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 const char *debug_prefix = NULL;
  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, const char *file, int line, int hour, int min, int sec)
  59 {
  60         usleep(msec);
  61 }
  62
  63 void debug(const char *function, int line, const 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         const 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], lock[128];
 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         /* the mutex init */
 230         if (pthread_mutex_init(&mutexd, NULL))
 231         {
 232                 fprintf(stderr, "cannot create 'PDEBUG' mutex\n");
 233                 goto free;
 234         }
 235         created_mutexd = 1;
 236 //      if (pthread_mutex_init(&mutext, NULL))
 237 //      {
 238 //              fprintf(stderr, "cannot create 'trace' mutex\n");
 239 //              goto free;
 240 //      }
 241 //      created_mutext = 1;
 242         if (pthread_mutex_init(&mutexe, NULL))
 243         {
 244                 fprintf(stderr, "cannot create 'PERROR' mutex\n");
 245                 goto free;
 246         }
 247         created_mutexe = 1;
 248
 249         /* show interface */
 250         if (!(strcasecmp(argv[1],"interface")))
 251         {
 252                 doc_interface();
 253                 ret = 0;
 254                 goto free;
 255         }
 256
 257         /* show rules */
 258         if (!(strcasecmp(argv[1],"rules")))
 259         {
 260                 if (argc <= 2)
 261                         doc_rules(NULL);
 262                 else
 263                         doc_rules(argv[2]);
 264                 ret = 0;
 265                 goto free;
 266         }
 267
 268         /* query available isdn ports */
 269         if (!(strcasecmp(argv[1],"query")))
 270         {
 271                 fprintf(stderr, "-> Using 'misdn_info'\n");
 272                 system("misdn_info");
 273                 ret = 0;
 274                 goto free;
 275         }
 276
 277         /* read options */
 278         if (read_options() == 0)
 279         {
 280                 PERROR("%s", options_error);
 281                 goto free;
 282         }
 283
 284         /* init mISDN */
 285         if (mISDN_initialize() < 0)
 286                 goto free;
 287         created_misdn = 1;
 288         created_debug = 1;
 289
 290         /* read ruleset(s) */
 291         if (!(ruleset_first = ruleset_parse()))
 292                 goto free;
 293
 294         /* set pointer to main ruleset */
 295         ruleset_main = getrulesetbyname("main");
 296         if (!ruleset_main)
 297         {
 298                 fprintf(stderr, "\n***\n -> Missing 'main' ruleset, causing ALL calls to be disconnected.\n***\n\n");
 299                 PDEBUG(DEBUG_LOG, "Missing 'main' ruleset, causing ALL calls to be disconnected.\n");
 300                 sleep(2);
 301         }
 302
 303 #if 0
 304         /* query available isdn ports */
 305         if (!(strcasecmp(argv[1],"route")))
 306         {
 307                 ruleset_debug(ruleset_first);
 308                 ret = 0;
 309                 goto free;
 310         }
 311 #endif
 312
 313         /* do fork in special cases */
 314         if (!(strcasecmp(argv[1],"fork")))
 315         {
 316                 pid_t pid;
 317                 FILE *pidfile;
 318
 319                 /* do daemon fork */
 320                 pid = fork();
 321
 322                 if (pid < 0)
 323                 {
 324                         fprintf(stderr, "Cannot fork!\n");
 325                         goto free;
 326                 }
 327                 if (pid != 0)
 328                 {
 329                         exit(0);
 330                 }
 331                 usleep(200000);
 332                 printf("\n");
 333
 334                 /* do second fork */
 335                 pid = fork();
 336
 337                 if (pid < 0)
 338                 {
 339                         fprintf(stderr, "Cannot fork!\n");
 340                         goto free;
 341                 }
 342                 if (pid != 0)
 343                 {
 344                         printf("LCR: Starting daemon.\n");
 345                         exit(0);
 346                 }
 347                 nooutput = 1;
 348
 349                 /* write pid file */
 350                 pidfile = fopen("/var/run/lcr.pid","w");
 351                 if (pidfile)
 352                 {
 353                         fprintf(pidfile, "%d\n", getpid());
 354                         fclose(pidfile);
 355                 }
 356         } else
 357         /* if not start */
 358         if (!!strcasecmp(argv[1],"start"))
 359         {
 360                 goto usage;
 361         }
 362
 363         /* create lock and lock! */
 364         SPRINT(lock, "%s/lcr.lock", options.lock);
 365         if ((lockfd = open(lock, O_CREAT | O_WRONLY, S_IWUSR)) < 0)
 366         {
 367                 fprintf(stderr, "Cannot create lock file: %s\n", lock);
 368                 fprintf(stderr, "Check options.conf to change to path with permissions for you.\n");
 369                 goto free;
 370         }
 371         if (flock(lockfd, LOCK_EX|LOCK_NB) < 0)
 372         {
 373                 if (errno == EWOULDBLOCK)
 374                         fprintf(stderr, "LCR: Another LCR process is running. Please kill the other one.\n");
 375                 else    fprintf(stderr, "Locking process failed: errno=%d\n", errno);
 376                 goto free;
 377         }
 378         created_lock = 1;
 379
 380         /* initialize admin socket */
 381         if (admin_init())
 382         {
 383                 fprintf(stderr, "Unable to initialize admin socket.\n");
 384                 goto free;
 385         }
 386
 387         /* generate alaw / ulaw tables */
 388         generate_tables(options.law);
 389
 390         /* load tones (if requested) */
 391         if (fetch_tones() == 0)
 392         {
 393                 fprintf(stderr, "Unable to fetch tones into memory.\n");
 394                 goto free;
 395         }
 396
 397         /* read interfaces and open ports */
 398         if (!read_interfaces())
 399         {
 400                 PERROR_RUNTIME("No interfaces specified or failed to parse interface.conf.\n");
 401                 fprintf(stderr, "No interfaces specified or failed to parse interface.conf.\n");
 402                 goto free;
 403         }
 404         relink_interfaces();
 405         interface_first = interface_newlist;
 406         interface_newlist = NULL;
 407
 408         /* locking memory paging */
 409         i = 0;
 410         while(i < 10)
 411         {
 412                 if (mlockall(MCL_CURRENT | MCL_FUTURE) >= 0)
 413                         break;
 414                 usleep(200000);
 415                 i++;
 416         }
 417         if (i == 10)
 418         {
 419                 switch(errno)
 420                 {
 421                         case ENOMEM:
 422                         fprintf(stderr, "Warning: Not enough memory to lock paging.\n");
 423                         break;
 424                         case EPERM:
 425                         fprintf(stderr, "Warning: No permission to lock paging.\n");
 426                         break;
 427                         case EFAULT:
 428                         fprintf(stderr, "Warning: 'Bad address' while locking paging.\n");
 429                         break;
 430                         default:
 431                         fprintf(stderr, "Warning: Unknown error %d while locking paging.\n", errno);
 432                 }
 433         }
 434
 435         /* set real time scheduler & priority */
 436         if (options.schedule > 1)
 437         {
 438                 memset(&schedp, 0, sizeof(schedp));
 439                 schedp.sched_priority = options.schedule;
 440                 ret = sched_setscheduler(0, SCHED_RR, &schedp);
 441                 if (ret < 0)
 442                 {
 443                         PERROR("Scheduling failed with given priority %d (errno = %d).\nCheck options.conf 'schedule', exitting...\n", options.schedule, errno);
 444                         goto free;
 445                 }
 446         }
 447
 448         /* signal handlers */
 449         signal(SIGINT,sighandler);
 450         signal(SIGHUP,sighandler);
 451         signal(SIGTERM,sighandler);
 452         signal(SIGPIPE,sighandler);
 453         created_signal = 1;
 454
 455         /*** main loop ***/
 456         SPRINT(tracetext, "%s %s started, waiting for calls...", NAME, VERSION_STRING);
 457         start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext);
 458         printf("%s\n", tracetext);
 459         end_trace();
 460         GET_NOW();
 461         quit = 0;
 462         while(!quit)
 463         {
 464
 465                 last_d = now_d;
 466                 GET_NOW();
 467                 if (now_d-last_d > 1.0)
 468                 {
 469                         PERROR("LCR was stalling %d.%d seconds\n", ((int)((now_d-last_d)*10.0))/10, (int)((now_d-last_d)*10.0));
 470                 }
 471                 /* all loops must be counted from the beginning since nodes might get freed during handler */
 472                 all_idle = 1;
 473
 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                 /* handle mISDN messages from kernel */
 478                 debug_prefix = "ISDN";
 479                 if (mISDN_handler())
 480                         all_idle = 0;
 481 //#warning debugging usleep crash
 482 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 483
 484 BUDETECT
 485
 486                 /* loop through all port ports and call their handler */
 487                 port_again:
 488                 port = port_first;
 489                 while(port)
 490                 {
 491                         debug_prefix = port->p_name;
 492                         debug_count++;
 493                         ret = port->handler();
 494                         if (ret)
 495                                 all_idle = 0;
 496                         if (ret < 0) /* port has been destroyed */
 497                                 goto port_again;
 498                         port = port->next;
 499                 }
 500
 501                 /* loop through all epoint and call their handler */
 502                 epoint_again:
 503                 epoint = epoint_first;
 504                 while(epoint)
 505                 {
 506                         debug_prefix = prefix_string;
 507                         SPRINT(prefix_string, "ep%ld", epoint->ep_serial);
 508                         debug_count++;
 509                         ret = epoint->handler();
 510                         if (ret)
 511                                 all_idle = 0;
 512                         if (ret < 0) /* epoint has been destroyed */
 513                                 goto epoint_again;
 514                         epoint = epoint->next;
 515                 }
 516
 517                 /* loop through all joins and call their handler */
 518                 join_again:
 519                 join = join_first;
 520                 while(join)
 521                 {
 522                         debug_prefix = "join";
 523                         debug_count++;
 524                         ret = join->handler();
 525                         if (ret)
 526                                 all_idle = 0;
 527                         if (ret < 0) /* join has been destroyed */
 528                                 goto join_again;
 529                         join = join->next;
 530                 }
 531
 532                 debug_prefix = 0;
 533
 534                 /* process any message */
 535                 debug_count++;
 536                 debug_prefix = "message";
 537                 while ((message = message_get()))
 538                 {
 539                         all_idle = 0;
 540                         switch(message->flow)
 541                         {
 542                                 case PORT_TO_EPOINT:
 543                                 debug_prefix = "msg port->epoint";
 544                                 epoint = find_epoint_id(message->id_to);
 545                                 if (epoint)
 546                                 {
 547                                         if (epoint->ep_app)
 548                                         {
 549                                                 epoint->ep_app->ea_message_port(message->id_from, message->type, &message->param);
 550                                         } else
 551                                         {
 552                                                 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);
 553                                         }
 554                                 } else
 555                                 {
 556                                         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);
 557                                 }
 558                                 break;
 559
 560                                 case EPOINT_TO_JOIN:
 561                                 debug_prefix = "msg epoint->join";
 562                                 join = find_join_id(message->id_to);
 563                                 if (join)
 564                                 {
 565                                         join->message_epoint(message->id_from, message->type, &message->param);
 566                                 } else
 567                                 {
 568                                         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);
 569                                 }
 570                                 break;
 571
 572                                 case JOIN_TO_EPOINT:
 573                                 debug_prefix = "msg join->epoint";
 574                                 epoint = find_epoint_id(message->id_to);
 575                                 if (epoint)
 576                                 {
 577                                         if (epoint->ep_app)
 578                                         {
 579                                                 epoint->ep_app->ea_message_join(message->id_from, message->type, &message->param);
 580                                         } else
 581                                         {
 582                                                 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);
 583                                         }
 584                                 } else
 585                                 {
 586                                         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);
 587                                 }
 588                                 break;
 589
 590                                 case EPOINT_TO_PORT:
 591                                 debug_prefix = "msg epoint->port";
 592                                 port = find_port_id(message->id_to);
 593                                 if (port)
 594                                 {
 595                                         port->message_epoint(message->id_from, message->type, &message->param);
 596 BUDETECT
 597                                 } else
 598                                 {
 599                                         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);
 600                                 }
 601                                 break;
 602
 603                                 default:
 604                                 PERROR("Message flow %d unknown.\n", message->flow);
 605                         }
 606                         message_free(message);
 607                         debug_count++;
 608                         debug_prefix = "message";
 609                 }
 610 BUDETECT
 611
 612                 /* handle socket */
 613                 if (admin_handle())
 614                         all_idle = 0;
 615 BUDETECT
 616
 617 #if 0
 618                 /* check for child to exit (eliminate zombies) */
 619                 if (waitpid(-1, NULL, WNOHANG) > 0)
 620                 {
 621                         PDEBUG(DEBUG_EPOINT, "a child process (created by endpoint) has exitted.\n");
 622                         all_idle = 0;
 623                 }
 624 #endif
 625 //#warning debugging usleep crash
 626 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 627
 628                 /* do idle checking */
 629                 if (idlecheck != now)
 630                 {
 631                         PDEBUG(DEBUG_IDLETIME, "Idle time : %d%%\n", idletime/10000);
 632                         idletime = 0;
 633                         idlecheck = now;
 634                 }
 635
 636                 /* did we do nothing? so we wait to give time to other processes */
 637                 if (all_idle)
 638                 {
 639 //                      pthread_mutex_unlock(&mutex_lcr); // unlock LCR
 640                         debug_usleep(4000, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 641 //                      pthread_mutex_lock(&mutex_lcr); // lock LCR
 642                         idletime += 4000;
 643                 }
 644         }
 645         SPRINT(tracetext, "%s terminated", NAME);
 646         printf("%s\n", tracetext);
 647         start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext);
 648         if (quit)
 649                 add_trace((char *)"signal", NULL, "%d", quit);
 650         end_trace();
 651         ret=0;
 652
 653         /* free all */
 654 free:
 655
 656
 657         /* set scheduler & priority
 658          */
 659         if (options.schedule > 1)
 660         {
 661                 memset(&schedp, 0, sizeof(schedp));
 662                 schedp.sched_priority = options.schedule;
 663                 sched_setscheduler(0, SCHED_OTHER, &schedp);
 664         }
 665         /* reset signals */
 666         if (created_signal)
 667         {
 668                 signal(SIGINT,SIG_DFL);
 669                 signal(SIGHUP,SIG_DFL);
 670                 signal(SIGTERM,SIG_DFL);
 671                 signal(SIGPIPE,SIG_DFL);
 672         }
 673
 674         /* destroy objects */
 675         debug_prefix = "free";
 676
 677         while(port_first)
 678         {
 679                 debug_count++;
 680                 delete port_first;
 681         }
 682         while(epoint_first)
 683         {
 684                 debug_count++;
 685                 delete epoint_first;
 686         }
 687         epoint_first = NULL;
 688         debug_count++;
 689         join_free();
 690
 691         /* free interfaces */
 692         if (interface_first)
 693                 free_interfaces(interface_first);
 694         interface_first = NULL;
 695
 696         /* close isdn ports */
 697         mISDNport_close_all();
 698
 699         /* flush messages */
 700         debug_count++;
 701         i = 0;
 702         while ((message = message_get()))
 703         {
 704                 i++;
 705                 message_free(message);
 706         }
 707         if (i)
 708         {
 709                 PDEBUG(DEBUG_MSG, "freed %d pending messages\n", i);
 710         }
 711
 712         /* free tones */
 713         if (toneset_first)
 714                 free_tones();
 715
 716         /* free admin socket */
 717         admin_cleanup();
 718
 719         /* close lock */
 720         if (created_lock)
 721                 flock(lockfd, LOCK_UN);
 722         if (lockfd >= 0)
 723         {
 724                 chmod(lock, 0700);
 725                 unlink(lock);
 726                 close(lockfd);
 727         }
 728
 729         /* free rulesets */
 730         if (ruleset_first)
 731                 ruleset_free(ruleset_first);
 732         ruleset_first = NULL;
 733
 734         /* free mutex */
 735         if (created_mutexe)
 736                 if (pthread_mutex_destroy(&mutexe))
 737                         fprintf(stderr, "cannot destroy 'PERROR' mutex\n");
 738 //      if (created_mutext)
 739 //              if (pthread_mutex_destroy(&mutext))
 740 //                      fprintf(stderr, "cannot destroy 'trace' mutex\n");
 741         if (created_mutexd)
 742                 if (pthread_mutex_destroy(&mutexd))
 743                         fprintf(stderr, "cannot destroy 'PDEBUG' mutex\n");
 744
 745         /* deinitialize mISDN */
 746         if (created_misdn)
 747                 mISDN_deinitialize();
 748
 749         /* display memory leak */
 750 #define MEMCHECK(a, b) \
 751         if (b) \
 752         { \
 753                 SPRINT(tracetext, a, NAME); \
 754                 start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext); \
 755                 if (ret) add_trace("blocks", NULL, "%d", b); \
 756                 end_trace(); \
 757                 printf("\n******************************\n\007"); \
 758                 printf("\nERROR: %d %s\n", b, a); \
 759                 printf("\n******************************\n"); \
 760                 ret = -1; \
 761         }
 762         MEMCHECK("",memuse)
 763         MEMCHECK("memory block(s) left (port.cpp ...)",pmemuse)
 764         MEMCHECK("memory block(s) left (epoint*.cpp ...)",ememuse)
 765         MEMCHECK("memory block(s) left (join*.cpp)",cmemuse)
 766         MEMCHECK("memory block(s) left (message.c)",mmemuse)
 767         MEMCHECK("memory block(s) left (route.c)",rmemuse)
 768         MEMCHECK("memory block(s) left (args)",amemuse)
 769         MEMCHECK("class(es) left",classuse)
 770         MEMCHECK("file descriptor(s) left",fduse)
 771         MEMCHECK("file handler(s) left",fhuse)
 772
 773         /* unlock LCR process */
 774 //      pthread_mutex_unlock(&mutex_lcr);
 775
 776         /* take me out */
 777         return(ret);
 778 }
 779
 780
 781 #ifdef BUDETECT_DEF
 782 /* special debug function to detect buffer overflow
 783  */
 784 int budetect_stop = 0;
 785 void budetect(const char *file, int line, const char *function)
 786 {
 787         if (budetect_stop)
 788                 return;
 789         /* modify this function to detect race-bugs */
 790 #warning DID YOU MODIFY THIS FUNCTION TO DETECT THE BUFFER OVERFLOW BUG?
 791         class Port *port;
 792         class PmISDN *pmisdn;
 793         struct mISDNport *mISDNport = mISDNport_first;
 794         int i, ii;
 795
 796         while(mISDNport)
 797         {
 798                 i = 0;
 799                 ii = mISDNport->b_num;
 800                 while(i < ii)
 801                 {
 802                         if (mISDNport->b_port[i])
 803                         {
 804                                 port = port_first;
 805                                 while(port)
 806                                 {
 807                                         if ((port->p_type&PORT_CLASS_MASK) == PORT_CLASS_ISDN)
 808                                         {
 809                                                 pmisdn = (class PmISDN *)port;
 810                                                 if (pmisdn->p_isdn_crypt_listen)
 811                                                 {
 812                                                         PERROR_RUNTIME("************************************************\n");
 813                                                         PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 814                                                         PERROR_RUNTIME("** p_isdn_crypt_listen = %d\n", pmisdn->p_isdn_crypt_listen);
 815                                                         PERROR_RUNTIME("************************************************\n");
 816                                                         budetect_stop = 1;
 817                                                 }
 818                                         }
 819                                         if (port == mISDNport->b_port[i])
 820                                                 break;
 821                                         port = port->next;
 822                                         if (!port)
 823                                         {
 824                                                 PERROR_RUNTIME("************************************************\n");
 825                                                 PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 826                                                 PERROR_RUNTIME("** b_port not in list.\n");
 827                                                 PERROR_RUNTIME("************************************************\n");
 828                                                 budetect_stop = 1;
 829                                         }
 830                                 }
 831                         }
 832                         i++;
 833                 }
 834                 mISDNport = mISDNport->next;
 835         }
 836
 837 }
 838 #endif
 839