#!/bin/sh
# Copyright (c) Huawei Technologies Co., Ltd. 2018-2019. All rights reserved.
# syscontainer-tools is licensed under the Mulan PSL v2.
# You can use this software according to the terms and conditions of the Mulan PSL v2.
# You may obtain a copy of Mulan PSL v2 at:
#    http://license.coscl.org.cn/MulanPSL2
# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
# PURPOSE.
# See the Mulan PSL v2 for more details.
# Description: syscontainer tools wrapper
# Author: zhangsong234
# Create: 2020-01-17

LOG_DIR=/var/log/hyperagent
LOG_FILE=${LOG_DIR}/syscontainer-tools.log

## by default, isulad is installed in /usr/bin,
## but udevd do not have this path in PATH env
export PATH=$PATH:/usr/bin:/usr/local/bin:/usr/sbin
[ -d "$LOG_DIR" ] || mkdir -p $LOG_DIR

run_cmd() {
	echo [$(date)]: $@ >> $LOG_FILE
	$@
}
add_node() {
	run_cmd syscontainer-tools --log $LOG_FILE add-device $id /dev/$o_dev:$devname
}
remove_node() {
	run_cmd syscontainer-tools --log $LOG_FILE remove-device $id /dev/$o_dev:$devname
}


## $1 : Udev Action: (add|remove)
## $2 : Container ID
## $3 : Devname to mknod on host, like: sdc1
## $4 : Contianer device basename, like /dev/sdx
## $5 : Basename of the device on host and kernel
##
##      We need to get the mknod number and compose with container device name together.
##      eg: $3=sdc1, $4=/dev/sdx $5=sdc
##      ==> $4 + ($3-$5) = /dev/sdx1
action=$1
id=$2
o_dev=$3
devname=$4$(echo $3 | sed "s/$5//g")

${action}_node