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#pragma once
struct sgsn_pdp_ctx;
struct msgb;
struct gprs_ra_id;
struct RANAP_RAB_SetupOrModifiedItemIEs_s;
struct ue_conn_ctx {
struct llist_head list;
struct osmo_sua_link *link;
uint32_t conn_id;
};
/* 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 is ra_id only used for gprs? ^ */
uint16_t *sai);
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_rab_ass_resp_cb_t ui_rab_ass_resp_cb);
int iu_tx(struct msgb *msg, uint8_t sapi);
int iu_rab_act_cs(struct ue_conn_ctx *ue_ctx, uint32_t rtp_ip, uint16_t rtp_port);
int iu_rab_act_ps(struct sgsn_pdp_ctx *pdp);
int iu_rab_deact(struct ue_conn_ctx *ue_ctx, uint8_t rab_id);
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