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