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/*
* 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/>.
*/
#if !defined(OGS_GTP_INSIDE) && !defined(OGS_GTP_COMPILATION)
#error "This header cannot be included directly."
#endif
#ifndef OGS_GTP_CONTEXT_H
#define OGS_GTP_CONTEXT_H
#ifdef __cplusplus
extern "C" {
#endif
typedef struct ogs_gtp_context_s {
uint32_t gtpc_port; /* GTPC local port */
uint32_t gtpu_port; /* GTPU local port */
ogs_list_t gtpc_list; /* GTPC IPv4 Server List */
ogs_list_t gtpc_list6; /* GTPC IPv6 Server List */
ogs_sock_t *gtpc_sock; /* GTPC IPv4 Socket */
ogs_sock_t *gtpc_sock6; /* GTPC IPv6 Socket */
ogs_sockaddr_t *gtpc_addr; /* GTPC IPv4 Address */
ogs_sockaddr_t *gtpc_addr6; /* GTPC IPv6 Address */
ogs_list_t gtpu_list; /* GTPU IPv4/IPv6 Server List */
ogs_sock_t *gtpu_sock; /* GTPU IPv4 Socket */
ogs_sock_t *gtpu_sock6; /* GTPU IPv6 Socket */
ogs_sockaddr_t *gtpu_addr; /* GTPU IPv4 Address */
ogs_sockaddr_t *gtpu_addr6; /* GTPU IPv6 Address */
ogs_ip_t gtpu_ip; /* GTPU IP */;
ogs_list_t gtpu_peer_list; /* GTPU Node List */
ogs_list_t gtpu_resource_list; /* UP IP Resource List */
ogs_sockaddr_t *link_local_addr;
} ogs_gtp_context_t;
#define OGS_SETUP_GTP_NODE(__cTX, __gNODE) \
do { \
ogs_assert((__cTX)); \
ogs_assert((__gNODE)); \
(__cTX)->gnode = __gNODE; \
} while(0)
/**
* This structure represents the commonalities of GTP node such as MME, SGW,
* PGW gateway. Some of members may not be used by the specific type of node */
typedef struct ogs_gtp_node_s {
ogs_lnode_t node; /* A node of list_t */
void *data_ptr; /* Can be used by app */
ogs_sockaddr_t *sa_list; /* Socket Address List Candidate */
ogs_sock_t *sock; /* Socket Instance */
ogs_sockaddr_t addr; /* Remote Address */
ogs_ip_t ip; /* F-TEID IP Address Duplicate Check */
ogs_list_t local_list;
ogs_list_t remote_list;
} ogs_gtp_node_t;
typedef struct ogs_gtpu_resource_s {
ogs_lnode_t lnode;
ogs_user_plane_ip_resource_info_t info;
} ogs_gtpu_resource_t;
void ogs_gtp_context_init(int num_of_gtpu_resource);
void ogs_gtp_context_final(void);
ogs_gtp_context_t *ogs_gtp_self(void);
int ogs_gtp_context_parse_config(const char *local, const char *remote);
ogs_gtp_node_t *ogs_gtp_node_new(ogs_sockaddr_t *sa_list);
void ogs_gtp_node_free(ogs_gtp_node_t *node);
ogs_gtp_node_t *ogs_gtp_node_add_by_f_teid(
ogs_list_t *list, ogs_gtp2_f_teid_t *f_teid, uint16_t port);
ogs_gtp_node_t *ogs_gtp_node_add_by_addr(
ogs_list_t *list, ogs_sockaddr_t *addr);
void ogs_gtp_node_remove(ogs_list_t *list, ogs_gtp_node_t *node);
void ogs_gtp_node_remove_all(ogs_list_t *list);
ogs_gtp_node_t *ogs_gtp_node_find_by_addr(
ogs_list_t *list, ogs_sockaddr_t *addr);
ogs_gtp_node_t *ogs_gtp_node_find_by_f_teid(
ogs_list_t *list, ogs_gtp2_f_teid_t *f_teid);
ogs_gtp_node_t *ogs_gtp_node_add_by_ip(
ogs_list_t *list, ogs_ip_t *ip, uint16_t port);
ogs_gtp_node_t *ogs_gtp_node_find_by_ip(ogs_list_t *list, ogs_ip_t *ip);
ogs_gtpu_resource_t *ogs_gtpu_resource_add(ogs_list_t *list,
ogs_user_plane_ip_resource_info_t *info);
void ogs_gtpu_resource_remove(ogs_list_t *list,
ogs_gtpu_resource_t *resource);
void ogs_gtpu_resource_remove_all(ogs_list_t *list);
#ifdef __cplusplus
}
#endif
#endif /* OGS_GTP_CONTEXT_H */
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