forked from acouzens/open5gs
743 lines
26 KiB
C
743 lines
26 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 "gtp/gtp-types.h"
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#include "gtp/gtp-conv.h"
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#include "gtp/gtp-message.h"
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#include "gtp/gtp-node.h"
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#include "mme-context.h"
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#include "mme-s11-build.h"
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int mme_s11_build_create_session_request(
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ogs_pkbuf_t **pkbuf, uint8_t type, mme_sess_t *sess)
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{
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int rv;
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pdn_t *pdn = NULL;
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mme_ue_t *mme_ue = NULL;
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mme_bearer_t *bearer = NULL;
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gtp_message_t gtp_message;
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gtp_create_session_request_t *req = >p_message.create_session_request;
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gtp_uli_t uli;
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char uli_buf[GTP_MAX_ULI_LEN];
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gtp_f_teid_t mme_s11_teid, pgw_s5c_teid;
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int len;
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gtp_ambr_t ambr;
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gtp_bearer_qos_t bearer_qos;
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char bearer_qos_buf[GTP_BEARER_QOS_LEN];
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gtp_ue_timezone_t ue_timezone;
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struct timeval now;
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struct tm time_exp;
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char apn[MAX_APN_LEN];
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ogs_assert(sess);
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pdn = sess->pdn;
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ogs_assert(pdn);
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bearer = mme_default_bearer_in_sess(sess);
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ogs_assert(bearer);
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mme_ue = sess->mme_ue;
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ogs_assert(mme_ue);
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ogs_debug("[MME] Create Session Request");
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ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
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mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
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memset(>p_message, 0, sizeof(gtp_message_t));
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ogs_assert(mme_ue->imsi_len);
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req->imsi.presence = 1;
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req->imsi.data = mme_ue->imsi;
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req->imsi.len = mme_ue->imsi_len;
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memset(&uli, 0, sizeof(gtp_uli_t));
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uli.flags.e_cgi = 1;
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uli.flags.tai = 1;
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memcpy(&uli.tai.plmn_id, &mme_ue->tai.plmn_id, sizeof(uli.tai.plmn_id));
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uli.tai.tac = mme_ue->tai.tac;
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memcpy(&uli.e_cgi.plmn_id, &mme_ue->e_cgi.plmn_id,
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sizeof(uli.e_cgi.plmn_id));
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uli.e_cgi.cell_id = mme_ue->e_cgi.cell_id;
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req->user_location_information.presence = 1;
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gtp_build_uli(&req->user_location_information, &uli,
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uli_buf, GTP_MAX_ULI_LEN);
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req->serving_network.presence = 1;
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req->serving_network.data = &mme_ue->tai.plmn_id;
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req->serving_network.len = sizeof(mme_ue->tai.plmn_id);
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req->rat_type.presence = 1;
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req->rat_type.u8 = GTP_RAT_TYPE_EUTRAN;
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memset(&mme_s11_teid, 0, sizeof(gtp_f_teid_t));
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mme_s11_teid.interface_type = GTP_F_TEID_S11_MME_GTP_C;
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mme_s11_teid.teid = htonl(mme_ue->mme_s11_teid);
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rv = gtp_sockaddr_to_f_teid(
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mme_self()->gtpc_addr, mme_self()->gtpc_addr6, &mme_s11_teid, &len);
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ogs_assert(rv == OGS_OK);
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req->sender_f_teid_for_control_plane.presence = 1;
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req->sender_f_teid_for_control_plane.data = &mme_s11_teid;
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req->sender_f_teid_for_control_plane.len = len;
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memset(&pgw_s5c_teid, 0, sizeof(gtp_f_teid_t));
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pgw_s5c_teid.interface_type = GTP_F_TEID_S5_S8_PGW_GTP_C;
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if (pdn->pgw_ip.ipv4 || pdn->pgw_ip.ipv6) {
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pgw_s5c_teid.ipv4 = pdn->pgw_ip.ipv4;
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pgw_s5c_teid.ipv6 = pdn->pgw_ip.ipv6;
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if (pgw_s5c_teid.ipv4 && pgw_s5c_teid.ipv6) {
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pgw_s5c_teid.both.addr = pdn->pgw_ip.both.addr;
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memcpy(pgw_s5c_teid.both.addr6, pdn->pgw_ip.both.addr6,
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sizeof pdn->pgw_ip.both.addr6);
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req->pgw_s5_s8_address_for_control_plane_or_pmip.len =
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GTP_F_TEID_IPV4V6_LEN;
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} else if (pgw_s5c_teid.ipv4) {
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/* pdn->pgw_ip always uses both ip address memory */
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pgw_s5c_teid.addr = pdn->pgw_ip.both.addr;
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req->pgw_s5_s8_address_for_control_plane_or_pmip.len =
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GTP_F_TEID_IPV4_LEN;
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} else if (pgw_s5c_teid.ipv6) {
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/* pdn->pgw_ip always uses both ip address memory */
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memcpy(pgw_s5c_teid.addr6, pdn->pgw_ip.both.addr6,
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sizeof pdn->pgw_ip.both.addr6);
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req->pgw_s5_s8_address_for_control_plane_or_pmip.len =
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GTP_F_TEID_IPV6_LEN;
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}
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req->pgw_s5_s8_address_for_control_plane_or_pmip.presence = 1;
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req->pgw_s5_s8_address_for_control_plane_or_pmip.data =
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&pgw_s5c_teid;
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} else {
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ogs_sockaddr_t *pgw_addr = NULL;
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ogs_sockaddr_t *pgw_addr6 = NULL;
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pgw_addr = mme_pgw_addr_find_by_apn(
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&mme_self()->pgw_list, AF_INET, pdn->apn);
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pgw_addr6 = mme_pgw_addr_find_by_apn(
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&mme_self()->pgw_list, AF_INET6, pdn->apn);
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if (!pgw_addr && !pgw_addr6) {
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pgw_addr = mme_self()->pgw_addr;
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pgw_addr6 = mme_self()->pgw_addr6;
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}
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rv = gtp_sockaddr_to_f_teid(pgw_addr, pgw_addr6, &pgw_s5c_teid, &len);
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ogs_assert(rv == OGS_OK);
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req->pgw_s5_s8_address_for_control_plane_or_pmip.presence = 1;
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req->pgw_s5_s8_address_for_control_plane_or_pmip.data = &pgw_s5c_teid;
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req->pgw_s5_s8_address_for_control_plane_or_pmip.len = len;
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}
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req->access_point_name.presence = 1;
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req->access_point_name.len = fqdn_build(apn, pdn->apn, strlen(pdn->apn));
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req->access_point_name.data = apn;
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req->selection_mode.presence = 1;
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req->selection_mode.u8 =
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GTP_SELECTION_MODE_MS_OR_NETWORK_PROVIDED_APN | 0xfc;
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ogs_assert(sess->request_type.pdn_type ==
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NAS_PDN_CONNECTIVITY_PDN_TYPE_IPV4 ||
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sess->request_type.pdn_type ==
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NAS_PDN_CONNECTIVITY_PDN_TYPE_IPV6 ||
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sess->request_type.pdn_type ==
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NAS_PDN_CONNECTIVITY_PDN_TYPE_IPV4V6);
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if (pdn->pdn_type == HSS_PDN_TYPE_IPV4 ||
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pdn->pdn_type == HSS_PDN_TYPE_IPV6 ||
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pdn->pdn_type == HSS_PDN_TYPE_IPV4V6) {
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req->pdn_type.u8 = ((pdn->pdn_type + 1) & sess->request_type.pdn_type);
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ogs_assert(req->pdn_type.u8 != 0);
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} else if (pdn->pdn_type == HSS_PDN_TYPE_IPV4_OR_IPV6) {
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req->pdn_type.u8 = sess->request_type.pdn_type;
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} else
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ogs_assert_if_reached();
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req->pdn_type.presence = 1;
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pdn->paa.pdn_type = req->pdn_type.u8;
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req->pdn_address_allocation.data = &pdn->paa;
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if (req->pdn_type.u8 == GTP_PDN_TYPE_IPV4)
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req->pdn_address_allocation.len = PAA_IPV4_LEN;
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else if (req->pdn_type.u8 == GTP_PDN_TYPE_IPV6)
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req->pdn_address_allocation.len = PAA_IPV6_LEN;
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else if (req->pdn_type.u8 == GTP_PDN_TYPE_IPV4V6)
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req->pdn_address_allocation.len = PAA_IPV4V6_LEN;
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else
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ogs_assert_if_reached();
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req->pdn_address_allocation.presence = 1;
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req->maximum_apn_restriction.presence = 1;
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req->maximum_apn_restriction.u8 = GTP_APN_NO_RESTRICTION;
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if (pdn->ambr.uplink || pdn->ambr.downlink) {
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memset(&ambr, 0, sizeof(gtp_ambr_t));
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ambr.uplink = htonl(pdn->ambr.uplink);
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ambr.downlink = htonl(pdn->ambr.downlink);
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req->aggregate_maximum_bit_rate.presence = 1;
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req->aggregate_maximum_bit_rate.data = &ambr;
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req->aggregate_maximum_bit_rate.len = sizeof(ambr);
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}
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if (sess->ue_pco.length && sess->ue_pco.buffer) {
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req->protocol_configuration_options.presence = 1;
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req->protocol_configuration_options.data = sess->ue_pco.buffer;
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req->protocol_configuration_options.len = sess->ue_pco.length;
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}
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req->bearer_contexts_to_be_created.presence = 1;
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req->bearer_contexts_to_be_created.eps_bearer_id.presence = 1;
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req->bearer_contexts_to_be_created.eps_bearer_id.u8 = bearer->ebi;
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memset(&bearer_qos, 0, sizeof(bearer_qos));
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bearer_qos.qci = pdn->qos.qci;
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bearer_qos.priority_level = pdn->qos.arp.priority_level;
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bearer_qos.pre_emption_capability = pdn->qos.arp.pre_emption_capability;
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bearer_qos.pre_emption_vulnerability =
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pdn->qos.arp.pre_emption_vulnerability;
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req->bearer_contexts_to_be_created.bearer_level_qos.presence = 1;
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gtp_build_bearer_qos(&req->bearer_contexts_to_be_created.bearer_level_qos,
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&bearer_qos, bearer_qos_buf, GTP_BEARER_QOS_LEN);
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/* UE Time Zone */
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memset(&ue_timezone, 0, sizeof(ue_timezone));
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ogs_gettimeofday(&now);
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ogs_localtime(now.tv_sec, &time_exp);
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if (time_exp.tm_gmtoff >= 0) {
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ue_timezone.timezone = GTP_TIME_TO_BCD(time_exp.tm_gmtoff / 900);
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} else {
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ue_timezone.timezone = GTP_TIME_TO_BCD((-time_exp.tm_gmtoff) / 900);
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ue_timezone.timezone |= 0x08;
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}
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/* quarters of an hour */
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ue_timezone.daylight_saving_time =
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GTP_UE_TIME_ZONE_NO_ADJUSTMENT_FOR_DAYLIGHT_SAVING_TIME;
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req->ue_time_zone.presence = 1;
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req->ue_time_zone.data = &ue_timezone;
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req->ue_time_zone.len = sizeof(ue_timezone);
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req->charging_characteristics.presence = 1;
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req->charging_characteristics.data = (uint8_t *)"\x54\x00";
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req->charging_characteristics.len = 2;
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gtp_message.h.type = type;
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rv = gtp_build_msg(pkbuf, >p_message);
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ogs_assert(rv == OGS_OK);
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return OGS_OK;
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}
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int mme_s11_build_modify_bearer_request(ogs_pkbuf_t **pkbuf,
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uint8_t type, mme_bearer_t *bearer, int uli_presence)
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{
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int rv;
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gtp_message_t gtp_message;
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gtp_modify_bearer_request_t *req = >p_message.modify_bearer_request;
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gtp_f_teid_t enb_s1u_teid;
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int len;
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gtp_uli_t uli;
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char uli_buf[GTP_MAX_ULI_LEN];
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mme_ue_t *mme_ue = NULL;
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ogs_assert(bearer);
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mme_ue = bearer->mme_ue;
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ogs_assert(mme_ue);
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ogs_debug("[MME] Modifty Bearer Request");
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ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
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mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
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ogs_debug(" ENB_S1U_TEID[%d] SGW_S1U_TEID[%d]",
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bearer->enb_s1u_teid, bearer->sgw_s1u_teid);
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memset(>p_message, 0, sizeof(gtp_message_t));
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/* Bearer Context : EBI */
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req->bearer_contexts_to_be_modified.presence = 1;
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req->bearer_contexts_to_be_modified.eps_bearer_id.presence = 1;
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req->bearer_contexts_to_be_modified.eps_bearer_id.u8 = bearer->ebi;
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/* Data Plane(DL) : ENB-S1U */
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memset(&enb_s1u_teid, 0, sizeof(gtp_f_teid_t));
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enb_s1u_teid.interface_type = GTP_F_TEID_S1_U_ENODEB_GTP_U;
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enb_s1u_teid.teid = htonl(bearer->enb_s1u_teid);
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rv = gtp_ip_to_f_teid(&bearer->enb_s1u_ip, &enb_s1u_teid, &len);
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ogs_assert(rv == OGS_OK);
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req->bearer_contexts_to_be_modified.s1_u_enodeb_f_teid.presence = 1;
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req->bearer_contexts_to_be_modified.s1_u_enodeb_f_teid.data = &enb_s1u_teid;
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req->bearer_contexts_to_be_modified.s1_u_enodeb_f_teid.len = len;
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if (uli_presence) {
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/* User Location Information(ULI) */
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memset(&uli, 0, sizeof(gtp_uli_t));
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uli.flags.e_cgi = 1;
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uli.flags.tai = 1;
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memcpy(&uli.tai.plmn_id, &mme_ue->tai.plmn_id, sizeof(uli.tai.plmn_id));
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uli.tai.tac = mme_ue->tai.tac;
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memcpy(&uli.e_cgi.plmn_id, &mme_ue->e_cgi.plmn_id,
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sizeof(uli.e_cgi.plmn_id));
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uli.e_cgi.cell_id = mme_ue->e_cgi.cell_id;
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req->user_location_information.presence = 1;
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gtp_build_uli(&req->user_location_information, &uli,
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uli_buf, GTP_MAX_ULI_LEN);
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}
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gtp_message.h.type = type;
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rv = gtp_build_msg(pkbuf, >p_message);
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ogs_assert(rv == OGS_OK);
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return OGS_OK;
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}
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int mme_s11_build_delete_session_request(
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ogs_pkbuf_t **pkbuf, uint8_t type, mme_sess_t *sess)
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{
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int rv;
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gtp_message_t gtp_message;
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gtp_delete_session_request_t *req = >p_message.delete_session_request;
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gtp_uli_t uli;
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char uli_buf[GTP_MAX_ULI_LEN];
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gtp_indication_t indication;
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mme_bearer_t *bearer = NULL;
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mme_ue_t *mme_ue = NULL;
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ogs_assert(sess);
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mme_ue = sess->mme_ue;
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ogs_assert(mme_ue);
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bearer = mme_default_bearer_in_sess(sess);
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ogs_assert(bearer);
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ogs_debug("[MME] Delete Session Request");
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ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
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mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
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memset(>p_message, 0, sizeof(gtp_message_t));
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req->linked_eps_bearer_id.presence = 1;
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req->linked_eps_bearer_id.u8 = bearer->ebi;
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/* User Location Information(ULI) */
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memset(&uli, 0, sizeof(gtp_uli_t));
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uli.flags.e_cgi = 1;
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uli.flags.tai = 1;
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memcpy(&uli.tai.plmn_id, &mme_ue->tai.plmn_id, sizeof(uli.tai.plmn_id));
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uli.tai.tac = mme_ue->tai.tac;
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memcpy(&uli.e_cgi.plmn_id, &mme_ue->e_cgi.plmn_id, sizeof(uli.tai.plmn_id));
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uli.e_cgi.cell_id = mme_ue->e_cgi.cell_id;
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req->user_location_information.presence = 1;
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gtp_build_uli(&req->user_location_information, &uli,
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uli_buf, GTP_MAX_ULI_LEN);
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memset(&indication, 0, sizeof(gtp_indication_t));
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indication.oi = 1;
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req->indication_flags.presence = 1;
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req->indication_flags.data = &indication;
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req->indication_flags.len = sizeof(gtp_indication_t);
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gtp_message.h.type = type;
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rv = gtp_build_msg(pkbuf, >p_message);
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ogs_assert(rv == OGS_OK);
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return OGS_OK;
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}
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int mme_s11_build_create_bearer_response(
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ogs_pkbuf_t **pkbuf, uint8_t type, mme_bearer_t *bearer)
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{
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int rv;
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gtp_message_t gtp_message;
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gtp_create_bearer_response_t *rsp = >p_message.create_bearer_response;
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gtp_cause_t cause;
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gtp_f_teid_t enb_s1u_teid, sgw_s1u_teid;
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int len;
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gtp_uli_t uli;
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char uli_buf[GTP_MAX_ULI_LEN];
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gtp_ue_timezone_t ue_timezone;
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struct timeval now;
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|
struct tm time_exp;
|
|
|
|
mme_ue_t *mme_ue = NULL;
|
|
|
|
ogs_assert(bearer);
|
|
mme_ue = bearer->mme_ue;
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_debug("[MME] Create Bearer Response");
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
|
|
|
memset(>p_message, 0, sizeof(gtp_message_t));
|
|
|
|
/* Set Cause */
|
|
memset(&cause, 0, sizeof(cause));
|
|
cause.value = GTP_CAUSE_REQUEST_ACCEPTED;
|
|
rsp->cause.presence = 1;
|
|
rsp->cause.len = sizeof(cause);
|
|
rsp->cause.data = &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) : ENB-S1U */
|
|
memset(&enb_s1u_teid, 0, sizeof(gtp_f_teid_t));
|
|
enb_s1u_teid.interface_type = GTP_F_TEID_S1_U_ENODEB_GTP_U;
|
|
enb_s1u_teid.teid = htonl(bearer->enb_s1u_teid);
|
|
rv = gtp_ip_to_f_teid(&bearer->enb_s1u_ip, &enb_s1u_teid, &len);
|
|
ogs_assert(rv == OGS_OK);
|
|
rsp->bearer_contexts.s1_u_enodeb_f_teid.presence = 1;
|
|
rsp->bearer_contexts.s1_u_enodeb_f_teid.data = &enb_s1u_teid;
|
|
rsp->bearer_contexts.s1_u_enodeb_f_teid.len = len;
|
|
|
|
/* Data Plane(UL) : SGW-S1U */
|
|
memset(&sgw_s1u_teid, 0, sizeof(gtp_f_teid_t));
|
|
sgw_s1u_teid.interface_type = GTP_F_TEID_S1_U_SGW_GTP_U;
|
|
sgw_s1u_teid.teid = htonl(bearer->sgw_s1u_teid);
|
|
rv = gtp_ip_to_f_teid(&bearer->sgw_s1u_ip, &sgw_s1u_teid, &len);
|
|
ogs_assert(rv == OGS_OK);
|
|
rsp->bearer_contexts.s4_u_sgsn_f_teid.presence = 1;
|
|
rsp->bearer_contexts.s4_u_sgsn_f_teid.data = &sgw_s1u_teid;
|
|
rsp->bearer_contexts.s4_u_sgsn_f_teid.len = GTP_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;
|
|
|
|
/* User Location Information(ULI) */
|
|
memset(&uli, 0, sizeof(gtp_uli_t));
|
|
uli.flags.e_cgi = 1;
|
|
uli.flags.tai = 1;
|
|
memcpy(&uli.tai.plmn_id, &mme_ue->tai.plmn_id, sizeof(uli.tai.plmn_id));
|
|
uli.tai.tac = mme_ue->tai.tac;
|
|
memcpy(&uli.e_cgi.plmn_id, &mme_ue->e_cgi.plmn_id,
|
|
sizeof(uli.e_cgi.plmn_id));
|
|
uli.e_cgi.cell_id = mme_ue->e_cgi.cell_id;
|
|
rsp->user_location_information.presence = 1;
|
|
gtp_build_uli(&rsp->user_location_information, &uli,
|
|
uli_buf, GTP_MAX_ULI_LEN);
|
|
|
|
/* UE Time Zone */
|
|
memset(&ue_timezone, 0, sizeof(ue_timezone));
|
|
ogs_gettimeofday(&now);
|
|
ogs_localtime(now.tv_sec, &time_exp);
|
|
if (time_exp.tm_gmtoff >= 0) {
|
|
ue_timezone.timezone = GTP_TIME_TO_BCD(time_exp.tm_gmtoff / 900);
|
|
} else {
|
|
ue_timezone.timezone = GTP_TIME_TO_BCD((-time_exp.tm_gmtoff) / 900);
|
|
ue_timezone.timezone |= 0x08;
|
|
}
|
|
ue_timezone.daylight_saving_time =
|
|
GTP_UE_TIME_ZONE_NO_ADJUSTMENT_FOR_DAYLIGHT_SAVING_TIME;
|
|
rsp->ue_time_zone.presence = 1;
|
|
rsp->ue_time_zone.data = &ue_timezone;
|
|
rsp->ue_time_zone.len = sizeof(ue_timezone);
|
|
|
|
gtp_message.h.type = type;
|
|
rv = gtp_build_msg(pkbuf, >p_message);
|
|
ogs_assert(rv == OGS_OK);
|
|
|
|
return OGS_OK;
|
|
}
|
|
|
|
int mme_s11_build_update_bearer_response(
|
|
ogs_pkbuf_t **pkbuf, uint8_t type, mme_bearer_t *bearer)
|
|
{
|
|
int rv;
|
|
gtp_message_t gtp_message;
|
|
gtp_update_bearer_response_t *rsp = >p_message.update_bearer_response;
|
|
|
|
gtp_cause_t cause;
|
|
gtp_uli_t uli;
|
|
char uli_buf[GTP_MAX_ULI_LEN];
|
|
gtp_ue_timezone_t ue_timezone;
|
|
struct timeval now;
|
|
struct tm time_exp;
|
|
|
|
mme_ue_t *mme_ue = NULL;
|
|
|
|
ogs_assert(bearer);
|
|
mme_ue = bearer->mme_ue;
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_debug("[MME] Update Bearer Response");
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
|
|
|
memset(>p_message, 0, sizeof(gtp_message_t));
|
|
|
|
/* Set Cause */
|
|
memset(&cause, 0, sizeof(cause));
|
|
cause.value = GTP_CAUSE_REQUEST_ACCEPTED;
|
|
rsp->cause.presence = 1;
|
|
rsp->cause.len = sizeof(cause);
|
|
rsp->cause.data = &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;
|
|
|
|
/* Bearer Context : Cause */
|
|
rsp->bearer_contexts.cause.presence = 1;
|
|
rsp->bearer_contexts.cause.len = sizeof(cause);
|
|
rsp->bearer_contexts.cause.data = &cause;
|
|
|
|
/* User Location Information(ULI) */
|
|
memset(&uli, 0, sizeof(gtp_uli_t));
|
|
uli.flags.e_cgi = 1;
|
|
uli.flags.tai = 1;
|
|
memcpy(&uli.tai.plmn_id, &mme_ue->tai.plmn_id, sizeof(uli.tai.plmn_id));
|
|
uli.tai.tac = mme_ue->tai.tac;
|
|
memcpy(&uli.e_cgi.plmn_id, &mme_ue->e_cgi.plmn_id,
|
|
sizeof(uli.e_cgi.plmn_id));
|
|
uli.e_cgi.cell_id = mme_ue->e_cgi.cell_id;
|
|
rsp->user_location_information.presence = 1;
|
|
gtp_build_uli(&rsp->user_location_information, &uli,
|
|
uli_buf, GTP_MAX_ULI_LEN);
|
|
|
|
/* UE Time Zone */
|
|
memset(&ue_timezone, 0, sizeof(ue_timezone));
|
|
ogs_gettimeofday(&now);
|
|
ogs_localtime(now.tv_sec, &time_exp);
|
|
if (time_exp.tm_gmtoff >= 0) {
|
|
ue_timezone.timezone = GTP_TIME_TO_BCD(time_exp.tm_gmtoff / 900);
|
|
} else {
|
|
ue_timezone.timezone = GTP_TIME_TO_BCD((-time_exp.tm_gmtoff) / 900);
|
|
ue_timezone.timezone |= 0x08;
|
|
}
|
|
ue_timezone.daylight_saving_time =
|
|
GTP_UE_TIME_ZONE_NO_ADJUSTMENT_FOR_DAYLIGHT_SAVING_TIME;
|
|
rsp->ue_time_zone.presence = 1;
|
|
rsp->ue_time_zone.data = &ue_timezone;
|
|
rsp->ue_time_zone.len = sizeof(ue_timezone);
|
|
|
|
gtp_message.h.type = type;
|
|
rv = gtp_build_msg(pkbuf, >p_message);
|
|
ogs_assert(rv == OGS_OK);
|
|
|
|
return OGS_OK;
|
|
}
|
|
|
|
int mme_s11_build_delete_bearer_response(
|
|
ogs_pkbuf_t **pkbuf, uint8_t type, mme_bearer_t *bearer)
|
|
{
|
|
int rv;
|
|
gtp_message_t gtp_message;
|
|
gtp_delete_bearer_response_t *rsp = >p_message.delete_bearer_response;
|
|
|
|
gtp_cause_t cause;
|
|
gtp_uli_t uli;
|
|
char uli_buf[GTP_MAX_ULI_LEN];
|
|
gtp_ue_timezone_t ue_timezone;
|
|
struct timeval now;
|
|
struct tm time_exp;
|
|
|
|
mme_ue_t *mme_ue = NULL;
|
|
|
|
ogs_assert(bearer);
|
|
mme_ue = bearer->mme_ue;
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_debug("[MME] Delete Bearer Response");
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
|
|
|
memset(>p_message, 0, sizeof(gtp_message_t));
|
|
|
|
/* Set Cause */
|
|
memset(&cause, 0, sizeof(cause));
|
|
cause.value = GTP_CAUSE_REQUEST_ACCEPTED;
|
|
rsp->cause.presence = 1;
|
|
rsp->cause.len = sizeof(cause);
|
|
rsp->cause.data = &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;
|
|
|
|
/* Bearer Context : Cause */
|
|
rsp->bearer_contexts.cause.presence = 1;
|
|
rsp->bearer_contexts.cause.len = sizeof(cause);
|
|
rsp->bearer_contexts.cause.data = &cause;
|
|
|
|
/* User Location Information(ULI) */
|
|
memset(&uli, 0, sizeof(gtp_uli_t));
|
|
uli.flags.e_cgi = 1;
|
|
uli.flags.tai = 1;
|
|
memcpy(&uli.tai.plmn_id, &mme_ue->tai.plmn_id, sizeof(uli.tai.plmn_id));
|
|
uli.tai.tac = mme_ue->tai.tac;
|
|
memcpy(&uli.e_cgi.plmn_id, &mme_ue->e_cgi.plmn_id,
|
|
sizeof(uli.e_cgi.plmn_id));
|
|
uli.e_cgi.cell_id = mme_ue->e_cgi.cell_id;
|
|
rsp->user_location_information.presence = 1;
|
|
gtp_build_uli(&rsp->user_location_information, &uli,
|
|
uli_buf, GTP_MAX_ULI_LEN);
|
|
|
|
/* UE Time Zone */
|
|
memset(&ue_timezone, 0, sizeof(ue_timezone));
|
|
ogs_gettimeofday(&now);
|
|
ogs_localtime(now.tv_sec, &time_exp);
|
|
if (time_exp.tm_gmtoff >= 0) {
|
|
ue_timezone.timezone = GTP_TIME_TO_BCD(time_exp.tm_gmtoff / 900);
|
|
} else {
|
|
ue_timezone.timezone = GTP_TIME_TO_BCD((-time_exp.tm_gmtoff) / 900);
|
|
ue_timezone.timezone |= 0x08;
|
|
}
|
|
ue_timezone.daylight_saving_time =
|
|
GTP_UE_TIME_ZONE_NO_ADJUSTMENT_FOR_DAYLIGHT_SAVING_TIME;
|
|
rsp->ue_time_zone.presence = 1;
|
|
rsp->ue_time_zone.data = &ue_timezone;
|
|
rsp->ue_time_zone.len = sizeof(ue_timezone);
|
|
|
|
gtp_message.h.type = type;
|
|
rv = gtp_build_msg(pkbuf, >p_message);
|
|
ogs_assert(rv == OGS_OK);
|
|
|
|
return OGS_OK;
|
|
}
|
|
|
|
int mme_s11_build_release_access_bearers_request(
|
|
ogs_pkbuf_t **pkbuf, uint8_t type)
|
|
{
|
|
int rv;
|
|
gtp_message_t gtp_message;
|
|
gtp_release_access_bearers_request_t *req =
|
|
>p_message.release_access_bearers_request;
|
|
|
|
ogs_debug("[MME] Release Access Bearers Request");
|
|
memset(>p_message, 0, sizeof(gtp_message_t));
|
|
|
|
req->originating_node.presence = 1;
|
|
req->originating_node.u8 = GTP_NODE_TYPE_MME;
|
|
|
|
gtp_message.h.type = type;
|
|
rv = gtp_build_msg(pkbuf, >p_message);
|
|
ogs_assert(rv == OGS_OK);
|
|
|
|
return OGS_OK;
|
|
}
|
|
|
|
int mme_s11_build_downlink_data_notification_ack(
|
|
ogs_pkbuf_t **pkbuf, uint8_t type)
|
|
{
|
|
int rv;
|
|
gtp_message_t gtp_message;
|
|
gtp_downlink_data_notification_acknowledge_t *ack =
|
|
>p_message.downlink_data_notification_acknowledge;
|
|
|
|
gtp_cause_t cause;
|
|
|
|
ogs_debug("[MME] Downlink Data Notification Ackknowledge");
|
|
|
|
memset(>p_message, 0, sizeof(gtp_message_t));
|
|
|
|
memset(&cause, 0, sizeof(cause));
|
|
cause.value = GTP_CAUSE_REQUEST_ACCEPTED;
|
|
|
|
ack->cause.presence = 1;
|
|
ack->cause.data = &cause;
|
|
ack->cause.len = sizeof(cause);
|
|
|
|
gtp_message.h.type = type;
|
|
rv = gtp_build_msg(pkbuf, >p_message);
|
|
ogs_assert(rv == OGS_OK);
|
|
|
|
return OGS_OK;
|
|
}
|
|
|
|
int mme_s11_build_create_indirect_data_forwarding_tunnel_request(
|
|
ogs_pkbuf_t **pkbuf, uint8_t type, mme_ue_t *mme_ue)
|
|
{
|
|
int rv;
|
|
int i;
|
|
|
|
mme_sess_t *sess = NULL;
|
|
mme_bearer_t *bearer = NULL;
|
|
|
|
gtp_message_t gtp_message;
|
|
gtp_create_indirect_data_forwarding_tunnel_request_t *req =
|
|
>p_message.create_indirect_data_forwarding_tunnel_request;
|
|
|
|
tlv_bearer_context_t *bearers[GTP_MAX_NUM_OF_INDIRECT_TUNNEL];
|
|
gtp_f_teid_t dl_teid[GTP_MAX_NUM_OF_INDIRECT_TUNNEL];
|
|
gtp_f_teid_t ul_teid[GTP_MAX_NUM_OF_INDIRECT_TUNNEL];
|
|
int len;
|
|
|
|
ogs_assert(mme_ue);
|
|
|
|
ogs_debug("[MME] Create Indirect Data Forwarding Tunnel Request");
|
|
ogs_debug(" MME_S11_TEID[%d] SGW_S11_TEID[%d]",
|
|
mme_ue->mme_s11_teid, mme_ue->sgw_s11_teid);
|
|
|
|
gtp_bearers_in_create_indirect_tunnel_request(&bearers, req);
|
|
memset(>p_message, 0, sizeof(gtp_message_t));
|
|
|
|
i = 0;
|
|
sess = mme_sess_first(mme_ue);
|
|
while (sess != NULL) {
|
|
bearer = mme_bearer_first(sess);
|
|
while (bearer != NULL) {
|
|
if (MME_HAVE_ENB_DL_INDIRECT_TUNNEL(bearer)) {
|
|
memset(&dl_teid[i], 0, sizeof(gtp_f_teid_t));
|
|
dl_teid[i].interface_type =
|
|
GTP_F_TEID_ENODEB_GTP_U_FOR_DL_DATA_FORWARDING;
|
|
dl_teid[i].teid = htonl(bearer->enb_dl_teid);
|
|
rv = gtp_ip_to_f_teid(&bearer->enb_dl_ip, &dl_teid[i], &len);
|
|
ogs_assert(rv == OGS_OK);
|
|
ogs_assert(bearers[i]);
|
|
bearers[i]->s1_u_enodeb_f_teid.presence = 1;
|
|
bearers[i]->s1_u_enodeb_f_teid.data = &dl_teid[i];
|
|
bearers[i]->s1_u_enodeb_f_teid.len = len;
|
|
}
|
|
|
|
if (MME_HAVE_ENB_UL_INDIRECT_TUNNEL(bearer)) {
|
|
memset(&ul_teid[i], 0, sizeof(gtp_f_teid_t));
|
|
ul_teid[i].interface_type =
|
|
GTP_F_TEID_ENODEB_GTP_U_FOR_UL_DATA_FORWARDING;
|
|
ul_teid[i].teid = htonl(bearer->enb_ul_teid);
|
|
rv = gtp_ip_to_f_teid(&bearer->enb_ul_ip, &ul_teid[i], &len);
|
|
ogs_assert(rv == OGS_OK);
|
|
ogs_assert(bearers[i]);
|
|
bearers[i]->s12_rnc_f_teid.presence = 1;
|
|
bearers[i]->s12_rnc_f_teid.data = &ul_teid[i];
|
|
bearers[i]->s12_rnc_f_teid.len = len;
|
|
}
|
|
|
|
if (MME_HAVE_ENB_DL_INDIRECT_TUNNEL(bearer) ||
|
|
MME_HAVE_ENB_UL_INDIRECT_TUNNEL(bearer)) {
|
|
bearers[i]->presence = 1;
|
|
bearers[i]->eps_bearer_id.presence = 1;
|
|
bearers[i]->eps_bearer_id.u8 = bearer->ebi;
|
|
i++;
|
|
}
|
|
|
|
bearer = mme_bearer_next(bearer);
|
|
}
|
|
sess = mme_sess_next(sess);
|
|
}
|
|
|
|
gtp_message.h.type = type;
|
|
rv = gtp_build_msg(pkbuf, >p_message);
|
|
ogs_assert(rv == OGS_OK);
|
|
|
|
return OGS_OK;
|
|
}
|