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 #if defined(NO_THREADS) || defined(HAVE_GNU_PTH)
  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 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
 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
 338                                 + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
 339                         mode_t  p = 0;
 340                         int     j;
 341
 342                         switch (strlen(value)) {
 343                         case 4:
 344                                 /* skip leading '0' */
 345                                 if ( value[ 0 ] != '0' ) {
 346                                         return LDAP_OTHER;
 347                                 }
 348                                 value++;
 349
 350                         case 3:
 351                                 for ( j = 0; j < 3; j++) {
 352                                         int     v;
 353
 354                                         v = value[ j ] - '0';
 355
 356                                         if ( v < 0 || v > 7 ) {
 357                                                 return LDAP_OTHER;
 358                                         }
 359
 360                                         p |= v << 3*(2-j);
 361                                 }
 362                                 break;
 363
 364                         case 10:
 365                                 for ( j = 1; j < 10; j++ ) {
 366                                         static mode_t   m[] = { 0,
 367                                                 S_IRUSR, S_IWUSR, S_IXUSR,
 368                                                 S_IRGRP, S_IWGRP, S_IXGRP,
 369                                                 S_IROTH, S_IWOTH, S_IXOTH
 370                                         };
 371                                         static char     c[] = "-rwxrwxrwx";
 372
 373                                         if ( value[ j ] == c[ j ] ) {
 374                                                 p |= m[ j ];
 375
 376                                         } else if ( value[ j ] != '-' ) {
 377                                                 return LDAP_OTHER;
 378                                         }
 379                                 }
 380                                 break;
 381
 382                         default:
 383                                 return LDAP_OTHER;
 384                         }
 385
 386                         *crit = c;
 387                         *perms = p;
 388
 389                         return LDAP_SUCCESS;
 390                 }
 391         }
 392
 393         return LDAP_OTHER;
 394 }
 395 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
 396
 397 /* port = 0 indicates AF_LOCAL */
 398 static int slap_get_listener_addresses(
 399         const char *host,
 400         unsigned short port,
 401         struct sockaddr ***sal)
 402 {
 403         struct sockaddr **sap;
 404
 405 #ifdef LDAP_PF_LOCAL
 406         if ( port == 0 ) {
 407                 *sal = ch_malloc(2 * sizeof(void *));
 408                 if (*sal == NULL) {
 409                         return -1;
 410                 }
 411
 412                 sap = *sal;
 413                 *sap = ch_malloc(sizeof(struct sockaddr_un));
 414                 if (*sap == NULL)
 415                         goto errexit;
 416                 sap[1] = NULL;
 417
 418                 if ( strlen(host) >
 419                      (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
 420 #ifdef NEW_LOGGING
 421                         LDAP_LOG( CONNECTION, INFO,
 422                                 "slap_get_listener_addresses: domain socket path (%s) "
 423                                 "too long in URL\n", host, 0, 0 );
 424 #else
 425                         Debug( LDAP_DEBUG_ANY,
 426                                "daemon: domain socket path (%s) too long in URL",
 427                                host, 0, 0);
 428 #endif
 429                         goto errexit;
 430                 }
 431
 432                 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
 433                 (*sap)->sa_family = AF_LOCAL;
 434                 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
 435         } else
 436 #endif
 437         {
 438 #ifdef HAVE_GETADDRINFO
 439                 struct addrinfo hints, *res, *sai;
 440                 int n, err;
 441                 char serv[7];
 442
 443                 memset( &hints, '\0', sizeof(hints) );
 444                 hints.ai_flags = AI_PASSIVE;
 445                 hints.ai_socktype = SOCK_STREAM;
 446                 hints.ai_family = slap_inet4or6;
 447                 snprintf(serv, sizeof serv, "%d", port);
 448
 449                 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
 450 #ifdef NEW_LOGGING
 451                         LDAP_LOG( CONNECTION, INFO,
 452                                    "slap_get_listener_addresses: getaddrinfo failed: %s\n",
 453                                    AC_GAI_STRERROR(err), 0, 0 );
 454 #else
 455                         Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
 456                                 AC_GAI_STRERROR(err), 0, 0);
 457 #endif
 458                         return -1;
 459                 }
 460
 461                 sai = res;
 462                 for (n=2; (sai = sai->ai_next) != NULL; n++) {
 463                         /* EMPTY */ ;
 464                 }
 465                 *sal = ch_calloc(n, sizeof(void *));
 466                 if (*sal == NULL) {
 467                         return -1;
 468                 }
 469
 470                 sap = *sal;
 471                 *sap = NULL;
 472
 473                 for ( sai=res; sai; sai=sai->ai_next ) {
 474                         if( sai->ai_addr == NULL ) {
 475 #ifdef NEW_LOGGING
 476                                 LDAP_LOG( CONNECTION, INFO,
 477                                         "slap_get_listener_addresses: "
 478                                         "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
 479 #else
 480                                 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
 481                                         "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
 482 #endif
 483                                 freeaddrinfo(res);
 484                                 goto errexit;
 485                         }
 486
 487                         switch (sai->ai_family) {
 488 #  ifdef LDAP_PF_INET6
 489                         case AF_INET6:
 490                                 *sap = ch_malloc(sizeof(struct sockaddr_in6));
 491                                 if (*sap == NULL) {
 492                                         freeaddrinfo(res);
 493                                         goto errexit;
 494                                 }
 495                                 *(struct sockaddr_in6 *)*sap =
 496                                         *((struct sockaddr_in6 *)sai->ai_addr);
 497                                 break;
 498 #  endif
 499                         case AF_INET:
 500                                 *sap = ch_malloc(sizeof(struct sockaddr_in));
 501                                 if (*sap == NULL) {
 502                                         freeaddrinfo(res);
 503                                         goto errexit;
 504                                 }
 505                                 *(struct sockaddr_in *)*sap =
 506                                         *((struct sockaddr_in *)sai->ai_addr);
 507                                 break;
 508                         default:
 509                                 *sap = NULL;
 510                                 break;
 511                         }
 512
 513                         if (*sap != NULL) {
 514                                 (*sap)->sa_family = sai->ai_family;
 515                                 sap++;
 516                                 *sap = NULL;
 517                         }
 518                 }
 519
 520                 freeaddrinfo(res);
 521 #else
 522                 int i, n = 1;
 523                 struct in_addr in;
 524                 struct hostent *he = NULL;
 525
 526                 if ( host == NULL ) {
 527                         in.s_addr = htonl(INADDR_ANY);
 528
 529                 } else if ( !inet_aton( host, &in ) ) {
 530                         he = gethostbyname( host );
 531                         if( he == NULL ) {
 532 #ifdef NEW_LOGGING
 533                                 LDAP_LOG( CONNECTION, INFO,
 534                                         "slap_get_listener_addresses: invalid host %s\n", host, 0, 0 );
 535 #else
 536                                 Debug( LDAP_DEBUG_ANY,
 537                                        "daemon: invalid host %s", host, 0, 0);
 538 #endif
 539                                 return -1;
 540                         }
 541                         for (n = 0; he->h_addr_list[n]; n++) ;
 542                 }
 543
 544                 *sal = ch_malloc((n+1) * sizeof(void *));
 545                 if (*sal == NULL) {
 546                         return -1;
 547                 }
 548
 549                 sap = *sal;
 550                 for ( i = 0; i<n; i++ ) {
 551                         sap[i] = ch_malloc(sizeof(struct sockaddr_in));
 552                         if (*sap == NULL) {
 553                                 goto errexit;
 554                         }
 555                         (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
 556                         sap[i]->sa_family = AF_INET;
 557                         ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
 558                         if (he) {
 559                                 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
 560                         } else {
 561                                 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
 562                         }
 563                 }
 564                 sap[i] = NULL;
 565 #endif
 566         }
 567
 568         return 0;
 569
 570 errexit:
 571         slap_free_listener_addresses(*sal);
 572         return -1;
 573 }
 574
 575 static int slap_open_listener(
 576         const char* url,
 577         int *listeners,
 578         int *cur
 579         )
 580 {
 581         int     num, tmp, rc;
 582         Listener l;
 583         Listener *li;
 584         LDAPURLDesc *lud;
 585         unsigned short port;
 586         int err, addrlen = 0;
 587         struct sockaddr **sal, **psal;
 588         int socktype = SOCK_STREAM;     /* default to COTS */
 589
 590 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
 591         /*
 592          * use safe defaults
 593          */
 594         int     crit = 1;
 595 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
 596
 597         rc = ldap_url_parse( url, &lud );
 598
 599         if( rc != LDAP_URL_SUCCESS ) {
 600 #ifdef NEW_LOGGING
 601                 LDAP_LOG( CONNECTION, ERR,
 602                         "slap_open_listener: listen URL \"%s\" parse error %d\n",
 603                         url, rc , 0 );
 604 #else
 605                 Debug( LDAP_DEBUG_ANY,
 606                         "daemon: listen URL \"%s\" parse error=%d\n",
 607                         url, rc, 0 );
 608 #endif
 609                 return rc;
 610         }
 611
 612         l.sl_url.bv_val = NULL;
 613
 614 #ifndef HAVE_TLS
 615         if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
 616 #ifdef NEW_LOGGING
 617                 LDAP_LOG( CONNECTION, INFO,
 618                            "slap_open_listener: TLS is not supported (%s)\n", url, 0, 0 );
 619 #else
 620                 Debug( LDAP_DEBUG_ANY,
 621                         "daemon: TLS not supported (%s)\n",
 622                         url, 0, 0 );
 623 #endif
 624                 ldap_free_urldesc( lud );
 625                 return -1;
 626         }
 627
 628         if(! lud->lud_port ) {
 629                 lud->lud_port = LDAP_PORT;
 630         }
 631
 632 #else
 633         l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
 634
 635         if(! lud->lud_port ) {
 636                 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
 637         }
 638 #endif
 639
 640         port = (unsigned short) lud->lud_port;
 641
 642         tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
 643         if ( tmp == LDAP_PROTO_IPC ) {
 644 #ifdef LDAP_PF_LOCAL
 645                 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
 646                         err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
 647                 } else {
 648                         err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
 649                 }
 650 #else
 651
 652 #ifdef NEW_LOGGING
 653                 LDAP_LOG( CONNECTION, INFO,
 654                         "slap_open_listener: URL scheme is not supported: %s\n", url, 0, 0 );
 655 #else
 656                 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
 657                         url, 0, 0);
 658 #endif
 659                 ldap_free_urldesc( lud );
 660                 return -1;
 661 #endif
 662         } else {
 663 #ifdef LDAP_CONNECTIONLESS
 664                 l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
 665 #endif
 666                 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
 667                         || strcmp(lud->lud_host, "*") == 0 )
 668                 {
 669                         err = slap_get_listener_addresses(NULL, port, &sal);
 670                 } else {
 671                         err = slap_get_listener_addresses(lud->lud_host, port, &sal);
 672                 }
 673         }
 674
 675 #ifdef LDAP_PF_LOCAL
 676 #ifdef SLAP_X_LISTENER_MOD
 677         if ( lud->lud_exts ) {
 678                 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
 679         } else
 680 #endif /* SLAP_X_LISTENER_MOD */
 681         {
 682                 l.sl_perms = S_IRWXU;
 683         }
 684 #endif /* LDAP_PF_LOCAL */
 685
 686         ldap_free_urldesc( lud );
 687         if ( err ) {
 688                 return -1;
 689         }
 690
 691         /* If we got more than one address returned, we need to make space
 692          * for it in the slap_listeners array.
 693          */
 694         for ( num=0; sal[num]; num++ );
 695         if ( num > 1 ) {
 696                 *listeners += num-1;
 697                 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
 698         }
 699
 700         psal = sal;
 701         while ( *sal != NULL ) {
 702                 switch( (*sal)->sa_family ) {
 703                 case AF_INET:
 704 #ifdef LDAP_PF_INET6
 705                 case AF_INET6:
 706 #endif
 707 #ifdef LDAP_PF_LOCAL
 708                 case AF_LOCAL:
 709 #endif
 710                         break;
 711                 default:
 712                         sal++;
 713                         continue;
 714                 }
 715 #ifdef LDAP_CONNECTIONLESS
 716                 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
 717 #endif
 718                 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
 719                 if ( l.sl_sd == AC_SOCKET_INVALID ) {
 720                         int err = sock_errno();
 721 #ifdef NEW_LOGGING
 722                         LDAP_LOG( CONNECTION, ERR,
 723                                 "slap_open_listener: socket() failed errno=%d (%s)\n",
 724                                 err, sock_errstr(err), 0 );
 725 #else
 726                         Debug( LDAP_DEBUG_ANY,
 727                                 "daemon: socket() failed errno=%d (%s)\n", err,
 728                                 sock_errstr(err), 0 );
 729 #endif
 730                         sal++;
 731                         continue;
 732                 }
 733 #ifndef HAVE_WINSOCK
 734                 if ( l.sl_sd >= dtblsize ) {
 735 #ifdef NEW_LOGGING
 736                         LDAP_LOG( CONNECTION, ERR,
 737                                 "slap_open_listener: listener descriptor %ld is too "
 738                                 "great %ld\n", (long)l.sl_sd, (long)dtblsize, 0 );
 739 #else
 740                         Debug( LDAP_DEBUG_ANY,
 741                                "daemon: listener descriptor %ld is too great %ld\n",
 742                                (long) l.sl_sd, (long) dtblsize, 0 );
 743 #endif
 744                         tcp_close( l.sl_sd );
 745                         sal++;
 746                         continue;
 747                 }
 748 #endif
 749 #ifdef LDAP_PF_LOCAL
 750                 if ( (*sal)->sa_family == AF_LOCAL ) {
 751                         unlink ( ((struct sockaddr_un *)*sal)->sun_path );
 752                 } else
 753 #endif
 754                 {
 755 #ifdef SO_REUSEADDR
 756                         /* enable address reuse */
 757                         tmp = 1;
 758                         rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
 759                                          (char *) &tmp, sizeof(tmp) );
 760                         if ( rc == AC_SOCKET_ERROR ) {
 761                                 int err = sock_errno();
 762 #ifdef NEW_LOGGING
 763                                 LDAP_LOG( CONNECTION, INFO,
 764                                         "slap_open_listener: setsockopt( %ld, SO_REUSEADDR ) "
 765                                         "failed errno %d (%s)\n", (long)l.sl_sd, err,
 766                                         sock_errstr(err) );
 767 #else
 768                                 Debug( LDAP_DEBUG_ANY,
 769                                        "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
 770                                        (long) l.sl_sd, err, sock_errstr(err) );
 771 #endif
 772                         }
 773 #endif
 774                 }
 775
 776                 switch( (*sal)->sa_family ) {
 777                 case AF_INET:
 778                         addrlen = sizeof(struct sockaddr_in);
 779                         break;
 780 #ifdef LDAP_PF_INET6
 781                 case AF_INET6:
 782 #ifdef IPV6_V6ONLY
 783                         /* Try to use IPv6 sockets for IPv6 only */
 784                         tmp = 1;
 785                         rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
 786                                          (char *) &tmp, sizeof(tmp) );
 787                         if ( rc == AC_SOCKET_ERROR ) {
 788                                 int err = sock_errno();
 789 #ifdef NEW_LOGGING
 790                                 LDAP_LOG( CONNECTION, INFO,
 791                                            "slap_open_listener: setsockopt( %ld, IPV6_V6ONLY ) failed errno %d (%s)\n",
 792                                            (long)l.sl_sd, err, sock_errstr(err) );
 793 #else
 794                                 Debug( LDAP_DEBUG_ANY,
 795                                        "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
 796                                        (long) l.sl_sd, err, sock_errstr(err) );
 797 #endif
 798                         }
 799 #endif
 800                         addrlen = sizeof(struct sockaddr_in6);
 801                         break;
 802 #endif
 803 #ifdef LDAP_PF_LOCAL
 804                 case AF_LOCAL:
 805                         addrlen = sizeof(struct sockaddr_un);
 806                         break;
 807 #endif
 808                 }
 809
 810                 if (bind(l.sl_sd, *sal, addrlen)) {
 811                         err = sock_errno();
 812 #ifdef NEW_LOGGING
 813                 LDAP_LOG( CONNECTION, INFO,
 814                         "slap_open_listener: bind(%ld) failed errno=%d (%s)\n",
 815                         (long)l.sl_sd, err, sock_errstr(err) );
 816 #else
 817                 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
 818                        (long) l.sl_sd, err, sock_errstr(err) );
 819 #endif
 820                         tcp_close( l.sl_sd );
 821                         sal++;
 822                         continue;
 823                 }
 824
 825         switch ( (*sal)->sa_family ) {
 826 #ifdef LDAP_PF_LOCAL
 827         case AF_LOCAL: {
 828                 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
 829                 if ( chmod( addr, l.sl_perms ) < 0 && crit ) {
 830                         int err = sock_errno();
 831 #ifdef NEW_LOGGING
 832                         LDAP_LOG( CONNECTION, INFO,
 833                                 "slap_open_listener: fchmod(%ld) failed errno=%d (%s)\n",
 834                                 (long)l.sl_sd, err, sock_errstr(err) );
 835 #else
 836                         Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
 837                                (long) l.sl_sd, err, sock_errstr(err) );
 838 #endif
 839                         tcp_close( l.sl_sd );
 840                         slap_free_listener_addresses(psal);
 841                         return -1;
 842                 }
 843                 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
 844                 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
 845                 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
 846                                 "PATH=%s", addr );
 847         } break;
 848 #endif /* LDAP_PF_LOCAL */
 849
 850         case AF_INET: {
 851                 char *s;
 852 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
 853                 char addr[INET_ADDRSTRLEN];
 854                 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
 855                            addr, sizeof(addr) );
 856                 s = addr;
 857 #else
 858                 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
 859 #endif
 860                 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
 861                 l.sl_name.bv_val = ber_memalloc( sizeof("IP=255.255.255.255:65535") );
 862                 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
 863                         "IP=%s:%d",
 864                          s != NULL ? s : "unknown" , port );
 865                 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
 866         } break;
 867
 868 #ifdef LDAP_PF_INET6
 869         case AF_INET6: {
 870                 char addr[INET6_ADDRSTRLEN];
 871                 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
 872                            addr, sizeof addr);
 873                 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
 874                 l.sl_name.bv_len = strlen(addr) + sizeof("IP= 65535");
 875                 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
 876                 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=%s %d",
 877                                 addr, port );
 878                 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
 879         } break;
 880 #endif /* LDAP_PF_INET6 */
 881
 882         default:
 883 #ifdef NEW_LOGGING
 884                 LDAP_LOG( CONNECTION, INFO,
 885                         "slap_open_listener: unsupported address family (%d)\n",
 886                         (int)(*sal)->sa_family, 0, 0 );
 887 #else
 888                 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
 889                         (int) (*sal)->sa_family, 0, 0 );
 890 #endif
 891                 break;
 892         }
 893
 894         AC_MEMCPY(&l.sl_sa, *sal, addrlen);
 895         ber_str2bv( url, 0, 1, &l.sl_url);
 896         li = ch_malloc( sizeof( Listener ) );
 897         *li = l;
 898         slap_listeners[*cur] = li;
 899         (*cur)++;
 900         sal++;
 901
 902         } /* while ( *sal != NULL ) */
 903
 904         slap_free_listener_addresses(psal);
 905
 906         if ( l.sl_url.bv_val == NULL )
 907         {
 908 #ifdef NEW_LOGGING
 909                 LDAP_LOG( CONNECTION, RESULTS,
 910                         "slap_open_listener: failed on %s\n", url, 0, 0 );
 911 #else
 912                 Debug( LDAP_DEBUG_TRACE,
 913                         "slap_open_listener: failed on %s\n", url, 0, 0 );
 914 #endif
 915                 return -1;
 916         }
 917
 918 #ifdef NEW_LOGGING
 919         LDAP_LOG( CONNECTION, RESULTS,
 920                 "slap_open_listener: daemon initialized %s\n",
 921                 l.sl_url.bv_val, 0, 0 );
 922 #else
 923         Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
 924                 l.sl_url.bv_val, 0, 0 );
 925 #endif
 926         return 0;
 927 }
 928
 929 static int sockinit(void);
 930 static int sockdestroy(void);
 931
 932 int slapd_daemon_init( const char *urls )
 933 {
 934         int i, j, n, rc;
 935         char **u;
 936
 937 #ifdef NEW_LOGGING
 938         LDAP_LOG( CONNECTION, ARGS,
 939                 "slapd_daemon_init: %s\n", urls ? urls : "<null>", 0, 0 );
 940 #else
 941         Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
 942                 urls ? urls : "<null>", 0, 0 );
 943 #endif
 944         if( (rc = sockinit()) != 0 ) {
 945                 return rc;
 946         }
 947
 948 #ifdef HAVE_SYSCONF
 949         dtblsize = sysconf( _SC_OPEN_MAX );
 950 #elif HAVE_GETDTABLESIZE
 951         dtblsize = getdtablesize();
 952 #else
 953         dtblsize = FD_SETSIZE;
 954 #endif
 955
 956 #ifdef FD_SETSIZE
 957         if(dtblsize > FD_SETSIZE) {
 958                 dtblsize = FD_SETSIZE;
 959         }
 960 #endif  /* !FD_SETSIZE */
 961
 962         /* open a pipe (or something equivalent connected to itself).
 963          * we write a byte on this fd whenever we catch a signal. The main
 964          * loop will be select'ing on this socket, and will wake up when
 965          * this byte arrives.
 966          */
 967         if( (rc = lutil_pair( wake_sds )) < 0 ) {
 968 #ifdef NEW_LOGGING
 969                 LDAP_LOG( CONNECTION, ERR,
 970                         "slap_daemon_init: lutil_pair() failed rc=%d\n", rc, 0, 0);
 971 #else
 972                 Debug( LDAP_DEBUG_ANY,
 973                         "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
 974 #endif
 975                 return rc;
 976         }
 977
 978         FD_ZERO( &slap_daemon.sd_readers );
 979         FD_ZERO( &slap_daemon.sd_writers );
 980
 981         if( urls == NULL ) {
 982                 urls = "ldap:///";
 983         }
 984
 985         u = ldap_str2charray( urls, " " );
 986
 987         if( u == NULL || u[0] == NULL ) {
 988 #ifdef NEW_LOGGING
 989                 LDAP_LOG( CONNECTION, ERR,
 990                         "slap_daemon_init: no urls (%s) provided.\n", urls, 0, 0 );
 991 #else
 992                 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
 993                         urls, 0, 0 );
 994 #endif
 995                 return -1;
 996         }
 997
 998         for( i=0; u[i] != NULL; i++ ) {
 999 #ifdef NEW_LOGGING
1000                 LDAP_LOG( CONNECTION, DETAIL1,
1001                         "slap_daemon_init: listen on %s\n.", u[i], 0, 0 );
1002 #else
1003                 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1004                         u[i], 0, 0 );
1005 #endif
1006         }
1007
1008         if( i == 0 ) {
1009 #ifdef NEW_LOGGING
1010                 LDAP_LOG( CONNECTION, INFO,
1011                          "slap_daemon_init: no listeners to open (%s)\n", urls, 0, 0 );
1012 #else
1013                 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1014                         urls, 0, 0 );
1015 #endif
1016                 ldap_charray_free( u );
1017                 return -1;
1018         }
1019
1020 #ifdef NEW_LOGGING
1021         LDAP_LOG( CONNECTION, INFO,
1022                 "slap_daemon_init: %d listeners to open...\n", i, 0, 0 );
1023 #else
1024         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1025                 i, 0, 0 );
1026 #endif
1027         slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1028
1029         for(n = 0, j = 0; u[n]; n++ ) {
1030                 if ( slap_open_listener( u[n], &i, &j ) ) {
1031                         ldap_charray_free( u );
1032                         return -1;
1033                 }
1034         }
1035         slap_listeners[j] = NULL;
1036
1037 #ifdef NEW_LOGGING
1038         LDAP_LOG( CONNECTION, DETAIL1,
1039                 "slap_daemon_init: %d listeners opened\n", i, 0, 0 );
1040 #else
1041         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1042                 i, 0, 0 );
1043 #endif
1044
1045 #ifdef HAVE_SLP
1046         slapd_slp_init( urls );
1047         slapd_slp_reg();
1048 #endif
1049
1050         ldap_charray_free( u );
1051         ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1052         return !i;
1053 }
1054
1055
1056 int
1057 slapd_daemon_destroy(void)
1058 {
1059         connections_destroy();
1060         tcp_close( wake_sds[1] );
1061         tcp_close( wake_sds[0] );
1062         sockdestroy();
1063
1064 #ifdef HAVE_SLP
1065         slapd_slp_dereg();
1066         slapd_slp_deinit();
1067 #endif
1068
1069         return 0;
1070 }
1071
1072
1073 static void
1074 close_listeners(
1075         int remove
1076 )
1077 {
1078         int l;
1079
1080         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1081                 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1082                         if ( remove )
1083                                 slapd_remove( slap_listeners[l]->sl_sd, 0 );
1084 #ifdef LDAP_PF_LOCAL
1085                         if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1086                                 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1087                         }
1088 #endif /* LDAP_PF_LOCAL */
1089                         slapd_close( slap_listeners[l]->sl_sd );
1090                 }
1091                 if ( slap_listeners[l]->sl_url.bv_val )
1092                         ber_memfree( slap_listeners[l]->sl_url.bv_val );
1093                 if ( slap_listeners[l]->sl_name.bv_val )
1094                         ber_memfree( slap_listeners[l]->sl_name.bv_val );
1095                 free ( slap_listeners[l] );
1096                 slap_listeners[l] = NULL;
1097         }
1098 }
1099
1100
1101 static void *
1102 slapd_daemon_task(
1103         void *ptr
1104 )
1105 {
1106         int l;
1107         time_t  last_idle_check = 0;
1108         time( &starttime );
1109
1110         if ( global_idletimeout > 0 ) {
1111                 last_idle_check = slap_get_time();
1112         }
1113         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1114                 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1115                         continue;
1116 #ifdef LDAP_CONNECTIONLESS
1117                 /* Since this is connectionless, the data port is the
1118                  * listening port. The listen() and accept() calls
1119                  * are unnecessary.
1120                  */
1121                 if ( slap_listeners[l]->sl_is_udp ) {
1122                         slapd_add( slap_listeners[l]->sl_sd );
1123                         continue;
1124                 }
1125 #endif
1126
1127                 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1128                         int err = sock_errno();
1129
1130 #ifdef LDAP_PF_INET6
1131                         /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1132                          * we are already listening to in6addr_any, then we want to ignore
1133                          * this and continue.
1134                          */
1135                         if ( err == EADDRINUSE ) {
1136                                 int i;
1137                                 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1138                                 struct sockaddr_in6 sa6;
1139
1140                                 if ( sa.sin_family == AF_INET &&
1141                                      sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1142                                         for ( i = 0 ; i < l; i++ ) {
1143                                                 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1144                                                 if ( sa6.sin6_family == AF_INET6 &&
1145                                                      !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1146                                                         break;
1147                                         }
1148
1149                                         if ( i < l ) {
1150                                                 /* We are already listening to in6addr_any */
1151 #ifdef NEW_LOGGING
1152                                                 LDAP_LOG(CONNECTION, WARNING,
1153                                                            "slapd_daemon_task: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n", 0, 0, 0 );
1154 #else
1155                                                 Debug( LDAP_DEBUG_CONNS,
1156                                                        "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1157                                                        0, 0, 0 );
1158 #endif
1159                                                 slapd_close( slap_listeners[l]->sl_sd );
1160                                                 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1161                                                 continue;
1162                                         }
1163                                 }
1164                         }
1165 #endif
1166 #ifdef NEW_LOGGING
1167                         LDAP_LOG( CONNECTION, ERR,
1168                                 "slapd_daemon_task: listen( %s, 5 ) failed errno=%d (%s)\n",
1169                                 slap_listeners[l]->sl_url.bv_val, err, sock_errstr(err) );
1170 #else
1171                         Debug( LDAP_DEBUG_ANY,
1172                                 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1173                                         slap_listeners[l]->sl_url.bv_val, err,
1174                                         sock_errstr(err) );
1175 #endif
1176                         return( (void*)-1 );
1177                 }
1178
1179                 slapd_add( slap_listeners[l]->sl_sd );
1180         }
1181
1182 #ifdef HAVE_NT_SERVICE_MANAGER
1183         if ( started_event != NULL ) {
1184                 ldap_pvt_thread_cond_signal( &started_event );
1185         }
1186 #endif
1187         /* initialization complete. Here comes the loop. */
1188
1189         while ( !slapd_shutdown ) {
1190                 ber_socket_t i;
1191                 int ns;
1192                 int at;
1193                 ber_socket_t nfds;
1194 #define SLAPD_EBADF_LIMIT 16
1195                 int ebadf = 0;
1196                 int emfile = 0;
1197
1198 #define SLAPD_IDLE_CHECK_LIMIT 4
1199                 time_t  now;
1200
1201
1202                 fd_set                  readfds;
1203                 fd_set                  writefds;
1204                 Sockaddr                from;
1205
1206 #if defined(SLAPD_RLOOKUPS)
1207                 struct hostent          *hp;
1208 #endif
1209                 struct timeval          zero;
1210                 struct timeval          *tvp;
1211
1212                 if( emfile ) {
1213                         now = slap_get_time();
1214                         connections_timeout_idle( now );
1215                 }
1216                 else if ( global_idletimeout > 0 ) {
1217                         now = slap_get_time();
1218                         if ( difftime( last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1219                                 connections_timeout_idle( now );
1220                         }
1221                 }
1222
1223 #ifdef SIGHUP
1224                 if( slapd_gentle_shutdown ) {
1225                         ber_socket_t active;
1226
1227                         if( slapd_gentle_shutdown == 1 ) {
1228                                 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1229                                 close_listeners( 1 );
1230                                 global_restrictops |= SLAP_RESTRICT_OP_WRITES;
1231                                 slapd_gentle_shutdown = 2;
1232                         }
1233
1234                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1235                         active = slap_daemon.sd_nactives;
1236                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1237                         if( active == 0 ) {
1238                                 slapd_shutdown = 2;
1239                                 break;
1240                         }
1241                 }
1242 #endif
1243
1244                 FD_ZERO( &writefds );
1245                 FD_ZERO( &readfds );
1246
1247                 zero.tv_sec = 0;
1248                 zero.tv_usec = 0;
1249
1250                 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1251
1252 #ifdef FD_SET_MANUAL_COPY
1253                 for( s = 0; s < nfds; s++ ) {
1254                         if(FD_ISSET( &slap_sd_readers, s )) {
1255                                 FD_SET( s, &readfds );
1256                         }
1257                         if(FD_ISSET( &slap_sd_writers, s )) {
1258                                 FD_SET( s, &writefds );
1259                         }
1260                 }
1261 #else
1262                 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
1263                 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
1264 #endif
1265                 assert(!FD_ISSET(wake_sds[0], &readfds));
1266                 FD_SET( wake_sds[0], &readfds );
1267
1268                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1269                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1270                                 continue;
1271                         if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds))
1272                             FD_SET( slap_listeners[l]->sl_sd, &readfds );
1273                 }
1274
1275 #ifndef HAVE_WINSOCK
1276                 nfds = slap_daemon.sd_nfds;
1277 #else
1278                 nfds = dtblsize;
1279 #endif
1280
1281                 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1282
1283                 at = ldap_pvt_thread_pool_backload(&connection_pool);
1284
1285 #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
1286                 tvp = NULL;
1287 #else
1288                 tvp = at ? &zero : NULL;
1289 #endif
1290
1291                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1292                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1293                                 continue;
1294
1295 #ifdef NEW_LOGGING
1296                         LDAP_LOG( CONNECTION, DETAIL1,
1297                                 "slapd_daemon_task: select: listen=%d "
1298                                 "active_threads=%d tvp=%s\n",
1299                                 slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
1300 #else
1301                         Debug( LDAP_DEBUG_CONNS,
1302                                 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1303                                         slap_listeners[l]->sl_sd, at,
1304                                         tvp == NULL ? "NULL" : "zero" );
1305 #endif
1306                 }
1307
1308                 switch(ns = select( nfds, &readfds,
1309 #ifdef HAVE_WINSOCK
1310                         /* don't pass empty fd_set */
1311                         ( writefds.fd_count > 0 ? &writefds : NULL ),
1312 #else
1313                         &writefds,
1314 #endif
1315                         NULL, tvp ))
1316                 {
1317                 case -1: {      /* failure - try again */
1318                                 int err = sock_errno();
1319
1320                                 if( err == EBADF
1321 #ifdef WSAENOTSOCK
1322                                         /* you'd think this would be EBADF */
1323                                         || err == WSAENOTSOCK
1324 #endif
1325                                 ) {
1326                                         if (++ebadf < SLAPD_EBADF_LIMIT)
1327                                                 continue;
1328                                 }
1329
1330                                 if( err != EINTR ) {
1331 #ifdef NEW_LOGGING
1332                                         LDAP_LOG( CONNECTION, INFO,
1333                                                 "slapd_daemon_task: select failed (%d): %s\n",
1334                                                 err, sock_errstr(err), 0 );
1335 #else
1336                                         Debug( LDAP_DEBUG_CONNS,
1337                                                 "daemon: select failed (%d): %s\n",
1338                                                 err, sock_errstr(err), 0 );
1339 #endif
1340                                         slapd_shutdown = 2;
1341                                 }
1342                         }
1343                         continue;
1344
1345                 case 0:         /* timeout - let threads run */
1346                         ebadf = 0;
1347 #ifdef NEW_LOGGING
1348                         LDAP_LOG( CONNECTION, DETAIL2,
1349                                    "slapd_daemon_task: select timeout - yielding\n", 0, 0, 0 );
1350 #else
1351                         Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1352                             0, 0, 0 );
1353 #endif
1354                         ldap_pvt_thread_yield();
1355                         continue;
1356
1357                 default:        /* something happened - deal with it */
1358                         if( slapd_shutdown ) continue;
1359
1360                         ebadf = 0;
1361 #ifdef NEW_LOGGING
1362                         LDAP_LOG( CONNECTION, DETAIL2,
1363                                    "slapd_daemon_task: activity on %d descriptors\n", ns, 0, 0 );
1364 #else
1365                         Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1366                                 ns, 0, 0 );
1367 #endif
1368                         /* FALL THRU */
1369                 }
1370
1371                 if( FD_ISSET( wake_sds[0], &readfds ) ) {
1372                         char c[BUFSIZ];
1373                         tcp_read( wake_sds[0], c, sizeof(c) );
1374 #if defined(NO_THREADS) || defined(HAVE_GNU_PTH)
1375                         waking = 0;
1376 #endif
1377                         continue;
1378                 }
1379
1380                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1381                         ber_socket_t s;
1382                         socklen_t len = sizeof(from);
1383                         long id;
1384                         slap_ssf_t ssf = 0;
1385                         char *authid = NULL;
1386
1387                         char    *dnsname = NULL;
1388                         char    *peeraddr = NULL;
1389 #ifdef LDAP_PF_LOCAL
1390                         char    peername[MAXPATHLEN + sizeof("PATH=")];
1391 #elif defined(LDAP_PF_INET6)
1392                         char    peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1393 #else
1394                         char    peername[sizeof("IP=255.255.255.255:65336")];
1395 #endif /* LDAP_PF_LOCAL */
1396
1397                         peername[0] = '\0';
1398
1399                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1400                                 continue;
1401
1402                         if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
1403                                 continue;
1404
1405 #ifdef LDAP_CONNECTIONLESS
1406                         if ( slap_listeners[l]->sl_is_udp ) {
1407                                 /* The first time we receive a query, we set this
1408                                  * up as a "connection". It remains open for the life
1409                                  * of the slapd.
1410                                  */
1411                                 if ( slap_listeners[l]->sl_is_udp < 2 ) {
1412                                     id = connection_init(
1413                                         slap_listeners[l]->sl_sd,
1414                                         slap_listeners[l], "", "",
1415                                         2, ssf, authid );
1416                                     slap_listeners[l]->sl_is_udp++;
1417                                 }
1418                                 continue;
1419                         }
1420 #endif
1421
1422                         s = accept( slap_listeners[l]->sl_sd,
1423                                 (struct sockaddr *) &from, &len );
1424                         if ( s == AC_SOCKET_INVALID ) {
1425                                 int err = sock_errno();
1426
1427 #ifdef EMFILE
1428                                 if( err == EMFILE ) {
1429                                         emfile++;
1430                                 } else
1431 #endif
1432 #ifdef ENFILE
1433                                 if( err == ENFILE ) {
1434                                         emfile++;
1435                                 } else
1436 #endif
1437                                 {
1438                                         emfile=0;
1439                                 }
1440
1441                                 if( emfile < 3 ) {
1442 #ifdef NEW_LOGGING
1443                                         LDAP_LOG( CONNECTION, ERR,
1444                                                 "slapd_daemon_task: accept(%ld) failed errno=%d (%s)\n",
1445                                                 (long)slap_listeners[l]->sl_sd,
1446                                                 err, sock_errstr(err) );
1447 #else
1448                                         Debug( LDAP_DEBUG_ANY,
1449                                             "daemon: accept(%ld) failed errno=%d (%s)\n",
1450                                             (long) slap_listeners[l]->sl_sd, err,
1451                                             sock_errstr(err) );
1452 #endif
1453                                 } else {
1454                                         /* prevent busy loop */
1455 #  ifdef HAVE_USLEEP
1456                                         if( emfile % 4 == 3 ) usleep( 250 );
1457 #  else
1458                                         if( emfile % 8 == 7 ) sleep( 1 );
1459 #  endif
1460                                 }
1461
1462                                 ldap_pvt_thread_yield();
1463                                 continue;
1464                         }
1465                         emfile = 0;
1466
1467 #ifndef HAVE_WINSOCK
1468                         /* make sure descriptor number isn't too great */
1469                         if ( s >= dtblsize ) {
1470 #ifdef NEW_LOGGING
1471                                 LDAP_LOG( CONNECTION, ERR,
1472                                    "slapd_daemon_task: %ld beyond descriptor table size %ld\n",
1473                                    (long)s, (long)dtblsize, 0 );
1474 #else
1475                                 Debug( LDAP_DEBUG_ANY,
1476                                         "daemon: %ld beyond descriptor table size %ld\n",
1477                                         (long) s, (long) dtblsize, 0 );
1478 #endif
1479
1480                                 slapd_close(s);
1481                                 ldap_pvt_thread_yield();
1482                                 continue;
1483                         }
1484 #endif
1485
1486 #ifdef LDAP_DEBUG
1487                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1488
1489                         /* newly accepted stream should not be in any of the FD SETS */
1490                         assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
1491                         assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
1492                         assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
1493
1494                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1495 #endif
1496
1497 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1498 #ifdef LDAP_PF_LOCAL
1499                         /* for IPv4 and IPv6 sockets only */
1500                         if ( from.sa_addr.sa_family != AF_LOCAL )
1501 #endif /* LDAP_PF_LOCAL */
1502                         {
1503                                 int rc;
1504                                 int tmp;
1505 #ifdef SO_KEEPALIVE
1506                                 /* enable keep alives */
1507                                 tmp = 1;
1508                                 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1509                                         (char *) &tmp, sizeof(tmp) );
1510                                 if ( rc == AC_SOCKET_ERROR ) {
1511                                         int err = sock_errno();
1512 #ifdef NEW_LOGGING
1513                                         LDAP_LOG( CONNECTION, ERR,
1514                                                 "slapd_daemon_task: setsockopt( %ld, SO_KEEPALIVE)"
1515                                            " failed errno=%d (%s)\n",
1516                                                 (long)s, err, sock_errstr(err) );
1517 #else
1518                                         Debug( LDAP_DEBUG_ANY,
1519                                                 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1520                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1521 #endif
1522                                 }
1523 #endif
1524 #ifdef TCP_NODELAY
1525                                 /* enable no delay */
1526                                 tmp = 1;
1527                                 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1528                                         (char *)&tmp, sizeof(tmp) );
1529                                 if ( rc == AC_SOCKET_ERROR ) {
1530                                         int err = sock_errno();
1531 #ifdef NEW_LOGGING
1532                                         LDAP_LOG( CONNECTION, ERR,
1533                                                 "slapd_daemon_task: setsockopt( %ld, "
1534                                                 "TCP_NODELAY) failed errno=%d (%s)\n",
1535                                                 (long)s, err, sock_errstr(err) );
1536 #else
1537                                         Debug( LDAP_DEBUG_ANY,
1538                                                 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1539                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1540 #endif
1541                                 }
1542 #endif
1543                         }
1544 #endif
1545
1546 #ifdef NEW_LOGGING
1547                         LDAP_LOG( CONNECTION, DETAIL1,
1548                                 "slapd_daemon_task: new connection on %ld\n", (long)s, 0, 0 );
1549 #else
1550                         Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1551                                 (long) s, 0, 0 );
1552 #endif
1553                         switch ( from.sa_addr.sa_family ) {
1554 #  ifdef LDAP_PF_LOCAL
1555                         case AF_LOCAL:
1556                                 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1557                                 ssf = LDAP_PVT_SASL_LOCAL_SSF;
1558                                 dnsname = "local";
1559                                 break;
1560 #endif /* LDAP_PF_LOCAL */
1561
1562 #  ifdef LDAP_PF_INET6
1563                         case AF_INET6:
1564                         if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1565                                 peeraddr = inet_ntoa( *((struct in_addr *)
1566                                                         &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1567                                 sprintf( peername, "IP=%s:%d",
1568                                          peeraddr != NULL ? peeraddr : "unknown",
1569                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1570                         } else {
1571                                 char addr[INET6_ADDRSTRLEN];
1572
1573                                 peeraddr = (char *) inet_ntop( AF_INET6,
1574                                                       &from.sa_in6_addr.sin6_addr,
1575                                                       addr, sizeof addr );
1576                                 sprintf( peername, "IP=%s %d",
1577                                          peeraddr != NULL ? peeraddr : "unknown",
1578                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1579                         }
1580                         break;
1581 #  endif /* LDAP_PF_INET6 */
1582
1583                         case AF_INET:
1584                         peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1585                         sprintf( peername, "IP=%s:%d",
1586                                 peeraddr != NULL ? peeraddr : "unknown",
1587                                 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1588                                 break;
1589
1590                         default:
1591                                 slapd_close(s);
1592                                 continue;
1593                         }
1594
1595                         if ( ( from.sa_addr.sa_family == AF_INET )
1596 #ifdef LDAP_PF_INET6
1597                                 || ( from.sa_addr.sa_family == AF_INET6 )
1598 #endif
1599                         ) {
1600 #ifdef SLAPD_RLOOKUPS
1601                                 if ( use_reverse_lookup ) {
1602 #  ifdef LDAP_PF_INET6
1603                                         if ( from.sa_addr.sa_family == AF_INET6 )
1604                                                 hp = gethostbyaddr(
1605                                                         (char *)&(from.sa_in6_addr.sin6_addr),
1606                                                         sizeof(from.sa_in6_addr.sin6_addr),
1607                                                         AF_INET6 );
1608                                         else
1609 #  endif /* LDAP_PF_INET6 */
1610                                         hp = gethostbyaddr(
1611                                                 (char *) &(from.sa_in_addr.sin_addr),
1612                                                 sizeof(from.sa_in_addr.sin_addr),
1613                                                 AF_INET );
1614                                         dnsname = hp ? ldap_pvt_str2lower( hp->h_name ) : NULL;
1615                                 }
1616 #else
1617                                 dnsname = NULL;
1618 #endif /* SLAPD_RLOOKUPS */
1619
1620 #ifdef HAVE_TCPD
1621                                 if ( !hosts_ctl("slapd",
1622                                                 dnsname != NULL ? dnsname : STRING_UNKNOWN,
1623                                                 peeraddr != NULL ? peeraddr : STRING_UNKNOWN,
1624                                                 STRING_UNKNOWN ))
1625                                 {
1626                                         /* DENY ACCESS */
1627                                         Statslog( LDAP_DEBUG_ANY,
1628                                                 "fd=%ld host access from %s (%s) denied.\n",
1629                                                 (long) s,
1630                                                 dnsname != NULL ? dnsname : "unknown",
1631                                                 peeraddr != NULL ? peeraddr : "unknown",
1632                                                 0, 0 );
1633                                         slapd_close(s);
1634                                         continue;
1635                                 }
1636 #endif /* HAVE_TCPD */
1637                         }
1638
1639                         id = connection_init(s,
1640                                 slap_listeners[l],
1641                                 dnsname != NULL ? dnsname : "unknown",
1642                                 peername,
1643 #ifdef HAVE_TLS
1644                                 slap_listeners[l]->sl_is_tls,
1645 #else
1646                                 0,
1647 #endif
1648                                 ssf,
1649                                 authid );
1650
1651                         if( authid ) ch_free(authid);
1652
1653                         if( id < 0 ) {
1654 #ifdef NEW_LOGGING
1655                                 LDAP_LOG( CONNECTION, INFO,
1656                                         "slapd_daemon_task: "
1657                                         "connection_init(%ld, %s, %s) "
1658                                         "failed.\n",
1659                                         (long)s, peername,
1660                                         slap_listeners[l]->sl_name.bv_val );
1661 #else
1662                                 Debug( LDAP_DEBUG_ANY,
1663                                         "daemon: connection_init(%ld, %s, %s) "
1664                                         "failed.\n",
1665                                         (long) s,
1666                                         peername,
1667                                         slap_listeners[l]->sl_name.bv_val );
1668 #endif
1669                                 slapd_close(s);
1670                                 continue;
1671                         }
1672
1673                         Statslog( LDAP_DEBUG_STATS,
1674                                 "daemon: conn=%ld fd=%ld connection from %s "
1675                                 "(%s) accepted.\n",
1676                                 id, (long) s,
1677                                 peername,
1678                                 slap_listeners[l]->sl_name.bv_val,
1679                                 0 );
1680
1681                         slapd_add( s );
1682                         continue;
1683                 }
1684
1685 #ifdef LDAP_DEBUG
1686 #ifdef NEW_LOGGING
1687                 LDAP_LOG( CONNECTION, DETAIL2,
1688                            "slapd_daemon_task: activity on ", 0, 0, 0 );
1689 #else
1690                 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1691 #endif
1692 #ifdef HAVE_WINSOCK
1693                 for ( i = 0; i < readfds.fd_count; i++ ) {
1694 #ifdef NEW_LOGGING
1695                         LDAP_LOG( CONNECTION, DETAIL2,
1696                                 " %d%s", readfds.fd_array[i], "r", 0, 0 );
1697 #else
1698                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1699                                 readfds.fd_array[i], "r", 0 );
1700 #endif
1701                 }
1702                 for ( i = 0; i < writefds.fd_count; i++ ) {
1703 #ifdef NEW_LOGGING
1704                         LDAP_LOG( CONNECTION, DETAIL2,
1705                                 " %d%s", writefds.fd_array[i], "w" , 0 );
1706 #else
1707                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1708                                 writefds.fd_array[i], "w", 0 );
1709 #endif
1710                 }
1711
1712 #else
1713                 for ( i = 0; i < nfds; i++ ) {
1714                         int     r, w;
1715                         int     is_listener = 0;
1716
1717                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1718                                 if ( i == slap_listeners[l]->sl_sd ) {
1719 #ifdef LDAP_CONNECTIONLESS
1720                                 /* The listener is the data port. Don't
1721                                  * skip it.
1722                                  */
1723                                         if (slap_listeners[l]->sl_is_udp) continue;
1724 #endif
1725                                         is_listener = 1;
1726                                         break;
1727                                 }
1728                         }
1729                         if ( is_listener ) {
1730                                 continue;
1731                         }
1732                         r = FD_ISSET( i, &readfds );
1733                         w = FD_ISSET( i, &writefds );
1734                         if ( r || w ) {
1735 #ifdef NEW_LOGGING
1736                                 LDAP_LOG( CONNECTION, DETAIL2,
1737                                         " %d%s%s", i, r ? "r" : "", w ? "w" : "" );
1738 #else
1739                                 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1740                                     r ? "r" : "", w ? "w" : "" );
1741 #endif
1742                         }
1743                 }
1744 #endif
1745 #ifdef NEW_LOGGING
1746                 LDAP_LOG( CONNECTION, DETAIL2, "\n", 0, 0, 0 );
1747 #else
1748                 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1749 #endif
1750
1751 #endif
1752
1753                 /* loop through the writers */
1754 #ifdef HAVE_WINSOCK
1755                 for ( i = 0; i < writefds.fd_count; i++ )
1756 #else
1757                 for ( i = 0; i < nfds; i++ )
1758 #endif
1759                 {
1760                         ber_socket_t wd;
1761                         int is_listener = 0;
1762 #ifdef HAVE_WINSOCK
1763                         wd = writefds.fd_array[i];
1764 #else
1765                         if( ! FD_ISSET( i, &writefds ) ) {
1766                                 continue;
1767                         }
1768                         wd = i;
1769 #endif
1770
1771                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1772                                 if ( i == slap_listeners[l]->sl_sd ) {
1773 #ifdef LDAP_CONNECTIONLESS
1774                                         if (slap_listeners[l]->sl_is_udp) continue;
1775 #endif
1776                                         is_listener = 1;
1777                                         break;
1778                                 }
1779                         }
1780                         if ( is_listener ) {
1781                                 continue;
1782                         }
1783 #ifdef NEW_LOGGING
1784                         LDAP_LOG( CONNECTION, DETAIL2,
1785                                 "slapd_daemon_task: write active on %d\n", wd, 0, 0 );
1786 #else
1787                         Debug( LDAP_DEBUG_CONNS,
1788                                 "daemon: write active on %d\n",
1789                                 wd, 0, 0 );
1790 #endif
1791                         /*
1792                          * NOTE: it is possible that the connection was closed
1793                          * and that the stream is now inactive.
1794                          * connection_write() must valid the stream is still
1795                          * active.
1796                          */
1797
1798                         if ( connection_write( wd ) < 0 ) {
1799                                 FD_CLR( (unsigned) wd, &readfds );
1800                                 slapd_close( wd );
1801                         }
1802                 }
1803
1804 #ifdef HAVE_WINSOCK
1805                 for ( i = 0; i < readfds.fd_count; i++ )
1806 #else
1807                 for ( i = 0; i < nfds; i++ )
1808 #endif
1809                 {
1810                         ber_socket_t rd;
1811                         int is_listener = 0;
1812
1813 #ifdef HAVE_WINSOCK
1814                         rd = readfds.fd_array[i];
1815 #else
1816                         if( ! FD_ISSET( i, &readfds ) ) {
1817                                 continue;
1818                         }
1819                         rd = i;
1820 #endif
1821
1822                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1823                                 if ( rd == slap_listeners[l]->sl_sd ) {
1824 #ifdef LDAP_CONNECTIONLESS
1825                                         if (slap_listeners[l]->sl_is_udp) continue;
1826 #endif
1827                                         is_listener = 1;
1828                                         break;
1829                                 }
1830                         }
1831                         if ( is_listener ) {
1832                                 continue;
1833                         }
1834
1835 #ifdef NEW_LOGGING
1836                         LDAP_LOG( CONNECTION, DETAIL2,
1837                                 "slapd_daemon_task: read activity on %d\n", rd, 0, 0 );
1838 #else
1839                         Debug ( LDAP_DEBUG_CONNS,
1840                                 "daemon: read activity on %d\n", rd, 0, 0 );
1841 #endif
1842                         /*
1843                          * NOTE: it is possible that the connection was closed
1844                          * and that the stream is now inactive.
1845                          * connection_read() must valid the stream is still
1846                          * active.
1847                          */
1848
1849                         if ( connection_read( rd ) < 0 ) {
1850                                 slapd_close( rd );
1851                         }
1852                 }
1853                 ldap_pvt_thread_yield();
1854         }
1855
1856         if( slapd_shutdown == 1 ) {
1857 #ifdef NEW_LOGGING
1858                 LDAP_LOG( CONNECTION, CRIT,
1859                    "slapd_daemon_task: shutdown requested and initiated.\n", 0, 0, 0 );
1860 #else
1861                 Debug( LDAP_DEBUG_TRACE,
1862                         "daemon: shutdown requested and initiated.\n",
1863                         0, 0, 0 );
1864 #endif
1865
1866         } else if ( slapd_shutdown == 2 ) {
1867 #ifdef HAVE_NT_SERVICE_MANAGER
1868 #ifdef NEW_LOGGING
1869                         LDAP_LOG( CONNECTION, CRIT,
1870                            "slapd_daemon_task: shutdown initiated by Service Manager.\n",
1871                            0, 0, 0);
1872 #else
1873                         Debug( LDAP_DEBUG_TRACE,
1874                                "daemon: shutdown initiated by Service Manager.\n",
1875                                0, 0, 0);
1876 #endif
1877 #else /* !HAVE_NT_SERVICE_MANAGER */
1878 #ifdef NEW_LOGGING
1879                         LDAP_LOG( CONNECTION, CRIT,
1880                            "slapd_daemon_task: abnormal condition, "
1881                            "shutdown initiated.\n", 0, 0, 0 );
1882 #else
1883                         Debug( LDAP_DEBUG_TRACE,
1884                                "daemon: abnormal condition, shutdown initiated.\n",
1885                                0, 0, 0 );
1886 #endif
1887 #endif /* !HAVE_NT_SERVICE_MANAGER */
1888         } else {
1889 #ifdef NEW_LOGGING
1890                 LDAP_LOG( CONNECTION, CRIT,
1891                    "slapd_daemon_task: no active streams, shutdown initiated.\n",
1892                    0, 0, 0 );
1893 #else
1894                 Debug( LDAP_DEBUG_TRACE,
1895                        "daemon: no active streams, shutdown initiated.\n",
1896                        0, 0, 0 );
1897 #endif
1898         }
1899
1900         if( slapd_gentle_shutdown != 2 )
1901                 close_listeners ( 0 );
1902         free ( slap_listeners );
1903         slap_listeners = NULL;
1904
1905 #ifdef NEW_LOGGING
1906         LDAP_LOG( CONNECTION, CRIT,
1907                 "slapd_daemon_task: shutdown waiting for %d threads to terminate.\n",
1908                 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1909 #else
1910         Debug( LDAP_DEBUG_ANY,
1911             "slapd shutdown: waiting for %d threads to terminate\n",
1912             ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1913 #endif
1914         ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1915
1916         return NULL;
1917 }
1918
1919
1920 int slapd_daemon( void )
1921 {
1922         int rc;
1923
1924         connections_init();
1925
1926 #define SLAPD_LISTENER_THREAD 1
1927 #if defined( SLAPD_LISTENER_THREAD )
1928         {
1929                 ldap_pvt_thread_t       listener_tid;
1930
1931                 /* listener as a separate THREAD */
1932                 rc = ldap_pvt_thread_create( &listener_tid,
1933                         0, slapd_daemon_task, NULL );
1934
1935                 if ( rc != 0 ) {
1936 #ifdef NEW_LOGGING
1937                         LDAP_LOG( CONNECTION, ERR,
1938                                 "slapd_daemon: listener ldap_pvt_thread_create failed (%d).\n",
1939                                 rc, 0, 0 );
1940 #else
1941                         Debug( LDAP_DEBUG_ANY,
1942                         "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
1943 #endif
1944                         return rc;
1945                 }
1946
1947                 /* wait for the listener thread to complete */
1948                 ldap_pvt_thread_join( listener_tid, (void *) NULL );
1949         }
1950 #else
1951         /* experimental code */
1952         slapd_daemon_task( NULL );
1953 #endif
1954
1955         return 0;
1956
1957 }
1958
1959 int sockinit(void)
1960 {
1961 #if defined( HAVE_WINSOCK2 )
1962     WORD wVersionRequested;
1963         WSADATA wsaData;
1964         int err;
1965
1966         wVersionRequested = MAKEWORD( 2, 0 );
1967
1968         err = WSAStartup( wVersionRequested, &wsaData );
1969         if ( err != 0 ) {
1970                 /* Tell the user that we couldn't find a usable */
1971                 /* WinSock DLL.                                  */
1972                 return -1;
1973         }
1974
1975         /* Confirm that the WinSock DLL supports 2.0.*/
1976         /* Note that if the DLL supports versions greater    */
1977         /* than 2.0 in addition to 2.0, it will still return */
1978         /* 2.0 in wVersion since that is the version we      */
1979         /* requested.                                        */
1980
1981         if ( LOBYTE( wsaData.wVersion ) != 2 ||
1982                 HIBYTE( wsaData.wVersion ) != 0 )
1983         {
1984             /* Tell the user that we couldn't find a usable */
1985             /* WinSock DLL.                                  */
1986             WSACleanup();
1987             return -1;
1988         }
1989
1990         /* The WinSock DLL is acceptable. Proceed. */
1991 #elif defined( HAVE_WINSOCK )
1992         WSADATA wsaData;
1993         if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
1994             return -1;
1995         }
1996 #endif
1997         return 0;
1998 }
1999
2000 int sockdestroy(void)
2001 {
2002 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2003         WSACleanup();
2004 #endif
2005         return 0;
2006 }
2007
2008 RETSIGTYPE
2009 slap_sig_shutdown( int sig )
2010 {
2011 #ifdef NEW_LOGGING
2012         LDAP_LOG( CONNECTION, CRIT,
2013                 "slap_sig_shutdown: signal %d\n", sig, 0, 0 );
2014 #else
2015         Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2016 #endif
2017
2018         /*
2019          * If the NT Service Manager is controlling the server, we don't
2020          * want SIGBREAK to kill the server. For some strange reason,
2021          * SIGBREAK is generated when a user logs out.
2022          */
2023
2024 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2025         if (is_NT_Service && sig == SIGBREAK)
2026 #ifdef NEW_LOGGING
2027             LDAP_LOG( CONNECTION, CRIT,
2028                     "slap_sig_shutdown: SIGBREAK ignored.\n", 0, 0, 0 );
2029 #else
2030             Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n",
2031                   0, 0, 0);
2032 #endif
2033         else
2034 #endif
2035 #ifdef SIGHUP
2036         if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
2037                 slapd_gentle_shutdown = 1;
2038         else
2039 #endif
2040         slapd_shutdown = 1;
2041
2042         WAKE_LISTENER(1);
2043
2044         /* reinstall self */
2045         (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2046 }
2047
2048 RETSIGTYPE
2049 slap_sig_wake( int sig )
2050 {
2051         WAKE_LISTENER(1);
2052
2053         /* reinstall self */
2054         (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2055 }
2056
2057
2058 void slapd_add_internal(ber_socket_t s) {
2059         slapd_add(s);
2060 }
2061
2062 Listener ** slapd_get_listeners(void) {
2063         return slap_listeners;
2064 }