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 "ldapconfig.h"
  15 #include "slap.h"
  16 #ifndef HAVE_WINSOCK
  17 #include "lutil.h"                      /* Get lutil_detach() */
  18 #endif
  19
  20 #ifdef LDAP_SIGCHLD
  21 static RETSIGTYPE wait4child( int sig );
  22 #endif
  23
  24 #ifdef HAVE_WINSOCK
  25 #define SERVICE_NAME "OpenLDAP"
  26
  27 struct sockaddr_in      bind_addr;
  28
  29 // in nt_main.c
  30 extern SERVICE_STATUS                   SLAPDServiceStatus;
  31 extern SERVICE_STATUS_HANDLE    hSLAPDServiceStatus;
  32 extern ldap_pvt_thread_cond_t   started_event,          stopped_event;
  33 extern int        is_NT_Service;
  34
  35 void LogSlapdStartedEvent( char *svc, int slap_debug, char *configfile, short port, int udp );
  36 void LogSlapdStoppedEvent( char *svc );
  37
  38 void CommenceStartupProcessing( LPCTSTR serviceName,
  39                                                            void(*stopper)(int));
  40 void ReportSlapdShutdownComplete( void );
  41 void *getRegParam( char *svc, char *value );
  42
  43 #define SERVICE_EXIT( e, n ) \
  44                 if ( is_NT_Service ) \
  45 { \
  46                         SLAPDServiceStatus.dwWin32ExitCode                              = e; \
  47                         SLAPDServiceStatus.dwServiceSpecificExitCode    = n; \
  48 }
  49 #else
  50 #define SERVICE_EXIT( e, n )
  51 #endif
  52
  53 short port = LDAP_PORT;
  54 /*
  55  * when more than one slapd is running on one machine, each one might have
  56  * it's own LOCAL for syslogging and must have its own pid/args files
  57  */
  58
  59 #ifndef HAVE_MKVERSION
  60 const char Versionstr[] =
  61         OPENLDAP_PACKAGE " " OPENLDAP_VERSION " Standalone LDAP Server (slapd)";
  62 #endif
  63
  64 #ifdef LOG_LOCAL4
  65
  66 #define DEFAULT_SYSLOG_USER  LOG_LOCAL4
  67
  68 typedef struct _str2intDispatch {
  69         char    *stringVal;
  70         int      abbr;
  71         int      intVal;
  72 } STRDISP, *STRDISP_P;
  73
  74
  75 /* table to compute syslog-options to integer */
  76 static STRDISP  syslog_types[] = {
  77     { "LOCAL0",         6, LOG_LOCAL0 },
  78     { "LOCAL1",         6, LOG_LOCAL1 },
  79     { "LOCAL2",         6, LOG_LOCAL2 },
  80     { "LOCAL3",         6, LOG_LOCAL3 },
  81     { "LOCAL4",         6, LOG_LOCAL4 },
  82     { "LOCAL5",         6, LOG_LOCAL5 },
  83     { "LOCAL6",         6, LOG_LOCAL6 },
  84     { "LOCAL7",         6, LOG_LOCAL7 },
  85     { NULL }
  86 };
  87
  88 static int   cnvt_str2int( char *, STRDISP_P, int );
  89
  90 #endif  /* LOG_LOCAL4 */
  91
  92
  93 static void
  94 usage( char *name )
  95 {
  96         fprintf( stderr, "usage: %s [-d ?|debuglevel] [-f configfile] [-p portnumber] [-s sysloglevel]", name );
  97     fprintf( stderr, "\n        [-a bind-address] [-i] [-u]" );
  98 #if LDAP_CONNECTIONLESS
  99         fprintf( stderr, " [-c]" );
 100 #endif
 101 #ifdef SLAPD_BDB2
 102     fprintf( stderr, " [-t]" );
 103 #endif
 104 #ifdef LOG_LOCAL4
 105     fprintf( stderr, " [-l sysloguser]" );
 106 #endif
 107 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 108     fprintf( stderr, " [-u user] [-g group]" );
 109 #endif
 110     fprintf( stderr, "\n" );
 111 }
 112
 113 time_t starttime;
 114 struct sockaddr_in      bind_addr;
 115 int tcps;
 116
 117 #ifdef HAVE_WINSOCK
 118 void WINAPI ServiceMain( DWORD argc, LPTSTR *argv )
 119 {
 120 #else
 121 void main( int argc, char **argv )
 122 {
 123 #endif
 124
 125         int             i;
 126         int             inetd = 0;
 127         int             rc;
 128         struct sockaddr_in      *slapd_addr;
 129         int             udp;
 130 #ifdef LOG_LOCAL4
 131     int     syslogUser = DEFAULT_SYSLOG_USER;
 132 #endif
 133 #ifdef HAVE_WINSOCK
 134         char            *configfile = ".\\slapd.conf";
 135 #else
 136         char            *configfile = SLAPD_DEFAULT_CONFIGFILE;
 137 #endif
 138         char        *serverName;
 139         int         serverMode = SLAP_SERVER_MODE;
 140
 141         (void) memset( (void*) &bind_addr, '\0', sizeof(bind_addr));
 142         bind_addr.sin_family = AF_INET;
 143         bind_addr.sin_addr.s_addr = htonl(INADDR_ANY);
 144         bind_addr.sin_port = htons(port);
 145
 146         g_argc = argc;
 147         g_argv = argv;
 148
 149 #ifdef HAVE_WINSOCK
 150         //if ( is_NT_Service )
 151         {
 152                 int *newPort;
 153                 int *newDebugLevel;
 154                 char *newConfigFile;
 155                 ldap_debug = 0xffff;
 156                 if ( is_NT_Service ) CommenceStartupProcessing( SERVICE_NAME, slap_set_shutdown );
 157                 newPort = (int*)getRegParam( NULL, "Port" );
 158                 if ( newPort != NULL )
 159                 {
 160                         port = *newPort;
 161                         bind_addr.sin_port = htons(port);
 162                         Debug ( LDAP_DEBUG_ANY, "new port from registry is: %d\n", port, 0, 0 );
 163                 }
 164                 newDebugLevel = (int*)getRegParam( NULL, "DebugLevel" );
 165                 if ( newDebugLevel != NULL )
 166                 {
 167                         slap_debug = *newDebugLevel;
 168                         Debug( LDAP_DEBUG_ANY, "new debug level from registry is: %d\n", slap_debug, 0, 0 );
 169                 }
 170                 newConfigFile = (char*)getRegParam( NULL, "ConfigFile" );
 171                 if ( newConfigFile != NULL )
 172                 {
 173                         configfile = newConfigFile;
 174                         Debug ( LDAP_DEBUG_ANY, "new config file from registry is: %s\n", configfile, 0, 0 );
 175                 }
 176         }
 177
 178 #endif
 179
 180         while ( (i = getopt( argc, argv,
 181                              "d:f:ia:p:s:u"
 182 #ifdef LOG_LOCAL4
 183                              "l:"
 184 #endif
 185 #ifdef SLAPD_BDB2
 186                              "t"
 187 #endif
 188 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 189                              "u:g:"
 190 #endif
 191 #ifdef LDAP_CONNECTIONLESS
 192                                  "c"
 193 #endif
 194                              )) != EOF ) {
 195                 switch ( i ) {
 196                 case 'a':       /* bind address */
 197 #ifdef HAVE_WINSOCK
 198                         if(!(bind_addr.sin_addr.S_un.S_addr = inet_addr(optarg)))
 199 #else
 200                         if(!inet_aton(optarg, &bind_addr.sin_addr))
 201 #endif
 202                         {
 203                                 fprintf(stderr, "invalid address (%s) for -a option", optarg);
 204                         }
 205             break;
 206
 207 #ifdef LDAP_DEBUG
 208                 case 'd':       /* turn on debugging */
 209                         if ( optarg[0] == '?' ) {
 210                                 printf( "Debug levels:\n" );
 211                                 printf( "\tLDAP_DEBUG_TRACE\t%d\n",
 212                                     LDAP_DEBUG_TRACE );
 213                                 printf( "\tLDAP_DEBUG_PACKETS\t%d\n",
 214                                     LDAP_DEBUG_PACKETS );
 215                                 printf( "\tLDAP_DEBUG_ARGS\t\t%d\n",
 216                                     LDAP_DEBUG_ARGS );
 217                                 printf( "\tLDAP_DEBUG_CONNS\t%d\n",
 218                                     LDAP_DEBUG_CONNS );
 219                                 printf( "\tLDAP_DEBUG_BER\t\t%d\n",
 220                                     LDAP_DEBUG_BER );
 221                                 printf( "\tLDAP_DEBUG_FILTER\t%d\n",
 222                                     LDAP_DEBUG_FILTER );
 223                                 printf( "\tLDAP_DEBUG_CONFIG\t%d\n",
 224                                     LDAP_DEBUG_CONFIG );
 225                                 printf( "\tLDAP_DEBUG_ACL\t\t%d\n",
 226                                     LDAP_DEBUG_ACL );
 227                                 printf( "\tLDAP_DEBUG_STATS\t%d\n",
 228                                     LDAP_DEBUG_STATS );
 229                                 printf( "\tLDAP_DEBUG_STATS2\t%d\n",
 230                                     LDAP_DEBUG_STATS2 );
 231                                 printf( "\tLDAP_DEBUG_SHELL\t%d\n",
 232                                     LDAP_DEBUG_SHELL );
 233                                 printf( "\tLDAP_DEBUG_PARSE\t%d\n",
 234                                     LDAP_DEBUG_PARSE );
 235                                 printf( "\tLDAP_DEBUG_ANY\t\t%d\n",
 236                                     LDAP_DEBUG_ANY );
 237                                 exit( 0 );
 238                         } else {
 239                                 slap_debug |= atoi( optarg );
 240                         }
 241                         break;
 242 #else
 243                 case 'd':       /* turn on debugging */
 244                         fprintf( stderr,
 245                             "must compile with LDAP_DEBUG for debugging\n" );
 246                         break;
 247 #endif
 248
 249                 case 'f':       /* read config file */
 250                         configfile = ch_strdup( optarg );
 251                         break;
 252
 253                 case 'i':       /* run from inetd */
 254                         inetd = 1;
 255                         break;
 256
 257                 case 'p': {     /* port on which to listen */
 258                                 port = (short)atoi( optarg );
 259                                 if(! port ) {
 260                                         fprintf(stderr, "-p %s must be numeric\n", optarg);
 261                                 } else {
 262                                         bind_addr.sin_port = htons(port);
 263                                 }
 264                         } break;
 265
 266                 case 's':       /* set syslog level */
 267                         ldap_syslog = atoi( optarg );
 268                         break;
 269
 270 #ifdef LOG_LOCAL4
 271                 case 'l':       /* set syslog local user */
 272                         syslogUser = cnvt_str2int( optarg, syslog_types,
 273                                            DEFAULT_SYSLOG_USER );
 274                         break;
 275 #endif
 276
 277 #ifdef LDAP_CONNECTIONLESS
 278                 case 'c':       /* do connectionless (udp) */
 279                         udp = 1;
 280                         break;
 281 #endif
 282
 283 #ifdef SLAPD_BDB2
 284                 case 't':  /* timed server */
 285                         serverMode = SLAP_TIMEDSERVER_MODE;
 286                         break;
 287 #endif
 288
 289 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 290                 case 'u':       /* user name */
 291                         if( username ) free(username);
 292                         username = ch_strdup( optarg );
 293                         break;
 294
 295                 case 'g':       /* group name */
 296                         if( groupname ) free(groupname);
 297                         groupname = ch_strdup( optarg );
 298                         break;
 299 #endif /* SETUID && GETUID */
 300
 301                 default:
 302                         usage( argv[0] );
 303                         rc = 1;
 304                         SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 15 );
 305                         goto stop;
 306                 }
 307         }
 308
 309         ber_set_option(NULL, LBER_OPT_DEBUG_LEVEL, &slap_debug);
 310         ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &slap_debug);
 311         ldif_debug = slap_debug;
 312
 313         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 314
 315         if ( (serverName = strrchr( argv[0], '/' )) == NULL ) {
 316                 serverName = ch_strdup( argv[0] );
 317         } else {
 318                 serverName = ch_strdup( serverName + 1 );
 319         }
 320
 321 #ifdef LOG_LOCAL4
 322         openlog( serverName, OPENLOG_OPTIONS, syslogUser );
 323 #else
 324         openlog( serverName, OPENLOG_OPTIONS );
 325 #endif
 326
 327 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 328         if ( username != NULL || groupname != NULL )
 329                 slap_init_user( username, groupname );
 330 #endif
 331
 332         if ( slap_init( serverMode, serverName ) != 0 ) {
 333                 rc = 1;
 334                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 18 );
 335                 goto destroy;
 336         }
 337
 338         if ( read_config( configfile ) != 0 ) {
 339                 rc = 1;
 340                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 19 );
 341                 goto destroy;
 342         }
 343
 344
 345         tcps = set_socket( inetd ? NULL : &bind_addr );
 346
 347         (void) SIGNAL( LDAP_SIGUSR1, slap_do_nothing );
 348         (void) SIGNAL( LDAP_SIGUSR2, slap_set_shutdown );
 349 #ifdef SIGPIPE
 350         (void) SIGNAL( SIGPIPE, SIG_IGN );
 351 #endif
 352 #ifdef SIGHUP
 353         (void) SIGNAL( SIGHUP, slap_set_shutdown );
 354 #endif
 355         (void) SIGNAL( SIGINT, slap_set_shutdown );
 356         (void) SIGNAL( SIGTERM, slap_set_shutdown );
 357 #ifdef LDAP_SIGCHLD
 358         (void) SIGNAL( LDAP_SIGCHLD, wait4child );
 359 #endif
 360 #ifdef HAVE_WINSOCK
 361         // SIGBREAK is generated when Ctrl-Break is pressed.
 362         (void) SIGNAL( SIGBREAK, slap_set_shutdown );
 363 #endif
 364
 365 #ifndef HAVE_WINSOCK
 366         if(!inetd) {
 367 #ifdef LDAP_DEBUG
 368                 lutil_detach( ldap_debug, 0 );
 369 #else
 370                 lutil_detach( 0, 0 );
 371 #endif
 372         }
 373 #endif /* HAVE_WINSOC */
 374
 375         if ( slap_startup(-1)  != 0 ) {
 376                 rc = 1;
 377                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 378                 goto shutdown;
 379         }
 380
 381         if(!inetd) {
 382                 FILE *fp;
 383
 384                 slapd_addr = &bind_addr;
 385
 386                 Debug( LDAP_DEBUG_ANY, "slapd starting\n", 0, 0, 0 );
 387
 388                 if (( slapd_pid_file != NULL ) &&
 389                         (( fp = fopen( slapd_pid_file, "w" )) != NULL ))
 390                 {
 391                         fprintf( fp, "%d\n", (int) getpid() );
 392                         fclose( fp );
 393                 }
 394
 395                 if (( slapd_args_file != NULL ) &&
 396                         (( fp = fopen( slapd_args_file, "w" )) != NULL ))
 397                 {
 398                         for ( i = 0; i < g_argc; i++ ) {
 399                                 fprintf( fp, "%s ", g_argv[i] );
 400                         }
 401                         fprintf( fp, "\n" );
 402                         fclose( fp );
 403                 }
 404
 405         } else {
 406                 slapd_addr = NULL;
 407         }
 408
 409         time( &starttime );
 410 #ifdef HAVE_WINSOCK
 411         LogSlapdStartedEvent( SERVICE_NAME, slap_debug, configfile, port, udp );
 412 #endif
 413         rc = slapd_daemon( slapd_addr, tcps );
 414
 415 #ifdef HAVE_WINSOCK
 416         // Throw away the event that we used during the startup process.
 417         if ( is_NT_Service )
 418                 ldap_pvt_thread_cond_destroy( &started_event );
 419 #endif
 420
 421
 422 shutdown:
 423         /* remember an error during shutdown */
 424         rc |= slap_shutdown(-1);
 425 destroy:
 426         /* remember an error during destroy */
 427         rc |= slap_destroy();
 428
 429 stop:
 430 #ifdef HAVE_WINSOCK
 431         LogSlapdStoppedEvent( SERVICE_NAME );
 432 #endif
 433         Debug( LDAP_DEBUG_ANY, "slapd stopped.\n", 0, 0, 0 );
 434 #ifdef HAVE_WINSOCK
 435         ReportSlapdShutdownComplete();
 436 #endif
 437
 438     closelog();
 439
 440         return;
 441 }
 442
 443
 444 #ifdef LDAP_SIGCHLD
 445
 446 /*
 447  *  Catch and discard terminated child processes, to avoid zombies.
 448  */
 449
 450 static RETSIGTYPE
 451 wait4child( int sig )
 452 {
 453     int save_errno = errno;
 454
 455 #ifdef WNOHANG
 456     errno = 0;
 457 #ifdef HAVE_WAITPID
 458     while ( waitpid( (pid_t)-1, NULL, WNOHANG ) >= 0 || errno == EINTR )
 459         ;       /* NULL */
 460 #else
 461     while ( wait3( NULL, WNOHANG, NULL ) >= 0 || errno == EINTR )
 462         ;       /* NULL */
 463 #endif
 464 #else
 465     (void) wait( NULL );
 466 #endif
 467     (void) SIGNAL( sig, wait4child );
 468     errno = save_errno;
 469 }
 470
 471 #endif /* SIGCHLD || SIGCLD */
 472
 473
 474 #ifdef LOG_LOCAL4
 475
 476 /*
 477  *  Convert a string to an integer by means of a dispatcher table
 478  *  if the string is not in the table return the default
 479  */
 480
 481 static int
 482 cnvt_str2int( char *stringVal, STRDISP_P dispatcher, int defaultVal )
 483 {
 484     int        retVal = defaultVal;
 485     STRDISP_P  disp;
 486
 487     for (disp = dispatcher; disp->stringVal; disp++) {
 488
 489         if (!strncasecmp (stringVal, disp->stringVal, disp->abbr)) {
 490
 491             retVal = disp->intVal;
 492             break;
 493
 494         }
 495     }
 496
 497     return (retVal);
 498
 499 } /* cnvt_str2int */
 500
 501 #endif  /* LOG_LOCAL4 */