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Diffstat (limited to 'src/shared/libosmocore/include/osmocom/gprs/gprs_bssgp.h')
| -rw-r--r-- | src/shared/libosmocore/include/osmocom/gprs/gprs_bssgp.h | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/src/shared/libosmocore/include/osmocom/gprs/gprs_bssgp.h b/src/shared/libosmocore/include/osmocom/gprs/gprs_bssgp.h deleted file mode 100644 index eb4e7219..00000000 --- a/src/shared/libosmocore/include/osmocom/gprs/gprs_bssgp.h +++ /dev/null @@ -1,211 +0,0 @@ -#ifndef _GPRS_BSSGP_H -#define _GPRS_BSSGP_H - -#include <stdint.h> -#include <osmocom/core/timer.h> -#include <osmocom/core/linuxlist.h> - -#include <osmocom/gsm/gsm48.h> -#include <osmocom/gsm/prim.h> - -#include <osmocom/gprs/protocol/gsm_08_18.h> - -/* gprs_bssgp_util.c */ -extern struct gprs_ns_inst *bssgp_nsi; -struct msgb *bssgp_msgb_alloc(void); -const char *bssgp_cause_str(enum gprs_bssgp_cause cause); -/* Transmit a simple response such as BLOCK/UNBLOCK/RESET ACK/NACK */ -int bssgp_tx_simple_bvci(uint8_t pdu_type, uint16_t nsei, - uint16_t bvci, uint16_t ns_bvci); -/* Chapter 10.4.14: Status */ -int bssgp_tx_status(uint8_t cause, uint16_t *bvci, struct msgb *orig_msg); - -enum bssgp_prim { - PRIM_BSSGP_DL_UD, - PRIM_BSSGP_UL_UD, - PRIM_BSSGP_PTM_UD, - - PRIM_BSSGP_GMM_SUSPEND, - PRIM_BSSGP_GMM_RESUME, - PRIM_BSSGP_GMM_PAGING, - - PRIM_NM_FLUSH_LL, - PRIM_NM_LLC_DISCARDED, - PRIM_NM_BVC_RESET, - PRIM_NM_BVC_BLOCK, - PRIM_NM_BVC_UNBLOCK, -}; - -struct osmo_bssgp_prim { - struct osmo_prim_hdr oph; - - /* common fields */ - uint16_t nsei; - uint16_t bvci; - uint32_t tlli; - struct tlv_parsed *tp; - struct gprs_ra_id *ra_id; - - /* specific fields */ - union { - struct { - uint8_t suspend_ref; - } resume; - } u; -}; - -/* gprs_bssgp.c */ - -/*! \brief BSSGP flow control (SGSN side) According to Section 8.2 */ -struct bssgp_flow_control { - uint32_t bucket_size_max; /*!< maximum size of the bucket (octets) */ - uint32_t bucket_leak_rate; /*!< leak rate of the bucket (octets/sec) */ - - uint32_t bucket_counter; /*!< number of tokens in the bucket */ - struct timeval time_last_pdu; /*!< timestamp of last PDU sent */ - - /* the built-in queue */ - uint32_t max_queue_depth; /*!< how many packets to queue (mgs) */ - uint32_t queue_depth; /*!< current length of queue (msgs) */ - struct llist_head queue; /*!< linked list of msgb's */ - struct osmo_timer_list timer; /*!< timer-based dequeueing */ - - /*! callback to be called at output of flow control */ - int (*out_cb)(struct bssgp_flow_control *fc, struct msgb *msg, - uint32_t llc_pdu_len, void *priv); -}; - -#define BVC_S_BLOCKED 0x0001 - -/* The per-BTS context that we keep on the SGSN side of the BSSGP link */ -struct bssgp_bvc_ctx { - struct llist_head list; - - struct gprs_ra_id ra_id; /*!< parsed RA ID of the remote BTS */ - uint16_t cell_id; /*!< Cell ID of the remote BTS */ - - /* NSEI and BVCI of underlying Gb link. Together they - * uniquely identify a link to a BTS (5.4.4) */ - uint16_t bvci; - uint16_t nsei; - - uint32_t state; - - struct rate_ctr_group *ctrg; - - struct bssgp_flow_control *fc; - /*! default maximum size of per-MS bucket in octets */ - uint32_t bmax_default_ms; - /*! default bucket leak rate of per-MS bucket in octests/s */ - uint32_t r_default_ms; - - /* we might want to add this as a shortcut later, avoiding the NSVC - * lookup for every packet, similar to a routing cache */ - //struct gprs_nsvc *nsvc; -}; -extern struct llist_head bssgp_bvc_ctxts; -/* Find a BTS Context based on parsed RA ID and Cell ID */ -struct bssgp_bvc_ctx *btsctx_by_raid_cid(const struct gprs_ra_id *raid, uint16_t cid); -/* Find a BTS context based on BVCI+NSEI tuple */ -struct bssgp_bvc_ctx *btsctx_by_bvci_nsei(uint16_t bvci, uint16_t nsei); - -#define BVC_F_BLOCKED 0x0001 - -enum bssgp_ctr { - BSSGP_CTR_PKTS_IN, - BSSGP_CTR_PKTS_OUT, - BSSGP_CTR_BYTES_IN, - BSSGP_CTR_BYTES_OUT, - BSSGP_CTR_BLOCKED, - BSSGP_CTR_DISCARDED, -}; - - -#include <osmocom/gsm/tlv.h> -#include <osmocom/gprs/gprs_msgb.h> - -/* BSSGP-UL-UNITDATA.ind */ -int bssgp_rcvmsg(struct msgb *msg); - -/* BSSGP-DL-UNITDATA.req */ -struct bssgp_lv { - uint16_t len; - uint8_t *v; -}; -/* parameters for BSSGP downlink userdata transmission */ -struct bssgp_dl_ud_par { - uint32_t *tlli; - char *imsi; - struct bssgp_flow_control *fc; - uint16_t drx_parms; - /* FIXME: priority */ - struct bssgp_lv ms_ra_cap; - uint8_t qos_profile[3]; -}; -int bssgp_tx_dl_ud(struct msgb *msg, uint16_t pdu_lifetime, - struct bssgp_dl_ud_par *dup); - -uint16_t bssgp_parse_cell_id(struct gprs_ra_id *raid, const uint8_t *buf); -int bssgp_create_cell_id(uint8_t *buf, const struct gprs_ra_id *raid, - uint16_t cid); - -/* Wrapper around TLV parser to parse BSSGP IEs */ -static inline int bssgp_tlv_parse(struct tlv_parsed *tp, uint8_t *buf, int len) -{ - return tlv_parse(tp, &tvlv_att_def, buf, len, 0, 0); -} - -/*! \brief BSSGP Paging mode */ -enum bssgp_paging_mode { - BSSGP_PAGING_PS, - BSSGP_PAGING_CS, -}; - -/*! \brief BSSGP Paging scope */ -enum bssgp_paging_scope { - BSSGP_PAGING_BSS_AREA, /*!< all cells in BSS */ - BSSGP_PAGING_LOCATION_AREA, /*!< all cells in LA */ - BSSGP_PAGING_ROUTEING_AREA, /*!< all cells in RA */ - BSSGP_PAGING_BVCI, /*!< one cell */ -}; - -/*! \brief BSSGP paging information */ -struct bssgp_paging_info { - enum bssgp_paging_mode mode; /*!< CS or PS paging */ - enum bssgp_paging_scope scope; /*!< bssgp_paging_scope */ - struct gprs_ra_id raid; /*!< RA Identifier */ - uint16_t bvci; /*!< BVCI */ - char *imsi; /*!< IMSI, if any */ - uint32_t *ptmsi; /*!< P-TMSI, if any */ - uint16_t drx_params; /*!< DRX parameters */ - uint8_t qos[3]; /*!< QoS parameters */ -}; - -/* Send a single GMM-PAGING.req to a given NSEI/NS-BVCI */ -int bssgp_tx_paging(uint16_t nsei, uint16_t ns_bvci, - struct bssgp_paging_info *pinfo); - -void bssgp_fc_init(struct bssgp_flow_control *fc, - uint32_t bucket_size_max, uint32_t bucket_leak_rate, - uint32_t max_queue_depth, - int (*out_cb)(struct bssgp_flow_control *fc, struct msgb *msg, - uint32_t llc_pdu_len, void *priv)); - -/* input function of the flow control implementation, called first - * for the MM flow control, and then as the MM flow control output - * callback in order to perform BVC flow control */ -int bssgp_fc_in(struct bssgp_flow_control *fc, struct msgb *msg, - uint32_t llc_pdu_len, void *priv); - -/* Initialize the Flow Control parameters for a new MS according to - * default values for the BVC specified by BVCI and NSEI */ -int bssgp_fc_ms_init(struct bssgp_flow_control *fc_ms, uint16_t bvci, - uint16_t nsei, uint32_t max_queue_depth); - -/* gprs_bssgp_vty.c */ -int bssgp_vty_init(void); -void bssgp_set_log_ss(int ss); - -int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx); - -#endif /* _GPRS_BSSGP_H */ |