OpenWrt – Rev 1

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KERNEL_IMG="openwrt-au1000-au1500-vmlinux.bin"
ROOTFS_IMG="openwrt-au1000-au1500-root.fs"

platform_check_image() {
        [ "$#" -gt 1 ] && return 1
        case "$(get_magic_word "$1")" in
                6f70)
                        ( get_image "$1" | tar -tf - $KERNEL_IMG >/dev/null && \
                          get_image "$1" | tar -tf - $ROOTFS_IMG >/dev/null) || {
                                echo "Invalid image contents"
                                return 1
                        }
                        return 0;;
                *)
                        echo "Invalid image type"
                        return 1;;
        esac
}

platform_do_upgrade() {
        sync
        local conf=""
        [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && conf="-j $CONF_TAR"
        get_image "$1" | tar -Oxvf - $KERNEL_IMG | mtd write - "kernel"
        get_image "$1" | tar -Oxvf - $ROOTFS_IMG | mtd $conf write - "rootfs"
}