add RUA asn.1 syntax from 3GPP TS 25.468 V12.1.0 (2014-12)
diff --git a/asn1/rua/RUA-CommonDataTypes.asn b/asn1/rua/RUA-CommonDataTypes.asn
new file mode 100644
index 0000000..da7ed22
--- /dev/null
+++ b/asn1/rua/RUA-CommonDataTypes.asn
@@ -0,0 +1,46 @@
+-- **************************************************************
+--
+-- Common definitions
+--
+-- **************************************************************
+
+RUA-CommonDataTypes {
+itu-t (0) identified-organization (4) etsi (0) mobileDomain (0)
+umts-Access (20) modules (3) rua(5) version1 (1) rUA-CommonDataTypes (3) }
+
+DEFINITIONS AUTOMATIC TAGS ::=
+
+BEGIN
+
+-- **************************************************************
+--
+-- Extension constants
+--
+-- **************************************************************
+
+maxPrivateIEs INTEGER ::= 65535
+maxProtocolExtensions INTEGER ::= 65535
+maxProtocolIEs INTEGER ::= 65535
+
+-- **************************************************************
+--
+-- Common Data Types
+--
+-- **************************************************************
+Criticality ::= ENUMERATED { reject, ignore, notify }
+
+Presence ::= ENUMERATED { optional, conditional, mandatory }
+
+
+ProcedureCode ::= INTEGER (0..255)
+
+PrivateIE-ID ::= CHOICE {
+ local INTEGER (0..65535),
+ global OBJECT IDENTIFIER
+}
+
+ProtocolIE-ID ::= INTEGER (0..maxProtocolIEs)
+
+TriggeringMessage ::= ENUMERATED { initiating-message, successful-outcome, unsuccessful-outcome }
+
+END