102 lines
4.5 KiB
C++
102 lines
4.5 KiB
C++
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#include <sys/un.h>
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extern int new_callref;
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struct mncc_q_entry {
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struct mncc_q_entry *next;
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unsigned int len;
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char data[0]; /* struct gsm_mncc */
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};
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enum {
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LCR_GSM_TYPE_NETWORK,
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LCR_GSM_TYPE_MS,
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};
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struct lcr_gsm {
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char interface_name[64]; /* name of interface this instance is associated to */
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struct lcr_gsm *gsm_next; /* list of MS/BS instances */
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char name[16]; /* name of MS/BS instance */
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int type; /* LCR_GSM_TYPE_*/
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struct lcr_fd mncc_lfd; /* Unix domain socket to OpenBSC MNCC */
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struct mncc_q_entry *mncc_q_hd;
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struct mncc_q_entry *mncc_q_tail;
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struct lcr_timer socket_retry; /* Timer to re-try connecting to BSC socket */
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struct sockaddr_un sun; /* Socket address of MNCC socket */
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};
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/* GSM port class */
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class Pgsm : public Port
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{
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public:
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Pgsm(int type, char *portname, struct port_settings *settings, struct interface *interface);
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~Pgsm();
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signed short p_g_samples[160]; /* last received audi packet */
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int p_g_tones; /* set, if tones are to be generated */
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int p_g_earlyb; /* set, if patterns are available */
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struct lcr_gsm *p_g_lcr_gsm; /* pointer to network/ms instance */
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unsigned int p_g_callref; /* ref by OpenBSC/Osmocom-BB */
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struct lcr_work p_g_delete; /* queue destruction of GSM port instance */
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unsigned int p_g_mode; /* data/transparent mode */
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int p_g_gsm_b_sock; /* gsm bchannel socket */
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struct lcr_fd p_g_gsm_b_fd; /* event node */
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int p_g_gsm_b_index; /* gsm bchannel socket index to use */
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int p_g_gsm_b_active; /* gsm bchannel socket is activated */
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struct lcr_msg *p_g_notify_pending; /* queue for NOTIFY if not connected */
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struct lcr_msg *p_g_setup_pending; /* queue SETUP until RTP is created */
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struct lcr_msg *p_g_connect_pending; /* queue CONNECT until RTP is created and connected */
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void *p_g_fr_encoder, *p_g_fr_decoder; /* gsm handle */
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void *p_g_hr_encoder, *p_g_hr_decoder; /* gsm handle */
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void *p_g_amr_encoder, *p_g_amr_decoder;/* gsm handle */
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int p_g_amr_cmr, p_g_amr_cmr_valid;
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signed short p_g_rxdata[160]; /* receive audio buffer */
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int p_g_rxpos; /* position in audio buffer 0..159 */
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int p_g_tch_connected; /* indicates if audio is connected */
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int p_g_media_type; /* current payload type or 0 if not set */
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int p_g_payload_type; /* current payload type */
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int p_g_rtp_bridge; /* if we use a bridge */
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unsigned int p_g_rtp_ip_remote; /* stores ip */
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unsigned short p_g_rtp_port_remote; /* stores port */
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int p_g_rtp_payloads;
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int p_g_rtp_media_types[8];
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unsigned char p_g_rtp_payload_types[8];
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void frame_send(void *_frame, int len, int msg_type);
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void frame_receive(void *_frame);
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int audio_send(unsigned char *data, int len);
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int bridge_rx(unsigned char *data, int len);
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void send_mncc_rtp_connect(void);
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int hunt_bchannel(void);
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void modify_lchan(int media_type);
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void call_proc_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
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void alert_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
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void setup_cnf(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
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void setup_compl_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
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void disc_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
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void rel_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
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void notify_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
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void rtp_create_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
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void rtp_connect_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
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void message_notify(unsigned int epoint_id, int message_id, union parameter *param);
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void message_progress(unsigned int epoint_id, int message_id, union parameter *param);
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void message_alerting(unsigned int epoint_id, int message_id, union parameter *param);
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void message_connect(unsigned int epoint_id, int message_id, union parameter *param);
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void message_disconnect(unsigned int epoint_id, int message_id, union parameter *param);
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void message_release(unsigned int epoint_id, int message_id, union parameter *param);
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int message_epoint(unsigned int epoint_id, int message_id, union parameter *param);
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};
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struct gsm_mncc *create_mncc(int msg_type, unsigned int callref);
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int send_and_free_mncc(struct lcr_gsm *lcr_gsm, unsigned int msg_type, void *data);
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void gsm_trace_header(const char *interface_name, class Pgsm *port, unsigned int msg_type, int direction);
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int gsm_conf(struct gsm_conf *gsm_conf, char *conf_error);
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int gsm_exit(int rc);
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int gsm_init(void);
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int mncc_socket_retry_cb(struct lcr_timer *timer, void *inst, int index);
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