Lionel Gauthier
c943c756db
It will seg fault the mme, but that was also the case before when UE retry connecting git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7300 818b1a75-f10b-46b9-bf7c-635c3b92a50f
258 lines
9.6 KiB
C
258 lines
9.6 KiB
C
/*******************************************************************************
|
|
OpenAirInterface
|
|
Copyright(c) 1999 - 2014 Eurecom
|
|
|
|
OpenAirInterface is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
|
|
OpenAirInterface 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 OpenAirInterface.The full GNU General Public License is
|
|
included in this distribution in the file called "COPYING". If not,
|
|
see <http://www.gnu.org/licenses/>.
|
|
|
|
Contact Information
|
|
OpenAirInterface Admin: openair_admin@eurecom.fr
|
|
OpenAirInterface Tech : openair_tech@eurecom.fr
|
|
OpenAirInterface Dev : openair4g-devel@eurecom.fr
|
|
|
|
Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
|
|
|
|
*******************************************************************************/
|
|
|
|
|
|
/*! \file mme_app_ue_context.h
|
|
* \brief MME applicative layer
|
|
* \author Sebastien ROUX
|
|
* \date 2013
|
|
* \version 1.0
|
|
* @defgroup _mme_app_impl_ MME applicative layer
|
|
* @ingroup _ref_implementation_
|
|
* @{
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <inttypes.h> /* For sscanf formats */
|
|
#include <time.h> /* to provide time_t */
|
|
|
|
#include "s1ap_messages_types.h"
|
|
#include "nas_messages_types.h"
|
|
#include "s6a_messages_types.h"
|
|
#include "security_types.h"
|
|
#include "tree.h"
|
|
|
|
#ifndef MME_APP_UE_CONTEXT_H_
|
|
#define MME_APP_UE_CONTEXT_H_
|
|
|
|
typedef enum {
|
|
ECM_IDLE,
|
|
ECM_CONNECTED,
|
|
ECM_DEREGISTERED,
|
|
} mm_state_t;
|
|
|
|
typedef uint64_t mme_app_imsi_t;
|
|
|
|
#define IMSI_FORMAT SCNu64
|
|
|
|
/* Convert the IMSI contained by a char string NULL terminated to uint64_t */
|
|
#define MME_APP_STRING_TO_IMSI(sTRING, iMSI) sscanf(sTRING, "%"IMSI_FORMAT, iMSI)
|
|
#define MME_APP_IMSI_TO_STRING(iMSI, sTRING) snprintf(sTRING, IMSI_DIGITS_MAX+1, "%"IMSI_FORMAT, iMSI)
|
|
|
|
/** @struct bearer_context_t
|
|
* @brief Parameters that should be kept for an eps bearer.
|
|
*/
|
|
typedef struct bearer_context_s {
|
|
/* S-GW Tunnel Endpoint for User-Plane */
|
|
Teid_t s_gw_teid;
|
|
|
|
/* S-GW IP address for User-Plane */
|
|
ip_address_t s_gw_address;
|
|
|
|
/* P-GW Tunnel Endpoint for User-Plane */
|
|
Teid_t p_gw_teid;
|
|
|
|
/* P-GW IP address for User-Plane */
|
|
ip_address_t p_gw_address;
|
|
|
|
/* QoS for this bearer */
|
|
qci_t qci;
|
|
priority_level_t prio_level;
|
|
pre_emp_vulnerability_t pre_emp_vulnerability;
|
|
pre_emp_capability_t pre_emp_capability;
|
|
|
|
/* TODO: add TFT */
|
|
} bearer_context_t;
|
|
|
|
/** @struct ue_context_t
|
|
* @brief Useful parameters to know in MME application layer. They are set
|
|
* according to 3GPP TS.23.401 #5.7.2
|
|
*/
|
|
typedef struct ue_context_s {
|
|
/* Tree entry */
|
|
RB_ENTRY(ue_context_s) rb_entry;
|
|
|
|
/* Basic identifier for ue. IMSI is encoded on maximum of 15 digits of 4 bits,
|
|
* so usage of an unsigned integer on 64 bits is necessary.
|
|
*/
|
|
mme_app_imsi_t imsi; // set by nas_auth_param_req_t
|
|
#define IMSI_UNAUTHENTICATED (0x0)
|
|
#define IMSI_AUTHENTICATED (0x1)
|
|
/* Indicator to show the IMSI authentication state */
|
|
unsigned imsi_auth:1; // set by nas_auth_resp_t
|
|
|
|
unsigned eNB_ue_s1ap_id:24;
|
|
uint32_t mme_ue_s1ap_id;
|
|
|
|
/* ue_id is equal to mme_ue_s1ap_id */
|
|
uint32_t ue_id; // set by nas_auth_param_req_t
|
|
|
|
uint8_t nb_of_vectors; // updated by S6A AUTHENTICATION ANSWER
|
|
/* List of authentication vectors for E-UTRAN */
|
|
eutran_vector_t *vector_list; // updated by S6A AUTHENTICATION ANSWER
|
|
// pointer in vector_list
|
|
eutran_vector_t *vector_in_use; // updated by S6A AUTHENTICATION ANSWER
|
|
|
|
#define SUBSCRIPTION_UNKNOWN 0x0
|
|
#define SUBSCRIPTION_KNOWN 0x1
|
|
unsigned subscription_known:1; // set by S6A UPDATE LOCATION ANSWER
|
|
uint8_t msisdn[MSISDN_LENGTH+1]; // set by S6A UPDATE LOCATION ANSWER
|
|
uint8_t msisdn_length; // set by S6A UPDATE LOCATION ANSWER
|
|
|
|
mm_state_t mm_state; // not set/read
|
|
/* Globally Unique Temporary Identity */
|
|
GUTI_t guti; // guti.gummei.plmn set by nas_auth_param_req_t
|
|
// read by S6A UPDATE LOCATION REQUEST
|
|
me_identity_t me_identity; // not set/read except read by display utility
|
|
|
|
/* TODO: Add TAI list */
|
|
|
|
/* Last known cell identity */
|
|
cgi_t e_utran_cgi; // set by nas_attach_req_t
|
|
// read for S11 CREATE_SESSION_REQUEST
|
|
/* Time when the cell identity was acquired */
|
|
time_t cell_age; // set by nas_auth_param_req_t
|
|
|
|
/* TODO: add csg_id */
|
|
/* TODO: add csg_membership */
|
|
|
|
network_access_mode_t access_mode; // set by S6A UPDATE LOCATION ANSWER
|
|
|
|
/* TODO: add ue radio cap, ms classmarks, supported codecs */
|
|
|
|
/* TODO: add ue network capability, ms network capability */
|
|
/* TODO: add selected NAS algorithm */
|
|
|
|
/* TODO: add DRX parameter */
|
|
|
|
apn_config_profile_t apn_profile; // set by S6A UPDATE LOCATION ANSWER
|
|
ard_t access_restriction_data; // set by S6A UPDATE LOCATION ANSWER
|
|
subscriber_status_t sub_status; // set by S6A UPDATE LOCATION ANSWER
|
|
ambr_t subscribed_ambr; // set by S6A UPDATE LOCATION ANSWER
|
|
ambr_t used_ambr;
|
|
|
|
rau_tau_timer_t rau_tau_timer; // set by S6A UPDATE LOCATION ANSWER
|
|
|
|
/* Store the radio capabilities as received in S1AP UE capability indication
|
|
* message.
|
|
*/
|
|
char *ue_radio_capabilities; // not set/read
|
|
int ue_radio_cap_length; // not set/read
|
|
|
|
Teid_t mme_s11_teid; // set by mme_app_send_s11_create_session_req
|
|
Teid_t sgw_s11_teid; // set by S11 CREATE_SESSION_RESPONSE
|
|
PAA_t paa; // set by S11 CREATE_SESSION_RESPONSE
|
|
|
|
// temp
|
|
char pending_pdn_connectivity_req_imsi[16];
|
|
uint8_t pending_pdn_connectivity_req_imsi_length;
|
|
OctetString pending_pdn_connectivity_req_apn;
|
|
OctetString pending_pdn_connectivity_req_pdn_addr;
|
|
int pending_pdn_connectivity_req_pti;
|
|
unsigned pending_pdn_connectivity_req_ue_id;
|
|
network_qos_t pending_pdn_connectivity_req_qos;
|
|
void *pending_pdn_connectivity_req_proc_data;
|
|
int pending_pdn_connectivity_req_request_type;
|
|
|
|
ebi_t default_bearer_id;
|
|
bearer_context_t eps_bearers[BEARERS_PER_UE];
|
|
} ue_context_t;
|
|
|
|
typedef struct {
|
|
uint32_t nb_ue_managed;
|
|
uint32_t nb_ue_idle;
|
|
|
|
uint32_t nb_bearers_managed;
|
|
|
|
uint32_t nb_ue_since_last_stat;
|
|
uint32_t nb_bearers_since_last_stat;
|
|
|
|
/* Entry to the root */
|
|
RB_HEAD(ue_context_map, ue_context_s) ue_context_tree;
|
|
} mme_ue_context_t;
|
|
|
|
/** \brief Retrieve an UE context by selecting the provided IMSI
|
|
* \param imsi Imsi to find in UE map
|
|
* @returns an UE context matching the IMSI or NULL if the context doesn't exists
|
|
**/
|
|
ue_context_t *mme_ue_context_exists_imsi(mme_ue_context_t *mme_ue_context,
|
|
mme_app_imsi_t imsi);
|
|
|
|
/** \brief Retrieve an UE context by selecting the provided S11 teid
|
|
* \param teid The tunnel endpoint identifier used between MME and S-GW
|
|
* @returns an UE context matching the teid or NULL if the context doesn't exists
|
|
**/
|
|
ue_context_t *mme_ue_context_exists_s11_teid(mme_ue_context_t *mme_ue_context,
|
|
uint32_t teid);
|
|
|
|
/** \brief Retrieve an UE context by selecting the provided mme_ue_s1ap_id
|
|
* \param mme_ue_s1ap_id The UE id identifier used in S1AP MME (and NAS)
|
|
* @returns an UE context matching the mme_ue_s1ap_id or NULL if the context doesn't exists
|
|
**/
|
|
ue_context_t *mme_ue_context_exists_mme_ue_s1ap_id(mme_ue_context_t *mme_ue_context,
|
|
uint32_t mme_ue_s1ap_id);
|
|
|
|
/** \brief Retrieve an UE context by selecting the provided nas_ue_id
|
|
* \param nas_ue_id The UE id identifier used in S1AP MME and NAS
|
|
* @returns an UE context matching the nas_ue_id or NULL if the context doesn't exists
|
|
**/
|
|
ue_context_t *mme_ue_context_exists_nas_ue_id(mme_ue_context_t *mme_ue_context,
|
|
uint32_t nas_ue_id);
|
|
|
|
/** \brief Retrieve an UE context by selecting the provided guti
|
|
* \param guti The GUTI used by the UE
|
|
* @returns an UE context matching the guti or NULL if the context doesn't exists
|
|
**/
|
|
ue_context_t *mme_ue_context_exists_guti(mme_ue_context_t *mme_ue_context,
|
|
GUTI_t guti);
|
|
|
|
/** \brief Insert a new UE context in the tree of known UEs.
|
|
* At least the IMSI should be known to insert the context in the tree.
|
|
* \param ue_context_p The UE context to insert
|
|
* @returns 0 in case of success, -1 otherwise
|
|
**/
|
|
int mme_insert_ue_context(mme_ue_context_t *mme_ue_context,
|
|
struct ue_context_s *ue_context_p);
|
|
|
|
/** \brief Allocate memory for a new UE context
|
|
* @returns Pointer to the new structure, NULL if allocation failed
|
|
**/
|
|
ue_context_t *mme_create_new_ue_context(void);
|
|
|
|
/** \brief Dump the UE contexts present in the tree
|
|
**/
|
|
void mme_app_dump_ue_contexts(mme_ue_context_t *mme_ue_context);
|
|
|
|
|
|
void mme_app_handle_s1ap_ue_context_release_req(const s1ap_ue_context_release_req_t const *s1ap_ue_context_release_req);
|
|
|
|
#endif /* MME_APP_UE_CONTEXT_H_ */
|
|
|
|
/* @} */
|