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 lcr_msg          *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                                 created_misdn = 0;
 212         int                     idletime = 0, idlecheck = 0;
 213         char                    tracetext[256];
 214
 215 #if 0
 216         /* init fdset */
 217         memset(lcr_fdset, 0, sizeof(lcr_fdset));
 218 #endif
 219
 220         /* lock LCR process */
 221 //      pthread_mutex_lock(&mutex_lcr);
 222
 223         /* current time */
 224         GET_NOW();
 225
 226         /* show version */
 227         printf("\n** %s  Version %s\n\n", NAME, VERSION_STRING);
 228
 229         /* show options */
 230         if (argc <= 1)
 231         {
 232                 usage:
 233                 printf("\n");
 234                 printf("Usage: lcr (query | start | fork | rules | route)\n");
 235                 printf("query     = Show available isdn ports.\n");
 236                 printf("start     = Run lcr normally, abort with CTRL+C.\n");
 237                 printf("fork      = Do daemon fork and run as background process.\n");
 238                 printf("interface = Get help of available interface syntax.\n");
 239                 printf("rules     = Get help of available routing rule syntax.\n");
 240                 printf("rules [action] = Get individual help for given action.\n");
 241 //              printf("route = Show current routing as it is parsed.\n");
 242                 printf("\n");
 243                 ret = 999;
 244                 goto free;
 245         }
 246
 247         /* init crc */
 248         crc_init();
 249
 250         /* check for root (real or effective) */
 251         if (getuid() && geteuid())
 252         {
 253                 fprintf(stderr, "Please run %s as super-user.\n", NAME);
 254                 goto free;
 255         }
 256
 257         /* the mutex init */
 258         if (pthread_mutex_init(&mutexd, NULL))
 259         {
 260                 fprintf(stderr, "cannot create 'PDEBUG' mutex\n");
 261                 goto free;
 262         }
 263         created_mutexd = 1;
 264 //      if (pthread_mutex_init(&mutext, NULL))
 265 //      {
 266 //              fprintf(stderr, "cannot create 'trace' mutex\n");
 267 //              goto free;
 268 //      }
 269 //      created_mutext = 1;
 270         if (pthread_mutex_init(&mutexe, NULL))
 271         {
 272                 fprintf(stderr, "cannot create 'PERROR' mutex\n");
 273                 goto free;
 274         }
 275         created_mutexe = 1;
 276
 277         /* show interface */
 278         if (!(strcasecmp(argv[1],"interface")))
 279         {
 280                 doc_interface();
 281                 ret = 0;
 282                 goto free;
 283         }
 284
 285         /* show rules */
 286         if (!(strcasecmp(argv[1],"rules")))
 287         {
 288                 if (argc <= 2)
 289                         doc_rules(NULL);
 290                 else
 291                         doc_rules(argv[2]);
 292                 ret = 0;
 293                 goto free;
 294         }
 295
 296         /* query available isdn ports */
 297         if (!(strcasecmp(argv[1],"query")))
 298         {
 299                 mISDN_port_info();
 300                 ret = 0;
 301                 goto free;
 302         }
 303
 304         /* read options */
 305         if (read_options() == 0)
 306                 goto free;
 307
 308         /* init mISDN */
 309         if (mISDN_initialize() < 0)
 310                 goto free;
 311         created_misdn = 1;
 312         created_debug = 1;
 313
 314         /* read ruleset(s) */
 315         if (!(ruleset_first = ruleset_parse()))
 316                 goto free;
 317
 318         /* set pointer to main ruleset */
 319         ruleset_main = getrulesetbyname("main");
 320         if (!ruleset_main)
 321         {
 322                 fprintf(stderr, "\n***\n -> Missing 'main' ruleset, causing ALL calls to be disconnected.\n***\n\n");
 323                 PDEBUG(DEBUG_LOG, "Missing 'main' ruleset, causing ALL calls to be disconnected.\n");
 324                 sleep(2);
 325         }
 326
 327 #if 0
 328         /* query available isdn ports */
 329         if (!(strcasecmp(argv[1],"route")))
 330         {
 331                 ruleset_debug(ruleset_first);
 332                 ret = 0;
 333                 goto free;
 334         }
 335 #endif
 336
 337         /* do fork in special cases */
 338         if (!(strcasecmp(argv[1],"fork")))
 339         {
 340                 pid_t pid;
 341
 342                 /* do daemon fork */
 343                 pid = fork();
 344
 345                 if (pid < 0)
 346                 {
 347                         fprintf(stderr, "Cannot fork!\n");
 348                         goto free;
 349                 }
 350                 if (pid != 0)
 351                 {
 352                         exit(0);
 353                 }
 354                 usleep(200000);
 355                 printf("\n");
 356
 357                 /* do second fork */
 358                 pid = fork();
 359
 360                 if (pid < 0)
 361                 {
 362                         fprintf(stderr, "Cannot fork!\n");
 363                         goto free;
 364                 }
 365                 if (pid != 0)
 366                 {
 367                         printf("LCR: Starting daemon.\n");
 368                         exit(0);
 369                 }
 370                 nooutput = 1;
 371         } else
 372         /* if not start */
 373         if (!!strcasecmp(argv[1],"start"))
 374         {
 375                 goto usage;
 376         }
 377
 378         /* create lock and lock! */
 379         if ((lockfd = open("/var/run/lcr.lock", O_CREAT, 0)) < 0)
 380         {
 381                 fprintf(stderr, "Cannot create lock file: /var/run/lcr.lock\n");
 382                 goto free;
 383         }
 384         if (flock(lockfd, LOCK_EX|LOCK_NB) < 0)
 385         {
 386                 if (errno == EWOULDBLOCK)
 387                         fprintf(stderr, "LCR: Another LCR process is running. Please kill the other one.\n");
 388                 else    fprintf(stderr, "Locking process failed: errno=%d\n", errno);
 389                 goto free;
 390         }
 391         created_lock = 1;
 392
 393         /* initialize admin socket */
 394         if (admin_init())
 395         {
 396                 fprintf(stderr, "Unable to initialize admin socket.\n");
 397                 goto free;
 398         }
 399
 400         /* generate alaw / ulaw tables */
 401         generate_tables(options.law);
 402
 403         /* load tones (if requested) */
 404         if (fetch_tones() == 0)
 405         {
 406                 fprintf(stderr, "Unable to fetch tones into memory.\n");
 407                 goto free;
 408         }
 409
 410         /* read interfaces and open ports */
 411         if (!read_interfaces())
 412         {
 413                 PERROR_RUNTIME("No interfaces specified or failed to parse interface.conf.\n");
 414                 fprintf(stderr, "No interfaces specified or failed to parse interface.conf.\n");
 415                 goto free;
 416         }
 417         relink_interfaces();
 418         interface_first = interface_newlist;
 419         interface_newlist = NULL;
 420
 421         /* locking memory paging */
 422         i = 0;
 423         while(i < 10)
 424         {
 425                 if (mlockall(MCL_CURRENT | MCL_FUTURE) >= 0)
 426                         break;
 427                 usleep(200000);
 428                 i++;
 429         }
 430         if (i == 10)
 431         {
 432                 switch(errno)
 433                 {
 434                         case ENOMEM:
 435                         fprintf(stderr, "Not enough memory to lock paging, exitting...\n");
 436                         break;
 437                         case EPERM:
 438                         fprintf(stderr, "No permission to lock paging, exitting...\n");
 439                         break;
 440                         case EFAULT:
 441                         fprintf(stderr, "'Bad address' while locking paging, exitting...\n");
 442                         break;
 443                         default:
 444                         fprintf(stderr, "Unknown error %d while locking paging, exitting...\n", errno);
 445                 }
 446                 goto free;
 447         }
 448
 449         /* set real time scheduler & priority */
 450         if (options.schedule > 1)
 451         {
 452                 memset(&schedp, 0, sizeof(schedp));
 453                 schedp.sched_priority = options.schedule;
 454                 ret = sched_setscheduler(0, SCHED_RR, &schedp);
 455                 if (ret < 0)
 456                 {
 457                         PERROR("Scheduling failed with given priority %d (errno = %d).\nCheck options.conf 'schedule', exitting...\n", options.schedule, errno);
 458                         goto free;
 459                 }
 460         }
 461
 462         /* signal handlers */
 463         signal(SIGINT,sighandler);
 464         signal(SIGHUP,sighandler);
 465         signal(SIGTERM,sighandler);
 466         signal(SIGPIPE,sighandler);
 467         created_signal = 1;
 468
 469         /*** main loop ***/
 470         SPRINT(tracetext, "%s %s started, waiting for calls...", NAME, VERSION_STRING);
 471         start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext);
 472         printf("%s\n", tracetext);
 473         end_trace();
 474         GET_NOW();
 475         quit = 0;
 476         while(!quit)
 477         {
 478
 479                 last_d = now_d;
 480                 GET_NOW();
 481                 if (now_d-last_d > 1.0)
 482                 {
 483                         PERROR("LCR was stalling %d.%d seconds\n", ((int)((now_d-last_d)*10.0))/10, (int)((now_d-last_d)*10.0));
 484                 }
 485                 /* all loops must be counted from the beginning since nodes might get freed during handler */
 486                 all_idle = 1;
 487
 488 //#warning debugging usleep crash
 489 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 490
 491                 /* handle mISDN messages from kernel */
 492                 debug_prefix = "ISDN";
 493                 if (mISDN_handler())
 494                         all_idle = 0;
 495 //#warning debugging usleep crash
 496 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 497
 498 BUDETECT
 499
 500                 /* loop through all port ports and call their handler */
 501                 port_again:
 502                 port = port_first;
 503                 while(port)
 504                 {
 505                         debug_prefix = port->p_name;
 506                         debug_count++;
 507                         ret = port->handler();
 508                         if (ret)
 509                                 all_idle = 0;
 510                         if (ret < 0) /* port has been destroyed */
 511                                 goto port_again;
 512                         port = port->next;
 513                 }
 514
 515                 /* loop through all epoint and call their handler */
 516                 epoint_again:
 517                 epoint = epoint_first;
 518                 while(epoint)
 519                 {
 520                         debug_prefix = prefix_string;
 521                         SPRINT(prefix_string, "ep%ld", epoint->ep_serial);
 522                         debug_count++;
 523                         ret = epoint->handler();
 524                         if (ret)
 525                                 all_idle = 0;
 526                         if (ret < 0) /* epoint has been destroyed */
 527                                 goto epoint_again;
 528                         epoint = epoint->next;
 529                 }
 530
 531                 /* loop through all joins and call their handler */
 532                 join_again:
 533                 join = join_first;
 534                 while(join)
 535                 {
 536                         debug_prefix = "join";
 537                         debug_count++;
 538                         ret = join->handler();
 539                         if (ret)
 540                                 all_idle = 0;
 541                         if (ret < 0) /* join has been destroyed */
 542                                 goto join_again;
 543                         join = join->next;
 544                 }
 545
 546                 debug_prefix = 0;
 547
 548                 /* process any message */
 549                 debug_count++;
 550                 debug_prefix = "message";
 551                 while ((message = message_get()))
 552                 {
 553                         all_idle = 0;
 554                         switch(message->flow)
 555                         {
 556                                 case PORT_TO_EPOINT:
 557                                 debug_prefix = "msg port->epoint";
 558                                 epoint = find_epoint_id(message->id_to);
 559                                 if (epoint)
 560                                 {
 561                                         if (epoint->ep_app)
 562                                         {
 563                                                 epoint->ep_app->ea_message_port(message->id_from, message->type, &message->param);
 564                                         } else
 565                                         {
 566                                                 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);
 567                                         }
 568                                 } else
 569                                 {
 570                                         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);
 571                                 }
 572                                 break;
 573
 574                                 case EPOINT_TO_JOIN:
 575                                 debug_prefix = "msg epoint->join";
 576                                 join = find_join_id(message->id_to);
 577                                 if (join)
 578                                 {
 579                                         join->message_epoint(message->id_from, message->type, &message->param);
 580                                 } else
 581                                 {
 582                                         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);
 583                                 }
 584                                 break;
 585
 586                                 case JOIN_TO_EPOINT:
 587                                 debug_prefix = "msg join->epoint";
 588                                 epoint = find_epoint_id(message->id_to);
 589                                 if (epoint)
 590                                 {
 591                                         if (epoint->ep_app)
 592                                         {
 593                                                 epoint->ep_app->ea_message_join(message->id_from, message->type, &message->param);
 594                                         } else
 595                                         {
 596                                                 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);
 597                                         }
 598                                 } else
 599                                 {
 600                                         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);
 601                                 }
 602                                 break;
 603
 604                                 case EPOINT_TO_PORT:
 605                                 debug_prefix = "msg epoint->port";
 606                                 port = find_port_id(message->id_to);
 607                                 if (port)
 608                                 {
 609                                         port->message_epoint(message->id_from, message->type, &message->param);
 610 BUDETECT
 611                                 } else
 612                                 {
 613                                         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);
 614                                 }
 615                                 break;
 616
 617                                 default:
 618                                 PERROR("Message flow %d unknown.\n", message->flow);
 619                         }
 620                         message_free(message);
 621                         debug_count++;
 622                         debug_prefix = "message";
 623                 }
 624 BUDETECT
 625
 626                 /* handle socket */
 627                 if (admin_handle())
 628                         all_idle = 0;
 629 BUDETECT
 630
 631 #if 0
 632                 /* check for child to exit (eliminate zombies) */
 633                 if (waitpid(-1, NULL, WNOHANG) > 0)
 634                 {
 635                         PDEBUG(DEBUG_EPOINT, "a child process (created by endpoint) has exitted.\n");
 636                         all_idle = 0;
 637                 }
 638 #endif
 639 //#warning debugging usleep crash
 640 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 641
 642                 /* do idle checking */
 643                 if (idlecheck != now)
 644                 {
 645                         PDEBUG(DEBUG_IDLETIME, "Idle time : %d%%\n", idletime/10000);
 646                         idletime = 0;
 647                         idlecheck = now;
 648                 }
 649
 650                 /* did we do nothing? so we wait to give time to other processes */
 651                 if (all_idle)
 652                 {
 653 //                      pthread_mutex_unlock(&mutex_lcr); // unlock LCR
 654                         debug_usleep(4000, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 655 //                      pthread_mutex_lock(&mutex_lcr); // lock LCR
 656                         idletime += 4000;
 657                 }
 658         }
 659         SPRINT(tracetext, "%s terminated", NAME);
 660         printf("%s\n", tracetext);
 661         start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext);
 662         if (ret)
 663                 add_trace("error", NULL, "%d", ret);
 664         end_trace();
 665         ret=0;
 666
 667         /* free all */
 668 free:
 669
 670
 671         /* set scheduler & priority
 672          */
 673         if (options.schedule > 1)
 674         {
 675                 memset(&schedp, 0, sizeof(schedp));
 676                 schedp.sched_priority = options.schedule;
 677                 sched_setscheduler(0, SCHED_OTHER, &schedp);
 678         }
 679         /* reset signals */
 680         if (created_signal)
 681         {
 682                 signal(SIGINT,SIG_DFL);
 683                 signal(SIGHUP,SIG_DFL);
 684                 signal(SIGTERM,SIG_DFL);
 685                 signal(SIGPIPE,SIG_DFL);
 686         }
 687
 688         /* destroy objects */
 689         debug_prefix = "free";
 690
 691         while(port_first)
 692         {
 693                 debug_count++;
 694                 delete port_first;
 695         }
 696         while(epoint_first)
 697         {
 698                 debug_count++;
 699                 delete epoint_first;
 700         }
 701         epoint_first = NULL;
 702         debug_count++;
 703         join_free();
 704
 705         /* free interfaces */
 706         if (interface_first)
 707                 free_interfaces(interface_first);
 708         interface_first = NULL;
 709
 710         /* close isdn ports */
 711         mISDNport_close_all();
 712
 713         /* flush messages */
 714         debug_count++;
 715         i = 0;
 716         while ((message = message_get()))
 717         {
 718                 i++;
 719                 message_free(message);
 720         }
 721         if (i)
 722         {
 723                 PDEBUG(DEBUG_MSG, "freed %d pending messages\n", i);
 724         }
 725
 726         /* free tones */
 727         if (toneset_first)
 728                 free_tones();
 729
 730         /* free admin socket */
 731         admin_cleanup();
 732
 733         /* close lock */
 734         if (created_lock)
 735                 flock(lockfd, LOCK_UN);
 736         if (lockfd >= 0)
 737                 close(lockfd);
 738
 739         /* free rulesets */
 740         if (ruleset_first)
 741                 ruleset_free(ruleset_first);
 742         ruleset_first = NULL;
 743
 744         /* free mutex */
 745         if (created_mutexe)
 746                 if (pthread_mutex_destroy(&mutexe))
 747                         fprintf(stderr, "cannot destroy 'PERROR' mutex\n");
 748 //      if (created_mutext)
 749 //              if (pthread_mutex_destroy(&mutext))
 750 //                      fprintf(stderr, "cannot destroy 'trace' mutex\n");
 751         if (created_mutexd)
 752                 if (pthread_mutex_destroy(&mutexd))
 753                         fprintf(stderr, "cannot destroy 'PDEBUG' mutex\n");
 754
 755         /* deinitialize mISDN */
 756         if (created_misdn)
 757                 mISDN_deinitialize();
 758
 759         /* display memory leak */
 760 #define MEMCHECK(a, b) \
 761         if (b) \
 762         { \
 763                 SPRINT(tracetext, a, NAME); \
 764                 start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext); \
 765                 if (ret) add_trace("blocks", NULL, "%d", b); \
 766                 end_trace(); \
 767                 printf("\n******************************\n\007"); \
 768                 printf("\nERROR: %d %s\n", b, a); \
 769                 printf("\n******************************\n"); \
 770                 ret = -1; \
 771         }
 772         MEMCHECK("",memuse)
 773         MEMCHECK("memory block(s) left (port.cpp ...)",pmemuse)
 774         MEMCHECK("memory block(s) left (epoint*.cpp ...)",ememuse)
 775         MEMCHECK("memory block(s) left (join*.cpp)",cmemuse)
 776         MEMCHECK("memory block(s) left (message.c)",mmemuse)
 777         MEMCHECK("memory block(s) left (route.c)",rmemuse)
 778         MEMCHECK("memory block(s) left (args)",amemuse)
 779         MEMCHECK("class(es) left",classuse)
 780         MEMCHECK("file descriptor(s) left",fduse)
 781         MEMCHECK("file handler(s) left",fhuse)
 782
 783         /* unlock LCR process */
 784 //      pthread_mutex_unlock(&mutex_lcr);
 785
 786         /* take me out */
 787         return(ret);
 788 }
 789
 790
 791 #ifdef BUDETECT_DEF
 792 /* special debug function to detect buffer overflow
 793  */
 794 int budetect_stop = 0;
 795 void budetect(const char *file, int line, char *function)
 796 {
 797         if (budetect_stop)
 798                 return;
 799         /* modify this function to detect race-bugs */
 800 #warning DID YOU MODIFY THIS FUNCTION TO DETECT THE BUFFER OVERFLOW BUG?
 801         class Port *port;
 802         class PmISDN *pmisdn;
 803         struct mISDNport *mISDNport = mISDNport_first;
 804         int i, ii;
 805
 806         while(mISDNport)
 807         {
 808                 i = 0;
 809                 ii = mISDNport->b_num;
 810                 while(i < ii)
 811                 {
 812                         if (mISDNport->b_port[i])
 813                         {
 814                                 port = port_first;
 815                                 while(port)
 816                                 {
 817                                         if ((port->p_type&PORT_CLASS_MASK) == PORT_CLASS_ISDN)
 818                                         {
 819                                                 pmisdn = (class PmISDN *)port;
 820                                                 if (pmisdn->p_isdn_crypt_listen)
 821                                                 {
 822                                                         PERROR_RUNTIME("************************************************\n");
 823                                                         PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 824                                                         PERROR_RUNTIME("** p_isdn_crypt_listen = %d\n", pmisdn->p_isdn_crypt_listen);
 825                                                         PERROR_RUNTIME("************************************************\n");
 826                                                         budetect_stop = 1;
 827                                                 }
 828                                         }
 829                                         if (port == mISDNport->b_port[i])
 830                                                 break;
 831                                         port = port->next;
 832                                         if (!port)
 833                                         {
 834                                                 PERROR_RUNTIME("************************************************\n");
 835                                                 PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 836                                                 PERROR_RUNTIME("** b_port not in list.\n");
 837                                                 PERROR_RUNTIME("************************************************\n");
 838                                                 budetect_stop = 1;
 839                                         }
 840                                 }
 841                         }
 842                         i++;
 843                 }
 844                 mISDNport = mISDNport->next;
 845         }
 846
 847 }
 848 #endif
 849