generate ASN.1 structures for each message withotu iformation object class

this is done semi-automatically using the asn1msgs.pl script.
diff --git a/asn1/asn1msgs.pl b/asn1/asn1msgs.pl
new file mode 100755
index 0000000..4b07a3b
--- /dev/null
+++ b/asn1/asn1msgs.pl
@@ -0,0 +1,35 @@
+#!/usr/bin/perl -w
+#use strict;
+
+# small script to extract the types used in elementary procedures
+# {HNBAP,RUA,RANAP}-PDU-Descriptions.asn and print them in an ASN.1
+# format that will trigger asn1c to generate associated structures
+#
+# Usage: ./asn1enum.pl < HNBAP-PDU-Descriptions.asn
+
+my $l;
+my @a;
+
+while ($l = <STDIN>) {
+	chomp($l);
+	if ($l =~ /^\s*(\S+\s*\S+)\s+(\S+)\s*$/) {
+		if ($1 eq 'INITIATING MESSAGE' ||
+		    $1 eq 'SUCCESSFUL OUTCOME' ||
+		    $1 eq 'UNSUCCESSFUL OUTCOME' ||
+	    	    $1 eq 'OUTCOME') {
+			push(@a, $2);
+		}
+	}
+}
+
+foreach my $k (@a) {
+	my $lk = $k;
+	my $firstchar = substr($lk, 0, 1);
+	if ($firstchar =~ /^[A-Z]/) {
+		substr($lk, 0, 1, lc($firstchar));
+	}
+	printf("%s ::= SEQUENCE {\n", $k);
+	printf("    %s-ies SEQUENCE (SIZE (0..maxProtocolIEs)) OF IE,\n", $lk);
+	printf("    ...\n");
+	printf("}\n\n");
+}