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 long 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                 goto free;
 286
 287         /* init mISDN */
 288         if (mISDN_initialize() < 0)
 289                 goto free;
 290         created_misdn = 1;
 291         created_debug = 1;
 292
 293         /* read ruleset(s) */
 294         if (!(ruleset_first = ruleset_parse()))
 295                 goto free;
 296
 297         /* set pointer to main ruleset */
 298         ruleset_main = getrulesetbyname("main");
 299         if (!ruleset_main)
 300         {
 301                 fprintf(stderr, "\n***\n -> Missing 'main' ruleset, causing ALL calls to be disconnected.\n***\n\n");
 302                 PDEBUG(DEBUG_LOG, "Missing 'main' ruleset, causing ALL calls to be disconnected.\n");
 303                 sleep(2);
 304         }
 305
 306 #if 0
 307         /* query available isdn ports */
 308         if (!(strcasecmp(argv[1],"route")))
 309         {
 310                 ruleset_debug(ruleset_first);
 311                 ret = 0;
 312                 goto free;
 313         }
 314 #endif
 315
 316         /* do fork in special cases */
 317         if (!(strcasecmp(argv[1],"fork")))
 318         {
 319                 pid_t pid;
 320
 321                 /* do daemon fork */
 322                 pid = fork();
 323
 324                 if (pid < 0)
 325                 {
 326                         fprintf(stderr, "Cannot fork!\n");
 327                         goto free;
 328                 }
 329                 if (pid != 0)
 330                 {
 331                         exit(0);
 332                 }
 333                 usleep(200000);
 334                 printf("\n");
 335
 336                 /* do second fork */
 337                 pid = fork();
 338
 339                 if (pid < 0)
 340                 {
 341                         fprintf(stderr, "Cannot fork!\n");
 342                         goto free;
 343                 }
 344                 if (pid != 0)
 345                 {
 346                         printf("LCR: Starting daemon.\n");
 347                         exit(0);
 348                 }
 349                 nooutput = 1;
 350         } else
 351         /* if not start */
 352         if (!!strcasecmp(argv[1],"start"))
 353         {
 354                 goto usage;
 355         }
 356
 357         /* create lock and lock! */
 358         if ((lockfd = open("/var/run/lcr.lock", O_CREAT, 0)) < 0)
 359         {
 360                 fprintf(stderr, "Cannot create lock file: /var/run/lcr.lock\n");
 361                 goto free;
 362         }
 363         if (flock(lockfd, LOCK_EX|LOCK_NB) < 0)
 364         {
 365                 if (errno == EWOULDBLOCK)
 366                         fprintf(stderr, "LCR: Another LCR process is running. Please kill the other one.\n");
 367                 else    fprintf(stderr, "Locking process failed: errno=%d\n", errno);
 368                 goto free;
 369         }
 370         created_lock = 1;
 371
 372         /* initialize admin socket */
 373         if (admin_init())
 374         {
 375                 fprintf(stderr, "Unable to initialize admin socket.\n");
 376                 goto free;
 377         }
 378
 379         /* generate alaw / ulaw tables */
 380         generate_tables(options.law);
 381
 382         /* load tones (if requested) */
 383         if (fetch_tones() == 0)
 384         {
 385                 fprintf(stderr, "Unable to fetch tones into memory.\n");
 386                 goto free;
 387         }
 388
 389         /* read interfaces and open ports */
 390         if (!read_interfaces())
 391         {
 392                 PERROR_RUNTIME("No interfaces specified or failed to parse interface.conf.\n");
 393                 fprintf(stderr, "No interfaces specified or failed to parse interface.conf.\n");
 394                 goto free;
 395         }
 396         relink_interfaces();
 397         interface_first = interface_newlist;
 398         interface_newlist = NULL;
 399
 400         /* locking memory paging */
 401         i = 0;
 402         while(i < 10)
 403         {
 404                 if (mlockall(MCL_CURRENT | MCL_FUTURE) >= 0)
 405                         break;
 406                 usleep(200000);
 407                 i++;
 408         }
 409         if (i == 10)
 410         {
 411                 switch(errno)
 412                 {
 413                         case ENOMEM:
 414                         fprintf(stderr, "Not enough memory to lock paging, exitting...\n");
 415                         break;
 416                         case EPERM:
 417                         fprintf(stderr, "No permission to lock paging, exitting...\n");
 418                         break;
 419                         case EFAULT:
 420                         fprintf(stderr, "'Bad address' while locking paging, exitting...\n");
 421                         break;
 422                         default:
 423                         fprintf(stderr, "Unknown error %d while locking paging, exitting...\n", errno);
 424                 }
 425                 goto free;
 426         }
 427
 428         /* set real time scheduler & priority */
 429         if (options.schedule > 1)
 430         {
 431                 memset(&schedp, 0, sizeof(schedp));
 432                 schedp.sched_priority = options.schedule;
 433                 ret = sched_setscheduler(0, SCHED_RR, &schedp);
 434                 if (ret < 0)
 435                 {
 436                         PERROR("Scheduling failed with given priority %d (errno = %d).\nCheck options.conf 'schedule', exitting...\n", options.schedule, errno);
 437                         goto free;
 438                 }
 439         }
 440
 441         /* signal handlers */
 442         signal(SIGINT,sighandler);
 443         signal(SIGHUP,sighandler);
 444         signal(SIGTERM,sighandler);
 445         signal(SIGPIPE,sighandler);
 446         created_signal = 1;
 447
 448         /*** main loop ***/
 449         SPRINT(tracetext, "%s %s started, waiting for calls...", NAME, VERSION_STRING);
 450         start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext);
 451         printf("%s\n", tracetext);
 452         end_trace();
 453         GET_NOW();
 454         quit = 0;
 455         while(!quit)
 456         {
 457
 458                 last_d = now_d;
 459                 GET_NOW();
 460                 if (now_d-last_d > 1.0)
 461                 {
 462                         PERROR("LCR was stalling %d.%d seconds\n", ((int)((now_d-last_d)*10.0))/10, (int)((now_d-last_d)*10.0));
 463                 }
 464                 /* all loops must be counted from the beginning since nodes might get freed during handler */
 465                 all_idle = 1;
 466
 467 //#warning debugging usleep crash
 468 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 469
 470                 /* handle mISDN messages from kernel */
 471                 debug_prefix = "ISDN";
 472                 if (mISDN_handler())
 473                         all_idle = 0;
 474 //#warning debugging usleep crash
 475 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 476
 477 BUDETECT
 478
 479                 /* loop through all port ports and call their handler */
 480                 port_again:
 481                 port = port_first;
 482                 while(port)
 483                 {
 484                         debug_prefix = port->p_name;
 485                         debug_count++;
 486                         ret = port->handler();
 487                         if (ret)
 488                                 all_idle = 0;
 489                         if (ret < 0) /* port has been destroyed */
 490                                 goto port_again;
 491                         port = port->next;
 492                 }
 493
 494                 /* loop through all epoint and call their handler */
 495                 epoint_again:
 496                 epoint = epoint_first;
 497                 while(epoint)
 498                 {
 499                         debug_prefix = prefix_string;
 500                         SPRINT(prefix_string, "ep%ld", epoint->ep_serial);
 501                         debug_count++;
 502                         ret = epoint->handler();
 503                         if (ret)
 504                                 all_idle = 0;
 505                         if (ret < 0) /* epoint has been destroyed */
 506                                 goto epoint_again;
 507                         epoint = epoint->next;
 508                 }
 509
 510                 /* loop through all joins and call their handler */
 511                 join_again:
 512                 join = join_first;
 513                 while(join)
 514                 {
 515                         debug_prefix = "join";
 516                         debug_count++;
 517                         ret = join->handler();
 518                         if (ret)
 519                                 all_idle = 0;
 520                         if (ret < 0) /* join has been destroyed */
 521                                 goto join_again;
 522                         join = join->next;
 523                 }
 524
 525                 debug_prefix = 0;
 526
 527                 /* process any message */
 528                 debug_count++;
 529                 debug_prefix = "message";
 530                 while ((message = message_get()))
 531                 {
 532                         all_idle = 0;
 533                         switch(message->flow)
 534                         {
 535                                 case PORT_TO_EPOINT:
 536                                 debug_prefix = "msg port->epoint";
 537                                 epoint = find_epoint_id(message->id_to);
 538                                 if (epoint)
 539                                 {
 540                                         if (epoint->ep_app)
 541                                         {
 542                                                 epoint->ep_app->ea_message_port(message->id_from, message->type, &message->param);
 543                                         } else
 544                                         {
 545                                                 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);
 546                                         }
 547                                 } else
 548                                 {
 549                                         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);
 550                                 }
 551                                 break;
 552
 553                                 case EPOINT_TO_JOIN:
 554                                 debug_prefix = "msg epoint->join";
 555                                 join = find_join_id(message->id_to);
 556                                 if (join)
 557                                 {
 558                                         join->message_epoint(message->id_from, message->type, &message->param);
 559                                 } else
 560                                 {
 561                                         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);
 562                                 }
 563                                 break;
 564
 565                                 case JOIN_TO_EPOINT:
 566                                 debug_prefix = "msg join->epoint";
 567                                 epoint = find_epoint_id(message->id_to);
 568                                 if (epoint)
 569                                 {
 570                                         if (epoint->ep_app)
 571                                         {
 572                                                 epoint->ep_app->ea_message_join(message->id_from, message->type, &message->param);
 573                                         } else
 574                                         {
 575                                                 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);
 576                                         }
 577                                 } else
 578                                 {
 579                                         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);
 580                                 }
 581                                 break;
 582
 583                                 case EPOINT_TO_PORT:
 584                                 debug_prefix = "msg epoint->port";
 585                                 port = find_port_id(message->id_to);
 586                                 if (port)
 587                                 {
 588                                         port->message_epoint(message->id_from, message->type, &message->param);
 589 BUDETECT
 590                                 } else
 591                                 {
 592                                         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);
 593                                 }
 594                                 break;
 595
 596                                 default:
 597                                 PERROR("Message flow %d unknown.\n", message->flow);
 598                         }
 599                         message_free(message);
 600                         debug_count++;
 601                         debug_prefix = "message";
 602                 }
 603 BUDETECT
 604
 605                 /* handle socket */
 606                 if (admin_handle())
 607                         all_idle = 0;
 608 BUDETECT
 609
 610 #if 0
 611                 /* check for child to exit (eliminate zombies) */
 612                 if (waitpid(-1, NULL, WNOHANG) > 0)
 613                 {
 614                         PDEBUG(DEBUG_EPOINT, "a child process (created by endpoint) has exitted.\n");
 615                         all_idle = 0;
 616                 }
 617 #endif
 618 //#warning debugging usleep crash
 619 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 620
 621                 /* do idle checking */
 622                 if (idlecheck != now)
 623                 {
 624                         PDEBUG(DEBUG_IDLETIME, "Idle time : %d%%\n", idletime/10000);
 625                         idletime = 0;
 626                         idlecheck = now;
 627                 }
 628
 629                 /* did we do nothing? so we wait to give time to other processes */
 630                 if (all_idle)
 631                 {
 632 //                      pthread_mutex_unlock(&mutex_lcr); // unlock LCR
 633                         debug_usleep(4000, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 634 //                      pthread_mutex_lock(&mutex_lcr); // lock LCR
 635                         idletime += 4000;
 636                 }
 637         }
 638         SPRINT(tracetext, "%s terminated", NAME);
 639         printf("%s\n", tracetext);
 640         start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext);
 641         if (quit)
 642                 add_trace("signal", NULL, "%d", quit);
 643         end_trace();
 644         ret=0;
 645
 646         /* free all */
 647 free:
 648
 649
 650         /* set scheduler & priority
 651          */
 652         if (options.schedule > 1)
 653         {
 654                 memset(&schedp, 0, sizeof(schedp));
 655                 schedp.sched_priority = options.schedule;
 656                 sched_setscheduler(0, SCHED_OTHER, &schedp);
 657         }
 658         /* reset signals */
 659         if (created_signal)
 660         {
 661                 signal(SIGINT,SIG_DFL);
 662                 signal(SIGHUP,SIG_DFL);
 663                 signal(SIGTERM,SIG_DFL);
 664                 signal(SIGPIPE,SIG_DFL);
 665         }
 666
 667         /* destroy objects */
 668         debug_prefix = "free";
 669
 670         while(port_first)
 671         {
 672                 debug_count++;
 673                 delete port_first;
 674         }
 675         while(epoint_first)
 676         {
 677                 debug_count++;
 678                 delete epoint_first;
 679         }
 680         epoint_first = NULL;
 681         debug_count++;
 682         join_free();
 683
 684         /* free interfaces */
 685         if (interface_first)
 686                 free_interfaces(interface_first);
 687         interface_first = NULL;
 688
 689         /* close isdn ports */
 690         mISDNport_close_all();
 691
 692         /* flush messages */
 693         debug_count++;
 694         i = 0;
 695         while ((message = message_get()))
 696         {
 697                 i++;
 698                 message_free(message);
 699         }
 700         if (i)
 701         {
 702                 PDEBUG(DEBUG_MSG, "freed %d pending messages\n", i);
 703         }
 704
 705         /* free tones */
 706         if (toneset_first)
 707                 free_tones();
 708
 709         /* free admin socket */
 710         admin_cleanup();
 711
 712         /* close lock */
 713         if (created_lock)
 714                 flock(lockfd, LOCK_UN);
 715         if (lockfd >= 0)
 716                 close(lockfd);
 717
 718         /* free rulesets */
 719         if (ruleset_first)
 720                 ruleset_free(ruleset_first);
 721         ruleset_first = NULL;
 722
 723         /* free mutex */
 724         if (created_mutexe)
 725                 if (pthread_mutex_destroy(&mutexe))
 726                         fprintf(stderr, "cannot destroy 'PERROR' mutex\n");
 727 //      if (created_mutext)
 728 //              if (pthread_mutex_destroy(&mutext))
 729 //                      fprintf(stderr, "cannot destroy 'trace' mutex\n");
 730         if (created_mutexd)
 731                 if (pthread_mutex_destroy(&mutexd))
 732                         fprintf(stderr, "cannot destroy 'PDEBUG' mutex\n");
 733
 734         /* deinitialize mISDN */
 735         if (created_misdn)
 736                 mISDN_deinitialize();
 737
 738         /* display memory leak */
 739 #define MEMCHECK(a, b) \
 740         if (b) \
 741         { \
 742                 SPRINT(tracetext, a, NAME); \
 743                 start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext); \
 744                 if (ret) add_trace("blocks", NULL, "%d", b); \
 745                 end_trace(); \
 746                 printf("\n******************************\n\007"); \
 747                 printf("\nERROR: %d %s\n", b, a); \
 748                 printf("\n******************************\n"); \
 749                 ret = -1; \
 750         }
 751         MEMCHECK("",memuse)
 752         MEMCHECK("memory block(s) left (port.cpp ...)",pmemuse)
 753         MEMCHECK("memory block(s) left (epoint*.cpp ...)",ememuse)
 754         MEMCHECK("memory block(s) left (join*.cpp)",cmemuse)
 755         MEMCHECK("memory block(s) left (message.c)",mmemuse)
 756         MEMCHECK("memory block(s) left (route.c)",rmemuse)
 757         MEMCHECK("memory block(s) left (args)",amemuse)
 758         MEMCHECK("class(es) left",classuse)
 759         MEMCHECK("file descriptor(s) left",fduse)
 760         MEMCHECK("file handler(s) left",fhuse)
 761
 762         /* unlock LCR process */
 763 //      pthread_mutex_unlock(&mutex_lcr);
 764
 765         /* take me out */
 766         return(ret);
 767 }
 768
 769
 770 #ifdef BUDETECT_DEF
 771 /* special debug function to detect buffer overflow
 772  */
 773 int budetect_stop = 0;
 774 void budetect(const char *file, int line, char *function)
 775 {
 776         if (budetect_stop)
 777                 return;
 778         /* modify this function to detect race-bugs */
 779 #warning DID YOU MODIFY THIS FUNCTION TO DETECT THE BUFFER OVERFLOW BUG?
 780         class Port *port;
 781         class PmISDN *pmisdn;
 782         struct mISDNport *mISDNport = mISDNport_first;
 783         int i, ii;
 784
 785         while(mISDNport)
 786         {
 787                 i = 0;
 788                 ii = mISDNport->b_num;
 789                 while(i < ii)
 790                 {
 791                         if (mISDNport->b_port[i])
 792                         {
 793                                 port = port_first;
 794                                 while(port)
 795                                 {
 796                                         if ((port->p_type&PORT_CLASS_MASK) == PORT_CLASS_ISDN)
 797                                         {
 798                                                 pmisdn = (class PmISDN *)port;
 799                                                 if (pmisdn->p_isdn_crypt_listen)
 800                                                 {
 801                                                         PERROR_RUNTIME("************************************************\n");
 802                                                         PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 803                                                         PERROR_RUNTIME("** p_isdn_crypt_listen = %d\n", pmisdn->p_isdn_crypt_listen);
 804                                                         PERROR_RUNTIME("************************************************\n");
 805                                                         budetect_stop = 1;
 806                                                 }
 807                                         }
 808                                         if (port == mISDNport->b_port[i])
 809                                                 break;
 810                                         port = port->next;
 811                                         if (!port)
 812                                         {
 813                                                 PERROR_RUNTIME("************************************************\n");
 814                                                 PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 815                                                 PERROR_RUNTIME("** b_port not in list.\n");
 816                                                 PERROR_RUNTIME("************************************************\n");
 817                                                 budetect_stop = 1;
 818                                         }
 819                                 }
 820                         }
 821                         i++;
 822                 }
 823                 mISDNport = mISDNport->next;
 824         }
 825
 826 }
 827 #endif
 828