__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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For_More_Tools:
# we will create a $CONFIG_DIR/mappings/mac file if needed
# because the bash option nullglob is set in rear (see usr/sbin/rear)
# PATCH_FILES is empty if nothing matches $TARGET_FS_ROOT/etc/sysconfig/*/ifcfg-*
PATCH_FILES=( $TARGET_FS_ROOT/etc/sysconfig/*/ifcfg-* )
# skip if no network configuration files are found
test $PATCH_FILES || return 0
# if a "mac" is found no need to create one
[[ -f $CONFIG_DIR/mappings/mac ]] && return 0
for file in "${PATCH_FILES[@]}"; do
grep -q HWADDR $file || continue
dev=$(echo $file | cut -d- -f3)
old_mac=$(grep HWADDR $file | cut -d= -f2)
new_mac=$(cat /sys/class/net/$dev/address)
[[ -z "$new_mac" ]] && continue
[[ "$(echo $old_mac | sed -e 'y/abcdef/ABCDEF/')" = "$(echo $new_mac | sed -e 'y/abcdef/ABCDEF/')" ]] && continue
echo "$old_mac $new_mac $dev" >> $CONFIG_DIR/mappings/mac
done