mirror of https://github.com/PentHertz/srsLTE.git
146 lines
4.2 KiB
C++
146 lines
4.2 KiB
C++
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2017 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of srsLTE.
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*
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* srsLTE 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
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE 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 Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSEPC_S1AP_H
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#define SRSEPC_S1AP_H
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#include "srslte/asn1/gtpc.h"
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#include "srslte/asn1/liblte_s1ap.h"
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#include "srslte/asn1/liblte_mme.h"
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#include "srslte/common/common.h"
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#include "srslte/common/log.h"
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#include "srslte/common/s1ap_pcap.h"
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#include <strings.h>
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#include <arpa/inet.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/sctp.h>
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#include <unistd.h>
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#include <map>
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#include <set>
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#include "s1ap_common.h"
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#include "s1ap_mngmt_proc.h"
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#include "s1ap_nas_transport.h"
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#include "s1ap_ctx_mngmt_proc.h"
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#include "mme_gtpc.h"
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#include "srsepc/hdr/hss/hss.h"
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namespace srsepc{
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const uint16_t S1MME_PORT = 36412;
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class s1ap
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{
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public:
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static s1ap* get_instance();
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static void cleanup();
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int enb_listen();
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int init(s1ap_args_t s1ap_args, srslte::log_filter *s1ap_log, hss_interface_s1ap * hss_);
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void stop();
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int get_s1_mme();
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void delete_enb_ctx(int32_t assoc_id);
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bool s1ap_tx_pdu(srslte::byte_buffer_t *pdu, struct sctp_sndrcvinfo *enb_sri);
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bool handle_s1ap_rx_pdu(srslte::byte_buffer_t *pdu, struct sctp_sndrcvinfo *enb_sri);
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bool handle_initiating_message(LIBLTE_S1AP_INITIATINGMESSAGE_STRUCT *msg, struct sctp_sndrcvinfo *enb_sri);
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bool handle_successful_outcome(LIBLTE_S1AP_SUCCESSFULOUTCOME_STRUCT *msg);
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void activate_eps_bearer(uint64_t imsi, uint8_t ebi);
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void print_enb_ctx_info(const std::string &prefix, const enb_ctx_t &enb_ctx);
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uint32_t get_plmn();
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uint32_t get_next_mme_ue_s1ap_id();
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enb_ctx_t* find_enb_ctx(uint16_t enb_id);
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void add_new_enb_ctx(const enb_ctx_t &enb_ctx, const struct sctp_sndrcvinfo* enb_sri);
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void get_enb_ctx(uint16_t sctp_stream);
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bool add_ue_ctx_to_imsi_map(ue_ctx_t *ue_ctx);
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bool add_ue_ctx_to_mme_ue_s1ap_id_map(ue_ctx_t *ue_ctx);
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bool add_ue_to_enb_set(int32_t enb_assoc, uint32_t mme_ue_s1ap_id);
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ue_ctx_t* find_ue_ctx_from_imsi(uint64_t imsi);
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ue_ctx_t* find_ue_ctx_from_mme_ue_s1ap_id(uint32_t mme_ue_s1ap_id);
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bool release_ue_ecm_ctx(uint32_t mme_ue_s1ap_id);
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void release_ues_ecm_ctx_in_enb(int32_t enb_assoc);
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bool delete_ue_ctx(uint64_t imsi);
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uint32_t allocate_m_tmsi(uint64_t imsi);
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s1ap_args_t m_s1ap_args;
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srslte::log_filter *m_s1ap_log;
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s1ap_mngmt_proc* m_s1ap_mngmt_proc;
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s1ap_nas_transport* m_s1ap_nas_transport;
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s1ap_ctx_mngmt_proc* m_s1ap_ctx_mngmt_proc;
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std::map<uint32_t, uint64_t> m_tmsi_to_imsi;
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private:
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s1ap();
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virtual ~s1ap();
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static s1ap *m_instance;
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uint32_t m_plmn;
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srslte::byte_buffer_pool *m_pool;
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hss_interface_s1ap *m_hss;
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int m_s1mme;
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std::map<uint16_t, enb_ctx_t*> m_active_enbs;
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std::map<int32_t, uint16_t> m_sctp_to_enb_id;
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std::map<int32_t,std::set<uint32_t> > m_enb_assoc_to_ue_ids;
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std::map<uint64_t, ue_ctx_t*> m_imsi_to_ue_ctx;
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std::map<uint32_t, ue_ctx_t*> m_mme_ue_s1ap_id_to_ue_ctx;
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uint32_t m_next_mme_ue_s1ap_id;
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uint32_t m_next_m_tmsi;
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//FIXME the GTP-C should be moved to the MME class, when the packaging of GTP-C messages is done.
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mme_gtpc *m_mme_gtpc;
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//PCAP
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bool m_pcap_enable;
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srslte::s1ap_pcap m_pcap;
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};
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inline uint32_t
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s1ap::get_plmn()
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{
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return m_plmn;
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}
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} //namespace srsepc
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#endif // SRSEPC_S1AP_H
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