【Joytag 香蕉R1学习：六】OpenWrt for R1：设置主机名、时区、LED

#!/bin/sh /etc/rc.common
# Copyright (C) 2014 OpenWrt.org

START=10
USE_PROCD=1

validate_system_section()
{
        uci_validate_section system system "${1}" \
                'hostname:string:OpenWrt' \
                'conloglevel:uinteger' \
                'buffersize:uinteger' \
                'timezone:string:UTC' \
                'zonename:string'
}

system_config() {
        local cfg="$1"

        local hostname conloglevel buffersize timezone zonename

        validate_system_section "${1}" || {
                echo "validation failed"
                return 1
        }

        echo "$hostname" > /proc/sys/kernel/hostname
        [ -z "$conloglevel" -a -z "$buffersize" ] || dmesg ${conloglevel:+-n $conloglevel} ${buffersize:+-s $buffersize}
        echo "$timezone" > /tmp/TZ
        [ -n "$zonename" ] && [ -f "/usr/share/zoneinfo/$zonename" ] && ln -s "/usr/share/zoneinfo/$zonename" /tmp/localtime

        # apply timezone to kernel
        date -k
}

reload_service() {
        config_load system
        config_foreach system_config system
}

service_triggers()
{
        procd_add_reload_trigger "system"
        procd_add_validation validate_system_section
}

start_service() {
        reload_service
}