lbmk/resources/scripts/blobs/download

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#!/usr/bin/env sh
# SPDX-FileCopyrightText: 2022 Caleb La Grange <thonkpeasant@protonmail.com>
# SPDX-FileCopyrightText: 2022 Ferass El Hafidi <vitali64pmemail@protonmail.com>
# SPDX-FileCopyrightText: 2023 Leah Rowe <info@minifree.org>
# SPDX-License-Identifier: GPL-3.0-only
ec_url=""
ec_url_bkup=""
ec_hash=""
dl_hash=""
dl_url=""
dl_url_bkup=""
e6400_vga_dl_hash=""
e6400_vga_dl_url=""
e6400_vga_dl_url_bkup=""
e6400_vga_offset=""
e6400_vga_romname=""
cbdir="coreboot/default"
cbcfgsdir="resources/coreboot"
boarddir=""
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blobdir="blobs"
dl_path="${blobdir}/vendorupdate"
appdir="${blobdir}/app"
_7ztest="a"
mecleaner="$(pwd)/me_cleaner/me_cleaner.py"
e6400_unpack="$(pwd)/bios_extract/dell_inspiron_1100_unpacker.py"
me7updateparser="$(pwd)/resources/blobs/me7_update_parser.py"
kbc1126_ec_dump="$(pwd)/${cbdir}/util/kbc1126/kbc1126_ec_dump"
board=""
_b="" # board shorthand without e.g. _4mb (avoid duplication per flash size)
CONFIG_HAVE_MRC=""
CONFIG_HAVE_IFD_BIN=""
CONFIG_HAVE_ME_BIN=""
CONFIG_HAVE_GBE_BIN=""
CONFIG_KBC1126_FIRMWARE=""
CONFIG_BOARD_DELL_E6400=""
CONFIG_VGA_BIOS_FILE=""
main()
{
board="${1}"
boarddir="${cbcfgsdir}/${board}"
if [ ! -d "${boarddir}" ]; then
fail "Target not defined"
elif [ ! -f "${boarddir}/board.cfg" ]; then
fail "Target missing board.cfg"
fi
detect_firmware || exit 0
scan_sources_config
build_dependencies
download_blobs
}
detect_firmware()
{
set -- "${boarddir}/config/"*
. ${1} 2>/dev/null
. "${boarddir}/board.cfg"
if [ "${CONFIG_HAVE_MRC}" = "y" ]; then
needs="${needs} MRC"
fi
if [ "${CONFIG_HAVE_IFD_BIN}" = "y" ]; then
needs="${needs} IFD"
fi
if [ "${CONFIG_HAVE_ME_BIN}" = "y" ]; then
needs="${needs} ME"
fi
if [ "${CONFIG_HAVE_GBE_BIN}" = "y" ]; then
needs="${needs} GBE"
fi
if [ "${CONFIG_KBC1126_FIRMWARE}" = "y" ]; then
needs="${needs} EC"
fi
if [ "${CONFIG_BOARD_DELL_E6400}" = "y" ] \
&& [ "${CONFIG_VGA_BIOS_FILE}" != "" ]; then
needs="${needs} E6400VGA"
fi
if [ -z ${needs+x} ]; then
printf 'No binary blobs needed for this board\n'
return 1
fi
printf "Firmware needed for board %s: %s\n" ${board} ${needs}
return 0
}
scan_sources_config()
{
# Shorthand (avoid duplicating configs per flash size)
_b=${board%%_*mb}
awkstr=" /\{.*${_b}.*}{/ {flag=1;next} /\}/{flag=0} flag { print }"
while read -r line ; do
case ${line} in
EC_url*)
set ${line}
ec_url=${2}
;;
EC_url_bkup*)
set ${line}
ec_url_bkup=${2}
;;
EC_hash*)
set ${line}
ec_hash=${2}
;;
DL_hash*)
set ${line}
dl_hash=${2}
;;
DL_url*)
set ${line}
dl_url=${2}
;;
DL_url_bkup*)
set ${line}
dl_url_bkup=${2}
;;
E6400_VGA_DL_hash*)
set ${line}
e6400_vga_dl_hash=${2}
;;
E6400_VGA_DL_url*)
set ${line}
e6400_vga_dl_url=${2}
;;
E6400_VGA_DL_url_bkup*)
set ${line}
e6400_vga_dl_url_bkup=${2}
;;
E6400_VGA_offset*)
set ${line}
e6400_vga_offset=${2}
;;
E6400_VGA_romname*)
set ${line}
e6400_vga_romname=${2}
;;
esac
done << EOF
$(eval "awk '${awkstr}' resources/blobs/sources")
EOF
}
build_dependencies()
{
if [ ! -d me_cleaner ]; then
printf "downloading me_cleaner\n"
./download me_cleaner || fail "could not download me_cleaner"
fi
if [ ! -d ${cbdir} ]; then
printf "downloading coreboot\n"
./download coreboot default \
|| fail "could not download coreboot"
fi
if [ ! -d bios_extract ]; then
printf "downloading bios_extract\n"
./download bios_extract \
|| fail "could not download bios_extract"
fi
if [ ! -f ${cbdir}/util/kbc1126/kbc1126_ec_dump ]; then
printf "Building kbc1126_ec_dump from coreboot\n"
make -BC ${cbdir}/util/kbc1126 \
|| fail "could not build kbc1126_ec_dump"
fi
if [ ! -f "${cbdir}/util/ifdtool/ifdtool" ]; then
printf "building ifdtool from coreboot\n"
make -C ${cbdir}/util/ifdtool \
|| fail 'could not build ifdtool'
fi
}
download_blobs()
{
for need in ${needs}; do
case ${need} in
*ME*)
download_blob_intel_me || _failed="${_failed} me"
;;
*EC*)
download_ec || _failed="${_failed} ec"
;;
*E6400VGA*)
download_e6400vga || _failed="${_failed} e6400vga"
;;
*MRC*)
./download mrc || _failed="${_failed} mrc"
;;
esac
done
if [ ! -z ${_failed+x} ]; then
fail "failed to obtain ${_failed}\nTry manual extraction?"
fi
}
download_blob_intel_me()
{
printf "Downloading neutered ME for board: %s\n" ${board}
fetch_update me || return 1
extract_blob_intel_me || return 1
return 0
}
extract_blob_intel_me()
{
printf "Extracting neutered ME for ${board}\n"
_me_destination=${CONFIG_ME_BIN_PATH#../../}
if [ ! -d "${_me_destination%/*}" ]; then
mkdir -p ${_me_destination%/*}
fi
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if [ -d "${appdir}" ]; then
rm -r ${appdir}
fi
if [ -f "${_me_destination}" ]; then
printf 'me already downloaded\n'
return 0
fi
printf "Extracting and stripping Intel ME firmware\n"
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innoextract ${dl_path} -d ${blobdir} \
|| 7z x ${dl_path} -o${appdir} \
|| fail 'Could not extract vendor update'
bruteforce_extract_blob_intel_me "$(pwd)/${_me_destination}" \
"$(pwd)/${appdir}" \
|| fail "Could not extract Intel ME firmware"
printf "Truncated and cleaned me output to ${_me_destination}\n"
return 0
}
# cursed, carcinogenic code. TODO rewrite it better
bruteforce_extract_blob_intel_me()
{
_me_destination="${1}"
cdir="${2}" # must be an absolute path, not relative
if [ -f "${_me_destination}" ]; then
return 0
fi
sdir="$(mktemp -d)"
mkdir -p "${sdir}" || return 1
(
printf "Entering %s\n" "${cdir}"
cd "${cdir}" || exit 1
for i in *; do
if [ -f "${_me_destination}" ]; then
# me.bin found, so avoid needless further traversal
break
elif [ -L "${i}" ]; then
# symlinks are a security risk, in this context
continue
elif [ -f "${i}" ]; then
"${mecleaner}" -r -t -O "${sdir}/vendorfile" \
-M "${_me_destination}" "${i}" \
&& break # (we found me.bin)
"${mecleaner}" -r -t -O "${_me_destination}" "${i}" \
&& break # (we found me.bin)
"${me7updateparser}" -O ${_me_destination} "${i}" \
&& break # (we found me.bin)
_7ztest="${_7ztest}a"
7z x "${i}" -o${_7ztest} || continue
bruteforce_extract_blob_intel_me "${_me_destination}" \
"${cdir}/${_7ztest}"
cdir="${1}"
cd "${cdir}"
elif [ -d "$i" ]; then
bruteforce_extract_blob_intel_me "${_me_destination}" \
"${cdir}/${i}"
cdir="${1}"
cd "${cdir}"
else
printf "SKIPPING: %s\n" "${i}"
fi
done
)
rm -Rf "${sdir}"
if [ ! -f "${_me_destination}" ]; then
printf "me.bin not found in vendor update for: %s\n" ${board}
return 1
else
return 0
fi
}
download_ec()
{
printf "Downloading KBC1126 EC firmware for HP laptop\n"
fetch_update ec || return 1
extract_ec || return 1
return 0
}
extract_ec()
{
printf "Extracting KBC1126 EC firmware for board: %s\n" ${board}
_ec_destination=${CONFIG_KBC1126_FW1#../../}
if [ ! -d "${_ec_destination%/*}" ]; then
mkdir -p "${_ec_destination%/*}"
fi
if [ -d "${appdir}" ]; then
rm -Rf "${appdir}"
fi
if [ -f "${_ec_destination}" ]; then
printf "ec already downloaded\n"
return 0
fi
unar "${dl_path}" -o "${appdir}"
(
cd "${appdir}/${dl_path##*/}"
mv Rompaq/68*.BIN ec.bin
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if [ ! -f ec.bin ]; then
unar -D ROM.CAB Rom.bin
mv Rom.bin ec.bin
fi
"${kbc1126_ec_dump}" ec.bin
)
for i in 1 2; do
if [ -f "${appdir}/${dl_path##*/}/ec.bin.fw${i}" ]; then
continue
fi
printf "Not found: %s/%s/ec.bin.fw%s\n" \
${appdir} ${dl_path##*/} ${i}
printf "Could not extract EC firmware for: %s\n" \
${board}
return 1
done
cp "${appdir}/${dl_path##*/}"/ec.bin.fw* "${_ec_destination%/*}/"
}
download_e6400vga()
{
printf "Downloading Nvidia VGA ROM for Dell Latitude E6400\n"
fetch_update e6400vga || return 1
extract_e6400vga || return 1
return 0
}
extract_e6400vga()
{
printf "Extracting Nvidia VGA ROM for ${board}\n"
_vga_destination=${CONFIG_VGA_BIOS_FILE#../../}
if [ -f "${_vga_destination}" ]; then
printf 'vga rom already downloaded\n'
return 0
fi
if [ ! -d "${_vga_destination%/*}" ]; then
mkdir -p ${_vga_destination%/*}
fi
if [ -d "${appdir}" ]; then
rm -r ${appdir}
fi
mkdir -p "${appdir}"
mv "${dl_path}" "${appdir}"
if [ "${e6400_vga_offset}" = "" ]; then
printf "E6400 VGA offset not defined\n"
return 1
fi
if [ "${e6400_vga_romname}" = "" ]; then
printf "E6400 VGA ROM name not defined\n"
return 1
fi
(
cd "${appdir}"
tail -c +${e6400_vga_offset} "${dl_path##*/}" \
| gunzip > bios.bin
if [ ! -f "bios.bin" ]; then
fail 'Could not extract bios.bin from Dell E6400 update'
fi
"${e6400_unpack}" bios.bin || printf "TODO: fix dell extract util\n"
if [ ! -f "${e6400_vga_romname}" ]; then
fail 'Could not extract VGA ROM from Dell E6400 BIOS update'
fi
)
cp "${appdir}"/"${e6400_vga_romname}" "${_vga_destination}"
printf "E6400 Nvidia ROM saved to: %s\n" "${_vga_destination}"
return 0
}
fetch_update()
{
printf "Fetching vendor update for board: %s\n" ${board}
fw_type="${1}"
dl=""
dl_bkup=""
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}
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
vendor_checksum ${dlsum} || \
wget ${dl} -O ${dl_path} || wget ${dl_bkup} -O ${dl_path}
vendor_checksum ${dlsum} || fail \
"Cannot guarantee intergity of vendor update for: ${board}"
return 0
}
vendor_checksum()
{
sha1=$1
if [ ! -f "${dl_path}" ]; then
printf "Vendor update not found on disk for: %s\n" ${board}
return 1
fi
if [ "$(sha1sum ${dl_path} | awk '{print $1}')" != "${sha1}" ]; then
printf "Bad checksum on vendor update for: %s\n" ${board}
return 1
fi
return 0
}
fail()
{
printf "\nERROR: $@\n"
exit 1
}
main $@