From 355eb765ff47b0855a6f5655312608d3264e70bf Mon Sep 17 00:00:00 2001
From: Leah Rowe <leah@libreboot.org>
Date: Sun, 27 Aug 2023 17:19:36 +0100
Subject: move resources/scripts/ to script/

Signed-off-by: Leah Rowe <leah@libreboot.org>
---
 script/update/blobs/download | 516 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 516 insertions(+)
 create mode 100755 script/update/blobs/download

(limited to 'script/update/blobs/download')

diff --git a/script/update/blobs/download b/script/update/blobs/download
new file mode 100755
index 00000000..3df460d4
--- /dev/null
+++ b/script/update/blobs/download
@@ -0,0 +1,516 @@
+#!/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
+
+. "include/err.sh"
+
+agent="Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0"
+
+ec_url=""
+ec_url_bkup=""
+ec_hash=""
+dl_hash=""
+dl_url=""
+dl_url_bkup=""
+dl_path=""
+e6400_vga_dl_hash=""
+e6400_vga_dl_url=""
+e6400_vga_dl_url_bkup=""
+e6400_vga_offset=""
+e6400_vga_romname=""
+sch5545ec_dl_url=""
+sch5545ec_dl_url_bkup=""
+sch5545ec_dl_hash=""
+
+cbdir="coreboot/default"
+cbcfgsdir="resources/coreboot"
+boarddir=""
+blobdir="blobs"
+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=""
+pfs_extract="$(pwd)/biosutilities/Dell_PFS_Extract.py"
+uefiextract="$(pwd)/uefitool/uefiextract"
+_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=""
+CONFIG_INCLUDE_SMSC_SCH5545_EC_FW=""
+CONFIG_SMSC_SCH5545_EC_FW_FILE=""
+
+main()
+{
+	[ $# -gt 0 ] || \
+		err "No argument given"
+
+	board="${1}"
+	boarddir="${cbcfgsdir}/${board}"
+
+	[ -d "${boarddir}" ] || \
+		err "Board target, ${board}, not defined"
+	[ -f "${boarddir}/target.cfg" ] || \
+		err "Target missing target.cfg"
+
+	no_config="printf \"No config for target, %s\\n\" ${board} 1>&2; exit 0"
+	for x in "${boarddir}"/config/*; do
+		[ -f "${x}" ] && no_config=""
+	done
+	eval "${no_config}"
+
+	detect_firmware || exit 0
+	scan_sources_config
+
+	build_dependencies
+	download_blobs
+}
+
+detect_firmware()
+{
+	set -- "${boarddir}/config/"*
+	. "${1}"
+	. "${boarddir}/target.cfg"
+
+	[ "${CONFIG_HAVE_MRC}" = "y" ] && needs="${needs} MRC"
+	[ "${CONFIG_HAVE_IFD_BIN}" = "y" ] && needs="${needs} IFD"
+	[ "${CONFIG_HAVE_ME_BIN}" = "y" ] && needs="${needs} ME"
+	[ "${CONFIG_HAVE_GBE_BIN}" = "y" ] && needs="${needs} GBE"
+	[ "${CONFIG_KBC1126_FIRMWARE}" = "y" ] && needs="${needs} EC"
+	[ "${CONFIG_BOARD_DELL_E6400}" = "y" ] && \
+	    [ "${CONFIG_VGA_BIOS_FILE}" != "" ] && needs="${needs} E6400VGA"
+	[ "${CONFIG_INCLUDE_SMSC_SCH5545_EC_FW}" = "y" ] && \
+	    needs="${needs} SCH5545EC"
+	[ -z ${needs+x} ] && \
+		printf "No binary blobs needed for this board\n" && \
+		return 1
+	printf "Firmware needed for board '%s':\n%s\n" "${board}" "${needs}"
+}
+
+scan_sources_config()
+{
+	# Shorthand (avoid duplicating configs per flash size)
+	_b=${board%%_*mb}
+
+	awkstr=" /\{.*${_b}.*}{/ {flag=1;next} /\}/{flag=0} flag { print }"
+
+	while read -r line ; do
+		case ${line} in
+		EC_url_bkup*)
+			set ${line}
+			ec_url_bkup=${2} ;;
+		EC_url*)
+			set ${line}
+			ec_url=${2} ;;
+		EC_hash*)
+			set ${line}
+			ec_hash=${2} ;;
+		DL_hash*)
+			set ${line}
+			dl_hash=${2} ;;
+		DL_url_bkup*)
+			set ${line}
+			dl_url_bkup=${2} ;;
+		DL_url*)
+			set ${line}
+			dl_url=${2} ;;
+		E6400_VGA_DL_hash*)
+			set ${line}
+			e6400_vga_dl_hash=${2} ;;
+		E6400_VGA_DL_url_bkup*)
+			set ${line}
+			e6400_vga_dl_url_bkup=${2} ;;
+		E6400_VGA_DL_url*)
+			set ${line}
+			e6400_vga_dl_url=${2} ;;
+		E6400_VGA_offset*)
+			set ${line}
+			e6400_vga_offset=${2} ;;
+		E6400_VGA_romname*)
+			set ${line}
+			e6400_vga_romname=${2} ;;
+		SCH5545EC_DL_hash*)
+			set ${line}
+			sch5545ec_dl_hash=${2} ;;
+		SCH5545EC_DL_url_bkup*)
+			set ${line}
+			sch5545ec_dl_url_bkup=${2} ;;
+		SCH5545EC_DL_url*)
+			set ${line}
+			sch5545ec_dl_url=${2} ;;
+		esac
+	done << EOF
+	$(eval "awk '${awkstr}' resources/blobs/sources")
+EOF
+}
+
+build_dependencies()
+{
+	[ -d ${cbdir} ] || \
+		./fetch_trees coreboot ${cbdir##*/} || \
+		    err "build_dependencies: can't fetch ${cbdir}"
+	for d in uefitool biosutilities bios_extract me_cleaner; do
+		[ -d "${d}" ] && continue
+		./fetch "${d}" || \
+		    err "build_dependencies: can't fetch ${d}"
+	done
+	[ -f uefitool/uefiextract ] || \
+		./handle make file -b uefitool || \
+		    err "build_dependencies: can't build uefitool"
+	if [ ! -f "${cbdir}/util/kbc1126/kbc1126_ec_dump" ]; then
+		make -BC "${cbdir}/util/kbc1126" || \
+		    err "build_dependencies: can't build kbc1126_ec_dump"
+	fi
+}
+
+download_blobs()
+{
+	for need in ${needs}; do
+		case ${need} in
+		*ME*)
+			download_blob_intel_me || _failed="${_failed} me" ;;
+		*SCH5545EC*)
+			download_sch5545ec || failed="${_failed} sch5545ec" ;;
+		*EC*)
+			download_ec || _failed="${_failed} ec" ;;
+		*E6400VGA*)
+			download_e6400vga || _failed="${_failed} e6400vga" ;;
+		*MRC*)
+			./update blobs mrc || _failed="${_failed} mrc" ;;
+		esac
+	done
+	
+	if [ ! -z ${_failed+x} ]; then
+		err "download_blobs: can't download blobs: ${_failed}\n"
+	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
+}
+
+extract_blob_intel_me()
+{
+	printf "Extracting neutered ME for ${board}\n"
+
+	_me_destination=${CONFIG_ME_BIN_PATH#../../}
+
+	[ -d "${_me_destination%/*}" ] || \
+		mkdir -p "${_me_destination%/*}" || \
+		    err "extract_blob_intel_me: mkdir ${_me_destination%/*}"
+	[ ! -d "${appdir}" ] || \
+		rm -Rf "${appdir}" || \
+		    err "extract_blob_intel_me: can't rm -Rf \"${appdir}\""
+	if [ -f "${_me_destination}" ]; then
+		printf "Intel ME firmware already downloaded\n" 1>&2
+		return 0
+	fi
+
+	printf "Extracting and stripping Intel ME firmware\n"
+
+	innoextract "${dl_path}" -d "${appdir}" || \
+	    7z x "${dl_path}" -o"${appdir}" || \
+	    unar "${dl_path}" -o "${appdir}" || \
+	    err "extract_blob_intel_me: could not extract vendor update"
+
+	bruteforce_extract_blob_intel_me "$(pwd)/${_me_destination}" \
+	    "$(pwd)/${appdir}" || \
+	    err "extract_blob_intel_me: could not extract Intel ME firmware"
+
+	[ -f "${_me_destination}" ] || \
+		err "extract_blob_intel_me, ${board}: me.bin missing"
+
+	printf "Truncated and cleaned me output to: %s\n" "${_me_destination}"
+}
+
+# cursed, carcinogenic code. TODO rewrite it better
+bruteforce_extract_blob_intel_me()
+{
+	_me_destination="${1}"
+	cdir="${2}" # must be an absolute path, not relative
+
+	[ -f "${_me_destination}" ] && return 0
+
+	sdir="$(mktemp -d)"
+	mkdir -p "${sdir}" || return 1
+
+	(
+	printf "Entering %s\n" "${cdir}"
+	cd "${cdir}" || \
+	    err "bruteforce_extract_blob_intel_me: can't cd \"${cdir}\""
+	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}" \
+			    || innoextract "${i}" -d "${_7ztest}" \
+			    || unar "${i}" -o "${_7ztest}" \
+			    || continue
+			bruteforce_extract_blob_intel_me "${_me_destination}" \
+			    "${cdir}/${_7ztest}"
+		elif [ -d "$i" ]; then
+			bruteforce_extract_blob_intel_me "${_me_destination}" \
+			    "${cdir}/${i}"
+		else
+			printf "SKIPPING: %s\n" "${i}"
+			continue
+		fi
+		cdir="${1}"
+		cd "${cdir}" # audit note: we already checked this (see above)
+	done
+	)
+
+	rm -Rf "${sdir}" || \
+	    err "bruteforce_extract_blob_intel_me: can't rm -Rf \"${sdir}\""
+}
+
+download_ec()
+{
+	printf "Downloading KBC1126 EC firmware for HP laptop\n"
+
+	fetch_update ec || return 1
+	extract_blob_kbc1126_ec || return 1
+}
+
+extract_blob_kbc1126_ec()
+{
+	printf "Extracting KBC1126 EC firmware for board: %s\n" ${board}
+
+	_ec_destination=${CONFIG_KBC1126_FW1#../../}
+
+	[ -d "${_ec_destination%/*}" ] || \
+		mkdir -p "${_ec_destination%/*}" || \
+		    err "extract_blob_kbc1126_ec: !mkdir ${_ec_destination%/*}"
+	[ ! -d "${appdir}" ] || \
+		rm -Rf "${appdir}" || \
+		    err "extract_blob_kbc1126_ec: !rm -Rf ${appdir}"
+	if [ -f "${_ec_destination}" ]; then
+		printf "KBC1126 EC firmware already downloaded\n" 1>&2
+		return 0
+	fi
+
+	unar "${dl_path}" -o "${appdir}" || \
+	    err "extract_blob_kbc1126_ec: !unar \"${dl_path}\" -o \"${appdir}\""
+
+	(
+	cd "${appdir}/${dl_path##*/}" || \
+	    err "extract_blob_kbc1126_ec: !cd \"${appdir}/${dl_path##*/}\""
+
+	mv Rompaq/68*.BIN ec.bin || :
+	if [ ! -f ec.bin ]; then
+		unar -D ROM.CAB Rom.bin || \
+		    unar -D Rom.CAB Rom.bin || \
+		    unar -D 68*.CAB Rom.bin || \
+		    err "extract_blob_kbc1126_ec: can't extract ec.bin"
+		mv Rom.bin ec.bin || \
+		    err "extract_blob_kbc1126_ec: *didn't* extract ec.bin"
+	fi
+	[ -f ec.bin ] || \
+	    err "extract_blob_kbc1126_ec: ${board}: can't extract ec.bin"
+
+	"${kbc1126_ec_dump}" ec.bin || \
+	    err "extract_blob_kbc1126_ec: ${board}: can't extract ecfw1/2.bin"
+	)
+
+	ec_ex="y"
+	for i in 1 2; do
+		[ -f "${appdir}/${dl_path##*/}/ec.bin.fw${i}" ] || ec_ex="n"
+	done
+	[ "${ec_ex}" = "y" ] || \
+	    err "extract_blob_kbc1126_ec: ${board}: didn't extract ecfw1/2.bin"
+
+	cp "${appdir}/${dl_path##*/}"/ec.bin.fw* "${_ec_destination%/*}/" || \
+	    err "extract_blob_kbc1126_ec: cant mv ecfw1/2 ${_ec_destination%/*}"
+}
+
+download_e6400vga()
+{
+	printf "Downloading Nvidia VGA ROM for Dell Latitude E6400\n"
+
+	fetch_update e6400vga || return 1
+	extract_e6400vga || return 1
+}
+
+extract_e6400vga()
+{
+	printf "Extracting Nvidia VGA ROM for ${board}\n"
+
+	_vga_destination=${CONFIG_VGA_BIOS_FILE#../../}
+
+	if [ -f "${_vga_destination}" ]; then
+		printf "extract_e6400vga: vga rom already downloaded\n" 1>&2
+		return 0
+	fi
+	[ -d "${_vga_destination%/*}" ] || \
+		mkdir -p "${_vga_destination%/*}" || \
+		    err "extract_e6400vga: can't mkdir ${_vga_destination%/*}"
+	[ ! -d "${appdir}" ] || \
+		rm -Rf "${appdir}" || \
+		    err "extract_e6400vga: can't rm -Rf ${appdir}"
+
+	mkdir -p "${appdir}" || \
+	    err "extract_e6400vga: can't mkdir ${appdir}"
+	cp "${dl_path}" "${appdir}" || \
+	    err "extract_e6400vga: can't copy vendor update"
+
+	[ "${e6400_vga_offset}" = "" ] && \
+		err "extract_e6400vga: E6400 VGA offset not defined"
+	[ "${e6400_vga_romname}" = "" ] && \
+		err "extract_e6400vga: E6400 VGA ROM name not defined"
+
+	(
+	cd "${appdir}" || \
+	    err "extract_e6400vga: can't cd ${appdir}"
+	tail -c +${e6400_vga_offset} "${dl_path##*/}" | gunzip > bios.bin || \
+	    err "extract_e6400vga: can't gunzip > bios.bin"
+
+	[ -f "bios.bin" ] || \
+		err "extract_e6400vga: can't extract bios.bin from update"
+	"${e6400_unpack}" bios.bin || printf "TODO: fix dell extract util\n"
+	[ -f "${e6400_vga_romname}" ] || \
+		err "extract_e6400vga: can't extract vga rom from bios.bin"
+	)
+
+	cp "${appdir}"/"${e6400_vga_romname}" "${_vga_destination}" || \
+	    err "extract_e6400vga: can't copy vga rom to ${_vga_destination}"
+
+	printf "E6400 Nvidia ROM saved to: %s\n" "${_vga_destination}"
+}
+
+download_sch5545ec()
+{
+	printf "Downloading SMSC SCH5545 Environment Controller firmware\n"
+
+	fetch_update sch5545ec || return 1
+	extract_sch5545ec || return 1
+}
+
+# TODO: this code is cancer. hardcoded is bad, and stupid.
+# TODO: make it *scan* (based on signature, in each file)
+extract_sch5545ec()
+{
+	printf "Extracting SCH5545 Environment Controller firmware for '%s'\n" \
+	    ${board}
+
+	_sch5545ec_destination=${CONFIG_SMSC_SCH5545_EC_FW_FILE#../../}
+
+	if [ -f "${_sch5545ec_destination}" ]; then
+		printf "sch5545 firmware already downloaded\n" 1>&2
+		return 0
+	fi
+
+	[ ! -d "${appdir}" ] || rm -Rf "${appdir}" || \
+	    err "extract_sch5545ec: can't remove ${appdir}"
+
+	mkdir -p "${appdir}/" || err "extract_sch5545ec: !mkdir ${appdir}"
+	cp "${dl_path}" "${appdir}/" || \
+	    err "extract_sch5545ec: can't copy vendor update file"
+	python "${pfs_extract}" "${appdir}/${dlsum}" -e || \
+	    err "extract_sch5545ec: can't extract from vendor update"
+
+	# full system ROM (UEFI), to extract with UEFIExtract:
+	_bios="${appdir}/${dlsum}_extracted/Firmware"
+	_bios="${_bios}/1 ${dlsum} -- 1 System BIOS vA.28.bin"
+
+	# this is the SCH5545 firmware, inside of the extracted UEFI ROM:
+	_sch5545ec_fw="${_bios}.dump/4 7A9354D9-0468-444A-81CE-0BF617D890DF"
+	_sch5545ec_fw="${_sch5545ec_fw}/54 D386BEB8-4B54-4E69-94F5-06091F67E0D3"
+	_sch5545ec_fw="${_sch5545ec_fw}/0 Raw section/body.bin" # <-- this!
+
+	# this makes the file defined by _sch5545ec_fw available to copy
+	"${uefiextract}" "${_bios}" || \
+	    err "extract_sch5545ec: cannot extract from uefi image"
+
+	cp "${_sch5545ec_fw}" "${_sch5545ec_destination}" || \
+	    err "extract_sch5545ec: cannot copy sch5545ec firmware file"
+}
+
+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}
+	elif [ "${fw_type}" = "sch5545ec" ]; then
+		dl="${sch5545ec_dl_url}"
+		dl_bkup="${sch5545ec_dl_url_bkup}"
+		dlsum="${sch5545ec_dl_hash}"
+	else
+		err "fetch_update: Unsupported download type: ${fw_type}"
+	fi
+
+	[ -z "${dl_url+x}" ] && [ "${fw_type}" != "e6400vga" ] && \
+		err "fetch_update ${fw_type}: dl_url unspecified for: ${board}"
+
+	dl_path="${blobdir}/cache/${dlsum}"
+	mkdir -p "${blobdir}/cache" || err "fetch_update: !mkdir ${blobdir}/cache"
+
+	dl_fail="y"
+	vendor_checksum "${dlsum}" && dl_fail="n"
+	for x in "${dl}" "${dl_bkup}"; do
+		[ "${dl_fail}" = "n" ] && break
+		[ -z "${x}" ] && continue
+		rm -f "${dl_path}" || \
+		    err "fetch_update ${fw_type}: !rm -f ${dl_path}"
+		wget -U "${agent}" "${x}" -O "${dl_path}" || continue
+		vendor_checksum "${dlsum}" && dl_fail="n"
+	done
+	if [ "${dl_fail}" = "y" ]; then
+		printf "ERROR: invalid vendor updates for: %s\n" "${board}" 1>&2
+		err "fetch_update ${fw_type}: matched vendor update unavailable"
+	fi
+}
+
+vendor_checksum()
+{
+	if [ ! -f "${dl_path}" ]; then
+		printf "Vendor update not found on disk for: %s\n" "${board}" \
+		    1>&2
+		return 1
+	elif [ "$(sha1sum ${dl_path} | awk '{print $1}')" != "${1}" ]; then
+		printf "Bad checksum on vendor update for: %s\n" "${board}" 1>&2
+		return 1
+	fi
+}
+
+main $@
-- 
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