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