main.c

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** Linux Call Router                                                         **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** Main function                                                             **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "main.h"
  13
  14 MESSAGES
  15
  16 double now_d, last_d;
  17 time_t now;
  18 struct tm *now_tm;
  19 struct timeval now_tv;
  20 struct timezone now_tz;
  21 #define GET_NOW() \
  22         { \
  23                 gettimeofday(&now_tv, &now_tz); \
  24                 now_d = ((double)(now_tv.tv_usec))/1000000 + now_tv.tv_sec; \
  25                 now = now_tv.tv_sec; \
  26                 now_tm = localtime(&now); \
  27         }
  28
  29 FILE *debug_fp = NULL;
  30 int quit=0;
  31
  32 #if 0
  33 struct lcr_fdset lcr_fdset[FD_SETSIZE];
  34 #endif
  35
  36 pthread_mutex_t mutexd; // debug output mutex
  37 pthread_mutex_t mutext; // trace output mutex
  38 pthread_mutex_t mutexe; // error output mutex
  39 //pthread_mutex_t mutex_lcr; // lcr process mutex
  40
  41 int memuse = 0;
  42 int mmemuse = 0;
  43 int cmemuse = 0;
  44 int ememuse = 0;
  45 int pmemuse = 0;
  46 int amemuse = 0;
  47 int rmemuse = 0;
  48 int classuse = 0;
  49 int fduse = 0;
  50 int fhuse = 0;
  51
  52 const char *debug_prefix = NULL;
  53 int debug_count = 0;
  54 int last_debug = 0;
  55 int debug_newline = 1;
  56 int nooutput = 0;
  57
  58 void debug_usleep(int msec, const char *file, int line, int hour, int min, int sec)
  59 {
  60         usleep(msec);
  61 }
  62
  63 void debug(const char *function, int line, const char *prefix, char *buffer)
  64 {
  65         /* if we have a new debug count, we add a mark */
  66         if (last_debug != debug_count) {
  67                 last_debug = debug_count;
  68                 if (!nooutput)
  69                         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);
  70                 if (debug_fp)
  71                         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);
  72         }
  73
  74         if (!nooutput) {
  75                 if (debug_newline)
  76                         printf("\033[32m%06d %s\033[37m%s", debug_count%1000000, prefix?prefix:"", prefix?" ":"");
  77                 if (function)
  78                         printf("(in %s() line %d): %s", function, line, buffer);
  79                 else
  80                         printf("%s", buffer);
  81         }
  82
  83         if (debug_fp) {
  84                 if (debug_newline) {
  85                         if (function)
  86                                 fprintf(debug_fp, "%s%s(in %s() line %d): %s", prefix?prefix:"", prefix?" ":"", function, line, buffer);
  87                         else
  88                                 fprintf(debug_fp, "%s%s: %s", prefix?prefix:"", prefix?" ":"", buffer);
  89                 }
  90         }
  91
  92         debug_newline = 0;
  93         if (buffer[0])
  94                 if (buffer[strlen(buffer)-1] == '\n')
  95                         debug_newline = 1;
  96 }
  97
  98
  99 void _printdebug(const char *function, int line, unsigned int mask, const char *fmt, ...)
 100 {
 101         char buffer[4096];
 102         va_list args;
 103
 104         if (!(options.deb & mask))
 105                 return;
 106         pthread_mutex_lock(&mutexd);
 107
 108         va_start(args,fmt);
 109         VUNPRINT(buffer,sizeof(buffer)-1,fmt,args);
 110         buffer[sizeof(buffer)-1]=0;
 111         va_end(args);
 112
 113         debug(function, line, debug_prefix, buffer);
 114
 115         pthread_mutex_unlock(&mutexd);
 116 }
 117
 118 void _printerror(const char *function, int line, const char *fmt, ...)
 119 {
 120         char buffer[4096];
 121         va_list args;
 122
 123         pthread_mutex_lock(&mutexe);
 124
 125         va_start(args,fmt);
 126         VUNPRINT(buffer,sizeof(buffer)-1,fmt,args);
 127         buffer[sizeof(buffer)-1]=0;
 128         va_end(args);
 129
 130         if (options.deb)
 131                 debug(function, line, "ERROR", buffer);
 132         else { /* only if we do not debug */
 133                 if (function)
 134                         fprintf(stderr, "ERROR (in %s() line %d) %s", function, line, buffer);
 135                 else
 136                         fprintf(stderr, "ERROR %s", buffer);
 137         }
 138
 139         pthread_mutex_unlock(&mutexe);
 140 }
 141
 142
 143 void sighandler(int sigset)
 144 {
 145         struct sched_param schedp;
 146
 147         if (sigset == SIGHUP)
 148                 return;
 149         if (sigset == SIGPIPE)
 150                 return;
 151         if (!quit) {
 152                 quit = sigset;
 153                 /* set scheduler & priority */
 154                 if (options.schedule > 1) {
 155                         memset(&schedp, 0, sizeof(schedp));
 156                         schedp.sched_priority = 0;
 157                         sched_setscheduler(0, SCHED_OTHER, &schedp);
 158                 }
 159                 fprintf(stderr, "LCR: Signal received: %d\n", sigset);
 160                 PDEBUG(DEBUG_LOG, "Signal received: %d\n", sigset);
 161         }
 162 }
 163
 164
 165 /*
 166  * the main
 167  */
 168 int main(int argc, char *argv[])
 169 {
 170         int                     ret = -1;
 171         int                     lockfd = -1; /* file lock */
 172         struct lcr_msg          *message;
 173         class Port              *port;
 174         class Endpoint          *epoint;
 175         class Join              *join;
 176         int                     i;
 177         int                     all_idle;
 178         char                    prefix_string[64];
 179         struct sched_param      schedp;
 180         const char              *debug_prefix = "alloc";
 181         int                     created_mutexd = 0,/* created_mutext = 0,*/ created_mutexe = 0,
 182                                 created_lock = 0, created_signal = 0, created_debug = 0,
 183                                 created_misdn = 0;
 184         int                     idletime = 0, idlecheck = 0;
 185         char                    tracetext[256], lock[128];
 186
 187 #if 0
 188         /* init fdset */
 189         memset(lcr_fdset, 0, sizeof(lcr_fdset));
 190 #endif
 191
 192         /* lock LCR process */
 193 //      pthread_mutex_lock(&mutex_lcr);
 194
 195         /* current time */
 196         GET_NOW();
 197
 198         /* show version */
 199         printf("\n** %s  Version %s\n\n", NAME, VERSION_STRING);
 200
 201         /* show options */
 202         if (argc <= 1) {
 203                 usage:
 204                 printf("\n");
 205                 printf("Usage: lcr (query | start | fork | rules | route)\n");
 206                 printf("query     = Show available isdn ports.\n");
 207                 printf("start     = Run lcr normally, abort with CTRL+C.\n");
 208                 printf("fork      = Do daemon fork and run as background process.\n");
 209                 printf("interface = Get help of available interface syntax.\n");
 210                 printf("rules     = Get help of available routing rule syntax.\n");
 211                 printf("rules [action] = Get individual help for given action.\n");
 212 //              printf("route = Show current routing as it is parsed.\n");
 213                 printf("\n");
 214                 ret = 999;
 215                 goto free;
 216         }
 217
 218         /* init crc */
 219         crc_init();
 220
 221         /* the mutex init */
 222         if (pthread_mutex_init(&mutexd, NULL)) {
 223                 fprintf(stderr, "cannot create 'PDEBUG' mutex\n");
 224                 goto free;
 225         }
 226         created_mutexd = 1;
 227 //      if (pthread_mutex_init(&mutext, NULL)) {
 228 //              fprintf(stderr, "cannot create 'trace' mutex\n");
 229 //              goto free;
 230 //      }
 231 //      created_mutext = 1;
 232         if (pthread_mutex_init(&mutexe, NULL)) {
 233                 fprintf(stderr, "cannot create 'PERROR' mutex\n");
 234                 goto free;
 235         }
 236         created_mutexe = 1;
 237
 238         /* show interface */
 239         if (!(strcasecmp(argv[1],"interface"))) {
 240                 doc_interface();
 241                 ret = 0;
 242                 goto free;
 243         }
 244
 245         /* show rules */
 246         if (!(strcasecmp(argv[1],"rules"))) {
 247                 if (argc <= 2)
 248                         doc_rules(NULL);
 249                 else
 250                         doc_rules(argv[2]);
 251                 ret = 0;
 252                 goto free;
 253         }
 254
 255         /* query available isdn ports */
 256         if (!(strcasecmp(argv[1],"query"))) {
 257                 fprintf(stderr, "-> Using 'misdn_info'\n");
 258                 system("misdn_info");
 259                 ret = 0;
 260                 goto free;
 261         }
 262
 263         /* read options */
 264         if (read_options() == 0) {
 265                 PERROR("%s", options_error);
 266                 goto free;
 267         }
 268
 269         /* init mISDN */
 270         if (mISDN_initialize() < 0)
 271                 goto free;
 272         created_misdn = 1;
 273         created_debug = 1;
 274
 275         /* read ruleset(s) */
 276         if (!(ruleset_first = ruleset_parse()))
 277                 goto free;
 278
 279         /* set pointer to main ruleset */
 280         ruleset_main = getrulesetbyname("main");
 281         if (!ruleset_main) {
 282                 fprintf(stderr, "\n***\n -> Missing 'main' ruleset, causing ALL calls to be disconnected.\n***\n\n");
 283                 PDEBUG(DEBUG_LOG, "Missing 'main' ruleset, causing ALL calls to be disconnected.\n");
 284                 sleep(2);
 285         }
 286
 287 #if 0
 288         /* query available isdn ports */
 289         if (!(strcasecmp(argv[1],"route"))) {
 290                 ruleset_debug(ruleset_first);
 291                 ret = 0;
 292                 goto free;
 293         }
 294 #endif
 295
 296         /* do fork in special cases */
 297         if (!(strcasecmp(argv[1],"fork"))) {
 298                 pid_t pid;
 299                 FILE *pidfile;
 300
 301                 /* do daemon fork */
 302                 pid = fork();
 303
 304                 if (pid < 0) {
 305                         fprintf(stderr, "Cannot fork!\n");
 306                         goto free;
 307                 }
 308                 if (pid != 0) {
 309                         exit(0);
 310                 }
 311                 usleep(200000);
 312                 printf("\n");
 313
 314                 /* do second fork */
 315                 pid = fork();
 316
 317                 if (pid < 0) {
 318                         fprintf(stderr, "Cannot fork!\n");
 319                         goto free;
 320                 }
 321                 if (pid != 0) {
 322                         printf("LCR: Starting daemon.\n");
 323                         exit(0);
 324                 }
 325                 nooutput = 1;
 326
 327                 /* write pid file */
 328                 pidfile = fopen("/var/run/lcr.pid","w");
 329                 if (pidfile) {
 330                         fprintf(pidfile, "%d\n", getpid());
 331                         fclose(pidfile);
 332                 }
 333         } else
 334         /* if not start */
 335         if (!!strcasecmp(argv[1],"start")) {
 336                 goto usage;
 337         }
 338
 339         /* create lock and lock! */
 340         SPRINT(lock, "%s/lcr.lock", options.lock);
 341         if ((lockfd = open(lock, O_CREAT | O_WRONLY, S_IWUSR)) < 0) {
 342                 fprintf(stderr, "Cannot create lock file: %s\n", lock);
 343                 fprintf(stderr, "Check options.conf to change to path with permissions for you.\n");
 344                 goto free;
 345         }
 346         if (flock(lockfd, LOCK_EX|LOCK_NB) < 0) {
 347                 if (errno == EWOULDBLOCK)
 348                         fprintf(stderr, "LCR: Another LCR process is running. Please kill the other one.\n");
 349                 else    fprintf(stderr, "Locking process failed: errno=%d\n", errno);
 350                 goto free;
 351         }
 352         created_lock = 1;
 353
 354         /* initialize admin socket */
 355         if (admin_init()) {
 356                 fprintf(stderr, "Unable to initialize admin socket.\n");
 357                 goto free;
 358         }
 359
 360         /* generate alaw / ulaw tables */
 361         generate_tables(options.law);
 362
 363         /* load tones (if requested) */
 364         if (fetch_tones() == 0) {
 365                 fprintf(stderr, "Unable to fetch tones into memory.\n");
 366                 goto free;
 367         }
 368
 369 #ifdef WITH_GSM
 370         /* handle gsm */
 371         if (options.gsm && gsm_init()) {
 372                 fprintf(stderr, "GSM initialization failed.\n");
 373                 goto free;
 374         }
 375 #else
 376         if (options.gsm) {
 377                 fprintf(stderr, "GSM is enabled, but not compiled. Use --with-gsm while configure!\n");
 378                 goto free;
 379         }
 380 #endif
 381
 382         /* read interfaces and open ports */
 383         if (!read_interfaces()) {
 384                 PERROR_RUNTIME("No interfaces specified or failed to parse interface.conf.\n");
 385                 fprintf(stderr, "No interfaces specified or failed to parse interface.conf.\n");
 386                 goto free;
 387         }
 388         relink_interfaces();
 389         interface_first = interface_newlist;
 390         interface_newlist = NULL;
 391
 392         /* locking memory paging */
 393         i = 0;
 394         while(i < 10) {
 395                 if (mlockall(MCL_CURRENT | MCL_FUTURE) >= 0)
 396                         break;
 397                 usleep(200000);
 398                 i++;
 399         }
 400         if (i == 10) {
 401                 switch(errno) {
 402                         case ENOMEM:
 403                         fprintf(stderr, "Warning: Not enough memory to lock paging.\n");
 404                         break;
 405                         case EPERM:
 406                         fprintf(stderr, "Warning: No permission to lock paging.\n");
 407                         break;
 408                         case EFAULT:
 409                         fprintf(stderr, "Warning: 'Bad address' while locking paging.\n");
 410                         break;
 411                         default:
 412                         fprintf(stderr, "Warning: Unknown error %d while locking paging.\n", errno);
 413                 }
 414         }
 415
 416         /* set real time scheduler & priority */
 417         if (options.schedule > 1) {
 418                 memset(&schedp, 0, sizeof(schedp));
 419                 schedp.sched_priority = options.schedule;
 420                 ret = sched_setscheduler(0, SCHED_RR, &schedp);
 421                 if (ret < 0) {
 422                         PERROR("Scheduling failed with given priority %d (errno = %d).\nCheck options.conf 'schedule', exitting...\n", options.schedule, errno);
 423                         goto free;
 424                 }
 425         }
 426
 427         /* signal handlers */
 428         signal(SIGINT,sighandler);
 429         signal(SIGHUP,sighandler);
 430         signal(SIGTERM,sighandler);
 431         signal(SIGPIPE,sighandler);
 432         created_signal = 1;
 433
 434         /*** main loop ***/
 435         SPRINT(tracetext, "%s %s started, waiting for calls...", NAME, VERSION_STRING);
 436         start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext);
 437         printf("%s\n", tracetext);
 438         end_trace();
 439         GET_NOW();
 440         quit = 0;
 441         while(!quit) {
 442
 443                 last_d = now_d;
 444                 GET_NOW();
 445                 if (now_d-last_d > 1.0) {
 446                         PERROR("LCR was stalling %d.%d seconds\n", ((int)((now_d-last_d)*10.0))/10, (int)((now_d-last_d)*10.0));
 447                 }
 448                 /* all loops must be counted from the beginning since nodes might get freed during handler */
 449                 all_idle = 1;
 450
 451 //#warning debugging usleep crash
 452 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 453
 454                 /* handle mISDN messages from kernel */
 455                 debug_prefix = "ISDN";
 456                 if (mISDN_handler())
 457                         all_idle = 0;
 458 //#warning debugging usleep crash
 459 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 460
 461 BUDETECT
 462
 463                 /* loop through all port ports and call their handler */
 464                 port_again:
 465                 port = port_first;
 466                 while(port) {
 467                         debug_prefix = port->p_name;
 468                         debug_count++;
 469                         ret = port->handler();
 470                         if (ret)
 471                                 all_idle = 0;
 472                         if (ret < 0) /* port has been destroyed */
 473                                 goto port_again;
 474                         port = port->next;
 475                 }
 476
 477                 /* loop through all epoint and call their handler */
 478                 epoint_again:
 479                 epoint = epoint_first;
 480                 while(epoint) {
 481                         debug_prefix = prefix_string;
 482                         SPRINT(prefix_string, "ep%ld", epoint->ep_serial);
 483                         debug_count++;
 484                         ret = epoint->handler();
 485                         if (ret)
 486                                 all_idle = 0;
 487                         if (ret < 0) /* epoint has been destroyed */
 488                                 goto epoint_again;
 489                         epoint = epoint->next;
 490                 }
 491
 492                 /* loop through all joins and call their handler */
 493                 join_again:
 494                 join = join_first;
 495                 while(join) {
 496                         debug_prefix = "join";
 497                         debug_count++;
 498                         ret = join->handler();
 499                         if (ret)
 500                                 all_idle = 0;
 501                         if (ret < 0) /* join has been destroyed */
 502                                 goto join_again;
 503                         join = join->next;
 504                 }
 505
 506                 debug_prefix = 0;
 507
 508                 /* process any message */
 509                 debug_count++;
 510                 debug_prefix = "message";
 511                 while ((message = message_get())) {
 512                         all_idle = 0;
 513                         switch(message->flow) {
 514                                 case PORT_TO_EPOINT:
 515                                 debug_prefix = "msg port->epoint";
 516                                 epoint = find_epoint_id(message->id_to);
 517                                 if (epoint) {
 518                                         if (epoint->ep_app) {
 519                                                 epoint->ep_app->ea_message_port(message->id_from, message->type, &message->param);
 520                                         } else {
 521                                                 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);
 522                                         }
 523                                 } else {
 524                                         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);
 525                                 }
 526                                 break;
 527
 528                                 case EPOINT_TO_JOIN:
 529                                 debug_prefix = "msg epoint->join";
 530                                 join = find_join_id(message->id_to);
 531                                 if (join) {
 532                                         join->message_epoint(message->id_from, message->type, &message->param);
 533                                 } else {
 534                                         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);
 535                                 }
 536                                 break;
 537
 538                                 case JOIN_TO_EPOINT:
 539                                 debug_prefix = "msg join->epoint";
 540                                 epoint = find_epoint_id(message->id_to);
 541                                 if (epoint) {
 542                                         if (epoint->ep_app) {
 543                                                 epoint->ep_app->ea_message_join(message->id_from, message->type, &message->param);
 544                                         } else {
 545                                                 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);
 546                                         }
 547                                 } else {
 548                                         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);
 549                                 }
 550                                 break;
 551
 552                                 case EPOINT_TO_PORT:
 553                                 debug_prefix = "msg epoint->port";
 554                                 port = find_port_id(message->id_to);
 555                                 if (port) {
 556                                         port->message_epoint(message->id_from, message->type, &message->param);
 557 BUDETECT
 558                                 } else {
 559                                         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);
 560                                 }
 561                                 break;
 562
 563                                 default:
 564                                 PERROR("Message flow %d unknown.\n", message->flow);
 565                         }
 566                         message_free(message);
 567                         debug_count++;
 568                         debug_prefix = "message";
 569                 }
 570 BUDETECT
 571
 572                 /* handle socket */
 573                 if (admin_handle())
 574                         all_idle = 0;
 575 BUDETECT
 576
 577 #ifdef WITH_GSM
 578                 /* handle gsm */
 579                 if (options.gsm)
 580                         while(handle_gsm())
 581                                 all_idle = 0;
 582 #endif
 583
 584 BUDETECT
 585
 586 #if 0
 587                 /* check for child to exit (eliminate zombies) */
 588                 if (waitpid(-1, NULL, WNOHANG) > 0) {
 589                         PDEBUG(DEBUG_EPOINT, "a child process (created by endpoint) has exitted.\n");
 590                         all_idle = 0;
 591                 }
 592 #endif
 593 //#warning debugging usleep crash
 594 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 595
 596                 /* do idle checking */
 597                 if (idlecheck != now) {
 598                         PDEBUG(DEBUG_IDLETIME, "Idle time : %d%%\n", idletime/10000);
 599                         idletime = 0;
 600                         idlecheck = now;
 601                 }
 602
 603                 /* did we do nothing? so we wait to give time to other processes */
 604                 if (all_idle) {
 605 //                      pthread_mutex_unlock(&mutex_lcr); // unlock LCR
 606                         debug_usleep(4000, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 607 //                      pthread_mutex_lock(&mutex_lcr); // lock LCR
 608                         idletime += 4000;
 609                 }
 610         }
 611         SPRINT(tracetext, "%s terminated", NAME);
 612         printf("%s\n", tracetext);
 613         start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext);
 614         if (quit)
 615                 add_trace((char *)"signal", NULL, "%d", quit);
 616         end_trace();
 617         ret=0;
 618
 619         /* free all */
 620 free:
 621
 622
 623         /* set scheduler & priority
 624          */
 625         if (options.schedule > 1) {
 626                 memset(&schedp, 0, sizeof(schedp));
 627                 schedp.sched_priority = options.schedule;
 628                 sched_setscheduler(0, SCHED_OTHER, &schedp);
 629         }
 630         /* reset signals */
 631         if (created_signal) {
 632                 signal(SIGINT,SIG_DFL);
 633                 signal(SIGHUP,SIG_DFL);
 634                 signal(SIGTERM,SIG_DFL);
 635                 signal(SIGPIPE,SIG_DFL);
 636         }
 637
 638         /* destroy objects */
 639         debug_prefix = "free";
 640
 641         while(port_first) {
 642                 debug_count++;
 643                 delete port_first;
 644         }
 645         while(epoint_first) {
 646                 debug_count++;
 647                 delete epoint_first;
 648         }
 649         epoint_first = NULL;
 650         debug_count++;
 651         join_free();
 652
 653         /* free interfaces */
 654         if (interface_first)
 655                 free_interfaces(interface_first);
 656         interface_first = NULL;
 657
 658         /* close isdn ports */
 659         mISDNport_close_all();
 660
 661         /* flush messages */
 662         debug_count++;
 663         i = 0;
 664         while ((message = message_get())) {
 665                 i++;
 666                 message_free(message);
 667         }
 668         if (i) {
 669                 PDEBUG(DEBUG_MSG, "freed %d pending messages\n", i);
 670         }
 671
 672         /* free tones */
 673         if (toneset_first)
 674                 free_tones();
 675
 676         /* free admin socket */
 677         admin_cleanup();
 678
 679         /* close lock */
 680         if (created_lock)
 681                 flock(lockfd, LOCK_UN);
 682         if (lockfd >= 0) {
 683                 chmod(lock, 0700);
 684                 unlink(lock);
 685                 close(lockfd);
 686         }
 687
 688         /* free rulesets */
 689         if (ruleset_first)
 690                 ruleset_free(ruleset_first);
 691         ruleset_first = NULL;
 692
 693         /* free mutex */
 694         if (created_mutexe)
 695                 if (pthread_mutex_destroy(&mutexe))
 696                         fprintf(stderr, "cannot destroy 'PERROR' mutex\n");
 697 //      if (created_mutext)
 698 //              if (pthread_mutex_destroy(&mutext))
 699 //                      fprintf(stderr, "cannot destroy 'trace' mutex\n");
 700         if (created_mutexd)
 701                 if (pthread_mutex_destroy(&mutexd))
 702                         fprintf(stderr, "cannot destroy 'PDEBUG' mutex\n");
 703
 704         /* deinitialize mISDN */
 705         if (created_misdn)
 706                 mISDN_deinitialize();
 707
 708 #ifdef WITH_GSM
 709         /* free gsm */
 710         if (options.gsm)
 711                 gsm_exit(0);
 712 #endif
 713
 714         /* display memory leak */
 715 #define MEMCHECK(a, b) \
 716         if (b) { \
 717                 SPRINT(tracetext, a, NAME); \
 718                 start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext); \
 719                 if (ret) add_trace("blocks", NULL, "%d", b); \
 720                 end_trace(); \
 721                 printf("\n******************************\n\007"); \
 722                 printf("\nERROR: %d %s\n", b, a); \
 723                 printf("\n******************************\n"); \
 724                 ret = -1; \
 725         }
 726         MEMCHECK("",memuse)
 727         MEMCHECK("memory block(s) left (port.cpp ...)",pmemuse)
 728         MEMCHECK("memory block(s) left (epoint*.cpp ...)",ememuse)
 729         MEMCHECK("memory block(s) left (join*.cpp)",cmemuse)
 730         MEMCHECK("memory block(s) left (message.c)",mmemuse)
 731         MEMCHECK("memory block(s) left (route.c)",rmemuse)
 732         MEMCHECK("memory block(s) left (args)",amemuse)
 733         MEMCHECK("class(es) left",classuse)
 734         MEMCHECK("file descriptor(s) left",fduse)
 735         MEMCHECK("file handler(s) left",fhuse)
 736
 737         /* unlock LCR process */
 738 //      pthread_mutex_unlock(&mutex_lcr);
 739
 740         /* take me out */
 741         return(ret);
 742 }
 743
 744
 745 #ifdef BUDETECT_DEF
 746 /* special debug function to detect buffer overflow
 747  */
 748 int budetect_stop = 0;
 749 void budetect(const char *file, int line, const char *function)
 750 {
 751         if (budetect_stop)
 752                 return;
 753         /* modify this function to detect race-bugs */
 754 #warning DID YOU MODIFY THIS FUNCTION TO DETECT THE BUFFER OVERFLOW BUG?
 755         class Port *port;
 756         class PmISDN *pmisdn;
 757         struct mISDNport *mISDNport = mISDNport_first;
 758         int i, ii;
 759
 760         while(mISDNport) {
 761                 i = 0;
 762                 ii = mISDNport->b_num;
 763                 while(i < ii) {
 764                         if (mISDNport->b_port[i]) {
 765                                 port = port_first;
 766                                 while(port) {
 767                                         if ((port->p_type&PORT_CLASS_MASK) == PORT_CLASS_ISDN) {
 768                                                 pmisdn = (class PmISDN *)port;
 769                                                 if (pmisdn->p_isdn_crypt_listen) {
 770                                                         PERROR_RUNTIME("************************************************\n");
 771                                                         PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 772                                                         PERROR_RUNTIME("** p_isdn_crypt_listen = %d\n", pmisdn->p_isdn_crypt_listen);
 773                                                         PERROR_RUNTIME("************************************************\n");
 774                                                         budetect_stop = 1;
 775                                                 }
 776                                         }
 777                                         if (port == mISDNport->b_port[i])
 778                                                 break;
 779                                         port = port->next;
 780                                         if (!port) {
 781                                                 PERROR_RUNTIME("************************************************\n");
 782                                                 PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 783                                                 PERROR_RUNTIME("** b_port not in list.\n");
 784                                                 PERROR_RUNTIME("************************************************\n");
 785                                                 budetect_stop = 1;
 786                                         }
 787                                 }
 788                         }
 789                         i++;
 790                 }
 791                 mISDNport = mISDNport->next;
 792         }
 793
 794 }
 795 #endif
 796