Harald Welte | f09d1ba | 2017-11-25 02:20:13 +0100 | [diff] [blame] | 1 | module MGCP_Adapter { |
| 2 | |
Harald Welte | 34b5a95 | 2019-05-27 11:54:11 +0200 | [diff] [blame] | 3 | /* MGCP Adapter for bsc-nat tests in TTCN-3 |
| 4 | * (C) 2017 Harald Welte <laforge@gnumonks.org> |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Released under the terms of GNU General Public License, Version 2 or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 11 | */ |
| 12 | |
Harald Welte | f09d1ba | 2017-11-25 02:20:13 +0100 | [diff] [blame] | 13 | import from IPL4asp_Types all; |
| 14 | |
| 15 | import from MGCP_Types all; |
| 16 | import from MGCP_CodecPort all; |
| 17 | import from MGCP_CodecPort_CtrlFunct all; |
| 18 | |
| 19 | import from IPA_Emulation all; |
| 20 | |
| 21 | |
| 22 | type component MGCP_Adapter_CT { |
| 23 | /* MGCP Codec Port for MGCP-over-UDP */ |
| 24 | port MGCP_CODEC_PT MGCP_UDP; |
| 25 | port IPA_MGCP_PT MGCP; |
| 26 | var integer g_mgcp_conn_id := -1; |
| 27 | } |
| 28 | |
| 29 | modulepar { |
| 30 | charstring mp_callagent_ip := "127.0.0.1"; |
| 31 | PortNumber mp_callagent_udp_port := 2727; |
| 32 | charstring mp_mgw_ip := "127.0.0.1"; |
| 33 | PortNumber mp_mgw_udp_port := 2427; |
| 34 | } |
| 35 | |
| 36 | /* build a receive template for receiving a MGCP message. You |
| 37 | * pass the MGCP response template in, and it will generate an |
| 38 | * MGCP_RecvFrom template that can match the primitives arriving on the |
| 39 | * MGCP_CodecPort */ |
| 40 | function tr_MGCP_RecvFrom_R(template MgcpResponse resp) |
| 41 | runs on MGCP_Adapter_CT return template MGCP_RecvFrom { |
| 42 | var template MGCP_RecvFrom mrf := { |
| 43 | connId := g_mgcp_conn_id, |
| 44 | remName := mp_mgw_ip, |
| 45 | remPort := mp_mgw_udp_port, |
| 46 | locName := mp_callagent_ip, |
| 47 | locPort := mp_callagent_udp_port, |
| 48 | msg := { response := resp } |
| 49 | } |
| 50 | return mrf; |
| 51 | } |
| 52 | |
| 53 | |
| 54 | function main() runs on MGCP_Adapter_CT { |
| 55 | var Result res; |
| 56 | map(self:MGCP_UDP, system:MGCP_CODEC_PT); |
| 57 | res := MGCP_CodecPort_CtrlFunct.f_IPL4_connect(MGCP_UDP, mp_mgw_ip, mp_mgw_udp_port, |
| 58 | mp_callagent_ip, mp_callagent_udp_port, |
| 59 | 0, { udp:={} }); |
Harald Welte | 9220f63 | 2018-05-23 20:27:02 +0200 | [diff] [blame] | 60 | if (not ispresent(res.connId)) { |
| 61 | setverdict(fail, "Could not connect MGCP, check your configuration"); |
| 62 | self.stop; |
| 63 | } |
Harald Welte | f09d1ba | 2017-11-25 02:20:13 +0100 | [diff] [blame] | 64 | g_mgcp_conn_id := res.connId; |
| 65 | |
| 66 | while (true) { |
| 67 | var MgcpCommand mgcp_cmd; |
| 68 | var MGCP_RecvFrom mrf; |
| 69 | |
| 70 | alt { |
| 71 | /* From BSC/MGW via UDP up to MSC / Call Agent */ |
| 72 | [] MGCP_UDP.receive(tr_MGCP_RecvFrom_R(?)) -> value mrf { |
| 73 | MGCP.send(mrf.msg.response); |
| 74 | } |
| 75 | |
| 76 | /* From MSC / Call Agent down to BSC/MGW */ |
| 77 | [] MGCP.receive(MgcpCommand:?) -> value mgcp_cmd { |
| 78 | var MgcpMessage msg := { command := mgcp_cmd }; |
| 79 | MGCP_UDP.send(t_MGCP_Send(g_mgcp_conn_id, msg)); |
| 80 | } |
| 81 | |
| 82 | } |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | } |