304 lines
6.7 KiB
Bash
304 lines
6.7 KiB
Bash
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#!/bin/sh
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# Copyright (C) 2014 OpenWrt.org
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#
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. /lib/functions.sh
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# combined-image uses 64k blocks
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CI_BLKSZ=65536
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# 'data' partition on NAND contains UBI
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CI_UBIPART="ubi"
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nand_find_volume() {
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local ubidevdir ubivoldir
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ubidevdir="/sys/devices/virtual/ubi/$1"
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[ ! -d "$ubidevdir" ] && return 1
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for ubivoldir in $ubidevdir/${1}_*; do
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[ ! -d "$ubivoldir" ] && continue
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if [ "$( cat $ubivoldir/name )" = "$2" ]; then
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basename $ubivoldir
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return 0
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fi
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done
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}
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nand_find_ubi() {
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local ubidevdir ubidev mtdnum
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mtdnum="$( find_mtd_index $1 )"
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[ ! "$mtdnum" ] && return 1
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for ubidevdir in /sys/devices/virtual/ubi/ubi*; do
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[ ! -d "$ubidevdir" ] && continue
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cmtdnum="$( cat $ubidevdir/mtd_num )"
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[ ! "$mtdnum" ] && continue
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if [ "$mtdnum" = "$cmtdnum" ]; then
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ubidev=$( basename $ubidevdir )
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echo $ubidev
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return 0
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fi
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done
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}
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nand_restore_config() {
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sync
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local ubidev=$( nand_find_ubi $CI_UBIPART )
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local ubivol="$( nand_find_volume $ubidev rootfs_data )"
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[ ! "$ubivol" ] &&
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ubivol="$( nand_find_volume $ubidev rootfs )"
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mkdir /tmp/new_root
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if ! mount -t ubifs /dev/$ubivol /tmp/new_root; then
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echo "mounting ubifs $ubivol failed"
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rmdir /tmp/new_root
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return 1
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fi
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mv "$1" "/tmp/new_root/sysupgrade.tgz"
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umount /tmp/new_root
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sync
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rmdir /tmp/new_root
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}
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nand_upgrade_ubinized() {
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local upgrade_image="$1"
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local conf_tar="$2"
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local save_config="$3"
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local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
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if [ ! "$mtdnum" ]; then
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echo "cannot find mtd device $CI_UBIPART"
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return 1;
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fi
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local mtddev="/dev/mtd${mtdnum}"
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ubidetach -p "${mtddev}" || true
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sync
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ubiformat "${mtddev}" -y -f "$upgrade_image"
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ubiattach -p "${mtddev}"
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sync
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if [ -f "$conf_tar" -a "$save_config" -eq 1 ]; then
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nand_restore_config "$conf_tar"
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fi
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return 0;
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}
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# get the first 4 bytes (magic) of a given file starting at offset in hex format
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get_magic_long_at() {
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dd if="$2" skip=$1 bs=$CI_BLKSZ count=1 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
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}
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identify() {
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local block;
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local magic=$( get_magic_long_at ${2:-0} "$1" )
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case "$magic" in
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"55424923")
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echo "ubi"
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;;
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"31181006")
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echo "ubifs"
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;;
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"68737173")
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echo "squashfs"
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;;
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"d00dfeed")
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echo "fit"
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;;
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"4349"*)
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echo "combined"
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;;
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*)
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echo "unknown $magic"
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;;
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esac
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}
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nand_upgrade_combined_ubi() {
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local kernel_image="$1"
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local kernel_length=0
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local rootfs_image="$2"
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local rootfs_length=`ls -la $rootfs_image | awk '{ print $5}')`
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local conf_tar="$3"
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local has_env="${4:-0}"
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local root_fs="$( identify "$rootfs_image" )"
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local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
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local has_kernel=0
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[ -z "$kernel_image" ] || {
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has_kernel=1
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kernel_length=`ls -la $kernel_image | awk '{ print $5}')`
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echo "kernel length $kernel_length"
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}
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[ "$has_kernel" = 0 ] || echo "kernel is inside ubi"
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echo "rootfs type $root_fs, length $rootfs_length"
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if [ ! "$mtdnum" ]; then
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echo "cannot find ubi mtd partition $CI_UBIPART"
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return 1
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fi
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local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
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if [ ! "$ubidev" ]; then
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ubiattach -m "$mtdnum"
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sync
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ubidev="$( nand_find_ubi "$CI_UBIPART" )"
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fi
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if [ ! "$ubidev" ]; then
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ubiformat /dev/mtd$mtdnum -y
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ubiattach -m "$mtdnum"
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sync
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ubidev="$( nand_find_ubi "$CI_UBIPART" )"
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[ -z "$has_env" ] || {
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ubimkvol /dev/$ubidev -n 0 -N ubootenv -s 1MiB
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ubimkvol /dev/$ubidev -n 1 -N ubootenv2 -s 1MiB
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}
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fi
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local kern_ubivol="$( nand_find_volume $ubidev kernel )"
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local root_ubivol="$( nand_find_volume $ubidev rootfs )"
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local data_ubivol="$( nand_find_volume $ubidev rootfs_data )"
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# remove ubiblock device of rootfs
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local root_ubiblk="ubiblock${root_ubivol:3}"
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if [ "$root_ubivol" -a -e "/dev/$root_ubiblk" ]; then
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echo "removing $root_ubiblk"
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if ! ubiblock -r /dev/$root_ubivol; then
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echo "cannot remove $root_ubiblk"
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return 1;
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fi
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fi
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# kill volumes
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if [ "$kern_ubivol" ]; then
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ubirmvol /dev/$ubidev -N kernel || true
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fi
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if [ "$root_ubivol" ]; then
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ubirmvol /dev/$ubidev -N rootfs || true
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fi
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if [ "$data_ubivol" ]; then
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ubirmvol /dev/$ubidev -N rootfs_data || true
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fi
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# update kernel
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if [ "$has_kernel" = "1" ]; then
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if ! ubimkvol /dev/$ubidev -N kernel -s $kernel_length; then
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echo "cannot create kernel volume"
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return 1;
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fi
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fi
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# update rootfs
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local root_size_param
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if [ "$root_fs" = "ubifs" ]; then
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root_size_param="-m"
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else
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root_size_param="-s $rootfs_length"
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fi
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if ! ubimkvol /dev/$ubidev -N rootfs $root_size_param; then
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echo "cannot create rootfs volume"
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return 1;
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fi
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# create rootfs_data for non-ubifs rootfs
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if [ "$root_fs" != "ubifs" ]; then
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if ! ubimkvol /dev/$ubidev -N rootfs_data -m; then
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echo "cannot initialize rootfs_data volume"
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return 1
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fi
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fi
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sync
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if [ "$has_kernel" = "1" ]; then
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local kern_ubivol="$( nand_find_volume $ubidev kernel )"
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ubiupdatevol /dev/$kern_ubivol -s $kernel_length $kernel_image
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fi
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local root_ubivol="$( nand_find_volume $ubidev rootfs )"
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ubiupdatevol /dev/$root_ubivol -s $rootfs_length $rootfs_image
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if [ -f "$conf_tar" ]; then
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nand_restore_config "$conf_tar"
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fi
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echo "sysupgrade successfull"
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return 0
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}
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nand_do_upgrade_stage1() {
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local board_name="$1"
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local tar_file="$2"
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local kernel_file=""
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local kernel_file=""
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tar xzf $tar_file -C /tmp/
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[ -f "/tmp/sysupgrade-$board_name/CONTROL" ] || {
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echo "failed to find /tmp/sysupgrade-$board_name/CONTROL"
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return 1
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}
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kernel_file=/tmp/sysupgrade-$board_name/kernel
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[ -f "$kernel_file" ] || {
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echo "$kernel_file is missing"
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return 1
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}
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rootfs_file=/tmp/sysupgrade-$board_name/root
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[ -f "$rootfs_file" ] || {
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echo "$rootfs_file is missing"
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return 1
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}
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echo -n /tmp/sysupgrade-$board_name > /tmp/sysupgrade-nand-folder
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cp /sbin/upgraded /tmp/
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return 0
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}
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nand_do_upgrade_stage2() {
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rootfs_file=$1/root
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kernel_file=$1/kernel
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config_file=$1/config
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[ -f $config_file ] || config_file=""
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. $1/CONTROL
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[ "$UBI_KERNEL" = "1" ] || {
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mtd write $kernel_file kernel
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kernel_file=""
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}
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nand_upgrade_combined_ubi "$kernel_file" "$rootfs_file" "$conf_tar" "$UBI_ENV"
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reboot -f
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}
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nand_do_upgrade() {
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[ $1 = "nand" ] && {
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[ -d "$2" ] && {
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touch /tmp/sysupgrade
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killall -9 telnetd
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killall -9 dropbear
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killall -9 ash
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kill_remaining TERM
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sleep 3
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kill_remaining KILL
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sleep 1
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if [ -n "$(rootfs_type)" ]; then
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v "Switching to ramdisk..."
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run_ramfs ". /lib/functions.sh; include /lib/upgrade; nand_do_upgrade_stage2 $2"
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else
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nand_do_upgrade_stage2 $2
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fi
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return 0
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}
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echo "Nand upgrade failed"
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exit 1
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}
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}
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nand_upgrade_stage1() {
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[ -f /tmp/sysupgrade-nand-folder ] && {
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folder="$(cat /tmp/sysupgrade-nand-folder)"
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[ "$SAVE_CONFIG" = 1 -a -f "$CONF_TAR" ] &&
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cp $CONF_TAR $folder/config
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ubus call system nandupgrade "{\"folder\": \"$folder\" }"
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exit 0
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}
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}
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append sysupgrade_pre_upgrade nand_upgrade_stage1
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