diff options
| author | Pau Espin Pedrol <pespin@sysmocom.de> | 2022-02-09 16:37:47 +0100 |
|---|---|---|
| committer | Pau Espin Pedrol <pespin@sysmocom.de> | 2022-02-11 13:10:20 +0100 |
| commit | 480e67f00daf3e3a95ef15a352158caedb7092f9 (patch) | |
| tree | 2a058c61a06e37db51b73696c5271d514d2df443 | |
| parent | 134aea932d58ee5b23899f62b7a224997c91db9e (diff) | |
ggsn: Test GTP-U Echo Request/Response
Change-Id: Id92180be948ee3f5246c7befec666698a1b074f3
| -rw-r--r-- | ggsn_tests/GGSN_Tests.ttcn | 13 | ||||
| -rw-r--r-- | library/GTP_Templates.ttcn | 17 |
2 files changed, 28 insertions, 2 deletions
diff --git a/ggsn_tests/GGSN_Tests.ttcn b/ggsn_tests/GGSN_Tests.ttcn index ae24eeba..5ec535c9 100644 --- a/ggsn_tests/GGSN_Tests.ttcn +++ b/ggsn_tests/GGSN_Tests.ttcn @@ -1213,6 +1213,18 @@ module GGSN_Tests { 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 @@ module GGSN_Tests { 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 8f6098ac..0a9c5e9c 100644 --- a/library/GTP_Templates.ttcn +++ b/library/GTP_Templates.ttcn @@ -1121,7 +1121,7 @@ module GTP_Templates { } /* 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 @@ module GTP_Templates { } - /* 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 @@ module GTP_Templates { 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 := { |