142 lines
5.1 KiB
C
142 lines
5.1 KiB
C
/*****************************************************************************\
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** **
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** Linux Call Router **
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** **
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**---------------------------------------------------------------------------**
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** Copyright: Andreas Eversberg **
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** **
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** Asterisk socket client header **
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** **
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\*****************************************************************************/
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struct chan_call {
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struct chan_call *next; /* link to next call instance */
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int state; /* current call state CHAN_LCR_STATE */
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unsigned int ref; /* callref for this channel */
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int ref_was_assigned;
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void *ast; /* current asterisk channel */
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int pbx_started;
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/* indicates if pbx que is available */
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int audiopath;
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/* audio is available */
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int cause, location;
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/* store cause from lcr */
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char dialque[64];
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/* queue dialing prior setup ack */
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char oad[64];/* caller id in number format */
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struct caller_info callerinfo;
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struct redir_info redirinfo;
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struct connect_info connectinfo;
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/* store connectinfo form lcr */
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int bridge_id;
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/* current ID or 0 */
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struct chan_call *bridge_call;
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/* remote instance or NULL */
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int pipe[2];
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/* pipe for receive data */
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unsigned char read_buff[1024];
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/* read buffer for frame */
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struct ast_frame read_fr;
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/* frame for read */
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char interface[32];
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/* LCR interface name for setup */
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char dialstring[64];
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/* cached dial string for setup */
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#ifndef AST_PARTY_CALLER
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char cid_num[64]; /* cached cid for setup */
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char cid_name[64]; /* cached cid for setup */
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char cid_rdnis[64]; /* cached cid for setup */
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#endif
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char display[128];
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/* display for setup */
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int dsp_dtmf;
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/* decode dtmf by dsp */
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int inband_dtmf; /* generate dtmf tones, if
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requested by asterisk */
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int rebuffer; /* send only 160 bytes frames
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to asterisk */
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int framepos; /* send only 160 bytes frames to asterisk */
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int on_hold; /* track hold management, since
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sip phones sometimes screw it up */
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char pipeline[256];
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/* echo cancel pipeline by option */
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int tx_gain, rx_gain;
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/* gain by option */
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int keypad;
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/* use keypad to dial number */
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unsigned char bf_key[56];
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int bf_len; /* blowfish crypt key */
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struct ast_dsp *dsp; /* ast dsp processor for fax/tone detection */
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struct ast_trans_pvt *trans; /* Codec translation path as fax/tone detection requires slin */
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int tx_queue, hdlc, faxdetect, ast_dsp;
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/* flags for bchannel mode */
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char queue_string[64];
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/* queue for asterisk */
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int has_pattern;
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/* pattern are available, PROGRESS has been indicated */
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};
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enum {
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CHAN_LCR_STATE_IN_PREPARE = 0,
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CHAN_LCR_STATE_IN_SETUP,
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CHAN_LCR_STATE_IN_DIALING,
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CHAN_LCR_STATE_IN_PROCEEDING,
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CHAN_LCR_STATE_IN_ALERTING,
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CHAN_LCR_STATE_OUT_PREPARE,
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CHAN_LCR_STATE_OUT_SETUP,
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CHAN_LCR_STATE_OUT_DIALING,
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CHAN_LCR_STATE_OUT_PROCEEDING,
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CHAN_LCR_STATE_OUT_ALERTING,
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CHAN_LCR_STATE_CONNECT,
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CHAN_LCR_STATE_IN_DISCONNECT,
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CHAN_LCR_STATE_OUT_DISCONNECT,
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CHAN_LCR_STATE_RELEASE,
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};
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#define CHAN_LCR_STATE static const struct chan_lcr_state { \
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char *name; \
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char *meaning; \
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} chan_lcr_state[] = { \
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{ "IN_PREPARE", \
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"New call from ISDN is waiting for setup." }, \
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{ "IN_SETUP", \
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"Call from ISDN is currently set up." }, \
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{ "IN_DIALING", \
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"Call from ISDN is currently waiting for digits to be dialed." }, \
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{ "IN_PROCEEDING", \
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"Call from ISDN is complete and proceeds to ring." }, \
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{ "IN_ALERTING", \
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"Call from ISDN is ringing." }, \
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{ "OUT_PREPARE", \
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"New call to ISDN is wating for setup." }, \
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{ "OUT_SETUP", \
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"Call to ISDN is currently set up." }, \
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{ "OUT_DIALING", \
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"Call to ISDN is currently waiting for digits to be dialed." }, \
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{ "OUT_PROCEEDING", \
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"Call to ISDN is complete and proceeds to ring." }, \
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{ "OUT_ALERTING", \
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"Call to ISDN is ringing." }, \
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{ "CONNECT", \
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"Call has been answered." }, \
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{ "IN_DISCONNECT", \
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"Call has been hung up on ISDN side." }, \
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{ "OUT_DISCONNECT", \
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"Call has been hung up on Asterisk side." }, \
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{ "RELEASE", \
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"Call is waiting for complete release." }, \
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};
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#define SOCKET_RETRY_TIMER 5
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#define CERROR(call, ast, arg...) chan_lcr_log(__LOG_ERROR, __FILE__, __LINE__, __FUNCTION__, call, ast, ##arg)
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#define CDEBUG(call, ast, arg...) chan_lcr_log(__LOG_NOTICE, __FILE__, __LINE__, __FUNCTION__, call, ast, ##arg)
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void chan_lcr_log(int type, const char *file, int line, const char *function, struct chan_call *call, struct ast_channel *ast, const char *fmt, ...);
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extern unsigned char flip_bits[256];
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void lcr_in_dtmf(struct chan_call *call, int val);
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