579 lines
13 KiB
Bash
Executable File
579 lines
13 KiB
Bash
Executable File
#!/usr/bin/env sh
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# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>
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# SPDX-FileCopyrightText: 2022 Ferass El Hafidi <vitali64pmemail@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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agent="Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0"
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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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dl_path=""
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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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sch5545ec_dl_url=""
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sch5545ec_dl_url_bkup=""
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sch5545ec_dl_hash=""
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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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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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pfs_extract="$(pwd)/biosutilities/Dell_PFS_Extract.py"
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uefiextract="$(pwd)/uefitool/uefiextract"
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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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CONFIG_INCLUDE_SMSC_SCH5545_EC_FW=""
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CONFIG_SMSC_SCH5545_EC_FW_FILE=""
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main()
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{
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board="${1}"
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boarddir="${cbcfgsdir}/${board}"
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[ ! -d "${boarddir}" ] && \
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fail "Board target, ${board}, not defined"
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[ ! -f "${boarddir}/target.cfg" ] && \
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fail "Target missing target.cfg"
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no_config="printf \"No config for target, %s\\n\" ${board} 1>&2; exit 0"
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for x in "${boarddir}"/config/*; do
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if [ -f "${x}" ]; then
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no_config=""
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fi
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done
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eval "${no_config}"
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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}/target.cfg"
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if [ "${CONFIG_HAVE_MRC}" = "y" ]; then
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needs="${needs} MRC"
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fi
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if [ "${CONFIG_HAVE_IFD_BIN}" = "y" ]; then
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needs="${needs} IFD"
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fi
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if [ "${CONFIG_HAVE_ME_BIN}" = "y" ]; then
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needs="${needs} ME"
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fi
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if [ "${CONFIG_HAVE_GBE_BIN}" = "y" ]; then
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needs="${needs} GBE"
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fi
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if [ "${CONFIG_KBC1126_FIRMWARE}" = "y" ]; then
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needs="${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="${needs} E6400VGA"
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fi
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if [ "${CONFIG_INCLUDE_SMSC_SCH5545_EC_FW}" = "y" ]; then
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needs="${needs} SCH5545EC"
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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':\n" ${board}
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printf "%s\n" ${needs}
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}
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scan_sources_config()
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{
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# Shorthand (avoid duplicating configs per flash size)
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_b=${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_bkup*)
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set ${line}
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ec_url_bkup=${2}
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;;
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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_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_bkup*)
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set ${line}
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dl_url_bkup=${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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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_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_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_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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SCH5545EC_DL_hash*)
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set ${line}
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sch5545ec_dl_hash=${2}
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;;
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SCH5545EC_DL_url_bkup*)
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set ${line}
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sch5545ec_dl_url_bkup=${2}
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;;
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SCH5545EC_DL_url*)
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set ${line}
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sch5545ec_dl_url=${2}
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;;
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esac
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done << EOF
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$(eval "awk '${awkstr}' resources/blobs/sources")
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EOF
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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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./fetch 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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./fetch_trees 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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./fetch bios_extract \
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|| fail "could not download bios_extract"
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fi
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if [ ! -d biosutilities ]; then
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printf "downloading biosutilities\n"
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./fetch biosutilities \
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|| fail "could not download biosutilities"
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fi
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if [ ! -d uefitool ]; then
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printf "download uefitool (for UEFIExtract)\n"
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./fetch uefitool \
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|| fail "could not download uefitool"
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fi
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if [ ! -f uefitool/uefiextract ]; then
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./build src for -b uefitool \
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|| fail "could not build uefitool"
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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 ${need} in
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*ME*)
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download_blob_intel_me || _failed="${_failed} me"
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;;
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*SCH5545EC*)
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download_sch5545ec || failed="${_failed} sch5545ec"
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;;
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*EC*)
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download_ec || _failed="${_failed} ec"
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;;
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*E6400VGA*)
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download_e6400vga || _failed="${_failed} e6400vga"
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;;
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*MRC*)
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./update blobs mrc || _failed="${_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 ${appdir} \
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|| 7z x ${dl_path} -o${appdir} \
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|| unar "${dl_path}" -o "${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${_7ztest} \
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|| innoextract "${i}" -d "${_7ztest}" \
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|| unar "${i}" -o "${_7ztest}" \
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|| continue
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bruteforce_extract_blob_intel_me "${_me_destination}" \
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"${cdir}/${_7ztest}"
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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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else
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printf "SKIPPING: %s\n" "${i}"
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continue
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fi
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cdir="${1}"
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cd "${cdir}"
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done
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)
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rm -Rf "${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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unar -D Rom.CAB Rom.bin || \
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unar -D 68*.CAB Rom.bin
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mv Rom.bin ec.bin
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fi
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if [ ! -f ec.bin ]; then
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printf "could not extract ec.bin for board '%s'" ${board} \
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1>&2
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fail "aborting the build. please audit lbmk carefully."
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fi
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"${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" "${_vga_destination}"
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}
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|
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download_sch5545ec()
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{
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printf "Downloading SMSC SCH5545 Environment Controller firmware\n"
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|
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fetch_update sch5545ec || return 1
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extract_sch5545ec || return 1
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}
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|
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# TODO: this code is cancer. hardcoded is bad, and stupid.
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# TODO: make it *scan* (based on signature, in each file)
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extract_sch5545ec()
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{
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printf "Extracting SCH5545 Environment Controller firmware for '%s'\n" \
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${board}
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_sch5545ec_destination=${CONFIG_SMSC_SCH5545_EC_FW_FILE#../../}
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|
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if [ -f "${_sch5545ec_destination}" ]; then
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printf 'sch5545 firmware already downloaded\n'
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return 0
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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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mkdir -p "${appdir}/"
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cp "${dl_path}" "${appdir}/"
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python "${pfs_extract}" "${appdir}/${dlsum}" -e || exit 1
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|
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# full system ROM (UEFI), to extract with UEFIExtract:
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_bios="${appdir}/${dlsum}_extracted/Firmware"
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_bios="${_bios}/1 ${dlsum} -- 1 System BIOS vA.28.bin"
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|
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# this is the SCH5545 firmware, inside of the extracted UEFI ROM:
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_sch5545ec_fw="${_bios}.dump/4 7A9354D9-0468-444A-81CE-0BF617D890DF"
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_sch5545ec_fw="${_sch5545ec_fw}/54 D386BEB8-4B54-4E69-94F5-06091F67E0D3"
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_sch5545ec_fw="${_sch5545ec_fw}/0 Raw section/body.bin" # <-- this!
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|
|
# this makes the file defined by _sch5545ec_fw available to copy
|
|
"${uefiextract}" "${_bios}" || exit 1
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|
|
cp "${_sch5545ec_fw}" "${_sch5545ec_destination}" || exit 1
|
|
}
|
|
|
|
fetch_update()
|
|
{
|
|
printf "Fetching vendor update for board: %s\n" ${board}
|
|
|
|
fw_type="${1}"
|
|
dl=""
|
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dl_bkup=""
|
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dlsum=""
|
|
if [ "${fw_type}" = "me" ]; then
|
|
dl=${dl_url}
|
|
dl_bkup=${dl_url_bkup}
|
|
dlsum=${dl_hash}
|
|
elif [ "${fw_type}" = "ec" ]; then
|
|
dl=${ec_url}
|
|
dl_bkup=${ec_url_bkup}
|
|
dlsum=${ec_hash}
|
|
elif [ "${fw_type}" = "e6400vga" ]; then
|
|
dl=${e6400_vga_dl_url}
|
|
dl_bkup=${e6400_vga_dl_url_bkup}
|
|
dlsum=${e6400_vga_dl_hash}
|
|
elif [ "${fw_type}" = "sch5545ec" ]; then
|
|
dl="${sch5545ec_dl_url}"
|
|
dl_bkup="${sch5545ec_dl_url_bkup}"
|
|
dlsum="${sch5545ec_dl_hash}"
|
|
else
|
|
printf "Unsupported download type: %s\n" ${fw_type}
|
|
return 1
|
|
fi
|
|
|
|
if [ -z "${dl_url+x}" ] && [ "${fw_type}" != "e6400vga" ]; then
|
|
printf "No vendor update specified for board: %s\n" ${board}
|
|
return 1
|
|
fi
|
|
|
|
dl_path=${blobdir}/cache/${dlsum}
|
|
mkdir -p ${blobdir}/cache
|
|
|
|
dl_fail="y"
|
|
vendor_checksum ${dlsum} && dl_fail="n"
|
|
for x in "${dl}" "${dl_bkup}"; do
|
|
if [ "${dl_fail}" = "n" ]; then
|
|
break
|
|
fi
|
|
rm -f "${dl_path}"
|
|
wget -U "${agent}" ${x} -O ${dl_path}
|
|
vendor_checksum ${dlsum} && dl_fail="n"
|
|
done
|
|
if [ "${dl_fail}" = "y" ]; then
|
|
printf "Could not download blob file\n" 1>&2
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
vendor_checksum()
|
|
{
|
|
if [ ! -f "${dl_path}" ]; then
|
|
printf "Vendor update not found on disk for: %s\n" ${board}
|
|
return 1
|
|
elif [ "$(sha1sum ${dl_path} | awk '{print $1}')" != "${1}" ]; then
|
|
printf "Bad checksum on vendor update for: %s\n" ${board}
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
fail()
|
|
{
|
|
printf "\nERROR: $@\n"
|
|
exit 1
|
|
}
|
|
|
|
main $@
|