Neels Hofmeyr | a2d1d7a | 2022-01-20 23:11:38 +0100 | [diff] [blame] | 1 | /* dual-faced port sitting on top of IPL4_asp UDP to encode/decode PFCP |
| 2 | * |
| 3 | * (C) 2022 sysmocom - s.f.m.c. GmbH <info@sysmocom.de> |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Released under the terms of GNU General Public License, Version 2 or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 10 | */ |
| 11 | module PFCP_CodecPort { |
| 12 | |
| 13 | import from IPL4asp_PortType all; |
| 14 | import from IPL4asp_Types all; |
| 15 | import from PFCP_Types all; |
| 16 | |
| 17 | /* identifies a remote peer (sender or receiver) */ |
| 18 | type record PFCP_Peer { |
| 19 | ConnectionId conn_id, |
| 20 | HostName remote_name, |
| 21 | PortNumber remote_port |
| 22 | } |
| 23 | |
| 24 | type record PFCP_Unitdata { |
| 25 | PFCP_Peer peer, |
| 26 | PDU_PFCP pdu |
| 27 | } |
| 28 | |
| 29 | /* Translation port on top of IPL4asp; ASP_Event passed through transparently */ |
| 30 | type port PFCP_PT message { |
| 31 | out PFCP_Unitdata; |
| 32 | in PFCP_Unitdata, |
| 33 | ASP_ConnId_ReadyToRelease, |
| 34 | ASP_Event; |
| 35 | } with { extension "user IPL4asp_PT |
| 36 | out(PFCP_Unitdata -> ASP_SendTo: function(f_enc_pfcp_unitdata)) |
| 37 | in(ASP_RecvFrom -> PFCP_Unitdata: function(f_dec_pfcp_unitdata); |
| 38 | ASP_ConnId_ReadyToRelease -> ASP_ConnId_ReadyToRelease: simple; |
| 39 | ASP_Event -> ASP_Event: simple)" } |
| 40 | |
| 41 | private function f_enc_pfcp_unitdata(in PFCP_Unitdata in_ud, out ASP_SendTo out_ud) { |
| 42 | out_ud.connId := in_ud.peer.conn_id; |
| 43 | out_ud.remName := in_ud.peer.remote_name; |
| 44 | out_ud.remPort := in_ud.peer.remote_port; |
| 45 | out_ud.proto := { udp := {} }; |
| 46 | out_ud.msg := enc_PDU_PFCP(in_ud.pdu); |
| 47 | } with { extension "prototype(fast)" }; |
| 48 | |
| 49 | private function f_dec_pfcp_unitdata(in ASP_RecvFrom in_ud, out PFCP_Unitdata out_ud) { |
| 50 | out_ud.peer.conn_id := in_ud.connId; |
| 51 | out_ud.peer.remote_name := in_ud.remName; |
| 52 | out_ud.peer.remote_port := in_ud.remPort; |
| 53 | out_ud.pdu := dec_PDU_PFCP(in_ud.msg); |
| 54 | } with { extension "prototype(fast)" }; |
| 55 | |
| 56 | } |