diff options
Diffstat (limited to 'include/openbsc/iu.h')
-rw-r--r-- | include/openbsc/iu.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/openbsc/iu.h b/include/openbsc/iu.h new file mode 100644 index 000000000..f973ac1ba --- /dev/null +++ b/include/openbsc/iu.h @@ -0,0 +1,62 @@ +#pragma once + +#include <stdbool.h> + +struct sgsn_pdp_ctx; +struct msgb; +struct gprs_ra_id; + +struct RANAP_RAB_SetupOrModifiedItemIEs_s; +struct RANAP_GlobalRNC_ID; + +struct ue_conn_ctx { + struct llist_head list; + struct osmo_sccp_link *link; + uint32_t conn_id; + int integrity_active; + struct gprs_ra_id ra_id; +}; + +enum iu_event_type { + IU_EVENT_RAB_ASSIGN, + IU_EVENT_SECURITY_MODE_COMPLETE, + IU_EVENT_IU_RELEASE, /* An actual Iu Release message was received */ + IU_EVENT_LINK_INVALIDATED, /* A SUA link was lost or closed down */ + /* FIXME: maybe IU_EVENT_IU_RELEASE and IU_EVENT_LINK_INVALIDATED + * should be combined to one generic event that simply means the + * ue_conn_ctx should no longer be used, for whatever reason. */ +}; + +extern const struct value_string iu_event_type_names[]; +static inline const char *iu_event_type_str(enum iu_event_type e) +{ + return get_value_string(iu_event_type_names, e); +} + +/* Implementations of iu_recv_cb_t shall find the ue_conn_ctx in msg->dst. */ +typedef int (* iu_recv_cb_t )(struct msgb *msg, struct gprs_ra_id *ra_id, + /* TODO "gprs_" in generic CS+PS domain ^ */ + uint16_t *sai); + +typedef int (* iu_event_cb_t )(struct ue_conn_ctx *ue_ctx, + enum iu_event_type type, void *data); + +typedef int (* iu_rab_ass_resp_cb_t )(struct ue_conn_ctx *ue_ctx, uint8_t rab_id, + struct RANAP_RAB_SetupOrModifiedItemIEs_s *setup_ies); + +int iu_init(void *ctx, const char *listen_addr, uint16_t listen_port, + iu_recv_cb_t iu_recv_cb, iu_event_cb_t iu_event_cb); + +void iu_link_del(struct osmo_sccp_link *link); + +int iu_tx(struct msgb *msg, uint8_t sapi); + +int iu_page_cs(const char *imsi, const uint32_t *tmsi, uint16_t lac); +int iu_page_ps(const char *imsi, const uint32_t *ptmsi, uint16_t lac, uint8_t rac); + +int iu_rab_act(struct ue_conn_ctx *ue_ctx, struct msgb *msg); +int iu_rab_deact(struct ue_conn_ctx *ue_ctx, uint8_t rab_id); +int iu_tx_sec_mode_cmd(struct ue_conn_ctx *uectx, struct gsm_auth_tuple *tp, + int send_ck, int new_key); + +void iu_vty_init(int *asn_debug_p); |