From 72cf4f2627a362f6e52a8f5bee563ebd147af2be Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 1 Jan 2016 18:57:39 +0000
Subject: ramips: add a script to fix up the broken mac address on the witi
board
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48027 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
.../linux/ramips/base-files/sbin/fixup-mac-address | 79 ++++++++++++++++++++++
1 file changed, 79 insertions(+)
create mode 100755 target/linux/ramips/base-files/sbin/fixup-mac-address
(limited to 'target/linux/ramips/base-files/sbin')
diff --git a/target/linux/ramips/base-files/sbin/fixup-mac-address b/target/linux/ramips/base-files/sbin/fixup-mac-address
new file mode 100755
index 0000000000..6e3bac4997
--- /dev/null
+++ b/target/linux/ramips/base-files/sbin/fixup-mac-address
@@ -0,0 +1,79 @@
+#!/bin/sh
+. /lib/functions.sh
+. /lib/functions/system.sh
+
+partname=""
+offset=""
+NEW_MAC=
+YES=
+
+case "$(cat /tmp/sysinfo/board_name)" in
+ witi)
+ partname=factory
+ offset=$((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"
--
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