138 lines
4.2 KiB
C
138 lines
4.2 KiB
C
/*
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* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef UPF_CONTEXT_H
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#define UPF_CONTEXT_H
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#include "upf-config.h"
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#if HAVE_NET_IF_H
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#include <net/if.h>
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#endif
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#include "ogs-gtp.h"
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#include "ogs-pfcp.h"
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#include "ogs-app.h"
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#include "ipfw/ogs-ipfw.h"
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#include "timer.h"
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#include "upf-sm.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int __upf_log_domain;
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#undef OGS_LOG_DOMAIN
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#define OGS_LOG_DOMAIN __upf_log_domain
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typedef struct upf_context_s {
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ogs_hash_t *seid_hash; /* hash table (SEID) */
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ogs_hash_t *f_seid_hash; /* hash table (F-SEID) */
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ogs_hash_t *ipv4_hash; /* hash table (IPv4 Address) */
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ogs_hash_t *ipv6_hash; /* hash table (IPv6 Address) */
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ogs_list_t sess_list;
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} upf_context_t;
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/* Accounting: */
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typedef struct upf_sess_urr_acc_s {
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bool reporting_enabled;
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ogs_timer_t *t_time_threshold; /* Time threshold expiration handler */
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uint32_t time_threshold_start; /* When t_time_threshold started */
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ogs_pfcp_urr_ur_seqn_t report_seqn; /* Next seqn to use when reporting */
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uint64_t total_octets;
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uint64_t ul_octets;
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uint64_t dl_octets;
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uint64_t total_pkts;
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uint64_t ul_pkts;
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uint64_t dl_pkts;
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ogs_time_t time_of_first_packet;
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ogs_time_t time_of_last_packet;
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/* Snapshot of measurement when last report was sent: */
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struct {
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uint64_t total_octets;
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uint64_t ul_octets;
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uint64_t dl_octets;
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uint64_t total_pkts;
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uint64_t ul_pkts;
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uint64_t dl_pkts;
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ogs_time_t timestamp;
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} last_report;
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} upf_sess_urr_acc_t;
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#define UPF_SESS(pfcp_sess) ogs_container_of(pfcp_sess, upf_sess_t, pfcp)
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typedef struct upf_sess_s {
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ogs_lnode_t lnode;
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uint32_t index; /**< An index of this node */
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ogs_pfcp_sess_t pfcp;
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uint64_t upf_n4_seid; /* UPF SEID is dervied from INDEX */
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struct {
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uint64_t seid;
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ogs_ip_t ip;
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} smf_n4_f_seid; /* SMF SEID is received from Peer */
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/* APN Configuration */
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ogs_pfcp_ue_ip_t *ipv4;
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ogs_pfcp_ue_ip_t *ipv6;
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char *gx_sid; /* Gx Session ID */
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ogs_pfcp_node_t *pfcp_node;
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/* Accounting: */
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upf_sess_urr_acc_t urr_acc[OGS_MAX_NUM_OF_URR]; /* FIXME: This probably needs to be mved to a hashtable or alike */
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} upf_sess_t;
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void upf_context_init(void);
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void upf_context_final(void);
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upf_context_t *upf_self(void);
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int upf_context_parse_config(void);
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upf_sess_t *upf_sess_add_by_message(ogs_pfcp_message_t *message);
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upf_sess_t *upf_sess_add(ogs_pfcp_f_seid_t *f_seid);
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int upf_sess_remove(upf_sess_t *sess);
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void upf_sess_remove_all(void);
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upf_sess_t *upf_sess_find(uint32_t index);
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upf_sess_t *upf_sess_find_by_smf_n4_seid(uint64_t seid);
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upf_sess_t *upf_sess_find_by_smf_n4_f_seid(ogs_pfcp_f_seid_t *f_seid);
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upf_sess_t *upf_sess_find_by_upf_n4_seid(uint64_t seid);
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upf_sess_t *upf_sess_find_by_ipv4(uint32_t addr);
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upf_sess_t *upf_sess_find_by_ipv6(uint32_t *addr6);
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uint8_t upf_sess_set_ue_ip(upf_sess_t *sess,
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uint8_t session_type, ogs_pfcp_pdr_t *pdr);
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void upf_sess_urr_acc_add(upf_sess_t *sess, ogs_pfcp_urr_t *urr, size_t size, bool is_uplink);
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void upf_sess_urr_acc_fill_usage_report(upf_sess_t *sess, const ogs_pfcp_urr_t *urr,
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ogs_pfcp_user_plane_report_t *report, unsigned int idx);
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void upf_sess_urr_acc_snapshot(upf_sess_t *sess, ogs_pfcp_urr_t *urr);
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void upf_sess_urr_acc_time_threshold_setup(upf_sess_t *sess, ogs_pfcp_urr_t *urr);
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#ifdef __cplusplus
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}
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#endif
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#endif /* UPF_CONTEXT_H */
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