source/smbd/server.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Main SMB server routines
   4    Copyright (C) Andrew Tridgell                1992-1998
   5    Copyright (C) Martin Pool                    2002
   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 extern fstring global_myworkgroup;
  25 extern pstring global_myname;
  26
  27 int am_parent = 1;
  28
  29 /* the last message the was processed */
  30 int last_message = -1;
  31
  32 /* a useful macro to debug the last message processed */
  33 #define LAST_MESSAGE() smb_fn_name(last_message)
  34
  35 extern pstring user_socket_options;
  36
  37 #ifdef WITH_DFS
  38 extern int dcelogin_atmost_once;
  39 #endif /* WITH_DFS */
  40
  41 extern fstring remote_machine;
  42
  43 /* really we should have a top level context structure that has the
  44    client file descriptor as an element. That would require a major rewrite :(
  45
  46    the following 2 functions are an alternative - they make the file
  47    descriptor private to smbd
  48  */
  49 static int server_fd = -1;
  50
  51 int smbd_server_fd(void)
  52 {
  53         return server_fd;
  54 }
  55
  56 static void smbd_set_server_fd(int fd)
  57 {
  58         server_fd = fd;
  59         client_setfd(fd);
  60 }
  61
  62 /****************************************************************************
  63  Terminate signal.
  64 ****************************************************************************/
  65
  66 SIG_ATOMIC_T got_sig_term = 0;
  67
  68 static void sig_term(void)
  69 {
  70         got_sig_term = 1;
  71         sys_select_signal();
  72 }
  73
  74 /****************************************************************************
  75  Catch a sighup.
  76 ****************************************************************************/
  77
  78 SIG_ATOMIC_T reload_after_sighup = 0;
  79
  80 static void sig_hup(int sig)
  81 {
  82         reload_after_sighup = 1;
  83         sys_select_signal();
  84 }
  85
  86 /****************************************************************************
  87   Send a SIGTERM to our process group.
  88 *****************************************************************************/
  89
  90 static void  killkids(void)
  91 {
  92         if(am_parent) kill(0,SIGTERM);
  93 }
  94
  95 /****************************************************************************
  96  Process a sam sync message - not sure whether to do this here or
  97  somewhere else.
  98 ****************************************************************************/
  99
 100 static void msg_sam_sync(int UNUSED(msg_type), pid_t UNUSED(pid),
 101                          void *UNUSED(buf), size_t UNUSED(len))
 102 {
 103         DEBUG(10, ("** sam sync message received, ignoring\n"));
 104 }
 105
 106 /****************************************************************************
 107  Process a sam sync replicate message - not sure whether to do this here or
 108  somewhere else.
 109 ****************************************************************************/
 110
 111 static void msg_sam_repl(int msg_type, pid_t pid, void *buf, size_t len)
 112 {
 113         uint32 low_serial;
 114
 115         if (len != sizeof(uint32))
 116                 return;
 117
 118         low_serial = *((uint32 *)buf);
 119
 120         DEBUG(3, ("received sam replication message, serial = 0x%04x\n",
 121                   low_serial));
 122 }
 123
 124 /****************************************************************************
 125  Open the socket communication - inetd.
 126 ****************************************************************************/
 127
 128 static BOOL open_sockets_inetd(void)
 129 {
 130         /* Started from inetd. fd 0 is the socket. */
 131         /* We will abort gracefully when the client or remote system
 132            goes away */
 133         smbd_set_server_fd(dup(0));
 134
 135         /* close our standard file descriptors */
 136         close_low_fds();
 137
 138         set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
 139         set_socket_options(smbd_server_fd(), user_socket_options);
 140
 141         return True;
 142 }
 143
 144 static void msg_exit_server(int msg_type, pid_t src, void *buf, size_t len)
 145 {
 146         exit_server("Got a SHUTDOWN message");
 147 }
 148
 149
 150 /****************************************************************************
 151  Open the socket communication.
 152 ****************************************************************************/
 153
 154 static BOOL open_sockets(BOOL is_daemon,int port)
 155 {
 156         int num_interfaces = iface_count();
 157         int fd_listenset[FD_SETSIZE];
 158         fd_set listen_set;
 159         int s;
 160         int i;
 161
 162         if (!is_daemon) {
 163                 return open_sockets_inetd();
 164         }
 165
 166
 167 #ifdef HAVE_ATEXIT
 168         {
 169                 static int atexit_set;
 170                 if(atexit_set == 0) {
 171                         atexit_set=1;
 172                         atexit(killkids);
 173                 }
 174         }
 175 #endif
 176
 177         /* Stop zombies */
 178         CatchChild();
 179
 180
 181         FD_ZERO(&listen_set);
 182
 183         if(lp_interfaces() && lp_bind_interfaces_only()) {
 184                 /* We have been given an interfaces line, and been
 185                    told to only bind to those interfaces. Create a
 186                    socket per interface and bind to only these.
 187                 */
 188
 189                 if(num_interfaces > FD_SETSIZE) {
 190                         DEBUG(0,("open_sockets: Too many interfaces specified to bind to. Number was %d \
 191 max can be %d\n",
 192                                  num_interfaces, FD_SETSIZE));
 193                         return False;
 194                 }
 195
 196                 /* Now open a listen socket for each of the
 197                    interfaces. */
 198                 for(i = 0; i < num_interfaces; i++) {
 199                         struct in_addr *ifip = iface_n_ip(i);
 200
 201                         if(ifip == NULL) {
 202                                 DEBUG(0,("open_sockets: interface %d has NULL IP address !\n", i));
 203                                 continue;
 204                         }
 205                         s = fd_listenset[i] = open_socket_in(SOCK_STREAM, port, 0, ifip->s_addr, True);
 206                         if(s == -1)
 207                                 return False;
 208
 209                         /* ready to listen */
 210                         set_socket_options(s,"SO_KEEPALIVE");
 211                         set_socket_options(s,user_socket_options);
 212
 213                         if (listen(s, 5) == -1) {
 214                                 DEBUG(0,("listen: %s\n",strerror(errno)));
 215                                 close(s);
 216                                 return False;
 217                         }
 218                         FD_SET(s,&listen_set);
 219                 }
 220         } else {
 221                 /* Just bind to 0.0.0.0 - accept connections
 222                    from anywhere. */
 223                 num_interfaces = 1;
 224
 225                 /* open an incoming socket */
 226                 s = open_socket_in(SOCK_STREAM, port, 0,
 227                                    interpret_addr(lp_socket_address()),True);
 228                 if (s == -1)
 229                         return(False);
 230
 231                 /* ready to listen */
 232                 set_socket_options(s,"SO_KEEPALIVE");
 233                 set_socket_options(s,user_socket_options);
 234
 235                 if (listen(s, 5) == -1) {
 236                         DEBUG(0,("open_sockets: listen: %s\n",
 237                                  strerror(errno)));
 238                         close(s);
 239                         return False;
 240                 }
 241
 242                 fd_listenset[0] = s;
 243                 FD_SET(s,&listen_set);
 244         }
 245
 246         /* Listen to messages */
 247
 248         message_register(MSG_SMB_SAM_SYNC, msg_sam_sync);
 249         message_register(MSG_SMB_SAM_REPL, msg_sam_repl);
 250         message_register(MSG_SHUTDOWN, msg_exit_server);
 251
 252         /* now accept incoming connections - forking a new process
 253            for each incoming connection */
 254         DEBUG(2,("waiting for a connection\n"));
 255         while (1) {
 256                 fd_set lfds;
 257                 int num;
 258
 259                 /* Free up temporary memory from the main smbd. */
 260                 lp_talloc_free();
 261
 262                 /* Ensure we respond to PING and DEBUG messages from the main smbd. */
 263                 message_dispatch();
 264
 265                 memcpy((char *)&lfds, (char *)&listen_set,
 266                        sizeof(listen_set));
 267
 268                 num = sys_select(FD_SETSIZE,&lfds,NULL,NULL,NULL);
 269
 270                 if (num == -1 && errno == EINTR) {
 271                         if (got_sig_term) {
 272                                 exit_server("Caught TERM signal");
 273                         }
 274
 275                         /* check for sighup processing */
 276                         if (reload_after_sighup) {
 277                                 change_to_root_user();
 278                                 DEBUG(1,("Reloading services after SIGHUP\n"));
 279                                 reload_services(False);
 280                                 reload_after_sighup = 0;
 281                         }
 282
 283                         continue;
 284                 }
 285
 286                 /* check if we need to reload services */
 287                 check_reload(time(NULL));
 288
 289                 /* Find the sockets that are read-ready -
 290                    accept on these. */
 291                 for( ; num > 0; num--) {
 292                         struct sockaddr addr;
 293                         socklen_t in_addrlen = sizeof(addr);
 294
 295                         s = -1;
 296                         for(i = 0; i < num_interfaces; i++) {
 297                                 if(FD_ISSET(fd_listenset[i],&lfds)) {
 298                                         s = fd_listenset[i];
 299                                         /* Clear this so we don't look
 300                                            at it again. */
 301                                         FD_CLR(fd_listenset[i],&lfds);
 302                                         break;
 303                                 }
 304                         }
 305
 306                         smbd_set_server_fd(accept(s,&addr,&in_addrlen));
 307
 308                         if (smbd_server_fd() == -1 && errno == EINTR)
 309                                 continue;
 310
 311                         if (smbd_server_fd() == -1) {
 312                                 DEBUG(0,("open_sockets: accept: %s\n",
 313                                          strerror(errno)));
 314                                 continue;
 315                         }
 316
 317                         if (smbd_server_fd() != -1 && sys_fork()==0) {
 318                                 /* Child code ... */
 319
 320                                 /* close the listening socket(s) */
 321                                 for(i = 0; i < num_interfaces; i++)
 322                                         close(fd_listenset[i]);
 323
 324                                 /* close our standard file
 325                                    descriptors */
 326                                 close_low_fds();
 327                                 am_parent = 0;
 328
 329                                 set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
 330                                 set_socket_options(smbd_server_fd(),user_socket_options);
 331
 332                                 /* Reset global variables in util.c so
 333                                    that client substitutions will be
 334                                    done correctly in the process.  */
 335                                 reset_globals_after_fork();
 336
 337                                 /* tdb needs special fork handling */
 338                                 tdb_reopen_all();
 339
 340                                 return True;
 341                         }
 342                         /* The parent doesn't need this socket */
 343                         close(smbd_server_fd());
 344
 345                         /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
 346                                 Clear the closed fd info out of server_fd --
 347                                 and more importantly, out of client_fd in
 348                                 util_sock.c, to avoid a possible
 349                                 getpeername failure if we reopen the logs
 350                                 and use %I in the filename.
 351                         */
 352
 353                         smbd_set_server_fd(-1);
 354
 355                         /* Force parent to check log size after
 356                          * spawning child.  Fix from
 357                          * klausr@ITAP.Physik.Uni-Stuttgart.De.  The
 358                          * parent smbd will log to logserver.smb.  It
 359                          * writes only two messages for each child
 360                          * started/finished. But each child writes,
 361                          * say, 50 messages also in logserver.smb,
 362                          * begining with the debug_count of the
 363                          * parent, before the child opens its own log
 364                          * file logserver.client. In a worst case
 365                          * scenario the size of logserver.smb would be
 366                          * checked after about 50*50=2500 messages
 367                          * (ca. 100kb).
 368                          * */
 369                         force_check_log_size();
 370
 371                 } /* end for num */
 372         } /* end while 1 */
 373
 374 /* NOTREACHED   return True; */
 375 }
 376
 377 /****************************************************************************
 378  Reload the services file.
 379 **************************************************************************/
 380
 381 BOOL reload_services(BOOL test)
 382 {
 383         BOOL ret;
 384
 385         set_register_printer_fn();
 386
 387         if (lp_loaded()) {
 388                 pstring fname;
 389                 pstrcpy(fname,lp_configfile());
 390                 if (file_exist(fname, NULL) &&
 391                     !strcsequal(fname, dyn_CONFIGFILE)) {
 392                         pstrcpy(dyn_CONFIGFILE, fname);
 393                         test = False;
 394                 }
 395         }
 396
 397         reopen_logs();
 398
 399         if (test && !lp_file_list_changed())
 400                 return(True);
 401
 402         lp_killunused(conn_snum_used);
 403
 404         ret = lp_load(dyn_CONFIGFILE, False, False, True);
 405
 406         load_printers();
 407
 408         /* perhaps the config filename is now set */
 409         if (!test)
 410                 reload_services(True);
 411
 412         reopen_logs();
 413
 414         load_interfaces();
 415
 416         {
 417                 if (smbd_server_fd() != -1) {
 418                         set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
 419                         set_socket_options(smbd_server_fd(), user_socket_options);
 420                 }
 421         }
 422
 423         mangle_reset_cache();
 424         reset_stat_cache();
 425
 426         /* this forces service parameters to be flushed */
 427         set_current_service(NULL,True);
 428
 429         return(ret);
 430 }
 431
 432 #if DUMP_CORE
 433 /*******************************************************************
 434 prepare to dump a core file - carefully!
 435 ********************************************************************/
 436 static BOOL dump_core(void)
 437 {
 438         char *p;
 439         pstring dname;
 440
 441         pstrcpy(dname,lp_logfile());
 442         if ((p=strrchr_m(dname,'/'))) *p=0;
 443         pstrcat(dname,"/corefiles");
 444         mkdir(dname,0700);
 445         sys_chown(dname,getuid(),getgid());
 446         chmod(dname,0700);
 447         if (chdir(dname)) return(False);
 448         umask(~(0700));
 449
 450 #ifdef HAVE_GETRLIMIT
 451 #ifdef RLIMIT_CORE
 452         {
 453                 struct rlimit rlp;
 454                 getrlimit(RLIMIT_CORE, &rlp);
 455                 rlp.rlim_cur = MAX(4*1024*1024,rlp.rlim_cur);
 456                 setrlimit(RLIMIT_CORE, &rlp);
 457                 getrlimit(RLIMIT_CORE, &rlp);
 458                 DEBUG(3,("Core limits now %d %d\n",
 459                          (int)rlp.rlim_cur,(int)rlp.rlim_max));
 460         }
 461 #endif
 462 #endif
 463
 464
 465         DEBUG(0,("Dumping core in %s\n", dname));
 466         abort();
 467         return(True);
 468 }
 469 #endif
 470
 471 /****************************************************************************
 472 update the current smbd process count
 473 ****************************************************************************/
 474
 475 static void decrement_smbd_process_count(void)
 476 {
 477         int32 total_smbds;
 478
 479         if (lp_max_smbd_processes()) {
 480                 total_smbds = 0;
 481                 tdb_change_int32_atomic(conn_tdb_ctx(), "INFO/total_smbds", &total_smbds, -1);
 482         }
 483 }
 484
 485 /****************************************************************************
 486  Exit the server.
 487 ****************************************************************************/
 488
 489 void exit_server(char *reason)
 490 {
 491         static int firsttime=1;
 492         extern char *last_inbuf;
 493         extern struct auth_context *negprot_global_auth_context;
 494
 495         if (!firsttime)
 496                 exit(0);
 497         firsttime = 0;
 498
 499         change_to_root_user();
 500         DEBUG(2,("Closing connections\n"));
 501
 502         if (negprot_global_auth_context) {
 503                 (negprot_global_auth_context->free)(&negprot_global_auth_context);
 504         }
 505
 506         conn_close_all();
 507
 508         invalidate_all_vuids();
 509
 510         /* delete our entry in the connections database. */
 511         yield_connection(NULL,"");
 512
 513         respond_to_all_remaining_local_messages();
 514         decrement_smbd_process_count();
 515
 516 #ifdef WITH_DFS
 517         if (dcelogin_atmost_once) {
 518                 dfs_unlogin();
 519         }
 520 #endif
 521
 522         if (!reason) {
 523                 int oldlevel = DEBUGLEVEL;
 524                 DEBUGLEVEL = 10;
 525                 DEBUG(0,("Last message was %s\n",smb_fn_name(last_message)));
 526                 if (last_inbuf)
 527                         show_msg(last_inbuf);
 528                 DEBUGLEVEL = oldlevel;
 529                 DEBUG(0,("===============================================================\n"));
 530 #if DUMP_CORE
 531                 if (dump_core()) return;
 532 #endif
 533         }
 534
 535         locking_end();
 536         printing_end();
 537
 538         DEBUG(3,("Server exit (%s)\n", (reason ? reason : "")));
 539         exit(0);
 540 }
 541
 542 /****************************************************************************
 543  Initialise connect, service and file structs.
 544 ****************************************************************************/
 545
 546 static void init_structs(void )
 547 {
 548         /*
 549          * Set the machine NETBIOS name if not already
 550          * set from the config file.
 551          */
 552
 553         if (!*global_myname) {
 554                 char *p;
 555                 pstrcpy( global_myname, myhostname() );
 556                 p = strchr_m(global_myname, '.' );
 557                 if (p)
 558                         *p = 0;
 559         }
 560
 561         strupper(global_myname);
 562
 563         conn_init();
 564
 565         file_init();
 566
 567         /* for RPC pipes */
 568         init_rpc_pipe_hnd();
 569
 570         init_dptrs();
 571
 572         secrets_init();
 573
 574 }
 575
 576 /****************************************************************************
 577  Usage on the program.
 578 ****************************************************************************/
 579
 580 static void usage(char *pname)
 581 {
 582
 583         d_printf("Usage: %s [-DaioPh?Vb] [-d debuglevel] [-l log basename] [-p port]\n", pname);
 584         d_printf("       [-O socket options] [-s services file]\n");
 585         d_printf("\t-D                    Become a daemon (default)\n");
 586         d_printf("\t-a                    Append to log file (default)\n");
 587         d_printf("\t-i                    Run interactive (not a daemon)\n" );
 588         d_printf("\t-o                    Overwrite log file, don't append\n");
 589         d_printf("\t-h                    Print usage\n");
 590         d_printf("\t-?                    Print usage\n");
 591         d_printf("\t-V                    Print version\n");
 592         d_printf("\t-b                    Print build options\n");
 593         d_printf("\t-d debuglevel         Set the debuglevel\n");
 594         d_printf("\t-l log basename.      Basename for log/debug files\n");
 595         d_printf("\t-p port               Listen on the specified port\n");
 596         d_printf("\t-O socket options     Socket options\n");
 597         d_printf("\t-s services file.     Filename of services file\n");
 598         d_printf("\n");
 599 }
 600
 601 /****************************************************************************
 602  main program.
 603 ****************************************************************************/
 604
 605  int main(int argc,char *argv[])
 606 {
 607         extern BOOL append_log;
 608         extern BOOL AllowDebugChange;
 609         extern char *optarg;
 610         /* shall I run as a daemon */
 611         BOOL is_daemon = False;
 612         BOOL interactive = False;
 613         BOOL specified_logfile = False;
 614         int port = SMB_PORT;
 615         int opt;
 616         pstring logfile;
 617
 618 #ifdef HAVE_SET_AUTH_PARAMETERS
 619         set_auth_parameters(argc,argv);
 620 #endif
 621
 622         /* this is for people who can't start the program correctly */
 623         while (argc > 1 && (*argv[1] != '-')) {
 624                 argv++;
 625                 argc--;
 626         }
 627
 628         while ( EOF != (opt = getopt(argc, argv, "O:l:s:d:Dp:h?bVaiof:")) )
 629                 switch (opt)  {
 630                 case 'O':
 631                         pstrcpy(user_socket_options,optarg);
 632                         break;
 633
 634                 case 's':
 635                         pstrcpy(dyn_CONFIGFILE,optarg);
 636                         break;
 637
 638                 case 'l':
 639                         specified_logfile = True;
 640                         pstr_sprintf(logfile, "%s/log.smbd", optarg);
 641                         lp_set_logfile(logfile);
 642                         break;
 643
 644                 case 'a':
 645                         append_log = True;
 646                         break;
 647
 648                 case 'i':
 649                         interactive = True;
 650                         break;
 651
 652                 case 'o':
 653                         append_log = False;
 654                         break;
 655
 656                 case 'D':
 657                         is_daemon = True;
 658                         break;
 659
 660                 case 'd':
 661                         if (*optarg == 'A')
 662                                 DEBUGLEVEL = 10000;
 663                         else
 664                                 DEBUGLEVEL = atoi(optarg);
 665                         AllowDebugChange = False;
 666                         break;
 667
 668                 case 'p':
 669                         port = atoi(optarg);
 670                         break;
 671
 672                 case 'h':
 673                 case '?':
 674                         usage(argv[0]);
 675                         exit(0);
 676                         break;
 677
 678                 case 'V':
 679                         d_printf("Version %s\n",VERSION);
 680                         exit(0);
 681                         break;
 682                 case 'b':
 683                         build_options(True); /* Display output to screen as well as debug */
 684                         exit(0);
 685                         break;
 686                 default:
 687                         DEBUG(0,("Incorrect program usage - are you sure the command line is correct?\n"));
 688                         usage(argv[0]);
 689                         exit(1);
 690                 }
 691
 692 #ifdef HAVE_SETLUID
 693         /* needed for SecureWare on SCO */
 694         setluid(0);
 695 #endif
 696
 697         sec_init();
 698
 699         load_case_tables();
 700
 701         append_log = True;
 702
 703         if(!specified_logfile) {
 704                 pstr_sprintf(logfile, "%s/log.smbd", dyn_LOGFILEBASE);
 705                 lp_set_logfile(logfile);
 706         }
 707
 708         fstrcpy(remote_machine, "smbd");
 709
 710         setup_logging(argv[0],interactive);
 711
 712         /* we want to re-seed early to prevent time delays causing
 713            client problems at a later date. (tridge) */
 714         generate_random_buffer(NULL, 0, False);
 715
 716         /* make absolutely sure we run as root - to handle cases where people
 717            are crazy enough to have it setuid */
 718
 719         gain_root_privilege();
 720         gain_root_group_privilege();
 721
 722         fault_setup((void (*)(void *))exit_server);
 723         CatchSignal(SIGTERM , SIGNAL_CAST sig_term);
 724         CatchSignal(SIGHUP,SIGNAL_CAST sig_hup);
 725
 726         /* we are never interested in SIGPIPE */
 727         BlockSignals(True,SIGPIPE);
 728
 729 #if defined(SIGFPE)
 730         /* we are never interested in SIGFPE */
 731         BlockSignals(True,SIGFPE);
 732 #endif
 733
 734 #if defined(SIGUSR2)
 735         /* We are no longer interested in USR2 */
 736         BlockSignals(True,SIGUSR2);
 737 #endif
 738
 739         /* POSIX demands that signals are inherited. If the invoking process has
 740          * these signals masked, we will have problems, as we won't recieve them. */
 741         BlockSignals(False, SIGHUP);
 742         BlockSignals(False, SIGUSR1);
 743         BlockSignals(False, SIGTERM);
 744
 745         /* we want total control over the permissions on created files,
 746            so set our umask to 0 */
 747         umask(0);
 748
 749         init_sec_ctx();
 750
 751         reopen_logs();
 752
 753         DEBUG(0,( "smbd version %s started.\n", VERSION));
 754         DEBUGADD(0,( "Copyright Andrew Tridgell and the Samba Team 1992-2002\n"));
 755
 756         DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
 757                  (int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
 758
 759         /* Output the build options to the debug log */
 760         build_options(False);
 761
 762         if (sizeof(uint16) < 2 || sizeof(uint32) < 4) {
 763                 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
 764                 exit(1);
 765         }
 766
 767         /*
 768          * Do this before reload_services.
 769          */
 770
 771         if (!reload_services(False))
 772                 return(-1);
 773
 774         init_structs();
 775
 776         /* don't call winbind for our domain if we are the DC */
 777         if (lp_domain_logons()) {
 778                 winbind_exclude_domain(lp_workgroup());
 779         }
 780
 781 #ifdef WITH_PROFILE
 782         if (!profile_setup(False)) {
 783                 DEBUG(0,("ERROR: failed to setup profiling\n"));
 784                 return -1;
 785         }
 786 #endif
 787
 788         fstrcpy(global_myworkgroup, lp_workgroup());
 789
 790         DEBUG(3,( "loaded services\n"));
 791
 792         if (!is_daemon && !is_a_socket(0)) {
 793                 if (!interactive)
 794                         DEBUG(0,("standard input is not a socket, assuming -D option\n"));
 795
 796                 /*
 797                  * Setting is_daemon here prevents us from eventually calling
 798                  * the open_sockets_inetd()
 799                  */
 800
 801                 is_daemon = True;
 802         }
 803
 804         if (is_daemon && !interactive) {
 805                 DEBUG( 3, ( "Becoming a daemon.\n" ) );
 806                 become_daemon();
 807         }
 808
 809 #if HAVE_SETPGID
 810         /*
 811          * If we're interactive we want to set our own process group for
 812          * signal management.
 813          */
 814         if (interactive)
 815                 setpgid( (pid_t)0, (pid_t)0);
 816 #endif
 817
 818         if (!directory_exist(lp_lockdir(), NULL)) {
 819                 mkdir(lp_lockdir(), 0755);
 820         }
 821
 822         if (is_daemon) {
 823                 pidfile_create("smbd");
 824         }
 825
 826         if (!message_init()) {
 827                 exit(1);
 828         }
 829         register_msg_pool_usage();
 830         register_dmalloc_msgs();
 831
 832         /* Setup the main smbd so that we can get messages. */
 833         claim_connection(NULL,"",0,True);
 834
 835         /*
 836            DO NOT ENABLE THIS TILL YOU COPE WITH KILLING THESE TASKS AND INETD
 837            THIS *killed* LOTS OF BUILD FARM MACHINES. IT CREATED HUNDREDS OF
 838            smbd PROCESSES THAT NEVER DIE
 839            start_background_queue();
 840         */
 841
 842         if (!open_sockets(is_daemon,port))
 843                 exit(1);
 844
 845         /*
 846          * everything after this point is run after the fork()
 847          */
 848
 849         if (!locking_init(0))
 850                 exit(1);
 851
 852         if (!print_backend_init())
 853                 exit(1);
 854
 855         if (!share_info_db_init())
 856                 exit(1);
 857
 858         if (!init_registry())
 859                 exit(1);
 860
 861         if(!initialize_password_db(False))
 862                 exit(1);
 863
 864         uni_group_cache_init(); /* Non-critical */
 865
 866         /* possibly reload the services file. */
 867         reload_services(True);
 868
 869         if(!get_global_sam_sid()) {
 870                 DEBUG(0,("ERROR: Samba cannot create a SAM SID.\n"));
 871                 exit(1);
 872         }
 873
 874         if (!init_account_policy()) {
 875                 DEBUG(0,("Could not open account policy tdb.\n"));
 876                 exit(1);
 877         }
 878
 879         if (*lp_rootdir()) {
 880                 if (sys_chroot(lp_rootdir()) == 0)
 881                         DEBUG(2,("Changed root to %s\n", lp_rootdir()));
 882         }
 883
 884         /* Setup oplocks */
 885         if (!init_oplocks())
 886                 exit(1);
 887
 888         /* Setup change notify */
 889         if (!init_change_notify())
 890                 exit(1);
 891
 892         smbd_process();
 893
 894         uni_group_cache_shutdown();
 895         exit_server("normal exit");
 896         return(0);
 897 }