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

   1 /* syncrepl.c -- Replication Engine which uses the LDAP Sync protocol */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003 The OpenLDAP Foundation.
   6  * Portions Copyright 2003 by IBM Corporation.
   7  * Portions Copyright 2003 by Howard Chu, Symas Corporation.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18
  19 #include "portable.h"
  20
  21 #include <stdio.h>
  22
  23 #include <ac/string.h>
  24 #include <ac/socket.h>
  25
  26 #include "ldap_pvt.h"
  27 #include "lutil.h"
  28 #include "slap.h"
  29 #include "lutil_ldap.h"
  30
  31 #include "ldap_rq.h"
  32
  33 #define SYNCREPL_STR    "syncreplxxx"
  34 #define CN_STR  "cn="
  35
  36 static const struct berval slap_syncrepl_bvc = BER_BVC(SYNCREPL_STR);
  37 static const struct berval slap_syncrepl_cn_bvc = BER_BVC(CN_STR SYNCREPL_STR);
  38
  39 static int syncuuid_cmp( const void *, const void * );
  40 static void avl_ber_bvfree( void * );
  41 static void syncrepl_del_nonpresent( Operation *, syncinfo_t * );
  42
  43 /* callback functions */
  44 static int dn_callback( struct slap_op *, struct slap_rep * );
  45 static int nonpresent_callback( struct slap_op *, struct slap_rep * );
  46 static int null_callback( struct slap_op *, struct slap_rep * );
  47
  48 static AttributeDescription *sync_descs[4];
  49
  50 struct runqueue_s syncrepl_rq;
  51
  52 void
  53 init_syncrepl(syncinfo_t *si)
  54 {
  55         int i, j, k, n;
  56         char **tmp;
  57
  58         if ( !sync_descs[0] ) {
  59                 sync_descs[0] = slap_schema.si_ad_objectClass;
  60                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
  61                 sync_descs[2] = slap_schema.si_ad_entryCSN;
  62                 sync_descs[3] = NULL;
  63         }
  64
  65         for ( n = 0; si->si_attrs[ n ] != NULL; n++ ) /* empty */;
  66
  67         if ( n ) {
  68                 /* Delete Attributes */
  69                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
  70                         for ( j = 0; si->si_attrs[j] != NULL; j++ ) {
  71                                 if ( strcmp( si->si_attrs[j], sync_descs[i]->ad_cname.bv_val )
  72                                         == 0 )
  73                                 {
  74                                         ch_free( si->si_attrs[j] );
  75                                         for ( k = j; si->si_attrs[k] != NULL; k++ ) {
  76                                                 si->si_attrs[k] = si->si_attrs[k+1];
  77                                         }
  78                                 }
  79                         }
  80                 }
  81                 for ( n = 0; si->si_attrs[ n ] != NULL; n++ ) /* empty */;
  82                 tmp = ( char ** ) ch_realloc( si->si_attrs, (n + 4)*sizeof( char * ));
  83                 if ( tmp == NULL ) {
  84 #ifdef NEW_LOGGING
  85                         LDAP_LOG( OPERATION, ERR, "out of memory\n", 0,0,0 );
  86 #else
  87                         Debug( LDAP_DEBUG_ANY, "out of memory\n", 0,0,0 );
  88 #endif
  89                 }
  90         } else {
  91                 tmp = ( char ** ) ch_realloc( si->si_attrs, 5 * sizeof( char * ));
  92                 if ( tmp == NULL ) {
  93 #ifdef NEW_LOGGING
  94                         LDAP_LOG( OPERATION, ERR, "out of memory\n", 0,0,0 );
  95 #else
  96                         Debug( LDAP_DEBUG_ANY, "out of memory\n", 0,0,0 );
  97 #endif
  98                 }
  99                 tmp[ n++ ] = ch_strdup( "*" );
 100         }
 101
 102         si->si_attrs = tmp;
 103
 104         /* Add Attributes */
 105
 106         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 107                 si->si_attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 108                 si->si_attrs[ n ] = NULL;
 109         }
 110 }
 111
 112 static int
 113 ldap_sync_search(
 114         syncinfo_t *si,
 115         void *ctx
 116 )
 117 {
 118         BerElementBuffer berbuf;
 119         BerElement *ber = (BerElement *)&berbuf;
 120         LDAPControl c[2], *ctrls[3];
 121         struct timeval timeout;
 122         ber_int_t       msgid;
 123         int rc;
 124
 125         /* setup LDAP SYNC control */
 126         ber_init2( ber, NULL, LBER_USE_DER );
 127         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 128
 129         if ( si->si_syncCookie.octet_str &&
 130                  si->si_syncCookie.octet_str[0].bv_val ) {
 131                 ber_printf( ber, "{eO}", abs(si->si_type),
 132                                         &si->si_syncCookie.octet_str[0] );
 133         } else {
 134                 ber_printf( ber, "{e}", abs(si->si_type) );
 135         }
 136
 137         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 )) == LBER_ERROR ) {
 138                 ber_free_buf( ber );
 139                 return rc;
 140         }
 141
 142         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 143         c[0].ldctl_iscritical = si->si_type < 0;
 144         ctrls[0] = &c[0];
 145
 146         if ( si->si_authzId ) {
 147                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 148                 ber_str2bv( si->si_authzId, 0, 0, &c[1].ldctl_value );
 149                 c[1].ldctl_iscritical = 1;
 150                 ctrls[1] = &c[1];
 151                 ctrls[2] = NULL;
 152         } else {
 153                 ctrls[1] = NULL;
 154         }
 155
 156         timeout.tv_sec = si->si_tlimit > 0 ? si->si_tlimit : 1;
 157         timeout.tv_usec = 0;
 158
 159         rc = ldap_search_ext( si->si_ld, si->si_base.bv_val, si->si_scope,
 160                 si->si_filterstr.bv_val, si->si_attrs, si->si_attrsonly,
 161                 ctrls, NULL, si->si_tlimit < 0 ? NULL : &timeout,
 162                 si->si_slimit, &msgid );
 163         ber_free_buf( ber );
 164
 165         return rc;
 166 }
 167
 168 static const Listener dummy_list = { {0, ""}, {0, ""} };
 169
 170 static int
 171 do_syncrep1(
 172         Operation *op,
 173         syncinfo_t *si )
 174 {
 175         int     rc;
 176         int cmdline_cookie_found = 0;
 177
 178         char syncrepl_cbuf[sizeof(CN_STR SYNCREPL_STR)];
 179         struct berval syncrepl_cn_bv;
 180         struct sync_cookie      *sc = NULL;
 181         struct sync_cookie      syncCookie = { NULL, -1, NULL };
 182         struct berval   *psub;
 183
 184         psub = &si->si_be->be_nsuffix[0];
 185
 186         /* Init connection to master */
 187
 188         rc = ldap_initialize( &si->si_ld, si->si_provideruri );
 189         if ( rc != LDAP_SUCCESS ) {
 190 #ifdef NEW_LOGGING
 191                 LDAP_LOG( OPERATION, ERR,
 192                         "do_syncrep1: ldap_initialize failed (%s)\n",
 193                         si->si_provideruri, 0, 0 );
 194 #else
 195                 Debug( LDAP_DEBUG_ANY,
 196                         "do_syncrep1: ldap_initialize failed (%s)\n",
 197                         si->si_provideruri, 0, 0 );
 198 #endif
 199                 return rc;
 200         }
 201
 202         op->o_protocol = LDAP_VERSION3;
 203         ldap_set_option( si->si_ld, LDAP_OPT_PROTOCOL_VERSION, &op->o_protocol );
 204
 205         /* Bind to master */
 206
 207         if ( si->si_tls ) {
 208                 rc = ldap_start_tls_s( si->si_ld, NULL, NULL );
 209                 if( rc != LDAP_SUCCESS ) {
 210 #ifdef NEW_LOGGING
 211                         LDAP_LOG ( OPERATION, ERR, "do_syncrep1: "
 212                                 "%s: ldap_start_tls failed (%d)\n",
 213                                 si->si_tls == SYNCINFO_TLS_CRITICAL ? "Error" : "Warning",
 214                                 rc, 0 );
 215 #else
 216                         Debug( LDAP_DEBUG_ANY,
 217                                 "%s: ldap_start_tls failed (%d)\n",
 218                                 si->si_tls == SYNCINFO_TLS_CRITICAL ? "Error" : "Warning",
 219                                 rc, 0 );
 220 #endif
 221                         if( si->si_tls == SYNCINFO_TLS_CRITICAL ) goto done;
 222                 }
 223         }
 224
 225         if ( si->si_bindmethod == LDAP_AUTH_SASL ) {
 226 #ifdef HAVE_CYRUS_SASL
 227                 void *defaults;
 228
 229                 if ( si->si_secprops != NULL ) {
 230                         rc = ldap_set_option( si->si_ld,
 231                                 LDAP_OPT_X_SASL_SECPROPS, si->si_secprops);
 232
 233                         if( rc != LDAP_OPT_SUCCESS ) {
 234 #ifdef NEW_LOGGING
 235                                 LDAP_LOG ( OPERATION, ERR, "do_bind: Error: "
 236                                         "ldap_set_option(%s,SECPROPS,\"%s\") failed!\n",
 237                                         si->si_provideruri, si->si_secprops, 0 );
 238 #else
 239                                 Debug( LDAP_DEBUG_ANY, "Error: ldap_set_option "
 240                                         "(%s,SECPROPS,\"%s\") failed!\n",
 241                                         si->si_provideruri, si->si_secprops, 0 );
 242 #endif
 243                                 goto done;
 244                         }
 245                 }
 246
 247                 defaults = lutil_sasl_defaults( si->si_ld,
 248                         si->si_saslmech, si->si_realm,
 249                         si->si_authcId, si->si_passwd, si->si_authzId );
 250
 251                 rc = ldap_sasl_interactive_bind_s( si->si_ld,
 252                                 si->si_binddn,
 253                                 si->si_saslmech,
 254                                 NULL, NULL,
 255                                 LDAP_SASL_QUIET,
 256                                 lutil_sasl_interact,
 257                                 defaults );
 258
 259                 lutil_sasl_freedefs( defaults );
 260
 261                 /* FIXME : different error behaviors according to
 262                  *      1) return code
 263                  *      2) on err policy : exit, retry, backoff ...
 264                  */
 265                 if ( rc != LDAP_SUCCESS ) {
 266 #ifdef NEW_LOGGING
 267                         LDAP_LOG ( OPERATION, ERR, "do_syncrep1: "
 268                                 "ldap_sasl_interactive_bind_s failed (%d)\n",
 269                                 rc, 0, 0 );
 270 #else
 271                         Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
 272                                 "ldap_sasl_interactive_bind_s failed (%d)\n",
 273                                 rc, 0, 0 );
 274 #endif
 275                         goto done;
 276                 }
 277 #else /* HAVE_CYRUS_SASL */
 278                 /* Should never get here, we trapped this at config time */
 279                 fprintf( stderr, "not compiled with SASL support\n" );
 280                 rc = LDAP_OTHER;
 281                 goto done;
 282 #endif
 283         } else {
 284                 rc = ldap_bind_s( si->si_ld, si->si_binddn, si->si_passwd, si->si_bindmethod );
 285                 if ( rc != LDAP_SUCCESS ) {
 286 #ifdef NEW_LOGGING
 287                         LDAP_LOG ( OPERATION, ERR, "do_syncrep1: "
 288                                 "ldap_bind_s failed (%d)\n", rc, 0, 0 );
 289 #else
 290                         Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
 291                                 "ldap_bind_s failed (%d)\n", rc, 0, 0 );
 292 #endif
 293                         goto done;
 294                 }
 295         }
 296
 297         /* get syncrepl cookie of shadow replica from subentry */
 298
 299         assert( si->si_rid < 1000 );
 300         syncrepl_cn_bv.bv_val = syncrepl_cbuf;
 301         syncrepl_cn_bv.bv_len = snprintf(syncrepl_cbuf, sizeof(syncrepl_cbuf),
 302                 CN_STR "syncrepl%ld", si->si_rid );
 303         build_new_dn( &op->o_req_ndn, psub, &syncrepl_cn_bv, op->o_tmpmemctx );
 304         op->o_req_dn = op->o_req_ndn;
 305
 306         LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 307                 if ( si->si_rid == sc->rid ) {
 308                         cmdline_cookie_found = 1;
 309                         break;
 310                 }
 311         }
 312
 313         if ( cmdline_cookie_found ) {
 314                 /* cookie is supplied in the command line */
 315                 BerVarray cookie = NULL;
 316                 struct berval cookie_bv;
 317
 318                 LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 319                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
 320
 321                 /* read stored cookie if it exists */
 322                 backend_attribute( op, NULL, &op->o_req_ndn,
 323                         slap_schema.si_ad_syncreplCookie, &cookie );
 324
 325                 if ( !cookie ) {
 326                         /* no stored cookie */
 327                         if ( sc->ctxcsn == NULL ||
 328                                  sc->ctxcsn->bv_val == NULL ) {
 329                                 /* if cmdline cookie does not have ctxcsn */
 330                                 /* component, set it to an initial value */
 331                                 slap_init_sync_cookie_ctxcsn( sc );
 332                         }
 333                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 334                         slap_sync_cookie_free( sc, 1 );
 335                         sc = NULL;
 336                 } else {
 337                         /* stored cookie */
 338                         struct berval newcookie = { 0, NULL };
 339                         ber_dupbv( &cookie_bv, &cookie[0] );
 340                         ber_bvarray_add( &si->si_syncCookie.octet_str, &cookie_bv );
 341                         slap_parse_sync_cookie( &si->si_syncCookie );
 342                         ber_bvarray_free( si->si_syncCookie.octet_str );
 343                         si->si_syncCookie.octet_str = NULL;
 344                         ber_bvarray_free_x( cookie, op->o_tmpmemctx );
 345                         if ( sc->sid != -1 ) {
 346                                 /* command line cookie wins */
 347                                 si->si_syncCookie.sid = sc->sid;
 348                         }
 349                         if ( sc->ctxcsn != NULL ) {
 350                                 /* command line cookie wins */
 351                                 if ( si->si_syncCookie.ctxcsn ) {
 352                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 353                                         si->si_syncCookie.ctxcsn = NULL;
 354                                 }
 355                                 ber_dupbv( &cookie_bv, &sc->ctxcsn[0] );
 356                                 ber_bvarray_add( &si->si_syncCookie.ctxcsn, &cookie_bv );
 357                         }
 358                         if ( sc->rid != -1 ) {
 359                                 /* command line cookie wins */
 360                                 si->si_syncCookie.rid = sc->rid;
 361                         }
 362                         slap_sync_cookie_free( sc, 1 );
 363                         sc = NULL;
 364                         slap_compose_sync_cookie( NULL, &newcookie,
 365                                         &si->si_syncCookie.ctxcsn[0],
 366                                         si->si_syncCookie.sid, si->si_syncCookie.rid );
 367                         ber_bvarray_add( &si->si_syncCookie.octet_str, &newcookie );
 368                 }
 369         } else {
 370                 /* no command line cookie is specified */
 371                 if ( si->si_syncCookie.octet_str == NULL ) {
 372                         BerVarray cookie = NULL;
 373                         struct berval cookie_bv;
 374                         /* try to read stored cookie */
 375                         backend_attribute( op, NULL, &op->o_req_ndn,
 376                                 slap_schema.si_ad_syncreplCookie, &cookie );
 377                         if ( cookie ) {
 378                                 ber_dupbv( &cookie_bv, &cookie[0] );
 379                                 ber_bvarray_add( &si->si_syncCookie.octet_str, &cookie_bv );
 380                                 slap_parse_sync_cookie( &si->si_syncCookie );
 381                                 ber_bvarray_free_x( cookie, op->o_tmpmemctx );
 382                         }
 383                 }
 384         }
 385
 386         rc = ldap_sync_search( si, op->o_tmpmemctx );
 387
 388         if( rc != LDAP_SUCCESS ) {
 389 #ifdef NEW_LOGGING
 390                 LDAP_LOG ( OPERATION, ERR, "do_syncrep1: "
 391                         "ldap_search_ext: %s (%d)\n", ldap_err2string( rc ), rc, 0 );
 392 #else
 393                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
 394                         "ldap_search_ext: %s (%d)\n", ldap_err2string( rc ), rc, 0 );
 395 #endif
 396         }
 397
 398 done:
 399         if ( rc ) {
 400                 if ( si->si_ld ) {
 401                         ldap_unbind( si->si_ld );
 402                         si->si_ld = NULL;
 403                 }
 404         }
 405
 406         return rc;
 407 }
 408
 409 static int
 410 do_syncrep2(
 411         Operation *op,
 412         syncinfo_t *si )
 413 {
 414         LDAPControl     **rctrls = NULL;
 415         LDAPControl     *rctrlp;
 416
 417         BerElementBuffer berbuf;
 418         BerElement      *ber = (BerElement *)&berbuf;
 419
 420         LDAPMessage     *res = NULL;
 421         LDAPMessage     *msg = NULL;
 422
 423         char            *retoid = NULL;
 424         struct berval   *retdata = NULL;
 425
 426         Entry           *entry = NULL;
 427
 428         int             syncstate;
 429         struct berval   syncUUID = { 0, NULL };
 430         struct sync_cookie      syncCookie = { NULL, -1, NULL };
 431         struct sync_cookie      syncCookie_req = { NULL, -1, NULL };
 432         struct berval           cookie = { 0, NULL };
 433
 434         int     rc, err, i;
 435         ber_len_t       len;
 436
 437         slap_callback   cb;
 438
 439         int rc_efree;
 440
 441         struct berval   *psub;
 442         Modifications   *modlist = NULL;
 443
 444         const char              *text;
 445         int                             match;
 446
 447         struct timeval *tout_p = NULL;
 448         struct timeval tout = { 0, 0 };
 449
 450         int             refreshDeletes = 0;
 451         int             refreshDone = 1;
 452         BerVarray syncUUIDs = NULL;
 453         ber_tag_t si_tag;
 454
 455         if ( slapd_abrupt_shutdown ) {
 456                 rc = -2;
 457                 goto done;
 458         }
 459
 460         ber_init2( ber, NULL, LBER_USE_DER );
 461         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 462
 463 #ifdef NEW_LOGGING
 464         LDAP_LOG ( OPERATION, DETAIL1, "do_syncrep2\n", 0, 0, 0 );
 465 #else
 466         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2\n", 0, 0, 0 );
 467 #endif
 468
 469         op->o_callback = &cb;
 470
 471         psub = &si->si_be->be_nsuffix[0];
 472
 473         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 474
 475         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ){
 476                 tout_p = &tout;
 477         } else {
 478                 tout_p = NULL;
 479         }
 480
 481         while (( rc = ldap_result( si->si_ld, LDAP_RES_ANY, LDAP_MSG_ONE, tout_p, &res ))
 482                 > 0 )
 483         {
 484                 if ( slapd_abrupt_shutdown ) {
 485                         rc = -2;
 486                         goto done;
 487                 }
 488                 for( msg = ldap_first_message( si->si_ld, res );
 489                   msg != NULL;
 490                   msg = ldap_next_message( si->si_ld, msg ) )
 491                 {
 492                         switch( ldap_msgtype( msg ) ) {
 493                         case LDAP_RES_SEARCH_ENTRY:
 494                                 ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 495                                 /* we can't work without the control */
 496                                 if ( !rctrls ) {
 497                                         rc = -1;
 498                                         goto done;
 499                                 }
 500                                 rctrlp = *rctrls;
 501                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 502                                 ber_scanf( ber, "{em", &syncstate, &syncUUID );
 503                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 504                                         ber_scanf( ber, "m}", &cookie );
 505                                         if ( cookie.bv_val ) {
 506                                                 struct berval tmp_bv;
 507                                                 ber_dupbv( &tmp_bv, &cookie );
 508                                                 ber_bvarray_add( &syncCookie.octet_str, &tmp_bv );
 509                                         }
 510                                         if ( syncCookie.octet_str &&
 511                                                         syncCookie.octet_str[0].bv_val )
 512                                                 slap_parse_sync_cookie( &syncCookie );
 513                                 }
 514                                 entry = syncrepl_message_to_entry( si, op, msg,
 515                                         &modlist, syncstate );
 516                                 rc_efree = syncrepl_entry( si, op, entry, modlist, syncstate,
 517                                                         &syncUUID, &syncCookie_req );
 518                                 if ( syncCookie.octet_str && syncCookie.octet_str[0].bv_val ) {
 519                                         syncrepl_updateCookie( si, op, psub, &syncCookie );
 520                                 }
 521                                 ldap_controls_free( rctrls );
 522                                 if ( modlist ) {
 523                                         slap_mods_free( modlist );
 524                                 }
 525                                 if ( rc_efree && entry ) {
 526                                         entry_free( entry );
 527                                 }
 528                                 break;
 529
 530                         case LDAP_RES_SEARCH_REFERENCE:
 531 #ifdef NEW_LOGGING
 532                                 LDAP_LOG( OPERATION, ERR,
 533                                         "do_syncrep2 : reference received\n", 0, 0, 0 );
 534 #else
 535                                 Debug( LDAP_DEBUG_ANY,
 536                                         "do_syncrep2 : reference received\n", 0, 0, 0 );
 537 #endif
 538                                 break;
 539
 540                         case LDAP_RES_SEARCH_RESULT:
 541                                 ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 542                                         &rctrls, 0 );
 543                                 if ( rctrls ) {
 544                                         rctrlp = *rctrls;
 545                                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 546
 547                                         ber_scanf( ber, "{" /*"}"*/);
 548                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 549                                         {
 550                                                 ber_scanf( ber, "m", &cookie );
 551                                                 if ( cookie.bv_val ) {
 552                                                         struct berval tmp_bv;
 553                                                         ber_dupbv( &tmp_bv, &cookie );
 554                                                         ber_bvarray_add( &syncCookie.octet_str, &tmp_bv);
 555                                                 }
 556                                                 if ( syncCookie.octet_str &&
 557                                                                  syncCookie.octet_str[0].bv_val )
 558                                                         slap_parse_sync_cookie( &syncCookie );
 559                                         }
 560                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 561                                         {
 562                                                 ber_scanf( ber, "b", &refreshDeletes );
 563                                         }
 564                                         ber_scanf( ber, "}" );
 565                                 }
 566                                 if ( syncCookie_req.ctxcsn == NULL ) {
 567                                         match = -1;
 568                                 } else if ( syncCookie.ctxcsn == NULL ) {
 569                                         match = 1;
 570                                 } else {
 571                                         value_match( &match, slap_schema.si_ad_entryCSN,
 572                                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 573                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 574                                                 &syncCookie_req.ctxcsn[0], &syncCookie.ctxcsn[0], &text );
 575                                 }
 576                                 if ( syncCookie.octet_str && syncCookie.octet_str->bv_val
 577                                          && match < 0 ) {
 578                                         syncrepl_updateCookie( si, op, psub, &syncCookie );
 579                                 }
 580                                 if ( rctrls ) {
 581                                         ldap_controls_free( rctrls );
 582                                 }
 583                                 if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 584                                         /* FIXME : different error behaviors according to
 585                                          *      1) err code : LDAP_BUSY ...
 586                                          *      2) on err policy : stop service, stop sync, retry
 587                                          */
 588                                         if ( refreshDeletes == 0 && match < 0 ) {
 589                                                 syncrepl_del_nonpresent( op, si );
 590                                         } else {
 591                                                 avl_free( si->si_presentlist, avl_ber_bvfree );
 592                                                 si->si_presentlist = NULL;
 593                                         }
 594                                 }
 595                                 rc = -2;
 596                                 goto done;
 597                                 break;
 598
 599                         case LDAP_RES_INTERMEDIATE:
 600                                 rc = ldap_parse_intermediate( si->si_ld, msg,
 601                                         &retoid, &retdata, NULL, 0 );
 602                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 603                                         int             si_refreshDelete = 0;
 604                                         int             si_refreshPresent = 0;
 605                                         ber_init2( ber, retdata, LBER_USE_DER );
 606
 607                                         switch ( si_tag = ber_peek_tag( ber, &len )) {
 608                                         ber_tag_t tag;
 609                                         case LDAP_TAG_SYNC_NEW_COOKIE:
 610                                                 ber_scanf( ber, "tm", &tag, &cookie );
 611                                                 break;
 612                                         case LDAP_TAG_SYNC_REFRESH_DELETE:
 613                                                 si_refreshDelete = 1;
 614                                         case LDAP_TAG_SYNC_REFRESH_PRESENT:
 615                                                 si_refreshPresent = 1;
 616                                                 ber_scanf( ber, "t{", &tag );
 617                                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 618                                                 {
 619                                                         ber_scanf( ber, "m", &cookie );
 620                                                         if ( cookie.bv_val ) {
 621                                                                 struct berval tmp_bv;
 622                                                                 ber_dupbv( &tmp_bv, &cookie );
 623                                                                 ber_bvarray_add( &syncCookie.octet_str, &tmp_bv);
 624                                                         }
 625                                                         if ( syncCookie.octet_str &&
 626                                                                          syncCookie.octet_str[0].bv_val )
 627                                                                 slap_parse_sync_cookie( &syncCookie );
 628                                                 }
 629                                                 if ( ber_peek_tag( ber, &len ) ==
 630                                                                         LDAP_TAG_REFRESHDONE )
 631                                                 {
 632                                                         ber_scanf( ber, "b", &refreshDone );
 633                                                 }
 634                                                 ber_scanf( ber, "}" );
 635                                                 break;
 636                                         case LDAP_TAG_SYNC_ID_SET:
 637                                                 ber_scanf( ber, "t{", &tag );
 638                                                 if ( ber_peek_tag( ber, &len ) ==
 639                                                                 LDAP_TAG_SYNC_COOKIE ) {
 640                                                         ber_scanf( ber, "m", &cookie );
 641                                                         if ( cookie.bv_val ) {
 642                                                                 struct berval tmp_bv;
 643                                                                 ber_dupbv( &tmp_bv, &cookie );
 644                                                                 ber_bvarray_add( &syncCookie.octet_str,
 645                                                                                                  &tmp_bv );
 646                                                         }
 647                                                         if ( syncCookie.octet_str &&
 648                                                                          syncCookie.octet_str[0].bv_val )
 649                                                                 slap_parse_sync_cookie( &syncCookie );
 650                                                 }
 651                                                 if ( ber_peek_tag( ber, &len ) ==
 652                                                                         LDAP_TAG_REFRESHDELETES )
 653                                                 {
 654                                                         ber_scanf( ber, "b", &refreshDeletes );
 655                                                 }
 656                                                 ber_scanf( ber, "[W]", &syncUUIDs );
 657                                                 ber_scanf( ber, "}" );
 658                                                 for ( i = 0; syncUUIDs[i].bv_val; i++ ) {
 659                                                         struct berval *syncuuid_bv;
 660                                                         syncuuid_bv = ber_dupbv( NULL, &syncUUIDs[i] );
 661                                                         avl_insert( &si->si_presentlist,
 662                                                                         (caddr_t) syncuuid_bv,
 663                                                                         syncuuid_cmp, avl_dup_error );
 664                                                 }
 665                                                 ber_memfree_x( syncUUIDs, op->o_tmpmemctx );
 666                                                 break;
 667                                         default:
 668 #ifdef NEW_LOGGING
 669                                         LDAP_LOG( OPERATION, ERR,
 670                                                 "do_syncrep2 : unknown syncinfo tag (%ld)\n",
 671                                                 (long) si_tag, 0, 0 );
 672 #else
 673                                         Debug( LDAP_DEBUG_ANY,
 674                                                 "do_syncrep2 : unknown syncinfo tag (%ld)\n",
 675                                                 (long) si_tag, 0, 0 );
 676 #endif
 677                                                 ldap_memfree( retoid );
 678                                                 ber_bvfree( retdata );
 679                                                 continue;
 680                                         }
 681
 682                                         if ( syncCookie_req.ctxcsn == NULL ) {
 683                                                 match = -1;
 684                                         } else if ( syncCookie.ctxcsn == NULL ) {
 685                                                 match = 1;
 686                                         } else {
 687                                                 value_match( &match, slap_schema.si_ad_entryCSN,
 688                                                         slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 689                                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 690                                                         &syncCookie_req.ctxcsn[0],
 691                                                         &syncCookie.ctxcsn[0], &text );
 692                                         }
 693
 694                                         if ( syncCookie.ctxcsn && syncCookie.ctxcsn[0].bv_val
 695                                                  && match < 0 ) {
 696                                                 syncrepl_updateCookie( si, op, psub, &syncCookie);
 697                                         }
 698
 699                                         if ( si_refreshPresent == 1 ) {
 700                                                 if ( match < 0 ) {
 701                                                         syncrepl_del_nonpresent( op, si );
 702                                                 }
 703                                         }
 704
 705                                         ldap_memfree( retoid );
 706                                         ber_bvfree( retdata );
 707                                         break;
 708                                 } else {
 709 #ifdef NEW_LOGGING
 710                                         LDAP_LOG( OPERATION, ERR,"do_syncrep2 :"
 711                                                 " unknown intermediate "
 712                                                 "response\n", 0, 0, 0 );
 713 #else
 714                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
 715                                                 "unknown intermediate response (%d)\n",
 716                                                 rc, 0, 0 );
 717 #endif
 718                                         ldap_memfree( retoid );
 719                                         ber_bvfree( retdata );
 720                                         break;
 721                                 }
 722                                 break;
 723                         default:
 724 #ifdef NEW_LOGGING
 725                                 LDAP_LOG( OPERATION, ERR, "do_syncrep2 : "
 726                                         "unknown message\n", 0, 0, 0 );
 727 #else
 728                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
 729                                         "unknown message\n", 0, 0, 0 );
 730 #endif
 731                                 break;
 732
 733                         }
 734                         if ( syncCookie.octet_str ) {
 735                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 736                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
 737                                 slap_sync_cookie_free( &syncCookie, 0 );
 738                         }
 739                 }
 740                 ldap_msgfree( res );
 741                 res = NULL;
 742         }
 743
 744         if ( rc == -1 ) {
 745                 const char *errstr;
 746
 747                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
 748                 errstr = ldap_err2string( rc );
 749
 750 #ifdef NEW_LOGGING
 751                 LDAP_LOG( OPERATION, ERR,
 752                         "do_syncrep2 : %s\n", errstr, 0, 0 );
 753 #else
 754                 Debug( LDAP_DEBUG_ANY,
 755                         "do_syncrep2 : %s\n", errstr, 0, 0 );
 756 #endif
 757         }
 758
 759 done:
 760         slap_sync_cookie_free( &syncCookie, 0 );
 761         slap_sync_cookie_free( &syncCookie_req, 0 );
 762
 763         if ( res ) ldap_msgfree( res );
 764
 765         if ( rc && si->si_ld ) {
 766                 ldap_unbind( si->si_ld );
 767                 si->si_ld = NULL;
 768         }
 769
 770         return rc;
 771 }
 772
 773 void *
 774 do_syncrepl(
 775         void    *ctx,
 776         void    *arg )
 777 {
 778         struct re_s* rtask = arg;
 779         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
 780         Connection conn = {0};
 781         Operation op = {0};
 782         int rc = LDAP_SUCCESS;
 783         int first = 0;
 784         int dostop = 0;
 785         ber_socket_t s;
 786
 787 #ifdef NEW_LOGGING
 788         LDAP_LOG ( OPERATION, DETAIL1, "do_syncrepl\n", 0, 0, 0 );
 789 #else
 790         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl\n", 0, 0, 0 );
 791 #endif
 792
 793         if ( si == NULL )
 794                 return NULL;
 795
 796         switch( abs( si->si_type )) {
 797         case LDAP_SYNC_REFRESH_ONLY:
 798         case LDAP_SYNC_REFRESH_AND_PERSIST:
 799                 break;
 800         default:
 801                 return NULL;
 802         }
 803
 804         if ( slapd_abrupt_shutdown && si->si_ld ) {
 805                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 806                 connection_client_stop( s );
 807                 ldap_unbind( si->si_ld );
 808                 si->si_ld = NULL;
 809                 return NULL;
 810         }
 811
 812         conn.c_connid = -1;
 813         conn.c_send_ldap_result = slap_send_ldap_result;
 814         conn.c_send_search_entry = slap_send_search_entry;
 815         conn.c_send_search_reference = slap_send_search_reference;
 816         conn.c_listener = (Listener *)&dummy_list;
 817         conn.c_peer_name = slap_empty_bv;
 818
 819         /* set memory context */
 820         op.o_tmpmemctx = sl_mem_create( SLMALLOC_SLAB_SIZE, ctx );
 821         op.o_tmpmfuncs = &sl_mfuncs;
 822
 823         op.o_dn = si->si_updatedn;
 824         op.o_ndn = si->si_updatedn;
 825         op.o_time = slap_get_time();
 826         op.o_threadctx = ctx;
 827         op.o_managedsait = 1;
 828         op.o_bd = si->si_be;
 829         op.o_conn = &conn;
 830         op.o_connid = op.o_conn->c_connid;
 831
 832         op.o_sync_state.ctxcsn = NULL;
 833         op.o_sync_state.sid = -1;
 834         op.o_sync_state.octet_str = NULL;
 835         op.o_sync_slog_size = -1;
 836         LDAP_STAILQ_FIRST( &op.o_sync_slog_list ) = NULL;
 837         op.o_sync_slog_list.stqh_last = &LDAP_STAILQ_FIRST(&op.o_sync_slog_list);
 838
 839         /* Establish session, do search */
 840         if ( !si->si_ld ) {
 841                 first = 1;
 842                 rc = do_syncrep1( &op, si );
 843         }
 844
 845         /* Process results */
 846         if ( rc == LDAP_SUCCESS ) {
 847                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 848
 849                 rc = do_syncrep2( &op, si );
 850
 851                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 852                         /* If we succeeded, enable the connection for further listening.
 853                          * If we failed, tear down the connection and reschedule.
 854                          */
 855                         if ( rc == LDAP_SUCCESS ) {
 856                                 if ( first ) {
 857                                         rc = connection_client_setup( s, (Listener *)&dummy_list, do_syncrepl,
 858                                                 arg );
 859                                 } else {
 860                                         connection_client_enable( s );
 861                                 }
 862                         } else if ( !first ) {
 863                                 dostop = 1;
 864                         }
 865                 } else {
 866                         if ( rc == -2 ) rc = 0;
 867                 }
 868         }
 869
 870         /* At this point, we have 4 cases:
 871          * 1) for any hard failure, give up and remove this task
 872          * 2) for ServerDown, reschedule this task to run
 873          * 3) for Refresh and Success, reschedule to run
 874          * 4) for Persist and Success, reschedule to defer
 875          */
 876         ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
 877         if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
 878                 ldap_pvt_runqueue_stoptask( &syncrepl_rq, rtask );
 879         }
 880
 881         if ( dostop ) {
 882                 connection_client_stop( s );
 883         }
 884
 885         if ( rc && rc != LDAP_SERVER_DOWN ) {
 886                 ldap_pvt_runqueue_remove( &syncrepl_rq, rtask );
 887         } else {
 888                 if ( rc == LDAP_SERVER_DOWN ||
 889                         si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
 890                         rc = 0;
 891                 } else {
 892                         rc = 1;
 893                 }
 894                 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, rc );
 895         }
 896         ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
 897
 898         return NULL;
 899 }
 900
 901 Entry*
 902 syncrepl_message_to_entry(
 903         syncinfo_t      *si,
 904         Operation       *op,
 905         LDAPMessage     *msg,
 906         Modifications   **modlist,
 907         int             syncstate
 908 )
 909 {
 910         Entry           *e = NULL;
 911         BerElement      *ber = NULL;
 912         Modifications   tmp;
 913         Modifications   *mod;
 914         Modifications   **modtail = modlist;
 915
 916         const char      *text;
 917         char txtbuf[SLAP_TEXT_BUFLEN];
 918         size_t textlen = sizeof txtbuf;
 919
 920         struct berval   bdn = {0, NULL}, dn, ndn;
 921         int             rc;
 922
 923         *modlist = NULL;
 924
 925         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
 926 #ifdef NEW_LOGGING
 927                 LDAP_LOG( OPERATION, ERR,
 928                         "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
 929 #else
 930                 Debug( LDAP_DEBUG_ANY,
 931                         "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
 932 #endif
 933                 return NULL;
 934         }
 935
 936         op->o_tag = LDAP_REQ_ADD;
 937
 938         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
 939
 940         if ( rc != LDAP_SUCCESS ) {
 941 #ifdef NEW_LOGGING
 942                 LDAP_LOG( OPERATION, ERR,
 943                         "syncrepl_message_to_entry : dn get failed (%d)", rc, 0, 0 );
 944 #else
 945                 Debug( LDAP_DEBUG_ANY,
 946                         "syncrepl_message_to_entry : dn get failed (%d)", rc, 0, 0 );
 947 #endif
 948                 return NULL;
 949         }
 950
 951         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
 952         ber_dupbv( &op->o_req_dn, &dn );
 953         ber_dupbv( &op->o_req_ndn, &ndn );
 954         sl_free( ndn.bv_val, op->o_tmpmemctx );
 955         sl_free( dn.bv_val, op->o_tmpmemctx );
 956
 957         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE )
 958         {
 959                 return NULL;
 960         }
 961
 962         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ) );
 963         e->e_name = op->o_req_dn;
 964         e->e_nname = op->o_req_ndn;
 965
 966         while ( ber_remaining( ber ) ) {
 967                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
 968                         LBER_ERROR ) || ( tmp.sml_type.bv_val == NULL ))
 969                 {
 970                         break;
 971                 }
 972
 973                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ));
 974
 975                 mod->sml_op = LDAP_MOD_REPLACE;
 976                 mod->sml_next = NULL;
 977                 mod->sml_desc = NULL;
 978                 mod->sml_type = tmp.sml_type;
 979                 mod->sml_bvalues = tmp.sml_bvalues;
 980                 mod->sml_nvalues = NULL;
 981
 982                 *modtail = mod;
 983                 modtail = &mod->sml_next;
 984         }
 985
 986         if ( *modlist == NULL ) {
 987 #ifdef NEW_LOGGING
 988                 LDAP_LOG( OPERATION, ERR,
 989                                 "syncrepl_message_to_entry: no attributes\n", 0, 0, 0 );
 990 #else
 991                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: no attributes\n",
 992                                 0, 0, 0 );
 993 #endif
 994         }
 995
 996         rc = slap_mods_check( *modlist, 1, &text, txtbuf, textlen, NULL );
 997
 998         if ( rc != LDAP_SUCCESS ) {
 999 #ifdef NEW_LOGGING
1000                 LDAP_LOG( OPERATION, ERR,
1001                                 "syncrepl_message_to_entry: mods check (%s)\n", text, 0, 0 );
1002 #else
1003                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods check (%s)\n",
1004                                 text, 0, 0 );
1005 #endif
1006                 goto done;
1007         }
1008
1009         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1010         if( rc != LDAP_SUCCESS ) {
1011 #ifdef NEW_LOGGING
1012                 LDAP_LOG( OPERATION, ERR,
1013                                 "syncrepl_message_to_entry: mods2entry (%s)\n", text, 0, 0 );
1014 #else
1015                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods2entry (%s)\n",
1016                                 text, 0, 0 );
1017 #endif
1018         }
1019
1020 done:
1021         ber_free ( ber, 0 );
1022         if ( rc != LDAP_SUCCESS ) {
1023                 entry_free( e );
1024                 e = NULL;
1025         }
1026
1027         return e;
1028 }
1029
1030 int
1031 syncrepl_entry(
1032         syncinfo_t* si,
1033         Operation *op,
1034         Entry* e,
1035         Modifications* modlist,
1036         int syncstate,
1037         struct berval* syncUUID,
1038         struct sync_cookie* syncCookie_req
1039 )
1040 {
1041         Backend *be = op->o_bd;
1042         slap_callback   cb;
1043         struct berval   *syncuuid_bv = NULL;
1044         struct berval   syncUUID_strrep = { 0, NULL };
1045
1046         SlapReply       rs = {REP_RESULT};
1047         Filter f = {0};
1048         AttributeAssertion ava = {0};
1049         int rc = LDAP_SUCCESS;
1050         int ret = LDAP_SUCCESS;
1051         const char *text;
1052
1053         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ))
1054         {
1055                 syncuuid_bv = ber_dupbv( NULL, syncUUID );
1056                 avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1057                         syncuuid_cmp, avl_dup_error );
1058         }
1059
1060         if ( syncstate == LDAP_SYNC_PRESENT ) {
1061                 return e ? 1 : 0;
1062         }
1063
1064         f.f_choice = LDAP_FILTER_EQUALITY;
1065         f.f_ava = &ava;
1066         ava.aa_desc = slap_schema.si_ad_entryUUID;
1067         slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1068         ava.aa_value = *syncUUID;
1069         op->ors_filter = &f;
1070
1071         op->ors_filterstr.bv_len = (sizeof("entryUUID=")-1) + syncUUID->bv_len;
1072         op->ors_filterstr.bv_val = (char *) sl_malloc(
1073                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1074         AC_MEMCPY( op->ors_filterstr.bv_val, "entryUUID=", sizeof("entryUUID=")-1 );
1075         AC_MEMCPY( &op->ors_filterstr.bv_val[sizeof("entryUUID=")-1],
1076                 syncUUID->bv_val, syncUUID->bv_len );
1077         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1078
1079         op->ors_scope = LDAP_SCOPE_SUBTREE;
1080
1081         /* get syncrepl cookie of shadow replica from subentry */
1082         op->o_req_dn = si->si_base;
1083         op->o_req_ndn = si->si_base;
1084
1085         /* set callback function */
1086         op->o_callback = &cb;
1087         cb.sc_response = dn_callback;
1088         cb.sc_private = si;
1089
1090         si->si_syncUUID_ndn.bv_val = NULL;
1091
1092         rc = be->be_search( op, &rs );
1093
1094         if ( op->ors_filterstr.bv_val ) {
1095                 sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1096         }
1097
1098         cb.sc_response = null_callback;
1099         cb.sc_private = si;
1100
1101         if ( rc == LDAP_SUCCESS && si->si_syncUUID_ndn.bv_val )
1102         {
1103                 char *subseq_ptr;
1104
1105                 if ( syncstate != LDAP_SYNC_DELETE ) {
1106                         op->o_no_psearch = 1;
1107                 }
1108
1109                 ber_dupbv( &op->o_sync_csn, syncCookie_req->ctxcsn );
1110                 if ( op->o_sync_csn.bv_val ) {
1111                         subseq_ptr = strstr( op->o_sync_csn.bv_val, "#0000" );
1112                         subseq_ptr += 4;
1113                         *subseq_ptr = '1';
1114                 }
1115
1116                 op->o_req_dn = si->si_syncUUID_ndn;
1117                 op->o_req_ndn = si->si_syncUUID_ndn;
1118                 op->o_tag = LDAP_REQ_DELETE;
1119                 rc = be->be_delete( op, &rs );
1120                 op->o_no_psearch = 0;
1121         }
1122
1123         switch ( syncstate ) {
1124         case LDAP_SYNC_ADD:
1125         case LDAP_SYNC_MODIFY:
1126                 if ( rc == LDAP_SUCCESS ||
1127                          rc == LDAP_REFERRAL ||
1128                          rc == LDAP_NO_SUCH_OBJECT )
1129                 {
1130                         attr_delete( &e->e_attrs, slap_schema.si_ad_entryUUID );
1131                         attr_merge_one( e, slap_schema.si_ad_entryUUID,
1132                                 syncUUID, &ava.aa_value );
1133
1134                         op->o_tag = LDAP_REQ_ADD;
1135                         op->ora_e = e;
1136                         op->o_req_dn = e->e_name;
1137                         op->o_req_ndn = e->e_nname;
1138                         rc = be->be_add( op, &rs );
1139
1140                         if ( rc != LDAP_SUCCESS ) {
1141                                 if ( rc == LDAP_ALREADY_EXISTS ) {
1142                                         op->o_tag = LDAP_REQ_MODIFY;
1143                                         op->orm_modlist = modlist;
1144                                         op->o_req_dn = e->e_name;
1145                                         op->o_req_ndn = e->e_nname;
1146                                         rc = be->be_modify( op, &rs );
1147                                         if ( rc != LDAP_SUCCESS ) {
1148 #ifdef NEW_LOGGING
1149                                                 LDAP_LOG( OPERATION, ERR,
1150                                                         "syncrepl_entry : be_modify failed (%d)\n",
1151                                                         rc, 0, 0 );
1152 #else
1153                                                 Debug( LDAP_DEBUG_ANY,
1154                                                         "syncrepl_entry : be_modify failed (%d)\n",
1155                                                         rc, 0, 0 );
1156 #endif
1157                                         }
1158                                         ret = 1;
1159                                         goto done;
1160                                 } else if ( rc == LDAP_REFERRAL || rc == LDAP_NO_SUCH_OBJECT ) {
1161                                         syncrepl_add_glue( op, e );
1162                                         ret = 0;
1163                                         goto done;
1164                                 } else {
1165 #ifdef NEW_LOGGING
1166                                         LDAP_LOG( OPERATION, ERR,
1167                                                 "syncrepl_entry : be_add failed (%d)\n",
1168                                                 rc, 0, 0 );
1169 #else
1170                                         Debug( LDAP_DEBUG_ANY,
1171                                                 "syncrepl_entry : be_add failed (%d)\n",
1172                                                 rc, 0, 0 );
1173 #endif
1174                                         ret = 1;
1175                                         goto done;
1176                                 }
1177                         } else {
1178                                 be_entry_release_w( op, e );
1179                                 ret = 0;
1180                                 goto done;
1181                         }
1182                 } else {
1183 #ifdef NEW_LOGGING
1184                         LDAP_LOG( OPERATION, ERR,
1185                                 "syncrepl_entry : be_search failed (%d)\n", rc, 0, 0 );
1186 #else
1187                         Debug( LDAP_DEBUG_ANY,
1188                                 "syncrepl_entry : be_search failed (%d)\n", rc, 0, 0 );
1189 #endif
1190                         ret = 1;
1191                         goto done;
1192                 }
1193
1194         case LDAP_SYNC_DELETE :
1195                 /* Already deleted */
1196                 ret = 1;
1197                 goto done;
1198
1199         default :
1200 #ifdef NEW_LOGGING
1201                 LDAP_LOG( OPERATION, ERR,
1202                         "syncrepl_entry : unknown syncstate\n", 0, 0, 0 );
1203 #else
1204                 Debug( LDAP_DEBUG_ANY,
1205                         "syncrepl_entry : unknown syncstate\n", 0, 0, 0 );
1206 #endif
1207                 ret = 1;
1208                 goto done;
1209         }
1210
1211 done :
1212
1213         if ( syncUUID_strrep.bv_val ) {
1214                 ber_memfree_x( syncUUID_strrep.bv_val, op->o_tmpmemctx );
1215         }
1216         if ( si->si_syncUUID_ndn.bv_val ) {
1217                 ber_memfree_x( si->si_syncUUID_ndn.bv_val, op->o_tmpmemctx );
1218         }
1219         return ret;
1220 }
1221
1222 static void
1223 syncrepl_del_nonpresent(
1224         Operation *op,
1225         syncinfo_t *si
1226 )
1227 {
1228         Backend* be = op->o_bd;
1229         slap_callback   cb;
1230         SlapReply       rs = {REP_RESULT};
1231         struct nonpresent_entry *np_list, *np_prev;
1232
1233         op->o_req_dn = si->si_base;
1234         op->o_req_ndn = si->si_base;
1235
1236         cb.sc_response = nonpresent_callback;
1237         cb.sc_private = si;
1238
1239         op->o_callback = &cb;
1240         op->o_tag = LDAP_REQ_SEARCH;
1241         op->ors_scope = si->si_scope;
1242         op->ors_deref = LDAP_DEREF_NEVER;
1243         op->ors_slimit = 0;
1244         op->ors_tlimit = 0;
1245         op->ors_attrsonly = 0;
1246         op->ors_attrs = NULL;
1247         op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
1248         op->ors_filterstr = si->si_filterstr;
1249
1250         op->o_nocaching = 1;
1251         be->be_search( op, &rs );
1252         op->o_nocaching = 0;
1253
1254         if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
1255
1256         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
1257                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
1258                 while ( np_list != NULL ) {
1259                         LDAP_LIST_REMOVE( np_list, npe_link );
1260                         np_prev = np_list;
1261                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
1262                         op->o_tag = LDAP_REQ_DELETE;
1263                         op->o_callback = &cb;
1264                         cb.sc_response = null_callback;
1265                         cb.sc_private = si;
1266                         op->o_req_dn = *np_prev->npe_name;
1267                         op->o_req_ndn = *np_prev->npe_nname;
1268                         op->o_bd->be_delete( op, &rs );
1269                         ber_bvfree( np_prev->npe_name );
1270                         ber_bvfree( np_prev->npe_nname );
1271                         op->o_req_dn.bv_val = NULL;
1272                         op->o_req_ndn.bv_val = NULL;
1273                         ch_free( np_prev );
1274                 }
1275         }
1276
1277         return;
1278 }
1279
1280
1281 static struct berval gcbva[] = {
1282         BER_BVC("top"),
1283         BER_BVC("glue")
1284 };
1285
1286 void
1287 syncrepl_add_glue(
1288         Operation* op,
1289         Entry *e
1290 )
1291 {
1292         Backend *be = op->o_bd;
1293         slap_callback cb;
1294         Attribute       *a;
1295         int     rc;
1296         int suffrdns;
1297         int i;
1298         struct berval dn = {0, NULL};
1299         struct berval ndn = {0, NULL};
1300         Entry   *glue;
1301         SlapReply       rs = {REP_RESULT};
1302         char    *ptr, *comma;
1303
1304         op->o_tag = LDAP_REQ_ADD;
1305         op->o_callback = &cb;
1306         cb.sc_response = null_callback;
1307         cb.sc_private = NULL;
1308
1309         dn = e->e_name;
1310         ndn = e->e_nname;
1311
1312         /* count RDNs in suffix */
1313         if ( be->be_nsuffix[0].bv_len ) {
1314                 for (i=0, ptr=be->be_nsuffix[0].bv_val; ptr; ptr=strchr( ptr, ',' )) {
1315                         ptr++;
1316                         i++;
1317                 }
1318                 suffrdns = i;
1319         } else {
1320                 /* suffix is "" */
1321                 suffrdns = 0;
1322         }
1323
1324         /* Start with BE suffix */
1325         for ( i = 0, ptr = NULL; i < suffrdns; i++ ) {
1326                 comma = strrchr(dn.bv_val, ',');
1327                 if ( ptr ) *ptr = ',';
1328                 if ( comma ) *comma = '\0';
1329                 ptr = comma;
1330         }
1331         if ( ptr ) {
1332                 *ptr++ = ',';
1333                 dn.bv_len -= ptr - dn.bv_val;
1334                 dn.bv_val = ptr;
1335         }
1336         /* the normalizedDNs are always the same length, no counting
1337          * required.
1338          */
1339         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
1340                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
1341                 ndn.bv_len = be->be_nsuffix[0].bv_len;
1342         }
1343
1344         while ( ndn.bv_val > e->e_nname.bv_val ) {
1345                 glue = (Entry *) ch_calloc( 1, sizeof(Entry) );
1346                 ber_dupbv( &glue->e_name, &dn );
1347                 ber_dupbv( &glue->e_nname, &ndn );
1348
1349                 a = ch_calloc( 1, sizeof( Attribute ));
1350                 a->a_desc = slap_schema.si_ad_objectClass;
1351
1352                 a->a_vals = ch_calloc( 3, sizeof( struct berval ));
1353                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
1354                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
1355                 a->a_vals[2].bv_len = 0;
1356                 a->a_vals[2].bv_val = NULL;
1357
1358                 a->a_nvals = a->a_vals;
1359
1360                 a->a_next = glue->e_attrs;
1361                 glue->e_attrs = a;
1362
1363                 a = ch_calloc( 1, sizeof( Attribute ));
1364                 a->a_desc = slap_schema.si_ad_structuralObjectClass;
1365
1366                 a->a_vals = ch_calloc( 2, sizeof( struct berval ));
1367                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
1368                 a->a_vals[1].bv_len = 0;
1369                 a->a_vals[1].bv_val = NULL;
1370
1371                 a->a_nvals = a->a_vals;
1372
1373                 a->a_next = glue->e_attrs;
1374                 glue->e_attrs = a;
1375
1376                 op->o_req_dn = glue->e_name;
1377                 op->o_req_ndn = glue->e_nname;
1378                 op->ora_e = glue;
1379                 rc = be->be_add ( op, &rs );
1380                 if ( rc == LDAP_SUCCESS ) {
1381                         be_entry_release_w( op, glue );
1382                 } else {
1383                 /* incl. ALREADY EXIST */
1384                         entry_free( glue );
1385                 }
1386
1387                 /* Move to next child */
1388                 for (ptr = dn.bv_val-2; ptr > e->e_name.bv_val && *ptr != ','; ptr--) {
1389                         /* empty */
1390                 }
1391                 if ( ptr == e->e_name.bv_val ) break;
1392                 dn.bv_val = ++ptr;
1393                 dn.bv_len = e->e_name.bv_len - (ptr-e->e_name.bv_val);
1394                 for( ptr = ndn.bv_val-2;
1395                         ptr > e->e_nname.bv_val && *ptr != ',';
1396                         ptr--)
1397                 {
1398                         /* empty */
1399                 }
1400                 ndn.bv_val = ++ptr;
1401                 ndn.bv_len = e->e_nname.bv_len - (ptr-e->e_nname.bv_val);
1402         }
1403
1404         op->o_req_dn = e->e_name;
1405         op->o_req_ndn = e->e_nname;
1406         op->ora_e = e;
1407         rc = be->be_add ( op, &rs );
1408         if ( rc == LDAP_SUCCESS ) {
1409                 be_entry_release_w( op, e );
1410         } else {
1411                 entry_free( e );
1412         }
1413
1414         return;
1415 }
1416
1417 static struct berval ocbva[] = {
1418         BER_BVC("top"),
1419         BER_BVC("subentry"),
1420         BER_BVC("syncConsumerSubentry"),
1421         BER_BVNULL
1422 };
1423
1424 static struct berval cnbva[] = {
1425         BER_BVNULL,
1426         BER_BVNULL
1427 };
1428
1429 static struct berval ssbva[] = {
1430         BER_BVC("{}"),
1431         BER_BVNULL
1432 };
1433
1434 static struct berval scbva[] = {
1435         BER_BVNULL,
1436         BER_BVNULL
1437 };
1438
1439 void
1440 syncrepl_updateCookie(
1441         syncinfo_t *si,
1442         Operation *op,
1443         struct berval *pdn,
1444         struct sync_cookie *syncCookie
1445 )
1446 {
1447         Backend *be = op->o_bd;
1448         Modifications *ml;
1449         Modifications *mlnext;
1450         Modifications *mod;
1451         Modifications *modlist = NULL;
1452         Modifications **modtail = &modlist;
1453
1454         const char      *text;
1455         char txtbuf[SLAP_TEXT_BUFLEN];
1456         size_t textlen = sizeof txtbuf;
1457
1458         Entry* e = NULL;
1459         int rc;
1460
1461         char syncrepl_cbuf[sizeof(CN_STR SYNCREPL_STR)];
1462         struct berval slap_syncrepl_dn_bv = BER_BVNULL;
1463         struct berval slap_syncrepl_cn_bv = BER_BVNULL;
1464
1465         slap_callback cb;
1466         SlapReply       rs = {REP_RESULT};
1467
1468         slap_sync_cookie_free( &si->si_syncCookie, 0 );
1469         slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
1470
1471         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1472         mod->sml_op = LDAP_MOD_REPLACE;
1473         mod->sml_desc = slap_schema.si_ad_objectClass;
1474         mod->sml_type = mod->sml_desc->ad_cname;
1475         mod->sml_bvalues = ocbva;
1476         *modtail = mod;
1477         modtail = &mod->sml_next;
1478
1479         ber_dupbv( &cnbva[0], (struct berval *) &slap_syncrepl_bvc );
1480         assert( si->si_rid < 1000 );
1481         cnbva[0].bv_len = snprintf( cnbva[0].bv_val,
1482                 slap_syncrepl_bvc.bv_len,
1483                 "syncrepl%ld", si->si_rid );
1484         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1485         mod->sml_op = LDAP_MOD_REPLACE;
1486         mod->sml_desc = slap_schema.si_ad_cn;
1487         mod->sml_type = mod->sml_desc->ad_cname;
1488         mod->sml_bvalues = cnbva;
1489         *modtail = mod;
1490         modtail = &mod->sml_next;
1491
1492         if ( scbva[0].bv_val ) ch_free( scbva[0].bv_val );
1493         ber_dupbv( &scbva[0], &si->si_syncCookie.octet_str[0] );
1494         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1495         mod->sml_op = LDAP_MOD_REPLACE;
1496         mod->sml_desc = slap_schema.si_ad_syncreplCookie;
1497         mod->sml_type = mod->sml_desc->ad_cname;
1498         mod->sml_bvalues = scbva;
1499         *modtail = mod;
1500         modtail = &mod->sml_next;
1501
1502         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1503         mod->sml_op = LDAP_MOD_REPLACE;
1504         mod->sml_desc = slap_schema.si_ad_subtreeSpecification;
1505         mod->sml_type = mod->sml_desc->ad_cname;
1506         mod->sml_bvalues = ssbva;
1507         *modtail = mod;
1508         modtail = &mod->sml_next;
1509
1510         mlnext = mod;
1511
1512         op->o_tag = LDAP_REQ_ADD;
1513         rc = slap_mods_opattrs( op, modlist, modtail,
1514                                                          &text,txtbuf, textlen );
1515
1516         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
1517                 ml->sml_op = LDAP_MOD_REPLACE;
1518         }
1519
1520         if( rc != LDAP_SUCCESS ) {
1521 #ifdef NEW_LOGGING
1522                 LDAP_LOG( OPERATION, ERR,
1523                         "syncrepl_updateCookie: mods opattrs (%s)\n", text, 0, 0 );
1524 #else
1525                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods opattrs (%s)\n",
1526                          text, 0, 0 );
1527 #endif
1528         }
1529
1530         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
1531
1532         slap_syncrepl_cn_bv.bv_val = syncrepl_cbuf;
1533         assert( si->si_rid < 1000 );
1534         slap_syncrepl_cn_bv.bv_len = snprintf( slap_syncrepl_cn_bv.bv_val,
1535                 slap_syncrepl_cn_bvc.bv_len,
1536                 "cn=syncrepl%ld", si->si_rid );
1537
1538         build_new_dn( &slap_syncrepl_dn_bv, pdn, &slap_syncrepl_cn_bv,
1539                 op->o_tmpmemctx );
1540         ber_dupbv( &e->e_name, &slap_syncrepl_dn_bv );
1541         ber_dupbv( &e->e_nname, &slap_syncrepl_dn_bv );
1542
1543         if ( slap_syncrepl_dn_bv.bv_val ) {
1544                 sl_free( slap_syncrepl_dn_bv.bv_val, op->o_tmpmemctx );
1545         }
1546
1547         e->e_attrs = NULL;
1548
1549         rc = slap_mods2entry( modlist, &e, 1, 1, &text, txtbuf, textlen );
1550
1551         if( rc != LDAP_SUCCESS ) {
1552 #ifdef NEW_LOGGING
1553                 LDAP_LOG( OPERATION, ERR,
1554                         "syncrepl_updateCookie: mods2entry (%s)\n", text, 0, 0 );
1555 #else
1556                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods2entry (%s)\n",
1557                          text, 0, 0 );
1558 #endif
1559         }
1560
1561         cb.sc_response = null_callback;
1562         cb.sc_private = si;
1563
1564         op->o_callback = &cb;
1565         op->o_req_dn = e->e_name;
1566         op->o_req_ndn = e->e_nname;
1567
1568         /* update persistent cookie */
1569 update_cookie_retry:
1570         op->o_tag = LDAP_REQ_MODIFY;
1571         op->orm_modlist = modlist;
1572         rc = be->be_modify( op, &rs );
1573
1574         if ( rc != LDAP_SUCCESS ) {
1575                 if ( rc == LDAP_REFERRAL ||
1576                          rc == LDAP_NO_SUCH_OBJECT ) {
1577                         op->o_tag = LDAP_REQ_ADD;
1578                         op->ora_e = e;
1579                         rc = be->be_add( op, &rs );
1580                         if ( rc != LDAP_SUCCESS ) {
1581                                 if ( rc == LDAP_ALREADY_EXISTS ) {
1582                                         goto update_cookie_retry;
1583                                 } else if ( rc == LDAP_REFERRAL ||
1584                                                         rc == LDAP_NO_SUCH_OBJECT ) {
1585 #ifdef NEW_LOGGING
1586                                         LDAP_LOG( OPERATION, ERR,
1587                                                 "cookie will be non-persistent\n",
1588                                                 0, 0, 0 );
1589 #else
1590                                         Debug( LDAP_DEBUG_ANY,
1591                                                 "cookie will be non-persistent\n",
1592                                                 0, 0, 0 );
1593 #endif
1594                                 } else {
1595 #ifdef NEW_LOGGING
1596                                         LDAP_LOG( OPERATION, ERR,
1597                                                 "be_add failed (%d)\n",
1598                                                 rc, 0, 0 );
1599 #else
1600                                         Debug( LDAP_DEBUG_ANY,
1601                                                 "be_add failed (%d)\n",
1602                                                 rc, 0, 0 );
1603 #endif
1604                                 }
1605                         } else {
1606                                 be_entry_release_w( op, e );
1607                                 goto done;
1608                         }
1609                 } else {
1610 #ifdef NEW_LOGGING
1611                         LDAP_LOG( OPERATION, ERR,
1612                                 "be_modify failed (%d)\n", rc, 0, 0 );
1613 #else
1614                         Debug( LDAP_DEBUG_ANY,
1615                                 "be_modify failed (%d)\n", rc, 0, 0 );
1616 #endif
1617                 }
1618         }
1619
1620         if ( e != NULL ) {
1621                 entry_free( e );
1622         }
1623
1624 done :
1625
1626         if ( cnbva[0].bv_val ) {
1627                 ch_free( cnbva[0].bv_val );
1628                 cnbva[0].bv_val = NULL;
1629         }
1630         if ( scbva[0].bv_val ) {
1631                 ch_free( scbva[0].bv_val );
1632                 scbva[0].bv_val = NULL;
1633         }
1634
1635         if ( mlnext->sml_next ) {
1636                 slap_mods_free( mlnext->sml_next );
1637                 mlnext->sml_next = NULL;
1638         }
1639
1640         for (ml = modlist ; ml != NULL; ml = mlnext ) {
1641                 mlnext = ml->sml_next;
1642                 free( ml );
1643         }
1644
1645         return;
1646 }
1647
1648 static int
1649 dn_callback(
1650         Operation*      op,
1651         SlapReply*      rs
1652 )
1653 {
1654         syncinfo_t *si = op->o_callback->sc_private;
1655
1656         if ( rs->sr_type == REP_SEARCH ) {
1657                 if ( si->si_syncUUID_ndn.bv_val != NULL ) {
1658 #ifdef NEW_LOGGING
1659                         LDAP_LOG( OPERATION, ERR,
1660                                 "dn_callback : multiple entries match dn\n", 0, 0, 0 );
1661 #else
1662                         Debug( LDAP_DEBUG_ANY,
1663                                 "dn_callback : multiple entries match dn\n", 0, 0, 0 );
1664 #endif
1665                 } else {
1666                         ber_dupbv_x( &si->si_syncUUID_ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
1667                 }
1668         }
1669
1670         return LDAP_SUCCESS;
1671 }
1672
1673 static int
1674 nonpresent_callback(
1675         Operation*      op,
1676         SlapReply*      rs
1677 )
1678 {
1679         syncinfo_t *si = op->o_callback->sc_private;
1680         Attribute *a;
1681         int count = 0;
1682         struct berval* present_uuid = NULL;
1683         struct nonpresent_entry *np_entry;
1684
1685         if ( rs->sr_type == REP_RESULT ) {
1686                 count = avl_free( si->si_presentlist, avl_ber_bvfree );
1687                 si->si_presentlist = NULL;
1688
1689         } else if ( rs->sr_type == REP_SEARCH ) {
1690                 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
1691
1692                 if ( a == NULL ) return 0;
1693
1694                 present_uuid = avl_find( si->si_presentlist, &a->a_vals[0],
1695                         syncuuid_cmp );
1696
1697                 if ( present_uuid == NULL ) {
1698                         np_entry = (struct nonpresent_entry *)
1699                                 ch_calloc( 1, sizeof( struct nonpresent_entry ));
1700                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
1701                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
1702                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
1703
1704                 } else {
1705                         avl_delete( &si->si_presentlist,
1706                                         &a->a_vals[0], syncuuid_cmp );
1707                         ch_free( present_uuid->bv_val );
1708                         ch_free( present_uuid );
1709                 }
1710         }
1711         return LDAP_SUCCESS;
1712 }
1713
1714 static int
1715 null_callback(
1716         Operation*      op,
1717         SlapReply*      rs
1718 )
1719 {
1720         if ( rs->sr_err != LDAP_SUCCESS &&
1721                 rs->sr_err != LDAP_REFERRAL &&
1722                 rs->sr_err != LDAP_ALREADY_EXISTS &&
1723                 rs->sr_err != LDAP_NO_SUCH_OBJECT )
1724         {
1725 #ifdef NEW_LOGGING
1726                 LDAP_LOG( OPERATION, ERR,
1727                         "null_callback : error code 0x%x\n",
1728                         rs->sr_err, 0, 0 );
1729 #else
1730                 Debug( LDAP_DEBUG_ANY,
1731                         "null_callback : error code 0x%x\n",
1732                         rs->sr_err, 0, 0 );
1733 #endif
1734         }
1735         return LDAP_SUCCESS;
1736 }
1737
1738 Entry *
1739 slap_create_syncrepl_entry(
1740         Backend *be,
1741         struct berval *context_csn,
1742         struct berval *rdn,
1743         struct berval *cn
1744 )
1745 {
1746         Entry* e;
1747
1748         struct berval bv;
1749
1750         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
1751
1752         attr_merge( e, slap_schema.si_ad_objectClass, ocbva, NULL );
1753
1754         attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
1755                 &ocbva[1], NULL );
1756
1757         attr_merge_one( e, slap_schema.si_ad_cn, cn, NULL );
1758
1759         if ( context_csn ) {
1760                 attr_merge_one( e, slap_schema.si_ad_syncreplCookie,
1761                         context_csn, NULL );
1762         }
1763
1764         bv.bv_val = "{}";
1765         bv.bv_len = sizeof("{}")-1;
1766         attr_merge_one( e, slap_schema.si_ad_subtreeSpecification, &bv, NULL );
1767
1768         build_new_dn( &e->e_name, &be->be_nsuffix[0], rdn, NULL );
1769         ber_dupbv( &e->e_nname, &e->e_name );
1770
1771         return e;
1772 }
1773
1774 struct berval *
1775 slap_uuidstr_from_normalized(
1776         struct berval* uuidstr,
1777         struct berval* normalized,
1778         void *ctx )
1779 {
1780         struct berval *new;
1781         unsigned char nibble;
1782         int i, d = 0;
1783
1784         if ( normalized == NULL )
1785                 return NULL;
1786
1787         if ( normalized->bv_len != 16 ) {
1788                 return NULL;
1789         }
1790
1791         if ( uuidstr ) {
1792                 new = uuidstr;
1793         } else {
1794                 new = (struct berval *)sl_malloc( sizeof(struct berval), ctx );
1795         }
1796
1797         new->bv_len = 36;
1798
1799         if (( new->bv_val = sl_malloc( new->bv_len + 1, ctx )) == NULL) {
1800                 if ( !uuidstr )
1801                         sl_free( new, ctx );
1802                 return NULL;
1803         }
1804
1805         for ( i = 0; i < 16; i++ ) {
1806                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
1807                         new->bv_val[(i<<1)+d] = '-';
1808                         d += 1;
1809                 }
1810
1811                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
1812                 if ( nibble < 10 ) {
1813                         new->bv_val[(i<<1)+d] = nibble + '0';
1814                 } else {
1815                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
1816                 }
1817
1818                 nibble = (normalized->bv_val[i]) & 0xF;
1819                 if ( nibble < 10 ) {
1820                         new->bv_val[(i<<1)+d+1] = nibble + '0';
1821                 } else {
1822                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
1823                 }
1824         }
1825
1826         new->bv_val[new->bv_len] = '\0';
1827
1828         return new;
1829 }
1830
1831 static int
1832 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
1833 {
1834         const struct berval *uuid1 = v_uuid1;
1835         const struct berval *uuid2 = v_uuid2;
1836         int rc = uuid1->bv_len - uuid2->bv_len;
1837         if ( rc ) return rc;
1838         return ( strcmp( uuid1->bv_val, uuid2->bv_val ) );
1839 }
1840
1841 static void
1842 avl_ber_bvfree( void *bv )
1843 {
1844         if( bv == NULL ) {
1845                 return;
1846         }
1847         if ( ((struct berval *)bv)->bv_val != NULL ) {
1848                 ch_free ( ((struct berval *)bv)->bv_val );
1849         }
1850         ch_free ( (char *) bv );
1851 }
1852