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osmo-ttcn3-hacks
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sip: tweak failure reporting for SIP messages 

Help developers by logging message matching failures in detail.

Change-Id: Id48016657ebb83953fe74f65332f318edf8f75e6
This commit is contained in:
Neels Hofmeyr 2023-09-12 02:16:43 +02:00 committed by neels
parent d3cca1dffc
commit c35b657916
1 changed files with 46 additions and 33 deletions
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79
sip/SIP_Tests.ttcn
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@ -188,11 +188,32 @@ template (value) ConnHdlrPars t_Pars := {
g_cp := omit
}
altstep as_SIP_expect_resp(template PDU_SIP_Response sip_expect) runs on ConnHdlr
{
[] SIP.receive(sip_expect);
[] SIP.receive {
log("FAIL: expected SIP message ", sip_expect);
Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Received unexpected SIP message");
}
}
function f_SIP_expect_req(template PDU_SIP_Request sip_expect) runs on ConnHdlr return PDU_SIP_Request
{
var PDU_SIP_Request rx;
alt {
[] SIP.receive(sip_expect) -> value rx;
[] SIP.receive {
log("FAIL: expected SIP message ", sip_expect);
Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Received unexpected SIP message");
}
}
return rx;
}
/* Establish a mobile terminated call described in 'cp' */
function f_establish_mt(inout CallPars cp) runs on ConnHdlr {
var template SipAddr sip_addr_gsm := tr_SipAddr_from_val(cp.comp.sip_url_gsm);
var template SipAddr sip_addr_ext := tr_SipAddr_from_val(cp.comp.sip_url_ext);
var PDU_SIP_Response sip_resp;
var MNCC_PDU mncc;
/* Ask MNCC_Emulation to "expect" a call to the given called number */
@ -202,8 +223,8 @@ function f_establish_mt(inout CallPars cp) runs on ConnHdlr {
SIP.send(ts_SIP_INVITE(cp.comp.sip_call_id, cp.comp.sip_url_ext, cp.comp.sip_url_gsm,
cp.comp.sip_seq_nr, cp.comp.sip_body));
/* OSC -> SIP */
SIP.receive(tr_SIP_Response(cp.comp.sip_call_id, sip_addr_ext, sip_addr_gsm, *,
"INVITE", 100, ?, "Trying", *));
as_SIP_expect_resp(tr_SIP_Response(cp.comp.sip_call_id, sip_addr_ext, sip_addr_gsm, *,
"INVITE", 100, ?, "Trying", *));
alt {
/* MSC <- OSC: OSC generates MNCC_SETUP_REQ from INVITE */
@ -231,33 +252,23 @@ function f_establish_mt(inout CallPars cp) runs on ConnHdlr {
/* MSC -> OSC: After MS is ringing and sent CC ALERTING */
MNCC.send(ts_MNCC_ALERT_ind(cp.mncc_call_id));
SIP.clear;
alt {
[] SIP.receive(tr_SIP_Response(cp.comp.sip_call_id, sip_addr_ext, sip_addr_gsm, *,
"INVITE", 180, ?, "Ringing", *));
[] SIP.receive {
setverdict(fail, "Received unexpected respose");
SIP.send(ts_SIP_ACK(cp.comp.sip_call_id, cp.comp.sip_url_ext, cp.comp.sip_url_gsm,
cp.comp.sip_seq_nr, omit));
mtc.stop;
}
}
as_SIP_expect_resp(tr_SIP_Response(cp.comp.sip_call_id, sip_addr_ext, sip_addr_gsm, *,
"INVITE", 180, ?, "Ringing", *));
/* MSC -> OSC: After MT user has picked up and sent CC CONNECT */
MNCC.send(ts_MNCC_SETUP_CNF(cp.mncc_call_id));
SIP.clear;
interleave {
/* MSC <- OSC: OSC asks MSC to connect its RTP stream to remote end */
[] MNCC.receive(tr_MNCC_RTP_CONNECT(cp.mncc_call_id, f_addrstr2addr(cp.sip_rtp_addr), cp.sip_rtp_port)) {}
MNCC.receive(tr_MNCC_RTP_CONNECT(cp.mncc_call_id, f_addrstr2addr(cp.sip_rtp_addr), cp.sip_rtp_port));
/* OSC -> SIP: OSC confirms call establishment to SIP side */
[] SIP.receive(tr_SIP_Response(cp.comp.sip_call_id, sip_addr_ext, sip_addr_gsm, ?,
"INVITE", 200, ?, "OK", ?)) -> value sip_resp {
if (not match(sip_resp.messageBody, pattern "*" & cp.cn_rtp_addr & "*")) {
setverdict(fail, "wrong ip addr sent in SIP SDP, not containing ", cp.cn_rtp_addr);
mtc.stop;
}
}
}
as_SIP_expect_resp(tr_SIP_Response(cp.comp.sip_call_id, sip_addr_ext, sip_addr_gsm, contact_addr := ?,
method := "INVITE", status_code := 200,
seq_nr := ?, reason := "OK",
body := pattern "*" & cp.cn_rtp_addr & "*"));
/* OSC <- SIP: SIP world acknowledges "200 OK" */
SIP.send(ts_SIP_ACK(cp.comp.sip_call_id, cp.comp.sip_url_ext, cp.comp.sip_url_gsm,
cp.comp.sip_seq_nr, omit));
@ -287,12 +298,13 @@ function f_establish_mo(inout CallPars cp) runs on ConnHdlr {
mncc.u.rtp.rtp_port := cp.cn_rtp_port;
MNCC.send(mncc);
}
/* OSC -> SIP: Send INVITE with GSM side IP/Port in SDP */
SIP.receive(tr_SIP_INVITE(?, sip_addr_gsm, sip_addr_ext, ?, ?)) -> value sip_req {
cp.comp.sip_url_gsm.params := sip_req.msgHeader.fromField.fromParams;
cp.comp.sip_call_id := sip_req.msgHeader.callId.callid;
seq_nr := sip_req.msgHeader.cSeq.seqNumber;
}
sip_req := f_SIP_expect_req(tr_SIP_INVITE(?, sip_addr_gsm, sip_addr_ext, ?, ?));
cp.comp.sip_url_gsm.params := sip_req.msgHeader.fromField.fromParams;
cp.comp.sip_call_id := sip_req.msgHeader.callId.callid;
seq_nr := sip_req.msgHeader.cSeq.seqNumber;
/* OSC <- SIP: Notify call is proceeding */
SIP.send(ts_SIP_Response(cp.comp.sip_call_id, cp.comp.sip_url_gsm, cp.comp.sip_url_ext,
"INVITE", 100, seq_nr, "Trying", sip_req.msgHeader.via));
@ -328,10 +340,11 @@ function f_release_mobile(inout CallPars cp) runs on ConnHdlr {
SIP.clear;
/* MSC -> OSC: Simulate a CC DISCONNET from the MT user */
MNCC.send(ts_MNCC_DISC_ind(cp.mncc_call_id, ts_MNCC_cause(0)));
/* OSC -> SIP: Expect BYE from OSC to SIP side */
SIP.receive(tr_SIP_BYE(cp.comp.sip_call_id, sip_addr_gsm, sip_addr_ext, ?, *)) -> value sip_req {
cp.comp.sip_url_gsm.params := sip_req.msgHeader.fromField.fromParams;
}
sip_req := f_SIP_expect_req(tr_SIP_BYE(cp.comp.sip_call_id, sip_addr_gsm, sip_addr_ext, ?, *));
cp.comp.sip_url_gsm.params := sip_req.msgHeader.fromField.fromParams;
/* OSC <- SIP: Acknowledge the BYE */
SIP.send(ts_SIP_Response(cp.comp.sip_call_id, cp.comp.sip_url_gsm, cp.comp.sip_url_ext,
"BYE", 200, sip_req.msgHeader.cSeq.seqNumber, "OK",
@ -354,8 +367,8 @@ function f_release_sip(inout CallPars cp) runs on ConnHdlr {
/* MSC -> OSC: Indicate GSM side release */
MNCC.send(ts_MNCC_REL_ind(cp.mncc_call_id, ts_MNCC_cause(0)));
/* OSC -> SIP: Confirmation to SIP side */
SIP.receive(tr_SIP_Response(cp.comp.sip_call_id, sip_addr_ext, sip_addr_gsm, *,
"BYE", 200, cp.comp.sip_seq_nr, "OK", omit));
as_SIP_expect_resp(tr_SIP_Response(cp.comp.sip_call_id, sip_addr_ext, sip_addr_gsm, *,
"BYE", 200, cp.comp.sip_seq_nr, "OK", omit));
}
/* Successful MT Call, which is subsequently released by GSM side */