You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
1.8 KiB
Bash
68 lines
1.8 KiB
Bash
#!/bin/sh
|
|
#
|
|
# Copyright (C) 2018 Oceanic Systems (UK) Ltd
|
|
#
|
|
# This is free software, licensed under the GNU General Public License v2.
|
|
# See /LICENSE for more information.
|
|
#
|
|
# Maintained by: Ryan Pannell <ryan [at] o s u k l .com> <github.com/Escalion>
|
|
#
|
|
# Write Linksys signature for factory image
|
|
# This is appended to the factory image and is tested by the Linksys Upgrader - as observed in civic.
|
|
# The footer is 256 bytes. The format is:
|
|
# .LINKSYS. This is detected by the Linksys upgrader before continuing with upgrade. (9 bytes)
|
|
# <VERSION> The version number of upgrade. Not checked so use arbitary value (8 bytes)
|
|
# <TYPE> Model of target device, padded (0x20) to (15 bytes)
|
|
# <CRC> CRC checksum of the image to flash (8 byte)
|
|
# <padding> Padding (0x20) (7 bytes)
|
|
# <signature> Signature of signer. Not checked so use Arbitary value (16 bytes)
|
|
# <padding> Padding (0x00) (192 bytes)
|
|
# 0x0A (1 byte)
|
|
|
|
## version history
|
|
# * version 1: initial commit
|
|
|
|
set -e
|
|
|
|
ME="${0##*/}"
|
|
|
|
usage() {
|
|
echo "Usage: $ME <type> <in filename>"
|
|
[ "$IMG_OUT" ] && rm -f "$IMG_OUT"
|
|
exit 1
|
|
}
|
|
|
|
[ "$#" -lt 3 ] && usage
|
|
|
|
TYPE=$1
|
|
|
|
tmpdir="$( mktemp -d 2> /dev/null )"
|
|
if [ -z "$tmpdir" ]; then
|
|
# try OSX signature
|
|
tmpdir="$( mktemp -t 'ubitmp' -d )"
|
|
fi
|
|
|
|
if [ -z "$tmpdir" ]; then
|
|
exit 1
|
|
fi
|
|
|
|
trap "rm -rf $tmpdir" EXIT
|
|
|
|
IMG_TMP_OUT="${tmpdir}/out"
|
|
|
|
IMG_IN=$2
|
|
IMG_OUT="${IMG_IN}.new"
|
|
|
|
[ ! -f "$IMG_IN" ] && echo "$ME: Not a valid image: $IMG_IN" && usage
|
|
|
|
dd if="${IMG_IN}" of="${IMG_TMP_OUT}"
|
|
CRC=$(printf "%08X" $(dd if="${IMG_IN}" bs=$(stat -c%s "${IMG_IN}") count=1|cksum| cut -d ' ' -f1))
|
|
|
|
printf ".LINKSYS.01000409%-15s%-8s%-7s%-16s" "${TYPE}" "${CRC}" "" "K0000000F0246434" >> "${IMG_TMP_OUT}"
|
|
|
|
dd if=/dev/zero bs=1 count=192 conv=notrunc >> "${IMG_TMP_OUT}"
|
|
|
|
printf '\12' >> "${IMG_TMP_OUT}"
|
|
|
|
cp "${IMG_TMP_OUT}" "${IMG_OUT}"
|