source/smbd/server.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    Main SMB server routines
   5    Copyright (C) Andrew Tridgell 1992-1998
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23
  24 pstring servicesf = CONFIGFILE;
  25 extern fstring global_myworkgroup;
  26 extern pstring global_myname;
  27
  28 int am_parent = 1;
  29
  30 /* the last message the was processed */
  31 int last_message = -1;
  32
  33 /* a useful macro to debug the last message processed */
  34 #define LAST_MESSAGE() smb_fn_name(last_message)
  35
  36 extern pstring user_socket_options;
  37
  38 #ifdef WITH_DFS
  39 extern int dcelogin_atmost_once;
  40 #endif /* WITH_DFS */
  41
  42 extern fstring remote_machine;
  43
  44 /* really we should have a top level context structure that has the
  45    client file descriptor as an element. That would require a major rewrite :(
  46
  47    the following 2 functions are an alternative - they make the file
  48    descriptor private to smbd
  49  */
  50 static int server_fd = -1;
  51
  52 int smbd_server_fd(void)
  53 {
  54         return server_fd;
  55 }
  56
  57 void smbd_set_server_fd(int fd)
  58 {
  59         server_fd = fd;
  60         client_setfd(fd);
  61 }
  62
  63 /****************************************************************************
  64  Terminate signal.
  65 ****************************************************************************/
  66
  67 SIG_ATOMIC_T got_sig_term;
  68
  69 static void sig_term(void)
  70 {
  71         got_sig_term = 1;
  72         sys_select_signal();
  73 }
  74
  75 /****************************************************************************
  76  Catch a sighup.
  77 ****************************************************************************/
  78
  79 SIG_ATOMIC_T reload_after_sighup;
  80
  81 static void sig_hup(int sig)
  82 {
  83         reload_after_sighup = 1;
  84         sys_select_signal();
  85 }
  86
  87 /****************************************************************************
  88   Send a SIGTERM to our process group.
  89 *****************************************************************************/
  90
  91 static void  killkids(void)
  92 {
  93         if(am_parent)
  94                 kill(0,SIGTERM);
  95 }
  96
  97 /****************************************************************************
  98  Open the socket communication - inetd.
  99 ****************************************************************************/
 100
 101 static BOOL open_sockets_inetd(void)
 102 {
 103         /* Started from inetd. fd 0 is the socket. */
 104         /* We will abort gracefully when the client or remote system
 105            goes away */
 106         smbd_set_server_fd(dup(0));
 107
 108         /* close our standard file descriptors */
 109         close_low_fds();
 110
 111         set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
 112         set_socket_options(smbd_server_fd(),user_socket_options);
 113
 114         return True;
 115 }
 116
 117 /****************************************************************************
 118  Open the socket communication.
 119 ****************************************************************************/
 120
 121 static BOOL open_sockets(BOOL is_daemon,BOOL interactive, int port)
 122 {
 123         int num_interfaces = iface_count();
 124         int fd_listenset[FD_SETSIZE];
 125         fd_set listen_set;
 126         int s;
 127         int i;
 128
 129         if (!is_daemon) {
 130                 return open_sockets_inetd();
 131         }
 132
 133
 134 #ifdef HAVE_ATEXIT
 135         {
 136                 static int atexit_set;
 137                 if(atexit_set == 0) {
 138                         atexit_set=1;
 139                         atexit(killkids);
 140                 }
 141         }
 142 #endif
 143
 144         /* Stop zombies */
 145         CatchChild();
 146
 147
 148         FD_ZERO(&listen_set);
 149
 150         if(lp_interfaces() && lp_bind_interfaces_only()) {
 151                 /* We have been given an interfaces line, and been
 152                    told to only bind to those interfaces. Create a
 153                    socket per interface and bind to only these.
 154                 */
 155
 156                 if(num_interfaces > FD_SETSIZE) {
 157                         DEBUG(0,("open_sockets: Too many interfaces specified to bind to. Number was %d \
 158 max can be %d\n",
 159                                  num_interfaces, FD_SETSIZE));
 160                         return False;
 161                 }
 162
 163                 /* Now open a listen socket for each of the
 164                    interfaces. */
 165                 for(i = 0; i < num_interfaces; i++) {
 166                         struct in_addr *ifip = iface_n_ip(i);
 167
 168                         if(ifip == NULL) {
 169                                 DEBUG(0,("open_sockets: interface %d has NULL IP address !\n", i));
 170                                 continue;
 171                         }
 172                         s = fd_listenset[i] = open_socket_in(SOCK_STREAM, port, 0, ifip->s_addr, True);
 173                         if(s == -1)
 174                                 return False;
 175
 176                         /* ready to listen */
 177                         set_socket_options(s,"SO_KEEPALIVE");
 178                         set_socket_options(s,user_socket_options);
 179
 180                         if (listen(s, 5) == -1) {
 181                                 DEBUG(0,("listen: %s\n",strerror(errno)));
 182                                 close(s);
 183                                 return False;
 184                         }
 185                         FD_SET(s,&listen_set);
 186                 }
 187         } else {
 188                 /* Just bind to 0.0.0.0 - accept connections
 189                    from anywhere. */
 190                 num_interfaces = 1;
 191
 192                 /* open an incoming socket */
 193                 s = open_socket_in(SOCK_STREAM, port, 0,
 194                                    interpret_addr(lp_socket_address()),True);
 195                 if (s == -1)
 196                         return(False);
 197
 198                 /* ready to listen */
 199                 set_socket_options(s,"SO_KEEPALIVE");
 200                 set_socket_options(s,user_socket_options);
 201
 202                 if (listen(s, 5) == -1) {
 203                         DEBUG(0,("open_sockets: listen: %s\n",
 204                                  strerror(errno)));
 205                         close(s);
 206                         return False;
 207                 }
 208
 209                 fd_listenset[0] = s;
 210                 FD_SET(s,&listen_set);
 211         }
 212
 213         /* now accept incoming connections - forking a new process
 214            for each incoming connection */
 215         DEBUG(2,("waiting for a connection\n"));
 216         while (1) {
 217                 fd_set lfds;
 218                 int num;
 219
 220                 /* Free up temporary memory from the main smbd. */
 221                 lp_talloc_free();
 222
 223                 /* Ensure we respond to PING and DEBUG messages from the main smbd. */
 224                 message_dispatch();
 225
 226                 memcpy((char *)&lfds, (char *)&listen_set,
 227                        sizeof(listen_set));
 228
 229                 num = sys_select(FD_SETSIZE,&lfds,NULL,NULL,NULL);
 230
 231                 if (num == -1 && errno == EINTR) {
 232                         if (got_sig_term) {
 233                                 exit_server("Caught TERM signal");
 234                         }
 235
 236                         /* check for sighup processing */
 237                         if (reload_after_sighup) {
 238                                 DEBUG(0,("Got SIGHUP\n"));
 239                                 change_to_root_user();
 240                                 DEBUG(1,("Reloading services after SIGHUP\n"));
 241                                 reload_services(False);
 242                                 reload_after_sighup = False;
 243                         }
 244
 245                         continue;
 246                 }
 247
 248                 /* check if we need to reload services */
 249                 check_reload(time(NULL));
 250
 251                 /* Find the sockets that are read-ready -
 252                    accept on these. */
 253                 for( ; num > 0; num--) {
 254                         struct sockaddr addr;
 255                         socklen_t in_addrlen = sizeof(addr);
 256
 257                         s = -1;
 258                         for(i = 0; i < num_interfaces; i++) {
 259                                 if(FD_ISSET(fd_listenset[i],&lfds)) {
 260                                         s = fd_listenset[i];
 261                                         /* Clear this so we don't look
 262                                            at it again. */
 263                                         FD_CLR(fd_listenset[i],&lfds);
 264                                         break;
 265                                 }
 266                         }
 267
 268                         smbd_set_server_fd(accept(s,&addr,&in_addrlen));
 269
 270                         if (smbd_server_fd() == -1 && errno == EINTR)
 271                                 continue;
 272
 273                         if (smbd_server_fd() == -1) {
 274                                 DEBUG(0,("open_sockets: accept: %s\n",
 275                                          strerror(errno)));
 276                                 continue;
 277                         }
 278
 279                         if (smbd_server_fd() != -1 && interactive)
 280                                 return True;
 281
 282                         if (smbd_server_fd() != -1 && sys_fork()==0) {
 283                                 /* Child code ... */
 284
 285                                 /* close the listening socket(s) */
 286                                 for(i = 0; i < num_interfaces; i++)
 287                                         close(fd_listenset[i]);
 288
 289                                 /* close our standard file
 290                                    descriptors */
 291                                 close_low_fds();
 292                                 am_parent = 0;
 293
 294                                 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
 295                                 set_socket_options(smbd_server_fd(),user_socket_options);
 296
 297                                 /* Reset global variables in util.c so
 298                                    that client substitutions will be
 299                                    done correctly in the process.  */
 300                                 reset_globals_after_fork();
 301
 302                                 /* tdb needs special fork handling */
 303                                 tdb_reopen_all();
 304
 305                                 return True;
 306                         }
 307                         /* The parent doesn't need this socket */
 308                         close(smbd_server_fd());
 309
 310                         /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
 311                                 Clear the closed fd info out of server_fd --
 312                                 and more importantly, out of client_fd in
 313                                 util_sock.c, to avoid a possible
 314                                 getpeername failure if we reopen the logs
 315                                 and use %I in the filename.
 316                         */
 317
 318                         smbd_set_server_fd(-1);
 319
 320                         /* Force parent to check log size after
 321                          * spawning child.  Fix from
 322                          * klausr@ITAP.Physik.Uni-Stuttgart.De.  The
 323                          * parent smbd will log to logserver.smb.  It
 324                          * writes only two messages for each child
 325                          * started/finished. But each child writes,
 326                          * say, 50 messages also in logserver.smb,
 327                          * begining with the debug_count of the
 328                          * parent, before the child opens its own log
 329                          * file logserver.client. In a worst case
 330                          * scenario the size of logserver.smb would be
 331                          * checked after about 50*50=2500 messages
 332                          * (ca. 100kb).
 333                          * */
 334                         force_check_log_size();
 335
 336                 } /* end for num */
 337         } /* end while 1 */
 338
 339 /* NOTREACHED   return True; */
 340 }
 341
 342 /****************************************************************************
 343  Reload the services file.
 344  **************************************************************************/
 345
 346 BOOL reload_services(BOOL test)
 347 {
 348         BOOL ret;
 349
 350         if (lp_loaded()) {
 351                 pstring fname;
 352                 pstrcpy(fname,lp_configfile());
 353                 if (file_exist(fname,NULL) && !strcsequal(fname,servicesf)) {
 354                         pstrcpy(servicesf,fname);
 355                         test = False;
 356                 }
 357         }
 358
 359         reopen_logs();
 360
 361         if (test && !lp_file_list_changed())
 362                 return(True);
 363
 364         lp_killunused(conn_snum_used);
 365
 366         ret = lp_load(servicesf,False,False,True);
 367
 368         load_printers();
 369
 370         /* perhaps the config filename is now set */
 371         if (!test)
 372                 reload_services(True);
 373
 374         reopen_logs();
 375
 376         load_interfaces();
 377
 378         {
 379                 if (smbd_server_fd() != -1) {
 380                         set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
 381                         set_socket_options(smbd_server_fd(),user_socket_options);
 382                 }
 383         }
 384
 385         mangle_reset_cache();
 386         reset_stat_cache();
 387
 388         /* this forces service parameters to be flushed */
 389         set_current_service(NULL,True);
 390
 391         return(ret);
 392 }
 393
 394 #if DUMP_CORE
 395 /*******************************************************************
 396  Prepare to dump a core file - carefully !
 397 ********************************************************************/
 398
 399 static BOOL dump_core(void)
 400 {
 401         char *p;
 402         pstring dname;
 403         pstrcpy(dname,lp_logfile());
 404         if ((p=strrchr(dname,'/'))) *p=0;
 405         pstrcat(dname,"/corefiles");
 406         mkdir(dname,0700);
 407         sys_chown(dname,getuid(),getgid());
 408         chmod(dname,0700);
 409         if (chdir(dname)) return(False);
 410         umask(~(0700));
 411
 412 #ifdef HAVE_GETRLIMIT
 413 #ifdef RLIMIT_CORE
 414         {
 415                 struct rlimit rlp;
 416                 getrlimit(RLIMIT_CORE, &rlp);
 417                 rlp.rlim_cur = MAX(4*1024*1024,rlp.rlim_cur);
 418                 setrlimit(RLIMIT_CORE, &rlp);
 419                 getrlimit(RLIMIT_CORE, &rlp);
 420                 DEBUG(3,("Core limits now %d %d\n",
 421                          (int)rlp.rlim_cur,(int)rlp.rlim_max));
 422         }
 423 #endif
 424 #endif
 425
 426
 427         DEBUG(0,("Dumping core in %s\n",dname));
 428         abort();
 429         return(True);
 430 }
 431 #endif
 432
 433 /****************************************************************************
 434 update the current smbd process count
 435 ****************************************************************************/
 436
 437 static void decrement_smbd_process_count(void)
 438 {
 439         int32 total_smbds;
 440
 441         if (lp_max_smbd_processes()) {
 442                 total_smbds = 0;
 443                 tdb_change_int32_atomic(conn_tdb_ctx(), "INFO/total_smbds", &total_smbds, -1);
 444         }
 445 }
 446
 447 /****************************************************************************
 448  Exit the server.
 449 ****************************************************************************/
 450
 451 void exit_server(char *reason)
 452 {
 453         static int firsttime=1;
 454         extern char *last_inbuf;
 455
 456
 457         if (!firsttime) exit(0);
 458         firsttime = 0;
 459
 460         change_to_root_user();
 461         DEBUG(2,("Closing connections\n"));
 462
 463         conn_close_all();
 464
 465         invalidate_all_vuids();
 466
 467         /* delete our entry in the connections database. */
 468         if (lp_status(-1))
 469                 yield_connection(NULL,"");
 470
 471         respond_to_all_remaining_local_messages();
 472         decrement_smbd_process_count();
 473
 474 #ifdef WITH_DFS
 475         if (dcelogin_atmost_once) {
 476                 dfs_unlogin();
 477         }
 478 #endif
 479
 480         if (!reason) {
 481                 int oldlevel = DEBUGLEVEL;
 482                 DEBUGLEVEL = 10;
 483                 DEBUG(0,("Last message was %s\n",smb_fn_name(last_message)));
 484                 if (last_inbuf)
 485                         show_msg(last_inbuf);
 486                 DEBUGLEVEL = oldlevel;
 487                 DEBUG(0,("===============================================================\n"));
 488 #if DUMP_CORE
 489                 if (dump_core()) return;
 490 #endif
 491         }
 492
 493         locking_end();
 494
 495         DEBUG(3,("Server exit (%s)\n", (reason ? reason : "")));
 496         exit(0);
 497 }
 498
 499 /****************************************************************************
 500  Initialise connect, service and file structs.
 501 ****************************************************************************/
 502
 503 static void init_structs(void )
 504 {
 505         /*
 506          * Set the machine NETBIOS name if not already
 507          * set from the config file.
 508          */
 509
 510         if (!*global_myname) {
 511                 char *p;
 512                 fstrcpy( global_myname, myhostname() );
 513                 p = strchr( global_myname, '.' );
 514                 if (p)
 515                         *p = 0;
 516         }
 517
 518         strupper( global_myname );
 519
 520         conn_init();
 521
 522         file_init();
 523
 524         /* for RPC pipes */
 525         init_rpc_pipe_hnd();
 526
 527         init_dptrs();
 528
 529         secrets_init();
 530 }
 531
 532 /****************************************************************************
 533  Usage on the program.
 534 ****************************************************************************/
 535
 536 static void usage(char *pname)
 537 {
 538
 539         printf("Usage: %s [-DaioPh?V] [-d debuglevel] [-l log basename] [-p port]\n", pname);
 540         printf("       [-O socket options] [-s services file]\n");
 541         printf("\t-D                    Become a daemon (default)\n");
 542         printf("\t-a                    Append to log file (default)\n");
 543         printf("\t-i                    Run interactive (not a daemon)\n");
 544         printf("\t-o                    Overwrite log file, don't append\n");
 545         printf("\t-h                    Print usage\n");
 546         printf("\t-?                    Print usage\n");
 547         printf("\t-V                    Print version\n");
 548         printf("\t-d debuglevel         Set the debuglevel\n");
 549         printf("\t-l log basename.      Basename for log/debug files\n");
 550         printf("\t-p port               Listen on the specified port\n");
 551         printf("\t-O socket options     Socket options\n");
 552         printf("\t-s services file.     Filename of services file\n");
 553         printf("\n");
 554 }
 555
 556 /****************************************************************************
 557  main program.
 558 ****************************************************************************/
 559
 560  int main(int argc,char *argv[])
 561 {
 562         extern BOOL append_log;
 563         extern BOOL AllowDebugChange;
 564         /* shall I run as a daemon */
 565         BOOL is_daemon = False;
 566         BOOL interactive = False;
 567         BOOL specified_logfile = False;
 568         int port = SMB_PORT;
 569         int opt;
 570         extern char *optarg;
 571         pstring logfile;
 572
 573 #ifdef HAVE_SET_AUTH_PARAMETERS
 574         set_auth_parameters(argc,argv);
 575 #endif
 576
 577         /* this is for people who can't start the program correctly */
 578         while (argc > 1 && (*argv[1] != '-')) {
 579                 argv++;
 580                 argc--;
 581         }
 582
 583         while ( EOF != (opt = getopt(argc, argv, "O:l:s:d:Dip:h?Vaof:")) )
 584                 switch (opt)  {
 585                 case 'O':
 586                         pstrcpy(user_socket_options,optarg);
 587                         break;
 588
 589                 case 's':
 590                         pstrcpy(servicesf,optarg);
 591                         break;
 592
 593                 case 'l':
 594                         specified_logfile = True;
 595                         slprintf(logfile, sizeof(logfile)-1, "%s/log.smbd", optarg);
 596                         lp_set_logfile(logfile);
 597                         break;
 598
 599                 case 'a':
 600                         append_log = True;
 601                         break;
 602
 603                 case 'o':
 604                         append_log = False;
 605                         break;
 606
 607                 case 'D':
 608                         is_daemon = True;
 609                         break;
 610
 611                 case 'i':
 612                         interactive = True;
 613                         break;
 614
 615                 case 'd':
 616                         if (*optarg == 'A')
 617                                 DEBUGLEVEL = 10000;
 618                         else
 619                                 DEBUGLEVEL = atoi(optarg);
 620                         AllowDebugChange = False;
 621                         break;
 622
 623                 case 'p':
 624                         port = atoi(optarg);
 625                         break;
 626
 627                 case 'h':
 628                 case '?':
 629                         usage(argv[0]);
 630                         exit(0);
 631                         break;
 632
 633                 case 'V':
 634                         printf("Version %s\n",VERSION);
 635                         exit(0);
 636                         break;
 637                 default:
 638                         DEBUG(0,("Incorrect program usage - are you sure the command line is correct?\n"));
 639                         usage(argv[0]);
 640                         exit(1);
 641                 }
 642
 643 #ifdef HAVE_SETLUID
 644         /* needed for SecureWare on SCO */
 645         setluid(0);
 646 #endif
 647
 648         sec_init();
 649
 650         append_log = True;
 651
 652         TimeInit();
 653
 654         if(!specified_logfile) {
 655                 slprintf(logfile, sizeof(logfile)-1, "%s/log.smbd", LOGFILEBASE);
 656                 lp_set_logfile(logfile);
 657         }
 658
 659         pstrcpy(remote_machine, "smbd");
 660
 661         setup_logging(argv[0],interactive);
 662
 663         charset_initialise();
 664
 665         /* we want to re-seed early to prevent time delays causing
 666            client problems at a later date. (tridge) */
 667         generate_random_buffer(NULL, 0, False);
 668
 669         /* make absolutely sure we run as root - to handle cases where people
 670            are crazy enough to have it setuid */
 671
 672         gain_root_privilege();
 673         gain_root_group_privilege();
 674
 675         fault_setup((void (*)(void *))exit_server);
 676         CatchSignal(SIGTERM , SIGNAL_CAST sig_term);
 677         CatchSignal(SIGHUP,SIGNAL_CAST sig_hup);
 678
 679         /* we are never interested in SIGPIPE */
 680         BlockSignals(True,SIGPIPE);
 681
 682 #if defined(SIGFPE)
 683         /* we are never interested in SIGFPE */
 684         BlockSignals(True,SIGFPE);
 685 #endif
 686
 687 #if defined(SIGUSR2)
 688         /* We are no longer interested in USR2 */
 689         BlockSignals(True,SIGUSR2);
 690 #endif
 691
 692         /* POSIX demands that signals are inherited. If the invoking process has
 693          * these signals masked, we will have problems, as we won't recieve them. */
 694         BlockSignals(False, SIGHUP);
 695         BlockSignals(False, SIGUSR1);
 696         BlockSignals(False, SIGTERM);
 697
 698         /* we want total control over the permissions on created files,
 699            so set our umask to 0 */
 700         umask(0);
 701
 702         init_sec_ctx();
 703         init_conn_ctx();
 704
 705         reopen_logs();
 706
 707         DEBUG(0,( "smbd version %s started.\n", VERSION));
 708         DEBUGADD(0,( "Copyright Andrew Tridgell and the Samba Team 1992-2002\n"));
 709
 710         DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
 711                  (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
 712
 713         if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
 714                 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
 715                 exit(1);
 716         }
 717
 718         /*
 719          * Do this before reload_services.
 720          */
 721
 722         if (!reload_services(False))
 723                 return(-1);
 724
 725         init_structs();
 726
 727 #ifdef WITH_PROFILE
 728         if (!profile_setup(False)) {
 729                 DEBUG(0,("ERROR: failed to setup profiling shared memory\n"));
 730                 return -1;
 731         }
 732 #endif /* WITH_PROFILE */
 733
 734 #ifdef WITH_SSL
 735         {
 736                 extern BOOL sslEnabled;
 737                 sslEnabled = lp_ssl_enabled();
 738                 if(sslEnabled)
 739                         sslutil_init(True);
 740         }
 741 #endif        /* WITH_SSL */
 742
 743         codepage_initialise(lp_client_code_page());
 744
 745         fstrcpy(global_myworkgroup, lp_workgroup());
 746
 747         DEBUG(3,( "loaded services\n"));
 748
 749         if (!is_daemon && !is_a_socket(0)) {
 750                 if (!interactive)
 751                         DEBUG(0,("standard input is not a socket, assuming -D option\n"));
 752
 753                 /*
 754                  * Setting is_daemon here prevents us from eventually calling
 755                  * the open_sockets_inetd()
 756                  */
 757
 758                 is_daemon = True;
 759         }
 760
 761         if (is_daemon && !interactive) {
 762                 DEBUG( 3, ( "Becoming a daemon.\n" ) );
 763                 become_daemon();
 764         }
 765
 766 #if HAVE_SETPGID
 767         /*
 768          * If we're interactive we want to set our own process group for
 769          * signal management.
 770          */
 771         if (interactive)
 772                 setpgid( (pid_t)0, (pid_t)0);
 773 #endif
 774
 775         if (!directory_exist(lp_lockdir(), NULL))
 776                 mkdir(lp_lockdir(), 0755);
 777
 778         if (is_daemon)
 779                 pidfile_create("smbd");
 780
 781         if (!message_init())
 782                 exit(1);
 783
 784         /* Setup the main smbd so that we can get messages. */
 785         if (lp_status(-1))
 786                 claim_connection(NULL,"",0,True);
 787
 788         /* Attempt to migrate from an old 2.0.x machine account file. */
 789         if (!migrate_from_old_password_file(global_myworkgroup))
 790                 DEBUG(0,("Failed to migrate from old MAC file.\n"));
 791
 792         if(!pdb_generate_sam_sid()) {
 793                 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
 794                 exit(1);
 795         }
 796
 797         if (!open_sockets(is_daemon,interactive,port))
 798                 exit(1);
 799
 800         /*
 801          * Everything after this point is run after the fork().
 802          */
 803
 804         if (!locking_init(0))
 805                 exit(1);
 806
 807         if (!print_backend_init())
 808                 exit(1);
 809
 810         if (!share_info_db_init())
 811                 exit(1);
 812
 813         if(!initialize_password_db(False))
 814                 exit(1);
 815
 816         /* possibly reload the services file. */
 817         reload_services(True);
 818
 819         if (*lp_rootdir()) {
 820                 if (sys_chroot(lp_rootdir()) == 0)
 821                         DEBUG(2,("Changed root to %s\n", lp_rootdir()));
 822         }
 823
 824         /* Setup oplocks */
 825         if (!init_oplocks())
 826                 exit(1);
 827
 828         /* Setup change notify */
 829         if (!init_change_notify())
 830                 exit(1);
 831
 832         smbd_process();
 833
 834         exit_server("normal exit");
 835         return(0);
 836 }