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 = ldap_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( lutil_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( lutil_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         ldap_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 ) socktype = SOCK_DGRAM;
 680 #endif
 681                 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
 682                 if ( l.sl_sd == AC_SOCKET_INVALID ) {
 683                         int err = sock_errno();
 684 #ifdef NEW_LOGGING
 685                         LDAP_LOG( CONNECTION, ERR,
 686                                 "slap_open_listener: socket() failed errno=%d (%s)\n",
 687                                 err, sock_errstr(err), 0 );
 688 #else
 689                         Debug( LDAP_DEBUG_ANY,
 690                                 "daemon: socket() failed errno=%d (%s)\n", err,
 691                                 sock_errstr(err), 0 );
 692 #endif
 693                         sal++;
 694                         continue;
 695                 }
 696 #ifndef HAVE_WINSOCK
 697                 if ( l.sl_sd >= dtblsize ) {
 698 #ifdef NEW_LOGGING
 699                         LDAP_LOG( CONNECTION, ERR,
 700                                 "slap_open_listener: listener descriptor %ld is too "
 701                                 "great %ld\n", (long)l.sl_sd, (long)dtblsize, 0 );
 702 #else
 703                         Debug( LDAP_DEBUG_ANY,
 704                                "daemon: listener descriptor %ld is too great %ld\n",
 705                                (long) l.sl_sd, (long) dtblsize, 0 );
 706 #endif
 707                         tcp_close( l.sl_sd );
 708                         sal++;
 709                         continue;
 710                 }
 711 #endif
 712 #ifdef LDAP_PF_LOCAL
 713                 if ( (*sal)->sa_family == AF_LOCAL ) {
 714                         unlink ( ((struct sockaddr_un *)*sal)->sun_path );
 715                 } else
 716 #endif
 717                 {
 718 #ifdef SO_REUSEADDR
 719                         /* enable address reuse */
 720                         tmp = 1;
 721                         rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
 722                                          (char *) &tmp, sizeof(tmp) );
 723                         if ( rc == AC_SOCKET_ERROR ) {
 724                                 int err = sock_errno();
 725 #ifdef NEW_LOGGING
 726                                 LDAP_LOG( CONNECTION, INFO,
 727                                         "slap_open_listener: setsockopt( %ld, SO_REUSEADDR ) "
 728                                         "failed errno %d (%s)\n", (long)l.sl_sd, err,
 729                                         sock_errstr(err) );
 730 #else
 731                                 Debug( LDAP_DEBUG_ANY,
 732                                        "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
 733                                        (long) l.sl_sd, err, sock_errstr(err) );
 734 #endif
 735                         }
 736 #endif
 737                 }
 738
 739                 switch( (*sal)->sa_family ) {
 740                 case AF_INET:
 741                         addrlen = sizeof(struct sockaddr_in);
 742                         break;
 743 #ifdef LDAP_PF_INET6
 744                 case AF_INET6:
 745 #ifdef IPV6_V6ONLY
 746                         /* Try to use IPv6 sockets for IPv6 only */
 747                         tmp = 1;
 748                         rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
 749                                          (char *) &tmp, sizeof(tmp) );
 750                         if ( rc == AC_SOCKET_ERROR ) {
 751                                 int err = sock_errno();
 752 #ifdef NEW_LOGGING
 753                                 LDAP_LOG( CONNECTION, INFO,
 754                                            "slap_open_listener: setsockopt( %ld, IPV6_V6ONLY ) failed errno %d (%s)\n",
 755                                            (long)l.sl_sd, err, sock_errstr(err) );
 756 #else
 757                                 Debug( LDAP_DEBUG_ANY,
 758                                        "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
 759                                        (long) l.sl_sd, err, sock_errstr(err) );
 760 #endif
 761                         }
 762 #endif
 763                         addrlen = sizeof(struct sockaddr_in6);
 764                         break;
 765 #endif
 766 #ifdef LDAP_PF_LOCAL
 767                 case AF_LOCAL:
 768                         addrlen = sizeof(struct sockaddr_un);
 769                         break;
 770 #endif
 771                 }
 772
 773                 if (bind(l.sl_sd, *sal, addrlen)) {
 774                         err = sock_errno();
 775 #ifdef NEW_LOGGING
 776                 LDAP_LOG( CONNECTION, INFO,
 777                         "slap_open_listener: bind(%ld) failed errno=%d (%s)\n",
 778                         (long)l.sl_sd, err, sock_errstr(err) );
 779 #else
 780                 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
 781                        (long) l.sl_sd, err, sock_errstr(err) );
 782 #endif
 783                         tcp_close( l.sl_sd );
 784                         sal++;
 785                         continue;
 786                 }
 787
 788         switch ( (*sal)->sa_family ) {
 789 #ifdef LDAP_PF_LOCAL
 790         case AF_LOCAL: {
 791                 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
 792                 if ( chmod( addr, perms ) < 0 && crit ) {
 793                         int err = sock_errno();
 794 #ifdef NEW_LOGGING
 795                         LDAP_LOG( CONNECTION, INFO,
 796                                 "slap_open_listener: fchmod(%ld) failed errno=%d (%s)\n",
 797                                 (long)l.sl_sd, err, sock_errstr(err) );
 798 #else
 799                         Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
 800                                (long) l.sl_sd, err, sock_errstr(err) );
 801 #endif
 802                         tcp_close( l.sl_sd );
 803                         slap_free_listener_addresses(psal);
 804                         return -1;
 805                 }
 806                 l.sl_name = ch_malloc( strlen(addr) + sizeof("PATH=") );
 807                 sprintf( l.sl_name, "PATH=%s", addr );
 808         } break;
 809 #endif /* LDAP_PF_LOCAL */
 810
 811         case AF_INET: {
 812                 char *s;
 813 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
 814                 char addr[INET_ADDRSTRLEN];
 815                 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
 816                            addr, sizeof(addr) );
 817                 s = addr;
 818 #else
 819                 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
 820 #endif
 821                 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
 822                 l.sl_name = ch_malloc( sizeof("IP=255.255.255.255:65535") );
 823                 sprintf( l.sl_name, "IP=%s:%d",
 824                          s != NULL ? s : "unknown" , port );
 825         } break;
 826
 827 #ifdef LDAP_PF_INET6
 828         case AF_INET6: {
 829                 char addr[INET6_ADDRSTRLEN];
 830                 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
 831                            addr, sizeof addr);
 832                 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
 833                 l.sl_name = ch_malloc( strlen(addr) + sizeof("IP= 65535") );
 834                 sprintf( l.sl_name, "IP=%s %d", addr, port );
 835         } break;
 836 #endif /* LDAP_PF_INET6 */
 837
 838         default:
 839 #ifdef NEW_LOGGING
 840                 LDAP_LOG( CONNECTION, INFO,
 841                         "slap_open_listener: unsupported address family (%d)\n",
 842                         (int)(*sal)->sa_family, 0, 0 );
 843 #else
 844                 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
 845                         (int) (*sal)->sa_family, 0, 0 );
 846 #endif
 847                 break;
 848         }
 849
 850         AC_MEMCPY(&l.sl_sa, *sal, addrlen);
 851         l.sl_url = ch_strdup( url );
 852         li = ch_malloc( sizeof( Listener ) );
 853         *li = l;
 854         slap_listeners[*cur] = li;
 855         (*cur)++;
 856         sal++;
 857
 858         } /* while ( *sal != NULL ) */
 859
 860         slap_free_listener_addresses(psal);
 861
 862
 863 #ifdef NEW_LOGGING
 864         LDAP_LOG( CONNECTION, RESULTS,
 865                         "slap_open_listener: daemon initialzed %s\n", l.sl_url, 0, 0 );
 866 #else
 867         Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
 868                 l.sl_url, 0, 0 );
 869 #endif
 870         return 0;
 871 }
 872
 873 static int sockinit(void);
 874 static int sockdestroy(void);
 875
 876 int slapd_daemon_init( const char *urls )
 877 {
 878         int i, j, n, rc;
 879         char **u;
 880
 881 #ifdef NEW_LOGGING
 882         LDAP_LOG( CONNECTION, ARGS,
 883                 "slapd_daemon_init: %s\n", urls ? urls : "<null>", 0, 0 );
 884 #else
 885         Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
 886                 urls ? urls : "<null>", 0, 0 );
 887 #endif
 888         if( (rc = sockinit()) != 0 ) {
 889                 return rc;
 890         }
 891
 892 #ifdef HAVE_SYSCONF
 893         dtblsize = sysconf( _SC_OPEN_MAX );
 894 #elif HAVE_GETDTABLESIZE
 895         dtblsize = getdtablesize();
 896 #else
 897         dtblsize = FD_SETSIZE;
 898 #endif
 899
 900 #ifdef FD_SETSIZE
 901         if(dtblsize > FD_SETSIZE) {
 902                 dtblsize = FD_SETSIZE;
 903         }
 904 #endif  /* !FD_SETSIZE */
 905
 906         /* open a pipe (or something equivalent connected to itself).
 907          * we write a byte on this fd whenever we catch a signal. The main
 908          * loop will be select'ing on this socket, and will wake up when
 909          * this byte arrives.
 910          */
 911         if( (rc = lutil_pair( wake_sds )) < 0 ) {
 912 #ifdef NEW_LOGGING
 913                 LDAP_LOG( CONNECTION, ERR,
 914                         "slap_daemon_init: lutil_pair() failed rc=%d\n", rc, 0, 0);
 915 #else
 916                 Debug( LDAP_DEBUG_ANY,
 917                         "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
 918 #endif
 919                 return rc;
 920         }
 921
 922         FD_ZERO( &slap_daemon.sd_readers );
 923         FD_ZERO( &slap_daemon.sd_writers );
 924
 925         if( urls == NULL ) {
 926                 urls = "ldap:///";
 927         }
 928
 929         u = ldap_str2charray( urls, " " );
 930
 931         if( u == NULL || u[0] == NULL ) {
 932 #ifdef NEW_LOGGING
 933                 LDAP_LOG( CONNECTION, ERR,
 934                         "slap_daemon_init: no urls (%s) provided.\n", urls, 0, 0 );
 935 #else
 936                 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
 937                         urls, 0, 0 );
 938 #endif
 939                 return -1;
 940         }
 941
 942         for( i=0; u[i] != NULL; i++ ) {
 943 #ifdef NEW_LOGGING
 944                 LDAP_LOG( CONNECTION, DETAIL1,
 945                         "slap_daemon_init: listen on %s\n.", u[i], 0, 0 );
 946 #else
 947                 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
 948                         u[i], 0, 0 );
 949 #endif
 950         }
 951
 952         if( i == 0 ) {
 953 #ifdef NEW_LOGGING
 954                 LDAP_LOG( CONNECTION, INFO,
 955                          "slap_daemon_init: no listeners to open (%s)\n", urls, 0, 0 );
 956 #else
 957                 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
 958                         urls, 0, 0 );
 959 #endif
 960                 ldap_charray_free( u );
 961                 return -1;
 962         }
 963
 964 #ifdef NEW_LOGGING
 965         LDAP_LOG( CONNECTION, INFO,
 966                 "slap_daemon_init: %d listeners to open...\n", i, 0, 0 );
 967 #else
 968         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
 969                 i, 0, 0 );
 970 #endif
 971         slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
 972
 973         for(n = 0, j = 0; u[n]; n++ ) {
 974                 if ( slap_open_listener( u[n], &i, &j ) ) {
 975                         ldap_charray_free( u );
 976                         return -1;
 977                 }
 978         }
 979         slap_listeners[j] = NULL;
 980
 981 #ifdef NEW_LOGGING
 982         LDAP_LOG( CONNECTION, DETAIL1,
 983                 "slap_daemon_init: %d listeners opened\n", i, 0, 0 );
 984 #else
 985         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
 986                 i, 0, 0 );
 987 #endif
 988
 989 #ifdef HAVE_SLP
 990         slapd_slp_init( urls );
 991         slapd_slp_reg();
 992 #endif
 993
 994         ldap_charray_free( u );
 995         ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
 996         return !i;
 997 }
 998
 999
1000 int
1001 slapd_daemon_destroy(void)
1002 {
1003         connections_destroy();
1004         tcp_close( wake_sds[1] );
1005         tcp_close( wake_sds[0] );
1006         sockdestroy();
1007
1008 #ifdef HAVE_SLP
1009         slapd_slp_dereg();
1010         slapd_slp_deinit();
1011 #endif
1012
1013         return 0;
1014 }
1015
1016
1017 static void
1018 close_listeners(
1019         int remove
1020 )
1021 {
1022         int l;
1023
1024         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1025                 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1026                         if ( remove )
1027                                 slapd_remove( slap_listeners[l]->sl_sd, 0 );
1028 #ifdef LDAP_PF_LOCAL
1029                         if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1030                                 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1031                         }
1032 #endif /* LDAP_PF_LOCAL */
1033                         slapd_close( slap_listeners[l]->sl_sd );
1034                 }
1035                 if ( slap_listeners[l]->sl_url )
1036                         free ( slap_listeners[l]->sl_url );
1037                 if ( slap_listeners[l]->sl_name )
1038                         free ( slap_listeners[l]->sl_name );
1039                 free ( slap_listeners[l] );
1040                 slap_listeners[l] = NULL;
1041         }
1042 }
1043
1044
1045 static void *
1046 slapd_daemon_task(
1047         void *ptr
1048 )
1049 {
1050         int l;
1051         time_t  last_idle_check = 0;
1052         time( &starttime );
1053
1054         if ( global_idletimeout > 0 ) {
1055                 last_idle_check = slap_get_time();
1056         }
1057         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1058                 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1059                         continue;
1060 #ifdef LDAP_CONNECTIONLESS
1061                 /* Since this is connectionless, the data port is the
1062                  * listening port. The listen() and accept() calls
1063                  * are unnecessary.
1064                  */
1065                 if ( slap_listeners[l]->sl_is_udp ) {
1066                         slapd_add( slap_listeners[l]->sl_sd );
1067                         continue;
1068                 }
1069 #endif
1070
1071                 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1072                         int err = sock_errno();
1073
1074 #ifdef LDAP_PF_INET6
1075                         /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1076                          * we are already listening to in6addr_any, then we want to ignore
1077                          * this and continue.
1078                          */
1079                         if ( err == EADDRINUSE ) {
1080                                 int i;
1081                                 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1082                                 struct sockaddr_in6 sa6;
1083
1084                                 if ( sa.sin_family == AF_INET &&
1085                                      sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1086                                         for ( i = 0 ; i < l; i++ ) {
1087                                                 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1088                                                 if ( sa6.sin6_family == AF_INET6 &&
1089                                                      !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1090                                                         break;
1091                                         }
1092
1093                                         if ( i < l ) {
1094                                                 /* We are already listening to in6addr_any */
1095 #ifdef NEW_LOGGING
1096                                                 LDAP_LOG(CONNECTION, WARNING,
1097                                                            "slapd_daemon_task: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n", 0, 0, 0 );
1098 #else
1099                                                 Debug( LDAP_DEBUG_CONNS,
1100                                                        "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1101                                                        0, 0, 0 );
1102 #endif
1103                                                 slapd_close( slap_listeners[l]->sl_sd );
1104                                                 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1105                                                 continue;
1106                                         }
1107                                 }
1108                         }
1109 #endif
1110 #ifdef NEW_LOGGING
1111                         LDAP_LOG( CONNECTION, 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 #ifdef SIGHUP
1168                 if( slapd_gentle_shutdown ) {
1169                         ber_socket_t active;
1170
1171                         if( slapd_gentle_shutdown == 1 ) {
1172                                 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1173                                 close_listeners( 1 );
1174                                 global_restrictops |= SLAP_RESTRICT_OP_WRITES;
1175                                 slapd_gentle_shutdown = 2;
1176                         }
1177
1178                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1179                         active = slap_daemon.sd_nactives;
1180                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1181                         if( active == 0 ) {
1182                                 slapd_shutdown = 2;
1183                                 break;
1184                         }
1185                 }
1186 #endif
1187
1188                 FD_ZERO( &writefds );
1189                 FD_ZERO( &readfds );
1190
1191                 zero.tv_sec = 0;
1192                 zero.tv_usec = 0;
1193
1194                 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1195
1196 #ifdef FD_SET_MANUAL_COPY
1197                 for( s = 0; s < nfds; s++ ) {
1198                         if(FD_ISSET( &slap_sd_readers, s )) {
1199                                 FD_SET( s, &readfds );
1200                         }
1201                         if(FD_ISSET( &slap_sd_writers, s )) {
1202                                 FD_SET( s, &writefds );
1203                         }
1204                 }
1205 #else
1206                 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
1207                 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
1208 #endif
1209                 assert(!FD_ISSET(wake_sds[0], &readfds));
1210                 FD_SET( wake_sds[0], &readfds );
1211
1212                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1213                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1214                                 continue;
1215                         if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds))
1216                             FD_SET( slap_listeners[l]->sl_sd, &readfds );
1217                 }
1218
1219 #ifndef HAVE_WINSOCK
1220                 nfds = slap_daemon.sd_nfds;
1221 #else
1222                 nfds = dtblsize;
1223 #endif
1224
1225                 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1226
1227                 at = ldap_pvt_thread_pool_backload(&connection_pool);
1228
1229 #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
1230                 tvp = NULL;
1231 #else
1232                 tvp = at ? &zero : NULL;
1233 #endif
1234
1235                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1236                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1237                                 continue;
1238
1239 #ifdef NEW_LOGGING
1240                         LDAP_LOG( CONNECTION, DETAIL1,
1241                                 "slapd_daemon_task: select: listen=%d "
1242                                 "active_threads=%d tvp=%s\n",
1243                                 slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
1244 #else
1245                         Debug( LDAP_DEBUG_CONNS,
1246                                 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1247                                         slap_listeners[l]->sl_sd, at,
1248                                         tvp == NULL ? "NULL" : "zero" );
1249 #endif
1250                 }
1251
1252                 switch(ns = select( nfds, &readfds,
1253 #ifdef HAVE_WINSOCK
1254                         /* don't pass empty fd_set */
1255                         ( writefds.fd_count > 0 ? &writefds : NULL ),
1256 #else
1257                         &writefds,
1258 #endif
1259                         NULL, tvp ))
1260                 {
1261                 case -1: {      /* failure - try again */
1262                                 int err = sock_errno();
1263
1264                                 if( err == EBADF
1265 #ifdef WSAENOTSOCK
1266                                         /* you'd think this would be EBADF */
1267                                         || err == WSAENOTSOCK
1268 #endif
1269                                 ) {
1270                                         if (++ebadf < SLAPD_EBADF_LIMIT)
1271                                                 continue;
1272                                 }
1273
1274                                 if( err != EINTR ) {
1275 #ifdef NEW_LOGGING
1276                                         LDAP_LOG( CONNECTION, INFO,
1277                                                 "slapd_daemon_task: select failed (%d): %s\n",
1278                                                 err, sock_errstr(err), 0 );
1279 #else
1280                                         Debug( LDAP_DEBUG_CONNS,
1281                                                 "daemon: select failed (%d): %s\n",
1282                                                 err, sock_errstr(err), 0 );
1283 #endif
1284                                         slapd_shutdown = 2;
1285                                 }
1286                         }
1287                         continue;
1288
1289                 case 0:         /* timeout - let threads run */
1290                         ebadf = 0;
1291 #ifdef NEW_LOGGING
1292                         LDAP_LOG( CONNECTION, DETAIL2,
1293                                    "slapd_daemon_task: select timeout - yielding\n", 0, 0, 0 );
1294 #else
1295                         Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1296                             0, 0, 0 );
1297 #endif
1298                         ldap_pvt_thread_yield();
1299                         continue;
1300
1301                 default:        /* something happened - deal with it */
1302                         if( slapd_shutdown ) continue;
1303
1304                         ebadf = 0;
1305 #ifdef NEW_LOGGING
1306                         LDAP_LOG( CONNECTION, DETAIL2,
1307                                    "slapd_daemon_task: activity on %d descriptors\n", ns, 0, 0 );
1308 #else
1309                         Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1310                                 ns, 0, 0 );
1311 #endif
1312                         /* FALL THRU */
1313                 }
1314
1315                 if( FD_ISSET( wake_sds[0], &readfds ) ) {
1316                         char c[BUFSIZ];
1317                         tcp_read( wake_sds[0], c, sizeof(c) );
1318 #ifdef NO_THREADS
1319                         waking = 0;
1320 #endif
1321                         continue;
1322                 }
1323
1324                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1325                         ber_socket_t s;
1326                         socklen_t len = sizeof(from);
1327                         long id;
1328                         slap_ssf_t ssf = 0;
1329                         char *authid = NULL;
1330
1331                         char    *dnsname = NULL;
1332                         char    *peeraddr;
1333 #ifdef LDAP_PF_LOCAL
1334                         char    peername[MAXPATHLEN + sizeof("PATH=")];
1335 #elif defined(LDAP_PF_INET6)
1336                         char    peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1337 #else
1338                         char    peername[sizeof("IP=255.255.255.255:65336")];
1339 #endif /* LDAP_PF_LOCAL */
1340
1341                         peername[0] = '\0';
1342
1343                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1344                                 continue;
1345
1346                         if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
1347                                 continue;
1348
1349 #ifdef LDAP_CONNECTIONLESS
1350                         if ( slap_listeners[l]->sl_is_udp ) {
1351                                 /* The first time we receive a query, we set this
1352                                  * up as a "connection". It remains open for the life
1353                                  * of the slapd.
1354                                  */
1355                                 if ( slap_listeners[l]->sl_is_udp < 2 ) {
1356                                     id = connection_init(
1357                                         slap_listeners[l]->sl_sd,
1358                                         slap_listeners[l]->sl_url, "", "",
1359                                         slap_listeners[l]->sl_name,
1360                                         2, ssf, authid );
1361                                     slap_listeners[l]->sl_is_udp++;
1362                                 }
1363                                 continue;
1364                         }
1365 #endif
1366
1367                         s = accept( slap_listeners[l]->sl_sd,
1368                                 (struct sockaddr *) &from, &len );
1369                         if ( s == AC_SOCKET_INVALID ) {
1370                                 int err = sock_errno();
1371
1372 #ifdef EMFILE
1373                                 if( err == EMFILE ) {
1374                                         emfile++;
1375                                 } else
1376 #endif
1377 #ifdef ENFILE
1378                                 if( err == ENFILE ) {
1379                                         emfile++;
1380                                 } else
1381 #endif
1382                                 {
1383                                         emfile=0;
1384                                 }
1385
1386                                 if( emfile < 3 ) {
1387 #ifdef NEW_LOGGING
1388                                         LDAP_LOG( CONNECTION, ERR,
1389                                                 "slapd_daemon_task: accept(%ld) failed errno=%d (%s)\n",
1390                                                 (long)slap_listeners[l]->sl_sd,
1391                                                 err, sock_errstr(err) );
1392 #else
1393                                         Debug( LDAP_DEBUG_ANY,
1394                                             "daemon: accept(%ld) failed errno=%d (%s)\n",
1395                                             (long) slap_listeners[l]->sl_sd, err,
1396                                             sock_errstr(err) );
1397 #endif
1398                                 } else {
1399                                         /* prevent busy loop */
1400 #  ifdef HAVE_USLEEP
1401                                         if( emfile % 4 == 3 ) usleep( 250 );
1402 #  else
1403                                         if( emfile % 8 == 7 ) sleep( 1 );
1404 #  endif
1405                                 }
1406
1407                                 ldap_pvt_thread_yield();
1408                                 continue;
1409                         }
1410                         emfile = 0;
1411
1412 #ifndef HAVE_WINSOCK
1413                         /* make sure descriptor number isn't too great */
1414                         if ( s >= dtblsize ) {
1415 #ifdef NEW_LOGGING
1416                                 LDAP_LOG( CONNECTION, ERR,
1417                                    "slapd_daemon_task: %ld beyond descriptor table size %ld\n",
1418                                    (long)s, (long)dtblsize, 0 );
1419 #else
1420                                 Debug( LDAP_DEBUG_ANY,
1421                                         "daemon: %ld beyond descriptor table size %ld\n",
1422                                         (long) s, (long) dtblsize, 0 );
1423 #endif
1424
1425                                 slapd_close(s);
1426                                 ldap_pvt_thread_yield();
1427                                 continue;
1428                         }
1429 #endif
1430
1431 #ifdef LDAP_DEBUG
1432                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1433
1434                         /* newly accepted stream should not be in any of the FD SETS */
1435                         assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
1436                         assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
1437                         assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
1438
1439                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1440 #endif
1441
1442 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1443 #ifdef LDAP_PF_LOCAL
1444                         /* for IPv4 and IPv6 sockets only */
1445                         if ( from.sa_addr.sa_family != AF_LOCAL )
1446 #endif /* LDAP_PF_LOCAL */
1447                         {
1448                                 int rc;
1449                                 int tmp;
1450 #ifdef SO_KEEPALIVE
1451                                 /* enable keep alives */
1452                                 tmp = 1;
1453                                 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1454                                         (char *) &tmp, sizeof(tmp) );
1455                                 if ( rc == AC_SOCKET_ERROR ) {
1456                                         int err = sock_errno();
1457 #ifdef NEW_LOGGING
1458                                         LDAP_LOG( CONNECTION, ERR,
1459                                                 "slapd_daemon_task: setsockopt( %ld, SO_KEEPALIVE)"
1460                                            " failed errno=%d (%s)\n",
1461                                                 (long)s, err, sock_errstr(err) );
1462 #else
1463                                         Debug( LDAP_DEBUG_ANY,
1464                                                 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1465                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1466 #endif
1467                                 }
1468 #endif
1469 #ifdef TCP_NODELAY
1470                                 /* enable no delay */
1471                                 tmp = 1;
1472                                 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1473                                         (char *)&tmp, sizeof(tmp) );
1474                                 if ( rc == AC_SOCKET_ERROR ) {
1475                                         int err = sock_errno();
1476 #ifdef NEW_LOGGING
1477                                         LDAP_LOG( CONNECTION, ERR,
1478                                                 "slapd_daemon_task: setsockopt( %ld, "
1479                                                 "TCP_NODELAY) failed errno=%d (%s)\n",
1480                                                 (long)s, err, sock_errstr(err) );
1481 #else
1482                                         Debug( LDAP_DEBUG_ANY,
1483                                                 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1484                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1485 #endif
1486                                 }
1487 #endif
1488                         }
1489 #endif
1490
1491 #ifdef NEW_LOGGING
1492                         LDAP_LOG( CONNECTION, DETAIL1,
1493                                 "slapd_daemon_task: new connection on %ld\n", (long)s, 0, 0 );
1494 #else
1495                         Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1496                                 (long) s, 0, 0 );
1497 #endif
1498                         switch ( from.sa_addr.sa_family ) {
1499 #  ifdef LDAP_PF_LOCAL
1500                         case AF_LOCAL:
1501                                 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1502                                 ssf = LDAP_PVT_SASL_LOCAL_SSF;
1503                                 dnsname = "local";
1504                                 break;
1505 #endif /* LDAP_PF_LOCAL */
1506
1507 #  ifdef LDAP_PF_INET6
1508                         case AF_INET6:
1509                         if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1510                                 peeraddr = inet_ntoa( *((struct in_addr *)
1511                                                         &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1512                                 sprintf( peername, "IP=%s:%d",
1513                                          peeraddr != NULL ? peeraddr : "unknown",
1514                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1515                         } else {
1516                                 char addr[INET6_ADDRSTRLEN];
1517
1518                                 peeraddr = (char *) inet_ntop( AF_INET6,
1519                                                       &from.sa_in6_addr.sin6_addr,
1520                                                       addr, sizeof addr );
1521                                 sprintf( peername, "IP=%s %d",
1522                                          peeraddr != NULL ? peeraddr : "unknown",
1523                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1524                         }
1525                         break;
1526 #  endif /* LDAP_PF_INET6 */
1527
1528                         case AF_INET:
1529                         peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1530                         sprintf( peername, "IP=%s:%d",
1531                                 peeraddr != NULL ? peeraddr : "unknown",
1532                                 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1533                                 break;
1534
1535                         default:
1536                                 slapd_close(s);
1537                                 continue;
1538                         }
1539
1540                         if ( ( from.sa_addr.sa_family == AF_INET )
1541 #ifdef LDAP_PF_INET6
1542                                 || ( from.sa_addr.sa_family == AF_INET6 )
1543 #endif
1544                         ) {
1545 #ifdef SLAPD_RLOOKUPS
1546                                 if ( use_reverse_lookup ) {
1547 #  ifdef LDAP_PF_INET6
1548                                         if ( from.sa_addr.sa_family == AF_INET6 )
1549                                                 hp = gethostbyaddr(
1550                                                         (char *)&(from.sa_in6_addr.sin6_addr),
1551                                                         sizeof(from.sa_in6_addr.sin6_addr),
1552                                                         AF_INET6 );
1553                                         else
1554 #  endif /* LDAP_PF_INET6 */
1555                                         hp = gethostbyaddr(
1556                                                 (char *) &(from.sa_in_addr.sin_addr),
1557                                                 sizeof(from.sa_in_addr.sin_addr),
1558                                                 AF_INET );
1559                                         dnsname = hp ? ldap_pvt_str2lower( hp->h_name ) : NULL;
1560                                 }
1561 #else
1562                                 dnsname = NULL;
1563 #endif /* SLAPD_RLOOKUPS */
1564
1565 #ifdef HAVE_TCPD
1566                                 if ( !hosts_ctl("slapd",
1567                                                 dnsname != NULL ? dnsname : STRING_UNKNOWN,
1568                                                 peeraddr != NULL ? peeraddr : STRING_UNKNOWN,
1569                                                 STRING_UNKNOWN ))
1570                                 {
1571                                         /* DENY ACCESS */
1572                                         Statslog( LDAP_DEBUG_ANY,
1573                                                 "fd=%ld host access from %s (%s) denied.\n",
1574                                                 (long) s,
1575                                                 dnsname != NULL ? dnsname : "unknown",
1576                                                 peeraddr != NULL ? peeraddr : "unknown",
1577                                                 0, 0 );
1578                                         slapd_close(s);
1579                                         continue;
1580                                 }
1581 #endif /* HAVE_TCPD */
1582                         }
1583
1584                         id = connection_init(s,
1585                                 slap_listeners[l]->sl_url,
1586                                 dnsname != NULL ? dnsname : "unknown",
1587                                 peername,
1588                                 slap_listeners[l]->sl_name,
1589 #ifdef HAVE_TLS
1590                                 slap_listeners[l]->sl_is_tls,
1591 #else
1592                                 0,
1593 #endif
1594                                 ssf,
1595                                 authid );
1596
1597                         if( authid ) ch_free(authid);
1598
1599                         if( id < 0 ) {
1600 #ifdef NEW_LOGGING
1601                                 LDAP_LOG( CONNECTION, INFO,
1602                                         "slapd_daemon_task: connection_init(%ld, %s, %s) failed.\n",
1603                                         (long)s, peername, slap_listeners[l]->sl_name );
1604 #else
1605                                 Debug( LDAP_DEBUG_ANY,
1606                                         "daemon: connection_init(%ld, %s, %s) failed.\n",
1607                                         (long) s,
1608                                         peername,
1609                                         slap_listeners[l]->sl_name );
1610 #endif
1611                                 slapd_close(s);
1612                                 continue;
1613                         }
1614
1615                         Statslog( LDAP_DEBUG_STATS,
1616                                 "daemon: conn=%ld fd=%ld connection from %s (%s) accepted.\n",
1617                                 id, (long) s,
1618                                 peername,
1619                                 slap_listeners[l]->sl_name,
1620                                 0 );
1621
1622                         slapd_add( s );
1623                         continue;
1624                 }
1625
1626 #ifdef LDAP_DEBUG
1627 #ifdef NEW_LOGGING
1628                 LDAP_LOG( CONNECTION, DETAIL2,
1629                            "slapd_daemon_task: activity on ", 0, 0, 0 );
1630 #else
1631                 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1632 #endif
1633 #ifdef HAVE_WINSOCK
1634                 for ( i = 0; i < readfds.fd_count; i++ ) {
1635 #ifdef NEW_LOGGING
1636                         LDAP_LOG( CONNECTION, DETAIL2,
1637                                 " %d%s", readfds.fd_array[i], "r", 0, 0 );
1638 #else
1639                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1640                                 readfds.fd_array[i], "r", 0 );
1641 #endif
1642                 }
1643                 for ( i = 0; i < writefds.fd_count; i++ ) {
1644 #ifdef NEW_LOGGING
1645                         LDAP_LOG( CONNECTION, DETAIL2,
1646                                 " %d%s", writefds.fd_array[i], "w" , 0 );
1647 #else
1648                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1649                                 writefds.fd_array[i], "w", 0 );
1650 #endif
1651                 }
1652
1653 #else
1654                 for ( i = 0; i < nfds; i++ ) {
1655                         int     r, w;
1656                         int     is_listener = 0;
1657
1658                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1659                                 if ( i == slap_listeners[l]->sl_sd ) {
1660 #ifdef LDAP_CONNECTIONLESS
1661                                 /* The listener is the data port. Don't
1662                                  * skip it.
1663                                  */
1664                                         if (slap_listeners[l]->sl_is_udp) continue;
1665 #endif
1666                                         is_listener = 1;
1667                                         break;
1668                                 }
1669                         }
1670                         if ( is_listener ) {
1671                                 continue;
1672                         }
1673                         r = FD_ISSET( i, &readfds );
1674                         w = FD_ISSET( i, &writefds );
1675                         if ( r || w ) {
1676 #ifdef NEW_LOGGING
1677                                 LDAP_LOG( CONNECTION, DETAIL2,
1678                                         " %d%s%s", i, r ? "r" : "", w ? "w" : "" );
1679 #else
1680                                 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1681                                     r ? "r" : "", w ? "w" : "" );
1682 #endif
1683                         }
1684                 }
1685 #endif
1686 #ifdef NEW_LOGGING
1687                 LDAP_LOG( CONNECTION, DETAIL2, "\n", 0, 0, 0 );
1688 #else
1689                 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1690 #endif
1691
1692 #endif
1693
1694                 /* loop through the writers */
1695 #ifdef HAVE_WINSOCK
1696                 for ( i = 0; i < writefds.fd_count; i++ )
1697 #else
1698                 for ( i = 0; i < nfds; i++ )
1699 #endif
1700                 {
1701                         ber_socket_t wd;
1702                         int is_listener = 0;
1703 #ifdef HAVE_WINSOCK
1704                         wd = writefds.fd_array[i];
1705 #else
1706                         if( ! FD_ISSET( i, &writefds ) ) {
1707                                 continue;
1708                         }
1709                         wd = i;
1710 #endif
1711
1712                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1713                                 if ( i == slap_listeners[l]->sl_sd ) {
1714 #ifdef LDAP_CONNECTIONLESS
1715                                         if (slap_listeners[l]->sl_is_udp) continue;
1716 #endif
1717                                         is_listener = 1;
1718                                         break;
1719                                 }
1720                         }
1721                         if ( is_listener ) {
1722                                 continue;
1723                         }
1724 #ifdef NEW_LOGGING
1725                         LDAP_LOG( CONNECTION, DETAIL2,
1726                                 "slapd_daemon_task: write active on %d\n", wd, 0, 0 );
1727 #else
1728                         Debug( LDAP_DEBUG_CONNS,
1729                                 "daemon: write active on %d\n",
1730                                 wd, 0, 0 );
1731 #endif
1732                         /*
1733                          * NOTE: it is possible that the connection was closed
1734                          * and that the stream is now inactive.
1735                          * connection_write() must valid the stream is still
1736                          * active.
1737                          */
1738
1739                         if ( connection_write( wd ) < 0 ) {
1740                                 FD_CLR( (unsigned) wd, &readfds );
1741                                 slapd_close( wd );
1742                         }
1743                 }
1744
1745 #ifdef HAVE_WINSOCK
1746                 for ( i = 0; i < readfds.fd_count; i++ )
1747 #else
1748                 for ( i = 0; i < nfds; i++ )
1749 #endif
1750                 {
1751                         ber_socket_t rd;
1752                         int is_listener = 0;
1753
1754 #ifdef HAVE_WINSOCK
1755                         rd = readfds.fd_array[i];
1756 #else
1757                         if( ! FD_ISSET( i, &readfds ) ) {
1758                                 continue;
1759                         }
1760                         rd = i;
1761 #endif
1762
1763                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1764                                 if ( rd == slap_listeners[l]->sl_sd ) {
1765 #ifdef LDAP_CONNECTIONLESS
1766                                         if (slap_listeners[l]->sl_is_udp) continue;
1767 #endif
1768                                         is_listener = 1;
1769                                         break;
1770                                 }
1771                         }
1772                         if ( is_listener ) {
1773                                 continue;
1774                         }
1775
1776 #ifdef NEW_LOGGING
1777                         LDAP_LOG( CONNECTION, DETAIL2,
1778                                 "slapd_daemon_task: read activity on %d\n", rd, 0, 0 );
1779 #else
1780                         Debug ( LDAP_DEBUG_CONNS,
1781                                 "daemon: read activity on %d\n", rd, 0, 0 );
1782 #endif
1783                         /*
1784                          * NOTE: it is possible that the connection was closed
1785                          * and that the stream is now inactive.
1786                          * connection_read() must valid the stream is still
1787                          * active.
1788                          */
1789
1790                         if ( connection_read( rd ) < 0 ) {
1791                                 slapd_close( rd );
1792                         }
1793                 }
1794                 ldap_pvt_thread_yield();
1795         }
1796
1797         if( slapd_shutdown == 1 ) {
1798 #ifdef NEW_LOGGING
1799                 LDAP_LOG( CONNECTION, CRIT,
1800                    "slapd_daemon_task: shutdown requested and initiated.\n", 0, 0, 0 );
1801 #else
1802                 Debug( LDAP_DEBUG_TRACE,
1803                         "daemon: shutdown requested and initiated.\n",
1804                         0, 0, 0 );
1805 #endif
1806
1807         } else if ( slapd_shutdown == 2 ) {
1808 #ifdef HAVE_NT_SERVICE_MANAGER
1809 #ifdef NEW_LOGGING
1810                         LDAP_LOG( CONNECTION, CRIT,
1811                            "slapd_daemon_task: shutdown initiated by Service Manager.\n",
1812                            0, 0, 0);
1813 #else
1814                         Debug( LDAP_DEBUG_TRACE,
1815                                "daemon: shutdown initiated by Service Manager.\n",
1816                                0, 0, 0);
1817 #endif
1818 #else /* !HAVE_NT_SERVICE_MANAGER */
1819 #ifdef NEW_LOGGING
1820                         LDAP_LOG( CONNECTION, CRIT,
1821                            "slapd_daemon_task: abnormal condition, "
1822                            "shutdown initiated.\n", 0, 0, 0 );
1823 #else
1824                         Debug( LDAP_DEBUG_TRACE,
1825                                "daemon: abnormal condition, shutdown initiated.\n",
1826                                0, 0, 0 );
1827 #endif
1828 #endif /* !HAVE_NT_SERVICE_MANAGER */
1829         } else {
1830 #ifdef NEW_LOGGING
1831                 LDAP_LOG( CONNECTION, CRIT,
1832                    "slapd_daemon_task: no active streams, shutdown initiated.\n",
1833                    0, 0, 0 );
1834 #else
1835                 Debug( LDAP_DEBUG_TRACE,
1836                        "daemon: no active streams, shutdown initiated.\n",
1837                        0, 0, 0 );
1838 #endif
1839         }
1840
1841         if( slapd_gentle_shutdown != 2 )
1842                 close_listeners ( 0 );
1843         free ( slap_listeners );
1844         slap_listeners = NULL;
1845
1846 #ifdef NEW_LOGGING
1847         LDAP_LOG( CONNECTION, CRIT,
1848                 "slapd_daemon_task: shutdown waiting for %d threads to terminate.\n",
1849                 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1850 #else
1851         Debug( LDAP_DEBUG_ANY,
1852             "slapd shutdown: waiting for %d threads to terminate\n",
1853             ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1854 #endif
1855         ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1856
1857         return NULL;
1858 }
1859
1860
1861 int slapd_daemon( void )
1862 {
1863         int rc;
1864
1865         connections_init();
1866
1867 #define SLAPD_LISTENER_THREAD 1
1868 #if defined( SLAPD_LISTENER_THREAD )
1869         {
1870                 ldap_pvt_thread_t       listener_tid;
1871
1872                 /* listener as a separate THREAD */
1873                 rc = ldap_pvt_thread_create( &listener_tid,
1874                         0, slapd_daemon_task, NULL );
1875
1876                 if ( rc != 0 ) {
1877 #ifdef NEW_LOGGING
1878                         LDAP_LOG( CONNECTION, ERR,
1879                                 "slapd_daemon: listener ldap_pvt_thread_create failed (%d).\n",
1880                                 rc, 0, 0 );
1881 #else
1882                         Debug( LDAP_DEBUG_ANY,
1883                         "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
1884 #endif
1885                         return rc;
1886                 }
1887
1888                 /* wait for the listener thread to complete */
1889                 ldap_pvt_thread_join( listener_tid, (void *) NULL );
1890         }
1891 #else
1892         /* experimental code */
1893         slapd_daemon_task( NULL );
1894 #endif
1895
1896         return 0;
1897
1898 }
1899
1900 int sockinit(void)
1901 {
1902 #if defined( HAVE_WINSOCK2 )
1903     WORD wVersionRequested;
1904         WSADATA wsaData;
1905         int err;
1906
1907         wVersionRequested = MAKEWORD( 2, 0 );
1908
1909         err = WSAStartup( wVersionRequested, &wsaData );
1910         if ( err != 0 ) {
1911                 /* Tell the user that we couldn't find a usable */
1912                 /* WinSock DLL.                                  */
1913                 return -1;
1914         }
1915
1916         /* Confirm that the WinSock DLL supports 2.0.*/
1917         /* Note that if the DLL supports versions greater    */
1918         /* than 2.0 in addition to 2.0, it will still return */
1919         /* 2.0 in wVersion since that is the version we      */
1920         /* requested.                                        */
1921
1922         if ( LOBYTE( wsaData.wVersion ) != 2 ||
1923                 HIBYTE( wsaData.wVersion ) != 0 )
1924         {
1925             /* Tell the user that we couldn't find a usable */
1926             /* WinSock DLL.                                  */
1927             WSACleanup();
1928             return -1;
1929         }
1930
1931         /* The WinSock DLL is acceptable. Proceed. */
1932 #elif defined( HAVE_WINSOCK )
1933         WSADATA wsaData;
1934         if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
1935             return -1;
1936         }
1937 #endif
1938         return 0;
1939 }
1940
1941 int sockdestroy(void)
1942 {
1943 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
1944         WSACleanup();
1945 #endif
1946         return 0;
1947 }
1948
1949 RETSIGTYPE
1950 slap_sig_shutdown( int sig )
1951 {
1952 #ifdef NEW_LOGGING
1953         LDAP_LOG( CONNECTION, CRIT,
1954                 "slap_sig_shutdown: signal %d\n", sig, 0, 0 );
1955 #else
1956         Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
1957 #endif
1958
1959         /*
1960          * If the NT Service Manager is controlling the server, we don't
1961          * want SIGBREAK to kill the server. For some strange reason,
1962          * SIGBREAK is generated when a user logs out.
1963          */
1964
1965 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
1966         if (is_NT_Service && sig == SIGBREAK)
1967 #ifdef NEW_LOGGING
1968             LDAP_LOG( CONNECTION, CRIT,
1969                     "slap_sig_shutdown: SIGBREAK ignored.\n", 0, 0, 0 );
1970 #else
1971             Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n",
1972                   0, 0, 0);
1973 #endif
1974         else
1975 #endif
1976 #ifdef SIGHUP
1977         if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
1978                 slapd_gentle_shutdown = 1;
1979         else
1980 #endif
1981         slapd_shutdown = 1;
1982
1983         WAKE_LISTENER(1);
1984
1985         /* reinstall self */
1986         (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
1987 }
1988
1989 RETSIGTYPE
1990 slap_sig_wake( int sig )
1991 {
1992         WAKE_LISTENER(1);
1993
1994         /* reinstall self */
1995         (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
1996 }
1997
1998
1999 void slapd_add_internal(ber_socket_t s) {
2000         slapd_add(s);
2001 }
2002
2003 Listener ** slapd_get_listeners(void) {
2004         return slap_listeners;
2005 }