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
  59 #if defined(NO_THREADS) || defined(HAVE_GNU_PTH)
  60 static int waking;
  61 #define WAKE_LISTENER(w) \
  62 ((w && !waking) ? tcp_write( wake_sds[1], "0", 1 ), waking=1 : 0)
  63 #else
  64 #define WAKE_LISTENER(w) \
  65 do { if (w) tcp_write( wake_sds[1], "0", 1 ); } while(0)
  66 #endif
  67
  68 #ifndef HAVE_WINSOCK
  69 static
  70 #endif
  71 volatile sig_atomic_t slapd_shutdown = 0, slapd_gentle_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         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 255         WAKE_LISTENER(wake || slapd_gentle_shutdown == 2);
 256 }
 257
 258 void slapd_clr_write(ber_socket_t s, int wake) {
 259         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 260
 261         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 262         FD_CLR( s, &slap_daemon.sd_writers );
 263
 264         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 265         WAKE_LISTENER(wake);
 266 }
 267
 268 void slapd_set_write(ber_socket_t s, int wake) {
 269         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 270
 271         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 272         if (!FD_ISSET(s, &slap_daemon.sd_writers))
 273             FD_SET( (unsigned) s, &slap_daemon.sd_writers );
 274
 275         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 276         WAKE_LISTENER(wake);
 277 }
 278
 279 void slapd_clr_read(ber_socket_t s, int wake) {
 280         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 281
 282         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 283         FD_CLR( s, &slap_daemon.sd_readers );
 284
 285         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 286         WAKE_LISTENER(wake);
 287 }
 288
 289 void slapd_set_read(ber_socket_t s, int wake) {
 290         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
 291
 292         assert( FD_ISSET( s, &slap_daemon.sd_actives) );
 293         if (!FD_ISSET(s, &slap_daemon.sd_readers))
 294             FD_SET( s, &slap_daemon.sd_readers );
 295
 296         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
 297         WAKE_LISTENER(wake);
 298 }
 299
 300 static void slapd_close(ber_socket_t s) {
 301 #ifdef NEW_LOGGING
 302         LDAP_LOG( CONNECTION, DETAIL1, "slapd_close: closing %ld\n", (long)s, 0, 0);
 303 #else
 304         Debug( LDAP_DEBUG_CONNS, "daemon: closing %ld\n",
 305                 (long) s, 0, 0 );
 306 #endif
 307         tcp_close(s);
 308 }
 309
 310 static void slap_free_listener_addresses(struct sockaddr **sal)
 311 {
 312         struct sockaddr **sap;
 313
 314         if (sal == NULL) {
 315                 return;
 316         }
 317
 318         for (sap = sal; *sap != NULL; sap++) {
 319                 ch_free(*sap);
 320         }
 321
 322         ch_free(sal);
 323 }
 324
 325 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
 326 static int get_url_perms(
 327         char    **exts,
 328         mode_t  *perms,
 329         int     *crit )
 330 {
 331         int     i;
 332
 333         assert( exts );
 334         assert( perms );
 335         assert( crit );
 336
 337         *crit = 0;
 338         for ( i = 0; exts[ i ]; i++ ) {
 339                 char    *type = exts[ i ];
 340                 int     c = 0;
 341
 342                 if ( type[ 0 ] == '!' ) {
 343                         c = 1;
 344                         type++;
 345                 }
 346
 347                 if ( strncasecmp( type, LDAPI_MOD_URLEXT "=", sizeof(LDAPI_MOD_URLEXT "=") - 1 ) == 0 ) {
 348                         char    *value = type
 349                                 + ( sizeof(LDAPI_MOD_URLEXT "=") - 1 );
 350                         mode_t  p = 0;
 351                         int     j;
 352
 353                         switch (strlen(value)) {
 354                         case 4:
 355                                 /* skip leading '0' */
 356                                 if ( value[ 0 ] != '0' ) {
 357                                         return LDAP_OTHER;
 358                                 }
 359                                 value++;
 360
 361                         case 3:
 362                                 for ( j = 0; j < 3; j++) {
 363                                         int     v;
 364
 365                                         v = value[ j ] - '0';
 366
 367                                         if ( v < 0 || v > 7 ) {
 368                                                 return LDAP_OTHER;
 369                                         }
 370
 371                                         p |= v << 3*(2-j);
 372                                 }
 373                                 break;
 374
 375                         case 10:
 376                                 for ( j = 1; j < 10; j++ ) {
 377                                         static mode_t   m[] = { 0,
 378                                                 S_IRUSR, S_IWUSR, S_IXUSR,
 379                                                 S_IRGRP, S_IWGRP, S_IXGRP,
 380                                                 S_IROTH, S_IWOTH, S_IXOTH
 381                                         };
 382                                         static char     c[] = "-rwxrwxrwx";
 383
 384                                         if ( value[ j ] == c[ j ] ) {
 385                                                 p |= m[ j ];
 386
 387                                         } else if ( value[ j ] != '-' ) {
 388                                                 return LDAP_OTHER;
 389                                         }
 390                                 }
 391                                 break;
 392
 393                         default:
 394                                 return LDAP_OTHER;
 395                         }
 396
 397                         *crit = c;
 398                         *perms = p;
 399
 400                         return LDAP_SUCCESS;
 401                 }
 402         }
 403
 404         return LDAP_OTHER;
 405 }
 406 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
 407
 408 /* port = 0 indicates AF_LOCAL */
 409 static int slap_get_listener_addresses(
 410         const char *host,
 411         unsigned short port,
 412         struct sockaddr ***sal)
 413 {
 414         struct sockaddr **sap;
 415
 416 #ifdef LDAP_PF_LOCAL
 417         if ( port == 0 ) {
 418                 *sal = ch_malloc(2 * sizeof(void *));
 419                 if (*sal == NULL) {
 420                         return -1;
 421                 }
 422
 423                 sap = *sal;
 424                 *sap = ch_malloc(sizeof(struct sockaddr_un));
 425                 if (*sap == NULL)
 426                         goto errexit;
 427                 sap[1] = NULL;
 428
 429                 if ( strlen(host) >
 430                      (sizeof(((struct sockaddr_un *)*sap)->sun_path) - 1) ) {
 431 #ifdef NEW_LOGGING
 432                         LDAP_LOG( CONNECTION, INFO,
 433                                 "slap_get_listener_addresses: domain socket path (%s) "
 434                                 "too long in URL\n", host, 0, 0 );
 435 #else
 436                         Debug( LDAP_DEBUG_ANY,
 437                                "daemon: domain socket path (%s) too long in URL",
 438                                host, 0, 0);
 439 #endif
 440                         goto errexit;
 441                 }
 442
 443                 (void)memset( (void *)*sap, '\0', sizeof(struct sockaddr_un) );
 444                 (*sap)->sa_family = AF_LOCAL;
 445                 strcpy( ((struct sockaddr_un *)*sap)->sun_path, host );
 446         } else
 447 #endif
 448         {
 449 #ifdef HAVE_GETADDRINFO
 450                 struct addrinfo hints, *res, *sai;
 451                 int n, err;
 452                 char serv[7];
 453
 454                 memset( &hints, '\0', sizeof(hints) );
 455                 hints.ai_flags = AI_PASSIVE;
 456                 hints.ai_socktype = SOCK_STREAM;
 457                 hints.ai_family = slap_inet4or6;
 458                 snprintf(serv, sizeof serv, "%d", port);
 459
 460                 if ( (err = getaddrinfo(host, serv, &hints, &res)) ) {
 461 #ifdef NEW_LOGGING
 462                         LDAP_LOG( CONNECTION, INFO,
 463                                    "slap_get_listener_addresses: getaddrinfo failed: %s\n",
 464                                    AC_GAI_STRERROR(err), 0, 0 );
 465 #else
 466                         Debug( LDAP_DEBUG_ANY, "daemon: getaddrinfo failed: %s\n",
 467                                 AC_GAI_STRERROR(err), 0, 0);
 468 #endif
 469                         return -1;
 470                 }
 471
 472                 sai = res;
 473                 for (n=2; (sai = sai->ai_next) != NULL; n++) {
 474                         /* EMPTY */ ;
 475                 }
 476                 *sal = ch_calloc(n, sizeof(void *));
 477                 if (*sal == NULL) {
 478                         return -1;
 479                 }
 480
 481                 sap = *sal;
 482                 *sap = NULL;
 483
 484                 for ( sai=res; sai; sai=sai->ai_next ) {
 485                         if( sai->ai_addr == NULL ) {
 486 #ifdef NEW_LOGGING
 487                                 LDAP_LOG( CONNECTION, INFO,
 488                                         "slap_get_listener_addresses: "
 489                                         "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
 490 #else
 491                                 Debug( LDAP_DEBUG_ANY, "slap_get_listener_addresses: "
 492                                         "getaddrinfo ai_addr is NULL?\n", 0, 0, 0 );
 493 #endif
 494                                 freeaddrinfo(res);
 495                                 goto errexit;
 496                         }
 497
 498                         switch (sai->ai_family) {
 499 #  ifdef LDAP_PF_INET6
 500                         case AF_INET6:
 501                                 *sap = ch_malloc(sizeof(struct sockaddr_in6));
 502                                 if (*sap == NULL) {
 503                                         freeaddrinfo(res);
 504                                         goto errexit;
 505                                 }
 506                                 *(struct sockaddr_in6 *)*sap =
 507                                         *((struct sockaddr_in6 *)sai->ai_addr);
 508                                 break;
 509 #  endif
 510                         case AF_INET:
 511                                 *sap = ch_malloc(sizeof(struct sockaddr_in));
 512                                 if (*sap == NULL) {
 513                                         freeaddrinfo(res);
 514                                         goto errexit;
 515                                 }
 516                                 *(struct sockaddr_in *)*sap =
 517                                         *((struct sockaddr_in *)sai->ai_addr);
 518                                 break;
 519                         default:
 520                                 *sap = NULL;
 521                                 break;
 522                         }
 523
 524                         if (*sap != NULL) {
 525                                 (*sap)->sa_family = sai->ai_family;
 526                                 sap++;
 527                                 *sap = NULL;
 528                         }
 529                 }
 530
 531                 freeaddrinfo(res);
 532 #else
 533                 int i, n = 1;
 534                 struct in_addr in;
 535                 struct hostent *he = NULL;
 536
 537                 if ( host == NULL ) {
 538                         in.s_addr = htonl(INADDR_ANY);
 539
 540                 } else if ( !inet_aton( host, &in ) ) {
 541                         he = gethostbyname( host );
 542                         if( he == NULL ) {
 543 #ifdef NEW_LOGGING
 544                                 LDAP_LOG( CONNECTION, INFO,
 545                                         "slap_get_listener_addresses: invalid host %s\n", host, 0, 0 );
 546 #else
 547                                 Debug( LDAP_DEBUG_ANY,
 548                                        "daemon: invalid host %s", host, 0, 0);
 549 #endif
 550                                 return -1;
 551                         }
 552                         for (n = 0; he->h_addr_list[n]; n++) ;
 553                 }
 554
 555                 *sal = ch_malloc((n+1) * sizeof(void *));
 556                 if (*sal == NULL) {
 557                         return -1;
 558                 }
 559
 560                 sap = *sal;
 561                 for ( i = 0; i<n; i++ ) {
 562                         sap[i] = ch_malloc(sizeof(struct sockaddr_in));
 563                         if (*sap == NULL) {
 564                                 goto errexit;
 565                         }
 566                         (void)memset( (void *)sap[i], '\0', sizeof(struct sockaddr_in) );
 567                         sap[i]->sa_family = AF_INET;
 568                         ((struct sockaddr_in *)sap[i])->sin_port = htons(port);
 569                         if (he) {
 570                                 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, he->h_addr_list[i], sizeof(struct in_addr) );
 571                         } else {
 572                                 AC_MEMCPY( &((struct sockaddr_in *)sap[i])->sin_addr, &in, sizeof(struct in_addr) );
 573                         }
 574                 }
 575                 sap[i] = NULL;
 576 #endif
 577         }
 578
 579         return 0;
 580
 581 errexit:
 582         slap_free_listener_addresses(*sal);
 583         return -1;
 584 }
 585
 586 static int slap_open_listener(
 587         const char* url,
 588         int *listeners,
 589         int *cur
 590         )
 591 {
 592         int     num, tmp, rc;
 593         Listener l;
 594         Listener *li;
 595         LDAPURLDesc *lud;
 596         unsigned short port;
 597         int err, addrlen = 0;
 598         struct sockaddr **sal, **psal;
 599         int socktype = SOCK_STREAM;     /* default to COTS */
 600
 601 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
 602         /*
 603          * use safe defaults
 604          */
 605         int     crit = 1;
 606 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
 607
 608         rc = ldap_url_parse( url, &lud );
 609
 610         if( rc != LDAP_URL_SUCCESS ) {
 611 #ifdef NEW_LOGGING
 612                 LDAP_LOG( CONNECTION, ERR,
 613                         "slap_open_listener: listen URL \"%s\" parse error %d\n",
 614                         url, rc , 0 );
 615 #else
 616                 Debug( LDAP_DEBUG_ANY,
 617                         "daemon: listen URL \"%s\" parse error=%d\n",
 618                         url, rc, 0 );
 619 #endif
 620                 return rc;
 621         }
 622
 623         l.sl_url.bv_val = NULL;
 624
 625 #ifndef HAVE_TLS
 626         if( ldap_pvt_url_scheme2tls( lud->lud_scheme ) ) {
 627 #ifdef NEW_LOGGING
 628                 LDAP_LOG( CONNECTION, INFO,
 629                            "slap_open_listener: TLS is not supported (%s)\n", url, 0, 0 );
 630 #else
 631                 Debug( LDAP_DEBUG_ANY,
 632                         "daemon: TLS not supported (%s)\n",
 633                         url, 0, 0 );
 634 #endif
 635                 ldap_free_urldesc( lud );
 636                 return -1;
 637         }
 638
 639         if(! lud->lud_port ) {
 640                 lud->lud_port = LDAP_PORT;
 641         }
 642
 643 #else
 644         l.sl_is_tls = ldap_pvt_url_scheme2tls( lud->lud_scheme );
 645
 646         if(! lud->lud_port ) {
 647                 lud->lud_port = l.sl_is_tls ? LDAPS_PORT : LDAP_PORT;
 648         }
 649 #endif
 650
 651         port = (unsigned short) lud->lud_port;
 652
 653         tmp = ldap_pvt_url_scheme2proto(lud->lud_scheme);
 654         if ( tmp == LDAP_PROTO_IPC ) {
 655 #ifdef LDAP_PF_LOCAL
 656                 if ( lud->lud_host == NULL || lud->lud_host[0] == '\0' ) {
 657                         err = slap_get_listener_addresses(LDAPI_SOCK, 0, &sal);
 658                 } else {
 659                         err = slap_get_listener_addresses(lud->lud_host, 0, &sal);
 660                 }
 661 #else
 662
 663 #ifdef NEW_LOGGING
 664                 LDAP_LOG( CONNECTION, INFO,
 665                         "slap_open_listener: URL scheme is not supported: %s\n", url, 0, 0 );
 666 #else
 667                 Debug( LDAP_DEBUG_ANY, "daemon: URL scheme not supported: %s",
 668                         url, 0, 0);
 669 #endif
 670                 ldap_free_urldesc( lud );
 671                 return -1;
 672 #endif
 673         } else {
 674                 if( lud->lud_host == NULL || lud->lud_host[0] == '\0'
 675                         || strcmp(lud->lud_host, "*") == 0 )
 676                 {
 677                         err = slap_get_listener_addresses(NULL, port, &sal);
 678                 } else {
 679                         err = slap_get_listener_addresses(lud->lud_host, port, &sal);
 680                 }
 681         }
 682 #ifdef LDAP_CONNECTIONLESS
 683         l.sl_is_udp = ( tmp == LDAP_PROTO_UDP );
 684 #endif
 685
 686 #if defined(LDAP_PF_LOCAL) || defined(SLAP_X_LISTENER_MOD)
 687         if ( lud->lud_exts ) {
 688                 err = get_url_perms( lud->lud_exts, &l.sl_perms, &crit );
 689         } else {
 690                 l.sl_perms = S_IRWXU | S_IRWXO;
 691         }
 692 #endif /* LDAP_PF_LOCAL || SLAP_X_LISTENER_MOD */
 693
 694         ldap_free_urldesc( lud );
 695         if ( err ) {
 696                 return -1;
 697         }
 698
 699         /* If we got more than one address returned, we need to make space
 700          * for it in the slap_listeners array.
 701          */
 702         for ( num=0; sal[num]; num++ );
 703         if ( num > 1 ) {
 704                 *listeners += num-1;
 705                 slap_listeners = ch_realloc( slap_listeners, (*listeners + 1) * sizeof(Listener *) );
 706         }
 707
 708         psal = sal;
 709         while ( *sal != NULL ) {
 710                 switch( (*sal)->sa_family ) {
 711                 case AF_INET:
 712 #ifdef LDAP_PF_INET6
 713                 case AF_INET6:
 714 #endif
 715 #ifdef LDAP_PF_LOCAL
 716                 case AF_LOCAL:
 717 #endif
 718                         break;
 719                 default:
 720                         sal++;
 721                         continue;
 722                 }
 723 #ifdef LDAP_CONNECTIONLESS
 724                 if( l.sl_is_udp ) socktype = SOCK_DGRAM;
 725 #endif
 726                 l.sl_sd = socket( (*sal)->sa_family, socktype, 0);
 727                 if ( l.sl_sd == AC_SOCKET_INVALID ) {
 728                         int err = sock_errno();
 729 #ifdef NEW_LOGGING
 730                         LDAP_LOG( CONNECTION, ERR,
 731                                 "slap_open_listener: socket() failed errno=%d (%s)\n",
 732                                 err, sock_errstr(err), 0 );
 733 #else
 734                         Debug( LDAP_DEBUG_ANY,
 735                                 "daemon: socket() failed errno=%d (%s)\n", err,
 736                                 sock_errstr(err), 0 );
 737 #endif
 738                         sal++;
 739                         continue;
 740                 }
 741 #ifndef HAVE_WINSOCK
 742                 if ( l.sl_sd >= dtblsize ) {
 743 #ifdef NEW_LOGGING
 744                         LDAP_LOG( CONNECTION, ERR,
 745                                 "slap_open_listener: listener descriptor %ld is too "
 746                                 "great %ld\n", (long)l.sl_sd, (long)dtblsize, 0 );
 747 #else
 748                         Debug( LDAP_DEBUG_ANY,
 749                                "daemon: listener descriptor %ld is too great %ld\n",
 750                                (long) l.sl_sd, (long) dtblsize, 0 );
 751 #endif
 752                         tcp_close( l.sl_sd );
 753                         sal++;
 754                         continue;
 755                 }
 756 #endif
 757 #ifdef LDAP_PF_LOCAL
 758                 if ( (*sal)->sa_family == AF_LOCAL ) {
 759                         unlink ( ((struct sockaddr_un *)*sal)->sun_path );
 760                 } else
 761 #endif
 762                 {
 763 #ifdef SO_REUSEADDR
 764                         /* enable address reuse */
 765                         tmp = 1;
 766                         rc = setsockopt( l.sl_sd, SOL_SOCKET, SO_REUSEADDR,
 767                                          (char *) &tmp, sizeof(tmp) );
 768                         if ( rc == AC_SOCKET_ERROR ) {
 769                                 int err = sock_errno();
 770 #ifdef NEW_LOGGING
 771                                 LDAP_LOG( CONNECTION, INFO,
 772                                         "slap_open_listener: setsockopt( %ld, SO_REUSEADDR ) "
 773                                         "failed errno %d (%s)\n", (long)l.sl_sd, err,
 774                                         sock_errstr(err) );
 775 #else
 776                                 Debug( LDAP_DEBUG_ANY,
 777                                        "slapd(%ld): setsockopt(SO_REUSEADDR) failed errno=%d (%s)\n",
 778                                        (long) l.sl_sd, err, sock_errstr(err) );
 779 #endif
 780                         }
 781 #endif
 782                 }
 783
 784                 switch( (*sal)->sa_family ) {
 785                 case AF_INET:
 786                         addrlen = sizeof(struct sockaddr_in);
 787                         break;
 788 #ifdef LDAP_PF_INET6
 789                 case AF_INET6:
 790 #ifdef IPV6_V6ONLY
 791                         /* Try to use IPv6 sockets for IPv6 only */
 792                         tmp = 1;
 793                         rc = setsockopt( l.sl_sd, IPPROTO_IPV6, IPV6_V6ONLY,
 794                                          (char *) &tmp, sizeof(tmp) );
 795                         if ( rc == AC_SOCKET_ERROR ) {
 796                                 int err = sock_errno();
 797 #ifdef NEW_LOGGING
 798                                 LDAP_LOG( CONNECTION, INFO,
 799                                            "slap_open_listener: setsockopt( %ld, IPV6_V6ONLY ) failed errno %d (%s)\n",
 800                                            (long)l.sl_sd, err, sock_errstr(err) );
 801 #else
 802                                 Debug( LDAP_DEBUG_ANY,
 803                                        "slapd(%ld): setsockopt(IPV6_V6ONLY) failed errno=%d (%s)\n",
 804                                        (long) l.sl_sd, err, sock_errstr(err) );
 805 #endif
 806                         }
 807 #endif
 808                         addrlen = sizeof(struct sockaddr_in6);
 809                         break;
 810 #endif
 811 #ifdef LDAP_PF_LOCAL
 812                 case AF_LOCAL:
 813                         addrlen = sizeof(struct sockaddr_un);
 814                         break;
 815 #endif
 816                 }
 817
 818                 if (bind(l.sl_sd, *sal, addrlen)) {
 819                         err = sock_errno();
 820 #ifdef NEW_LOGGING
 821                 LDAP_LOG( CONNECTION, INFO,
 822                         "slap_open_listener: bind(%ld) failed errno=%d (%s)\n",
 823                         (long)l.sl_sd, err, sock_errstr(err) );
 824 #else
 825                 Debug( LDAP_DEBUG_ANY, "daemon: bind(%ld) failed errno=%d (%s)\n",
 826                        (long) l.sl_sd, err, sock_errstr(err) );
 827 #endif
 828                         tcp_close( l.sl_sd );
 829                         sal++;
 830                         continue;
 831                 }
 832
 833         switch ( (*sal)->sa_family ) {
 834 #ifdef LDAP_PF_LOCAL
 835         case AF_LOCAL: {
 836                 char *addr = ((struct sockaddr_un *)*sal)->sun_path;
 837 #if 0 /* don't muck with socket perms */
 838                 if ( chmod( addr, l.sl_perms ) < 0 && crit ) {
 839                         int err = sock_errno();
 840 #ifdef NEW_LOGGING
 841                         LDAP_LOG( CONNECTION, INFO,
 842                                 "slap_open_listener: fchmod(%ld) failed errno=%d (%s)\n",
 843                                 (long)l.sl_sd, err, sock_errstr(err) );
 844 #else
 845                         Debug( LDAP_DEBUG_ANY, "daemon: fchmod(%ld) failed errno=%d (%s)",
 846                                (long) l.sl_sd, err, sock_errstr(err) );
 847 #endif
 848                         tcp_close( l.sl_sd );
 849                         slap_free_listener_addresses(psal);
 850                         return -1;
 851                 }
 852 #endif
 853                 l.sl_name.bv_len = strlen(addr) + sizeof("PATH=") - 1;
 854                 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len + 1 );
 855                 snprintf( l.sl_name.bv_val, l.sl_name.bv_len + 1,
 856                                 "PATH=%s", addr );
 857         } break;
 858 #endif /* LDAP_PF_LOCAL */
 859
 860         case AF_INET: {
 861                 char *s;
 862 #if defined( HAVE_GETADDRINFO ) && defined( HAVE_INET_NTOP )
 863                 char addr[INET_ADDRSTRLEN];
 864                 inet_ntop( AF_INET, &((struct sockaddr_in *)*sal)->sin_addr,
 865                            addr, sizeof(addr) );
 866                 s = addr;
 867 #else
 868                 s = inet_ntoa( ((struct sockaddr_in *) *sal)->sin_addr );
 869 #endif
 870                 port = ntohs( ((struct sockaddr_in *)*sal) ->sin_port );
 871                 l.sl_name.bv_val = ber_memalloc( sizeof("IP=255.255.255.255:65535") );
 872                 snprintf( l.sl_name.bv_val, sizeof("IP=255.255.255.255:65535"),
 873                         "IP=%s:%d",
 874                          s != NULL ? s : SLAP_STRING_UNKNOWN, port );
 875                 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
 876         } break;
 877
 878 #ifdef LDAP_PF_INET6
 879         case AF_INET6: {
 880                 char addr[INET6_ADDRSTRLEN];
 881                 inet_ntop( AF_INET6, &((struct sockaddr_in6 *)*sal)->sin6_addr,
 882                            addr, sizeof addr);
 883                 port = ntohs( ((struct sockaddr_in6 *)*sal)->sin6_port );
 884                 l.sl_name.bv_len = strlen(addr) + sizeof("IP= 65535");
 885                 l.sl_name.bv_val = ber_memalloc( l.sl_name.bv_len );
 886                 snprintf( l.sl_name.bv_val, l.sl_name.bv_len, "IP=%s %d",
 887                                 addr, port );
 888                 l.sl_name.bv_len = strlen( l.sl_name.bv_val );
 889         } break;
 890 #endif /* LDAP_PF_INET6 */
 891
 892         default:
 893 #ifdef NEW_LOGGING
 894                 LDAP_LOG( CONNECTION, INFO,
 895                         "slap_open_listener: unsupported address family (%d)\n",
 896                         (int)(*sal)->sa_family, 0, 0 );
 897 #else
 898                 Debug( LDAP_DEBUG_ANY, "daemon: unsupported address family (%d)\n",
 899                         (int) (*sal)->sa_family, 0, 0 );
 900 #endif
 901                 break;
 902         }
 903
 904         AC_MEMCPY(&l.sl_sa, *sal, addrlen);
 905         ber_str2bv( url, 0, 1, &l.sl_url);
 906         li = ch_malloc( sizeof( Listener ) );
 907         *li = l;
 908         slap_listeners[*cur] = li;
 909         (*cur)++;
 910         sal++;
 911
 912         } /* while ( *sal != NULL ) */
 913
 914         slap_free_listener_addresses(psal);
 915
 916         if ( l.sl_url.bv_val == NULL )
 917         {
 918 #ifdef NEW_LOGGING
 919                 LDAP_LOG( CONNECTION, RESULTS,
 920                         "slap_open_listener: failed on %s\n", url, 0, 0 );
 921 #else
 922                 Debug( LDAP_DEBUG_TRACE,
 923                         "slap_open_listener: failed on %s\n", url, 0, 0 );
 924 #endif
 925                 return -1;
 926         }
 927
 928 #ifdef NEW_LOGGING
 929         LDAP_LOG( CONNECTION, RESULTS,
 930                 "slap_open_listener: daemon initialized %s\n",
 931                 l.sl_url.bv_val, 0, 0 );
 932 #else
 933         Debug( LDAP_DEBUG_TRACE, "daemon: initialized %s\n",
 934                 l.sl_url.bv_val, 0, 0 );
 935 #endif
 936         return 0;
 937 }
 938
 939 static int sockinit(void);
 940 static int sockdestroy(void);
 941
 942 int slapd_daemon_init( const char *urls )
 943 {
 944         int i, j, n, rc;
 945         char **u;
 946
 947 #ifdef NEW_LOGGING
 948         LDAP_LOG( CONNECTION, ARGS,
 949                 "slapd_daemon_init: %s\n", urls ? urls : "<null>", 0, 0 );
 950 #else
 951         Debug( LDAP_DEBUG_ARGS, "daemon_init: %s\n",
 952                 urls ? urls : "<null>", 0, 0 );
 953 #endif
 954         if( (rc = sockinit()) != 0 ) {
 955                 return rc;
 956         }
 957
 958 #ifdef HAVE_SYSCONF
 959         dtblsize = sysconf( _SC_OPEN_MAX );
 960 #elif HAVE_GETDTABLESIZE
 961         dtblsize = getdtablesize();
 962 #else
 963         dtblsize = FD_SETSIZE;
 964 #endif
 965
 966 #ifdef FD_SETSIZE
 967         if(dtblsize > FD_SETSIZE) {
 968                 dtblsize = FD_SETSIZE;
 969         }
 970 #endif  /* !FD_SETSIZE */
 971
 972         /* open a pipe (or something equivalent connected to itself).
 973          * we write a byte on this fd whenever we catch a signal. The main
 974          * loop will be select'ing on this socket, and will wake up when
 975          * this byte arrives.
 976          */
 977         if( (rc = lutil_pair( wake_sds )) < 0 ) {
 978 #ifdef NEW_LOGGING
 979                 LDAP_LOG( CONNECTION, ERR,
 980                         "slap_daemon_init: lutil_pair() failed rc=%d\n", rc, 0, 0);
 981 #else
 982                 Debug( LDAP_DEBUG_ANY,
 983                         "daemon: lutil_pair() failed rc=%d\n", rc, 0, 0 );
 984 #endif
 985                 return rc;
 986         }
 987
 988         FD_ZERO( &slap_daemon.sd_readers );
 989         FD_ZERO( &slap_daemon.sd_writers );
 990
 991         if( urls == NULL ) {
 992                 urls = "ldap:///";
 993         }
 994
 995         u = ldap_str2charray( urls, " " );
 996
 997         if( u == NULL || u[0] == NULL ) {
 998 #ifdef NEW_LOGGING
 999                 LDAP_LOG( CONNECTION, ERR,
1000                         "slap_daemon_init: no urls (%s) provided.\n", urls, 0, 0 );
1001 #else
1002                 Debug( LDAP_DEBUG_ANY, "daemon_init: no urls (%s) provided.\n",
1003                         urls, 0, 0 );
1004 #endif
1005                 return -1;
1006         }
1007
1008         for( i=0; u[i] != NULL; i++ ) {
1009 #ifdef NEW_LOGGING
1010                 LDAP_LOG( CONNECTION, DETAIL1,
1011                         "slap_daemon_init: listen on %s\n.", u[i], 0, 0 );
1012 #else
1013                 Debug( LDAP_DEBUG_TRACE, "daemon_init: listen on %s\n",
1014                         u[i], 0, 0 );
1015 #endif
1016         }
1017
1018         if( i == 0 ) {
1019 #ifdef NEW_LOGGING
1020                 LDAP_LOG( CONNECTION, INFO,
1021                          "slap_daemon_init: no listeners to open (%s)\n", urls, 0, 0 );
1022 #else
1023                 Debug( LDAP_DEBUG_ANY, "daemon_init: no listeners to open (%s)\n",
1024                         urls, 0, 0 );
1025 #endif
1026                 ldap_charray_free( u );
1027                 return -1;
1028         }
1029
1030 #ifdef NEW_LOGGING
1031         LDAP_LOG( CONNECTION, INFO,
1032                 "slap_daemon_init: %d listeners to open...\n", i, 0, 0 );
1033 #else
1034         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners to open...\n",
1035                 i, 0, 0 );
1036 #endif
1037         slap_listeners = ch_malloc( (i+1)*sizeof(Listener *) );
1038
1039         for(n = 0, j = 0; u[n]; n++ ) {
1040                 if ( slap_open_listener( u[n], &i, &j ) ) {
1041                         ldap_charray_free( u );
1042                         return -1;
1043                 }
1044         }
1045         slap_listeners[j] = NULL;
1046
1047 #ifdef NEW_LOGGING
1048         LDAP_LOG( CONNECTION, DETAIL1,
1049                 "slap_daemon_init: %d listeners opened\n", i, 0, 0 );
1050 #else
1051         Debug( LDAP_DEBUG_TRACE, "daemon_init: %d listeners opened\n",
1052                 i, 0, 0 );
1053 #endif
1054
1055 #ifdef HAVE_SLP
1056         slapd_slp_init( urls );
1057         slapd_slp_reg();
1058 #endif
1059
1060         ldap_charray_free( u );
1061         ldap_pvt_thread_mutex_init( &slap_daemon.sd_mutex );
1062         return !i;
1063 }
1064
1065
1066 int
1067 slapd_daemon_destroy(void)
1068 {
1069         connections_destroy();
1070         tcp_close( wake_sds[1] );
1071         tcp_close( wake_sds[0] );
1072         sockdestroy();
1073
1074 #ifdef HAVE_SLP
1075         slapd_slp_dereg();
1076         slapd_slp_deinit();
1077 #endif
1078
1079         return 0;
1080 }
1081
1082
1083 static void
1084 close_listeners(
1085         int remove
1086 )
1087 {
1088         int l;
1089
1090         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1091                 if ( slap_listeners[l]->sl_sd != AC_SOCKET_INVALID ) {
1092                         if ( remove )
1093                                 slapd_remove( slap_listeners[l]->sl_sd, 0 );
1094 #ifdef LDAP_PF_LOCAL
1095                         if ( slap_listeners[l]->sl_sa.sa_addr.sa_family == AF_LOCAL ) {
1096                                 unlink( slap_listeners[l]->sl_sa.sa_un_addr.sun_path );
1097                         }
1098 #endif /* LDAP_PF_LOCAL */
1099                         slapd_close( slap_listeners[l]->sl_sd );
1100                 }
1101                 if ( slap_listeners[l]->sl_url.bv_val )
1102                         ber_memfree( slap_listeners[l]->sl_url.bv_val );
1103                 if ( slap_listeners[l]->sl_name.bv_val )
1104                         ber_memfree( slap_listeners[l]->sl_name.bv_val );
1105                 free ( slap_listeners[l] );
1106                 slap_listeners[l] = NULL;
1107         }
1108 }
1109
1110
1111 static void *
1112 slapd_daemon_task(
1113         void *ptr
1114 )
1115 {
1116         int l;
1117         time_t  last_idle_check = 0;
1118         time( &starttime );
1119
1120         if ( global_idletimeout > 0 ) {
1121                 last_idle_check = slap_get_time();
1122         }
1123         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1124                 if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1125                         continue;
1126 #ifdef LDAP_CONNECTIONLESS
1127                 /* Since this is connectionless, the data port is the
1128                  * listening port. The listen() and accept() calls
1129                  * are unnecessary.
1130                  */
1131                 if ( slap_listeners[l]->sl_is_udp ) {
1132                         slapd_add( slap_listeners[l]->sl_sd );
1133                         continue;
1134                 }
1135 #endif
1136
1137                 if ( listen( slap_listeners[l]->sl_sd, SLAPD_LISTEN ) == -1 ) {
1138                         int err = sock_errno();
1139
1140 #ifdef LDAP_PF_INET6
1141                         /* If error is EADDRINUSE, we are trying to listen to INADDR_ANY and
1142                          * we are already listening to in6addr_any, then we want to ignore
1143                          * this and continue.
1144                          */
1145                         if ( err == EADDRINUSE ) {
1146                                 int i;
1147                                 struct sockaddr_in sa = slap_listeners[l]->sl_sa.sa_in_addr;
1148                                 struct sockaddr_in6 sa6;
1149
1150                                 if ( sa.sin_family == AF_INET &&
1151                                      sa.sin_addr.s_addr == htonl(INADDR_ANY) ) {
1152                                         for ( i = 0 ; i < l; i++ ) {
1153                                                 sa6 = slap_listeners[i]->sl_sa.sa_in6_addr;
1154                                                 if ( sa6.sin6_family == AF_INET6 &&
1155                                                      !memcmp( &sa6.sin6_addr, &in6addr_any, sizeof(struct in6_addr) ) )
1156                                                         break;
1157                                         }
1158
1159                                         if ( i < l ) {
1160                                                 /* We are already listening to in6addr_any */
1161 #ifdef NEW_LOGGING
1162                                                 LDAP_LOG(CONNECTION, WARNING,
1163                                                            "slapd_daemon_task: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n", 0, 0, 0 );
1164 #else
1165                                                 Debug( LDAP_DEBUG_CONNS,
1166                                                        "daemon: Attempt to listen to 0.0.0.0 failed, already listening on ::, assuming IPv4 included\n",
1167                                                        0, 0, 0 );
1168 #endif
1169                                                 slapd_close( slap_listeners[l]->sl_sd );
1170                                                 slap_listeners[l]->sl_sd = AC_SOCKET_INVALID;
1171                                                 continue;
1172                                         }
1173                                 }
1174                         }
1175 #endif
1176 #ifdef NEW_LOGGING
1177                         LDAP_LOG( CONNECTION, ERR,
1178                                 "slapd_daemon_task: listen( %s, 5 ) failed errno=%d (%s)\n",
1179                                 slap_listeners[l]->sl_url.bv_val, err, sock_errstr(err) );
1180 #else
1181                         Debug( LDAP_DEBUG_ANY,
1182                                 "daemon: listen(%s, 5) failed errno=%d (%s)\n",
1183                                         slap_listeners[l]->sl_url.bv_val, err,
1184                                         sock_errstr(err) );
1185 #endif
1186                         return( (void*)-1 );
1187                 }
1188
1189                 slapd_add( slap_listeners[l]->sl_sd );
1190         }
1191
1192 #ifdef HAVE_NT_SERVICE_MANAGER
1193         if ( started_event != NULL ) {
1194                 ldap_pvt_thread_cond_signal( &started_event );
1195         }
1196 #endif
1197         /* initialization complete. Here comes the loop. */
1198
1199         while ( !slapd_shutdown ) {
1200                 ber_socket_t i;
1201                 int ns;
1202                 int at;
1203                 ber_socket_t nfds;
1204 #define SLAPD_EBADF_LIMIT 16
1205                 int ebadf = 0;
1206                 int emfile = 0;
1207
1208 #define SLAPD_IDLE_CHECK_LIMIT 4
1209                 time_t  now;
1210
1211
1212                 fd_set                  readfds;
1213                 fd_set                  writefds;
1214                 Sockaddr                from;
1215
1216                 struct timeval          zero;
1217                 struct timeval          *tvp;
1218
1219 #ifdef LDAP_SYNCREPL
1220                 struct timeval          diff;
1221                 struct timeval          *cat;
1222                 time_t                          tdelta = 1;
1223                 struct re_s*            rtask;
1224 #endif
1225
1226                 now = slap_get_time();
1227
1228                 if( emfile ) {
1229                         connections_timeout_idle( now );
1230
1231                 } else if ( global_idletimeout > 0 ) {
1232                         if ( difftime( last_idle_check+global_idletimeout/SLAPD_IDLE_CHECK_LIMIT, now ) < 0 ) {
1233                                 connections_timeout_idle( now );
1234                                 last_idle_check = now;
1235                         }
1236                 }
1237
1238 #ifdef SIGHUP
1239                 if( slapd_gentle_shutdown ) {
1240                         ber_socket_t active;
1241
1242                         if( slapd_gentle_shutdown == 1 ) {
1243                                 Debug( LDAP_DEBUG_ANY, "slapd gentle shutdown\n", 0, 0, 0 );
1244                                 close_listeners( 1 );
1245                                 global_restrictops |= SLAP_RESTRICT_OP_WRITES;
1246                                 slapd_gentle_shutdown = 2;
1247                         }
1248
1249                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1250                         active = slap_daemon.sd_nactives;
1251                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1252                         if( active == 0 ) {
1253                                 slapd_shutdown = 2;
1254                                 break;
1255                         }
1256                 }
1257 #endif
1258
1259                 FD_ZERO( &writefds );
1260                 FD_ZERO( &readfds );
1261
1262                 zero.tv_sec = 0;
1263                 zero.tv_usec = 0;
1264
1265                 ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1266
1267 #ifdef FD_SET_MANUAL_COPY
1268                 for( s = 0; s < nfds; s++ ) {
1269                         if(FD_ISSET( &slap_sd_readers, s )) {
1270                                 FD_SET( s, &readfds );
1271                         }
1272                         if(FD_ISSET( &slap_sd_writers, s )) {
1273                                 FD_SET( s, &writefds );
1274                         }
1275                 }
1276 #else
1277                 AC_MEMCPY( &readfds, &slap_daemon.sd_readers, sizeof(fd_set) );
1278                 AC_MEMCPY( &writefds, &slap_daemon.sd_writers, sizeof(fd_set) );
1279 #endif
1280                 assert(!FD_ISSET(wake_sds[0], &readfds));
1281                 FD_SET( wake_sds[0], &readfds );
1282
1283                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1284                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1285                                 continue;
1286                         if (!FD_ISSET(slap_listeners[l]->sl_sd, &readfds))
1287                             FD_SET( slap_listeners[l]->sl_sd, &readfds );
1288                 }
1289
1290 #ifndef HAVE_WINSOCK
1291                 nfds = slap_daemon.sd_nfds;
1292 #else
1293                 nfds = dtblsize;
1294 #endif
1295
1296                 ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1297
1298                 at = ldap_pvt_thread_pool_backload(&connection_pool);
1299
1300 #ifdef LDAP_SYNCREPL
1301                 ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
1302                 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1303                 while ( cat && cat->tv_sec && cat->tv_sec <= now ) {
1304                         if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
1305                                 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask );
1306                         } else {
1307                                 ldap_pvt_runqueue_runtask( &syncrepl_rq, rtask );
1308                                 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask );
1309                                 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1310                                 ldap_pvt_thread_pool_submit( &connection_pool,
1311                                                                                         rtask->routine, (void *) rtask );
1312                         }
1313                         rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1314                 }
1315                 rtask = ldap_pvt_runqueue_next_sched( &syncrepl_rq, &cat );
1316                 ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1317
1318                 if ( cat != NULL ) {
1319                         diff.tv_sec = difftime( cat->tv_sec, now );
1320                         if ( diff.tv_sec == 0 )
1321                                 diff.tv_sec = tdelta;
1322                 }
1323 #endif
1324
1325 #if defined( HAVE_YIELDING_SELECT ) || defined( NO_THREADS )
1326                 tvp = NULL;
1327 #else
1328                 tvp = at ? &zero : NULL;
1329 #endif
1330
1331 #ifdef LDAP_SYNCREPL
1332                 if ( cat != NULL ) {
1333                         if ( tvp == NULL ) {
1334                                 tvp = &diff;
1335                         }
1336                 }
1337 #endif
1338
1339                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1340                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1341                                 continue;
1342
1343 #ifdef NEW_LOGGING
1344                         LDAP_LOG( CONNECTION, DETAIL1,
1345                                 "slapd_daemon_task: select: listen=%d "
1346                                 "active_threads=%d tvp=%s\n",
1347                                 slap_listeners[l]->sl_sd, at, tvp == NULL ? "NULL" : "zero" );
1348 #else
1349                         Debug( LDAP_DEBUG_CONNS,
1350                                 "daemon: select: listen=%d active_threads=%d tvp=%s\n",
1351                                         slap_listeners[l]->sl_sd, at,
1352                                         tvp == NULL ? "NULL" : "zero" );
1353 #endif
1354                 }
1355
1356                 switch(ns = select( nfds, &readfds,
1357 #ifdef HAVE_WINSOCK
1358                         /* don't pass empty fd_set */
1359                         ( writefds.fd_count > 0 ? &writefds : NULL ),
1360 #else
1361                         &writefds,
1362 #endif
1363                         NULL, tvp ))
1364                 {
1365                 case -1: {      /* failure - try again */
1366                                 int err = sock_errno();
1367
1368                                 if( err == EBADF
1369 #ifdef WSAENOTSOCK
1370                                         /* you'd think this would be EBADF */
1371                                         || err == WSAENOTSOCK
1372 #endif
1373                                 ) {
1374                                         if (++ebadf < SLAPD_EBADF_LIMIT)
1375                                                 continue;
1376                                 }
1377
1378                                 if( err != EINTR ) {
1379 #ifdef NEW_LOGGING
1380                                         LDAP_LOG( CONNECTION, INFO,
1381                                                 "slapd_daemon_task: select failed (%d): %s\n",
1382                                                 err, sock_errstr(err), 0 );
1383 #else
1384                                         Debug( LDAP_DEBUG_CONNS,
1385                                                 "daemon: select failed (%d): %s\n",
1386                                                 err, sock_errstr(err), 0 );
1387 #endif
1388                                         slapd_shutdown = 2;
1389                                 }
1390                         }
1391                         continue;
1392
1393                 case 0:         /* timeout - let threads run */
1394                         ebadf = 0;
1395 #ifdef NEW_LOGGING
1396                         LDAP_LOG( CONNECTION, DETAIL2,
1397                                    "slapd_daemon_task: select timeout - yielding\n", 0, 0, 0 );
1398 #else
1399                         Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
1400                             0, 0, 0 );
1401 #endif
1402
1403                         ldap_pvt_thread_yield();
1404                         continue;
1405
1406                 default:        /* something happened - deal with it */
1407                         if( slapd_shutdown ) continue;
1408
1409                         ebadf = 0;
1410 #ifdef NEW_LOGGING
1411                         LDAP_LOG( CONNECTION, DETAIL2,
1412                                    "slapd_daemon_task: activity on %d descriptors\n", ns, 0, 0 );
1413 #else
1414                         Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
1415                                 ns, 0, 0 );
1416 #endif
1417                         /* FALL THRU */
1418                 }
1419
1420                 if( FD_ISSET( wake_sds[0], &readfds ) ) {
1421                         char c[BUFSIZ];
1422                         tcp_read( wake_sds[0], c, sizeof(c) );
1423 #if defined(NO_THREADS) || defined(HAVE_GNU_PTH)
1424                         waking = 0;
1425 #endif
1426                         continue;
1427                 }
1428
1429                 for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1430                         ber_socket_t s;
1431                         socklen_t len = sizeof(from);
1432                         long id;
1433                         slap_ssf_t ssf = 0;
1434                         char *authid = NULL;
1435 #ifdef SLAPD_RLOOKUPS
1436                         char hbuf[NI_MAXHOST];
1437 #endif
1438
1439                         char    *dnsname = NULL;
1440                         char    *peeraddr = NULL;
1441 #ifdef LDAP_PF_LOCAL
1442                         char    peername[MAXPATHLEN + sizeof("PATH=")];
1443 #elif defined(LDAP_PF_INET6)
1444                         char    peername[sizeof("IP=ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 65535")];
1445 #else
1446                         char    peername[sizeof("IP=255.255.255.255:65336")];
1447 #endif /* LDAP_PF_LOCAL */
1448
1449                         peername[0] = '\0';
1450
1451                         if ( slap_listeners[l]->sl_sd == AC_SOCKET_INVALID )
1452                                 continue;
1453
1454                         if ( !FD_ISSET( slap_listeners[l]->sl_sd, &readfds ) )
1455                                 continue;
1456
1457 #ifdef LDAP_CONNECTIONLESS
1458                         if ( slap_listeners[l]->sl_is_udp ) {
1459                                 /* The first time we receive a query, we set this
1460                                  * up as a "connection". It remains open for the life
1461                                  * of the slapd.
1462                                  */
1463                                 if ( slap_listeners[l]->sl_is_udp < 2 ) {
1464                                     id = connection_init(
1465                                         slap_listeners[l]->sl_sd,
1466                                         slap_listeners[l], "", "",
1467                                         2, ssf, authid );
1468                                     slap_listeners[l]->sl_is_udp++;
1469                                 }
1470                                 continue;
1471                         }
1472 #endif
1473
1474                         s = accept( slap_listeners[l]->sl_sd,
1475                                 (struct sockaddr *) &from, &len );
1476                         if ( s == AC_SOCKET_INVALID ) {
1477                                 int err = sock_errno();
1478
1479 #ifdef EMFILE
1480                                 if( err == EMFILE ) {
1481                                         emfile++;
1482                                 } else
1483 #endif
1484 #ifdef ENFILE
1485                                 if( err == ENFILE ) {
1486                                         emfile++;
1487                                 } else
1488 #endif
1489                                 {
1490                                         emfile=0;
1491                                 }
1492
1493                                 if( emfile < 3 ) {
1494 #ifdef NEW_LOGGING
1495                                         LDAP_LOG( CONNECTION, ERR,
1496                                                 "slapd_daemon_task: accept(%ld) failed errno=%d (%s)\n",
1497                                                 (long)slap_listeners[l]->sl_sd,
1498                                                 err, sock_errstr(err) );
1499 #else
1500                                         Debug( LDAP_DEBUG_ANY,
1501                                             "daemon: accept(%ld) failed errno=%d (%s)\n",
1502                                             (long) slap_listeners[l]->sl_sd, err,
1503                                             sock_errstr(err) );
1504 #endif
1505                                 } else {
1506                                         /* prevent busy loop */
1507 #  ifdef HAVE_USLEEP
1508                                         if( emfile % 4 == 3 ) usleep( 250 );
1509 #  else
1510                                         if( emfile % 8 == 7 ) sleep( 1 );
1511 #  endif
1512                                 }
1513
1514                                 ldap_pvt_thread_yield();
1515                                 continue;
1516                         }
1517                         emfile = 0;
1518
1519 #ifndef HAVE_WINSOCK
1520                         /* make sure descriptor number isn't too great */
1521                         if ( s >= dtblsize ) {
1522 #ifdef NEW_LOGGING
1523                                 LDAP_LOG( CONNECTION, ERR,
1524                                    "slapd_daemon_task: %ld beyond descriptor table size %ld\n",
1525                                    (long)s, (long)dtblsize, 0 );
1526 #else
1527                                 Debug( LDAP_DEBUG_ANY,
1528                                         "daemon: %ld beyond descriptor table size %ld\n",
1529                                         (long) s, (long) dtblsize, 0 );
1530 #endif
1531
1532                                 slapd_close(s);
1533                                 ldap_pvt_thread_yield();
1534                                 continue;
1535                         }
1536 #endif
1537
1538 #ifdef LDAP_DEBUG
1539                         ldap_pvt_thread_mutex_lock( &slap_daemon.sd_mutex );
1540
1541                         /* newly accepted stream should not be in any of the FD SETS */
1542                         assert( !FD_ISSET( s, &slap_daemon.sd_actives) );
1543                         assert( !FD_ISSET( s, &slap_daemon.sd_readers) );
1544                         assert( !FD_ISSET( s, &slap_daemon.sd_writers) );
1545
1546                         ldap_pvt_thread_mutex_unlock( &slap_daemon.sd_mutex );
1547 #endif
1548
1549 #if defined( SO_KEEPALIVE ) || defined( TCP_NODELAY )
1550 #ifdef LDAP_PF_LOCAL
1551                         /* for IPv4 and IPv6 sockets only */
1552                         if ( from.sa_addr.sa_family != AF_LOCAL )
1553 #endif /* LDAP_PF_LOCAL */
1554                         {
1555                                 int rc;
1556                                 int tmp;
1557 #ifdef SO_KEEPALIVE
1558                                 /* enable keep alives */
1559                                 tmp = 1;
1560                                 rc = setsockopt( s, SOL_SOCKET, SO_KEEPALIVE,
1561                                         (char *) &tmp, sizeof(tmp) );
1562                                 if ( rc == AC_SOCKET_ERROR ) {
1563                                         int err = sock_errno();
1564 #ifdef NEW_LOGGING
1565                                         LDAP_LOG( CONNECTION, ERR,
1566                                                 "slapd_daemon_task: setsockopt( %ld, SO_KEEPALIVE)"
1567                                            " failed errno=%d (%s)\n",
1568                                                 (long)s, err, sock_errstr(err) );
1569 #else
1570                                         Debug( LDAP_DEBUG_ANY,
1571                                                 "slapd(%ld): setsockopt(SO_KEEPALIVE) failed "
1572                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1573 #endif
1574                                 }
1575 #endif
1576 #ifdef TCP_NODELAY
1577                                 /* enable no delay */
1578                                 tmp = 1;
1579                                 rc = setsockopt( s, IPPROTO_TCP, TCP_NODELAY,
1580                                         (char *)&tmp, sizeof(tmp) );
1581                                 if ( rc == AC_SOCKET_ERROR ) {
1582                                         int err = sock_errno();
1583 #ifdef NEW_LOGGING
1584                                         LDAP_LOG( CONNECTION, ERR,
1585                                                 "slapd_daemon_task: setsockopt( %ld, "
1586                                                 "TCP_NODELAY) failed errno=%d (%s)\n",
1587                                                 (long)s, err, sock_errstr(err) );
1588 #else
1589                                         Debug( LDAP_DEBUG_ANY,
1590                                                 "slapd(%ld): setsockopt(TCP_NODELAY) failed "
1591                                                 "errno=%d (%s)\n", (long) s, err, sock_errstr(err) );
1592 #endif
1593                                 }
1594 #endif
1595                         }
1596 #endif
1597
1598 #ifdef NEW_LOGGING
1599                         LDAP_LOG( CONNECTION, DETAIL1,
1600                                 "slapd_daemon_task: new connection on %ld\n", (long)s, 0, 0 );
1601 #else
1602                         Debug( LDAP_DEBUG_CONNS, "daemon: new connection on %ld\n",
1603                                 (long) s, 0, 0 );
1604 #endif
1605                         switch ( from.sa_addr.sa_family ) {
1606 #  ifdef LDAP_PF_LOCAL
1607                         case AF_LOCAL:
1608                                 sprintf( peername, "PATH=%s", from.sa_un_addr.sun_path );
1609                                 ssf = LDAP_PVT_SASL_LOCAL_SSF;
1610                                 {
1611                                         uid_t uid;
1612                                         gid_t gid;
1613
1614                                         if( getpeereid( s, &uid, &gid ) == 0 ) {
1615                                                 authid = ch_malloc(
1616                                                         sizeof("uidnumber=4294967295+gidnumber=4294967295,"
1617                                                                 "cn=peercred,cn=external,cn=auth"));
1618                                                 sprintf(authid, "uidnumber=%d+gidnumber=%d,"
1619                                                         "cn=peercred,cn=external,cn=auth",
1620                                                         (int) uid, (int) gid);
1621                                         }
1622                                 }
1623                                 dnsname = "local";
1624                                 break;
1625 #endif /* LDAP_PF_LOCAL */
1626
1627 #  ifdef LDAP_PF_INET6
1628                         case AF_INET6:
1629                         if ( IN6_IS_ADDR_V4MAPPED(&from.sa_in6_addr.sin6_addr) ) {
1630                                 peeraddr = inet_ntoa( *((struct in_addr *)
1631                                                         &from.sa_in6_addr.sin6_addr.s6_addr[12]) );
1632                                 sprintf( peername, "IP=%s:%d",
1633                                          peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1634                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1635                         } else {
1636                                 char addr[INET6_ADDRSTRLEN];
1637
1638                                 peeraddr = (char *) inet_ntop( AF_INET6,
1639                                                       &from.sa_in6_addr.sin6_addr,
1640                                                       addr, sizeof addr );
1641                                 sprintf( peername, "IP=%s %d",
1642                                          peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1643                                          (unsigned) ntohs( from.sa_in6_addr.sin6_port ) );
1644                         }
1645                         break;
1646 #  endif /* LDAP_PF_INET6 */
1647
1648                         case AF_INET:
1649                         peeraddr = inet_ntoa( from.sa_in_addr.sin_addr );
1650                         sprintf( peername, "IP=%s:%d",
1651                                 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1652                                 (unsigned) ntohs( from.sa_in_addr.sin_port ) );
1653                                 break;
1654
1655                         default:
1656                                 slapd_close(s);
1657                                 continue;
1658                         }
1659
1660                         if ( ( from.sa_addr.sa_family == AF_INET )
1661 #ifdef LDAP_PF_INET6
1662                                 || ( from.sa_addr.sa_family == AF_INET6 )
1663 #endif
1664                         ) {
1665 #ifdef SLAPD_RLOOKUPS
1666                                 if ( use_reverse_lookup ) {
1667                                         char *herr;
1668                                         if (ldap_pvt_get_hname( (const struct sockaddr *)&from, len, hbuf,
1669                                                 sizeof(hbuf), &herr ) == 0) {
1670                                                 ldap_pvt_str2lower( hbuf );
1671                                                 dnsname = hbuf;
1672                                         }
1673                                 }
1674 #else
1675                                 dnsname = NULL;
1676 #endif /* SLAPD_RLOOKUPS */
1677
1678 #ifdef HAVE_TCPD
1679                                 if ( !hosts_ctl("slapd",
1680                                                 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1681                                                 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1682                                                 SLAP_STRING_UNKNOWN ))
1683                                 {
1684                                         /* DENY ACCESS */
1685                                         Statslog( LDAP_DEBUG_STATS,
1686                                                 "fd=%ld DENIED from %s (%s)",
1687                                                 (long) s,
1688                                                 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1689                                                 peeraddr != NULL ? peeraddr : SLAP_STRING_UNKNOWN,
1690                                                 0, 0 );
1691                                         slapd_close(s);
1692                                         continue;
1693                                 }
1694 #endif /* HAVE_TCPD */
1695                         }
1696
1697                         id = connection_init(s,
1698                                 slap_listeners[l],
1699                                 dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN,
1700                                 peername,
1701 #ifdef HAVE_TLS
1702                                 slap_listeners[l]->sl_is_tls,
1703 #else
1704                                 0,
1705 #endif
1706                                 ssf,
1707                                 authid );
1708
1709                         if( authid ) ch_free(authid);
1710
1711                         if( id < 0 ) {
1712 #ifdef NEW_LOGGING
1713                                 LDAP_LOG( CONNECTION, INFO,
1714                                         "slapd_daemon_task: "
1715                                         "connection_init(%ld, %s, %s) "
1716                                         "failed.\n",
1717                                         (long)s, peername,
1718                                         slap_listeners[l]->sl_name.bv_val );
1719 #else
1720                                 Debug( LDAP_DEBUG_ANY,
1721                                         "daemon: connection_init(%ld, %s, %s) "
1722                                         "failed.\n",
1723                                         (long) s,
1724                                         peername,
1725                                         slap_listeners[l]->sl_name.bv_val );
1726 #endif
1727                                 slapd_close(s);
1728                                 continue;
1729                         }
1730
1731                         Statslog( LDAP_DEBUG_STATS,
1732                                 "conn=%ld fd=%ld ACCEPT from %s (%s)\n",
1733                                 id, (long) s,
1734                                 peername,
1735                                 slap_listeners[l]->sl_name.bv_val,
1736                                 0 );
1737
1738                         slapd_add( s );
1739                         continue;
1740                 }
1741
1742 #ifdef LDAP_DEBUG
1743 #ifdef NEW_LOGGING
1744                 LDAP_LOG( CONNECTION, DETAIL2,
1745                            "slapd_daemon_task: activity on ", 0, 0, 0 );
1746 #else
1747                 Debug( LDAP_DEBUG_CONNS, "daemon: activity on:", 0, 0, 0 );
1748 #endif
1749 #ifdef HAVE_WINSOCK
1750                 for ( i = 0; i < readfds.fd_count; i++ ) {
1751 #ifdef NEW_LOGGING
1752                         LDAP_LOG( CONNECTION, DETAIL2,
1753                                 " %d%s", readfds.fd_array[i], "r", 0, 0 );
1754 #else
1755                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1756                                 readfds.fd_array[i], "r", 0 );
1757 #endif
1758                 }
1759                 for ( i = 0; i < writefds.fd_count; i++ ) {
1760 #ifdef NEW_LOGGING
1761                         LDAP_LOG( CONNECTION, DETAIL2,
1762                                 " %d%s", writefds.fd_array[i], "w" , 0 );
1763 #else
1764                         Debug( LDAP_DEBUG_CONNS, " %d%s",
1765                                 writefds.fd_array[i], "w", 0 );
1766 #endif
1767                 }
1768
1769 #else
1770                 for ( i = 0; i < nfds; i++ ) {
1771                         int     r, w;
1772                         int     is_listener = 0;
1773
1774                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1775                                 if ( i == slap_listeners[l]->sl_sd ) {
1776 #ifdef LDAP_CONNECTIONLESS
1777                                 /* The listener is the data port. Don't
1778                                  * skip it.
1779                                  */
1780                                         if (slap_listeners[l]->sl_is_udp) continue;
1781 #endif
1782                                         is_listener = 1;
1783                                         break;
1784                                 }
1785                         }
1786                         if ( is_listener ) {
1787                                 continue;
1788                         }
1789                         r = FD_ISSET( i, &readfds );
1790                         w = FD_ISSET( i, &writefds );
1791                         if ( r || w ) {
1792 #ifdef NEW_LOGGING
1793                                 LDAP_LOG( CONNECTION, DETAIL2,
1794                                         " %d%s%s", i, r ? "r" : "", w ? "w" : "" );
1795 #else
1796                                 Debug( LDAP_DEBUG_CONNS, " %d%s%s", i,
1797                                     r ? "r" : "", w ? "w" : "" );
1798 #endif
1799                         }
1800                 }
1801 #endif
1802 #ifdef NEW_LOGGING
1803                 LDAP_LOG( CONNECTION, DETAIL2, "\n", 0, 0, 0 );
1804 #else
1805                 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
1806 #endif
1807
1808 #endif
1809
1810                 /* loop through the writers */
1811 #ifdef HAVE_WINSOCK
1812                 for ( i = 0; i < writefds.fd_count; i++ )
1813 #else
1814                 for ( i = 0; i < nfds; i++ )
1815 #endif
1816                 {
1817                         ber_socket_t wd;
1818                         int is_listener = 0;
1819 #ifdef HAVE_WINSOCK
1820                         wd = writefds.fd_array[i];
1821 #else
1822                         if( ! FD_ISSET( i, &writefds ) ) {
1823                                 continue;
1824                         }
1825                         wd = i;
1826 #endif
1827
1828                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1829                                 if ( i == slap_listeners[l]->sl_sd ) {
1830 #ifdef LDAP_CONNECTIONLESS
1831                                         if (slap_listeners[l]->sl_is_udp) continue;
1832 #endif
1833                                         is_listener = 1;
1834                                         break;
1835                                 }
1836                         }
1837                         if ( is_listener ) {
1838                                 continue;
1839                         }
1840 #ifdef NEW_LOGGING
1841                         LDAP_LOG( CONNECTION, DETAIL2,
1842                                 "slapd_daemon_task: write active on %d\n", wd, 0, 0 );
1843 #else
1844                         Debug( LDAP_DEBUG_CONNS,
1845                                 "daemon: write active on %d\n",
1846                                 wd, 0, 0 );
1847 #endif
1848                         /*
1849                          * NOTE: it is possible that the connection was closed
1850                          * and that the stream is now inactive.
1851                          * connection_write() must valid the stream is still
1852                          * active.
1853                          */
1854
1855                         if ( connection_write( wd ) < 0 ) {
1856                                 FD_CLR( (unsigned) wd, &readfds );
1857                                 slapd_close( wd );
1858                         }
1859                 }
1860
1861 #ifdef HAVE_WINSOCK
1862                 for ( i = 0; i < readfds.fd_count; i++ )
1863 #else
1864                 for ( i = 0; i < nfds; i++ )
1865 #endif
1866                 {
1867                         ber_socket_t rd;
1868                         int is_listener = 0;
1869
1870 #ifdef HAVE_WINSOCK
1871                         rd = readfds.fd_array[i];
1872 #else
1873                         if( ! FD_ISSET( i, &readfds ) ) {
1874                                 continue;
1875                         }
1876                         rd = i;
1877 #endif
1878
1879                         for ( l = 0; slap_listeners[l] != NULL; l++ ) {
1880                                 if ( rd == slap_listeners[l]->sl_sd ) {
1881 #ifdef LDAP_CONNECTIONLESS
1882                                         if (slap_listeners[l]->sl_is_udp) continue;
1883 #endif
1884                                         is_listener = 1;
1885                                         break;
1886                                 }
1887                         }
1888                         if ( is_listener ) {
1889                                 continue;
1890                         }
1891
1892 #ifdef NEW_LOGGING
1893                         LDAP_LOG( CONNECTION, DETAIL2,
1894                                 "slapd_daemon_task: read activity on %d\n", rd, 0, 0 );
1895 #else
1896                         Debug ( LDAP_DEBUG_CONNS,
1897                                 "daemon: read activity on %d\n", rd, 0, 0 );
1898 #endif
1899                         /*
1900                          * NOTE: it is possible that the connection was closed
1901                          * and that the stream is now inactive.
1902                          * connection_read() must valid the stream is still
1903                          * active.
1904                          */
1905
1906                         if ( connection_read( rd ) < 0 ) {
1907                                 slapd_close( rd );
1908                         }
1909                 }
1910                 ldap_pvt_thread_yield();
1911         }
1912
1913         if( slapd_shutdown == 1 ) {
1914 #ifdef NEW_LOGGING
1915                 LDAP_LOG( CONNECTION, CRIT,
1916                    "slapd_daemon_task: shutdown requested and initiated.\n", 0, 0, 0 );
1917 #else
1918                 Debug( LDAP_DEBUG_TRACE,
1919                         "daemon: shutdown requested and initiated.\n",
1920                         0, 0, 0 );
1921 #endif
1922
1923         } else if ( slapd_shutdown == 2 ) {
1924 #ifdef HAVE_NT_SERVICE_MANAGER
1925 #ifdef NEW_LOGGING
1926                         LDAP_LOG( CONNECTION, CRIT,
1927                            "slapd_daemon_task: shutdown initiated by Service Manager.\n",
1928                            0, 0, 0);
1929 #else
1930                         Debug( LDAP_DEBUG_TRACE,
1931                                "daemon: shutdown initiated by Service Manager.\n",
1932                                0, 0, 0);
1933 #endif
1934 #else /* !HAVE_NT_SERVICE_MANAGER */
1935 #ifdef NEW_LOGGING
1936                         LDAP_LOG( CONNECTION, CRIT,
1937                            "slapd_daemon_task: abnormal condition, "
1938                            "shutdown initiated.\n", 0, 0, 0 );
1939 #else
1940                         Debug( LDAP_DEBUG_TRACE,
1941                                "daemon: abnormal condition, shutdown initiated.\n",
1942                                0, 0, 0 );
1943 #endif
1944 #endif /* !HAVE_NT_SERVICE_MANAGER */
1945         } else {
1946 #ifdef NEW_LOGGING
1947                 LDAP_LOG( CONNECTION, CRIT,
1948                    "slapd_daemon_task: no active streams, shutdown initiated.\n",
1949                    0, 0, 0 );
1950 #else
1951                 Debug( LDAP_DEBUG_TRACE,
1952                        "daemon: no active streams, shutdown initiated.\n",
1953                        0, 0, 0 );
1954 #endif
1955         }
1956
1957         if( slapd_gentle_shutdown != 2 ) {
1958                 close_listeners ( 0 );
1959         }
1960
1961         free ( slap_listeners );
1962         slap_listeners = NULL;
1963
1964         if( !slapd_gentle_shutdown ) {
1965                 connections_shutdown();
1966         }
1967
1968 #ifdef NEW_LOGGING
1969         LDAP_LOG( CONNECTION, CRIT,
1970                 "slapd_daemon_task: shutdown waiting for %d threads to terminate.\n",
1971                 ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1972 #else
1973         Debug( LDAP_DEBUG_ANY,
1974             "slapd shutdown: waiting for %d threads to terminate\n",
1975             ldap_pvt_thread_pool_backload(&connection_pool), 0, 0 );
1976 #endif
1977         ldap_pvt_thread_pool_destroy(&connection_pool, 1);
1978
1979         return NULL;
1980 }
1981
1982
1983 int slapd_daemon( void )
1984 {
1985         int rc;
1986
1987         connections_init();
1988
1989 #define SLAPD_LISTENER_THREAD 1
1990 #if defined( SLAPD_LISTENER_THREAD )
1991         {
1992                 ldap_pvt_thread_t       listener_tid;
1993
1994                 /* listener as a separate THREAD */
1995                 rc = ldap_pvt_thread_create( &listener_tid,
1996                         0, slapd_daemon_task, NULL );
1997
1998                 if ( rc != 0 ) {
1999 #ifdef NEW_LOGGING
2000                         LDAP_LOG( CONNECTION, ERR,
2001                                 "slapd_daemon: listener ldap_pvt_thread_create failed (%d).\n",
2002                                 rc, 0, 0 );
2003 #else
2004                         Debug( LDAP_DEBUG_ANY,
2005                         "listener ldap_pvt_thread_create failed (%d)\n", rc, 0, 0 );
2006 #endif
2007                         return rc;
2008                 }
2009
2010                 /* wait for the listener thread to complete */
2011                 ldap_pvt_thread_join( listener_tid, (void *) NULL );
2012         }
2013 #else
2014         /* experimental code */
2015         slapd_daemon_task( NULL );
2016 #endif
2017
2018         return 0;
2019
2020 }
2021
2022 int sockinit(void)
2023 {
2024 #if defined( HAVE_WINSOCK2 )
2025     WORD wVersionRequested;
2026         WSADATA wsaData;
2027         int err;
2028
2029         wVersionRequested = MAKEWORD( 2, 0 );
2030
2031         err = WSAStartup( wVersionRequested, &wsaData );
2032         if ( err != 0 ) {
2033                 /* Tell the user that we couldn't find a usable */
2034                 /* WinSock DLL.                                  */
2035                 return -1;
2036         }
2037
2038         /* Confirm that the WinSock DLL supports 2.0.*/
2039         /* Note that if the DLL supports versions greater    */
2040         /* than 2.0 in addition to 2.0, it will still return */
2041         /* 2.0 in wVersion since that is the version we      */
2042         /* requested.                                        */
2043
2044         if ( LOBYTE( wsaData.wVersion ) != 2 ||
2045                 HIBYTE( wsaData.wVersion ) != 0 )
2046         {
2047             /* Tell the user that we couldn't find a usable */
2048             /* WinSock DLL.                                  */
2049             WSACleanup();
2050             return -1;
2051         }
2052
2053         /* The WinSock DLL is acceptable. Proceed. */
2054 #elif defined( HAVE_WINSOCK )
2055         WSADATA wsaData;
2056         if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
2057             return -1;
2058         }
2059 #endif
2060         return 0;
2061 }
2062
2063 int sockdestroy(void)
2064 {
2065 #if defined( HAVE_WINSOCK2 ) || defined( HAVE_WINSOCK )
2066         WSACleanup();
2067 #endif
2068         return 0;
2069 }
2070
2071 RETSIGTYPE
2072 slap_sig_shutdown( int sig )
2073 {
2074 #ifdef NEW_LOGGING
2075         LDAP_LOG( CONNECTION, CRIT,
2076                 "slap_sig_shutdown: signal %d\n", sig, 0, 0 );
2077 #else
2078         Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: signal %d\n", sig, 0, 0);
2079 #endif
2080
2081         /*
2082          * If the NT Service Manager is controlling the server, we don't
2083          * want SIGBREAK to kill the server. For some strange reason,
2084          * SIGBREAK is generated when a user logs out.
2085          */
2086
2087 #if HAVE_NT_SERVICE_MANAGER && SIGBREAK
2088         if (is_NT_Service && sig == SIGBREAK)
2089 #ifdef NEW_LOGGING
2090             LDAP_LOG( CONNECTION, CRIT,
2091                     "slap_sig_shutdown: SIGBREAK ignored.\n", 0, 0, 0 );
2092 #else
2093             Debug(LDAP_DEBUG_TRACE, "slap_sig_shutdown: SIGBREAK ignored.\n",
2094                   0, 0, 0);
2095 #endif
2096         else
2097 #endif
2098 #ifdef SIGHUP
2099         if (sig == SIGHUP && global_gentlehup && slapd_gentle_shutdown == 0)
2100                 slapd_gentle_shutdown = 1;
2101         else
2102 #endif
2103         slapd_shutdown = 1;
2104
2105         WAKE_LISTENER(1);
2106
2107         /* reinstall self */
2108         (void) SIGNAL_REINSTALL( sig, slap_sig_shutdown );
2109 }
2110
2111 RETSIGTYPE
2112 slap_sig_wake( int sig )
2113 {
2114         WAKE_LISTENER(1);
2115
2116         /* reinstall self */
2117         (void) SIGNAL_REINSTALL( sig, slap_sig_wake );
2118 }
2119
2120
2121 void slapd_add_internal(ber_socket_t s) {
2122         slapd_add(s);
2123 }
2124
2125 Listener ** slapd_get_listeners(void) {
2126         return slap_listeners;
2127 }