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/socket.h>
  14 #include <ac/string.h>
  15 #include <ac/time.h>
  16 #include <ac/unistd.h>
  17
  18 #include "ldap_pvt.h"
  19 #include "ldap_pvt_thread.h"
  20 #include "lutil.h"
  21 #include "slap.h"
  22
  23 #ifdef HAVE_TCPD
  24 #include <tcpd.h>
  25
  26 int allow_severity = LOG_INFO;
  27 int deny_severity = LOG_NOTICE;
  28 #endif /* TCP Wrappers */
  29
  30 #ifdef LDAP_PF_LOCAL
  31 #include <sys/stat.h>
  32 /* this should go in <ldap.h> as soon as it is accepted */
  33 #define LDAPI_MOD_URLEXT                "x-mod"
  34 #endif /* LDAP_PF_LOCAL */
  35
  36 #ifdef LDAP_PF_INET6
  37 int slap_inet4or6 = AF_UNSPEC;
  38 #else
  39 int slap_inet4or6 = AF_INET;
  40 #endif
  41
  42 /* globals */
  43 time_t starttime;
  44 ber_socket_t dtblsize;
  45
  46 Listener **slap_listeners = NULL;
  47
  48 #define SLAPD_LISTEN 10
  49
  50 static ber_socket_t wake_sds[2];
  51
  52 #ifdef NO_THREADS
  53 static int waking;
  54 #define WAKE_LISTENER(w) \
  55 ((w && !waking) ? tcp_write( wake_sds[1], "0", 1 ), waking=1 : 0)
  56 #else
  57 #define WAKE_LISTENER(w) \
  58 do { if (w) tcp_write( wake_sds[1], "0", 1 ); } while(0)
  59 #endif
  60
  61 #ifndef HAVE_WINSOCK
  62 static
  63 #endif
  64 volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_shutdown = 0;
  65
  66 static struct slap_daemon {
  67         ldap_pvt_thread_mutex_t sd_mutex;
  68
  69         ber_socket_t sd_nactives;
  70
  71 #ifndef HAVE_WINSOCK
  72         /* In winsock, accept() returns values higher than dtblsize
  73                 so don't bother with this optimization */
  74         int sd_nfds;
  75 #endif
  76
  77         fd_set sd_actives;
  78         fd_set sd_readers;
  79         fd_set sd_writers;
  80 } slap_daemon;
  81
  82
  83
  84 #ifdef HAVE_SLP
  85 /*
  86  * SLP related functions
  87  */
  88 #include <slp.h>
  89
  90 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
  91 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
  92 static char** slapd_srvurls = NULL;
  93 static SLPHandle slapd_hslp = 0;
  94
  95 void slapd_slp_init( const char* urls ) {
  96         int i;
  97
  98         slapd_srvurls = str2charray( urls, " " );
  99
 100         if( slapd_srvurls == NULL ) return;
 101
 102         /* find and expand INADDR_ANY URLs */
 103         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
 104                 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
 105                         char *host = ldap_pvt_get_fqdn( NULL );
 106                         if ( host != NULL ) {
 107                                 slapd_srvurls[i] = (char *) realloc( slapd_srvurls[i],
 108                                         strlen( host ) +
 109                                         sizeof( LDAP_SRVTYPE_PREFIX ) );
 110                                 strcpy( slap_strcopy(slapd_srvurls[i],
 111                                         LDAP_SRVTYPE_PREFIX ), host );
 112
 113                                 ch_free( host );
 114                         }
 115
 116                 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
 117                         char *host = ldap_pvt_get_fqdn( NULL );
 118                         if ( host != NULL ) {
 119                                 slapd_srvurls[i] = (char *) realloc( slapd_srvurls[i],
 120                                         strlen( host ) +
 121                                         sizeof( LDAPS_SRVTYPE_PREFIX ) );
 122                                 strcpy( slap_strcopy(slapd_srvurls[i],
 123                                         LDAPS_SRVTYPE_PREFIX ), host );
 124
 125                                 ch_free( host );
 126                         }
 127                 }
 128         }
 129
 130         /* open the SLP handle */
 131         SLPOpen( "en", 0, &slapd_hslp );
 132 }
 133
 134 void slapd_slp_deinit() {
 135         if( slapd_srvurls == NULL ) return;
 136
 137         charray_free( slapd_srvurls );
 138         slapd_srvurls = NULL;
 139
 140         /* close the SLP handle */
 141         SLPClose( slapd_hslp );
 142 }
 143
 144 void slapd_slp_regreport(
 145         SLPHandle hslp,
 146         SLPError errcode,
 147         void* cookie )
 148 {
 149         /* empty report */
 150 }
 151
 152 void slapd_slp_reg() {
 153         int i;
 154
 155         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
 156                 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
 157                                 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
 158                     strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
 159                                 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
 160                 {
 161                         SLPReg( slapd_hslp,
 162                                 slapd_srvurls[i],
 163                                 SLP_LIFETIME_MAXIMUM,
 164                                 "ldap",
 165                                 "",
 166                                 1,
 167                                 slapd_slp_regreport,
 168                                 NULL );
 169                 }
 170         }
 171 }
 172
 173 void slapd_slp_dereg() {
 174         int i;
 175
 176         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
 177                 SLPDereg( slapd_hslp,
 178                         slapd_srvurls[i],
 179                         slapd_slp_regreport,
 180                         NULL );
 181         }
 182 }
 183 #endif /* HAVE_SLP */
 184
 185 /*
 186  * Add a descriptor to daemon control
 187  */
 188 static void slapd_add(ber_socket_t s) {
 189         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 190
 191         assert( !FD_ISSET( s, &slap_daemon.sd_actives ));
 192         assert( !FD_ISSET( s, &slap_daemon.sd_readers ));
 193         assert( !FD_ISSET( s, &slap_daemon.sd_writers ));
 194
 195 #ifndef HAVE_WINSOCK
 196         if (s >= slap_daemon.sd_nfds) {
 197                 slap_daemon.sd_nfds = s + 1;
 198         }
 199 #endif
 200
 201         slap_daemon.sd_nactives++;
 202
 203         FD_SET( s, &slap_daemon.sd_actives );
 204         FD_SET( s, &slap_daemon.sd_readers );
 205
 206 #ifdef NEW_LOGGING
 207         LDAP_LOG( CONNECTION, DETAIL1,
 208                 "slapd_add: added %ld%s%s\n", (long)s,
 209                 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 210                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
 211 #else
 212         Debug( LDAP_DEBUG_CONNS, "daemon: added %ld%s%s\n",
 213                 (long) s,
 214             FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 215                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
 216 #endif
 217         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 218 }
 219
 220 /*
 221  * Remove the descriptor from daemon control
 222  */
 223 void slapd_remove(ber_socket_t s, int wake) {
 224         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 225
 226         slap_daemon.sd_nactives--;
 227
 228 #ifdef NEW_LOGGING
 229         LDAP_LOG( CONNECTION, DETAIL1,
 230                 "slapd_remove: removing %ld%s%s\n", (long) s,
 231                 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 232                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : ""  );
 233 #else
 234         Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
 235                 (long) s,
 236             FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 237                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
 238 #endif
 239         FD_CLR( s, &slap_daemon.sd_actives );
 240         FD_CLR( s, &slap_daemon.sd_readers );
 241         FD_CLR( s, &slap_daemon.sd_writers );
 242
 243         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 244         WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
 245 }
 246
 247 void slapd_clr_write(ber_socket_t s, int wake) {
 248         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 249
 250         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 251         FD_CLR( s, &slap_daemon.sd_writers );
 252
 253         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 254         WAKE_LISTENER(wake);
 255 }
 256
 257 void slapd_set_write(ber_socket_t s, int wake) {
 258         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 259
 260         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 261         if (!FD_ISSET(s, &slap_daemon.sd_writers))
 262             FD_SET( (unsigned) s, &slap_daemon.sd_writers );
 263
 264         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 265         WAKE_LISTENER(wake);
 266 }
 267
 268 void slapd_clr_read(ber_socket_t s, int wake) {
 269         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 270
 271         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 272         FD_CLR( s, &slap_daemon.sd_readers );
 273
 274         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 275         WAKE_LISTENER(wake);
 276 }
 277
 278 void slapd_set_read(ber_socket_t s, int wake) {
 279         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 280
 281         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 282         if (!FD_ISSET(s, &slap_daemon.sd_readers))
 283             FD_SET( s, &slap_daemon.sd_readers );
 284
 285         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 286         WAKE_LISTENER(wake);
 287 }
 288
 289 static void slapd_close(ber_socket_t s) {
 290 #ifdef NEW_LOGGING
 291         LDAP_LOG( CONNECTION, DETAIL1, "slapd_close: closing %ld\n", (long)s, 0, 0);
 292 #else
 293         Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
 294                 (long) s, 0, 0 );
 295 #endif
 296         tcp_close(s);
 297 }
 298
 299 static void slap_free_listener_addresses(struct sockaddr **sal)
 300 {
 301         struct sockaddr **sap;
 302
 303         if (sal == NULL) {
 304                 return;
 305         }
 306
 307         for (sap = sal; *sap != NULL; sap++) {
 308                 ch_free(*sap);
 309         }
 310
 311         ch_free(sal);
 312 }
 313
 314 #ifdef LDAP_PF_LOCAL
 315 static int get_url_perms(
 316         char    **exts,
 317         mode_t  *perms,
 318         int     *crit )
 319 {
 320         int     i;
 321
 322         assert( exts );
 323         assert( perms );
 324         assert( crit );
 325
 326         *crit = 0;
 327         for ( i = 0; exts[ i ]; i++ ) {
 328                 char    *type = exts[ i ];
 329                 int     c = 0;
 330
 331                 if ( type[ 0 ] == '!' ) {
 332                         c = 1;
 333                         type++;
 334                 }
 335
 336                 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
 337                         char    *value = type + sizeof(LDAPI_MOD_URLEXT "=") - 1;
 338                         mode_t  p = 0;
 339                         int     j;
 340
 341                         if ( strlen(value) != 3 ) {
 342                                 return LDAP_OTHER;
 343                         }
 344
 345                         for ( j = 0; j < 3; j++ ) {
 346                                 static mode_t   m[ 3 ]
 347                                         = { S_IRWXU, S_IRWXG, S_IRWXO };
 348
 349                                 switch ( value[ j ] ) {
 350                                 case 'w':
 351                                         p |= m[ j ];
 352                                         break;
 353                                 case '-':
 354                                         break;
 355                                 default:
 356                                         return LDAP_OTHER;
 357                                 }
 358                         }
 359
 360                         *crit = c;
 361                         *perms = p;
 362
 363                         return LDAP_SUCCESS;
 364                 }
 365         }
 366
 367         return LDAP_OTHER;
 368 }
 369 #endif /* LDAP_PF_LOCAL */
 370
 371 /* port = 0 indicates AF_LOCAL */
 372 static int slap_get_listener_addresses(
 373         const char *host,
 374         unsigned short port,
 375         struct sockaddr ***sal)
 376 {
 377         struct sockaddr **sap;
 378
 379 #ifdef LDAP_PF_LOCAL
 380         if ( port == 0 ) {
 381                 *sal = ch_malloc(2 * sizeof(void *));
 382                 if (*sal == NULL) {
 383                         return -1;
 384                 }
 385
 386                 sap = *sal;
 387                 *sap = ch_malloc(sizeof(struct sockaddr_un));
 388                 if (*sap == NULL)
 389                         goto errexit;
 390                 sap[1] = NULL;
 391
 392                 if ( strlen(host) >
 393                      (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
 394 #ifdef NEW_LOGGING
 395                         LDAP_LOG( CONNECTION, INFO,
 396                                 "slap_get_listener_addresses: domain socket path (%s) "
 397                                 "too long in URL\n", host, 0, 0 );
 398 #else
 399                         Debug( LDAP_DEBUG_ANY,
 400                                "daemon: domain socket path (%s) too long in URL",
 401                                host, 0, 0);
 402 #endif
 403                         goto errexit;
 404                 }
 405
 406                 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
 407                 (*sap)->sa_family = AF_LOCAL;
 408                 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
 409         } else
 410 #endif
 411         {
 412 #ifdef HAVE_GETADDRINFO
 413                 struct addrinfo hints, *res, *sai;
 414                 int n, err;
 415                 char serv[7];
 416
 417                 memset( &hints, '\0', sizeof(hints) );
 418                 hints.ai_flags = AI_PASSIVE;
 419                 hints.ai_socktype = SOCK_STREAM;
 420                 hints.ai_family = slap_inet4or6;
 421                 snprintf(serv, sizeof serv, "%d", port);
 422
 423                 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
 424 #ifdef NEW_LOGGING
 425                         LDAP_LOG( CONNECTION, INFO,
 426                                    "slap_get_listener_addresses: getaddrinfo failed: %s\n",
 427                                    AC_GAI_STRERROR(err), 0, 0 );
 428 #else
 429                         Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
 430                                 AC_GAI_STRERROR(err), 0, 0);
 431 #endif
 432                         return -1;
 433                 }
 434
 435                 sai = res;
 436                 for (n=2; (sai = sai->ai_next) != NULL; n++) {
 437                         /* EMPTY */ ;
 438                 }
 439                 *sal = ch_calloc(n, sizeof(void *));
 440                 if (*sal == NULL) {
 441                         return -1;
 442                 }
 443
 444                 sap = *sal;
 445                 *sap = NULL;
 446
 447                 for ( sai=res; sai; sai=sai->ai_next ) {
 448                         if( sai->ai_addr == NULL ) {
 449 #ifdef NEW_LOGGING
 450                                 LDAP_LOG( CONNECTION, INFO,
 451                                         "slap_get_listener_addresses: "
 452                                         "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
 453 #else
 454                                 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
 455                                         "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
 456 #endif
 457                                 freeaddrinfo(res);
 458                                 goto errexit;
 459                         }
 460
 461                         switch (sai->ai_family) {
 462 #  ifdef LDAP_PF_INET6
 463                         case AF_INET6:
 464                                 *sap = ch_malloc(sizeof(struct sockaddr_in6));
 465                                 if (*sap == NULL) {
 466                                         freeaddrinfo(res);
 467                                         goto errexit;
 468                                 }
 469                                 *(struct sockaddr_in6 *)*sap =
 470                                         *((struct sockaddr_in6 *)sai->ai_addr);
 471                                 break;
 472 #  endif
 473                         case AF_INET:
 474                                 *sap = ch_malloc(sizeof(struct sockaddr_in));
 475                                 if (*sap == NULL) {
 476                                         freeaddrinfo(res);
 477                                         goto errexit;
 478                                 }
 479                                 *(struct sockaddr_in *)*sap =
 480                                         *((struct sockaddr_in *)sai->ai_addr);
 481                                 break;
 482                         default:
 483                                 *sap = NULL;
 484                                 break;
 485                         }
 486
 487                         if (*sap != NULL) {
 488                                 (*sap)->sa_family = sai->ai_family;
 489                                 sap++;
 490                                 *sap = NULL;
 491                         }
 492                 }
 493
 494                 freeaddrinfo(res);
 495 #else
 496                 int i, n = 1;
 497                 struct in_addr in;
 498                 struct hostent *he = NULL;
 499
 500                 if ( host == NULL ) {
 501                         in.s_addr = htonl(INADDR_ANY);
 502
 503                 } else if ( !inet_aton( host, &in ) ) {
 504                         he = gethostbyname( host );
 505                         if( he == NULL ) {
 506 #ifdef NEW_LOGGING
 507                                 LDAP_LOG( CONNECTION, INFO,
 508                                         "slap_get_listener_addresses: invalid host %s\n", host, 0, 0 );
 509 #else
 510                                 Debug( LDAP_DEBUG_ANY,
 511                                        "daemon: invalid host %s", host, 0, 0);
 512 #endif
 513                                 return -1;
 514                         }
 515                         for (n = 0; he->h_addr_list[n]; n++) ;
 516                 }
 517
 518                 *sal = ch_malloc((n+1) * sizeof(void *));
 519                 if (*sal == NULL) {
 520                         return -1;
 521                 }
 522
 523                 sap = *sal;
 524                 for ( i = 0; i<n; i++ ) {
 525                         sap[i] = ch_malloc(sizeof(struct sockaddr_in));
 526                         if (*sap == NULL) {
 527                                 goto errexit;
 528                         }
 529                         (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
 530                         sap[i]->sa_family = AF_INET;
 531                         ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
 532                         if (he) {
 533                                 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
 534                         } else {
 535                                 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
 536                         }
 537                 }
 538                 sap[i] = NULL;
 539 #endif
 540         }
 541
 542         return 0;
 543
 544 errexit:
 545         slap_free_listener_addresses(*sal);
 546         return -1;
 547 }
 548
 549 static int slap_open_listener(
 550         const char* url,
 551         int *listeners,
 552         int *cur
 553         )
 554 {
 555         int     num, tmp, rc;
 556         Listener l;
 557         Listener *li;
 558         LDAPURLDesc *lud;
 559         unsigned short port;
 560         int err, addrlen = 0;
 561         struct sockaddr **sal, **psal;
 562         int socktype = SOCK_STREAM;     /* default to COTS */
 563
 564 #ifdef LDAP_PF_LOCAL
 565         mode_t  perms = S_IRWXU;
 566         int     crit = 1;
 567 #endif
 568
 569         rc = ldap_url_parse( url, &lud );
 570
 571         if( rc != LDAP_URL_SUCCESS ) {
 572 #ifdef NEW_LOGGING
 573                 LDAP_LOG( CONNECTION, ERR,
 574                         "slap_open_listener: listen URL \"%s\" parse error %d\n",
 575                         url, rc , 0 );
 576 #else
 577                 Debug( LDAP_DEBUG_ANY,
 578                         "daemon: listen URL \"%s\" parse error=%d\n",
 579                         url, rc, 0 );
 580 #endif
 581                 return rc;
 582         }
 583
 584 #ifndef HAVE_TLS
 585         if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
 586 #ifdef NEW_LOGGING
 587                 LDAP_LOG( CONNECTION, INFO,
 588                            "slap_open_listener: TLS is not supported (%s)\n", url, 0, 0 );
 589 #else
 590                 Debug( LDAP_DEBUG_ANY,
 591                         "daemon: TLS not supported (%s)\n",
 592                         url, 0, 0 );
 593 #endif
 594                 ldap_free_urldesc( lud );
 595                 return -1;
 596         }
 597
 598         if(! lud->lud_port ) {
 599                 lud->lud_port = LDAP_PORT;
 600         }
 601
 602 #else
 603         l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
 604
 605         if(! lud->lud_port ) {
 606                 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
 607         }
 608 #endif
 609
 610         port = (unsigned short) lud->lud_port;
 611
 612         tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
 613         if ( tmp == LDAP_PROTO_IPC ) {
 614 #ifdef LDAP_PF_LOCAL
 615                 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
 616                         err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
 617                 } else {
 618                         err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
 619                 }
 620
 621                 if ( lud->lud_exts ) {
 622                         err = get_url_perms( lud->lud_exts, &perms, &crit );
 623                 }
 624 #else
 625
 626 #ifdef NEW_LOGGING
 627                 LDAP_LOG( CONNECTION, INFO,
 628                         "slap_open_listener: URL scheme is not supported: %s\n", url, 0, 0 );
 629 #else
 630                 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
 631                         url, 0, 0);
 632 #endif
 633                 ldap_free_urldesc( lud );
 634                 return -1;
 635 #endif
 636         } else {
 637 #ifdef LDAP_CONNECTIONLESS
 638                 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
 639 #endif
 640                 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
 641                         || strcmp(lud->lud_host, "*") == 0 )
 642                 {
 643                         err = slap_get_listener_addresses(NULL, port, &sal);
 644                 } else {
 645                         err = slap_get_listener_addresses(lud->lud_host, port, &sal);
 646                 }
 647         }
 648
 649         ldap_free_urldesc( lud );
 650         if ( err ) {
 651                 return -1;
 652         }
 653
 654         /* If we got more than one address returned, we need to make space
 655          * for it in the slap_listeners array.
 656          */
 657         for ( num=0; sal[num]; num++ );
 658         if ( num > 1 ) {
 659                 *listeners += num-1;
 660                 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
 661         }
 662
 663         psal = sal;
 664         while ( *sal != NULL ) {
 665                 switch( (*sal)->sa_family ) {
 666                 case AF_INET:
 667 #ifdef LDAP_PF_INET6
 668                 case AF_INET6:
 669 #endif
 670 #ifdef LDAP_PF_LOCAL
 671                 case AF_LOCAL:
 672 #endif
 673                         break;
 674                 default:
 675                         sal++;
 676                         continue;
 677                 }
 678 #ifdef LDAP_CONNECTIONLESS
 679                 if (l.sl_is_udp)
 680                     socktype = SOCK_DGRAM;
 681 #endif
 682                 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
 683                 if ( l.sl_sd == AC_SOCKET_INVALID ) {
 684                         int err = sock_errno();
 685 #ifdef NEW_LOGGING
 686                         LDAP_LOG( CONNECTION, ERR,
 687                                 "slap_open_listener: socket() failed errno=%d (%s)\n",
 688                                 err, sock_errstr(err), 0 );
 689 #else
 690                         Debug( LDAP_DEBUG_ANY,
 691                                 "daemon: socket() failed errno=%d (%s)\n", err,
 692                                 sock_errstr(err), 0 );
 693 #endif
 694                         sal++;
 695                         continue;
 696                 }
 697 #ifndef HAVE_WINSOCK
 698                 if ( l.sl_sd >= dtblsize ) {
 699 #ifdef NEW_LOGGING
 700                         LDAP_LOG( CONNECTION, ERR,
 701                                 "slap_open_listener: listener descriptor %ld is too "
 702                                 "great %ld\n", (long)l.sl_sd, (long)dtblsize, 0 );
 703 #else
 704                         Debug( LDAP_DEBUG_ANY,
 705                                "daemon: listener descriptor %ld is too great %ld\n",
 706                                (long) l.sl_sd, (long) dtblsize, 0 );
 707 #endif
 708                         tcp_close( l.sl_sd );
 709                         sal++;
 710                         continue;
 711                 }
 712 #endif
 713 #ifdef LDAP_PF_LOCAL
 714                 if ( (*sal)->sa_family == AF_LOCAL ) {
 715                         unlink ( ((struct sockaddr_un *)*sal)->sun_path );
 716                 } else
 717 #endif
 718                 {
 719 #ifdef SO_REUSEADDR
 720                         /* enable address reuse */
 721                         tmp = 1;
 722                         rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
 723                                          (char *) &tmp, sizeof(tmp) );
 724                         if ( rc == AC_SOCKET_ERROR ) {
 725                                 int err = sock_errno();
 726 #ifdef NEW_LOGGING
 727                                 LDAP_LOG( CONNECTION, INFO,
 728                                         "slap_open_listener: setsockopt( %ld, SO_REUSEADDR ) "
 729                                         "failed errno %d (%s)\n", (long)l.sl_sd, err,
 730                                         sock_errstr(err) );
 731 #else
 732                                 Debug( LDAP_DEBUG_ANY,
 733                                        "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
 734                                        (long) l.sl_sd, err, sock_errstr(err) );
 735 #endif
 736                         }
 737 #endif
 738                 }
 739
 740                 switch( (*sal)->sa_family ) {
 741                 case AF_INET:
 742                         addrlen = sizeof(struct sockaddr_in);
 743                         break;
 744 #ifdef LDAP_PF_INET6
 745                 case AF_INET6:
 746 #ifdef IPV6_V6ONLY
 747                         /* Try to use IPv6 sockets for IPv6 only */
 748                         tmp = 1;
 749                         rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
 750                                          (char *) &tmp, sizeof(tmp) );
 751                         if ( rc == AC_SOCKET_ERROR ) {
 752                                 int err = sock_errno();
 753 #ifdef NEW_LOGGING
 754                                 LDAP_LOG( CONNECTION, INFO,
 755                                            "slap_open_listener: setsockopt( %ld, IPV6_V6ONLY ) failed errno %d (%s)\n",
 756                                            (long)l.sl_sd, err, sock_errstr(err) );
 757 #else
 758                                 Debug( LDAP_DEBUG_ANY,
 759                                        "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
 760                                        (long) l.sl_sd, err, sock_errstr(err) );
 761 #endif
 762                         }
 763 #endif
 764                         addrlen = sizeof(struct sockaddr_in6);
 765                         break;
 766 #endif
 767 #ifdef LDAP_PF_LOCAL
 768                 case AF_LOCAL:
 769                         addrlen = sizeof(struct sockaddr_un);
 770                         break;
 771 #endif
 772                 }
 773
 774                 if (bind(l.sl_sd, *sal, addrlen)) {
 775                         err = sock_errno();
 776 #ifdef NEW_LOGGING
 777                 LDAP_LOG( CONNECTION, INFO,
 778                         "slap_open_listener: bind(%ld) failed errno=%d (%s)\n",
 779                         (long)l.sl_sd, err, sock_errstr(err) );
 780 #else
 781                 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
 782                        (long) l.sl_sd, err, sock_errstr(err) );
 783 #endif
 784                         tcp_close( l.sl_sd );
 785                         sal++;
 786                         continue;
 787                 }
 788
 789         switch ( (*sal)->sa_family ) {
 790 #ifdef LDAP_PF_LOCAL
 791         case AF_LOCAL: {
 792                 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
 793                 if ( chmod( addr, perms ) < 0 && crit ) {
 794                         int err = sock_errno();
 795 #ifdef NEW_LOGGING
 796                         LDAP_LOG( CONNECTION, INFO,
 797                                 "slap_open_listener: fchmod(%ld) failed errno=%d (%s)\n",
 798                                 (long)l.sl_sd, err, sock_errstr(err) );
 799 #else
 800                         Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
 801                                (long) l.sl_sd, err, sock_errstr(err) );
 802 #endif
 803                         tcp_close( l.sl_sd );
 804                         slap_free_listener_addresses(psal);
 805                         return -1;
 806                 }
 807                 l.sl_name = ch_malloc( strlen(addr) + sizeof("PATH=") );
 808                 sprintf( l.sl_name, "PATH=%s", addr );
 809         } break;
 810 #endif /* LDAP_PF_LOCAL */
 811
 812         case AF_INET: {
 813                 char *s;
 814 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
 815                 char addr[INET_ADDRSTRLEN];
 816                 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
 817                            addr, sizeof(addr) );
 818                 s = addr;
 819 #else
 820                 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
 821 #endif
 822                 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
 823                 l.sl_name = ch_malloc( sizeof("IP=255.255.255.255:65535") );
 824                 sprintf( l.sl_name, "IP=%s:%d",
 825                          s != NULL ? s : "unknown" , port );
 826         } break;
 827
 828 #ifdef LDAP_PF_INET6
 829         case AF_INET6: {
 830                 char addr[INET6_ADDRSTRLEN];
 831                 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
 832                            addr, sizeof addr);
 833                 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
 834                 l.sl_name = ch_malloc( strlen(addr) + sizeof("IP= 65535") );
 835                 sprintf( l.sl_name, "IP=%s %d", addr, port );
 836         } break;
 837 #endif /* LDAP_PF_INET6 */
 838
 839         default:
 840 #ifdef NEW_LOGGING
 841                 LDAP_LOG( CONNECTION, INFO,
 842                         "slap_open_listener: unsupported address family (%d)\n",
 843                         (int)(*sal)->sa_family, 0, 0 );
 844 #else
 845                 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
 846                         (int) (*sal)->sa_family, 0, 0 );
 847 #endif
 848                 break;
 849         }
 850
 851         AC_MEMCPY(&l.sl_sa, *sal, addrlen);
 852         l.sl_url = ch_strdup( url );
 853         li = ch_malloc( sizeof( Listener ) );
 854         *li = l;
 855         slap_listeners[*cur] = li;
 856         (*cur)++;
 857         sal++;
 858
 859         } /* while ( *sal != NULL ) */
 860
 861         slap_free_listener_addresses(psal);
 862
 863
 864 #ifdef NEW_LOGGING
 865         LDAP_LOG( CONNECTION, RESULTS,
 866                         "slap_open_listener: daemon initialzed %s\n", l.sl_url, 0, 0 );
 867 #else
 868         Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
 869                 l.sl_url, 0, 0 );
 870 #endif
 871         return 0;
 872 }
 873
 874 static int sockinit(void);
 875 static int sockdestroy(void);
 876
 877 int slapd_daemon_init( const char *urls )
 878 {
 879         int i, j, n, rc;
 880         char **u;
 881
 882 #ifdef NEW_LOGGING
 883         LDAP_LOG( CONNECTION, ARGS,
 884                 "slapd_daemon_init: %s\n", urls ? urls : "<null>", 0, 0 );
 885 #else
 886         Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
 887                 urls ? urls : "<null>", 0, 0 );
 888 #endif
 889         if( (rc = sockinit()) != 0 ) {
 890                 return rc;
 891         }
 892
 893 #ifdef HAVE_SYSCONF
 894         dtblsize = sysconf( _SC_OPEN_MAX );
 895 #elif HAVE_GETDTABLESIZE
 896         dtblsize = getdtablesize();
 897 #else
 898         dtblsize = FD_SETSIZE;
 899 #endif
 900
 901 #ifdef FD_SETSIZE
 902         if(dtblsize > FD_SETSIZE) {
 903                 dtblsize = FD_SETSIZE;
 904         }
 905 #endif  /* !FD_SETSIZE */
 906
 907         /* open a pipe (or something equivalent connected to itself).
 908          * we write a byte on this fd whenever we catch a signal. The main
 909          * loop will be select'ing on this socket, and will wake up when
 910          * this byte arrives.
 911          */
 912         if( (rc = lutil_pair( wake_sds )) < 0 ) {
 913 #ifdef NEW_LOGGING
 914                 LDAP_LOG( CONNECTION, ERR,
 915                         "slap_daemon_init: lutil_pair() failed rc=%d\n", rc, 0, 0);
 916 #else
 917                 Debug( LDAP_DEBUG_ANY,
 918                         "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
 919 #endif
 920                 return rc;
 921         }
 922
 923         FD_ZERO( &slap_daemon.sd_readers );
 924         FD_ZERO( &slap_daemon.sd_writers );
 925
 926         if( urls == NULL ) {
 927                 urls = "ldap:///";
 928         }
 929
 930         u = str2charray( urls, " " );
 931
 932         if( u == NULL || u[0] == NULL ) {
 933 #ifdef NEW_LOGGING
 934                 LDAP_LOG( CONNECTION, ERR,
 935                         "slap_daemon_init: no urls (%s) provided.\n", urls, 0, 0 );
 936 #else
 937                 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
 938                         urls, 0, 0 );
 939 #endif
 940                 return -1;
 941         }
 942
 943         for( i=0; u[i] != NULL; i++ ) {
 944 #ifdef NEW_LOGGING
 945                 LDAP_LOG( CONNECTION, DETAIL1,
 946                         "slap_daemon_init: listen on %s\n.", u[i], 0, 0 );
 947 #else
 948                 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
 949                         u[i], 0, 0 );
 950 #endif
 951         }
 952
 953         if( i == 0 ) {
 954 #ifdef NEW_LOGGING
 955                 LDAP_LOG( CONNECTION, INFO,
 956                          "slap_daemon_init: no listeners to open (%s)\n", urls, 0, 0 );
 957 #else
 958                 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
 959                         urls, 0, 0 );
 960 #endif
 961                 charray_free( u );
 962                 return -1;
 963         }
 964
 965 #ifdef NEW_LOGGING
 966         LDAP_LOG( CONNECTION, INFO,
 967                 "slap_daemon_init: %d listeners to open...\n", i, 0, 0 );
 968 #else
 969         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
 970                 i, 0, 0 );
 971 #endif
 972         slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
 973
 974         for(n = 0, j = 0; u[n]; n++ ) {
 975                 if ( slap_open_listener( u[n], &i, &j ) ) {
 976                         charray_free( u );
 977                         return -1;
 978                 }
 979         }
 980         slap_listeners[j] = NULL;
 981
 982 #ifdef NEW_LOGGING
 983         LDAP_LOG( CONNECTION, DETAIL1,
 984                 "slap_daemon_init: %d listeners opened\n", i, 0, 0 );
 985 #else
 986         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
 987                 i, 0, 0 );
 988 #endif
 989
 990 #ifdef HAVE_SLP
 991         slapd_slp_init( urls );
 992         slapd_slp_reg();
 993 #endif
 994
 995         charray_free( u );
 996         ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
 997         return !i;
 998 }
 999
1000
1001 int
1002 slapd_daemon_destroy(void)
1003 {
1004         connections_destroy();
1005         tcp_close( wake_sds[1] );
1006         tcp_close( wake_sds[0] );
1007         sockdestroy();
1008
1009 #ifdef HAVE_SLP
1010         slapd_slp_dereg();
1011         slapd_slp_deinit();
1012 #endif
1013
1014         return 0;
1015 }
1016
1017
1018 static void
1019 close_listeners(
1020         int remove
1021 )
1022 {
1023         int l;
1024
1025         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1026                 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1027                         if ( remove )
1028                                 slapd_remove( slap_listeners[l]->sl_sd, 0 );
1029 #ifdef LDAP_PF_LOCAL
1030                         if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1031                                 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1032                         }
1033 #endif /* LDAP_PF_LOCAL */
1034                         slapd_close( slap_listeners[l]->sl_sd );
1035                 }
1036                 if ( slap_listeners[l]->sl_url )
1037                         free ( slap_listeners[l]->sl_url );
1038                 if ( slap_listeners[l]->sl_name )
1039                         free ( slap_listeners[l]->sl_name );
1040                 free ( slap_listeners[l] );
1041                 slap_listeners[l] = NULL;
1042         }
1043 }
1044
1045
1046 static void *
1047 slapd_daemon_task(
1048         void *ptr
1049 )
1050 {
1051         int l;
1052         time_t  last_idle_check = 0;
1053         time( &starttime );
1054
1055         if ( global_idletimeout > 0 ) {
1056                 last_idle_check = slap_get_time();
1057         }
1058         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1059                 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1060                         continue;
1061 #ifdef LDAP_CONNECTIONLESS
1062                 /* Since this is connectionless, the data port is the
1063                  * listening port. The listen() and accept() calls
1064                  * are unnecessary.
1065                  */
1066                 if ( slap_listeners[l]->sl_is_udp )
1067                 {
1068                         slapd_add( slap_listeners[l]->sl_sd );
1069                         continue;
1070                 }
1071 #endif
1072
1073                 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1074                         int err = sock_errno();
1075
1076 #ifdef LDAP_PF_INET6
1077                         /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1078                          * we are already listening to in6addr_any, then we want to ignore
1079                          * this and continue.
1080                          */
1081                         if ( err == EADDRINUSE ) {
1082                                 int i;
1083                                 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1084                                 struct sockaddr_in6 sa6;
1085
1086                                 if ( sa.sin_family == AF_INET &&
1087                                      sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1088                                         for ( i = 0 ; i < l; i++ ) {
1089                                                 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1090                                                 if ( sa6.sin6_family == AF_INET6 &&
1091                                                      !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1092                                                         break;
1093                                         }
1094
1095                                         if ( i < l ) {
1096                                                 /* We are already listening to in6addr_any */
1097 #ifdef NEW_LOGGING
1098                                                 LDAP_LOG(CONNECTION, WARNING,
1099                                                            "slapd_daemon_task: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n", 0, 0, 0 );
1100 #else
1101                                                 Debug( LDAP_DEBUG_CONNS,
1102                                                        "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1103                                                        0, 0, 0 );
1104 #endif
1105                                                 slapd_close( slap_listeners[l]->sl_sd );
1106                                                 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1107                                                 continue;
1108                                         }
1109                                 }
1110                         }
1111 #endif
1112 #ifdef NEW_LOGGING
1113                         LDAP_LOG( CONNECTION, ERR,
1114                                 "slapd_daemon_task: listen( %s, 5 ) failed errno=%d (%s)\n",
1115                                 slap_listeners[l]->sl_url, err, sock_errstr(err) );
1116 #else
1117                         Debug( LDAP_DEBUG_ANY,
1118                                 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1119                                         slap_listeners[l]->sl_url, err,
1120                                         sock_errstr(err) );
1121 #endif
1122                         return( (void*)-1 );
1123                 }
1124
1125                 slapd_add( slap_listeners[l]->sl_sd );
1126         }
1127
1128 #ifdef HAVE_NT_SERVICE_MANAGER
1129         if ( started_event != NULL ) {
1130                 ldap_pvt_thread_cond_signal( &started_event );
1131         }
1132 #endif
1133         /* initialization complete. Here comes the loop. */
1134
1135         while ( !slapd_shutdown ) {
1136                 ber_socket_t i;
1137                 int ns;
1138                 int at;
1139                 ber_socket_t nfds;
1140 #define SLAPD_EBADF_LIMIT 16
1141                 int ebadf = 0;
1142                 int emfile = 0;
1143
1144 #define SLAPD_IDLE_CHECK_LIMIT 4
1145                 time_t  now;
1146
1147
1148                 fd_set                  readfds;
1149                 fd_set                  writefds;
1150                 Sockaddr                from;
1151
1152 #if defined(SLAPD_RLOOKUPS)
1153                 struct hostent          *hp;
1154 #endif
1155                 struct timeval          zero;
1156                 struct timeval          *tvp;
1157
1158                 if( emfile ) {
1159                         now = slap_get_time();
1160                         connections_timeout_idle( now );
1161                 }
1162                 else if ( global_idletimeout > 0 ) {
1163                         now = slap_get_time();
1164                         if ( difftime( last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1165                                 connections_timeout_idle( now );
1166                         }
1167                 }
1168
1169 #ifdef SIGHUP
1170                 if( slapd_gentle_shutdown ) {
1171                         ber_socket_t active;
1172
1173                         if( slapd_gentle_shutdown == 1 ) {
1174                                 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1175                                 close_listeners( 1 );
1176                                 global_restrictops |= SLAP_RESTRICT_OP_WRITES;
1177                                 slapd_gentle_shutdown = 2;
1178                         }
1179
1180                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1181                         active = slap_daemon.sd_nactives;
1182                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1183                         if( active == 0 ) {
1184                                 slapd_shutdown = 2;
1185                                 break;
1186                         }
1187                 }
1188 #endif
1189
1190                 FD_ZERO( &writefds );
1191                 FD_ZERO( &readfds );
1192
1193                 zero.tv_sec = 0;
1194                 zero.tv_usec = 0;
1195
1196                 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1197
1198 #ifdef FD_SET_MANUAL_COPY
1199                 for( s = 0; s < nfds; s++ ) {
1200                         if(FD_ISSET( &slap_sd_readers, s )) {
1201                                 FD_SET( s, &readfds );
1202                         }
1203                         if(FD_ISSET( &slap_sd_writers, s )) {
1204                                 FD_SET( s, &writefds );
1205                         }
1206                 }
1207 #else
1208                 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
1209                 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
1210 #endif
1211                 assert(!FD_ISSET(wake_sds[0], &readfds));
1212                 FD_SET( wake_sds[0], &readfds );
1213
1214                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1215                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1216                                 continue;
1217                         if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds))
1218                             FD_SET( slap_listeners[l]->sl_sd, &readfds );
1219                 }
1220
1221 #ifndef HAVE_WINSOCK
1222                 nfds = slap_daemon.sd_nfds;
1223 #else
1224                 nfds = dtblsize;
1225 #endif
1226
1227                 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1228
1229                 at = ldap_pvt_thread_pool_backload(&connection_pool);
1230
1231 #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
1232                 tvp = NULL;
1233 #else
1234                 tvp = at ? &zero : NULL;
1235 #endif
1236
1237                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1238                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1239                                 continue;
1240
1241 #ifdef NEW_LOGGING
1242                         LDAP_LOG( CONNECTION, DETAIL1,
1243                                 "slapd_daemon_task: select: listen=%d "
1244                                 "active_threads=%d tvp=%s\n",
1245                                 slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
1246 #else
1247                         Debug( LDAP_DEBUG_CONNS,
1248                                 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1249                                         slap_listeners[l]->sl_sd, at,
1250                                         tvp == NULL ? "NULL" : "zero" );
1251 #endif
1252                 }
1253
1254                 switch(ns = select( nfds, &readfds,
1255 #ifdef HAVE_WINSOCK
1256                         /* don't pass empty fd_set */
1257                         ( writefds.fd_count > 0 ? &writefds : NULL ),
1258 #else
1259                         &writefds,
1260 #endif
1261                         NULL, tvp ))
1262                 {
1263                 case -1: {      /* failure - try again */
1264                                 int err = sock_errno();
1265
1266                                 if( err == EBADF
1267 #ifdef WSAENOTSOCK
1268                                         /* you'd think this would be EBADF */
1269                                         || err == WSAENOTSOCK
1270 #endif
1271                                 ) {
1272                                         if (++ebadf < SLAPD_EBADF_LIMIT)
1273                                                 continue;
1274                                 }
1275
1276                                 if( err != EINTR ) {
1277 #ifdef NEW_LOGGING
1278                                         LDAP_LOG( CONNECTION, INFO,
1279                                                 "slapd_daemon_task: select failed (%d): %s\n",
1280                                                 err, sock_errstr(err), 0 );
1281 #else
1282                                         Debug( LDAP_DEBUG_CONNS,
1283                                                 "daemon: select failed (%d): %s\n",
1284                                                 err, sock_errstr(err), 0 );
1285 #endif
1286                                         slapd_shutdown = 2;
1287                                 }
1288                         }
1289                         continue;
1290
1291                 case 0:         /* timeout - let threads run */
1292                         ebadf = 0;
1293 #ifdef NEW_LOGGING
1294                         LDAP_LOG( CONNECTION, DETAIL2,
1295                                    "slapd_daemon_task: select timeout - yielding\n", 0, 0, 0 );
1296 #else
1297                         Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1298                             0, 0, 0 );
1299 #endif
1300                         ldap_pvt_thread_yield();
1301                         continue;
1302
1303                 default:        /* something happened - deal with it */
1304                         if( slapd_shutdown ) continue;
1305
1306                         ebadf = 0;
1307 #ifdef NEW_LOGGING
1308                         LDAP_LOG( CONNECTION, DETAIL2,
1309                                    "slapd_daemon_task: activity on %d descriptors\n", ns, 0, 0 );
1310 #else
1311                         Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1312                                 ns, 0, 0 );
1313 #endif
1314                         /* FALL THRU */
1315                 }
1316
1317                 if( FD_ISSET( wake_sds[0], &readfds ) ) {
1318                         char c[BUFSIZ];
1319                         tcp_read( wake_sds[0], c, sizeof(c) );
1320 #ifdef NO_THREADS
1321                         waking = 0;
1322 #endif
1323                         continue;
1324                 }
1325
1326                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1327                         ber_socket_t s;
1328                         socklen_t len = sizeof(from);
1329                         long id;
1330                         slap_ssf_t ssf = 0;
1331                         char *authid = NULL;
1332
1333                         char    *dnsname = NULL;
1334                         char    *peeraddr;
1335 #ifdef LDAP_PF_LOCAL
1336                         char    peername[MAXPATHLEN + sizeof("PATH=")];
1337 #elif defined(LDAP_PF_INET6)
1338                         char    peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1339 #else
1340                         char    peername[sizeof("IP=255.255.255.255:65336")];
1341 #endif /* LDAP_PF_LOCAL */
1342
1343                         peername[0] = '\0';
1344
1345                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1346                                 continue;
1347
1348                         if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
1349                                 continue;
1350
1351 #ifdef LDAP_CONNECTIONLESS
1352                         if ( slap_listeners[l]->sl_is_udp )
1353                         {
1354                         /* The first time we receive a query, we set this
1355                          * up as a "connection". It remains open for the life
1356                          * of the slapd.
1357                          */
1358                                 if ( slap_listeners[l]->sl_is_udp < 2 )
1359                                 {
1360                                     id = connection_init(
1361                                         slap_listeners[l]->sl_sd,
1362                                         slap_listeners[l]->sl_url, "", "",
1363                                         slap_listeners[l]->sl_name,
1364                                         2, ssf, authid );
1365                                     slap_listeners[l]->sl_is_udp++;
1366                                 }
1367                                 continue;
1368                         }
1369 #endif
1370
1371                         s = accept( slap_listeners[l]->sl_sd,
1372                                 (struct sockaddr *) &from, &len );
1373                         if ( s == AC_SOCKET_INVALID ) {
1374                                 int err = sock_errno();
1375
1376 #ifdef EMFILE
1377                                 if( err == EMFILE ) {
1378                                         emfile++;
1379                                 } else
1380 #endif
1381 #ifdef ENFILE
1382                                 if( err == ENFILE ) {
1383                                         emfile++;
1384                                 } else
1385 #endif
1386                                 {
1387                                         emfile=0;
1388                                 }
1389
1390                                 if( emfile < 3 ) {
1391 #ifdef NEW_LOGGING
1392                                         LDAP_LOG( CONNECTION, ERR,
1393                                                 "slapd_daemon_task: accept(%ld) failed errno=%d (%s)\n",
1394                                                 (long)slap_listeners[l]->sl_sd,
1395                                                 err, sock_errstr(err) );
1396 #else
1397                                         Debug( LDAP_DEBUG_ANY,
1398                                             "daemon: accept(%ld) failed errno=%d (%s)\n",
1399                                             (long) slap_listeners[l]->sl_sd, err,
1400                                             sock_errstr(err) );
1401 #endif
1402                                 } else {
1403                                         /* prevent busy loop */
1404 #  ifdef HAVE_USLEEP
1405                                         if( emfile % 4 == 3 ) usleep( 250 );
1406 #  else
1407                                         if( emfile % 8 == 7 ) sleep( 1 );
1408 #  endif
1409                                 }
1410
1411                                 ldap_pvt_thread_yield();
1412                                 continue;
1413                         }
1414                         emfile = 0;
1415
1416 #ifndef HAVE_WINSOCK
1417                         /* make sure descriptor number isn't too great */
1418                         if ( s >= dtblsize ) {
1419 #ifdef NEW_LOGGING
1420                                 LDAP_LOG( CONNECTION, ERR,
1421                                    "slapd_daemon_task: %ld beyond descriptor table size %ld\n",
1422                                    (long)s, (long)dtblsize, 0 );
1423 #else
1424                                 Debug( LDAP_DEBUG_ANY,
1425                                         "daemon: %ld beyond descriptor table size %ld\n",
1426                                         (long) s, (long) dtblsize, 0 );
1427 #endif
1428
1429                                 slapd_close(s);
1430                                 ldap_pvt_thread_yield();
1431                                 continue;
1432                         }
1433 #endif
1434
1435 #ifdef LDAP_DEBUG
1436                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1437
1438                         /* newly accepted stream should not be in any of the FD SETS */
1439                         assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
1440                         assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
1441                         assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
1442
1443                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1444 #endif
1445
1446 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1447 #ifdef LDAP_PF_LOCAL
1448                         /* for IPv4 and IPv6 sockets only */
1449                         if ( from.sa_addr.sa_family != AF_LOCAL )
1450 #endif /* LDAP_PF_LOCAL */
1451                         {
1452                                 int rc;
1453                                 int tmp;
1454 #ifdef SO_KEEPALIVE
1455                                 /* enable keep alives */
1456                                 tmp = 1;
1457                                 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1458                                         (char *) &tmp, sizeof(tmp) );
1459                                 if ( rc == AC_SOCKET_ERROR ) {
1460                                         int err = sock_errno();
1461 #ifdef NEW_LOGGING
1462                                         LDAP_LOG( CONNECTION, ERR,
1463                                                 "slapd_daemon_task: setsockopt( %ld, SO_KEEPALIVE)"
1464                                            " failed errno=%d (%s)\n",
1465                                                 (long)s, err, sock_errstr(err) );
1466 #else
1467                                         Debug( LDAP_DEBUG_ANY,
1468                                                 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1469                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1470 #endif
1471                                 }
1472 #endif
1473 #ifdef TCP_NODELAY
1474                                 /* enable no delay */
1475                                 tmp = 1;
1476                                 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1477                                         (char *)&tmp, sizeof(tmp) );
1478                                 if ( rc == AC_SOCKET_ERROR ) {
1479                                         int err = sock_errno();
1480 #ifdef NEW_LOGGING
1481                                         LDAP_LOG( CONNECTION, ERR,
1482                                                 "slapd_daemon_task: setsockopt( %ld, "
1483                                                 "TCP_NODELAY) failed errno=%d (%s)\n",
1484                                                 (long)s, err, sock_errstr(err) );
1485 #else
1486                                         Debug( LDAP_DEBUG_ANY,
1487                                                 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1488                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1489 #endif
1490                                 }
1491 #endif
1492                         }
1493 #endif
1494
1495 #ifdef NEW_LOGGING
1496                         LDAP_LOG( CONNECTION, DETAIL1,
1497                                 "slapd_daemon_task: new connection on %ld\n", (long)s, 0, 0 );
1498 #else
1499                         Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1500                                 (long) s, 0, 0 );
1501 #endif
1502                         switch ( from.sa_addr.sa_family ) {
1503 #  ifdef LDAP_PF_LOCAL
1504                         case AF_LOCAL:
1505                                 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1506                                 ssf = LDAP_PVT_SASL_LOCAL_SSF;
1507                                 dnsname = "local";
1508                                 break;
1509 #endif /* LDAP_PF_LOCAL */
1510
1511 #  ifdef LDAP_PF_INET6
1512                         case AF_INET6:
1513                         if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1514                                 peeraddr = inet_ntoa( *((struct in_addr *)
1515                                                         &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1516                                 sprintf( peername, "IP=%s:%d",
1517                                          peeraddr != NULL ? peeraddr : "unknown",
1518                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1519                         } else {
1520                                 char addr[INET6_ADDRSTRLEN];
1521
1522                                 peeraddr = (char *) inet_ntop( AF_INET6,
1523                                                       &from.sa_in6_addr.sin6_addr,
1524                                                       addr, sizeof addr );
1525                                 sprintf( peername, "IP=%s %d",
1526                                          peeraddr != NULL ? peeraddr : "unknown",
1527                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1528                         }
1529                         break;
1530 #  endif /* LDAP_PF_INET6 */
1531
1532                         case AF_INET:
1533                         peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1534                         sprintf( peername, "IP=%s:%d",
1535                                 peeraddr != NULL ? peeraddr : "unknown",
1536                                 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1537                                 break;
1538
1539                         default:
1540                                 slapd_close(s);
1541                                 continue;
1542                         }
1543
1544                         if ( ( from.sa_addr.sa_family == AF_INET )
1545 #ifdef LDAP_PF_INET6
1546                                 || ( from.sa_addr.sa_family == AF_INET6 )
1547 #endif
1548                         ) {
1549 #ifdef SLAPD_RLOOKUPS
1550                                 if ( use_reverse_lookup ) {
1551 #  ifdef LDAP_PF_INET6
1552                                         if ( from.sa_addr.sa_family == AF_INET6 )
1553                                                 hp = gethostbyaddr(
1554                                                         (char *)&(from.sa_in6_addr.sin6_addr),
1555                                                         sizeof(from.sa_in6_addr.sin6_addr),
1556                                                         AF_INET6 );
1557                                         else
1558 #  endif /* LDAP_PF_INET6 */
1559                                         hp = gethostbyaddr(
1560                                                 (char *) &(from.sa_in_addr.sin_addr),
1561                                                 sizeof(from.sa_in_addr.sin_addr),
1562                                                 AF_INET );
1563                                         dnsname = hp ? ldap_pvt_str2lower( hp->h_name ) : NULL;
1564                                 }
1565 #else
1566                                 dnsname = NULL;
1567 #endif /* SLAPD_RLOOKUPS */
1568
1569 #ifdef HAVE_TCPD
1570                                 if ( !hosts_ctl("slapd",
1571                                                 dnsname != NULL ? dnsname : STRING_UNKNOWN,
1572                                                 peeraddr != NULL ? peeraddr : STRING_UNKNOWN,
1573                                                 STRING_UNKNOWN ))
1574                                 {
1575                                         /* DENY ACCESS */
1576                                         Statslog( LDAP_DEBUG_ANY,
1577                                                 "fd=%ld host access from %s (%s) denied.\n",
1578                                                 (long) s,
1579                                                 dnsname != NULL ? dnsname : "unknown",
1580                                                 peeraddr != NULL ? peeraddr : "unknown",
1581                                                 0, 0 );
1582                                         slapd_close(s);
1583                                         continue;
1584                                 }
1585 #endif /* HAVE_TCPD */
1586                         }
1587
1588                         id = connection_init(s,
1589                                 slap_listeners[l]->sl_url,
1590                                 dnsname != NULL ? dnsname : "unknown",
1591                                 peername,
1592                                 slap_listeners[l]->sl_name,
1593 #ifdef HAVE_TLS
1594                                 slap_listeners[l]->sl_is_tls,
1595 #else
1596                                 0,
1597 #endif
1598                                 ssf,
1599                                 authid );
1600
1601                         if( authid ) ch_free(authid);
1602
1603                         if( id < 0 ) {
1604 #ifdef NEW_LOGGING
1605                                 LDAP_LOG( CONNECTION, INFO,
1606                                         "slapd_daemon_task: connection_init(%ld, %s, %s) failed.\n",
1607                                         (long)s, peername, slap_listeners[l]->sl_name );
1608 #else
1609                                 Debug( LDAP_DEBUG_ANY,
1610                                         "daemon: connection_init(%ld, %s, %s) failed.\n",
1611                                         (long) s,
1612                                         peername,
1613                                         slap_listeners[l]->sl_name );
1614 #endif
1615                                 slapd_close(s);
1616                                 continue;
1617                         }
1618
1619                         Statslog( LDAP_DEBUG_STATS,
1620                                 "daemon: conn=%ld fd=%ld connection from %s (%s) accepted.\n",
1621                                 id, (long) s,
1622                                 peername,
1623                                 slap_listeners[l]->sl_name,
1624                                 0 );
1625
1626                         slapd_add( s );
1627                         continue;
1628                 }
1629
1630 #ifdef LDAP_DEBUG
1631 #ifdef NEW_LOGGING
1632                 LDAP_LOG( CONNECTION, DETAIL2,
1633                            "slapd_daemon_task: activity on ", 0, 0, 0 );
1634 #else
1635                 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1636 #endif
1637 #ifdef HAVE_WINSOCK
1638                 for ( i = 0; i < readfds.fd_count; i++ ) {
1639 #ifdef NEW_LOGGING
1640                         LDAP_LOG( CONNECTION, DETAIL2,
1641                                 " %d%s", readfds.fd_array[i], "r", 0, 0 );
1642 #else
1643                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1644                                 readfds.fd_array[i], "r", 0 );
1645 #endif
1646                 }
1647                 for ( i = 0; i < writefds.fd_count; i++ ) {
1648 #ifdef NEW_LOGGING
1649                         LDAP_LOG( CONNECTION, DETAIL2,
1650                                 " %d%s", writefds.fd_array[i], "w" , 0 );
1651 #else
1652                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1653                                 writefds.fd_array[i], "w", 0 );
1654 #endif
1655                 }
1656
1657 #else
1658                 for ( i = 0; i < nfds; i++ ) {
1659                         int     r, w;
1660                         int     is_listener = 0;
1661
1662                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1663                                 if ( i == slap_listeners[l]->sl_sd ) {
1664 #ifdef LDAP_CONNECTIONLESS
1665                                 /* The listener is the data port. Don't
1666                                  * skip it.
1667                                  */
1668                                         if (slap_listeners[l]->sl_is_udp)
1669                                                 continue;
1670 #endif
1671                                         is_listener = 1;
1672                                         break;
1673                                 }
1674                         }
1675                         if ( is_listener ) {
1676                                 continue;
1677                         }
1678                         r = FD_ISSET( i, &readfds );
1679                         w = FD_ISSET( i, &writefds );
1680                         if ( r || w ) {
1681 #ifdef NEW_LOGGING
1682                                 LDAP_LOG( CONNECTION, DETAIL2,
1683                                         " %d%s%s", i, r ? "r" : "", w ? "w" : "" );
1684 #else
1685                                 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1686                                     r ? "r" : "", w ? "w" : "" );
1687 #endif
1688                         }
1689                 }
1690 #endif
1691 #ifdef NEW_LOGGING
1692                 LDAP_LOG( CONNECTION, DETAIL2, "\n", 0, 0, 0 );
1693 #else
1694                 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1695 #endif
1696
1697 #endif
1698
1699                 /* loop through the writers */
1700 #ifdef HAVE_WINSOCK
1701                 for ( i = 0; i < writefds.fd_count; i++ )
1702 #else
1703                 for ( i = 0; i < nfds; i++ )
1704 #endif
1705                 {
1706                         ber_socket_t wd;
1707                         int is_listener = 0;
1708 #ifdef HAVE_WINSOCK
1709                         wd = writefds.fd_array[i];
1710 #else
1711                         if( ! FD_ISSET( i, &writefds ) ) {
1712                                 continue;
1713                         }
1714                         wd = i;
1715 #endif
1716
1717                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1718                                 if ( i == slap_listeners[l]->sl_sd ) {
1719 #ifdef LDAP_CONNECTIONLESS
1720                                         if (slap_listeners[l]->sl_is_udp)
1721                                                 continue;
1722 #endif
1723                                         is_listener = 1;
1724                                         break;
1725                                 }
1726                         }
1727                         if ( is_listener ) {
1728                                 continue;
1729                         }
1730 #ifdef NEW_LOGGING
1731                         LDAP_LOG( CONNECTION, DETAIL2,
1732                                 "slapd_daemon_task: write active on %d\n", wd, 0, 0 );
1733 #else
1734                         Debug( LDAP_DEBUG_CONNS,
1735                                 "daemon: write active on %d\n",
1736                                 wd, 0, 0 );
1737 #endif
1738                         /*
1739                          * NOTE: it is possible that the connection was closed
1740                          * and that the stream is now inactive.
1741                          * connection_write() must valid the stream is still
1742                          * active.
1743                          */
1744
1745                         if ( connection_write( wd ) < 0 ) {
1746                                 FD_CLR( (unsigned) wd, &readfds );
1747                                 slapd_close( wd );
1748                         }
1749                 }
1750
1751 #ifdef HAVE_WINSOCK
1752                 for ( i = 0; i < readfds.fd_count; i++ )
1753 #else
1754                 for ( i = 0; i < nfds; i++ )
1755 #endif
1756                 {
1757                         ber_socket_t rd;
1758                         int is_listener = 0;
1759
1760 #ifdef HAVE_WINSOCK
1761                         rd = readfds.fd_array[i];
1762 #else
1763                         if( ! FD_ISSET( i, &readfds ) ) {
1764                                 continue;
1765                         }
1766                         rd = i;
1767 #endif
1768
1769                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1770                                 if ( rd == slap_listeners[l]->sl_sd ) {
1771 #ifdef LDAP_CONNECTIONLESS
1772                                         if (slap_listeners[l]->sl_is_udp)
1773                                                 continue;
1774 #endif
1775                                         is_listener = 1;
1776                                         break;
1777                                 }
1778                         }
1779                         if ( is_listener ) {
1780                                 continue;
1781                         }
1782
1783 #ifdef NEW_LOGGING
1784                         LDAP_LOG( CONNECTION, DETAIL2,
1785                                 "slapd_daemon_task: read activity on %d\n", rd, 0, 0 );
1786 #else
1787                         Debug ( LDAP_DEBUG_CONNS,
1788                                 "daemon: read activity on %d\n", rd, 0, 0 );
1789 #endif
1790                         /*
1791                          * NOTE: it is possible that the connection was closed
1792                          * and that the stream is now inactive.
1793                          * connection_read() must valid the stream is still
1794                          * active.
1795                          */
1796
1797                         if ( connection_read( rd ) < 0 ) {
1798                                 slapd_close( rd );
1799                         }
1800                 }
1801                 ldap_pvt_thread_yield();
1802         }
1803
1804         if( slapd_shutdown == 1 ) {
1805 #ifdef NEW_LOGGING
1806                 LDAP_LOG( CONNECTION, CRIT,
1807                    "slapd_daemon_task: shutdown requested and initiated.\n", 0, 0, 0 );
1808 #else
1809                 Debug( LDAP_DEBUG_TRACE,
1810                         "daemon: shutdown requested and initiated.\n",
1811                         0, 0, 0 );
1812 #endif
1813
1814         } else if ( slapd_shutdown == 2 ) {
1815 #ifdef HAVE_NT_SERVICE_MANAGER
1816 #ifdef NEW_LOGGING
1817                         LDAP_LOG( CONNECTION, CRIT,
1818                            "slapd_daemon_task: shutdown initiated by Service Manager.\n",
1819                            0, 0, 0);
1820 #else
1821                         Debug( LDAP_DEBUG_TRACE,
1822                                "daemon: shutdown initiated by Service Manager.\n",
1823                                0, 0, 0);
1824 #endif
1825 #else /* !HAVE_NT_SERVICE_MANAGER */
1826 #ifdef NEW_LOGGING
1827                         LDAP_LOG( CONNECTION, CRIT,
1828                            "slapd_daemon_task: abnormal condition, "
1829                            "shutdown initiated.\n", 0, 0, 0 );
1830 #else
1831                         Debug( LDAP_DEBUG_TRACE,
1832                                "daemon: abnormal condition, shutdown initiated.\n",
1833                                0, 0, 0 );
1834 #endif
1835 #endif /* !HAVE_NT_SERVICE_MANAGER */
1836         } else {
1837 #ifdef NEW_LOGGING
1838                 LDAP_LOG( CONNECTION, CRIT,
1839                    "slapd_daemon_task: no active streams, shutdown initiated.\n",
1840                    0, 0, 0 );
1841 #else
1842                 Debug( LDAP_DEBUG_TRACE,
1843                        "daemon: no active streams, shutdown initiated.\n",
1844                        0, 0, 0 );
1845 #endif
1846         }
1847
1848         if( slapd_gentle_shutdown != 2 )
1849                 close_listeners ( 0 );
1850         free ( slap_listeners );
1851         slap_listeners = NULL;
1852
1853 #ifdef NEW_LOGGING
1854         LDAP_LOG( CONNECTION, CRIT,
1855                 "slapd_daemon_task: shutdown waiting for %d threads to terminate.\n",
1856                 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1857 #else
1858         Debug( LDAP_DEBUG_ANY,
1859             "slapd shutdown: waiting for %d threads to terminate\n",
1860             ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1861 #endif
1862         ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1863
1864         return NULL;
1865 }
1866
1867
1868 int slapd_daemon( void )
1869 {
1870         int rc;
1871
1872         connections_init();
1873
1874 #define SLAPD_LISTENER_THREAD 1
1875 #if defined( SLAPD_LISTENER_THREAD )
1876         {
1877                 ldap_pvt_thread_t       listener_tid;
1878
1879                 /* listener as a separate THREAD */
1880                 rc = ldap_pvt_thread_create( &listener_tid,
1881                         0, slapd_daemon_task, NULL );
1882
1883                 if ( rc != 0 ) {
1884 #ifdef NEW_LOGGING
1885                         LDAP_LOG( CONNECTION, ERR,
1886                                 "slapd_daemon: listener ldap_pvt_thread_create failed (%d).\n",
1887                                 rc, 0, 0 );
1888 #else
1889                         Debug( LDAP_DEBUG_ANY,
1890                         "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
1891 #endif
1892                         return rc;
1893                 }
1894
1895                 /* wait for the listener thread to complete */
1896                 ldap_pvt_thread_join( listener_tid, (void *) NULL );
1897         }
1898 #else
1899         /* experimental code */
1900         slapd_daemon_task( NULL );
1901 #endif
1902
1903         return 0;
1904
1905 }
1906
1907 int sockinit(void)
1908 {
1909 #if defined( HAVE_WINSOCK2 )
1910     WORD wVersionRequested;
1911         WSADATA wsaData;
1912         int err;
1913
1914         wVersionRequested = MAKEWORD( 2, 0 );
1915
1916         err = WSAStartup( wVersionRequested, &wsaData );
1917         if ( err != 0 ) {
1918                 /* Tell the user that we couldn't find a usable */
1919                 /* WinSock DLL.                                  */
1920                 return -1;
1921         }
1922
1923         /* Confirm that the WinSock DLL supports 2.0.*/
1924         /* Note that if the DLL supports versions greater    */
1925         /* than 2.0 in addition to 2.0, it will still return */
1926         /* 2.0 in wVersion since that is the version we      */
1927         /* requested.                                        */
1928
1929         if ( LOBYTE( wsaData.wVersion ) != 2 ||
1930                 HIBYTE( wsaData.wVersion ) != 0 )
1931         {
1932             /* Tell the user that we couldn't find a usable */
1933             /* WinSock DLL.                                  */
1934             WSACleanup();
1935             return -1;
1936         }
1937
1938         /* The WinSock DLL is acceptable. Proceed. */
1939 #elif defined( HAVE_WINSOCK )
1940         WSADATA wsaData;
1941         if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
1942             return -1;
1943         }
1944 #endif
1945         return 0;
1946 }
1947
1948 int sockdestroy(void)
1949 {
1950 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
1951         WSACleanup();
1952 #endif
1953         return 0;
1954 }
1955
1956 RETSIGTYPE
1957 slap_sig_shutdown( int sig )
1958 {
1959 #ifdef NEW_LOGGING
1960         LDAP_LOG( CONNECTION, CRIT,
1961                 "slap_sig_shutdown: signal %d\n", sig, 0, 0 );
1962 #else
1963         Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
1964 #endif
1965
1966         /*
1967          * If the NT Service Manager is controlling the server, we don't
1968          * want SIGBREAK to kill the server. For some strange reason,
1969          * SIGBREAK is generated when a user logs out.
1970          */
1971
1972 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
1973         if (is_NT_Service && sig == SIGBREAK)
1974 #ifdef NEW_LOGGING
1975             LDAP_LOG( CONNECTION, CRIT,
1976                     "slap_sig_shutdown: SIGBREAK ignored.\n", 0, 0, 0 );
1977 #else
1978             Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n",
1979                   0, 0, 0);
1980 #endif
1981         else
1982 #endif
1983 #ifdef SIGHUP
1984         if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
1985                 slapd_gentle_shutdown = 1;
1986         else
1987 #endif
1988         slapd_shutdown = 1;
1989
1990         WAKE_LISTENER(1);
1991
1992         /* reinstall self */
1993         (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
1994 }
1995
1996 RETSIGTYPE
1997 slap_sig_wake( int sig )
1998 {
1999         WAKE_LISTENER(1);
2000
2001         /* reinstall self */
2002         (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2003 }
2004
2005
2006 void slapd_add_internal(ber_socket_t s) {
2007         slapd_add(s);
2008 }
2009
2010 Listener ** slapd_get_listeners(void) {
2011         return slap_listeners;
2012 }