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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Replication Engine which uses the LDAP Sync protocol
   4  */
   5 /* Copyright (c) 2003 by International Business Machines, Inc.
   6  *
   7  * International Business Machines, Inc. (hereinafter called IBM) grants
   8  * permission under its copyrights to use, copy, modify, and distribute this
   9  * Software with or without fee, provided that the above copyright notice and
  10  * all paragraphs of this notice appear in all copies, and that the name of IBM
  11  * not be used in connection with the marketing of any product incorporating
  12  * the Software or modifications thereof, without specific, written prior
  13  * permission.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
  16  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  17  * PARTICULAR PURPOSE.  IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
  18  * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
  19  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
  20  * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
  21  */
  22
  23 #include "portable.h"
  24
  25 #include <stdio.h>
  26
  27 #include <ac/string.h>
  28 #include <ac/socket.h>
  29 #include <db.h>
  30
  31 #include "ldap_pvt.h"
  32 #include "lutil.h"
  33 #include "slap.h"
  34 #include "lutil_ldap.h"
  35
  36 #include "ldap_rq.h"
  37
  38 static const struct berval slap_syncrepl_bvc = BER_BVC("syncreplxxx");
  39 static const struct berval slap_syncrepl_cn_bvc = BER_BVC("cn=syncreplxxx");
  40
  41 static void
  42 syncrepl_del_nonpresent( LDAP *, Operation * );
  43
  44 /* callback functions */
  45 static int cookie_callback( struct slap_op *, struct slap_rep * );
  46 static int dn_callback( struct slap_op *, struct slap_rep * );
  47 static int nonpresent_callback( struct slap_op *, struct slap_rep * );
  48 static int null_callback( struct slap_op *, struct slap_rep * );
  49 static int contextcsn_callback( Operation*, SlapReply* );
  50
  51 static AttributeDescription **sync_descs;
  52
  53 struct runqueue_s syncrepl_rq;
  54
  55 void
  56 init_syncrepl()
  57 {
  58         sync_descs = ch_malloc( 4 * sizeof( AttributeDescription * ));
  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 int
  66 ldap_sync_search(
  67         syncinfo_t *si,
  68         LDAP *ld,
  69         LDAPControl **sctrls,
  70         LDAPControl **cctrls,
  71         int *msgidp )
  72 {
  73         BerElement      *ber;
  74         int timelimit;
  75         ber_int_t id;
  76
  77         int rc;
  78         BerElement      *sync_ber = NULL;
  79         struct berval *sync_bvalp = NULL;
  80         LDAPControl c[2];
  81         LDAPControl **ctrls;
  82         int err;
  83         struct timeval timeout;
  84
  85     /* setup LDAP SYNC control */
  86     sync_ber = ber_alloc_t( LBER_USE_DER );
  87     ber_set_option( sync_ber, LBER_OPT_BER_MEMCTX, NULL );
  88
  89     if ( si->syncCookie ) {
  90         ber_printf( sync_ber, "{eO}", abs(si->type), si->syncCookie );
  91     } else {
  92         ber_printf( sync_ber, "{e}", abs(si->type) );
  93     }
  94
  95     if ( ber_flatten( sync_ber, &sync_bvalp ) == LBER_ERROR ) {
  96         ber_free( sync_ber, 1 );
  97         return LBER_ERROR;
  98     }
  99     ber_free( sync_ber, 1 );
 100
 101     ctrls = (LDAPControl**) sl_calloc( 3, sizeof(LDAPControl*), NULL );
 102
 103     c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 104     c[0].ldctl_value = (*sync_bvalp);
 105     c[0].ldctl_iscritical = si->type < 0;
 106     ctrls[0] = &c[0];
 107
 108     if ( si->authzId ) {
 109         c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 110         c[1].ldctl_value.bv_val = si->authzId;
 111         c[1].ldctl_value.bv_len = strlen( si->authzId );
 112         c[1].ldctl_iscritical = 1;
 113         ctrls[1] = &c[1];
 114     } else {
 115         ctrls[1] = NULL;
 116     }
 117
 118     ctrls[2] = NULL;
 119
 120     err = ldap_set_option( ld, LDAP_OPT_SERVER_CONTROLS, ctrls );
 121
 122     ber_bvfree( sync_bvalp );
 123     ch_free( ctrls );
 124
 125     if ( err != LDAP_OPT_SUCCESS )
 126         fprintf( stderr, "Could not set controls : %d\n", err );
 127
 128         timeout.tv_sec = si->tlimit > 0 ? si->tlimit : 1;
 129
 130         rc = ldap_search_ext( ld, si->base, si->scope, si->filterstr,
 131                                                   si->attrs, si->attrsonly, sctrls, cctrls,
 132                                                   si->tlimit < 0 ? NULL : &timeout,
 133                                                   si->slimit, msgidp );
 134
 135         return rc;
 136 }
 137
 138 void *
 139 do_syncrepl(
 140         void    *ctx,
 141         void    *arg )
 142 {
 143         struct re_s* rtask = arg;
 144         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
 145         Backend *be = si->be;
 146
 147         SlapReply       rs = {REP_RESULT};
 148
 149         LDAPControl     c[2];
 150         LDAPControl     **sctrls = NULL;
 151         LDAPControl     **rctrls = NULL;
 152         LDAPControl     *rctrlp = NULL;
 153         BerElement      *sync_ber = NULL;
 154         struct berval   *sync_bvalp = NULL;
 155
 156         BerElement      *ctrl_ber = NULL;
 157         BerElement      *res_ber = NULL;
 158
 159         LDAP    *ld = NULL;
 160         LDAPMessage     *res = NULL;
 161         LDAPMessage     *msg = NULL;
 162
 163         ber_int_t       msgid;
 164
 165         int             nresponses, nreferences, nextended, npartial;
 166         int             nresponses_psearch;
 167
 168         int             cancel_msgid = -1;
 169         char            *retoid = NULL;
 170         struct berval   *retdata = NULL;
 171
 172         int             sync_info_arrived = 0;
 173         Entry           *entry = NULL;
 174
 175         int             syncstate;
 176         struct berval   syncUUID = { 0, NULL };
 177         struct berval   syncCookie = { 0, NULL };
 178         struct berval   syncCookie_req = { 0, NULL };
 179
 180         int     rc;
 181         int     err;
 182         ber_len_t       len;
 183         int     syncinfo_arrived = 0;
 184
 185         char **tmp = NULL;
 186         AttributeDescription** descs = NULL;
 187
 188         Connection conn;
 189         Operation op = {0};
 190         slap_callback   cb;
 191
 192         void *memctx = NULL;
 193         ber_len_t memsiz;
 194
 195         int i, j, k, n;
 196         int rc_efree;
 197
 198         struct berval base_bv = { 0, NULL };
 199         struct berval pbase = { 0, NULL };
 200         struct berval nbase = { 0, NULL };
 201         struct berval psubrdn = { 0, NULL };
 202         struct berval nsubrdn = { 0, NULL };
 203         struct berval psub = { 0, NULL };
 204         struct berval nsub = { 0, NULL };
 205         Modifications   *modlist = NULL;
 206         Modifications   *ml, *mlnext;
 207         char *def_filter_str = NULL;
 208
 209         struct berval slap_syncrepl_bv = BER_BVNULL;
 210
 211         const char              *text;
 212         int                             match;
 213
 214         struct timeval *tout_p = NULL;
 215         struct timeval tout = { 10, 0 };
 216
 217 #ifdef NEW_LOGGING
 218         LDAP_LOG ( OPERATION, DETAIL1, "do_syncrepl\n", 0, 0, 0 );
 219 #else
 220         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl\n", 0, 0, 0 );
 221 #endif
 222
 223         if ( si == NULL )
 224                 return NULL;
 225
 226         if ( abs(si->type) != LDAP_SYNC_REFRESH_ONLY &&
 227              abs(si->type) != LDAP_SYNC_REFRESH_AND_PERSIST ) {
 228                 return NULL;
 229         }
 230
 231         si->sync_mode = LDAP_SYNC_STATE_MODE;
 232
 233         /* Init connection to master */
 234
 235         rc = ldap_initialize( &ld, si->provideruri );
 236         if ( rc != LDAP_SUCCESS ) {
 237 #ifdef NEW_LOGGING
 238                 LDAP_LOG( OPERATION, ERR, "do_syncrepl: "
 239                         "ldap_initialize failed (%s)\n",
 240                         si->provideruri, 0, 0 );
 241 #else
 242                 Debug( LDAP_DEBUG_ANY, "do_syncrepl: "
 243                         "ldap_initialize failed (%s)\n",
 244                         si->provideruri, 0, 0 );
 245 #endif
 246         }
 247
 248         op.o_protocol = LDAP_VERSION3;
 249         ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &op.o_protocol );
 250
 251         /* Bind to master */
 252
 253         if ( si->tls ) {
 254                 rc = ldap_start_tls_s( ld, NULL, NULL );
 255                 if( rc != LDAP_SUCCESS ) {
 256 #ifdef NEW_LOGGING
 257                         LDAP_LOG ( OPERATION, ERR, "do_syncrepl: "
 258                                 "%s: ldap_start_tls failed (%d)\n",
 259                                 si->tls == TLS_CRITICAL ? "Error" : "Warning",
 260                                 rc, 0 );
 261 #else
 262                         Debug( LDAP_DEBUG_ANY,
 263                                 "%s: ldap_start_tls failed (%d)\n",
 264                                 si->tls == TLS_CRITICAL ? "Error" : "Warning",
 265                                 rc, 0 );
 266 #endif
 267                         if( si->tls == TLS_CRITICAL )
 268                                 return NULL;
 269                 }
 270         }
 271
 272         if ( si->bindmethod == LDAP_AUTH_SASL ) {
 273 #ifdef HAVE_CYRUS_SASL
 274                 void *defaults;
 275
 276                 if ( si->secprops != NULL ) {
 277                         int err = ldap_set_option( ld,
 278                                         LDAP_OPT_X_SASL_SECPROPS, si->secprops);
 279
 280                         if( err != LDAP_OPT_SUCCESS ) {
 281 #ifdef NEW_LOGGING
 282                                 LDAP_LOG ( OPERATION, ERR, "do_bind: Error: "
 283                                         "ldap_set_option(%s,SECPROPS,\"%s\") failed!\n",
 284                                         si->provideruri, si->secprops, 0 );
 285 #else
 286                                 Debug( LDAP_DEBUG_ANY, "Error: ldap_set_option "
 287                                         "(%s,SECPROPS,\"%s\") failed!\n",
 288                                         si->provideruri, si->secprops, NULL );
 289 #endif
 290                                 return NULL;
 291                         }
 292                 }
 293
 294                 defaults = lutil_sasl_defaults( ld,
 295                                 si->saslmech,
 296                                 si->realm,
 297                                 si->authcId,
 298                                 si->passwd,
 299                                 si->authzId );
 300
 301                 rc = ldap_sasl_interactive_bind_s( ld,
 302                                 si->binddn,
 303                                 si->saslmech,
 304                                 NULL, NULL,
 305                                 LDAP_SASL_QUIET,
 306                                 lutil_sasl_interact,
 307                                 defaults );
 308
 309                 /* FIXME : different error behaviors according to
 310                         1) return code
 311                         2) on err policy : exit, retry, backoff ...
 312                 */
 313                 if ( rc != LDAP_SUCCESS ) {
 314 #ifdef NEW_LOGGING
 315                         LDAP_LOG ( OPERATION, ERR, "do_syncrepl: "
 316                                 "ldap_sasl_interactive_bind_s failed (%d)\n",
 317                                 rc, 0, 0 );
 318 #else
 319                         Debug( LDAP_DEBUG_ANY, "do_syncrepl: "
 320                                 "ldap_sasl_interactive_bind_s failed (%d)\n",
 321                                 rc, 0, 0 );
 322 #endif
 323                         return NULL;
 324                 }
 325 #else /* HAVE_CYRUS_SASL */
 326                 fprintf( stderr, "not compiled with SASL support\n" );
 327                 return NULL;
 328 #endif
 329         } else {
 330                 rc = ldap_bind_s( ld, si->binddn, si->passwd, si->bindmethod );
 331                 if ( rc != LDAP_SUCCESS ) {
 332 #ifdef NEW_LOGGING
 333                         LDAP_LOG ( OPERATION, ERR, "do_syncrepl: "
 334                                 "ldap_bind_s failed (%d)\n", rc, 0, 0 );
 335 #else
 336                         Debug( LDAP_DEBUG_ANY, "do_syncrepl: "
 337                                 "ldap_bind_s failed (%d)\n", rc, 0, 0 );
 338 #endif
 339                         return NULL;
 340                 }
 341         }
 342
 343         /* set thread context in syncinfo */
 344         si->ctx = ctx;
 345
 346         /* set memory context */
 347 #define SLAB_SIZE 1048576
 348         memsiz = SLAB_SIZE;
 349         memctx = sl_mem_create( memsiz, ctx );
 350         op.o_tmpmemctx = memctx;
 351         op.o_tmpmfuncs = &sl_mfuncs;
 352
 353         op.o_si = si;
 354         op.o_tag = LDAP_REQ_SEARCH;
 355         op.o_dn = si->updatedn;
 356         op.o_ndn = si->updatedn;
 357         op.o_callback = &cb;
 358         op.o_time = slap_get_time();
 359         op.o_managedsait = 1;
 360         op.o_threadctx = si->ctx;
 361         op.o_bd = be;
 362         op.o_conn = &conn;
 363         op.o_connid = op.o_conn->c_connid;
 364         op.ors_scope = LDAP_SCOPE_BASE;
 365         op.ors_deref = LDAP_DEREF_NEVER;
 366         op.ors_slimit = 0;
 367         op.ors_tlimit = 0;
 368         op.ors_attrsonly = 0;
 369         op.ors_attrs = NULL;
 370         op.ors_filter = str2filter_x( &op, def_filter_str = "(objectClass=*)" );
 371         ber_str2bv( def_filter_str, 0, 0, &op.ors_filterstr );
 372
 373         si->conn = &conn;
 374         conn.c_send_ldap_result = slap_send_ldap_result;
 375         conn.c_send_search_entry = slap_send_search_entry;
 376         conn.c_send_search_reference = slap_send_search_reference;
 377
 378         /* get syncrepl cookie of shadow replica from subentry */
 379         ber_str2bv( si->base, 0, 0, &base_bv );
 380         dnPrettyNormal( 0, &base_bv, &pbase, &nbase, op.o_tmpmemctx );
 381
 382         ber_dupbv( &slap_syncrepl_bv, (struct berval *) &slap_syncrepl_bvc );
 383         slap_syncrepl_bv.bv_len = snprintf( slap_syncrepl_bv.bv_val,
 384                                                                         slap_syncrepl_bvc.bv_len,
 385                                                                         "syncrepl%d", si->id );
 386         build_new_dn( &op.o_req_dn, &pbase, &slap_syncrepl_bv, op.o_tmpmemctx );
 387         build_new_dn( &op.o_req_ndn, &nbase, &slap_syncrepl_bv, op.o_tmpmemctx );
 388
 389         /* set callback function */
 390         cb.sc_response = cookie_callback;
 391         cb.sc_private = si;
 392
 393         /* search subentry to retrieve cookie */
 394         si->syncCookie = NULL;
 395         be->be_search( &op, &rs );
 396
 397         if ( op.o_req_dn.bv_val )
 398                 ch_free( op.o_req_dn.bv_val );
 399         if ( op.o_req_ndn.bv_val )
 400                 ch_free( op.o_req_ndn.bv_val );
 401         if ( op.ors_filter )
 402                 filter_free( op.ors_filter );
 403         if ( op.ors_filterstr.bv_val )
 404                 ch_free( op.ors_filterstr.bv_val );
 405         if ( slap_syncrepl_bv.bv_val )
 406                 ch_free( slap_syncrepl_bv.bv_val );
 407         if ( pbase.bv_val )
 408                 ch_free( pbase.bv_val );
 409         if ( nbase.bv_val )
 410                 ch_free( nbase.bv_val );
 411
 412         ber_dupbv( &syncCookie_req, si->syncCookie );
 413
 414         psub = be->be_nsuffix[0];
 415
 416         for ( n = 0; si->attrs[ n ] != NULL; n++ ) ;
 417
 418         if ( n != 0 ) {
 419                 /* Delete Attributes */
 420                 descs = sync_descs;
 421                 for ( i = 0; descs[i] != NULL; i++ ) {
 422                         for ( j = 0; si->attrs[j] != NULL; j++ ) {
 423                                 if ( !strcmp( si->attrs[j], descs[i]->ad_cname.bv_val )) {
 424                                         ch_free( si->attrs[j] );
 425                                         for ( k = j; si->attrs[k] != NULL; k++ ) {
 426                                                 si->attrs[k] = si->attrs[k+1];
 427                                         }
 428                                 }
 429                         }
 430                 }
 431                 for ( n = 0; si->attrs[ n ] != NULL; n++ );
 432                 tmp = ( char ** ) ch_realloc( si->attrs, ( n + 4 ) * sizeof( char * ));
 433                 if ( tmp == NULL ) {
 434 #ifdef NEW_LOGGING
 435                         LDAP_LOG( OPERATION, ERR, "out of memory\n", 0,0,0 );
 436 #else
 437                         Debug( LDAP_DEBUG_ANY, "out of memory\n", 0,0,0 );
 438 #endif
 439                 }
 440         } else {
 441                 tmp = ( char ** ) ch_realloc( si->attrs, 5 * sizeof( char * ));
 442                 if ( tmp == NULL ) {
 443 #ifdef NEW_LOGGING
 444                         LDAP_LOG( OPERATION, ERR, "out of memory\n", 0,0,0 );
 445 #else
 446                         Debug( LDAP_DEBUG_ANY, "out of memory\n", 0,0,0 );
 447 #endif
 448                 }
 449                 tmp[ n++ ] = ch_strdup( "*" );
 450         }
 451
 452         descs = sync_descs;
 453         si->attrs = tmp;
 454
 455         /* Add Attributes */
 456
 457         for ( i = 0; descs[ i ] != NULL; i++ ) {
 458                 si->attrs[ n++ ] = ch_strdup ( descs[i]->ad_cname.bv_val );
 459                 si->attrs[ n ] = NULL;
 460         }
 461
 462         rc = ldap_sync_search( si, ld, NULL, NULL, &msgid );
 463         if( rc != LDAP_SUCCESS ) {
 464                 fprintf( stderr, "syncrepl: ldap_search_ext: %s (%d)\n",
 465                                                         ldap_err2string( rc ), rc );
 466                 return NULL;
 467         }
 468
 469         if ( abs(si->type) == LDAP_SYNC_REFRESH_AND_PERSIST ){
 470                 tout_p = &tout;
 471         } else {
 472                 tout_p = NULL;
 473         }
 474
 475         while (( rc = ldap_result( ld, LDAP_RES_ANY, LDAP_MSG_ONE, tout_p, &res )) >= 0 ) {
 476
 477                 if ( rc == 0 ) {
 478                         if ( slapd_abrupt_shutdown ) {
 479                                 break;
 480                         } else {
 481                                 continue;
 482                         }
 483                 }
 484
 485                 for ( msg = ldap_first_message( ld, res );
 486                       msg != NULL;
 487                       msg = ldap_next_message( ld, msg ) )
 488                 {
 489                         syncCookie.bv_len = 0; syncCookie.bv_val = NULL;
 490                         switch( ldap_msgtype( msg ) ) {
 491                         case LDAP_RES_SEARCH_ENTRY:
 492                                 entry = syncrepl_message_to_entry( si, ld, &op, msg,
 493                                         &modlist, &syncstate, &syncUUID, &syncCookie );
 494                                 rc_efree = syncrepl_entry( si, ld, &op, entry, modlist,
 495                                                 syncstate, &syncUUID, &syncCookie, !syncinfo_arrived );
 496                                 if ( syncCookie.bv_len ) {
 497                                         syncrepl_updateCookie( si, ld, &op, &psub, &syncCookie );
 498                                 }
 499                                 if ( modlist ) {
 500                                         slap_mods_free( modlist );
 501                                 }
 502                                 if ( rc_efree ) {
 503                                         entry_free( entry );
 504                                 }
 505                                 break;
 506
 507                         case LDAP_RES_SEARCH_REFERENCE:
 508 #ifdef NEW_LOGGING
 509                                 LDAP_LOG( OPERATION, ERR,
 510                                         "do_syncrepl : reference received\n", 0, 0, 0 );
 511 #else
 512                                 Debug( LDAP_DEBUG_ANY,
 513                                         "do_syncrepl : reference received\n", 0, 0, 0 );
 514 #endif
 515                                 break;
 516
 517                         case LDAP_RES_SEARCH_RESULT:
 518                                 ldap_parse_result( ld, msg, &err, NULL, NULL, NULL, &rctrls, 0 );
 519                                 if ( rctrls ) {
 520                                         rctrlp = *rctrls;
 521                                         ctrl_ber = ber_alloc_t( LBER_USE_DER );
 522                                         ber_set_option( ctrl_ber, LBER_OPT_BER_MEMCTX, &op.o_tmpmemctx );
 523                                         ber_write( ctrl_ber, rctrlp->ldctl_value.bv_val, rctrlp->ldctl_value.bv_len, 0 );
 524                                         ber_reset( ctrl_ber, 1 );
 525
 526                                         ber_scanf( ctrl_ber, "{" /*"}"*/);
 527                                         if ( ber_peek_tag( ctrl_ber, &len )
 528                                                 == LDAP_SYNC_TAG_COOKIE ) {
 529                                                 ber_scanf( ctrl_ber, "o", &syncCookie );
 530                                         }
 531                                 }
 532                                 value_match( &match, slap_schema.si_ad_entryCSN,
 533                                                         slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 534                                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 535                                                         &syncCookie_req, &syncCookie, &text );
 536                                 if (si->type == LDAP_SYNC_REFRESH_AND_PERSIST) {
 537                                         /* FIXME : different error behaviors according to
 538                                                 1) err code : LDAP_BUSY ...
 539                                                 2) on err policy : stop service, stop sync, retry
 540                                         */
 541                                         if ( syncCookie.bv_len && match < 0) {
 542                                                 syncrepl_updateCookie( si, ld, &op, &psub, &syncCookie );
 543                                         }
 544                                         if ( ctrl_ber )
 545                                                 ber_free( ctrl_ber, 1 );
 546                                         goto done;
 547                                 } else {
 548                                         /* FIXME : different error behaviors according to
 549                                                 1) err code : LDAP_BUSY ...
 550                                                 2) on err policy : stop service, stop sync, retry
 551                                         */
 552                                         if ( syncCookie.bv_len && match < 0 ) {
 553                                                 syncrepl_updateCookie( si, ld, &op, &psub, &syncCookie);
 554                                         }
 555                                         if ( si->sync_mode == LDAP_SYNC_STATE_MODE && match < 0 ) {
 556                                                         syncrepl_del_nonpresent( ld, &op );
 557                                         }
 558                                         if ( ctrl_ber )
 559                                                 ber_free( ctrl_ber, 1 );
 560                                         goto done;
 561                                 }
 562                                 break;
 563
 564                         case LDAP_RES_INTERMEDIATE:
 565                                 rc = ldap_parse_intermediate( ld, msg,
 566                                         &retoid, &retdata, NULL, 0 );
 567                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 568                                         sync_info_arrived = 1;
 569                                         res_ber = ber_init( retdata );
 570                                         ber_scanf( res_ber, "{e" /*"}"*/, &syncstate );
 571
 572                                         if ( ber_peek_tag( res_ber, &len )
 573                                                                 == LDAP_SYNC_TAG_COOKIE ) {
 574                                                 ber_scanf( res_ber, /*"{"*/ "o}", &syncCookie );
 575                                         } else {
 576                                                 if ( syncstate == LDAP_SYNC_NEW_COOKIE ) {
 577 #ifdef NEW_LOGGING
 578                                                         LDAP_LOG( OPERATION, ERR,
 579                                                                 "do_syncrepl : cookie required\n", 0, 0, 0 );
 580 #else
 581                                                         Debug( LDAP_DEBUG_ANY,
 582                                                                 "do_syncrepl : cookie required\n", 0, 0, 0 );
 583 #endif
 584                                                 }
 585                                         }
 586
 587                                         value_match( &match, slap_schema.si_ad_entryCSN,
 588                                                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 589                                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 590                                                                 &syncCookie_req, &syncCookie, &text );
 591
 592                                         if ( syncCookie.bv_len && match < 0 ) {
 593                                                 syncrepl_updateCookie( si, ld, &op, &psub, &syncCookie);
 594                                         }
 595
 596                                         if ( syncstate == LDAP_SYNC_STATE_MODE_DONE ) {
 597                                                 if ( match < 0 ) {
 598                                                         syncrepl_del_nonpresent( ld, &op );
 599                                                 }
 600                                                 si->sync_mode = LDAP_SYNC_LOG_MODE;
 601                                         } else if ( syncstate == LDAP_SYNC_LOG_MODE_DONE ) {
 602                                                 si->sync_mode = LDAP_SYNC_PERSIST_MODE;
 603                                         } else if ( syncstate == LDAP_SYNC_REFRESH_DONE ) {
 604                                                 si->sync_mode = LDAP_SYNC_PERSIST_MODE;
 605                                         } else if ( syncstate != LDAP_SYNC_NEW_COOKIE ||
 606                                                                 syncstate != LDAP_SYNC_LOG_MODE_DONE ) {
 607 #ifdef NEW_LOGGING
 608                                                 LDAP_LOG( OPERATION, ERR,
 609                                                         "do_syncrepl : unknown sync info\n", 0, 0, 0 );
 610 #else
 611                                                 Debug( LDAP_DEBUG_ANY,
 612                                                         "do_syncrepl : unknown sync info\n", 0, 0, 0 );
 613 #endif
 614                                         }
 615
 616                                         ldap_memfree( retoid );
 617                                         ber_bvfree( retdata );
 618                                         ber_free( res_ber, 1 );
 619                                         break;
 620                                 } else {
 621 #ifdef NEW_LOGGING
 622                                         LDAP_LOG( OPERATION, ERR,"do_syncrepl :"
 623                                                 " unknown intermediate "
 624                                                 "response\n", 0, 0, 0 );
 625 #else
 626                                         Debug( LDAP_DEBUG_ANY, "do_syncrepl : "
 627                                                 "unknown intermediate response (%d)\n",
 628                                                 rc, 0, 0 );
 629 #endif
 630                                         ldap_memfree( retoid );
 631                                         ber_bvfree( retdata );
 632                                         break;
 633                                 }
 634                                 break;
 635                         default:
 636 #ifdef NEW_LOGGING
 637                                 LDAP_LOG( OPERATION, ERR, "do_syncrepl : "
 638                                         "unknown message\n", 0, 0, 0 );
 639 #else
 640                                 Debug( LDAP_DEBUG_ANY, "do_syncrepl : "
 641                                         "unknown message\n", 0, 0, 0 );
 642 #endif
 643                                 break;
 644
 645                         }
 646                         if ( syncCookie.bv_val )
 647                                 ch_free( syncCookie.bv_val );
 648                         if ( syncUUID.bv_val )
 649                                 ch_free( syncUUID.bv_val );
 650                 }
 651                 ldap_msgfree( res );
 652         }
 653
 654         if ( rc == -1 ) {
 655                 int errno;
 656                 const char *errstr;
 657
 658                 ldap_get_option( ld, LDAP_OPT_ERROR_NUMBER, &errno );
 659                 errstr = ldap_err2string( errno );
 660
 661 #ifdef NEW_LOGGING
 662                 LDAP_LOG( OPERATION, ERR,
 663                         "do_syncrepl : %s\n", errstr, 0, 0 );
 664 #else
 665                 Debug( LDAP_DEBUG_ANY,
 666                         "do_syncrepl : %s\n", errstr, 0, 0 );
 667 #endif
 668         }
 669
 670 done:
 671         if ( syncCookie.bv_val )
 672                 ch_free( syncCookie.bv_val );
 673         if ( syncCookie_req.bv_val )
 674                 ch_free( syncCookie_req.bv_val );
 675         if ( syncUUID.bv_val )
 676                 ch_free( syncUUID.bv_val );
 677
 678         if ( res )
 679                 ldap_msgfree( res );
 680
 681         ldap_unbind( ld );
 682
 683         ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
 684         ldap_pvt_runqueue_stoptask( &syncrepl_rq, rtask );
 685         if ( si->type == LDAP_SYNC_REFRESH_ONLY ) {
 686                 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask );
 687         } else {
 688                 ldap_pvt_runqueue_remove( &syncrepl_rq, rtask );
 689         }
 690         ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
 691
 692         return NULL;
 693 }
 694
 695 Entry*
 696 syncrepl_message_to_entry(
 697         syncinfo_t      *si,
 698         LDAP            *ld,
 699         Operation       *op,
 700         LDAPMessage     *msg,
 701         Modifications   **modlist,
 702         int             *syncstate,
 703         struct berval   *syncUUID,
 704         struct berval   *syncCookie
 705 )
 706 {
 707         Entry           *e;
 708         BerElement      *ber = NULL;
 709         BerElement      *tmpber;
 710         struct berval   bv = {0, NULL};
 711         Modifications   tmp;
 712         Modifications   *mod;
 713         Modifications   **modtail = modlist;
 714         Backend         *be = op->o_bd;
 715
 716         const char      *text;
 717         char txtbuf[SLAP_TEXT_BUFLEN];
 718         size_t textlen = sizeof txtbuf;
 719
 720         struct berval   **bvals = NULL;
 721         char            *dn;
 722         struct berval   bdn = {0, NULL};
 723         Attribute       *attr;
 724         struct berval   empty_bv = { 0, NULL };
 725         int             rc;
 726         char            *a;
 727
 728         ber_len_t       len;
 729         LDAPControl*    rctrlp;
 730         LDAPControl**   rctrls = NULL;
 731         BerElement*     ctrl_ber;
 732
 733         ber_tag_t       tag;
 734
 735         Modifications *ml = NULL;
 736         AttributeDescription** descs;
 737         int i;
 738
 739         *modlist = NULL;
 740
 741         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
 742 #ifdef NEW_LOGGING
 743                 LDAP_LOG( OPERATION, ERR,
 744                         "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
 745 #else
 746                 Debug( LDAP_DEBUG_ANY,
 747                         "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
 748 #endif
 749                 return NULL;
 750         }
 751
 752         op->o_tag = LDAP_REQ_ADD;
 753
 754         rc = ldap_get_dn_ber( ld, msg, &ber, &bdn );
 755
 756         if ( rc != LDAP_SUCCESS ) {
 757 #ifdef NEW_LOGGING
 758                 LDAP_LOG( OPERATION, ERR,
 759                         "syncrepl_message_to_entry : dn get failed (%d)", rc, 0, 0 );
 760 #else
 761                 Debug( LDAP_DEBUG_ANY,
 762                         "syncrepl_message_to_entry : dn get failed (%d)", rc, 0, 0 );
 763 #endif
 764                 return NULL;
 765         }
 766
 767         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
 768         dnPrettyNormal( NULL, &bdn, &e->e_name, &e->e_nname, NULL );
 769
 770         e->e_attrs = NULL;
 771
 772         while ( ber_remaining( ber ) ) {
 773                 tag = ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values );
 774
 775                 if ( tag == LBER_ERROR ) break;
 776                 if ( tmp.sml_type.bv_val == NULL ) break;
 777
 778                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ));
 779
 780                 mod->sml_op = LDAP_MOD_REPLACE;
 781                 mod->sml_next = NULL;
 782                 mod->sml_desc = NULL;
 783                 mod->sml_type = tmp.sml_type;
 784                 mod->sml_bvalues = tmp.sml_bvalues;
 785                 mod->sml_nvalues = NULL;
 786
 787                 *modtail = mod;
 788                 modtail = &mod->sml_next;
 789         }
 790
 791         if ( ber_scanf( ber, "}") == LBER_ERROR ) {
 792 #ifdef NEW_LOGGING
 793                 LDAP_LOG( OPERATION, ERR,
 794                                 "syncrepl_message_to_entry: ber_scanf failed\n", 0, 0, 0 );
 795 #else
 796                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: ber_scanf failed\n",
 797                                 0, 0, 0 );
 798 #endif
 799                 return NULL;
 800         }
 801
 802         ber_free( ber, 0 );
 803         tmpber = ldap_get_message_ber( msg );
 804         ber = ber_dup( tmpber );
 805
 806         ber_scanf( ber, "{xx" );
 807
 808         rc = ldap_pvt_get_controls( ber, &rctrls );
 809         if ( rc != LDAP_SUCCESS ) {
 810 #ifdef NEW_LOGGING
 811                 LDAP_LOG( OPERATION, ERR,
 812                         "syncrepl_message_to_entry : control get failed (%d)", rc, 0, 0 );
 813 #else
 814                 Debug( LDAP_DEBUG_ANY,
 815                         "syncrepl_message_to_entry : control get failed (%d)", rc, 0, 0 );
 816 #endif
 817                 return NULL;
 818         }
 819
 820         if ( rctrls ) {
 821                 rctrlp = *rctrls;
 822                 ctrl_ber = ber_alloc_t( LBER_USE_DER );
 823                 ber_set_option( ctrl_ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 824                 ber_write( ctrl_ber, rctrlp->ldctl_value.bv_val, rctrlp->ldctl_value.bv_len, 0 );
 825                 ber_reset( ctrl_ber, 1 );
 826                 ber_scanf( ctrl_ber, "{eo", syncstate, syncUUID );
 827                 if ( ber_peek_tag( ctrl_ber, &len ) == LDAP_SYNC_TAG_COOKIE ) {
 828                         ber_scanf( ctrl_ber, "o}", syncCookie );
 829                 }
 830                 ber_free( ctrl_ber, 1 );
 831                 ldap_controls_free( rctrls );
 832         } else {
 833 #ifdef NEW_LOGGING
 834                 LDAP_LOG( OPERATION, ERR,"syncrepl_message_to_entry : "
 835                         " rctrls absent\n", 0, 0, 0 );
 836 #else
 837                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry :"
 838                         " rctrls absent\n", 0, 0, 0 );
 839 #endif
 840         }
 841
 842         if ( *syncstate == LDAP_SYNC_PRESENT || *syncstate == LDAP_SYNC_DELETE ) {
 843                 goto done;
 844         }
 845
 846         if ( *modlist == NULL ) {
 847 #ifdef NEW_LOGGING
 848                 LDAP_LOG( OPERATION, ERR,
 849                                 "syncrepl_message_to_entry: no attributes\n", 0, 0, 0 );
 850 #else
 851                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: no attributes\n",
 852                                 0, 0, 0 );
 853 #endif
 854         }
 855
 856         ml = *modlist;
 857         while ( ml != NULL ) {
 858                 AttributeDescription *ad = NULL;
 859         rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, &text );
 860
 861                 if( rc != LDAP_SUCCESS ) {
 862                         e = NULL;
 863                         goto done;
 864                 }
 865
 866                 ad = ml->sml_desc;
 867                 ml->sml_desc = NULL;
 868                 ml = ml->sml_next;
 869         }
 870
 871         rc = slap_mods_check( *modlist, 1, &text, txtbuf, textlen, NULL );
 872
 873         if ( rc != LDAP_SUCCESS ) {
 874 #ifdef NEW_LOGGING
 875                 LDAP_LOG( OPERATION, ERR,
 876                                 "syncrepl_message_to_entry: mods check (%s)\n", text, 0, 0 );
 877 #else
 878                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods check (%s)\n",
 879                                 text, 0, 0 );
 880 #endif
 881                 return NULL;
 882         }
 883
 884         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
 885         if( rc != LDAP_SUCCESS ) {
 886 #ifdef NEW_LOGGING
 887                 LDAP_LOG( OPERATION, ERR,
 888                                 "syncrepl_message_to_entry: mods2entry (%s)\n", text, 0, 0 );
 889 #else
 890                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods2entry (%s)\n",
 891                                 text, 0, 0 );
 892 #endif
 893         }
 894
 895 done:
 896
 897         ber_free ( ber, 0 );
 898
 899         return e;
 900 }
 901
 902 int
 903 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
 904 {
 905         const struct berval *uuid1 = v_uuid1;
 906         const struct berval *uuid2 = v_uuid2;
 907         int rc = uuid1->bv_len - uuid2->bv_len;
 908         if ( rc ) return rc;
 909         return ( strcmp( uuid1->bv_val, uuid2->bv_val ) );
 910 }
 911
 912 int
 913 syncrepl_entry(
 914         syncinfo_t* si,
 915         LDAP *ld,
 916         Operation *op,
 917         Entry* e,
 918         Modifications* modlist,
 919         int syncstate,
 920         struct berval* syncUUID,
 921         struct berval* syncCookie,
 922         int refresh
 923 )
 924 {
 925         Backend *be = op->o_bd;
 926         slap_callback   cb;
 927         struct berval   csn_bv = {0, NULL};
 928         struct berval   *syncuuid_bv = NULL;
 929         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 930
 931         SlapReply       rs = {REP_RESULT};
 932         int rc = LDAP_SUCCESS;
 933
 934         struct berval base_bv = {0, NULL};
 935
 936         char *filterstr;
 937         Filter *filter;
 938
 939         Attribute *a;
 940
 941         if ( refresh &&
 942                         ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD )) {
 943                 syncuuid_bv = ber_dupbv( NULL, syncUUID );
 944                 avl_insert( &si->presentlist, (caddr_t) syncuuid_bv,
 945                                                 syncuuid_cmp, avl_dup_error );
 946         }
 947
 948         if ( syncstate == LDAP_SYNC_PRESENT ) {
 949                 if ( e ) {
 950                         return 1;
 951                 } else {
 952                         return 0;
 953                 }
 954         }
 955
 956         filterstr = (char *) sl_malloc( strlen("entryUUID=") + syncUUID->bv_len + 1,
 957                                                                         op->o_tmpmemctx );
 958         strcpy( filterstr, "entryUUID=" );
 959         strcat( filterstr, syncUUID->bv_val );
 960
 961         si->e = e;
 962         si->syncUUID_ndn = NULL;
 963
 964         filter = str2filter( filterstr );
 965         ber_str2bv( filterstr, strlen(filterstr), 1, &op->ors_filterstr );
 966         ch_free( filterstr );
 967         op->ors_filter = filter;
 968         op->ors_scope = LDAP_SCOPE_SUBTREE;
 969
 970         /* get syncrepl cookie of shadow replica from subentry */
 971         ber_str2bv( si->base, strlen(si->base), 1, &base_bv );
 972         dnPrettyNormal( 0, &base_bv, &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx );
 973         ch_free( base_bv.bv_val );
 974
 975         /* set callback function */
 976         op->o_callback = &cb;
 977         cb.sc_response = dn_callback;
 978         cb.sc_private = si;
 979
 980         si->syncUUID_ndn = NULL;
 981
 982         rc = be->be_search( op, &rs );
 983
 984         if ( op->o_req_dn.bv_val )
 985                 ch_free( op->o_req_dn.bv_val );
 986         if ( op->o_req_ndn.bv_val )
 987                 ch_free( op->o_req_ndn.bv_val );
 988         if ( op->ors_filter )
 989                 filter_free( op->ors_filter );
 990         if ( op->ors_filterstr.bv_val )
 991                 ch_free( op->ors_filterstr.bv_val );
 992
 993         cb.sc_response = null_callback;
 994         cb.sc_private = si;
 995
 996         if ( rc == LDAP_SUCCESS && si->syncUUID_ndn && si->sync_mode != LDAP_SYNC_LOG_MODE ) {
 997                 op->o_req_dn = *si->syncUUID_ndn;
 998                 op->o_req_ndn = *si->syncUUID_ndn;
 999                 op->o_tag = LDAP_REQ_DELETE;
1000                 rc = be->be_delete( op, &rs );
1001         }
1002
1003         if ( si->syncUUID_ndn ) {
1004                 ber_bvfree( si->syncUUID_ndn );
1005         }
1006
1007         switch ( syncstate ) {
1008         case LDAP_SYNC_ADD :
1009         case LDAP_SYNC_MODIFY :
1010
1011                 if ( rc == LDAP_SUCCESS ||
1012                          rc == LDAP_REFERRAL ||
1013                          rc == LDAP_NO_SUCH_OBJECT ) {
1014
1015                         attr_delete( &e->e_attrs, slap_schema.si_ad_entryUUID );
1016                         attr_merge_normalize_one( e, slap_schema.si_ad_entryUUID, syncUUID, op->o_tmpmemctx );
1017
1018                         op->o_tag = LDAP_REQ_ADD;
1019                         op->ora_e = e;
1020                         op->o_req_dn = e->e_name;
1021                         op->o_req_ndn = e->e_nname;
1022                         rc = be->be_add( op, &rs );
1023
1024                         if ( rc != LDAP_SUCCESS ) {
1025                                 if ( rc == LDAP_ALREADY_EXISTS ) {
1026                                         op->o_tag = LDAP_REQ_MODIFY;
1027                                         op->orm_modlist = modlist;
1028                                         op->o_req_dn = e->e_name;
1029                                         op->o_req_ndn = e->e_nname;
1030                                         rc = be->be_modify( op, &rs );
1031                                         si->e = NULL;
1032                                         if ( rc != LDAP_SUCCESS ) {
1033 #ifdef NEW_LOGGING
1034                                                 LDAP_LOG( OPERATION, ERR,
1035                                                         "syncrepl_entry : be_modify failed (%d)\n",
1036                                                         rc, 0, 0 );
1037 #else
1038                                                 Debug( LDAP_DEBUG_ANY,
1039                                                         "syncrepl_entry : be_modify failed (%d)\n",
1040                                                         rc, 0, 0 );
1041 #endif
1042                                         }
1043                                         return 1;
1044                                 } else if ( rc == LDAP_REFERRAL ||
1045                                                         rc == LDAP_NO_SUCH_OBJECT ) {
1046                                         syncrepl_add_glue( si, ld, op, e,
1047                                                 modlist, syncstate,
1048                                                 syncUUID, syncCookie);
1049                                         si->e = NULL;
1050                                         return 0;
1051                                 } else {
1052 #ifdef NEW_LOGGING
1053                                         LDAP_LOG( OPERATION, ERR,
1054                                                 "syncrepl_entry : be_add failed (%d)\n",
1055                                                 rc, 0, 0 );
1056 #else
1057                                         Debug( LDAP_DEBUG_ANY,
1058                                                 "syncrepl_entry : be_add failed (%d)\n",
1059                                                 rc, 0, 0 );
1060 #endif
1061                                         si->e = NULL;
1062                                         return 1;
1063                                 }
1064                         } else {
1065                                 si->e = NULL;
1066                                 be_entry_release_w( op, e );
1067                                 return 0;
1068                         }
1069                 } else {
1070 #ifdef NEW_LOGGING
1071                         LDAP_LOG( OPERATION, ERR,
1072                                 "syncrepl_entry : be_search failed (%d)\n", rc, 0, 0 );
1073 #else
1074                         Debug( LDAP_DEBUG_ANY,
1075                                 "syncrepl_entry : be_search failed (%d)\n", rc, 0, 0 );
1076 #endif
1077                         si->e = NULL;
1078                         return 1;
1079                 }
1080
1081         case LDAP_SYNC_DELETE :
1082                 if ( si->sync_mode == LDAP_SYNC_LOG_MODE ) {
1083                         op->o_req_dn = *si->syncUUID_ndn;
1084                         op->o_req_ndn = *si->syncUUID_ndn;
1085                         op->o_tag = LDAP_REQ_DELETE;
1086                         rc = be->be_delete( op, &rs );
1087                 }
1088                 /* Already deleted otherwise */
1089                 return 1;
1090
1091         default :
1092 #ifdef NEW_LOGGING
1093                 LDAP_LOG( OPERATION, ERR,
1094                         "syncrepl_entry : unknown syncstate\n", 0, 0, 0 );
1095 #else
1096                 Debug( LDAP_DEBUG_ANY,
1097                         "syncrepl_entry : unknown syncstate\n", 0, 0, 0 );
1098 #endif
1099                 return 1;
1100         }
1101 }
1102
1103 static void
1104 syncrepl_del_nonpresent(
1105         LDAP *ld,
1106         Operation *op
1107 )
1108 {
1109         Backend* be = op->o_bd;
1110         syncinfo_t *si = op->o_si;
1111         slap_callback   cb;
1112         struct berval   base_bv = {0, NULL};
1113         Filter *filter;
1114         SlapReply       rs = {REP_RESULT};
1115         struct berval   filterstr_bv = {0, NULL};
1116         struct nonpresent_entry *np_list, *np_prev;
1117
1118         ber_str2bv( si->base, strlen(si->base), 1, &base_bv );
1119         dnPrettyNormal(0, &base_bv, &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx );
1120         ch_free( base_bv.bv_val );
1121
1122         filter = str2filter( si->filterstr );
1123
1124         cb.sc_response = nonpresent_callback;
1125         cb.sc_private = si;
1126
1127         op->o_callback = &cb;
1128         op->o_tag = LDAP_REQ_SEARCH;
1129         op->ors_scope = si->scope;
1130         op->ors_deref = LDAP_DEREF_NEVER;
1131         op->ors_slimit = 0;
1132         op->ors_tlimit = 0;
1133         op->ors_attrsonly = 0;
1134         op->ors_attrs = NULL;
1135         op->ors_filter = filter;
1136         ber_str2bv( si->filterstr, strlen( si->filterstr ), 1, &op->ors_filterstr );
1137
1138         op->o_nocaching = 1;
1139         be->be_search( op, &rs );
1140         op->o_nocaching = 0;
1141
1142         if ( op->o_req_dn.bv_val )
1143                 ch_free( op->o_req_dn.bv_val );
1144         if ( op->o_req_ndn.bv_val )
1145                 ch_free( op->o_req_ndn.bv_val );
1146         if ( op->ors_filter )
1147                 filter_free( op->ors_filter );
1148         if ( op->ors_filterstr.bv_val )
1149                 ch_free( op->ors_filterstr.bv_val );
1150
1151         if ( !LDAP_LIST_EMPTY( &si->nonpresentlist ) ) {
1152                 np_list = LDAP_LIST_FIRST( &si->nonpresentlist );
1153                 while ( np_list != NULL ) {
1154                         LDAP_LIST_REMOVE( np_list, np_link );
1155                         np_prev = np_list;
1156                         np_list = LDAP_LIST_NEXT( np_list, np_link );
1157                         op->o_tag = LDAP_REQ_DELETE;
1158                         op->o_callback = &cb;
1159                         cb.sc_response = null_callback;
1160                         cb.sc_private = si;
1161                         op->o_req_dn = *np_prev->dn;
1162                         op->o_req_ndn = *np_prev->ndn;
1163                         op->o_bd->be_delete( op, &rs );
1164                         ber_bvfree( np_prev->dn );
1165                         ber_bvfree( np_prev->ndn );
1166                         op->o_req_dn.bv_val = NULL;
1167                         op->o_req_ndn.bv_val = NULL;
1168                         ch_free( np_prev );
1169                 }
1170         }
1171
1172         return;
1173 }
1174
1175
1176 void
1177 syncrepl_add_glue(
1178         syncinfo_t *si,
1179         LDAP *ld,
1180         Operation* op,
1181         Entry *e,
1182         Modifications* modlist,
1183         int syncstate,
1184         struct berval* syncUUID,
1185         struct berval* syncCookie
1186 )
1187 {
1188         Backend *be = op->o_bd;
1189         struct berval   uuid_bv = {0, NULL};
1190         slap_callback cb;
1191         Attribute       *a;
1192         int     rc;
1193         char    uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
1194         int levels = 0;
1195         int i, j, k;
1196         struct berval dn = {0, NULL};
1197         struct berval pdn = {0, NULL};
1198         struct berval ndn = {0, NULL};
1199         struct berval rdn = {0, NULL};
1200         Entry   *glue;
1201         SlapReply       rs = {REP_RESULT};
1202         Connection *conn = op->o_conn;
1203         char* ptr;
1204
1205         op->o_tag = LDAP_REQ_ADD;
1206         op->o_callback = &cb;
1207         cb.sc_response = null_callback;
1208         cb.sc_private = si;
1209
1210         ber_dupbv( &dn, &e->e_nname );
1211         ber_dupbv( &pdn, &e->e_nname );
1212
1213         ptr = dn.bv_val;
1214         while ( !be_issuffix ( be, &pdn )) {
1215                 dnParent( &dn, &pdn );
1216                 dn.bv_val = pdn.bv_val;
1217                 dn.bv_len = pdn.bv_len;
1218                 levels++;
1219         }
1220         ch_free( ptr );
1221
1222         for ( i = 0; i <= levels; i++ ) {
1223                 glue = (Entry*) ch_calloc( 1, sizeof(Entry) );
1224                 ber_dupbv( &dn, &e->e_nname );
1225                 j = levels - i;
1226
1227                 ptr = dn.bv_val;
1228                 for ( k = 0; k < j; k++ ) {
1229                         dnParent( &dn, &pdn );
1230                         dn.bv_val = pdn.bv_val;
1231                         dn.bv_len = pdn.bv_len;
1232                 }
1233
1234                 dnPrettyNormal( 0, &dn, &pdn, &ndn, op->o_tmpmemctx );
1235                 ber_dupbv( &glue->e_name, &pdn );
1236                 ber_dupbv( &glue->e_nname, &ndn );
1237                 ch_free( ptr );
1238                 ch_free( pdn.bv_val );
1239                 ch_free( ndn.bv_val );
1240
1241                 a = ch_calloc( 1, sizeof( Attribute ));
1242                 a->a_desc = slap_schema.si_ad_objectClass;
1243
1244                 a->a_vals = ch_calloc( 3, sizeof( struct berval ));
1245                 ber_str2bv( "top", strlen("top"), 1, &a->a_vals[0] );
1246                 ber_str2bv( "glue", strlen("glue"), 1, &a->a_vals[1] );
1247                 a->a_vals[2].bv_len = 0;
1248                 a->a_vals[2].bv_val = NULL;
1249
1250                 a->a_nvals = ch_calloc( 3, sizeof( struct berval ));
1251                 ber_str2bv( "top", strlen("top"), 1, &a->a_nvals[0] );
1252                 ber_str2bv( "glue", strlen("glue"), 1, &a->a_nvals[1] );
1253                 a->a_nvals[2].bv_len = 0;
1254                 a->a_nvals[2].bv_val = NULL;
1255
1256                 a->a_next = glue->e_attrs;
1257                 glue->e_attrs = a;
1258
1259                 a = ch_calloc( 1, sizeof( Attribute ));
1260                 a->a_desc = slap_schema.si_ad_structuralObjectClass;
1261
1262                 a->a_vals = ch_calloc( 2, sizeof( struct berval ));
1263                 ber_str2bv( "glue", strlen("glue"), 1, &a->a_vals[0] );
1264                 a->a_vals[1].bv_len = 0;
1265                 a->a_vals[1].bv_val = NULL;
1266
1267                 a->a_nvals = ch_calloc( 2, sizeof( struct berval ));
1268                 ber_str2bv( "glue", strlen("glue"), 1, &a->a_nvals[0] );
1269                 a->a_nvals[1].bv_len = 0;
1270                 a->a_nvals[1].bv_val = NULL;
1271
1272                 a->a_next = glue->e_attrs;
1273                 glue->e_attrs = a;
1274
1275                 if ( !strcmp( e->e_nname.bv_val, glue->e_nname.bv_val )) {
1276                         op->o_req_dn = e->e_name;
1277                         op->o_req_ndn = e->e_nname;
1278                         op->ora_e = e;
1279                         rc = be->be_add ( op, &rs );
1280                         if ( rc == LDAP_SUCCESS )
1281                                 be_entry_release_w( op, e );
1282                         else
1283                                 entry_free( e );
1284                         entry_free( glue );
1285                 } else {
1286                         op->o_req_dn = glue->e_name;
1287                         op->o_req_ndn = glue->e_nname;
1288                         op->ora_e = glue;
1289                         rc = be->be_add ( op, &rs );
1290                         if ( rc == LDAP_SUCCESS ) {
1291                                 be_entry_release_w( op, glue );
1292                         } else {
1293                         /* incl. ALREADY EXIST */
1294                                 entry_free( glue );
1295                         }
1296                 }
1297         }
1298
1299         return;
1300 }
1301
1302 static struct berval ocbva[] = {
1303         BER_BVC("top"),
1304         BER_BVC("subentry"),
1305         BER_BVC("syncConsumerSubentry"),
1306         BER_BVNULL
1307 };
1308
1309 static struct berval cnbva[] = {
1310         BER_BVNULL,
1311         BER_BVNULL
1312 };
1313
1314 static struct berval ssbva[] = {
1315         BER_BVC("{}"),
1316         BER_BVNULL
1317 };
1318
1319 static struct berval scbva[] = {
1320         BER_BVC("subentry"),
1321         BER_BVNULL
1322 };
1323
1324 void
1325 syncrepl_updateCookie(
1326         syncinfo_t *si,
1327         LDAP *ld,
1328         Operation *op,
1329         struct berval *pdn,
1330         struct berval *syncCookie
1331 )
1332 {
1333         Backend *be = op->o_bd;
1334         Modifications *ml;
1335         Modifications *mlnext;
1336         Modifications *mod;
1337         Modifications *modlist = NULL;
1338         Modifications **modtail = &modlist;
1339
1340         const char      *text;
1341         char txtbuf[SLAP_TEXT_BUFLEN];
1342         size_t textlen = sizeof txtbuf;
1343
1344         Entry* e = NULL;
1345         int rc;
1346
1347         struct berval slap_syncrepl_dn_bv = BER_BVNULL;
1348         struct berval slap_syncrepl_cn_bv = BER_BVNULL;
1349
1350         slap_callback cb;
1351         SlapReply       rs = {REP_RESULT};
1352
1353         /* update in memory cookie */
1354         if ( si->syncCookie != NULL ) {
1355                 ber_bvfree( si->syncCookie );
1356         }
1357         si->syncCookie = ber_dupbv( NULL, syncCookie );
1358         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1359         mod->sml_op = LDAP_MOD_REPLACE;
1360         mod->sml_desc = slap_schema.si_ad_objectClass;
1361         mod->sml_type = mod->sml_desc->ad_cname;
1362         mod->sml_bvalues = ocbva;
1363         *modtail = mod;
1364         modtail = &mod->sml_next;
1365
1366         ber_dupbv( &cnbva[0], (struct berval *) &slap_syncrepl_bvc );
1367         cnbva[0].bv_len = snprintf( cnbva[0].bv_val,
1368                                                                 slap_syncrepl_bvc.bv_len,
1369                                                                 "syncrepl%d", si->id );
1370         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1371         mod->sml_op = LDAP_MOD_REPLACE;
1372         mod->sml_desc = slap_schema.si_ad_cn;
1373         mod->sml_type = mod->sml_desc->ad_cname;
1374         mod->sml_bvalues = cnbva;
1375         *modtail = mod;
1376         modtail = &mod->sml_next;
1377
1378         ber_dupbv( &scbva[0], si->syncCookie );
1379         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1380         mod->sml_op = LDAP_MOD_REPLACE;
1381         mod->sml_desc = slap_schema.si_ad_syncreplCookie;
1382         mod->sml_type = mod->sml_desc->ad_cname;
1383         mod->sml_bvalues = scbva;
1384         *modtail = mod;
1385         modtail = &mod->sml_next;
1386
1387         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1388         mod->sml_op = LDAP_MOD_REPLACE;
1389         mod->sml_desc = slap_schema.si_ad_subtreeSpecification;
1390         mod->sml_type = mod->sml_desc->ad_cname;
1391         mod->sml_bvalues = ssbva;
1392         *modtail = mod;
1393         modtail = &mod->sml_next;
1394
1395 #if 0
1396         rc = slap_mods_check( modlist, 1, &text, txtbuf, textlen, NULL );
1397
1398         if ( rc != LDAP_SUCCESS ) {
1399 #ifdef NEW_LOGGING
1400                 LDAP_LOG( OPERATION, ERR,
1401                                 "syncrepl_updateCookie: mods check (%s)\n", text, 0, 0 );
1402 #else
1403                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods check (%s)\n",
1404                          text, 0, 0 );
1405 #endif
1406         }
1407 #endif
1408
1409         op->o_tag = LDAP_REQ_ADD;
1410         rc = slap_mods_opattrs( op, modlist, modtail,
1411                                                          &text,txtbuf, textlen );
1412
1413         for ( ml = modlist; ml != NULL; ml = mlnext ) {
1414                 mlnext = ml->sml_next;
1415                 ml->sml_op = LDAP_MOD_REPLACE;
1416         }
1417
1418         if( rc != LDAP_SUCCESS ) {
1419 #ifdef NEW_LOGGING
1420                 LDAP_LOG( OPERATION, ERR,
1421                                 "syncrepl_updateCookie: mods opattrs (%s)\n", text, 0, 0 );
1422 #else
1423                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods opattrs (%s)\n",
1424                          text, 0, 0 );
1425 #endif
1426         }
1427
1428         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
1429
1430         ber_dupbv( &slap_syncrepl_cn_bv, (struct berval *) &slap_syncrepl_cn_bvc );
1431         slap_syncrepl_cn_bv.bv_len = snprintf( slap_syncrepl_cn_bv.bv_val,
1432                                                                                 slap_syncrepl_cn_bvc.bv_len,
1433                                                                                 "cn=syncrepl%d", si->id );
1434
1435         build_new_dn( &slap_syncrepl_dn_bv, pdn, &slap_syncrepl_cn_bv, NULL );
1436         dnPrettyNormal( NULL, &slap_syncrepl_dn_bv, &e->e_name, &e->e_nname, NULL );
1437
1438         if ( slap_syncrepl_cn_bv.bv_val )
1439                 ch_free( slap_syncrepl_cn_bv.bv_val );
1440         if ( slap_syncrepl_dn_bv.bv_val )
1441                 ch_free( slap_syncrepl_dn_bv.bv_val );
1442
1443         e->e_attrs = NULL;
1444
1445         rc = slap_mods2entry( modlist, &e, 1, 1, &text, txtbuf, textlen );
1446
1447         if( rc != LDAP_SUCCESS ) {
1448 #ifdef NEW_LOGGING
1449                 LDAP_LOG( OPERATION, ERR,
1450                                 "syncrepl_updateCookie: mods2entry (%s)\n", text, 0, 0 );
1451 #else
1452                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods2entry (%s)\n",
1453                          text, 0, 0 );
1454 #endif
1455         }
1456
1457         cb.sc_response = null_callback;
1458         cb.sc_private = si;
1459
1460         op->o_callback = &cb;
1461         op->o_req_dn = e->e_name;
1462         op->o_req_ndn = e->e_nname;
1463
1464         /* update persistent cookie */
1465 update_cookie_retry:
1466         op->o_tag = LDAP_REQ_MODIFY;
1467         op->orm_modlist = modlist;
1468         rc = be->be_modify( op, &rs );
1469
1470         if ( rc != LDAP_SUCCESS ) {
1471                 if ( rc == LDAP_REFERRAL ||
1472                          rc == LDAP_NO_SUCH_OBJECT ) {
1473                         op->o_tag = LDAP_REQ_ADD;
1474                         op->ora_e = e;
1475                         rc = be->be_add( op, &rs );
1476                         if ( rc != LDAP_SUCCESS ) {
1477                                 if ( rc == LDAP_ALREADY_EXISTS ) {
1478                                         goto update_cookie_retry;
1479                                 } else if ( rc == LDAP_REFERRAL ||
1480                                                         rc == LDAP_NO_SUCH_OBJECT ) {
1481 #ifdef NEW_LOGGING
1482                                         LDAP_LOG( OPERATION, ERR,
1483                                                 "cookie will be non-persistent\n",
1484                                                 0, 0, 0 );
1485 #else
1486                                         Debug( LDAP_DEBUG_ANY,
1487                                                 "cookie will be non-persistent\n",
1488                                                 0, 0, 0 );
1489 #endif
1490                                 } else {
1491 #ifdef NEW_LOGGING
1492                                         LDAP_LOG( OPERATION, ERR,
1493                                                 "be_add failed (%d)\n",
1494                                                 rc, 0, 0 );
1495 #else
1496                                         Debug( LDAP_DEBUG_ANY,
1497                                                 "be_add failed (%d)\n",
1498                                                 rc, 0, 0 );
1499 #endif
1500                                 }
1501                         } else {
1502                                 be_entry_release_w( op, e );
1503                                 goto done;
1504                         }
1505                 } else {
1506 #ifdef NEW_LOGGING
1507                         LDAP_LOG( OPERATION, ERR,
1508                                 "be_modify failed (%d)\n", rc, 0, 0 );
1509 #else
1510                         Debug( LDAP_DEBUG_ANY,
1511                                 "be_modify failed (%d)\n", rc, 0, 0 );
1512 #endif
1513                 }
1514         }
1515
1516         if ( e != NULL ) {
1517                 entry_free( e );
1518         }
1519
1520 done :
1521
1522         if ( cnbva[0].bv_val )
1523                 ch_free( cnbva[0].bv_val );
1524
1525         for ( ; ml != NULL; ml = mlnext ) {
1526                 mlnext = ml->sml_next;
1527                 free( ml );
1528         }
1529
1530         return;
1531 }
1532
1533 void
1534 avl_ber_bvfree( void *bv )
1535 {
1536         if( bv == NULL ) {
1537                 return;
1538         }
1539         if ( ((struct berval *)bv)->bv_val != NULL ) {
1540                 ch_free ( ((struct berval *)bv)->bv_val );
1541         }
1542         ch_free ( (char *) bv );
1543 }
1544
1545 static int
1546 cookie_callback(
1547         Operation* op,
1548         SlapReply* rs
1549 )
1550 {
1551         syncinfo_t *si = op->o_callback->sc_private;
1552         Attribute *a;
1553
1554         if ( rs->sr_type != REP_SEARCH ) return LDAP_SUCCESS;
1555
1556         a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_syncreplCookie );
1557
1558         if ( a == NULL ) {
1559                 si->syncCookie = NULL;
1560         } else {
1561                 si->syncCookie = ber_dupbv( NULL, &a->a_vals[0] );
1562         }
1563         return LDAP_SUCCESS;
1564 }
1565
1566 static int
1567 dn_callback(
1568         Operation*      op,
1569         SlapReply*      rs
1570 )
1571 {
1572         syncinfo_t *si = op->o_callback->sc_private;
1573
1574         if ( rs->sr_type == REP_SEARCH ) {
1575                 if ( si->syncUUID_ndn != NULL ) {
1576 #ifdef NEW_LOGGING
1577                         LDAP_LOG( OPERATION, ERR,
1578                                 "dn_callback : multiple entries match dn\n", 0, 0, 0 );
1579 #else
1580                         Debug( LDAP_DEBUG_ANY,
1581                                 "dn_callback : multiple entries match dn\n", 0, 0, 0 );
1582 #endif
1583                 } else {
1584                         if ( rs->sr_entry == NULL ) {
1585                                 si->syncUUID_ndn = NULL;
1586                         } else {
1587                                 si->syncUUID_ndn = ber_dupbv( NULL, &rs->sr_entry->e_nname );
1588                         }
1589                 }
1590         }
1591
1592         return LDAP_SUCCESS;
1593 }
1594
1595 static int
1596 nonpresent_callback(
1597         Operation*      op,
1598         SlapReply*      rs
1599 )
1600 {
1601         syncinfo_t *si = op->o_callback->sc_private;
1602         Attribute *a;
1603         int count = 0;
1604         struct berval* present_uuid = NULL;
1605         slap_callback cb;
1606         SlapReply       rs_cb = {REP_RESULT};
1607         struct nonpresent_entry *np_entry;
1608
1609         if ( rs->sr_type == REP_RESULT ) {
1610                 count = avl_free( si->presentlist, avl_ber_bvfree );
1611                 si->presentlist = NULL;
1612                 return LDAP_SUCCESS;
1613         } else if ( rs->sr_type == REP_SEARCH ) {
1614                 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
1615
1616                 if ( a == NULL )
1617                         return 0;
1618
1619                 present_uuid = avl_find( si->presentlist, &a->a_vals[0], syncuuid_cmp );
1620
1621                 if ( present_uuid == NULL ) {
1622                         np_entry = (struct nonpresent_entry *)
1623                                                 ch_calloc( 1, sizeof( struct nonpresent_entry ));
1624                         np_entry->dn = ber_dupbv( NULL, &rs->sr_entry->e_name );
1625                         np_entry->ndn = ber_dupbv( NULL, &rs->sr_entry->e_nname );
1626                         LDAP_LIST_INSERT_HEAD( &si->nonpresentlist, np_entry, np_link );
1627                 } else {
1628                         avl_delete( &si->presentlist,
1629                                         &a->a_vals[0], syncuuid_cmp );
1630                         ch_free( present_uuid->bv_val );
1631                         ch_free( present_uuid );
1632                 }
1633                 return LDAP_SUCCESS;
1634         } else {
1635                 return LDAP_SUCCESS;
1636         }
1637
1638 }
1639
1640 static int
1641 null_callback(
1642         Operation*      op,
1643         SlapReply*      rs
1644 )
1645 {
1646         syncinfo_t *si = op->o_callback->sc_private;
1647
1648         if ( rs->sr_err != LDAP_SUCCESS &&
1649                  rs->sr_err != LDAP_REFERRAL &&
1650                  rs->sr_err != LDAP_ALREADY_EXISTS &&
1651                  rs->sr_err != LDAP_NO_SUCH_OBJECT ) {
1652 #ifdef NEW_LOGGING
1653                 LDAP_LOG( OPERATION, ERR,
1654                         "null_callback : error code 0x%x\n",
1655                         rs->sr_err, 0, 0 );
1656 #else
1657                 Debug( LDAP_DEBUG_ANY,
1658                         "null_callback : error code 0x%x\n",
1659                         rs->sr_err, 0, 0 );
1660 #endif
1661         }
1662         return LDAP_SUCCESS;
1663 }
1664
1665 Entry *
1666 slap_create_syncrepl_entry(
1667         Backend *be,
1668         struct berval *context_csn,
1669         struct berval *rdn,
1670         struct berval *cn
1671 )
1672 {
1673         Entry* e;
1674         int rc;
1675
1676         struct berval bv;
1677
1678         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
1679
1680         attr_merge( e, slap_schema.si_ad_objectClass, ocbva, NULL );
1681
1682         attr_merge_one( e, slap_schema.si_ad_structuralObjectClass, &ocbva[1], NULL );
1683
1684         attr_merge_one( e, slap_schema.si_ad_cn, cn, NULL );
1685
1686         if ( context_csn ) {
1687                 attr_merge_one( e, slap_schema.si_ad_syncreplCookie,
1688                         context_csn, NULL );
1689         }
1690
1691         bv.bv_val = "{}";
1692         bv.bv_len = sizeof("{}")-1;
1693         attr_merge_one( e, slap_schema.si_ad_subtreeSpecification, &bv, NULL );
1694
1695         build_new_dn( &e->e_name, &be->be_nsuffix[0], rdn, NULL );
1696         ber_dupbv( &e->e_nname, &e->e_name );
1697
1698         return e;
1699 }