Add {system encryptionkey}

bin/version

@@ -17,6 +17,7 @@ Humax [system model] Fox T2 ([system hostname])
   Custom firmware version: $modver
   Web interface version: [system pkgver webif]
   Serial Number: [system serialno]
+  Encryption Key: [system encryptionkey]
   Last Boot Reason: [system lastbootreason]
 "
 

webif/include/modversion.jim

@@ -19,6 +19,9 @@ puts "<br>Humax Version: $fhtcpversion (kernel $kernelver)"
 puts "<br>Loader Version: [system loaderver]"
 puts "<br>System ID: [system systemid]"
 puts "<br>Serial Number: [system serialno]"
+if {$mws::pagetag eq "Diagnostics"} {
+	puts "<br>Encryption Key: [system encryptionkey]"
+}
 puts "<br>Last Boot Reason: [system lastbootreason]"
 
 puts "</span>"

webif/lib/system.class

@@ -144,6 +144,18 @@ proc {system serialno} {} {{serial ""}} {
 	return $serial
 }
 
+proc {system encryptionkey} {} {{key ""}} {
+	if {$key ne ""} { return $key }
+	set fd [open /dev/mtd3 r]
+	$fd seek 0xc8c00
+	set bytes [$fd read 6]
+	$fd seek 0xcb800
+	append bytes [$fd read 10]
+	$fd close
+	binary scan $bytes H* key
+	return $key
+}
+
 proc {system loaderver} {} {{ver ""}} {
 	if {$ver ne ""} { return $ver }
 	set fd [open /dev/mtd3 r]