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