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 );
 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         Operation op = {0};
 893         int rc = LDAP_SUCCESS;
 894         int first = 0;
 895         int dostop = 0;
 896         ber_socket_t s;
 897         int i, defer = 1;
 898         Backend *be;
 899
 900         Debug( LDAP_DEBUG_TRACE, "=>do_syncrepl\n", 0, 0, 0 );
 901
 902         if ( si == NULL )
 903                 return NULL;
 904
 905         switch( abs( si->si_type )) {
 906         case LDAP_SYNC_REFRESH_ONLY:
 907         case LDAP_SYNC_REFRESH_AND_PERSIST:
 908                 break;
 909         default:
 910                 return NULL;
 911         }
 912
 913         if ( slapd_shutdown && si->si_ld ) {
 914                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 915                 connection_client_stop( s );
 916                 ldap_unbind( si->si_ld );
 917                 si->si_ld = NULL;
 918                 return NULL;
 919         }
 920
 921         connection_fake_init( &conn, &op, ctx );
 922
 923         /* use global malloc for now */
 924         op.o_tmpmemctx = NULL;
 925         op.o_tmpmfuncs = &ch_mfuncs;
 926
 927         op.o_dn = si->si_updatedn;
 928         op.o_ndn = si->si_updatedn;
 929         op.o_managedsait = 1;
 930         op.o_bd = be = si->si_be;
 931
 932         op.o_sync_state.ctxcsn = NULL;
 933         op.o_sync_state.sid = -1;
 934         op.o_sync_state.octet_str = NULL;
 935         op.o_sync_slog_size = -1;
 936         LDAP_STAILQ_FIRST( &op.o_sync_slog_list ) = NULL;
 937         op.o_sync_slog_list.stqh_last = &LDAP_STAILQ_FIRST(&op.o_sync_slog_list);
 938
 939         /* Establish session, do search */
 940         if ( !si->si_ld ) {
 941                 first = 1;
 942                 si->si_refreshDelete = 0;
 943                 si->si_refreshPresent = 0;
 944                 rc = do_syncrep1( &op, si );
 945         }
 946
 947         /* Process results */
 948         if ( rc == LDAP_SUCCESS ) {
 949                 ldap_get_option( si->si_ld, LDAP_OPT_DESC, &s );
 950
 951                 rc = do_syncrep2( &op, si );
 952
 953                 if ( abs(si->si_type) == LDAP_SYNC_REFRESH_AND_PERSIST ) {
 954                         /* If we succeeded, enable the connection for further listening.
 955                          * If we failed, tear down the connection and reschedule.
 956                          */
 957                         if ( rc == LDAP_SUCCESS ) {
 958                                 if ( first ) {
 959                                         rc = connection_client_setup( s, do_syncrepl, arg );
 960                                 } else {
 961                                         connection_client_enable( s );
 962                                 }
 963                         } else if ( !first ) {
 964                                 dostop = 1;
 965                         }
 966                 } else {
 967                         if ( rc == -2 ) rc = 0;
 968                 }
 969         }
 970
 971         /* At this point, we have 4 cases:
 972          * 1) for any hard failure, give up and remove this task
 973          * 2) for ServerDown, reschedule this task to run
 974          * 3) for Refresh and Success, reschedule to run
 975          * 4) for Persist and Success, reschedule to defer
 976          */
 977         ldap_pvt_thread_mutex_lock( &syncrepl_rq.rq_mutex );
 978
 979         if ( ldap_pvt_runqueue_isrunning( &syncrepl_rq, rtask )) {
 980                 ldap_pvt_runqueue_stoptask( &syncrepl_rq, rtask );
 981         }
 982
 983         if ( dostop ) {
 984                 connection_client_stop( s );
 985         }
 986
 987         if ( rc == LDAP_SUCCESS ) {
 988                 if ( si->si_type == LDAP_SYNC_REFRESH_ONLY ) {
 989                         defer = 0;
 990                 }
 991                 rtask->interval.tv_sec = si->si_interval;
 992                 ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, defer );
 993                 if ( si->si_retrynum ) {
 994                         for ( i = 0; si->si_retrynum_init[i] != -2; i++ ) {
 995                                 si->si_retrynum[i] = si->si_retrynum_init[i];
 996                         }
 997                         si->si_retrynum[i] = -2;
 998                 }
 999         } else {
1000                 for ( i = 0; si->si_retrynum && si->si_retrynum[i] <= 0; i++ ) {
1001                         if ( si->si_retrynum[i] == -1  || si->si_retrynum[i] == -2 )
1002                                 break;
1003                 }
1004
1005                 if ( !si->si_retrynum || si->si_retrynum[i] == -2 ) {
1006                         ldap_pvt_runqueue_remove( &syncrepl_rq, rtask );
1007                         LDAP_STAILQ_REMOVE( &be->be_syncinfo, si, syncinfo_s, si_next );
1008                         syncinfo_free( si );
1009                 } else if ( si->si_retrynum[i] >= -1 ) {
1010                         if ( si->si_retrynum[i] > 0 )
1011                                 si->si_retrynum[i]--;
1012                         rtask->interval.tv_sec = si->si_retryinterval[i];
1013                         ldap_pvt_runqueue_resched( &syncrepl_rq, rtask, 0 );
1014                         slap_wake_listener();
1015                 }
1016         }
1017
1018         ldap_pvt_thread_mutex_unlock( &syncrepl_rq.rq_mutex );
1019
1020         return NULL;
1021 }
1022
1023 int
1024 syncrepl_message_to_entry(
1025         syncinfo_t      *si,
1026         Operation       *op,
1027         LDAPMessage     *msg,
1028         Modifications   **modlist,
1029         Entry                   **entry,
1030         int             syncstate
1031 )
1032 {
1033         Entry           *e = NULL;
1034         BerElement      *ber = NULL;
1035         Modifications   tmp;
1036         Modifications   *mod;
1037         Modifications   **modtail = modlist;
1038
1039         const char      *text;
1040         char txtbuf[SLAP_TEXT_BUFLEN];
1041         size_t textlen = sizeof txtbuf;
1042
1043         struct berval   bdn = {0, NULL}, dn, ndn;
1044         int             rc;
1045
1046         *modlist = NULL;
1047
1048         if ( ldap_msgtype( msg ) != LDAP_RES_SEARCH_ENTRY ) {
1049                 Debug( LDAP_DEBUG_ANY,
1050                         "Message type should be entry (%d)", ldap_msgtype( msg ), 0, 0 );
1051                 return -1;
1052         }
1053
1054         op->o_tag = LDAP_REQ_ADD;
1055
1056         rc = ldap_get_dn_ber( si->si_ld, msg, &ber, &bdn );
1057
1058         if ( rc != LDAP_SUCCESS ) {
1059                 Debug( LDAP_DEBUG_ANY,
1060                         "syncrepl_message_to_entry : dn get failed (%d)", rc, 0, 0 );
1061                 return rc;
1062         }
1063
1064         dnPrettyNormal( NULL, &bdn, &dn, &ndn, op->o_tmpmemctx );
1065         ber_dupbv( &op->o_req_dn, &dn );
1066         ber_dupbv( &op->o_req_ndn, &ndn );
1067         slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
1068         slap_sl_free( dn.bv_val, op->o_tmpmemctx );
1069
1070         if ( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_DELETE ) {
1071                 if ( entry )
1072                         *entry = NULL;
1073                 return LDAP_SUCCESS;
1074         }
1075
1076         if ( entry == NULL ) {
1077                 return -1;
1078         }
1079
1080         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ) );
1081         *entry = e;
1082         e->e_name = op->o_req_dn;
1083         e->e_nname = op->o_req_ndn;
1084
1085         while ( ber_remaining( ber ) ) {
1086                 if ( (ber_scanf( ber, "{mW}", &tmp.sml_type, &tmp.sml_values ) ==
1087                         LBER_ERROR ) || BER_BVISNULL( &tmp.sml_type ) )
1088                 {
1089                         break;
1090                 }
1091
1092                 mod  = (Modifications *) ch_malloc( sizeof( Modifications ));
1093
1094                 mod->sml_op = LDAP_MOD_REPLACE;
1095                 mod->sml_next = NULL;
1096                 mod->sml_desc = NULL;
1097                 mod->sml_type = tmp.sml_type;
1098                 mod->sml_values = tmp.sml_values;
1099                 mod->sml_nvalues = NULL;
1100
1101                 *modtail = mod;
1102                 modtail = &mod->sml_next;
1103         }
1104
1105         if ( *modlist == NULL ) {
1106                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: no attributes\n",
1107                         0, 0, 0 );
1108                 rc = -1;
1109                 goto done;
1110         }
1111
1112         rc = slap_mods_check( *modlist, 1, &text, txtbuf, textlen, NULL );
1113
1114         if ( rc != LDAP_SUCCESS ) {
1115                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods check (%s)\n",
1116                         text, 0, 0 );
1117                 goto done;
1118         }
1119
1120         /* Strip out dynamically generated attrs */
1121         for ( modtail = modlist; *modtail ; ) {
1122                 mod = *modtail;
1123                 if ( mod->sml_desc->ad_type->sat_flags & SLAP_AT_DYNAMIC ) {
1124                         *modtail = mod->sml_next;
1125                         slap_mod_free( &mod->sml_mod, 0 );
1126                         ch_free( mod );
1127                 } else {
1128                         modtail = &mod->sml_next;
1129                 }
1130         }
1131
1132         /* Strip out attrs in exattrs list */
1133         for ( modtail = modlist; *modtail ; ) {
1134                 mod = *modtail;
1135                 if ( ldap_charray_inlist( si->si_exattrs,
1136                                         mod->sml_desc->ad_type->sat_cname.bv_val )) {
1137                         *modtail = mod->sml_next;
1138                         slap_mod_free( &mod->sml_mod, 0 );
1139                         ch_free( mod );
1140                 } else {
1141                         modtail = &mod->sml_next;
1142                 }
1143         }
1144
1145         rc = slap_mods2entry( *modlist, &e, 1, 1, &text, txtbuf, textlen);
1146         if( rc != LDAP_SUCCESS ) {
1147                 Debug( LDAP_DEBUG_ANY, "syncrepl_message_to_entry: mods2entry (%s)\n",
1148                         text, 0, 0 );
1149         }
1150
1151 done:
1152         ber_free ( ber, 0 );
1153         if ( rc != LDAP_SUCCESS ) {
1154                 if ( e ) {
1155                         entry_free( e );
1156                         *entry = e = NULL;
1157                 }
1158         }
1159
1160         return rc;
1161 }
1162
1163 int
1164 syncrepl_entry(
1165         syncinfo_t* si,
1166         Operation *op,
1167         Entry* entry,
1168         Modifications* modlist,
1169         int syncstate,
1170         struct berval* syncUUID,
1171         struct sync_cookie* syncCookie_req )
1172 {
1173         Backend *be = op->o_bd;
1174         slap_callback   cb = { NULL };
1175         struct berval   *syncuuid_bv = NULL;
1176         struct berval   syncUUID_strrep = BER_BVNULL;
1177         struct berval   uuid_bv = BER_BVNULL;
1178
1179         SlapReply       rs_search = {REP_RESULT};
1180         SlapReply       rs_delete = {REP_RESULT};
1181         SlapReply       rs_add = {REP_RESULT};
1182         SlapReply       rs_modify = {REP_RESULT};
1183         Filter f = {0};
1184         AttributeAssertion ava = {0};
1185         int rc = LDAP_SUCCESS;
1186         int ret = LDAP_SUCCESS;
1187
1188         struct berval pdn = BER_BVNULL;
1189         struct berval org_req_dn = BER_BVNULL;
1190         struct berval org_req_ndn = BER_BVNULL;
1191         struct berval org_dn = BER_BVNULL;
1192         struct berval org_ndn = BER_BVNULL;
1193         int     org_managedsait;
1194
1195         switch( syncstate ) {
1196         case LDAP_SYNC_PRESENT:
1197                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1198                                         "syncrepl_entry",
1199                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_PRESENT)", 0 );
1200                 break;
1201         case LDAP_SYNC_ADD:
1202                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1203                                         "syncrepl_entry",
1204                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_ADD)", 0 );
1205                 break;
1206         case LDAP_SYNC_DELETE:
1207                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1208                                         "syncrepl_entry",
1209                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_DELETE)", 0 );
1210                 break;
1211         case LDAP_SYNC_MODIFY:
1212                 Debug( LDAP_DEBUG_SYNC, "%s: %s\n",
1213                                         "syncrepl_entry",
1214                                         "LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_MODIFY)", 0 );
1215                 break;
1216         default:
1217                 Debug( LDAP_DEBUG_ANY, "%s: %s\n",
1218                                         "syncrepl_entry",
1219                                         "LDAP_RES_SEARCH_ENTRY(UNKNOWN syncstate)", 0 );
1220         }
1221
1222         if (( syncstate == LDAP_SYNC_PRESENT || syncstate == LDAP_SYNC_ADD )) {
1223                 if ( !si->si_refreshPresent ) {
1224                         syncuuid_bv = ber_dupbv( NULL, syncUUID );
1225                         avl_insert( &si->si_presentlist, (caddr_t) syncuuid_bv,
1226                                 syncuuid_cmp, avl_dup_error );
1227                 }
1228         }
1229
1230         if ( syncstate == LDAP_SYNC_PRESENT ) {
1231                 return 0;
1232         } else if ( syncstate != LDAP_SYNC_DELETE ) {
1233                 if ( entry == NULL ) {
1234                         return 0;
1235                 }
1236         }
1237
1238         f.f_choice = LDAP_FILTER_EQUALITY;
1239         f.f_ava = &ava;
1240         ava.aa_desc = slap_schema.si_ad_entryUUID;
1241         (void)slap_uuidstr_from_normalized( &syncUUID_strrep, syncUUID, op->o_tmpmemctx );
1242         ava.aa_value = *syncUUID;
1243         op->ors_filter = &f;
1244
1245         op->ors_filterstr.bv_len = STRLENOF( "entryUUID=" ) + syncUUID->bv_len;
1246         op->ors_filterstr.bv_val = (char *) slap_sl_malloc(
1247                 op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
1248         AC_MEMCPY( op->ors_filterstr.bv_val, "entryUUID=", STRLENOF( "entryUUID=" ) );
1249         AC_MEMCPY( &op->ors_filterstr.bv_val[STRLENOF( "entryUUID=" )],
1250                 syncUUID->bv_val, syncUUID->bv_len );
1251         op->ors_filterstr.bv_val[op->ors_filterstr.bv_len] = '\0';
1252
1253         op->o_tag = LDAP_REQ_SEARCH;
1254         op->ors_scope = LDAP_SCOPE_SUBTREE;
1255
1256         /* get syncrepl cookie of shadow replica from subentry */
1257         op->o_req_dn = si->si_base;
1258         op->o_req_ndn = si->si_base;
1259
1260         op->o_time = slap_get_time();
1261         op->ors_tlimit = SLAP_NO_LIMIT;
1262         op->ors_slimit = 1;
1263
1264         op->ors_attrs = slap_anlist_no_attrs;
1265         op->ors_attrsonly = 1;
1266
1267         /* set callback function */
1268         op->o_callback = &cb;
1269         cb.sc_response = dn_callback;
1270         cb.sc_private = si;
1271
1272         BER_BVZERO( &si->si_syncUUID_ndn );
1273
1274         if ( limits_check( op, &rs_search ) == 0 ) {
1275                 rc = be->be_search( op, &rs_search );
1276                 Debug( LDAP_DEBUG_SYNC,
1277                                 "syncrepl_entry: %s (%d)\n",
1278                                 "be_search", rc, 0 );
1279         }
1280
1281         if ( !BER_BVISNULL( &op->ors_filterstr ) ) {
1282                 slap_sl_free( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1283         }
1284
1285         cb.sc_response = null_callback;
1286         cb.sc_private = si;
1287
1288         if ( entry && entry->e_name.bv_val ) {
1289                 Debug( LDAP_DEBUG_SYNC,
1290                                 "syncrepl_entry: %s\n",
1291                                 entry->e_name.bv_val, 0, 0 );
1292         } else {
1293                 Debug( LDAP_DEBUG_SYNC,
1294                                 "syncrepl_entry: %s\n",
1295                                 si->si_syncUUID_ndn.bv_val, 0, 0 );
1296         }
1297
1298         if ( rs_search.sr_err == LDAP_SUCCESS &&
1299                  !BER_BVISNULL( &si->si_syncUUID_ndn ))
1300         {
1301                 char *subseq_ptr;
1302
1303                 if ( syncstate != LDAP_SYNC_DELETE ) {
1304                         op->o_no_psearch = 1;
1305                 }
1306
1307                 ber_dupbv( &op->o_sync_csn, syncCookie_req->ctxcsn );
1308                 if ( !BER_BVISNULL( &op->o_sync_csn ) ) {
1309                         subseq_ptr = strstr( op->o_sync_csn.bv_val, "#0000" );
1310                         subseq_ptr += 4;
1311                         *subseq_ptr = '1';
1312                 }
1313
1314                 op->o_req_dn = si->si_syncUUID_ndn;
1315                 op->o_req_ndn = si->si_syncUUID_ndn;
1316                 op->o_tag = LDAP_REQ_DELETE;
1317                 rc = be->be_delete( op, &rs_delete );
1318                 Debug( LDAP_DEBUG_SYNC,
1319                                 "syncrepl_entry: %s (%d)\n",
1320                                 "be_delete", rc, 0 );
1321
1322                 org_req_dn = op->o_req_dn;
1323                 org_req_ndn = op->o_req_ndn;
1324                 org_dn = op->o_dn;
1325                 org_ndn = op->o_ndn;
1326                 org_managedsait = get_manageDSAit( op );
1327                 op->o_dn = op->o_bd->be_rootdn;
1328                 op->o_ndn = op->o_bd->be_rootndn;
1329                 op->o_managedsait = 1;
1330
1331                 while ( rs_delete.sr_err == LDAP_SUCCESS && op->o_delete_glue_parent ) {
1332                         op->o_delete_glue_parent = 0;
1333                         if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
1334                                 slap_callback cb = { NULL };
1335                                 cb.sc_response = slap_null_cb;
1336                                 dnParent( &op->o_req_ndn, &pdn );
1337                                 op->o_req_dn = pdn;
1338                                 op->o_req_ndn = pdn;
1339                                 op->o_callback = &cb;
1340                                 op->o_bd->be_delete( op, &rs_delete );
1341                         } else {
1342                                 break;
1343                     }
1344                 }
1345
1346                 op->o_managedsait = org_managedsait;
1347                 op->o_dn = org_dn;
1348                 op->o_ndn = org_ndn;
1349                 op->o_req_dn = org_req_dn;
1350                 op->o_req_ndn = org_req_ndn;
1351                 op->o_delete_glue_parent = 0;
1352
1353                 op->o_no_psearch = 0;
1354         }
1355
1356         switch ( syncstate ) {
1357         case LDAP_SYNC_ADD:
1358         case LDAP_SYNC_MODIFY:
1359                 if ( rs_search.sr_err == LDAP_SUCCESS ||
1360                          rs_search.sr_err == LDAP_REFERRAL ||
1361                          rs_search.sr_err == LDAP_NO_SUCH_OBJECT ||
1362                          rs_search.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF )
1363                 {
1364                         attr_delete( &entry->e_attrs, slap_schema.si_ad_entryUUID );
1365                         attr_merge_one( entry, slap_schema.si_ad_entryUUID,
1366                                 &syncUUID_strrep, syncUUID );
1367
1368                         op->o_tag = LDAP_REQ_ADD;
1369                         op->ora_e = entry;
1370                         op->o_req_dn = entry->e_name;
1371                         op->o_req_ndn = entry->e_nname;
1372
1373                         rc = be->be_add( op, &rs_add );
1374                         Debug( LDAP_DEBUG_SYNC,
1375                                         "syncrepl_entry: %s (%d)\n",
1376                                         "be_add", rc, 0 );
1377
1378                         if ( rs_add.sr_err != LDAP_SUCCESS ) {
1379                                 if ( rs_add.sr_err == LDAP_ALREADY_EXISTS &&
1380                                          rs_search.sr_err != LDAP_NO_SUCH_OBJECT ) {
1381                                         Modifications *mod;
1382                                         Modifications *modtail = modlist;
1383
1384                                         assert( modlist );
1385
1386                                         for ( mod = modlist; mod != NULL; mod = mod->sml_next ) {
1387                                                 modtail = mod;
1388                                         }
1389
1390                                         mod = (Modifications *)ch_calloc(1, sizeof(Modifications));
1391                                         ber_dupbv( &uuid_bv, syncUUID );
1392                                         mod->sml_op = LDAP_MOD_REPLACE;
1393                                         mod->sml_desc = slap_schema.si_ad_entryUUID;
1394                                         mod->sml_type = mod->sml_desc->ad_cname;
1395                                         ber_bvarray_add( &mod->sml_values, &uuid_bv );
1396                                         modtail->sml_next = mod;
1397
1398                                         op->o_tag = LDAP_REQ_MODIFY;
1399                                         op->orm_modlist = modlist;
1400                                         op->o_req_dn = entry->e_name;
1401                                         op->o_req_ndn = entry->e_nname;
1402
1403                                         rc = be->be_modify( op, &rs_modify );
1404                                         Debug( LDAP_DEBUG_SYNC,
1405                                                         "syncrepl_entry: %s (%d)\n",
1406                                                         "be_modify", rc, 0 );
1407                                         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
1408                                                 Debug( LDAP_DEBUG_ANY,
1409                                                         "syncrepl_entry : be_modify failed (%d)\n",
1410                                                         rs_modify.sr_err, 0, 0 );
1411                                         }
1412                                         ret = 1;
1413                                         goto done;
1414                                 } else if ( rs_modify.sr_err == LDAP_REFERRAL ||
1415                                                         rs_modify.sr_err == LDAP_NO_SUCH_OBJECT ) {
1416                                         syncrepl_add_glue( op, entry );
1417                                         ret = 0;
1418                                         goto done;
1419                                 } else {
1420                                         Debug( LDAP_DEBUG_ANY,
1421                                                 "syncrepl_entry : be_add failed (%d)\n",
1422                                                 rs_add.sr_err, 0, 0 );
1423                                         ret = 1;
1424                                         goto done;
1425                                 }
1426                         } else {
1427                                 be_entry_release_w( op, entry );
1428                                 ret = 0;
1429                                 goto done;
1430                         }
1431                 } else {
1432                         Debug( LDAP_DEBUG_ANY,
1433                                 "syncrepl_entry : be_search failed (%d)\n",
1434                                 rs_search.sr_err, 0, 0 );
1435                         ret = 1;
1436                         goto done;
1437                 }
1438
1439         case LDAP_SYNC_DELETE :
1440                 /* Already deleted */
1441                 ret = 0;
1442                 goto done;
1443
1444         default :
1445                 Debug( LDAP_DEBUG_ANY,
1446                         "syncrepl_entry : unknown syncstate\n", 0, 0, 0 );
1447                 ret = 1;
1448                 goto done;
1449         }
1450
1451 done :
1452
1453         if ( !BER_BVISNULL( &syncUUID_strrep ) ) {
1454                 slap_sl_free( syncUUID_strrep.bv_val, op->o_tmpmemctx );
1455                 BER_BVZERO( &syncUUID_strrep );
1456         }
1457         if ( !BER_BVISNULL( &si->si_syncUUID_ndn ) ) {
1458                 ch_free( si->si_syncUUID_ndn.bv_val );
1459                 BER_BVZERO( &si->si_syncUUID_ndn );
1460         }
1461         return ret;
1462 }
1463
1464 static struct berval gcbva[] = {
1465         BER_BVC("top"),
1466         BER_BVC("glue"),
1467         BER_BVNULL
1468 };
1469
1470 static void
1471 syncrepl_del_nonpresent(
1472         Operation *op,
1473         syncinfo_t *si )
1474 {
1475         Backend* be = op->o_bd;
1476         slap_callback   cb = { NULL };
1477         SlapReply       rs_search = {REP_RESULT};
1478         SlapReply       rs_delete = {REP_RESULT};
1479         SlapReply       rs_modify = {REP_RESULT};
1480         struct nonpresent_entry *np_list, *np_prev;
1481         int rc;
1482         Modifications *ml;
1483         Modifications *mlnext;
1484         Modifications *mod;
1485         Modifications *modlist = NULL;
1486         Modifications **modtail = &modlist;
1487         AttributeName   an[2];
1488
1489         struct berval pdn = BER_BVNULL;
1490         struct berval org_req_dn = BER_BVNULL;
1491         struct berval org_req_ndn = BER_BVNULL;
1492         struct berval org_dn = BER_BVNULL;
1493         struct berval org_ndn = BER_BVNULL;
1494         int     org_managedsait;
1495
1496         op->o_req_dn = si->si_base;
1497         op->o_req_ndn = si->si_base;
1498
1499         cb.sc_response = nonpresent_callback;
1500         cb.sc_private = si;
1501
1502         op->o_callback = &cb;
1503         op->o_tag = LDAP_REQ_SEARCH;
1504         op->ors_scope = si->si_scope;
1505         op->ors_deref = LDAP_DEREF_NEVER;
1506         op->o_time = slap_get_time();
1507         op->ors_tlimit = SLAP_NO_LIMIT;
1508         op->ors_slimit = SLAP_NO_LIMIT;
1509
1510         memset( &an[0], 0, 2 * sizeof( AttributeName ) );
1511         an[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
1512         an[0].an_desc = slap_schema.si_ad_entryUUID;
1513         op->ors_attrs = an;
1514
1515         op->ors_attrsonly = 0;
1516         op->ors_filter = str2filter_x( op, si->si_filterstr.bv_val );
1517         op->ors_filterstr = si->si_filterstr;
1518
1519         op->o_nocaching = 1;
1520         op->o_managedsait = 0;
1521
1522         if ( limits_check( op, &rs_search ) == 0 ) {
1523                 rc = be->be_search( op, &rs_search );
1524         }
1525
1526         op->o_managedsait = 1;
1527         op->o_nocaching = 0;
1528
1529         if ( op->ors_filter ) filter_free_x( op, op->ors_filter );
1530
1531         if ( !LDAP_LIST_EMPTY( &si->si_nonpresentlist ) ) {
1532                 np_list = LDAP_LIST_FIRST( &si->si_nonpresentlist );
1533                 while ( np_list != NULL ) {
1534                         LDAP_LIST_REMOVE( np_list, npe_link );
1535                         np_prev = np_list;
1536                         np_list = LDAP_LIST_NEXT( np_list, npe_link );
1537                         op->o_tag = LDAP_REQ_DELETE;
1538                         op->o_callback = &cb;
1539                         cb.sc_response = null_callback;
1540                         cb.sc_private = si;
1541                         op->o_req_dn = *np_prev->npe_name;
1542                         op->o_req_ndn = *np_prev->npe_nname;
1543                         rc = op->o_bd->be_delete( op, &rs_delete );
1544
1545                         if ( rs_delete.sr_err == LDAP_NOT_ALLOWED_ON_NONLEAF ) {
1546                                 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1547                                 mod->sml_op = LDAP_MOD_REPLACE;
1548                                 mod->sml_desc = slap_schema.si_ad_objectClass;
1549                                 mod->sml_type = mod->sml_desc->ad_cname;
1550                                 mod->sml_values = &gcbva[0];
1551                                 *modtail = mod;
1552                                 modtail = &mod->sml_next;
1553
1554                                 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1555                                 mod->sml_op = LDAP_MOD_REPLACE;
1556                                 mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
1557                                 mod->sml_type = mod->sml_desc->ad_cname;
1558                                 mod->sml_values = &gcbva[1];
1559                                 *modtail = mod;
1560                                 modtail = &mod->sml_next;
1561
1562                                 op->o_tag = LDAP_REQ_MODIFY;
1563                                 op->orm_modlist = modlist;
1564
1565                                 rc = be->be_modify( op, &rs_modify );
1566
1567                                 for ( ml = modlist; ml != NULL; ml = mlnext ) {
1568                                         mlnext = ml->sml_next;
1569                                         free( ml );
1570                                 }
1571                         }
1572
1573                         org_req_dn = op->o_req_dn;
1574                         org_req_ndn = op->o_req_ndn;
1575                         org_dn = op->o_dn;
1576                         org_ndn = op->o_ndn;
1577                         org_managedsait = get_manageDSAit( op );
1578                         op->o_dn = op->o_bd->be_rootdn;
1579                         op->o_ndn = op->o_bd->be_rootndn;
1580                         op->o_managedsait = 1;
1581
1582                         while ( rs_delete.sr_err == LDAP_SUCCESS &&
1583                                         op->o_delete_glue_parent ) {
1584                                 op->o_delete_glue_parent = 0;
1585                                 if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
1586                                         slap_callback cb = { NULL };
1587                                         cb.sc_response = slap_null_cb;
1588                                         dnParent( &op->o_req_ndn, &pdn );
1589                                         op->o_req_dn = pdn;
1590                                         op->o_req_ndn = pdn;
1591                                         op->o_callback = &cb;
1592                                         /* give it a root privil ? */
1593                                         op->o_bd->be_delete( op, &rs_delete );
1594                                 } else {
1595                                         break;
1596                             }
1597                         }
1598
1599                         op->o_managedsait = org_managedsait;
1600                         op->o_dn = org_dn;
1601                         op->o_ndn = org_ndn;
1602                         op->o_req_dn = org_req_dn;
1603                         op->o_req_ndn = org_req_ndn;
1604                         op->o_delete_glue_parent = 0;
1605
1606                         ber_bvfree( np_prev->npe_name );
1607                         ber_bvfree( np_prev->npe_nname );
1608                         BER_BVZERO( &op->o_req_dn );
1609                         BER_BVZERO( &op->o_req_ndn );
1610                         ch_free( np_prev );
1611                 }
1612         }
1613
1614         return;
1615 }
1616
1617 void
1618 syncrepl_add_glue(
1619         Operation* op,
1620         Entry *e )
1621 {
1622         Backend *be = op->o_bd;
1623         slap_callback cb = { NULL };
1624         Attribute       *a;
1625         int     rc;
1626         int suffrdns;
1627         int i;
1628         struct berval dn = {0, NULL};
1629         struct berval ndn = {0, NULL};
1630         Entry   *glue;
1631         SlapReply       rs_add = {REP_RESULT};
1632         char    *ptr, *comma;
1633
1634         op->o_tag = LDAP_REQ_ADD;
1635         op->o_callback = &cb;
1636         cb.sc_response = null_callback;
1637         cb.sc_private = NULL;
1638
1639         dn = e->e_name;
1640         ndn = e->e_nname;
1641
1642         /* count RDNs in suffix */
1643         if ( !BER_BVISEMPTY( &be->be_nsuffix[0] ) ) {
1644                 for ( i = 0, ptr = be->be_nsuffix[0].bv_val; ptr; ptr = strchr( ptr, ',' ) ) {
1645                         ptr++;
1646                         i++;
1647                 }
1648                 suffrdns = i;
1649         } else {
1650                 /* suffix is "" */
1651                 suffrdns = 0;
1652         }
1653
1654         /* Start with BE suffix */
1655         for ( i = 0, ptr = NULL; i < suffrdns; i++ ) {
1656                 comma = strrchr( dn.bv_val, ',' );
1657                 if ( ptr ) *ptr = ',';
1658                 if ( comma ) *comma = '\0';
1659                 ptr = comma;
1660         }
1661         if ( ptr ) {
1662                 *ptr++ = ',';
1663                 dn.bv_len -= ptr - dn.bv_val;
1664                 dn.bv_val = ptr;
1665         }
1666         /* the normalizedDNs are always the same length, no counting
1667          * required.
1668          */
1669         if ( ndn.bv_len > be->be_nsuffix[0].bv_len ) {
1670                 ndn.bv_val += ndn.bv_len - be->be_nsuffix[0].bv_len;
1671                 ndn.bv_len = be->be_nsuffix[0].bv_len;
1672         }
1673
1674         while ( ndn.bv_val > e->e_nname.bv_val ) {
1675                 glue = (Entry *) ch_calloc( 1, sizeof(Entry) );
1676                 ber_dupbv( &glue->e_name, &dn );
1677                 ber_dupbv( &glue->e_nname, &ndn );
1678
1679                 a = ch_calloc( 1, sizeof( Attribute ));
1680                 a->a_desc = slap_schema.si_ad_objectClass;
1681
1682                 a->a_vals = ch_calloc( 3, sizeof( struct berval ));
1683                 ber_dupbv( &a->a_vals[0], &gcbva[0] );
1684                 ber_dupbv( &a->a_vals[1], &gcbva[1] );
1685                 ber_dupbv( &a->a_vals[2], &gcbva[2] );
1686
1687                 a->a_nvals = a->a_vals;
1688
1689                 a->a_next = glue->e_attrs;
1690                 glue->e_attrs = a;
1691
1692                 a = ch_calloc( 1, sizeof( Attribute ));
1693                 a->a_desc = slap_schema.si_ad_structuralObjectClass;
1694
1695                 a->a_vals = ch_calloc( 2, sizeof( struct berval ));
1696                 ber_dupbv( &a->a_vals[0], &gcbva[1] );
1697                 ber_dupbv( &a->a_vals[1], &gcbva[2] );
1698
1699                 a->a_nvals = a->a_vals;
1700
1701                 a->a_next = glue->e_attrs;
1702                 glue->e_attrs = a;
1703
1704                 op->o_req_dn = glue->e_name;
1705                 op->o_req_ndn = glue->e_nname;
1706                 op->ora_e = glue;
1707                 rc = be->be_add ( op, &rs_add );
1708                 if ( rs_add.sr_err == LDAP_SUCCESS ) {
1709                         be_entry_release_w( op, glue );
1710                 } else {
1711                 /* incl. ALREADY EXIST */
1712                         entry_free( glue );
1713                 }
1714
1715                 /* Move to next child */
1716                 for (ptr = dn.bv_val-2; ptr > e->e_name.bv_val && *ptr != ','; ptr--) {
1717                         /* empty */
1718                 }
1719                 if ( ptr == e->e_name.bv_val ) break;
1720                 dn.bv_val = ++ptr;
1721                 dn.bv_len = e->e_name.bv_len - (ptr-e->e_name.bv_val);
1722                 for( ptr = ndn.bv_val-2;
1723                         ptr > e->e_nname.bv_val && *ptr != ',';
1724                         ptr--)
1725                 {
1726                         /* empty */
1727                 }
1728                 ndn.bv_val = ++ptr;
1729                 ndn.bv_len = e->e_nname.bv_len - (ptr-e->e_nname.bv_val);
1730         }
1731
1732         op->o_req_dn = e->e_name;
1733         op->o_req_ndn = e->e_nname;
1734         op->ora_e = e;
1735         rc = be->be_add ( op, &rs_add );
1736         if ( rs_add.sr_err == LDAP_SUCCESS ) {
1737                 be_entry_release_w( op, e );
1738         } else {
1739                 entry_free( e );
1740         }
1741
1742         return;
1743 }
1744
1745 static struct berval ocbva[] = {
1746         BER_BVC("top"),
1747         BER_BVC("subentry"),
1748         BER_BVC("syncConsumerSubentry"),
1749         BER_BVNULL
1750 };
1751
1752 static struct berval cnbva[] = {
1753         BER_BVNULL,
1754         BER_BVNULL
1755 };
1756
1757 static struct berval ssbva[] = {
1758         BER_BVC("{}"),
1759         BER_BVNULL
1760 };
1761
1762 static struct berval scbva[] = {
1763         BER_BVNULL,
1764         BER_BVNULL
1765 };
1766
1767 void
1768 syncrepl_updateCookie(
1769         syncinfo_t *si,
1770         Operation *op,
1771         struct berval *pdn,
1772         struct sync_cookie *syncCookie )
1773 {
1774         Backend *be = op->o_bd;
1775         Modifications *ml;
1776         Modifications *mlnext;
1777         Modifications *mod;
1778         Modifications *modlist = NULL;
1779         Modifications **modtail = &modlist;
1780
1781         const char      *text;
1782         char txtbuf[SLAP_TEXT_BUFLEN];
1783         size_t textlen = sizeof txtbuf;
1784
1785         Entry* e = NULL;
1786         int rc;
1787
1788         char syncrepl_cbuf[sizeof(CN_STR SYNCREPL_STR)];
1789         struct berval slap_syncrepl_dn_bv = BER_BVNULL;
1790         struct berval slap_syncrepl_cn_bv = BER_BVNULL;
1791
1792         slap_callback cb = { NULL };
1793         SlapReply       rs_add = {REP_RESULT};
1794         SlapReply       rs_modify = {REP_RESULT};
1795
1796         slap_sync_cookie_free( &si->si_syncCookie, 0 );
1797         slap_dup_sync_cookie( &si->si_syncCookie, syncCookie );
1798
1799         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1800         mod->sml_op = LDAP_MOD_REPLACE;
1801         mod->sml_desc = slap_schema.si_ad_objectClass;
1802         mod->sml_type = mod->sml_desc->ad_cname;
1803         mod->sml_values = ocbva;
1804         *modtail = mod;
1805         modtail = &mod->sml_next;
1806
1807         ber_dupbv( &cnbva[0], (struct berval *) &slap_syncrepl_bvc );
1808         assert( si->si_rid < 1000 );
1809         cnbva[0].bv_len = snprintf( cnbva[0].bv_val,
1810                 slap_syncrepl_bvc.bv_len + 1,
1811                 "syncrepl%ld", si->si_rid );
1812         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1813         mod->sml_op = LDAP_MOD_REPLACE;
1814         mod->sml_desc = slap_schema.si_ad_cn;
1815         mod->sml_type = mod->sml_desc->ad_cname;
1816         mod->sml_values = cnbva;
1817         *modtail = mod;
1818         modtail = &mod->sml_next;
1819
1820         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1821         mod->sml_op = LDAP_MOD_REPLACE;
1822         mod->sml_desc = slap_schema.si_ad_subtreeSpecification;
1823         mod->sml_type = mod->sml_desc->ad_cname;
1824         mod->sml_values = ssbva;
1825         *modtail = mod;
1826         modtail = &mod->sml_next;
1827
1828         /* Keep this last, so we can avoid touching the previous
1829          * attributes unnecessarily.
1830          */
1831         if ( scbva[0].bv_val ) ch_free( scbva[0].bv_val );
1832         ber_dupbv( &scbva[0], &si->si_syncCookie.octet_str[0] );
1833         mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ));
1834         mod->sml_op = LDAP_MOD_REPLACE;
1835         mod->sml_desc = slap_schema.si_ad_syncreplCookie;
1836         mod->sml_type = mod->sml_desc->ad_cname;
1837         mod->sml_values = scbva;
1838         *modtail = mod;
1839         modtail = &mod->sml_next;
1840
1841         mlnext = mod;
1842
1843         op->o_tag = LDAP_REQ_ADD;
1844         rc = slap_mods_opattrs( op, modlist, modtail,
1845                  &text, txtbuf, textlen, 0 );
1846
1847         for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
1848                 ml->sml_op = LDAP_MOD_REPLACE;
1849         }
1850
1851         if( rc != LDAP_SUCCESS ) {
1852                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods opattrs (%s)\n",
1853                          text, 0, 0 );
1854         }
1855
1856         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
1857
1858         slap_syncrepl_cn_bv.bv_val = syncrepl_cbuf;
1859         assert( si->si_rid < 1000 );
1860         slap_syncrepl_cn_bv.bv_len = snprintf( slap_syncrepl_cn_bv.bv_val,
1861                 slap_syncrepl_cn_bvc.bv_len + 1,
1862                 "cn=syncrepl%ld", si->si_rid );
1863
1864         build_new_dn( &slap_syncrepl_dn_bv, pdn, &slap_syncrepl_cn_bv,
1865                 op->o_tmpmemctx );
1866         ber_dupbv( &e->e_name, &slap_syncrepl_dn_bv );
1867         ber_dupbv( &e->e_nname, &slap_syncrepl_dn_bv );
1868
1869         if ( !BER_BVISNULL( &slap_syncrepl_dn_bv ) ) {
1870                 slap_sl_free( slap_syncrepl_dn_bv.bv_val, op->o_tmpmemctx );
1871         }
1872
1873         e->e_attrs = NULL;
1874
1875         rc = slap_mods2entry( modlist, &e, 1, 1, &text, txtbuf, textlen );
1876
1877         if( rc != LDAP_SUCCESS ) {
1878                 Debug( LDAP_DEBUG_ANY, "syncrepl_updateCookie: mods2entry (%s)\n",
1879                          text, 0, 0 );
1880         }
1881
1882         cb.sc_response = null_callback;
1883         cb.sc_private = si;
1884
1885         op->o_callback = &cb;
1886         op->o_req_dn = e->e_name;
1887         op->o_req_ndn = e->e_nname;
1888
1889         /* update persistent cookie */
1890 update_cookie_retry:
1891         op->o_tag = LDAP_REQ_MODIFY;
1892         /* Just modify the cookie value, not the entire entry */
1893         op->orm_modlist = mod;
1894         rc = be->be_modify( op, &rs_modify );
1895
1896         if ( rs_modify.sr_err != LDAP_SUCCESS ) {
1897                 if ( rs_modify.sr_err == LDAP_REFERRAL ||
1898                          rs_modify.sr_err == LDAP_NO_SUCH_OBJECT ) {
1899                         op->o_tag = LDAP_REQ_ADD;
1900                         op->ora_e = e;
1901                         rc = be->be_add( op, &rs_add );
1902                         if ( rs_add.sr_err != LDAP_SUCCESS ) {
1903                                 if ( rs_add.sr_err == LDAP_ALREADY_EXISTS ) {
1904                                         goto update_cookie_retry;
1905                                 } else if ( rs_add.sr_err == LDAP_REFERRAL ||
1906                                                         rs_add.sr_err == LDAP_NO_SUCH_OBJECT ) {
1907                                         Debug( LDAP_DEBUG_ANY,
1908                                                 "cookie will be non-persistent\n",
1909                                                 0, 0, 0 );
1910                                 } else {
1911                                         Debug( LDAP_DEBUG_ANY,
1912                                                 "be_add failed (%d)\n", rs_add.sr_err, 0, 0 );
1913                                 }
1914                         } else {
1915                                 be_entry_release_w( op, e );
1916                                 goto done;
1917                         }
1918                 } else {
1919                         Debug( LDAP_DEBUG_ANY,
1920                                 "be_modify failed (%d)\n", rs_modify.sr_err, 0, 0 );
1921                 }
1922         }
1923
1924         if ( e != NULL ) {
1925                 entry_free( e );
1926         }
1927
1928 done :
1929
1930         if ( !BER_BVISNULL( &cnbva[0] ) ) {
1931                 ch_free( cnbva[0].bv_val );
1932                 BER_BVZERO( &cnbva[0] );
1933         }
1934         if ( !BER_BVISNULL( &scbva[0] ) ) {
1935                 ch_free( scbva[0].bv_val );
1936                 BER_BVZERO( &scbva[0] );
1937         }
1938
1939         if ( mlnext->sml_next ) {
1940                 slap_mods_free( mlnext->sml_next );
1941                 mlnext->sml_next = NULL;
1942         }
1943
1944         for (ml = modlist ; ml != NULL; ml = mlnext ) {
1945                 mlnext = ml->sml_next;
1946                 free( ml );
1947         }
1948
1949         return;
1950 }
1951
1952 int
1953 syncrepl_isupdate( Operation *op )
1954 {
1955         return ( syncrepl_isupdate_dn( op->o_bd, &op->o_ndn ));
1956 }
1957
1958 int
1959 syncrepl_isupdate_dn(
1960         Backend*                be,
1961         struct berval*  ndn )
1962 {
1963         syncinfo_t*     si;
1964         int                     ret = 0;
1965
1966         if ( !LDAP_STAILQ_EMPTY( &be->be_syncinfo )) {
1967                 LDAP_STAILQ_FOREACH( si, &be->be_syncinfo, si_next ) {
1968                         if ( ( ret = dn_match( &si->si_updatedn, ndn ) ) ) {
1969                                 return ret;
1970                         }
1971                 }
1972         }
1973         return 0;
1974 }
1975
1976 static int
1977 dn_callback(
1978         Operation*      op,
1979         SlapReply*      rs )
1980 {
1981         syncinfo_t *si = op->o_callback->sc_private;
1982
1983         if ( rs->sr_type == REP_SEARCH ) {
1984                 if ( !BER_BVISNULL( &si->si_syncUUID_ndn ) ) {
1985                         Debug( LDAP_DEBUG_ANY,
1986                                 "dn_callback : consistency error - "
1987                                 "entryUUID is not unique\n", 0, 0, 0 );
1988                 } else {
1989                         ber_dupbv_x( &si->si_syncUUID_ndn, &rs->sr_entry->e_nname, NULL );
1990                 }
1991         } else if ( rs->sr_type == REP_RESULT ) {
1992                 if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
1993                         Debug( LDAP_DEBUG_ANY,
1994                                 "dn_callback : consistency error - "
1995                                 "entryUUID is not unique\n", 0, 0, 0 );
1996                 }
1997         }
1998
1999         return LDAP_SUCCESS;
2000 }
2001
2002 static int
2003 nonpresent_callback(
2004         Operation*      op,
2005         SlapReply*      rs )
2006 {
2007         syncinfo_t *si = op->o_callback->sc_private;
2008         Attribute *a;
2009         int count = 0;
2010         struct berval* present_uuid = NULL;
2011         struct nonpresent_entry *np_entry;
2012
2013         if ( rs->sr_type == REP_RESULT ) {
2014                 count = avl_free( si->si_presentlist, avl_ber_bvfree );
2015                 si->si_presentlist = NULL;
2016
2017         } else if ( rs->sr_type == REP_SEARCH ) {
2018                 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
2019
2020                 if ( a == NULL ) return 0;
2021
2022                 present_uuid = avl_find( si->si_presentlist, &a->a_nvals[0],
2023                         syncuuid_cmp );
2024
2025                 if ( present_uuid == NULL ) {
2026                         np_entry = (struct nonpresent_entry *)
2027                                 ch_calloc( 1, sizeof( struct nonpresent_entry ));
2028                         np_entry->npe_name = ber_dupbv( NULL, &rs->sr_entry->e_name );
2029                         np_entry->npe_nname = ber_dupbv( NULL, &rs->sr_entry->e_nname );
2030                         LDAP_LIST_INSERT_HEAD( &si->si_nonpresentlist, np_entry, npe_link );
2031
2032                 } else {
2033                         avl_delete( &si->si_presentlist,
2034                                         &a->a_nvals[0], syncuuid_cmp );
2035                         ch_free( present_uuid->bv_val );
2036                         ch_free( present_uuid );
2037                 }
2038         }
2039         return LDAP_SUCCESS;
2040 }
2041
2042 static int
2043 null_callback(
2044         Operation*      op,
2045         SlapReply*      rs )
2046 {
2047         if ( rs->sr_err != LDAP_SUCCESS &&
2048                 rs->sr_err != LDAP_REFERRAL &&
2049                 rs->sr_err != LDAP_ALREADY_EXISTS &&
2050                 rs->sr_err != LDAP_NO_SUCH_OBJECT &&
2051                 rs->sr_err != LDAP_NOT_ALLOWED_ON_NONLEAF )
2052         {
2053                 Debug( LDAP_DEBUG_ANY,
2054                         "null_callback : error code 0x%x\n",
2055                         rs->sr_err, 0, 0 );
2056         }
2057         return LDAP_SUCCESS;
2058 }
2059
2060 Entry *
2061 slap_create_syncrepl_entry(
2062         Backend *be,
2063         struct berval *context_csn,
2064         struct berval *rdn,
2065         struct berval *cn )
2066 {
2067         Entry* e;
2068
2069         struct berval bv;
2070
2071         e = ( Entry * ) ch_calloc( 1, sizeof( Entry ));
2072
2073         attr_merge( e, slap_schema.si_ad_objectClass, ocbva, NULL );
2074
2075         attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
2076                 &ocbva[1], NULL );
2077
2078         attr_merge_one( e, slap_schema.si_ad_cn, cn, NULL );
2079
2080         if ( context_csn ) {
2081                 attr_merge_one( e, slap_schema.si_ad_syncreplCookie,
2082                         context_csn, NULL );
2083         }
2084
2085         BER_BVSTR( &bv, "{}" );
2086         attr_merge_one( e, slap_schema.si_ad_subtreeSpecification, &bv, NULL );
2087
2088         build_new_dn( &e->e_name, &be->be_nsuffix[0], rdn, NULL );
2089         ber_dupbv( &e->e_nname, &e->e_name );
2090
2091         return e;
2092 }
2093
2094 struct berval *
2095 slap_uuidstr_from_normalized(
2096         struct berval* uuidstr,
2097         struct berval* normalized,
2098         void *ctx )
2099 {
2100         struct berval *new;
2101         unsigned char nibble;
2102         int i, d = 0;
2103
2104         if ( normalized == NULL ) return NULL;
2105         if ( normalized->bv_len != 16 ) return NULL;
2106
2107         if ( uuidstr ) {
2108                 new = uuidstr;
2109         } else {
2110                 new = (struct berval *)slap_sl_malloc( sizeof(struct berval), ctx );
2111                 if ( new == NULL ) {
2112                         return NULL;
2113                 }
2114         }
2115
2116         new->bv_len = 36;
2117
2118         if ( ( new->bv_val = slap_sl_malloc( new->bv_len + 1, ctx ) ) == NULL ) {
2119                 if ( new != uuidstr ) {
2120                         slap_sl_free( new, ctx );
2121                 }
2122                 return NULL;
2123         }
2124
2125         for ( i = 0; i < 16; i++ ) {
2126                 if ( i == 4 || i == 6 || i == 8 || i == 10 ) {
2127                         new->bv_val[(i<<1)+d] = '-';
2128                         d += 1;
2129                 }
2130
2131                 nibble = (normalized->bv_val[i] >> 4) & 0xF;
2132                 if ( nibble < 10 ) {
2133                         new->bv_val[(i<<1)+d] = nibble + '0';
2134                 } else {
2135                         new->bv_val[(i<<1)+d] = nibble - 10 + 'a';
2136                 }
2137
2138                 nibble = (normalized->bv_val[i]) & 0xF;
2139                 if ( nibble < 10 ) {
2140                         new->bv_val[(i<<1)+d+1] = nibble + '0';
2141                 } else {
2142                         new->bv_val[(i<<1)+d+1] = nibble - 10 + 'a';
2143                 }
2144         }
2145
2146         new->bv_val[new->bv_len] = '\0';
2147         return new;
2148 }
2149
2150 static int
2151 syncuuid_cmp( const void* v_uuid1, const void* v_uuid2 )
2152 {
2153         const struct berval *uuid1 = v_uuid1;
2154         const struct berval *uuid2 = v_uuid2;
2155         int rc = uuid1->bv_len - uuid2->bv_len;
2156         if ( rc ) return rc;
2157         return ( memcmp( uuid1->bv_val, uuid2->bv_val, uuid1->bv_len ) );
2158 }
2159
2160 static void
2161 avl_ber_bvfree( void *v_bv )
2162 {
2163         struct berval   *bv = (struct berval *)v_bv;
2164
2165         if( v_bv == NULL ) return;
2166         if ( !BER_BVISNULL( bv ) ) {
2167                 ch_free( bv->bv_val );
2168         }
2169         ch_free( (char *) bv );
2170 }
2171
2172 void
2173 syncinfo_free( syncinfo_t *sie )
2174 {
2175         if ( sie->si_provideruri ) {
2176                 ch_free( sie->si_provideruri );
2177         }
2178         if ( sie->si_provideruri_bv ) {
2179                 ber_bvarray_free( sie->si_provideruri_bv );
2180         }
2181         if ( sie->si_updatedn.bv_val ) {
2182                 ch_free( sie->si_updatedn.bv_val );
2183         }
2184         if ( sie->si_binddn ) {
2185                 ch_free( sie->si_binddn );
2186         }
2187         if ( sie->si_passwd ) {
2188                 ch_free( sie->si_passwd );
2189         }
2190         if ( sie->si_saslmech ) {
2191                 ch_free( sie->si_saslmech );
2192         }
2193         if ( sie->si_secprops ) {
2194                 ch_free( sie->si_secprops );
2195         }
2196         if ( sie->si_realm ) {
2197                 ch_free( sie->si_realm );
2198         }
2199         if ( sie->si_authcId ) {
2200                 ch_free( sie->si_authcId );
2201         }
2202         if ( sie->si_authzId ) {
2203                 ch_free( sie->si_authzId );
2204         }
2205         if ( sie->si_filterstr.bv_val ) {
2206                 ch_free( sie->si_filterstr.bv_val );
2207         }
2208         if ( sie->si_base.bv_val ) {
2209                 ch_free( sie->si_base.bv_val );
2210         }
2211         if ( sie->si_attrs ) {
2212                 int i = 0;
2213                 while ( sie->si_attrs[i] != NULL ) {
2214                         ch_free( sie->si_attrs[i] );
2215                         i++;
2216                 }
2217                 ch_free( sie->si_attrs );
2218         }
2219         if ( sie->si_exattrs ) {
2220                 int i = 0;
2221                 while ( sie->si_exattrs[i] != NULL ) {
2222                         ch_free( sie->si_exattrs[i] );
2223                         i++;
2224                 }
2225                 ch_free( sie->si_exattrs );
2226         }
2227         if ( sie->si_anlist ) {
2228                 int i = 0;
2229                 while ( sie->si_anlist[i].an_name.bv_val != NULL ) {
2230                         ch_free( sie->si_anlist[i].an_name.bv_val );
2231                         i++;
2232                 }
2233                 ch_free( sie->si_anlist );
2234         }
2235         if ( sie->si_exanlist ) {
2236                 int i = 0;
2237                 while ( sie->si_exanlist[i].an_name.bv_val != NULL ) {
2238                         ch_free( sie->si_exanlist[i].an_name.bv_val );
2239                         i++;
2240                 }
2241                 ch_free( sie->si_exanlist );
2242         }
2243         if ( sie->si_retryinterval ) {
2244                 ch_free( sie->si_retryinterval );
2245         }
2246         if ( sie->si_retrynum ) {
2247                 ch_free( sie->si_retrynum );
2248         }
2249         if ( sie->si_retrynum_init ) {
2250                 ch_free( sie->si_retrynum_init );
2251         }
2252         slap_sync_cookie_free( &sie->si_syncCookie, 0 );
2253         if ( sie->si_syncUUID_ndn.bv_val ) {
2254                 ch_free( sie->si_syncUUID_ndn.bv_val );
2255         }
2256         if ( sie->si_presentlist ) {
2257             avl_free( sie->si_presentlist, avl_ber_bvfree );
2258         }
2259         if ( sie->si_ld ) {
2260                 ldap_ld_free( sie->si_ld, 1, NULL, NULL );
2261         }
2262         while ( !LDAP_LIST_EMPTY( &sie->si_nonpresentlist )) {
2263                 struct nonpresent_entry* npe;
2264                 npe = LDAP_LIST_FIRST( &sie->si_nonpresentlist );
2265                 LDAP_LIST_REMOVE( npe, npe_link );
2266                 if ( npe->npe_name ) {
2267                         if ( npe->npe_name->bv_val ) {
2268                                 ch_free( npe->npe_name->bv_val );
2269                         }
2270                         ch_free( npe->npe_name );
2271                 }
2272                 if ( npe->npe_nname ) {
2273                         if ( npe->npe_nname->bv_val ) {
2274                                 ch_free( npe->npe_nname->bv_val );
2275                         }
2276                         ch_free( npe->npe_nname );
2277                 }
2278                 ch_free( npe );
2279         }
2280         ch_free( sie );
2281 }