forked from acouzens/open5gs
145 lines
4.2 KiB
C
145 lines
4.2 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 "context.h"
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#include "n4-build.h"
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ogs_pkbuf_t *upf_n4_build_session_establishment_response(uint8_t type,
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upf_sess_t *sess, ogs_pfcp_pdr_t *created_pdr[], int num_of_created_pdr)
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{
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ogs_pfcp_message_t *pfcp_message = NULL;
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ogs_pfcp_session_establishment_response_t *rsp = NULL;
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ogs_pkbuf_t *pkbuf = NULL;
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int i = 0, j = 0;
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ogs_pfcp_node_id_t node_id;
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ogs_pfcp_f_seid_t f_seid;
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int len = 0;
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ogs_debug("Session Establishment Response");
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pfcp_message = ogs_calloc(1, sizeof(*pfcp_message));
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if (!pfcp_message) {
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ogs_error("ogs_calloc() failed");
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return NULL;
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}
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rsp = &pfcp_message->pfcp_session_establishment_response;
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/* Node ID */
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ogs_pfcp_sockaddr_to_node_id(&node_id, &len);
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rsp->node_id.presence = 1;
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rsp->node_id.data = &node_id;
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rsp->node_id.len = len;
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/* Cause */
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rsp->cause.presence = 1;
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rsp->cause.u8 = OGS_PFCP_CAUSE_REQUEST_ACCEPTED;
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/* F-SEID */
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ogs_pfcp_sockaddr_to_f_seid(&f_seid, &len);
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f_seid.seid = htobe64(sess->upf_n4_seid);
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rsp->up_f_seid.presence = 1;
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rsp->up_f_seid.data = &f_seid;
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rsp->up_f_seid.len = len;
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ogs_pfcp_pdrbuf_init();
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/* Created PDR */
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for (i = 0, j = 0; i < num_of_created_pdr; i++) {
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bool pdr_presence = ogs_pfcp_build_created_pdr(
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&rsp->created_pdr[j], i, created_pdr[i]);
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if (pdr_presence == true) j++;
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}
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pfcp_message->h.type = type;
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pkbuf = ogs_pfcp_build_msg(pfcp_message);
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ogs_expect(pkbuf);
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ogs_pfcp_pdrbuf_clear();
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ogs_free(pfcp_message);
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return pkbuf;
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}
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ogs_pkbuf_t *upf_n4_build_session_modification_response(uint8_t type,
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upf_sess_t *sess, ogs_pfcp_pdr_t *created_pdr[], int num_of_created_pdr)
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{
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ogs_pfcp_message_t *pfcp_message = NULL;
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ogs_pfcp_session_modification_response_t *rsp = NULL;
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ogs_pkbuf_t *pkbuf = NULL;
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int i = 0, j = 0;
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ogs_debug("Session Modification Response");
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pfcp_message = ogs_calloc(1, sizeof(*pfcp_message));
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if (!pfcp_message) {
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ogs_error("ogs_calloc() failed");
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return NULL;
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}
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rsp = &pfcp_message->pfcp_session_modification_response;
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/* Cause */
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rsp->cause.presence = 1;
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rsp->cause.u8 = OGS_PFCP_CAUSE_REQUEST_ACCEPTED;
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ogs_pfcp_pdrbuf_init();
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/* Created PDR */
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for (i = 0, j = 0; i < num_of_created_pdr; i++) {
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bool pdr_presence = ogs_pfcp_build_created_pdr(
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&rsp->created_pdr[j], i, created_pdr[i]);
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if (pdr_presence == true) j++;
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}
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pfcp_message->h.type = type;
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pkbuf = ogs_pfcp_build_msg(pfcp_message);
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ogs_expect(pkbuf);
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ogs_pfcp_pdrbuf_clear();
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ogs_free(pfcp_message);
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return pkbuf;
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}
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ogs_pkbuf_t *upf_n4_build_session_deletion_response(uint8_t type,
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upf_sess_t *sess)
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{
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ogs_pfcp_urr_t *urr = NULL;
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ogs_pfcp_user_plane_report_t report;
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size_t num_of_reports = 0;
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ogs_debug("Session Deletion Response");
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memset(&report, 0, sizeof(report));
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ogs_list_for_each(&sess->pfcp.urr_list, urr) {
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ogs_assert(num_of_reports < OGS_ARRAY_SIZE(report.usage_report));
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upf_sess_urr_acc_fill_usage_report(sess, urr, &report, num_of_reports);
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report.usage_report[num_of_reports].rep_trigger.termination_report = 1;
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num_of_reports++;
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upf_sess_urr_acc_snapshot(sess, urr);
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}
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report.num_of_usage_report = num_of_reports;
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return ogs_pfcp_build_session_deletion_response(type, OGS_PFCP_CAUSE_REQUEST_ACCEPTED,
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&report);
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}
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