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#!/bin/ash
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alias debug=${DEBUG:-:}
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# allow env to override nvram
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nvram_get () {
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eval "echo \${$1:-\$(nvram get $1)}"
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}
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. /etc/nvram.overrides
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# valid interface?
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if_valid () (
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[ "${1%%[0-9]}" = "vlan" ] && {
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i=${1#vlan}
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hwname=$(nvram_get vlan${i}hwname)
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hwaddr=$(nvram_get ${hwname}macaddr)
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[ -z "$hwaddr" ] && return 1
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vif=$(ifconfig -a | awk '/^eth.*'$hwaddr'/ {print $1; exit}' IGNORECASE=1)
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debug "# vlan$i: $hwname $hwaddr => $vif"
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$DEBUG ifconfig $vif up
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$DEBUG vconfig add $vif $i 2>/dev/null
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}
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ifconfig "$1" >/dev/null 2>&1 || [ "${1%%[0-9]}" = "br" ]
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)
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