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open5gs/src/sgw/sgw_context.h

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#ifndef __SGW_CONTEXT_H__
#define __SGW_CONTEXT_H__
#include "core_list.h"
#include "core_errno.h"
#include "core_net.h"
#include "core_event.h"
#include "core_hash.h"
#include "gtp_xact.h"
#include "types.h"
#include "sgw_sm.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef gtp_node_t sgw_mme_t;
typedef gtp_node_t sgw_pgw_t;
typedef struct _sgw_context_t {
c_uint32_t sgw_addr; /* SGW local address */
c_uint32_t s11_addr; /* SGW S11 local address */
c_uint32_t s11_port; /* SGW S11 local port */
net_sock_t* s11_sock; /* SGW S11 local listen socket */
c_uint32_t s5c_addr; /* SGW S5-C local address */
c_uint32_t s5c_port; /* SGW S5-C local port */
net_sock_t* s5c_sock; /* SGW S5-C local listen socket */
c_uint32_t s1u_addr; /* SGW S1-U local address */
c_uint32_t s1u_port; /* SGW S1-U local port */
net_sock_t* s1u_sock; /* SGW S1-U local listen socket */
c_uint32_t s5u_addr; /* SGW S5-U local address */
c_uint32_t s5u_port; /* SGW S5-U local port */
net_sock_t* s5u_sock; /* SGW S5-U local listen socket */
msgq_id queue_id; /* Queue for processing SGW control plane */
tm_service_t tm_service; /* Timer Service */
list_t mme_list; /* MME GTP Node List */
list_t pgw_list; /* PGW GTP Node List */
hash_t *imsi_ue_hash; /* hash table (IMSI : SGW_UE) */
} sgw_context_t;
typedef struct _sgw_ue_t {
lnode_t node; /* A node of list_t */
index_t index; /* An index of this node */
/* UE identity */
c_uint8_t imsi[MAX_IMSI_LEN];
int imsi_len;
c_int8_t imsi_bcd[MAX_IMSI_BCD_LEN+1];
/* IMPORTANT!
* SGW-S11-F-TEID is same with an index */
c_uint32_t sgw_s11_teid;
c_uint32_t sgw_s11_addr;
c_uint32_t mme_s11_teid; /* MME-S11-F-TEID */
c_uint32_t mme_s11_addr; /* MME-S11-F-TEID IPv4 Address */
list_t sess_list;
} sgw_ue_t;
typedef struct _sgw_sess_t {
lnode_t node; /* A node of list_t */
index_t index; /* An index of this node */
/* IMPORTANT!
* SGW-S5C-F-TEID is same with an index */
c_uint32_t sgw_s5c_teid;
c_uint32_t sgw_s5c_addr;
c_uint32_t pgw_s5c_teid; /* PGW-S5C-F-TEID */
c_uint32_t pgw_s5c_addr; /* PGW-S5C-F-TEID IPv4 Address */
/* APN Configuration */
pdn_t pdn;
list_t bearer_list;
/* Related Context */
#define SGW_S11_PATH_IN_SESSION(session, xaction) \
do { \
d_assert((session), return, "Null param"); \
d_assert((xaction), return, "Null param"); \
(session)->mme = (xaction)->gnode; \
} while(0)
sgw_mme_t *mme;
#define SGW_S5C_PATH_IN_SESSION(session, gnode) \
do { \
d_assert((session), return, "Null param"); \
d_assert((gnode), return, "Null param"); \
(session)->pgw = gnode; \
} while(0)
sgw_mme_t *pgw;
sgw_ue_t *sgw_ue;
} sgw_sess_t;
typedef struct _sgw_bearer_t {
lnode_t node; /**< A node of list_t */
index_t index;
c_uint8_t ebi;
/* IMPORTANT!
* SGW-S1U-TEID is same with an index */
c_uint32_t sgw_s1u_teid;
c_uint32_t sgw_s1u_addr;
c_uint32_t enb_s1u_teid;
c_uint32_t enb_s1u_addr;
/* IMPORTANT!
* SGW-S5U-TEID is same with an index */
c_uint32_t sgw_s5u_teid;
c_uint32_t sgw_s5u_addr;
c_uint32_t pgw_s5u_teid;
c_uint32_t pgw_s5u_addr;
c_uint32_t state;
/* Pkts which will be buffered in case of UE-IDLE */
c_uint32_t num_buffered_pkt;
#define MAX_NUM_BUFFER_PKT 512
pkbuf_t* buffered_pkts[MAX_NUM_BUFFER_PKT];
sgw_sess_t *sess;
} sgw_bearer_t;
#define SGW_DL_NOTI_SENT 0x0001
#define CHECK_DL_NOTI_SENT(bearer) ((bearer)->state & SGW_DL_NOTI_SENT)
#define SET_DL_NOTI_SENT(bearer) \
do { \
(bearer)->state |= SGW_DL_NOTI_SENT;\
} while (0)
#define RESET_DL_NOTI_SENT(bearer) \
do { \
(bearer)->state &= ~SGW_DL_NOTI_SENT;\
} while (0)
CORE_DECLARE(status_t) sgw_context_init(void);
CORE_DECLARE(status_t) sgw_context_final(void);
CORE_DECLARE(sgw_context_t*) sgw_self(void);
CORE_DECLARE(status_t) sgw_context_parse_config(void);
CORE_DECLARE(status_t) sgw_context_setup_trace_module(void);
CORE_DECLARE(sgw_mme_t*) sgw_mme_add(void);
CORE_DECLARE(status_t) sgw_mme_remove(sgw_mme_t *mme);
CORE_DECLARE(status_t) sgw_mme_remove_all(void);
CORE_DECLARE(sgw_mme_t*) sgw_mme_find(c_uint32_t addr, c_uint16_t port);
CORE_DECLARE(sgw_mme_t*) sgw_mme_first(void);
CORE_DECLARE(sgw_mme_t*) sgw_mme_next(sgw_mme_t *mme);
CORE_DECLARE(sgw_pgw_t*) sgw_pgw_add(void);
CORE_DECLARE(status_t) sgw_pgw_remove(sgw_pgw_t *pgw);
CORE_DECLARE(status_t) sgw_pgw_remove_all(void);
CORE_DECLARE(sgw_pgw_t*) sgw_pgw_find(c_uint32_t addr, c_uint16_t port);
CORE_DECLARE(sgw_pgw_t*) sgw_pgw_first(void);
CORE_DECLARE(sgw_pgw_t*) sgw_pgw_next(sgw_pgw_t *pgw);
CORE_DECLARE(sgw_ue_t*) sgw_ue_add(c_uint8_t *imsi, int imsi_len,
c_int8_t *apn, c_uint8_t id);
CORE_DECLARE(status_t) sgw_ue_remove(sgw_ue_t *sgw_ue);
CORE_DECLARE(status_t) sgw_ue_remove_all();
CORE_DECLARE(sgw_ue_t*) sgw_ue_find(index_t index);
CORE_DECLARE(sgw_ue_t*) sgw_ue_find_by_imsi(c_uint8_t *imsi, int imsi_len);
CORE_DECLARE(sgw_ue_t*) sgw_ue_find_by_imsi_bcd(c_int8_t *imsi_bcd);
CORE_DECLARE(sgw_ue_t*) sgw_ue_find_by_teid(c_uint32_t teid);
CORE_DECLARE(sgw_ue_t *) sgw_ue_find_or_add_by_message(
gtp_message_t *gtp_message);
CORE_DECLARE(hash_index_t *) sgw_ue_first();
CORE_DECLARE(hash_index_t *) sgw_ue_next(hash_index_t *hi);
CORE_DECLARE(sgw_ue_t *) sgw_ue_this(hash_index_t *hi);
CORE_DECLARE(sgw_sess_t*) sgw_sess_add(sgw_ue_t *sgw_ue,
c_int8_t *apn, c_uint8_t ebi);
CORE_DECLARE(status_t ) sgw_sess_remove(sgw_sess_t *sess);
CORE_DECLARE(status_t ) sgw_sess_remove_all(sgw_ue_t *sgw_ue);
CORE_DECLARE(sgw_sess_t*) sgw_sess_find(index_t index);
CORE_DECLARE(sgw_sess_t*) sgw_sess_find_by_apn(
sgw_ue_t *sgw_ue, c_int8_t *apn);
CORE_DECLARE(sgw_sess_t*) sgw_sess_find_by_ebi(
sgw_ue_t *sgw_ue, c_uint8_t ebi);
CORE_DECLARE(sgw_sess_t*) sgw_sess_find_by_teid(c_uint32_t teid);
CORE_DECLARE(sgw_sess_t*) sgw_sess_first(sgw_ue_t *sgw_ue);
CORE_DECLARE(sgw_sess_t*) sgw_sess_next(sgw_sess_t *sess);
CORE_DECLARE(sgw_bearer_t*) sgw_bearer_add(sgw_sess_t *sess, c_uint8_t ebi);
CORE_DECLARE(status_t) sgw_bearer_remove(sgw_bearer_t *bearer);
CORE_DECLARE(status_t) sgw_bearer_remove_all(sgw_sess_t *sess);
CORE_DECLARE(sgw_bearer_t*) sgw_bearer_find_by_sgw_s5u_teid(
c_uint32_t sgw_s5u_teid);
CORE_DECLARE(sgw_bearer_t*) sgw_bearer_find_by_sgw_s1u_teid(
c_uint32_t sgw_s1u_teid);
CORE_DECLARE(sgw_bearer_t*) sgw_bearer_find_by_sess_ebi(
sgw_sess_t *sess, c_uint8_t ebi);
CORE_DECLARE(sgw_bearer_t*) sgw_bearer_find_by_ue_ebi(
sgw_ue_t *sgw_ue, c_uint8_t ebi);
CORE_DECLARE(sgw_bearer_t*) sgw_default_bearer_in_sess(sgw_sess_t *sess);
CORE_DECLARE(sgw_bearer_t*) sgw_bearer_first(sgw_sess_t *sess);
CORE_DECLARE(sgw_bearer_t*) sgw_bearer_next(sgw_bearer_t *bearer);
CORE_DECLARE(sgw_bearer_t*) sgw_bearer_find(index_t index);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __SGW_CONTEXT_H__ */
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