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