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