procd: remove procd-nand package

We always want to support staged upgrades now, so it's better to include
upgraded into the main package. /lib/upgrade/nand.sh is moved to
base-files.

The procd-nand-firstboot package is removed for now, it may return later
as a separate package.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

2 files changed, 387 insertions, 2 deletions

diff --git a/package/base-files/Makefile b/package/base-files/Makefile
index 512fa66ca7..912449c85a 100644
--- a/package/base-files/Makefile
+++ b/package/base-files/Makefile
@@ -18,7 +18,9 @@ PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/
 PKG_BUILD_DEPENDS:=usign/host
 PKG_LICENSE:=GPL-2.0
 
-PKG_CONFIG_DEPENDS := CONFIG_SIGNED_PACKAGES CONFIG_TARGET_INIT_PATH CONFIG_TARGET_PREINIT_DISABLE_FAILSAFE
+PKG_CONFIG_DEPENDS := \
+	CONFIG_SIGNED_PACKAGES CONFIG_TARGET_INIT_PATH CONFIG_TARGET_PREINIT_DISABLE_FAILSAFE \
+	CONFIG_NAND_SUPPORT
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -30,7 +32,7 @@ endif
 define Package/base-files
   SECTION:=base
   CATEGORY:=Base system
-  DEPENDS:=+netifd +libc +procd +jsonfilter +SIGNED_PACKAGES:usign +SIGNED_PACKAGES:lede-keyring +fstools +fwtool
+  DEPENDS:=+netifd +libc +procd +jsonfilter +SIGNED_PACKAGES:usign +SIGNED_PACKAGES:lede-keyring +NAND_SUPPORT:ubi-utils +fstools +fwtool
   TITLE:=Base filesystem for Lede
   URL:=http://openwrt.org/
   VERSION:=$(PKG_RELEASE)-$(REVISION)
@@ -105,9 +107,16 @@ ifdef CONFIG_SIGNED_PACKAGES
   endef
 endif
 
+ifeq ($(CONFIG_NAND_SUPPORT),)
+  define Package/base-files/nand-support
+	rm -f $(1)/lib/upgrade/nand.sh
+  endef
+endif
+
 define Package/base-files/install
 	$(CP) ./files/* $(1)/
 	$(Package/base-files/install-key)
+	$(Package/base-files/nand-support)
 	if [ -d $(GENERIC_PLATFORM_DIR)/base-files/. ]; then \
 		$(CP) $(GENERIC_PLATFORM_DIR)/base-files/* $(1)/; \
 	fi
diff --git a/package/base-files/files/lib/upgrade/nand.sh b/package/base-files/files/lib/upgrade/nand.sh
new file mode 100644
index 0000000000..9c831df3b4
--- /dev/null
+++ b/package/base-files/files/lib/upgrade/nand.sh
@@ -0,0 +1,376 @@
+#!/bin/sh
+# Copyright (C) 2014 OpenWrt.org
+#
+
+. /lib/functions.sh
+
+# 'kernel' partition on NAND contains the kernel
+CI_KERNPART="${CI_KERNPART:-kernel}"
+
+# 'ubi' partition on NAND contains UBI
+CI_UBIPART="${CI_UBIPART:-ubi}"
+
+ubi_mknod() {
+	local dir="$1"
+	local dev="/dev/$(basename $dir)"
+
+	[ -e "$dev" ] && return 0
+
+	local devid="$(cat $dir/dev)"
+	local major="${devid%%:*}"
+	local minor="${devid##*:}"
+	mknod "$dev" c $major $minor
+}
+
+nand_find_volume() {
+	local ubidevdir ubivoldir
+	ubidevdir="/sys/devices/virtual/ubi/$1"
+	[ ! -d "$ubidevdir" ] && return 1
+	for ubivoldir in $ubidevdir/${1}_*; do
+		[ ! -d "$ubivoldir" ] && continue
+		if [ "$( cat $ubivoldir/name )" = "$2" ]; then
+			basename $ubivoldir
+			ubi_mknod "$ubivoldir"
+			return 0
+		fi
+	done
+}
+
+nand_find_ubi() {
+	local ubidevdir ubidev mtdnum
+	mtdnum="$( find_mtd_index $1 )"
+	[ ! "$mtdnum" ] && return 1
+	for ubidevdir in /sys/devices/virtual/ubi/ubi*; do
+		[ ! -d "$ubidevdir" ] && continue
+		cmtdnum="$( cat $ubidevdir/mtd_num )"
+		[ ! "$mtdnum" ] && continue
+		if [ "$mtdnum" = "$cmtdnum" ]; then
+			ubidev=$( basename $ubidevdir )
+			ubi_mknod "$ubidevdir"
+			echo $ubidev
+			return 0
+		fi
+	done
+}
+
+nand_get_magic_long() {
+	dd if="$1" skip=$2 bs=4 count=1 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
+}
+
+get_magic_long_tar() {
+	( tar xf $1 $2 -O | dd bs=4 count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2> /dev/null
+}
+
+identify_magic() {
+	local magic=$1
+	case "$magic" in
+		"55424923")
+			echo "ubi"
+			;;
+		"31181006")
+			echo "ubifs"
+			;;
+		"68737173")
+			echo "squashfs"
+			;;
+		"d00dfeed")
+			echo "fit"
+			;;
+		"4349"*)
+			echo "combined"
+			;;
+		*)
+			echo "unknown $magic"
+			;;
+	esac
+}
+
+
+identify() {
+	identify_magic $(nand_get_magic_long "$1" "${2:-0}")
+}
+
+identify_tar() {
+	identify_magic $(get_magic_long_tar "$1" "$2")
+}
+
+nand_restore_config() {
+	sync
+	local ubidev=$( nand_find_ubi $CI_UBIPART )
+	local ubivol="$( nand_find_volume $ubidev rootfs_data )"
+	[ ! "$ubivol" ] &&
+		ubivol="$( nand_find_volume $ubidev rootfs )"
+	mkdir /tmp/new_root
+	if ! mount -t ubifs /dev/$ubivol /tmp/new_root; then
+		echo "mounting ubifs $ubivol failed"
+		rmdir /tmp/new_root
+		return 1
+	fi
+	mv "$1" "/tmp/new_root/sysupgrade.tgz"
+	umount /tmp/new_root
+	sync
+	rmdir /tmp/new_root
+}
+
+nand_upgrade_prepare_ubi() {
+	local rootfs_length="$1"
+	local rootfs_type="$2"
+	local has_kernel="${3:-0}"
+	local has_env="${4:-0}"
+
+	local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
+	if [ ! "$mtdnum" ]; then
+		echo "cannot find ubi mtd partition $CI_UBIPART"
+		return 1
+	fi
+
+	local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
+	if [ ! "$ubidev" ]; then
+		ubiattach -m "$mtdnum"
+		sync
+		ubidev="$( nand_find_ubi "$CI_UBIPART" )"
+	fi
+
+	if [ ! "$ubidev" ]; then
+		ubiformat /dev/mtd$mtdnum -y
+		ubiattach -m "$mtdnum"
+		sync
+		ubidev="$( nand_find_ubi "$CI_UBIPART" )"
+		[ "$has_env" -gt 0 ] && {
+			ubimkvol /dev/$ubidev -n 0 -N ubootenv -s 1MiB
+			ubimkvol /dev/$ubidev -n 1 -N ubootenv2 -s 1MiB
+		}
+	fi
+
+	local kern_ubivol="$( nand_find_volume $ubidev kernel )"
+	local root_ubivol="$( nand_find_volume $ubidev rootfs )"
+	local data_ubivol="$( nand_find_volume $ubidev rootfs_data )"
+
+	# remove ubiblock device of rootfs
+	local root_ubiblk="ubiblock${root_ubivol:3}"
+	if [ "$root_ubivol" -a -e "/dev/$root_ubiblk" ]; then
+		echo "removing $root_ubiblk"
+		if ! ubiblock -r /dev/$root_ubivol; then
+			echo "cannot remove $root_ubiblk"
+			return 1;
+		fi
+	fi
+
+	# kill volumes
+	[ "$kern_ubivol" ] && ubirmvol /dev/$ubidev -N kernel || true
+	[ "$root_ubivol" ] && ubirmvol /dev/$ubidev -N rootfs || true
+	[ "$data_ubivol" ] && ubirmvol /dev/$ubidev -N rootfs_data || true
+
+	# update kernel
+	if [ "$has_kernel" = "1" ]; then
+		if ! ubimkvol /dev/$ubidev -N kernel -s $kernel_length; then
+			echo "cannot create kernel volume"
+			return 1;
+		fi
+	fi
+
+	# update rootfs
+	local root_size_param
+	if [ "$rootfs_type" = "ubifs" ]; then
+		root_size_param="-m"
+	else
+		root_size_param="-s $rootfs_length"
+	fi
+	if ! ubimkvol /dev/$ubidev -N rootfs $root_size_param; then
+		echo "cannot create rootfs volume"
+		return 1;
+	fi
+
+	# create rootfs_data for non-ubifs rootfs
+	if [ "$rootfs_type" != "ubifs" ]; then
+		if ! ubimkvol /dev/$ubidev -N rootfs_data -m; then
+			echo "cannot initialize rootfs_data volume"
+			return 1
+		fi
+	fi
+	sync
+	return 0
+}
+
+nand_do_upgrade_success() {
+	local conf_tar="/tmp/sysupgrade.tgz"
+
+	sync
+	[ -f "$conf_tar" ] && nand_restore_config "$conf_tar"
+	echo "sysupgrade successful"
+	umount -a
+	reboot -f
+}
+
+# Flash the UBI image to MTD partition
+nand_upgrade_ubinized() {
+	local ubi_file="$1"
+	local mtdnum="$(find_mtd_index "$CI_UBIPART")"
+
+	[ ! "$mtdnum" ] && {
+		CI_UBIPART="rootfs"
+		mtdnum="$(find_mtd_index "$CI_UBIPART")"
+	}
+
+	if [ ! "$mtdnum" ]; then
+		echo "cannot find mtd device $CI_UBIPART"
+		umount -a
+		reboot -f
+	fi
+
+	local mtddev="/dev/mtd${mtdnum}"
+	ubidetach -p "${mtddev}" || true
+	sync
+	ubiformat "${mtddev}" -y -f "${ubi_file}"
+	ubiattach -p "${mtddev}"
+	nand_do_upgrade_success
+}
+
+# Write the UBIFS image to UBI volume
+nand_upgrade_ubifs() {
+	local rootfs_length=`(cat $1 | wc -c) 2> /dev/null`
+
+	nand_upgrade_prepare_ubi "$rootfs_length" "ubifs" "0" "0"
+
+	local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
+	local root_ubivol="$(nand_find_volume $ubidev rootfs)"
+	ubiupdatevol /dev/$root_ubivol -s $rootfs_length $1
+
+	nand_do_upgrade_success
+}
+
+nand_board_name() {
+	if type 'platform_nand_board_name' >/dev/null 2>/dev/null; then
+		platform_nand_board_name
+		return
+	fi
+
+	cat /tmp/sysinfo/board_name
+}
+
+nand_upgrade_tar() {
+	local tar_file="$1"
+	local board_name="$(nand_board_name)"
+	local kernel_mtd="$(find_mtd_index $CI_KERNPART)"
+
+	local kernel_length=`(tar xf $tar_file sysupgrade-$board_name/kernel -O | wc -c) 2> /dev/null`
+	local rootfs_length=`(tar xf $tar_file sysupgrade-$board_name/root -O | wc -c) 2> /dev/null`
+
+	local rootfs_type="$(identify_tar "$tar_file" sysupgrade-$board_name/root)"
+
+	local has_kernel=1
+	local has_env=0
+
+	[ "$kernel_length" != 0 -a -n "$kernel_mtd" ] && {
+		tar xf $tar_file sysupgrade-$board_name/kernel -O | mtd write - $CI_KERNPART
+	}
+	[ "$kernel_length" = 0 -o ! -z "$kernel_mtd" ] && has_kernel=0
+
+	nand_upgrade_prepare_ubi "$rootfs_length" "$rootfs_type" "$has_kernel" "$has_env"
+
+	local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
+	[ "$has_kernel" = "1" ] && {
+		local kern_ubivol="$(nand_find_volume $ubidev kernel)"
+	 	tar xf $tar_file sysupgrade-$board_name/kernel -O | \
+			ubiupdatevol /dev/$kern_ubivol -s $kernel_length -
+	}
+
+	local root_ubivol="$(nand_find_volume $ubidev rootfs)"
+	tar xf $tar_file sysupgrade-$board_name/root -O | \
+		ubiupdatevol /dev/$root_ubivol -s $rootfs_length -
+
+	nand_do_upgrade_success
+}
+
+# Recognize type of passed file and start the upgrade process
+nand_do_upgrade_stage2() {
+	local file_type=$(identify $1)
+
+	if type 'platform_nand_pre_upgrade' >/dev/null 2>/dev/null; then
+		platform_nand_pre_upgrade "$1"
+	fi
+
+	[ ! "$(find_mtd_index "$CI_UBIPART")" ] && CI_UBIPART="rootfs"
+
+	case "$file_type" in
+		"ubi")		nand_upgrade_ubinized $1;;
+		"ubifs")	nand_upgrade_ubifs $1;;
+		*)		nand_upgrade_tar $1;;
+	esac
+}
+
+nand_upgrade_stage2() {
+	[ $1 = "nand" ] && {
+		[ -f "$2" ] && {
+			touch /tmp/sysupgrade
+
+			killall -9 telnetd
+			killall -9 dropbear
+			killall -9 ash
+
+			kill_remaining TERM
+			sleep 3
+			kill_remaining KILL
+
+			sleep 1
+
+			if [ -n "$(rootfs_type)" ]; then
+				v "Switching to ramdisk..."
+				run_ramfs ". /lib/functions.sh; include /lib/upgrade; nand_do_upgrade_stage2 $2"
+			else
+				nand_do_upgrade_stage2 $2
+			fi
+			return 0
+		}
+		echo "Nand upgrade failed"
+		exit 1
+	}
+}
+
+nand_upgrade_stage1() {
+	[ -f /tmp/sysupgrade-nand-path ] && {
+		path="$(cat /tmp/sysupgrade-nand-path)"
+		[ "$SAVE_CONFIG" != 1 -a -f "$CONF_TAR" ] &&
+			rm $CONF_TAR
+
+		ubus call system nandupgrade "{\"prefix\": \"$RAM_ROOT\", \"path\": \"$path\" }"
+		exit 0
+	}
+}
+
+# Check if passed file is a valid one for NAND sysupgrade. Currently it accepts
+# 3 types of files:
+# 1) UBI - should contain an ubinized image, header is checked for the proper
+#    MAGIC
+# 2) UBIFS - should contain UBIFS partition that will replace "rootfs" volume,
+#    header is checked for the proper MAGIC
+# 3) TAR - archive has to include "sysupgrade-BOARD" directory with a non-empty
+#    "CONTROL" file (at this point its content isn't verified)
+#
+# You usually want to call this function in platform_check_image.
+#
+# $(1): board name, used in case of passing TAR file
+# $(2): file to be checked
+nand_do_platform_check() {
+	local board_name="$1"
+	local tar_file="$2"
+	local control_length=`(tar xf $tar_file sysupgrade-$board_name/CONTROL -O | wc -c) 2> /dev/null`
+	local file_type="$(identify $2)"
+
+	[ "$control_length" = 0 -a "$file_type" != "ubi" -a "$file_type" != "ubifs" ] && {
+		echo "Invalid sysupgrade file."
+		return 1
+	}
+
+	return 0
+}
+
+# Start NAND upgrade process
+#
+# $(1): file to be used for upgrade
+nand_do_upgrade() {
+	echo -n $1 > /tmp/sysupgrade-nand-path
+	install_bin /sbin/upgraded
+	ln -s "$RAM_ROOT"/sbin/upgraded /tmp/upgraded
+	nand_upgrade_stage1
+}