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open5gs/src/pgw/pgw_context.h

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#ifndef __PGW_CONTEXT_H__
#define __PGW_CONTEXT_H__
#include "core_list.h"
#include "core_index.h"
#include "core_errno.h"
#include "core_hash.h"
#include "core_network.h"
#include "core_msgq.h"
#include "core_timer.h"
#include "gtp_types.h"
#include "gtp_message.h"
#define MAX_NUM_OF_UE_POOL 16
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct _gtp_node_t gtp_node_t;
typedef struct _pgw_context_t {
c_uint32_t gtpc_port; /* PGW GTP-C local port */
c_uint32_t gtpu_port; /* PGW GTP-U local port */
list_t gtpc_list; /* PGW GTPC IPv4 Server List */
c_sockaddr_t *gtpc_addr; /* PGW GTPC IPv4 Address */
list_t gtpc_list6; /* PGW GTPC IPv6 Server List */
c_sockaddr_t *gtpc_addr6; /* PGW GTPC IPv6 Address */
list_t gtpu_list; /* PGW GTPU IPv4 Server List */
c_sockaddr_t *gtpu_addr; /* PGW GTPU IPv4 Address */
list_t gtpu_list6; /* PGW GTPU IPv6 Server List */
c_sockaddr_t *gtpu_addr6; /* PGW GTPU IPv6 Address */
const char* fd_conf_path; /* PGW freeDiameter conf path */
msgq_id queue_id; /* Qsesssess for processing PGW control plane */
tm_service_t tm_service; /* Timer Service */
sock_id tun_sock; /* PGW Tun Interace for UE */
const char *tun_ifname; /* default : pgwtun */
struct {
const char *ipstr; /* IP : "172.16.0.1", "cafe::1", ... */
const char *mask_or_numbits; /* MASK : "16, 64, ... */
const char *apn; /* APN : "internet", "volte", .. */
int family; /* AF_INET or AF_INET6 */
} ue_pool[MAX_NUM_OF_UE_POOL];
c_uint8_t num_of_ue_pool;
struct {
c_uint32_t primary;
c_uint32_t secondary;
} dns;
list_t sgw_s5c_list; /* SGW GTPC Node List */
list_t sgw_s5u_list; /* SGW GTPU Node List */
list_t ip_pool_list;
hash_t *sess_hash; /* hash table (IMSI+APN) */
} pgw_context_t;
typedef struct _pgw_ip_pool_t {
lnode_t node; /**< A node of list_t */
c_uint32_t ue_addr;
} pgw_ip_pool_t;
typedef struct _pgw_ue_ip_t {
c_uint8_t index; /* Pool index */
c_uint32_t addr[4];
} pgw_ue_ip_t;
typedef struct _pgw_sess_t {
lnode_t node; /**< A node of list_t */
index_t index; /**< An index of this node */
c_uint32_t pgw_s5c_teid; /* PGW-S5C-TEID is derived from INDEX */
c_uint32_t sgw_s5c_teid; /* SGW-S5C-TEID is received from SGW */
/* IMSI */
c_uint8_t imsi[MAX_IMSI_LEN];
int imsi_len;
c_int8_t imsi_bcd[MAX_IMSI_BCD_LEN+1];
/* APN Configuration */
pdn_t pdn;
pgw_ue_ip_t* ipv4;
pgw_ue_ip_t* ipv6;
/* User-Lication-Info */
tai_t tai;
e_cgi_t e_cgi;
/* Hash Key : IMSI+APN */
c_uint8_t hash_keybuf[MAX_IMSI_LEN+MAX_APN_LEN+1];
int hash_keylen;
list_t bearer_list;
/* Related Context */
gtp_node_t *gnode;
} pgw_sess_t;
typedef struct _pgw_bearer_t {
lnode_t node; /**< A node of list_t */
index_t index;
c_uint8_t ebi;
c_uint32_t pgw_s5u_teid; /* PGW_S5U is derived from INDEX */
c_uint32_t sgw_s5u_teid; /* SGW_S5U is received from SGW */
/* QoS Infomration */
qos_t qos;
/* Packet Filter Identifier Generator(1~15) */
c_uint8_t pf_identifier;
/* Packet Filter List */
list_t pf_list;
pgw_sess_t *sess;
gtp_node_t *gnode;
} pgw_bearer_t;
typedef struct _pgw_rule_t {
c_uint8_t proto;
struct {
struct {
c_uint32_t addr;
c_uint32_t mask;
} local;
struct {
c_uint32_t addr;
c_uint32_t mask;
} remote;
} ipv4;
struct {
struct {
c_uint16_t low;
c_uint16_t high;
} local;
struct {
c_uint16_t low;
c_uint16_t high;
} remote;
} port;
} pgw_rule_t;
typedef struct _pgw_pf_t {
lnode_t node;
ED3(c_uint8_t spare:2;,
c_uint8_t direction:2;,
c_uint8_t identifier:4;)
pgw_rule_t rule;
pgw_bearer_t *bearer;
} pgw_pf_t;
CORE_DECLARE(status_t) pgw_context_init(void);
CORE_DECLARE(status_t) pgw_context_final(void);
CORE_DECLARE(pgw_context_t*) pgw_self(void);
CORE_DECLARE(status_t) pgw_context_parse_config(void);
CORE_DECLARE(status_t) pgw_context_setup_trace_module(void);
CORE_DECLARE(gtp_node_t *) pgw_sgw_add_by_message(gtp_message_t *message);
CORE_DECLARE(pgw_sess_t *) pgw_sess_add_by_message(gtp_message_t *message);
CORE_DECLARE(pgw_sess_t*) pgw_sess_add(
c_uint8_t *imsi, int imsi_len, c_int8_t *apn,
c_uint8_t pdn_type, c_uint8_t ebi);
CORE_DECLARE(status_t ) pgw_sess_remove(pgw_sess_t *sess);
CORE_DECLARE(status_t ) pgw_sess_remove_all();
CORE_DECLARE(pgw_sess_t*) pgw_sess_find(index_t index);
CORE_DECLARE(pgw_sess_t*) pgw_sess_find_by_teid(c_uint32_t teid);
CORE_DECLARE(pgw_sess_t*) pgw_sess_find_by_imsi_apn(
c_uint8_t *imsi, int imsi_len, c_int8_t *apn);
CORE_DECLARE(hash_index_t *) pgw_sess_first();
CORE_DECLARE(hash_index_t *) pgw_sess_next(hash_index_t *hi);
CORE_DECLARE(pgw_sess_t *) pgw_sess_this(hash_index_t *hi);
CORE_DECLARE(pgw_bearer_t*) pgw_bearer_add(pgw_sess_t *sess);
CORE_DECLARE(status_t) pgw_bearer_remove(pgw_bearer_t *bearer);
CORE_DECLARE(status_t) pgw_bearer_remove_all(pgw_sess_t *sess);
CORE_DECLARE(pgw_bearer_t*) pgw_bearer_find(index_t index);
CORE_DECLARE(pgw_bearer_t*) pgw_bearer_find_by_pgw_s5u_teid(
c_uint32_t pgw_s5u_teid);
CORE_DECLARE(pgw_bearer_t*) pgw_bearer_find_by_ebi(
pgw_sess_t *sess, c_uint8_t ebi);
CORE_DECLARE(pgw_bearer_t*) pgw_bearer_find_by_qci_arp(pgw_sess_t *sess,
c_uint8_t qci,
c_uint8_t priority_level,
c_uint8_t pre_emption_capability,
c_uint8_t pre_emption_vulnerability);
CORE_DECLARE(pgw_bearer_t*) pgw_default_bearer_in_sess(pgw_sess_t *sess);
CORE_DECLARE(pgw_bearer_t*) pgw_bearer_first(pgw_sess_t *sess);
CORE_DECLARE(pgw_bearer_t*) pgw_bearer_next(pgw_bearer_t *bearer);
CORE_DECLARE(pgw_bearer_t*) pgw_bearer_find_by_packet(pkbuf_t *pkt);
CORE_DECLARE(pgw_pf_t*) pgw_pf_add(
pgw_bearer_t *bearer, c_uint32_t precedence);
CORE_DECLARE(status_t ) pgw_pf_remove(pgw_pf_t *pf);
CORE_DECLARE(status_t ) pgw_pf_remove_all(pgw_bearer_t *bearer);
CORE_DECLARE(pgw_pf_t*) pgw_pf_find_by_id(
pgw_bearer_t *pgw_bearer, c_uint8_t id);
CORE_DECLARE(pgw_pf_t*) pgw_pf_first(pgw_bearer_t *bearer);
CORE_DECLARE(pgw_pf_t*) pgw_pf_next(pgw_pf_t *pf);
CORE_DECLARE(status_t ) pgw_ue_pool_generate();
CORE_DECLARE(pgw_ue_ip_t *) pgw_ue_ip_alloc(int family, const char *apn);
CORE_DECLARE(status_t) pgw_ue_ip_free(pgw_ue_ip_t *ip);
CORE_DECLARE(c_uint8_t) pgw_ue_ip_prefixlen(pgw_ue_ip_t *ue_ip);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __PGW_CONTEXT_H__ */
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