diff options
Diffstat (limited to 'script/update/blobs/mrc')
| -rwxr-xr-x | script/update/blobs/mrc | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/script/update/blobs/mrc b/script/update/blobs/mrc deleted file mode 100755 index f6c81390..00000000 --- a/script/update/blobs/mrc +++ /dev/null @@ -1,143 +0,0 @@ -#!/usr/bin/env sh -# SPDX-License-Identifier: GPL-2.0-only - -# Forked from util/chromeos/crosfirmware.sh in coreboot cfc26ce278. Changes to -# it in this version are exclusively by Leah Rowe, copyright as of 2021 and -# 2023, on top of original coreboot copyright auditable in coreboot.git. - -[ "x${DEBUG+set}" = 'xset' ] && set -v -set -u -e - -. "include/err.sh" -. "include/fetch.sh" - -export PATH="${PATH}:/sbin" - -# use updated manifest from wayback machine, when updating mrc.bin, -# and update the other variables below accordingly. current manifest used: -# https://web.archive.org/web/20210211071412/https://dl.google.com/dl/edgedl/chromeos/recovery/recovery.conf - -# the wayback machine is used so that we get the same manifest. google -# does not seem to version the manifest, but archives are available - -# variables taken from that manifest: - -_board="peppy" -_file="chromeos_12239.92.0_peppy_recovery_stable-channel_mp-v3.bin" -_url="https://dl.google.com/dl/edgedl/chromeos/recovery/chromeos_12239.92.0_peppy_recovery_stable-channel_mp-v3.bin.zip" -_url2="https://web.archive.org/web/20200516070928/https://dl.google.com/dl/edgedl/chromeos/recovery/chromeos_12239.92.0_peppy_recovery_stable-channel_mp-v3.bin.zip" -_sha512sum="340a1cd41136a3ba0de9d306db0e65f51640a2efe63aee9934f326b276adc1af0a2df80c0731c5a749161ec32546909eedfa8ba95801faeb5dcfe1aa4e0840c7" -_mrc_complete_hash="e5b6d510a5fdb6a7ba0027588dbceef363a2bf30255e9222020abbe71468822f49962d423d872cc05b37098682281c016445f6aa20f88351a134facfe5f70d5b" -_mrc_complete="mrc/haswell/mrc.bin" - -# NOTE: the checksums, defined above, are actually sha-2 (sha512sum) -# but google only defines sha1 and md5. we verify with sha1sum, but then -# we use sha512sum in lbmk - -cbdir="coreboot/default" -cbfstool="cbutils/default/cbfstool" - -sname="" - -main() -{ - sname=${0} - printf "Downloading Intel MRC blobs\n" - - vendor_checksum "${_mrc_complete_hash}" "${_mrc_complete}" && return 0 - build_dependencies - fetch "mrc" "${_url}" "${_url2}" "${_sha512sum}" \ - "mrc/haswell/${_file}.zip" "err" -} - -build_dependencies() -{ - [ -d "${cbdir}/" ] || ./update project trees coreboot default || \ - err "build_dependencies: cannot fetch coreboot/default" - ./build coreboot utils default || \ - err "build_dependencies: cannot build cbutils/default" -} - -extract_mrc() -{ - mkdir -p mrc/haswell/ || err "extract_mrc: !mkdir mrc/haswell" - - ( - cd mrc/haswell/ || err "extract_mrc: !cd mrc/haswell" - - unzip -q "${_file}.zip" || err "download_image: cannot unzip" - rm -f "${_file}.zip" || err "download_image: can't rm zip {1}" - - extract_partition ROOT-A "${_file}" root-a.ext2 - extract_shellball root-a.ext2 chromeos-firmwareupdate-${_board} - - extract_coreboot chromeos-firmwareupdate-${_board} - - ../../"${cbfstool}" coreboot-*.bin extract -f mrc.bin -n mrc.bin \ - -r RO_SECTION || err "extract_mrc: could not fetch mrc.bin" - rm -f "chromeos-firmwareupdate-${_board}" coreboot-*.bin \ - "${_file}" "root-a.ext2" || err "extract_mrc: cannot remove files" - - printf "\n\nmrc.bin saved to ${_mrc_complete}\n\n" - ) -} - -extract_partition() -{ - NAME=${1} - FILE=${2} - ROOTFS=${3} - _bs=1024 - - printf "Extracting ROOT-A partition\n" - ROOTP=$( printf "unit\nB\nprint\nquit\n" | \ - parted "${FILE}" 2>/dev/null | grep "${NAME}" ) - - START=$(( $( echo ${ROOTP} | cut -f2 -d\ | tr -d "B" ) )) - SIZE=$(( $( echo ${ROOTP} | cut -f4 -d\ | tr -d "B" ) )) - - dd if="${FILE}" of="${ROOTFS}" bs=${_bs} skip=$(( ${START} / ${_bs} )) \ - count=$(( ${SIZE} / ${_bs} )) || \ - err "extract_partition: can't extract root file system" -} - -extract_shellball() -{ - ROOTFS=${1} - SHELLBALL=${2} - - printf "Extracting chromeos-firmwareupdate\n" - printf "cd /usr/sbin\ndump chromeos-firmwareupdate ${SHELLBALL}\nquit" \ - | debugfs "${ROOTFS}" || err "extract_shellball: debugfs" -} - -extract_coreboot() -{ - _shellball=${1} - _unpacked=$( mktemp -d ) - - printf "Extracting coreboot image\n" - - [ -f "${_shellball}" ] || \ - err "extract_coreboot: shellball missing in google peppy image" - - sh "${_shellball}" --unpack "${_unpacked}" || \ - err "extract_coreboot: shellball exits with non-zero status" - - # TODO: audit the f* out of that shellball, for each mrc version. - # it has to be updated for each mrc update. we should ideally - # implement the functionality ourselves. - - [ -f "${_unpacked}/VERSION" ] || \ - err "extract_coreboot: VERSION file missing on google coreboot rom" - - _version=$( cat "${_unpacked}/VERSION" | grep BIOS\ version: | \ - cut -f2 -d: | tr -d \ ) - - cp "${_unpacked}/bios.bin" "coreboot-${_version}.bin" || \ - err "extract_coreboot: cannot copy google peppy rom" - rm -Rf "${_unpacked}" || \ - err "extract_coreboot: cannot remove extracted google peppy archive" -} - -main $@ |