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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6
   7 #include "portable.h"
   8
   9 #include <stdio.h>
  10
  11 #include <ac/ctype.h>
  12 #include <ac/errno.h>
  13 #include <ac/signal.h>
  14 #include <ac/socket.h>
  15 #include <ac/string.h>
  16 #include <ac/time.h>
  17 #include <ac/unistd.h>
  18
  19 #include "ldap_pvt.h"
  20 #include "ldap_pvt_thread.h"
  21 #include "lutil.h"
  22 #include "slap.h"
  23
  24 #ifdef HAVE_TCPD
  25 #include <tcpd.h>
  26
  27 int allow_severity = LOG_INFO;
  28 int deny_severity = LOG_NOTICE;
  29 #endif /* TCP Wrappers */
  30
  31 #ifdef LDAP_PF_LOCAL
  32 #include <sys/stat.h>
  33 /* this should go in <ldap.h> as soon as it is accepted */
  34 #define LDAPI_MOD_URLEXT                "x-mod"
  35 #endif /* LDAP_PF_LOCAL */
  36
  37 /* globals */
  38 time_t starttime;
  39 ber_socket_t dtblsize;
  40
  41 Listener **slap_listeners = NULL;
  42
  43 #define SLAPD_LISTEN 10
  44
  45 static ber_socket_t wake_sds[2];
  46
  47 #ifdef NO_THREADS
  48 static int waking;
  49 #define WAKE_LISTENER(w) \
  50 ((w && !waking) ? tcp_write( wake_sds[1], "0", 1 ), waking=1 : 0)
  51 #else
  52 #define WAKE_LISTENER(w) \
  53 do { if (w) tcp_write( wake_sds[1], "0", 1 ); } while(0)
  54 #endif
  55
  56 #ifndef HAVE_WINSOCK
  57 static
  58 #endif
  59 volatile sig_atomic_t slapd_shutdown = 0;
  60
  61 static struct slap_daemon {
  62         ldap_pvt_thread_mutex_t sd_mutex;
  63
  64         int sd_nactives;
  65
  66 #ifndef HAVE_WINSOCK
  67         /* In winsock, accept() returns values higher than dtblsize
  68                 so don't bother with this optimization */
  69         int sd_nfds;
  70 #endif
  71
  72         fd_set sd_actives;
  73         fd_set sd_readers;
  74         fd_set sd_writers;
  75 } slap_daemon;
  76
  77
  78
  79 #ifdef HAVE_SLP
  80 /*
  81  * SLP related functions
  82  */
  83 #include <slp.h>
  84
  85 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
  86 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
  87 static char** slapd_srvurls = NULL;
  88 static SLPHandle slapd_hslp = 0;
  89
  90 void slapd_slp_init( const char* urls ) {
  91         int i;
  92
  93         slapd_srvurls = str2charray( urls, " " );
  94
  95         if( slapd_srvurls == NULL ) return;
  96
  97         /* find and expand INADDR_ANY URLs */
  98         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
  99                 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
 100                         char *host = ldap_pvt_get_fqdn( NULL );
 101                         if ( host != NULL ) {
 102                                 slapd_srvurls[i] = (char *) realloc( slapd_srvurls[i],
 103                                         strlen( host ) +
 104                                         sizeof( LDAP_SRVTYPE_PREFIX ) );
 105                                 strcpy( slap_strcopy(slapd_srvurls[i],
 106                                         LDAP_SRVTYPE_PREFIX ), host );
 107
 108                                 ch_free( host );
 109                         }
 110
 111                 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
 112                         char *host = ldap_pvt_get_fqdn( NULL );
 113                         if ( host != NULL ) {
 114                                 slapd_srvurls[i] = (char *) realloc( slapd_srvurls[i],
 115                                         strlen( host ) +
 116                                         sizeof( LDAPS_SRVTYPE_PREFIX ) );
 117                                 strcpy( slap_strcopy(slapd_srvurls[i],
 118                                         LDAPS_SRVTYPE_PREFIX ), host );
 119
 120                                 ch_free( host );
 121                         }
 122                 }
 123         }
 124
 125         /* open the SLP handle */
 126         SLPOpen( "en", 0, &slapd_hslp );
 127 }
 128
 129 void slapd_slp_deinit() {
 130         if( slapd_srvurls == NULL ) return;
 131
 132         charray_free( slapd_srvurls );
 133         slapd_srvurls = NULL;
 134
 135         /* close the SLP handle */
 136         SLPClose( slapd_hslp );
 137 }
 138
 139 void slapd_slp_regreport(
 140         SLPHandle hslp,
 141         SLPError errcode,
 142         void* cookie )
 143 {
 144         /* empty report */
 145 }
 146
 147 void slapd_slp_reg() {
 148         int i;
 149
 150         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
 151                 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
 152                                 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
 153                     strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
 154                                 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
 155                 {
 156                         SLPReg( slapd_hslp,
 157                                 slapd_srvurls[i],
 158                                 SLP_LIFETIME_MAXIMUM,
 159                                 "ldap",
 160                                 "",
 161                                 1,
 162                                 slapd_slp_regreport,
 163                                 NULL );
 164                 }
 165         }
 166 }
 167
 168 void slapd_slp_dereg() {
 169         int i;
 170
 171         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
 172                 SLPDereg( slapd_hslp,
 173                         slapd_srvurls[i],
 174                         slapd_slp_regreport,
 175                         NULL );
 176         }
 177 }
 178 #endif /* HAVE_SLP */
 179
 180 /*
 181  * Add a descriptor to daemon control
 182  */
 183 static void slapd_add(ber_socket_t s) {
 184         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 185
 186         assert( !FD_ISSET( s, &slap_daemon.sd_actives ));
 187         assert( !FD_ISSET( s, &slap_daemon.sd_readers ));
 188         assert( !FD_ISSET( s, &slap_daemon.sd_writers ));
 189
 190 #ifndef HAVE_WINSOCK
 191         if (s >= slap_daemon.sd_nfds) {
 192                 slap_daemon.sd_nfds = s + 1;
 193         }
 194 #endif
 195
 196         FD_SET( s, &slap_daemon.sd_actives );
 197         FD_SET( s, &slap_daemon.sd_readers );
 198
 199 #ifdef NEW_LOGGING
 200         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
 201                    "slapd_add: added %ld%s%s\n",
 202                    (long)s,
 203                    FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 204                    FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" ));
 205 #else
 206         Debug( LDAP_DEBUG_CONNS, "daemon: added %ld%s%s\n",
 207                 (long) s,
 208             FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 209                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
 210 #endif
 211         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 212 }
 213
 214 /*
 215  * Remove the descriptor from daemon control
 216  */
 217 void slapd_remove(ber_socket_t s, int wake) {
 218         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 219
 220 #ifdef NEW_LOGGING
 221         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
 222                    "slapd_remove: removing %ld%s%s\n",
 223                    (long) s,
 224                    FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 225                    FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : ""  ));
 226 #else
 227         Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
 228                 (long) s,
 229             FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 230                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
 231 #endif
 232         FD_CLR( s, &slap_daemon.sd_actives );
 233         FD_CLR( s, &slap_daemon.sd_readers );
 234         FD_CLR( s, &slap_daemon.sd_writers );
 235
 236         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 237         WAKE_LISTENER(wake);
 238 }
 239
 240 void slapd_clr_write(ber_socket_t s, int wake) {
 241         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 242
 243         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 244         FD_CLR( s, &slap_daemon.sd_writers );
 245
 246         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 247         WAKE_LISTENER(wake);
 248 }
 249
 250 void slapd_set_write(ber_socket_t s, int wake) {
 251         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 252
 253         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 254         if (!FD_ISSET(s, &slap_daemon.sd_writers))
 255             FD_SET( (unsigned) s, &slap_daemon.sd_writers );
 256
 257         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 258         WAKE_LISTENER(wake);
 259 }
 260
 261 void slapd_clr_read(ber_socket_t s, int wake) {
 262         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 263
 264         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 265         FD_CLR( s, &slap_daemon.sd_readers );
 266
 267         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 268         WAKE_LISTENER(wake);
 269 }
 270
 271 void slapd_set_read(ber_socket_t s, int wake) {
 272         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 273
 274         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 275         if (!FD_ISSET(s, &slap_daemon.sd_readers))
 276             FD_SET( s, &slap_daemon.sd_readers );
 277
 278         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 279         WAKE_LISTENER(wake);
 280 }
 281
 282 static void slapd_close(ber_socket_t s) {
 283 #ifdef NEW_LOGGING
 284         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
 285                    "slapd_close: closing %ld\n", (long)s ));
 286 #else
 287         Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
 288                 (long) s, 0, 0 );
 289 #endif
 290         tcp_close(s);
 291 }
 292
 293 static void slap_free_listener_addresses(struct sockaddr **sal)
 294 {
 295         struct sockaddr **sap;
 296
 297         if (sal == NULL) {
 298                 return;
 299         }
 300
 301         for (sap = sal; *sap != NULL; sap++) {
 302                 ch_free(*sap);
 303         }
 304
 305         ch_free(sal);
 306 }
 307
 308 #ifdef LDAP_PF_LOCAL
 309 static int get_url_perms(
 310         char    **exts,
 311         mode_t  *perms,
 312         int     *crit )
 313 {
 314         int     i;
 315
 316         assert( exts );
 317         assert( perms );
 318         assert( crit );
 319
 320         *crit = 0;
 321         for ( i = 0; exts[ i ]; i++ ) {
 322                 char    *type = exts[ i ];
 323                 int     c = 0;
 324
 325                 if ( type[ 0 ] == '!' ) {
 326                         c = 1;
 327                         type++;
 328                 }
 329
 330                 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
 331                         char    *value = type + sizeof(LDAPI_MOD_URLEXT "=") - 1;
 332                         mode_t  p = 0;
 333
 334 #if 0
 335                         if ( strlen( value ) != 9 ) {
 336                                 return LDAP_OTHER;
 337                         }
 338
 339                         switch ( value[ 0 ] ) {
 340                         case 'r':
 341                                 p |= S_IRUSR;
 342                                 break;
 343                         case '-':
 344                                 break;
 345                         default:
 346                                 return LDAP_OTHER;
 347                         }
 348
 349                         switch ( value[ 1 ] ) {
 350                         case 'w':
 351                                 p |= S_IWUSR;
 352                                 break;
 353                         case '-':
 354                                 break;
 355                         default:
 356                                 return LDAP_OTHER;
 357                         }
 358
 359                         switch ( value[ 2 ] ) {
 360                         case 'x':
 361                                 p |= S_IXUSR;
 362                                 break;
 363                         case '-':
 364                                 break;
 365                         default:
 366                                 return LDAP_OTHER;
 367                         }
 368
 369                         switch ( value[ 3 ] ) {
 370                         case 'r':
 371                                 p |= S_IRGRP;
 372                                 break;
 373                         case '-':
 374                                 break;
 375                         default:
 376                                 return LDAP_OTHER;
 377                         }
 378
 379                         switch ( value[ 4 ] ) {
 380                         case 'w':
 381                                 p |= S_IWGRP;
 382                                 break;
 383                         case '-':
 384                                 break;
 385                         default:
 386                                 return LDAP_OTHER;
 387                         }
 388
 389                         switch ( value[ 5 ] ) {
 390                         case 'x':
 391                                 p |= S_IXGRP;
 392                                 break;
 393                         case '-':
 394                                 break;
 395                         default:
 396                                 return LDAP_OTHER;
 397                         }
 398
 399                         switch ( value[ 6 ] ) {
 400                         case 'r':
 401                                 p |= S_IROTH;
 402                                 break;
 403                         case '-':
 404                                 break;
 405                         default:
 406                                 return LDAP_OTHER;
 407                         }
 408
 409                         switch ( value[ 7 ] ) {
 410                         case 'w':
 411                                 p |= S_IWOTH;
 412                                 break;
 413                         case '-':
 414                                 break;
 415                         default:
 416                                 return LDAP_OTHER;
 417                         }
 418
 419                         switch ( value[ 8 ] ) {
 420                         case 'x':
 421                                 p |= S_IXOTH;
 422                                 break;
 423                         case '-':
 424                                 break;
 425                         default:
 426                                 return LDAP_OTHER;
 427                         }
 428 #else
 429                         int     j;
 430
 431                         if ( strlen(value) != 3 ) {
 432                                 return LDAP_OTHER;
 433                         }
 434
 435                         for ( j = 0; j < 3; j++ ) {
 436                                 static mode_t   m[ 3 ]
 437                                         = { S_IRWXU, S_IRWXG, S_IRWXO };
 438
 439                                 switch ( value[ j ] ) {
 440                                 case 'w':
 441                                         p |= m[ j ];
 442                                         break;
 443                                 case '-':
 444                                         break;
 445                                 default:
 446                                         return LDAP_OTHER;
 447                                 }
 448                         }
 449 #endif
 450
 451                         *crit = c;
 452                         *perms = p;
 453
 454                         return LDAP_SUCCESS;
 455                 }
 456         }
 457
 458         return LDAP_OTHER;
 459 }
 460 #endif /* LDAP_PF_LOCAL */
 461
 462 /* port = 0 indicates AF_LOCAL */
 463 static int slap_get_listener_addresses(
 464         const char *host,
 465         unsigned short port,
 466         struct sockaddr ***sal)
 467 {
 468         struct sockaddr **sap;
 469
 470 #ifdef LDAP_PF_LOCAL
 471         if ( port == 0 ) {
 472                 *sal = ch_malloc(2 * sizeof(void *));
 473                 if (*sal == NULL) {
 474                         return -1;
 475                 }
 476
 477                 sap = *sal;
 478                 *sap = ch_malloc(sizeof(struct sockaddr_un));
 479                 if (*sap == NULL)
 480                         goto errexit;
 481                 sap[1] = NULL;
 482
 483                 if ( strlen(host) >
 484                      (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
 485 #ifdef NEW_LOGGING
 486                         LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 487                                    "slap_get_listener_addresses: domain socket path (%s) too long in URL\n",
 488                                    host ));
 489 #else
 490                         Debug( LDAP_DEBUG_ANY,
 491                                "daemon: domain socket path (%s) too long in URL",
 492                                host, 0, 0);
 493 #endif
 494                         goto errexit;
 495                 }
 496
 497                 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
 498                 (*sap)->sa_family = AF_LOCAL;
 499                 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
 500         } else
 501 #endif
 502         {
 503 #ifdef HAVE_GETADDRINFO
 504                 struct addrinfo hints, *res, *sai;
 505                 int n, err;
 506                 char serv[7];
 507
 508                 memset( &hints, '\0', sizeof(hints) );
 509                 hints.ai_flags = AI_PASSIVE;
 510                 hints.ai_socktype = SOCK_STREAM;
 511                 hints.ai_family = AF_UNSPEC;
 512                 snprintf(serv, sizeof serv, "%d", port);
 513
 514                 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
 515 #ifdef NEW_LOGGING
 516                         LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 517                                    "slap_get_listener_addresses: getaddrinfo failed: %s\n",
 518                                    AC_GAI_STRERROR(err) ));
 519 #else
 520                         Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
 521                                 AC_GAI_STRERROR(err), 0, 0);
 522 #endif
 523                         return -1;
 524                 }
 525
 526                 sai = res;
 527                 for (n=2; (sai = sai->ai_next) != NULL; n++) {
 528                         /* EMPTY */ ;
 529                 }
 530                 *sal = ch_calloc(n, sizeof(void *));
 531                 if (*sal == NULL) {
 532                         return -1;
 533                 }
 534
 535                 sap = *sal;
 536                 *sap = NULL;
 537
 538                 for ( sai=res; sai; sai=sai->ai_next ) {
 539                         if( sai->ai_addr == NULL ) {
 540 #ifdef NEW_LOGGING
 541                                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 542                                         "slap_get_listener_addresses: "
 543                                         "getaddrinfo ai_addr is NULL?\n" ));
 544 #else
 545                                 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
 546                                         "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
 547 #endif
 548                                 freeaddrinfo(res);
 549                                 goto errexit;
 550                         }
 551
 552                         switch (sai->ai_family) {
 553 #  ifdef LDAP_PF_INET6
 554                         case AF_INET6:
 555                                 *sap = ch_malloc(sizeof(struct sockaddr_in6));
 556                                 if (*sap == NULL) {
 557                                         freeaddrinfo(res);
 558                                         goto errexit;
 559                                 }
 560                                 *(struct sockaddr_in6 *)*sap =
 561                                         *((struct sockaddr_in6 *)sai->ai_addr);
 562                                 break;
 563 #  endif
 564                         case AF_INET:
 565                                 *sap = ch_malloc(sizeof(struct sockaddr_in));
 566                                 if (*sap == NULL) {
 567                                         freeaddrinfo(res);
 568                                         goto errexit;
 569                                 }
 570                                 *(struct sockaddr_in *)*sap =
 571                                         *((struct sockaddr_in *)sai->ai_addr);
 572                                 break;
 573                         default:
 574                                 *sap = NULL;
 575                                 break;
 576                         }
 577
 578                         if (*sap != NULL) {
 579                                 (*sap)->sa_family = sai->ai_family;
 580                                 sap++;
 581                                 *sap = NULL;
 582                         }
 583                 }
 584
 585                 freeaddrinfo(res);
 586 #else
 587                 struct in_addr in;
 588
 589                 if ( host == NULL ) {
 590                         in.s_addr = htonl(INADDR_ANY);
 591
 592                 } else if ( !inet_aton( host, &in ) ) {
 593                         struct hostent *he = gethostbyname( host );
 594                         if( he == NULL ) {
 595 #ifdef NEW_LOGGING
 596                                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 597                                            "slap_get_listener_addresses: invalid host %s\n",
 598                                            host ));
 599 #else
 600                                 Debug( LDAP_DEBUG_ANY,
 601                                        "daemon: invalid host %s", host, 0, 0);
 602 #endif
 603                                 return -1;
 604                         }
 605                         AC_MEMCPY( &in, he->h_addr, sizeof( in ) );
 606                 }
 607
 608                 *sal = ch_malloc(2 * sizeof(void *));
 609                 if (*sal == NULL) {
 610                         return -1;
 611                 }
 612
 613                 sap = *sal;
 614                 *sap = ch_malloc(sizeof(struct sockaddr_in));
 615                 if (*sap == NULL) {
 616                         goto errexit;
 617                 }
 618                 sap[1] = NULL;
 619
 620                 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_in) );
 621                 (*sap)->sa_family = AF_INET;
 622                 ((struct sockaddr_in *)*sap)->sin_port = htons(port);
 623                 ((struct sockaddr_in *)*sap)->sin_addr = in;
 624 #endif
 625         }
 626
 627         return 0;
 628
 629 errexit:
 630         slap_free_listener_addresses(*sal);
 631         return -1;
 632 }
 633
 634 static Listener * slap_open_listener(
 635         const char* url )
 636 {
 637         int     tmp, rc;
 638         Listener l;
 639         Listener *li;
 640         LDAPURLDesc *lud;
 641         unsigned short port;
 642         int err, addrlen = 0;
 643         struct sockaddr **sal, **psal;
 644         int socktype = SOCK_STREAM;     /* default to COTS */
 645 #ifdef LDAP_PF_LOCAL
 646         mode_t  perms = S_IRWXU;
 647         int     crit = 1;
 648 #endif
 649
 650         rc = ldap_url_parse( url, &lud );
 651
 652         if( rc != LDAP_URL_SUCCESS ) {
 653 #ifdef NEW_LOGGING
 654                 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
 655                            "slap_open_listener: listen URL \"%s\" parse error %d\n",
 656                            url, rc ));
 657 #else
 658                 Debug( LDAP_DEBUG_ANY,
 659                         "daemon: listen URL \"%s\" parse error=%d\n",
 660                         url, rc, 0 );
 661 #endif
 662                 return NULL;
 663         }
 664
 665 #ifndef HAVE_TLS
 666         if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
 667 #ifdef NEW_LOGGING
 668                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 669                            "slap_open_listener: TLS is not supported (%s)\n",
 670                            url ));
 671 #else
 672                 Debug( LDAP_DEBUG_ANY,
 673                         "daemon: TLS not supported (%s)\n",
 674                         url, 0, 0 );
 675 #endif
 676                 ldap_free_urldesc( lud );
 677                 return NULL;
 678         }
 679
 680         if(! lud->lud_port ) {
 681                 lud->lud_port = LDAP_PORT;
 682         }
 683
 684 #else
 685         l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
 686
 687         if(! lud->lud_port ) {
 688                 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
 689         }
 690 #endif
 691
 692         port = (unsigned short) lud->lud_port;
 693
 694         tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
 695         if ( tmp == LDAP_PROTO_IPC ) {
 696 #ifdef LDAP_PF_LOCAL
 697                 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
 698                         err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
 699                 } else {
 700                         err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
 701                 }
 702
 703                 if ( lud->lud_exts ) {
 704                         err = get_url_perms( lud->lud_exts, &perms, &crit );
 705                 }
 706 #else
 707
 708 #ifdef NEW_LOGGING
 709                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 710                            "slap_open_listener: URL scheme is not supported: %s\n",
 711                            url ));
 712 #else
 713                 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
 714                         url, 0, 0);
 715 #endif
 716                 ldap_free_urldesc( lud );
 717                 return NULL;
 718 #endif
 719         } else {
 720 #ifdef LDAP_CONNECTIONLESS
 721                 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
 722 #endif
 723                 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
 724                         || strcmp(lud->lud_host, "*") == 0 )
 725                 {
 726                         err = slap_get_listener_addresses(NULL, port, &sal);
 727                 } else {
 728                         err = slap_get_listener_addresses(lud->lud_host, port, &sal);
 729                 }
 730         }
 731
 732         ldap_free_urldesc( lud );
 733         if ( err ) {
 734                 return NULL;
 735         }
 736
 737         psal = sal;
 738         while ( *sal != NULL ) {
 739                 switch( (*sal)->sa_family ) {
 740                 case AF_INET:
 741 #ifdef LDAP_PF_INET6
 742                 case AF_INET6:
 743 #endif
 744 #ifdef LDAP_PF_LOCAL
 745                 case AF_LOCAL:
 746 #endif
 747                         break;
 748                 default:
 749                         sal++;
 750                         continue;
 751                 }
 752 #ifdef LDAP_CONNECTIONLESS
 753                 if (l.sl_is_udp)
 754                     socktype = SOCK_DGRAM;
 755 #endif
 756                 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
 757                 if ( l.sl_sd == AC_SOCKET_INVALID ) {
 758                         int err = sock_errno();
 759 #ifdef NEW_LOGGING
 760                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
 761                                    "slap_open_listener: socket() failed errno=%d (%s)\n",
 762                                    err, sock_errstr(err) ));
 763 #else
 764                         Debug( LDAP_DEBUG_ANY,
 765                                 "daemon: socket() failed errno=%d (%s)\n", err,
 766                                 sock_errstr(err), 0 );
 767 #endif
 768                         sal++;
 769                         continue;
 770                 }
 771 #ifndef HAVE_WINSOCK
 772                 if ( l.sl_sd >= dtblsize ) {
 773 #ifdef NEW_LOGGING
 774                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
 775                                    "slap_open_listener: listener descriptor %ld is too great %ld\n",
 776                                    (long)l.sl_sd, (long)dtblsize ));
 777 #else
 778                         Debug( LDAP_DEBUG_ANY,
 779                                "daemon: listener descriptor %ld is too great %ld\n",
 780                                (long) l.sl_sd, (long) dtblsize, 0 );
 781 #endif
 782                         tcp_close( l.sl_sd );
 783                         sal++;
 784                         continue;
 785                 }
 786 #endif
 787 #ifdef LDAP_PF_LOCAL
 788                 if ( (*sal)->sa_family == AF_LOCAL ) {
 789                         unlink ( ((struct sockaddr_un *)*sal)->sun_path );
 790                 } else
 791 #endif
 792                 {
 793 #ifdef SO_REUSEADDR
 794                         /* enable address reuse */
 795                         tmp = 1;
 796                         rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
 797                                          (char *) &tmp, sizeof(tmp) );
 798                         if ( rc == AC_SOCKET_ERROR ) {
 799                                 int err = sock_errno();
 800 #ifdef NEW_LOGGING
 801                                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 802                                            "slap_open_listener: setsockopt( %ld, SO_REUSEADDR ) failed errno %d (%s)\n",
 803                                            (long)l.sl_sd, err, sock_errstr(err) ));
 804 #else
 805                                 Debug( LDAP_DEBUG_ANY,
 806                                        "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
 807                                        (long) l.sl_sd, err, sock_errstr(err) );
 808 #endif
 809                         }
 810 #endif
 811                 }
 812
 813                 switch( (*sal)->sa_family ) {
 814                 case AF_INET:
 815                         addrlen = sizeof(struct sockaddr_in);
 816                         break;
 817 #ifdef LDAP_PF_INET6
 818                 case AF_INET6:
 819                         addrlen = sizeof(struct sockaddr_in6);
 820                         break;
 821 #endif
 822 #ifdef LDAP_PF_LOCAL
 823                 case AF_LOCAL:
 824                         addrlen = sizeof(struct sockaddr_un);
 825                         break;
 826 #endif
 827                 }
 828
 829                 if (!bind(l.sl_sd, *sal, addrlen))
 830                         break;
 831                 err = sock_errno();
 832 #ifdef NEW_LOGGING
 833                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 834                            "slap_open_listener: bind(%ld) failed errno=%d (%s)\n",
 835                            (long)l.sl_sd, err, sock_errstr(err) ));
 836 #else
 837                 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
 838                        (long) l.sl_sd, err, sock_errstr(err) );
 839 #endif
 840                 tcp_close( l.sl_sd );
 841                 sal++;
 842         } /* while ( *sal != NULL ) */
 843
 844         if ( *sal == NULL ) {
 845 #ifdef NEW_LOGGING
 846                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 847                            "slap_open_listener: bind(%ld) failed.\n", (long)l.sl_sd ));
 848 #else
 849                 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed\n",
 850                         (long) l.sl_sd, 0, 0 );
 851 #endif
 852                 slap_free_listener_addresses(psal);
 853                 return NULL;
 854         }
 855
 856         switch ( (*sal)->sa_family ) {
 857 #ifdef LDAP_PF_LOCAL
 858         case AF_LOCAL: {
 859                 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
 860                 if ( chmod( addr, perms ) < 0 && crit ) {
 861                         int err = sock_errno();
 862 #ifdef NEW_LOGGING
 863                         LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 864                                    "slap_open_listener: fchmod(%ld) failed errno=%d (%s)\n",
 865                                    (long)l.sl_sd, err, sock_errstr(err) ));
 866 #else
 867                         Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
 868                                (long) l.sl_sd, err, sock_errstr(err) );
 869 #endif
 870                         tcp_close( l.sl_sd );
 871                         slap_free_listener_addresses(psal);
 872                         return NULL;
 873                 }
 874                 l.sl_name = ch_malloc( strlen(addr) + sizeof("PATH=") );
 875                 sprintf( l.sl_name, "PATH=%s", addr );
 876         } break;
 877 #endif /* LDAP_PF_LOCAL */
 878
 879         case AF_INET: {
 880                 char *s;
 881 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
 882                 char addr[INET_ADDRSTRLEN];
 883                 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
 884                            addr, sizeof(addr) );
 885                 s = addr;
 886 #else
 887                 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
 888 #endif
 889                 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
 890                 l.sl_name = ch_malloc( sizeof("IP=255.255.255.255:65535") );
 891                 sprintf( l.sl_name, "IP=%s:%d",
 892                          s != NULL ? s : "unknown" , port );
 893         } break;
 894
 895 #ifdef LDAP_PF_INET6
 896         case AF_INET6: {
 897                 char addr[INET6_ADDRSTRLEN];
 898                 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
 899                            addr, sizeof addr);
 900                 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
 901                 l.sl_name = ch_malloc( strlen(addr) + sizeof("IP= 65535") );
 902                 sprintf( l.sl_name, "IP=%s %d", addr, port );
 903         } break;
 904 #endif /* LDAP_PF_INET6 */
 905
 906         default:
 907 #ifdef NEW_LOGGING
 908                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
 909                            "slap_open_listener: unsupported address family (%d)\n",
 910                            (int)(*sal)->sa_family ));
 911 #else
 912                 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
 913                         (int) (*sal)->sa_family, 0, 0 );
 914 #endif
 915                 break;
 916         }
 917
 918         slap_free_listener_addresses(psal);
 919
 920         l.sl_url = ch_strdup( url );
 921         li = ch_malloc( sizeof( Listener ) );
 922         *li = l;
 923
 924 #ifdef NEW_LOGGING
 925         LDAP_LOG(( "connection", LDAP_LEVEL_RESULTS,
 926                    "slap_open_listener: daemon initialzed %s\n", l.sl_url ));
 927 #else
 928         Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
 929                 l.sl_url, 0, 0 );
 930 #endif
 931         return li;
 932 }
 933
 934 static int sockinit(void);
 935 static int sockdestroy(void);
 936
 937 int slapd_daemon_init( const char *urls )
 938 {
 939         int i, rc;
 940         char **u;
 941
 942 #ifdef NEW_LOGGING
 943         LDAP_LOG(( "connection", LDAP_LEVEL_ARGS,
 944                    "slapd_daemon_init: %s\n",
 945                    urls ? urls : "<null>" ));
 946 #else
 947         Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
 948                 urls ? urls : "<null>", 0, 0 );
 949 #endif
 950         if( (rc = sockinit()) != 0 ) {
 951                 return rc;
 952         }
 953
 954 #ifdef HAVE_SYSCONF
 955         dtblsize = sysconf( _SC_OPEN_MAX );
 956 #elif HAVE_GETDTABLESIZE
 957         dtblsize = getdtablesize();
 958 #else
 959         dtblsize = FD_SETSIZE;
 960 #endif
 961
 962 #ifdef FD_SETSIZE
 963         if(dtblsize > FD_SETSIZE) {
 964                 dtblsize = FD_SETSIZE;
 965         }
 966 #endif  /* !FD_SETSIZE */
 967
 968         /* open a pipe (or something equivalent connected to itself).
 969          * we write a byte on this fd whenever we catch a signal. The main
 970          * loop will be select'ing on this socket, and will wake up when
 971          * this byte arrives.
 972          */
 973         if( (rc = lutil_pair( wake_sds )) < 0 ) {
 974 #ifdef NEW_LOGGING
 975                 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
 976                            "slap_daemon_init: lutil_pair() failed rc=%d\n", rc ));
 977 #else
 978                 Debug( LDAP_DEBUG_ANY,
 979                         "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
 980 #endif
 981                 return rc;
 982         }
 983
 984         FD_ZERO( &slap_daemon.sd_readers );
 985         FD_ZERO( &slap_daemon.sd_writers );
 986
 987         if( urls == NULL ) {
 988                 urls = "ldap:///";
 989         }
 990
 991         u = str2charray( urls, " " );
 992
 993         if( u == NULL || u[0] == NULL ) {
 994 #ifdef NEW_LOGGING
 995                 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
 996                            "slap_daemon_init: no urls (%s) provided.\n", urls ));
 997 #else
 998                 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
 999                         urls, 0, 0 );
1000 #endif
1001                 return -1;
1002         }
1003
1004         for( i=0; u[i] != NULL; i++ ) {
1005 #ifdef NEW_LOGGING
1006                 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
1007                            "slap_daemon_init: listen on %s\n.", u[i] ));
1008 #else
1009                 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1010                         u[i], 0, 0 );
1011 #endif
1012         }
1013
1014         if( i == 0 ) {
1015 #ifdef NEW_LOGGING
1016                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
1017                            "slap_daemon_init: no listeners to open (%s)\n", urls ));
1018 #else
1019                 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1020                         urls, 0, 0 );
1021 #endif
1022                 charray_free( u );
1023                 return -1;
1024         }
1025
1026 #ifdef NEW_LOGGING
1027         LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
1028                    "slap_daemon_init: %d listeners to open...\n", i ));
1029 #else
1030         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1031                 i, 0, 0 );
1032 #endif
1033         slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1034
1035         for(i = 0; u[i] != NULL; i++ ) {
1036                 slap_listeners[i] = slap_open_listener( u[i] );
1037
1038                 if( slap_listeners[i] == NULL ) {
1039                         charray_free( u );
1040                         return -1;
1041                 }
1042         }
1043         slap_listeners[i] = NULL;
1044
1045 #ifdef NEW_LOGGING
1046         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
1047                    "slap_daemon_init: %d listeners opened\n", i ));
1048 #else
1049         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1050                 i, 0, 0 );
1051 #endif
1052
1053 #ifdef HAVE_SLP
1054         slapd_slp_init( urls );
1055         slapd_slp_reg();
1056 #endif
1057
1058         charray_free( u );
1059         ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1060         return !i;
1061 }
1062
1063
1064 int
1065 slapd_daemon_destroy(void)
1066 {
1067         connections_destroy();
1068         tcp_close( wake_sds[1] );
1069         tcp_close( wake_sds[0] );
1070         sockdestroy();
1071
1072 #ifdef HAVE_SLP
1073         slapd_slp_dereg();
1074         slapd_slp_deinit();
1075 #endif
1076
1077         return 0;
1078 }
1079
1080
1081 static void *
1082 slapd_daemon_task(
1083         void *ptr
1084 )
1085 {
1086         int l;
1087         time_t  last_idle_check = 0;
1088         time( &starttime );
1089
1090         if ( global_idletimeout > 0 ) {
1091                 last_idle_check = slap_get_time();
1092         }
1093         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1094                 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1095                         continue;
1096 #ifdef LDAP_CONNECTIONLESS
1097                 /* Since this is connectionless, the data port is the
1098                  * listening port. The listen() and accept() calls
1099                  * are unnecessary.
1100                  */
1101                 if ( slap_listeners[l]->sl_is_udp )
1102                 {
1103                         slapd_add( slap_listeners[l]->sl_sd );
1104                         continue;
1105                 }
1106 #endif
1107
1108                 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1109                         int err = sock_errno();
1110 #ifdef NEW_LOGGING
1111                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1112                                    "slapd_daemon_task: listen( %s, 5 ) failed errno=%d (%s)\n",
1113                                    slap_listeners[l]->sl_url, err, sock_errstr(err) ));
1114 #else
1115                         Debug( LDAP_DEBUG_ANY,
1116                                 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1117                                         slap_listeners[l]->sl_url, err,
1118                                         sock_errstr(err) );
1119 #endif
1120                         return( (void*)-1 );
1121                 }
1122
1123                 slapd_add( slap_listeners[l]->sl_sd );
1124         }
1125
1126 #ifdef HAVE_NT_SERVICE_MANAGER
1127         if ( started_event != NULL ) {
1128                 ldap_pvt_thread_cond_signal( &started_event );
1129         }
1130 #endif
1131         /* initialization complete. Here comes the loop. */
1132
1133         while ( !slapd_shutdown ) {
1134                 ber_socket_t i;
1135                 int ns;
1136                 int at;
1137                 ber_socket_t nfds;
1138 #define SLAPD_EBADF_LIMIT 16
1139                 int ebadf = 0;
1140                 int emfile = 0;
1141
1142 #define SLAPD_IDLE_CHECK_LIMIT 4
1143                 time_t  now;
1144
1145
1146                 fd_set                  readfds;
1147                 fd_set                  writefds;
1148                 Sockaddr                from;
1149
1150 #if defined(SLAPD_RLOOKUPS)
1151                 struct hostent          *hp;
1152 #endif
1153                 struct timeval          zero;
1154                 struct timeval          *tvp;
1155
1156                 if( emfile ) {
1157                         now = slap_get_time();
1158                         connections_timeout_idle( now );
1159                 }
1160                 else if ( global_idletimeout > 0 ) {
1161                         now = slap_get_time();
1162                         if ( difftime( last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1163                                 connections_timeout_idle( now );
1164                         }
1165                 }
1166
1167                 FD_ZERO( &writefds );
1168                 FD_ZERO( &readfds );
1169
1170                 zero.tv_sec = 0;
1171                 zero.tv_usec = 0;
1172
1173                 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1174
1175 #ifdef FD_SET_MANUAL_COPY
1176                 for( s = 0; s < nfds; s++ ) {
1177                         if(FD_ISSET( &slap_sd_readers, s )) {
1178                                 FD_SET( s, &readfds );
1179                         }
1180                         if(FD_ISSET( &slap_sd_writers, s )) {
1181                                 FD_SET( s, &writefds );
1182                         }
1183                 }
1184 #else
1185                 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
1186                 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
1187 #endif
1188                 assert(!FD_ISSET(wake_sds[0], &readfds));
1189                 FD_SET( wake_sds[0], &readfds );
1190
1191                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1192                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1193                                 continue;
1194                         if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds))
1195                             FD_SET( slap_listeners[l]->sl_sd, &readfds );
1196                 }
1197
1198 #ifndef HAVE_WINSOCK
1199                 nfds = slap_daemon.sd_nfds;
1200 #else
1201                 nfds = dtblsize;
1202 #endif
1203
1204                 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1205
1206                 at = ldap_pvt_thread_pool_backload(&connection_pool);
1207
1208 #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
1209                 tvp = NULL;
1210 #else
1211                 tvp = at ? &zero : NULL;
1212 #endif
1213
1214                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1215                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1216                                 continue;
1217
1218 #ifdef NEW_LOGGING
1219                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
1220                                    "slapd_daemon_task: select: listen=%d active_threads=%d tvp=%s\n",
1221                                    slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" ));
1222 #else
1223                         Debug( LDAP_DEBUG_CONNS,
1224                                 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1225                                         slap_listeners[l]->sl_sd, at,
1226                                         tvp == NULL ? "NULL" : "zero" );
1227 #endif
1228                 }
1229
1230                 switch(ns = select( nfds, &readfds,
1231 #ifdef HAVE_WINSOCK
1232                         /* don't pass empty fd_set */
1233                         ( writefds.fd_count > 0 ? &writefds : NULL ),
1234 #else
1235                         &writefds,
1236 #endif
1237                         NULL, tvp ))
1238                 {
1239                 case -1: {      /* failure - try again */
1240                                 int err = sock_errno();
1241
1242                                 if( err == EBADF
1243 #ifdef WSAENOTSOCK
1244                                         /* you'd think this would be EBADF */
1245                                         || err == WSAENOTSOCK
1246 #endif
1247                                 ) {
1248                                         if (++ebadf < SLAPD_EBADF_LIMIT)
1249                                                 continue;
1250                                 }
1251
1252                                 if( err != EINTR ) {
1253 #ifdef NEW_LOGGING
1254                                         LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
1255                                                    "slapd_daemon_task: select failed (%d): %s\n",
1256                                                    err, sock_errstr(err) ));
1257 #else
1258                                         Debug( LDAP_DEBUG_CONNS,
1259                                                 "daemon: select failed (%d): %s\n",
1260                                                 err, sock_errstr(err), 0 );
1261 #endif
1262                                         slapd_shutdown = -1;
1263                                 }
1264                         }
1265                         continue;
1266
1267                 case 0:         /* timeout - let threads run */
1268                         ebadf = 0;
1269 #ifdef NEW_LOGGING
1270                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1271                                    "slapd_daemon_task: select timeout - yielding\n" ));
1272 #else
1273                         Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1274                             0, 0, 0 );
1275 #endif
1276                         ldap_pvt_thread_yield();
1277                         continue;
1278
1279                 default:        /* something happened - deal with it */
1280                         if( slapd_shutdown ) continue;
1281
1282                         ebadf = 0;
1283 #ifdef NEW_LOGGING
1284                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1285                                    "slapd_daemon_task: activity on %d descriptors\n", ns ));
1286 #else
1287                         Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1288                                 ns, 0, 0 );
1289 #endif
1290                         /* FALL THRU */
1291                 }
1292
1293                 if( FD_ISSET( wake_sds[0], &readfds ) ) {
1294                         char c[BUFSIZ];
1295                         tcp_read( wake_sds[0], c, sizeof(c) );
1296 #ifdef NO_THREADS
1297                         waking = 0;
1298 #endif
1299                         continue;
1300                 }
1301
1302                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1303                         ber_socket_t s;
1304                         socklen_t len = sizeof(from);
1305                         long id;
1306                         slap_ssf_t ssf = 0;
1307                         char *authid = NULL;
1308
1309                         char    *dnsname = NULL;
1310                         char    *peeraddr;
1311 #ifdef LDAP_PF_LOCAL
1312                         char    peername[MAXPATHLEN + sizeof("PATH=")];
1313 #elif defined(LDAP_PF_INET6)
1314                         char    peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1315 #else
1316                         char    peername[sizeof("IP=255.255.255.255:65336")];
1317 #endif /* LDAP_PF_LOCAL */
1318
1319                         peername[0] = '\0';
1320
1321                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1322                                 continue;
1323
1324                         if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
1325                                 continue;
1326
1327 #ifdef LDAP_CONNECTIONLESS
1328                         if ( slap_listeners[l]->sl_is_udp )
1329                         {
1330                         /* The first time we receive a query, we set this
1331                          * up as a "connection". It remains open for the life
1332                          * of the slapd.
1333                          */
1334                                 if ( slap_listeners[l]->sl_is_udp < 2 )
1335                                 {
1336                                     id = connection_init(
1337                                         slap_listeners[l]->sl_sd,
1338                                         slap_listeners[l]->sl_url, "", "",
1339                                         slap_listeners[l]->sl_name,
1340                                         2, ssf, authid );
1341                                     slap_listeners[l]->sl_is_udp++;
1342                                 }
1343                                 continue;
1344                         }
1345 #endif
1346
1347                         s = accept( slap_listeners[l]->sl_sd,
1348                                 (struct sockaddr *) &from, &len );
1349                         if ( s == AC_SOCKET_INVALID ) {
1350                                 int err = sock_errno();
1351
1352 #ifdef EMFILE
1353                                 if( err == EMFILE ) {
1354                                         emfile++;
1355                                 } else
1356 #endif
1357 #ifdef ENFILE
1358                                 if( err == ENFILE ) {
1359                                         emfile++;
1360                                 } else
1361 #endif
1362                                 {
1363                                         emfile=0;
1364                                 }
1365
1366                                 if( emfile < 3 ) {
1367 #ifdef NEW_LOGGING
1368                                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1369                                                 "slapd_daemon_task: accept(%ld) failed errno=%d (%s)\n",
1370                                                 (long)slap_listeners[l]->sl_sd, err, sock_errstr(err) ));
1371 #else
1372                                         Debug( LDAP_DEBUG_ANY,
1373                                             "daemon: accept(%ld) failed errno=%d (%s)\n",
1374                                             (long) slap_listeners[l]->sl_sd, err,
1375                                             sock_errstr(err) );
1376 #endif
1377                                 } else {
1378                                         /* prevent busy loop */
1379 #  ifdef HAVE_USLEEP
1380                                         if( emfile % 4 == 3 ) usleep( 250 );
1381 #  else
1382                                         if( emfile % 8 == 7 ) sleep( 1 );
1383 #  endif
1384                                 }
1385
1386                                 ldap_pvt_thread_yield();
1387                                 continue;
1388                         }
1389                         emfile = 0;
1390
1391 #ifndef HAVE_WINSOCK
1392                         /* make sure descriptor number isn't too great */
1393                         if ( s >= dtblsize ) {
1394 #ifdef NEW_LOGGING
1395                                 LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1396                                    "slapd_daemon_task: %ld beyond descriptor table size %ld\n",
1397                                    (long)s, (long)dtblsize ));
1398 #else
1399                                 Debug( LDAP_DEBUG_ANY,
1400                                         "daemon: %ld beyond descriptor table size %ld\n",
1401                                         (long) s, (long) dtblsize, 0 );
1402 #endif
1403
1404                                 slapd_close(s);
1405                                 ldap_pvt_thread_yield();
1406                                 continue;
1407                         }
1408 #endif
1409
1410 #ifdef LDAP_DEBUG
1411                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1412
1413                         /* newly accepted stream should not be in any of the FD SETS */
1414                         assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
1415                         assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
1416                         assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
1417
1418                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1419 #endif
1420
1421 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1422 #ifdef LDAP_PF_LOCAL
1423                         /* for IPv4 and IPv6 sockets only */
1424                         if ( from.sa_addr.sa_family != AF_LOCAL )
1425 #endif /* LDAP_PF_LOCAL */
1426                         {
1427                                 int rc;
1428                                 int tmp;
1429 #ifdef SO_KEEPALIVE
1430                                 /* enable keep alives */
1431                                 tmp = 1;
1432                                 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1433                                         (char *) &tmp, sizeof(tmp) );
1434                                 if ( rc == AC_SOCKET_ERROR ) {
1435                                         int err = sock_errno();
1436 #ifdef NEW_LOGGING
1437                                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1438                                                    "slapd_daemon_task: setsockopt( %ld, SO_KEEPALIVE) failed errno=%d (%s)\n",
1439                                                    (long)s, err, sock_errstr(err) ));
1440 #else
1441                                         Debug( LDAP_DEBUG_ANY,
1442                                                 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1443                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1444 #endif
1445                                 }
1446 #endif
1447 #ifdef TCP_NODELAY
1448                                 /* enable no delay */
1449                                 tmp = 1;
1450                                 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1451                                         (char *)&tmp, sizeof(tmp) );
1452                                 if ( rc == AC_SOCKET_ERROR ) {
1453                                         int err = sock_errno();
1454 #ifdef NEW_LOGGING
1455                                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1456                                                    "slapd_daemon_task: setsockopt( %ld, TCP_NODELAY) failed errno=%d (%s)\n",
1457                                                    (long)s, err, sock_errstr(err) ));
1458 #else
1459                                         Debug( LDAP_DEBUG_ANY,
1460                                                 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1461                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1462 #endif
1463                                 }
1464 #endif
1465                         }
1466 #endif
1467
1468 #ifdef NEW_LOGGING
1469                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL1,
1470                                    "slapd_daemon_task: new connection on %ld\n", (long)s ));
1471 #else
1472                         Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1473                                 (long) s, 0, 0 );
1474 #endif
1475                         switch ( from.sa_addr.sa_family ) {
1476 #  ifdef LDAP_PF_LOCAL
1477                         case AF_LOCAL:
1478                                 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1479                                 ssf = LDAP_PVT_SASL_LOCAL_SSF;
1480                                 dnsname = "local";
1481                                 break;
1482 #endif /* LDAP_PF_LOCAL */
1483
1484 #  ifdef LDAP_PF_INET6
1485                         case AF_INET6:
1486                         if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1487                                 peeraddr = inet_ntoa( *((struct in_addr *)
1488                                                         &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1489                                 sprintf( peername, "IP=%s:%d",
1490                                          peeraddr != NULL ? peeraddr : "unknown",
1491                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1492                         } else {
1493                                 char addr[INET6_ADDRSTRLEN];
1494                                 sprintf( peername, "IP=%s %d",
1495                                          inet_ntop( AF_INET6,
1496                                                     &from.sa_in6_addr.sin6_addr,
1497                                                     addr, sizeof addr) ? addr : "unknown",
1498                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1499                         }
1500                         break;
1501 #  endif /* LDAP_PF_INET6 */
1502
1503                         case AF_INET:
1504                         peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1505                         sprintf( peername, "IP=%s:%d",
1506                                 peeraddr != NULL ? peeraddr : "unknown",
1507                                 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1508                                 break;
1509
1510                         default:
1511                                 slapd_close(s);
1512                                 continue;
1513                         }
1514
1515                         if ( ( from.sa_addr.sa_family == AF_INET )
1516 #ifdef LDAP_PF_INET6
1517                                 || ( from.sa_addr.sa_family == AF_INET6 )
1518 #endif
1519                         ) {
1520 #ifdef SLAPD_RLOOKUPS
1521 #  ifdef LDAP_PF_INET6
1522                                 if ( from.sa_addr.sa_family == AF_INET6 )
1523                                         hp = gethostbyaddr(
1524                                                 (char *)&(from.sa_in6_addr.sin6_addr),
1525                                                 sizeof(from.sa_in6_addr.sin6_addr),
1526                                                 AF_INET6 );
1527                                 else
1528 #  endif /* LDAP_PF_INET6 */
1529                                 hp = gethostbyaddr(
1530                                         (char *) &(from.sa_in_addr.sin_addr),
1531                                         sizeof(from.sa_in_addr.sin_addr),
1532                                         AF_INET );
1533                                 dnsname = hp ? ldap_pvt_str2lower( hp->h_name ) : NULL;
1534 #else
1535                                 dnsname = NULL;
1536 #endif /* SLAPD_RLOOKUPS */
1537
1538 #ifdef HAVE_TCPD
1539                                 if ( !hosts_ctl("slapd",
1540                                                 dnsname != NULL ? dnsname : STRING_UNKNOWN,
1541                                                 peeraddr != NULL ? peeraddr : STRING_UNKNOWN,
1542                                                 STRING_UNKNOWN ))
1543                                 {
1544                                         /* DENY ACCESS */
1545                                         Statslog( LDAP_DEBUG_ANY,
1546                                                 "fd=%ld host access from %s (%s) denied.\n",
1547                                                 (long) s,
1548                                                 dnsname != NULL ? dnsname : "unknown",
1549                                                 peeraddr != NULL ? peeraddr : "unknown",
1550                                                 0, 0 );
1551                                         slapd_close(s);
1552                                         continue;
1553                                 }
1554 #endif /* HAVE_TCPD */
1555                         }
1556
1557                         id = connection_init(s,
1558                                 slap_listeners[l]->sl_url,
1559                                 dnsname != NULL ? dnsname : "unknown",
1560                                 peername,
1561                                 slap_listeners[l]->sl_name,
1562 #ifdef HAVE_TLS
1563                                 slap_listeners[l]->sl_is_tls,
1564 #else
1565                                 0,
1566 #endif
1567                                 ssf,
1568                                 authid );
1569
1570                         if( authid ) ch_free(authid);
1571
1572                         if( id < 0 ) {
1573 #ifdef NEW_LOGGING
1574                                 LDAP_LOG(( "connection", LDAP_LEVEL_INFO,
1575                                            "slapd_daemon_task: connection_init(%ld, %s, %s) failed.\n",
1576                                            (long)s, peername, slap_listeners[l]->sl_name ));
1577 #else
1578                                 Debug( LDAP_DEBUG_ANY,
1579                                         "daemon: connection_init(%ld, %s, %s) failed.\n",
1580                                         (long) s,
1581                                         peername,
1582                                         slap_listeners[l]->sl_name );
1583 #endif
1584                                 slapd_close(s);
1585                                 continue;
1586                         }
1587
1588                         Statslog( LDAP_DEBUG_STATS,
1589                                 "daemon: conn=%ld fd=%ld connection from %s (%s) accepted.\n",
1590                                 id, (long) s,
1591                                 peername,
1592                                 slap_listeners[l]->sl_name,
1593                                 0 );
1594
1595                         slapd_add( s );
1596                         continue;
1597                 }
1598
1599 #ifdef LDAP_DEBUG
1600 #ifdef NEW_LOGGING
1601                 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1602                            "slapd_daemon_task: activity on " ));
1603 #else
1604                 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1605 #endif
1606 #ifdef HAVE_WINSOCK
1607                 for ( i = 0; i < readfds.fd_count; i++ ) {
1608 #ifdef NEW_LOGGING
1609                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1610                                    " %d%s", readfds.fd_array[i], "r", 0 ));
1611 #else
1612                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1613                                 readfds.fd_array[i], "r", 0 );
1614 #endif
1615                 }
1616                 for ( i = 0; i < writefds.fd_count; i++ ) {
1617 #ifdef NEW_LOGGING
1618                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1619                                    " %d%s", writefds.fd_array[i], "w" ));
1620 #else
1621                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1622                                 writefds.fd_array[i], "w", 0 );
1623 #endif
1624                 }
1625
1626 #else
1627                 for ( i = 0; i < nfds; i++ ) {
1628                         int     r, w;
1629                         int     is_listener = 0;
1630
1631                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1632                                 if ( i == slap_listeners[l]->sl_sd ) {
1633 #ifdef LDAP_CONNECTIONLESS
1634                                 /* The listener is the data port. Don't
1635                                  * skip it.
1636                                  */
1637                                         if (slap_listeners[l]->sl_is_udp)
1638                                                 continue;
1639 #endif
1640                                         is_listener = 1;
1641                                         break;
1642                                 }
1643                         }
1644                         if ( is_listener ) {
1645                                 continue;
1646                         }
1647                         r = FD_ISSET( i, &readfds );
1648                         w = FD_ISSET( i, &writefds );
1649                         if ( r || w ) {
1650 #ifdef NEW_LOGGING
1651                                 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1652                                            " %d%s%s", i,
1653                                            r ? "r" : "", w ? "w" : "" ));
1654 #else
1655                                 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1656                                     r ? "r" : "", w ? "w" : "" );
1657 #endif
1658                         }
1659                 }
1660 #endif
1661 #ifdef NEW_LOGGING
1662                 LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2, "\n" ));
1663 #else
1664                 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1665 #endif
1666
1667 #endif
1668
1669                 /* loop through the writers */
1670 #ifdef HAVE_WINSOCK
1671                 for ( i = 0; i < writefds.fd_count; i++ )
1672 #else
1673                 for ( i = 0; i < nfds; i++ )
1674 #endif
1675                 {
1676                         ber_socket_t wd;
1677                         int is_listener = 0;
1678 #ifdef HAVE_WINSOCK
1679                         wd = writefds.fd_array[i];
1680 #else
1681                         if( ! FD_ISSET( i, &writefds ) ) {
1682                                 continue;
1683                         }
1684                         wd = i;
1685 #endif
1686
1687                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1688                                 if ( i == slap_listeners[l]->sl_sd ) {
1689 #ifdef LDAP_CONNECTIONLESS
1690                                         if (slap_listeners[l]->sl_is_udp)
1691                                                 continue;
1692 #endif
1693                                         is_listener = 1;
1694                                         break;
1695                                 }
1696                         }
1697                         if ( is_listener ) {
1698                                 continue;
1699                         }
1700 #ifdef NEW_LOGGING
1701                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1702                                    "slapd_daemon_task: write active on %d\n", wd ));
1703 #else
1704                         Debug( LDAP_DEBUG_CONNS,
1705                                 "daemon: write active on %d\n",
1706                                 wd, 0, 0 );
1707 #endif
1708                         /*
1709                          * NOTE: it is possible that the connection was closed
1710                          * and that the stream is now inactive.
1711                          * connection_write() must valid the stream is still
1712                          * active.
1713                          */
1714
1715                         if ( connection_write( wd ) < 0 ) {
1716                                 FD_CLR( (unsigned) wd, &readfds );
1717                                 slapd_close( wd );
1718                         }
1719                 }
1720
1721 #ifdef HAVE_WINSOCK
1722                 for ( i = 0; i < readfds.fd_count; i++ )
1723 #else
1724                 for ( i = 0; i < nfds; i++ )
1725 #endif
1726                 {
1727                         ber_socket_t rd;
1728                         int is_listener = 0;
1729
1730 #ifdef HAVE_WINSOCK
1731                         rd = readfds.fd_array[i];
1732 #else
1733                         if( ! FD_ISSET( i, &readfds ) ) {
1734                                 continue;
1735                         }
1736                         rd = i;
1737 #endif
1738
1739                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1740                                 if ( rd == slap_listeners[l]->sl_sd ) {
1741 #ifdef LDAP_CONNECTIONLESS
1742                                         if (slap_listeners[l]->sl_is_udp)
1743                                                 continue;
1744 #endif
1745                                         is_listener = 1;
1746                                         break;
1747                                 }
1748                         }
1749                         if ( is_listener ) {
1750                                 continue;
1751                         }
1752
1753 #ifdef NEW_LOGGING
1754                         LDAP_LOG(( "connection", LDAP_LEVEL_DETAIL2,
1755                                    "slapd_daemon_task: read activity on %d\n", rd ));
1756 #else
1757                         Debug ( LDAP_DEBUG_CONNS,
1758                                 "daemon: read activity on %d\n", rd, 0, 0 );
1759 #endif
1760                         /*
1761                          * NOTE: it is possible that the connection was closed
1762                          * and that the stream is now inactive.
1763                          * connection_read() must valid the stream is still
1764                          * active.
1765                          */
1766
1767                         if ( connection_read( rd ) < 0 ) {
1768                                 slapd_close( rd );
1769                         }
1770                 }
1771                 ldap_pvt_thread_yield();
1772         }
1773
1774         if( slapd_shutdown > 0 ) {
1775 #ifdef NEW_LOGGING
1776                 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1777                            "slapd_daemon_task: shutdown requested and initiated.\n"));
1778 #else
1779                 Debug( LDAP_DEBUG_TRACE,
1780                         "daemon: shutdown requested and initiated.\n",
1781                         0, 0, 0 );
1782 #endif
1783
1784         } else if ( slapd_shutdown < 0 ) {
1785 #ifdef HAVE_NT_SERVICE_MANAGER
1786                 if (slapd_shutdown == -1)
1787                 {
1788 #ifdef NEW_LOGGING
1789                         LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1790                                    "slapd_daemon_task: shutdown initiated by Service Manager.\n"));
1791 #else
1792                         Debug( LDAP_DEBUG_TRACE,
1793                                "daemon: shutdown initiated by Service Manager.\n",
1794                                0, 0, 0);
1795 #endif
1796                 }
1797                 else
1798 #endif
1799                 {
1800 #ifdef NEW_LOGGING
1801                         LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1802                                    "slapd_daemon_task: abnormal condition, shutdown initiated.\n" ));
1803 #else
1804                         Debug( LDAP_DEBUG_TRACE,
1805                                "daemon: abnormal condition, shutdown initiated.\n",
1806                                0, 0, 0 );
1807 #endif
1808                 }
1809         } else {
1810 #ifdef NEW_LOGGING
1811                 LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1812                            "slapd_daemon_task: no active streams, shutdown initiated.\n" ));
1813 #else
1814                 Debug( LDAP_DEBUG_TRACE,
1815                        "daemon: no active streams, shutdown initiated.\n",
1816                        0, 0, 0 );
1817 #endif
1818         }
1819
1820         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1821                 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1822 #ifdef LDAP_PF_LOCAL
1823                         if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1824                                 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1825                         }
1826 #endif /* LDAP_PF_LOCAL */
1827                         slapd_close( slap_listeners[l]->sl_sd );
1828                 }
1829                 if ( slap_listeners[l]->sl_url )
1830                         free ( slap_listeners[l]->sl_url );
1831                 if ( slap_listeners[l]->sl_name )
1832                         free ( slap_listeners[l]->sl_name );
1833                 free ( slap_listeners[l] );
1834         }
1835         free ( slap_listeners );
1836         slap_listeners = NULL;
1837
1838 #ifdef NEW_LOGGING
1839         LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1840                    "slapd_daemon_task: shutdown waiting for %d threads to terminate.\n",
1841                    ldap_pvt_thread_pool_backload(&connection_pool) ));
1842 #else
1843         Debug( LDAP_DEBUG_ANY,
1844             "slapd shutdown: waiting for %d threads to terminate\n",
1845             ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1846 #endif
1847         ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1848
1849         return NULL;
1850 }
1851
1852
1853 int slapd_daemon( void )
1854 {
1855         int rc;
1856
1857         connections_init();
1858
1859 #define SLAPD_LISTENER_THREAD 1
1860 #if defined( SLAPD_LISTENER_THREAD )
1861         {
1862                 ldap_pvt_thread_t       listener_tid;
1863
1864                 /* listener as a separate THREAD */
1865                 rc = ldap_pvt_thread_create( &listener_tid,
1866                         0, slapd_daemon_task, NULL );
1867
1868                 if ( rc != 0 ) {
1869 #ifdef NEW_LOGGING
1870                         LDAP_LOG(( "connection", LDAP_LEVEL_ERR,
1871                                    "slapd_daemon: listener ldap_pvt_thread_create failed (%d).\n", rc ));
1872 #else
1873                         Debug( LDAP_DEBUG_ANY,
1874                         "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
1875 #endif
1876                         return rc;
1877                 }
1878
1879                 /* wait for the listener thread to complete */
1880                 ldap_pvt_thread_join( listener_tid, (void *) NULL );
1881         }
1882 #else
1883         /* experimental code */
1884         slapd_daemon_task( NULL );
1885 #endif
1886
1887         return 0;
1888
1889 }
1890
1891 int sockinit(void)
1892 {
1893 #if defined( HAVE_WINSOCK2 )
1894     WORD wVersionRequested;
1895         WSADATA wsaData;
1896         int err;
1897
1898         wVersionRequested = MAKEWORD( 2, 0 );
1899
1900         err = WSAStartup( wVersionRequested, &wsaData );
1901         if ( err != 0 ) {
1902                 /* Tell the user that we couldn't find a usable */
1903                 /* WinSock DLL.                                  */
1904                 return -1;
1905         }
1906
1907         /* Confirm that the WinSock DLL supports 2.0.*/
1908         /* Note that if the DLL supports versions greater    */
1909         /* than 2.0 in addition to 2.0, it will still return */
1910         /* 2.0 in wVersion since that is the version we      */
1911         /* requested.                                        */
1912
1913         if ( LOBYTE( wsaData.wVersion ) != 2 ||
1914                 HIBYTE( wsaData.wVersion ) != 0 )
1915         {
1916             /* Tell the user that we couldn't find a usable */
1917             /* WinSock DLL.                                  */
1918             WSACleanup();
1919             return -1;
1920         }
1921
1922         /* The WinSock DLL is acceptable. Proceed. */
1923 #elif defined( HAVE_WINSOCK )
1924         WSADATA wsaData;
1925         if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
1926             return -1;
1927         }
1928 #endif
1929         return 0;
1930 }
1931
1932 int sockdestroy(void)
1933 {
1934 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
1935         WSACleanup();
1936 #endif
1937         return 0;
1938 }
1939
1940 RETSIGTYPE
1941 slap_sig_shutdown( int sig )
1942 {
1943 #ifdef NEW_LOGGING
1944         LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1945                    "slap_sig_shutdown: signal %d\n", sig ));
1946 #else
1947         Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
1948 #endif
1949
1950         /*
1951          * If the NT Service Manager is controlling the server, we don't
1952          * want SIGBREAK to kill the server. For some strange reason,
1953          * SIGBREAK is generated when a user logs out.
1954          */
1955
1956 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
1957         if (is_NT_Service && sig == SIGBREAK)
1958 #ifdef NEW_LOGGING
1959             LDAP_LOG(( "connection", LDAP_LEVEL_CRIT,
1960                        "slap_sig_shutdown: SIGBREAK ignored.\n" ));
1961 #else
1962             Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n",
1963                   0, 0, 0);
1964 #endif
1965         else
1966 #endif
1967         slapd_shutdown = sig;
1968
1969         WAKE_LISTENER(1);
1970
1971         /* reinstall self */
1972         (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
1973 }
1974
1975 RETSIGTYPE
1976 slap_sig_wake( int sig )
1977 {
1978         WAKE_LISTENER(1);
1979
1980         /* reinstall self */
1981         (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
1982 }
1983
1984
1985 void slapd_add_internal(ber_socket_t s) {
1986         slapd_add(s);
1987 }
1988
1989 Listener ** slapd_get_listeners(void) {
1990         return slap_listeners;
1991 }