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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2000 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 /* I guess this should be declared in ldap_pvt.h */
  25 extern int ldap_pvt_tls_init_def_ctx( void );
  26
  27 #ifdef LDAP_SIGCHLD
  28 static RETSIGTYPE wait4child( int sig );
  29 #endif
  30
  31 #ifdef HAVE_NT_SERVICE_MANAGER
  32 #define MAIN_RETURN(x) return
  33 struct sockaddr_in      bind_addr;
  34
  35 /* in nt_main.c */
  36 LDAP_LUTIL_V(SERVICE_STATUS)            SLAPDServiceStatus;
  37 LDAP_LUTIL_V(SERVICE_STATUS_HANDLE)     hSLAPDServiceStatus;
  38 extern ldap_pvt_thread_cond_t   started_event,          stopped_event;
  39 extern int        is_NT_Service;
  40
  41 void CommenceStartupProcessing( LPCTSTR serverName,
  42                                                            void(*stopper)(int));
  43 void ReportSlapdShutdownComplete( void );
  44 void *getRegParam( char *svc, char *value );
  45
  46 #define SERVICE_EXIT( e, n )    do { \
  47         if ( is_NT_Service ) { \
  48                 SLAPDServiceStatus.dwWin32ExitCode                              = (e); \
  49                 SLAPDServiceStatus.dwServiceSpecificExitCode    = (n); \
  50         } \
  51 } while ( 0 )
  52
  53 #else
  54 #define SERVICE_EXIT( e, n )
  55 #define MAIN_RETURN(x) return(x)
  56 #endif
  57
  58 #ifdef HAVE_NT_EVENT_LOG
  59 void LogSlapdStartedEvent( char *svc, int slap_debug, char *configfile, char *urls );
  60 void LogSlapdStoppedEvent( char *svc );
  61 #endif
  62
  63 /*
  64  * when more than one slapd is running on one machine, each one might have
  65  * it's own LOCAL for syslogging and must have its own pid/args files
  66  */
  67
  68 #ifndef HAVE_MKVERSION
  69 const char Versionstr[] =
  70         OPENLDAP_PACKAGE " " OPENLDAP_VERSION " Standalone LDAP Server (slapd)";
  71 #endif
  72
  73 #ifdef LOG_LOCAL4
  74
  75 #define DEFAULT_SYSLOG_USER  LOG_LOCAL4
  76
  77 typedef struct _str2intDispatch {
  78         char    *stringVal;
  79         int      abbr;
  80         int      intVal;
  81 } STRDISP, *STRDISP_P;
  82
  83
  84 /* table to compute syslog-options to integer */
  85 static STRDISP  syslog_types[] = {
  86         { "LOCAL0", sizeof("LOCAL0"), LOG_LOCAL0 },
  87         { "LOCAL1", sizeof("LOCAL1"), LOG_LOCAL1 },
  88         { "LOCAL2", sizeof("LOCAL2"), LOG_LOCAL2 },
  89         { "LOCAL3", sizeof("LOCAL3"), LOG_LOCAL3 },
  90         { "LOCAL4", sizeof("LOCAL4"), LOG_LOCAL4 },
  91         { "LOCAL5", sizeof("LOCAL5"), LOG_LOCAL5 },
  92         { "LOCAL6", sizeof("LOCAL6"), LOG_LOCAL6 },
  93         { "LOCAL7", sizeof("LOCAL7"), LOG_LOCAL7 },
  94         { NULL }
  95 };
  96
  97 static int   cnvt_str2int( char *, STRDISP_P, int );
  98
  99 #endif  /* LOG_LOCAL4 */
 100
 101
 102 static void
 103 usage( char *name )
 104 {
 105         fprintf( stderr,
 106                 "usage: %s options\n", name );
 107         fprintf( stderr,
 108                 "\t-d level\tDebug Level" "\n"
 109                 "\t-f filename\tConfiguration File\n"
 110 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 111                 "\t-g group\tGroup (id or name) to ran as\n"
 112 #endif
 113                 "\t-h URLs\tList of URLs to serve\n"
 114 #ifdef LOG_LOCAL4
 115                 "\t-l sysloguser\tSyslog User (default: LOCAL4)\n"
 116 #endif
 117                 "\t-n serverName\tservice name\n"
 118 #ifdef HAVE_CHROOT
 119                 "\t-r directory\n"
 120 #endif
 121                 "\t-s level\tSyslog Level\n"
 122 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 123                 "\t-u user\tUser (id or name) to ran as\n"
 124 #endif
 125     );
 126 }
 127
 128 #ifdef HAVE_NT_SERVICE_MANAGER
 129 void WINAPI ServiceMain( DWORD argc, LPTSTR *argv )
 130 #else
 131 int main( int argc, char **argv )
 132 #endif
 133 {
 134         int             i, no_detach = 0;
 135         int             rc = 1;
 136         char *urls = NULL;
 137 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 138         char *username = NULL;
 139         char *groupname = NULL;
 140 #endif
 141 #if defined(HAVE_CHROOT)
 142         char *sandbox = NULL;
 143 #endif
 144 #ifdef LOG_LOCAL4
 145     int     syslogUser = DEFAULT_SYSLOG_USER;
 146 #endif
 147
 148 #ifdef HAVE_NT_SERVICE_MANAGER
 149         char            *configfile = ".\\slapd.conf";
 150 #else
 151         char            *configfile = SLAPD_DEFAULT_CONFIGFILE;
 152 #endif
 153         char        *serverName = NULL;
 154         int         serverMode = SLAP_SERVER_MODE;
 155
 156 #ifdef CSRIMALLOC
 157         FILE *leakfile;
 158         if( ( leakfile = fopen( "slapd.leak", "w" )) == NULL ) {
 159                 leakfile = stderr;
 160         }
 161 #endif
 162
 163         g_argc = argc;
 164         g_argv = argv;
 165
 166 #ifdef HAVE_NT_SERVICE_MANAGER
 167         {
 168                 int *i;
 169                 char *newConfigFile;
 170                 char *newUrls;
 171                 char *regService = NULL;
 172
 173                 if ( is_NT_Service ) {
 174                         serverName = argv[0];
 175                         CommenceStartupProcessing( serverName, slap_sig_shutdown );
 176                         if ( strcmp(serverName, SERVICE_NAME) )
 177                             regService = serverName;
 178                 }
 179
 180                 i = (int*)getRegParam( regService, "DebugLevel" );
 181                 if ( i != NULL )
 182                 {
 183                         slap_debug = *i;
 184 #ifdef NEW_LOGGING
 185                         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 186                                    "main: new debug level from registry is: %d\n", slap_debug ));
 187 #else
 188                         Debug( LDAP_DEBUG_ANY, "new debug level from registry is: %d\n", slap_debug, 0, 0 );
 189 #endif
 190                 }
 191
 192                 newUrls = (char *) getRegParam(regService, "Urls");
 193                 if (newUrls)
 194                 {
 195                     if (urls)
 196                         ch_free(urls);
 197
 198                     urls = ch_strdup(newUrls);
 199 #ifdef NEW_LOGGING
 200                     LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 201                                "main: new urls from registry: %s\n", urls ));
 202 #else
 203                     Debug(LDAP_DEBUG_ANY, "new urls from registry: %s\n",
 204                           urls, 0, 0);
 205 #endif
 206
 207                 }
 208
 209                 newConfigFile = (char*)getRegParam( regService, "ConfigFile" );
 210                 if ( newConfigFile != NULL )
 211                 {
 212                         configfile = newConfigFile;
 213 #ifdef NEW_LOGGING
 214                         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 215                                    "main: new config file from registry is: %s\n", configfile ));
 216 #else
 217                         Debug ( LDAP_DEBUG_ANY, "new config file from registry is: %s\n", configfile, 0, 0 );
 218 #endif
 219
 220                 }
 221         }
 222 #endif
 223
 224         while ( (i = getopt( argc, argv,
 225                              "d:f:h:s:n:"
 226 #ifdef HAVE_CHROOT
 227                                 "r:"
 228 #endif
 229 #ifdef LOG_LOCAL4
 230                              "l:"
 231 #endif
 232 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 233                              "u:g:"
 234 #endif
 235                              )) != EOF ) {
 236                 switch ( i ) {
 237                 case 'h':       /* listen URLs */
 238                         if ( urls != NULL ) free( urls );
 239                         urls = ch_strdup( optarg );
 240             break;
 241
 242                 case 'd':       /* set debug level and 'do not detach' flag */
 243                         no_detach = 1;
 244 #ifdef LDAP_DEBUG
 245                         slap_debug |= atoi( optarg );
 246 #else
 247                         if ( atoi( optarg ) != 0 )
 248                                 fputs( "must compile with LDAP_DEBUG for debugging\n",
 249                                        stderr );
 250 #endif
 251                         break;
 252
 253                 case 'f':       /* read config file */
 254                         configfile = ch_strdup( optarg );
 255                         break;
 256
 257                 case 's':       /* set syslog level */
 258                         ldap_syslog = atoi( optarg );
 259                         break;
 260
 261 #ifdef LOG_LOCAL4
 262                 case 'l':       /* set syslog local user */
 263                         syslogUser = cnvt_str2int( optarg,
 264                                 syslog_types, DEFAULT_SYSLOG_USER );
 265                         break;
 266 #endif
 267
 268 #ifdef HAVE_CHROOT
 269                 case 'r':
 270                         if( sandbox ) free(sandbox);
 271                         sandbox = ch_strdup( optarg );
 272                         break;
 273 #endif
 274
 275 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 276                 case 'u':       /* user name */
 277                         if( username ) free(username);
 278                         username = ch_strdup( optarg );
 279                         break;
 280
 281                 case 'g':       /* group name */
 282                         if( groupname ) free(groupname);
 283                         groupname = ch_strdup( optarg );
 284                         break;
 285 #endif /* SETUID && GETUID */
 286
 287                 case 'n':  /* NT service name */
 288                         if( serverName != NULL ) free( serverName );
 289                         serverName = ch_strdup( optarg );
 290                         break;
 291
 292                 default:
 293                         usage( argv[0] );
 294                         rc = 1;
 295                         SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 15 );
 296                         goto stop;
 297                 }
 298         }
 299
 300 #ifdef NEW_LOGGING
 301         lutil_log_initialize( argc, argv );
 302 #endif
 303
 304         lutil_set_debug_level( "slapd", slap_debug );
 305         ber_set_option(NULL, LBER_OPT_DEBUG_LEVEL, &slap_debug);
 306         ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &slap_debug);
 307         ldif_debug = slap_debug;
 308
 309 #ifdef NEW_LOGGING
 310         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 311                    "%s", Versionstr ));
 312 #else
 313         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 314 #endif
 315
 316
 317         if( serverName == NULL ) {
 318                 if ( (serverName = strrchr( argv[0], *LDAP_DIRSEP )) == NULL ) {
 319                         serverName = ch_strdup( argv[0] );
 320                 } else {
 321                         serverName = ch_strdup( serverName + 1 );
 322                 }
 323         }
 324
 325 #ifdef LOG_LOCAL4
 326         openlog( serverName, OPENLOG_OPTIONS, syslogUser );
 327 #elif LOG_DEBUG
 328         openlog( serverName, OPENLOG_OPTIONS );
 329 #endif
 330
 331         if( slapd_daemon_init( urls ) != 0 ) {
 332                 rc = 1;
 333                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 16 );
 334                 goto stop;
 335         }
 336
 337 #if defined(HAVE_CHROOT)
 338         if ( sandbox ) {
 339                 if ( chdir( sandbox ) ) {
 340                         perror("chdir");
 341                         rc = 1;
 342                         goto stop;
 343                 }
 344                 if ( chroot( sandbox ) ) {
 345                         perror("chroot");
 346                         rc = 1;
 347                         goto stop;
 348                 }
 349         }
 350 #endif
 351
 352 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 353         if ( username != NULL || groupname != NULL ) {
 354                 slap_init_user( username, groupname );
 355         }
 356 #endif
 357
 358         extops_init();
 359
 360 #ifdef SLAPD_MODULES
 361         if ( module_init() != 0 ) {
 362                 rc = 1;
 363                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 17 );
 364                 goto destroy;
 365         }
 366 #endif
 367
 368         if ( slap_init( serverMode, serverName ) != 0 ) {
 369                 rc = 1;
 370                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 18 );
 371                 goto destroy;
 372         }
 373
 374         if ( schema_init( ) != 0 ) {
 375 #ifdef NEW_LOGGING
 376                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 377                            "main: schema initialization error\n" ));
 378 #else
 379                 Debug( LDAP_DEBUG_ANY,
 380                     "schema initialization error\n",
 381                     0, 0, 0 );
 382 #endif
 383
 384                 goto destroy;
 385         }
 386
 387         if ( read_config( configfile ) != 0 ) {
 388                 rc = 1;
 389                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 19 );
 390                 goto destroy;
 391         }
 392
 393         if ( schema_prep( ) != 0 ) {
 394 #ifdef NEW_LOGGING
 395                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 396                            "main: schema prep error\n"));
 397 #else
 398                 Debug( LDAP_DEBUG_ANY,
 399                     "schema prep error\n",
 400                     0, 0, 0 );
 401 #endif
 402
 403                 goto destroy;
 404         }
 405
 406 #ifdef HAVE_TLS
 407         rc = ldap_pvt_tls_init();
 408         if( rc != 0) {
 409 #ifdef NEW_LOGGING
 410                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 411                            "main: tls init failed: %d\n", rc ));
 412 #else
 413                 Debug( LDAP_DEBUG_ANY,
 414                     "main: TLS init failed: %d\n",
 415                     0, 0, 0 );
 416 #endif
 417                 rc = 1;
 418                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 419                 goto destroy;
 420         }
 421
 422         rc = ldap_pvt_tls_init_def_ctx();
 423         if( rc != 0) {
 424 #ifdef NEW_LOGGING
 425                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 426                            "main: tls init def ctx failed: %d\n", rc ));
 427 #else
 428                 Debug( LDAP_DEBUG_ANY,
 429                     "main: TLS init def ctx failed: %d\n",
 430                     0, 0, 0 );
 431 #endif
 432                 rc = 1;
 433                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 434                 goto destroy;
 435         }
 436 #endif
 437
 438         (void) SIGNAL( LDAP_SIGUSR1, slap_sig_wake );
 439         (void) SIGNAL( LDAP_SIGUSR2, slap_sig_shutdown );
 440
 441 #ifdef SIGPIPE
 442         (void) SIGNAL( SIGPIPE, SIG_IGN );
 443 #endif
 444 #ifdef SIGHUP
 445         (void) SIGNAL( SIGHUP, slap_sig_shutdown );
 446 #endif
 447         (void) SIGNAL( SIGINT, slap_sig_shutdown );
 448         (void) SIGNAL( SIGTERM, slap_sig_shutdown );
 449 #ifdef LDAP_SIGCHLD
 450         (void) SIGNAL( LDAP_SIGCHLD, wait4child );
 451 #endif
 452 #ifdef SIGBREAK
 453         /* SIGBREAK is generated when Ctrl-Break is pressed. */
 454         (void) SIGNAL( SIGBREAK, slap_sig_shutdown );
 455 #endif
 456
 457 #ifndef HAVE_WINSOCK
 458         lutil_detach( no_detach, 0 );
 459 #endif /* HAVE_WINSOCK */
 460
 461 #ifdef CSRIMALLOC
 462         mal_leaktrace(1);
 463 #endif
 464
 465         if ( slap_startup( NULL )  != 0 ) {
 466                 rc = 1;
 467                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 21 );
 468                 goto shutdown;
 469         }
 470
 471         {
 472                 FILE *fp;
 473
 474 #ifdef NEW_LOGGING
 475                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 476                            "main: slapd starting.\n" ));
 477 #else
 478                 Debug( LDAP_DEBUG_ANY, "slapd starting\n", 0, 0, 0 );
 479 #endif
 480
 481
 482                 if (( slapd_pid_file != NULL ) &&
 483                         (( fp = fopen( slapd_pid_file, "w" )) != NULL ))
 484                 {
 485                         fprintf( fp, "%d\n", (int) getpid() );
 486                         fclose( fp );
 487                 }
 488
 489                 if (( slapd_args_file != NULL ) &&
 490                         (( fp = fopen( slapd_args_file, "w" )) != NULL ))
 491                 {
 492                         for ( i = 0; i < g_argc; i++ ) {
 493                                 fprintf( fp, "%s ", g_argv[i] );
 494                         }
 495                         fprintf( fp, "\n" );
 496                         fclose( fp );
 497                 }
 498         }
 499
 500 #ifdef HAVE_NT_EVENT_LOG
 501         if (is_NT_Service)
 502         LogSlapdStartedEvent( serverName, slap_debug, configfile, urls );
 503 #endif
 504
 505         rc = slapd_daemon();
 506
 507 #ifdef HAVE_NT_SERVICE_MANAGER
 508         /* Throw away the event that we used during the startup process. */
 509         if ( is_NT_Service )
 510                 ldap_pvt_thread_cond_destroy( &started_event );
 511 #endif
 512
 513 shutdown:
 514         /* remember an error during shutdown */
 515         rc |= slap_shutdown( NULL );
 516
 517 destroy:
 518         /* remember an error during destroy */
 519         rc |= slap_destroy();
 520
 521 #ifdef SLAPD_MODULES
 522         module_kill();
 523 #endif
 524
 525         extops_kill();
 526
 527 stop:
 528 #ifdef HAVE_NT_EVENT_LOG
 529         if (is_NT_Service)
 530         LogSlapdStoppedEvent( serverName );
 531 #endif
 532
 533 #ifdef NEW_LOGGING
 534         LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 535                    "main: slapd stopped.\n" ));
 536 #else
 537         Debug( LDAP_DEBUG_ANY, "slapd stopped.\n", 0, 0, 0 );
 538 #endif
 539
 540
 541 #ifdef HAVE_NT_SERVICE_MANAGER
 542         ReportSlapdShutdownComplete();
 543 #endif
 544
 545 #ifdef LOG_DEBUG
 546     closelog();
 547 #endif
 548         slapd_daemon_destroy();
 549
 550         schema_destroy();
 551
 552 #ifdef HAVE_TLS
 553         ldap_pvt_tls_destroy();
 554 #endif
 555
 556 #ifdef CSRIMALLOC
 557         mal_dumpleaktrace( leakfile );
 558 #endif
 559
 560         MAIN_RETURN(rc);
 561 }
 562
 563
 564 #ifdef LDAP_SIGCHLD
 565
 566 /*
 567  *  Catch and discard terminated child processes, to avoid zombies.
 568  */
 569
 570 static RETSIGTYPE
 571 wait4child( int sig )
 572 {
 573     int save_errno = errno;
 574
 575 #ifdef WNOHANG
 576     errno = 0;
 577 #ifdef HAVE_WAITPID
 578     while ( waitpid( (pid_t)-1, NULL, WNOHANG ) > 0 || errno == EINTR )
 579         ;       /* NULL */
 580 #else
 581     while ( wait3( NULL, WNOHANG, NULL ) > 0 || errno == EINTR )
 582         ;       /* NULL */
 583 #endif
 584 #else
 585     (void) wait( NULL );
 586 #endif
 587     (void) SIGNAL_REINSTALL( sig, wait4child );
 588     errno = save_errno;
 589 }
 590
 591 #endif /* SIGCHLD || SIGCLD */
 592
 593
 594 #ifdef LOG_LOCAL4
 595
 596 /*
 597  *  Convert a string to an integer by means of a dispatcher table
 598  *  if the string is not in the table return the default
 599  */
 600
 601 static int
 602 cnvt_str2int( char *stringVal, STRDISP_P dispatcher, int defaultVal )
 603 {
 604     int        retVal = defaultVal;
 605     STRDISP_P  disp;
 606
 607     for (disp = dispatcher; disp->stringVal; disp++) {
 608
 609         if (!strncasecmp (stringVal, disp->stringVal, disp->abbr)) {
 610
 611             retVal = disp->intVal;
 612             break;
 613
 614         }
 615     }
 616
 617     return (retVal);
 618 }
 619
 620 #endif  /* LOG_LOCAL4 */