123 lines
3.1 KiB
Bash
Executable File
123 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env sh
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# script to automate extracting blobs from an existing vendor bios
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# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>
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# SPDX-FileCopyrightText: 2023 Leah Rowe <leah@libreboot.org>
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# SPDX-License-Identifier: GPL-3.0-only
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. "include/err.sh"
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sname=""
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board=""
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vendor_rom=""
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cbdir="coreboot/default"
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cbcfgsdir="config/coreboot"
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ifdtool="${cbdir}/util/ifdtool/ifdtool"
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mecleaner="me_cleaner/me_cleaner.py"
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me7updateparser="util/me7_update_parser/me7_update_parser.py"
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boarddir=""
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CONFIG_HAVE_MRC=""
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CONFIG_ME_BIN_PATH=""
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CONFIG_GBE_BIN_PATH=""
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CONFIG_IFD_BIN_PATH=""
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_me_destination=""
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_gbe_destination=""
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_ifd_destination=""
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main()
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{
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sname=${0}
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[ $# -lt 2 ] && err "Missing arguments (fewer than two)."
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board="${1}"
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vendor_rom="${2}"
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boarddir="${cbcfgsdir}/${board}"
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check_board
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build_dependencies
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extract_blobs
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}
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check_board()
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{
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if [ ! -f "${vendor_rom}" ]; then
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err "check_board: ${board}: file does not exist: ${vendor_rom}"
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elif [ ! -d "${boarddir}" ]; then
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err "check_board: ${board}: target not defined"
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elif [ ! -f "${boarddir}/target.cfg" ]; then
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err "check_board: ${board}: missing target.cfg"
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fi
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}
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build_dependencies()
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{
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if [ ! -d me_cleaner ]; then
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./update project repo me_cleaner || \
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err "build_dependencies: can't fetch me_cleaner"
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elif [ ! -d "${cbdir}" ]; then
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./update project trees coreboot default || \
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err "build_dependencies: can't fetch coreboot"
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elif [ ! -f "${ifdtool}" ]; then
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make -C "${ifdtool%/ifdtool}" || \
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err "build_dependencies: can't build ifdtool"
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fi
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}
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extract_blobs()
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{
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printf "extracting blobs for %s from %s\n" ${board} ${vendor_rom}
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set -- "${boarddir}/config/"*
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. "${1}" 2>/dev/null
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. "${boarddir}/target.cfg"
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[ "$CONFIG_HAVE_MRC" != "y" ] || \
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./update blobs mrc || err "extract_blobs: can't fetch mrc"
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_me_destination=${CONFIG_ME_BIN_PATH#../../}
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_gbe_destination=${CONFIG_GBE_BIN_PATH#../../}
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_ifd_destination=${CONFIG_IFD_BIN_PATH#../../}
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extract_blob_intel_me
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extract_blob_intel_gbe_nvm
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# Cleans up other files extracted with ifdtool
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rm -f flashregion*.bin || err "extract_blobs: !rm -f flashregion*.bin"
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[ -f "${_ifd_destination}" ] || err "extract_blobs: Cannot extract IFD"
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printf "gbe, ifd, and me extracted to %s\n" "${_me_destination%/*}"
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}
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extract_blob_intel_me()
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{
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printf "extracting clean ime and modified ifd\n"
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"${mecleaner}" -D "${_ifd_destination}" \
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-M "${_me_destination}" "${vendor_rom}" -t -r -S || \
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"${me7updateparser}" \
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-O "${_me_destination}" "${vendor_rom}" || \
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err "extract_blob_intel_me: cannot extract from vendor rom"
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}
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extract_blob_intel_gbe_nvm()
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{
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printf "extracting gigabit ethernet firmware"
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./"${ifdtool}" -x "${vendor_rom}" || \
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err "extract_blob_intel_gbe_nvm: cannot extract gbe.bin from rom"
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mv flashregion*gbe.bin "${_gbe_destination}" || \
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err "extract_blob_intel_gbe_nvm: cannot move gbe.bin"
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}
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print_help()
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{
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printf "Usage: ./update blobs extract {boardname} {path/to/vendor_rom}\n"
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printf "Example: ./update blobs extract x230 12mb_flash.bin\n"
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printf "\nYou need to specify exactly 2 arguments\n"
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}
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main $@
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