main.c

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** Linux Call Router                                                         **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** Main function                                                             **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13
  14 MESSAGES
  15
  16 double now_d, last_d;
  17 time_t now;
  18 struct tm *now_tm;
  19 struct timeval now_tv;
  20 struct timezone now_tz;
  21 #define GET_NOW() \
  22         { \
  23                 gettimeofday(&now_tv, &now_tz); \
  24                 now_d = ((double)(now_tv.tv_usec))/1000000 + now_tv.tv_sec; \
  25                 now = now_tv.tv_sec; \
  26                 now_tm = localtime(&now); \
  27         }
  28
  29 FILE *debug_fp = NULL;
  30 int quit=0;
  31
  32 #if 0
  33 struct lcr_fdset lcr_fdset[FD_SETSIZE];
  34 #endif
  35
  36 pthread_mutex_t mutexd; // debug output mutex
  37 pthread_mutex_t mutext; // trace output mutex
  38 pthread_mutex_t mutexe; // error output mutex
  39 //pthread_mutex_t mutex_lcr; // lcr process mutex
  40
  41 int memuse = 0;
  42 int mmemuse = 0;
  43 int cmemuse = 0;
  44 int ememuse = 0;
  45 int pmemuse = 0;
  46 int amemuse = 0;
  47 int rmemuse = 0;
  48 int classuse = 0;
  49 int fduse = 0;
  50 int fhuse = 0;
  51
  52 char *debug_prefix = 0;
  53 int debug_count = 0;
  54 int last_debug = 0;
  55 int debug_newline = 1;
  56 int nooutput = 0;
  57
  58 void debug_usleep(int msec, char *file, int line, int hour, int min, int sec)
  59 {
  60         usleep(msec);
  61 }
  62
  63 void debug(const char *function, int line, char *prefix, char *buffer)
  64 {
  65         /* if we have a new debug count, we add a mark */
  66         if (last_debug != debug_count)
  67         {
  68                 last_debug = debug_count;
  69                 if (!nooutput)
  70                         printf("\033[34m--------------------- %04d.%02d.%02d %02d:%02d:%02d %06d\033[36m\n", 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, debug_count%1000000);
  71                 if (debug_fp)
  72                         fprintf(debug_fp, "--------------------- %04d.%02d.%02d %02d:%02d:%02d %06d\n", 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, debug_count%1000000);
  73         }
  74
  75         if (!nooutput)
  76         {
  77                 if (debug_newline)
  78                         printf("\033[32m%06d %s\033[37m%s", debug_count%1000000, prefix?prefix:"", prefix?" ":"");
  79                 if (function)
  80                         printf("(in %s() line %d): %s", function, line, buffer);
  81                 else
  82                         printf("%s", buffer);
  83         }
  84
  85         if (debug_fp)
  86         {
  87                 if (debug_newline)
  88                 {
  89                         if (function)
  90                                 fprintf(debug_fp, "%s%s(in %s() line %d): %s", prefix?prefix:"", prefix?" ":"", function, line, buffer);
  91                         else
  92                                 fprintf(debug_fp, "%s%s: %s", prefix?prefix:"", prefix?" ":"", buffer);
  93                 }
  94         }
  95
  96         debug_newline = 0;
  97         if (buffer[0])
  98                 if (buffer[strlen(buffer)-1] == '\n')
  99                         debug_newline = 1;
 100 }
 101
 102
 103 void _printdebug(const char *function, int line, unsigned int mask, const char *fmt, ...)
 104 {
 105         char buffer[4096];
 106         va_list args;
 107
 108         if (!(options.deb & mask))
 109                 return;
 110         pthread_mutex_lock(&mutexd);
 111
 112         va_start(args,fmt);
 113         VUNPRINT(buffer,sizeof(buffer)-1,fmt,args);
 114         buffer[sizeof(buffer)-1]=0;
 115         va_end(args);
 116
 117         debug(function, line, debug_prefix, buffer);
 118
 119         pthread_mutex_unlock(&mutexd);
 120 }
 121
 122 void _printerror(const char *function, int line, const char *fmt, ...)
 123 {
 124         char buffer[4096];
 125         va_list args;
 126
 127         pthread_mutex_lock(&mutexe);
 128
 129         va_start(args,fmt);
 130         VUNPRINT(buffer,sizeof(buffer)-1,fmt,args);
 131         buffer[sizeof(buffer)-1]=0;
 132         va_end(args);
 133
 134         if (options.deb)
 135                 debug(function, line, "ERROR", buffer);
 136         else /* only if we do not debug */
 137         {
 138                 if (function)
 139                         fprintf(stderr, "ERROR (in %s() line %d) %s", function, line, buffer);
 140                 else
 141                         fprintf(stderr, "ERROR %s", buffer);
 142         }
 143
 144         pthread_mutex_unlock(&mutexe);
 145 }
 146
 147
 148 void sighandler(int sigset)
 149 {
 150         struct sched_param schedp;
 151
 152         if (sigset == SIGHUP)
 153                 return;
 154         if (sigset == SIGPIPE)
 155                 return;
 156         if (!quit)
 157         {
 158                 quit = sigset;
 159                 /* set scheduler & priority */
 160                 if (options.schedule > 1)
 161                 {
 162                         memset(&schedp, 0, sizeof(schedp));
 163                         schedp.sched_priority = 0;
 164                         sched_setscheduler(0, SCHED_OTHER, &schedp);
 165                 }
 166                 fprintf(stderr, "LCR: Signal received: %d\n", sigset);
 167                 PDEBUG(DEBUG_LOG, "Signal received: %d\n", sigset);
 168         }
 169 }
 170
 171
 172 /*
 173  * the main
 174  */
 175 int main(int argc, char *argv[])
 176 {
 177         int                     ret = -1;
 178         int                     lockfd = -1; /* file lock */
 179         struct lcr_msg          *message;
 180         class Port              *port;
 181         class Endpoint          *epoint;
 182         class Join              *join;
 183         int                     i;
 184         int                     all_idle;
 185         char                    prefix_string[64];
 186         struct sched_param      schedp;
 187         char                    *debug_prefix = "alloc";
 188         int                     created_mutexd = 0,/* created_mutext = 0,*/ created_mutexe = 0,
 189                                 created_lock = 0, created_signal = 0, created_debug = 0,
 190                                 created_misdn = 0;
 191         int                     idletime = 0, idlecheck = 0;
 192         char                    tracetext[256];
 193
 194 #if 0
 195         /* init fdset */
 196         memset(lcr_fdset, 0, sizeof(lcr_fdset));
 197 #endif
 198
 199         /* lock LCR process */
 200 //      pthread_mutex_lock(&mutex_lcr);
 201
 202         /* current time */
 203         GET_NOW();
 204
 205         /* show version */
 206         printf("\n** %s  Version %s\n\n", NAME, VERSION_STRING);
 207
 208         /* show options */
 209         if (argc <= 1)
 210         {
 211                 usage:
 212                 printf("\n");
 213                 printf("Usage: lcr (query | start | fork | rules | route)\n");
 214                 printf("query     = Show available isdn ports.\n");
 215                 printf("start     = Run lcr normally, abort with CTRL+C.\n");
 216                 printf("fork      = Do daemon fork and run as background process.\n");
 217                 printf("interface = Get help of available interface syntax.\n");
 218                 printf("rules     = Get help of available routing rule syntax.\n");
 219                 printf("rules [action] = Get individual help for given action.\n");
 220 //              printf("route = Show current routing as it is parsed.\n");
 221                 printf("\n");
 222                 ret = 999;
 223                 goto free;
 224         }
 225
 226         /* init crc */
 227         crc_init();
 228
 229         /* check for root (real or effective) */
 230         if (getuid() && geteuid())
 231         {
 232                 fprintf(stderr, "Please run %s as super-user.\n", NAME);
 233                 goto free;
 234         }
 235
 236         /* the mutex init */
 237         if (pthread_mutex_init(&mutexd, NULL))
 238         {
 239                 fprintf(stderr, "cannot create 'PDEBUG' mutex\n");
 240                 goto free;
 241         }
 242         created_mutexd = 1;
 243 //      if (pthread_mutex_init(&mutext, NULL))
 244 //      {
 245 //              fprintf(stderr, "cannot create 'trace' mutex\n");
 246 //              goto free;
 247 //      }
 248 //      created_mutext = 1;
 249         if (pthread_mutex_init(&mutexe, NULL))
 250         {
 251                 fprintf(stderr, "cannot create 'PERROR' mutex\n");
 252                 goto free;
 253         }
 254         created_mutexe = 1;
 255
 256         /* show interface */
 257         if (!(strcasecmp(argv[1],"interface")))
 258         {
 259                 doc_interface();
 260                 ret = 0;
 261                 goto free;
 262         }
 263
 264         /* show rules */
 265         if (!(strcasecmp(argv[1],"rules")))
 266         {
 267                 if (argc <= 2)
 268                         doc_rules(NULL);
 269                 else
 270                         doc_rules(argv[2]);
 271                 ret = 0;
 272                 goto free;
 273         }
 274
 275         /* query available isdn ports */
 276         if (!(strcasecmp(argv[1],"query")))
 277         {
 278                 mISDN_port_info();
 279                 ret = 0;
 280                 goto free;
 281         }
 282
 283         /* read options */
 284         if (read_options() == 0)
 285         {
 286                 PERROR("%s", options_error);
 287                 goto free;
 288         }
 289
 290         /* init mISDN */
 291         if (mISDN_initialize() < 0)
 292                 goto free;
 293         created_misdn = 1;
 294         created_debug = 1;
 295
 296         /* read ruleset(s) */
 297         if (!(ruleset_first = ruleset_parse()))
 298                 goto free;
 299
 300         /* set pointer to main ruleset */
 301         ruleset_main = getrulesetbyname("main");
 302         if (!ruleset_main)
 303         {
 304                 fprintf(stderr, "\n***\n -> Missing 'main' ruleset, causing ALL calls to be disconnected.\n***\n\n");
 305                 PDEBUG(DEBUG_LOG, "Missing 'main' ruleset, causing ALL calls to be disconnected.\n");
 306                 sleep(2);
 307         }
 308
 309 #if 0
 310         /* query available isdn ports */
 311         if (!(strcasecmp(argv[1],"route")))
 312         {
 313                 ruleset_debug(ruleset_first);
 314                 ret = 0;
 315                 goto free;
 316         }
 317 #endif
 318
 319         /* do fork in special cases */
 320         if (!(strcasecmp(argv[1],"fork")))
 321         {
 322                 pid_t pid;
 323
 324                 /* do daemon fork */
 325                 pid = fork();
 326
 327                 if (pid < 0)
 328                 {
 329                         fprintf(stderr, "Cannot fork!\n");
 330                         goto free;
 331                 }
 332                 if (pid != 0)
 333                 {
 334                         exit(0);
 335                 }
 336                 usleep(200000);
 337                 printf("\n");
 338
 339                 /* do second fork */
 340                 pid = fork();
 341
 342                 if (pid < 0)
 343                 {
 344                         fprintf(stderr, "Cannot fork!\n");
 345                         goto free;
 346                 }
 347                 if (pid != 0)
 348                 {
 349                         printf("LCR: Starting daemon.\n");
 350                         exit(0);
 351                 }
 352                 nooutput = 1;
 353         } else
 354         /* if not start */
 355         if (!!strcasecmp(argv[1],"start"))
 356         {
 357                 goto usage;
 358         }
 359
 360         /* create lock and lock! */
 361         if ((lockfd = open("/var/run/lcr.lock", O_CREAT, 0)) < 0)
 362         {
 363                 fprintf(stderr, "Cannot create lock file: /var/run/lcr.lock\n");
 364                 goto free;
 365         }
 366         if (flock(lockfd, LOCK_EX|LOCK_NB) < 0)
 367         {
 368                 if (errno == EWOULDBLOCK)
 369                         fprintf(stderr, "LCR: Another LCR process is running. Please kill the other one.\n");
 370                 else    fprintf(stderr, "Locking process failed: errno=%d\n", errno);
 371                 goto free;
 372         }
 373         created_lock = 1;
 374
 375         /* initialize admin socket */
 376         if (admin_init())
 377         {
 378                 fprintf(stderr, "Unable to initialize admin socket.\n");
 379                 goto free;
 380         }
 381
 382         /* generate alaw / ulaw tables */
 383         generate_tables(options.law);
 384
 385         /* load tones (if requested) */
 386         if (fetch_tones() == 0)
 387         {
 388                 fprintf(stderr, "Unable to fetch tones into memory.\n");
 389                 goto free;
 390         }
 391
 392         /* read interfaces and open ports */
 393         if (!read_interfaces())
 394         {
 395                 PERROR_RUNTIME("No interfaces specified or failed to parse interface.conf.\n");
 396                 fprintf(stderr, "No interfaces specified or failed to parse interface.conf.\n");
 397                 goto free;
 398         }
 399         relink_interfaces();
 400         interface_first = interface_newlist;
 401         interface_newlist = NULL;
 402
 403         /* locking memory paging */
 404         i = 0;
 405         while(i < 10)
 406         {
 407                 if (mlockall(MCL_CURRENT | MCL_FUTURE) >= 0)
 408                         break;
 409                 usleep(200000);
 410                 i++;
 411         }
 412         if (i == 10)
 413         {
 414                 switch(errno)
 415                 {
 416                         case ENOMEM:
 417                         fprintf(stderr, "Not enough memory to lock paging, exitting...\n");
 418                         break;
 419                         case EPERM:
 420                         fprintf(stderr, "No permission to lock paging, exitting...\n");
 421                         break;
 422                         case EFAULT:
 423                         fprintf(stderr, "'Bad address' while locking paging, exitting...\n");
 424                         break;
 425                         default:
 426                         fprintf(stderr, "Unknown error %d while locking paging, exitting...\n", errno);
 427                 }
 428                 goto free;
 429         }
 430
 431         /* set real time scheduler & priority */
 432         if (options.schedule > 1)
 433         {
 434                 memset(&schedp, 0, sizeof(schedp));
 435                 schedp.sched_priority = options.schedule;
 436                 ret = sched_setscheduler(0, SCHED_RR, &schedp);
 437                 if (ret < 0)
 438                 {
 439                         PERROR("Scheduling failed with given priority %d (errno = %d).\nCheck options.conf 'schedule', exitting...\n", options.schedule, errno);
 440                         goto free;
 441                 }
 442         }
 443
 444         /* signal handlers */
 445         signal(SIGINT,sighandler);
 446         signal(SIGHUP,sighandler);
 447         signal(SIGTERM,sighandler);
 448         signal(SIGPIPE,sighandler);
 449         created_signal = 1;
 450
 451         /*** main loop ***/
 452         SPRINT(tracetext, "%s %s started, waiting for calls...", NAME, VERSION_STRING);
 453         start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext);
 454         printf("%s\n", tracetext);
 455         end_trace();
 456         GET_NOW();
 457         quit = 0;
 458         while(!quit)
 459         {
 460
 461                 last_d = now_d;
 462                 GET_NOW();
 463                 if (now_d-last_d > 1.0)
 464                 {
 465                         PERROR("LCR was stalling %d.%d seconds\n", ((int)((now_d-last_d)*10.0))/10, (int)((now_d-last_d)*10.0));
 466                 }
 467                 /* all loops must be counted from the beginning since nodes might get freed during handler */
 468                 all_idle = 1;
 469
 470 //#warning debugging usleep crash
 471 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 472
 473                 /* handle mISDN messages from kernel */
 474                 debug_prefix = "ISDN";
 475                 if (mISDN_handler())
 476                         all_idle = 0;
 477 //#warning debugging usleep crash
 478 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 479
 480 BUDETECT
 481
 482                 /* loop through all port ports and call their handler */
 483                 port_again:
 484                 port = port_first;
 485                 while(port)
 486                 {
 487                         debug_prefix = port->p_name;
 488                         debug_count++;
 489                         ret = port->handler();
 490                         if (ret)
 491                                 all_idle = 0;
 492                         if (ret < 0) /* port has been destroyed */
 493                                 goto port_again;
 494                         port = port->next;
 495                 }
 496
 497                 /* loop through all epoint and call their handler */
 498                 epoint_again:
 499                 epoint = epoint_first;
 500                 while(epoint)
 501                 {
 502                         debug_prefix = prefix_string;
 503                         SPRINT(prefix_string, "ep%ld", epoint->ep_serial);
 504                         debug_count++;
 505                         ret = epoint->handler();
 506                         if (ret)
 507                                 all_idle = 0;
 508                         if (ret < 0) /* epoint has been destroyed */
 509                                 goto epoint_again;
 510                         epoint = epoint->next;
 511                 }
 512
 513                 /* loop through all joins and call their handler */
 514                 join_again:
 515                 join = join_first;
 516                 while(join)
 517                 {
 518                         debug_prefix = "join";
 519                         debug_count++;
 520                         ret = join->handler();
 521                         if (ret)
 522                                 all_idle = 0;
 523                         if (ret < 0) /* join has been destroyed */
 524                                 goto join_again;
 525                         join = join->next;
 526                 }
 527
 528                 debug_prefix = 0;
 529
 530                 /* process any message */
 531                 debug_count++;
 532                 debug_prefix = "message";
 533                 while ((message = message_get()))
 534                 {
 535                         all_idle = 0;
 536                         switch(message->flow)
 537                         {
 538                                 case PORT_TO_EPOINT:
 539                                 debug_prefix = "msg port->epoint";
 540                                 epoint = find_epoint_id(message->id_to);
 541                                 if (epoint)
 542                                 {
 543                                         if (epoint->ep_app)
 544                                         {
 545                                                 epoint->ep_app->ea_message_port(message->id_from, message->type, &message->param);
 546                                         } else
 547                                         {
 548                                                 PDEBUG(DEBUG_MSG, "Warning: message %s from port %d to endpoint %d. endpoint doesn't have an application.\n", messages_txt[message->type], message->id_from, message->id_to);
 549                                         }
 550                                 } else
 551                                 {
 552                                         PDEBUG(DEBUG_MSG, "Warning: message %s from port %d to endpoint %d. endpoint doesn't exist anymore.\n", messages_txt[message->type], message->id_from, message->id_to);
 553                                 }
 554                                 break;
 555
 556                                 case EPOINT_TO_JOIN:
 557                                 debug_prefix = "msg epoint->join";
 558                                 join = find_join_id(message->id_to);
 559                                 if (join)
 560                                 {
 561                                         join->message_epoint(message->id_from, message->type, &message->param);
 562                                 } else
 563                                 {
 564                                         PDEBUG(DEBUG_MSG, "Warning: message %s from endpoint %d to join %d. join doesn't exist anymore\n", messages_txt[message->type], message->id_from, message->id_to);
 565                                 }
 566                                 break;
 567
 568                                 case JOIN_TO_EPOINT:
 569                                 debug_prefix = "msg join->epoint";
 570                                 epoint = find_epoint_id(message->id_to);
 571                                 if (epoint)
 572                                 {
 573                                         if (epoint->ep_app)
 574                                         {
 575                                                 epoint->ep_app->ea_message_join(message->id_from, message->type, &message->param);
 576                                         } else
 577                                         {
 578                                                 PDEBUG(DEBUG_MSG, "Warning: message %s from join %d to endpoint %d. endpoint doesn't have an application.\n", messages_txt[message->type], message->id_from, message->id_to);
 579                                         }
 580                                 } else
 581                                 {
 582                                         PDEBUG(DEBUG_MSG, "Warning: message %s from join %d to endpoint %d. endpoint doesn't exist anymore.\n", messages_txt[message->type], message->id_from, message->id_to);
 583                                 }
 584                                 break;
 585
 586                                 case EPOINT_TO_PORT:
 587                                 debug_prefix = "msg epoint->port";
 588                                 port = find_port_id(message->id_to);
 589                                 if (port)
 590                                 {
 591                                         port->message_epoint(message->id_from, message->type, &message->param);
 592 BUDETECT
 593                                 } else
 594                                 {
 595                                         PDEBUG(DEBUG_MSG, "Warning: message %s from endpoint %d to port %d. port doesn't exist anymore\n", messages_txt[message->type], message->id_from, message->id_to);
 596                                 }
 597                                 break;
 598
 599                                 default:
 600                                 PERROR("Message flow %d unknown.\n", message->flow);
 601                         }
 602                         message_free(message);
 603                         debug_count++;
 604                         debug_prefix = "message";
 605                 }
 606 BUDETECT
 607
 608                 /* handle socket */
 609                 if (admin_handle())
 610                         all_idle = 0;
 611 BUDETECT
 612
 613 #if 0
 614                 /* check for child to exit (eliminate zombies) */
 615                 if (waitpid(-1, NULL, WNOHANG) > 0)
 616                 {
 617                         PDEBUG(DEBUG_EPOINT, "a child process (created by endpoint) has exitted.\n");
 618                         all_idle = 0;
 619                 }
 620 #endif
 621 //#warning debugging usleep crash
 622 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 623
 624                 /* do idle checking */
 625                 if (idlecheck != now)
 626                 {
 627                         PDEBUG(DEBUG_IDLETIME, "Idle time : %d%%\n", idletime/10000);
 628                         idletime = 0;
 629                         idlecheck = now;
 630                 }
 631
 632                 /* did we do nothing? so we wait to give time to other processes */
 633                 if (all_idle)
 634                 {
 635 //                      pthread_mutex_unlock(&mutex_lcr); // unlock LCR
 636                         debug_usleep(4000, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 637 //                      pthread_mutex_lock(&mutex_lcr); // lock LCR
 638                         idletime += 4000;
 639                 }
 640         }
 641         SPRINT(tracetext, "%s terminated", NAME);
 642         printf("%s\n", tracetext);
 643         start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext);
 644         if (quit)
 645                 add_trace("signal", NULL, "%d", quit);
 646         end_trace();
 647         ret=0;
 648
 649         /* free all */
 650 free:
 651
 652
 653         /* set scheduler & priority
 654          */
 655         if (options.schedule > 1)
 656         {
 657                 memset(&schedp, 0, sizeof(schedp));
 658                 schedp.sched_priority = options.schedule;
 659                 sched_setscheduler(0, SCHED_OTHER, &schedp);
 660         }
 661         /* reset signals */
 662         if (created_signal)
 663         {
 664                 signal(SIGINT,SIG_DFL);
 665                 signal(SIGHUP,SIG_DFL);
 666                 signal(SIGTERM,SIG_DFL);
 667                 signal(SIGPIPE,SIG_DFL);
 668         }
 669
 670         /* destroy objects */
 671         debug_prefix = "free";
 672
 673         while(port_first)
 674         {
 675                 debug_count++;
 676                 delete port_first;
 677         }
 678         while(epoint_first)
 679         {
 680                 debug_count++;
 681                 delete epoint_first;
 682         }
 683         epoint_first = NULL;
 684         debug_count++;
 685         join_free();
 686
 687         /* free interfaces */
 688         if (interface_first)
 689                 free_interfaces(interface_first);
 690         interface_first = NULL;
 691
 692         /* close isdn ports */
 693         mISDNport_close_all();
 694
 695         /* flush messages */
 696         debug_count++;
 697         i = 0;
 698         while ((message = message_get()))
 699         {
 700                 i++;
 701                 message_free(message);
 702         }
 703         if (i)
 704         {
 705                 PDEBUG(DEBUG_MSG, "freed %d pending messages\n", i);
 706         }
 707
 708         /* free tones */
 709         if (toneset_first)
 710                 free_tones();
 711
 712         /* free admin socket */
 713         admin_cleanup();
 714
 715         /* close lock */
 716         if (created_lock)
 717                 flock(lockfd, LOCK_UN);
 718         if (lockfd >= 0)
 719                 close(lockfd);
 720
 721         /* free rulesets */
 722         if (ruleset_first)
 723                 ruleset_free(ruleset_first);
 724         ruleset_first = NULL;
 725
 726         /* free mutex */
 727         if (created_mutexe)
 728                 if (pthread_mutex_destroy(&mutexe))
 729                         fprintf(stderr, "cannot destroy 'PERROR' mutex\n");
 730 //      if (created_mutext)
 731 //              if (pthread_mutex_destroy(&mutext))
 732 //                      fprintf(stderr, "cannot destroy 'trace' mutex\n");
 733         if (created_mutexd)
 734                 if (pthread_mutex_destroy(&mutexd))
 735                         fprintf(stderr, "cannot destroy 'PDEBUG' mutex\n");
 736
 737         /* deinitialize mISDN */
 738         if (created_misdn)
 739                 mISDN_deinitialize();
 740
 741         /* display memory leak */
 742 #define MEMCHECK(a, b) \
 743         if (b) \
 744         { \
 745                 SPRINT(tracetext, a, NAME); \
 746                 start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext); \
 747                 if (ret) add_trace("blocks", NULL, "%d", b); \
 748                 end_trace(); \
 749                 printf("\n******************************\n\007"); \
 750                 printf("\nERROR: %d %s\n", b, a); \
 751                 printf("\n******************************\n"); \
 752                 ret = -1; \
 753         }
 754         MEMCHECK("",memuse)
 755         MEMCHECK("memory block(s) left (port.cpp ...)",pmemuse)
 756         MEMCHECK("memory block(s) left (epoint*.cpp ...)",ememuse)
 757         MEMCHECK("memory block(s) left (join*.cpp)",cmemuse)
 758         MEMCHECK("memory block(s) left (message.c)",mmemuse)
 759         MEMCHECK("memory block(s) left (route.c)",rmemuse)
 760         MEMCHECK("memory block(s) left (args)",amemuse)
 761         MEMCHECK("class(es) left",classuse)
 762         MEMCHECK("file descriptor(s) left",fduse)
 763         MEMCHECK("file handler(s) left",fhuse)
 764
 765         /* unlock LCR process */
 766 //      pthread_mutex_unlock(&mutex_lcr);
 767
 768         /* take me out */
 769         return(ret);
 770 }
 771
 772
 773 #ifdef BUDETECT_DEF
 774 /* special debug function to detect buffer overflow
 775  */
 776 int budetect_stop = 0;
 777 void budetect(const char *file, int line, char *function)
 778 {
 779         if (budetect_stop)
 780                 return;
 781         /* modify this function to detect race-bugs */
 782 #warning DID YOU MODIFY THIS FUNCTION TO DETECT THE BUFFER OVERFLOW BUG?
 783         class Port *port;
 784         class PmISDN *pmisdn;
 785         struct mISDNport *mISDNport = mISDNport_first;
 786         int i, ii;
 787
 788         while(mISDNport)
 789         {
 790                 i = 0;
 791                 ii = mISDNport->b_num;
 792                 while(i < ii)
 793                 {
 794                         if (mISDNport->b_port[i])
 795                         {
 796                                 port = port_first;
 797                                 while(port)
 798                                 {
 799                                         if ((port->p_type&PORT_CLASS_MASK) == PORT_CLASS_ISDN)
 800                                         {
 801                                                 pmisdn = (class PmISDN *)port;
 802                                                 if (pmisdn->p_isdn_crypt_listen)
 803                                                 {
 804                                                         PERROR_RUNTIME("************************************************\n");
 805                                                         PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 806                                                         PERROR_RUNTIME("** p_isdn_crypt_listen = %d\n", pmisdn->p_isdn_crypt_listen);
 807                                                         PERROR_RUNTIME("************************************************\n");
 808                                                         budetect_stop = 1;
 809                                                 }
 810                                         }
 811                                         if (port == mISDNport->b_port[i])
 812                                                 break;
 813                                         port = port->next;
 814                                         if (!port)
 815                                         {
 816                                                 PERROR_RUNTIME("************************************************\n");
 817                                                 PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 818                                                 PERROR_RUNTIME("** b_port not in list.\n");
 819                                                 PERROR_RUNTIME("************************************************\n");
 820                                                 budetect_stop = 1;
 821                                         }
 822                                 }
 823                         }
 824                         i++;
 825                 }
 826                 mISDNport = mISDNport->next;
 827         }
 828
 829 }
 830 #endif
 831