2021-05-29 06:56:12 +00:00
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/*
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* Copyright (C) 2019,2020 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 "sbi-path.h"
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#include "nbsf-handler.h"
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bool pcf_nbsf_management_handle_register(
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pcf_sess_t *sess, ogs_sbi_stream_t *stream, ogs_sbi_message_t *recvmsg)
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{
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int i, j, rv, status = 0;
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char *strerror = NULL;
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pcf_ue_t *pcf_ue = NULL;
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ogs_sbi_server_t *server = NULL;
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ogs_sbi_message_t sendmsg;
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ogs_sbi_header_t header;
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ogs_sbi_response_t *response = NULL;
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ogs_sbi_message_t message;
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ogs_session_data_t session_data;
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ogs_session_t *session = NULL;
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OpenAPI_sm_policy_decision_t SmPolicyDecision;
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OpenAPI_lnode_t *node = NULL, *node2 = NULL;
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OpenAPI_list_t *SessRuleList = NULL;
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OpenAPI_map_t *SessRuleMap = NULL;
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OpenAPI_session_rule_t *SessionRule = NULL;
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OpenAPI_ambr_t AuthSessAmbr;
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OpenAPI_authorized_default_qos_t AuthDefQos;
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OpenAPI_list_t *PccRuleList = NULL;
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OpenAPI_map_t *PccRuleMap = NULL;
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OpenAPI_pcc_rule_t *PccRule = NULL;
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OpenAPI_flow_information_t *FlowInformation = NULL;
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OpenAPI_list_t *QosDecisionList = NULL;
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OpenAPI_map_t *QosDecisionMap = NULL;
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OpenAPI_qos_data_t *QosData = NULL;
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OpenAPI_list_t *PolicyCtrlReqTriggers = NULL;
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ogs_assert(sess);
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pcf_ue = sess->pcf_ue;
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ogs_assert(pcf_ue);
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ogs_assert(stream);
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server = ogs_sbi_server_from_stream(stream);
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ogs_assert(server);
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ogs_assert(recvmsg);
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memset(&session_data, 0, sizeof(ogs_session_data_t));
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ogs_assert(pcf_ue->supi);
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ogs_assert(sess->dnn);
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if (!recvmsg->http.location) {
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strerror = ogs_msprintf("[%s:%d] No http.location",
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pcf_ue->supi, sess->psi);
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status = OGS_SBI_HTTP_STATUS_BAD_REQUEST;
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goto cleanup;
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}
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if (!recvmsg->PcfBinding) {
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strerror = ogs_msprintf("[%s:%d] No PcfBinding",
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pcf_ue->supi, sess->psi);
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status = OGS_SBI_HTTP_STATUS_BAD_REQUEST;
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goto cleanup;
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}
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memset(&header, 0, sizeof(header));
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header.uri = recvmsg->http.location;
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rv = ogs_sbi_parse_header(&message, &header);
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if (rv != OGS_OK) {
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strerror = ogs_msprintf("[%s:%d] Cannot parse http.location [%s]",
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pcf_ue->supi, sess->psi, recvmsg->http.location);
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goto cleanup;
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}
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if (!message.h.resource.component[1]) {
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strerror = ogs_msprintf("[%s:%d] No Binding ID [%s]",
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pcf_ue->supi, sess->psi, recvmsg->http.location);
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ogs_sbi_header_free(&header);
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goto cleanup;
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}
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if (sess->binding_id)
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ogs_free(sess->binding_id);
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sess->binding_id = ogs_strdup(message.h.resource.component[1]);
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2021-06-06 13:35:46 +00:00
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ogs_assert(sess->binding_id);
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2021-05-29 06:56:12 +00:00
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ogs_sbi_header_free(&header);
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rv = ogs_dbi_session_data(
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pcf_ue->supi, &sess->s_nssai, sess->dnn, &session_data);
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if (rv != OGS_OK) {
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strerror = ogs_msprintf("[%s:%d] Cannot find SUPI in DB",
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pcf_ue->supi, sess->psi);
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status = OGS_SBI_HTTP_STATUS_NOT_FOUND;
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goto cleanup;
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}
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session = &session_data.session;
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if (!session->qos.index) {
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strerror = ogs_msprintf("[%s:%d] No 5QI", pcf_ue->supi, sess->psi);
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status = OGS_SBI_HTTP_STATUS_BAD_REQUEST;
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goto cleanup;
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}
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if (!session->qos.arp.priority_level) {
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strerror = ogs_msprintf("[%s:%d] No Priority Level",
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pcf_ue->supi, sess->psi);
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status = OGS_SBI_HTTP_STATUS_BAD_REQUEST;
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goto cleanup;
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}
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if (!session->ambr.uplink && !session->ambr.downlink) {
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strerror = ogs_msprintf("[%s:%d] No Session-AMBR",
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pcf_ue->supi, sess->psi);
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status = OGS_SBI_HTTP_STATUS_BAD_REQUEST;
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goto cleanup;
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}
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memset(&SmPolicyDecision, 0, sizeof(SmPolicyDecision));
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PolicyCtrlReqTriggers = OpenAPI_list_create();
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ogs_assert(PolicyCtrlReqTriggers);
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/**************************************************************
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* Session Rule
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*************************************************************/
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SessRuleList = OpenAPI_list_create();
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ogs_assert(SessRuleList);
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SessionRule = ogs_calloc(1, sizeof(*SessionRule));
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ogs_assert(SessionRule);
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/* Only 1 SessionRule is used */
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SessionRule->sess_rule_id = (char *)"1";
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if (OGS_SBI_FEATURES_IS_SET(sess->smpolicycontrol_features,
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OGS_SBI_NPCF_SMPOLICYCONTROL_DN_AUTHORIZATION)) {
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if (sess->subscribed_sess_ambr) {
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ogs_bitrate_t subscribed_sess_ambr;
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subscribed_sess_ambr.uplink = ogs_sbi_bitrate_from_string(
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sess->subscribed_sess_ambr->uplink);
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subscribed_sess_ambr.downlink = ogs_sbi_bitrate_from_string(
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sess->subscribed_sess_ambr->downlink);
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if (((subscribed_sess_ambr.uplink / 1024) !=
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(session->ambr.uplink / 1024)) ||
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((subscribed_sess_ambr.downlink / 1024) !=
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(session->ambr.downlink / 1024))) {
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OpenAPI_list_add(PolicyCtrlReqTriggers,
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(void *)OpenAPI_policy_control_request_trigger_SE_AMBR_CH);
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}
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memset(&AuthSessAmbr, 0, sizeof(AuthSessAmbr));
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AuthSessAmbr.uplink = ogs_sbi_bitrate_to_string(
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session->ambr.uplink, OGS_SBI_BITRATE_KBPS);
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AuthSessAmbr.downlink = ogs_sbi_bitrate_to_string(
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session->ambr.downlink, OGS_SBI_BITRATE_KBPS);
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SessionRule->auth_sess_ambr = &AuthSessAmbr;
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}
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}
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if (sess->subscribed_default_qos) {
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bool triggered = false;
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memset(&AuthDefQos, 0, sizeof(AuthDefQos));
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AuthDefQos.arp = ogs_calloc(1, sizeof(OpenAPI_arp_t));
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ogs_assert(AuthDefQos.arp);
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AuthDefQos._5qi = session->qos.index;
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AuthDefQos.priority_level = session->qos.arp.priority_level;
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if (session->qos.arp.pre_emption_capability ==
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OGS_5GC_PRE_EMPTION_ENABLED)
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AuthDefQos.arp->preempt_cap =
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OpenAPI_preemption_capability_MAY_PREEMPT;
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else if (session->qos.arp.pre_emption_capability ==
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OGS_5GC_PRE_EMPTION_DISABLED)
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AuthDefQos.arp->preempt_cap =
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OpenAPI_preemption_capability_NOT_PREEMPT;
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ogs_assert(AuthDefQos.arp->preempt_cap);
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if (session->qos.arp.pre_emption_vulnerability ==
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OGS_5GC_PRE_EMPTION_ENABLED)
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AuthDefQos.arp->preempt_vuln =
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OpenAPI_preemption_vulnerability_PREEMPTABLE;
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else if (session->qos.arp.pre_emption_vulnerability ==
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OGS_5GC_PRE_EMPTION_DISABLED)
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AuthDefQos.arp->preempt_vuln =
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OpenAPI_preemption_vulnerability_NOT_PREEMPTABLE;
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ogs_assert(AuthDefQos.arp->preempt_vuln);
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AuthDefQos.arp->priority_level = session->qos.arp.priority_level;
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SessionRule->auth_def_qos = &AuthDefQos;
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if (sess->subscribed_default_qos->_5qi != AuthDefQos._5qi)
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triggered = true;
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if (sess->subscribed_default_qos->priority_level !=
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AuthDefQos.priority_level)
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triggered = true;
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if (sess->subscribed_default_qos->arp) {
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if (sess->subscribed_default_qos->arp->priority_level !=
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AuthDefQos.arp->priority_level)
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triggered = true;
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if (sess->subscribed_default_qos->arp->preempt_cap !=
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AuthDefQos.arp->preempt_cap)
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triggered = true;
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if (sess->subscribed_default_qos->arp->preempt_vuln !=
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AuthDefQos.arp->preempt_vuln)
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triggered = true;
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}
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if (triggered)
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OpenAPI_list_add(PolicyCtrlReqTriggers,
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(void *)OpenAPI_policy_control_request_trigger_DEF_QOS_CH);
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}
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SessRuleMap = OpenAPI_map_create(
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SessionRule->sess_rule_id, SessionRule);
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ogs_assert(SessRuleMap);
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OpenAPI_list_add(SessRuleList, SessRuleMap);
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if (SessRuleList->count)
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SmPolicyDecision.sess_rules = SessRuleList;
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/**************************************************************
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* PCC Rule & QoS Decision
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*************************************************************/
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PccRuleList = OpenAPI_list_create();
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ogs_assert(PccRuleList);
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QosDecisionList = OpenAPI_list_create();
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ogs_assert(QosDecisionList);
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for (i = 0; i < session_data.num_of_pcc_rule; i++) {
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OpenAPI_list_t *FlowInformationList = NULL;
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ogs_pcc_rule_t *pcc_rule = &session_data.pcc_rule[i];
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ogs_assert(pcc_rule);
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PccRule = ogs_calloc(1, sizeof(*PccRule));
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ogs_assert(PccRule);
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QosData = ogs_calloc(1, sizeof(*QosData));
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ogs_assert(QosData);
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/*
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* At this point, only 1 QosData is used for PccRule.
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* Therefore, QoS ID uses the same value as PCC Rule ID.
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*/
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PccRule->pcc_rule_id = pcc_rule->id;
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QosData->qos_id = pcc_rule->id;
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PccRule->ref_qos_data = OpenAPI_list_create();
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ogs_assert(PccRule->ref_qos_data);
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OpenAPI_list_add(PccRule->ref_qos_data, QosData->qos_id);
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PccRule->precedence = pcc_rule->precedence;
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FlowInformationList = OpenAPI_list_create();
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ogs_assert(FlowInformationList);
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for (j = 0; j < pcc_rule->num_of_flow; j++) {
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ogs_flow_t *flow = &pcc_rule->flow[j];
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ogs_assert(flow);
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FlowInformation = ogs_calloc(1, sizeof(*FlowInformation));
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ogs_assert(FlowInformation);
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if (flow->direction == OGS_FLOW_UPLINK_ONLY)
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FlowInformation->flow_direction =
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OpenAPI_flow_direction_UPLINK;
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else if (flow->direction == OGS_FLOW_DOWNLINK_ONLY)
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FlowInformation->flow_direction =
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OpenAPI_flow_direction_DOWNLINK;
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else {
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ogs_fatal("Unsupported direction [%d]", flow->direction);
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ogs_assert_if_reached();
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}
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ogs_assert(flow->description);
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FlowInformation->flow_description = flow->description;
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OpenAPI_list_add(FlowInformationList, FlowInformation);
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}
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if (FlowInformationList->count)
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PccRule->flow_infos = FlowInformationList;
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else
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OpenAPI_list_free(FlowInformationList);
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PccRuleMap = OpenAPI_map_create(PccRule->pcc_rule_id, PccRule);
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ogs_assert(PccRuleMap);
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OpenAPI_list_add(PccRuleList, PccRuleMap);
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QosData->_5qi = pcc_rule->qos.index;
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QosData->priority_level = pcc_rule->qos.arp.priority_level;
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QosData->arp = ogs_calloc(1, sizeof(OpenAPI_arp_t));
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ogs_assert(QosData->arp);
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if (pcc_rule->qos.arp.pre_emption_capability ==
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OGS_5GC_PRE_EMPTION_ENABLED)
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QosData->arp->preempt_cap =
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OpenAPI_preemption_capability_MAY_PREEMPT;
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else if (pcc_rule->qos.arp.pre_emption_capability ==
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OGS_5GC_PRE_EMPTION_DISABLED)
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QosData->arp->preempt_cap =
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OpenAPI_preemption_capability_NOT_PREEMPT;
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ogs_assert(pcc_rule->qos.arp.pre_emption_capability);
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if (pcc_rule->qos.arp.pre_emption_vulnerability ==
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|
OGS_5GC_PRE_EMPTION_ENABLED)
|
|
|
|
QosData->arp->preempt_vuln =
|
|
|
|
OpenAPI_preemption_vulnerability_PREEMPTABLE;
|
|
|
|
else if (pcc_rule->qos.arp.pre_emption_vulnerability ==
|
|
|
|
OGS_5GC_PRE_EMPTION_DISABLED)
|
|
|
|
QosData->arp->preempt_vuln =
|
|
|
|
OpenAPI_preemption_vulnerability_NOT_PREEMPTABLE;
|
|
|
|
ogs_assert(pcc_rule->qos.arp.pre_emption_vulnerability);
|
|
|
|
QosData->arp->priority_level = pcc_rule->qos.arp.priority_level;
|
|
|
|
|
|
|
|
if (pcc_rule->qos.mbr.uplink)
|
|
|
|
QosData->maxbr_ul = ogs_sbi_bitrate_to_string(
|
|
|
|
pcc_rule->qos.mbr.uplink, OGS_SBI_BITRATE_KBPS);
|
|
|
|
if (pcc_rule->qos.mbr.downlink)
|
|
|
|
QosData->maxbr_dl = ogs_sbi_bitrate_to_string(
|
|
|
|
pcc_rule->qos.mbr.downlink, OGS_SBI_BITRATE_KBPS);
|
|
|
|
|
|
|
|
if (pcc_rule->qos.gbr.uplink)
|
|
|
|
QosData->gbr_ul = ogs_sbi_bitrate_to_string(
|
|
|
|
pcc_rule->qos.gbr.uplink, OGS_SBI_BITRATE_KBPS);
|
|
|
|
if (pcc_rule->qos.gbr.downlink)
|
|
|
|
QosData->gbr_dl = ogs_sbi_bitrate_to_string(
|
|
|
|
pcc_rule->qos.gbr.downlink, OGS_SBI_BITRATE_KBPS);
|
|
|
|
|
|
|
|
QosDecisionMap = OpenAPI_map_create(QosData->qos_id, QosData);
|
|
|
|
ogs_assert(QosDecisionMap);
|
|
|
|
|
|
|
|
OpenAPI_list_add(QosDecisionList, QosDecisionMap);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (PccRuleList->count)
|
|
|
|
SmPolicyDecision.pcc_rules = PccRuleList;
|
|
|
|
|
|
|
|
if (QosDecisionList->count)
|
|
|
|
SmPolicyDecision.qos_decs = QosDecisionList;
|
|
|
|
|
|
|
|
/* Policy Control Request Triggers */
|
|
|
|
if (PolicyCtrlReqTriggers->count)
|
|
|
|
SmPolicyDecision.policy_ctrl_req_triggers = PolicyCtrlReqTriggers;
|
|
|
|
|
|
|
|
/* Supported Features */
|
|
|
|
if (sess->smpolicycontrol_features) {
|
|
|
|
SmPolicyDecision.supp_feat =
|
|
|
|
ogs_uint64_to_string(sess->smpolicycontrol_features);
|
2021-06-06 13:35:46 +00:00
|
|
|
ogs_assert(SmPolicyDecision.supp_feat);
|
2021-05-29 06:56:12 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
memset(&header, 0, sizeof(header));
|
|
|
|
header.service.name = (char *)OGS_SBI_SERVICE_NAME_NPCF_SMPOLICYCONTROL;
|
|
|
|
header.api.version = (char *)OGS_SBI_API_V1;
|
|
|
|
header.resource.component[0] = (char *)OGS_SBI_RESOURCE_NAME_POLICIES;
|
|
|
|
header.resource.component[1] = sess->sm_policy_id;
|
|
|
|
|
|
|
|
memset(&sendmsg, 0, sizeof(sendmsg));
|
|
|
|
sendmsg.SmPolicyDecision = &SmPolicyDecision;
|
|
|
|
sendmsg.http.location = ogs_sbi_server_uri(server, &header);
|
|
|
|
|
|
|
|
response = ogs_sbi_build_response(
|
|
|
|
&sendmsg, OGS_SBI_HTTP_STATUS_CREATED);
|
|
|
|
ogs_assert(response);
|
2021-06-06 13:35:46 +00:00
|
|
|
ogs_assert(true == ogs_sbi_server_send_response(stream, response));
|
2021-05-29 06:56:12 +00:00
|
|
|
|
|
|
|
ogs_free(sendmsg.http.location);
|
|
|
|
|
|
|
|
OpenAPI_list_for_each(SessRuleList, node) {
|
|
|
|
SessRuleMap = node->data;
|
|
|
|
if (SessRuleMap) {
|
|
|
|
SessionRule = SessRuleMap->value;
|
|
|
|
if (SessionRule) {
|
|
|
|
if (SessionRule->auth_sess_ambr) {
|
|
|
|
if (SessionRule->auth_sess_ambr->uplink)
|
|
|
|
ogs_free(SessionRule->auth_sess_ambr->uplink);
|
|
|
|
if (SessionRule->auth_sess_ambr->downlink)
|
|
|
|
ogs_free(SessionRule->auth_sess_ambr->downlink);
|
|
|
|
}
|
|
|
|
if (SessionRule->auth_def_qos) {
|
|
|
|
ogs_free(SessionRule->auth_def_qos->arp);
|
|
|
|
|
|
|
|
}
|
|
|
|
ogs_free(SessionRule);
|
|
|
|
}
|
|
|
|
ogs_free(SessRuleMap);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
OpenAPI_list_free(SessRuleList);
|
|
|
|
|
|
|
|
OpenAPI_list_for_each(PccRuleList, node) {
|
|
|
|
PccRuleMap = node->data;
|
|
|
|
if (PccRuleMap) {
|
|
|
|
PccRule = PccRuleMap->value;
|
|
|
|
if (PccRule) {
|
|
|
|
if (PccRule->ref_qos_data)
|
|
|
|
OpenAPI_list_free(PccRule->ref_qos_data);
|
|
|
|
if (PccRule->flow_infos) {
|
|
|
|
OpenAPI_list_for_each(PccRule->flow_infos, node2) {
|
|
|
|
FlowInformation = node2->data;
|
|
|
|
if (FlowInformation) ogs_free(FlowInformation);
|
|
|
|
}
|
|
|
|
OpenAPI_list_free(PccRule->flow_infos);
|
|
|
|
}
|
|
|
|
ogs_free(PccRule);
|
|
|
|
}
|
|
|
|
ogs_free(PccRuleMap);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
OpenAPI_list_free(PccRuleList);
|
|
|
|
|
|
|
|
OpenAPI_list_for_each(QosDecisionList, node) {
|
|
|
|
QosDecisionMap = node->data;
|
|
|
|
if (QosDecisionMap) {
|
|
|
|
QosData = QosDecisionMap->value;
|
|
|
|
if (QosData) {
|
|
|
|
if (QosData->arp) ogs_free(QosData->arp);
|
|
|
|
if (QosData->maxbr_ul) ogs_free(QosData->maxbr_ul);
|
|
|
|
if (QosData->maxbr_dl) ogs_free(QosData->maxbr_dl);
|
|
|
|
if (QosData->gbr_ul) ogs_free(QosData->gbr_ul);
|
|
|
|
if (QosData->gbr_dl) ogs_free(QosData->gbr_dl);
|
|
|
|
|
|
|
|
ogs_free(QosData);
|
|
|
|
}
|
|
|
|
ogs_free(QosDecisionMap);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
OpenAPI_list_free(QosDecisionList);
|
|
|
|
|
|
|
|
OpenAPI_list_free(PolicyCtrlReqTriggers);
|
|
|
|
|
|
|
|
if (SmPolicyDecision.supp_feat)
|
|
|
|
ogs_free(SmPolicyDecision.supp_feat);
|
|
|
|
|
|
|
|
ogs_session_data_free(&session_data);
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
cleanup:
|
|
|
|
ogs_assert(strerror);
|
|
|
|
ogs_assert(status);
|
|
|
|
ogs_error("%s", strerror);
|
2021-06-06 13:35:46 +00:00
|
|
|
ogs_assert(true ==
|
|
|
|
ogs_sbi_server_send_error(stream, status, recvmsg, strerror, NULL));
|
2021-05-29 06:56:12 +00:00
|
|
|
ogs_free(strerror);
|
|
|
|
|
|
|
|
ogs_session_data_free(&session_data);
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool pcf_nbsf_management_handle_de_register(
|
|
|
|
pcf_sess_t *sess, ogs_sbi_stream_t *stream, ogs_sbi_message_t *recvmsg)
|
|
|
|
{
|
|
|
|
ogs_sbi_message_t sendmsg;
|
|
|
|
ogs_sbi_response_t *response = NULL;
|
|
|
|
|
|
|
|
ogs_assert(sess);
|
|
|
|
ogs_assert(stream);
|
|
|
|
|
|
|
|
memset(&sendmsg, 0, sizeof(sendmsg));
|
|
|
|
|
|
|
|
response = ogs_sbi_build_response(
|
|
|
|
&sendmsg, OGS_SBI_HTTP_STATUS_NO_CONTENT);
|
|
|
|
ogs_assert(response);
|
2021-06-06 13:35:46 +00:00
|
|
|
ogs_assert(true == ogs_sbi_server_send_response(stream, response));
|
2021-05-29 06:56:12 +00:00
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|