upf/sgwu: fix the PDR creation bug (#860)

When PDR is created without deleting session, there is a bug to create new PDR.
2025-11-02 13:03:31 +00:00 · 2021-03-19 10:08:37 +09:00
parent dc474329e2
commit d0eec31f5c
18 changed files with 309 additions and 22 deletions
--- a/tests/common/context.h
+++ b/tests/common/context.h
@@ -246,6 +246,17 @@ typedef struct test_ul_nas_transport_param_s {
    };
 } __attribute__ ((packed)) test_ul_nas_transport_param_t;

+typedef struct test_pdu_session_establishment_param_s {
+    union {
+        struct {
+        ED3(uint8_t ssc_mode:1;,
+            uint8_t epco:1;,
+            uint8_t reserved:6;)
+        };
+        uint8_t value;
+    };
+} __attribute__ ((packed)) test_pdu_session_establishment_param_t;
+
 typedef struct test_pdn_connectivity_param_s {
    union {
        struct {
@@ -427,6 +438,7 @@ typedef struct test_sess_s {
    ogs_sockaddr_t *gnb_n3_addr6;   /* gNB-N3 IPv6 */

    test_ul_nas_transport_param_t ul_nas_transport_param;
+    test_pdu_session_establishment_param_t pdu_session_establishment_param;
    test_pdn_connectivity_param_t pdn_connectivity_param;
    test_esm_information_param_t esm_information_param;

--- a/tests/common/gsm-build.c
+++ b/tests/common/gsm-build.c
@@ -29,10 +29,7 @@ ogs_pkbuf_t *testgsm_build_pdu_session_establishment_request(
    ogs_nas_integrity_protection_maximum_data_rate_t
        *integrity_protection_maximum_data_rate = NULL;
    ogs_nas_pdu_session_type_t *pdu_session_type = NULL;
-#define ADD_SSC_MODE 1
-#if ADD_SSC_MODE
    ogs_nas_ssc_mode_t *ssc_mode = NULL;
-#endif
    ogs_nas_extended_protocol_configuration_options_t
        *extended_protocol_configuration_options = NULL;
    uint8_t ue_pco[35] =
@@ -51,9 +48,7 @@ ogs_pkbuf_t *testgsm_build_pdu_session_establishment_request(
        &pdu_session_establishment_request->
            integrity_protection_maximum_data_rate;
    pdu_session_type = &pdu_session_establishment_request->pdu_session_type;
-#if ADD_SSC_MODE
    ssc_mode = &pdu_session_establishment_request->ssc_mode;
-#endif
    extended_protocol_configuration_options =
        &pdu_session_establishment_request->
            extended_protocol_configuration_options;
@@ -73,16 +68,18 @@ ogs_pkbuf_t *testgsm_build_pdu_session_establishment_request(
        OGS_NAS_5GS_PDU_SESSION_ESTABLISHMENT_REQUEST_PDU_SESSION_TYPE_PRESENT;
    pdu_session_type->value = test_sess->pdu_session_type;

-#if ADD_SSC_MODE
-    pdu_session_establishment_request->presencemask |=
-        OGS_NAS_5GS_PDU_SESSION_ESTABLISHMENT_REQUEST_SSC_MODE_PRESENT;
-    ssc_mode->value = OGS_NAS_SSC_MODE_1;
-#endif
+    if (test_sess->pdu_session_establishment_param.ssc_mode) {
+        pdu_session_establishment_request->presencemask |=
+            OGS_NAS_5GS_PDU_SESSION_ESTABLISHMENT_REQUEST_SSC_MODE_PRESENT;
+        ssc_mode->value = OGS_NAS_SSC_MODE_1;
+    }

-    pdu_session_establishment_request->presencemask |=
-        OGS_NAS_5GS_PDU_SESSION_ESTABLISHMENT_REQUEST_EXTENDED_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT;
-    extended_protocol_configuration_options->length = sizeof(ue_pco);
-    extended_protocol_configuration_options->buffer = ue_pco;
+    if (test_sess->pdu_session_establishment_param.epco) {
+        pdu_session_establishment_request->presencemask |=
+            OGS_NAS_5GS_PDU_SESSION_ESTABLISHMENT_REQUEST_EXTENDED_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT;
+        extended_protocol_configuration_options->length = sizeof(ue_pco);
+        extended_protocol_configuration_options->buffer = ue_pco;
+    }

    return ogs_nas_5gs_plain_encode(&message);
 }
--- a/tests/handover/5gc-n2-test.c
+++ b/tests/handover/5gc-n2-test.c
@@ -211,6 +211,9 @@ static void failure_func(abts_case *tc, void *data)
    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,
@@ -266,6 +269,9 @@ static void failure_func(abts_case *tc, void *data)
    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,
@@ -307,6 +313,9 @@ static void failure_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -602,6 +611,9 @@ static void direct_complete_func(abts_case *tc, void *data)
    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,
@@ -657,6 +669,9 @@ static void direct_complete_func(abts_case *tc, void *data)
    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,
@@ -698,6 +713,9 @@ static void direct_complete_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -1209,6 +1227,9 @@ static void direct_cancel_func(abts_case *tc, void *data)
    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,
@@ -1264,6 +1285,9 @@ static void direct_cancel_func(abts_case *tc, void *data)
    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,
@@ -1305,6 +1329,9 @@ static void direct_cancel_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -1616,6 +1643,9 @@ static void indirect_complete_func(abts_case *tc, void *data)
    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,
@@ -1671,6 +1701,9 @@ static void indirect_complete_func(abts_case *tc, void *data)
    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,
@@ -1712,6 +1745,9 @@ static void indirect_complete_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -2259,6 +2295,9 @@ static void indirect_cancel_func(abts_case *tc, void *data)
    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,
@@ -2314,6 +2353,9 @@ static void indirect_cancel_func(abts_case *tc, void *data)
    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,
@@ -2355,6 +2397,9 @@ static void indirect_cancel_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
--- a/tests/handover/5gc-xn-test.c
+++ b/tests/handover/5gc-xn-test.c
@@ -211,6 +211,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
@@ -277,6 +280,9 @@ static void test1_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
--- a/tests/registration/dereg-test.c
+++ b/tests/registration/dereg-test.c
@@ -187,6 +187,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
@@ -614,6 +617,9 @@ static void test3_func(abts_case *tc, void *data)
    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,
@@ -665,6 +671,9 @@ static void test3_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_release_request(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -695,6 +704,9 @@ static void test3_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_release_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -775,6 +787,9 @@ static void test3_func(abts_case *tc, void *data)
    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,
@@ -1019,6 +1034,9 @@ static void test4_func(abts_case *tc, void *data)
        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,
@@ -1061,6 +1079,9 @@ static void test4_func(abts_case *tc, void *data)
        sess->ul_nas_transport_param.dnn = 0;
        sess->ul_nas_transport_param.s_nssai = 0;

+        sess->pdu_session_establishment_param.ssc_mode = 0;
+        sess->pdu_session_establishment_param.epco = 0;
+
        gsmbuf = testgsm_build_pdu_session_release_request(sess);
        ABTS_PTR_NOTNULL(tc, gsmbuf);
        gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -1091,6 +1112,9 @@ static void test4_func(abts_case *tc, void *data)
        sess->ul_nas_transport_param.dnn = 0;
        sess->ul_nas_transport_param.s_nssai = 0;

+        sess->pdu_session_establishment_param.ssc_mode = 0;
+        sess->pdu_session_establishment_param.epco = 0;
+
        gsmbuf = testgsm_build_pdu_session_release_complete(sess);
        ABTS_PTR_NOTNULL(tc, gsmbuf);
        gmmbuf = testgmm_build_ul_nas_transport(sess,
--- a/tests/registration/gmm-status-test.c
+++ b/tests/registration/gmm-status-test.c
@@ -171,6 +171,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
--- a/tests/registration/guti-test.c
+++ b/tests/registration/guti-test.c
@@ -191,6 +191,9 @@ static void test1_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 1;
    sess->ul_nas_transport_param.s_nssai = 0;

+    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,
@@ -416,6 +419,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
@@ -662,6 +668,9 @@ static void test2_func(abts_case *tc, void *data)
    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,
@@ -841,6 +850,9 @@ static void test2_func(abts_case *tc, void *data)
    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,
--- a/tests/registration/identity-test.c
+++ b/tests/registration/identity-test.c
@@ -177,6 +177,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
--- a/tests/registration/idle-test.c
+++ b/tests/registration/idle-test.c
@@ -177,6 +177,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
@@ -815,6 +818,9 @@ static void test3_func(abts_case *tc, void *data)
    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,
@@ -1238,6 +1244,9 @@ static void test4_func(abts_case *tc, void *data)
    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,
@@ -1618,6 +1627,9 @@ static void test5_func(abts_case *tc, void *data)
    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,
@@ -1730,6 +1742,9 @@ static void test5_func(abts_case *tc, void *data)
        OGS_NAS_5GS_REQUEST_TYPE_INITIAL;
    sess->ul_nas_transport_param.dnn = 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,
@@ -2001,6 +2016,9 @@ static void test6_func(abts_case *tc, void *data)
    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,
--- a/tests/registration/paging-test.c
+++ b/tests/registration/paging-test.c
@@ -177,6 +177,9 @@ static void cm_idle_paging_func(abts_case *tc, void *data)
    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,
@@ -712,6 +715,9 @@ static void cm_idle_error_indication_func(abts_case *tc, void *data)
    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,
@@ -1039,6 +1045,9 @@ static void cm_connected_error_indication_func(abts_case *tc, void *data)
    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,
@@ -1330,6 +1339,9 @@ static void vonr_qos_flow_test1_func(abts_case *tc, void *data)
    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,
@@ -1396,6 +1408,9 @@ static void vonr_qos_flow_test1_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -1722,6 +1737,9 @@ static void vonr_session_test2_func(abts_case *tc, void *data)
    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,
@@ -1777,6 +1795,9 @@ static void vonr_session_test2_func(abts_case *tc, void *data)
    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,
@@ -1818,6 +1839,9 @@ static void vonr_session_test2_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -1941,6 +1965,9 @@ static void vonr_session_test2_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_release_request(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -1971,6 +1998,9 @@ static void vonr_session_test2_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_release_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -2187,6 +2217,9 @@ static void registration_ue_context_test4_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    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,
@@ -2569,6 +2602,9 @@ static void registration_idle_test1_func(abts_case *tc, void *data)
    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,
--- a/tests/registration/reset-test.c
+++ b/tests/registration/reset-test.c
@@ -223,6 +223,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
@@ -473,6 +476,9 @@ static void test2_func(abts_case *tc, void *data)
    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,
--- a/tests/registration/ue-context-test.c
+++ b/tests/registration/ue-context-test.c
@@ -395,6 +395,9 @@ static void test2_func(abts_case *tc, void *data)
    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,
@@ -634,6 +637,9 @@ static void test3_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    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,
@@ -740,6 +746,9 @@ static void test3_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_release_request(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -770,6 +779,9 @@ static void test3_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_release_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -1052,6 +1064,9 @@ static void test4_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    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,
--- a/tests/slice/nssai-test.c
+++ b/tests/slice/nssai-test.c
@@ -176,6 +176,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
@@ -439,6 +442,9 @@ static void test2_func(abts_case *tc, void *data)
    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,
--- a/tests/vonr/qos-flow-test.c
+++ b/tests/vonr/qos-flow-test.c
@@ -196,6 +196,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
@@ -262,6 +265,9 @@ static void test1_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
--- a/tests/vonr/session-test.c
+++ b/tests/vonr/session-test.c
@@ -196,6 +196,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
@@ -251,6 +254,9 @@ static void test1_func(abts_case *tc, void *data)
    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,
@@ -292,6 +298,9 @@ static void test1_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -396,6 +405,9 @@ static void test1_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_release_request(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -426,6 +438,9 @@ static void test1_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_release_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -653,6 +668,9 @@ static void test2_func(abts_case *tc, void *data)
    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,
@@ -708,6 +726,9 @@ static void test2_func(abts_case *tc, void *data)
    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,
@@ -749,6 +770,9 @@ static void test2_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -1072,6 +1096,9 @@ static void test3_func(abts_case *tc, void *data)
    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,
@@ -1127,6 +1154,9 @@ static void test3_func(abts_case *tc, void *data)
    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,
@@ -1168,6 +1198,9 @@ static void test3_func(abts_case *tc, void *data)
    sess->ul_nas_transport_param.dnn = 0;
    sess->ul_nas_transport_param.s_nssai = 0;

+    sess->pdu_session_establishment_param.ssc_mode = 0;
+    sess->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess,
@@ -1477,6 +1510,9 @@ static void test4_func(abts_case *tc, void *data)
    sess5->ul_nas_transport_param.dnn = 1;
    sess5->ul_nas_transport_param.s_nssai = 1;

+    sess5->pdu_session_establishment_param.ssc_mode = 1;
+    sess5->pdu_session_establishment_param.epco = 1;
+
    gsmbuf = testgsm_build_pdu_session_establishment_request(sess5);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess5,
@@ -1496,6 +1532,9 @@ static void test4_func(abts_case *tc, void *data)
    sess6->ul_nas_transport_param.dnn = 1;
    sess6->ul_nas_transport_param.s_nssai = 1;

+    sess6->pdu_session_establishment_param.ssc_mode = 1;
+    sess6->pdu_session_establishment_param.epco = 1;
+
    gsmbuf = testgsm_build_pdu_session_establishment_request(sess6);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess6,
@@ -1576,6 +1615,9 @@ static void test4_func(abts_case *tc, void *data)
    sess6->ul_nas_transport_param.dnn = 0;
    sess6->ul_nas_transport_param.s_nssai = 0;

+    sess6->pdu_session_establishment_param.ssc_mode = 0;
+    sess6->pdu_session_establishment_param.epco = 0;
+
    gsmbuf = testgsm_build_pdu_session_modification_complete(sess6);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess6,
@@ -1809,6 +1851,9 @@ static void test5_func(abts_case *tc, void *data)
    sess5->ul_nas_transport_param.dnn = 1;
    sess5->ul_nas_transport_param.s_nssai = 1;

+    sess5->pdu_session_establishment_param.ssc_mode = 1;
+    sess5->pdu_session_establishment_param.epco = 1;
+
    gsmbuf = testgsm_build_pdu_session_establishment_request(sess5);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess5,
@@ -1844,6 +1889,9 @@ static void test5_func(abts_case *tc, void *data)
    sess6->ul_nas_transport_param.dnn = 1;
    sess6->ul_nas_transport_param.s_nssai = 1;

+    sess6->pdu_session_establishment_param.ssc_mode = 1;
+    sess6->pdu_session_establishment_param.epco = 1;
+
    gsmbuf = testgsm_build_pdu_session_establishment_request(sess6);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess6,
@@ -2073,6 +2121,9 @@ static void test6_func(abts_case *tc, void *data)
    sess5->ul_nas_transport_param.dnn = 1;
    sess5->ul_nas_transport_param.s_nssai = 1;

+    sess5->pdu_session_establishment_param.ssc_mode = 1;
+    sess5->pdu_session_establishment_param.epco = 1;
+
    gsmbuf = testgsm_build_pdu_session_establishment_request(sess5);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess5,
@@ -2108,6 +2159,9 @@ static void test6_func(abts_case *tc, void *data)
    sess6->ul_nas_transport_param.dnn = 1;
    sess6->ul_nas_transport_param.s_nssai = 1;

+    sess6->pdu_session_establishment_param.ssc_mode = 1;
+    sess6->pdu_session_establishment_param.epco = 1;
+
    gsmbuf = testgsm_build_pdu_session_establishment_request(sess6);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess6,
@@ -2135,6 +2189,9 @@ static void test6_func(abts_case *tc, void *data)
    sess5->ul_nas_transport_param.dnn = 1;
    sess5->ul_nas_transport_param.s_nssai = 1;

+    sess5->pdu_session_establishment_param.ssc_mode = 1;
+    sess5->pdu_session_establishment_param.epco = 1;
+
    gsmbuf = testgsm_build_pdu_session_establishment_request(sess5);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess5,
@@ -2162,6 +2219,9 @@ static void test6_func(abts_case *tc, void *data)
    sess6->ul_nas_transport_param.dnn = 1;
    sess6->ul_nas_transport_param.s_nssai = 1;

+    sess6->pdu_session_establishment_param.ssc_mode = 1;
+    sess6->pdu_session_establishment_param.epco = 1;
+
    gsmbuf = testgsm_build_pdu_session_establishment_request(sess6);
    ABTS_PTR_NOTNULL(tc, gsmbuf);
    gmmbuf = testgmm_build_ul_nas_transport(sess6,