openwrt在脚本中调用UCI接口, 非常值得学习

官方参考 http://wiki.openwrt.org/doc/devel/config-scripting

Loading

To be able to load UCI configuration files, you need to include the common functions with:

. /lib/functions.sh

Then you can use config_load name to load config files.

The function first checks for name as absolute filename and falls back to loading it from /etc/config/ (which is the most common way of using it).

2. /lib/functions.sh: 常用函数集锦, 用法如下

config_load 配置文件名
config_foreach 遍历函数名 Section类型
config_get

[]
config_get

config_get_bool 变量名 Section名 Section参数名: 获取布尔型的值

#!/bin/sh
# Copyright (C) 2006-2013 OpenWrt.org
# Copyright (C) 2006 Fokus Fraunhofer <[e-mail]>
# Copyright (C) 2010 Vertical Communications


debug () {
    ${DEBUG:-:} "$@"
}

# newline
N="
"

_C=0
NO_EXPORT=1
LOAD_STATE=1
LIST_SEP=" "

hotplug_dev() {
    env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug-call net
}

append() {
    local var="$1"
    local value="$2"
    local sep="${3:- }"

    eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
}

list_contains() {
    local var="$1"
    local str="$2"
    local val

    eval "val=\" \${$var} \""
    [ "${val%% $str *}" != "$val" ]
}

list_remove() {
    local var="$1"
    local remove="$2"
    local val

    eval "val=\" \${$var} \""
    val1="${val%% $remove *}"
    [ "$val1" = "$val" ] && return
    val2="${val##* $remove }"
    [ "$val2" = "$val" ] && return
    val="${val1## } ${val2%% }"
    val="${val%% }"
    eval "export ${NO_EXPORT:+-n} -- \"$var=\$val\""
}

config_load() {
    [ -n "$IPKG_INSTROOT" ] && return 0
    uci_load "$@"    #
}

reset_cb() {
    config_cb() { return 0; }
    option_cb() { return 0; }
    list_cb() { return 0; }
}
reset_cb

package() {
    return 0
}

config () {
    local cfgtype="$1"
    local name="$2"

    export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
    name="${name:-cfg$CONFIG_NUM_SECTIONS}"
    append CONFIG_SECTIONS "$name"
    [ -n "$NO_CALLBACK" ] || config_cb "$cfgtype" "$name"
    export ${NO_EXPORT:+-n} CONFIG_SECTION="$name"
    export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
}

option () {
    local varname="$1"; shift
    local value="$*"

    export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value"
    [ -n "$NO_CALLBACK" ] || option_cb "$varname" "$*"
}

list() {
    local varname="$1"; shift
    local value="$*"
    local len

    config_get len "$CONFIG_SECTION" "${varname}_LENGTH" 0
    [ $len = 0 ] && append CONFIG_LIST_STATE "${CONFIG_SECTION}_${varname}"
    len=$(($len + 1))
    config_set "$CONFIG_SECTION" "${varname}_ITEM$len" "$value"
    config_set "$CONFIG_SECTION" "${varname}_LENGTH" "$len"
    append "CONFIG_${CONFIG_SECTION}_${varname}" "$value" "$LIST_SEP"
    list_cb "$varname" "$*"
}

config_rename() {
    local OLD="$1"
    local NEW="$2"
    local oldvar
    local newvar

    [ -n "$OLD" -a -n "$NEW" ] || return
    for oldvar in `set | grep ^CONFIG_${OLD}_ | \
        sed -e 's/\(.*\)=.*$/\1/'` ; do
        newvar="CONFIG_${NEW}_${oldvar##CONFIG_${OLD}_}"
        eval "export ${NO_EXPORT:+-n} \"$newvar=\${$oldvar}\""
        unset "$oldvar"
    done
    export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , $NEW ,")"

    [ "$CONFIG_SECTION" = "$OLD" ] && export ${NO_EXPORT:+-n} CONFIG_SECTION="$NEW"
}

config_unset() {
    config_set "$1" "$2" ""
}

config_clear() {
    local SECTION="$1"
    local oldvar

    list_remove CONFIG_SECTIONS "$SECTION"
    export ${NO_EXPORT:+-n} CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}"

    for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \
        sed -e 's/\(.*\)=.*$/\1/'` ; do
        unset $oldvar
    done
}

# config_get <variable> <section> <option> [<default>]
# config_get <section> <option>
config_get() {
    case "$3" in
        "") eval echo "\${CONFIG_${1}_${2}:-\${4}}";;
        *) eval export ${NO_EXPORT:+-n} -- "${1}=\${CONFIG_${2}_${3}:-\${4}}";;
    esac
}

# config_get_bool <variable> <section> <option> [<default>]
config_get_bool() {
    local _tmp
    config_get _tmp "$2" "$3" "$4"
    case "$_tmp" in
        1|on|true|enabled) _tmp=1;;
        0|off|false|disabled) _tmp=0;;
        *) _tmp="$4";;
    esac
    export ${NO_EXPORT:+-n} "$1=$_tmp"
}

config_set() {
    local section="$1"
    local option="$2"
    local value="$3"
    local old_section="$CONFIG_SECTION"

    CONFIG_SECTION="$section"
    option "$option" "$value"
    CONFIG_SECTION="$old_section"
}

config_foreach() {
    local ___function="$1"
    [ "$#" -ge 1 ] && shift
    local ___type="$1"
    [ "$#" -ge 1 ] && shift
    local section cfgtype

    [ -z "$CONFIG_SECTIONS" ] && return 0
    for section in ${CONFIG_SECTIONS}; do
        config_get cfgtype "$section" TYPE
        [ -n "$___type" -a "x$cfgtype" != "x$___type" ] && continue
        eval "$___function \"\$section\" \"\$@\""
    done
}

config_list_foreach() {
    [ "$#" -ge 3 ] || return 0
    local section="$1"; shift
    local option="$1"; shift
    local function="$1"; shift
    local val
    local len
    local c=1

    config_get len "${section}" "${option}_LENGTH"
    [ -z "$len" ] && return 0
    while [ $c -le "$len" ]; do
        config_get val "${section}" "${option}_ITEM$c"
        eval "$function \"\$val\" \"\$@\""
        c="$(($c + 1))"
    done
}

insert_modules() {
    [ -d /etc/modules.d ] && {
        cd /etc/modules.d
        sed 's/^[^#]/insmod &/' $* | ash 2>&- || :
    }
}

include() {
    local file

    for file in $(ls $1/*.sh 2>/dev/null); do
        . $file
    done
}

find_mtd_index() {
    local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')"
    local INDEX="${PART##mtd}"

    echo ${INDEX}
}

find_mtd_part() {
    local INDEX=$(find_mtd_index "$1")
    local PREFIX=/dev/mtdblock

    [ -d /dev/mtdblock ] && PREFIX=/dev/mtdblock/
    echo "${INDEX:+$PREFIX$INDEX}"
}

find_mtd_chardev() {
    local INDEX=$(find_mtd_index "$1")
    local PREFIX=/dev/mtd

    [ -d /dev/mtd ] && PREFIX=/dev/mtd/
    echo "${INDEX:+$PREFIX$INDEX}"
}

mtd_get_mac_ascii()
{
    local mtdname="$1"
    local key="$2"
    local part
    local mac_dirty

    part=$(find_mtd_part "$mtdname")
    if [ -z "$part" ]; then
        echo "mtd_get_mac_ascii: partition $mtdname not found!" >&2
        return
    fi

    mac_dirty=$(strings "$part" | sed -n 's/^'"$key"'=//p')

    # "canonicalize" mac
    [ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty"
}

mtd_get_blob()
{
    local mtdname="$1"
    local offset="$2"
    local count="$3"
    local firmware="$4"
    local part

    part=$(find_mtd_part "$mtdname")
    if [ -z "$part" ]; then
        echo "mtd_get_blob: partition $mtdname not found!" >&2
        return 1
    fi

    dd if=$part of=$firmware bs=1 skip=$offset count=$count 2>/dev/null || {
        echo "mtd_get_blob: failed to extract $firmware from $part" >&2
        return 1
    }
}

mtd_get_mac_binary() {
    local mtdname="$1"
    local offset="$2"
    local part

    part=$(find_mtd_part "$mtdname")
    if [ -z "$part" ]; then
        echo "mtd_get_mac_binary: partition $mtdname not found!" >&2
        return
    fi

    dd bs=1 skip=$offset count=6 if=$part 2>/dev/null | hexdump -v -n 6 -e '5/1 "%02x:" 1/1 "%02x"'
}

mtd_get_part_size() {
    local part_name=$1
    local first dev size erasesize name
    while read dev size erasesize name; do
        name=${name#'"'}; name=${name%'"'}
        if [ "$name" = "$part_name" ]; then
            echo $((0x$size))
            break
        fi
    done < /proc/mtd
}

macaddr_add() {
    local mac=$1
    local val=$2
    local oui=${mac%:*:*:*}
    local nic=${mac#*:*:*:}

    nic=$(printf "%06x" $((0x${nic//:/} + $val & 0xffffff)) | sed 's/^\(.\{2\}\)\(.\{2\}\)\(.\{2\}\)/\1:\2:\3/')
    echo $oui:$nic
}

macaddr_setbit_la()
{
    local mac=$1

    printf "%02x:%s" $((0x${mac%%:*} | 0x02)) ${mac#*:}
}

macaddr_2bin()
{
    local mac=$1

    echo -ne \\x${mac//:/\\x}
}

macaddr_canonicalize()
{
    local mac="$1"
    local canon=""

    [ ${#mac} -gt 17 ] && return
    [ -n "${mac//[a-fA-F0-9\.: -]/}" ] && return

    for octet in ${mac//[\.:-]/ }; do
        case "${#octet}" in
        1)
            octet="0${octet}"
            ;;
        2)
            ;;
        4)
            octet="${octet:0:2} ${octet:2:2}"
            ;;
        12)
            octet="${octet:0:2} ${octet:2:2} ${octet:4:2} ${octet:6:2} ${octet:8:2} ${octet:10:2}"
            ;;
        *)
            return
            ;;
        esac
        canon=${canon}${canon:+ }${octet}
    done

    [ ${#canon} -ne 17 ] && return

    printf "%02x:%02x:%02x:%02x:%02x:%02x" 0x${canon// / 0x} 2>/dev/null
}

strtok() { #  {  [] ... }
    local tmp
    local val="$1"
    local count=0

    shift

    while [ $# -gt 1 ]; do
        tmp="${val%%$2*}"

        [ "$tmp" = "$val" ] && break

        val="${val#$tmp$2}"

        export ${NO_EXPORT:+-n} "$1=$tmp"; count=$((count+1))
        shift 2
    done

    if [ $# -gt 0 -a -n "$val" ]; then
        export ${NO_EXPORT:+-n} "$1=$val"; count=$((count+1))
    fi

    return $count
}


jffs2_mark_erase() {
    local part="$(find_mtd_part "$1")"
    [ -z "$part" ] && {
        echo Partition not found.
        return 1
    }
    echo -e "\xde\xad\xc0\xde" | mtd -qq write - "$1"
}

uci_apply_defaults() {
    cd /etc/uci-defaults || return 0
    files="$(ls)"
    [ -z "$files" ] && return 0
    mkdir -p /tmp/.uci
    for file in $files; do
        ( . "./$(basename $file)" ) && rm -f "$file"
    done
    uci commit
}

group_add() {
    local name="$1"
    local gid="$2"
    local rc
    [ -f "${IPKG_INSTROOT}/etc/group" ] || return 1
    [ -n "$IPKG_INSTROOT" ] || lock /var/lock/group
    echo "${name}:x:${gid}:" >> ${IPKG_INSTROOT}/etc/group
    rc=$?
    [ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/group
    return $rc
}

group_exists() {
    grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/group
}

user_add() {
    local name="${1}"
    local uid="${2}"
    local gid="${3:-$2}"
    local desc="${4:-$1}"
    local home="${5:-/var/run/$1}"
    local shell="${6:-/bin/false}"
    local rc
    [ -f "${IPKG_INSTROOT}/etc/passwd" ] || return 1
    [ -n "$IPKG_INSTROOT" ] || lock /var/lock/passwd
    echo "${name}:x:${uid}:${gid}:${desc}:${home}:${shell}" >> ${IPKG_INSTROOT}/etc/passwd
    echo "${name}:x:0:0:99999:7:::" >> ${IPKG_INSTROOT}/etc/shadow
    rc=$?
    [ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/passwd
    return $rc
}

user_exists() {
    grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/passwd
}


pi_include() {
    if [ -f "/tmp/overlay/$1" ]; then
        . "/tmp/overlay/$1"
    elif [ -f "$1" ]; then
        . "$1"
    elif [ -d "/tmp/overlay/$1" ]; then
        if [ -n "$(ls /tmp/overlay/$1/*.sh 2>/dev/null)" ]; then
            for src_script in /tmp/overlay/$1/*.sh; do
                . "$src_script"
            done
        fi
    elif [ -d "$1" ]; then
        if [ -n "$(ls $1/*.sh 2>/dev/null)" ]; then
            for src_script in $1/*.sh; do
                . "$src_script"
            done
        fi
    else
        echo "WARNING: $1 not found"
        return 1
    fi
    return 0
}

boot_hook_splice_start() {
    export -n PI_HOOK_SPLICE=1
}

boot_hook_splice_finish() {
    local hook
    for hook in $PI_STACK_LIST; do
        local v; eval "v=\${${hook}_splice:+\$${hook}_splice }$hook"
        export -n "${hook}=${v% }"
        export -n "${hook}_splice="
    done
    export -n PI_HOOK_SPLICE=
}

boot_hook_init() {
    local hook="${1}_hook"
    export -n "PI_STACK_LIST=${PI_STACK_LIST:+$PI_STACK_LIST }$hook"
    export -n "$hook="
}

boot_hook_add() {
    local hook="${1}_hook${PI_HOOK_SPLICE:+_splice}"
    local func="${2}"

    [ -n "$func" ] && {
        local v; eval "v=\$$hook"
        export -n "$hook=${v:+$v }$func"
    }
}

boot_hook_shift() {
    local hook="${1}_hook"
    local rvar="${2}"

    local v; eval "v=\$$hook"
    [ -n "$v" ] && {
        local first="${v%% *}"

        [ "$v" != "${v#* }" ] && \
            export -n "$hook=${v#* }" || \
            export -n "$hook="

        export -n "$rvar=$first"
        return 0
    }

    return 1
}

boot_run_hook() {
    local hook="$1"
    local func

    while boot_hook_shift "$hook" func; do
        local ran; eval "ran=\$PI_RAN_$func"
        [ -n "$ran" ] || {
            export -n "PI_RAN_$func=1"
            $func "$1" "$2"
        }
    done
}

jffs2_ready() {
    mtdpart="$(find_mtd_part rootfs_data)"
    [ -z "$mtdpart" ] && return 1
    magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')
    [ "$magic" != "deadc0de" ]
}

dupe() { #
    cd $1
    echo -n "creating directories... "
    {
        cd $2
        find . -xdev -type d
        echo "./dev ./overlay ./mnt ./proc ./tmp"
        # xdev skips mounted directories
        cd $1
    } | xargs mkdir -p
    echo "done"

    echo -n "setting up symlinks... "
    for file in $(cd $2; find . -xdev -type f;); do
        case "$file" in
        ./rom/note) ;; #nothing
        ./etc/config*|\
        ./usr/lib/opkg/info/*) cp -af $2/$file $file;;
        *) ln -sf /rom/${file#./*} $file;;
        esac
    done
    for file in $(cd $2; find . -xdev -type l;); do
        cp -af $2/${file#./*} $file
    done
    echo "done"
}

pivot() { #
    /bin/mount -o noatime,move /proc $1/proc && \
    pivot_root $1 $1$2 && {
        /bin/mount -o noatime,move $2/dev /dev
        /bin/mount -o noatime,move $2/tmp /tmp
        /bin/mount -o noatime,move $2/sys /sys 2>&-
        /bin/mount -o noatime,move $2/overlay /overlay 2>&-
        return 0
    }
}

fopivot() { #
    root=$1
    {
        if grep -q overlay /proc/filesystems; then
            /bin/mount -o noatime,lowerdir=/,upperdir=$1 -t overlayfs "overlayfs:$1" /mnt && root=/mnt
        elif grep -q mini_fo /proc/filesystems; then
            /bin/mount -t mini_fo -o noatime,base=/,sto=$1 "mini_fo:$1" /mnt 2>&- && root=/mnt
        else
            /bin/mount --bind -o noatime / /mnt
            /bin/mount --bind -o noatime,union "$1" /mnt && root=/mnt
        fi
    } || {
        [ "$3" = "1" ] && {
        /bin/mount | grep "on $1 type" 2>&- 1>&- || /bin/mount -o noatime,bind $1 $1
        dupe $1 $rom
        }
    }
    pivot $root $2
}

ramoverlay() {
    mkdir -p /tmp/root
    /bin/mount -t tmpfs -o noatime,mode=0755 root /tmp/root
    fopivot /tmp/root /rom 1
}

[ -z "$IPKG_INSTROOT

/lib/config/uci.sh

#!/bin/sh
# Shell script compatibility wrappers for /sbin/uci
#
# Copyright (C) 2008-2010  OpenWrt.org
# Copyright (C) 2008  Felix Fietkau <[e-mail]>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

CONFIG_APPEND=
uci_load() {
    local PACKAGE="$1"
    local DATA
    local RET
    local VAR

    _C=0
    if [ -z "$CONFIG_APPEND" ]; then
        for VAR in $CONFIG_LIST_STATE; do
            export ${NO_EXPORT:+-n} CONFIG_${VAR}=
            export ${NO_EXPORT:+-n} CONFIG_${VAR}_LENGTH=
        done
        export ${NO_EXPORT:+-n} CONFIG_LIST_STATE=
        export ${NO_EXPORT:+-n} CONFIG_SECTIONS=
        export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=0
        export ${NO_EXPORT:+-n} CONFIG_SECTION=
    fi

    DATA="$(/sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} ${LOAD_STATE:+-P /var/state} -S -n export "$PACKAGE" 2>/dev/null)"
    RET="$?"
    [ "$RET" != 0 -o -z "$DATA" ] || eval "$DATA"
    unset DATA

    ${CONFIG_SECTION:+config_cb}
    return "$RET"
}

uci_set_default() {
    local PACKAGE="$1"
    /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} -q show "$PACKAGE" > /dev/null && return 0
    /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} import "$PACKAGE"
    /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} commit "$PACKAGE"
}

uci_revert_state() {
    local PACKAGE="$1"
    local CONFIG="$2"
    local OPTION="$3"

    /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} -P /var/state revert "$PACKAGE${CONFIG:+.$CONFIG}${OPTION:+.$OPTION}"
}

uci_set_state() {
    local PACKAGE="$1"
    local CONFIG="$2"
    local OPTION="$3"
    local VALUE="$4"

    [ "$#" = 4 ] || return 0
    /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} -P /var/state set "$PACKAGE.$CONFIG${OPTION:+.$OPTION}=$VALUE"
}

uci_toggle_state() {
    uci_revert_state "$1" "$2" "$3"
    uci_set_state "$1" "$2" "$3" "$4"
}

uci_set() {
    local PACKAGE="$1"
    local CONFIG="$2"
    local OPTION="$3"
    local VALUE="$4"

    /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} set "$PACKAGE.$CONFIG.$OPTION=$VALUE"
}

uci_get_state() {
    uci_get "$1" "$2" "$3" "$4" "/var/state"
}

uci_get() {
    local PACKAGE="$1"
    local CONFIG="$2"
    local OPTION="$3"
    local DEFAULT="$4"
    local STATE="$5"

    /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} ${STATE:+-P $STATE} -q get "$PACKAGE${CONFIG:+.$CONFIG}${OPTION:+.$OPTION}"
    RET="$?"
    [ "$RET" -ne 0 ] && [ -n "$DEFAULT" ] && echo "$DEFAULT"
    return "$RET"
}

uci_add() {
    local PACKAGE="$1"
    local TYPE="$2"
    local CONFIG="$3"

    if [ -z "$CONFIG" ]; then
        export ${NO_EXPORT:+-n} CONFIG_SECTION="$(/sbin/uci add "$PACKAGE" "$TYPE")"
    else
        /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} set "$PACKAGE.$CONFIG=$TYPE"
        export ${NO_EXPORT:+-n} CONFIG_SECTION="$CONFIG"
    fi
}

uci_rename() {
    local PACKAGE="$1"
    local CONFIG="$2"
    local VALUE="$3"

    /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} rename "$PACKAGE.$CONFIG=$VALUE"
}

uci_remove() {
    local PACKAGE="$1"
    local CONFIG="$2"
    local OPTION="$3"

    /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} del "$PACKAGE.$CONFIG${OPTION:+.$OPTION}"
}

uci_commit() {
    local PACKAGE="$1"
    /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} commit $PACKAGE
}

3. 应用实例, 如/etc/config/system文件有如下内容

config restorefactory
    option button 'reset'
    option action 'pressed'
    option timeout '2'

config led
    option name 'flashing'
    option sysfs 'tp-link:blue:config'
    option trigger 'timer'
    option delayon '800'
    option delayoff '800'

config led
    option name 'Relay'
    option sysfs 'tp-link:blue:relay'
    option trigger 'none'
    option default '0'

遍历restorefactory中的变量

system_config() {
    config_get button "$1" button "reset"
    config_get action "$1" action "pressed"
    config_get timeout "$1" timeout "2"
}

config_load system
config_foreach system_config restorefactory

/etc/init.d/led, 控制LED

#!/bin/sh /etc/rc.common
# (C) 2008 openwrt.org

START=96

load_led() {
    local name
    local sysfs
    local trigger
    local dev
    local mode
    local default
    local delayon
    local delayoff
    local interval

    config_get sysfs $1 sysfs
    config_get name $1 name "$sysfs"
    config_get trigger $1 trigger "none"
    config_get dev $1 dev
    config_get mode $1 mode "link"
    config_get_bool default $1 default "nil"
    config_get delayon $1 delayon
    config_get delayoff $1 delayoff
    config_get interval $1 interval "50"
    config_get port_state $1 port_state
    config_get delay $1 delay "150"
    config_get message $1 message ""

    if [ "$trigger" = "rssi" ]; then
        # handled by rssileds userspace process
        return
    fi

    [ -e /sys/class/leds/${sysfs}/brightness ] && {
        echo "setting up led ${name}"
        [ "$default" != nil ] && {
            [ $default -eq 1 ] &&
                echo 1 >/sys/class/leds/${sysfs}/brightness
            [ $default -eq 1 ] ||
                echo 0 >/sys/class/leds/${sysfs}/brightness
        }
        echo $trigger > /sys/class/leds/${sysfs}/trigger
        case "$trigger" in
        "netdev")
            [ -n "$dev" ] && {
                echo $dev > /sys/class/leds/${sysfs}/device_name
                echo $mode > /sys/class/leds/${sysfs}/mode
            }
            ;;

        "timer")
            [ -n "$delayon" ] && \
                echo $delayon > /sys/class/leds/${sysfs}/delay_on
            [ -n "$delayoff" ] && \
                echo $delayoff > /sys/class/leds/${sysfs}/delay_off
            ;;

        "usbdev")
            [ -n "$dev" ] && {
                echo $dev > /sys/class/leds/${sysfs}/device_name
                echo $interval > /sys/class/leds/${sysfs}/activity_interval
            }
            ;;

        "port_state")
            [ -n "$port_state" ] && \
                echo $port_state > /sys/class/leds/${sysfs}/port_state
            ;;

        "morse")
            echo $message > /sys/class/leds/${sysfs}/message
            echo $delay > /sys/class/leds/${sysfs}/delay
            ;;

        switch[0-9]*)
            local port_mask

            config_get port_mask $1 port_mask
            [ -n "$port_mask" ] && \
                echo $port_mask > /sys/class/leds/${sysfs}/port_mask
            ;;
        esac
    }
}

start() {
    [ -e /sys/class/leds/ ] && {
        config_load system
        config_foreach load_led led
    }
}

#!/bin/sh /etc/rc.common
START=50

run_njit()
{
    local enable
    config_get_bool enable $1 enable

    if [ $enable ]; then
        local username
        local password
        local domain
        local ifname

        config_get username $1 username
        config_get password $1 password
        config_get domain $1 domain
        config_get ifname $1 ifname

        if [ "$domain" != "" ]; then
            njit-client $username@$domain $password $ifname &
        else
            njit-client $username $password $ifname &
        fi

        echo "NJIT Client has started."
    fi
}

start()
{
    config_load njitclient
    config_foreach run_njit login
}

stop()
{
    killall njit-client
    killall udhcpc

    echo "NJIT Client has stoped."
}