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#pragma once
#include <osmocom/core/select.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/write_queue.h>
#define DEBUG
#include <osmocom/core/logging.h>
#define msgb_ppid(msg) (msg)->cb[0]
enum {
DMAIN,
DHNBAP,
DSUA,
};
/* 25.467 Section 7.1 */
#define IUH_DEFAULT_SCTP_PORT 29169
#define RNA_DEFAULT_SCTP_PORT 25471
#define IUH_PPI_RUA 19
#define IUH_PPI_HNBAP 20
#define IUH_PPI_SABP 31
#define IUH_PPI_RNA 42
#define IUH_PPI_PUA 55
#define IUH_MSGB_SIZE 2048
struct umts_cell_id {
uint16_t mcc; /*!< Mobile Country Code */
uint16_t mnc; /*!< Mobile Network Code */
uint16_t lac; /*!< Locaton Area Code */
uint16_t rac; /*!< Routing Area Code */
uint16_t sac; /*!< Service Area Code */
uint32_t cid; /*!< Cell ID */
};
struct hnb_gw;
struct hnb_context {
/*! Entry in HNB-global list of HNB */
struct llist_head list;
/*! HNB-GW we are part of */
struct hnb_gw *gw;
/*! SCTP socket + write queue for Iuh to this specific HNB */
struct osmo_wqueue wqueue;
/*! copied from HNB-Identity-Info IE */
char identity_info[256];
/*! copied from Cell Identity IE */
struct umts_cell_id id;
/*! SCTP stream ID for HNBAP */
uint16_t hnbap_stream;
/*! SCTP stream ID for RUA */
uint16_t rua_stream;
};
struct ue_context {
/*! Entry in the HNB-global list of UE */
struct llist_head list;
/*! Unique Context ID for this UE */
uint32_t context_id;
char imsi[16+1];
/*! UE is serviced via this HNB */
struct hnb_context *hnb;
};
struct hnb_gw {
struct {
/*! SCTP port for Iuh listening */
uint16_t iuh_listen_port;
/*! The UDP port where we receive multiplexed CS user
* plane traffic from HNBs */
uint16_t iuh_cs_mux_port;
uint16_t rnc_id;
} config;
/*! SCTP listen socket for incoming connections */
struct osmo_fd listen_fd;
struct llist_head hnb_list;
struct llist_head ue_list;
uint32_t next_ue_ctx_id;
};
extern struct hnb_gw g_hnb_gw;
struct ue_context *ue_context_by_id(uint32_t id);
struct ue_context *ue_context_by_imsi(const char *imsi);
struct ue_context *ue_context_alloc(struct hnb_context *hnb, const char *imsi);
void ue_context_free(struct ue_context *ue);
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