git.sur5r.net Git - openldap/blob - servers/slapd/main.c

   1 #include "portable.h"
   2
   3 #include <stdio.h>
   4
   5 #include <ac/signal.h>
   6 #include <ac/socket.h>
   7 #include <ac/string.h>
   8 #include <ac/time.h>
   9 #include <ac/unistd.h>
  10 #include <ac/wait.h>
  11 #include <ac/signal.h>
  12 #include <ac/errno.h>
  13
  14 #include "ldap_defaults.h"
  15 #include "slap.h"
  16 #include "lutil.h"
  17
  18 #ifdef LDAP_SIGCHLD
  19 static RETSIGTYPE wait4child( int sig );
  20 #endif
  21
  22 #ifdef HAVE_WINSOCK
  23 #define MAIN_RETURN(x) return
  24 struct sockaddr_in      bind_addr;
  25
  26 /* in nt_main.c */
  27 extern SERVICE_STATUS                   SLAPDServiceStatus;
  28 extern SERVICE_STATUS_HANDLE    hSLAPDServiceStatus;
  29 extern ldap_pvt_thread_cond_t   started_event,          stopped_event;
  30 extern int        is_NT_Service;
  31
  32 void LogSlapdStartedEvent( char *svc, int slap_debug, char *configfile, short port, int udp );
  33 void LogSlapdStoppedEvent( char *svc );
  34
  35 void CommenceStartupProcessing( LPCTSTR serviceName,
  36                                                            void(*stopper)(int));
  37 void ReportSlapdShutdownComplete( void );
  38 void *getRegParam( char *svc, char *value );
  39
  40 #define SERVICE_EXIT( e, n ) \
  41                 if ( is_NT_Service ) \
  42 { \
  43                         SLAPDServiceStatus.dwWin32ExitCode                              = e; \
  44                         SLAPDServiceStatus.dwServiceSpecificExitCode    = n; \
  45 }
  46 #else
  47 #define SERVICE_EXIT( e, n )
  48 #define MAIN_RETURN(x) return(x)
  49 #endif
  50
  51 short port = LDAP_PORT;
  52 #ifdef HAVE_TLS
  53 short tls_port = LDAP_TLS_PORT;
  54 #endif
  55 /*
  56  * when more than one slapd is running on one machine, each one might have
  57  * it's own LOCAL for syslogging and must have its own pid/args files
  58  */
  59
  60 #ifndef HAVE_MKVERSION
  61 const char Versionstr[] =
  62         OPENLDAP_PACKAGE " " OPENLDAP_VERSION " Standalone LDAP Server (slapd)";
  63 #endif
  64
  65 #ifdef LOG_LOCAL4
  66
  67 #define DEFAULT_SYSLOG_USER  LOG_LOCAL4
  68
  69 typedef struct _str2intDispatch {
  70         char    *stringVal;
  71         int      abbr;
  72         int      intVal;
  73 } STRDISP, *STRDISP_P;
  74
  75
  76 /* table to compute syslog-options to integer */
  77 static STRDISP  syslog_types[] = {
  78     { "LOCAL0",         6, LOG_LOCAL0 },
  79     { "LOCAL1",         6, LOG_LOCAL1 },
  80     { "LOCAL2",         6, LOG_LOCAL2 },
  81     { "LOCAL3",         6, LOG_LOCAL3 },
  82     { "LOCAL4",         6, LOG_LOCAL4 },
  83     { "LOCAL5",         6, LOG_LOCAL5 },
  84     { "LOCAL6",         6, LOG_LOCAL6 },
  85     { "LOCAL7",         6, LOG_LOCAL7 },
  86     { NULL }
  87 };
  88
  89 static int   cnvt_str2int( char *, STRDISP_P, int );
  90
  91 #endif  /* LOG_LOCAL4 */
  92
  93
  94 static void
  95 usage( char *name )
  96 {
  97         fprintf( stderr, "usage: %s [-d ?|debuglevel] [-f configfile] [-p portnumber] [-s sysloglevel]", name );
  98     fprintf( stderr, "\n        [-a bind-address] [-i] [-u]" );
  99 #ifdef HAVE_WINSOCK
 100         fprintf( stderr, " [-n NTserviceName]" );
 101 #endif
 102 #if LDAP_CONNECTIONLESS
 103         fprintf( stderr, " [-c]" );
 104 #endif
 105 #ifdef SLAPD_BDB2
 106     fprintf( stderr, " [-t]" );
 107 #endif
 108 #ifdef LOG_LOCAL4
 109     fprintf( stderr, " [-l sysloguser]" );
 110 #endif
 111 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 112     fprintf( stderr, " [-u user] [-g group]" );
 113 #endif
 114     fprintf( stderr, "\n" );
 115 }
 116
 117 time_t starttime;
 118 struct sockaddr_in      bind_addr;
 119 ber_int_t tcps;
 120 #ifdef HAVE_TLS
 121 struct sockaddr_in      tls_bind_addr;
 122 ber_int_t tls_tcps;
 123 #endif
 124
 125 #ifdef HAVE_WINSOCK
 126 void WINAPI ServiceMain( DWORD argc, LPTSTR *argv )
 127 #else
 128 int main( int argc, char **argv )
 129 #endif
 130 {
 131         int             i;
 132         int             inetd = 0;
 133         int             rc;
 134         struct slapd_args args;
 135         int             udp;
 136 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 137         char *username = NULL;
 138         char *groupname = NULL;
 139 #endif
 140 #ifdef LOG_LOCAL4
 141     int     syslogUser = DEFAULT_SYSLOG_USER;
 142 #endif
 143 #ifdef HAVE_WINSOCK
 144         char        *NTservice  = SERVICE_NAME;
 145         char            *configfile = ".\\slapd.conf";
 146 #else
 147         char            *configfile = SLAPD_DEFAULT_CONFIGFILE;
 148 #endif
 149         char        *serverName;
 150         int         serverMode = SLAP_SERVER_MODE;
 151         int             use_tls_port = 0;
 152
 153         (void) memset( (void*) &bind_addr, '\0', sizeof(bind_addr));
 154         bind_addr.sin_family = AF_INET;
 155         bind_addr.sin_addr.s_addr = htonl(INADDR_ANY);
 156         bind_addr.sin_port = htons(port);
 157 #ifdef HAVE_TLS
 158         tls_bind_addr.sin_family = AF_INET;
 159         tls_bind_addr.sin_addr.s_addr = htonl(INADDR_ANY);
 160         tls_bind_addr.sin_port = htons(tls_port);
 161 #endif
 162
 163         g_argc = argc;
 164         g_argv = argv;
 165
 166 #ifdef HAVE_WINSOCK
 167         {
 168                 int *newPort;
 169                 int *newDebugLevel;
 170                 char *newConfigFile;
 171                 ldap_debug = 0xffff;
 172                 if ( is_NT_Service ) CommenceStartupProcessing( NTservice, slap_set_shutdown );
 173                 newPort = (int*)getRegParam( NULL, "Port" );
 174                 if ( newPort != NULL )
 175                 {
 176                         port = *newPort;
 177                         bind_addr.sin_port = htons(port);
 178                         Debug ( LDAP_DEBUG_ANY, "new port from registry is: %d\n", port, 0, 0 );
 179                 }
 180                 newDebugLevel = (int*)getRegParam( NULL, "DebugLevel" );
 181                 if ( newDebugLevel != NULL )
 182                 {
 183                         slap_debug = *newDebugLevel;
 184                         Debug( LDAP_DEBUG_ANY, "new debug level from registry is: %d\n", slap_debug, 0, 0 );
 185                 }
 186                 newConfigFile = (char*)getRegParam( NULL, "ConfigFile" );
 187                 if ( newConfigFile != NULL )
 188                 {
 189                         configfile = newConfigFile;
 190                         Debug ( LDAP_DEBUG_ANY, "new config file from registry is: %s\n", configfile, 0, 0 );
 191                 }
 192         }
 193 #endif
 194
 195         while ( (i = getopt( argc, argv,
 196                              "d:f:ia:p:s:u"
 197 #ifdef LOG_LOCAL4
 198                              "l:"
 199 #endif
 200 #ifdef SLAPD_BDB2
 201                              "t"
 202 #endif
 203 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 204                              "u:g:"
 205 #endif
 206 #ifdef LDAP_CONNECTIONLESS
 207                                  "c"
 208 #endif
 209 #ifdef HAVE_WINSOCK
 210                                  "n:"
 211 #endif
 212 #ifdef HAVE_TLS
 213                              "P:T"
 214 #endif
 215                              )) != EOF ) {
 216                 switch ( i ) {
 217                 case 'a':       /* bind address */
 218 #ifdef HAVE_WINSOCK
 219                         if(!(bind_addr.sin_addr.S_un.S_addr = inet_addr(optarg)))
 220 #else
 221                         if(!inet_aton(optarg, &bind_addr.sin_addr))
 222 #endif
 223                         {
 224                                 fprintf(stderr, "invalid address (%s) for -a option", optarg);
 225                         }
 226 #ifdef HAVE_TLS
 227 #ifdef HAVE_WINSOCK
 228                         tls_bind_addr.sin_addr.S_un.S_addr = inet_addr(optarg);
 229 #else
 230                         inet_aton(optarg, &tls_bind_addr.sin_addr);
 231 #endif
 232 #endif
 233             break;
 234
 235 #ifdef LDAP_DEBUG
 236                 case 'd':       /* turn on debugging */
 237                         if ( optarg[0] == '?' ) {
 238                                 printf( "Debug levels:\n" );
 239                                 printf( "\tLDAP_DEBUG_TRACE\t%d\n",
 240                                     LDAP_DEBUG_TRACE );
 241                                 printf( "\tLDAP_DEBUG_PACKETS\t%d\n",
 242                                     LDAP_DEBUG_PACKETS );
 243                                 printf( "\tLDAP_DEBUG_ARGS\t\t%d\n",
 244                                     LDAP_DEBUG_ARGS );
 245                                 printf( "\tLDAP_DEBUG_CONNS\t%d\n",
 246                                     LDAP_DEBUG_CONNS );
 247                                 printf( "\tLDAP_DEBUG_BER\t\t%d\n",
 248                                     LDAP_DEBUG_BER );
 249                                 printf( "\tLDAP_DEBUG_FILTER\t%d\n",
 250                                     LDAP_DEBUG_FILTER );
 251                                 printf( "\tLDAP_DEBUG_CONFIG\t%d\n",
 252                                     LDAP_DEBUG_CONFIG );
 253                                 printf( "\tLDAP_DEBUG_ACL\t\t%d\n",
 254                                     LDAP_DEBUG_ACL );
 255                                 printf( "\tLDAP_DEBUG_STATS\t%d\n",
 256                                     LDAP_DEBUG_STATS );
 257                                 printf( "\tLDAP_DEBUG_STATS2\t%d\n",
 258                                     LDAP_DEBUG_STATS2 );
 259                                 printf( "\tLDAP_DEBUG_SHELL\t%d\n",
 260                                     LDAP_DEBUG_SHELL );
 261                                 printf( "\tLDAP_DEBUG_PARSE\t%d\n",
 262                                     LDAP_DEBUG_PARSE );
 263                                 printf( "\tLDAP_DEBUG_ANY\t\t%d\n",
 264                                     LDAP_DEBUG_ANY );
 265                                 exit( 0 );
 266                         } else {
 267                                 slap_debug |= atoi( optarg );
 268                         }
 269                         break;
 270 #else
 271                 case 'd':       /* turn on debugging */
 272                         fprintf( stderr,
 273                             "must compile with LDAP_DEBUG for debugging\n" );
 274                         break;
 275 #endif
 276
 277                 case 'f':       /* read config file */
 278                         configfile = ch_strdup( optarg );
 279                         break;
 280
 281                 case 'i':       /* run from inetd */
 282                         inetd = 1;
 283                         break;
 284
 285                 case 'p': {     /* port on which to listen */
 286                                 port = (short)atoi( optarg );
 287                                 if(! port ) {
 288                                         fprintf(stderr, "-p %s must be numeric\n", optarg);
 289                                 } else {
 290                                         bind_addr.sin_port = htons(port);
 291                                 }
 292                         } break;
 293
 294 #ifdef HAVE_TLS
 295                 case 'P': {     /* port on which to listen for TLS */
 296                                 tls_port = (short)atoi( optarg );
 297                                 if(! tls_port ) {
 298                                         fprintf(stderr, "-P %s must be numeric\n", optarg);
 299                                 } else {
 300                                         tls_bind_addr.sin_port = htons(tls_port);
 301                                 }
 302                         } break;
 303 #endif
 304
 305                 case 's':       /* set syslog level */
 306                         ldap_syslog = atoi( optarg );
 307                         break;
 308
 309 #ifdef LOG_LOCAL4
 310                 case 'l':       /* set syslog local user */
 311                         syslogUser = cnvt_str2int( optarg, syslog_types,
 312                                            DEFAULT_SYSLOG_USER );
 313                         break;
 314 #endif
 315
 316 #ifdef LDAP_CONNECTIONLESS
 317                 case 'c':       /* do connectionless (udp) */
 318                         udp = 1;
 319                         break;
 320 #endif
 321
 322 #ifdef SLAPD_BDB2
 323                 case 't':  /* timed server */
 324                         serverMode = SLAP_TIMEDSERVER_MODE;
 325                         break;
 326 #endif
 327
 328 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 329                 case 'u':       /* user name */
 330                         if( username ) free(username);
 331                         username = ch_strdup( optarg );
 332                         break;
 333
 334                 case 'g':       /* group name */
 335                         if( groupname ) free(groupname);
 336                         groupname = ch_strdup( optarg );
 337                         break;
 338 #endif /* SETUID && GETUID */
 339 #ifdef HAVE_WINSOCK
 340                 case 'n':  /* NT service name */
 341                         NTservice = ch_strdup( optarg );
 342                         break;
 343 #endif
 344 #ifdef HAVE_TLS
 345                 case 'T':  /* Bind on TLS port */
 346                         use_tls_port = 1;
 347 #endif
 348                 default:
 349                         usage( argv[0] );
 350                         rc = 1;
 351                         SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 15 );
 352                         goto stop;
 353                 }
 354         }
 355
 356         ber_set_option(NULL, LBER_OPT_DEBUG_LEVEL, &slap_debug);
 357         ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &slap_debug);
 358         ldif_debug = slap_debug;
 359
 360         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 361
 362         if ( (serverName = strrchr( argv[0], *LDAP_DIRSEP )) == NULL ) {
 363                 serverName = ch_strdup( argv[0] );
 364         } else {
 365                 serverName = ch_strdup( serverName + 1 );
 366         }
 367
 368 #ifdef LOG_LOCAL4
 369         openlog( serverName, OPENLOG_OPTIONS, syslogUser );
 370 #else
 371         openlog( serverName, OPENLOG_OPTIONS );
 372 #endif
 373
 374 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 375         if ( username != NULL || groupname != NULL )
 376                 slap_init_user( username, groupname );
 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 ( read_config( configfile ) != 0 ) {
 386                 rc = 1;
 387                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 19 );
 388                 goto destroy;
 389         }
 390
 391         tcps = set_socket( inetd ? NULL : &bind_addr );
 392         if ( tcps == -1 )
 393                 goto destroy;
 394 #ifdef HAVE_TLS
 395         if ( use_tls_port ) {
 396                 tls_tcps = set_socket( inetd ? NULL : &tls_bind_addr );
 397                 if ( tls_tcps == -1 )
 398                         goto destroy;
 399         } else {
 400                 tls_tcps = -1;
 401         }
 402 #endif
 403
 404         (void) SIGNAL( LDAP_SIGUSR1, slap_do_nothing );
 405         (void) SIGNAL( LDAP_SIGUSR2, slap_set_shutdown );
 406 #ifdef SIGPIPE
 407         (void) SIGNAL( SIGPIPE, SIG_IGN );
 408 #endif
 409 #ifdef SIGHUP
 410         (void) SIGNAL( SIGHUP, slap_set_shutdown );
 411 #endif
 412         (void) SIGNAL( SIGINT, slap_set_shutdown );
 413         (void) SIGNAL( SIGTERM, slap_set_shutdown );
 414 #ifdef LDAP_SIGCHLD
 415         (void) SIGNAL( LDAP_SIGCHLD, wait4child );
 416 #endif
 417 #ifdef SIGBREAK
 418         /* SIGBREAK is generated when Ctrl-Break is pressed. */
 419         (void) SIGNAL( SIGBREAK, slap_set_shutdown );
 420 #endif
 421
 422 #ifndef HAVE_WINSOCK
 423         if(!inetd) {
 424 #ifdef LDAP_DEBUG
 425                 lutil_detach( ldap_debug, 0 );
 426 #else
 427                 lutil_detach( 0, 0 );
 428 #endif
 429         }
 430 #endif /* HAVE_WINSOC */
 431
 432         if ( slap_startup(-1)  != 0 ) {
 433                 rc = 1;
 434                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 435                 goto shutdown;
 436         }
 437
 438         if(!inetd) {
 439                 FILE *fp;
 440
 441                 args.addr = &bind_addr;
 442 #ifdef HAVE_TLS
 443                 args.tls_addr = &tls_bind_addr;
 444 #endif
 445
 446                 Debug( LDAP_DEBUG_ANY, "slapd starting\n", 0, 0, 0 );
 447
 448                 if (( slapd_pid_file != NULL ) &&
 449                         (( fp = fopen( slapd_pid_file, "w" )) != NULL ))
 450                 {
 451                         fprintf( fp, "%d\n", (int) getpid() );
 452                         fclose( fp );
 453                 }
 454
 455                 if (( slapd_args_file != NULL ) &&
 456                         (( fp = fopen( slapd_args_file, "w" )) != NULL ))
 457                 {
 458                         for ( i = 0; i < g_argc; i++ ) {
 459                                 fprintf( fp, "%s ", g_argv[i] );
 460                         }
 461                         fprintf( fp, "\n" );
 462                         fclose( fp );
 463                 }
 464
 465         } else {
 466                 args.addr = NULL;
 467 #ifdef HAVE_TLS
 468                 args.tls_addr = NULL;
 469 #endif
 470         }
 471         args.tcps = tcps;
 472 #ifdef HAVE_TLS
 473         args.tls_tcps = tls_tcps;
 474 #endif
 475
 476         time( &starttime );
 477 #ifdef HAVE_WINSOCK
 478         LogSlapdStartedEvent( NTservice, slap_debug, configfile, port, udp );
 479 #endif
 480
 481         rc = slapd_daemon( &args );
 482
 483 #ifdef HAVE_WINSOCK
 484         /* Throw away the event that we used during the startup process. */
 485         if ( is_NT_Service )
 486                 ldap_pvt_thread_cond_destroy( &started_event );
 487 #endif
 488
 489 shutdown:
 490         /* remember an error during shutdown */
 491         rc |= slap_shutdown(-1);
 492 destroy:
 493         /* remember an error during destroy */
 494         rc |= slap_destroy();
 495
 496 stop:
 497 #ifdef HAVE_WINSOCK
 498         LogSlapdStoppedEvent( NTservice );
 499 #endif
 500         Debug( LDAP_DEBUG_ANY, "slapd stopped.\n", 0, 0, 0 );
 501 #ifdef HAVE_WINSOCK
 502         ReportSlapdShutdownComplete();
 503 #endif
 504
 505     closelog();
 506
 507         MAIN_RETURN(rc);
 508 }
 509
 510
 511 #ifdef LDAP_SIGCHLD
 512
 513 /*
 514  *  Catch and discard terminated child processes, to avoid zombies.
 515  */
 516
 517 static RETSIGTYPE
 518 wait4child( int sig )
 519 {
 520     int save_errno = errno;
 521
 522 #ifdef WNOHANG
 523     errno = 0;
 524 #ifdef HAVE_WAITPID
 525     while ( waitpid( (pid_t)-1, NULL, WNOHANG ) >= 0 || errno == EINTR )
 526         ;       /* NULL */
 527 #else
 528     while ( wait3( NULL, WNOHANG, NULL ) >= 0 || errno == EINTR )
 529         ;       /* NULL */
 530 #endif
 531 #else
 532     (void) wait( NULL );
 533 #endif
 534     (void) SIGNAL( sig, wait4child );
 535     errno = save_errno;
 536 }
 537
 538 #endif /* SIGCHLD || SIGCLD */
 539
 540
 541 #ifdef LOG_LOCAL4
 542
 543 /*
 544  *  Convert a string to an integer by means of a dispatcher table
 545  *  if the string is not in the table return the default
 546  */
 547
 548 static int
 549 cnvt_str2int( char *stringVal, STRDISP_P dispatcher, int defaultVal )
 550 {
 551     int        retVal = defaultVal;
 552     STRDISP_P  disp;
 553
 554     for (disp = dispatcher; disp->stringVal; disp++) {
 555
 556         if (!strncasecmp (stringVal, disp->stringVal, disp->abbr)) {
 557
 558             retVal = disp->intVal;
 559             break;
 560
 561         }
 562     }
 563
 564     return (retVal);
 565
 566 } /* cnvt_str2int */
 567
 568 #endif  /* LOG_LOCAL4 */