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/*
* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
*
* This file is part of Open5GS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "test-common.h"
ogs_pkbuf_t *test_s2b_build_create_session_request(
uint8_t type, test_sess_t *sess, bool handover_ind)
{
int rv;
ogs_session_t *session = NULL;
test_ue_t *test_ue = NULL;
test_bearer_t *bearer = NULL;
ogs_gtp2_message_t gtp_message;
ogs_gtp2_create_session_request_t *req =
>p_message.create_session_request;
uint8_t msisdn_buf[OGS_MAX_MSISDN_LEN];
int msisdn_len;
ogs_gtp2_uli_t uli;
char uli_buf[OGS_GTP2_MAX_ULI_LEN];
ogs_gtp2_f_teid_t test_s2b_c_teid, test_s2b_u_teid[OGS_BEARER_PER_UE];
int len, test_s2b_u_len;
ogs_paa_t paa;
ogs_gtp2_ambr_t ambr;
ogs_gtp2_bearer_qos_t bearer_qos;
char bearer_qos_buf[OGS_BEARER_PER_UE][GTP2_BEARER_QOS_LEN];
char apn[OGS_MAX_APN_LEN+1];
ogs_gtp2_indication_t indication;
ogs_assert(sess);
test_ue = sess->test_ue;
ogs_assert(test_ue);
ogs_assert(0 == ogs_list_count(&sess->bearer_list));
bearer = test_bearer_add(sess, 5);
ogs_assert(bearer);
ogs_debug("Create Session Request");
memset(>p_message, 0, sizeof(ogs_gtp2_message_t));
if (handover_ind == true) {
memset(&indication, 0, sizeof(ogs_gtp2_indication_t));
indication.handover_indication = 1;
req->indication_flags.presence = 1;
req->indication_flags.data = &indication;
req->indication_flags.len = sizeof(ogs_gtp2_indication_t);
}
ogs_assert(test_ue->imsi_len);
req->imsi.presence = 1;
req->imsi.data = test_ue->imsi_buf;
req->imsi.len = test_ue->imsi_len;
ogs_bcd_to_buffer(TEST_MSISDN, msisdn_buf, &msisdn_len);
req->msisdn.presence = 1;
req->msisdn.data = msisdn_buf;
req->msisdn.len = msisdn_len;
memset(&uli, 0, sizeof(ogs_gtp2_uli_t));
uli.flags.e_cgi = 1;
uli.flags.tai = 1;
ogs_nas_from_plmn_id(&uli.tai.nas_plmn_id, &test_ue->e_tai.plmn_id);
uli.tai.tac = test_ue->e_tai.tac;
ogs_nas_from_plmn_id(&uli.e_cgi.nas_plmn_id, &test_ue->e_cgi.plmn_id);
uli.e_cgi.cell_id = test_ue->e_cgi.cell_id;
req->user_location_information.presence = 1;
ogs_gtp2_build_uli(&req->user_location_information, &uli,
uli_buf, OGS_GTP2_MAX_ULI_LEN);
req->serving_network.presence = 1;
req->serving_network.data = &uli.tai.nas_plmn_id;
req->serving_network.len = sizeof(uli.tai.nas_plmn_id);
req->rat_type.presence = 1;
req->rat_type.u8 = OGS_GTP2_RAT_TYPE_WLAN;
memset(&test_s2b_c_teid, 0, sizeof(ogs_gtp2_f_teid_t));
test_s2b_c_teid.interface_type = OGS_GTP2_F_TEID_S2B_EPDG_GTP_C;
test_s2b_c_teid.teid = htobe32(sess->epdg_s2b_c_teid);
ogs_assert(sess->gnode->sock);
rv = ogs_gtp2_sockaddr_to_f_teid(
&sess->gnode->sock->local_addr, NULL, &test_s2b_c_teid, &len);
ogs_assert(rv == OGS_OK);
req->sender_f_teid_for_control_plane.presence = 1;
req->sender_f_teid_for_control_plane.data = &test_s2b_c_teid;
req->sender_f_teid_for_control_plane.len = len;
req->access_point_name.presence = 1;
req->access_point_name.len = ogs_fqdn_build(
apn, sess->apn, strlen(sess->apn));
req->access_point_name.data = apn;
req->selection_mode.presence = 1;
req->selection_mode.u8 =
OGS_GTP2_SELECTION_MODE_MS_OR_NETWORK_PROVIDED_APN;
memset(&paa, 0, sizeof(paa));
paa.session_type = OGS_PDU_SESSION_TYPE_IPV4V6;
req->pdn_address_allocation.presence = 1;
req->pdn_address_allocation.data = &paa;
req->pdn_address_allocation.len = OGS_PAA_IPV4V6_LEN;
memset(&ambr, 0, sizeof(ogs_gtp2_ambr_t));
ambr.uplink = htobe32(50000);
ambr.downlink = htobe32(150000);
req->aggregate_maximum_bit_rate.presence = 1;
req->aggregate_maximum_bit_rate.data = &ambr;
req->aggregate_maximum_bit_rate.len = sizeof(ambr);
int i = 0;
ogs_list_for_each(&sess->bearer_list, bearer) {
ogs_assert(i < OGS_BEARER_PER_UE);
req->bearer_contexts_to_be_created[i].presence = 1;
req->bearer_contexts_to_be_created[i].eps_bearer_id.presence = 1;
req->bearer_contexts_to_be_created[i].eps_bearer_id.u8 = bearer->ebi;
memset(&test_s2b_u_teid[i], 0, sizeof(ogs_gtp2_f_teid_t));
test_s2b_u_teid[i].teid = htobe32(bearer->enb_s1u_teid);
test_s2b_u_teid[i].interface_type = OGS_GTP2_F_TEID_S2B_U_EPDG_GTP_U;
ogs_assert(sess->gnode->sock);
rv = ogs_gtp2_sockaddr_to_f_teid(
&sess->gnode->sock->local_addr, NULL,
&test_s2b_u_teid[i], &test_s2b_u_len);
req->bearer_contexts_to_be_created[i].s2b_u_epdg_f_teid_5.presence = 1;
req->bearer_contexts_to_be_created[i].s2b_u_epdg_f_teid_5.data =
&test_s2b_u_teid[i];
req->bearer_contexts_to_be_created[i].s2b_u_epdg_f_teid_5.len =
test_s2b_u_len;
memset(&bearer_qos, 0, sizeof(bearer_qos));
bearer_qos.qci = 8;
bearer_qos.priority_level = 1;
bearer_qos.pre_emption_capability = 0;
bearer_qos.pre_emption_vulnerability = 0;
req->bearer_contexts_to_be_created[i].bearer_level_qos.presence = 1;
ogs_gtp2_build_bearer_qos(
&req->bearer_contexts_to_be_created[i].bearer_level_qos,
&bearer_qos, bearer_qos_buf[i], GTP2_BEARER_QOS_LEN);
i++;
}
req->recovery.presence = 1;
req->recovery.u8 = 66;
req->additional_protocol_configuration_options.presence = 1;
req->additional_protocol_configuration_options.data =
(uint8_t *)"\x80\x00\x0d\x00";
req->additional_protocol_configuration_options.len = 4;
gtp_message.h.type = type;
return ogs_gtp2_build_msg(>p_message);
}
ogs_pkbuf_t *test_s2b_build_delete_session_request(
uint8_t type, test_sess_t *sess)
{
int rv;
test_bearer_t *bearer = NULL;
ogs_gtp2_message_t gtp_message;
ogs_gtp2_delete_session_request_t *req = >p_message.delete_session_request;
ogs_assert(sess);
bearer = ogs_list_first(&sess->bearer_list);
ogs_assert(bearer);
ogs_debug("Delete Session Request");
memset(>p_message, 0, sizeof(ogs_gtp2_message_t));
req->linked_eps_bearer_id.presence = 1;
req->linked_eps_bearer_id.u8 = bearer->ebi;
gtp_message.h.type = type;
return ogs_gtp2_build_msg(>p_message);
}
ogs_pkbuf_t *test_s2b_build_create_bearer_response(
uint8_t type, test_bearer_t *bearer)
{
int rv;
ogs_session_t *session = NULL;
ogs_gtp2_message_t gtp_message;
ogs_gtp2_create_bearer_response_t *rsp = NULL;
test_sess_t *sess = NULL;
ogs_gtp2_cause_t cause;
ogs_gtp2_f_teid_t epdg_s2b_u_teid, smf_s2b_u_teid;
int len;
ogs_assert(bearer);
sess = bearer->sess;
ogs_assert(sess);
ogs_debug("Create Bearer Response");
rsp = >p_message.create_bearer_response;
memset(>p_message, 0, sizeof(ogs_gtp2_message_t));
memset(&cause, 0, sizeof(cause));
cause.value = OGS_GTP2_CAUSE_REQUEST_ACCEPTED;
rsp->cause.presence = 1;
rsp->cause.data = &cause;
rsp->cause.len = sizeof(cause);
/* Bearer Context : EBI */
rsp->bearer_contexts.presence = 1;
rsp->bearer_contexts.eps_bearer_id.presence = 1;
rsp->bearer_contexts.eps_bearer_id.u8 = bearer->ebi;
/* Data Plane(DL) : ePDG-S2B-U */
memset(&epdg_s2b_u_teid, 0, sizeof(ogs_gtp2_f_teid_t));
epdg_s2b_u_teid.interface_type = OGS_GTP2_F_TEID_S2B_U_EPDG_GTP_U;
epdg_s2b_u_teid.teid = htobe32(bearer->enb_s1u_teid);
ogs_assert(sess->gnode->sock);
rv = ogs_gtp2_sockaddr_to_f_teid(
&sess->gnode->sock->local_addr, NULL, &epdg_s2b_u_teid, &len);
if (rv != OGS_OK) {
ogs_error("ogs_gtp2_sockaddr_to_f_teid() failed");
return NULL;
}
rsp->bearer_contexts.s2b_u_epdg_f_teid_8.presence = 1;
rsp->bearer_contexts.s2b_u_epdg_f_teid_8.data = &epdg_s2b_u_teid;
rsp->bearer_contexts.s2b_u_epdg_f_teid_8.len = len;
/* Data Plane(UL) : SMF-S2B-U */
memset(&smf_s2b_u_teid, 0, sizeof(ogs_gtp2_f_teid_t));
smf_s2b_u_teid.interface_type = OGS_GTP2_F_TEID_S2B_U_PGW_GTP_U;
smf_s2b_u_teid.teid = htobe32(bearer->sgw_s1u_teid);
rv = ogs_gtp2_ip_to_f_teid(&bearer->sgw_s1u_ip, &smf_s2b_u_teid, &len);
if (rv != OGS_OK) {
ogs_error("ogs_gtp2_ip_to_f_teid() failed");
return NULL;
}
rsp->bearer_contexts.s2b_u_pgw_f_teid.presence = 1;
rsp->bearer_contexts.s2b_u_pgw_f_teid.data = &smf_s2b_u_teid;
rsp->bearer_contexts.s2b_u_pgw_f_teid.len = OGS_GTP2_F_TEID_IPV4_LEN;
/* Bearer Context : Cause */
rsp->bearer_contexts.cause.presence = 1;
rsp->bearer_contexts.cause.len = sizeof(cause);
rsp->bearer_contexts.cause.data = &cause;
gtp_message.h.type = type;
return ogs_gtp2_build_msg(>p_message);
}
ogs_pkbuf_t *test_s2b_build_delete_bearer_response(
uint8_t type, test_bearer_t *bearer)
{
int rv;
ogs_session_t *session = NULL;
ogs_gtp2_message_t gtp_message;
ogs_gtp2_delete_bearer_response_t *rsp = NULL;
ogs_gtp2_cause_t cause;
ogs_assert(bearer);
ogs_debug("Delete Bearer Response");
rsp = >p_message.delete_bearer_response;
memset(>p_message, 0, sizeof(ogs_gtp2_message_t));
memset(&cause, 0, sizeof(cause));
cause.value = OGS_GTP2_CAUSE_REQUEST_ACCEPTED;
rsp->cause.presence = 1;
rsp->cause.data = &cause;
rsp->cause.len = sizeof(cause);
rsp->linked_eps_bearer_id.presence = 1;
rsp->linked_eps_bearer_id.u8 = bearer->ebi;
gtp_message.h.type = type;
return ogs_gtp2_build_msg(>p_message);
}
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