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 "lutil.h"
  27 #include "slap.h"
  28 #include "lutil_ldap.h"
  29
  30 #include "ldap_rq.h"
  31
  32 /* FIXME: for ldap_ld_free() */
  33 #undef ldap_debug
  34 #include "../../libraries/libldap/ldap-int.h"
  35
  36 #define SYNCREPL_STR    "syncreplxxx"
  37 #define CN_STR  "cn="
  38
  39 static const struct berval slap_syncrepl_bvc = BER_BVC(SYNCREPL_STR);
  40 static const struct berval slap_syncrepl_cn_bvc = BER_BVC(CN_STR SYNCREPL_STR);
  41
  42 static int syncuuid_cmp( const void *, const void * );
  43 static void avl_ber_bvfree( void * );
  44 static void syncrepl_del_nonpresent( Operation *, syncinfo_t * );
  45
  46 /* callback functions */
  47 static int dn_callback( struct slap_op *, struct slap_rep * );
  48 static int nonpresent_callback( struct slap_op *, struct slap_rep * );
  49 static int null_callback( struct slap_op *, struct slap_rep * );
  50
  51 static AttributeDescription *sync_descs[4];
  52
  53 struct runqueue_s syncrepl_rq;
  54
  55 void
  56 init_syncrepl(syncinfo_t *si)
  57 {
  58         int i, j, k, l, n;
  59         char **attrs, **exattrs;
  60
  61         if ( !sync_descs[0] ) {
  62                 sync_descs[0] = slap_schema.si_ad_objectClass;
  63                 sync_descs[1] = slap_schema.si_ad_structuralObjectClass;
  64                 sync_descs[2] = slap_schema.si_ad_entryCSN;
  65                 sync_descs[3] = NULL;
  66         }
  67
  68         if ( si->si_allattrs && si->si_allopattrs )
  69                 attrs = NULL;
  70         else
  71                 attrs = anlist2attrs( si->si_anlist );
  72
  73         if ( attrs ) {
  74                 if ( si->si_allattrs ) {
  75                         i = 0;
  76                         while ( attrs[i] ) {
  77                                 if ( !is_at_operational( at_find( attrs[i] ))) {
  78                                         for ( j = i; attrs[j] != NULL; j++ ) {
  79                                                 if ( j == i )
  80                                                         ch_free( attrs[i] );
  81                                                 attrs[j] = attrs[j+1];
  82                                         }
  83                                 } else {
  84                                         i++;
  85                                 }
  86                         }
  87                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
  88                         attrs[i] = ch_strdup("*");
  89                         attrs[i + 1] = NULL;
  90
  91                 } else if ( si->si_allopattrs ) {
  92                         i = 0;
  93                         while ( attrs[i] ) {
  94                                 if ( is_at_operational( at_find( attrs[i] ))) {
  95                                         for ( j = i; attrs[j] != NULL; j++ ) {
  96                                                 if ( j == i )
  97                                                         ch_free( attrs[i] );
  98                                                 attrs[j] = attrs[j+1];
  99                                         }
 100                                 } else {
 101                                         i++;
 102                                 }
 103                         }
 104                         attrs = ( char ** ) ch_realloc( attrs, (i + 2)*sizeof( char * ) );
 105                         attrs[i] = ch_strdup("+");
 106                         attrs[i + 1] = NULL;
 107                 }
 108
 109                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 110                         j = 0;
 111                         while ( attrs[j] ) {
 112                                 if ( !strcmp( attrs[j], sync_descs[i]->ad_cname.bv_val )) {
 113                                         for ( k = j; attrs[k] != NULL; k++ ) {
 114                                                 if ( k == j )
 115                                                         ch_free( attrs[k] );
 116                                                 attrs[k] = attrs[k+1];
 117                                         }
 118                                 } else {
 119                                         j++;
 120                                 }
 121                         }
 122                 }
 123
 124                 for ( n = 0; attrs[ n ] != NULL; n++ ) /* empty */;
 125
 126                 if ( si->si_allopattrs ) {
 127                         attrs = ( char ** ) ch_realloc( attrs, (n + 2)*sizeof( char * ));
 128                 } else {
 129                         attrs = ( char ** ) ch_realloc( attrs, (n + 4)*sizeof( char * ));
 130                 }
 131
 132                 if ( attrs == NULL ) {
 133                         Debug( LDAP_DEBUG_ANY, "out of memory\n", 0,0,0 );
 134                 }
 135
 136                 /* Add Attributes */
 137                 if ( si->si_allopattrs ) {
 138                         attrs[n++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 139                 } else {
 140                         for ( i = 0; sync_descs[ i ] != NULL; i++ ) {
 141                                 attrs[ n++ ] = ch_strdup ( sync_descs[i]->ad_cname.bv_val );
 142                         }
 143                 }
 144                 attrs[ n ] = NULL;
 145
 146         } else {
 147
 148                 i = 0;
 149                 if ( si->si_allattrs == si->si_allopattrs ) {
 150                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 151                         attrs[i++] = ch_strdup( "*" );
 152                         attrs[i++] = ch_strdup( "+" );
 153                 } else if ( si->si_allattrs && !si->si_allopattrs ) {
 154                         for ( n = 0; sync_descs[ n ] != NULL; n++ ) ;
 155                         attrs = (char**) ch_malloc( (n+1)* sizeof(char*) );
 156                         attrs[i++] = ch_strdup( "*" );
 157                         for ( j = 1; sync_descs[ j ] != NULL; j++ ) {
 158                                 attrs[i++] = ch_strdup ( sync_descs[j]->ad_cname.bv_val );
 159                         }
 160                 } else if ( !si->si_allattrs && si->si_allopattrs ) {
 161                         attrs = (char**) ch_malloc( 3 * sizeof(char*) );
 162                         attrs[i++] = ch_strdup( "+" );
 163                         attrs[i++] = ch_strdup( sync_descs[0]->ad_cname.bv_val );
 164                 }
 165                 attrs[i] = NULL;
 166         }
 167
 168         si->si_attrs = attrs;
 169
 170         exattrs = anlist2attrs( si->si_exanlist );
 171
 172         if ( exattrs ) {
 173                 for ( n = 0; exattrs[n] != NULL; n++ ) ;
 174
 175                 for ( i = 0; sync_descs[i] != NULL; i++ ) {
 176                         j = 0;
 177                         while ( exattrs[j] != NULL ) {
 178                                 if ( !strcmp( exattrs[j], sync_descs[i]->ad_cname.bv_val )) {
 179                                         for ( k = j; exattrs[k] != NULL; k++ ) {
 180                                                 if ( k == j )
 181                                                         ch_free( exattrs[k] );
 182                                                 exattrs[k] = exattrs[k+1];
 183                                         }
 184                                 } else {
 185                                         j++;
 186                                 }
 187                         }
 188                 }
 189
 190                 for ( i = 0; exattrs[i] != NULL; i++ ) {
 191                         for ( j = 0; si->si_anlist[j].an_name.bv_val; j++ ) {
 192                                 ObjectClass     *oc;
 193                                 if ( ( oc = si->si_anlist[j].an_oc ) ) {
 194                                         k = 0;
 195                                         while ( oc->soc_required[k] ) {
 196                                                 if ( !strcmp( exattrs[i],
 197                                                          oc->soc_required[k]->sat_cname.bv_val )) {
 198                                                         for ( l = i; exattrs[l]; l++ ) {
 199                                                                 if ( l == i )
 200                                                                         ch_free( exattrs[i] );
 201                                                                 exattrs[l] = exattrs[l+1];
 202                                                         }
 203                                                 } else {
 204                                                         k++;
 205                                                 }
 206                                         }
 207                                 }
 208                         }
 209                 }
 210
 211                 for ( i = 0; exattrs[i] != NULL; i++ ) ;
 212
 213                 if ( i != n )
 214                         exattrs = (char **) ch_realloc( exattrs, (i + 1)*sizeof(char *));
 215         }
 216
 217         si->si_exattrs = exattrs;
 218 }
 219
 220 static int
 221 ldap_sync_search(
 222         syncinfo_t *si,
 223         void *ctx )
 224 {
 225         BerElementBuffer berbuf;
 226         BerElement *ber = (BerElement *)&berbuf;
 227         LDAPControl c[2], *ctrls[3];
 228         struct timeval timeout;
 229         ber_int_t       msgid;
 230         int rc;
 231
 232         /* setup LDAP SYNC control */
 233         ber_init2( ber, NULL, LBER_USE_DER );
 234         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &ctx );
 235
 236         if ( si->si_syncCookie.octet_str &&
 237                 !BER_BVISNULL( &si->si_syncCookie.octet_str[0] ) )
 238         {
 239                 ber_printf( ber, "{eO}",
 240                         abs(si->si_type),
 241                         &si->si_syncCookie.octet_str[0] );
 242         } else {
 243                 ber_printf( ber, "{e}",
 244                         abs(si->si_type) );
 245         }
 246
 247         if ( (rc = ber_flatten2( ber, &c[0].ldctl_value, 0 )) == LBER_ERROR ) {
 248                 ber_free_buf( ber );
 249                 return rc;
 250         }
 251
 252         c[0].ldctl_oid = LDAP_CONTROL_SYNC;
 253         c[0].ldctl_iscritical = si->si_type < 0;
 254         ctrls[0] = &c[0];
 255
 256         if ( si->si_authzId ) {
 257                 c[1].ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
 258                 ber_str2bv( si->si_authzId, 0, 0, &c[1].ldctl_value );
 259                 c[1].ldctl_iscritical = 1;
 260                 ctrls[1] = &c[1];
 261                 ctrls[2] = NULL;
 262         } else {
 263                 ctrls[1] = NULL;
 264         }
 265
 266         timeout.tv_sec = si->si_tlimit;
 267         timeout.tv_usec = 0;
 268
 269         rc = ldap_search_ext( si->si_ld, si->si_base.bv_val, si->si_scope,
 270                 si->si_filterstr.bv_val, si->si_attrs, si->si_attrsonly,
 271                 ctrls, NULL, si->si_tlimit > 0 ? &timeout : NULL,
 272                 si->si_slimit, &msgid );
 273         ber_free_buf( ber );
 274         return rc;
 275 }
 276
 277 static int
 278 do_syncrep1(
 279         Operation *op,
 280         syncinfo_t *si )
 281 {
 282         int     rc;
 283         int cmdline_cookie_found = 0;
 284
 285         char syncrepl_cbuf[sizeof(CN_STR SYNCREPL_STR)];
 286         struct berval syncrepl_cn_bv;
 287         struct sync_cookie      *sc = NULL;
 288         struct berval   *psub;
 289 #ifdef HAVE_TLS
 290         void    *ssl;
 291 #endif
 292
 293         psub = &si->si_be->be_nsuffix[0];
 294
 295         /* Init connection to master */
 296         rc = ldap_initialize( &si->si_ld, si->si_provideruri );
 297         if ( rc != LDAP_SUCCESS ) {
 298                 Debug( LDAP_DEBUG_ANY,
 299                         "do_syncrep1: ldap_initialize failed (%s)\n",
 300                         si->si_provideruri, 0, 0 );
 301                 return rc;
 302         }
 303
 304         op->o_protocol = LDAP_VERSION3;
 305         ldap_set_option( si->si_ld, LDAP_OPT_PROTOCOL_VERSION, &op->o_protocol );
 306
 307         /* Bind to master */
 308
 309         if ( si->si_tls ) {
 310                 rc = ldap_start_tls_s( si->si_ld, NULL, NULL );
 311                 if( rc != LDAP_SUCCESS ) {
 312                         Debug( LDAP_DEBUG_ANY,
 313                                 "%s: ldap_start_tls failed (%d)\n",
 314                                 si->si_tls == SYNCINFO_TLS_CRITICAL ? "Error" : "Warning",
 315                                 rc, 0 );
 316                         if( si->si_tls == SYNCINFO_TLS_CRITICAL ) goto done;
 317                 }
 318         }
 319
 320         if ( si->si_bindmethod == LDAP_AUTH_SASL ) {
 321 #ifdef HAVE_CYRUS_SASL
 322                 void *defaults;
 323
 324                 if ( si->si_secprops != NULL ) {
 325                         rc = ldap_set_option( si->si_ld,
 326                                 LDAP_OPT_X_SASL_SECPROPS, si->si_secprops);
 327
 328                         if( rc != LDAP_OPT_SUCCESS ) {
 329                                 Debug( LDAP_DEBUG_ANY, "Error: ldap_set_option "
 330                                         "(%s,SECPROPS,\"%s\") failed!\n",
 331                                         si->si_provideruri, si->si_secprops, 0 );
 332                                 goto done;
 333                         }
 334                 }
 335
 336                 defaults = lutil_sasl_defaults( si->si_ld, si->si_saslmech,
 337                         si->si_realm, si->si_authcId, si->si_passwd, si->si_authzId );
 338
 339                 rc = ldap_sasl_interactive_bind_s( si->si_ld,
 340                                 si->si_binddn,
 341                                 si->si_saslmech,
 342                                 NULL, NULL,
 343                                 LDAP_SASL_QUIET,
 344                                 lutil_sasl_interact,
 345                                 defaults );
 346
 347                 lutil_sasl_freedefs( defaults );
 348
 349                 /* FIXME: different error behaviors according to
 350                  *      1) return code
 351                  *      2) on err policy : exit, retry, backoff ...
 352                  */
 353                 if ( rc != LDAP_SUCCESS ) {
 354                         Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
 355                                 "ldap_sasl_interactive_bind_s failed (%d)\n",
 356                                 rc, 0, 0 );
 357
 358                         /* FIXME (see above comment) */
 359                         /* if Kerberos credentials cache is not active, retry */
 360                         if ( strcmp( si->si_saslmech, "GSSAPI" ) == 0 &&
 361                                 rc == LDAP_LOCAL_ERROR )
 362                         {
 363                                 rc = LDAP_SERVER_DOWN;
 364                         }
 365
 366                         goto done;
 367                 }
 368 #else /* HAVE_CYRUS_SASL */
 369                 /* Should never get here, we trapped this at config time */
 370                 assert(0);
 371                 fprintf( stderr, "not compiled with SASL support\n" );
 372                 rc = LDAP_OTHER;
 373                 goto done;
 374 #endif
 375
 376         } else {
 377                 rc = ldap_bind_s( si->si_ld,
 378                         si->si_binddn, si->si_passwd, si->si_bindmethod );
 379                 if ( rc != LDAP_SUCCESS ) {
 380                         Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
 381                                 "ldap_bind_s failed (%d)\n", rc, 0, 0 );
 382                         goto done;
 383                 }
 384         }
 385
 386         /* Set SSF to strongest of TLS, SASL SSFs */
 387         op->o_sasl_ssf = 0;
 388         op->o_tls_ssf = 0;
 389         op->o_transport_ssf = 0;
 390 #ifdef HAVE_TLS
 391         if ( ldap_get_option( si->si_ld, LDAP_OPT_X_TLS_SSL_CTX, &ssl )
 392                 == LDAP_SUCCESS && ssl != NULL )
 393         {
 394                 op->o_tls_ssf = ldap_pvt_tls_get_strength( ssl );
 395         }
 396 #endif /* HAVE_TLS */
 397         ldap_get_option( si->si_ld, LDAP_OPT_X_SASL_SSF, &op->o_sasl_ssf );
 398         op->o_ssf = ( op->o_sasl_ssf > op->o_tls_ssf )
 399                 ?  op->o_sasl_ssf : op->o_tls_ssf;
 400
 401         /* get syncrepl cookie of shadow replica from subentry */
 402         assert( si->si_rid < 1000 );
 403         syncrepl_cn_bv.bv_val = syncrepl_cbuf;
 404         syncrepl_cn_bv.bv_len = snprintf( syncrepl_cbuf, sizeof(syncrepl_cbuf),
 405                 CN_STR "syncrepl%ld", si->si_rid );
 406         build_new_dn( &op->o_req_ndn, psub, &syncrepl_cn_bv, op->o_tmpmemctx );
 407         op->o_req_dn = op->o_req_ndn;
 408
 409         LDAP_STAILQ_FOREACH( sc, &slap_sync_cookie, sc_next ) {
 410                 if ( si->si_rid == sc->rid ) {
 411                         cmdline_cookie_found = 1;
 412                         break;
 413                 }
 414         }
 415
 416         if ( cmdline_cookie_found ) {
 417                 /* cookie is supplied in the command line */
 418                 BerVarray cookie = NULL;
 419                 struct berval cookie_bv;
 420
 421                 LDAP_STAILQ_REMOVE( &slap_sync_cookie, sc, sync_cookie, sc_next );
 422                 slap_sync_cookie_free( &si->si_syncCookie, 0 );
 423
 424                 /* read stored cookie if it exists */
 425                 backend_attribute( op, NULL, &op->o_req_ndn,
 426                         slap_schema.si_ad_syncreplCookie, &cookie, ACL_READ );
 427
 428                 if ( !cookie ) {
 429                         /* no stored cookie */
 430                         if ( sc->ctxcsn == NULL ||
 431                                  BER_BVISNULL( sc->ctxcsn ) ) {
 432                                 /* if cmdline cookie does not have ctxcsn */
 433                                 /* component, set it to an initial value */
 434                                 slap_init_sync_cookie_ctxcsn( sc );
 435                         }
 436                         slap_dup_sync_cookie( &si->si_syncCookie, sc );
 437                         slap_sync_cookie_free( sc, 1 );
 438                         sc = NULL;
 439
 440                 } else {
 441                         /* stored cookie */
 442                         struct berval newcookie = BER_BVNULL;
 443                         ber_dupbv( &cookie_bv, &cookie[0] );
 444                         ber_bvarray_add( &si->si_syncCookie.octet_str, &cookie_bv );
 445                         slap_parse_sync_cookie( &si->si_syncCookie );
 446                         ber_bvarray_free( si->si_syncCookie.octet_str );
 447                         si->si_syncCookie.octet_str = NULL;
 448                         ber_bvarray_free_x( cookie, op->o_tmpmemctx );
 449                         if ( sc->sid != -1 ) {
 450                                 /* command line cookie wins */
 451                                 si->si_syncCookie.sid = sc->sid;
 452                         }
 453                         if ( sc->ctxcsn != NULL ) {
 454                                 /* command line cookie wins */
 455                                 if ( si->si_syncCookie.ctxcsn ) {
 456                                         ber_bvarray_free( si->si_syncCookie.ctxcsn );
 457                                         si->si_syncCookie.ctxcsn = NULL;
 458                                 }
 459                                 ber_dupbv( &cookie_bv, &sc->ctxcsn[0] );
 460                                 ber_bvarray_add( &si->si_syncCookie.ctxcsn, &cookie_bv );
 461                         }
 462                         if ( sc->rid != -1 ) {
 463                                 /* command line cookie wins */
 464                                 si->si_syncCookie.rid = sc->rid;
 465                         }
 466                         slap_sync_cookie_free( sc, 1 );
 467                         sc = NULL;
 468                         slap_compose_sync_cookie( NULL, &newcookie,
 469                                         &si->si_syncCookie.ctxcsn[0],
 470                                         si->si_syncCookie.sid, si->si_syncCookie.rid );
 471                         ber_bvarray_add( &si->si_syncCookie.octet_str, &newcookie );
 472                 }
 473
 474         } else {
 475                 /* no command line cookie is specified */
 476                 if ( si->si_syncCookie.octet_str == NULL ) {
 477                         BerVarray cookie = NULL;
 478                         struct berval cookie_bv;
 479                         /* try to read stored cookie */
 480                         backend_attribute( op, NULL, &op->o_req_ndn,
 481                                 slap_schema.si_ad_syncreplCookie, &cookie, ACL_READ );
 482                         if ( cookie ) {
 483                                 ber_dupbv( &cookie_bv, &cookie[0] );
 484                                 ber_bvarray_add( &si->si_syncCookie.octet_str, &cookie_bv );
 485                                 slap_parse_sync_cookie( &si->si_syncCookie );
 486                                 ber_bvarray_free_x( cookie, op->o_tmpmemctx );
 487                         }
 488                 }
 489         }
 490
 491         rc = ldap_sync_search( si, op->o_tmpmemctx );
 492
 493         if( rc != LDAP_SUCCESS ) {
 494                 Debug( LDAP_DEBUG_ANY, "do_syncrep1: "
 495                         "ldap_search_ext: %s (%d)\n", ldap_err2string( rc ), rc, 0 );
 496         }
 497
 498 done:
 499         if ( rc ) {
 500                 if ( si->si_ld ) {
 501                         ldap_unbind( si->si_ld );
 502                         si->si_ld = NULL;
 503                 }
 504         }
 505
 506         slap_sl_free( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 507
 508         return rc;
 509 }
 510
 511 static int
 512 do_syncrep2(
 513         Operation *op,
 514         syncinfo_t *si )
 515 {
 516         LDAPControl     **rctrls = NULL;
 517         LDAPControl     *rctrlp;
 518
 519         BerElementBuffer berbuf;
 520         BerElement      *ber = (BerElement *)&berbuf;
 521
 522         LDAPMessage     *res = NULL;
 523         LDAPMessage     *msg = NULL;
 524
 525         char            *retoid = NULL;
 526         struct berval   *retdata = NULL;
 527
 528         Entry           *entry = NULL;
 529
 530         int             syncstate;
 531         struct berval   syncUUID = BER_BVNULL;
 532         struct sync_cookie      syncCookie = { NULL, -1, NULL };
 533         struct sync_cookie      syncCookie_req = { NULL, -1, NULL };
 534         struct berval           cookie = BER_BVNULL;
 535
 536         int     rc, err, i;
 537         ber_len_t       len;
 538
 539         int rc_efree = 1;
 540
 541         struct berval   *psub;
 542         Modifications   *modlist = NULL;
 543
 544         const char              *text;
 545         int                             match;
 546
 547         struct timeval *tout_p = NULL;
 548         struct timeval tout = { 0, 0 };
 549
 550         int             refreshDeletes = 0;
 551         int             refreshDone = 1;
 552         BerVarray syncUUIDs = NULL;
 553         ber_tag_t si_tag;
 554
 555         if ( slapd_shutdown ) {
 556                 rc = -2;
 557                 goto done;
 558         }
 559
 560         ber_init2( ber, NULL, LBER_USE_DER );
 561         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 562
 563         Debug( LDAP_DEBUG_TRACE, "=>do_syncrep2\n", 0, 0, 0 );
 564
 565         psub = &si->si_be->be_nsuffix[0];
 566
 567         slap_dup_sync_cookie( &syncCookie_req, &si->si_syncCookie );
 568
 569         if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 570                 tout_p = &tout;
 571         } else {
 572                 tout_p = NULL;
 573         }
 574
 575         while (( rc = ldap_result( si->si_ld, LDAP_RES_ANY, LDAP_MSG_ONE,
 576                 tout_p, &res )) > 0 )
 577         {
 578                 if ( slapd_shutdown ) {
 579                         rc = -2;
 580                         goto done;
 581                 }
 582                 for( msg = ldap_first_message( si->si_ld, res );
 583                         msg != NULL;
 584                         msg = ldap_next_message( si->si_ld, msg ) )
 585                 {
 586                         switch( ldap_msgtype( msg ) ) {
 587                         case LDAP_RES_SEARCH_ENTRY:
 588                                 ldap_get_entry_controls( si->si_ld, msg, &rctrls );
 589                                 /* we can't work without the control */
 590                                 if ( !rctrls ) {
 591                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2: "
 592                                                 "got search entry without "
 593                                                 "control\n", 0, 0, 0 );
 594                                         rc = -1;
 595                                         goto done;
 596                                 }
 597                                 rctrlp = *rctrls;
 598                                 ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 599                                 ber_scanf( ber, "{em" /*"}"*/, &syncstate, &syncUUID );
 600                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 601                                         ber_scanf( ber, /*"{"*/ "m}", &cookie );
 602                                         if ( !BER_BVISNULL( &cookie ) ) {
 603                                                 struct berval tmp_bv;
 604                                                 ber_dupbv( &tmp_bv, &cookie );
 605                                                 ber_bvarray_add( &syncCookie.octet_str, &tmp_bv );
 606                                         }
 607                                         if ( syncCookie.octet_str &&
 608                                                         !BER_BVISNULL( &syncCookie.octet_str[0] ) )
 609                                         {
 610                                                 slap_parse_sync_cookie( &syncCookie );
 611                                         }
 612                                 }
 613                                 if ( syncrepl_message_to_entry( si, op, msg,
 614                                         &modlist, &entry, syncstate ) == LDAP_SUCCESS ) {
 615                                         rc_efree = syncrepl_entry( si, op, entry, modlist,
 616                                                 syncstate, &syncUUID, &syncCookie_req, syncCookie.ctxcsn );
 617                                         if ( syncCookie.octet_str &&
 618                                                 !BER_BVISNULL( &syncCookie.octet_str[0] ) )
 619                                         {
 620                                                 syncrepl_updateCookie( si, op, psub, &syncCookie );
 621                                         }
 622                                 }
 623                                 ldap_controls_free( rctrls );
 624                                 if ( modlist ) {
 625                                         slap_mods_free( modlist );
 626                                 }
 627                                 if ( rc_efree && entry ) {
 628                                         entry_free( entry );
 629                                 }
 630                                 entry = NULL;
 631                                 break;
 632
 633                         case LDAP_RES_SEARCH_REFERENCE:
 634                                 Debug( LDAP_DEBUG_ANY,
 635                                         "do_syncrep2: reference received error\n", 0, 0, 0 );
 636                                 break;
 637
 638                         case LDAP_RES_SEARCH_RESULT:
 639                                 Debug( LDAP_DEBUG_SYNC,
 640                                         "do_syncrep2: LDAP_RES_SEARCH_RESULT\n", 0, 0, 0 );
 641                                 ldap_parse_result( si->si_ld, msg, &err, NULL, NULL, NULL,
 642                                         &rctrls, 0 );
 643                                 if ( rctrls ) {
 644                                         rctrlp = *rctrls;
 645                                         ber_init2( ber, &rctrlp->ldctl_value, LBER_USE_DER );
 646
 647                                         ber_scanf( ber, "{" /*"}"*/);
 648                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE ) {
 649                                                 ber_scanf( ber, "m", &cookie );
 650                                                 if ( !BER_BVISNULL( &cookie ) ) {
 651                                                         struct berval tmp_bv;
 652                                                         ber_dupbv( &tmp_bv, &cookie );
 653                                                         ber_bvarray_add( &syncCookie.octet_str, &tmp_bv);
 654                                                 }
 655                                                 if ( syncCookie.octet_str &&
 656                                                         !BER_BVISNULL( &syncCookie.octet_str[0] ) )
 657                                                 {
 658                                                         slap_parse_sync_cookie( &syncCookie );
 659                                                 }
 660                                         }
 661                                         if ( ber_peek_tag( ber, &len ) == LDAP_TAG_REFRESHDELETES )
 662                                         {
 663                                                 ber_scanf( ber, "b", &refreshDeletes );
 664                                         }
 665                                         ber_scanf( ber, /*"{"*/ "}" );
 666                                 }
 667                                 if ( syncCookie_req.ctxcsn == NULL ) {
 668                                         match = -1;
 669                                 } else if ( syncCookie.ctxcsn == NULL ) {
 670                                         match = 1;
 671                                 } else {
 672                                         value_match( &match, slap_schema.si_ad_entryCSN,
 673                                                 slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 674                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 675                                                 &syncCookie_req.ctxcsn[0], &syncCookie.ctxcsn[0],
 676                                                 &text );
 677                                 }
 678                                 if ( syncCookie.octet_str && !BER_BVISNULL( syncCookie.octet_str ) &&
 679                                         match < 0 && err == LDAP_SUCCESS )
 680                                 {
 681                                         syncrepl_updateCookie( si, op, psub, &syncCookie );
 682                                 }
 683                                 if ( rctrls ) {
 684                                         ldap_controls_free( rctrls );
 685                                 }
 686                                 if (si->si_type != LDAP_SYNC_REFRESH_AND_PERSIST) {
 687                                         /* FIXME : different error behaviors according to
 688                                          *      1) err code : LDAP_BUSY ...
 689                                          *      2) on err policy : stop service, stop sync, retry
 690                                          */
 691                                         if ( refreshDeletes == 0 && match < 0 &&
 692                                                 err == LDAP_SUCCESS )
 693                                         {
 694                                                 syncrepl_del_nonpresent( op, si );
 695                                         } else {
 696                                                 avl_free( si->si_presentlist, avl_ber_bvfree );
 697                                                 si->si_presentlist = NULL;
 698                                         }
 699                                 }
 700                                 rc = -2;
 701                                 goto done;
 702                                 break;
 703
 704                         case LDAP_RES_INTERMEDIATE:
 705                                 rc = ldap_parse_intermediate( si->si_ld, msg,
 706                                         &retoid, &retdata, NULL, 0 );
 707                                 if ( !rc && !strcmp( retoid, LDAP_SYNC_INFO ) ) {
 708                                         ber_init2( ber, retdata, LBER_USE_DER );
 709
 710                                         switch ( si_tag = ber_peek_tag( ber, &len )) {
 711                                         ber_tag_t tag;
 712                                         case LDAP_TAG_SYNC_NEW_COOKIE:
 713                                                 Debug( LDAP_DEBUG_SYNC,
 714                                                         "do_syncrep2: %s - %s%s\n",
 715                                                         "LDAP_RES_INTERMEDIATE",
 716                                                         "NEW_COOKIE", "\n" );
 717                                                 ber_scanf( ber, "tm", &tag, &cookie );
 718                                                 break;
 719                                         case LDAP_TAG_SYNC_REFRESH_DELETE:
 720                                                 Debug( LDAP_DEBUG_SYNC,
 721                                                         "do_syncrep2: %s - %s%s\n",
 722                                                         "LDAP_RES_INTERMEDIATE",
 723                                                         "REFRESH_DELETE\n", "\n" );
 724                                                 si->si_refreshDelete = 1;
 725                                         case LDAP_TAG_SYNC_REFRESH_PRESENT:
 726                                                 Debug( LDAP_DEBUG_SYNC,
 727                                                         "do_syncrep2: %s - %s%s\n",
 728                                                         "LDAP_RES_INTERMEDIATE",
 729                                                         si_tag == LDAP_TAG_SYNC_REFRESH_PRESENT ?
 730                                                         "REFRESH_PRESENT" : "REFRESH_DELETE",
 731                                                         "\n" );
 732                                                 si->si_refreshDelete = 1;
 733                                                 si->si_refreshPresent = 1;
 734                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 735                                                 if ( ber_peek_tag( ber, &len ) == LDAP_TAG_SYNC_COOKIE )
 736                                                 {
 737                                                         ber_scanf( ber, "m", &cookie );
 738                                                         if ( !BER_BVISNULL( &cookie ) ) {
 739                                                                 struct berval tmp_bv;
 740                                                                 ber_dupbv( &tmp_bv, &cookie );
 741                                                                 ber_bvarray_add( &syncCookie.octet_str,
 742                                                                         &tmp_bv);
 743                                                         }
 744                                                         if ( syncCookie.octet_str &&
 745                                                                 !BER_BVISNULL( &syncCookie.octet_str[0] ) )
 746                                                         {
 747                                                                 slap_parse_sync_cookie( &syncCookie );
 748                                                         }
 749                                                 }
 750                                                 if ( ber_peek_tag( ber, &len ) ==
 751                                                         LDAP_TAG_REFRESHDONE )
 752                                                 {
 753                                                         ber_scanf( ber, "b", &refreshDone );
 754                                                 }
 755                                                 ber_scanf( ber, /*"{"*/ "}" );
 756                                                 break;
 757                                         case LDAP_TAG_SYNC_ID_SET:
 758                                                 Debug( LDAP_DEBUG_SYNC,
 759                                                         "do_syncrep2: %s - %s%s\n",
 760                                                         "LDAP_RES_INTERMEDIATE",
 761                                                         "SYNC_ID_SET",
 762                                                         "\n" );
 763                                                 ber_scanf( ber, "t{" /*"}"*/, &tag );
 764                                                 if ( ber_peek_tag( ber, &len ) ==
 765                                                         LDAP_TAG_SYNC_COOKIE )
 766                                                 {
 767                                                         ber_scanf( ber, "m", &cookie );
 768                                                         if ( !BER_BVISNULL( &cookie ) ) {
 769                                                                 struct berval tmp_bv;
 770                                                                 ber_dupbv( &tmp_bv, &cookie );
 771                                                                 ber_bvarray_add( &syncCookie.octet_str,
 772                                                                         &tmp_bv );
 773                                                         }
 774                                                         if ( syncCookie.octet_str &&
 775                                                                         !BER_BVISNULL( &syncCookie.octet_str[0] ) )
 776                                                         {
 777                                                                 slap_parse_sync_cookie( &syncCookie );
 778                                                         }
 779                                                 }
 780                                                 if ( ber_peek_tag( ber, &len ) ==
 781                                                         LDAP_TAG_REFRESHDELETES )
 782                                                 {
 783                                                         ber_scanf( ber, "b", &refreshDeletes );
 784                                                 }
 785                                                 ber_scanf( ber, "[W]", &syncUUIDs );
 786                                                 ber_scanf( ber, /*"{"*/ "}" );
 787                                                 for ( i = 0; !BER_BVISNULL( &syncUUIDs[i] ); i++ ) {
 788                                                         struct berval *syncuuid_bv;
 789                                                         syncuuid_bv = ber_dupbv( NULL, &syncUUIDs[i] );
 790                                                         slap_sl_free( syncUUIDs[i].bv_val,op->o_tmpmemctx );
 791                                                         avl_insert( &si->si_presentlist,
 792                                                                 (caddr_t) syncuuid_bv,
 793                                                                 syncuuid_cmp, avl_dup_error );
 794                                                 }
 795                                                 slap_sl_free( syncUUIDs, op->o_tmpmemctx );
 796                                                 break;
 797                                         default:
 798                                                 Debug( LDAP_DEBUG_ANY,
 799                                                         "do_syncrep2 : unknown syncinfo tag (%ld)\n",
 800                                                 (long) si_tag, 0, 0 );
 801                                                 ldap_memfree( retoid );
 802                                                 ber_bvfree( retdata );
 803                                                 continue;
 804                                         }
 805
 806                                         if ( syncCookie_req.ctxcsn == NULL ) {
 807                                                 match = -1;
 808                                         } else if ( syncCookie.ctxcsn == NULL ) {
 809                                                 match = 1;
 810                                         } else {
 811                                                 value_match( &match, slap_schema.si_ad_entryCSN,
 812                                                         slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
 813                                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 814                                                         &syncCookie_req.ctxcsn[0],
 815                                                         &syncCookie.ctxcsn[0], &text );
 816                                         }
 817
 818                                         if ( syncCookie.ctxcsn && !BER_BVISNULL( &syncCookie.ctxcsn[0] ) &&
 819                                                 match < 0 )
 820                                         {
 821                                                 syncrepl_updateCookie( si, op, psub, &syncCookie);
 822                                         }
 823
 824                                         if ( si->si_refreshPresent == 1 ) {
 825                                                 if ( match < 0 ) {
 826                                                         syncrepl_del_nonpresent( op, si );
 827                                                 }
 828                                         }
 829
 830                                         ldap_memfree( retoid );
 831                                         ber_bvfree( retdata );
 832                                         break;
 833
 834                                 } else {
 835                                         Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
 836                                                 "unknown intermediate response (%d)\n",
 837                                                 rc, 0, 0 );
 838                                         ldap_memfree( retoid );
 839                                         ber_bvfree( retdata );
 840                                         break;
 841                                 }
 842                                 break;
 843
 844                         default:
 845                                 Debug( LDAP_DEBUG_ANY, "do_syncrep2 : "
 846                                         "unknown message\n", 0, 0, 0 );
 847                                 break;
 848
 849                         }
 850                         if ( syncCookie.octet_str ) {
 851                                 slap_sync_cookie_free( &syncCookie_req, 0 );
 852                                 slap_dup_sync_cookie( &syncCookie_req, &syncCookie );
 853                                 slap_sync_cookie_free( &syncCookie, 0 );
 854                         }
 855                 }
 856                 ldap_msgfree( res );
 857                 res = NULL;
 858         }
 859
 860         if ( rc == -1 ) {
 861                 const char *errstr;
 862
 863                 ldap_get_option( si->si_ld, LDAP_OPT_ERROR_NUMBER, &rc );
 864                 errstr = ldap_err2string( rc );
 865
 866                 Debug( LDAP_DEBUG_ANY,
 867                         "do_syncrep2 : %s\n", errstr, 0, 0 );
 868         }
 869
 870 done:
 871         slap_sync_cookie_free( &syncCookie, 0 );
 872         slap_sync_cookie_free( &syncCookie_req, 0 );
 873
 874         if ( res ) ldap_msgfree( res );
 875
 876         if ( rc && si->si_ld ) {
 877                 ldap_unbind( si->si_ld );
 878                 si->si_ld = NULL;
 879         }
 880
 881         return rc;
 882 }
 883
 884 void *
 885 do_syncrepl(
 886         void    *ctx,
 887         void    *arg )
 888 {
 889         struct re_s* rtask = arg;
 890         syncinfo_t *si = ( syncinfo_t * ) rtask->arg;
 891         Connection conn = {0};
 892         char opbuf[OPERATION_BUFFER_SIZE];
 893         Operation *op;
 894         int rc = LDAP_SUCCESS;
 895         int first = 0;
 896         int dostop = 0;
 897         ber_socket_t s;
 898         int i, defer = 1;
 899         Backend *be;
 900
 901         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl\n", 0, 0, 0 );
 902
 903         if ( si == NULL )
 904                 return NULL;
 905
 906         switch( abs( si->si_type )) {
 907         case LDAP_SYNC_REFRESH_ONLY:
 908         case LDAP_SYNC_REFRESH_AND_PERSIST:
 909                 break;
 910         default:
 911                 return NULL;
 912         }
 913
 914         if ( slapd_shutdown && si->si_ld ) {
 915                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 916                 connection_client_stop( s );
 917                 ldap_unbind( si->si_ld );
 918                 si->si_ld = NULL;
 919                 return NULL;
 920         }
 921
 922         op = (Operation *)opbuf;
 923         connection_fake_init( &conn, op, ctx );
 924
 925         /* use global malloc for now */
 926         op->o_tmpmemctx = NULL;
 927         op->o_tmpmfuncs = &ch_mfuncs;
 928
 929         op->o_dn = si->si_updatedn;
 930         op->o_ndn = si->si_updatedn;
 931         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
 932         op->o_bd = be = si->si_be;
 933
 934         /* Establish session, do search */
 935         if ( !si->si_ld ) {
 936                 first = 1;
 937                 si->si_refreshDelete = 0;
 938                 si->si_refreshPresent = 0;
 939                 rc = do_syncrep1( op, si );
 940         }
 941
 942         /* Process results */
 943         if ( rc == LDAP_SUCCESS ) {
 944                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 945
 946                 rc = do_syncrep2( op, si );
 947
 948                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 949                         /* If we succeeded, enable the connection for further listening.
 950                          * If we failed, tear down the connection and reschedule.
 951                          */
 952                         if ( rc == LDAP_SUCCESS ) {
 953                                 if ( first ) {
 954                                         rc = connection_client_setup( s, do_syncrepl, arg );
 955                                 } else {
 956                                         connection_client_enable( s );
 957                                 }
 958                         } else if ( !first ) {
 959                                 dostop = 1;
 960                         }
 961                 } else {
 962                         if ( rc == -2 ) rc = 0;
 963                 }
 964         }
 965
 966         /* At this point, we have 4 cases:
 967          * 1) for any hard failure, give up and remove this task
 968          * 2) for ServerDown, reschedule this task to run
 969          * 3) for Refresh and Success, reschedule to run
 970          * 4) for Persist and Success, reschedule to defer
 971          */
 972         ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
 973
 974         if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
 975                 ldap_pvt_runqueue_stoptask( &syncrepl_rq, rtask );
 976         }
 977
 978         if ( dostop ) {
 979                 connection_client_stop( s );
 980         }
 981
 982         if ( rc == LDAP_SUCCESS ) {
 983                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
 984                         defer = 0;
 985                 }
 986                 rtask->interval.tv_sec = si->si_interval;
 987                 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, defer );
 988                 if ( si->si_retrynum ) {
 989                         for ( i = 0; si->si_retrynum_init[i] != -2; i++ ) {
 990                                 si->si_retrynum[i] = si->si_retrynum_init[i];
 991                         }
 992                         si->si_retrynum[i] = -2;
 993                 }
 994         } else {
 995                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
 996                         if ( si->si_retrynum[i] == -1  || si->si_retrynum[i] == -2 )
 997                                 break;
 998                 }
 999
1000                 if ( !si->si_retrynum || si->si_retrynum[i] == -2 ) {
1001                         ldap_pvt_runqueue_remove( &syncrepl_rq, rtask );
1002                         LDAP_STAILQ_REMOVE( &be->be_syncinfo, si, syncinfo_s, si_next );
1003                         syncinfo_free( si );
1004                 } else if ( si->si_retrynum[i] >= -1 ) {
1005                         if ( si->si_retrynum[i] > 0 )
1006                                 si->si_retrynum[i]--;
1007                         rtask->interval.tv_sec = si->si_retryinterval[i];
1008                         ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
1009                         slap_wake_listener();
1010                 }
1011         }
1012
1013         ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1014
1015         return NULL;
1016 }
1017
1018 int
1019 syncrepl_message_to_entry(
1020         syncinfo_t      *si,
1021         Operation       *op,
1022         LDAPMessage     *msg,
1023         Modifications   **modlist,
1024         Entry                   **entry,
1025         int             syncstate
1026 )
1027 {
1028         Entry           *e = NULL;
1029         BerElement      *ber = NULL;
1030         Modifications   tmp;
1031         Modifications   *mod;
1032         Modifications   **modtail = modlist;
1033
1034         const char      *text;
1035         char txtbuf[SLAP_TEXT_BUFLEN];
1036         size_t textlen = sizeof txtbuf;
1037
1038         struct berval   bdn = {0, NULL}, dn, ndn;
1039         int             rc;
1040
1041         *modlist = NULL;
1042
1043         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1044                 Debug( LDAP_DEBUG_ANY,
1045                         "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
1046                 return -1;
1047         }
1048
1049         op->o_tag = LDAP_REQ_ADD;
1050
1051         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1052
1053         if ( rc != LDAP_SUCCESS ) {
1054                 Debug( LDAP_DEBUG_ANY,
1055                         "syncrepl_message_to_entry : dn get failed (%d)", rc, 0, 0 );
1056                 return rc;
1057         }
1058
1059         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1060         ber_dupbv( &op->o_req_dn, &dn );
1061         ber_dupbv( &op->o_req_ndn, &ndn );
1062         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1063         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1064
1065         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1066                 if ( entry )
1067                         *entry = NULL;
1068                 return LDAP_SUCCESS;
1069         }
1070
1071         if ( entry == NULL ) {
1072                 return -1;
1073         }
1074
1075         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ) );
1076         *entry = e;
1077         e->e_name = op->o_req_dn;
1078         e->e_nname = op->o_req_ndn;
1079
1080         while ( ber_remaining( ber ) ) {
1081                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1082                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1083                 {
1084                         break;
1085                 }
1086
1087                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ));
1088
1089                 mod->sml_op = LDAP_MOD_REPLACE;
1090                 mod->sml_next = NULL;
1091                 mod->sml_desc = NULL;
1092                 mod->sml_type = tmp.sml_type;
1093                 mod->sml_values = tmp.sml_values;
1094                 mod->sml_nvalues = NULL;
1095
1096                 *modtail = mod;
1097                 modtail = &mod->sml_next;
1098         }
1099
1100         if ( *modlist == NULL ) {
1101                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: no attributes\n",
1102                         0, 0, 0 );
1103                 rc = -1;
1104                 goto done;
1105         }
1106
1107         rc = slap_mods_check( *modlist, 1, &text, txtbuf, textlen, NULL );
1108
1109         if ( rc != LDAP_SUCCESS ) {
1110                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods check (%s)\n",
1111                         text, 0, 0 );
1112                 goto done;
1113         }
1114
1115         /* Strip out dynamically generated attrs */
1116         for ( modtail = modlist; *modtail ; ) {
1117                 mod = *modtail;
1118                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1119                         *modtail = mod->sml_next;
1120                         slap_mod_free( &mod->sml_mod, 0 );
1121                         ch_free( mod );
1122                 } else {
1123                         modtail = &mod->sml_next;
1124                 }
1125         }
1126
1127         /* Strip out attrs in exattrs list */
1128         for ( modtail = modlist; *modtail ; ) {
1129                 mod = *modtail;
1130                 if ( ldap_charray_inlist( si->si_exattrs,
1131                                         mod->sml_desc->ad_type->sat_cname.bv_val )) {
1132                         *modtail = mod->sml_next;
1133                         slap_mod_free( &mod->sml_mod, 0 );
1134                         ch_free( mod );
1135                 } else {
1136                         modtail = &mod->sml_next;
1137                 }
1138         }
1139
1140         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1141         if( rc != LDAP_SUCCESS ) {
1142                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods2entry (%s)\n",
1143                         text, 0, 0 );
1144         }
1145
1146 done:
1147         ber_free ( ber, 0 );
1148         if ( rc != LDAP_SUCCESS ) {
1149                 if ( e ) {
1150                         entry_free( e );
1151                         *entry = e = NULL;
1152                 }
1153         }
1154
1155         return rc;
1156 }
1157
1158 int
1159 syncrepl_entry(
1160         syncinfo_t* si,
1161         Operation *op,
1162         Entry* entry,
1163         Modifications* modlist,
1164         int syncstate,
1165         struct berval* syncUUID,
1166         struct sync_cookie* syncCookie_req,
1167         struct berval* syncCSN )
1168 {
1169         Backend *be = op->o_bd;
1170         slap_callback   cb = { NULL };
1171         struct berval   *syncuuid_bv = NULL;
1172         struct berval   syncUUID_strrep = BER_BVNULL;
1173         struct berval   uuid_bv = BER_BVNULL;
1174
1175         SlapReply       rs_search = {REP_RESULT};
1176         SlapReply       rs_delete = {REP_RESULT};
1177         SlapReply       rs_add = {REP_RESULT};
1178         SlapReply       rs_modify = {REP_RESULT};
1179         Filter f = {0};
1180         AttributeAssertion ava = {0};
1181         int rc = LDAP_SUCCESS;
1182         int ret = LDAP_SUCCESS;
1183
1184         struct berval pdn = BER_BVNULL;
1185         struct berval org_req_dn = BER_BVNULL;
1186         struct berval org_req_ndn = BER_BVNULL;
1187         struct berval org_dn = BER_BVNULL;
1188         struct berval org_ndn = BER_BVNULL;
1189         int     org_managedsait;
1190
1191         switch( syncstate ) {
1192         case LDAP_SYNC_PRESENT:
1193                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1194                                         "syncrepl_entry",
1195                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_PRESENT)", 0 );
1196                 break;
1197         case LDAP_SYNC_ADD:
1198                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1199                                         "syncrepl_entry",
1200                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_ADD)", 0 );
1201                 break;
1202         case LDAP_SYNC_DELETE:
1203                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1204                                         "syncrepl_entry",
1205                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_DELETE)", 0 );
1206                 break;
1207         case LDAP_SYNC_MODIFY:
1208                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1209                                         "syncrepl_entry",
1210                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_MODIFY)", 0 );
1211                 break;
1212         default:
1213                 Debug( LDAP_DEBUG_ANY, "%s: %s\n",
1214                                         "syncrepl_entry",
1215                                         "LDAP_RES_SEARCH_ENTRY(UNKNOWN syncstate)", 0 );
1216         }
1217
1218         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD )) {
1219                 if ( !si->si_refreshPresent ) {
1220                         syncuuid_bv = ber_dupbv( NULL, syncUUID );
1221                         avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1222                                 syncuuid_cmp, avl_dup_error );
1223                 }
1224         }
1225
1226         if ( syncstate == LDAP_SYNC_PRESENT ) {
1227                 return 0;
1228         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1229                 if ( entry == NULL ) {
1230                         return 0;
1231                 }
1232         }
1233
1234         f.f_choice = LDAP_FILTER_EQUALITY;
1235         f.f_ava = &ava;
1236         ava.aa_desc = slap_schema.si_ad_entryUUID;
1237         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1238         ava.aa_value = *syncUUID;
1239         op->ors_filter = &f;
1240
1241         op->ors_filterstr.bv_len = STRLENOF( "entryUUID=" ) + syncUUID->bv_len;
1242         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
1243                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1244         AC_MEMCPY( op->ors_filterstr.bv_val, "entryUUID=", STRLENOF( "entryUUID=" ) );
1245         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "entryUUID=" )],
1246                 syncUUID->bv_val, syncUUID->bv_len );
1247         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1248
1249         op->o_tag = LDAP_REQ_SEARCH;
1250         op->ors_scope = LDAP_SCOPE_SUBTREE;
1251
1252         /* get syncrepl cookie of shadow replica from subentry */
1253         op->o_req_dn = si->si_base;
1254         op->o_req_ndn = si->si_base;
1255
1256         op->o_time = slap_get_time();
1257         op->ors_tlimit = SLAP_NO_LIMIT;
1258         op->ors_slimit = 1;
1259
1260         op->ors_attrs = slap_anlist_no_attrs;
1261         op->ors_attrsonly = 1;
1262
1263         /* set callback function */
1264         op->o_callback = &cb;
1265         cb.sc_response = dn_callback;
1266         cb.sc_private = si;
1267
1268         BER_BVZERO( &si->si_syncUUID_ndn );
1269
1270         if ( limits_check( op, &rs_search ) == 0 ) {
1271                 rc = be->be_search( op, &rs_search );
1272                 Debug( LDAP_DEBUG_SYNC,
1273                                 "syncrepl_entry: %s (%d)\n",
1274                                 "be_search", rc, 0 );
1275         }
1276
1277         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
1278                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1279         }
1280
1281         cb.sc_response = null_callback;
1282         cb.sc_private = si;
1283
1284         if ( entry && entry->e_name.bv_val ) {
1285                 Debug( LDAP_DEBUG_SYNC,
1286                                 "syncrepl_entry: %s\n",
1287                                 entry->e_name.bv_val, 0, 0 );
1288         } else {
1289                 Debug( LDAP_DEBUG_SYNC,
1290                                 "syncrepl_entry: %s\n",
1291                                 si->si_syncUUID_ndn.bv_val, 0, 0 );
1292         }
1293
1294         if ( rs_search.sr_err == LDAP_SUCCESS &&
1295                  !BER_BVISNULL( &si->si_syncUUID_ndn ))
1296         {
1297 #if 0   /* DELETE ME -- and fix this to do realy Modifies */
1298                 char *subseq_ptr;
1299
1300                 if ( syncstate != LDAP_SYNC_DELETE ) {
1301                         op->o_no_psearch = 1;
1302                 }
1303
1304                 ber_dupbv( &op->o_sync_csn, syncCookie_req->ctxcsn );
1305                 if ( !BER_BVISNULL( &op->o_sync_csn ) ) {
1306                         subseq_ptr = strstr( op->o_sync_csn.bv_val, "#0000" );
1307                         subseq_ptr += 4;
1308                         *subseq_ptr = '1';
1309                 }
1310 #endif
1311
1312                 op->o_req_dn = si->si_syncUUID_ndn;
1313                 op->o_req_ndn = si->si_syncUUID_ndn;
1314                 op->o_tag = LDAP_REQ_DELETE;
1315                 rc = be->be_delete( op, &rs_delete );
1316                 Debug( LDAP_DEBUG_SYNC,
1317                                 "syncrepl_entry: %s (%d)\n",
1318                                 "be_delete", rc, 0 );
1319
1320                 org_req_dn = op->o_req_dn;
1321                 org_req_ndn = op->o_req_ndn;
1322                 org_dn = op->o_dn;
1323                 org_ndn = op->o_ndn;
1324                 org_managedsait = get_manageDSAit( op );
1325                 op->o_dn = op->o_bd->be_rootdn;
1326                 op->o_ndn = op->o_bd->be_rootndn;
1327                 op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1328
1329                 while ( rs_delete.sr_err == LDAP_SUCCESS && op->o_delete_glue_parent ) {
1330                         op->o_delete_glue_parent = 0;
1331                         if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
1332                                 slap_callback cb = { NULL };
1333                                 cb.sc_response = slap_null_cb;
1334                                 dnParent( &op->o_req_ndn, &pdn );
1335                                 op->o_req_dn = pdn;
1336                                 op->o_req_ndn = pdn;
1337                                 op->o_callback = &cb;
1338                                 op->o_bd->be_delete( op, &rs_delete );
1339                         } else {
1340                                 break;
1341                     }
1342                 }
1343
1344                 op->o_managedsait = org_managedsait;
1345                 op->o_dn = org_dn;
1346                 op->o_ndn = org_ndn;
1347                 op->o_req_dn = org_req_dn;
1348                 op->o_req_ndn = org_req_ndn;
1349                 op->o_delete_glue_parent = 0;
1350         }
1351
1352         switch ( syncstate ) {
1353         case LDAP_SYNC_ADD:
1354         case LDAP_SYNC_MODIFY:
1355                 if ( rs_search.sr_err == LDAP_SUCCESS ||
1356                          rs_search.sr_err == LDAP_REFERRAL ||
1357                          rs_search.sr_err == LDAP_NO_SUCH_OBJECT ||
1358                          rs_search.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF )
1359                 {
1360                         attr_delete( &entry->e_attrs, slap_schema.si_ad_entryUUID );
1361                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1362                                 &syncUUID_strrep, syncUUID );
1363
1364                         op->o_tag = LDAP_REQ_ADD;
1365                         op->ora_e = entry;
1366                         op->o_req_dn = entry->e_name;
1367                         op->o_req_ndn = entry->e_nname;
1368
1369                         rc = be->be_add( op, &rs_add );
1370                         Debug( LDAP_DEBUG_SYNC,
1371                                         "syncrepl_entry: %s (%d)\n",
1372                                         "be_add", rc, 0 );
1373
1374                         if ( rs_add.sr_err != LDAP_SUCCESS ) {
1375                                 if ( rs_add.sr_err == LDAP_ALREADY_EXISTS &&
1376                                          rs_search.sr_err != LDAP_NO_SUCH_OBJECT ) {
1377                                         Modifications *mod;
1378                                         Modifications *modtail = modlist;
1379
1380                                         assert( modlist );
1381
1382                                         for ( mod = modlist; mod != NULL; mod = mod->sml_next ) {
1383                                                 modtail = mod;
1384                                         }
1385
1386                                         mod = (Modifications *)ch_calloc(1, sizeof(Modifications));
1387                                         ber_dupbv( &uuid_bv, syncUUID );
1388                                         mod->sml_op = LDAP_MOD_REPLACE;
1389                                         mod->sml_desc = slap_schema.si_ad_entryUUID;
1390                                         mod->sml_type = mod->sml_desc->ad_cname;
1391                                         ber_bvarray_add( &mod->sml_values, &uuid_bv );
1392                                         modtail->sml_next = mod;
1393
1394                                         op->o_tag = LDAP_REQ_MODIFY;
1395                                         op->orm_modlist = modlist;
1396                                         op->o_req_dn = entry->e_name;
1397                                         op->o_req_ndn = entry->e_nname;
1398
1399                                         rc = be->be_modify( op, &rs_modify );
1400                                         Debug( LDAP_DEBUG_SYNC,
1401                                                         "syncrepl_entry: %s (%d)\n",
1402                                                         "be_modify", rc, 0 );
1403                                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
1404                                                 Debug( LDAP_DEBUG_ANY,
1405                                                         "syncrepl_entry : be_modify failed (%d)\n",
1406                                                         rs_modify.sr_err, 0, 0 );
1407                                         }
1408                                         ret = 1;
1409                                         goto done;
1410                                 } else if ( rs_modify.sr_err == LDAP_REFERRAL ||
1411                                                         rs_modify.sr_err == LDAP_NO_SUCH_OBJECT ) {
1412                                         syncrepl_add_glue( op, entry );
1413                                         ret = 0;
1414                                         goto done;
1415                                 } else {
1416                                         Debug( LDAP_DEBUG_ANY,
1417                                                 "syncrepl_entry : be_add failed (%d)\n",
1418                                                 rs_add.sr_err, 0, 0 );
1419                                         ret = 1;
1420                                         goto done;
1421                                 }
1422                         } else {
1423                                 be_entry_release_w( op, entry );
1424                                 ret = 0;
1425                                 goto done;
1426                         }
1427                 } else {
1428                         Debug( LDAP_DEBUG_ANY,
1429                                 "syncrepl_entry : be_search failed (%d)\n",
1430                                 rs_search.sr_err, 0, 0 );
1431                         ret = 1;
1432                         goto done;
1433                 }
1434
1435         case LDAP_SYNC_DELETE :
1436                 /* Already deleted */
1437                 ret = 0;
1438                 goto done;
1439
1440         default :
1441                 Debug( LDAP_DEBUG_ANY,
1442                         "syncrepl_entry : unknown syncstate\n", 0, 0, 0 );
1443                 ret = 1;
1444                 goto done;
1445         }
1446
1447 done :
1448         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
1449                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
1450                 BER_BVZERO( &syncUUID_strrep );
1451         }
1452         if ( !BER_BVISNULL( &si->si_syncUUID_ndn ) ) {
1453                 ch_free( si->si_syncUUID_ndn.bv_val );
1454                 BER_BVZERO( &si->si_syncUUID_ndn );
1455         }
1456         return ret;
1457 }
1458
1459 static struct berval gcbva[] = {
1460         BER_BVC("top"),
1461         BER_BVC("glue"),
1462         BER_BVNULL
1463 };
1464
1465 static void
1466 syncrepl_del_nonpresent(
1467         Operation *op,
1468         syncinfo_t *si )
1469 {
1470         Backend* be = op->o_bd;
1471         slap_callback   cb = { NULL };
1472         SlapReply       rs_search = {REP_RESULT};
1473         SlapReply       rs_delete = {REP_RESULT};
1474         SlapReply       rs_modify = {REP_RESULT};
1475         struct nonpresent_entry *np_list, *np_prev;
1476         int rc;
1477         Modifications *ml;
1478         Modifications *mlnext;
1479         Modifications *mod;
1480         Modifications *modlist = NULL;
1481         Modifications **modtail;
1482         AttributeName   an[2];
1483
1484         struct berval pdn = BER_BVNULL;
1485         struct berval org_req_dn = BER_BVNULL;
1486         struct berval org_req_ndn = BER_BVNULL;
1487         struct berval org_dn = BER_BVNULL;
1488         struct berval org_ndn = BER_BVNULL;
1489         int     org_managedsait;
1490
1491         op->o_req_dn = si->si_base;
1492         op->o_req_ndn = si->si_base;
1493
1494         cb.sc_response = nonpresent_callback;
1495         cb.sc_private = si;
1496
1497         op->o_callback = &cb;
1498         op->o_tag = LDAP_REQ_SEARCH;
1499         op->ors_scope = si->si_scope;
1500         op->ors_deref = LDAP_DEREF_NEVER;
1501         op->o_time = slap_get_time();
1502         op->ors_tlimit = SLAP_NO_LIMIT;
1503         op->ors_slimit = SLAP_NO_LIMIT;
1504
1505         memset( &an[0], 0, 2 * sizeof( AttributeName ) );
1506         an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
1507         an[0].an_desc = slap_schema.si_ad_entryUUID;
1508         op->ors_attrs = an;
1509
1510         op->ors_attrsonly = 0;
1511         op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
1512         op->ors_filterstr = si->si_filterstr;
1513
1514         op->o_nocaching = 1;
1515         op->o_managedsait = SLAP_CONTROL_NONE;
1516
1517         if ( limits_check( op, &rs_search ) == 0 ) {
1518                 rc = be->be_search( op, &rs_search );
1519         }
1520
1521         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1522         op->o_nocaching = 0;
1523
1524         if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
1525
1526         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
1527                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
1528                 while ( np_list != NULL ) {
1529                         LDAP_LIST_REMOVE( np_list, npe_link );
1530                         np_prev = np_list;
1531                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
1532                         op->o_tag = LDAP_REQ_DELETE;
1533                         op->o_callback = &cb;
1534                         cb.sc_response = null_callback;
1535                         cb.sc_private = si;
1536                         op->o_req_dn = *np_prev->npe_name;
1537                         op->o_req_ndn = *np_prev->npe_nname;
1538                         rc = op->o_bd->be_delete( op, &rs_delete );
1539
1540                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
1541                                 modtail = &modlist;
1542                                 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1543                                 mod->sml_op = LDAP_MOD_REPLACE;
1544                                 mod->sml_desc = slap_schema.si_ad_objectClass;
1545                                 mod->sml_type = mod->sml_desc->ad_cname;
1546                                 mod->sml_values = &gcbva[0];
1547                                 *modtail = mod;
1548                                 modtail = &mod->sml_next;
1549
1550                                 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1551                                 mod->sml_op = LDAP_MOD_REPLACE;
1552                                 mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
1553                                 mod->sml_type = mod->sml_desc->ad_cname;
1554                                 mod->sml_values = &gcbva[1];
1555                                 *modtail = mod;
1556                                 modtail = &mod->sml_next;
1557
1558                                 op->o_tag = LDAP_REQ_MODIFY;
1559                                 op->orm_modlist = modlist;
1560
1561                                 rc = be->be_modify( op, &rs_modify );
1562
1563                                 for ( ml = modlist; ml != NULL; ml = mlnext ) {
1564                                         mlnext = ml->sml_next;
1565                                         free( ml );
1566                                 }
1567                         }
1568
1569                         org_req_dn = op->o_req_dn;
1570                         org_req_ndn = op->o_req_ndn;
1571                         org_dn = op->o_dn;
1572                         org_ndn = op->o_ndn;
1573                         org_managedsait = get_manageDSAit( op );
1574                         op->o_dn = op->o_bd->be_rootdn;
1575                         op->o_ndn = op->o_bd->be_rootndn;
1576                         op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
1577
1578                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
1579                                         op->o_delete_glue_parent ) {
1580                                 op->o_delete_glue_parent = 0;
1581                                 if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
1582                                         slap_callback cb = { NULL };
1583                                         cb.sc_response = slap_null_cb;
1584                                         dnParent( &op->o_req_ndn, &pdn );
1585                                         op->o_req_dn = pdn;
1586                                         op->o_req_ndn = pdn;
1587                                         op->o_callback = &cb;
1588                                         /* give it a root privil ? */
1589                                         op->o_bd->be_delete( op, &rs_delete );
1590                                 } else {
1591                                         break;
1592                             }
1593                         }
1594
1595                         op->o_managedsait = org_managedsait;
1596                         op->o_dn = org_dn;
1597                         op->o_ndn = org_ndn;
1598                         op->o_req_dn = org_req_dn;
1599                         op->o_req_ndn = org_req_ndn;
1600                         op->o_delete_glue_parent = 0;
1601
1602                         ber_bvfree( np_prev->npe_name );
1603                         ber_bvfree( np_prev->npe_nname );
1604                         BER_BVZERO( &op->o_req_dn );
1605                         BER_BVZERO( &op->o_req_ndn );
1606                         ch_free( np_prev );
1607                 }
1608         }
1609
1610         return;
1611 }
1612
1613 void
1614 syncrepl_add_glue(
1615         Operation* op,
1616         Entry *e )
1617 {
1618         Backend *be = op->o_bd;
1619         slap_callback cb = { NULL };
1620         Attribute       *a;
1621         int     rc;
1622         int suffrdns;
1623         int i;
1624         struct berval dn = {0, NULL};
1625         struct berval ndn = {0, NULL};
1626         Entry   *glue;
1627         SlapReply       rs_add = {REP_RESULT};
1628         char    *ptr, *comma;
1629
1630         op->o_tag = LDAP_REQ_ADD;
1631         op->o_callback = &cb;
1632         cb.sc_response = null_callback;
1633         cb.sc_private = NULL;
1634
1635         dn = e->e_name;
1636         ndn = e->e_nname;
1637
1638         /* count RDNs in suffix */
1639         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
1640                 for ( i = 0, ptr = be->be_nsuffix[0].bv_val; ptr; ptr = strchr( ptr, ',' ) ) {
1641                         ptr++;
1642                         i++;
1643                 }
1644                 suffrdns = i;
1645         } else {
1646                 /* suffix is "" */
1647                 suffrdns = 0;
1648         }
1649
1650         /* Start with BE suffix */
1651         for ( i = 0, ptr = NULL; i < suffrdns; i++ ) {
1652                 comma = strrchr( dn.bv_val, ',' );
1653                 if ( ptr ) *ptr = ',';
1654                 if ( comma ) *comma = '\0';
1655                 ptr = comma;
1656         }
1657         if ( ptr ) {
1658                 *ptr++ = ',';
1659                 dn.bv_len -= ptr - dn.bv_val;
1660                 dn.bv_val = ptr;
1661         }
1662         /* the normalizedDNs are always the same length, no counting
1663          * required.
1664          */
1665         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
1666                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
1667                 ndn.bv_len = be->be_nsuffix[0].bv_len;
1668         }
1669
1670         while ( ndn.bv_val > e->e_nname.bv_val ) {
1671                 glue = (Entry *) ch_calloc( 1, sizeof(Entry) );
1672                 ber_dupbv( &glue->e_name, &dn );
1673                 ber_dupbv( &glue->e_nname, &ndn );
1674
1675                 a = ch_calloc( 1, sizeof( Attribute ));
1676                 a->a_desc = slap_schema.si_ad_objectClass;
1677
1678                 a->a_vals = ch_calloc( 3, sizeof( struct berval ));
1679                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
1680                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
1681                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
1682
1683                 a->a_nvals = a->a_vals;
1684
1685                 a->a_next = glue->e_attrs;
1686                 glue->e_attrs = a;
1687
1688                 a = ch_calloc( 1, sizeof( Attribute ));
1689                 a->a_desc = slap_schema.si_ad_structuralObjectClass;
1690
1691                 a->a_vals = ch_calloc( 2, sizeof( struct berval ));
1692                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
1693                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
1694
1695                 a->a_nvals = a->a_vals;
1696
1697                 a->a_next = glue->e_attrs;
1698                 glue->e_attrs = a;
1699
1700                 op->o_req_dn = glue->e_name;
1701                 op->o_req_ndn = glue->e_nname;
1702                 op->ora_e = glue;
1703                 rc = be->be_add ( op, &rs_add );
1704                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
1705                         be_entry_release_w( op, glue );
1706                 } else {
1707                 /* incl. ALREADY EXIST */
1708                         entry_free( glue );
1709                 }
1710
1711                 /* Move to next child */
1712                 for (ptr = dn.bv_val-2; ptr > e->e_name.bv_val && *ptr != ','; ptr--) {
1713                         /* empty */
1714                 }
1715                 if ( ptr == e->e_name.bv_val ) break;
1716                 dn.bv_val = ++ptr;
1717                 dn.bv_len = e->e_name.bv_len - (ptr-e->e_name.bv_val);
1718                 for( ptr = ndn.bv_val-2;
1719                         ptr > e->e_nname.bv_val && *ptr != ',';
1720                         ptr--)
1721                 {
1722                         /* empty */
1723                 }
1724                 ndn.bv_val = ++ptr;
1725                 ndn.bv_len = e->e_nname.bv_len - (ptr-e->e_nname.bv_val);
1726         }
1727
1728         op->o_req_dn = e->e_name;
1729         op->o_req_ndn = e->e_nname;
1730         op->ora_e = e;
1731         rc = be->be_add ( op, &rs_add );
1732         if ( rs_add.sr_err == LDAP_SUCCESS ) {
1733                 be_entry_release_w( op, e );
1734         } else {
1735                 entry_free( e );
1736         }
1737
1738         return;
1739 }
1740
1741 static struct berval ocbva[] = {
1742         BER_BVC("top"),
1743         BER_BVC("subentry"),
1744         BER_BVC("syncConsumerSubentry"),
1745         BER_BVNULL
1746 };
1747
1748 static struct berval cnbva[] = {
1749         BER_BVNULL,
1750         BER_BVNULL
1751 };
1752
1753 static struct berval ssbva[] = {
1754         BER_BVC("{}"),
1755         BER_BVNULL
1756 };
1757
1758 static struct berval scbva[] = {
1759         BER_BVNULL,
1760         BER_BVNULL
1761 };
1762
1763 void
1764 syncrepl_updateCookie(
1765         syncinfo_t *si,
1766         Operation *op,
1767         struct berval *pdn,
1768         struct sync_cookie *syncCookie )
1769 {
1770         Backend *be = op->o_bd;
1771         Modifications *ml;
1772         Modifications *mlnext;
1773         Modifications *mod;
1774         Modifications *modlist = NULL;
1775         Modifications **modtail = &modlist;
1776
1777         const char      *text;
1778         char txtbuf[SLAP_TEXT_BUFLEN];
1779         size_t textlen = sizeof txtbuf;
1780
1781         Entry* e = NULL;
1782         int rc;
1783
1784         char syncrepl_cbuf[sizeof(CN_STR SYNCREPL_STR)];
1785         struct berval slap_syncrepl_dn_bv = BER_BVNULL;
1786         struct berval slap_syncrepl_cn_bv = BER_BVNULL;
1787
1788         slap_callback cb = { NULL };
1789         SlapReply       rs_add = {REP_RESULT};
1790         SlapReply       rs_modify = {REP_RESULT};
1791
1792         slap_sync_cookie_free( &si->si_syncCookie, 0 );
1793         slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
1794
1795         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1796         mod->sml_op = LDAP_MOD_REPLACE;
1797         mod->sml_desc = slap_schema.si_ad_objectClass;
1798         mod->sml_type = mod->sml_desc->ad_cname;
1799         mod->sml_values = ocbva;
1800         *modtail = mod;
1801         modtail = &mod->sml_next;
1802
1803         ber_dupbv( &cnbva[0], (struct berval *) &slap_syncrepl_bvc );
1804         assert( si->si_rid < 1000 );
1805         cnbva[0].bv_len = snprintf( cnbva[0].bv_val,
1806                 slap_syncrepl_bvc.bv_len + 1,
1807                 "syncrepl%ld", si->si_rid );
1808         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1809         mod->sml_op = LDAP_MOD_REPLACE;
1810         mod->sml_desc = slap_schema.si_ad_cn;
1811         mod->sml_type = mod->sml_desc->ad_cname;
1812         mod->sml_values = cnbva;
1813         *modtail = mod;
1814         modtail = &mod->sml_next;
1815
1816         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1817         mod->sml_op = LDAP_MOD_REPLACE;
1818         mod->sml_desc = slap_schema.si_ad_subtreeSpecification;
1819         mod->sml_type = mod->sml_desc->ad_cname;
1820         mod->sml_values = ssbva;
1821         *modtail = mod;
1822         modtail = &mod->sml_next;
1823
1824         /* Keep this last, so we can avoid touching the previous
1825          * attributes unnecessarily.
1826          */
1827         if ( scbva[0].bv_val ) ch_free( scbva[0].bv_val );
1828         ber_dupbv( &scbva[0], &si->si_syncCookie.octet_str[0] );
1829         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1830         mod->sml_op = LDAP_MOD_REPLACE;
1831         mod->sml_desc = slap_schema.si_ad_syncreplCookie;
1832         mod->sml_type = mod->sml_desc->ad_cname;
1833         mod->sml_values = scbva;
1834         *modtail = mod;
1835         modtail = &mod->sml_next;
1836
1837         slap_queue_csn( op, si->si_syncCookie.ctxcsn );
1838
1839         mlnext = mod;
1840
1841         op->o_tag = LDAP_REQ_ADD;
1842         rc = slap_mods_opattrs( op, modlist, modtail,
1843                  &text, txtbuf, textlen, 0 );
1844
1845         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
1846                 ml->sml_op = LDAP_MOD_REPLACE;
1847         }
1848
1849         if( rc != LDAP_SUCCESS ) {
1850                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods opattrs (%s)\n",
1851                          text, 0, 0 );
1852         }
1853
1854         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
1855
1856         slap_syncrepl_cn_bv.bv_val = syncrepl_cbuf;
1857         assert( si->si_rid < 1000 );
1858         slap_syncrepl_cn_bv.bv_len = snprintf( slap_syncrepl_cn_bv.bv_val,
1859                 slap_syncrepl_cn_bvc.bv_len + 1,
1860                 "cn=syncrepl%ld", si->si_rid );
1861
1862         build_new_dn( &slap_syncrepl_dn_bv, pdn, &slap_syncrepl_cn_bv,
1863                 op->o_tmpmemctx );
1864         ber_dupbv( &e->e_name, &slap_syncrepl_dn_bv );
1865         ber_dupbv( &e->e_nname, &slap_syncrepl_dn_bv );
1866
1867         if ( !BER_BVISNULL( &slap_syncrepl_dn_bv ) ) {
1868                 slap_sl_free( slap_syncrepl_dn_bv.bv_val, op->o_tmpmemctx );
1869         }
1870
1871         e->e_attrs = NULL;
1872
1873         rc = slap_mods2entry( modlist, &e, 1, 1, &text, txtbuf, textlen );
1874
1875         if( rc != LDAP_SUCCESS ) {
1876                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods2entry (%s)\n",
1877                          text, 0, 0 );
1878         }
1879
1880         cb.sc_response = null_callback;
1881         cb.sc_private = si;
1882
1883         op->o_callback = &cb;
1884         op->o_req_dn = e->e_name;
1885         op->o_req_ndn = e->e_nname;
1886
1887         /* update persistent cookie */
1888 update_cookie_retry:
1889         op->o_tag = LDAP_REQ_MODIFY;
1890         /* Just modify the cookie value, not the entire entry */
1891         op->orm_modlist = mod;
1892         rc = be->be_modify( op, &rs_modify );
1893
1894         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
1895                 if ( rs_modify.sr_err == LDAP_REFERRAL ||
1896                          rs_modify.sr_err == LDAP_NO_SUCH_OBJECT ) {
1897                         op->o_tag = LDAP_REQ_ADD;
1898                         op->ora_e = e;
1899                         rc = be->be_add( op, &rs_add );
1900                         if ( rs_add.sr_err != LDAP_SUCCESS ) {
1901                                 if ( rs_add.sr_err == LDAP_ALREADY_EXISTS ) {
1902                                         goto update_cookie_retry;
1903                                 } else if ( rs_add.sr_err == LDAP_REFERRAL ||
1904                                                         rs_add.sr_err == LDAP_NO_SUCH_OBJECT ) {
1905                                         Debug( LDAP_DEBUG_ANY,
1906                                                 "cookie will be non-persistent\n",
1907                                                 0, 0, 0 );
1908                                 } else {
1909                                         Debug( LDAP_DEBUG_ANY,
1910                                                 "be_add failed (%d)\n", rs_add.sr_err, 0, 0 );
1911                                 }
1912                         } else {
1913                                 be_entry_release_w( op, e );
1914                                 goto done;
1915                         }
1916                 } else {
1917                         Debug( LDAP_DEBUG_ANY,
1918                                 "be_modify failed (%d)\n", rs_modify.sr_err, 0, 0 );
1919                 }
1920         }
1921         if ( e != NULL ) {
1922                 entry_free( e );
1923         }
1924
1925 done :
1926         slap_graduate_commit_csn( op );
1927
1928
1929         if ( !BER_BVISNULL( &cnbva[0] ) ) {
1930                 ch_free( cnbva[0].bv_val );
1931                 BER_BVZERO( &cnbva[0] );
1932         }
1933         if ( !BER_BVISNULL( &scbva[0] ) ) {
1934                 ch_free( scbva[0].bv_val );
1935                 BER_BVZERO( &scbva[0] );
1936         }
1937
1938         if ( mlnext->sml_next ) {
1939                 slap_mods_free( mlnext->sml_next );
1940                 mlnext->sml_next = NULL;
1941         }
1942
1943         for (ml = modlist ; ml != NULL; ml = mlnext ) {
1944                 mlnext = ml->sml_next;
1945                 free( ml );
1946         }
1947
1948         return;
1949 }
1950
1951 int
1952 syncrepl_isupdate( Operation *op )
1953 {
1954         return ( syncrepl_isupdate_dn( op->o_bd, &op->o_ndn ));
1955 }
1956
1957 int
1958 syncrepl_isupdate_dn(
1959         Backend*                be,
1960         struct berval*  ndn )
1961 {
1962         syncinfo_t*     si;
1963         int                     ret = 0;
1964
1965         if ( !LDAP_STAILQ_EMPTY( &be->be_syncinfo )) {
1966                 LDAP_STAILQ_FOREACH( si, &be->be_syncinfo, si_next ) {
1967                         if ( ( ret = dn_match( &si->si_updatedn, ndn ) ) ) {
1968                                 return ret;
1969                         }
1970                 }
1971         }
1972         return 0;
1973 }
1974
1975 static int
1976 dn_callback(
1977         Operation*      op,
1978         SlapReply*      rs )
1979 {
1980         syncinfo_t *si = op->o_callback->sc_private;
1981
1982         if ( rs->sr_type == REP_SEARCH ) {
1983                 if ( !BER_BVISNULL( &si->si_syncUUID_ndn ) ) {
1984                         Debug( LDAP_DEBUG_ANY,
1985                                 "dn_callback : consistency error - "
1986                                 "entryUUID is not unique\n", 0, 0, 0 );
1987                 } else {
1988                         ber_dupbv_x( &si->si_syncUUID_ndn, &rs->sr_entry->e_nname, NULL );
1989                 }
1990         } else if ( rs->sr_type == REP_RESULT ) {
1991                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
1992                         Debug( LDAP_DEBUG_ANY,
1993                                 "dn_callback : consistency error - "
1994                                 "entryUUID is not unique\n", 0, 0, 0 );
1995                 }
1996         }
1997
1998         return LDAP_SUCCESS;
1999 }
2000
2001 static int
2002 nonpresent_callback(
2003         Operation*      op,
2004         SlapReply*      rs )
2005 {
2006         syncinfo_t *si = op->o_callback->sc_private;
2007         Attribute *a;
2008         int count = 0;
2009         struct berval* present_uuid = NULL;
2010         struct nonpresent_entry *np_entry;
2011
2012         if ( rs->sr_type == REP_RESULT ) {
2013                 count = avl_free( si->si_presentlist, avl_ber_bvfree );
2014                 si->si_presentlist = NULL;
2015
2016         } else if ( rs->sr_type == REP_SEARCH ) {
2017                 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
2018
2019                 if ( a == NULL ) return 0;
2020
2021                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
2022                         syncuuid_cmp );
2023
2024                 if ( present_uuid == NULL ) {
2025                         np_entry = (struct nonpresent_entry *)
2026                                 ch_calloc( 1, sizeof( struct nonpresent_entry ));
2027                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
2028                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
2029                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
2030
2031                 } else {
2032                         avl_delete( &si->si_presentlist,
2033                                         &a->a_nvals[0], syncuuid_cmp );
2034                         ch_free( present_uuid->bv_val );
2035                         ch_free( present_uuid );
2036                 }
2037         }
2038         return LDAP_SUCCESS;
2039 }
2040
2041 static int
2042 null_callback(
2043         Operation*      op,
2044         SlapReply*      rs )
2045 {
2046         if ( rs->sr_err != LDAP_SUCCESS &&
2047                 rs->sr_err != LDAP_REFERRAL &&
2048                 rs->sr_err != LDAP_ALREADY_EXISTS &&
2049                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
2050                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
2051         {
2052                 Debug( LDAP_DEBUG_ANY,
2053                         "null_callback : error code 0x%x\n",
2054                         rs->sr_err, 0, 0 );
2055         }
2056         return LDAP_SUCCESS;
2057 }
2058
2059 Entry *
2060 slap_create_syncrepl_entry(
2061         Backend *be,
2062         struct berval *context_csn,
2063         struct berval *rdn,
2064         struct berval *cn )
2065 {
2066         Entry* e;
2067
2068         struct berval bv;
2069
2070         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
2071
2072         attr_merge( e, slap_schema.si_ad_objectClass, ocbva, NULL );
2073
2074         attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
2075                 &ocbva[1], NULL );
2076
2077         attr_merge_one( e, slap_schema.si_ad_cn, cn, NULL );
2078
2079         if ( context_csn ) {
2080                 attr_merge_one( e, slap_schema.si_ad_syncreplCookie,
2081                         context_csn, NULL );
2082         }
2083
2084         BER_BVSTR( &bv, "{}" );
2085         attr_merge_one( e, slap_schema.si_ad_subtreeSpecification, &bv, NULL );
2086
2087         build_new_dn( &e->e_name, &be->be_nsuffix[0], rdn, NULL );
2088         ber_dupbv( &e->e_nname, &e->e_name );
2089
2090         return e;
2091 }
2092
2093 struct berval *
2094 slap_uuidstr_from_normalized(
2095         struct berval* uuidstr,
2096         struct berval* normalized,
2097         void *ctx )
2098 {
2099         struct berval *new;
2100         unsigned char nibble;
2101         int i, d = 0;
2102
2103         if ( normalized == NULL ) return NULL;
2104         if ( normalized->bv_len != 16 ) return NULL;
2105
2106         if ( uuidstr ) {
2107                 new = uuidstr;
2108         } else {
2109                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
2110                 if ( new == NULL ) {
2111                         return NULL;
2112                 }
2113         }
2114
2115         new->bv_len = 36;
2116
2117         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
2118                 if ( new != uuidstr ) {
2119                         slap_sl_free( new, ctx );
2120                 }
2121                 return NULL;
2122         }
2123
2124         for ( i = 0; i < 16; i++ ) {
2125                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
2126                         new->bv_val[(i<<1)+d] = '-';
2127                         d += 1;
2128                 }
2129
2130                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
2131                 if ( nibble < 10 ) {
2132                         new->bv_val[(i<<1)+d] = nibble + '0';
2133                 } else {
2134                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
2135                 }
2136
2137                 nibble = (normalized->bv_val[i]) & 0xF;
2138                 if ( nibble < 10 ) {
2139                         new->bv_val[(i<<1)+d+1] = nibble + '0';
2140                 } else {
2141                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
2142                 }
2143         }
2144
2145         new->bv_val[new->bv_len] = '\0';
2146         return new;
2147 }
2148
2149 static int
2150 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
2151 {
2152         const struct berval *uuid1 = v_uuid1;
2153         const struct berval *uuid2 = v_uuid2;
2154         int rc = uuid1->bv_len - uuid2->bv_len;
2155         if ( rc ) return rc;
2156         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
2157 }
2158
2159 static void
2160 avl_ber_bvfree( void *v_bv )
2161 {
2162         struct berval   *bv = (struct berval *)v_bv;
2163
2164         if( v_bv == NULL ) return;
2165         if ( !BER_BVISNULL( bv ) ) {
2166                 ch_free( bv->bv_val );
2167         }
2168         ch_free( (char *) bv );
2169 }
2170
2171 void
2172 syncinfo_free( syncinfo_t *sie )
2173 {
2174         if ( sie->si_provideruri ) {
2175                 ch_free( sie->si_provideruri );
2176         }
2177         if ( sie->si_provideruri_bv ) {
2178                 ber_bvarray_free( sie->si_provideruri_bv );
2179         }
2180         if ( sie->si_updatedn.bv_val ) {
2181                 ch_free( sie->si_updatedn.bv_val );
2182         }
2183         if ( sie->si_binddn ) {
2184                 ch_free( sie->si_binddn );
2185         }
2186         if ( sie->si_passwd ) {
2187                 ch_free( sie->si_passwd );
2188         }
2189         if ( sie->si_saslmech ) {
2190                 ch_free( sie->si_saslmech );
2191         }
2192         if ( sie->si_secprops ) {
2193                 ch_free( sie->si_secprops );
2194         }
2195         if ( sie->si_realm ) {
2196                 ch_free( sie->si_realm );
2197         }
2198         if ( sie->si_authcId ) {
2199                 ch_free( sie->si_authcId );
2200         }
2201         if ( sie->si_authzId ) {
2202                 ch_free( sie->si_authzId );
2203         }
2204         if ( sie->si_filterstr.bv_val ) {
2205                 ch_free( sie->si_filterstr.bv_val );
2206         }
2207         if ( sie->si_base.bv_val ) {
2208                 ch_free( sie->si_base.bv_val );
2209         }
2210         if ( sie->si_attrs ) {
2211                 int i = 0;
2212                 while ( sie->si_attrs[i] != NULL ) {
2213                         ch_free( sie->si_attrs[i] );
2214                         i++;
2215                 }
2216                 ch_free( sie->si_attrs );
2217         }
2218         if ( sie->si_exattrs ) {
2219                 int i = 0;
2220                 while ( sie->si_exattrs[i] != NULL ) {
2221                         ch_free( sie->si_exattrs[i] );
2222                         i++;
2223                 }
2224                 ch_free( sie->si_exattrs );
2225         }
2226         if ( sie->si_anlist ) {
2227                 int i = 0;
2228                 while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
2229                         ch_free( sie->si_anlist[i].an_name.bv_val );
2230                         i++;
2231                 }
2232                 ch_free( sie->si_anlist );
2233         }
2234         if ( sie->si_exanlist ) {
2235                 int i = 0;
2236                 while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
2237                         ch_free( sie->si_exanlist[i].an_name.bv_val );
2238                         i++;
2239                 }
2240                 ch_free( sie->si_exanlist );
2241         }
2242         if ( sie->si_retryinterval ) {
2243                 ch_free( sie->si_retryinterval );
2244         }
2245         if ( sie->si_retrynum ) {
2246                 ch_free( sie->si_retrynum );
2247         }
2248         if ( sie->si_retrynum_init ) {
2249                 ch_free( sie->si_retrynum_init );
2250         }
2251         slap_sync_cookie_free( &sie->si_syncCookie, 0 );
2252         if ( sie->si_syncUUID_ndn.bv_val ) {
2253                 ch_free( sie->si_syncUUID_ndn.bv_val );
2254         }
2255         if ( sie->si_presentlist ) {
2256             avl_free( sie->si_presentlist, avl_ber_bvfree );
2257         }
2258         if ( sie->si_ld ) {
2259                 ldap_ld_free( sie->si_ld, 1, NULL, NULL );
2260         }
2261         while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist )) {
2262                 struct nonpresent_entry* npe;
2263                 npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
2264                 LDAP_LIST_REMOVE( npe, npe_link );
2265                 if ( npe->npe_name ) {
2266                         if ( npe->npe_name->bv_val ) {
2267                                 ch_free( npe->npe_name->bv_val );
2268                         }
2269                         ch_free( npe->npe_name );
2270                 }
2271                 if ( npe->npe_nname ) {
2272                         if ( npe->npe_nname->bv_val ) {
2273                                 ch_free( npe->npe_nname->bv_val );
2274                         }
2275                         ch_free( npe->npe_nname );
2276                 }
2277                 ch_free( npe );
2278         }
2279         ch_free( sie );
2280 }