200 lines
6.0 KiB
C
200 lines
6.0 KiB
C
/*
|
|
* Copyright (C) 2019 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 SGWC_CONTEXT_H
|
|
#define SGWC_CONTEXT_H
|
|
|
|
#include "ogs-app.h"
|
|
#include "ogs-gtp.h"
|
|
#include "ogs-pfcp.h"
|
|
|
|
#include "timer.h"
|
|
#include "sgwc-sm.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
extern int __sgwc_log_domain;
|
|
|
|
#undef OGS_LOG_DOMAIN
|
|
#define OGS_LOG_DOMAIN __sgwc_log_domain
|
|
|
|
typedef struct sgwc_tunnel_s sgwc_tunnel_t;
|
|
|
|
typedef struct sgwc_context_s {
|
|
ogs_list_t mme_s11_list; /* MME GTPC Node List */
|
|
ogs_list_t pgw_s5c_list; /* PGW GTPC Node List */
|
|
|
|
ogs_hash_t *imsi_ue_hash; /* hash table (IMSI : SGW_UE) */
|
|
|
|
ogs_list_t sgw_ue_list; /* SGW_UE List */
|
|
} sgwc_context_t;
|
|
|
|
typedef struct sgwc_ue_s {
|
|
ogs_lnode_t lnode;
|
|
|
|
uint32_t sgw_s11_teid; /* SGW-S11-TEID is derived from INDEX */
|
|
uint32_t mme_s11_teid; /* MME-S11-TEID is received from MME */
|
|
|
|
/* UE identity */
|
|
uint8_t imsi[OGS_MAX_IMSI_LEN];
|
|
int imsi_len;
|
|
char imsi_bcd[OGS_MAX_IMSI_BCD_LEN+1];
|
|
|
|
/* User-Location-Info */
|
|
bool uli_presence;
|
|
ogs_eps_tai_t e_tai;
|
|
ogs_e_cgi_t e_cgi;
|
|
|
|
ogs_list_t sess_list;
|
|
|
|
ogs_gtp_node_t *gnode;
|
|
} sgwc_ue_t;
|
|
|
|
#define SGWC_SESS(pfcp_sess) ogs_container_of(pfcp_sess, sgwc_sess_t, pfcp)
|
|
typedef struct sgwc_sess_s {
|
|
ogs_lnode_t lnode; /* A node of list_t */
|
|
uint32_t index; /**< An index of this node */
|
|
|
|
ogs_pfcp_sess_t pfcp; /* PFCP session context */
|
|
|
|
uint32_t sgw_s5c_teid; /* SGW-S5C-TEID is derived from INDEX */
|
|
uint32_t pgw_s5c_teid; /* PGW-S5C-TEID is received from PGW */
|
|
|
|
uint64_t sgwc_sxa_seid; /* SGW-C SEID is dervied from INDEX */
|
|
uint64_t sgwu_sxa_seid; /* SGW-U SEID is received from Peer */
|
|
|
|
/*
|
|
* PFCP modification request is set to FALSE
|
|
* PFCP modifitation response is set to TRUE
|
|
*
|
|
* For example, when SGW-C is received Release Access Bearers Request,
|
|
* it is used to check if all sessions are deactivated.
|
|
*/
|
|
struct {
|
|
bool release_access_bearers;
|
|
bool create_indirect_tunnel;
|
|
bool delete_indirect_tunnel;
|
|
} state;
|
|
|
|
/* APN Configuration */
|
|
ogs_session_t session;
|
|
|
|
ogs_list_t bearer_list;
|
|
|
|
/* Related Context */
|
|
ogs_gtp_node_t *gnode;
|
|
ogs_pfcp_node_t *pfcp_node;
|
|
|
|
sgwc_ue_t *sgwc_ue;
|
|
} sgwc_sess_t;
|
|
|
|
typedef struct sgwc_bearer_s {
|
|
ogs_lnode_t lnode;
|
|
|
|
uint8_t ebi;
|
|
|
|
ogs_list_t tunnel_list;
|
|
sgwc_sess_t *sess;
|
|
sgwc_ue_t *sgwc_ue;
|
|
} sgwc_bearer_t;
|
|
|
|
typedef struct sgwc_tunnel_s {
|
|
ogs_lnode_t lnode;
|
|
uint32_t index; /**< An index of this node */
|
|
|
|
uint8_t interface_type;
|
|
|
|
ogs_pfcp_pdr_t *pdr;
|
|
ogs_pfcp_far_t *far;
|
|
|
|
uint32_t local_teid;
|
|
ogs_sockaddr_t *local_addr;
|
|
ogs_sockaddr_t *local_addr6;
|
|
|
|
uint32_t remote_teid;
|
|
ogs_ip_t remote_ip;
|
|
|
|
/* Related Context */
|
|
sgwc_bearer_t *bearer;
|
|
ogs_gtp_node_t *gnode;
|
|
} sgwc_tunnel_t;
|
|
|
|
void sgwc_context_init(void);
|
|
void sgwc_context_final(void);
|
|
sgwc_context_t *sgwc_self(void);
|
|
|
|
int sgwc_context_parse_config(void);
|
|
|
|
sgwc_ue_t *sgwc_ue_add_by_message(ogs_gtp2_message_t *message);
|
|
sgwc_ue_t *sgwc_ue_find_by_imsi(uint8_t *imsi, int imsi_len);
|
|
sgwc_ue_t *sgwc_ue_find_by_imsi_bcd(char *imsi_bcd);
|
|
sgwc_ue_t *sgwc_ue_find_by_teid(uint32_t teid);
|
|
|
|
sgwc_ue_t *sgwc_ue_add(uint8_t *imsi, int imsi_len);
|
|
int sgwc_ue_remove(sgwc_ue_t *sgwc_ue);
|
|
void sgwc_ue_remove_all(void);
|
|
|
|
sgwc_sess_t *sgwc_sess_add(sgwc_ue_t *sgwc_ue, char *apn);
|
|
|
|
void sgwc_sess_select_sgwu(sgwc_sess_t *sess);
|
|
|
|
int sgwc_sess_remove(sgwc_sess_t *sess);
|
|
void sgwc_sess_remove_all(sgwc_ue_t *sgwc_ue);
|
|
|
|
sgwc_sess_t *sgwc_sess_find(uint32_t index);
|
|
sgwc_sess_t *sgwc_sess_find_by_teid(uint32_t teid);
|
|
sgwc_sess_t *sgwc_sess_find_by_seid(uint64_t seid);
|
|
|
|
sgwc_sess_t *sgwc_sess_find_by_apn(sgwc_ue_t *sgwc_ue, char *apn);
|
|
sgwc_sess_t *sgwc_sess_find_by_ebi(sgwc_ue_t *sgwc_ue, uint8_t ebi);
|
|
sgwc_sess_t *sgwc_sess_cycle(sgwc_sess_t *sess);
|
|
|
|
sgwc_bearer_t *sgwc_bearer_add(sgwc_sess_t *sess);
|
|
int sgwc_bearer_remove(sgwc_bearer_t *bearer);
|
|
void sgwc_bearer_remove_all(sgwc_sess_t *sess);
|
|
sgwc_bearer_t *sgwc_bearer_find_by_sess_ebi(
|
|
sgwc_sess_t *sess, uint8_t ebi);
|
|
sgwc_bearer_t *sgwc_bearer_find_by_ue_ebi(
|
|
sgwc_ue_t *sgwc_ue, uint8_t ebi);
|
|
sgwc_bearer_t *sgwc_bearer_find_by_error_indication_report(
|
|
sgwc_sess_t *sess,
|
|
ogs_pfcp_tlv_error_indication_report_t *error_indication_report);
|
|
sgwc_bearer_t *sgwc_default_bearer_in_sess(sgwc_sess_t *sess);
|
|
sgwc_bearer_t *sgwc_bearer_cycle(sgwc_bearer_t *bearer);
|
|
|
|
sgwc_tunnel_t *sgwc_tunnel_add(
|
|
sgwc_bearer_t *bearer, uint8_t interface_type);
|
|
int sgwc_tunnel_remove(sgwc_tunnel_t *tunnel);
|
|
void sgwc_tunnel_remove_all(sgwc_bearer_t *bearer);
|
|
sgwc_tunnel_t *sgwc_tunnel_find_by_teid(sgwc_ue_t *sgwc_ue, uint32_t teid);
|
|
sgwc_tunnel_t *sgwc_tunnel_find_by_interface_type(
|
|
sgwc_bearer_t *bearer, uint8_t interface_type);
|
|
sgwc_tunnel_t *sgwc_tunnel_find_by_pdr_id(
|
|
sgwc_sess_t *sess, ogs_pfcp_pdr_id_t pdr_id);
|
|
sgwc_tunnel_t *sgwc_dl_tunnel_in_bearer(sgwc_bearer_t *bearer);
|
|
sgwc_tunnel_t *sgwc_ul_tunnel_in_bearer(sgwc_bearer_t *bearer);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* SGWC_CONTEXT_H */
|