extern int new_callref; struct gsm_conf { char debug[128]; /* debug info */ char interface_bsc[64]; /* loopback interface BSC side */ char interface_lcr[64]; /* loopback interface LCR side */ char openbsc_cfg[128]; /* openbsc config file */ char short_name[64]; /* short network name */ char long_name[64]; /* long network name */ char hlr[64]; /* database name */ int allow_all; /* accept unknown subscribers */ int keep_l2; /* keep layer 2 after exit */ char pcapfile[128]; /* open capture file for BS11 links */ int reject_cause; /* reject cause for unsubcribed IMSIs */ }; struct lcr_gsm { void *network; /* OpenBSC network handle */ struct gsm_conf conf; /* gsm.conf options */ int gsm_sock; /* loopback interface GSM side */ int gsm_port; /* loopback interface port number */ }; extern struct lcr_gsm *gsm; /* GSM port class */ class Pgsm : public PmISDN { public: Pgsm(int type, struct mISDNport *mISDNport, char *portname, struct port_settings *settings, int channel, int exclusive, int mode); ~Pgsm(); void *p_m_g_instance; /* pointer to network/ms instance */ unsigned int p_m_g_callref; /* ref by OpenBSC/Osmocom-BB */ struct lcr_work p_m_g_delete; /* timer for audio transmission */ unsigned int p_m_g_mode; /* data/transparent mode */ int p_m_g_gsm_b_sock; /* gsm bchannel socket */ struct lcr_fd p_m_g_gsm_b_fd; /* event node */ int p_m_g_gsm_b_index; /* gsm bchannel socket index to use */ int p_m_g_gsm_b_active; /* gsm bchannel socket is activated */ struct lcr_msg *p_m_g_notify_pending; /* queue for NOTIFY if not connected */ void *p_m_g_encoder, *p_m_g_decoder; /* gsm handle */ signed short p_m_g_rxdata[160]; /* receive audio buffer */ int p_m_g_rxpos; /* position in audio buffer 0..159 */ int p_m_g_tch_connected; /* indicates if audio is connected */ void bchannel_close(void); int bchannel_open(int index); void bchannel_receive(struct mISDNhead *hh, unsigned char *data, int len); void bchannel_send(unsigned int prim, unsigned int id, unsigned char *data, int len); void frame_send(void *_frame); void frame_receive(void *_frame); int hunt_bchannel(void); void call_conf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *gsm); void alert_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc); void setup_cnf(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc); void setup_compl_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc); void disc_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc); void rel_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc); void notify_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc); void message_notify(unsigned int epoint_id, int message_id, union parameter *param); void message_alerting(unsigned int epoint_id, int message_id, union parameter *param); void message_connect(unsigned int epoint_id, int message_id, union parameter *param); void message_disconnect(unsigned int epoint_id, int message_id, union parameter *param); void message_release(unsigned int epoint_id, int message_id, union parameter *param); int message_epoint(unsigned int epoint_id, int message_id, union parameter *param); }; struct gsm_mncc *create_mncc(int msg_type, unsigned int callref); int send_and_free_mncc(void *instance, unsigned int msg_type, void *data); void gsm_trace_header(struct mISDNport *mISDNport, class PmISDN *port, unsigned int msg_type, int direction); int handle_gsm(void); int gsm_conf(struct gsm_conf *gsm_conf, char *conf_error); int gsm_exit(int rc); int gsm_init(void);