gsm_ms.cpp

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** LCR                                                                       **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** mISDN gsm (MS mode)                                                       **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13 #include "mncc.h"
  14
  15
  16 struct lcr_gsm *gsm_ms_first = NULL;
  17
  18 static int dtmf_timeout(struct lcr_timer *timer, void *instance, int index);
  19
  20 #define DTMF_ST_IDLE            0       /* no DTMF active */
  21 #define DTMF_ST_START           1       /* DTMF started, waiting for resp. */
  22 #define DTMF_ST_MARK            2       /* wait tone duration */
  23 #define DTMF_ST_STOP            3       /* DTMF stopped, waiting for resp. */
  24 #define DTMF_ST_SPACE           4       /* wait space between tones */
  25
  26 /*
  27  * constructor
  28  */
  29 Pgsm_ms::Pgsm_ms(int type, char *portname, struct port_settings *settings, struct interface *interface) : Pgsm(type, portname, settings, interface)
  30 {
  31         struct lcr_gsm *gsm_ms = gsm_ms_first;
  32
  33         p_g_lcr_gsm = NULL;
  34         SCPY(p_g_ms_name, interface->gsm_ms_name);
  35
  36         while (gsm_ms) {
  37                 if (gsm_ms->type == LCR_GSM_TYPE_MS && !strcmp(gsm_ms->name, p_g_ms_name)) {
  38                         p_g_lcr_gsm = gsm_ms;
  39                         break;
  40                 }
  41                 gsm_ms = gsm_ms->gsm_ms_next;
  42         }
  43
  44         p_g_dtmf_state = DTMF_ST_IDLE;
  45         p_g_dtmf_index = 0;
  46         p_g_dtmf[0] = '\0';
  47         memset(&p_g_dtmf_timer, 0, sizeof(p_g_dtmf_timer));
  48         add_timer(&p_g_dtmf_timer, dtmf_timeout, this, 0);
  49
  50         PDEBUG(DEBUG_GSM, "Created new GSMMSPort(%s %s).\n", portname, p_g_ms_name);
  51 }
  52
  53 /*
  54  * destructor
  55  */
  56 Pgsm_ms::~Pgsm_ms()
  57 {
  58         PDEBUG(DEBUG_GSM, "Destroyed GSM MS process(%s).\n", p_name);
  59         del_timer(&p_g_dtmf_timer);
  60 }
  61
  62 /*
  63  * handles all indications
  64  */
  65 /* SETUP INDICATION */
  66 void Pgsm_ms::setup_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc)
  67 {
  68         class Endpoint *epoint;
  69         struct lcr_msg *message;
  70         struct gsm_mncc *mode, *proceeding, *frame;
  71         struct interface *interface;
  72
  73         interface = getinterfacebyname(p_g_interface_name);
  74         if (!interface) {
  75                 PERROR("Cannot find interface %s.\n", p_g_interface_name);
  76                 return;
  77         }
  78
  79         /* process given callref */
  80         gsm_trace_header(p_g_interface_name, this, 0, DIRECTION_IN);
  81         add_trace("callref", "new", "0x%x", callref);
  82         if (p_g_callref) {
  83                 /* release in case the ID is already in use */
  84                 add_trace("error", NULL, "callref already in use");
  85                 end_trace();
  86                 mncc = create_mncc(MNCC_REJ_REQ, callref);
  87                 gsm_trace_header(p_g_interface_name, this, MNCC_REJ_REQ, DIRECTION_OUT);
  88                 mncc->fields |= MNCC_F_CAUSE;
  89                 mncc->cause.coding = 3;
  90                 mncc->cause.location = 1;
  91                 mncc->cause.value = 47;
  92                 add_trace("cause", "coding", "%d", mncc->cause.coding);
  93                 add_trace("cause", "location", "%d", mncc->cause.location);
  94                 add_trace("cause", "value", "%d", mncc->cause.value);
  95                 add_trace("reason", NULL, "callref already in use");
  96                 end_trace();
  97                 send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
  98                 new_state(PORT_STATE_RELEASE);
  99                 trigger_work(&p_g_delete);
 100                 return;
 101         }
 102         p_g_callref = callref;
 103         end_trace();
 104
 105         gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_IND, DIRECTION_IN);
 106         /* caller information */
 107         p_callerinfo.ntype = INFO_NTYPE_NOTPRESENT;
 108         if (mncc->fields & MNCC_F_CALLING) {
 109                 switch (mncc->calling.present) {
 110                         case 1:
 111                         p_callerinfo.present = INFO_PRESENT_RESTRICTED;
 112                         break;
 113                         case 2:
 114                         p_callerinfo.present = INFO_PRESENT_NOTAVAIL;
 115                         break;
 116                         default:
 117                         p_callerinfo.present = INFO_PRESENT_ALLOWED;
 118                         break;
 119                 }
 120                 switch (mncc->calling.screen) {
 121                         case 0:
 122                         p_callerinfo.screen = INFO_SCREEN_USER;
 123                         break;
 124                         case 1:
 125                         p_callerinfo.screen = INFO_SCREEN_USER_VERIFIED_PASSED;
 126                         break;
 127                         case 2:
 128                         p_callerinfo.screen = INFO_SCREEN_USER_VERIFIED_FAILED;
 129                         break;
 130                         default:
 131                         p_callerinfo.screen = INFO_SCREEN_NETWORK;
 132                         break;
 133                 }
 134                 switch (mncc->calling.type) {
 135                         case 0x0:
 136                         p_callerinfo.ntype = INFO_NTYPE_UNKNOWN;
 137                         break;
 138                         case 0x1:
 139                         p_callerinfo.ntype = INFO_NTYPE_INTERNATIONAL;
 140                         break;
 141                         case 0x2:
 142                         p_callerinfo.ntype = INFO_NTYPE_NATIONAL;
 143                         break;
 144                         case 0x4:
 145                         p_callerinfo.ntype = INFO_NTYPE_SUBSCRIBER;
 146                         break;
 147                         default:
 148                         p_callerinfo.ntype = INFO_NTYPE_UNKNOWN;
 149                         break;
 150                 }
 151                 SCPY(p_callerinfo.id, mncc->calling.number);
 152                 add_trace("calling", "type", "%d", mncc->calling.type);
 153                 add_trace("calling", "plan", "%d", mncc->calling.plan);
 154                 add_trace("calling", "present", "%d", mncc->calling.present);
 155                 add_trace("calling", "screen", "%d", mncc->calling.screen);
 156                 add_trace("calling", "number", "%s", mncc->calling.number);
 157         }
 158         SCPY(p_callerinfo.interface, p_g_interface_name);
 159         /* dialing information */
 160         if (mncc->fields & MNCC_F_CALLED) {
 161                 SCAT(p_dialinginfo.id, mncc->called.number);
 162                 switch (mncc->called.type) {
 163                         case 0x1:
 164                         p_dialinginfo.ntype = INFO_NTYPE_INTERNATIONAL;
 165                         break;
 166                         case 0x2:
 167                         p_dialinginfo.ntype = INFO_NTYPE_NATIONAL;
 168                         break;
 169                         case 0x4:
 170                         p_dialinginfo.ntype = INFO_NTYPE_SUBSCRIBER;
 171                         break;
 172                         default:
 173                         p_dialinginfo.ntype = INFO_NTYPE_UNKNOWN;
 174                         break;
 175                 }
 176                 add_trace("dialing", "type", "%d", mncc->called.type);
 177                 add_trace("dialing", "plan", "%d", mncc->called.plan);
 178                 add_trace("dialing", "number", "%s", mncc->called.number);
 179         }
 180         p_dialinginfo.sending_complete = 1;
 181         /* redir info */
 182         p_redirinfo.ntype = INFO_NTYPE_NOTPRESENT;
 183         if (mncc->fields & MNCC_F_REDIRECTING) {
 184                 switch (mncc->redirecting.present) {
 185                         case 1:
 186                         p_redirinfo.present = INFO_PRESENT_RESTRICTED;
 187                         break;
 188                         case 2:
 189                         p_redirinfo.present = INFO_PRESENT_NOTAVAIL;
 190                         break;
 191                         default:
 192                         p_redirinfo.present = INFO_PRESENT_ALLOWED;
 193                         break;
 194                 }
 195                 switch (mncc->redirecting.screen) {
 196                         case 0:
 197                         p_redirinfo.screen = INFO_SCREEN_USER;
 198                         break;
 199                         case 1:
 200                         p_redirinfo.screen = INFO_SCREEN_USER_VERIFIED_PASSED;
 201                         break;
 202                         case 2:
 203                         p_redirinfo.screen = INFO_SCREEN_USER_VERIFIED_FAILED;
 204                         break;
 205                         default:
 206                         p_redirinfo.screen = INFO_SCREEN_NETWORK;
 207                         break;
 208                 }
 209                 switch (mncc->redirecting.type) {
 210                         case 0x0:
 211                         p_redirinfo.ntype = INFO_NTYPE_UNKNOWN;
 212                         break;
 213                         case 0x1:
 214                         p_redirinfo.ntype = INFO_NTYPE_INTERNATIONAL;
 215                         break;
 216                         case 0x2:
 217                         p_redirinfo.ntype = INFO_NTYPE_NATIONAL;
 218                         break;
 219                         case 0x4:
 220                         p_redirinfo.ntype = INFO_NTYPE_SUBSCRIBER;
 221                         break;
 222                         default:
 223                         p_redirinfo.ntype = INFO_NTYPE_UNKNOWN;
 224                         break;
 225                 }
 226                 SCPY(p_redirinfo.id, mncc->redirecting.number);
 227                 add_trace("redir", "type", "%d", mncc->redirecting.type);
 228                 add_trace("redir", "plan", "%d", mncc->redirecting.plan);
 229                 add_trace("redir", "present", "%d", mncc->redirecting.present);
 230                 add_trace("redir", "screen", "%d", mncc->redirecting.screen);
 231                 add_trace("redir", "number", "%s", mncc->redirecting.number);
 232         }
 233         /* bearer capability */
 234         if (mncc->fields & MNCC_F_BEARER_CAP) {
 235                 switch (mncc->bearer_cap.transfer) {
 236                         case 1:
 237                         p_capainfo.bearer_capa = INFO_BC_DATAUNRESTRICTED;
 238                         break;
 239                         case 2:
 240                         case 3:
 241                         p_capainfo.bearer_capa = INFO_BC_AUDIO;
 242                         p_capainfo.bearer_info1 = (options.law=='a')?3:2;
 243                         break;
 244                         default:
 245                         p_capainfo.bearer_capa = INFO_BC_SPEECH;
 246                         p_capainfo.bearer_info1 = (options.law=='a')?3:2;
 247                         break;
 248                 }
 249                 switch (mncc->bearer_cap.mode) {
 250                         case 1:
 251                         p_capainfo.bearer_mode = INFO_BMODE_PACKET;
 252                         break;
 253                         default:
 254                         p_capainfo.bearer_mode = INFO_BMODE_CIRCUIT;
 255                         break;
 256                 }
 257                 add_trace("bearer", "transfer", "%d", mncc->bearer_cap.transfer);
 258                 add_trace("bearer", "mode", "%d", mncc->bearer_cap.mode);
 259         } else {
 260                 p_capainfo.bearer_capa = INFO_BC_SPEECH;
 261                 p_capainfo.bearer_info1 = (options.law=='a')?3:2;
 262                 p_capainfo.bearer_mode = INFO_BMODE_CIRCUIT;
 263         }
 264         /* if packet mode works some day, see dss1.cpp for conditions */
 265         p_capainfo.source_mode = B_MODE_TRANSPARENT;
 266
 267         end_trace();
 268
 269         /* create endpoint */
 270         if (p_epointlist)
 271                 FATAL("Incoming call but already got an endpoint.\n");
 272         if (!(epoint = new Endpoint(p_serial, 0)))
 273                 FATAL("No memory for Endpoint instance\n");
 274         epoint->ep_app = new_endpointapp(epoint, 0, interface->app); //incoming
 275         epointlist_new(epoint->ep_serial);
 276
 277         /* modify lchan to GSM codec V1 */
 278         gsm_trace_header(p_g_interface_name, this, MNCC_LCHAN_MODIFY, DIRECTION_OUT);
 279         mode = create_mncc(MNCC_LCHAN_MODIFY, p_g_callref);
 280         mode->lchan_mode = 0x01; /* GSM V1 */
 281         mode->lchan_type = 0x02;
 282         add_trace("mode", NULL, "0x%02x", mode->lchan_mode);
 283         end_trace();
 284         send_and_free_mncc(p_g_lcr_gsm, mode->msg_type, mode);
 285
 286         /* send call proceeding */
 287         gsm_trace_header(p_g_interface_name, this, MNCC_CALL_CONF_REQ, DIRECTION_OUT);
 288         proceeding = create_mncc(MNCC_CALL_CONF_REQ, p_g_callref);
 289         // FIXME: bearer
 290         /* DTMF supported */
 291         proceeding->fields |= MNCC_F_CCCAP;
 292         proceeding->cccap.dtmf = 1;
 293         end_trace();
 294         send_and_free_mncc(p_g_lcr_gsm, proceeding->msg_type, proceeding);
 295
 296         new_state(PORT_STATE_IN_PROCEEDING);
 297
 298         if (p_g_tones && !p_g_tch_connected) { /* only if ... */
 299                 gsm_trace_header(p_g_interface_name, this, MNCC_FRAME_RECV, DIRECTION_OUT);
 300                 end_trace();
 301                 frame = create_mncc(MNCC_FRAME_RECV, p_g_callref);
 302                 send_and_free_mncc(p_g_lcr_gsm, frame->msg_type, frame);
 303                 p_g_tch_connected = 1;
 304         }
 305
 306         /* send setup message to endpoit */
 307         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_SETUP);
 308         message->param.setup.port_type = p_type;
 309 //      message->param.setup.dtmf = 0;
 310         memcpy(&message->param.setup.dialinginfo, &p_dialinginfo, sizeof(struct dialing_info));
 311         memcpy(&message->param.setup.callerinfo, &p_callerinfo, sizeof(struct caller_info));
 312         memcpy(&message->param.setup.capainfo, &p_capainfo, sizeof(struct capa_info));
 313         SCPY((char *)message->param.setup.useruser.data, (char *)mncc->useruser.info);
 314         message->param.setup.useruser.len = strlen(mncc->useruser.info);
 315         message->param.setup.useruser.protocol = mncc->useruser.proto;
 316         message_put(message);
 317 }
 318
 319 /*
 320  * MS sends message to port
 321  */
 322 int message_ms(struct lcr_gsm *gsm_ms, int msg_type, void *arg)
 323 {
 324         struct gsm_mncc *mncc = (struct gsm_mncc *)arg;
 325         unsigned int callref = mncc->callref;
 326         class Port *port;
 327         class Pgsm_ms *pgsm_ms = NULL;
 328         char name[64];
 329 //      struct mISDNport *mISDNport;
 330
 331         /* Special messages */
 332         switch (msg_type) {
 333         }
 334
 335         /* find callref */
 336         callref = mncc->callref;
 337         port = port_first;
 338         while(port) {
 339                 if ((port->p_type & PORT_CLASS_GSM_MASK) == PORT_CLASS_GSM_MS) {
 340                         pgsm_ms = (class Pgsm_ms *)port;
 341                         if (pgsm_ms->p_g_callref == callref) {
 342                                 break;
 343                         }
 344                 }
 345                 port = port->next;
 346         }
 347
 348         if (msg_type == GSM_TCHF_FRAME) {
 349                 if (port)
 350                         pgsm_ms->frame_receive(arg);
 351                 return 0;
 352         }
 353
 354         if (!port) {
 355                 struct interface *interface;
 356
 357                 if (msg_type != MNCC_SETUP_IND)
 358                         return(0);
 359
 360                 interface = getinterfacebyname(gsm_ms->interface_name);
 361                 if (!interface) {
 362                         struct gsm_mncc *rej;
 363
 364                         rej = create_mncc(MNCC_REJ_REQ, callref);
 365                         rej->fields |= MNCC_F_CAUSE;
 366                         rej->cause.coding = 3;
 367                         rej->cause.location = 1;
 368                         rej->cause.value = 27;
 369                         gsm_trace_header(NULL, NULL, MNCC_REJ_REQ, DIRECTION_OUT);
 370                         add_trace("cause", "coding", "%d", rej->cause.coding);
 371                         add_trace("cause", "location", "%d", rej->cause.location);
 372                         add_trace("cause", "value", "%d", rej->cause.value);
 373                         add_trace("reason", NULL, "interface %s not found", gsm_ms->interface_name);
 374                         end_trace();
 375                         send_and_free_mncc(gsm_ms, rej->msg_type, rej);
 376                         return 0;
 377                 }
 378                 /* creating port object, transparent until setup with hdlc */
 379                 SPRINT(name, "%s-%d-in", interface->name, 0);
 380                 if (!(pgsm_ms = new Pgsm_ms(PORT_TYPE_GSM_MS_IN, name, NULL, interface)))
 381                         FATAL("Cannot create Port instance.\n");
 382         }
 383
 384         switch(msg_type) {
 385                 case MNCC_SETUP_IND:
 386                 pgsm_ms->setup_ind(msg_type, callref, mncc);
 387                 break;
 388
 389                 case MNCC_CALL_PROC_IND:
 390                 pgsm_ms->call_proc_ind(msg_type, callref, mncc);
 391                 break;
 392
 393                 case MNCC_ALERT_IND:
 394                 pgsm_ms->alert_ind(msg_type, callref, mncc);
 395                 break;
 396
 397                 case MNCC_SETUP_CNF:
 398                 pgsm_ms->setup_cnf(msg_type, callref, mncc);
 399                 break;
 400
 401                 case MNCC_SETUP_COMPL_IND:
 402                 pgsm_ms->setup_compl_ind(msg_type, callref, mncc);
 403                 break;
 404
 405                 case MNCC_DISC_IND:
 406                 pgsm_ms->disc_ind(msg_type, callref, mncc);
 407                 break;
 408
 409                 case MNCC_REL_IND:
 410                 case MNCC_REL_CNF:
 411                 case MNCC_REJ_IND:
 412                 pgsm_ms->rel_ind(msg_type, callref, mncc);
 413                 break;
 414
 415                 case MNCC_NOTIFY_IND:
 416                 pgsm_ms->notify_ind(msg_type, callref, mncc);
 417                 break;
 418
 419                 case MNCC_START_DTMF_RSP:
 420                 case MNCC_START_DTMF_REJ:
 421                 case MNCC_STOP_DTMF_RSP:
 422                 pgsm_ms->dtmf_statemachine(mncc);
 423                 break;
 424
 425                 default:
 426                 ;
 427         }
 428         return(0);
 429 }
 430
 431 /* MESSAGE_SETUP */
 432 void Pgsm_ms::message_setup(unsigned int epoint_id, int message_id, union parameter *param)
 433 {
 434         struct lcr_msg *message;
 435         struct epoint_list *epointlist;
 436         struct gsm_mncc *mncc;
 437
 438         /* copy setup infos to port */
 439         memcpy(&p_callerinfo, &param->setup.callerinfo, sizeof(p_callerinfo));
 440         memcpy(&p_dialinginfo, &param->setup.dialinginfo, sizeof(p_dialinginfo));
 441         memcpy(&p_capainfo, &param->setup.capainfo, sizeof(p_capainfo));
 442         memcpy(&p_redirinfo, &param->setup.redirinfo, sizeof(p_redirinfo));
 443
 444         /* no instance */
 445         if (!p_g_lcr_gsm || p_g_lcr_gsm->mncc_lfd.fd < 0) {
 446                 gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
 447                 add_trace("failure", NULL, "MS %s instance is unavailable", p_g_ms_name);
 448                 end_trace();
 449                 message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
 450                 message->param.disconnectinfo.cause = 41;
 451                 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 452                 message_put(message);
 453                 new_state(PORT_STATE_RELEASE);
 454                 trigger_work(&p_g_delete);
 455                 return;
 456         }
 457
 458         /* no number */
 459         if (!p_dialinginfo.id[0]) {
 460                 gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
 461                 add_trace("failure", NULL, "No dialed subscriber given.");
 462                 end_trace();
 463                 message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
 464                 message->param.disconnectinfo.cause = 28;
 465                 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 466                 message_put(message);
 467                 new_state(PORT_STATE_RELEASE);
 468                 trigger_work(&p_g_delete);
 469                 return;
 470         }
 471
 472         /* attach only if not already */
 473         epointlist = p_epointlist;
 474         while(epointlist) {
 475                 if (epointlist->epoint_id == epoint_id)
 476                         break;
 477                 epointlist = epointlist->next;
 478         }
 479         if (!epointlist)
 480                 epointlist_new(epoint_id);
 481
 482         /* creating l3id */
 483         gsm_trace_header(p_g_interface_name, this, 0, DIRECTION_OUT);
 484         p_g_callref = new_callref++;
 485         add_trace("callref", "new", "0x%x", p_g_callref);
 486         end_trace();
 487
 488         gsm_trace_header(p_g_interface_name, this, MNCC_SETUP_REQ, DIRECTION_OUT);
 489         mncc = create_mncc(MNCC_SETUP_REQ, p_g_callref);
 490         if (!strncasecmp(p_dialinginfo.id, "emerg", 5)) {
 491                 mncc->emergency = 1;
 492         } else {
 493                 /* caller info (only clir) */
 494                 switch (p_callerinfo.present) {
 495                         case INFO_PRESENT_ALLOWED:
 496                         mncc->clir.inv = 1;
 497                         break;
 498                         default:
 499                         mncc->clir.sup = 1;
 500                 }
 501                 /* dialing information (mandatory) */
 502                 mncc->fields |= MNCC_F_CALLED;
 503                 mncc->called.type = 0; /* unknown */
 504                 mncc->called.plan = 1; /* isdn */
 505                 SCPY(mncc->called.number, p_dialinginfo.id);
 506                 add_trace("dialing", "number", "%s", mncc->called.number);
 507
 508                 /* bearer capability (mandatory) */
 509                 mncc->fields |= MNCC_F_BEARER_CAP;
 510                 mncc->bearer_cap.coding = 0;
 511                 mncc->bearer_cap.radio = 1;
 512                 mncc->bearer_cap.speech_ctm = 0;
 513                 mncc->bearer_cap.speech_ver[0] = 0;
 514                 mncc->bearer_cap.speech_ver[1] = -1; /* end of list */
 515                 switch (p_capainfo.bearer_capa) {
 516                         case INFO_BC_DATAUNRESTRICTED:
 517                         case INFO_BC_DATARESTRICTED:
 518                         mncc->bearer_cap.transfer = 1;
 519                         break;
 520                         case INFO_BC_SPEECH:
 521                         mncc->bearer_cap.transfer = 0;
 522                         break;
 523                         default:
 524                         mncc->bearer_cap.transfer = 2;
 525                         break;
 526                 }
 527                 switch (p_capainfo.bearer_mode) {
 528                         case INFO_BMODE_PACKET:
 529                         mncc->bearer_cap.mode = 1;
 530                         break;
 531                         default:
 532                         mncc->bearer_cap.mode = 0;
 533                         break;
 534                 }
 535                 /* DTMF supported */
 536                 mncc->fields |= MNCC_F_CCCAP;
 537                 mncc->cccap.dtmf = 1;
 538
 539                 /* request keypad from remote */
 540                 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_ENABLEKEYPAD);
 541                 message_put(message);
 542         }
 543
 544         end_trace();
 545         send_and_free_mncc(p_g_lcr_gsm, mncc->msg_type, mncc);
 546
 547         new_state(PORT_STATE_OUT_SETUP);
 548
 549         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_PROCEEDING);
 550         message_put(message);
 551
 552         new_state(PORT_STATE_OUT_PROCEEDING);
 553
 554         p_g_rtp_bridge = 0;
 555 }
 556
 557 void Pgsm_ms::dtmf_statemachine(struct gsm_mncc *mncc)
 558 {
 559         struct gsm_mncc *dtmf;
 560
 561         switch (p_g_dtmf_state) {
 562         case DTMF_ST_SPACE:
 563         case DTMF_ST_IDLE:
 564                 /* end of string */
 565                 if (!p_g_dtmf[p_g_dtmf_index]) {
 566                         PDEBUG(DEBUG_GSM, "done with DTMF\n");
 567                         p_g_dtmf_state = DTMF_ST_IDLE;
 568                         return;
 569                 }
 570                 gsm_trace_header(p_g_interface_name, this, MNCC_START_DTMF_REQ, DIRECTION_OUT);
 571                 dtmf = create_mncc(MNCC_START_DTMF_REQ, p_g_callref);
 572                 dtmf->keypad = p_g_dtmf[p_g_dtmf_index++];
 573                 p_g_dtmf_state = DTMF_ST_START;
 574                 PDEBUG(DEBUG_GSM, "start DTMF (keypad %c)\n",
 575                         dtmf->keypad);
 576                 end_trace();
 577                 send_and_free_mncc(p_g_lcr_gsm, dtmf->msg_type, dtmf);
 578                 return;
 579         case DTMF_ST_START:
 580                 if (mncc->msg_type != MNCC_START_DTMF_RSP) {
 581                         PDEBUG(DEBUG_GSM, "DTMF was rejected\n");
 582                         return;
 583                 }
 584                 schedule_timer(&p_g_dtmf_timer, 0, 70 * 1000);
 585                 p_g_dtmf_state = DTMF_ST_MARK;
 586                 PDEBUG(DEBUG_GSM, "DTMF is on\n");
 587                 break;
 588         case DTMF_ST_MARK:
 589                 gsm_trace_header(p_g_interface_name, this, MNCC_STOP_DTMF_REQ, DIRECTION_OUT);
 590                 dtmf = create_mncc(MNCC_STOP_DTMF_REQ, p_g_callref);
 591                 p_g_dtmf_state = DTMF_ST_STOP;
 592                 end_trace();
 593                 send_and_free_mncc(p_g_lcr_gsm, dtmf->msg_type, dtmf);
 594                 return;
 595         case DTMF_ST_STOP:
 596                 schedule_timer(&p_g_dtmf_timer, 0, 120 * 1000);
 597                 p_g_dtmf_state = DTMF_ST_SPACE;
 598                 PDEBUG(DEBUG_GSM, "DTMF is off\n");
 599                 break;
 600         }
 601 }
 602
 603 static int dtmf_timeout(struct lcr_timer *timer, void *instance, int index)
 604 {
 605         class Pgsm_ms *pgsm_ms = (class Pgsm_ms *)instance;
 606
 607         PDEBUG(DEBUG_GSM, "DTMF timer has fired\n");
 608         pgsm_ms->dtmf_statemachine(NULL);
 609
 610         return 0;
 611 }
 612
 613 /* MESSAGE_DTMF */
 614 void Pgsm_ms::message_dtmf(unsigned int epoint_id, int message_id, union parameter *param)
 615 {
 616         char digit = param->dtmf;
 617
 618         if (digit >= 'a' && digit <= 'c')
 619                 digit = digit - 'a' + 'A';
 620         if (!strchr("01234567890*#ABC", digit))
 621                 return;
 622
 623         /* schedule */
 624         if (p_g_dtmf_state == DTMF_ST_IDLE) {
 625                 p_g_dtmf_index = 0;
 626                 p_g_dtmf[0] = '\0';
 627         }
 628         SCCAT(p_g_dtmf, digit);
 629         if (p_g_dtmf_state == DTMF_ST_IDLE)
 630                 dtmf_statemachine(NULL);
 631 }
 632
 633 /* MESSAGE_INFORMATION */
 634 void Pgsm_ms::message_information(unsigned int epoint_id, int message_id, union parameter *param)
 635 {
 636         char digit;
 637         int i;
 638
 639         for (i = 0; i < (int)strlen(param->information.id); i++) {
 640                 digit = param->information.id[i];
 641                 if (digit >= 'a' && digit <= 'c')
 642                         digit = digit - 'a' + 'A';
 643                 if (!strchr("01234567890*#ABC", digit))
 644                         continue;
 645
 646                 /* schedule */
 647                 if (p_g_dtmf_state == DTMF_ST_IDLE) {
 648                         p_g_dtmf_index = 0;
 649                         p_g_dtmf[0] = '\0';
 650                 }
 651                 SCCAT(p_g_dtmf, digit);
 652                 if (p_g_dtmf_state == DTMF_ST_IDLE)
 653                         dtmf_statemachine(NULL);
 654         }
 655 }
 656
 657 /*
 658  * endpoint sends messages to the port
 659  */
 660 int Pgsm_ms::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
 661 {
 662         struct lcr_msg *message;
 663
 664         if (message_id == MESSAGE_CONNECT) {
 665                 /* request keypad from remote */
 666                 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_ENABLEKEYPAD);
 667                 message_put(message);
 668         }
 669
 670         if (Pgsm::message_epoint(epoint_id, message_id, param))
 671                 return(1);
 672
 673         switch(message_id) {
 674                 case MESSAGE_SETUP: /* dial-out command received from epoint */
 675                 if (p_state!=PORT_STATE_IDLE)
 676                         break;
 677                 message_setup(epoint_id, message_id, param);
 678                 break;
 679
 680                 case MESSAGE_DTMF:
 681                 message_dtmf(epoint_id, message_id, param);
 682                 break;
 683
 684                 case MESSAGE_INFORMATION:
 685                 message_information(epoint_id, message_id, param);
 686                 break;
 687
 688                 default:
 689                 PDEBUG(DEBUG_GSM, "Pgsm_ms(%s) gsm port with (caller id %s) received unhandled nessage: %d\n", p_name, p_callerinfo.id, message_id);
 690         }
 691
 692         return(1);
 693 }
 694
 695 int gsm_ms_exit(int rc)
 696 {
 697         /* destroy all instances */
 698         while (gsm_ms_first)
 699                 gsm_ms_delete(gsm_ms_first->name);
 700
 701         return rc;
 702 }
 703
 704 int gsm_ms_init(void)
 705 {
 706         return 0;
 707 }
 708
 709 /* add a new GSM mobile instance */
 710 int gsm_ms_new(struct interface *interface)
 711 {
 712         struct lcr_gsm *gsm_ms = gsm_ms_first, **gsm_ms_p = &gsm_ms_first;
 713
 714         while (gsm_ms) {
 715                 gsm_ms_p = &gsm_ms->gsm_ms_next;
 716                 gsm_ms = gsm_ms->gsm_ms_next;
 717         }
 718
 719         PDEBUG(DEBUG_GSM, "GSM: interface for MS '%s' is created\n", interface->gsm_ms_name);
 720
 721         /* create gsm instance */
 722         gsm_ms = (struct lcr_gsm *)MALLOC(sizeof(struct lcr_gsm));
 723
 724         SCPY(gsm_ms->interface_name, interface->name);
 725         gsm_ms->type = LCR_GSM_TYPE_MS;
 726         SCPY(gsm_ms->name, interface->gsm_ms_name);
 727         gsm_ms->sun.sun_family = AF_UNIX;
 728         SPRINT(gsm_ms->sun.sun_path, "/tmp/ms_mncc_%s", gsm_ms->name);
 729
 730         memset(&gsm_ms->socket_retry, 0, sizeof(gsm_ms->socket_retry));
 731         add_timer(&gsm_ms->socket_retry, mncc_socket_retry_cb, gsm_ms, 0);
 732
 733         /* do the initial connect */
 734         mncc_socket_retry_cb(&gsm_ms->socket_retry, gsm_ms, 0);
 735
 736         *gsm_ms_p = gsm_ms;
 737
 738         return 0;
 739 }
 740
 741 int gsm_ms_delete(const char *name)
 742 {
 743         struct lcr_gsm *gsm_ms = gsm_ms_first, **gsm_ms_p = &gsm_ms_first;
 744 //      class Port *port;
 745 //      class Pgsm_ms *pgsm_ms = NULL;
 746
 747         PDEBUG(DEBUG_GSM, "GSM: interface for MS '%s' is deleted\n", name);
 748
 749         while (gsm_ms) {
 750                 if (gsm_ms->type == LCR_GSM_TYPE_MS && !strcmp(gsm_ms->name, name))
 751                         break;
 752                 gsm_ms_p = &gsm_ms->gsm_ms_next;
 753                 gsm_ms = gsm_ms->gsm_ms_next;
 754         }
 755
 756         if (!gsm_ms)
 757                 return 0;
 758
 759 /* not needed, because:
 760  * - shutdown of interface will destry port instances locally
 761  * - closing of socket will make remote socket destroy calls locally
 762  */
 763 #if 0
 764         port = port_first;
 765         while(port) {
 766                 if ((port->p_type & PORT_CLASS_GSM_MASK) == PORT_CLASS_GSM_MS) {
 767                         pgsm_ms = (class Pgsm_ms *)port;
 768                         if (pgsm_ms->p_g_lcr_gsm == gsm_ms && pgsm_ms->p_g_callref) {
 769                                 struct gsm_mncc *rej;
 770
 771                                 rej = create_mncc(MNCC_REL_REQ, pgsm_ms->p_g_callref);
 772                                 rej->fields |= MNCC_F_CAUSE;
 773                                 rej->cause.coding = 3;
 774                                 rej->cause.location = 1;
 775                                 rej->cause.value = 27;
 776                                 gsm_trace_header(NULL, NULL, MNCC_REJ_REQ, DIRECTION_OUT);
 777                                 add_trace("cause", "coding", "%d", rej->cause.coding);
 778                                 add_trace("cause", "location", "%d", rej->cause.location);
 779                                 add_trace("cause", "value", "%d", rej->cause.value);
 780                                 end_trace();
 781                                 send_and_free_mncc(gsm_ms, rej->msg_type, rej);
 782                                 pgsm_ms->new_state(PORT_STATE_RELEASE);
 783                                 trigger_work(&pgsm_ms->p_g_delete);
 784                         }
 785                 }
 786         }
 787 #endif
 788
 789         if (gsm_ms->mncc_lfd.fd > -1) {
 790                 close(gsm_ms->mncc_lfd.fd);
 791                 unregister_fd(&gsm_ms->mncc_lfd);
 792         }
 793         del_timer(&gsm_ms->socket_retry);
 794
 795         /* remove instance from list */
 796         *gsm_ms_p = gsm_ms->gsm_ms_next;
 797         FREE(gsm_ms, sizeof(struct lcr_gsm));
 798
 799         return 0;
 800 }
 801
 802