2 # Copyright (C) 2014 OpenWrt.org
7 # 'kernel' partition on NAND contains the kernel
10 # 'ubi' partition on NAND contains UBI
15 local dev="/dev/$(basename $dir)"
17 [ -e "$dev" ] && return 0
19 local devid="$(cat $dir/dev)"
20 local major="${devid%%:*}"
21 local minor="${devid##*:}"
22 mknod "$dev" c $major $minor
26 local ubidevdir ubivoldir
27 ubidevdir="/sys/devices/virtual/ubi/$1"
28 [ ! -d "$ubidevdir" ] && return 1
29 for ubivoldir in $ubidevdir/${1}_*; do
30 [ ! -d "$ubivoldir" ] && continue
31 if [ "$( cat $ubivoldir/name )" = "$2" ]; then
33 ubi_mknod "$ubivoldir"
40 local ubidevdir ubidev mtdnum
41 mtdnum="$( find_mtd_index $1 )"
42 [ ! "$mtdnum" ] && return 1
43 for ubidevdir in /sys/devices/virtual/ubi/ubi*; do
44 [ ! -d "$ubidevdir" ] && continue
45 cmtdnum="$( cat $ubidevdir/mtd_num )"
46 [ ! "$mtdnum" ] && continue
47 if [ "$mtdnum" = "$cmtdnum" ]; then
48 ubidev=$( basename $ubidevdir )
49 ubi_mknod "$ubidevdir"
56 nand_get_magic_long() {
57 dd if="$1" skip=$2 bs=4 count=1 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
60 get_magic_long_tar() {
61 ( tar xf $1 $2 -O | dd bs=4 count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2> /dev/null
90 identify_magic $(nand_get_magic_long "$1" "${2:-0}")
94 identify_magic $(get_magic_long_tar "$1" "$2")
97 nand_restore_config() {
99 local ubidev=$( nand_find_ubi $CI_UBIPART )
100 local ubivol="$( nand_find_volume $ubidev rootfs_data )"
102 ubivol="$( nand_find_volume $ubidev rootfs )"
104 if ! mount -t ubifs /dev/$ubivol /tmp/new_root; then
105 echo "mounting ubifs $ubivol failed"
109 mv "$1" "/tmp/new_root/sysupgrade.tgz"
115 nand_upgrade_prepare_ubi() {
116 local rootfs_length="$1"
117 local rootfs_type="$2"
118 local has_kernel="${3:-0}"
119 local has_env="${4:-0}"
121 local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
122 if [ ! "$mtdnum" ]; then
123 echo "cannot find ubi mtd partition $CI_UBIPART"
127 local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
128 if [ ! "$ubidev" ]; then
129 ubiattach -m "$mtdnum"
131 ubidev="$( nand_find_ubi "$CI_UBIPART" )"
134 if [ ! "$ubidev" ]; then
135 ubiformat /dev/mtd$mtdnum -y
136 ubiattach -m "$mtdnum"
138 ubidev="$( nand_find_ubi "$CI_UBIPART" )"
139 [ "$has_env" -gt 0 ] && {
140 ubimkvol /dev/$ubidev -n 0 -N ubootenv -s 1MiB
141 ubimkvol /dev/$ubidev -n 1 -N ubootenv2 -s 1MiB
145 local kern_ubivol="$( nand_find_volume $ubidev kernel )"
146 local root_ubivol="$( nand_find_volume $ubidev rootfs )"
147 local data_ubivol="$( nand_find_volume $ubidev rootfs_data )"
149 # remove ubiblock device of rootfs
150 local root_ubiblk="ubiblock${root_ubivol:3}"
151 if [ "$root_ubivol" -a -e "/dev/$root_ubiblk" ]; then
152 echo "removing $root_ubiblk"
153 if ! ubiblock -r /dev/$root_ubivol; then
154 echo "cannot remove $root_ubiblk"
160 [ "$kern_ubivol" ] && ubirmvol /dev/$ubidev -N kernel || true
161 [ "$root_ubivol" ] && ubirmvol /dev/$ubidev -N rootfs || true
162 [ "$data_ubivol" ] && ubirmvol /dev/$ubidev -N rootfs_data || true
165 if [ "$has_kernel" = "1" ]; then
166 if ! ubimkvol /dev/$ubidev -N kernel -s $kernel_length; then
167 echo "cannot create kernel volume"
173 local root_size_param
174 if [ "$rootfs_type" = "ubifs" ]; then
177 root_size_param="-s $rootfs_length"
179 if ! ubimkvol /dev/$ubidev -N rootfs $root_size_param; then
180 echo "cannot create rootfs volume"
184 # create rootfs_data for non-ubifs rootfs
185 if [ "$rootfs_type" != "ubifs" ]; then
186 if ! ubimkvol /dev/$ubidev -N rootfs_data -m; then
187 echo "cannot initialize rootfs_data volume"
195 nand_do_upgrade_success() {
196 local conf_tar="/tmp/sysupgrade.tgz"
199 [ -f "$conf_tar" ] && nand_restore_config "$conf_tar"
200 echo "sysupgrade successful"
204 # Flash the UBI image to MTD partition
205 nand_upgrade_ubinized() {
207 local mtdnum="$(find_mtd_index "$CI_UBIPART")"
211 mtdnum="$(find_mtd_index "$CI_UBIPART")"
214 if [ ! "$mtdnum" ]; then
215 echo "cannot find mtd device $CI_UBIPART"
219 local mtddev="/dev/mtd${mtdnum}"
220 ubidetach -p "${mtddev}" || true
222 ubiformat "${mtddev}" -y -f "${ubi_file}"
223 ubiattach -p "${mtddev}"
224 nand_do_upgrade_success
227 # Write the UBIFS image to UBI volume
228 nand_upgrade_ubifs() {
229 local rootfs_length=`(cat $1 | wc -c) 2> /dev/null`
231 nand_upgrade_prepare_ubi "$rootfs_length" "ubifs" "0" "0"
233 local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
234 local root_ubivol="$(nand_find_volume $ubidev rootfs)"
235 ubiupdatevol /dev/$root_ubivol -s $rootfs_length $1
237 nand_do_upgrade_success
242 local board_name="$(cat /tmp/sysinfo/board_name)"
243 local kernel_mtd="$(find_mtd_index $CI_KERNPART)"
245 local kernel_length=`(tar xf $tar_file sysupgrade-$board_name/kernel -O | wc -c) 2> /dev/null`
246 local rootfs_length=`(tar xf $tar_file sysupgrade-$board_name/root -O | wc -c) 2> /dev/null`
248 local rootfs_type="$(identify_tar "$tar_file" sysupgrade-$board_name/root)"
253 [ "$kernel_length" != 0 -a -n "$kernel_mtd" ] && {
254 tar xf $tar_file sysupgrade-$board_name/kernel -O | mtd write - $CI_KERNPART
256 [ "$kernel_length" = 0 -o ! -z "$kernel_mtd" ] && has_kernel=0
258 nand_upgrade_prepare_ubi "$rootfs_length" "$rootfs_type" "$has_kernel" "$has_env"
260 local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
261 [ "$has_kernel" = "1" ] && {
262 local kern_ubivol="$(nand_find_volume $ubidev kernel)"
263 tar xf $tar_file sysupgrade-$board_name/kernel -O | \
264 ubiupdatevol /dev/$kern_ubivol -s $kernel_length -
267 local root_ubivol="$(nand_find_volume $ubidev rootfs)"
268 tar xf $tar_file sysupgrade-$board_name/root -O | \
269 ubiupdatevol /dev/$root_ubivol -s $rootfs_length -
271 nand_do_upgrade_success
274 # Recognize type of passed file and start the upgrade process
275 nand_do_upgrade_stage2() {
276 local file_type=$(identify $1)
278 [ ! "$(find_mtd_index "$CI_UBIPART")" ] && CI_UBIPART="rootfs"
281 "ubi") nand_upgrade_ubinized $1;;
282 "ubifs") nand_upgrade_ubifs $1;;
283 *) nand_upgrade_tar $1;;
287 nand_upgrade_stage2() {
290 touch /tmp/sysupgrade
302 if [ -n "$(rootfs_type)" ]; then
303 v "Switching to ramdisk..."
304 run_ramfs ". /lib/functions.sh; include /lib/upgrade; nand_do_upgrade_stage2 $2"
306 nand_do_upgrade_stage2 $2
310 echo "Nand upgrade failed"
315 nand_upgrade_stage1() {
316 [ -f /tmp/sysupgrade-nand-path ] && {
317 path="$(cat /tmp/sysupgrade-nand-path)"
318 [ "$SAVE_CONFIG" != 1 -a -f "$CONF_TAR" ] &&
321 ubus call system nandupgrade "{\"path\": \"$path\" }"
325 append sysupgrade_pre_upgrade nand_upgrade_stage1
327 # Check if passed file is a valid one for NAND sysupgrade. Currently it accepts
329 # 1) UBI - should contain an ubinized image, header is checked for the proper
331 # 2) UBIFS - should contain UBIFS partition that will replace "rootfs" volume,
332 # header is checked for the proper MAGIC
333 # 3) TAR - archive has to include "sysupgrade-BOARD" directory with a non-empty
334 # "CONTROL" file (at this point its content isn't verified)
336 # You usually want to call this function in platform_check_image.
338 # $(1): board name, used in case of passing TAR file
339 # $(2): file to be checked
340 nand_do_platform_check() {
341 local board_name="$1"
343 local control_length=`(tar xf $tar_file sysupgrade-$board_name/CONTROL -O | wc -c) 2> /dev/null`
344 local file_type="$(identify $2)"
346 [ "$control_length" = 0 -a "$file_type" != "ubi" -a "$file_type" != "ubifs" ] && {
347 echo "Invalid sysupgrade file."
354 # Start NAND upgrade process
356 # $(1): file to be used for upgrade
358 echo -n $1 > /tmp/sysupgrade-nand-path
359 cp /sbin/upgraded /tmp/