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/*
* Copyright (C) 2019-2022 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/>.
*/
#ifndef PCF_CONTEXT_H
#define PCF_CONTEXT_H
#include "ogs-app.h"
#include "ogs-crypt.h"
#include "ogs-sbi.h"
#include "ogs-dbi.h"
#include "pcf-sm.h"
#include "metrics.h"
#ifdef __cplusplus
extern "C" {
#endif
extern int __pcf_log_domain;
#undef OGS_LOG_DOMAIN
#define OGS_LOG_DOMAIN __pcf_log_domain
typedef struct pcf_context_s {
ogs_list_t pcf_ue_list;
ogs_hash_t *supi_hash;
ogs_hash_t *ipv4addr_hash;
ogs_hash_t *ipv6prefix_hash;
} pcf_context_t;
struct pcf_ue_s {
ogs_sbi_object_t sbi;
ogs_pool_id_t id;
ogs_fsm_t sm;
char *association_id;
char *supi;
char *notification_uri;
struct {
ogs_sbi_client_t *client;
} namf;
char *gpsi;
OpenAPI_access_type_e access_type;
char *pei;
ogs_guami_t guami;
OpenAPI_rat_type_e rat_type;
/* SBI Features */
uint64_t am_policy_control_features;
OpenAPI_policy_association_request_t *policy_association_request;
OpenAPI_ambr_t *subscribed_ue_ambr;
ogs_list_t sess_list;
};
struct pcf_sess_s {
ogs_sbi_object_t sbi;
ogs_pool_id_t id;
ogs_fsm_t sm;
char *sm_policy_id;
/* BSF sends the RESPONSE
* of [POST] /nbsf-management/v1/PcfBindings */
#define PCF_BINDING_ASSOCIATED(__sESS) \
((__sESS) && ((__sESS)->binding.id))
#define PCF_BINDING_CLEAR(__sESS) \
do { \
ogs_assert((__sESS)); \
if ((__sESS)->binding.resource_uri) \
ogs_free((__sESS)->binding.resource_uri); \
(__sESS)->binding.resource_uri = NULL; \
if ((__sESS)->binding.id) \
ogs_free((__sESS)->binding.id); \
(__sESS)->binding.id = NULL; \
} while(0)
#define PCF_BINDING_STORE(__sESS, __rESOURCE_URI, __iD) \
do { \
ogs_assert((__sESS)); \
ogs_assert((__rESOURCE_URI)); \
ogs_assert((__iD)); \
PCF_BINDING_CLEAR(__sESS); \
(__sESS)->binding.resource_uri = ogs_strdup(__rESOURCE_URI); \
ogs_assert((__sESS)->binding.resource_uri); \
(__sESS)->binding.id = ogs_strdup(__iD); \
ogs_assert((__sESS)->binding.id); \
} while(0)
struct {
char *resource_uri;
char *id;
ogs_sbi_client_t *client;
} binding;
uint8_t psi; /* PDU Session Identity */
uint8_t pdu_session_type;
/* DNN */
char *dnn;
char *full_dnn;
/* Serving PLMN ID & Home PLMN ID */
struct {
bool presence;
ogs_plmn_id_t plmn_id;
} serving, home;
char *notification_uri;
struct {
ogs_sbi_client_t *client;
} nsmf;
char *ipv4addr_string;
char *ipv6prefix_string;
OpenAPI_list_t *ipv4_frame_route_list;
OpenAPI_list_t *ipv6_frame_route_list;
uint32_t ipv4addr;
struct {
uint8_t len;
uint8_t addr6[OGS_IPV6_LEN];
} ipv6prefix;
ogs_s_nssai_t s_nssai;
/* SBI Features */
uint64_t smpolicycontrol_features;
uint64_t management_features;
uint64_t policyauthorization_features;
OpenAPI_ambr_t *subscribed_sess_ambr;
OpenAPI_subscribed_default_qos_t *subscribed_default_qos;
ogs_list_t app_list;
/* Related Context */
ogs_pool_id_t pcf_ue_id;
};
typedef struct pcf_app_s {
ogs_lnode_t lnode;
char *app_session_id;
char *notif_uri;
struct {
ogs_sbi_client_t *client;
} naf;
ogs_pcc_rule_t pcc_rule[OGS_MAX_NUM_OF_PCC_RULE];
int num_of_pcc_rule;
pcf_sess_t *sess;
} pcf_app_t;
void pcf_context_init(void);
void pcf_context_final(void);
pcf_context_t *pcf_self(void);
int pcf_context_parse_config(void);
pcf_ue_t *pcf_ue_add(char *supi);
void pcf_ue_remove(pcf_ue_t *pcf_ue);
void pcf_ue_remove_all(void);
pcf_ue_t *pcf_ue_find_by_supi(char *supi);
pcf_ue_t *pcf_ue_find_by_association_id(char *association_id);
pcf_sess_t *pcf_sess_add(pcf_ue_t *pcf_ue, uint8_t psi);
void pcf_sess_remove(pcf_sess_t *sess);
void pcf_sess_remove_all(pcf_ue_t *pcf_ue);
bool pcf_sess_set_ipv4addr(pcf_sess_t *sess, char *ipv4addr);
bool pcf_sess_set_ipv6prefix(pcf_sess_t *sess, char *ipv6prefix);
pcf_sess_t *pcf_sess_find(uint32_t index);
pcf_sess_t *pcf_sess_find_by_sm_policy_id(char *sm_policy_id);
pcf_sess_t *pcf_sess_find_by_psi(pcf_ue_t *pcf_ue, uint8_t psi);
pcf_sess_t *pcf_sess_find_by_dnn(pcf_ue_t *pcf_ue, char *dnn);
pcf_sess_t *pcf_sess_find_by_ipv4addr(char *ipv4addr_string);
pcf_sess_t *pcf_sess_find_by_ipv6addr(char *ipv6addr_string);
pcf_sess_t *pcf_sess_find_by_ipv6prefix(char *ipv6prefix_string);
int pcf_sessions_number_by_snssai_and_dnn(
pcf_ue_t *pcf_ue, ogs_s_nssai_t *s_nssai, char *dnn);
pcf_ue_t *pcf_ue_find_by_id(ogs_pool_id_t id);
pcf_sess_t *pcf_sess_find_by_id(ogs_pool_id_t id);
pcf_app_t *pcf_app_add(pcf_sess_t *sess);
int pcf_app_remove(pcf_app_t *app);
void pcf_app_remove_all(pcf_sess_t *sess);
pcf_app_t *pcf_app_find(uint32_t index);
pcf_app_t *pcf_app_find_by_app_session_id(char *app_session_id);
int pcf_instance_get_load(void);
int pcf_db_qos_data(char *supi,
ogs_plmn_id_t *plmn_id, ogs_s_nssai_t *s_nssai, char *dnn,
ogs_session_data_t *session_data);
#ifdef __cplusplus
}
#endif
#endif /* PCF_CONTEXT_H */
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