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 #ifdef WITH_SS5
 364         /* init ss5 sine tables */
 365         ss5_sine_generate();
 366         ss5_test_decode();
 367 #endif
 368
 369         /* load tones (if requested) */
 370         if (fetch_tones() == 0) {
 371                 fprintf(stderr, "Unable to fetch tones into memory.\n");
 372                 goto free;
 373         }
 374
 375 #ifdef WITH_GSM
 376         /* handle gsm */
 377         if (options.gsm && gsm_init()) {
 378                 fprintf(stderr, "GSM initialization failed.\n");
 379                 goto free;
 380         }
 381 #else
 382         if (options.gsm) {
 383                 fprintf(stderr, "GSM is enabled, but not compiled. Use --with-gsm while configure!\n");
 384                 goto free;
 385         }
 386 #endif
 387
 388         /* read interfaces and open ports */
 389         if (!read_interfaces()) {
 390                 PERROR_RUNTIME("No interfaces specified or failed to parse interface.conf.\n");
 391                 fprintf(stderr, "No interfaces specified or failed to parse interface.conf.\n");
 392                 goto free;
 393         }
 394         relink_interfaces();
 395         interface_first = interface_newlist;
 396         interface_newlist = NULL;
 397
 398         /* locking memory paging */
 399         i = 0;
 400         while(i < 10) {
 401                 if (mlockall(MCL_CURRENT | MCL_FUTURE) >= 0)
 402                         break;
 403                 usleep(200000);
 404                 i++;
 405         }
 406         if (i == 10) {
 407                 switch(errno) {
 408                         case ENOMEM:
 409                         fprintf(stderr, "Warning: Not enough memory to lock paging.\n");
 410                         break;
 411                         case EPERM:
 412                         fprintf(stderr, "Warning: No permission to lock paging.\n");
 413                         break;
 414                         case EFAULT:
 415                         fprintf(stderr, "Warning: 'Bad address' while locking paging.\n");
 416                         break;
 417                         default:
 418                         fprintf(stderr, "Warning: Unknown error %d while locking paging.\n", errno);
 419                 }
 420         }
 421
 422         /* set real time scheduler & priority */
 423         if (options.schedule > 1) {
 424                 memset(&schedp, 0, sizeof(schedp));
 425                 schedp.sched_priority = options.schedule;
 426                 ret = sched_setscheduler(0, SCHED_RR, &schedp);
 427                 if (ret < 0) {
 428                         PERROR("Scheduling failed with given priority %d (errno = %d).\nCheck options.conf 'schedule', exitting...\n", options.schedule, errno);
 429                         goto free;
 430                 }
 431         }
 432
 433         /* signal handlers */
 434         signal(SIGINT,sighandler);
 435         signal(SIGHUP,sighandler);
 436         signal(SIGTERM,sighandler);
 437         signal(SIGPIPE,sighandler);
 438         created_signal = 1;
 439
 440         /*** main loop ***/
 441         SPRINT(tracetext, "%s %s started, waiting for calls...", NAME, VERSION_STRING);
 442         start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext);
 443         printf("%s\n", tracetext);
 444         end_trace();
 445         GET_NOW();
 446         quit = 0;
 447         while(!quit) {
 448
 449                 last_d = now_d;
 450                 GET_NOW();
 451                 if (now_d-last_d > 1.0) {
 452                         PERROR("LCR was stalling %d.%d seconds\n", ((int)((now_d-last_d)*10.0))/10, (int)((now_d-last_d)*10.0));
 453                 }
 454                 /* all loops must be counted from the beginning since nodes might get freed during handler */
 455                 all_idle = 1;
 456
 457 //#warning debugging usleep crash
 458 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 459
 460                 /* handle mISDN messages from kernel */
 461                 debug_prefix = "ISDN";
 462                 if (mISDN_handler())
 463                         all_idle = 0;
 464 //#warning debugging usleep crash
 465 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 466
 467 BUDETECT
 468
 469                 /* loop through all port ports and call their handler */
 470                 port_again:
 471                 port = port_first;
 472                 while(port) {
 473                         debug_prefix = port->p_name;
 474                         debug_count++;
 475                         ret = port->handler();
 476                         if (ret)
 477                                 all_idle = 0;
 478                         if (ret < 0) /* port has been destroyed */
 479                                 goto port_again;
 480                         port = port->next;
 481                 }
 482
 483                 /* loop through all epoint and call their handler */
 484                 epoint_again:
 485                 epoint = epoint_first;
 486                 while(epoint) {
 487                         debug_prefix = prefix_string;
 488                         SPRINT(prefix_string, "ep%ld", epoint->ep_serial);
 489                         debug_count++;
 490                         ret = epoint->handler();
 491                         if (ret)
 492                                 all_idle = 0;
 493                         if (ret < 0) /* epoint has been destroyed */
 494                                 goto epoint_again;
 495                         epoint = epoint->next;
 496                 }
 497
 498                 /* loop through all joins and call their handler */
 499                 join_again:
 500                 join = join_first;
 501                 while(join) {
 502                         debug_prefix = "join";
 503                         debug_count++;
 504                         ret = join->handler();
 505                         if (ret)
 506                                 all_idle = 0;
 507                         if (ret < 0) /* join has been destroyed */
 508                                 goto join_again;
 509                         join = join->next;
 510                 }
 511
 512                 debug_prefix = 0;
 513
 514                 /* process any message */
 515                 debug_count++;
 516                 debug_prefix = "message";
 517                 while ((message = message_get())) {
 518                         all_idle = 0;
 519                         switch(message->flow) {
 520                                 case PORT_TO_EPOINT:
 521                                 debug_prefix = "msg port->epoint";
 522                                 epoint = find_epoint_id(message->id_to);
 523                                 if (epoint) {
 524                                         if (epoint->ep_app) {
 525                                                 epoint->ep_app->ea_message_port(message->id_from, message->type, &message->param);
 526                                         } else {
 527                                                 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);
 528                                         }
 529                                 } else {
 530                                         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);
 531                                 }
 532                                 break;
 533
 534                                 case EPOINT_TO_JOIN:
 535                                 debug_prefix = "msg epoint->join";
 536                                 join = find_join_id(message->id_to);
 537                                 if (join) {
 538                                         join->message_epoint(message->id_from, message->type, &message->param);
 539                                 } else {
 540                                         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);
 541                                 }
 542                                 break;
 543
 544                                 case JOIN_TO_EPOINT:
 545                                 debug_prefix = "msg join->epoint";
 546                                 epoint = find_epoint_id(message->id_to);
 547                                 if (epoint) {
 548                                         if (epoint->ep_app) {
 549                                                 epoint->ep_app->ea_message_join(message->id_from, message->type, &message->param);
 550                                         } else {
 551                                                 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);
 552                                         }
 553                                 } else {
 554                                         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);
 555                                 }
 556                                 break;
 557
 558                                 case EPOINT_TO_PORT:
 559                                 debug_prefix = "msg epoint->port";
 560                                 port = find_port_id(message->id_to);
 561                                 if (port) {
 562                                         port->message_epoint(message->id_from, message->type, &message->param);
 563 BUDETECT
 564                                 } else {
 565                                         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);
 566                                 }
 567                                 break;
 568
 569                                 default:
 570                                 PERROR("Message flow %d unknown.\n", message->flow);
 571                         }
 572                         message_free(message);
 573                         debug_count++;
 574                         debug_prefix = "message";
 575                 }
 576 BUDETECT
 577
 578                 /* handle socket */
 579                 if (admin_handle())
 580                         all_idle = 0;
 581 BUDETECT
 582
 583 #ifdef WITH_GSM
 584                 /* handle gsm */
 585                 if (options.gsm)
 586                         while(handle_gsm())
 587                                 all_idle = 0;
 588 #endif
 589
 590 BUDETECT
 591
 592 #if 0
 593                 /* check for child to exit (eliminate zombies) */
 594                 if (waitpid(-1, NULL, WNOHANG) > 0) {
 595                         PDEBUG(DEBUG_EPOINT, "a child process (created by endpoint) has exitted.\n");
 596                         all_idle = 0;
 597                 }
 598 #endif
 599 //#warning debugging usleep crash
 600 //              debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 601
 602                 /* do idle checking */
 603                 if (idlecheck != now) {
 604                         PDEBUG(DEBUG_IDLETIME, "Idle time : %d%%\n", idletime/10000);
 605                         idletime = 0;
 606                         idlecheck = now;
 607                 }
 608
 609                 /* did we do nothing? so we wait to give time to other processes */
 610                 if (all_idle) {
 611 //                      pthread_mutex_unlock(&mutex_lcr); // unlock LCR
 612                         debug_usleep(4000, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
 613 //                      pthread_mutex_lock(&mutex_lcr); // lock LCR
 614                         idletime += 4000;
 615                 }
 616         }
 617         SPRINT(tracetext, "%s terminated", NAME);
 618         printf("%s\n", tracetext);
 619         start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext);
 620         if (quit)
 621                 add_trace((char *)"signal", NULL, "%d", quit);
 622         end_trace();
 623         ret=0;
 624
 625         /* free all */
 626 free:
 627
 628
 629         /* set scheduler & priority
 630          */
 631         if (options.schedule > 1) {
 632                 memset(&schedp, 0, sizeof(schedp));
 633                 schedp.sched_priority = options.schedule;
 634                 sched_setscheduler(0, SCHED_OTHER, &schedp);
 635         }
 636         /* reset signals */
 637         if (created_signal) {
 638                 signal(SIGINT,SIG_DFL);
 639                 signal(SIGHUP,SIG_DFL);
 640                 signal(SIGTERM,SIG_DFL);
 641                 signal(SIGPIPE,SIG_DFL);
 642         }
 643
 644         /* destroy objects */
 645         debug_prefix = "free";
 646
 647         while(port_first) {
 648                 debug_count++;
 649                 delete port_first;
 650         }
 651         while(epoint_first) {
 652                 debug_count++;
 653                 delete epoint_first;
 654         }
 655         epoint_first = NULL;
 656         debug_count++;
 657         join_free();
 658
 659         /* free interfaces */
 660         if (interface_first)
 661                 free_interfaces(interface_first);
 662         interface_first = NULL;
 663
 664         /* close isdn ports */
 665         mISDNport_close_all();
 666
 667         /* flush messages */
 668         debug_count++;
 669         i = 0;
 670         while ((message = message_get())) {
 671                 i++;
 672                 message_free(message);
 673         }
 674         if (i) {
 675                 PDEBUG(DEBUG_MSG, "freed %d pending messages\n", i);
 676         }
 677
 678         /* free tones */
 679         if (toneset_first)
 680                 free_tones();
 681
 682         /* free admin socket */
 683         admin_cleanup();
 684
 685         /* close lock */
 686         if (created_lock)
 687                 flock(lockfd, LOCK_UN);
 688         if (lockfd >= 0) {
 689                 chmod(lock, 0700);
 690                 unlink(lock);
 691                 close(lockfd);
 692         }
 693
 694         /* free rulesets */
 695         if (ruleset_first)
 696                 ruleset_free(ruleset_first);
 697         ruleset_first = NULL;
 698
 699         /* free mutex */
 700         if (created_mutexe)
 701                 if (pthread_mutex_destroy(&mutexe))
 702                         fprintf(stderr, "cannot destroy 'PERROR' mutex\n");
 703 //      if (created_mutext)
 704 //              if (pthread_mutex_destroy(&mutext))
 705 //                      fprintf(stderr, "cannot destroy 'trace' mutex\n");
 706         if (created_mutexd)
 707                 if (pthread_mutex_destroy(&mutexd))
 708                         fprintf(stderr, "cannot destroy 'PDEBUG' mutex\n");
 709
 710         /* deinitialize mISDN */
 711         if (created_misdn)
 712                 mISDN_deinitialize();
 713
 714 #ifdef WITH_GSM
 715         /* free gsm */
 716         if (options.gsm)
 717                 gsm_exit(0);
 718 #endif
 719
 720         /* display memory leak */
 721 #define MEMCHECK(a, b) \
 722         if (b) { \
 723                 SPRINT(tracetext, a, NAME); \
 724                 start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext); \
 725                 if (ret) add_trace("blocks", NULL, "%d", b); \
 726                 end_trace(); \
 727                 printf("\n******************************\n\007"); \
 728                 printf("\nERROR: %d %s\n", b, a); \
 729                 printf("\n******************************\n"); \
 730                 ret = -1; \
 731         }
 732         MEMCHECK("",memuse)
 733         MEMCHECK("memory block(s) left (port.cpp ...)",pmemuse)
 734         MEMCHECK("memory block(s) left (epoint*.cpp ...)",ememuse)
 735         MEMCHECK("memory block(s) left (join*.cpp)",cmemuse)
 736         MEMCHECK("memory block(s) left (message.c)",mmemuse)
 737         MEMCHECK("memory block(s) left (route.c)",rmemuse)
 738         MEMCHECK("memory block(s) left (args)",amemuse)
 739         MEMCHECK("class(es) left",classuse)
 740         MEMCHECK("file descriptor(s) left",fduse)
 741         MEMCHECK("file handler(s) left",fhuse)
 742
 743         /* unlock LCR process */
 744 //      pthread_mutex_unlock(&mutex_lcr);
 745
 746         /* take me out */
 747         return(ret);
 748 }
 749
 750
 751 #ifdef BUDETECT_DEF
 752 /* special debug function to detect buffer overflow
 753  */
 754 int budetect_stop = 0;
 755 void budetect(const char *file, int line, const char *function)
 756 {
 757         if (budetect_stop)
 758                 return;
 759         /* modify this function to detect race-bugs */
 760 #warning DID YOU MODIFY THIS FUNCTION TO DETECT THE BUFFER OVERFLOW BUG?
 761         class Port *port;
 762         class PmISDN *pmisdn;
 763         struct mISDNport *mISDNport = mISDNport_first;
 764         int i, ii;
 765
 766         while(mISDNport) {
 767                 i = 0;
 768                 ii = mISDNport->b_num;
 769                 while(i < ii) {
 770                         if (mISDNport->b_port[i]) {
 771                                 port = port_first;
 772                                 while(port) {
 773                                         if ((port->p_type&PORT_CLASS_MASK) == PORT_CLASS_ISDN) {
 774                                                 pmisdn = (class PmISDN *)port;
 775                                                 if (pmisdn->p_isdn_crypt_listen) {
 776                                                         PERROR_RUNTIME("************************************************\n");
 777                                                         PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 778                                                         PERROR_RUNTIME("** p_isdn_crypt_listen = %d\n", pmisdn->p_isdn_crypt_listen);
 779                                                         PERROR_RUNTIME("************************************************\n");
 780                                                         budetect_stop = 1;
 781                                                 }
 782                                         }
 783                                         if (port == mISDNport->b_port[i])
 784                                                 break;
 785                                         port = port->next;
 786                                         if (!port) {
 787                                                 PERROR_RUNTIME("************************************************\n");
 788                                                 PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
 789                                                 PERROR_RUNTIME("** b_port not in list.\n");
 790                                                 PERROR_RUNTIME("************************************************\n");
 791                                                 budetect_stop = 1;
 792                                         }
 793                                 }
 794                         }
 795                         i++;
 796                 }
 797                 mISDNport = mISDNport->next;
 798         }
 799
 800 }
 801 #endif
 802