remote.cpp

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** LCR                                                                       **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** mISDN remote                                                              **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13
  14 unsigned int new_remote = 1000;
  15
  16 /*
  17  * constructor
  18  */
  19 Premote::Premote(int type, char *portname, struct port_settings *settings, struct interface *interface, int remote_id) : Port(type, portname, settings, interface)
  20 {
  21         union parameter param;
  22
  23         p_callerinfo.itype = (interface->extension)?INFO_ITYPE_ISDN_EXTENSION:INFO_ITYPE_ISDN;
  24         p_r_ref = new_remote++;
  25         SCPY(p_r_remote_app, interface->remote_app);
  26         p_r_tones = (interface->is_tones == IS_YES);
  27
  28         /* send new ref to remote socket */
  29         memset(&param, 0, sizeof(union parameter));
  30         if (type == PORT_TYPE_REMOTE_OUT)
  31                 param.newref.direction = 1; /* new ref from lcr */
  32         p_r_remote_id = remote_id;
  33         if (admin_message_from_lcr(p_r_remote_id, p_r_ref, MESSAGE_NEWREF, &param) < 0)
  34                 FATAL("No socket with remote application '%s' found, this shall not happen. because we already created one.\n", p_r_remote_app);
  35
  36         PDEBUG(DEBUG_PORT, "Created new RemotePort(%s).\n", portname);
  37
  38 }
  39
  40 /*
  41  * destructor
  42  */
  43 Premote::~Premote()
  44 {
  45         PDEBUG(DEBUG_PORT, "Destroyed Remote process(%s).\n", p_name);
  46 }
  47
  48 /*
  49  * endpoint sends messages to the port
  50  */
  51 int Premote::message_epoint(unsigned int epoint_id, int message_type, union parameter *param)
  52 {
  53         struct epoint_list *epointlist;
  54
  55         if (Port::message_epoint(epoint_id, message_type, param))
  56                 return 1;
  57
  58         switch (message_type) {
  59         case MESSAGE_SETUP:
  60                 struct interface *interface;
  61                 interface = getinterfacebyname(p_interface_name);
  62                 if (!interface) {
  63                         PERROR("Cannot find interface %s.\n", p_interface_name);
  64                         return 0;
  65                 }
  66                 /* attach only if not already */
  67                 epointlist = p_epointlist;
  68                 while(epointlist) {
  69                         if (epointlist->epoint_id == epoint_id)
  70                                 break;
  71                         epointlist = epointlist->next;
  72                 }
  73                 if (!epointlist)
  74                         epointlist_new(epoint_id);
  75
  76                 /* set context to pbx */
  77                 if (!param->setup.dialinginfo.context[0]) {
  78                         if (interface->remote_context[0])
  79                                 SCPY(param->setup.dialinginfo.context, interface->remote_context);
  80                         else
  81                                 SCPY(param->setup.dialinginfo.context, "lcr");
  82                 }
  83                 memcpy(&p_dialinginfo, &param->setup.dialinginfo, sizeof(p_dialinginfo));
  84                 memcpy(&p_capainfo, &param->setup.capainfo, sizeof(p_capainfo));
  85                 memcpy(&p_callerinfo, &param->setup.callerinfo, sizeof(p_callerinfo));
  86                 memcpy(&p_redirinfo, &param->setup.redirinfo, sizeof(p_redirinfo));
  87                 /* screen */
  88                 do_screen(1, p_callerinfo.id, sizeof(p_callerinfo.id), &p_callerinfo.ntype, &p_callerinfo.present, p_interface_name);
  89                 do_screen(1, p_callerinfo.id2, sizeof(p_callerinfo.id2), &p_callerinfo.ntype2, &p_callerinfo.present2, p_interface_name);
  90                 do_screen(1, p_redirinfo.id, sizeof(p_redirinfo.id), &p_redirinfo.ntype, &p_redirinfo.present, p_interface_name);
  91                 memcpy(&param->setup.callerinfo, &p_callerinfo, sizeof(p_callerinfo));
  92                 memcpy(&param->setup.redirinfo, &p_redirinfo, sizeof(p_redirinfo));
  93
  94                 new_state(PORT_STATE_OUT_SETUP);
  95                 break;
  96
  97         case MESSAGE_PROCEEDING:
  98                 new_state(PORT_STATE_IN_PROCEEDING);
  99                 break;
 100
 101         case MESSAGE_ALERTING:
 102                 new_state(PORT_STATE_IN_ALERTING);
 103                 break;
 104
 105         case MESSAGE_CONNECT:
 106                 memcpy(&p_connectinfo, &param->connectinfo, sizeof(p_connectinfo));
 107                 new_state(PORT_STATE_CONNECT);
 108                 break;
 109
 110         case MESSAGE_DISCONNECT:
 111                 new_state(PORT_STATE_OUT_DISCONNECT);
 112                 break;
 113
 114         case MESSAGE_RELEASE:
 115                 new_state(PORT_STATE_RELEASE);
 116                 break;
 117         }
 118
 119         /* look for Remote's interface */
 120         if (admin_message_from_lcr(p_r_remote_id, p_r_ref, message_type, param)<0) {
 121                 PERROR("No socket with remote application '%s' found, this shall not happen. Closing socket shall cause release of all remote ports.\n", p_r_remote_app);
 122                 return 0;
 123         }
 124
 125         if (message_type == MESSAGE_RELEASE) {
 126                 new_state(PORT_STATE_RELEASE);
 127                 delete this;
 128                 return 0;
 129         }
 130
 131         return 0;
 132 }
 133
 134 void Premote::message_remote(int message_type, union parameter *param)
 135 {
 136         class Endpoint *epoint;
 137         struct lcr_msg *message;
 138         struct interface *interface;
 139
 140         switch (message_type) {
 141         case MESSAGE_TRAFFIC:
 142                 bridge_tx(param->traffic.data, param->traffic.len);
 143                 if (p_tone_name[0]) {
 144                         read_audio(param->traffic.data, param->traffic.len);
 145                         admin_message_from_lcr(p_r_remote_id, p_r_ref, MESSAGE_TRAFFIC, param);
 146                 }
 147                 return;
 148
 149         case MESSAGE_SETUP:
 150                 interface = getinterfacebyname(p_interface_name);
 151                 if (!interface) {
 152                         PERROR("Cannot find interface %s.\n", p_interface_name);
 153                         return;
 154                 }
 155
 156                 /* enable audio path */
 157                 if (interface->is_tones == IS_YES) {
 158                         union parameter newparam;
 159                         memset(&newparam, 0, sizeof(union parameter));
 160                         admin_message_from_lcr(p_r_remote_id, p_r_ref, MESSAGE_PATTERN, &newparam);
 161                         newparam.audiopath = 1;
 162                         admin_message_from_lcr(p_r_remote_id, p_r_ref, MESSAGE_AUDIOPATH, &newparam);
 163                 }
 164
 165                 /* set source interface */
 166                 param->setup.callerinfo.itype = p_callerinfo.itype;
 167                 SCPY(param->setup.callerinfo.interface, interface->name);
 168
 169                 /* create endpoint */
 170                 if (p_epointlist)
 171                         FATAL("Incoming call but already got an endpoint.\n");
 172                 if (!(epoint = new Endpoint(p_serial, 0)))
 173                         FATAL("No memory for Endpoint instance\n");
 174                 epoint->ep_app = new_endpointapp(epoint, 0, interface->app); //incoming
 175
 176                 epointlist_new(epoint->ep_serial);
 177
 178                 memcpy(&p_dialinginfo, &param->setup.dialinginfo, sizeof(p_dialinginfo));
 179                 memcpy(&p_capainfo, &param->setup.capainfo, sizeof(p_capainfo));
 180                 memcpy(&p_callerinfo, &param->setup.callerinfo, sizeof(p_callerinfo));
 181                 memcpy(&p_redirinfo, &param->setup.redirinfo, sizeof(p_redirinfo));
 182
 183                 new_state(PORT_STATE_IN_SETUP);
 184                 break;
 185
 186         case MESSAGE_PROCEEDING:
 187                 new_state(PORT_STATE_OUT_PROCEEDING);
 188                 break;
 189
 190         case MESSAGE_ALERTING:
 191                 new_state(PORT_STATE_OUT_ALERTING);
 192                 break;
 193
 194         case MESSAGE_CONNECT:
 195                 memcpy(&p_connectinfo, &param->connectinfo, sizeof(p_connectinfo));
 196                 new_state(PORT_STATE_CONNECT);
 197                 break;
 198
 199         case MESSAGE_DISCONNECT:
 200                 new_state(PORT_STATE_IN_DISCONNECT);
 201                 break;
 202
 203         case MESSAGE_RELEASE:
 204                 new_state(PORT_STATE_RELEASE);
 205                 break;
 206         }
 207
 208         /* cannot just forward, because param is not of container "struct lcr_msg" */
 209         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, message_type);
 210         memcpy(&message->param, param, sizeof(message->param));
 211         message_put(message);
 212
 213         if (message_type == MESSAGE_RELEASE) {
 214                 new_state(PORT_STATE_RELEASE);
 215                 delete this;
 216                 return;
 217         }
 218 }
 219
 220 /* receive from remote Port instance */
 221 int Premote::bridge_rx(unsigned char *data, int len)
 222 {
 223         union parameter newparam;
 224         int l;
 225
 226         /* don't send tones, if not enabled or not connected */
 227         if (!p_r_tones
 228          && p_state != PORT_STATE_CONNECT)
 229                 return 0;
 230
 231         if (p_tone_name[0])
 232                 return 0;
 233
 234         memset(&newparam, 0, sizeof(union parameter));
 235         /* split, if exeeds data size */
 236         while(len) {
 237                 l = (len > (int)sizeof(newparam.traffic.data)) ? sizeof(newparam.traffic.data) : len;
 238                 newparam.traffic.len = l;
 239                 len -= l;
 240                 memcpy(newparam.traffic.data, data, l);
 241                 data += l;
 242                 admin_message_from_lcr(p_r_remote_id, p_r_ref, MESSAGE_TRAFFIC, &newparam);
 243         }
 244
 245         return 0;
 246 }
 247
 248