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