forked from acouzens/open5gs
69 lines
2.3 KiB
C
69 lines
2.3 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 "s11-build.h"
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ogs_pkbuf_t *sgwc_s11_build_downlink_data_notification(
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uint8_t cause_value, sgwc_bearer_t *bearer)
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{
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ogs_gtp_message_t message;
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ogs_gtp_downlink_data_notification_t *noti = NULL;
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ogs_gtp_cause_t cause;
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ogs_gtp_arp_t arp;
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sgwc_sess_t *sess = NULL;
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ogs_assert(bearer);
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sess = bearer->sess;
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ogs_assert(sess);
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/* Build downlink notification message */
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noti = &message.downlink_data_notification;
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memset(&message, 0, sizeof(ogs_gtp_message_t));
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/*
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* TS29.274 8.4 Cause Value
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*
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* 0 : Reserved. Shall not be sent and
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* if received the Cause shall be treated as an invalid IE
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*/
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if (cause_value != OGS_GTP_CAUSE_UNDEFINED_VALUE) {
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memset(&cause, 0, sizeof(cause));
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cause.value = cause_value;
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noti->cause.presence = 1;
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noti->cause.len = sizeof(cause);
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noti->cause.data = &cause;
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}
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noti->eps_bearer_id.presence = 1;
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noti->eps_bearer_id.u8 = bearer->ebi;
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memset(&arp, 0, sizeof(arp));
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arp.pre_emption_vulnerability =
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sess->session.qos.arp.pre_emption_vulnerability;
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arp.priority_level = sess->session.qos.arp.priority_level;
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arp.pre_emption_capability = sess->session.qos.arp.pre_emption_capability;
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noti->allocation_retention_priority.presence = 1;
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noti->allocation_retention_priority.data = &arp;
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noti->allocation_retention_priority.len = sizeof(arp);
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message.h.type = OGS_GTP_DOWNLINK_DATA_NOTIFICATION_TYPE;
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return ogs_gtp_build_msg(&message);
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}
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