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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2003 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 #include "ldap_rq.h"
  24
  25 #ifdef HAVE_TCPD
  26 #include <tcpd.h>
  27 #define SLAP_STRING_UNKNOWN     STRING_UNKNOWN
  28
  29 int allow_severity = LOG_INFO;
  30 int deny_severity = LOG_NOTICE;
  31 #else /* ! TCP Wrappers */
  32 #define SLAP_STRING_UNKNOWN     "unknown"
  33 #endif /* ! TCP Wrappers */
  34
  35 #ifdef LDAP_PF_LOCAL
  36 #include <sys/stat.h>
  37 /* this should go in <ldap.h> as soon as it is accepted */
  38 #define LDAPI_MOD_URLEXT                "x-mod"
  39 #endif /* LDAP_PF_LOCAL */
  40
  41 #ifdef LDAP_PF_INET6
  42 int slap_inet4or6 = AF_UNSPEC;
  43 #else
  44 int slap_inet4or6 = AF_INET;
  45 #endif
  46
  47 /* globals */
  48 time_t starttime;
  49 ber_socket_t dtblsize;
  50
  51 Listener **slap_listeners = NULL;
  52
  53 #define SLAPD_LISTEN 10
  54
  55 static ber_socket_t wake_sds[2];
  56 static int emfile;
  57
  58 #if defined(NO_THREADS) || defined(HAVE_GNU_PTH)
  59 static int waking;
  60 #define WAKE_LISTENER(w) \
  61 ((w && !waking) ? tcp_write( wake_sds[1], "0", 1 ), waking=1 : 0)
  62 #else
  63 #define WAKE_LISTENER(w) \
  64 do { if (w) tcp_write( wake_sds[1], "0", 1 ); } while(0)
  65 #endif
  66
  67 #ifndef HAVE_WINSOCK
  68 static
  69 #endif
  70 volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_shutdown = 0;
  71 volatile sig_atomic_t slapd_abrupt_shutdown = 0;
  72
  73 static struct slap_daemon {
  74         ldap_pvt_thread_mutex_t sd_mutex;
  75
  76         ber_socket_t sd_nactives;
  77
  78 #ifndef HAVE_WINSOCK
  79         /* In winsock, accept() returns values higher than dtblsize
  80                 so don't bother with this optimization */
  81         int sd_nfds;
  82 #endif
  83
  84         fd_set sd_actives;
  85         fd_set sd_readers;
  86         fd_set sd_writers;
  87 } slap_daemon;
  88
  89
  90
  91 #ifdef HAVE_SLP
  92 /*
  93  * SLP related functions
  94  */
  95 #include <slp.h>
  96
  97 #define LDAP_SRVTYPE_PREFIX "service:ldap://"
  98 #define LDAPS_SRVTYPE_PREFIX "service:ldaps://"
  99 static char** slapd_srvurls = NULL;
 100 static SLPHandle slapd_hslp = 0;
 101
 102 void slapd_slp_init( const char* urls ) {
 103         int i;
 104
 105         slapd_srvurls = ldap_str2charray( urls, " " );
 106
 107         if( slapd_srvurls == NULL ) return;
 108
 109         /* find and expand INADDR_ANY URLs */
 110         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
 111                 if( strcmp( slapd_srvurls[i], "ldap:///" ) == 0) {
 112                         char *host = ldap_pvt_get_fqdn( NULL );
 113                         if ( host != NULL ) {
 114                                 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
 115                                         strlen( host ) +
 116                                         sizeof( LDAP_SRVTYPE_PREFIX ) );
 117                                 strcpy( lutil_strcopy(slapd_srvurls[i],
 118                                         LDAP_SRVTYPE_PREFIX ), host );
 119
 120                                 ch_free( host );
 121                         }
 122
 123                 } else if ( strcmp( slapd_srvurls[i], "ldaps:///" ) == 0) {
 124                         char *host = ldap_pvt_get_fqdn( NULL );
 125                         if ( host != NULL ) {
 126                                 slapd_srvurls[i] = (char *) ch_realloc( slapd_srvurls[i],
 127                                         strlen( host ) +
 128                                         sizeof( LDAPS_SRVTYPE_PREFIX ) );
 129                                 strcpy( lutil_strcopy(slapd_srvurls[i],
 130                                         LDAPS_SRVTYPE_PREFIX ), host );
 131
 132                                 ch_free( host );
 133                         }
 134                 }
 135         }
 136
 137         /* open the SLP handle */
 138         SLPOpen( "en", 0, &slapd_hslp );
 139 }
 140
 141 void slapd_slp_deinit() {
 142         if( slapd_srvurls == NULL ) return;
 143
 144         ldap_charray_free( slapd_srvurls );
 145         slapd_srvurls = NULL;
 146
 147         /* close the SLP handle */
 148         SLPClose( slapd_hslp );
 149 }
 150
 151 void slapd_slp_regreport(
 152         SLPHandle hslp,
 153         SLPError errcode,
 154         void* cookie )
 155 {
 156         /* empty report */
 157 }
 158
 159 void slapd_slp_reg() {
 160         int i;
 161
 162         if( slapd_srvurls == NULL ) return;
 163
 164         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
 165                 if( strncmp( slapd_srvurls[i], LDAP_SRVTYPE_PREFIX,
 166                                 sizeof( LDAP_SRVTYPE_PREFIX ) - 1 ) == 0 ||
 167                     strncmp( slapd_srvurls[i], LDAPS_SRVTYPE_PREFIX,
 168                                 sizeof( LDAPS_SRVTYPE_PREFIX ) - 1 ) == 0 )
 169                 {
 170                         SLPReg( slapd_hslp,
 171                                 slapd_srvurls[i],
 172                                 SLP_LIFETIME_MAXIMUM,
 173                                 "ldap",
 174                                 "",
 175                                 1,
 176                                 slapd_slp_regreport,
 177                                 NULL );
 178                 }
 179         }
 180 }
 181
 182 void slapd_slp_dereg() {
 183         int i;
 184
 185         if( slapd_srvurls == NULL ) return;
 186
 187         for( i=0; slapd_srvurls[i] != NULL; i++ ) {
 188                 SLPDereg( slapd_hslp,
 189                         slapd_srvurls[i],
 190                         slapd_slp_regreport,
 191                         NULL );
 192         }
 193 }
 194 #endif /* HAVE_SLP */
 195
 196 /*
 197  * Add a descriptor to daemon control
 198  */
 199 static void slapd_add(ber_socket_t s) {
 200         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 201
 202         assert( !FD_ISSET( s, &slap_daemon.sd_actives ));
 203         assert( !FD_ISSET( s, &slap_daemon.sd_readers ));
 204         assert( !FD_ISSET( s, &slap_daemon.sd_writers ));
 205
 206 #ifndef HAVE_WINSOCK
 207         if (s >= slap_daemon.sd_nfds) {
 208                 slap_daemon.sd_nfds = s + 1;
 209         }
 210 #endif
 211
 212         slap_daemon.sd_nactives++;
 213
 214         FD_SET( s, &slap_daemon.sd_actives );
 215         FD_SET( s, &slap_daemon.sd_readers );
 216
 217 #ifdef NEW_LOGGING
 218         LDAP_LOG( CONNECTION, DETAIL1,
 219                 "slapd_add: added %ld%s%s\n", (long)s,
 220                 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 221                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
 222 #else
 223         Debug( LDAP_DEBUG_CONNS, "daemon: added %ld%s%s\n",
 224                 (long) s,
 225             FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 226                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
 227 #endif
 228         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 229 }
 230
 231 /*
 232  * Remove the descriptor from daemon control
 233  */
 234 void slapd_remove(ber_socket_t s, int wake) {
 235         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 236
 237         slap_daemon.sd_nactives--;
 238
 239 #ifdef NEW_LOGGING
 240         LDAP_LOG( CONNECTION, DETAIL1,
 241                 "slapd_remove: removing %ld%s%s\n", (long) s,
 242                 FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 243                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : ""  );
 244 #else
 245         Debug( LDAP_DEBUG_CONNS, "daemon: removing %ld%s%s\n",
 246                 (long) s,
 247             FD_ISSET(s, &slap_daemon.sd_readers) ? "r" : "",
 248                 FD_ISSET(s, &slap_daemon.sd_writers) ? "w" : "" );
 249 #endif
 250         FD_CLR( s, &slap_daemon.sd_actives );
 251         FD_CLR( s, &slap_daemon.sd_readers );
 252         FD_CLR( s, &slap_daemon.sd_writers );
 253
 254         /* If we ran out of file descriptors, we dropped a listener from
 255          * the select() loop. Now that we're removing a session from our
 256          * control, we can try to resume a dropped listener to use.
 257          */
 258         if ( emfile ) {
 259                 int i;
 260                 for ( i = 0; slap_listeners[i] != NULL; i++ ) {
 261                         if ( slap_listeners[i]->sl_sd != AC_SOCKET_INVALID ) {
 262                                 if ( slap_listeners[i]->sl_sd == s ) continue;
 263                                 if ( slap_listeners[i]->sl_is_mute ) {
 264                                         slap_listeners[i]->sl_is_mute = 0;
 265                                         emfile--;
 266                                         break;
 267                                 }
 268                         }
 269                 }
 270                 /* Walked the entire list without enabling anything; emfile
 271                  * counter is stale. Reset it.
 272                  */
 273                 if ( slap_listeners[i] == NULL )
 274                         emfile = 0;
 275         }
 276         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 277         WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
 278 }
 279
 280 void slapd_clr_write(ber_socket_t s, int wake) {
 281         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 282
 283         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 284         FD_CLR( s, &slap_daemon.sd_writers );
 285
 286         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 287         WAKE_LISTENER(wake);
 288 }
 289
 290 void slapd_set_write(ber_socket_t s, int wake) {
 291         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 292
 293         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 294         if (!FD_ISSET(s, &slap_daemon.sd_writers))
 295             FD_SET( (unsigned) s, &slap_daemon.sd_writers );
 296
 297         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 298         WAKE_LISTENER(wake);
 299 }
 300
 301 void slapd_clr_read(ber_socket_t s, int wake) {
 302         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 303
 304         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 305         FD_CLR( s, &slap_daemon.sd_readers );
 306
 307         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 308         WAKE_LISTENER(wake);
 309 }
 310
 311 void slapd_set_read(ber_socket_t s, int wake) {
 312         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 313
 314         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 315         if (!FD_ISSET(s, &slap_daemon.sd_readers))
 316             FD_SET( s, &slap_daemon.sd_readers );
 317
 318         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 319         WAKE_LISTENER(wake);
 320 }
 321
 322 static void slapd_close(ber_socket_t s) {
 323 #ifdef NEW_LOGGING
 324         LDAP_LOG( CONNECTION, DETAIL1, "slapd_close: closing %ld\n", (long)s, 0, 0);
 325 #else
 326         Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
 327                 (long) s, 0, 0 );
 328 #endif
 329         tcp_close(s);
 330 }
 331
 332 static void slap_free_listener_addresses(struct sockaddr **sal)
 333 {
 334         struct sockaddr **sap;
 335
 336         if (sal == NULL) {
 337                 return;
 338         }
 339
 340         for (sap = sal; *sap != NULL; sap++) {
 341                 ch_free(*sap);
 342         }
 343
 344         ch_free(sal);
 345 }
 346
 347 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
 348 static int get_url_perms(
 349         char    **exts,
 350         mode_t  *perms,
 351         int     *crit )
 352 {
 353         int     i;
 354
 355         assert( exts );
 356         assert( perms );
 357         assert( crit );
 358
 359         *crit = 0;
 360         for ( i = 0; exts[ i ]; i++ ) {
 361                 char    *type = exts[ i ];
 362                 int     c = 0;
 363
 364                 if ( type[ 0 ] == '!' ) {
 365                         c = 1;
 366                         type++;
 367                 }
 368
 369                 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
 370                         char    *value = type
 371                                 + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
 372                         mode_t  p = 0;
 373                         int     j;
 374
 375                         switch (strlen(value)) {
 376                         case 4:
 377                                 /* skip leading '0' */
 378                                 if ( value[ 0 ] != '0' ) {
 379                                         return LDAP_OTHER;
 380                                 }
 381                                 value++;
 382
 383                         case 3:
 384                                 for ( j = 0; j < 3; j++) {
 385                                         int     v;
 386
 387                                         v = value[ j ] - '0';
 388
 389                                         if ( v < 0 || v > 7 ) {
 390                                                 return LDAP_OTHER;
 391                                         }
 392
 393                                         p |= v << 3*(2-j);
 394                                 }
 395                                 break;
 396
 397                         case 10:
 398                                 for ( j = 1; j < 10; j++ ) {
 399                                         static mode_t   m[] = { 0,
 400                                                 S_IRUSR, S_IWUSR, S_IXUSR,
 401                                                 S_IRGRP, S_IWGRP, S_IXGRP,
 402                                                 S_IROTH, S_IWOTH, S_IXOTH
 403                                         };
 404                                         static char     c[] = "-rwxrwxrwx";
 405
 406                                         if ( value[ j ] == c[ j ] ) {
 407                                                 p |= m[ j ];
 408
 409                                         } else if ( value[ j ] != '-' ) {
 410                                                 return LDAP_OTHER;
 411                                         }
 412                                 }
 413                                 break;
 414
 415                         default:
 416                                 return LDAP_OTHER;
 417                         }
 418
 419                         *crit = c;
 420                         *perms = p;
 421
 422                         return LDAP_SUCCESS;
 423                 }
 424         }
 425
 426         return LDAP_OTHER;
 427 }
 428 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
 429
 430 /* port = 0 indicates AF_LOCAL */
 431 static int slap_get_listener_addresses(
 432         const char *host,
 433         unsigned short port,
 434         struct sockaddr ***sal)
 435 {
 436         struct sockaddr **sap;
 437
 438 #ifdef LDAP_PF_LOCAL
 439         if ( port == 0 ) {
 440                 *sal = ch_malloc(2 * sizeof(void *));
 441                 if (*sal == NULL) {
 442                         return -1;
 443                 }
 444
 445                 sap = *sal;
 446                 *sap = ch_malloc(sizeof(struct sockaddr_un));
 447                 if (*sap == NULL)
 448                         goto errexit;
 449                 sap[1] = NULL;
 450
 451                 if ( strlen(host) >
 452                      (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
 453 #ifdef NEW_LOGGING
 454                         LDAP_LOG( CONNECTION, INFO,
 455                                 "slap_get_listener_addresses: domain socket path (%s) "
 456                                 "too long in URL\n", host, 0, 0 );
 457 #else
 458                         Debug( LDAP_DEBUG_ANY,
 459                                "daemon: domain socket path (%s) too long in URL",
 460                                host, 0, 0);
 461 #endif
 462                         goto errexit;
 463                 }
 464
 465                 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
 466                 (*sap)->sa_family = AF_LOCAL;
 467                 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
 468         } else
 469 #endif
 470         {
 471 #ifdef HAVE_GETADDRINFO
 472                 struct addrinfo hints, *res, *sai;
 473                 int n, err;
 474                 char serv[7];
 475
 476                 memset( &hints, '\0', sizeof(hints) );
 477                 hints.ai_flags = AI_PASSIVE;
 478                 hints.ai_socktype = SOCK_STREAM;
 479                 hints.ai_family = slap_inet4or6;
 480                 snprintf(serv, sizeof serv, "%d", port);
 481
 482                 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
 483 #ifdef NEW_LOGGING
 484                         LDAP_LOG( CONNECTION, INFO,
 485                                    "slap_get_listener_addresses: getaddrinfo failed: %s\n",
 486                                    AC_GAI_STRERROR(err), 0, 0 );
 487 #else
 488                         Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
 489                                 AC_GAI_STRERROR(err), 0, 0);
 490 #endif
 491                         return -1;
 492                 }
 493
 494                 sai = res;
 495                 for (n=2; (sai = sai->ai_next) != NULL; n++) {
 496                         /* EMPTY */ ;
 497                 }
 498                 *sal = ch_calloc(n, sizeof(void *));
 499                 if (*sal == NULL) {
 500                         return -1;
 501                 }
 502
 503                 sap = *sal;
 504                 *sap = NULL;
 505
 506                 for ( sai=res; sai; sai=sai->ai_next ) {
 507                         if( sai->ai_addr == NULL ) {
 508 #ifdef NEW_LOGGING
 509                                 LDAP_LOG( CONNECTION, INFO,
 510                                         "slap_get_listener_addresses: "
 511                                         "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
 512 #else
 513                                 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
 514                                         "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
 515 #endif
 516                                 freeaddrinfo(res);
 517                                 goto errexit;
 518                         }
 519
 520                         switch (sai->ai_family) {
 521 #  ifdef LDAP_PF_INET6
 522                         case AF_INET6:
 523                                 *sap = ch_malloc(sizeof(struct sockaddr_in6));
 524                                 if (*sap == NULL) {
 525                                         freeaddrinfo(res);
 526                                         goto errexit;
 527                                 }
 528                                 *(struct sockaddr_in6 *)*sap =
 529                                         *((struct sockaddr_in6 *)sai->ai_addr);
 530                                 break;
 531 #  endif
 532                         case AF_INET:
 533                                 *sap = ch_malloc(sizeof(struct sockaddr_in));
 534                                 if (*sap == NULL) {
 535                                         freeaddrinfo(res);
 536                                         goto errexit;
 537                                 }
 538                                 *(struct sockaddr_in *)*sap =
 539                                         *((struct sockaddr_in *)sai->ai_addr);
 540                                 break;
 541                         default:
 542                                 *sap = NULL;
 543                                 break;
 544                         }
 545
 546                         if (*sap != NULL) {
 547                                 (*sap)->sa_family = sai->ai_family;
 548                                 sap++;
 549                                 *sap = NULL;
 550                         }
 551                 }
 552
 553                 freeaddrinfo(res);
 554 #else
 555                 int i, n = 1;
 556                 struct in_addr in;
 557                 struct hostent *he = NULL;
 558
 559                 if ( host == NULL ) {
 560                         in.s_addr = htonl(INADDR_ANY);
 561
 562                 } else if ( !inet_aton( host, &in ) ) {
 563                         he = gethostbyname( host );
 564                         if( he == NULL ) {
 565 #ifdef NEW_LOGGING
 566                                 LDAP_LOG( CONNECTION, INFO,
 567                                         "slap_get_listener_addresses: invalid host %s\n", host, 0, 0 );
 568 #else
 569                                 Debug( LDAP_DEBUG_ANY,
 570                                        "daemon: invalid host %s", host, 0, 0);
 571 #endif
 572                                 return -1;
 573                         }
 574                         for (n = 0; he->h_addr_list[n]; n++) ;
 575                 }
 576
 577                 *sal = ch_malloc((n+1) * sizeof(void *));
 578                 if (*sal == NULL) {
 579                         return -1;
 580                 }
 581
 582                 sap = *sal;
 583                 for ( i = 0; i<n; i++ ) {
 584                         sap[i] = ch_malloc(sizeof(struct sockaddr_in));
 585                         if (*sap == NULL) {
 586                                 goto errexit;
 587                         }
 588                         (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
 589                         sap[i]->sa_family = AF_INET;
 590                         ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
 591                         if (he) {
 592                                 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
 593                         } else {
 594                                 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
 595                         }
 596                 }
 597                 sap[i] = NULL;
 598 #endif
 599         }
 600
 601         return 0;
 602
 603 errexit:
 604         slap_free_listener_addresses(*sal);
 605         return -1;
 606 }
 607
 608 static int slap_open_listener(
 609         const char* url,
 610         int *listeners,
 611         int *cur
 612         )
 613 {
 614         int     num, tmp, rc;
 615         Listener l;
 616         Listener *li;
 617         LDAPURLDesc *lud;
 618         unsigned short port;
 619         int err, addrlen = 0;
 620         struct sockaddr **sal, **psal;
 621         int socktype = SOCK_STREAM;     /* default to COTS */
 622
 623 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
 624         /*
 625          * use safe defaults
 626          */
 627         int     crit = 1;
 628 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
 629
 630         rc = ldap_url_parse( url, &lud );
 631
 632         if( rc != LDAP_URL_SUCCESS ) {
 633 #ifdef NEW_LOGGING
 634                 LDAP_LOG( CONNECTION, ERR,
 635                         "slap_open_listener: listen URL \"%s\" parse error %d\n",
 636                         url, rc , 0 );
 637 #else
 638                 Debug( LDAP_DEBUG_ANY,
 639                         "daemon: listen URL \"%s\" parse error=%d\n",
 640                         url, rc, 0 );
 641 #endif
 642                 return rc;
 643         }
 644
 645         l.sl_url.bv_val = NULL;
 646         l.sl_is_mute = 0;
 647
 648 #ifndef HAVE_TLS
 649         if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
 650 #ifdef NEW_LOGGING
 651                 LDAP_LOG( CONNECTION, INFO,
 652                            "slap_open_listener: TLS is not supported (%s)\n", url, 0, 0 );
 653 #else
 654                 Debug( LDAP_DEBUG_ANY,
 655                         "daemon: TLS not supported (%s)\n",
 656                         url, 0, 0 );
 657 #endif
 658                 ldap_free_urldesc( lud );
 659                 return -1;
 660         }
 661
 662         if(! lud->lud_port ) {
 663                 lud->lud_port = LDAP_PORT;
 664         }
 665
 666 #else
 667         l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
 668
 669         if(! lud->lud_port ) {
 670                 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
 671         }
 672 #endif
 673
 674         port = (unsigned short) lud->lud_port;
 675
 676         tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
 677         if ( tmp == LDAP_PROTO_IPC ) {
 678 #ifdef LDAP_PF_LOCAL
 679                 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
 680                         err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
 681                 } else {
 682                         err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
 683                 }
 684 #else
 685
 686 #ifdef NEW_LOGGING
 687                 LDAP_LOG( CONNECTION, INFO,
 688                         "slap_open_listener: URL scheme is not supported: %s\n", url, 0, 0 );
 689 #else
 690                 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
 691                         url, 0, 0);
 692 #endif
 693                 ldap_free_urldesc( lud );
 694                 return -1;
 695 #endif
 696         } else {
 697                 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
 698                         || strcmp(lud->lud_host, "*") == 0 )
 699                 {
 700                         err = slap_get_listener_addresses(NULL, port, &sal);
 701                 } else {
 702                         err = slap_get_listener_addresses(lud->lud_host, port, &sal);
 703                 }
 704         }
 705 #ifdef LDAP_CONNECTIONLESS
 706         l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
 707 #endif
 708
 709 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
 710         if ( lud->lud_exts ) {
 711                 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
 712         } else {
 713                 l.sl_perms = S_IRWXU | S_IRWXO;
 714         }
 715 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
 716
 717         ldap_free_urldesc( lud );
 718         if ( err ) {
 719                 return -1;
 720         }
 721
 722         /* If we got more than one address returned, we need to make space
 723          * for it in the slap_listeners array.
 724          */
 725         for ( num=0; sal[num]; num++ );
 726         if ( num > 1 ) {
 727                 *listeners += num-1;
 728                 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
 729         }
 730
 731         psal = sal;
 732         while ( *sal != NULL ) {
 733                 char *af;
 734                 switch( (*sal)->sa_family ) {
 735                 case AF_INET:
 736                         af = "IPv4";
 737                         break;
 738 #ifdef LDAP_PF_INET6
 739                 case AF_INET6:
 740                         af = "IPv6";
 741                         break;
 742 #endif
 743 #ifdef LDAP_PF_LOCAL
 744                 case AF_LOCAL:
 745                         af = "Local";
 746                         break;
 747 #endif
 748                 default:
 749                         sal++;
 750                         continue;
 751                 }
 752 #ifdef LDAP_CONNECTIONLESS
 753                 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
 754 #endif
 755                 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
 756                 if ( l.sl_sd == AC_SOCKET_INVALID ) {
 757                         int err = sock_errno();
 758 #ifdef NEW_LOGGING
 759                         LDAP_LOG( CONNECTION, ERR,
 760                                 "slap_open_listener: %s socket() failed errno=%d (%s)\n",
 761                                 af, err, sock_errstr(err) );
 762 #else
 763                         Debug( LDAP_DEBUG_ANY,
 764                                 "daemon: %s socket() failed errno=%d (%s)\n",
 765                                 af, err, sock_errstr(err) );
 766 #endif
 767                         sal++;
 768                         continue;
 769                 }
 770 #ifndef HAVE_WINSOCK
 771                 if ( l.sl_sd >= dtblsize ) {
 772 #ifdef NEW_LOGGING
 773                         LDAP_LOG( CONNECTION, ERR,
 774                                 "slap_open_listener: listener descriptor %ld is too "
 775                                 "great %ld\n", (long)l.sl_sd, (long)dtblsize, 0 );
 776 #else
 777                         Debug( LDAP_DEBUG_ANY,
 778                                 "daemon: listener descriptor %ld is too great %ld\n",
 779                                 (long) l.sl_sd, (long) dtblsize, 0 );
 780 #endif
 781                         tcp_close( l.sl_sd );
 782                         sal++;
 783                         continue;
 784                 }
 785 #endif
 786 #ifdef LDAP_PF_LOCAL
 787                 if ( (*sal)->sa_family == AF_LOCAL ) {
 788                         unlink ( ((struct sockaddr_un *)*sal)->sun_path );
 789                 } else
 790 #endif
 791                 {
 792 #ifdef SO_REUSEADDR
 793                         /* enable address reuse */
 794                         tmp = 1;
 795                         rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
 796                                 (char *) &tmp, sizeof(tmp) );
 797                         if ( rc == AC_SOCKET_ERROR ) {
 798                                 int err = sock_errno();
 799 #ifdef NEW_LOGGING
 800                                 LDAP_LOG( CONNECTION, INFO,
 801                                         "slap_open_listener: setsockopt( %ld, SO_REUSEADDR ) "
 802                                         "failed errno %d (%s)\n", (long)l.sl_sd, err,
 803                                         sock_errstr(err) );
 804 #else
 805                                 Debug( LDAP_DEBUG_ANY,
 806                                        "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
 807                                        (long) l.sl_sd, err, sock_errstr(err) );
 808 #endif
 809                         }
 810 #endif
 811                 }
 812
 813                 switch( (*sal)->sa_family ) {
 814                 case AF_INET:
 815                         addrlen = sizeof(struct sockaddr_in);
 816                         break;
 817 #ifdef LDAP_PF_INET6
 818                 case AF_INET6:
 819 #ifdef IPV6_V6ONLY
 820                         /* Try to use IPv6 sockets for IPv6 only */
 821                         tmp = 1;
 822                         rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
 823                                          (char *) &tmp, sizeof(tmp) );
 824                         if ( rc == AC_SOCKET_ERROR ) {
 825                                 int err = sock_errno();
 826 #ifdef NEW_LOGGING
 827                                 LDAP_LOG( CONNECTION, INFO,
 828                                            "slap_open_listener: setsockopt( %ld, IPV6_V6ONLY ) failed errno %d (%s)\n",
 829                                            (long)l.sl_sd, err, sock_errstr(err) );
 830 #else
 831                                 Debug( LDAP_DEBUG_ANY,
 832                                        "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
 833                                        (long) l.sl_sd, err, sock_errstr(err) );
 834 #endif
 835                         }
 836 #endif
 837                         addrlen = sizeof(struct sockaddr_in6);
 838                         break;
 839 #endif
 840 #ifdef LDAP_PF_LOCAL
 841                 case AF_LOCAL:
 842                         addrlen = sizeof(struct sockaddr_un);
 843                         break;
 844 #endif
 845                 }
 846
 847                 if (bind(l.sl_sd, *sal, addrlen)) {
 848                         err = sock_errno();
 849 #ifdef NEW_LOGGING
 850                 LDAP_LOG( CONNECTION, INFO,
 851                         "slap_open_listener: bind(%ld) failed errno=%d (%s)\n",
 852                         (long)l.sl_sd, err, sock_errstr(err) );
 853 #else
 854                 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
 855                        (long) l.sl_sd, err, sock_errstr(err) );
 856 #endif
 857                         tcp_close( l.sl_sd );
 858                         sal++;
 859                         continue;
 860                 }
 861
 862         switch ( (*sal)->sa_family ) {
 863 #ifdef LDAP_PF_LOCAL
 864         case AF_LOCAL: {
 865                 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
 866 #if 0 /* don't muck with socket perms */
 867                 if ( chmod( addr, l.sl_perms ) < 0 && crit ) {
 868                         int err = sock_errno();
 869 #ifdef NEW_LOGGING
 870                         LDAP_LOG( CONNECTION, INFO,
 871                                 "slap_open_listener: fchmod(%ld) failed errno=%d (%s)\n",
 872                                 (long)l.sl_sd, err, sock_errstr(err) );
 873 #else
 874                         Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
 875                                (long) l.sl_sd, err, sock_errstr(err) );
 876 #endif
 877                         tcp_close( l.sl_sd );
 878                         slap_free_listener_addresses(psal);
 879                         return -1;
 880                 }
 881 #endif
 882                 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
 883                 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
 884                 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
 885                                 "PATH=%s", addr );
 886         } break;
 887 #endif /* LDAP_PF_LOCAL */
 888
 889         case AF_INET: {
 890                 char *s;
 891 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
 892                 char addr[INET_ADDRSTRLEN];
 893                 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
 894                            addr, sizeof(addr) );
 895                 s = addr;
 896 #else
 897                 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
 898 #endif
 899                 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
 900                 l.sl_name.bv_val = ber_memalloc( sizeof("IP=255.255.255.255:65535") );
 901                 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
 902                         "IP=%s:%d",
 903                          s != NULL ? s : SLAP_STRING_UNKNOWN, port );
 904                 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
 905         } break;
 906
 907 #ifdef LDAP_PF_INET6
 908         case AF_INET6: {
 909                 char addr[INET6_ADDRSTRLEN];
 910                 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
 911                            addr, sizeof addr);
 912                 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
 913                 l.sl_name.bv_len = strlen(addr) + sizeof("IP= 65535");
 914                 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
 915                 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=%s %d",
 916                                 addr, port );
 917                 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
 918         } break;
 919 #endif /* LDAP_PF_INET6 */
 920
 921         default:
 922 #ifdef NEW_LOGGING
 923                 LDAP_LOG( CONNECTION, INFO,
 924                         "slap_open_listener: unsupported address family (%d)\n",
 925                         (int)(*sal)->sa_family, 0, 0 );
 926 #else
 927                 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
 928                         (int) (*sal)->sa_family, 0, 0 );
 929 #endif
 930                 break;
 931         }
 932
 933         AC_MEMCPY(&l.sl_sa, *sal, addrlen);
 934         ber_str2bv( url, 0, 1, &l.sl_url);
 935         li = ch_malloc( sizeof( Listener ) );
 936         *li = l;
 937         slap_listeners[*cur] = li;
 938         (*cur)++;
 939         sal++;
 940
 941         } /* while ( *sal != NULL ) */
 942
 943         slap_free_listener_addresses(psal);
 944
 945         if ( l.sl_url.bv_val == NULL )
 946         {
 947 #ifdef NEW_LOGGING
 948                 LDAP_LOG( CONNECTION, RESULTS,
 949                         "slap_open_listener: failed on %s\n", url, 0, 0 );
 950 #else
 951                 Debug( LDAP_DEBUG_TRACE,
 952                         "slap_open_listener: failed on %s\n", url, 0, 0 );
 953 #endif
 954                 return -1;
 955         }
 956
 957 #ifdef NEW_LOGGING
 958         LDAP_LOG( CONNECTION, RESULTS,
 959                 "slap_open_listener: daemon initialized %s\n",
 960                 l.sl_url.bv_val, 0, 0 );
 961 #else
 962         Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
 963                 l.sl_url.bv_val, 0, 0 );
 964 #endif
 965         return 0;
 966 }
 967
 968 static int sockinit(void);
 969 static int sockdestroy(void);
 970
 971 int slapd_daemon_init( const char *urls )
 972 {
 973         int i, j, n, rc;
 974         char **u;
 975
 976 #ifdef NEW_LOGGING
 977         LDAP_LOG( CONNECTION, ARGS,
 978                 "slapd_daemon_init: %s\n", urls ? urls : "<null>", 0, 0 );
 979 #else
 980         Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
 981                 urls ? urls : "<null>", 0, 0 );
 982 #endif
 983         if( (rc = sockinit()) != 0 ) {
 984                 return rc;
 985         }
 986
 987 #ifdef HAVE_SYSCONF
 988         dtblsize = sysconf( _SC_OPEN_MAX );
 989 #elif HAVE_GETDTABLESIZE
 990         dtblsize = getdtablesize();
 991 #else
 992         dtblsize = FD_SETSIZE;
 993 #endif
 994
 995 #ifdef FD_SETSIZE
 996         if(dtblsize > FD_SETSIZE) {
 997                 dtblsize = FD_SETSIZE;
 998         }
 999 #endif  /* !FD_SETSIZE */
1000
1001         /* open a pipe (or something equivalent connected to itself).
1002          * we write a byte on this fd whenever we catch a signal. The main
1003          * loop will be select'ing on this socket, and will wake up when
1004          * this byte arrives.
1005          */
1006         if( (rc = lutil_pair( wake_sds )) < 0 ) {
1007 #ifdef NEW_LOGGING
1008                 LDAP_LOG( CONNECTION, ERR,
1009                         "slap_daemon_init: lutil_pair() failed rc=%d\n", rc, 0, 0);
1010 #else
1011                 Debug( LDAP_DEBUG_ANY,
1012                         "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
1013 #endif
1014                 return rc;
1015         }
1016
1017         FD_ZERO( &slap_daemon.sd_readers );
1018         FD_ZERO( &slap_daemon.sd_writers );
1019
1020         if( urls == NULL ) {
1021                 urls = "ldap:///";
1022         }
1023
1024         u = ldap_str2charray( urls, " " );
1025
1026         if( u == NULL || u[0] == NULL ) {
1027 #ifdef NEW_LOGGING
1028                 LDAP_LOG( CONNECTION, ERR,
1029                         "slap_daemon_init: no urls (%s) provided.\n", urls, 0, 0 );
1030 #else
1031                 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1032                         urls, 0, 0 );
1033 #endif
1034                 return -1;
1035         }
1036
1037         for( i=0; u[i] != NULL; i++ ) {
1038 #ifdef NEW_LOGGING
1039                 LDAP_LOG( CONNECTION, DETAIL1,
1040                         "slap_daemon_init: listen on %s\n", u[i], 0, 0 );
1041 #else
1042                 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1043                         u[i], 0, 0 );
1044 #endif
1045         }
1046
1047         if( i == 0 ) {
1048 #ifdef NEW_LOGGING
1049                 LDAP_LOG( CONNECTION, INFO,
1050                          "slap_daemon_init: no listeners to open (%s)\n", urls, 0, 0 );
1051 #else
1052                 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1053                         urls, 0, 0 );
1054 #endif
1055                 ldap_charray_free( u );
1056                 return -1;
1057         }
1058
1059 #ifdef NEW_LOGGING
1060         LDAP_LOG( CONNECTION, INFO,
1061                 "slap_daemon_init: %d listeners to open...\n", i, 0, 0 );
1062 #else
1063         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1064                 i, 0, 0 );
1065 #endif
1066         slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1067
1068         for(n = 0, j = 0; u[n]; n++ ) {
1069                 if ( slap_open_listener( u[n], &i, &j ) ) {
1070                         ldap_charray_free( u );
1071                         return -1;
1072                 }
1073         }
1074         slap_listeners[j] = NULL;
1075
1076 #ifdef NEW_LOGGING
1077         LDAP_LOG( CONNECTION, DETAIL1,
1078                 "slap_daemon_init: %d listeners opened\n", i, 0, 0 );
1079 #else
1080         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1081                 i, 0, 0 );
1082 #endif
1083
1084 #ifdef HAVE_SLP
1085         slapd_slp_init( urls );
1086         slapd_slp_reg();
1087 #endif
1088
1089         ldap_charray_free( u );
1090         ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1091         return !i;
1092 }
1093
1094
1095 int
1096 slapd_daemon_destroy(void)
1097 {
1098         connections_destroy();
1099         tcp_close( wake_sds[1] );
1100         tcp_close( wake_sds[0] );
1101         sockdestroy();
1102
1103 #ifdef HAVE_SLP
1104         slapd_slp_dereg();
1105         slapd_slp_deinit();
1106 #endif
1107
1108         return 0;
1109 }
1110
1111
1112 static void
1113 close_listeners(
1114         int remove
1115 )
1116 {
1117         int l;
1118
1119         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1120                 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1121                         if ( remove )
1122                                 slapd_remove( slap_listeners[l]->sl_sd, 0 );
1123 #ifdef LDAP_PF_LOCAL
1124                         if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1125                                 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1126                         }
1127 #endif /* LDAP_PF_LOCAL */
1128                         slapd_close( slap_listeners[l]->sl_sd );
1129                 }
1130                 if ( slap_listeners[l]->sl_url.bv_val )
1131                         ber_memfree( slap_listeners[l]->sl_url.bv_val );
1132                 if ( slap_listeners[l]->sl_name.bv_val )
1133                         ber_memfree( slap_listeners[l]->sl_name.bv_val );
1134                 free ( slap_listeners[l] );
1135                 slap_listeners[l] = NULL;
1136         }
1137 }
1138
1139
1140 static void *
1141 slapd_daemon_task(
1142         void *ptr
1143 )
1144 {
1145         int l;
1146         time_t  last_idle_check = 0;
1147         struct timeval idle;
1148
1149 #define SLAPD_IDLE_CHECK_LIMIT 4
1150
1151         if ( global_idletimeout > 0 ) {
1152                 last_idle_check = slap_get_time();
1153                 /* Set the select timeout.
1154                  * Don't just truncate, preserve the fractions of
1155                  * seconds to prevent sleeping for zero time.
1156                  */
1157                 idle.tv_sec = global_idletimeout/SLAPD_IDLE_CHECK_LIMIT;
1158                 idle.tv_usec = global_idletimeout - idle.tv_sec * SLAPD_IDLE_CHECK_LIMIT;
1159                 idle.tv_usec *= 1000000 / SLAPD_IDLE_CHECK_LIMIT;
1160         } else {
1161                 idle.tv_sec = 0;
1162                 idle.tv_usec = 0;
1163         }
1164
1165         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1166                 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1167                         continue;
1168 #ifdef LDAP_CONNECTIONLESS
1169                 /* Since this is connectionless, the data port is the
1170                  * listening port. The listen() and accept() calls
1171                  * are unnecessary.
1172                  */
1173                 if ( slap_listeners[l]->sl_is_udp ) {
1174                         slapd_add( slap_listeners[l]->sl_sd );
1175                         continue;
1176                 }
1177 #endif
1178
1179                 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1180                         int err = sock_errno();
1181
1182 #ifdef LDAP_PF_INET6
1183                         /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1184                          * we are already listening to in6addr_any, then we want to ignore
1185                          * this and continue.
1186                          */
1187                         if ( err == EADDRINUSE ) {
1188                                 int i;
1189                                 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1190                                 struct sockaddr_in6 sa6;
1191
1192                                 if ( sa.sin_family == AF_INET &&
1193                                      sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1194                                         for ( i = 0 ; i < l; i++ ) {
1195                                                 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1196                                                 if ( sa6.sin6_family == AF_INET6 &&
1197                                                      !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1198                                                         break;
1199                                         }
1200
1201                                         if ( i < l ) {
1202                                                 /* We are already listening to in6addr_any */
1203 #ifdef NEW_LOGGING
1204                                                 LDAP_LOG(CONNECTION, WARNING,
1205                                                            "slapd_daemon_task: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n", 0, 0, 0 );
1206 #else
1207                                                 Debug( LDAP_DEBUG_CONNS,
1208                                                        "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1209                                                        0, 0, 0 );
1210 #endif
1211                                                 slapd_close( slap_listeners[l]->sl_sd );
1212                                                 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1213                                                 continue;
1214                                         }
1215                                 }
1216                         }
1217 #endif
1218 #ifdef NEW_LOGGING
1219                         LDAP_LOG( CONNECTION, ERR,
1220                                 "slapd_daemon_task: listen( %s, 5 ) failed errno=%d (%s)\n",
1221                                 slap_listeners[l]->sl_url.bv_val, err, sock_errstr(err) );
1222 #else
1223                         Debug( LDAP_DEBUG_ANY,
1224                                 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1225                                         slap_listeners[l]->sl_url.bv_val, err,
1226                                         sock_errstr(err) );
1227 #endif
1228                         return( (void*)-1 );
1229                 }
1230
1231                 slapd_add( slap_listeners[l]->sl_sd );
1232         }
1233
1234 #ifdef HAVE_NT_SERVICE_MANAGER
1235         if ( started_event != NULL ) {
1236                 ldap_pvt_thread_cond_signal( &started_event );
1237         }
1238 #endif
1239         /* initialization complete. Here comes the loop. */
1240
1241         while ( !slapd_shutdown ) {
1242                 ber_socket_t i;
1243                 int ns;
1244                 int at;
1245                 ber_socket_t nfds;
1246 #define SLAPD_EBADF_LIMIT 16
1247                 int ebadf = 0;
1248
1249                 time_t  now;
1250
1251                 fd_set                  readfds;
1252                 fd_set                  writefds;
1253                 Sockaddr                from;
1254
1255                 struct timeval          tv;
1256                 struct timeval          *tvp;
1257
1258                 struct timeval          *cat;
1259                 time_t                          tdelta = 1;
1260                 struct re_s*            rtask;
1261                 now = slap_get_time();
1262
1263                 if( ( global_idletimeout > 0 ) &&
1264                         difftime( last_idle_check +
1265                         global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1266                         connections_timeout_idle( now );
1267                         last_idle_check = now;
1268                 }
1269                 tv = idle;
1270
1271 #ifdef SIGHUP
1272                 if( slapd_gentle_shutdown ) {
1273                         ber_socket_t active;
1274
1275                         if( slapd_gentle_shutdown == 1 ) {
1276                                 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1277                                 close_listeners( 1 );
1278                                 global_restrictops |= SLAP_RESTRICT_OP_WRITES;
1279                                 slapd_gentle_shutdown = 2;
1280                         }
1281
1282                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1283                         active = slap_daemon.sd_nactives;
1284                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1285                         if( active == 0 ) {
1286                                 slapd_shutdown = 2;
1287                                 break;
1288                         }
1289                 }
1290 #endif
1291
1292                 FD_ZERO( &writefds );
1293                 FD_ZERO( &readfds );
1294
1295                 at = 0;
1296
1297                 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1298
1299 #ifdef FD_SET_MANUAL_COPY
1300                 for( s = 0; s < nfds; s++ ) {
1301                         if(FD_ISSET( &slap_sd_readers, s )) {
1302                                 FD_SET( s, &readfds );
1303                         }
1304                         if(FD_ISSET( &slap_sd_writers, s )) {
1305                                 FD_SET( s, &writefds );
1306                         }
1307                 }
1308 #else
1309                 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
1310                 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
1311 #endif
1312                 assert(!FD_ISSET(wake_sds[0], &readfds));
1313                 FD_SET( wake_sds[0], &readfds );
1314
1315                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1316                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1317                                 continue;
1318                         if ( slap_listeners[l]->sl_is_mute )
1319                                 FD_CLR( slap_listeners[l]->sl_sd, &readfds );
1320                         else
1321                         if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds))
1322                             FD_SET( slap_listeners[l]->sl_sd, &readfds );
1323                 }
1324
1325 #ifndef HAVE_WINSOCK
1326                 nfds = slap_daemon.sd_nfds;
1327 #else
1328                 nfds = dtblsize;
1329 #endif
1330                 if ( global_idletimeout && slap_daemon.sd_nactives )
1331                         at = 1;
1332
1333                 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1334
1335                 if ( !at ) {
1336                         at = ldap_pvt_thread_pool_backload(&connection_pool) -
1337                                  ldap_pvt_runqueue_persistent_backload( &syncrepl_rq );
1338                 }
1339
1340                 if ( at
1341 #if defined(HAVE_YIELDING_SELECT) || defined(NO_THREADS)
1342                         &&  ( tv.tv_sec || tv.tv_usec )
1343 #endif
1344                         )
1345                         tvp = &tv;
1346                 else
1347                         tvp = NULL;
1348
1349                 ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
1350                 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1351                 while ( cat && cat->tv_sec && cat->tv_sec <= now ) {
1352                         if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
1353                                 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask );
1354                         } else {
1355                                 ldap_pvt_runqueue_runtask( &syncrepl_rq, rtask );
1356                                 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask );
1357                                 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1358                                 ldap_pvt_thread_pool_submit( &connection_pool,
1359                                                                                         rtask->routine, (void *) rtask );
1360                         }
1361                         rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1362                 }
1363                 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1364                 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1365
1366                 if ( cat != NULL ) {
1367                         time_t diff = difftime( cat->tv_sec, now );
1368                         if ( diff == 0 )
1369                                 diff = tdelta;
1370                         if ( tvp == NULL || diff < tv.tv_sec ) {
1371                                 tv.tv_sec = diff;
1372                                 tv.tv_usec = 0;
1373                                 tvp = &tv;
1374                         }
1375                 }
1376
1377                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1378                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID ||
1379                             slap_listeners[l]->sl_is_mute )
1380                                 continue;
1381
1382 #ifdef NEW_LOGGING
1383                         LDAP_LOG( CONNECTION, DETAIL1,
1384                                 "slapd_daemon_task: select: listen=%d "
1385                                 "active_threads=%d tvp=%s\n",
1386                                 slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
1387 #else
1388                         Debug( LDAP_DEBUG_CONNS,
1389                                 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1390                                         slap_listeners[l]->sl_sd, at,
1391                                         tvp == NULL ? "NULL" : "zero" );
1392 #endif
1393                 }
1394
1395                 switch(ns = select( nfds, &readfds,
1396 #ifdef HAVE_WINSOCK
1397                         /* don't pass empty fd_set */
1398                         ( writefds.fd_count > 0 ? &writefds : NULL ),
1399 #else
1400                         &writefds,
1401 #endif
1402                         NULL, tvp ))
1403                 {
1404                 case -1: {      /* failure - try again */
1405                                 int err = sock_errno();
1406
1407                                 if( err == EBADF
1408 #ifdef WSAENOTSOCK
1409                                         /* you'd think this would be EBADF */
1410                                         || err == WSAENOTSOCK
1411 #endif
1412                                 ) {
1413                                         if (++ebadf < SLAPD_EBADF_LIMIT)
1414                                                 continue;
1415                                 }
1416
1417                                 if( err != EINTR ) {
1418 #ifdef NEW_LOGGING
1419                                         LDAP_LOG( CONNECTION, INFO,
1420                                                 "slapd_daemon_task: select failed (%d): %s\n",
1421                                                 err, sock_errstr(err), 0 );
1422 #else
1423                                         Debug( LDAP_DEBUG_CONNS,
1424                                                 "daemon: select failed (%d): %s\n",
1425                                                 err, sock_errstr(err), 0 );
1426 #endif
1427                                         slapd_shutdown = 2;
1428                                 }
1429                         }
1430                         continue;
1431
1432                 case 0:         /* timeout - let threads run */
1433                         ebadf = 0;
1434 #ifdef NEW_LOGGING
1435                         LDAP_LOG( CONNECTION, DETAIL2,
1436                                    "slapd_daemon_task: select timeout - yielding\n", 0, 0, 0 );
1437 #else
1438                         Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1439                             0, 0, 0 );
1440 #endif
1441
1442                         ldap_pvt_thread_yield();
1443                         continue;
1444
1445                 default:        /* something happened - deal with it */
1446                         if( slapd_shutdown ) continue;
1447
1448                         ebadf = 0;
1449 #ifdef NEW_LOGGING
1450                         LDAP_LOG( CONNECTION, DETAIL2,
1451                                    "slapd_daemon_task: activity on %d descriptors\n", ns, 0, 0 );
1452 #else
1453                         Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1454                                 ns, 0, 0 );
1455 #endif
1456                         /* FALL THRU */
1457                 }
1458
1459                 if( FD_ISSET( wake_sds[0], &readfds ) ) {
1460                         char c[BUFSIZ];
1461                         tcp_read( wake_sds[0], c, sizeof(c) );
1462 #if defined(NO_THREADS) || defined(HAVE_GNU_PTH)
1463                         waking = 0;
1464 #endif
1465                         continue;
1466                 }
1467
1468                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1469                         ber_socket_t s;
1470                         socklen_t len = sizeof(from);
1471                         long id;
1472                         slap_ssf_t ssf = 0;
1473                         char *authid = NULL;
1474 #ifdef SLAPD_RLOOKUPS
1475                         char hbuf[NI_MAXHOST];
1476 #endif
1477
1478                         char    *dnsname = NULL;
1479                         char    *peeraddr = NULL;
1480 #ifdef LDAP_PF_LOCAL
1481                         char    peername[MAXPATHLEN + sizeof("PATH=")];
1482 #elif defined(LDAP_PF_INET6)
1483                         char    peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1484 #else
1485                         char    peername[sizeof("IP=255.255.255.255:65336")];
1486 #endif /* LDAP_PF_LOCAL */
1487
1488                         peername[0] = '\0';
1489
1490                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1491                                 continue;
1492
1493                         if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
1494                                 continue;
1495
1496 #ifdef LDAP_CONNECTIONLESS
1497                         if ( slap_listeners[l]->sl_is_udp ) {
1498                                 /* The first time we receive a query, we set this
1499                                  * up as a "connection". It remains open for the life
1500                                  * of the slapd.
1501                                  */
1502                                 if ( slap_listeners[l]->sl_is_udp < 2 ) {
1503                                     id = connection_init(
1504                                         slap_listeners[l]->sl_sd,
1505                                         slap_listeners[l], "", "",
1506                                         2, ssf, authid );
1507                                     slap_listeners[l]->sl_is_udp++;
1508                                 }
1509                                 continue;
1510                         }
1511 #endif
1512
1513                         /* Don't need to look at this in the data loops */
1514                         FD_CLR( slap_listeners[l]->sl_sd, &readfds );
1515                         FD_CLR( slap_listeners[l]->sl_sd, &writefds );
1516
1517                         s = accept( slap_listeners[l]->sl_sd,
1518                                 (struct sockaddr *) &from, &len );
1519                         if ( s == AC_SOCKET_INVALID ) {
1520                                 int err = sock_errno();
1521
1522                                 if(
1523 #ifdef EMFILE
1524                                     err == EMFILE ||
1525 #endif
1526 #ifdef ENFILE
1527                                     err == ENFILE ||
1528 #endif
1529                                     0 )
1530                                 {
1531                                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1532                                         emfile++;
1533                                         /* Stop listening until an existing session closes */
1534                                         slap_listeners[l]->sl_is_mute = 1;
1535                                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1536                                 }
1537
1538 #ifdef NEW_LOGGING
1539                                 LDAP_LOG( CONNECTION, ERR,
1540                                         "slapd_daemon_task: accept(%ld) failed errno=%d (%s)\n",
1541                                         (long)slap_listeners[l]->sl_sd,
1542                                         err, sock_errstr(err) );
1543 #else
1544                                 Debug( LDAP_DEBUG_ANY,
1545                                         "daemon: accept(%ld) failed errno=%d (%s)\n",
1546                                         (long) slap_listeners[l]->sl_sd, err,
1547                                         sock_errstr(err) );
1548 #endif
1549                                 ldap_pvt_thread_yield();
1550                                 continue;
1551                         }
1552
1553 #ifndef HAVE_WINSOCK
1554                         /* make sure descriptor number isn't too great */
1555                         if ( s >= dtblsize ) {
1556 #ifdef NEW_LOGGING
1557                                 LDAP_LOG( CONNECTION, ERR,
1558                                    "slapd_daemon_task: %ld beyond descriptor table size %ld\n",
1559                                    (long)s, (long)dtblsize, 0 );
1560 #else
1561                                 Debug( LDAP_DEBUG_ANY,
1562                                         "daemon: %ld beyond descriptor table size %ld\n",
1563                                         (long) s, (long) dtblsize, 0 );
1564 #endif
1565
1566                                 slapd_close(s);
1567                                 ldap_pvt_thread_yield();
1568                                 continue;
1569                         }
1570 #endif
1571
1572 #ifdef LDAP_DEBUG
1573                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1574
1575                         /* newly accepted stream should not be in any of the FD SETS */
1576                         assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
1577                         assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
1578                         assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
1579
1580                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1581 #endif
1582
1583 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1584 #ifdef LDAP_PF_LOCAL
1585                         /* for IPv4 and IPv6 sockets only */
1586                         if ( from.sa_addr.sa_family != AF_LOCAL )
1587 #endif /* LDAP_PF_LOCAL */
1588                         {
1589                                 int rc;
1590                                 int tmp;
1591 #ifdef SO_KEEPALIVE
1592                                 /* enable keep alives */
1593                                 tmp = 1;
1594                                 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1595                                         (char *) &tmp, sizeof(tmp) );
1596                                 if ( rc == AC_SOCKET_ERROR ) {
1597                                         int err = sock_errno();
1598 #ifdef NEW_LOGGING
1599                                         LDAP_LOG( CONNECTION, ERR,
1600                                                 "slapd_daemon_task: setsockopt( %ld, SO_KEEPALIVE)"
1601                                            " failed errno=%d (%s)\n",
1602                                                 (long)s, err, sock_errstr(err) );
1603 #else
1604                                         Debug( LDAP_DEBUG_ANY,
1605                                                 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1606                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1607 #endif
1608                                 }
1609 #endif
1610 #ifdef TCP_NODELAY
1611                                 /* enable no delay */
1612                                 tmp = 1;
1613                                 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1614                                         (char *)&tmp, sizeof(tmp) );
1615                                 if ( rc == AC_SOCKET_ERROR ) {
1616                                         int err = sock_errno();
1617 #ifdef NEW_LOGGING
1618                                         LDAP_LOG( CONNECTION, ERR,
1619                                                 "slapd_daemon_task: setsockopt( %ld, "
1620                                                 "TCP_NODELAY) failed errno=%d (%s)\n",
1621                                                 (long)s, err, sock_errstr(err) );
1622 #else
1623                                         Debug( LDAP_DEBUG_ANY,
1624                                                 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1625                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1626 #endif
1627                                 }
1628 #endif
1629                         }
1630 #endif
1631
1632 #ifdef NEW_LOGGING
1633                         LDAP_LOG( CONNECTION, DETAIL1,
1634                                 "slapd_daemon_task: new connection on %ld\n", (long)s, 0, 0 );
1635 #else
1636                         Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1637                                 (long) s, 0, 0 );
1638 #endif
1639                         switch ( from.sa_addr.sa_family ) {
1640 #  ifdef LDAP_PF_LOCAL
1641                         case AF_LOCAL:
1642                                 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1643                                 ssf = LDAP_PVT_SASL_LOCAL_SSF;
1644                                 {
1645                                         uid_t uid;
1646                                         gid_t gid;
1647
1648                                         if( getpeereid( s, &uid, &gid ) == 0 ) {
1649                                                 authid = ch_malloc(
1650                                                         sizeof("uidnumber=4294967295+gidnumber=4294967295,"
1651                                                                 "cn=peercred,cn=external,cn=auth"));
1652                                                 sprintf(authid, "uidnumber=%d+gidnumber=%d,"
1653                                                         "cn=peercred,cn=external,cn=auth",
1654                                                         (int) uid, (int) gid);
1655                                         }
1656                                 }
1657                                 dnsname = "local";
1658                                 break;
1659 #endif /* LDAP_PF_LOCAL */
1660
1661 #  ifdef LDAP_PF_INET6
1662                         case AF_INET6:
1663                         if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1664                                 peeraddr = inet_ntoa( *((struct in_addr *)
1665                                                         &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1666                                 sprintf( peername, "IP=%s:%d",
1667                                          peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1668                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1669                         } else {
1670                                 char addr[INET6_ADDRSTRLEN];
1671
1672                                 peeraddr = (char *) inet_ntop( AF_INET6,
1673                                                       &from.sa_in6_addr.sin6_addr,
1674                                                       addr, sizeof addr );
1675                                 sprintf( peername, "IP=%s %d",
1676                                          peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1677                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1678                         }
1679                         break;
1680 #  endif /* LDAP_PF_INET6 */
1681
1682                         case AF_INET:
1683                         peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1684                         sprintf( peername, "IP=%s:%d",
1685                                 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1686                                 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1687                                 break;
1688
1689                         default:
1690                                 slapd_close(s);
1691                                 continue;
1692                         }
1693
1694                         if ( ( from.sa_addr.sa_family == AF_INET )
1695 #ifdef LDAP_PF_INET6
1696                                 || ( from.sa_addr.sa_family == AF_INET6 )
1697 #endif
1698                         ) {
1699 #ifdef SLAPD_RLOOKUPS
1700                                 if ( use_reverse_lookup ) {
1701                                         char *herr;
1702                                         if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
1703                                                 sizeof(hbuf), &herr ) == 0) {
1704                                                 ldap_pvt_str2lower( hbuf );
1705                                                 dnsname = hbuf;
1706                                         }
1707                                 }
1708 #else
1709                                 dnsname = NULL;
1710 #endif /* SLAPD_RLOOKUPS */
1711
1712 #ifdef HAVE_TCPD
1713                                 if ( !hosts_ctl("slapd",
1714                                                 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1715                                                 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1716                                                 SLAP_STRING_UNKNOWN ))
1717                                 {
1718                                         /* DENY ACCESS */
1719                                         Statslog( LDAP_DEBUG_STATS,
1720                                                 "fd=%ld DENIED from %s (%s)\n",
1721                                                 (long) s,
1722                                                 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1723                                                 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1724                                                 0, 0 );
1725                                         slapd_close(s);
1726                                         continue;
1727                                 }
1728 #endif /* HAVE_TCPD */
1729                         }
1730
1731                         id = connection_init(s,
1732                                 slap_listeners[l],
1733                                 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1734                                 peername,
1735 #ifdef HAVE_TLS
1736                                 slap_listeners[l]->sl_is_tls,
1737 #else
1738                                 0,
1739 #endif
1740                                 ssf,
1741                                 authid );
1742
1743                         if( authid ) ch_free(authid);
1744
1745                         if( id < 0 ) {
1746 #ifdef NEW_LOGGING
1747                                 LDAP_LOG( CONNECTION, INFO,
1748                                         "slapd_daemon_task: "
1749                                         "connection_init(%ld, %s, %s) "
1750                                         "failed.\n",
1751                                         (long)s, peername,
1752                                         slap_listeners[l]->sl_name.bv_val );
1753 #else
1754                                 Debug( LDAP_DEBUG_ANY,
1755                                         "daemon: connection_init(%ld, %s, %s) "
1756                                         "failed.\n",
1757                                         (long) s,
1758                                         peername,
1759                                         slap_listeners[l]->sl_name.bv_val );
1760 #endif
1761                                 slapd_close(s);
1762                                 continue;
1763                         }
1764
1765                         Statslog( LDAP_DEBUG_STATS,
1766                                 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
1767                                 id, (long) s,
1768                                 peername,
1769                                 slap_listeners[l]->sl_name.bv_val,
1770                                 0 );
1771
1772                         slapd_add( s );
1773                         continue;
1774                 }
1775
1776 #ifdef LDAP_DEBUG
1777 #ifdef NEW_LOGGING
1778                 LDAP_LOG( CONNECTION, DETAIL2,
1779                            "slapd_daemon_task: activity on ", 0, 0, 0 );
1780 #else
1781                 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1782 #endif
1783 #ifdef HAVE_WINSOCK
1784                 for ( i = 0; i < readfds.fd_count; i++ ) {
1785 #ifdef NEW_LOGGING
1786                         LDAP_LOG( CONNECTION, DETAIL2,
1787                                 " %d%s", readfds.fd_array[i], "r", 0, 0 );
1788 #else
1789                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1790                                 readfds.fd_array[i], "r", 0 );
1791 #endif
1792                 }
1793                 for ( i = 0; i < writefds.fd_count; i++ ) {
1794 #ifdef NEW_LOGGING
1795                         LDAP_LOG( CONNECTION, DETAIL2,
1796                                 " %d%s", writefds.fd_array[i], "w" , 0 );
1797 #else
1798                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1799                                 writefds.fd_array[i], "w", 0 );
1800 #endif
1801                 }
1802
1803 #else
1804                 for ( i = 0; i < nfds; i++ ) {
1805                         int     r, w;
1806
1807                         r = FD_ISSET( i, &readfds );
1808                         w = FD_ISSET( i, &writefds );
1809                         if ( r || w ) {
1810 #ifdef NEW_LOGGING
1811                                 LDAP_LOG( CONNECTION, DETAIL2,
1812                                         " %d%s%s", i, r ? "r" : "", w ? "w" : "" );
1813 #else
1814                                 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1815                                     r ? "r" : "", w ? "w" : "" );
1816 #endif
1817                         }
1818                 }
1819 #endif
1820 #ifdef NEW_LOGGING
1821                 LDAP_LOG( CONNECTION, DETAIL2, "\n", 0, 0, 0 );
1822 #else
1823                 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1824 #endif
1825
1826 #endif
1827
1828                 /* loop through the writers */
1829 #ifdef HAVE_WINSOCK
1830                 for ( i = 0; i < writefds.fd_count; i++ )
1831 #else
1832                 for ( i = 0; i < nfds; i++ )
1833 #endif
1834                 {
1835                         ber_socket_t wd;
1836 #ifdef HAVE_WINSOCK
1837                         wd = writefds.fd_array[i];
1838 #else
1839                         if( ! FD_ISSET( i, &writefds ) ) {
1840                                 continue;
1841                         }
1842                         wd = i;
1843 #endif
1844
1845 #ifdef NEW_LOGGING
1846                         LDAP_LOG( CONNECTION, DETAIL2,
1847                                 "slapd_daemon_task: write active on %d\n", wd, 0, 0 );
1848 #else
1849                         Debug( LDAP_DEBUG_CONNS,
1850                                 "daemon: write active on %d\n",
1851                                 wd, 0, 0 );
1852 #endif
1853                         /*
1854                          * NOTE: it is possible that the connection was closed
1855                          * and that the stream is now inactive.
1856                          * connection_write() must valid the stream is still
1857                          * active.
1858                          */
1859
1860                         if ( connection_write( wd ) < 0 ) {
1861                                 FD_CLR( (unsigned) wd, &readfds );
1862                                 slapd_close( wd );
1863                         }
1864                 }
1865
1866 #ifdef HAVE_WINSOCK
1867                 for ( i = 0; i < readfds.fd_count; i++ )
1868 #else
1869                 for ( i = 0; i < nfds; i++ )
1870 #endif
1871                 {
1872                         ber_socket_t rd;
1873 #ifdef HAVE_WINSOCK
1874                         rd = readfds.fd_array[i];
1875 #else
1876                         if( ! FD_ISSET( i, &readfds ) ) {
1877                                 continue;
1878                         }
1879                         rd = i;
1880 #endif
1881
1882 #ifdef NEW_LOGGING
1883                         LDAP_LOG( CONNECTION, DETAIL2,
1884                                 "slapd_daemon_task: read activity on %d\n", rd, 0, 0 );
1885 #else
1886                         Debug ( LDAP_DEBUG_CONNS,
1887                                 "daemon: read activity on %d\n", rd, 0, 0 );
1888 #endif
1889                         /*
1890                          * NOTE: it is possible that the connection was closed
1891                          * and that the stream is now inactive.
1892                          * connection_read() must valid the stream is still
1893                          * active.
1894                          */
1895
1896                         if ( connection_read( rd ) < 0 ) {
1897                                 slapd_close( rd );
1898                         }
1899                 }
1900                 ldap_pvt_thread_yield();
1901         }
1902
1903         if( slapd_shutdown == 1 ) {
1904 #ifdef NEW_LOGGING
1905                 LDAP_LOG( CONNECTION, CRIT,
1906                    "slapd_daemon_task: shutdown requested and initiated.\n", 0, 0, 0 );
1907 #else
1908                 Debug( LDAP_DEBUG_TRACE,
1909                         "daemon: shutdown requested and initiated.\n",
1910                         0, 0, 0 );
1911 #endif
1912
1913         } else if ( slapd_shutdown == 2 ) {
1914 #ifdef HAVE_NT_SERVICE_MANAGER
1915 #ifdef NEW_LOGGING
1916                         LDAP_LOG( CONNECTION, CRIT,
1917                            "slapd_daemon_task: shutdown initiated by Service Manager.\n",
1918                            0, 0, 0);
1919 #else
1920                         Debug( LDAP_DEBUG_TRACE,
1921                                "daemon: shutdown initiated by Service Manager.\n",
1922                                0, 0, 0);
1923 #endif
1924 #else /* !HAVE_NT_SERVICE_MANAGER */
1925 #ifdef NEW_LOGGING
1926                         LDAP_LOG( CONNECTION, CRIT,
1927                            "slapd_daemon_task: abnormal condition, "
1928                            "shutdown initiated.\n", 0, 0, 0 );
1929 #else
1930                         Debug( LDAP_DEBUG_TRACE,
1931                                "daemon: abnormal condition, shutdown initiated.\n",
1932                                0, 0, 0 );
1933 #endif
1934 #endif /* !HAVE_NT_SERVICE_MANAGER */
1935         } else {
1936 #ifdef NEW_LOGGING
1937                 LDAP_LOG( CONNECTION, CRIT,
1938                    "slapd_daemon_task: no active streams, shutdown initiated.\n",
1939                    0, 0, 0 );
1940 #else
1941                 Debug( LDAP_DEBUG_TRACE,
1942                        "daemon: no active streams, shutdown initiated.\n",
1943                        0, 0, 0 );
1944 #endif
1945         }
1946
1947         if( slapd_gentle_shutdown != 2 ) {
1948                 close_listeners ( 0 );
1949         }
1950
1951         free ( slap_listeners );
1952         slap_listeners = NULL;
1953
1954         if( !slapd_gentle_shutdown ) {
1955                 slapd_abrupt_shutdown = 1;
1956                 connections_shutdown();
1957         }
1958
1959 #ifdef NEW_LOGGING
1960         LDAP_LOG( CONNECTION, CRIT,
1961                 "slapd_daemon_task: shutdown waiting for %d threads to terminate.\n",
1962                 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1963 #else
1964         Debug( LDAP_DEBUG_ANY,
1965             "slapd shutdown: waiting for %d threads to terminate\n",
1966             ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1967 #endif
1968         ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1969
1970         return NULL;
1971 }
1972
1973
1974 int slapd_daemon( void )
1975 {
1976         int rc;
1977
1978         connections_init();
1979
1980 #define SLAPD_LISTENER_THREAD 1
1981 #if defined( SLAPD_LISTENER_THREAD )
1982         {
1983                 ldap_pvt_thread_t       listener_tid;
1984
1985                 /* listener as a separate THREAD */
1986                 rc = ldap_pvt_thread_create( &listener_tid,
1987                         0, slapd_daemon_task, NULL );
1988
1989                 if ( rc != 0 ) {
1990 #ifdef NEW_LOGGING
1991                         LDAP_LOG( CONNECTION, ERR,
1992                                 "slapd_daemon: listener ldap_pvt_thread_create failed (%d).\n",
1993                                 rc, 0, 0 );
1994 #else
1995                         Debug( LDAP_DEBUG_ANY,
1996                         "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
1997 #endif
1998                         return rc;
1999                 }
2000
2001                 /* wait for the listener thread to complete */
2002                 ldap_pvt_thread_join( listener_tid, (void *) NULL );
2003         }
2004 #else
2005         /* experimental code */
2006         slapd_daemon_task( NULL );
2007 #endif
2008
2009         return 0;
2010
2011 }
2012
2013 int sockinit(void)
2014 {
2015 #if defined( HAVE_WINSOCK2 )
2016     WORD wVersionRequested;
2017         WSADATA wsaData;
2018         int err;
2019
2020         wVersionRequested = MAKEWORD( 2, 0 );
2021
2022         err = WSAStartup( wVersionRequested, &wsaData );
2023         if ( err != 0 ) {
2024                 /* Tell the user that we couldn't find a usable */
2025                 /* WinSock DLL.                                  */
2026                 return -1;
2027         }
2028
2029         /* Confirm that the WinSock DLL supports 2.0.*/
2030         /* Note that if the DLL supports versions greater    */
2031         /* than 2.0 in addition to 2.0, it will still return */
2032         /* 2.0 in wVersion since that is the version we      */
2033         /* requested.                                        */
2034
2035         if ( LOBYTE( wsaData.wVersion ) != 2 ||
2036                 HIBYTE( wsaData.wVersion ) != 0 )
2037         {
2038             /* Tell the user that we couldn't find a usable */
2039             /* WinSock DLL.                                  */
2040             WSACleanup();
2041             return -1;
2042         }
2043
2044         /* The WinSock DLL is acceptable. Proceed. */
2045 #elif defined( HAVE_WINSOCK )
2046         WSADATA wsaData;
2047         if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
2048             return -1;
2049         }
2050 #endif
2051         return 0;
2052 }
2053
2054 int sockdestroy(void)
2055 {
2056 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2057         WSACleanup();
2058 #endif
2059         return 0;
2060 }
2061
2062 RETSIGTYPE
2063 slap_sig_shutdown( int sig )
2064 {
2065 #if 0
2066 #ifdef NEW_LOGGING
2067         LDAP_LOG( CONNECTION, CRIT,
2068                 "slap_sig_shutdown: signal %d\n", sig, 0, 0 );
2069 #else
2070         Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2071 #endif
2072 #endif
2073
2074         /*
2075          * If the NT Service Manager is controlling the server, we don't
2076          * want SIGBREAK to kill the server. For some strange reason,
2077          * SIGBREAK is generated when a user logs out.
2078          */
2079
2080 #if 0
2081 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2082         if (is_NT_Service && sig == SIGBREAK)
2083 #ifdef NEW_LOGGING
2084             LDAP_LOG( CONNECTION, CRIT,
2085                     "slap_sig_shutdown: SIGBREAK ignored.\n", 0, 0, 0 );
2086 #else
2087             Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n",
2088                   0, 0, 0);
2089 #endif
2090         else
2091 #endif
2092 #endif
2093 #ifdef SIGHUP
2094         if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
2095                 slapd_gentle_shutdown = 1;
2096         else
2097 #endif
2098         slapd_shutdown = 1;
2099
2100         WAKE_LISTENER(1);
2101
2102         /* reinstall self */
2103         (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2104 }
2105
2106 RETSIGTYPE
2107 slap_sig_wake( int sig )
2108 {
2109         WAKE_LISTENER(1);
2110
2111         /* reinstall self */
2112         (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2113 }
2114
2115
2116 void slapd_add_internal(ber_socket_t s) {
2117         slapd_add(s);
2118 }
2119
2120 Listener ** slapd_get_listeners(void) {
2121         return slap_listeners;
2122 }