Initial commit

scripts/ubinize-image.sh

@@ -0,0 +1,139 @@
+#!/bin/sh
+
+part=""
+ubootenv=""
+ubinize_param=""
+kernel=""
+rootfs=""
+outfile=""
+err=""
+
+get_magic_word() {
+	dd if=$1 bs=2 count=1 2>/dev/null | od -A n -N 2 -t x1 | tr -d ' '
+}
+
+is_ubifs() {
+	if [ "$( get_magic_word $1 )" = "3118" ]; then
+		echo "1"
+	fi
+}
+
+ubivol() {
+	volid=$1
+	name=$2
+	image=$3
+	autoresize=$4
+	size="$5"
+	echo "[$name]"
+	echo "mode=ubi"
+	echo "vol_id=$volid"
+	echo "vol_type=dynamic"
+	echo "vol_name=$name"
+	if [ "$image" ]; then
+		echo "image=$image"
+		[ -n "$size" ] && echo "vol_size=${size}MiB"
+	else
+		echo "vol_size=1MiB"
+	fi
+	if [ "$autoresize" ]; then
+		echo "vol_flags=autoresize"
+	fi
+}
+
+ubilayout() {
+	local vol_id=0
+	local root_is_ubifs="$( is_ubifs "$2" )"
+	if [ "$1" = "ubootenv" ]; then
+		ubivol $vol_id ubootenv
+		vol_id=$(( $vol_id + 1 ))
+		ubivol $vol_id ubootenv2
+		vol_id=$(( $vol_id + 1 ))
+	fi
+	for part in $parts; do
+		name="${part%%=*}"
+		prev="$part"
+		part="${part#*=}"
+		[ "$prev" = "$part" ] && part=
+
+		image="${part%%=*}"
+		prev="$part"
+		part="${part#*=}"
+		[ "$prev" = "$part" ] && part=
+
+		size="$part"
+
+		ubivol $vol_id "$name" "$image" "" "$size"
+		vol_id=$(( $vol_id + 1 ))
+	done
+	if [ "$3" ]; then
+		ubivol $vol_id kernel "$3"
+		vol_id=$(( $vol_id + 1 ))
+	fi
+	ubivol $vol_id rootfs "$2" $root_is_ubifs
+	vol_id=$(( $vol_id + 1 ))
+	[ "$root_is_ubifs" ] || ubivol $vol_id rootfs_data "" 1
+}
+
+while [ "$1" ]; do
+	case "$1" in
+	"--uboot-env")
+		ubootenv="ubootenv"
+		shift
+		continue
+		;;
+	"--kernel")
+		kernel="$2"
+		shift
+		shift
+		continue
+		;;
+	"--part")
+		parts="$parts $2"
+		shift
+		shift
+		continue
+		;;
+	"-"*)
+		ubinize_param="$@"
+		break
+		;;
+	*)
+		if [ ! "$rootfs" ]; then
+			rootfs=$1
+			shift
+			continue
+		fi
+		if [ ! "$outfile" ]; then
+			outfile=$1
+			shift
+			continue
+		fi
+		;;
+	esac
+done
+
+if [ ! -r "$rootfs" -o ! -r "$kernel" -a ! "$outfile" ]; then
+	echo "syntax: $0 [--uboot-env] [--part <name>=<file>] [--kernel kernelimage] rootfs out [ubinize opts]"
+	exit 1
+fi
+
+ubinize="$( which ubinize )"
+if [ ! -x "$ubinize" ]; then
+	echo "ubinize tool not found or not usable"
+	exit 1
+fi
+
+ubinizecfg="$( mktemp 2> /dev/null )"
+if [ -z "$ubinizecfg" ]; then
+	# try OSX signature
+	ubinizecfg="$( mktemp -t 'ubitmp' )"
+fi
+ubilayout "$ubootenv" "$rootfs" "$kernel" > "$ubinizecfg"
+
+cat "$ubinizecfg"
+ubinize -o "$outfile" $ubinize_param "$ubinizecfg"
+err="$?"
+[ ! -e "$outfile" ] && err=2
+rm "$ubinizecfg"
+
+exit $err