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