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|
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
UBLK_SKIP_CODE=4
_have_program() {
if command -v "$1" >/dev/null 2>&1; then
return 0
fi
return 1
}
_get_disk_dev_t() {
local dev_id=$1
local dev
local major
local minor
dev=/dev/ublkb"${dev_id}"
major=$(stat -c '%Hr' "$dev")
minor=$(stat -c '%Lr' "$dev")
echo $(( (major & 0xfff) << 20 | (minor & 0xfffff) ))
}
_create_backfile() {
local my_size=$1
local my_file
my_file=$(mktemp ublk_file_"${my_size}"_XXXXX)
truncate -s "${my_size}" "${my_file}"
echo "$my_file"
}
_remove_backfile() {
local file=$1
[ -f "$file" ] && rm -f "$file"
}
_create_tmp_dir() {
local my_file;
my_file=$(mktemp -d ublk_dir_XXXXX)
echo "$my_file"
}
_remove_tmp_dir() {
local dir=$1
[ -d "$dir" ] && rmdir "$dir"
}
_mkfs_mount_test()
{
local dev=$1
local err_code=0
local mnt_dir;
mnt_dir=$(_create_tmp_dir)
mkfs.ext4 -F "$dev" > /dev/null 2>&1
err_code=$?
if [ $err_code -ne 0 ]; then
return $err_code
fi
mount -t ext4 "$dev" "$mnt_dir" > /dev/null 2>&1
umount "$dev"
err_code=$?
_remove_tmp_dir "$mnt_dir"
if [ $err_code -ne 0 ]; then
return $err_code
fi
}
_check_root() {
local ksft_skip=4
if [ $UID != 0 ]; then
echo please run this as root >&2
exit $ksft_skip
fi
}
_remove_ublk_devices() {
${UBLK_PROG} del -a
modprobe -r ublk_drv > /dev/null 2>&1
}
_get_ublk_dev_state() {
${UBLK_PROG} list -n "$1" | grep "state" | awk '{print $11}'
}
_get_ublk_daemon_pid() {
${UBLK_PROG} list -n "$1" | grep "pid" | awk '{print $7}'
}
_prep_test() {
_check_root
local type=$1
shift 1
modprobe ublk_drv > /dev/null 2>&1
[ "$UBLK_TEST_QUIET" -eq 0 ] && echo "ublk $type: $*"
}
_remove_test_files()
{
local files=$*
for file in ${files}; do
[ -f "${file}" ] && rm -f "${file}"
done
}
_show_result()
{
if [ "$UBLK_TEST_SHOW_RESULT" -ne 0 ]; then
if [ "$2" -eq 0 ]; then
echo "$1 : [PASS]"
elif [ "$2" -eq 4 ]; then
echo "$1 : [SKIP]"
else
echo "$1 : [FAIL]"
fi
fi
[ "$2" -ne 0 ] && exit "$2"
return 0
}
# don't call from sub-shell, otherwise can't exit
_check_add_dev()
{
local tid=$1
local code=$2
shift 2
if [ "${code}" -ne 0 ]; then
_remove_test_files "$@"
_show_result "${tid}" "${code}"
fi
}
_cleanup_test() {
"${UBLK_PROG}" del -a
rm -f "$UBLK_TMP"
}
_have_feature()
{
if $UBLK_PROG "features" | grep "$1" > /dev/null 2>&1; then
return 0
fi
return 1
}
_add_ublk_dev() {
local kublk_temp;
local dev_id;
if [ ! -c /dev/ublk-control ]; then
return ${UBLK_SKIP_CODE}
fi
if echo "$@" | grep -q "\-z"; then
if ! _have_feature "ZERO_COPY"; then
return ${UBLK_SKIP_CODE}
fi
fi
kublk_temp=$(mktemp /tmp/kublk-XXXXXX)
if ! "${UBLK_PROG}" add "$@" > "${kublk_temp}" 2>&1; then
echo "fail to add ublk dev $*"
rm -f "${kublk_temp}"
return 255
fi
dev_id=$(grep "dev id" "${kublk_temp}" | awk -F '[ :]' '{print $3}')
udevadm settle
rm -f "${kublk_temp}"
echo "${dev_id}"
}
# kill the ublk daemon and return ublk device state
__ublk_kill_daemon()
{
local dev_id=$1
local exp_state=$2
local daemon_pid
local state
daemon_pid=$(_get_ublk_daemon_pid "${dev_id}")
state=$(_get_ublk_dev_state "${dev_id}")
for ((j=0;j<50;j++)); do
[ "$state" == "$exp_state" ] && break
kill -9 "$daemon_pid" > /dev/null 2>&1
sleep 1
state=$(_get_ublk_dev_state "${dev_id}")
done
echo "$state"
}
__remove_ublk_dev_return() {
local dev_id=$1
${UBLK_PROG} del -n "${dev_id}"
local res=$?
udevadm settle
return ${res}
}
__run_io_and_remove()
{
local dev_id=$1
local size=$2
local kill_server=$3
fio --name=job1 --filename=/dev/ublkb"${dev_id}" --ioengine=libaio \
--rw=readwrite --iodepth=64 --size="${size}" --numjobs=4 \
--runtime=20 --time_based > /dev/null 2>&1 &
sleep 2
if [ "${kill_server}" = "yes" ]; then
local state
state=$(__ublk_kill_daemon "${dev_id}" "DEAD")
if [ "$state" != "DEAD" ]; then
echo "device isn't dead($state) after killing daemon"
return 255
fi
fi
if ! __remove_ublk_dev_return "${dev_id}"; then
echo "delete dev ${dev_id} failed"
return 255
fi
wait
}
_ublk_test_top_dir()
{
cd "$(dirname "$0")" && pwd
}
UBLK_TMP=$(mktemp ublk_test_XXXXX)
UBLK_PROG=$(_ublk_test_top_dir)/kublk
UBLK_TEST_QUIET=1
UBLK_TEST_SHOW_RESULT=1
export UBLK_PROG
export UBLK_TEST_QUIET
export UBLK_TEST_SHOW_RESULT
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