| #ifndef _GPRS_SGSN_H |
| #define _GPRS_SGSN_H |
| |
| #include <stdint.h> |
| #include <netinet/in.h> |
| |
| #include <osmocore/gsm48.h> |
| |
| #define GSM_IMSI_LENGTH 17 |
| #define GSM_IMEI_LENGTH 17 |
| #define GSM_EXTENSION_LENGTH 15 |
| |
| struct gprs_llc_lle; |
| |
| /* 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, |
| GPRS_ALGO_GEA3, |
| }; |
| |
| enum gprs_mm_ctr { |
| GMM_CTR_PKTS_SIG_IN, |
| GMM_CTR_PKTS_SIG_OUT, |
| GMM_CTR_PKTS_UDATA_IN, |
| GMM_CTR_PKTS_UDATA_OUT, |
| GMM_CTR_BYTES_UDATA_IN, |
| GMM_CTR_BYTES_UDATA_OUT, |
| GMM_CTR_PDP_CTX_ACT, |
| GMM_CTR_SUSPEND, |
| GMM_CTR_PAGING_PS, |
| GMM_CTR_PAGING_CS, |
| GMM_CTR_RA_UPDATE, |
| }; |
| |
| enum gprs_pdp_ctx { |
| PDP_CTR_PKTS_UDATA_IN, |
| PDP_CTR_PKTS_UDATA_OUT, |
| PDP_CTR_BYTES_UDATA_IN, |
| PDP_CTR_BYTES_UDATA_OUT, |
| }; |
| |
| enum gprs_t3350_mode { |
| GMM_T3350_MODE_ATT, |
| GMM_T3350_MODE_RAU, |
| GMM_T3350_MODE_PTMSI_REALL, |
| }; |
| |
| #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_old; /* old P-TMSI before new is confirmed */ |
| 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 */ |
| struct gprs_llc_llme *llme; |
| uint32_t tlli; |
| uint32_t tlli_new; |
| uint16_t nsei; |
| uint16_t bvci; |
| struct rate_ctr_group *ctrg; |
| struct timer_list timer; |
| unsigned int T; /* Txxxx number */ |
| unsigned int num_T_exp; /* number of consecutive T expirations */ |
| |
| enum gprs_t3350_mode t3350_mode; |
| uint8_t t3370_id_type; |
| }; |
| |
| /* 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); |
| |
| |
| enum pdp_ctx_state { |
| PDP_STATE_NONE, |
| PDP_STATE_CR_REQ, |
| PDP_STATE_CR_CONF, |
| }; |
| |
| enum pdp_type { |
| PDP_TYPE_NONE, |
| PDP_TYPE_ETSI_PPP, |
| PDP_TYPE_IANA_IPv4, |
| PDP_TYPE_IANA_IPv6, |
| }; |
| |
| struct sgsn_pdp_ctx { |
| struct llist_head list; /* list_head for mmctx->pdp_list */ |
| struct llist_head g_list; /* list_head for global list */ |
| struct sgsn_mm_ctx *mm; /* back pointer to MM CTX */ |
| struct sgsn_ggsn_ctx *ggsn; /* which GGSN serves this PDP */ |
| struct rate_ctr_group *ctrg; |
| |
| //unsigned int id; |
| struct pdp_t *lib; /* pointer to libgtp PDP ctx */ |
| enum pdp_ctx_state state; |
| enum pdp_type type; |
| uint32_t address; |
| char *apn_subscribed; |
| //char *apn_used; |
| uint16_t nsapi; /* SNDCP */ |
| uint16_t sapi; /* LLC */ |
| uint8_t ti; /* transaction identifier */ |
| 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 PDP context by MM context and NSAPI */ |
| struct sgsn_pdp_ctx *sgsn_pdp_ctx_by_nsapi(const struct sgsn_mm_ctx *mm, |
| uint8_t nsapi); |
| /* look up PDP context by MM context and transaction ID */ |
| struct sgsn_pdp_ctx *sgsn_pdp_ctx_by_tid(const struct sgsn_mm_ctx *mm, |
| uint8_t tid); |
| |
| struct sgsn_pdp_ctx *sgsn_pdp_ctx_alloc(struct sgsn_mm_ctx *mm, |
| uint8_t nsapi); |
| void sgsn_pdp_ctx_free(struct sgsn_pdp_ctx *pdp); |
| |
| |
| struct sgsn_ggsn_ctx { |
| struct llist_head list; |
| uint32_t id; |
| unsigned int gtp_version; |
| struct in_addr remote_addr; |
| struct gsn_t *gsn; |
| }; |
| struct sgsn_ggsn_ctx *sgsn_ggsn_ctx_alloc(uint32_t id); |
| struct sgsn_ggsn_ctx *sgsn_ggsn_ctx_by_id(uint32_t id); |
| struct sgsn_ggsn_ctx *sgsn_ggsn_ctx_find_alloc(uint32_t id); |
| |
| struct apn_ctx { |
| struct llist_head list; |
| struct sgsn_ggsn_ctx *ggsn; |
| char *name; |
| char *description; |
| }; |
| |
| extern struct llist_head sgsn_mm_ctxts; |
| extern struct llist_head sgsn_ggsn_ctxts; |
| extern struct llist_head sgsn_apn_ctxts; |
| extern struct llist_head sgsn_pdp_ctxts; |
| |
| uint32_t sgsn_alloc_ptmsi(void); |
| |
| #endif /* _GPRS_SGSN_H */ |