91 lines
3.2 KiB
C
91 lines
3.2 KiB
C
#pragma once
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#include <stdbool.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/gsm/gsm48.h>
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#include <osmocom/sigtran/sccp_sap.h>
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struct msgb;
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struct osmo_auth_vector;
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struct RANAP_RAB_SetupOrModifiedItemIEs_s;
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struct RANAP_Cause;
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struct ranap_iu_rnc;
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/* Debugging switches from asn1c and osmo-iuh */
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extern int asn_debug;
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extern int asn1_xer_print;
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enum ranap_nsap_addr_enc {
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RANAP_NSAP_ADDR_ENC_X213,
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RANAP_NSAP_ADDR_ENC_V4RAW,
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};
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struct ranap_ue_conn_ctx {
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struct llist_head list;
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struct ranap_iu_rnc *rnc;
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uint32_t conn_id;
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int integrity_active;
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struct gprs_ra_id ra_id;
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enum ranap_nsap_addr_enc rab_assign_addr_enc;
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bool notification; /* send notification to the upstream user */
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/* if true the ue_ctx will be free on Iu release complete */
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bool free_on_release;
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/* Will be set when the Iu Release Command has been sent */
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struct osmo_timer_list release_timeout;
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};
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enum ranap_iu_event_type {
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RANAP_IU_EVENT_RAB_ASSIGN,
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RANAP_IU_EVENT_SECURITY_MODE_COMPLETE,
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RANAP_IU_EVENT_IU_RELEASE, /* An actual Iu Release message was received */
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RANAP_IU_EVENT_LINK_INVALIDATED, /* A SUA link was lost or closed down */
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};
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extern const struct value_string ranap_iu_event_type_names[];
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static inline const char *ranap_iu_event_type_str(enum ranap_iu_event_type e)
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{
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return get_value_string(ranap_iu_event_type_names, e);
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}
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/* Implementations of iu_recv_cb_t shall find the ranap_ue_conn_ctx in msg->dst. */
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typedef int (* ranap_iu_recv_cb_t )(struct msgb *msg, struct gprs_ra_id *ra_id,
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uint16_t *sai);
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typedef int (* ranap_iu_event_cb_t )(struct ranap_ue_conn_ctx *ue_ctx,
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enum ranap_iu_event_type type, void *data);
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typedef int (* ranap_iu_rab_ass_resp_cb_t )(struct ranap_ue_conn_ctx *ue_ctx, uint8_t rab_id,
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struct RANAP_RAB_SetupOrModifiedItemIEs_s *setup_ies);
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int ranap_iu_init(void *ctx, int log_subsystem, const char *sccp_user_name, struct osmo_sccp_instance *sccp,
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ranap_iu_recv_cb_t iu_recv_cb, ranap_iu_event_cb_t iu_event_cb);
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int ranap_iu_tx(struct msgb *msg, uint8_t sapi);
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int ranap_iu_page_cs(const char *imsi, const uint32_t *tmsi, uint16_t lac);
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int ranap_iu_page_ps(const char *imsi, const uint32_t *ptmsi, uint16_t lac, uint8_t rac);
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int ranap_iu_rab_act(struct ranap_ue_conn_ctx *ue_ctx, struct msgb *msg);
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int ranap_iu_rab_deact(struct ranap_ue_conn_ctx *ue_ctx, uint8_t rab_id);
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int ranap_iu_tx_sec_mode_cmd(struct ranap_ue_conn_ctx *uectx, struct osmo_auth_vector *vec,
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int send_ck, int new_key);
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int ranap_iu_tx_common_id(struct ranap_ue_conn_ctx *ue_ctx, const char *imsi);
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int ranap_iu_tx_release(struct ranap_ue_conn_ctx *ctx, const struct RANAP_Cause *cause);
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/* transmit a Iu Release Command and free the ctx afterwards.
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* If a Release Complete is not received within timeout s,
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* release the SCCP connection. */
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void ranap_iu_tx_release_free(struct ranap_ue_conn_ctx *ctx,
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const struct RANAP_Cause *cause,
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int timeout);
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/* freeing the UE will release all resources
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* This will close the SCCP connection connected to the UE */
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void ranap_iu_free_ue(struct ranap_ue_conn_ctx *ue_ctx);
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void ranap_iu_vty_init(int iu_parent_node, enum ranap_nsap_addr_enc *rab_assign_addr_enc);
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int ranap_iu_vty_config_write(struct vty *vty, const char *indent);
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