Initial commit

target/linux/x86/base-files/lib/preinit/01_sysinfo

@@ -0,0 +1,65 @@
+sanitize_name_x86() {
+	sed -e '
+		y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/;
+		s/[^a-z0-9_-]\+/-/g;
+		s/^-//;
+		s/-$//;
+	' "$@"
+}
+
+do_sysinfo_x86() {
+	local vendor product file
+
+	for file in sys_vendor board_vendor; do
+		vendor="$(cat /sys/devices/virtual/dmi/id/$file 2>/dev/null)"
+		case "$vendor" in
+		empty | \
+		System\ manufacturer | \
+		To\ [bB]e\ [fF]illed\ [bB]y\ O\.E\.M\.)
+			continue
+			;;
+		esac
+		[ -n "$vendor" ] && break
+	done
+
+	for file in product_name board_name; do
+		product="$(cat /sys/devices/virtual/dmi/id/$file 2>/dev/null)"
+		case "$vendor:$product" in
+		?*:empty | \
+		?*:System\ Product\ Name | \
+		?*:To\ [bB]e\ [fF]illed\ [bB]y\ O\.E\.M\.)
+			continue
+			;;
+		"PC Engines:APU")
+			product="apu1"
+			break
+			;;
+		"Sophos:SG"|"Sophos:XG")
+			local product_version
+			product_version="$(cat /sys/devices/virtual/dmi/id/product_version 2>/dev/null)"
+			case "$product_version" in
+			105*|115*|125*|135*|85*|86*)
+				product="${product}-${product_version}"
+				break
+				;;
+			esac
+			;;
+		"Supermicro:Super Server")
+			continue
+			;;
+		?*:?*)
+			break
+			;;
+		esac
+	done
+
+	[ -n "$vendor" -a -n "$product" ] || return
+
+	mkdir -p /tmp/sysinfo
+
+	echo "$vendor $product" > /tmp/sysinfo/model
+
+	sanitize_name_x86 /tmp/sysinfo/model > /tmp/sysinfo/board_name
+}
+
+boot_hook_add preinit_main do_sysinfo_x86

target/linux/x86/base-files/lib/preinit/02_load_x86_ucode

@@ -0,0 +1,9 @@
+# Copyright (C) 2018 OpenWrt.org
+
+do_load_x86_ucode() {
+	if [ -e "/sys/devices/system/cpu/microcode/reload" ]; then
+		echo 1 > /sys/devices/system/cpu/microcode/reload
+	fi
+}
+
+boot_hook_add preinit_main do_load_x86_ucode

target/linux/x86/base-files/lib/preinit/15_essential_fs_x86

@@ -0,0 +1,7 @@
+# Copyright (C) 2006-2010 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+do_mount_procfs() {
+	mount -o noatime -t proc none /proc
+}
+

target/linux/x86/base-files/lib/preinit/20_check_iso

@@ -0,0 +1,5 @@
+check_for_iso() {
+	grep -qE '/dev/root.*iso9660' /proc/mounts && ramoverlay
+}
+
+boot_hook_add preinit_mount_root check_for_iso

target/linux/x86/base-files/lib/preinit/79_move_config

@@ -0,0 +1,19 @@
+# Copyright (C) 2012-2015 OpenWrt.org
+
+move_config() {
+	local partdev parttype=ext4
+
+	. /lib/upgrade/common.sh
+
+	if export_bootdevice && export_partdevice partdev 1; then
+		mkdir -p /boot
+		part_magic_fat "/dev/$partdev" && parttype=vfat
+		mount -t $parttype -o rw,noatime "/dev/$partdev" /boot
+		if [ -f "/boot/$BACKUP_FILE" ]; then
+			mv -f "/boot/$BACKUP_FILE" /
+		fi
+		mount --bind /boot/boot /boot
+	fi
+}
+
+boot_hook_add preinit_mount_root move_config

target/linux/x86/base-files/lib/upgrade/platform.sh

@@ -0,0 +1,130 @@
+RAMFS_COPY_BIN='grub-bios-setup'
+
+platform_check_image() {
+	local diskdev partdev diff
+	[ "$#" -gt 1 ] && return 1
+
+	case "$(get_magic_word "$1")" in
+		eb48|eb63) ;;
+		*)
+			v "Invalid image type"
+			return 1
+		;;
+	esac
+
+	export_bootdevice && export_partdevice diskdev 0 || {
+		v "Unable to determine upgrade device"
+		return 1
+	}
+
+	get_partitions "/dev/$diskdev" bootdisk
+
+	v "Extract boot sector from the image"
+	get_image_dd "$1" of=/tmp/image.bs count=63 bs=512b
+
+	get_partitions /tmp/image.bs image
+
+	#compare tables
+	diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
+
+	rm -f /tmp/image.bs /tmp/partmap.bootdisk /tmp/partmap.image
+
+	if [ -n "$diff" ]; then
+		v "Partition layout has changed. Full image will be written."
+		ask_bool 0 "Abort" && exit 1
+		return 0
+	fi
+}
+
+platform_copy_config() {
+	local partdev parttype=ext4
+
+	if export_partdevice partdev 1; then
+		part_magic_fat "/dev/$partdev" && parttype=vfat
+		mount -t $parttype -o rw,noatime "/dev/$partdev" /mnt
+		cp -af "$UPGRADE_BACKUP" "/mnt/$BACKUP_FILE"
+		umount /mnt
+	fi
+}
+
+platform_do_bootloader_upgrade() {
+	local bootpart parttable=msdos
+	local diskdev="$1"
+
+	if export_partdevice bootpart 1; then
+		mkdir -p /tmp/boot
+		mount -o rw,noatime "/dev/$bootpart" /tmp/boot
+		echo "(hd0) /dev/$diskdev" > /tmp/device.map
+		part_magic_efi "/dev/$diskdev" && parttable=gpt
+
+		v "Upgrading bootloader on /dev/$diskdev..."
+		grub-bios-setup \
+			-m "/tmp/device.map" \
+			-d "/tmp/boot/boot/grub" \
+			-r "hd0,${parttable}1" \
+			"/dev/$diskdev"
+
+		umount /tmp/boot
+	fi
+}
+
+platform_do_upgrade() {
+	local diskdev partdev diff
+
+	export_bootdevice && export_partdevice diskdev 0 || {
+		v "Unable to determine upgrade device"
+		return 1
+	}
+
+	sync
+
+	if [ "$UPGRADE_OPT_SAVE_PARTITIONS" = "1" ]; then
+		get_partitions "/dev/$diskdev" bootdisk
+
+		v "Extract boot sector from the image"
+		get_image_dd "$1" of=/tmp/image.bs count=63 bs=512b
+
+		get_partitions /tmp/image.bs image
+
+		#compare tables
+		diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
+	else
+		diff=1
+	fi
+
+	if [ -n "$diff" ]; then
+		get_image_dd "$1" of="/dev/$diskdev" bs=4096 conv=fsync
+
+		# Separate removal and addtion is necessary; otherwise, partition 1
+		# will be missing if it overlaps with the old partition 2
+		partx -d - "/dev/$diskdev"
+		partx -a - "/dev/$diskdev"
+
+		return 0
+	fi
+
+	#iterate over each partition from the image and write it to the boot disk
+	while read part start size; do
+		if export_partdevice partdev $part; then
+			v "Writing image to /dev/$partdev..."
+			get_image_dd "$1" of="/dev/$partdev" ibs=512 obs=1M skip="$start" count="$size" conv=fsync
+		else
+			v "Unable to find partition $part device, skipped."
+		fi
+	done < /tmp/partmap.image
+
+	v "Writing new UUID to /dev/$diskdev..."
+	get_image_dd "$1" of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
+
+	platform_do_bootloader_upgrade "$diskdev"
+	local parttype=ext4
+	part_magic_efi "/dev/$diskdev" || return 0
+
+	if export_partdevice partdev 1; then
+		part_magic_fat "/dev/$partdev" && parttype=vfat
+		mount -t $parttype -o rw,noatime "/dev/$partdev" /mnt
+		set -- $(dd if="/dev/$diskdev" bs=1 skip=1168 count=16 2>/dev/null | hexdump -v -e '8/1 "%02x "" "2/1 "%02x""-"6/1 "%02x"')
+		sed -i "s/\(PARTUUID=\)[a-f0-9-]\+/\1$4$3$2$1-$6$5-$8$7-$9/ig" /mnt/boot/grub/grub.cfg
+		umount /mnt
+	fi
+}