| #ifndef _SGSN_H |
| #define _SGSN_H |
| |
| |
| #include <osmocom/core/msgb.h> |
| #include <osmocom/crypt/gprs_cipher.h> |
| #include <osmocom/gprs/gprs_ns.h> |
| #include <openbsc/gprs_sgsn.h> |
| #include <openbsc/oap.h> |
| |
| #include <ares.h> |
| |
| struct gprs_gsup_client; |
| struct hostent; |
| |
| enum sgsn_auth_policy { |
| SGSN_AUTH_POLICY_OPEN, |
| SGSN_AUTH_POLICY_CLOSED, |
| SGSN_AUTH_POLICY_ACL_ONLY, |
| SGSN_AUTH_POLICY_REMOTE |
| }; |
| |
| |
| enum sgsn_rate_ctr_keys { |
| CTR_LLC_DL_BYTES, |
| CTR_LLC_UL_BYTES, |
| CTR_LLC_DL_PACKETS, |
| CTR_LLC_UL_PACKETS, |
| CTR_GPRS_ATTACH_REQUEST, |
| CTR_GPRS_ATTACH_ACKED, |
| CTR_GPRS_ATTACH_REJECTED, |
| CTR_GPRS_DETACH_REQUEST, |
| CTR_GPRS_DETACH_ACKED, |
| CTR_GPRS_ROUTING_AREA_REQUEST, |
| CTR_GPRS_ROUTING_AREA_ACKED, |
| CTR_GPRS_ROUTING_AREA_REJECT, |
| /* PDP single packet counter / GSM 04.08 9.5.1 - 9.5.9 */ |
| CTR_PDP_ACTIVATE_REQUEST, |
| CTR_PDP_ACTIVATE_REJECT, |
| CTR_PDP_ACTIVATE_ACCEPT, |
| CTR_PDP_REQUEST_ACTIVATE, /* unused */ |
| CTR_PDP_REQUEST_ACTIVATE_REJ, /* unused */ |
| CTR_PDP_MODIFY_REQUEST, /* unsued */ |
| CTR_PDP_MODIFY_ACCEPT, /* unused */ |
| CTR_PDP_DL_DEACTIVATE_REQUEST, |
| CTR_PDP_DL_DEACTIVATE_ACCEPT, |
| CTR_PDP_UL_DEACTIVATE_REQUEST, |
| CTR_PDP_UL_DEACTIVATE_ACCEPT, |
| }; |
| |
| struct sgsn_cdr { |
| char *filename; |
| int interval; |
| }; |
| |
| struct sgsn_config { |
| /* parsed from config file */ |
| |
| char *gtp_statedir; |
| struct sockaddr_in gtp_listenaddr; |
| |
| /* misc */ |
| struct gprs_ns_inst *nsi; |
| |
| enum sgsn_auth_policy auth_policy; |
| enum gprs_ciph_algo cipher; |
| struct llist_head imsi_acl; |
| |
| struct sockaddr_in gsup_server_addr; |
| int gsup_server_port; |
| |
| int require_authentication; |
| int require_update_location; |
| |
| /* CDR configuration */ |
| struct sgsn_cdr cdr; |
| |
| struct { |
| int T3312; |
| int T3322; |
| int T3350; |
| int T3360; |
| int T3370; |
| int T3313; |
| int T3314; |
| int T3316; |
| int T3385; |
| int T3386; |
| int T3395; |
| int T3397; |
| } timers; |
| |
| int dynamic_lookup; |
| |
| struct oap_config oap; |
| }; |
| |
| struct sgsn_instance { |
| char *config_file; |
| struct sgsn_config cfg; |
| /* File descriptor wrappers for LibGTP */ |
| struct osmo_fd gtp_fd0; |
| struct osmo_fd gtp_fd1c; |
| struct osmo_fd gtp_fd1u; |
| /* Timer for libGTP */ |
| struct osmo_timer_list gtp_timer; |
| /* GSN instance for libgtp */ |
| struct gsn_t *gsn; |
| /* Subscriber */ |
| struct gprs_gsup_client *gsup_client; |
| /* LLME inactivity timer */ |
| struct osmo_timer_list llme_timer; |
| |
| /* c-ares event loop integration */ |
| struct osmo_timer_list ares_timer; |
| struct llist_head ares_fds; |
| ares_channel ares_channel; |
| struct ares_addr_node *ares_servers; |
| |
| struct rate_ctr_group *rate_ctrs; |
| }; |
| |
| extern struct sgsn_instance *sgsn; |
| |
| /* sgsn_vty.c */ |
| |
| int sgsn_vty_init(void); |
| int sgsn_parse_config(const char *config_file, struct sgsn_config *cfg); |
| |
| /* sgsn.c */ |
| |
| /* Main input function for Gb proxy */ |
| int sgsn_rcvmsg(struct msgb *msg, struct gprs_nsvc *nsvc, uint16_t ns_bvci); |
| |
| |
| struct sgsn_pdp_ctx *sgsn_create_pdp_ctx(struct sgsn_ggsn_ctx *ggsn, |
| struct sgsn_mm_ctx *mmctx, |
| uint16_t nsapi, |
| struct tlv_parsed *tp); |
| int sgsn_delete_pdp_ctx(struct sgsn_pdp_ctx *pctx); |
| |
| /* gprs_sndcp.c */ |
| |
| /* Entry point for the SNSM-ACTIVATE.indication */ |
| int sndcp_sm_activate_ind(struct gprs_llc_lle *lle, uint8_t nsapi); |
| /* Entry point for the SNSM-DEACTIVATE.indication */ |
| int sndcp_sm_deactivate_ind(struct gprs_llc_lle *lle, uint8_t nsapi); |
| /* Called by SNDCP when it has received/re-assembled a N-PDU */ |
| int sgsn_rx_sndcp_ud_ind(struct gprs_ra_id *ra_id, int32_t tlli, uint8_t nsapi, |
| struct msgb *msg, uint32_t npdu_len, uint8_t *npdu); |
| int sndcp_unitdata_req(struct msgb *msg, struct gprs_llc_lle *lle, uint8_t nsapi, |
| void *mmcontext); |
| int sndcp_llunitdata_ind(struct msgb *msg, struct gprs_llc_lle *lle, |
| uint8_t *hdr, uint16_t len); |
| |
| |
| /* |
| * CDR related functionality |
| */ |
| int sgsn_cdr_init(struct sgsn_instance *sgsn); |
| |
| |
| /* |
| * C-ARES related functionality |
| */ |
| int sgsn_ares_init(struct sgsn_instance *sgsn); |
| int sgsn_ares_query(struct sgsn_instance *sgsm, const char *name, ares_host_callback cb, void *data); |
| |
| #endif |