git.sur5r.net Git - openldap/blob - servers/slapd/main.c

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 #include "portable.h"
   7
   8 #include <stdio.h>
   9
  10 #include <ac/signal.h>
  11 #include <ac/socket.h>
  12 #include <ac/string.h>
  13 #include <ac/time.h>
  14 #include <ac/unistd.h>
  15 #include <ac/wait.h>
  16 #include <ac/errno.h>
  17
  18 #include "ldap_pvt.h"
  19
  20 #include "slap.h"
  21 #include "lutil.h"
  22 #include "ldif.h"
  23
  24 #ifdef LDAP_SIGCHLD
  25 static RETSIGTYPE wait4child( int sig );
  26 #endif
  27
  28 #ifdef HAVE_NT_SERVICE_MANAGER
  29 #define MAIN_RETURN(x) return
  30 static struct sockaddr_in       bind_addr;
  31
  32 void CommenceStartupProcessing( LPCTSTR serverName,
  33                                                            void(*stopper)(int));
  34 void ReportSlapdShutdownComplete( void );
  35 void *getRegParam( char *svc, char *value );
  36
  37 #define SERVICE_EXIT( e, n )    do { \
  38         if ( is_NT_Service ) { \
  39                 SLAPDServiceStatus.dwWin32ExitCode                              = (e); \
  40                 SLAPDServiceStatus.dwServiceSpecificExitCode    = (n); \
  41         } \
  42 } while ( 0 )
  43
  44 #else
  45 #define SERVICE_EXIT( e, n )
  46 #define MAIN_RETURN(x) return(x)
  47 #endif
  48
  49 #ifdef HAVE_NT_EVENT_LOG
  50 void LogSlapdStartedEvent( char *svc, int slap_debug, char *configfile, char *urls );
  51 void LogSlapdStoppedEvent( char *svc );
  52 #endif
  53
  54 /*
  55  * when more than one slapd is running on one machine, each one might have
  56  * it's own LOCAL for syslogging and must have its own pid/args files
  57  */
  58
  59 #ifndef HAVE_MKVERSION
  60 const char Versionstr[] =
  61         OPENLDAP_PACKAGE " " OPENLDAP_VERSION " Standalone LDAP Server (slapd)";
  62 #endif
  63
  64 #ifdef LOG_LOCAL4
  65
  66 #define DEFAULT_SYSLOG_USER  LOG_LOCAL4
  67
  68 typedef struct _str2intDispatch {
  69         char    *stringVal;
  70         int      abbr;
  71         int      intVal;
  72 } STRDISP, *STRDISP_P;
  73
  74
  75 /* table to compute syslog-options to integer */
  76 static STRDISP  syslog_types[] = {
  77         { "LOCAL0", sizeof("LOCAL0"), LOG_LOCAL0 },
  78         { "LOCAL1", sizeof("LOCAL1"), LOG_LOCAL1 },
  79         { "LOCAL2", sizeof("LOCAL2"), LOG_LOCAL2 },
  80         { "LOCAL3", sizeof("LOCAL3"), LOG_LOCAL3 },
  81         { "LOCAL4", sizeof("LOCAL4"), LOG_LOCAL4 },
  82         { "LOCAL5", sizeof("LOCAL5"), LOG_LOCAL5 },
  83         { "LOCAL6", sizeof("LOCAL6"), LOG_LOCAL6 },
  84         { "LOCAL7", sizeof("LOCAL7"), LOG_LOCAL7 },
  85         { NULL }
  86 };
  87
  88 static int   cnvt_str2int( char *, STRDISP_P, int );
  89
  90 #endif  /* LOG_LOCAL4 */
  91
  92
  93 static void
  94 usage( char *name )
  95 {
  96         fprintf( stderr,
  97                 "usage: %s options\n", name );
  98         fprintf( stderr,
  99                 "\t-d level\tDebug Level" "\n"
 100                 "\t-f filename\tConfiguration File\n"
 101 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 102                 "\t-g group\tGroup (id or name) to ran as\n"
 103 #endif
 104                 "\t-h URLs\tList of URLs to serve\n"
 105 #ifdef LOG_LOCAL4
 106                 "\t-l sysloguser\tSyslog User (default: LOCAL4)\n"
 107 #endif
 108                 "\t-n serverName\tservice name\n"
 109 #ifdef HAVE_CHROOT
 110                 "\t-r directory\n"
 111 #endif
 112                 "\t-s level\tSyslog Level\n"
 113 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 114                 "\t-u user\tUser (id or name) to ran as\n"
 115 #endif
 116     );
 117 }
 118
 119 #ifdef HAVE_NT_SERVICE_MANAGER
 120 void WINAPI ServiceMain( DWORD argc, LPTSTR *argv )
 121 #else
 122 int main( int argc, char **argv )
 123 #endif
 124 {
 125         int             i, no_detach = 0;
 126         int             rc = 1;
 127         char *urls = NULL;
 128 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 129         char *username = NULL;
 130         char *groupname = NULL;
 131 #endif
 132 #if defined(HAVE_CHROOT)
 133         char *sandbox = NULL;
 134 #endif
 135 #ifdef LOG_LOCAL4
 136     int     syslogUser = DEFAULT_SYSLOG_USER;
 137 #endif
 138
 139         int g_argc = argc;
 140         char **g_argv = argv;
 141
 142 #ifdef HAVE_NT_SERVICE_MANAGER
 143         char            *configfile = ".\\slapd.conf";
 144 #else
 145         char            *configfile = SLAPD_DEFAULT_CONFIGFILE;
 146 #endif
 147         char        *serverName = NULL;
 148         int         serverMode = SLAP_SERVER_MODE;
 149
 150 #ifdef CSRIMALLOC
 151         FILE *leakfile;
 152         if( ( leakfile = fopen( "slapd.leak", "w" )) == NULL ) {
 153                 leakfile = stderr;
 154         }
 155 #endif
 156
 157
 158 #ifdef HAVE_NT_SERVICE_MANAGER
 159         {
 160                 int *i;
 161                 char *newConfigFile;
 162                 char *newUrls;
 163                 char *regService = NULL;
 164
 165                 if ( is_NT_Service ) {
 166                         serverName = argv[0];
 167                         CommenceStartupProcessing( serverName, slap_sig_shutdown );
 168                         if ( strcmp(serverName, SERVICE_NAME) )
 169                             regService = serverName;
 170                 }
 171
 172                 i = (int*)getRegParam( regService, "DebugLevel" );
 173                 if ( i != NULL )
 174                 {
 175                         slap_debug = *i;
 176 #ifdef NEW_LOGGING
 177                         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 178                                    "main: new debug level from registry is: %d\n", slap_debug ));
 179 #else
 180                         Debug( LDAP_DEBUG_ANY, "new debug level from registry is: %d\n", slap_debug, 0, 0 );
 181 #endif
 182                 }
 183
 184                 newUrls = (char *) getRegParam(regService, "Urls");
 185                 if (newUrls)
 186                 {
 187                     if (urls)
 188                         ch_free(urls);
 189
 190                     urls = ch_strdup(newUrls);
 191 #ifdef NEW_LOGGING
 192                     LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 193                                "main: new urls from registry: %s\n", urls ));
 194 #else
 195                     Debug(LDAP_DEBUG_ANY, "new urls from registry: %s\n",
 196                           urls, 0, 0);
 197 #endif
 198
 199                 }
 200
 201                 newConfigFile = (char*)getRegParam( regService, "ConfigFile" );
 202                 if ( newConfigFile != NULL )
 203                 {
 204                         configfile = newConfigFile;
 205 #ifdef NEW_LOGGING
 206                         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 207                                    "main: new config file from registry is: %s\n", configfile ));
 208 #else
 209                         Debug ( LDAP_DEBUG_ANY, "new config file from registry is: %s\n", configfile, 0, 0 );
 210 #endif
 211
 212                 }
 213         }
 214 #endif
 215
 216         while ( (i = getopt( argc, argv,
 217                              "d:f:h:s:n:"
 218 #ifdef HAVE_CHROOT
 219                                 "r:"
 220 #endif
 221 #ifdef LOG_LOCAL4
 222                              "l:"
 223 #endif
 224 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 225                              "u:g:"
 226 #endif
 227                              )) != EOF ) {
 228                 switch ( i ) {
 229                 case 'h':       /* listen URLs */
 230                         if ( urls != NULL ) free( urls );
 231                         urls = ch_strdup( optarg );
 232             break;
 233
 234                 case 'd':       /* set debug level and 'do not detach' flag */
 235                         no_detach = 1;
 236 #ifdef LDAP_DEBUG
 237                         slap_debug |= atoi( optarg );
 238 #else
 239                         if ( atoi( optarg ) != 0 )
 240                                 fputs( "must compile with LDAP_DEBUG for debugging\n",
 241                                        stderr );
 242 #endif
 243                         break;
 244
 245                 case 'f':       /* read config file */
 246                         configfile = ch_strdup( optarg );
 247                         break;
 248
 249                 case 's':       /* set syslog level */
 250                         ldap_syslog = atoi( optarg );
 251                         break;
 252
 253 #ifdef LOG_LOCAL4
 254                 case 'l':       /* set syslog local user */
 255                         syslogUser = cnvt_str2int( optarg,
 256                                 syslog_types, DEFAULT_SYSLOG_USER );
 257                         break;
 258 #endif
 259
 260 #ifdef HAVE_CHROOT
 261                 case 'r':
 262                         if( sandbox ) free(sandbox);
 263                         sandbox = ch_strdup( optarg );
 264                         break;
 265 #endif
 266
 267 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 268                 case 'u':       /* user name */
 269                         if( username ) free(username);
 270                         username = ch_strdup( optarg );
 271                         break;
 272
 273                 case 'g':       /* group name */
 274                         if( groupname ) free(groupname);
 275                         groupname = ch_strdup( optarg );
 276                         break;
 277 #endif /* SETUID && GETUID */
 278
 279                 case 'n':  /* NT service name */
 280                         if( serverName != NULL ) free( serverName );
 281                         serverName = ch_strdup( optarg );
 282                         break;
 283
 284                 default:
 285                         usage( argv[0] );
 286                         rc = 1;
 287                         SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 15 );
 288                         goto stop;
 289                 }
 290         }
 291
 292 #ifdef NEW_LOGGING
 293         lutil_log_initialize( argc, argv );
 294 #endif
 295
 296         lutil_set_debug_level( "slapd", slap_debug );
 297         ber_set_option(NULL, LBER_OPT_DEBUG_LEVEL, &slap_debug);
 298         ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &slap_debug);
 299         ldif_debug = slap_debug;
 300
 301 #ifdef NEW_LOGGING
 302         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 303                    "%s", Versionstr ));
 304 #else
 305         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 306 #endif
 307
 308
 309         if( serverName == NULL ) {
 310                 if ( (serverName = strrchr( argv[0], *LDAP_DIRSEP )) == NULL ) {
 311                         serverName = argv[0];
 312                 } else {
 313                         serverName = serverName + 1;
 314                 }
 315         }
 316
 317 #ifdef LOG_LOCAL4
 318         openlog( serverName, OPENLOG_OPTIONS, syslogUser );
 319 #elif LOG_DEBUG
 320         openlog( serverName, OPENLOG_OPTIONS );
 321 #endif
 322
 323         if( slapd_daemon_init( urls ) != 0 ) {
 324                 rc = 1;
 325                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 16 );
 326                 goto stop;
 327         }
 328
 329 #if defined(HAVE_CHROOT)
 330         if ( sandbox ) {
 331                 if ( chdir( sandbox ) ) {
 332                         perror("chdir");
 333                         rc = 1;
 334                         goto stop;
 335                 }
 336                 if ( chroot( sandbox ) ) {
 337                         perror("chroot");
 338                         rc = 1;
 339                         goto stop;
 340                 }
 341         }
 342 #endif
 343
 344 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 345         if ( username != NULL || groupname != NULL ) {
 346                 slap_init_user( username, groupname );
 347         }
 348 #endif
 349
 350         extops_init();
 351
 352 #ifdef SLAPD_MODULES
 353         if ( module_init() != 0 ) {
 354                 rc = 1;
 355                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 17 );
 356                 goto destroy;
 357         }
 358 #endif
 359
 360         if ( slap_init( serverMode, serverName ) != 0 ) {
 361                 rc = 1;
 362                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 18 );
 363                 goto destroy;
 364         }
 365
 366         if ( schema_init( ) != 0 ) {
 367 #ifdef NEW_LOGGING
 368                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 369                            "main: schema initialization error\n" ));
 370 #else
 371                 Debug( LDAP_DEBUG_ANY,
 372                     "schema initialization error\n",
 373                     0, 0, 0 );
 374 #endif
 375
 376                 goto destroy;
 377         }
 378
 379         if ( read_config( configfile ) != 0 ) {
 380                 rc = 1;
 381                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 19 );
 382                 goto destroy;
 383         }
 384
 385         if ( glue_sub_init( ) != 0 ) {
 386 #ifdef NEW_LOGGING
 387                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 388                            "main: subordinate config error\n"));
 389 #else
 390                 Debug( LDAP_DEBUG_ANY,
 391                     "subordinate config error\n",
 392                     0, 0, 0 );
 393 #endif
 394                 goto destroy;
 395         }
 396
 397         if ( schema_prep( ) != 0 ) {
 398 #ifdef NEW_LOGGING
 399                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 400                            "main: schema prep error\n"));
 401 #else
 402                 Debug( LDAP_DEBUG_ANY,
 403                     "schema prep error\n",
 404                     0, 0, 0 );
 405 #endif
 406
 407                 goto destroy;
 408         }
 409
 410 #ifdef HAVE_TLS
 411         rc = ldap_pvt_tls_init();
 412         if( rc != 0) {
 413 #ifdef NEW_LOGGING
 414                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 415                            "main: tls init failed: %d\n", rc ));
 416 #else
 417                 Debug( LDAP_DEBUG_ANY,
 418                     "main: TLS init failed: %d\n",
 419                     0, 0, 0 );
 420 #endif
 421                 rc = 1;
 422                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 423                 goto destroy;
 424         }
 425
 426         rc = ldap_pvt_tls_init_def_ctx();
 427         if( rc != 0) {
 428 #ifdef NEW_LOGGING
 429                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 430                            "main: tls init def ctx failed: %d\n", rc ));
 431 #else
 432                 Debug( LDAP_DEBUG_ANY,
 433                     "main: TLS init def ctx failed: %d\n",
 434                     0, 0, 0 );
 435 #endif
 436                 rc = 1;
 437                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 438                 goto destroy;
 439         }
 440 #endif
 441
 442         (void) SIGNAL( LDAP_SIGUSR1, slap_sig_wake );
 443         (void) SIGNAL( LDAP_SIGUSR2, slap_sig_shutdown );
 444
 445 #ifdef SIGPIPE
 446         (void) SIGNAL( SIGPIPE, SIG_IGN );
 447 #endif
 448 #ifdef SIGHUP
 449         (void) SIGNAL( SIGHUP, slap_sig_shutdown );
 450 #endif
 451         (void) SIGNAL( SIGINT, slap_sig_shutdown );
 452         (void) SIGNAL( SIGTERM, slap_sig_shutdown );
 453 #ifdef LDAP_SIGCHLD
 454         (void) SIGNAL( LDAP_SIGCHLD, wait4child );
 455 #endif
 456 #ifdef SIGBREAK
 457         /* SIGBREAK is generated when Ctrl-Break is pressed. */
 458         (void) SIGNAL( SIGBREAK, slap_sig_shutdown );
 459 #endif
 460
 461 #ifndef HAVE_WINSOCK
 462         lutil_detach( no_detach, 0 );
 463 #endif /* HAVE_WINSOCK */
 464
 465 #ifdef CSRIMALLOC
 466         mal_leaktrace(1);
 467 #endif
 468
 469         if ( slap_startup( NULL )  != 0 ) {
 470                 rc = 1;
 471                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 21 );
 472                 goto shutdown;
 473         }
 474
 475         {
 476                 FILE *fp;
 477
 478 #ifdef NEW_LOGGING
 479                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 480                            "main: slapd starting.\n" ));
 481 #else
 482                 Debug( LDAP_DEBUG_ANY, "slapd starting\n", 0, 0, 0 );
 483 #endif
 484
 485
 486                 if (( slapd_pid_file != NULL ) &&
 487                         (( fp = fopen( slapd_pid_file, "w" )) != NULL ))
 488                 {
 489                         fprintf( fp, "%d\n", (int) getpid() );
 490                         fclose( fp );
 491                 }
 492
 493                 if (( slapd_args_file != NULL ) &&
 494                         (( fp = fopen( slapd_args_file, "w" )) != NULL ))
 495                 {
 496                         for ( i = 0; i < g_argc; i++ ) {
 497                                 fprintf( fp, "%s ", g_argv[i] );
 498                         }
 499                         fprintf( fp, "\n" );
 500                         fclose( fp );
 501                 }
 502         }
 503
 504 #ifdef HAVE_NT_EVENT_LOG
 505         if (is_NT_Service)
 506         LogSlapdStartedEvent( serverName, slap_debug, configfile, urls );
 507 #endif
 508
 509         rc = slapd_daemon();
 510
 511 #ifdef HAVE_NT_SERVICE_MANAGER
 512         /* Throw away the event that we used during the startup process. */
 513         if ( is_NT_Service )
 514                 ldap_pvt_thread_cond_destroy( &started_event );
 515 #endif
 516
 517 shutdown:
 518         /* remember an error during shutdown */
 519         rc |= slap_shutdown( NULL );
 520
 521 destroy:
 522         /* remember an error during destroy */
 523         rc |= slap_destroy();
 524
 525 #ifdef SLAPD_MODULES
 526         module_kill();
 527 #endif
 528
 529         extops_kill();
 530
 531 stop:
 532 #ifdef HAVE_NT_EVENT_LOG
 533         if (is_NT_Service)
 534         LogSlapdStoppedEvent( serverName );
 535 #endif
 536
 537 #ifdef NEW_LOGGING
 538         LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 539                    "main: slapd stopped.\n" ));
 540 #else
 541         Debug( LDAP_DEBUG_ANY, "slapd stopped.\n", 0, 0, 0 );
 542 #endif
 543
 544
 545 #ifdef HAVE_NT_SERVICE_MANAGER
 546         ReportSlapdShutdownComplete();
 547 #endif
 548
 549 #ifdef LOG_DEBUG
 550     closelog();
 551 #endif
 552         slapd_daemon_destroy();
 553
 554         schema_destroy();
 555
 556 #ifdef HAVE_TLS
 557         ldap_pvt_tls_destroy();
 558 #endif
 559
 560         config_destroy();
 561
 562 #ifdef CSRIMALLOC
 563         mal_dumpleaktrace( leakfile );
 564 #endif
 565
 566         MAIN_RETURN(rc);
 567 }
 568
 569
 570 #ifdef LDAP_SIGCHLD
 571
 572 /*
 573  *  Catch and discard terminated child processes, to avoid zombies.
 574  */
 575
 576 static RETSIGTYPE
 577 wait4child( int sig )
 578 {
 579     int save_errno = errno;
 580
 581 #ifdef WNOHANG
 582     errno = 0;
 583 #ifdef HAVE_WAITPID
 584     while ( waitpid( (pid_t)-1, NULL, WNOHANG ) > 0 || errno == EINTR )
 585         ;       /* NULL */
 586 #else
 587     while ( wait3( NULL, WNOHANG, NULL ) > 0 || errno == EINTR )
 588         ;       /* NULL */
 589 #endif
 590 #else
 591     (void) wait( NULL );
 592 #endif
 593     (void) SIGNAL_REINSTALL( sig, wait4child );
 594     errno = save_errno;
 595 }
 596
 597 #endif /* SIGCHLD || SIGCLD */
 598
 599
 600 #ifdef LOG_LOCAL4
 601
 602 /*
 603  *  Convert a string to an integer by means of a dispatcher table
 604  *  if the string is not in the table return the default
 605  */
 606
 607 static int
 608 cnvt_str2int( char *stringVal, STRDISP_P dispatcher, int defaultVal )
 609 {
 610     int        retVal = defaultVal;
 611     STRDISP_P  disp;
 612
 613     for (disp = dispatcher; disp->stringVal; disp++) {
 614
 615         if (!strncasecmp (stringVal, disp->stringVal, disp->abbr)) {
 616
 617             retVal = disp->intVal;
 618             break;
 619
 620         }
 621     }
 622
 623     return (retVal);
 624 }
 625
 626 #endif  /* LOG_LOCAL4 */