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 void JoinRemote::message_epoint(unsigned int epoint_id, int message_type, union parameter *param)
  53 {
  54         /* if endpoint has just been removed, but still a message in the que */
  55         if (epoint_id != j_epoint_id)
  56                 return;
  57
  58         /* look for Remote's interface */
  59         if (admin_message_from_join(j_remote_id, j_serial, message_type, param)<0) {
  60                 PERROR("No socket with remote application '%s' found, this shall not happen. Closing socket shall cause release of all joins.\n", j_remote_name);
  61                 return;
  62         }
  63
  64         if (message_type == MESSAGE_RELEASE) {
  65                 delete this;
  66                 return;
  67         }
  68 }
  69
  70 void JoinRemote::message_remote(int message_type, union parameter *param)
  71 {
  72         struct lcr_msg *message;
  73
  74         /* create relation if no relation exists */
  75         if (!j_epoint_id) {
  76                 class Endpoint          *epoint;
  77
  78                 if (!(epoint = new Endpoint(0, j_serial)))
  79                         FATAL("No memory for Endpoint instance\n");
  80                 j_epoint_id = epoint->ep_serial;
  81                 if (!(epoint->ep_app = new DEFAULT_ENDPOINT_APP(epoint, 1))) // outgoing
  82                         FATAL("No memory for Endpoint Application instance\n");
  83         }
  84
  85         /* set serial on bchannel message
  86          * also ref is given, so we send message with ref */
  87         if (message_type == MESSAGE_BCHANNEL) {
  88                 message_bchannel_from_remote(this, param->bchannel.type, param->bchannel.handle);
  89                 return;
  90         }
  91
  92         /* cannot just forward, because param is not of container "struct lcr_msg" */
  93         message = message_create(j_serial, j_epoint_id, JOIN_TO_EPOINT, message_type);
  94         memcpy(&message->param, param, sizeof(message->param));
  95         message_put(message);
  96
  97         if (message_type == MESSAGE_RELEASE) {
  98                 delete this;
  99                 return;
 100         }
 101 }
 102
 103 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)
 104 {
 105         union parameter param;
 106
 107         memset(&param, 0, sizeof(union parameter));
 108         param.bchannel.type = type;
 109         param.bchannel.handle = handle;
 110         param.bchannel.tx_gain = tx_gain;
 111         param.bchannel.rx_gain = rx_gain;
 112         if (pipeline)
 113                 SCPY(param.bchannel.pipeline, pipeline);
 114         if (crypt_len)
 115                 memcpy(param.bchannel.crypt, crypt, crypt_len);
 116         param.bchannel.crypt_type = crypt_type;
 117         if (admin_message_from_join(remote_id, ref, MESSAGE_BCHANNEL, &param)<0) {
 118                 PERROR("No socket with remote id %d found, this happens, if the socket is closed before all bchannels are imported.\n", remote_id);
 119                 return;
 120         }
 121 }
 122
 123
 124