zfs/scripts/common.sh.in

722 lines
15 KiB
Bash

#!/bin/bash
#
# Common support functions for testing scripts. If a script-config
# files is available it will be sourced so in-tree kernel modules and
# utilities will be used. If no script-config can be found then the
# installed kernel modules and utilities will be used.
basedir="$(dirname $0)"
SCRIPT_CONFIG=zfs-script-config.sh
if [ -f "${basedir}/../${SCRIPT_CONFIG}" ]; then
. "${basedir}/../${SCRIPT_CONFIG}"
else
KERNEL_MODULES=(zlib_deflate zlib_inflate)
MODULES=(spl splat zavl znvpair zunicode zcommon zfs)
fi
PROG="<define PROG>"
CLEANUP=
VERBOSE=
VERBOSE_FLAG=
FORCE=
FORCE_FLAG=
DUMP_LOG=
ERROR=
RAID0S=()
RAID10S=()
RAIDZS=()
RAIDZ2S=()
TESTS_RUN=${TESTS_RUN:-'*'}
TESTS_SKIP=${TESTS_SKIP:-}
prefix=@prefix@
exec_prefix=@exec_prefix@
libexecdir=@libexecdir@
pkglibexecdir=${libexecdir}/@PACKAGE@
bindir=@bindir@
sbindir=@sbindir@
udevdir=@udevdir@
udevruledir=@udevruledir@
sysconfdir=@sysconfdir@
ETCDIR=${ETCDIR:-/etc}
DEVDIR=${DEVDIR:-/dev/disk/zpool}
ZPOOLDIR=${ZPOOLDIR:-${pkglibexecdir}/zpool-config}
ZPIOSDIR=${ZPIOSDIR:-${pkglibexecdir}/zpios-test}
ZPIOSPROFILEDIR=${ZPIOSPROFILEDIR:-${pkglibexecdir}/zpios-profile}
ZDB=${ZDB:-${sbindir}/zdb}
ZFS=${ZFS:-${sbindir}/zfs}
ZINJECT=${ZINJECT:-${sbindir}/zinject}
ZPOOL=${ZPOOL:-${sbindir}/zpool}
ZPOOL_ID=${ZPOOL_ID:-${bindir}/zpool_id}
ZTEST=${ZTEST:-${sbindir}/ztest}
ZPIOS=${ZPIOS:-${sbindir}/zpios}
COMMON_SH=${COMMON_SH:-${pkglibexecdir}/common.sh}
ZFS_SH=${ZFS_SH:-${pkglibexecdir}/zfs.sh}
ZPOOL_CREATE_SH=${ZPOOL_CREATE_SH:-${pkglibexecdir}/zpool-create.sh}
ZPIOS_SH=${ZPIOS_SH:-${pkglibexecdir}/zpios.sh}
ZPIOS_SURVEY_SH=${ZPIOS_SURVEY_SH:-${pkglibexecdir}/zpios-survey.sh}
LDMOD=${LDMOD:-/sbin/modprobe}
LSMOD=${LSMOD:-/sbin/lsmod}
RMMOD=${RMMOD:-/sbin/rmmod}
INFOMOD=${INFOMOD:-/sbin/modinfo}
LOSETUP=${LOSETUP:-/sbin/losetup}
MDADM=${MDADM:-/sbin/mdadm}
PARTED=${PARTED:-/sbin/parted}
BLOCKDEV=${BLOCKDEV:-/sbin/blockdev}
LSSCSI=${LSSCSI:-/usr/bin/lsscsi}
SCSIRESCAN=${SCSIRESCAN:-/usr/bin/scsi-rescan}
SYSCTL=${SYSCTL:-/sbin/sysctl}
UDEVADM=${UDEVADM:-/sbin/udevadm}
AWK=${AWK:-/usr/bin/awk}
COLOR_BLACK="\033[0;30m"
COLOR_DK_GRAY="\033[1;30m"
COLOR_BLUE="\033[0;34m"
COLOR_LT_BLUE="\033[1;34m"
COLOR_GREEN="\033[0;32m"
COLOR_LT_GREEN="\033[1;32m"
COLOR_CYAN="\033[0;36m"
COLOR_LT_CYAN="\033[1;36m"
COLOR_RED="\033[0;31m"
COLOR_LT_RED="\033[1;31m"
COLOR_PURPLE="\033[0;35m"
COLOR_LT_PURPLE="\033[1;35m"
COLOR_BROWN="\033[0;33m"
COLOR_YELLOW="\033[1;33m"
COLOR_LT_GRAY="\033[0;37m"
COLOR_WHITE="\033[1;37m"
COLOR_RESET="\033[0m"
die() {
echo -e "${PROG}: $1" >&2
exit 1
}
msg() {
if [ ${VERBOSE} ]; then
echo "$@"
fi
}
pass() {
echo -e "${COLOR_GREEN}Pass${COLOR_RESET}"
}
fail() {
echo -e "${COLOR_RED}Fail${COLOR_RESET} ($1)"
exit $1
}
skip() {
echo -e "${COLOR_BROWN}Skip${COLOR_RESET}"
}
init() {
# Disable the udev rule 90-zfs.rules to prevent the zfs module
# stack from being loaded due to the detection of a zfs device.
# This is important because the test scripts require full control
# over when and how the modules are loaded/unloaded. A trap is
# set to ensure the udev rule is correctly replaced on exit.
local RULE=${udevruledir}/90-zfs.rules
if test -e ${RULE}; then
trap "mv ${RULE}.disabled ${RULE}" INT TERM EXIT
mv ${RULE} ${RULE}.disabled
fi
}
spl_dump_log() {
${SYSCTL} -w kernel.spl.debug.dump=1 &>/dev/null
local NAME=`dmesg | tail -n 1 | cut -f5 -d' '`
${SPLBUILD}/cmd/spl ${NAME} >${NAME}.log
echo
echo "Dumped debug log: ${NAME}.log"
tail -n1 ${NAME}.log
echo
return 0
}
check_modules() {
local LOADED_MODULES=()
local MISSING_MODULES=()
for MOD in ${MODULES[*]}; do
local NAME=`basename $MOD .ko`
if ${LSMOD} | egrep -q "^${NAME}"; then
LOADED_MODULES=(${NAME} ${LOADED_MODULES[*]})
fi
if [ ${INFOMOD} ${MOD} 2>/dev/null ]; then
MISSING_MODULES=("\t${MOD}\n" ${MISSING_MODULES[*]})
fi
done
if [ ${#LOADED_MODULES[*]} -gt 0 ]; then
ERROR="Unload these modules with '${PROG} -u':\n"
ERROR="${ERROR}${LOADED_MODULES[*]}"
return 1
fi
if [ ${#MISSING_MODULES[*]} -gt 0 ]; then
ERROR="The following modules can not be found,"
ERROR="${ERROR} ensure your source trees are built:\n"
ERROR="${ERROR}${MISSING_MODULES[*]}"
return 1
fi
return 0
}
load_module() {
local NAME=`basename $1 .ko`
if [ ${VERBOSE} ]; then
echo "Loading ${NAME} ($@)"
fi
${LDMOD} $* &>/dev/null || ERROR="Failed to load $1" return 1
return 0
}
load_modules() {
mkdir -p /etc/zfs
for MOD in ${KERNEL_MODULES[*]}; do
load_module ${MOD}
done
for MOD in ${MODULES[*]}; do
local NAME=`basename ${MOD} .ko`
local VALUE=
for OPT in "$@"; do
OPT_NAME=`echo ${OPT} | cut -f1 -d'='`
if [ ${NAME} = "${OPT_NAME}" ]; then
VALUE=`echo ${OPT} | cut -f2- -d'='`
fi
done
load_module ${MOD} ${VALUE} || return 1
done
if [ ${VERBOSE} ]; then
echo "Successfully loaded ZFS module stack"
fi
return 0
}
unload_module() {
local NAME=`basename $1 .ko`
if [ ${VERBOSE} ]; then
echo "Unloading ${NAME} ($@)"
fi
${RMMOD} ${NAME} || ERROR="Failed to unload ${NAME}" return 1
return 0
}
unload_modules() {
local MODULES_REVERSE=( $(echo ${MODULES[@]} |
${AWK} '{for (i=NF;i>=1;i--) printf $i" "} END{print ""}') )
for MOD in ${MODULES_REVERSE[*]}; do
local NAME=`basename ${MOD} .ko`
local USE_COUNT=`${LSMOD} |
egrep "^${NAME} "| ${AWK} '{print $3}'`
if [ "${USE_COUNT}" = 0 ] ; then
if [ "${DUMP_LOG}" -a ${NAME} = "spl" ]; then
spl_dump_log
fi
unload_module ${MOD} || return 1
fi
done
if [ ${VERBOSE} ]; then
echo "Successfully unloaded ZFS module stack"
fi
return 0
}
#
# Check that the mdadm utilities are installed.
#
check_loop_utils() {
test -f ${LOSETUP} || die "${LOSETUP} utility must be installed"
}
#
# Find and return an unused loopback device.
#
unused_loop_device() {
for DEVICE in `ls -1 /dev/loop[0-9]* 2>/dev/null`; do
${LOSETUP} ${DEVICE} &>/dev/null
if [ $? -ne 0 ]; then
echo ${DEVICE}
return
fi
done
die "Error: Unable to find unused loopback device"
}
#
# This can be slightly dangerous because the loop devices we are
# cleaning up may not be ours. However, if the devices are currently
# in use we will not be able to remove them, and we only remove
# devices which include 'zpool' in the name. So any damage we might
# do should be limited to other zfs related testing.
#
cleanup_loop_devices() {
local TMP_FILE=`mktemp`
${LOSETUP} -a | tr -d '()' >${TMP_FILE}
${AWK} -F":" -v losetup="$LOSETUP" \
'/zpool/ { system("losetup -d "$1) }' ${TMP_FILE}
${AWK} -F" " '/zpool/ { system("rm -f "$3) }' ${TMP_FILE}
rm -f ${TMP_FILE}
}
#
# Destroy the passed loopback devices, this is used when you know
# the names of the loopback devices.
#
destroy_loop_devices() {
local LODEVICES="$1"
msg "Destroying ${LODEVICES}"
${LOSETUP} -d ${LODEVICES} || \
die "Error $? destroying ${FILE} -> ${DEVICE} loopback"
rm -f ${FILES}
return 0
}
#
# Create a device label.
#
label() {
local DEVICE=$1
local LABEL=$2
${PARTED} ${DEVICE} --script -- mklabel ${LABEL} || return 1
return 0
}
#
# Create a primary partition on a block device.
#
partition() {
local DEVICE=$1
local TYPE=$2
local START=$3
local END=$4
${PARTED} --align optimal ${DEVICE} --script -- \
mkpart ${TYPE} ${START} ${END} || return 1
udev_trigger
return 0
}
#
# Create a filesystem on the block device
#
format() {
local DEVICE=$1
local FSTYPE=$2
# Force 4K blocksize, else mkfs.ext2 tries to use 8K, which
# won't mount
/sbin/mkfs.${FSTYPE} -b 4096 -F -q ${DEVICE} || return 1
return 0
}
#
# Check that the mdadm utilities are installed.
#
check_md_utils() {
test -f ${MDADM} || die "${MDADM} utility must be installed"
test -f ${PARTED} || die "${PARTED} utility must be installed"
}
check_md_partitionable() {
local LOFILE=`mktemp -p /tmp zpool-lo.XXXXXXXX`
local LODEVICE=`unused_loop_device`
local MDDEVICE=`unused_md_device`
local RESULT=1
check_md_utils
rm -f ${LOFILE}
dd if=/dev/zero of=${LOFILE} bs=1M count=0 seek=16 \
&>/dev/null || return ${RESULT}
msg "Creating ${LODEVICE} using ${LOFILE}"
${LOSETUP} ${LODEVICE} ${LOFILE}
if [ $? -ne 0 ]; then
rm -f ${LOFILE}
return ${RESULT}
fi
msg "Creating ${MDDEVICE} using ${LODEVICE}"
${MDADM} --build ${MDDEVICE} --level=faulty \
--raid-devices=1 ${LODEVICE} &>/dev/null
if [ $? -ne 0 ]; then
destroy_loop_devices ${LODEVICE}
rm -f ${LOFILE}
return ${RESULT}
fi
wait_udev ${MDDEVICE} 30
${BLOCKDEV} --rereadpt ${MDDEVICE} 2>/dev/null
RESULT=$?
destroy_md_devices ${MDDEVICE}
destroy_loop_devices ${LODEVICE}
rm -f ${LOFILE}
return ${RESULT}
}
#
# Find and return an unused md device.
#
unused_md_device() {
for (( i=0; i<32; i++ )); do
MDDEVICE=md${i}
# Skip active devicesudo in /proc/mdstat.
grep -q "${MDDEVICE} " /proc/mdstat && continue
# Device doesn't exist, use it.
if [ ! -e $/dev/{MDDEVICE} ]; then
echo /dev/${MDDEVICE}
return
fi
# Device exists but may not be in use.
if [ -b /dev/${MDDEVICE} ]; then
${MDADM} --detail /dev/${MDDEVICE} &>/dev/null
if [ $? -eq 1 ]; then
echo /dev/${MDDEVICE}
return
fi
fi
done
die "Error: Unable to find unused md device"
}
#
# This can be slightly dangerous because it is possible the md devices
# we are cleaning up may not be ours. However, if the devices are
# currently in use we will not be able to remove them, and even if
# we remove devices which were not out we do not zero the super block
# so you should be able to reconstruct them.
#
cleanup_md_devices() {
destroy_md_devices "`ls /dev/md* 2>/dev/null | grep -v p`"
udev_trigger
}
#
# Destroy the passed md devices, this is used when you know
# the names of the md devices.
#
destroy_md_devices() {
local MDDEVICES="$1"
msg "Destroying ${MDDEVICES}"
for MDDEVICE in ${MDDEVICES}; do
${MDADM} --stop ${MDDEVICE} &>/dev/null
${MDADM} --remove ${MDDEVICE} &>/dev/null
${MDADM} --detail ${MDDEVICE} &>/dev/null
done
return 0
}
#
# Check that the scsi utilities are installed.
#
check_sd_utils() {
${INFOMOD} scsi_debug &>/dev/null || die "scsi_debug module required"
test -f ${LSSCSI} || die "${LSSCSI} utility must be installed"
}
#
# Rescan the scsi bus for scsi_debug devices. It is preferable to use the
# scsi-rescan tool if it is installed, but if it's not we can fall back to
# removing and readding the device manually. This rescan will only effect
# the first scsi_debug device if scsi-rescan is missing.
#
scsi_rescan() {
local AWK_SCRIPT="/scsi_debug/ { print \$1; exit }"
if [ -f ${SCSIRESCAN} ]; then
${SCSIRESCAN} --forcerescan --remove &>/dev/null
else
local SCSIID=`${LSSCSI} | ${AWK} "${AWK_SCRIPT}" | tr -d '[]'`
local SCSIHOST=`echo ${SCSIID} | cut -f1 -d':'`
echo 1 >"/sys/class/scsi_device/${SCSIID}/device/delete"
udev_trigger
echo "- - -" >/sys/class/scsi_host/host${SCSIHOST}/scan
udev_trigger
fi
}
#
# Trigger udev and wait for it to settle.
#
udev_trigger() {
if [ -f ${UDEVADM} ]; then
${UDEVADM} trigger --action=change --subsystem-match=block
${UDEVADM} settle
else
/sbin/udevtrigger
/sbin/udevsettle
fi
}
#
# The following udev helper functions assume that the provided
# udev rules file will create a /dev/disk/zpool/<CHANNEL><RANK>
# disk mapping. In this mapping each CHANNEL is represented by
# the letters a-z, and the RANK is represented by the numbers
# 1-n. A CHANNEL should identify a group of RANKS which are all
# attached to a single controller, each RANK represents a disk.
# This provides a simply mechanism to locate a specific drive
# given a known hardware configuration.
#
udev_setup() {
local SRC_PATH=$1
# When running in tree manually contruct symlinks in tree to
# the proper devices. Symlinks are installed for all entires
# in the config file regardless of if that device actually
# exists. When installed as a package udev can be relied on for
# this and it will only create links for devices which exist.
if [ ${INTREE} ]; then
PWD=`pwd`
mkdir -p ${DEVDIR}/
cd ${DEVDIR}/
${AWK} '!/^#/ && /./ { system( \
"ln -f -s /dev/disk/by-path/"$2" "$1";" \
"ln -f -s /dev/disk/by-path/"$2"-part1 "$1"p1;" \
"ln -f -s /dev/disk/by-path/"$2"-part9 "$1"p9;" \
) }' $SRC_PATH
cd ${PWD}
else
DST_FILE=`basename ${SRC_PATH} | cut -f1-2 -d'.'`
DST_PATH=/etc/zfs/${DST_FILE}
if [ -e ${DST_PATH} ]; then
die "Error: Config ${DST_PATH} already exists"
fi
cp ${SRC_PATH} ${DST_PATH}
udev_trigger
fi
return 0
}
udev_cleanup() {
local SRC_PATH=$1
if [ ${INTREE} ]; then
PWD=`pwd`
cd ${DEVDIR}/
${AWK} '!/^#/ && /./ { system( \
"rm -f "$1" "$1"p1 "$1"p9") }' $SRC_PATH
cd ${PWD}
fi
return 0
}
udev_cr2d() {
local CHANNEL=`echo "obase=16; $1+96" | bc`
local RANK=$2
printf "\x${CHANNEL}${RANK}"
}
udev_raid0_setup() {
local RANKS=$1
local CHANNELS=$2
local IDX=0
RAID0S=()
for RANK in `seq 1 ${RANKS}`; do
for CHANNEL in `seq 1 ${CHANNELS}`; do
DISK=`udev_cr2d ${CHANNEL} ${RANK}`
RAID0S[${IDX}]="${DEVDIR}/${DISK}"
let IDX=IDX+1
done
done
return 0
}
udev_raid10_setup() {
local RANKS=$1
local CHANNELS=$2
local IDX=0
RAID10S=()
for RANK in `seq 1 ${RANKS}`; do
for CHANNEL1 in `seq 1 2 ${CHANNELS}`; do
let CHANNEL2=CHANNEL1+1
DISK1=`udev_cr2d ${CHANNEL1} ${RANK}`
DISK2=`udev_cr2d ${CHANNEL2} ${RANK}`
GROUP="${DEVDIR}/${DISK1} ${DEVDIR}/${DISK2}"
RAID10S[${IDX}]="mirror ${GROUP}"
let IDX=IDX+1
done
done
return 0
}
udev_raidz_setup() {
local RANKS=$1
local CHANNELS=$2
RAIDZS=()
for RANK in `seq 1 ${RANKS}`; do
RAIDZ=("raidz")
for CHANNEL in `seq 1 ${CHANNELS}`; do
DISK=`udev_cr2d ${CHANNEL} ${RANK}`
RAIDZ[${CHANNEL}]="${DEVDIR}/${DISK}"
done
RAIDZS[${RANK}]="${RAIDZ[*]}"
done
return 0
}
udev_raidz2_setup() {
local RANKS=$1
local CHANNELS=$2
RAIDZ2S=()
for RANK in `seq 1 ${RANKS}`; do
RAIDZ2=("raidz2")
for CHANNEL in `seq 1 ${CHANNELS}`; do
DISK=`udev_cr2d ${CHANNEL} ${RANK}`
RAIDZ2[${CHANNEL}]="${DEVDIR}/${DISK}"
done
RAIDZ2S[${RANK}]="${RAIDZ2[*]}"
done
return 0
}
run_one_test() {
local TEST_NUM=$1
local TEST_NAME=$2
printf "%-4d %-34s " ${TEST_NUM} "${TEST_NAME}"
test_${TEST_NUM}
}
skip_one_test() {
local TEST_NUM=$1
local TEST_NAME=$2
printf "%-4d %-34s " ${TEST_NUM} "${TEST_NAME}"
skip
}
run_test() {
local TEST_NUM=$1
local TEST_NAME=$2
for i in ${TESTS_SKIP[@]}; do
if [[ $i == ${TEST_NUM} ]] ; then
skip_one_test ${TEST_NUM} "${TEST_NAME}"
return 0
fi
done
if [ "${TESTS_RUN[0]}" = "*" ]; then
run_one_test ${TEST_NUM} "${TEST_NAME}"
else
for i in ${TESTS_RUN[@]}; do
if [[ $i == ${TEST_NUM} ]] ; then
run_one_test ${TEST_NUM} "${TEST_NAME}"
return 0
fi
done
skip_one_test ${TEST_NUM} "${TEST_NAME}"
fi
}
wait_udev() {
local DEVICE=$1
local DELAY=$2
local COUNT=0
udev_trigger
while [ ! -e ${DEVICE} ]; do
if [ ${COUNT} -gt ${DELAY} ]; then
return 1
fi
let COUNT=${COUNT}+1
sleep 1
done
return 0
}
stack_clear() {
local STACK_MAX_SIZE=/sys/kernel/debug/tracing/stack_max_size
local STACK_TRACER_ENABLED=/proc/sys/kernel/stack_tracer_enabled
if [ -e $STACK_MAX_SIZE ]; then
echo 1 >$STACK_TRACER_ENABLED
echo 0 >$STACK_MAX_SIZE
fi
}
stack_check() {
local STACK_MAX_SIZE=/sys/kernel/debug/tracing/stack_max_size
local STACK_TRACE=/sys/kernel/debug/tracing/stack_trace
local STACK_LIMIT=7000
if [ -e $STACK_MAX_SIZE ]; then
STACK_SIZE=`cat $STACK_MAX_SIZE`
if [ $STACK_SIZE -ge $STACK_LIMIT ]; then
echo
echo "Warning: max stack size $STACK_SIZE bytes"
cat $STACK_TRACE
fi
fi
}