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#!/bin/sh
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
# Copyright (C) 2018 - David Oberhollenzer
#
# 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 3 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, see <https://www.gnu.org/licenses/>.
#
NAMERULES="@ETCPATH@/netcfg/ifrename"
TMPPATH="/tmp/ifrename"
[ -f "$NAMERULES" ] || exit 0
mkdir -p "$TMPPATH"
for IFPATH in /sys/class/net/*; do
[ "$IFPATH" == "/sys/class/net/lo" ] && continue
IF=`basename $IFPATH`
MAC=`cat $IFPATH/address`
grep "^[^,]\+,[^,]\+,[a-zA-Z0-9]\+$" $NAMERULES | while read LINE;
do
NAMECMP=$(echo $LINE | cut -d',' -f1)
ADDRCMP=$(echo $LINE | cut -d',' -f2)
RULE=$(echo $LINE | cut -d',' -f3)
case $IF in ($NAMECMP) ;; *) continue;; esac
case $MAC in ($ADDRCMP) ;; *) continue;; esac
echo "$MAC,$IF" >> "$TMPPATH/$RULE"
break
done
done
for FNAME in $TMPPATH/*; do
[ ! -f "$FNAME" ] && break
IDX=0
PREFIX=$(basename $FNAME)
sort -t',' -k1 -u $FNAME | while read LINE;
do
OLDNAME=$(echo $LINE | cut -d',' -f2)
NEWNAME="$PREFIX$IDX"
IDX=`expr $IDX + 1`
ip link set "$OLDNAME" name "$NEWNAME"
done
rm "$FNAME"
done
rmdir "$TMPPATH"
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