joinremote.cpp

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** Linux Call Router                                                         **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** join functions for remote application                                     **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13 //#define __u8 unsigned char
  14 //#define __u16 unsigned short
  15 //#define __u32 unsigned int
  16
  17
  18 /*
  19  * constructor for a new join
  20  * the join will have a relation to the calling endpoint
  21  */
  22 JoinRemote::JoinRemote(unsigned int serial, char *remote_name, int remote_id) : Join()
  23 {
  24         PDEBUG(DEBUG_JOIN, "Constructor(new join)");
  25         union parameter param;
  26
  27         SCPY(j_remote_name, remote_name);
  28         j_remote_id = remote_id;
  29         j_type = JOIN_TYPE_REMOTE;
  30
  31         j_epoint_id = serial; /* this is the endpoint, if created by epoint */
  32         if (j_epoint_id)
  33                 PDEBUG(DEBUG_JOIN, "New remote join connected to endpoint id %lu and application %s\n", j_epoint_id, remote_name);
  34
  35         /* send new ref to remote socket */
  36         memset(&param, 0, sizeof(union parameter));
  37         if (serial)
  38                 param.direction = 1; /* new ref from lcr */
  39         /* the j_serial is assigned by Join() parent. this is sent as new ref */
  40         if (admin_message_from_join(j_remote_id, j_serial, MESSAGE_NEWREF, &param)<0)
  41                 FATAL("No socket with remote application '%s' found, this shall not happen. because we already created one.\n", j_remote_name);
  42 }
  43
  44
  45 /*
  46  * join descructor
  47  */
  48 JoinRemote::~JoinRemote()
  49 {
  50 }
  51
  52
  53 /* join process is called from the main loop
  54  * it processes the current calling state.
  55  * returns 0 if join nothing was done
  56  */
  57 int JoinRemote::handler(void)
  58 {
  59         return(0);
  60 }
  61
  62
  63 void JoinRemote::message_epoint(unsigned int epoint_id, int message_type, union parameter *param)
  64 {
  65         /* if endpoint has just been removed, but still a message in the que */
  66         if (epoint_id != j_epoint_id)
  67                 return;
  68
  69         /* look for Remote's interface */
  70         if (admin_message_from_join(j_remote_id, j_serial, message_type, param)<0)
  71         {
  72                 PERROR("No socket with remote application '%s' found, this shall not happen. Closing socket shall cause release of all joins.\n", j_remote_name);
  73                 return;
  74         }
  75
  76         if (message_type == MESSAGE_RELEASE)
  77         {
  78                 delete this;
  79                 return;
  80         }
  81 }
  82
  83 void JoinRemote::message_remote(int message_type, union parameter *param)
  84 {
  85         struct lcr_msg *message;
  86
  87         /* create relation if no relation exists */
  88         if (!j_epoint_id)
  89         {
  90                 class Endpoint          *epoint;
  91
  92                 if (!(epoint = new Endpoint(0, j_serial)))
  93                         FATAL("No memory for Endpoint instance\n");
  94                 j_epoint_id = epoint->ep_serial;
  95                 if (!(epoint->ep_app = new DEFAULT_ENDPOINT_APP(epoint, 1))) // outgoing
  96                         FATAL("No memory for Endpoint Application instance\n");
  97         }
  98
  99         /* set serial on bchannel message
 100          * also ref is given, so we send message with ref */
 101         if (message_type == MESSAGE_BCHANNEL)
 102         {
 103                 message_bchannel_from_remote(this, param->bchannel.type, param->bchannel.handle);
 104                 return;
 105         }
 106
 107         /* cannot just forward, because param is not of container "struct lcr_msg" */
 108         message = message_create(j_serial, j_epoint_id, JOIN_TO_EPOINT, message_type);
 109         memcpy(&message->param, param, sizeof(message->param));
 110         message_put(message);
 111
 112         if (message_type == MESSAGE_RELEASE)
 113         {
 114                 delete this;
 115                 return;
 116         }
 117 }
 118
 119 void message_bchannel_to_remote(unsigned int remote_id, unsigned int ref, int type, unsigned int handle, int tx_gain, int rx_gain, char *pipeline, unsigned char *crypt, int crypt_len, int crypt_type)
 120 {
 121         union parameter param;
 122
 123         memset(&param, 0, sizeof(union parameter));
 124         param.bchannel.type = type;
 125         param.bchannel.handle = handle;
 126         param.bchannel.tx_gain = tx_gain;
 127         param.bchannel.rx_gain = rx_gain;
 128         if (pipeline)
 129                 SCPY(param.bchannel.pipeline, pipeline);
 130         if (crypt_len)
 131                 memcpy(param.bchannel.crypt, crypt, crypt_len);
 132         param.bchannel.crypt_type = crypt_type;
 133         if (admin_message_from_join(remote_id, ref, MESSAGE_BCHANNEL, &param)<0)
 134         {
 135                 PERROR("No socket with remote id %d found, this happens, if the socket is closed before all bchannels are imported.\n", remote_id);
 136                 return;
 137         }
 138 }
 139
 140
 141