pespin has submitted this change. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/37248?usp=email )
Change subject: asterisk: test Precondition extension in IMS MO call
......................................................................
asterisk: test Precondition extension in IMS MO call
Related: SYS#6969
Change-Id: I1e26f3bb9e54be5b5e15a003b2000ae3e88b9027
---
M asterisk/Asterisk_Tests.ttcn
M asterisk/IMS_ConnectionHandler.ttcn
M asterisk/expected-results.xml
M library/SIP_Templates.ttcn
4 files changed, 209 insertions(+), 10 deletions(-)
Approvals:
pespin: Looks good to me, approved
Jenkins Builder: Verified
diff --git a/asterisk/Asterisk_Tests.ttcn b/asterisk/Asterisk_Tests.ttcn
index 05b1638..981d5f1 100644
--- a/asterisk/Asterisk_Tests.ttcn
+++ b/asterisk/Asterisk_Tests.ttcn
@@ -49,7 +49,7 @@
charstring mp_ami_user := "test_user";
charstring mp_ami_secret := "1234";
charstring mp_volte_ims_outbound_registration := "volte_ims";
- /* Current default by pjproject (timeout_timer_val) to 32s, and not
changed by Asterisk */
+ /* Current default by pjproject (timeout_timer_val) is set to 32s, and
not changed by Asterisk */
integer mp_volte_ims_outbound_register_timeout := 32;
}
@@ -561,8 +561,8 @@
true, false);
}
-/* Test SIP registration of local clients */
-private function f_TC_ims_call_mo(charstring id) runs on IMS_ConnHdlr {
+/* Test IMS MO call emulating an MT which doesn't support precondition */
+private function f_TC_ims_call_mo_IMS_ConnHdlr(charstring id) runs on
IMS_ConnHdlr {
f_create_sip_expect(valueof(ts_SipUrl_from_Addr_Union(g_pars.subscr.registrar_sip_record.addr)));
if (ispresent(g_pars.subscr.cp.called)) {
f_create_sip_expect(valueof(ts_SipUrl_from_Addr_Union(g_pars.subscr.cp.called.addr)));
@@ -576,7 +576,7 @@
setverdict(pass);
as_IMS_unregister();
}
-testcase TC_ims_call_mo() runs on test_CT {
+private function f_TC_ims_call_mo(boolean use_precondition_ext) runs on
test_CT {
var SIPConnHdlrPars sip_pars;
var IMS_ConnHdlrPars ims_pars;
var SIPConnHdlr vc_conn_sip;
@@ -595,8 +595,10 @@
ts_UserInfo(ims_pars.subscr.msisdn)));
ims_pars.subscr.cp.called :=
valueof(ts_SipAddr(ts_HostPort(ims_pars.realm),
ts_UserInfo(c_ext_msisdn)));
+ ims_pars.subscr.cp.support_precondition_ext := use_precondition_ext;
+ ims_pars.subscr.cp.require_precondition_ext := use_precondition_ext;
- vc_conn_ims := f_start_handler_IMS(refers(f_TC_ims_call_mo), ims_pars);
+ vc_conn_ims :=
f_start_handler_IMS(refers(f_TC_ims_call_mo_IMS_ConnHdlr), ims_pars);
vc_conn_sip := f_start_handler(refers(f_TC_internal_call_mo), sip_pars);
COORD.receive(COORD_CMD_REGISTERED) from vc_conn_sip;
@@ -623,6 +625,12 @@
vc_conn_ims.done;
f_shutdown();
}
+testcase TC_ims_call_mo() runs on test_CT {
+ f_TC_ims_call_mo(true);
+}
+testcase TC_ims_call_mo_noprecondition() runs on test_CT {
+ f_TC_ims_call_mo(false);
+}
/* Test SIP registration of local clients */
private function f_TC_ims_call_mt(charstring id) runs on IMS_ConnHdlr {
@@ -706,6 +714,7 @@
execute( TC_ims_registration_timeout_protected_100Trying() );
execute( TC_ims_registration_timeout_protected_200OK() );
execute( TC_ims_call_mo() );
+ execute( TC_ims_call_mo_noprecondition() );
execute( TC_ims_call_mt() );
}
diff --git a/asterisk/IMS_ConnectionHandler.ttcn
b/asterisk/IMS_ConnectionHandler.ttcn
index 4f3cbb7..860b799 100644
--- a/asterisk/IMS_ConnectionHandler.ttcn
+++ b/asterisk/IMS_ConnectionHandler.ttcn
@@ -138,6 +138,8 @@
charstring local_rtp_addr,
uint16_t local_rtp_port,
+ boolean support_precondition_ext,
+ boolean require_precondition_ext,
SDP_Message peer_sdp optional,
IMS_CallParsMT mt
}
@@ -155,6 +157,8 @@
sip_body := omit,
local_rtp_addr := local_rtp_addr,
local_rtp_port := local_rtp_port,
+ support_precondition_ext := true,
+ require_precondition_ext := false,
peer_sdp := omit,
mt := t_IMS_CallParsMT
}
@@ -1104,24 +1108,106 @@
var template (value) PDU_SIP_Response tx_resp;
var Via via;
var charstring tx_sdp;
+ var boolean peer_support_precondition :=
match(g_rx_sip_req.msgHeader.supported.optionsTags,
+
superset("100rel", "precondition"));
/* Obtain params: */
f_ConnHdlr_parse_initial_SIP_INVITE(g_rx_sip_req);
via := g_rx_sip_req.msgHeader.via;
f_ims_validate_register_P_Access_Network_info(g_rx_sip_req,
exp_present := true);
+ if (g_pars.subscr.cp.require_precondition_ext and not
peer_support_precondition) {
+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
+ log2str(g_name & ": Missing
'100rel,precondition' in INVITE Supported header: ",
+
g_rx_sip_req.msgHeader.supported));
+ }
-
- /* Tx 180 Ringing */
- tx_resp := ts_SIP_Response_Ringing(g_pars.subscr.cp.sip_call_id,
+ /* Tx 100 Tyring */
+ tx_resp := ts_SIP_Response_Trying(g_pars.subscr.cp.sip_call_id,
g_pars.subscr.cp.from_addr,
g_pars.subscr.cp.to_addr,
via,
- g_pars.subscr.cp.sip_seq_nr);
+ g_pars.subscr.cp.sip_seq_nr,
+ "INVITE",
+ allow := omit,
+ server := g_pars.server_name,
+ userAgent := omit);
SIP.send(tx_resp);
- /* Tx 200 OK */
tx_sdp := f_gen_sdp();
+
+ /* Use precondition ? */
+ if (g_pars.subscr.cp.require_precondition_ext or
+ (g_pars.subscr.cp.support_precondition_ext and
peer_support_precondition)) {
+ /* Tx 183 Session Progress */
+ /* TODO: add a=curr:qos, a=des:qos and a=conf:qos
fields to SDP */
+ tx_resp :=
ts_SIP_Response_SessionProgress(g_pars.subscr.cp.sip_call_id,
+
g_pars.subscr.cp.from_addr,
+
g_pars.subscr.cp.to_addr,
+ via,
+
g_pars.subscr.cp.sip_seq_nr,
+ rseq := ts_RSeq(1),
+ body := tx_sdp);
+ SIP.send(tx_resp);
+
+ /* Rx PRACK */
+ exp_req :=
tr_SIP_PRACK(f_tr_SipUrl_opt_defport(ts_SipUrl_from_Addr_Union(g_pars.subscr.cp.called.addr)),
+ g_pars.subscr.cp.sip_call_id,
+ g_pars.subscr.cp.from_addr,
+ g_pars.subscr.cp.to_addr,
+ f_tr_Via_response(via),
+ g_pars.subscr.cp.sip_seq_nr + 1,
+ rack := tr_RAck(1,
g_pars.subscr.cp.sip_seq_nr, "INVITE"),
+ body := omit);
+ as_SIP_expect_req(exp_req);
+
+ /* Tx 200 OK (PRACK) */
+ tx_resp := ts_SIP_Response(g_pars.subscr.cp.sip_call_id,
+ g_pars.subscr.cp.from_addr,
+ g_pars.subscr.cp.to_addr,
+ "PRACK", 200,
+ g_pars.subscr.cp.sip_seq_nr,
+ "OK",
+ via,
+ body := omit);
+ SIP.send(tx_resp);
+
+ /* Rx UPDATE */
+ exp_req :=
tr_SIP_UPDATE(f_tr_SipUrl_opt_defport(ts_SipUrl_from_Addr_Union(g_pars.subscr.cp.called.addr)),
+ g_pars.subscr.cp.sip_call_id,
+ g_pars.subscr.cp.from_addr,
+ g_pars.subscr.cp.to_addr,
+ f_tr_Via_response(via),
+ g_pars.subscr.cp.sip_seq_nr + 1,
+ require :=
tr_Require(superset("precondition")),
+ body := ?);
+ as_SIP_expect_req(exp_req);
+
+ /* Tx 200 OK (UPDATE) */
+ /* TODO: add a=curr:qos, a=des:qos and a=conf:qos
fields to SDP */
+ tx_resp := ts_SIP_Response(g_pars.subscr.cp.sip_call_id,
+ g_pars.subscr.cp.from_addr,
+ g_pars.subscr.cp.to_addr,
+ "UPDATE", 200,
+ g_pars.subscr.cp.sip_seq_nr,
+ "OK",
+ via,
+ body := tx_sdp);
+ SIP.send(tx_resp);
+
+ g_pars.subscr.cp.sip_seq_nr :=
g_pars.subscr.cp.sip_seq_nr + 1;
+ }
+
+ /* Tx 180 Ringing */
+ tx_resp := ts_SIP_Response_Ringing(g_pars.subscr.cp.sip_call_id,
+ g_pars.subscr.cp.from_addr,
+ g_pars.subscr.cp.to_addr,
+ via,
+ g_pars.subscr.cp.sip_seq_nr);
+ SIP.send(tx_resp);
+
+
+ /* Tx 200 OK */
tx_resp := ts_SIP_Response(g_pars.subscr.cp.sip_call_id,
g_pars.subscr.cp.from_addr,
g_pars.subscr.cp.to_addr,
diff --git a/asterisk/expected-results.xml b/asterisk/expected-results.xml
index 6b5def5..e9d2b82 100644
--- a/asterisk/expected-results.xml
+++ b/asterisk/expected-results.xml
@@ -13,5 +13,6 @@
<testcase classname='Asterisk_Tests'
name='TC_ims_registration_timeout_protected_100Trying' time='MASKED'/>
<testcase classname='Asterisk_Tests'
name='TC_ims_registration_timeout_protected_200OK' time='MASKED'/>
<testcase classname='Asterisk_Tests' name='TC_ims_call_mo' time='MASKED'/>
+ <testcase classname='Asterisk_Tests' name='TC_ims_call_mo_noprecondition'
time='MASKED'/>
<testcase classname='Asterisk_Tests' name='TC_ims_call_mt' time='MASKED'/>
</testsuite>
diff --git a/library/SIP_Templates.ttcn b/library/SIP_Templates.ttcn
index 77d4ee0..cfe21eb 100644
--- a/library/SIP_Templates.ttcn
+++ b/library/SIP_Templates.ttcn
@@ -284,6 +284,24 @@
p_assoc_uris := p_assoc_uris
}
+// RFC 3262
+template (value) RAck ts_RAck(template (value) integer response_num,
+ template (value) integer seq_nr,
+ template (value) charstring method := "INVITE")
:= {
+ fieldName := RACK_E,
+ response_num := response_num,
+ seqNumber := seq_nr,
+ method := method
+}
+template (present) RAck tr_RAck(template (present) integer response_num := ?,
+ template (present) integer seq_nr := ?,
+ template (present) charstring method := ?) := {
+ fieldName := RACK_E,
+ response_num := response_num,
+ seqNumber := seq_nr,
+ method := method
+}
+
// [20.32]
template (value) Require ts_Require(template (value) OptionTag_List
optionsTags := {}) := {
fieldName := REQUIRE_E,
@@ -294,6 +312,16 @@
optionsTags := optionsTags
}
+// RFC 3262
+template (value) RSeq ts_RSeq(template (value) integer response_num) := {
+ fieldName := RSEQ_E,
+ response_num := response_num
+}
+template (present) RSeq tr_RSeq(template (present) integer response_num := ?)
:= {
+ fieldName := RSEQ_E,
+ response_num := response_num
+}
+
// [20.35 RFC2616 14.38]
template (value) Server ts_Server(template (value) ServerVal_List serverBody
:= {}) := {
fieldName := SERVER_E,
@@ -652,7 +680,9 @@
template (omit) Allow allow := ts_Allow(c_SIP_defaultMethods),
template (omit) Expires expires := omit,
template (omit) P_Associated_Uri p_associated_uri := omit,
+ template (omit) RAck rack := omit,
template (omit) Require require := omit,
+ template (omit) RSeq rseq := omit,
template (omit) Security_client security_client := omit,
template (omit) Security_server security_server := omit,
template (omit) Server server := omit,
@@ -677,7 +707,9 @@
expires := expires,
fromField := from_addr,
p_associated_uri := p_associated_uri,
+ rack := rack,
require := require,
+ rseq := rseq,
security_client := security_client,
security_server := security_server,
server := server,
@@ -702,6 +734,7 @@
template Authorization authorization := *,
template Expires expires := *,
template P_Associated_Uri p_associated_uri := *,
+ template RAck rack := *,
template Require require := *,
template Security_client security_client := *,
template Security_server security_server := *,
@@ -727,6 +760,7 @@
expires := expires,
fromField := from_addr,
p_associated_uri := p_associated_uri,
+ rack := rack,
require := require,
security_client := security_client,
security_server := security_server,
@@ -905,6 +939,42 @@
payload := omit
}
+template (present) PDU_SIP_Request
+tr_SIP_PRACK(template (present) SipUrl uri,
+ template CallidString call_id,
+ template From from_addr,
+ template To to_addr,
+ template Via via,
+ template integer seq_nr,
+ template RAck rack := tr_RAck(?, ?, ?),
+ template charstring body := *) := {
+ requestLine := tr_SIP_ReqLine(PRACK_E, uri),
+ msgHeader := tr_SIP_msgh_std(call_id, from_addr, to_addr, *,
+ via,
+ "PRACK", seq_nr,
+ rack := rack),
+ messageBody := body,
+ payload := omit
+}
+
+template (present) PDU_SIP_Request
+tr_SIP_UPDATE(template (present) SipUrl uri,
+ template CallidString call_id,
+ template From from_addr,
+ template To to_addr,
+ template Via via,
+ template integer seq_nr,
+ template Require require := *,
+ template charstring body) := {
+ requestLine := tr_SIP_ReqLine(UPDATE_E, uri),
+ msgHeader := tr_SIP_msgh_std(call_id, from_addr, to_addr, *,
+ via,
+ "UPDATE", seq_nr,
+ require := require),
+ messageBody := body,
+ payload := omit
+}
+
template (value) PDU_SIP_Response
ts_SIP_Response(template (value) CallidString call_id,
template (value) From from_addr,
@@ -979,6 +1049,29 @@
payload := omit
}
+/* 183 Session Progress */
+template (value) PDU_SIP_Response
+ts_SIP_Response_SessionProgress(
+ template (value) CallidString call_id,
+ template (value) From from_addr,
+ template (value) To to_addr,
+ Via via,
+ integer seq_nr,
+ charstring method := "INVITE",
+ template (omit) Require require := ts_Require({"100rel",
"precondition"}),
+ template (omit) RSeq rseq := ts_RSeq(1),
+ template (omit) charstring body := omit) := {
+ statusLine := ts_SIP_StatusLine(183, "Session Progress"),
+ msgHeader := ts_SIP_msgh_std(call_id, from_addr, to_addr, omit, method,
seq_nr,
+ via,
+ content_length := f_ContentLength(body),
+ content_type :=
f_ContentTypeOrOmit(ts_CT_SDP, body),
+ require := require,
+ rseq := rseq),
+ messageBody := body,
+ payload := omit
+}
+
/* 401 Unauthorized */
template (value) PDU_SIP_Response
ts_SIP_Response_Unauthorized(
--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I1e26f3bb9e54be5b5e15a003b2000ae3e88b9027
Gerrit-Change-Number: 37248
Gerrit-PatchSet: 6
Gerrit-Owner: pespin <[email protected]>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: pespin <[email protected]>
Gerrit-MessageType: merged
