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          || msg_type == GSM_TCHF_BAD_FRAME) {
 401                 if (port) {
 402                         /* inject DTMF, if enabled */
 403                         if (pgsm_bs->p_g_dtmf) {
 404                                 unsigned char data[160];
 405                                 int i;
 406
 407                                 for (i = 0; i < 160; i++) {
 408                                         data[i] = pgsm_bs->p_g_dtmf[pgsm_bs->p_g_dtmf_index++];
 409                                         if (pgsm_bs->p_g_dtmf_index == 8000)
 410                                                 pgsm_bs->p_g_dtmf_index = 0;
 411                                 }
 412                                 /* send */
 413                                 pgsm_bs->bridge_tx(data, 160);
 414                         } else
 415                                 pgsm_bs->frame_receive(arg);
 416                         /* if we do not bridge we need to inject audio, if available */
 417                         if (!pgsm_bs->p_bridge || pgsm_bs->p_tone_name[0]) {
 418                                 unsigned char data[160];
 419                                 int i;
 420
 421                                 i = pgsm_bs->read_audio(data, 160);
 422                                 if (i)
 423                                         pgsm_bs->audio_send(data, i);
 424                         }
 425                 }
 426                 return 0;
 427         }
 428
 429         if (!port) {
 430                 struct interface *interface;
 431
 432                 if (msg_type != MNCC_SETUP_IND)
 433                         return(0);
 434
 435                 interface = getinterfacebyname(lcr_gsm->interface_name);
 436                 if (!interface) {
 437                         struct gsm_mncc *rej;
 438
 439                         rej = create_mncc(MNCC_REJ_REQ, callref);
 440                         rej->fields |= MNCC_F_CAUSE;
 441                         rej->cause.coding = 3;
 442                         rej->cause.location = 1;
 443                         rej->cause.value = 27;
 444                         gsm_trace_header(NULL, NULL, MNCC_REJ_REQ, DIRECTION_OUT);
 445                         add_trace("cause", "coding", "%d", rej->cause.coding);
 446                         add_trace("cause", "location", "%d", rej->cause.location);
 447                         add_trace("cause", "value", "%d", rej->cause.value);
 448                         add_trace("reason", NULL, "interface %s not found", lcr_gsm->interface_name);
 449                         end_trace();
 450                         send_and_free_mncc(lcr_gsm, rej->msg_type, rej);
 451                         return 0;
 452                 }
 453                 /* creating port object, transparent until setup with hdlc */
 454                 SPRINT(name, "%s-%d-in", interface->name, 0);
 455                 if (!(pgsm_bs = new Pgsm_bs(PORT_TYPE_GSM_BS_IN, name, NULL, interface)))
 456                         FATAL("Cannot create Port instance.\n");
 457         }
 458
 459         switch(msg_type) {
 460                 case MNCC_SETUP_IND:
 461                 pgsm_bs->setup_ind(msg_type, callref, mncc);
 462                 break;
 463
 464                 case MNCC_RTP_CREATE:
 465                 pgsm_bs->rtp_create_ind(msg_type, callref, mncc);
 466                 break;
 467
 468                 case MNCC_RTP_CONNECT:
 469                 pgsm_bs->rtp_connect_ind(msg_type, callref, mncc);
 470                 break;
 471
 472                 case MNCC_START_DTMF_IND:
 473                 pgsm_bs->start_dtmf_ind(msg_type, callref, mncc);
 474                 break;
 475
 476                 case MNCC_STOP_DTMF_IND:
 477                 pgsm_bs->stop_dtmf_ind(msg_type, callref, mncc);
 478                 break;
 479
 480                 case MNCC_CALL_CONF_IND:
 481                 pgsm_bs->call_conf_ind(msg_type, callref, mncc);
 482                 break;
 483
 484                 case MNCC_ALERT_IND:
 485                 pgsm_bs->alert_ind(msg_type, callref, mncc);
 486                 break;
 487
 488                 case MNCC_SETUP_CNF:
 489                 pgsm_bs->setup_cnf(msg_type, callref, mncc);
 490                 break;
 491
 492                 case MNCC_SETUP_COMPL_IND:
 493                 pgsm_bs->setup_compl_ind(msg_type, callref, mncc);
 494                 break;
 495
 496                 case MNCC_DISC_IND:
 497                 pgsm_bs->disc_ind(msg_type, callref, mncc);
 498                 break;
 499
 500                 case MNCC_REL_IND:
 501                 case MNCC_REL_CNF:
 502                 case MNCC_REJ_IND:
 503                 pgsm_bs->rel_ind(msg_type, callref, mncc);
 504                 break;
 505
 506                 case MNCC_NOTIFY_IND:
 507                 pgsm_bs->notify_ind(msg_type, callref, mncc);
 508                 break;
 509
 510                 case MNCC_HOLD_IND:
 511                 pgsm_bs->hold_ind(msg_type, callref, mncc);
 512                 break;
 513
 514                 case MNCC_RETRIEVE_IND:
 515                 pgsm_bs->retr_ind(msg_type, callref, mncc);
 516                 break;
 517
 518                 default:
 519                 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);
 520         }
 521         return(0);
 522 }
 523
 524 /* MESSAGE_SETUP */
 525 void Pgsm_bs::message_setup(unsigned int epoint_id, int message_id, union parameter *param)
 526 {
 527         struct lcr_msg *message;
 528         struct epoint_list *epointlist;
 529         struct gsm_mncc *mncc;
 530
 531         /* copy setup infos to port */
 532         memcpy(&p_callerinfo, &param->setup.callerinfo, sizeof(p_callerinfo));
 533         memcpy(&p_dialinginfo, &param->setup.dialinginfo, sizeof(p_dialinginfo));
 534         memcpy(&p_capainfo, &param->setup.capainfo, sizeof(p_capainfo));
 535         memcpy(&p_redirinfo, &param->setup.redirinfo, sizeof(p_redirinfo));
 536
 537         /* no GSM MNCC connection */
 538         if (p_g_lcr_gsm->mncc_lfd.fd < 0) {
 539                 gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
 540                 add_trace("failure", NULL, "No MNCC connection.");
 541                 end_trace();
 542                 message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
 543                 message->param.disconnectinfo.cause = 41; // temp. failure.
 544                 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 545                 message_put(message);
 546                 new_state(PORT_STATE_RELEASE);
 547                 trigger_work(&p_g_delete);
 548                 return;
 549         }
 550
 551         /* no number */
 552         if (!p_dialinginfo.id[0]) {
 553                 gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
 554                 add_trace("failure", NULL, "No dialed subscriber given.");
 555                 end_trace();
 556                 message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
 557                 message->param.disconnectinfo.cause = 28;
 558                 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 559                 message_put(message);
 560                 new_state(PORT_STATE_RELEASE);
 561                 trigger_work(&p_g_delete);
 562                 return;
 563         }
 564
 565 //              SCPY(&p_m_tones_dir, param->setup.ext.tones_dir);
 566         /* screen outgoing caller id */
 567         do_screen(1, p_callerinfo.id, sizeof(p_callerinfo.id), &p_callerinfo.ntype, &p_callerinfo.present, p_g_interface_name);
 568
 569         /* attach only if not already */
 570         epointlist = p_epointlist;
 571         while(epointlist) {
 572                 if (epointlist->epoint_id == epoint_id)
 573                         break;
 574                 epointlist = epointlist->next;
 575         }
 576         if (!epointlist)
 577                 epointlist_new(epoint_id);
 578
 579         /* creating l3id */
 580         gsm_trace_header(p_g_interface_name, this, 0, DIRECTION_OUT);
 581         p_g_callref = new_callref++;
 582         add_trace("callref", "new", "0x%x", p_g_callref);
 583         end_trace();
 584
 585         gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
 586         mncc = create_mncc(MNCC_SETUP_REQ, p_g_callref);
 587         /* caller information */
 588         mncc->fields |= MNCC_F_CALLING;
 589         mncc->calling.plan = 1;
 590         switch (p_callerinfo.ntype) {
 591                 case INFO_NTYPE_UNKNOWN:
 592                 mncc->calling.type = 0x0;
 593                 break;
 594                 case INFO_NTYPE_INTERNATIONAL:
 595                 mncc->calling.type = 0x1;
 596                 break;
 597                 case INFO_NTYPE_NATIONAL:
 598                 mncc->calling.type = 0x2;
 599                 break;
 600                 case INFO_NTYPE_SUBSCRIBER:
 601                 mncc->calling.type = 0x4;
 602                 break;
 603                 default: /* INFO_NTYPE_NOTPRESENT */
 604                 mncc->fields &= ~MNCC_F_CALLING;
 605                 break;
 606         }
 607         switch (p_callerinfo.screen) {
 608                 case INFO_SCREEN_USER:
 609                 mncc->calling.screen = 0;
 610                 break;
 611                 default: /* INFO_SCREEN_NETWORK */
 612                 mncc->calling.screen = 3;
 613                 break;
 614         }
 615         switch (p_callerinfo.present) {
 616                 case INFO_PRESENT_ALLOWED:
 617                 mncc->calling.present = 0;
 618                 break;
 619                 case INFO_PRESENT_RESTRICTED:
 620                 mncc->calling.present = 1;
 621                 break;
 622                 default: /* INFO_PRESENT_NOTAVAIL */
 623                 mncc->calling.present = 2;
 624                 break;
 625         }
 626         if (mncc->fields & MNCC_F_CALLING) {
 627                 SCPY(mncc->calling.number, p_callerinfo.id);
 628                 add_trace("calling", "type", "%d", mncc->calling.type);
 629                 add_trace("calling", "plan", "%d", mncc->calling.plan);
 630                 add_trace("calling", "present", "%d", mncc->calling.present);
 631                 add_trace("calling", "screen", "%d", mncc->calling.screen);
 632                 add_trace("calling", "number", "%s", mncc->calling.number);
 633         }
 634         /* dialing information */
 635         mncc->fields |= MNCC_F_CALLED;
 636         if (!strncmp(p_dialinginfo.id, "imsi-", 5)) {
 637                 SCPY(mncc->imsi, p_dialinginfo.id+5);
 638                 add_trace("dialing", "imsi", "%s", mncc->imsi);
 639         } else {
 640                 SCPY(mncc->called.number, p_dialinginfo.id);
 641                 add_trace("dialing", "number", "%s", mncc->called.number);
 642         }
 643
 644         /* sending user-user */
 645
 646         /* redirecting number */
 647         mncc->fields |= MNCC_F_REDIRECTING;
 648         mncc->redirecting.plan = 1;
 649         switch (p_redirinfo.ntype) {
 650                 case INFO_NTYPE_UNKNOWN:
 651                 mncc->redirecting.type = 0x0;
 652                 break;
 653                 case INFO_NTYPE_INTERNATIONAL:
 654                 mncc->redirecting.type = 0x1;
 655                 break;
 656                 case INFO_NTYPE_NATIONAL:
 657                 mncc->redirecting.type = 0x2;
 658                 break;
 659                 case INFO_NTYPE_SUBSCRIBER:
 660                 mncc->redirecting.type = 0x4;
 661                 break;
 662                 default: /* INFO_NTYPE_NOTPRESENT */
 663                 mncc->fields &= ~MNCC_F_REDIRECTING;
 664                 break;
 665         }
 666         switch (p_redirinfo.screen) {
 667                 case INFO_SCREEN_USER:
 668                 mncc->redirecting.screen = 0;
 669                 break;
 670                 default: /* INFO_SCREE_NETWORK */
 671                 mncc->redirecting.screen = 3;
 672                 break;
 673         }
 674         switch (p_redirinfo.present) {
 675                 case INFO_PRESENT_ALLOWED:
 676                 mncc->redirecting.present = 0;
 677                 break;
 678                 case INFO_PRESENT_RESTRICTED:
 679                 mncc->redirecting.present = 1;
 680                 break;
 681                 default: /* INFO_PRESENT_NOTAVAIL */
 682                 mncc->redirecting.present = 2;
 683                 break;
 684         }
 685         /* sending redirecting number only in ntmode */
 686         if (mncc->fields & MNCC_F_REDIRECTING) {
 687                 SCPY(mncc->redirecting.number, p_redirinfo.id);
 688                 add_trace("redir", "type", "%d", mncc->redirecting.type);
 689                 add_trace("redir", "plan", "%d", mncc->redirecting.plan);
 690                 add_trace("redir", "present", "%d", mncc->redirecting.present);
 691                 add_trace("redir", "screen", "%d", mncc->redirecting.screen);
 692                 add_trace("redir", "number", "%s", mncc->redirecting.number);
 693         }
 694         /* bearer capability */
 695         //todo
 696
 697         end_trace();
 698         send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
 699
 700         new_state(PORT_STATE_OUT_SETUP);
 701
 702         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROCEEDING);
 703         message_put(message);
 704
 705         new_state(PORT_STATE_OUT_PROCEEDING);
 706
 707         /* RTP bridge */
 708         if (param->setup.rtpinfo.port) {
 709                 p_g_rtp_bridge = 1;
 710                 p_g_rtp_ip_remote = param->setup.rtpinfo.ip;
 711                 p_g_rtp_port_remote = param->setup.rtpinfo.port;
 712         } else
 713                 p_g_rtp_bridge = 0;
 714 }
 715
 716 /*
 717  * endpoint sends messages to the port
 718  */
 719 int Pgsm_bs::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
 720 {
 721         if (Pgsm::message_epoint(epoint_id, message_id, param))
 722                 return(1);
 723
 724         switch(message_id) {
 725                 case MESSAGE_SETUP: /* dial-out command received from epoint */
 726                 if (p_state!=PORT_STATE_IDLE)
 727                         break;
 728                 message_setup(epoint_id, message_id, param);
 729                 break;
 730
 731                 default:
 732                 PDEBUG(DEBUG_GSM, "Pgsm_bs(%s) gsm port with (caller id %s) received unhandled nessage: %d\n", p_name, p_callerinfo.id, message_id);
 733         }
 734
 735         return(1);
 736 }
 737
 738 int gsm_bs_exit(int rc)
 739 {
 740         /* free gsm instance */
 741         if (gsm_bs) {
 742                 if (gsm_bs->mncc_lfd.fd > -1) {
 743                         close(gsm_bs->mncc_lfd.fd);
 744                         unregister_fd(&gsm_bs->mncc_lfd);
 745                 }
 746
 747                 del_timer(&gsm_bs->socket_retry);
 748                 free(gsm_bs);
 749                 gsm_bs = NULL;
 750         }
 751
 752
 753         return(rc);
 754 }
 755
 756 int gsm_bs_init(struct interface *interface)
 757 {
 758         /* create gsm instance */
 759         gsm_bs = (struct lcr_gsm *)MALLOC(sizeof(struct lcr_gsm));
 760
 761         SCPY(gsm_bs->interface_name, interface->name);
 762         gsm_bs->type = LCR_GSM_TYPE_NETWORK;
 763         gsm_bs->sun.sun_family = AF_UNIX;
 764         SCPY(gsm_bs->sun.sun_path, "/tmp/bsc_mncc");
 765
 766         memset(&gsm_bs->socket_retry, 0, sizeof(gsm_bs->socket_retry));
 767         add_timer(&gsm_bs->socket_retry, mncc_socket_retry_cb, gsm_bs, 0);
 768
 769         /* do the initial connect */
 770         mncc_socket_retry_cb(&gsm_bs->socket_retry, gsm_bs, 0);
 771
 772         generate_dtmf();
 773
 774         return 0;
 775 }