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
 152         (void) memset( (void*) &bind_addr, '\0', sizeof(bind_addr));
 153         bind_addr.sin_family = AF_INET;
 154         bind_addr.sin_addr.s_addr = htonl(INADDR_ANY);
 155         bind_addr.sin_port = htons(port);
 156 #ifdef HAVE_TLS
 157         tls_bind_addr.sin_family = AF_INET;
 158         tls_bind_addr.sin_addr.s_addr = htonl(INADDR_ANY);
 159         tls_bind_addr.sin_port = htons(tls_port);
 160 #endif
 161
 162         g_argc = argc;
 163         g_argv = argv;
 164
 165 #ifdef HAVE_WINSOCK
 166         {
 167                 int *newPort;
 168                 int *newDebugLevel;
 169                 char *newConfigFile;
 170                 ldap_debug = 0xffff;
 171                 if ( is_NT_Service ) CommenceStartupProcessing( NTservice, slap_set_shutdown );
 172                 newPort = (int*)getRegParam( NULL, "Port" );
 173                 if ( newPort != NULL )
 174                 {
 175                         port = *newPort;
 176                         bind_addr.sin_port = htons(port);
 177                         Debug ( LDAP_DEBUG_ANY, "new port from registry is: %d\n", port, 0, 0 );
 178                 }
 179                 newDebugLevel = (int*)getRegParam( NULL, "DebugLevel" );
 180                 if ( newDebugLevel != NULL )
 181                 {
 182                         slap_debug = *newDebugLevel;
 183                         Debug( LDAP_DEBUG_ANY, "new debug level from registry is: %d\n", slap_debug, 0, 0 );
 184                 }
 185                 newConfigFile = (char*)getRegParam( NULL, "ConfigFile" );
 186                 if ( newConfigFile != NULL )
 187                 {
 188                         configfile = newConfigFile;
 189                         Debug ( LDAP_DEBUG_ANY, "new config file from registry is: %s\n", configfile, 0, 0 );
 190                 }
 191         }
 192 #endif
 193
 194         while ( (i = getopt( argc, argv,
 195                              "d:f:ia:p:s:u"
 196 #ifdef LOG_LOCAL4
 197                              "l:"
 198 #endif
 199 #ifdef SLAPD_BDB2
 200                              "t"
 201 #endif
 202 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 203                              "u:g:"
 204 #endif
 205 #ifdef LDAP_CONNECTIONLESS
 206                                  "c"
 207 #endif
 208 #ifdef HAVE_WINSOCK
 209                                  "n:"
 210 #endif
 211 #ifdef HAVE_TLS
 212                              "P:"
 213 #endif
 214                              )) != EOF ) {
 215                 switch ( i ) {
 216                 case 'a':       /* bind address */
 217 #ifdef HAVE_WINSOCK
 218                         if(!(bind_addr.sin_addr.S_un.S_addr = inet_addr(optarg)))
 219 #else
 220                         if(!inet_aton(optarg, &bind_addr.sin_addr))
 221 #endif
 222                         {
 223                                 fprintf(stderr, "invalid address (%s) for -a option", optarg);
 224                         }
 225 #ifdef HAVE_TLS
 226 #ifdef HAVE_WINSOCK
 227                         tls_bind_addr.sin_addr.S_un.S_addr = inet_addr(optarg);
 228 #else
 229                         inet_aton(optarg, &tls_bind_addr.sin_addr);
 230 #endif
 231 #endif
 232             break;
 233
 234 #ifdef LDAP_DEBUG
 235                 case 'd':       /* turn on debugging */
 236                         if ( optarg[0] == '?' ) {
 237                                 printf( "Debug levels:\n" );
 238                                 printf( "\tLDAP_DEBUG_TRACE\t%d\n",
 239                                     LDAP_DEBUG_TRACE );
 240                                 printf( "\tLDAP_DEBUG_PACKETS\t%d\n",
 241                                     LDAP_DEBUG_PACKETS );
 242                                 printf( "\tLDAP_DEBUG_ARGS\t\t%d\n",
 243                                     LDAP_DEBUG_ARGS );
 244                                 printf( "\tLDAP_DEBUG_CONNS\t%d\n",
 245                                     LDAP_DEBUG_CONNS );
 246                                 printf( "\tLDAP_DEBUG_BER\t\t%d\n",
 247                                     LDAP_DEBUG_BER );
 248                                 printf( "\tLDAP_DEBUG_FILTER\t%d\n",
 249                                     LDAP_DEBUG_FILTER );
 250                                 printf( "\tLDAP_DEBUG_CONFIG\t%d\n",
 251                                     LDAP_DEBUG_CONFIG );
 252                                 printf( "\tLDAP_DEBUG_ACL\t\t%d\n",
 253                                     LDAP_DEBUG_ACL );
 254                                 printf( "\tLDAP_DEBUG_STATS\t%d\n",
 255                                     LDAP_DEBUG_STATS );
 256                                 printf( "\tLDAP_DEBUG_STATS2\t%d\n",
 257                                     LDAP_DEBUG_STATS2 );
 258                                 printf( "\tLDAP_DEBUG_SHELL\t%d\n",
 259                                     LDAP_DEBUG_SHELL );
 260                                 printf( "\tLDAP_DEBUG_PARSE\t%d\n",
 261                                     LDAP_DEBUG_PARSE );
 262                                 printf( "\tLDAP_DEBUG_ANY\t\t%d\n",
 263                                     LDAP_DEBUG_ANY );
 264                                 exit( 0 );
 265                         } else {
 266                                 slap_debug |= atoi( optarg );
 267                         }
 268                         break;
 269 #else
 270                 case 'd':       /* turn on debugging */
 271                         fprintf( stderr,
 272                             "must compile with LDAP_DEBUG for debugging\n" );
 273                         break;
 274 #endif
 275
 276                 case 'f':       /* read config file */
 277                         configfile = ch_strdup( optarg );
 278                         break;
 279
 280                 case 'i':       /* run from inetd */
 281                         inetd = 1;
 282                         break;
 283
 284                 case 'p': {     /* port on which to listen */
 285                                 port = (short)atoi( optarg );
 286                                 if(! port ) {
 287                                         fprintf(stderr, "-p %s must be numeric\n", optarg);
 288                                 } else {
 289                                         bind_addr.sin_port = htons(port);
 290                                 }
 291                         } break;
 292
 293 #ifdef HAVE_TLS
 294                 case 'P': {     /* port on which to listen for TLS */
 295                                 tls_port = (short)atoi( optarg );
 296                                 if(! tls_port ) {
 297                                         fprintf(stderr, "-P %s must be numeric\n", optarg);
 298                                 } else {
 299                                         tls_bind_addr.sin_port = htons(tls_port);
 300                                 }
 301                         } break;
 302 #endif
 303
 304                 case 's':       /* set syslog level */
 305                         ldap_syslog = atoi( optarg );
 306                         break;
 307
 308 #ifdef LOG_LOCAL4
 309                 case 'l':       /* set syslog local user */
 310                         syslogUser = cnvt_str2int( optarg, syslog_types,
 311                                            DEFAULT_SYSLOG_USER );
 312                         break;
 313 #endif
 314
 315 #ifdef LDAP_CONNECTIONLESS
 316                 case 'c':       /* do connectionless (udp) */
 317                         udp = 1;
 318                         break;
 319 #endif
 320
 321 #ifdef SLAPD_BDB2
 322                 case 't':  /* timed server */
 323                         serverMode = SLAP_TIMEDSERVER_MODE;
 324                         break;
 325 #endif
 326
 327 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 328                 case 'u':       /* user name */
 329                         if( username ) free(username);
 330                         username = ch_strdup( optarg );
 331                         break;
 332
 333                 case 'g':       /* group name */
 334                         if( groupname ) free(groupname);
 335                         groupname = ch_strdup( optarg );
 336                         break;
 337 #endif /* SETUID && GETUID */
 338 #ifdef HAVE_WINSOCK
 339                 case 'n':  /* NT service name */
 340                         NTservice = ch_strdup( optarg );
 341                         break;
 342 #endif
 343                 default:
 344                         usage( argv[0] );
 345                         rc = 1;
 346                         SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 15 );
 347                         goto stop;
 348                 }
 349         }
 350
 351         ber_set_option(NULL, LBER_OPT_DEBUG_LEVEL, &slap_debug);
 352         ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, &slap_debug);
 353         ldif_debug = slap_debug;
 354
 355         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 356
 357         if ( (serverName = strrchr( argv[0], *LDAP_DIRSEP )) == NULL ) {
 358                 serverName = ch_strdup( argv[0] );
 359         } else {
 360                 serverName = ch_strdup( serverName + 1 );
 361         }
 362
 363 #ifdef LOG_LOCAL4
 364         openlog( serverName, OPENLOG_OPTIONS, syslogUser );
 365 #else
 366         openlog( serverName, OPENLOG_OPTIONS );
 367 #endif
 368
 369 #if defined(HAVE_SETUID) && defined(HAVE_SETGID)
 370         if ( username != NULL || groupname != NULL )
 371                 slap_init_user( username, groupname );
 372 #endif
 373
 374         if ( slap_init( serverMode, serverName ) != 0 ) {
 375                 rc = 1;
 376                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 18 );
 377                 goto destroy;
 378         }
 379
 380         if ( read_config( configfile ) != 0 ) {
 381                 rc = 1;
 382                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 19 );
 383                 goto destroy;
 384         }
 385
 386         tcps = set_socket( inetd ? NULL : &bind_addr );
 387         if ( tcps == -1 )
 388                 goto destroy;
 389 #ifdef HAVE_TLS
 390         tls_tcps = set_socket( inetd ? NULL : &tls_bind_addr );
 391         if ( tls_tcps == -1 )
 392                 goto destroy;
 393 #endif
 394
 395         (void) SIGNAL( LDAP_SIGUSR1, slap_do_nothing );
 396         (void) SIGNAL( LDAP_SIGUSR2, slap_set_shutdown );
 397 #ifdef SIGPIPE
 398         (void) SIGNAL( SIGPIPE, SIG_IGN );
 399 #endif
 400 #ifdef SIGHUP
 401         (void) SIGNAL( SIGHUP, slap_set_shutdown );
 402 #endif
 403         (void) SIGNAL( SIGINT, slap_set_shutdown );
 404         (void) SIGNAL( SIGTERM, slap_set_shutdown );
 405 #ifdef LDAP_SIGCHLD
 406         (void) SIGNAL( LDAP_SIGCHLD, wait4child );
 407 #endif
 408 #ifdef SIGBREAK
 409         /* SIGBREAK is generated when Ctrl-Break is pressed. */
 410         (void) SIGNAL( SIGBREAK, slap_set_shutdown );
 411 #endif
 412
 413 #ifndef HAVE_WINSOCK
 414         if(!inetd) {
 415 #ifdef LDAP_DEBUG
 416                 lutil_detach( ldap_debug, 0 );
 417 #else
 418                 lutil_detach( 0, 0 );
 419 #endif
 420         }
 421 #endif /* HAVE_WINSOC */
 422
 423         if ( slap_startup(-1)  != 0 ) {
 424                 rc = 1;
 425                 SERVICE_EXIT( ERROR_SERVICE_SPECIFIC_ERROR, 20 );
 426                 goto shutdown;
 427         }
 428
 429         if(!inetd) {
 430                 FILE *fp;
 431
 432                 args.addr = &bind_addr;
 433 #ifdef HAVE_TLS
 434                 args.tls_addr = &tls_bind_addr;
 435 #endif
 436
 437                 Debug( LDAP_DEBUG_ANY, "slapd starting\n", 0, 0, 0 );
 438
 439                 if (( slapd_pid_file != NULL ) &&
 440                         (( fp = fopen( slapd_pid_file, "w" )) != NULL ))
 441                 {
 442                         fprintf( fp, "%d\n", (int) getpid() );
 443                         fclose( fp );
 444                 }
 445
 446                 if (( slapd_args_file != NULL ) &&
 447                         (( fp = fopen( slapd_args_file, "w" )) != NULL ))
 448                 {
 449                         for ( i = 0; i < g_argc; i++ ) {
 450                                 fprintf( fp, "%s ", g_argv[i] );
 451                         }
 452                         fprintf( fp, "\n" );
 453                         fclose( fp );
 454                 }
 455
 456         } else {
 457                 args.addr = NULL;
 458 #ifdef HAVE_TLS
 459                 args.tls_addr = NULL;
 460 #endif
 461         }
 462         args.tcps = tcps;
 463 #ifdef HAVE_TLS
 464         args.tls_tcps = tls_tcps;
 465 #endif
 466
 467         time( &starttime );
 468 #ifdef HAVE_WINSOCK
 469         LogSlapdStartedEvent( NTservice, slap_debug, configfile, port, udp );
 470 #endif
 471
 472         rc = slapd_daemon( &args );
 473
 474 #ifdef HAVE_WINSOCK
 475         /* Throw away the event that we used during the startup process. */
 476         if ( is_NT_Service )
 477                 ldap_pvt_thread_cond_destroy( &started_event );
 478 #endif
 479
 480 shutdown:
 481         /* remember an error during shutdown */
 482         rc |= slap_shutdown(-1);
 483 destroy:
 484         /* remember an error during destroy */
 485         rc |= slap_destroy();
 486
 487 stop:
 488 #ifdef HAVE_WINSOCK
 489         LogSlapdStoppedEvent( NTservice );
 490 #endif
 491         Debug( LDAP_DEBUG_ANY, "slapd stopped.\n", 0, 0, 0 );
 492 #ifdef HAVE_WINSOCK
 493         ReportSlapdShutdownComplete();
 494 #endif
 495
 496     closelog();
 497
 498         MAIN_RETURN(rc);
 499 }
 500
 501
 502 #ifdef LDAP_SIGCHLD
 503
 504 /*
 505  *  Catch and discard terminated child processes, to avoid zombies.
 506  */
 507
 508 static RETSIGTYPE
 509 wait4child( int sig )
 510 {
 511     int save_errno = errno;
 512
 513 #ifdef WNOHANG
 514     errno = 0;
 515 #ifdef HAVE_WAITPID
 516     while ( waitpid( (pid_t)-1, NULL, WNOHANG ) >= 0 || errno == EINTR )
 517         ;       /* NULL */
 518 #else
 519     while ( wait3( NULL, WNOHANG, NULL ) >= 0 || errno == EINTR )
 520         ;       /* NULL */
 521 #endif
 522 #else
 523     (void) wait( NULL );
 524 #endif
 525     (void) SIGNAL( sig, wait4child );
 526     errno = save_errno;
 527 }
 528
 529 #endif /* SIGCHLD || SIGCLD */
 530
 531
 532 #ifdef LOG_LOCAL4
 533
 534 /*
 535  *  Convert a string to an integer by means of a dispatcher table
 536  *  if the string is not in the table return the default
 537  */
 538
 539 static int
 540 cnvt_str2int( char *stringVal, STRDISP_P dispatcher, int defaultVal )
 541 {
 542     int        retVal = defaultVal;
 543     STRDISP_P  disp;
 544
 545     for (disp = dispatcher; disp->stringVal; disp++) {
 546
 547         if (!strncasecmp (stringVal, disp->stringVal, disp->abbr)) {
 548
 549             retVal = disp->intVal;
 550             break;
 551
 552         }
 553     }
 554
 555     return (retVal);
 556
 557 } /* cnvt_str2int */
 558
 559 #endif  /* LOG_LOCAL4 */