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 static int check_config = 0;
  92
  93 static void
  94 usage( char *name )
  95 {
  96         fprintf( stderr,
  97                 "usage: %s options\n", name );
  98         fprintf( stderr,
  99                 "\t-4\t\tIPv4 only\n"
 100                 "\t-6\t\tIPv6 only\n"
 101                 "\t-d level\tDebug level" "\n"
 102                 "\t-f filename\tConfiguration file\n"
 103 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 104                 "\t-g group\tGroup (id or name) to run as\n"
 105 #endif
 106                 "\t-h URLs\t\tList of URLs to serve\n"
 107 #ifdef LOG_LOCAL4
 108                 "\t-l facility\tSyslog facility (default: LOCAL4)\n"
 109 #endif
 110                 "\t-n serverName\tService name\n"
 111 #ifdef HAVE_CHROOT
 112                 "\t-r directory\tSandbox directory to chroot to\n"
 113 #endif
 114                 "\t-s level\tSyslog level\n"
 115                 "\t-t\t\tCheck configuration file and exit\n"
 116 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 117                 "\t-u user\t\tUser (id or name) to run as\n"
 118 #endif
 119     );
 120 }
 121
 122 #ifdef HAVE_NT_SERVICE_MANAGER
 123 void WINAPI ServiceMain( DWORD argc, LPTSTR *argv )
 124 #else
 125 int main( int argc, char **argv )
 126 #endif
 127 {
 128         int             i, no_detach = 0;
 129         int             rc = 1;
 130         char *urls = NULL;
 131 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 132         char *username = NULL;
 133         char *groupname = NULL;
 134 #endif
 135 #if defined(HAVE_CHROOT)
 136         char *sandbox = NULL;
 137 #endif
 138 #ifdef LOG_LOCAL4
 139     int     syslogUser = DEFAULT_SYSLOG_USER;
 140 #endif
 141
 142         int g_argc = argc;
 143         char **g_argv = argv;
 144
 145 #ifdef HAVE_NT_SERVICE_MANAGER
 146         char            *configfile = ".\\slapd.conf";
 147 #else
 148         char            *configfile = SLAPD_DEFAULT_CONFIGFILE;
 149 #endif
 150         char        *serverName = NULL;
 151         int         serverMode = SLAP_SERVER_MODE;
 152
 153 #ifdef CSRIMALLOC
 154         FILE *leakfile;
 155         if( ( leakfile = fopen( "slapd.leak", "w" )) == NULL ) {
 156                 leakfile = stderr;
 157         }
 158 #endif
 159
 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:t"
 221 #if LDAP_PF_INET6
 222                                 "46"
 223 #endif
 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 #ifdef LDAP_PF_INET6
 236                 case '4':
 237                         slap_inet4or6 = AF_INET;
 238                         break;
 239                 case '6':
 240                         slap_inet4or6 = AF_INET6;
 241                         break;
 242 #endif
 243
 244                 case 'h':       /* listen URLs */
 245                         if ( urls != NULL ) free( urls );
 246                         urls = ch_strdup( optarg );
 247             break;
 248
 249                 case 'd':       /* set debug level and 'do not detach' flag */
 250                         no_detach = 1;
 251 #ifdef LDAP_DEBUG
 252                         slap_debug |= atoi( optarg );
 253 #else
 254                         if ( atoi( optarg ) != 0 )
 255                                 fputs( "must compile with LDAP_DEBUG for debugging\n",
 256                                        stderr );
 257 #endif
 258                         break;
 259
 260                 case 'f':       /* read config file */
 261                         configfile = ch_strdup( optarg );
 262                         break;
 263
 264                 case 's':       /* set syslog level */
 265                         ldap_syslog = atoi( optarg );
 266                         break;
 267
 268 #ifdef LOG_LOCAL4
 269                 case 'l':       /* set syslog local user */
 270                         syslogUser = cnvt_str2int( optarg,
 271                                 syslog_types, DEFAULT_SYSLOG_USER );
 272                         break;
 273 #endif
 274
 275 #ifdef HAVE_CHROOT
 276                 case 'r':
 277                         if( sandbox ) free(sandbox);
 278                         sandbox = ch_strdup( optarg );
 279                         break;
 280 #endif
 281
 282 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 283                 case 'u':       /* user name */
 284                         if( username ) free(username);
 285                         username = ch_strdup( optarg );
 286                         break;
 287
 288                 case 'g':       /* group name */
 289                         if( groupname ) free(groupname);
 290                         groupname = ch_strdup( optarg );
 291                         break;
 292 #endif /* SETUID && GETUID */
 293
 294                 case 'n':  /* NT service name */
 295                         if( serverName != NULL ) free( serverName );
 296                         serverName = ch_strdup( optarg );
 297                         break;
 298
 299                 case 't':
 300                         check_config++;
 301                         break;
 302
 303                 default:
 304                         usage( argv[0] );
 305                         rc = 1;
 306                         SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 15 );
 307                         goto stop;
 308                 }
 309         }
 310
 311 #ifdef NEW_LOGGING
 312         lutil_log_initialize( argc, argv );
 313 #endif
 314
 315         lutil_set_debug_level( "slapd", slap_debug );
 316         ber_set_option(NULL, LBER_OPT_DEBUG_LEVEL, &slap_debug);
 317         ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &slap_debug);
 318         ldif_debug = slap_debug;
 319
 320 #ifdef NEW_LOGGING
 321         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 322                    "%s", Versionstr ));
 323 #else
 324         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 325 #endif
 326
 327
 328         if( serverName == NULL ) {
 329                 if ( (serverName = strrchr( argv[0], *LDAP_DIRSEP )) == NULL ) {
 330                         serverName = argv[0];
 331                 } else {
 332                         serverName = serverName + 1;
 333                 }
 334         }
 335
 336 #ifdef LOG_LOCAL4
 337         openlog( serverName, OPENLOG_OPTIONS, syslogUser );
 338 #elif LOG_DEBUG
 339         openlog( serverName, OPENLOG_OPTIONS );
 340 #endif
 341
 342         if( !check_config && slapd_daemon_init( urls ) != 0 ) {
 343                 rc = 1;
 344                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 16 );
 345                 goto stop;
 346         }
 347
 348 #if defined(HAVE_CHROOT)
 349         if ( sandbox ) {
 350                 if ( chdir( sandbox ) ) {
 351                         perror("chdir");
 352                         rc = 1;
 353                         goto stop;
 354                 }
 355                 if ( chroot( sandbox ) ) {
 356                         perror("chroot");
 357                         rc = 1;
 358                         goto stop;
 359                 }
 360         }
 361 #endif
 362
 363 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 364         if ( username != NULL || groupname != NULL ) {
 365                 slap_init_user( username, groupname );
 366         }
 367 #endif
 368
 369         extops_init();
 370
 371 #ifdef SLAPD_MODULES
 372         if ( module_init() != 0 ) {
 373                 rc = 1;
 374                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 17 );
 375                 goto destroy;
 376         }
 377 #endif
 378
 379         if ( slap_init( serverMode, serverName ) != 0 ) {
 380                 rc = 1;
 381                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 18 );
 382                 goto destroy;
 383         }
 384
 385         if ( slap_schema_init( ) != 0 ) {
 386 #ifdef NEW_LOGGING
 387                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 388                            "main: schema initialization error\n" ));
 389 #else
 390                 Debug( LDAP_DEBUG_ANY,
 391                     "schema initialization error\n",
 392                     0, 0, 0 );
 393 #endif
 394
 395                 goto destroy;
 396         }
 397
 398 #ifdef HAVE_TLS
 399         /* Library defaults to full certificate checking. This is correct when
 400          * a client is verifying a server because all servers should have a
 401          * valid cert. But few clients have valid certs, so we want our default
 402          * to be no checking. The config file can override this as usual.
 403          */
 404         rc = 0;
 405         (void) ldap_pvt_tls_set_option( NULL, LDAP_OPT_X_TLS_REQUIRE_CERT, &rc );
 406 #endif
 407
 408         if ( read_config( configfile ) != 0 ) {
 409                 rc = 1;
 410                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 19 );
 411
 412                 if ( check_config ) {
 413                         fprintf( stderr, "config check failed\n" );
 414                 }
 415
 416                 goto destroy;
 417         }
 418
 419         if ( check_config ) {
 420                 rc = 0;
 421                 fprintf( stderr, "config check succeeded\n" );
 422                 goto destroy;
 423         }
 424
 425         if ( glue_sub_init( ) != 0 ) {
 426 #ifdef NEW_LOGGING
 427                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 428                            "main: subordinate config error\n"));
 429 #else
 430                 Debug( LDAP_DEBUG_ANY,
 431                     "subordinate config error\n",
 432                     0, 0, 0 );
 433 #endif
 434                 goto destroy;
 435         }
 436
 437         if ( slap_schema_check( ) != 0 ) {
 438 #ifdef NEW_LOGGING
 439                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 440                            "main: schema prep error\n"));
 441 #else
 442                 Debug( LDAP_DEBUG_ANY,
 443                     "schema prep error\n",
 444                     0, 0, 0 );
 445 #endif
 446
 447                 goto destroy;
 448         }
 449
 450 #ifdef HAVE_TLS
 451         rc = ldap_pvt_tls_init();
 452         if( rc != 0) {
 453 #ifdef NEW_LOGGING
 454                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 455                            "main: tls init failed: %d\n", rc ));
 456 #else
 457                 Debug( LDAP_DEBUG_ANY,
 458                     "main: TLS init failed: %d\n",
 459                     0, 0, 0 );
 460 #endif
 461                 rc = 1;
 462                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 463                 goto destroy;
 464         }
 465
 466         rc = ldap_pvt_tls_init_def_ctx();
 467         if( rc != 0) {
 468 #ifdef NEW_LOGGING
 469                 LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 470                            "main: tls init def ctx failed: %d\n", rc ));
 471 #else
 472                 Debug( LDAP_DEBUG_ANY,
 473                     "main: TLS init def ctx failed: %d\n",
 474                     0, 0, 0 );
 475 #endif
 476                 rc = 1;
 477                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 478                 goto destroy;
 479         }
 480 #endif
 481
 482         (void) SIGNAL( LDAP_SIGUSR1, slap_sig_wake );
 483         (void) SIGNAL( LDAP_SIGUSR2, slap_sig_shutdown );
 484
 485 #ifdef SIGPIPE
 486         (void) SIGNAL( SIGPIPE, SIG_IGN );
 487 #endif
 488 #ifdef SIGHUP
 489         (void) SIGNAL( SIGHUP, slap_sig_shutdown );
 490 #endif
 491         (void) SIGNAL( SIGINT, slap_sig_shutdown );
 492         (void) SIGNAL( SIGTERM, slap_sig_shutdown );
 493 #ifdef LDAP_SIGCHLD
 494         (void) SIGNAL( LDAP_SIGCHLD, wait4child );
 495 #endif
 496 #ifdef SIGBREAK
 497         /* SIGBREAK is generated when Ctrl-Break is pressed. */
 498         (void) SIGNAL( SIGBREAK, slap_sig_shutdown );
 499 #endif
 500
 501 #ifndef HAVE_WINSOCK
 502         lutil_detach( no_detach, 0 );
 503 #endif /* HAVE_WINSOCK */
 504
 505 #ifdef CSRIMALLOC
 506         mal_leaktrace(1);
 507 #endif
 508
 509         if ( slap_startup( NULL )  != 0 ) {
 510                 rc = 1;
 511                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 21 );
 512                 goto shutdown;
 513         }
 514
 515         {
 516                 FILE *fp;
 517
 518 #ifdef NEW_LOGGING
 519                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 520                            "main: slapd starting.\n" ));
 521 #else
 522                 Debug( LDAP_DEBUG_ANY, "slapd starting\n", 0, 0, 0 );
 523 #endif
 524
 525
 526                 if (( slapd_pid_file != NULL ) &&
 527                         (( fp = fopen( slapd_pid_file, "w" )) != NULL ))
 528                 {
 529                         fprintf( fp, "%d\n", (int) getpid() );
 530                         fclose( fp );
 531                 }
 532
 533                 if (( slapd_args_file != NULL ) &&
 534                         (( fp = fopen( slapd_args_file, "w" )) != NULL ))
 535                 {
 536                         for ( i = 0; i < g_argc; i++ ) {
 537                                 fprintf( fp, "%s ", g_argv[i] );
 538                         }
 539                         fprintf( fp, "\n" );
 540                         fclose( fp );
 541                 }
 542         }
 543
 544 #ifdef HAVE_NT_EVENT_LOG
 545         if (is_NT_Service)
 546         LogSlapdStartedEvent( serverName, slap_debug, configfile, urls );
 547 #endif
 548
 549         rc = slapd_daemon();
 550
 551 #ifdef HAVE_NT_SERVICE_MANAGER
 552         /* Throw away the event that we used during the startup process. */
 553         if ( is_NT_Service )
 554                 ldap_pvt_thread_cond_destroy( &started_event );
 555 #endif
 556
 557 shutdown:
 558         /* remember an error during shutdown */
 559         rc |= slap_shutdown( NULL );
 560
 561 destroy:
 562         /* remember an error during destroy */
 563         rc |= slap_destroy();
 564
 565 #ifdef SLAPD_MODULES
 566         module_kill();
 567 #endif
 568
 569         extops_kill();
 570
 571 stop:
 572 #ifdef HAVE_NT_EVENT_LOG
 573         if (is_NT_Service)
 574         LogSlapdStoppedEvent( serverName );
 575 #endif
 576
 577 #ifdef NEW_LOGGING
 578         LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
 579                    "main: slapd stopped.\n" ));
 580 #else
 581         Debug( LDAP_DEBUG_ANY, "slapd stopped.\n", 0, 0, 0 );
 582 #endif
 583
 584
 585 #ifdef HAVE_NT_SERVICE_MANAGER
 586         ReportSlapdShutdownComplete();
 587 #endif
 588
 589 #ifdef LOG_DEBUG
 590     closelog();
 591 #endif
 592         slapd_daemon_destroy();
 593
 594         schema_destroy();
 595
 596 #ifdef HAVE_TLS
 597         ldap_pvt_tls_destroy();
 598 #endif
 599
 600         config_destroy();
 601
 602 #ifdef CSRIMALLOC
 603         mal_dumpleaktrace( leakfile );
 604 #endif
 605
 606         MAIN_RETURN(rc);
 607 }
 608
 609
 610 #ifdef LDAP_SIGCHLD
 611
 612 /*
 613  *  Catch and discard terminated child processes, to avoid zombies.
 614  */
 615
 616 static RETSIGTYPE
 617 wait4child( int sig )
 618 {
 619     int save_errno = errno;
 620
 621 #ifdef WNOHANG
 622     errno = 0;
 623 #ifdef HAVE_WAITPID
 624     while ( waitpid( (pid_t)-1, NULL, WNOHANG ) > 0 || errno == EINTR )
 625         ;       /* NULL */
 626 #else
 627     while ( wait3( NULL, WNOHANG, NULL ) > 0 || errno == EINTR )
 628         ;       /* NULL */
 629 #endif
 630 #else
 631     (void) wait( NULL );
 632 #endif
 633     (void) SIGNAL_REINSTALL( sig, wait4child );
 634     errno = save_errno;
 635 }
 636
 637 #endif /* SIGCHLD || SIGCLD */
 638
 639
 640 #ifdef LOG_LOCAL4
 641
 642 /*
 643  *  Convert a string to an integer by means of a dispatcher table
 644  *  if the string is not in the table return the default
 645  */
 646
 647 static int
 648 cnvt_str2int( char *stringVal, STRDISP_P dispatcher, int defaultVal )
 649 {
 650     int        retVal = defaultVal;
 651     STRDISP_P  disp;
 652
 653     for (disp = dispatcher; disp->stringVal; disp++) {
 654
 655         if (!strncasecmp (stringVal, disp->stringVal, disp->abbr)) {
 656
 657             retVal = disp->intVal;
 658             break;
 659
 660         }
 661     }
 662
 663     return (retVal);
 664 }
 665
 666 #endif  /* LOG_LOCAL4 */