Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 1 | module IPA_Emulation { |
| 2 | |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 3 | /* This module implements the IPA multiplex protocol on top of TCP, using the IPL4asp |
| 4 | * test-port as provider. It implements both client and server roles, as well was the CCM |
Pau Espin Pedrol | 76ba541 | 2019-06-10 11:00:33 +0200 | [diff] [blame] | 5 | * handshake for establishing the identity of the client to the server. |
Harald Welte | 35bb716 | 2018-01-03 21:07:52 +0100 | [diff] [blame] | 6 | * |
| 7 | * It already knows certain well-known sub-protocols such as A-bis RSL, MGCP and SCCP and |
| 8 | * GSUP. IT hence transcodes messages so the user can work with abstract data types rather |
| 9 | * than binary messages. It handles multiple packets inside one TCP segment. |
| 10 | * |
Harald Welte | 34b5a95 | 2019-05-27 11:54:11 +0200 | [diff] [blame] | 11 | * (C) 2017-2019 by Harald Welte <laforge@gnumonks.org> |
| 12 | * contributions by sysmocom - s.f.m.c. GmbH |
Harald Welte | 35bb716 | 2018-01-03 21:07:52 +0100 | [diff] [blame] | 13 | * All rights reserved. |
| 14 | * |
| 15 | * Released under the terms of GNU General Public License, Version 2 or |
| 16 | * (at your option) any later version. |
Harald Welte | 34b5a95 | 2019-05-27 11:54:11 +0200 | [diff] [blame] | 17 | * |
| 18 | * SPDX-License-Identifier: GPL-2.0-or-later |
Harald Welte | 35bb716 | 2018-01-03 21:07:52 +0100 | [diff] [blame] | 19 | */ |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 20 | |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 21 | import from IPA_Types all; |
| 22 | import from IPA_CodecPort all; |
| 23 | import from IPA_CodecPort_CtrlFunct all; |
| 24 | import from IPL4asp_Types all; |
Harald Welte | 1218883 | 2017-11-29 11:47:13 +0100 | [diff] [blame] | 25 | import from IPL4asp_PortType all; |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 26 | import from Socket_API_Definitions all; |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 27 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 28 | #ifdef IPA_EMULATION_SCCP |
| 29 | import from MTP3asp_Types all; |
| 30 | import from MTP3asp_PortType all; |
| 31 | #endif |
| 32 | |
| 33 | #ifdef IPA_EMULATION_RSL |
| 34 | import from RSL_Types all; |
| 35 | #endif |
| 36 | |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 37 | #ifdef IPA_EMULATION_OML |
| 38 | import from AbisOML_Types all; |
| 39 | #endif |
| 40 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 41 | #ifdef IPA_EMULATION_MGCP |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 42 | import from MGCP_Types all; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 43 | #endif |
| 44 | |
| 45 | #ifdef IPA_EMULATION_GSUP |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 46 | import from GSUP_Types all; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 47 | #endif |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 48 | |
Harald Welte | 7460a72 | 2018-10-10 12:28:27 +0200 | [diff] [blame] | 49 | #ifdef IPA_EMULATION_RSPRO |
| 50 | import from RSPRO all; |
| 51 | import from RSPRO_Types all; |
| 52 | #endif |
| 53 | |
Harald Welte | 3286eb3 | 2019-08-18 19:36:10 +0200 | [diff] [blame] | 54 | #ifdef IPA_EMULATION_CTRL |
Harald Welte | a76c4bb | 2017-12-09 02:06:07 +0100 | [diff] [blame] | 55 | import from Osmocom_CTRL_Types all; |
Harald Welte | 3286eb3 | 2019-08-18 19:36:10 +0200 | [diff] [blame] | 56 | #endif |
Harald Welte | a76c4bb | 2017-12-09 02:06:07 +0100 | [diff] [blame] | 57 | |
Pau Espin Pedrol | 6924ef7 | 2021-06-09 16:19:26 +0200 | [diff] [blame] | 58 | #ifdef IPA_EMULATION_OSMO_PCU |
| 59 | import from PCUIF_Types all; |
| 60 | #endif |
| 61 | |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 62 | modulepar { |
Harald Welte | 92632e1 | 2017-11-25 02:31:20 +0100 | [diff] [blame] | 63 | /* Use Osmocom extended IPA mux header */ |
| 64 | boolean mp_ipa_mgcp_uses_osmo_ext := true; |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 65 | } |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 66 | |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 67 | type enumerated IpaMode { |
| 68 | IPA_MODE_CLIENT, |
| 69 | IPA_MODE_SERVER |
| 70 | } |
| 71 | |
Neels Hofmeyr | 3bf31d2 | 2018-08-24 14:44:32 +0200 | [diff] [blame] | 72 | type enumerated IpaInitBehavior { |
| 73 | IPA_INIT_SEND_IPA_ID_GET, |
| 74 | IPA_INIT_SEND_IPA_ID_ACK |
| 75 | } |
| 76 | |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 77 | type record ASP_IPA_Unitdata { |
| 78 | IpaStreamId streamId, |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 79 | IpaExtStreamId streamIdExt optional, |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 80 | octetstring payload |
| 81 | } |
| 82 | |
Vadim Yanitskiy | 8701b27 | 2020-05-18 20:17:25 +0700 | [diff] [blame] | 83 | type enumerated ASP_IPA_EventType { |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 84 | ASP_IPA_EVENT_DOWN, |
| 85 | ASP_IPA_EVENT_UP, |
Vadim Yanitskiy | 11edf3c | 2020-05-24 22:26:54 +0700 | [diff] [blame] | 86 | ASP_IPA_EVENT_ID_RESP, |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 87 | ASP_IPA_EVENT_ID_ACK |
| 88 | } |
| 89 | |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 90 | /* an event indicating us whether or not a connection is physically up or down, |
Vadim Yanitskiy | 11edf3c | 2020-05-24 22:26:54 +0700 | [diff] [blame] | 91 | * and whether we have received an ID_RESP or ID_ACK */ |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 92 | type record ASP_IPA_Event { |
| 93 | ASP_IPA_EventType ev_type, |
Vadim Yanitskiy | 11edf3c | 2020-05-24 22:26:54 +0700 | [diff] [blame] | 94 | integer conn_id, |
| 95 | |
| 96 | /* Presence of these fields depends on event type */ |
| 97 | IpaCcmIdResp id_resp optional // ASP_IPA_EVENT_ID_RESP |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 98 | } |
| 99 | |
Vadim Yanitskiy | 11edf3c | 2020-05-24 22:26:54 +0700 | [diff] [blame] | 100 | template (value) ASP_IPA_Event ts_ASP_IPA_EV(ASP_IPA_EventType ev_type, integer conn_id, |
| 101 | template (omit) IpaCcmIdResp id_resp := omit) := { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 102 | ev_type := ev_type, |
Vadim Yanitskiy | 11edf3c | 2020-05-24 22:26:54 +0700 | [diff] [blame] | 103 | conn_id := conn_id, |
| 104 | id_resp := id_resp |
Vadim Yanitskiy | 61564be | 2020-05-18 20:44:14 +0700 | [diff] [blame] | 105 | } |
| 106 | |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 107 | template ASP_IPA_Event tr_ASP_IPA_EV(template ASP_IPA_EventType ev_type, |
Vadim Yanitskiy | 11edf3c | 2020-05-24 22:26:54 +0700 | [diff] [blame] | 108 | template integer conn_id := ?, |
| 109 | template IpaCcmIdResp id_resp := *) := { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 110 | ev_type := ev_type, |
Vadim Yanitskiy | 11edf3c | 2020-05-24 22:26:54 +0700 | [diff] [blame] | 111 | conn_id := conn_id, |
| 112 | id_resp := id_resp |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 113 | } |
| 114 | |
Harald Welte | 1dd8f37 | 2017-11-25 02:25:27 +0100 | [diff] [blame] | 115 | template ASP_IPA_Unitdata t_ASP_IPA_UD(IpaStreamId sid, octetstring pl, |
| 116 | template IpaExtStreamId esid := omit) := { |
| 117 | streamId := sid, |
| 118 | streamIdExt := esid, |
| 119 | payload := pl |
| 120 | } |
| 121 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 122 | #ifdef IPA_EMULATION_RSL |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 123 | /* like ASP_IPA_Unitdata, but with RSL_Message abstract type instead of octetstring */ |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 124 | type record ASP_RSL_Unitdata { |
Vadim Yanitskiy | ef9bcd2 | 2020-05-25 19:01:04 +0700 | [diff] [blame] | 125 | integer conn_id optional, |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 126 | IpaStreamId streamId, |
| 127 | RSL_Message rsl |
| 128 | }; |
| 129 | |
Vadim Yanitskiy | 9b4e356 | 2020-05-25 21:40:52 +0700 | [diff] [blame] | 130 | template (value) ASP_RSL_Unitdata ts_ASP_RSL_UD(template (value) RSL_Message rsl, |
Vadim Yanitskiy | ef9bcd2 | 2020-05-25 19:01:04 +0700 | [diff] [blame] | 131 | IpaStreamId sid := IPAC_PROTO_RSL_TRX0, |
| 132 | template (omit) integer conn_id := omit) := { |
| 133 | conn_id := conn_id, |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 134 | streamId := sid, |
Vadim Yanitskiy | 6b4856d | 2020-05-25 21:23:46 +0700 | [diff] [blame] | 135 | rsl := rsl |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 136 | } |
| 137 | |
Vadim Yanitskiy | 9b4e356 | 2020-05-25 21:40:52 +0700 | [diff] [blame] | 138 | template ASP_RSL_Unitdata tr_ASP_RSL_UD(template (present) RSL_Message rsl, |
Vadim Yanitskiy | ef9bcd2 | 2020-05-25 19:01:04 +0700 | [diff] [blame] | 139 | template IpaStreamId sid := IPAC_PROTO_RSL_TRX0, |
| 140 | template integer conn_id := *) := { |
| 141 | conn_id := conn_id, |
Harald Welte | 7ae019e | 2017-12-09 00:54:15 +0100 | [diff] [blame] | 142 | streamId := sid, |
| 143 | rsl := rsl |
| 144 | } |
| 145 | |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 146 | template IpaStreamId t_IpaSidRSL := ( IPAC_PROTO_RSL_TRX0, IPAC_PROTO_RSL_TRX1, |
| 147 | IPAC_PROTO_RSL_TRX2, IPAC_PROTO_RSL_TRX3 ); |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 148 | #endif |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 149 | |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 150 | |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 151 | /* Client port for general IPA messages, not further decoded */ |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 152 | type port IPA_SP_PT message { |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 153 | inout ASP_IPA_Unitdata, ASP_IPA_Event; |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 154 | } with { extension "internal" } |
| 155 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 156 | #ifdef IPA_EMULATION_MGCP |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 157 | /* Client port for MGCP inside IPA */ |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 158 | type port IPA_MGCP_PT message { |
| 159 | inout MgcpCommand, MgcpResponse; |
| 160 | } with { extension "internal" } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 161 | #endif |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 162 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 163 | #ifdef IPA_EMULATION_RSL |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 164 | /* Client port for A-bis RSL inside IPA */ |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 165 | type port IPA_RSL_PT message { |
| 166 | inout ASP_RSL_Unitdata, ASP_IPA_Event; |
| 167 | } with { extension "internal" } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 168 | #endif |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 169 | |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 170 | #ifdef IPA_EMULATION_OML |
| 171 | /* Client port for A-bis OML inside IPA */ |
| 172 | type port IPA_OML_PT message { |
| 173 | inout OML_PDU, octetstring, ASP_IPA_Event; |
| 174 | } with { extension "internal" } |
| 175 | #endif |
| 176 | |
Harald Welte | 3286eb3 | 2019-08-18 19:36:10 +0200 | [diff] [blame] | 177 | #ifdef IPA_EMULATION_CTRL |
Harald Welte | a76c4bb | 2017-12-09 02:06:07 +0100 | [diff] [blame] | 178 | /* Client port for CTRL inside IPA */ |
| 179 | type port IPA_CTRL_PT message { |
| 180 | inout CtrlMessage, ASP_IPA_Event; |
| 181 | } with { extension "internal" } |
Harald Welte | 3286eb3 | 2019-08-18 19:36:10 +0200 | [diff] [blame] | 182 | #endif |
Harald Welte | a76c4bb | 2017-12-09 02:06:07 +0100 | [diff] [blame] | 183 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 184 | #ifdef IPA_EMULATION_GSUP |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 185 | /* Client port for CTRL inside IPA */ |
| 186 | type port IPA_GSUP_PT message { |
| 187 | inout GSUP_PDU, ASP_IPA_Event; |
| 188 | } with { extension "internal" } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 189 | #endif |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 190 | |
Harald Welte | 7460a72 | 2018-10-10 12:28:27 +0200 | [diff] [blame] | 191 | #ifdef IPA_EMULATION_RSPRO |
| 192 | type port IPA_RSPRO_PT message { |
| 193 | inout RsproPDU, ASP_IPA_Event; |
| 194 | } with { extension "internal" } |
| 195 | #endif |
| 196 | |
Pau Espin Pedrol | 6924ef7 | 2021-06-09 16:19:26 +0200 | [diff] [blame] | 197 | #ifdef IPA_EMULATION_OSMO_PCU |
| 198 | /* Client port for Osmocom PCU extension inside IPA */ |
| 199 | type port IPA_OSMO_PCU_PT message { |
| 200 | inout PCUIF_Message, ASP_IPA_Event; |
| 201 | } with { extension "internal" } |
| 202 | #endif |
Harald Welte | 7460a72 | 2018-10-10 12:28:27 +0200 | [diff] [blame] | 203 | |
| 204 | |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 205 | |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 206 | type component IPA_Emulation_CT { |
| 207 | /* down-facing port to IPA codec port */ |
| 208 | port IPA_CODEC_PT IPA_PORT; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 209 | #ifdef IPA_EMULATION_SCCP |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 210 | /* up-facing port to SCCP */ |
| 211 | port MTP3asp_SP_PT MTP3_SP_PORT; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 212 | #endif |
| 213 | #ifdef IPA_EMULATION_MGCP |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 214 | /* up-facing port for MGCP */ |
| 215 | port IPA_MGCP_PT IPA_MGCP_PORT; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 216 | #endif |
| 217 | #ifdef IPA_EMULATION_RSL |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 218 | /* up-facing port for RSL */ |
| 219 | port IPA_RSL_PT IPA_RSL_PORT; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 220 | #endif |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 221 | #ifdef IPA_EMULATION_OML |
| 222 | /* up-facing port for OML */ |
| 223 | port IPA_OML_PT IPA_OML_PORT; |
| 224 | #endif |
Pau Espin Pedrol | acc5119 | 2019-06-11 15:35:19 +0200 | [diff] [blame] | 225 | #ifdef IPA_EMULATION_CTRL |
Harald Welte | a76c4bb | 2017-12-09 02:06:07 +0100 | [diff] [blame] | 226 | /* up-facing port for CTRL */ |
| 227 | port IPA_CTRL_PT IPA_CTRL_PORT; |
Pau Espin Pedrol | acc5119 | 2019-06-11 15:35:19 +0200 | [diff] [blame] | 228 | #endif |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 229 | #ifdef IPA_EMULATION_GSUP |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 230 | /* up-facing port for GSUP */ |
| 231 | port IPA_GSUP_PT IPA_GSUP_PORT; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 232 | #endif |
Harald Welte | 7460a72 | 2018-10-10 12:28:27 +0200 | [diff] [blame] | 233 | #ifdef IPA_EMULATION_RSPRO |
| 234 | /* up-facing port for RSPRO */ |
| 235 | port IPA_RSPRO_PT IPA_RSPRO_PORT; |
| 236 | #endif |
Pau Espin Pedrol | 6924ef7 | 2021-06-09 16:19:26 +0200 | [diff] [blame] | 237 | #ifdef IPA_EMULATION_OSMO_PCU |
| 238 | /* up-facing port for RSPRO */ |
| 239 | port IPA_OSMO_PCU_PT IPA_OSMO_PCU_PORT; |
| 240 | #endif |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 241 | |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 242 | /* up-facing port for other streams */ |
| 243 | port IPA_SP_PT IPA_SP_PORT; |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 244 | |
| 245 | var boolean g_initialized := false; |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 246 | /* Are we a BSC/MGW (truel) or MSC (false) */ |
| 247 | var boolean g_is_bsc_mgw; |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 248 | |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 249 | /* Connection identifier of the client / server itself */ |
| 250 | var IPL4asp_Types.ConnectionId g_self_conn_id := -1; |
| 251 | /* Connection identifier of the last connected client (server only) */ |
| 252 | var IPL4asp_Types.ConnectionId g_last_conn_id := -1; |
| 253 | |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 254 | var IpaMode g_mode; |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 255 | var boolean g_ccm_enabled; |
Neels Hofmeyr | 3bf31d2 | 2018-08-24 14:44:32 +0200 | [diff] [blame] | 256 | var IpaInitBehavior g_init_behavior; |
Pau Espin Pedrol | 2dc137c | 2021-01-28 19:53:21 +0100 | [diff] [blame] | 257 | /* Shall we stop the component once the client disconnects, or keep |
| 258 | * running to let next user in ? */ |
| 259 | var boolean g_server_stop_on_ipa_ev_down := true; |
Harald Welte | e09921f | 2017-12-07 17:49:00 +0100 | [diff] [blame] | 260 | var IPA_CCM_Parameters g_ccm_pars := c_IPA_default_ccm_pars; |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 261 | } |
| 262 | |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 263 | type record IPA_CCM_Parameters { |
| 264 | charstring ser_nr optional, |
| 265 | charstring name optional, |
| 266 | charstring location1 optional, |
| 267 | charstring location2 optional, |
| 268 | charstring equip_version optional, |
| 269 | charstring sw_version optional, |
| 270 | charstring ip_addr optional, |
| 271 | charstring mac_addr optional, |
| 272 | charstring unit_id optional, |
| 273 | charstring osmo_rand optional |
| 274 | } |
| 275 | |
Harald Welte | e09921f | 2017-12-07 17:49:00 +0100 | [diff] [blame] | 276 | const IPA_CCM_Parameters c_IPA_default_ccm_pars := { |
| 277 | ser_nr := "", |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 278 | name := "mahlzeit", |
Harald Welte | e09921f | 2017-12-07 17:49:00 +0100 | [diff] [blame] | 279 | location1 := "", |
| 280 | location2 := "", |
| 281 | equip_version := "", |
| 282 | sw_version := "", |
| 283 | ip_addr := "", |
| 284 | mac_addr := "", |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 285 | unit_id := "0/1/2", |
Harald Welte | e09921f | 2017-12-07 17:49:00 +0100 | [diff] [blame] | 286 | osmo_rand := "" |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 287 | }; |
| 288 | |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 289 | /* Function to use to connect as client to a remote IPA Server */ |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 290 | function f_connect(charstring remote_host, IPL4asp_Types.PortNumber remote_port, |
| 291 | charstring local_host, IPL4asp_Types.PortNumber local_port, |
Harald Welte | e09921f | 2017-12-07 17:49:00 +0100 | [diff] [blame] | 292 | IPA_CCM_Parameters ccm_pars := c_IPA_default_ccm_pars) runs on IPA_Emulation_CT { |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 293 | var IPL4asp_Types.Result res; |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 294 | res := IPA_CodecPort_CtrlFunct.f_IPL4_connect(IPA_PORT, remote_host, remote_port, |
| 295 | local_host, local_port, 0, { tcp:={} }); |
Harald Welte | 9220f63 | 2018-05-23 20:27:02 +0200 | [diff] [blame] | 296 | if (not ispresent(res.connId)) { |
Stefan Sperling | 6a90be4 | 2018-08-31 15:05:39 +0200 | [diff] [blame] | 297 | setverdict(fail, "Could not connect IPA socket from ", local_host, " port ", local_port, |
| 298 | " to ", remote_host, " port ", remote_port, "; check your configuration"); |
Daniel Willmann | e4ff537 | 2018-07-05 17:35:03 +0200 | [diff] [blame] | 299 | mtc.stop; |
Harald Welte | 9220f63 | 2018-05-23 20:27:02 +0200 | [diff] [blame] | 300 | } |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 301 | g_self_conn_id := res.connId; |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 302 | g_ccm_pars := ccm_pars; |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 303 | g_is_bsc_mgw := true; |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 304 | } |
| 305 | |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 306 | /* Function to use to bind to a local port as IPA server, accepting remote clients */ |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 307 | function f_bind(charstring local_host, IPL4asp_Types.PortNumber local_port, |
Harald Welte | e09921f | 2017-12-07 17:49:00 +0100 | [diff] [blame] | 308 | IPA_CCM_Parameters ccm_pars := c_IPA_default_ccm_pars) runs on IPA_Emulation_CT { |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 309 | var IPL4asp_Types.Result res; |
Pau Espin Pedrol | 76ba541 | 2019-06-10 11:00:33 +0200 | [diff] [blame] | 310 | res := IPA_CodecPort_CtrlFunct.f_IPL4_listen(IPA_PORT, |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 311 | local_host, local_port, { tcp:={} }); |
Harald Welte | 9220f63 | 2018-05-23 20:27:02 +0200 | [diff] [blame] | 312 | if (not ispresent(res.connId)) { |
Max | b7aae8b | 2019-03-11 15:22:02 +0100 | [diff] [blame] | 313 | setverdict(fail, "Could not listen IPA socket ", local_host, ":", local_port, ", check your configuration"); |
Daniel Willmann | e4ff537 | 2018-07-05 17:35:03 +0200 | [diff] [blame] | 314 | mtc.stop; |
Harald Welte | 9220f63 | 2018-05-23 20:27:02 +0200 | [diff] [blame] | 315 | } |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 316 | g_self_conn_id := res.connId; |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 317 | g_ccm_pars := ccm_pars; |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 318 | g_is_bsc_mgw := false; |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 319 | } |
| 320 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 321 | #ifdef IPA_EMULATION_SCCP |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 322 | template ASP_MTP3_TRANSFERind ts_MTP3_XFER_ind(integer opc, octetstring data) := { |
| 323 | sio := { '10'B, '00'B, '0011'B }, |
| 324 | opc := opc, |
| 325 | dpc := 0, |
| 326 | sls := 0, |
| 327 | data := data |
| 328 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 329 | #endif |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 330 | |
| 331 | |
| 332 | private template IpaCcmRespPart t_IdRespPart(IpaCcmIdTag tag, charstring payload) := { |
| 333 | len := 0, /* overwritten by codec */ |
| 334 | tag := tag, |
Harald Welte | 95686e0 | 2018-08-02 15:05:43 +0200 | [diff] [blame] | 335 | data := char2oct(payload) & '00'O |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 336 | } |
| 337 | |
Vadim Yanitskiy | 61564be | 2020-05-18 20:44:14 +0700 | [diff] [blame] | 338 | private function f_send_IPA_EVT(template (value) ASP_IPA_Event evt) runs on IPA_Emulation_CT { |
Harald Welte | 2e32e43 | 2018-05-24 20:00:00 +0200 | [diff] [blame] | 339 | if (IPA_SP_PORT.checkstate("Connected")) { |
| 340 | IPA_SP_PORT.send(evt); |
| 341 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 342 | #ifdef IPA_EMULATION_RSL |
Harald Welte | 5819b55 | 2017-12-09 02:55:46 +0100 | [diff] [blame] | 343 | if (IPA_RSL_PORT.checkstate("Connected")) { |
| 344 | IPA_RSL_PORT.send(evt); |
| 345 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 346 | #endif |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 347 | #ifdef IPA_EMULATION_OML |
| 348 | if (IPA_OML_PORT.checkstate("Connected")) { |
| 349 | IPA_OML_PORT.send(evt); |
| 350 | } |
| 351 | #endif |
Pau Espin Pedrol | acc5119 | 2019-06-11 15:35:19 +0200 | [diff] [blame] | 352 | #ifdef IPA_EMULATION_CTRL |
Harald Welte | 5819b55 | 2017-12-09 02:55:46 +0100 | [diff] [blame] | 353 | if (IPA_CTRL_PORT.checkstate("Connected")) { |
| 354 | IPA_CTRL_PORT.send(evt); |
| 355 | } |
Pau Espin Pedrol | acc5119 | 2019-06-11 15:35:19 +0200 | [diff] [blame] | 356 | #endif |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 357 | #ifdef IPA_EMULATION_GSUP |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 358 | if (IPA_GSUP_PORT.checkstate("Connected")) { |
| 359 | IPA_GSUP_PORT.send(evt); |
| 360 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 361 | #endif |
Harald Welte | 7460a72 | 2018-10-10 12:28:27 +0200 | [diff] [blame] | 362 | #ifdef IPA_EMULATION_RSPRO |
| 363 | if (IPA_RSPRO_PORT.checkstate("Connected")) { |
| 364 | IPA_RSPRO_PORT.send(evt); |
| 365 | } |
| 366 | #endif |
Pau Espin Pedrol | 6924ef7 | 2021-06-09 16:19:26 +0200 | [diff] [blame] | 367 | #ifdef IPA_EMULATION_OSMO_PCU |
| 368 | if (IPA_OSMO_PCU_PORT.checkstate("Connected")) { |
| 369 | IPA_OSMO_PCU_PORT.send(evt); |
| 370 | } |
| 371 | #endif |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 372 | /* FIXME: to other ports */ |
| 373 | } |
| 374 | |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 375 | /* build IPA CCM ID RESP response from IPA CCM GET */ |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 376 | private function f_ccm_make_id_resp(PDU_IPA_CCM get) runs on IPA_Emulation_CT return PDU_IPA_CCM { |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 377 | var integer i; |
| 378 | var PDU_IPA_CCM resp := { |
| 379 | msg_type := IPAC_MSGT_ID_RESP, |
| 380 | u := { |
| 381 | resp := {} |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | for (i := 0; i < sizeof(get.u.get); i := i + 1) { |
| 386 | var IpaCcmIdTag tag := get.u.get[i].tag; |
| 387 | var charstring foo; |
| 388 | select (tag) { |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 389 | case (IPAC_IDTAG_SERNR) { |
| 390 | foo := g_ccm_pars.ser_nr; |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 391 | } |
| 392 | case (IPAC_IDTAG_UNITNAME) { |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 393 | foo := g_ccm_pars.name; |
| 394 | } |
| 395 | case (IPAC_IDTAG_LOCATION1) { |
| 396 | foo := g_ccm_pars.location1; |
| 397 | } |
| 398 | case (IPAC_IDTAG_LOCATION2) { |
| 399 | foo := g_ccm_pars.location2; |
| 400 | } |
| 401 | case (IPAC_IDTAG_EQUIPVERS) { |
| 402 | foo := g_ccm_pars.equip_version; |
| 403 | } |
| 404 | case (IPAC_IDTAG_SWVERSION) { |
| 405 | foo := g_ccm_pars.sw_version; |
| 406 | } |
| 407 | case (IPAC_IDTAG_IPADDR) { |
| 408 | foo := g_ccm_pars.ip_addr; |
| 409 | } |
| 410 | case (IPAC_IDTAG_MACADDR) { |
| 411 | foo := g_ccm_pars.mac_addr; |
| 412 | } |
Vadim Yanitskiy | 44f0c48 | 2020-05-24 20:49:29 +0700 | [diff] [blame] | 413 | case (IPAC_IDTAG_UNITID) { |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 414 | foo := g_ccm_pars.unit_id; |
| 415 | } |
| 416 | case (IPAC_IDTAG_OSMO_RAND) { |
| 417 | foo := g_ccm_pars.osmo_rand; |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 418 | } |
| 419 | case else { |
Harald Welte | e21096d | 2017-12-04 20:45:12 +0100 | [diff] [blame] | 420 | foo := "unknown"; |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 421 | } |
| 422 | } |
| 423 | resp.u.resp[sizeof(resp.u.resp)] := valueof(t_IdRespPart(tag, foo)); |
| 424 | } |
| 425 | |
| 426 | return resp; |
| 427 | } |
| 428 | |
| 429 | /* transmit IPA CCM message */ |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 430 | private function f_ccm_tx(PDU_IPA_CCM ccm, IPL4asp_Types.ConnectionId conn_id) |
| 431 | runs on IPA_Emulation_CT { |
| 432 | var IPA_Send ipa_tx := valueof(t_IPA_Send(conn_id, IPAC_PROTO_CCM, enc_PDU_IPA_CCM(ccm))); |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 433 | log("CCM Tx:", ccm); |
| 434 | IPA_PORT.send(ipa_tx); |
| 435 | } |
| 436 | |
| 437 | template PDU_IPA_CCM ts_IPA_PONG := { |
| 438 | msg_type := IPAC_MSGT_PONG, |
| 439 | u := omit |
| 440 | } |
| 441 | |
| 442 | template PDU_IPA_CCM ts_IPA_ACK := { |
| 443 | msg_type := IPAC_MSGT_ID_ACK, |
| 444 | u := omit |
| 445 | } |
| 446 | |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 447 | template PDU_IPA_CCM ts_IPA_ID_GET := { |
| 448 | msg_type := IPAC_MSGT_ID_GET, |
| 449 | u := { |
| 450 | get := { |
Vadim Yanitskiy | 40ee56c | 2020-05-24 20:51:24 +0700 | [diff] [blame] | 451 | { 1, IPAC_IDTAG_UNITNAME }, |
| 452 | { 1, IPAC_IDTAG_UNITID } |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 453 | } |
| 454 | } |
| 455 | } |
| 456 | |
Vadim Yanitskiy | 11edf3c | 2020-05-24 22:26:54 +0700 | [diff] [blame] | 457 | template PDU_IPA_CCM tr_IPA_ID_RESP := { |
| 458 | msg_type := IPAC_MSGT_ID_RESP, |
| 459 | u := { |
| 460 | resp := { |
| 461 | { ?, IPAC_IDTAG_UNITNAME, ? }, |
| 462 | { ?, IPAC_IDTAG_UNITID, ? } |
| 463 | } |
| 464 | } |
| 465 | } |
| 466 | |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 467 | /* receive IPA CCM message */ |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 468 | private function f_ccm_rx_client(PDU_IPA_CCM ccm) runs on IPA_Emulation_CT { |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 469 | select (ccm.msg_type) { |
| 470 | case (IPAC_MSGT_PING) { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 471 | f_ccm_tx(valueof(ts_IPA_PONG), g_self_conn_id); |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 472 | } |
| 473 | case (IPAC_MSGT_ID_ACK) { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 474 | f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_ID_ACK, g_self_conn_id)); |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 475 | } |
| 476 | case (IPAC_MSGT_ID_GET) { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 477 | f_ccm_tx(f_ccm_make_id_resp(ccm), g_self_conn_id); |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 478 | } |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 479 | case else { |
| 480 | log("Unknown/unsupported IPA CCM message type", ccm); |
| 481 | } |
| 482 | } |
| 483 | } |
| 484 | |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 485 | private function f_ccm_rx_server(PDU_IPA_CCM ccm, IPL4asp_Types.ConnectionId conn_id) |
| 486 | runs on IPA_Emulation_CT { |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 487 | select (ccm.msg_type) { |
| 488 | case (IPAC_MSGT_PING) { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 489 | f_ccm_tx(valueof(ts_IPA_PONG), conn_id); |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 490 | } |
| 491 | case (IPAC_MSGT_ID_ACK) { |
| 492 | /* the IPA server should at some point receive an ID_ACK from the client, |
| 493 | * in case of RSL/OML from nanoBTS, this is actually the first message after |
| 494 | * the TCP connection is established. Other implementations may differ. |
| 495 | * We currently ignore it completely - but actually we should make sure that |
| 496 | * one ID_ACK is received by the server at some point */ |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 497 | f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_ID_ACK, conn_id)); |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 498 | } |
Harald Welte | 3bc387f | 2018-02-21 12:18:46 +0100 | [diff] [blame] | 499 | case (IPAC_MSGT_ID_RESP) { |
| 500 | log("IPA ID RESP: ", ccm.u.resp); |
Vadim Yanitskiy | 11edf3c | 2020-05-24 22:26:54 +0700 | [diff] [blame] | 501 | |
| 502 | /* make sure that the response contains all fields we requested */ |
| 503 | if (not match(ccm, tr_IPA_ID_RESP)) { |
| 504 | log("IPA identity response ", ccm.u.resp, " mismatch"); |
| 505 | return; |
| 506 | } |
| 507 | |
| 508 | /* forward to the upper layers, so they can map conn_id with unit_id */ |
| 509 | f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_ID_RESP, conn_id, ccm.u.resp)); |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 510 | /* acknowledge any identity that the client may have sent */ |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 511 | f_ccm_tx(valueof(ts_IPA_ACK), conn_id); |
Harald Welte | 3bc387f | 2018-02-21 12:18:46 +0100 | [diff] [blame] | 512 | } |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 513 | case else { |
| 514 | log("Unknown/unsupported IPA CCM message type", ccm); |
| 515 | } |
| 516 | } |
| 517 | } |
| 518 | |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 519 | private function f_to_asp(IPA_RecvFrom ipa_rx) return ASP_IPA_Unitdata { |
| 520 | var ASP_IPA_Unitdata ret := { |
| 521 | streamId := ipa_rx.streamId, |
Harald Welte | 2a8f847 | 2017-11-23 21:11:34 +0100 | [diff] [blame] | 522 | streamIdExt := ipa_rx.streamIdExt, |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 523 | payload := ipa_rx.msg |
| 524 | } |
| 525 | return ret; |
| 526 | } |
| 527 | |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 528 | private function f_from_asp(IPL4asp_Types.ConnectionId connId, ASP_IPA_Unitdata ipa_tx) return IPA_Send { |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 529 | var IPA_Send ret := valueof(t_IPA_Send(connId, ipa_tx.streamId, ipa_tx.payload, |
| 530 | ipa_tx.streamIdExt)); |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 531 | return ret; |
| 532 | } |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 533 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 534 | #ifdef IPA_EMULATION_RSL |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 535 | private function f_from_rsl(IPL4asp_Types.ConnectionId connId, ASP_RSL_Unitdata rsl_tx) return IPA_Send { |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 536 | var octetstring payload := enc_RSL_Message(rsl_tx.rsl); |
Vadim Yanitskiy | ef9bcd2 | 2020-05-25 19:01:04 +0700 | [diff] [blame] | 537 | |
| 538 | /* ASP_RSL_Unitdata may (optionally) contain TCP/IP connection ID */ |
| 539 | if (rsl_tx.conn_id != omit) { |
| 540 | connId := rsl_tx.conn_id; |
| 541 | } |
| 542 | |
| 543 | return valueof(t_IPA_Send(connId, rsl_tx.streamId, payload)); |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 544 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 545 | #endif |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 546 | |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 547 | #ifdef IPA_EMULATION_OML |
| 548 | private function f_from_oml(IPL4asp_Types.ConnectionId connId, OML_PDU oml_tx) return IPA_Send { |
| 549 | var octetstring payload := enc_OML_PDU(oml_tx); |
| 550 | var IPA_Send ret := valueof(t_IPA_Send(connId, IPAC_PROTO_OML, payload)); |
| 551 | return ret; |
| 552 | } |
| 553 | #endif |
| 554 | |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 555 | /* main function to use for a client-side IPA implementation */ |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 556 | function main_client(charstring remote_host, IPL4asp_Types.PortNumber remote_port, |
| 557 | charstring local_host, IPL4asp_Types.PortNumber local_port, |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 558 | IPA_CCM_Parameters ccm_pars := c_IPA_default_ccm_pars, |
| 559 | boolean ccm_enabled := true) runs on IPA_Emulation_CT { |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 560 | g_mode := IPA_MODE_CLIENT; |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 561 | g_ccm_enabled := ccm_enabled; |
Harald Welte | e09921f | 2017-12-07 17:49:00 +0100 | [diff] [blame] | 562 | f_connect(remote_host, remote_port, local_host, local_port, ccm_pars); |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 563 | if (g_ccm_enabled) { |
| 564 | /* we're a client: Send ID_ACK immediately after connect */ |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 565 | f_ccm_tx(valueof(ts_IPA_ACK), g_self_conn_id); |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 566 | } |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 567 | f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_UP, g_self_conn_id)); |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 568 | ScanEvents(); |
| 569 | } |
| 570 | |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 571 | /* main function to use for a server-side IPA implementation */ |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 572 | function main_server(charstring local_host, IPL4asp_Types.PortNumber local_port, |
Neels Hofmeyr | 3bf31d2 | 2018-08-24 14:44:32 +0200 | [diff] [blame] | 573 | boolean ccm_enabled := true, |
Pau Espin Pedrol | 2dc137c | 2021-01-28 19:53:21 +0100 | [diff] [blame] | 574 | IpaInitBehavior init_behavior := IPA_INIT_SEND_IPA_ID_GET, |
| 575 | boolean server_stop_on_ipa_ev_down := true) |
Neels Hofmeyr | 3bf31d2 | 2018-08-24 14:44:32 +0200 | [diff] [blame] | 576 | runs on IPA_Emulation_CT { |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 577 | g_mode := IPA_MODE_SERVER; |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 578 | g_ccm_enabled := ccm_enabled; |
Neels Hofmeyr | 3bf31d2 | 2018-08-24 14:44:32 +0200 | [diff] [blame] | 579 | g_init_behavior := init_behavior; |
Pau Espin Pedrol | 2dc137c | 2021-01-28 19:53:21 +0100 | [diff] [blame] | 580 | g_server_stop_on_ipa_ev_down := server_stop_on_ipa_ev_down; |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 581 | f_bind(local_host, local_port); |
| 582 | ScanEvents(); |
| 583 | } |
| 584 | |
Pau Espin Pedrol | acc5119 | 2019-06-11 15:35:19 +0200 | [diff] [blame] | 585 | #ifdef IPA_EMULATION_CTRL |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 586 | private function f_ctrl_to_user(octetstring msg) runs on IPA_Emulation_CT { |
| 587 | var charstring msg_ch := oct2char(msg); |
| 588 | IPA_CTRL_PORT.send(dec_CtrlMessage(msg_ch)); |
| 589 | } |
Pau Espin Pedrol | acc5119 | 2019-06-11 15:35:19 +0200 | [diff] [blame] | 590 | #endif |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 591 | |
| 592 | #ifdef IPA_EMULATION_GSUP |
| 593 | private function f_gsup_to_user(octetstring msg) runs on IPA_Emulation_CT { |
| 594 | var GSUP_PDU gsup := dec_GSUP_PDU(msg); |
| 595 | f_gsup_postprocess_decoded(gsup); |
| 596 | IPA_GSUP_PORT.send(gsup); |
| 597 | } |
| 598 | #endif |
| 599 | |
Harald Welte | 7460a72 | 2018-10-10 12:28:27 +0200 | [diff] [blame] | 600 | #ifdef IPA_EMULATION_RSPRO |
| 601 | private function f_rspro_to_user(octetstring msg) runs on IPA_Emulation_CT { |
| 602 | var RsproPDU rspro := dec_RsproPDU(msg); |
| 603 | IPA_RSPRO_PORT.send(rspro); |
| 604 | } |
| 605 | #endif |
| 606 | |
Pau Espin Pedrol | 6924ef7 | 2021-06-09 16:19:26 +0200 | [diff] [blame] | 607 | #ifdef IPA_EMULATION_OSMO_PCU |
| 608 | private function f_osmo_pcu_to_user(octetstring msg) runs on IPA_Emulation_CT { |
| 609 | var PCUIF_Message pcuif_msg := dec_PCUIF_Message(msg); |
| 610 | IPA_OSMO_PCU_PORT.send(pcuif_msg); |
| 611 | } |
| 612 | #endif |
| 613 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 614 | #ifdef IPA_EMULATION_MGCP |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 615 | private function f_mgcp_to_user(octetstring msg) runs on IPA_Emulation_CT { |
| 616 | var charstring msg_ch := oct2char(msg); |
| 617 | if (g_is_bsc_mgw) { |
| 618 | log("============"); |
| 619 | log(msg_ch); |
| 620 | IPA_MGCP_PORT.send(dec_MgcpCommand(msg_ch)); |
| 621 | } else { |
| 622 | IPA_MGCP_PORT.send(dec_MgcpResponse(msg_ch)); |
| 623 | } |
| 624 | } |
| 625 | |
Harald Welte | 92632e1 | 2017-11-25 02:31:20 +0100 | [diff] [blame] | 626 | private function f_mgcp_to_ud(octetstring payload) runs on IPA_Emulation_CT return ASP_IPA_Unitdata { |
| 627 | if (mp_ipa_mgcp_uses_osmo_ext) { |
| 628 | return valueof(t_ASP_IPA_UD(IPAC_PROTO_MGCP_OLD, payload)); |
| 629 | } else { |
| 630 | return valueof(t_ASP_IPA_UD(IPAC_PROTO_OSMO, payload, IPAC_PROTO_EXT_MGCP)); |
| 631 | } |
| 632 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 633 | #endif |
Harald Welte | 92632e1 | 2017-11-25 02:31:20 +0100 | [diff] [blame] | 634 | |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 635 | /* Resolve TCP/IP connection identifier depending on g_mode */ |
| 636 | private function f_ipa_conn_id() runs on IPA_Emulation_CT |
| 637 | return IPL4asp_Types.ConnectionId { |
| 638 | var IPL4asp_Types.ConnectionId conn_id; |
| 639 | |
| 640 | select (g_mode) { |
| 641 | case (IPA_MODE_CLIENT) { conn_id := g_self_conn_id; } |
| 642 | case (IPA_MODE_SERVER) { conn_id := g_last_conn_id; } |
| 643 | case else { |
| 644 | setverdict(fail, "Unknown mode"); |
| 645 | mtc.stop; |
| 646 | } |
| 647 | } |
| 648 | |
| 649 | if (conn_id == -1) { /* Just to be sure */ |
| 650 | setverdict(fail, "Connection is not established"); |
| 651 | mtc.stop; |
| 652 | } |
| 653 | |
| 654 | return conn_id; |
| 655 | } |
| 656 | |
Harald Welte | bdb6370 | 2017-12-09 01:15:44 +0100 | [diff] [blame] | 657 | /* main loop function for both client and server. 'thread' of the component */ |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 658 | private function ScanEvents() runs on IPA_Emulation_CT { |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 659 | var IPA_RecvFrom ipa_rx; |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 660 | var ASP_Event asp_evt; |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 661 | var Socket_API_Definitions.PortEvent port_evt; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 662 | var octetstring payload; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 663 | var ASP_IPA_Unitdata ipa_ud; |
Harald Welte | 3286eb3 | 2019-08-18 19:36:10 +0200 | [diff] [blame] | 664 | #ifdef IPA_EMULATION_CTRL |
| 665 | var CtrlMessage ctrl_msg; |
| 666 | #endif |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 667 | #ifdef IPA_EMULATION_SCCP |
| 668 | var ASP_MTP3_TRANSFERreq mtp_req; |
| 669 | #endif |
| 670 | #ifdef IPA_EMULATION_MGCP |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 671 | var MgcpCommand mgcp_cmd; |
| 672 | var MgcpResponse mgcp_rsp; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 673 | #endif |
| 674 | #ifdef IPA_EMULATION_GSUP |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 675 | var GSUP_PDU gsup_msg; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 676 | #endif |
| 677 | #ifdef IPA_EMULATION_RSL |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 678 | var ASP_RSL_Unitdata rsl; |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 679 | #endif |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 680 | #ifdef IPA_EMULATION_OML |
| 681 | var OML_PDU oml; |
| 682 | #endif |
Harald Welte | 7460a72 | 2018-10-10 12:28:27 +0200 | [diff] [blame] | 683 | #ifdef IPA_EMULATION_RSPRO |
| 684 | var RsproPDU rspro; |
| 685 | #endif |
Pau Espin Pedrol | 6924ef7 | 2021-06-09 16:19:26 +0200 | [diff] [blame] | 686 | #ifdef IPA_EMULATION_OSMO_PCU |
| 687 | var PCUIF_Message pcu; |
| 688 | #endif |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 689 | |
Harald Welte | 3e6ad89 | 2017-12-12 14:39:46 +0100 | [diff] [blame] | 690 | /* Set function for dissecting the binary */ |
| 691 | var f_IPL4_getMsgLen vl_f := refers(f_IPL4_fixedMsgLen); |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 692 | IPA_CodecPort_CtrlFunct.f_IPL4_setGetMsgLen(IPA_PORT, g_self_conn_id, vl_f, {0, 2, 3, 1, 0}); |
Harald Welte | 3e6ad89 | 2017-12-12 14:39:46 +0100 | [diff] [blame] | 693 | |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 694 | while (true) { |
| 695 | alt { |
| 696 | /* Received IPA -> up into SCCP stack */ |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 697 | [g_ccm_enabled] IPA_PORT.receive(IPA_RecvFrom:{?,IPAC_PROTO_CCM,omit,?}) -> value ipa_rx { |
| 698 | var PDU_IPA_CCM ccm := dec_PDU_IPA_CCM(ipa_rx.msg); |
| 699 | log("CCM Rx:", ccm); |
| 700 | select (g_mode) { |
| 701 | case (IPA_MODE_CLIENT) { |
| 702 | f_ccm_rx_client(ccm); |
| 703 | } |
| 704 | case (IPA_MODE_SERVER) { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 705 | f_ccm_rx_server(ccm, ipa_rx.connId); |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 706 | } |
| 707 | case else { |
| 708 | setverdict(fail, "Unknown mode"); |
Daniel Willmann | e4ff537 | 2018-07-05 17:35:03 +0200 | [diff] [blame] | 709 | mtc.stop; |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 710 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 711 | } |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 712 | } |
| 713 | [] IPA_PORT.receive(IPA_RecvFrom:?) -> value ipa_rx { |
| 714 | select (ipa_rx.streamId) { |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 715 | #ifdef IPA_EMULATION_SCCP |
| 716 | case (IPAC_PROTO_SCCP) { |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 717 | var ASP_MTP3_TRANSFERind mtp; |
| 718 | mtp := valueof(ts_MTP3_XFER_ind(0, ipa_rx.msg)); |
| 719 | MTP3_SP_PORT.send(mtp); |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 720 | } |
| 721 | #endif |
| 722 | #ifdef IPA_EMULATION_MGCP |
| 723 | case (IPAC_PROTO_MGCP_OLD) { |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 724 | f_mgcp_to_user(ipa_rx.msg); |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 725 | } |
| 726 | #endif |
| 727 | #ifdef IPA_EMULATION_RSL |
| 728 | case (t_IpaSidRSL) { |
Vadim Yanitskiy | ef9bcd2 | 2020-05-25 19:01:04 +0700 | [diff] [blame] | 729 | rsl := valueof(ts_ASP_RSL_UD( |
| 730 | rsl := dec_RSL_Message(ipa_rx.msg), |
| 731 | sid := ipa_rx.streamId, |
| 732 | conn_id := ipa_rx.connId |
| 733 | )); |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 734 | IPA_RSL_PORT.send(rsl); |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 735 | } |
| 736 | #endif |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 737 | #ifdef IPA_EMULATION_OML |
| 738 | case (IPAC_PROTO_OML) { |
| 739 | oml := dec_OML_PDU(ipa_rx.msg) |
| 740 | IPA_OML_PORT.send(oml); |
| 741 | } |
| 742 | #endif |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 743 | case (IPAC_PROTO_OSMO) { |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 744 | select (ipa_rx.streamIdExt) { |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 745 | #ifdef IPA_EMULATION_MGCP |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 746 | case (IPAC_PROTO_EXT_MGCP) { |
| 747 | f_mgcp_to_user(ipa_rx.msg); |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 748 | } |
| 749 | #endif |
Harald Welte | 3286eb3 | 2019-08-18 19:36:10 +0200 | [diff] [blame] | 750 | #ifdef IPA_EMULATION_CTRL |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 751 | case (IPAC_PROTO_EXT_CTRL) { |
Harald Welte | a76c4bb | 2017-12-09 02:06:07 +0100 | [diff] [blame] | 752 | f_ctrl_to_user(ipa_rx.msg); |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 753 | } |
Harald Welte | 3286eb3 | 2019-08-18 19:36:10 +0200 | [diff] [blame] | 754 | #endif |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 755 | #ifdef IPA_EMULATION_GSUP |
| 756 | case (IPAC_PROTO_EXT_GSUP) { |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 757 | f_gsup_to_user(ipa_rx.msg); |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 758 | } |
| 759 | #endif |
Harald Welte | 7460a72 | 2018-10-10 12:28:27 +0200 | [diff] [blame] | 760 | #ifdef IPA_EMULATION_RSPRO |
| 761 | case (IPAC_PROTO_EXT_RSPRO) { |
| 762 | f_rspro_to_user(ipa_rx.msg); |
| 763 | } |
| 764 | #endif |
Pau Espin Pedrol | 6924ef7 | 2021-06-09 16:19:26 +0200 | [diff] [blame] | 765 | #ifdef IPA_EMULATION_OSMO_PCU |
| 766 | case (IPAC_PROTO_EXT_OSMO_PCU) { |
| 767 | f_osmo_pcu_to_user(ipa_rx.msg); |
| 768 | } |
| 769 | #endif |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 770 | case else { |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 771 | IPA_SP_PORT.send(f_to_asp(ipa_rx)); |
| 772 | } |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 773 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 774 | } |
| 775 | case else { |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 776 | IPA_SP_PORT.send(f_to_asp(ipa_rx)); |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 777 | } |
| 778 | } |
| 779 | } |
| 780 | |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 781 | /* server only */ |
| 782 | [] IPA_PORT.receive(ASP_Event:{connOpened:=?}) -> value asp_evt { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 783 | g_last_conn_id := asp_evt.connOpened.connId; |
| 784 | log("Established a new IPA connection (conn_id=", g_last_conn_id, ")"); |
| 785 | |
| 786 | f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_UP, g_last_conn_id)); |
Harald Welte | 2d86aff | 2018-04-17 11:23:04 +0200 | [diff] [blame] | 787 | if (g_mode == IPA_MODE_SERVER and g_ccm_enabled) { |
Neels Hofmeyr | 3bf31d2 | 2018-08-24 14:44:32 +0200 | [diff] [blame] | 788 | select (g_init_behavior) { |
| 789 | case (IPA_INIT_SEND_IPA_ID_GET) { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 790 | f_ccm_tx(valueof(ts_IPA_ID_GET), g_last_conn_id); |
Neels Hofmeyr | 3bf31d2 | 2018-08-24 14:44:32 +0200 | [diff] [blame] | 791 | } |
| 792 | case (IPA_INIT_SEND_IPA_ID_ACK) { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 793 | f_ccm_tx(valueof(ts_IPA_ACK), g_last_conn_id); |
Neels Hofmeyr | 3bf31d2 | 2018-08-24 14:44:32 +0200 | [diff] [blame] | 794 | } |
| 795 | } |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 796 | } |
| 797 | } |
| 798 | |
| 799 | [] IPA_PORT.receive(ASP_Event:{connClosed:=?}) -> value asp_evt { |
| 800 | log("IPA: Closed"); |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 801 | g_self_conn_id := -1; |
| 802 | f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_DOWN, asp_evt.connClosed.connId)); |
Pau Espin Pedrol | 2dc137c | 2021-01-28 19:53:21 +0100 | [diff] [blame] | 803 | if (g_mode != IPA_MODE_SERVER or g_server_stop_on_ipa_ev_down) { |
| 804 | self.stop; |
| 805 | } |
Harald Welte | b3414b2 | 2017-11-23 18:22:10 +0100 | [diff] [blame] | 806 | } |
| 807 | |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 808 | [] IPA_PORT.receive(Socket_API_Definitions.PortEvent:{result:={errorCode:=ERROR_SOCKET, connId:=?, os_error_code:=?, os_error_text:=?}}) -> value port_evt { |
| 809 | log("PortEvent: ERROR_SOCKET: ", port_evt); |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 810 | g_self_conn_id := -1; |
| 811 | f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_DOWN, port_evt.result.connId)); |
Stefan Sperling | 830dc9d | 2018-02-12 21:08:28 +0100 | [diff] [blame] | 812 | self.stop; |
| 813 | } |
| 814 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 815 | #ifdef IPA_EMULATION_SCCP |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 816 | /* Received SCCP -> down into IPA */ |
| 817 | [] MTP3_SP_PORT.receive(ASP_MTP3_TRANSFERreq: ?) -> value mtp_req { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 818 | var IPA_Send ipa_tx := valueof(t_IPA_Send(f_ipa_conn_id(), IPAC_PROTO_SCCP, |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 819 | mtp_req.data)); |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 820 | IPA_PORT.send(ipa_tx); |
| 821 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 822 | #endif |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 823 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 824 | #ifdef IPA_EMULATION_MGCP |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 825 | /* Received MGCP -> down into IPA */ |
| 826 | [] IPA_MGCP_PORT.receive(MgcpCommand:?) -> value mgcp_cmd { |
Harald Welte | 92632e1 | 2017-11-25 02:31:20 +0100 | [diff] [blame] | 827 | payload := char2oct(enc_MgcpCommand(mgcp_cmd)); |
| 828 | ipa_ud := f_mgcp_to_ud(payload); |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 829 | IPA_PORT.send(f_from_asp(f_ipa_conn_id(), ipa_ud)); |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 830 | } |
| 831 | [] IPA_MGCP_PORT.receive(MgcpResponse:?) -> value mgcp_rsp { |
Harald Welte | 1dd8f37 | 2017-11-25 02:25:27 +0100 | [diff] [blame] | 832 | payload := char2oct(enc_MgcpResponse(mgcp_rsp)); |
Harald Welte | 92632e1 | 2017-11-25 02:31:20 +0100 | [diff] [blame] | 833 | ipa_ud := f_mgcp_to_ud(payload); |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 834 | IPA_PORT.send(f_from_asp(f_ipa_conn_id(), ipa_ud)); |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 835 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 836 | #endif |
Harald Welte | c82eef4 | 2017-11-24 20:40:12 +0100 | [diff] [blame] | 837 | |
Pau Espin Pedrol | acc5119 | 2019-06-11 15:35:19 +0200 | [diff] [blame] | 838 | #ifdef IPA_EMULATION_CTRL |
Harald Welte | a76c4bb | 2017-12-09 02:06:07 +0100 | [diff] [blame] | 839 | [] IPA_CTRL_PORT.receive(CtrlMessage:?) -> value ctrl_msg { |
| 840 | payload := char2oct(enc_CtrlMessage(ctrl_msg)); |
| 841 | ipa_ud := valueof(t_ASP_IPA_UD(IPAC_PROTO_OSMO, payload, IPAC_PROTO_EXT_CTRL)); |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 842 | IPA_PORT.send(f_from_asp(f_ipa_conn_id(), ipa_ud)); |
Harald Welte | a76c4bb | 2017-12-09 02:06:07 +0100 | [diff] [blame] | 843 | } |
Pau Espin Pedrol | acc5119 | 2019-06-11 15:35:19 +0200 | [diff] [blame] | 844 | #endif |
Harald Welte | a76c4bb | 2017-12-09 02:06:07 +0100 | [diff] [blame] | 845 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 846 | #ifdef IPA_EMULATION_GSUP |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 847 | [] IPA_GSUP_PORT.receive(GSUP_PDU:?) -> value gsup_msg { |
Harald Welte | 2f562b1 | 2018-01-24 20:52:38 +0100 | [diff] [blame] | 848 | f_gsup_preprocess_encoded(gsup_msg); |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 849 | payload := enc_GSUP_PDU(gsup_msg); |
| 850 | ipa_ud := valueof(t_ASP_IPA_UD(IPAC_PROTO_OSMO, payload, IPAC_PROTO_EXT_GSUP)); |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 851 | IPA_PORT.send(f_from_asp(f_ipa_conn_id(), ipa_ud)); |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 852 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 853 | #endif |
Harald Welte | df32723 | 2017-12-28 22:51:51 +0100 | [diff] [blame] | 854 | |
Harald Welte | 7460a72 | 2018-10-10 12:28:27 +0200 | [diff] [blame] | 855 | #ifdef IPA_EMULATION_RSPRO |
| 856 | [] IPA_RSPRO_PORT.receive(RsproPDU:?) -> value rspro { |
| 857 | payload := enc_RsproPDU(rspro); |
| 858 | ipa_ud := valueof(t_ASP_IPA_UD(IPAC_PROTO_OSMO, payload, IPAC_PROTO_EXT_RSPRO)); |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 859 | IPA_PORT.send(f_from_asp(f_ipa_conn_id(), ipa_ud)); |
Harald Welte | 7460a72 | 2018-10-10 12:28:27 +0200 | [diff] [blame] | 860 | } |
| 861 | #endif |
| 862 | |
Pau Espin Pedrol | 6924ef7 | 2021-06-09 16:19:26 +0200 | [diff] [blame] | 863 | #ifdef IPA_EMULATION_OSMO_PCU |
| 864 | [] IPA_OSMO_PCU_PORT.receive(PCUIF_Message:?) -> value pcu { |
| 865 | payload := enc_PCUIF_Message(pcu); |
| 866 | ipa_ud := valueof(t_ASP_IPA_UD(IPAC_PROTO_OSMO, payload, IPAC_PROTO_EXT_OSMO_PCU)); |
| 867 | IPA_PORT.send(f_from_asp(f_ipa_conn_id(), ipa_ud)); |
| 868 | } |
| 869 | #endif |
| 870 | |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 871 | #ifdef IPA_EMULATION_RSL |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 872 | /* Received RSL -> down into IPA */ |
| 873 | [] IPA_RSL_PORT.receive(ASP_RSL_Unitdata:?) -> value rsl { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 874 | IPA_PORT.send(f_from_rsl(f_ipa_conn_id(), rsl)); |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 875 | } |
Harald Welte | df27725 | 2018-02-20 15:49:30 +0100 | [diff] [blame] | 876 | #endif |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 877 | #ifdef IPA_EMULATION_OML |
| 878 | /* Received OML -> down into IPA */ |
| 879 | [] IPA_OML_PORT.receive(OML_PDU:?) -> value oml { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 880 | IPA_PORT.send(f_from_oml(f_ipa_conn_id(), oml)); |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 881 | } |
| 882 | [] IPA_OML_PORT.receive(octetstring:?) -> value payload { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 883 | IPA_PORT.send(t_IPA_Send(f_ipa_conn_id(), IPAC_PROTO_OML, payload)); |
Harald Welte | c682666 | 2019-02-06 22:26:46 +0100 | [diff] [blame] | 884 | } |
| 885 | #endif |
Harald Welte | 0d846a7 | 2017-12-07 17:58:28 +0100 | [diff] [blame] | 886 | /* Received MISC (OML/CTRL) -> down into IPA */ |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 887 | [] IPA_SP_PORT.receive(ASP_IPA_Unitdata: ?) -> value ipa_ud { |
Vadim Yanitskiy | 6643e8d | 2020-05-18 21:50:12 +0700 | [diff] [blame] | 888 | IPA_PORT.send(f_from_asp(f_ipa_conn_id(), ipa_ud)); |
Harald Welte | c76f29f | 2017-11-22 12:46:46 +0100 | [diff] [blame] | 889 | } |
| 890 | |
| 891 | |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 892 | } |
| 893 | } |
| 894 | } |
| 895 | |
Harald Welte | 2e32e43 | 2018-05-24 20:00:00 +0200 | [diff] [blame] | 896 | /*********************************************************************** |
| 897 | * IPA Event waiter component. Wait for ASP_IPA_EVENT_ID_ACK |
| 898 | ***********************************************************************/ |
| 899 | |
| 900 | type component IPA_EventWaiter_CT { |
| 901 | port IPA_SP_PT IPA_SP_PORT; |
| 902 | } |
| 903 | |
Vadim Yanitskiy | 61564be | 2020-05-18 20:44:14 +0700 | [diff] [blame] | 904 | function waiter_main(template ASP_IPA_Event wait_for := tr_ASP_IPA_EV(ASP_IPA_EVENT_ID_ACK)) |
Harald Welte | 2e32e43 | 2018-05-24 20:00:00 +0200 | [diff] [blame] | 905 | runs on IPA_EventWaiter_CT { |
| 906 | |
| 907 | alt { |
| 908 | [] IPA_SP_PORT.receive(wait_for) { |
| 909 | setverdict(pass); |
| 910 | } |
| 911 | [] IPA_SP_PORT.receive { repeat; } |
| 912 | } |
| 913 | } |
| 914 | |
| 915 | |
Harald Welte | d86cdc6 | 2017-11-22 00:45:07 +0100 | [diff] [blame] | 916 | } |