source/nsswitch/winbindd.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon for ntdom nss module
   5
   6    Copyright (C) by Tim Potter 2000, 2001
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "winbindd.h"
  24
  25 /* List of all connected clients */
  26
  27 struct winbindd_cli_state *client_list;
  28 static int num_clients;
  29 BOOL opt_nocache;
  30
  31 pstring servicesf = CONFIGFILE;
  32
  33 /* Reload configuration */
  34
  35 static BOOL reload_services_file(BOOL test)
  36 {
  37         BOOL ret;
  38         pstring logfile;
  39
  40         if (lp_loaded()) {
  41                 pstring fname;
  42
  43                 pstrcpy(fname,lp_configfile());
  44                 if (file_exist(fname,NULL) && !strcsequal(fname,servicesf)) {
  45                         pstrcpy(servicesf,fname);
  46                         test = False;
  47                 }
  48         }
  49
  50         snprintf(logfile, sizeof(logfile), "%s/log.winbindd", LOGFILEBASE);
  51         lp_set_logfile(logfile);
  52
  53         if (!reopen_logs()) {
  54                 fprintf(stderr, "Could not open logfile: %s\n", logfile);
  55                 fprintf(stderr, "Continuing in the hope that that is OK\n");
  56         }
  57
  58         ret = lp_load(servicesf,False,False,True);
  59
  60         snprintf(logfile, sizeof(logfile), "%s/log.winbindd", LOGFILEBASE);
  61         lp_set_logfile(logfile);
  62
  63         if (!reopen_logs()) {
  64                 fprintf(stderr, "Could not open logfile: %s\n", logfile);
  65                 fprintf(stderr, "Continuing in the hope that that is OK\n");
  66         }
  67
  68         load_interfaces();
  69
  70         return(ret);
  71 }
  72
  73 #if DUMP_CORE
  74
  75 /**************************************************************************** **
  76  Prepare to dump a core file - carefully!
  77  **************************************************************************** */
  78
  79 static BOOL dump_core(void)
  80 {
  81         char *p;
  82         pstring dname;
  83         pstrcpy( dname, lp_logfile() );
  84         if ((p=strrchr(dname,'/')))
  85                 *p=0;
  86         pstrcat( dname, "/corefiles" );
  87         mkdir( dname, 0700 );
  88         sys_chown( dname, getuid(), getgid() );
  89         chmod( dname, 0700 );
  90         if ( chdir(dname) )
  91                 return( False );
  92         umask( ~(0700) );
  93
  94 #ifdef HAVE_GETRLIMIT
  95 #ifdef RLIMIT_CORE
  96         {
  97                 struct rlimit rlp;
  98                 getrlimit( RLIMIT_CORE, &rlp );
  99                 rlp.rlim_cur = MAX( 4*1024*1024, rlp.rlim_cur );
 100                 setrlimit( RLIMIT_CORE, &rlp );
 101                 getrlimit( RLIMIT_CORE, &rlp );
 102                 DEBUG( 3, ( "Core limits now %d %d\n", (int)rlp.rlim_cur, (int)rlp.rlim_max ) );
 103         }
 104 #endif
 105 #endif
 106
 107         DEBUG(0,("Dumping core in %s\n",dname));
 108         abort();
 109         return( True );
 110 } /* dump_core */
 111 #endif
 112
 113 /**************************************************************************** **
 114  Handle a fault..
 115  **************************************************************************** */
 116
 117 static void fault_quit(void)
 118 {
 119 #if DUMP_CORE
 120         dump_core();
 121 #endif
 122 }
 123
 124 static void winbindd_status(void)
 125 {
 126         struct winbindd_cli_state *tmp;
 127
 128         DEBUG(0, ("winbindd status:\n"));
 129
 130         /* Print client state information */
 131
 132         DEBUG(0, ("\t%d clients currently active\n", num_clients));
 133
 134         if (DEBUGLEVEL >= 2 && num_clients) {
 135                 DEBUG(2, ("\tclient list:\n"));
 136                 for(tmp = client_list; tmp; tmp = tmp->next) {
 137                         DEBUG(2, ("\t\tpid %d, sock %d, rbl %d, wbl %d\n",
 138                                   tmp->pid, tmp->sock, tmp->read_buf_len,
 139                                   tmp->write_buf_len));
 140                 }
 141         }
 142 }
 143
 144 /* Print winbindd status to log file */
 145
 146 static void print_winbindd_status(void)
 147 {
 148         winbindd_status();
 149         winbindd_idmap_status();
 150         winbindd_cm_status();
 151 }
 152
 153 /* Flush client cache */
 154
 155 static void flush_caches(void)
 156 {
 157         /* Clear cached user and group enumation info */
 158         wcache_flush_cache();
 159 }
 160
 161 /* Handle the signal by unlinking socket and exiting */
 162
 163 static void terminate(void)
 164 {
 165         pstring path;
 166
 167         winbindd_idmap_close();
 168
 169         /* Remove socket file */
 170         snprintf(path, sizeof(path), "%s/%s",
 171                  WINBINDD_SOCKET_DIR, WINBINDD_SOCKET_NAME);
 172         unlink(path);
 173         exit(0);
 174 }
 175
 176 static BOOL do_sigterm;
 177
 178 static void termination_handler(int signum)
 179 {
 180         do_sigterm = True;
 181         sys_select_signal();
 182 }
 183
 184 static BOOL do_sigusr2;
 185
 186 static void sigusr2_handler(int signum)
 187 {
 188         do_sigusr2 = True;
 189         sys_select_signal();
 190 }
 191
 192 static BOOL do_sighup;
 193
 194 static void sighup_handler(int signum)
 195 {
 196         do_sighup = True;
 197         sys_select_signal();
 198 }
 199
 200 /* Create winbindd socket */
 201
 202 static int create_sock(void)
 203 {
 204         return create_pipe_sock( WINBINDD_SOCKET_DIR,
 205                                  WINBINDD_SOCKET_NAME, 0755);
 206 }
 207
 208 struct dispatch_table {
 209         enum winbindd_cmd cmd;
 210         enum winbindd_result (*fn)(struct winbindd_cli_state *state);
 211         char *winbindd_cmd_name;
 212 };
 213
 214 static struct dispatch_table dispatch_table[] = {
 215
 216         /* User functions */
 217
 218         { WINBINDD_GETPWNAM, winbindd_getpwnam, "GETPWNAM" },
 219         { WINBINDD_GETPWUID, winbindd_getpwuid, "GETPWUID" },
 220
 221         { WINBINDD_SETPWENT, winbindd_setpwent, "SETPWENT" },
 222         { WINBINDD_ENDPWENT, winbindd_endpwent, "ENDPWENT" },
 223         { WINBINDD_GETPWENT, winbindd_getpwent, "GETPWENT" },
 224
 225         { WINBINDD_GETGROUPS, winbindd_getgroups, "GETGROUPS" },
 226
 227         /* Group functions */
 228
 229         { WINBINDD_GETGRNAM, winbindd_getgrnam, "GETGRNAM" },
 230         { WINBINDD_GETGRGID, winbindd_getgrgid, "GETGRGID" },
 231         { WINBINDD_SETGRENT, winbindd_setgrent, "SETGRENT" },
 232         { WINBINDD_ENDGRENT, winbindd_endgrent, "ENDGRENT" },
 233         { WINBINDD_GETGRENT, winbindd_getgrent, "GETGRENT" },
 234
 235         /* PAM auth functions */
 236
 237         { WINBINDD_PAM_AUTH, winbindd_pam_auth, "PAM_AUTH" },
 238 #ifdef WITH_WINBIND_AUTH_CRAP
 239         { WINBINDD_PAM_AUTH_CRAP, winbindd_pam_auth_crap, "AUTH_CRAP" },
 240 #endif
 241         { WINBINDD_PAM_CHAUTHTOK, winbindd_pam_chauthtok, "CHAUTHTOK" },
 242
 243         /* Enumeration functions */
 244
 245         { WINBINDD_LIST_USERS, winbindd_list_users, "LIST_USERS" },
 246         { WINBINDD_LIST_GROUPS, winbindd_list_groups, "LIST_GROUPS" },
 247         { WINBINDD_LIST_TRUSTDOM, winbindd_list_trusted_domains, "LIST_TRUSTDOM" },
 248         { WINBINDD_SHOW_SEQUENCE, winbindd_show_sequence, "SHOW_SEQUENCE" },
 249
 250         /* SID related functions */
 251
 252         { WINBINDD_LOOKUPSID, winbindd_lookupsid, "LOOKUPSID" },
 253         { WINBINDD_LOOKUPNAME, winbindd_lookupname, "LOOKUPNAME" },
 254
 255         /* Lookup related functions */
 256
 257         { WINBINDD_SID_TO_UID, winbindd_sid_to_uid, "SID_TO_UID" },
 258         { WINBINDD_SID_TO_GID, winbindd_sid_to_gid, "SID_TO_GID" },
 259         { WINBINDD_GID_TO_SID, winbindd_gid_to_sid, "GID_TO_SID" },
 260         { WINBINDD_UID_TO_SID, winbindd_uid_to_sid, "UID_TO_SID" },
 261
 262         /* Miscellaneous */
 263
 264         { WINBINDD_CHECK_MACHACC, winbindd_check_machine_acct, "CHECK_MACHACC" },
 265         { WINBINDD_PING, winbindd_ping, "PING" },
 266         { WINBINDD_INFO, winbindd_info, "INFO" },
 267         { WINBINDD_INTERFACE_VERSION, winbindd_interface_version, "INTERFACE_VERSION" },
 268         { WINBINDD_DOMAIN_NAME, winbindd_domain_name, "DOMAIN_NAME" },
 269
 270         /* WINS functions */
 271
 272         { WINBINDD_WINS_BYNAME, winbindd_wins_byname, "WINS_BYNAME" },
 273         { WINBINDD_WINS_BYIP, winbindd_wins_byip, "WINS_BYIP" },
 274
 275         /* End of list */
 276
 277         { WINBINDD_NUM_CMDS, NULL, "NONE" }
 278 };
 279
 280 static void process_request(struct winbindd_cli_state *state)
 281 {
 282         struct dispatch_table *table = dispatch_table;
 283
 284         /* Free response data - we may be interrupted and receive another
 285            command before being able to send this data off. */
 286
 287         SAFE_FREE(state->response.extra_data);
 288
 289         ZERO_STRUCT(state->response);
 290
 291         state->response.result = WINBINDD_ERROR;
 292         state->response.length = sizeof(struct winbindd_response);
 293
 294         /* Process command */
 295
 296         for (table = dispatch_table; table->fn; table++) {
 297                 if (state->request.cmd == table->cmd) {
 298                         DEBUG(10,("process_request: request fn %s\n", table->winbindd_cmd_name ));
 299                         state->response.result = table->fn(state);
 300                         break;
 301                 }
 302         }
 303
 304         if (!table->fn)
 305                 DEBUG(10,("process_request: unknown request fn number %d\n", (int)state->request.cmd ));
 306
 307         /* In case extra data pointer is NULL */
 308
 309         if (!state->response.extra_data)
 310                 state->response.length = sizeof(struct winbindd_response);
 311 }
 312
 313 /* Process a new connection by adding it to the client connection list */
 314
 315 static void new_connection(int accept_sock)
 316 {
 317         struct sockaddr_un sunaddr;
 318         struct winbindd_cli_state *state;
 319         socklen_t len;
 320         int sock;
 321
 322         /* Accept connection */
 323
 324         len = sizeof(sunaddr);
 325
 326         do {
 327                 sock = accept(accept_sock, (struct sockaddr *)&sunaddr, &len);
 328         } while (sock == -1 && errno == EINTR);
 329
 330         if (sock == -1)
 331                 return;
 332
 333         DEBUG(6,("accepted socket %d\n", sock));
 334
 335         /* Create new connection structure */
 336
 337         if ((state = (struct winbindd_cli_state *)
 338              malloc(sizeof(*state))) == NULL)
 339                 return;
 340
 341         ZERO_STRUCTP(state);
 342         state->sock = sock;
 343
 344         /* Add to connection list */
 345
 346         DLIST_ADD(client_list, state);
 347         num_clients++;
 348 }
 349
 350 /* Remove a client connection from client connection list */
 351
 352 static void remove_client(struct winbindd_cli_state *state)
 353 {
 354         /* It's a dead client - hold a funeral */
 355
 356         if (state != NULL) {
 357
 358                 /* Close socket */
 359
 360                 close(state->sock);
 361
 362                 /* Free any getent state */
 363
 364                 free_getent_state(state->getpwent_state);
 365                 free_getent_state(state->getgrent_state);
 366
 367                 /* We may have some extra data that was not freed if the
 368                    client was killed unexpectedly */
 369
 370                 SAFE_FREE(state->response.extra_data);
 371
 372                 /* Remove from list and free */
 373
 374                 DLIST_REMOVE(client_list, state);
 375                 SAFE_FREE(state);
 376                 num_clients--;
 377         }
 378 }
 379
 380 /* Process a complete received packet from a client */
 381
 382 static void process_packet(struct winbindd_cli_state *state)
 383 {
 384         /* Process request */
 385
 386         state->pid = state->request.pid;
 387
 388         process_request(state);
 389
 390         /* Update client state */
 391
 392         state->read_buf_len = 0;
 393         state->write_buf_len = sizeof(struct winbindd_response);
 394 }
 395
 396 /* Read some data from a client connection */
 397
 398 static void client_read(struct winbindd_cli_state *state)
 399 {
 400         int n;
 401
 402         /* Read data */
 403
 404         do {
 405
 406                 n = read(state->sock, state->read_buf_len +
 407                          (char *)&state->request,
 408                          sizeof(state->request) - state->read_buf_len);
 409
 410         } while (n == -1 && errno == EINTR);
 411
 412         if (n == -1 || n == 0) {
 413                 /* Read failed, kill client */
 414                 DEBUG(5,("read failed on sock %d, pid %d: %s\n",
 415                          state->sock, state->pid,
 416                          (n == -1) ? strerror(errno) : "EOF"));
 417
 418                 state->finished = True;
 419                 return;
 420         }
 421
 422         DEBUG(10,("client_read: read %d bytes. Need %d more for a full request.\n", n, sizeof(state->request) - n - state->read_buf_len ));
 423
 424         /* Update client state */
 425
 426         state->read_buf_len += n;
 427 }
 428
 429 /* Write some data to a client connection */
 430
 431 static void client_write(struct winbindd_cli_state *state)
 432 {
 433         char *data;
 434         int num_written;
 435
 436         /* Write some data */
 437
 438         if (!state->write_extra_data) {
 439
 440                 /* Write response structure */
 441
 442                 data = (char *)&state->response + sizeof(state->response) -
 443                         state->write_buf_len;
 444
 445         } else {
 446
 447                 /* Write extra data */
 448
 449                 data = (char *)state->response.extra_data +
 450                         state->response.length -
 451                         sizeof(struct winbindd_response) -
 452                         state->write_buf_len;
 453         }
 454
 455         do {
 456                 num_written = write(state->sock, data, state->write_buf_len);
 457         } while (num_written == -1 && errno == EINTR);
 458
 459         DEBUG(10,("client_write: wrote %d bytes.\n", num_written ));
 460
 461         /* Write failed, kill cilent */
 462
 463         if (num_written == -1 || num_written == 0) {
 464
 465                 DEBUG(3,("write failed on sock %d, pid %d: %s\n",
 466                          state->sock, state->pid,
 467                          (num_written == -1) ? strerror(errno) : "EOF"));
 468
 469                 state->finished = True;
 470
 471                 SAFE_FREE(state->response.extra_data);
 472
 473                 return;
 474         }
 475
 476         /* Update client state */
 477
 478         state->write_buf_len -= num_written;
 479
 480         /* Have we written all data? */
 481
 482         if (state->write_buf_len == 0) {
 483
 484                 /* Take care of extra data */
 485
 486                 if (state->write_extra_data) {
 487
 488                         SAFE_FREE(state->response.extra_data);
 489
 490                         state->write_extra_data = False;
 491
 492                         DEBUG(10,("client_write: client_write: complete response written.\n"));
 493
 494                 } else if (state->response.length >
 495                            sizeof(struct winbindd_response)) {
 496
 497                         /* Start writing extra data */
 498
 499                         state->write_buf_len =
 500                                 state->response.length -
 501                                 sizeof(struct winbindd_response);
 502
 503                         DEBUG(10,("client_write: need to write %d extra data bytes.\n", (int)state->write_buf_len));
 504
 505                         state->write_extra_data = True;
 506                 }
 507         }
 508 }
 509
 510 /* Process incoming clients on accept_sock.  We use a tricky non-blocking,
 511    non-forking, non-threaded model which allows us to handle many
 512    simultaneous connections while remaining impervious to many denial of
 513    service attacks. */
 514
 515 static void process_loop(int accept_sock)
 516 {
 517         /* We'll be doing this a lot */
 518
 519         while (1) {
 520                 struct winbindd_cli_state *state;
 521                 fd_set r_fds, w_fds;
 522                 int maxfd = accept_sock, selret;
 523                 struct timeval timeout;
 524
 525                 /* Handle messages */
 526
 527                 message_dispatch();
 528
 529                 /* Free up temporary memory */
 530
 531                 lp_talloc_free();
 532                 main_loop_talloc_free();
 533
 534                 /* Initialise fd lists for select() */
 535
 536                 FD_ZERO(&r_fds);
 537                 FD_ZERO(&w_fds);
 538                 FD_SET(accept_sock, &r_fds);
 539
 540                 timeout.tv_sec = WINBINDD_ESTABLISH_LOOP;
 541                 timeout.tv_usec = 0;
 542
 543                 /* Set up client readers and writers */
 544
 545                 state = client_list;
 546
 547                 while (state) {
 548
 549                         /* Dispose of client connection if it is marked as
 550                            finished */
 551
 552                         if (state->finished) {
 553                                 struct winbindd_cli_state *next = state->next;
 554
 555                                 remove_client(state);
 556                                 state = next;
 557                                 continue;
 558                         }
 559
 560                         /* Select requires we know the highest fd used */
 561
 562                         if (state->sock > maxfd)
 563                                 maxfd = state->sock;
 564
 565                         /* Add fd for reading */
 566
 567                         if (state->read_buf_len != sizeof(state->request))
 568                                 FD_SET(state->sock, &r_fds);
 569
 570                         /* Add fd for writing */
 571
 572                         if (state->write_buf_len)
 573                                 FD_SET(state->sock, &w_fds);
 574
 575                         state = state->next;
 576                 }
 577
 578                 /* Call select */
 579
 580                 selret = sys_select(maxfd + 1, &r_fds, &w_fds, NULL, &timeout);
 581
 582                 if (selret == 0)
 583                         continue;
 584
 585                 if ((selret == -1 && errno != EINTR) || selret == 0) {
 586
 587                         /* Select error, something is badly wrong */
 588
 589                         perror("select");
 590                         exit(1);
 591                 }
 592
 593                 /* Create a new connection if accept_sock readable */
 594
 595                 if (selret > 0) {
 596
 597                         if (FD_ISSET(accept_sock, &r_fds))
 598                                 new_connection(accept_sock);
 599
 600                         /* Process activity on client connections */
 601
 602                         for (state = client_list; state; state = state->next) {
 603
 604                                 /* Data available for reading */
 605
 606                                 if (FD_ISSET(state->sock, &r_fds)) {
 607
 608                                         /* Read data */
 609
 610                                         client_read(state);
 611
 612                                         /*
 613                                          * If we have the start of a
 614                                          * packet, then check the
 615                                          * length field to make sure
 616                                          * the client's not talking
 617                                          * Mock Swedish.
 618                                          */
 619
 620                                         if (state->read_buf_len >= sizeof(uint32)
 621                                             && *(uint32 *) &state->request != sizeof(state->request)) {
 622                                                 DEBUG(0,("process_loop: Invalid request size (%d) send, should be (%d)\n",
 623                                                                 *(uint32 *) &state->request, sizeof(state->request)));
 624
 625                                                 remove_client(state);
 626                                                 break;
 627                                         }
 628
 629                                         /* A request packet might be
 630                                            complete */
 631
 632                                         if (state->read_buf_len ==
 633                                             sizeof(state->request)) {
 634                                                 process_packet(state);
 635                                         }
 636                                 }
 637
 638                                 /* Data available for writing */
 639
 640                                 if (FD_ISSET(state->sock, &w_fds))
 641                                         client_write(state);
 642                         }
 643                 }
 644
 645 #if 0
 646                 winbindd_check_cache_size(time(NULL));
 647 #endif
 648
 649                 /* Check signal handling things */
 650
 651                 if (do_sigterm)
 652                         terminate();
 653
 654                 if (do_sighup) {
 655
 656                         /* Flush winbindd cache */
 657
 658                         flush_caches();
 659                         reload_services_file(True);
 660                         do_sighup = False;
 661                 }
 662
 663                 if (do_sigusr2) {
 664                         print_winbindd_status();
 665                         do_sigusr2 = False;
 666                 }
 667         }
 668 }
 669
 670 /* Main function */
 671
 672 struct winbindd_state server_state;   /* Server state information */
 673
 674
 675 static void usage(void)
 676 {
 677         printf("Usage: winbindd [options]\n");
 678         printf("\t-i                interactive mode\n");
 679         printf("\t-n                disable cacheing\n");
 680         printf("\t-d level          set debug level\n");
 681         printf("\t-s configfile     choose smb.conf location\n");
 682         printf("\t-h                show this help message\n");
 683 }
 684
 685 int main(int argc, char **argv)
 686 {
 687         extern BOOL AllowDebugChange;
 688         extern pstring global_myname;
 689         extern fstring global_myworkgroup;
 690         extern BOOL append_log;
 691         pstring logfile;
 692         int accept_sock;
 693         BOOL interactive = False;
 694         int opt;
 695
 696         /* glibc (?) likes to print "User defined signal 1" and exit if a
 697            SIGUSR[12] is received before a handler is installed */
 698
 699         CatchSignal(SIGUSR1, SIG_IGN);
 700         CatchSignal(SIGUSR2, SIG_IGN);
 701
 702         TimeInit();
 703
 704         charset_initialise(); /* For *&#^%'s sake don't remove this */
 705
 706         fault_setup((void (*)(void *))fault_quit );
 707
 708         /* Initialise for running in non-root mode */
 709
 710         sec_init();
 711
 712         /* Set environment variable so we don't recursively call ourselves.
 713            This may also be useful interactively. */
 714
 715         SETENV(WINBINDD_DONT_ENV, "1", 1);
 716
 717         /* Initialise samba/rpc client stuff */
 718
 719         while ((opt = getopt(argc, argv, "id:s:nh")) != EOF) {
 720                 switch (opt) {
 721
 722                         /* Don't become a daemon */
 723                 case 'i':
 724                         interactive = True;
 725                         break;
 726
 727                         /* disable cacheing */
 728                 case 'n':
 729                         opt_nocache = True;
 730                         break;
 731
 732                         /* Run with specified debug level */
 733                 case 'd':
 734                         DEBUGLEVEL = atoi(optarg);
 735                         AllowDebugChange = False;
 736                         break;
 737
 738                         /* Load a different smb.conf file */
 739                 case 's':
 740                         pstrcpy(servicesf,optarg);
 741                         break;
 742
 743                 case 'h':
 744                         usage();
 745                         exit(0);
 746
 747                 default:
 748                         printf("Unknown option %c\n", (char)opt);
 749                         exit(1);
 750                 }
 751         }
 752
 753         /* Append to log file by default as we are a single process daemon
 754            program. */
 755
 756         append_log = True;
 757
 758         snprintf(logfile, sizeof(logfile), "%s/log.winbindd", LOGFILEBASE);
 759         lp_set_logfile(logfile);
 760
 761         setup_logging("winbindd", interactive);
 762         if (!reopen_logs()) {
 763                 fprintf(stderr, "Could not open logfile: %s\n", logfile);
 764                 fprintf(stderr, "Continuing in the hope that that is OK\n");
 765         }
 766
 767         DEBUG(1, ("winbindd version %s started.\n", VERSION ) );
 768         DEBUGADD( 1, ( "Copyright The Samba Team 2000-2001\n" ) );
 769
 770         if (!reload_services_file(False)) {
 771                 DEBUG(0, ("error opening config file\n"));
 772                 exit(1);
 773         }
 774
 775         codepage_initialise(lp_client_code_page());
 776
 777         /* Setup names. */
 778
 779         if (!*global_myname) {
 780                 char *p;
 781
 782                 fstrcpy(global_myname, myhostname());
 783                 p = strchr(global_myname, '.');
 784                 if (p)
 785                         *p = 0;
 786         }
 787
 788         fstrcpy(global_myworkgroup, lp_workgroup());
 789
 790         if (!interactive) {
 791                 become_daemon();
 792                 pidfile_create("winbindd");
 793         }
 794
 795
 796 #if HAVE_SETPGID
 797         /*
 798          * If we're interactive we want to set our own process group for
 799          * signal management.
 800          */
 801         if (interactive)
 802                 setpgid( (pid_t)0, (pid_t)0);
 803 #endif
 804
 805         load_interfaces();
 806
 807         if (!secrets_init()) {
 808
 809                 DEBUG(0,("Could not initialize domain trust account secrets. Giving up\n"));
 810                 return 1;
 811
 812         }
 813
 814         /* Get list of domains we look up requests for.  This includes the
 815            domain which we are a member of as well as any trusted
 816            domains. */
 817
 818         init_domain_list();
 819
 820         ZERO_STRUCT(server_state);
 821
 822         /* Winbind daemon initialisation */
 823
 824         if (!winbindd_param_init())
 825                 return 1;
 826
 827         if (!winbindd_idmap_init())
 828                 return 1;
 829
 830         /* Unblock all signals we are interested in as they may have been
 831            blocked by the parent process. */
 832
 833         BlockSignals(False, SIGINT);
 834         BlockSignals(False, SIGQUIT);
 835         BlockSignals(False, SIGTERM);
 836         BlockSignals(False, SIGUSR1);
 837         BlockSignals(False, SIGUSR2);
 838         BlockSignals(False, SIGHUP);
 839
 840         /* Setup signal handlers */
 841
 842         CatchSignal(SIGINT, termination_handler);      /* Exit on these sigs */
 843         CatchSignal(SIGQUIT, termination_handler);
 844         CatchSignal(SIGTERM, termination_handler);
 845
 846         CatchSignal(SIGPIPE, SIG_IGN);                 /* Ignore sigpipe */
 847
 848         CatchSignal(SIGUSR2, sigusr2_handler);         /* Debugging sigs */
 849         CatchSignal(SIGHUP, sighup_handler);
 850
 851         /* Initialise messaging system */
 852
 853         if (!message_init()) {
 854                 DEBUG(0, ("unable to initialise messaging system\n"));
 855                 exit(1);
 856         }
 857
 858         /* Create UNIX domain socket */
 859
 860         if ((accept_sock = create_sock()) == -1) {
 861                 DEBUG(0, ("failed to create socket\n"));
 862                 return 1;
 863         }
 864
 865         /* Loop waiting for requests */
 866
 867         process_loop(accept_sock);
 868
 869 #if 0
 870         uni_group_cache_shutdown();
 871 #endif
 872
 873         return 0;
 874 }