chan_lcr.h

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** Linux Call Router                                                         **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** Asterisk socket client header                                             **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 /* structure for all calls */
  13 struct bchannel;
  14 struct chan_call {
  15         struct chan_call        *next;  /* link to next call instance */
  16         int                     state;  /* current call state CHAN_LCR_STATE */
  17         unsigned int            ref;    /* callref for this channel */
  18         int                     ref_was_assigned;
  19         void                    *ast;   /* current asterisk channel */
  20         int                     pbx_started;
  21                                         /* indicates if pbx que is available */
  22         struct bchannel         *bchannel;
  23                                         /* reference to bchannel, if set */
  24         int                     audiopath;
  25                                         /* audio is available */
  26         int                     cause, location;
  27                                         /* store cause from lcr */
  28         char                    dialque[64];
  29                                         /* queue dialing prior setup ack */
  30         char                    oad[64];/* caller id in number format */
  31
  32         struct connect_info     connectinfo;
  33                                         /* store connectinfo form lcr */
  34         int                     bridge_id;
  35                                         /* current ID or 0 */
  36         struct chan_call        *bridge_call;
  37                                         /* remote instance or NULL */
  38         int                     pipe[2];
  39                                         /* pipe for receive data */
  40         unsigned char           read_buff[1024];
  41                                         /* read buffer for frame */
  42         struct ast_frame        read_fr;
  43                                         /* frame for read */
  44         char                    interface[32];
  45                                         /* LCR interface name for setup */
  46         char                    dialstring[64];
  47                                         /* cached dial string for setup */
  48         char                    cid_num[64]; /* cached cid for setup */
  49         char                    cid_name[64]; /* cached cid for setup */
  50         char                    cid_rdnis[64]; /* cached cid for setup */
  51         char                    display[128];
  52                                         /* display for setup */
  53         int                     dtmf;
  54                                         /* shall dtmf be enabled */
  55         int                     no_dtmf;
  56                                         /* dtmf disabled by option */
  57         int                     inband_dtmf; /* generate dtmf tones, if
  58                                               requested by asterisk */
  59         int                     rebuffer; /* send only 160 bytes frames
  60                                              to asterisk */
  61         int                     on_hold; /* track hold management, since
  62                                             sip phones sometimes screw it up */
  63         char                    pipeline[256];
  64                                         /* echo cancel pipeline by option */
  65         int                     tx_gain, rx_gain;
  66                                         /* gain by option */
  67         unsigned char           bf_key[56];
  68         int                     bf_len; /* blowfish crypt key */
  69         int                     nodsp, hdlc;
  70                                         /* flags for bchannel mode */
  71         char                    queue_string[64];
  72                                         /* queue for asterisk */
  73
  74 };
  75
  76 enum {
  77         CHAN_LCR_STATE_IN_PREPARE = 0,
  78         CHAN_LCR_STATE_IN_SETUP,
  79         CHAN_LCR_STATE_IN_DIALING,
  80         CHAN_LCR_STATE_IN_PROCEEDING,
  81         CHAN_LCR_STATE_IN_ALERTING,
  82         CHAN_LCR_STATE_OUT_PREPARE,
  83         CHAN_LCR_STATE_OUT_SETUP,
  84         CHAN_LCR_STATE_OUT_DIALING,
  85         CHAN_LCR_STATE_OUT_PROCEEDING,
  86         CHAN_LCR_STATE_OUT_ALERTING,
  87         CHAN_LCR_STATE_CONNECT,
  88         CHAN_LCR_STATE_IN_DISCONNECT,
  89         CHAN_LCR_STATE_OUT_DISCONNECT,
  90         CHAN_LCR_STATE_RELEASE,
  91 };
  92
  93 #define CHAN_LCR_STATE static const struct chan_lcr_state { \
  94         char *name; \
  95         char *meaning; \
  96 } chan_lcr_state[] = { \
  97         { "IN_PREPARE", \
  98           "New call from ISDN is waiting for setup." }, \
  99         { "IN_SETUP", \
 100           "Call from ISDN is currently set up." }, \
 101         { "IN_DIALING", \
 102           "Call from ISDN is currently waiting for digits to be dialed." }, \
 103         { "IN_PROCEEDING", \
 104           "Call from ISDN is complete and proceeds to ring." }, \
 105         { "IN_ALERTING", \
 106           "Call from ISDN is ringing." }, \
 107         { "OUT_PREPARE", \
 108           "New call to ISDN is wating for setup." }, \
 109         { "OUT_SETUP", \
 110           "Call to ISDN is currently set up." }, \
 111         { "OUT_DIALING", \
 112           "Call to ISDN is currently waiting for digits to be dialed." }, \
 113         { "OUT_PROCEEDING", \
 114           "Call to ISDN is complete and proceeds to ring." }, \
 115         { "OUT_ALERTING", \
 116           "Call to ISDN is ringing." }, \
 117         { "CONNECT", \
 118           "Call has been answered." }, \
 119         { "IN_DISCONNECT", \
 120           "Call has been hung up on ISDN side." }, \
 121         { "OUT_DISCONNECT", \
 122           "Call has been hung up on Asterisk side." }, \
 123         { "RELEASE", \
 124           "Call is waiting for complete release." }, \
 125 };
 126
 127
 128 #define CERROR(call, ast, arg...) chan_lcr_log(__LOG_ERROR, __FILE__, __LINE__,  __FUNCTION__, call, ast, ##arg)
 129 #define CDEBUG(call, ast, arg...) chan_lcr_log(__LOG_NOTICE, __FILE__, __LINE__,  __FUNCTION__, call, ast, ##arg)
 130 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, ...);
 131 extern unsigned char flip_bits[256];
 132 void lcr_in_dtmf(struct chan_call *call, int val);