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 2003-2004 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         int rc_efree;
 438
 439         struct berval   *psub;
 440         Modifications   *modlist = NULL;
 441
 442         const char              *text;
 443         int                             match;
 444
 445         struct timeval *tout_p = NULL;
 446         struct timeval tout = { 0, 0 };
 447
 448         int             refreshDeletes = 0;
 449         int             refreshDone = 1;
 450         BerVarray syncUUIDs = NULL;
 451         ber_tag_t si_tag;
 452
 453         if ( slapd_shutdown ) {
 454                 rc = -2;
 455                 goto done;
 456         }
 457
 458         ber_init2( ber, NULL, LBER_USE_DER );
 459         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 460
 461 #ifdef NEW_LOGGING
 462         LDAP_LOG ( OPERATION, DETAIL1, "do_syncrep2\n", 0, 0, 0 );
 463 #else
 464         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2\n", 0, 0, 0 );
 465 #endif
 466
 467         psub = &si->si_be->be_nsuffix[0];
 468
 469         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 470
 471         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ){
 472                 tout_p = &tout;
 473         } else {
 474                 tout_p = NULL;
 475         }
 476
 477         while (( rc = ldap_result( si->si_ld, LDAP_RES_ANY, LDAP_MSG_ONE, tout_p, &res ))
 478                 > 0 )
 479         {
 480                 if ( slapd_shutdown ) {
 481                         rc = -2;
 482                         goto done;
 483                 }
 484                 for( msg = ldap_first_message( si->si_ld, res );
 485                   msg != NULL;
 486                   msg = ldap_next_message( si->si_ld, msg ) )
 487                 {
 488                         switch( ldap_msgtype( msg ) ) {
 489                         case LDAP_RES_SEARCH_ENTRY:
 490                                 ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 491                                 /* we can't work without the control */
 492                                 if ( !rctrls ) {
 493                                         rc = -1;
 494                                         goto done;
 495                                 }
 496                                 rctrlp = *rctrls;
 497                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 498                                 ber_scanf( ber, "{em", &syncstate, &syncUUID );
 499                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 500                                         ber_scanf( ber, "m}", &cookie );
 501                                         if ( cookie.bv_val ) {
 502                                                 struct berval tmp_bv;
 503                                                 ber_dupbv( &tmp_bv, &cookie );
 504                                                 ber_bvarray_add( &syncCookie.octet_str, &tmp_bv );
 505                                         }
 506                                         if ( syncCookie.octet_str &&
 507                                                         syncCookie.octet_str[0].bv_val )
 508                                                 slap_parse_sync_cookie( &syncCookie );
 509                                 }
 510                                 entry = syncrepl_message_to_entry( si, op, msg,
 511                                         &modlist, syncstate );
 512                                 rc_efree = syncrepl_entry( si, op, entry, modlist, syncstate,
 513                                                         &syncUUID, &syncCookie_req );
 514                                 if ( syncCookie.octet_str && syncCookie.octet_str[0].bv_val ) {
 515                                         syncrepl_updateCookie( si, op, psub, &syncCookie );
 516                                 }
 517                                 ldap_controls_free( rctrls );
 518                                 if ( modlist ) {
 519                                         slap_mods_free( modlist );
 520                                 }
 521                                 if ( rc_efree && entry ) {
 522                                         entry_free( entry );
 523                                 }
 524                                 break;
 525
 526                         case LDAP_RES_SEARCH_REFERENCE:
 527 #ifdef NEW_LOGGING
 528                                 LDAP_LOG( OPERATION, ERR,
 529                                         "do_syncrep2 : reference received\n", 0, 0, 0 );
 530 #else
 531                                 Debug( LDAP_DEBUG_ANY,
 532                                         "do_syncrep2 : reference received\n", 0, 0, 0 );
 533 #endif
 534                                 break;
 535
 536                         case LDAP_RES_SEARCH_RESULT:
 537                                 ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 538                                         &rctrls, 0 );
 539                                 if ( rctrls ) {
 540                                         rctrlp = *rctrls;
 541                                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 542
 543                                         ber_scanf( ber, "{" /*"}"*/);
 544                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 545                                         {
 546                                                 ber_scanf( ber, "m", &cookie );
 547                                                 if ( cookie.bv_val ) {
 548                                                         struct berval tmp_bv;
 549                                                         ber_dupbv( &tmp_bv, &cookie );
 550                                                         ber_bvarray_add( &syncCookie.octet_str, &tmp_bv);
 551                                                 }
 552                                                 if ( syncCookie.octet_str &&
 553                                                                  syncCookie.octet_str[0].bv_val )
 554                                                         slap_parse_sync_cookie( &syncCookie );
 555                                         }
 556                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 557                                         {
 558                                                 ber_scanf( ber, "b", &refreshDeletes );
 559                                         }
 560                                         ber_scanf( ber, "}" );
 561                                 }
 562                                 if ( syncCookie_req.ctxcsn == NULL ) {
 563                                         match = -1;
 564                                 } else if ( syncCookie.ctxcsn == NULL ) {
 565                                         match = 1;
 566                                 } else {
 567                                         value_match( &match, slap_schema.si_ad_entryCSN,
 568                                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 569                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 570                                                 &syncCookie_req.ctxcsn[0], &syncCookie.ctxcsn[0], &text );
 571                                 }
 572                                 if ( syncCookie.octet_str && syncCookie.octet_str->bv_val
 573                                          && match < 0 ) {
 574                                         syncrepl_updateCookie( si, op, psub, &syncCookie );
 575                                 }
 576                                 if ( rctrls ) {
 577                                         ldap_controls_free( rctrls );
 578                                 }
 579                                 if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 580                                         /* FIXME : different error behaviors according to
 581                                          *      1) err code : LDAP_BUSY ...
 582                                          *      2) on err policy : stop service, stop sync, retry
 583                                          */
 584                                         if ( refreshDeletes == 0 && match < 0 ) {
 585                                                 syncrepl_del_nonpresent( op, si );
 586                                         } else {
 587                                                 avl_free( si->si_presentlist, avl_ber_bvfree );
 588                                                 si->si_presentlist = NULL;
 589                                         }
 590                                 }
 591                                 rc = -2;
 592                                 goto done;
 593                                 break;
 594
 595                         case LDAP_RES_INTERMEDIATE:
 596                                 rc = ldap_parse_intermediate( si->si_ld, msg,
 597                                         &retoid, &retdata, NULL, 0 );
 598                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 599                                         int             si_refreshDelete = 0;
 600                                         int             si_refreshPresent = 0;
 601                                         ber_init2( ber, retdata, LBER_USE_DER );
 602
 603                                         switch ( si_tag = ber_peek_tag( ber, &len )) {
 604                                         ber_tag_t tag;
 605                                         case LDAP_TAG_SYNC_NEW_COOKIE:
 606                                                 ber_scanf( ber, "tm", &tag, &cookie );
 607                                                 break;
 608                                         case LDAP_TAG_SYNC_REFRESH_DELETE:
 609                                                 si_refreshDelete = 1;
 610                                         case LDAP_TAG_SYNC_REFRESH_PRESENT:
 611                                                 si_refreshPresent = 1;
 612                                                 ber_scanf( ber, "t{", &tag );
 613                                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 614                                                 {
 615                                                         ber_scanf( ber, "m", &cookie );
 616                                                         if ( cookie.bv_val ) {
 617                                                                 struct berval tmp_bv;
 618                                                                 ber_dupbv( &tmp_bv, &cookie );
 619                                                                 ber_bvarray_add( &syncCookie.octet_str, &tmp_bv);
 620                                                         }
 621                                                         if ( syncCookie.octet_str &&
 622                                                                          syncCookie.octet_str[0].bv_val )
 623                                                                 slap_parse_sync_cookie( &syncCookie );
 624                                                 }
 625                                                 if ( ber_peek_tag( ber, &len ) ==
 626                                                                         LDAP_TAG_REFRESHDONE )
 627                                                 {
 628                                                         ber_scanf( ber, "b", &refreshDone );
 629                                                 }
 630                                                 ber_scanf( ber, "}" );
 631                                                 break;
 632                                         case LDAP_TAG_SYNC_ID_SET:
 633                                                 ber_scanf( ber, "t{", &tag );
 634                                                 if ( ber_peek_tag( ber, &len ) ==
 635                                                                 LDAP_TAG_SYNC_COOKIE ) {
 636                                                         ber_scanf( ber, "m", &cookie );
 637                                                         if ( cookie.bv_val ) {
 638                                                                 struct berval tmp_bv;
 639                                                                 ber_dupbv( &tmp_bv, &cookie );
 640                                                                 ber_bvarray_add( &syncCookie.octet_str,
 641                                                                                                  &tmp_bv );
 642                                                         }
 643                                                         if ( syncCookie.octet_str &&
 644                                                                          syncCookie.octet_str[0].bv_val )
 645                                                                 slap_parse_sync_cookie( &syncCookie );
 646                                                 }
 647                                                 if ( ber_peek_tag( ber, &len ) ==
 648                                                                         LDAP_TAG_REFRESHDELETES )
 649                                                 {
 650                                                         ber_scanf( ber, "b", &refreshDeletes );
 651                                                 }
 652                                                 ber_scanf( ber, "[W]", &syncUUIDs );
 653                                                 ber_scanf( ber, "}" );
 654                                                 for ( i = 0; syncUUIDs[i].bv_val; i++ ) {
 655                                                         struct berval *syncuuid_bv;
 656                                                         syncuuid_bv = ber_dupbv( NULL, &syncUUIDs[i] );
 657                                                         avl_insert( &si->si_presentlist,
 658                                                                         (caddr_t) syncuuid_bv,
 659                                                                         syncuuid_cmp, avl_dup_error );
 660                                                 }
 661                                                 ber_memfree_x( syncUUIDs, op->o_tmpmemctx );
 662                                                 break;
 663                                         default:
 664 #ifdef NEW_LOGGING
 665                                         LDAP_LOG( OPERATION, ERR,
 666                                                 "do_syncrep2 : unknown syncinfo tag (%ld)\n",
 667                                                 (long) si_tag, 0, 0 );
 668 #else
 669                                         Debug( LDAP_DEBUG_ANY,
 670                                                 "do_syncrep2 : unknown syncinfo tag (%ld)\n",
 671                                                 (long) si_tag, 0, 0 );
 672 #endif
 673                                                 ldap_memfree( retoid );
 674                                                 ber_bvfree( retdata );
 675                                                 continue;
 676                                         }
 677
 678                                         if ( syncCookie_req.ctxcsn == NULL ) {
 679                                                 match = -1;
 680                                         } else if ( syncCookie.ctxcsn == NULL ) {
 681                                                 match = 1;
 682                                         } else {
 683                                                 value_match( &match, slap_schema.si_ad_entryCSN,
 684                                                         slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 685                                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 686                                                         &syncCookie_req.ctxcsn[0],
 687                                                         &syncCookie.ctxcsn[0], &text );
 688                                         }
 689
 690                                         if ( syncCookie.ctxcsn && syncCookie.ctxcsn[0].bv_val
 691                                                  && match < 0 ) {
 692                                                 syncrepl_updateCookie( si, op, psub, &syncCookie);
 693                                         }
 694
 695                                         if ( si_refreshPresent == 1 ) {
 696                                                 if ( match < 0 ) {
 697                                                         syncrepl_del_nonpresent( op, si );
 698                                                 }
 699                                         }
 700
 701                                         ldap_memfree( retoid );
 702                                         ber_bvfree( retdata );
 703                                         break;
 704                                 } else {
 705 #ifdef NEW_LOGGING
 706                                         LDAP_LOG( OPERATION, ERR,"do_syncrep2 :"
 707                                                 " unknown intermediate "
 708                                                 "response\n", 0, 0, 0 );
 709 #else
 710                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
 711                                                 "unknown intermediate response (%d)\n",
 712                                                 rc, 0, 0 );
 713 #endif
 714                                         ldap_memfree( retoid );
 715                                         ber_bvfree( retdata );
 716                                         break;
 717                                 }
 718                                 break;
 719                         default:
 720 #ifdef NEW_LOGGING
 721                                 LDAP_LOG( OPERATION, ERR, "do_syncrep2 : "
 722                                         "unknown message\n", 0, 0, 0 );
 723 #else
 724                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
 725                                         "unknown message\n", 0, 0, 0 );
 726 #endif
 727                                 break;
 728
 729                         }
 730                         if ( syncCookie.octet_str ) {
 731                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 732                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
 733                                 slap_sync_cookie_free( &syncCookie, 0 );
 734                         }
 735                 }
 736                 ldap_msgfree( res );
 737                 res = NULL;
 738         }
 739
 740         if ( rc == -1 ) {
 741                 const char *errstr;
 742
 743                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
 744                 errstr = ldap_err2string( rc );
 745
 746 #ifdef NEW_LOGGING
 747                 LDAP_LOG( OPERATION, ERR,
 748                         "do_syncrep2 : %s\n", errstr, 0, 0 );
 749 #else
 750                 Debug( LDAP_DEBUG_ANY,
 751                         "do_syncrep2 : %s\n", errstr, 0, 0 );
 752 #endif
 753         }
 754
 755 done:
 756         slap_sync_cookie_free( &syncCookie, 0 );
 757         slap_sync_cookie_free( &syncCookie_req, 0 );
 758
 759         if ( res ) ldap_msgfree( res );
 760
 761         if ( rc && si->si_ld ) {
 762                 ldap_unbind( si->si_ld );
 763                 si->si_ld = NULL;
 764         }
 765
 766         return rc;
 767 }
 768
 769 void *
 770 do_syncrepl(
 771         void    *ctx,
 772         void    *arg )
 773 {
 774         struct re_s* rtask = arg;
 775         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
 776         Connection conn = {0};
 777         Operation op = {0};
 778         int rc = LDAP_SUCCESS;
 779         int first = 0;
 780         int dostop = 0;
 781         ber_socket_t s;
 782
 783 #ifdef NEW_LOGGING
 784         LDAP_LOG ( OPERATION, DETAIL1, "do_syncrepl\n", 0, 0, 0 );
 785 #else
 786         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl\n", 0, 0, 0 );
 787 #endif
 788
 789         if ( si == NULL )
 790                 return NULL;
 791
 792         switch( abs( si->si_type )) {
 793         case LDAP_SYNC_REFRESH_ONLY:
 794         case LDAP_SYNC_REFRESH_AND_PERSIST:
 795                 break;
 796         default:
 797                 return NULL;
 798         }
 799
 800         if ( slapd_shutdown && si->si_ld ) {
 801                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 802                 connection_client_stop( s );
 803                 ldap_unbind( si->si_ld );
 804                 si->si_ld = NULL;
 805                 return NULL;
 806         }
 807
 808         conn.c_connid = -1;
 809         conn.c_send_ldap_result = slap_send_ldap_result;
 810         conn.c_send_search_entry = slap_send_search_entry;
 811         conn.c_send_search_reference = slap_send_search_reference;
 812         conn.c_listener = (Listener *)&dummy_list;
 813         conn.c_peer_name = slap_empty_bv;
 814
 815         /* set memory context */
 816         op.o_tmpmemctx = sl_mem_create( SLMALLOC_SLAB_SIZE, ctx );
 817         op.o_tmpmfuncs = &sl_mfuncs;
 818
 819         op.o_dn = si->si_updatedn;
 820         op.o_ndn = si->si_updatedn;
 821         op.o_time = slap_get_time();
 822         op.o_threadctx = ctx;
 823         op.o_managedsait = 1;
 824         op.o_bd = si->si_be;
 825         op.o_conn = &conn;
 826         op.o_connid = op.o_conn->c_connid;
 827
 828         op.o_sync_state.ctxcsn = NULL;
 829         op.o_sync_state.sid = -1;
 830         op.o_sync_state.octet_str = NULL;
 831         op.o_sync_slog_size = -1;
 832         LDAP_STAILQ_FIRST( &op.o_sync_slog_list ) = NULL;
 833         op.o_sync_slog_list.stqh_last = &LDAP_STAILQ_FIRST(&op.o_sync_slog_list);
 834
 835         /* Establish session, do search */
 836         if ( !si->si_ld ) {
 837                 first = 1;
 838                 rc = do_syncrep1( &op, si );
 839         }
 840
 841         /* Process results */
 842         if ( rc == LDAP_SUCCESS ) {
 843                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 844
 845                 rc = do_syncrep2( &op, si );
 846
 847                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 848                         /* If we succeeded, enable the connection for further listening.
 849                          * If we failed, tear down the connection and reschedule.
 850                          */
 851                         if ( rc == LDAP_SUCCESS ) {
 852                                 if ( first ) {
 853                                         rc = connection_client_setup( s, (Listener *)&dummy_list, do_syncrepl,
 854                                                 arg );
 855                                 } else {
 856                                         connection_client_enable( s );
 857                                 }
 858                         } else if ( !first ) {
 859                                 dostop = 1;
 860                         }
 861                 } else {
 862                         if ( rc == -2 ) rc = 0;
 863                 }
 864         }
 865
 866         /* At this point, we have 4 cases:
 867          * 1) for any hard failure, give up and remove this task
 868          * 2) for ServerDown, reschedule this task to run
 869          * 3) for Refresh and Success, reschedule to run
 870          * 4) for Persist and Success, reschedule to defer
 871          */
 872         ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
 873         if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
 874                 ldap_pvt_runqueue_stoptask( &syncrepl_rq, rtask );
 875         }
 876
 877         if ( dostop ) {
 878                 connection_client_stop( s );
 879         }
 880
 881         if ( rc && rc != LDAP_SERVER_DOWN ) {
 882                 ldap_pvt_runqueue_remove( &syncrepl_rq, rtask );
 883         } else {
 884                 if ( rc == LDAP_SERVER_DOWN ||
 885                         si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
 886                         rc = 0;
 887                 } else {
 888                         rc = 1;
 889                 }
 890                 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, rc );
 891         }
 892         ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
 893
 894         return NULL;
 895 }
 896
 897 Entry*
 898 syncrepl_message_to_entry(
 899         syncinfo_t      *si,
 900         Operation       *op,
 901         LDAPMessage     *msg,
 902         Modifications   **modlist,
 903         int             syncstate
 904 )
 905 {
 906         Entry           *e = NULL;
 907         BerElement      *ber = NULL;
 908         Modifications   tmp;
 909         Modifications   *mod;
 910         Modifications   **modtail = modlist;
 911
 912         const char      *text;
 913         char txtbuf[SLAP_TEXT_BUFLEN];
 914         size_t textlen = sizeof txtbuf;
 915
 916         struct berval   bdn = {0, NULL}, dn, ndn;
 917         int             rc;
 918
 919         *modlist = NULL;
 920
 921         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
 922 #ifdef NEW_LOGGING
 923                 LDAP_LOG( OPERATION, ERR,
 924                         "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
 925 #else
 926                 Debug( LDAP_DEBUG_ANY,
 927                         "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
 928 #endif
 929                 return NULL;
 930         }
 931
 932         op->o_tag = LDAP_REQ_ADD;
 933
 934         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
 935
 936         if ( rc != LDAP_SUCCESS ) {
 937 #ifdef NEW_LOGGING
 938                 LDAP_LOG( OPERATION, ERR,
 939                         "syncrepl_message_to_entry : dn get failed (%d)", rc, 0, 0 );
 940 #else
 941                 Debug( LDAP_DEBUG_ANY,
 942                         "syncrepl_message_to_entry : dn get failed (%d)", rc, 0, 0 );
 943 #endif
 944                 return NULL;
 945         }
 946
 947         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
 948         ber_dupbv( &op->o_req_dn, &dn );
 949         ber_dupbv( &op->o_req_ndn, &ndn );
 950         sl_free( ndn.bv_val, op->o_tmpmemctx );
 951         sl_free( dn.bv_val, op->o_tmpmemctx );
 952
 953         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE )
 954         {
 955                 return NULL;
 956         }
 957
 958         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ) );
 959         e->e_name = op->o_req_dn;
 960         e->e_nname = op->o_req_ndn;
 961
 962         while ( ber_remaining( ber ) ) {
 963                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
 964                         LBER_ERROR ) || ( tmp.sml_type.bv_val == NULL ))
 965                 {
 966                         break;
 967                 }
 968
 969                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ));
 970
 971                 mod->sml_op = LDAP_MOD_REPLACE;
 972                 mod->sml_next = NULL;
 973                 mod->sml_desc = NULL;
 974                 mod->sml_type = tmp.sml_type;
 975                 mod->sml_bvalues = tmp.sml_bvalues;
 976                 mod->sml_nvalues = NULL;
 977
 978                 *modtail = mod;
 979                 modtail = &mod->sml_next;
 980         }
 981
 982         if ( *modlist == NULL ) {
 983 #ifdef NEW_LOGGING
 984                 LDAP_LOG( OPERATION, ERR,
 985                                 "syncrepl_message_to_entry: no attributes\n", 0, 0, 0 );
 986 #else
 987                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: no attributes\n",
 988                                 0, 0, 0 );
 989 #endif
 990         }
 991
 992         rc = slap_mods_check( *modlist, 1, &text, txtbuf, textlen, NULL );
 993
 994         if ( rc != LDAP_SUCCESS ) {
 995 #ifdef NEW_LOGGING
 996                 LDAP_LOG( OPERATION, ERR,
 997                                 "syncrepl_message_to_entry: mods check (%s)\n", text, 0, 0 );
 998 #else
 999                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods check (%s)\n",
1000                                 text, 0, 0 );
1001 #endif
1002                 goto done;
1003         }
1004
1005         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1006         if( rc != LDAP_SUCCESS ) {
1007 #ifdef NEW_LOGGING
1008                 LDAP_LOG( OPERATION, ERR,
1009                                 "syncrepl_message_to_entry: mods2entry (%s)\n", text, 0, 0 );
1010 #else
1011                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods2entry (%s)\n",
1012                                 text, 0, 0 );
1013 #endif
1014         }
1015
1016 done:
1017         ber_free ( ber, 0 );
1018         if ( rc != LDAP_SUCCESS ) {
1019                 entry_free( e );
1020                 e = NULL;
1021         }
1022
1023         return e;
1024 }
1025
1026 int
1027 syncrepl_entry(
1028         syncinfo_t* si,
1029         Operation *op,
1030         Entry* e,
1031         Modifications* modlist,
1032         int syncstate,
1033         struct berval* syncUUID,
1034         struct sync_cookie* syncCookie_req
1035 )
1036 {
1037         Backend *be = op->o_bd;
1038         slap_callback   cb = { NULL };
1039         struct berval   *syncuuid_bv = NULL;
1040         struct berval   syncUUID_strrep = { 0, NULL };
1041
1042         SlapReply       rs = {REP_RESULT};
1043         Filter f = {0};
1044         AttributeAssertion ava = {0};
1045         int rc = LDAP_SUCCESS;
1046         int ret = LDAP_SUCCESS;
1047         const char *text;
1048
1049         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD ))
1050         {
1051                 syncuuid_bv = ber_dupbv( NULL, syncUUID );
1052                 avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1053                         syncuuid_cmp, avl_dup_error );
1054         }
1055
1056         if ( syncstate == LDAP_SYNC_PRESENT ) {
1057                 return e ? 1 : 0;
1058         }
1059
1060         f.f_choice = LDAP_FILTER_EQUALITY;
1061         f.f_ava = &ava;
1062         ava.aa_desc = slap_schema.si_ad_entryUUID;
1063         slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1064         ava.aa_value = *syncUUID;
1065         op->ors_filter = &f;
1066
1067         op->ors_filterstr.bv_len = (sizeof("entryUUID=")-1) + syncUUID->bv_len;
1068         op->ors_filterstr.bv_val = (char *) sl_malloc(
1069                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1070         AC_MEMCPY( op->ors_filterstr.bv_val, "entryUUID=", sizeof("entryUUID=")-1 );
1071         AC_MEMCPY( &op->ors_filterstr.bv_val[sizeof("entryUUID=")-1],
1072                 syncUUID->bv_val, syncUUID->bv_len );
1073         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1074
1075         op->ors_scope = LDAP_SCOPE_SUBTREE;
1076
1077         /* get syncrepl cookie of shadow replica from subentry */
1078         op->o_req_dn = si->si_base;
1079         op->o_req_ndn = si->si_base;
1080
1081         /* set callback function */
1082         op->o_callback = &cb;
1083         cb.sc_response = dn_callback;
1084         cb.sc_private = si;
1085
1086         si->si_syncUUID_ndn.bv_val = NULL;
1087
1088         rc = be->be_search( op, &rs );
1089
1090         if ( op->ors_filterstr.bv_val ) {
1091                 sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1092         }
1093
1094         cb.sc_response = null_callback;
1095         cb.sc_private = si;
1096
1097         if ( rc == LDAP_SUCCESS && si->si_syncUUID_ndn.bv_val )
1098         {
1099                 char *subseq_ptr;
1100
1101                 if ( syncstate != LDAP_SYNC_DELETE ) {
1102                         op->o_no_psearch = 1;
1103                 }
1104
1105                 ber_dupbv( &op->o_sync_csn, syncCookie_req->ctxcsn );
1106                 if ( op->o_sync_csn.bv_val ) {
1107                         subseq_ptr = strstr( op->o_sync_csn.bv_val, "#0000" );
1108                         subseq_ptr += 4;
1109                         *subseq_ptr = '1';
1110                 }
1111
1112                 op->o_req_dn = si->si_syncUUID_ndn;
1113                 op->o_req_ndn = si->si_syncUUID_ndn;
1114                 op->o_tag = LDAP_REQ_DELETE;
1115                 rc = be->be_delete( op, &rs );
1116                 op->o_no_psearch = 0;
1117         }
1118
1119         switch ( syncstate ) {
1120         case LDAP_SYNC_ADD:
1121         case LDAP_SYNC_MODIFY:
1122                 if ( rc == LDAP_SUCCESS ||
1123                          rc == LDAP_REFERRAL ||
1124                          rc == LDAP_NO_SUCH_OBJECT ||
1125                          rc == LDAP_NOT_ALLOWED_ON_NONLEAF )
1126                 {
1127                         attr_delete( &e->e_attrs, slap_schema.si_ad_entryUUID );
1128                         attr_merge_one( e, slap_schema.si_ad_entryUUID,
1129                                 syncUUID, &ava.aa_value );
1130
1131                         op->o_tag = LDAP_REQ_ADD;
1132                         op->ora_e = e;
1133                         op->o_req_dn = e->e_name;
1134                         op->o_req_ndn = e->e_nname;
1135                         rc = be->be_add( op, &rs );
1136
1137                         if ( rc != LDAP_SUCCESS ) {
1138                                 if ( rc == LDAP_ALREADY_EXISTS ) {
1139                                         op->o_tag = LDAP_REQ_MODIFY;
1140                                         op->orm_modlist = modlist;
1141                                         op->o_req_dn = e->e_name;
1142                                         op->o_req_ndn = e->e_nname;
1143                                         rc = be->be_modify( op, &rs );
1144                                         if ( rc != LDAP_SUCCESS ) {
1145 #ifdef NEW_LOGGING
1146                                                 LDAP_LOG( OPERATION, ERR,
1147                                                         "syncrepl_entry : be_modify failed (%d)\n",
1148                                                         rc, 0, 0 );
1149 #else
1150                                                 Debug( LDAP_DEBUG_ANY,
1151                                                         "syncrepl_entry : be_modify failed (%d)\n",
1152                                                         rc, 0, 0 );
1153 #endif
1154                                         }
1155                                         ret = 1;
1156                                         goto done;
1157                                 } else if ( rc == LDAP_REFERRAL || rc == LDAP_NO_SUCH_OBJECT ) {
1158                                         syncrepl_add_glue( op, e );
1159                                         ret = 0;
1160                                         goto done;
1161                                 } else {
1162 #ifdef NEW_LOGGING
1163                                         LDAP_LOG( OPERATION, ERR,
1164                                                 "syncrepl_entry : be_add failed (%d)\n",
1165                                                 rc, 0, 0 );
1166 #else
1167                                         Debug( LDAP_DEBUG_ANY,
1168                                                 "syncrepl_entry : be_add failed (%d)\n",
1169                                                 rc, 0, 0 );
1170 #endif
1171                                         ret = 1;
1172                                         goto done;
1173                                 }
1174                         } else {
1175                                 be_entry_release_w( op, e );
1176                                 ret = 0;
1177                                 goto done;
1178                         }
1179                 } else {
1180 #ifdef NEW_LOGGING
1181                         LDAP_LOG( OPERATION, ERR,
1182                                 "syncrepl_entry : be_search failed (%d)\n", rc, 0, 0 );
1183 #else
1184                         Debug( LDAP_DEBUG_ANY,
1185                                 "syncrepl_entry : be_search failed (%d)\n", rc, 0, 0 );
1186 #endif
1187                         ret = 1;
1188                         goto done;
1189                 }
1190
1191         case LDAP_SYNC_DELETE :
1192                 /* Already deleted */
1193                 ret = 1;
1194                 goto done;
1195
1196         default :
1197 #ifdef NEW_LOGGING
1198                 LDAP_LOG( OPERATION, ERR,
1199                         "syncrepl_entry : unknown syncstate\n", 0, 0, 0 );
1200 #else
1201                 Debug( LDAP_DEBUG_ANY,
1202                         "syncrepl_entry : unknown syncstate\n", 0, 0, 0 );
1203 #endif
1204                 ret = 1;
1205                 goto done;
1206         }
1207
1208 done :
1209
1210         if ( syncUUID_strrep.bv_val ) {
1211                 ber_memfree_x( syncUUID_strrep.bv_val, op->o_tmpmemctx );
1212         }
1213         if ( si->si_syncUUID_ndn.bv_val ) {
1214                 ber_memfree_x( si->si_syncUUID_ndn.bv_val, op->o_tmpmemctx );
1215         }
1216         return ret;
1217 }
1218
1219 static void
1220 syncrepl_del_nonpresent(
1221         Operation *op,
1222         syncinfo_t *si
1223 )
1224 {
1225         Backend* be = op->o_bd;
1226         slap_callback   cb = { NULL };
1227         SlapReply       rs = {REP_RESULT};
1228         struct nonpresent_entry *np_list, *np_prev;
1229
1230         op->o_req_dn = si->si_base;
1231         op->o_req_ndn = si->si_base;
1232
1233         cb.sc_response = nonpresent_callback;
1234         cb.sc_private = si;
1235
1236         op->o_callback = &cb;
1237         op->o_tag = LDAP_REQ_SEARCH;
1238         op->ors_scope = si->si_scope;
1239         op->ors_deref = LDAP_DEREF_NEVER;
1240         op->ors_slimit = 0;
1241         op->ors_tlimit = 0;
1242         op->ors_attrsonly = 0;
1243         op->ors_attrs = NULL;
1244         op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
1245         op->ors_filterstr = si->si_filterstr;
1246
1247         op->o_nocaching = 1;
1248         be->be_search( op, &rs );
1249         op->o_nocaching = 0;
1250
1251         if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
1252
1253         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
1254                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
1255                 while ( np_list != NULL ) {
1256                         LDAP_LIST_REMOVE( np_list, npe_link );
1257                         np_prev = np_list;
1258                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
1259                         op->o_tag = LDAP_REQ_DELETE;
1260                         op->o_callback = &cb;
1261                         cb.sc_response = null_callback;
1262                         cb.sc_private = si;
1263                         op->o_req_dn = *np_prev->npe_name;
1264                         op->o_req_ndn = *np_prev->npe_nname;
1265                         op->o_bd->be_delete( op, &rs );
1266                         ber_bvfree( np_prev->npe_name );
1267                         ber_bvfree( np_prev->npe_nname );
1268                         op->o_req_dn.bv_val = NULL;
1269                         op->o_req_ndn.bv_val = NULL;
1270                         ch_free( np_prev );
1271                 }
1272         }
1273
1274         return;
1275 }
1276
1277
1278 static struct berval gcbva[] = {
1279         BER_BVC("top"),
1280         BER_BVC("glue")
1281 };
1282
1283 void
1284 syncrepl_add_glue(
1285         Operation* op,
1286         Entry *e
1287 )
1288 {
1289         Backend *be = op->o_bd;
1290         slap_callback cb = { NULL };
1291         Attribute       *a;
1292         int     rc;
1293         int suffrdns;
1294         int i;
1295         struct berval dn = {0, NULL};
1296         struct berval ndn = {0, NULL};
1297         Entry   *glue;
1298         SlapReply       rs = {REP_RESULT};
1299         char    *ptr, *comma;
1300
1301         op->o_tag = LDAP_REQ_ADD;
1302         op->o_callback = &cb;
1303         cb.sc_response = null_callback;
1304         cb.sc_private = NULL;
1305
1306         dn = e->e_name;
1307         ndn = e->e_nname;
1308
1309         /* count RDNs in suffix */
1310         if ( be->be_nsuffix[0].bv_len ) {
1311                 for (i=0, ptr=be->be_nsuffix[0].bv_val; ptr; ptr=strchr( ptr, ',' )) {
1312                         ptr++;
1313                         i++;
1314                 }
1315                 suffrdns = i;
1316         } else {
1317                 /* suffix is "" */
1318                 suffrdns = 0;
1319         }
1320
1321         /* Start with BE suffix */
1322         for ( i = 0, ptr = NULL; i < suffrdns; i++ ) {
1323                 comma = strrchr(dn.bv_val, ',');
1324                 if ( ptr ) *ptr = ',';
1325                 if ( comma ) *comma = '\0';
1326                 ptr = comma;
1327         }
1328         if ( ptr ) {
1329                 *ptr++ = ',';
1330                 dn.bv_len -= ptr - dn.bv_val;
1331                 dn.bv_val = ptr;
1332         }
1333         /* the normalizedDNs are always the same length, no counting
1334          * required.
1335          */
1336         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
1337                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
1338                 ndn.bv_len = be->be_nsuffix[0].bv_len;
1339         }
1340
1341         while ( ndn.bv_val > e->e_nname.bv_val ) {
1342                 glue = (Entry *) ch_calloc( 1, sizeof(Entry) );
1343                 ber_dupbv( &glue->e_name, &dn );
1344                 ber_dupbv( &glue->e_nname, &ndn );
1345
1346                 a = ch_calloc( 1, sizeof( Attribute ));
1347                 a->a_desc = slap_schema.si_ad_objectClass;
1348
1349                 a->a_vals = ch_calloc( 3, sizeof( struct berval ));
1350                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
1351                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
1352                 a->a_vals[2].bv_len = 0;
1353                 a->a_vals[2].bv_val = NULL;
1354
1355                 a->a_nvals = a->a_vals;
1356
1357                 a->a_next = glue->e_attrs;
1358                 glue->e_attrs = a;
1359
1360                 a = ch_calloc( 1, sizeof( Attribute ));
1361                 a->a_desc = slap_schema.si_ad_structuralObjectClass;
1362
1363                 a->a_vals = ch_calloc( 2, sizeof( struct berval ));
1364                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
1365                 a->a_vals[1].bv_len = 0;
1366                 a->a_vals[1].bv_val = NULL;
1367
1368                 a->a_nvals = a->a_vals;
1369
1370                 a->a_next = glue->e_attrs;
1371                 glue->e_attrs = a;
1372
1373                 op->o_req_dn = glue->e_name;
1374                 op->o_req_ndn = glue->e_nname;
1375                 op->ora_e = glue;
1376                 rc = be->be_add ( op, &rs );
1377                 if ( rc == LDAP_SUCCESS ) {
1378                         be_entry_release_w( op, glue );
1379                 } else {
1380                 /* incl. ALREADY EXIST */
1381                         entry_free( glue );
1382                 }
1383
1384                 /* Move to next child */
1385                 for (ptr = dn.bv_val-2; ptr > e->e_name.bv_val && *ptr != ','; ptr--) {
1386                         /* empty */
1387                 }
1388                 if ( ptr == e->e_name.bv_val ) break;
1389                 dn.bv_val = ++ptr;
1390                 dn.bv_len = e->e_name.bv_len - (ptr-e->e_name.bv_val);
1391                 for( ptr = ndn.bv_val-2;
1392                         ptr > e->e_nname.bv_val && *ptr != ',';
1393                         ptr--)
1394                 {
1395                         /* empty */
1396                 }
1397                 ndn.bv_val = ++ptr;
1398                 ndn.bv_len = e->e_nname.bv_len - (ptr-e->e_nname.bv_val);
1399         }
1400
1401         op->o_req_dn = e->e_name;
1402         op->o_req_ndn = e->e_nname;
1403         op->ora_e = e;
1404         rc = be->be_add ( op, &rs );
1405         if ( rc == LDAP_SUCCESS ) {
1406                 be_entry_release_w( op, e );
1407         } else {
1408                 entry_free( e );
1409         }
1410
1411         return;
1412 }
1413
1414 static struct berval ocbva[] = {
1415         BER_BVC("top"),
1416         BER_BVC("subentry"),
1417         BER_BVC("syncConsumerSubentry"),
1418         BER_BVNULL
1419 };
1420
1421 static struct berval cnbva[] = {
1422         BER_BVNULL,
1423         BER_BVNULL
1424 };
1425
1426 static struct berval ssbva[] = {
1427         BER_BVC("{}"),
1428         BER_BVNULL
1429 };
1430
1431 static struct berval scbva[] = {
1432         BER_BVNULL,
1433         BER_BVNULL
1434 };
1435
1436 void
1437 syncrepl_updateCookie(
1438         syncinfo_t *si,
1439         Operation *op,
1440         struct berval *pdn,
1441         struct sync_cookie *syncCookie
1442 )
1443 {
1444         Backend *be = op->o_bd;
1445         Modifications *ml;
1446         Modifications *mlnext;
1447         Modifications *mod;
1448         Modifications *modlist = NULL;
1449         Modifications **modtail = &modlist;
1450
1451         const char      *text;
1452         char txtbuf[SLAP_TEXT_BUFLEN];
1453         size_t textlen = sizeof txtbuf;
1454
1455         Entry* e = NULL;
1456         int rc;
1457
1458         char syncrepl_cbuf[sizeof(CN_STR SYNCREPL_STR)];
1459         struct berval slap_syncrepl_dn_bv = BER_BVNULL;
1460         struct berval slap_syncrepl_cn_bv = BER_BVNULL;
1461
1462         slap_callback cb = { NULL };
1463         SlapReply       rs = {REP_RESULT};
1464
1465         slap_sync_cookie_free( &si->si_syncCookie, 0 );
1466         slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
1467
1468         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1469         mod->sml_op = LDAP_MOD_REPLACE;
1470         mod->sml_desc = slap_schema.si_ad_objectClass;
1471         mod->sml_type = mod->sml_desc->ad_cname;
1472         mod->sml_bvalues = ocbva;
1473         *modtail = mod;
1474         modtail = &mod->sml_next;
1475
1476         ber_dupbv( &cnbva[0], (struct berval *) &slap_syncrepl_bvc );
1477         assert( si->si_rid < 1000 );
1478         cnbva[0].bv_len = snprintf( cnbva[0].bv_val,
1479                 slap_syncrepl_bvc.bv_len,
1480                 "syncrepl%ld", si->si_rid );
1481         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1482         mod->sml_op = LDAP_MOD_REPLACE;
1483         mod->sml_desc = slap_schema.si_ad_cn;
1484         mod->sml_type = mod->sml_desc->ad_cname;
1485         mod->sml_bvalues = cnbva;
1486         *modtail = mod;
1487         modtail = &mod->sml_next;
1488
1489         if ( scbva[0].bv_val ) ch_free( scbva[0].bv_val );
1490         ber_dupbv( &scbva[0], &si->si_syncCookie.octet_str[0] );
1491         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1492         mod->sml_op = LDAP_MOD_REPLACE;
1493         mod->sml_desc = slap_schema.si_ad_syncreplCookie;
1494         mod->sml_type = mod->sml_desc->ad_cname;
1495         mod->sml_bvalues = scbva;
1496         *modtail = mod;
1497         modtail = &mod->sml_next;
1498
1499         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1500         mod->sml_op = LDAP_MOD_REPLACE;
1501         mod->sml_desc = slap_schema.si_ad_subtreeSpecification;
1502         mod->sml_type = mod->sml_desc->ad_cname;
1503         mod->sml_bvalues = ssbva;
1504         *modtail = mod;
1505         modtail = &mod->sml_next;
1506
1507         mlnext = mod;
1508
1509         op->o_tag = LDAP_REQ_ADD;
1510         rc = slap_mods_opattrs( op, modlist, modtail,
1511                                                          &text,txtbuf, textlen );
1512
1513         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
1514                 ml->sml_op = LDAP_MOD_REPLACE;
1515         }
1516
1517         if( rc != LDAP_SUCCESS ) {
1518 #ifdef NEW_LOGGING
1519                 LDAP_LOG( OPERATION, ERR,
1520                         "syncrepl_updateCookie: mods opattrs (%s)\n", text, 0, 0 );
1521 #else
1522                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods opattrs (%s)\n",
1523                          text, 0, 0 );
1524 #endif
1525         }
1526
1527         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
1528
1529         slap_syncrepl_cn_bv.bv_val = syncrepl_cbuf;
1530         assert( si->si_rid < 1000 );
1531         slap_syncrepl_cn_bv.bv_len = snprintf( slap_syncrepl_cn_bv.bv_val,
1532                 slap_syncrepl_cn_bvc.bv_len,
1533                 "cn=syncrepl%ld", si->si_rid );
1534
1535         build_new_dn( &slap_syncrepl_dn_bv, pdn, &slap_syncrepl_cn_bv,
1536                 op->o_tmpmemctx );
1537         ber_dupbv( &e->e_name, &slap_syncrepl_dn_bv );
1538         ber_dupbv( &e->e_nname, &slap_syncrepl_dn_bv );
1539
1540         if ( slap_syncrepl_dn_bv.bv_val ) {
1541                 sl_free( slap_syncrepl_dn_bv.bv_val, op->o_tmpmemctx );
1542         }
1543
1544         e->e_attrs = NULL;
1545
1546         rc = slap_mods2entry( modlist, &e, 1, 1, &text, txtbuf, textlen );
1547
1548         if( rc != LDAP_SUCCESS ) {
1549 #ifdef NEW_LOGGING
1550                 LDAP_LOG( OPERATION, ERR,
1551                         "syncrepl_updateCookie: mods2entry (%s)\n", text, 0, 0 );
1552 #else
1553                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods2entry (%s)\n",
1554                          text, 0, 0 );
1555 #endif
1556         }
1557
1558         cb.sc_response = null_callback;
1559         cb.sc_private = si;
1560
1561         op->o_callback = &cb;
1562         op->o_req_dn = e->e_name;
1563         op->o_req_ndn = e->e_nname;
1564
1565         /* update persistent cookie */
1566 update_cookie_retry:
1567         op->o_tag = LDAP_REQ_MODIFY;
1568         op->orm_modlist = modlist;
1569         rc = be->be_modify( op, &rs );
1570
1571         if ( rc != LDAP_SUCCESS ) {
1572                 if ( rc == LDAP_REFERRAL ||
1573                          rc == LDAP_NO_SUCH_OBJECT ) {
1574                         op->o_tag = LDAP_REQ_ADD;
1575                         op->ora_e = e;
1576                         rc = be->be_add( op, &rs );
1577                         if ( rc != LDAP_SUCCESS ) {
1578                                 if ( rc == LDAP_ALREADY_EXISTS ) {
1579                                         goto update_cookie_retry;
1580                                 } else if ( rc == LDAP_REFERRAL ||
1581                                                         rc == LDAP_NO_SUCH_OBJECT ) {
1582 #ifdef NEW_LOGGING
1583                                         LDAP_LOG( OPERATION, ERR,
1584                                                 "cookie will be non-persistent\n",
1585                                                 0, 0, 0 );
1586 #else
1587                                         Debug( LDAP_DEBUG_ANY,
1588                                                 "cookie will be non-persistent\n",
1589                                                 0, 0, 0 );
1590 #endif
1591                                 } else {
1592 #ifdef NEW_LOGGING
1593                                         LDAP_LOG( OPERATION, ERR,
1594                                                 "be_add failed (%d)\n",
1595                                                 rc, 0, 0 );
1596 #else
1597                                         Debug( LDAP_DEBUG_ANY,
1598                                                 "be_add failed (%d)\n",
1599                                                 rc, 0, 0 );
1600 #endif
1601                                 }
1602                         } else {
1603                                 be_entry_release_w( op, e );
1604                                 goto done;
1605                         }
1606                 } else {
1607 #ifdef NEW_LOGGING
1608                         LDAP_LOG( OPERATION, ERR,
1609                                 "be_modify failed (%d)\n", rc, 0, 0 );
1610 #else
1611                         Debug( LDAP_DEBUG_ANY,
1612                                 "be_modify failed (%d)\n", rc, 0, 0 );
1613 #endif
1614                 }
1615         }
1616
1617         if ( e != NULL ) {
1618                 entry_free( e );
1619         }
1620
1621 done :
1622
1623         if ( cnbva[0].bv_val ) {
1624                 ch_free( cnbva[0].bv_val );
1625                 cnbva[0].bv_val = NULL;
1626         }
1627         if ( scbva[0].bv_val ) {
1628                 ch_free( scbva[0].bv_val );
1629                 scbva[0].bv_val = NULL;
1630         }
1631
1632         if ( mlnext->sml_next ) {
1633                 slap_mods_free( mlnext->sml_next );
1634                 mlnext->sml_next = NULL;
1635         }
1636
1637         for (ml = modlist ; ml != NULL; ml = mlnext ) {
1638                 mlnext = ml->sml_next;
1639                 free( ml );
1640         }
1641
1642         return;
1643 }
1644
1645 static int
1646 dn_callback(
1647         Operation*      op,
1648         SlapReply*      rs
1649 )
1650 {
1651         syncinfo_t *si = op->o_callback->sc_private;
1652
1653         if ( rs->sr_type == REP_SEARCH ) {
1654                 if ( si->si_syncUUID_ndn.bv_val != NULL ) {
1655 #ifdef NEW_LOGGING
1656                         LDAP_LOG( OPERATION, ERR,
1657                                 "dn_callback : multiple entries match dn\n", 0, 0, 0 );
1658 #else
1659                         Debug( LDAP_DEBUG_ANY,
1660                                 "dn_callback : multiple entries match dn\n", 0, 0, 0 );
1661 #endif
1662                 } else {
1663                         ber_dupbv_x( &si->si_syncUUID_ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
1664                 }
1665         }
1666
1667         return LDAP_SUCCESS;
1668 }
1669
1670 static int
1671 nonpresent_callback(
1672         Operation*      op,
1673         SlapReply*      rs
1674 )
1675 {
1676         syncinfo_t *si = op->o_callback->sc_private;
1677         Attribute *a;
1678         int count = 0;
1679         struct berval* present_uuid = NULL;
1680         struct nonpresent_entry *np_entry;
1681
1682         if ( rs->sr_type == REP_RESULT ) {
1683                 count = avl_free( si->si_presentlist, avl_ber_bvfree );
1684                 si->si_presentlist = NULL;
1685
1686         } else if ( rs->sr_type == REP_SEARCH ) {
1687                 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
1688
1689                 if ( a == NULL ) return 0;
1690
1691                 present_uuid = avl_find( si->si_presentlist, &a->a_vals[0],
1692                         syncuuid_cmp );
1693
1694                 if ( present_uuid == NULL ) {
1695                         np_entry = (struct nonpresent_entry *)
1696                                 ch_calloc( 1, sizeof( struct nonpresent_entry ));
1697                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
1698                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
1699                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
1700
1701                 } else {
1702                         avl_delete( &si->si_presentlist,
1703                                         &a->a_vals[0], syncuuid_cmp );
1704                         ch_free( present_uuid->bv_val );
1705                         ch_free( present_uuid );
1706                 }
1707         }
1708         return LDAP_SUCCESS;
1709 }
1710
1711 static int
1712 null_callback(
1713         Operation*      op,
1714         SlapReply*      rs )
1715 {
1716         if ( rs->sr_err != LDAP_SUCCESS &&
1717                 rs->sr_err != LDAP_REFERRAL &&
1718                 rs->sr_err != LDAP_ALREADY_EXISTS &&
1719                 rs->sr_err != LDAP_NO_SUCH_OBJECT )
1720         {
1721 #ifdef NEW_LOGGING
1722                 LDAP_LOG( OPERATION, ERR,
1723                         "null_callback : error code 0x%x\n",
1724                         rs->sr_err, 0, 0 );
1725 #else
1726                 Debug( LDAP_DEBUG_ANY,
1727                         "null_callback : error code 0x%x\n",
1728                         rs->sr_err, 0, 0 );
1729 #endif
1730         }
1731         return LDAP_SUCCESS;
1732 }
1733
1734 Entry *
1735 slap_create_syncrepl_entry(
1736         Backend *be,
1737         struct berval *context_csn,
1738         struct berval *rdn,
1739         struct berval *cn )
1740 {
1741         Entry* e;
1742
1743         struct berval bv;
1744
1745         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
1746
1747         attr_merge( e, slap_schema.si_ad_objectClass, ocbva, NULL );
1748
1749         attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
1750                 &ocbva[1], NULL );
1751
1752         attr_merge_one( e, slap_schema.si_ad_cn, cn, NULL );
1753
1754         if ( context_csn ) {
1755                 attr_merge_one( e, slap_schema.si_ad_syncreplCookie,
1756                         context_csn, NULL );
1757         }
1758
1759         bv.bv_val = "{}";
1760         bv.bv_len = sizeof("{}")-1;
1761         attr_merge_one( e, slap_schema.si_ad_subtreeSpecification, &bv, NULL );
1762
1763         build_new_dn( &e->e_name, &be->be_nsuffix[0], rdn, NULL );
1764         ber_dupbv( &e->e_nname, &e->e_name );
1765
1766         return e;
1767 }
1768
1769 struct berval *
1770 slap_uuidstr_from_normalized(
1771         struct berval* uuidstr,
1772         struct berval* normalized,
1773         void *ctx )
1774 {
1775         struct berval *new;
1776         unsigned char nibble;
1777         int i, d = 0;
1778
1779         if ( normalized == NULL )
1780                 return NULL;
1781
1782         if ( normalized->bv_len != 16 ) {
1783                 return NULL;
1784         }
1785
1786         if ( uuidstr ) {
1787                 new = uuidstr;
1788         } else {
1789                 new = (struct berval *)sl_malloc( sizeof(struct berval), ctx );
1790         }
1791
1792         new->bv_len = 36;
1793
1794         if (( new->bv_val = sl_malloc( new->bv_len + 1, ctx )) == NULL) {
1795                 if ( !uuidstr )
1796                         sl_free( new, ctx );
1797                 return NULL;
1798         }
1799
1800         for ( i = 0; i < 16; i++ ) {
1801                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
1802                         new->bv_val[(i<<1)+d] = '-';
1803                         d += 1;
1804                 }
1805
1806                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
1807                 if ( nibble < 10 ) {
1808                         new->bv_val[(i<<1)+d] = nibble + '0';
1809                 } else {
1810                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
1811                 }
1812
1813                 nibble = (normalized->bv_val[i]) & 0xF;
1814                 if ( nibble < 10 ) {
1815                         new->bv_val[(i<<1)+d+1] = nibble + '0';
1816                 } else {
1817                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
1818                 }
1819         }
1820
1821         new->bv_val[new->bv_len] = '\0';
1822
1823         return new;
1824 }
1825
1826 static int
1827 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
1828 {
1829         const struct berval *uuid1 = v_uuid1;
1830         const struct berval *uuid2 = v_uuid2;
1831         int rc = uuid1->bv_len - uuid2->bv_len;
1832         if ( rc ) return rc;
1833         return ( strcmp( uuid1->bv_val, uuid2->bv_val ) );
1834 }
1835
1836 static void
1837 avl_ber_bvfree( void *bv )
1838 {
1839         if( bv == NULL ) {
1840                 return;
1841         }
1842         if ( ((struct berval *)bv)->bv_val != NULL ) {
1843                 ch_free ( ((struct berval *)bv)->bv_val );
1844         }
1845         ch_free ( (char *) bv );
1846 }
1847