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/* GPRS subscriber details for use in SGSN land */
#pragma once
#include <stdint.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/socket.h>
#include <osmocom/gsm/protocol/gsm_23_003.h>
#include <osmocom/gsm/protocol/gsm_04_08_gprs.h>
#include <osmocom/sgsn/apn.h>
struct sgsn_instance;
struct sgsn_mm_ctx;
extern struct llist_head * const gprs_subscribers;
#define GPRS_SUBSCRIBER_FIRST_CONTACT 0x00000001
#define GPRS_SUBSCRIBER_UPDATE_AUTH_INFO_PENDING (1 << 16)
#define GPRS_SUBSCRIBER_UPDATE_LOCATION_PENDING (1 << 17)
#define GPRS_SUBSCRIBER_CANCELLED (1 << 18)
#define GPRS_SUBSCRIBER_ENABLE_PURGE (1 << 19)
#define GPRS_SUBSCRIBER_UPDATE_PENDING_MASK ( \
GPRS_SUBSCRIBER_UPDATE_LOCATION_PENDING | \
GPRS_SUBSCRIBER_UPDATE_AUTH_INFO_PENDING \
)
struct gsm_auth_tuple {
int use_count;
int key_seq;
struct osmo_auth_vector vec;
};
#define GSM_KEY_SEQ_INVAL 7 /* GSM 04.08 - 10.5.1.2 */
struct sgsn_subscriber_data {
struct sgsn_mm_ctx *mm;
struct gsm_auth_tuple auth_triplets[5];
int auth_triplets_updated;
struct llist_head pdp_list;
int error_cause;
uint8_t msisdn[9];
size_t msisdn_len;
uint8_t hlr[9];
size_t hlr_len;
uint8_t pdp_charg[2];
bool has_pdp_charg;
};
/* see GSM 09.02, 17.7.1, PDP-Context and GPRSSubscriptionData */
/* see GSM 09.02, B.1, gprsSubscriptionData */
struct sgsn_subscriber_pdp_data {
struct llist_head list;
unsigned int context_id;
enum gsm48_pdp_type_org pdp_type_org;
enum gsm48_pdp_type_nr pdp_type_nr;
struct osmo_sockaddr pdp_address[2];
char apn_str[GSM_APN_LENGTH];
uint8_t qos_subscribed[20];
size_t qos_subscribed_len;
uint8_t pdp_charg[2];
bool has_pdp_charg;
};
struct sgsn_subscriber_pdp_data *sgsn_subscriber_pdp_data_alloc(struct sgsn_subscriber_data *sdata);
struct gprs_subscr {
struct llist_head entry;
int use_count;
char imsi[GSM23003_IMSI_MAX_DIGITS+1];
uint32_t tmsi;
char imei[GSM23003_IMEISV_NUM_DIGITS+1];
bool authorized;
bool keep_in_ram;
uint32_t flags;
uint16_t lac;
struct sgsn_subscriber_data *sgsn_data;
};
struct gprs_subscr *_gprs_subscr_get(struct gprs_subscr *gsub,
const char *file, int line);
struct gprs_subscr *_gprs_subscr_put(struct gprs_subscr *gsub,
const char *file, int line);
#define gprs_subscr_get(gsub) _gprs_subscr_get(gsub, __FILE__, __LINE__)
#define gprs_subscr_put(gsub) _gprs_subscr_put(gsub, __FILE__, __LINE__)
int gprs_subscr_init(struct sgsn_instance *sgi);
int gprs_subscr_request_update_location(struct sgsn_mm_ctx *mmctx);
int gprs_subscr_request_auth_info(struct sgsn_mm_ctx *mmctx,
const uint8_t *auts,
const uint8_t *auts_rand);
void gprs_subscr_cleanup(struct gprs_subscr *subscr);
struct gprs_subscr *gprs_subscr_get_or_create(const char *imsi);
struct gprs_subscr *gprs_subscr_get_or_create_by_mmctx(struct sgsn_mm_ctx *mmctx);
struct gprs_subscr *gprs_subscr_get_by_imsi(const char *imsi);
void gprs_subscr_cancel(struct gprs_subscr *subscr);
void gprs_subscr_update(struct gprs_subscr *subscr);
void gprs_subscr_update_auth_info(struct gprs_subscr *subscr);
int gprs_subscr_rx_gsup_message(struct msgb *msg);
#define LOGGSUBSCRP(level, subscr, fmt, args...) \
LOGP(DGPRS, level, "SUBSCR(%s) " fmt, \
(subscr) ? (subscr)->imsi : "---", \
## args)
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