pespin has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/27105 )
Change subject: ggsn: Test GTP-U Echo Request/Response
......................................................................
ggsn: Test GTP-U Echo Request/Response
Change-Id: Id92180be948ee3f5246c7befec666698a1b074f3
---
M ggsn_tests/GGSN_Tests.ttcn
M library/GTP_Templates.ttcn
2 files changed, 28 insertions(+), 2 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/05/27105/1
diff --git a/ggsn_tests/GGSN_Tests.ttcn b/ggsn_tests/GGSN_Tests.ttcn
index ae24eeb..5ec535c 100644
--- a/ggsn_tests/GGSN_Tests.ttcn
+++ b/ggsn_tests/GGSN_Tests.ttcn
@@ -1213,6 +1213,18 @@
T_default.stop;
}
+ testcase TC_echo_req_resp_gtpu() runs on GT_CT {
+ f_init();
+ GTPU.send(ts_GTPU_PING(g_peer_u, g_d_seq_nr));
+ T_default.start;
+ alt {
+ [] GTPU.receive(tr_GTPU_PONG(g_peer_u)) {
setverdict(pass); };
+ [] GTPU.receive { repeat; };
+ [] T_default.timeout { setverdict(fail); }
+ }
+ T_default.stop;
+ }
+
/* Test if the parser can cope with PCO that only contain either a
* single primary DNS or a secondary DNS. */
testcase TC_pdp4_act_deact_with_single_dns() runs on GT_CT {
@@ -1600,6 +1612,7 @@
execute(TC_pdp46_act_deact_apn4());
execute(TC_echo_req_resp());
+ execute(TC_echo_req_resp_gtpu());
execute(TC_pdp_act2_recovery());
execute(TC_act_deact_retrans_duplicate());
diff --git a/library/GTP_Templates.ttcn b/library/GTP_Templates.ttcn
index 8f6098a..0a9c5e9 100644
--- a/library/GTP_Templates.ttcn
+++ b/library/GTP_Templates.ttcn
@@ -1121,7 +1121,7 @@
}
/* generalized GTP-U send template */
- template PDU_GTPU ts_GTP1U_PDU(OCT1 msg_type, template (omit) uint16_t
seq, OCT4 teid, GTPU_IEs ies) := {
+ template (value) PDU_GTPU ts_GTP1U_PDU(OCT1 msg_type, template (omit)
uint16_t seq, OCT4 teid, GTPU_IEs ies) := {
/* N-PDU Number flag (PN): the GTP-U header contains a
meaningful N-PDU Number field if the PN
* flag is set to 1. */
pn_bit := '0'B, /* we assume the encoder overwrites this if an
optional part is given */
@@ -1153,8 +1153,9 @@
}
- /* template matching reception of GTP-U echo-request */
+ /* template matching reception of GTP-U echo-request/response */
template Gtp1uUnitdata tr_GTPU_PING(template GtpPeer peer) :=
tr_GTPU_MsgType(peer, echoRequest, '00000000'O);
+ template Gtp1uUnitdata tr_GTPU_PONG(template GtpPeer peer) :=
tr_GTPU_MsgType(peer, echoResponse, '00000000'O);
/* template matching reception of GTP-U GPDU */
template GTPU_IEs t_GPDU(template octetstring data) := {
@@ -1167,6 +1168,18 @@
gtpu := tr_GTP1U_PDU('FF'O, teid, t_GPDU(data))
}
+ template GTPU_IEs ts_UEchoReqPDU := {
+ echoRequest_IEs := {
+ private_extension_gtpu := omit
+ }
+ }
+
+ /* master template for sending a GTP-C echo request */
+ template (value) Gtp1uUnitdata ts_GTPU_PING(GtpPeer peer, uint16_t seq)
:= {
+ peer := peer,
+ gtpu := ts_GTP1U_PDU(echoRequest, seq, '00000000'O,
valueof(ts_UEchoReqPDU))
+ }
+
template GTPU_IEs ts_UEchoRespPDU(OCT1 restart_counter) := {
echoResponse_IEs := {
recovery_gtpu := {
--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Id92180be948ee3f5246c7befec666698a1b074f3
Gerrit-Change-Number: 27105
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <[email protected]>
Gerrit-MessageType: newchange
