port.cpp

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** PBX4Linux                                                                 **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** port                                                                      **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include <stdio.h>
  13 #include <string.h>
  14 #include <stdlib.h>
  15 #include <sys/types.h>
  16 #include <sys/stat.h>
  17 #include <fcntl.h>
  18 #include <unistd.h>
  19 #include <errno.h>
  20 #include "main.h"
  21
  22 #define BETTERDELAY
  23
  24 //#define MIXER_DEBUG /* debug mixer buffer overflow and underrun */
  25
  26 class Port *port_first = NULL;
  27
  28 unsigned long port_serial = 1; /* must be 1, because 0== no port */
  29
  30
  31 /* free epointlist relation
  32  */
  33 void Port::free_epointlist(struct epoint_list *epointlist)
  34 {
  35         struct epoint_list *temp, **tempp;
  36
  37         temp = p_epointlist;
  38         tempp = &p_epointlist;
  39         while(temp)
  40         {
  41                 if (temp == epointlist)
  42                         break;
  43
  44                 tempp = &temp->next;
  45                 temp = temp->next;
  46         }
  47         if (temp == 0)
  48         {
  49                 PERROR("SOFTWARE ERROR: epointlist not in port's list.\n");
  50                 return;
  51         }
  52         /* detach */
  53         *tempp=temp->next;
  54
  55         /* free */
  56         PDEBUG(DEBUG_EPOINT, "PORT(%d) removed epoint from port\n", p_serial);
  57         memset(temp, 0, sizeof(struct epoint_list));
  58         free(temp);
  59         ememuse--;
  60 }
  61
  62
  63 void Port::free_epointid(unsigned long epoint_id)
  64 {
  65         struct epoint_list *temp, **tempp;
  66
  67         temp = p_epointlist;
  68         tempp = &p_epointlist;
  69         while(temp)
  70         {
  71                 if (temp->epoint_id == epoint_id)
  72                         break;
  73
  74                 tempp = &temp->next;
  75                 temp = temp->next;
  76         }
  77         if (temp == 0)
  78         {
  79                 PERROR("epoint_id not in port's list, exitting.\n");
  80                 return;
  81         }
  82         /* detach */
  83         *tempp=temp->next;
  84
  85         /* free */
  86         PDEBUG(DEBUG_EPOINT, "PORT(%d) removed epoint from port\n", p_serial);
  87         memset(temp, 0, sizeof(struct epoint_list));
  88         free(temp);
  89         ememuse--;
  90 }
  91
  92
  93 /* create new epointlist relation
  94  */
  95 struct epoint_list *Port::epointlist_new(unsigned long epoint_id)
  96 {
  97         struct epoint_list *epointlist, **epointlistpointer;
  98
  99         /* epointlist structure */
 100         epointlist = (struct epoint_list *)calloc(1, sizeof(struct epoint_list));
 101         if (!epointlist)
 102         {
 103                 PERROR("no mem for allocating epoint_list\n");
 104                 return(0);
 105         }
 106         ememuse++;
 107         PDEBUG(DEBUG_EPOINT, "PORT(%d) allocating epoint_list.\n", p_serial);
 108         memset(epointlist, 0, sizeof(struct epoint_list));
 109
 110         /* add epoint_list to chain */
 111         epointlist->next = NULL;
 112         epointlistpointer = &p_epointlist;
 113         while(*epointlistpointer)
 114                 epointlistpointer = &((*epointlistpointer)->next);
 115         *epointlistpointer = epointlist;
 116
 117         /* link to epoint */
 118         epointlist->epoint_id = epoint_id;
 119         epointlist->active = 1;
 120
 121         return(epointlist);
 122 }
 123
 124
 125 /*
 126  * port constructor
 127  */
 128 Port::Port(int type, char *portname, struct port_settings *settings)
 129 {
 130         class Port *temp, **tempp;
 131
 132         PDEBUG(DEBUG_PORT, "new port of type %d, name '%s'\n", type, portname);
 133
 134         /* initialize object */
 135         if (settings)
 136                 memcpy(&p_settings, settings, sizeof(struct port_settings));
 137         else
 138         {
 139                 memset(&p_settings, 0, sizeof(p_settings));
 140                 SCPY(p_settings.tones_dir, options.tones_dir);
 141         }
 142         SCPY(p_name, portname);
 143         SCPY(p_tone_dir, p_settings.tones_dir); // just to be sure
 144         p_last_tv_sec = 0;
 145         p_last_tv_msec = 0;
 146         p_type = type;
 147         p_serial = port_serial++;
 148         p_debug_nothingtosend = 0;
 149         p_tone_fh = -1;
 150         p_tone_fetched = NULL;
 151         p_tone_name[0] = '\0';
 152 //      p_knock_fh = -1;
 153 //      p_knock_fetched = NULL;
 154         p_state = PORT_STATE_IDLE;
 155         p_epointlist = NULL;
 156         memset(&p_callerinfo, 0, sizeof(p_callerinfo));
 157         memset(&p_dialinginfo, 0, sizeof(p_dialinginfo));
 158         memset(&p_connectinfo, 0, sizeof(p_connectinfo));
 159         memset(&p_redirinfo, 0, sizeof(p_redirinfo));
 160         memset(&p_capainfo, 0, sizeof(p_capainfo));
 161         memset(p_mixer_buffer, 0, sizeof(p_mixer_buffer));
 162         memset(p_record_buffer, 0, sizeof(p_record_buffer));
 163         memset(p_stereo_buffer, 0, sizeof(p_stereo_buffer));
 164         p_mixer_rel = NULL;
 165         p_mixer_readp = 0;
 166         p_echotest = 0;
 167         next = NULL;
 168         p_record = NULL;
 169         p_record_type = 0;
 170         p_record_length = 0;
 171         p_record_filename[0] = '\0';
 172
 173         /* append port to chain */
 174         temp = port_first;
 175         tempp = &port_first;
 176         while(temp)
 177         {
 178                 tempp = &temp->next;
 179                 temp = temp->next;
 180         }
 181         *tempp = this;
 182
 183         classuse++;
 184 }
 185
 186
 187 /*
 188  * port destructor
 189  */
 190 Port::~Port(void)
 191 {
 192         struct mixer_relation *relation, *rtemp;
 193         class Port *temp, **tempp;
 194         struct message *message;
 195
 196         if (p_record)
 197                 close_record(0);
 198
 199         classuse--;
 200
 201         PDEBUG(DEBUG_PORT, "removing port of type %d, name '%s'\n", p_type, p_name);
 202
 203         /* free mixer relation chain */
 204         relation = p_mixer_rel;
 205         while(relation)
 206         {
 207                 rtemp = relation;
 208                 relation = relation->next;
 209                 memset(rtemp, 0, sizeof(struct mixer_relation));
 210                 free(rtemp);
 211                 pmemuse--;
 212         }
 213         p_mixer_rel = NULL; /* beeing paranoid */
 214
 215         /* disconnect port from endpoint */
 216         while(p_epointlist)
 217         {
 218                 /* send disconnect */
 219                 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
 220                 message->param.disconnectinfo.cause = 16;
 221                 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 222                 message_put(message);
 223                 /* remove endpoint */
 224                 free_epointlist(p_epointlist);
 225         }
 226
 227         /* remove port from chain */
 228         temp=port_first;
 229         tempp=&port_first;
 230         while(temp)
 231         {
 232                 if (temp == this)
 233                         break;
 234                 tempp = &temp->next;
 235                 temp = temp->next;
 236         }
 237         if (temp == NULL)
 238         {
 239                 PERROR("PORT(%s) port not in port's list.\n", p_name);
 240                 exit(-1);
 241         }
 242         /* detach */
 243         *tempp=this->next;
 244
 245         /* close open tones file */
 246         if (p_tone_fh >= 0)
 247         {
 248                 close(p_tone_fh);
 249                 p_tone_fh = -1;
 250                 fhuse--;
 251         }
 252         p_tone_fetched = NULL;
 253 }
 254
 255 PORT_STATE_NAMES
 256
 257 /* set new endpoint state
 258  */
 259 void Port::new_state(int state)
 260 {
 261         PDEBUG(DEBUG_PORT, "PORT(%s) new state %s --> %s\n", p_name, state_name[p_state], state_name[state]);
 262         p_state = state;
 263 }
 264
 265
 266 /*
 267  * find the port with port_id
 268  */
 269 class Port *find_port_id(unsigned long port_id)
 270 {
 271         class Port *port = port_first;
 272
 273         while(port)
 274         {
 275 //printf("comparing: '%s' with '%s'\n", name, port->name);
 276                 if (port->p_serial == port_id)
 277                         return(port);
 278                 port = port->next;
 279         }
 280
 281         return(NULL);
 282 }
 283
 284
 285 /*
 286  * set echotest
 287  */
 288 void Port::set_echotest(int echotest)
 289 {
 290         p_echotest = echotest;
 291 }
 292
 293
 294 /*
 295  * set the file in the tone directory with the given name
 296  */
 297 void Port::set_tone(char *dir, char *name)
 298 {
 299         int fh;
 300         char filename[128];
 301
 302         if (name == NULL)
 303                 name = "";
 304
 305         /* no counter, no eof, normal speed */
 306         p_tone_counter = 0;
 307         p_tone_eof = 0;
 308         p_tone_speed = 1;
 309         p_tone_codec = CODEC_LAW;
 310
 311         if (p_tone_fh >= 0)
 312         {
 313                 close(p_tone_fh);
 314                 p_tone_fh = -1;
 315                 fhuse--;
 316         }
 317         p_tone_fetched = NULL;
 318
 319         if (name[0])
 320         {
 321                 if (name[0] == '/')
 322                 {
 323                         SPRINT(p_tone_name, "%s", name);
 324                         p_tone_dir[0] = '\0';
 325                 } else
 326                 {
 327                         SCPY(p_tone_dir, dir);
 328                         SCPY(p_tone_name, name);
 329                 }
 330         } else
 331         {
 332                 p_tone_name[0]= '\0';
 333                 p_tone_dir[0]= '\0';
 334                 return;
 335         }
 336
 337         if (!!strncmp(name,"cause_",6))
 338                 return;
 339
 340         /* now we check if the cause exists, otherwhise we use error tone. */
 341         if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, 0, 0)))
 342         {
 343                 p_tone_fetched = NULL;
 344                 return;
 345         }
 346         SPRINT(filename, "%s_loop", p_tone_name);
 347         if ((p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, 0, 0)))
 348         {
 349                 p_tone_fetched = NULL;
 350                 return;
 351         }
 352         SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
 353         if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0)
 354         {
 355                 close(fh);
 356                 return;
 357         }
 358         SPRINT(filename, "%s/%s/%s_loop", INSTALL_DATA, p_tone_dir, p_tone_name);
 359         if ((fh=open_tone(filename, &p_tone_codec, 0, 0)) >= 0)
 360         {
 361                 close(fh);
 362                 return;
 363         }
 364
 365         if (!strcmp(name,"cause_00") || !strcmp(name,"cause_10"))
 366         {
 367                 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using release tone\n", p_name, name+6);
 368                 SPRINT(p_tone_name,"release");
 369         } else
 370         if (!strcmp(name,"cause_11"))
 371         {
 372                 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using busy tone\n", p_name, name+6);
 373                 SPRINT(p_tone_name,"busy");
 374         } else
 375         {
 376                 PDEBUG(DEBUG_PORT, "PORT(%s) Given Cause 0x%s has no tone, using error tone\n", p_name, name+6);
 377                 SPRINT(p_tone_name,"error");
 378         }
 379 }
 380
 381
 382 /*
 383  * set the file in the tone directory for vbox playback
 384  * also set the play_eof-flag
 385  */
 386 void Port::set_vbox_tone(char *dir, char *name)
 387 {
 388         char filename[256];
 389
 390         p_tone_speed = 1;
 391         p_tone_counter = 0;
 392         p_tone_codec = CODEC_LAW;
 393         p_tone_eof = 1;
 394
 395         if (p_tone_fh >= 0)
 396         {
 397                 close(p_tone_fh);
 398                 p_tone_fh = -1;
 399                 fhuse--;
 400         }
 401         p_tone_fetched = NULL;
 402
 403         SPRINT(p_tone_dir,  dir);
 404         SPRINT(p_tone_name,  name);
 405
 406         /* now we check if the cause exists, otherwhise we use error tone. */
 407         if (p_tone_dir[0])
 408         {
 409                 if ((p_tone_fetched=open_tone_fetched(p_tone_dir, p_tone_name, &p_tone_codec, &p_tone_size, &p_tone_left)))
 410                 {
 411                         PDEBUG(DEBUG_PORT, "PORT(%s) opening fetched tone: %s\n", p_name, p_tone_name);
 412                         return;
 413                 }
 414                 SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
 415                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0)
 416                 {
 417                         fhuse++;
 418                         PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
 419                         return;
 420                 }
 421         } else
 422         {
 423                 SPRINT(filename, "%s", p_tone_name);
 424                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) >= 0)
 425                 {
 426                         fhuse++;
 427                         PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename);
 428                         return;
 429                 }
 430         }
 431 }
 432
 433
 434 /*
 435  * set the file in the given directory for vbox playback
 436  * also set the eof-flag
 437  * also set the counter-flag
 438  */
 439 void Port::set_vbox_play(char *name, int offset)
 440 {
 441         signed long size;
 442         struct message *message;
 443
 444         /* use ser_box_tone() */
 445         set_vbox_tone("", name);
 446         if (p_tone_fh < 0)
 447                 return;
 448
 449         /* enable counter */
 450         p_tone_counter = 1;
 451
 452         /* seek */
 453         if (p_tone_name[0])
 454         {
 455                 /* send message with counter value */
 456                 if (p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist))
 457                 {
 458                         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
 459                         message->param.counter.current = offset;
 460                         message->param.counter.max = size;
 461                         message_put(message);
 462                 }
 463         }
 464 }
 465
 466
 467 /*
 468  * set the playback speed (for recording playback with different speeds)
 469  */
 470 void Port::set_vbox_speed(int speed)
 471 {
 472         /* enable vbox play mode */
 473         p_tone_speed = speed;
 474 }
 475
 476 /*
 477  * read from the given file as specified in port_set_tone and return sample data
 478  * silence is appended if sample ends, but only the number of samples with tones are returned
 479  */
 480 int Port::read_audio(unsigned char *buffer, int length)
 481 {
 482         int l,len;
 483         int readp;
 484         int nodata=0; /* to detect 0-length files and avoid endless reopen */
 485         char filename[128];
 486         int tone_left_before; /* temp variable to determine the change in p_tone_left */
 487
 488         /* nothing */
 489         if (length == 0)
 490                 return(0);
 491
 492         len = length;
 493         codec_in = p_tone_codec;
 494
 495         /* if there is no tone set, use silence */
 496         if (p_tone_name[0] == 0)
 497         {
 498 rest_is_silence:
 499                 memset(buffer, (options.law=='a')?0x2a:0xff, len); /* silence */
 500                 goto done;
 501         }
 502
 503         /* if the file pointer is not open, we open it */
 504         if (p_tone_fh<0 && p_tone_fetched==NULL)
 505         {
 506                 if (p_tone_dir[0])
 507                 {
 508                         SPRINT(filename, "%s", p_tone_name);
 509                         /* if file does not exist */
 510                         if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left)))
 511                         {
 512                                 SPRINT(filename, "%s/%s/%s", INSTALL_DATA, p_tone_dir, p_tone_name);
 513                                 /* if file does not exist */
 514                                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
 515                                 {
 516                                         PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
 517                                         goto try_loop;
 518                                 }
 519                                 fhuse++;
 520                         }
 521                 } else
 522                 {
 523                         SPRINT(filename, "%s", p_tone_name);
 524                         /* if file does not exist */
 525                         if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
 526                         {
 527                                 PDEBUG(DEBUG_PORT, "PORT(%s) no tone: %s\n", p_name, filename);
 528                                 goto try_loop;
 529                         }
 530                         fhuse++;
 531                 }
 532                 PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
 533         }
 534
 535 read_more:
 536         /* file descriptor is open read data */
 537         tone_left_before = p_tone_left;
 538         if (p_tone_fh >= 0)
 539         {
 540                 l = read_tone(p_tone_fh, buffer, p_tone_codec, len, p_tone_size, &p_tone_left, p_tone_speed);
 541                 if (l<0 || l>len) /* paranoia */
 542                         l=0;
 543                 buffer += l;
 544                 len -= l;
 545         }
 546         if (p_tone_fetched)
 547         {
 548                 l = read_tone_fetched(&p_tone_fetched, buffer, len, p_tone_size, &p_tone_left, p_tone_speed);
 549                 if (l<0 || l>len) /* paranoia */
 550                         l=0;
 551                 buffer += l;
 552                 len -= l;
 553         }
 554
 555         /* if counter is enabled, we check if we have a change */
 556         if (p_tone_counter && p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist))
 557         {
 558                 /* if we jumed to the next second */
 559                 if (((p_tone_size-p_tone_left)/8000) != (p_tone_size-tone_left_before)/8000)
 560                 {
 561 //printf("\nsize=%d left=%d\n\n",p_tone_size,p_tone_left);
 562                         struct message *message;
 563                         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_COUNTER);
 564                         message->param.counter.current = (p_tone_size-p_tone_left)/8000;
 565                         message->param.counter.max = -1;
 566                         message_put(message);
 567                 }
 568         }
 569
 570         if (len==0)
 571                 goto done;
 572
 573         if (p_tone_fh >= 0)
 574         {
 575                 close(p_tone_fh);
 576                 p_tone_fh = -1;
 577                 fhuse--;
 578         }
 579         p_tone_fetched = NULL;
 580
 581         if (l)
 582                 nodata=0;
 583
 584         /* if the file has 0-length */
 585         if (nodata>1)
 586         {
 587                 PDEBUG(DEBUG_PORT, "PORT(%s) 0-length loop: %s\n", p_name, filename);
 588                 p_tone_name[0]=0;
 589                 p_tone_dir[0]=0;
 590                 goto rest_is_silence;
 591         }
 592
 593         /* if eof is reached, or if the normal file cannot be opened, continue with the loop file if possible */
 594 try_loop:
 595         if (p_tone_eof && ACTIVE_EPOINT(p_epointlist))
 596         {
 597                 struct message *message;
 598                 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_TONE_EOF);
 599                 message_put(message);
 600         }
 601
 602         if (p_tone_dir[0])
 603         {
 604                 /* if file does not exist */
 605                 SPRINT(filename, "%s_loop", p_tone_name);
 606                 if (!(p_tone_fetched=open_tone_fetched(p_tone_dir, filename, &p_tone_codec, &p_tone_size, &p_tone_left)))
 607                 {
 608                         SPRINT(filename, "%s/%s/%s_loop", INSTALL_DATA, p_tone_dir, p_tone_name);
 609                         /* if file does not exist */
 610                         if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
 611                         {
 612                                 PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
 613                                 p_tone_dir[0] = '\0';
 614                                 p_tone_name[0] = '\0';
 615                 //              codec_in = CODEC_LAW;
 616                                 goto rest_is_silence;
 617                         }
 618                         fhuse++;
 619                 }
 620         } else
 621         {
 622                 SPRINT(filename, "%s_loop", p_tone_name);
 623                 /* if file does not exist */
 624                 if ((p_tone_fh=open_tone(filename, &p_tone_codec, &p_tone_size, &p_tone_left)) < 0)
 625                 {
 626                         PDEBUG(DEBUG_PORT, "PORT(%s) no tone loop: %s\n",p_name, filename);
 627                         p_tone_dir[0] = '\0';
 628                         p_tone_name[0] = '\0';
 629         //              codec_in = CODEC_LAW;
 630                         goto rest_is_silence;
 631                 }
 632                 fhuse++;
 633         }
 634         nodata++;
 635         PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename);
 636
 637         /* now we have opened the loop */
 638         goto read_more;
 639
 640 done:
 641         return(length-len);
 642 }
 643
 644
 645 /*
 646  * dummy for transmit function, since this must be inherited
 647  */
 648 void Port::transmit(unsigned char *buffer, int length, int tonelength)
 649 {
 650 }
 651
 652
 653 /* port handler:
 654  * process transmission clock */
 655 int Port::handler(void)
 656 {
 657         return(0);
 658 }
 659
 660 /* endpoint sends messages to the port
 661  * this is called by the message_epoint inherited by child classes
 662  * therefor a return=1 means: stop, no more processing
 663  */
 664 //extern struct message *dddebug;
 665 int Port::message_epoint(unsigned long epoint_id, int message_id, union parameter *param)
 666 {
 667         /* check if we got audio data from one remote port */
 668         switch(message_id)
 669         {
 670                 case MESSAGE_TONE: /* play tone */
 671                 PDEBUG(DEBUG_PORT, "PORT(%s) isdn port with (caller id %s) setting tone '%s' dir '%s'\n", p_name, p_callerinfo.id, param->tone.name, param->tone.dir);
 672                 set_tone(param->tone.dir,param->tone.name);
 673                 return(1);
 674
 675                 case MESSAGE_DATA: /* tx-data from upper layer */
 676                 fromup(param->data.data, param->data.len);
 677                 return(1);
 678
 679                 case MESSAGE_VBOX_TONE: /* play tone of answering machine */
 680                 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine tone '%s' '%s'\n", p_name, param->tone.dir, param->tone.name);
 681                 set_vbox_tone(param->tone.dir, param->tone.name);
 682                 return(1);
 683
 684                 case MESSAGE_VBOX_PLAY: /* play recording of answering machine */
 685                 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine file to play '%s' (offset %d seconds)\n", p_name, param->play.file, param->play.offset);
 686                 set_vbox_play(param->play.file, param->play.offset);
 687                 return(1);
 688
 689                 case MESSAGE_VBOX_PLAY_SPEED: /* set speed of playback (recording of answering machine) */
 690                 PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine playback speed %d (times)\n", p_name, param->speed);
 691                 set_vbox_speed(param->speed);
 692                 return(1);
 693
 694         }
 695
 696         return(0);
 697 }
 698
 699
 700 /* wave header structure */
 701 struct fmt {
 702         unsigned short  stereo; /* 1 = mono, 2 = stereo */
 703         unsigned short  channels; /* number of channels */
 704         unsigned long   sample_rate; /* sample rate */
 705         unsigned long   data_rate; /* data rate */
 706         unsigned short  bytes_sample; /* bytes per sample (all channels) */
 707         unsigned short  bits_sample; /* bits per sample (one channel) */
 708 };
 709
 710
 711 /*
 712  * open record file (actually a wave file with empty header which will be
 713  * written before close, because we do not know the size yet)
 714  * type=1 record annoucement,  type=0 record audio stream, type=2 record vbox
 715  */
 716 int Port::open_record(int type, int vbox, int skip, char *extension, int anon_ignore, char *vbox_email, int vbox_email_file)
 717 {
 718         /* RIFFxxxxWAVEfmt xxxx(fmt-size)dataxxxx... */
 719         char dummyheader[8+4+8+sizeof(fmt)+8];
 720         char filename[256];
 721
 722         if (!extension)
 723         {
 724                 PERROR("Port(%d) not an extension\n", p_serial);
 725                 return(0);
 726         }
 727         SCPY(p_record_extension, extension);
 728         p_record_anon_ignore = anon_ignore;
 729         SCPY(p_record_vbox_email, vbox_email);
 730         p_record_vbox_email_file = vbox_email_file;
 731
 732         if (p_record)
 733         {
 734                 PERROR("Port(%d) already recording\n", p_serial);
 735                 return(0);
 736         }
 737
 738         if (vbox != 0)
 739                 SPRINT(filename, "%s/%s/%s/vbox", INSTALL_DATA, options.extensions_dir, p_record_extension);
 740         else
 741                 SPRINT(filename, "%s/%s/%s/recordings", INSTALL_DATA, options.extensions_dir, p_record_extension);
 742         if (mkdir(filename, 0755) < 0)
 743         {
 744                 if (errno != EEXIST)
 745                 {
 746                         PERROR("Port(%d) cannot create directory '%s'\n", p_serial, filename);
 747                         return(0);
 748                 }
 749         }
 750
 751         if (vbox == 1)
 752                 UPRINT(strchr(filename,'\0'), "/announcement");
 753         else
 754                 UPRINT(strchr(filename,'\0'), "/%04d-%02d-%02d_%02d%02d%02d", now_tm->tm_year+1900, now_tm->tm_mon+1, now_tm->tm_mday, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 755         if (vbox == 2)
 756         {
 757                 p_record_vbox_year = now_tm->tm_year;
 758                 p_record_vbox_mon = now_tm->tm_mon;
 759                 p_record_vbox_mday = now_tm->tm_mday;
 760                 p_record_vbox_hour = now_tm->tm_hour;
 761                 p_record_vbox_min = now_tm->tm_min;
 762         }
 763
 764         /* check, if file exists (especially when an extension calls the same extension) */
 765         if (vbox != 1)
 766         if ((p_record = fopen(filename, "r")))
 767         {
 768                 fclose(p_record);
 769                 SCAT(filename, "_2nd");
 770         }
 771
 772         p_record = fopen(filename, "w");
 773         if (!p_record)
 774         {
 775                 PERROR("Port(%d) cannot record because file cannot be opened '%s'\n", p_serial, filename);
 776                 return(0);
 777         }
 778         fduse++;
 779
 780         p_record_type = type;
 781         p_record_vbox = vbox;
 782         p_record_skip = skip;
 783         p_record_length = 0;
 784         switch(p_record_type)
 785         {
 786                 case CODEC_MONO:
 787                 case CODEC_STEREO:
 788                 case CODEC_8BIT:
 789                 fwrite(dummyheader, sizeof(dummyheader), 1, p_record);
 790                 break;
 791
 792                 case CODEC_LAW:
 793                 break;
 794         }
 795         UCPY(p_record_filename, filename);
 796
 797         PDEBUG(DEBUG_PORT, "Port(%d) recording started with file name '%s'\n", p_serial, filename);
 798         return(1);
 799 }
 800
 801
 802 /*
 803  * close the recoding file, put header in front and rename
 804  */
 805 void Port::close_record(int beep)
 806 {
 807         static signed long beep_mono[] = {-10000, 10000, -10000, 10000, -10000, 10000, -10000, 10000, -10000, 10000, -10000, 10000, -10000, 10000, -10000, 10000};
 808         static unsigned char beep_8bit[] = {48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208, 48, 208};
 809         unsigned long size, wsize;
 810         struct fmt fmt;
 811         char filename[512], indexname[512];
 812         FILE *fp;
 813         int i, ii;
 814         char number[256], callerid[256];
 815         char *p;
 816         struct caller_info callerinfo;
 817         char *valid_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_.-!$%&/()=+*;~";
 818
 819         if (!p_record)
 820                 return;
 821
 822         memcpy(&callerinfo, &p_callerinfo, sizeof(struct caller_info));
 823         apply_callerid_restriction(p_record_anon_ignore, -1, callerinfo.id, &callerinfo.ntype, &callerinfo.present, &callerinfo.screen, callerinfo.voip, callerinfo.intern, callerinfo.name);
 824
 825         SCPY(number, p_dialinginfo.number);
 826         SCPY(callerid, numberrize_callerinfo(callerinfo.id, callerinfo.ntype));
 827         if (callerid[0] == '\0')
 828         {
 829                 if (callerinfo.present == INFO_PRESENT_RESTRICTED)
 830                         UCPY(callerid,"anonymous");
 831                 else
 832                         UCPY(callerid,"unknown");
 833         }
 834
 835         /* change verboten digits */
 836         p = callerid;
 837         while((p=strchr(p,'*')))
 838                 *(p++) = 'x';
 839         p = callerid;
 840         while((p=strchr(p,'/')))
 841                 *(p++) = 'x';
 842         p = number;
 843         while((p=strchr(p,'*')))
 844                 *(p++) = 'x';
 845         p = number;
 846         while((p=strchr(p,'/')))
 847                 *(p++) = 'x';
 848         i = 0;
 849         ii = strlen(callerid);
 850         while(i < ii)
 851         {
 852                 if (!strchr(valid_chars, callerid[i]))
 853                         callerid[i] = '_';
 854                 i++;
 855         }
 856         i = 0;
 857         ii = strlen(number);
 858         while(i < ii)
 859         {
 860                 if (!strchr(valid_chars, number[i]))
 861                         number[i] = '_';
 862                 i++;
 863         }
 864
 865         /* add beep to the end of recording */
 866         if (beep)
 867         switch(p_record_type)
 868         {
 869                 case CODEC_MONO:
 870                 i = 0;
 871                 while(i < beep)
 872                 {
 873                         fwrite(beep_mono, sizeof(beep_mono), 1, p_record);
 874                         i += sizeof(beep_mono);
 875                         p_record_length += sizeof(beep_mono);
 876                 }
 877                 break;
 878                 case CODEC_8BIT:
 879                 i = 0;
 880                 while(i < beep)
 881                 {
 882                         fwrite(beep_8bit, sizeof(beep_8bit), 1, p_record);
 883                         i += sizeof(beep_8bit);
 884                         p_record_length += sizeof(beep_8bit);
 885                 }
 886                 break;
 887 #if 0
 888                 case CODEC_LAW:
 889                 i = 0;
 890                 while(i < beep)
 891                 {
 892                         fwrite(beep_law, sizeof(beep_law), 1, p_record);
 893                         i += sizeof(beep_law);
 894                         p_record_length += sizeof(beep_law);
 895                 }
 896                 break;
 897 #endif
 898                 default:
 899                 PERROR("codec %d not supported for beep adding\n", p_record_type);
 900         }
 901
 902         /* complete header */
 903         switch(p_record_type)
 904         {
 905                 case CODEC_MONO:
 906                 case CODEC_STEREO:
 907                 case CODEC_8BIT:
 908                 /* cue */
 909                 fprintf(p_record, "cue %c%c%c%c%c%c%c%c", 4, 0, 0, 0, 0,0,0,0);
 910
 911                 /* LIST */
 912                 fprintf(p_record, "LIST%c%c%c%cadtl", 4, 0, 0, 0);
 913
 914                 /* go to header */
 915                 fseek(p_record, 0, SEEK_SET);
 916
 917                 /* WAVEfmt xxxx(fmt-size)dataxxxx[data]cue xxxx0000LISTxxxxadtl*/
 918                 size = p_record_length;
 919                 wsize = 4+8+sizeof(fmt)+8+size+8+4+8+4;
 920
 921                 /* RIFF */
 922                 fprintf(p_record, "RIFF%c%c%c%c", (unsigned char)(wsize&0xff), (unsigned char)((wsize>>8)&0xff), (unsigned char)((wsize>>16)&0xff), (unsigned char)(wsize>>24));
 923
 924                 /* WAVE */
 925                 fprintf(p_record, "WAVE");
 926
 927                 /* fmt */
 928                 fprintf(p_record, "fmt %c%c%c%c", sizeof(fmt), 0, 0, 0);
 929                 switch(p_record_type)
 930                 {
 931                         case CODEC_MONO:
 932                         fmt.stereo = 1;
 933                         fmt.channels = 1;
 934                         fmt.sample_rate = 8000; /* samples/sec */
 935                         fmt.data_rate = 16000; /* full data rate */
 936                         fmt.bytes_sample = 2; /* all channels */
 937                         fmt.bits_sample = 16; /* one channel */
 938                         break;
 939
 940                         case CODEC_STEREO:
 941                         fmt.stereo = 1;
 942                         fmt.channels = 2;
 943                         fmt.sample_rate = 8000; /* samples/sec */
 944                         fmt.data_rate = 32000; /* full data rate */
 945                         fmt.bytes_sample = 4; /* all channels */
 946                         fmt.bits_sample = 16; /* one channel */
 947                         break;
 948
 949                         case CODEC_8BIT:
 950                         fmt.stereo = 1;
 951                         fmt.channels = 1;
 952                         fmt.sample_rate = 8000; /* samples/sec */
 953                         fmt.data_rate = 8000; /* full data rate */
 954                         fmt.bytes_sample = 1; /* all channels */
 955                         fmt.bits_sample = 8; /* one channel */
 956                         break;
 957                 }
 958                 fwrite(&fmt, sizeof(fmt), 1, p_record);
 959
 960                 /* data */
 961                 fprintf(p_record, "data%c%c%c%c", (unsigned char)(size&0xff), (unsigned char)((size>>8)&0xff), (unsigned char)((size>>16)&0xff), (unsigned char)(size>>24));
 962
 963                 /* rename file */
 964                 if (p_record_vbox == 1)
 965                         SPRINT(filename, "%s.wav", p_record_filename);
 966                 else
 967                         SPRINT(filename, "%s_%s-%s.wav", p_record_filename, callerid, number);
 968                 break;
 969
 970                 case CODEC_LAW:
 971                 /* rename file */
 972                 if (p_record_vbox == 1)
 973                         SPRINT(filename, "%s.isdn", p_record_filename);
 974                 else
 975                         SPRINT(filename, "%s_%s-%s.isdn", p_record_filename, callerid, number);
 976                 break;
 977         }
 978
 979         fclose(p_record);
 980         fduse--;
 981         p_record = NULL;
 982
 983         if (rename(p_record_filename, filename) < 0)
 984         {
 985                 PERROR("Port(%d) cannot rename from '%s' to '%s'\n", p_serial, p_record_filename, filename);
 986                 return;
 987         }
 988
 989         PDEBUG(DEBUG_PORT, "Port(%d) recording is written and renamed to '%s' and must have the following size:%lu raw:%lu samples:%lu\n", p_serial, filename, wsize+8, size, size>>1);
 990
 991         if (p_record_vbox == 2)
 992         {
 993                 SPRINT(indexname, "%s/%s/%s/vbox/index", INSTALL_DATA, options.extensions_dir, p_record_extension);
 994                 if ((fp = fopen(indexname,"a")))
 995                 {
 996                         fduse++;
 997
 998                         /* remove path from file name */
 999                         p = filename;
1000                         while(strchr(p, '/'))
1001                                 p = strchr(p, '/')+1;
1002                         fprintf(fp, "%s %d %d %d %d %d %s\n", p, p_record_vbox_year, p_record_vbox_mon, p_record_vbox_mday, p_record_vbox_hour, p_record_vbox_min, callerid);
1003
1004                         fclose(fp);
1005                         fduse--;
1006                 } else
1007                 {
1008                         PERROR("Port(%d) cannot open index file '%s' to append.\n", p_serial, indexname);
1009                 }
1010
1011                 /* send email with sample*/
1012                 if (p_record_vbox_email[0])
1013                 {
1014                         send_mail(p_record_vbox_email_file?filename:(char *)"", callerid, callerinfo.intern, callerinfo.name, p_record_vbox_email, p_record_vbox_year, p_record_vbox_mon, p_record_vbox_mday, p_record_vbox_hour, p_record_vbox_min, p_record_extension);
1015                 }
1016         }
1017 }
1018
1019
1020 /*
1021  * recording function
1022  * Records all data from down and from up into one single stream.
1023  * Both streams may have gaps or jitter.
1024  * A Jitter buffer for both streams is used to compensate jitter.
1025  *
1026  * If one stream (dir) received packets, they are stored to a
1027  * buffer to wait for the other stream (dir), so both streams can
1028  * be combined. If the buffer is full, it's read pointer is written
1029  * without mixing stream.
1030  * A flag is used to indicate what stream is currently in buffer.
1031  *
1032  * NOTE: First stereo sample (odd) is from down, second is from up.
1033  */
1034 alle buffer initialisieren
1035 record nur aufrufen, wenn recorded wird.
1036 restlicher buffer wegschreiben beim schliessen
1037 void Port::record(char *data, int length, int dir_fromup)
1038 {
1039         unsigned char write_buffer[1024], *d;
1040         signed short *s;
1041         int r, w;
1042         signed long sample;
1043
1044         /* no recording */
1045         if (!p_record || !length)
1046                 return;
1047
1048         free = ((p_record_buffer_readp - p_record_buffer_writep - 1) & RECORD_BUFFER_MASK);
1049
1050         /* the buffer stores the same data stream */
1051         if (dir_fromup == p_record_buffer_dir)
1052         {
1053                 same_again:
1054
1055                 /* first write what we can to the buffer */
1056                 while(free && length)
1057                 {
1058                         p_record_buffer[p_record_buffer_writep] = audio_law_to_s32(*data++);
1059                         p_record_buffer_writep = (p_record_buffer_writep + 1) & RECORD_BUFFER_MASK;
1060                         free--;
1061                         length--;
1062                 }
1063                 /* all written, so we return */
1064                 if (!length)
1065                         return;
1066                 /* still data left, buffer is full, so we need to write to file */
1067                 switch(p_record_type)
1068                 {
1069                         case CODEC_MONO:
1070                         s = (signed short *)write_buffer;
1071                         i = 0;
1072                         while(i < 256)
1073                         {
1074                                 *s++ = p_record_buffer[p_record_buffer_readp];
1075                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1076                                 i++;
1077                         }
1078                         fwrite(write_buffer, 512, 1, p_record);
1079                         break;
1080
1081                         case CODEC_STEREO:
1082                         s = (signed short *)write_buffer;
1083                         if (p_record_buffer_dir)
1084                         {
1085                                 i = 0;
1086                                 while(i < 256)
1087                                 {
1088                                         *s++ = 0; /* nothing from down */
1089                                         *s++ = p_record_buffer[p_record_buffer_readp];
1090                                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1091                                         i++;
1092                                 }
1093                         } else
1094                         {
1095                                 i = 0;
1096                                 while(i < 256)
1097                                 {
1098                                         *s++ = p_record_buffer[p_record_buffer_readp];
1099                                         *s++ = 0; /* nothing from up */
1100                                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1101                                         i++;
1102                                 }
1103                         }
1104                         fwrite(write_buffer, 1024, 1, p_record);
1105                         break;
1106
1107                         case CODEC_8BIT:
1108                         d = write_buffer;
1109                         i = 0;
1110                         while(i < 256)
1111                         {
1112                                 *d++ = (p_record_buffer[p_record_buffer_readp]+0x8000) >> 8;
1113                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1114                                 i++;
1115                         }
1116                         fwrite(write_buffer, 512, 1, p_record);
1117                         break;
1118
1119                         case CODEC_LAW:
1120                         d = write_buffer;
1121                         i = 0;
1122                         while(i < 256)
1123                         {
1124                                 *d++ = audio_s16_to_law[p_record_buffer[p_record_buffer_readp] & 0xffff];
1125                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1126                                 i++;
1127                         }
1128                         fwrite(write_buffer, 256, 1, p_record);
1129                         break;
1130                 }
1131                 /* because we still have data, we write again */
1132                 free += sizeof(write_buffer);
1133                 goto same_again;
1134         }
1135
1136         /* the buffer store the other stream */
1137         different_again:
1138
1139         /* if buffer empty, change it */
1140         if (p_record_buffer_readp == p_record_buffer_writep)
1141         {
1142                 p_record_buffer_dir = dir_fromup;
1143                 goto same_again;
1144         }
1145         /* how much data can we mix ? */
1146         ii = (p_record_buffer_writep - p_record_buffer_readp) & RECORD_BUFFER_MASK;
1147         if (length < ii)
1148                 ii = length;
1149         /* write data mixed with the buffer */
1150         switch(p_record_type)
1151         {
1152                 case CODEC_MONO:
1153                 s = (signed short *)write_buffer;
1154                 i = 0;
1155                 while(i < ii)
1156                 {
1157                         sample = p_record_buffer[p_record_buffer_readp]
1158                                 + audio_law_to_s32(*data++);
1159                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1160                         if (sample < 32767)
1161                                 sample = -32767;
1162                         if (sample > 32768)
1163                                 sample = 32768;
1164                         *s++ = sample;
1165                         i++;
1166                 }
1167                 fwrite(write_buffer, ii<<1, 1, p_record);
1168                 break;
1169
1170                 case CODEC_STEREO:
1171                 s = (signed short *)write_buffer;
1172                 if (p_record_buffer_dir)
1173                 {
1174                         i = 0;
1175                         while(i < ii)
1176                         {
1177                                 *s++ = audio_law_to_s32(*data++);
1178                                 *s++ = p_record_buffer[p_record_buffer_readp];
1179                                 p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1180                                 i++;
1181                         }
1182                 } else
1183                 {
1184                         i = 0;
1185                         while(i < ii)
1186                         {
1187                                 *s++ = p_record_buffer[p_record_buffer_readp];
1188                                 *s++ = audio_law_to_s32(*data++);
1189                                 i++;
1190                         }
1191                 }
1192                 fwrite(write_buffer, ii<<2, 1, p_record);
1193                 break;
1194
1195                 case CODEC_8BIT:
1196                 d = write_buffer;
1197                 i = 0;
1198                 while(i < ii)
1199                 {
1200                         sample = p_record_buffer[p_record_buffer_readp]
1201                                 + audio_law_to_s32(*data++);
1202                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1203                         if (sample < 32767)
1204                                 sample = -32767;
1205                         if (sample > 32768)
1206                                 sample = 32768;
1207                         *d++ = (sample+0x8000) >> 8;
1208                         i++;
1209                 }
1210                 fwrite(write_buffer, ii, 1, p_record);
1211                 break;
1212
1213                 case CODEC_LAW:
1214                 d = write_buffer;
1215                 i = 0;
1216                 while(i < ii)
1217                 {
1218                         sample = p_record_buffer[p_record_buffer_readp]
1219                                 + audio_law_to_s32(*data++);
1220                         p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
1221                         if (sample < 32767)
1222                                 sample = -32767;
1223                         if (sample > 32768)
1224                                 sample = 32768;
1225                         *d++ = audio_s16_to_law[sample & 0xffff];
1226                         i++;
1227                 }
1228                 fwrite(write_buffer, ii, 1, p_record);
1229                 break;
1230         }
1231         length -= ii;
1232         /* data, but buffer empty */
1233         if (length)
1234         {
1235                 p_record_buffer_dir = dir_fromup;
1236                 goto same_again;
1237         }
1238         /* no data (maybe buffer) */
1239         return;
1240
1241 }
1242
1243
1244 /*
1245  * enque data from upper buffer
1246  */
1247 iniialisieren der werte
1248 void Port::txfromup(unsigned char *data, int length)
1249 {
1250
1251         /* no recording */
1252         if (!length)
1253                 return;
1254
1255         /* get free samples in buffer */
1256         free = ((p_fromup_buffer_readp - p_fromup_buffer_writep - 1) & FROMUP_BUFFER_MASK);
1257         if (free < length)
1258         {
1259                 PDEBUG(DEBUG_PORT, "Port(%d): fromup_buffer overflows, this shall not happen under normal conditions\n", p_serial);
1260                 return;
1261         }
1262
1263         /* write data to buffer and return */
1264         while(length)
1265         {
1266                 p_fromup_buffer[p_fromup_buffer_writep] = *data++;
1267                 p_fromup_buffer_writep = (p_fromup_buffer_writep + 1) & FROMUP_BUFFER_MASK;
1268                 length--;
1269         }
1270         return; // must return, because length is 0
1271 }
1272