1 files changed, 89 insertions, 0 deletions
diff --git a/resources/scripts/blobs/extract b/resources/scripts/blobs/extract
new file mode 100755
index 0000000..cdb55cf
--- /dev/null
+++ b/resources/scripts/blobs/extract
@@ -0,0 +1,89 @@
+#!/usr/bin/env bash
+# script to automate extracting blobs from an existing vendor bios
+
+# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>
+# SPDX-License-Identifier: GPL-3.0-only
+
+board="${1}"
+vendor_rom="${2}"
+
+Print_help(){
+	printf "Usage: ./blobutil extract {boardname} {path/to/vendor_rom}\n"
+	printf "Example: ./blobutil extract x230 12mb_flash.bin\n"
+	printf "\nYou need to specify exactly 2 arguments\n"
+}
+
+Build_deps(){
+	if [ ! -d me_cleaner ]; then
+		printf "downloading me_cleaner\n"
+		./download me_cleaner
+	else
+		printf "me_cleaner already downloaded. Skipping.\n"
+		printf "run ./download me_cleaner to manually overwrite\n"
+	fi
+
+	if [ ! -d coreboot/default ]; then
+		printf "downloading coreboot\n"
+		./download coreboot default
+	else
+		printf "coreboot already downloaded. Skipping.\n"
+		printf "run ./download coreboot to manually overwrite\n"
+	fi
+
+	printf "building ifdtool from coreboot\n"
+	( cd coreboot/default/util/ifdtool && make )
+}
+
+Error_out(){
+	printf "failed to extract ${1}\nmake sure that your rom dump is valid\n"
+	exit 1
+}
+
+
+Extract_blobs(){
+	# TODO: find a better way to know which coreboot config to source
+	set -- "resources/coreboot/${board}/config/*"
+	. ${1} 2>/dev/null
+	. "resources/coreboot/${board}/board.cfg"
+
+	if [ "$CONFIG_HAVE_MRC" = "y" ]; then
+		printf 'haswell board detected, downloading mrc\n'
+		./download mrc
+	fi
+
+	_me_destination=${CONFIG_ME_BIN_PATH#../../}
+	_gbe_destination=${CONFIG_GBE_BIN_PATH#../../}
+	_ifd_destination=${CONFIG_IFD_BIN_PATH#../../}
+
+	printf "extracting clean ime and modified ifd\n"
+	./me_cleaner/me_cleaner.py -D ${_ifd_destination} -M ${_me_destination} ${vendor_rom} -t -r -S || Error_out me
+
+	printf "extracting gigabit ethernet firmware"
+	./coreboot/default/util/ifdtool/ifdtool -x ${vendor_rom}
+	mv flashregion*gbe.bin ${_gbe_destination} || Error_out gbe
+	
+	# Cleans up other files extracted with ifdtool
+	rm flashregion*.bin 2> /dev/null
+	printf "gbe, ifd, and me extracted to ${_me_destination%/*}\n"
+}
+
+if [ ! -f "${vendor_rom}" ] ; then
+	Print_help
+	exit 1
+fi
+
+if [ ! -d "resources/coreboot/${board}" ]; then
+	Print_help
+        printf "build/roms: Target %s does not exist in the %s build system. Skipping build.\n" "${projectname}" "${board}"
+        exit 1
+fi
+
+if [ ! -f "resources/coreboot/${board}/board.cfg" ]; then
+	Print_help
+        printf "build/roms: Target %s does not have a board.cfg. Skipping build.\n" "${board}"
+        exit 1
+fi
+
+printf "extracting blobs for ${board} from ${vendor_rom}\n"
+Build_deps
+Extract_blobs