gsm_bs.cpp

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** LCR                                                                       **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** mISDN gsm (BS mode)                                                       **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13 #include "mncc.h"
  14
  15 struct lcr_gsm *gsm_bs = NULL;
  16
  17 /*
  18  * DTMF stuff
  19  */
  20 unsigned char dtmf_samples[16][8000];
  21 static int dtmf_x[4] = { 1209, 1336, 1477, 1633 };
  22 static int dtmf_y[4] = { 697, 770, 852, 941 };
  23
  24 void generate_dtmf(void)
  25 {
  26         double fx, fy, sample;
  27         int i, x, y;
  28         unsigned char *law;
  29
  30         for (y = 0; y < 4; y++) {
  31                 fy = 2 * 3.1415927 * ((double)dtmf_y[y]) / 8000.0;
  32                 for (x = 0; x < 4; x++) {
  33                         fx = 2 * 3.1415927 * ((double)dtmf_x[x]) / 8000.0;
  34                         law = dtmf_samples[y << 2 | x];
  35                         for (i = 0; i < 8000; i++) {
  36                                 sample = sin(fy * ((double)i)) * 0.251 * 32767.0; /* -6 dB */
  37                                 sample += sin(fx * ((double)i)) * 0.158 * 32767.0; /* -8 dB */
  38                                 *law++ = audio_s16_to_law[(int)sample & 0xffff];
  39                         }
  40                 }
  41         }
  42 }
  43
  44
  45 /*
  46  * constructor
  47  */
  48 Pgsm_bs::Pgsm_bs(int type, char *portname, struct port_settings *settings, struct interface *interface) : Pgsm(type, portname, settings, interface)
  49 {
  50         p_g_lcr_gsm = gsm_bs;
  51         p_g_dtmf = NULL;
  52         p_g_dtmf_index = 0;
  53
  54         PDEBUG(DEBUG_GSM, "Created new GSMBSPort(%s).\n", portname);
  55 }
  56
  57 /*
  58  * destructor
  59  */
  60 Pgsm_bs::~Pgsm_bs()
  61 {
  62         PDEBUG(DEBUG_GSM, "Destroyed GSM BS process(%s).\n", p_name);
  63 }
  64
  65 /* DTMF INDICATION */
  66 void Pgsm_bs::start_dtmf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
  67 {
  68         struct gsm_mncc *resp;
  69
  70         gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
  71         add_trace("keypad", NULL, "%c", mncc->keypad);
  72         end_trace();
  73         SPRINT(p_dialinginfo.id, "%c", mncc->keypad);
  74         p_dialinginfo.ntype = INFO_NTYPE_UNKNOWN;
  75
  76         /* send resp */
  77         gsm_trace_header(p_g_interface_name, this, MNCC_START_DTMF_RSP, DIRECTION_OUT);
  78         add_trace("keypad", NULL, "%c", mncc->keypad);
  79         end_trace();
  80         resp = create_mncc(MNCC_START_DTMF_RSP, p_g_callref);
  81         resp->fields |= MNCC_F_KEYPAD;
  82         resp->keypad = mncc->keypad;
  83         send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
  84
  85         if (p_g_rtp_bridge) {
  86                 class Port *remote = bridge_remote();
  87
  88                 if (remote) {
  89                         struct lcr_msg *message;
  90
  91                         /* send dtmf information, because we bridge RTP directly */
  92                         message = message_create(0, remote->p_serial, EPOINT_TO_PORT, MESSAGE_DTMF);
  93                         message->param.dtmf = mncc->keypad;
  94                         message_put(message);
  95                 }
  96         } else {
  97                 /* generate DTMF tones, since we do audio forwarding inside LCR */
  98                 switch (mncc->keypad) {
  99                         case '1': p_g_dtmf = dtmf_samples[0]; break;
 100                         case '2': p_g_dtmf = dtmf_samples[1]; break;
 101                         case '3': p_g_dtmf = dtmf_samples[2]; break;
 102                         case 'a':
 103                         case 'A': p_g_dtmf = dtmf_samples[3]; break;
 104                         case '4': p_g_dtmf = dtmf_samples[4]; break;
 105                         case '5': p_g_dtmf = dtmf_samples[5]; break;
 106                         case '6': p_g_dtmf = dtmf_samples[6]; break;
 107                         case 'b':
 108                         case 'B': p_g_dtmf = dtmf_samples[7]; break;
 109                         case '7': p_g_dtmf = dtmf_samples[8]; break;
 110                         case '8': p_g_dtmf = dtmf_samples[9]; break;
 111                         case '9': p_g_dtmf = dtmf_samples[10]; break;
 112                         case 'c':
 113                         case 'C': p_g_dtmf = dtmf_samples[11]; break;
 114                         case '*': p_g_dtmf = dtmf_samples[12]; break;
 115                         case '0': p_g_dtmf = dtmf_samples[13]; break;
 116                         case '#': p_g_dtmf = dtmf_samples[14]; break;
 117                         case 'd':
 118                         case 'D': p_g_dtmf = dtmf_samples[15]; break;
 119                 }
 120                 p_g_dtmf_index = 0;
 121         }
 122 }
 123 void Pgsm_bs::stop_dtmf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
 124 {
 125         struct gsm_mncc *resp;
 126
 127         gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
 128         add_trace("keypad", NULL, "%c", mncc->keypad);
 129         end_trace();
 130
 131         /* send resp */
 132         gsm_trace_header(p_g_interface_name, this, MNCC_STOP_DTMF_RSP, DIRECTION_OUT);
 133         add_trace("keypad", NULL, "%c", mncc->keypad);
 134         end_trace();
 135         resp = create_mncc(MNCC_STOP_DTMF_RSP, p_g_callref);
 136         resp->keypad = mncc->keypad;
 137         send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
 138
 139         /* stop DTMF */
 140         p_g_dtmf = NULL;
 141 }
 142
 143 /* HOLD INDICATION */
 144 void Pgsm_bs::hold_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
 145 {
 146         struct lcr_msg *message;
 147         struct gsm_mncc *resp, *frame;
 148
 149         gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
 150         end_trace();
 151
 152         /* notify the hold of call */
 153         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_NOTIFY);
 154         message->param.notifyinfo.notify = INFO_NOTIFY_REMOTE_HOLD;
 155         message->param.notifyinfo.local = 1; /* call is held by supplementary service */
 156         message_put(message);
 157
 158         /* acknowledge hold */
 159         gsm_trace_header(p_g_interface_name, this, MNCC_HOLD_CNF, DIRECTION_OUT);
 160         end_trace();
 161         resp = create_mncc(MNCC_HOLD_CNF, p_g_callref);
 162         send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
 163
 164         /* disable audio */
 165         if (p_g_tch_connected) { /* it should be true */
 166                 gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_DROP, DIRECTION_OUT);
 167                 end_trace();
 168                 frame = create_mncc(MNCC_FRAME_DROP, p_g_callref);
 169                 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
 170                 p_g_tch_connected = 0;
 171         }
 172 }
 173
 174
 175 /* RETRIEVE INDICATION */
 176 void Pgsm_bs::retr_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
 177 {
 178         struct lcr_msg *message;
 179         struct gsm_mncc *resp, *frame;
 180
 181         gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
 182         end_trace();
 183
 184         /* notify the retrieve of call */
 185         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_NOTIFY);
 186         message->param.notifyinfo.notify = INFO_NOTIFY_REMOTE_RETRIEVAL;
 187         message->param.notifyinfo.local = 1; /* call is retrieved by supplementary service */
 188         message_put(message);
 189
 190         /* acknowledge retr */
 191         gsm_trace_header(p_g_interface_name, this, MNCC_RETRIEVE_CNF, DIRECTION_OUT);
 192         end_trace();
 193         resp = create_mncc(MNCC_RETRIEVE_CNF, p_g_callref);
 194         send_and_free_mncc(p_g_lcr_gsm, resp->msg_type, resp);
 195
 196         /* enable audio */
 197         if (!p_g_tch_connected) { /* it should be true */
 198                 gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
 199                 end_trace();
 200                 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
 201                 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
 202                 p_g_tch_connected = 1;
 203         }
 204 }
 205
 206 /*
 207  * handles all indications
 208  */
 209 /* SETUP INDICATION */
 210 void Pgsm_bs::setup_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
 211 {
 212         class Endpoint *epoint;
 213         struct lcr_msg *message;
 214         struct gsm_mncc *mode, *proceeding, *frame;
 215         struct interface *interface;
 216
 217         interface = getinterfacebyname(p_g_interface_name);
 218         if (!interface) {
 219                 PERROR("Cannot find interface %s.\n", p_g_interface_name);
 220                 return;
 221         }
 222
 223         /* process given callref */
 224         gsm_trace_header(p_g_interface_name, this, 0, DIRECTION_IN);
 225         add_trace("callref", "new", "0x%x", callref);
 226         if (p_g_callref) {
 227                 /* release in case the ID is already in use */
 228                 add_trace("error", NULL, "callref already in use");
 229                 end_trace();
 230                 mncc = create_mncc(MNCC_REJ_REQ, callref);
 231                 gsm_trace_header(p_g_interface_name, this, MNCC_REJ_REQ, DIRECTION_OUT);
 232                 mncc->fields |= MNCC_F_CAUSE;
 233                 mncc->cause.coding = 3;
 234                 mncc->cause.location = 1;
 235                 mncc->cause.value = 47;
 236                 add_trace("cause", "coding", "%d", mncc->cause.coding);
 237                 add_trace("cause", "location", "%d", mncc->cause.location);
 238                 add_trace("cause", "value", "%d", mncc->cause.value);
 239                 add_trace("reason", NULL, "callref already in use");
 240                 end_trace();
 241                 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
 242                 new_state(PORT_STATE_RELEASE);
 243                 trigger_work(&p_g_delete);
 244                 return;
 245         }
 246         p_g_callref = callref;
 247         end_trace();
 248
 249         /* caller info */
 250         if (mncc->clir.inv)
 251                 p_callerinfo.present = INFO_PRESENT_RESTRICTED;
 252         else
 253                 p_callerinfo.present = INFO_PRESENT_ALLOWED;
 254         if (mncc->calling.number[0])
 255                 SCPY(p_callerinfo.id, mncc->calling.number);
 256         else
 257                 p_callerinfo.present = INFO_PRESENT_NOTAVAIL;
 258         SCPY(p_callerinfo.imsi, mncc->imsi);
 259         p_callerinfo.screen = INFO_SCREEN_NETWORK;
 260         p_callerinfo.ntype = INFO_NTYPE_UNKNOWN;
 261         SCPY(p_callerinfo.interface, p_g_interface_name);
 262
 263         /* dialing information */
 264         SCAT(p_dialinginfo.id, mncc->called.number);
 265         switch (mncc->called.type) {
 266                 case 0x1:
 267                 p_dialinginfo.ntype = INFO_NTYPE_INTERNATIONAL;
 268                 break;
 269                 case 0x2:
 270                 p_dialinginfo.ntype = INFO_NTYPE_NATIONAL;
 271                 break;
 272                 case 0x4:
 273                 p_dialinginfo.ntype = INFO_NTYPE_SUBSCRIBER;
 274                 break;
 275                 default:
 276                 p_dialinginfo.ntype = INFO_NTYPE_UNKNOWN;
 277                 break;
 278         }
 279         if (mncc->emergency) {
 280                 SCPY(p_dialinginfo.id, "emergency");
 281         }
 282         p_dialinginfo.sending_complete = 1;
 283
 284         /* bearer capability */
 285         // todo
 286         p_capainfo.bearer_capa = INFO_BC_SPEECH;
 287         p_capainfo.bearer_info1 = (options.law=='a')?3:2;
 288         p_capainfo.bearer_mode = INFO_BMODE_CIRCUIT;
 289         p_capainfo.source_mode = B_MODE_TRANSPARENT;
 290         p_g_mode = p_capainfo.source_mode;
 291
 292         /* useruser */
 293
 294         /* what infos did we got ... */
 295         gsm_trace_header(p_g_interface_name, this, msg_type, DIRECTION_IN);
 296         if (p_callerinfo.id[0])
 297                 add_trace("calling", "number", "%s", p_callerinfo.id);
 298         else
 299                 SPRINT(p_callerinfo.id, "imsi-%s", p_callerinfo.imsi);
 300         add_trace("calling", "imsi", "%s", p_callerinfo.imsi);
 301         add_trace("dialing", "number", "%s", p_dialinginfo.id);
 302         end_trace();
 303
 304         /* create endpoint */
 305         if (p_epointlist)
 306                 FATAL("Incoming call but already got an endpoint.\n");
 307         if (!(epoint = new Endpoint(p_serial, 0)))
 308                 FATAL("No memory for Endpoint instance\n");
 309         epoint->ep_app = new_endpointapp(epoint, 0, interface->app); //incoming
 310         epointlist_new(epoint->ep_serial);
 311
 312         /* modify lchan to GSM codec V1 */
 313         gsm_trace_header(p_g_interface_name, this, MNCC_LCHAN_MODIFY, DIRECTION_OUT);
 314         mode = create_mncc(MNCC_LCHAN_MODIFY, p_g_callref);
 315         mode->lchan_mode = 0x01; /* GSM V1 */
 316         mode->lchan_type = 0x02;
 317         add_trace("mode", NULL, "0x%02x", mode->lchan_mode);
 318         end_trace();
 319         send_and_free_mncc(p_g_lcr_gsm, mode->msg_type, mode);
 320
 321         /* send call proceeding */
 322         gsm_trace_header(p_g_interface_name, this, MNCC_CALL_PROC_REQ, DIRECTION_OUT);
 323         proceeding = create_mncc(MNCC_CALL_PROC_REQ, p_g_callref);
 324         if (p_g_tones) {
 325                 proceeding->fields |= MNCC_F_PROGRESS;
 326                 proceeding->progress.coding = 3; /* GSM */
 327                 proceeding->progress.location = 1;
 328                 proceeding->progress.descr = 8;
 329                 add_trace("progress", "coding", "%d", proceeding->progress.coding);
 330                 add_trace("progress", "location", "%d", proceeding->progress.location);
 331                 add_trace("progress", "descr", "%d", proceeding->progress.descr);
 332         }
 333         end_trace();
 334         send_and_free_mncc(p_g_lcr_gsm, proceeding->msg_type, proceeding);
 335
 336         new_state(PORT_STATE_IN_PROCEEDING);
 337
 338         if (p_g_tones && !p_g_tch_connected) { /* only if ... */
 339                 gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
 340                 end_trace();
 341                 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
 342                 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
 343                 p_g_tch_connected = 1;
 344         }
 345
 346         /* send setup message to endpoit */
 347         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_SETUP);
 348         message->param.setup.port_type = p_type;
 349 //      message->param.setup.dtmf = 0;
 350         memcpy(&message->param.setup.dialinginfo, &p_dialinginfo, sizeof(struct dialing_info));
 351         memcpy(&message->param.setup.callerinfo, &p_callerinfo, sizeof(struct caller_info));
 352         memcpy(&message->param.setup.capainfo, &p_capainfo, sizeof(struct capa_info));
 353         SCPY((char *)message->param.setup.useruser.data, (char *)mncc->useruser.info);
 354         message->param.setup.useruser.len = strlen(mncc->useruser.info);
 355         message->param.setup.useruser.protocol = mncc->useruser.proto;
 356         message->param.setup.rtpinfo.payload_type = 3; /* FIXME: receive payload type from peer */
 357
 358         if (p_g_rtp_bridge) {
 359                 struct gsm_mncc_rtp *rtp;
 360
 361                 PDEBUG(DEBUG_GSM, "Request RTP peer info, before forwarding setup\n");
 362                 p_g_setup_pending = message;
 363                 rtp = (struct gsm_mncc_rtp *) create_mncc(MNCC_RTP_CREATE, p_g_callref);
 364                 send_and_free_mncc(p_g_lcr_gsm, rtp->msg_type, rtp);
 365         } else
 366                 message_put(message);
 367
 368 }
 369
 370 /*
 371  * BSC sends message to port
 372  */
 373 int message_bsc(struct lcr_gsm *lcr_gsm, int msg_type, void *arg)
 374 {
 375         struct gsm_mncc *mncc = (struct gsm_mncc *)arg;
 376         unsigned int callref = mncc->callref;
 377         class Port *port;
 378         class Pgsm_bs *pgsm_bs = NULL;
 379         char name[64];
 380 //      struct mISDNport *mISDNport;
 381
 382         /* Special messages */
 383         switch(msg_type) {
 384         }
 385
 386         /* find callref */
 387         callref = mncc->callref;
 388         port = port_first;
 389         while(port) {
 390                 if ((port->p_type & PORT_CLASS_GSM_MASK) == PORT_CLASS_GSM_BS) {
 391                         pgsm_bs = (class Pgsm_bs *)port;
 392                         if (pgsm_bs->p_g_callref == callref) {
 393                                 break;
 394                         }
 395                 }
 396                 port = port->next;
 397         }
 398
 399         if (msg_type == GSM_TCHF_FRAME) {
 400                 if (port) {
 401                         /* inject DTMF, if enabled */
 402                         if (pgsm_bs->p_g_dtmf) {
 403                                 unsigned char data[160];
 404                                 int i;
 405
 406                                 for (i = 0; i < 160; i++) {
 407                                         data[i] = pgsm_bs->p_g_dtmf[pgsm_bs->p_g_dtmf_index++];
 408                                         if (pgsm_bs->p_g_dtmf_index == 8000)
 409                                                 pgsm_bs->p_g_dtmf_index = 0;
 410                                 }
 411                                 /* send */
 412                                 pgsm_bs->bridge_tx(data, 160);
 413                         } else
 414                                 pgsm_bs->frame_receive(arg);
 415                         /* if we do not bridge we need to inject audio, if available */
 416                         if (!pgsm_bs->p_bridge) {
 417                                 unsigned char data[160];
 418                                 int i;
 419
 420                                 i = pgsm_bs->read_audio(data, 160);
 421                                 if (i)
 422                                         pgsm_bs->bridge_rx(data, i);
 423                         }
 424                 }
 425                 return 0;
 426         }
 427
 428         if (!port) {
 429                 struct interface *interface;
 430
 431                 if (msg_type != MNCC_SETUP_IND)
 432                         return(0);
 433
 434                 interface = getinterfacebyname(lcr_gsm->interface_name);
 435                 if (!interface) {
 436                         struct gsm_mncc *rej;
 437
 438                         rej = create_mncc(MNCC_REJ_REQ, callref);
 439                         rej->fields |= MNCC_F_CAUSE;
 440                         rej->cause.coding = 3;
 441                         rej->cause.location = 1;
 442                         rej->cause.value = 27;
 443                         gsm_trace_header(NULL, NULL, MNCC_REJ_REQ, DIRECTION_OUT);
 444                         add_trace("cause", "coding", "%d", rej->cause.coding);
 445                         add_trace("cause", "location", "%d", rej->cause.location);
 446                         add_trace("cause", "value", "%d", rej->cause.value);
 447                         add_trace("reason", NULL, "interface %s not found", lcr_gsm->interface_name);
 448                         end_trace();
 449                         send_and_free_mncc(lcr_gsm, rej->msg_type, rej);
 450                         return 0;
 451                 }
 452                 /* creating port object, transparent until setup with hdlc */
 453                 SPRINT(name, "%s-%d-in", interface->name, 0);
 454                 if (!(pgsm_bs = new Pgsm_bs(PORT_TYPE_GSM_BS_IN, name, NULL, interface)))
 455                         FATAL("Cannot create Port instance.\n");
 456         }
 457
 458         switch(msg_type) {
 459                 case MNCC_SETUP_IND:
 460                 pgsm_bs->setup_ind(msg_type, callref, mncc);
 461                 break;
 462
 463                 case MNCC_RTP_CREATE:
 464                 pgsm_bs->rtp_create_ind(msg_type, callref, mncc);
 465                 break;
 466
 467                 case MNCC_RTP_CONNECT:
 468                 pgsm_bs->rtp_connect_ind(msg_type, callref, mncc);
 469                 break;
 470
 471                 case MNCC_START_DTMF_IND:
 472                 pgsm_bs->start_dtmf_ind(msg_type, callref, mncc);
 473                 break;
 474
 475                 case MNCC_STOP_DTMF_IND:
 476                 pgsm_bs->stop_dtmf_ind(msg_type, callref, mncc);
 477                 break;
 478
 479                 case MNCC_CALL_CONF_IND:
 480                 pgsm_bs->call_conf_ind(msg_type, callref, mncc);
 481                 break;
 482
 483                 case MNCC_ALERT_IND:
 484                 pgsm_bs->alert_ind(msg_type, callref, mncc);
 485                 break;
 486
 487                 case MNCC_SETUP_CNF:
 488                 pgsm_bs->setup_cnf(msg_type, callref, mncc);
 489                 break;
 490
 491                 case MNCC_SETUP_COMPL_IND:
 492                 pgsm_bs->setup_compl_ind(msg_type, callref, mncc);
 493                 break;
 494
 495                 case MNCC_DISC_IND:
 496                 pgsm_bs->disc_ind(msg_type, callref, mncc);
 497                 break;
 498
 499                 case MNCC_REL_IND:
 500                 case MNCC_REL_CNF:
 501                 case MNCC_REJ_IND:
 502                 pgsm_bs->rel_ind(msg_type, callref, mncc);
 503                 break;
 504
 505                 case MNCC_NOTIFY_IND:
 506                 pgsm_bs->notify_ind(msg_type, callref, mncc);
 507                 break;
 508
 509                 case MNCC_HOLD_IND:
 510                 pgsm_bs->hold_ind(msg_type, callref, mncc);
 511                 break;
 512
 513                 case MNCC_RETRIEVE_IND:
 514                 pgsm_bs->retr_ind(msg_type, callref, mncc);
 515                 break;
 516
 517                 default:
 518                 PDEBUG(DEBUG_GSM, "Pgsm_bs(%s) gsm port with (caller id %s) received unhandled nessage: 0x%x\n", pgsm_bs->p_name, pgsm_bs->p_callerinfo.id, msg_type);
 519         }
 520         return(0);
 521 }
 522
 523 /* MESSAGE_SETUP */
 524 void Pgsm_bs::message_setup(unsigned int epoint_id, int message_id, union parameter *param)
 525 {
 526         struct lcr_msg *message;
 527         struct epoint_list *epointlist;
 528         struct gsm_mncc *mncc;
 529
 530         /* copy setup infos to port */
 531         memcpy(&p_callerinfo, &param->setup.callerinfo, sizeof(p_callerinfo));
 532         memcpy(&p_dialinginfo, &param->setup.dialinginfo, sizeof(p_dialinginfo));
 533         memcpy(&p_capainfo, &param->setup.capainfo, sizeof(p_capainfo));
 534         memcpy(&p_redirinfo, &param->setup.redirinfo, sizeof(p_redirinfo));
 535
 536         /* no GSM MNCC connection */
 537         if (p_g_lcr_gsm->mncc_lfd.fd < 0) {
 538                 gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
 539                 add_trace("failure", NULL, "No MNCC connection.");
 540                 end_trace();
 541                 message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
 542                 message->param.disconnectinfo.cause = 41; // temp. failure.
 543                 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 544                 message_put(message);
 545                 new_state(PORT_STATE_RELEASE);
 546                 trigger_work(&p_g_delete);
 547                 return;
 548         }
 549
 550         /* no number */
 551         if (!p_dialinginfo.id[0]) {
 552                 gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
 553                 add_trace("failure", NULL, "No dialed subscriber given.");
 554                 end_trace();
 555                 message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
 556                 message->param.disconnectinfo.cause = 28;
 557                 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 558                 message_put(message);
 559                 new_state(PORT_STATE_RELEASE);
 560                 trigger_work(&p_g_delete);
 561                 return;
 562         }
 563
 564 //              SCPY(&p_m_tones_dir, param->setup.ext.tones_dir);
 565         /* screen outgoing caller id */
 566         do_screen(1, p_callerinfo.id, sizeof(p_callerinfo.id), &p_callerinfo.ntype, &p_callerinfo.present, p_g_interface_name);
 567
 568         /* attach only if not already */
 569         epointlist = p_epointlist;
 570         while(epointlist) {
 571                 if (epointlist->epoint_id == epoint_id)
 572                         break;
 573                 epointlist = epointlist->next;
 574         }
 575         if (!epointlist)
 576                 epointlist_new(epoint_id);
 577
 578         /* creating l3id */
 579         gsm_trace_header(p_g_interface_name, this, 0, DIRECTION_OUT);
 580         p_g_callref = new_callref++;
 581         add_trace("callref", "new", "0x%x", p_g_callref);
 582         end_trace();
 583
 584         gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
 585         mncc = create_mncc(MNCC_SETUP_REQ, p_g_callref);
 586         /* caller information */
 587         mncc->fields |= MNCC_F_CALLING;
 588         mncc->calling.plan = 1;
 589         switch (p_callerinfo.ntype) {
 590                 case INFO_NTYPE_UNKNOWN:
 591                 mncc->calling.type = 0x0;
 592                 break;
 593                 case INFO_NTYPE_INTERNATIONAL:
 594                 mncc->calling.type = 0x1;
 595                 break;
 596                 case INFO_NTYPE_NATIONAL:
 597                 mncc->calling.type = 0x2;
 598                 break;
 599                 case INFO_NTYPE_SUBSCRIBER:
 600                 mncc->calling.type = 0x4;
 601                 break;
 602                 default: /* INFO_NTYPE_NOTPRESENT */
 603                 mncc->fields &= ~MNCC_F_CALLING;
 604                 break;
 605         }
 606         switch (p_callerinfo.screen) {
 607                 case INFO_SCREEN_USER:
 608                 mncc->calling.screen = 0;
 609                 break;
 610                 default: /* INFO_SCREEN_NETWORK */
 611                 mncc->calling.screen = 3;
 612                 break;
 613         }
 614         switch (p_callerinfo.present) {
 615                 case INFO_PRESENT_ALLOWED:
 616                 mncc->calling.present = 0;
 617                 break;
 618                 case INFO_PRESENT_RESTRICTED:
 619                 mncc->calling.present = 1;
 620                 break;
 621                 default: /* INFO_PRESENT_NOTAVAIL */
 622                 mncc->calling.present = 2;
 623                 break;
 624         }
 625         if (mncc->fields & MNCC_F_CALLING) {
 626                 SCPY(mncc->calling.number, p_callerinfo.id);
 627                 add_trace("calling", "type", "%d", mncc->calling.type);
 628                 add_trace("calling", "plan", "%d", mncc->calling.plan);
 629                 add_trace("calling", "present", "%d", mncc->calling.present);
 630                 add_trace("calling", "screen", "%d", mncc->calling.screen);
 631                 add_trace("calling", "number", "%s", mncc->calling.number);
 632         }
 633         /* dialing information */
 634         mncc->fields |= MNCC_F_CALLED;
 635         if (!strncmp(p_dialinginfo.id, "imsi-", 5)) {
 636                 SCPY(mncc->imsi, p_dialinginfo.id+5);
 637                 add_trace("dialing", "imsi", "%s", mncc->imsi);
 638         } else {
 639                 SCPY(mncc->called.number, p_dialinginfo.id);
 640                 add_trace("dialing", "number", "%s", mncc->called.number);
 641         }
 642
 643         /* sending user-user */
 644
 645         /* redirecting number */
 646         mncc->fields |= MNCC_F_REDIRECTING;
 647         mncc->redirecting.plan = 1;
 648         switch (p_redirinfo.ntype) {
 649                 case INFO_NTYPE_UNKNOWN:
 650                 mncc->redirecting.type = 0x0;
 651                 break;
 652                 case INFO_NTYPE_INTERNATIONAL:
 653                 mncc->redirecting.type = 0x1;
 654                 break;
 655                 case INFO_NTYPE_NATIONAL:
 656                 mncc->redirecting.type = 0x2;
 657                 break;
 658                 case INFO_NTYPE_SUBSCRIBER:
 659                 mncc->redirecting.type = 0x4;
 660                 break;
 661                 default: /* INFO_NTYPE_NOTPRESENT */
 662                 mncc->fields &= ~MNCC_F_REDIRECTING;
 663                 break;
 664         }
 665         switch (p_redirinfo.screen) {
 666                 case INFO_SCREEN_USER:
 667                 mncc->redirecting.screen = 0;
 668                 break;
 669                 default: /* INFO_SCREE_NETWORK */
 670                 mncc->redirecting.screen = 3;
 671                 break;
 672         }
 673         switch (p_redirinfo.present) {
 674                 case INFO_PRESENT_ALLOWED:
 675                 mncc->redirecting.present = 0;
 676                 break;
 677                 case INFO_PRESENT_RESTRICTED:
 678                 mncc->redirecting.present = 1;
 679                 break;
 680                 default: /* INFO_PRESENT_NOTAVAIL */
 681                 mncc->redirecting.present = 2;
 682                 break;
 683         }
 684         /* sending redirecting number only in ntmode */
 685         if (mncc->fields & MNCC_F_REDIRECTING) {
 686                 SCPY(mncc->redirecting.number, p_redirinfo.id);
 687                 add_trace("redir", "type", "%d", mncc->redirecting.type);
 688                 add_trace("redir", "plan", "%d", mncc->redirecting.plan);
 689                 add_trace("redir", "present", "%d", mncc->redirecting.present);
 690                 add_trace("redir", "screen", "%d", mncc->redirecting.screen);
 691                 add_trace("redir", "number", "%s", mncc->redirecting.number);
 692         }
 693         /* bearer capability */
 694         //todo
 695
 696         end_trace();
 697         send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
 698
 699         new_state(PORT_STATE_OUT_SETUP);
 700
 701         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROCEEDING);
 702         message_put(message);
 703
 704         new_state(PORT_STATE_OUT_PROCEEDING);
 705
 706         /* RTP bridge */
 707         if (param->setup.rtpinfo.port) {
 708                 p_g_rtp_bridge = 1;
 709                 p_g_rtp_ip_remote = param->setup.rtpinfo.ip;
 710                 p_g_rtp_port_remote = param->setup.rtpinfo.port;
 711         } else
 712                 p_g_rtp_bridge = 0;
 713 }
 714
 715 /*
 716  * endpoint sends messages to the port
 717  */
 718 int Pgsm_bs::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
 719 {
 720         if (Pgsm::message_epoint(epoint_id, message_id, param))
 721                 return(1);
 722
 723         switch(message_id) {
 724                 case MESSAGE_SETUP: /* dial-out command received from epoint */
 725                 if (p_state!=PORT_STATE_IDLE)
 726                         break;
 727                 message_setup(epoint_id, message_id, param);
 728                 break;
 729
 730                 default:
 731                 PDEBUG(DEBUG_GSM, "Pgsm_bs(%s) gsm port with (caller id %s) received unhandled nessage: %d\n", p_name, p_callerinfo.id, message_id);
 732         }
 733
 734         return(1);
 735 }
 736
 737 int gsm_bs_exit(int rc)
 738 {
 739         /* free gsm instance */
 740         if (gsm_bs) {
 741                 if (gsm_bs->mncc_lfd.fd > -1) {
 742                         close(gsm_bs->mncc_lfd.fd);
 743                         unregister_fd(&gsm_bs->mncc_lfd);
 744                 }
 745
 746                 del_timer(&gsm_bs->socket_retry);
 747                 free(gsm_bs);
 748                 gsm_bs = NULL;
 749         }
 750
 751
 752         return(rc);
 753 }
 754
 755 int gsm_bs_init(struct interface *interface)
 756 {
 757         /* create gsm instance */
 758         gsm_bs = (struct lcr_gsm *)MALLOC(sizeof(struct lcr_gsm));
 759
 760         SCPY(gsm_bs->interface_name, interface->name);
 761         gsm_bs->type = LCR_GSM_TYPE_NETWORK;
 762         gsm_bs->sun.sun_family = AF_UNIX;
 763         SCPY(gsm_bs->sun.sun_path, "/tmp/bsc_mncc");
 764
 765         memset(&gsm_bs->socket_retry, 0, sizeof(gsm_bs->socket_retry));
 766         add_timer(&gsm_bs->socket_retry, mncc_socket_retry_cb, gsm_bs, 0);
 767
 768         /* do the initial connect */
 769         mncc_socket_retry_cb(&gsm_bs->socket_retry, gsm_bs, 0);
 770
 771         generate_dtmf();
 772
 773         return 0;
 774 }