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[AMF] Buffix for NON-initial NAS message (#1106) 

Confirmation for non-cleartext IE should only be applied
to the initial NAS message. Registration requests and Service requests
with UplinkNASTransport do not have to.
This commit is contained in:
Sukchan Lee 2021-05-19 13:27:31 +09:00
parent 873cf398c7
commit 3d11b87127
6 changed files with 304 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/amf/context.h
View File

@ -222,9 +222,6 @@ struct amf_ue_s {
uint8_t message_type; /* Type of last specific NAS message received */
int access_type; /* 3GPP or Non-3GPP */
/* InitialUEMessage or UplinkNASTrasnport */
NGAP_ProcedureCode_t ngapProcedureCode;
struct {
ED3(uint8_t tsc:1;,
uint8_t ksi:3;,

10
src/amf/gmm-handler.c
View File

@ -32,7 +32,7 @@ static int gmm_handle_nas_message_container(amf_ue_t *amf_ue,
ogs_nas_message_container_t *nas_message_container);
int gmm_handle_registration_request(amf_ue_t *amf_ue,
ogs_nas_security_header_type_t h,
ogs_nas_security_header_type_t h, NGAP_ProcedureCode_t ngap_code,
ogs_nas_5gs_registration_request_t *registration_request)
{
int served_tai_index = 0;
@ -106,7 +106,8 @@ int gmm_handle_registration_request(amf_ue_t *amf_ue,
OGS_NAS_5GS_REGISTRATION_REQUEST_EPS_NAS_MESSAGE_CONTAINER_PRESENT| \
OGS_NAS_5GS_REGISTRATION_REQUEST_NAS_MESSAGE_CONTAINER_PRESENT)
if (registration_request->presencemask &
if (ngap_code == NGAP_ProcedureCode_id_InitialUEMessage &&
registration_request->presencemask &
~OGS_REGISTRATION_CLEARTEXT_PRESENT) {
ogs_error("Non cleartext IEs is included [0x%llx]",
(long long)registration_request->presencemask);
@ -417,7 +418,7 @@ int gmm_handle_registration_update(amf_ue_t *amf_ue,
}
int gmm_handle_service_request(amf_ue_t *amf_ue,
ogs_nas_security_header_type_t h,
ogs_nas_security_header_type_t h, NGAP_ProcedureCode_t ngap_code,
ogs_nas_5gs_service_request_t *service_request)
{
int served_tai_index = 0;
@ -450,7 +451,8 @@ int gmm_handle_service_request(amf_ue_t *amf_ue,
#define OGS_SERVICE_CLEARTEXT_PRESENT \
(OGS_NAS_5GS_SERVICE_REQUEST_NAS_MESSAGE_CONTAINER_PRESENT)
if (service_request->presencemask & ~OGS_SERVICE_CLEARTEXT_PRESENT) {
if (ngap_code == NGAP_ProcedureCode_id_InitialUEMessage &&
service_request->presencemask & ~OGS_SERVICE_CLEARTEXT_PRESENT) {
ogs_error("Non cleartext IEs is included [0x%llx]",
(long long)service_request->presencemask);
ogs_assert(OGS_OK ==

4
src/amf/gmm-handler.h
View File

@ -27,13 +27,13 @@ extern "C" {
#endif
int gmm_handle_registration_request(amf_ue_t *amf_ue,
ogs_nas_security_header_type_t h,
ogs_nas_security_header_type_t h, NGAP_ProcedureCode_t ngap_code,
ogs_nas_5gs_registration_request_t *registration_request);
int gmm_handle_registration_update(amf_ue_t *amf_ue,
ogs_nas_5gs_registration_request_t *registration_request);
int gmm_handle_service_request(amf_ue_t *amf_ue,
ogs_nas_security_header_type_t h,
ogs_nas_security_header_type_t h, NGAP_ProcedureCode_t ngap_code,
ogs_nas_5gs_service_request_t *service_request);
int gmm_handle_service_update(amf_ue_t *amf_ue,
ogs_nas_5gs_service_request_t *service_request);

25
src/amf/gmm-sm.c
View File

@ -122,7 +122,6 @@ static void common_register_state(ogs_fsm_t *s, amf_event_t *e)
ogs_assert(ran_ue);
h.type = e->nas.type;
amf_ue->nas.ngapProcedureCode = e->ngap.code;
xact_count = amf_sess_xact_count(amf_ue);
@ -130,7 +129,8 @@ static void common_register_state(ogs_fsm_t *s, amf_event_t *e)
case OGS_NAS_5GS_REGISTRATION_REQUEST:
ogs_info("Registration request");
rv = gmm_handle_registration_request(
amf_ue, h, &nas_message->gmm.registration_request);
amf_ue, h, e->ngap.code,
&nas_message->gmm.registration_request);
if (rv != OGS_OK) {
ogs_error("gmm_handle_registration_request() failed");
OGS_FSM_TRAN(s, gmm_state_exception);
@ -220,7 +220,7 @@ static void common_register_state(ogs_fsm_t *s, amf_event_t *e)
ogs_info("Service request");
rv = gmm_handle_service_request(
amf_ue, h, &nas_message->gmm.service_request);
amf_ue, h, e->ngap.code, &nas_message->gmm.service_request);
if (rv != OGS_OK) {
ogs_error("gmm_handle_service_request() failed");
OGS_FSM_TRAN(s, gmm_state_exception);
@ -451,7 +451,6 @@ void gmm_state_authentication(ogs_fsm_t *s, amf_event_t *e)
ogs_assert(nas_message);
h.type = e->nas.type;
amf_ue->nas.ngapProcedureCode = e->ngap.code;
switch (nas_message->gmm.h.message_type) {
case OGS_NAS_5GS_AUTHENTICATION_RESPONSE:
@ -520,9 +519,11 @@ void gmm_state_authentication(ogs_fsm_t *s, amf_event_t *e)
case OGS_NAS_5GS_REGISTRATION_REQUEST:
ogs_warn("Registration request");
rv = gmm_handle_registration_request(
amf_ue, h, &nas_message->gmm.registration_request);
amf_ue, h, e->ngap.code,
&nas_message->gmm.registration_request);
if (rv != OGS_OK) {
ogs_error("[%s] Cannot handle NAS message", amf_ue->suci);
ogs_error("[%s] gmm_handle_registration_request() failed",
amf_ue->suci);
OGS_FSM_TRAN(s, gmm_state_exception);
break;
}
@ -679,7 +680,6 @@ void gmm_state_security_mode(ogs_fsm_t *s, amf_event_t *e)
ogs_assert(nas_message);
h.type = e->nas.type;
amf_ue->nas.ngapProcedureCode = e->ngap.code;
switch (nas_message->gmm.h.message_type) {
case OGS_NAS_5GS_SECURITY_MODE_COMPLETE:
@ -748,7 +748,8 @@ void gmm_state_security_mode(ogs_fsm_t *s, amf_event_t *e)
case OGS_NAS_5GS_REGISTRATION_REQUEST:
ogs_warn("Registration request");
rv = gmm_handle_registration_request(
amf_ue, h, &nas_message->gmm.registration_request);
amf_ue, h, e->ngap.code,
&nas_message->gmm.registration_request);
if (rv != OGS_OK) {
ogs_error("[%s] Cannot handle NAS message", amf_ue->suci);
OGS_FSM_TRAN(s, gmm_state_exception);
@ -968,7 +969,6 @@ void gmm_state_initial_context_setup(ogs_fsm_t *s, amf_event_t *e)
ogs_assert(nas_message);
h.type = e->nas.type;
amf_ue->nas.ngapProcedureCode = e->ngap.code;
switch (nas_message->gmm.h.message_type) {
case OGS_NAS_5GS_REGISTRATION_COMPLETE:
@ -1018,7 +1018,8 @@ void gmm_state_initial_context_setup(ogs_fsm_t *s, amf_event_t *e)
case OGS_NAS_5GS_REGISTRATION_REQUEST:
ogs_warn("Registration request");
rv = gmm_handle_registration_request(
amf_ue, h, &nas_message->gmm.registration_request);
amf_ue, h, e->ngap.code,
&nas_message->gmm.registration_request);
if (rv != OGS_OK) {
ogs_error("[%s] Cannot handle NAS message", amf_ue->suci);
OGS_FSM_TRAN(s, gmm_state_exception);
@ -1136,7 +1137,6 @@ void gmm_state_exception(ogs_fsm_t *s, amf_event_t *e)
ogs_assert(ran_ue);
h.type = e->nas.type;
amf_ue->nas.ngapProcedureCode = e->ngap.code;
xact_count = amf_sess_xact_count(amf_ue);
@ -1144,7 +1144,8 @@ void gmm_state_exception(ogs_fsm_t *s, amf_event_t *e)
case OGS_NAS_5GS_REGISTRATION_REQUEST:
ogs_info("Registration request");
rv = gmm_handle_registration_request(
amf_ue, h, &nas_message->gmm.registration_request);
amf_ue, h, e->ngap.code,
&nas_message->gmm.registration_request);
if (rv != OGS_OK) {
ogs_error("gmm_handle_registration_request() failed");
OGS_FSM_TRAN(s, gmm_state_exception);

275
tests/registration/guti-test.c
View File

@ -960,12 +960,287 @@ static void test2_func(abts_case *tc, void *data)
test_ue_remove(test_ue);
}
static void test3_func(abts_case *tc, void *data)
{
int rv;
ogs_socknode_t *ngap;
ogs_socknode_t *gtpu;
ogs_pkbuf_t *gmmbuf;
ogs_pkbuf_t *gsmbuf;
ogs_pkbuf_t *nasbuf;
ogs_pkbuf_t *sendbuf;
ogs_pkbuf_t *recvbuf;
ogs_ngap_message_t message;
int i;
ogs_nas_5gs_mobile_identity_suci_t mobile_identity_suci;
test_ue_t *test_ue = NULL;
test_sess_t *sess = NULL;
test_bearer_t *qos_flow = NULL;
bson_t *doc = NULL;
/* Setup Test UE & Session Context */
memset(&mobile_identity_suci, 0, sizeof(mobile_identity_suci));
mobile_identity_suci.h.supi_format = OGS_NAS_5GS_SUPI_FORMAT_IMSI;
mobile_identity_suci.h.type = OGS_NAS_5GS_MOBILE_IDENTITY_SUCI;
mobile_identity_suci.routing_indicator1 = 0;
mobile_identity_suci.routing_indicator2 = 0xf;
mobile_identity_suci.routing_indicator3 = 0xf;
mobile_identity_suci.routing_indicator4 = 0xf;
mobile_identity_suci.protection_scheme_id = OGS_NAS_5GS_NULL_SCHEME;
mobile_identity_suci.home_network_pki_value = 0;
mobile_identity_suci.scheme_output[0] = 0;
mobile_identity_suci.scheme_output[1] = 0;
mobile_identity_suci.scheme_output[2] = 0x20;
mobile_identity_suci.scheme_output[3] = 0x31;
mobile_identity_suci.scheme_output[4] = 0x90;
test_ue = test_ue_add_by_suci(&mobile_identity_suci, 13);
ogs_assert(test_ue);
test_ue->nr_cgi.cell_id = 0x40001;
test_ue->nas.registration.tsc = 0;
test_ue->nas.registration.ksi = OGS_NAS_KSI_NO_KEY_IS_AVAILABLE;
test_ue->nas.registration.follow_on_request = 1;
test_ue->nas.registration.value = OGS_NAS_5GS_REGISTRATION_TYPE_INITIAL;
test_ue->k_string = "465b5ce8b199b49faa5f0a2ee238a6bc";
test_ue->opc_string = "e8ed289deba952e4283b54e88e6183ca";
/* gNB connects to AMF */
ngap = testngap_client(AF_INET);
ABTS_PTR_NOTNULL(tc, ngap);
/* gNB connects to UPF */
gtpu = test_gtpu_server(1, AF_INET);
ABTS_PTR_NOTNULL(tc, gtpu);
/* Send NG-Setup Reqeust */
sendbuf = testngap_build_ng_setup_request(0x4000, 22);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive NG-Setup Response */
recvbuf = testgnb_ngap_read(ngap);
ABTS_PTR_NOTNULL(tc, recvbuf);
testngap_recv(test_ue, recvbuf);
/********** Insert Subscriber in Database */
doc = test_db_new_simple(test_ue);
ABTS_PTR_NOTNULL(tc, doc);
ABTS_INT_EQUAL(tc, OGS_OK, test_db_insert_ue(test_ue, doc));
/* Send Registration request */
test_ue->registration_request_param.guti = 1;
gmmbuf = testgmm_build_registration_request(test_ue, NULL);
ABTS_PTR_NOTNULL(tc, gmmbuf);
test_ue->registration_request_param.gmm_capability = 1;
test_ue->registration_request_param.s1_ue_network_capability = 1;
test_ue->registration_request_param.requested_nssai = 1;
test_ue->registration_request_param.last_visited_registered_tai = 1;
test_ue->registration_request_param.ue_usage_setting = 1;
nasbuf = testgmm_build_registration_request(test_ue, NULL);
ABTS_PTR_NOTNULL(tc, nasbuf);
sendbuf = testngap_build_initial_ue_message(test_ue, gmmbuf, false, true);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive Identity request */
recvbuf = testgnb_ngap_read(ngap);
ABTS_PTR_NOTNULL(tc, recvbuf);
testngap_recv(test_ue, recvbuf);
/* Send Identity response */
gmmbuf = testgmm_build_identity_response(test_ue);
ABTS_PTR_NOTNULL(tc, gmmbuf);
sendbuf = testngap_build_uplink_nas_transport(test_ue, gmmbuf);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive Authentication request */
recvbuf = testgnb_ngap_read(ngap);
ABTS_PTR_NOTNULL(tc, recvbuf);
testngap_recv(test_ue, recvbuf);
/* Send Authentication response */
gmmbuf = testgmm_build_authentication_response(test_ue);
ABTS_PTR_NOTNULL(tc, gmmbuf);
sendbuf = testngap_build_uplink_nas_transport(test_ue, gmmbuf);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive Security mode command */
recvbuf = testgnb_ngap_read(ngap);
ABTS_PTR_NOTNULL(tc, recvbuf);
testngap_recv(test_ue, recvbuf);
/* Send Security mode complete */
gmmbuf = testgmm_build_security_mode_complete(test_ue, nasbuf);
ABTS_PTR_NOTNULL(tc, gmmbuf);
sendbuf = testngap_build_uplink_nas_transport(test_ue, gmmbuf);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive InitialContextSetupRequest +
* Registration accept */
recvbuf = testgnb_ngap_read(ngap);
ABTS_PTR_NOTNULL(tc, recvbuf);
testngap_recv(test_ue, recvbuf);
ABTS_INT_EQUAL(tc,
NGAP_ProcedureCode_id_InitialContextSetup,
test_ue->ngap_procedure_code);
/* Send UERadioCapabilityInfoIndication */
sendbuf = testngap_build_ue_radio_capability_info_indication(test_ue);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Send InitialContextSetupResponse */
sendbuf = testngap_build_initial_context_setup_response(test_ue, false);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Send Registration complete */
gmmbuf = testgmm_build_registration_complete(test_ue);
ABTS_PTR_NOTNULL(tc, gmmbuf);
sendbuf = testngap_build_uplink_nas_transport(test_ue, gmmbuf);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive Configuration update command */
recvbuf = testgnb_ngap_read(ngap);
ABTS_PTR_NOTNULL(tc, recvbuf);
testngap_recv(test_ue, recvbuf);
/* Send PDU session establishment request */
sess = test_sess_add_by_dnn_and_psi(test_ue, "internet", 5);
ogs_assert(sess);
sess->ul_nas_transport_param.request_type =
OGS_NAS_5GS_REQUEST_TYPE_INITIAL;
sess->ul_nas_transport_param.dnn = 1;
sess->ul_nas_transport_param.s_nssai = 1;
sess->pdu_session_establishment_param.ssc_mode = 1;
sess->pdu_session_establishment_param.epco = 1;
gsmbuf = testgsm_build_pdu_session_establishment_request(sess);
ABTS_PTR_NOTNULL(tc, gsmbuf);
gmmbuf = testgmm_build_ul_nas_transport(sess,
OGS_NAS_PAYLOAD_CONTAINER_N1_SM_INFORMATION, gsmbuf);
ABTS_PTR_NOTNULL(tc, gmmbuf);
sendbuf = testngap_build_uplink_nas_transport(test_ue, gmmbuf);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive PDUSessionResourceSetupRequest +
* DL NAS transport +
* PDU session establishment accept */
recvbuf = testgnb_ngap_read(ngap);
ABTS_PTR_NOTNULL(tc, recvbuf);
testngap_recv(test_ue, recvbuf);
ABTS_INT_EQUAL(tc,
NGAP_ProcedureCode_id_PDUSessionResourceSetup,
test_ue->ngap_procedure_code);
/* Send PDUSessionResourceSetupResponse */
sendbuf = testngap_sess_build_pdu_session_resource_setup_response(sess);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Send Registration request
* - Update Registration request type
* - Uplink Data Status */
test_ue->nas.registration.value =
OGS_NAS_5GS_REGISTRATION_TYPE_MOBILITY_UPDATING;
test_ue->registration_request_param.integrity_protected = 1;
test_ue->registration_request_param.uplink_data_status = 1;
test_ue->registration_request_param.psimask.uplink_data_status =
1 << sess->psi;
gmmbuf = testgmm_build_registration_request(test_ue, NULL);
ABTS_PTR_NOTNULL(tc, gmmbuf);
sendbuf = testngap_build_uplink_nas_transport(test_ue, gmmbuf);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive PDUSessionResourceSetupRequest +
* Registration accept */
recvbuf = testgnb_ngap_read(ngap);
ABTS_PTR_NOTNULL(tc, recvbuf);
testngap_recv(test_ue, recvbuf);
ABTS_INT_EQUAL(tc,
NGAP_ProcedureCode_id_PDUSessionResourceSetup,
test_ue->ngap_procedure_code);
ABTS_INT_EQUAL(tc, 0x0000, test_ue->pdu_session_reactivation_result);
/* Send PDUSessionResourceSetupResponse */
sendbuf = testngap_ue_build_pdu_session_resource_setup_response(test_ue);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Send UEContextReleaseRequest */
sendbuf = testngap_build_ue_context_release_request(test_ue,
NGAP_Cause_PR_radioNetwork, NGAP_CauseRadioNetwork_user_inactivity,
true);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive UEContextReleaseCommand */
recvbuf = testgnb_ngap_read(ngap);
ABTS_PTR_NOTNULL(tc, recvbuf);
testngap_recv(test_ue, recvbuf);
ABTS_INT_EQUAL(tc,
NGAP_ProcedureCode_id_UEContextRelease,
test_ue->ngap_procedure_code);
/* Send UEContextReleaseComplete */
sendbuf = testngap_build_ue_context_release_complete(test_ue);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
ogs_msleep(300);
/********** Remove Subscriber in Database */
ABTS_INT_EQUAL(tc, OGS_OK, test_db_remove_ue(test_ue));
/* gNB disonncect from UPF */
testgnb_gtpu_close(gtpu);
/* gNB disonncect from AMF */
testgnb_ngap_close(ngap);
/* Clear Test UE Context */
test_ue_remove(test_ue);
}
abts_suite *test_guti(abts_suite *suite)
{
suite = ADD_SUITE(suite)
abts_run_test(suite, test1_func, NULL);
abts_run_test(suite, test2_func, NULL);
abts_run_test(suite, test3_func, NULL);
return suite;
}

30
tests/registration/idle-test.c
View File

@ -945,20 +945,13 @@ static void test3_func(abts_case *tc, void *data)
* Service request
* - Uplink Data Status
*/
test_ue->service_request_param.integrity_protected = 0;
test_ue->service_request_param.ciphered = 0;
test_ue->service_request_param.uplink_data_status = 1;
test_ue->service_request_param.psimask.uplink_data_status = 1 << sess->psi;
nasbuf = testgmm_build_service_request(
test_ue, OGS_NAS_SERVICE_TYPE_DATA, NULL);
ABTS_PTR_NOTNULL(tc, nasbuf);
memset(&test_ue->service_request_param, 0,
sizeof(test_ue->service_request_param));
test_ue->service_request_param.integrity_protected = 1;
test_ue->service_request_param.ciphered = 1;
test_ue->service_request_param.uplink_data_status = 1;
test_ue->service_request_param.psimask.uplink_data_status = 1 << sess->psi;
gmmbuf = testgmm_build_service_request(
test_ue, OGS_NAS_SERVICE_TYPE_DATA, nasbuf);
test_ue, OGS_NAS_SERVICE_TYPE_DATA, NULL);
ABTS_PTR_NOTNULL(tc, gmmbuf);
sendbuf = testngap_build_uplink_nas_transport(test_ue, gmmbuf);
ABTS_PTR_NOTNULL(tc, sendbuf);
@ -1372,22 +1365,15 @@ static void test4_func(abts_case *tc, void *data)
* Service request
* - Uplink Data Status
*/
test_ue->service_request_param.integrity_protected = 0;
test_ue->service_request_param.ciphered = 0;
test_ue->service_request_param.integrity_protected = 1;
test_ue->service_request_param.ciphered = 1;
test_ue->service_request_param.pdu_session_status = 1;
test_ue->service_request_param.psimask.pdu_session_status =
1 << sess->psi;
nasbuf = testgmm_build_service_request(
test_ue, OGS_NAS_SERVICE_TYPE_SIGNALLING, NULL);
ABTS_PTR_NOTNULL(tc, nasbuf);
memset(&test_ue->service_request_param, 0,
sizeof(test_ue->service_request_param));
test_ue->service_request_param.integrity_protected = 1;
test_ue->service_request_param.ciphered = 1;
gmmbuf = testgmm_build_service_request(
test_ue, OGS_NAS_SERVICE_TYPE_SIGNALLING, nasbuf);
test_ue, OGS_NAS_SERVICE_TYPE_SIGNALLING, NULL);
ABTS_PTR_NOTNULL(tc, nasbuf);
sendbuf = testngap_build_uplink_nas_transport(test_ue, gmmbuf);
ABTS_PTR_NOTNULL(tc, sendbuf);
rv = testgnb_ngap_send(ngap, sendbuf);