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