OpenWrt – Rev 4

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#!/bin/sh

ifup_all=
setup_wifi=

if_call() {
        local interface="$1"
        for mode in $modes; do
                ubus call network.interface $mode "{ \"interface\" : \"$interface\" }"
        done
}

case "$0" in
        *ifdown) modes=down;;
        *ifup)
                modes="down up"
                setup_wifi=1
        ;;
        *) echo "Invalid command: $0";;
esac

while :; do
        case "$1" in
                -a)
                        ifup_all=1
                        shift
                ;;
                -w)
                        setup_wifi=
                        shift
                ;;
                *)
                        break
                ;;
        esac
done

[ "$modes" = "down up" ] && ubus call network reload
if [ -n "$ifup_all" ]; then
        for interface in `ubus -S list 'network.interface.*'`; do
                if_call "${interface##network.interface.}"
        done
        [ -n "$setup_wifi" ] && /sbin/wifi up
        exit
else
        ubus -S list "network.interface.$1" > /dev/null || {
                echo "Interface $1 not found"
                exit
        }
        if_call "$1"
fi

if [ -n "$setup_wifi" ] && grep -sq config /etc/config/wireless; then
        . /lib/functions.sh

        find_related_radios() {
                local wdev wnet
                config_get wdev "$1" device
                config_get wnet "$1" network

                if [ -n "$wdev" ]; then
                        for wnet in $wnet; do
                                if [ "$wnet" = "$network" ]; then
                                        append radio_devs "$wdev" "$N"
                                fi
                        done
                fi
        }

        network="$1"
        config_load wireless
        config_foreach find_related_radios wifi-iface

        for dev in $(echo "$radio_devs" | sort -u); do
                /sbin/wifi up "$dev"
        done
fi