ttcn3
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osmo-ttcn3-hacks
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osmo-ttcn3-hacks/library/IPA_Emulation.ttcnpp

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module IPA_Emulation {
/* This module implements the IPA multiplex protocol on top of TCP, using the IPL4asp
* test-port as provider. It implements both client and server roles, as well was the CCM
* handshake for establishing the identity of the client to the server.
*
* It already knows certain well-known sub-protocols such as A-bis RSL, MGCP and SCCP and
* GSUP. IT hence transcodes messages so the user can work with abstract data types rather
* than binary messages. It handles multiple packets inside one TCP segment.
*
* (C) 2017-2019 by Harald Welte <laforge@gnumonks.org>
* contributions by sysmocom - s.f.m.c. GmbH
* 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
*/
import from IPA_Types all;
import from IPA_CodecPort all;
import from IPA_CodecPort_CtrlFunct all;
import from IPL4asp_Types all;
import from IPL4asp_PortType all;
import from Socket_API_Definitions all;
#ifdef IPA_EMULATION_SCCP
import from MTP3asp_Types all;
import from MTP3asp_PortType all;
#endif
#ifdef IPA_EMULATION_RSL
import from RSL_Types all;
#endif
#ifdef IPA_EMULATION_OML
import from AbisOML_Types all;
#endif
#ifdef IPA_EMULATION_MGCP
import from MGCP_Types all;
#endif
#ifdef IPA_EMULATION_GSUP
import from GSUP_Types all;
#endif
#ifdef IPA_EMULATION_RSPRO
import from RSPRO all;
import from RSPRO_Types all;
#endif
#ifdef IPA_EMULATION_CTRL
import from Osmocom_CTRL_Types all;
#endif
modulepar {
/* Use Osmocom extended IPA mux header */
boolean mp_ipa_mgcp_uses_osmo_ext := true;
}
type enumerated IpaMode {
IPA_MODE_CLIENT,
IPA_MODE_SERVER
}
type enumerated IpaInitBehavior {
IPA_INIT_SEND_IPA_ID_GET,
IPA_INIT_SEND_IPA_ID_ACK
}
type record ASP_IPA_Unitdata {
IpaStreamId streamId,
IpaExtStreamId streamIdExt optional,
octetstring payload
}
type enumerated ASP_IPA_EventType {
ASP_IPA_EVENT_DOWN,
ASP_IPA_EVENT_UP,
ASP_IPA_EVENT_ID_ACK
}
/* an event indicating us whether or not a connection is physically up or down,
* and whether we have received an ID_ACK */
type union ASP_IPA_Event {
ASP_IPA_EventType up_down
}
template (value) ASP_IPA_Event ts_ASP_IPA_EV(ASP_IPA_EventType ud) := {
up_down := ud
}
template ASP_IPA_Event tr_ASP_IPA_EV(template ASP_IPA_EventType ud) := {
up_down := ud
}
template ASP_IPA_Unitdata t_ASP_IPA_UD(IpaStreamId sid, octetstring pl,
template IpaExtStreamId esid := omit) := {
streamId := sid,
streamIdExt := esid,
payload := pl
}
#ifdef IPA_EMULATION_RSL
/* like ASP_IPA_Unitdata, but with RSL_Message abstract type instead of octetstring */
type record ASP_RSL_Unitdata {
IpaStreamId streamId,
RSL_Message rsl
};
template (value) ASP_RSL_Unitdata ts_ASP_RSL_UD(template (value) RSL_Message rsl,
IpaStreamId sid := IPAC_PROTO_RSL_TRX0) := {
streamId := sid,
rsl := rsl
}
template ASP_RSL_Unitdata tr_ASP_RSL_UD(template (present) RSL_Message rsl,
template IpaStreamId sid := IPAC_PROTO_RSL_TRX0) := {
streamId := sid,
rsl := rsl
}
template IpaStreamId t_IpaSidRSL := ( IPAC_PROTO_RSL_TRX0, IPAC_PROTO_RSL_TRX1,
IPAC_PROTO_RSL_TRX2, IPAC_PROTO_RSL_TRX3 );
#endif
/* Client port for general IPA messages, not further decoded */
type port IPA_SP_PT message {
inout ASP_IPA_Unitdata, ASP_IPA_Event;
} with { extension "internal" }
#ifdef IPA_EMULATION_MGCP
/* Client port for MGCP inside IPA */
type port IPA_MGCP_PT message {
inout MgcpCommand, MgcpResponse;
} with { extension "internal" }
#endif
#ifdef IPA_EMULATION_RSL
/* Client port for A-bis RSL inside IPA */
type port IPA_RSL_PT message {
inout ASP_RSL_Unitdata, ASP_IPA_Event;
} with { extension "internal" }
#endif
#ifdef IPA_EMULATION_OML
/* Client port for A-bis OML inside IPA */
type port IPA_OML_PT message {
inout OML_PDU, octetstring, ASP_IPA_Event;
} with { extension "internal" }
#endif
#ifdef IPA_EMULATION_CTRL
/* Client port for CTRL inside IPA */
type port IPA_CTRL_PT message {
inout CtrlMessage, ASP_IPA_Event;
} with { extension "internal" }
#endif
#ifdef IPA_EMULATION_GSUP
/* Client port for CTRL inside IPA */
type port IPA_GSUP_PT message {
inout GSUP_PDU, ASP_IPA_Event;
} with { extension "internal" }
#endif
#ifdef IPA_EMULATION_RSPRO
type port IPA_RSPRO_PT message {
inout RsproPDU, ASP_IPA_Event;
} with { extension "internal" }
#endif
type component IPA_Emulation_CT {
/* down-facing port to IPA codec port */
port IPA_CODEC_PT IPA_PORT;
#ifdef IPA_EMULATION_SCCP
/* up-facing port to SCCP */
port MTP3asp_SP_PT MTP3_SP_PORT;
#endif
#ifdef IPA_EMULATION_MGCP
/* up-facing port for MGCP */
port IPA_MGCP_PT IPA_MGCP_PORT;
#endif
#ifdef IPA_EMULATION_RSL
/* up-facing port for RSL */
port IPA_RSL_PT IPA_RSL_PORT;
#endif
#ifdef IPA_EMULATION_OML
/* up-facing port for OML */
port IPA_OML_PT IPA_OML_PORT;
#endif
#ifdef IPA_EMULATION_CTRL
/* up-facing port for CTRL */
port IPA_CTRL_PT IPA_CTRL_PORT;
#endif
#ifdef IPA_EMULATION_GSUP
/* up-facing port for GSUP */
port IPA_GSUP_PT IPA_GSUP_PORT;
#endif
#ifdef IPA_EMULATION_RSPRO
/* up-facing port for RSPRO */
port IPA_RSPRO_PT IPA_RSPRO_PORT;
#endif
/* up-facing port for other streams */
port IPA_SP_PT IPA_SP_PORT;
var boolean g_initialized := false;
var IPL4asp_Types.ConnectionId g_ipa_conn_id := -1;
/* Are we a BSC/MGW (truel) or MSC (false) */
var boolean g_is_bsc_mgw;
var IpaMode g_mode;
var boolean g_ccm_enabled;
var IpaInitBehavior g_init_behavior;
var IPA_CCM_Parameters g_ccm_pars := c_IPA_default_ccm_pars;
}
type record IPA_CCM_Parameters {
charstring ser_nr optional,
charstring name optional,
charstring location1 optional,
charstring location2 optional,
charstring equip_version optional,
charstring sw_version optional,
charstring ip_addr optional,
charstring mac_addr optional,
charstring unit_id optional,
charstring osmo_rand optional
}
const IPA_CCM_Parameters c_IPA_default_ccm_pars := {
ser_nr := "",
name := "mahlzeit",
location1 := "",
location2 := "",
equip_version := "",
sw_version := "",
ip_addr := "",
mac_addr := "",
unit_id := "0/1/2",
osmo_rand := ""
};
/* Function to use to connect as client to a remote IPA Server */
function f_connect(charstring remote_host, IPL4asp_Types.PortNumber remote_port,
charstring local_host, IPL4asp_Types.PortNumber local_port,
IPA_CCM_Parameters ccm_pars := c_IPA_default_ccm_pars) runs on IPA_Emulation_CT {
var IPL4asp_Types.Result res;
res := IPA_CodecPort_CtrlFunct.f_IPL4_connect(IPA_PORT, remote_host, remote_port,
local_host, local_port, 0, { tcp:={} });
if (not ispresent(res.connId)) {
setverdict(fail, "Could not connect IPA socket from ", local_host, " port ", local_port,
" to ", remote_host, " port ", remote_port, "; check your configuration");
mtc.stop;
}
g_ipa_conn_id := res.connId;
g_ccm_pars := ccm_pars;
g_is_bsc_mgw := true;
}
/* Function to use to bind to a local port as IPA server, accepting remote clients */
function f_bind(charstring local_host, IPL4asp_Types.PortNumber local_port,
IPA_CCM_Parameters ccm_pars := c_IPA_default_ccm_pars) runs on IPA_Emulation_CT {
var IPL4asp_Types.Result res;
res := IPA_CodecPort_CtrlFunct.f_IPL4_listen(IPA_PORT,
local_host, local_port, { tcp:={} });
if (not ispresent(res.connId)) {
setverdict(fail, "Could not listen IPA socket ", local_host, ":", local_port, ", check your configuration");
mtc.stop;
}
g_ipa_conn_id := res.connId;
g_ccm_pars := ccm_pars;
g_is_bsc_mgw := false;
}
#ifdef IPA_EMULATION_SCCP
template ASP_MTP3_TRANSFERind ts_MTP3_XFER_ind(integer opc, octetstring data) := {
sio := { '10'B, '00'B, '0011'B },
opc := opc,
dpc := 0,
sls := 0,
data := data
}
#endif
private template IpaCcmRespPart t_IdRespPart(IpaCcmIdTag tag, charstring payload) := {
len := 0, /* overwritten by codec */
tag := tag,
data := char2oct(payload) & '00'O
}
private function f_send_IPA_EVT(template (value) ASP_IPA_Event evt) runs on IPA_Emulation_CT {
if (IPA_SP_PORT.checkstate("Connected")) {
IPA_SP_PORT.send(evt);
}
#ifdef IPA_EMULATION_RSL
if (IPA_RSL_PORT.checkstate("Connected")) {
IPA_RSL_PORT.send(evt);
}
#endif
#ifdef IPA_EMULATION_OML
if (IPA_OML_PORT.checkstate("Connected")) {
IPA_OML_PORT.send(evt);
}
#endif
#ifdef IPA_EMULATION_CTRL
if (IPA_CTRL_PORT.checkstate("Connected")) {
IPA_CTRL_PORT.send(evt);
}
#endif
#ifdef IPA_EMULATION_GSUP
if (IPA_GSUP_PORT.checkstate("Connected")) {
IPA_GSUP_PORT.send(evt);
}
#endif
#ifdef IPA_EMULATION_RSPRO
if (IPA_RSPRO_PORT.checkstate("Connected")) {
IPA_RSPRO_PORT.send(evt);
}
#endif
/* FIXME: to other ports */
}
/* build IPA CCM ID RESP response from IPA CCM GET */
private function f_ccm_make_id_resp(PDU_IPA_CCM get) runs on IPA_Emulation_CT return PDU_IPA_CCM {
var integer i;
var PDU_IPA_CCM resp := {
msg_type := IPAC_MSGT_ID_RESP,
u := {
resp := {}
}
}
for (i := 0; i < sizeof(get.u.get); i := i + 1) {
var IpaCcmIdTag tag := get.u.get[i].tag;
var charstring foo;
select (tag) {
case (IPAC_IDTAG_SERNR) {
foo := g_ccm_pars.ser_nr;
}
case (IPAC_IDTAG_UNITNAME) {
foo := g_ccm_pars.name;
}
case (IPAC_IDTAG_LOCATION1) {
foo := g_ccm_pars.location1;
}
case (IPAC_IDTAG_LOCATION2) {
foo := g_ccm_pars.location2;
}
case (IPAC_IDTAG_EQUIPVERS) {
foo := g_ccm_pars.equip_version;
}
case (IPAC_IDTAG_SWVERSION) {
foo := g_ccm_pars.sw_version;
}
case (IPAC_IDTAG_IPADDR) {
foo := g_ccm_pars.ip_addr;
}
case (IPAC_IDTAG_MACADDR) {
foo := g_ccm_pars.mac_addr;
}
case (IPAC_IDTAG_UNITID) {
foo := g_ccm_pars.unit_id;
}
case (IPAC_IDTAG_OSMO_RAND) {
foo := g_ccm_pars.osmo_rand;
}
case else {
foo := "unknown";
}
}
resp.u.resp[sizeof(resp.u.resp)] := valueof(t_IdRespPart(tag, foo));
}
return resp;
}
/* transmit IPA CCM message */
private function f_ccm_tx(PDU_IPA_CCM ccm) runs on IPA_Emulation_CT {
var IPA_Send ipa_tx := valueof(t_IPA_Send(g_ipa_conn_id, IPAC_PROTO_CCM, enc_PDU_IPA_CCM(ccm)));
log("CCM Tx:", ccm);
IPA_PORT.send(ipa_tx);
}
template PDU_IPA_CCM ts_IPA_PONG := {
msg_type := IPAC_MSGT_PONG,
u := omit
}
template PDU_IPA_CCM ts_IPA_ACK := {
msg_type := IPAC_MSGT_ID_ACK,
u := omit
}
template PDU_IPA_CCM ts_IPA_ID_GET := {
msg_type := IPAC_MSGT_ID_GET,
u := {
get := {
{ 1, IPAC_IDTAG_UNITNAME }
}
}
}
/* receive IPA CCM message */
private function f_ccm_rx_client(PDU_IPA_CCM ccm) runs on IPA_Emulation_CT {
select (ccm.msg_type) {
case (IPAC_MSGT_PING) {
f_ccm_tx(valueof(ts_IPA_PONG));
}
case (IPAC_MSGT_ID_ACK) {
f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_ID_ACK));
}
case (IPAC_MSGT_ID_GET) {
f_ccm_tx(f_ccm_make_id_resp(ccm));
}
case else {
log("Unknown/unsupported IPA CCM message type", ccm);
}
}
}
private function f_ccm_rx_server(PDU_IPA_CCM ccm) runs on IPA_Emulation_CT {
select (ccm.msg_type) {
case (IPAC_MSGT_PING) {
f_ccm_tx(valueof(ts_IPA_PONG));
}
case (IPAC_MSGT_ID_ACK) {
/* the IPA server should at some point receive an ID_ACK from the client,
* in case of RSL/OML from nanoBTS, this is actually the first message after
* the TCP connection is established. Other implementations may differ.
* We currently ignore it completely - but actually we should make sure that
* one ID_ACK is received by the server at some point */
f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_ID_ACK));
}
case (IPAC_MSGT_ID_RESP) {
log("IPA ID RESP: ", ccm.u.resp);
/* acknowledge any identity that the client may have sent */
f_ccm_tx(valueof(ts_IPA_ACK));
}
case else {
log("Unknown/unsupported IPA CCM message type", ccm);
}
}
}
private function f_to_asp(IPA_RecvFrom ipa_rx) return ASP_IPA_Unitdata {
var ASP_IPA_Unitdata ret := {
streamId := ipa_rx.streamId,
streamIdExt := ipa_rx.streamIdExt,
payload := ipa_rx.msg
}
return ret;
}
private function f_from_asp(IPL4asp_Types.ConnectionId connId, ASP_IPA_Unitdata ipa_tx) return IPA_Send {
var IPA_Send ret := valueof(t_IPA_Send(connId, ipa_tx.streamId, ipa_tx.payload,
ipa_tx.streamIdExt));
return ret;
}
#ifdef IPA_EMULATION_RSL
private function f_from_rsl(IPL4asp_Types.ConnectionId connId, ASP_RSL_Unitdata rsl_tx) return IPA_Send {
var octetstring payload := enc_RSL_Message(rsl_tx.rsl);
var IPA_Send ret := valueof(t_IPA_Send(connId, rsl_tx.streamId, payload));
return ret;
}
#endif
#ifdef IPA_EMULATION_OML
private function f_from_oml(IPL4asp_Types.ConnectionId connId, OML_PDU oml_tx) return IPA_Send {
var octetstring payload := enc_OML_PDU(oml_tx);
var IPA_Send ret := valueof(t_IPA_Send(connId, IPAC_PROTO_OML, payload));
return ret;
}
#endif
/* main function to use for a client-side IPA implementation */
function main_client(charstring remote_host, IPL4asp_Types.PortNumber remote_port,
charstring local_host, IPL4asp_Types.PortNumber local_port,
IPA_CCM_Parameters ccm_pars := c_IPA_default_ccm_pars,
boolean ccm_enabled := true) runs on IPA_Emulation_CT {
g_mode := IPA_MODE_CLIENT;
g_ccm_enabled := ccm_enabled;
f_connect(remote_host, remote_port, local_host, local_port, ccm_pars);
if (g_ccm_enabled) {
/* we're a client: Send ID_ACK immediately after connect */
f_ccm_tx(valueof(ts_IPA_ACK));
}
f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_UP));
ScanEvents();
}
/* main function to use for a server-side IPA implementation */
function main_server(charstring local_host, IPL4asp_Types.PortNumber local_port,
boolean ccm_enabled := true,
IpaInitBehavior init_behavior := IPA_INIT_SEND_IPA_ID_GET)
runs on IPA_Emulation_CT {
g_mode := IPA_MODE_SERVER;
g_ccm_enabled := ccm_enabled;
g_init_behavior := init_behavior;
f_bind(local_host, local_port);
ScanEvents();
}
#ifdef IPA_EMULATION_CTRL
private function f_ctrl_to_user(octetstring msg) runs on IPA_Emulation_CT {
var charstring msg_ch := oct2char(msg);
IPA_CTRL_PORT.send(dec_CtrlMessage(msg_ch));
}
#endif
#ifdef IPA_EMULATION_GSUP
private function f_gsup_to_user(octetstring msg) runs on IPA_Emulation_CT {
var GSUP_PDU gsup := dec_GSUP_PDU(msg);
f_gsup_postprocess_decoded(gsup);
IPA_GSUP_PORT.send(gsup);
}
#endif
#ifdef IPA_EMULATION_RSPRO
private function f_rspro_to_user(octetstring msg) runs on IPA_Emulation_CT {
var RsproPDU rspro := dec_RsproPDU(msg);
IPA_RSPRO_PORT.send(rspro);
}
#endif
#ifdef IPA_EMULATION_MGCP
private function f_mgcp_to_user(octetstring msg) runs on IPA_Emulation_CT {
var charstring msg_ch := oct2char(msg);
if (g_is_bsc_mgw) {
log("============");
log(msg_ch);
IPA_MGCP_PORT.send(dec_MgcpCommand(msg_ch));
} else {
IPA_MGCP_PORT.send(dec_MgcpResponse(msg_ch));
}
}
private function f_mgcp_to_ud(octetstring payload) runs on IPA_Emulation_CT return ASP_IPA_Unitdata {
if (mp_ipa_mgcp_uses_osmo_ext) {
return valueof(t_ASP_IPA_UD(IPAC_PROTO_MGCP_OLD, payload));
} else {
return valueof(t_ASP_IPA_UD(IPAC_PROTO_OSMO, payload, IPAC_PROTO_EXT_MGCP));
}
}
#endif
/* main loop function for both client and server. 'thread' of the component */
private function ScanEvents() runs on IPA_Emulation_CT {
var IPA_RecvFrom ipa_rx;
var ASP_Event asp_evt;
var Socket_API_Definitions.PortEvent port_evt;
var octetstring payload;
var ASP_IPA_Unitdata ipa_ud;
#ifdef IPA_EMULATION_CTRL
var CtrlMessage ctrl_msg;
#endif
#ifdef IPA_EMULATION_SCCP
var ASP_MTP3_TRANSFERreq mtp_req;
#endif
#ifdef IPA_EMULATION_MGCP
var MgcpCommand mgcp_cmd;
var MgcpResponse mgcp_rsp;
#endif
#ifdef IPA_EMULATION_GSUP
var GSUP_PDU gsup_msg;
#endif
#ifdef IPA_EMULATION_RSL
var ASP_RSL_Unitdata rsl;
#endif
#ifdef IPA_EMULATION_OML
var OML_PDU oml;
#endif
#ifdef IPA_EMULATION_RSPRO
var RsproPDU rspro;
#endif
/* Set function for dissecting the binary */
var f_IPL4_getMsgLen vl_f := refers(f_IPL4_fixedMsgLen);
IPA_CodecPort_CtrlFunct.f_IPL4_setGetMsgLen(IPA_PORT, g_ipa_conn_id, vl_f, {0, 2, 3, 1, 0});
while (true) {
alt {
/* Received IPA -> up into SCCP stack */
[g_ccm_enabled] IPA_PORT.receive(IPA_RecvFrom:{?,IPAC_PROTO_CCM,omit,?}) -> value ipa_rx {
var PDU_IPA_CCM ccm := dec_PDU_IPA_CCM(ipa_rx.msg);
log("CCM Rx:", ccm);
select (g_mode) {
case (IPA_MODE_CLIENT) {
f_ccm_rx_client(ccm);
}
case (IPA_MODE_SERVER) {
f_ccm_rx_server(ccm);
}
case else {
setverdict(fail, "Unknown mode");
mtc.stop;
}
}
}
[] IPA_PORT.receive(IPA_RecvFrom:?) -> value ipa_rx {
select (ipa_rx.streamId) {
#ifdef IPA_EMULATION_SCCP
case (IPAC_PROTO_SCCP) {
var ASP_MTP3_TRANSFERind mtp;
mtp := valueof(ts_MTP3_XFER_ind(0, ipa_rx.msg));
MTP3_SP_PORT.send(mtp);
}
#endif
#ifdef IPA_EMULATION_MGCP
case (IPAC_PROTO_MGCP_OLD) {
f_mgcp_to_user(ipa_rx.msg);
}
#endif
#ifdef IPA_EMULATION_RSL
case (t_IpaSidRSL) {
rsl := {
streamId := ipa_rx.streamId,
rsl := dec_RSL_Message(ipa_rx.msg)
};
IPA_RSL_PORT.send(rsl);
}
#endif
#ifdef IPA_EMULATION_OML
case (IPAC_PROTO_OML) {
oml := dec_OML_PDU(ipa_rx.msg)
IPA_OML_PORT.send(oml);
}
#endif
case (IPAC_PROTO_OSMO) {
select (ipa_rx.streamIdExt) {
#ifdef IPA_EMULATION_MGCP
case (IPAC_PROTO_EXT_MGCP) {
f_mgcp_to_user(ipa_rx.msg);
}
#endif
#ifdef IPA_EMULATION_CTRL
case (IPAC_PROTO_EXT_CTRL) {
f_ctrl_to_user(ipa_rx.msg);
}
#endif
#ifdef IPA_EMULATION_GSUP
case (IPAC_PROTO_EXT_GSUP) {
f_gsup_to_user(ipa_rx.msg);
}
#endif
#ifdef IPA_EMULATION_RSPRO
case (IPAC_PROTO_EXT_RSPRO) {
f_rspro_to_user(ipa_rx.msg);
}
#endif
case else {
IPA_SP_PORT.send(f_to_asp(ipa_rx));
}
}
}
case else {
IPA_SP_PORT.send(f_to_asp(ipa_rx));
}
}
}
/* server only */
[] IPA_PORT.receive(ASP_Event:{connOpened:=?}) -> value asp_evt {
log("IPA: Connected");
g_ipa_conn_id := asp_evt.connOpened.connId;
f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_UP));
if (g_mode == IPA_MODE_SERVER and g_ccm_enabled) {
select (g_init_behavior) {
case (IPA_INIT_SEND_IPA_ID_GET) {
f_ccm_tx(valueof(ts_IPA_ID_GET));
}
case (IPA_INIT_SEND_IPA_ID_ACK) {
f_ccm_tx(valueof(ts_IPA_ACK));
}
}
}
}
[] IPA_PORT.receive(ASP_Event:{connClosed:=?}) -> value asp_evt {
log("IPA: Closed");
g_ipa_conn_id := -1;
f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_DOWN));
self.stop;
}
[] IPA_PORT.receive(Socket_API_Definitions.PortEvent:{result:={errorCode:=ERROR_SOCKET, connId:=?, os_error_code:=?, os_error_text:=?}}) -> value port_evt {
log("PortEvent: ERROR_SOCKET: ", port_evt);
g_ipa_conn_id := -1;
f_send_IPA_EVT(ts_ASP_IPA_EV(ASP_IPA_EVENT_DOWN));
self.stop;
}
#ifdef IPA_EMULATION_SCCP
/* Received SCCP -> down into IPA */
[] MTP3_SP_PORT.receive(ASP_MTP3_TRANSFERreq: ?) -> value mtp_req {
var IPA_Send ipa_tx := valueof(t_IPA_Send(g_ipa_conn_id, IPAC_PROTO_SCCP,
mtp_req.data));
IPA_PORT.send(ipa_tx);
}
#endif
#ifdef IPA_EMULATION_MGCP
/* Received MGCP -> down into IPA */
[] IPA_MGCP_PORT.receive(MgcpCommand:?) -> value mgcp_cmd {
payload := char2oct(enc_MgcpCommand(mgcp_cmd));
ipa_ud := f_mgcp_to_ud(payload);
IPA_PORT.send(f_from_asp(g_ipa_conn_id, ipa_ud));
}
[] IPA_MGCP_PORT.receive(MgcpResponse:?) -> value mgcp_rsp {
payload := char2oct(enc_MgcpResponse(mgcp_rsp));
ipa_ud := f_mgcp_to_ud(payload);
IPA_PORT.send(f_from_asp(g_ipa_conn_id, ipa_ud));
}
#endif
#ifdef IPA_EMULATION_CTRL
[] IPA_CTRL_PORT.receive(CtrlMessage:?) -> value ctrl_msg {
payload := char2oct(enc_CtrlMessage(ctrl_msg));
ipa_ud := valueof(t_ASP_IPA_UD(IPAC_PROTO_OSMO, payload, IPAC_PROTO_EXT_CTRL));
IPA_PORT.send(f_from_asp(g_ipa_conn_id, ipa_ud));
}
#endif
#ifdef IPA_EMULATION_GSUP
[] IPA_GSUP_PORT.receive(GSUP_PDU:?) -> value gsup_msg {
f_gsup_preprocess_encoded(gsup_msg);
payload := enc_GSUP_PDU(gsup_msg);
ipa_ud := valueof(t_ASP_IPA_UD(IPAC_PROTO_OSMO, payload, IPAC_PROTO_EXT_GSUP));
IPA_PORT.send(f_from_asp(g_ipa_conn_id, ipa_ud));
}
#endif
#ifdef IPA_EMULATION_RSPRO
[] IPA_RSPRO_PORT.receive(RsproPDU:?) -> value rspro {
payload := enc_RsproPDU(rspro);
ipa_ud := valueof(t_ASP_IPA_UD(IPAC_PROTO_OSMO, payload, IPAC_PROTO_EXT_RSPRO));
IPA_PORT.send(f_from_asp(g_ipa_conn_id, ipa_ud));
}
#endif
#ifdef IPA_EMULATION_RSL
/* Received RSL -> down into IPA */
[] IPA_RSL_PORT.receive(ASP_RSL_Unitdata:?) -> value rsl {
IPA_PORT.send(f_from_rsl(g_ipa_conn_id, rsl));
}
#endif
#ifdef IPA_EMULATION_OML
/* Received OML -> down into IPA */
[] IPA_OML_PORT.receive(OML_PDU:?) -> value oml {
IPA_PORT.send(f_from_oml(g_ipa_conn_id, oml));
}
[] IPA_OML_PORT.receive(octetstring:?) -> value payload {
IPA_PORT.send(t_IPA_Send(g_ipa_conn_id, IPAC_PROTO_OML, payload));
}
#endif
/* Received MISC (OML/CTRL) -> down into IPA */
[] IPA_SP_PORT.receive(ASP_IPA_Unitdata: ?) -> value ipa_ud {
IPA_PORT.send(f_from_asp(g_ipa_conn_id, ipa_ud));
}
}
}
}
/***********************************************************************
* IPA Event waiter component. Wait for ASP_IPA_EVENT_ID_ACK
***********************************************************************/
type component IPA_EventWaiter_CT {
port IPA_SP_PT IPA_SP_PORT;
}
function waiter_main(template ASP_IPA_Event wait_for := tr_ASP_IPA_EV(ASP_IPA_EVENT_ID_ACK))
runs on IPA_EventWaiter_CT {
alt {
[] IPA_SP_PORT.receive(wait_for) {
setverdict(pass);
}
[] IPA_SP_PORT.receive { repeat; }
}
}
}
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