2 # Copyright (C) 2014 OpenWrt.org
7 # 'kernel' partition on NAND contains the kernel
8 CI_KERNPART
="${CI_KERNPART:-kernel}"
10 # 'ubi' partition on NAND contains UBI
11 CI_UBIPART
="${CI_UBIPART:-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 $CI_KERNPART )"
146 local root_ubivol
="$( 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 $CI_KERNPART || true
161 [ "$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 $CI_KERNPART -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
"$conf_tar"
200 echo "sysupgrade successful"
205 # Flash the UBI image to MTD partition
206 nand_upgrade_ubinized
() {
208 local mtdnum
="$(find_mtd_index "$CI_UBIPART")"
212 mtdnum
="$(find_mtd_index "$CI_UBIPART")"
215 if [ ! "$mtdnum" ]; then
216 echo "cannot find mtd device $CI_UBIPART"
221 local mtddev
="/dev/mtd${mtdnum}"
222 ubidetach
-p "${mtddev}" || true
224 ubiformat
"${mtddev}" -y -f "${ubi_file}"
225 ubiattach
-p "${mtddev}"
226 nand_do_upgrade_success
229 # Write the UBIFS image to UBI volume
230 nand_upgrade_ubifs
() {
231 local rootfs_length
=`(cat $1 | wc -c) 2> /dev/null`
233 nand_upgrade_prepare_ubi
"$rootfs_length" "ubifs" "0" "0"
235 local ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
236 local root_ubivol
="$(nand_find_volume $ubidev rootfs)"
237 ubiupdatevol
/dev
/$root_ubivol -s $rootfs_length $1
239 nand_do_upgrade_success
243 if type 'platform_nand_board_name' >/dev
/null
2>/dev
/null
; then
244 platform_nand_board_name
248 cat /tmp
/sysinfo
/board_name
253 local kernel_mtd
="$(find_mtd_index $CI_KERNPART)"
255 local board_dir
=$
(tar tf
$tar_file |
grep -m 1 '^sysupgrade-.*/$')
256 board_dir
=${board_dir%/}
258 local kernel_length
=`(tar xf $tar_file ${board_dir}/kernel -O | wc -c) 2> /dev/null`
259 local rootfs_length
=`(tar xf $tar_file ${board_dir}/root -O | wc -c) 2> /dev/null`
261 local rootfs_type
="$(identify_tar "$tar_file" ${board_dir}/root)"
266 [ "$kernel_length" != 0 -a -n "$kernel_mtd" ] && {
267 tar xf
$tar_file ${board_dir}/kernel
-O | mtd
write - $CI_KERNPART
269 [ "$kernel_length" = 0 -o ! -z "$kernel_mtd" ] && has_kernel
=0
271 nand_upgrade_prepare_ubi
"$rootfs_length" "$rootfs_type" "$has_kernel" "$has_env"
273 local ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
274 [ "$has_kernel" = "1" ] && {
275 local kern_ubivol
="$(nand_find_volume $ubidev $CI_KERNPART)"
276 tar xf
$tar_file ${board_dir}/kernel
-O | \
277 ubiupdatevol
/dev
/$kern_ubivol -s $kernel_length -
280 local root_ubivol
="$(nand_find_volume $ubidev rootfs)"
281 tar xf
$tar_file ${board_dir}/root
-O | \
282 ubiupdatevol
/dev
/$root_ubivol -s $rootfs_length -
284 nand_do_upgrade_success
287 # Recognize type of passed file and start the upgrade process
289 if [ -n "$IS_PRE_UPGRADE" ]; then
290 # Previously, nand_do_upgrade was called from the platform_pre_upgrade
291 # hook; this piece of code handles scripts that haven't been
292 # updated. All scripts should gradually move to call nand_do_upgrade
293 # from platform_do_upgrade instead.
294 export do_upgrade
="nand_do_upgrade '$1'"
298 local file_type
=$
(identify
$1)
300 if type 'platform_nand_pre_upgrade' >/dev
/null
2>/dev
/null
; then
301 platform_nand_pre_upgrade
"$1"
304 [ ! "$(find_mtd_index "$CI_UBIPART")" ] && CI_UBIPART
="rootfs"
307 "ubi") nand_upgrade_ubinized
$1;;
308 "ubifs") nand_upgrade_ubifs
$1;;
309 *) nand_upgrade_tar
$1;;
313 # Check if passed file is a valid one for NAND sysupgrade. Currently it accepts
315 # 1) UBI - should contain an ubinized image, header is checked for the proper
317 # 2) UBIFS - should contain UBIFS partition that will replace "rootfs" volume,
318 # header is checked for the proper MAGIC
319 # 3) TAR - archive has to include "sysupgrade-BOARD" directory with a non-empty
320 # "CONTROL" file (at this point its content isn't verified)
322 # You usually want to call this function in platform_check_image.
324 # $(1): board name, used in case of passing TAR file
325 # $(2): file to be checked
326 nand_do_platform_check
() {
327 local board_name
="$1"
329 local control_length
=`(tar xf $tar_file sysupgrade-$board_name/CONTROL -O | wc -c) 2> /dev/null`
330 local file_type
="$(identify $2)"
332 [ "$control_length" = 0 -a "$file_type" != "ubi" -a "$file_type" != "ubifs" ] && {
333 echo "Invalid sysupgrade file."