ath79: update WA/XC devices UBNT_VERSION to 8.7.4
[openwrt/staging/wigyori.git] / package / base-files / files / lib / upgrade / nand.sh
index 5ecdb0ff23636b6a95edf8edf7b33c4f78703700..0a6fd8432d4623452b70f3732dfa7fb8efa1622c 100644 (file)
@@ -7,6 +7,8 @@
 CI_KERNPART="${CI_KERNPART:-kernel}"
 
 # 'ubi' partition on NAND contains UBI
+# There are also CI_KERN_UBIPART and CI_ROOT_UBIPART if kernel
+# and rootfs are on separated UBIs.
 CI_UBIPART="${CI_UBIPART:-ubi}"
 
 # 'rootfs' UBI volume on NAND contains the rootfs
@@ -26,7 +28,7 @@ ubi_mknod() {
 
 nand_find_volume() {
        local ubidevdir ubivoldir
-       ubidevdir="/sys/devices/virtual/ubi/$1"
+       ubidevdir="/sys/class/ubi/"
        [ ! -d "$ubidevdir" ] && return 1
        for ubivoldir in $ubidevdir/${1}_*; do
                [ ! -d "$ubivoldir" ] && continue
@@ -39,13 +41,12 @@ nand_find_volume() {
 }
 
 nand_find_ubi() {
-       local ubidevdir ubidev mtdnum
+       local ubidevdir ubidev mtdnum cmtdnum
        mtdnum="$( find_mtd_index $1 )"
        [ ! "$mtdnum" ] && return 1
-       for ubidevdir in /sys/devices/virtual/ubi/ubi*; do
-               [ ! -d "$ubidevdir" ] && continue
+       for ubidevdir in /sys/class/ubi/ubi*; do
+               [ ! -e "$ubidevdir/mtd_num" ] && continue
                cmtdnum="$( cat $ubidevdir/mtd_num )"
-               [ ! "$mtdnum" ] && continue
                if [ "$mtdnum" = "$cmtdnum" ]; then
                        ubidev=$( basename $ubidevdir )
                        ubi_mknod "$ubidevdir"
@@ -56,48 +57,27 @@ nand_find_ubi() {
 }
 
 nand_get_magic_long() {
-       dd if="$1" skip=$2 bs=4 count=1 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
+       (${3}cat "$1" | dd bs=4 "skip=${2:-0}" count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2> /dev/null
 }
 
 get_magic_long_tar() {
-       ( tar xf $1 $2 -O | dd bs=4 count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2> /dev/null
+       (tar xO${3}f "$1" "$2" | 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_magic_long $(nand_get_magic_long "$@")
 }
 
 identify_tar() {
-       identify_magic $(get_magic_long_tar "$1" "$2")
+       identify_magic_long $(get_magic_long_tar "$@")
+}
+
+identify_if_gzip() {
+       if [ "$(identify "$1")" = gzip ]; then echo -n z; fi
 }
 
 nand_restore_config() {
-       local ubidev=$( nand_find_ubi "$CI_UBIPART" )
+       local ubidev=$( nand_find_ubi "${CI_ROOT_UBIPART:-$CI_UBIPART}" )
        local ubivol="$( nand_find_volume $ubidev rootfs_data )"
        if [ ! "$ubivol" ]; then
                ubivol="$( nand_find_volume $ubidev "$CI_ROOTPART" )"
@@ -127,59 +107,104 @@ nand_restore_config() {
 }
 
 nand_remove_ubiblock() {
-       local ubivol=$1
-       local ubiblk=ubiblock${ubivol:3}
-       if [ -e /dev/$ubiblk ]; then
-               echo "removing $ubiblk"
-               if ! ubiblock -r /dev/$ubivol; then
+       local ubivol="$1"
+
+       local ubiblk="ubiblock${ubivol:3}"
+       if [ -e "/dev/$ubiblk" ]; then
+               umount "/dev/$ubiblk" 2>/dev/null && echo "unmounted /dev/$ubiblk" || :
+               if ! ubiblock -r "/dev/$ubivol"; then
                        echo "cannot remove $ubiblk"
                        return 1
                fi
        fi
 }
 
-nand_upgrade_prepare_ubi() {
-       local rootfs_length="$1"
-       local rootfs_type="$2"
-       local rootfs_data_max="$(fw_printenv -n rootfs_data_max 2>/dev/null)"
-       [ -n "$rootfs_data_max" ] && rootfs_data_max=$((rootfs_data_max))
-
-       local kernel_length="$3"
-       local has_env="${4:-0}"
-
-       [ -n "$rootfs_length" -o -n "$kernel_length" ] || return 1
+nand_attach_ubi() {
+       local ubipart="$1"
+       local has_env="${2:-0}"
 
-       local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
+       local mtdnum="$( find_mtd_index "$ubipart" )"
        if [ ! "$mtdnum" ]; then
-               echo "cannot find ubi mtd partition $CI_UBIPART"
+               >&2 echo "cannot find ubi mtd partition $ubipart"
                return 1
        fi
 
-       local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
+       local ubidev="$( nand_find_ubi "$ubipart" )"
        if [ ! "$ubidev" ]; then
-               ubiattach -m "$mtdnum"
-               ubidev="$( nand_find_ubi "$CI_UBIPART" )"
+               >&2 ubiattach -m "$mtdnum"
+               ubidev="$( nand_find_ubi "$ubipart" )"
 
                if [ ! "$ubidev" ]; then
-                       ubiformat /dev/mtd$mtdnum -y
-                       ubiattach -m "$mtdnum"
-                       ubidev="$( nand_find_ubi "$CI_UBIPART" )"
+                       >&2 ubiformat /dev/mtd$mtdnum -y
+                       >&2 ubiattach -m "$mtdnum"
+                       ubidev="$( nand_find_ubi "$ubipart" )"
 
                        if [ ! "$ubidev" ]; then
-                               echo "cannot attach ubi mtd partition $CI_UBIPART"
+                               >&2 echo "cannot attach ubi mtd partition $ubipart"
                                return 1
                        fi
 
                        if [ "$has_env" -gt 0 ]; then
-                               ubimkvol /dev/$ubidev -n 0 -N ubootenv -s 1MiB
-                               ubimkvol /dev/$ubidev -n 1 -N ubootenv2 -s 1MiB
+                               >&2 ubimkvol /dev/$ubidev -n 0 -N ubootenv -s 1MiB
+                               >&2 ubimkvol /dev/$ubidev -n 1 -N ubootenv2 -s 1MiB
                        fi
                fi
        fi
 
-       local kern_ubivol="$( nand_find_volume $ubidev "$CI_KERNPART" )"
-       local root_ubivol="$( nand_find_volume $ubidev "$CI_ROOTPART" )"
-       local data_ubivol="$( nand_find_volume $ubidev rootfs_data )"
+       echo "$ubidev"
+       return 0
+}
+
+nand_detach_ubi() {
+       local ubipart="$1"
+
+       local mtdnum="$( find_mtd_index "$ubipart" )"
+       if [ ! "$mtdnum" ]; then
+               echo "cannot find ubi mtd partition $ubipart"
+               return 1
+       fi
+
+       local ubidev="$( nand_find_ubi "$ubipart" )"
+       if [ "$ubidev" ]; then
+               for ubivol in $(find /dev -name "${ubidev}_*" -maxdepth 1 | sort); do
+                       ubivol="${ubivol:5}"
+                       nand_remove_ubiblock "$ubivol" || :
+                       umount "/dev/$ubivol" && echo "unmounted /dev/$ubivol" || :
+               done
+               if ! ubidetach -m "$mtdnum"; then
+                       echo "cannot detach ubi mtd partition $ubipart"
+                       return 1
+               fi
+       fi
+}
+
+nand_upgrade_prepare_ubi() {
+       local rootfs_length="$1"
+       local rootfs_type="$2"
+       local rootfs_data_max="$(fw_printenv -n rootfs_data_max 2> /dev/null)"
+       [ -n "$rootfs_data_max" ] && rootfs_data_max=$((rootfs_data_max))
+
+       local kernel_length="$3"
+       local has_env="${4:-0}"
+       local kern_ubidev
+       local root_ubidev
+
+       [ -n "$rootfs_length" -o -n "$kernel_length" ] || return 1
+
+       if [ -n "$CI_KERN_UBIPART" -a -n "$CI_ROOT_UBIPART" ]; then
+               kern_ubidev="$( nand_attach_ubi "$CI_KERN_UBIPART" "$has_env" )"
+               [ -n "$kern_ubidev" ] || return 1
+               root_ubidev="$( nand_attach_ubi "$CI_ROOT_UBIPART" )"
+               [ -n "$root_ubidev" ] || return 1
+       else
+               kern_ubidev="$( nand_attach_ubi "$CI_UBIPART" "$has_env" )"
+               [ -n "$kern_ubidev" ] || return 1
+               root_ubidev="$kern_ubidev"
+       fi
+
+       local kern_ubivol="$( nand_find_volume $kern_ubidev "$CI_KERNPART" )"
+       local root_ubivol="$( nand_find_volume $root_ubidev "$CI_ROOTPART" )"
+       local data_ubivol="$( nand_find_volume $root_ubidev rootfs_data )"
        [ "$root_ubivol" = "$kern_ubivol" ] && root_ubivol=
 
        # remove ubiblocks
@@ -188,13 +213,13 @@ nand_upgrade_prepare_ubi() {
        [ "$data_ubivol" ] && { nand_remove_ubiblock $data_ubivol || return 1; }
 
        # kill volumes
-       [ "$kern_ubivol" ] && ubirmvol /dev/$ubidev -N "$CI_KERNPART" || :
-       [ "$root_ubivol" ] && ubirmvol /dev/$ubidev -N "$CI_ROOTPART" || :
-       [ "$data_ubivol" ] && ubirmvol /dev/$ubidev -N rootfs_data || :
+       [ "$kern_ubivol" ] && ubirmvol /dev/$kern_ubidev -N "$CI_KERNPART" || :
+       [ "$root_ubivol" ] && ubirmvol /dev/$root_ubidev -N "$CI_ROOTPART" || :
+       [ "$data_ubivol" ] && ubirmvol /dev/$root_ubidev -N rootfs_data || :
 
        # create kernel vol
        if [ -n "$kernel_length" ]; then
-               if ! ubimkvol /dev/$ubidev -N "$CI_KERNPART" -s $kernel_length; then
+               if ! ubimkvol /dev/$kern_ubidev -N "$CI_KERNPART" -s $kernel_length; then
                        echo "cannot create kernel volume"
                        return 1;
                fi
@@ -208,7 +233,7 @@ nand_upgrade_prepare_ubi() {
                else
                        rootfs_size_param="-s $rootfs_length"
                fi
-               if ! ubimkvol /dev/$ubidev -N "$CI_ROOTPART" $rootfs_size_param; then
+               if ! ubimkvol /dev/$root_ubidev -N "$CI_ROOTPART" $rootfs_size_param; then
                        echo "cannot create rootfs volume"
                        return 1;
                fi
@@ -220,8 +245,8 @@ nand_upgrade_prepare_ubi() {
                if [ -n "$rootfs_data_max" ]; then
                        rootfs_data_size_param="-s $rootfs_data_max"
                fi
-               if ! ubimkvol /dev/$ubidev -N rootfs_data $rootfs_data_size_param; then
-                       if ! ubimkvol /dev/$ubidev -N rootfs_data -m; then
+               if ! ubimkvol /dev/$root_ubidev -N rootfs_data $rootfs_data_size_param; then
+                       if ! ubimkvol /dev/$root_ubidev -N rootfs_data -m; then
                                echo "cannot initialize rootfs_data volume"
                                return 1
                        fi
@@ -231,131 +256,201 @@ nand_upgrade_prepare_ubi() {
        return 0
 }
 
-nand_do_upgrade_success() {
-       local conf_tar="/tmp/sysupgrade.tgz"
-       if { [ ! -f "$conf_tar" ] || nand_restore_config "$conf_tar"; } && sync; then
-               echo "sysupgrade successful"
-       fi
-       umount -a
-       reboot -f
-}
-
-# Flash the UBI image to MTD partition
+# Write the UBI image to MTD ubi partition
 nand_upgrade_ubinized() {
        local ubi_file="$1"
-       local mtdnum="$(find_mtd_index "$CI_UBIPART")"
+       local gz="$2"
 
-       if [ ! "$mtdnum" ]; then
-               echo "cannot find mtd device $CI_UBIPART"
-               umount -a
-               reboot -f
-       fi
+       local ubi_length=$( (${gz}cat "$ubi_file" | wc -c) 2> /dev/null)
 
-       local mtddev="/dev/mtd${mtdnum}"
-       ubidetach -p "${mtddev}" || :
-       ubiformat "${mtddev}" -y -f "${ubi_file}"
-       ubiattach -p "${mtddev}"
+       nand_detach_ubi "$CI_UBIPART" || return 1
 
-       nand_do_upgrade_success
+       local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
+       ${gz}cat "$ubi_file" | ubiformat "/dev/mtd$mtdnum" -S "$ubi_length" -y -f - && ubiattach -m "$mtdnum"
 }
 
-# Write the UBIFS image to UBI volume
+# Write the UBIFS image to UBI rootfs volume
 nand_upgrade_ubifs() {
-       local rootfs_length=$( (cat $1 | wc -c) 2> /dev/null)
+       local ubifs_file="$1"
+       local gz="$2"
+
+       local ubifs_length=$( (${gz}cat "$ubifs_file" | wc -c) 2> /dev/null)
 
-       nand_upgrade_prepare_ubi "$rootfs_length" "ubifs" "" ""
+       nand_upgrade_prepare_ubi "$ubifs_length" "ubifs" "" "" || return 1
 
        local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
        local root_ubivol="$(nand_find_volume $ubidev "$CI_ROOTPART")"
-       ubiupdatevol /dev/$root_ubivol -s $rootfs_length $1
-
-       nand_do_upgrade_success
+       ${gz}cat "$ubifs_file" | ubiupdatevol /dev/$root_ubivol -s "$ubifs_length" -
 }
 
+# Write the FIT image to UBI kernel volume
 nand_upgrade_fit() {
        local fit_file="$1"
-       local fit_length="$(wc -c < "$fit_file")"
+       local gz="$2"
+
+       local fit_length=$( (${gz}cat "$fit_file" | wc -c) 2> /dev/null)
 
-       nand_upgrade_prepare_ubi "" "" "$fit_length" "1"
+       nand_upgrade_prepare_ubi "" "" "$fit_length" "1" || return 1
 
        local fit_ubidev="$(nand_find_ubi "$CI_UBIPART")"
        local fit_ubivol="$(nand_find_volume $fit_ubidev "$CI_KERNPART")"
-       ubiupdatevol /dev/$fit_ubivol -s $fit_length $fit_file
-
-       nand_do_upgrade_success
+       ${gz}cat "$fit_file" | ubiupdatevol /dev/$fit_ubivol -s "$fit_length" -
 }
 
+# Write images in the TAR file to MTD partitions and/or UBI volumes as required
 nand_upgrade_tar() {
        local tar_file="$1"
+       local gz="$2"
+       local jffs2_markers="${CI_JFFS2_CLEAN_MARKERS:-0}"
 
-       local board_dir="$(tar tf "$tar_file" | grep -m 1 '^sysupgrade-.*/$')"
+       # WARNING: This fails if tar contains more than one 'sysupgrade-*' directory.
+       local board_dir="$(tar t${gz}f "$tar_file" | grep -m 1 '^sysupgrade-.*/$')"
        board_dir="${board_dir%/}"
 
        local kernel_mtd kernel_length
        if [ "$CI_KERNPART" != "none" ]; then
                kernel_mtd="$(find_mtd_index "$CI_KERNPART")"
-               kernel_length=$( (tar xf "$tar_file" "$board_dir/kernel" -O | wc -c) 2> /dev/null)
+               kernel_length=$( (tar xO${gz}f "$tar_file" "$board_dir/kernel" | wc -c) 2> /dev/null)
                [ "$kernel_length" = 0 ] && kernel_length=
        fi
-       local rootfs_length=$( (tar xf "$tar_file" "$board_dir/root" -O | wc -c) 2> /dev/null)
+       local rootfs_length=$( (tar xO${gz}f "$tar_file" "$board_dir/root" | wc -c) 2> /dev/null)
        [ "$rootfs_length" = 0 ] && rootfs_length=
        local rootfs_type
-       [ "$rootfs_length" ] && rootfs_type="$(identify_tar "$tar_file" "$board_dir/root")"
+       [ "$rootfs_length" ] && rootfs_type="$(identify_tar "$tar_file" "$board_dir/root" "$gz")"
 
        local ubi_kernel_length
        if [ "$kernel_length" ]; then
                if [ "$kernel_mtd" ]; then
-                       mtd erase "$CI_KERNPART"
+                       # On some devices, the raw kernel and ubi partitions overlap.
+                       # These devices brick if the kernel partition is erased.
+                       # Hence only invalidate kernel for now.
+                       dd if=/dev/zero bs=4096 count=1 2> /dev/null | \
+                               mtd write - "$CI_KERNPART"
                else
                        ubi_kernel_length="$kernel_length"
                fi
        fi
+
        local has_env=0
-       nand_upgrade_prepare_ubi "$rootfs_length" "$rootfs_type" "$ubi_kernel_length" "$has_env"
+       nand_upgrade_prepare_ubi "$rootfs_length" "$rootfs_type" "$ubi_kernel_length" "$has_env" || return 1
 
-       local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
        if [ "$rootfs_length" ]; then
+               local ubidev="$( nand_find_ubi "${CI_ROOT_UBIPART:-$CI_UBIPART}" )"
                local root_ubivol="$( nand_find_volume $ubidev "$CI_ROOTPART" )"
-               tar xf "$tar_file" "$board_dir/root" -O | \
-                       ubiupdatevol /dev/$root_ubivol -s $rootfs_length -
+               tar xO${gz}f "$tar_file" "$board_dir/root" | \
+                       ubiupdatevol /dev/$root_ubivol -s "$rootfs_length" -
        fi
        if [ "$kernel_length" ]; then
                if [ "$kernel_mtd" ]; then
-                       tar xf "$tar_file" "$board_dir/kernel" -O | \
-                               mtd -n write - "$CI_KERNPART"
+                       if [ "$jffs2_markers" = 1 ]; then
+                               flash_erase -j "/dev/mtd${kernel_mtd}" 0 0
+                               tar xO${gz}f "$tar_file" "$board_dir/kernel" | \
+                                       nandwrite "/dev/mtd${kernel_mtd}" -
+                       else
+                               tar xO${gz}f "$tar_file" "$board_dir/kernel" | \
+                                       mtd write - "$CI_KERNPART"
+                       fi
                else
+                       local ubidev="$( nand_find_ubi "${CI_KERN_UBIPART:-$CI_UBIPART}" )"
                        local kern_ubivol="$( nand_find_volume $ubidev "$CI_KERNPART" )"
-                       tar xf "$tar_file" "$board_dir/kernel" -O | \
-                               ubiupdatevol /dev/$kern_ubivol -s $kernel_length -
+                       tar xO${gz}f "$tar_file" "$board_dir/kernel" | \
+                               ubiupdatevol /dev/$kern_ubivol -s "$kernel_length" -
                fi
        fi
 
-       nand_do_upgrade_success
+       return 0
 }
 
-# Recognize type of passed file and start the upgrade process
-nand_do_upgrade() {
-       local file_type=$(identify "$1")
+nand_verify_if_gzip_file() {
+       local file="$1"
+       local gz="$2"
+
+       if [ "$gz" = z ]; then
+               echo "verifying compressed sysupgrade file integrity"
+               if ! gzip -t "$file"; then
+                       echo "corrupted compressed sysupgrade file"
+                       return 1
+               fi
+       fi
+}
+
+nand_verify_tar_file() {
+       local file="$1"
+       local gz="$2"
+
+       echo "verifying sysupgrade tar file integrity"
+       if ! tar xO${gz}f "$file" > /dev/null; then
+               echo "corrupted sysupgrade tar file"
+               return 1
+       fi
+}
+
+nand_do_flash_file() {
+       local file="$1"
+
+       local gz="$(identify_if_gzip "$file")"
+       local file_type="$(identify "$file" "" "$gz")"
 
        [ ! "$(find_mtd_index "$CI_UBIPART")" ] && CI_UBIPART=rootfs
 
-       sync
        case "$file_type" in
-               "fit")          nand_upgrade_fit "$1";;
-               "ubi")          nand_upgrade_ubinized "$1";;
-               "ubifs")        nand_upgrade_ubifs "$1";;
-               *)              nand_upgrade_tar "$1";;
+               "fit")
+                       nand_verify_if_gzip_file "$file" "$gz" || return 1
+                       nand_upgrade_fit "$file" "$gz"
+                       ;;
+               "ubi")
+                       nand_verify_if_gzip_file "$file" "$gz" || return 1
+                       nand_upgrade_ubinized "$file" "$gz"
+                       ;;
+               "ubifs")
+                       nand_verify_if_gzip_file "$file" "$gz" || return 1
+                       nand_upgrade_ubifs "$file" "$gz"
+                       ;;
+               *)
+                       nand_verify_tar_file "$file" "$gz" || return 1
+                       nand_upgrade_tar "$file" "$gz"
+                       ;;
        esac
 }
 
-# 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)
+nand_do_restore_config() {
+       local conf_tar="/tmp/sysupgrade.tgz"
+       [ ! -f "$conf_tar" ] || nand_restore_config "$conf_tar"
+}
+
+# Recognize type of passed file and start the upgrade process
+nand_do_upgrade() {
+       local file="$1"
+
+       sync
+       nand_do_flash_file "$file" && nand_do_upgrade_success
+       nand_do_upgrade_failed
+}
+
+nand_do_upgrade_success() {
+       if nand_do_restore_config && sync; then
+               echo "sysupgrade successful"
+               umount -a
+               reboot -f
+       fi
+       nand_do_upgrade_failed
+}
+
+nand_do_upgrade_failed() {
+       sync
+       echo "sysupgrade failed"
+       # Should we reboot or bring up some failsafe mode instead?
+       umount -a
+       reboot -f
+}
+
+# Check if passed file is a valid one for NAND sysupgrade.
+# Currently it accepts 4 types of files:
+# 1) UBI: a ubinized image containing required UBI volumes.
+# 2) UBIFS: a UBIFS rootfs volume image.
+# 3) FIT: a FIT image containing kernel and rootfs.
+# 4) TAR: an archive that includes directory "sysupgrade-${BOARD_NAME}" containing
+#         a non-empty "CONTROL" file and required partition and/or volume images.
 #
 # You usually want to call this function in platform_check_image.
 #
@@ -363,14 +458,25 @@ nand_do_upgrade() {
 # $(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)"
+       local file="$2"
 
-       [ "$control_length" = 0 -a "$file_type" != "ubi" -a "$file_type" != "ubifs" -a "$file_type" != "fit" ] && {
-               echo "Invalid sysupgrade file."
-               return 1
-       }
+       local gz="$(identify_if_gzip "$file")"
+       local file_type="$(identify "$file" "" "$gz")"
+       local control_length=$( (tar xO${gz}f "$file" "sysupgrade-${board_name//,/_}/CONTROL" | wc -c) 2> /dev/null)
+
+       if [ "$control_length" = 0 ]; then
+               control_length=$( (tar xO${gz}f "$file" "sysupgrade-${board_name//_/,}/CONTROL" | wc -c) 2> /dev/null)
+       fi
+
+       if [ "$control_length" != 0 ]; then
+               nand_verify_tar_file "$file" "$gz" || return 1
+       else
+               nand_verify_if_gzip_file "$file" "$gz" || return 1
+               if [ "$file_type" != "fit" -a "$file_type" != "ubi" -a "$file_type" != "ubifs" ]; then
+                       echo "invalid sysupgrade file"
+                       return 1
+               fi
+       fi
 
        return 0
 }