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#ifndef _TRANSACT_H
#define _TRANSACT_H
#include <openbsc/gsm_data.h>
#include <openbsc/gsm_subscriber.h>
#include <osmocom/core/linuxlist.h>
#include <openbsc/gsm_04_11.h>
#include <openbsc/mncc.h>
#include <osmocom/gsm/gsm0411_smc.h>
#include <osmocom/gsm/gsm0411_smr.h>
enum bridge_state {
BRIDGE_STATE_NONE,
BRIDGE_STATE_LOOPBACK_PENDING,
BRIDGE_STATE_LOOPBACK_ESTABLISHED,
BRIDGE_STATE_BRIDGE_PENDING,
BRIDGE_STATE_BRIDGE_ESTABLISHED,
};
/* One transaction */
struct gsm_trans {
/* Entry in list of all transactions */
struct llist_head entry;
/* Back pointer to the network struct */
struct gsm_network *net;
/* The protocol within which we live */
uint8_t protocol;
/* The current transaction ID */
uint8_t transaction_id;
/* To whom we belong, unique identifier of remote MM entity */
struct vlr_subscr *vsub;
/* The associated connection we are using to transmit messages */
struct gsm_subscriber_connection *conn;
/* reference from MNCC or other application */
uint32_t callref;
/* if traffic channel receive was requested */
int tch_recv;
/* is thats one paging? */
struct subscr_request *paging_request;
/* bearer capabilities (rate and codec) */
struct gsm_mncc_bearer_cap bearer_cap;
union {
struct {
/* current call state */
int state;
/* current timer and message queue */
int Tcurrent; /* current CC timer */
int T308_second; /* used to send release again */
struct osmo_timer_list timer;
struct gsm_mncc msg; /* stores setup/disconnect/release message */
} cc;
struct {
struct gsm411_smc_inst smc_inst;
struct gsm411_smr_inst smr_inst;
struct gsm_sms *sms;
} sms;
};
struct {
struct gsm_trans *peer;
enum bridge_state state;
} bridge;
};
struct gsm_trans *trans_find_by_id(struct gsm_subscriber_connection *conn,
uint8_t proto, uint8_t trans_id);
struct gsm_trans *trans_find_by_callref(struct gsm_network *net,
uint32_t callref);
struct gsm_trans *trans_alloc(struct gsm_network *net,
struct vlr_subscr *vsub,
uint8_t protocol, uint8_t trans_id,
uint32_t callref);
void trans_free(struct gsm_trans *trans);
int trans_assign_trans_id(struct gsm_network *net, struct vlr_subscr *vsub,
uint8_t protocol, uint8_t ti_flag);
struct gsm_trans *trans_has_conn(const struct gsm_subscriber_connection *conn);
void trans_conn_closed(struct gsm_subscriber_connection *conn);
#endif
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