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