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#!/bin/sh
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get_ip() {
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local iface="$1" ip=""
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ip=$(ip -o -f inet addr show $iface)
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ip=${ip%%/*}
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ip=${ip##* }
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}
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iface_for_remote_addr() {
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set -- $(ip -o route get to $1)
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echo $5
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}
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iface_for_mac() {
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local interface="" mac="$(echo $1 | tr '[:upper:]' '[:lower:]')"
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for interface in /sys/class/net/*; do
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if [ $(cat $interface/address) = "$mac" ]; then
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echo ${interface##*/}
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fi
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done
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}
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iface_has_link() {
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local interface="$1" flags=""
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[ -n "$interface" ] || return 2
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interface="/sys/class/net/$interface"
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[ -d "$interface" ] || return 2
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flags=$(cat $interface/flags)
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echo $(($flags|0x41)) > $interface/flags # 0x41: IFF_UP|IFF_RUNNING
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[ "$(cat $interface/carrier)" = 1 ] || return 1
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# XXX Do we need to reset the flags here? anaconda never bothered..
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}
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