi
return 0
}
# Return 0 if created successfully; $? otherwise
#
# $1 - dataset name
# $2-n - dataset options
function create_dataset #dataset dataset_options
{
typeset dataset=$1
shift
if [[ -z $dataset ]]; then
log_note "Missing dataset name."
return 1
fi
if datasetexists $dataset ; then
destroy_dataset $dataset
fi
log_must zfs create $@ $dataset
return 0
}
# Return 0 if destroy successfully or the dataset exists; $? otherwise
# Note: In local zones, this function should return 0 silently.
#
# $1 - dataset name
# $2 - custom arguments for zfs destroy
# Destroy dataset with the given parameters.
function destroy_dataset #dataset #args
{
typeset dataset=$1
typeset mtpt
typeset args=${2:-""}
if [[ -z $dataset ]]; then
log_note "No dataset name given."
return 1
fi
if is_global_zone ; then
if datasetexists "$dataset" ; then
mtpt=$(get_prop mountpoint "$dataset")
log_must_busy zfs destroy $args $dataset
[[ -d $mtpt ]] && \
log_must rm -rf $mtpt
else
log_note "Dataset does not exist. ($dataset)"
return 1
fi
fi
return 0
}
#
# Firstly, create a pool with 5 datasets. Then, create a single zone and
# export the 5 datasets to it. In addition, we also add a ZFS filesystem
# and a zvol device to the zone.
#
# $1 zone name
# $2 zone root directory prefix
# $3 zone ip
#
function zfs_zones_setup #zone_name zone_root zone_ip
{
typeset zone_name=${1:-$(hostname)-z}
typeset zone_root=${2:-"/zone_root"}
typeset zone_ip=${3:-"10.1.1.10"}
typeset prefix_ctr=$ZONE_CTR
typeset pool_name=$ZONE_POOL
typeset -i cntctr=5
typeset -i i=0
# Create pool and 5 container within it
#
[[ -d /$pool_name ]] && rm -rf /$pool_name
log_must zpool create -f $pool_name $DISKS
while ((i < cntctr)); do
log_must zfs create $pool_name/$prefix_ctr$i
((i += 1))
done
# create a zvol
log_must zfs create -V 1g $pool_name/zone_zvol
block_device_wait
#
# If current system support slog, add slog device for pool
#
if verify_slog_support ; then
typeset sdevs="$TEST_BASE_DIR/sdev1 $TEST_BASE_DIR/sdev2"
log_must mkfile $MINVDEVSIZE $sdevs
log_must zpool add $pool_name log mirror $sdevs
fi
# this isn't supported just yet.
# Create a filesystem. In order to add this to
# the zone, it must have it's mountpoint set to 'legacy'
# log_must zfs create $pool_name/zfs_filesystem
# log_must zfs set mountpoint=legacy $pool_name/zfs_filesystem
[[ -d $zone_root ]] && \
log_must rm -rf $zone_root/$zone_name
[[ ! -d $zone_root ]] && \
log_must mkdir -p -m 0700 $zone_root/$zone_name
# Create zone configure file and configure the zone
#
typeset zone_conf=/tmp/zone_conf.$$
echo "create" > $zone_conf
echo "set zonepath=$zone_root/$zone_name" >> $zone_conf
echo "set autoboot=true" >> $zone_conf
i=0
while ((i < cntctr)); do
echo "add dataset" >> $zone_conf
echo "set name=$pool_name/$prefix_ctr$i" >> \
$zone_conf
echo "end" >> $zone_conf
((i += 1))
done
# add our zvol to the zone
echo "add device" >> $zone_conf
echo "set match=/dev/zvol/dsk/$pool_name/zone_zvol" >> $zone_conf
echo "end" >> $zone_conf
# add a corresponding zvol rdsk to the zone
echo "add device" >> $zone_conf
echo "set match=$ZVOL_RDEVDIR/$pool_name/zone_zvol" >> $zone_conf
echo "end" >> $zone_conf
# once it's supported, we'll add our filesystem to the zone
# echo "add fs" >> $zone_conf
# echo "set type=zfs" >> $zone_conf
# echo "set special=$pool_name/zfs_filesystem" >> $zone_conf
# echo "set dir=/export/zfs_filesystem" >> $zone_conf
# echo "end" >> $zone_conf
echo "verify" >> $zone_conf
echo "commit" >> $zone_conf
log_must zonecfg -z $zone_name -f $zone_conf
log_must rm -f $zone_conf
# Install the zone
zoneadm -z $zone_name install
if (($? == 0)); then
log_note "SUCCESS: zoneadm -z $zone_name install"
else
log_fail "FAIL: zoneadm -z $zone_name install"
fi
# Install sysidcfg file
#
typeset sysidcfg=$zone_root/$zone_name/root/etc/sysidcfg
echo "system_locale=C" > $sysidcfg
echo "terminal=dtterm" >> $sysidcfg
echo "network_interface=primary {" >> $sysidcfg
echo "hostname=$zone_name" >> $sysidcfg
echo "}" >> $sysidcfg
echo "name_service=NONE" >> $sysidcfg
echo "root_password=mo791xfZ/SFiw" >> $sysidcfg
echo "security_policy=NONE" >> $sysidcfg
echo "timezone=US/Eastern" >> $sysidcfg
# Boot this zone
log_must zoneadm -z $zone_name boot
}
#
# Reexport TESTPOOL & TESTPOOL(1-4)
#
function reexport_pool
{
typeset -i cntctr=5
typeset -i i=0
while ((i < cntctr)); do
if ((i == 0)); then
TESTPOOL=$ZONE_POOL/$ZONE_CTR$i
if ! ismounted $TESTPOOL; then
log_must zfs mount $TESTPOOL
fi
else
eval TESTPOOL$i=$ZONE_POOL/$ZONE_CTR$i
if eval ! ismounted \$TESTPOOL$i; then
log_must eval zfs mount \$TESTPOOL$i
fi
fi
((i += 1))
done
}
#
# Verify a given disk or pool state
#
# Return 0 is pool/disk matches expected state, 1 otherwise
#
function check_state # pool disk state{online,offline,degraded}
{
typeset pool=$1
typeset disk=${2#$DEV_DSKDIR/}
typeset state=$3
[[ -z $pool ]] || [[ -z $state ]] \
&& log_fail "Arguments invalid or missing"
if [[ -z $disk ]]; then
#check pool state only
zpool get -H -o value health $pool \
| grep -i "$state" > /dev/null 2>&1
else
zpool status -v $pool | grep "$disk" \
| grep -i "$state" > /dev/null 2>&1
fi
return $?
}
#
# Get the mountpoint of snapshot
# For the snapshot use <mp_filesystem>/.zfs/snapshot/<snap>
# as its mountpoint
#
function snapshot_mountpoint
{
typeset dataset=${1:-$TESTPOOL/$TESTFS@$TESTSNAP}
if [[ $dataset != *@* ]]; then
log_fail "Error name of snapshot '$dataset'."
fi
typeset fs=${dataset%@*}
typeset snap=${dataset#*@}
if [[ -z $fs || -z $snap ]]; then
log_fail "Error name of snapshot '$dataset'."
fi
echo $(get_prop mountpoint $fs)/.zfs/snapshot/$snap
}
#
# Given a device and 'ashift' value verify it's correctly set on every label
#
function verify_ashift # device ashift
{
typeset device="$1"
typeset ashift="$2"
zdb -e -lll $device | awk -v ashift=$ashift '/ashift: / {
if (ashift != $2)
exit 1;
else
count++;
} END {
if (count != 4)
exit 1;
else
exit 0;
}'
return $?
}
#
# Given a pool and file system, this function will verify the file system
# using the zdb internal tool. Note that the pool is exported and imported
# to ensure it has consistent state.
#
function verify_filesys # pool filesystem dir
{
typeset pool="$1"
typeset filesys="$2"
typeset zdbout="/tmp/zdbout.$$"
shift
shift
typeset dirs=$@
typeset search_path=""
log_note "Calling zdb to verify filesystem '$filesys'"
zfs unmount -a > /dev/null 2>&1
log_must zpool export $pool
if [[ -n $dirs ]] ; then
for dir in $dirs ; do
search_path="$search_path -d $dir"
done
fi
log_must zpool import $search_path $pool
zdb -cudi $filesys > $zdbout 2>&1
if [[ $? != 0 ]]; then
log_note "Output: zdb -cudi $filesys"
cat $zdbout
log_fail "zdb detected errors with: '$filesys'"
fi
log_must zfs mount -a
log_must rm -rf $zdbout
}
#
# Given a pool issue a scrub and verify that no checksum errors are reported.
#
function verify_pool
{
typeset pool=${1:-$TESTPOOL}
log_must zpool scrub $pool
log_must wait_scrubbed $pool
typeset -i cksum=$(zpool status $pool | awk '
!NF { isvdev = 0 }
isvdev { errors += $NF }
/CKSUM$/ { isvdev = 1 }
END { print errors }
')
if [[ $cksum != 0 ]]; then
log_must zpool status -v
log_fail "Unexpected CKSUM errors found on $pool ($cksum)"
fi
}
#
# Given a pool, and this function list all disks in the pool
#
function get_disklist # pool
{
typeset disklist=""
disklist=$(zpool iostat -v $1 | nawk '(NR >4) {print $1}' | \
grep -v "\-\-\-\-\-" | \
egrep -v -e "^(mirror|raidz[1-3]|spare|log|cache|special|dedup)$")
echo $disklist
}
#
# Given a pool, and this function list all disks in the pool with their full
# path (like "/dev/sda" instead of "sda").
#
function get_disklist_fullpath # pool
{
args="-P $1"
get_disklist $args
}
# /**
# This function kills a given list of processes after a time period. We use
# this in the stress tests instead of STF_TIMEOUT so that we can have processes
# run for a fixed amount of time, yet still pass. Tests that hit STF_TIMEOUT
# would be listed as FAIL, which we don't want : we're happy with stress tests
# running for a certain amount of time, then finishing.
#
# @param $1 the time in seconds after which we should terminate these processes
# @param $2..$n the processes we wish to terminate.
# */
function stress_timeout
{
typeset -i TIMEOUT=$1
shift
typeset cpids="$@"
log_note "Waiting for child processes($cpids). " \
"It could last dozens of minutes, please be patient ..."
log_must sleep $TIMEOUT
log_note "Killing child processes after ${TIMEOUT} stress timeout."
typeset pid
for pid in $cpids; do
ps -p $pid > /dev/null 2>&1
if (($? == 0)); then
log_must kill -USR1 $pid
fi
done
}
#
# Verify a given hotspare disk is inuse or avail
#
# Return 0 is pool/disk matches expected state, 1 otherwise
#
function check_hotspare_state # pool disk state{inuse,avail}
{
typeset pool=$1
typeset disk=${2#$DEV_DSKDIR/}
typeset state=$3
cur_state=$(get_device_state $pool $disk "spares")
if [[ $state != ${cur_state} ]]; then
return 1
fi
return 0
}
#
# Wait until a hotspare transitions to a given state or times out.
#
# Return 0 when pool/disk matches expected state, 1 on timeout.
#
function wait_hotspare_state # pool disk state timeout
{
typeset pool=$1
typeset disk=${2#*$DEV_DSKDIR/}
typeset state=$3
typeset timeout=${4:-60}
typeset -i i=0
while [[ $i -lt $timeout ]]; do
if check_hotspare_state $pool $disk $state; then
return 0
fi
i=$((i+1))
sleep 1
done
return 1
}
#
# Verify a given slog disk is inuse or avail
#
# Return 0 is pool/disk matches expected state, 1 otherwise
#
function check_slog_state # pool disk state{online,offline,unavail}
{
typeset pool=$1
typeset disk=${2#$DEV_DSKDIR/}
typeset state=$3
cur_state=$(get_device_state $pool $disk "logs")
if [[ $state != ${cur_state} ]]; then
return 1
fi
return 0
}
#
# Verify a given vdev disk is inuse or avail
#
# Return 0 is pool/disk matches expected state, 1 otherwise
#
function check_vdev_state # pool disk state{online,offline,unavail}
{
typeset pool=$1
typeset disk=${2#*$DEV_DSKDIR/}
typeset state=$3
cur_state=$(get_device_state $pool $disk)
if [[ $state != ${cur_state} ]]; then
return 1
fi
return 0
}
#
# Wait until a vdev transitions to a given state or times out.
#
# Return 0 when pool/disk matches expected state, 1 on timeout.
#
function wait_vdev_state # pool disk state timeout
{
typeset pool=$1
typeset disk=${2#*$DEV_DSKDIR/}
typeset state=$3
typeset timeout=${4:-60}
typeset -i i=0
while [[ $i -lt $timeout ]]; do
if check_vdev_state $pool $disk $state; then
return 0
fi
i=$((i+1))
sleep 1
done
return 1
}
#
# Check the output of 'zpool status -v <pool>',
# and to see if the content of <token> contain the <keyword> specified.
#
# Return 0 is contain, 1 otherwise
#
function check_pool_status # pool token keyword <verbose>
{
typeset pool=$1
typeset token=$2
typeset keyword=$3
typeset verbose=${4:-false}
scan=$(zpool status -v "$pool" 2>/dev/null | nawk -v token="$token:" '
($1==token) {print $0}')
if [[ $verbose == true ]]; then
log_note $scan
fi
echo $scan | egrep -i "$keyword" > /dev/null 2>&1
return $?
}
#
# The following functions are instance of check_pool_status()
# is_pool_resilvering - to check if the pool resilver is in progress
# is_pool_resilvered - to check if the pool resilver is completed
# is_pool_scrubbing - to check if the pool scrub is in progress
# is_pool_scrubbed - to check if the pool scrub is completed
# is_pool_scrub_stopped - to check if the pool scrub is stopped
# is_pool_scrub_paused - to check if the pool scrub has paused
# is_pool_removing - to check if the pool removing is a vdev
# is_pool_removed - to check if the pool remove is completed
# is_pool_discarding - to check if the pool checkpoint is being discarded
#
function is_pool_resilvering #pool <verbose>
{
check_pool_status "$1" "scan" \
"resilver[ ()0-9A-Za-z_-]* in progress since" $2
return $?
}
function is_pool_resilvered #pool <verbose>
{
check_pool_status "$1" "scan" "resilvered " $2
return $?
}
function is_pool_scrubbing #pool <verbose>
{
check_pool_status "$1" "scan" "scrub in progress since " $2
return $?
}
function is_pool_scrubbed #pool <verbose>
{
check_pool_status "$1" "scan" "scrub repaired" $2
return $?
}
function is_pool_scrub_stopped #pool <verbose>
{
check_pool_status "$1" "scan" "scrub canceled" $2
return $?
}
function is_pool_scrub_paused #pool <verbose>
{
check_pool_status "$1" "scan" "scrub paused since " $2
return $?
}
function is_pool_removing #pool
{
check_pool_status "$1" "remove" "in progress since "
return $?
}
function is_pool_removed #pool
{
check_pool_status "$1" "remove" "completed on"
return $?
}
function is_pool_discarding #pool
{
check_pool_status "$1" "checkpoint" "discarding"
return $?
}
function wait_for_degraded
{
typeset pool=$1
typeset timeout=${2:-30}
typeset t0=$SECONDS
while :; do
[[ $(get_pool_prop health $pool) == "DEGRADED" ]] && break
log_note "$pool is not yet degraded."
sleep 1
if ((SECONDS - t0 > $timeout)); then
log_note "$pool not degraded after $timeout seconds."
return 1
fi
done
return 0
}
#
# Use create_pool()/destroy_pool() to clean up the information in
# in the given disk to avoid slice overlapping.
#
function cleanup_devices #vdevs
{
typeset pool="foopool$$"
for vdev in $@; do
zero_partitions $vdev
done
poolexists $pool && destroy_pool $pool
create_pool $pool $@
destroy_pool $pool
return 0
}
#/**
# A function to find and locate free disks on a system or from given
# disks as the parameter. It works by locating disks that are in use
# as swap devices and dump devices, and also disks listed in /etc/vfstab
#
# $@ given disks to find which are free, default is all disks in
# the test system
#
# @return a string containing the list of available disks
#*/
function find_disks
{
# Trust provided list, no attempt is made to locate unused devices.
if is_linux || is_freebsd; then
echo "$@"
return
fi
sfi=/tmp/swaplist.$$
dmpi=/tmp/dumpdev.$$
max_finddisksnum=${MAX_FINDDISKSNUM:-6}
swap -l > $sfi
dumpadm > $dmpi 2>/dev/null
# write an awk script that can process the output of format
# to produce a list of disks we know about. Note that we have
# to escape "$2" so that the shell doesn't interpret it while
# we're creating the awk script.
# -------------------
cat > /tmp/find_disks.awk <<EOF
#!/bin/nawk -f
BEGIN { FS="."; }
/^Specify disk/{
searchdisks=0;
}
{
if (searchdisks && \$2 !~ "^$"){
split(\$2,arr," ");
print arr[1];
}
}
/^AVAILABLE DISK SELECTIONS:/{
searchdisks=1;
}
EOF
#---------------------
chmod 755 /tmp/find_disks.awk
disks=${@:-$(echo "" | format -e 2>/dev/null | /tmp/find_disks.awk)}
rm /tmp/find_disks.awk
unused=""
for disk in $disks; do
# Check for mounted
grep "${disk}[sp]" /etc/mnttab >/dev/null
(($? == 0)) && continue
# Check for swap
grep "${disk}[sp]" $sfi >/dev/null
(($? == 0)) && continue
# check for dump device
grep "${disk}[sp]" $dmpi >/dev/null
(($? == 0)) && continue
# check to see if this disk hasn't been explicitly excluded
# by a user-set environment variable
echo "${ZFS_HOST_DEVICES_IGNORE}" | grep "${disk}" > /dev/null
(($? == 0)) && continue
unused_candidates="$unused_candidates $disk"
done
rm $sfi
rm $dmpi
# now just check to see if those disks do actually exist
# by looking for a device pointing to the first slice in
# each case. limit the number to max_finddisksnum
count=0
for disk in $unused_candidates; do
if is_disk_device $DEV_DSKDIR/${disk}s0 && \
[ $count -lt $max_finddisksnum ]; then
unused="$unused $disk"
# do not impose limit if $@ is provided
[[ -z $@ ]] && ((count = count + 1))
fi
done
# finally, return our disk list
echo $unused
}
function add_user_freebsd #<group_name> <user_name> <basedir>
{
typeset group=$1
typeset user=$2
typeset basedir=$3
# Check to see if the user exists.
if id $user > /dev/null 2>&1; then
return 0
fi
# Assign 1000 as the base uid
typeset -i uid=1000
while true; do
typeset -i ret
pw useradd -u $uid -g $group -d $basedir/$user -m -n $user
ret=$?
case $ret in
0) break ;;
# The uid is not unique
65) ((uid += 1)) ;;
*) return 1 ;;
esac
if [[ $uid == 65000 ]]; then
log_fail "No user id available under 65000 for $user"
fi
done
# Silence MOTD
touch $basedir/$user/.hushlogin
return 0
}
#
# Delete the specified user.
#
# $1 login name
#
function del_user_freebsd #<logname>
{
typeset user=$1
if id $user > /dev/null 2>&1; then
log_must pw userdel $user
fi
return 0
}
#
# Select valid gid and create specified group.
#
# $1 group name
#
function add_group_freebsd #<group_name>
{
typeset group=$1
# See if the group already exists.
if pw groupshow $group >/dev/null 2>&1; then
return 0
fi
# Assign 1000 as the base gid
typeset -i gid=1000
while true; do
pw groupadd -g $gid -n $group > /dev/null 2>&1
typeset -i ret=$?
case $ret in
0) return 0 ;;
# The gid is not unique
65) ((gid += 1)) ;;
*) return 1 ;;
esac
if [[ $gid == 65000 ]]; then
log_fail "No user id available under 65000 for $group"
fi
done
}
#
# Delete the specified group.
#
# $1 group name
#
function del_group_freebsd #<group_name>
{
typeset group=$1
pw groupdel -n $group > /dev/null 2>&1
typeset -i ret=$?
case $ret in
# Group does not exist, or was deleted successfully.
0|6|65) return 0 ;;
# Name already exists as a group name
9) log_must pw groupdel $group ;;
*) return 1 ;;
esac
return 0
}
function add_user_illumos #<group_name> <user_name> <basedir>
{
typeset group=$1
typeset user=$2
typeset basedir=$3
log_must useradd -g $group -d $basedir/$user -m $user
return 0
}
function del_user_illumos #<user_name>
{
typeset user=$1
if id $user > /dev/null 2>&1; then
log_must_retry "currently used" 6 userdel $user
fi
return 0
}
function add_group_illumos #<group_name>
{
typeset group=$1
typeset -i gid=100
while true; do
groupadd -g $gid $group > /dev/null 2>&1
typeset -i ret=$?
case $ret in
0) return 0 ;;
# The gid is not unique
4) ((gid += 1)) ;;
*) return 1 ;;
esac
done
}
function del_group_illumos #<group_name>
{
typeset group=$1
groupmod -n $grp $grp > /dev/null 2>&1
typeset -i ret=$?
case $ret in
# Group does not exist.
6) return 0 ;;
# Name already exists as a group name
9) log_must groupdel $grp ;;
*) return 1 ;;
esac
}
function add_user_linux #<group_name> <user_name> <basedir>
{
typeset group=$1
typeset user=$2
typeset basedir=$3
log_must useradd -g $group -d $basedir/$user -m $user
# Add new users to the same group and the command line utils.
# This allows them to be run out of the original users home
# directory as long as it permissioned to be group readable.
cmd_group=$(stat --format="%G" $(which zfs))
log_must usermod -a -G $cmd_group $user
return 0
}
function del_user_linux #<user_name>
{
typeset user=$1
if id $user > /dev/null 2>&1; then
log_must_retry "currently used" 6 userdel $user
fi
return 0
}
function add_group_linux #<group_name>
{
typeset group=$1
# Assign 100 as the base gid, a larger value is selected for
# Linux because for many distributions 1000 and under are reserved.
while true; do
groupadd $group > /dev/null 2>&1
typeset -i ret=$?
case $ret in
0) return 0 ;;
*) return 1 ;;
esac
done
}
function del_group_linux #<group_name>
{
typeset group=$1
getent group $group > /dev/null 2>&1
typeset -i ret=$?
case $ret in
# Group does not exist.
2) return 0 ;;
# Name already exists as a group name
0) log_must groupdel $group ;;
*) return 1 ;;
esac
return 0
}
#
# Add specified user to specified group
#
# $1 group name
# $2 user name
# $3 base of the homedir (optional)
#
function add_user #<group_name> <user_name> <basedir>
{
typeset group=$1
typeset user=$2
typeset basedir=${3:-"/var/tmp"}
if ((${#group} == 0 || ${#user} == 0)); then
log_fail "group name or user name are not defined."
fi
case $(uname) in
FreeBSD)
add_user_freebsd "$group" "$user" "$basedir"
;;
Linux)
add_user_linux "$group" "$user" "$basedir"
;;
*)
add_user_illumos "$group" "$user" "$basedir"
;;
esac
echo "export PATH=\"$STF_PATH\"" >>$basedir/$user/.profile
echo "export PATH=\"$STF_PATH\"" >>$basedir/$user/.bash_profile
echo "export PATH=\"$STF_PATH\"" >>$basedir/$user/.login
return 0
}
#
# Delete the specified user.
#
# $1 login name
# $2 base of the homedir (optional)
#
function del_user #<logname> <basedir>
{
typeset user=$1
typeset basedir=${2:-"/var/tmp"}
if ((${#user} == 0)); then
log_fail "login name is necessary."
fi
case $(uname) in
FreeBSD)
del_user_freebsd "$user"
;;
Linux)
del_user_linux "$user"
;;
*)
del_user_illumos "$user"
;;
esac
[[ -d $basedir/$user ]] && rm -fr $basedir/$user
return 0
}
#
# Select valid gid and create specified group.
#
# $1 group name
#
function add_group #<group_name>
{
typeset group=$1
if ((${#group} == 0)); then
log_fail "group name is necessary."
fi
case $(uname) in
FreeBSD)
add_group_freebsd "$group"
;;
Linux)
add_group_linux "$group"
;;
*)
add_group_illumos "$group"
;;
esac
return 0
}
#
# Delete the specified group.
#
# $1 group name
#
function del_group #<group_name>
{
typeset group=$1
if ((${#group} == 0)); then
log_fail "group name is necessary."
fi
case $(uname) in
FreeBSD)
del_group_freebsd "$group"
;;
Linux)
del_group_linux "$group"
;;
*)
del_group_illumos "$group"
;;
esac
return 0
}
#
# This function will return true if it's safe to destroy the pool passed
# as argument 1. It checks for pools based on zvols and files, and also
# files contained in a pool that may have a different mountpoint.
#
function safe_to_destroy_pool { # $1 the pool name
typeset pool=""
typeset DONT_DESTROY=""
# We check that by deleting the $1 pool, we're not
# going to pull the rug out from other pools. Do this
# by looking at all other pools, ensuring that they
# aren't built from files or zvols contained in this pool.
for pool in $(zpool list -H -o name)
do
ALTMOUNTPOOL=""
# this is a list of the top-level directories in each of the
# files that make up the path to the files the pool is based on
FILEPOOL=$(zpool status -v $pool | grep /$1/ | \
awk '{print $1}')
# this is a list of the zvols that make up the pool
ZVOLPOOL=$(zpool status -v $pool | grep "$ZVOL_DEVDIR/$1$" \
| awk '{print $1}')
# also want to determine if it's a file-based pool using an
# alternate mountpoint...
POOL_FILE_DIRS=$(zpool status -v $pool | \
grep / | awk '{print $1}' | \
awk -F/ '{print $2}' | grep -v "dev")
for pooldir in $POOL_FILE_DIRS
do
OUTPUT=$(zfs list -H -r -o mountpoint $1 | \
grep "${pooldir}$" | awk '{print $1}')
ALTMOUNTPOOL="${ALTMOUNTPOOL}${OUTPUT}"
done
if [ ! -z "$ZVOLPOOL" ]
then
DONT_DESTROY="true"
log_note "Pool $pool is built from $ZVOLPOOL on $1"
fi
if [ ! -z "$FILEPOOL" ]
then
DONT_DESTROY="true"
log_note "Pool $pool is built from $FILEPOOL on $1"
fi
if [ ! -z "$ALTMOUNTPOOL" ]
then
DONT_DESTROY="true"
log_note "Pool $pool is built from $ALTMOUNTPOOL on $1"
fi
done
if [ -z "${DONT_DESTROY}" ]
then
return 0
else
log_note "Warning: it is not safe to destroy $1!"
return 1
fi
}
#
# Verify zfs operation with -p option work as expected
# $1 operation, value could be create, clone or rename
# $2 dataset type, value could be fs or vol
# $3 dataset name
# $4 new dataset name
#
function verify_opt_p_ops
{
typeset ops=$1
typeset datatype=$2
typeset dataset=$3
typeset newdataset=$4
if [[ $datatype != "fs" && $datatype != "vol" ]]; then
log_fail "$datatype is not supported."
fi
# check parameters accordingly
case $ops in
create)
newdataset=$dataset
dataset=""
if [[ $datatype == "vol" ]]; then
ops="create -V $VOLSIZE"
fi
;;
clone)
if [[ -z $newdataset ]]; then
log_fail "newdataset should not be empty" \
"when ops is $ops."
fi
log_must datasetexists $dataset
log_must snapexists $dataset
;;
rename)
if [[ -z $newdataset ]]; then
log_fail "newdataset should not be empty" \
"when ops is $ops."
fi
log_must datasetexists $dataset
;;
*)
log_fail "$ops is not supported."
;;
esac
# make sure the upper level filesystem does not exist
destroy_dataset "${newdataset%/*}" "-rRf"
# without -p option, operation will fail
log_mustnot zfs $ops $dataset $newdataset
log_mustnot datasetexists $newdataset ${newdataset%/*}
# with -p option, operation should succeed
log_must zfs $ops -p $dataset $newdataset
block_device_wait
if ! datasetexists $newdataset ; then
log_fail "-p option does not work for $ops"
fi
# when $ops is create or clone, redo the operation still return zero
if [[ $ops != "rename" ]]; then
log_must zfs $ops -p $dataset $newdataset
fi
return 0
}
#
# Get configuration of pool
# $1 pool name
# $2 config name
#
function get_config
{
typeset pool=$1
typeset config=$2
typeset alt_root
if ! poolexists "$pool" ; then
return 1
fi
alt_root=$(zpool list -H $pool | awk '{print $NF}')
if [[ $alt_root == "-" ]]; then
value=$(zdb -C $pool | grep "$config:" | awk -F: \
'{print $2}')
else
value=$(zdb -e $pool | grep "$config:" | awk -F: \
'{print $2}')
fi
if [[ -n $value ]] ; then
value=${value#'}
value=${value%'}
fi
echo $value
return 0
}
#
# Privated function. Random select one of items from arguments.
#
# $1 count
# $2-n string
#
function _random_get
{
typeset cnt=$1
shift
typeset str="$@"
typeset -i ind
((ind = RANDOM % cnt + 1))
typeset ret=$(echo "$str" | cut -f $ind -d ' ')
echo $ret
}
#
# Random select one of item from arguments which include NONE string
#
function random_get_with_non
{
typeset -i cnt=$#
((cnt =+ 1))
_random_get "$cnt" "$@"
}
#
# Random select one of item from arguments which doesn't include NONE string
#
function random_get
{
_random_get "$#" "$@"
}
#
# Detect if the current system support slog
#
function verify_slog_support
{
typeset dir=$TEST_BASE_DIR/disk.$$
typeset pool=foo.$$
typeset vdev=$dir/a
typeset sdev=$dir/b
mkdir -p $dir
mkfile $MINVDEVSIZE $vdev $sdev
typeset -i ret=0
if ! zpool create -n $pool $vdev log $sdev > /dev/null 2>&1; then
ret=1
fi
rm -r $dir
return $ret
}
#
# The function will generate a dataset name with specific length
# $1, the length of the name
# $2, the base string to construct the name
#
function gen_dataset_name
{
typeset -i len=$1
typeset basestr="$2"
typeset -i baselen=${#basestr}
typeset -i iter=0
typeset l_name=""
if ((len % baselen == 0)); then
((iter = len / baselen))
else
((iter = len / baselen + 1))
fi
while ((iter > 0)); do
l_name="${l_name}$basestr"
((iter -= 1))
done
echo $l_name
}
#
# Get cksum tuple of dataset
# $1 dataset name
#
# sample zdb output:
# Dataset data/test [ZPL], ID 355, cr_txg 2413856, 31.0K, 7 objects, rootbp
# DVA[0]=<0:803046400:200> DVA[1]=<0:81199000:200> [L0 DMU objset] fletcher4
# lzjb LE contiguous unique double size=800L/200P birth=2413856L/2413856P
# fill=7 cksum=11ce125712:643a9c18ee2:125e25238fca0:254a3f74b59744
function datasetcksum
{
typeset cksum
sync
cksum=$(zdb -vvv $1 | grep "^Dataset $1 \[" | grep "cksum" \
| awk -F= '{print $7}')
echo $cksum
}
#
# Get cksum of file
# #1 file path
#
function checksum
{
typeset cksum
cksum=$(cksum $1 | awk '{print $1}')
echo $cksum
}
#
# Get the given disk/slice state from the specific field of the pool
#
function get_device_state #pool disk field("", "spares","logs")
{
typeset pool=$1
typeset disk=${2#$DEV_DSKDIR/}
typeset field=${3:-$pool}
state=$(zpool status -v "$pool" 2>/dev/null | \
nawk -v device=$disk -v pool=$pool -v field=$field \
'BEGIN {startconfig=0; startfield=0; }
/config:/ {startconfig=1}
(startconfig==1) && ($1==field) {startfield=1; next;}
(startfield==1) && ($1==device) {print $2; exit;}
(startfield==1) &&
($1==field || $1 ~ "^spares$" || $1 ~ "^logs$") {startfield=0}')
echo $state
}
#
# print the given directory filesystem type
#
# $1 directory name
#
function get_fstype
{
typeset dir=$1
if [[ -z $dir ]]; then
log_fail "Usage: get_fstype <directory>"
fi
#
# $ df -n /
# / : ufs
#
df -n $dir | awk '{print $3}'
}
#
# Given a disk, label it to VTOC regardless what label was on the disk
# $1 disk
#
function labelvtoc
{
typeset disk=$1
if [[ -z $disk ]]; then
log_fail "The disk name is unspecified."
fi
typeset label_file=/var/tmp/labelvtoc.$$
typeset arch=$(uname -p)
if is_linux || is_freebsd; then
log_note "Currently unsupported by the test framework"
return 1
fi
if [[ $arch == "i386" ]]; then
echo "label" > $label_file
echo "0" >> $label_file
echo "" >> $label_file
echo "q" >> $label_file
echo "q" >> $label_file
fdisk -B $disk >/dev/null 2>&1
# wait a while for fdisk finishes
sleep 60
elif [[ $arch == "sparc" ]]; then
echo "label" > $label_file
echo "0" >> $label_file
echo "" >> $label_file
echo "" >> $label_file
echo "" >> $label_file
echo "q" >> $label_file
else
log_fail "unknown arch type"
fi
format -e -s -d $disk -f $label_file
typeset -i ret_val=$?
rm -f $label_file
#
# wait the format to finish
#
sleep 60
if ((ret_val != 0)); then
log_fail "unable to label $disk as VTOC."
fi
return 0
}
#
# check if the system was installed as zfsroot or not
# return: 0 if zfsroot, non-zero if not
#
function is_zfsroot
{
df -n / | grep zfs > /dev/null 2>&1
return $?
}
#
# get the root filesystem name if it's zfsroot system.
#
# return: root filesystem name
function get_rootfs
{
typeset rootfs=""
if is_freebsd; then
rootfs=$(mount -p | awk '$2 == "/" && $3 == "zfs" {print $1}')
elif ! is_linux; then
rootfs=$(awk '{if ($2 == "/" && $3 == "zfs") print $1}' \
/etc/mnttab)
fi
if [[ -z "$rootfs" ]]; then
log_fail "Can not get rootfs"
fi
zfs list $rootfs > /dev/null 2>&1
if (($? == 0)); then
echo $rootfs
else
log_fail "This is not a zfsroot system."
fi
}
#
# get the rootfs's pool name
# return:
# rootpool name
#
function get_rootpool
{
typeset rootfs=""
typeset rootpool=""
if is_freebsd; then
rootfs=$(mount -p | awk '$2 == "/" && $3 == "zfs" {print $1}')
elif ! is_linux; then
rootfs=$(awk '{if ($2 == "/" && $3 =="zfs") print $1}' \
/etc/mnttab)
fi
if [[ -z "$rootfs" ]]; then
log_fail "Can not get rootpool"
fi
zfs list $rootfs > /dev/null 2>&1
if (($? == 0)); then
echo ${rootfs%%/*}
else
log_fail "This is not a zfsroot system."
fi
}
#
# Get the word numbers from a string separated by white space
#
function get_word_count
{
echo $1 | wc -w
}
#
# To verify if the require numbers of disks is given
#
function verify_disk_count
{
typeset -i min=${2:-1}
typeset -i count=$(get_word_count "$1")
if ((count < min)); then
log_untested "A minimum of $min disks is required to run." \
" You specified $count disk(s)"
fi
}
function ds_is_volume
{
typeset type=$(get_prop type $1)
[[ $type = "volume" ]] && return 0
return 1
}
function ds_is_filesystem
{
typeset type=$(get_prop type $1)
[[ $type = "filesystem" ]] && return 0
return 1
}
function ds_is_snapshot
{
typeset type=$(get_prop type $1)
[[ $type = "snapshot" ]] && return 0
return 1
}
#
# Check if Trusted Extensions are installed and enabled
#
function is_te_enabled
{
svcs -H -o state labeld 2>/dev/null | grep "enabled"
if (($? != 0)); then
return 1
else
return 0
fi
}
# Utility function to determine if a system has multiple cpus.
function is_mp
{
if is_linux; then
(($(nproc) > 1))
elif is_freebsd; then
sysctl -n kern.smp.cpus
else
(($(psrinfo | wc -l) > 1))
fi
return $?
}
function get_cpu_freq
{
if is_linux; then
lscpu | awk '/CPU MHz/ { print $3 }'
elif is_freebsd; then
sysctl -n hw.clockrate
else
psrinfo -v 0 | awk '/processor operates at/ {print $6}'
fi
}
# Run the given command as the user provided.
function user_run
{
typeset user=$1
shift
log_note "user:$user $@"
eval su - \$user -c \"$@\" > $TEST_BASE_DIR/out 2>$TEST_BASE_DIR/err
}
#
# Check if the pool contains the specified vdevs
#
# $1 pool
# $2..n <vdev> ...
#
# Return 0 if the vdevs are contained in the pool, 1 if any of the specified
# vdevs is not in the pool, and 2 if pool name is missing.
#
function vdevs_in_pool
{
typeset pool=$1
typeset vdev
if [[ -z $pool ]]; then
log_note "Missing pool name."
return 2
fi
shift
# We could use 'zpool list' to only get the vdevs of the pool but we
# can't reference a mirror/raidz vdev using its ID (i.e mirror-0),
# therefore we use the 'zpool status' output.
typeset tmpfile=$(mktemp)
zpool status -v "$pool" | grep -A 1000 "config:" >$tmpfile
for vdev in $@; do
grep -w ${vdev##*/} $tmpfile >/dev/null 2>&1
[[ $? -ne 0 ]] && return 1
done
rm -f $tmpfile
return 0;
}
function get_max
{
typeset -l i max=$1
shift
for i in "$@"; do
max=$((max > i ? max : i))
done
echo $max
}
function get_min
{
typeset -l i min=$1
shift
for i in "$@"; do
min=$((min < i ? min : i))
done
echo $min
}
# Write data that can be compressed into a directory
function write_compressible
{
typeset dir=$1
typeset megs=$2
typeset nfiles=${3:-1}
typeset bs=${4:-1024k}
typeset fname=${5:-file}
[[ -d $dir ]] || log_fail "No directory: $dir"
# Under Linux fio is not currently used since its behavior can
# differ significantly across versions. This includes missing
# command line options and cases where the --buffer_compress_*
# options fail to behave as expected.
if is_linux; then
typeset file_bytes=$(to_bytes $megs)
typeset bs_bytes=4096
typeset blocks=$(($file_bytes / $bs_bytes))
for (( i = 0; i < $nfiles; i++ )); do
truncate -s $file_bytes $dir/$fname.$i
# Write every third block to get 66% compression.
for (( j = 0; j < $blocks; j += 3 )); do
dd if=/dev/urandom of=$dir/$fname.$i \
seek=$j bs=$bs_bytes count=1 \
conv=notrunc >/dev/null 2>&1
done
done
else
log_must eval "fio \
--name=job \
--fallocate=0 \
--minimal \
--randrepeat=0 \
--buffer_compress_percentage=66 \
--buffer_compress_chunk=4096 \
--directory=$dir \
--numjobs=$nfiles \
--nrfiles=$nfiles \
--rw=write \
--bs=$bs \
--filesize=$megs \
--filename_format='$fname.\$jobnum' >/dev/null"
fi
}
function get_objnum
{
typeset pathname=$1
typeset objnum
[[ -e $pathname ]] || log_fail "No such file or directory: $pathname"
if is_freebsd; then
objnum=$(stat -f "%i" $pathname)
else
objnum=$(stat -c %i $pathname)
fi
echo $objnum
}
#
# Sync data to the pool
#
# $1 pool name
# $2 boolean to force uberblock (and config including zpool cache file) update
#
function sync_pool #pool <force>
{
typeset pool=${1:-$TESTPOOL}
typeset force=${2:-false}
if [[ $force == true ]]; then
log_must zpool sync -f $pool
else
log_must zpool sync $pool
fi
return 0
}
#
# Wait for zpool 'freeing' property drops to zero.
#
# $1 pool name
#
function wait_freeing #pool
{
typeset pool=${1:-$TESTPOOL}
while true; do
[[ "0" == "$(zpool list -Ho freeing $pool)" ]] && break
log_must sleep 1
done
}
#
# Wait for every device replace operation to complete
#
# $1 pool name
#
function wait_replacing #pool
{
typeset pool=${1:-$TESTPOOL}
while true; do
[[ "" == "$(zpool status $pool |
awk '/replacing-[0-9]+/ {print $1}')" ]] && break
log_must sleep 1
done
}
#
# Wait for a pool to be scrubbed
#
# $1 pool name
# $2 number of seconds to wait (optional)
#
# Returns true when pool has been scrubbed, or false if there's a timeout or if
# no scrub was done.
#
function wait_scrubbed
{
typeset pool=${1:-$TESTPOOL}
while true ; do
is_pool_scrubbed $pool && break
sleep 1
done
}
# Backup the zed.rc in our test directory so that we can edit it for our test.
#
# Returns: Backup file name. You will need to pass this to zed_rc_restore().
function zed_rc_backup
{
zedrc_backup="$(mktemp)"
cp $ZEDLET_DIR/zed.rc $zedrc_backup
echo $zedrc_backup
}
function zed_rc_restore
{
mv $1 $ZEDLET_DIR/zed.rc
}
#
# Setup custom environment for the ZED.
#
# $@ Optional list of zedlets to run under zed.
function zed_setup
{
if ! is_linux; then
log_unsupported "No zed on $(uname)"
fi
if [[ ! -d $ZEDLET_DIR ]]; then
log_must mkdir $ZEDLET_DIR
fi
if [[ ! -e $VDEVID_CONF ]]; then
log_must touch $VDEVID_CONF
fi
if [[ -e $VDEVID_CONF_ETC ]]; then
log_fail "Must not have $VDEVID_CONF_ETC file present on system"
fi
EXTRA_ZEDLETS=$@
# Create a symlink for /etc/zfs/vdev_id.conf file.
log_must ln -s $VDEVID_CONF $VDEVID_CONF_ETC
# Setup minimal ZED configuration. Individual test cases should
# add additional ZEDLETs as needed for their specific test.
log_must cp ${ZEDLET_ETC_DIR}/zed.rc $ZEDLET_DIR
log_must cp ${ZEDLET_ETC_DIR}/zed-functions.sh $ZEDLET_DIR
# Scripts must only be user writable.
if [[ -n "$EXTRA_ZEDLETS" ]] ; then
saved_umask=$(umask)
log_must umask 0022
for i in $EXTRA_ZEDLETS ; do
log_must cp ${ZEDLET_LIBEXEC_DIR}/$i $ZEDLET_DIR
done
log_must umask $saved_umask
fi
# Customize the zed.rc file to enable the full debug log.
log_must sed -i '/\#ZED_DEBUG_LOG=.*/d' $ZEDLET_DIR/zed.rc
echo "ZED_DEBUG_LOG=$ZED_DEBUG_LOG" >>$ZEDLET_DIR/zed.rc
}
#
# Cleanup custom ZED environment.
#
# $@ Optional list of zedlets to remove from our test zed.d directory.
function zed_cleanup
{
if ! is_linux; then
return
fi
EXTRA_ZEDLETS=$@
log_must rm -f ${ZEDLET_DIR}/zed.rc
log_must rm -f ${ZEDLET_DIR}/zed-functions.sh
log_must rm -f ${ZEDLET_DIR}/all-syslog.sh
log_must rm -f ${ZEDLET_DIR}/all-debug.sh
log_must rm -f ${ZEDLET_DIR}/state
if [[ -n "$EXTRA_ZEDLETS" ]] ; then
for i in $EXTRA_ZEDLETS ; do
log_must rm -f ${ZEDLET_DIR}/$i
done
fi
log_must rm -f $ZED_LOG
log_must rm -f $ZED_DEBUG_LOG
log_must rm -f $VDEVID_CONF_ETC
log_must rm -f $VDEVID_CONF
rmdir $ZEDLET_DIR
}
#
# Check if ZED is currently running, if not start ZED.
#
function zed_start
{
if ! is_linux; then
return
fi
# ZEDLET_DIR=/var/tmp/zed
if [[ ! -d $ZEDLET_DIR ]]; then
log_must mkdir $ZEDLET_DIR
fi
# Verify the ZED is not already running.
pgrep -x zed > /dev/null
if (($? == 0)); then
log_note "ZED already running"
else
log_note "Starting ZED"
# run ZED in the background and redirect foreground logging
# output to $ZED_LOG.
log_must truncate -s 0 $ZED_DEBUG_LOG
log_must eval "zed -vF -d $ZEDLET_DIR -p $ZEDLET_DIR/zed.pid -P $PATH" \
"-s $ZEDLET_DIR/state 2>$ZED_LOG &"
fi
return 0
}
#
# Kill ZED process
#
function zed_stop
{
if ! is_linux; then
return
fi
log_note "Stopping ZED"
if [[ -f ${ZEDLET_DIR}/zed.pid ]]; then
zedpid=$(<${ZEDLET_DIR}/zed.pid)
kill $zedpid
while ps -p $zedpid > /dev/null; do
sleep 1
done
rm -f ${ZEDLET_DIR}/zed.pid
fi
return 0
}
#
# Drain all zevents
#
function zed_events_drain
{
while [ $(zpool events -H | wc -l) -ne 0 ]; do
sleep 1
zpool events -c >/dev/null
done
}
# Set a variable in zed.rc to something, un-commenting it in the process.
#
# $1 variable
# $2 value
function zed_rc_set
{
var="$1"
val="$2"
# Remove the line
cmd="'/$var/d'"
eval sed -i $cmd $ZEDLET_DIR/zed.rc
# Add it at the end
echo "$var=$val" >> $ZEDLET_DIR/zed.rc
}
#
# Check is provided device is being active used as a swap device.
#
function is_swap_inuse
{
typeset device=$1
if [[ -z $device ]] ; then
log_note "No device specified."
return 1
fi
if is_linux; then
swapon -s | grep -w $(readlink -f $device) > /dev/null 2>&1
elif is_freebsd; then
swapctl -l | grep -w $device
else
swap -l | grep -w $device > /dev/null 2>&1
fi
return $?
}
#
# Setup a swap device using the provided device.
#
function swap_setup
{
typeset swapdev=$1
if is_linux; then
log_must eval "mkswap $swapdev > /dev/null 2>&1"
log_must swapon $swapdev
elif is_freebsd; then
log_must swapctl -a $swapdev
else
log_must swap -a $swapdev
fi
return 0
}
#
# Cleanup a swap device on the provided device.
#
function swap_cleanup
{
typeset swapdev=$1
if is_swap_inuse $swapdev; then
if is_linux; then
log_must swapoff $swapdev
elif is_freebsd; then
log_must swapoff $swapdev
else
log_must swap -d $swapdev
fi
fi
return 0
}
#
# Set a global system tunable (64-bit value)
#
# $1 tunable name (use a NAME defined in tunables.cfg)
# $2 tunable values
#
function set_tunable64
{
set_tunable_impl "$1" "$2" Z
}
#
# Set a global system tunable (32-bit value)
#
# $1 tunable name (use a NAME defined in tunables.cfg)
# $2 tunable values
#
function set_tunable32
{
set_tunable_impl "$1" "$2" W
}
function set_tunable_impl
{
typeset name="$1"
typeset value="$2"
typeset mdb_cmd="$3"
typeset module="${4:-zfs}"
eval "typeset tunable=\$$name"
case "$tunable" in
UNSUPPORTED)
log_unsupported "Tunable '$name' is unsupported on $(uname)"
;;
"")
log_fail "Tunable '$name' must be added to tunables.cfg"
;;
*)
;;
esac
[[ -z "$value" ]] && return 1
[[ -z "$mdb_cmd" ]] && return 1
case "$(uname)" in
Linux)
typeset zfs_tunables="/sys/module/$module/parameters"
[[ -w "$zfs_tunables/$tunable" ]] || return 1
cat >"$zfs_tunables/$tunable" <<<"$value"
return $?
;;
FreeBSD)
sysctl vfs.zfs.$tunable=$value
return "$?"
;;
SunOS)
[[ "$module" -eq "zfs" ]] || return 1
echo "${tunable}/${mdb_cmd}0t${value}" | mdb -kw
return $?
;;
esac
}
#
# Get a global system tunable
#
# $1 tunable name (use a NAME defined in tunables.cfg)
#
function get_tunable
{
get_tunable_impl "$1"
}
function get_tunable_impl
{
typeset name="$1"
typeset module="${2:-zfs}"
eval "typeset tunable=\$$name"
case "$tunable" in
UNSUPPORTED)
log_unsupported "Tunable '$name' is unsupported on $(uname)"
;;
"")
log_fail "Tunable '$name' must be added to tunables.cfg"
;;
*)
;;
esac
case "$(uname)" in
Linux)
typeset zfs_tunables="/sys/module/$module/parameters"
[[ -f "$zfs_tunables/$tunable" ]] || return 1
cat $zfs_tunables/$tunable
return $?
;;
FreeBSD)
sysctl -n vfs.zfs.$tunable
;;
SunOS)
[[ "$module" -eq "zfs" ]] || return 1
;;
esac
return 1
}
#
# Prints the current time in seconds since UNIX Epoch.
#
function current_epoch
{
printf '%(%s)T'
}
#
# Get decimal value of global uint32_t variable using mdb.
#
function mdb_get_uint32
{
typeset variable=$1
typeset value
value=$(mdb -k -e "$variable/X | ::eval .=U")
if [[ $? -ne 0 ]]; then
log_fail "Failed to get value of '$variable' from mdb."
return 1
fi
echo $value
return 0
}
#
# Set global uint32_t variable to a decimal value using mdb.
#
function mdb_set_uint32
{
typeset variable=$1
typeset value=$2
mdb -kw -e "$variable/W 0t$value" > /dev/null
if [[ $? -ne 0 ]]; then
echo "Failed to set '$variable' to '$value' in mdb."
return 1
fi
return 0
}
#
# Set global scalar integer variable to a hex value using mdb.
# Note: Target should have CTF data loaded.
#
function mdb_ctf_set_int
{
typeset variable=$1
typeset value=$2
mdb -kw -e "$variable/z $value" > /dev/null
if [[ $? -ne 0 ]]; then
echo "Failed to set '$variable' to '$value' in mdb."
return 1
fi
return 0
}
#
# Compute MD5 digest for given file or stdin if no file given.
# Note: file path must not contain spaces
#
function md5digest
{
typeset file=$1
case $(uname) in
FreeBSD)
md5 -q $file
;;
*)
md5sum -b $file | awk '{ print $1 }'
;;
esac
}
#
# Compute SHA256 digest for given file or stdin if no file given.
# Note: file path must not contain spaces
#
function sha256digest
{
typeset file=$1
case $(uname) in
FreeBSD)
sha256 -q $file
;;
*)
sha256sum -b $file | awk '{ print $1 }'
;;
esac
}
function new_fs #<args>
{
case $(uname) in
FreeBSD)
newfs "$@"
;;
*)
echo y | newfs -v "$@"
;;
esac
}
function stat_size #<path>
{
typeset path=$1
case $(uname) in
FreeBSD)
stat -f %z "$path"
;;
*)
stat -c %s "$path"
;;
esac
}
# Run a command as if it was being run in a TTY.
#
# Usage:
#
# faketty command
#
function faketty
{
if is_freebsd; then
script -q /dev/null env "$@"
else
script --return --quiet -c "$*" /dev/null
fi
}
#
# Produce a random permutation of the integers in a given range (inclusive).
#
function range_shuffle # begin end
{
typeset -i begin=$1
typeset -i end=$2
seq ${begin} ${end} | sort -R
}
#
# Cross-platform xattr helpers
#
function get_xattr # name path
{
typeset name=$1
typeset path=$2
case $(uname) in
FreeBSD)
getextattr -qq user "${name}" "${path}"
;;
*)
attr -qg "${name}" "${path}"
;;
esac
}
function set_xattr # name value path
{
typeset name=$1
typeset value=$2
typeset path=$3
case $(uname) in
FreeBSD)
setextattr user "${name}" "${value}" "${path}"
;;
*)
attr -qs "${name}" -V "${value}" "${path}"
;;
esac
}
function set_xattr_stdin # name value
{
typeset name=$1
typeset path=$2
case $(uname) in
FreeBSD)
setextattr -i user "${name}" "${path}"
;;
*)
attr -qs "${name}" "${path}"
;;
esac
}
function rm_xattr # name path
{
typeset name=$1
typeset path=$2
case $(uname) in
FreeBSD)
rmextattr -q user "${name}" "${path}"
;;
*)
attr -qr "${name}" "${path}"
;;
esac
}
function ls_xattr # path
{
typeset path=$1
case $(uname) in
FreeBSD)
lsextattr -qq user "${path}"
;;
*)
attr -ql "${path}"
;;
esac
}
function get_arcstat # stat
{
typeset stat=$1
case $(uname) in
FreeBSD)
sysctl -n kstat.zfs.misc.arcstats.$stat
;;
Linux)
typeset zfs_arcstats="/proc/spl/kstat/zfs/arcstats"
[[ -f "$zfs_arcstats" ]] || return 1
grep $stat $zfs_arcstats | awk '{print $3}'
;;
*)
false
;;
esac
}
#
# Given an array of pids, wait until all processes
# have completed and check their return status.
#
function wait_for_children #children
{
rv=0
children=("$@")
for child in "${children[@]}"
do
child_exit=0
wait ${child} || child_exit=$?
if [ $child_exit -ne 0 ]; then
echo "child ${child} failed with ${child_exit}"
rv=1
fi
done
return $rv
}