Move MGCP_Types.ttcn to library; extract MGCP_Templates.ttcn to library
diff --git a/library/MGCP_Templates.ttcn b/library/MGCP_Templates.ttcn
new file mode 100644
index 0000000..f78bfc7
--- /dev/null
+++ b/library/MGCP_Templates.ttcn
@@ -0,0 +1,188 @@
+module MGCP_Templates {
+
+ import from MGCP_Types all;
+ import from SDP_Types all;
+
+ function f_mgcp_par_append(inout template MgcpParameterList list, template MgcpParameter par) {
+ var integer len := lengthof(list);
+ list[len] := par;
+ }
+
+ /* 3.2.2.6 Connection Mode (sendonly, recvonly, sendrecv, confrnce, inactive, loopback,
+ * conttest, netwloop, netwtest) */
+ template MgcpParameter t_MgcpParConnMode(template MgcpConnectionMode mode) := { "M", mode };
+
+ /* 3.2.2.2 CallId: maximum 32 hex chars */
+ template MgcpParameter ts_MgcpParCallId(MgcpCallId cid) := {
+ code := "C",
+ val := hex2str(cid)
+ };
+
+ /* 3.2.2.18 RequestIdentifier: Maximum 32 hex chars */
+ template MgcpParameter ts_MgcpParReqId(MgcpRequestId rid) := {
+ code := "X",
+ val := hex2str(rid)
+ };
+
+ /* 3.2.2.10: LocalConnectionOptions (codec, packetization, bandwidth, ToS, eco, gain, silence, ...) */
+ template MgcpParameter t_MgcpParLocConnOpt(template charstring lco) := { "L", lco };
+
+ /* 3.2.2.5: ConnectionId: maximum 32 hex chars */
+ template MgcpParameter ts_MgcpParConnectionId(MgcpConnectionId cid) := {
+ code := "I",
+ val := hex2str(cid)
+ };
+
+ /* osmo-bsc_mgcp implements L/C/M/X only, osmo-mgw adds 'I' */
+ /* SDP: osmo-bsc_mgcp implements Tx of v,o,s,c,t,m,a */
+
+ template MgcpResponse tr_MgcpResp_Err(template MgcpResponseCode code) := {
+ line := {
+ code := code,
+ trans_id := ?,
+ string := ?
+ },
+ params := {},
+ sdp := omit
+ }
+
+ template MgcpCommandLine t_MgcpCmdLine(template charstring verb, template MgcpTransId trans_id, template charstring ep) := {
+ verb := verb,
+ trans_id := trans_id,
+ ep := ep,
+ ver := "1.0"
+ };
+
+ template MgcpCommand ts_CRCX(MgcpTransId trans_id, charstring ep, MgcpConnectionMode mode, MgcpCallId call_id, template SDP_Message sdp := omit) := {
+ line := t_MgcpCmdLine("CRCX", trans_id, ep),
+ params := {
+ t_MgcpParConnMode(mode),
+ ts_MgcpParCallId(call_id),
+ //t_MgcpParReqId(omit),
+ t_MgcpParLocConnOpt("p:20, a:PCMU")
+ },
+ sdp := sdp
+ }
+
+ template MgcpResponse tr_CRCX_ACK := {
+ line := {
+ code := "200",
+ string := "OK"
+ },
+ params:= { { "I", ? }, *},
+ sdp := ?
+ }
+
+ template MgcpCommand ts_MDCX(MgcpTransId trans_id, charstring ep, MgcpConnectionMode mode, MgcpCallId call_id, MgcpConnectionId conn_id, template SDP_Message sdp := omit) := {
+ line := t_MgcpCmdLine("MDCX", trans_id, ep),
+ params := {
+ t_MgcpParConnMode(mode),
+ ts_MgcpParCallId(call_id),
+ ts_MgcpParConnectionId(conn_id),
+ //t_MgcpParReqId(omit),
+ t_MgcpParLocConnOpt("p:20, a:PCMU")
+ },
+ sdp := sdp
+ }
+
+ /* have a function that generates a template, rather than a template in order to handle
+ * optional parameters */
+ function ts_DLCX(MgcpTransId trans_id, charstring ep, template MgcpCallId call_id := omit,
+ template MgcpConnectionId conn_id := omit) return template MgcpCommand {
+ var template MgcpCommand cmd;
+ cmd.line := t_MgcpCmdLine("DLCX", trans_id, ep);
+ cmd.params := {};
+ cmd.sdp := omit;
+ if (isvalue(call_id)) {
+ f_mgcp_par_append(cmd.params, ts_MgcpParCallId(valueof(call_id)));
+ if (isvalue(conn_id)) {
+ f_mgcp_par_append(cmd.params, ts_MgcpParConnectionId(valueof(conn_id)));
+ }
+ }
+ return cmd;
+ }
+
+ /* SDP Templates */
+ template SDP_Origin ts_SDP_origin(charstring addr, charstring session_id,
+ charstring session_version := "1",
+ charstring addr_type := "IP4",
+ charstring user_name := "-") := {
+ user_name := user_name,
+ session_id := session_id,
+ session_version := session_version,
+ net_type := "IN",
+ addr_type := addr_type,
+ addr := addr
+ }
+
+ template SDP_connection ts_SDP_connection_IP(charstring addr, charstring addr_type := "IP4",
+ template integer ttl := omit,
+ template integer num_of_addr := omit) :={
+ net_type := "IN",
+ addr_type := addr_type,
+ conn_addr := {
+ addr := addr,
+ ttl := ttl,
+ num_of_addr := num_of_addr
+ }
+ }
+
+ template SDP_time ts_SDP_time(charstring beg, charstring end) := {
+ time_field := {
+ start_time := beg,
+ stop_time := end
+ },
+ time_repeat := omit
+ }
+
+ template SDP_media_desc ts_SDP_media_desc(integer port_number, SDP_fmt_list fmts,
+ SDP_attribute_list attributes) := {
+ media_field := {
+ media := "audio",
+ ports := {
+ port_number := port_number,
+ num_of_ports := omit
+ },
+ transport := "RTP/AVP",
+ fmts := fmts
+ },
+ information := omit,
+ connections := omit,
+ bandwidth := omit,
+ key := omit,
+ attributes := attributes
+ }
+
+ /* master template for generating SDP based in template arguments */
+ template SDP_Message ts_SDP(charstring local_addr, charstring remote_addr,
+ charstring session_id, charstring session_version,
+ integer rtp_port, SDP_fmt_list fmts,
+ SDP_attribute_list attributes) := {
+ protocol_version := 0,
+ origin := ts_SDP_origin(local_addr, session_id, session_version),
+ session_name := "-",
+ information := omit,
+ uri := omit,
+ emails := omit,
+ phone_numbers := omit,
+ connection := ts_SDP_connection_IP(remote_addr),
+ bandwidth := omit,
+ times := { ts_SDP_time("0","0") },
+ timezone_adjustments := omit,
+ key := omit,
+ attributes := omit,
+ media_list := { ts_SDP_media_desc(rtp_port, fmts, attributes) }
+ }
+
+ template SDP_attribute ts_SDP_rtpmap(integer fmt, charstring val) := {
+ rtpmap := {
+ attr_value := int2str(fmt) & " " & val
+ }
+ }
+ template SDP_attribute ts_SDP_ptime(integer p) := {
+ ptime := {
+ attr_value := int2str(p)
+ }
+ }
+
+}