openwrt/target/linux/ramips/base-files/sbin/fixup-mac-address
Davide Ammirata 004cc22e4e ramips: add support for mqmaker witi 512mb version
Splitted out the dts file and create the new dts for the 256 MByte RAM and
the 512 MB RAM version.

Migrate both versions to the common board detection.

The install the 512 MByte Version on a board running the 256 MByte image,
a forceful sysupgrade with the -F flag is required.

Signed-off-by: Davide Ammirata <list@davidea.it>
2018-05-07 18:54:23 +02:00

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#!/bin/sh
. /lib/functions.sh
. /lib/functions/system.sh
partname=""
offset=""
NEW_MAC=
YES=
board=$(board_name)
case $board in
mqmaker,witi-256m|\
mqmaker,witi-512m)
partname=factory
offset=$((0xe000))
;;
*)
echo "Unsupported board"
exit 1
;;
esac
while [ -n "$1" ]; do
case "$1" in
??:??:??:??:??:??) NEW_MAC="$1";;
-y) YES=1;;
*)
cat <<EOF
Unknown option/argument '$1'
Usage: $0 [-y] [<macaddr>]
EOF
exit 1
;;
esac
shift
done
ask_bool() {
local message="$1"
local default="$((! ${2:-0}))"
[ -n "$YES" ] && return 0
echo -n "$message "
read opt
case "$opt" in
y|Y) return 0;;
n|N) return 1;;
*) return $default;;
esac
}
convert_hex() {
hexdump -e '/1 "%02x "'
}
gen_mac() {
dd if=/dev/urandom bs=6 count=1 2>/dev/null
}
mac="$(mtd_get_mac_binary $partname $offset)"
case "$mac" in
00:00:00:00:00:00);;
ff:ff:ff:ff:ff:ff);;
*)
echo "Current MAC address: $mac"
ask_bool "Overwrite (y/N)?" 0 || exit
;;
esac
if [ -n "$NEW_MAC" ]; then
set -- $(echo "$NEW_MAC" | sed 's,:, ,g')
else
set -- $(gen_mac | convert_hex)
set -- $(printf %02x $(( (0x$1 & 0xfe) | 0x02 ))) $2 $3 $4 $5 $6
fi
echo "New MAC address: $1:$2:$3:$4:$5:$6"
ask_bool "Write to EEPROM (y/N)?" || exit
part=$(find_mtd_part "$partname")
[ -n "$part" ] || exit
echo -ne "\x$1\x$2\x$3\x$4\x$5\x$6" | dd of=$part conv=notrunc bs=1 count=6 seek=$offset 2>/dev/null
echo "Done"