Extract blobs from an Ivy Bridge Coreboot image

extract_blobs.sh

#!/usr/bin/env bash
#
# This file is part of the coreboot project.
#
# Copyright (C) 2016 Joe Pillow
# Copyright (C) 2019 archfan
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#

set -x

IMAGE=$1

if [ ! -r "$IMAGE" ]; then
  echo "Can't find image $IMAGE."
  exit 1
fi

CBFSTOOL=$(which cbfstool)
if [ $? != 0 ]; then
  echo "Can't find cbfstool."
  exit 1
fi

IFDTOOL=$(which ifdtool)
if [ $? != 0 ]; then
  echo "Can't find ifdtool."
  exit 1
fi

$CBFSTOOL $IMAGE print

if [ $? -ne 0 ]; then
  echo "Not a coreboot image: $IMAGE"
  exit 1
fi

PCI=$($CBFSTOOL $IMAGE print|grep pci|cut -f1 -d\ )

$CBFSTOOL $IMAGE extract -n $PCI -f $PCI
$IFDTOOL -x $IMAGE
mv flashregion_0_flashdescriptor.bin ifd.bin
mv flashregion_2_intel_me.bin me.bin
mv flashregion_3_gbe.bin gbe.bin
rm flashregion_*.bin