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