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#ifndef _GPRS_SGSN_H
#define _GPRS_SGSN_H
#include <stdint.h>
#define GSM_IMSI_LENGTH 17
#define GSM_IMEI_LENGTH 17
#define GSM_EXTENSION_LENGTH 15
/* TS 04.08 4.1.3.3 GMM mobility management states on the network side */
enum gprs_mm_state {
GMM_DEREGISTERED, /* 4.1.3.3.1.1 */
GMM_COMMON_PROC_INIT, /* 4.1.3.3.1.2 */
GMM_REGISTERED_NORMAL, /* 4.1.3.3.2.1 */
GMM_REGISTERED_SUSPENDED, /* 4.1.3.3.2.2 */
GMM_DEREGISTERED_INIT, /* 4.1.3.3.1.4 */
};
enum gprs_ciph_algo {
GPRS_ALGO_GEA0,
GPRS_ALGO_GEA1,
GPRS_ALGO_GEA2,
};
#define MS_RADIO_ACCESS_CAPA
/* According to TS 03.60, Table 5: SGSN MM and PDP Contexts */
/* Extended by 3GPP TS 23.060, Table 6: SGSN MM and PDP Contexts */
struct sgsn_mm_ctx {
struct llist_head list;
char imsi[GSM_IMSI_LENGTH];
enum gprs_mm_state mm_state;
uint32_t p_tmsi;
uint32_t p_tmsi_sig;
char imei[GSM_IMEI_LENGTH];
/* Opt: Software Version Numbber / TS 23.195 */
char msisdn[GSM_EXTENSION_LENGTH];
struct gprs_ra_id ra;
uint16_t cell_id;
uint32_t cell_id_age;
uint16_t sac; /* Iu: Service Area Code */
uint32_t sac_age;/* Iu: Service Area Code age */
/* VLR number */
uint32_t new_sgsn_addr;
/* Authentication Triplets */
/* Kc */
/* Iu: CK, IK, KSI */
/* CKSN */
enum gprs_ciph_algo ciph_algo;
struct {
uint8_t buf[14]; /* 10.5.5.12a */
uint8_t len;
} ms_radio_access_capa;
struct {
uint8_t buf[4]; /* 10.5.5.12 */
uint8_t len;
} ms_network_capa;
uint16_t drx_parms;
int mnrg; /* MS reported to HLR? */
int ngaf; /* MS reported to MSC/VLR? */
int ppf; /* paging for GPRS + non-GPRS? */
/* SMS Parameters */
int recovery;
uint8_t radio_prio_sms;
struct llist_head pdp_list;
/* Additional bits not present in the GSM TS */
uint32_t tlli;
struct timer_list timer;
unsigned int T;
};
enum pdp_ctx_state {
PDP_STAE_NONE,
};
enum pdp_type {
PDP_TYPE_NONE,
};
struct sgsn_pdp_ctx {
struct llist_head list;
unsigned int id;
enum pdp_ctx_state state;
enum pdp_type type;
uint32_t address;
char *apn_subscribed;
char *apn_used;
uint16_t nsapi;
uint8_t ti; /* transaction identifier */
uint32_t ggsn_in_use;
int vplmn_allowed;
uint32_t qos_profile_subscr;
uint32_t qos_profile_req;
uint32_t qos_profile_neg;
uint8_t radio_prio;
uint32_t tx_npdu_nr;
uint32_t rx_npdu_nr;
uint32_t tx_gtp_snd;
uint32_t rx_gtp_snu;
uint32_t charging_id;
int reordering_reqd;
};
/* look-up a SGSN MM context based on TLLI + RAI */
struct sgsn_mm_ctx *sgsn_mm_ctx_by_tlli(uint32_t tlli,
const struct gprs_ra_id *raid);
struct sgsn_mm_ctx *sgsn_mm_ctx_by_ptmsi(uint32_t tmsi);
struct sgsn_mm_ctx *sgsn_mm_ctx_by_imsi(const char *imsi);
/* Allocate a new SGSN MM context */
struct sgsn_mm_ctx *sgsn_mm_ctx_alloc(uint32_t tlli,
const struct gprs_ra_id *raid);
#endif /* _GPRS_SGSN_H */
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