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#!/bin/sh
# if there are no ifname parameters, just use NAME=KERNEL
if ! getarg ifname= > /dev/null; then
return
fi
command -v parse_ifname_opts > /dev/null || . /lib/net-lib.sh
{
for p in $(getargs ifname=); do
parse_ifname_opts "$p"
if [ -f /tmp/ifname-"$ifname_mac" ]; then
read -r oldif < /tmp/ifname-"$ifname_mac"
fi
if [ -f /tmp/ifname-"$ifname_if" ]; then
read -r oldmac < /tmp/ifname-"$ifname_if"
fi
if [ -n "$oldif" ] && [ -n "$oldmac" ] && [ "$oldif" = "$ifname_if" ] && [ "$oldmac" = "$ifname_mac" ]; then
# skip same ifname= declaration
continue
fi
[ -n "$oldif" ] && warn "Multiple interface names specified for MAC $ifname_mac: $oldif"
[ -n "$oldmac" ] && warn "Multiple MAC specified for $ifname_if: $oldmac"
printf 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="%s", ATTR{type}=="1", NAME="%s"\n' "$ifname_mac" "$ifname_if"
echo "$ifname_if" > /tmp/ifname-"$ifname_mac"
echo "$ifname_mac" > /tmp/ifname-"$ifname_if"
done
} >> /etc/udev/rules.d/80-ifname.rules
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