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update/blobs/*: unified download/checksum logic

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Use the same logic between blobs/download and blobs/mrc.

The logic is taken from blobs/download.

Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2023-09-29 03:20:02 +01:00
parent 5d934be7b0
commit 0bb3c59620
4 changed files with 64 additions and 90 deletions
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script/update/blobs/mrc
+11 -42
View File
@@ -9,6 +9,7 @@
set -u -e
. "include/err.sh"
. "include/fetch.sh"
export PATH="${PATH}:/sbin"
@@ -43,20 +44,10 @@ main()
sname=${0}
printf "Downloading Intel MRC blobs\n"
check_existing || return 0
vendor_checksum "${_mrc_complete_hash}" "${_mrc_complete}" && return 0
build_dependencies
fetch_mrc || err "could not fetch mrc.bin"
}
check_existing()
{
[ -f "${_mrc_complete}" ] || \
return 0
printf "found existing mrc.bin\n" 1>&2
[ "$(sha512sum "${_mrc_complete}" | awk '{print $1}')" \
= "${_mrc_complete_hash}" ] && \
return 1
printf "hashes did not match, starting over\n" 1>&2
fetch "mrc" "${_url}" "${_url2}" "${_sha512sum}" \
"mrc/haswell/${_file}.zip" "err"
}
build_dependencies()
@@ -67,18 +58,15 @@ build_dependencies()
err "build_dependencies: cannot build cbutils/default"
}
fetch_mrc()
extract_mrc()
{
mkdir -p mrc/haswell/ || err "fetch_mrc: !mkdir mrc/haswell"
mkdir -p mrc/haswell/ || err "extract_mrc: !mkdir mrc/haswell"
(
cd mrc/haswell/ || err "fetch_mrc: !cd mrc/haswell"
cd mrc/haswell/ || err "extract_mrc: !cd mrc/haswell"
download_image "${_url}" "${_file}" "${_sha512sum}"
[ -f ${_file} ] || \
download_image "${_url2}" "${_file}" "${_sha512sum}"
[ -f $_file ] || \
err "fetch_mrc: ${_file} not downloaded / verification failed."
unzip -q "${_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-${_board}
@@ -86,33 +74,14 @@ fetch_mrc()
extract_coreboot chromeos-firmwareupdate-${_board}
../../"${cbfstool}" coreboot-*.bin extract -f mrc.bin -n mrc.bin \
-r RO_SECTION || err "fetch_mrc: could not fetch mrc.bin"
-r RO_SECTION || err "extract_mrc: could not fetch mrc.bin"
rm -f "chromeos-firmwareupdate-${_board}" coreboot-*.bin \
"${_file}" "root-a.ext2" || err "fetch_mrc: cannot remove files"
"${_file}" "root-a.ext2" || err "extract_mrc: cannot remove files"
printf "\n\nmrc.bin saved to ${_mrc_complete}\n\n"
)
}
download_image()
{
url=${1}
_file=${2}
_sha512sum=${3}
printf "Downloading recovery image\n"
curl --retry 3 "$url" > "$_file.zip" || err "download_image: curl failed"
printf "Verifying recovery image checksum\n"
if [ "$(sha512sum "${_file}.zip" | awk '{print $1}')" = "${_sha512sum}" ]
then
unzip -q "${_file}.zip" || err "download_image: cannot unzip"
rm -f "${_file}.zip" || err "download_image: can't rm zip {1}"
return 0
fi
rm -f "${_file}.zip" || err "download_image: bad hash, and can't rm zip"
err "download_image: Bad checksum. Recovery image deleted"
}
extract_partition()
{
NAME=${1}