| /* dual-faced port sitting on top of IPL4_asp UDP to encode/decode PFCP |
| * |
| * (C) 2022 sysmocom - s.f.m.c. GmbH <info@sysmocom.de> |
| * All rights reserved. |
| * |
| * Released under the terms of GNU General Public License, Version 2 or |
| * (at your option) any later version. |
| * |
| * SPDX-License-Identifier: GPL-2.0-or-later |
| */ |
| module PFCP_CodecPort { |
| |
| import from IPL4asp_PortType all; |
| import from IPL4asp_Types all; |
| import from PFCP_Types all; |
| |
| /* identifies a remote peer (sender or receiver) */ |
| type record PFCP_Peer { |
| ConnectionId conn_id, |
| HostName remote_name, |
| PortNumber remote_port |
| } |
| |
| type record PFCP_Unitdata { |
| PFCP_Peer peer, |
| PDU_PFCP pdu |
| } |
| |
| /* Translation port on top of IPL4asp; ASP_Event passed through transparently */ |
| type port PFCP_PT message { |
| out PFCP_Unitdata; |
| in PFCP_Unitdata, |
| ASP_ConnId_ReadyToRelease, |
| ASP_Event; |
| } with { extension "user IPL4asp_PT |
| out(PFCP_Unitdata -> ASP_SendTo: function(f_enc_pfcp_unitdata)) |
| in(ASP_RecvFrom -> PFCP_Unitdata: function(f_dec_pfcp_unitdata); |
| ASP_ConnId_ReadyToRelease -> ASP_ConnId_ReadyToRelease: simple; |
| ASP_Event -> ASP_Event: simple)" } |
| |
| private function f_enc_pfcp_unitdata(in PFCP_Unitdata in_ud, out ASP_SendTo out_ud) { |
| out_ud.connId := in_ud.peer.conn_id; |
| out_ud.remName := in_ud.peer.remote_name; |
| out_ud.remPort := in_ud.peer.remote_port; |
| out_ud.proto := { udp := {} }; |
| out_ud.msg := enc_PDU_PFCP(in_ud.pdu); |
| } with { extension "prototype(fast)" }; |
| |
| private function f_dec_pfcp_unitdata(in ASP_RecvFrom in_ud, out PFCP_Unitdata out_ud) { |
| out_ud.peer.conn_id := in_ud.connId; |
| out_ud.peer.remote_name := in_ud.remName; |
| out_ud.peer.remote_port := in_ud.remPort; |
| out_ud.pdu := dec_PDU_PFCP(in_ud.msg); |
| } with { extension "prototype(fast)" }; |
| |
| } |