cbmk/include/inject.sh

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# SPDX-License-Identifier: GPL-3.0-only
# Copyright (c) 2022 Caleb La Grange <thonkpeasant@protonmail.com>
# Copyright (c) 2022 Ferass El Hafidi <vitali64pmemail@protonmail.com>
# Copyright (c) 2023-2025 Leah Rowe <leah@libreboot.org>
cbcfgsdir="config/coreboot"
hashfiles="vendorhashes blobhashes" # used to detect and error out
# if running on an archive that needs vendor files
dontflash="!!! AN ERROR OCCURED! Do NOT flash these images !!!"
tmpromdel="$xbmkpwd/tmp/DO_NOT_FLASH"
nvm="util/nvmutil/nvm"
ifdtool="elf/ifdtool/default/ifdtool"
cv="CONFIG_GBE_BIN_PATH CONFIG_IFD_BIN_PATH"
eval "`setvars "" tree new_mac archive boarddir rom cbdir xchanged \
tmpromdir IFD_platform ifdprefix xromsize $cv`"
fail_inject()
{
[ -L "$tmpromdel" ] || [ ! -d "$tmpromdel" ] || \
rm -Rf "$tmpromdel" || :
printf "\n\n%s\n\n" "$dontflash" 1>&2
printf "WARNING: File '%s' was NOT modified.\n\n" "$archive" 1>&2
err_ "$1"
}
inject()
{
err="fail_inject"
remkdir "$tmpromdel"
set +u +e
[ $# -lt 1 ] && $err "No options specified. - $dontflash"
eval "`setvars "" new_mac xchanged`"
archive="$1";
new_mac="xx:xx:xx:xx:xx:xx"
[ $# -gt 1 ] && case "$2" in
setmac)
[ $# -gt 2 ] && new_mac="$3" && \
[ -z "$new_mac" ] && $err "Empty MAC address specified" ;;
*) $err "Unrecognised inject mode: '$2'"
esac
check_release "$archive" || $err "'$archive' is not a release archive"
if readcfg && readkconfig; then
patch_release_roms
fi
[ "$xchanged" != "y" ] && printf "\n'%s' *NOT* modified.\n" "$archive"
[ "$xchanged" = "y" ] && printf "\n'%s' %s.\n" "$archive" "$xtype"; :
}
check_release()
{
[ -L "$archive" ] && $err "'$archive' is a symlink. $dontflash"
e "$archive" f missing && return 1
archivename="`basename "$archive"`"
[ -z "$archivename" ] && $err "Can't determine archive name. $dontflash"
case "$archivename" in
*_src.tar.xz)
$err "'$archive' is a src archive, silly!" ;;
grub_*|seagrub_*|custom_*|seauboot_*|seabios_withgrub_*)
return 1 ;;
*.tar.xz) _stripped_prefix="${archivename#*_}"
board="${_stripped_prefix%.tar.xz}" ;;
*) $err "'$archive': could not detect board type - $dontflash"
esac; :
}
readcfg()
{
if [ "$board" = "serprog_rp2040" ] || [ "$board" = "serprog_stm32" ] \
|| [ "$board" = "serprog_pico" ]; then
printf "'%s' is a serprog firmware archive.\n" "$archive" 1>&2
return 1
fi
boarddir="$cbcfgsdir/$board"
eval "`setcfg "$boarddir/target.cfg"`"
chkvars tree && x_ ./mk -d coreboot "$tree"
cbdir="src/coreboot/$tree"
cbfstool="elf/cbfstool/$tree/cbfstool"
rmodtool="elf/cbfstool/$tree/rmodtool"
cbfstool="elf/cbfstool/$tree/cbfstool"
ifdtool="elf/ifdtool/$tree/ifdtool"
[ -n "$IFD_platform" ] && ifdprefix="-p $IFD_platform"; :
}
readkconfig()
{
x_ rm -f "$xbmktmp/cbcfg"
cbcfg="`check_defconfig "$boarddir"`" || for cbc in $cv; do
grep "$cbc" "$cbcfg" 1>>"$xbmktmp/cbcfg" 2>/dev/null || :
done
eval "`setcfg "$xbmktmp/cbcfg" 1`"
}
patch_release_roms()
{
tmpromdir="tmp/DO_NOT_FLASH/bin/$board"
remkdir "${tmpromdir%"/bin/$board"}"
x_ tar -xf "$archive" -C "${tmpromdir%"/bin/$board"}"
for _hashes in $hashfiles; do
e "$tmpromdir/$_hashes" f && $err \
"'$archive': vendorfile insertion unsupported; $dontflash"
done
[ -z "$new_mac" ] || modify_mac || printf "\nGbE not defined\n" 1>&2
[ "$xchanged" = "y" ] || rm -Rf "$tmpromdel" || :
[ "$xchanged" = "y" ] || return 0
(
x_ cd "${tmpromdir%"/bin/$board"}"
mkrom_tarball "bin/$board"
) || $err "Cannot re-generate '$archive' - $dontflash"
mv "${tmpromdir%"/bin/$board"}/bin/${relname}_${board}.tar.xz" \
"$archive" || $err "'$archive' -> Can't overwrite - $dontflash"; :
}
modify_mac()
{
[ -n "$CONFIG_GBE_BIN_PATH" ] || return 1
x_ cp "${CONFIG_GBE_BIN_PATH##*../}" tmp/gbe
[ "$new_mac" != "restore" ] && x_ make -C util/nvmutil clean && \
x_ make -C util/nvmutil && \
x_ "$nvm" tmp/gbe setmac "$new_mac"
fe_ newmac "$tmpromdir" -maxdepth 1 -type f -name "*.rom"
printf "\nGbE NVM written to '%s':\n" "$archive"
x_ "$nvm" tmp/gbe dump | grep -v "bytes read from file" || :
[ "$new_mac" = "restore" ] && \
printf "\nDefault GbE file '%s' written, unmodified.\n" \
"${CONFIG_GBE_BIN_PATH##*../}"; :
}
newmac()
{
e "$1" f && xchanged="y" && x_ \
"$ifdtool" $ifdprefix -i GbE:tmp/gbe "$1" -O "$1"; :
}