OpenWrt – Rev 1

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#!/bin/sh
#
# Copyright 2015-2018 Traverse Technologies
#
platform_do_upgrade_traverse_nandubi() {
        bootsys=$(fw_printenv bootsys | awk -F= '{{print $2}}')
        newbootsys=2
        if [ "$bootsys" -eq "2" ]; then
                newbootsys=1
        fi
        mkdir -p /tmp/image
        cd /tmp/image
        get_image "$1" > image.tar
        ls -la image.tar
        files=$(tar -tf image.tar)
        echo "Files in image:"
        echo $files
        for f in $files
        do
                part_name=$(echo $f | awk -F '/' '{{print $2}}')
                if [ -z "$part_name" ] || [ "$part_name" = "CONTROL" ]; then
                        continue
                fi

                [ "$part_name" = "root" ] && part_name="rootfs"

                volume=$part_name
                if [ "$part_name" = "kernel" ] || [ "$part_name" = "rootfs" ]; then
                        volume="${part_name}${newbootsys}"
                fi
                volume_id=$(ubinfo -d 0 --name $volume | awk '/Volume ID/ {print $3}')
                file_size=$(tar -tvf image.tar $f | awk '{{print $3}}')
                echo "$f size $file_size"
                tar -xOf image.tar $f | ubiupdatevol -s $file_size /dev/ubi0_$volume_id -
                
                echo "$volume upgraded"
        done
        fw_setenv bootsys $newbootsys
        echo "Upgrade complete"
}
platform_copy_config() {
        bootsys=$(fw_printenv bootsys | awk -F= '{{print $2}}')
        rootvol=rootfs$bootsys
        volume_id=$(ubinfo -d 0 --name $rootvol | awk '/Volume ID/ {print $3}')
        mkdir -p /mnt/oldsys
        mount -t ubifs -o rw,noatime /dev/ubi0_$volume_id /mnt/oldsys
        cp -af "$CONF_TAR" /mnt/oldsys
        umount /mnt/oldsys
}
platform_check_image() {
        local board=$(board_name)

        case "$board" in
        traverse,ls1043v | \
        traverse,ls1043s | \
        traverse,five64)
                local tar_file="$1"
                local kernel_length=$( (tar xf $tar_file sysupgrade-traverse-five64/kernel -O | wc -c) 2> /dev/null)
                local rootfs_length=$( (tar xf $tar_file sysupgrade-traverse-five64/root -O | wc -c) 2> /dev/null)
                [ "$kernel_length" -eq 0 -o "$rootfs_length" -eq 0 ] && {
                        echo "The upgrade image is corrupt."
                        return 1
                }
                return 0
                ;;
        *)
                echo "Sysupgrade is not currently supported on $board"
                ;;
        esac

        return 1
}
platform_do_upgrade() {
        local board=$(board_name)

        case "$board" in
        traverse,ls1043v | \
        traverse,ls1043s | \
        traverse,five64)
                platform_do_upgrade_traverse_nandubi "$ARGV"
                ;;
        *)
                echo "Sysupgrade is not currently supported on $board"
                ;;
        esac
}
platform_pre_upgrade() {
        # Force the creation of fw_printenv.lock
        mkdir -p /var/lock
        touch /var/lock/fw_printenv.lock
        
        export RAMFS_COPY_BIN="/usr/sbin/fw_printenv /usr/sbin/fw_setenv /usr/sbin/ubinfo /bin/echo ${RAMFS_COPY_BIN}"
        export RAMFS_COPY_DATA="/etc/fw_env.config /var/lock/fw_printenv.lock ${RAMFS_COPY_DATA}"
}