1 files changed, 148 insertions, 0 deletions
diff --git a/include/inject.sh b/include/inject.sh
new file mode 100644
index 00000000..795b2c70
--- /dev/null
+++ b/include/inject.sh
@@ -0,0 +1,148 @@
+# 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"
+tmpromdel="$XBMK_CACHE/DO_NOT_FLASH"
+nvm="util/nvmutil/nvm"
+ifdtool="elf/coreboot/default/ifdtool"
+
+cv="CONFIG_GBE_BIN_PATH"
+[ -n "$cvxbmk" ] && cv="$cv $cvxbmk"
+[ -n "$cvchk" ] && cv="$cv $cvchk"
+
+eval "`setvars "" archive boarddir IFD_platform ifdprefix tree new_mac \
+    tmpromdir board xchanged $cv`"
+
+inject()
+{
+	remkdir "$tmpromdel"
+
+	set +u +e
+	[ $# -lt 1 ] && err "No options specified"
+	eval "`setvars "" nuke new_mac xchanged`"
+
+	archive="$1";
+	new_mac="xx:xx:xx:xx:xx:xx"
+
+	[ $# -gt 1 ] && case "$2" in
+	nuke)
+		new_mac=""
+		nuke="nuke" ;;
+	setmac)
+		[ $# -gt 2 ] && new_mac="$3" && \
+		    [ -z "$new_mac" ] && err "Empty MAC address specified" ;;
+	*)
+		err "Unrecognised inject mode: '$2'"
+	esac
+	[ "$new_mac" = "keep" ] && new_mac=""
+
+	check_release
+	check_target && patch_release
+
+	[ "$xchanged" = "y" ] && remktar
+
+	xnot=" NOT" && [ "$xchanged" = "y" ] && xnot=""
+	printf "\n'%s' was%s modified\n" "$archive" "$xnot" 1>&2
+
+	x_ rm -Rf "$tmpromdel"
+}
+
+check_release()
+{
+	[ -L "$archive" ] && err "'$archive' is a symlink"
+	e "$archive" f missing && err "'$archive' missing"
+
+	archivename="`basename "$archive"`" || err "Can't get '$archive' name"
+	[ -z "$archivename" ] && err "Can't determine archive name"
+
+	case "$archivename" in
+	*_src.tar.xz)
+		err "'$archive' is a src archive, silly!" ;;
+	grub_*|seagrub_*|custom_*|seauboot_*|seabios_withgrub_*)
+		err "'$archive' is a ROM image (it must be a tarball)" ;;
+	*.tar.xz) _stripped_prefix="${archivename#*_}"
+		board="${_stripped_prefix%.tar.xz}" ;;
+	*)
+		err "'$archive': could not detect board type" ;;
+	esac; :
+}
+
+check_target()
+{
+	[ "$board" = "${board#serprog_}" ] || return 1
+	boarddir="$cbcfgsdir/$board"
+
+	eval "`setcfg "$boarddir/target.cfg"`"
+	chkvars tree && x_ ./mk -d coreboot "$tree"
+
+	ifdtool="elf/coreboot/$tree/ifdtool"
+	[ -n "$IFD_platform" ] && ifdprefix="-p $IFD_platform"; :
+}
+
+patch_release()
+{
+	[ "$nuke" = "nuke" ] || x_ ./mk download "$board"
+
+	has_hashes="n"
+	tmpromdir="$tmpromdel/bin/$board"
+
+	remkdir "${tmpromdir%"/bin/$board"}"
+	x_ tar -xf "$archive" -C "${tmpromdir%"/bin/$board"}"
+
+	for _hashes in "vendorhashes" "blobhashes"; do
+		e "$tmpromdir/$_hashes" f && \
+		    has_hashes="y" && hashfile="$_hashes" && break; :
+	done
+
+	readkconfig || exit 0
+
+	[ -n "$new_mac" ] && [ -n "$CONFIG_GBE_BIN_PATH" ] && modify_mac; :
+}
+
+readkconfig()
+{
+	x_ rm -f "$xbtmp/cbcfg"
+	fx_ scankconfig x_ find "$boarddir/config" -type f
+	eval "`setcfg "$xbtmp/cbcfg" 1`"
+	setvfile "$@" || return 1; :
+}
+
+scankconfig()
+{
+	for cbc in $cv; do
+		grep "$cbc" "$1" 1>>"$xbtmp/cbcfg" 2>/dev/null || :
+	done
+}
+
+modify_mac()
+{
+	x_ cp "${CONFIG_GBE_BIN_PATH##*../}" "$xbloc/gbe"
+	[ -n "$new_mac" ] && [ "$new_mac" != "restore" ] && \
+	    x_ make -C util/nvmutil clean && x_ make -C util/nvmutil && \
+	    x_ "$nvm" "$xbloc/gbe" setmac "$new_mac"
+
+	fx_ newmac x_ find "$tmpromdir" -maxdepth 1 -type f -name "*.rom"
+
+	printf "\nThe following GbE NVM data will be written:\n"
+	x_ "$nvm" "$xbloc/gbe" dump | grep -v "bytes read from file" || :
+}
+
+newmac()
+{
+	e "$1" f && xchanged="y" && x_ \
+	    "$ifdtool" $ifdprefix -i GbE:"$xbloc/gbe" "$1" -O "$1"; :
+}
+
+remktar()
+{
+	(
+	x_ cd "${tmpromdir%"/bin/$board"}"
+	printf "Re-building tar archive (please wait)\n"
+	mkrom_tarball "bin/$board" 1>/dev/null
+	) || err "Cannot re-generate '$archive'"
+
+	mv "${tmpromdir%"/bin/$board"}/bin/${relname}_${board}.tar.xz" \
+	    "$archive" || err "'$archive' -> Can't overwrite"; :
+}