Osmocom Home NodeB Gateway, for attaching femtocells to the 3G CN (OsmoMSC, OsmoSGSN) https://osmocom.org/projects/osmohnbgw
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#pragma once
#include <stdint.h>
#include <osmocom/core/linuxlist.h>
enum hnbgw_context_map_state {
MAP_S_ACTIVE, /* currently active map */
MAP_S_RESERVED1, /* just disconnected, still resrved */
MAP_S_RESERVED2, /* still reserved */
MAP_S_NUM_STATES /* Number of states, keep this at the end */
extern const struct value_string hnbgw_context_map_state_names[];
static inline const char *hnbgw_context_map_state_name(enum hnbgw_context_map_state val)
{ return get_value_string(hnbgw_context_map_state_names, val); }
struct hnb_context;
struct hnbgw_cnlink;
struct hnbgw_context_map {
/* entry in the per-CN list of mappings */
struct llist_head cn_list;
/* entry in the per-HNB list of mappings */
struct llist_head hnb_list;
/* pointer to HNB */
struct hnb_context *hnb_ctx;
/* pointer to CN */
struct hnbgw_cnlink *cn_link;
/* RUA contxt ID */
uint32_t rua_ctx_id;
/* False for CS, true for PS */
bool is_ps;
/* SCCP User SAP connection ID */
uint32_t scu_conn_id;
enum hnbgw_context_map_state state;
/* FSM instance for the MGW */
struct osmo_fsm_inst *mgw_fi;
struct hnbgw_context_map *
context_map_alloc_by_hnb(struct hnb_context *hnb, uint32_t rua_ctx_id,
bool is_ps,
struct hnbgw_cnlink *cn_if_new);
struct hnbgw_context_map *
context_map_by_cn(struct hnbgw_cnlink *cn, uint32_t scu_conn_id);
void context_map_deactivate(struct hnbgw_context_map *map);
int context_map_init(struct hnb_gw *gw);