From a8cc3f324dba617551bb091c7cf4dcde1c9eea17 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Sun, 12 May 2019 00:58:30 +0200
Subject: WiP: update script
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Signed-off-by: Bjørn Mork <bjorn@mork.no>
---
 update.sh | 94 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 update.sh

diff --git a/update.sh b/update.sh
new file mode 100644
index 0000000..dc8faca
--- /dev/null
+++ b/update.sh
@@ -0,0 +1,94 @@
+#!/bin/sh
+VENDOR="Alphanetworks"
+HWBOARD="r8000lh"
+HWVERSION="1.0.0"
+OEM="D-Link"
+MODEL="DCS-8000LH"
+PRODUCT="Internet Camera"
+VERSION="1.0.0-9999"
+PACKAGE=""
+WIRELESS_MODULE="RTL8723BU"
+DESCRIPT="An alternative opt."
+
+showBrief() {
+	echo -n "\
+
+This updates the userdata partition only.
+It will update following, ...
+	1. /opt file system
+"
+}
+
+MD5SUM="acf7f6c0881b64f53018a26dd3e3b8c0"
+
+MECH_SIGN="QPAT"
+MECH_VERSION="1.0"
+MECH_APP="doUpdate"
+
+showUsage() {
+	echo "Usage: $0 [ info | brief | exam | update ]" 1>&2
+}
+
+exam() {
+	rm -f /tmp/update/md5
+	for i in $(cat /tmp/update/certificate.info | grep Contents | cut -d":" -f2); do
+		echo $(tar xOf "$1" $i.aes | openssl aes-128-cbc -k `cat /tmp/update/aes.key` -nosalt -d | md5sum - | cut -d' ' -f1 ) >> /tmp/update/md5
+	done
+	md5sum=$(md5sum /tmp/update/md5 | cut -d' ' -f1)
+	[ "$MD5SUM" = "$md5sum" ] && return 0
+	
+	echo "md5sum failed" 1>&2
+	return 1
+}
+
+self="$0"
+action=$1
+enc_bin=$2
+end=$3
+
+if [ "$action" = "" ] || [ "$end" != "" ]; then
+	showUsage
+	exit 1
+fi
+
+if [ "$action" = "info" ]; then
+	echo -n "\
+MECH_SIGN=\"$MECH_SIGN\"
+MECH_VERSION=\"$MECH_VERSION\"
+MECH_APP=\"$MECH_APP\"
+HWBOARD=\"$HWBOARD\"
+HWVERSION=\"$HWVERSION\"
+MODEL=\"$MODEL\"
+PRODUCT=\"$PRODUCT\"
+OEM=\"$OEM\"
+VENDOR=\"$VENDOR\"
+VERSION=\"$VERSION\"
+DESCRIPT=\"$DESCRIPT\"
+PACKAGE=\"$PACKAGE\"
+"
+	exit 0
+fi
+
+if [ "$action" = "brief" ]; then
+	showBrief
+	exit 0
+fi
+
+if [ "$action" = "exam" ]; then
+	exam "$enc_bin" || exit 1
+	exit 0
+fi
+
+if [ "$action" = "update" ]; then
+	/etc/rc.d/init.d/services.sh stop > /dev/null 2> /dev/null
+	exam "$enc_bin" || { /etc/rc.d/init.d/services.sh start > /dev/null 2> /dev/null && exit 1; }
+
+	userdata="/dev/$(grep '"userdata"' /proc/mtd |cut -f1 -d:)"
+	tar xOf "$enc_bin" update.aes | openssl aes-128-cbc -k `cat /tmp/update/aes.key` -nosalt -d | dd of="$userdata" > /dev/null 2> /dev/null || exit 1
+
+	{(sleep 5 && reboot) > /dev/null 2> /dev/null &}
+	exit 0
+fi
+
+# unknown action
+showUsage && exit 1
-- 
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