gauthier
7b5431a62c
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f
219 lines
8.0 KiB
C
Executable File
219 lines
8.0 KiB
C
Executable File
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU 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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OpenAirInterface 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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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
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Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
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*******************************************************************************/
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/*****************************************************************************
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Source esmData.h
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Version 0.1
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Date 2012/12/04
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Product NAS stack
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Subsystem EPS Session Management
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Author Frederic Maurel
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Description Defines internal private data handled by EPS Session
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Management sublayer.
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*****************************************************************************/
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#include <stdio.h> // sprintf
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#include "networkDef.h"
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#include "OctetString.h"
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#include "EpsBearerIdentity.h"
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#ifndef __ESMDATA_H__
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#define __ESMDATA_H__
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/****************************************************************************/
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/********************* G L O B A L C O N S T A N T S *******************/
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/****************************************************************************/
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/* Total number of active EPS bearers */
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#define ESM_DATA_EPS_BEARER_TOTAL 11
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/****************************************************************************/
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/************************ G L O B A L T Y P E S ************************/
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/****************************************************************************/
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/*
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* Minimal and maximal value of an EPS bearer identity:
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* The EPS Bearer Identity (EBI) identifies a message flow
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*/
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#define ESM_EBI_MIN (EPS_BEARER_IDENTITY_FIRST)
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#define ESM_EBI_MAX (EPS_BEARER_IDENTITY_LAST)
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/* EPS bearer context states */
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typedef enum {
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ESM_EBR_INACTIVE, /* No EPS bearer context exists */
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ESM_EBR_ACTIVE, /* The EPS bearer context is active,
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* in the UE, in the network */
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ESM_EBR_STATE_MAX
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} esm_ebr_state;
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/*
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* -----------------------
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* EPS bearer context data
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* -----------------------
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*/
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typedef struct esm_ebr_context_s {
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unsigned char ebi; /* EPS bearer identity */
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esm_ebr_state status; /* EPS bearer context status */
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int is_default_ebr; /* TRUE if the bearer context is associated
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* to a default EPS bearer */
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char cid; /* Identifier of the PDN context the EPS
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* bearer context has been assigned to */
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} esm_ebr_context_t;
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typedef struct esm_ebr_data_s {
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unsigned char index; /* Index of the next EPS bearer context
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* identity to be used */
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#define ESM_EBR_DATA_SIZE (ESM_EBI_MAX - ESM_EBI_MIN + 1)
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esm_ebr_context_t *context[ESM_EBR_DATA_SIZE + 1];
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} esm_ebr_data_t;
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/*
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* --------------------------------------------------------------------------
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* Structure of data handled by EPS Session Management sublayer in the UE
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* and in the MME
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* --------------------------------------------------------------------------
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*/
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/*
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* Structure of an EPS bearer
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* --------------------------
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* An EPS bearer is a logical concept which applies to the connection
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* between two endpoints (UE and PDN Gateway) with specific QoS attri-
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* butes. An EPS bearer corresponds to one Quality of Service policy
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* applied within the EPC and E-UTRAN.
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*/
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typedef struct esm_bearer_s {
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int bid; /* Identifier of the EPS bearer */
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unsigned int ebi; /* EPS bearer identity */
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network_qos_t qos; /* EPS bearer level QoS parameters */
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network_tft_t tft; /* Traffic Flow Template for packet filtering */
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} esm_bearer_t;
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/*
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* Structure of a PDN connection
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* -----------------------------
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* A PDN connection is the association between a UE represented by
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* one IPv4 address and/or one IPv6 prefix and a PDN represented by
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* an Access Point Name (APN).
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*/
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typedef struct esm_pdn_s {
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unsigned int pti; /* Identity of the procedure transaction executed
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* to activate the PDN connection entry */
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int is_emergency; /* Emergency bearer services indicator */
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OctetString apn; /* Access Point Name currently in used */
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int ambr; /* Aggregate Maximum Bit Rate of this APN */
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int type; /* Address PDN type (IPv4, IPv6, IPv4v6) */
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#define ESM_DATA_IPV4_ADDRESS_SIZE 4
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#define ESM_DATA_IPV6_ADDRESS_SIZE 8
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#define ESM_DATA_IP_ADDRESS_SIZE (ESM_DATA_IPV4_ADDRESS_SIZE + \
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ESM_DATA_IPV6_ADDRESS_SIZE)
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/* IPv4 PDN address and/or IPv6 prefix */
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char ip_addr[ESM_DATA_IP_ADDRESS_SIZE+1];
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int addr_realloc; /* Indicates whether the UE is allowed to subsequently
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* request another PDN connectivity to the same APN
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* using an address PDN type (IPv4 or IPv6) other
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* than the one already activated */
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int n_bearers; /* Number of allocated EPS bearers;
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* default EPS bearer is defined at index 0 */
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#define ESM_DATA_EPS_BEARER_MAX 4
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esm_bearer_t *bearer[ESM_DATA_EPS_BEARER_MAX];
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} esm_pdn_t;
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/*
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* Structure of the ESM data
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* -------------------------
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* The EPS Session Management sublayer handles data related to PDN
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* connections and EPS bearers. Each active PDN connection has a de-
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* fault EPS bearer. Several dedicated EPS bearers may exist within
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* a PDN connection.
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*/
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typedef struct esm_data_context_s {
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unsigned int ue_id;
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int n_ebrs; /* Total number of active EPS bearer contexts */
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int n_pdns; /* Number of active PDN connections */
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int emergency; /* Indicates whether a PDN connection for emergency
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* bearer services is established */
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#define ESM_DATA_PDN_MAX 4
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struct {
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int pid; /* Identifier of the PDN connection */
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int is_active; /* TRUE/FALSE if the PDN connection is active/inactive
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* or the process to activate/deactivate the PDN
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* connection is in progress */
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esm_pdn_t *data; /* Active PDN connection data */
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} pdn[ESM_DATA_PDN_MAX+1];
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esm_ebr_data_t ebr;
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} esm_data_context_t;
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/*
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* --------------------------------------------------------------------------
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* ESM internal data handled by EPS Session Management sublayer in the UE
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* --------------------------------------------------------------------------
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*/
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/*
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* Structure of the ESM data
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* -------------------------
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*/
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typedef esm_data_context_t esm_data_t;
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/****************************************************************************/
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/******************** G L O B A L V A R I A B L E S ********************/
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/****************************************************************************/
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/*
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* ESM internal data (used within ESM only)
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* ----------------------------------------
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*/
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esm_data_t _esm_data;
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/****************************************************************************/
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/****************** E X P O R T E D F U N C T I O N S ******************/
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/****************************************************************************/
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extern char ip_addr_str[100];
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extern char *esm_data_get_ipv4_addr(const OctetString *ip_addr);
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extern char *esm_data_get_ipv6_addr(const OctetString *ip_addr);
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extern char *esm_data_get_ipv4v6_addr(const OctetString *ip_addr);
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#endif /* __ESMDATA_H__*/
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