456 lines
9.6 KiB
Bash
Executable File
456 lines
9.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>
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# SPDX-FileCopyrightText: 2023 Leah Rowe <info@minifree.org>
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# SPDX-License-Identifier: GPL-3.0-only
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ec_url=""
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ec_url_bkup=""
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ec_hash=""
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dl_hash=""
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dl_url=""
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dl_url_bkup=""
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e6400_vga_dl_hash=""
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e6400_vga_dl_url=""
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e6400_vga_dl_url_bkup=""
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e6400_vga_offset=""
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e6400_vga_romname=""
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cbdir="coreboot/default"
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cbcfgsdir="resources/coreboot"
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boarddir=""
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blobdir="blobs"
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dl_path="${blobdir}/vendorupdate"
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appdir="${blobdir}/app"
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_7ztest="a"
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mecleaner="$(pwd)/me_cleaner/me_cleaner.py"
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e6400_unpack="$(pwd)/bios_extract/dell_inspiron_1100_unpacker.py"
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me7updateparser="$(pwd)/resources/blobs/me7_update_parser.py"
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kbc1126_ec_dump="$(pwd)/${cbdir}/util/kbc1126/kbc1126_ec_dump"
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board=""
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_b="" # board shorthand without e.g. _4mb (avoid duplication per flash size)
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CONFIG_HAVE_MRC=""
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CONFIG_HAVE_IFD_BIN=""
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CONFIG_HAVE_ME_BIN=""
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CONFIG_HAVE_GBE_BIN=""
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CONFIG_KBC1126_FIRMWARE=""
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CONFIG_BOARD_DELL_E6400=""
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CONFIG_VGA_BIOS_FILE=""
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main()
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{
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board="${1}"
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boarddir="${cbcfgsdir}/${board}"
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if [ ! -d "${boarddir}" ]; then
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fail "Target not defined"
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elif [ ! -f "${boarddir}/board.cfg" ]; then
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fail "Target missing board.cfg"
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fi
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detect_firmware || exit 0
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scan_sources_config
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build_dependencies
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download_blobs
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}
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detect_firmware()
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{
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set -- "${boarddir}/config/"*
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. ${1} 2>/dev/null
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. "${boarddir}/board.cfg"
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if [ "${CONFIG_HAVE_MRC}" = "y" ]; then
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needs+=" MRC"
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fi
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if [ "${CONFIG_HAVE_IFD_BIN}" = "y" ]; then
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needs+=" IFD"
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fi
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if [ "${CONFIG_HAVE_ME_BIN}" = "y" ]; then
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needs+=" ME"
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fi
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if [ "${CONFIG_HAVE_GBE_BIN}" = "y" ]; then
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needs+=" GBE"
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fi
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if [ "${CONFIG_KBC1126_FIRMWARE}" = "y" ]; then
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needs+=" EC"
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fi
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if [ "${CONFIG_BOARD_DELL_E6400}" = "y" ] \
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&& [ "${CONFIG_VGA_BIOS_FILE}" != "" ]; then
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needs+=" E6400VGA"
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fi
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if [ -z ${needs+x} ]; then
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printf 'No binary blobs needed for this board\n'
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return 1
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fi
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printf "Firmware needed for board %s: %s\n" ${board} ${needs}
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}
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scan_sources_config()
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{
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# Shorthand (avoid duplicating configs per flash size)
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_b=${board%%_*mb}
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awkstr=" /\{.*${_b}.*}{/ {flag=1;next} /\}/{flag=0} flag { print }"
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while read -r line ; do
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case ${line} in
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EC_url*)
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set ${line}
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ec_url=${2}
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;;
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EC_url_bkup*)
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set ${line}
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ec_url_bkup=${2}
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;;
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EC_hash*)
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set ${line}
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ec_hash=${2}
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;;
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DL_hash*)
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set ${line}
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dl_hash=${2}
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;;
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DL_url*)
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set ${line}
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dl_url=${2}
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;;
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DL_url_bkup*)
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set ${line}
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dl_url_bkup=${2}
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;;
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E6400_VGA_DL_hash*)
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set ${line}
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e6400_vga_dl_hash=${2}
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;;
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E6400_VGA_DL_url*)
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set ${line}
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e6400_vga_dl_url=${2}
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;;
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E6400_VGA_DL_url_bkup*)
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set ${line}
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e6400_vga_dl_url_bkup=${2}
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;;
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E6400_VGA_offset*)
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set ${line}
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e6400_vga_offset=${2}
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;;
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E6400_VGA_romname*)
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set ${line}
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e6400_vga_romname=${2}
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;;
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esac
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done <<< $(eval "awk '${awkstr}' resources/blobs/sources")
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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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printf "downloading me_cleaner\n"
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./download me_cleaner || fail "could not download me_cleaner"
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fi
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if [ ! -d ${cbdir} ]; then
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printf "downloading coreboot\n"
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./download coreboot default \
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|| fail "could not download coreboot"
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fi
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if [ ! -d bios_extract ]; then
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printf "downloading bios_extract\n"
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./download bios_extract \
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|| fail "could not download bios_extract"
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fi
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if [ ! -f ${cbdir}/util/kbc1126/kbc1126_ec_dump ]; then
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printf "Building kbc1126_ec_dump from coreboot\n"
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make -BC ${cbdir}/util/kbc1126 \
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|| fail "could not build kbc1126_ec_dump"
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fi
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if [ ! -f "${cbdir}/util/ifdtool/ifdtool" ]; then
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printf "building ifdtool from coreboot\n"
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make -C ${cbdir}/util/ifdtool \
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|| fail 'could not build ifdtool'
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fi
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}
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download_blobs()
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{
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for need in ${needs}; do
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case ${need} in
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*ME*)
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download_blob_intel_me || _failed+=" me"
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;;
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*EC*)
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download_ec || _failed+=" ec"
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;;
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*E6400VGA*)
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download_e6400vga || _failed+=" e6400vga"
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;;
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*MRC*)
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./download mrc || _failed+=" mrc"
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;;
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esac
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done
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if [ ! -z ${_failed+x} ]; then
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fail "failed to obtain ${_failed}\nTry manual extraction?"
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fi
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}
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download_blob_intel_me()
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{
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printf "Downloading neutered ME for board: %s\n" ${board}
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fetch_update me || return 1
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extract_blob_intel_me || return 1
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}
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extract_blob_intel_me()
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{
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printf "Extracting neutered ME for ${board}\n"
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_me_destination=${CONFIG_ME_BIN_PATH#../../}
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if [ ! -d "${_me_destination%/*}" ]; then
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mkdir -p ${_me_destination%/*}
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fi
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if [ -d "${appdir}" ]; then
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rm -r ${appdir}
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fi
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if [ -f "${_me_destination}" ]; then
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printf 'me already downloaded\n'
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return 0
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fi
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printf "Extracting and stripping Intel ME firmware\n"
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innoextract ${dl_path} -d ${blobdir} \
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|| 7z x ${dl_path} -o${appdir} \
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|| fail 'Could not extract vendor update'
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bruteforce_extract_blob_intel_me "$(pwd)/${_me_destination}" \
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"$(pwd)/${appdir}" \
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|| fail "Could not extract Intel ME firmware"
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printf "Truncated and cleaned me output to ${_me_destination}\n"
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}
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# cursed, carcinogenic code. TODO rewrite it better
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bruteforce_extract_blob_intel_me()
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{
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_me_destination="${1}"
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cdir="${2}" # must be an absolute path, not relative
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if [ -f "${_me_destination}" ]; then
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return 0
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fi
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sdir="$(mktemp -d)"
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mkdir -p "${sdir}" || return 1
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(
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printf "Entering %s\n" "${cdir}"
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cd "${cdir}" || exit 1
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for i in *; do
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if [ -f "${_me_destination}" ]; then
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# me.bin found, so avoid needless further traversal
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break
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elif [ -L "${i}" ]; then
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# symlinks are a security risk, in this context
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continue
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elif [ -f "${i}" ]; then
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"${mecleaner}" -r -t -O "${sdir}/vendorfile" \
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-M "${_me_destination}" "${i}" \
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&& break # (we found me.bin)
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"${mecleaner}" -r -t -O "${_me_destination}" "${i}" \
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&& break # (we found me.bin)
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"${me7updateparser}" -O ${_me_destination} "${i}" \
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&& break # (we found me.bin)
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_7ztest="${_7ztest}a"
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7z x "${i}" -o${_7ztest} || continue
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bruteforce_extract_blob_intel_me "${_me_destination}" \
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"${cdir}/${_7ztest}"
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cdir="${1}"
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cd "${cdir}"
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elif [ -d "$i" ]; then
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bruteforce_extract_blob_intel_me "${_me_destination}" \
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"${cdir}/${i}"
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cdir="${1}"
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cd "${cdir}"
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else
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printf "SKIPPING: %s\n" "${i}"
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fi
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done
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)
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rm -Rf "${sdir}"
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if [ ! -f "${_me_destination}" ]; then
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printf "me.bin not found in vendor update for: %s\n" ${board}
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return 1
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fi
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}
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download_ec()
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{
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printf "Downloading KBC1126 EC firmware for HP laptop\n"
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fetch_update ec || return 1
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extract_ec || return 1
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}
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extract_ec()
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{
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printf "Extracting KBC1126 EC firmware for board: %s\n" ${board}
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_ec_destination=${CONFIG_KBC1126_FW1#../../}
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if [ ! -d "${_ec_destination%/*}" ]; then
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mkdir -p "${_ec_destination%/*}"
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fi
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if [ -d "${appdir}" ]; then
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rm -Rf "${appdir}"
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fi
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if [ -f "${_ec_destination}" ]; then
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printf "ec already downloaded\n"
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return 0
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fi
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unar "${dl_path}" -o "${appdir}"
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(
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cd "${appdir}/${dl_path##*/}"
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mv Rompaq/68*.BIN ec.bin
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if [ ! -f ec.bin ]; then
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unar -D ROM.CAB Rom.bin
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mv Rom.bin ec.bin
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fi
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"${kbc1126_ec_dump}" ec.bin
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)
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for i in 1 2; do
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if [ -f "${appdir}/${dl_path##*/}/ec.bin.fw${i}" ]; then
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continue
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fi
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printf "Not found: %s/%s/ec.bin.fw%s\n" \
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${appdir} ${dl_path##*/} ${i}
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printf "Could not extract EC firmware for: %s\n" \
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${board}
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return 1
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done
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cp "${appdir}/${dl_path##*/}"/ec.bin.fw* "${_ec_destination%/*}/"
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}
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download_e6400vga()
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{
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printf "Downloading Nvidia VGA ROM for Dell Latitude E6400\n"
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fetch_update e6400vga || return 1
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extract_e6400vga || return 1
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}
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extract_e6400vga()
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{
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printf "Extracting Nvidia VGA ROM for ${board}\n"
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_vga_destination=${CONFIG_VGA_BIOS_FILE#../../}
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if [ -f "${_vga_destination}" ]; then
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printf 'vga rom already downloaded\n'
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return 0
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fi
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if [ ! -d "${_vga_destination%/*}" ]; then
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mkdir -p ${_vga_destination%/*}
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fi
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if [ -d "${appdir}" ]; then
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rm -r ${appdir}
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fi
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mkdir -p "${appdir}"
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mv "${dl_path}" "${appdir}"
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if [ "${e6400_vga_offset}" = "" ]; then
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printf "E6400 VGA offset not defined\n"
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return 1
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elif [ "${e6400_vga_romname}" = "" ]; then
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printf "E6400 VGA ROM name not defined\n"
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return 1
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fi
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(
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cd "${appdir}"
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tail -c +${e6400_vga_offset} "${dl_path##*/}" \
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| gunzip > bios.bin
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if [ ! -f "bios.bin" ]; then
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fail 'Could not extract bios.bin from Dell E6400 update'
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fi
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"${e6400_unpack}" bios.bin || printf "TODO: fix dell extract util\n"
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if [ ! -f "${e6400_vga_romname}" ]; then
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fail 'Could not extract VGA ROM from Dell E6400 BIOS update'
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fi
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)
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cp "${appdir}"/"${e6400_vga_romname}" "${_vga_destination}"
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printf "E6400 Nvidia ROM saved to: %s\n" "${_vga_destination}"
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}
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fetch_update()
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{
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printf "Fetching vendor update for board: %s\n" ${board}
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fw_type="${1}"
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dl=""
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dl_bkup=""
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dlsum=""
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if [ "${fw_type}" = "me" ]; then
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dl=${dl_url}
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dl_bkup=${dl_url_bkup}
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dlsum=${dl_hash}
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elif [ "${fw_type}" = "ec" ]; then
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dl=${ec_url}
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dl_bkup=${ec_url_bkup}
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dlsum=${ec_hash}
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elif [ "${fw_type}" = "e6400vga" ]; then
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dl=${e6400_vga_dl_url}
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dl_bkup=${e6400_vga_dl_url_bkup}
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dlsum=${e6400_vga_dl_hash}
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else
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printf "Unsupported download type: %s\n" ${fw_type}
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return 1
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fi
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if [ -z "${dl_url+x}" ] && [ "${fw_type}" != "e6400vga" ]; then
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printf "No vendor update specified for board: %s\n" ${board}
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return 1
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fi
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vendor_checksum ${dlsum} || \
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wget ${dl} -O ${dl_path} || wget ${dl_bkup} -O ${dl_path}
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vendor_checksum ${dlsum} || fail \
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"Cannot guarantee intergity of vendor update for: ${board}"
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}
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vendor_checksum()
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{
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if [ ! -f "${dl_path}" ]; then
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printf "Vendor update not found on disk for: %s\n" ${board}
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return 1
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elif [ "$(sha1sum ${dl_path} | awk '{print $1}')" != "${1}" ]; then
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printf "Bad checksum on vendor update for: %s\n" ${board}
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return 1
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fi
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}
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fail()
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{
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printf "\nERROR: $@\n"
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exit 1
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}
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main $@
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