From 441b4f8c25a7f8c3166686716cdfb0f49f2ff14e Mon Sep 17 00:00:00 2001
From: Martin Kepplinger <martin.kepplinger@puri.sm>
Date: Thu, 28 Nov 2019 14:15:24 +0100
Subject: [PATCH] x230: add extract.sh for Heads

This is what could go to blobs/x230/ in Heads.
---
 x230/x230_heads_extract_blobs.sh | 127 +++++++++++++++++++++++++++++++
 1 file changed, 127 insertions(+)
 create mode 100755 x230/x230_heads_extract_blobs.sh

diff --git a/x230/x230_heads_extract_blobs.sh b/x230/x230_heads_extract_blobs.sh
new file mode 100755
index 0000000..65d2704
--- /dev/null
+++ b/x230/x230_heads_extract_blobs.sh
@@ -0,0 +1,127 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2019, Martin Kepplinger <martink@posteo.de>
+
+set -e
+
+cd "$(dirname "$0")"
+
+IFDTOOL=./util/ifdtool/ifdtool
+ME_CLEANER=./util/me_cleaner/me_cleaner.py
+have_input_image=0
+
+usage()
+{
+	echo "EXPERIMENTAL"
+	echo ""
+	echo "This generates files for building Heads from your original 12M backup:"
+	echo "  (cat bottom.bin top.bin > full_backup_image.rom)"
+	echo "  ifd/me will be shrinked by me_cleaner and unlocked"
+	echo ""
+	echo "  http://osresearch.net"
+	echo ""
+	echo "Usage: $0 -f <full_backup_image>.rom -i <ifdtool>(optional) -m <me_cleaner.py(optional)"
+}
+
+args=$(getopt -o f:m:i:h -- "$@")
+if [ $? -ne 0 ] ; then
+	usage
+	exit 1
+fi
+
+eval set -- "$args"
+while [ $# -gt 0 ]
+do
+	case "$1" in
+	-f)
+		INPUT_IMAGE_PATH=$2
+		have_input_image=1
+		shift
+		;;
+	-m)
+		ME_CLEANER=$2
+		shift
+		;;
+	-i)
+		IFDTOOL=$2
+		shift
+		;;
+	-h)
+		usage
+		exit 1
+		;;
+	--)
+		shift
+		break
+		;;
+	*)
+		echo "Invalid option: $1"
+		exit 1
+		;;
+	esac
+	shift
+done
+
+if [ ! "$have_input_image" -gt 0 ] ; then
+	echo "No image file specified. Please add -f <file>"
+	echo ""
+	usage
+	exit 1
+fi
+
+if [ ! -e ${IFDTOOL} ] ; then
+	if [ ! -d util/ifdtool ] ; then
+		echo "Please specify -i <ifdtool>"
+		exit 1
+	fi
+	make -C util/ifdtool
+	if [ ! -e ${IFDTOOL} ] ; then
+		echo "Failed to build ifdtool"
+		exit 1
+	fi
+fi
+if [ ! -e ${ME_CLEANER} ] ; then
+	mkdir -p util/me_cleaner
+	curl -L https://raw.githubusercontent.com/corna/me_cleaner/v1.2/me_cleaner.py -o util/me_cleaner/me_cleaner.py
+	if [ ! -e ${ME_CLEANER} ] ; then
+		echo "Failed to download me_cleaner"
+		exit 1
+	fi
+fi
+
+OUTPUT_PATH=output
+INPUT_IMAGE_NAME=$(basename "${INPUT_IMAGE_PATH}")
+WORK_IMAGE_NAME=${INPUT_IMAGE_NAME%%.*}_prepared.rom
+
+input_filesize=$(wc -c <"$INPUT_IMAGE_PATH")
+reference_filesize=12582912
+if [ ! "$input_filesize" -eq "$reference_filesize" ] ; then
+	echo "Error: input file must be 12MB of size"
+	exit 1
+fi
+
+rm -rf ${OUTPUT_PATH}
+mkdir ${OUTPUT_PATH}
+cp "${INPUT_IMAGE_PATH}" "${OUTPUT_PATH}/${WORK_IMAGE_NAME}"
+
+${IFDTOOL} -x "${OUTPUT_PATH}/${WORK_IMAGE_NAME}"
+mv flashregion*bin "${OUTPUT_PATH}/"
+cp "${OUTPUT_PATH}/flashregion_3_gbe.bin" "${OUTPUT_PATH}/gbe.bin"
+rm ${OUTPUT_PATH}/flashregion*bin
+
+python ${ME_CLEANER} -r -t -d -S -O "${OUTPUT_PATH}/unneeded_cleaned_image.bin" -D "${OUTPUT_PATH}/ifd_shrinked.bin" -M "${OUTPUT_PATH}/me.bin" "${OUTPUT_PATH}/${WORK_IMAGE_NAME}"
+rm "${OUTPUT_PATH}/unneeded_cleaned_image.bin"
+
+${IFDTOOL} -u "${OUTPUT_PATH}/ifd_shrinked.bin"
+mv "${OUTPUT_PATH}/ifd_shrinked.bin.new" "${OUTPUT_PATH}/descriptor.bin"
+rm "${OUTPUT_PATH}/ifd_shrinked.bin"
+
+rm "${OUTPUT_PATH}/${WORK_IMAGE_NAME}"
+
+echo "done. this is what a layout file should look like:"
+echo "0x00000000:0x00000fff ifd"
+echo "0x00001000:0x00002fff gbe"
+echo "0x00003000:0x0001afff me"
+echo "0x0001b000:0x00bfffff bios"
+
+mv ${OUTPUT_PATH}/* . && rm -rf ${OUTPUT_PATH}