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