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 #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 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 #ifdef HAVE_NT_SERVICE_MANAGER
 140         char            *configfile = ".\\slapd.conf";
 141 #else
 142         char            *configfile = SLAPD_DEFAULT_CONFIGFILE;
 143 #endif
 144         char        *serverName = NULL;
 145         int         serverMode = SLAP_SERVER_MODE;
 146
 147 #ifdef CSRIMALLOC
 148         FILE *leakfile;
 149         if( ( leakfile = fopen( "slapd.leak", "w" )) == NULL ) {
 150                 leakfile = stderr;
 151         }
 152 #endif
 153
 154         g_argc = argc;
 155         g_argv = argv;
 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 = ch_strdup( argv[0] );
 311                 } else {
 312                         serverName = ch_strdup( 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 ( 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 ( schema_prep( ) != 0 ) {
 385 #ifdef NEW_LOGGING
 386                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 387                            "main: schema prep error\n"));
 388 #else
 389                 Debug( LDAP_DEBUG_ANY,
 390                     "schema prep error\n",
 391                     0, 0, 0 );
 392 #endif
 393
 394                 goto destroy;
 395         }
 396
 397 #ifdef HAVE_TLS
 398         rc = ldap_pvt_tls_init();
 399         if( rc != 0) {
 400 #ifdef NEW_LOGGING
 401                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 402                            "main: tls init failed: %d\n", rc ));
 403 #else
 404                 Debug( LDAP_DEBUG_ANY,
 405                     "main: TLS init failed: %d\n",
 406                     0, 0, 0 );
 407 #endif
 408                 rc = 1;
 409                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 410                 goto destroy;
 411         }
 412
 413         rc = ldap_pvt_tls_init_def_ctx();
 414         if( rc != 0) {
 415 #ifdef NEW_LOGGING
 416                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 417                            "main: tls init def ctx failed: %d\n", rc ));
 418 #else
 419                 Debug( LDAP_DEBUG_ANY,
 420                     "main: TLS init def ctx failed: %d\n",
 421                     0, 0, 0 );
 422 #endif
 423                 rc = 1;
 424                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 425                 goto destroy;
 426         }
 427 #endif
 428
 429         (void) SIGNAL( LDAP_SIGUSR1, slap_sig_wake );
 430         (void) SIGNAL( LDAP_SIGUSR2, slap_sig_shutdown );
 431
 432 #ifdef SIGPIPE
 433         (void) SIGNAL( SIGPIPE, SIG_IGN );
 434 #endif
 435 #ifdef SIGHUP
 436         (void) SIGNAL( SIGHUP, slap_sig_shutdown );
 437 #endif
 438         (void) SIGNAL( SIGINT, slap_sig_shutdown );
 439         (void) SIGNAL( SIGTERM, slap_sig_shutdown );
 440 #ifdef LDAP_SIGCHLD
 441         (void) SIGNAL( LDAP_SIGCHLD, wait4child );
 442 #endif
 443 #ifdef SIGBREAK
 444         /* SIGBREAK is generated when Ctrl-Break is pressed. */
 445         (void) SIGNAL( SIGBREAK, slap_sig_shutdown );
 446 #endif
 447
 448 #ifndef HAVE_WINSOCK
 449         lutil_detach( no_detach, 0 );
 450 #endif /* HAVE_WINSOCK */
 451
 452 #ifdef CSRIMALLOC
 453         mal_leaktrace(1);
 454 #endif
 455
 456         if ( slap_startup( NULL )  != 0 ) {
 457                 rc = 1;
 458                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 21 );
 459                 goto shutdown;
 460         }
 461
 462         {
 463                 FILE *fp;
 464
 465 #ifdef NEW_LOGGING
 466                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 467                            "main: slapd starting.\n" ));
 468 #else
 469                 Debug( LDAP_DEBUG_ANY, "slapd starting\n", 0, 0, 0 );
 470 #endif
 471
 472
 473                 if (( slapd_pid_file != NULL ) &&
 474                         (( fp = fopen( slapd_pid_file, "w" )) != NULL ))
 475                 {
 476                         fprintf( fp, "%d\n", (int) getpid() );
 477                         fclose( fp );
 478                 }
 479
 480                 if (( slapd_args_file != NULL ) &&
 481                         (( fp = fopen( slapd_args_file, "w" )) != NULL ))
 482                 {
 483                         for ( i = 0; i < g_argc; i++ ) {
 484                                 fprintf( fp, "%s ", g_argv[i] );
 485                         }
 486                         fprintf( fp, "\n" );
 487                         fclose( fp );
 488                 }
 489         }
 490
 491 #ifdef HAVE_NT_EVENT_LOG
 492         if (is_NT_Service)
 493         LogSlapdStartedEvent( serverName, slap_debug, configfile, urls );
 494 #endif
 495
 496         rc = slapd_daemon();
 497
 498 #ifdef HAVE_NT_SERVICE_MANAGER
 499         /* Throw away the event that we used during the startup process. */
 500         if ( is_NT_Service )
 501                 ldap_pvt_thread_cond_destroy( &started_event );
 502 #endif
 503
 504 shutdown:
 505         /* remember an error during shutdown */
 506         rc |= slap_shutdown( NULL );
 507
 508 destroy:
 509         /* remember an error during destroy */
 510         rc |= slap_destroy();
 511
 512 #ifdef SLAPD_MODULES
 513         module_kill();
 514 #endif
 515
 516         extops_kill();
 517
 518 stop:
 519 #ifdef HAVE_NT_EVENT_LOG
 520         if (is_NT_Service)
 521         LogSlapdStoppedEvent( serverName );
 522 #endif
 523
 524 #ifdef NEW_LOGGING
 525         LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 526                    "main: slapd stopped.\n" ));
 527 #else
 528         Debug( LDAP_DEBUG_ANY, "slapd stopped.\n", 0, 0, 0 );
 529 #endif
 530
 531
 532 #ifdef HAVE_NT_SERVICE_MANAGER
 533         ReportSlapdShutdownComplete();
 534 #endif
 535
 536 #ifdef LOG_DEBUG
 537     closelog();
 538 #endif
 539         slapd_daemon_destroy();
 540
 541         schema_destroy();
 542
 543 #ifdef HAVE_TLS
 544         ldap_pvt_tls_destroy();
 545 #endif
 546
 547 #ifdef CSRIMALLOC
 548         mal_dumpleaktrace( leakfile );
 549 #endif
 550
 551         MAIN_RETURN(rc);
 552 }
 553
 554
 555 #ifdef LDAP_SIGCHLD
 556
 557 /*
 558  *  Catch and discard terminated child processes, to avoid zombies.
 559  */
 560
 561 static RETSIGTYPE
 562 wait4child( int sig )
 563 {
 564     int save_errno = errno;
 565
 566 #ifdef WNOHANG
 567     errno = 0;
 568 #ifdef HAVE_WAITPID
 569     while ( waitpid( (pid_t)-1, NULL, WNOHANG ) > 0 || errno == EINTR )
 570         ;       /* NULL */
 571 #else
 572     while ( wait3( NULL, WNOHANG, NULL ) > 0 || errno == EINTR )
 573         ;       /* NULL */
 574 #endif
 575 #else
 576     (void) wait( NULL );
 577 #endif
 578     (void) SIGNAL_REINSTALL( sig, wait4child );
 579     errno = save_errno;
 580 }
 581
 582 #endif /* SIGCHLD || SIGCLD */
 583
 584
 585 #ifdef LOG_LOCAL4
 586
 587 /*
 588  *  Convert a string to an integer by means of a dispatcher table
 589  *  if the string is not in the table return the default
 590  */
 591
 592 static int
 593 cnvt_str2int( char *stringVal, STRDISP_P dispatcher, int defaultVal )
 594 {
 595     int        retVal = defaultVal;
 596     STRDISP_P  disp;
 597
 598     for (disp = dispatcher; disp->stringVal; disp++) {
 599
 600         if (!strncasecmp (stringVal, disp->stringVal, disp->abbr)) {
 601
 602             retVal = disp->intVal;
 603             break;
 604
 605         }
 606     }
 607
 608     return (retVal);
 609 }
 610
 611 #endif  /* LOG_LOCAL4 */