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 #ifdef SOCKET_MISDN
  30 FILE *debug_fp = NULL;
  31 #else
  32 int global_debug = 0;
  33 #endif
  34 int quit=0;
  35
  36 #if 0
  37 struct lcr_fdset lcr_fdset[FD_SETSIZE];
  38 #endif
  39
  40 pthread_mutex_t mutexd; // debug output mutex
  41 //pthread_mutex_t mutext; // trace output mutex
  42 pthread_mutex_t mutexe; // error output mutex
  43 pthread_mutex_t mutex_lcr; // lcr process mutex
  44
  45 int memuse = 0;
  46 int mmemuse = 0;
  47 int cmemuse = 0;
  48 int ememuse = 0;
  49 int pmemuse = 0;
  50 int amemuse = 0;
  51 int rmemuse = 0;
  52 int classuse = 0;
  53 int fduse = 0;
  54 int fhuse = 0;
  55
  56 char *debug_prefix = 0;
  57 int debug_count = 0;
  58 int last_debug = 0;
  59 int debug_newline = 1;
  60 int nooutput = 0;
  61
  62 void debug_usleep(int msec, char *file, int line, int hour, int min, int sec)
  63 {
  64         usleep(msec);
  65 }
  66
  67 void debug(const char *function, int line, char *prefix, char *buffer)
  68 {
  69         /* if we have a new debug count, we add a mark */
  70         if (last_debug != debug_count)
  71         {
  72                 last_debug = debug_count;
  73                 if (!nooutput)
  74                         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);
  75 #ifdef SOCKET_MISDN
  76                 if (debug_fp)
  77                         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);
  78 #else
  79                 if (options.deb&DEBUG_LOG && global_debug)
  80                         dprint(DBGM_MAN, 0, "--------------------- %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);
  81 #endif
  82         }
  83
  84         if (!nooutput)
  85         {
  86                 if (debug_newline)
  87                         printf("\033[32m%06d %s\033[37m%s", debug_count%1000000, prefix?prefix:"", prefix?" ":"");
  88                 if (function)
  89                         printf("(in %s() line %d): %s", function, line, buffer);
  90                 else
  91                         printf("%s", buffer);
  92         }
  93
  94 #ifdef SOCKET_MISDN
  95         if (debug_fp)
  96 #else
  97         if (options.deb&DEBUG_LOG && global_debug)
  98 #endif
  99         {
 100                 if (debug_newline)
 101                 {
 102                         if (function)
 103 #ifdef SOCKET_MISDN
 104                                 fprintf(debug_fp, "%s%s(in %s() line %d): %s", prefix?prefix:"", prefix?" ":"", function, line, buffer);
 105 #else
 106                                 dprint(DBGM_MAN, 0, "%s%s(in %s() line %d): %s", prefix?prefix:"", prefix?" ":"", function, line, buffer);
 107 #endif
 108                         else
 109 #ifdef SOCKET_MISDN
 110                                 fprintf(debug_fp, "%s%s: %s", prefix?prefix:"", prefix?" ":"", buffer);
 111 #else
 112                                 dprint(DBGM_MAN, 0, "%s%s: %s", prefix?prefix:"", prefix?" ":"", buffer);
 113 #endif
 114                 }
 115         }
 116
 117         debug_newline = 0;
 118         if (buffer[0])
 119                 if (buffer[strlen(buffer)-1] == '\n')
 120                         debug_newline = 1;
 121 }
 122
 123
 124 void _printdebug(const char *function, int line, unsigned long mask, const char *fmt, ...)
 125 {
 126         char buffer[4096];
 127         va_list args;
 128
 129         if (!(options.deb & mask))
 130                 return;
 131         pthread_mutex_lock(&mutexd);
 132
 133         va_start(args,fmt);
 134         VUNPRINT(buffer,sizeof(buffer)-1,fmt,args);
 135         buffer[sizeof(buffer)-1]=0;
 136         va_end(args);
 137
 138         debug(function, line, debug_prefix, buffer);
 139
 140         pthread_mutex_unlock(&mutexd);
 141 }
 142
 143 void _printerror(const char *function, int line, const char *fmt, ...)
 144 {
 145         char buffer[4096];
 146         va_list args;
 147
 148         pthread_mutex_lock(&mutexe);
 149
 150         va_start(args,fmt);
 151         VUNPRINT(buffer,sizeof(buffer)-1,fmt,args);
 152         buffer[sizeof(buffer)-1]=0;
 153         va_end(args);
 154
 155         if (options.deb)
 156                 debug(function, line, "ERROR", buffer);
 157         else /* only if we do not debug */
 158         {
 159                 if (function)
 160                         fprintf(stderr, "ERROR (in %s() line %d) %s", function, line, buffer);
 161                 else
 162                         fprintf(stderr, "ERROR %s", buffer);
 163         }
 164
 165         pthread_mutex_unlock(&mutexe);
 166 }
 167
 168
 169 void sighandler(int sigset)
 170 {
 171         struct sched_param schedp;
 172
 173         if (sigset == SIGHUP)
 174                 return;
 175         if (sigset == SIGPIPE)
 176                 return;
 177         if (!quit)
 178         {
 179                 quit=1;
 180                 /* set scheduler & priority */
 181                 if (options.schedule > 1)
 182                 {
 183                         memset(&schedp, 0, sizeof(schedp));
 184                         schedp.sched_priority = 0;
 185                         sched_setscheduler(0, SCHED_OTHER, &schedp);
 186                 }
 187                 fprintf(stderr, "LCR: Signal received: %d\n", sigset);
 188                 PERROR("Signal received: %d\n", sigset);
 189         }
 190 }
 191
 192
 193 /*
 194  * the main
 195  */
 196 int main(int argc, char *argv[])
 197 {
 198         int                     ret = -1;
 199         int                     lockfd = -1; /* file lock */
 200         struct message          *message;
 201         class Port              *port;
 202         class Endpoint          *epoint;
 203         class Join              *join;
 204         int                     i;
 205         int                     all_idle;
 206         char                    prefix_string[64];
 207         struct sched_param      schedp;
 208         char                    *debug_prefix = "alloc";
 209         int                     created_mutexd = 0,/* created_mutext = 0,*/ created_mutexe = 0,
 210                                 created_lock = 0, created_signal = 0, created_debug = 0;
 211         int                     idletime = 0, idlecheck = 0;
 212         char                    tracetext[256];
 213
 214 #if 0
 215         /* init fdset */
 216         memset(lcr_fdset, 0, sizeof(lcr_fdset));
 217 #endif
 218
 219         /* lock LCR process */
 220         pthread_mutex_lock(&mutex_lcr);
 221
 222         /* current time */
 223         GET_NOW();
 224
 225         /* show version */
 226         printf("\n** %s  Version %s\n\n", NAME, VERSION_STRING);
 227
 228         /* show options */
 229         if (argc <= 1)
 230         {
 231                 usage:
 232                 printf("\n");
 233                 printf("Usage: lcr (query | start | fork | rules | route)\n");
 234                 printf("query     = Show available isdn ports.\n");
 235                 printf("start     = Run lcr normally, abort with CTRL+C.\n");
 236                 printf("fork      = Do daemon fork and run as background process.\n");
 237                 printf("interface = Get help of available interface syntax.\n");
 238                 printf("rules     = Get help of available routing rule syntax.\n");
 239                 printf("rules [action] = Get individual help for given action.\n");
 240 //              printf("route = Show current routing as it is parsed.\n");
 241                 printf("\n");
 242                 ret = 999;
 243                 goto free;
 244         }
 245
 246         /* init crc */
 247         crc_init();
 248
 249         /* check for root (real or effective) */
 250         if (getuid() && geteuid())
 251         {
 252                 fprintf(stderr, "Please run %s as super-user.\n", NAME);
 253                 goto free;
 254         }
 255
 256         /* the mutex init */
 257         if (pthread_mutex_init(&mutexd, NULL))
 258         {
 259                 fprintf(stderr, "cannot create 'PDEBUG' mutex\n");
 260                 goto free;
 261         }
 262         created_mutexd = 1;
 263 //      if (pthread_mutex_init(&mutext, NULL))
 264 //      {
 265 //              fprintf(stderr, "cannot create 'trace' mutex\n");
 266 //              goto free;
 267 //      }
 268 //      created_mutext = 1;
 269         if (pthread_mutex_init(&mutexe, NULL))
 270         {
 271                 fprintf(stderr, "cannot create 'PERROR' mutex\n");
 272                 goto free;
 273         }
 274         created_mutexe = 1;
 275
 276         /* show interface */
 277         if (!(strcasecmp(argv[1],"interface")))
 278         {
 279                 doc_interface();
 280                 ret = 0;
 281                 goto free;
 282         }
 283
 284         /* show rules */
 285         if (!(strcasecmp(argv[1],"rules")))
 286         {
 287                 if (argc <= 2)
 288                         doc_rules(NULL);
 289                 else
 290                         doc_rules(argv[2]);
 291                 ret = 0;
 292                 goto free;
 293         }
 294
 295         /* query available isdn ports */
 296         if (!(strcasecmp(argv[1],"query")))
 297         {
 298                 mISDN_port_info();
 299                 ret = 0;
 300                 goto free;
 301         }
 302
 303         /* read options */
 304         if (read_options() == 0)
 305                 goto free;
 306
 307         /* init mISDN */
 308         if (mISDN_initialize() < 0)
 309                 goto free;
 310         created_debug = 1;
 311
 312         /* read ruleset(s) */
 313         if (!(ruleset_first = ruleset_parse()))
 314                 goto free;
 315
 316         /* set pointer to main ruleset */
 317         ruleset_main = getrulesetbyname("main");
 318         if (!ruleset_main)
 319         {
 320                 fprintf(stderr, "\n***\n -> Missing 'main' ruleset, causing ALL calls to be disconnected.\n***\n\n");
 321                 PDEBUG(DEBUG_LOG, "Missing 'main' ruleset, causing ALL calls to be disconnected.\n");
 322                 sleep(2);
 323         }
 324
 325 #if 0
 326         /* query available isdn ports */
 327         if (!(strcasecmp(argv[1],"route")))
 328         {
 329                 ruleset_debug(ruleset_first);
 330                 ret = 0;
 331                 goto free;
 332         }
 333 #endif
 334
 335         /* do fork in special cases */
 336         if (!(strcasecmp(argv[1],"fork")))
 337         {
 338                 pid_t pid;
 339
 340                 /* do daemon fork */
 341                 pid = fork();
 342
 343                 if (pid < 0)
 344                 {
 345                         fprintf(stderr, "Cannot fork!\n");
 346                         goto free;
 347                 }
 348                 if (pid != 0)
 349                 {
 350                         exit(0);
 351                 }
 352                 usleep(200000);
 353                 printf("\n");
 354
 355                 /* do second fork */
 356                 pid = fork();
 357
 358                 if (pid < 0)
 359                 {
 360                         fprintf(stderr, "Cannot fork!\n");
 361                         goto free;
 362                 }
 363                 if (pid != 0)
 364                 {
 365                         printf("LCR: Starting daemon.\n");
 366                         exit(0);
 367                 }
 368                 nooutput = 1;
 369         } else
 370         /* if not start */
 371         if (!!strcasecmp(argv[1],"start"))
 372         {
 373                 goto usage;
 374         }
 375
 376         /* create lock and lock! */
 377         if ((lockfd = open("/var/run/lcr.lock", O_CREAT, 0)) < 0)
 378         {
 379                 fprintf(stderr, "Cannot create lock file: /var/run/lcr.lock\n");
 380                 goto free;
 381         }
 382         if (flock(lockfd, LOCK_EX|LOCK_NB) < 0)
 383         {
 384                 if (errno == EWOULDBLOCK)
 385                         fprintf(stderr, "LCR: Another LCR process is running. Please kill the other one.\n");
 386                 else    fprintf(stderr, "Locking process failed: errno=%d\n", errno);
 387                 goto free;
 388         }
 389         created_lock = 1;
 390
 391         /* initialize admin socket */
 392         if (admin_init())
 393         {
 394                 fprintf(stderr, "Unable to initialize admin socket.\n");
 395                 goto free;
 396         }
 397
 398         /* generate alaw / ulaw tables */
 399         generate_tables(options.law);
 400
 401         /* load tones (if requested) */
 402         if (fetch_tones() == 0)
 403         {
 404                 fprintf(stderr, "Unable to fetch tones into memory.\n");
 405                 goto free;
 406         }
 407
 408         /* read interfaces and open ports */
 409         if (!read_interfaces())
 410         {
 411                 PERROR_RUNTIME("No interfaces specified or failed to parse interface.conf.\n");
 412                 fprintf(stderr, "No interfaces specified or failed to parse interface.conf.\n");
 413                 goto free;
 414         }
 415         relink_interfaces();
 416         interface_first = interface_newlist;
 417         interface_newlist = NULL;
 418
 419         /* locking memory paging */
 420         i = 0;
 421         while(i < 10)
 422         {
 423                 if (mlockall(MCL_CURRENT | MCL_FUTURE) >= 0)
 424                         break;
 425                 usleep(200000);
 426                 i++;
 427         }
 428         if (i == 10)
 429         {
 430                 switch(errno)
 431                 {
 432                         case ENOMEM:
 433                         fprintf(stderr, "Not enough memory to lock paging, exitting...\n");
 434                         break;
 435                         case EPERM:
 436                         fprintf(stderr, "No permission to lock paging, exitting...\n");
 437                         break;
 438                         case EFAULT:
 439                         fprintf(stderr, "'Bad address' while locking paging, exitting...\n");
 440                         break;
 441                         default:
 442                         fprintf(stderr, "Unknown error %d while locking paging, exitting...\n", errno);
 443                 }
 444                 goto free;
 445         }
 446
 447         /* set real time scheduler & priority */
 448         if (options.schedule > 1)
 449         {
 450                 memset(&schedp, 0, sizeof(schedp));
 451                 schedp.sched_priority = options.schedule;
 452                 ret = sched_setscheduler(0, SCHED_RR, &schedp);
 453                 if (ret < 0)
 454                 {
 455                         PERROR("Scheduling failed with given priority %d (errno = %d).\nCheck options.conf 'schedule', exitting...\n", options.schedule, errno);
 456                         goto free;
 457                 }
 458         }
 459
 460         /* signal handlers */
 461         signal(SIGINT,sighandler);
 462         signal(SIGHUP,sighandler);
 463         signal(SIGTERM,sighandler);
 464         signal(SIGPIPE,sighandler);
 465         created_signal = 1;
 466
 467         /*** main loop ***/
 468         SPRINT(tracetext, "%s %s started, waiting for calls...", NAME, VERSION_STRING);
 469         start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext);
 470         printf("%s\n", tracetext);
 471         end_trace();
 472         GET_NOW();
 473         quit = 0;
 474         while(!quit)
 475         {
 476
 477                 last_d = now_d;
 478                 GET_NOW();
 479                 if (now_d-last_d > 1.0)
 480                 {
 481                         PERROR("LCR was stalling %d.%d seconds\n", ((int)((now_d-last_d)*10.0))/10, (int)((now_d-last_d)*10.0));
 482                 }
 483                 /* all loops must be counted from the beginning since nodes might get freed during handler */
 484                 all_idle = 1;
 485
 486 //#warning debugging usleep crash
 487 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 488
 489                 /* handle mISDN messages from kernel */
 490                 debug_prefix = "ISDN";
 491                 if (mISDN_handler())
 492                         all_idle = 0;
 493 //#warning debugging usleep crash
 494 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 495
 496 BUDETECT
 497
 498                 /* loop through all port ports and call their handler */
 499                 port_again:
 500                 port = port_first;
 501                 while(port)
 502                 {
 503                         debug_prefix = port->p_name;
 504                         debug_count++;
 505                         ret = port->handler();
 506                         if (ret)
 507                                 all_idle = 0;
 508                         if (ret < 0) /* port has been destroyed */
 509                                 goto port_again;
 510                         port = port->next;
 511                 }
 512
 513                 /* loop through all epoint and call their handler */
 514                 epoint_again:
 515                 epoint = epoint_first;
 516                 while(epoint)
 517                 {
 518                         debug_prefix = prefix_string;
 519                         SPRINT(prefix_string, "ep%ld", epoint->ep_serial);
 520                         debug_count++;
 521                         ret = epoint->handler();
 522                         if (ret)
 523                                 all_idle = 0;
 524                         if (ret < 0) /* epoint has been destroyed */
 525                                 goto epoint_again;
 526                         epoint = epoint->next;
 527                 }
 528
 529                 /* loop through all joins and call their handler */
 530                 join_again:
 531                 join = join_first;
 532                 while(join)
 533                 {
 534                         debug_prefix = "join";
 535                         debug_count++;
 536                         ret = join->handler();
 537                         if (ret)
 538                                 all_idle = 0;
 539                         if (ret < 0) /* join has been destroyed */
 540                                 goto join_again;
 541                         join = join->next;
 542                 }
 543
 544                 debug_prefix = 0;
 545
 546                 /* process any message */
 547                 debug_count++;
 548                 debug_prefix = "message";
 549                 while ((message = message_get()))
 550                 {
 551                         all_idle = 0;
 552                         switch(message->flow)
 553                         {
 554                                 case PORT_TO_EPOINT:
 555                                 debug_prefix = "msg port->epoint";
 556                                 epoint = find_epoint_id(message->id_to);
 557                                 if (epoint)
 558                                 {
 559                                         if (epoint->ep_app)
 560                                         {
 561                                                 epoint->ep_app->ea_message_port(message->id_from, message->type, &message->param);
 562                                         } else
 563                                         {
 564                                                 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);
 565                                         }
 566                                 } else
 567                                 {
 568                                         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);
 569                                 }
 570                                 break;
 571
 572                                 case EPOINT_TO_JOIN:
 573                                 debug_prefix = "msg epoint->join";
 574                                 join = find_join_id(message->id_to);
 575                                 if (join)
 576                                 {
 577                                         join->message_epoint(message->id_from, message->type, &message->param);
 578                                 } else
 579                                 {
 580                                         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);
 581                                 }
 582                                 break;
 583
 584                                 case JOIN_TO_EPOINT:
 585                                 debug_prefix = "msg join->epoint";
 586                                 epoint = find_epoint_id(message->id_to);
 587                                 if (epoint)
 588                                 {
 589                                         if (epoint->ep_app)
 590                                         {
 591                                                 epoint->ep_app->ea_message_join(message->id_from, message->type, &message->param);
 592                                         } else
 593                                         {
 594                                                 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);
 595                                         }
 596                                 } else
 597                                 {
 598                                         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);
 599                                 }
 600                                 break;
 601
 602                                 case EPOINT_TO_PORT:
 603                                 debug_prefix = "msg epoint->port";
 604                                 port = find_port_id(message->id_to);
 605                                 if (port)
 606                                 {
 607                                         port->message_epoint(message->id_from, message->type, &message->param);
 608 BUDETECT
 609                                 } else
 610                                 {
 611                                         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);
 612                                 }
 613                                 break;
 614
 615                                 default:
 616                                 PERROR("Message flow %d unknown.\n", message->flow);
 617                         }
 618                         message_free(message);
 619                         debug_count++;
 620                         debug_prefix = "message";
 621                 }
 622 BUDETECT
 623
 624                 /* handle socket */
 625                 if (admin_handle())
 626                         all_idle = 0;
 627 BUDETECT
 628
 629 #if 0
 630                 /* check for child to exit (eliminate zombies) */
 631                 if (waitpid(-1, NULL, WNOHANG) > 0)
 632                 {
 633                         PDEBUG(DEBUG_EPOINT, "a child process (created by endpoint) has exitted.\n");
 634                         all_idle = 0;
 635                 }
 636 #endif
 637 //#warning debugging usleep crash
 638 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 639
 640                 /* do idle checking */
 641                 if (idlecheck != now)
 642                 {
 643                         PDEBUG(DEBUG_IDLETIME, "Idle time : %d%%\n", idletime/10000);
 644                         idletime = 0;
 645                         idlecheck = now;
 646                 }
 647
 648                 /* did we do nothing? so we wait to give time to other processes */
 649                 if (all_idle)
 650                 {
 651                         pthread_mutex_unlock(&mutex_lcr); // unlock LCR
 652                         debug_usleep(4000, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 653                         pthread_mutex_lock(&mutex_lcr); // lock LCR
 654                         idletime += 4000;
 655                 }
 656         }
 657         SPRINT(tracetext, "%s terminated", NAME);
 658         printf("%s\n", tracetext);
 659         start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext);
 660         if (ret)
 661                 add_trace("error", NULL, "%d", ret);
 662         end_trace();
 663         ret=0;
 664
 665         /* free all */
 666 free:
 667
 668
 669         /* set scheduler & priority
 670          */
 671         if (options.schedule > 1)
 672         {
 673                 memset(&schedp, 0, sizeof(schedp));
 674                 schedp.sched_priority = options.schedule;
 675                 sched_setscheduler(0, SCHED_OTHER, &schedp);
 676         }
 677         /* reset signals */
 678         if (created_signal)
 679         {
 680                 signal(SIGINT,SIG_DFL);
 681                 signal(SIGHUP,SIG_DFL);
 682                 signal(SIGTERM,SIG_DFL);
 683                 signal(SIGPIPE,SIG_DFL);
 684         }
 685
 686         /* destroy objects */
 687         debug_prefix = "free";
 688
 689         while(port_first)
 690         {
 691                 debug_count++;
 692                 delete port_first;
 693         }
 694         while(epoint_first)
 695         {
 696                 debug_count++;
 697                 delete epoint_first;
 698         }
 699         epoint_first = NULL;
 700         debug_count++;
 701         join_free();
 702
 703         /* free interfaces */
 704         if (interface_first)
 705                 free_interfaces(interface_first);
 706         interface_first = NULL;
 707
 708         /* close isdn ports */
 709         mISDNport_close_all();
 710
 711         /* flush messages */
 712         debug_count++;
 713         i = 0;
 714         while ((message = message_get()))
 715         {
 716                 i++;
 717                 message_free(message);
 718         }
 719         if (i)
 720         {
 721                 PDEBUG(DEBUG_MSG, "freed %d pending messages\n", i);
 722         }
 723
 724         /* free tones */
 725         if (toneset_first)
 726                 free_tones();
 727
 728         /* free admin socket */
 729         admin_cleanup();
 730
 731         /* close lock */
 732         if (created_lock)
 733                 flock(lockfd, LOCK_UN);
 734         if (lockfd >= 0)
 735                 close(lockfd);
 736
 737         /* free rulesets */
 738         if (ruleset_first)
 739                 ruleset_free(ruleset_first);
 740         ruleset_first = NULL;
 741
 742         /* free mutex */
 743         if (created_mutexe)
 744                 if (pthread_mutex_destroy(&mutexe))
 745                         fprintf(stderr, "cannot destroy 'PERROR' mutex\n");
 746 //      if (created_mutext)
 747 //              if (pthread_mutex_destroy(&mutext))
 748 //                      fprintf(stderr, "cannot destroy 'trace' mutex\n");
 749         if (created_mutexd)
 750                 if (pthread_mutex_destroy(&mutexd))
 751                         fprintf(stderr, "cannot destroy 'PDEBUG' mutex\n");
 752
 753         /* deinitialize mISDN */
 754         mISDN_deinitialize();
 755
 756         /* display memory leak */
 757 #define MEMCHECK(a, b) \
 758         if (b) \
 759         { \
 760                 SPRINT(tracetext, a, NAME); \
 761                 start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext); \
 762                 if (ret) add_trace("blocks", NULL, "%d", b); \
 763                 end_trace(); \
 764                 printf("\n******************************\n\007"); \
 765                 printf("\nERROR: %d %s\n", b, a); \
 766                 printf("\n******************************\n"); \
 767                 ret = -1; \
 768         }
 769         MEMCHECK("",memuse)
 770         MEMCHECK("memory block(s) left (port.cpp ...)",pmemuse)
 771         MEMCHECK("memory block(s) left (epoint*.cpp ...)",ememuse)
 772         MEMCHECK("memory block(s) left (join*.cpp)",cmemuse)
 773         MEMCHECK("memory block(s) left (message.c)",mmemuse)
 774         MEMCHECK("memory block(s) left (route.c)",rmemuse)
 775         MEMCHECK("memory block(s) left (args)",amemuse)
 776         MEMCHECK("class(es) left",classuse)
 777         MEMCHECK("file descriptor(s) left",fduse)
 778         MEMCHECK("file handler(s) left",fhuse)
 779
 780         /* unlock LCR process */
 781         pthread_mutex_unlock(&mutex_lcr);
 782
 783         /* take me out */
 784         return(ret);
 785 }
 786
 787
 788 #ifdef BUDETECT_DEF
 789 /* special debug function to detect buffer overflow
 790  */
 791 int budetect_stop = 0;
 792 void budetect(const char *file, int line, char *function)
 793 {
 794         if (budetect_stop)
 795                 return;
 796         /* modify this function to detect race-bugs */
 797 #warning DID YOU MODIFY THIS FUNCTION TO DETECT THE BUFFER OVERFLOW BUG?
 798         class Port *port;
 799         class PmISDN *pmisdn;
 800         struct mISDNport *mISDNport = mISDNport_first;
 801         int i, ii;
 802
 803         while(mISDNport)
 804         {
 805                 i = 0;
 806                 ii = mISDNport->b_num;
 807                 while(i < ii)
 808                 {
 809                         if (mISDNport->b_port[i])
 810                         {
 811                                 port = port_first;
 812                                 while(port)
 813                                 {
 814                                         if ((port->p_type&PORT_CLASS_MASK) == PORT_CLASS_ISDN)
 815                                         {
 816                                                 pmisdn = (class PmISDN *)port;
 817                                                 if (pmisdn->p_isdn_crypt_listen)
 818                                                 {
 819                                                         PERROR_RUNTIME("************************************************\n");
 820                                                         PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 821                                                         PERROR_RUNTIME("** p_isdn_crypt_listen = %d\n", pmisdn->p_isdn_crypt_listen);
 822                                                         PERROR_RUNTIME("************************************************\n");
 823                                                         budetect_stop = 1;
 824                                                 }
 825                                         }
 826                                         if (port == mISDNport->b_port[i])
 827                                                 break;
 828                                         port = port->next;
 829                                         if (!port)
 830                                         {
 831                                                 PERROR_RUNTIME("************************************************\n");
 832                                                 PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 833                                                 PERROR_RUNTIME("** b_port not in list.\n");
 834                                                 PERROR_RUNTIME("************************************************\n");
 835                                                 budetect_stop = 1;
 836                                         }
 837                                 }
 838                         }
 839                         i++;
 840                 }
 841                 mISDNport = mISDNport->next;
 842         }
 843
 844 }
 845 #endif
 846