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https://github.com/open5gs/open5gs.git
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4599b273fa
If the UE continuously attempts to Attach while changing PDN Type, it will cause the wrong IP to be assigned. (e.g PDU-Type : IPv4v6 -> IPv4 -> IPv4v6) This is because we use two variables at the same time, one to read and store the Static IP from the Subscriber DB and one to store the IP assigned from SMF, called session->paa. When the UE attaches with PDN-Type set to IPv4v6, MME saves the allocated IP in session->paa. However, MME thinks it has been assigned a static IP based on the information in session->paa, so changing the PDN-Type may result in the wrong IP being assigned. To solve this problem, I separated the variable(session->paa) that stores the allocated IP received from SMF and the variable(session->ue_ip) that stores the Static IP read from the Subscriber DB. Therefore, the information read from the Subscriber DB (session->session_type and session->ue_ip) should not be modified.
366 lines
12 KiB
C
366 lines
12 KiB
C
/*
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* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "test-common.h"
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#include "test-fd-path.h"
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static void test1_func(abts_case *tc, void *data)
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{
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int rv;
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ogs_socknode_t *s1ap;
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ogs_socknode_t *gtpu;
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ogs_pkbuf_t *emmbuf;
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ogs_pkbuf_t *esmbuf;
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ogs_pkbuf_t *sendbuf;
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ogs_pkbuf_t *recvbuf;
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ogs_s1ap_message_t message;
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uint8_t *rx_sid = NULL;
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ogs_nas_5gs_mobile_identity_suci_t mobile_identity_suci;
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test_ue_t *test_ue = NULL;
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test_sess_t *sess = NULL;
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test_bearer_t *bearer = NULL;
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uint32_t enb_ue_s1ap_id;
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uint64_t mme_ue_s1ap_id;
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bson_t *doc = NULL;
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/* Setup Test UE & Session Context */
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memset(&mobile_identity_suci, 0, sizeof(mobile_identity_suci));
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mobile_identity_suci.h.supi_format = OGS_NAS_5GS_SUPI_FORMAT_IMSI;
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mobile_identity_suci.h.type = OGS_NAS_5GS_MOBILE_IDENTITY_SUCI;
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mobile_identity_suci.routing_indicator1 = 0;
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mobile_identity_suci.routing_indicator2 = 0xf;
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mobile_identity_suci.routing_indicator3 = 0xf;
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mobile_identity_suci.routing_indicator4 = 0xf;
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mobile_identity_suci.protection_scheme_id = OGS_PROTECTION_SCHEME_NULL;
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mobile_identity_suci.home_network_pki_value = 0;
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test_ue = test_ue_add_by_suci(&mobile_identity_suci, "1032548691");
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ogs_assert(test_ue);
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test_ue->e_cgi.cell_id = 0x1079baf;
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test_ue->nas.ksi = 0;
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test_ue->nas.value = OGS_NAS_ATTACH_TYPE_COMBINED_EPS_IMSI_ATTACH;
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#if 0 /* ipsec_reg.pcapng */
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test_ue->k_string = "8baf473f2f8fd09487cccbd7097c6862";
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test_ue->opc_string = "8E27B6AF0E692E750F32667A3B14605D";
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#else
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test_ue->k_string = "465b5ce8b199b49faa5f0a2ee238a6bc";
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test_ue->opc_string = "e8ed289deba952e4283b54e88e6183ca";
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#endif
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sess = test_sess_add_by_apn(test_ue, "internet", OGS_GTP2_RAT_TYPE_EUTRAN);
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ogs_assert(sess);
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/* eNB connects to MME */
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s1ap = tests1ap_client(AF_INET);
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ABTS_PTR_NOTNULL(tc, s1ap);
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/* eNB connects to SGW */
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gtpu = test_gtpu_server(1, AF_INET);
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ABTS_PTR_NOTNULL(tc, gtpu);
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/* Send S1-Setup Reqeust */
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sendbuf = test_s1ap_build_s1_setup_request(
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S1AP_ENB_ID_PR_macroENB_ID, 0x54f64);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive S1-Setup Response */
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recvbuf = testenb_s1ap_read(s1ap);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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tests1ap_recv(NULL, recvbuf);
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/********** Insert Subscriber in Database */
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doc = test_db_new_ims(test_ue);
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ABTS_PTR_NOTNULL(tc, doc);
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ABTS_INT_EQUAL(tc, OGS_OK, test_db_insert_ue(test_ue, doc));
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/* Send Attach Request */
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memset(&sess->pdn_connectivity_param,
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0, sizeof(sess->pdn_connectivity_param));
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sess->pdn_connectivity_param.eit = 1;
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sess->pdn_connectivity_param.request_type =
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OGS_NAS_EPS_REQUEST_TYPE_INITIAL;
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esmbuf = testesm_build_pdn_connectivity_request(
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sess, false, OGS_NAS_EPS_PDN_TYPE_IPV4V6);
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ABTS_PTR_NOTNULL(tc, esmbuf);
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memset(&test_ue->attach_request_param,
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0, sizeof(test_ue->attach_request_param));
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test_ue->attach_request_param.drx_parameter = 1;
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test_ue->attach_request_param.ms_network_capability = 1;
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test_ue->attach_request_param.tmsi_status = 1;
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test_ue->attach_request_param.mobile_station_classmark_2 = 1;
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test_ue->attach_request_param.ue_usage_setting = 1;
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emmbuf = testemm_build_attach_request(test_ue, esmbuf, true, false);
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ABTS_PTR_NOTNULL(tc, emmbuf);
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memset(&test_ue->initial_ue_param, 0, sizeof(test_ue->initial_ue_param));
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sendbuf = test_s1ap_build_initial_ue_message(
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test_ue, emmbuf, S1AP_RRC_Establishment_Cause_mo_Signalling, false);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive Authentication Request */
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recvbuf = testenb_s1ap_read(s1ap);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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tests1ap_recv(test_ue, recvbuf);
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/* Send Authentication response */
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emmbuf = testemm_build_authentication_response(test_ue);
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ABTS_PTR_NOTNULL(tc, emmbuf);
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sendbuf = test_s1ap_build_uplink_nas_transport(test_ue, emmbuf);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive Security mode Command */
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recvbuf = testenb_s1ap_read(s1ap);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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tests1ap_recv(test_ue, recvbuf);
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/* Send Security mode complete */
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test_ue->mobile_identity_imeisv_presence = true;
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emmbuf = testemm_build_security_mode_complete(test_ue);
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ABTS_PTR_NOTNULL(tc, emmbuf);
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sendbuf = test_s1ap_build_uplink_nas_transport(test_ue, emmbuf);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive ESM Information Request */
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recvbuf = testenb_s1ap_read(s1ap);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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tests1ap_recv(test_ue, recvbuf);
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/* Send ESM Information Response */
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sess->esm_information_param.pco = 1;
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esmbuf = testesm_build_esm_information_response(sess);
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ABTS_PTR_NOTNULL(tc, esmbuf);
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sendbuf = test_s1ap_build_uplink_nas_transport(test_ue, esmbuf);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive Initial Context Setup Request +
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* Attach Accept +
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* Activate Default Bearer Context Request */
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recvbuf = testenb_s1ap_read(s1ap);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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tests1ap_recv(test_ue, recvbuf);
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/* Send UE Capability Info Indication */
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sendbuf = tests1ap_build_ue_radio_capability_info_indication(test_ue);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Send Initial Context Setup Response */
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sendbuf = test_s1ap_build_initial_context_setup_response(test_ue);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Send Attach Complete + Activate default EPS bearer cotext accept */
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test_ue->nr_cgi.cell_id = 0x1234502;
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bearer = test_bearer_find_by_ue_ebi(test_ue, 5);
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ogs_assert(bearer);
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esmbuf = testesm_build_activate_default_eps_bearer_context_accept(
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bearer, false);
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ABTS_PTR_NOTNULL(tc, esmbuf);
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emmbuf = testemm_build_attach_complete(test_ue, esmbuf);
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ABTS_PTR_NOTNULL(tc, emmbuf);
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sendbuf = test_s1ap_build_uplink_nas_transport(test_ue, emmbuf);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive EMM information */
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recvbuf = testenb_s1ap_read(s1ap);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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tests1ap_recv(test_ue, recvbuf);
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/* Send GTP-U ICMP Packet */
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rv = test_gtpu_send_ping(gtpu, bearer, TEST_PING_IPV4);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive GTP-U ICMP Packet */
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recvbuf = test_gtpu_read(gtpu);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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ogs_pkbuf_free(recvbuf);
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/* Send PDN Connectivity Request */
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sess = test_sess_add_by_apn(test_ue, "ims", OGS_GTP2_RAT_TYPE_EUTRAN);
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ogs_assert(sess);
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sess->pti = 5;
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sess->pdn_connectivity_param.apn = 1;
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sess->pdn_connectivity_param.pco = 1;
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sess->pdn_connectivity_param.request_type =
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OGS_NAS_EPS_REQUEST_TYPE_INITIAL;
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esmbuf = testesm_build_pdn_connectivity_request(
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sess, true, OGS_NAS_EPS_PDN_TYPE_IPV4V6);
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ABTS_PTR_NOTNULL(tc, esmbuf);
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sendbuf = test_s1ap_build_uplink_nas_transport(test_ue, esmbuf);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive E-RAB Setup Request +
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* Activate default EPS bearer context request */
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recvbuf = testenb_s1ap_read(s1ap);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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tests1ap_recv(test_ue, recvbuf);
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/* Send E-RAB Setup Response */
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bearer = test_bearer_find_by_ue_ebi(test_ue, 6);
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ogs_assert(bearer);
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sendbuf = test_s1ap_build_e_rab_setup_response(bearer);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Send Activate default EPS bearer context accept */
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esmbuf = testesm_build_activate_default_eps_bearer_context_accept(
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bearer, true);
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ABTS_PTR_NOTNULL(tc, esmbuf);
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sendbuf = test_s1ap_build_uplink_nas_transport(test_ue, esmbuf);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Send GTP-U ICMP Packet */
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rv = test_gtpu_send_ping(gtpu, bearer, TEST_PING_IPV4);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive GTP-U ICMP Packet */
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recvbuf = test_gtpu_read(gtpu);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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ogs_pkbuf_free(recvbuf);
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/* Send AA-Request */
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test_rx_send_aar_audio(&rx_sid, sess,
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OGS_DIAM_RX_SUBSCRIPTION_ID_TYPE_END_USER_IMSI, 1, 1);
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/* Receive E-RAB Setup Request +
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* Activate dedicated EPS bearer context request */
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recvbuf = testenb_s1ap_read(s1ap);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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tests1ap_recv(test_ue, recvbuf);
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/* Send E-RAB Setup Response */
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bearer = test_bearer_find_by_ue_ebi(test_ue, 7);
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ogs_assert(bearer);
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sendbuf = test_s1ap_build_e_rab_setup_response(bearer);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Send Activate dedicated EPS bearer context accept */
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esmbuf = testesm_build_activate_dedicated_eps_bearer_context_accept(bearer);
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ABTS_PTR_NOTNULL(tc, esmbuf);
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sendbuf = test_s1ap_build_uplink_nas_transport(test_ue, esmbuf);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* DELAY is needed in dedicated EPS bearer */
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ogs_msleep(100);
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/* Send GTP-U ICMP Packet */
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rv = test_gtpu_send_ping(gtpu, bearer, TEST_PING_IPV4);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive GTP-U ICMP Packet */
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recvbuf = test_gtpu_read(gtpu);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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ogs_pkbuf_free(recvbuf);
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/* Send User-Authorization-Request */
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test_cx_send_uar(test_ue, 0);
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/* DELAY for setup IMS */
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ogs_msleep(100);
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/* Send Detach Request */
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emmbuf = testemm_build_detach_request(test_ue, 1, true, false);
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ABTS_PTR_NOTNULL(tc, emmbuf);
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sendbuf = test_s1ap_build_initial_ue_message(
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test_ue, emmbuf, S1AP_RRC_Establishment_Cause_mo_Signalling, true);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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/* Receive OLD UEContextReleaseCommand */
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enb_ue_s1ap_id = test_ue->enb_ue_s1ap_id;
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recvbuf = testenb_s1ap_read(s1ap);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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tests1ap_recv(test_ue, recvbuf);
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/* Send OLD UEContextReleaseComplete */
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sendbuf = test_s1ap_build_ue_context_release_complete(test_ue);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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test_ue->enb_ue_s1ap_id = enb_ue_s1ap_id;
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/* Receive UEContextReleaseCommand */
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recvbuf = testenb_s1ap_read(s1ap);
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ABTS_PTR_NOTNULL(tc, recvbuf);
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tests1ap_recv(test_ue, recvbuf);
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/* Send UEContextReleaseComplete */
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sendbuf = test_s1ap_build_ue_context_release_complete(test_ue);
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ABTS_PTR_NOTNULL(tc, sendbuf);
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rv = testenb_s1ap_send(s1ap, sendbuf);
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ABTS_INT_EQUAL(tc, OGS_OK, rv);
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ogs_msleep(300);
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/********** Remove Subscriber in Database */
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ABTS_INT_EQUAL(tc, OGS_OK, test_db_remove_ue(test_ue));
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/* eNB disonncect from MME */
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testenb_s1ap_close(s1ap);
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/* eNB disonncect from SGW */
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test_gtpu_close(gtpu);
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test_ue_remove(test_ue);
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}
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abts_suite *test_cx(abts_suite *suite)
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{
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suite = ADD_SUITE(suite)
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abts_run_test(suite, test1_func, NULL);
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return suite;
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}
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